Seating unit comprising two adjacent, pivotal support elements
US5904397A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Oct 23, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/55
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A seating unit having two adjacent and mutually pivotal support elements 3, 4) pivotal between an initial position and a maximum flexed position. A spring element (12) is secured between the support elements (3, 4) and biases the support elements (3, 4) into the initial position. The spring element (12) comprises a base member (13) arranged in an area between the support elements (3, 4). At least one engagement element extends from the base member (13) into cavity (14, 15) in one of the support elements (3, 4) such that the support elements (3, 4) may pivot relative to each other. The engagement element is provided with a rigid stop (17, 17') projecting from the base member (13) to define the maximum flexed position of the support elements. The engagement element is further provided with a leaf spring (18, 18'; 68) to restore the support elements (3, 4) to their initial position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.