摘要:
A clutch includes a stopper secured to a gear housing of a motor. Once the stopper is secured to the gear housing, the stopper restrains axial movement of rolling elements by restraining axial movement of a support member, which rotatably supports the rolling elements, to retain the rolling elements within a collar. A driven-side rotator of the clutch includes reinforcing ribs for reinforcing engaging projections of the driven-side rotator.
摘要:
A yoke housing that receives an armature has a plurality of permanent magnets (primary magnetic poles) secured to an inner peripheral surface of the yoke housing. Furthermore, the yoke housing includes a plurality of groove-like reduced thickness portions for increasing a magnetic resistance. Each reduced thickness portion extends along a center line of a corresponding one of the permanent magnets.
摘要:
In a motor device for vehicles, a brush holder is interposed between a motor yoke housing and a reduction gear unit housing has a holder body and a connector unit integrally formed with each other. The connector unit holds therein connector terminals having base ends connected to brushes. A sealing cover is molded integrally on the holder body and the base ends of the connector terminals. The sealing cover seals insides of the yoke housing and the gear housing water-tightly from the outside. The sealing cover is preferably made of rubber, elastomer or adhesive resin, and formed with the brush holder by two-color molding. The sealing cover has a cylindrical cover part extending from the connector unit, and the motor device is mounted in a vehicle door with the cylindrical cover part being attached to the vehicle door for electrical connection with an external power source.
摘要:
A rotational sensor of a motor includes a sensor magnet and a sensing element. The sensor magnet is secured to a driving-side rotator of a clutch, which is connected to a rotatable shaft of the motor, to rotate integrally therewith. The sensing element measures a rotational speed of the sensor magnet. Furthermore, the sensing element is secured to a motor case in such a manner that the sensing element opposes the sensor magnet.
摘要:
In a geared motor, a cover plate is fitted to an opening of a housing of a geared motor. The cover plate includes an output shaft hole, a rib and a short cylindrical portion. The output shaft hole penetrates through a center of the cover plate and rotatably receives an output shaft therethrough. The rib is formed along an outer peripheral edge of the cover plate and is radially supported by the housing. The short cylindrical portion is slidably engageable with an outer peripheral surface of the output shaft for radially supporting the output shaft. An inner peripheral surface of a worm wheel is slidably engageable in line contact with a sliding ridge of a disk plate of the output shaft.
摘要:
In a clutch, when a driving-side rotator is rotated, the driving-side rotator engages a driven-side rotator in a rotational direction and transmits a rotational force of the driving-side rotator to the driven-side rotator. When the driven-side rotator is rotated by an external force, a rolling element is clamped between the driven-side rotator and an inner circumferential surface of a housing. At the same time the driven-side rotator is allowed to rotate while generating a desired frictional force between the rolling element and the inner circumferential surface of the housing, so that the rotation of the driven-side rotator is not transmitted to the driving-side rotator.
摘要:
There is provided a mobile member position detection apparatus in which not only high-accuracy detection of a position of a window glass or the like of a power window apparatus but also setting of an initial position being free from cumbersome adjustment can be realized with a simple structure at low cost. In this position detection apparatus, a transmission plate and a cam plate are rotated together with the rotating shaft of a window regulator, and a limit switch is rendered conductive to detect a predetermined rotational position. Thereafter, when the rotating shaft is rotated, the intermeshing state between a tooth portion and a tooth portion obtained by a wave washer is released, and rotation of the rotating shaft is not transmitted to the cam plate. Therefore, when the rotating shaft (drive motor) is sufficiently rotated during an incorporating operation, an initial state wherein a projecting portion is brought into contact with a stopper to render the limit switch conductive is automatically set.
摘要:
There is provided a mobile member position detection apparatus in which not only high-accuracy detection of a window glass or the like of a power window apparatus but also setting of an initial position being free from cumbersome adjustment can be realized with a simple structure at low cost. In a position detection apparatus, a ring gear is rotated together with a motor output shaft, and a predetermined rotational position is detected by a mobile contact and a fixed contact. In this case, since a projecting portion of a gear base is brought into contact with a contact surface of a base plate to hold the gear base, a difference between loss torque of the gear base and loss torque of the ring gear increases, and a planetary gear is not unnecessarily revolved. Thereafter, when the output shaft is rotated, holding of the carrier by a wave washer is released, and rotation of the output shaft is not transmitted to the ring gear. Therefore, when the output shaft is sufficiently rotated in an incorporating operation, an initial state can be automatically set.
摘要:
In a position detector, a ring gear rotates with a motor output shaft and a specified rotation position is detected by a move contact and fixed contacts. When the output shaft rotates thereafter, holding a carrier by a wave washer is released and the transmission of rotation of the output shaft to the ring gear is dropped. Therefore, by rotating the output shaft sufficiently at the time of assembling, an initial state, in which a protrusion section abuts a protrusion and the move contact contacts the fixed contact, is set automatically.
摘要:
A closure device for opening and closing an opening by moving a closure member substantially vertically has a motor for driving the closure member. The motor is secured to a lower portion of the closure member and within substantially the same plane as the plane of movement of the closure member. Accordingly, it is possible to prevent an eccentric load from being applied to the closure member.