JP4663736B2 - Elastic device for fixing rails to sleepers - Google Patents

Description

  The present invention generally relates to an elastic device for fixing a rail, and more particularly to an elastic device for fixing a rail to a sleeper, in which a spring clip is installed between a pair of base plates attached to adjacent sleepers. According to the present invention, the support bar attached to the intermediate position of the spring clip presses the wide part on the upper surface of the leg portion of the rail located between the sleepers downward to securely fix the rail to the sleeper, and the railway vehicle This effectively damps the vertical vibrations of the railway vehicle due to the deflection of the rail when traveling. As a result, rail damage is prevented, maintenance costs are reduced, and passengers are provided with a smooth and comfortable ride.

  Generally, the elastic device for fixing the rail is a device for fixing the left and right rails to the left and right of the sleepers. The elastic fixing device plays a role in maintaining the distance between the rails, mitigating the force and vibration applied to the rails vertically or horizontally by the railcar when the railcar travels, and the force relaxed on the sleepers, railroad, and roadbed And transmit vibration.

As described in Korean Patent Publication No. 2002-0092132, the elastic fixing devices are British PR-clips and e-clips, French RN type and Nabla type elastic fixing devices, German W type And Boschlow type elastic fixing device.
The British elastic fixing device has the advantage of having a small number of parts and requiring less maintenance. However, the British elastic fixing device has the disadvantage that it is easily damaged due to its low control capability and lack of double anti-tilt function, thus making maintenance difficult. In the case of elastic fixing devices in France and Germany, multiple locking bolts are required, which makes the maintenance process of inspecting and tightening the locking bolts used for the myriad fixing units attached to the railway line significant. Time and effort are required.

  In order to overcome the problems that occur in the prior art, the aforementioned Korean Patent Publication No. 2002-0092132 proposes a rail fixing device filed by the inventor of the present application. The rail fixing device includes a shoulder 3, and the shoulder 3 has a fixing portion 31 protruding upward from an intermediate point on the upper surface of the support frame 33 fixed to each sleeper 1. The upper support 311 is provided so as to be symmetric with respect to the fixed portion 31. Further, the shoulder 3 has a pair of side supports 32 protruding upward from the fixed portion 31 at a predetermined position. The rail fixing device further includes a fixing spring 4 that accommodates the fixing portion 31 of the shoulder 3 and is supported by the upper support 311, and both ends of the fixing spring 4 are adjacent to each other and symmetrical. The fixed spring 4 has a bent portion 41, and the bent portion 41 extends from each end of the fixed spring and is supported by each of the side supports 32. The fixing spring 4 further has a straight front surface portion, and the front surface portion is curved to press downward to fix the rail leg portion 21. The rail fixing device further includes an insulator 5 provided between the fixing spring 4 and the rail leg 21.

  The conventional rail fixing device having the above configuration has a shoulder and a fixing spring, and thus realizes a double safety structure without using a locking bolt. Therefore, the space and maintenance cost required to fix the rail to the sleepers can be reduced, and the stability can be improved. However, the structure of parts constituting this apparatus is complicated, and the number of parts is large, so that the manufacturing and installation costs are high. In addition, there is a problem in that the vibration damping capability is insufficient.

Korean Patent Publication No. 2002-0092132

  The present invention has been made in consideration of the above-described problems that occur in the prior art, and an object thereof is to provide an elastic device for fixing a rail to a sleeper. That is, in this apparatus, a spring clip is attached between adjacent sleepers, and a support bar formed by bending in a predetermined shape at an intermediate position between the spring clips is provided on a rail above the space between adjacent sleepers. Press the rail leg downward. Therefore, the rail is securely fixed to the sleepers, the vibration generated by the traveling railway vehicle is effectively damped, the rail is prevented from being damaged, the maintenance cost is greatly reduced, and the passengers who use the railway vehicle are smooth and comfortable. Provide a comfortable ride.

In order to achieve the above object, the present invention is an apparatus including a base plate attached to each upper surface of a sleeper for fixing a rail, and a spring clip provided detachably between a pair of base plates attached to adjacent sleepers. When a plurality of spring clips are installed on both sides of each rail, each of the rails is arranged in a zigzag shape alternately on one side of each rail, thereby elastically fixing each of the rails to the sleepers. .
The spring clip can be attached to the sleeper by a locking bolt that secures the base plate to the sleeper.
In addition, the spring clip is formed by bending each end thereof, so that the hook that is hooked to the head of the locking bolt and the hook at both ends of the spring clip are integrated with each other, and the rail leg portion of each rail is elastically downward. You may provide the support bar bent in order to press.

  The present invention is an elastic device for fixing a rail to a sleeper, wherein a spring clip is attached between adjacent sleepers, and a support bar formed by bending in a predetermined shape at an intermediate portion of the spring clip, between adjacent sleepers. Press down the rail leg of the rail above the space. Therefore, the rail is securely fixed to the sleepers, the vibration generated by the traveling railway vehicle is effectively damped by using the spring clip, the rail damage is prevented, the maintenance cost is greatly reduced, and the railway vehicle is used. Providing passengers with a smooth and comfortable ride and improving the reliability of railway vehicles.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 2 is a plan view of an elastic device for fixing a rail to a sleeper according to an embodiment of the present invention. FIG. 3 is a plan view of an elastic device for fixing a rail to a sleeper according to another embodiment of the present invention. FIG. 4 is a cross-sectional view of an elastic fixing device attached to a sleeper according to the present invention. FIG. 5 is a perspective view of a spring clip used in the present invention.

If it demonstrates with reference to drawings, the elastic fixing device of this invention has the baseplate 6 attached to the upper surface of each sleeper 1 to which the rail 2 is fixed.
The elastic fixing device further includes a spring clip 7 detachably provided between a pair of base plates 6 attached to the adjacent sleepers 1 and elastically fixes each of the rails 2 to the sleepers 1.
The base plate 6 and the spring clip 7 are attached to the sleeper 1 with a locking bolt 8.
Each spring clip 7 includes a hook 71 formed by bending each of opposite ends, and the hook is hooked to the head of each locking bolt 8 on the adjacent base plate 6. The spring clip 6 further includes a support bar 72 having a predetermined length, and is integrated with the hook 71 at both opposing ends and is bent into a predetermined shape. The lower surface of the support bar 72 of the spring clip 6 is in close contact with the rail leg 21 of each rail 2 in the longitudinal direction of each rail 2, and thus elastically presses the rail leg 21 downward.
Here, the spring clips 7 may be arranged in pairs so as to face each other on both sides of each rail 2. Or as shown in FIG. 3, you may arrange | position at the both sides of each rail so that it may become a zigzag shape by turns to one side of each rail 2 alternately.

The operation and effect of the elastic fixing device having the above configuration will be described below.
Each base plate 6 is attached to a plate sheet 11 formed at each end of each sleeper 1. After the anti-vibration pad 9 is arranged on the rail sheet 61 formed in the middle part of each base plate 6, the rail 2 is mounted on the base plate 6 and the rail leg 21 of the rail 2 is fixed to the rail sheet 61 of the base plate 6. .
Each spring clip 7 is placed between adjacent base plates 6. Thereafter, both the base plate 6 and the spring clip 7 are fixed to the sleeper 1 with the locking bolts 8.
At this time, the spring clip 7 is provided between the adjacent base plates 6 so that the support bar 72 of the spring clip 7 is positioned on the upper surface of the rail leg 21. Each locking bolt 8 passes through the hook 71 of the corresponding spring clip 7 and the bolt through hole 62 provided in the base plate 6, and is then tightened in the bolt fixing hole 12 provided in each sleeper 1.
As described above, when the spring clip 7 and the base plate 6 are fastened to the sleeper 1 using the locking bolt 8, the hook 71 of the spring clip 7 hooked on the head of the locking bolt 8 is changed according to the tightening of the locking bolt 8. 6 along the direction of sleepers 1. Accordingly, the support bar 72 between the hooks 71 gradually comes into contact with the upper surface of the rail leg 21 of the rail 2. Therefore, the bent portion 73 of the spring clip 7 between each hook 71 and the support bar 72 is bent upward and gives a sufficient elastic force to the spring clip 7.

In other words, the elastic force of the spring clip 7 is provided between the hook 71 and the support bar 72, and is provided by a bent portion 73 that connects them together. When the hooks 71 at both ends of the spring clip 7 are fixed to the sleeper 1 along the base plate 6 using the locking bolts 8, the support bar 72 of the spring clip 7 is positioned on the rail 2 positioned above the upper surface of each base plate 6. It comes to be located in the upper surface of the rail leg part 21 of this. Therefore, the bent portion 73 of the spring clip 7 is bent upward as shown in FIG. 4 and gives a sufficient elastic force to the support bar 72 located on the upper surface of the rail leg portion 21.
Thus, since the rail leg 21 on the space between the adjacent sleepers 1 is elastically supported by the spring clip 7, the rail 2 is securely fixed to the sleeper 1. As a result, when the railway vehicle travels, vibrations from the vehicle are greatly attenuated by the spring clip 7, preventing the rail 2 from being damaged, and reducing the cost required for the maintenance of the rail 2. In addition, the stability of the traveling railway vehicle is ensured. In addition, the present invention attenuates railway vehicle vibrations, thus providing passengers with a smooth and comfortable ride.

On the other hand, the spring clip 7 is fixed to the sleeper 1 along the base plate 6 by the locking bolt 8 so that the bent portion of each hook 71 of the spring clip 7 protrudes slightly outward from the head of the locking bolt 8. Therefore, even when the length of the spring clip 7 changes due to vibration during traveling of the railway vehicle, the hook 71 of the spring clip 7 hooked on the head of the locking bolt 8 moves slightly to the right and left to return to the original position. Damping the vibration to return.
When installing the spring clip 7 between the base plates 6, as shown in FIG. 2, you may arrange | position in a pair on both sides of each rail 2, so that the spring clip 7 may mutually oppose. In that case, the support bar 72 of the spring clip 7 presses both sides of the rail leg 21 of the rail 2 downward. Alternatively, as shown in FIG. 3, when the spring clips 7 are installed on both sides of each rail 2, one each may be arranged in a zigzag shape on one side of each rail 2.

In FIG. 2, the spring clips 7 face each other and continuously connect all the sleepers 1. Alternatively, the spring clips 7 may be arranged on opposite sides of each of the rails 2 in an alternating on / off manner so as to connect only adjacent pairs of sleepers 1.
While the preferred embodiments of the present invention have been described by way of illustration, the invention is not limited to the embodiments described above, and various modifications, additions and alternatives understood by those skilled in the art are within the scope and spirit of the invention. This is possible without departing.

  As described above, according to the present invention, the spring clip is installed between a pair of base plates attached to adjacent sleepers, and thus the support bar attached to the middle portion of the spring clip is provided on the rail located between the sleepers. The rail leg is firmly fixed to the sleeper by pressing the wide part of the upper surface of the rail leg downward, and the vibration in the vertical direction of the railway vehicle due to the deflection of the rail when the railway vehicle travels is effectively damped. As a result, rail damage can be prevented, maintenance costs can be reduced, and a smooth and comfortable ride can be provided to passengers, in particular by attenuating the vibrations of railway vehicles.

It is the perspective view which expanded the important part of the elastic device which fixes the conventional rail. It is a top view of the elastic apparatus which fixes the rail by the Example of this invention to sleepers. It is a top view of the elastic device which fixes the rail by other examples of the present invention to sleepers. 1 is a cross-sectional view of an elastic fixing device attached to a sleeper according to the present invention. It is a perspective view of the spring clip used by this invention.

Explanation of symbols

  1 .... sleepers, 2. rails, 3. shoulders, 4. fixing springs, 5. insulators, 6. base plates, 7. clips, 8. locking bolts, 11. plate sheets.

Claims (4)

An elastic device for fixing a rail to a sleeper,
A base plate attached to the upper surface of each of the sleepers to which the rail is fixed;
A spring clip that is detachably provided between a pair of base plates attached to adjacent sleepers, and when the plurality of spring clips are installed on both sides of each rail, one is provided on each side of each rail. the alternately by Rukoto is arranged to be in a zigzag fashion, the elastic device for fixing a rail, characterized in that resiliently fixed to each of said rail to said sleepers on sleepers.   The elastic device for fixing the rail to the sleeper according to claim 1, wherein both the base plate and the spring clip are attached to the sleeper by a locking bolt. The spring clip is
Hooks formed by bending each end of the spring clip so as to be hooked on the head of the locking bolt;
The rail according to claim 2 , further comprising a support bar that is integrated with the hook at both ends of the spring clip and bent to elastically press the rail leg portion of each rail downward. Elastic device to fix to. The spring clip is
The elastic device for fixing a rail to a sleeper according to claim 3, further comprising a bent portion provided integrally between each of the hooks and the support bar and providing an elastic force to the spring clip.

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