EP2374578A2 - Handheld machine tool with cables running in a housing - Google Patents
Handheld machine tool with cables running in a housing Download PDFInfo
- Publication number
- EP2374578A2 EP2374578A2 EP11171511A EP11171511A EP2374578A2 EP 2374578 A2 EP2374578 A2 EP 2374578A2 EP 11171511 A EP11171511 A EP 11171511A EP 11171511 A EP11171511 A EP 11171511A EP 2374578 A2 EP2374578 A2 EP 2374578A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- housing
- hand tool
- tool according
- carrier
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
Definitions
- the present invention is based on a hand tool according to the preamble of claim 1.
- the known cable carrier is in no way attributable to electrical functions of the power tool, in particular not suitable for safe detection and control of sudden speed drop in the case of kick-back.
- a hedge trimmer known in which a handle is placed on a pot bottom-shaped housing end. In the bottom of the housing end a bore is provided through which cables are routed. A cable carrier is not provided so that the insulation of the cables can rub through at the edge of the hole.
- the hand tool according to the invention with the features of claim 1 can be equipped with a modification of Tachointestin, sensor and electronic control assembly and thus safer against kick-back cases, because in this case, respectively, the power tool shuts off early or is back-regulated, that the rotating tool is stopped at lightning speed and the risk or damage to the operator are excluded.
- the power tool shuts off early or is back-regulated, that the rotating tool is stopped at lightning speed and the risk or damage to the operator are excluded.
- motor cable especially sensor cable, unimpaired by the rotational movement of the handle and gently supported, so that the cables can not be clamped between the mutually twisting areas of the housing and damaged in this way ,
- the position-secure sensor assembly is connected with gentle cable management.
- the cable carrier is designed like a miniature table consisting of a table top with legs, wherein the table top is positioned transversely to the housing axis and serves as a support member for the cable, it is robust and easy to install.
- the table-plate-like area as a guide hole has a central hole through which the cables occur and thus centered near the axis of the rotary joint of the power tool, a low mechanical stress of the cable is easily secured when turning the handle, because while their Verfitwege are almost zero.
- the guide opening of the cable carrier is designed as a ring nozzle with radially inwardly arranged round ring profile, over which the cable is guided with low friction, sharp kinks and high bending stress of the cable are reliably avoidable.
- the cable carrier in the housing is simple, accurate and quick to install. Characterized in that the table-top-like area carries further openings which serve to accommodate functional parts, in particular electrical components with their connecting wires, such as resistors, capacitors or the like.,
- the cable carrier can be used in a particularly versatile.
- the cable carrier contains support means which bundles the cables without defining them axially or radially, the cables are arranged particularly wear-resistant.
- the cable carrier has fixing means to which a cable can be clamped, the possible applications of the cable carrier are extended.
- the cable carrier consists of, in particular elastic, plastic, it is particularly light and has an electrically insulating effect.
- the cable carrier carries a sensor, it is by attaching to a defined position of the housing of a neighboring, in particular sitting on the rotor axis tachometer disc particularly accurately assignable.
- the cable carrier has further decentralized recesses and niches for cable passage, it can be equipped with a wide variety of electronic components and can be used in a variety of ways.
- the senor is an inductive resistor, in conjunction with the control electronics, a constant target-actual adjustment of the engine speed is possible.
- FIG. 1 This consists of an approximately centrally disposed motor housing 12, a from there in the viewing direction to the right ie axially forwardly extending gear housing 14 and a from there to the left, ie to the rear, extending housing 20.
- the housing 12 is tubular segment-like manufactured in pot construction, wherein between the motor housing 12 and the handle 20, a rotary joint 26 is arranged around which the handle 20 for changing working positions relative to the motor-12 and the gear housing 14 is rotatable. From the gear housing 14 emerges at right angles an output shaft 16, at the free end of a grinding wheel 18 is tensioned.
- the handle 20 carries a switch button 22 with which the motor 28 can be placed in or out of service, with an electric cable 24 exiting to the rear for operation of the angle grinder.
- FIG. 2 shows a partial longitudinal section of the motor housing 12 with the motor housing side radially outer contour of the rotary joint 26, with the rotor 30 of the motor 28, its rotor axis 32, its rotor winding 34 and its commutator 36th
- roller bearing 38 In the direction of looking right on the commutator 36 follow on the rotor axis 32, a roller bearing 38 and a speedometer disk 42.
- the roller bearing 38 is housing side mounted in a bearing seat 40, which is positioned as passroye recess in a transverse rib system 60 of the motor housing 12.
- the approximately cross-shaped transverse rib system 60 forms a perforated transverse wall at the handle end of the tubular motor housing 12.
- Die Tacho disk 42 can rotate freely in a following on the bearing seat 40 blind hole 39 of the transverse rib system 60.
- a centric table-shaped cable carrier 46 is arranged, which centered the cables 41 loosely bundled in a central guide opening 52 of its rectangular, tabletop-like support member 47.
- the cables 41 are thus guided inside the housing 12 with a certain amount of play thereby exposed to less friction than without such a cable carrier 46.
- the cable carrier 46 is designed as a clip, projects from each of the four outer corners of a parallel foot at right angles, wherein each foot is designed as an elastic leg 48, which has at its free ends depending on a clip hook 50, with which he can latch on suitably designed holding edges 59 of the transverse rib system 60 latching and thus positively secured against loss.
- the legs 48 each first pass through an axial recess 58 in the approximately cross-shaped transverse rib system 60, so that the clip hooks 50 reach the holding edges 59 assigned to them and can hold themselves coupled in a positively locking manner.
- Two of the legs 48 of the cable carrier 46 are interconnected by a transverse strut 49 stiffening each other.
- the two opposite legs 48 are interconnected by a thicker plate-like region which serves as a sensor carrier 56.
- a sensor 45 is embedded, which is held by means of the cable carrier 46 to the speedometer disk 42 in a defined distance / air gap on the motor housing 12 so that its function is safely ensured.
- the sensor 45 outputs speed-proportional voltage pulses to an unillustrated control electronics. If the engine speed reaches a limit within a high load range, the control electronics triggers a signal to reduce the motor voltage or to switch off the motor.
- the sensor is encapsulated here in the cable guide.
- the cable carrier has 46 more wells, holes and slots for the secure arrangement of other electronic parts or for guiding and clamping cables.
- FIG. 3 shown rotor 30 with its commutator 36, the roller bearing 38 and the speedometer disk 42 is shown in its assignment to the cable carrier 46 without housing 11, wherein the working position of the sensor carrier 56 with the sensor 45 to the speedometer disk 42 and the course of the cable 41 can be seen.
- FIG. 4 shown top view of the transverse rib system 60 of the motor housing 18 in the region of the rotary joint 26 to the rotatable handle 20 can be particularly clearly see the attachment of the cable carrier 46 with its upper legs 48 on the retaining edge 59 of an upper transverse rib, wherein the attachment of the lower leg 48 of the cable carrier 46th on the housing 18 is solved in principle in the same way.
- the cables 41 are guided forwardly by the sensor carrier 56 through external, lateral apertures or recesses 58 of the cable carrier 46 and then guided again through the central recess 58 behind the annular nozzle 51 and then through the guide opening 52 of the Ring stub 51 emerge still centered front and lead to the handle 20.
- the inside circular ring-like design of the annular nozzle 51 is clearly visible and also the associated large-scale leadership of the cable 41st
- FIG. 5 shown enlarged section of the housing 18 in the region of the transverse rib system 60 according to FIG. 4 shows one of the legs 48 of the cable carrier 46 before the engagement of his Klipshakens 50 behind the retaining edge 59 of the ribs and into the passage opening 61 of the transverse rib system 60th
- FIG. 6 shown section of the housing 18 is approximately the rear view of FIG. 5 in the region of the transverse rib system 60, which forms a circular disc 66 in the center.
- the two upper legs 48 of the cable carrier 46 pass through the upper access opening 61 and engage behind with its clip hooks 50, the horizontal retaining edge 59 of the transverse ribs of the transverse rib system 60.
- the circular disk 66 in the middle of the transverse rib system carries a blind hole 39 for the speedometer disk 42 and the It is clear that the configuration of the housing 12 in the area of the circular disk 66 of the transverse rib system 60 with respect to the interaction with the cable carrier 46 is crucial for the safe, accurate function of speedometer disc 42 and sensor 45 and that the Cable carrier 46 is of central importance.
- FIG. 7 spatially illustrated tachometer disc 42 shows its central, annular brass bushing 43, which carries on its outer edge a magnetized encapsulation 44 which is connected to the mounting position of the handheld power tool 10 adjacent sensor 45 (FIG. Fig. 2, 3rd ) cooperates.
- FIG. 8 spatially illustrated rotor 30 is similar to FIG. 3 the commutator 36, the arrangement of the rolling bearing 38 and the speedometer disk 42 and beyond serving for engine cooling fan 64th
- FIGS. 9a ) to d) shown views of the cable carrier 46 clearly show its table-like configuration with the tabletop-like support member 47 with central guide opening 52 and annular nozzle 51, the slots 53, the upper recess 54 for receiving further electronic parts and the lower recesses 58 for the passage of the cable 41, the table-leg-like, elastic legs 48 with the end-side clip hooks 50, and the plate-like thickened, serving as a sensor carrier 56 area at the bottom Leg pair 38, so that the design, operation and use of the invention will become apparent.
- the dimensions of the recesses and slots located on the cable carrier are matched to the usual cable diameter, so that they can be used either as cable guides or as Jardinklemmung. When used as a cable guide there is a loose connection with clearance between the cable and recess while when used as a cable clamp the cable is anchored positively in the slot.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Machine Tool Units (AREA)
- Harvester Elements (AREA)
Abstract
Description
Die vorliegende Erfindung geht aus von einer Handwerkzeugmaschine nach dem Oberbegriff des Anspruchs 1.The present invention is based on a hand tool according to the preamble of claim 1.
Aus der
Der bekannte Kabelträger ist in keiner Weise elektrischen Funktionen der Handwerkzeugmaschine zuordenbar, insbesondere nicht zur sicheren Erfassung und Beherrschung plötzlichen Drehzahlabfalls im Fall von Kick-back geeignet.The known cable carrier is in no way attributable to electrical functions of the power tool, in particular not suitable for safe detection and control of sudden speed drop in the case of kick-back.
Aus der
Aus der
Aus der
Aus der
Die erfindungsgemäße Handwerkzeugmaschine mit den Merkmalen des Anspruchs 1 ist mit geringem Änderungsaufwand mit einer aus Tachoscheibe, Sensor und Elektronischer Regelung bestehenden Baugruppe ausrüstbar und damit sicherer gegen Kick-back-Fälle, weil in diesem Fall jeweils die Handwerkzeugmaschine so frühzeitig abschaltet bzw. zurückgeregelt wird, dass damit das drehende Werkzeug blitzschnell gestoppt wird und die Gefahr bzw. Schäden für den Bedienenden ausgeschlossen sind. Zugleich sind die im Gehäuseinneren insbesondere zwischen Motorgehäuse und drehbarem Handgriff geführten Kabel, insbesondere Motorkabel, vorzugsweise Sensorkabel, von der Drehbewegung des Handgriffs unbeeinträchtigt und schonend gehaltert, so dass die Kabel nicht zwischen den gegeneinander verdrehenden Bereichen des Gehäuses verklemmt und auf diese Weise beschädigt werden können.The hand tool according to the invention with the features of claim 1 can be equipped with a modification of Tachoscheibe, sensor and electronic control assembly and thus safer against kick-back cases, because in this case, respectively, the power tool shuts off early or is back-regulated, that the rotating tool is stopped at lightning speed and the risk or damage to the operator are excluded. At the same time guided inside the housing in particular between the motor housing and rotatable handle cables, especially motor cable, preferably sensor cable, unimpaired by the rotational movement of the handle and gently supported, so that the cables can not be clamped between the mutually twisting areas of the housing and damaged in this way ,
Dadurch, dass im Gehäuse quer zur Längsachse ein rahmenartiger Kabelträger angeordnet ist, insbesondere axial im Gehäuse überrastbar gespannt, der das Kabel in einer definierten Position hält, insbesondere in der Mitte des Gehäuses radial nach innen, ist die lagesichere Sensoranordnung mit schonender Kabelführung verbunden.Characterized in that a frame-like cable carrier is arranged transversely to the longitudinal axis in the housing, in particular axially latched in the housing, which holds the cable in a defined position, in particular in the middle of the housing radially inward, the position-secure sensor assembly is connected with gentle cable management.
Dadurch, dass das Kabel lose, insbesondere mittig im Gehäuse nahe einer Ideallinie axial beweglich getragen wird, ist dessen Verklemmungsgefahr gering. Neben der Gefahr des Verklemmens wird auch die des Abschwingens, des Abreibens und Abdrehens der Kabel reduziert.Due to the fact that the cable is carried loosely, in particular centrally in the housing, so as to be axially movable near an ideal line, its danger of jamming is low. In addition to the risk of jamming and the Abschwingens, the abrasion and twisting off the cable is reduced.
Dadurch, dass der Kabelträger mit axialen und/oder radialen Befestigungsmitteln lösbar an definierten Bereichen des Gehäuses fixierbar ist, ist dessen Lage im Gehäuse mit hoher reproduzierbarer Genauigkeit herstellbar.The fact that the cable carrier with axial and / or radial fastening means is releasably fixed to defined areas of the housing, its position in the housing with high reproducible accuracy can be produced.
Dadurch, dass der Kabelträger wie ein Miniatur-Tisch aus einer Tischplatte mit Beinen bestehend ausgestaltet ist, wobei die Tischplatte quer zur Gehäuseachse positionierbar ist und als Trägerteil für das Kabel dient, ist er robust und montagefreundlich.The fact that the cable carrier is designed like a miniature table consisting of a table top with legs, wherein the table top is positioned transversely to the housing axis and serves as a support member for the cable, it is robust and easy to install.
Dadurch, dass der tischplattenartige Bereich als Führungsöffnung ein zentrales Loch hat, durch das die Kabel treten und damit nahe der Achse des Drehgelenks der Handwerkzeugmaschine zentriert sind, ist auf einfache Weise eine geringe mechanische Beanspruchung der Kabel beim Drehen des Handgriffs gesichert, weil dabei ihre Verdrehwege nahezu gleich Null sind.Characterized in that the table-plate-like area as a guide hole has a central hole through which the cables occur and thus centered near the axis of the rotary joint of the power tool, a low mechanical stress of the cable is easily secured when turning the handle, because while their Verdrehwege are almost zero.
Dadurch, dass die Führungsöffnung des Kabelträgers als Ringstutzen mit radial innen angeordnetem Rundringprofil ausgestaltet ist, über das das Kabel reibungsarm geführt ist, sind scharfe Knicke und hohe Biegebeanspruchung des Kabels sicher vermeidbar.Characterized in that the guide opening of the cable carrier is designed as a ring nozzle with radially inwardly arranged round ring profile, over which the cable is guided with low friction, sharp kinks and high bending stress of the cable are reliably avoidable.
Dadurch, dass die Schenkel des Kabelträgers innen am Gehäuse festlegbar, insbesondere anklipsbar, sind, ist die Montage des Kabelträgers und damit des Sensors besonders vereinfacht.The fact that the legs of the cable carrier inside the housing can be fixed, in particular clipped, the installation of the cable carrier and thus the sensor is particularly simplified.
Dadurch, dass die Schenkel an ihren freien Enden Schnapphaken tragen, die überrastend in Gegenstücke des Gehäuses passen, ist die Lage des Kabelträgers formschlüssig und spielfrei gesichert.The fact that the legs carry snap hooks at their free ends, which fit snapping into counterparts of the housing, the position of the cable carrier is positively secured and backlash-free.
Dadurch, dass die Beine als blattfederartige, federnde Schenkel ausgestaltet sind, ist der Kabelträger im Gehäuse einfach, genau und schnell montierbar. Dadurch, dass der tischplattenartige Bereich weitere Öffnungen trägt, die zur Aufnahme von Funktionsteilen, insbesondere elektrischen Bauteilen mit ihren Anschlussdrähten dienen, wie z.B. Widerstände, Kondensatoren oder dergl., kann der Kabelträger besonders vielfältig verwendet werden.The fact that the legs are designed as leaf-spring-like, resilient legs, the cable carrier in the housing is simple, accurate and quick to install. Characterized in that the table-top-like area carries further openings which serve to accommodate functional parts, in particular electrical components with their connecting wires, such as resistors, capacitors or the like., The cable carrier can be used in a particularly versatile.
Dadurch, dass der Kabelträger Abstützmittel enthält, der die Kabel bündelt ohne sie axial oder radial festzulegen, sind die Kabel besonders verschleißsicher angeordnet.Due to the fact that the cable carrier contains support means which bundles the cables without defining them axially or radially, the cables are arranged particularly wear-resistant.
Dadurch, dass der Kabelträger Fixiermittel aufweist, an denen ein Kabel klemmbar ist, sind die Einsatzmöglichkeiten des Kabelträgers erweitert.The fact that the cable carrier has fixing means to which a cable can be clamped, the possible applications of the cable carrier are extended.
Dadurch, dass der Kabelträger aus, insbesondere elastischem, Kunststoff besteht, ist er besonders leicht und wirkt elektrisch isolierend.Because the cable carrier consists of, in particular elastic, plastic, it is particularly light and has an electrically insulating effect.
Dadurch, dass der Kabelträger einen Sensor trägt, ist er durch Befestigen an einer definierten Position des Gehäuses einer benachbarten insbesondere auf der Rotorachse sitzenden Tachoscheibe besonders genau zuordenbar.Characterized in that the cable carrier carries a sensor, it is by attaching to a defined position of the housing of a neighboring, in particular sitting on the rotor axis tachometer disc particularly accurately assignable.
Dadurch, dass der Kabelträger weitere dezentrale Aussparungen und Nischen zum Kabeldurchtritt aufweist, ist er mit unterschiedlichsten Elektronikbauteilen bestückbar und vielfältig verwendbar.Because the cable carrier has further decentralized recesses and niches for cable passage, it can be equipped with a wide variety of electronic components and can be used in a variety of ways.
Dadurch, dass der Sensor ein Induktiver Widerstand ist, ist in Verbindung mit der Regelelektronik ein ständiger Soll-Ist-Abgleich der Motordrehzahl möglich.The fact that the sensor is an inductive resistor, in conjunction with the control electronics, a constant target-actual adjustment of the engine speed is possible.
Die vorliegende Erfindung ist nachstehend anhand eines Ausführungsbeispiels mit zugehöriger Zeichnung näher erläutert.The present invention is explained below with reference to an embodiment with accompanying drawings.
Es zeigen
- Figur 1
- eine Seitenansicht eines erfindungsgemäßen Winkelschleifers,
- Figur 2
- einen Längsschnitt des Motorgehäuses des Winkelschleifer,
- Figur 3
- eine räumliche Darstellung des Rotors,
- Figur 4
- eine Draufsicht des Motorgehäuses mit Kabelträger,
- Figur 5
- einen vergrößerten Ausschnitt gemäß
Figur 4 , - Figur 6
- eine vergrößerte Rückansicht gemäß
Figur 5 , - Figur 7
- eine räumliche Darstellung einer Tachoscheibe,
- Figur 8
- eine räumliche Darstellung des Rotors mit Lüfterrad und
- Figur 9 a) bis d)
- vier unterschiedliche Ansichten des Kabelträgers.
- FIG. 1
- a side view of an angle grinder according to the invention,
- FIG. 2
- a longitudinal section of the motor housing of the angle grinder,
- FIG. 3
- a spatial representation of the rotor,
- FIG. 4
- a top view of the motor housing with cable carrier,
- FIG. 5
- an enlarged section according to
FIG. 4 . - FIG. 6
- an enlarged rear view according to
FIG. 5 . - FIG. 7
- a spatial representation of a speedometer disk,
- FIG. 8
- a spatial representation of the rotor with fan and
- FIG. 9 a) to d)
- four different views of the cable carrier.
Die in
Der Handgriff 20 trägt eine Schalttaste 22, mit der der Motor 28 in oder außer Betrieb setzbar ist, wobei nach hinten ein Elektrokabel 24 zum Betrieb des Winkelschleifers austritt.The
In Betrachtungsrichtung rechts auf den Kommutator 36 folgen auf der Rotorachse 32 ein Wälzlager 38 und eine Tachoscheibe 42. Das Wälzlager 38 ist gehäuseseitig in einem Lagersitz 40 gehaltert, der als passgerechte Ausnehmung in einem Querrippensystem 60 des Motorgehäuses 12 positioniert ist. Das etwa kreuzförmige Querrippensystem 60 bildet eine durchbrochene Querwand am handgriffseitigen Ende des rohrförmigen Motorgehäuses 12. Die Tachoscheibe 42 kann sich in einem auf den Lagersitz 40 folgenden Sackloch 39 des Querrippensystems 60 frei drehen.In the direction of looking right on the
Im Querrippensystem 60 ist ein zentrischer tischförmige Kabelträger 46 angeordnet, der die Kabel 41 in einer zentralen Führungsöffnung 52 seines rechteckigen, tischplattenartigen Trägerteils 47 lose gebündelt zentriert. Die Kabel 41 sind damit im Inneren des Gehäuses 12 mit einem gewissen Spiel geführt sind dadurch geringer Reibung ausgesetzt als ohne einen solchen Kabelträger 46. Der Kabelträger 46 ist als Klammer ausgestaltet, von der an jeder der vier äußeren Ecken je ein paralleler Fuß rechtwinklig wegragt, wobei jeder Fuß als elastischer Schenkel 48 ausgestaltet ist, der an seinem freien Enden je einen Klipshaken 50 aufweist, mit dem er sich an entsprechend ausgestalteten Haltekanten 59 des Querrippensystems 60 überrastend und damit formschlüssig gegen Verlieren gesichert einhaken kann. Dazu durchgreifen die Schenkel 48 zunächst je eine axiale Ausnehmung 58 im etwa kreuzförmigen Querrippensystem 60, so dass die Klipshaken 50 an die ihnen zugeordneten Haltekanten 59 gelangen und sich dort hintergreifend formschlüssig gekuppelt festhalten können.In the
Zwei der Schenkel 48 des Kabelträgers 46 sind durch eine Querstrebe 49 miteinander versteifend miteinander verbunden. Die beiden gegenüberliegenden Schenkel 48 sind durch einen dickeren plattenartigen Bereich miteinander verbunden, der als Sensorträger 56 dient. Darin ist ein Sensor 45 eingebettet, der mittels des Kabelträgers 46 zur Tachoscheibe 42 in einem definierten Abstand/Luftspalt am Motorgehäuse 12 gehalten wird, damit seine Funktion sicher gewährleistet ist. Der Sensor 45 gibt drehzahlproportionale Spannungsimpulse an eine nichtdargestellte Regelelektronik weiter. Erreicht die Motordrehzahl einen Grenzwert innerhalb eines hohen Lastbereiches, löst die Regelelektronik ein Signal zur Reduzierung der Motorspannung bzw. zum Abschalten des Motors aus. Der Sensor ist hier in der Kabelführung vergossen angeordnet.Two of the
Dadurch, dass die zwei Kabel 41 des Sensors 45 im Gehäuse 18 nahe oder in der Achse des Drehgelenks 26 mittels der Kabelträger 46 als loser Kabelbaum beieinander gehalten werden, haben sie ausreichend Bewegungsfreiheit, um beim Drehen des Handgriffs 20 gegenüber dem Motorgehäuse 12 nicht beschädigt zu werden. Dazu trägt der radial innen ballig ausgestaltete Ringstutzen 51 bei, der die Führungsöffnung 52 axial verlängert und für eine große Stützlänge der Kabel 41 sorgt. Dies schützt die Kabel 41 gegen spitzwinklige Knickung und sichert große Biege-Radien mit entsprechend geringer mechanischer Belastung beim Benutzen der Handwerkzeugmaschine 10.
Weiter trägt die Kabelträger 46 nahe der Führungsöffnung 53 seitliche Schlitze 53 (
Außerdem hat die Kabelträger 46 weitere Vertiefungen, Bohrungen und Schlitze für die sichere Anordnung weiterer elektronischer Teile bzw. zum Führen und Klemmen von Kabeln.The fact that the two
Next carries the
In addition, the cable carrier has 46 more wells, holes and slots for the secure arrangement of other electronic parts or for guiding and clamping cables.
Der in
Die in
Der in
Der in
Die in
Der in
Die in den
Die Maße der am Kabelträger befindlichen Aussparungen und Schlitze sind auf übliche Kabeldurchmesser abgestimmt, so dass sie entweder als Kabelführungen oder als Kabelklemmung genutzt werden können. Bei der Nutzung als Kabelführung besteht eine lose Verbindung mit Spiel zwischen Kabel und Aussparung während bei Verwendung als Kabelklemmung das Kabel im Schlitz formschlüssig verankert ist. Diese unterschiedlichen Möglichkeiten lassen viel Freiheit für die räumliche Ausgestaltung von Handgriff und Motorgehäuse bei sicherer Kabelführung.The dimensions of the recesses and slots located on the cable carrier are matched to the usual cable diameter, so that they can be used either as cable guides or as Kabelklemmung. When used as a cable guide there is a loose connection with clearance between the cable and recess while when used as a cable clamp the cable is anchored positively in the slot. These different possibilities leave a lot of freedom for the spatial design of handle and motor housing with secure cable routing.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710057454 DE102007057454A1 (en) | 2007-11-29 | 2007-11-29 | Hand tool with running in a housing cables |
EP08804869A EP2217408A1 (en) | 2007-11-29 | 2008-09-29 | Hand-held power tool having cables extending in a housing |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08804869A Division EP2217408A1 (en) | 2007-11-29 | 2008-09-29 | Hand-held power tool having cables extending in a housing |
EP08804869.9 Division | 2008-09-29 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP2374578A2 true EP2374578A2 (en) | 2011-10-12 |
EP2374578A3 EP2374578A3 (en) | 2012-01-25 |
EP2374578B1 EP2374578B1 (en) | 2013-05-22 |
EP2374578B2 EP2374578B2 (en) | 2017-01-04 |
Family
ID=40076592
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11171511.6A Active EP2374578B2 (en) | 2007-11-29 | 2008-09-29 | Handheld machine tool with cables running in a housing |
EP08804869A Withdrawn EP2217408A1 (en) | 2007-11-29 | 2008-09-29 | Hand-held power tool having cables extending in a housing |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08804869A Withdrawn EP2217408A1 (en) | 2007-11-29 | 2008-09-29 | Hand-held power tool having cables extending in a housing |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP2374578B2 (en) |
DE (1) | DE102007057454A1 (en) |
WO (1) | WO2009068342A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2294676B1 (en) * | 2008-04-18 | 2013-11-13 | Robert Bosch GmbH | Machine tool, in particular hand machine tool |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3239238A1 (en) | 1982-10-21 | 1984-04-26 | Black & Decker, Inc. (Eine Gesellschaft N.D.Ges.D. Staates Delaware), Newark, Del. | METHOD FOR WIRING ELECTRICAL DEVICES, ESPECIALLY ELECTRIC TOOLS, AND ELECTRICAL DEVICE |
DE19546328A1 (en) | 1995-12-12 | 1997-06-19 | Bosch Gmbh Robert | Hand tool |
DE10254813A1 (en) | 2002-11-23 | 2004-06-03 | Hilti Ag | Electric hand machine tool with vibration-decoupled hammer mechanism assembly |
US20060194464A1 (en) | 2005-02-28 | 2006-08-31 | Credo Technology Corporation | Anti-disengagement connect system for a power tool |
FR2882625A1 (en) | 2005-03-03 | 2006-09-08 | Garden Depot Sarl | Motorized hedge trimmer for shrubs, has rear part with fixed interposed handle and end handle, where end handle is inclined at specific angle relative to longitudinal axis, and control units of both handles move in direction normal to axis |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4102838A1 (en) * | 1991-01-31 | 1992-08-06 | Bosch Gmbh Robert | HAND MACHINE TOOL |
DE4204947A1 (en) * | 1992-02-19 | 1993-08-26 | Scintilla Ag | POWERED HAND MACHINE |
GB9320181D0 (en) * | 1993-09-30 | 1993-11-17 | Black & Decker Inc | Improvements in and relating to power tools |
DE19636873A1 (en) * | 1996-09-11 | 1998-03-12 | Juergen Schmid | Electric hand-held angle grinding machine e.g. for carrying out work in motor vehicles |
DE10023226C1 (en) †| 2000-05-12 | 2001-10-25 | Metabowerke Kg | Electric handtool e.g. angle grinder or polishing tool, has holder for electronic circuit board positioned in separation plane between rotatable handgrip and motor housing |
-
2007
- 2007-11-29 DE DE200710057454 patent/DE102007057454A1/en not_active Withdrawn
-
2008
- 2008-09-29 EP EP11171511.6A patent/EP2374578B2/en active Active
- 2008-09-29 EP EP08804869A patent/EP2217408A1/en not_active Withdrawn
- 2008-09-29 WO PCT/EP2008/063010 patent/WO2009068342A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3239238A1 (en) | 1982-10-21 | 1984-04-26 | Black & Decker, Inc. (Eine Gesellschaft N.D.Ges.D. Staates Delaware), Newark, Del. | METHOD FOR WIRING ELECTRICAL DEVICES, ESPECIALLY ELECTRIC TOOLS, AND ELECTRICAL DEVICE |
DE19546328A1 (en) | 1995-12-12 | 1997-06-19 | Bosch Gmbh Robert | Hand tool |
DE10254813A1 (en) | 2002-11-23 | 2004-06-03 | Hilti Ag | Electric hand machine tool with vibration-decoupled hammer mechanism assembly |
US20060194464A1 (en) | 2005-02-28 | 2006-08-31 | Credo Technology Corporation | Anti-disengagement connect system for a power tool |
FR2882625A1 (en) | 2005-03-03 | 2006-09-08 | Garden Depot Sarl | Motorized hedge trimmer for shrubs, has rear part with fixed interposed handle and end handle, where end handle is inclined at specific angle relative to longitudinal axis, and control units of both handles move in direction normal to axis |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2294676B1 (en) * | 2008-04-18 | 2013-11-13 | Robert Bosch GmbH | Machine tool, in particular hand machine tool |
US8708062B2 (en) | 2008-04-18 | 2014-04-29 | Robert Bosch Gmbh | Machine tool, in particular a handheld power tool |
Also Published As
Publication number | Publication date |
---|---|
EP2374578A3 (en) | 2012-01-25 |
EP2217408A1 (en) | 2010-08-18 |
EP2374578B2 (en) | 2017-01-04 |
WO2009068342A1 (en) | 2009-06-04 |
EP2374578B1 (en) | 2013-05-22 |
DE102007057454A1 (en) | 2009-06-04 |
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