Motor car
AssigneeSanyo Electric Co., Ltd.
InventorsMasakatsu Fujiwara, Yasuo Hirose, Yukifumi Yamaguchi
Life of this patent
Estimating the term…
Abstract
A motor-assisted bicycle powered by both a motor and man power with a transmission reduction mechanism for transmitting the rotation of a motor as well as for reducing speed. The motor-assisted bicycle also has a driving wheel capable of being driven by a driving force delivered from the transmission reduction mechanism and a clutch for transmitting a one-way driving force. The clutch is provided within the transmission reduction mechanism, thereby making the entire driving portion of the motor-assisted bicycle more compact.
Claims12
A motor-assisted bicycle comprising:
- a transmission reduction mechanism operative to transmit rotation of a motor and to reduce speed;
- a driving wheel driven by a driving force from the transmission reduction mechanism;
- and
- a clutch operative to transmit a one-way driving force, the clutch being provided as part of the transmission reduction mechanism,
- wherein the transmission reduction mechanism comprises an epicyclic roller reduction mechanism having a plurality of rollers, wherein at least one of the rollers has a different outer diameter than the other rollers and a center of at least one of the rollers is not supported with a shaft.
A motor-assisted bicycle comprising:
- a transmission reduction mechanism comprising
- a roller coupled to a rotary shaft,
- an output mechanism having an output shaft coupled to a rotary cylinder coupled to said roller, wherein the output shaft is eccentric with the rotary shaft, and
- a fixing member for fixing a position of the output mechanism.
A vehicle comprising:
- a motor capable of driving said vehicle;
- a man power portion capable of transmitting man power delivered by a person to drive said vehicle;
- a clutch operative to switch a driving source of said vehicle from said motor to said man power portion and from said man power portion to said motor, and
- an epicyclic roller device having a plurality of rollers supported by respective shafts and at least one roller not supported by a respective shaft and wherein all of said rollers are in contact with a rotary shaft of said motor when said driving source is said motor and wherein the roller not supported by said respective shaft is not in contact with said rotary shaft when said driving source is said man power portion.
Dependencies are inferred from the claim text.