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US 3,943,798 AGranted
Power transmitting mechanism
AssigneeAisin Seiki Kabushiki Kaisha
InventorKenichi Sato
Life of this patent
Estimating the term…
Abstract
A power transmitting mechanism for a vehicle includes planetary gear means adapted so as to receive an output torque of a transmission and having power trains of different speed ratios, a differential gear means for distributing the output torque from the planetary gear means to the wheel drive shafts, a chain interposed between both gear means so as to thereby establish a mechanical connection therebetween, and a sprocket wheel disposed upon a ring gear of the planetary gear means and engaged with the chain.
Claims5
A power transmitting mechanism for a vehicle comprising:
- planetary gear means, disposed within a stationary casing of said vehicle and including fixed engaging means thereon, including a sun gear disposed upon an output shaft of a transmission so as to thereby receive a torque output from said transmission, first planetary pinion gears meshed with said sun gear, second planetary pinion gears meshed with said first planetary pinion gears, carriers which are adapted so as to support said first and second planetary pinion gears and a ring gear meshed with said second planetary pinion gears;
- change-over means associated with said planetary gear means and said fixed means of said stationary casing for selectively controlling said planetary gear means so as to produce different torque outputs as required, whereby when said change-over means is engaged with said planetary gear means free from said fixed stationary casing means, said ring gear is rotatable in unison with said output shaft to directly transmit the torque from said output shaft to said ring gear, and when said change-over means is engaged with said fixed stationary casing means, said carriers are fixed relative to said output shaft so as to transmit the torque from said sun gear to said ring gear with a different ratio,
- a differential gear means opeatively associated with said planetary gear means for distributing the torque output from said planetary gear means to the vehicle wheel drive shafts and including a carrier and a ring gear secured thereto;
- a chain interposed between said planetary gear means and said differential gear means;
- a sprocket wheel provided upon said ring gear to said planetary gear means and engaged with said chain;
- a second sprocket wheel provided upon said ring gear of said differential gear means also being engaged with said chain;
- and
- said ring gear of said differential gear means and said ring gear of said planetary gear means being positioned on respectively parallel axes in a substantially common place plane whereby the torque output from said planetary gear means is transmitted to said differential gear means through said chain.
5 more elements
Dependencies are inferred from the claim text.