Reconfigurable apparatus having a leaf spring with a working length that shortens to increase resistance to tilting of a backrest relative to a column, and process for assembling the reconfigurable apparatus
US11744374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2023 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Apr 12, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C31/126
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Disclosed herein is a reconfigurable apparatus that includes a backrest, a seat coupled with a column, a linkage statically attached to the backrest, a leaf spring in direct contact with the linkage, a first structure fixed to the column, and a second structure. The first and second structures each have one or more teeth. The chair is also configured such that when a weight is applied to the seat, the one or more teeth of the second structure move along the one or more teeth of the first structure to thereby shorten a working length of the leaf spring and provide an increased resistance to tilting of the backrest relative to the column. A process for assembling the reconfigurable apparatus is also described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.