Back to results
US 11,885,382 B2Granted
Power transmission apparatus
AssigneeKabushiki Kaisha F.C.C.
InventorsYoshihiko Ozawa, Han Hiong Chen, Katsu Yoshimoto
Life of this patent
Estimating the term…
Abstract
During movement of a mass of a centrifugal clutch a radially inner position to a radially outer position and a resulting increase in torque transmitted from an input gear to an output shaft, a power transmission apparatus includes a first torque region where the apparatus restricts operation of a pressing assist cam and a second torque region where the apparatus allows operation of the pressing assist cam.
Claims16
A power transmission apparatus comprising:
- a clutch housed in a clutch housing that rotates together with an input that rotates due to a driving force of an engine of a vehicle, the clutch housing including a plurality of driving clutch plates attached thereto, the clutch having a plurality of driven clutch plates attached thereto, the driven clutch plates being alternately arranged with the driving clutch plates, the clutch being connected to an output that is able to rotate a wheel of the vehicle;
- a pressure applicator movable between an operating position where the driving and driven clutch plates are pressed against each other so as to enable transmission of the driving force of the engine to the wheel and a non-operating position where a pressing force exerted on the driving and driven clutch plates is released so as to cut off transmission of the driving force of the engine to the wheel;
- a centrifugal clutch including a mass movable from a radially inner position to a radially outer position due to centrifugal force produced by rotation of the clutch housing, the centrifugal clutch being configured to, when the mass is located at the radially outer position, press the driving and driven clutch plates against each other so as to enable transmission of the driving force of the engine to the wheel and configured to, when the mass is located at the radially inner position, release the pressing force exerted on the driving and driven clutch plates so as to cut off transmission of the driving force of the engine to the wheel;
- and
- a clutch spring urging the pressure applicator in a direction in which the driving and driven clutch plates are to be pressed against each other, wherein
- at least a portion of the centrifugal clutch overlaps with a portion of the clutch located radially outward of the clutch spring as viewed in a radial direction of the output.
3 more elements
A power transmission apparatus comprising:
- a clutch housed in a clutch housing that rotates together with an input that rotates due to a driving force of an engine of a vehicle, the clutch housing including a plurality of driving clutch plates attached thereto, the clutch having a plurality of driven clutch plates attached thereto, the driven clutch plates being alternately arranged with the driving clutch plates, the clutch being connected to an output that is able to rotate a wheel of the vehicle;
- a pressure applicator movable between an operating position where the driving and driven clutch plates are pressed against each other so as to enable transmission of the driving force of the engine to the wheel and a non-operating position where a pressing force exerted on the driving and driven clutch plates is released so as to cut off transmission of the driving force of the engine to the wheel;
- and
- a centrifugal clutch including a mass movable from a radially inner position to a radially outer position due to centrifugal force produced by rotation of the clutch housing, the centrifugal clutch being configured to, when the mass is located at the radially outer position, press the driving and driven clutch plates against each other so as to enable transmission of the driving force of the engine to the wheel and configured to, when the mass is located at the radially inner position, release the pressing force exerted on the driving and driven clutch plates so as to cut off transmission of the driving force of the engine to the wheel;
- wherein
- the clutch includes
- a boss extending in an axial direction of the output and holding the output, and
- an outer peripheral wall positioned radially outside the boss and extending in an axial direction of the output, and
- at least a portion of the centrifugal clutch overlaps with the outer peripheral wall as viewed in a radial direction of the output.
6 more elements
A power transmission apparatus comprising:
- a clutch housed in a clutch housing that rotates together with an input that rotates due to a driving force of an engine of a vehicle, the clutch housing including a plurality of driving clutch plates attached thereto, the clutch having a plurality of driven clutch plates attached thereto, the driven clutch plates being alternately arranged with the driving clutch plates, the clutch being connected to an output that is able to rotate a wheel of the vehicle;
- a pressure applicator movable between an operating position where the driving and driven clutch plates are pressed against each other so as to enable transmission of the driving force of the engine to the wheel and a non-operating position where a pressing force exerted on the driving and driven clutch plates is released so as to cut off transmission of the driving force of the engine to the wheel;
- a centrifugal clutch including a mass movable from a radially inner position to a radially outer position due to centrifugal force produced by rotation of the clutch housing, the centrifugal clutch being configured to, when the mass is located at the radially outer position, press the driving and driven clutch plates against each other so as to enable transmission of the driving force of the engine to the wheel and configured to, when the mass is located at the radially inner position, release the pressing force exerted on the driving and driven clutch plates so as to cut off transmission of the driving force of the engine to the wheel;
- and
- an auxiliary clutch plate secured to the output, wherein
- at least a portion of the centrifugal clutch overlaps with the auxiliary clutch plate as viewed in a radial direction of the output.
3 more elements
Dependencies are inferred from the claim text.