Load handler with modular frame assembly
US6757958B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2000 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | May 11, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49904
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A load handler with a modular frame and the manufacture and assembly of the frame and loader and components that may be used therein. A frame is provided that has a low pivot point for a boom that may be lowered to a position within the frame. The frame has left and right side rails, and front and rear cross rails, each having a closed cross-section construction. The side rails and cross rails are modular and the cross rails of a selected size are configured to fit a plurality of sizes of side rails, such that the same size cross rails may be used to construct a variety sizes and capabilities of load handling vehicles in a flow type manufacturing process.A structural beam is provided having plates interconnected along their lengths to form the beam having a box-shaped closed cross-section having a perimeter generally along the widths of the plates and forming a beam cavity within the perimeter. A first plate has a width greater than the width of an opposed second plate, and the plates are positioned to form a plurality of welding land inside corners along the length of the beam. A corresponding weld is formed simultaneously with a single pass at all of the welding land inside corne…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.