Abstract:
A sliding door in a van is mounted on tracks for sliding movement between open and closed positions. At the closed position a weather strip is compressed and a door latch is latched. A cable is attached to the door and routed through the vehicle body via pulleys so that pulling the first cable end opens the door and pulling the second cable end closes the door. A motorized drive mechanism includes first and second reels mounted concentrically and having the cable ends wrapped respectively about the reels in opposite directions. A motor drives in one direction rotating the first reel to open the door and is reversible to rotate the second reel to close the door. Each of the reels has a large diameter portion for winding the cable to provide relatively high speed and low force door movement over the greatest portion of travel and a small diameter portion for winding the cable to provide relatively low speed and high force movement of the door during the lesser portion of travel of the door closest to the closed position. The reels have cable set grooves to receive the cable and a spiral ramp groove to connect the large and small diameter portions. A tension retaining spring acts between the two reels to always maintain the cable under tension.
Abstract:
A vertical curtain panel assembly, to be used to cover windows, sliding glass doors, etc. with a plurality of large, wide, highly decorative panels. The panel assembly includes a plurality of interconnectable frame units having a plurality of channels with movable carriers positioned therein, and disposed such that by utilizing a single draw string attached to a single carrier, the plurality of carriers having decorative panels extending therefrom, may be readily moved between an opened position, wherein all the panels are concealed behind an outermost fixed panel, and a closed window covering position, wherein each panel is exposed and covers a designated area.
Abstract:
One or more spring lock devices are included at the inner sides of a conventional garage door positioned to engage with the side door frame. The spring locks are actuated to the open position by operative connection, usually through tension lines to a garage door drive mechanism, which is connected to the garage door through a lost motion mechanism so that initial movement of the drive mechanism moves the spring lock devices and opens them before the garage door mechanism moves the garage door. For closing, the spring lock devices can be of the wedge striker type which will close and lock with the closing motion of the garage door or of a straight pin type, in which case the door is adjusted so that its balance mechanisms always biases the door toward the closed position when the door is near its closed position.
Abstract:
A door operator for a slide door that is slidingly supported relative to a door opening in a side panel of a vehicle body is disclosed. The door is supported adjacent its forward end on at least one forward guide member and is supported adjacent its rear end on a rear guide member. The guide members guide the door through (i) an initial closing movement generally parallel to the side panel, (ii) a final closing movement generally parallel to the side panel, (iii) at least a portion of its final closing movement generally toward the plane of the door opening, and (iv) at least a portion of its initial opening movement generally away from the plane of the door opening. The door operator comprises means including a first cable member coupled to the rear end of the door and a second cable member coupled to the forward end of the door for driving the door along the guide members to thereby move the door through its initial and final opening and closing movements. When used as part of a system, the powered sliding door operating system also includes a clamping means including a rotatable striker plate mounted on the vehicle body and having an eccentrically mounted striker pin thereon engagable by a latch bolt member on the door for clamping the door to the vehicle body with the door in a finally closed position in the door opening.
Abstract:
A refrigerator door assembly comprising a plurality of insulated doors each mounted for pivotal swinging movement about a vertical axis. The insulated doors each comprise a plurality of glass panes disposed in side-by-side relation with a structural frame at least partially interposed and contained between the glass panes for maintaining the panes in parallel relation with the sealed air space therebetween and for supporting the door for swinging opening and closing movement, without the necessity for a separate outer load carrying support frame as conventionally required. Each door has a trim portion formed of a structural foam that has insulating qualities so as to eliminate the necessity for electrical heating of the door for condensation control, while at the same time enhancing the structural rigidity of the door assembly.
Abstract:
A swing-and-slide door for vehicles, especially railroad passenger vehicles. The leaf is suspended at the top on a positioning bushing on a supporting rail that extends over the total width of the door. At the bottom of the door a horizontal positioning rail is secured to the leaf. A positioning section slides back and forth mechanically secured in the positioning rail. The securing rail and positioning section are secured to the studs of two cranks. The cranks are fastened vertically separated to the vehicle superstructure by means of horizontal shaft studs and cranks studs that extend parallel to the direction of displacement, are connected by a connecting section, and are driven by a pneumatic cylinder. The door is opened in a sequence of two stages. The leaf is first displaced out of the closed position into a ready-to-slide position and then slid horizontally to the side in that position. The bottom and top of the leaf are mechanically secured during both stages.
Abstract:
A rotational-locking member such as an endless screw for actuating a sliding door by means of a nut is locked in position by rotational displacement of the nut and is unlocked by means of a device comprising a pulley coupled to the endless screw and rigidly fixed to a clutch-disk. A second clutch-disk slidably mounted on a square sleeve of a bevel-pinion can be rotated by means of a pair of bevel-pinions and a lever. A lug of the second disk cooperates with a helical groove of a stationary cam in order to subject the disk to a helical movement, the rotational motion component of which is imparted to the endless screw after engagement of the disks in order to unlock the screw.
Abstract:
Operators for sliding gates including a solenoid-operated detent for engaging a gear of the gate drive motor shaft speed reducer and locking the associated gate, and a key-operated cam for disengaging the detent from the gear.
Abstract:
A latching device for a security gate of the type used at the entrance of subterranean garages for apartments or condominiums or secured storage rental areas is disclosed which is mechanically actuated by operation of the motor drive system to open the security gate. The latching device effectively prevents the security gate from being forced open, and in one embodiment includes a mechanism for preventing manual disengagement of the latch from attempts to force the gate laterally until the latch disengages. The latching device of the present invention is substantially cheaper than other security gate locking devices, as well as being highly reliable and wear-resistant.
Abstract:
A sliding door operator comprises a tubular housing adapted to receive first and second elongated bars in a spaced apart and parallel arrangement. Both bars include a gear-toothed rack engaged by a single motor driven gear. An end of one bar is secured to the door and an end of the other bar is secured to a wall structure. A bracket secured to the door includes registering apertures adapted to mate with a bore in the end of one of the bars so that the bar can be detachably locked to the door by a locking pin. The other bar also includes a bore adapted to mate with the aperture in a channel bracket secured to the stationary wall structure to receive a removable locking pin therethrough. In addition, the operator includes a locking mechanism for locking the bars in a fixed position with respect to each other.