Gear mechanism and geared motor
AssigneeNidec Sankyo Corporation
InventorMamoru Yamaoka
Life of this patent
Estimating the term…
Abstract
A gear mechanism may include a first gear, a second gear engaged with the first gear, and a stopper part formed in the second gear. The stopper part may be engaged with the first gear to prevent turning of the first gear. The stopper part is a part where a tooth is not formed in an outer peripheral part of the second gear. The stopper part includes a protruded part protruded to an outer side in a radial direction with respect to a tooth tip circle of a tooth part of the second gear, and a recessed part recessed to an inner side in the radial direction with respect to the protruded part and adjacent to the protruded part in a circumferential direction and, when turning of the first gear is stopped, a tip end side of the tooth part of the first gear is abutted with the recessed part.
Claims15
A gear mechanism comprising:
- a first gear;
- a second gear which is engaged with the first gear;
- and
- a stopper part which is formed in the second gear, the stopper part being capable of being engaged with a tooth part of the first gear to prevent turning of the first gear;
- wherein the stopper part is a teeth non-formation part where a tooth part is not formed in an outer peripheral part of the second gear;
- and
- wherein the stopper part comprises:
- a protruded part which is protruded to an outer side in a radial direction with respect to a tooth tip circle of a tooth part of the second gear;
- and
- a recessed part which is recessed to an inner side in the radial direction with respect to the protruded part at a position adjacent to the protruded part in a circumferential direction and, when turning of the first gear is stopped, a tip end side of the tooth part of the first gear is abutted with the recessed part.
A geared motor comprising a gear mechanism through which rotation of a motor is decelerated and transmitted,
- wherein the gear mechanism comprises:
- a first gear;
- a second gear which is engaged with the first gear;
- and
- a stopper part which is formed in the second gear, the stopper part being capable of being engaged with a tooth part of the first gear to prevent turning of the first gear;
- wherein the stopper part is a teeth non-formation part where a tooth part is not formed in an outer peripheral part of the second gear;
- and
- wherein the stopper part comprises:
- a protruded part which is protruded to an outer side in a radial direction with respect to a tooth tip circle of a tooth part of the second gear;
- and
- a recessed part which is recessed to an inner side in the radial direction with respect to the protruded part at a position adjacent to the protruded part in a circumferential direction and, when turning of the first gear is stopped, a tip end side of the tooth part of the first gear is abutted with the recessed part;
- and
- wherein the first gear is a motor pinion provided in a rotation shaft of the motor and the second gear is an input gear which is engaged with the motor pinion.
A gear mechanism comprising:
- a first gear;
- a second gear which is engaged with the first gear;
- and
- a stopper part which is formed in the second gear, the stopper part being capable of being engaged with a tooth part of the first gear to prevent turning of the first gear;
- wherein the stopper part comprises:
- a protruded part which is protruded to an outer side in a radial direction with respect to a tooth tip circle of a tooth part of the second gear;
- and
- a recessed part which is recessed to an inner side in the radial direction with respect to the protruded part at a position adjacent to the protruded part in a circumferential direction.
Dependencies are inferred from the claim text.