Adjustable upright tube of a bicycle handlebar

Details Adjustable upright tube of a bicycle handlebar Adjustable upright tube of a bicycle handlebar

1995-02-03

1996-04-23

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Elements

745511, 280279, B62K 2114

Patent

active

055093280

ABSTRACT:
A bicycle handlebar upright tube assembly comprises a head tube, a handlebar upright tube, and an adjusting device. The head tube is fastened at the bottom end thereof with a front fork and at the top end thereof with two lugs. Each of the two lugs is provided with a fitting hole. The handlebar upright tube is provided at one end thereof with a fastening tube for fastening the bicycle handlebar and at another end thereof with a pivoting portion provided with a fitting hole. The adjusting device comprises a braking member and a shaft. The braking member is disposed in the fitting hole of the pivoting portion and is provided with an axial hole dimensioned to receive therein the shaft. The handlebar upright tube and the head tube are joined together adjustably such that the shaft of the adjusting member is received in the fitting holes of the two lugs of the head tube and in the axial hole of the braking member of the adjusting device.

REFERENCES:
patent: 2484551 (1949-10-01), Brouse
patent: 4939950 (1990-07-01), Girvin

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