Back to results
US 9,010,207 B2Granted
Transmission
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorsYasuyuki Ukon, Keisuke Shibuya
Life of this patent
Estimating the term…
Abstract
A transmission includes an input shaft to receive the rotation of an engine, drive gears attached to the input shaft so as to freely rotate, an output shaft to output rotation following a gear shift, driven gears that are attached to the output shaft so as to freely rotate and mesh with the drive gears, an engagement mechanism to fix a gear to be used in a gear shift, from among the drive gears, to the input shaft to be incapable of relative rotation prior to a gear shift, and a selector mechanism to fix, during the gear shift, the driven gear of a corresponding gear position, which meshes with the drive gear fixed to the input shaft by the engagement mechanism, to the output shaft to be incapable of relative rotation.
Claims15
A transmission, comprising:
- an input shaft to receive a rotation of an engine;
- drive gears respectively attached to the input shaft so as to freely rotate individually;
- an output shaft disposed parallel to the input shaft in order to output rotation following a gear shift;
- driven gears respectively attached to the output shaft so as to freely rotate individually and mesh with the drive gears;
- an engagement mechanism to fix a drive gear to be used in a gear shift individually, from among the drive gears, to the input shaft to be incapable of a relative rotation;
- a selector mechanism to fix, during the gear shift, a driven gear of a corresponding gear position individually, which meshes with the drive gear fixed to the input shaft by the engagement mechanism, to the output shaft to be incapable of the relative rotation;
- a startup clutch interposed between the engine and the input shaft, wherein the input shaft is divided in the axial direction into a first input shaft on a side of the startup clutch and a second input shaft to which the drive gears are attached so as to freely rotate;
- and
- a damping mechanism that causes the first input shaft and the second input shaft to rotate integrally when a torque generated in one of the first input shaft and the second input shaft is less than a predetermined torque that is set to more than a maximum torque that is generated in the first input shaft and the second input shaft when the first input shaft is rotated by the engine and is set to less than a spike torque that is generated in the first input shaft and the second input shaft when gears shifts are performed.
6 more elements
A transmission, comprising:
- an input shaft to receive a rotation of an engine;
- drive gears respectively attached to the input shaft so as to freely rotate individually;
- an output shaft disposed parallel to the input shaft in order to output rotation following a gear shift;
- driven gears that are respectively attached to the output shaft so as to freely rotate individually and mesh with the drive gears;
- an engagement mechanism to fix a driven gear to be used in a gear shift individually, from among the driven gears, to the output shaft to be incapable of a relative rotation;
- a selector mechanism to fix, during the gear shift, a drive rear of a corresponding gear position individually, which meshes with the driven gear fixed to the output shaft by the engagement mechanism, to the input shaft to be incapable of the relative rotation;
- a startup clutch interposed between the engine and the input shaft, wherein the input shaft is divided in the axial direction into a first input shaft on a side of the startup clutch and a second input shaft to which the drive gears are attached so as to freely rotate;
- and
- a damping mechanism that causes the first input shaft and the second input shaft to rotate integrally when a torque generated in one of the first input shaft and the second input shaft is smaller than a predetermined torque and causes the first input shaft and the second input shaft to rotate relatively when the torque equals or exceeds the predetermined torque is interposed between the first input shaft and the second input shaft,
- wherein the predetermined torque is set to larger than a maximum torque that is generated in the first input shaft and the second input shaft when the first input shaft is rotated by the engine and is set to smaller than a spike torque that is generated in the first input shaft and the second input shaft when gears shifts are performed.
7 more elements
A transmission, comprising:
- an input shaft to receive a rotation of an engine;
- drive gears respectively attached to the input shaft so as to freely rotate individually;
- an output shaft disposed parallel to the input shaft in order to output rotation following a gear shift;
- driven gears respectively attached to the output shaft so as to freely rotate individually and mesh with the drive gears;
- an engagement mechanism to fix a drive gear to be used in a gear shift individually, from among the drive gears, to the input shaft to be incapable of a relative rotation;
- a selector mechanism to fix, during the gear shift, a driven gear of a corresponding gear position individually, which meshes with the drive gear fixed to the input shaft by the engagement mechanism, to the output shaft to be incapable of the relative rotation;
- a startup clutch interposed between the engine and the input shaft, wherein the input shaft is divided in the axial direction into a first input shaft on a side of the startup clutch and a second input shaft to which the drive gears are attached so as to freely rotate;
- and
- a damping mechanism that causes the first input shaft and the second input shaft to rotate integrally when a torque generated in one of the first input shaft and the second input shaft is smaller than a predetermined torque and causes the first input shaft and the second input shaft to rotate relatively when the torque equals or exceeds the predetermined torque is interposed between the first input shaft and the second input shaft,
- wherein the predetermined torque is set to larger than a maximum torque that is generated in the first input shaft and the second input shaft when the first input shaft is rotated by the engine and is set to smaller than a spike torque that is generated in the first input shaft and the second input shaft when gears shifts are performed.
7 more elements
Dependencies are inferred from the claim text.