Provided is a motorized drive system for actuating a door, including at least one gear having a spindle axis and a drive axis, wherein the gear assembly is designed to convert a rotational movement about the drive axis into a rotational movement about the spindle axis; at least one spindle assembly having a threaded spindle which can be rotated about a spindle axis, wherein the threaded spindle is mechanically coupled to a part of the gear assembly that can be rotated about the spindle axis, and at least one drive assembly for driving the threaded spindle with a drive shaft, wherein the drive shaft is mechanically coupled to a part of the gear assembly that can be rotated about the drive axis.

A vehicle door opening and closing apparatus includes a rail configured to be mounted on a vehicle body, a roller unit configured to be mounted on a vehicle door, move along the rail, and allow the vehicle door to open and close in a sliding mode and a swing mode, a center rail configured to extend from a rear edge of a door aperture of the vehicle body, a center roller unit configured to be guided along the center rail, and a flap mechanism configured to prevent the center roller unit from being separated from the center rail in the sliding mode, and to allow the center roller unit to be released from the center rail in the swing mode.

A structure for assisting with opening and closing of a lower door includes a lower door having an upper end configured to be rotated open with respect to a bottom surface of a vehicle body, and a rotary unit configured to be fixed to the bottom surface of the vehicle body and configured to rotate in opposite directions to assist with opening and closing of the lower door.

An apparatus includes a control unit. The control unit is configured to control an automatic flap and/or door. The flap and/or door is automatically transferrable from an open position into a closed position by at least one actuator. The flap and/or door is configured to press against a seal when in the closed position. In relation to a closing operation of the flap and/or door, the control unit is configured to determine time information in relation to an open state time duration during which the flap and/or door was in the open position before the closing operation. In relation to a closing operation of the flap and/or door, the control unit is also configured to operate the at least one actuator configured for the closing operation as a function of the time information.

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.

A refrigerator includes: a cabinet having a storage space; a hinge bracket coupled to the cabinet; a door which is rotatably coupled to a shaft provided at the hinge bracket, and which open/close the storage space; and an automatic closing device which is provided at the door at a position spaced from the rotational center line of the door, and which operates together with the hinge bracket during closing of the door, so that the door automatically closes, where the automatic closing device includes: a lever that rotates around a rotational center line spaced from the rotational center line of the door; an elastic member connected to the lever; and a body which is provided at the door and which rotatably supports the lever.

A hinge having a hinge cup, an articulation mechanism and a hinge arm, wherein the hinge cup is connected to the hinge arm in a pivotable manner via the articulation mechanism. The articulation mechanism includes first and second articulated levers attached to the hinge cup and to the hinge arm. The first articulated lever has a first end connected to the hinge cup in a pivotable manner via a first bearing element and has a second end connected to the hinge arm in a pivotable manner via a second bearing element. The second articulated lever has a first end connected to the hinge cup in a pivotable manner via a fourth bearing element and has a second element connected to the hinge arm in a pivotable manner via a third bearing element.

A hinge including: a first leaf assembly accommodating a portion of a first panel having a first cut-out section, the first leaf assembly including a first insert component which is tight fittingly receivable within the first cut-out section; a second leaf assembly, hingedly coupled to the first leaf assembly, for accommodating a portion of a second panel having a second cut-out section; one or more biasing components to bias the hinge toward a closed position; and a dampener to slow movement of the first and second leaf assemblies to the closed position, a first portion of the dampener is located within the first insert component and a second portion is configured to at least partially retract within the first insert component when coming into contact with the second leaf assembly during movement, a second portion of the dampener extends and retracts along an axis coplanar with the first panel.

A vehicle door system includes a vehicle door and electrically-powered linear and rotary actuators. The vehicle door system also includes a pinch sensor. Upon receiving an open door command, a controller actuates the linear actuator and then actuates the rotary actuator to open the door. The controller also actuates the linear actuator to prevent closing of the door if the pinch-sensor detects an object in a door opening. The controller actuates the rotary actuator to close the door upon receiving a close door command.

A sensing edge is made in segments that can be used to determine at which point along the edge an obstruction occurred. Data collected can be used to determine a point in a process that the fault occurred by addressing each segment individually or as a whole. A programmable controller can be operatively coupled to the sensing edge, and can include logic to control the door and/or other equipment using data collected from the sensing edge.