Turnstile head mechanism construction

Details Turnstile head mechanism construction Turnstile head mechanism construction

E - Fixed Constructions

06

B

91/23

E06B 11/08 (2006.01) G07F 17/14 (2006.01)

Patent

CA 1043608

ABSTRACT A turnstile construction wherein arms normally block the path of movement of persons passing through the turnstile. The arms are engaged when authorized passage is available, and this results in movement of the arms either by the force of the person passing through or in a motor-assisted fashion. The head supporting the arms includes a control system including a drive gear tied to the arms for rotation during movement of the arms. Rotatable locking members are connected to the drive gear, and engaging arms are movable into and out of engagement with the locking members for purposes of controlling use of the turnstile. The engaging arms are normally controlled by the deposit of a proper fare whereby in the course of normal use, only persons paying a fare can pass through the turnstile. When locked, the system automatically protects against breakaway even when an extreme load is applied. A governor is included in the system in a fashion such that bi-directional speed con- trol is automatically provided in all modes of use. The con- struction is designed for controlling the direction through which persons may pass; it can be efficiently set for free- wheeling in one direction, but will lock automatically in a po- sition so that improper use by partial movement of the turn- stile arms is prevented. Also included is an automatic disen- gaging function to permit passage in both directions during emergencies and other circumstances where fares are not to be collected.

251464

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