A vehicle trunk opening and closing control device includes a bracket secured to an inner panel of a trunk, a hinge arm rotatably hinged at a first side thereof to the bracket and connected at a second side thereof to a trunk lid, a sliding rail disposed adjacent to one side of the hinge arm and coupled to the hinge arm, and a torsion bar, which is fixed in position by being caught in a slot formed in the bracket and is configured to rotate the hinge arm by applying tension to the sliding rail through contact with the sliding rail.

A refrigerator includes a cabinet, a door, and a door opening device. The door opening device includes a motor and a pushing member configured to be withdrawn out by the motor to open the door. The pushing member includes a first rack configured to be driven by the motor and to push one of the cabinet or the door, and a second rack configured to be driven by the motor and slidably coupled to the first rack in which the second rack at least partially overlaps with the first rack. The first rack is configured to move relative to the second rack in a first direction to open the door to a first angle, and to move together with the second rack in the first direction to move the door to a second angle greater than the first angle.

The motorized drive according to the invention application is configured to open and/or close a wing of a barrier such as a door, main door, gate or swing shutter, a wall or sliding partition or other sliding wing. The motorized drive comprises includes a motor and a first reduction unit through which the motor can open or close the wing. The reduction unit comprises includes a first and a second toothed profile engaging together, thus realizing a gear with a variable transmission ratio depending on the angular and/or linear position of at least one of the two toothed profiles. At least one of the first and of the second toothed profile forms at least one toothed section having a pitch profile which is substantially non-circular or not formed by a simple arc of a circle or a straight line.

The motorized drive according to the application is particularly suitable for auxiliary or emergency drives and is configured to open or close a wing of a barrier such as a door. The motorized drive includes a motor and a reduction unit through which the motor can open or close the wing, an auxiliary motor including a helical spring which is able to absorb mechanical energy during the opening of the wing and release it during the closing of the same, a reduction unit connecting the auxiliary motor to the wing. A first and a second toothed profile realize a gear with a variable transmission ratio. The first and/or the second toothed profile form at least one toothing having a pitch profile which is substantially non-circular or not formed by a simple arc of a circle or a straight line.

The present disclosure is directed to overhead door assemblies and operating systems. Disclosed herein is a drive drum that is compatible across a variety of overhead door types, including, for example, standard lift doors, vertical lift doors, and high lift doors. The drive drum of the present disclosure comprises a first cable groove section and a second cable groove section, opposite the first cable groove section, wherein at least one of the first cable groove section or the second cable groove section is in a non-linear graduated arrangement.

An emergency door closing device that can be installed upon existing doors and hinges to automatically close doors in the response to smoke and fire. The improvements incorporated therein include a hinge cam pivot member that attaches to an existing hinge member of a door and produces a moment force about the existing hinge member allowing a reduced force necessary to pivot the door into a closed position. Further, a novel spring, cam, and lever system is incorporated to activate the moment force to close the door.

The present invention relates to a refrigerator that allows a user to easily open a door thereof. A refrigerator, according to one embodiment of the present invention, may comprise: a cabinet having a storage compartment; left and right doors for opening and closing the storage compartment from the left and right; a door opening module provided to open the left and right doors; and having a single motor provided to rotate forward and backward; and a control unit for controlling forward and backward driving of the single motor, wherein the door opening module comprises: left and right racks provided to be moved by driving of the single motor so as to respectively open the left and right doors; a power transmission device for selectively transmitting a driving force of the single motor to the left and 4right racks; and a single switch provided to be turned on/off in conjunction with the power transmission device, and wherein the control unit detects a current position of the left and right racks through the switching-on/off of the single switch, and controls the forward and backward driving and stopping of the single motor.

An apparatus comprises a base plate configured to be coupled to a door, the door configured to be positioned in an open position and a closed position; a closing mechanism coupled to the base plate and configured to be coupled to a hinge of the door and having an unprimed state and a primed state, the closing mechanism configured to be transitioned between the unprimed state and the primed state by a user; wherein in the unprimed state the closing mechanism is decoupled from operation of the door; and in the primed state the closing mechanism is configured to move the door into the closed position responsive to receipt of a signal, and the closing mechanism is configured to allow movement of the door between the open position and the closed position in absence of the signal.

An assembly for controlling the position of air inlets of an enclosure including an actuation rod which moves laterally and is positioned above and parallel with the air inlets, one or more actuation cables, where the first end of each actuation cable is attached to the actuation rod and the second end of each cable is attached to one or more of the air inlets and lateral movement of the actuation rod causes vertical movement of the actuation cables and attached air inlets.

An actuating arm drive for a pivotably mounted actuating arm includes a pivotably mounted main lever, a force accumulator for exerting a force for supporting the opening and/or closing movement of the actuating arm drive on the main lever at a force introduction point, and a setting device for setting the force introduction point on the main lever. The force is introduced to the main lever at the force introduction point via a force introduction element which is loaded by the force accumulator via levers, and the setting device is designed to move the force introduction element along a bearing contour formed on the main lever. In each pivoting position of the main lever between the open and closed position of the actuating arm drive, and in each setting of the setting device, the loaded force introduction element is forced along the bearing contour in the same direction.