Folding seat having a belt member
US6644752B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Jul 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/75
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat member 10 of the present invention is provided with a belt member 200 in the back side of each cushioning member, in which the belt member is held by engaging with an appropriate portion of a back frame 30 at its one end and with an appropriate portion of a seat frame 40 at the other end, is disposed in the vicinity of, at least, either right or left side of a sitting person in a direction along the longitudinal cross-section, and is designed to have the length in the overlapping area with the above-described cushioning members shorter than the length along an expanded state of the cushioning members in the same area and is designed to be made of a material having a higher stiffness than those of respective cushioning members. By disposing the belt member 200, when a person takes a seat, it becomes possible to support the waist of sitting person since a portion corresponding to the belt member is relatively bulged out. In addition, since a relatively bulged position of the place corresponding to the belt member differs in response to the physique (weight, etc.) of the sitting person, the waist-supporting function can be exhibited in response to difference in the physique so …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.