Bump stop tube for a folding implement
US6367562B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Aug 23, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/046
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A multi-section implement frame with outer wing sections which fold relative to an inner section includes a bump stop tube assembly having a simple tube with faces slotted at one end to receive the bight portion of a U-bolt. The legs of the U-bolt are threaded and extend around the faces of an inner frame section tube, and a two-hole strap is positioned over the ends secured against the bottom of the frame section tube by two nuts. A tapered stop includes a connecting portion received within the projecting contact end of the tube to eliminate a welding step during manufacture. The slotted end of the tube is coped to generally conform to the shape of the frame section tube. The assembly is very simple and inexpensive and can be slid easily on the frame section tube to avoid standards, wheel modules or various other obstructions mounted on the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.