Variable transmission

Details Variable transmission Variable transmission

1993-09-24

1994-10-11

Schoeppel, Roger J.

Endless belt power transmission systems or components

Pulley with expansible rim means or pulleys with alternately...

Structure for variably adjusting radius of rim section

474 69, F16H 926

Patent

active

053542401

ABSTRACT:
A variable speed transmission system usable with the standard rear axle of most bicycles which utilizes a rotating chain sprocket engaging an endless chain for receiving an input torque and transmitting an output torque. A shifter device includes a stationary shifter ring, a moveable shifter plate, and an appropriate control mechanism for selectively displacing the shifter plate with respect to the shifter ring and sprocket. An appropriate apparatus means is utilized to selectively displace the longitudinal axis of the rear axle with respect to the axis of the shifter ring and axis of the sprocket to vary the torque transmission ratio. The drive apparatus can include a plurality of drive arms secured to and moveable with a clutch associated with the rear axle which are operably secured to the sprocket or a groove plate adjacent the sprocket and secured to the rear axle having a plurality of grooves operable with a drive ring affixed to the sprocket, and having a slider connecting the drive ring and groove plate.

REFERENCES:
patent: 1279271 (1918-12-01), Stockl
patent: 1626701 (1927-05-01), Sleeper
patent: 3383931 (1968-05-01), Patterson
patent: 3722305 (1973-03-01), Walters
patent: 3956944 (1976-05-01), Tompkins
patent: 4697469 (1987-10-01), Takamiya et al.
patent: 4712450 (1987-12-01), Takamiya et al.
patent: 4800768 (1989-01-01), Kazuta
patent: 4892506 (1990-01-01), Wen

Affiliated with

Also associated with

Rating

Variable transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1654839