JPH055687U - Pavement road surface damage preventer for endless track vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the mounting bolts of the rubber cylinder that are attached to the tracked track track plate to prevent damage to the paved road surface from loosening during running. [Structure] A rectangular end portion 8 of a steel core 7 provided at the center of a rubber tubular body 6 is inserted into a square hole 11 provided in a first mounting member 10 and welded to the other end of the steel core 7. Then, the second mounting member 14 was fixed with bolts 17, and the shoe plate 1 was held between the mounting members 10 and 14.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device which is mounted on a crawler belt so that the vehicle does not damage the road surface when the crawler belt vehicle runs on a paved road.

[0002]

[Prior Art]

 The inventor of the present invention has devised a device disclosed in Japanese Utility Model Publication No. 61-30947 as a device to be mounted on a tracked body when a tracked vehicle runs on a paved road surface. The idea is to attach mounting brackets to the L-shaped endless track tracks to both ends of a rubber cylinder having a steel core with bolts, which can be easily attached to and detached from the endless track, and the direction of the vehicle. It does not hinder the conversion, and has the advantage that it can withstand long-term use by changing the mounting angle when a part of the rubber cylinder is worn.

[0003]

[Problems to be solved by the device]

 However, in the subsequent practical process, the rubber cylinder body reduces the slip on rough terrain to improve running performance, and the improved material makes it possible to operate the vehicle for a long time even if it is always worn. It turned out to be durable for a period of time.

As described above, it has been discovered that the mounting bolts on both ends are often loosened when the rubber tubular body is always mounted and used. That is, a large torque is applied to the rubber cylinder during traveling. Therefore, the present invention is intended to realize a mounting structure in which the mounting bolt does not loosen even when the rubber cylindrical body is always used.

[0005]

[Means for Solving the Problems]

 The pavement road surface damage preventer according to the present invention has a rubber cylinder having a steel core in the center, and a pair of L-shaped bent fittings provided at both ends thereof, like the conventional one. . The first mounting member has a square hole, and one end of the square steel core is fitted into and welded to the square hole. The second mounting member has a hole into which the above-mentioned steel core is fitted, the other end of the above-mentioned steel core is fitted into this hole, and the above-mentioned rubber tubular body is formed by a bolt or nut screwed into this steel core. Fixed to.

[0006]

[Action]

 The above-mentioned paved road surface damage preventer generates a large torque between the mounting bracket and the rubber cylinder when a vehicle mounted with the paved road surface damage preventer travels. However, since the steel core of the rubber tubular body is fitted into and welded to the square hole of the first mounting bracket, the rubber tubular body withstands the above torque no matter how strong the torque is, and prevents the rubber tubular body from rotating. Can be stopped. Therefore, it is possible to effectively prevent the situation where the bolt or the nut fixing the second mounting member to the rubber cylinder is loosened.

[0007] By mounting this on the endless track, not only the paved road surface is not damaged but also the slip with the road surface is reduced, so that the running performance of the vehicle is improved. It was also found that by using rubber with a high wear resistance as the cylindrical material, it is possible to withstand use for 1000 hours, which is close to the life of the endless track, without changing the mounting angle in the middle.

[0008]

【Example】

 In the figure, reference numeral 1 is a track plate having an endless track, having ridges 2 and 3 on the surface, a groove 4 formed between the two ridges 2 and 3, and a link 5 on the back surface. . By linking the links 5 of each track 1 with pins 6, a series of endless track zones is constructed.

Reference numeral 6 denotes a rubber tubular body, and a core body 7 made of a steel pipe is provided at the center. One end of the core body 7 is deformed to form a rectangular tube portion 8, and an internal thread 9 is engraved on the inner surface of the other end. Reference numeral 10 denotes a mounting metal fitting, which has a square hole 11 formed therein, and the tip end thereof is bent into an L shape to form a holding portion 12. The square tube portion 8 of the core body 7 is fitted into the square hole 11 and welded 13 thereto. 14 is also a mounting member, has a hole 15, and the tip is bent into an L shape to form a holding portion 16. The other end of the core body 7 is fitted in the hole 15, and the mounting bracket 14 is fixed to the core body 7 by screwing the bolt 17 into the female thread 9.

In order to mount the above-described device on the track plate 1, first, the mounting bracket 14 is removed and placed in the groove 4 of the track plate, and the holding portion 12 of the mounting bracket 10 is attached to the side of the track plate 1. Then, while hooking the holding portion 16 of the mounting bracket 14 to the other side edge of the shoe plate 1, the hole 15 is fitted into the core body 7 and fixed by the bolt 17.

Therefore, since the tubular body 6 is held in the concave groove 4 and fixed to the shoe plate 1 by the fittings 10 and 14, it is possible to withstand a large external force during traveling. Further, even if a strong torque is applied to the cylinder body 6, since the mounting fitting 10 reliably prevents the rotation, the bolt 17 is not likely to be loosened. From the results of the practical test, it was found that the life of the cylinder 6 exceeds 1000 hours.

[0012]

[Effect of the device]

 As is clear from the above description, when the present invention is used, there is no looseness of the mounting bolts, etc. during running, and it is possible to safely run for a long period of time while wearing this, and to prevent damage to the paved road surface during that time. Not only that, but it can also contribute to improving the running performance of the vehicle.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a side view of the embodiment shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tracked track plate 6 Rubber tubular body 7 Core body 8 Square tubular portion 9 Female thread 10 Mounting bracket 11 Square hole 12 Holding part 13 Welding part 14 Mounting bracket 15 Hole 16 Holding part 17 Bolt

Claims (1)

[Claims for utility model registration] [Claim 1] A rubber tubular body having a steel core at the center and a length substantially equal to the width of the endless track, and the steel core at each end of the tubular body. It is attached and extends beyond the side surface of the endless track band, and its tip is bent in an L shape toward the back surface of the endless track band so as to sandwich the track plate of the endless track band with the rubber cylinder. Forming an embraced holding part
And a second mounting member, wherein the first mounting member has a square hole, and one end of the square steel core is fitted and welded to the square hole. A paved road surface damage preventer in a crawler belt vehicle, which has a hole into which the other end of the steel core is fitted and is fixed to the cylinder by a bolt or a nut screwed onto the steel core.