Drawing device
US8984728B2 · kind B2 · utility
1Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53857
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drawing device of the present invention includes a first driving element, a bolt, a plurality of second driving elements, and a plurality of clipping rods. The first driving element drives the second driving elements to rotate simultaneously, so that the clipping rods are able to be rotated and operated. Also, a hook portion of each clipping rod is able to hook to a bottom of objects to be drawn out, and the bolt is disposed on a threaded hole of the first driving element and abuts against the objects to be drawn out. At the same time, the clipping rods are moved outward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.