Automotive trim panel

Details Automotive trim panel Automotive trim panel

1986-07-30

1988-05-03

Kittle, John E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428166, 428286, 428291, 4283044, 4283148, 4283166, 296 39A, 296211, 296214, B32B 324, B32B 326, B60R 1302

Patent

active

047419458

ABSTRACT:
The acoustical performance of automotive trim panels is improved, especially with respect to noise generated by structural vibration of an automobile and synchronous vibration of the trim panel itself, by positioning a dead, vibration-damping, foam material between the automobile frame and a semi-flexible support layer of the trim panel, the trim panel also including an open-celled, flexible, airborne sound-absorbing foam layer bonded to the opposing face of the support layer, and wherein the dead foam material has a substantially lower resilience value and a substantially higher recovery rate than the open-celled foam layer.

REFERENCES:
patent: 3126978 (1964-03-01), Bergstrom
patent: 3160549 (1964-12-01), Caldwell et al.
patent: 3985198 (1976-10-01), Kurtze et al.
patent: 4042746 (1977-08-01), Hofer
patent: 4083595 (1978-04-01), Maier
patent: 4172918 (1979-10-01), Doerer
patent: 4211590 (1980-07-01), Steward et al.
patent: 4263356 (1981-04-01), Nomura et al.
patent: 4340129 (1982-07-01), Salyers

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