Escalator handrail entry safety switch actuator

US4619355A · kind A · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Willy Adrian · Bad Eilsen, DE
• Ralf Holzhauer · Wetter, DE

Key dates

• Filing date: Aug 6, 1985
• Grant date: Oct 28, 1986
• Expiry date: Aug 6, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B29/04
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Two generally U-shaped pieces are adapted to fit together end-to-end so that when they are nested in an appropriately-sized passage in an escalator entry box, they cooperate to form a generally cylindrical actuator that at one end has brushes protruding through the opening of the entry box and that is slideable in the entry box over the handrail to actuate a safety shutoff switch located therein in the unlikely event of a foreign object being pulled by the handrail into the entry box.