Land vehicles – Wheeled – Occupant propelled type
Patent
1980-04-10
1982-07-27
Pekar, John A.
Land vehicles
Wheeled
Occupant propelled type
B62K 2118
Patent
active
043413943
ABSTRACT:
A connection between the handlebars and the steering fork of a bicycle wherein the handlebar stem is positioned within the steering fork. The connection includes a contractile clamping ring surrounding and connected by threads to the upper end of the fork stem. The clamping ring has an internal unthreaded surface surrounding the adjacent part of the handlebar stem and a frusto-conical external surface. A locknut loosely surrounds the handlebar stem and is connected by threads to the clamping ring. The locknut has a frusto-conical internal surface which engages the frusto-conical external surface of the clamping ring for causing engagement of the unthreaded internal surface of the clamping ring with the fork of the handlebar stem. The clamping ring has a plurality of radial cuts, and the internal surface of the upper part of the locknut is provided with a circumferential series of spaced notches which may be aligned with the cuts. A cotter pin may be inserted into one or more pairs of aligned cuts and notches to lock the clamping ring and locknut together.
REFERENCES:
patent: 674115 (1901-05-01), Heilrath
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