Title:
POWER TOOL
Document Type and Number:
WIPO Patent Application WO/2013/005566
Kind Code:
A1
Abstract:
In the present invention, a power tool (1) has a built-in fan (30) provided with a plurality of blades (33) with unequal pitch between the blades (33). The fan (30) is a centrifugal fan that blows air in all radiation directions. In the fan (30), a non-uniform air volume correction means is provided that corrects blown air volume non-uniformity that may be generated due to the unequal pitch between the blades (33). The blades (33) have a non-uniform inducer as the non-uniform air volume correction means.
Inventors:
TAKANO HIDEAKI (JP)
Application Number:
PCT/JP2012/065591
Publication Date:
January 10, 2013
Filing Date:
June 19, 2012
Export Citation:
Assignee:
MAKITA CORP (JP)
TAKANO HIDEAKI (JP)
TAKANO HIDEAKI (JP)
International Classes:
F04D29/30; F04D29/66
Foreign References:
| JP2004249386A | 2004-09-09 | |||
| JP2000310197A | 2000-11-07 | |||
| JPS60113097A | 1985-06-19 | |||
| JP2002070793A | 2002-03-08 | |||
| JP2006002691A | 2006-01-05 | |||
| JP2010261371A | 2010-11-18 | |||
| JP3071977B2 | 2000-07-31 | |||
| JP2001170877A | 2001-06-26 | |||
| JP2003139094A | 2003-05-14 |
Attorney, Agent or Firm:
OKADA PATENT & TRADEMARK OFFICE, P. C. (JP)
Patent business corporation Okada international patent firm (JP)
Patent business corporation Okada international patent firm (JP)
Download PDF:
Claims:
Previous Patent: PARTICLE MEASURING APPARATUS
Next Patent: VEHICLE BODY STRUCTURE AND METHOD FOR ASSEMBLING VEHICLE BODY STRUCTURE
Next Patent: VEHICLE BODY STRUCTURE AND METHOD FOR ASSEMBLING VEHICLE BODY STRUCTURE