A drive unit is configured such that a closing side drum and an opening side drum are provided parallel to each other. In a state in which a closing side cable is wound around a small diameter portion of the closing side drum and an opening side cable is wound around a small diameter portion of the opening side drum, the sliding door moves from a predetermined position relative to an opening portion to a position where the opening portion is fully closed, and, in the state in which the closing side cable is wound around a large diameter portion of the closing side drum and the opening side cable is wound around a large diameter portion of the opening side drum, the sliding door moves from the predetermined position relative to the opening portion to a position where the opening portion is fully open.

A vehicle trunk opening and closing control device includes a bracket secured to an inner panel of a trunk, a hinge arm rotatably hinged at a first side thereof to the bracket and connected at a second side thereof to a trunk lid, a sliding rail disposed adjacent to one side of the hinge arm and coupled to the hinge arm, and a torsion bar, which is fixed in position by being caught in a slot formed in the bracket and is configured to rotate the hinge arm by applying tension to the sliding rail through contact with the sliding rail.

An apparatus comprises a base plate configured to be coupled to a door, the door configured to be positioned in an open position and a closed position; a closing mechanism coupled to the base plate and configured to be coupled to a hinge of the door and having an unprimed state and a primed state, the closing mechanism configured to be transitioned between the unprimed state and the primed state by a user; wherein in the unprimed state the closing mechanism is decoupled from operation of the door; and in the primed state the closing mechanism is configured to move the door into the closed position responsive to receipt of a signal, and the closing mechanism is configured to allow movement of the door between the open position and the closed position in absence of the signal.

An actuating drive for moving a flap includes a housing, an actuating arm pivotably mounted on or in the housing for the moving flap, a spring apparatus for applying force to the actuating arm, a transmission mechanism for transmitting a force of the spring apparatus onto the actuating arm, an adjusting apparatus by which a lever geometry of the transmission mechanism and/or the force of the spring apparatus, which force acts on the actuating arm, can be variably adjusted, and a damping apparatus by which a movement of the actuating arm can be damped by a damping power in the event of a damping stroke. The adjusting apparatus is coupled to the damping apparatus by a coupling apparatus, and the position of the damping apparatus relative to the housing, the damping stroke of the damping apparatus, and/or the damping power of the damping apparatus can be variably adjusted.

An apparatus comprises a base plate configured to be coupled to a door, the door configured to be positioned in an open position and a closed position; a closing mechanism coupled to the base plate and configured to be coupled to a hinge of the door and having an unprimed state and a primed state, the closing mechanism configured to be transitioned between the unprimed state and the primed state by a user; wherein in the unprimed state the closing mechanism is decoupled from operation of the door; and in the primed state the closing mechanism is configured to move the door into the closed position responsive to receipt of a signal, and the closing mechanism is configured to allow movement of the door between the open position and the closed position in absence of the signal.

Door operator (10) for an overhead door system (400), said door operator (10) being configured to move a door (401) of said door system (400), comprising: a first electric motor (100), a second electric motor (200), a planetary gearing (300), a control unit (11) configured to control the first (100) and second electric motor (200), and wherein the first electric motor (100) is connected to a first planetary gearing input shaft (301) and the second electric motor (200) is connected to a second planetary gearing input shaft (302), and wherein a planetary gearing output shaft (303) is associated with a shaft (402) for movement of the door (401).

A door opening and closing device for a refrigerator includes a door coupled by means of a hinge unit to a main body defining a storage compartment therein, a gasket disposed between the door and the main body to provide a hermetic seal therebetween, and an opening and closing unit for opening and closing the door with respect to the main body, wherein the opening and closing unit includes a drive unit for generating a driving force, a gasket separation mechanism for pushing the main body using rotational force transmitted from the drive unit to separate the gasket from the main body or the door, and a door rotating mechanism for rotating the door using the rotational force transmitted from the drive unit.

The invention relates to a drive mechanism having a drive motor and a drive element drivable by the drive motor. A first worm gear, which has a first worm gear shaft and a first worm wheel, and a second worm gear, which has a second worm gear shaft and a second worm wheel, are connected between the drive motor and the drive element.

An actuator device for automatically activating the vehicle door of a motor vehicle, in particular the tailgate, includes an electromotive drive and a radially extending arm. The radially extending arm is attached either to the vehicle door or to a vehicle bodywork and is set in motion by the electromotive drive. The electromotive drive has an electrical motor and a gearbox driven by the motor. The gearbox has a wobble mechanism.

The present invention discloses a spindle with speed adjustment and automatic return device, included set up one resilient component, one cylinder, also one spindle and one cam of the same spindle on a base, between the cam and the resilient component set up one slider component, and one first rack set up on the slider component, both side of the cylinder set up with one cylinder rod and one flow adjustment valve, and one second rack set up on the cylinder rod, one gear set meshed in between the first rack and the second rack; the cam can follow spindle rotation and drive slider component move to the resilient component, to bring the first rack through gear set to drive the cylinder rod by the second rack, to make the cylinder through flow adjustment valve to suck the medium.