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The sound insulation structure of the waistline part of the automobile and the door glass for the automobile

一种腰线部、门玻璃的技术，应用在车辆部件、挡风玻璃、窗等方向，能够解决摩擦声音等问题，达到抑制摩擦声音的效果

Active Publication Date: 2022-04-26
AGC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the soundproof material moves while being in contact with the door panel and the sealing member, and there is also a problem of friction sound.

Method used

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  • The sound insulation structure of the waistline part of the automobile and the door glass for the automobile
  • The sound insulation structure of the waistline part of the automobile and the door glass for the automobile
  • The sound insulation structure of the waistline part of the automobile and the door glass for the automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0108] Through the following experiments, the relationship between the static friction coefficient and the friction sound related to the soundproof structure (A) and the soundproof structure (B) was obtained.

[0109] [soundproofing structure (A)]

[0110] As the viscoelastic member, prepare five kinds of viscoelastic members (20 mm × 20 mm, thickness 20 mm) made of polyurethanes (1) to (5) shown in Table 1 and materials for panels for automobile door panels (high-strength materials: A panel test sample (70mm×150mm, thickness 0.7mm) composed of a high-tensile steel plate) was measured for the coefficient of static friction (A) by the above-mentioned method. In addition, polyurethanes (1) to (5) are polyurethane molded articles in which the inside is a foam and the surface layer part is made of a non-foam, produced as follows. In addition, rubbing sounds of the above-mentioned five kinds of viscoelastic members and the above-mentioned test plate generated during the measuremen...

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Abstract

Provide the waistline part sound insulation structure of the automobile and the automobile door glass used in the sound insulation structure, by suppressing the intrusion of the sound from the outside of the car through the waistline part and the sound generated by the vibration of the door glass itself, so that when the door glass is closed The sound insulation state in the car is improved to a high level, and the friction sound of parts that is generated with the opening and closing of the door glass is suppressed. The waistline part sound insulation structure of the automobile includes: an automobile door panel, which has two panels facing each other, and has a sealing member on each of the opposing surfaces of the panels along the waistline; and a door glass, which can be opened. The door glass is closed between two panels, and has a door glass body, and has a viscoelastic member on the surface of the door glass body, and the viscoelastic member is in contact with the panel when the door glass is closed to seal the panel and the door. The gap between the glass bodies, and the static friction coefficient of the surface contacting the panel is 2.5 or less.

Description

technical field [0001] The present invention relates to an automobile waistline soundproof structure and an automobile door glass used for the soundproof structure. Background technique [0002] Conventionally, as one of the methods of improving the sound insulation performance of the automobile interior, a method of providing a sound insulation structure along the waistline of the automobile has been employed. As such a sound-insulating structure, for example, Patent Document 1 discloses a sound-insulating structure in which, when the door glass is closed, the lower end portions of the outer seal portion and the inner seal portion attached to the door panel and the portion corresponding to the lower end portion of the door glass A soundproof material is provided on one side, and a protrusion elastically contacting the soundproof material is provided on the other side. [0003] The soundproof structure described in Patent Document 1 blocks the intrusion of sound from the ou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60J1/17
CPCB60J1/17B60J10/75B60J10/16B60J10/50B60J10/76B60J10/33
Inventor 山田大介
Owner AGC INC