Patent · US Expired

Travelling mechanism of a rail-movable lifting device

US6050198A · kind A · utility

5Cited by

8References

6Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Udo Gersemsky · Herdecke, DE
Alfred Fanger · Wetter, DE
Ralf Eising · Bochum, DE

Key dates

Filing date	Mar 13, 1998
Grant date	Apr 18, 2000
Priority date	—
Expiry date	Mar 13, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66C9/14
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A travelling mechanism for a rail-movable lifting device includes a carrier with running wheels which roll on a longitudinally extending running surface of a rail. A double lever is pivotally mounted on the carrier. A drivable friction wheel that is positionable on a longitudinally extending friction surface of the rail is rotatably mounted on the double lever. An opposing side of the double lever supports the lifting device, whereby the double lever presses the friction wheel against the friction surface of the rail by a force under the weight of the lifting device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.