Anti-rotation retainer sleeve

Abstract

A retainer sleeve with an anti-rotation feature is provided. In some embodiments, the retainer sleeve may include a body including an at least partially annular configuration that defines a retainer axis. The body may include an inner surface configured to rotatably receive an outer surface of the lock. The body may include a plurality of plates circumferentially coupled to one another about the retainer axis, a first plate of the plurality of plates including a first leg coupled to the first plate and extending away from the retainer axis and configured to contact a locking cavity of the retainer. The body may include an anti-rotation feature disposed on the first plate and extending inwardly from the inner surface toward the retainer axis, the anti-rotation feature including a locking surface configured to contact a locking skirt of the lock, the locking surface disposed at a first angle relative to a bottom end of the first plate.

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates generally to ground engaging tools, for example, to retainer sleeves with anti-rotation features. [Background technology]

[0002] Earthmoving machines, such as excavators, wheel loaders, hydraulic mining shovels, cable shovels, bucket wheels, bulldozers, and draglines, are commonly used to excavate or tear up soil and rock and / or move loose work materials from one location on a job site to another. These machines include various earthmoving implements, such as buckets and blades, for digging or moving the work materials. These implements can experience extreme wear due to the abrasion and impacts they are subjected to during earthmoving operations.

[0003] To protect these implements from wear and thereby extend the implement's life, earthmoving implements can be provided with a variety of ground-engaging tools, such as teeth, edge protectors, and other wear-resistant members, in areas where the most destructive wear and impact occurs. These ground-engaging tools are removably attached to the implement using a customized retainer system, allowing worn or damaged ground-engaging tools to be easily removed and replaced with new ones. Vibrations and loads on the implement or ground-engaging tool can cause the ground-engaging tool to move or rotate. This movement or rotation can cause the ground-engaging tool to rotate to an unlocked position, thereby disengaging the ground-engaging tool from the customized retainer system and the implement.

[0004] U.S. Patent Publication No. 2020 / 0378093 discloses a retainer sleeve for use with a lock on a ground-engaging tool, the retainer sleeve including a lock cavity having an outer surface and a detent recess. The retainer sleeve includes a skirt extending partway around a retainer axis and forming an inner surface shaped to rotatably receive the outer surface of the lock. The skirt includes a first plate, a second plate positioned proximate the first plate, and a central bend extending circumferentially about the retainer axis between the first and second plates. The retainer sleeve further includes a first leg coupled to the first plate, extending away from the retainer axis, and configured to mate with the lock cavity on the ground-engaging tool. The retainer sleeve further includes a second leg coupled to the second plate, extending away from the retainer axis, and configured to mate with the lock cavity on the ground-engaging tool.

[0005] The retainer sleeve of the present disclosure solves one or more of the above-mentioned problems and / or other problems in the art. Summary of the Invention

[0006] In some embodiments, a retainer sleeve for use with a lock for a ground engaging tool having a locking cavity includes: a body including an at least partially annular configuration defining a retainer axis, the body including an inner surface configured to rotatably receive an outer surface of the lock; a plurality of plates circumferentially coupled to one another about the retainer axis, a first plate of the plurality of plates including a first leg coupled to the first plate and extending away from the retainer axis and configured to contact the locking cavity; and an anti-rotation feature disposed on the first plate and extending inward from the inner surface toward the retainer axis, the anti-rotation feature including a locking surface configured to contact a locking skirt of the lock, the locking surface being disposed at a first angle relative to a lower end of the first plate.

[0007] In some embodiments, a retainer sleeve for use with a lock on a ground engaging tool includes a plurality of plates coupled together to form an annular shape around a retainer axis; an anti-rotation mechanism disposed on an inner surface of a first plate of the plurality of plates and extending inwardly toward the retainer axis, the anti-rotation mechanism including a locking surface configured to prevent the lock from rotating relative to the retainer axis, the locking surface being disposed at a first angle relative to a lower end of the first plate, the locking surface being substantially perpendicular to the inner surface of the first plate; and a detent protrusion extending from a side of a second plate of the plurality of plates, the second plate configured to engage a detent recess in the lock to releasably retain the lock.

[0008] In some embodiments, a retainer system for a ground engaging tool includes a lock and a retainer sleeve, the lock including a head portion having a tool interface and a locking skirt extending from the head portion and including an outer surface, the locking skirt including a sloped surface, and the retainer sleeve including a body including at least a partially annular configuration about a retainer axis, an anti-rotation feature disposed on an inner surface of the body and extending inward toward the retainer axis, the anti-rotation feature including a locking surface configured to contact the sloped surface of the locking skirt, the locking surface being disposed at a first angle relative to a bottom end of the body, the first angle substantially corresponding to the sloped surface, and a plurality of legs extending from an upper end of the body away from the retainer axis, at least two of the plurality of legs having different lengths. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 illustrates an example perspective view of a loader bucket having a plurality of ground engaging tools attached thereto as described herein. [Figure 2] FIG. 1 illustrates an example of an exploded perspective view of a tooth assembly as described herein. [Figure 3]1 shows an example cross section of a portion of a tip of a tooth assembly as described herein. [Figure 4] FIG. 1 is a top perspective view of a lock of a retainer system described herein. [Figure 5] FIG. 1 is a bottom perspective view of a lock as described herein. [Figure 6] FIG. 2 is a front perspective view of a retainer sleeve as described herein. [Figure 7] FIG. 2 is a rear perspective view of a retainer sleeve as described herein. [Figure 8] FIG. 2 is a top view of a retainer sleeve as described herein. [Figure 9] 1 is a cross-sectional view of a center tab, plate, and leg described herein. [Figure 10] FIG. 1 is a front view of a plate with an anti-rotation feature as described herein. [Figure 11] 1 is a cross-sectional view of a plate with an anti-rotation feature as described herein. [Figure 12] FIG. 1 is a top view of a lock and retainer sleeve assembly as described herein. [Figure 13] 1 is a cross-sectional view of a lock and retainer sleeve assembly as described herein. [Figure 14] FIG. 1 is a cross-sectional view of a tip, lock, and retainer sleeve assembly as described herein. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present disclosure relates to a retainer sleeve applicable to any machine that includes a removable ground-engaging tool, such as, for example, an excavator, a backhoe loader, a wheel loader, a hydraulic mining shovel, a cable shovel, a skid steer loader, a tractor, a bucket wheel, a bulldozer, and / or a dragline.

[0011] FIG. 1 is a perspective view of a loader bucket having multiple ground-engaging tools as described herein. FIG. 1 illustrates an excavator bucket assembly 100 as an exemplary implement for an earthmoving machine. The excavator bucket assembly 100 includes a bucket 102 that excavates work material in a known manner. The bucket 102 may include various ground-engaging tools. For example, the bucket 102 may include multiple tooth assemblies 104 attached to a base edge 106 of the bucket 102 as the ground-engaging tool. The tooth assemblies 104 may be secured to the bucket 102 using a retainer system as described herein. While various embodiments of the present disclosure are described in connection with a particular ground-engaging tool (e.g., tooth assembly 104), the retainer systems and retainer sleeves described herein may be applied to or used in connection with any other type of ground-engaging tool or component. Furthermore, one or more features described in connection with one embodiment may be implemented in any of the other disclosed embodiments, unless otherwise specified.

[0012] As noted above, Figure 1 is provided as an example. Other examples may differ from the example described in connection with Figure 1.

[0013] FIG. 2 is an exploded perspective view of the tooth assembly 104 described herein. The tooth assembly 104 may include an adapter 200 configured to engage with the base edge 106 of the bucket 102 or other suitable support structure of the work implement. The tooth assembly 104 may further include a ground-engaging tip 300 configured to be removably attached to the adapter 200. The tooth assembly 104 may further include a retainer system 400 configured to secure the tip 300 to the adapter 200. The tip 300 receives the majority of the impact and wear resulting from engagement with the work material and wears faster and breaks more frequently than the adapter 200. This allows multiple tips 300 to be attached to the adapter 200, worn, and replaced before the adapter 200 itself requires replacement. As described in more detail herein, various exemplary embodiments of the retainer system 400 consistent with the present disclosure can facilitate attachment of ground-engaging tools and tips 300 to and from the adapter 200 attached to the work implement.

[0014] The adapter 200 may include a first mounting leg 202 and a second mounting leg 204 defining a recess 206 therebetween for receiving the base edge 106. The adapter 200 may be secured in place on the base edge 106 by attaching the first mounting leg 202 and the second mounting leg 204 to the base edge 106 using any suitable connection method. For example, the mounting legs 202, 204 and the base edge 106 may have corresponding holes (not shown) into which any suitable fasteners, such as bolts or rivets, can be inserted to hold the adapter 200 in place. Additionally or alternatively, the mounting legs 202, 204 may be welded to corresponding top and bottom surfaces of the base edge 106. Any other connection method and / or configuration known in the art may also be used. For example, in some exemplary embodiments, the adapter 200 may be configured to secure the adapter 200 to the ground-engaging tip 300 using any of the retainer systems 400 described herein.

[0015] The adapter 200 may include a forwardly extending nose 208. The nose 208 may be configured to be received within a mounting cavity 302 (as shown in FIG. 3 ) of the tip 300. The nose 208 may be configured to support the tip 300 during use of the bucket 102 and may facilitate retaining the tip 300 on the nose 208 when bearing the load of work material.

[0016] Nose 208 may include an integral post 210 extending from each side 212, 214. Post 210 may have a variety of shapes and sizes. In one exemplary embodiment, post 210 may have a frusto-conical shape, as shown in FIG. 2. As described in more detail herein, post 210 may mate with a retainer system 400 to secure tip 300 to adapter 200.

[0017] The tip 300 may have a variety of contours. For example, the tip 300 may generally taper overall as it extends forward. The upper surface 304 of the tip 300 slopes downward as it extends forward, and the lower surface 306 of the tip 300 extends generally upward as it extends forward. Alternatively, the lower surface 306 may be generally straight or extend downward as it extends forward. At the front end of the tip 300, the tip 300 may have a wedge-shaped edge 308.

[0018] The tip 300 may be secured to the adapter 200 via a retainer system 400. The retainer system 400 may include a lock 500 and a retainer sleeve 600. The tip 300 and / or adapter 200 may have various configurations for receiving the lock 500 and the retainer sleeve 600 therein. For example, the tip 300 may include a lock cavity 310 in the side surface 312 (or in each side surface 312 of the tip 300) that receives the lock 500 and the retainer sleeve 600. The lock 500 and the retainer sleeve 600 may be located in the lock cavity 310 when assembled to the tip 300. The tip 300 may also include a lock bulge 314 extending outward from each lock cavity 310. The lock cavity 310 may include a shoulder 316 extending adjacent the circumferentially outer end of the lock cavity 310. Although the exemplary embodiment shown in FIG. 2 has lock cavities 310 and lock bulges 314 on each side 312 of tip 300, tip 300 may have a different number and / or arrangement of lock cavities 310 and lock bulges 314.

[0019] As noted above, Figure 2 is provided as an example. Other examples may differ from the example described in connection with Figure 2.

[0020] 3 is a cross-sectional view of a portion of the tip of the tooth assembly 104 shown in FIG. 2 with the lock 500 and retainer sleeve 600 disposed within the lock cavity 310 of the tip 300 described herein. The tip 300 may define a mounting cavity 302 therein that has a complementary configuration to the nose 208 of the adapter 200. The tip 300 and / or the adapter 200 may have various configurations for receiving the lock 500 and retainer sleeve 600 therein. For example, the lock 500 and retainer sleeve 600 may be positioned within the lock cavity 310 when assembled to the tip 300.

[0021] The lock 500 and retainer sleeve 600 may be configured to mount within the inner surface 318 of the lock cavity 310 to allow the lock 500 to at least partially rotate relative to the retainer sleeve 600 about a lock rotation axis 502 (not shown in FIG. 3 ). The retainer sleeve 600 may abut directly against the inner surface 318 of the lock cavity 310, or the lock 500 may abut against the inner surface 602 (shown in FIG. 7 ) of the retainer sleeve 600. At the rear of the lock cavity 310, the lock cavity 310 may open into a side slot 320 extending rearward from the lock cavity 310 along the inner surface 322 of the side edge 312. The side slot 320 may have a cross-section configured to allow at least a portion of the post 210 of the adapter 200 inserted from the rear end of the tip 300 to pass therethrough.

[0022] As noted above, Figure 3 is provided as an example. Other examples may differ from the example described in connection with Figure 3.

[0023] 4 is a top perspective view of a lock 500 of a retainer system 400 described herein. The lock 500 may include a locking skirt 504 having an outer surface 506 that may extend concentrically around a lock rotation axis 502. The locking skirt 504 may be substantially cylindrical or conical. The locking skirt 504 may include a detent recess 508 extending radially inward from the outer surface 506 of the locking skirt 504. The detent recess 508 may include a concave surface, such as a constant radius curved surface, extending radially inward from the outer surface 506.

[0024] The lock 500 may include a head portion 510 attached to the lock skirt 504 adjacent to an end of the lock skirt 504. The head portion 510 may include a wall 512 extending in a plane substantially perpendicular to the lock rotation axis 502 and penetrating the end of the lock skirt 504 adjacent the head portion 510. The head portion 510 may include a protrusion 514 extending from the lock skirt 504 along the lock rotation axis 502 away from the wall 512. The protrusion 514 may include a substantially cylindrical outer surface 516 extending around a majority of the lock rotation axis 502 and a lock tab 518 extending radially outward relative to the lock rotation axis 502. The lock 500 may include a tool interface 520 within the head portion 510 to facilitate rotation of the lock 500 about the lock rotation axis 502. The tool interface 520 may include any type of mechanism configured to engage with a tool to apply torque to the lock 500 about the lock rotation axis 502. The locking cavity 310 may provide an access opening for a tool to engage the tool interface 520 .

[0025] As noted above, Figure 4 is provided as an example. Other examples may differ from the example described in connection with Figure 4.

[0026] 5 is a bottom perspective view of a lock 500 described herein. The lock 500 may be configured to receive at least a portion of the post 210 of the adapter 200. The lock 500 may include a locking slot 522 extending within the locking skirt 504. The locking slot 522 may have an open end 524 located between two circumferential ends of the locking skirt 504 and a closed end 526 adjacent an intermediate portion of the locking skirt 504. The locking slot 522 may have a size and shape configured to allow the locking skirt 504 to receive the post 210. An inner surface 528 of the locking skirt 504 may be angled adjacent the closed end 526 of the locking slot 522 to mate with the post 210.

[0027] In some embodiments, the wall 512 may completely surround the side of the locking slot 522 closest to the head portion 510. The side of the head portion 510 opposite the locking slot 522 may include a protrusion 514 extending from the wall 512. The locking tab 518 may extend transversely to the direction in which the locking slot 522 extends from the open end 524 to the closed end 526. In some embodiments, at least one (or two) circumferential ends of the locking skirt 504 may be angled relative to a surface 530 of the locking slot 522. For example, the circumferential end of the locking skirt 504 may extend from the surface 530 at an angle 532. For example, the inner surface 528 of the locking skirt 504 may be angled at the angle 532 (e.g., to mate with the post 210). The angle 532 may be between 105 and 125 degrees.

[0028] As noted above, Figure 5 is provided as an example. Other examples may differ from the example described in connection with Figure 5.

[0029] FIG. 6 is a front perspective view of a retainer sleeve 600 described herein. Some elements shown here are commonly shared elements that are not labeled with certain reference numbers in this and other figures for clarity and readability. The retainer sleeve 600 may have an at least partially annular configuration that defines a retainer axis 604. For example, the retainer sleeve 600 may be generally "C" shaped. The retainer sleeve 600 may include a body 606 that extends along the entire "C," which may be concentric around the retainer axis 604. This allows the body 606 to extend concentrically around the lock rotation axis 502 (shown in FIGS. 4 and 5 ) when the retainer sleeve 600 is assembled with the lock 500 in the lock cavity 310. The body 606 may form an annular shape that extends partially around the retainer axis 604, or a continuous "C" shape. The body 606 may extend 180 degrees or more around the retainer axis 604. In some examples, the body 606 may extend around the retainer axis 604 at substantially the same angle as the inner surface 322 of the lock cavity 310 extends around the lock rotation axis 502. The body 606 may be configured to receive the lock 500.

[0030] The body 606 may include multiple plates, such as a first plate 608a, a second plate 608b, a third plate 608c, a fourth plate 608d, and a fifth plate 608e. In one embodiment, there may be five plates 608a-e. However, in other embodiments, there may be one, two, three, four, five, six, seven, or more plates. Each of the multiple plates 608a-e may be substantially parallel to the retainer axis 604. Alternatively, each of the multiple plates 608a-e may be angled toward or away from the retainer axis 604. The multiple plates 608a-e may form the inner surface 602 (shown pointing to the third plate 608c) or may form a portion of the inner surface 602. Each of the multiple plates 608a-e may have a flat shape or may be substantially rectangular. Alternatively, each of the plurality of plates 608a-e may have a curved shape. Each of the plurality of plates 608a-e may include lower and upper recesses to form a rectangle with concave curves at the corners of the rectangle (e.g., to relieve stress during the manufacturing and forming process of the retainer sleeve 600).

[0031] The plates (shown in FIG. 6 with the fourth plate 608d) may include a first side 610, a second side 612, a top edge 614, and a bottom edge 616, which may form the sides of the generally rectangular shape of the fourth plate 608d. Any description of the first side 610, second side 612, top edge 614, and bottom edge 616 of the fourth plate 608d may similarly be described for the first side 610, second side 612, top edge 614, and bottom edge 616 of the first plate 608a, second plate 608b, third plate 608c, and / or fifth plate 608e.

[0032] The plurality of plates 608a-e may be coupled (e.g., circumferentially) in an at least partially annular configuration (e.g., the plurality of plates 608a-e may be coupled generally in a "C" shape). For example, the first side 610 of the second plate 608b may extend from the second side 612 of the first plate 608a. The plurality of plates 608a-e may each be coupled by a central bend 618 (shown only between the fourth plate 608d and the fifth plate 608e for clarity). The central bend 618 may extend circumferentially between at least one of the plurality of plates 608a-e and to another one of the plurality of plates 608a-e. The central bend 618 may be generally bendable and extend generally parallel to the plurality of plates 608a-e and the retainer axis 604. The central flexure(s) 618 may join the multiple plates 608a-e together to form a substantially solid and / or continuous body 606 (e.g., configured around an at least partially annular retainer axis 604).

[0033] The retainer sleeve 600 may include an anti-rotation feature 620. The anti-rotation feature may be disposed on the body 606 of the retainer sleeve 600. For example, the anti-rotation feature 620 may be disposed on a first plate (shown as the fourth plate 608d in FIG. 6) of the plurality of plates 608a-e. For example, the anti-rotation feature 620 may be disposed on a plate of the plurality of plates 608a-e adjacent to two of the plurality of plates 608a-e. In other words, the anti-rotation feature 620 may be disposed on any of the plates 608b-d (e.g., not the first plate 608a or the fifth plate 608e). The anti-rotation feature 620 may be disposed on either the first plate 608a or the fifth plate 608e. The anti-rotation feature 620 may extend inward from the inner surface 602 of the body 606 toward the retainer shaft 604. Although only one anti-rotation feature 620 is shown and described herein, the retainer sleeve 600 may include multiple anti-rotation features 620 .

[0034] The anti-rotation feature 620 may include a locking surface 622. The locking surface 622 may be configured to contact the locking skirt 504 of the lock 500 (e.g., when the lock 500 rotates about the lock rotation axis 502 when the retainer sleeve 600 is assembled with the lock 500 in the lock cavity 310, as described above). The locking surface 622 may be a substantially flat surface (e.g., to prevent the lock 500 from rotating about the lock rotation axis 502 past the anti-rotation feature 620). Alternatively, the locking surface 622 may be an at least partially curved surface. The locking surface may be substantially perpendicular to the inner surface 602 of the body 606 (e.g., the fourth plate 608d). For example, the locking surface 622 may be a substantially flat surface and / or may be substantially perpendicular to the interior surface 602, thereby preventing the lock 500 from rotating about the lock rotation axis 502 via the anti-rotation mechanism 620 without applying a significant force or torque to the lock 500. The locking surface 622 may face a radial end 628 of the body 606.

[0035] The locking surface 622 may be disposed at a first angle 624 (shown in FIG. 10 ) relative to the bottom end 616 of the fourth plate 608d. The locking surface 622 may be radially disposed at a second angle 626 (shown in FIG. 8 ) relative to a radial end 628 of the body 606 and the retainer axis 604. The magnitude of the second angle 626 may substantially correspond to an amount of rotation that moves the lock 500 to the unlocked position when rotated about the lock rotation axis 502. In other words, the size of the second angle 626 may be less than an amount of rotation that moves the lock 500 to the unlocked position when rotated about the lock rotation axis 502.

[0036] The anti-rotation mechanism 620 may include a shell 630. The shell 630 may define a body of the anti-rotation mechanism 620. The shell 630 may define a cavity 632 (e.g., a hollow space) between the shell 630 and the inner surface 602. The thickness of the shell 630 may substantially correspond to the thickness of the plurality of plates 608a-e. The locking surface 622 may include a first hole 634 communicating with the cavity 632. Alternatively, the locking surface 622 may be a solid surface. The locking surface 622 may have different shapes and / or geometries. For example, as shown in FIG. 6 , the locking surface may include a first curve and a second curve extending away from the inner surface 602. The first curve and the second curve may have the same radius or different radii. The first curve and the second curve may be joined by a flat edge to form the shape of the locking surface 622. Alternatively, the locking surface 622 may not have any curves (eg, may have a rectangular or square shape).

[0037] The shell 630 of the anti-rotation mechanism 620 may have different shapes and / or geometries. For example, as shown in FIG. 6 , the shell 630 may be angled from the locking surface 622 toward the inner surface 602. In some examples, the shell 630 may include at least one curved edge 636 and at least one flat edge 638. The curved edge 636 may include one or more bends. In some examples, as shown in FIG. 6 , the curved edge 636 may include two bends. The curved edge 636 may include bends with the same radius and / or bends with different radii. The locking surface 622 may define the flat edge 638. For example, the shell 630 may have a substantially “D” shape. Other shapes and geometries of the shell 630 are also possible. For example, the shell 630 may be rectangular without the curved edge 636.

[0038] The body 606 may include one or more detent projections 640a, 640b for engaging corresponding detent recesses 508 of the lock 500. The body 606 may include detent projections 640a and 640b extending circumferentially from the first plate 608a and the fifth plate 608e. The detent projections 640a, 640b may be located at different positions on the retainer sleeve 600. For example, the detent projections 640a, 640b may be spaced approximately 180 degrees apart from each other about the retainer axis 604 at opposite ends of the “C”-shaped retainer sleeve 600.

[0039] The detent projections 640a, 640b may have various shapes. In one exemplary embodiment, each detent projection 640a, 640b may include a first detent portion 642, a second detent portion 644, and a third detent portion 646 (for clarity, only detent projection 640a is shown in FIG. 6). Alternatively, detent projections 640a, 640b may have a single portion with a constant radius of curvature. The first detent portion 642 may extend from the first plate 608a or the fifth plate 608e and have a concave shape relative to the retainer axis 604. Alternatively, the first detent portion 642 may be straight, convex, or have a varying curvature with multiple radii. The second detent portion 644 may extend from the first detent portion 642 and have a convex shape relative to the retainer axis 604. Optionally, second detent portion 644 may be straight and concave, or may have a variable curvature with multiple radii. Third detent portion 646 may extend from second detent portion 644 opposite first detent portion 642. Third detent portion 646 may be concave or convex relative to retainer axis 604 and may have a constant or varying curvature. Detent projections 640a, 640b may be spaced apart from one another at opposite circumferential ends of body 606 and may include detent ends 648 located at the ends of third detent portion 646.

[0040] The retainer sleeve 600 may include a first bend 650 extending from the bottom end 616 of each of the plurality of plates 608a-e (only the fifth plate 608e is shown for clarity). The first bend 650 may flex inwardly and extend from at least one of the plurality of plates 608a-e in a direction generally transverse to the retainer axis 604. The first bend 650 may be configured to change from a direction generally parallel to at least one of the plurality of plates 608a-e to a direction generally transverse to at least one of the plurality of plates 608a-e.

[0041] The retainer sleeve 600 may include a central tab 652 extending from at least one of the plurality of plates 608a-e (shown only near the third plate 608c for clarity). The central tab 652 may extend from the first bend 650. The central tab 652 may extend generally parallel inward from the first bend 650 toward the retainer axis 604. The central tab 652 may have a "D" shape with a straight side joined to the first bend 650 or the bottom end 616 of at least one of the plurality of plates 608a-e and a curved side opposite the straight side. The retainer sleeve 600 may include multiple central tabs 652.

[0042] The retainer sleeve 600 may include an end tab 654 (shown only near the fifth plate 608e for clarity) or multiple end tabs 654 disposed near one of the detent ends 648 and extending from the first bend 650. The end tabs 654 may extend from the lower end 616 of at least one of the multiple plates 608a-e. The end tabs 654 may extend inwardly and generally parallel from the first bend 650 toward the retainer axis 604. The end tabs 654 may include protrusions 656 extending generally parallel and circumferentially away from the central tab 652. The protrusions 656 may provide additional engagement with the locking skirt 504 of the lock 500 when the lock 500 is in the locked position. The central tabs 652 may be circumferentially disposed between the end tabs 654.

[0043] The retainer sleeve 600 may include a plurality of legs 658a-e. For example, the plurality of legs 658a-e may include a first leg 658a, a second leg 658b, a third leg 658c, a fourth leg 658d, and a fifth leg 658e. For example, each leg 658a-e may extend from a plate of the plurality of plates 608a-e. The legs 658a-e are described in more detail in connection with FIGS. 7 and 9.

[0044] As noted above, Figure 6 is provided as an example. Other examples may differ from the example described in connection with Figure 6.

[0045] Figure 7 is a rear perspective view of retainer sleeve 600 described herein. As shown in Figure 7, each leg 658a-e may include a second bend 660. As shown in Figure 7, retainer sleeve 600 may include five legs. Alternatively, retainer sleeve 600 may include two, three, four, six, seven, or more legs 658a-e. The multiple legs 658a-e may correspond to multiple plates 608a-e of the multiple plates 608a-e.

[0046] Each leg 658a-e may include an outer surface 662 that collectively forms a segmented frusto-conical surface configured as a segmented "C" shape (or segmented annular configuration) for the body. The legs 658a-e may be configured to engage within the locking cavity 310 of the tip 300. The legs 658a-e may be flexibly coupled to the body 606 such that the legs are compressible as the retainer sleeve 600 is inserted into the locking cavity 310 and expandable when the retainer sleeve 600 is assembled within the locking cavity 310.

[0047] First leg 658a, third leg 658c, and fifth leg 658e may include a second bend 660, a first extension 664, a third bend 666, and a second extension 668. Each leg 658a-e may have a similar shape, with the difference in shape relating to third bend 666 and second extension 668 being included in one or more legs, such as first leg 658a, third leg 658c, and / or fifth leg 658e (e.g., not included in one or more other legs). For example, every other leg of legs 658a-e may include third bend 666 and second extension 668. Alternatively, each leg 658a-e may include third bend 666 and second extension 668 (or none). For example, the legs 658a-e that include the second extension 668 may have a different length than the legs 658a-e that do not include the second extension 668.

[0048] The third bent portion 666 may flexibly extend from the first extension portion 664. The third bent portion 666 may vary from outward to inward relative to the retainer axis 604. The third bent portion 666 may have a constant radius of 0.5 mm (mm) to 6.0 mm (mm). The third bent portion 666 may transition at an angle from the first extension portion 664 to the second extension portion 668. The angle relative to the first extension portion 664 may be between 40 degrees and 110 degrees. The second extension portion 668 may extend downward and inward from the third bent portion 666 relative to the retainer axis 604. The second extension portion 668 may extend from the first extension portion 664 facing the first plate 608a. The first extension portion 664 may gradually taper from a wide portion near the third bent portion 666 or the first plate 608a to a narrow portion near the end of the second extension portion 668.

[0049] The body 606 of the retainer sleeve 600 may include a second hole 670. For example, the fourth plate 608d may include the second hole 670. In other words, any of the plates 608a-e that includes the anti-rotation feature 620 may include the second hole 670. The second hole 670 may define a second opening of the cavity 632 defined by the shell 630 of the anti-rotation feature 620. The shape of the second hole 670 may correspond to the shape of the shell 630 of the anti-rotation feature 620. For example, the second hole 670 may have a substantially "D" shape with flat and curved edges. Alternatively, the second hole 670 may not have a curved edge (e.g., it may be rectangular). For example, anti-rotation feature 620 may be a louver formed by fourth plate 608d such that first hole 634 and second hole 670 provide an opening to cavity 632 defined by shell 630 of anti-rotation feature 620. In some examples, anti-rotation feature 620 may be a punch from fourth plate 608d. First hole 634 and second hole 670 may define a passageway or hole through fourth plate 608d.

[0050] As noted above, Figure 7 is provided as an example. Other examples may differ from the example described in connection with Figure 7.

[0051] 8 is a top view of a retainer sleeve 600 described herein. As shown in FIG. 8, the retainer sleeve 600 may have a substantially annular shape about the retainer axis 604. For example, the retainer sleeve 600 may form a "C" shape about the retainer axis 604. The retainer sleeve 600 may form the substantially annular shape via a central bend(s) 618 that joins the multiple plates 608a-e together.

[0052] The anti-rotation feature 620 may be disposed radially at a second angle 626 relative to the radial end 628 of the body 606 and the retainer shaft 604 (e.g., and / or the detent projection 640a or 640b). For example, the locking surface 622 (e.g., a forward radial edge of the locking surface 622) may be disposed radially at the second angle 626 relative to the radial end 628 of the body 606 and the retainer shaft 604 (e.g., and / or the detent projection 640a or 640b). The magnitude of the second angle 626 may substantially correspond to the amount of rotation that moves the lock 500 to the unlocked position when rotated about the lock pivot axis 502. In other words, the magnitude of the second angle 626 may be less than the amount of rotation that moves the lock 500 to the unlocked position when rotated about the lock pivot axis 502. For example, the second angle 626 may be between 30 degrees and 37.5 degrees.

[0053] As noted above, Figure 8 is provided as an example. Other examples may differ from the example described in connection with Figure 8.

[0054] 9 is a cross-sectional view of the central tab 652, fourth plate 608d, and fourth leg 658d described herein. The shape of second leg 658b may be similar to that of fourth leg 658d, and second leg 658b may use similar features as those described in connection with fourth leg 658d.

[0055] The first bent portion 650 can transition from the central tab 652 to the lower end 616 of the fourth plate 608d at a third angle 672. The third angle 672 can be between 85 degrees and 90 degrees relative to the fourth plate 608d. The second bent portion 660 can flexibly extend from the upper end 614 of the fourth plate 608d to the first bent portion 650. The second bent portion 660 can extend outward relative to the retainer axis 604. The second bent portion 660 can be formed with a constant radius of 0.5 mm to 6.0 mm. The second bent portion 660 can transition from the fourth plate 608d to the first extension portion 664 at a fourth angle 674. The fourth angle 674 can be between 20 degrees and 50 degrees relative to the fourth plate 608d.

[0056] The first extension 664 may extend away from the second bent portion 660 or the fourth plate 608d relative to the retainer shaft 604, or may extend outward from the second bent portion 660 or the fourth plate 608d. The first extension 664 may taper from a wide width near the second bent portion 660 or the fourth plate 608d to a narrow width near the end of the fourth plate 608d or the first extension 664. For example, the taper may be 5 to 10 degrees. The first extension 664 may have a constant radius of curvature, for example, from 60 mm to 65 mm. The first extension 664 may have a concave curvature relative to the fourth plate 608d. In another example, the first extension 664 may be straight or have a varying curvature.

[0057] 9, anti-rotation feature 620 may extend from fourth plate 608d (or inner surface 602 of retainer sleeve 600) toward retainer shaft 604. For example, anti-rotation feature 620 may extend 2 mm to 5 mm from fourth plate 608d (or inner surface 602 of retainer sleeve 600).

[0058] As noted above, Figure 9 is provided as an example. Other examples may differ from the example described in connection with Figure 9.

[0059] Figure 10 is a front view of the fourth plate 608d with the anti-rotation feature 620 described herein. Figure 10 shows a cutaway front view of the retainer sleeve 600, showing only a portion of the fourth plate 608d and fifth plate 608e for clarity.

[0060] The locking surface 622 of the anti-rotation feature 620 may be disposed at a first angle 624 relative to the lower end 616 of the fourth plate 608d. The first angle 624 may be between 20 degrees and 35 degrees. In some embodiments, the first angle 624 may be approximately 27.5 degrees. The first angle 624 may substantially correspond to the angle 532 of the locking skirt 504 of the lock 500. For example, the first angle 624 and the angle 532 may be complementary angles (such that the sum of the first angle 624 and the angle 532 is approximately 180 degrees). This may achieve an increased locking area when the locking surface 622 contacts the circumferential end of the locking skirt 504 (e.g., because the first angle 624 and the angle 532 are approximately complementary angles, a larger surface area of ​​the locking surface 622 may contact the circumferential end of the locking skirt 504). Alternatively, the first angle 624 may be greater than 35 degrees. For example, the locking surface 622 of the anti-rotation mechanism 620 may be substantially perpendicular to the bottom edge 616 of the fourth plate 608d.

[0061] The shell 630 of the anti-rotation mechanism 620 may include one or more curved edges 636. The one or more curved edges 636 may have a constant radius or a varying radius. The one or more curved edges 636 may have a constant radius ranging from 0.5 mm to 2 mm. The shell 630 may have a depth 676 and a width 678. The depth 676 may be 3 mm to 8 mm. The width 678 may define the length of the locking surface 622. The width 678 may be 5 mm to 11 mm. The depth 676 and / or width 678 may be a function of or depend on the size of the retainer sleeve 600 and / or the size of the lock 500.

[0062] Anti-rotation feature 620 may be positioned a first distance 680 from bottom edge 616 of fourth plate 608d. First distance 680 may be between 0.5 mm and 4 mm. Anti-rotation feature 620 may be positioned approximately in the center of fourth plate 608d relative to first side 610 and second side 612. For example, anti-rotation feature 620 may be positioned a second distance 682 from second side 612 of fourth plate 608d. Second distance 682 may be between 1.5 mm and 4.5 mm.

[0063] As noted above, Figure 10 is provided as an example. Other examples may differ from the example described in connection with Figure 10.

[0064] 11 is a cross-sectional view of a fourth plate 608d with an anti-rotation feature 620 described herein. For example, the cross-section of the fourth plate may be from plane AA shown in FIG.

[0065] 11 , the locking surface 622 of the anti-rotation mechanism 620 may be substantially flat and / or perpendicular to the inner surface 602 of the retainer sleeve 600. As a result, the anti-rotation mechanism may be configured to prevent rotation of the lock 500 relative to the lock pivot 502, such that the lock 500 can rotate past the anti-rotation mechanism 620 only if the anti-rotation mechanism 620 fails (e.g., a flat locking surface 622 and / or a perpendicular locking surface 622 may not allow the lock 500 to rotate past the anti-rotation mechanism 620 unless sufficient torque is applied to the lock 500 to cause the anti-rotation mechanism 620 to fail).

[0066] The anti-rotation feature 620 may be a louver or punch from the fourth plate 608d. For example, the anti-rotation feature 620 may include a first hole 634 in the locking surface 622 and a second hole 670 in the body 606 of the retainer sleeve 600 and / or the fourth plate 608d. The anti-rotation feature 620 may define an opening or passageway through the fourth plate 608d (e.g., from the rear surface of the fourth plate 608d to the inner surface 602 of the retainer sleeve 600). The anti-rotation feature 620 may include a shell 630 defining a cavity 632. The shell 630 and / or the locking surface 622 may extend away from the inner surface 602 toward the retainer axis 604. For example, the shell 630 and / or the locking surface 622 may extend 2 mm to 5 mm from the inner surface 602.

[0067] The shell 630 may have a thickness substantially corresponding to the thickness of the fourth plate 608d. For example, the shell 630 may extend from the fourth plate 608d. For example, the shell 630 may extend from the inner surface 602 of the fourth plate 608d to the locking surface 622. As shown in FIG. 11 , the shell 630 may be angled. For example, the shell 630 may include at least one bend. As shown in FIG. 11 , the shell 630 may include a fourth bend 684 and a fifth bend 686. The fourth bend 684 may extend from the fourth plate 608d. The fourth bend 684 may be a convex bend relative to the retainer axis 604. The fourth bend 684 may have a constant radius of 0.5 mm to 2.0 mm. The fifth bend 686 may extend from the fourth bend 684 to the locking surface 622 (or a flat portion of the shell 630). The fourth bend 684 may be a concave bend relative to the retainer axis 604. The fourth bend 684 may have a constant radius of 0.5 mm to 2.0 mm. Optionally, the shell 630 may include a single bend or may be unbent. For example, the shell 630 may be rectangular rather than angled or curved.

[0068] As noted above, Figure 11 is provided as an example. Other examples may differ from the example described in connection with Figure 11.

[0069] FIG. 12 is a top view of an assembly of a lock 500 and a retainer sleeve 600 described herein. FIG. 12 shows the lock 500 in a locked position. The body 606 of the retainer sleeve 600 may include a continuous inner surface 602 facing the retainer axis 604. The inner surface 602 may be formed by a plurality of plates 608a-e and a central bend(s) 618. The lock 500 may be configured to mate with the inner surface 602. For example, as shown in FIGS. 4 and 5 , the lock 500 may include a locking skirt 504 whose outer surface 506 has substantially the same contour as the inner surface 602 of the retainer sleeve 600. The outer surface 506 may be concentric with and / or extend circumferentially around the lock rotation axis 502. The locking skirt 504 and outer surface 506 may extend only partway around the lock rotation axis 502. The lock 500 may be configured within the retainer sleeve 600, with the outer surface 506 of the lock 500 mating with the inner surface 602 of the retainer sleeve 600. When the lock 500 is disposed within the retainer sleeve 600, the lock rotation axis 502 may coincide with the retainer axis 604.

[0070] The lock 500 may include one or more detent recesses 508 configured to engage with corresponding detent protrusions 640a, 640b of the retainer sleeve 600 to releasably retain the lock 500 in a predetermined rotational position (e.g., a locked position) about the lock axis of rotation 502. The detent recesses 508 may be shaped to mate with the detent protrusions 640a, 640b. This positions the lock 500 within the retainer sleeve 600 with its outer surface 506 mating with the inner surface 602 of the retainer sleeve 600 and the detent protrusions 640a, 640b extending into the detent recesses 508. The retainer sleeve 600 may be configured to flex to allow the detent protrusions 640a, 640b to engage and / or disengage the detent recesses 508. For example, the retainer sleeve 600 may be at least partially constructed of a flexible material, including, but not limited to, a plastic material or an elastic material. In some embodiments, retainer sleeve 600 may be constructed entirely of such flexible materials. Additionally or alternatively, retainer sleeve 600 may be constructed of a self-lubricating material that can exude or release a lubricating substance. As another example, retainer sleeve 600 may be made of a metal, such as steel. Retainer sleeve 600 made of such a material may exhibit low friction while maintaining dimensional stability.

[0071] As noted above, Figure 12 is provided as an example. Other examples may differ from the example described in connection with Figure 12.

[0072] FIG. 13 is a cross-sectional view of the assembly of the lock 500 and retainer sleeve 600 described herein. FIG. 13 shows the lock 500 in a rotated position. The lock 500, along with the retainer sleeve 600, can be installed within the lock cavity 310, with the outer surface 506 of the lock 500 mating with the central tab(s) 652, the end tab(s) 654, and the inner surface 602. When the lock 500 is in this position, the open end 524 of the lock slot 522 can face rearward, as shown in FIG. 3. This position allows the post 210 to slide into and out of the lock slot 522 via the open end 524. Therefore, this position of the lock 500 can be referred to as the unlocked position.

[0073] Lock 500 is rotatable relative to lock pivot 502 to a locked position to lock post 210 within lock slot 522. In the locked position, the portion of locking skirt 504 adjacent closed end 526 can prevent sliding movement of post 210 relative to lock slot 522, thereby preventing sliding movement of tip 300 relative to adapter 200.

[0074] The anti-rotation feature 620 of the retainer sleeve 600 may be configured to allow the lock 500 to rotate from the unlocked position to the locked position. For example, the shell 630 of the anti-rotation feature 620 may be angled or curved so that when sufficient torque is applied to the lock 500, the lock 500 can rotate from the unlocked position to the locked position. However, the anti-rotation feature 620 of the retainer sleeve 600 may be configured to prevent the lock 500 from rotating from the locked position to the unlocked position. For example, as shown in FIG. 13 , a locking surface 622 may prevent the lock 500 from rotating past the anti-rotation feature 620. For example, the locking surface 622 may be substantially flat and / or perpendicular to the inner surface 602 of the retainer sleeve 600, thereby preventing or inhibiting the lock 500 from rotating about the lock rotation axis 502 via the anti-rotation feature 620. For example, in some cases, vibration or force can cause the detent projections 640a, 640b and / or the detent recess 508 to deflect and disengage from one another. When the detent projections 640a, 640b and the detent recess 508 are disengaged, the outer surface 506 of the locking skirt 504 can slide along the inner surface 602 of the retainer sleeve 600 as the lock 500 rotates about the lock pivot 502. The anti-rotation mechanism 620 can block such rotation of the lock 500, preventing the lock 500 from inadvertently rotating to the unlocked position.

[0075] As noted above, Figure 13 is provided as an example. Other examples may differ from the example described in connection with Figure 13.

[0076] 14 is a cross-sectional view of an assembly of a tip 300, a lock 500, and a retainer sleeve 600 as described herein. The retainer sleeve 600 may be configured to mate with the inner surface 318 of the lock cavity 310. For example, the retainer sleeve 600 may include legs 658a-e that form a frusto-conical shape configured to mate with a corresponding frusto-conical portion of the inner surface 318 in the lock cavity 310. Thus, the legs 658a-e may be configured to retain the retainer sleeve 600 and / or the lock 500 within the lock cavity 310.

[0077] As noted above, Figure 14 is provided as an example. Other examples may differ from the example described in connection with Figure 14. [Industrial Applicability]

[0078] The retainer system 400 and ground engaging tools described herein may be applicable to a variety of earth moving machines, such as, for example, excavators, wheel loaders, hydraulic mining shovels, cable shovels, bucket wheels, bulldozers, draglines, etc. When installed, the retainer system 400 and ground engaging tools described herein may protect various implements associated with the earth moving machines from wear in areas where the most harmful wear and impact occurs, thereby extending the useful life of the implements.

[0079] Some embodiments described herein enable safe and secure connection of ground-engaging tools to various earthmoving implements. For example, retainer system 400 may include lock 500 and retainer sleeve 600. To connect tip 300 to adapter 200, lock 500 and retainer sleeve 600 can be assembled into lock cavity 310. Lock cavity 310 opens into rearward-extending side slot 320 that allows passage of post 210 of adapter 200. Lock 500 can be rotated about lock pivot 502 to a locked position when post 210 is inserted into lock slot 522. In this position, a portion of lock skirt 504 adjacent closed end 526 can prevent post 210 from slipping out of lock slot 522, thereby preventing sliding movement of tip 300 relative to adapter 200. In the locked position, detent recesses 508 of lock 500 are engageable with detent protrusions 640a, 640b of retainer sleeve 600 to releasably retain lock 500 in the locked position.

[0080] The anti-rotation feature 620 of the retainer sleeve 600 can rotate the lock 500 from the unlocked position to the locked position. For example, the angled shell 630 of the anti-rotation feature 620 can allow the lock 500 to rotate over and / or through the anti-rotation feature 620 to the locked position. The anti-rotation feature 620 can be configured to prevent rotation of the lock 500 about the lock rotation axis 502 from the locked position to the unlocked position. For example, the detent protrusions 640a, 640b can releasably hold the lock 500 in place so that the lock 500 can disengage from the detent protrusions 640a, 640b and rotate about the lock rotation axis 502 (e.g., due to vibration or another force). The locking surface 622 can be configured to contact a circumferential end of the locking skirt 504 to prevent or inhibit rotation of the lock 500.

[0081] For example, locking surface 622 may be a substantially flat surface and / or may be substantially perpendicular to inner surface 602 of retainer sleeve 600. As a result, when a circumferential end of locking skirt 504 abuts locking surface 622, locking surface 622 may prevent rotation of lock 500. Locking surface 622 may also be disposed at a first angle 624 that substantially corresponds to angle 532 of the circumferential end of locking skirt 504. As a result, when the circumferential end of locking skirt 504 contacts locking surface 622, a large contact surface area may be created between the circumferential end of locking skirt 504 and locking surface 622. This increased surface area may provide increased locking force and improve the ability of anti-rotation mechanism 620 to prevent rotation of lock 500 about lock rotation axis 502. For example, to remove tip 300 from adapter 200, it may be necessary to apply sufficient torque to lock 500 to defeat anti-rotation mechanism 620. In other words, lock 500 may not be able to inadvertently rotate past anti-rotation feature 620 into the unlocked position, which improves the ability of retainer system 400, lock 500, and / or retainer sleeve 600 to ensure that tip 300 remains attached to adapter 200.

[0082] The legs 658a-e of the retainer sleeve 600 may be configured to mate with the inner surface 318 of the lock cavity 310 of the tip 300. The lock 500 may be configured to mate with the inner surface 602 of the retainer sleeve 600. The first bend 650, the second bend 660, the first extension 664, the second extension 668, and the third bend 666 are configured to provide flexibility and a spring-like effect to the body 606. The legs 658a-e can help accommodate changes in the size of the lock 500 and the lock cavity 310. The legs 658a-e may be configured to exert a compressive force on the lock cavity 310 to hold the lock 500 in place. For example, the first bend(s) 650 may be configured to urge the plurality of plates 608a-e to exert a compressive force on the outer surface 506 when bent. The second bend(s) 660 may be configured, when bent, to induce a compressive force against the inner surface 318 of the lock cavity 310 to keep the retainer sleeve 600 centered about the lock rotation axis 502. The third bend 666 may be configured, when bent, to generate a compressive force against the inner surface 318 of the lock cavity 310 to prevent the retainer sleeve 600 and lock 500 from shifting position or falling out during use.

[0083] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or acquired from practice of the implementations. Furthermore, any implementations described herein may be combined unless a reason why one or more implementations cannot be combined is explicitly provided in the foregoing disclosure. Although particular combinations of features are recited in the claims and / or disclosed herein, these combinations are not intended to limit the disclosure of various implementations. While each dependent claim listed below may depend directly on only one claim, the disclosure of various implementations includes each dependent claim in combination with all other claims in the claim group.

[0084] As used herein, the terms "a," "an," and "set" are intended to include one or more items and may be used interchangeably with "one or more." Additionally, as used herein, the term "the" is intended to include one or more items referenced in conjunction with "the" and may be used interchangeably with "one or more." Furthermore, the phrase "based on" is intended to mean "based at least in part on," unless expressly stated otherwise. Furthermore, as used herein, the term "or" is intended to be inclusive when used in a series and may be used interchangeably with "and / or" unless otherwise stated (e.g., when used in combination with "any" or "only one of"). Furthermore, for ease of description herein, spatially relative terms, such as "below," "below," "above," "on," and the like, may be used to describe the relationship of one element or feature to another element or feature, as illustrated. Spatially relative terms are intended to encompass different orientations of devices, apparatus, and / or elements in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein may be interpreted accordingly.

Claims

1. A retainer sleeve (600) for use with a ground engaging tool lock (500) having a lock cavity (310), comprising: a body (606) including an at least partially annular formation defining a retainer axis (604); an inner surface (602) configured to rotatably receive the outer surface (506) of said lock (500); a body (606) including a plurality of plates (608a-e) coupled to one another in a circumferential direction about the retainer shaft (604), a first plate (608a) of the plurality of plates including a first leg (658a) coupled to the first plate (608a), extending away from the retainer shaft (604), and configured to contact the locking cavity (310); an anti-rotation feature disposed on a fourth plate (608d) of the plurality of plates and extending inward from the inner surface (602) toward the retainer axis (604), the anti-rotation feature including a locking surface (622) configured to contact a locking skirt (504) of the lock (500), the locking surface (622) being disposed at a first angle (624) relative to a bottom end (616) of the fourth plate (608d); The retainer sleeve (600) includes a shell (630) defining a cavity (632), the locking surface (622) including a first hole (634) communicating with the cavity (632), and the fourth plate (608d) including a second hole (670) communicating with the cavity (632).

2. 2. The retainer sleeve of claim 1, wherein the anti-rotation feature is radially disposed at a second angle relative to a radial end of the body and the retainer axis.

3. 2. The retainer sleeve of claim 1, wherein the body includes a detent projection extending from a side of at least one of the plurality of plates, at least one of the plurality of plates not adjacent to two of the plurality of plates, and the detent projection configured to engage a detent recess of the lock to releasably retain the lock.

4. The retainer sleeve of claim 1, wherein the first angle (524) substantially corresponds to an angle (532) of the lock skirt (504) of the lock (500).

5. The retainer sleeve of claim 1 , wherein the locking surface (622) is a substantially flat surface.

6. A retainer system (400) for a ground engaging tool, comprising: a lock (500) and a retainer sleeve (600); The lock (500) comprises a head (510) having a tool interface (520); a locking skirt (504) extending from the head portion (510) and including an outer surface (506), the locking skirt (504) including an inclined surface; and The retainer sleeve (600) a body (606) including an at least partially annular configuration about a retainer axis (604); an anti-rotation feature disposed on an inner surface of the body and extending inwardly toward the retainer axis, the anti-rotation feature including a locking surface configured to contact a ramped surface of the locking skirt, the locking surface disposed at a first angle relative to a lower end of the body, the first angle substantially corresponding to the ramped surface; a plurality of legs (658a-e) extending from an upper end (614) of the body (606) away from the retainer axis (604), at least two of the plurality of legs having different lengths; The anti-rotation mechanism (620) a shell (630) defining a cavity (632) extending from an inner surface (602) of the body (606) toward the retainer axis (604), the shell (630) having a curved edge (636) and a flat edge (638), the locking surface (622) defining the flat edge (638); or a shell (630) defining a cavity (632), the locking surface (622) including a first hole (634) communicating with the cavity (632), and the body (606) including a second hole (670) communicating with the cavity (632); A retainer system (400).

7. 7. The retainer system of claim 6, wherein the body further comprises a plurality of plates, and the anti-rotation feature is disposed on at least one plate of the plurality of plates.

Images