WO2022178661A1 - Outil électrique doté d'un ensemble anti-vibration - Google Patents
Outil électrique doté d'un ensemble anti-vibration Download PDFInfo
- Publication number
- WO2022178661A1 WO2022178661A1 PCT/CN2021/077418 CN2021077418W WO2022178661A1 WO 2022178661 A1 WO2022178661 A1 WO 2022178661A1 CN 2021077418 W CN2021077418 W CN 2021077418W WO 2022178661 A1 WO2022178661 A1 WO 2022178661A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outer housing
- power tool
- vibration member
- vibration
- tool according
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 claims description 8
- 238000007373 indentation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- B25F5/006—Vibration damping means
Definitions
- the present invention relates to a power tool having an anti-vibration assembly to reduce vibration transmission to its outer housing.
- a power tool comprising:
- an inner housing at least partially disposed within the outer housing and configured to receive a portion of the supporting unit
- the first anti-vibration member extends between the supporting unit and the outer housing in a direction substantially perpendicular to an axial direction of the output shaft.
- the inner housing has an opening through which the first anti-vibration member passes so that the first anti-vibration member extends between the supporting unit and the outer housing
- the first anti-vibration member is movable between the outer housing and the supporting unit.
- the supporting unit is a bushing.
- the supporting unit comprises a bearing and a bushing sleeved on and coupled to the bushing
- the first anti-vibration member is independent from both the supporting unit and the outer housing.
- the first anti-vibration member is formed by overmolding integrally with at least a portion of the outer housing.
- the first anti-vibration member is formed with a groove to engage with at least a portion of the outer housing and/or the supporting unit.
- the first anti-vibration member is an elastomeric element.
- the anti-vibration assembly comprises a pair of said first anti-vibration members symmetrically disposed on opposite sides of the supporting unit.
- the first anti-vibration member is a rubber pin.
- the anti-vibration assembly further comprises a second anti-vibration member disposed between with the inner housing and the outer housing at a location around the output shaft.
- the anti-vibration assembly further comprises a third anti-vibration member disposed between the inner housing and the outer housing around the motor.
- Figure 1 is a perspective view of a first embodiment showing a power tool containing an anti-vibration assembly and an inner housing of the power tool, with an outer housing hidden, in accordance with the present invention.
- Figure 2 is a cross sectional view along the plane A-A’ of the power tool of Figure 1 with an outer housing.
- Figure 3 is an aggregated right view of the power tool of Figure 1 with a half piece of outer housing.
- Figure 4 is a cross sectional view of a second embodiment showing a power tool containing an anti-vibration assembly and an inner housing of the power tool in accordance with the present invention.
- the present invention pertains to a power tool which is provided with an anti-vibration assembly to effectively reduce transmission of vibration in the power tool.
- the power tool is a portable power tool that has an inner housing 100, an output shaft 200 driven by a motor (not shown) to perform an operation on a work piece (not shown) , a bearing 310 that is partially supported by the inner housing 100 and bears the output shaft 200.
- the bearing 310 is for example a needle bearing.
- the portable power tool also has an outer housing 700 (shown in Figures 2 and 3) to receive at least a portion of the inner housing 100. A portion of the outer housing 700 is configured as a handle portion (not shown) that can be gripped by a user.
- the motor and the output shaft 200 generate vibration when the power tool is in operation. Particularly, the vibration is caused by the output shaft and moving components (not shown) near the output shaft. The vibration is transmitted to the inner housing 100 which is in indirect contact with the output shaft. The vibration then could be transmitted to the outer housing 700 which receives the inner housing 100.
- the anti-vibration assembly further contains a third anti-vibration member 600 disposed between and in contact with the inner housing 100 and the outer housing 700 so as to reduce vibration transmission from the inner housing 100 to the outer housing 700.
- the third anti-vibration member 600 contacts with the second end of the inner housing 100 via a first intermediate member 610.
- the third-anti-vibration member 600 is located around the motor.
- the third anti-vibration member 600 may be in direct contact with the second end of the inner housing 100.
- the third anti-vibration member 600 physically isolates the inner housing 100 and the outer housing 700 and reduces vibration transmission therebetween.
- the shape of the third anti-vibration member 500 may be tailored to at least partially fit in the space between the outer housing 700 and the inner housing 100 and at the second end.
- first end of the inner housing and the “second end of the inner housing” are termed only for the purpose to distinguish one another, and may be or may not be a distal end of the inner housing.
- the supporting unit is a flanged bushing 320 that is partially supported by the inner housing 100 and bears the output shaft 200.
- the anti-vibration assembly comprises a first anti-vibration member 420, for example a rubber ring, adapted to be engaged with at least a portion of the flanged bushing 320.
- the first anti-vibration member 420 is provided with a groove in one side to receive a flange of the flanged bushing 320, and an opposite side of the first anti-vibration member 420 contacts with the inner wall of the outer housing 700.
- the first anti-vibration member can be formed integrally with the bushing.
- the outer housing 700 may be provided with a groove or a socket 710 to receive an end of each first anti-vibration member 420.
- the first anti-vibration member is shown as a rubber pin or a rubber ring independent from the bearing and the outer housing.
- the first anti-vibration member could also be a coil spring.
- the first anti-vibration member could be made using overmolding and as part of an outer housing.
- the power tool is a multi-tool.
- skilled persons in the art should realize that other types of power tools can also be applied with the anti-vibration structure of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Portable Power Tools In General (AREA)
Abstract
La présente invention concerne un outil électrique comprenant : un logement externe ; un moteur disposé à l'intérieur du logement externe ; un arbre de sortie pour effectuer une opération sur une pièce, l'arbre de sortie étant conçu pour être entraîné par le moteur ; un palier conçu pour porter l'arbre de sortie ; un logement interne au moins partiellement disposé à l'intérieur du logement externe et conçu pour recevoir une partie du palier ; et un ensemble anti-vibration conçu pour réduire les vibrations au logement externe, l'ensemble anti-vibration comprenant un premier élément anti-vibration monté entre le palier et le logement externe, le premier élément anti-vibration étant conçu pour être en contact direct ou indirect avec le palier et le logement externe et étant libre de contact direct avec le logement interne.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21830378.2A EP4297933A1 (fr) | 2021-02-23 | 2021-02-23 | Outil électrique doté d'un ensemble anti-vibration |
CN202190000143.6U CN216883814U (zh) | 2021-02-23 | 2021-02-23 | 具有防振组件的动力工具 |
PCT/CN2021/077418 WO2022178661A1 (fr) | 2021-02-23 | 2021-02-23 | Outil électrique doté d'un ensemble anti-vibration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2021/077418 WO2022178661A1 (fr) | 2021-02-23 | 2021-02-23 | Outil électrique doté d'un ensemble anti-vibration |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022178661A1 true WO2022178661A1 (fr) | 2022-09-01 |
Family
ID=82210679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2021/077418 WO2022178661A1 (fr) | 2021-02-23 | 2021-02-23 | Outil électrique doté d'un ensemble anti-vibration |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4297933A1 (fr) |
CN (1) | CN216883814U (fr) |
WO (1) | WO2022178661A1 (fr) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729194A (en) * | 1985-05-25 | 1988-03-08 | Festo Kg | Balanced orbital sander/grinder |
JP2004249421A (ja) * | 2003-02-21 | 2004-09-09 | Hitachi Koki Co Ltd | 携帯用電動工具 |
CN201735891U (zh) * | 2009-02-27 | 2011-02-09 | 株式会社牧田 | 电动工具的减速机构 |
CN204172000U (zh) * | 2014-11-05 | 2015-02-25 | 浙江博大实业有限公司 | 充电式多功能机 |
JP2015104772A (ja) * | 2013-11-29 | 2015-06-08 | 日立工機株式会社 | 動力工具 |
JP2015199167A (ja) * | 2014-04-08 | 2015-11-12 | 株式会社マキタ | 電動工具 |
CN105856142A (zh) * | 2015-02-09 | 2016-08-17 | 松下知识产权经营株式会社 | 冲击旋转工具 |
CN205497394U (zh) * | 2015-02-15 | 2016-08-24 | 苏州宝时得电动工具有限公司 | 动力工具 |
CN210383693U (zh) * | 2019-06-19 | 2020-04-24 | 东莞市至拙电器科技有限公司 | 一种厨师机 |
-
2021
- 2021-02-23 WO PCT/CN2021/077418 patent/WO2022178661A1/fr active Application Filing
- 2021-02-23 CN CN202190000143.6U patent/CN216883814U/zh active Active
- 2021-02-23 EP EP21830378.2A patent/EP4297933A1/fr active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729194A (en) * | 1985-05-25 | 1988-03-08 | Festo Kg | Balanced orbital sander/grinder |
JP2004249421A (ja) * | 2003-02-21 | 2004-09-09 | Hitachi Koki Co Ltd | 携帯用電動工具 |
CN201735891U (zh) * | 2009-02-27 | 2011-02-09 | 株式会社牧田 | 电动工具的减速机构 |
JP2015104772A (ja) * | 2013-11-29 | 2015-06-08 | 日立工機株式会社 | 動力工具 |
JP2015199167A (ja) * | 2014-04-08 | 2015-11-12 | 株式会社マキタ | 電動工具 |
CN204172000U (zh) * | 2014-11-05 | 2015-02-25 | 浙江博大实业有限公司 | 充电式多功能机 |
CN105856142A (zh) * | 2015-02-09 | 2016-08-17 | 松下知识产权经营株式会社 | 冲击旋转工具 |
CN205497394U (zh) * | 2015-02-15 | 2016-08-24 | 苏州宝时得电动工具有限公司 | 动力工具 |
CN210383693U (zh) * | 2019-06-19 | 2020-04-24 | 东莞市至拙电器科技有限公司 | 一种厨师机 |
Also Published As
Publication number | Publication date |
---|---|
EP4297933A1 (fr) | 2024-01-03 |
CN216883814U (zh) | 2022-07-05 |
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