Foldable stroller
US5417450A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Mar 18, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B9/104
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A foldable stroller includes a seat frame, a pair of wheel frame units disposed on two sides of the seat frame, a backrest frame mounted pivotally to the seat frame, a pair of connecting frames disposed on the two sides of the seat frame, a handle unit and a catch mechanism for retaining releasably the foldable stroller in an unfolded position. Each of the wheel frame units includes a front support member, a rear support member connected pivotally to the seat frame, and a connector for interconnecting pivotally the front and rear support members. Each of the connecting frames includes a pivotable shaft, a pivot pin for connecting pivotally the top end of the pivotable shaft to the seat frame, a rear positioning unit mounted on the pivot pin, a slide piece provided on the bottom end of the pivotable shaft and straddling removably one of the rear support members, a first connecting shaft with two ends connected pivotally and respectively to the pivotable shaft and one of the rear support members, and a second connecting shaft having two ends connected pivotally and respectively to the first connecting shaft and one of the front support members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.