Abstract:
A heavy door open and close system is provided using a pneumatic cylinder utilizing on board vehicle air. The system includes a hydraulic cylinder which is adapted to lock the door in either an open or closed position. A manual activation system uses a hydraulic valve to unlock the hydraulic cylinder and a pneumatic valve to actuate the pneumatic cylinder to open or close the door. An emergency pneumatic actuation system is also provided for use when the system loses the use of on board air of the vehicle.
Abstract:
A door opening/closing apparatus automatically opens and closes a door, and the door is supported by a vehicle body such that the door can open and close in a vertical direction. A plurality of link members connect the door and the vehicle body, and at least one of the link members is driven by the drive motor. At least one of the link members is provided with a drive motor, and a connection shaft connects the link member having the drive motor and another link member that is adjacent to the former link member. The connection shaft is rotated by the drive motor.
Abstract:
A refrigerator including a door opening device mounted in a grip part defined in any one of an upper surface and lower surface of a door and a side surface of the door opposite to a hinge shaft of the door. The door opening device is covered with a shield provided at a front surface of the door.
Abstract:
An opening and closing member control apparatus for a vehicle includes a driving device adapted to drive an opening and closing member to open and close an opening portion formed at a vehicle body, a sensor provided at a connecting portion connecting the vehicle body with the opening and closing member, the sensor detecting an opening operation and a closing operation of the opening and closing member, and a drive controlling device controlling the driving device to drive the opening and closing member to open or close the opening portion by determining the opening operation or the closing operation of the opening and closing member based on a detection value of the sensor.
Abstract:
A velocity reduction system for use in retractable screen door installations. A pneumatic cylinder is located within a moveable housing that is used to capture the leading edge of the screen material. The pneumatic cylinder contains a moveable weight that is fastened to the screen doorframe using a cable. Incorporated within the weight is a check valve that restricts the passage of air when the weight is being pulled in an upward direction, associated with the opening of the screen door. The size of an aperture at the lower end of the pneumatic cylinder, along with the strength of the retracting spring that rewinds the screen material, control the velocity of air entering the pneumatic cylinder and therefore the opening speed of the screen door.
Abstract:
A door closer that integrally incorporates a door-opening-assistance device, and that therefore eliminates the need for unnecessary troublesome adjustment between parts, and whose number of parts is reduced, making said door closer compact. The door closer 1 includes a closer 1a that includes a pinion 5 that rotates in the forward and reverse directions when the door is opened or closed, respectively. A cylinder 9 is meshed with the pinion 5 and moves forward and backward. A closing spring 14 energizes the door in the closing direction via the cylinder 9and the pinion 5. A opening-assistance device 1b that includes an opening spring 22 that stores an opening force in the door-opening direction due to the movement of the cylinder 9 when the door is opened. Locking mechanisms 27, 28, and 29, that—when the door is opened—lock the opening spring 22 under an opening-force-storing condition. An unlocking mechanisms 23 and 24 that—when the door is closed—unlock the locking mechanisms. The closer 11a and the door-opening-assistance device 1b are inside the same case 6 and interlinked by the opening of the door.
Abstract:
An emergency door opening actuator includes electrical switches that are at least one of normally open and normally closed. The electrical switches may be connected accordingly in parallel or in series to terminals of an overhead door operator. The terminals may correspond to a push button circuit, an obstruction sensing circuit, an alarm system circuit, and/or a door opening circuit. The emergency door opening actuator may take advantage of a protocol in the operator to cause the overhead door to open during an emergency condition to facilitate egress. Likewise, the emergency door opening actuator may cause that the overhead door cannot close by signaling the protocol in a predetermined way when the switches are actuated by an emergency condition. The electrical switches may be mechanically actuated when at least one fusible link is broken. The emergency door opening actuator may include an automatic mechanical stop and/or a test release mechanism.
Abstract:
A power closing assembly operates a closure panel hingedly secured to a motor vehicle. The power closing assembly includes an actuator mounted to the motor vehicle, a movable striker also mounted to the motor vehicle to receive the closure panel's latch, and a rotary power cable connecting therebetween. The actuator has a closure cable on a spooling drum extending to the closure panel for closing from an open position when the actuator operates. The movable striker moves between a nominal inboard position and an outboard position. A rotary power cable connects between a provided output on the actuator and an input on the striker so that the striker's movement is powered and synchronized by the actuator. With the closure panel open, the actuator begins a closing cycle by driving in a direction to spool in the closure cable extending to the closure panel. The actuator's direction, using the rotary power cable, simultaneously causes the striker to move outboard. When the closure panel is pulled completely closed, the striker has also moved to its outboard position whereupon the closure panel's latch readily receives and engages the striker. Upon engagement, the actuator reverses its drive direction. This reverse direction causes both the actuator to reset with respect to its closure cable spooling drum and the rotary power cable to turn in the other direction causing the striker to return to its inboard position and fully close the closure panel against its seal load.
Abstract:
An opening and closing support mechanism includes: a main body; an opening and closing member; and a support member includes: a first joint support portion that curves to deform when the opening and closing member is closed, and extends straight when the opening and closing member is opened; and a projection portion that projects to an opposite side of a curving side of the first joint support portion at a side of either one end portion or the other end portion of first joint support portion when the opening and closing member is closed, and is elastically deformed in a direction of approaching the first joint support portion while pressed against a portion of the main body or opening and closing member when the opening and closing member is opened, and the support member being fitted between the main body and the opening and closing member.
Abstract:
A system for emergency opening of vehicle doors, especially to open from inside the door(s) blocked or jammed during a traffic accident, consisting of pneumatic servomotor or servomotors (1) as the door-opening executing element. The servomotor (1) supplied from pyrotechnical charge/cartridge (2) or pyrotechnical charges or cartridges (2) and (3), through the firing unit (8) controlled by a set of sensors (5), (6), and (7), of the first firing stage or by pressure sensor (9) of the second stage of firing, whereas the servomotor emptying is executed by an electrovalve (10).