Title:
ELECTRIC TOOL WITH DUST SUCTION FUNCTION, AND DUST SUCTION DEVICE FOR ELECTRIC TOOL
Document Type and Number:
WIPO Patent Application WO/2010/035395
Kind Code:
A1
Abstract:
An electric tool provided with a dust suction function having excellent dust suction efficiency achieved by using a simple structure for sucking dust without leaving any residue in a hose.
A fan shaft (15) rotating together with an output shaft (7) of a motor (6) and a suction fan (18) mounted on the fan shaft (15) are arranged in a dust suction chamber (11) formed in a hammer drill (1) having a dust suction function. A one-way clutch (19) is mounted between the fan shaft (15) and the suction fan (18). The one-way clutch (19) transmits rotation of the fan shaft (15) to the suction fan (18), and when the speed of the fan shaft (15) is reduced, the one-way clutch interrupts transmission of the rotation to the suction fan (18) to allow the suction fan (18) to rotate by inertia.
Inventors:
KONISHI TAKURO (JP)
MACHIDA YOSHITAKA (JP)
MACHIDA YOSHITAKA (JP)
Application Number:
PCT/JP2009/003943
Publication Date:
April 01, 2010
Filing Date:
August 19, 2009
Export Citation:
Assignee:
MAKITA CORP (JP)
KONISHI TAKURO (JP)
MACHIDA YOSHITAKA (JP)
KONISHI TAKURO (JP)
MACHIDA YOSHITAKA (JP)
International Classes:
B23B47/34; B23Q11/00; B25D17/18
Foreign References:
JP2008207288A | 2008-09-11 | |||
JPH04223869A | 1992-08-13 | |||
JPH08218868A | 1996-08-27 | |||
JPH07164224A | 1995-06-27 | |||
JP2006314878A | 2006-11-24 | |||
JPH04193486A | 1992-07-13 | |||
JP2006102854A | 2006-04-20 | |||
JPH04226850A | 1992-08-17 |
Other References:
See also references of EP 2324944A4
Attorney, Agent or Firm:
ISHIDA, YOSHIKI (JP)
Yoshiki Ishida (JP)
Yoshiki Ishida (JP)
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