Electric driving machine
US8167182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2007 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/1689
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric driving machine includes a remaining fastener sensor 257 which detects the amount of fasteners (e.g., nails) remaining, in an aligned and held manner, in a magazine 2 and which generates a residual-quantity signal (a signal showing depletion of fasteners) when the amount of remaining fasteners has decreased to a predetermined level or less; a remaining fastener detection circuit 406 which outputs a control signal (a signal of level 0) for controlling control means (299, 283, and other means) in accordance with an input of the residual-quantity signal (a switch-on signal) generated by the remaining fastener sensor 257; and a delay circuit 401 for delaying the remaining signal (the ON signal) generated by the remaining fastener sensor 257 by a predetermined period of time (e.g., 20 milliseconds) and inputs the thus-delayed remaining signal to the remaining fastener detection circuit 256 (406).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.