Land vehicles – Wheeled – Occupant propelled type
Patent
1992-05-14
1993-09-14
Focarino, Margaret A.
Land vehicles
Wheeled
Occupant propelled type
280275, B62K 2530
Patent
active
052442241
ABSTRACT:
A bicycle frame having shock absorbing characteristics. The bicycle frame includes an elongate down tube and seat tube having a crossbar rigidly attached thereto and extending therebetween. Pivotally connected to a bottom bracket axle attached to the lower end of the seat tube is a rocker arm linkage. The frame further comprises a shock absorber having one end pivotally connected to the crossbar and a second end pivotally connected to the rocker arm linkage. Additionally, first and second chain stay members are provided having front ends pivotally connected to the opposed sides of the rocker arm linkage and rear ends rigidly attached to a pair of rear tire axle receiving members. First and second chain stay members are also included which have front ends pivotally connected to the crossbar and rear ends pivotally connected to the pair of rear tire axle receiving members. The rocker arm linkage is normally held in abutting contact against the axle receiving bracket by the force exerted thereagainst by the shock absorber and the chain stay members. Upon the exertion of a sufficient upward force to the rear tire axle receiving members, the rocker arm linkage is pivoted and caused to move out of abutting contact with the axle receiving bracket and compress the shock absorber.
REFERENCES:
patent: 4789174 (1988-12-01), Lawwill
patent: 5121937 (1992-06-01), Lawwill
1992 Cannondale Spec--Suspension Mountain Bicycles--Article 10 pages.
TREK 9000 Series Spec--"This Beauty Is A Beast"--Article 8 pages.
Fisher RS-1--Article--4 pages--Mountain Bike Action/Mar. '92.
Suspension Mania Strikes Cycling--Mountain Bike Action/Feb. '92 3 pages.
Boulder Intrepid Al--2 pages--Mountain Bike Action/Mar. '92.
Team Shockblok--6 pages--Mountain Bike Action/Jul. '92.
Welcome to the Next Generation . . . --9 pages--Mountain Bike June. '92.
Schwinn S.A.S.S.--7 pages--Mountain Bike Action--May 1992.
Offroad Pro--Flex 550--3 pages--Offroad.
If The Best Motorcycle . . . "Litespeed Suspension", Mountain Bike--Jul. '92 8 pages.
Slingshot--Mountain & City Biking, 6 pages.
Focarino Margaret A.
GT Bicycles, Inc.
Hurley Kevin
LandOfFree
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