Crawler cover component

Abstract

Bolt insertion hole of It can be attached to shoe plates that do not have one, and it is easy to attach and detach from the shoe plate, and comes in different sizes to match the width of the shoe plate. preparation To provide a crawler cover component that does not require any additional work. [Solution] This is a cover member A that covers the crawler track of heavy machinery. It comprises a first locking body 1 that locks onto one edge E1 in the width direction W of the shoe plate S of the crawler track, a second locking body 2 that locks onto the other edge E2 in the width direction W of the shoe plate S, a first ground contact body 11 fixed to the first locking body 1, a second ground contact body 12 fixed to the second locking body 2, and a connecting body 3 that connects the first ground contact body 11 and the second ground contact body 12. The elastic body 4A of the first ground contact body 11 and the elastic body 4B of the second ground contact body 12 make contact with the ground.

Description

Technical Field

[0001] The present invention relates to a cover member that covers a crawler provided in a heavy machine in order to protect a road surface or the like.

Background Art

[0002] Many heavy machines for civil engineering, construction, or transportation work are equipped with crawlers (tracks) in order to perform operations such as moving on uneven ground or working at sites with slopes. In mainly large heavy machines, since the crawlers are made of iron, in order to protect the paved roads, work sites through which the heavy machines pass, or the loading platforms of trailers or the decks of ships during transportation, a cover member that can be attached to and detached from an iron shoe plate (tread plate) is used (see, for example, Patent Document 1).

[0003] The crawler cover member (elastic pad) of Patent Document 1 includes a core material 4 attached to the outer peripheral side of a tread plate 1, an elastic material 5 adhered to the outer peripheral side of the core material 4, and a nut 11 provided on the outer peripheral side of the core material 4. The attachment of the crawler cover member of Patent Document 1 to the tread plate 1 is performed by a bolt 14. That is, the bolt 14 is screwed into the nut 11 from the back side of the tread plate 1 through the through holes of the tread plate 1 and the core material 4.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The crawler cover member described in Patent Document 1 can only be attached to track plates 1 that have bolt insertion holes 9 (see Figure 1 in Patent Document 1). Furthermore, the work of attaching the bolt 14 to the nut 11 and removing the bolt 14 from the nut 11 from the underside of the track plate 1 is inefficient. Consequently, coupled with the need to perform this work on a large number of track plates 1, attaching and detaching the crawler cover member to the track plates 1 requires considerable effort and time. Moreover, it is necessary to prepare crawler cover members in different sizes to match the width of the track plate 1.

[0006] This invention relates to a bolt insertion hole of The objective is to provide a crawler cover component that can be attached to shoe plates without existing ones, offers good ease of attachment and detachment to the shoe plate, and eliminates the need to prepare different sizes to match the width of the shoe plate. [Means for solving the problem]

[0007] A crawler cover member according to a first aspect of the present invention is a cover member that covers a crawler equipped on heavy machinery. It comprises a first locking body that locks onto one edge in the width direction of the shoe plate of the crawler, a second locking body that locks onto the other edge in the width direction of the shoe plate, a first ground contact body attached to the first locking body, a second ground contact body attached to the second locking body, and a connecting body that connects the first ground contact body and the second ground contact body on the surface side of the shoe plate, or a connecting body that connects the first locking body and the second locking body on the surface side. The elastic bodies of the first ground contact body and the elastic bodies of the second ground contact body make contact with the ground.

[0008] According to the crawler cover member relating to the first aspect, when the crawler cover member is attached around the entire circumference of the crawler, the steel shoe plate does not make contact with the ground, but the elastic body of the first contact body and the elastic body of the second contact body of the crawler cover member attached to the shoe plate make contact with the ground. Therefore, it is possible to protect paved roads and work sites through which heavy machinery equipped with steel crawlers passes, or the cargo bed of a trailer or the deck of a ship when it is being transported.

[0009] Furthermore, the state in which the first locking body and the second locking body are locked to the shoe plate is maintained by a connecting body that connects the first grounding body and the second grounding body on the surface side of the shoe plate, or by a connecting body that connects the first locking body and the second locking body on the surface side of the shoe plate. Therefore, the bolt insertion hole of It can be attached to shoe plates that do not have a shoe plate, and since there is no need to work from the back of the shoe plate, the ease of attachment and detachment to the shoe plate is improved. Furthermore, since the distance between the first locking body and the second locking body can be adjusted with the connecting body, there is no need to prepare crawler cover members for each size to match the width of the shoe plate.

[0010] A crawler cover member according to a second aspect of the present invention is a crawler cover member according to a first aspect, wherein the connecting body fastens the first ground contact body and the second ground contact body using bolts in the width direction that are stretched between them, or fastens the first locking body and the second locking body using bolts in the width direction that are stretched between them.

[0011] A crawler cover member according to a third aspect of the present invention is a crawler cover member according to a first aspect, wherein the connecting body is an insert sleeve in the width direction provided on one of the first ground body and the second ground body, an insert screw in the width direction provided on the other of the first ground body and the second ground body, and a bolt that is screwed into the threaded hole of the insert screw through the through hole of the insert sleeve.

[0012] According to the crawler cover member relating to the second or third viewpoint, the crawler cover member can be attached to and detached from the shoe plate by working from the side of the shoe plate to tighten and loosen bolts in the width direction of the shoe plate, thereby improving the workability of attaching and detaching the crawler cover member to and from the shoe plate. Furthermore, the structure of the connecting body that connects the first and second contact bodies of the crawler cover member on the surface side of the shoe plate becomes simpler.

[0013] A crawler cover member according to a fourth aspect of the present invention, in the crawler cover member according to a first aspect, is attached to the first locking body by screwing a bolt into a threaded hole in the thickness direction of an insert screw in the shoe plate provided in the first grounding body through a through hole in the thickness direction provided in the first locking body, and the second grounding body is attached to the second locking body by screwing a bolt into a threaded hole in the thickness direction of an insert screw provided in the second grounding body through a through hole in the thickness direction provided in the second locking body.

[0014] According to the crawler cover member relating to the fourth perspective, with the crawler cover member removed from the shoe plate, the bolts in the thickness direction of the shoe plate are loosened. Yo Therefore, the first grounding member can be removed from the first locking member, and the second grounding member can be removed from the second locking member. Thus, worn first and second grounding members can be easily replaced. [Effects of the Invention]

[0015] The crawler cover member according to the present invention can protect paved roads and the like that used by heavy machinery equipped with iron crawlers, and has bolt insertion holes. of It can be attached to shoe plates that do not have one, and it is easy to attach and detach from the shoe plate. There is no need to prepare crawler cover parts in different sizes to match the width of the shoe plate. [Brief explanation of the drawing]

[0016] [Figure 1] This is a perspective view showing only a portion of the crawler with a crawler cover member according to an embodiment of the present invention attached to the shoe plate of the crawler of heavy machinery. [Figure 2] This is an exploded perspective view of the shoe plate and the crawler cover member, as seen from the surface side. [Figure 3] This is an exploded perspective view of the shoe plate and the crawler cover member, as seen from the back side. [Figure 4]A front cross-sectional view of the crawler cover member attached to the shoe plate. [Figure 5] An exploded perspective view of the first locking body and the first grounding body, and an exploded perspective view of the second locking body and the second grounding body. [Figure 6] A perspective view similar to FIG. 1, showing an example in which the crawler cover member is attached to a crawler having a smaller width than the crawler of FIG. 1. [Figure 7] A front cross-sectional view similar to FIG. 4, showing an example in which the crawler cover member is attached to the shoe plate of the crawler of FIG. 6.

Embodiments for Carrying out the Invention

[0017] Hereinafter, embodiments according to the present invention will be described based on the drawings. In the accompanying drawings, a view seen from the moving direction of the crawler is taken as a front view.

[0018] [Crawler Cover Member] As shown in FIG. 1, the crawler cover member A according to an embodiment of the present invention is a member that covers the crawler C provided in a heavy machine, and is attached to the shoe plate S of the crawler C. The shoe plate S is made of iron. The grounding surfaces 11A and 12A of the crawler cover member A are grounded.

[0019] As shown in FIGS. 2 to 4, the crawler cover member A includes a first locking body 1 and a second locking body 2, a first grounding body 11 and a second grounding body 12, and a connecting body 3. The first locking body 1 is locked to one edge E1 in the width direction W of the shoe plate S, and the second locking body 2 is locked to the other edge E2 in the width direction W of the shoe plate S.

[0020] A first grounding body 11 having an elastic body 4A is attached to a first locking body 1, and a second grounding body 12 having an elastic body 4B is attached to a second locking body 2. The elastic bodies 4A and 4B are, for example, natural rubber, synthetic rubber, thermoplastic elastomer, or synthetic resin, and the first locking body 1 and the second locking body 2 are made of metal. The grounding surface 11A of the first grounding body 11 is the surface of the elastic body 4A, and the grounding surface 12A of the second grounding body 12 is the surface of the elastic body 4B.

[0021] As shown in Figure 2-3, the first locking body 1 consists of, for example, first locking pieces 1A and 1B, and the second locking body 2 consists of, for example, second locking pieces 2A and 2B. The first locking body 1 and the second locking body 2 only need to be attachable to the shoe plate S to which they are attached, and are not limited to the configuration, shape, and size of this embodiment.

[0022] As shown in Figure 4, the connecting body 3 connects the first grounding body 11 and the second grounding body 12 at the surface side F of the shoe plate S. The connecting body 3 may also connect the first locking body 1 and the second locking body 2 at the surface side F.

[0023] The connecting body 3 is, for example, one that fastens the first grounding body 11 and the second grounding body 12 using bolts in the width direction W that are stretched between them, or one that fastens the first locking body 1 and the second locking body 2 using bolts in the width direction W that are stretched between them.

[0024] An example of the connecting body 3 shown in Figure 4 is an insert sleeve 6 in the width direction W provided on the first grounding body 11, an insert screw 7 in the width direction W provided on the second grounding body 12, and a bolt 5A that is screwed into the threaded hole 7A of the insert screw 7 through the through hole 6A of the insert sleeve 6. According to this example of the connecting body 3, the structure of the connecting body 3 that connects the first grounding body 11 and the second grounding body 12 of the crawler cover member A on the surface side F of the shoe plate S is simplified.

[0025] [Attaching crawler cover components to the crawler] The shoe plate S of the crawler C has, for example, three groovers G1, G2, and G3 as shown in Figure 2-3. As shown in Figure 2-3, the first locking body 1 is locked to the edge E1 of the shoe plate S so that groover G2 is placed in the groove 11B of the first ground contact body 11, and the second locking body 2 is locked to the edge E2 of the shoe plate S so that groover G2 is placed in the groove 12B of the second ground contact body 12.

[0026] As shown in Figure 2-3, the bolt 5A is inserted through the through hole 11D of the first grounding body 11 and screwed into the threaded hole 7A of the insert screw 7 of the second grounding body 12 through the through hole 6A of the insert sleeve 6 shown in Figure 4. This completes the attachment of the crawler cover member A to the shoe plate S.

[0027] [Removal of crawler cover components from the crawler] In Figure 4, the bolt 5A is rotated in the loosening direction to remove it from the insert screw 7. In this state, the crawler cover member A can be removed from the shoe plate S of the crawler C by moving the first locking body 1 and the second locking body 2 in the width direction W so that they separate from each other.

[0028] [Assembly of the first locking body and the first grounding body, and assembly of the second locking body and the second grounding body] As shown in Figure 5, the first locking pieces 1A and 1B are fitted into the two grooves 11C of the first grounding body 11, and the second locking pieces 2A and 2B are fitted into the two grooves 12C of the second grounding body 12.

[0029] The first locking pieces 1A and 1B are attached to the first grounding body 11 by screwing a bolt 10A through a through hole 9A in the thickness direction T provided in the first locking pieces 1A and 1B into a screw hole 8C in an insert screw 8A (Figure 4) in the thickness direction T (Figure 4) of the shoe plate S provided in the first grounding body 11.

[0030] The second locking pieces 2A and 2B are attached to the second grounding body 12 by screwing a bolt 10B through a through hole 9B in the thickness direction T provided in the second locking pieces 2A and 2B into a screw hole 8D of an insert screw 8B in the thickness direction T (FIG. 4) provided in the second grounding body 12.

[0031] [Attachment of Crawler Cover Member to Crawlers with Different Widths] In FIGS. 6 - 7, the same reference numerals as in FIGS. 1 and 4 indicate the same or corresponding components, parts, or directions. The width W2 of the shoe plate S in FIG. 7, which is the width of the crawler C, is smaller than the width W1 of the shoe plate S in FIG. 4 (W2 < W1). Also, the length of the bolt 5B in FIG. 7 is shorter than the length of the bolt 5A in FIG. 4.

[0032] The attachment of the crawler cover member A to the shoe plate S shown in FIGS. 6 - 7 can be performed as in FIGS. 2 - 3 by the bolt 5B, the first locking body 1 and the first grounding body 11, which are the same as in FIGS. 2 - 3, and the second locking body 2 and the second grounding body 12.

[0033] [Removal of Crawler Cover Member from Crawlers with Different Widths] In FIG. 7, rotate the bolt 5B in the loosening direction to remove the bolt 5B from the insert screw 7. In this state, by moving the first locking body 1 and the second locking body 2 in the width direction W so that they separate from each other, the crawler cover member A can be removed from the shoe plate S of the crawler C.

[0034] [Function and Effect] According to the crawler cover member A according to the embodiment of the present invention as described above, when the crawler cover member A is attached over the entire circumference of the crawler C, the iron shoe plate S is not grounded, and the elastic body 4A of the first grounding body 1 and the elastic body 4B of the second grounding body 2 of the crawler cover member A attached to the shoe plate S are grounded. Therefore, it is possible to protect a paved road or a work site where a heavy machine equipped with an iron crawler C passes, or the loading platform of a trailer or the deck of a ship when being transported.

[0035] Furthermore, the state in which the first locking body 1 and the second locking body 2 are locked to the shoe plate S is the shoe plate S The first grounding body 11 and the second grounding body 12 are held together by a connecting body 3 that connects them on the surface side F of the shoe plate S, or by a connecting body 3 that connects the first locking body 1 and the second locking body 2 on the surface side F of the shoe plate S. Therefore, the bolt insertion holes of It can be attached to shoe plates S that do not have a corresponding shoe plate S, and since there is no need to work from the back of the shoe plate S, the ease of attachment and detachment to the shoe plate S is improved. Furthermore, since the distance between the first locking body 1 and the second locking body 2 can be adjusted with the connecting body 3, there is no need to prepare crawler cover members A in different sizes to match the width of the shoe plate S.

[0036] Furthermore, since the crawler cover member A can be attached to and detached from the shoe plate S by tightening and loosening bolts 5A and 5B in the width direction W of the shoe plate S from the side, the workability of attaching and detaching the crawler cover member A to and from the shoe plate S can be improved.

[0037] Furthermore, with the crawler cover member A removed from the shoe plate S, the bolts 10A and 10B in the thickness direction T of the shoe plate S are loosened. Yo Therefore, the first grounding member 11 can be removed from the first locking member 1, and the second grounding member 12 can be removed from the second locking member 2. Thus, the worn first grounding member 11 and the second grounding member 12 can be easily replaced.

[0038] All embodiments described above are illustrative and not limiting. Various improvements and modifications can be made without departing from the scope of the present invention. [Explanation of symbols]

[0039] 1. First locking body 1A,1B 1st locking piece 2. Second locking body 2A,2B 2nd locking piece 3 Connector 4A Elastic body 4B Elastic body 5A, 5B bolts 6 Insert Sleeves 6A through hole 7 Insert screws 7A screw hole 8A, 8B Insert screws in the thickness direction 8C,8D screw hole 9A, 9B Through holes in the thickness direction 10A, 10B bolts 11 1st grounding body 11A ground plane 11B,11C Groove 11D through hole 12 Second grounding body 12A ground plane 12B,12C Groove A Crawler cover component C Crawler E1,E2 edge F Shoe Plate Surface Side G1, G2, G3 Grosa S Shoe Plate T thickness direction W (width direction) W1, W2 Crawler width (shoe plate width)

Claims

1. A cover member that covers the crawler track of heavy machinery, A first locking body that engages with one end edge in the width direction of the shoe plate of the crawler, A second locking body that engages with the other end edge in the width direction of the shoe plate, The first grounding body attached to the first locking body, The second grounding body attached to the second locking body, The first grounding body and the second grounding body are connected by a connecting body on the surface side of the shoe plate, or the first locking body and the second locking body are connected by a connecting body on the surface side, The elastic body of the first grounding body and the elastic body of the second grounding body are in contact with each other. Crawler cover component.

2. The aforementioned connecting body, The first grounding body and the second grounding body are fastened together using bolts in the width direction that are stretched between them, or The first locking body and the second locking body are fastened together using the widthwise bolts that are stretched between them. The crawler cover member according to claim 1.

3. The aforementioned connecting body, An insert sleeve in the width direction is provided on one of the first grounding body and the second grounding body. The insert screws in the width direction are provided on the other of the first and second grounding bodies, This is a bolt that is screwed into the threaded hole of the insert screw through the through hole of the insert sleeve. The crawler cover member according to claim 1.

4. The first grounding body is attached to the first locking body by screwing a bolt into the threaded hole of the insert screw in the thickness direction of the shoe plate, which is provided in the first grounding body, through the through hole in the thickness direction of the first locking body. The second grounding body is attached to the second locking body by screwing a bolt into the threaded hole of the insert screw in the thickness direction provided in the second grounding body, through the through hole in the thickness direction provided in the second locking body. The crawler cover member according to claim 1.

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