Rear fork for a motorcycle

Details Rear fork for a motorcycle Rear fork for a motorcycle

1995-12-07

1998-03-10

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

72356, B21K 2112

Patent

active

057248508

ABSTRACT:
The present invention provides a pivot pipe for a rear fork of a motorcycle, capable of being formed at comparatively low cost by a simple process. The pivot pipe has a lightweight, strong construction and does not vary widely in quality from one pivot pipe to another. The pivot pipe is connected to a right swing arm and a left swing arm and includes a first end supported on a needle bearing mounted on a pivot shaft and a second end having an inside diameter greater than that of the first end supported on a ball bearing mounted on the pivot shaft. The pivot pipe is formed by expanding one end of a single pipe by press working.

REFERENCES:
patent: 1151753 (1915-08-01), Bates
patent: 2027922 (1936-01-01), McNaught
patent: 3508428 (1970-04-01), Matson
patent: 4301672 (1981-11-01), Simon
patent: 4454745 (1984-06-01), Cudini
patent: 4594874 (1986-06-01), Bononi et al.
patent: 4782679 (1988-11-01), Bogel
patent: 5203194 (1993-04-01), Marquardt

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