Overlapping cutting edge tip system

Abstract

A cutting edge tip (400) includes an attachment portion (402) defining an adapter receiving cavity (404). A working portion (411) extends forward from the attachment portion (402). A first lateral end portion (414) is disposed in the lateral direction (408) and defines a first lateral end surface (416) for lateral micro-movement. Furthermore, a second lateral end portion (418) is disposed opposite to the first lateral end portion (414) in the lateral direction (408). The second lateral end portion (418) also defines a second lateral end surface (420) for lateral micro-movement.

Description

Technical Field

[0001] This disclosure relates to work implement assemblies, such as bucket assemblies for earthmoving, mining, and construction equipment. More specifically, this disclosure relates to such assemblies employing an overlapping cutting edge tip system. Background Technology

[0002] Machines such as wheel loaders and excavators employ implement components including bucket assemblies, rakes, and shears. These implement components have teeth or tips that attach to them to aid in working on materials such as soil, rock, and sand. For example, teeth or tips can be attached to the bucket assembly to help it penetrate the ground, facilitating the shoveling of soil into the bucket. Adapters are typically attached to the working edges (e.g., base edges, side edges, etc.) of the bucket or other implement, allowing different types of teeth or tips to be attached to the implement. Furthermore, when worn, tips or teeth can be easily changed by providing adapters attached to the implement.

[0003] More specifically, in some applications, it is desirable to level or clean the bottom surface of the excavated terrain, such as to provide a foundation. Overlapping cutting edge tips are provided for such applications. While there are many such systems in the prior art, they may not meet all applications or may not provide an adequate lifespan.

[0004] Japanese Patent No. JP6413660B2 provides a central cutting edge tip that provides vertical overlap between two adjacent cutting edges at the joint. Therefore, vertical support is provided at the joint only when it is not necessary to share thrust loads or lateral loads.

[0005] In addition, Japanese Patent No. U3216474 provides a central cutting edge tip system that provides horizontal overlap but is not suitable for allowing variable spacing between adapters.

[0006] Therefore, there is a need for a more robust overlapping cutting edge system that can also accommodate variable adapter spacing, providing support in multiple directions at the joint between adjacent tips. Summary of the Invention

[0007] The cutting edge tip according to embodiments of the present disclosure may include an attachment portion defining an adapter receiving cavity, an assembly direction, a transverse direction perpendicular to the assembly direction, and a vertical direction perpendicular to both the assembly direction and the transverse direction. A working portion may extend forward from the attachment portion along the assembly direction to form a front working edge. A first transverse end portion may be disposed along the transverse direction, defining a first transverse end surface for transverse micro-movement. Furthermore, a second transverse end portion may be disposed opposite to the first transverse end portion along the transverse direction. The second transverse end portion may also define a second transverse end surface for transverse micro-movement.

[0008] According to another embodiment of this disclosure, the cutting edge tip may include an attachment portion defining an adapter receiving cavity, an assembly direction, a transverse direction perpendicular to the assembly direction, and a vertical direction perpendicular to both the assembly direction and the transverse direction. A working portion may extend forward from the attachment portion along the assembly direction to form a front working edge. A first transverse end portion may be disposed along the transverse direction, defining a first transverse end surface, and a second transverse end portion may be disposed opposite to the first transverse end portion along the transverse direction, defining a second transverse end surface. The front working edge may include: a first working edge portion extending transversely inward from the first transverse end surface at a first vertical level; a second working edge portion extending from the first working edge portion and positioned at a second vertical level higher than the first vertical level of the first working edge portion; and a third working edge portion extending from the second working edge portion to the second transverse end surface, positioned at a third vertical level higher than the second vertical level of the second working edge portion.

[0009] The tip of the side cutting edge according to an embodiment of the present disclosure may include an attachment portion defining an adapter receiving cavity, an assembly direction, a lateral direction perpendicular to the assembly direction, and a vertical direction perpendicular to both the assembly direction and the lateral direction. A working portion may extend forward from the attachment portion along the assembly direction to form a front working edge. A first lateral end portion may be disposed along the lateral direction, defining a first lateral end surface for lateral micro-movement, and a second lateral end portion may be disposed opposite to the first lateral end portion along the lateral direction, defining a second lateral end surface for lateral micro-movement. The first lateral end portion may include a sidewall extending vertically upward from the working portion. Attached Figure Description

[0010] Figure 1This is a perspective view of a working tool assembly, such as a bucket assembly, according to an embodiment of the present disclosure, which uses an Overlapping Cutting Edge Tip System (OCETS) on the bottom front lip of the bucket assembly.

[0011] Figure 2 The illustration shows the bucket assembly moving in a stepped motion as the bucket is pulled toward a work machine such as an excavator.

[0012] Figure 3 It is attached to Figure 1 and Figure 2 A perspective view of the bottom front lip of the bucket assembly, shown separately from the rest of the bucket assembly.

[0013] Figure 4 This is a top view of an overlapping cutting edge tip system used on two different configurations of the front lip. The top embodiment illustrates how the system can be used with a wider pitch adapter, while the bottom embodiment illustrates how the same system can be used with a narrower pitch adapter.

[0014] Figure 5 yes Figure 3 The right-side view of the central cutting edge tip of the OCETS shows how the tip aligns with the inclination of the front lip to facilitate material loading and unloading from the bucket.

[0015] Figure 6 This is a left-oriented perspective view of the left cutting edge tip, center cutting edge tip, and right cutting edge tip used in OCETS.

[0016] Figure 7 yes Figure 6 A right-oriented perspective view of the cutting edge tip.

[0017] Figure 8 yes Figure 6 and Figure 7 Top view of the tip of the right cutting edge.

[0018] Figure 9 yes Figure 8 A front view of the tip of the right cutting edge.

[0019] Figure 10 yes Figure 8 Left-side view of the tip of the right cutting edge.

[0020] Figure 11 yes Figure 8 The right-side view of the tip of the right cutting edge.

[0021] Figure 12 yes Figure 6 and Figure 7 Top view of the center cutting edge tip.

[0022] Figure 13 yes Figure 12 A front view of the center cutting edge tip.

[0023] Figure 14 yes Figure 12 Left view of the tip of the central cutting edge.

[0024] Figure 15 yes Figure 12 The right-side view of the tip of the central cutting edge.

[0025] Figure 16 yes Figure 6 and Figure 7 Top view of the tip of the left cutting edge.

[0026] Figure 17 yes Figure 16 A front view of the tip of the left cutting edge.

[0027] Figure 18 yes Figure 16 Left-side view of the tip of the left cutting edge.

[0028] Figure 19 yes Figure 16 The right-side view of the tip of the left cutting edge. Detailed Implementation

[0029] Reference will now be made in detail to embodiments of this disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used throughout the drawings to denote the same or similar parts. In some cases, reference numerals will be indicated in this specification, and the drawings will show the reference numerals followed by letters, such as 100a, 100b, or apostrophes such as 100', 100”, etc. It should be understood that the use of a letter or apostrophe immediately following a reference numeral indicates that these features have similar shapes and similar functions, as is often the case when the geometry is mirrored about a plane of symmetry. For ease of explanation in this specification, letters or apostrophes are generally not included herein but may be shown in the drawings to indicate repetition of features discussed in this written specification.

[0030] Overlapping cutting edge tip systems (OCETS) that may include a right cutting edge tip, a center cutting edge tip, and a left cutting edge tip according to various embodiments of the present disclosure will now be discussed.

[0031] from Figure 1 and Figure 2Initially, the work implement assembly 100 may take the form of a bucket assembly 100a, which includes a housing 101 defining an opening 102 communicating with a generally enclosed interior. Starting from the rear of the bucket assembly 100a, the bucket assembly 100a includes a curved housing profile 104, which is attached to a top wall 106 at the top of the housing 104. The other end of the housing is attached to a bottom plate 108 of the assembly 100. Two generally flat end plates 114 are attached to the top plate 106, the bottom plate 108, and the side edges of the housing 104.

[0032] Side edge assemblies 115 are attached to each end plate 114, while front edge assemblies 200 (hereinafter referred to as OCETS) are attached to the front edge of the bottom plate 108 of the bucket assembly 100. The front edge assembly 200 includes a base edge 202 (also referred to as a front lip), a plurality of center adapters 204 attached to the base edge 202, and a plurality of cutting edge tips 300, 400, 500, wherein each cutting edge tip is attached to one of the plurality of center adapters 204. Additionally, in some embodiments, two corner adapters may be provided, which may also be attached to the base edge 202 and / or the side edge.

[0033] It should be understood that the work implement assembly can take other forms than the bucket assembly, including rake assemblies, shear assemblies, etc. Furthermore, any embodiment of the cutting edge tip can be used in any other form of work implement assembly that includes bucket assemblies with other different configurations.

[0034] Now for reference Figures 6 to 19 Examples of cutting edge tips of 300, 400, and 500 will now be discussed in more detail. See also Figure 8 , Figure 12 and Figure 16 Such cutting edge tips 300, 400, 500 may include attachment portions 302, 402, 502, which define adapter receiving cavities 304, 404, 504, assembly directions 306, 406, 506, transverse directions 308, 408, 508 perpendicular to the assembly direction, and vertical directions 310, 410, 510 perpendicular to the assembly direction and the transverse direction.

[0035] Working portions 311, 411, and 511 can extend forward from attachment portions 302, 402, and 502 along the assembly direction of components 306, 406, and 506, forming front working edges 312, 412, and 512. Furthermore, first lateral end portions 314, 414, and 514 can be provided along lateral directions 308, 408, and 508. The first lateral end portions 314, 414, and 514 can define first lateral end surfaces 316, 416, and 516 for lateral micro-movement. Similarly, second lateral end portions 318, 418, and 518 can be provided opposite to the first lateral end portions 314, 414, and 514 along lateral directions 308, 408, and 508. The second lateral end portions 318, 418, and 518 can also define second lateral end surfaces 320, 420, and 520 for lateral micro-movement.

[0036] As in Figure 8 , Figure 10 , Figure 12 and Figure 14 As best viewed, the first lateral end surfaces 316, 416 may include first lateral outer end surfaces 322, 422 (defining lateral ends) extending along assembly directions 306, 406 and vertical directions 310, 410 (e.g., at least a portion of the surface extends at an angle to the horizontal plane) and are laterally disposed adjacent to attachment portions 302, 402. Additionally, first lateral inner end surfaces 324, 424 (later spaced inward from 322, 422) may extend along assembly directions 306, 406 (i.e., the direction of maximum extent of the surface) and are laterally disposed adjacent to working portions 311, 411. First transition surfaces 326, 426 may be located between the first lateral outer end surfaces 322, 422 and the first lateral inner end surfaces 324, 424. The first transition surfaces 326, 426 may extend laterally between these surfaces 322, 422, 324, 424 (i.e., the lateral direction is the direction of the maximum extent of the surface). More specifically, in some embodiments of this disclosure, the first transition surfaces 326, 426, as well as the first lateral outer end faces 322, 422 and the first lateral inner end faces 324, 424, may be perpendicular to the assembly directions 306, 406.

[0037] See now Figure 12 , Figure 15 , Figure 16 and Figure 19It is understood that the second lateral end surfaces 420, 520 may include second lateral outer end surfaces 428, 528, which extend along the assembly directions 406, 506 (maximum dimensions) and are laterally disposed adjacent to the working portions 411, 511. Furthermore, the second lateral inner end surfaces 430, 530 may extend along the assembly directions 406, 506 and the vertical directions 410, 510 (e.g., at least a portion of this surface may be angled relative to the horizontal plane) and are laterally disposed adjacent to the attachment portions 402, 502. Additionally, the second transition surfaces 432, 532 may be located between the second lateral outer end surfaces 428, 528 and the second lateral inner end surfaces 430, 530. In some embodiments of this disclosure, the second transition surfaces 432, 532 may extend primarily laterally.

[0038] As in Figure 12 and Figure 15 Ideally, the second transition surface 432 can be perpendicular to the assembly direction 406, the second lateral outer end face 428, and the second lateral inner end face 430. Figure 12 In this configuration, the second transition surface 432 is spaced rearward from the first transition surface 426 along the assembly direction 406 by a predetermined distance 433 (e.g., greater than 5.0 mm in some embodiments), and the first lateral end surface 416 is at least partially complementary in shape to the second lateral end surface 420. This configuration of features allows the first lateral end portion to mate or interlock with the second lateral end portion. Other configurations of these features are possible in other embodiments of this disclosure.

[0039] Therefore, in Figures 8 to 10 and Figures 12 to 14 In the middle, the hanging flanges 334 and 434 can extend laterally from the flange side 336 and 436 toward the attachment portion 302 and 402, and the flange side 336 and 436 are vertically arranged above the first lateral inner end face 324 and 424.

[0040] exist Figure 13 and Figure 14 In the middle, the overhanging flange 434 can define a first transverse end groove 438, which is defined by a rear surface 440 that is coplanar with or offset rearward from the second transverse transition surface 432 and a third transverse inner end surface 442 that is offset transversely inward from the first transverse inner end surface 424. Figure 9 and Figure 10 A similar structure can be seen in it.

[0041] Now for reference Figure 13 , Figure 15 , Figure 17 and Figure 19It is understood that the second lateral end portions 418, 518 may define bottom recesses 444, 544 defined by third lateral outer end faces 446, 546, which are laterally offset inward from the second lateral outer end faces 428, 528. Third transition surfaces 448, 548 may extend laterally inward from the third lateral outer end faces 446, 546. The third transition surfaces 448, 548 may be coplanar with or forward-offset from the first transition surface 426 (shown only for embodiment 400). Fourth transition surfaces 450, 550 may extend rearward in the assembly direction and vertically upward from the third transition surfaces 448, 548.

[0042] Bosses 452 and 552 may be disposed above bottom recesses 444 and 544, which extend laterally outward from working portions 411 and 511 to second lateral outer end faces 428 and 528, and rearward from front working edges 412 and 512 along assembly directions 406 and 506. Bosses 452 and 552 may terminate substantially above third transition surfaces 448 and 548. In other embodiments of this disclosure, these features may be configured differently.

[0043] Now, refer to Figures 12 to 15 The discussion focuses on specific embodiments of the cutting edge tip.

[0044] Such a cutting edge tip 400 may include an attachment portion 402 defining an adapter receiving cavity 404, an assembly direction 406, a transverse direction 408 perpendicular to the assembly direction 406, and a vertical direction 410 perpendicular to both the assembly direction 406 and the transverse direction 408. A working portion 411 may extend forward from the attachment portion 402 along the assembly direction 406 to form a front working edge 412, as previously described herein.

[0045] Similarly, the first lateral end portion 414 may be disposed along the lateral direction 408 defining the first lateral end surface 416. In various embodiments of this disclosure, this surface may or may not be slightly undisturbed.

[0046] Similarly, the second lateral end portion 418 may be disposed opposite to the first lateral end portion 414 in the lateral direction 408. Furthermore, the second lateral end portion 418 may define a second lateral end surface 420, which may or may not move slightly in various embodiments of this disclosure.

[0047] The front working edge 412 may include a first working edge portion 454, a second working edge portion 458, and a third working edge portion 462. The first working edge portion 454 extends laterally inward from a first lateral end surface 416 at a first vertical level 456. The second working edge portion 458 extends laterally from the first working edge portion 454 and is positioned at a second vertical level 460, which is higher than the first vertical level 456 of the first working edge portion 454. The third working edge portion 462 extends laterally from the second working edge portion 458 to a second lateral end surface 420. The third working edge portion 462 may be positioned at a third vertical level 464, which is higher than the second vertical level 460 of the second working edge portion 458.

[0048] See Figure 14 The first lateral end surface 416 can extend from the first working edge portion 454 along the assembly direction 406 until it teaches the transition axis 465. Then, the first lateral end surface 416 can extend from the transition axis 465 at an angle 468 to the assembly direction 406 to the first rear end 466 of the cutting edge tip. This may not be the case in other embodiments of this disclosure. Furthermore, other dimensions and angles are also possible.

[0049] Similarly, in Figure 15 In this process, the second transverse end surface 420 extends from the third working edge portion 462 along the assembly direction 406 to a different transition axis 470. From there, the second transverse end surface 420 extends to the second rear end 472 of the cutting edge tip at the same inclined slope angle 468.

[0050] like Figure 12 As shown, the cutting edge tip 400 may define a partially trapezoidal groove 474 defined by a first rear end 466, a second rear end 472, and an attachment portion 402. This may not be the case in other embodiments of this disclosure.

[0051] Similarly, in Figure 14 and Figure 15 In this configuration, the attachment portion 402 may include a pyramidal shape 476 defining the adapter receiving cavity 404. A lock receiving hole 478 may communicate with the adapter receiving cavity 404. (See also...) Figure 14 , Figure 15 and Figure 3 In this case, the first lateral end portion 414 may include a socket (e.g., see 438), and the second lateral end portion 418 may include a tongue 480 configured to engage within the socket.

[0052] The socket may include a top fork-shaped portion 482, a bottom fork-shaped portion 486, and a connecting portion 488. The top fork-shaped portion 482 is disposed on a fourth vertical level 484 above a third vertical level 464 of a third working edge portion 462. The bottom fork-shaped portion 486 extends rearward from a first working edge portion 454 along an assembly direction 406. The connecting portion 488 connects the top fork-shaped portion 482 and the bottom fork-shaped portion 486. A tongue 480 may be laterally disposed away from the socket at a second vertical level 456 of a second working edge portion 458. Similarly, other configurations are possible in other embodiments of this disclosure.

[0053] Next, we will discuss things such as Figures 16 to 19 The tip of the side cutting edge is shown.

[0054] For example, such a cutting edge tip 500 may include an attachment portion 502 that defines an adapter receiving cavity 504, an assembly direction 506, a transverse direction 508 perpendicular to the assembly direction, and a vertical direction 510 perpendicular to the assembly direction 506 and the transverse direction 508. A working portion 511 may extend forward from the attachment portion 502 along the assembly direction 506 to form a front working edge 512.

[0055] A first lateral end portion 514 is disposed in a lateral direction, which defines a first lateral end surface 516 for lateral micro-movement. A second lateral end portion 518 is disposed opposite to the first lateral end portion 514 in a lateral direction, and the second lateral end portion 518 defines a second lateral end surface 516 for lateral micro-movement. The first lateral end portion 514 may include a sidewall 590 extending vertically upward from the working portion 511. Except for these features being mirrored, it is possible to... Figures 8 to 11 To provide a similar description.

[0056] like Figures 16 to 19 As shown, the sidewall 590 extends vertically upward and backward from the front working edge 512 along the assembly direction 506 to the top surface 592 of the attachment portion 502, while also forming a first lateral end surface 516. Similarly, except for these features which will be mirrored, for... Figures 8 to 11 To provide a similar description.

[0057] exist Figure 16 and Figure 19 In the middle, the second lateral end surface 520 at least partially defines a tongue portion 580, which defines the lateral end 593 of the side cutting edge 500, and also defines a groove 594 which is disposed behind the tongue portion 580 along the assembly direction 506 and extends to the rear end 572 of the side cutting edge 500.

[0058] The socket portion 595 may be laterally disposed between the second lateral end surface 520 and the attachment portion 502, and the recess 596 may be laterally outwardly disposed adjacent to the socket portion 595, extending forward along the assembly direction 506 to the front working edge 512. A pad (e.g., see boss 552) may be laterally disposed adjacent to the lateral end 593 and adjacent to the front working edge 512 along the assembly direction 506.

[0059] Furthermore, it should be noted that any of the configurations of dimensions, angles, surface areas, and / or various features may vary as desired or required, including those not specifically mentioned herein. Although not specifically discussed, examples such as fillets are shown for connecting various surfaces. These may be omitted in other embodiments, and it should be understood that their presence may sometimes be overlooked while reading this specification unless specifically mentioned.

[0060] Industrial applicability

[0061] In practice, machines, tooling components, OCETS or any of their parts can be manufactured, purchased or sold to improve machines or tooling components already in the field in an aftermarket environment, or alternatively, can be manufactured, purchased, sold or otherwise obtained in an OEM (Original Equipment Manufacturer) environment.

[0062] Any of the above components may be made of any suitable material, including iron, gray cast iron, steel, etc.

[0063] OCETS can possess various characteristics that include the following properties. First, such as Figure 2 As shown in line 206, the working edge formed by OCETS is designed to wear uniformly over time. Furthermore, line 208 indicates that the additional material at the corners helps maintain a right angle throughout the wear life of the side cutting edge tip.

[0064] exist Figure 3 In the image, arrow 210 indicates the stepped / staggered overlap 212 at the edge to prevent material flow / guide the tip along its entire distance to reduce wear during loading and unloading of buckets or other abrasive implements. Meanwhile, variable adapter spacing 214 is possible. This concept is... Figure 4 It has been strengthened in the middle, among which from Figure 3 (See top example 200) The spacing 214 is reduced to 214a (see bottom example 200a). This is a key result that is not taught in the prior art.

[0065] Figure 5 The illustration shows the smooth entry and exit of the material, indicated by arrow 216. This is true because the ramp surface 218 of the OCETS is vertically located below and parallel to the beveled surface 220 of the base edge 202.

[0066] Such as Figure 3 The socket and tongue connection shown (see 212) also allows for support in the vertical direction, both upward and downward, making OCETS more robust.

[0067] To maintain consistency and versatility during assembly, the first transverse end portion of the right cutting edge tip can be configured similarly or identically to the first transverse end portion of the center cutting edge tip. Similarly, the second transverse end portion of the left cutting edge tip can be configured similarly or identically to the second transverse end portion of the center cutting edge tip.

[0068] During assembly, the right cutting edge tip is usually attached to the rightmost adapter first, then the center cutting edge tip is usually attached to the adapter sequentially from right to left, and the left cutting edge tip is usually attached to the leftmost adapter last.

[0069] The sidewalls on the tips of the left and right cutting edges can be configured similarly or identically. They can be inclined and provide a hopper path for material entering the bucket or other working implements.

[0070] It should be understood that the foregoing description provides examples of the disclosed components and techniques. However, it is conceivable that other embodiments of this disclosure may differ in detail from the foregoing examples. All references to this disclosure or examples thereof are intended to refer to the specific examples discussed at that point and are not intended to imply any limitation on the scope of this disclosure more generally. All language used to distinguish and derogatoryly describe certain features is intended to indicate a lack of preference for those features, but does not, unless otherwise stated, exclude them entirely from the scope of this disclosure.

[0071] Unless otherwise indicated herein, the enumeration of numerical ranges herein is intended only as a shorthand method for individually referring to each individual value falling within that range, and each individual value is incorporated into this specification as if it were individually enumerated herein.

[0072] As used herein, the articles “a” and “an” are intended to include one or more items and are used interchangeably with “one or more.” The term “one” or similar language is used when referring to only one item. Furthermore, as used herein, the terms “has,” “have,” “having,” “with,” etc., are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated.

[0073] It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the devices and assembly methods discussed herein without departing from the scope or spirit of the invention. Other embodiments of this disclosure will be apparent to those skilled in the art in light of the practice of the specification and the various embodiments disclosed herein. For example, the construction and function of some devices may differ from those already described herein, and certain steps of any method may be omitted, performed in a different order than specifically mentioned, or in some cases performed simultaneously or as sub-steps. Furthermore, variations or modifications can be made to certain aspects or features of the various embodiments to produce further embodiments, and features and aspects of the various embodiments may be added to or replace other features or aspects of other embodiments to provide even further embodiments.

[0074] Therefore, this disclosure includes all modifications and equivalents of the subject matter recited in the appended claims as permitted by applicable law. Furthermore, unless otherwise indicated herein or the context clearly contradicts it, this disclosure covers any combination of the elements described above in all possible variations.

Claims

1. A cutting edge tip (300, 400, 500), comprising: The attachment portions (302, 402, 502) define an adapter receiving cavity (304, 404, 504), an assembly direction (306, 406, 506), a lateral direction (308, 408, 508) perpendicular to the assembly direction (306, 406, 506), and a vertical direction (310, 410, 510) perpendicular to the assembly direction (306, 406, 506) and the lateral direction (308, 408, 508). Working portions (311, 411, 511) extend forward from the attachment portions (302, 402, 502) along the assembly direction (306, 406, 506) to form front working edges (312, 412, 512). First lateral end portions (314, 414, 514), the first lateral end portions (314, 414, 514) being disposed along the lateral direction (308, 408, 508), the first lateral end portions (314, 414, 514) defining first lateral end surfaces (316, 416, 516) for lateral micro-movement; and The second lateral end portions (318, 418, 518) are disposed opposite to the first lateral end portions (314, 414, 514) along the lateral direction (308, 408, 508), and the second lateral end portions (318, 418, 518) define a second lateral end surface (320, 420, 520) for lateral micro-movement. The second lateral end surface (420, 520) includes: a second lateral outer end surface (428, 528), which extends along the assembly direction (306, 406, 506) and is laterally disposed adjacent to the working portion (311, 411, 511); a second lateral inner end surface (430, 530), which extends along the assembly direction (306, 406, 506) and the vertical direction (310, 410, 510) and is laterally disposed adjacent to the attachment portion (302, 402, 502); and a second transition surface (432, 532), which is located between the second lateral outer end surface (428, 528) and the second lateral inner end surface (430, 530), and extends laterally.

2. The cutting edge tip (300, 400, 500) according to claim 1, wherein the first lateral end surface (316, 416) comprises: A first lateral outer end face (322, 422) extends along the assembly direction (306, 406, 506) and the vertical direction (310, 410, 510) and is laterally disposed adjacent to the attachment portion (302, 402, 502); a first lateral inner end face (324, 424) extends along the assembly direction (306, 406, 506) and is laterally disposed adjacent to the working portion (311, 411, 511); and a first transition surface (326, 426) is located between the first lateral outer end face (316, 416) and the first lateral inner end face (324, 424), and the first transition surface (326, 426) extends laterally.

3. The cutting edge tip (300, 400, 500) according to claim 2, wherein the first transition surface (326, 426) is perpendicular to the assembly direction (306, 406, 506), the first transverse outer end face (322, 422), and the first transverse inner end face (324, 424).

4. The cutting edge tip (300, 400, 500) according to claim 2, wherein the second transition surface (432) is perpendicular to the assembly direction (306, 406, 506), the second transverse outer end face (428) and the second transverse inner end face (430), the second transition surface (432) is spaced a predetermined distance (433) from the first transition surface (432) rearward along the assembly direction (306, 406, 506), and the first transverse end surface (416) is at least partially complementary in shape to the second transverse end surface (420).

5. The cutting edge tip (300, 400, 500) according to claim 4 further includes a drooping flange (334, 434) extending laterally from a flange side surface (336, 436) toward the attachment portion (302, 402, 502), the flange side surface (336, 436) being vertically disposed above the first laterally inner end face (324, 424), the drooping flange (334, 434) defining a first laterally inner end groove (438), the first laterally inner end groove (438) being defined by a rear surface (440) coplanar with or offset rearward from the second transition surface (432) and a third laterally inner end face (442) offset laterally inward from the first laterally inner end face (424); and The second lateral end portion (418, 518) defines a bottom recess (444, 544), which is defined by a third lateral outer end face (446, 546) that is laterally offset inward from the second lateral outer end face (428, 528), a third transition surface (448, 548) that extends laterally inward from the third lateral outer end face (446, 546) and is coplanar with the first transition surface (426) or forward offset from the first transition surface (426), and a fourth transition surface (450, 550) that extends rearward from the third transition surface (448, 548) along the assembly direction (306, 406, 506) and vertically upward from the third transition surface (448, 548).

6. A cutting edge tip (400), comprising: The attachment portion (402) defines an adapter receiving cavity (404), an assembly direction (406), a lateral direction (408) perpendicular to the assembly direction (406), and a vertical direction (410) perpendicular to the assembly direction (406) and the lateral direction (408); and The working portion (411) extends forward from the attachment portion (402) along the assembly direction (406) to form a front working edge (412). A first lateral end portion (414) is provided along the lateral direction, and the first lateral end portion (414) defines a first lateral end surface (416). as well as A second lateral end portion (418) is disposed opposite to the first lateral end portion (414) along the lateral direction, and the second lateral end portion (418) defines a second lateral end surface (420). The front working edge (412) includes: a first working edge portion (454) extending laterally inward from the first lateral end surface (416) at a first vertical level (456); a second working edge portion (458) extending from the first working edge portion (454) and positioned at a second vertical level (460) higher than the first vertical level (456) of the first working edge portion (454); and a third working edge portion (462) extending from the second working edge portion (458) to the second lateral end surface (420) and positioned at a third vertical level (464) higher than the second vertical level (460) of the second working edge portion (458). The second lateral end surface (420, 520) includes: a second lateral outer end surface (428, 528), which extends along the assembly direction (306, 406, 506) and is laterally disposed adjacent to the working portion (311, 411, 511); a second lateral inner end surface (430, 530), which extends along the assembly direction (306, 406, 506) and the vertical direction (310, 410, 510) and is laterally disposed adjacent to the attachment portion (302, 402, 502); and a second transition surface (432, 532), which is located between the second lateral outer end surface (428, 528) and the second lateral inner end surface (430, 530), and extends laterally.

7. The cutting edge tip (400) according to claim 6, wherein the first transverse end surface (416) extends from the first working edge portion (454) along the assembly direction (406) to the transition axis (465), and extends from the transition axis (465) at an inclined slope angle (468) with the assembly direction (406) to the first rear end (466) of the cutting edge tip.

8. The cutting edge tip (400) according to claim 7, wherein the second transverse end surface (420) extends from the third working edge portion (462) along the assembly direction (406) to a different transition axis (470), and extends from the different transition axis (470) to the second rear end (472) of the cutting edge tip at the same slope angle (468).

9. The cutting edge tip (400) according to claim 6, wherein the first transverse end portion (414) includes a socket (438), and the second transverse end portion (418) includes a tongue (480) configured to engage within the socket, the socket including a top fork portion (482), a bottom fork portion (486), and a connecting portion (488), the top fork portion (482) being disposed at a fourth vertical level (484) higher than the third vertical level (464) of the third working edge portion (462), the bottom fork portion (486) extending rearward from the first working edge portion (454) along the assembly direction (406), the connecting portion (488) connecting the top fork portion and the bottom fork portion, and the tongue (480) being laterally disposed away from the socket at the second vertical level (460) of the second working edge portion (458).

Images