Seat cushion pad for vehicle, seat back pad for vehicle, and seat for vehicle
US7588296B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2006 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Dec 14, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2205/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat cushion pad for a vehicle and a seat back pad for a vehicle producing no discomfort between seat comfort of an under-hip section and a backrest section and that of the other sections. The seat cushion pad for a vehicle, in which a part of or entire seating surface except the under-hip section is composed of a material b having a density lower than the density of a material a, or the seat back pad has any one of features described in the following items (i) to (iii). (i) Load-deflection lines of the material a and the material b are allowed to substantially agree with each other. (ii) Amounts of depression or static spring constants of the material a and the material b by a specific reaction force (for example, 50 N or 100 N) based on a JASO-B408 testing method are allowed to substantially agree with each other. (iii) Reaction forces at a specific amount of deflection of the material a and the material b based on a push-pull gage measuring method are allowed to substantially agree with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.