Seat
US7275793B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 2, 2002 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Dec 22, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2403/0221
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat includes a seat frame, and a cushion material supported by the seat frame and having a three-dimensional knitted fabric which is formed by joining, with connecting threads, a pair of ground knit fabrics which are disposed so as to be separated from one another. The cushion material includes a first region whose elastic compliance when a reaction force is applied to an extending side of the cushion material when an occupant is seated on the seat is substantially equivalent to an elastic compliance of a portion of the occupant's body pressing the cushion material and a second region whose elastic compliance is larger than that of the first region. Accordingly, a thin and light seat can be provided, load concentration on the occupant's tuber ishiadicum bottom portion when seated for a long period of time can be mitigated, and vibration-transmitting characteristics can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.