A nut leadscrew type automatic door opening and closing mechanism for moving a door of a motor vehicle relative to a vehicle body. The nut leadscrew type automatic door opening and closing mechanism includes a driving device, a leadscrew, a nut pushing block and a pushing rod. The driving device is fixedly connected to a door, the leadscrew is rotatably mounted on the door, the nut pushing block is sleeved on the leadscrew, a first end of the pushing rod is hinged to the nut pushing block, and a second end of the pushing rod is hinged to the vehicle body. The driving device is capable of driving the leadscrew to rotate, so as to allow the nut pushing block and the pushing rod to be reciprocally linearly movable along the leadscrew to allow the pushing rod to drive the door to open or close relative to the vehicle body.

A door assembly for a restroom stall having first and second opposed side walls and a front opening includes first and second housings defining first and second inner cavities and configured to be mounted on the first and second side walls, first and second doors moveably mounted on the first and second housings, each having opposed inner and outer surfaces that are curved and being moveable along an arcing path between an open position and a closed position. In the open position, the door is retracted within the respective housing and at least partially received in the respective inner cavity, and in the closed position, the door is extended outward of the respective housing relative to the open position. In the closed positions, the first and second doors combine to obstruct the front opening, and in the open positions, the first and second doors permit passage through the front opening.

A locking structure can be used for a rectilinear center rail for opposite sliding doors. A rectilinear center rail mounted in a longitudinal direction on a sliding door, a center roller unit rollably connected to the center rail, and a swing bracket rotatably connected to the center roller unit and a vehicle body. The center roller unit includes a first rotating member and a second rotating member, a first catcher formed on the center rail to hinder a movement of the center roller unit, a second catcher formed on the swing bracket to assist a movement of the center roller unit, and a first lever configured to be locked by or unlocked from the first catcher and a second lever configured to be locked by or unlocked from the second catcher are connected to the second rotating member.

This invention provides sliding door enclosure assemblies for a framework structure, which uniquely enables equal lateral displacement of sliding doors, with the minimal engagement of a single door alone. More specifically, the sliding door enclosure assemblies of this invention comprise paired rotatable sliding doors, paired rotatable leaders, paired rotating conveyors, which conveyors are advanced by the paired rotatable leaders, guides which further comprise attachment regions to attach the paired rotatable sliding doors to the paired rotating conveyors and at least one interlocking rotatable movement regulator set of two elements, which rotate in equal and opposing directions, so that paired rotatable leaders operationally connected thereby promote lateral displacement of operationally connected rotatable sliding doors about the framework structure.

A door opening assembly is provided for moving a door of a vehicle between an open position and a closed position. The assembly includes a frame member coupled to the vehicle, a link is coupled to the frame member, and a link arm pivotally coupled to the link. A pivot arm is pivotally coupled to the frame member and a pivot bracket is pivotally coupled to the door and the pivot arm. The pivot bracket includes a slot such that a pin on the link arm slides therethrough. The assembly includes a gear rack and a gear operably coupled to the gear rack. The gear is driven by a motor as the door moves between its open and closed positions. The assembly further includes a guide track coupled to the vehicle and a roller rotatably driven along the guide track as the door moves between its open and closed positions.

A guide rail for a window lifter for raising and lowering a window pane or door system for a vehicle door having a carrier and at least two guide rails disposed on the carrier. The guide rails include a guide profile that can be twisted or bent for guiding an adjusting part of the window lifter coupled to the window pane along an adjusting direction predetermined by the guide rails and the guide profile includes a base and two legs protruding at obtuse draft angles from the ends of the base, such that the size of the draft angles is proportional to the bending or twisting of the guide rails prescribed by the kinematics of the retraction of the window pane over the adjusting travel of the window pane.

A refrigerator includes a cabinet including an outer case forming an external appearance and a storage compartment, a refrigerator door coupled to the cabinet to open or close the storage compartment, an installation bracket coupled to the outer case inside the outer case, a door opening device installed in the installation bracket outside the outer case and including a push member for opening or closing the refrigerator door, and a buffer member disposed a coupling portion between the door opening device and the installation bracket.

A door drive apparatus for adjusting a vehicle door relative to a vehicle body including an adjustment part for power transmission between the vehicle door and the vehicle body, a drive motor and a gear assembly coupling the drive motor to the adjustment part. The gear assembly includes a guide rail and a sliding element guided longitudinally on the guide rail along an adjustment direction, which is adjustable by the drive motor and is coupled to the adjustment part, and the guide rail includes two legs extended parallel to each other along the adjustment direction and the sliding element is guided between the legs along the adjustment direction.

A mechanism (1) for pivoting a charging or tank flap (2) on a charging or filler neck housing (3), which is accommodated or can be accommodated in a body component of a motor vehicle, wherein the mechanism (1) is configured, by superposing at least two at least temporarily simultaneous circular rotational movements having different rotation radii or at least one at least temporarily simultaneous circular rotational movement and at least one linear movement, to pivot the charging or tank flap (2) reversibly between a first orientation, in particular a closed position of the charging or tank flap (2), and a second orientation, in particular an open position of the charging or tank flap (2).

A device for moving a window glass for a vehicle, may include a glass holder disposed on a door panel for the vehicle and supporting the window glass, and a curved rail guiding vertical movement of the glass holder and curved to form a hinge shaft.