Collapsible chair
US8292361B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 10, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Oct 18, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C4/48
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A collapsible chair has a frame and a cover attaching thereto. The frame has a left side stand and an identical right side stands, which linked by four pairs of scissoring linking bars. A hook frame and a pillar frame are provided pivotally linked to the frame. The pillar frame has side pillars securely formed thereon and the hook frame has hooks defined in an end thereof. The hooks and the pillars are able to engage when the collapsible chair is fully expanded, which makes the collapsible chair self-stable and much safer: a loose or broken soft cover or attachment thereof to the frame will not cause breakdown of the whole frame which may serious injure the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.