Abstract:
A door wheel includes a casing approximately having a form of "", a climbing frame approximately having a form of isosceles triangle and a portion of which is rotatably fixed on the casing, a roller rotatably installed on the climbing frame, a wedge approximately having a form of right-angled triangle and the inclined surface of which is adjacent to the surface corresponding to the fixed end of the climbing frame and which can be rectilinearly moved in the casing, and a control screw which is rotatably installed in the casing to rectilinearly move the wedge and one end of which is coupled with the wedge. The free end of the climbing frame can be climbed together with the roller by moving the wedge through rotating the control screw.
Abstract:
A rigid corner connector for a door having a frame with stiles and rails seating a panel therein, includes a bracket having a generally planar body portion with perpendicular sidewalls defining a channel and having inwardly extending lips along an intermediate portion. An end wall extends between the sidewalls at one end thereof, and an end flange at the other end extending in the opposite direction and having tabs engaging the rail thereon. The sidewalls also have outwardly extending side flanges adjacent their ends, and the side flanges adjacent the end flange have a tab engageable in the end of the stile. The other side flange has a tab engageable in a slot in the wall of the stile. A roller mounting member is slidably seated in the bracket for sliding movement on the bracket and it transfers loads to the end wall. A roller is rotatably mounted on the mounting member, and a detent tab seated in a channel in the roller mounting member limits the movement of the mounting member on the bracket.
Abstract:
A power drive moves a movable closure between an open position and a closed position with respect to a portal defining a passage through a barrier. The power drive can include an elongated drive member connected to the movable closure and a ball nut drive assembly for selectively moving the drive member longitudinally to position the movable closure between the open position and the closed position with respect to the passage through the barrier. The barrier can define at least a portion of a stationary structure or a vehicle, where the passage allows access within the structure or the vehicle. The movable closure can include a sliding door, hatch, window, roof panel or the like. The elongated drive member can be a compound drive member having at least one gear or tooth-like member extending helically around in uniformly spaced turns about a core of the drive member to form a rigid or resilient screw-like portion capable of being driven by operable engagement with the recirculating ball nut drive assembly. A flexible portion, such as a push/pull cable can be attached to one end of the screw-like member to allow the power drive to move a movable closure along a curved or other non-linear path.
Abstract:
A screw and guide rail coupling assembly is for a garage door operator. The garage door operator has a motor-driven rotatable screw at least partially within a nonrotatable guide rail and a slide guided by the guide rail and movable longitudinally therealong by engagement with the screw and connectable to open and close the garage door. The screw is in at least first and second screw parts, and a screw coupling is adapted to interconnect adjacent ends of the first and second screw parts. The guide rail is in at least first and second guide parts, and a guide coupling adapted to interconnect adjacent ends of the first and second guide parts. The screw coupling is longitudinally spaced or offset from the guide coupling wherein the screw coupling is completely contained and supported within one of said first and second guide parts. The offset provides a significant increase in the maximum torque of the screw and guide rail coupling assembly.
Abstract:
An automatic door/window closing device has a center shaft provided with V-shaped spiral channels to a base such as its surface and secured to a base such as the ground, a floating piston which forms a screw pair with the shaft by engagement of steel balls in the spiral channels, a housing with a flange which is secured to the door or window, a spring for providing the force to automatically close the door, and a cover. This device has a simple structure and is very light and which permits a door to be opened in both directions. After opening, the door will automatically close, and it can be also be damped for slowly closing the door. The door will rest when it opens to 90.degree..
Abstract:
The invention falls within the technical field of windows closed by sliding sashes, that for the purpose are provided with grooved wheels adapted to run along rails integral with a lower crosspiece of the fixed frame forming, together with the sashes, said window.The wheel is mounted on a pivot which is supported by means connected to a box-shaped element and designed for enabling a vertical displacement of said post. Provision is also made for means adapted to readily adjust the position of the pivot relative to the box-shaped element which is disposed within the post of the sliding sash.
Abstract:
A garage door operator is disclosed which has a motor-driven screw nearly enclosed within a guide, and a partial nut is guided by this guide means and moved longitudinally therealong by engagement with the rotating screw. The partial nut is adapted to be connected to a garage door to open and close the same. In order to shorten the package in which the garage door opener is shipped, the screw and guide means are in two or more parts and adapted to be coupled together to make an operative long screw and an operative long guide means. The screw parts, instead of being connected together at the factory by a double pivot connection, are shipped to the customer in a disconnected condition but one in which the coupling readily may be connected in a proper phase to avoid mismatch of the threads. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
Abstract:
An adjustable supporting roller device has a roller bracket pivoted on a mounting bracket to be attached to an object to be supported, and a novel combination lead screw and follower assembly for releasibly securing the roller bracket in retracted position during handling and shipment of the object and adjustably extending the roller bracket for use.
Abstract:
Wheels for movement along a floor-mounted track at the bottom of a sliding door are shown supported within U-shaped members which are pivotally coupled to brackets secured to the lower edge of the door. The wheels are prevented from being dislodged from the track via retainer elements, each of which is a channel element having an elongated opening in its web and inturned flange terminations at the edges of its walls. An integral plate extends from one side of the channel and is pivotally mounted on the pin or stub shaft extending through the wheel and U-shaped member. The retainer element is significantly longer than the diameter of the wheel, and the flange terminations are snapped over the track and in interference relation with lips of the track. The wheel at its lower portion extends through the opening in the retainer element and rides on the track. When the door is tilted or rocked, the flange terminations remain interlocked with the lips of the track, thereby keeping the wheel on the track while permitting the U-shaped member to pivot on the wheel and the bracket to pivot on the U-shaped member in accommodating the relatively non-parallel relations of the door and track.
Abstract:
The disclosure herein describes a sliding glass panel structure which comprises a double-glazed hermetically sealed unit, a pair of vertically disposed reinforcing members secured to the two opposite sides of the unit and a pair of adjustable roller support assemblies, each mounted at the lower end of each reinforcing member. A surrounding frame is no longer required; hence, the sliding glass panel of the invention becomes a structural self-contained unit which is sufficiently rigid to maintain the mechanical stability expected of sliding glass panels.