Turning blocking device

US6170194A · kind A · utility

Assignee

• Skidata Computer (yesellschaft m.b.H.) · AT

Inventors

• Wolfram Kocznar · Innsbruck, AT
• Peter Dermutz · Bergheim, AT

Key dates

• Filing date: Jun 15, 1999
• Grant date: Jan 9, 2001
• Expiry date: Jun 15, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G07C9/15
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method of blocking passage of a user through a passageway comprising a turnstile with a housing; a drive and a locking element in which a barrier arm is set in motion following verification of the access authorization of a user wishing to pass, rotating the barrier arm from its blocking position into a position out of line of passage. The advance of the user is then detected by a downstream sensor, in particular an opto-electronic sensor, which causes the barrier arm to rotate further in the same direction into the blocking position.