JPH04112185U - rubber crawler - Google Patents

Abstract

(57) [Summary] (with modifications) [Purpose] To provide a rubber crawler whose spikes function accurately to prevent slipping even when running up and down stairs. [Structure] The rubber crawler has spikes protruding from the front and rear inclined surfaces of the lugs that protrude toward the outer periphery of a pair of endless belt-like pairs made of an elastic material such as rubber.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention has been improved so that it can run smoothly up and down stairs. This relates to rubber crawlers.

0002

[Conventional technology]

In the rubber crawler of a crawler traveling device, the outer circumference of the endless strip protrudes. It is known that spikes are driven into the flat end of each lug (for example, 56-172485).

0003

[Problem that the idea aims to solve]

The conventional one, as seen in the above-mentioned document, has lugs protruding from the outer periphery of the endless strip. When the spike is driven into the flat end of the lug and the flat end of the lug is in contact with the Since the spikes had an anti-slip function, it was difficult to ride up and down stairs. As shown, the outer periphery of the rubber crawler touches the corners of the stair steps in places. If you drive in such conditions, the spikes will not work to prevent slipping. There was a problem in that it was not possible to climb and descend smoothly. This invention was devised in view of the above-mentioned problems with conventional ones, and its purpose is to The reason is that the spikes accurately prevent slipping when going up and down stairs. An object of the present invention is to provide a rubber crawler with improved functionality.

0004

[Means to solve the problem]

In other words, the rubber crawler in the present invention is an endless band made of an elastic material such as rubber. A special feature is that spikes are provided on the front and rear inclined surfaces of the lugs that protrude around the outer periphery of the body. It is a sign.

[0005]

[Function and effect of the idea]

According to the rubber crawler of the present invention, the outer periphery of the rubber crawler can be Even if the stairs are running in a state where they straddle the corners of the steps and are in contact with each other in spots, the The spikes protruding from the front and rear slopes of the stairs must not touch the corners of the steps. This ensures a reliable anti-slip function, allowing you to climb and descend stairs with good traction performance. It was decided that

[0006]

【Example】

Next, embodiments of the present invention will be described with reference to the drawings. Figure 1 is a partial view of the rubber crawler according to the present invention viewed from the outer peripheral side, and Figure 2 is A of Figure 1. -A sectional view, and FIG. 3 is a BB sectional view of FIG. In Figures 1 to 3, (1) is an endless strip made of rubber or the like, and its interior The core bars (5), which are long in the width direction, are arranged at predetermined intervals in the longitudinal direction (rotation direction of the endless strip). The protrusion of the driving wheel engages with the part between the adjacent core metals (5) (5). Hole (6)... has been opened. In addition, each core bar (5) is integrally provided with protrusions (7) (7) that protrude from the inner surface of the endless strip (1). The outside of all core metals (5)... is surrounded by buried reinforcing cords (8). has been done.

[0007] Furthermore, a lug is attached to a portion corresponding to the core metal (5) on the outer peripheral surface side of the endless strip (1). (2)... are integrally molded and protrude from the endless strip, and each lug (2) is shown in Figure 2. As shown, the side cross section has a trapezoidal shape. And, the trough of the adjacent lug (2) (2) is located on the front and rear sloped surface (3) (3) of each lug (2). Spikes (4) are provided that protrude toward the space, and the spikes (4) on each inclined surface (3) are provided. A plurality of these are scattered in the width direction of the endless strip (1). The spikes (4) of the embodiment protrude in a direction perpendicular to the inclined surface (3) of the lug. At least in the normal state where the lug (3) is not elastically deformed, the flat end of the lug It is formed to a length that does not protrude outward from (9).

[0008] In addition, in the embodiments shown in FIGS. 1 and 2, the spikes (4)... are integrated or integrated into each core bar (5). The spikes (4) are mounted outward from the front and rear sloped surfaces (3) (3) of the lugs (2). In addition, in the embodiment shown in Fig. 4, individual strips separate from the core metal (5) The pike (4)... is buried or driven in the specified location of the lug (2), but the The specific structure for installing the pikes is that of the embodiment shown in Figs. 1, 2, and 4. The invention is not limited to this, and may be modified and implemented in any other way. In addition to the straight pattern shown in Figure 1, the lugs may be of any other pattern. It may be of.

[0009] Figures 5 to 7 show a transport vehicle equipped with a crawler traveling device using the rubber crawler of the present invention. The vehicle body has a frame that is approximately triangular in side view on the traveling transmission (11). It is constructed by assembling a frame (12). In addition, the crawler traveling device is - The idler wheels (14) and drive wheels (15) supported at both front and rear ends of the arm (13) are covered with rubber bands. - The driving wheel (12) is the axle of the traveling transmission (11). (16) is fitted and connected. Then, the vehicle body side relative to the crawler traveling device seesaws around the axle (16). Normally, the vehicle body does not rock. A locking mechanism (17) interposed between the truck frame and the vehicle body allows the lock to be It is now possible to In addition, the latching mechanism (17) is configured as a telescoping mechanism, and by adjusting the telescoping mechanism, It is now possible to arbitrarily adjust the inclination angle of the vehicle body relative to the crawler traveling device. ing.

0010 Note that the loading platform (18) that is removably installed on the top of the vehicle body is not shown. However, if it is equipped so that it can be tilted using the front part as a fulcrum or the rear part as a fulcrum. In some cases, it may be equipped with a In some cases. The transport vehicle configured as described above is as shown in FIGS. 6 and 7. It is designed to run up and down stairs in a comfortable position.

[Brief explanation of drawings]

FIG. 1 is a partial view of a rubber crawler according to the present invention, viewed from the outer circumferential side.

FIG. 2 is a sectional view taken along line AA in FIG. 1;

FIG. 3 is a sectional view taken along line BB in FIG. 1;

FIG. 4 is a sectional view similar to FIG. 2, showing a modification of the present invention.

FIG. 5 is a side view of a transport vehicle equipped with a crawler traveling device using the rubber crawler of the present invention.

FIG. 6 is an explanatory diagram showing a state in which the transport vehicle is running up stairs.

FIG. 7 is an explanatory diagram showing a state in which the transport vehicle is running down stairs.

[Explanation of symbols]

1 Endless strip body 2 rug 3 Front and rear inclined surfaces of the lug 4 Spikes

Claims (1)

[Scope of utility model registration request] [Claim 1] An endless strip made of an elastic material such as rubber
The front and rear inclined surfaces of the lugs (2) that protrude along the outer periphery of (1)
(3) A rubber crawler characterized by having spikes (4) protruding from (3).