A refrigerator includes: a cabinet; a drawer door assembly including a front panel door part and a drawer part that defines an accommodation space; a rail that movably configured to connect the drawer door assembly to the cabinet and enable the drawer door assembly to insert into and withdraw from the cabinet; a driving device located at the front panel door part and configured to provide power; and an elevation device located in the drawer part and configured to be coupled to the driving device and elevate a portion of the drawer part relative to the front panel door part. The driving device includes: a motor assembly configured to provide driving force; a screw assembly configured to perform an elevation operation based on the driving force; and a lever that connects the screw assembly to the elevation device and that is configured to rotate based on the elevation operation.

A touchless stall door opening and closing system includes a motor, a door pivot for pivoting a door between an open position and a closed position, a locking mechanism for locking the door when the door is in the closed position, and a microcontroller for receiving a signal from a first sensor to drive the motor for opening the door and for receiving a signal from a second sensor for actuating the locking mechanism for unlocking the door. A method for touchless operation of the door includes touchless opening of the door, touchless closing of the door, and touchless locking and unlocking of the door.

A hinge includes two rotatable axle units disposed on a base seat and each having two rotatable hinge shafts, two movable bracket units each including a base plate, two rotary blocks non-rotatably sleeved on the hinge shafts, and two movable plates movable relative to the rotary blocks, and two synchronizing units for making synchronous rotations of the hinge shafts. Each synchronizing unit includes a first gear member having two end surfaces in form of bevel gears, and two second gear members each meshing with the respective end surface and fitted to the respective rotary block. Rotations of the hinge shafts at one side of the base seat result in rotations of the rotary blocks and the second gear members, and bring in rotations of the second gear members, the rotary blocks and the hinge shafts at the other side to make the synchronous rotations.

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 cable-operated drive mechanism for a powered motor vehicle sliding closure panel and method of construction of the cable-operated drive mechanism is provided. The cable-operated drive mechanism includes a cable drum mechanism having a first cable drum supported for rotation about a first drum axis and a second cable drum supported for rotation about a second drum axis. A first cable winds and unwinds about the first cable drum in response to rotation of the first cable drum in opposite directions and a second cable unwinds and winds about the second cable drum in response to rotation of the second cable drum in opposite directions. A drive member is operably coupled to at least one of the first cable drum and second cable drum to drive the first and second cable drums in unison with one another.

A furniture hinge includes a body-side main element and a hinge cup, which is pivotally guided relative to the base element and which can be secured to a movable furniture part. The main element and the hinge cup are connected together via a lever mechanism. The furniture hinge is configured so that the lever mechanism has at least two levers, each of which is mounted on the hinge cup in a pivotal manner about a pivot axis that is aligned perpendicularly to the pivot axis of the hinge cup and each of which is provided with a toothing that meshes with another toothing arranged in the hinge cup.

The invention relates to a tensioning device (01) for tensioning a coil spring (02) that is supported on a main shaft (03) and at a fixed end is rotatably fixedly connected to a frame. The tensioning device (01) includes a gear drive (05), having a first gear element (06) that is axially displaceably guided on the main shaft (03) and rotatably fixedly connected to a free end of the coil spring (02), and having a second gear element (07) that is in drive engagement with the first gear element (06) in order to set the first gear element (06) in rotation about the main shaft (03). The tensioning device (01) also includes a retaining element (19) that holds the second gear element (11) in the position of drive engagement with the first gear element (06). Furthermore, the tensioning device (01) includes a drive element that is coupled to the second gear element (12) in order to set it in rotation. The gear drive is formed as a bevel gear transmission, wherein the first gear element (06) is formed as a bevel gear (06) and the second gear element (07) is formed as a bevel gear pinion (07), and wherein the rotational axes of the two gear elements (06, 07) extend perpendicularly to one another. The bevel gear (06) is integrally connected to a guide bushing (10), and has a central opening (09) through which the main shaft (03) extends, and has a cylindrical receiving section (12) in which the free end of the coil spring (02) is fastened.

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 driving mechanism for sliding a windowed frame guided by an outer frame. The sliding frame is attached to two vertical racks which engage with two pinions. The pinions are connected with a joint axle driven by a couple of engaged bevel gearwheels connected to a crank or to an electric motor. The joint axle with the pinions can be housed in a recess carved at the lower plank of a static window's frame. A compact motorized option in which each pinion is coupled with a gearbox and both gearboxes are driven by a central electric motor also can be housed entirely in the static window's recess. The motorized options also include: a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm.

Door with automatic opening and closing, including a door panel, a support column fixed to the door panel and suitable for rotating around its longitudinal axis in such a way to move the door panel between two end-of-travel positions, an electric motor for actuating the support column and a drive unit for transmitting the motion from the electric motor to the support column. The drive unit has a first drive element connected to the electric motor and a second drive element connected to the support column, wherein the drive unit includes a clutch unit that is interposed between the first drive element and the electric motor or between the second drive element and the support column. The door also has an automatic lock that completes the automation of the door by detectors.