Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Ratio shift initiated by reverse rotation of input shaft
Patent
1998-05-28
1999-09-21
Marmor, Charles A.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Ratio shift initiated by reverse rotation of input shaft
475297, 475324, 475 12, 748101, 280236, F16H 344, B62M 1114
Patent
active
059546140
ABSTRACT:
An apparatus for changing power direction for a bicycle is provided, which can travel the bicycle forward all the times, and simultaneously idle the bicycle, and transmit the driving force to a pedal shaft, thereby pulling back the bicycle without reverse-load. The power direction changing apparatus includes: a shaft housing having a first roll-pin holding portion in which a plurality of slots with a predetermined depth from the circumference are formed; a first changing ring having a first roll-pin race portion to which a plurality of roll-pins are attached to be exposed to the inner and outer directions, the first roll-pin race portion being connected to the first roll-pin holding portion of the shaft housing, capable of rolling against the first roll-pin holding portion, wherein the position of the first roll-pin race portion in the first roll-pin holding portion is changed by a changing lever controlled from the outside; a second changing ring having an inner circumference contacting the first roll-pin race portion of the first changing ring and an outer circumference along which a second roll-pin race portion to which a plurality of second roll-pins are exposed to the inner and outer directions is formed; a sun gear rotatably installed on the shaft housing, and integrally rotating together with the pedal shaft rotating by driving a pedal; a sprocket housing rotatably installed on the pedal shaft, having a ring gear and a race ring at its inner circumference, wherein the race ring contact the outer circumference of the second roll-pin race portion of the second changing ring; a carrier having one side along which a plurality of planetary gears to be engaged with the sun gear and the ring gear of the sprocket housing are formed and the other side along which a second roll-pin holding portion having a plurality of slots with a predetermined depth against the circumference is formed, wherein the carrier is rotatably installed to the inner circumference of the second roll-pin race portion of the second changing ring.
REFERENCES:
patent: 355672 (1887-01-01), Wuterich
patent: 399003 (1889-03-01), Bentley
patent: 479177 (1892-07-01), Vogel
patent: 678486 (1901-07-01), Head
patent: 692658 (1902-02-01), Head
patent: 743867 (1903-11-01), Head
patent: 1275505 (1918-08-01), Veyret
patent: 3915260 (1975-10-01), Kim
patent: 4667934 (1987-05-01), Ottemann
patent: 5141476 (1992-08-01), Chang
patent: 5368279 (1994-11-01), Ottemann et al.
patent: 5647817 (1997-07-01), Chang
(1) English Language Abstract of Korean Publication No. 97-42078.
Lund Scott
Marmor Charles A.
World Industry Co., Ltd.
LandOfFree
Apparatus for changing power direction for bicycle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for changing power direction for bicycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for changing power direction for bicycle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-74600