Synthetic-resin compression spring

Details Synthetic-resin compression spring Synthetic-resin compression spring

1985-08-07

1987-04-28

Reger, Duane A.

Spring devices

Resilient shock or vibration absorber

Nonmetallic, resilient element

188268, 267139, F16F 308

Patent

active

046608117

ABSTRACT:
A spring according to this invention has a core of an elastically deformable but substantially incompressible material and having two axially spaced end surfaces operatively engageable with objects to be relatively resiliently mounted. Thus when the two bodies engaging the end surfaces move toward each other the core swells radially. An annular belt formed of an elastic synthetic resin snugly surrounds the core between its ends. The belt can be lapped or can be a single unitary ring. It may also be formed of a plurality of independent layers having ends provided with a heat-shrunk clip for securing the ends together. To soften the initial spring characteristic the belt is corrugated and has peaks engaging the core and valleys normally not engaging the core. The corrugations may run longitudinally or transversely.

REFERENCES:
patent: 1872259 (1932-08-01), Eldridge
patent: 3448949 (1969-06-01), Kelley
patent: 4504044 (1985-03-01), Shtarkman

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