Electrically-operated tacker
US5004140A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Apr 23, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An elecrically-operated tacker includes means for driving a tack which is urged toward a muzzle section by a spring, an operating means for moving the driving means back to a starting position, a switch having a push button, a trigger means having a pair of first and second depressing elements, a control member for maintaining the first depressing element in an operative position, a safety means for normally maintaining the control member in a safety position, first and second engaging elements provided on the operating means, third, fourth and fifth engaging elements on the driving means, and a release means. Initially the driving means is located in a starting position immediately before a first extreme position. When the trigger is depressed, the push button is depressed by the first depressing element to move the driving means for a slight distance to the first extreme position so that the driving means springs to the second extreme position by the action of the spring to drive a tack. At substantially the same time that the driving means springs to the second extreme position, the first depressing element is forced out of the engagement with the push button. However, before th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.