Pedalling device with suspension for cycles

Details Pedalling device with suspension for cycles Pedalling device with suspension for cycles

1995-08-15

1997-08-05

Marmor, Charles A.

Machine element or mechanism

Elements

Cranks and pedals

745943, 280259, 280283, B62M 300, B62K 2504

Patent

active

056531508

ABSTRACT:
A pedalling device, notably usable for all-surface bikes, comprises a pair of cranks in mechanical connection with a crank-gear spindle, and actuating means able to occupy a first pedalling state allowing direct mechanical transmission of the torque exerted by the pedals in the pedalling direction by means of a rigid coupling in rotation of the two cranks with respect to the transmission means, and a second shock-absorbing state making use of a suspension device procuring flexible coupling in rotation of the two cranks with respect to the frame when the user is pressing on both pedals exerting opposing forces without pedalling. The actuating means comprise a half-moon securedly united to the crank-gear spindle, and a cradle securedly united to the corresponding crank, in such a way as to be securedly united in the first conventional pedalling state, and independent from one another in the second state following a relative rocking movement determined by operation of the suspension device.

REFERENCES:
patent: 5060536 (1991-10-01), Boys
patent: 5157988 (1992-10-01), Pinkstock

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