Bicycle suspension system

Details Bicycle suspension system Bicycle suspension system

B - Operations, Transporting

62

K

B62K 25/08 (2006.01) B62K 21/20 (2006.01)

Patent

CA 2266576

There is disclosed herein a suspension fork assembly particularly for use with bicycles. The assembly comprises an outer tube (14) which can be mounted in and extend through the head tube (11) or can be mounted via brackets (7, 8) to the steering tube (18) of the bicycle frame, and an inner tube (13) that telescopes within the outer tube. A shock absorbing system, preferably in the form of a cartridge is provided within the tubes. The inner surface (28) of the outer tube (14) and the otuer surface (20) of the inner tube (13) each have a plurality of axially arranged opposing longitudinal flat sections, such as four on each side. A plurality of needle bearings (36-39) are disposed between the tubes on these flat sections.

L'invention concerne un ensemble fourche de suspension destiné en particulier à des bicyclettes. Cet ensemble comprend un tube externe (14) qui peut être monté soit sur le tube de direction (11) de manière à le traverser, soit, à l'aide de supports (7,8), sur le tube de direction (18) du cadre de bicyclette, et un tube interne (13) télescopique à l'intérieur du tube externe. Un systè me amortisseur, se présentant de préférence sous forme de cartouche, est prévu à l'intérieur des tubes. La surface intérieure (28) du tube externe (14) et la surface extérieure (20) du tube interne (13) sont toutes deux dotées d'une pluralité de sections plates longitudinales, disposées de façon à être opposées axialement, le système comprenant, par exemple, quatre sections plates de chaque côté. Une pluralité de roulements à aiguilles (36-39) est disposée entre les tubes sur lesdites sections plates.

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