Spring assembly for upholstered seats
US3982737A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1975 |
| Grant date | Sep 28, 1976 |
| Priority date | — |
| Expiry date | Apr 9, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/287
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A spring assembly for a seat having a rigid frame including front and rear rails, comprising a flexible deck sheet connected at its rearward edge to said rear frame rail, with its forward edge spaced rearwardly from the front frame rail, a series of angled levers spaced across the forward edge of the deck sheet and vertically pivoted thereon, the longer upper legs of the levers being inclined upwardly to be spaced at their upper ends above the front frame rail to form a bolster support, links connecting the free ends of the shorter lower legs of the levers to the front frame rail, and springs applying elastic tension to the deck sheet, lower level legs and links between the front and rear frame rails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.