• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    DRIVING COUPLER TO COUPLY AN ALTERNATIVE MOVING KNIFE TO AN DRIVING MEMBER. A drive coupler (102, 104) for coupling an reciprocating knife (106) to a driving member (112, 114) is provided, wherein the reciprocating knife (106) includes at least one elongated bar (120 , 122, 180, 182) having a longitudinal extension and fixed to a plurality of blades (138), in which at least one elongated bar (120, 122, 180, 182) is supported on support members (140) which restrain at least one elongated bar (120, 122, 180, 182) to alternatively move in a direction generally parallel to the longitudinal extent of at least one elongated bar (120, 122, 180, 182), the drive coupler (102, 104) comprising a first elongated strip (146) configured to be attached to at least one elongated bar (120, 122, 180, 182); a second elongated strip (162) configured to be attached to at least one elongated bar (120, 122, 180, 182); and a device (152, 164, 187, 189, 193, 200) for (i) flexing the first elongated strip (146) with respect to the second elongated strip (162), (ii) for flexing the first elongated strip (146) with respect to the driving member (112, 114), and (iii) to flex the second elongated strip (162) with respect to the driving member (112, 114).
    公开号:BR102014016121B1
    申请号:R102014016121-0
    申请日:2014-06-27
    公开日:2020-11-10
    发明作者:Aaron S. Ritter；Austin Hughes
    申请人:Deere & Company；
    IPC主号:
    专利说明:

    Field
    [0001] This invention relates to agricultural harvesting equipment. More particularly, it refers to alternative knives. Even more particularly, it refers to couplings for alternative knives. Foundations
    [0002] Agricultural harvesting machines, such as brushcutter platforms, include an reciprocating knife arranged on the front edge of the harvesting machine. These alternative knives are formed from an elongated bar, to which many small knife blades are attached. The elongated bar is driven back and forth, in a direction parallel to the longitudinal extension of the reciprocating knife. The reciprocating knife also includes knife guards that generally extend back and forth (i.e., a direction perpendicular to the longitudinal extension of the elongated bar). The knife guards serve as stationary guides that divide the crop every few inches. Knife guards also have knife edges that extend back and forth, against which the edges of small knife blades.
    [0003] Drive mechanisms for a variety of constructions are coupled to the elongated bar and drive the elongated bar back and forth. This causes the small knife blades to slide back and forth with respect to the knife guards and separate the crop plants that are caught between the small knife blades and the knife guards.
    [0004] At the same time that the alternative knives were growing in length, the alternative knives were designed to flex up and down following the contours of the soil over which they move. This allows the alternative knives to more closely follow the contours of the soil over which they move. In order to have a flexible reciprocating knife, the elongated bar cannot be increased in its cross-sectional dimensions, since any increase in cross-sectional dimensions would make the elongated bar more rigid and less capable of flexing. For the now heavier alternative knives of modern designs, the couplings that are attached to the elongated bar and actuate it are produced longer and longer. This causes stresses on the elongated bar, which cause the elongated bar to break.
    [0005] It is an objective of this invention to provide a drive coupler for a reciprocating knife on an agricultural harvesting machine, which reduces the stresses on the elongated reciprocating knife and which reduces the likelihood that it will present fatigue under alternative loads and break up. summary
    [0006] According to one aspect of the invention, a drive coupler for coupling an reciprocating knife to a driving member is provided, wherein the reciprocating knife includes at least one elongated bar having a longitudinal extension and fixed to a plurality of blades, wherein the at least one elongated bar is supported on support members that restrict at least one elongated bar to move alternatively in a direction generally parallel to the longitudinal extension of the at least one elongated bar, the drive coupler comprising: a first elongated strip configured to be attached to at least one elongated bar; a second elongated strip configured to be attached to at least one elongated bar; and a device for (i) flexing the first elongated strip with respect to the second elongated strip, (ii) for flexing the first elongated strip with respect to the drive member, and (iii) for flexing the second elongated strip with respect to the member of drive.
    [0007] The device can comprise at least two flexible joints.
    [0008] The at least two flexible joints may comprise a resilient member.
    [0009] The at least two flexible joints may comprise a pin.
    [00010] The at least two flexible joints may comprise a circular crown.
    [00011] The pin can be arranged inside the circular crown.
    [00012] The device may comprise a first pin which is attached to, and which at least extends upwardly from, at least one of the first elongated strip and the second elongated strip.
    [00013] The device may comprise a second pin which is attached to, and which at least extends upwardly from, at least one of the first elongated strip and the second elongated strip.
    [00014] The device may comprise a first resilient member in the form of a ring that surrounds the first pin.
    [00015] The device may comprise a first resilient member in the form of a ring that surrounds the first pin; and a second resilient member in the form of a ring that surrounds the second pin.
    [00016] The device may comprise a first circular crown which is attached to at least one of the first elongated strip and the second elongated strip.
    [00017] The device may comprise a second circular crown which is attached to at least a second of the first elongated strip and the second elongated strip.
    [00018] The first elongated strip may have a first plurality of holes that are spaced along the first elongated strip, wherein each of the first plurality of holes is configured to receive a removable fastener for securing the first elongated strip to at least one elongated bar.
    [00019] The second elongated strip may have a second plurality of holes that are spaced along the second elongated strip, wherein each of the first plurality of holes is configured to receive a removable fastener for securing the second elongated strip to at least one elongated bar.
    [00020] The at least one elongated bar may include a first elongated bar and a second elongated bar, and in addition the first elongated strip is configured to be attached to the first elongated bar, and the second elongated strip is configured to be attached to the second elongated bar. Brief Description of Drawings
    [00021] Figure 1 is a partially sectioned view of a central region of an reciprocating knife, a drive mechanism for driving the reciprocating knife, and a drive coupler for coupling the reciprocating knife to the drive mechanism .
    [00022] Figure 2 is a perspective view of the left side drive coupler, the drive mechanism and the reciprocating knife in figure 1.
    [00023] Figure 3 is a cross-sectional view of the arrangement in figure 2, taken on section line 3-3 in figure 2.
    [00024] Figure 4 is a perspective view of a second embodiment of the drive coupler, the drive mechanism, and the reciprocating knife.
    [00025] Figure 5 is a cross-sectional view of the arrangement in Figure 4, taken on section line 5-5 in Figure 4.
    [00026] Figure 6 is a perspective view of a third embodiment of the drive coupler, the drive mechanism and the reciprocating knife.
    [00027] Figure 7 is a cross-sectional view of the arrangement in Figure 6, taken on section line 7-7 in Figure 6. Detailed Description
    [00028] The figures shown here, the reciprocating knife was cut on both the left and right ends. The reciprocating knife portions that have been cut out are identical in construction to the illustrated reciprocating knife end portions 106, and from which they extend in the same directions. In a typical agricultural harvest head, the reciprocating knife extends between 5 and 10 m both to the left and to the right from the central region illustrated in figure 1.
    [00029] The term "side by side", "laterally", or "lateral" refers to a direction that is horizontal and generally parallel to the longitudinal extension of the reciprocating knife and perpendicular to a direction of travel "V" of the machine when it travels through field crop crops. The terms "ahead of", "forward", "ahead" and the like, refer to a direction parallel to the direction of travel "V". the terms "rear", "rear", "rear", "to the rear of" and the like refer to a direction opposite to the direction of travel "V".
    [00030] Figure 1 illustrates a drive mechanism 100, a left-side drive coupler 102, a right-side drive coupler 104, and a reciprocating knife 106.
    [00031] The drive mechanism comprises a frame 108 which houses a first alternate drive member 110, a left-hand drive member 112, and a right-hand drive member 114.
    [00032] Frame 108 supports the first reciprocating actuation member 110, which extends back and forth and is driven in a forward and backward direction (indicated by the double-ended arrow superimposed on it) by a power source (not shown).
    [00033] The left-hand drive member 112 is supported on the frame 108 to pivot with respect to the chassis around a first pivot joint 116 in the direction indicated by the double-ended arrow, adjacent to the left-hand drive member 112 .
    [00034] The right-hand drive member 114 is supported on the frame 108 to pivot with respect to the frame 108 around a second pivot joint 118 in the direction indicated by the double-ended arrow, adjacent to the right-side drive member 114.
    [00035] Reciprocating knife 106 includes an elongated front bar 120 and an elongated rear bar 122. The elongated front bar 120 and the elongated rear bar 122 extend laterally, perpendicular to the direction of travel "V" of the reciprocating knife 106 when it is passed through field crop crops.
    [00036] The front elongated bar 120 is attached to the right-hand drive coupler 104, which in turn is attached to the right-hand drive member 114.
    [00037] The rear elongated bar 122 is attached to the left-hand drive coupler 102, which, in turn, is attached to the left-hand drive member 112.
    [00038] When the first reciprocating drive member 110 is driven forward (i.e., parallel to the "V" direction, the front end 124 of the first reciprocating driving member 110 moves forward.
    [00039] The front end 124 is pivotally coupled to the proximal end 126 of the left side drive member 112 in a third pivot joint 128. The front end 124 is also pivotally coupled to the proximal end 130 of the right side drive member 114 on a fourth pivot joint 132.
    [00040] The first pivot joint 116 and the second pivot joint 118 are fixed with respect to the frame 108, and thus the movement in front of the first alternate drive member 110 causes the left-hand drive member 112 to pivot in counterclockwise (in figure 1) around the first pivot joint 116.
    [00041] In a similar manner, the movement in front of the first reciprocating drive member 110 causes the right-hand drive member 114 to pivot in a clockwise direction (in figure 1) around the second pivot joint 118.
    [00042] When the left-hand drive member 112 pivots in a counterclockwise direction, the front end 134 of the left-hand drive member 112 translates outward (that is, to the right in figure 1). When the right-hand drive member 114 pivots in a clockwise direction, the front end 136 of the right-hand drive member 114 also translates outward (i.e., to the left in figure 1).
    [00043] Thus, the movement in front of the first reciprocating drive member 110 causes the front ends of the two drive members to move away from each other in opposite directions.
    [00044] Since each actuating member is coupled to a different elongated bar, this causes the two elongated bars to move away from each other in opposite directions.
    [00045] Following the reverse logic of the above description, the backward movement of the first reciprocating drive member 110 causes the front ends of the two drive members to move in one direction to the other in opposite directions.
    [00046] The front end 134 of the left side drive member 112 is coupled to the rear elongated bar 122. The front end 136 of the right side drive member 114 is coupled to the front elongated bar 120. Thus, the front elongated bar 120 and the rear elongated bar 122 translate in opposite directions both outwardly and inwardly (and perpendicular to the direction of travel "V") when the first reciprocating drive member 110 moves in a forward direction and a backward direction, respectively.
    [00047] The reciprocating knife 106 also comprises a plurality of blades 138, which are screwed to the front elongated bar 120 and the rear elongated bar 122. The blades of the plurality of blades 138 are alternatively affixed to the front elongated bar 120 and the rear elongated bar 122, such that each other blade of the plurality of blades 138 along the length of the reciprocating knife 106 moves with the front elongated bar 120 and each other blade of the plurality of blades 138 along the reciprocating knife 106 moves with the rear elongated bar 122. This causes the blades to overlap with each other in their movements and allow the crop that passes between adjacent blades to be cut.
    [00048] The reciprocating knife 106 also comprises a plurality of stationary guards 140 that are spaced with respect to each other along the length of the reciprocating knife 106. The plurality of stationary guards 140 includes recesses (see, for example, figure 5) which accommodates the front elongated bar 120 and the rear elongated bar 122. The plurality of stationary protectors 140 includes mounting holes 142 (see figure 5), through which screws are passed, which fix the plurality of protectors stationary 140 to the forward extending floating arms (not shown), extending from a rear frame of the agricultural harvest head. Thus, the plurality of stationary protectors 140 is kept stationary with respect to the frame 108, and with respect to the front elongated bar 120 and its associated blades, and the rear elongated bar 122 and its associated blades. This allows the associated blades, when they reciprocate, to move back and forth against each other to also reciprocate back and forth against the stationary guards 140, causing the cut to occur both between the blades of the front elongated bar 120 and the rear elongated bar 122 and between the blades and the stationary protectors 140.
    [00049] Figures 2 and 3 illustrate details of the right side drive member 114, the right side drive coupler 104, and the reciprocating knife 106. The left side drive member 112 and the drive coupler of left side 102 are identically arranged, and therefore are not shown or described in more detail here.
    [00050] In figure 2, the right-hand drive coupler 104 comprises a first elongated member 144 which further comprises a first elongated strip 146 with a plurality of holes 148 extending through it. The plurality of holes 148 is aligned with corresponding holes in the front elongate bar 120. A first plurality of screws 150 extends upward through corresponding holes in the front elongate bar 120 and the screws are threadedly engaged with the plurality of holes 148. In this way , the first elongated strip 146 is attached to the front elongated bar 120.
    [00051] The right-hand drive coupler 104 additionally comprises a first flexible joint 152 which is integrally formed with the first elongated strip 146. The first flexible joint 152 is attached to one end of the first elongated strip 146. The first flexible joint 152 comprises a first pin 154 which extends vertically.
    [00052] The first flexible joint 152 further comprises a first resilient member 156 in the form of a ring, which extends around the circumference of the first pin 154. The first resilient member 156 is received in a circular crown 158 at the front end 136 of the right-side drive member 114. The first resilient member and any of the resilient members referred to here are formed from a polymeric material, such as urethane or / and elastomer. Any of the resilient members referred to herein may comprise or include one or more spherical bearings. Alternatively, they may comprise or include springs, such as coil springs, leaf springs, Belleville springs, spring washers or the like, to allow the pins to flex with respect to the circular crowns that surround and support them.
    [00053] The resilient coupling allows the first pin 154 (and thus the first flexible joint 152, and the right-hand drive coupler 104 as well) to flex with respect to the front end 136.
    [00054] Flexion allows the front end 136 to follow a slightly arched path, but usually side by side, defined by its pivot around the second pivot joint 118, additionally allows the front elongated bar 120 to follow a straight line path defined by recesses in the stationary protectors 140 that receive, guide and support the front elongated bar 120.
    [00055] The first flexible joint 152 further comprises a removable fastener 160, shown here as a nut, which is threadedly engaged with an upper end of the first pin 154. the removable fastener 160 secures the first flexible joint 152 to the front end 136 of the right-hand drive member 114.
    [00056] The right-hand drive coupler 104 further comprises a second elongated strip 162, which is flexibly coupled to the first elongated strip 146 (and thus to the first elongated member 144) by a second flexible joint 164. The second elongated strip 162 is extends laterally and above the front elongate bar 120. The second elongate strip 162 defines a second plurality of holes 166 that are spaced along the component of the second elongate strip 162. The second plurality of holes 166 is aligned with a corresponding plurality of holes in the front elongated bar. A second plurality of screws 170 extends upwards from the corresponding plurality of holes in the elongated bar and the screws are threadedly engaged in the second plurality of holes 166 thus securing the second elongated strip 162 to the front elongated bar 120.
    [00057] The second flexible joint 164 is constructed substantially identically to the first flexible joint 152. It comprises a second pin 172 which extends upwardly and is integral with the second elongated strip 162. The second flexible joint 164 further comprises a second resilient component 174 which is similar to the first resilient member 156. The second resilient component 174 is formed as a ring. The second resilient component 174 surrounds 172 and is received within a circular crown 176 formed at one end of the first elongated member 144. The circular crown 176 is positioned on the first elongated member 144 in a position opposite to the first elongated strip 146.
    [00058] The second flexible joint 164 additionally comprises a second removable fastener 178, shown here as a nut, which secures the second pin 172 to the circular crown 176.
    [00059] By means of this arrangement, the first elongated strip 146 can pivot with respect to the second elongated strip 162, and both the first elongated strip 146 and the second elongated strip 162 can pivot with respect to the front end 136 of the first elongated member 144.
    [00060] The relative pivoting of the first elongated strip 146 with respect to the second elongated strip 162 allows the front elongated bar 120 to pivot up and down in the region of the right-hand drive coupler 104 at its outer end.
    [00061] The second flexible joint 164 (and particularly the second resilient component 174) allows pivoting of the first elongated strip 146 with respect to the second elongated strip 162. However, this pivoting is restricted by the nature of the second resilient component 174 to pivot around from a point generally in the center of the second pin 172. In the illustrated embodiment, it is located above the front elongated bar 120, as best shown in figure 3. If the front elongated bar 120 was continuous in the illustrated embodiment, any upward bending of the second elongated strip 162 with respect to the first elongated strip 146 could apply significant tractive force to the front elongated bar 120. For this reason, the front elongated bar 120 is configured in two adjacent sections that end adjacent to each other, with free ends facing each other and in an end-to-end relationship. A first section 180 of the front elongate bar 120 ends immediately adjacent to a second section 182 of the front elongate bar 120. The first section 180 is affixed to the first elongated strip 146, and the second section 182 is affixed to the second elongated strip 162. The ends immediately adjacent to the first section 180 in the second section 182 are thus allowed to move when the outer end of the second elongated strip 162 pivots upwards with respect to the first elongated strip 146 and are allowed to move together when the outer end of the second elongated strip 162 pivots downwards with respect to the first elongated strip 146. If the pivot center defined by the second flexible joint 164 is located closer (or in) to the horizontal plane of the front elongated bar 120, the front elongated bar 120 can be made continuous.
    [00062] Figures 4 and 5 illustrate a first alternative embodiment of the right-side drive coupler 104. In the embodiment illustrated in figures 4 and 5, the first elongated strip 146 is similarly affixed to the front elongated bar 120 with a similar arrangement of holes and screws 150. The first elongated strip 146 is similarly formed integrally with a first flexible joint 152 that couples the first elongated strip 146 to the front end 136 of the right-hand drive member 114. In the arrangement illustrated in figures 4 and 5, the second elongated strip 162 is similarly affixed to the front elongated bar 120 with a similar arrangement of holes and screws 170. The second elongated strip 162 is similarly formed integral with a second flexible joint 164.
    [00063] In the embodiment of figures 4-5, a third flexible joint 187 is provided to couple the first elongated strip 146 to the front end 136 of the right-hand drive member 114. In place of a first pin 154 formed integrally with the first elongated strip 146, as illustrated in figures 1 - 3, the third flexible joint 187 is defined by a circular crown 184, the first resilient member 156, and a pin 186.
    [00064] Circular crown 184 is integrally formed with the first elongated strip 146. Circular crown 184 houses the first resilient member 156. The first resilient member 156 surrounds a pin 186. Pin 186, in turn, is received and supported in an upper opening 188 and a lower opening 190, which are arranged at the front end 136 of the right-hand drive member 114.
    [00065] When the right-hand drive member 114 alternately moves back and forth, generally parallel to the longitudinal extension of the front elongated bar 120, in the embodiment of figures 4-5, the first resilient member 156 flexes and allows the first elongated strip 146 to pivot with respect to the front end 136 of the right-hand drive member 114 and also pivot with respect to the second elongated strip 162.
    [00066] A fourth flexible joint 189 is provided to couple the second elongated strip 162 to the front end 136 of the right-hand drive member 114. In place of the second pin 172 formed integrally with the second elongated strip 162, as shown in figures 1 -3, the fourth flexible joint 189 is defined by the circular crown 192, the second resilient component 174 and the pin 186.
    [00067] The circular crown 192 is integrally formed with the second elongated strip 162. The second elongated strip 162 houses the second resilient component 174. The second resilient component 174 surrounds the pin 186.
    [00068] When the right-hand drive member 114 moves alternately back and forth generally parallel to the longitudinal extension of the front elongated bar 120, the second resilient component 174 flexes and allows the second elongated strip 162 to pivot with respect to to the front end 136 of the right-hand drive member 114 and also allows the second elongated strip 162 to pivot with respect to the first elongated strip 146.
    [00069] As in the embodiment of figures 1 - 3, the front elongated bar 120 is provided in two sections - the first section 180 and the second section 182 - for the same reasons described above with respect to figures 1-3.
    [00070] Figures 6 and 7 illustrate a second alternative embodiment of the right-side drive coupler 104.
    [00071] In the embodiment of figures 6-7, a fifth flexible joint 193 is provided to couple the first elongated strip 146 to the front end 136 of the right-hand drive member 114. The fifth flexible joint 193 is defined by a pin 194, the first resilient member 156, and a circular crown 196.
    [00072] Pin 194 is integrally formed with the first elongated strip 146 and extends vertically upwards from it. The ring crown 196 is attached to the front end 136 of the right-hand drive member 114. The ring crown 196 houses the first resilient member 156. The first resilient member 156 surrounds the pin 194.
    [00073] The right-hand drive member 114 moves alternately back and forth generally parallel to the longitudinal extension of the front elongated bar 120, the first resilient member 156 flexes and allows the first elongated strip 146 to pivot with respect to front end 136 of the right-hand drive member 114.
    [00074] A sixth gasket 200 is provided to couple the second elongated strip 162 to the front end 136 of the right-hand drive member 114. The sixth gasket 200 is defined by a pin 202, the second resilient component 174, and a circular crown 204.
    [00075] The pin 202 is integrally formed with the second elongated strip 162 and extends vertically upwards from it. The ring crown 204 is attached to the front end 136 of the right-hand drive member 114. The ring crown 204 houses the second resilient component 174. the second resilient component 174 surrounds the pin 202.
    [00076] When the right-hand drive member 114 alternately moves back and forth generally parallel to the longitudinal extension of the front elongated bar 120, the second resilient component 174 flexes and allows the second elongated strip 162 to pivot with respect to to the front end 136 of the right-hand drive member 114 and also allows the second elongated strip 162 to pivot with respect to the first elongated strip 146.
    [00077] As in the embodiments of figures 1 - 5, the front elongated bar 120 is provided in two sections - the first section 180 and the second section 182, for the same reasons described above with respect to figures 1-5.
    [00078] Each embodiment of the right-hand drive coupler 104 illustrated and described here is constructed in the same way as the left-hand drive coupler 102. for this reason, the left-hand drive coupler 102 has not been illustrated in detail.
    [00079] Each embodiment comprises a first elongated strip 146, which is affixed to the front elongated bar 120 and extends in a first lateral direction from the front end 136 of the right-hand drive member 114 and is attached to the front elongated bar 120 with a plurality of removable fasteners, such as threaded pins or screws.
    [00080] Each of the three embodiments also comprises a second elongated strip 162, which extends in a second lateral direction, opposite the first lateral direction, from the front end 136 of the right-hand drive member 114, and is fixed to it with a plurality of removable fasteners, such as threaded pins or screws.
    [00081] Each of the three embodiments also comprises at least two flexible joints, which allow the first elongated strip 146 and the second elongated strip 162 to pivot with respect to each other and allow the first elongated strip 146 and the second strip elongated 162 pivot with respect to the front end 136 of the right-hand drive member 114.
    [00082] In the arrangement of figures 1 - 3, one of these at least two flexible joints is provided to couple the first elongated strip 146 and the second elongated strip 162 directly to each other, and the other of these at least two flexible joints is provided to couple the first elongated strip 146 to the front end 136 of the right-hand drive member 114.
    [00083] In this arrangement of figures 4-5, one of these at least two flexible joints is provided to couple the first elongated strip 146 to the front end 136, and another of these at least two flexible joints is provided to couple the second elongated strip 162 to the front end 136 of the right-hand drive member 114.
    [00084] In the arrangement of figures 6-7, one of these at least two flexible joints is provided to couple the first elongated strip 146 to the front end 136 of the right-hand drive member 114, and another of these at least two flexible joints is provided for coupling the second elongated strip 162 to the front end 136 of the right-hand drive member 114.
    [00085] It should be understood that the particular embodiments shown and discussed here are not just ways in which the invention can exist. They are the currently preferred embodiments of the invention. A person specialized in the design and manufacture of an agricultural harvester and agricultural harvest head can easily conceive of other variations that would also fall within the scope of the appended claims.
    [00086] For example, any of the three embodiments of the right-hand drive coupler 104 can be reversed in a lateral direction and mounted on the right-hand drive member 114 and the front elongated bar 120. In addition, any of the three embodiments of the right-hand drive coupler 104 can be used in place of the left-hand drive coupler 102 illustrated in figure 1. In addition, any of the three embodiments of the right-hand drive coupler 104 can be affixed to the rear elongated bar 122, instead of the front elongated bar 120, and any of the embodiments of the left side drive coupler 102 can be affixed to the front elongated bar 120, instead of the rear elongated bar 122. In addition , either embodiment of the right-hand drive coupler 104 can be used to drive a reciprocating knife 106 that supports only one the only elongated bar. In the embodiments illustrated here, the pins generally extend vertically and the central axes of the circular crowns generally extend vertically. In an alternative arrangement, these orientations can be changed so that the pins and central axes of the circular crowns extend horizontally, or extend at any angle between the vertical and the horizontal.
    权利要求:
    Claims (14)
    [0001]
    1. Drive coupler (102, 104) for coupling an reciprocating knife (106) to a driving member (112, 114), where the reciprocating knife includes at least one elongated bar (120, 122, 180 , 182) having a longitudinal extension and fixed to a plurality of blades (138), wherein the at least one elongated bar (120, 122, 180, 182) is supported on support members (140) which restrict at least one elongated bar (120, 122, 180, 182) to alternatively move in a direction generally parallel to the longitudinal extension of at least one elongated bar (120, 122, 180, 182), the drive coupler (102, 104) comprises: a first elongated strip (146) configured to be attached to at least one elongated bar (120, 122, 180); and a means (152, 187, 193) for flexing the first elongated strip (146) with respect to the drive member (112, 114), characterized by the fact that a second elongated strip (162) configured to be attached to at least an elongated bar (120, 122, 182); and a means (164, 189, 200) for flexing the first elongated strip (146) with respect to the second elongated strip (162), and for flexing the second elongated strip (162) with respect to the driving member (112, 114) .
    [0002]
    2. Drive coupler (102, 104) according to claim 1, characterized in that the means comprises at least two flexible joints (152, 164, 187, 189, 193, 200).
    [0003]
    Drive coupler (102, 104) according to claim 2, characterized in that the at least two flexible joints (152, 164, 187, 189, 193, 200) comprise a resilient member (156, 174) .
    [0004]
    4. Drive coupler (102, 104) according to claim 2, characterized by the fact that the at least two flexible joints (152, 164, 187, 189, 193, 200) comprise a pin (154, 172, 186, 194, 202).
    [0005]
    5. Drive coupler (102, 104) according to claim 4, characterized by the fact that the at least two flexible joints (152, 164, 187, 189, 193, 200) comprise a circular crown (158, 176, 184 , 192, 196, 204).
    [0006]
    6. Drive coupler (102, 104) according to claim 5, characterized by the fact that the pin (154, 172, 186, 194, 202) is arranged inside the circular crown (158, 176, 184, 192, 196 , 204).
    [0007]
    7. Drive coupler (102, 104) according to claim 1, characterized by the fact that the means comprises a first pin (154, 172, 194, 202) which is fixed to, and which extends upwards from at least one of the first elongated strip (146) and the second elongated strip (162).
    [0008]
    Drive coupler (102, 104) according to claim 7, characterized by the fact that the means additionally comprises a second pin (154, 172, 194, 202) which is fixed to, and which extends upwards from at least one of the first elongated strip (146) and the second elongated strip (162).
    [0009]
    Drive coupler (102, 104) according to claim 7, characterized in that the means additionally comprises a first resilient member (156, 174) in the form of a ring surrounding the first pin.
    [0010]
    10. Drive coupler (102, 104) according to claim 8, characterized by the fact that the means additionally comprises: a first resilient member (156, 174) in the form of a ring that surrounds the first pin (154, 172, 194, 202); and a second resilient member (156, 174) in the form of a ring surrounding the second pin (154, 172, 194, 202).
    [0011]
    Drive coupler (102, 104) according to claim 1, characterized in that the device comprises a first circular crown (184, 192) which is fixed to at least one of the first elongated strip (146) and the second elongated strip (162).
    [0012]
    Drive coupler (102, 104) according to claim 11, characterized in that the means additionally comprises a second circular crown (184, 192) which is attached to at least one second of the first elongated strip (146) and the second elongated strip (162).
    [0013]
    Drive coupler (102, 104) according to claim 1, characterized in that the first elongated strip (146) has a first plurality of holes (148) that are spaced along the first elongated strip (146) , each of the first plurality of holes (148) is configured to receive a removable fastener (150) for attaching the first elongated strip (146) to at least one elongated bar (120, 122, 180).
    [0014]
    Drive coupler (102, 104) according to claim 13, characterized in that the second elongated strip (162) has a second plurality of holes (166) that are spaced along the second elongated strip (162) , wherein each of the second plurality of holes (166) is configured to receive a removable fastener (170) for securing the second elongated strip (162) to at least one elongated bar (120, 122, 182), wherein preferably the at least one elongated bar (120, 122) includes a first elongated bar (180) and a second elongated bar (182), and the first elongated strip (146) is configured to be attached to the first elongated bar (180), and the second elongated strip (162) is configured to be attached to the second elongated bar (182).
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    同族专利:
    公开号 | 公开日
    US9357696B2|2016-06-07|
    CA2854403C|2021-03-09|
    EP2820934B1|2017-03-01|
    CA2854403A1|2015-01-01|
    AR096771A1|2016-02-03|
    US20150000237A1|2015-01-01|
    CN104272929A|2015-01-14|
    BR102014016121A2|2020-01-28|
    RU2014126590A|2016-01-27|
    RU2661138C2|2018-07-11|
    EP2820934A1|2015-01-07|
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    法律状态:
    2020-01-28| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2020-02-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-06-09| B09A| Decision: intention to grant|
    2020-11-10| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/06/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/932,614|US9357696B2|2013-07-01|2013-07-01|Drive coupler for a reciprocating knife|
    US13/932,614|2013-07-01|
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