JPH01315501A - Soundproofing device in railway - Google Patents

Abstract

PURPOSE:To prevent the occurrence of noise, after a main rail has been placed on a metallic pan-type rail each of whose both ends has been bent in the L- shape via a soundproof material, by fixing the rail to the sleeper, so that a space is provided between the soundproof material and the pan-type rail at both ends. CONSTITUTION:A metallic pan-type rail 1 each of whose both ends has been bent in the L-shape is fixed on a sleeper 7. Next, a soundproof member 2 having a space 3 in its central part and consisting of rubber, hard synthetic resins, or the like is laid down inside the pan-type rail 1. Then, a space 6 is provided between the soundproof member 2 and the pan-type rail 1 at both ends, and a main rail 4 is placed on the soundproof member 2. And the main rail 4 is fixed to the sleeper 7 via the pan-type rail 1 by means of clamps 5. Thus, the vibration sound produced at the joints of rails can be absorbed, so that noise can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to a soundproofing device for railway rails configured to reduce impact noise such as friction noise or vibration noise that occurs when a train is running.

BACKGROUND OF THE INVENTION Conventionally known railway laying equipment uses sleepers lined up horizontally underneath to support the track on a ballast, which eliminates noise such as friction noise or vibration between railway track joints and train wheels and the track. It's making a lot of noise.

Problems to be Solved by the Invention Conventional Technology 1 In order to prevent noise, barriers are erected on both sides of the track to eliminate the conduction of sound waves. Even if there was a barrier effect, there was a problem in that vibration noise could not be eliminated.

Therefore, the object of the present invention is to provide a device for preventing noise generated when a train is running.

Means for Solving the Problems In order to achieve the above object, in the soundproofing device of the present invention, a soundproofing member having substantially the same shape as the metal pillar receiver 1K is continuously laid in the longitudinal direction of the line, A space is formed between the bent parts at both ends, both ends of the soundproofing member, and the middle part of the soundproofing member, and a rail is placed on the soundproofing member, and the tip of the rail or the bent part is folded with a tightening fitting. The steel portion may be provided so as to protrude inwardly so as to cover the upper end surface of the soundproofing member.

Furthermore, by interposing an auxiliary soundproofing material between the music receiving arm sleeper and the sleeper, movement noise can be reduced.

Effect: Every time a train passes over the track constructed as described above, the sound is absorbed by the soundproofing member, and the frictional noise between the train's wheels and the rails is reduced. Further, it is considered that the amplitude of the sound waves is weakened by atmospheric pressure in the gap between both ends of the sound absorbing member and the bent portions at both ends of the saucer rail, and the noise is further reduced in conjunction with the sound absorption of the sound insulating member.

Embodiment To explain the embodiment with reference to the drawings, in FIG.
A metal saucer rail α) having a bent portion in the shape of a shape is laid, and a soundproofing member ■ having both ends bent in an L shape (B) is installed between the main rail ■ and the saucer rail (1). ,
Vibration is reduced by using hard rubber, synthetic rubber, hard synthetic resin, etc. that have vibration resistance and sound absorption properties. (3) is a space formed in a slightly central part of the soundproofing member (2), and is used to adjust the load or provide sound absorption between the main rail (■) and the saucer rail (1) for the soundproofing member (2). It is something that you have. ■ is a tightening fitting that fixes the entire track by tightening each rail (υ (4)) to the sleeper with so-called bolts. ■ is a gap between the bent parts at both ends of the saucer rail (1) It acts to control the vibration sound waves between the bent parts (b) formed at both ends of the soundproofing member (2).■ is an auxiliary soundproofing member, which is interposed between the sleeper ■ and the saucer rail (1). I am installing it.

In the embodiment shown in Fig. 2, the tip of the bent part (2) of the saucer rail is bent inward at a right angle (the hook part) and extended to the upper end surface of the bent part (2) of the soundproofing member (2). The vibration noise generated in the gap (1) is covered to prevent it from reaching the outside, and the sound waves of the vibration noise are eliminated by one trowel.

Effects of the Invention Since the present invention is configured as described above, it has the following effects.

Since the soundproofing material is installed continuously on the underside of the main rail,
Absorbs vibration sounds generated at joints to reduce noise generation.

In addition, since the friction noise of the main rail is received by the receiving tray rail, the soundproofing member is interposed, and the gap and the upper surface of the gap are formed so as to be held together by the hook e9 of the receiving tray rail, which works well with the elastic action of the soundproofing member. You can lower the sound quality and reduce the sound.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a soundproofing device of the invention, and FIG. 2 is a sectional view showing another embodiment of the invention. 1-・-・Saucer rail 2・-Soundproofing member 3-・-・
- Space 4 - Main rail 5 - - Clamping metal X
6- Gap, O wood 8-・-Soundproofing auxiliary material

Claims (1)

[Scope of Claims] 1. A metal saucer rail with both sides bent in an L shape (A).
1), a space part (3) is formed in the center, and a soundproof member (2) with both ends thereof bent in an L shape (B) is laid, and the bent part (A) of the saucer rail (1) is installed. A gap (6) is formed between the sound insulating member (2) and the bent portion (b) of the sound insulating member (2), a main rail (4) is placed on the sound insulating member (2), and the rail (4)
Soundproofing device 2 for a railway rail, characterized in that the upper end of the bent portion (a) of the tray rail (1) is fixed with a fastening fitting (5) via the tray rail (1). The hook part (C) is formed in the direction of the soundproofing member (C).
2) The saucer rail 3 according to claim 1, wherein the saucer rail 3 is formed to protrude on both bent end surfaces of the tray rail 3.The saucer rail 3 according to claim 1, wherein a soundproofing auxiliary member (8) is interposed between the saucer rail (1) and the sleeper (7). Soundproofing device for railway rails according to 1.