Motor unit for an assisting apparatus for changing speeds in...

Details Motor unit for an assisting apparatus for changing speeds in... Motor unit for an assisting apparatus for changing speeds in...

2005-05-31

2005-05-31

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Condition responsive

C474S080000, C474S078000

Reexamination Certificate

active

06899649

ABSTRACT:
A control apparatus is provided for a bicycle shift control device that uses power from a rotating member to assist the operation of a bicycle transmission, wherein the shift control device includes an input transmission member that requests assistance of the rotating member and an output transmission member that is assisted by the rotating member. The control apparatus comprises an input transmission member drive member that moves at least to a neutral position, to an upshift position and to a downshift position; an input drive member position sensor operatively coupled to the input transmission member drive member; and a motor operatively coupled to the input transmission member drive member. A control unit is operatively coupled to the input drive member position sensor and to the motor to move the input transmission member drive member to at least one of the neutral position, the upshift position and the downshift position.

REFERENCES:
patent: 4143557 (1979-03-01), Wakebe et al.
patent: 4605240 (1986-08-01), Clem et al.
patent: 5213548 (1993-05-01), Colbert et al.
patent: 5261858 (1993-11-01), Browning
patent: 5356349 (1994-10-01), Browning
patent: 5358451 (1994-10-01), Lacombe et al.
patent: 5470277 (1995-11-01), Romano
patent: 5618241 (1997-04-01), Ose
patent: 6607457 (2003-08-01), Kawakami
patent: 10-324289 (1998-12-01), None

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