Mechanism for locking opened and closed states of baby carriage
US4697823A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 1986 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | May 16, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
One end of a support angle member is turnably connected to the lower end of a push rod, and the other end of the support angle member is turnably connected to the middle portion of a rear leg. When the push rod is aligned with one end of the support angle member, a sleeve urged by a spring to slide downward on the push rod engages the opened state locking-purpose engaging portion of the support angle member, thereby locking the opened state of a baby carriage. When the baby carriage is to be locked in its closed state, the sleeve engages the closed state locking-purpose engaging portion of the support angle member, thereby locking the closed state. The sleeve is formed with a lock canceling-purpose engaging projection, while the support angle member is formed with opened and closed state canceling-purpose engaging projections, respectively, which, in canceling the lock of the opened or closed state, engage the lock canceling-purpose engaging projection to thereby temporarily hold the sleeve out of engagement with the opened or closed state locking-purpose engaging portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.