JPH03182888A - Rubber crawler - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rubber crawler that is attached to a crawler-type traveling device in which the wheels roll soundly on the distal end surface of the core protrusion of the crawler.

Conventionally, as shown in FIG. 5, the entire surface of the core protrusion (8a) is covered with rubber (7
However, due to strong contact between the tip surface (, ) of the core protrusion (8a) and the wheel (5), the tip surface (a)
) due to abrasion of the covering rubber (7') on the crawler (6').
) has a disadvantage that the crawler (6) becomes loose and easily comes off because the actual inner circumference length of the crawler (6) becomes long.

An object of the present invention is to make it possible to prevent the crawler from coming off while sufficiently preventing rust on the core protrusion through rational and simple improvements.

The characteristic structure of the rubber crawler manufactured by mallet all K is that the core protrusion is buttoned and covered with rubber on all sides except the tip surface, and its functions and effects are as follows.

First, with the above configuration, the contact of the roller with the tip surface of the core protrusion is rather effectively used, and this contact prevents the metal from rusting in the tip direction, and also prevents rust from forming on other parts. The rubber coating sufficiently prevents rust on the entire core protrusion, while completely eliminating the loosening of the crawler caused by abrasion of the coating rubber on the tip surface due to contact with the rolling wheels, as in conventional configurations. It is possible to effectively prevent the crawler from coming off due to its loosening, and with an extremely simple improvement of just changing the shape of the rubber coating, it has excellent rust prevention and has an extremely practical effect that prevents the crawler from coming off. Made into a rubber crawler.

Next, an embodiment will be described based on FIGS. 1 to 4.

An upper guide roller (2) and a plurality of lower guide rollers (3) are attached to the longitudinally intermediate portion of the truck 7 frame f+, and a drive roller (4) is attached to one longitudinal end of the trunk frame ill. , and a winding rotary wheel (5) is attached to the other end, and a rubber crawler (6) is used to rotate the bill over these wheels (2 to 5), and a crawler-type traveling device is constructed.

When constructing the rubber crawler (6), the rubber endless belt-like body (7), which is its main component, serves as a reinforcing member and a locking member for the sprocket teeth of the driving roller (4). A large number of core metals (8) are arranged at equal intervals in the longitudinal direction of the belt-like body and are buried so that almost the entirety thereof is coated with rubber, and the center part of the core metals (8) in the width direction of the belt-like body is buried. In addition, the circumferential surface of the belt-shaped body also protrudes inward to guide the rolling of the rolling wheels (2 to 5), and also to guide the rolling of the rolling wheels (2 to 5).
．． 5)' is integrally formed with a pair of core metal protrusions (8a) in the width direction that stop the receiver by contact with the tip end surface (a), and furthermore, a core metal protrusion (8) is formed in the center of the width direction of the belt-like body (7). Between us,
A hole (7a) is formed into which the tip of the sprocket tooth of the drive roller (4) is inserted.

Then, the tip surface (
Leaving only a), taper the tip side of the core protrusion (8a) (
b), and the entire circumference of the measuring surface (C) is covered with rubber (7b) that is continuous with the belt-like body (7).

In other words, due to contact with the wheels (2, 3, 5), the tip surface (a)
) to prevent rusting, and all other conditions (b)
, (C) is prevented from rusting with the covering rubber (7b),
While the entire core bar protrusion (8a) is sufficiently rust-proofed, the tip surface (a) is protected against rolling wheels (2, 3, 3, etc.) such as those covered with K rubber.
The structure is designed to eliminate loosening of the crawler (6) due to abrasion of the rubber coating on the tip end surface (a) due to strong contact with the roller (5), and to prevent the crawler (6) from coming off due to the loosening.

The specific shape of the core bar protrusion (8a) can be modified in various ways, and the specific shape of the rubber coating of the core bar protrusion (8a) on all areas other than the tip surface (a) that contacts the rolling wheels may be changed. Various improvements are also possible.

[Brief explanation of drawings]

Figures 1 to 4 show embodiments of the present invention, with Figure 1 being a general survey view of the crawler type traveling device, Figure 2 being an enlarged plan view of the crawler, and Figure 3 being the same as Figure 2. 4 is a sectional view taken along the line IV-IV, and FIG. 5 is a diagram showing a conventional example. (7b)...Rubber, (8a)...Core protrusion, (a)...Tip surface.

Claims (1)

[Claims] A rubber crawler in which the core protrusion (8a) is covered with rubber (7b) on all sides except the tip end surface (a).