A rolling device having a bearing housing accommodating a wheel axle carrying a wheel element, axle support members rotatably accommodated in the bearing housing and supporting the wheel axle, end portions of the wheel axle being connected to the axle support members in an eccentric position displaced from the rotational axis/4 line of the axle support members, a drive wheel connected to one of the axle support members for the axle support member to rotate following the rotation of the drive wheel, a first drive motor having a spindle engaged with the drive wheel to rotate the drive wheel and thereby the axle support member relative to the bearing housing, to displace the wheel element by eccentric movement between an extended position where at least a portion of the wheel element projects outside the bearing housing and a retracted position where the wheel element is located inside the bearing housing.

A window regulator includes a guide rail provided along an ascending/descending direction of a window for a vehicle, a carrier plate that slides on the guide rail and moves together with the window, a window power feed wire for supplying power to the window, a swing bar arranged to be swingable about the rotational axis thereof that is along a width direction of the vehicle, an elastic member that generates an elastic force for swinging the swing bar in a predetermined direction, and a wire breakage prevention means for preventing breakage of the window power feed wire at a direction changing portion where the routing direction of the window power feed wire changes as the swing bar swings. The window power feed wire is hung over the swing bar.

A chain support mechanism for use with an openable frame component and a method of using such a chain support is provided, where a chain actuator is provided in a housing, the chain actuator including a push-pull chain which chain can bend in one direction only, the housing mounted with its longitudinal extent along one frame component with the chain attached to the openable frame component where the chain actuator may be manipulated to extend or withdraw the chain from the housing, thereby moving the openable frame component, and where the chain support mechanism includes a first arm pivotably fastened to the housing and a second arm pivotably fastened to the openable frame component, where the distal end of the first arm and the distal end of the second arm are pivotably connected by a sliding member, against which sliding member the chain may slide.

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.

A chain support mechanism for use with an openable frame component and a method of using such a chain support is provided, where a chain actuator is provided in a housing, the chain actuator including a push-pull chain which chain can bend in one direction only, the housing mounted with its longitudinal extent along one frame component with the chain attached to the openable frame component where the chain actuator may be manipulated to extend or withdraw the chain from the housing, thereby moving the openable frame component, and where the chain support mechanism includes a first arm pivotably fastened to the housing and a second arm pivotably fastened to the openable frame component, where the distal end of the first arm and the distal end of the second arm are pivotably connected by a sliding member, against which sliding member the chain may slide.

Actuating drive for moving a flap of an item of furniture, comprising: a housing, at least one actuating arm, which is 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 means of 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, a damping apparatus by means of which a movement of the actuating arm can be damped by a damping power in the event of a damping stroke, wherein the adjusting apparatus is coupled to the damping apparatus by means of a coupling apparatus, the position of the damping apparatus relative to the housing and/or the damping stroke of the damping apparatus and/or the damping power of the damping apparatus can be variably adjusted.