• 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:
    DEVICE AND METHOD FOR FLEXING A TAB. A device for flexing a flap in a container that is already filled and sealed. The device includes a reinforcement for making contact against the flap and a number of lever arms arranged to extend around the flap from multiple different sides. The lever arms are configured to move between a first orientation that is spaced away from the flap, and a second position in contact with the flap. The lever arms are further configured to apply force to the end of the flap to flex a second end upward away from a top side of the container.
    公开号:BR112015022695B1
    申请号:R112015022695-7
    申请日:2014-03-12
    公开日:2021-02-02
    发明作者:Matthew Lee Arthur；Leia Barnwell
    申请人:Station 4 Llc；
    IPC主号:
    专利说明:

    RELATED REQUESTS
    [001] The present application claims the benefit of U.S. Application No. 61 / 788,594 filed on March 15, 2013, entitled "Devices and Methods for Bending a Tab on a Container". FUNDAMENTALS
    [002] Containers are used to store a variety of products, such as drinks, food items, and consumer and industrial products. The containers include an exterior that extends around a sealed interior space. A flap is mounted on the container to provide the user with a way to open the container and gain access to the product in the sealed interior space.
    [003] Figure 1 illustrates one embodiment of such a container. This mode is particularly applicable for storing beer or soft drinks. The container 90 includes a cylindrical shape with a side wall 95 and a top side 91. A flap 100 is connected to the top side 91 by a connector 109. A portion of the flap extends over an ejector 94 which is sealed transversely to a propped opening 97. To open the container, the user lifts a first end 101 of the flap 100 which is positioned away from the opening 97. This forces the pivot of the flap 100 around the connector 109 and applies a force to the ejector 94 through the second end 102. This force breaks the ejector 94 of the opening 97 thus providing access to the product in the sealed interior space.
    [004] A problem with existing containers is the difficulty for a user to grasp or otherwise apply force to the first end 101 of the flap 100. The flap 100 is usually a relatively small piece that is mounted in closer proximity to the top side 91 of container 90. A user often finds it difficult to place a portion of his finger under the first end 101 to apply the vertical force necessary to pivot flap 100 and move ejector 94 through opening 97.
    [005] For a manufacturer that fills and seals the container, it is very difficult to address this issue after a flat flap that is attached to the container. It is difficult to flex the flat flaps 100 that are mounted on the filled containers without removing the sealing of the containers. The force required to flex the flaps causes the flaps to pivot, thus pushing the second end against the ejector and removing the seal from the opening.
    [006] Another problem that manufacturers have is to flex the flap before affixing the end of the container to a residue of the container. Many assembly lines are set up to handle container ends that include flat flaps. Flexed flaps can cause feeding problems with the assembly line machinery resulting in poor quality and / or slower production. SUMMARY
    [007] The present application is directed to devices and methods for flexing a flap that is connected to a sealed container. The flap is flexed without removing the seal from the contents of the container.
    [008] One modality is directed to a device for flexing a flap that is attached to a sealed container. The device includes a reinforcement with a contact surface at a first end and has an elongated axial length. The device also includes a contact member that is movable along the axial length of the reinforcement. The contact member includes a circumferential tapered section. The device includes a support that is separated from each one between the reinforcement and the contact member and that extends around the reinforcement; The device includes lever arms positioned around the reinforcement that each includes an intermediate section that is pivotally attached to the support. Each of the lever arms includes a first end with an angled contact surface and an opposite second end with a bearing that makes contact against the tapered section of the contact member. The first and second ends are on opposite sides of the middle section. The lever arms are configured to pivot around the intermediate section during movement of the contact member along the axial length of the reinforcement between a first position with the first ends spaced radially away from a first end of the reinforcement and a second position with the first ends in greater proximity to the first end of the reinforcement.
    [009] The contact member may include a central opening that receives the reinforcement so that the contact member extends circumferentially around the reinforcement.
    [0010] The tapered section of the contact member can be at an axial end of the contact member.
    [0011] The reinforcement may include a narrower width at the first end than in the proximal section along the axial length away from the first end with the width measured perpendicular to a geometric axis extending along the axial length.
    [0012] The lever arms can be separated from the reinforcement and from the contact member.
    [0013] Each of the angled contact surfaces can include a variable width with a tip that is narrower than the foot section with the tip being in closer proximity to the reinforcement than the foot section.
    [0014] Each of the lever arms can include a request member to request the second ends of the lever arms against the tapered section of the contact member.
    [0015] Another modality is directed to a device for flexing a flap that is attached to a sealed container. The device includes an elongated reinforcement with a first end with a contact surface. A contact member is movable along a length of the reinforcement with the contact member comprising a circumferential tapered section. A support that extends around the reinforcement. Lever arms are pivotally attached to the support and extend circumferentially around the reinforcement. Each lever arm includes a pivot connection, and a bearing positioned on a second side opposite the pivot connection; The device is movable between a first position with the contact member in a first axial location in relation to the reinforcement and each of the lever arms in a first pivot orientation with the bearings in contact with the tapered section and the wedges located radially away of the reinforcement, and a second position with the contact member in a second axial location different from the reinforcement and each of the lever arms in a second pivot orientation with the bearings in greater contact along the tapered section and the wedges located radially in closer proximity to the reinforcement.
    [0016] The wedge can be positioned at a first end of each of the lever arms.
    [0017] The contact member can extend around the reinforcement.
    [0018] The tapered section of the contact member may be at an axial end of the contact member.
    [0019] The reinforcement may include a narrower width at the first end than in a proximal section axially away from the first end.
    [0020] Each of the wedges can include a point that is narrower than a foot section.
    [0021] Each of the lever arms can include a request member to request a second end in the direction of the tapered section.
    [0022] The reinforcement and the contact member can be coaxially aligned along a common geometric axis. Another embodiment is directed to a method for flexing a flap that is attached to a sealed container. The method includes: making contact with a reinforcement against the flap with one end of the flap extending outward beyond the reinforcement; positioning the lever arms circumferentially around the reinforcement and around the flap; while the reinforcement is in contact with the tab, move the tapered contact member axially along the reinforcement and pivot each of the plurality of lever arms with a first end of the lever arms moving radially inward in the direction of the reinforcement and a second end of the lever arms remaining in contact with the tapered contact member and moving radially outward from the reinforcement; move at least one wedge positioned at the first end of each of the lever arms under the end of the flap that extends out of the reinforcement and flex the flap while remaining in contact against the flap.
    [0023] The method may also include aligning the wedges at the first end of each lever arm with the end of the reinforcement before moving the tapered contact member axially along the reinforcement.
    [0024] The method may also include requesting the first end of each arm radially away from the reinforcement.
    [0025] The method may also include sliding a bearing member on the second end of each arm along a tapered contact member while moving at least one wedge under the flap end.
    [0026] The method may also include moving the tapered contact member axially along the reinforcement and sliding bearing members at second ends of each arm from a first axial position along the tapered contact member that includes a width smaller to a second axial position along the tapered contact member that includes a larger width.
    [0027] The various aspects of the various modalities can be used alone or in any combination, as desired. BRIEF DESCRIPTION OF THE DRAWINGS
    [0028] Figure 1 is a perspective view of a container that includes a flap that extends transversely in an opening on a top side.
    [0029] Figure 2 is a schematic side view of a device for flexing a flap with only two lever arms illustrated.
    [0030] Figure 3 is a side view of the device with an intermediate section of each lever arm cut to provide a view of the interior of the device.
    [0031] Figure 3A is a sectional view of a bearing member cut along the line I11-I11 of Figure 3
    [0032] Figure 4 is an exploded perspective view of a lever arm with a connector and a pin to be attached to the cylinder.
    [0033] Figure 5A is a top view of wedges aligned along a top side of a container when the device is in an open orientation.
    [0034] Figure 5B is a top view of wedges aligned along a top side of a container when the device is in a closed orientation.
    [0035] Figure 6 is a side view of a device with only a lever arm illustrated with the device in a first position during use.
    [0036] Figure 7 is a side view of a device with only one lever arm illustrated with the device in a second position during use.
    [0037] Figure 8 is a side view of a device with only one lever arm illustrated with the device in a third position during use.
    [0038] Figure 9 is a side view of a device with only a lever arm illustrated with the device in a fourth position during use.
    [0039] Figure 10 is a side view of a flap that has been flexed by the device while attached to a top side of a sealed container. DETAILED DESCRIPTION
    [0040] The present application is directed to a device for flexing a flap in a filled and sealed container. The device includes a reinforcement for making contact against the flap and a number of lever arms that initially extend around the flap on multiple different sides. The lever arms are configured to move between a first orientation that is spaced away from the flap, and a second position in contact with the flap. The lever arms are additionally configured to apply force to the end of the flap to flex a first end upwards and away from a top side of the container. The device can additionally be configured to engage with and flex the flap when the container is positioned at various rotational positions with respect to the device.
    [0041] For the purposes of this application, device 10 will be described in the orientation illustrated in Figure 2. This includes device 10 vertically above container 90. In addition, the movements of the components are described in relation to the center line C of container 90 This orientation is for ease of description in the description of the relative positioning of the various components of the device 10 and the container 90. It is understood that the device 10 and the container 90 can be positioned in a variety of different orientations and movable with respect to the different axes geometric and within different planes. For ease of expression, the various components of the device 10 will include distal sections that are in closer proximity to the container 90 when the device 10 is engaged with the container 90, and opposite proximal sections that are distant from the container 90.
    [0042] Figure 2 includes a device 10 and a container 90, each aligned along a common geometric axis C. It should be understood that the device 10 can also be positioned in different alignments with respect to the container 90.
    [0043] Figure 2 illustrates a device 10 positioned in contact with a container 90. The device 10 is aligned with the container 90 with a longitudinal axis of the device 90 and a longitudinal axis of the container 90, each being coaxial along the geometric axis C. Device 10 generally includes a central reinforcement 20, a tapered sleeve 30, and a cylinder 40 that includes a number of lever arms 50. Figure 2 includes only a pair of opposite lever arms 50, with a residue removed to provide illustration of reinforcement 20 and tapered sleeve 30.
    [0044] Each of the members 20, 30, 40, 50 is configured to move axially along the geometric axis C. The lever arms 50 are additionally configured to move radially in relation to the geometric axis C to move under the tab 100 and apply a bending force to the first end 101 of the tab 100. Figure 2 illustrates the first end 101 having already been flexed by the device 100.
    [0045] Reinforcement 20 includes an elongated shape with a first end 21 that makes contact against the flap 100. In one or more embodiments, the first end 21 includes a width W1 that is less than a width of the flap 100 measured between the first and the second ends 101, 102. A width of the reinforcement 20 can vary along its length. For example, as illustrated in Figure 2, the first end 101 includes a width less than the proximal section furthest along the length (i.e., furthest from the container 90). This smaller width in the distal section provides compensation for the lever arms 50 to move radially to engage with the flap 100. In one or more embodiments, a section of the reinforcement 20 includes a tapered shape with a width that increases in the direction of the proximal section. A width of the proximal section can be constant to facilitate contact with the tapered glove 30.
    [0046] The tapered sleeve 30 is configured to move axially along the reinforcement 20. In one or more embodiments, the tapered sleeve 30 includes a cylindrical shape. The tapered sleeve 30 includes an internal opening 30 designed to receive the reinforcement 20. The opening 32 is dimensioned in relation to the reinforcement 20 so that the sleeve 30 can move axially along the reinforcement 20. The sleeve 30 includes a first end 31 , a tapered section 33 that increases in width apart from the first end 31, and a proximal non-tapered section 34. In one or more embodiments, the tapered section 33 includes a curved configuration that extends along a periphery of a curve with a radius R extending from a center point P. In one or more embodiments, the tapered section 33 is flat (that is, not curved). In one or more embodiments as shown in Figure 2, the tapered section 34 begins at the first end 31 and extends closely over a portion of the sleeve 30.
    [0047] Cylinder 40 is positioned radially outwardly and extends around reinforcement 20 when device 10 is engaged with container 90, as shown in Figure 2. In one or more embodiments, cylinder 40 includes a shape cylindrical. The cylinder 40 includes a first end 41 that makes contact with the container 90. The first end 41 can include an indented shape and dimensioned to receive a raised edge 92 that extends around the periphery of the top side 91 of the container 90. One collar 43 is attached to cylinder 40 at a distance from the first end 41. collar 43 provides a connection and pivot point for lever arms 50. collar 43 includes an annular shape with a central opening sized to receive the arms lever 50 and reinforcement 20. In one or more embodiments, collar 43 is attached along a radially inner side of cylinder 40.
    [0048] Request members 44 can extend between cylinder 40 and lever arms 50. In one or more embodiments, each request member 44 includes a first end connected to cylinder 40 and a second end connected to one of the lever 50. In one or more embodiments, the request members 44 are connected to the cylinder 40 in closer proximity to the first end 41 than to the collar 43. The request members 44 apply a force to the lever arms 50 so that the arms lever 50 do not remain in the closed position. In one embodiment, the requesting members 44 are springs. Other embodiments can include other structures, such as a flexible filament.
    [0049] The lever arms 50 are positioned radially between the cylinder 40 and the reinforcement 20 when the device 10 is engaged with the container 90, as illustrated in Figure 2.
    [0050] The device 10 includes a number of lever arms 50 to extend around the circumference of the container 90. Each lever arm 50 includes an elongated shape with a first end 51 and a second end 52. An intermediate section of each lever arm 50 between the first and second ends 51, 52 is attached to cylinder 40. As shown in Figure 4, one or more connectors 53 can be positioned along the intermediate section to connect with collar 43. Connectors 53 can include openings sized to receive a pin 55. Pin 55 provides pivotal attachment of the lever arm 50 to the collar 43. Different connectors 53 can be positioned along the length of the middle section to adjust the lever arm pivot point 50. This adjustability applies to the use of lever arms 50 with containers of different sizes 90 and / or different types of device 10.
    [0051] A wedge member 60 is positioned at the first end 51 of each lever arm 50. The wedge members 60 include a narrow tip 61 that faces radially inward in the direction of the geometric axis C. The wedge 60 includes a tapered shape with a thickness increasing from the tip 61 in the direction of the lever arm 50. In one or more embodiments, the tip 61 includes an acute angle cylindrical shape.
    [0052] Figures 5A and 5B illustrate top views of the wedge members 60 in an open orientation (Figure 5A) and a closed orientation (Figure 5B). When the device 10 is engaged with the container 90, the lever arms 50 extend around the top surface 91 of the container 90 and encircle the flap 100 from different angular directions. In one or more embodiments, each wedge member 60 includes a tapered shape that decreases in size L from a foot section towards the point 61. The tapered length provides for lateral spacing between adjacent wedge members 60 when the lever arms 50 are in the open orientation as shown in Figure 5A. The tapered length provides that the adjacent wedge members 60 move together and in contact when the lever arms 50 are in closed orientation as illustrated in Figure 5B.
    [0053] Lever arms 50 also include a bearing member 54 at the second end 52. Each bearing member 54 is configured to move axially along the tapered section 33 of sleeve 30 when the lever arms 50 move between the open and closed orientations. The bearing member 54 can be shaped to facilitate the sliding movement along the tapered section. In one or more embodiments as shown in Figures 3A and 4, the bearing member 54 includes a curved outer surface that makes contact against the tapered section 33. In one or more embodiments, the bearing member 54 includes a circular cross-sectional shape . The bearing members 54 remain in contact with the tapered section 33 during the movement of the tapered sleeve 30.
    [0054] Figures 6 to 9 illustrate a modality of the device 10 in use to flex the flap 100. Initially, the device 10 is aligned with the container 90. In one or more embodiments, the device 10 is aligned with a longitudinal geometric axis of the device 10 aligned with the longitudinal axis of the container 90. One or more embodiments may include the longitudinal geometric axes offset from one another. For ease of view, figures 6 to 10 illustrate a single lever arm 50. It is understood that the plurality of lever arms 50 are included with the device 10 and extend around the device to surround the flap 100 as discussed above.
    [0055] Device 10 is brought into contact with container 90. This can include a device 10 being moved to make contact with stationary container 100, container 90 being brought into contact with stationary device 10, or simultaneous movement both container 90 and device 100.
    [0056] In one or more embodiments as shown in Figure 6, cylinder 40 is initially brought into contact against container 90. This may include the first end 41 of cylinder 40 making contact against peripheral edge 92 of container 90. In one or more embodiments, the cylinder 40 includes a circular sectional shape for making contact with the container 90 around its periphery. As shown in Figure 6, when a cylinder 40 is in contact with the container 90, the reinforcement 20 is in a retracted position with the first end 21 spaced away from the top side 91 of the container 90. The tapered sleeve 30 is also in a stowed position.
    [0057] In this initial position, the lever arms 55 are each positioned with the bearing members 54 at the second end 52 making contact against the first portion of the tapered section 33 in proximity to the first end 31. This also positions the first ends 51 and the wedges 60 in the vicinity of the cylinder 40. In one or more embodiments as shown in Figure 6, the lever arms 50 are substantially parallel with the longitudinal geometric axis of the device 10. This positioning of the lever arms 50 space the wedges 60 for away from flap 100 (see Figure 5A). The bearing members 54 can move along different lengths of the tapered section 33 depending on the size of the container 90.
    [0058] As shown in Figure 7, the reinforcement 20 is then moved downwards and brought into contact with the flap 100. In one or more embodiments, the reinforcement 20 fixes the flap against the top side 91 of the container 90. A the first end 21 is positioned to make contact with the flap 100 with the first end 101 of the flap 100 positioned laterally beyond the first end 21 of the reinforcement 20. In one or more embodiments, the tapered sleeve 30 remains stationary during the movement of the reinforcement 20 such that the lever arms 50 remain in the same relative position. In one or more embodiments, the container 90 is already filled and the interior space is under pressure at the time when device 10 initially makes contact. This provides the container 90 to be more rigid, thus providing a firm base for contact with the device 10.
    [0059] As illustrated in Figure 8, after the reinforcement 20 is positioned against the flap 100, the tapered sleeve 30 is then moved axially in the direction of an arrow A downwards with respect to and along the reinforcement 20. This movement causes that the lever arms 50 pivot around the connectors 53 with the collar 43. This pivoting movement is caused by the bearing members 54 at the second ends 52 of the lever arms 50 traveling together with the tapered section 33 of the sleeve 30. The shape tapered causes the bearing members 54 and the second ends 52 to move radially outward from the reinforcement 20 in the direction indicated by the arrow X while the wedges 60 and the first ends 51 move laterally inward in the direction indicated by the arrow B The force applied by the tapered sleeve 30 to the lever arms 50 is greater than the request force applied by the request members 44, thus providing that the pivoting movement of the lever arms 50 in all Connectors 53 on collar 43. As shown in Figure 9, additional relative movement of the tapered sleeve 30 along the reinforcement 20 causes additional pivoting movement of the lever arms 50.
    [0060] As shown in Figure 5B, the wedges 60 at the first ends 51 of the lever arms 50 move inwardly relative to the container 90. This movement causes one or more wedges 60 to move under the first end 101 of the flap 100. The force of one or more wedges 60 making contact with and moving under the first end 101 applies a bending force to the flap 100. In one or more embodiments, the force applied by one or more wedges 60 causes the force flexion is applied to the flap 100 along a line formed by a flexion shoulder 22 at the first end 21 of the reinforcement 20. As shown in Figure 10, the flexion 103 positions the first end 101 farthest from the top side 91 of the container 90 to facilitate a user to grasp and / or place their fingers under the flap 100 to remove the seal from the container 90.
    [0061] Removing device 10 from container 90 includes movement of various components in reverse order. From a closed orientation as shown in Figure 9, the tapered sleeve 30 is moved upwardly relative to the reinforcement 20 (i.e., away from the container). This movement causes the second ends 52 and the bearing members 54 to slide along the tapered section 33 of the sleeve 30. This movement pivots the lever arms 50 around the connectors 53 with the first ends 51 and wedges 60 moving back in the direction of the cylinder 40. This movement is facilitated by the soliciting force of the soliciting members 44 that apply a return force in this direction to the lever arms 50. Once the lever arms 50 have moved away from the flap 100, the reinforcement 20 and the cylinder 40 can be moved axially away from the container 90.
    [0062] The device 10 provides the flexion of the flap 100 without causing the container 90 to lose its seal. The force applied to the flap 100 by the one or more wedge member 60 is not allowed to cause the second end 102 of the flap 100 to press down on the ejector 94 by the contact and positioning of the reinforcement 20. The force results in the first end 101 flexing in around the apex 22 of the reinforcement 20.
    [0063] The placement of the wedge members 60 around the perimeter of the container 90 accommodates the container 90 in various rotational positions with respect to the device 10. One or more wedges 60 will move under the flap 100 regardless of the rotational position.
    [0064] Therefore, there is no need to align the container 90 with a particular rotational orientation in relation to the device 10 before the start of the process.
    [0065] In one or more embodiments as shown in Figure 11, a support member 80 extends around cylinder 40. Support member 80 is attached to and supports cylinder 40. One or more fasteners 81 can connect the outer member 80 to cylinder 40.
    [0066] Reinforcement 20, tapered sleeve 30, and cylinder 40 can be moved axially in different directions through a variety of different ways. In one or more modalities, one or more components are energized through one or more motors. In one or more modalities, one or more of these components are moved by manual force that is applied by the operator.
    [0067] Device 10 can be used in a variety of different environments. In one or more embodiments, device 10 is used in a canning line in an installation. Before reaching the device, the container 10 is sealed or sewn by the process of affixing a metal container end that includes the top side 91 and the flap 100 to a container body that includes a side wall 95. The device 10 can be implemented directly in the facility's maintenance line.
    [0068] Spatially related terms such as "under", "below", "lowest", "about", "upper", and the like, are used for ease of description to explain the positioning of an element in relation to a second element. These terms are intended to cover different orientations of the device, in addition to orientations different from those represented in the figures. In addition, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc., and are also not intended to be limiting. Similar terms refer to similar elements throughout the description.
    [0069] As used herein, the terms "have", "containing", "including", "comprising" and the like are open terms that indicate the presence of indicated elements or characteristics, but do not preclude additional elements or functionality. The articles "one", "one" and "a" are intended to include the plural as well as the singular, unless the context clearly indicates otherwise.
    [0070] The present invention can be carried out in other specific forms than those which have been established here without departing from the scope and essential characteristics of the invention. The present modalities must, therefore, be considered in all aspects as illustrative and not restrictive.
    权利要求:
    Claims (10)
    [0001]
    1. Device for flexing a flap (100) which is attached to a sealed container, the device comprising: a reinforcement (20) with a contact surface at a first end (21), the reinforcement (20) including an elongated axial length ; a contact member (30) that is movable along the axial length of the reinforcement (20); a support (40) which is separated from each other between the reinforcement (20) and the contact member (30), and which extends around the reinforcement (20); lever arms (50); characterized by the fact that: the contact member (30) comprising a circumferential tapered section (33); the lever arms (50) are positioned around the reinforcement (20) and each includes an intermediate section that is pivotally attached to the support (40), each of the lever arms (50) including a first end (51) with an angled contact surface (60) and a second opposite end (52) with a bearing (54) that makes contact against the tapered section (33) of the contact member (30), the first and second ends (51, 52) being on opposite sides of the middle section; each of the lever arms (50) configured to pivot around the intermediate section during the movement of the contact member (30) along the axial length of the reinforcement (20) between a first position with the first ends (51) radially spaced away from a first end (21) of the reinforcement (20) and a second position with the first ends (51) in closer proximity to the first end of the reinforcement (20).
    [0002]
    2. Device according to claim 1, characterized in that the contact member (30) includes a central opening (32) that receives the reinforcement (20) so that the contact member (30) extends circumferentially in around the reinforcement (20).
    [0003]
    Device according to claim 1, characterized in that the tapered section (33) of the contact member (30) is at an axial end of the contact member (30).
    [0004]
    4. Device according to claim 1, characterized in that each of the angled contact surfaces (60) includes a variable width with a point (61) that is narrower than the foot section, the point (61) being closer to the reinforcement (20) than to the foot section.
    [0005]
    5. Device for flexing a flap (100) which is attached to a sealed container, the device comprising: an elongated reinforcement (20) with a first end (21) with a contact surface; a contact member (30) that is movable along a length of the reinforcement (20), the contact member (30) comprising a circumferential tapered section (33); a support (40) extending around the reinforcement (20); lever arms (50) which are pivotally attached to the support (40); characterized by the fact that: the lever arms (50) extend circumferentially around the reinforcement (20), each of the lever arms (50) including a pivot connection, a wedge (60) on a first side of the connection pivot, and a bearing (54) positioned on a second side opposite the pivot connection; the device being movable between a first position with the contact member (30) in a first axial location in relation to the reinforcement (20) and each of the lever arms (50) in a first pivot orientation with the bearings (54) in contact with the tapered section (33) and the wedges (60) located radially away from the reinforcement (20), and a second position with the contact member (30) in a second axial location different from the reinforcement (20) and each of the lever arms (50) in a second pivot orientation with the bearings (54) in greater contact along the tapered section (33) and the wedges (60) located radially in greater proximity to the reinforcement (20 ).
    [0006]
    Device according to claim 5, characterized in that the wedge (60) is positioned at a first end (51) of each of the lever arms (50).
    [0007]
    7. Method for flexing a flap (100) that is attached to a sealed container, the method comprising: contacting a reinforcement (20) against the flap (100) with one end of the flap (100) extending outward beyond the reinforcement ( 20); positioning the lever arms (50) circumferentially around the reinforcement (20) and around the flap (100); characterized by the fact that: while the reinforcement (20) is in contact with the flap (100), move the tapered contact member (30) axially along the reinforcement (20) and pivot each of the plurality of lever arms ( 50) with a first end (51) of the lever arms (50) moving radially inward in the direction of the reinforcement (20) and a second end (52) of the lever arms (50) remaining in contact with the contact member (30) tapered and moving radially outward from the reinforcement (20); move at least one wedge (60) positioned at the first end (51) of each lever arm (50) under the end of the flap (100) extending out of the reinforcement (20) and flex the flap (100) while the reinforcement (20) remains in contact against the flap (100).
    [0008]
    Method according to claim 7, characterized in that it additionally comprises sliding a bearing member (54) on the second end (52) of each of the arms (50) along a tapered contact member (30) while moving at least one wedge (60) under the end of the flap (100).
    [0009]
    Method according to claim 7, characterized in that it further comprises moving the axially tapered contact member (30) along the reinforcement (20) and sliding bearing members (54) at second ends (52) of each one of the arms (50) from a first axial position along the tapered contact member (30) which includes a smaller width to a second axial position along the tapered contact member (30) which includes a greater width.
    [0010]
    Method according to claim 7, characterized in that it additionally comprises aligning the wedges (60) on the first end (51) of each lever arm (50) axially with the end of the reinforcement (20) before move the tapered contact member (30) axially along the reinforcement (20).
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    US20190264852A1|2019-08-29|Cam clamp
    US2264349A|1941-12-02|Handle for pails
    同族专利:
    公开号 | 公开日
    EP2958710A1|2015-12-30|
    US10065232B2|2018-09-04|
    EP2958710B1|2017-08-16|
    CA2905911C|2017-11-28|
    EP2958710A4|2016-06-01|
    CN105246650B|2017-06-09|
    US20160038992A1|2016-02-11|
    WO2014150705A1|2014-09-25|
    CN105246650A|2016-01-13|
    CA2905911A1|2014-09-25|
    BR112015022695A2|2017-07-18|
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    法律状态:
    2018-11-13| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-03-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-08| B09A| Decision: intention to grant|
    2021-02-02| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/03/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201361788594P| true| 2013-03-15|2013-03-15|
    US61/788594|2013-03-15|
    PCT/US2014/024033|WO2014150705A1|2013-03-15|2014-03-12|Devices and methods for bending a tab on a container|
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