Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1991-12-02
1993-02-16
Lorence, Richard
Machine element or mechanism
Control lever and linkage systems
Elements
745511, 188319, 280276, B62K 2114
Patent
active
051860740
ABSTRACT:
A handlebar shock absorber for bicycles and the like comprises two pivotably coupled support members, one of which attaches to the bicycle handlebars while the other attaches to the steering fork. An offset link is pivotably mounted to one of the members so as to slidably engage the other member. A compression spring extends along the link and urges the handlebar support member to an upper, rest position. Shocks transmitted along the front fork of the bicycle are resiliently absorbed by rotation of the handlebar mounting member against the compression spring. The degree of compression of the spring may be changed for different riding courses. A hydraulic piston/cylinder combination coupled to the offset link adds to the shock absorbing capability of the device. A metering rod is adjustable in a piston orifice to enable a rider to adjust the shock absorber stiffness without dismounting.
REFERENCES:
patent: 583483 (1897-06-01), Kellogg
patent: 1060442 (1913-04-01), Erickson
patent: 1183389 (1916-05-01), MacLean
patent: 1306016 (1919-06-01), MacLean
patent: 1468835 (1923-09-01), Rosen
patent: 1616021 (1927-02-01), Arzens
patent: 1640454 (1927-08-01), Kuhn
patent: 2324403 (1943-07-01), Kuhn
patent: 4420989 (1983-12-01), Finkle
Article entitled "Bicycle Suspensions" (Bicycle Guide, Aug. 1988, pp. 75-79).
Lorence Richard
Pitts Andrea
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