Collapsible chair with safety lock
US7229128B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | May 13, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C4/286
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Collapsible furniture includes a frame structure configured to support weight, including a plurality of scissor members configured to fold and a plurality of upright members, each coupled to at least two of the scissor members. The collapsible furniture also includes a lock mechanism coupled to at least two of the scissor members and at least one of the upright members, configured to secure the collapsible furniture in a deployed position. In one aspect, the lock mechanism includes a housing, slidingly coupled to an upright member, configured to couple at least two of the scissor members to the upright member, a button member slidingly coupled to the housing, configured to extend through an opening on inner surface of the housing into the upright member when in a depressed position, and to extend outside outer surface of the housing when in an extended position, a spring plate, and a spring. Advantages of the invention include providing a safety feature in use of the collapsible furniture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.