Compact simplified staple gun mechanism
US6145728A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/11
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A compact simplified staple gun mechanism is disclosed. The invention provides an improvement to conventional staple guns and particularly to a forward action type staple gun. A compact high efficiency reset spring applies force in selected directions depending on the position of an actuating lever in the reset cycle. The lever and power spring engage a plunger through multiple proximate openings in the plunger while retaining a strong compact configuration. The lever and power spring are partially nested in each other and pivot about a common post of the housing. The above combined features provide a high efficiency compact staple gun tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.