Abstract:
A power operating system opens and closes a vehicle liftgate that is pivotally attached to an aft end of a vehicle roof for pivotal movement between and open position and a closed position about a generally horizontal hinge axis. The power operating system has a gas spring strut counterbalance system and at least one drive unit that includes a reversible electric motor, a spool driven by the electric motor, a flexible web that has one end attached to the spool and an opposite end attached to the liftgate, and a pusher member that is driven by the electric motor between a retracted position and an extended position. The pusher member engages the liftgate and rotates the liftgate part way to the open position. The liftgate is closed by winding the flexible web onto the spool.
Abstract:
An operating device for operating an automotive pivotal door has the following elements, which are an electric motor of reversible type; a speed reduction device driven by the motor and having an output part formed into an output gear; a rack member having a toothed side edge meshed with the output gear, so that upon energization of the motor, the rack member is moved axially; a motion transmitting member having one end pivotally connected to one end of the rack member and the other end connected to the pivotal door; and a structure which permits a swing movement of the rack member about an axis of the output gear when an external force is applied to the rack member in a direction to swing the same during the axial movement of the rack member. For appropriately controlling the operating device, a computer-aided control unit is employed.
Abstract:
A roll screen cassette for installation in a closure assembly having a frame for moveably retaining a closure member, the frame including a header, sill, and vertical jamb sections, at least one of the sections including a pocket formed within the interior thereof, the pocket having a first predetermined configuration defined by the interior of the section and for receipt of the roll screen, the roll screen comprising a pair of brackets from which the roll screen is pivotally supported, the pair of brackets having a second predetermined configuration compatible with the pocket of the frame section having the first predetermined configuration, the pair of brackets utilized for removeably retaining the roll screen within the pocket in use, the pair of brackets and roll screen being removeably held in position with respect to said frame only by the pocket having the first predetermined configuration and the pair of brackets having a second predetermined configuration compatible with the pocket and being located in the pocket in use, wherein the compatible shapes of the pair of brackets and the pocket when installed in the frame section cooperate to prevent the pair of brackets from rotating with respect to the pocket and the frame when the roll screen is let out or taken in use.
Abstract:
A continuous roll of screen which may be payed out from said roll by an installer or manufacturer to a required predetermined window size, or alternatively patio door size, said screen comprising a free end which allows the installer to pay the screen off of the roll upon which the screen is accumulated course upon course, one end of said screen being disposed at the end of the courses accumulated on the roll from which the screening is payed off and the other end being a free end, said screen having side edges and preferably being manufactured from preferably vinyl-coated fiberglass, the edges of said screen having affixed thereto a generally preferably T-shaped key manufactured from a flexible material, for example polyvinyl chloride, which is affixed preferably by radio frequency welding (or RF welding) with the edges and preferably each of the edges, and in one embodiment at least one edge of said screen, wherein the vinyl coating provided on the screen melds with the polyvinyl chloride key to form a resilient anchor for the screen device within any screen roller assembly.
Abstract:
A method is disclosed for selective alteration and control of door movement modes utilizing an apparatus that is primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation. Operation of the apparatus is controlled by programming of a related controller including non-volatile memory.
Abstract:
Modular, powered closure apparatus for installation as a unit into an opening of a building. The apparatus includes a rigid framework to be secured to the building and closure panels, one of which is affixed to the framework and the other of which is slidable in the framework. The framework includes a housing which accommodates an electric motor and transmission means extending between the motor and second closure panel to selectively move the second closure panel between open and closed positions.
Abstract:
A sliding door which is moveable back and forth by a stationary drive motornit, which has a drive pinion meshing with a gear rack attached to the door or the door's bottom rail, the gear rack being made of a series of adjacent rack segments extending in the sliding direction of the door and inserted in a retaining channel affixed to the door, the segments being manufactured as finished molded pieces and attached to each other with uniform tooth pitch along the rack, whereby the rack is low in cost, adaptable to various door displacement distances, and parts which are subject to heavy wear are readily replaceable.
Abstract:
A device is provided for opening and closing a door (5) in a doorway (7) of a structure (9) in a railway or bus car comprising an upper ejection assembly, a lower ejection assembly and a translation assembly, the upper ejection assembly further comprising a translation slide bar. The upper and lower ejection assemblies comprise rotation arms (1, 11) joined at one side to the fixed structure (9) by hinges (13) mounted through curved slots on respective brackets (15), and at the other side to a frame which is integral with the door (5). A slide bar (37) passes through the doorway (7) and is pivoted at one end to a movable end of the upper arm (1), and at the other end to a fixed bracket (47) on the other side of the doorway (7). After the door (5) has been separated from the doorway (7), the door is translated by means of a suitable rack (61) integral with the door, engaged by a gear wheel (59) which is driven through suitable gears (55, 57) by another rack (53) which in turn is driven by a rod (51) of a fluid actuated cylinder (49). According to one embodiment of the invention, the ejection assemblies are driven by at least one fluid pressure cylinder (20) the rod of which is secured to a rack (19) which engages a suitable gear wheel (21) keyed on a rotation shaft (23) of the ejection arms (1, 11) and causes their partial rotation, thus accomplishing the separation or ejection of the door (5) from the doorway (7) of the structure (9).
Abstract:
Uniform compression of a refrigerator door seal against the peripheral surface of the cabinet opening is realized by a pair of spaced hinge assemblies coupled for synchronized operation which, in automatic response to opening the door, shifts the hinge axis outwardly prior to permitting pivotal movement of the door about the hinge axis, and requires the door to be moved linearly inwardly while being maintained parallel to the plane of the cabinet opening during final closing of the door.
Abstract:
The present machine shed sliding door operator utilizes a gear and motor arrangement which rides back and forth with the machine shed sliding door when the sliding door is flopped back and forth against the shed by wind. The gear and motor arrangement slides in a stationary frame rigidly affixed in an upper corner of the door frame and continuously brings pressure to bear on a gear rack set in the door. A continuous meshing pressure on the gear rack by the gear arrangement is created by coil springs continuously pushing the gear arrangement against the gear rack.