Overhead crane with adjustable bearing assemblies
US6622877B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jul 22, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C9/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An overhead crane having an adjustable bearing assembly to adjust a wheel and axle of the crane in a horizontal direction in order to minimize skewing of the crane on a pair of parallel rails. A bearing retainer includes an outer surface sized to fit into an associated bore in an end truck of the crane, and an eccentric inner surface which engages the outer surface of a bearing. When the bearing retainer is rotated, the wheel and axle extending therethrough are moved in a horizontal direction. The bearing retainer includes a closed end having a surface which is engageable by a tool to allow for the rotation of the bearing retainer. A locking ring releasably fixes the bearing retainer and therefore the bearing to the frame of the crane as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.