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Sound-absorbing panels

A technology for sound-absorbing panels and substrates, which is used in sound-emitting equipment, railway car body parts, instruments, etc., can solve the problems of inability to meet the heat resistance, melting and dripping resistance of railway vehicles, and achieve the effect of improving sound absorption.

Inactive Publication Date: 2017-05-10
CENTRAL JAPAN RAILWAY COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, similar to the above case, there may be a possibility that the heat resistance and melt-dripping resistance required for the interior of the railway vehicle cannot be satisfied.

Method used

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Embodiment Construction

[0033] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, the position of the railway vehicle 1 to which the sound-absorbing panel of the present invention is mounted will be described. figure 1 It is a schematic diagram showing the passenger compartment of a railway vehicle 1 . and, in figure 1 In , illustration of seats etc. is omitted.

[0034] In the passenger compartment of the railway vehicle 1, a plurality of windows W are arranged on the inner wall surface of the passenger compartment at predetermined intervals along the longitudinal direction; A seat number plate (not shown), clothes hooks (not shown), etc. are arranged; and a luggage rack N protrudes from the upper inner wall of the space S1 toward the passenger compartment.

[0035] The sound-absorbing panels of the present invention include: window-side sound-absorbing panels 10, upper side wall sound-absorbing panels 20, luggage rack lower sound-ab...

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Abstract

The present invention provides a sound-absorbing panel capable of satisfying heat resistance and melt-dripping resistance required for the interior of a railway vehicle. The sound-absorbing panel (10) between windows is laminated with five sheets of first to fifth glass cloths (13-17) on an aluminum substrate (11). In addition, the fifth glass cloth (17) is pasted on the back side of the substrate (11) by an adhesive edge, and the first to fourth glass cloths (13, 14, 15, 16) are fixed by the needles of the stapler. That is, the first glass cloth (13) and the substrate (11) are fixed by an adhesive, and the adhesive is prevented from melting by five sheets, that is, the first to fifth glass cloths (13-17). The fifth glass cloth (13 to 17) and the substrate (11) prevent the adhesive that fixes the edge of the fifth glass cloth (17) to the other side of the substrate (11) from melting.

Description

technical field [0001] The present invention relates to a sound-absorbing panel, and particularly relates to a sound-absorbing panel capable of satisfying heat resistance and melt-dripping resistance required for the interior of a railway vehicle. Background technique [0002] Conventionally, various sound-absorbing panels have been proposed. For example, Patent Document 1 below describes a laminate in which glass cloth (Glass Cross) is laminated on one surface of a punched metal to achieve excellent sound absorption and fire resistance. [0003] In addition, the following Patent Document 2 describes a technology in which glass wool, sponge, and foamed resin are stacked and arranged between two pieces of stamped metal as a cover for a luggage rack of a railway vehicle, thereby absorbing the air in the passenger compartment. noise. [0004] prior art literature [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 9-111911 [0006] Patent Document 2: Japan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D17/18G10K11/16
CPCB61D17/18G10K11/168B61D17/00B61D25/00B61D37/003
Inventor 高桥幸生角田裕树二村有哉林孝一小泽直也长谷政树丸山直行
Owner CENTRAL JAPAN RAILWAY COMPANY
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