A door component has a damper device with two connection units that can be moved relative to each other for damping a door movement of a door of a vehicle. The damper device contains a magnetorheological fluid, as an operating fluid, and a cylinder unit having a first chamber and a second chamber. The two chambers are separated from each other by a piston which is provided with a damping valve. The damper device has a connection which is constructed for coupling to a drive. The damper device can be moved in an active manner at least from a first position into a second position by the drive which is coupled via the connection.

To provide the original cover closer which can control a rotation torque accompanied with an opening and closing operation of in a simple structure, as compared to the conventional original cover closer, solution is made in that the original cover closer comprises an attaching part attached to the main body side; a supporting part, wherein its side plates are rotatably attached to the both side plates of the attaching plate via a hinge shaft, as well as the original cover is attached to the supporting part; a pressure receiving part provided between the both side plates of the attaching part; a cam slider slidably provided inside the supporting part by making its cam portion abut against the pressure receiving part; an elastic module resiliently provided between the cam slider and a free end side of said supporting part, so as to bring the cam slider into press contact with the pressure receiving part and to rotatably urge the supporting part in an opening direction of an original cover; and a brake module provided between the supporting part and the cam slider, and that the brake module consists of a plurality of friction protruding ridge portions provided on an inner wall surface of the supporting part toward the cam slider, and at least a gently-sloping upward inclined portion gradually climbing from the cam slider side is provided on each of the friction protruding ridge portions.

A damper has a shell with a cavity. A rotating shaft is rotatably inserted into the cavity of the shell, the portion of the rotating shaft located in the cavity is provided with external thread; a guiding sleeve with internal thread can move along axially reciprocatingly to attach to the shell cavity, and the internal thread and the male thread of the rotating shaft are screwed together; A guiding structure is provided in the shell cavity. The guiding sleeve is engaged or disengaged with the guiding structure by axial movement, and when the two are disengaged, the guiding sleeve can rotate with the rotating shaft. The guiding sleeve is provided with a one-way valve passage. The one-way valve passage opens when the guiding sleeve is axially disengaged with the guiding structure. When the guiding sleeve moves axially in the reverse direction, the one-way valve passage is closed.

A hinge assembly is provided for attaching a door to a domestic appliance. The hinge assembly includes a hinge body; a damper; a foot pivotably attached to the damper and having a pivot end, the foot engaging a foot receiving portion of the appliance such that the hinge body and the door pivot relative to the appliance; and a shoulder bushing attached to the pivot end of the foot and to a pivot point of the hinge body such that the foot pivots relative to the hinge body around the pivot point, the shoulder bushing having a large diameter portion and a small diameter portion. The pivot end of the foot is fixed to the shoulder bushing at a fixing area of the small diameter portion such that a side surface of the pivot end of the foot is in contact with a side surface of the large diameter portion.

A door component has a controllable rotary damper and two connector units which can be moved relative to one another. One of the two connector units can be connected to a load-bearing construction and the other one can be connected to a movable door device of a vehicle, in order to damp a movement of the door device between a closed position and an open position in a controlled manner. Two mutually engaged spindle units are arranged between the two connector units, one spindle unit being a threaded spindle and the other being a spindle nut. A first spindle unit is fastened rotatably on a coupling rod connected to one of the connector units. A magnetorheological transmission device is arranged between the coupling rod and the first spindle unit, in order to brake a rotational movement of the first spindle unit as required.

A door component has a controllable damper device that contains a magnetorheological fluid as a working fluid. Two connection units of the damper device can be moved relative to each other. One of the two connection units can be connected to a support structure, and the other connection unit can be connected to a pivotal door device in order to damp a movement of the door device between a closed position and an open position in a controlled manner. The magnetorheological damper device has a piston unit and a cylinder unit which surrounds the piston unit. The piston unit divides a cylinder volume into two chambers. The piston unit has a first piston rod, which extends through the first chamber, and a second piston rod, which extends through the second chamber.

A rotary hinge assembly includes a fluid chamber filled with a fluid and a constricted section with a throat area which is tunable by a throat tuner to control the fluid flow passing through the constricted section. Within the fluid chamber, a rotary connecting pin is mounted so that a first longitudinal end of the pin is connected to a door, and a second longitudinal end of the pin is concentrically and rotatably mounted within the fluid chamber. On the second longitudinal end, a vane is connected and adapted to rotate for displacing the fluid present in the fluid chamber towards the constricted section, when the rotary connecting pin undergoes the rotational movement in response to opening and closing of the door.

A device has at least two components which are movable relative to one another. The first component is equipped with a rotary receptacle and wherein the second component is rotatably received on the rotary receptacle. A third component is coupled to the second component. Two connection units which are movable relative to one another and a controllable braking device are included, wherein the braking device is designed as a controllable rotary brake in order to provide controlled damping of a movement of a door device between a closed position and an open position. The first connection unit is formed on the first component, and the second connection unit is pivotably coupled to the third component. The pivot axis is oriented transversely with respect to an axis of rotation of the second component.

Proposed is a door hinge that includes an arm installed on a door, a housing installed in a main body of a mechanism provided with a door and connected to the arm by a hinge shaft, a damper casing connected to the arm inside the housing by the hinge shaft and having one surface supported by a support portion of the housing, a pair of main links connected to the arm inside the housing by a link shaft to linearly move, a main spring assembly including a spring lever and a main spring inserted into the spring lever, and a damper provided inside the damper casing and moving along the periphery of the arm.

A hinge for doors of electrical household appliances, including a box-shaped element and a first lever pivoted on the box-shaped element by means of a pin; one of either the box-shaped element or the first lever being fixable to a frame and the other being fixable to a door, to make the door tiltably movable relative to the frame between a closed position and an open position; first elastic means supported by the box-shaped element and designed to apply an elastic action on the first lever, a rod for connecting the first lever to the first elastic means, positioned in a slidable fashion inside the box-shaped element; a hydraulic damping member for applying a damping action during the reciprocal motion between the first lever and the box-shaped element.