SYSTEMS OF CONNECTORS IN ASSEMBLY OF WEAR MEMBERS GEARED TO THE EARTH (Machine-translation by Google

专利摘要:
A fastener includes an elongated shaft having a head at the end, the head comprises a fastening adjustment that extends radially outward from the shaft. The head includes a gear cavity. The fastener also includes a cover that has a gear protrusion for insertion into the gear cavity of the cover such that the rotation of the cover produces the corresponding rotation of the head, the cover also comprises a contact part that has a plurality of flat surfaces that look radially outward. The fastener also includes a rotation-resistant element that has flat surfaces that face outwardly that fit with the flat surfaces that look radially outward from the contact part, the rotation-resistant element also includes an interference feature. extending radially outwardly, the rotation resistant element is flexible in a way that allows but resists rotation of the lid with respect to the rotation resistant element. (Machine-translation by Google Translate, not legally binding)
公开号:ES2734910A2
申请号:ES201931053
申请日:2017-05-11
公开日:2019-12-12
发明作者:Mohamad Bilal；Venkata Prakash Vegunta；Lawrence Ngigi Waweru；Isai Diaz
申请人:GH Hensley Industries Inc；
IPC主号:

专利说明:

[0001]
[0002]
[0003]
[0004] Priority Information
[0005]
[0006] The present patent application claims priority of US Provisional Patent Application No. 62 / 441,756, filed on January 3, 2017 and entitled "Connector with Clamp Spring for a Mounted Wear Member to Earth" and the US Provisional Patent Application No. 62 / 335,424 filed on May 12, 2016 and entitled "Bra for a Wear Member Assembly", whose inventions are hereby incorporated by reference in their entirety.
[0007]
[0008] Technical Field
[0009]
[0010] The present invention relates in general to assemblies of grooved wear members that include connectors to secure excavation wear members in place for use. More specifically, the present invention relates to fasteners that can use a deflection element to resist the passage between locked and unblocked positions to selectively secure the wear members to other wear members.
[0011] Background
[0012]
[0013] Equipment for the displacement of material, such as excavation buckets found in construction, mining and other earthmoving equipment, usually includes replaceable wear parts such as a ground gear. They are usually removably mounted to other base structures, such as excavation buckets and come into abrasive contact, wear and tear with the earth and other materials that are moving. For example, excavation tooth mounts provided in excavation equipment, such as excavation buckets and the like, normally they comprise a relatively massive adapter part that is properly anchored to the leading edge of the bucket. The adapter part usually includes a nose that projects forward. A replaceable tooth tip typically includes a backward facing cavity that removably receives the adapter nose. To retain the tooth tip on the adapter nose, transverse openings generally aligned both on the tooth tip and on the nose of the adapter can be formed and a suitable connector structure, such as a pin, is driven and retained in shape. forced into the aligned openings to detachably anchor the replaceable tooth tip over its associated adapter nose.
[0014]
[0015] During normal operations, the tooth experiences loading in several directions. If the tooth is not positioned on the nose in a stable manner, the loads experienced by the tooth may cause additional wear on the adapter. Accordingly, there is an improved wear member assembly that is selectively mounted on the fastener members one above the other or on the edge of the bucket.
[0016]
[0017] Summary
[0018]
[0019] According to some examples, a ground-mounted wear member assembly may include an adapter comprising a longitudinally projecting nose portion with a transverse cavity formed through the nose portion. The grooved wear member assembly may further include a wear member that has a back with a cavity for receiving the nose portion of the adapter. The wear member may have an outer surface for the ground gear and an inner surface that defines the cavity. The wear member may include a perforation that extends through a surface of the side wall from the outer surface to the inner surface. The perforation can be aligned with the transverse cavity of the adapter when the nose part is disposed within the cavity. The grooved wear member assembly may further include a fastener that can be received in the borehole and the transverse cavity to prevent removal of the wear member from the adapter. The Bra may include a body comprising an axis and a head with a locking flap. The fastener can also include a rotation-resistant element that can include a ring with a polygonal inner surface and an interference feature that extends from an outer surface of the ring. The fastener can also include a cover that can include a contact part with surfaces that look radially outwardly corresponding to the polygonal inner surface. The cover can be arranged for the gear with the head of the body to limit the axial translation of the element resistant to rotation. The rotation resistant element can be elastic in such a way that it resists the rotation of the body in relation to the rotation resistant element between a discrete number of rotational positions.
[0020]
[0021] According to some examples, a fastener may include an elongated shaft having a head at the end. The head may include a locking flap that is extending radially outward from the shaft. The head may include a gear cavity. The fastener may further include a cover having a gear protrusion for insertion into the gear cavity of the cover such that the rotation of the cover causes the corresponding rotation of the head. The cover can also include a contact part that has a plurality of flat surfaces that look radially outward. The fastener may further include a rotation resistant element having flat surfaces facing inwardly that fit with flat surfaces facing outwardly from the contact portion. The rotation resistant element may further include an interference feature. The rotation resistant element may be elastic in a manner that allows but resists rotation of the lid with respect to the rotation resistant element.
[0022]
[0023] According to an example, one method may include inserting an axis of a locking mechanism through aligned holes of a wear member and an adapter, the wear member is arranged for ground gearing and the adapter arranged to ensure the wear member at one edge of the bucket, the shaft includes a locking flap that extends radially outward. The method also includes connecting a cover with a shaft head so that the rotation of the cover produces the corresponding rotation of the shaft, The lid engages through an inner part of a rotation-resistant element, the rotation-resistant element has flat surfaces that face inwardly that fit with flat surfaces that look radially outward from a contact part of the cover, the rotation resistant element also includes an interference feature that extends radially outward. The method further includes rotating the cover and thereby the shaft locking flap between a locked position in which the locking rod is positioned to prevent removal of the locking mechanism and an unblocked position in which the locking wing It allows the removal of the locking mechanism. The rotation between the locked and unblocked positions is resisted by the rotation resistant element.
[0024]
[0025] According to some examples, a wear member assembly for an earth excavator that can be removably mounted on the support structure. The wear member may have a hole formed therein sized differently from the hole of the support structure. The hole of the support structure can be aligned with the hole of the wear member. The wear member may also have an oblique surface that faces the cavity of the wear member. The wear member assembly may also include a rotatable fastener that can be received in the hole of the support structure and in the hole of the wear member in a manner that prevents removal of the wear member from the support surface. The fastener may include a body part and a fixed locking flap that extends radially only partially around a circumference of the body part. The fastener can be received axially in the orifice of the wear member and can be rotated from an unblocked condition where the locking flap is aligned with the orifice of the wear member toward a locked condition where the locking flap is not aligned with the wear member hole. The part of the body of the rotating fastener comprising a distal end formed at an oblique angle where the oblique surface of the wear member cooperates with the distal end of the fastener to axially move the fastener during rotation from the locked condition to the unlocked condition.
[0026] According to some examples, a rotating fastener can be received in a hole of both a support structure and a wear member in a manner that prevents the removal of the wear member from the support structure. The fastener can include a body that has a body part sized to be axially inserted into the hole of the support structure, the body part has a distal end and a proximal end and has a longitudinal axis, the body part has a substantially circular body in the transverse section from the distal end towards the proximal end, the body part has an oblique end surface angled in relation to the longitudinal axis within a range of 20-70 degrees, the end surface is arranged to engage an oblique bottom surface of a perforation in one of the support structures and the wear member. The main body may also include a fixed locking fin that extends radially arranged spirally over the body part and extends only partially around the body part. The fastener can also include a locking retainer that protrudes from one side of the main body in an axially arranged position between the proximal end and the locking flap, the locking retainer is compressible relative to the body from a compressed condition to a condition not compressed
[0027]
[0028] According to some examples, a rotating fastener can be received in a hole of both a support structure and a wear member in a manner that prevents the removal of the wear member from the support structure. The fastener can include a main body that has a part of the body sized to be axially inserted into the hole of the support structure. The body part may have a distal end and a proximal end and has a longitudinal axis. The body part may have a substantially circular body from the distal end to the proximal end. The body part may have a substantially cylindrical first side and an opposite tapered second side. The body part may have a substantially circular cross-section at the distal end. The main body may also include a fixed locking flap that extends radially arranged spirally over the body part and extends only partially around a circumference of the body part. The bra may also include a retainer locking protruding from one side of the main body in an axially arranged position between the proximal end and the locking fin. The locking retainer can be compressed in relation to the body part from a compressed condition to an uncompressed condition.
[0029]
[0030] It should be understood that both the foregoing general description and the following drawings and the detailed description and examples and explanations and it is desired to provide an understanding of the present invention without limiting the scope of the present invention. In this regard, other aspects, features and advantages of the present invention will be apparent to one skilled in the art from the following.
[0031]
[0032] Brief description of the drawings
[0033]
[0034] The accompanying drawings illustrate implementations of the systems, devices and methods disclosed herein and together with the description, serve to explain the principles of the present invention.
[0035]
[0036] Figure 1 is an exploded perspective view of a wear member assembly according to an example of principles described herein.
[0037]
[0038] Figure 2 is a perspective view of a fastener for a wear member assembly according to an example of principles described herein.
[0039]
[0040] Figure 3 is a side view of the fastener according to an example of principles described herein.
[0041]
[0042] Figure 4 illustrates a cross-sectional view of the clamp pin according to an example of principles described herein.
[0043]
[0044] Figure 5 illustrates a cross-sectional view of the wear member assembly according to an example of principles described herein.
[0045] Figure 6 illustrates a perspective view of a wear member according to an example of principles described herein.
[0046]
[0047] Figure 7 illustrates an orifice of the wear member according to an example of principles described herein.
[0048]
[0049] Figure 8 illustrates a more detailed hole of an inner side of the wear member according to an example of principles described herein.
[0050]
[0051] Figure 9A illustrates a fastener in a first stage for securing a wear member to a support structure with a fastener according to an example of described principles.
[0052]
[0053] Figure 9B illustrates a fastener in a second stage for securing a wear member to a support structure with a fastener according to an example of principles described herein.
[0054]
[0055] Figure 9C illustrates a fastener in a final stage of securing a wear member to a support structure with a fastener according to an example of principles described herein.
[0056]
[0057] Figure 10 is a view of a grounded wear member assembly according to an example incorporating principles described herein.
[0058]
[0059] Figure 11 illustrates an exploded view of a pin with a rotation resistant element according to an example incorporating principles described herein.
[0060]
[0061] Figure 12 illustrates a perspective view of the pin with a rotation resistant element according to an example incorporating principles described herein.
[0062]
[0063] Figure 13 illustrates a rotation resistant element according to an example incorporating principles described herein.
[0064] Figure 14 is a view along the axis of the pin placed inside the tooth according to an example incorporating principles described herein.
[0065]
[0066] Figure 15 illustrates a rotation resistant element with external projections according to an example incorporating principles described herein.
[0067]
[0068] Figure 16 is a view along the axis of the pin placed inside the tooth according to an example incorporating principles described herein.
[0069]
[0070] Figures 17A, 17B and 17C are diagrams showing a cross-section of the fastener along the rotation resistant element in different rotational potions according to an example incorporating principles described herein.
[0071]
[0072] Figures 18A and 18B illustrate various cross-sectional views of the pin in an unblocked position in accordance with an example incorporating principles described herein.
[0073]
[0074] Figure 18C is a diagram showing an inside view of the cavity of the wear member according to an example incorporating principles described herein.
[0075]
[0076] Figures 19A, 19B and 19C illustrate various cross-sectional views of the pin in a locked position according to an example incorporating principles described herein.
[0077]
[0078] Figure 20 is a flow chart illustrating a method of inserting a fastener according to an example incorporating principles described herein.
[0079] Figure 21 is a diagram showing a perspective view of a pin with a rotation resistant element having an inner ring and an outer ring according to an example of principles described herein.
[0080]
[0081] Figure 22 is a diagram of an outer ring according to an example of principles described herein.
[0082]
[0083] Figure 23 is a diagram of the inner ring according to an example of principles described herein.
[0084]
[0085] Figures 24 A, 24B and 24C are diagrams showing the rotation of the pin with respect to the rotation resistant element of Figure 21 in accordance with an example of principles described herein.
[0086]
[0087] These Figures will be better understood by referring to the following Detailed Description.
[0088]
[0089] Detailed description
[0090]
[0091] For the purpose of promoting an understanding of the principles of the present invention, reference will now be made to the implementations illustrated in the drawings and a specific language will be used to describe them. However, it will be understood that no limitation of the scope of the invention is desired. All alterations and other modifications of the described devices, systems and methods and all other applications of the principles of the present invention are fully contemplated as would normally occur to a person skilled in the art with which the present invention relates. In addition, the present invention describes in detail some elements or features with respect to one or more implementations or Figures, when those same elements or features appear in subsequent Figures, without said level of detail. It is fully contemplated that the features, components and / or steps described with respect to one or more implementations or Figures may be combined with the features, components and / or steps described with respect to other implementations or Figures of the present invention. For more Simplicity, in some cases the same or similar reference numbers are used in all drawings to refer to equal or similar parts.
[0092]
[0093] The present invention relates to a ground-mounted wear member assembly that includes a support structure, such as a wear member adapter, that can be secured to a bucket edge and other wear member such as a tooth. . The assembly also includes a fastener to hold the tooth on the adapter. The fastener, such as a pin, rotates between an unblocked position in which the pin can be removed from its position within the tooth and a locked position in which the pin is prevented from withdrawing from its position within the tooth. The present invention describes a pin configuration that provides resistance when the pin is rotated between locked and unblocked positions. This resistance provides tactile feedback to the operator.
[0094]
[0095] Figure 1 is an exploded perspective view of a wear member assembly 100. In accordance with the present example, the wear member assembly 100 includes a support structure 102, a wear member 104 as an excavation tooth and a fastener 106. In this implementation, the support structure 102 is representatively a base adapter having a tapered front nose portion 108 with a front end 119. Alternatively, the support structure may be an intermediate or other adapter type of support structure. A connector opening 110 that is sized to receive the fastener 106 extends horizontally through the part of the nose 108 between its opposite vertical sides.
[0096]
[0097] The wear member 104 is a replaceable digging tooth, but it can also be an intermediate adapter or other type of replaceable wear member. A tapered receptacle surface 112 extends forward through a rear end 114 of wear member 104 and, as best illustrated in Figure 6 is configured to complementaryly receive nose portion 108 when wear member 104 telescoping on the nose part 108. With the wear member 104 operatively disposed on the nose part 108, the openings of the pin connector 116 (only one of which is seen in Figure 1) that extend through the opposite outer walls 118 of the wear member 104 on the receptacle surface 112 are aligned with the nose connector opening 110. As also described below, the wear member 104 includes inner side cavities such as a locking flange and / or other features that interconnect with the fastener 106 and cooperate to secure the fastener 106 in place and thereby secure the member of wear 104 to the support structure 102.
[0098]
[0099] Referring now to Figures 2-4, the fastener 106 comprises a main body 126 and a locking retainer 128. The main body 126 is formed as an elongated solid metal cylindrical connector pin having a fixed axial length extending along the central longitudinal axis 130. In this example of implementation, the main body 126 is formed of a single monolithic material. However, in other implementations, different parts of the main body 126 may be formed from opposite materials coupled or otherwise connected together. In some implementations, different parts of the main body 126 can be welded together to form a monolithic structure without moving parts. The main body 126 includes a longitudinally extending body part 132, a radially extending locking flap 134 and a tool gear feature 136.
[0100]
[0101] The body part 132 has a substantially circular cross-section along its length and includes a distal end 142 and a proximal end 144. In this implementation, the distal end 142 is substantially cylindrical and has a circumference perimeter that has substantially the same radio The body part 132 includes a cylindrical part 146 that extends between the distal end 142 and the proximal end 144. In this example, the cylindrical part 146 extends along the side that has the locking fin 134. In addition, the body part 132 includes a slightly tapered part 148 extending between the distal end 142 and the proximal end 144. The slightly insulated part 148 may be disposed on the opposite side of the cylindrical part 146. In some examples, the tapered part 148 is on the opposite side of the locking flap 134. In some examples, the tapered portion 148 may not be directly opposite the locking fin 134.
[0102]
[0103] Each of the cylindrical part 146 and the tapered part 148 has particular purposes. One of the purposes of the cylindrical part 146 is to provide an equal distribution of the loads to the support structure 102 when the fastener 106 is arranged in the connector opening 110 (Figure 1) of the support structure 102. This can be seen in the cross-sectional view of Figure 5, showing a cross-sectional view of the assembled wear member 100. Figure 5 shows the cylindrical part 146 of the fastener 106 that looks and is in close contact with an inner wall 160 of the connector opening 110 of the support structure 102. Because the cylindrical part 146 interconnects and engages with the inner wall 160 (and is arranged to face the leading end 119 of the support structure), which has a shape to match the cylindrical part 146 of the fastener 106, the applied loads are evenly distributed along the load interface 162 corresponding to the interface of the cylindrical part 146 and the inner wall 160. This can extend the life of the support structure 102 by reducing a chance of deformation that can occur over time with evenly distributed loads. In addition, tapered part 148 also has a purpose. Referring still to Figure 5, the tapered part 148 is shown with an increasing separation from a rear part 164 of the inner wall 160. In this implementation, the separation is present due to the tapered part 148, which, in this implementation, it extends from the distal end 142 towards the proximal end 144 of the body part 132. The tapered part 148 forms a side of the conical body part 132. As can be understood from the preceding description, the cylindrical part 146 forms the opposite side of the body part 132. The tapered part 148 provides additional space towards the distal end 142 for a relatively easier insertion and removal of the fastener 106 from the connector opening 110. During use, debris such as dirt or mud can enter any opening or crevice between the components, such as between the fastener 106 and the inner wall 160 of the connector opening 110. This debris can make the removal of the fastener 106 from the connector opening 110 more challenging. Tapered part 148 reduces friction when the fastener 106 is removed from the connector opening 110. In some implementations, the tapered portion 148 is formed at an angle relative to the longitudinal axis 130 in a range of 1-5 degrees. Other angles, both major and minor, are also contemplated. Some fastener implementations are cylindrical along the entire length of the body part 132. Other implementations are conical along the entire length of the body part 132. Other implementations are also contemplated.
[0104]
[0105] The distal end 142 of the body part 132 may include an end surface 170 formed at an oblique angle 171 in relation to the longitudinal axis 130. In some implementations, the end surface 170 is at the angle 171 selected to be within a range of 20 to 70 degrees relative to the longitudinal axis 130. Some implementations have a range of angles of 35 to 55 degrees. Some end surfaces are at a 45 degree angle. As also described below, this angled end surface may cooperate with the wear member 104 to form a release mechanism, characteristic of pushing outward, which contributes to removing the fastener 106 from the support structure 102 and the member wear 104.
[0106]
[0107] The radially extending locking flap 134 is arranged, in the implementation shown, towards the proximal end 144 of the main body 126. The locking flap 134 extends radially from the body portion 132. In some implementations, the locking flap 134 extends substantially from one side of the main body 126.
[0108]
[0109] In the implementation shown, the locking fin 134 has a relatively larger transverse width W (Figure 2) and a relatively smaller axial length L (Figure 1). Other implementations have a locking fin 134 of a different size. Some blocking alterations have substantially a fan shape. Other locking fins have other shapes. The locking flap 134 has a surface facing the distal end 172, a surface facing the proximal end 174, a leading edge 176 and a trailing edge 178. In some implementations, at least one of the surface facing the distal end 172 and the surface facing the proximal end 174 are extends along a plane substantially perpendicular to the longitudinal axis 130. In other implementations, at least one of the surface facing the distal end 172 and the surface facing the proximal end 174 extends at an oblique angle in relation to with a plane substantially perpendicular to the longitudinal axis 130. In such implementations, one or both of the surface facing the distal end and the proximal end 172, 174 of the locking fin 134 may form a spiral around a part of the axis longitudinal 130. In some embodiments, the surface facing the distal axis 172 is formed substantially within a single plane perpendicular to the longitudinal axis 130 and the surface facing the proximal end 174 includes a tapered portion 177 forming an angled plane oblique or a flat surface adjacent to the leading edge 176 and a flat portion 179 parallel to the surface facing the distal end 172 adjacent to the trailing edge 178. In some implementations, a flat third part 181 forms a taper that extends from the flat part 179 towards the trailing edge. The flat part 181 may be configured to dislodge and remove debris when the fastener 106 is rotated to remove it from the wear member 104 and the support structure 102.
[0110]
[0111] The leading edge 176 and the trailing edge 178 can extend substantially in the same direction from the body part 132. For example, they can be relatively parallel to each other. In some examples, less than 10 ° can be diverted from each other. Accordingly, the locking fin can have a relatively rectangular shape. In some implementations, the leading edge 176 and trailing edge 178 are angled relative to each other and can form an angle within a range of 0 to 60 degrees. Accordingly, the locking fin can be fan-shaped. Other angles and shapes are also contemplated. In some implementations, the maximum distance between the leading edge 176 and the trailing edge 178 may be equal to or less than the diameter of the body part 132. In some implementations, the maximum distance between the leading edge 176 and the trailing edge 178 may be greater than the radius of the body part 132, but smaller than the diameter of the body part 132. In some implementations, the maximum distance between the leading edge 176 and the trailing edge 178 may be greater than the diameter of the body body part. In some embodiments, the axial length L or the thickness of the fin of Locking 134 at the leading edge 176 is less than the axial length L or the thickness of the locking flap 134 at the trailing edge 178. In some implementations, the locking flap may have a radial height greater than the radius of the part of the Body. In some implementations, the axial length L or the thickness of the locking flap 134 at the leading edge 176 is greater than the axial length L or the thickness of the locking flap 134 at the trailing edge 178. In some examples, both the surface facing the distal end 172 as the surface facing the proximal end 174 of the locking fin can be substantially parallel to each other. In other words, there may not be a taper of the surface that faces toward the distal end 172.
[0112]
[0113] The gear feature to the tool 136 is disposed at the distal end 142 of the body part 132 and is configured to and arranged to interface with a tool that a user can use to move the fastener 106 from an unblocked condition to a condition blocked up. In the implementation example shown herein, the gear to tool feature 136 is formed as a hex head protruding from one end of the body part 132. Other implementations of the gear feature to the tool may include a cavity or depression formed at one end of the body part 132. The protuberance or cavity may have a hexagonal shape as shown, alternatively it may have a square, star, or other shape that may allow attachment to the tool.
[0114]
[0115] In this implementation, the body part 132 includes a groove 180 sized and arranged to receive the locking retainer 128. The groove 180 may be disposed at the proximal end 144 between the locking flap 134 and the gear feature to the tool 136 Here, the groove 180 is formed radially within a plane substantially perpendicular to the longitudinal axis 130. In some implementations, the groove 180 extends around only a part of the circumference of the body part 132. In other implementations, the groove 180 extends completely around the circumference of the body part 132. Here, as can be seen in Figure 4, the groove 180 extends only around a part of the circumference of the body part 132 to minimize any chance of the locking retainer 128 sliding inadvertently around the circumference of the body part 132. Other spring designs are also contemplated, including elastomeric or polymeric systems. .
[0116]
[0117] The locking retainer 1728 can be transported and supported by the body part 132. The blocking retainer 128 can project radially outwardly from the body part 132 and can contribute to maintaining the fastener 106 in a locked condition and / or not locked as a user wants. In the implementation shown, the lock retainer 128 comprises a C-shaped elastic ring that fits inside the groove 180 and the body part 132. Here, the C-shaped lock retainer 128 includes an overhanging portion 182 formed of a flexible protuberance and a part of the spring 184 formed of a C-shaped elastic ring. In this implementation, the legs fit inside the groove 180 so that they are flush or below an outer surface of the part of the body 132. The protruding part 182 projects radially outwardly beyond the outer surface of the body part 132. When the fastener 106 is rotated between an unblocked condition and a blocked condition, the protruding part 182 can be compressed into radial or elastic shape. When the fastener 106 reaches the unblocked condition and / or the locked condition, the protruding portion 182 can be allowed to bounce radially backward towards its original condition. This can provide a user with a tactile sensation indicating that the fastener 106 is completely within the locked condition or the unblocked condition, while at the same time, can contribute to preventing the inadvertent rotation of the fastener from the locked condition to the non-condition blocked up. This will become more evident in the following discussion.
[0118]
[0119] While the disclosed embodiment employs an elastic ring-style locking retainer, other locking retainers are also contemplated. For example, some seals have a different shape of the C shape. Some extend completely around the body part 132. Other implementations employ an elastomeric projection that extends from the outer surface of the body part 132. When it moves between an unblocked condition and In a blocked condition, the elastomeric projection can be compressed and then expanded when correctly positioned in the blocked or unblocked condition. The elastomeric locking retainer would reduce the possibility of inadvertent rotation during use from the locked condition to the unblocked condition. Other locking seals include seals loaded with a spring. Others are also contemplated.
[0120]
[0121] Figure 6 shows in more detail the wear member 104 which includes the tapered receptacle surface 112 extending through the rear end 114. With reference to both Figure 5 and Figure 6, the wear member 104 includes the openings of pin pin 116 on both opposite sides of the wear member. In the implementation shown, both connector pin openings 116 extend from an outer surface of the outer walls 118 to the receptacle surface 112. In some other implementations, only one connector pin opening 116 extends from the outer surface toward the receptacle surface 112. In such an implementation, the opposite connector pin opening 116 can only be formed on the inner surface of the receptacle area 112. As shown in Figure 5, the connector pin openings 116 are aligned with such that the fastener 106 can be extended and engaged with the connector pin openings 116 on both opposite sides of the wear member 104.
[0122]
[0123] In this implementation, the connector pin openings 116 include a detachment opening 202 and a locking aperture 204. The detachment opening 202 is formed as a counter perforation passage extending from the inner wall 203 of the wear member 104 towards the outer wall 118. Accordingly, the detachment opening 202 includes a part of larger diameter 206 and a part with a smaller diameter 208. The part with a larger diameter 206 is sized to receive the distal end 142 of the fastener 106. A bottom surface 210 of the part with a larger diameter 206 is oblique in relation to an axis through the part with a larger diameter 206 which can also be parallel to the longitudinal axis 130 of the fastener 106 when the fastener 106 is arranged in the pin openings 116. In the implementation shown, the bottom surface 210 is angled to be substantially parallel to the end surface 170 of the fastener 106 when the fastener is in a locked condition, in a form shown in Figure 5. The purpose of the oblique surface to cooperate with the end surface 170 (of the pushing out feature) to eject the fastener during rotation is explained further below. The oblique surface is also oblique to a transverse axis that passes through both connector pin openings 116. This transverse axis can be coaxial with the axis 130 shown in Figure 5.
[0124]
[0125] The part with a smaller diameter 208 extends from the bottom surface 210 to the outer wall 118 of the wear member 104. The passage formed by the part with a smaller diameter 208 can provide access to the holder 106 by a user. This may be useful if, for example, the fastener 106 is housed within the connector opening 110 of the support structure 102 or the connector pin openings 116 of the wear member 104. The passage may allow a user to push the fastener to through the connector opening 110. For example, a user can insert a shaft through the passage for contact with the distal end of the fastener 106 and can touch the end of the shaft to release the fastener 106 from the connector opening 110 and / or the connector pin openings 116. Some implementations also include a tool receiver that allows a user to leverage the fastener from the connector pin opening 116 if necessary. For example, the protuberance, the fin, or other features on the body part can be used to leverage the fastener 106 from the piercing.
[0126]
[0127] The lock opening 204 has a shape to axially receive the fastener 106 therethrough and allow the fastener 106 to rotate from an unblocked condition to a locked condition. As used herein, the unblocked condition is a position that allows the fastener 106 to be removed from the locking opening 204. The locked condition is a position in which the locking flap 134 is disposed behind the wall that separates the receptacle surface 112 from the outer side wall 118. The lock opening 204 accordingly includes a shape that has a larger size than the axial profile of the fastener 106. The lock opening 204 is shown in detail in Figures 7 and 8. Figure 7 shows a perspective view of the outer part of the lock opening 204, while Figure 8 shows a internal part of the lock opening 204. As seen in Figure 7, the lock opening 204 has a central opening part 209 that has a generally bulbous shape, a first region that receives the retainer 211, a second region that receives the retainer 212 and a region that receives the locking flap 214. The first and second regions that receive the retainer 211, 212 extend radially outward from the central opening portion 209. A compression region of retainer 216 formed in the outer wall 118 of wear member 104 separates the first and second regions that receive retainer 211,212. As best seen in Figure 8, the wear member receptacle side 104 includes a wear member lock portion 219 having a rear side that forms a locking flange surface 220. In the implementation shown, the surface of locking flange 220. In the implementation shown, the locking flange surface 220 is recessed under the inner wall 203 of the receptacle surface 112. The locking flange surface 220 extends towards a hard mechanical stop 222. When The fastener 106 is positioned in the locking opening 204, can be rotated so that the locking flap 134 is behind the wear member locking part 219 adjacent to the locking flange surface 220. The hard mechanical stop 222 can prevent over rotation of fastener 106 and consequently can ensure that the cylindrical part of the fastener is correctly aligned with the interface with the int loading port 162 of the connector opening 110 (Figure 5).
[0128]
[0129] Figures 9 A, 9B and 9C illustrate a process for rotating fastener 106 from an unblocked condition to a locked condition according to an implementation example. These Figures show an end view of the fastener 106 and a side view of the wear member 104. Figure 9A illustrates the fastener 106 in an unblocked condition; Figure 9B illustrates the fastener 106 in an intermediate position between the unblocked condition and the locked condition; and Figure 9C illustrates fastener 106 in a locked condition.
[0130] Figure 9A shows the fastener 106 aligned for insertion through the lock opening 204. In this position, the lock flap 134 is aligned with the region that receives the lock flap 214 and the lock retainer 128 is aligned with the first region that receives the seal 211. In this alignment, the fastener 106 extends through the locking opening 204 of the wear member 104, through the connector opening 110 in the support structure 102 and in the opening of detachment 202 on wear member 104. At the same time, the distal end of the fastener can be adjacent to the flat, oblique bottom surface 210 of the detachment opening 202 (Figures 5 and 7). With the fastener 106 arranged in this unblocked condition, a user can engage the gear feature to the tool 136 with a rotation tool, such as a wrench or plug system, for example, to rotate the fastener 106 from the condition. not locked
[0131]
[0132] Figure 9B shows the fastener 106 in the process of being rotated from the unblocked condition to the locked condition. As shown in Figure 9B, the leading edge 176 of the locking fin 134 begins to slide behind the part and locking of wear member 219. At the same time, the locking retainer 128 moves out of the first region which receives the retainer 211 and meshes the structure that forms the compression region of the retainer 216. As such, a user can tactically feel another resistance to rotation when the locking retainer 128 is compressed radially while passing through the compression region of retainer 216. The implementation having a locking flap with a surface facing towards the tapered proximal end 174 can slide against the locking flange surface 220 (Figure 8) that forms a part of the wear member locking part 219. Since the locking flange surface 220 is at an oblique angle, when the locking flap 134 travels along the locking flange surface 220, the fastener 106 is axially further inwards towards the detachment opening 202. The oblique character of the flat bottom surface 210 of the larger diameter portion 216 allows the fastener 106 to move further towards the detachment opening 202. A user continues to rotate the fastener 106 towards the locked condition.
[0133] Figure 9C shows the fastener 106 in the locked condition. In this condition, the fastener is rotated until the locking fin 134 is completely behind the wear member locking part 214. Here, the surface facing the proximal end 174 of the locking fin 134 may be engaged or in position for interconnection with the locking flange surface 220. Also in this condition, the leading edge 176 of the locking flap 134 can be engaged against the hard mechanical stop 222. In this position, the cylindrical part of the fastener 106 can align with the load interface 162 of the support structure 102 (Figure 5). At the same time, in this position, the end surface 170 of the fastener 106 can be substantially aligned with the oblique flat bottom surface 210 of the part with a larger diameter 206 of the detachment opening 202. As can be seen in the Figure 9C, the locking retainer 128 has moved out of the compression region of retainer 216 and towards the second region receiving the retainer 212. Since the locking retainer 128 was compressed, a user can feel tactically the detachment of the retainer lock 128 while moving to the second region receiving the retainer 212. This may indicate to the user that the fastener has reached the locked condition. In addition, lock retainer 128 may prevent inadvertent rotation of fastener 106 back to the unblocked condition. For example, the relatively higher force required to rotate the locking retainer 128 outside the second region that receives the retainer 212 and over the region that compresses the retainer 216 may prevent the fastener from rotating inadvertently or undesirably when digging, digging, pushing or otherwise use the wear member for its desired purposes.
[0134]
[0135] It is important that the wear member assembly 100 is provided with a detachment assist mechanism in the form of the tapered end of the fastener and the oblique bottom surface 210 of the part with a larger diameter 206 of the detachment opening 202. When A user wishes to remove the fastener 106, can rotate the fastener 106 from the locked condition shown in Figure 9C to the unblocked condition shown in Figure 9A. When this occurs, the oblique end of the fastener 106 borders the oblique bottom surface 210 of the part with a larger diameter 206 of the detachment opening 202. These oblique surfaces push the fastener to axially move it towards the locked opening 204. When the fastener 106 moves towards the locked opening 204 and can finally project at least partially out of the locked opening 204, the fastener 106 can be more easily grasped and removed from the wear member 104. Accordingly, rotation in the counterclockwise direction can not only unlock the fastener 106, but can also partially eject the fastener 106.
[0136]
[0137] With the wear member mounted on another structure, such as a bucket, debris such as dirt, mud, clay, etc., can fill the open parts of the locking opening 204. When the fastener must be removed from the wear member 104 , the trailing edge 178 is made the leading edge intended to remove or break the hardened ground material in the locked opening 204. To achieve this, the trailing edge 178 can be formed with a flat surface substantially parallel to the longitudinal axis 130.
[0138]
[0139] In some implementations, the support structure 102 and the fastener 106 are configured such that the fastener 106 does not extend completely through the support structure 102. In these implementations, the support structure 102 may include the bottom surface oblique 210 shown in the detachment opening 202. That is, the support structure may include a perforation on each side aligned with the pin openings 116 of the wear member is on the support structure.
[0140]
[0141] The design of the wear member assembly described herein may provide other advantages that cannot be obtained by prior art systems. The simplicity, reliability and shape achieved by the fastener, the holes in the wear member and the character of the support structure can provide reliability as well as a hammerless, efficient mount of a wear and removal member from a structure. of support.
[0142]
[0143] Figures 10-19C show an implementation of a wear member assembly. Figure 10 is a view of a wear member assembly ground geared in accordance with examples of implementations of the present invention. In the implementation shown, the wear member assembly 1000 includes a tooth (or wear member) 1004, a support structure such as an adapter 1002 and a fastener 1006.
[0144]
[0145] The adapter 1002 includes a longitudinally projecting nose that extends into a posterior cavity of the tooth 1004 (not shown in Figure 10). The nose may include a transverse hole (not shown in Figure 10) formed therein to receive the fastener 1006. In this example of implementation, the tooth 1004 also includes an orifice through which the fastener 1006 can be inserted.
[0146]
[0147] Figure 11 illustrates an exploded view of the fastener 1006. Figure 12 illustrates an assembled view of the fastener 1006. Figure 18 A illustrates an assembled cross-sectional view of the fastener 1006 disposed within other components of the wear assembly 1000. With reference to these figures and according to the present example, the fastener 1006 includes a rigid body 1201 and a cover 1212. The fastener 1006 also includes a rotation resistant element 1210. The cover 1212 is arranged to connect with the main body 1201 of such that the rotation resistant element 1210 is held between the cover 1212 and the main body 1201.
[0148]
[0149] In the present example, the main body 1201 includes an axis 1204 and a head 1206. One end 1203 of the shaft 1204 includes a feature for pushing 1202, or a detachment mechanism and the other end of the shaft 1204 is supported and extended from the head 1206. In the present example, head 1206 and shaft 1204 form a single monolithic component. In some examples, head 1206 may be a separate component that can be connected to shaft 1204 to form a single rigid unit. The shaft 1204 includes an elongated cylindrical part that has a substantially circular cross-section. In some examples, shaft 1204 may taper towards end 1203 to allow easier insertion into the transverse hole in the part of the nose and the hole of the tooth 1104.
[0150] The push out feature 1202 works in concert with the tooth 1104 or the adapter 1102 such that when the shaft 1204 is rotated, the hole in which it is inserted is pushed out. In the implementation shown, the pushing out feature 1202 may be a tapered end. In some implementations, the tapered end is a flat surface at an oblique angle relative to the longitudinal axis of the axis 1204. The tapered end can be engaged against an angled edge within the tooth 1104 or the adapter 1002 as described above. The rotation of the shaft 1204 can cause the tapered end of the pushing out feature 1202 to slide against a corresponding tapered surface on the tooth 1004 or the adapter 1002, pushing the shaft 1204 (and similarly the fastener 1006) to move it axially so that the fastener 1006 can be more easily grasped and removed from the wear member assembly 1000. In the implementation shown, the longitudinal axis 1213 of the axis 1204 is also in the same line with the axis of the fastener 1006.
[0151]
[0152] The other end 1205 of the main body 1201 includes the head 1206. In this implementation, the head 1206 has a cross-sectional diameter larger than the axis 1204. The head 1206 includes a gear cavity 1222 that opens along the direction axial at the proximal end of the shaft 1204. As will be explained in more detail below, the gear cavity has a size and shape to receive a gear protrusion 1220 from the cover 1212. In the example of implementation shown, head 1206 1206 it also includes two pin holes 1207 that are sized and shaped to receive a support pin 1226. In the implementation shown, pin holes 1207 are disposed on opposite sides of the gear cavity 1222 such that the pin Bra 1226 can be positioned in both pin holes 1207 at the same time. After the cover 1212 is inserted into the gear cavity 1222, the support pin 1226 can be inserted into the pin holes 1207 to hold the cover 1212 in place in relation to the main body 1201. While the implementation shown includes a single support pin 1226, other implementations use several support pins. Still others use mechanical mount bras that are not support pins. For example, some implementations use adhesives, epoxies, welding, threads, other gear characteristics to secure the cover 1212 to the main body 1201.
[0153]
[0154] In this implementation example, the head 1206 also includes a radially extending locking flap 1224. The locking fin 1224 helps secure the fastener 1006 instead of securing the tooth 1004 in the adapter 1002. For example, when the fastener 1006 is rotated to the locked position, the locking fin 1224 rests behind a surface of the tooth 1004 or of the adapter 1002 in such a way as to prevent the removal of the fastener 1006 from the tooth 1004 or the adapter 1002. Similarly, when the fastener 1006 is in an unblocked position, the locking flap 1224 is positioned such that it fits through a cavity or opening within the tooth 1004 or the adapter 1002, thereby allowing the removal of the fastener 1006. Yes either the locking flap 1224 is disclosed projecting from the head 1206 of the main body 1201, in other implementations, the locking flap is arranged on the cover 1212 or from the ex and 1204. In some implementations, the locking fin 1224 includes axially displaced surfaces 1225a, 1225b that are within parallel planes. In some implementations, one or both surfaces 1225a, 1225b are angled to be within planes that are oblique to the longitudinal axis 1213. In some embodiments, these surfaces may be similar to the surfaces that face the distal end and the surface that looks towards the near end 174 described with reference to Figures 2-8 and 9A-9C. The blocking fin 1224 may be inclined or have a size similar to the blocking fin 134 described herein.
[0155]
[0156] The cover 1212 includes a gear boss 1220, a contact part 1218 and a head 1219. The gear boss 120 protruding axially from the contact part 1218 and has a size and shape to fit within the gear cavity 1222 , as shown in Figures 11 and 18A. In the present example, the gear protrusion 1220 has a cross-section with a substantially square shape. Therefore, the gear cavity 1222 also has a substantially square shape. Accordingly, in the implementation shown, the gear cavity 1222 and the gear protrusion 1220 have substantially the same cutting shape. cross. Although it is shown in a substantially square shape, other profiles or shapes can be used. In some implementations, the cross-sectional shape of the gear cavity 1222 and the gear boss 1220 are formed as rectangular, triangular or other polygonal shapes. Other forms of cross-section are still contemplated. Due to the same shapes or surfaces, the cover 1212 and the main body 1201 can be rotationally fixed to each other. Some implementations are not based on equal shapes or surfaces, but instead rely on the support pin 1226 or other support structure to rotationally fix the cover 1212 and the main body 1201. As can be seen, the gear protrusion 1220 of this implementation also includes a through hole 1217. When the gear protrusion 1220 is fully inserted into the gear cavity 1222, the through hole 1217 aligns with the pin holes 1207 so that the support pin 1226 can be inserted all the way through them in such a way as to hold the cover 1212 on the main body 1201. Other mechanisms are also contemplated to secure the cover 1212 to the main body 1201 such that the rotation of the cover 1212 causes the corresponding rotation of the main body 1201.
[0157]
[0158] In the present example, the contact part 1218 is a non-circular circumference profile that forms an outer surface of a part of the cover 1212 and is positioned adjacent to the gear protrusion 1220. The contact part 1218 has a size and a form to be received by the rotation resistant element 1210. In this implementation, the contact part 1218 includes a plurality of substantially flat surfaces that look radially outward. These flat surfaces are separated by edges or corners 1229 and are designed to rest flat against the inner surfaces of the rotation resistant element 1210 when the fastener is in the locked or unblocked position. Although they are described as flat surfaces, the surfaces may have concave or convex parts separated by the edges or corners 1229.
[0159]
[0160] The head 1219 of the cover 1212 may have a diameter that is similar or substantially the same as that of the head 1206 of the main body 1201.
[0161] The head 1219 limits or prevents axial translation of the rotation resistant element 1210 while the cover 1212 is connected to the body 1201. That is, the body 1219 secures the rotation resistant element 1210 in its axially place, although the head 1219 and the full cover 1212 can be selectively rotated in relation to the rotation resistant element 1210. The head 1219 also includes a tool connection feature shown as a hole 1216 that can be used to rotate the fastener 1106. In the In this example, hole 1216 has a hexagonal shape and is aligned with the longitudinal axis. Therefore, a hexagonal shaped tool can be inserted in the hole 1216 and used to rotate the fastener 1106 in relation to the rest of the wear assembly 1100. In some examples, a plug 1214 can be inserted into the hole 1216 during normal operation of the wear member to prevent the accumulation of debris, such as soil, within the hole 1216. The plug 1214 may be a rubber or polymeric plug that can be removed to provide access to the hole 1216. In some examples, it may be a cut 1215 on one of the hexagonal sides of the hole 1216 that allows a tool, such as a screwdriver, to slide inside and remove the plug 1214. In addition, the cut 1215 can provide a tool for the tool to remove dirt and waste from hole 1216 in case plug 1214 is not used.
[0162]
[0163] The rotation-resistant element 1210, sometimes referred to as a locking retainer or spring clamp, is designed to resist unwanted or unintended rotation of the cover 1212 and the main body 1201 and to allow the desired or intentional rotational movement of the cover 1212 and the main body 1201. The rotation resistant element 1210 may be similar to the spring part 184 described above. In accordance with the present example, the rotation resistant element 1210 includes an internal contact characteristic 1211 and an interference characteristic 1209. The internal contact characteristic 1211 includes a plurality of inward-facing flat surfaces that are configured to engage. to the surfaces facing outwardly of the contact part 1218 of the cover 1212 such that the flat surfaces of the contact part 1218 rotatably fit against the flat surfaces of the internal contact feature 1211. The element 1210 rotation resistant can be formed of an elastic material that it has elastic characteristics such that the desired or intentional rotation of the cover 1212 and the main body is allowed but that unwanted or unintentional rotation is resisted. Specifically, the rotation of the cover 1212 and the main body 1201 in relation to the rotation resistant element 1210 between a locked position and an unblocked position produces the expansion, such as radial expansion, of the rotation resistant element 1210. The rotation of the cover 1212 in relation to the rotation resistant element 1210 pushes the rotation resistant element 1210 outwards. The tame and elastic character of the rotation resistant element 1210 provides resistance to this outward movement and therefore provides resistance to the rotation of the fastener 1006 between the locked and unblocked positions. This provides tactile feedback to the user when the bra rotates between an unblocked position and a mouthful position. As such, when a user rotates the cover 1212 and the main body 1201 in relation to the rotation resistant element 1210, the rotation resistance increases for a first part of the rotation and then is reduced for a second part of the rotation , providing tactile feedback to the user. Because the resistance to rotation increases during rotation, the tendency of inadvertent rotation can be minimized or prevented.
[0164]
[0165] In the present example, interference feature 1209 is formed as a single protuberance that is designed to fit within a cavity or groove (not shown) of tooth 1004 or adapter 1002. The cavity provides mechanical interference that prevents rotation of the interference characteristic 1209 of the rotation resistant element 1210 in relation to the tooth 1004 or the adapter 1002. Accordingly, when the fastener 1006 is rotated in relation to the tooth 1004 or the adapter 1002, the rotation resistant element 1210 it is not.
[0166]
[0167] Figure 12 illustrates a perspective view of the fastener 1006 with a rotation resistant element 1210. The cover 1212 is secured to the 2006 head of the shaft 1204. In addition, the rotation resistant element 1210 fits over the contact part 1218 and is secured in place by the cover 1212 and is prevented from being removed without removing the cover 1212.
[0168] In some examples, the rotation resistant element 1210 can be formed with a single monolithic component as shown or described in Figures 11-15. In some examples, however, the rotation resistant element 1210 may include more than one component as shown and described with reference to Figures 21-24C. For example, the rotation resistant element 1210 may include a diverting member and a separate piece of ring (not shown) that fits with the diverting member. In said example, the diverting member may form some of the surfaces of the inner contact feature 1211 while the ring piece may form some of the other inner surfaces of the inner contact feature 1211, or alternatively the diverting member may form all surfaces of the inner contact feature 1211.
[0169]
[0170] In some implementations, the rotation resistant element 1210 includes a position indicator 1221. The position indicator 1221 is a fixed feature that can be used for reference to identify the relative rotational position of the cover 1212. In the implementation shown , the position indicator 1221 is a depression formed on a surface of the rotation resistant element 1210. A paint or marker of a bright color can be applied such that the position indicator 1221 is easy to identify for an operator . As can be seen in Figure 12, the cover 1212 may also include indicators 1223. In the example shown, the indicators of position 1223 are shown as an open padlock and a closed padlock. In some implementations, the 1223 position indicators are simply lines, points, depressions, or other indicator. In some implementations, these can be painted or colored to be easily visible to an operator. Some implementations do not include position indicators.
[0171]
[0172] Figure 13 illustrates a diverting member 1300 that forms all or part of the examples of rotation resistant elements 1210. In the present example, the diverting member 1300 is a C-shaped member. The diverting member 1300 includes two flexible arms 1302a, 1302b and interference feature 1209. Arm 1302a includes an upper surface facing inwardly 1304a and arm 1302b includes a lower surface facing upwardly 1304b.
[0173] In this implementation, surfaces 1304a, 1304b are substantially flat. When mounted with the cover 1212, the surfaces 1304a, 1304b can be adjusted against the substantially flat surfaces of the contact part 1218 (Figure 2A). In the present example, the diverting member 1300 includes a single solid protrusion 1306 forming the interference characteristic 1209.
[0174]
[0175] In some examples, the diverting member 1300 can be made of an elastic material such as a plastic or polymer. In some examples, the diverting member 1300 may be made of a metallic material that has sufficient flexibility. The elasticity allows the arms 1302a, 1302b to flex flexibly and separate when a rotational force is applied to the cover 1212 and therefore the contact part 1218. When the cover 1212 and the main body 1201 are in the locked or not locked, then the flat surfaces 1304a, 1304b are supported or disposed adjacent to the flat surfaces of the contact part 1218, providing a deflection force against inadvertent rotation between the locked and unblocked position. However, when the contact part is rotating, the elastic arms 1302a, 1302b can flex outwards, allowing the deflection force to be exceeded and allowing rotation between the locked and unblocked positions. Therefore, the arms provide resistance to said rotational movement between the locked and unblocked positions.
[0176]
[0177] Figure 14 shows the fastener 1006 disposed within a hole or hole 1402 on one side of the tooth 1004. The head 1219 of the cover 1212 is visible while the main body 1201 is disposed inside and through the hole 1402. As it can be seen, the interference characteristic 1209 of the rotation resistant element 1210 is adjusted within a cavity 1406 within the tooth 1004. In addition, the blocking fin 1224 is adjusted within a blocking fin that receives the opening or an extension 1404 of hole 1402. Figure 14 shows the fastener 1006 in the unblocked position with the locking adjustment 1224 aligned within the extension 1404. With the locking flap 1224 aligned as shown, the fastener 1106 can be axially displaced and removed from the hole 1402 on the side of the tooth 1004. The locked and unblocked positions are also described below.
[0178] Figure 15 illustrates another example of the diverting member for use with or as the rotation resistant element, which has the reference number 1500. In a manner similar to the diverting member 1300 discussed herein, the diverting member 1500 it includes two arms 1502a, 1502b each of which has an inner surface 1504a, 1504b that is designed for the contact part of the contact part 1218 of the cover 1212. The deflection member 1500 also defines an interference feature 1506 that includes two bumps 1508a, 1508b. the bumps 1508a, 1508b provide interference with the adapter 1002 or the tooth 1004 in such a way as to resist rotation of the deflection member, even when the cover 1212 rotates.
[0179]
[0180] Figure 16 shows the fastener 1006 disposed within the borehole or the hole 1402 of one side of the tooth 1004. As can be seen, the protuberances 1508a, 1508b of the rotation resistant element fit into a cavity 1406 within the tooth 1004 The locking flap 1224 fits inside the opening or extension of the locking flap 1404. The fastener 1006 is shown in the unlocked position and the description of Figure 14 is also applicable here.
[0181]
[0182] Figures 17A-17C show a cross-section of the contact part 1218 in different positions with respect to the internal contact characteristic 1211. Each of Figures 17A and 17C illustrates the fastener 1006 in one of the locked and unblocked positions. For purposes of explanation only, Figure 17A is treated as the unblocked position and Figure 17C is called the locked position. Figure 17B shows the midway rotation between the locked and unblocked positions. With reference to Figure 17A in the unblocked position, the locking flap 1224 is positioned such that it allows the fastener to be removed from the wear member 1004 (not shown). In this position, an outer surface 1701 of the contact portion 1218 rests against an inner surface 1702 of the inner contact feature 1211. An outer surface 1703 of the contact portion 1218 faces the interference feature 1209. An outer surface 1705 of the contact part 1218 rests against an inner surface 1706 of the characteristic of inner contact 1211. An outer surface 1707 of the contact part faces in the opposite direction to the interference characteristic 1209.
[0183]
[0184] Figure 17B illustrates the fastener approximately midway between the unblocked position (shown in Figure 17A) and the locked position (shown in Figure 17C). In this position, the outer surface 1701 has moved outside the inner surface 1702. The outer surface 1703 has moved towards the inner surface 1706. The outer surface 1705 has moved outside the inner surface 1706. The outer surface 1707 has has moved towards the inner surface 1702. This places a force outwardly on the diverting member 1300. In some examples, the force outwardly pushes the two flexible arms 1302a, 1302b of the diverting member 1300 outward. In some examples, the outward force compresses the material that forms the arms 1302a, 1302b while the arms remain substantially stationary. In both cases, the rotation between the locked position and the unblocked position is resisted, thereby providing tactile feedback to an operator.
[0185]
[0186] Figure 17C illustrates the fastener in the locked position. Therefore, the locking flap is positioned in such a way as to prevent the removal of the wear member holder 1004 (not shown). After rotation towards the locked position, the outer surface 1701 now faces the interference characteristic 1209. The outer surface 1703 now rests against the inner surface 1706. The outer surface 1705 now looks in the direction opposite to the interference characteristic 1209. The outer surface 1707 now rests against the inner surface 1702.
[0187]
[0188] While Figures 17A-17C illustrate only two discrete positions (locked and unblocked), it is understood that other implementations may include more discrete positions. For example, in the present example, there are four flat surfaces in both the internal contact feature 1211 and the contact part 1218. Therefore, there may be four discrete positions. In some examples, the contact part 1218 and the inner feature 1211 may have a different number of flat surfaces and allow a number Different from discrete positions. For example, there may be three flat surfaces with a triangular shape, then allowing three discrete positions. Alternatively, there may be five flat surfaces, thus allowing five discrete positions. In such cases, the rotation-resistant element resists rotation between the positions and therefore a tactile feedback is provided to the user who is rotating the fastener 1006. In addition, for purposes of illustration, the rotational distance between the locked positions and Unlocked is 90 °. However, other implementations can be arranged to provide any rotational distance between the locked and unblocked positions according to the configuration of the contact part 1218 and the interior features 1211.
[0189]
[0190] As illustrated, the rotation resistant element 1210 remains in place while the contact part 1218 of the cover 1212 rotates. In other words, the interior surfaces 1702, 1706 remain in place while the exterior surfaces 1701, 1703, 1705, 1707 rotate.
[0191]
[0192] Figures 18A and 18B illustrate various cross-sectional views of fastener 1006 in an unblocked position. Figure 18A illustrates a cross-sectional view along longitudinal axis 1804 of fastener 1806. In accordance with the present example, fastener 1006 is shown inserted in wear member 1004 and adapter 1002, thereby preventing removal of the wear member 1004 from the adapter 1002. Specifically, the elongate main body 1201 extends through the adapter 1002 and extends into a cavity 1802 formed within an inner surface 1801 on the far side of the wear member 1004. The cavity 1802 includes a shape of the tapered surface that faces inwardly 1803 to cooperate with the push-out feature 1202 of the fastener 1006. In this implementation, the locking fin 1224 is shown extended outwardly from the main body 1201, although other implementations have the locking fin 1224 that extends outwardly from the cover 1212. While it is not quite clear from the perspective of Figure 18A, the locking flap is in a position to allow the removal of the fastener 1006. Figure 18A also illustrates the fastener fully assembled with the cover 1212 secured to the main body 1201 with the rotation resistant element 1210 between them.
[0193]
[0194] Figure 18B illustrates a diagonal cross section along the locking flap 1224. As illustrated, the locking flap 1224 is positioned such that it aligns with the extension of the hole 1404, thus allowing the removal of the fastener 1006 In addition, interference feature 1209 is shown positioned within cavity 1406.
[0195]
[0196] Figure 18C is a diagram showing a view from inside the cavity of wear member 1004. This view shows hole 1402 through which the locking pin can be inserted. When the locking pin 1006 is first inserted, the locking flap 1224 fits inside the receptacle 1812. When the locking pin 1006 is rotated from the unblocked position to the locked position, the outer edge of the locking flap 1224 moves along the adjacent surface 1818. In addition, the surface facing the proximal end 1225 a (shown in Figure 12) of the locking fin 1224 rests against the inclined surface 1816. The inclined surface 1816 by therefore it acts as a characteristic of pushing in because when the locking fin is rotated, the inclined surface pushes the locking pin 1006 along the axial direction further towards the hole 1402. In some implementations, the inclined surface 1816 is A relatively flat ramp. Accordingly, there is a linear relationship between the rotation and the axial displacement of the locking pin 1006 in the hole. In other implementations, the inclined surface 1816 has a relatively smooth curvature. Therefore, there is a non-linear relationship between the rotation and an axial displacement of the locking pin 1006 in the hole. In still other embodiments, the inclined surface 1816 has a plurality of surfaces that can form a stepped relationship. For example, Figure 18C shows surface 1816 that is formed of a plurality of levels or stages. In the example shown, the surface 1816 includes three stages, shown as a flat 1816a, a ramp 1816b and another flat 1816c. When the locking pin 1006 rotates, the locking flap slides on the plane 1816a with the axial displacement of the locking pin 1006. Then it slides on the ramp 1816b causing a more axial displacement. of the locking pin 1006, thereby pushing into the locking pin 1006. Then it slides on the plane 1816c which must be secured in the locked position. Other provisions are also contemplated.
[0197]
[0198] Figures 19A, 19B, 19C illustrate various cross-sectional views of fastener 1006 in a locked position. In accordance with the implementation shown herein, fastener 1006 accordingly rotates 90 ° from the position shown in Figures 18A and 18B. In the locked position, the fastener 1006 is advanced in the holes 1404 in the wear member 1004 and the adapter 1002. As can be seen, the outward thrust characteristic 1202 of the shaft 1204 that is part of the main body 1201 is adjusted adjacent to the tapered surface facing inward 1803 in the wear member 1004. In some implementations, the fastener 1006 can be extended only partially in the adapter 1002. In said implementation, the tapered surface 1803 can be formed as a part of the adapter 1002. When the fastener 1006 rotates, the outwardly pushing feature 1202 engages the tapered surface 1803 and the new rotation pushes the fastener 1006 to move axially from the position shown in Figure 19B to the position shown in Figure 18.
[0199]
[0200] Figure 19A is a view through the axis of the fastener 1006 placed inside the borehole or hole 1402 on one side of the tooth 1004 and in the unblocked position. As can be seen, the interference characteristic 1209 of the rotation resistant element is adjusted within a cavity 1406 within the tooth 1004. In addition, the locking flap is rotated to be positioned behind an inner surface of the wear member 1004.
[0201]
[0202] Figure 19B illustrates a cross-section of the fastener 1006 along the longitudinal axis 1804. While the axis has been rotated so that the locking flap 1224 is in a different position, the rotation resistant element 1210 and its characteristic of Interference 1209 remains substantially within the same position within the cavity 1406. In other words, the main body 1201 and the cover 1212 have been rotated while the rotation resistant element 1210 remains substantially in place.
[0203] Figure 19C illustrates a diagonal cross section along the locking flap 1224. As illustrated, the locking flap 1224 rests behind an inner surface 1902 (also identified as an inclined surface 1816 in Figure 18C) of the member wear 1004. Therefore, the fastener 1006 is prevented from being removed.
[0204]
[0205] Figure 20 is a flowchart showing an illustrative method for inserting a fastener having a rotation resistant element 1210 as described herein, in accordance with an implementation example. In the present example, the method 2000 includes, in 2002, inserting a shaft of a fastener through aligned holes of a first wear member and a second wear member. In some implementations, the secured wear member is an intermediate adapter or adapter such as adapter 1002.
[0206]
[0207] In 2004, the 2000 method also includes gearing the gear feature to the tool by inserting a tool into a hole that receives the tool into the fastener. The tool receiving hole may have a polygonal shape such as a hexagonal shape. Therefore, the tool can have a part with a similar shape to engage the hole the tool receives.
[0208]
[0209] Method 2000 also includes, while preventing rotation of the spring clamp in relation to the first wear member, rotating the main body and the fastener cover from the unblocked position to the locked position. While this occurs, the edges of the flat surfaces facing inwardly that fit with the flat surfaces facing radially outward of the contact part, flex, compress or move arms of the rotation resistant element.
[0210]
[0211] Fig. 21 is a diagram showing a perspective view of a pin 1006 with a multi-component rotation resistant element 2102 having an inner ring 2106 and an outer ring 2104. The rotation resistant element 2102 works in conjunction with the main body 1201 and the cover 1212 in similar to the rotation resistant element 1210 described above. Specifically, the main body 1201 and the cover 1212 rotate together with respect to the rotation resistant element 2102. The components of the main body 1201 and the cover 1212 illustrated in Figure 21 are similar to those illustrated in Figure 11 and are not repeated here.
[0212]
[0213] The outer ring 2104 of the rotation resistant element 2102 includes an inward facing surface 2112 having a size and shape to fit against an outward facing surface 2114 of the inner ring 2106. The outer ring 2104 includes a feature of interference 2108 which may include one or more protuberances that are designed to fit within a cavity or groove (not shown) in tooth 1004 or adapter 1002. In the present example, interference feature 2108 includes two protuberances 2110. However, in some examples, there may be a single protuberance such as the protuberance shown in Figure 13. In some examples, the outer ring 2104 may be made of a rigid material such as a metal, a compound or other material. Figure 22 shows a closer view of the outer ring 2104.
[0214]
[0215] The inner ring 2106 has a size and shape to fit inside the outer ring 2104. Specifically, the outside facing surface 2114 of the inner ring 2106 is designed to fit against the inner looking surface 2112 of the outer ring 2104. The inner ring 2106 includes an ear part 2113 with a shape such that the outer surface 2114 is not circular. This prevents the rotational movement of the inner ring 2106 with respect to the outer ring 2106. The inwardly facing surface 2112 of the outer ring 2104 also includes a corresponding non-circular shape. In some implementations, inner ring 2106 is secured within outer ring 2104 using an adhesive such as an epoxy, a weld, or other adhesive. In some examples, the inner ring 2106 may not have an ear part 2113 and instead may be rotatable within the outer ring 2104. In said example, the outer ring 2104 may have an inner surface with a polygonal shape such that a inner ring with a similar polygonal surface can rotate between discrete positions inside the outer ring 2104.
[0216] The inner ring 2106 includes a group of surfaces facing inward 2116. In the present example, the inner ring 2106 includes four substantially flat surfaces facing inward 2116a, 2116b, 2116c, 2116d, which are shown in more detail in the Figures 24A-24C. The inwardly facing surfaces 2116a, 2116b, 2116c, 2116d have a size and shape to fit against the outwardly facing surfaces of the contact part 1218 on the cover 1212. The inner ring 2106 may be made of a elastic material so that it can be compressed by rotating the contact part 1218 of the cover 1212. For example, the inner ring 2106 can be made of rubber, polyurethane, high density polyethylene, polyoxymethylene, molten nylon and other materials properly elastic. Figure 23 shows a closer view of the inner ring.
[0217]
[0218] Figures 24A, 24B and 24C are diagrams showing the rotation of the pin with respect to the rotation resistant element of Figure 21. Figure 24A shows the pin in an unblocked position. In said position, four inwardly facing surfaces 2116a, 2216b, 2116c, 2116d of the inner ring 2106 fit against the four flat surfaces facing outwardly 1218a, 1218b, 1218c, 1218d of the contact part 1218. Specifically, surface 2116a rests against surface 1218a. Surface 2116b rests against surface 1218b. Surface 2116c rests against surface 1218c. Surface 2116d rests against surface 1218d.
[0219]
[0220] Figure 24B shows the locking fin 1224 rotating between the unblocked position and the locked position. When the main body 1201 is rotated, the contact part 1218 is rotated with respect to the rotation resistant element 2102. Specifically, as described above, the interference feature 2108 rests within a groove or cavity within the tooth 1004 or of the adapter 1002, which prevents the rotation-resistant element 2102 from rotating with the main body 1201. The rotation of the contact part 1218 with respect to the inner ring 2106 causes compression of the parts of the inner ring 2106. Specifically, the parts rounded between flat surfaces facing outward 1218a, 1218b, 1218c, 1218d are pressed against the surface ies p wool that look inward 2116a, 2216b, 2116c, 2116d. Therefore, as seen in Figure 24B, the primary primary feature of the inner ring 2106 allows, but resists the rotation of the contact part 1218 with respect to the rotationally resistant element. 2102
[0221]
[0222] As shown in Figure 24C, the pin is in a locked position. In this position, the surface ie 2116a leans against the surface ie 1218 d. The surface ie 2116b leans against the surface ie 1218a. The surface ie 2116c rests with the surface ie 1218b. The surface ie 2116d leans against the surface ie 1218c.
[0223]
[0224] Those skilled in the art will appreciate that the implications covered by the present invention are not limited to the examples of particular taxes described above. In this regard, although illustrative implications have been shown and described, a wide range of modifications, changes, combinations and substitutions are contemplated in the preceding invention. It is understood that such variations can be made as above without departing from the scope of the present invention. Accordingly, it is appropriate that the ad iv indications together be interpreted broadly and in a manner consistent with the present invention.

权利要求:
Claims (18)
[1]
1 A locking mechanism for attaching a first wear member to a second wear member, comprising:
a rigid body shaped and arranged to prevent the removal of a first wear member from a second wear member, the rigid body having a head portion that forms an end of the locking mechanism, the rigid body having a dimensioned and shaped external surface to come into contact with the first wear member and the second wear member;
a contact portion in the rigid body, the contact portion having a plurality of surfaces oriented radially outward;
a locking flap that extends radially outward from one of the rigid bodies and the contact portion to engage one of the first and second wear members and selectively inhibit the axial displacement of the locking mechanism; Y
a rotation resistant element arranged at least partially around the rigid body, the rotation resistant element having a plurality of inwardly oriented surfaces that fit with the surfaces oriented radially outward of the contact portion, further including the element resistant to The rotation is an interference characteristic that extends radially outwardly, the rotation-resistant element being elastically offset and arranged to selectively resist rotation of the contact portion with respect to the rotation-resistant element.
[2]
2. - The locking mechanism of claim 1, characterized in that the rigid body comprises a main body and a cover that is coupled to the main body.
[3]
3.
[4]
4. - The locking mechanism of claim 1, characterized in that The rotation resistant element further comprises an outer ring and an inner ring embedded within the outer ring.
[5]
5.
[6]
6.
[7]
7.
[8]
8. - The locking mechanism of claim 1, characterized in that the interference feature comprises a single projection.
[9]
9.
[10]
10.
[11]
eleven.
[12]
12. - The locking mechanism of claim 1, which also It comprises a lid, the contact portion comprising a portion of the lid, characterized in that the lid also includes a tool receiving hole for receiving a tool for rotating the locking mechanism between a locked position and an unlocked position, the receiving hole having of tools a cut on one side of the tool receiving hole.
[13]
13.
[14]
14. - The locking mechanism of claim 13, characterized by that one of the main body and the cover includes a coupling cavity and the other of the main body and the cover includes a coupling protrusion that can be inserted into the coupling cavity to connect the main body and the cover.
[15]
fifteen.
[16]
16.
[17]
17. - The locking mechanism of claim 13, characterized in that the interference feature comprises two projections that extend radially outward.
[18]
18. - A fastener for joining a wear member in contact with the ground having an opening extending through a side wall to a support structure comprising a longitudinally projected nose portion with a transverse hole formed through the nose portion, which comprises:
a main body having an external surface sized and shaped to come into contact with the support structure;
a rotation resistant element comprising an internal non-circular surface and an interference feature extending outwardly; Y
a contact portion with surfaces oriented radially outwardly that interfere slidingly with the internal non-circular surface of the rotation resistant element;
characterized in that the rotation resistant element is arranged to resist rotation of the body and the contact portion with respect to the rotation resistant element between a discrete number of positions of rotation, and characterized in that the fixation can be received in the opening and the transverse hole to prevent the removal of the wear member from the support structure.

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同族专利:

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公开号 | 公开日

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ES2734910R1|2019-12-26|

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ES2734910B2|2020-04-30|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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CA2219036C|1997-11-13|2001-09-04|Quality Steel Foundries Ltd.|Coupling device for locking an excavation tooth onto an adaptor|

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ES2358627T3|2002-09-19|2011-05-12|Esco Corporation|WEAR SET AND LOCK SYSTEM FOR EXCAVATOR SHOVEL.|

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US20080209772A1|2007-03-02|2008-09-04|Kan Cui|Connector pin assembly|

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CA3030915C|2010-12-07|2021-03-30|Talon Engineering Sdn Bhd|Connection assembly|

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WO2013033751A1|2011-09-08|2013-03-14|Cqms Pty Ltd|A lock assembly for an excavator wear member|

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US9228325B2|2013-06-18|2016-01-05|Caterpillar Inc.|Tool retention system|

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法律状态:
2019-12-12| BA2A| Patent application published|Ref document number: 2734910 Country of ref document: ES Kind code of ref document: A2 Effective date: 20191212 |

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2020-04-30| FG2A| Definitive protection|Ref document number: 2734910 Country of ref document: ES Kind code of ref document: B2 Effective date: 20200430 |

优先权:

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申请号 | 申请日 | 专利标题

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ES201931053A|ES2734910B2|2017-05-11|2017-05-11|CONNECTOR SYSTEMS IN EARTH GEARED WEAR MEMBER ASSEMBLIES|ES201931053A| ES2734910B2|2017-05-11|2017-05-11|CONNECTOR SYSTEMS IN EARTH GEARED WEAR MEMBER ASSEMBLIES|