Pivotal seat for a collapsible playpen
US6473919B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Oct 4, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47D13/063
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A pivotal seat for a collapsible playpen includes a pivotal seat at lower center of a playpen and having a foot and four inverse U-shaped branches on four sides perpendicular to each other two of them having check surfaces and arcuate surfaces for pivoting a pair of elastic rods, the other two of them without the above arrangements for pivoting a pair conventional rod, a T-shaped member embedded into a central bore of the seat including a pair of symmetrically formed rotors superimposedly wrapped on and biased by a pair of coil springs for actuating the elastic rods in and out of the branches and a cover with a handle rotatably secured to the seat to control the movement of the rotors. The elastic rods are motionless when the playpen is flattened. If rotates the cover clockwise for a certain span, the elastic rods are set free to enable the playpen to be collapsed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.