EP0764502B1 - Appareil manuel de perçage assisté par percussion - Google Patents
Appareil manuel de perçage assisté par percussion Download PDFInfo
- Publication number
- EP0764502B1 EP0764502B1 EP96810539A EP96810539A EP0764502B1 EP 0764502 B1 EP0764502 B1 EP 0764502B1 EP 96810539 A EP96810539 A EP 96810539A EP 96810539 A EP96810539 A EP 96810539A EP 0764502 B1 EP0764502 B1 EP 0764502B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotational speed
- measured
- hammer
- hand drill
- evaluation unit
- 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
- 238000009527 percussion Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims description 65
- 238000011156 evaluation Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
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
-
- 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
- B25D2211/068—Crank-actuated impulse-driving mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of 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
- B25D2216/0007—Details of percussion or rotation modes
- B25D2216/0023—Tools having a percussion-and-rotation mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/195—Regulation means
- B25D2250/205—Regulation means for torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/221—Sensors
Definitions
- the invention relates to an impact-supported hand drill, in particular a Hammer drill, according to the preamble of the generic claim 1.
- Impact-assisted hand drills are used in the construction, installation and Electrical and used in related fields. Because of their high Mining performance in mineral substrates, such as concrete, masonry or rock, have been chosen for professional use in particular Hammer drills proven.
- Hammer drills have a continuous driven tool holder and a motor-operated Beating mechanism. In operation, one in the tool holder clamped tool automatically in time sequence hammer-like impulses transferred, which support the processing of the surface. At the same time it is in the tool holder inserted tool is rotated continuously in the underground to create an anchor hole suitable for dowels.
- the striking mechanism is an electro-pneumatic striking mechanism transmits longitudinal shocks to the tool during operation.
- the cutting edge on the tool tip is inserted into the Driven underground and creates a small notch.
- the Angle that the cutting edge at the tip of the continuously rotated tool sweeping between two strokes is called the conversion angle.
- the conversion angle is chosen such that only after periodic repetition occurs a few complete revolutions. To this In this way it should be avoided that the cutting edge on the tool tip is in the immediate vicinity Episode hits existing notches and deepens them further.
- the notches can have conversion angles such as 30 °, 36 °, 45 °, 52 °, 60 ° etc. deepened to such an extent that the shear effect only removes insufficient material, which greatly reduces the drilling performance of the device. For this reason such periodic conversion angle by suitable design of the gearbox Avoided hammer drill.
- GB2160320A discloses one, also for a hand drill with common features applicable, stress-dependent, advantageously microprocessor-controlled periodically Repeatedly measuring, self-optimizing control for the speed of the work tool holder for the purpose of optimizing the drilling performance.
- Stress waves in the shank of the tool which at various points on the Tool shaft measured and integrated as energy components evaluated become.
- a disadvantage is the complex measurement of the stress waves and their Integration evaluation.
- a measurement is carried out on the shank of the tool due to the longitudinal impacts to fatigue the measuring device.
- US4660656 discloses a reaction torque measurement in hydraulic Drive motor of a tool and a control of the feed realized via weights to ensure a constant reaction torque. Such a regulation about the feed is not applicable to a hand drill.
- the solution to this problem is an impact-supported hand drill, in particular a hammer drill, which the in the characterizing section of Features claim 1 listed features.
- the inventive Impact-supported hand drill has an electric one Drive motor for a tool holder that can be rotated continuously around its longitudinal axis, a control device interacting with the electric drive motor for the number of revolutions of the tool holder, and a striking mechanism for the periodic delivery of axial impacts on a tool clamped in the tool holder.
- the electric drive motor is equipped with a measuring device for the Reaction torque coupled.
- the control device includes one Evaluation unit, which with the measuring device for the reaction torque is connected and via which the speed of the tool holder can be regulated in such a way that the reaction torque measured on the drive motor during operation is maximum.
- the impact-supported hand drill Due to the inventive design of the impact-supported hand drill it can be operated in the optimal performance range. It turns out that at a maximum measured reaction torque also the drilling performance Maximum.
- the device is always optimal regardless of the surface Power range operated. The user does not need any additional Operating steps required.
- the optimized drilling performance shortens the time required to create a dowel hole suitable for dowels is required. This makes the operation of the device even more economical.
- the measuring device comprises Strain gauges or load cells attached to the electrical suspension Drive motor are arranged in the housing.
- the chosen arrangement of the Strain gauges or load cells require no special design effort. Torque measurement methods using strain gauges or load cells have been tried and tested under the loads to which impact-assisted hand drills are sometimes exposed are to be carried out with sufficient accuracy.
- the control device By connecting the evaluation unit to a memory unit in which different Speed ranges are defined, and the control device is designed such that according to the evaluation unit, these speed ranges are increasing Speeds can be set automatically after activating the Control device by the user finding the optimal speed with maximum associated reaction torque in a very short time. This will for each set speed, the associated reaction torque is determined and in the Storage unit held. The control device then automatically regulates the speed of the tool holder which is the largest value of the measured Reaction torque corresponds. This regulation is independent of the user. This only has to activate the control device once, for example, as to then, with a push button on the handle. The regulation then takes place fully automatic, without any further action on the part of the user. He can only by the noise of the electric motor recognize that regulation is taking place.
- the speed ranges defined in the storage unit preferably correspond to conversion angles of 37 ° -39 °, 46 ° -50 °, 61 ° -65 ° and 91 ° -98 °.
- This relationship serves the approximate determination of the optimal speed ranges or conversion angle.
- the speed ranges corresponding to the conversion angle ranges are controlled and the speeds varied accordingly.
- the associated reaction torque on the drive motor is determined for each set speed.
- the optimal speed at which the impact-supported hand drill is to be operated is regulated by the control device to the speed at which the greatest reaction torque was measured.
- different ideal speeds are in the storage unit fixed.
- the control device is designed such that according to the Evaluation unit, these ideal speeds are automatically adjustable and the speed of the Tool holder can be varied within a range of ⁇ 5% of the ideal speed.
- the associated reaction torque is measured for each speed and in the storage unit. Then the speed of the tool holder is inside a tight tolerance of ⁇ 1 ° can be regulated automatically to the speed at which the maximum reaction torque was determined.
- the device according to the invention thus corresponds to the ideal rotation angles of 38 °, 48 °, 63 ° and 95 °, each with a tolerance of ⁇ 1 °, the relationship between the speed and the conversion angle according to the relationship given above given is.
- Both variants of the invention are approximate Specified speed ranges in which the greatest possible reaction torque is expected.
- the in the relationship between the conversion angle and the speed of the Tool pick-up incoming beat frequency is particularly well known Hammer drills with electro-pneumatic hammer mechanism not a constant, but changes with the speed. For the approximate determination of the This does not matter speed ranges.
- the device according to the invention is used to regulate the speed of the tool holder only in dependence on the measured reaction torque, so that also in In this case, the speed dependence of the stroke frequency is irrelevant.
- the evaluation unit comprises a microprocessor which is controlled in such a way that the speed of the tool holder is adjusted Measurement of the measured reaction torques periodically during operation is monitored and in the case of detected deviations, the speeds outside the specified range limits, readjustment if necessary is initiated.
- the method for operating an impact-assisted device equipped according to the invention Hand drill is characterized in that the reaction torque on Drive motor is measured periodically by the measuring device and the measured values the evaluation unit are forwarded.
- the control device the speed of the tool holder according to the Evaluation unit controlled in such a way that the measured reaction torque is maximal is.
- the inventive method is characterized by its simple control loop from which essentially only a single control variable is to be considered.
- the control device preferably sets automatically after its activation the speed of the tool holder at which it is expected that measured reaction torque is maximum. To do this, in the storage unit specified speed values are followed in succession and the associated measured Reaction torques measured and recorded in the storage unit. The control unit finally regulates the speed of the tool holder to found optimal speed and continuously checks whether the Control condition is fulfilled, i.e. the measured reaction torque on Drive motor is maximum, and adjusts if necessary. This ensures that the impact-supported hand drill is always in the optimal performance range is operated.
- an impact-supported hand drill according to the invention is included in its entirety provided with the reference number 1.
- Hand drill shown is in particular a hammer drill with electro-pneumatic hammer mechanism.
- the individual mechanical and electrical Function blocks are arranged in a housing 2.
- the mechanical Function blocks include an electric drive motor 3, an electropneumatic one Impact mechanism 5, a gear 7 and a tool holder 9, into which a tool 10 is inserted.
- the force-transmitting coupling of the mechanical function blocks one below the other is indicated by double dashes.
- the electric drive motor 3 is via a mechanical connection 4 with the electropneumatic striking mechanism 5 connected. In this way, an exciter piston 51 is driven via an eccentric, which accelerates a flying piston 52, which strikes a striker 53 which moves into the tool holder 9 continues and the axial impacts on the Tool holder 9 transfers clamped tool.
- the electric drive motor 3 is connected to a second mechanical connection 6 a gear 7 connected in which the revolutions of the electric motor in one fixed ratio can be translated or reduced.
- Another mechanical connection 8 transmits the rotary movement of the electric drive 3 or the gear 7 on the tool holder 9, which is thereby in operation is continuously rotated around its axis.
- the continuous rotation of the Tool holder 9 is transferred to the clamped tool 10.
- the hammer drill 1 is started up by means of a switch S on Handle part of the housing 1.
- the switch S closes the contact to the energy source, which can be an accumulator or the electrical network to which the hammer drill 1 is connected via a supply line, not shown, and activates the Control device C for the electric drive motor 3.
- the control device C With the help of Control device C is the speed of the known hammer drill 1 Drive motor 3 and the tool holder 9 coupled therewith controllable.
- the control device C comprises a known one Leading edge control.
- the electric drive motor 3 with a measuring device 12 is for coupled the reaction torque, which in operation on the drive motor 3rd acts.
- the measuring device 12 is preferably by means of strain gauges or Load cells formed, which on the suspension 13, 14 of the electric drive motor 3 are arranged.
- strain gauges or load cells are for example from available from Hottinger Baldwin Messtechnik GmbH, D-6100 Darmstadt 1.
- a suitable strain gauge is, for example, in company brochure No. G 24.01.7 described.
- the control device C comprises an evaluation unit E, which with the Measuring device 12 for the reaction torque is connected.
- Fig. 1 are the electronic connections symbolized by arrows.
- the evaluation unit E processes the measured and digitized reaction torques and causes the Control device C to control the speed of the tool holder 9 in such a way that the reaction torque measured during operation on the electric drive motor 3 is maximum.
- the evaluation unit E is connected to a memory unit M in which Measurement data can be buffered.
- the storage unit M can also be used for retrieval of the tax information contained therein can be used, as described in more detail below is explained.
- the Evaluation unit a microprocessor P, which has a special sequence of control enables, as will be explained.
- Control device C activated (20 or 30).
- the control device C accesses the control information stored in the storage unit M.
- the control information says that the greatest reaction torque can be found at defined speed ranges.
- the Control device C controls the speed in succession to these speed ranges and scans them through.
- the measuring device 12 is used for each set speed a measurement of the associated reaction torque on electric drive motor 3 (21-23). The measured and digitized measured values are stored in the storage unit and then compared with one another.
- the control device C provides the evaluation unit E. determined speed (25) and controls it so that the measured The maximum reaction torque remains (26).
- the control information in the memory unit M is selected such that the Speed ranges to be set conversion angles of 37 ° - 39 °, 46 ° - 50 °, 61 ° - 65 ° and correspond to 91 ° - 98 °.
- control device C takes the Storage unit M the control information that different one after the other Ideal speeds should be set.
- Each ideal speed is in a range of ⁇ 5% varies and the associated speed is added to each set speed Reaction torque measured on the electric drive motor 3, digitized and in the memory unit M temporarily (31-33).
- the control device C adjusts the determined speed (35) and controls it in such a way that the measured reaction torque is maximal remains (36).
- the control information is in the memory unit M selected such that the ideal speeds to be set Transfer angles of 38 °, 48 °, 63 ° and 95 ° with a tolerance of ⁇ 1 ° each correspond.
- the speed of the tool holder and the stroke frequency are decoupled, so that an exact determination is possible.
- the speed of the tool holder 9 is only regulated as a function of the reaction torque measured on the drive motor 3, so that the speed-dependent dependence of the impact frequency is also irrelevant in this case.
- the reaction torques are measured in speed steps of 2 [rpm].
- the microprocessor P arranged in the evaluation unit E runs in an advantageous manner controlled in such a way that the setting of the speed of the tool holder 9 after Measurement of the measured reaction torques periodically during operation is monitored and in the case of detected deviations, which speeds outside the specified speed range limits, possibly one Readjustment is initiated.
- the detection of the reaction torques on electric drive motor takes place about 600 to about 6000 times per minute.
- the impact-supported hand drill Due to the inventive design of the impact-supported hand drill it can be operated in the optimal performance range. It turns out that at a maximum measured reaction torque also the drilling performance Maximum.
- the device is always optimal regardless of the surface Power range operated. By operating in the optimal performance range, that is Impact-supported hand drill used very efficiently.
- the optimized drilling performance shortens the time required to create a dowel hole suitable for dowels is required. This makes the operation of the device even more economical.
- the Evaluation unit is connected to a storage unit in which different Speed ranges or ideal speeds are set, and the control device is designed such that these speed ranges according to the evaluation unit can be automatically adjusted and varied according to increasing speeds, can after the activation of the control device by the user finding the optimal speed with maximum associated reaction torque in a very short time Time.
- the optimal speed is controlled independently of the user. This only has to activate the control device once, for example, as to then, with a push button on the handle. The regulation then takes place fully automatic, without any further action on the part of the user. At best, he can changing noise of the electric motor recognize that there is any regulation takes place.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Claims (10)
- Outil de forage portatif assisté par percussion, comprenant un moteur électrique d'entraínement (3) pour un mandrin d'outil (9) tournant en continu autour de son axe longitudinal, un mécanisme de percussion (5) pour appliquer périodiquement des percussions axiales sur un outil (10) serré dans le mandrin d'outil (9), et un dispositif de régulation (C) du moteur électrique d'entraínement associé (3) avec un dispositif de mesure (12) pour la sollicitation et un module d'analyse associé (E) pour une régulation auto-optimisante de la vitesse de rotation du mandrin d'outil (9), caractérisé en ce que le dispositif de mesure (12) est accouplé au moteur électrique d'entraínement (3) pour mesurer le couple de réaction, et en ce que la vitesse de rotation associée au couple de réaction maximal est réglable automatiquement pour les besoins de la régulation auto-optimisante par l'intermédiaire du module d'analyse (E).
- Outil de forage portatif assisté par percussion selon la revendication 1, caractérisé en ce que le dispositif de mesure (12) comprend des jauges extensométriques ou des cellules de pesage qui sont implantées sur la suspension (13, 14) du moteur électrique d'entraínement (3) dans un carter (2).
- Outil de forage portatif assisté par percussion selon la revendication 1 ou 2, caractérisé en ce que le module d'analyse (E) est connecté à un module de mémorisation (M) dans lequel sont enregistrées diverses plages de vitesses de rotation, en ce que le dispositif de régulation (C) est conçu de façon que, en fonction du module d'analyse (E), ces plages de vitesses de rotation puissent être adoptées automatiquement selon les vitesses de rotation croissantes, pour chaque vitesse de rotation adoptée le couple de réaction correspondant étant déterminé et enregistré dans le module de mémorisation (M), et en ce que la régulation s'effectue ensuite en fonction de la vitesse de rotation du mandrin d'outil (9) qui correspond à la valeur maximale des couples de réaction mesurés.
- Outil de forage portatif assisté par percussion selon la revendication 3, caractérisé en ce que les plages de vitesses de rotation enregistrées dans le module de mémorisation (M) correspondent à des angles de conversion de 37 à 39°, de 46° à 50°, de 61° à 65° et de 91° à 98°.
- Outil de forage portatif assisté par percussion selon la revendication 1 ou 2, caractérisé en ce que le module d'analyse (E) est connecté à un module de mémorisation (M) dans lequel diverses vitesses de rotation idéales sont enregistrées, et en ce que les vitesses de rotation idéales sont adoptées automatiquement par l'intermédiaire du dispositif de régulation (C) en fonction du module d'analyse (E), et la vitesse de rotation du mandrin d'outil (9) peut à chaque fois être modulée dans une plage de ±10 % de la vitesse de rotation idéale, les couples de réaction correspondants étant mesurés et enregistrés dans le module de mémorisation (M), et en ce que la vitesse de rotation du mandrin d'outil (9) peut ensuite être réglée sur celle à laquelle le couple de réaction maximal a été constaté.
- Outil de forage portatif assisté par percussion selon la revendication 5, caractérisé en ce que les vitesses de rotation idéales correspondent à des angles de conversion de 38°, 48°, 63° et 95° avec, pour chacun d'eux, une tolérance de ±1°.
- Outil de forage portatif assisté par percussion selon une des revendications précédentes, caractérisé en ce que le module d'analyse (E)' comprend un microprocesseur (P) qui surveille périodiquement le réglage de la vitesse de rotation du mandrin d'outil (9) en fonction des couples de réaction mesurés et, le cas échéant, ordonne un réglage d'appoint.
- Outil de forage portatif assisté par percussion selon une des revendications précédentes, caractérisé en ce que le dispositif de régulation (C) peut être activé de l'extérieur par l'intermédiaire d'un commutateur (S) disposé sur un carter (2).
- Procédé pour la mise en oeuvre d'un outil de forage portatif assisté par percussion (1) selon l'une des revendications précédentes, caractérisé en ce que le couple de réaction est mesuré périodiquement par le dispositif de mesure (12), et les valeurs mesurées sont transmises au module d'analyse (E), et en ce que le dispositif de régulation (C) régule la vitesse de rotation du mandrin d'outil (9) en fonction du module d'analyse (E), de façon que le couple de réaction mesuré soit maximal.
- Procédé selon la revendication 9, caractérisé en ce que, après son activation, le dispositif de régulation (C) établit automatiquement la vitesse de rotation du mandrin d'outil (9) à la valeur pour laquelle le couple de réaction mesuré est maximal, des valeurs de vitesse de rotation enregistrées dans le module de mémorisation (M) étant lancées les unes après les autres et les couples de réaction mesurés correspondants étant mesurés et enregistrés dans le module de mémorisation (M), et en ce que le module de régulation (C) ajuste en continu la vitesse de rotation optimale trouvée.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19534850 | 1995-09-20 | ||
DE19534850A DE19534850A1 (de) | 1995-09-20 | 1995-09-20 | Schlagunterstütztes Handbohrgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0764502A1 EP0764502A1 (fr) | 1997-03-26 |
EP0764502B1 true EP0764502B1 (fr) | 2001-03-28 |
Family
ID=7772639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810539A Expired - Lifetime EP0764502B1 (fr) | 1995-09-20 | 1996-08-13 | Appareil manuel de perçage assisté par percussion |
Country Status (5)
Country | Link |
---|---|
US (1) | US6044918A (fr) |
EP (1) | EP0764502B1 (fr) |
JP (1) | JPH09108919A (fr) |
CN (1) | CN1076237C (fr) |
DE (2) | DE19534850A1 (fr) |
Families Citing this family (45)
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US6536536B1 (en) * | 1999-04-29 | 2003-03-25 | Stephen F. Gass | Power tools |
DE19961586A1 (de) * | 1999-12-21 | 2001-07-05 | Bosch Gmbh Robert | Schlagunterstützte Handbohrmaschine |
DE10021356A1 (de) * | 2000-05-02 | 2001-11-08 | Hilti Ag | Drehendes Elektrohandwerkzeuggerät mit Sicherheitsroutine |
DE10033362A1 (de) * | 2000-07-08 | 2002-01-17 | Hilti Ag | Elektrohandwerkzeug mit Leerschlagabschaltung |
DE10034359A1 (de) * | 2000-07-14 | 2002-01-24 | Hilti Ag | Schlagendes Elektrohandwerkzeuggerät |
DE10101708B4 (de) * | 2001-01-15 | 2006-02-09 | Tracto-Technik Gmbh | Verfahren zum Felsmeißeln |
DE10117121A1 (de) * | 2001-04-06 | 2002-10-17 | Bosch Gmbh Robert | Handwerkzeugmaschine |
DE10136515C2 (de) * | 2001-07-26 | 2003-10-23 | Wacker Construction Equipment | Bohr- und/oder Schlaghammer mit Handgriff |
DE10137157A1 (de) * | 2001-07-30 | 2003-02-20 | Hilti Ag | Schlagendes Elektrowerkzeuggerät |
DE10160864A1 (de) | 2001-12-12 | 2003-06-26 | Hilti Ag | Axial schlagendes Elektrohandwerkzeuggerät |
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JP4867464B2 (ja) * | 2006-05-10 | 2012-02-01 | マックス株式会社 | ドリル |
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KR100822816B1 (ko) * | 2006-09-05 | 2008-04-18 | 김금균 | 전기오거 인버터 컨트롤 팩 |
JP5050667B2 (ja) * | 2007-06-05 | 2012-10-17 | マックス株式会社 | 打撃工具 |
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US8690497B2 (en) * | 2008-10-30 | 2014-04-08 | Black & Decker Inc. | Handle and attachments for right angle drill |
US8418778B2 (en) | 2010-01-07 | 2013-04-16 | Black & Decker Inc. | Power screwdriver having rotary input control |
US9266178B2 (en) | 2010-01-07 | 2016-02-23 | Black & Decker Inc. | Power tool having rotary input control |
US9475180B2 (en) | 2010-01-07 | 2016-10-25 | Black & Decker Inc. | Power tool having rotary input control |
WO2011085194A1 (fr) | 2010-01-07 | 2011-07-14 | Black & Decker Inc. | Tournevis motorisé possédant une commande d'entrée rotative |
DE102010043032A1 (de) * | 2010-10-28 | 2012-05-03 | Hilti Aktiengesellschaft | Steuerungsverfahren für eine Werkzeugmaschine und eine Werkzeugmaschine |
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DE102012206761A1 (de) * | 2012-04-25 | 2013-10-31 | Hilti Aktiengesellschaft | Handgeführtes Arbeitsgerät und Verfahren zum Betreiben eines handgeführten Arbeitsgeräts |
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CN104837427B (zh) | 2012-11-14 | 2017-09-22 | 不列颠哥伦比亚癌症机构分部 | 管状锤钻配件 |
DE102013212626B4 (de) * | 2013-06-28 | 2024-08-08 | Robert Bosch Gmbh | Handwerkzeugmaschinenvorrichtung |
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DE4340727C2 (de) * | 1993-11-30 | 1996-02-15 | Bosch Gmbh Robert | Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen |
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-
1995
- 1995-09-20 DE DE19534850A patent/DE19534850A1/de not_active Withdrawn
-
1996
- 1996-08-13 DE DE59606658T patent/DE59606658D1/de not_active Expired - Lifetime
- 1996-08-13 EP EP96810539A patent/EP0764502B1/fr not_active Expired - Lifetime
- 1996-09-18 CN CN96112564A patent/CN1076237C/zh not_active Expired - Fee Related
- 1996-09-20 JP JP8250137A patent/JPH09108919A/ja active Pending
- 1996-09-20 US US08/716,925 patent/US6044918A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0764502A1 (fr) | 1997-03-26 |
US6044918A (en) | 2000-04-04 |
DE59606658D1 (de) | 2001-05-03 |
CN1076237C (zh) | 2001-12-19 |
DE19534850A1 (de) | 1997-03-27 |
CN1149517A (zh) | 1997-05-14 |
JPH09108919A (ja) | 1997-04-28 |
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