Turnstile with automatically pivoting arms

Details Turnstile with automatically pivoting arms Turnstile with automatically pivoting arms

1995-12-07

1997-02-25

Green, Brian K.

Movable or removable closures

Plural wings radiate from common pivot; i.e., revolving

Successive position-type; e.g., turnstile

E06B 1108

Patent

active

056050151

ABSTRACT:
An apparatus including a turnstile for controlling the passage of person including a locking assembly with a bearing dish for rotating about an axis of rotation which is oriented approximately 45.degree. from a horizontal line. A releasable locking device selectively allows and restrains rotational movement of the locking assembly in both directions. At least two locking arms are pivotally mounted to the bearing dish about pivot axis extending transverse to a longitudinal axis of the respective locking arm. Each locking arm is pivotable between a substantially-horizontally locked position and a released position permitting unobstructed passage to the turnstile. A locking bar is provided for each locking arm which arrests the respective locking arm in the locked position. An electromagnet maintains a release device in a pre-cocked position. Upon loss of power, the electromagnet actuates the locking bolt to pivot the locking arm into the release position. When power is restored, the bearing dish is remotely activated which automatically returns the locking arm to its locked position.

REFERENCES:
patent: 2019326 (1935-10-01), Stuart
patent: 3978613 (1976-09-01), Hayward et al.
patent: 5072543 (1991-12-01), Tetherton
patent: 5355630 (1994-10-01), Kocznar et al.
patent: 5471795 (1995-12-01), Gallensch utz et al.

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