WO2009112099A1 - Machine-outil électroportative - Google Patents

Machine-outil électroportative Download PDF

Info

Publication number
WO2009112099A1
WO2009112099A1 PCT/EP2008/065706 EP2008065706W WO2009112099A1 WO 2009112099 A1 WO2009112099 A1 WO 2009112099A1 EP 2008065706 W EP2008065706 W EP 2008065706W WO 2009112099 A1 WO2009112099 A1 WO 2009112099A1
Authority
WO
WIPO (PCT)
Prior art keywords
hand tool
tool according
outer shell
air
drive motor
Prior art date
Application number
PCT/EP2008/065706
Other languages
German (de)
English (en)
Inventor
Adolf Zaiser
Jens Blum
Marco Braun
Heiko Roehm
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2009112099A1 publication Critical patent/WO2009112099A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B23Q11/0096—Safety devices protecting the operator, e.g. against accident or noise protecting against noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/12—Arrangements for cooling or lubricating parts of the machine
    • B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
    • B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
    • 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

Definitions

  • the invention relates to a hand tool, in particular with an electric motor oscillating driven machining tool, according to the preamble of claims 1 or 2.
  • Hand tool machines of the aforementioned type are known from WO 87/02924 and in various embodiments also from practice.
  • an orbital sander with an elongate housing which then has a gear head on its housing part accommodating the drive motor, in the region of which the respective oscillatingly driven machining tool is arranged when the oscillation axis lies transversely to the longitudinal extent of the housing.
  • a handle is also suitable for this
  • the invention is based on the object, a hand tool of the type mentioned without affecting their range of application in particular from the viewpoints of
  • the handle region in particular the gear head, is provided with an air-carrying, in particular a cooling air leading sheath.
  • the exhaust air arising on the engine side can be diverted in the direction of the tool holder and used there for blowing out the working environment.
  • the possibility to acoustically shield the gear head thus thus to form a protective cover over the casing, which substantially reduces the drive-side noise emission, especially in the case of oscillating mechanical drives.
  • the air duct can also be used as a cooling air duct, via which cooling of the gear head is ensured and at the same time it is ensured that when using the gear head as a handle of the handle portion formed by the sheath is pleasantly tempered temperature, about the design and / or assignment the sheathing to the gear head and a vibration damping effect is achieved, the possible harmful effects on the vibration on the vibration Users at least largely, and even with frequent use avoids.
  • the jacket which preferably consists of an electrically insulating and elastically deformable material such as rubber or plastic, can also ensure that metallic, and thus electrically conductive materials can be used for the particularly stressed area of the gear head, without the user , For example, when cutting electrical conductors through the machining tool is endangered by electric shock.
  • the invention also makes it possible, by the design of the air ducts, for example by the integration of the air ducts in the casing, this form so that in various access positions of the user on the casing respectively favorable handling and guiding properties are given, namely also for different users.
  • the casing according to the invention can be achieved practically a Doppelschaltechnik the gear head, the sheath preferably integrally mounted as a cap or pushed onto the gear head and wherein the gear head with its housing forms only an inner shell, between the shell and the outer shell no independent Fasteners are required.
  • a deferred or wound up jacket can overlap the transmission head in particular axially connect to the drive motor receiving housing part and be connected in this front-side connection area with the motor-side housing part.
  • such a configuration is also suitable for machines in which the sheath forms the outer shell of a double-shell gear head whose inner shell is formed by the housing of the gear head and, for example due to design in contour and / or course is not adapted to the shell, possibly also with against the - A -
  • Sheath cantilevered ribs or webs in particular in the form of cooling fins or cooling webs, is provided so that an adaptation of given constructions to an equipment with an additional sheath is not required.
  • this can be provided with corresponding guide channels, or be designed with directed against the inner shell ribs or webs, which are preferably formed radially elastic.
  • gear head in one-piece training double-shell, and preferably at least partially over the inner shell worn outer shell, according to this function for inner and outer shell despite one-piece production and different materials are preferably used and the supporting support is preferably elastic.
  • Fig. 1 in view a partial view of a hand tool with oscillating Anlagenn
  • FIG. 2 in a simplified representation of a longitudinal section through the hand tool of FIG. 1, and
  • Fig. 3 to 6 in various embodiments schematic wall cross-sections of the gear head of the machine housing of a power tool with air to the gear head jacket.
  • a power tool 1 an orbital sander is shown in Fig. 1 in detail, the elongated, rod-shaped design has a machine housing 2, which, as shown in Fig. 2, an electric drive motor 3 receiving housing part 4, to the axially
  • Gear head 5 connects.
  • the gear head 5 receives in the region of its front, from the drive motor 3 receiving housing part 4 remote end on a tool holder 6 expiring shaft 7, with a machining tool 8 is rotatably connected.
  • Both the machine housing 2 and the gear head 5 serve the user of the power tool 1 as a handle area for holding and guiding the power tool 1 with at least one hand.
  • the shaft 7 extends transversely to the longitudinal axis 9 of the rod-shaped machine housing 2, with the drive motor 3 receiving housing part 4 of the gear head 5, which is not shown in detail axially flanged.
  • the gear head 5 is formed double-shell in the embodiment and has an inner shell 10 which receives the lying in the connection of the drive motor 3 to the shaft 7 gear 11.
  • the gear 11 is formed as a vibrating gear and has a driven by the output shaft 12 of the drive motor 3 eccentric shaft 13, on the eccentric 14 of the swing arm 15 is mounted, via which the tool holder 6 supporting shaft 7 is driven to oscillate.
  • the double-shell gear head 5 has encompassing the inner shell 10, a shell 16 forming outer shell 17, which is pushed in the embodiment illustrated in FIG. 2 as a separate component on the inner shell 10 and quasi forms a casing to the inner shell 10, wherein the outer shell 17 frontally to the housing part 4 preferably, as shown, running connects and axially against the
  • Housing part 4 is fixed. The determination is indicated in Fig. 1 by axial screw 18, emanating from pockets 19 of the outer shell 17.
  • the drive motor 3 is axially overflowed by cooling air, which is sucked in over the transition to the gear head 5 radial fan 20 of the drive motor 3 and pressed into the air guide 21, which through the outer shell 17, the one as a handle cover formed sheath 16 forms, and the inner shell 10 is limited.
  • the so limited air duct can be designed as substantially lying between the inner shell 10 and outer shell 17 annular space or be divided into channels, the air outlet preferably takes place via an enclosing to the shaft 7 annular space 22 against the tool holder 6.
  • Fig. 3 to 6 illustrate in sections according to III-III in Fig. 2 in a highly schematic form the Doppelschaltechnik the gear head 5 with inner shell 10 and outer shell 17, wherein the outer shell 17, as indicated in Fig. 3, a deferred to the inner shell 10 handle cover forms.
  • the inner shell 10 is provided with cooling ribs 23 extending in the direction of flow, these cooling ribs 23 preferably ending at a distance from the outer shell 17 in the construction position, when the outer shell 17 according to FIG. 1 is placed over the inner shell 10 as a grip shell and not on the inner shell 10, but is carried on the housing part 4 analogous to Fig. 1.
  • Outer shell 17 is preferably in the range of about 0.1 to 1 mm, so that both a heating of the outer shell 17 through Heat conduction is avoided as well as a vibrational decoupling between the outer shell 17 and the inner shell 10 is reached.
  • the inner shell 10 may be associated with cooling fins 23, but the outer shell 17 preferably correspondingly extending ribs 25, wherein these ribs 25 as stiffening ribs preferably lie on gap to the cooling fins 23, so that an improved support of particular elastic yielding designed outer shell 17 results against the inner shell 10 in areas of respective support.
  • FIG. 5 A corresponding enlargement of the cooling channels at low rib heights is illustrated in FIG. 5, wherein here cooling ribs 23 and stiffening ribs 25 face each other and, in particular in this embodiment, a radially elastic formation of the stiffening ribs 25 may be appropriate, as for example by the illustrated triangular shape of the stiffening ribs 25th is reached.
  • FIG. 6 shows an embodiment with angle-shaped support profiles 26, which have a web 27 projecting from the outer shell 17 against the inner shell 10 and an adjoining leg 28 spaced from the outer shell 17 and possibly parallel to its circumference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Power Tools In General (AREA)

Abstract

L’invention concerne une machine-outil électroportative (1) comprenant notamment un outil d’usinage (8) à entraînement oscillant qui présente une zone poignée (4, 5) qui se termine par un logement d’outil (6) et à laquelle est associée une enveloppe (16) de ventilation.
PCT/EP2008/065706 2008-03-12 2008-11-18 Machine-outil électroportative WO2009112099A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810000613 DE102008000613A1 (de) 2008-03-12 2008-03-12 Handwerkzeugmaschine
DE102008000613.0 2008-03-12

Publications (1)

Publication Number Publication Date
WO2009112099A1 true WO2009112099A1 (fr) 2009-09-17

Family

ID=40364436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/065706 WO2009112099A1 (fr) 2008-03-12 2008-11-18 Machine-outil électroportative

Country Status (2)

Country Link
DE (1) DE102008000613A1 (fr)
WO (1) WO2009112099A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103596731A (zh) * 2011-06-16 2014-02-19 罗伯特·博世有限公司 工具机装置
WO2016202178A1 (fr) * 2015-06-15 2016-12-22 覃桂才 Outil électrique portatif

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009060041B4 (de) 2009-12-21 2022-01-05 Att Automotivethermotech Gmbh Motorkühlsystem mit Kühlmittelabsperrvorrichtung
DE102009060039B4 (de) 2009-12-21 2024-06-06 Att Automotivethermotech Gmbh Motorkühl- und Heizsystem mit Maßnahmen zur Kühlmitteltemperatursteigerung
DE102010029794A1 (de) * 2010-06-08 2011-12-08 Robert Bosch Gmbh Handwerkzeugmaschine
DE202011001475U1 (de) * 2011-01-13 2011-03-17 Metabowerke Gmbh Elektrowerkzeugmaschine, insbesondere eine Schleif- oder Poliermaschine
EP2505307B1 (fr) * 2011-03-31 2014-01-08 Makita Corporation Outil électrique
JP5836621B2 (ja) * 2011-03-31 2015-12-24 株式会社マキタ 動力工具
DE102012103603A1 (de) * 2012-04-24 2013-10-24 C. & E. Fein Gmbh Handführbare Werkzeugmaschine mit Lüftereinrichtung
DE102013204985A1 (de) * 2013-03-21 2014-10-09 Robert Bosch Gmbh Handwerkzeugmaschine
DE202019103088U1 (de) * 2019-05-29 2020-09-01 Robert Bosch Gmbh Handwerkzeugmaschine
CN112605449A (zh) * 2020-11-13 2021-04-06 深圳市绿星科技有限公司 一种模具加工用切割装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1437304A (en) * 1973-07-14 1976-05-26 Metabowerke Kg Motordriven portable tool with sound-absorbing housing
DE19703094A1 (de) * 1996-02-06 1997-08-07 Bosch Gmbh Robert Handwerkzeugmaschine mit Vorsatzgerät
EP1491290A1 (fr) * 2003-06-27 2004-12-29 Festool GmbH Machine-outil portative
EP1555092A2 (fr) * 2004-01-08 2005-07-20 Makita Corporation Dispositif de refroidissement d'une machine-outil portable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775821B2 (ja) 1985-11-15 1995-08-16 ファイン―フェルバルツング ゲゼルシャフト ミット ベシュレンクテル ハフツング 可搬式研削盤

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1437304A (en) * 1973-07-14 1976-05-26 Metabowerke Kg Motordriven portable tool with sound-absorbing housing
DE19703094A1 (de) * 1996-02-06 1997-08-07 Bosch Gmbh Robert Handwerkzeugmaschine mit Vorsatzgerät
EP1491290A1 (fr) * 2003-06-27 2004-12-29 Festool GmbH Machine-outil portative
EP1555092A2 (fr) * 2004-01-08 2005-07-20 Makita Corporation Dispositif de refroidissement d'une machine-outil portable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103596731A (zh) * 2011-06-16 2014-02-19 罗伯特·博世有限公司 工具机装置
US9522465B2 (en) 2011-06-16 2016-12-20 Robert Bosch Gmbh Machine tool device
WO2016202178A1 (fr) * 2015-06-15 2016-12-22 覃桂才 Outil électrique portatif
US10442070B2 (en) 2015-06-15 2019-10-15 Guicai Qin Hand-held electric tool

Also Published As

Publication number Publication date
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