Torque transmission device
First Claim
Patent Images
1. A torque transmission device comprising:
- a pair of side gears arranged facing each other on the same axis and respectively coupled as a torque output member to a wheel on one side and a wheel on the other side of a vehicle;
a supporting member rotating around the axis of the pair of the side gears as a torque input member inputting torque from an engine; and
a pinion gear rotatably supported by the supporting member and engaged with the pair of the side gears in a straddling manner,the pair of the side gears being configured as cylindrical gears having teeth disposed on either an outer circumferential surface or an inner circumferential surface, the side gears having the numbers of teeth different from each other,the pinion gear being a cylindrical gear having teeth disposed on an outer circumferential surface, the teeth engaging with the pair of the side gears, the pinion gear being attached integrally to a support shaft,the support shaft of the pinion gear being attached to the supporting member via a bearing,the pinion gear being disposed with an axial direction of the pinion gear and its support shaft directed in the same direction as the axial direction of the pair of the side gears,the support shaft of the pinion gear being associated with a motor applying rotation around the axis of the support shaft corresponding to a running state of the vehicle.
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Accused Products
Abstract
The torque transmission device includes side gears having a same axis of rotation coupled to rear wheels, a case disposed around the outer circumferential side of the side gears, and rotating around the axis of the side gears, and a pinion gear rotatably supported by the case and engaged with the side gears in a straddling manner. The side gears are spur gears having a different number of teeth, and the pinion gear is a spur gear driven by a motor and having an axis of rotation that is parallel to the axis of rotation of the side gears. Forming the side gears and pinion gear from spur gears advantageously allows the side gears to be compactly arranged along their axis of rotation.
4 Citations
8 Claims
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1. A torque transmission device comprising:
- a pair of side gears arranged facing each other on the same axis and respectively coupled as a torque output member to a wheel on one side and a wheel on the other side of a vehicle;
a supporting member rotating around the axis of the pair of the side gears as a torque input member inputting torque from an engine; and
a pinion gear rotatably supported by the supporting member and engaged with the pair of the side gears in a straddling manner,the pair of the side gears being configured as cylindrical gears having teeth disposed on either an outer circumferential surface or an inner circumferential surface, the side gears having the numbers of teeth different from each other, the pinion gear being a cylindrical gear having teeth disposed on an outer circumferential surface, the teeth engaging with the pair of the side gears, the pinion gear being attached integrally to a support shaft, the support shaft of the pinion gear being attached to the supporting member via a bearing, the pinion gear being disposed with an axial direction of the pinion gear and its support shaft directed in the same direction as the axial direction of the pair of the side gears, the support shaft of the pinion gear being associated with a motor applying rotation around the axis of the support shaft corresponding to a running state of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a pair of side gears arranged facing each other on the same axis and respectively coupled as a torque output member to a wheel on one side and a wheel on the other side of a vehicle;
Specification