Shock absorber
US6854574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2003 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | May 6, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/125
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber as being of a bumper supporting member and a shock absorber as being of a side member, which retain the sinking motion of a smaller-diameter tube portion into a larger-diameter tube portion even if an impact is applied at a larger angle obliquely of an axial direction, thereby to achieve the absorption of the impact energy by a plastic deformation. A plastically deformable straight tube is partially reduced or partially enlarged to form a smaller-diameter tube portion and a larger-diameter tube portion, which join to each other through a step portion. The step portion is formed by joining a folded-back portion of the smaller-diameter tube portion and a folded-back portion of the larger-diameter tube portion, which have circular arc-shaped sections having arcuate angles more than 90 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.