Stapler safety guard
US7124922B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2005 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Feb 23, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/0242
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A stapler or like self-powered tool for dispensing and driving fasteners includes a safety mechanism to prevent unintended ejection of a staple or fastener. A movable hook normally obstructs the path of a staple so that the staple is intercepted and stopped as a spring-biased striker ejects the staple from the stapler. The striker preferably includes a notch and an end of the hook extends into the notch so that the safety mechanism can be compact. A button bar is linked to the hook and the button bar normally extends out from the stapler. When the stapler is placed against a working surface, the working surface presses the button bar vertically into the stapler, which causes the hook to rotate out from the striker slot and enables normal stapling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.