Insulating layer with integral grommets
DCFirst Claim
1. An acoustical barrier adapted to be mounted to a barrier wall, the acoustical barrier comprising:
- a mass layer of a molded construction and sound dampening characteristics, the mass layer having an inner surface that is adapted to face the barrier wall and an outer surface adapted to face away from the barrier wall;
a grommet integrally molded as a single piece with the mass layer, the grommet having a continuous wall with an upper portion of the wall integrally formed with the inner surface of the mass layer and a lower portion of the wall having a lower edge adapted to contact the barrier wall, an inner surface of the continuous wall defining an opening in the grommet; and
an opening extending through the mass layer between the inner and outer surfaces thereof, the opening in the grommet being in communication with the opening in the mass layer.
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Abstract
An acoustical barrier (10) is mounted to the barrier wall (20) of a motor vehicle. The acoustical barrier (10) includes a mass layer (12) of molded construction and sound dampening characteristics. The mass layer (12) includes a plurality of grommets (14, 14'"'"', 14", 54) integrally molded as a single piece with a lower surface of the mass layer. Each grommet (14, 14'"'"', 14", 54) has a continuous wall with an inner peripheral surface (27, 27'"'"', 27") with an upper portion of the wall integrally formed with the inner surface (18) of the mass layer and a lower portion of the wall having a lower edge (22, 22'"'"', 22") abutting the barrier wall (20). The inner surface (27, 27'"'"', 27") of the continuous wall defines an opening in each grommet (14, 14'"'"', 14", 54). A plurality of openings (25, 25'"'"', 25") in the mass layer are in communication with at least some of the grommet openings. Various fasteners (26, 70), shafts or sleeves (62), cables (64), wires, and other vehicle accessories can extend through one or more of the grommets and through corresponding openings (29) in the vehicle barrier wall (20)
41 Citations
23 Claims
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1. An acoustical barrier adapted to be mounted to a barrier wall, the acoustical barrier comprising:
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a mass layer of a molded construction and sound dampening characteristics, the mass layer having an inner surface that is adapted to face the barrier wall and an outer surface adapted to face away from the barrier wall; a grommet integrally molded as a single piece with the mass layer, the grommet having a continuous wall with an upper portion of the wall integrally formed with the inner surface of the mass layer and a lower portion of the wall having a lower edge adapted to contact the barrier wall, an inner surface of the continuous wall defining an opening in the grommet; and an opening extending through the mass layer between the inner and outer surfaces thereof, the opening in the grommet being in communication with the opening in the mass layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a motor vehicle having a barrier wall separating a passenger compartment from an engine compartment and an acoustical barrier mounted to the barrier wall, the barrier wall having an opening extending therethrough, the acoustical barrier including a mass layer of a molded construction and sound dampening characteristics, the mass layer having an inner surface that faces the barrier wall and an outer surface that faces away from the barrier wall;
- the improvement comprising;
a grommet integrally molded as a single piece with the mass layer, the grommet having a continuous wall with an upper portion of the wall integrally formed with the inner surface of the mass layer and a lower portion of the wall having a lower edge abutting the barrier wall, an inner surface of the continuous wall defining an opening in the grommet; and an opening extending through the mass layer between the inner and outer surfaces thereof, the opening in the grommet being in communication with the opening in the mass layer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
- the improvement comprising;
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18. In a motor vehicle acoustical barrier assembly having a barrier wall separating a passenger compartment from an engine compartment and an acoustical barrier mounted to the barrier wall, the barrier wall having a plurality of openings extending therethrough, the acoustical barrier including a mass layer of a molded construction and sound dampening characteristics, the mass layer having an inner surface that faces the barrier wall and an outer surface that faces away from the barrier wall, the mass layer further having an opening in communication with each of the plurality of openings in the barrier wall;
- the improvement comprising;
a plurality of grommets integrally molded as a single piece with the mass layer, each grommet having a continuous wall with an upper portion of the wall integrally formed with the inner surface of the mass layer and a lower portion of the wall having a lower edge abutting the barrier wall, and each of the grommets surrounding one of said plurality of barrier wall openings and one of the mass layer openings. - View Dependent Claims (19, 20, 21, 22, 23)
- the improvement comprising;
Specification