Light push chairs of the foldable type
US4640519A · kind A · utility
Inventor
Key dates
| Filing date | Feb 22, 1984 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Feb 22, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention concerns improvements in light foldable push chairs. The subject of the invention is a foldable push chair of the baby buggy type comprising two foldable diagonally swept side bars (2) supporting a basket (1), which are provided at their upper end with a handle (4) and are connected at their lower end to the front end of the chassis (6) of the push chair, two rear vertical side bars (8) pivotally connected to the aforesaid two side bars and connected at their lower portion to the rear end of the said chassis (6), an X-joint (9) connecting the lower portion of the rear side bars (8) to the upper portion (2a) of the first two side bars, the said push chair being characterized in that the said chassis (6) has two foldable X-arms (11, 12) which are horizontally positioned, the ends of the arms carrying the axle pins of the four wheels (7) of the push chair and being extended beyond each wheel axle pin by means of an upwardly curved portion (11a, 12a) which is connected by a suspended connecting member (15), of a Daumont type, to the corresponding end of the aforesaid four side bars (2, 8). Application to baby buggies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.