Abstract:
A sectional upward acting door including plural door sections interconnected by hinges and supporting guide members on opposite side edges of each section for moving the door between open and closed positions along spaced apart guide tracks. The door sections are formed from folded metal panels defining an outer wall of each section, opposed top and bottom walls which are curved to provide a pinch resistant connection between door sections and upper and lower inner walls. The upper inner wall includes a socket for receiving a hinge assembly including an elongated hinge plate which is snap fitted into assembly with plural self-lubricating polymer hinge bearing members which fit within the socket. Spaced apart end stiles and center or intermediate stiles support the panel member and transfer the weight of the door sections and other loads between sections at the hinge bearing members. The bottom and top wall profiles of adjacent sections and the hinge assembly provide a substantially pinch resistant door assembly.
Abstract:
A wheeled top guide for rolling movement of a door along an inverted U-shaped track includes a housing for mounting on the door with an upwardly extending axle and a roller thereon for rolling engagement with one side wall of the trace. A vertically oriented torsion member is seated in the housing and has a vertically extending elongated torsion rod having its lower end fixed on the housing, a horizontally extending arm having one end secured to the upper end of the torsion rod and extending away from the first shaft, and an upwardly extending axle adjacent the other end of the arm. A second roller on this axle is in rolling engagement with the other side wall of the track and is spaced from the first roller. The second roller and arm are resiliently displaceable about the longitudinal axis of the torsion rod towards the housing for insertion of the rollers into the track, and the resulting torque in the torsion rod produces a force biasing the arm and thereby the second roller to maintain the rollers in firm rolling contact with the side walls of the track.
Abstract:
A supporting bearing (17) for linearly guided travelling units, having a housing and having a roller (20) which contains a rolling-contact bearing (26) and is seated on an eccentric bolt (28) which is mounted rotatably in the housing and can be fixed by clamping bolts (27). The housing (18a, 18b) is composed of two housing halves (18a, 18b) which are preferably of the same construction. The axial position of the roller (20) is determined by inner wall regions (46) of the housing halves (18a, 18b), which are laid or pressed against the end sides of the inner raceway (27) of the roller (20) after radial adjustment of the roller (20), by clamping the housing halves (18a, 18b) together. This results in the axial position of the roller (20) being fixed directly by way of its inner raceway (27).
Abstract:
An electric operator for a sliding door mounted for sliding movement along a track, comprising a motor having an iron cooling flywheel disposed on a drive shaft thereof, the flywheel being provided for imparting a predetermined amount of inertia for starting and stopping of the motor such that the operation of the motor is characterized by a soft start and stop. A worm gear reducer is connected to the drive shaft for effecting a predetermined reduction ratio of rotation. A limit switch is coupled to the reducer for limiting rotation of the drive shaft to a predetermined number of rotations, and apparatus is provided for coupling rotation of the drive shaft to the linear movement of the sliding door along the track.
Abstract:
A window regulator apparatus includes a guide rail fixed within a vehicle door, a bracket including a window mounted on the guide rail, a driving mechanism fixed within the door for moving the window up and down the guide rail, and a resilient member mounted on the guide rail for preventing the guide rail and window glass from contacting and thereby preventing the window glass from being damaged.
Abstract:
A partition, more particularly for a corner-shower, with a rounded entrance area, contains door-elements by means of which the entrance-area may be closed off or opened. The door-elements are arranged displaceably in guide-rails which are curved in the entrance area and are connected to at least one wall-element. It should be possible to produce a partition of this kind inexpensively and to obtain reliable guidance and accurate alignment of the door-elements with as few components as possible. The door-elements are curved to match the guide-rails and the guide-elements of each door-element is arranged at a predetermined distance from the longitudinal edges. A total of two door-elements is provided and these are curved over an angular range of approximately 45.degree.. They are adjustable in height by means of at least one guide-element, more particularly an eccentric pin.
Abstract:
A cabinet (10) comprises a top wall (12), bottom wall (14), two identical side walls (16), each having a front edge (18), and a back wall (20), the walls (12, 14, 16, 20) defining a front opening (22). A flipper door (24) is adapted to cover the opening (22) and the front edges (18) of the side walls (16) when the flipper door (24) is in the closed position. To this end, the width of the flipper door (24) is greater than the distance between the sidewalls (16) of the cabinet (10). In addition, the flipper door (24) is suspended by a rack-and-pinion assembly (26) which includes racks (30) secured to the side walls (16) and pinion gears (36) rotatably engaging the racks (30). The pinion gears (36) are coupled together by an axle (40). The ends of the axle (40) engage lower guide channels (34) in the racks (30). Pivot links (46) are pivotally coupled to the ends of the axle (40) between the pinion gears (36) and the racks (30). The pivot links (46) are also pivotally connected to flipper door brackets (52) through stud shafts (62) mounted to the brackets (52) and pivotally connected to the pivot links (46). The stud shafts (62) ride in upper guide channels (42) in the racks (30). The flipper door brackets (52) are rigidly secured to the flipper door (24). When the flipper door (24) is moved to its forward-most position, the links (46) operate to offset and translate forwardly and upwardly the pivot axis of the flipper door (24) to enable the flipper door (24) to close over opening (22) and the front edges (18) of the side walls (16).
Abstract:
A rolling nut in combination with a smooth shaft includes a plurality of bearing-like roller cages surrounding the shaft and having internal surfaces in contact with portions of the outer surface of the shaft and is operative for transforming a rotary movement of the shaft into thrust movement of the rolling nut. The rolling nut is open and is provided with a base plate formed with a plurality of pocket-shaped recesses in which the roller cages are partially inserted. The base plate is formed with similar recesses at both sides thereof so that the roller cages can be repositioned on either side of the plate to selectively adjust the roller cages to the left hand thread of the shaft or the right hand thread of the shaft.
Abstract:
A door which is to be swung open and closed to provide access to an enclosure and slid back into the enclosure is provided with one or more hinges rotatably mounted on a shaft to the ends of which there are fixedly mounted gears which positively engage respective racks disposed adjacent the top and bottom of the enclosure and extending along the depth of the enclosure so that as each door is slid in and out of the enclosure there is no rotation of the door in its plane and, hence, no sagging and binding of the door. A portion of each hinge is confined within a guide block which is in turn rotatably connected with the shaft and slidably mounted in a channel adjacent and parallel to the rack so that only the member of the hinge attached to the door is swingable with the pivot of the hinge being rectilinearly slidable with the door along the depth of the enclosure.