EP1637288B1 - Outil à main électrique amortissant les vibrations - Google Patents

Outil à main électrique amortissant les vibrations Download PDF

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Publication number
EP1637288B1
EP1637288B1 EP20050108553 EP05108553A EP1637288B1 EP 1637288 B1 EP1637288 B1 EP 1637288B1 EP 20050108553 EP20050108553 EP 20050108553 EP 05108553 A EP05108553 A EP 05108553A EP 1637288 B1 EP1637288 B1 EP 1637288B1
Authority
EP
European Patent Office
Prior art keywords
hand tool
electric hand
air
elastic portion
outer housing
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
Application number
EP20050108553
Other languages
German (de)
English (en)
Other versions
EP1637288A1 (fr
Inventor
Helmut Burger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1637288A1 publication Critical patent/EP1637288A1/fr
Application granted granted Critical
Publication of EP1637288B1 publication Critical patent/EP1637288B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25F5/008—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/20—Devices for cleaning or cooling tool or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0057—Details related to cleaning or cooling the tool or workpiece
    • B25D2217/0061—Details related to cleaning or cooling the tool or workpiece related to cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/57—Elastomers, e.g. rubber
    • 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
    • B25D2250/065—Details regarding assembling of the tool
    • 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
    • B25D2250/085—Elastic behaviour of tool components
    • 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
    • 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
    • B25D2250/371—Use of springs

Definitions

  • the object of the invention is to provide an electric hand tool with a vibration-damped percussion unit, which has an optimal cooling air flow, so that an air short circuit between the intake and the blow-out avoided and the penetration of moisture in the outer casing is largely prevented.
  • the suction area in which there is a negative pressure, from the blow-out area, in which pressure prevails, completely sealed.
  • no air short circuit can occur, with which the device has a much better efficiency and the cooling performance is improved, and on the other hand, penetrating moisture is completely removed from the air flow from the outer housing.
  • the dimensions, in particular the maximum longitudinal extension, and the formation of the elastic portion are chosen such that upon movement of the movable percussion group within the outer housing of up to 15 mm no tensile forces act on the elastic portion.
  • the exhaust air is advantageously blown by the fan from the engine in an optimally designed space without bottlenecks before it passes through the outlet air openings to the outside. Due to the targeted air flow in the blow-out area, sufficient heat is still dissipated from the percussion mechanism and the gearbox despite the cooling air preheated by the engine.

Claims (3)

  1. Outil électrique portatif (1) comprenant au moins un mécanisme de percussion (2) mis en oeuvre partiellement dans un ensemble (3) comprenant le mécanisme de percussion, qui est mobile avec un amortissement des vibrations dans un carter externe (6), le carter externe (6) présentant des orifices (7) d'aspiration d'air pour un ventilateur (8) de refroidissement,
    et au moins une conduite (11) d'air de refroidissement est disposée sur l'ensemble (3) comprenant le mécanisme de percussion vers le ventilateur (8) de refroidissement, caractérisé en ce que la conduite (11) d'air de refroidissement présente un premier tronçon (12) rigide, disposé sur le carter externe (6), et un deuxième tronçon (13) rigide, disposé sur l'ensemble (3) comprenant le mécanisme de percussion, un tronçon (14) élastique étant agencé entre le premier et le deuxième tronçons (12, 13) rigides.
  2. Outil électrique portatif selon la revendication 1, caractérisé en ce que le tronçon (14) élastique est conçu sous la forme d'un soufflet.
  3. Outil électrique portatif selon les revendications 1 ou 2, caractérisé en ce que le tronçon (14) élastique est fabriqué à partir d'un élastomère.
EP20050108553 2004-09-16 2005-09-16 Outil à main électrique amortissant les vibrations Active EP1637288B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004044822 2004-09-16

Publications (2)

Publication Number Publication Date
EP1637288A1 EP1637288A1 (fr) 2006-03-22
EP1637288B1 true EP1637288B1 (fr) 2014-08-13

Family

ID=35448091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050108553 Active EP1637288B1 (fr) 2004-09-16 2005-09-16 Outil à main électrique amortissant les vibrations

Country Status (1)

Country Link
EP (1) EP1637288B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10814468B2 (en) 2017-10-20 2020-10-27 Milwaukee Electric Tool Corporation Percussion tool
US10926393B2 (en) 2018-01-26 2021-02-23 Milwaukee Electric Tool Corporation Percussion tool

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006038756A1 (de) * 2006-08-17 2008-02-21 Marquardt Gmbh Elektrogerät, insbesondere in der Art eines Elektrohandwerkzeugs
DE102007000093A1 (de) * 2007-02-15 2008-08-21 Hilti Ag Handwerkzeuggerät
DE102007043916A1 (de) * 2007-09-14 2009-04-02 Robert Bosch Gmbh Elektrohandwerkzeugmaschine
EP2105261A1 (fr) * 2008-03-27 2009-09-30 AEG Electric Tools GmbH Outil électrique, en particulier marteau perforateur et/ou burineur
JP5477759B2 (ja) * 2008-07-30 2014-04-23 日立工機株式会社 電動工具
DE102009002982A1 (de) * 2009-05-11 2010-11-18 Robert Bosch Gmbh Handwerkzeugmaschine, insbesondere Elektrohandwerkzeugmaschine
DE102010030059A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Handgeführtes Eintreibgerät
DE102012007405B4 (de) 2012-04-16 2017-02-09 Andreas Stihl Ag & Co. Kg Arbeitsgerät
JP6258093B2 (ja) * 2014-03-24 2018-01-10 株式会社マキタ 打撃工具
EP4037161A1 (fr) * 2021-02-02 2022-08-03 Andreas Stihl AG & Co. KG Appareil de travail à tige portable
GB2619018A (en) 2022-05-23 2023-11-29 Black & Decker Inc Power tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322131A (en) * 1993-05-20 1994-06-21 Chicago Pneumatic Tool Company Vibration-reduced pneumatic tool
DE19626254A1 (de) * 1996-06-29 1998-01-08 Bosch Gmbh Robert Elektrohandwerkzeugmaschine
US6314922B1 (en) * 1998-07-23 2001-11-13 Andreas Stihl Ag & Co. Hand-held working tool
DE19833126A1 (de) * 1998-07-23 2000-01-27 Stihl Maschf Andreas Handgeführtes Arbeitsgerät
US6043575A (en) * 1999-03-05 2000-03-28 Snap-On Tools Company Power tool with air deflector for venting motor exhaust air
ATE361182T1 (de) 2001-10-15 2007-05-15 Hilti Ag Kühlluftleitung für ein elektrohandwerkzeuggerät mit elektropneumatischem schlagwerk
US7152695B2 (en) * 2002-09-20 2006-12-26 Snap-On Incorporated Power tool with air seal and vibration dampener

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10814468B2 (en) 2017-10-20 2020-10-27 Milwaukee Electric Tool Corporation Percussion tool
US11633843B2 (en) 2017-10-20 2023-04-25 Milwaukee Electric Tool Corporation Percussion tool
US10926393B2 (en) 2018-01-26 2021-02-23 Milwaukee Electric Tool Corporation Percussion tool
US11059155B2 (en) 2018-01-26 2021-07-13 Milwaukee Electric Tool Corporation Percussion tool
US11141850B2 (en) 2018-01-26 2021-10-12 Milwaukee Electric Tool Corporation Percussion tool
US11203105B2 (en) 2018-01-26 2021-12-21 Milwaukee Electric Tool Corporation Percussion tool
US11759935B2 (en) 2018-01-26 2023-09-19 Milwaukee Electric Tool Corporation Percussion tool
US11865687B2 (en) 2018-01-26 2024-01-09 Milwaukee Electric Tool Corporation Percussion tool

Also Published As

Publication number Publication date
EP1637288A1 (fr) 2006-03-22

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