Chainless transmission mechanism for bicycles

Details Chainless transmission mechanism for bicycles Chainless transmission mechanism for bicycles

1994-12-12

1996-01-09

Hill, Mitchell J.

Land vehicles

Wheeled

Occupant propelled type

B62M 102

Patent

active

054823064

ABSTRACT:
A chainless transmission mechanism for a bicycle, including a right bottom bracket bearing axle holder and a left bottom bracket bearing axle holder bilaterally connected to the bottom bracket of a bicycle by connecting tubes and cone and locknuts to hold a bearing axle, a gear box coupled to one end of the freewheel hub of the bicycle, a transmission shaft having a bevel gear at one end engaged with a bevel gear in the bottom bracket bearing axle holder and a bevel gear at an opposite end engaged with a bevel gear on the freewheel hub, the bevel gear on the freewheel hub being mounted directly on the chain seat of the freewheel hub for gear clusters by a tightening up screw.

REFERENCES:
patent: 2181424 (1939-11-01), Glacy et al.
patent: 3861715 (1975-01-01), Mendoza
patent: 4943077 (1990-07-01), Lin et al.
patent: 5299819 (1994-04-01), Leu

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