Power transmission apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTakahiro Yoshimura
Life of this patent
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Abstract
A power transmission apparatus comprises an input shaft, an output shaft, a clutch device, and an actuator. The clutch device comprises a clutch hub, a clutch housing, a clutch pack, an input side cam mechanism for pressing the clutch pack toward the output shaft, an output side cam mechanism for pressing the clutch pack toward the input shaft, a return spring for urging the clutch pack to have its elements moved away from each other, and a drive shaft having an input side gear for transmitting the driving force of the actuator to the input side cam mechanism, and an output side gear for transmitting the driving force of the actuator to the output side cam mechanism.
Claims7
A power transmission apparatus comprising:
- an input shaft inputted with power,
- an output shaft to output the power,
- a clutch device operative to be changed to selectively take a disconnected state in which the power is disconnected between the input shaft and the output shaft or a connected state in which the power is connected between the input shaft and the output shaft, and
- an actuator to drive the clutch device,
- the clutch device comprising:
- an input side rotation element integrally rotated with the input shaft,
- an output side rotation element integrally rotated with the output shaft,
- an engagement element pack constituted by a plurality of input side friction engagement elements integrally rotated with the input side rotation element and a plurality of output side friction engagement elements integrally rotated with the output side rotation element,
- an input side cam mechanism that presses the engagement element pack toward the output shaft,
- an output side cam mechanism that presses the engagement element pack toward the input shaft from an opposite side to the input side cam mechanism,
- an urging element that urges the engagement element pack to have the input side friction engagement elements and the output side friction engagement elements axially moved away from each other, and
- a drive shaft including an input side transmission element that transmits a driving force outputted from the actuator to the input side cam mechanism, and an output side transmission element that transmits the driving force to the output side cam mechanism, the input side cam mechanism and the output side cam mechanism being driven by a rotation of the drive shaft.
Dependencies are inferred from the claim text.