JPH0223502Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a device that is attached to a track belt so as not to damage the road surface when the track belt vehicle runs on a paved road.

<Prior art> The inventor of the present invention had previously devised a method of attaching a rubber cylinder to the endless track belt to prevent the endless track belt from damaging the paved road surface during self-propulsion. , the contents of which are shown in Japanese Utility Model Application Publication No. 132785/1985. The structure consists of a rubber cylindrical body reinforced by a central steel pipe, and an L-shaped mounting bracket with one wing connected to both ends of the cylindrical body with bolts passing through the steel pipe. It is attached to the endless track belt by fitting the cylinder into the groove between the ridges formed on the surface of the plate, rotating the other wing of the mounting bracket to the back side of the track, and tightening the nut screwed onto the bolt. It is.

Furthermore, the present inventor subsequently improved it and developed it in 1983.
In the invention disclosed in Japanese Patent No. 131476, a receiving metal fitting is interposed between the rubber cylinder and the track groove of the endless track belt in order to more stably hold the rubber cylinder. The receiving fitting has a gutter-like part with an inner surface shaped along a part of the circumferential surface of the rubber cylinder, and is attached to the outer surface of this gutter-like part and has a shape equal to the cross-sectional shape of the shoe groove. It consists of a leg part.

Compared to conventional rubber block-shaped devices, the above-mentioned device has a smaller ground contact area, so it is easier to change direction when running, and it is easy to attach and detach, and if a part of the rubber cylinder wears out, it will not change the ground contact position. It has many advantages, such as a long lifespan because it can be installed with different parts.

<Problems to be solved by the invention> The above-mentioned device can be used when the length of the track is relatively short and the width of the track groove is relatively narrow, that is, it is short in the length direction of the track belt. are stably supported in the track grooves and can effectively prevent damage to the road surface caused by running on the track belt. However, when the length of the track shoes becomes long, even if the above-mentioned device is attached to a part of the track shoes, the front or rear ends of the track shoes may damage the road surface during running. Further, if the width of the track groove is significantly wide, that is, if it is long in the length direction of the track belt, it becomes difficult to stably support the above-mentioned device in the track groove.

The purpose of this invention is to realize a device for protecting a paved road surface that can be used when the track shoes are long and the track grooves are wide.

<Means for Solving the Problems> This invention consists of a receiving metal fitting, a plurality of rubber cylinders, a pair of mounting fittings, and a plurality of mounting bolts.

The above-mentioned receiving bracket includes a plurality of gutter-shaped parts arranged parallel to the width direction of the track belt track plate and having a length approximately equal to the width of the track track plate, and a plurality of gutter-shaped parts having a shape that matches the groove of the track track plate. Each gutter-like part has a back surface connected to the leg part by welding or the like.

The rubber cylinders are held within the trough-like portions and are reinforced by reinforcing steel pipes passing through the center.

Each of the above-mentioned mounting brackets is bent into an L-shape so that a first side edge is an extension of each of the above-mentioned rubber cylinders, and a second side edge on the opposite side runs along from the side surface to the back surface of the shoe shoe. ing.

Each of the mounting bolts is inserted through the reinforcing steel pipe of each of the rubber cylinders, and both ends thereof are supported by the mounting fittings near the first side edges thereof.

<Operation> The device according to this invention described above positions a plurality of rubber cylinders in the same groove of the track track plate,
The L-shaped bent part of the mounting bracket is hooked onto the back surface of the track plate, and both mounting brackets are attached to the track belt by tightening the screws in the direction in which they approach each other. When the vehicle changes direction, a twisting stress is applied to the rubber cylindrical body, but even if the track groove is wide, the tool is held in the entire groove, so the tool does not move within the groove. Furthermore, even when the length of the track shoes is long, damage to the road surface caused by the front and rear ends of the track shoes is reduced compared to when only one rubber tube is attached.

<Example> In the figure, 1 and 1 are rubber cylindrical bodies, the center of which is reinforced by steel pipes 2 and 2, respectively.
The length of the steel pipes 2, 2 is equal to the width of the track strip 3. Reference numerals 4 and 4 designate mounting brackets that stand up along the side edges of the track shoes 3, and one side edge of the mounting brackets 4 and 4 has an L-shaped bent portion 5 along the back surface of the track board 3; form 5. Elongated holes 6, 6 are drilled near the edges of the mounting brackets 4, 4 on the opposite side from the bent portions 5, 5, respectively, and mounting bolts 7, 7 and Nut 8 screwed into these,
8, the mounting brackets 4, 4 are attached to the rubber cylindrical bodies 1, 1.
are fixed at both ends.

Reference numerals 9, 9 are semi-cylindrical gutter-like portions having an inner diameter equal to the outer diameter of the rubber cylinders 1, 1, and common leg portions 10, 10, 10 are provided on their outer surfaces. The shape of the legs 10, 10, 10 corresponds to the cross-sectional shape of the track groove 12 between the protrusions 11, 11 formed on the surface of the track board 3. Gutter-shaped parts 9, 9 and leg parts 10, 10, 1
0 constitutes a receiving metal fitting. Reference numerals 13, 13 denote screw rods whose base ends are welded to the outer surfaces of the gutter-like parts 9, 9, and which extend through long holes 14, 14 drilled in the mounting brackets 4, 4, and nuts 15 are fitted at their tips. It is strained. Reference numeral 16 denotes a tightening bolt that passes through the vicinity of the center of the mounting brackets 4, 4, and has a nut 17 at its tip, and a hole 18 through which the tightening bolt 16 passes is bored in the leg portions 10, 10, 10. ing.

The above-mentioned device has legs 1 of the receiving fitting as shown in the figure.
0, 10, 10 are in close contact with the inner surface of the track groove 12, and the rubber cylindrical bodies 1, 1 are in contact with the respective gutter-like portions 9, 9, respectively.
Nuts 8, 15, 15 in close contact with the inner surface of
and 17, it is attached to the track board 3. When installing, each rubber cylinder 1, 1 is rotated and the installation position is adjusted so that the part with the least wear is in contact with the ground. If the length of each track of the track belt is long, the above-mentioned device must be attached to each track, but if the length of the track is short, it must be installed to every other track. That's enough.

When the above-mentioned device is attached to the endless track belt, the track tracks no longer touch the ground, and instead, each rubber cylindrical body comes into contact with the ground in a linear manner. Therefore, the road surface is not damaged by the running of the vehicle, and since the frictional resistance is low, the direction can be easily changed.

When the track groove is wide, it fits better than a single rubber cylindrical body, is stable against twisting stress when changing direction, and when the track is long, the front and rear ends of the track are This can prevent damage to the road surface.

<Effects of the invention> As described above, according to this invention, since the rubber cylinder is interposed between the track belt tracks and the road surface, it not only prevents damage to the road surface, but also reduces the width of the track groove. Even if the track is wide, the equipment can be stably supported, and even if the track is long, the front and rear ends of the track can be prevented from damaging the road surface.

[Brief explanation of the drawing]

The figures show an embodiment of this invention, in which Fig. 1 is a side view, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along line B-B in Fig. 2. It is. 1... Rubber cylinder, 2... Reinforced steel pipe, 3... Track belt track plate, 4... Mounting bracket, 5... Bent part,
7... Mounting bolt, 9... Gutter-like part (part of the receiving metal fitting), 10... Leg part (part of the receiving metal fitting), 12... Track groove.

Claims (1)

[Scope of utility model registration request] A receiver formed by connecting the back surfaces of a plurality of gutter-like parts arranged parallel to the width direction of the track belt track board and having a length approximately equal to the width of the track track plate to leg parts having a shape that matches the grooves of the track track board. a metal fitting, a plurality of rubber cylinders held in each of the gutter-shaped parts and reinforced with a steel pipe at the center, and a first side edge that is on an extension of each of the rubber cylinders and is opposite thereto; A pair of mounting brackets are bent into an L shape so that the second side edges of the shoes run along from the side surface to the back surface of the track shoes, and the fittings are inserted into the reinforcing steel pipes of each of the rubber cylinders, and both ends thereof are inserted into the reinforcing steel pipes of the rubber cylinders. A paved road surface damage preventer comprising a plurality of mounting bolts that are supported by both mounting brackets and passing through the mounting brackets near the first side edges thereof.