JPH0716721Y2 - Metal sleepers - Google Patents

Description

TECHNICAL FIELD The present invention relates to a metal sleeper.

2. Description of the Related Art Conventionally, on a railroad track, a roadbed is formed on the roadbed by gravel, crushed stone, and the like, and sleepers are arranged below the roadbed, and a pair of rails are arranged with a predetermined gauge on the sleeper. Further, in recent years, since wooden sleepers have problems such as decay and splitting, concrete sleepers and metal sleepers are used instead of wooden sleepers. And as a structure to fasten the rail to the sleeper, one end of the pandroll clip is held by the through holes of the shoulder portions provided on both sides of the rail, and the rail is pressed to the sleeper at the other end of the pandroll clip. There is something to conclude.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the conventional structure, since the peripheral surfaces of the through-holes of the pand-roll clip and the shoulder portion that are in sliding contact with each other are worn by the vibration of the rail, they must be replaced every predetermined period. However, in the conventional metal sleepers, since the shoulder portion was formed integrally with the sleepers, it was necessary to replace the entire sleepers because the shoulder portion was worn.

The present invention solves the above problems, and an object thereof is to provide a metal sleeper in which only the shoulder portion can be replaced.

Means for Solving the Problems According to the present invention for solving the above-mentioned problems, a rail is supported by a sleeper body, and a through hole is formed in a shoulder portion provided on the sleeper body on both sides of the rail. In the metal sleeper that inserts one end of the pandroll clip into the to hold the pandroll clip at the shoulder part, and presses the rail to the sleeper body at the other end of the pandroll clip to fasten it to separate the shoulder part and sleeper body. It is formed and the shoulder portion is fixed to the main body of the sleeper via bolts.

Action With the above-mentioned configuration, the shoulder portion is bolted to the main body of the sleeper, so when the inner peripheral surface of the through hole of the shoulder portion is abraded by the vibration of the pan roll clip, the fixing by the bolt is released and the shoulder portion is released. Can be removed from the sleeper body and replaced with a new shoulder section, and the sleeper body can be used again. Therefore, the maintenance cost of the sleepers can be reduced.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First
1 to 2, a sleeper 1 is a cast iron casting, and a sleeper main body 3 arranged to support a pair of left and right rails 2,
It has a shoulder portion 4 arranged on both sides of the rail 2. The shoulder portion 4 is arranged by inserting a bolt portion 5 integrally formed on the bottom surface into a hole portion 6 formed in the sleeper body 3, and at the tip of the bolt portion 5 located inside the sleeper body 3. The nut 7 is screwed on. Further, a spring washer 8 and a washer 9 are interposed between the nut 7 and the sleeper body 3, and after the nut 7 is tightened to fix the shoulder portion 4 to the sleeper body 3, the nut 7 is attached to prevent the loosening. Spot welded to the sleeper body 3. Further, the resin 10 is injected between the shoulder portion 4 and the sleeper body 3 to enhance the fixing strength.

A through hole 11 is formed in the shoulder portion 4, a pan roll clip 12 is arranged with one end inserted into the through hole 11, and the other end of the pan roll clip 12 is an insulating pad 13.
By pressing the rail 2 against the sleeper body 3 via
The rail 2 is fastened to the sleeper body 3. A tie pad 14 made of an insulating material is interposed between the rail 2 and the sleeper body 3.

The operation of the above configuration will be described below. At the time of laying, the sleeper 1 is placed on the trackbed in a state where the shoulder portion 4 is attached and fixed to the sleeper body 3 in advance, the rail 2 is placed on the sleeper body 3, and then the pandroll clip 12 is attached to the rail 2 to sleeper. Conclude to 1. When the inner peripheral surface of the through hole 11 of the shoulder portion 4 is abraded by the vibration of the pan roll clip 12, the rail 7 is removed and then the nut 7 is removed.
Is removed to release the fixing by the bolt portion 5, and the shoulder portion 4 is replaced with a new shoulder portion 4. As a result, the sleeper main body 3 can be reused, and the maintenance cost of the sleeper 1 can be reduced.

FIG. 3 shows another embodiment of the present invention. The members having the same functions as those of the previous embodiment are designated by the same reference numerals and the description thereof will be omitted. In FIG. 3, the sleeper main body 3 and the shoulder portion 21 are formed separately, the bolt insertion holes 23 are formed in the sleeve portions 22 on both sides of the shoulder portion 21, and the sleeper main body 3 corresponds to the bolt insertion holes 23. A bolt hole 24 is formed in the. The T bolt 25 is inserted into the bolt hole 24 and the bolt insertion hole 23 from the inner surface side of the sleeper main body 3,
The nut 7 is screwed onto the tip of the bolt 25. Also,
A spring washer 8 is provided between the nut 7 and the shoulder portion 4.
Also, a washer 9 is interposed, and the shoulder portion 4 is fixed to the sleeper body 3 by tightening the nut 7.

Also in this configuration, the shoulder portion 4 can be replaced with a new shoulder portion 4 by removing the nut 7 as in the previous embodiment.

Advantageous Effects of Invention According to the present invention as described above, the shoulder portion can be removed from the sleeper main body by releasing the fixing by the bolt, and the shoulder portion can be replaced with a new shoulder portion, and the sleeper main body can be reused. As a result, the maintenance cost of the sleepers can be reduced.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view showing a fixing structure of a shoulder portion and a sleeper body in the same embodiment, and FIG. 3 is another embodiment of the present invention. FIG. 6 is a vertical cross-sectional view showing a fixing structure of the shoulder portion and the sleeper body in FIG. 1 ... sleepers, 2 ... rails, 3 ... sleepers main body, 4,21 ... shoulder parts, 5 ... bolt parts, 7 ... nuts, 12 ... pandrol clips, 25 ... T bolts.

Claims (1)

[Scope of utility model registration request] 1. A pandroll clip in which rails are supported by a sleeper main body, through holes are formed in shoulder portions provided on the sleeper main body on both sides of the rail, and one end of the pandroll clip is inserted into the through holes. In the metal sleeper that holds the shoulder part with the shoulder part and presses the rail with the other end of the pand roll clip to the sleeper body to fasten it, the shoulder part and the sleeper body are separately formed, and the shoulder part is attached to the sleeper body through the bolts. A metal sleeper characterized by being fixed.