Adjustable bicycle stem

Details Adjustable bicycle stem Adjustable bicycle stem

1992-11-23

1994-07-12

Luong, Vinh T.

Machine element or mechanism

Control lever and linkage systems

Elements

745514, 745511, 292137, B62K 2116

Patent

active

053277988

ABSTRACT:
An adjustable bicycle stem includes a downwardly projecting member adapted for insertion into a conventional receptacle in the frame of the bicycle and an adjustable forwardly projecting member adapted to hold the bicycle handlebar. The downwardly and forwardly projecting members of the bicycle stem are coupled for rotational adjustment of the forwardly projecting member with respect to the downwardly projecting member by providing a toothed adjustment plate and engaging pin arrangement by which the rider may incrementally raise or lower the handlebar, even while riding.

REFERENCES:
patent: 586307 (1897-07-01), Dickson
patent: 604187 (1898-05-01), Castle
patent: 610469 (1898-09-01), Blashfield
patent: 645884 (1900-03-01), Blashfield
patent: 2807488 (1957-09-01), Schlage
patent: 2813737 (1957-11-01), Reiter
patent: 3322451 (1967-05-01), Bredemus
patent: 4023436 (1977-05-01), Dodge
patent: 4896559 (1990-01-01), Marier et al.
patent: 5138900 (1992-08-01), Hals

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