A high-performance four-axis robot (1) with horizontal joints includes a robot body (11), a first arm assembly (12) connected to the robot body 11, a second arm assembly (13) that one end thereof is connected to the first arm assembly, and a R-axis rotation assembly arranged at the other side of the second arm assembly opposite to the first arm assembly. Assembly of the robot body includes a linear assembly unit (115) arranged in a vertical direction, a fixed seat (111) capable of moving up and down along the linear assembly unit, and a drive assembly (14) configured to drive the fixed seat to move and arranged at a lower portion of the linear assembly unit. The drive assembly includes a first drive motor (141) arranged at the lower portion of the linear assembly unit and a coupling (142) connected to an output shaft of the first drive motor.

In a parking lock for an automatic transmission, an electrical parking lock actuator has an electric motor, a spur gear stage driveable by the electric motor, and a worm gear stage driveable by the spur gear stage. A worm shaft of the worm gear stage is connected rotationally conjointly to an output gear of the spur gear stage, and a worm gear of the worm gear stage is connected rotationally conjointly to a transmission-side parking lock shaft. The worm shaft is fixed in an axially displaceable manner in the output gear. A stop limits the pivoting movement of the worm gear when a parking lock position of the parking lock shaft is reached. A spring braces the worm shaft in an axial direction of the worm shaft against a holding mechanism which is situated in a stop position, in which the holding mechanism is fixed by an electrically energized electromagnet.

A drive arrangement for a motor vehicle functional part includes: a housing, in which a drive motor, a gear mechanism and an adjustor are provided at least partially; a drive shaft configured to transfer the adjustor via the gear mechanism from a closed position into an open position and vice versa; and a wrap spring arrangement comprising two wrap spring members, which act in opposite directions. The wrap spring arrangement is arranged on a gear mechanism output side, in a region of the adjustor.

A cable chain retraction system for a robot has a constant force on the cable chain because of the use of constant force springs cartridges. Spring cartridges may be added or subtracted to adjust the spring force on the cable chain. All components may be pre-installed on a rail, such as a quick release guiderail.

A telescopic adjuster including first and second linear actuators, a connecting platform and first and second telescopic levers is provided. The first linear actuator includes a first screw and a pair of first fixing rings. The first fixing rings are arranged at two respective ends of the first screw. The second linear actuator includes a second screw and a second fixing ring. The second fixing ring is arranged at the end of the second screw, relatively away from the connecting platform. The first and second linear actuators are arranged on the connecting platform in parallel. The first screw pushes the connecting platform to move along the first screw, and the first fixing rings limit a movement of the connecting platform. The first and second telescopic levers are coaxially arranged.

A gas ejection apparatus includes: a cylinder having a rotating member that rotates within the cylinder; a motor coupled to the rotating member of the cylinder and that causes gas to be compressed inside the cylinder and to be ejected from the cylinder by causing rotation of the rotating member; a control circuit board that controls the motor; and a case in which the cylinder, the motor and the control circuit board are disposed. The case extends in a planar direction and has side surfaces that are orthogonal to the planar direction. The motor and the cylinder are arranged adjacent to each other in the planar direction of the case. The control circuit board is disposed adjacent to and substantially parallel to one of the side surfaces of the case.

A self-locking nut and screw assembly may include a screw and a first nut rotatable and linearly translatable with respect to each other. The assembly may also include a first motor configured to provide torque to one of the screw and the first nut. The assembly may further include a locking mechanism configured to lock the screw to prevent backdrive when the motor is not providing torque to the one of the screw and the first nut.

A gear assembly for a seat adjuster includes a gear housing, a worm gear, a helical gear meshed with the worm gear, a wobble gear carried on an eccentric lobe of the helical gear, a pinion disc, a first ring gear disposed in the gear housing, a second ring gear disposed in the pinion disc, and a pinion member carrying the helical gear and the pinion disc. The wobble gear includes first and second sets of wobble gear teeth that mesh with the first and second ring gears, respectively. A housing side gear ring disposed in the gear housing defines part of the first ring gear and the gear housing defines another part of the first ring gear. The pinion disc defines the second ring gear.

In this mechanism, the linear or rotational motion is transmitted from one side to the other in only one direction, while its reverse motion and both other side motion directions can run freely without transmission. To obtain this function of transmitting the motion between both sides in different natures, the link that transmits the motion should be linked with a body which is not controlled by the in-between relative motion. The driving side can oscillate in short strokes or move with unlimited motion, both motion natures can have its own transmission mechanism design. Links could be used in pairs for force balance. One of the ways to transmit the motion from the driving side to the links is by using a waving surface to push and release the link. These waves can be formed in number which is different from the number of link pairs in order to ensure different phases and hence insure contacts of some of them for high and stable transmitted forces and torques. The motion transmission from the link and the motion output body could be through biting, friction or positive engagement in teethed surfaces.

Actuators and methods useful in the operation aircraft flight control surfaces are disclosed. Some of the actuators and methods disclosed may be useful in the operation flight control surfaces when a fault condition such as a jam associated with an actuator is detected. An exemplary electromechanical actuator disclosed comprises: a motor; a first screw configured for translation movement relative to a structure of the aircraft when driven by the motor; a second screw mounted in series with the first screw; and a fuse element coupling the first screw and the second screw together to permit translation movement of the second screw together with the first screw. The fuse element may permit at least partial disengagement of the second screw from the first screw to permit translation of the second screw relative to the first screw. The fuse element may also allow an active flutter damping of the flight control surface. The fuse element may comprise magneto-rheological fluid.