EP1633533B1 - Electric hand tool - Google Patents
Electric hand tool Download PDFInfo
- Publication number
- EP1633533B1 EP1633533B1 EP03775100.5A EP03775100A EP1633533B1 EP 1633533 B1 EP1633533 B1 EP 1633533B1 EP 03775100 A EP03775100 A EP 03775100A EP 1633533 B1 EP1633533 B1 EP 1633533B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- bearing shell
- power tool
- bracket
- gear
- 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
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
- B25D2211/06—Means for driving the impulse member
- B25D2211/061—Swash-plate actuated impulse-driving mechanisms
Definitions
- the invention relates to an electric hand tool, in particular a hammer drill or a percussion drill, according to the preamble of claims 1 and 7.
- a known drill or percussion hammer ( DE 28 20 128 A1 ) is a part of a countershaft-forming transmission shaft by means of two ball bearings rotatably received in the housing, which are shrunk with their inner bearing ring in each case on an end portion of the transmission shaft.
- the outer bearing ring of the ball bearing is in each case pressed into a bearing shell.
- One of the bearing shells is formed in the housing and the other of the bearing shells in an intermediate flange held in the housing.
- Each bearing shell has an annular shoulder on which the outer bearing ring is applied during the pressing of the ball bearing in the bearing shell for its positionally correct positioning.
- EP 0 403 789 A1 is a percussion hammer according to the preamble of the independent claims known.
- the electric power tool according to the invention with the features of claim 1 or 7 has the advantage that the transmission shaft with radial bearings is easy to install by the present invention provided sliding seat of the radial bearing in the bearing shell and then axially by means of inventively provided tension bracket tool-free in the housing.
- An axial stop provided on the bearing shell determines the position in the correct position.
- the clamping bracket has two spring-elastic bracket arms, which are axially immovable inserted with their free end portions in two formed on the bearing shell first abutment, and a two arms on the other arm ends integrally connecting cross member formed in one on the bearing shell second abutment is fixed axially immovable.
- the clamping bracket is a cost-effective component and allows a compact design of the drive gear.
- the clamping bracket is resilient and can be pushed transversely to the axis of the transmission shaft on the bearing shell, that the outer bearing ring of the radial bearing overlapped on its one end face and pressed with its other end face ring surface formed on a bearing shell axial stop ,
- the resilient in the axial direction of the transmission shaft clamping bracket is used during assembly as a lever and allows for high axial clamping force low assembly force, since the high clamping force is reached shortly before reaching the end position of the tension bracket.
- the bail arms are formed flat according to an advantageous embodiment of the invention and provided in at least one arm portion with a transversely directed to Bügelarmbene bulge.
- bracket arms are parallel to each other and each have a longitudinally extending guide web.
- the guide webs are insertable in mutually parallel longitudinal grooves which are diametrically opposed to each other on the bearing shell and extending transversely to the bearing axis.
- a housing 10 has an inner housing shell 11 and an outer housing shell 12 and an intermediate flange 13.
- an electric motor with output shaft 14 is accommodated in a known manner, which rotationally drives a rotary sleeve 16 via a drive gear 15 and a striking mechanism 17 in translation.
- the rotary sleeve 16 is coupled to a tool holder in which a tool, such as a percussion drill, is clamped, which is taken in the direction of rotation of the tool holder and in the tool holder is able to perform a limited reciprocating sliding movement.
- the percussion mechanism 17 has a reciprocating drive piston 18, which is axially displaceably guided in the rotary sleeve 16, and a rack, not shown here, which can be acted upon by the drive piston 18 via an air cushion, which delivers its impact energy to the tool held in the tool holder.
- a reciprocating drive piston 18 which is axially displaceably guided in the rotary sleeve 16, and a rack, not shown here, which can be acted upon by the drive piston 18 via an air cushion, which delivers its impact energy to the tool held in the tool holder.
- Both the rotational rotational movement of the rotary sleeve 16 and the translational movement of the drive piston 18 is derived by means of an intermediate shafts 20 of the output shaft 14 of the electric motor.
- a drive pinion 19 is formed on the output shaft 14, which meshes with a pressed onto the intermediate shaft 20 gear, here intermediate gear 22, meshes.
- the output shaft 14 is received with its the drive pinion 19 immediately adjacent shaft portion in a ball bearing 21 which is fixed in the intermediate flange 13.
- the intermediate shaft 20 rotatably carries a countershaft gear 23 which meshes with a countershaft gear, not shown here, which in turn engages in a formed on the rotary sleeve 16 sprocket.
- the striking mechanism 17 is driven by the intermediate shaft 20 via a pendulum gear 24.
- the per se known pendulum gear 24 has in the illustrated embodiment designed as a ball bearing drive bearing 25 which is either rotatably seated on the intermediate shaft 20 or loosely pushed and then connected by means of a coupling with the intermediate shaft 20 for rotation pickup.
- the consisting of an inner bearing body 251 and an outer bearing ring 252 with interposed balls 253 drive bearing 25 is placed with its inner bearing body 252 on the intermediate shaft 20 and formed so that the bearing axis with the axis of the intermediate shaft 20 includes an acute angle.
- the outer bearing ring 252 of the drive bearing 25 carries a radially projecting driving pin 26 which engages with clearance in a transverse bore of a pivot pin 27.
- the pivot pin 27 is held in a fork-like end of the drive piston 18.
- the intermediate shaft 20 is rotatably mounted in the housing 10 by means of two radial bearings.
- This in Fig. 1 left radial bearing 28 is formed as a needle bearing, which is received in a corresponding bearing receptacle 29 of the housing 10.
- the one inner bearing ring 301 and an outer bearing ring 302 with interposed balls 303 bearing radial bearing 30 is pressed with its inner bearing ring 301 on the intermediate shaft 20 and lies with its outer bearing ring 302 with sliding fit in a formed in the intermediate flange 13 integral with this bearing shell 31st and is held in the bearing shell 31 by means of a fixed to the bearing shell 31 and the intermediate flange 13 clamping bracket 32 axially immovable.
- the spring-elastic clamping bracket 32 is - as in Fig.
- clamping bracket 32 engages over the outer bearing ring 302 on the one end face annular surface and formed with the other end face ring surface on a bearing shell 31, as Axial stop acting annular shoulder 311 presses.
- the in Fig. 2 in plan view and in Fig. 3 in a perspective view to see clamping bracket 32 has two elastic strap arms 321, 322, which at one end of the arm by a with they integral piece 323 are connected.
- the bail arms 321, 322 are formed flat and have to increase their clamping force in an arm section each have a transversely directed to Bügelarmbene bulge 324.
- the bail arms 321, 322 are at an acute angle to each other approximately V-shaped, while their free end portions 321 ', 322' are aligned parallel to each other.
- the cross member 323 is angled twice at its transverse edge to the bottom, so that a "U” forms, lying on the bottom U-legs integral with the cross member 323 Schugreifungssteg 323 'forms.
- first counter bearings 33, 34 and a second counter bearing 35 designed as an undercut are formed on the bearing shell 31 or on the intermediate flange 13.
- the free end portions 321 'and 322' in each one of the first abutment 33, 34 is inserted, wherein the first abutment 33, 34 define the clamp arms 321, 322 axially immovable.
- the clamping bracket 32 is then pushed so far until formed on the cross member 323 Schugreifungssteg 323 'is located directly in front of the second abutment 35 on the underside of the bearing shell 31.
- a modified clamping bracket 42 for fixing the radial bearing 30 in the bearing shell 31 of the intermediate flange 13 is shown.
- the here also elastically trained clamping bracket 42 has two resilient strap arms 421, 422, which are integrally connected at one end of the arm with a cross member 423.
- the bail arms 421, 422 are parallel to each other and each carry a formed by U-shaped bending of their longitudinal edges, parallel to the longitudinal axis of the tension bow 42 extending guide web 421 ' or 422 'and an inwardly projecting wide, biased transversely to the clamping bracket level spring arm 421 "or 422".
- the design of the bearing shell 31 in the intermediate flange 13 is modified so that instead of the abutment on the bearing shell 31 two diametrical to the axis of the intermediate shaft 20, mutually parallel longitudinal grooves 43, 44 ( Fig. 5 ) are provided, in which the hanger arms 421, 422 with their guide webs 421 ', 422' are inserted. If the clamping bracket 42 is inserted with its bracket arms 421, 422 in these longitudinal grooves 43, 44, so press the spring arms 421 “and 422" axially on the outer bearing ring 302 of the radial bearing 30 and press the radial bearing 30 as in Fig. 1 to the annular shoulder 311 formed on the bearing shell 31.
- the invention is not limited to the described hammer drill. It can be used in any electric hand tool, in which a gear shaft is rotatably supported by means of a radial bearing, so in drills, sawing machines, electric planer and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Mounting Of Bearings Or Others (AREA)
- Jigs For Machine Tools (AREA)
- Drilling And Boring (AREA)
Description
Die Erfindung betrifft eine Elektrohandwerkzeugmaschine, insbesondere einen Bohrhammer oder eine Schlagbohrmaschine, nach dem Oberbegriff der Ansprüche 1 und 7.The invention relates to an electric hand tool, in particular a hammer drill or a percussion drill, according to the preamble of
Bei einem bekannten Bohr- oder Schlaghammer (
Aus
Die erfindungsgemäße Elektrohandwerkzeugmaschine mit den Merkmalen des Anspruchs 1 oder 7 hat den Vorteil, dass durch den erfindungsgemäß vorgesehenen Schiebesitz des Radiallagers in der Lagerschale die Getriebewelle mit Radiallager einfach zu montieren ist und anschließend mittels des erfindungsgemäß vorgesehenen Spannbügels werkzeuglos im Gehäuse axial fixierbar ist. Ein an der Lagerschale vorgesehener Axialanschlag gibt die lagerichtige Position vor. Gemäß dem Anspruch 1 weist der Spannbügel zwei federelastische Bügelarme, die mit ihren freien Endabschnitten in zwei an der Lagerschale ausgebildete erste Gegenlager axial unverschieblich einschiebbar sind, und ein die beiden Bügelarme an den anderen Armenden einstückig verbindendes Querteil auf, das in einem an der Lagerschale ausgebildeten zweiten Gegenlager axial unverschieblich festlegbar ist. Der Spannbügel ist ein kostengünstiges Bauteil und ermöglicht eine kompakte Bauweise des Antriebsgetriebes.The electric power tool according to the invention with the features of
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der in den Ansprüche 1 und 7 angegebenen Elektrohandwerkzeugmaschine möglich.The measures listed in the further claims advantageous refinements and improvements of the specified in
Gemäß einer bevorzugten Ausführungsform der Erfindung ist der Spannbügel federelastisch ausgebildet und quer zur Achse der Getriebewelle so auf die Lagerschale aufschiebbar, dass der äußere Lagerring des Radiallagers auf seiner einen stirnseitigen Ringfläche übergriffen und mit seiner anderen stirnseitigen Ringfläche an einem an der Lagerschale ausgebildeten Axialanschlag angepresst wird. Der in Achsrichtung der Getriebewelle federnde Spannbügel dient bei der Montage als Hebel und ermöglicht bei hoher axialer Spannkraft eine geringe Montagekraft, da die hohe Spannkraft erst kurz vor Erreichen der Endstellung des Spannbügels erreicht wird.According to a preferred embodiment of the invention, the clamping bracket is resilient and can be pushed transversely to the axis of the transmission shaft on the bearing shell, that the outer bearing ring of the radial bearing overlapped on its one end face and pressed with its other end face ring surface formed on a bearing shell axial stop , The resilient in the axial direction of the transmission shaft clamping bracket is used during assembly as a lever and allows for high axial clamping force low assembly force, since the high clamping force is reached shortly before reaching the end position of the tension bracket.
Zur Erzeugung einer hohen Spannkraft sind gemäß einer vorteilhaften Ausführungsform der Erfindung die Bügelarme flach ausgebildet und in mindestens einem Armabschnitt mit einer quer zur Bügelarmebene gerichtete Auswölbung versehen.To produce a high clamping force, the bail arms are formed flat according to an advantageous embodiment of the invention and provided in at least one arm portion with a transversely directed to Bügelarmbene bulge.
Gemäß dem Anspruch 7 verlaufen die Bügelarme parallel zueinander und weisen jeweils einen in Längsrichtung sich erstreckenden Führungssteg auf. Die Führungsstege sind in parallel zueinander verlaufenden Längsnuten einschiebbar, die einander an der Lagerschale diametral gegenüberliegen und sich quer zur Lagerachse erstrecken.According to claim 7, the bracket arms are parallel to each other and each have a longitudinally extending guide web. The guide webs are insertable in mutually parallel longitudinal grooves which are diametrically opposed to each other on the bearing shell and extending transversely to the bearing axis.
Die Erfindung ist anhand von in der Zeichnung dargestellten Ausführungsbeispielen in der nachfolgenden Beschreibung näher erläutert. Es zeigen:
- Fig. 1
- ausschnittweise einen Längsschnitt eines Bohrhammers,
- Fig. 2
- einen Schnitt längs der Linie II - II in
Fig. 1 , - Fig. 3
- ausschnittweise eine perspektivische Draufsicht auf Spannbügel und Zwischenflansch des Bohrhammers in
Fig. 1 , - Fig. 4
- ausschnittweise eine Draufsicht eines modifizierten Zwischenflansches des Bohrhammers gemäß
Fig. 1 mit aufgeschobenem modifizierten Spannbügel, - Fig. 5
- einen Schnitt längs der Linie V - V in
Fig. 4 .
- Fig. 1
- partially a longitudinal section of a hammer drill,
- Fig. 2
- a section along the line II - II in
Fig. 1 . - Fig. 3
- a perspective top view of clamping bracket and intermediate flange of the hammer drill in
Fig. 1 . - Fig. 4
- a detail of a plan view of a modified intermediate flange of the hammer drill according to
Fig. 1 with deferred modified clamping bracket, - Fig. 5
- a section along the line V - V in
Fig. 4 ,
Der in
Sowohl die rotatorische Drehbewegung der Drehhülse 16 als auch die translatorische Bewegung des Antriebskolbens 18 wird mittels einer Zwischenwellen 20 von der Abtriebswelle 14 des Elektromotors abgeleitet. Hierzu ist auf der Abtriebswelle 14 ein Antriebsritzel 19 ausgebildet, das mit einem auf die Zwischenwelle 20 aufgepressten Getriebezahnrad, hier Zwischenzahnrad 22 genannt, kämmt. Die Abtriebswelle 14 ist mit ihrem dem Antriebsritzel 19 unmittelbar benachbarten Wellenabschnitt in einem Kugellager 21 aufgenommen, das im Zwischenflansch 13 festgelegt ist. Die Zwischenwelle 20 trägt drehfest ein Vorgelegeritzel 23, das mit einem hier nicht dargestellten Vorgelegezahnrad kämmt, das wiederum in einen an der Drehhülse 16 ausgebildeten Zahnkranz eingreift.Both the rotational rotational movement of the
Das Schlagwerk 17 wird von der Zwischenwelle 20 über ein Pendelgetriebe 24 angetrieben. Das an sich bekannte Pendelgetriebe 24 weist in dem dargestellten Ausführungsbeispiels ein als Kugellager ausgebildetes Antriebslager 25 auf, das auf der Zwischenwelle 20 entweder drehfest sitzt oder lose aufgeschoben ist und dann mittels einer Kupplung mit der Zwischenwelle 20 zur Drehübernahme verbindbar ist. Das aus einem inneren Lagerkörper 251 und einem äußeren Lagerring 252 mit dazwischen angeordneten Kugeln 253 bestehende Antriebslager 25 ist mit seinem inneren Lagerkörper 252 auf die Zwischenwelle 20 aufgesetzt und so ausgebildet, dass die Lagerachse mit der Achse der Zwischenwelle 20 einen spitzen Winkel einschließt. Der äußere Lagerring 252 des Antriebslagers 25 trägt einen radial abstehenden Mitnehmerbolzen 26, der mit Spiel in eine Querbohrung eines Drehbolzens 27 eingreift. Der Drehbolzen 27 ist in einem gabelartig ausgebildeten Ende des Antriebskolbens 18 gehalten. Die Zwischenwelle 20 ist im Gehäuse 10 mittels zweier Radiallager drehbar gelagert. Das in
Zum Festspannen des Spannbügels 32 an der Lagerschale 31 bzw. am Zwischenflansch 13 sind an der Lagerschale 31 bzw. am Zwischenflansch 13 zwei schlitzartige erste Gegenlager 33, 34 und ein als Hinterschnitt ausgeführtes zweites Gegenlager 35 ausgebildet. Beim Aufschieben des Spannbügels 32 auf den Zwischenflansch 13 werden die freien Endabschnitte 321' und 322' in je eines der ersten Gegenlager 33, 34 eingeschoben, wobei die ersten Gegenlager 33, 34 die Bügelarme 321, 322 axial unverschieblich festlegen. Der Spannbügel 32 wird dann soweit aufgeschoben, bis der am Querteil 323 ausgebildete Hintergreifungssteg 323' unmittelbar vor dem zweiten Gegenlager 35 an der Unterseite der Lagerschale 31 liegt. Dann wird der Spannbügel 32 gegen die Federkraft der Auswölbungen 324 auf die Lagerschale 31 aufgepresst und weiter verschoben, bis der Hintergreifungssteg 323' den Hinterschnitt des zweiten Gegenlagers 35 hintergreift (
In
Die Ausbildung der Lagerschale 31 im Zwischenflansch 13 ist so modifiziert, dass anstelle der Gegenlager an der Lagerschale 31 zwei zur Achse der Zwischenwelle 20 diametrale, parallel zueinander verlaufende Längsnuten 43, 44 (
Die Erfindung ist nicht auf den beschriebenen Bohrhammer beschränkt. Sie kann in jeder Elektrohandwerkzeugmaschine eingesetzt werden, in der eine Getriebewelle mittels eines Radiallagers drehbar gelagert wird, so in Bohrmaschinen, Sägemaschinen, Elektrohobel und dgl..The invention is not limited to the described hammer drill. It can be used in any electric hand tool, in which a gear shaft is rotatably supported by means of a radial bearing, so in drills, sawing machines, electric planer and the like.
Claims (11)
- Electric hand-held power tool, in particular hammer drill or impact drill, having a drive gear mechanism (15) which is accommodated in a housing (10) and has a gear-mechanism shaft (20), and having at least one radial bearing (30) which has an inner and outer bearing ring (301, 302) for rotationally mounting the gear-mechanism shaft (20), the inner bearing ring (301) of which radial bearing (30) is fixed on the gear-mechanism shaft (20) and the outer bearing ring (302) of which radial bearing (30) is fixed in a bearing shell (31) which is formed in the housing (10), in each case in an axially non-displaceable manner, the outer bearing ring (302) lying with a sliding seat in the bearing shell (31) and being fixed in the bearing shell (31) by means of a clamping bracket (32; 42) which can be fixed on the bearing shell (31), the clamping bracket (32; 42) having two resilient bracket arms (321, 322) and a transverse part (323) which connects the bracket arms (321, 322) integrally at one arm end, characterized in that two first counterbearings (33, 34) for the axially non-displaceable fixing of the free end sections (321', 322') of the bracket arms (321, 322) and a second counterbearing (35) for the axial non-displaceable fixing of the transverse part (323) are formed on the bearing shell (31).
- Power tool according to Claim 1, characterized in that the clamping bracket (32; 42) is of resilient configuration and can be pushed onto the bearing shell (31) transversely with respect to the axis of the gear-mechanism shaft (20) in such a way that the outer bearing ring (302) of the radial bearing (30) is engaged over on its one end-side ring face and is pressed with its other end-side ring face on an axial stop (311) which is formed on the bearing shell (31).
- Power tool according to Claim 1 or 2, characterized in that the bracket arms (321, 322) are flat and, in at least one arm section, have a protuberance (324) which bulges transversely with respect to the bracket-arm plane.
- Power tool according to Claim 3, characterized in that the flat end sections (321', 322') of the bracket arms (321, 322) can be pushed into in each case one of the first counterbearings (33, 34) which are of slot-like configuration.
- Power tool according to one of Claims 1 to 4, characterized in that the second counterbearing (35) is formed by an undercut in the bearing shell (31), which undercut is engaged behind by a rear-engagement web (323') which runs on the edge side of the transverse part (323), and preferably in that the rear-engagement web (323') is formed by the longitudinal edge of the transverse part (323) being bent away in a U-shape.
- Power tool according to one of Claims 1 to 5, characterized in that the bracket arms (321, 322) run in an approximately V-shaped manner at an acute angle with respect to one another, and in that the free end sections (321', 322') of the bracket arms (321, 322), which free end sections (321', 322') can be pushed into the first counterbearings (33, 34), are oriented parallel to one another.
- Electric hand-held power tool, in particular hammer drill or impact drill, having a drive gear mechanism (15) which is accommodated in a housing (10) and has a gear-mechanism shaft (20), and having at least one radial bearing (30) which has an inner and outer bearing ring (301, 302) for rotationally mounting the gear-mechanism shaft (20), the inner bearing ring (301) of which radial bearing (30) is fixed on the gear-mechanism shaft (20) and the outer bearing ring (302) of which radial bearing (30) is fixed in a bearing shell (31) which is formed in the housing (10), in each case in an axially non-displaceable manner, the outer bearing ring (302) lying with a sliding seat in the bearing shell (31) and being fixed in the bearing shell (31) by means of a clamping bracket (32; 42) which can be fixed on the bearing shell (31), the clamping bracket (42) having two resilient bracket arms (421, 422) and a transverse part (423) which connects the bracket arms (421, 422) integrally at one arm end, characterized in that guide webs (421', 422') which extend in the longitudinal direction are formed on the bracket arms (421, 422), and in that longitudinal grooves (43, 44) which lie diametrically opposite one another, extend transversely with respect to the bearing axis and run parallel to one another are formed on the bearing shell (31), into which longitudinal grooves (43, 44) the guide webs (421', 422') can be pushed.
- Power tool according to Claim 7, characterized in that the guide webs (421', 422') are formed by the bracket arms (421, 422) being bent over in a U-shaped manner at their longitudinal edges.
- Power tool according to Claim 7 or 8, characterized in that the bracket arms (421, 422) have spring arms (421", 422") which project on mutually facing sides and have a spring prestress which acts transversely with respect to the plane of the clamping bracket (42).
- Power tool according to one of Claims 1 to 9, characterized in that the bearing shell (31) is formed integrally in an intermediate flange (13) which is enclosed by the housing (10).
- Power tool according to one of Claims 1 to 10, characterized in that the inner bearing ring (301) of the radial bearing (30) is fixed on the gear-mechanism shaft (20) by means of a press fit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10312981A DE10312981A1 (en) | 2003-03-24 | 2003-03-24 | Electric hand tool |
PCT/DE2003/003626 WO2004085118A1 (en) | 2003-03-24 | 2003-10-31 | Electric hand tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1633533A1 EP1633533A1 (en) | 2006-03-15 |
EP1633533B1 true EP1633533B1 (en) | 2014-03-19 |
Family
ID=32946092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03775100.5A Expired - Lifetime EP1633533B1 (en) | 2003-03-24 | 2003-10-31 | Electric hand tool |
Country Status (5)
Country | Link |
---|---|
US (1) | US7036607B2 (en) |
EP (1) | EP1633533B1 (en) |
CN (1) | CN100352612C (en) |
DE (1) | DE10312981A1 (en) |
WO (1) | WO2004085118A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1728596B1 (en) * | 2005-06-02 | 2009-02-11 | Makita Corporation | Power tool |
DE102005041447A1 (en) * | 2005-08-31 | 2007-03-01 | Robert Bosch Gmbh | Hammer drill, comprises intermediate shaft designed as plain cylindrical element holding driving wheel, driven wheel, and slide bearing |
DE102006029363A1 (en) * | 2006-06-27 | 2008-01-03 | Robert Bosch Gmbh | Electric hand tool |
CN2920563Y (en) * | 2006-07-11 | 2007-07-11 | 王文江 | Light single-span four function electric hammer |
DE102007050549A1 (en) * | 2007-10-23 | 2009-04-30 | Robert Bosch Gmbh | Hand tool |
CN201201225Y (en) * | 2008-05-20 | 2009-03-04 | 东莞群胜粉末冶金有限公司 | Impact switching mechanism of impact drill |
DE102009027560A1 (en) * | 2009-07-09 | 2011-01-13 | Robert Bosch Gmbh | Hammer drill and / or chisel device |
DE102009054927A1 (en) * | 2009-12-18 | 2011-06-22 | Robert Bosch GmbH, 70469 | Hand tool machine, in particular cordless hand tool machine |
CN101758486B (en) * | 2010-01-21 | 2011-09-28 | 浙江海王电器有限公司 | Light single-button multifunctional electric hammer |
US8636081B2 (en) | 2011-12-15 | 2014-01-28 | Milwaukee Electric Tool Corporation | Rotary hammer |
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CH356396A (en) | 1960-07-13 | 1961-08-15 | Duss Friedrich Fa | Device on an electric hand drill to optionally change the latter for rotary drilling and percussion drilling |
DE1628045B2 (en) * | 1967-01-13 | 1974-01-10 | Robert Bosch Gmbh, 7000 Stuttgart | Hammer device with a drive motor installed transversely to the direction of impact |
DE2252951B2 (en) * | 1972-10-28 | 1981-09-10 | Robert Bosch Gmbh, 7000 Stuttgart | Hammer drill |
DE2820128A1 (en) | 1978-05-09 | 1979-11-22 | Bosch Gmbh Robert | CRAFT MACHINE |
DE3504650C2 (en) * | 1985-02-12 | 1994-01-20 | Bosch Gmbh Robert | Hammer drill with increased actuation force for the coupling of the impact drive |
DE3506695A1 (en) * | 1985-02-26 | 1986-08-28 | Robert Bosch Gmbh, 7000 Stuttgart | DRILLING HAMMER |
DE3807078A1 (en) * | 1988-03-04 | 1989-09-14 | Black & Decker Inc | DRILLING HAMMER |
DE3919936A1 (en) | 1989-06-19 | 1990-12-20 | Bosch Gmbh Robert | DRILLING HAMMER |
JP3292969B2 (en) * | 1995-08-18 | 2002-06-17 | 株式会社マキタ | Hammer drill |
DE19540396A1 (en) * | 1995-10-30 | 1997-05-07 | Hilti Ag | Drilling and / or chiseling device |
JP3292972B2 (en) * | 1996-03-29 | 2002-06-17 | 株式会社マキタ | Impact tool |
DE19707588B4 (en) | 1997-02-26 | 2005-08-18 | Robert Bosch Gmbh | Machine tool, in particular drill or impact drill or hammer drill |
DE19717712A1 (en) * | 1997-04-18 | 1998-10-22 | Black & Decker Inc | Hammer drill |
JP2000237976A (en) * | 1999-02-19 | 2000-09-05 | Hitachi Koki Co Ltd | Cordless hammer drill |
TW417558U (en) * | 1999-03-09 | 2001-01-01 | Best Power Tools Co Ltd | Cylinder device of a pneumatic tool |
DE10111748A1 (en) * | 2001-03-12 | 2002-09-19 | Hilti Ag | Switchgear for a combined hand tool |
-
2003
- 2003-03-24 DE DE10312981A patent/DE10312981A1/en not_active Ceased
- 2003-10-31 CN CNB2003801102093A patent/CN100352612C/en not_active Expired - Lifetime
- 2003-10-31 US US10/510,023 patent/US7036607B2/en not_active Expired - Lifetime
- 2003-10-31 EP EP03775100.5A patent/EP1633533B1/en not_active Expired - Lifetime
- 2003-10-31 WO PCT/DE2003/003626 patent/WO2004085118A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN100352612C (en) | 2007-12-05 |
US7036607B2 (en) | 2006-05-02 |
US20050126801A1 (en) | 2005-06-16 |
WO2004085118A1 (en) | 2004-10-07 |
DE10312981A1 (en) | 2004-10-07 |
EP1633533A1 (en) | 2006-03-15 |
CN1758989A (en) | 2006-04-12 |
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