Turnstile ticket barrier e.g. for Metro - comprises three arms in rotating hub at 45 degrees and each fitted with flange to increase effective height when horizontal

摘要

A turnstile-type ticket barrier consists of a rotating hub (1) which has its centreline at an angle of about 45 degrees to the vertical. Three arms (4-6) protrude from the hub so that each time it rotates, when a person walks through, one arm comes up into a horizontal position to block the passage. Fitted to each arm, to increase its effective height when horizontal, is an arched metal flange or plain panel of max. height 150 to 300 millimetres. When horizontal, the arms are 650 to 750 millimetres above the ground. USE/ADVANTAGE - E.g. for use in Metro barriers. The increased height of the horizontal arm makes it harder for a person to slip through illegally.