JP3062559B2 - Crawler rubber shoe - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a crawler rubber shoe for preventing damage to a road surface when a construction machine operated for civil engineering work in a city runs on a paved road surface. It is.

(Prior art) In recent years, construction machines operating in civil engineering work in urban areas do not damage the road surface when traveling on paved road surfaces, and further have low noise, low vibration, and friction against concrete. Rubber shoes for crawler belts have come to be used more favorably because of their large traction force.

As shown in FIG. 6, a conventional rubber shoe for crawler belt has a rubber pad 10 interposed between a pair of glossers 13, 13 on the grounding surface side of a shoe 12 attached to a link 11 of the crawler belt, and this is bolted. It is customary to be fixed by 14 and nut 15.

There is also an example in which the rubber pad 10 is directly bonded to the shoe 12 by vulcanization.

Further, as shown in FIG. 7, a groove 16 is provided on the opposing surfaces of the pair of grosses 13, 13, while a groove 17 is also formed on the rubber pad 10, and after these are fitted, the groove 16, 17 to pin 18
It is also considered that both are fixed by driving.

(Problem to be Solved) However, these conventional rubber shoes for crawler belts are those in which the shoes are fixed with bolts corresponding to each link as described above, so that handling is troublesome and adjacent. Even if the head 19 or the tail 20 is formed, the part is greatly opened and closed, so that pebbles and earth and sand are caught in this space, resulting in good durability. It was not.

Further, the earth and sand may penetrate into the link mechanism portion through the shoe, resulting in generation of rust at the link portion as well as cracks and breakage.

(Object) The object of the present invention is to provide a new crawler shoe for solving such a problem.

(Solution) In order to achieve the above object, the present invention employs the following solutions.

That is, a plurality of metal cores are arranged at right angles to the traveling direction at intervals corresponding to the running shrink in a construction machine or the like, and the plurality of metal cores are surrounded by a rubber elastic body. A lug is formed on the ground surface side of the rubber elastic body, and a lug bottom one step lower than the lug height is formed between adjacent metal cores, and a metal core is formed from the ground surface side corresponding to the mounting hole of the link. A crawler belt rubber shoe having a bolt fastening hole formed therethrough on the top surface of the lug. Preferably, of the plurality of core bars provided, the core bar at one end of the rubber shoe extends over substantially the entire length thereof. A head portion that protrudes from the transition rubber portion and rises obliquely in the link direction is formed.
The core at the other end has a tail portion that is obliquely lowered in the opposite direction to the link protruding from the rubber portion over substantially the entire length thereof, and the head and the tail are sandwiched between the core portions. This has a structure in which no screw portion is formed.

(Operation) According to the crawler belt rubber shoe having the above configuration, the core metal buried in the rubber is fixed to the link.
One such crawler rubber shoe, and in some cases, a plurality of crawler rubber shoes, are sequentially fixed to the link.

Therefore, at the time of use, the core metal is connected with the rubber core by rubber, so that earth and sand, pebbles, etc. from the grounding surface side do not enter between them, and of course, the rubber shoe itself. It has a feature that it does not adversely affect the link mechanism, and further has a feature that vibration is sufficiently absorbed even in riding comfort.

(Specific Example) Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a plan view of the rubber track-A1 for crawler belt according to the present invention, and FIG. 2 is a sectional view taken along line 2-2 of FIG.

In the figure, B is a rubber surrounding the metal cores E, F, H. A lug C for obtaining a propulsive force is formed facing the metal cores, and a lug bottom L is formed between the metal cores. D is this rug C
And bolt fastening holes passing through each of the metal cores E, F, and H,
Although not shown here, a bolt 14 is fastened to the link 11 shown in FIGS. 6 and 7 described above.

In the core metal E, the center three core metals E have a substantially elliptical cross section, and are embedded in the rubber B over substantially the entire length in the width direction of the rubber shoe-A1. On the other hand, in the core F at one end, the head G that rises obliquely toward the link protrudes from the rubber B over substantially the entire width.

On the other hand, on the other end of the metal core H, a tail portion I is formed to face the head portion G, and is formed to project obliquely downward from the rubber B to the link.

The present invention is used by using one or a plurality of such crawler belt rubber shoes A1 and fixing them to the link 11.

As the central metal core E, a molded product such as forging or casting having a solid or hollow structure, or a product manufactured by extrusion or rolling is used.

A lug C is formed on the grounding surface side of the rubber elastic body B corresponding to the metal cores E, F, and H, and a lug bottom L one step lower than the lug height is formed between the adjacent metal cores, and A bolt fastening hole D penetrating through the metal cores E, F, H from the ground plane side is formed on the top surface of the lug C corresponding to the mounting hole.

FIG. 3 (a) shows the core metal E of the forged product described above, in which the central portion E1 becomes thicker and tapers toward both ends E2.

In FIG. 3 (b), the core metal E is an extruded product, and has a square waveform cross section in the example of FIG.

 The cores F and H are obtained by the same manufacturing method.

FIG. 4 is a crawler belt rubber shoe showing a second embodiment of the present invention.
FIG. 5 is a cross-sectional view taken along line 5-5 of FIG.

In this example, the lug C is slightly rounded to its tip, unlike the previous example.

A particularly different point is that all the cores have the same shape. In this example, the core J has a ridge K at the center thereof toward the grounding surface. .

When the crawler belt rubber shoe A2 according to this example is formed into an endless shape, the end portion is abutting rubbers.

(Effects) As described above, the crawler belt rubber shoe of the present invention can be attached to construction machines and the like already on the market, and the shoe portion is formed into a block of an appropriate size. As a result, operations such as transportation and installation are simplified.

Further, since the shoe portion is entirely made of a rubber elastic body, there is little vibration during traveling, the riding comfort is good, and the road surface is not damaged.

In addition, the characteristic point is that the rubber is a continuous body, so that it does not bite pebbles or earth and sand between it, it completely grips the ground, and furthermore, a large ground contact area can be taken, so that the aircraft The surface pressure is reduced, and the durability as a rubber shoe becomes excellent.

[Brief description of the drawings]

FIG. 1 is a plan view of the rubber cuff A1 for crawler belt according to the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is a specific example of a core used in the present invention. (A) is a perspective view of a core metal E of a forged product, (b) is a perspective view of a core metal E of an extruded product, and FIG. 4 is a crawler rubber shoe-A2 showing a second embodiment of the present invention. 5 is a plan view of the ground surface side of FIG.
6 and 7 are side sectional views of a conventional crawler belt rubber shoe. 10 ... rubber pad, 11 ... link, 12 ... shoe, 12, 13 ... glosser, 14 ... bolt, 15 ... nut, 19 ... head, 20 ... tail, A1, A2 …………………………………………………………………………………………………………………………………………… Looking for you! L ... Lug bottom.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62D 55/253 B62D 55/26

Claims (2)

(57) [Claims] 1. A plurality of metal cores are arranged at right angles to a running direction at intervals corresponding to a running shrink in a construction machine or the like, and the plurality of metal cores are surrounded by a rubber elastic body. A lug is formed on the grounding surface side of the rubber elastic body corresponding to the above, and a lug bottom one step lower than the lug height is formed between adjacent cored bars, and a lug bottom is formed from the grounding surface side corresponding to the mounting hole of the link. A rubber shoe for crawler belts, wherein a bolt fastening hole penetrating a metal core is formed on a top surface of the lug. 2. A plurality of metal cores arranged on one end of a rubber shoe have a head portion that extends from the rubber portion over substantially the entire length thereof and rises obliquely in the link direction. The core bar at the other end of the rubber shoe is formed with a tail portion that extends from the rubber portion over substantially the entire length and diagonally descends in a direction opposite to the link. 2. A structure in which a tail portion is not formed.
Rubber shoes for crawler belts described in the item.