Portable circular saw having light irradiation unit
US8186067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2007 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Mar 29, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/828
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable circular saw includes a housing, including a motor, a circular saw blade, a saw cover, and a light irradiation unit. The blade is driven by the motor for cutting in a cutting direction. The circular saw blade has one side surface and another side surface. The saw cover is provided to the housing for partially covering the circular saw blade. The light irradiation unit is provided on the saw cover. The light irradiation unit includes a first irradiation device located on the one side surface side of the blade and a second irradiation device located on the another side surface side of the blade for emitting a light to illuminate a region including a leading end portion of the circular saw blade and a spot on the cutting object. The spot is ahead of the leading end portion in the cutting direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.