Emergency stop switch of shredder
US7414212B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2018/0023
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An emergency stop switch of a shredder is disposed in a preformed hole on the top cover of the shredder and protrudes from the surface of the top cover for the convenience of switching. The emergency stop switch has a switch with the fwd, off, and rev modes; a brake, which is disposed on the switch and has a control part protruding from the shredder top cover for switching among the different modes and a positioning part for assuring the switch mode; a positioning base, which is disposed on a bottom surface of the shredder top cover opposite to the position of the positioning part for assuring the switch mode; and a restoring part, which releases stored energy to push the switch from the fwd or rev mode to the off mode. When the switch is in any of the fwd or rev mode and the controlling part of the brake that protrudes from the shredder is under a pressure to move downward, the positioning part of the brake departs from the normal fixing position of the positioning base so that the restoring part pushes the switch back to the off mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.