A helical compression spring has an outer diameter between 15 and 50 mm. The helical compression spring having a helically coiled steel wire. The diameter d of the steel wire is between 2 and 5 mm. The steel wire contains a steel alloy having between 0.8 and 0.95 wt % C; between 0.2 and 0.9 wt % Mn; between 0.1 and 1.4 wt % Si; between 0.15 and 0.4 wt % Cr; optionally between 0.04 and 0.2 wt % V; optionally between 0.0005 and 0.008 wt % B; optionally between 0.02 and 0.06 wt % Al; unavoidable impurities; and the balance being iron. The steel alloy has a carbon equivalent higher than 1. The carbon equivalent is defined as: C wt %+(Mn wt %/6)+(Si wt %/5)+(Cr wt %/5)+(V wt %/5). The microstructure of the steel wire in the helical compression spring is drawn lamellar pearlite.

A supporting member includes: a rotatable spindle supported in a first housing; a cylindrical first guide fixed in a second housing, and guiding a relative movement of the spindle in an axial direction; a second guide fixed in the first housing, having an inner diameter larger than a first guide's outer diameter, and relatively movable in the direction to the first guide; and a nut being a stepped shaft-like member including an insertion portion inserted into the first guide, a protruding portion protruded from the first guide, and a narrow portion provided therebetween. The first guide includes a caulking portion to the nut at an opening end. The caulking portion includes a portion extending to intersect in the direction along a step between the insertion portion and the narrow portion, and another portion parallel to the direction along an outer circumferential surface of the narrow portion.

A drive device for moving a leaf, in particular a door leaf or a window leaf, with an electric machine including an, in particular single, stator and an, in particular single, rotor, which can be rotated about a machine axis, and with a gear coupled to the electric machine. The gear has a first gear element, which can be rotated coaxially with the machine axis, with the first gear element being connected to the rotor in a rotationally-fixed manner.

A cooking appliance includes a housing having a stowage compartment, a door for closing a cooking chamber, and a door opening mechanism constructed to automatically move the door at least in a section of an entire movement path between a closed position and an open position of the door, in which open position the door is retractable into the stowage compartment of the housing. The door opening mechanism includes an actuation unit which is configured to automatically tilt the door from the closed position into an intermediate position located such that any further movement of the door from the intermediate position into the open position is implemented automatically under the force of gravity of the door.

A motor-integrated power trunk opening system applied to a vehicle may include a hinge arm which is divided into a power side portion and an interlocking side portion to support left and right end portions of a trunk lid covering a trunk compartment, and an actuator which is mounted to the power side hinge arm and moves the hinge arm upwards using generated power so that the trunk lid opens

An electromechanical strut is provided for moving a pivotal closure member between open and closed positions relative to a motor vehicle body. The electromechanical strut includes a drive mechanism having a motor-gearbox assembly, flex coupling assembly, and a spring-loaded supplemental friction assembly that are operable to drive a rotatable power screw. The drive mechanism converts rotary motion of the power screw into linear motion of an extensible member to move the extensible member between a retracted position corresponding to the closure member closed position and an extended position corresponding to the closure member open position. The motor-gearbox assembly includes a motor and a geartrain having an output component driven at a reduced speed relative to the motor speed. The flex coupling assembly is operably disposed between the output component and the power screw. The spring-loaded supplemental friction assembly generates and applies a supplemental frictional force to the flex coupling assembly.

The present invention is provided with: a first housing; a second housing; a guide tube; a third housing; a motor part that is incorporated in the first housing; a screw shaft that is driven to rotate upon reception of the rotational force of a shaft of the motor part and applies power to the third housing; a bearing holder that is provided in the first housing; an inner flange that is provided in the second housing; an outer flange that is provided in the guide tube and that is arranged at a position where the outer flange overlaps the inner flange in an axial direction; a seal that is sandwiched between the inner and the outer flanges; and a coil spring (47) that is provided between the second housing (7) and the guide tube (48) and presses the inner flange (46) toward the outer flange (49) side.

A motor vehicle according to an exemplary aspect of the present disclosure includes, among other things, a cargo box, a tailgate moveable relative to the cargo box between an open position and a closed position, and a cable affixed to the cargo box and the tailgate. At least a portion of the cable includes a shape-memory material. Additionally, the motor vehicle includes a controller configured to activate the shape-memory material when the tailgate moves between the open and closed positions. A method is also disclosed.

A drive device includes a housing having a first housing part and a second housing part. The first housing part is axially movable in relation to the second housing part along a longitudinal axis of the housing. The drive device includes a preloading means located in the housing for axially preloading the first housing part with respect to the second housing part; a spindle rod coupled to one of the first housing part and the second housing part; and a spindle nut. The spindle nut is in threaded engagement with the spindle rod and is coupled to the other one of the first housing part and the second housing part. A stop part is at least indirectly connected to the first housing part, and a first end of the preloading means rests against the stop part.

A supporting member includes: a rotatable spindle supported in a first housing; a cylindrical first guide fixed in a second housing, and guiding a relative movement of the spindle in an axial direction; a second guide fixed in the first housing, having an inner diameter larger than a first guide's outer diameter, and relatively movable in the direction to the first guide; and a nut being a stepped shaft-like member including an insertion portion inserted into the first guide, a protruding portion protruded from the first guide, and a narrow portion provided therebetween. The first guide includes a caulking portion to the nut at an opening end. The caulking portion includes a portion extending to intersect in the direction along a step between the insertion portion and the narrow portion, and another portion parallel to the direction along an outer circumferential surface of the narrow portion.