A locking device includes a cam that is formed in a rotating unit configured to rotate about a rotational center axis that is parallel to an opening width direction of a door, and the cam permits or prohibits movement of a door leaf in the opening width direction in accordance with a rotational position of the rotating unit.

A drive carriage for a door, in particular garage door, comprising a body which is linearly shiftably mountable in a rail of a door drive, and a door driver pivotally mounted on the body, wherein a carriage driver which is shiftable relative to the body and is connectable with a power transmission means of the door drive, a latch mounted in the body via a flexible element and is pushable into a recess of the carriage driver by the flexible element, and a latching slide which urges the latch against the flexible element into an unlocking position in which the latch is not pushed into the recess by the flexible element, and which in a drive position permits pushing of the latch into the recess of the carriage driver by the flexible element in order to take a locking position in which the carriage driver is coupled with the body.

The present disclosure provides a door opening and closing device, and a refrigerator. A door of the refrigerator is rotatably connected to a refrigerator body by means of a rotating shaft, wherein the rotating shaft is fixedly connected to the door, the door opening and closing device includes a connecting rod, a first drive means, a second drive means and an elastic member. The connecting rod is arranged on the door, and the connecting rod includes a first end and a second end that matches a shaft hole. The first drive means is connected to the connecting rod and is configured to drive the connecting rod to rotate. The second drive means is configured to drive the connecting rod to move towards the shaft hole, and cause the second end of the connecting rod to be inserted into the shaft hole.

A movable latch housing apparatus and method of installation for enhancing security of a latch mechanism that has a channel with a linear drive that is removably engagable to a slidable engagement structure with a shoulder that is pivotally attached through an arm to a door for automated opening and closing, with a lever that can selectably disengage the slidable engagement structure from the linear drive to allow the door to open freely. The apparatus includes a base and a pair of opposing sidewalls each extending in a same direction perpendicular to and straddling the base and attach to the shoulder, the sidewalls extend beyond the base forming an open ended slot for arm movement. Wherein operationally, the base and the sidewalls shield the lever from unauthorized access to help prevent disengagement of the lever from the linear drive which would allow the door to be freely opened.

The technology relates to assisting in the closing of a vehicle door by automatically pulling a door closed. One or more computing devices having one or more processors may receive, from one or more sensors, information indicating that a door on the vehicle is not closed. In response to the received information indicating that the door is not closed, the one or more computing devices may determine to send a triggering signal to close the door. The one or more computing devices may send the triggering signal to the actuator and the actuator may receive the triggering signal. In response to receiving the triggering signal the actuator may be activated to close the door of the vehicle without user input.

This invention is about an improved garage door opener system, with design features for preventing garage door break-in from outside of the garage using an object such as a hanger. Typically, a person pulls down a cord connected to a release handle to release emergency release of a garage door opener, allowing the door to be manually open or closed. An unauthorized person may attempt to pull down the cord using a hanger from outside the garage or to pull or push down the release handle, to open the door from outside and gain unauthorized entrance. The improved garage door opener system provides a mechanism to reverse the pulling direction of the cord and also protects release handle from being accessed from outside the garage, for increased security.

A drive system for a motor vehicle door is provided including an electric motor and a hinge for fastening the motor vehicle door. The hinge includes a door leaf, a body leaf for attachment to the body and a hinge pin arranged coaxially to the hinge axis and rotatably mounted on the body leaf. The electric motor includes a stator and a rotor arranged coaxially with the hinge axis in the stator and mounted rotatably about the hinge axis relative to the stator. The hinge pin is disposed in sections within the rotor, the rotor being coupled to the hinge pin in a gearless manner to transmit rotation. The drive system includes a tolerance ring arranged between the rotor and the hinge pin for transmitting the rotation from the rotor to the hinge pin, wherein the tolerance ring is coupled frictionally to the hinge pin or to the rotor.

A vehicle includes a chassis, a door track, a door operatively connected to the door track and adapted to move between a closed position and an open position, and a hinge assembly coupled to the door. The hinge assembly is movably coupled to the door track and includes a first bracket coupled to the door, a second bracket coupled to the first bracket, and a transport assembly coupled to the second bracket and adapted to move along the door track as the door moves between the open and closed positions. The transport assembly includes a coupling member for releasably coupling the second bracket to the transport assembly. Upon movement of the second bracket from the first position to the second position, the door moves to an extended open position with respect to the door track.

A hinge closure (1) including a first hinge element (2) for arrangement on a door (4) and a second hinge element (3) for arrangement on a door frame, wherein the first hinge element (2) and the second hinge element (3) interlock via a locking device (7) an actuating device (6) actuates the locking device (7), and an emergency unlocking device (8) unlocks the two hinge elements (2, 3). In another embodiment, a door (4) includes such a hinge closure (1).

A rotary actuator (1) for a door (2) or ramp comprises an electric motor (3), a reduction gear (4, 5) connected to a front portion (6) of a shaft (7) of the motor (3), an output shaft (8) connected to the reduction gear (4, 5), an automatic locking brake (9) connected to a rear portion (10) of the motor shaft (7) and a decoupler (11) connected between the rear portion (10) of the motor shaft (7) and the locking brake (9) and actuatable to decouple the motor shaft (7) from the locking brake (9).