Shaft drive device
AssigneeHonda Motor Co., Ltd.
InventorShinji Ito
Life of this patent
Estimating the term…
Abstract
A shaft of a pinion gear is engaged with a ring gear extends toward the front side in a final gear case that is provided in a power transmission system between a power unit and a wheel. Splines are provided on each of an outer circumference of the shaft, and on an inner circumference of a cylindrical portion of a pinion joint that forms a receiving portion of a joint provided at the rear end of a drive shaft for transmitting power from the power unit to the pinion gear. The two splines are engaged with each other. The pinion joint is fixed to the pinion gear by a bolt that is threadedly engaged with a threaded portion formed at the lower portion of a hole in the pinion gear shaft. A flexible portion of the bolt is formed between a head portion and the threaded portion of the bolt.
Claims20
A shaft drive device where a shaft of a pinion gear engaged with a ring gear extends toward a power unit in a final gear case that is provided in a power transmission system between the power unit and a wheel, the shaft device comprising:
- a first spline provided on an outer circumference of the shaft;
- a second spline is provided on an inner circumference of a cylindrical portion of a pinion joint that forms a receiving portion of a joint provided at a rear end of a drive shaft for transmitting power from the power unit to the pinion gear, the second spline of the pinion joint and the first spline of the pinion gear being engaged with each other so that the pinion gear is spline-connected to the pinion joint;
- a hole formed at the shaft of the pinion gear in an axial direction thereof;
- a threaded portion formed at a lower portion of the hole,
- wherein the pinion joint is fixed to the pinion gear by a bolt that is threadedly engaged with the threaded portion of the hole, and
- wherein a flexible portion is formed between a head portion of the bolt and a threaded portion of the bolt.
A shaft drive device where a shaft of a pinion gear engaged with a Ting gear extends toward a power unit in a final gear case that is provided in a power transmission system between the power unit and a wheel, the shaft device comprising:
- a first spline provided on an outer circumference of the shaft;
- a second spline is provided on an inner circumference of a cylindrical portion of a pinion joint that forms a receiving portion of a joint provided at a rear end of a drive shaft for transmitting power from the power unit to the pinion gear, the second spline of the pinion joint and the first spline of the pinion gear being engaged with each other so that the pinion gear is spline-connected to the pinion joint;
- a hole formed at the shaft of the pinion gear in an axial direction thereof;
- a threaded portion formed at a lower portion of the hole,
- wherein the pinion joint is fixed to the pinion gear by a bolt that is threadedly engaged with the threaded portion of the hole, and
- wherein a flexible portion is formed between a head portion of the bolt and a threaded portion of the bolt, and
- wherein a bearing for supporting the pinion gear surrounds at least a portion of the flexible portion of the bolt.
Dependencies are inferred from the claim text.