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
1995-10-26
1997-07-15
Ta, Khoi Q.
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, 475326, 475324, F16H 344
Patent
active
056478178
ABSTRACT:
A two directional multi-speed shifting sear of middle axle is made of outer ring, bearings ring, starwheel, freewheel screw cup, freewheel plate, core teeth, inner and outer pawls, and chainwheel etc. The chainwheel is fixed on the outer ring through thread or thread hole. The starwheel is geared with inner teeth of the outer ring and the core teeth. The outer pawl is mounted on pawl hub, the later is fixed on the bottom bracket case of the cycle frame. The middle axle is passed through and fixed with the freewheel plate, the core teeth and the right crank, and then inserted into the bottom bracket case. With such a shifting gear, a pedal cycle may be given a unique function that when the cycle is moving forward, the changing of it's moving speed in the very moving direction may be in-situ realized by variating the shifting gear through pedalling to enable the crank to be rotating in either positive or inversive directions.
REFERENCES:
patent: 523246 (1894-07-01), Stebbins
patent: 1998376 (1935-04-01), Lundvist
patent: 2479654 (1949-08-01), Warburton
patent: 4583427 (1986-04-01), Blattman
patent: 4955627 (1990-09-01), Hartmann
patent: 5141476 (1992-08-01), Chang
"Cranial Exam", Ron Ige, Mountain Bike Magazine, p. 110 Sep. 1996.
Lam Steven Siuwai
Ta Khoi Q.
LandOfFree
Two directional multi-speed shifting gear of middle axle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Two directional multi-speed shifting gear of middle axle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two directional multi-speed shifting gear of middle axle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1488732