EP1000712B9 - Hammer drilling machine - Google Patents
Hammer drilling machine Download PDFInfo
- Publication number
- EP1000712B9 EP1000712B9 EP99121944A EP99121944A EP1000712B9 EP 1000712 B9 EP1000712 B9 EP 1000712B9 EP 99121944 A EP99121944 A EP 99121944A EP 99121944 A EP99121944 A EP 99121944A EP 1000712 B9 EP1000712 B9 EP 1000712B9
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- drill
- rod
- hammer according
- drill hammer
- 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
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Classifications
-
- 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
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- 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
- 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
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- 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
- B25D2217/0073—Arrangements for damping of the reaction force
- B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
- B25D2217/0088—Arrangements for damping of the reaction force by use of counterweights being mechanically-driven
Definitions
- the invention relates to a hammer drill according to the preamble of claim 1.
- wobble drive device is understood to mean a rotation / translation converter device in which the rotational movement of a drive-side element is converted into a linear translational movement of a driven-side element.
- a rotational element acts on a wobble element, which is referred to below as a swash plate, in such a way that it is driven tilting back and forth and can displace a further element into linear translational motion.
- a hammer drill of the type described above is known from DE 196 51 828 A1 (Bosch ), or from the DE 3427342 A1 , known.
- the object of the present invention is to reduce the vibration turbulence which occurs as a result of the mass accelerations or delays in the known rotary hammer and the associated handling difficulties.
- This weight body forms a kind of counterweight and generates counter-moments to the moving masses and moments occurring as a result of the exciter sleeve movement. It has been found with the invention that a substantial increase in the smoothness is achieved by the linearly movable weight body, to such an extent as can not be achieved by an increase in mass of the swash plate on the corresponding side. This is due to the fact that an optimal balance in this case can not be achieved, since the local mass enrichment on the swash plate would not perform a linear but a swinging with the swash plate movement in contrast to the conditions on the percussion side, where the excitation sleeve also linearly movable is provided.
- the positive guidance of the weight body is advantageously formed by a housing fixed in the operation of the hammer drill.
- the positive guidance is formed by at least one linearly extending rod, which is held on a housing-fixed component and engages in a direction of movement linearly extending guide recess in the weight body.
- This linearly extending guide recess could, for example, be a passage opening in the weight body.
- the guide recess is formed in the weight body as open-edged recess, since in such a case, the positive guidance on the outer sides of the weight body can be realized. This creates space in the interior of the weight body, which is available for the formation of the coupling to the swash plate.
- the positive guide forming rod is advantageously a round rod.
- the length of the rod could be shorter than the longitudinal extent of the weight body and, for example, be arranged only in a central region of the weight body.
- the length of the rod is greater than that of the weight body and that the rod is held at its ends to a housing-fixed component.
- the weight body is formed substantially cuboid. He can be arranged in such a case in a substantially cuboid, preferably provided below the striking mechanism area. Especially in this area is the creation of additional space for the weight body unproblematic and not disturbing.
- the coupling of the weight body to the swash plate can be realized in any desired manner, so that the oscillating movement of the swash plate can be converted into a linear reciprocating motion of the weight body.
- the weight body has an opening for receiving a radial extension of the swash plate.
- the radial extension may be formed integrally with the swash plate, or this may be an attachable in any manner approach.
- a dome-shaped coupling attachment piece may also be provided on the weight body.
- the formation of an opening proves to be easier to manufacture and, above all, space-saving.
- the radial coupling extension on the swash plate is advantageously formed like a ball head and thus includes a slimming down to the swash plate. This facilitates the coupling to the weight body.
- FIG. 1 shows an inventively designed rotary hammer. From an electric motor 2, a drive shaft 4 extends vertically upwards in the figure. Via an angle gear 6, a drive deflection is achieved by 90 °, which leads to a pinion 8.
- the axis of rotation of the pinion 8 is parallel to the Bohrtechnikmaschinegneachse 10 of a usable in the front area in a chuck body 12 in the figure, not shown tool, which may be a drilling tool but also a pure impact tool, such as a chisel.
- the pinion 8 is in meshing engagement with a gear 14 which rotatably disposed on an intermediate shaft 16 is, which in turn extends parallel to the Bohrwerkmaschineachse 10 forward.
- a gear 18 is rotatably provided in a front portion of the intermediate shaft 16 in turn a gear 18 is rotatably provided.
- a rotatably connected to the outer sleeve 20 is provided which can be brought by means of a displaceable in the direction of the tool axis 10 back and forth coupling element 22 by meshing engagement with the gear 18 in drive connection or out of drive connection.
- an exciter sleeve 24 is slidably provided in the direction of the Bohrwerkmaschineachse 10 back and forth.
- the exciter sleeve 24 defines a space 26 which defines an air cushion and in turn accommodates a percussion piston 28 in the longitudinal direction of the Bohrwerkmaschineachse 10 slidably.
- the air cushion is relaxed or compressed in a conventional manner and thereby causes a reciprocating motion of the percussion piston 28.
- the percussion piston 28 exerts with its front end face 30 a striking effect on an intermediate plunger 32, which is transmitted to the drilling tool, not shown.
- the reciprocating motion of the exciter sleeve 24 is effected by a tumble drive device 34, hereinafter is described.
- the wobble drive device 34 comprises a rotation element 36 which is mounted on the intermediate shaft 16 and rotatable relative thereto. By rotating a coupling sleeve 38 which is non-rotatably provided on the intermediate shaft 16, the rotational element 36 can be non-rotatably connected to the intermediate shaft 16 via a dog clutch 40 on its side facing the coupling sleeve 38 (impact operation).
- the rotary member 36 is surrounded by a swash plate member 42, wherein between them rolling elements 44 are provided, such that the rotary member 36, the inner shell and the swash plate 42 is the outer shell of the bearing formed thereby.
- the swash plate 42 comprises at its the exciter sleeve 24 side facing a pin-shaped projection 46, which optionally engages with the interposition of a spherical bearing in an opening 48 of the exciter sleeve.
- the swash plate 42 performs a swinging or tilting movement.
- the pin-shaped projection 46 oscillates in the plane of the drawing FIG. 1 , as indicated by double representation.
- the exciter sleeve 24 follows by corresponding reciprocation. The air cushion in the space 26 is compressed and decompressed, thus the percussion piston 28 is moved back and forth.
- a weight body 50 is provided such that it can be driven by the swash plate 42 in a positive guide linear and parallel to Bohrwerkmaschineachse 10 back and forth.
- the positive guidance is achieved in that on the two longitudinal sides 52, 54 of the rectangular weight body 50 open-edge guide recesses 56, 58 are formed, which have a circular shape and each receive a parallel to the tool axis 10 extending rod 60, 62 as a longitudinal guide means.
- the rods 60, 62 are held with their longitudinal ends 64, 66 on a housing-fixed component 68, 70.
- the weight body 50 comprises an opening 72 designed as a bore, into which a coupling means 74 in the form of a ball-head-shaped extension 76 integrally formed on the swash plate 42 engages, if necessary, with interposition of a spherical bearing.
- the exciter sleeve 24 When in impact operation, the exciter sleeve 24 is moved by the tumbling or reciprocating tilting movement of the swash plate 42 and the neck 46 in the direction of Bohrwerkmaschineachse 10 backwards, so will simultaneously and parallel to Bohrwerkmaschineachse 10 of the weight body 50 moves forward. As a result, the rough running in the impact mode or percussion drilling can be significantly reduced.
- the linearly reciprocating weight body 50 is housed in a cuboid housing portion 78 of the machine housing.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
- Earth Drilling (AREA)
Description
Die Erfindung betrifft einen Bohrhammer gemäß dem Oberbegrift des Anspruchs 1.The invention relates to a hammer drill according to the preamble of claim 1.
Unter der Bezeichnung Taumeltriebvorrichtung wird eine Rotations/Translationswandler-Vorrichtung verstanden, bei der die Rotationsbewegung eines antriebsseitigen Elements in eine lineare Translationsbewegung eines abtriebsseitigen Elements umgesetzt wird. Hierbei wirkt ein Rotationselement derart auf ein im folgenden als Taumelscheibe bezeichnetes Taumelelement ein, dass dieses hin und her kippend angetrieben wird und dabei ein weiteres Element in lineare Translationsbewegung versetzen kann.The term wobble drive device is understood to mean a rotation / translation converter device in which the rotational movement of a drive-side element is converted into a linear translational movement of a driven-side element. In this case, a rotational element acts on a wobble element, which is referred to below as a swash plate, in such a way that it is driven tilting back and forth and can displace a further element into linear translational motion.
Ein Bohrhammer der vorstehend beschriebenen Art ist aus der
Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, die infolge der Massenbeschleunigungen bzw. Verzögerungen auftretende Vibrationsunruhe bei dem bekannten Bohrhammer und die damit verbundenen Handhabungsschwierigkeiten zu reduzieren.Proceeding from this, the object of the present invention is to reduce the vibration turbulence which occurs as a result of the mass accelerations or delays in the known rotary hammer and the associated handling difficulties.
Diese Aufgabe wird bei einem Bohrhammer der genannten Art erfindungsgemäß dadurch gelöst, dass der Gewichtskörper zwangsgeführt linear und parallel zur Bohrwerkzeugachse unter der Wirkung der Taumelscheibe hin- und herverschiebbar vorgesehen ist.This object is achieved according to the invention in a hammer drill of the type mentioned in that the weight body is forcibly guided linearly and parallel to the Bohrwerkzeugachse under the action of the swash plate and herverschiebbar provided.
Dieser Gewichtskörper bildet quasi ein Gegengewicht und erzeugt Gegenmomente zu den infolge der Erregerhülsenbewegung auftretenden bewegten Massen und Momenten. Es wurde mit der Erfindung festgestellt, dass eine wesentliche Erhöhung der Laufruhe durch den linear beweglichen Gewichtskörper erreicht wird, und zwar in einem solchen Maße, wie es durch eine Massenanreicherung der Taumelscheibe auf der entsprechenden Seite nicht erzielt werden kann. Dies liegt darin begründet, dass eine optimale Austarierung in diesem Fall nicht erreicht werden kann, da die lokale Massenanreicherung an der Taumelscheibe keine lineare sondern eine mit der Taumelscheibe pendelnde Bewegung ausführen würde im Unterschied zu den Verhältnissen auf der Schlagwerkseite, wo die Erregerhülse ebenfalls linear bewegbar vorgesehen ist.This weight body forms a kind of counterweight and generates counter-moments to the moving masses and moments occurring as a result of the exciter sleeve movement. It has been found with the invention that a substantial increase in the smoothness is achieved by the linearly movable weight body, to such an extent as can not be achieved by an increase in mass of the swash plate on the corresponding side. This is due to the fact that an optimal balance in this case can not be achieved, since the local mass enrichment on the swash plate would not perform a linear but a swinging with the swash plate movement in contrast to the conditions on the percussion side, where the excitation sleeve also linearly movable is provided.
Die Zwangsführung des Gewichtskörpers ist vorteilhafterweise durch ein im Betrieb gehäusefestes Bauteil des Bohrhammers gebildet. Nach einer bevorzugten Ausführungsform der Erfindung ist die Zwangsführung durch wenigstens einen linear erstreckten Stab gebildet, welcher an einem gehäusefesten Bauteil gehalten ist und in eine in Bewegungsrichtung linear erstreckte Führungsausnehmung in dem Gewichtskörper eingreift. Diese linear erstreckte Führungsausnehmung könnte bspw. eine Durchgangsöffnung in dem Gewichtskörper sein. Demgegenüber erweist es sich jedoch als vorteilhaft, wenn die Führungsausnehmung in dem Gewichtskörper als randoffene Ausnehmung ausgebildet ist, da solchenfalls die Zwangsführung an den Aussenseiten des Gewichtskörpers verwirklicht werden kann. Dies schafft Bauraum im Inneren des Gewichtskörpers, der zur Ausbildung der Kopplung an die Taumelscheibe zur Verfügung steht.The positive guidance of the weight body is advantageously formed by a housing fixed in the operation of the hammer drill. According to a preferred embodiment of the invention, the positive guidance is formed by at least one linearly extending rod, which is held on a housing-fixed component and engages in a direction of movement linearly extending guide recess in the weight body. This linearly extending guide recess could, for example, be a passage opening in the weight body. In contrast, it turns out However, as advantageous if the guide recess is formed in the weight body as open-edged recess, since in such a case, the positive guidance on the outer sides of the weight body can be realized. This creates space in the interior of the weight body, which is available for the formation of the coupling to the swash plate.
In weiterer Ausbildung der Erfindung ist der die Zwangsführung bildende Stab vorteilhafterweise ein Rundstab. Die Länge des Stabs könnte gegenüber der Längserstreckung des Gewichtskörpers kürzer ausgebildet sein und bspw. nur in einem mittleren Bereich des Gewichtskörpers angeordnet sein. Indessen erweist es sich als vorteilhaft, wenn die Länge des Stabs größer ist als die des Gewichtskörpers und dass der Stab an seinen Enden an einem gehäusefesten Bauteil gehalten ist. Hierdurch läßt sich einerseits eine größere Führungslänge und andererseits eine einfachere Montierbarkeit des Gewichtskörpers erreichen.In a further embodiment of the invention, the positive guide forming rod is advantageously a round rod. The length of the rod could be shorter than the longitudinal extent of the weight body and, for example, be arranged only in a central region of the weight body. However, it proves to be advantageous if the length of the rod is greater than that of the weight body and that the rod is held at its ends to a housing-fixed component. As a result, on the one hand, a greater guide length and, on the other hand, a simpler mountability of the weight body can be achieved.
Es erweist sich desweiteren als vorteilhaft, wenn der Gewichtskörper im Wesentlichen quaderförmig ausgebildet ist. Er läßt sich solchenfalls in einem im Wesentlichen quaderförmigen, vorzugsweise unterhalb des Schlagwerks vorgesehenen Bereich anordnen. Gerade in diesem Bereich ist die Schaffung zusätzlichen Bauraums für den Gewichtskörper unproblematisch und nicht störend. Die Ankopplung des Gewichtskörpers an die Taumelscheibe kann in an sich beliebiger Weise verwirklicht sein, so dass die pendelnde Bewegung der Taumelscheibe in eine lineare Hin- und Herbewegung des Gewichtskörpers gewandelt werden kann. Hierfür hat es sich als vorteilhaft erwiesen, wenn der Gewichtskörper eine Öffnung zur Aufnahme eines radialen Fortsatzes der Taumelscheibe aufweist. Der radiale Fortsatz kann dabei einstückig mit der Taumelscheibe ausgebildet sein, oder es kann sich hierbei um einen in an sich beliebiger Weise anbringbaren Ansatz handeln. Selbstverständlich könnte anstelle der Öffnungen im Gewichtskörper auch ein kalottenförmiges Kupplungsansatzstück an dem Gewichtskörper vorgesehen sein. Indessen erweist sich die Ausbildung einer Öffnung als herstellungstechnisch einfacher und vor allem bauraumsparender. Der radiale Kupplungsfortsatz an der Taumelscheibe ist vorteilhafterweise kugelkopfartig ausgebildet und umfasst somit eine Verschlankung zur Taumelscheibe hin. Dies erleichtert die Kupplung zu dem Gewichtskörper.It also proves to be advantageous if the weight body is formed substantially cuboid. He can be arranged in such a case in a substantially cuboid, preferably provided below the striking mechanism area. Especially in this area is the creation of additional space for the weight body unproblematic and not disturbing. The coupling of the weight body to the swash plate can be realized in any desired manner, so that the oscillating movement of the swash plate can be converted into a linear reciprocating motion of the weight body. For this it has proven to be advantageous if the weight body has an opening for receiving a radial extension of the swash plate. The radial extension may be formed integrally with the swash plate, or this may be an attachable in any manner approach. Of course, instead of the openings in the weight body, a dome-shaped coupling attachment piece may also be provided on the weight body. Meanwhile, the formation of an opening proves to be easier to manufacture and, above all, space-saving. The radial coupling extension on the swash plate is advantageously formed like a ball head and thus includes a slimming down to the swash plate. This facilitates the coupling to the weight body.
Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der zeichnerischen Darstellung und nachfolgenden Beschreibung einer bevorzugten Ausführungsform des erfindungsgemäßen Bohrhammers. In der Zeichnung zeigt:
- Figur 1
- eine teilweise geschnittene Seitenansicht eines erfindungsgemäß ausgebildeten Bohrhammers;
Figur 2- eine ausschnittsweise Darstellung des Bereichs "X" aus
Figur 1 ; - Figur 3
- eine Schnittansicht des Bohrhammers nach
Figur 1 gesehen in Richtung der Pfeile III-III.
- FIG. 1
- a partially sectioned side view of an inventively designed hammer drill;
- FIG. 2
- a partial representation of the area "X" from
FIG. 1 ; - FIG. 3
- a sectional view of the hammer drill after
FIG. 1 seen in the direction of arrows III-III.
Das Ritzel 8 steht in kämmendem Eingriff mit einem Zahnrad 14, welches drehfest auf einer Zwischenwelle 16 angeordnet ist, die sich wiederum parallel zur Bohrwerkzeugachse 10 nach vorn erstreckt. In einem vorderen Abschnitt der Zwischenwelle 16 ist wiederum drehfest ein Zahnrad 18 vorgesehen. Neben der Zwischenwelle 16 und konzentrisch zur Bohrwerkzeugachse 10 ist eine mit dem Werkzeug drehfest verbundene Außenhülse 20 vorgesehen, welche mittels eines in Richtung der Werkzeugachse 10 hin und her verschiebbaren Kupplungselements 22 durch kämmenden Eingriff mit dem Zahnrad 18 in Antriebsverbindung oder außer Antriebsverbindung gebracht werden kann.The pinion 8 is in meshing engagement with a gear 14 which rotatably disposed on an
Innerhalb der Außenhülse 20 ist eine Erregerhülse 24 in Richtung der Bohrwerkzeugachse 10 hin und her verschiebbar vorgesehen. Die Erregerhülse 24 definiert einen Raum 26, der ein Luftpolster begrenzt und einen Schlagkolben 28 wiederum in Längsrichtung der Bohrwerkzeugachse 10 verschieblich aufnimmt. Durch Hin- und Herbewegen der Erregerhülse 24 wird das Luftpolster in an sich bekannter Weise entspannt bzw. komprimiert und hierdurch eine Hin- und Herbewegung des Schlagkolbens 28 hervorgerufen. Hierbei übt der Schlagkolben 28 mit seiner vorderen Stirnseite 30 eine Schlagwirkung auf einen Zwischenstößel 32 aus, der auf das nicht dargestellte Bohrwerkzeug übertragen wird.Within the
Die Hin- und Herbewegung der Erregerhülse 24 wird durch eine Taumeltriebvorrichtung 34 bewirkt, die nachfolgend beschrieben wird. Die Taumeltriebvorrichtung 34 umfasst ein Rotationselement 36 welches auf der Zwischenwelle 16 gelagert und gegenüber dieser drehbar ist. Das Rotationselement 36 kann durch Verschieben einer Kopplungshülse 38, die drehfest auf der Zwischenwelle 16 vorgesehen ist, über eine Klauenkupplung 40 an ihrer der Kopplungshülse 38 zugewandten Seite drehfest mit der Zwischenwelle 16 verbunden werden (Schlagbetrieb). Das Rotationselement 36 ist von einem Taumelscheibenelement 42 umgeben, wobei zwischen ihnen Wälzkörper 44 vorgesehen sind, derart dass das Rotationselement 36 die Innenschale und die Taumelscheibe 42 die Außenschale des dadurch gebildeten Lagers darstellt. Die Taumelscheibe 42 umfasst an ihrer der Erregerhülse 24 zugewandten Seite einen stiftförmigen Ansatz 46, der gegebenenfalls unter Zwischenschaltung eines Kalottenlagers in eine Öffnung 48 der Erregerhülse eingreift.The reciprocating motion of the
Bei drehfester Kopplung des Rotationselements 36 mit der Zwischenwelle 16 führt die Taumelscheibe 42 eine pendelnde oder kippende Bewegung durch. Dabei bewegt sich der stiftförmige Ansatz 46 pendelnd in der Zeichnungsebene der
Auf der der Erregerhülse 24 diamtral gegenüberliegenden Seite der Taumelscheibe 42 ist ein Gewichtskörper 50 derart vorgesehen, dass er sich durch die Taumelscheibe 42 angetrieben in einer Zwangsführung linear und parallel zur Bohrwerkzeugachse 10 hin und her bewegen lässt. Die Zwangsführung wird dadurch erreicht, dass an den beiden Längsseiten 52, 54 des quaderförmigen Gewichtskörpers 50 randoffene Führungsausnehmungen 56, 58 ausgebildet sind, die Teilkreisform aufweisen und je einen parallel zur Werkzeugachse 10 erstreckten Stab 60, 62 als Längsführungsmittel aufnehmen. Die Stäbe 60, 62 sind mit ihren Längsenden 64, 66 an einem im Betrieb gehäusefesten Bauteil 68, 70 gehalten.On the
Der Gewichtskörper 50 umfasst eine als Bohrung ausgebildete Öffnung 72, in welche ein Kopplungsmittel 74 in Form eines einstückig an die Taumelscheibe 42 angeformten kugelkopfförmigen Fortsatzes 76 bei Bedarf unter Zwischenordnung eines Kalottenlagers eingreift.The
Wenn im Schlagbetrieb die Erregerhülse 24 durch die taumelnde oder hin und her kippende Bewegung der Taumelscheibe 42 bzw. des Ansatzes 46 in Richtung der Bohrwerkzeugachse 10 nach hinten bewegt wird, so wird gleichzeitig und parallel zur Bohrwerkzeugachse 10 der Gewichtskörper 50 nach vorn bewegt. Hierdurch kann die Laufunruhe im Schlagbetrieb oder Schlagbohrbetrieb wesentlich reduziert werden. Der linear hin und her bewegbare Gewichtskörper 50 ist in einem quaderförmigen Gehäuseabschnitt 78 des Maschinengehäuses untergebracht.When in impact operation, the
Claims (7)
- Drill hammer having an air cushion percussion mechanism with which an energising bushing (24), forming a cavity (26) for the air cushion and within which a percussion piston (28) can be moved back and forth, is disposed concentrically to the bore tool axis (10), and with a wobble drive device (34) for displacing the energising bushing (24) back and forth in the direction of the drill tool axis (10), the rotation element (36) of which driving the nutating disc (42) being disposed for rotational drive parallel to the drill tool axis (10) but at a distance therefrom, a weight (50) being provided on the side of the nutating disc (42) diametrically opposing the energising bushing (24), characterised in that the weight is provided such that it may be moved back and forth in a restricted manner linearly and parallel to the drill tool axis (10) under the action of the nutating disc (42).
- Drill hammer according to claim 1, characterised in that the restricted guidance of the weight (50) is effected by a component fixed to the housing during operation.
- Drill hammer according to either claim 1 or claim 2, characterised in that the restricted guidance is formed by at least one linear rod (60, 62) mounted to a component (68, 70) fixed to the housing and engaging into a guide recess (56, 58) extending linearly in the direction of motion in the weight (50).
- Drill hammer according to claim 3, characterised in that the guide recess (56, 58) has an open edge.
- Drill hammer according to either claim 3 or claim 4, characterised in that the rod (60, 62) is a round rod.
- Drill hammer according to claim 3, claim 4 or claim 5, characterised in that the rod (60, 62) has a length exceeding the length of the path travelled by said weight (50) during its back and forth motion and in that the rod (60, 62) is mounted at its ends (64, 66) to a component (68, 70) fixed to the housing.
- Drill hammer according to any one of the preceding claims, characterised in that the weight (50) is cuboid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19851888A DE19851888C1 (en) | 1998-11-11 | 1998-11-11 | Hammer drill |
| DE19851888 | 1998-11-11 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| EP1000712A2 EP1000712A2 (en) | 2000-05-17 |
| EP1000712A3 EP1000712A3 (en) | 2003-02-05 |
| EP1000712B1 EP1000712B1 (en) | 2007-01-10 |
| EP1000712B9 true EP1000712B9 (en) | 2008-02-20 |
Family
ID=7887350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99121944A Expired - Lifetime EP1000712B9 (en) | 1998-11-11 | 1999-11-08 | Hammer drilling machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6112830A (en) |
| EP (1) | EP1000712B9 (en) |
| DE (2) | DE19851888C1 (en) |
| ES (1) | ES2281157T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3646918A1 (en) * | 2018-11-05 | 2020-05-06 | Mt.Derm | Device for punctuation of an organic tissue and drive module |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0100605D0 (en) * | 2001-01-10 | 2001-02-21 | Black & Decker Inc | Hammer |
| DE10103141A1 (en) * | 2001-01-24 | 2002-07-25 | Hilti Ag | Electrical hand tool appliance e.g. hammer drill, has pneumatic striking tool and valve openings sealed off to vent pneumatic spring through riveting header |
| DE10103996C1 (en) * | 2001-01-30 | 2002-10-02 | Wacker Werke Kg | Air spring hammer mechanism for a hammer and / or hammer drill with a short piston |
| DE10136515C2 (en) * | 2001-07-26 | 2003-10-23 | Wacker Construction Equipment | Hammer and / or hammer with handle |
| US20050087352A1 (en) * | 2002-07-04 | 2005-04-28 | Atlas Copco Electric Tools Gmbh | Portable Tool |
| US6932166B1 (en) | 2002-12-03 | 2005-08-23 | Paul Kirsch | Pneumatic tool |
| DE202004021825U1 (en) * | 2003-03-21 | 2011-05-05 | Black & Decker Inc., Newark | Vibration reduction device for a power tool and power tool with such a device |
| DE602004026134D1 (en) * | 2003-04-01 | 2010-05-06 | Makita Corp | power tool |
| DE102004012820B3 (en) * | 2004-03-16 | 2005-11-17 | Wacker Construction Equipment Ag | Wobble drive |
| DE102004020177B4 (en) * | 2004-04-24 | 2024-07-18 | Robert Bosch Gmbh | Hand tool with a rotating and/or percussive drive |
| EP1779979B1 (en) * | 2004-04-30 | 2018-02-21 | Makita Corporation | Working tool |
| GB2429675A (en) * | 2005-06-23 | 2007-03-07 | Black & Decker Inc | Vibration dampening mechanism |
| US7383895B2 (en) * | 2005-08-19 | 2008-06-10 | Makita Corporation | Impact power tool |
| JP4362657B2 (en) * | 2005-09-07 | 2009-11-11 | ヨコタ工業株式会社 | Electric impact tightening tool |
| JP2007175839A (en) * | 2005-12-28 | 2007-07-12 | Hitachi Koki Co Ltd | Striking tool |
| US20100038104A1 (en) * | 2006-07-10 | 2010-02-18 | Otto Baumann | Hand held machine tool |
| DE102006032214A1 (en) * | 2006-07-12 | 2008-01-17 | Robert Bosch Gmbh | Hand tool with a percussion unit |
| JP4756474B2 (en) * | 2006-07-20 | 2011-08-24 | 日立工機株式会社 | Electric tool |
| JP4863942B2 (en) | 2006-08-24 | 2012-01-25 | 株式会社マキタ | Impact tool |
| RU2464158C2 (en) * | 2007-05-01 | 2012-10-20 | Хитачи Коки Ко., Лтд. | Hand machine with reciprocating tool |
| BRPI0808724A2 (en) * | 2007-05-01 | 2015-11-24 | Hitachi Koki Kk | reciprocating tools |
| JP5126574B2 (en) * | 2007-05-01 | 2013-01-23 | 日立工機株式会社 | Reciprocating tool |
| DE102007061716A1 (en) * | 2007-12-19 | 2009-06-25 | Robert Bosch Gmbh | Tumbling drive of a hand tool machine |
| DE102008000687A1 (en) * | 2008-03-14 | 2009-09-17 | Robert Bosch Gmbh | Hand tool for impact driven tools |
| DE102008000677A1 (en) * | 2008-03-14 | 2009-09-17 | Robert Bosch Gmbh | Hand tool for impact driven tools |
| DE102008040767A1 (en) * | 2008-07-28 | 2010-02-04 | Robert Bosch Gmbh | impact device |
| DE102009001590A1 (en) | 2009-03-17 | 2010-09-23 | Robert Bosch Gmbh | Hand tool with a counter-oscillator |
| GB0912283D0 (en) * | 2009-07-15 | 2009-08-26 | Black & Decker Inc | Motor driven hammer having means for controlling the power of impact |
| US8636081B2 (en) | 2011-12-15 | 2014-01-28 | Milwaukee Electric Tool Corporation | Rotary hammer |
| DE102010062094A1 (en) * | 2010-11-29 | 2012-05-31 | Robert Bosch Gmbh | Hammer mechanism |
| US8695726B2 (en) | 2010-12-29 | 2014-04-15 | Medical Enterprises LLC | Electric motor driven tool for orthopedic impacting |
| US8393409B2 (en) * | 2010-12-29 | 2013-03-12 | Ortho Technologies, Llc | Electric motor driven tool for orthopedic impacting |
| US8936105B2 (en) * | 2010-12-29 | 2015-01-20 | Medical Enterprises LLC | Electric motor driven tool for orthopedic impacting |
| KR102127310B1 (en) * | 2010-12-29 | 2020-06-29 | 메디컬 엔터프라이시스 디스트리부션 엘엘씨 | Electric motor driven tool for orthopedic impacting |
| JP5726654B2 (en) * | 2011-07-01 | 2015-06-03 | 株式会社マキタ | Impact tool |
| DE102012005864A1 (en) | 2011-10-22 | 2013-04-25 | Wolfgang Schmid | Tumbling shaft drive structure for pneumatic spring hammer mechanism in drill and percussion hammer, has control shaft and safety clutch that are switched to transmission state to transmit torque of hub to output portion or carrier |
| US10149711B2 (en) | 2012-03-30 | 2018-12-11 | Depuy Mitek, Llc | Surgical impact tool |
| US9981372B2 (en) * | 2012-12-31 | 2018-05-29 | Robert Bosch Tool Corporation | Reciprocating tool with fluid driven counterweight |
| DE102013212554B4 (en) * | 2013-06-28 | 2023-12-14 | Robert Bosch Gmbh | Hand machine tool drive device |
| DE102014200393A1 (en) | 2014-01-13 | 2015-07-16 | Metabowerke Gmbh | Percussion unit |
| JP6510250B2 (en) * | 2015-01-29 | 2019-05-08 | 株式会社マキタ | Work tools |
| EP4234171A1 (en) * | 2022-02-24 | 2023-08-30 | Hilti Aktiengesellschaft | Power tool with hammer mechanism |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH546132A (en) * | 1971-12-22 | 1974-02-28 | Ruettimann Ernst | ELECTRIC HAMMER WITH PENDULUM IMPACT SYSTEM. |
| DE2820128A1 (en) * | 1978-05-09 | 1979-11-22 | Bosch Gmbh Robert | CRAFT MACHINE |
| DE2917475A1 (en) * | 1979-04-30 | 1980-11-13 | Hilti Ag | DRILLING OR CHISEL HAMMER |
| DE3427342A1 (en) * | 1984-07-25 | 1986-01-30 | Robert Bosch Gmbh, 7000 Stuttgart | Hammer drill |
| DE3506695A1 (en) * | 1985-02-26 | 1986-08-28 | Robert Bosch Gmbh, 7000 Stuttgart | DRILLING HAMMER |
| NL8801466A (en) * | 1988-06-07 | 1990-01-02 | Emerson Electric Co | DEVICE FOR DRIVING A DRILL AND / OR IMPACT TOOL. |
| DE4013512A1 (en) * | 1990-04-27 | 1991-10-31 | Black & Decker Inc | SWITCHING DEVICE FOR SWITCHING A POWERED TOOL |
| DE4135240A1 (en) * | 1991-10-25 | 1993-04-29 | Bosch Gmbh Robert | DRILLING HAMMER |
| DE4239294A1 (en) * | 1992-11-23 | 1994-05-26 | Black & Decker Inc | Hammer drill with pneumatic hammer mechanism |
| DE19646622B4 (en) * | 1996-11-12 | 2004-07-01 | Wacker Construction Equipment Ag | Tool that can be carried in one movement |
| DE19651828A1 (en) * | 1996-12-13 | 1998-06-18 | Bosch Gmbh Robert | Multi-speed gearbox for hand machine tools |
-
1998
- 1998-11-11 DE DE19851888A patent/DE19851888C1/en not_active Expired - Fee Related
-
1999
- 1999-11-08 DE DE59914142T patent/DE59914142D1/en not_active Expired - Lifetime
- 1999-11-08 EP EP99121944A patent/EP1000712B9/en not_active Expired - Lifetime
- 1999-11-08 US US09/435,349 patent/US6112830A/en not_active Expired - Lifetime
- 1999-11-08 ES ES99121944T patent/ES2281157T3/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3646918A1 (en) * | 2018-11-05 | 2020-05-06 | Mt.Derm | Device for punctuation of an organic tissue and drive module |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1000712A3 (en) | 2003-02-05 |
| EP1000712B1 (en) | 2007-01-10 |
| ES2281157T3 (en) | 2007-09-16 |
| US6112830A (en) | 2000-09-05 |
| EP1000712A2 (en) | 2000-05-17 |
| DE59914142D1 (en) | 2007-02-22 |
| DE19851888C1 (en) | 2000-07-13 |
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