Folding bearing structure, stroller
US9975566B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 12, 2012 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Sep 5, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B2205/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bearing structure includes a wheel assembly defining a first front wheel assembly and a second rear wheel assembly, the rear wheel assembly including at least two wheels spaced by a first width defining a first position; wheel supports connecting the axes of rotation of the wheels with the bearing structure; a first folding device enabling a first folding causing a reduction in spacing between the two rear wheels to a second width lower than the first width, defining a second position. A connection system, connecting the wheel supports of the first and second assemblies to the first folding device, enables a second folding of the wheels so as to allow a rotation substantially equal to 90° of the wheels in the horizontal plane when the wheels are in the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.