Method of forming and driving staples
US4583276A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1985 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Jan 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49835
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A staple forming and driving tool (10) employing a vertical front portion of a staple head base (34), and sheath (40) to provide a space for reciprocating former member (70) and driver (80). Spring (50) urges base (34) toward sheath (40) with spacer lugs (33) maintaining a defined distant between base (34) and sheath (40). A belt (94) is fed through an opening (100) in base (34) by a cartridge (90) which protrudes into opening (100) and belt advancing means (104, 112) is held inoperative by forming tang (75) during a portion of the forming and driving stroke to prevent movement of staple wire (200) during critical periods of such stroke. The former (70) is moved during the forming and driving stroke through a path which permits former lugs (72) to guide the former staple down to a point adjacent the workpiece (300).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.