Foldable skeleton for playpen
US6851135B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 27, 2004 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Feb 27, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47D13/063
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A foldable skeleton for a playpen foldable skeleton includes an upper frame, four upright rods, and a bottom frame. The upper frame includes two pairs of first rods, two pairs of second rods, four joints, and four connecting seats. Each of the joints includes a main base, a press button, a cover, a locking block, an elastic member, and two linking blocks. The bottom frame includes four support seats, four bottom rods, two linking gears, a connecting base, a pull member, and an operation member. Thus, the teeth of the two linking gears mesh with each other, so that the two linking gears are rotated relative to each other in a synchronous manner, and the bottom rods are folded synchronously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.