Patent ID: 8827155
Filing Date: 2014-09-09
Classification: E05F,E06B

Abstract:
1. A mechanically guided access control gate for an access lane for patrons, comprising: two motor driven flaps which protrude from left and right of lateral lane boundaries into the access lane so as to form a closable gate defining a gate threshold; an electronic gate control unit for controlling the motor driven flaps and configured to receive an opening signal from a verification system; and a detector system connected to the electronic gate control unit and comprising two or more photoelectric barriers having first and second spaced detecting beams detecting a passage of a patron through the gate, the first detecting beam forming a presence sensor at the gate threshold and the second detecting beam forming an exit sensor behind the gate threshold, wherein the electronic gate control unit uses a regular operation program to provide power to the motor driven flaps in response to the opening signal and to drive the flaps with maximum speed between the open and closed position and vice versa, said regular operation program forcing the flaps to turn out of the lane until a flap position sensor indicates a final flap open position, wherein the electronic gate control unit provides power to the motor driven flaps forcing the flaps to close immediately as soon as the first detecting beam and the second detecting beam have been blocked and released by the patron, and wherein the electronic gate control unit contains a safety operation program which is initiated when the second detecting beam is blocked and an opening signal to the electronic gate control unit arrives, whereupon the safety operation program reduces the opening speed of the flaps to a slower safety speed.