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    Automatic entrance with sliding doors
    3.
    发明授权
    Automatic entrance with sliding doors 失效
    自动入口带滑动门

    公开(公告)号：US3136538A

    公开(公告)日：1964-06-09

    申请号：US23847862

    申请日：1962-11-19

    Applicant: DOR WEST INC

    Inventor： DIMMITT ROBERT E ,  CHARLES KESSNER

    IPC: E05D3/06 ,  E05D15/48 ,  E05F15/06 ,  E05F15/20 ,  E06B3/50

    CPC classification number: E05D3/186 ,  E05D15/48 ,  E05D2015/482 ,  E05F15/56 ,  E05F15/72 ,  E05Y2201/214 ,  E05Y2201/236 ,  E05Y2800/25 ,  E05Y2800/746 ,  E05Y2900/132 ,  E06B3/50 ,  E06B3/5072

    Abstract: 1,009,389. Door operating appliances; sliding doors; hangers; hinges. DOR-WEST Inc. Oct. 17, 1963 [Nov. 19, 1962], No. 41006/63. Headings E1J, E2F and E2M. An entrance is closed by a sliding door or doors supported by carriages running on an overhead track and automatically power operated when a person enters or leaves a traffic area including the entrance, and each door comprises a frame to which is hinged a wicket door arranged to swing outwardly to form an emergency exit. A door assembly 26 supported by carriages 31 running on a track 30 in a head recess 27 extending over the doorway and pockets 25 is moved into and out of the pockets 25 by an arm 34 and link 35 driven by an hydraulic motor 33 accommodated within the pocket 25. The door comprises an L-shaped frame with a header 47 and a joint part 48. A door having top and bottom rails 54-55, and stiles 52-53 with a glass panel 50 is hinged to the joint part 48 by a hinge, Fig. 7, comprising two sets of leaves 56, 56 1 pivoted together at 57. One end of each set is pivoted to a butt block 58, 59 on the door stile or from joint 48 respectively, and the other end of each set has pins 62, 63 sliding in slots in the butt blocks. The header part 47 of the sliding frame has a tongue 66 and groove, Fig. 2, co-operating with a tongue 65 and groove on the top rail 54 of the wicket door to carry its weight when the door is held in closed position by a bullet catch 67. In a modification, Fig. 9, one of a pair of doors is operated by an hydraulic motor, and the other door is operated by cables 140 extending from carriages 132, 133, 134, 135 round pulleys 137, 138 in the head recess 27. In this embodiment the carriages have single wheels running on a rib type rail, Fig. 10, not shown, and carry non-rise rollers. The hydraulic motor or motors are set in motion by electrical switches operated by the depression of carpets 41-42 on either side of the doorway, which set in motion a motor driving a pump in a closed hydraulic circuit with a reservoir and the operating motor.

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