Sprung seat frame
US5505521A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Apr 13, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/0264
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sprung seat frame comprises a base element, a top element and a spring arrangement between the base and top elements. The spring arrangement has at least two leaf springs which are arranged one above the other at a spacing from each other and at least approximately parallel to each other. One end portion of each leaf spring is connected to the base element and the second end portion of each leaf spring is connected to the top element. The leaf springs are disposed obliquely inclinedly between the base and top elements. At least one corrector leaf spring which is oriented at least approximately parallel to the leaf springs and which is shorter than same is additionally operatively disposed between the base and top elements for optimizing the springing characteristic of the seat frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.