Patent ID: 6044586
Filing Date: 2000-04-04
Classification: E06B

Abstract:
A two-arm turnstile lock for blocking and unblocking a passage through a passageway, which comprises(a) a star-type rotating body having a rotational shaft,(b) a drive motor rigidly connected to the rotational shaft for driving the rotating body,(c) only two arms rigidly connected to the rotating body and projecting therefrom, the arms(1) enclosing an angle with the rotational shaft and(2) being arranged to assume two blocking positions wherein one of the arms projects substantially horizontally into the passageway to block the passageway, and(d) a control unit connected to, and controlling the operation of, the drive motor so that,(1) during normal operation, the rotating body is driven in a stepwise rotation between a first blocking position in which one of the arms extends substantially horizontally into the passageway and a second blocking position in which the other arm extends substantially horizontally into the passageway, and(2) during an unblocking operation, the rotating body is retained in an unblocking position in which the two arms are held in a vertical plane extending substantially parallel to the passageway to unblock the passage.