Locking elevator car frame to building during loading/unloading horizontally moveable cab

US5771995A · kind A · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Anthony Cooney · Unionville, US
• Frederick H. Barker · Bristol, US
• Bruce A. Powell · Canton, US
• Samuel C. Wan · Simsbury, US
• Paul Bennett · Waterbury, US
• Richard C. McCarthy · Simsbury, US
• Joseph Bittar · Avon, US

Key dates

• Filing date: Nov 29, 1995
• Grant date: Jun 30, 1998
• Expiry date: Nov 29, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B17/34
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

To prevent elevator rope stretch effects when a horizontally transferable elevator cab (18) is rolled onto and off of an elevator car frame (10), an elevator car/floor lock (31) includes a bolt (37) which extends across the interface between the car frame and the building and engages a strike (39). Jack screw (44) and solenoid (60) embodiments are shown. The bolt may extend from the car frame to the building (FIGS. 1-4) or from the building to the car frame (FIG. 5).