Bicycle shock-absorbing apparatus

Details Bicycle shock-absorbing apparatus Bicycle shock-absorbing apparatus

1991-04-05

1992-02-18

Halvosa, George E. A.

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

267 34, 267151, 267170, 280276, 280284, F16F 307, F16F 1300

Patent

active

050887050

ABSTRACT:
A bicycle shock-absorbing apparatus comprises an inner tube and an outer tube. The inner tube is inserted into the outer tube. An upper spring socket and a lower spring socket are disposed in the inner tube and the outer tube separately. A compression spring is disposed between the spring sockets, oil being filled between the spring sockets. The inner tube is fixedly attached to the upper spring socket and corelatedly actuated with the spring to achieve a shock absorbing effect. A hole is formed in the center of the upper spring socket, enabling oil to flow therethrough. An oil seal is disposed inside the top of the outer tube to prevent oil spillage. An air inlet socket is attached inside an upper wall of the inner tube, while an air inlet valve is received by the air inlet socket to enable inflation of the inner tube. The air, in cooperation with the spring and the oil, provide elasticity for the bicycle shock-absorbing apparatus.

REFERENCES:
patent: 3687438 (1972-08-01), Rickard
patent: 4318535 (1982-03-01), Imai
patent: 4971344 (1990-11-01), Turner

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