EP3030383B1 - Angle grinder having an electromotive direct drive - Google Patents
Angle grinder having an electromotive direct drive Download PDFInfo
- Publication number
- EP3030383B1 EP3030383B1 EP14734767.8A EP14734767A EP3030383B1 EP 3030383 B1 EP3030383 B1 EP 3030383B1 EP 14734767 A EP14734767 A EP 14734767A EP 3030383 B1 EP3030383 B1 EP 3030383B1
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- EP
- European Patent Office
- Prior art keywords
- housing part
- angle grinder
- tool
- electromotive drive
- housing
- 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.)
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- 238000003754 machining Methods 0.000 claims description 27
- 238000001816 cooling Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 240000006829 Ficus sundaica Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/008—Cooling means
Definitions
- the invention relates to an angle grinder with an electromotive direct drive.
- An angle grinder according to independent claim 1 has the advantage of being particularly compact, powerful and at the same time ergonomically easy to handle.
- a first housing of the angle grinder has according to the invention a first housing part and a second housing part.
- the first housing part and the second housing part are to be understood here in particular as theoretical constructions that do not exist in practice. According to the invention, the first housing part and the second housing part are designed as separate component units.
- the second housing part is as a handle educated.
- the term "handle" is intended to mean a component around which at least one hand of an operator can be placed to guide the power tool 10.
- a ratio of a diameter of the electromotive drive to a diameter of the second housing part is between 0.6 and 1.1, but preferably between 0.7 and 0.8.
- the ratio of a length of the power tool to a height of the first housing part should be between 1.6 and 2.8, but preferably be 2.25. As a result, a particularly good handling is achieved.
- the height h is to be understood here as the geometric dimension of the first housing part in the y direction.
- the length I of the portable power tool should be understood to mean the dimension of the power tool in the x direction.
- the length I includes an externally visible, on an upper edge of the power tool extending length l 1 of the rechargeable battery.
- At least one rechargeable battery as an energy source for the handheld power tool.
- energy source is understood here to mean a component which provides the electrical energy for the electromotive drive.
- the electromotive drive forms a first common axis with the first housing.
- the first axis is coaxial with a motor axis.
- the height h of the first housing is at least between 70 mm and 90 mm, but is preferably 80 mm.
- the height h is defined here along the first axis.
- At least one electronics is provided for energizing the electromotive drive.
- the electronics are at least partially received by the second housing.
- the rechargeable battery with the second housing part forms a second common axis, which penetrates the rechargeable battery.
- the length l of the portable power tool is between 150 mm and 200 mm, but is preferably 180 mm.
- the length I is defined along the second axis.
- the length I of the power tool includes a length l 1 of the rechargeable battery. Without the length l 1 of the rechargeable battery, the length l of the portable power tool is preferably between 130 mm and 170 mm. However, the length l of the handheld power tool without the length l 1 of the rechargeable battery is particularly preferably 150 mm.
- a particularly ergonomic hand tool machine results if the ratio of the length l of the hand tool to a circumference U of the second housing part is between 0.8 and 1.8, in particular between 1.0 and 1.6, but preferably between 1.0 and 1, 3 is located.
- the circumference U of the second housing part is between 110 and 200 mm, in particular between 125 and 185 mm, but preferably between 150 and 175 mm.
- the hand tool is ergonomically good to use in one-handed operation.
- the electromotive drive operates as a direct drive.
- a "direct drive” is to be understood that the electronically commutated motor is connected to a tool spindle without the interposition of a transmission.
- the electromotive Anstrieb an electronically commutated electric motor. It is particularly advantageous if the electronic Commutated electric motor is an internal rotor motor. As a result, high speeds and high power density can be achieved.
- the electronically commutated electric motor is an external rotor motor. If the electronically commutated electric motor is an external rotor motor, the electric motor drive is designed to be robust and can deliver high torques from the state out there. Such a drive is therefore particularly suitable for applications in which high torques are required.
- the rotational speed of the tool spindle is greater than 12 000 min -1.
- At least one fan is arranged in the first housing.
- the fan between the electric motor drive and a receptacle for a machining tool is integrated.
- an effective cooling is guaranteed.
- a weight of the portable power tool is between 0.5 and 1.0 kg.
- the weight of the portable power tool is between 0.6 and 0.7 kg.
- a processing tool for the hand tool has a diameter d which is between 60 and 100 mm, especially between 70 and 90 mm, but preferably between 75 and 80 mm.
- a ratio of the diameter d of the machining tool to the diameter d 1 of the electromotive drive which is between 1.5 and 2.6, especially between 1.8 and 2.4, but preferably between 1.9 and 2.1.
- a cutting depth of the machining tool is between 20 and 25 mm, preferably between 15 and 20.
- At least one lighting device is provided for this, a working field or the like illuminate.
- the illumination device can also project optical information onto the processing tool and / or into the environment.
- FIG. 1 a trained as angle grinder hand tool 10 is shown in a schematic representation.
- a first housing 12 consists of a first housing half shell 13 and a second housing half shell 15. The parting plane between the two housing half shells is in this case in the image plane of a viewer.
- the first housing 12 also includes a first housing part 14 and a second housing part 16.
- the first housing part 14 and the second housing part 16 are separated by an imaginary dividing line 17.
- the two housing parts 14, 16 are theoretically illustrated housing parts to illustrate the structure of the power tool 10. However, they are not mountable and / or removable housing parts.
- the dividing line 17 extends perpendicularly in the y direction (s. FIG. 1 ) and thereby crosses an axis of a sleeve-shaped portion 19.
- the axis of the sleeve-shaped portion 19 lies here in the viewing direction of the observer.
- an electric motor drive 18 is arranged in the first housing part 14.
- the electromotive drive 18 is preferably designed as an electronically commutated motor 20.
- the electric motor drive 18 drives a in FIG. 1 Tool spindle 22 not shown.
- the second housing part 16 is designed as a handle 24.
- the term "handle" is intended to mean a component around which at least one hand of an operator can be placed to guide the power tool 10.
- a rechargeable battery 26 serves as an energy source for the electric motor drive 18.
- a geometric size of the electromotive drive 18 is defined by its diameter d 1 , which in the exemplary embodiment is approximately 38 mm. The value does not take into account in the engine manufacturing process Manufacturing tolerances.
- a ratio of the diameter d 1 of the electromotive drive 18 to a diameter d 2 of the second housing part 16 is between 0.6 and 1.1.
- the ratio of the diameter d 1 of the electromotive drive 18 to the diameter d 2 of the second housing part 16 is between 0.7 and 0.8.
- FIG. 2 the hand tool 10 according to the invention is shown schematically in partial view.
- a geometric extent of the first housing part 14 is defined by its height h.
- the height h is the geometric dimension of the first housing part 14 in the y-direction.
- a geometric extent of the power tool 10 is defined by a length I.
- the length I here is the geometric dimension of the power tool 10 in the x direction.
- the length I is defined herein including an externally visible geometric dimension l 1 of the rechargeable battery 26.
- the length l 1 of the rechargeable battery 26 extends in this case at an upper edge 21 of the power tool 10.
- the ratio of the length l of the portable power tool 10 to the height h of the first housing part 14 is between 1.5 and 2.8.
- the ratio of the length l of the power tool 10 to the height h of the first housing part 14 is 2.25.
- the electromotive drive 18 forms with the first housing part 14 a first common axis 28.
- the first common axis 28 is coaxial with a Motor shaft 30 of the electric motor drive 18.
- the motor shaft 30 continues in the exemplary embodiment in the tool spindle 22.
- the height h of the first housing part is along the first axis 28 at least between 70 mm and 100 mm.
- the height h is preferably 80 mm. This information does not include possible, but to be considered deviations that may be due to manufacturing tolerances.
- An electronics 32 is provided to energize the electric motor drive 18.
- the electronics 32 is arranged in the second housing part. But it is also conceivable to integrate the electronics 32, for example in the electric motor drive 18 or run separately.
- the electronics are provided for controlling and / or regulating the electromotive drive 18 of the handheld power tool 10 as a function of a parameter concerning the handheld power tool 10.
- the second axis penetrates the rechargeable battery 26 and advantageously extends along the second housing part 16 in an axial direction of the second housing part 16 is defined along the second axis 34.
- the two axes 28, 34 are at an angle a to each other, which is between 60 ° and 120 °, especially between 80 ° and 100 °, but preferably about 90 °.
- the angle specification does not take into account manufacturing tolerances.
- the length I of the power tool 10 along the second axis 34 is at least between 150 mm and 200 mm.
- the length l is 180 mm.
- the length l of the hand tool 10 includes a length l 1 of the rechargeable battery 26 with a. This information does not take into account possible manufacturing tolerances. Without the length l 1 of the rechargeable Battery 26 is the length I of the Salesforcezuegmaschine 10 between 130 mm and 170 mm, but is preferably 150mm.
- the ratio of the length l of the second housing part 16 to the circumference U of the second housing part 16 is optimally designed.
- the optimum ratio of the length l of the second housing part 16 to the circumference U of the second housing part 16 should be at least between 0.8 and 1.8, especially between 1.0 and 1.6, but preferably between 1.0 and 1.3 ,
- the circumference U of the second housing part 16 in this case defines the gripping circumference of the handle 24.
- a particularly ergonomic embodiment of the power tool 10 is achieved by an optimal circumference U of the second housing part 16.
- the gripping circumference of the handle 24 is between 110 and 200 mm, especially between 125 and 185 mm, but preferably between 150 and 175 mm. If the grip circumference of the handle 24 is within this range of values, the handheld power tool 10 can be guided in any working position of an operator with one hand. These specifications take no account of deviations that can occur due to manufacturing tolerances.
- the electronically commutated electric motor 20 drives the tool spindle 22 directly.
- direct is to be understood that the electronically commutated electric motor 20 is connected to the tool spindle 22 without the interposition of a conventional transmission.
- the electronically commutated electric motor 20 is an internal rotor motor.
- a stator 36 which carries the current-carrying windings 38, on a motor housing 40.
- a rotor 42 which carries the permanent magnets 44 is connected to the motor shaft 30.
- the Advantages of the internal rotor motor are a high speed to be achieved with high power density.
- FIG. 3 Another embodiment of the hand tool 10 according to the invention is shown in FIG. 3 shown.
- the electronically commutated electric motor 20 is an external rotor motor.
- the stator 36 which carries the windings 38, is enclosed by the rotor 42.
- the magnetic field is generated by permanent magnets 44, which are arranged in the rotor 42.
- the rotor 42 is usually attached to the motor shaft 30 while the stator is mounted on a stator. Possible advantages of these motors are the high torques to be achieved.
- the speed at the tool spindle is at least 12 000 min -1 .
- the speed can be increased up to 20 000 min -1 .
- the cooling can be passive or active. In passive cooling, the removal of thermal energy by convection takes place. With active cooling, the thermal energy of the component to be cooled is removed by means of a cooling system.
- the cooling system is a fan 46.
- the fan 46 is integrated in the first housing part 14. It is particularly advantageous if the fan 46 is integrated between the electromotive drive 18 and a receptacle for a machining tool 48.
- other cooling systems such as Peltier elements, closed cooling circuits or the like are used.
- the weight of the hand tool 10 is between 0.5 and 1.0 kg.
- the weight of the power tool 10 is between 0.6 and 0.7 kg.
- the weight includes a weight of the rechargeable battery 26 and a weight of the machining tool 48.
- the machining tool 48 of the power tool 10 is for example a grinding, cutting or grinding disc.
- the machining tool 48 has a diameter d which is between 60 and 100 mm, but especially between 70 and 90 mm.
- the diameter d of the machining tool is between 75 and 80 mm.
- Another measure of the compactness of the machining tool and the performance of the electromotive drive 18 is a ratio of the diameter d of the machining tool 48 to the diameter d 1 of the electromotive drive 18.
- the ratio of the diameter d of the machining tool 48 to the diameter d 1 of the electromotive drive 18 between 1.5 and 2.6, but especially between 1.8 and 2.4.
- the ratio of the diameter d of the machining tool 48 to the diameter d 1 of the electromotive drive 18 is preferably between 1.9 and 2.1.
- a cutting depth of the machining tool 48 is reached, which is between 20 and 25 mm, but preferably between 15 and 20 mm.
- a protective hood 49 axially covers a circumferential region of the machining tool 48 in the radial direction and a radially extending end region 50 of the portable power tool 10.
- the hand tool 10 is designed as a battery-operated hand tool 10. As in FIG. 1 it can be seen on a rear side 52, the rechargeable battery 26 is connected.
- the battery voltage is in a range between 3.6 and 36 V, especially between 7.2 and 14.4 V, but is preferably 10.8V. The values of the battery voltage do not take into account possible battery voltage fluctuations.
- the rechargeable battery 26 consists in particular of lithium ion battery cells.
- the rechargeable battery 26 includes one or more rows of battery cells, which in turn are connected in parallel with each other.
- Each individual cell has a length of about 65 mm and a diameter of about 18 mm. But it is also conceivable that a cell has a length of 65 to 70 mm and a diameter of 14 mm to about 20 mm.
- Lithium ion batteries are characterized by a high energy density and thermal stability even at high loads, which means high performance. Another big advantage is the low self-discharge, which also means that the batteries are ready for use even with longer service lives. From these advantages, the advantages of the application according to the invention, in particular that the battery-powered router 10 on the one hand small and compact can be on the one hand and on the other hand brings high performance results.
- the rechargeable battery 26 consists of lithium-air cells, lithium-sulfur cells, lithium polymer cells or the like. Furthermore, the rechargeable battery 26 in a be realized other than the geometric design shown, such as a square execution.
- a battery voltage indicator 54 is integrated in the second housing half shell 15.
- the battery voltage indicator 54 is provided to optically indicate a level of the battery voltage. This can be done with the help of colored LED, flashing LED, digital display elements, LCD and the like.
- a sensor device may be arranged in the second housing part 16, which detects a damaged and / or incorrectly mounted machining tool and / or the jamming of the machining tool and / or the bursting of the machining tool 48 during operation of the handheld power tool 10.
- the blocking device can be designed as a slide, pin or lever.
- the spindle lock can be positive and / or non-positive. It is conceivable that 30 elements, such as locking or friction plates are applied to the output shaft.
- the blocking device can be designed as a separate component. However, it is also conceivable that the blocking device is integrated in an existing component or combined with this. Such a component may be a switching element, an actuating element or the like.
- the spindle lock can be done automatically. But it is also conceivable that the spindle lock is to be operated manually.
- the handheld power tool 10 can be operated both in a power-saving mode and in a boost mode.
- a lighting device 70 is arranged.
- the lighting device 70 can also be arranged on the second housing part 16.
- the lighting device 70 may be a working field Illuminate, but also projecting optical information on a workpiece and / or an environment.
- the lighting device 70 may have both a single LED, as well as a plurality of LEDs.
- the LEDs can be provided in various designs and sizes.
- the illumination device 70 can also be designed as a punctiform light source. But it is also conceivable that the lighting device 70 is designed as a projection device.
- the lighting device 70 may have lighting elements which may be arranged in different shapes on the first housing part 14 and / or on the second housing part 16.
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Description
Die Erfindung betrifft einen Winkelschleifer mit einem elektromotorischen Direktantrieb.The invention relates to an angle grinder with an electromotive direct drive.
Aus der
Ein Winkelschleifer mit einem Direktantrieb ist aus
Ein Winkelschleifer nach dem unabhängigen Anspruch 1 hat den Vorteil, besonders kompakt, leistungsfähig und zugleich ergonomisch gut handhabbar zu sein. Ein erstes Gehäuse des Winkelschleifers weist erfindungsgemäß ein erstes Gehäuseteil und ein zweites Gehäuseteil auf.An angle grinder according to
Unter dem ersten Gehäuseteil und dem zweiten Gehäuseteil sollen hier insbesondere theoretische, in der Praxis nicht existierende Konstruktionen verstanden werden. Erfindungsgemäß sind das erste Gehäuseteil und das zweite Gehäuseteil als separate Bauteileinheiten ausgeführt.The first housing part and the second housing part are to be understood here in particular as theoretical constructions that do not exist in practice. According to the invention, the first housing part and the second housing part are designed as separate component units.
Es wird vorgeschlagen, dass ein elektromotorischer Antrieb vom ersten Gehäuseteil aufgenommen wird. Das zweite Gehäuseteil ist als ein Handgriff ausgebildet. Unter dem Begriff "Handgriff" soll ein Bauteil verstanden werden, um das mindestens eine Hand eines Bedieners gelegt werden kann, um die Handwerkzeugmaschine 10 zu führen.It is proposed that an electric motor drive is received by the first housing part. The second housing part is as a handle educated. The term "handle" is intended to mean a component around which at least one hand of an operator can be placed to guide the
Erfindungsgemäß liegt ein Verhältnis eines Durchmessers des elektromotorischen Antriebs zu einem Durchmesser des zweiten Gehäuseteils zwischen 0,6 und 1,1, bevorzugt aber zwischen 0,7 und 0,8.According to the invention, a ratio of a diameter of the electromotive drive to a diameter of the second housing part is between 0.6 and 1.1, but preferably between 0.7 and 0.8.
Das Verhältnis einer Länge der Handwerkzeugmaschine zu einer Höhe des ersten Gehäuseteils sollte zwischen 1,6 und 2,8 liegen, bevorzugt aber 2,25 betragen. Dadurch wird eine besonders gute Handhabbarkeit erreicht.The ratio of a length of the power tool to a height of the first housing part should be between 1.6 and 2.8, but preferably be 2.25. As a result, a particularly good handling is achieved.
Unter der Höhe h soll hier die geometrische Abmessung des ersten Gehäuseteils in y Richtung verstanden werden. Unter der Länge I der Handwerkzeugmaschine soll die Abmessung der Handwerkzeugmaschine in x Richtung verstanden werden. Die Länge I schließt eine äußerlich sichtbare, sich an einem oberen Rand der Handwerkzeugmaschine erstreckende Länge l1 der wiederaufladbaren Batterie ein.The height h is to be understood here as the geometric dimension of the first housing part in the y direction. The length I of the portable power tool should be understood to mean the dimension of the power tool in the x direction. The length I includes an externally visible, on an upper edge of the power tool extending length l 1 of the rechargeable battery.
Es wird vorgeschlagen, mindestens eine wiederaufladbare Batterie als Energiequelle für die Handwerkzeugmaschine vorzusehen. Unter Energiequelle soll hier ein Bauteil verstanden werden, welches die elektrische Energie für den elektromotorischen Antrieb bereit stellt.It is proposed to provide at least one rechargeable battery as an energy source for the handheld power tool. The term "energy source" is understood here to mean a component which provides the electrical energy for the electromotive drive.
Durch die in den Unteransprüchen angegebenen Merkmale sind vorteilhafte Weiterbildungen der Handwerkzeugmaschine nach dem Anspruch 1 möglich.The features specified in the dependent claims advantageous developments of the power tool according to
Es wird vorgeschlagen, dass der elektromotorische Antrieb mit dem ersten Gehäuse eine erste gemeinsame Achse bildet. Vorteilhafterweise liegt die erste Achse koaxial zu einer Motorachse.It is proposed that the electromotive drive forms a first common axis with the first housing. Advantageously, the first axis is coaxial with a motor axis.
In einer vorteilhaften Ausführungsform liegt die Höhe h des ersten Gehäuses zumindest zwischen 70 mm und 90 mm, beträgt bevorzugt aber 80 mm. Die Höhe h ist hier entlang der ersten Achse definiert.In an advantageous embodiment, the height h of the first housing is at least between 70 mm and 90 mm, but is preferably 80 mm. The height h is defined here along the first axis.
Es wird vorgeschlagen, dass mindestens eine Elektronik zum Bestromen des elektromotorischen Antriebs vorgesehen ist. Vorteilhafterweise wird die Elektronik vom zweiten Gehäuse zumindest teilweise aufgenommen. Vorteilhafterweise bildet die wiederaufladbare Batterie mit dem zweiten Gehäuseteil eine zweite gemeinsame Achse, welche die wiederaufladbare Batterie durchdringt.It is proposed that at least one electronics is provided for energizing the electromotive drive. Advantageously, the electronics are at least partially received by the second housing. Advantageously, the rechargeable battery with the second housing part forms a second common axis, which penetrates the rechargeable battery.
Erfindungsgemäß liegt die Länge l der Handwerkzeugmaschine zwischen 150 mm und 200 mm, beträgt aber bevorzugt 180 mm. Die Länge I ist hierbei entlang der zweiten Achse definiert. Die Länge I der Handwerkzeugmaschine schließt dabei eine Länge l1 der wiederaufladbaren Batterie mit ein. Ohne die Länge l1 der wiederaufladbaren Batterie liegt die Länge l der Handwerkzeugmaschine bevorzugt zwischen 130 mm und 170 mm. Besonders bevorzugt beträgt die Länge I der Handwerkzeugmaschine ohne die Länge l1 der wiederaufladbaren Batterie aber 150mm.According to the invention, the length l of the portable power tool is between 150 mm and 200 mm, but is preferably 180 mm. The length I is defined along the second axis. The length I of the power tool includes a length l 1 of the rechargeable battery. Without the length l 1 of the rechargeable battery, the length l of the portable power tool is preferably between 130 mm and 170 mm. However, the length l of the handheld power tool without the length l 1 of the rechargeable battery is particularly preferably 150 mm.
Eine besonders ergonomische Handwerkzeugmaschine ergibt sich, wenn das Verhältnis der Länge I der Handwerkzeugmaschine zu einem Umfang U des zweiten Gehäuseteils zwischen 0,8 und 1,8, insbesondere zwischen 1,0 und 1,6, bevorzugt aber zwischen 1,0 und 1,3 liegt.A particularly ergonomic hand tool machine results if the ratio of the length l of the hand tool to a circumference U of the second housing part is between 0.8 and 1.8, in particular between 1.0 and 1.6, but preferably between 1.0 and 1, 3 is located.
Vorteilhafterweise liegt der Umfang U des zweiten Gehäuseteils zwischen 110 und 200 mm, insbesondere zwischen 125 und 185 mm, bevorzugt aber zwischen 150 und 175 mm. Somit ist die Handwerkzeugmaschine ergonomisch gut im Einhandbetrieb zu nutzen.Advantageously, the circumference U of the second housing part is between 110 and 200 mm, in particular between 125 and 185 mm, but preferably between 150 and 175 mm. Thus, the hand tool is ergonomically good to use in one-handed operation.
Erfindungsgemäß arbeitet der elektromotorische Antrieb als Direktantrieb. Unter einem "Direktantrieb" soll verstanden werden, dass der elektronisch kommutierte Motor mit einer Werkzeugspindel ohne Zwischenschaltung eines Getriebes verbunden ist.According to the invention, the electromotive drive operates as a direct drive. A "direct drive" is to be understood that the electronically commutated motor is connected to a tool spindle without the interposition of a transmission.
Vorteilhafterweise ist der elektromotorische Anstrieb ein elektronisch kommutierter Elektromotor. Besonders vorteilhaft ist es, wenn der elektronisch kommutierte Elektromotor ein Innenläufermotor ist. Dadurch sind hohe Drehzahlen und eine hohe Leistungsdichte erreichbar.Advantageously, the electromotive Anstrieb an electronically commutated electric motor. It is particularly advantageous if the electronic Commutated electric motor is an internal rotor motor. As a result, high speeds and high power density can be achieved.
In einer weiteren vorteilhaften Ausführungsform ist der elektronisch kommutierte Elektromotor ein Außenläufermotor. Ist der elektronisch kommutierte Elektromotor ein Außenläufermotor, ist der elektromotorische Antrieb robust ausgelegt und kann aus dem Stand heraus hohe Drehmomente liefern. Ein solcher Antrieb eignet sich demnach besonders für Anwendungen, bei denen hohe Drehmomente gefordert sind.In a further advantageous embodiment, the electronically commutated electric motor is an external rotor motor. If the electronically commutated electric motor is an external rotor motor, the electric motor drive is designed to be robust and can deliver high torques from the state out there. Such a drive is therefore particularly suitable for applications in which high torques are required.
Erfindungsgemäß ist die Drehzahl an der Werkzeugspindel größer als 12 000 min-1.According to the invention the rotational speed of the tool spindle is greater than 12 000 min -1.
Es wird vorgeschlagen, dass mindestens ein Lüfter im ersten Gehäuse angeordnet ist. Besonders vorteilhaft ist der Lüfter zwischen dem elektromotorischen Antrieb und einer Aufnahme für ein Bearbeitungswerkzeug integriert. Somit ist eine effektive Kühlung gewährleistet.It is proposed that at least one fan is arranged in the first housing. Particularly advantageously, the fan between the electric motor drive and a receptacle for a machining tool is integrated. Thus, an effective cooling is guaranteed.
Bevorzugt liegt ein Gewicht der Handwerkzeugmaschine zwischen 0,5 und 1,0 kg. Besonders bevorzugt liegt das Gewicht der Handwerkzeugmaschine zwischen 0,6 und 0,7 kg.Preferably, a weight of the portable power tool is between 0.5 and 1.0 kg. Particularly preferably, the weight of the portable power tool is between 0.6 and 0.7 kg.
In einer vorteilhaften Ausführungsform weist ein Bearbeitungswerkzeug für die Handwerkzeugmaschine einen Durchmesser d auf, der zwischen 60 und 100 mm, besonders zwischen 70 und 90 mm, bevorzugt aber zwischen 75 und 80 mm liegt.In an advantageous embodiment, a processing tool for the hand tool has a diameter d which is between 60 and 100 mm, especially between 70 and 90 mm, but preferably between 75 and 80 mm.
Besonders vorteilhaft ist ein Verhältnis des Durchmessers d des Bearbeitungswerkzeugs zum Durchmesser d1 des elektromotorischen Antriebs das zwischen 1,5 und 2,6, besonders zwischen 1,8 und 2,4, bevorzugt aber zwischen 1,9 und 2,1 liegt.Particularly advantageous is a ratio of the diameter d of the machining tool to the diameter d 1 of the electromotive drive which is between 1.5 and 2.6, especially between 1.8 and 2.4, but preferably between 1.9 and 2.1.
Vorteilhafterweise liegt eine Schnitttiefe des Bearbeitungswerkzeugs zwischen 20 und 25 mm, bevorzugt zwischen 15 und 20.Advantageously, a cutting depth of the machining tool is between 20 and 25 mm, preferably between 15 and 20.
In einer vorteilhaften Ausführungsform ist mindestens eine Beleuchtungsvorrichtung dazu vorgesehen, ein Arbeitsfeld oder dergleichen auszuleuchten. Die Beleuchtungsvorrichtung kann auch eine optische Informationen auf das Bearbeitungswerkzeug und/oder in die Umgebung projezieren. Dadurch kann einem Bediener der Handwerkzeugmaschine einfach und zuverlässig die Handwerkzeugmaschine betreffende Daten übermittelt werden.In an advantageous embodiment, at least one lighting device is provided for this, a working field or the like illuminate. The illumination device can also project optical information onto the processing tool and / or into the environment. As a result, an operator of the handheld power tool can easily and reliably transmit data concerning the handheld power tool.
Weitere Vorteile und zweckmäßige Ausführungen sind der Figurenbeschreibung und den Zeichnungen zu entnehmen.Further advantages and expedient embodiments can be taken from the description of the figures and the drawings.
In den Zeichnungen sind Ausführungsbeispiele einer erfindungsgemäßen Handwerkzeugmaschine gezeigt.In the drawings, embodiments of a hand tool according to the invention are shown.
Es zeigen:
Figur 1- die erfindungsgemäße Handwerkzeugmaschine in schematischer Darstellung,
- Figur 2
- eine Teilansicht der erfindungsgemäßen Handwerkzeugmaschine in schematischer Darstellung.
- Figur 3
- eine zweite Ausführungsform der erfindungsgemäßen Handwerkzeugmaschine in schematischer Darstellung,
- Figur 4
- eine dritte Ausführungsform der erfindungsgemäßen Handwerkzeugmaschine in schematischer Darstellung.
- FIG. 1
- the hand tool according to the invention in a schematic representation,
- FIG. 2
- a partial view of the power tool of the invention in a schematic representation.
- FIG. 3
- a second embodiment of the hand tool according to the invention in a schematic representation,
- FIG. 4
- a third embodiment of the hand tool of the invention in a schematic representation.
Für die in den unterschiedlichen Ausführungsbeispielen vorkommenden gleichen Bauteile werden dieselben Bezugszahlen verwendet.The same reference numerals are used for the same components occurring in the different embodiments.
In
Das erste Gehäuse 12 umfasst außerdem ein erstes Gehäuseteil 14 und ein zweites Gehäuseteil 16. Das erste Gehäuseteil 14 und das zweite Gehäuseteil 16 sind durch eine gedachte Trennlinie 17 getrennt. Die beiden Gehäuseteile 14, 16 sind theoretisch dargestellte Gehäuseteile, um den Aufbau der Handwerkzeugmaschine 10 zu veranschaulichen. Sie sind jedoch keine montier- und/oder demontierbaren Gehäuseteile. Die Trennlinie 17 verläuft senkrecht in y Richtung (s.
Im ersten Gehäuseteil 14 ist ein elektromotorischer Antrieb 18 angeordnet. Der elektromotorische Antrieb 18 ist bevorzugt als elektronisch kommutierter Motor 20 ausgeführt. Der elektromotorische Antrieb 18 treibt eine in
Eine geometrische Größe des elektromotorischen Antriebs 18 ist durch seinen Durchmesser d1 definiert, der im Ausführungsbeispiel ungefähr 38 mm beträgt. Der Wert berücksichtigt keine im Motorfertigungsprozeß auftretenden Fertigungstoleranzen. In der bevorzugten Ausgestaltung beträgt ein Verhältnis des Durchmessers d1 des elektromotorischen Antriebs 18 zu einem Durchmesser d2 des zweiten Gehäuseteils 16 zwischen 0,6 und 1,1. Bevorzugt liegt das Verhältnis des Durchmessers d1 des elektromotorischen Antriebs 18 zum Durchmesser d2 des zweiten Gehäuseteils 16 zwischen 0,7 und 0,8. Diese Angaben berücksichtigen keine Abweichungen, die durch Fertigungstoleranzen auftreten können.A geometric size of the electromotive drive 18 is defined by its diameter d 1 , which in the exemplary embodiment is approximately 38 mm. The value does not take into account in the engine manufacturing process Manufacturing tolerances. In the preferred embodiment, a ratio of the diameter d 1 of the electromotive drive 18 to a diameter d 2 of the
In
Wie in
Eine geometrische Erstreckung der Handwerkzeugmaschine 10 wird durch eine Länge I definiert. Die Länge I ist hierbei die geometrische Abmessung der Handwerkzeugmaschine 10 in x Richtung. Die Länge I ist hier einschließlich einer äußerlich sichtbaren geometrischen Abmessung l1 der wiederaufladbaren Batterie 26 definiert. Die Länge l1 der wiederaufladbaren Batterie 26 erstreckt sich hierbei an einem oberen Rand 21 der Handwerkzeugmaschine 10.A geometric extent of the
Wie in
Der elektromotorische Antrieb 18 bildet mit dem ersten Gehäuseteil 14 eine erste gemeinsame Achse 28. Die erste gemeinsame Achse 28 liegt koaxial zu einer Motorwelle 30 des eletromotorischen Antriebs 18. Die Motorwelle 30 setzt sich im Ausführungsbeispiel in der Werkzeugspindel 22 fort.The electromotive drive 18 forms with the first housing part 14 a first
Die Höhe h des ersten Gehäuseteils liegt entlang der ersten Achse 28 mindestens zwischen 70 mm und 100 mm. Bevorzugt beträgt die Höhe h 80 mm. Diese Angaben beinhalten nicht mögliche, jedoch zu berücksichtigende Abweichungen, die durch Fertigungstoleranzen bedingt sein können.The height h of the first housing part is along the
Eine Elektronik 32 ist dazu vorgesehen, den elektromotorischen Antrieb 18 zu bestromen. Im Ausführungsbeispiel ist die Elektronik 32 im zweiten Gehäuseteil angeordnet. Es ist aber auch denkbar, die Elektronik 32 beispielsweise in den elektromotorischen Antrieb 18 zu integrieren oder separat auszuführen.An
Weiterhin ist die Elektronik dazu vorgesehen, den elektromotorischen Antrieb 18 der Handwerkzeugmaschine 10 in Abhängigkeit eines die Handwerkzeugmaschine 10 betreffenden Parameters zu steuern und/oder zu regeln.Furthermore, the electronics are provided for controlling and / or regulating the electromotive drive 18 of the
Zusammen mit dem zweiten Gehäuseteil 16 bildet die wiederaufladbare Batterie 26 eine zweite gemeinsame Achse 34. Die zweite Achse durchdringt dabei die wiederaufladbare Batterie 26 und erstreckt sich vorteilhafterweise entlang des zweiten Gehäuseteils 16 in einer axialen Richtung des zweiten Gehäuseteils 16. Die Länge I der Handwerkzeugmaschine 10 ist entlang der zweiten Achse 34 definiert.The second axis penetrates the
Die beiden Achsen 28, 34 stehen in einem Winkel a zueinander, der zwischen 60° und 120°, besonders zwischen 80° und 100 ° liegt, bevorzugt aber ungefähr 90° beträgt. Die Winkelangabe berücksichtigt keine Fertigungstoleranzen.The two
Die Länge I der Handwerkzeugmaschine 10 entlang der zweiten Achse 34 liegt mindestens zwischen 150 mm und 200 mm. Bevorzugt beträgt die Länge l 180 mm. Die Länge l der Handwerkzeugmaschine 10 schließt eine Länge l1 der wiederaufladbaren Batterie 26 mit ein. Diese Angabe lässt mögliche Fertigungstoleranzen unberücksichtigt. Ohne die Länge l1 der wiederaufladbaren Batterie 26 liegt die Länge I der Handwerkzuegmaschine 10 zwischen 130 mm und 170 mm, beträgt bevorzugt aber 150mm.The length I of the
Eine weitere ergonomisch gute Auslegung der Handwerkzeugmaschine 10 wird dadurch erreicht, dass das Verhältnis der Länge l des zweiten Gehäuseteils 16 zum Umfang U des zweiten Gehäuseteils 16 optimal ausgelegt ist. Das optimale Verhältnis der Länge l des zweiten Gehäuseteils 16 zum Umfang U des zweiten Gehäuseteils 16 sollte zumindest zwischen 0,8 und 1,8, besondere zwischen 1,0 und 1,6 liegt, bevorzugt aber zwischen 1,0 und 1,3 liegen. Der Umfang U des zweiten Gehäuseteils 16 definiert hierbei den Griffumfang des Handgriffs 24. Diese Angaben berücksichtigen keine Abweichungen, die durch Fertigungstoleranzen auftreten können.Another ergonomically good design of the
Eine besonders ergonomische Ausgestaltung der Handwerkzeugmaschine 10 wird durch einen optimalen Umfang U des zweiten Gehäuseteils 16 erreicht. In der erfindungsgemäßen Ausführung liegt der Griffumfang des Handgriffs 24 zwischen 110 bis 200 mm, besonders zwischen 125 bis 185 mm, bevorzugt aber zwischen 150 und 175 mm. Liegt der Griffumfang des Handgriffs 24 innerhalb dieses Wertebereichs kann die Handwerkzeugmaschine 10 in jeder Arbeitsposition eines Bedieners mit einer Hand geführt werden. Diese Angaben berücksichtigen keine Abweichungen, die durch Fertigungstoleranzen auftreten können.A particularly ergonomic embodiment of the
Der elektronisch kommutierte Elektromotor 20 treibt die Werkzeugspindel 22 direkt an. Unter "direkt" soll verstanden werden, dass der elektronisch kommutierte Elektromotor 20 mit der Werkzeugspindel 22 ohne Zwischenschaltung eines konventionellen Getriebes verbunden ist.The electronically commutated electric motor 20 drives the
Wie in
Eine weitere erfindungsgemäße Ausführungsform der Handwerkzeugmaschine 10 ist in
Im Ausführungsbeispiel beträgt die Drehzahl an der Werkzeugspindel mindestens 12 000 min-1. Die Drehzahl kann bis 20 000 min-1 erhöht werden.In the exemplary embodiment, the speed at the tool spindle is at least 12 000 min -1 . The speed can be increased up to 20 000 min -1 .
Da bei Handwerkzeugmaschinen 10 mit elektronisch kommutierten Elektromotoren 20 die Elektronik 32 leistungsfähiger und von Größe und Volumen größer ausgelegt ist als bei Bürstenmotoren, spielt die Kühlung eine immer wichtigere Rolle und hat die Notwendigkeit einer optimalen Kühlung zur Folge. Die Kühlung kann passiv oder aktiv ausgeführt sein. Bei der passiven Kühlung erfolgt der Abtransport der thermischen Energie durch Konvektion. Bei aktiver Kühlung wird die thermische Energie der zu kühlenden Komponente mit Hilfe eines Kühlsystems abtransportiert.Since
Im Ausführungsbeispiel ist das Kühlsystem ein Lüfter 46. Der Lüfter 46 ist im ersten Gehäuseteil 14 integriert. Besonders vorteilhaft ist es, wenn der Lüfter 46 zwischen dem elektromotorischen Antrieb 18 und einer Aufnahme für ein Bearbeitungswerkzeug 48 integriert ist. Es ist aber auch denkbar, dass andere Kühlsysteme wie Peltierelemente, geschlossene Kühlkreisläufe oder dergleichen zum Einsatz kommen.In the exemplary embodiment, the cooling system is a
Genauso gut ist es denkbar, auf den Lüfter zu verzichten und die Kühlung zum Beispiel über intelligent angeordnete Kühlrippen und/oder Kühlkörper zu realisieren.It is just as possible to dispense with the fan and to realize the cooling, for example, via intelligently arranged cooling ribs and / or heat sinks.
Ein weiterer Vorteil der erfindungsgemäßen Handwerkzeugmaschine 10 ist das vergleichsweise geringe Gewicht der Handwerkzeugmaschine 10 gegenüber den Gewichten von Handwerkzeugmaschinen dieser Art. Das Gewicht der Handwerkzeugmaschine 10 liegt zwischen 0,5 und 1,0 kg. Bevorzugt liegt das Gewicht der Handwerkzeugmaschine 10 zwischen 0,6 und 0,7 kg. Das Gewicht schließt ein Gewicht der wiederaufladbaren Batterie 26 und ein Gewicht des Bearbeitungswerkzeugs 48 mit ein.Another advantage of the
Ein weiterer Vorteil der erfindungsgemäßen Handwerkzeugmaschine 10 liegt in einer geringen Baugröße des Bearbeitungswerkzeugs 48. Das Bearbeitungswerkzeug 48 der Handwerkzeugmaschine 10 ist beispielsweise eine Schleif-, Trenn- oder Schruppscheibe. Das Bearbeitungswerkzeug 48 weist einen Durchmesser d auf, der zwischen 60 und 100 mm, besonders aber zwischen 70 und 90 mm liegt. Bevorzugt liegt der Durchmesser d des Bearbeitungswerkzeugs zwischen 75 und 80 mm. Diese Angaben berücksichtigen keine Abweichungen, die durch Fertigungstoleranzen auftreten können. Durch diese kompakte Ausgestaltung des Bearbeitungswerkzeuges 48 können hohe Umlaufgeschwindigkeiten des Bearbeitungswerkzeuges 48 erzielt werden. Beträgt die Drehzahl an der Werkzeugspindel beispielsweise 20 000 min-1, läuft ein Bearbeitungswerkzeug 48 mit einem Durchmesser d von 80 mm mit einer Geschwindigkeit von ca. 80m/s um.Another advantage of the
Ein weiteres Maß für die Kompaktheit des Bearbeitungswerkzeuges und die Leistungsfähigkeit des elektromotorischen Antriebs 18 ist ein Verhältnis des Durchmessers d des Bearbeitungswerkzeugs 48 zum Durchmesser d1 des elektromotorischen Antriebs 18. In der bevorzugten Ausgestaltung beträgt das Verhältnis des Durchmessers d des Bearbeitungswerkzeugs 48 zum Durchmesser d1 des elektromotorischen Antriebs 18 zwischen 1,5 und 2,6, besonders aber zwischen 1,8 und 2,4. Bevorzugt liegt das Verhältnis des Durchmessers d des Bearbeitungswerkzeugs 48 zum Durchmesser d1 des elektromotorischen Antriebs 18 zwischen 1,9 und 2,1. Diese Angaben berücksichtigen keine Abweichungen, die durch Fertigungstoleranzen auftreten können.Another measure of the compactness of the machining tool and the performance of the electromotive drive 18 is a ratio of the diameter d of the
Durch die erfindungsgemäße Ausgestaltung der Handwerkzeugmaschine 10, des elektromotorischen Antriebs 18 und des Bearbeitungswerkzeugs 48, wird eine Schnitttiefe des Bearbeitungswerkzeugs 48 erreicht, die zwischen 20 und 25mm, bevorzugt aber zwischen 15 und 20 mm liegt.Due to the inventive design of the
Des Weiteren deckt eine Schutzhaube 49 einen Umfangbereich des Bearbeitungswerkzeugs 48 in radialer Richtung und einen sich radial erstreckenden Stirnbereich 50 der Handwerkzeugmaschine 10 axial ab.Furthermore, a
Im Ausführungsbeispiel ist die Handwerkzeugmaschine 10 als batteriebetriebene Handwerkzeugmaschine 10 ausgebildet. Wie in
Die Batteriespannung liegt in einem Bereich zwischen 3,6 und 36 V , besonders zwischen 7,2 und 14,4 V, beträgt bevorzugt aber 10,8V. Die Werte der Batteriespannung berücksichtigen nicht mögliche Batteriespannungsschwankungen.In the exemplary embodiment, the
The battery voltage is in a range between 3.6 and 36 V, especially between 7.2 and 14.4 V, but is preferably 10.8V. The values of the battery voltage do not take into account possible battery voltage fluctuations.
Die wiederaufladbare Batterie 26 besteht insbesondere aus Lithium Ionen Batteriezellen. Die wiederaufladbare Batterie 26 umfasst dabei eine oder mehrere Reihen von Batteriezellen, die wiederum parallel zueinander geschaltet sind. Jede einzelne Zelle weist eine Länge von ungefähr 65 mm und einen Durchmesser von ungefähr 18 mm auf. Es ist aber auch denkbar, dass eine Zelle eine Länge von 65 bis 70 mm und einen Durchmesser von 14 mm bis ungefähr 20 mm aufweist. Lithium Ionen Akkus zeichnen sich durch eine hohe Energiedichte und eine thermische Stabilität auch bei hohen Belastungen aus, was eine hohe Leistung bedeutet. Ein weiterer großer Vorteil ist die geringe Selbstentladung, die bewirkt, dass auch die Akkus auch bei längeren Standzeiten einsatzbereit sind. Aus diesen Vorteilen ergeben sich die Vorteile der erfindungsgemäßen Anwendung, insbesondere dass die batteriebetriebene Oberfräse 10 in ihren Abmessungen einerseits klein und kompakt werden kann und andererseits hohe Leistungen bringt.The
Es ist aber auch denkbar, dass die wiederaufladbare Batterie 26 aus Lithium-Luft-Zellen, aus Lithium-Schwefel-Zellen, Lithium-Polymer-Zellen oder dergleichen besteht. Des Weiteren kann die wiederaufladbare Batterie 26 in einer anderen als der gezeigten geometrischen Ausführung realisiert sein, wie zum Beispiel einer eckigen Ausführung.However, it is also conceivable that the
Eine Batteriespannungsanzeige 54 ist in der zweiten Gehäusehalbschale 15 integriert. Die Batteriespannungsanzeige 54 ist dazu vorgesehen, eine Höhe der Batteriespannung optisch anzuzeigen. Dies kann mit Hilfe von farblichen LED, aufblinkenden LED, digitalen Anzeigeelementen, LCD und dergleichen geschehen.A
Des Weiteren kann eine Sensorvorrichtung im zweiten Gehäuseteil 16 angeordnet sein, die ein beschädigtes und/oder falsch montiertes Bearbeitungswerkzeug und/oder das Verklemmen des Bearbeitungswerkzeugs und/oder das Bersten des Bearbeitungswerkzeugs 48 im Betrieb der Handwerkzeugmaschine 10 detektiert.Furthermore, a sensor device may be arranged in the
Weiterhin ist es möglich, durch Betätigung eines Schaltelements eine Blockiervorrichtung zu aktivieren, um die Werkzeugspindel 22 zu arretieren. Die Blockiervorrichtung kann als Schieber, Stift oder Hebel ausgeführt sein. Die Spindelarretierung kann form- und /oder kraftschlüssig erfolgen. Dabei ist es denkbar, dass auf der Abtriebswelle 30 Elemente, wie beispielsweise Rast- oder Reibscheiben aufgebracht sind. Die Blockiervorrichtung kann als separates Bauteil ausgeführt sein. Es ist aber auch denkbar, dass die Blockiervorrichtung in ein bestehendes Bauteil integriert ist oder mit diesem kombiniert ist. Ein solches Bauteil kann ein Schaltelement, ein Stellelement oder dergleichen sein. Die Spindelarretierung kann automatisch erfolgen. Es ist aber auch vorstellbar, dass die Spindelarretierung manuell zu betätigen ist.Furthermore, it is possible to activate a blocking device by actuating a switching element in order to lock the
Im einem Ausführungsbeispiel ist die Handwerkzeugmaschine 10 sowohl in einem Energiesparmodus, als auch in einem Boostmodus betreibbar.In one exemplary embodiment, the
In einem Ausführungsbeispiel in
Die Beleuchtungsvorrichtung 70 kann als eine optische Anzeigevorrichtung ausgeführt sein. Die optische Anzeigevorrichtung kann dazu vorgesehen sein, dem Bediener derHandwerkzeugmaschine 10 eine die Parameter der Handwerkzeugmaschine 10 betreffende Anzeige bereitzustellen. Die zur Handwerkzeugmaschine 10 zugehörigen Parameter sind mindestens folgende:
- Ein Ladestand der wiederaufladbaren Batterie 26
- Ein
Überlastzustand der Handwerkzeugmaschine 10, insbesondere des elektromotorischen Antriebs 18,der Elektronik 32 und/oder der wiederaufladbaren Batterie 26 - Eine Drehzahl des elektromotorischen Antriebs 18
- Ein Strom, eine Spannung und/oder eine Temperatur des elektromotorischen Antriebs 18
- Eine Temperatur des elektromotorischen Antriebs 18 und/oder der
Elektronik 32
- A charge level of the
rechargeable battery 26 - An overload condition of the
hand tool 10, in particular the electromotive drive 18, theelectronics 32 and / or the rechargeable battery 26th - A rotational speed of the electromotive drive 18th
- A current, a voltage and / or a temperature of the electromotive drive 18
- A temperature of the electromotive drive 18 and / or the
electronics 32
Die Anzeige der Parameter der Handwerkzeugmaschine 10 kann beispielsweise durch folgende Anzeigemöglichkeiten realisiert werden:
- Eine Änderung der Lichtfarbe
- Eine Änderung der Lichtintensität
- Lichtpulse unterschiedlicher Länge
- Lichtpulse unterschiedlicher Helligkeit
- Lauflicht mit Änderung der Laufrichtung des Lichts
- Lichtpulse, variierend in Pulsfrequenz und/oder Helligkeit
- A change in the light color
- A change in light intensity
- Light pulses of different lengths
- Light pulses of different brightness
- Running light with change of the direction of the light
- Light pulses, varying in pulse rate and / or brightness
Des Weiteren sind weitere dem Fachmann als sinnvoll erscheinende Anzeigen der Parameter der Handwerkzeugmaschine 10 möglich.Furthermore, further displays of the parameters of the
Claims (12)
- Angle grinder having at least one electromotive drive (18) acting on an output shaft (30), in particular an electronically commutated motor (20), which is intended to directly drive a tool spindle (22), having at least one first housing (12) that consists of at least one first housing half shell (13) and comprises at least one first housing part (14), which accommodates the electromotive drive (18), and a second housing part (16), which serves as a handle (24), and having a rechargeable battery (26) serving as energy source, characterized in that a ratio of the outside diameter d1 of the electromotive drive (18) to the outside diameter d2 of the second housing part (16) is between 0.6 and 1.1, but preferably between 0.7 and 0.8, wherein the height h of the first housing part (14) along the first axis (28) is between 70 mm and 100 mm, wherein the length 1 of the angle grinder (10) along the second axis (34) is between 150 mm and 200 mm, wherein the first housing part and the second housing part are embodied as separate component units, wherein a rotational speed n at the tool spindle is greater than 12 000 min-1, but in particular less than or equal to 20 000 min-1.
- Angle grinder according to Claim 1, characterized in that the electromotive drive (18) forms with the first housing part (14) a first common axis (28), which is coaxial with the output shaft (30).
- Angle grinder according to either of the preceding claims, characterized in that at least one electronic system (32) for supplying power to the electromotive drive (18) is at least partially accommodated by the second housing part (16).
- Angle grinder according to one of the preceding claims, characterized in that the rechargeable battery (26) forms together with the second housing part (16) a second common axis (34).
- Angle grinder according to one of the preceding claims, characterized in that a ratio of the length 1 of the angle grinder (10) to a circumference U of the second housing part (14) is between 0.8 and 1.8, in particular between 1.0 and 1.6, but preferably between 1.0 and 1.3.
- Angle grinder according to one of the preceding claims, characterized in that the circumference U of the second housing part (16) is between 110 and 200 mm, in particular between 125 and 185 mm, but preferably between 150 and 175 mm, in order to allow the angle grinder (10) to be actuable in one-handed operation in any working position.
- Angle grinder according to one of the preceding claims, characterized in that the electronically commutated electric motor (20) is an internal rotor motor.
- Angle grinder according to one of the preceding claims, characterized in that at least one fan (46) is integrated in the first housing (14), in particular between the electromotive drive (18) and a receptacle of a machining tool (48).
- Angle grinder according to one of the preceding claims, characterized in that a weight of the angle grinder (10) is between 0.5 and 1.0 kg, but preferably between 0.6 and 0.7 kg.
- System comprising an angle grinder according to one of the preceding claims and a machining tool (48), wherein a ratio of the diameter d of the machining tool (48) to the diameter d1 of the electromotive drive (18) is between 1.5 and 2.6, particularly between 1.8 and 2.4, but preferably between 1.9 and 2.1.
- System according to Claim 10, characterized in that the machining tool (48) has a diameter d of between 60 and 101 mm, particularly between 70 and 90 mm, but preferably between 75 and 80 mm.
- System according to either of Claims 10 and 11, characterized in that a depth of cut of the machining tool (48) is between 20 and 25 mm, preferably between 15 and 20 mm.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17195361.5A EP3296065B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
PL14734767T PL3030383T3 (en) | 2013-08-09 | 2014-06-23 | Angle grinder having an electromotive direct drive |
PL20159673T PL3689553T3 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive |
EP20159673.1A EP3689553B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive |
EP21189051.2A EP3936284B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
PL17195361T PL3296065T3 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102013215821.1A DE102013215821A1 (en) | 2013-08-09 | 2013-08-09 | Hand tool with an electric motor drive as a direct drive |
PCT/EP2014/063099 WO2015018557A1 (en) | 2013-08-09 | 2014-06-23 | Portable power tool having an electromotive direct drive |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
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EP20159673.1A Division EP3689553B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive |
EP17195361.5A Division EP3296065B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
EP17195361.5A Division-Into EP3296065B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
EP21189051.2A Division EP3936284B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
Publications (2)
Publication Number | Publication Date |
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EP3030383A1 EP3030383A1 (en) | 2016-06-15 |
EP3030383B1 true EP3030383B1 (en) | 2019-09-04 |
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Application Number | Title | Priority Date | Filing Date |
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EP20159673.1A Active EP3689553B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive |
EP17195361.5A Active EP3296065B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
EP14734767.8A Active EP3030383B1 (en) | 2013-08-09 | 2014-06-23 | Angle grinder having an electromotive direct drive |
EP21189051.2A Active EP3936284B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20159673.1A Active EP3689553B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive |
EP17195361.5A Active EP3296065B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP21189051.2A Active EP3936284B1 (en) | 2013-08-09 | 2014-06-23 | Handheld machine tool with an electro-motor drive as direct drive |
Country Status (7)
Country | Link |
---|---|
US (3) | US10730175B2 (en) |
EP (4) | EP3689553B1 (en) |
CN (2) | CN114211367A (en) |
DE (1) | DE102013215821A1 (en) |
ES (3) | ES2792039T3 (en) |
PL (3) | PL3030383T3 (en) |
WO (1) | WO2015018557A1 (en) |
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- 2014-06-23 PL PL14734767T patent/PL3030383T3/en unknown
- 2014-06-23 EP EP17195361.5A patent/EP3296065B1/en active Active
- 2014-06-23 CN CN202111597750.8A patent/CN114211367A/en active Pending
- 2014-06-23 US US14/911,218 patent/US10730175B2/en active Active
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- 2014-06-23 ES ES17195361T patent/ES2792039T3/en active Active
- 2014-06-23 ES ES14734767T patent/ES2760025T3/en active Active
- 2014-06-23 EP EP14734767.8A patent/EP3030383B1/en active Active
- 2014-06-23 CN CN201480044949.XA patent/CN105451947A/en active Pending
- 2014-06-23 WO PCT/EP2014/063099 patent/WO2015018557A1/en active Application Filing
- 2014-06-23 PL PL20159673T patent/PL3689553T3/en unknown
- 2014-06-23 EP EP21189051.2A patent/EP3936284B1/en active Active
- 2014-06-23 ES ES20159673T patent/ES2899436T3/en active Active
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2020
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Also Published As
Publication number | Publication date |
---|---|
EP3030383A1 (en) | 2016-06-15 |
US20230067184A1 (en) | 2023-03-02 |
US10730175B2 (en) | 2020-08-04 |
EP3296065B1 (en) | 2020-03-25 |
ES2792039T3 (en) | 2020-11-06 |
US20200246959A1 (en) | 2020-08-06 |
US11518019B2 (en) | 2022-12-06 |
CN105451947A (en) | 2016-03-30 |
DE102013215821A1 (en) | 2015-02-12 |
US20160199958A1 (en) | 2016-07-14 |
PL3030383T3 (en) | 2020-03-31 |
US11938611B2 (en) | 2024-03-26 |
EP3936284A1 (en) | 2022-01-12 |
WO2015018557A1 (en) | 2015-02-12 |
EP3936284B1 (en) | 2024-08-07 |
EP3296065A1 (en) | 2018-03-21 |
ES2899436T3 (en) | 2022-03-11 |
PL3689553T3 (en) | 2021-12-13 |
PL3296065T3 (en) | 2020-09-21 |
EP3689553B1 (en) | 2021-09-01 |
EP3689553A1 (en) | 2020-08-05 |
CN114211367A (en) | 2022-03-22 |
ES2760025T3 (en) | 2020-05-12 |
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