A gear for an adjusting device in vehicles for adjusting two vehicle parts adjustable relative to each other, in particular, for adjusting two parts of a seat adjusting device, a window lifter, or a sun roof, the gear including a drivable drive screw having gear teeth, a spindle nut, which has spindle nut teeth engaging with the screw teeth, and an internal thread, using which the spindle nut can be brought into engagement with a threaded spindle of the adjusting device, and a gear housing, which accommodates and supports the drive screw and the spindle nut. The spindle nut is made at least partially of metal, and the drive screw is made of plastic, and the gear housing includes a first bearing section made of plastic for supporting the spindle nut and a second bearing section made of metal for supporting the drive screw.

An electric actuator assembly comprises a main actuator including a gear set containing a stepped friction portion located on a gear shaft of a drive gear thereof, an extension rod, and a power drive for rotating the gear set to move the extension rod through a lead screw, and a one-way bearing consisting of an inner race fitted to the gear shaft of the drive gear, an outer race surrounding the inner race, and a backstop mechanism mounted in between. When operating the power drive to rotate the gear set in lifting the extension rod, the inner race is rotated by the gear set relative to the outer race in one direction. When the driving power is off, the one-way bearing cannot rotate in reverse direction, the stepped friction portion is abutted against the flat contact surface of the inner race to produce a braking effect, preventing falling of the load that is supported on the main actuator.

An electronic device is provided. The electronic device includes a function module, a body, and a motor assembly. The body includes an accommodation space for accommodating the function module. The motor assembly includes a drive motor, a gear, a rotation output shaft, a displacement mechanism, and a latch. The drive motor includes a shaft. The gear is fixedly attached to the shaft. The rotation output shaft includes a gear teeth portion. The gear teeth portion is coupled to the gear. The rotation output shaft is connected to the function module and is configured to drive the function module to rotate. The displacement mechanism synchronizes with the shaft and is separated from the rotation output shaft. The displacement mechanism includes a linear motion component. The latch is connected to the linear motion component, and is configured to engage the function module.

An electromechanical-hydraulic piston actuator providing pressurized pressure medium for a brake system of a vehicle, including an electric motor having a stator and a rotor, a rotation-translation mechanism driven by the electric motor and which has a rotatable threaded nut and a threaded spindle prevented from rotating and displaceable in its axial direction, a piston coupled with the threaded spindle in the axial direction thereof, a hydraulic cylinder having a hydraulic chamber filled with pressure medium into which the piston is displaceable from a rear piston position towards a forward piston position to pressurize the pressure medium and/or expel it from the chamber. A hydraulic connection is connected to the chamber via which pressure medium can be expelled from the chamber. An isolation device is provided for the piston-travel-controlled isolation of the rotational coupling between the rotor of the electric motor and the threaded nut.

A joining and levelling system adapted for use in furniture and furnishing items having a bottom and a shoulder positionable with respect to a floor includes, in combination, a front foot unit and a rear foot unit, each having a connection group and a blocking group of a joining device for stably interconnecting the bottom and the shoulder. The connection group and the blocking group can be actuated from the front with respect to the furniture, the front and rear foot units being positioned beneath the bottom and facing the shoulder, and the bottom and the shoulder not resting on the floor. The front and rear foot units are disposed in an identical body for both the front and the rear foot units, and actuation rods of the joining device are arranged in the rear foot unit and positioned between the front and the rear foot units.

A posture correction mechanism includes a carrier attached to a housing, and a gearwheel rotatably attached to the housing, the gearwheel includes a screw hole engaged with a screw which is moveable up and down relative to the housing for driving the gearwheel to rotate relative to the housing, two shafts are rotatably attached to the carrier and each has an arm rest, two gears are rotatably attached to the carrier and engaged with the gearwheel, the gears are connected to the shafts for allowing the shafts to be driven by the gearwheel to rotate relative to the carrier and for allowing the arm rests to be rotated toward or away from the user.

A linear actuator comprises a housing, inside which a spindle assembly, a push rod assembly driven by the spindle assembly, a limit switch for limiting stroke of the push rod assembly, and a motor for driving the spindle assembly are mounted. A connecting seat is disposed on the circuit board for centralizing connection terminals. The motor is electrically connected to the connection terminals. The housing is provided with a plug-in window aligned to the connecting seat. An electric plug of the linear actuator passes through the plug-in window and is plugged into the connecting seat. The electric plug and the housing are fastened together via a mounting component.

Medical devices in accordance with various embodiments of the present invention employ one or more coaxial screw gear sleeve mechanisms. In various embodiments, coaxial screw gear sleeve mechanisms include a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing the device to expand.

An electric actuator including: an electric motor capable of rotating forward and backward; and a motion conversion mechanism configured to convert rotation of the electric motor into reciprocating linear motion of a screw shaft. The motion conversion mechanism including: a nut configured to be rotationally driven by the electric motor; and the screw shaft capable of being threadedly inserted through the nut. A lubricant holding portion having an outer diameter larger than a diameter of a screw hole of the nut and being capable of housing lubricant is formed on an inner periphery of an end of the nut in an axial direction. A lid member configured to cover an opening end of the lubricant holding portion in an axial direction is provided. Thus, an electric actuator can prevent wear at a threaded engagement portion between a nut and a screw shaft by sufficiently lubricating the threaded engagement portion.

An actuation system for an aircraft piston engine includes a controller and an actuator. The controller selectively supplies motor control signals to a motor. The actuator includes a housing, a motor, a main rod, a control handle, and an inner rod. The main rod receives a drive torque from the motor and translates in either a first axial direction or a second axial direction. The main rod is responsive to an axial drive force to translate in either the first axial direction or the second axial direction. The inner rod is disposed within the main rod and is movable between a first position, in which main rod rotation causes the main rod to translate, and a second position, in which main rod rotation does not cause the main rod to translate, but application of the axial force to the control handle causes the main rod to translate.