Gate
    68.
    发明专利
    Gate 未知

    公开(公告)号:DE3713222A1

    公开(公告)日:1988-11-03

    申请号:DE3713222

    申请日:1987-04-18

    Abstract: In a gate (6) having two gateposts (4) and a gate closure (7), comprehensive surveillance with respect to climbing over is ensured and high reliability is combined with the least possible probability of a false alarm owing to the fact that the gateposts (4) protrude above an upper edge (9) of the gate closure (7), that a light barrier (13) exhibiting a light transmitter (10) and a light receiver (11) and forming a light path (12) between the light transmitter (10) and the light receiver (11) is provided on the gateposts (4) above the gate closure (7) and that the light path (12) of the light barrier (13) extends over the width of the gate closure (7) between the gateposts (4).

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