Abstract A cushion to provide added impact resistance to front or back bumpers of passenger cars or light trucks. The cushion may be bolted to front or back standard bumpers and consists of two steel plates or rails about 4" wide, and 1/4" thick separated by some 3". It may also be chrome plated for aesthetic reasons. The same rail is bolted to each respective bumper and the interspace between the rails includes steel coil springs approximately 4" apart, welded to and separating the two rails. Each spring is encapsulated with a heat resistant tape wrapping and the space outside the springs and between the rails is filled with shock-absorbing rubber or plastic material. The interior of each spring is accordingly free of the shock-absorbing material and can function as a coil spring without the inhibition of the resilient filling material.
A shock absorbing bumper cushion comprising, an elongated substantially rigid backing rail adapted for fastening to a vehicle or structure to be protected, an impact absorbing substantially rigid front rail generally parallel to and spaced from said backing rail, said rails being maintained in generally parallel relationship by means of spaced resilient metal springs secured front and back to said backing and impact absorbing rails, the interspace between said rails being substantially filled with shock absorbing compressible resilient material, each of said spaced resilient springs being encapsulated in a wrapping of flexible tape to prevent encroachment of said compressible resilient material, whereby said springs may be compressed and relaxed on impact without interference from said shock absorbing compressible resilient material.
Claim 2
Dependent Claim
120 words
A shock absorbing bumper cushion comprising, an elongated substantially rigid backing rail adapted for fastening to a vehicle or structure to be protected, an impact absorbing substantially rigid front rail generally parallel to and spaced from said backing rail, said rails being maintained in generally parallel relationship by means of spaced resilient metal springs secured front and back to said backing and impact absorbing rails, the interspace between said rails being substantially filled with shock absorbing compressible resilient material, each of said spaced resilient springs being encapsulated in a wrapping of flexible tape to prevent encroachment of said compressible resilient material, whereby said springs may be compressed and relaxed on impact without interference from said shock absorbing compressible resilient material.
Claim 3
Dependent Claim
15 words
The device of claim 1 wherein said spaced resilient metal springs are helical coil springs.
Claim 4
Dependent Claim
16 words
The device of claim 1 wherein said shock absorbing compressible material is a polymerizable rubbery material.
Claim 5
Dependent Claim
15 words
The device of claim 1 wherein the shock absorbing compressible material is of formed plastic.
Claim 6
Dependent Claim
21 words
The device of claim 2 wherein said helical coil springs are welded, front and back to said front and backing rails.