Fixing element for locking a hinged hand crank on the input shaft of a support winch for a semi-trailer
US8985626B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20744
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a fixing element for locking a hinged hand crank on the input shaft of a support winch for semi-trailers, wherein the hand crank is fastened to the input shaft in an articulated manner and can pivot between at least one folded-in rest position and at least one folded-out usage position. According to the invention, said fixing element has a fastening section for fastening to the hand crank and a spring bar connected to the fastening section on which at least one locking section is formed, wherein the locking section reaches over the end face of the input shaft in a form-fitting manner in a folded-out usage position of the hand crank and is simultaneously pulled against said end face of the input shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.