Synchronisation of door movements in a lift system

US11339028B2 · kind B2 · utility

Assignee

• TK Elevator Innovation and Operations GmbH · DE

Inventors

• Michael KIRSCH · Kirchheim unter Teck, DE
• Matthias Glück · Biberach an der Riß, DE

Key dates

• Filing date: Oct 25, 2018
• Grant date: May 24, 2022
• Expiry date: Mar 12, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B5/0006
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method can be used to position a car door and a landing-stop door in a synchronized manner at a landing stop in an elevator shaft of an elevator system. The car door may be configured as a guide door, and the landing-stop door may be configured as a follower door. The method may involve bringing an elevator car close to the landing stop, upon entry of the car door into an unlock zone sensing a presence signal of the follower door by way of a presence sensor of the guide door, actuating the guide-door drive by way of the guide controller and executing an opening movement of the guide door, providing movement information of the guide door, and actuating the follower-door drive of the follower door.