• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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    • 专利摘要:
    EDGE GUARD. An edge guard (12) for mounting an end (16) of a ground penetrating tool and protecting an edge (18) of the end is described. The edge guard may include a tip (20) configured to extend forward from the edge of the end of the ground engaging tool. The edge protector may also include a first mounting leg (24) extending rearwardly from the tip. Additionally, the edge guard may include a second mounting leg (26) extending rearwardly from the tip and spaced from the first mounting leg by a recess (28) configured to receive the end of the ground engaging tool between the first. mounting leg and the second mounting leg. The first mounting leg may include a latch cavity (88) configured to house a latch (64) such that the latch is sandwiched between the first mounting leg and the end of the ground engaging tool.
    公开号:BR112014014200B1
    申请号:R112014014200-9
    申请日:2012-12-11
    公开日:2021-05-25
    发明作者:Murray A. Smith；Craig Harder；James Robert Lahood
    申请人:Caterpillar Inc.；
    IPC主号:
    专利说明:

    technical field
    [001] The present disclosure relates to ground-penetrating tools, and more particularly, to protect the edges of ground-penetrating tools. Background
    [002] Many machines include ground-penetrating tools for performing tasks such as digging, plowing, tearing, carrying, and/or other excavating and similar tasks. Such ground-penetrating tools often include one or more ends with edges on them. For example, digging buckets often include ends with ledges on them. If such ends are unprotected, in contact with soil, rock and other materials, they can damage or wear the edges of the ends. Repairing or replacing the end of such a ground penetrating tool, due to edge wear or damage, may involve significant expense. Thus, many ground-penetrating tools include removable edge protectors mounted on their ends to protect the edge of the edge from contact with soil, rock, and other materials.
    [003] For example, US Patent Application Publication No. 2010/0162594 to Bierwith ("the '594 application") discloses an energy-powered blade with a cover attached to its end. The cover of the '594 order includes an opening that lines up with an opening in a portion ahead of the end on the power-driven blade. A nut fits into the opening in the front portion of the end, and a screw extends through the opening in the cap on the nut to secure the cap to the end.
    [004] Although the '594 application discloses a cover mounted on a leading edge of an end on an energy-powered shovel, some disadvantages may persist. For example, the configuration of the arrangements used to secure the cover to the front end portion may be conducive to losing some retaining tool. Specifically, if the screw used to hold the cover to the extreme works if loose, it could separate from the power-driven blade and get lost.
    [005] The described system can help to solve one or more of the above problems. summary
    [006] One disclosed embodiment relates to an edge protector for mounting on one end of a ground penetrating tool and protecting an edge of the end. The edge guard may include a tip configured to extend forward from the edge of the end of the ground engaging tool. The edge protector may also include a first mounting leg extending backwards from the tip. Additionally, the edge guard may include a second mounting leg extending rearwardly from the tip and spaced from the first mounting leg by a recess configured to receive the end of the ground engaging tool, between the first mounting leg and the second mounting leg. The first mounting leg may include a locking cavity configured to house a latch such that the latch is sandwiched between the first mounting leg and the end of the ground engaging tool.
    [007] The disclosure also refers to an edge protector for mounting on one end of a ground penetrating tool and protecting an edge of the end. The edge protector can include a tip configured to extend forward from the edge. The edge protector may also include a first mounting leg extending backwards from the tip. The first mounting leg may include a locking protrusion extending outwardly from an outer surface of the second mounting leg and a locking cavity configured to receive an internal latch from the locking lug.
    [008] The description also refers to a ground penetration tool arrangement. The ground engaging tool arrangement may include an edge of a ground engaging tool, the end having an edge. The ground penetrating tool arrangement may also include an end mounted edge protector. The edge protector can include a slant extending to the front of the edge. The edge protector may also include a first mounting leg extending backwards from the adjacent tip of a first side of the end.
    [009] In addition, the edge guard may include a second mounting leg extending backwards from the tip and away from the first mounting leg by a recess configured to receive the end of the ground-engaging tool, between the first mounting leg. mounting and the second mounting leg. The second mounting leg may include a locking cavity configured to house a latch such that the latch is sandwiched between the second mounting leg and the end of the ground engaging tool. Brief description of the drawings
    [010] Figure 1 is a perspective view of an embodiment of a ground penetrating tool arrangement according to the present disclosure;
    [011] Figure 2 is a front perspective view of an embodiment of an edge protector according to the present disclosure;
    [012] Figure 3 is a rear, perspective view of an upper side of the edge protector shown in Figure 2;
    [013] Figure 4 is a rear, perspective view of an underside of the edge protector shown in Figure 2;
    [014] Figure 5 is a perspective view of an embodiment of a pin according to the present disclosure;
    [015] Figure 6 is a perspective view of an embodiment of a retaining bush according to the present disclosure;
    [016] Figures 7A-7C are perspective views from different angles of an embodiment of a latch according to the present disclosure;
    [017] Figure 8 is an exploded perspective view of an embodiment of a ground penetrating tool arrangement, in accordance with the present disclosure;
    [018] Figure 9 is a view of an embodiment of a ground penetrating tool arrangement in accordance with the present disclosure from a rear side;
    [019] Figure 10A is a cross-sectional view of an embodiment of an edge protector, in accordance with the present disclosure, mounted on an edge of a ground penetrating tool, showing an embodiment of the retaining components used to secure the edge guard to the extreme;
    [020] Figure 10B is an enlarged view of the portion of Figure 10A contained in rectangle 10B; and
    [021] Figure 10C is an enlarged view of the portion of figure 10B contained in the rectangle of 10C. Detailed Description
    [022] Figure 1 shows an arrangement of ground engagement tool 10 using a plurality of edge protectors 12 in accordance with the present disclosure. The ground engaging tool arrangement 10 may include an end 16 having an edge 18. End 16 may be part of any type of ground engaging tool. For example, end 16 could be part of a digging bucket.
    [023] Each edge protector 12 can be configured to mount to end 16 and protect edge 18 thereof. To that end, each edge guard 12 may include a tip 20 that extends forward from the edge guards 18. As used herein, the term "forward" generally refers to the direction in which edge 18 is directed. , and the term “backward” generally refers to the opposite direction. Figures 2-4, 8, 9, and 10A-C show an embodiment of an edge protector of the ground digging tool 12 in greater detail.
    [024] The tip 20 of each edge protector 12 can have various shapes. As shown in Figure 2, in some embodiments, the tip 20 may taper as it extends forward. For example, as best shown in Figures 8 and 10A, an upper surface 30 of tip 20 may slope downward as it extends forward. In the embodiment shown in the drawings, a lower surface 32 of tip 20 may extend generally straight forward. Alternatively, the bottom surface 32 can be angled up or down as it extends forward. At its front end, the tip 20 may have an edge 22 extending across at least a portion of a width of an edge protector 12.
    [025] In addition to tip 20, edge guard 12 may include various other structures. For example, edge guard 12 may include a mounting leg 24 and a mounting leg 26, both extending rearwardly from the tip 20. As best shown in Figures 8, 9 and 10A, the mounting legs 24, 26 can be spaced apart by a recess 28 configured to receive a front end of end 16 including edge 18. Mounting leg 24 may have an inner surface 48, adjacent recess 28, and an outer surface 50, opposite the recess 28. Similarly, mounting leg 26 may have an inner surface 52, adjacent recess 28, and an outer surface 54, opposite recess 28. Adjacent to the front end of recess 28, edge guard 12 may include a wall 46 extending between the mounting legs 24, 26. The mounting legs 24, 26 and the tip 20 can be engaged with one another in various ways. In some embodiments, the mounting legs 24, 26 and point 20 may be integrally formed with one another, such as by molding or forging them together, or by machining from a piece of material. Edge protector 12 can be constructed from a variety of materials. In some embodiments, edge guard 12 can be constructed of metal, such as steel or iron.
    [026] The mounting legs 24, 26 can have various shapes. The mounting leg 24, 26 can either extend generally straight back from the tip 20, or a mounting leg 24, 26 can have one or more portions that slope upwards or downwards. As best shown in Figures 8, 9 and 10A, some embodiments of edge guard 12 may have mounting leg 26 extending generally straight back. Mounting leg 24, on the other hand, may have a front portion 34 that slopes upward as it extends back from the tip 20, and a rear portion 36 that extends generally straight back and parallel. to the mounting leg 26. As best shown in Figures 8 and 10A, these shapes of mounting legs 24, 26 can mimic the shapes of an upper surface 38 and a lower surface 40 of the end 16, respectively. 26, the lower surface 40 of end 16 may substantially extend straight back. On the other hand, similar to mounting leg 24, upper surface 38 may have a front portion 42 that slopes upwards as it extends rearward, as well as a rear portion 44 that substantially extends straight back. . The mounting legs 24, 26 may have various widths, and their widths may or may not vary as they extend backwards from the tip 20. As best shown in Figures 2-4, in some embodiments, the mounting legs 24 26 may both maintain substantially the same width in accordance with a trailing end of point 20 as they extend rearwardly from point 20.
    [027] The edge protector 12 may have various configurations on the sides of the recess 28. As best shown in figures 2-4, in some embodiments, the spaces between the mounting legs 24, 26 on the sides of the recess 28, may be completely open. As shown in Figure 1, this can allow end 16 to extend laterally out of recess 28 when a portion of end 16 is disposed within recess 28.
    [028] Edge guard 12 may have various arrangements for transferring applied forces from edge guard 12 to end 16. As best understood, with reference to Figure 10A, wall 46 at the front end of recess 28 may serve to transfer forces back to edge guard 12 through edge 18 contact of end 16. Inner surface 48 of mounting leg 24 can serve to transfer forces downward from edge guard 12 to end 16 through upper surface contact 38 of the end 16. Likewise, the projections 56, 58 on the inner surface 52 of the mounting leg 26 can serve to transfer forces upwardly from the edge guard 12 to the end 16 through lower surface contact. 40 from the end 16.
    [029] A ground engaging tool arrangement 10 may include various arrangements for securing edge guard 12 to end 16. In some embodiments, ground engaging tool arrangement 10 may utilize pins 62 (shown in Figures 5, 8, 9, and 10A-C), latches 64 (shown in figures 7A-7C, 8, and 10A-C), and retaining bushings 66 (shown in figures 6, 8, and 10A-C). The ground penetrating tool arrangement 10 may have various arrangements for engaging these components to end 16 and edge guard 12.
    [030] In some embodiments, end 16 may include passages 68 in which pins 62 may be housed. As best shown in Figure 10A, passageways 68 may extend from upper surface 38 to lower surface 40 of end 16. Each passageway 68 may have a first end 70 and a second end 72 of different cross-sectional sizes. For example, end 72 may have a larger cross-sectional size than end 70. Where ends 70, 72 meet, each passage 68 may have a shoulder 74.
    [031] Each pin 62 can be configured to seat within one of the passages 68. In some embodiments, each pin 62 can have an end 76 with a larger cross-sectional size than the other end 78. In such embodiments, each pin 62 may have a shoulder 80 between end 76 and end 78. End 76 may have a cross section that fits within end 70 of passage 68, and end 78 may have a cross section that fits within the end. 72 of passage 68. Accordingly, pin 62 can seat within passage 68 with ends 76, 78 disposed within ends 70, 72, respectively, of passage 68 and shoulders 80, 74 contacting each other. In some embodiments, end 76 of pin 62 may be larger than end 70 of passage 68, such that end 76 extends outward from end 70 of passage 68. Likewise, end 78 of pin 62 it may be longer than end 72 of passage 68 such that end 78 extends outside end 72 of passage 68.
    [032] In addition to the above features, each pin 62 can include a number of other features. As shown in Figure 5, pin 62 may include a slot 86 extending circumferentially around end 76. Slot 86 may provide a convenient means for removing pin 62 from passage 68 by inserting the end. of a lever-type tool into slot 86 and forcing it. Additionally, the outermost portion of the end 76 of the pin 68 may include a frusto-conical boss 82 for engaging one of the latches 64, and an outwardly facing shoulder 84 at the base of the boss 82.
    [033] Arrangements for lock housings 64 may be included in edge guard 12. For example, as best shown in figures 4 and 10A-C, edge guard 12 may include locking cavities 88 for lock housings 64 In some embodiments, locking recesses 88 may be formed in the mounting leg 24 adjacent to the inner surface 48 thereof. As best shown in Figures 2 and 10A-C, edge protector 12 may include a locking protrusion 90 outside each locking cavity 88. In the example shown in the figures, locking protrusion 90 may extend outwardly from the outer surface 50 of mounting leg 24.
    [034] The edge guard 12 may have various numbers and/or arrangements of locking cavities 88 and locking protrusions 90. As shown in the figures, in some embodiments, the edge guard 12 may include two locking cavities 88 and two locking lugs 90 laterally spaced from one another. The locking recesses 88 and the locking projections 90 can be laterally spaced from each other by approximately the same distance as the two passages 68 at the end 16, such that the locking recesses 88 can substantially align with these passages 68 and with the pins 62 placed therein.
    [035] The locking cavities 88 can have various configurations. In some embodiments, each locking cavity 88 can be configured to be placed between one of the locks 64, between the mounting leg 24 and the end 16. For example, as best shown in Figures 10B and 10C, the locking cavity 88 can include an inner surface 92 that is on one side of latch 64 opposite end 16 when end 16 is disposed in recess 28. Inner surface 92 may have various configurations. In some embodiments, the inner surface 92 may include a frusto-conical portion 94 that tapers inwardly as it extends away from the recess 28. The frusto-conical portion 94 of the inner surface 92 may extend circumferentially at around and concentric, with a rotational locking axis 96. In some embodiments, the troco-conical portion 94 of the inner surface 92 may extend only partially around the rotational locking axis 96. For example, as best seen in Figure 4, the frusto-conical portion 94 of the inner surface 92 may extend around the front and sides, but not the rear, of the rotational locking axis 96. Adjacent to the outer circumferential ends of the frusto-portion. tapered 94 of the inner surface 92, each locking cavity 88 may include radially extending lugs 60, one of which can be seen for each locking cavity 88 in the m view. shown in figure 4.
    [036] On the rear side of the rotational locking axis 96 each locking cavity 88 can be opened into a groove 98, which extends rearwardly from the locking cavity 88 along the inner surface 48 of the leg. mounting 24. Each slot 98 may have a cross-section configured to allow passage of some or all of a pin 62 that extends outwardly from the top surface 38 of end 16. For example, as best seen in Figure 9, each slot 98 may have an outer portion configured to allow passage of the frusto-conical projection 82 of the pin 62, and each slot 98 may have a lower portion configured to allow the passage of part of the pin 62 into the frusto-conical projection 82 .
    [037] As best shown in Figure 3, the edge protector 12 may have similar slots 100 disposed on the inner surface 52 of the mounting leg 26. Each slot 100 may have a cross-section configured to allow passage of a portion of each. pin 62 projecting outwardly from the lower surface 40 of end 16. Within a front end of each slot 100, edge protector 12 may include a protrusion 102 configured to contact end 78 of pin 62. Each protrusion 102 may have a size and shape similar to the end 78 of the pin 62. For example, each protrusion 102 may have a circular shape with a diameter approximately equal to the end 78 of the pin 62. The grooves 100 may extend substantially parallel to the grooves 98, and the protrusions 102 may be substantially aligned with the rotational locking axis 96.
    [038] Locks 64 and retaining bushes 66 can have various configurations. In some embodiments, the latches 64 and retaining bushes 66 may be configured to seat within inner surfaces 92 of the interlock cavities 88 so as to allow the latches 64 to rotate at least partially about a geometric axis of lock rotation 96. As best shown in Figures 10B and 10C, the retaining bush 66 can seat directly against the inner surface 92 of the locking cavity 88, and the lock 64 can seat against the retaining bush 66.
    [039] As best shown in Figure 6, the retainer bush 66 may include a skirt 104 that extends around an axis of the retainer 106. The skirt 104 may extend only partially around the axis of the retainer 106. In some embodiments, skirt 104 may extend approximately the same angular amount about the geometric axis of retainer 106 as inner surface 92 of locking cavity 88 extends about rotational locking axis 96.
    [040] The retaining bush 66 can be configured to mate with the inner surface 92 of the locking cavity 88. As shown in Figures 8 and 10C, the retaining bush 66 can include an outer surface 108 with a frusto-conical portion. 110 configured to mate with the frusto-conical portion 94 of inner surface 92 of the locking cavity 88. When the retaining bush 66 is disposed within the locking cavity 88 with the frusto-conical portion 110 of the outer surface 108 coupled to the portion. frusto-conical axis 94 of the inner surface 92, the axis of the retainer 106 may coincide with the axis of rotation lock 96. The retainer bush 66 and the retainer cavity 88 may also include provisions for retaining the retainer bush 66 inside the locking cavity 88. For example, as best shown in Figure 10C, adjacent to the lower end of the frusto-conical portion 110, the outer surface 108 of the retaining bush 66 may include a circumferential protrusion 112 which engages with a circumferential recess 114 formed in the inner surface 92 of the locking cavity 88. The retaining bush 66 and the locking cavity 88 may also mate with each other so as to substantially prevent rotation. of the retaining bush 66 about the rotational locking axis 96. For example, lugs 60 extending radially adjacent to the circumferential outer ends of the inner surface 92 of the locking cavity 88 may be in contact with the circumferential outer ends of the skirt 104 of the retaining bush 66.
    [041] As best shown in Figures 6 and 10C, the retaining bush 66 may include an inner surface 116 opposite the outer surface 108. The inner surface 116 may include a frusto-conical portion 118 extending circumferentially around and concentrically with the axis of the retainer 106. Accordingly, the frusto-conical portion 118 of the inner surface 116 may extend circumferentially around and concentric with the axis of rotational locking 96 when the retaining bush 66 is installed in the locking cavity 88.
    [042] In some embodiments, the retainer bush 66 may include one or more retainers for engagement with corresponding latch retainers 64. For example, as best seen in Figure 6, the bush retainer 66 may include retainer projections 130 extending radially inwardly of the inner surface 116. The retaining projections 130 can be of various shapes. In some embodiments, each of the retaining projections 130 may include a convex curved surface, such as a constant radius surface, that protrudes radially inwardly from the inner surface 116. The retaining projections 130 may be located at various positions on the surface. the retainer bush 66. In some embodiments, the retainer projections 130 may be spaced approximately 180 degrees apart about the geometric axis of the retainer 106.
    [043] Latch 64 may be configured to mate with inner surface 116 of retainer bush 66. For example, as best shown in Figures 7A and 10C, latch 64 may include a skirt 120 with an outer surface 122 having a frusto-conical portion 124 of substantially the same profile as frusto-conical portion 118 of inner surface 116 of retaining bush 66. frusto-conical portion 124 of outer surface 122 may be concentric with and extend circumferentially around of a locking axis 126. The skirt 120 and outer surface 122 may extend only partially about the axis of the latch 126. For example, the skirt 120 and the outer surface 122 may extend about the axis of the latch 126, at substantially the same angular amount as the skirt 104 of the retainer bush 66 extending about the geometric axis of the retainer 106, and that the inner surface 92 of the latch cavity 88 extends. about the rotational locking axis 96. With the skirt 120 and the outer surface 122 of the lock 64 so configured, the lock 64 can be seated within the retaining bush 66 with the frusto-conical portion 124 of the outer surface 122 coupled to the tro-conical portion 118 of the inner surface 116. When the latch 64 is then positioned within the retainer bush 66, the axis of the latch 126 may coincide with the axis of the retainer 106 and the axis of rotation lock 96 .
    [044] The latch 64 may have means for engaging the retaining projections 130 of the retaining bush 66 to releasably secure the latch 64 in certain positions about the rotational locking axis 96. For example, as best seen in Figures 6 and 7A-7C, latch 64 may include retaining recesses 132 extending radially inwardly from outer surface 122 of skirt 120. Retaining recesses 132 may be shaped to mate with retaining projections 130 In the embodiment shown in the figures, the retaining recesses 132 may include a concave curved surface, such as a curved surface of constant radius, extending radially inward from the frusto-conical portion 124 of the outer surface 122. retaining recesses 132 can be spaced approximately the same distance apart from each other as retaining projections 130. Thus, when retaining projections 130 are spaced apart at approximately 180 degrees from each other, the retaining recesses 132 may also be spaced about 180 degrees from each other. Accordingly, the latch 64 can be positioned on the retaining bush 66 with the frusto-conical portion 124 of the outer surface 122 seated against the frusto-conical portion 118 of the inner surface 116 of the retaining bush 66 and the retaining projections 130 extending therein. of the retaining recesses 132.
    [045] Latch 64 and retainer bush 66 can be configured to allow one or both retainer recesses 132 and retainer projections 130 to deflect to disengage from each other. For example, one or both of the retaining recesses 132 and the retaining projections 130 can be constructed of a flexible material, including, but not limited to, a plastic material or an elastomeric material. In some embodiments, bushing retainer 66 can be constructed entirely of such flexible material.
    [046] In some embodiments, latch 64 and/or bush retainer 66 may include means to axially secure latch 64 within retainer bush 66 and therefore within locking cavity 88. For example, as best shown in Figures 6, 7A, and 10C, retaining bush 66 may include an end 128 extending radially inwardly adjacent an inner end of inner surface 116. Skirt 120 of latch 64 may be sandwiched between a frusto-conical portion 118 of inner surface 116 and end 128.
    [047] Each latch 64 may also include means for receiving at least a portion of one of the pins 62 extending from end 16. For example, as best shown in Figures 7A and 10C, latch 64 may include a latch groove 134 extending into skirt 120. Locking groove 134 may have an open end 136, between the outer circumferential ends of skirt 120, and a closed end 138, adjacent a middle portion of skirt 120. In some embodiments, the locking groove 134 may be sized and shaped such that it can receive the frusto-conical protrusion 82 of one of the pins 62. This may include the skirt 120 having an inner surface 140 with a frusto-conical portion 142 disposed adjacent the closed end 138 of the locking groove 134 and configured to mate with the frusto-conical boss 82.
    [048] As best shown in Figures 7A-7C, in addition to skirt 120 and latch groove 134, latch 64 may include a head 144. Head 144 may be attached to skirt 120 adjacent to the narrower end of the trunk portion. - tapered 124 of the outer surface 122 of the skirt 120. As best shown in Figure 7A, the head 144 may include a wall 146 extending through the narrower end of the skirt 120 adjacent to one side of the locking groove 134. In some embodiments, the wall 146 may completely enclose the side of locking groove 134 adjacent the narrower end of skirt 120. As best shown in Figures 7B and 7C, the side of head 144 opposite locking groove 134 may include a projection 148 extending therefrom. wall 146 distant from skirt 120 along interlocking axis 126. Projection 148 may include a substantially cylindrical shaped outer surface 150 extending around the entire interlocking axis. to 126, and a tab 152 extending radially outwardly with respect to the locking axis 126. In some embodiments, the lock 126 may extend transverse to the direction that the locking groove 134 extends from its open end. 136 to its closed end 138.
    [049] As noted above, the latch 64 can be installed in the retaining bush 66, and the latch cavity 88 with the frusto-conical portion 124 of the outer surface 122 of the latch 64, fitted to the frusto-conical portion 118 of the inner surface 116 of retaining bush 66 and retaining recesses 132 of latch 64, fitted to retaining projections 130 of retaining bush 66. When latch 64 is disposed in this position, open end 136 of latch groove 134 may be directed toward back and aligns with the groove 98 in the inner surface 48 of the mounting leg 24. This state may allow a portion of a pin 62, such as the trocco-conical protrusion 82, to slide freely inside or outside the locking groove 134 through open end 136 and slot 98. This can allow free sliding of edge guard 12 over or out of end 16. Consequently, this position of latch 64 can be considered an unlocked position.
    [050] The latch 64 may also have a locked position where the latch 64 is rotated about the rotational lock axis 96 to a position where the closed end 138 of the lock groove 134 is disposed adjacent to the groove 98 on the rear side of the locking cavity 88. In this state, the portion of the locking skirt 120, adjacent to the closed end 138, may make it impossible for the frusto-conical projection 82 of the pin 62 to slide into or out of the locking groove 134. edge guard 12 free sliding over or out of end 16. The locked position of latch 64 can be approximately 180 degrees from the unlocked position about the rotation lock axis 96. In the locked position, as in the unlocked position, the retaining recesses 132 of latch 64 may engage retaining projections 130 of retaining bush 66 which can releasably hold latch 64 in the locked position.
    [051] To rotate latch 64 between the unlocked position and the locked position, sufficient torque may be applied to latch 64 about rotational lock axis 96 to cause retaining projections 130 and/or retaining recesses 132 struggle and disengage from each other. Once the detents disengage from each other, the frusto-conical portion 124 of the outer surface 122 of the lock skirt 120 can slide along the frusto-conical portion 118 of the inner surface 116 of the retaining bush 66, as per the latch 64 rotates about rotational locking axis 96. Since latch 64 rotates approximately 180 degrees about rotational locking axis 96, retaining projections 130, and retaining recesses 132 may re-engage one another. to the other to releasably hold latch 64 in rotational position.
    [052] The ground penetrating tool arrangement 10 may include a plurality of rotation lock means 64 about the rotation lock axis 96. As best shown in Figures 7A-7C, the lock 64 may include a tool interface 154 at the lock head 144 to the rotation lock 64 about the lock axis 126 and thus the rotation lock axis 96. The tool interface 154 may include any type of features configured to be engaged by a tool to apply torque to latch 64 about latch axis 126 and rotation lock axis 96. For example, as shown in the figures, tool interface 154 may include a recess with a cross section configured to engage a drive tool square.
    [053] As best shown in Figures 2-4, 8, and 10A-10C, edge guard 12 may include a tool opening 156 associated with each lock cavity 88 to provide access to tool interface 154 of lock 64 Each tool opening 156 may extend from the outer surface 50 of the mounting leg 24, through one of the locking lugs 90, to a locking cavity 88. As best shown in Figures 10A-C, when each lock 64 is seated within a locking cavity 88, the head 144 of the lock 64 may extend, at least partially, through the associated tool opening 156 towards the outer surface 50.
    [054] Each tool opening 156 can have multiple shapes. As best shown in Figure 2, in some embodiments, each tool opening 156 may include a pair of lugs 158 spaced approximately 180 degrees apart about the rotational locking axis 96. The lugs 158 may be positioned within the path of rotation of tab 152 of latch 64 to limit rotation of latch 64 to approximately 180 degrees about rotational locking axis 96.
    [055] The arrangement of ground penetrating tool 10, edge guard 12, and the various other components discussed above are not limited to the configurations shown in the figures. For example, edge protector 12 may include a different number of locking cavities 88, and array 10 may employ a different number of pins 62, latches 64, and retaining bushes 66. Additionally, unlike pins 62, the ground digging tool arrangement 10, may employ projections integrally attached to end 16. In addition, edge guard 12, locking recesses 88, latches 64, and retaining bushes 66 may have different configurations than those shown in figures and discussed above. Industrial Applicability
    [056] The ground digging tool arrangement 10 and the edge guard 12 can be used in various excavations and similar tasks. When mounted on end 16, edge guard 12 can protect edge 18 of end 16 from impact with soil, rock, and other substances encountered in such tasks. This can extend the life of end 16 and edge 18 of the end.
    [057] The described configurations of the ground penetrating tool arrangement 10 may allow immediate attachment of edge guard 12 to end 16 and removal of edge guard 12 from end 16 for work and/or replacement. In preparation for attaching edge protector 12 to end 16, pins 62 may be inserted into passages 68 at end 16 with ends 76 of pins 62 protruding from upper surface 38 of end 16 and ends 78 protruding from lower surface 40 of end 16. Additionally, retaining bushings 66 and latches 64 can be installed in the interlock cavities 88 with the latches 64 in their unlocked position. As discussed above, with the latches 64 in their unlocked positions, the open end 136 of the latch slots 134 can be directed rearwardly so that it mate with the slots 98 in the mounting leg 24.
    [058] With pins 62 installed in end 16 and latches 64 in their unlocked positions, edge guard 12 can be slid back to slide end 16 into recess 28 between mounting legs 24, 26. This may involve the ends 78 of the pins 62 slide through the slots 100 in the mounting leg 26. When the pins 62 are fully inserted into the slots 100, the ends 78 of the pins 62 can rest on the protrusions 102 on the front ends of the slots 100. Simultaneously , the frusto-conical protrusions 82, from the opposite ends 76 of the pins 62, can slide through the grooves 98 into the locking grooves 134. Figures 10A-10C illustrate the edge guard 12 slid over the end 16 with the trunk protrusions - tapered 82 of the pins 62 arranged in grooves 134 of the latches 64 and the latches positioned in the unlocked position.
    [059] From this state, edge protector 12 can be releasably secured to end 16 by rotatable locks 64 about lock axis of rotation 96 to rotate closed end 138 of lock groove 134 behind the protrusion frusto-conical 82 of pin 62, capturing pin 62 in latch 64 and in latch cavity 88, preventing edge protector from sliding forward off end 16. Edge protector 12 can be removed from end 16 via the latches turn 64 back to their unlocked positions shown in figures 10A-10C and sliding edge guard 12 forward off end 16.
    [060] When the edge guard 12 is installed to the end 16, the retaining tool of the ground engaging tool arrangement 10 can be securely captured by the mounting legs 24, 26 and the end 16. For example, the latch 64 it can be sandwiched between the inner surfaces 92 of the locking cavities 88 of the mounting leg 24 and the upper surface 38 of the end 16. This can help ensure that the latches 64 do not work loose and get lost. The inclusion of locking protrusions 90 on edge guard 12 can facilitate the capture of latches 64 between mounting leg 24 and end 16. Additionally, in some embodiments, pins 62, latches 64, and retaining bushes 66 may be constructed of lengths such that their collective length, when mounted, is approximately the same as the distance between each protrusion 102 in the groove 100 of the mounting leg 26 and the inner surface 92 of the locking cavity 88. As a result, pins 62, latches 64, and retaining bush 66 can be held firmly between mounting legs 24 and 26. This can help ensure these components remain in place and keep edge protector 12 to end 16, even if the end 16 and edge guard 12 wear out.
    [061] Other embodiments of the systems described will be evident to those skilled in the art from consideration of the specification and practice of the systems described herein. The specification and examples are intended to be regarded as examples only, with the true scope of disclosure being indicated by the following claims and their equivalents.
    权利要求:
    Claims (6)
    [0001]
    1. Edge protector, for mounting on an end (16) of a ground penetration tool, and protection of an edge (18) of the end (16), said edge protector (12), characterized in that it comprises: - a tip (20) configured to extend forwardly from the edge of the end (16) of the ground engaging tool; - a first mounting leg (24) extending backwards from the tip (20); and - a second mounting leg (26) extending rearwardly from the tip (20) and spaced from the first mounting leg (24) by a recess (28) configured to receive the end (16) of the ground engaging tool. between the first mounting leg (24) and the second mounting leg (26); and where the first mounting leg (24) includes a pair of interlocking cavities (88) laterally spaced from one another, each interlocking cavity (88) being configured to house a latch (64) such that the latch is sandwiched. between the first mounting leg (24) and the end (16) of the ground engaging tool, and a pair of first grooves (98), each first groove (98) extending from an associated pair of locking cavities (88) rear along an inner surface (48) of the first mounting leg (24), and the second mounting leg (26) including a pair of second slots (100) disposed on an inner surface (52) of the second mounting leg (26) and extending parallel to the pair of first slots (98).
    [0002]
    2. Edge protector according to claim 1, characterized in that each locking cavity (88) includes a frusto-conical surface (94) for sandwiching the lock between the first mounting leg (24) and the end ( 16) of the ground engaging tool, the frusto-conical surface (94) tapering inward as it extends away from the recess towards an outer surface (50) of the first mounting leg (24).
    [0003]
    3. Edge protector according to claim 2, characterized in that the frusto-conical surface (94) extends around a geometric axis of lock rotation (96) extending transversely to the posterior direction in which the first leg mounting bracket (24) extends.
    [0004]
    4. Edge protector according to claim 3, characterized in that it further comprises a pair of protrusions (102) disposed within the front ends of the pair of second grooves (100), each protrusion (102) being aligned with the rotational locking axis (96).
    [0005]
    5. Edge protector according to claim 1, characterized in that the first mounting leg (24) includes a pair of tool openings (156), each tool opening (156) extending from the outer surface ( 50) from the first mounting leg (24) to one of the pair of locking cavities (88).
    [0006]
    6. Edge protector according to any one of claims 1 to 5, characterized in that each first groove (98) has an outer portion configured to allow the passage of a frusto-conical protrusion (82) of a pin ( 62) extending outwardly from an upper surface (38) of the end (16), and a lower portion configured to allow passage of a portion of the pin (62) into the frusto-conical protrusion (82).
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    同族专利:
    公开号 | 公开日
    EP2791425A1|2014-10-22|
    RU2607814C2|2017-01-20|
    WO2013090254A1|2013-06-20|
    AU2012352504B2|2017-04-06|
    NZ625115A|2016-06-24|
    US8959807B2|2015-02-24|
    RU2014128665A|2016-02-10|
    BR112014014200A2|2017-06-13|
    CA2857331C|2019-02-26|
    CA2857331A1|2013-06-20|
    CN104053841A|2014-09-17|
    EP2791425B1|2016-05-18|
    AU2012352504A1|2014-06-05|
    US20130145659A1|2013-06-13|
    CN104053841B|2016-08-24|
    ZA201404158B|2015-12-23|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-25| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/12/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161570223P| true| 2011-12-13|2011-12-13|
    US61/570,223|2011-12-13|
    US13/706,681|US8959807B2|2011-12-13|2012-12-06|Edge protector for ground engaging tool assembly|
    US13/706,681|2012-12-06|
    PCT/US2012/068930|WO2013090254A1|2011-12-13|2012-12-11|Edge protector for ground engaging tool assembly|
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