JP2606785Y2 - Elastic track plate for endless track belt - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an elastic track plate for an endless track belt for protecting a running road surface used for construction vehicles such as bulldozers and power shovels. The aim is to reduce the weight and to improve the lightness and the ease of mounting the tracked belt on the track shoe surface.

[0002]

2. Description of the Related Art Tracks for endless track belts usually have
An iron-made crawler plate having one or a plurality of lugs protruding along its length direction is connected to each other endlessly through a number of links via bushes and pins. However, when traveling on a pavement road surface, the road surface is significantly damaged. Therefore, recently, an elastic protective shoe plate has been superposed and integrated on the shoe surface of each shoe plate to travel.

[0003]

[Problems to be solved by the invention] However, in the case of the above-mentioned elastic protective shoe plate which is integrated with the shoe surface of the shoe plate, the endless track belt is provided on the entire rear surface of the elastic protective shoe plate. Because the steel protective shoeboard that has the uneven shape corresponding to the unevenness of the board shoe surface is polymerized and integrated, it not only increases the weight but also presses the uneven shape corresponding to the unevenness of the shoe shoe surface in manufacturing. It is necessary to process, the workability as an elastic footboard is bad and the cost is remarkably high, and the presence of the iron protective shoeboard on the entire surface of the elastic footboard rear side causes a delicate Clear gaps are likely to occur, which causes defects such as a failure in mounting the elastic protective shoe plate and rattling, resulting in poor durability.

[0004] Further, since the thickness of the elastic protective shoe plate protruding from the lug tip of the crawler plate is limited by design and is relatively thin, the elastic protective shoe material is required when traveling on an extremely uneven road surface such as crushed stone. Since concentrated stress is applied to itself and it is liable to be damaged, a problem often arises from this aspect also in terms of durability.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art and eliminates the need for pressing the unevenness corresponding to the mounting surface of the iron footwear plate, thereby reducing costs and reducing unnecessary portions. It is designed to reduce the weight and reduce the weight, and also to improve the durability of the elastic crawler belt by improving the attachment to the footwear board, specifically, the unevenness of the crawler shoe surface of the endless track belt on the back side In the elastic shoe material having the uneven shape corresponding to the above, the tip of the mounting bolt is protruded outward (in the direction of the shoe shoe surface) only on the convex surface of the elastic shoe material having the uneven shape. Flat metal
The present invention relates to an endless track belt elastic crawler plate to which a plate is attached.

Further, in the present invention, the flat metal plate attached to the back surface of the elastic shoe material has a plurality of protrusions in the uneven shape formed on the back surface of the elastic shoe material along the respective longitudinal directions. The present invention also relates to a crawler belt elastic crawler that can be attached by mounting.

[0007] Further, the flat metal plate attached to the back surface of the elastic shoe material has a lengthwise direction of only one of the plurality of convex surface surfaces in the uneven shape formed on the back surface of the elastic shoe material. The present invention also relates to an endless track elastic shoe plate which is adapted to be mounted along.

Further, the flat metal plate attached to the back surface of the elastic shoe material is only the convex surface of the uneven shape formed on the back surface of the elastic shoe material, and is located near both ends in the longitudinal direction of the elastic shoe material. The present invention also relates to an endless track elastic shoe plate which can be attached only to a position.

Further, the flat metal plate attached to the back surface of the elastic shoe material has a head portion of a bolt attached to the surface at a position near both ends of only the convex surface in the uneven shape formed on the rear surface of the elastic shoe material. at which were integrally bonded by welding, gold somewhat larger diameter than the head portion of the mounting bolt
By applying buried the genus plate elastic shoe in material, the metals
The present invention also relates to an elastic track plate for an endless track belt, wherein the plate serves as a substantial washer of a mounting bolt.

[0010] Elastic shoe material attached to a metal plate
Has a hollow part formed in the inside in the longitudinal direction.
The present invention also relates to a crawler belt elastic crawler that is characterized by having

[0011]

[Function] Since the flat metal plate is attached only to the surface of the convex portion of the elastic shoe material on the back side of the unevenness, when the metal plate is attached to the crawler shoe surface of the endless track belt,
Parts in the recess of the elastic shoe material metal sheet is not present, to allow a certain degree of plastic deformation causes a gap between the track shoe shoe surface, or it is not possible to produce defects in mounting, yet the absence of a metal plate The weight and the material cost can be reduced by an amount corresponding to.

Further, in the case where a hollow portion is formed in the elastic shoe material in the longitudinal direction thereof, when the hollow portion is mounted on a tracked vehicle and travels, a local portion on the shoe surface of the elastic shoe material is formed. Such stress is uniformly distributed throughout the elastic shoe material by the hollow portion.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific contents of the present invention will be described below with reference to FIGS.
Explaining based on each embodiment shown in 4 , reference numeral 1 denotes an elastic shoe material, and 4 denotes a flat metal plate . Elastic shoe material 1
Made of rubber or urethane or other elastic material, the back surface has an uneven shape corresponding to the uneven shape of the ground side shoe surface of the shoe plate (not shown), and the central portion has a groove shape corresponding to the protrusion lug of the shoe plate Are formed in the longitudinal direction, and the left and right sides of the concave portion 2 are flat convex portions 3.3.
Are formed. Further, the elastic shoe material 1 has a hollow portion 1b. 1b is formed at a position avoiding the groove-shaped concave portion 2 so as to correspond to each protruding lug due to the uneven shape of the ground-side shoe surface of the footwear board. Is secured.

In this case, the shape of the hollow portion 1b does not necessarily have to be circular in cross section as in each embodiment, and it does not matter whether the shape is a special shape such as an ellipse or a square. As for the length of the hollow portion 1b, it is more effective to make the hollow portion 1b continuous as long as possible in the length direction of the elastic shoe material 1. However, as in the embodiment of FIGS. Considering the existence of the bolt fastening holes 1a provided in the center of the above, it is sufficiently effective to provide them only on the left and right sides.

In the case of the first embodiment shown in FIG. 1, the flat metal plate 4 has only the flat surface of the convex portion 3.3 formed on the left and right sides of the concave portion 2 of the elastic shoe material 1 as a center. A bolt having a size large enough to cover the hole is prepared, and a tightening hole 5.5 corresponding to the bolt tightening hole 1a is opened at a position near the center thereof in advance. At the same time, the head of the mounting bolt 6.6 is closely attached to the surface of the metal plate 4 (the elastic shoe material 1 ) so that the tip protrudes outward (in the mounting direction with respect to the shoe plate).
Side) , they are integrally attached by welding (Fig.
4) , with the metal plate 4.4 attached,
The metal plate 4 is integrated with the elastic shoe material 1 by means of vulcanization bonding or the like so that close contact polymerization can be performed on the ground-side shoe surface of the shoe shoe.

[0016] In this case, the mounting bolt 6.6 described above, without welding to the metal plate 4, to form a bolt hole in the metal plate 4, the elastic respective head portion of the bolt 6.6 shoe It may be buried integrally with the material 1 side, and the tip of the bolt may be projected outward (in the direction of attachment to the footwear plate) through the bolt hole formed in the metal plate 4.

FIG. 2 shows a second embodiment of the present invention.
The metal plate 4 is attached only to the “projection 3 on one side” of the projections 3.3 formed on both the left and right sides of the center, and in this case, the mounting bolt is attached to the projection 3 on the other side. 6.6 is planted with its head buried in the elastic shoe material 1.

Further, in the third embodiment shown in FIG. 3, bolts formed in the center of each of only the surfaces of the protrusions 3.3 formed on the left and right sides of the recess 2 of the elastic shoe material 1 as a center. Tightening hole 1a. Except near 1a, only the portion near both ends in the longitudinal direction is substantially at the center and the mounting bolt 6
Is applied to a metal plate 4.4.4.4 in which each is planted.

Further, in the fourth embodiment shown in FIG. 4, the projection 3.3 in the uneven shape formed on the back surface of the elastic shoe material 1 is shown.
The position of the surface at both ends near the, at which were integrally bonded by welding the head 6a of the bolt 6 mounted on the front surface, somewhat larger diameter of the metal plate than the head portion 6a of the mounting bolt 4
Embedded in the elastic shoe material 1 so that the back surface thereof is flush with the surface of the convex portion 3 of the elastic shoe material 1. In this case, the metal plate 4 6 also serves as a substantial washer.

[0020]

[Effect of the Invention] As described above, in the present invention, all or one of only the convex surface of the back surface of the elastic shoe material having an uneven shape corresponding to the uneven surface of the iron shoe shoe surface is provided in the elastic track board for the endless track belt. Since the flat metal plate with the tip of the mounting bolt protruding outward is attached to the part, the strength of the attachment part of the elastic shoe material is of course maintained sufficiently. That, in addition to the concave portion on the back surface of the elastic shoe material, or the elastic shoe material of the portion where the convex metal plate is not applied together with the concave portion, as a result, when the elastic shoe material is attached to the crawler shoe surface of the endless track belt. In addition, the elastic shoe material in the middle part is likely to be plastically deformed to some extent, so that there is no gap between the elastic shoe material and the shoe shoe surface and mounting problems will occur, and furthermore, the weight and cost will be reduced. Can be.

Further, in the case where a hollow portion is formed in the elastic shoe material in the length direction thereof, when the hollow portion is mounted on an endless track vehicle and travels, a local portion on the shoe surface of the elastic shoe material is formed. Such stresses are evenly distributed throughout the elastic shoe material by the hollow portions, and as a result damage is minimized, so that the durability of the elastic shoe plate is significantly improved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a crawler belt elastic crawler board showing a first embodiment of the present invention .

FIG. 2 is an overall perspective view of a crawler belt elastic shoe plate according to a second embodiment of the present invention .

FIG. 3 is an overall perspective view of a crawler belt elastic crawler plate showing a third embodiment of the present invention .

FIG. 4 is a cross-sectional view of a main part of an elastic track plate for an endless track belt, showing a fourth embodiment of the present invention .

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Elastic shoe material 1a Bolt tightening hole 1b Hollow part 2 Concave part 3 Convex part 4 Metal plate 5 Tightening hole 6 Mounting bolt 6a Head 6b Welded part

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tankatsu Niitsu 5-9, Yonbancho, Chiyoda-ku, Tokyo Topy Industries Co., Ltd. (56) References JP-A-6-115467 (JP, A) JP-A-5-115 13888 (JP, U) Japanese Utility Model 5-82776 (JP, U) Japanese Utility Model 54-111035 (JP, U) Japanese Utility Model Utility Model 55-94287 (JP, U) Japanese Utility Model Utility Model 59-80175 (JP, U) Japanese Utility Model Application Hei 6-74594 (JP, U) Japanese Utility Model Application Hei 6-32280 (JP, U) Japanese Utility Model Application Hei 3-15286 (JP, U) Japanese Utility Model Utility Model 43-9526 (JP, Y1) (58) (Int.Cl. ⁷ , DB name) B62D 55/28

Claims (6)

(57) [Scope of request for utility model registration] 1. An elastic shoe material having an uneven shape on the back surface corresponding to the unevenness of a crawler shoe surface of an endless track belt, wherein only an outer surface of the elastic shoe material having the uneven shape is formed. An elastic crawler belt for endless track belts, which is formed by mounting a flat metal plate with the mounting bolts protruding toward the crawler shoe surface. 2. A flat plate attached to the back of an elastic shoe material.
2. The endless track belt elastic crawler according to claim 1, wherein the metal plate is attached along a length direction of each of a plurality of protruding surfaces of the concavo-convex shape formed on the back surface of the elastic shoe material. . 3. A flat plate attached to the back of an elastic shoe material.
The infinity according to claim 1, wherein the metal plate is attached along the length direction of only one of the plurality of convex portions formed on the back surface of the elastic shoe material. Elastic track plate for track belt. 4. A flat plate attached to the back of an elastic shoe material
2. The infinity according to claim 1, wherein the metal plate is attached only to the surface of the convex portion of the concave and convex shape formed on the back surface of the elastic shoe material, and only to a position near both ends in the length direction of the elastic shoe material. Elastic track plate for track belt. 5. A flat plate attached to the back of an elastic shoe material
The metal plate is formed by welding the head of the mounting bolt to the surface at a position near both ends of only the surface of the protrusion in the uneven shape formed on the back surface of the elastic shoe material. Metal plate with a diameter somewhat larger than
2. The endless track belt elastic crawler according to claim 1, wherein said metal plate is also buried in said elastic shoe material so that said metal plate also serves as a substantial washer of the mounting bolt. 6. The elastic material for an endless track belt according to claim 1, wherein the elastic shoe material attached to the metal plate has a hollow portion extending in the longitudinal direction inside thereof. Footwear board.