Drive frame for a self-propelled elevator car

US5713432A · kind A · utility

Assignee

• INVENTIO AG · CH

Inventors

• Utz Richter · Markgröningen, DE
• Christoph Liebetrau · Menziken, CH
• Albrecht Morlock · Weingarten, DE
• Ortwin Piper · Schwieberdingen, DE
• Helmut Heizmann · Stuttgart, DE

Key dates

• Filing date: May 31, 1996
• Grant date: Feb 3, 1998
• Expiry date: May 31, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B9/02
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A drive frame for a self-propelled elevator travelling on guide rail running surfaces (22) includes a car carrying frame (5,14,16,17,18) on which are mounted driving wheels (1) coupled to a drive unit (24) and supporting wheels (2). The driving wheels (1) are rotatably mounted on axle tubes (3) connected to the drive unit (24) and rocker arms (15) pivotally mounted on frame brackets (5). The supporting wheels (2) are rotatably mounted on an axle (12) mounted on axle carriers (4) extending from the frame brackets (5). The driving wheels (1) and the supporting wheels (2) are drawn into contact with the running surfaces (22) by spring cylinders (8) connected between the axle tubes (3) and the supporting wheel axle (12) and extending through lateral passages (13) formed in a frame crossbeam (14) connected between the frame brackets (5).