Hinge device for armrails of a playpen
US5485655A · kind A · utility
Inventor
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32393
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A hinge device for armrails of a playpen. The playpen includes an essentially rectangular upper support formed by four pairs of rods each centrally coupled by a hinge device, an essentially lower support formed by four rods each centrally coupled by a hinge and four corner rods pivotally engaged to each corner of the upper and the lower supports, the hinge device having two open ends each of which is defined by two side walls in each of which a first hole and a second hole are defined, a cut-away defined in an upper portion of the open end and communicating therewith, the rod having a bore defined by a periphery, with a third hole and a fourth hole defined in the periphery and a biasing element received in the bore with a protrusion extending out from said fourth holes, a plate fixedly engaged to a side of the hinge by a rivet and having two slender arms extending in a opposite directions, a finger extending longitudinally from each slender arm and having a boss extending laterally therefrom corresponding to the protrusion so as to eject the protrusion from the second hole by pushing the finger to allow the rod to be pivoted about an axis of the rivet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.