Cushioned bushing for an articulated motorcycle frame

Details Cushioned bushing for an articulated motorcycle frame Cushioned bushing for an articulated motorcycle frame

1999-03-03

2000-10-17

Hurley, Kevin

Motor vehicles

Special wheel base

Having only two wheels

280284, 384125, B62K 2512

Patent

active

061316849

ABSTRACT:
An improved motorcycle frame (20) has a first part (21) and a second part (23) mounted for pivotal movement relative to the first part about an axis (x--x). The improvement includes a cushioned bushing (17) operatively arranged between the two frame parts for enabling pivotal movement therebetween and for damping vibrations transmitted therebetween. The bushing has a rod (45) substantially coincident with the pivotal axis; a first cushion (27) provided with a blind recess for receiving one marginal end portion of the rod; a second cushion (27') provided with a blind recess for receiving another marginal end portion of the rod; and compression means (37) for exerting axial forces on the cushions to create forces between the cushions and the rod marginal end portions. In a preferred embodiment, the cushions are made of dual-durometer urethane materials.

REFERENCES:
patent: 1526632 (1925-02-01), Fischback
patent: 4053034 (1977-10-01), Katzer
patent: 4907814 (1990-03-01), Foster
patent: 5390758 (1995-02-01), Hunter et al.
patent: 5487443 (1996-01-01), Thurm
patent: 5749591 (1998-05-01), Thurm

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