JP5876389B2 - Synthetic sleeper fixing device - Google Patents

Description

The present invention relates to a fixing device for a structure of a sleeper ( synthetic sleeper ) arranged along the longitudinal direction on a railway rail structure (generally, H-shaped steel which is a constituent material of a railway bridge). is there.

In order to fix (fasten) the bridge sleepers (sleepers arranged on the bridge) to the structure, the bridge sleepers are placed on the structure so as to be arranged in a direction perpendicular to the longitudinal direction of the structure, and the structure is provided. The hook on the distal end side of the hook bolt is passed through the vertical hole provided in the synthetic sleeper so that the hook on the distal end side is locked (hooked) to the flange (fin piece), and the upper end of the vertical hole ( synthetic sleeper) In general, a nut is screwed and tightened to the threaded portion protruding from the upper surface of the screw through a washer (Patent Document 1).

JP 2001-49620 A

  Bridge sleepers are not made of concrete products, but are also made of wood and other materials because of their durability by placing and fastening on H-shaped steel, which is a bridge structure. Resin-based materials (synthetic sleepers) dominate.

  The bridge sleeper is mounted on a rail structure with a hook bolt and a nut screwed to the hook bolt, fastened, and fixed. As a result, the hook bolts and the like rub against the bridge sleepers, causing damage to the sleepers. In some cases, the tightening of the hook bolt due to early detection can eliminate play and prevent this damage. However, the thread of the hook bolt rubs against the washer, and the tightening operation is difficult.

  In any case, the bridge sleepers are not fixed due to loosening of the hook bolts due to vibrations when passing through the train, and this is a factor that reduces the function of the bridge sleepers such as causing a right-angle displacement.

The present invention focuses on the fact that hook bolts (or nuts) and synthetic sleepers are likely to cause damage to sleepers by directly rubbing them, and the invention was devised to provide a device that can avoid direct rubbing, that is, contact and avoid the contact. It is a thing. And in the apparatus for fixing the synthetic sleeper on the structure of the bridge, a washer material is constituted by the cylindrical main body and the collar piece protruding from the upper peripheral side of the cylindrical main body, and the said washer material While inserting the cylindrical main body into the vertical hole provided in the synthetic sleeper , the hook piece is hooked to the edge of the vertical hole, and the washer is combined with the synthetic sleeper, and the vertical hole A hook bolt is inserted from the lower end of the hook bolt, the hook portion on the tip side of the hook bolt is locked to the structure, and the base end of the hook bolt protrudes from the upper end of the vertical hole through the cylindrical main body. A synthetic sleeper fixing device in which a tightening nut is screwed into a screw portion on the side, wherein the cylindrical main body of the washer member is configured to hook the collar piece on an edge of the vertical hole, and Formed on the base end side of the hook bolt when a material is combined with the synthetic sleeper The threaded part in which the end of the cylindrical main body opposite to the flange piece is formed on the base end side of the hook bolt and the threaded part are arranged so that the threaded part does not contact the synthetic sleeper. The basic means is that the length extends to the vicinity of the boundary with the non-formed portion .

To this basic means, a point where an elastic cushioning material made of rubber, resin, etc. is interposed between the cylindrical side surface of the washer and the lower surface of the collar piece and the synthetic sleeper is added. By doing so, the vibration to the hook bolt from the synthetic sleeper side through the washer is less likely to be transmitted, and the hook bolt is further less likely to change over time (such as screw crushing), and thus the fastening state of the sleeper is reliably maintained. An even more durable synthetic sleeper fixing device can be provided.

In addition, by adding a point where a synthetic sleeper is supported on a structure via an elastic cushioning material such as rubber or resin, it can be expected to absorb vibrations generated when passing through a train, and even more stable due to vibration absorption. The fixed (clamped) state of the synthetic sleeper is obtained.

  The present invention can be applied not only to laying new sleepers, but also to repairing existing sleepers so that the progress of damage to sleepers can be delayed at least.

Since the present invention is configured as described above, the washer material does not fall off from the synthetic sleeper , and even if the nut is loosened, the hook bolt, in particular, the threaded portion does not play and contact the synthetic sleeper. It is possible to provide a synthetic sleeper fixing device which can prevent damage (by rubbing) of the synthetic sleeper due to contact with the screw, can be tightened without fear of crushing the screw portion, and is generally durable.

It is a partially broken side view of the device according to the present invention. It is the partially notched front view which showed the washer material applied to this invention in combination with the 2nd shock absorbing material. FIG. 3 is a plan view of FIG. 2. FIG. 3 is a bottom view of FIG. 2. It is a perspective view of a washer material. It is a perspective view of a 2nd shock absorbing material.

In the apparatus according to the present invention, a synthetic sleeper 2 is arranged on a bridge structure 1 in a direction perpendicular to the longitudinal direction of the structure 1, and the synthetic sleeper 2 is fastened with a hook bolt 3 and nuts 7A and 7B. The structure 1 is fixed to the structure 1 and arranged side by side in the longitudinal direction of the structure 1.

In addition, the said structure 1 says the bridge | bridging material which mounts and supports the synthetic sleeper 2, and generally comprises the H-section steel (or I-section steel) distribute | arranged along the longitudinal direction of the bridge, but embodiment It is not necessary to limit to those.

A synthetic sleeper (referred to a sleeper used for a bridge) 2 is a sleeper made of glass fiber reinforced resin made of glass long fiber as a reinforcing material .

The synthetic sleeper 2 is disposed on a pair of the structures 1 and 1 arranged substantially parallel to the longitudinal direction of the bridge in a direction orthogonal to the structure 1 and is provided with a cushioning material 6 (described later). It is placed through the elastic material such as rubber like the buffer materials 51a and 52a), and at the center of each end portion 2a on both sides protruding outside the rail gauge (outside the structure 1). The hook bolt 3 is inserted into the upper end portion of the vertical hole 21 by inserting the hook bolt 32 from the lower end side (from the lower surface 2b side of the synthetic sleeper 2) through the screw portion 32 on the base side on the upper end side. It is inserted through the washer 5.

The cushioning material 6 is formed of a sheet body made of rubber (or resin), and is provided on a contact surface with the structure 1 when the synthetic sleeper 2 is placed on the structure 1. 2 avoids direct contact with the structure 1 and expects the effect of preventing wear due to direct contact, and at the same time vibrates and noises due to the presence of the elastic cushioning material 5 between the structure 1 and the synthetic sleeper 2. Is intended to reduce

  The hook bolt 3 is provided with a hook 31 that is brought into contact with the lower surface of the upper flange 1a of the structure 1 on the front end (lower end) side and is locked thereto, and is inserted into the vertical hole 21 from the upper end of the vertical hole 21. The protruding base portion is provided with a screw portion 32.

As described above, the washer member 5 through which the threaded portion 32 on the base side of the hook bolt 3 is inserted projects into the cylindrical main body 51 and the cylindrical main body 51 so as to surround the cylindrical main body 51. It is comprised with the collar part 52 provided, and comprised by the steel brazed cylindrical body which coat | covered the whole area | region with the antirust film layer 5a, and the outer side of the said cylindrical main body 51 is a resin-made cylindrical 1st shock absorbing material. The first cushioning material is formed so that the cylindrical main body 51 (with the anticorrosive film layer 5a) inserted into the vertical hole 21 and the synthetic sleeper 2 do not come into direct contact with each other. By virtue of the presence of 51a, the vibration from the synthetic sleeper 2 side is absorbed so that the vibration is not transmitted to the hook bolt 3 side as much as possible.

  The collar piece 52 that constitutes the washer member 5 with the cylindrical main body 51 is a ring-shaped (perforated circular sheet-shaped) second member that is fitted around the cylindrical main body 51 at the upper edge of the vertical hole 21. By hooking through the cushioning material 52a and overlapping the second cushioning material 52a, direct contact with the sleeper 2 is avoided, transmission of vibration from the sleeper 2 side is reduced, and friction with the sleeper 2 occurs. The sleeper 2 is prevented from being damaged by rubbing.

The second cushioning material 52a is inserted into the cylindrical main body 51 by inserting the cylindrical main body 51 when the cylindrical main body 51 of the washer member 5 is inserted into the vertical hole 21 on the synthetic sleeper 2 side from above. By this, it is interposed between the collar piece 52 of the washer member 5 and the synthetic sleeper 2. The second buffer material 52a is made of rubber (weather-resistant resin may be used as a material), and its elasticity also functions to prevent the nuts 7A and 7B from being loosened. The collar piece 52 is made to overlap.

  The rust preventive film layer 5a of the washer material 5 may be formed by any means such as coating a rust preventive agent, baking, or applying a rust preventive material.

  In addition, the first cushioning material 51a on the cylindrical main body 51 side is fitted to the cylindrical main body 51 by externally fitting a resin cylinder to the cylindrical main body 51, but is fixed to the cylindrical main body 51. There is no limitation on the forming means such as external fitting and fastening to the cylindrical main body 51 using the elasticity of 51a itself.

  The second cushioning material 52a on the side of the collar piece 52 is separated from the collar member 52, that is, the washer material 5, and is combined with the washer material 5, but is adhered to the washer material 5, If integrated, it is suitable for handling during fixing work of sleepers.

  Then, the tightening nut 7A and the locking nut 7B are screwed into the threaded portion 32 of the hook bolt 3 protruding from the collar piece 52 of the washer member 5 and tightened to form the embodiment device.

  Although the description is omitted, when the hook bolt 3 is tightened with the nuts 7A and 7B, the rotation is restricted by the rotation preventing means (known), and the hook 31 is moved from the structure 1 (upper flange 1a). It is designed not to come off.

DESCRIPTION OF SYMBOLS 1 Structure 2 Synthetic sleeper 3 Hook bolt 5 Washer material 7A Clamping nut 21 Vertical hole 31 Hook part 32 Screw part 51 Cylindrical main body 52 Gutter piece

Claims (3)

An apparatus for fixing a synthetic sleepers on the structure of the bridge, in a cylindrical main body and a flange piece projecting from the upper end periphery of the cylindrical main body constitutes a steel washer member, of the seat alloy material While the cylindrical main body is fitted into a vertical hole provided in the synthetic sleeper , the collar piece is hooked to an edge of the vertical hole, and the washer is combined with the synthetic sleeper, and the vertical A hook bolt is inserted into the hole from its lower end, the hook portion on the tip side of the hook bolt is locked to the structure, and the hook bolt base protrudes from the upper end of the vertical hole through the cylindrical main body. In the fixing device for the synthetic sleeper , in which the tightening nut is screwed into the screw portion on the end side,
The cylindrical main body of the washer material is formed on the base end side of the hook bolt when the collar piece is hooked to the edge of the vertical hole and the washer material is combined with the synthetic sleeper. The threaded portion in which the end of the cylindrical main body opposite to the flange piece is formed on the base end side of the hook bolt and the threaded portion are arranged so that the threaded portion does not contact the synthetic sleeper. A synthetic sleeper fixing device formed to have a length extending to the vicinity of a boundary with a portion not formed . The synthetic sleeper according to claim 1, wherein an elastic cushioning material made of rubber, resin, or the like is interposed between each of the peripheral side surface of the cylindrical main body of the washer member and the lower surface of the collar piece and the synthetic sleeper . Fixing device. Rubber, such as resin, was受支to the structure of the synthetic sleepers via the cushioning material of the elastic fixing device synthetic sleepers according to claim 1 or 2 wherein.

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