EP1175286B1 - Hand machine tool - Google Patents

Hand machine tool Download PDF

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Publication number
EP1175286B1
EP1175286B1 EP00988656A EP00988656A EP1175286B1 EP 1175286 B1 EP1175286 B1 EP 1175286B1 EP 00988656 A EP00988656 A EP 00988656A EP 00988656 A EP00988656 A EP 00988656A EP 1175286 B1 EP1175286 B1 EP 1175286B1
Authority
EP
European Patent Office
Prior art keywords
housing
power tool
portable power
service lid
tool according
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.)
Expired - Lifetime
Application number
EP00988656A
Other languages
German (de)
French (fr)
Other versions
EP1175286A1 (en
Inventor
Axel Kuhnle
Helmut Wanek
Markus Heckmann
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.)
Robert Bosch GmbH
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 EP1175286A1 publication Critical patent/EP1175286A1/en
Application granted granted Critical
Publication of EP1175286B1 publication Critical patent/EP1175286B1/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
    • B25F5/02—Construction of casings, bodies or handles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/595—Bolts operating in a direction transverse to the cable or wire

Definitions

  • the invention is based on a hand tool according to the preamble of claim 1 (see, for example US-A-5,466,183 ).
  • the hand tool according to claim 1 has the advantage that a housing shell has an inspection cover, which is easy to open and with which - without having to open the housing completely - the power line or the cable grommet is easily and quickly replaceable.
  • Figure 1 is a perspective view of a hammer drill according to the invention with depth stop
  • Figure 2 is an exploded view of the housing of the hammer drill
  • Figure 3 is a partial bottom view of the hammer drill with open inspection cover
  • FIG. 4 shows the view according to FIG. 3 with the inspection cover closed.
  • FIG. 1 shows a three-dimensional view of a hand-held power tool 10 designed as a hammer drill in the front left view.
  • the hand tool has a housing 12, which consists of a left and right longitudinally split housing shell 121, 122 with a designed as a spade handle handle 14, which includes a switch button 16 from the down an e-cable 18 for the power supply of the not shown, inside a to Housing 12 belonging engine housing 20 arranged engine exits.
  • the motor housing 20 is integrally divided with the housing shells 121, 122 in the motor housing shells 201, 202, which are arranged at right angles to a longitudinal axis 27 of the power tool 10 angled.
  • the longitudinal axis 27 is defined by a machine neck 22, a chuck 24 and an insert tool 26 designed as a drill.
  • an additional handle 28 steps away from the longitudinal axis 27, which is detachably supported on the machine neck 22 by means of a clamping band 30.
  • the auxiliary handle 28 includes an upper extension 29 with a concave, which is intended to bear against the machine neck 22 and the auxiliary handle 29 gives a secure grip on the housing 12.
  • a depth stop 32 embodied as a hexagonal rod is mounted longitudinally displaceably in a rotationally secured manner in a longitudinal guide 38 designed as a hexagonal bore.
  • the depth stop 32 has on opposite hexagonal surfaces an upper and a lower tooth profile 34, 35 with which it is releasably retained in the longitudinal guide 38 in a form-fitting manner.
  • FIG. 2 shows an exploded view of the housing of the power tool 10. It is clear that the housing 12 consists of two longitudinally split housing shells 121, 122. These are held together by means of a snap ring 123 in the front region of the machine neck. At the bottom of the motor housing 20 sits a hinged lid 60 which closes this frontally. This hinged lid 60 is articulated in the left housing shell 121 in the screw 64 and covers the lower half of the motor housing 20 in the carbon brushes. About a locking screw 66 of the hinged lid 60 is attached to the motor housing 20 for proper use. The locking screw 66 is captively connected to the hinged lid 1.
  • the connection between the motor housing 20 and hinged lid 60 is released.
  • the hinged lid can be folded away without having to be completely removed from the device.
  • the locking screw 66 can be released with a screwdriver or with a key or a coin.
  • the folding away of the hinged lid 60 allows easy and comfortable brush replacement.
  • the motor housing 20 engages around a separate envelope housing (FIG. 6), which is inserted between the housing shells 121, 122 during assembly.
  • This envelope housing 62 carries at the lower end a radially outwardly facing threaded bore 68 for engagement of the locking screw 66 and also the Kohlbürsten for the engine.
  • the right housing shell 122 is designed in two parts. It carries a small cover for inspection of the power line 18.
  • the lid is attached to the housing 12 with two screws. After removing the lid, the power cord 18 and the cable grommet 19 can be easily replaced or replaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Drilling And Boring (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Power Tools In General (AREA)

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Handwerkzeugmaschine nach dem Oberbegriff des Anspruchs 1 (siehe z.B. US-A-5 466 183 ).The invention is based on a hand tool according to the preamble of claim 1 (see, for example US-A-5,466,183 ).

Es sind Handwerkzeugmaschinen, insbesondere Handbohrmaschinen und Bohrhämmer mit Gehäusen in Topfbauweise mit einem am Ende des zylindrischen Gehäuses angeordneten Verschlußdeckel bekannt. Dieser Deckel ist jedoch nur umständlich unter Zuhilfenahme von gesonderten Werkzeugen zu öffnen, wobei er nicht oder nur sehr bedingt als Servicedeckel zum Wechseln der Kohlbürsten geeignet ist. Außerdem ist der bekannte Dekkel nicht gegen Verlieren am Gehäuse sicherbar und es ist auch kein Inspektionsdeckel zum Pflegen und Warten der Netzleitung vorgesehen.There are hand tool machines, in particular hand drills and rotary hammers with casings in Topfbauweise with a arranged at the end of the cylindrical housing cap known. However, this cover is only awkward to open with the help of separate tools, and it is not or only very suitable as a service cover for changing the cabbage brushes. In addition, the known lid is not against loss on the housing securable and there is also no inspection cover for maintaining and maintaining the power line provided.

Vorteile der ErfindungAdvantages of the invention

Die Handwerkzeugmaschine nach dem Anspruch 1 hat den Vorteil, daß eine Gehäuseschale einen Inspektiondeckel aufweist, der leicht zu öffnen ist und mit dem - ohne das Gehäuse vollständig öffnen zu müssen - die Netzleitung bzw. die Kabeltülle bequem und schnell auswechselbar ist.The hand tool according to claim 1 has the advantage that a housing shell has an inspection cover, which is easy to open and with which - without having to open the housing completely - the power line or the cable grommet is easily and quickly replaceable.

Zeichnungdrawing

Nachstehend ist die Erfindung anhand eines Ausführungsbeispiels mit zugehöriger Zeichnung näher erläutertThe invention is explained in more detail with reference to an embodiment with associated drawing

Es zeigen
Figur 1 eine räumliche Darstellung eines erfindungsgemäßen Bohrhammers mit Tiefenanschlag
Figur 2 eine Explosionszeichnung des Gehäuses des Bohrhammers
Figur 3 eine ausschnittsweise Unteransicht des Bohrhammers mit geöffnetem Inspektionsdeckel
und Figur 4 die Ansicht gemäß Figur 3 bei geschlossenem Inspektionsdeckel.Show it
Figure 1 is a perspective view of a hammer drill according to the invention with depth stop
Figure 2 is an exploded view of the housing of the hammer drill
Figure 3 is a partial bottom view of the hammer drill with open inspection cover
and FIG. 4 shows the view according to FIG. 3 with the inspection cover closed.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Figur 1 zeigt eine räumliche Darstellung einer als Bohrhammer ausgestalteten Handwerkzeugmaschine 10 in der Ansicht von links vorn. Die Handwerkzeugmaschine hat ein Gehäuse 12, das aus einer linken und rechten längsgeteilten Gehäuseschale 121, 122 mit einem als Spatengriff ausgestalteten Handgriff 14, der eine Schalttaste 16 enthält, aus der nach unten ein E-Kabel 18 zur Energieversorung des nichtdargestellten, im Inneren eines zum Gehäuse 12 gehörenden Motor-Gehäuse 20 angeordneten Motors austritt. Das Motor-Gehäuse 20 ist einstückig mit den Gehäuseschalen 121, 122 in Motorgehäuseschalen 201, 202 geteilt, die gegenüber einer Längsachse 27 der Handwerkzeugmaschine 10 rechtwinklig abgewinkelt angeordnet sind. Die Längsachse 27 ist durch einen Maschinenhals 22, ein Spannfutter 24 und ein als Bohrer ausgestaltetes Einsatzwerkzeug 26 definiert.FIG. 1 shows a three-dimensional view of a hand-held power tool 10 designed as a hammer drill in the front left view. The hand tool has a housing 12, which consists of a left and right longitudinally split housing shell 121, 122 with a designed as a spade handle handle 14, which includes a switch button 16 from the down an e-cable 18 for the power supply of the not shown, inside a to Housing 12 belonging engine housing 20 arranged engine exits. The motor housing 20 is integrally divided with the housing shells 121, 122 in the motor housing shells 201, 202, which are arranged at right angles to a longitudinal axis 27 of the power tool 10 angled. The longitudinal axis 27 is defined by a machine neck 22, a chuck 24 and an insert tool 26 designed as a drill.

Ebenfalls rechtwinklig nach unten tritt ein Zusatzhandgriff 28 von der Längsachse 27 weg, der am Maschinenhals 22 mittels eines Spannbandes 30 abnehmbar gehaltert ist.Also at right angles down an additional handle 28 steps away from the longitudinal axis 27, which is detachably supported on the machine neck 22 by means of a clamping band 30.

Der Zusatzhandgriff 28 enthält einen oberen Fortsatz 29 mit einer konkaven, der zur Anlage an den Maschinenhals 22 bestimmt ist und dem Zusatzhandgriff 29 einen sicheren Halt am Gehäuse 12 gibt.The auxiliary handle 28 includes an upper extension 29 with a concave, which is intended to bear against the machine neck 22 and the auxiliary handle 29 gives a secure grip on the housing 12.

Beiderseits der konkaven, radialen Abstützfläche 40 bildet der obere Fortsatz 29 - in Betrachtungsrichtung von vorn - zwei Schenkel, von denen nur der größere Tragschenkel 31 näher bezeichnet ist. Darin ist ein als Sechskantstab ausgestalteter Tiefenanschlag 32 drehgesichert längsverschiebbar in einer als Sechskantbohrung ausgestalteten Längsführung 38 gelagert. Der Tiefenanschlag 32 hat an gegenüberliegenden Sechkantflächen ein oberes und ein unteres Zahnprofil 34, 35 mit dem er sich formschlüssig in der Längsführung 38 lösbar festhält.On both sides of the concave, radial support surface 40 of the upper extension 29 - in the direction of view from the front - two legs, of which only the larger support leg 31 is designated in more detail. Therein, a depth stop 32 embodied as a hexagonal rod is mounted longitudinally displaceably in a rotationally secured manner in a longitudinal guide 38 designed as a hexagonal bore. The depth stop 32 has on opposite hexagonal surfaces an upper and a lower tooth profile 34, 35 with which it is releasably retained in the longitudinal guide 38 in a form-fitting manner.

Figur 2 zeigt eine Explosionszeichnung des Gehäuses der Handwerkzeugmaschine 10. Dabei wird deutlich, daß das Gehäuse 12 aus zwei längsgeteilten Gehäuseschalen 121, 122 besteht. Diese werden mittels eines Sprengringes 123 im Frontbereich des Maschinenhalses zusammengehalten.
Am unteren Bereich des Motorgehäuses 20 sitzt ein Klappdeckel 60, der dieses stirnseitig verschließt. Dieser Klappdeckel 60 ist in der linken Gehäuseschale 121 in dem Schraubdom 64 gelenkig gelagert und deckt die untere Hälfte des Motorgehäuses 20 im Bereich der Kohlebürsten ab. Über eine Sicherungsschraube 66 wird der Klappdeckel 60 am Motorgehäuse 20 zur betriebsgemäßen Benutzung befestigt. Die Sicherungsschraube 66 ist unverlierbar mit dem Klappdeckel 1 verbunden.Figure 2 shows an exploded view of the housing of the power tool 10. It is clear that the housing 12 consists of two longitudinally split housing shells 121, 122. These are held together by means of a snap ring 123 in the front region of the machine neck.
At the bottom of the motor housing 20 sits a hinged lid 60 which closes this frontally. This hinged lid 60 is articulated in the left housing shell 121 in the screw 64 and covers the lower half of the motor housing 20 in the carbon brushes. About a locking screw 66 of the hinged lid 60 is attached to the motor housing 20 for proper use. The locking screw 66 is captively connected to the hinged lid 1.

Durch das Aufschrauben der Sicherungsschraube 66 wird die Verbindung zwischen Motorgehäuse 20 und Klappdeckel 60 gelöst. Der Klappdeckel kann weggeklappt werden ohne komplett vom Gerät entfernt zu werden müssen.By screwing the locking screw 66, the connection between the motor housing 20 and hinged lid 60 is released. The hinged lid can be folded away without having to be completely removed from the device.

Die Sicherungsschraube 66 kann mit einem Schraubendreher oder aber mit einem Schlüssel oder einer Münze gelöst werden. Das Wegklappen des Klappdeckels 60 ermöglicht einen einfachen und bequemen Kohlebürstenwechsel. Das Motorgehäuse 20 umgreift ein gesondertes Hüllgehäuse (Fig. 6), das bei der Montage zwischen die Gehäuseschalen 121, 122 eingelegt wird. Dieses Hüllgehäuses 62 trägt am unteren Ende eine radial nach außen weisende Gewindebohrung 68 zum Eingriff der Sicherungsschraube 66 und außerdem die Kohlbürsten für den Motor.The locking screw 66 can be released with a screwdriver or with a key or a coin. The folding away of the hinged lid 60 allows easy and comfortable brush replacement. The motor housing 20 engages around a separate envelope housing (FIG. 6), which is inserted between the housing shells 121, 122 during assembly. This envelope housing 62 carries at the lower end a radially outwardly facing threaded bore 68 for engagement of the locking screw 66 and also the Kohlbürsten for the engine.

Die rechte Gehäuseschale 122 ist zweiteilig gestaltet. Sie trägt einen kleinen Deckel zur Inspektion der Netzleitung 18. Der Deckel ist mit zwei Schrauben am Gehäuse 12 befestigt. Nach dem Entfernen des Deckels kann das Netzkabel 18 bzw. die Kabeltülle 19 einfach ausgetauscht bzw. ersetzt werden.The right housing shell 122 is designed in two parts. It carries a small cover for inspection of the power line 18. The lid is attached to the housing 12 with two screws. After removing the lid, the power cord 18 and the cable grommet 19 can be easily replaced or replaced.

Claims (7)

  1. Portable power tool (10) comprising a housing (12, 121, 122) produced in a shell type of construction and having an outlet opening of a mains cable (18) of defined diameter, characterized in that the housing (12) has a separate service lid (70) on one of the housing shells (121, 122) in the region of the outlet opening of the mains cable (18), said service lid (70) being smaller than the housing shell (121, 122) and being dimensioned in such a way that, after it has been opened, the mains cable (18) - without having to completely open the housing (12), in particular without having to remove one of the housing shells (121, 122) - can be removed or exchanged easily and quickly.
  2. Portable power tool according to Claim 1, characterized in that one housing shell (122) has a window-like aperture, which can be overlapped by and closed by the service lid (70) and through which, when the service lid (70) is open, the mains cable (18), in particular in the region of its cable clamp (76), is accessible.
  3. Portable power tool according to Claim 1 or 2, characterized in that the service lid (70) can be fastened by two screws (72) to the housing (12), in particular to the opposite housing shell (121).
  4. Portable power tool according to Claim 3, characterized in that the service lid (70) has two through-holes (71) for one screw (72) each.
  5. Portable power tool according to Claim 4, characterized in that the mains cable (18) can be fastened, in particular with the cable clamp (76), to the housing shell (121), opposite the housing shell (122), in the region of the opposite aperture.
  6. Portable power tool according to one of Claims 2 to 5, characterized in that two screw bosses (74) for screwing in the screws (72) for holding the service lid (70) are provided on the housing shell (121), opposite the housing shell (122), in the region of the opposite aperture, and the mains cable (18) runs between said screw bosses (74).
  7. Portable power tool according to one of Claims 1 to 6, characterized in that the service lid (70) overlaps the mains cable (18) with a central region and equally forms, together with the opposite housing shell (121), a tubular orifice for the outlet of the mains cable (18).
EP00988656A 2000-02-10 2000-11-25 Hand machine tool Expired - Lifetime EP1175286B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10005989 2000-02-10
DE2000105989 DE10005989A1 (en) 2000-02-10 2000-02-10 Hand tool
PCT/DE2000/004191 WO2001058647A1 (en) 2000-02-10 2000-11-25 Hand machine tool

Publications (2)

Publication Number Publication Date
EP1175286A1 EP1175286A1 (en) 2002-01-30
EP1175286B1 true EP1175286B1 (en) 2008-01-30

Family

ID=7630519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00988656A Expired - Lifetime EP1175286B1 (en) 2000-02-10 2000-11-25 Hand machine tool

Country Status (5)

Country Link
EP (1) EP1175286B1 (en)
JP (1) JP2003522040A (en)
CN (1) CN100358677C (en)
DE (2) DE10005989A1 (en)
WO (1) WO2001058647A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4223457A1 (en) * 2022-02-02 2023-08-09 C. & E. Fein GmbH Housing for an electric machine tool

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0428210D0 (en) * 2004-12-23 2005-01-26 Black & Decker Inc Mode change mechanism
DE102005000162A1 (en) * 2005-11-21 2007-05-24 Hilti Ag Mains powered hand tool
EP2581175B1 (en) * 2011-10-11 2015-05-27 Black & Decker Inc. Cord protector for power tools
DE102016201653A1 (en) * 2016-02-03 2017-08-03 Robert Bosch Gmbh Hand tool with a tool change magazine
JP6647138B2 (en) * 2016-05-16 2020-02-14 株式会社マキタ Electric tool
JP6801798B2 (en) * 2017-12-28 2020-12-16 工機ホールディングス株式会社 Strike work machine
DE102019134135A1 (en) 2019-12-12 2021-06-17 Metabowerke Gmbh Device for connecting a power cord

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102838A1 (en) * 1991-01-31 1992-08-06 Bosch Gmbh Robert HAND MACHINE TOOL
DE29904877U1 (en) * 1999-03-17 1999-06-02 Atlas Copco Electric Tools GmbH, 71364 Winnenden Handle with an integrated line finder for a hand-held machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4223457A1 (en) * 2022-02-02 2023-08-09 C. & E. Fein GmbH Housing for an electric machine tool
WO2023148195A1 (en) * 2022-02-02 2023-08-10 C. & E. Fein Gmbh Housing for an electric hand-held power tool

Also Published As

Publication number Publication date
EP1175286A1 (en) 2002-01-30
DE10005989A1 (en) 2001-08-16
WO2001058647A1 (en) 2001-08-16
CN1346305A (en) 2002-04-24
DE50014946D1 (en) 2008-03-20
JP2003522040A (en) 2003-07-22
CN100358677C (en) 2008-01-02

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