JP3216473U - Replaceable edge body for work machine bucket and work machine bucket comprising the replaceable edge body - Google Patents

Abstract

[PROBLEMS] The present invention makes it possible to ensure the flushness of the bucket bottom surface and the bottom surface of the replaceable edge body while ensuring the ease of replacement work, and greatly reduces the cost and time burden during replacement. An exchangeable edge body for a work machine bucket is provided. An exchangeable edge body 1 for a work machine bucket according to the present invention is an exchangeable edge body for a work machine bucket 41 having a flat bucket bottom plate portion 43, and is provided on a bucket bottom plate portion of a bucket body 42. One end side is connected and the other end side is protruded forward from the working end surface 43a of the bucket bottom plate portion, the replaceable edge body support plate 2, the right side blade portion 11, one or more middle blade portions 21, the left side The blade portion 31 has a split continuous structure, the rear end side is joined over the entire work end surface, the front end side is flush, and the bottom surface is flush with the bucket bottom plate portion. And a plate-like leveling plate element 10 connected and supported in a detachable manner. [Selection] Figure 1

Description

  The present invention relates to an exchangeable edge body for a work machine bucket, and more specifically, while maintaining simplicity during replacement, the bottom face of the bucket and the bottom face of the exchangeable edge body are surely flush with each other, and can be used for slope finishing and leveling work. The present invention relates to a replaceable edge body for a work machine bucket having a flat bottom surface suitable for use in such leveling operations, and a work machine bucket including the replaceable edge body.

  Conventionally, in work machine buckets with flat bottom surfaces such as slope buckets, buckets for both slope and field, mainly for slope finishing and field maintenance, the edge body arranged at the tip of the bucket body is worn. When a state requiring replacement occurs, it is necessary to melt a part of the edge body and weld a new edge part again or replace the entire bottom plate of the bucket body.

  In this case, a high level welding technique is required even when a request is made to a bucket repair company or repaired in-house.

  Therefore, when replacing the edge body or the bottom plate, a large burden is caused in terms of cost and time.

  On the other hand, there is also a replaceable edge body as a manufacturer standard, but in this case, the bottom surface of the existing bucket body and the bottom surface of the replaceable edge body are not flush with each other and are not suitable for slope finishing or the like. The problem was included.

  In Patent Document 1, a reinforcing horizontal rib that is horizontally long and flat and is fixed to the back side thereof along the longitudinal direction thereof, and a push plate having front and rear excavation blades at the front and rear ends, respectively, A first pocket and a second pocket formed on the back side of the push plate with the opening part back and forth, and a mounting bracket fixed to the second pocket part to be attached to and detached from the boom of the excavator A bucket for slope construction work is proposed.

  However, even in the case of the slope construction bucket of Patent Document 1, no special measures are taken when the tip edge of the pressing plate functioning as a leveling plate is worn. In this case, it is estimated that a large burden is caused in terms of cost and time as in the case described above.

JP 2002-38513 A

  The present invention has been developed in view of the above circumstances, and can ensure the uniformity of the bottom surface of the bucket and the bottom surface of the replaceable edge body while realizing the simplicity of the replacement work, the cost of replacement, Provided are a replaceable edge body for a work machine bucket and a work machine bucket including the replaceable edge body, which can greatly reduce the burden on time.

  The present invention is an exchangeable edge body for a working machine bucket having a flat bucket bottom plate, wherein one end is connected to a bucket bottom plate of a bucket body in the working machine bucket, and the other end is connected to the bucket bottom plate. An exchangeable edge body support plate that protrudes forward from the work end surface at the tip of the part and the rear end side are joined over the entire work end surface, the front end side is flush, and the bottom surface is flush with the bucket bottom plate portion. And a plate-like leveling plate element connected and supported detachably via the exchangeable edge body support plate in the state.

  According to the first aspect of the present invention, it is possible to ensure the flushness between the bottom surface of the bucket and the bottom surface of the replaceable edge body while realizing the simplicity of the replacement work, thereby reducing the cost and time burden during replacement. A replaceable edge body for a work machine bucket that can be significantly reduced can be realized and provided.

  According to the invention of claim 2, one end side is connected to the bucket bottom plate portion of the bucket body in the work machine bucket, and the other end side is projected forward from the work end surface at the tip of the bucket bottom plate portion. It consists of a support plate, a left side blade part, a single or a plurality of middle blade parts, and a right side blade part. The rear end sides of the support plate are joined over the entire work end face, and the front end sides are flush with each other. And a plate-shaped leveling plate element that is detachably connected and supported via the replaceable edge body support plate in a state in which these bottom surfaces are flush with the bucket bottom plate portion, and is exchanged based on the configuration. While ensuring the simplicity of work, the bottom surface of the bucket and the replaceable edge body can be reliably secured, and the cost and time burden during replacement can be greatly reduced. Single or multiple middle blade part and right side blade part split structure is adopted, so the replacement type for work machine buckets that can accommodate other work machine buckets with flat bottom and different bucket width dimensions An edge body can be realized and provided.

  According to the invention of claim 3, one end side is connected to the bucket bottom plate portion of the bucket body in the work machine bucket, and the other end side is projected forward from the work end surface at the tip of the bucket bottom plate portion. A support plate and a flat, substantially rectangular plate that are integrally formed with the same width as the work end surface, the rear end side is joined over the entire work end surface, the front end side is flush, and the bottom surface is flush with the bucket bottom plate portion. In the state of the above, it is possible to replace the bucket bottom surface while realizing the simplicity of the replacement work, based on a structure having a monolithic leveling plate element that is detachably connected and supported via the replaceable edge body support plate. It is possible to ensure the same consistency with the bottom of the type edge body, greatly reduce the cost and time burden during replacement, and make the product stronger because the leveling plate elements are integrated. A work that can It can be provided to achieve a replaceable edge member for a machine bucket.

  According to the invention described in claim 4, in the device described in any one of claims 1 to 3, a blade selected from a rectangular shape, a saw blade shape, or a fork shape is provided at the tip of the leveling plate element. Since the edge portion is formed, the effect of the device according to any one of claims 1 to 3 can be obtained, and not only leveling and leveling work but also ground excavation work can be performed. A replaceable edge body for a work machine bucket can be realized and provided.

  According to the invention described in claim 5, in the invention described in claim 2, the left side blade part, the single or plural middle blade parts, and the adjacent side parts of the right side blade part are adjacent to each other. Since the hook mechanism portion for increasing the coupling force is provided, the working machine can achieve the effect of the device according to claim 2 and a product having a high coupling force between adjacent blade portions and a higher strength. An exchangeable edge body for a bucket can be realized and provided.

  According to the invention of claim 6, one end of the bucket body is connected to the flat bucket bottom plate portion of the bucket body, and the other end side is projected forward from the working end surface at the tip of the bucket bottom plate portion. And a left side blade portion, a single or a plurality of middle blade portions, and a right side blade portion divided continuous structure, these rear end sides are joined over the entire work end surface, the front end side is flush, A plate-like leveling plate element that is detachably connected and supported via the exchangeable edge body support plate in a state in which these bottom surfaces are flush with the bucket bottom plate portion. Therefore, it is possible to realize and provide a work machine bucket that realizes the simplicity of the exchange work of the exchangeable edge body and can greatly reduce the cost and time burden during the exchange.

  According to the seventh aspect of the present invention, the replaceable edge body support plate having one end connected to the flat bucket bottom plate portion of the bucket body and the other end projecting forward from the working end surface at the tip of the bucket bottom plate portion. And a flat, substantially rectangular plate that is integrally formed with the same width as the working end surface, the rear end side is joined over the entire working end surface, the front end side is flush, and the bottom surface is flush with the bucket bottom plate portion. Since it has a replaceable edge body having a higher-strength leveling plate element in an integrated structure that is detachably connected and supported via the replaceable edge body support plate in a state, it is easy to replace the replaceable edge body Thus, it is possible to realize and provide a work machine bucket that can greatly reduce the cost and time burden at the time of replacement and is excellent in durability of the replaceable edge body.

  According to the invention described in claim 8, the effect of the invention described in claim 6 or 7 is achieved, and a work machine bucket capable of executing not only leveling and leveling work but also ground excavation work is provided and provided. be able to.

  According to the ninth aspect of the present invention, the working machine bucket having the effect of the sixth aspect of the invention and having a leveling plate element having a high connecting force between adjacent blade portions and a higher strength is provided and provided. can do.

  The right side blade portion and the left side blade portion of the replaceable edge body according to claims 1 to 9 have the effects of claims 1 to 9 and wear of the left and right bucket side plates in the work machine bucket. The effect | action and effect which reduce can be exhibited.

FIG. 1 is a schematic partial perspective view showing a work machine bucket including a replaceable edge body according to Embodiment 1 of the present invention. FIG. 2 is a schematic perspective view of the leveling plate element in the replaceable edge body according to the first embodiment. FIG. 3 is a partially enlarged cross-sectional view showing a hook mechanism portion provided on the leveling plate element in the replaceable edge body according to the first embodiment. FIG. 4 is a schematic plan view showing a first modification of the leveling plate element in the replaceable edge body according to the first embodiment. FIG. 5 is a schematic plan view showing a second modification of the leveling plate element in the replaceable edge body according to the first embodiment. FIG. 6 is a schematic plan view showing a third modification of the leveling plate element in the replaceable edge body according to the first embodiment. FIG. 7 is a schematic perspective view of a leveling plate element according to the second embodiment of the present invention.

  The present invention realizes the simplicity of the replacement work, ensures the flushness between the bottom of the bucket and the bottom of the replaceable edge body, and can greatly reduce the cost and time burden during replacement. An object of providing and providing a replaceable edge body for a bucket is a replaceable edge body for a work machine bucket having a flat bucket bottom plate portion, on the bucket bottom plate portion of the bucket body of the work machine bucket. One end side is connected, and the other end side protrudes forward from the working end surface of the bucket bottom plate portion, a replaceable edge body support plate, a left side blade portion, one or more middle blade portions, a right side blade portion A state in which the rear end side is joined over the entire work end surface, the front end sides thereof are flush with each other, and the bottom surfaces thereof are flush with the bucket bottom plate portion. It was realized by the configuration with a removably connected to and supported by a plate-like leveling plate element by the replaceable edge member support plate.

  Hereinafter, a replaceable edge body for a work machine bucket according to an embodiment of the present invention and a work machine bucket including the replaceable edge body will be described in detail with reference to the drawings.

Example 1
A replaceable edge body 1 for a work machine bucket 41 having a flat bottom surface and a work machine bucket 41 including the replaceable edge body 1 according to the first embodiment will be described with reference to FIGS. 1 to 3.

  The working machine bucket 41 according to the first embodiment includes a bucket body 42. The bucket body 42 has a flat bottom surface and a bucket bottom plate portion 43 having a straight working end surface 43a on the distal end side, and the bucket bottom plate portion. 43 has a right bucket side plate portion 44 erected in the right side region of 43 and a left bucket side plate portion 45 erected in the left side region of the bucket bottom plate portion 43.

  The protruding lower end portion of the right bucket side plate portion 44 has a shape that protrudes forward with an acute angle shape from the work end surface 43a. Similarly, the projecting lower end portion of the left bucket side plate portion 45 has a shape projecting forward with an acute angle shape from the work end surface 43a.

  As shown in FIG. 1, the replaceable edge body 1 according to the first embodiment includes a horizontally long and flat replaceable edge body support plate 2, and a leveling plate element 10 having a five-piece split connection structure, which will be described in detail later. have.

The replaceable edge body support plate 2 is formed in a rectangular plate shape whose long side dimension is the same as that of the work end surface 43a on the tip side of the bucket bottom plate portion 43, and one end side in the short side direction is formed on the bucket bottom plate portion. 43 is attached to the bucket bottom plate 43 by a bolt 3 as a fastener.
The connection between the one end side in the short side direction of the exchangeable edge body support plate 2 and the bucket bottom plate portion 43 may be a connection structure using welding means instead of fastening with the bolt 3 shown in the figure.

Although only one bolt 3 for connecting the replaceable edge body support plate 2 and the bucket bottom plate portion 43 is shown in FIG. 1, depending on the width dimension W of the replaceable edge body support plate 2 and the bucket bottom plate portion 43. Are used.
Similarly, when the connection between the one end side in the short side direction of the replaceable edge body support plate 2 and the bucket bottom plate portion 43 is replaced with the fastening by the bolt 3, and the connection structure is formed by welding means, the replaceable type A plurality of locations are welded according to the width dimension W of the edge body support plate 2 and the bucket bottom plate portion 43.

  The replaceable edge body support plate 2 has the other end side in the short side direction protruding forward from the work end surface 43a of the bucket bottom plate portion 43, and a right side constituting a part of the leveling plate element 10 on the lower surface side thereof. The side blade portion 11, for example, three middle blade portions 21, and the upper side of the left side blade portion 31 are arranged in a joined state, and the right side blade portion 11, for example, three middle blade portions 21, left side blade Each rear end side of the portion 31 is joined to the working end surface 43a, and each bottom surface of the right side blade portion 11, for example, the three middle blade portions 21 and the left side blade portion 31, is connected to the bucket bottom plate portion. These are configured to be detachably connected using bolts 7, washers 8, and nuts 9 as fasteners in a state of being flush with the bottom surface of 43.

  That is, in the replaceable edge body 1 according to the first embodiment, the right side blade portion 11, for example, the three middle blade portions 21 and the left side blade portion 31 are all formed to have the same thickness and are densely formed. A five-piece divided connection structure that is connected and linearly connected to each other is configured to be detachably supported by the replaceable edge body support plate 2 so as to protrude forward from the work end surface 43a.

  As shown in FIG. 1 and FIG. 2, the right side blade portion 11 constituting a part of the leveling plate element 10 has an end surface portion at a projecting lower end portion of the right bucket side plate portion 44 in the work machine bucket 41. The inclined piece 12 to be joined and the right side blade side piece 13 to join the outer surface area of the projecting lower end are integrally configured, and the right piece 14 having a substantially inverted L shape as a whole and the right piece 14 are integrally formed in an orthogonal arrangement. And a right side blade piece 15 that functions as a part of the leveling plate element 10 in a substantially rectangular parallelepiped shape with a flat bottom surface.

  The right side blade side piece 13 is provided with three bolt holes 13a for bolt connection to the projecting lower end outer surface region of the right bucket side plate portion 44.

  Further, the right side blade piece 15 is provided with an insertion hole 16 for a bolt 7 as a fastener, and a recessed portion 17 is formed in an outer region of the insertion hole 16, and further, a blade edge portion is formed on the tip edge side. 18 is formed.

  Then, the end surface portion at the projecting lower end portion of the right bucket side plate portion 44 in the work machine bucket 41 is joined to the inclined piece 12 in the right side blade portion 11, and the projecting lower end portion outer surface region is joined to the right side blade side piece. 13, and in this state, the three bolts 4 are respectively inserted into the three bolt holes 13 a, and the right bucket side plate portion 44 is penetrated to protrude inward of the bucket body 42. The right side piece 14 of the right side blade portion 11 is detachably attached to the projecting lower end portion of the bucket side plate portion 44 using a nut 6.

  At this time, the right side blade piece 15 has a rear end side joined to the working end surface 43a, and a region in the vicinity of the protruding lower end portion of the right bucket side plate portion 44 in a state where the blade edge portion 18 on the front end edge side protrudes forward. It is arrange | positioned in the horizontal state inside the lower part of this, and is detachably supported by the said exchangeable edge body support plate 2 using the volt | bolt 7, the washer 8, and the nut 9 which are fasteners.

  The left side blade portion 31 includes an inclined piece 32 that joins the end surface portion at the projecting lower end portion of the left bucket side plate portion 45 in the work machine bucket 41, and a left side blade side piece 33 that joins the projecting lower end portion outer surface area. A left side piece 34 having a substantially L shape as a whole, and a left side piece 34 that is integrally formed in an orthogonal arrangement with the left side piece 34 and that functions as part of the leveling plate element 10 in a substantially rectangular parallelepiped shape with a flat bottom surface. Side blade piece 35.

  The left side blade side piece 33 of the left side piece 34 is provided with three bolt holes 33a for bolt connection to the outer surface area of the projecting lower end portion of the left bucket side plate portion 44.

  Further, the left side blade piece 35 is provided with an insertion hole 36 for a bolt 7 as a fastener, and a recessed portion 37 is formed in an outer region of the insertion hole 36, and further, a blade edge portion is formed on the tip edge side. 38 is formed.

  Then, the end surface portion at the projecting lower end portion of the left bucket side plate portion 45 in the work machine bucket 41 is joined to the inclined piece 32 in the left piece 34, and the projecting lower end portion outer surface region is joined to the left side blade side piece 33. In this state, as in the case described above, the three bolts 4 are respectively inserted into the three bolt holes 33a, and the left bucket side plate portion 45 is penetrated to protrude inward of the bucket body 42, The left side piece 34 of the left side blade portion 31 is detachably attached to the projecting lower end portion of the bucket side plate portion 44 using a washer 5 and a nut 6.

  At this time, the rear side of the left side blade piece 35 is joined to the working end surface 43a, and the vicinity of the protruding lower end portion of the left bucket side plate portion 45 in a state where the blade edge portion 38 on the front end edge side protrudes forward. It is arranged in a horizontal state on the lower inner side, and is detachably supported by the replaceable edge body support plate 2 using bolts 7, washers 8 and nuts 9 which are fasteners as in the case described above.

  Each of the three middle blade portions 21 is formed of a middle blade piece 22 that has a flat bottom surface and is formed in a substantially rectangular parallelepiped shape wider than the right side blade portion 11 and functions as a part of the leveling plate element 10. Each of the middle blade pieces 22 is provided with two insertion holes 26 for bolts 7 as fasteners in a separate arrangement, and a recessed portion 27 is formed in the outer region of each insertion hole 26. As in the case described above, the blade edge portion 28 is formed on the tip edge side.

  These three middle blade portions 21 are arranged between the right side blade portion 11 and the left side blade portion 31 in a continuous state, and use bolts 7, washers 8 and nuts 9 which are the fasteners, respectively. And is detachably supported by the replaceable edge body support plate 2.

  1 and 2 show the three middle blade portions 21, but the present invention is not limited to this. One, two, and four blades 21 may be used depending on the size of the work machine bucket 41 in the width direction. Needless to say, the required number is arranged.

  In the replaceable edge body 1 of the first embodiment, the right side blade piece 15, the three middle blade pieces 22, and the left side blade piece 35 are respectively provided with a total of four hook mechanism portions 51 between adjacent sides. It is provided in a separate arrangement state.

  Here, as a representative example, the hook mechanism portion 51 provided between the adjacent sides of the right side blade piece 15 and the middle blade piece 22 will be described with reference to FIG.

  In the right side blade piece 15, the hook mechanism portion 51 has an upper surface of the right side blade piece 15 from the side side center portion of the right side blade piece 15 toward the side side center portion side of the middle blade piece 22. An engagement convex portion 52 having a thickness approximately half of the thickness of the right side blade piece 15 is provided in a state flush with the upper surface, and the right side blade piece 15 has a right side central portion on the right side. An engagement concave portion 53 having a shape in which an engagement convex portion 55 of the middle blade piece 22 described later is closely engaged toward the inside of the side blade piece 15 is provided.

  Further, the middle blade piece 22 is provided with an engagement concave portion 54 in which the engagement convex portion 52 is closely engaged in the inner region of the central portion of the side of the middle blade piece 22. An engaging convex portion 55 is provided so as to be closely engaged with the engaging concave portion 53 of the right side blade piece 15 in a continuous state and in a state where the bottom surface is flush with the bottom surface of the middle blade piece 22. .

  Then, the engaging convex portion 52 of the right side blade piece 15 is engaged with the engaging concave portion 54 of the middle blade piece 22, and the engaging convex portion 55 of the middle blade piece 22 is engaged with the right side blade piece 15. By engaging with the engaging recess 53, the adjacent side sides of the right side blade piece 15 and the middle blade piece 22 are closely joined to each other while maintaining the flatness between the bottom surface and the top surface, And it is comprised so that the connection power between these both may be raised.

  A similar hook mechanism 51 is provided between the adjacent middle blade pieces 22 and 22 and between the middle blade piece 22 and the left side blade piece 35 so as to increase the connecting force between the adjacent ones as described above. ing.

In the replaceable edge body 1 of the first embodiment described above, the right side blade portion 11, for example, the three middle blade portions 21 and the left side blade portion 31 are all formed to have the same thickness and are dense. A five-piece connecting structure that is connected in a straight line and is connected to the right bucket side plate portion 44 and the left bucket side plate portion 45 using the bolt 7, the washer 8, and the nut 9 as fasteners. Since it is detachably supported by the replaceable edge body support plate 2, the right side blade portion 11, for example, the three middle blade portions 21, constituting the leveling plate element 10, even when performing the replacement work, While realizing the simplicity of the replacement work of the left side blade portion 31, it is possible to reliably ensure the flushness between the bucket bottom plate portion 43 and the bottom surface of the replaceable edge body 1 even after replacement, time The burden can be greatly reduced, it is possible to provide a replaceable edge member 1 for a work machine bucket 41 that can be performed efficiently slope maintenance work and the like.
Moreover, according to the work machine bucket 41 provided with the replaceable edge body 1 of the first embodiment, the replaceable edge body 1 is easily replaced, and the cost and time burden during the replacement are greatly reduced. This makes it possible to efficiently carry out slope maintenance work and the like.

Further, since the hook mechanism portions 51 are provided between the adjacent sides of the right side blade piece 15, the three middle blade pieces 22, and the left side blade piece 35, each of the leveling plate elements 10 is configured as described above. The connection force between the members can be increased.
Further, according to the work machine bucket 41 to which the replaceable edge body 1 including the leveling plate element 10 including the hook mechanism 51 is attached, the connecting force between the members constituting the leveling plate element 10 is high. Therefore, troubles such as dropping off of the leveling plate element 10 due to breakage of the bolt 7 or the like can be reduced.

  Next, first to third modifications of the leveling plate element 10 in the replaceable edge body 1 according to the first embodiment will be described with reference to FIGS. 4 to 6.

  4 to 6, the same elements as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 4 shows a first modified example of the leveling plate element 10, and this first modified example includes the right side blade piece 15, the three middle blade pieces 22, and the tips of the left side blade pieces 35. The example which provided the rectangular blade edge part 61 over the whole edge part is shown.

  FIG. 5 shows a second modified example of the leveling plate element 10, and this second modified example includes the right side blade piece 15, the three middle blade pieces 22, and the tips of the left side blade pieces 35. An example in which a saw blade-like blade edge portion 62 is provided over the entire edge portion is shown.

  FIG. 6 shows a third modified example of the leveling plate element 10, and this third modified example includes the right side blade piece 15, the three middle blade pieces 22, and the tips of the left side blade pieces 35. The example which provided the fork-like blade edge part 63 over the whole edge part is shown.

An exchangeable edge body employing the leveling plate element 10 having the shape of the tip edge selected from the rectangular blade edge portion 61, the saw blade shape blade edge portion 62, and the fork shape blade edge portion 63. By adopting 1, there is an advantage that not only leveling and leveling work but also different uses such as ground excavation work can be performed.
Further, according to the work machine bucket 41 to which the replaceable edge body 1 employing the leveling plate element 10 described above is attached, the work machine bucket 41 is not limited to leveling and leveling work as it is, but is used for different purposes such as ground excavation work. It becomes possible to cope with.

  In these cases, there is no need to separately prepare a dedicated bucket for ground excavation work, and it is possible to improve work efficiency and reduce equipment costs for work equipment and the like.

(Example 2)
Next, the work machine bucket 41 including the leveling plate element 10A and the replaceable edge body 10A according to the second embodiment of the present invention will be described with reference to FIG.

  Unlike the leveling plate element 10 according to the first embodiment, the leveling plate element 10A according to the second embodiment is characterized by an integral structure as a whole.

  That is, the leveling plate element 10A according to the second embodiment has the same shape as that of the leveling plate element 10 according to the first embodiment, and the right bucket side plate portion 44 and the left bucket side plate portion of the work machine bucket 41. The right side piece 71 and the left side piece 72 are attached to the left and right ends, and the lower part of the right side piece 71 and the left side piece 72 is formed in a flat, substantially rectangular plate shape with a rear end side having the same width as the work end face 43a. The rear end side is joined over the entire work end face 43a, the front end side is flush, and the bottom face is flush with the bucket bottom plate portion 43 by an integral blade piece 81, so that the whole is integrated. is there.

  The integrated blade piece 81 is provided with eight insertion holes 82 for the bolts 7 in a separate arrangement in the length direction, and a total of eight recessed portions 83 are provided in a separate arrangement in the peripheral region of each insertion hole 82.

  The integral blade piece 81 forms a blade edge portion 84 over the entire tip edge.

  Further, the right piece 71 and the left piece 72 are respectively provided with three bolt holes 71a and 72a similar to those described above.

Although not shown in the leveling plate element 10A according to the second embodiment, the shape of the tip edge portion of the integral blade piece 81 is a rectangular blade edge portion 61 as in the first embodiment. By adopting a shape selected from the saw blade-shaped blade edge portion 62 and the fork-shaped blade edge portion 63, the same effect as in the case of the first embodiment can be exhibited.
In addition, the work machine bucket 41 to which the integrated blade piece 81 having such a leveling plate element 10A is attached can exhibit the same effects as those in the first embodiment.

  Further operational effects of the leveling plate element 10 of the first embodiment described above, the leveling plate element 10A of the second embodiment, and the work machine bucket 41 using these will be listed below.

(1) In the above-described work machine bucket 41, when replacing the leveling plate element 10 or the leveling plate element 10A, commonly used bolts 7 and nuts 9 can be used, and special tools should be used. It can be easily replaced without any change, and maintenance costs and time can be saved significantly.

(2) In the leveling plate element 10 or the leveling plate element 10A, the right side piece 14, the left side piece 34, or the right side piece 71, the left side piece 72 functions to protect the side edge of the work machine bucket 41. Therefore, it is possible to prevent wear of the work machine bucket 41 in the light excavation work as well as the ground leveling work.

(3) The leveling plate element 10 of the first embodiment or the leveling plate element 10A of the second embodiment is partially modified not only for the work machine bucket 41 prepared for exclusive use but also for the existing standard bucket. It can be attached by applying, and it becomes possible to change an existing standard bucket into a bucket capable of exchanging edges.

(4) Since the leveling plate element 10 of the first embodiment has a five-piece continuous connection structure, a wider range of bucket width sizes can be supported.

(5) Since the leveling plate element 10A of Example 2 integrates each element, the width dimension is limited thereby, but the product can be made stronger.

(6) Since the leveling plate element 10 of the first embodiment is provided with the hook mechanism 51, not only fastening with bolts 7, nuts 9 and the like, but also the hook mechanism 51 enables more firm attachment. Troubles such as dropping due to breakage of the bolts 7 and the like can be reduced.

  Note that the hook mechanism 51 can be provided at a plurality of locations as required, such as at a side surface other than the bottom surface of the leveling plate element 10 or a top surface where a flat surface is required.

  Further, as described above, the right side blade portion 11 and the left side blade portion 31 of the replaceable edge body 1 in the first and second embodiments are worn by the left and right bucket side plate portions 45, 45 in the work machine bucket 41. The effect | action and effect which reduce can be exhibited.

  The replaceable edge body for a work machine bucket according to the present invention can be widely used for a work machine bucket having a flat bottom surface used for residential land development, field maintenance, road maintenance, and the like.

DESCRIPTION OF SYMBOLS 1 Replaceable edge body 2 Replaceable edge body support plate 3 Bolt 4 Bolt 5 Washer 6 Nut 7 Bolt 8 Washer 9 Nut 10 Leveling plate element 10A Leveling plate element 11 Right side blade part 12 Inclined piece 13 Right side blade side piece 13a Bolt hole 14 Right piece 15 Right side blade piece 16 Insertion hole 17 Recessed portion 18 Blade edge portion 21 Middle blade portion 22 Middle blade piece 26 Insertion hole 27 Recessed portion 28 Blade edge portion 31 Left side blade portion 32 Inclined piece 33 Left side Blade side piece 33a Bolt hole 34 Left side piece 35 Left side blade piece 36 Insertion hole 37 Recessed part 38 Blade edge part 41 Work machine bucket 42 Bucket body 43 Bucket bottom plate part 43a Work end face 44 Right bucket side plate part 45 Left bucket side plate part 51 Hook mechanism 52 Engaging convex part 53 Engaging concave part 54 Engaging concave part 55 Engaging convex part 61 Blade edge part 62 Blade edge part 63 Blade edge part 71 Right piece 71a Bolt hole 72 Left piece 72a Bolt hole 81 Integrated blade piece 82 Insertion hole 83 Recessed part 84 Blade edge part W Width dimension

Claims (9)

An exchangeable edge body for a work machine bucket having a flat bucket bottom plate,
One end side is connected to the bucket bottom plate portion of the bucket body in the work machine bucket, and the other end side is protruded forward from the work end surface of the tip of the bucket bottom plate portion, and an exchangeable edge body support plate,
A plate that is detachably coupled and supported via the replaceable edge body support plate in a state where the rear end side is joined over the entire working end surface, the front end side is flush, and the bottom surface is flush with the bucket bottom plate portion. A leveling plate element,
A replaceable edge body for a work machine bucket, characterized by comprising: An exchangeable edge body for a work machine bucket having a flat bucket bottom plate,
One end side is connected to the bucket bottom plate portion of the bucket body in the work machine bucket, and the other end side is protruded forward from the work end surface of the tip of the bucket bottom plate portion, and an exchangeable edge body support plate,
It consists of a left side blade part, a single or a plurality of middle blade parts, and a right side blade part divided continuous structure. These rear end sides are joined over the entire working end face, and the front end sides thereof are flush with each other. A plate-like leveling plate element that is detachably coupled and supported via the replaceable edge body support plate in a state where the bottom surface is flush with the bucket bottom plate portion;
A replaceable edge body for a work machine bucket, characterized by comprising: An exchangeable edge body for a work machine bucket having a flat bucket bottom plate,
One end side is connected to the bucket bottom plate portion of the bucket body in the work machine bucket, and the other end side is protruded forward from the work end surface of the tip of the bucket bottom plate portion, and an exchangeable edge body support plate,
A flat, substantially rectangular plate that is integrally formed to have the same width as the working end surface, with the rear end side joined over the entire working end surface, the front end side being flush, and the bottom surface being flush with the bucket bottom plate portion. An integrally structured leveling plate element that is detachably connected and supported via the replaceable edge body support plate;
A replaceable edge body for a work machine bucket, characterized by comprising:   The blade edge part selected from rectangular shape, a saw blade shape, or a fork shape is formed in the front-end | tip of the said leveling plate element, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. Replaceable edge body for work machine buckets.   The left side blade portion, the one or more middle blade portions, and the adjacent side portions of the right side blade portion are each provided with a hook mechanism portion that enhances the connecting force between adjacent ones. A replaceable edge body for a work machine bucket according to claim 2. One end side is connected to the flat bucket bottom plate part of the bucket body, and the other end side protrudes forward from the work end surface at the tip of the bucket bottom plate part, and an exchangeable edge body support plate,
It consists of a left side blade part, a single or a plurality of middle blade parts, and a right side blade part divided continuous structure. These rear end sides are joined over the entire working end face, and the front end sides thereof are flush with each other. A plate-like leveling plate element that is detachably coupled and supported via the replaceable edge body support plate in a state where the bottom surface is flush with the bucket bottom plate portion;
A work machine bucket comprising a replaceable edge body having One end side is connected to the flat bucket bottom plate part of the bucket body, and the other end side protrudes forward from the work end surface at the tip of the bucket bottom plate part, and an exchangeable edge body support plate,
A flat, substantially rectangular plate that is integrally formed to have the same width as the working end surface, with the rear end side joined over the entire working end surface, the front end side being flush, and the bottom surface being flush with the bucket bottom plate portion. An integrally structured leveling plate element that is detachably coupled and supported via the replaceable edge body support plate;
A work machine bucket comprising a replaceable edge body having   The blade edge part selected from rectangular shape, saw blade shape, or fork shape is formed in the front-end | tip of the leveling plate element in the said exchangeable edge body, The Claim 6 or 7 characterized by the above-mentioned. Work machine bucket.   The left side blade portion, the single or plural middle blade portions, and the adjacent side portions of the right side blade portion in the replaceable edge body are each provided with a hook mechanism portion that increases the connection force between adjacent ones. The work machine bucket according to claim 6.

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