JP2007185717A - 電動工具 - Google Patents
電動工具 Download PDFInfo
- Publication number
- JP2007185717A JP2007185717A JP2006003435A JP2006003435A JP2007185717A JP 2007185717 A JP2007185717 A JP 2007185717A JP 2006003435 A JP2006003435 A JP 2006003435A JP 2006003435 A JP2006003435 A JP 2006003435A JP 2007185717 A JP2007185717 A JP 2007185717A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- dust guard
- magnet
- magnets
- power tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
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- 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)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Power Tools In General (AREA)
- Dc Machiner (AREA)
Abstract
【解決手段】略円筒状のヨーク31と、該ヨーク31の内周に周方向隙間を設けて固着された複数のマグネット32と、該ヨーク31の内側にマグネット32との間に径方向隙間を設けて回転可能に配置されたアマチュア41と、前記ヨーク31の軸方向一端に嵌着されたダストガード33を備えた直流モータを駆動源とする電動工具において、前記ダストガード33に、前記ヨーク31内の前記マグネット32間に形成される周方向隙間に係合する複数の係合突起33bを一体に形成する。
【選択図】図2
Description
図2(a)はマグネット組の側断面図((b)のA−A線断面図)、同図(b)は同マグネット組の正面図((a)の矢視B方向の図)、同図(c)は(a)のC−C線断面図、図3はマグネット組の分解斜視図、図4はマグネット組に形成される風路断面を示す正面図である。
次に、本発明の実施の形態を図8及び図9に基づいて説明する。
2 ハウジング
2A,2B 分割片
2B−1 ハンドル部
2B−2 胴部
2a 係合突起(第1の係合部)
3 直流モータ
4 回転軸(モータ軸)
5,6 ベアリング
7 冷却ファン
8 ファンガイド
9 ピニオン
10 電源コード
11 回路(AC/DCコンバータ)
12 スイッチ
13 中間軸
14 ベアリング
15 レシプロベアリング
16,17 ギヤ
18 シリンダ
19 ギヤ
20 ピストン
21 中間子
22 圧力室
23 先端工具
24 打撃子
25 カーボンブラシ
30 マグネット組
31 ヨーク
32 マグネット
33 ダストガード
33a ダストガード本体
33b 係合突起
33b−1 スリット
33c 凸部
33d 係合溝(第2の係合部)
Claims (6)
- 略円筒状のヨークと、該ヨークの内周に周方向隙間を設けて固着された複数のマグネットと、該マグネットの内側にマグネットとの間に径方向隙間を設けて回転可能に配置されたアマチュアと、前記ヨークの軸方向一端に嵌着されたダストガードを備えた直流モータを駆動源とする電動工具において、
前記ダストガードに、前記ヨーク内の前記マグネット間に形成される周方向隙間に係合する複数の係合突起を一体に形成したことを特徴とする電動工具。 - 前記ダストガードは、前記ヨークの軸方向端面から軸方向外方へ突出するリング状の本体部を有し、該本体部に前記係合突起を一体に突設したことを特徴とする請求項1記載の電動工具。
- 前記係合突起を前記ヨークの内周形状に沿った円弧曲面状としたことを特徴とする請求項1又は2記載の電動工具。
- 前記係合突起に軸方向に延びるスリットを形成したことを特徴とする請求項1〜3の何れかに記載の電動工具。
- 筒状の胴部を有するハウジングの前記胴部内の一部に第1の係合部を形成し、該第1の係合部と回転方向で係合する第2の係合部を前記ダストガードに形成したことを特徴とする請求項1〜4の何れかに記載の電動工具。
- 前記ダストガードを、前記ヨークの前記ハウジングへの組込方向前端部に配置したことを特徴とする請求項5記載の電動工具。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006003435A JP4367415B2 (ja) | 2006-01-11 | 2006-01-11 | 電動工具 |
PCT/JP2007/050536 WO2007081033A2 (en) | 2006-01-11 | 2007-01-10 | Electric tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006003435A JP4367415B2 (ja) | 2006-01-11 | 2006-01-11 | 電動工具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007185717A true JP2007185717A (ja) | 2007-07-26 |
JP4367415B2 JP4367415B2 (ja) | 2009-11-18 |
Family
ID=38256723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006003435A Active JP4367415B2 (ja) | 2006-01-11 | 2006-01-11 | 電動工具 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4367415B2 (ja) |
WO (1) | WO2007081033A2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012528013A (ja) * | 2009-05-27 | 2012-11-12 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 工作機械 |
JP2020104238A (ja) * | 2018-12-28 | 2020-07-09 | 株式会社マキタ | 打撃工具 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5722156B2 (ja) * | 2011-08-02 | 2015-05-20 | 株式会社マキタ | 電動工具 |
US10500708B2 (en) * | 2015-10-14 | 2019-12-10 | Black & Decker Inc. | Power tool |
JP6827198B2 (ja) * | 2016-12-07 | 2021-02-10 | パナソニックIpマネジメント株式会社 | ブラシレスモータおよび電動工具 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3147418C2 (de) * | 1981-11-30 | 1986-05-22 | Black & Decker, Inc. (Eine Gesellschaft N.D.Ges.D. Staates Delaware), Newark, Del. | Isolierstoffteil für Bauteile eines Elektrowerkzeugs |
DE3922514A1 (de) * | 1989-07-08 | 1991-01-17 | Licentia Gmbh | Einrichtung zur verbesserung der kuehlung des kollektors von elektrowerkzeugen |
JP3711877B2 (ja) * | 2001-03-02 | 2005-11-02 | 日立工機株式会社 | 電動工具 |
GB2422965B (en) * | 2002-02-04 | 2006-11-08 | Milwaukee Electric Tool Corp | Electrical devices including a switched reluctance motor |
TWM251388U (en) * | 2003-12-23 | 2004-11-21 | Troy Entpr Co Ltd | Motor assembling structure |
JP4301040B2 (ja) * | 2004-03-10 | 2009-07-22 | 日立工機株式会社 | 電動工具 |
-
2006
- 2006-01-11 JP JP2006003435A patent/JP4367415B2/ja active Active
-
2007
- 2007-01-10 WO PCT/JP2007/050536 patent/WO2007081033A2/en active Application Filing
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012528013A (ja) * | 2009-05-27 | 2012-11-12 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 工作機械 |
US9399275B2 (en) | 2009-05-27 | 2016-07-26 | Robert Bosch Gmbh | Machine tool, in particular hand machine tool |
JP2020104238A (ja) * | 2018-12-28 | 2020-07-09 | 株式会社マキタ | 打撃工具 |
JP7159043B2 (ja) | 2018-12-28 | 2022-10-24 | 株式会社マキタ | 打撃工具 |
Also Published As
Publication number | Publication date |
---|---|
WO2007081033A3 (en) | 2008-06-19 |
JP4367415B2 (ja) | 2009-11-18 |
WO2007081033A2 (en) | 2007-07-19 |
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