Vehicular soundproof structure

Details Vehicular soundproof structure Vehicular soundproof structure

1987-09-30

1989-04-25

Fuller, B. R.

Acoustics

Sound-modifying means

Sound absorbing panels

181291, 181294, E04B 182

Patent

active

048239097

ABSTRACT:
A soundproof structure for vehicle use includes a vehicle body forming panel, a lower side sound absorbing foamed resin layer on the panel, a rigid sound insulating panel on the foamed resin layer, and a press means between the vehicle body forming panel and the sound insulating panel to urge the sound insulating panel toward the former panel, the press means acting to hold the lower side foamed resin layer in compressed state, and an upper side sound absorbing layer being further laminated on the sound insulating panel.

REFERENCES:
patent: 4128683 (1978-12-01), Nomura et al.
patent: 4340129 (1982-07-01), Salyers
patent: 4488619 (1984-12-01), O'Neill
patent: 4559255 (1985-12-01), Shimode et al.
patent: 4574915 (1986-03-01), Gahlau et al.
patent: 4705139 (1987-11-01), Gahlau et al.
patent: 4735284 (1988-04-01), Gahlau et al.

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