JPS6242628Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to improving wetland tracks for tracked vehicles.The purpose of this invention is to increase the driving force on soft wetlands and increase the climbing force and soil removal force. excellent,
The object is to provide footwear for wetlands that does not cause skidding.

The tracks used in conventional tracked vehicles for wetlands are formed into a roughly triangular prism and have two sloping surfaces sandwiching the top ridge line as the ground contact surfaces. There was a problem in that the driving force was not sufficient and the vehicle could skid when traveling on a slope. In order to improve this problem, shoes with a corrugated or arcuate concave curved surface on the contact surface have been proposed (for example, devised in Japanese Utility Model Publication No. 50-6104).
However, the effect is not necessarily sufficient. This invention was made for the purpose of providing footwear for wetlands having better driving force and anti-skid function, and will be described in detail below based on illustrated embodiments.

The wetland track board 1 of this invention is a wetland track board for a tracked vehicle that is formed into a substantially isosceles triangular prism and has two sloped surfaces sandwiching the top ridge line 2 as the ground contact surfaces 3a and 3b. 3a and 3b, at least the contact surface 3a to be mounted toward the rear of the tracked vehicle has a low step 4 on the top ridgeline 2 side and wedge-like steps 5 and 6 on its longitudinal end surface. A recessed part 8 having a wedge-shaped cross section is formed on the side of the base ridgeline 7 and connected to the ground plane 3, and the bottom surface of the recessed part 8 is formed by an inclined surface of a triangular prism shorter than the original triangular prism of the shoe. That is. The arrow in the figure indicates the front (traveling direction) of the tracked vehicle, and 9 is a bolt hole for attaching the track plate 1. The step 4 is such that the new ground plane formed by the bottom surface of the concave part 8 is a slightly shallower slope than the original ground plane 3a, and the triangular shape of the shoe is maintained even in the part of the concave part 8. so that the cross-sectional shape of is maintained. That is, step 4
This impairs the function of forming the shoes as a whole into a triangular prism shape, that is, the amount of embedding of the shoes into the ground changes depending on the degree of softness of the ground, and the effective area of the contact surface changes. It must be kept to a minimum.

2 and 3 show an embodiment in which the concave portion 8 is provided only on the ground plane 3a to be mounted toward the rear of the tracked vehicle, and FIGS.
This shows an embodiment in which a concave portion 8 is provided in both a and 3b. Unless the tracked vehicle requires strong driving force in both forward and backward directions, it is generally sufficient to provide the recess 8 only on the ground contact surface 3a that should be mounted toward the rear of the tracked vehicle. be. In the illustrated embodiment, two recesses 8 are provided on one ground plane, but only one recess 8 may be provided in the center of the ground plane 2, or three or more recesses 8 may be provided. .

Since the wetland footwear of this invention has the above-mentioned structure, the steps 4 hold the mud well, preventing the footwear 1 from slipping on the muddy soil, thereby providing more reliable driving force. be able to. Furthermore, the wedge-shaped steps 5 and 6 formed on the longitudinal end surfaces of the concave portion 8 retain the mud, thereby effectively preventing the track board 1 from slipping in the lateral direction.

As described above, the wetland track shoes of the present invention reliably hold soft mud and increase the driving force, thereby increasing the hill starting force of the tracked vehicle and the earth removal force by the earth removal plate attached to the tracked vehicle. In addition, skidding when the tracked vehicle runs on a slope can be effectively prevented. Furthermore, the present invention can be applied to all triangular prism-shaped track shoes regardless of the size of the track board or the slenderness ratio of the ground contact surface, and the depth, size, and number of the recessed parts 8 can also be changed. As long as the triangular cross-section of the shoe shoe is maintained in that part, it can be freely designed, the structure is simple, and the strength of the shoe shoe is not compromised. Furthermore, according to the structure of this invention, the recessed portion 8
Since the cross-section of the footwear maintains its basic triangular cross-section even in the portion where the footwear is formed, there is no risk that the basic function as a footwear for wetlands will be impaired.

[Brief explanation of the drawing]

The figures show an embodiment of this invention; Fig. 1 is a perspective view of the shoe as seen from the ground contact side, Fig. 2 is a bottom view of the first embodiment, and Fig. 3 is part A of Fig. 2. 4 is a bottom view of the second embodiment, and FIG. 5 is a sectional view at section B in FIG. 4. In the figure, 1 is a track board, 2 is a top ridgeline, 3a and 3b are ground planes, 4 is a step, 5 and 6 are wedge-shaped steps, 7 is a base ridgeline, and 8 is a concave portion.

Claims (1)

[Scope of utility model registration request] In wetland track shoes for a tracked vehicle, which are formed into a substantially isosceles triangular prism and have two inclined surfaces sandwiching the top ridgeline 2 as contact surfaces 3a and 3b, at least one of the contact surfaces at the rear of the tracked vehicle is provided. A cross-section that has a low step 4 on the top ridgeline 2 side, wedge-like steps 5 and 6 on its longitudinal end face, and connects to the groundplane 3a on the base ridgeline 7 side. A wetland track board characterized in that a wedge-shaped concave part 8 is formed, and the cross section of the track board at this part of the concave part 8 is a triangular cross section shorter than the cross section of the triangular prism.