A resin back door for a vehicle includes a resin inner panel, a resin lower outer panel, a metal left reinforcing member, and a damper stay bracket. The metal left reinforcing member is disposed in a hollow space defined by the inner panel and the lower outer panel, and is fixed to the inner panel with an adhesive leaving a gap. The damper stay bracket is attached on an outer side of the inner panel in a vehicle width direction. In the resin back door for a vehicle, the damper stay bracket is fastened to the left reinforcing member across a collar having one end inserted into a hole provided in the inner panel.

A check and release mechanism for holding a door in a desired opened position against the force of a closing cylinder which is separate but alongside a door closing actuator which acts to close the door upon its release, the catch and release mechanism includes a catch and release operator rod separate from an actuator operator rod and parallel thereto moved, the door catch and release operating rod has a latch element pivotally mounted to one side of the catch and release operator rod and is moved along a guide slot in a catch and release mechanism case, by continued opening movement of the door into an enlarged engagement chamber in the case, and the leading end of the latch element engages a first fixed feature therein at the approximate location where it is desired to hold the door open. That engagement causes a slight tilting of the latch element and stops further opening advance of the door and operating rod. A slight retraction of the door and the catch and release operating rod causes a trailing end of the tilted latch element to engage a second fixed feature in the chamber which causes the latch element to tilt further in the same direction preventing further closing movement of the door. The engagement of the latch element with the second fixed feature is released by manually moving the door back in the opening direction, causing one side of the tilted latch element to engage the first fixed feature to tilt the latch element further, and upon release the door again moves in the closing direction and the opposite side of the latch element then contacts the second fixed feature be pivoted so as to again be in alignment with the guide slot, allowing the door to close with the latch element advancing down the guide slot.

To provide an opening and closing device for opening and closing body having a rotation torque controlling module and a torque peak adjusting module, solution was sought by an opened and closed body and the opening and closing body which comprises an attaching part, an opening and closing part rotatably attached to the attaching part via a hinge shaft, a rotation torque controlling module for controlling a rotation torque of the opening and closing part, a torque peak adjusting module for adjusting a torque peak of the opening and closing part at the time of its opening and closing movement.

An exemplary modular hold-open device is configured for use with a door closer comprising a body, a pinion rotatably mounted to the body, and an armature connected with the pinion. The modular hold-open device is configured to be mounted to the door closer, to selectively prevent rotation of the pinion by exerting on the pinion a resistive torque in a door-opening direction, and to cease exerting the resistive torque in response to a door-closing torque on the pinion exceeding a threshold torque to thereby permit rotation of the pinion in the door-closing direction.

An automatic door stopping-closing device comprises a cylinder with a connecting rod, one end of which is connected to a door; a bracket assembly on the door frame, comprising a hook connected with the other end of the rod, a movable lug cooperated with the hook, and a pull rod cooperated with the movable lug, wherein the pull rod and the hook can be engaged or disengaged. After the door is opened, the door can be kept open securely through the cooperation between the hook and the movable lug; and the door can be closed automatically by a slight push, through the cooperation between two of the hook, the movable lug and the pull rod. The automatic door stopping-closing device holds the door open without external force after the door is opened, and closes the door automatically after a slight push.

A hidden closing door system comprising a rectangular coupling base, a traction axle, a closing control valve, an opening control valve, an adjustment valve, a driving spring, a shock absorber closing piston, a centering nut axle, a gum lock, a metal bush, a traction axle, a traction arm, an opening break, and a fixative screw.

An automatic door stopping-closing device comprises a cylinder with a connecting rod, one end of which is connected to a door; a bracket assembly on the door frame, comprising a hook connected with the other end of the rod, a movable lug cooperated with the hook, and a pull rod cooperated with the movable lug, wherein the pull rod and the hook can be engaged or disengaged. After the door is opened, the door can be kept open securely through the cooperation between the hook and the movable lug; and the door can be closed automatically by a slight push, through the cooperation between two of the hook, the movable lug and the pull rod. The automatic door stopping-closing device holds the door open without external force after the door is opened, and closes the door automatically after a slight push.

A door closing device for installation between a door and a door jamb includes a closer rod having an end configured to be fixed to the door jamb, the closer rod being movable between a withdrawn position in which the door is closed and an extended position in which the door is opened. The device also has a hold-open mechanism that includes a driver fixed to the closer rod and movable between a release position that permits movement of the closer rod, and a hold position that holds the closer rod in the extended position, and a resilient retainer configured to capture the driver in the hold position. The driver is separated from the retainer by a disengagement force applied to the retainer.

A bearing arrangement for a door, in particular for refrigerators or freezers, comprises a bearing pin for rotatably bearing the door, a closing device by means of which the door can be moved over a certain pivoting region in the closing direction through the force of a force accumulator, and a damper for damping a pivoting movement of the door over at least one pivoting region, and the closing device and the damper are oriented in a substantially perpendicular plane with respect to the axis of rotation of the bearing pin, wherein, to move the closing device, a first curved guide which can be moved by the bearing pin is provided and, to move the damper, a second curved guide which can be moved by the bearing pin is provided. As a result, the bearing arrangement can have a particularly compact design, the bearing arrangement being used in particular in a refrigerator or freezer.

A stopper device includes: a guide rail in which a sliding portion is formed inside in order that transfer apparatus and fixing apparatus are positioned and slide and a side cap is coupled at both ends in order that the transfer apparatus and fixing apparatus positioned at the sliding portion do not deviate, the transfer apparatus in which an arm connection portion to which one side of an arm connected to the door closer is connected and a roller to which a clip of the fixing apparatus is connected and fixed are formed and which slides along the arm rotating by opening and closing of the door.