Abstract:
An apparatus for winding a spring on a shaft, such as for counterbalancing a roll-up door, includes a housing that carries a transmission which is positionable over the shaft. The transmission is configured to be coupled via a connector to one end of the spring, while the other end of the spring is fixed to the shaft. Rotation of the transmission results in a turning of the connector and a winding and/or elongation of the spring.
Abstract:
A door operator unit includes a drive motor connected to a speed reduction differential planetary gear drive mechanism having a drive unit output shaft. An electromagnetic brake is interposed the motor output shaft and the planetary gear drive mechanism and is releasable when energized to allow rotation of the motor output shaft and the drive unit output shaft. A first ring gear is normally held stationary by mechanism including a release block and is operable in response to disengagement of the release block to permit rotation of the drive unit output shaft when the brake is engaged to allow manual opening and closing of the door by way of an auxiliary drive shaft drivingly connected to the ring gear. A torque limiting clutch may be interposed the operator unit output shaft and a second ring gear of the differential planetary gear drive mechanism.
Abstract:
A rotary damper uses a motor to selectively dynamically brake the rotational movement between a housing and a cover of a wireless communications device. A clutch that is moveable between an engaged position and a disengaged position connects the motor to the cover so that the relative rotational movement between the housing and the cover in at least one rotational direction is resisted by the motor when the clutch is in an engaged position. The clutch preferably includes a coupler axially moveable between a deployed position directly engaging the flip cover and a retracted position disengaged from the cover, and an actuator moveable between a first position and a second position so as to cause the coupler to assume the deployed position and the retracted position, respectively. The actuator preferably includes a spring to bias the coupler towards the deployed position. A shaft preferably extends through the motor and connects the actuator to the coupler. The coupler may rotate at a slower speed relative to the shaft or may rotate at the same speed. The rotary damper may also include an eccentric weight attached to the shaft so as to spin therewith. When the clutch is in the disengaged position, the motor may intermittently spin the shaft causing the eccentric weight to spin, thereby imparting a shaking motion to the overall phone.
Abstract:
A power operating system for opening and closing a vehicle liftgate has a pair of drive units supported on the vehicle roof and connected to the liftgate for opening and closing the liftgate. Each drive unit includes a planetary gear set that has a sun gear, at least one planet gear and a partial ring gear. The sun gear which is located on the pivot axis is driven by a reversible electric motor. The planet gears are rotatably mounted on a carrier that is attached to the hinge portion that moves with the lift gate and the partial ring gear is attached to the hinge portion that is fixed on the vehicle body.
Abstract:
A drive apparatus, in particular for the automatic actuation of a sliding door of a motor vehicle, comprising a fast running motor, the motor shaft of which is connected to a transmission with a large step-down ratio, the transmission having a first gear wheel which can be secured against rotation, via a releasable blocking device, and a second rotatable gear wheel which is rotationally fixedly connected to an output drive shaft and which is rotatable relative to the first gear wheel by the rotation of the motor when the first gear wheel is blocked, with the number of teeth of the first gear wheel only differing by a few teeth from the number of teeth of the second gear wheel and with the large step-down ratio being determined by this difference of the tooth numbers. By releasing the blocking device, the step-down ratio of the transmission changes. In particular a step-down ratio of 1:1 results. The transmission is thereby capable of being driven in reverse, so that a manual actuation of the sliding door of a motor vehicle is possible, without the requirement for a releasable clutch device between the sliding door and the drive apparatus.
Abstract:
For a position detector of a motor actuator, two types of flanges are provided. Each flange has a movable contact, on which fixed sliding contacts slide to detect a predetermined rotational position of a motor when the flange is driven by the motor. Either one of the flanges is used in the position detector depending on the combination of motor rotation directions (forward/reverse) and doors (left/right). Thus, a single cover plate which accommodates the flange may be used for both doors irrespective of the motor rotation direction.
Abstract:
An actuator assembly for a powered sliding door system for an automotive vehicle. The actuator assembly includes a housing having a cavity and a first cable reel and a second cable reel disposed in the cavity. The first cable reel is operatively connected to one end of a cable and the second cable reel is operatively connected to another end of the cable. The actuator assembly includes a transmission assembly being disposed in the cavity and operatively connected to either the first cable reel or the second cable reel. The actuator assembly includes a motor operatively connected to the transmission assembly for rotating the first cable reel and the second cable reel. The actuator assembly further includes a motor bracket operatively connected to the transmission assembly and enclosing the motor. The motor bracket is adjustable relative to the housing to form either a right-hand assembly, left-hand assembly or intermediate assembly for a right-hand and left-hand sliding door for a powered sliding door system.
Abstract:
A window lift system generally comprises a motor driving a threaded shaft threadably engaging a nut slidably mounted in a bracket. A link has a first end rotatably mounted to the nut and a second end rotatably mounted to an end of a pivotally mounted arm. An opposite end of the arm engaging the window glass raises and lowers the window glass as the arm pivots.
Abstract:
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.
Abstract:
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.