A rotation transmission mechanism may include a plurality of rotation transmission members having a drive wheel and a driven wheel, and an urging member which urges the driven wheel in a reverse direction to a rotational direction by power of the drive source. The drive wheel and the driven wheel are provided with engagement parts structured to transmit turning of the drive wheel to the driven wheel, the drive wheel is provided with a cam face forming part on which the engagement part of the driven wheel is slid at a rotational position where the engagement parts are not engaged with each other, and a brake member structured to generate a rotation load is disposed in a range on an upstream side of a power transmission path including the drive wheel with respect to the driven wheel in the power transmission path transmitting the power of the drive source.

A rotation transmission mechanism may include a plurality of rotation transmission members having a drive wheel and a driven wheel, and an urging member which urges the driven wheel in a reverse direction to a rotational direction by power of the drive source. The drive wheel and the driven wheel are provided with engagement parts structured to transmit turning of the drive wheel to the driven wheel, the drive wheel is provided with a cam face forming part on which the engagement part of the driven wheel is slid at a rotational position where the engagement parts are not engaged with each other, and a brake member structured to generate a rotation load is disposed in a range on an upstream side of a power transmission path including the drive wheel with respect to the driven wheel in the power transmission path transmitting the power of the drive source.

A method and device for reducing excessive door or hatch closing velocity. An actuator containing a force alignment channel causes piston movement within a hydraulic cylinder creating resistance to prevent door or hatch slamming. Closing of the car door is against the resistance of the hydraulic cylinder as hydraulic fluid moves through at least one channel to allow hydraulic fluid to move from a first side of the piston to a second side of a piston. The resistance of the hydraulic cylinder to an incremental movement in the car door varies during the closing of the car door. A force alignment channel within an actuator creates variation of the resistance of the hydraulic cylinder to the incremental movement in the car door by varying a rate of movement of the piston within the hydraulic cylinder per degree of closure of the car door.

A retraction device for two end positions has two driving elements which are connected to one another by a spring energy accumulator. Each driving element is displaceably mounted in a respective guide housing. A sliding door has such a retraction device, and a sliding door arrangement has such a sliding door. Each driving element is coupled or can be coupled to a cylinder-piston unit mounted in the respective guide housing. Both guide housings are adjustable relative to one another in the longitudinal direction of the retraction device by means of at least one sliding joint. This provides a retraction device for two end positions, which can be used for a range of door widths without design modifications.

An apparatus for moving sliding doors and wardrobe doors fixed to the inner face of the top of a door (10) comprises at least one carriage (34) and at least one braking device (20) with a slider (22) pulled by at least one coil return spring (24). The door is hung from a beam made up of two extruded profiles (12), (14), the first of which is fastened to the wall with screws (15) and relative plugs; the second extruded profile (14) is fastened to the first profile (12) with snap-in couplings. These coupled profiles define a cavity (16) in which the braking device (20) is housed and stabilised with screws (18), fixed on a cantilevered bracket (26) of the second extruded profile (14); the latter defines a sliding track (28) for the wheels or bearings (30) of the carriage(s) (34), fixed to the door (10) at a recess (32).

A system for controlling a motion of a door of a vehicle comprising: at least one user interface device comprising a control device, the control device being in operable communication with a door check mechanism configured for resisting the motion of the door relative to a vehicle body, wherein operation of the control device controls operation of the door check mechanism. The door check mechanism can comprise: a linkage coupled between a vehicle body and the door, the linkage configured to pivot about an axis; and a brake assembly coupled to the linkage for applying a resistive force to the linkage to resist rotation of the linkage about the axis.

A tailgate lifting apparatus is provided that includes: a first cog, a second cog, and a housing fixedly attached to a dump body. Preferably, the first cog is fixedly attached to a lower hinge pin of the tailgate, the second cog is rotatably coupled to the housing, and the second cog meshes with the first cog. The housing includes a ratcheting mechanism that selectively engages the second cog, the device therewith operable therewith to maintain the tailgate in a plurality of positions between a fully opened and fully closed positions.

An in-vehicle device includes: a movable member; a motor that moves the movable member; at least one detection switch that detects movement of the movable member; and a controller that controls the motor based on a detected output of the detection switch. The in-vehicle device further includes: a locking mechanism unit that, upon determination by the controller based on the detected output from the detection switch that the movable member reaches an end point region in a movement direction, locks the movable member, and upon determination by the controller that a main switch is set to OFF, releases the lock; and a motor driver that, after the release of the lock by the locking mechanism unit, upon determination by the controller based on the detected output from the detection switch that the movable member is moved again, drives the motor to move the movable member.

An in-vehicle device includes: a movable member; a motor that moves the movable member; at least one detection switch that detects movement of the movable member; and a controller that controls the motor based on a detected output of the detection switch. The in-vehicle device further includes: a locking mechanism unit that, upon determination by the controller based on the detected output from the detection switch that the movable member reaches an end point region in a movement direction, locks the movable member, and upon determination by the controller that a main switch is set to OFF, releases the lock; and a motor driver that, after the release of the lock by the locking mechanism unit, upon determination by the controller based on the detected output from the detection switch that the movable member is moved again, drives the motor to move the movable member.

A door assembly of a vehicle includes a first door panel movable at least partially across a door opening from a first side of the door opening toward a second side of the door opening, a second door panel spaced apart from the first door panel and movable at least partially across the door opening from the first side toward the second side. A first magnetic element is located at the first door panel and a second magnetic element is located at the second door panel. The second magnetic element is interactive with the first magnetic element such that moving of the first door across the door opening causes movement of the second door panel across the door opening.