A hinge (1) for connecting a door to a household appliance compartment is described, comprising a fastening bracket (2) adapted to be fastened to the compartment of said household appliance, a movable support (3) to rotatably constrain said door to said fastening bracket (2), an activating arm (5) coupled to said fastening bracket (2), movement means (6) adapted to move said activating arm (5), said activating arm (5) comprising a first end portion (5a) adapted to be constrained to said door, and a second end portion (5b) fitted to be coupled to said movement means (6) to move said activating arm (5) between an open position (P2) of the door and a closed position (P1) of the door, said movement means (6) comprising an electric motor (10) and reversible connecting means (9) to couple and decouple selectively said electric motor (10) and said second end portion (5b), said hinge (1) being configured so that when said electric motor (10) is coupled to said second end portion (5b), the electric motor (10) causes the movement of the activating arm (5), whereas when said electric motor (10) is decoupled from said second end portion (5b), the movement of the first end portion (5a) occurs independently of the electric motor (10) to allow a user to freely move the door.

A lead screw device includes: a lead screw; and a motor that rotates the lead screw, wherein the motor includes: a hollow shaft fitted onto a part of an outer circumference of the lead screw; and a rotor core fitted onto a part of the outer circumference of the hollow shaft.

A landing gear system includes a wheel rotatably coupled to the axle about an axis. A motor is fixedly positioned relative to the axle with a clutch assembly operably coupled to an output shaft of the motor. The landing gear includes an actuator and a drive assembly. The actuator applies a braking force to the wheel. The drive assembly includes a pinion gear and a drive gear rotatably associated with the pinion gear. The drive gear is configured to transfer a rotational force to the wheel in order to provide autonomous taxiing capability. Both the brake assembly and the drive assembly are operably coupled to the clutch assembly so that the output shaft of the motor drives both the brake assembly and the drive assembly.

An elevation device includes a mounting frame, a rotary actuator fixed to the mounting frame, a shaft connected to the rotary actuator and rotatable with respect to the mounting frame, a drive bar slidably connected to the mounting frame, and a connecting member fixed to the shaft. The shaft defines a helical groove in a lateral surface thereof. The drive bar includes a post that is movably fit in the helical groove. The mounting frame, the shaft and the drive bar constitute a conversion mechanism that converts rotation of the shaft into linear motion of the drive bar. The drive bar is slidable with respect to the mounting frame along a direction that is parallel to an axis of rotation of the shaft.

Embodiments of an actuator assembly for a power tailgate system are disclosed. The actuator assembly includes an actuator having a housing, a guide with a first end extending from the housing and a second end opposite the first end, and a slide coupled to the guide so as to be movable with respect to the guide second end. The actuator assembly also includes a bellows having a first end attached to the guide first end, a second end opposite the first end and attached to an end of the slide, and a body extending between the first and second ends. At least one hole is formed in the bellows proximate the bellows second end and enables fluid communication between an interior of the bellows and an exterior of the bellows. The bellows may expel moisture collected therein during operation of the actuator.

Embodiments of an electric linear actuator may include a roller screw assembly, an electric motor coupled to the roller screw assembly, and a linear transducer operatively coupled with the roller screw assembly. The motor may be configured to drive the roller screw assembly to extend and retract another component, such as a rod. In some embodiments, the linear transducer may be configured to detect a position of the rod. The roller screw assembly may be coupled directly to the motor via a gear coupling, with the motor disposed generally in axial alignment with the roller screw assembly. Other embodiments disclosed herein include a veneer lathe carriage with electric linear actuators and corresponding apparatuses, methods, and systems.

An actuator is equipped with a body and a slider. Body side rail grooves are formed in side wall portions that constitute the body. On the other hand, slider side rail grooves are formed in the slider. Body side guide rails and slider side guide rails are provided in the body side rail grooves and the slider side rail grooves, respectively. Circular arc grooves serving as ball grooves are formed by body side ball receiving portions of the body side guide rails, and slider side ball receiving portions of the slider side guide rails.

An actuation mechanism for a rotary element, comprises an electric drive motor coupled to a threaded drive spindle. A threaded drive nut is received on said drive spindle for movement along said drive spindle. A rack gear is coupled to said drive nut. A pinion gear is drivingly engaged with said rack gear and drivingly couplable to the rotary element. The rotary element may be a valve element.

A linear motion guide device has a high rigidity, a good linear motion guiding accuracy, and as little rattling as possible. The linear motion guide device prevents sand, water or other contaminants from entering its actuator main body, and features low maintenance requirement. A linear motion member of the linear motion guide device includes is constituted by a plurality of axially divided segments. Each of these segments supports a plurality of guided members which make contact with two, mutually paired, guide surfaces of a housing. A preload can be applied between the guide surfaces and the guided member. The housing has a sealed structure, with a pressure inside the housing higher than an external pressure, for preventing external sand and water from entering the housing.

The disclosure relates to a drive device (V) for producing a translational motion of a movable tappet (8) by means of an electromagnetic rotating machine. The drive device includes an inner rotor (4) and an outer coaxial stator (5) and has a movement-thread pair integrated coaxially in the stator. The movement-thread pair comprising a lead screw (6), which is coupled to the rotor for conjoint rotation, and a threaded nut (7), which is linearly guided in a stator sleeve (2) in a rotationally fixed manner and is rigidly coupled to the tappet. The rotor is guided for rotation around the stator and a torque being transferred from the rotor to the lead screw by means of a thin-walled flange (10). A rotational fixation (11) of the threaded nut in the cavity of the stator sleeve is provided as a result of interlocking joining of the two.