Fastener driving tool
US8857692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2009 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Apr 4, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/047
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
When the plunger is a game moved to a prescribed position Ph of an initial state on the upper dead point side by the drive force of the motor after the plunger is moved to the lower dead point side, the controller of a spring driven-type fastener driving tool reduces the rotational speed of the motor to a prescribed value or less based on the detection signal of the operation detection switch and then stops the slowed down motor. In order to achieve this, the plunger is stopped at a stop position of an initial state that is as close as possible to an upper dead point side drive start position and is subjected to a strong compression force by the drive spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.