Abstract:
A failsafe actuator is provided for returning an actuator driven element to a failsafe position in case of a failure condition. The actuator (102) includes a drive assembly (303) for driving a plunger (318) from a first plunger position to a second plunger position. The actuator additionally includes a stored energy element (509) for driving the plunger from the second plunger position to the first plunger position on the occurrence of the failure condition, wherein the actuator driven element is responsive to the plunger such that the actuator drive element is driven to the failsafe position when the plunger is driven to the first position.
Abstract:
An actuator including a plurality of mounts (42-50) for facilitating connection of the actuator to a variety of mounting bracket configurations for securing the actuator within an assembly. Also provided is a clutch assembly (26) including an input member (90), an output member (80),and pawls (104). Torque is transferred through the clutch when applied to the input member in a clockwise or counter-clockwise direction. When torque is applied to the output member, the clutch permits rotation in only one direction of rotation.
Abstract:
An actuator 102 and vehicle system (100, Figure 1) comprising a motor 204 coupled to a gear train 206. The gear train 206 having a drive gear 208 which has a first gear portion (234, Figure 4) and an integral drive nut portion (236, Figure 4). A drive screw 210 extends through the drive nut portion (236) and is moved linearly relative to drive gear 208 between two positions by action of the motor. The drive screw is coupled to a plunger 108 via at least one spring 806. Preferably an anti rotation feature (212, Figure 6) is attached to the drive screw 210, the anti rotation feature (212) extending into a slot in a housing 222 (Figure 7). A magnet (606, Figure 3) may be attached to the drive screw 210 and may interact with Hall Effect sensors (608, 610, Figure 3).
Abstract:
A failsafe actuator is provided for returning an actuator driven element to a failsafe position in case of a failure condition. The actuator (102) include s a drive assembly (303) for driving a plunger (318) from a first plunger position to a second plunger position. The actuator additionally includes a stored energy element (509) for driving the plunger from the second plunger position to the first plunger position on the occurrence of the failure condition, wherein the actuator driven element is responsive to the plunger such that the actuator drive element is driven to the failsafe position when the plunger is driven to the first position.
Abstract:
An actuator including a plurality of mounts for facilitating connection of the actuator to a variety of mounting bracket configurations for securing the actuator within an assembly. Also provided is a clutch assembly including an input member, an output member and pawls. Torque is transferred through the clutch when applied to the input member in a clockwise or counter-clockwise direction. When torque is applied to the output member, the clutch permits rotation in only one direction of rotation.
Abstract:
An electro-mechanical actuator is provided resisting back driving of a gear train in at least one direction. The actuator includes an internal gear train (101). A clutch (111) is coupled to an output of the gear train and transmits a driving force from the gear train to a clutch output. When a back driving force is applied to the clutch output in at least one direction, the clutch assumes a locked configuration. When the clutch is in a locked configuration the clutch resists rotational movement of the output and back driving of the gear train.
Abstract:
A steering shaft lock actuator may include a motor having an output shaft, a drive train, and a lost motion device. The drive train may be coupled to the output shaft and may linearly urge a locking member to an unlocked position when the motor is energized. The lost motion device may be configured to store energy when the locking member is in the unlocked position and utilize the stored energy to drive the locking member toward a locked position with a steering shaft when the motor is de-energized.
Abstract:
An actuator and door latch system incorporating the same. The actuator moves a door latch between locked and unlocked positions with rapidity using a gear train directly coupled to an actuator motor or energy stored in an energy storage element such as a spring.