JPH11171057A - Elastic shoe for crawler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of the road by integrally fitting a rubber shoe to the tread side of a cover plate with a plurality of lugs continuous in a lengthwise direction. SOLUTION: An elastic shoe for a crawler comprises a cover plate 40 with lugs formed on the tread side and with mud drain holes 441 , 442 formed between the lugs, and a rubber shoe 10 with a rubber pad 15 integrally vulcanization- molded to the outer surface side of a support plate 11 of almost the same shape as the tread side shape of the cover plate 40. Recessed parts are formed at the support plate 11 continuously with the mud drain holes 441 , 442 , outward in a right-angled direction to the mud drain holes 441 , 442 so as to form drain holes 141 , 142 also on the rubber shoe 10 side.

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 shoe for a crawler used in a construction vehicle such as a bulldozer or a power shovel, and more particularly, to a plurality of lugs continuous in a longitudinal direction. The present invention relates to an improvement of an elastic shoe for a crawler, which is attached to a tread side of a crawler plate and has a rubber shoe integrated therewith to prevent damage to a road surface.

[0002]

2. Description of the Related Art An elastic shoe for a crawler used in a construction vehicle is usually formed by a bushing having a lug protruding on a tread side thereof in a direction perpendicular to a traveling direction of a crawler by a plurality of links. And endlessly connected to each other via a pin. However, when traveling on a pavement road surface, the road surface is significantly damaged. Therefore, recently, it has been practiced to integrate a rubber shoe for protecting the road surface on the tread side of the crawler. That is, there is known a structure in which a support plate having a rubber pad vulcanized and bonded thereto is abutted and fixed to the tread surface side of the shoe plate, and is detachably integrated with a common mounting bolt on the shoe plate.

[0003] However, a cloth used in a construction vehicle has been used.
The elastic shoe for rubber usually travels only on the shoe plate and performs various operations, and a mud hole is formed between lugs of the shoe plate. The mud hole is a path through which mud escapes when the mud is pressed down on the surface of the crawler, or a path through which mud invades the back of the crawler. In the former case, in particular, a depression is formed on the ground contact surface where the footwear plate has touched down and solidified, as much as the mud has escaped. This is because the rubber shoe with a mud hole
A similar situation occurs when the is fixed.

When a rubber shoe having no mud hole is fixed, the support plate on the rubber shoe side is deformed by the pressure of the mud from the back surface of the footwear plate, so that the rubber shoe cannot be used.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior art, and has a new hole formed on the rubber shoe side which is continuous with the mud hole of the shoe.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the gist of the present invention is that a lug is formed on a tread side and a mud hole is formed between the lugs. And a rubber shoe formed by integrally vulcanizing a rubber pad on the outer surface side of a support plate having substantially the same shape as the tread side, and an elastic shoe for a crawler obtained by laminating these. Wherein a recess is formed in the support plate in a direction perpendicular to and outward of the mud hole, and a mud hole is also formed on the rubber shoe side. -An elastic shoe for a rubber.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An elastic shoe for a crawler according to the present invention.
Has a mud hole formed in the support plate provided on the rubber shoe in a direction perpendicular to the mud hole on the footboard side and further outwardly. It does not pass through a straight line when passing through, and there is no hole in the grounding surface.
This has the feature that no deformation of the side occurs.

[0008]

EXAMPLES The elastic shoe for a crawler of the present invention will be further described below with reference to examples. First, a description will be given of a normal elastic shoe for a crawler. FIG. 1 is a perspective view of a conventional elastic shoe for a crawler, and FIG. In the figure, the footwear plate 40 has three lugs 42 (42 ₁ , 42 ₂ , 4) on its tread surface 41 side in the longitudinal direction.
2 ₃₎ Yes formed valley section 43 (43 _1, 43 ₂₎ in the mud vent hole 44 (44 ₁ between the lugs 42 and 42,
44 ₂ ) is formed. And the tread 41 of the footwear plate 40
The rubber shoe 50 fixed to the side of the
A support plate 51 having substantially the same shape as the side and a rubber pad 52 are vulcanized and bonded to the outer surface of the support plate 51. Although not shown, both are fixed by bolts and nuts.

FIG. 3 is a perspective view of an elastic shoe for a crawler according to the present invention, and FIG. 4 is a perspective view showing only a rubber shoe. FIG. 5 is a perspective view showing only the support plate. The footwear is the same as in FIG. 2 and will not be described here.

The support plate 11 of the rubber shoe 10 according to the present invention has a concave portion 12 (12 ₁ , 12 ₂ , 12 ₃ ) with respect to a lug 42 which is a convex portion of a shoe plate 40, and a shoe plate 4 with a lug 42.
The convex portion 13 (13 ₁ , 13 ₁₎
13 ₂ ), and the recesses 14 (14 ₁ , 14 ₂ ) are formed in the direction perpendicular to the recess 12 and the projection 13 so as to face the mud hole 44 and extend outward. Of course,
A rubber pad 15 is vulcanized and bonded to the outer surface of the support plate 11.

FIG. 6 is a sectional view taken along line AA in FIG. 3, and FIG. 7 is a sectional view taken along line BB in FIG. And, as shown in FIG. 7, the mud hole connected to the concave portion 14, that is, the mud hole 44 in the support plate 11 of the rubber shoe 10 in a direction perpendicular to the mud hole 44 in the shoe plate 40 and outward. A hole is formed.

Therefore, in the elastic shoe for a crawler of the present invention, the rubber shoe 10 is used to prevent the support plate 11 on the rubber shoe 10 side from being deformed by mud or pebbles from the mud hole 44 of the footwear plate 40. A mud hole 14 is formed on the side, and the mud hole 14 is further arranged in a right angle direction.

[0013]

According to the elastic shoe for a crawler of the present invention, the rubber shoe, especially the support plate, is not deformed even after long-term use, and the durability is improved accordingly.

[Brief description of the drawings]

FIG. 1 is a perspective view of a conventional elastic shoe for a crawler.

FIG. 2 is a perspective view showing only a crawler plate from FIG. 1;

FIG. 3 is a perspective view of an elastic shoe for a crawler according to the present invention.

FIG. 4 is a perspective view showing only a rubber shoe taken out of FIG. 3;

FIG. 5 is a perspective view showing only a support plate taken out of FIG. 3;

FIG. 6 is a sectional view taken along line AA in FIG. 3;

FIG. 7 is a sectional view taken along line BB in FIG. 3;

[Explanation of symbols]

10 ‥‥ Gomushu -, 11 ‥‥ Gomushu - of the support _{plate, 12 (12 1, 12 2} , 12 3) ‥‥ recess, 13 (13 _1, 13 ₂₎ ‥‥ protrusions, 14 (14 _1, 14 ₂ ) ‥‥ recess (Gomushu - side mud vent hole), 15 ‥‥ rubber pad, 40 ‥‥ track shoe, 41 ‥‥ track shoe _{tread, 42 (42 1, 42 2} , 42 3) ‥‥ of track shoe lug, 43 (43 _1, 43 ₂₎ valleys of ‥‥ crawler plate, 44 (44 _1, 44 ₂₎ ‥‥ track shoe mud vent holes of.

Claims (1)

[Claims] A rubber pad is integrally vulcanized on an outer surface side of a crawler plate having a lug formed on a tread side and a mud hole formed between the lugs and a support plate having substantially the same shape as the tread side. An elastic shoe for a crawler, comprising a molded rubber shoe and a laminate thereof, connected to the mud hole, and a support plate in a direction perpendicular to the mud hole and toward the outside. An elastic shoe for a crawler, characterized in that a concave portion is formed on the rubber shoe and a mud hole is formed on the rubber shoe side.