Attaching structure of rear cushion bracket
US6290015A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K25/283
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To make a vehicle body frame welded with a rear cushion bracket as thin as possible and as light as possible. A vehicle body frame includes a bracket attached to a rear face of an upper portion of a center pipe. The bracket is attached with a rear wheel suspension and a cushion unit is supported thereon at an upper end portion thereof. The wall of the center pipe includes thick wall portions provided only at corner portions of left and right sides of a rear face wall thereof. Left and right end portions of a base portion of the bracket are welded at outer sides thereof to the thick portions of the center pipe. The wall thickness T1 and T3 of thick wall portions of the center pipe are made substantially equal to the wall thickness T2 and T4 of left and right end portions of the base portion of the bracket to be welded. Furthermore, the wall thickness of other portions of the center pipe is made thinner. The center pipe is formed by extrusion of an aluminum alloy or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.