JPH078406U - Insulation structure of metal sleepers - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure reliable insulation between the rail and the metal sleeper. [Structure] An insulating track pad 3 is interposed between a metal sleeper 1 and a rail 2. At both ends of the rail 2, band roll clips 7 for fastening the rail 2 to the sleeper 1 via a pad member 8 made of an insulating material are arranged. Orbital pad 3
The sealing material 10 is arranged between the contact member 8 and the contact member 8. [Effect] The sealing material 10 prevents rainwater and the like from entering between the pad member 8 and the track pad 3, and ensures the insulating property of that portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an insulating structure for a metal sleeper.

[0002]

[Prior art]

 Conventionally, railroad tracks have a roadbed made of gravel, crushed stone, etc. on the roadbed, sleepers lined up on the roadbed, and a pair of rails laid on it. In recent years, metal sleepers have been proposed in place of the wooden sleepers because they have problems such as decay and splitting. As a metal sleeper, it has been proposed to fix the rail to the sleeper using a pan-roll clip.

[0003]

[Problems to be solved by the device]

 However, with metal sleepers, it is necessary to insulate the rails from the sleepers, and there is the problem that reliable insulation must be maintained even if rainwater or the like enters the insulating section.

Therefore, the present invention aims to solve such problems and to ensure a reliable insulation between the rail and the sleeper.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has an insulating track pad interposed between a metal sleeper and a rail, and the rail is used as a sleeper on both sides of the rail with an insulating pad member. A fastening member for fastening is placed, and a seal material is placed between the track pad and the padding member.

[0006]

[Action]

 With such a configuration, the track pad ensures insulation between the rail and the bottom of the sleeper. Further, the contact member ensures the insulation between the fastening member and the rail. Further, since the space between the track pad and the abutting member is sealed by the sealing material, it is possible to prevent a situation in which rainwater and the like enter this portion and the rail and the sleeper are electrically connected to each other.

[0007]

【Example】

 1 and 2 show an embodiment of the present invention. Here, 1 is a sleeper, which is arranged on a ballast formed of ballast or crushed stone to support the rail 2. An insulating track pad 3 made of a rubber material or the like is interposed between the rail 2 and the sleeper 1. The sleeper 1 is made of a hollow casting and has a rail accommodating portion 4 and shoulder portions 5 provided on both sides of the rail accommodating portion 4 so as to project upward. The shoulder portion 5 is formed with a hole 6 in the direction of the rail 2.

A pandroll clip 7 is attached to the hole 6, and the pandroll clip 7 is provided with a pad member 8 made of an insulating material and made of a hard resin or the like and having an L-shaped cross section. , Rail 2 is fastened to sleeper 1.

Between the bottom surface of the contact member 8 on the side of the flange 9 of the rail 2 and the top surface of the end of the track pad 3 protruding from the rail 2 corresponding to this bottom surface, a soft rubber member or A sealing material 10 made of resin or the like is interposed.

According to such a configuration, the insulating track pad 3 is interposed between the rail 2 and the sleeper 1, so that the insulating state between the two is secured in this portion. Further, since the contact member 8 is made of an insulating material, the contact member 8 insulates the pan rod clip 7 from the rail 2, and also in this portion, the insulation between the rail 2 and the sleeper 1 is provided. The state is secured. When the rail 2 is fastened to the sleeper 1 by the pan roll clip 7, the seal material 10 is appropriately compressed between the contact member 8 and the track pad 3 and seals the two in a pressure-tight state.

Therefore, the rail 2 and the sleeper 1 are completely insulated from each other, and the required insulation performance is exhibited. In addition, since the seal member 10 seals the space between the contact member 8 and the track pad 3, rainwater or the like may infiltrate into the space between the rail member 2 and the sleeper 1 to cause a situation. Is also prevented, and reliable insulation performance is expected from this point as well.

FIG. 3 shows another embodiment of the present invention. Here, the sealing material 10 is made of a soft rubber material integrally formed with the rubber track pad 3, and is compressed by the bottom surface of the contact member 8 pressed by the pan roll clip 7. By doing so, the desired sealing performance is demonstrated.

[0013]

[Effect of device]

 As described above, according to the present invention, the track pad can ensure the insulation between the bottom surface of the rail and the sleeper, and the abutment member can ensure the insulation between the fastening member and the rail. Since the seal material is placed between the rail and the member, it is possible to prevent rainwater from entering the space between the rail and the rail, and to prevent the rail from connecting to the sleeper, resulting in insulation between the rail and sleeper. The state can be secured.

[Brief description of drawings]

FIG. 1 is a sectional view showing an insulating structure of a metal sleeper according to an embodiment of the present invention.

FIG. 2 is a plan view of the portion shown in FIG.

FIG. 3 shows a track pad and a sealing material according to another embodiment of the present invention, (a) is a plan view thereof, and (b) is a front view thereof.

[Explanation of symbols]

 1 sleeper 2 rail 3 track pad 7 pan roll clip 8 padding member 10 sealant

Front page continuation (72) Inventor Noriji Abe 2-838 Hikarimachi, Kokubunji, Tokyo Inside the Railway Technical Research Institute (72) Inventor Noriaki Higashi 4-24 Shibata, Kita-ku, Osaka-shi, Osaka Issue West Japan Railway Company (72) Inventor Tetsuro Nishida 2-4-24 Shibata, Kita-ku, Osaka Prefecture Osaka Prefecture West Japan Railway Company (72) Inventor Akio Tanaka 2 Ohamacho Amagasaki City Hyogo Prefecture 26-chome Kubota Mukogawa Works (72) Inventor Haruo Shimizu 2-26 Ohama-cho Amagasaki City, Hyogo Pref. Kubota Mukogawa Works

Claims (2)

[Scope of utility model registration request] 1. A fastening member for interposing an insulating track pad between a metal sleeper and a rail, and for fastening the rail to the sleeper on both sides of the rail via a pad member made of an insulating material. An insulating structure for a metal sleeper, characterized in that a sealing material is arranged between the track pad and the pad member. 2. The insulating structure for a metal sleeper according to claim 1, wherein the sealing material is formed integrally with the track pad.