Elevator with code pattern to determine car position

US10329119B2 · kind B2 · utility

Assignee

• Kone Corporation · FI

Inventors

• Mikko Puranen · Helsinki, FI
• Pentti Alasentie · Espoo, FI

Key dates

• Filing date: Apr 5, 2016
• Grant date: Jun 25, 2019
• Expiry date: Jul 25, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B7/062
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An elevator including a hoistway, an elevator car vertically movable in the hoistway, a rope connected to the elevator car movably together with the elevator car, a guide for guiding the rope along a path and a device that determines a position of the elevator car. The device includes an elongated code mark pattern provided on the rope, one or more sensors mounted beside the rope for sensing code marks of the code mark pattern, and an analyzer connected with the a plurality of sensors. The one or more sensors sense code marks of the code mark pattern passing by them when the rope moves along its path, and the analyzer determines the current position of the elevator car based on code marks sensed by the one or more sensors during movement of the rope.