Bicycle head tube sealing structure

Details Bicycle head tube sealing structure Bicycle head tube sealing structure

1995-09-13

1997-08-19

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Elements

280279, B62K 2112

Patent

active

056576706

ABSTRACT:
A bicycle head tube sealing structure including a plug cap at the top end of the head tube, a packing block disposed inside the top tube of the front fork, a screw inserted through the plug cap and threaded into the packing block, a stop plate mounted inside the top tube of the front fork, a spring mounted around the screw and stopped between the plug cap and the stop plate, and an expansion ring mounted around the screw between the stop plate and the packing block when, the screw is turned in one direction, the packing block is forced upwards to squeeze the expansion ring against the top plate, causing the top tube and of the front fork firmly secured to the head tube; when the screw is turned in the reversed direction, the packing block is forced downwards to release the expansion ring, for permitting the top tube of the front fork to be disconnected from the head tube.

REFERENCES:
patent: 5095770 (1992-03-01), Rader, III
patent: 5319993 (1994-06-01), Chiang
patent: 5387255 (1995-02-01), Chiang
patent: 5400676 (1995-03-01), Kao
patent: 5536104 (1996-07-01), Chen

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