According to particular embodiments, a door operating system comprises: a rotating handle removably coupled to a first gear; the first gear coupled to a second gear; the second gear removably coupled to a worm gear; and the worm gear coupled to a rotating plate. Rotation of the handle rotates the first gear which rotates the second gear which rotates the worm gear which rotates the rotating plate to cause the door to open or close. The first gear is swappable with the second gear to modify a gear ratio of the door operating system.

The present invention discloses a left-right door opening mechanism and a refrigerator. The left-right door opening mechanism comprises first modules symmetrically arranged on the left side and the right side of a door body, and second modules symmetrically arranged on the left side and the right side of a refrigerator body. Each first module comprises a mounting bottom plate and gears rotatable on the mounting bottom plate. Each first module is provided with an opening. Each second module comprises a rack in transmission with the corresponding gear, a hinge used for fixing the rack, a rotating shaft mounted in cooperation with the hinge, and a guiding slider fixedly located below the hinge. When the left-right door opening mechanism is in a locked state, the rotating shafts are accommodated in the openings.

A pivoting fitting for pivoting a flap hinged on a furniture body, comprising an energy accumulator fastened to a connecting part which can be connected to a body wall, and a lever arrangement which is operatively connected to the energy accumulator and has at least one articulated lever, is configured such that the energy accumulator is connected to a control element comprising a cam disc which is fixed but rotatable with respect to the connecting part, which control element is connected in a movement-dependent manner to the articulated lever which is held on the one side on the connecting part and can be held on the other side on the flap, and is rotated when the articulated lever is pivoted, wherein in one pivoted end position, the energy accumulator is clamped, and in the other end position is unclamped relative thereto, and wherein the cam disc has a control contour with varying radius of curvature, on which cam disc the energy accumulator is held.

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 system for transferring torque with zero lash from a driver to a driven object is provided. The system includes a shaft disposed about a rotational axis and a hub defining a bore that receives the shaft. The shaft and hub are each configured for coupling to one of the driver and driven object. The shaft defines a flat on a radially outer surface and the hub defines a flat on a radially inner surface opposing the flat in the shaft. In one embodiment, the shaft includes a threaded bore and the hub includes an aligned through bore. Rotation of a threaded fastener in the bores draws the flat into engagement. In another embodiment, the hub includes a threaded through bore. Rotation of a fastener extending through the bore and engaging the shaft diametrically opposite the flats urges the flats into engagement.

A motor vehicle is disclosed having a safety system that includes an electronic controller controlling an electronically controlled mechanism in response to inputs from a number of rear parking sensors to prevent movement of a rear closure of the motor vehicle in a closing direction when more than one object is sensed to be within a rear protection zone and the rear closure member is in a fully open position.

Dual pivoting laterally translating hinges that attach between a stationary first substrate such as a vehicle body, and a rotating second substrate such as a vehicle door, and extend laterally when the second substrate is rotated. In some examples, the hinges include a knuckle and leadscrew mechanism that changes the hinge geometry when the second substrate is rotated, causing the leadscrew to rotate by either a set of gears or a rack and pinion. In some further examples, the hinges include a jackscrew that changes length as the second substrate is rotated, causing the hinge to extent laterally.

A vehicular closure system includes a cover panel disposed at a charge port of a vehicle and movable between a closed position, where the cover panel conceals the charge port, and an opened position. An actuator is operable to move the cover panel between the closed and opened positions. A motor of the actuator rotates an output gear about an axis of rotation. An output element is connected to the cover panel and rotates about the axis of rotation as the cover panel moves. When the motor of the actuator is operated to move the cover panel, the output element rotates in tandem with the output gear. When the cover panel is manually moved, the output element rotates about the axis of rotation relative to the output gear.

A door system having a linkage assembly with a drive arm and an attendant arm coupled at the ends through a gear joint. The gear joint has drive teeth on an end of the drive arm and attendant teeth on an end of the attendant arm. The drive arm is coupled to a motor in the door system that is coupled to a door, or a door frame or a wall. The attendant arm is coupled to the opposite of the door, or the door frame or the wall to which the door system is coupled. When the door system is installed on the push side or the pull side of the door the drive arm and the attendant arm are parallel with the door and the upper door frame. During operation the motor transfers the torque from the motor through the gear joint to open the door.

To provide a hinge device with an actuator unit such as a rotation dumper or the like which may omit engraving and may make appearance good by narrowing a joint. By a hinge device 3, a second member 2 is connected to a first member rotatably. A first cooperation part 11 of the hinge device 3 is rotatably fixed to the first member 1. A connection member 30 is connected to the first cooperation part 11 rotatably about a first axis line L1 and then is fixed rotatably to the second member 2. A second cooperation part 22 is connected to a connection member 30 rotatably about a second axis line L2 and then is made to cooperate with the first cooperation part 11. A first actuator 41 of an actuator unit 40 such as a rotation dumper or the like is fixed rotatably to the second cooperation part 22 and then a second actuator 42 is fixed rotatably to the second member 2. When the second member 2 is made to rotate, the second cooperation part 22 rotates about the first axis line L1 with respect to the first cooperation part 11 and rotates about the second axis line L2 with respect to the second actuator 42.