EP0502363A1 - Hand-held electrical tool with housing piece made of elastically deformable material - Google Patents

Hand-held electrical tool with housing piece made of elastically deformable material Download PDF

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Publication number
EP0502363A1
EP0502363A1 EP92102791A EP92102791A EP0502363A1 EP 0502363 A1 EP0502363 A1 EP 0502363A1 EP 92102791 A EP92102791 A EP 92102791A EP 92102791 A EP92102791 A EP 92102791A EP 0502363 A1 EP0502363 A1 EP 0502363A1
Authority
EP
European Patent Office
Prior art keywords
handle
shell part
power tool
contour
shell
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
Application number
EP92102791A
Other languages
German (de)
French (fr)
Other versions
EP0502363B1 (en
Inventor
Reiner Dipl.-Ing. Ba Felger
Wilhelm Dipl.-Ing. Geis
Rudolf Dr.-Ing. Heisig
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.)
Techtronic Industries GmbH
Original Assignee
Atlas Copco Elektrowerkzeuge 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 Atlas Copco Elektrowerkzeuge GmbH filed Critical Atlas Copco Elektrowerkzeuge GmbH
Publication of EP0502363A1 publication Critical patent/EP0502363A1/en
Application granted granted Critical
Publication of EP0502363B1 publication Critical patent/EP0502363B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25F5/006—Vibration damping 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
    • B25D17/04—Handles; Handle mountings

Definitions

  • knob-shaped elevations 31 on the inside of the contour part 27 made of soft plastic, which have an additional damping effect.

Landscapes

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

Abstract

The housing part (28) consists of a supporting structure (14) made of a rigid plastic and of a contour part (27) made of a flexible plastic, the supporting structure (14) containing projections (15,16,17) provided with catch lugs (15',16',17') as well as centring cams (18,19,20) for detachable integration with the handle part (11) having corresponding undercuts and centring notches. <IMAGE>

Description

Die Erfindung bezieht sich auf eine handgeführte Elektrowerkzeugmaschine nach dem Oberbegriff des Anspruch 1.The invention relates to a hand-held power tool according to the preamble of claim 1.

Bei einer bekannten Elektrowerkzeugmaschine dieser Art (Hilti Prospekt "Produkte und Anwendungen, 01.01.1991, Seite 68, Bohrhammer TE 18 M) ist der rückwärtige Bereich des Handgriffs durch eine Halbschale gebildet, die an den anderen (vorderen) Teil des Handgriffs angeschraubt wird. Auf die an ihrer Rückseite mit kreuzförmigen Querschnitt aufweisenden Zapfen versehene Halbschale ist ein Schalenteil aus einem weich elastischen Kunststoff aufgesetzt, das mit Vertiefungen für die Aufnahme der Zapfen versehen ist. Die Zentrierung des Schalenteils an der Handgriff-Halbschale erfolgt dabei durch eine Quernut-Federverbindung und zur Sicherung gegen Lösen des Schalenteils dienen an beiden Seiten der Halbschale aufgebrachte dünne Vorsprünge, die einen Hinterschnitt aufweisende Längslippen des Schalenteils aus Weichkunststoff hintergreifen.In a known power tool of this type (Hilti brochure "Products and Applications, 01.01.1991, page 68, hammer drill TE 18 M), the rear area of the handle is formed by a half-shell, which is screwed onto the other (front) part of the handle. On the back of the half-shell, which has a cross-shaped cross-section, there is a shell part made of a soft elastic plastic, which is provided with recesses for receiving the pins. The shell part is centered on the handle half-shell by means of a transverse groove and spring connection To prevent the shell part from loosening, thin projections are provided on both sides of the half shell, which engage under the longitudinal lips of the shell part made of soft plastic and have an undercut.

Die Herstellung und Montage einer derartigen Anordnung Handgriffhalbschale - elastisches Schalenteil ist verhältnismäßig aufwendig, außerdem ist durch die gleichmäßige Materialbeschaffenheit des Schalenteils der erzielbare Dämpfungseffekt begrenzt.The manufacture and assembly of such an arrangement handle half-shell - elastic shell part is relatively expensive, and the achievable damping effect is limited by the uniform material properties of the shell part.

Der Erfindung liegt die Aufgabe zugrunde, ein Schalenteil zu schaffen, daß vergleichsweise bessere Dämpfungseigenschaften aufweist, sicher fixierbar und montagefreundlich ist.The invention has for its object to provide a shell part that has comparatively better damping properties, is securely fixable and easy to assemble.

Diese Aufgabe ist erfindungsgemäß durch ein Schalenteil gelöst, das die Merkmale des kennzeichnenden Teils des Anspruch 1 aufweist.This object is achieved according to the invention by a shell part which has the features of the characterizing part of claim 1.

Weiterbildungen und zweckmäßige Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Further developments and expedient refinements of the invention are specified in the subclaims.

Die Erfindung wird im nachstehenden anhand der Zeichnung, die ein bevorzugtes Ausführungsbeispiel eines Schalenteils veranschaulicht, erläutert.The invention is explained below with reference to the drawing, which illustrates a preferred embodiment of a shell part.

Es zeigen:

Fig. 1
eine perspektivische Ansicht des Stützgerüsts des Schalenteils,
Fig. 2
das mit dem Stützgerüst vereinigte Konturenteil aus einem Weichkunststoff,
Fig. 3
eine Seitenansicht einer zweischaligen Elektrowerkzeugmaschine ohne auf die Rückseite des Handgriffs aufgesetztes Schalenteil,
Fig. 4
eine Ansicht entsprechend Fig. 3, jedoch mit aufgesetztem Schalenteil,
Fig. 5
eine Ansicht entlang des Schnittes A-A durch Figur 4,
Fig. 6
eine Ansicht in Richtung B der Fig. 3.
Show it:
Fig. 1
a perspective view of the support structure of the shell part,
Fig. 2
the contour part made of a soft plastic combined with the support frame,
Fig. 3
2 shows a side view of a two-shell power tool without a shell part placed on the back of the handle,
Fig. 4
3, but with the shell part attached,
Fig. 5
3 shows a view along the section AA through FIG. 4,
Fig. 6
3 shows a view in direction B of FIG. 3.

Wie aus den Figuren 1,3 und 5 ersichtlich ist, weist das an die Außenkontur der Ausnehmung 10 im rückwärtigen Bereich des Handgriffs 11 der Elektrowerkzeugmaschine 13 angepaßte Stützgerüst 14 aus einem Hartkunststoff paarweise drei lappenförmige Ansätze 15, 16 und 17 auf, die mit Rastnasen 15', 16' und 17' versehen sind. An seinem oberen Ende enthält das Stützgerüst 14 drei Zentriernocken 18, 19 und 20, denen an der Unterseite des oberen Kragens 21 des aus zwei Hälften bestehenden Handgriffs 11 befindliche Zentrierausnehmungen 22, 23 zugeordnet sind.
(Siehe hierzu Fig. 3 und 6).As can be seen from FIGS. 1, 3 and 5, the support frame 14 made of a hard plastic and matched to the outer contour of the recess 10 in the rear region of the handle 11 of the power tool 13 has in pairs three tab-shaped projections 15, 16 and 17, which are provided with locking lugs 15 ', 16' and 17 'are provided. At its upper end, the support frame 14 contains three centering cams 18, 19 and 20, to which centering recesses 22, 23 located on the underside of the upper collar 21 of the handle 11 consisting of two halves are assigned.
(See Fig. 3 and 6).

Die beiden den Handgriff 11 bildenden Schalenhälften 11' und 11'' weisen, wie Fig. 3 zeigt, beim Ausführungsbeispiel jeweils drei Durchbrechungen 24, 25 und 26 auf, die jeweils hinterschnitten sind, so daß die Rastnasen 15', 16' und 17' des Stützgerüsts 14 beim Aufsetzen des in Fig. 2 veranschaulichten, mit dem Konturenteil 27 aus einem Weichkunststoff vereinigten Schalenteils 28 auf den Handgriff die Hinterschneidungen 29 hintergreifen (siehe Fig. 5). Dadurch ist ein einwandfreier Sitz des Schalenteils 28 auf der Rückseite des Handgriffs 11 gewährleistet. Der mit dem Stützgerüst 14 zweckmäßigerweise durch Spritzen vereinigte Konturenteil 27 aus Weichkunststoff ragt, wie aus Fig. 2 ersichtlich ist, handgriffseitig etwas über die gestrichelt angedeutenten Stirnkanten 14' des Stützgerüsts 14 hinaus, so daß Dichtlippen 30 gewonnen und damit die Nahtstellen zuverläßig überbrückt sind.As shown in FIG. 3, the two shell halves 11 'and 11' 'forming the handle 11 each have three openings 24, 25 and 26, each of which is undercut, so that the detents 15', 16 'and 17' of the scaffolding 14 when the shell part 28 illustrated in FIG. 2 and the contour part 27 made of a soft plastic is placed on the handle, engages behind the undercuts 29 (see FIG. 5). This ensures a perfect fit of the shell part 28 on the back of the handle 11. The contoured part 27 made of soft plastic, expediently combined with the support structure 14 by spraying, protrudes somewhat from the handle side beyond the end edges 14 'of the support structure 14, which are indicated by dashed lines, so that sealing lips 30 are obtained and the seams are thus reliably bridged.

Als zweckmäßig hat sich erwiesen, an der Innenseite des Konturenteils 27 aus Weichkunststoff noppenförmige Erhebungen 31 anzubringen, die einen Zusatz-Dämpfungseffekt mit sich bringen.It has proven to be expedient to attach knob-shaped elevations 31 on the inside of the contour part 27 made of soft plastic, which have an additional damping effect.

Durch die erfindungsgemäße Ausgestaltung des Schalenteils 28 aus unterschiedlich harten Kunststoffen wird erreicht, daß sich die Federzahl des im Raum zwischen dem Stützgerüst 14 befindlichen Teils des Weichkunststoffs vergleichsweise besser variieren läßt und die Dämpfungseigenschaft des Schalenteils 28 optimierbar ist.The inventive design of the shell part 28 made of different hard plastics ensures that the number of springs of the part of the soft plastic located in the space between the supporting structure 14 can be varied better and the damping property of the shell part 28 can be optimized.

Claims (4)

Handgeführte Elektrowerkzeugmaschine mit im rückwärtigen Bereich des Handgriffs vorgesehener Ausnehmung für den konturengerechten Einpaß eines Schalenteils aus elastisch nachgiebigem Material sowie mit am Handgriff und am Schalenteil vorgesehenen Mitteln zur Halterung des Schalenteils, dadurch gekennzeichnet, daß das Schalenteil (28) aus einem Stützgerüst (14) aus Hartkunststoff und einem mit diesem vereinigten Konturenteil (27) aus Weichkunststoff gebildet ist und das Stützgerüst (14) mit Rastnasen (15', 16', 17') versehene Ansätze (15,16,17) sowie Zentriernocken (18,19,20) für die lösbare Verbindung mit dem korrespondierende Hinterschneidungen (29) und Zentrierausnehmungen (22,23) aufweisenden Handgriffteil (11) enthält.Hand-held power tool with a recess provided in the rear area of the handle for the contour-conforming fitting of a shell part made of resilient material and with means provided on the handle and on the shell part for holding the shell part, characterized in that the shell part (28) consists of a supporting frame (14) Hard plastic and a contoured part (27) made of soft plastic and the support frame (14) with locking lugs (15 ', 16', 17 ') provided with projections (15, 16, 17) and centering cams (18, 19, 20) contains for the detachable connection with the corresponding undercuts (29) and centering recesses (22, 23) handle part (11). Elektrowerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das Konturenteil (27) auf das Stützgerüst (14) aufgespritzt ist.Power tool according to claim 1, characterized in that the contour part (27) is sprayed onto the supporting frame (14). Elektrowerkzeugmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Konturenteil (26) an seiner dem Handgriff zugewandten Innenseite mit noppenförmigen Erhebungen (31) versehen ist.Power tool according to Claim 1 or 2, characterized in that the contour part (26) is provided with knob-shaped elevations (31) on its inside facing the handle. Elektrowerkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Konturenteil (27) aus Weichkunststoff handgriffseitig lippenförmig über die Stirnkanten (14') des Stützrahmens (14) übersteht.Power tool according to one of the preceding claims, characterized in that the contour part (27) made of soft plastic projects on the handle side on the lip in the form of a lip over the end edges (14 ') of the support frame (14).
EP92102791A 1991-03-04 1992-02-20 Hand-held electrical tool with housing piece made of elastically deformable material Expired - Lifetime EP0502363B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4106768 1991-03-04
DE4106768A DE4106768A1 (en) 1991-03-04 1991-03-04 HAND-HELD ELECTRIC MACHINE TOOL WITH A SHELL PART MADE OF ELASTIC YELLOW MATERIAL ON THE HANDLE

Publications (2)

Publication Number Publication Date
EP0502363A1 true EP0502363A1 (en) 1992-09-09
EP0502363B1 EP0502363B1 (en) 1994-08-10

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ID=6426379

Family Applications (1)

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EP92102791A Expired - Lifetime EP0502363B1 (en) 1991-03-04 1992-02-20 Hand-held electrical tool with housing piece made of elastically deformable material

Country Status (2)

Country Link
EP (1) EP0502363B1 (en)
DE (2) DE4106768A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011091A1 (en) * 1994-10-10 1996-04-18 Atlas Copco Tools Ab Handle for a pneumatic power tool
DE19538252A1 (en) * 1994-10-13 1996-04-18 Ryobi Ltd Structure of handle for motor-driven tool with electric cable entry
EP1236545A2 (en) * 2001-03-02 2002-09-04 Black & Decker Inc. Power tool body
EP1669167A1 (en) * 2004-12-10 2006-06-14 Berner GmbH Tool handle
GB2428992A (en) * 2005-08-08 2007-02-14 Bosch Gmbh Robert Electric hand tool with pot housing part and shell housing part
WO2010136262A1 (en) * 2009-05-27 2010-12-02 Robert Bosch Gmbh Power tool, particularly a hand power tool, the housing parts thereof being connected by means of form-fitting elements
CN104010772A (en) * 2011-12-23 2014-08-27 罗伯特·博世有限公司 Machine tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10228452A1 (en) * 2002-06-26 2004-01-22 Robert Bosch Gmbh Handle of a machine tool
DE102004057613A1 (en) * 2004-11-29 2006-06-08 Hilti Ag Handle arrangement of a circular saw

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153735A (en) * 1984-02-11 1985-08-29 Bosch Gmbh Robert Handle for drilling machines and/or hammer drills
DE8800465U1 (en) * 1988-01-16 1988-03-24 Kress-Elektrik Gmbh & Co, Elektromotorenfabrik, 7457 Bisingen, De
US4833812A (en) * 1988-05-16 1989-05-30 Farrar Frank W Yieldably reinforced gun grip
US4837892A (en) * 1988-03-04 1989-06-13 Conair Corporation Cushioned handle structure for personal care appliances
EP0387410A1 (en) * 1989-03-13 1990-09-19 Snap-On Tools Corporation Cover for pneumatic tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153735A (en) * 1984-02-11 1985-08-29 Bosch Gmbh Robert Handle for drilling machines and/or hammer drills
DE8800465U1 (en) * 1988-01-16 1988-03-24 Kress-Elektrik Gmbh & Co, Elektromotorenfabrik, 7457 Bisingen, De
US4837892A (en) * 1988-03-04 1989-06-13 Conair Corporation Cushioned handle structure for personal care appliances
US4833812A (en) * 1988-05-16 1989-05-30 Farrar Frank W Yieldably reinforced gun grip
EP0387410A1 (en) * 1989-03-13 1990-09-19 Snap-On Tools Corporation Cover for pneumatic tool

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011091A1 (en) * 1994-10-10 1996-04-18 Atlas Copco Tools Ab Handle for a pneumatic power tool
US5954142A (en) * 1994-10-10 1999-09-21 Atlas Copco Tools Ab Handle for a pneumatic power tool
DE19538252A1 (en) * 1994-10-13 1996-04-18 Ryobi Ltd Structure of handle for motor-driven tool with electric cable entry
FR2729502A1 (en) * 1994-10-13 1996-07-19 Ryobi Ltd HANDLE STRUCTURE FOR POWER TOOL
DE19538252C2 (en) * 1994-10-13 1998-01-15 Ryobi Ltd Structure of a handle for power tools
EP1236545A2 (en) * 2001-03-02 2002-09-04 Black & Decker Inc. Power tool body
EP1236545A3 (en) * 2001-03-02 2005-06-15 Black & Decker Inc. Power tool body
EP1669167A1 (en) * 2004-12-10 2006-06-14 Berner GmbH Tool handle
GB2428992A (en) * 2005-08-08 2007-02-14 Bosch Gmbh Robert Electric hand tool with pot housing part and shell housing part
GB2428992B (en) * 2005-08-08 2007-11-21 Bosch Gmbh Robert Electric Hand Tool
WO2010136262A1 (en) * 2009-05-27 2010-12-02 Robert Bosch Gmbh Power tool, particularly a hand power tool, the housing parts thereof being connected by means of form-fitting elements
US20120186844A1 (en) * 2009-05-27 2012-07-26 Robert Bosch Gmbh Power Tool, Particularly a Hand Power Tool, the Housing Parts Thereof Being Connected By Means of Form-Fitting Elements
US9044849B2 (en) 2009-05-27 2015-06-02 Robert Bosch Gmbh Power tool, particularly a hand power tool, the housing parts thereof being connected by means of form-fitting elements
CN104669220A (en) * 2009-05-27 2015-06-03 罗伯特·博世有限公司 Power tool, particularly a hand power tool, the housing parts thereof being connected by means of form-fitting elements
CN104669220B (en) * 2009-05-27 2017-01-18 罗伯特·博世有限公司 Power tool, particularly a hand power tool, the housing parts thereof being connected by means of form-fitting elements
EP3248732A1 (en) * 2009-05-27 2017-11-29 Robert Bosch GmbH Power tool, in particular hand-held power tool, the housing parts thereof being connected by means of form-fitting elements
CN104010772A (en) * 2011-12-23 2014-08-27 罗伯特·博世有限公司 Machine tool
CN104010772B (en) * 2011-12-23 2016-09-21 罗伯特·博世有限公司 Toolroom machine
US9744661B2 (en) 2011-12-23 2017-08-29 Robert Bosch Gmbh Machine tool

Also Published As

Publication number Publication date
DE59200352D1 (en) 1994-09-15
EP0502363B1 (en) 1994-08-10
DE4106768A1 (en) 1992-09-10

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