WO2007081033A3 - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- WO2007081033A3 WO2007081033A3 PCT/JP2007/050536 JP2007050536W WO2007081033A3 WO 2007081033 A3 WO2007081033 A3 WO 2007081033A3 JP 2007050536 W JP2007050536 W JP 2007050536W WO 2007081033 A3 WO2007081033 A3 WO 2007081033A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- yoke
- magnets
- electric tool
- dust guard
- engaging
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
- H02K7/145—Hand-held machine tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/008—Cooling means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/091—Electrically-powered tool components
- B25D2250/095—Electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Power Tools In General (AREA)
- Dc Machiner (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The electric tool comprises: a generally cylindrical yoke 31; a plurality of magnets 32 fixed through a circumferential clearance to the inner circumference of said yoke 31; an armature 41 rotatably arranged on the inner side of said yoke 31 through a radial clearance between said yoke 31 and the magnets 32; and a dust guard 33 fitted in one axial end of said yoke 31. The dust guard 33 is equipped integrally with a plurality of engaging protrusions 33b engaging with the circumferential clearance between said magnets 32 in said yoke 31.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006003435A JP4367415B2 (en) | 2006-01-11 | 2006-01-11 | Electric tool |
JP2006-003435 | 2006-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007081033A2 WO2007081033A2 (en) | 2007-07-19 |
WO2007081033A3 true WO2007081033A3 (en) | 2008-06-19 |
Family
ID=38256723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/050536 WO2007081033A2 (en) | 2006-01-11 | 2007-01-10 | Electric tool |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4367415B2 (en) |
WO (1) | WO2007081033A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009026519A1 (en) | 2009-05-27 | 2010-12-02 | Robert Bosch Gmbh | Machine tool, in particular hand tool |
JP5722156B2 (en) * | 2011-08-02 | 2015-05-20 | 株式会社マキタ | Electric tool |
US10328567B2 (en) | 2015-10-14 | 2019-06-25 | Black & Decker Inc. | Brushless motor system for power tools |
JP6827198B2 (en) * | 2016-12-07 | 2021-02-10 | パナソニックIpマネジメント株式会社 | Brushless motors and power tools |
JP7159043B2 (en) * | 2018-12-28 | 2022-10-24 | 株式会社マキタ | impact tool |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3147418A1 (en) * | 1981-11-30 | 1983-06-01 | Black & Decker Inc | Electrical tool, especially a hand tool |
DE3922514A1 (en) * | 1989-07-08 | 1991-01-17 | Licentia Gmbh | Collector cooling arrangement for electrically-powered hand tool - increases flow of air around collector by guidance through ring with spacing commensurate with desired flow |
WO2003066262A2 (en) * | 2002-02-04 | 2003-08-14 | Milwaukee Electric Tool Corporation | Electrical devices including a switched reluctance motor |
US20040027010A1 (en) * | 2001-03-02 | 2004-02-12 | Hitachi Koko Co., Ltd. | Motor-driven tool |
DE202004018937U1 (en) * | 2003-12-23 | 2005-02-24 | TROY ENTERPRISE CO., LTD., San Chung | Motor with wave-shaped housing |
EP1575148A1 (en) * | 2004-03-10 | 2005-09-14 | Hitachi Koki Co., Ltd. | Power tool |
-
2006
- 2006-01-11 JP JP2006003435A patent/JP4367415B2/en active Active
-
2007
- 2007-01-10 WO PCT/JP2007/050536 patent/WO2007081033A2/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3147418A1 (en) * | 1981-11-30 | 1983-06-01 | Black & Decker Inc | Electrical tool, especially a hand tool |
DE3922514A1 (en) * | 1989-07-08 | 1991-01-17 | Licentia Gmbh | Collector cooling arrangement for electrically-powered hand tool - increases flow of air around collector by guidance through ring with spacing commensurate with desired flow |
US20040027010A1 (en) * | 2001-03-02 | 2004-02-12 | Hitachi Koko Co., Ltd. | Motor-driven tool |
WO2003066262A2 (en) * | 2002-02-04 | 2003-08-14 | Milwaukee Electric Tool Corporation | Electrical devices including a switched reluctance motor |
DE202004018937U1 (en) * | 2003-12-23 | 2005-02-24 | TROY ENTERPRISE CO., LTD., San Chung | Motor with wave-shaped housing |
EP1575148A1 (en) * | 2004-03-10 | 2005-09-14 | Hitachi Koki Co., Ltd. | Power tool |
Also Published As
Publication number | Publication date |
---|---|
JP4367415B2 (en) | 2009-11-18 |
WO2007081033A2 (en) | 2007-07-19 |
JP2007185717A (en) | 2007-07-26 |
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