Trolley body with embedded inserts for axles having a peripheral groove cast into body
US5085150A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1990 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Mar 20, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B2360/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trolley body for a power and free conveyor system having preformed machinable inserts cast into an austempered ductile iron body for axles wherein ends of the inserts to be embedded therein are center-drilled for positioning purposes in a casting mold. The preformed axles have a hexagonally-shaped cross-section to prevent rotation of the axles relative to the body and also have a groove thereabout to prevent axial movement of the axles relative to the body. The axles are constructed of swagable material to allow subsequent securement of wheels thereon. Gates in the trolley body casting for introducing the molten iron into the casting are situated immediately above or in near proximity to each insert embedded therein to minimize solidification shrinkage thereabout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.