Attachment structure for output sprocket wheel
AssigneeHonda Motor Co., Ltd.
InventorsTakuya Yamasaki, Shinya Matsumoto
Life of this patent
Estimating the term…
Abstract
An output sprocket wheel attachment structure includes a coned disk spring fitted with an output power shaft is abutted with and positioned by a stepped portion. An output sprocket wheel spline-fitted with spline grooves formed at an outer side portion of the output power shaft with respect to the stepped portion is pressed by the coned disk spring. A cap nut which engages with male threads formed at an end portion of the output power shaft is restricted and fixed at a bottom face thereof by and to an axial end of the output power shaft. Movement in an axial direction of the output sprocket wheel pressed by the coned disk spring is restricted by an opening end portion of the cap nut.
Claims14
An attachment structure for an output sprocket wheel for transmitting driving of an output power shaft of an internal combustion engine to a chain, comprising:
- a coned disk spring fitted with the output power shaft is abutted with and positioned by a stepped portion;
- the output sprocket wheel spline-fitted with spline grooves formed at an outer side portion of the output power shaft with respect to the stepped portion is pressed by said coned disk spring;
- a cap nut which engages with male threads formed at an end portion of the output power shaft is restricted and fixed at a bottom face thereof by and to an axial end of the output power shaft;
- and
- movement in an axial direction of the output sprocket wheel pressed by the coned disk spring is restricted by an opening end portion of the cap nut.
An attachment structure for an output sprocket wheel for transmitting driving of an output power shaft of an internal combustion engine to a chain, comprising:
- a coned disk spring fitted with the output power shaft is abutted with and positioned by a stepped portion;
- a torque detecting cylindrical member is spline-fitted with spline grooves formed at an axial outer side portion of the output power shaft with respect to said stepped portion;
- the output sprocket wheel extends, at an inner circumferential end of an inner circumferential base portion thereof which supports sprocket teeth, to the outer side in an axial direction to configure a cylindrical base portion;
- the cylindrical base portion of the output sprocket wheel covers an outer circumference of the torque detecting cylindrical member;
- an axial outer side end portion of the cylindrical base portion is fixed to an end portion of a torsion detecting cylindrical portion which extends to the outer side in the axial direction from a spline fitting portion of the torque detecting cylindrical member;
- an axial inner side end portion of the cylindrical base portion is pressed by the coned disk spring;
- a cap nut which engages with male threads formed at an end portion of the output power shaft is restricted and fixed at a bottom face thereof by and to an axial end of the output power shaft;
- and
- movement in the axial direction of the output sprocket wheel pressed by the coned disk spring is restricted by an opening end portion of the cap nut.
Dependencies are inferred from the claim text.