Self-lock hub unit of lower frame of a foldable playyard
US6711760B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2002 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Dec 16, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47D13/063
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present application provides a self-lock hub unit of the lower frame of the playyard includes a body (10) having a plurality of slots formed at a periphery thereof for receiving tube legs of the playyard and a vertical cavity formed at the center thereof; an actuating member (20) which is vertically movably received in the cavity; two sliding engaging assemblies (30) movably mounted two oppositely positioned tube legs respectively, each sliding engaging assembly having a first member, a second member coupled to the first member for movably coupling the first member to one of the tube legs, and a biasing member disposed in the tube leg to bias the first and second members toward an open end of the tube leg, wherein the two oppositely positioned tube legs are rotatably received in two radially opposite slots of the body respectively; two locking means (16, 17) formed on the body at positions corresponding to the sliding engaging assemblies respectively and having a guiding portion (18, 18′) and an engaging portion (19, 19′); and a strap (40) coupled to the actuating member, wherein the actuating member, the sliding engaging assemblies, and locking means are arranged s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.