Abstract:
Apparatus for automatically closing the deck lid of an automotive vehicle wherein the deck lid is manually moveable between open and closed positions and carries a latch operable to latch the lid closed and release the lid for opening movement. The apparatus of this invention is advantageous because it will not interfere with manual opening and closing of the lid. It includes a drive mechanism connected to the deck lid and operable when actuated from a remote location such as a switch inside the passenger compartment of the vehicle, to move the deck lid downwardly to a nearly closed position. A moveable striker inside the trunk compartment is engageable with the latch in the nearly closed position of the deck and is operable to pull the deck lid downwardly to the closed position. In one embodiment of the invention the deck lid is also automatically opened by reversing the sequence of operation for closing in response to switch actuation to a remote location such as within the passenger compartment of the vehicle.
Abstract:
A horizontally sliding door section with a floor-engaging wheel driven from a motor. The wheel and its drive are located within the front-to-back extent of the door section in a housing hinged at one end on the bottom of the frame of the door section. A lead screw operated by a manual crank can be used to pivot the housing up about its hinge to raise the wheel from engagement with the floor of the building. The housing for the wheel has a removable front wall which carries the front bearing for the axle of the wheel, so that removal of this front wall disengages this bearing from the wheel axle.
Abstract:
A door operator mechanism which has a motive power source and drive and a manual drive for use with a manual source of power. A mechanism is included which by the simple expedient of pulling a chain or cable disconnects the power source and associated driver and connects the manual drive for use of a manual source of power. Release of the cable causes the reverse.
Abstract:
Disclosed is a lost motion coupling for connecting a propulsion device with a load to be moved. The coupling permits the propulsion device to generate significant momentum before applying driving force to the load. In the embodiment described, a traveling nut is driven in translational motion along a rotatable screw. The traveling nut is included within the lost motion coupling between the screw and a slide gate. Significant rotational momentum may be obtained by the screw before the lost motion coupling applies driving force to the slide gate. The slide gate then experiences an abrupt application of a substantial driving force to overcome forces retarding motion of the slide gate.
Abstract:
An automatic door opening and shutting device is disclosed. The present device comprises a support having an upper tube movable up and down toward a fixed lower tube, a driving source mounted on the upper tube of the support, a friction drive means for carrying out a friction drive of the door by transmitting power of the driving source to the door and a detecting means for detecting either person or vehicle coming in and out of the door, wherein a clockwise an anticlockwise actuation of or stop of the friction drive means can be controlled automatically by signals transmitted from the detecting means or the like.
Abstract:
A sliding door is closed by a reversible power-driven slide, movable horizontally and having a hook normally coupled to a detent on the door for causing the door to move with the slide in a closing direction. A coupling hook pivoted on the slide, and spring loaded toward operative position, is retracted or uncoupled from the detent at the conclusion of the door closing movement by the engagement of a retracting lever arm on the hook with a fixed stop, thus releasing the door from the slide so that it may be subsequently manually opened. For opening of the door by remote control, a return or reverse movement of the slide, and its abutting engagement with the detent, transmits opening movement to the door while, at the same time, reengaging the hook for use in subsequently closing the door by remote control.