A nut leadscrew type automatic door opening and closing mechanism, an automobile automatic door, and an automobile. The nut leadscrew type automatic door opening and closing mechanism includes a driving device, a gearbox, a nut gear, and a leadscrew. The driving device is fixedly connected to a door, the gearbox is hinged to the door, and the nut gear is disposed in the gearbox. One end of the leadscrew is hinged to a vehicle body, and the other end extends in an axial direction. The nut gear is sleeved on the leadscrew, and the driving device is configured to drive the nut gear to rotate, so that the nut gear is reciprocally linearly movable along the leadscrew to push the door to open or close relative to the vehicle body.

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 hinge (1) for connecting a door to a household appliance compartment is described, comprising a fastening bracket (2) adapted to be fastened to the compartment of said household appliance, a movable support (3) to rotatably constrain said door to said fastening bracket (2), an activating arm (5) coupled to said fastening bracket (2), movement means (6) adapted to move said activating arm (5), said activating arm (5) comprising a first end portion (5a) adapted to be constrained to said door, and a second end portion (5b) fitted to be coupled to said movement means (6) to move said activating arm (5) between an open position (P2) of the door and a closed position (P1) of the door, said movement means (6) comprising an electric motor (10) and reversible connecting means (9) to couple and decouple selectively said electric motor (10) and said second end portion (5b), said hinge (1) being configured so that when said electric motor (10) is coupled to said second end portion (5b), the electric motor (10) causes the movement of the activating arm (5), whereas when said electric motor (10) is decoupled from said second end portion (5b), the movement of the first end portion (5a) occurs independently of the electric motor (10) to allow a user to freely move the door.

A bi-directional door opening structure includes a front door configured to be rotatably opened with respect to a front hinge part positioned in a roof of a vehicle, a rear door configured to be rotatably opened with respect to a rear hinge part positioned in the roof of the vehicle, and a drive unit positioned in the roof at a point where the front door and the rear door are adjacent to each other, and configured to apply an opening force to the front door and the rear door, wherein the drive unit includes a spindle unit configured to open at least one of the front door and the rear door, which has been unlocked by a driving force applied from a driving part, and a differential gear configured to deliver the driving force between the spindle unit and the driving part.

A movable barrier operator release mechanism includes an operator chassis having a first side. A shaft extending in a first direction from the first side of the chassis. A brake assembly coupled to the chassis and the first shaft extends into the brake assembly. The brake assembly includes a lever, mounted to a mounting plate of the brake assembly on end and freely movable at the other end. A cable attached to the lever that when pulled pivots the lever about its mounting point. When moved, the lever disengages the brake assembly allowing for free movement of the movable barrier.

A power closure actuator for powering a movable closure includes a shaft situated between an electric motor and an output member. A brake device along the shaft is actuable via an electric brake actuator to apply braking. An active brake clamp is movable by the electric brake actuator. An axially floating rotor is rotatable with the shaft and has a first axial side facing the active brake clamp a second axial side providing a second braking surface. A passive backing brake clamp is positioned adjacent the second braking surface. The axially floating rotor is biased away from the passive backing brake clamp by a first biasing member. Deflection of the first biasing member coupled with axial movement of the active brake clamp and the axially floating rotor enables braking by pinching action of the axially floating rotor between the active brake clamp and the passive backing brake clamp.

A shaft-mounted overhead door operator is disclosed having a motor, a torque transfer component such as a gear train, and a clutch that is axially movable to engage or disengage the clutch. While the door operator has power, the clutch is engaged to ensure door operator can raise, lower, and stop the overhead door as directed from a remote control. The clutch can be released in the event of a loss of power or by direction from the remote control in which case the clutch releases the shaft of the overhead door. The shaft-mounted overhead door is small, having a width no greater than three times the diameter of the shaft to which it is mounted.

An automated window mechanism having a motor and a force measuring component. A movement path is defined for the window movement relative to a window frame. The force-measuring component measures the force required to move the window along the movement path. The force required is stored as a force map and is a function of position along the path. Deviations from the force map cause the motor to take measures which may include stopping the motor.

An opening/closing direction restriction mechanism for a manual shutter device and an opening/closing direction restriction mechanism for a suspended sliding door device. This opening/closing direction restriction mechanism is provided with: a flange fixedly mounted on a fixed shaft; a bracket which is loosely fitted to the fixed shaft and can be integrally rotated with a winding member; and a two-way clutch which can be switched between a reverse rotation inhibited state in which the revolution of a planetary external gear along a winding direction of the winding member is allowed and the revolution of the planetary external gear along an unwinding direction is inhibited, and a forward rotation inhibited state in which the revolution of the planetary external gear along the winding direction of the winding member is inhibited and the revolution of the planetary external gear along the unwinding direction is allowed.

A drive system includes a first rotary component configured to be rotated by an actuator, a second rotary component selectively coupled to the first component, and a third rotary component selectively coupled to the first component. A coupling arrangement is configured to, in a first range of angular positions of the first component, couple the first and second components and decouple the first and third components and configured to, in a second range of angular positions of the first component that does not overlap with the first range, couple the first and third components and decouple the first and second components.