Effort-saving stapler
US7604149B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2008 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Apr 12, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/11
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An effort-saving stapler includes a shell device and a triggering device installed to the shell device. The triggering device includes a trigger, an operation element and two bearings. An end of the trigger defines a lever for user to hold, and another end of the trigger includes teeth engaging with the shell device. A pivot pin is adapted for inserting through the trigger, the operation element and the bearings so that the pivot pin can drive the operation element to move in the trigger. A limit pin is adapted for inserting through the trigger and the operation element and abuts with the shell device. The pivot pin is regarded as a fulcrum, while the trigger is pressed, the teeth of trigger engage with the shell device so that the pivot pin quickly moves with the trigger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.