JP6068134B2 - 電動工具 - Google Patents
電動工具 Download PDFInfo
- Publication number
- JP6068134B2 JP6068134B2 JP2012284779A JP2012284779A JP6068134B2 JP 6068134 B2 JP6068134 B2 JP 6068134B2 JP 2012284779 A JP2012284779 A JP 2012284779A JP 2012284779 A JP2012284779 A JP 2012284779A JP 6068134 B2 JP6068134 B2 JP 6068134B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- forming member
- labyrinth
- motor
- elastic body
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims description 55
- 229920001971 elastomer Polymers 0.000 description 36
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000004952 Polyamide Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
- Sealing Of Bearings (AREA)
- Portable Power Tools In General (AREA)
- Support Of The Bearing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
Claims (3)
- 駆動源であるモータと、前記モータを収納するハウジングと、前記モータのモータ軸と、前記モータ軸を軸支するベアリングと、前記ベアリングの外輪に装着されるラビリンス形成部材と、前記ベアリングが支持されるベアリング収納穴と、前記ラビリンス形成部材に隣接して配置され前記ラビリンス形成部材と協働してラビリンス隙間を形成する防塵カラーと、を備える電動工具において、
前記ラビリンス形成部材は、外周部に弾性体装着部が形成されており、前記弾性体装着部には弾性体が装着され、前記ラビリンス形成部材が装着された前記ベアリングは、前記弾性体を介して前記ベアリング収納穴に支持されており、
前記弾性体の外面は、前記ベアリング収納穴の内周面に接しており、前記ラビリンス形成部材の外面と前記内周面との間には隙間が形成されており、
前記防塵カラーの外周面と前記内周面との間にラビリンス隙間が形成されており、
前記ラビリンス形成部材と前記防塵カラーとは前記内周面の内側に配置されていることを特徴とする電動工具。 - 前記弾性体装着部は周溝として形成されていることを特徴とする請求項1に記載の電動工具。
- 前記弾性体はリング形状として形成されていることを特徴とする請求項1又は2に記載の電動工具。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012284779A JP6068134B2 (ja) | 2012-12-27 | 2012-12-27 | 電動工具 |
CN201310585300.6A CN103904809B (zh) | 2012-12-27 | 2013-11-19 | 电动工具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012284779A JP6068134B2 (ja) | 2012-12-27 | 2012-12-27 | 電動工具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014124745A JP2014124745A (ja) | 2014-07-07 |
JP6068134B2 true JP6068134B2 (ja) | 2017-01-25 |
Family
ID=50996000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012284779A Active JP6068134B2 (ja) | 2012-12-27 | 2012-12-27 | 電動工具 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6068134B2 (ja) |
CN (1) | CN103904809B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015210070A1 (de) * | 2015-06-01 | 2016-12-01 | Robert Bosch Gmbh | Handwerkzeugmaschine |
JP6646373B2 (ja) * | 2015-07-23 | 2020-02-14 | 京セラインダストリアルツールズ株式会社 | 手持ち式電動工具 |
CN107914206A (zh) * | 2016-10-09 | 2018-04-17 | 苏州宝时得电动工具有限公司 | 无刷角磨机 |
CN108134470B (zh) * | 2018-03-19 | 2023-12-26 | 新誉轨道交通科技有限公司 | 紧凑型牵引电机端盖 |
EP3763467A1 (de) * | 2019-07-11 | 2021-01-13 | Hilti Aktiengesellschaft | Staubschutzkappe mit schwingungsentkopplung |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2050531B (en) * | 1979-03-09 | 1983-07-13 | Skf Uk Ltd | Conveyor roller |
CZ278254B6 (en) * | 1992-04-01 | 1993-10-13 | Bouchal Milan | Belt conveyor roller |
CN2138853Y (zh) * | 1992-10-19 | 1993-07-21 | 陈元祥 | 电机防震、防尘垫套 |
JPH076521U (ja) * | 1993-06-30 | 1995-01-31 | 日本精工株式会社 | 転がり軸受のクリープ防止装置 |
JPH07299606A (ja) * | 1994-04-28 | 1995-11-14 | Hitachi Koki Co Ltd | 軸受防塵構造 |
JPH08182242A (ja) * | 1994-12-27 | 1996-07-12 | Kosoku Denki Kk | モータ用ベアリングの防塵構造 |
DE19939171A1 (de) * | 1999-08-20 | 2001-03-08 | Bosch Gmbh Robert | Handwerkzeugmaschine |
US20040026867A1 (en) * | 2002-08-09 | 2004-02-12 | Adams David J. | Bearing seal |
JP2004092750A (ja) * | 2002-08-30 | 2004-03-25 | Nsk Ltd | 転がり軸受 |
JP2005246542A (ja) * | 2004-03-04 | 2005-09-15 | Hitachi Koki Co Ltd | 電動工具 |
JP4593387B2 (ja) * | 2005-07-04 | 2010-12-08 | 株式会社マキタ | 電動工具 |
JP2008213074A (ja) * | 2007-03-02 | 2008-09-18 | Disco Abrasive Syst Ltd | 駆動機構及び切削装置 |
CN201431897Y (zh) * | 2009-05-19 | 2010-03-31 | 永城煤电控股集团有限公司 | 双齿辊破碎机轴承防尘迷宫密封组件 |
CA2819361C (en) * | 2010-12-01 | 2018-06-12 | Parker-Hannifin Corporation | Bearing isolator seal |
JP2013151977A (ja) * | 2012-01-25 | 2013-08-08 | Jtekt Corp | 転がり軸受装置 |
-
2012
- 2012-12-27 JP JP2012284779A patent/JP6068134B2/ja active Active
-
2013
- 2013-11-19 CN CN201310585300.6A patent/CN103904809B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
JP2014124745A (ja) | 2014-07-07 |
CN103904809A (zh) | 2014-07-02 |
CN103904809B (zh) | 2016-08-17 |
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