Handcart handle height adjusting mechanism
US4586399A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Oct 11, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/608
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A handle height adjusting mechanism includes a handle with an upper rod portion having a grip, and a lower rod portion for slidably supporting the upper rod portion. The upper rod portion has a lever turnably attached thereto. The lever has an engaging projection adapted to fit into engaging holes of the lower rod portion. The lever is constantly urged by springs in a direction which allows the engaging projection to fit in any one of the engaging holes. The upper rod portion has a stopper turnably attached thereto preventing a cancellation of the engagement between the engaging projection and an engaging hole. The stopper has a presser portion, and brake portions for contacting the lower rod portion when the presser portion covers the lever, so as to stop the turning movement of the stopper. Thus, when the engaging projection is in engagement with an engaging hole, the turning movement of the lever is inhibited and hence the engagement between the engaging projection and the engaging hole cannot be canceled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.