EP1208950B1 - Tool with a holder for attachment to a driving shaft - Google Patents
Tool with a holder for attachment to a driving shaft Download PDFInfo
- Publication number
- EP1208950B1 EP1208950B1 EP01127299A EP01127299A EP1208950B1 EP 1208950 B1 EP1208950 B1 EP 1208950B1 EP 01127299 A EP01127299 A EP 01127299A EP 01127299 A EP01127299 A EP 01127299A EP 1208950 B1 EP1208950 B1 EP 1208950B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holder
- tool
- working element
- mounting opening
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
- B24B27/08—Grinders for cutting-off being portable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B7/00—Hand knives with reciprocating motor-driven blades
Definitions
- the invention relates to a tool with a holder, the one Has fastening opening for connection to a drive shaft, which can preferably be driven in an oscillating manner, and also a Has receptacle for attaching a working part.
- the invention further relates to a holder and a working part for such a tool.
- Such a tool is known from EP 0 339 357 B1.
- a cutting knife especially for cutting through Joint seals or insulation on glass panes disclosed the detachable on the oscillating by means of a holder drivable drive shaft is attachable.
- the holder points For this purpose, a mounting opening with a corresponding shaped connecting piece of the drive shaft can be positively connected is.
- the cutting part or working part can either be immediate be connected to the holder or via an intermediate piece be attached to it.
- From US-A-5 480 507 is a tool with a holder according to the preamble of claim 1 known for receiving a in the longitudinal direction driven oscillating working part is.
- the working part has a plurality of Holes next to each other, through the screws in corresponding Recordings of the holder can be screwed to the working part securely attached to the holder.
- the invention is based on the object to improve a tool of the type mentioned above in such a way that enables a quick exchange of the tool is, at the same time sufficient stability of the connection between tool and drive should be guaranteed.
- the holding sections of the working part are designed as elongated holes are that towards the mounting opening extend and on the side facing this from the working part emptying outwards is a simple and quick process Replacing the work part on the holder allows. To do this only the securing elements or screws loosened then the working part with its elongated holes can be made pulled out of the holder and inserted a new working part then by tightening the securing elements or -screws are tightened again.
- the invention provides a working part suitable for this 8 and a suitable holder according to claim 9 on.
- the securing elements are designed as screws that in threaded sections can be screwed into the holder.
- the two screws can be attached to a form-fitting bracket to be dispensed with.
- the side protrudes from the Work part possible.
- the securing elements are expedient can be clamped to the holder by the holding sections.
- the holder a base body made of a plastic, which by a Metal core is reinforced, at least in the area the securing elements and / or the fastening opening extends.
- a light weight of the holder is considerable Advantage due to the reduced inertia of the tool, that must be driven by the drive, which is particularly the case with an oscillating drive is important.
- a special Advantage of this design is that the tool from the prime mover is electrically decoupled, whereby the Accident safety is increased.
- the holder can be advantageous and special inexpensive manufactured as a plastic injection molded part his.
- the core can be, for example, a substantially flat plate be formed by one or more protruding Cranks are reinforced, making the stability clear is improved.
- the fastening opening assigned a spring washer, which means a clamping screw can be clamped against the drive shaft.
- the machine tool 10 has, for example, an oscillation drive 12 on which a drive shaft 14 in one to their Longitudinal axis 18 oscillating oscillating motion with a small swivel angle of e.g. 0.5 - 5 ° and higher Frequency of e.g. about 5000 - 30000 vibrations per minute added.
- an oscillation drive 12 on which a drive shaft 14 in one to their Longitudinal axis 18 oscillating oscillating motion with a small swivel angle of e.g. 0.5 - 5 ° and higher Frequency of e.g. about 5000 - 30000 vibrations per minute added.
- oscillation drives are known and are for example for cutting an adhesive bead on a windshield in connection with an appropriately shaped Cutting knife used, provided the windshield is about must be replaced due to a defect. Furthermore have such oscillating driven tools for numerous other works proved to be advantageous, for which the various sawing tools from elongated, circular or part-circular shape, grinding tools of special Form or also cutting tools in the form of special trained cutting knives are known.
- Fig. 1 is such a tool
- the total with the Numeral 20 is designated on the drive shaft 14 by means of a Spring washer 38 and a tension screw passing through it 40 shown, which is screwed into a thread 16 of the drive shaft 14 is.
- the tool 20 consists of a holder 22 and a so connected working part 24, which as an elongated saw blade is formed, on the drive shaft 14 facing away End face formed a toothed straight cutting edge 30 is.
- Such a working part 24 is particularly suitable for production cuts in hard-to-reach places.
- the holder 22 comprises a base part 32, which by means of the clamping washer 38 and the clamping screw 40 at one end on the drive shaft 14 can be fastened and on the other the drive shaft 14 facing away from the working part 24 and by means of a mounting plate 34 and securing elements 36 can be fastened in the form of screws.
- the structure of the base part 32 is shown in more detail in FIGS. 4 to 6 to see.
- the base part 32 has an elongated basic shape on, with an approximately circular arc shaped first end, in the one attachment opening 42, which is for attachment to the Serves drive shaft 14 is formed.
- the base part 32 also has two slightly curved side edges, the other end facing away from the drive shaft 14 via two rounded corner sections converge again.
- this second end as can be seen from Fig. 6, is one Recess 49 provided. Two are related in this area spaced apart tangentially from the fastening opening 42, provided in the corner areas of the base part 32 Threaded inserts 44, 46 arranged, the thread approximately parallel runs to the longitudinal axis 18 of the drive shaft 14.
- These two threaded inserts 44, 46 are two corresponding positioned slots 26, 28 on a mounting portion 25 of the working part 24 according to FIG. 2.
- the working part 24 can thus with its fastening section 25 on the recess 49 of (shown enlarged in Figures 4 to 6 Base part) are placed so that after placing one accordingly shaped mounting plate 34 as shown in FIG. 8 whose holes 56, 60 through and through the elongated holes 26, 28th of the working part 24 through two clamping elements 36 in the form of Screws can be screwed into the threaded inserts 44, 46 so the working part 24 firmly on the base part 32 of the holder 22 tense.
- FIG. 3 is just another example of a working part 24 ', which is also an elongated one Saw blade is a rectangular basic shape has and a toothed at its outer end Cutting edge 30 'is provided. On its holder 22 facing The end is again two correspondingly shaped holding sections 26, 28 provided in the form of elongated holes.
- shaped work parts also work parts of any other shape and type can be attached to the holder 22, provided that they are only with one suitable mounting section and two appropriately trained Holding sections are provided.
- the working parts are designed as cutting knives, one have crescent-shaped curvature or even with straight, Cut edges tapering towards the center his.
- Any other shape is also conceivable.
- the toothing can be, for example, abrasive grains or with Carbide or diamond-tipped blades can be provided.
- the base part 32 as can be seen in more detail in FIG. 6, from a base body 48 made of plastic, which is formed by a core 50 made of metal, preferably steel, is reinforced.
- the core 50 is designed as a plate which is essentially over extends the entire area of the base part 32, on one of which A punched-out end 51 in the area of the fastening opening 42 is provided, and at the other end of the two threaded inserts 44, 46 (not shown in FIG. 5) riveted, are welded or molded in one piece.
- the core 50 has a crank 53 which protrudes upwards and a hole 55 is formed in the middle thereof.
- the core 50 can be simple Be produced as a stamped part on which the offset 53 in a suitable press is generated and then the threaded inserts 44, 46 are welded.
- the base part 32 can after inserting the core 50 into a suitable shape Injection molding.
- the crank 53 carries in considerable degree of torsional rigidity.
- Base part 32 At its end facing the drive shaft 14 it has Base part 32 on the side of the drive shaft 14 a light recessed receiving surface 52 for contact with the drive shaft 14 and on the opposite side a recess 54 for Receiving the spring washer 38.
- suitable recess 64 for receiving the clamping screw 40 provided, which is about a thumbscrew can, which on its peripheral surface with a suitable corrugation is provided or act, for example, an Allen screw can.
- a drive shaft could be polygonal and that the punched 51 of the Core 50 could have an adapted shape so that if the punch 51 up to the inner surface of the mounting opening 42 reaches, a positive connection between the cutout 51 and the drive shaft 14 could be achieved.
- the shape of the mounting plate 34 which is closer from Fig. 8 can be seen, the shape of the recess 49 of the Base part 32 adapted.
- the holes 56, 58 for performing the Tensioning elements 36 or screws are provided with countersinks 58, 62 provided so that the screws are centered.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Clamps And Clips (AREA)
- Connection Of Plates (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Sawing (AREA)
- Milling Processes (AREA)
- Gripping On Spindles (AREA)
- Jigs For Machine Tools (AREA)
Abstract
Description
Die Erfindung betrifft ein Werkzeug mit einem Halter, der eine Befestigungsöffnung zur Verbindung mit einer Antriebswelle aufweist, die vorzugsweise oszillierend antreibbar ist, sowie eine Aufnahme zur Befestigung eines Arbeitsteils aufweist.The invention relates to a tool with a holder, the one Has fastening opening for connection to a drive shaft, which can preferably be driven in an oscillating manner, and also a Has receptacle for attaching a working part.
Die Erfindung betrifft ferner einen Halter und ein Arbeitsteil für ein derartiges Werkzeug. The invention further relates to a holder and a working part for such a tool.
Ein derartiges Werkzeug ist aus der EP 0 339 357 B1 bekannt. Hierin ist ein Schneidmesser insbesondere zum Durchtrennen von Fugendichtungen oder Isolierungen bei Glasscheiben offenbart, das mittels eines Halters lösbar an der oszillierend antreibbaren Antriebswelle befestigbar ist. Der Halter weist hierzu eine Befestigungsöffnung auf, die mit einem entsprechend geformten Stutzen der Antriebswelle formschlüssig verbindbar ist. Das Schneidteil oder Arbeitsteil kann entweder unmittelbar mit dem Halter verbunden sein oder aber über ein Zwischenstück daran befestigt sein. Durch einen solchen geteilten Aufbau des Werkzeugs soll dies kostengünstiger herstellbar sein.Such a tool is known from EP 0 339 357 B1. Herein is a cutting knife especially for cutting through Joint seals or insulation on glass panes disclosed the detachable on the oscillating by means of a holder drivable drive shaft is attachable. The holder points For this purpose, a mounting opening with a corresponding shaped connecting piece of the drive shaft can be positively connected is. The cutting part or working part can either be immediate be connected to the holder or via an intermediate piece be attached to it. Through such a divided structure of the This tool should be cheaper to produce.
Die verschiedenen bekannten Varianten weisen jedoch den Nachteil auf, daß sie den hohen, teilweise stark wechselnden Belastungen nicht immer vollständig gewachsen sind und daß sie teilweise zu nachgiebig ausgebildet sind. Auch ist deren Aufbau relativ kompliziert. However, the various known variants have the disadvantage on the high, sometimes strongly changing Burdens are not always fully grown and that they are are partially too compliant. Its structure is also relatively complicated.
Aus der US-A-5 480 507 ist ein Werkzeug mit einem Halter gemäß dem Oberbegriff von Anspruch 1 bekannt, der zur Aufnahme eines in Längsrichtung oszillierend antreibbaren Arbeitsteils ausgebildet ist. Hierbei weist das Arbeitsteil eine Mehrzahl von Löchern nebeneinander auf, durch die Schrauben in entsprechende Aufnahmen des Halters eingeschraubt werden können, um das Arbeitsteil sicher am Halter zu fixieren.From US-A-5 480 507 is a tool with a holder according to the preamble of claim 1 known for receiving a in the longitudinal direction driven oscillating working part is. Here, the working part has a plurality of Holes next to each other, through the screws in corresponding Recordings of the holder can be screwed to the working part securely attached to the holder.
Hierbei gestaltet sich allerdings ein Wechsel des Arbeitsteils relativ aufwendig, da hierzu sämtliche Schrauben vollständig herausgeschraubt werden müssen, ein lösbares Teil des Halters abgenommen werden muss und erst anschließend das Arbeitsteil ausgewechselt werden kann und der Halter wieder zusammengeschraubt werden kann.However, this changes the work part relatively complex, since all screws are complete must be unscrewed, a detachable part of the holder must be removed and only then the work part can be replaced and the holder screwed together again can be.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zu Grunde, ein Werkzeug der vorstehend genannten Art derart zu verbessern, dass ein schneller Austausch des Werkzeuges ermöglicht ist, wobei gleichzeitig eine ausreichende Stabilität der Verbindung zwischen Werkzeug und Antrieb gewährleistet sein soll.Against this background, the invention is based on the object to improve a tool of the type mentioned above in such a way that enables a quick exchange of the tool is, at the same time sufficient stability of the connection between tool and drive should be guaranteed.
Diese Aufgabe wird durch ein Werkzeug mit den Merkmalen des Anspruchs 1 gelöst.This task is accomplished by a tool with the characteristics of Claim 1 solved.
Da die Halteabschnitte des Arbeitsteils als Langlöcher ausgebildet sind, die sich in Richtung zur Befestigungsöffnung hin erstrecken und auf der dieser zugewandten Seite aus dem Arbeitsteil nach außen ausmünden, ist ein einfaches und schnelles Auswechseln des Arbeitsteils am Halter ermöglicht. Hierzu müssen lediglich die Sicherungselemente bzw. -schrauben gelockert werden, sodann kann das Arbeitsteil mit seinen Langlöchern aus dem Halter herausgezogen und ein neues Arbeitsteil eingesteckt werden, das dann durch Anziehen der Sicherungselemente bzw. -schrauben wieder verspannt wird.Since the holding sections of the working part are designed as elongated holes are that towards the mounting opening extend and on the side facing this from the working part emptying outwards is a simple and quick process Replacing the work part on the holder allows. To do this only the securing elements or screws loosened then the working part with its elongated holes can be made pulled out of the holder and inserted a new working part then by tightening the securing elements or -screws are tightened again.
Ferner gibt die Erfindung ein hierfür geeignetes Arbeitsteil gemäß 8 und einen hierfür geeigneten Halter gemäß Anspruch 9 an.Furthermore, the invention provides a working part suitable for this 8 and a suitable holder according to claim 9 on.
In zweckmäßiger Weiterbildung der Erfindung sind die Sicherungselemente als Schrauben ausgebildet, die in Gewindeabschnitte am Halter einschraubbar sind.In an expedient development of the invention, the securing elements are designed as screws that in threaded sections can be screwed into the holder.
Auf diese Weise wird eine einfache und schnelle Befestigung des Arbeitsteils am Halter ermöglicht.In this way, a simple and quick attachment of the Working part on the holder allows.
Durch die zwei Schrauben kann auf eine formschlüssige Halterung verzichtet werden. Dadurch ist ein seitlicher Überstand des Arbeitsteils möglich. Die Sicherungselemente sind zweckmäßigerweise durch die Halteabschnitte mit dem Halter verspannbar. The two screws can be attached to a form-fitting bracket to be dispensed with. As a result, the side protrudes from the Work part possible. The securing elements are expedient can be clamped to the holder by the holding sections.
In vorteilhafter Weiterbildung der Erfindung weist der Halter einen Grundkörper aus einem Kunststoff auf, der durch einen Kern aus Metall verstärkt ist, der sich zumindest im Bereich der Sicherungselemente und/oder der Befestigungsöffnung erstreckt.In an advantageous development of the invention, the holder a base body made of a plastic, which by a Metal core is reinforced, at least in the area the securing elements and / or the fastening opening extends.
Durch diese Maßnahme kann der Halter möglichst leicht und gleichzeitig ausreichend formstabil und verwindungssteif ausgebildet werden. Ein geringes Gewicht des Halters ist ein erheblicher Vorteil wegen der verringerten Trägheit des Werkzeugs, das vom Antrieb angetrieben werden muß, was insbesondere bei einem oszillierenden Antrieb von Bedeutung ist. Ein besonderer Vorteil dieser Ausführung besteht darin, daß das Werkzeug von der Antriebsmaschine elektrisch abgekoppelt wird, wodurch die Unfallsicherheit erhöht wird.This measure allows the holder to be as light and easy as possible at the same time sufficiently dimensionally stable and torsionally rigid become. A light weight of the holder is considerable Advantage due to the reduced inertia of the tool, that must be driven by the drive, which is particularly the case with an oscillating drive is important. A special Advantage of this design is that the tool from the prime mover is electrically decoupled, whereby the Accident safety is increased.
Bei dieser Ausführung kann der Halter auf vorteilhafte und besonders kostengünstige Weise als Kunststoffspritzgußteil hergestellt sein.In this embodiment, the holder can be advantageous and special inexpensive manufactured as a plastic injection molded part his.
Der Kern kann beispielsweise als im wesentlichen ebene Platte ausgebildet sein, die durch eine oder mehrere hervorstehende Kröpfungen verstärkt ist, wodurch die Stabilität deutlich verbessert wird.The core can be, for example, a substantially flat plate be formed by one or more protruding Cranks are reinforced, making the stability clear is improved.
In zusätzlicher Weiterbildung der Erfindung ist der Befestigungsöffnung eine Spannscheibe zugeordnet, die mittels einer Spannschraube gegen die Antriebswelle verspannbar ist.In an additional development of the invention, the fastening opening assigned a spring washer, which means a clamping screw can be clamped against the drive shaft.
Durch diese Maßnahme ist eine einfache und schnelle Befestigung des Werkzeugs an der Antriebswelle ermöglicht.This measure makes attachment simple and quick of the tool on the drive shaft.
Es versteht sich, daß die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale der Erfindung nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the above and those below Features of the invention not yet to be explained in the specified combination, but also in others Combinations or alone can be used without the To leave the scope of the present invention.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele unter Bezugnahme auf die Zeichnung. Es zeigen:
- Fig. 1
- eine Seitenansicht eines erfindungsgemäßen Werkzeugs, das an nur einer rein schematisch dargestellten Werkzeugmaschine befestigt ist;
- Fig. 2
- eine Aufsicht des Arbeitsteils des Werkzeugs gemäß Fig. 1;
- Fig. 3
- eine Aufsicht eines leicht gegenüber der Ausführung gemäß Fig. 2 abgewandelten Arbeitsteils;
- Fig. 4
- eine Aufsicht eines Basisteils des Halters für das Werkzeug gemäß Fig. 1;
- Fig. 5
- eine Ansicht eines metallischen Kerns, der in dem Basisteil gemäß Fig. 4 aufgenommen ist;
- Fig. 6
- einen Schnitt durch das Basisteil gemäß Fig. 4 längs der Linie VI-VI;
- Fig. 7
- einen Schnitt durch eine Spannscheibe, die auf dem Halter aufsetzbar ist, um diesen mit Hilfe einer Spannschraube an der Antriebswelle der Werkzeugmaschine zu befestigen und
- Fig. 8
- eine Aufsicht auf eine Befestigungsplatte, die zur Befestigung des Arbeitsteils am Basisteil dient.
- Fig. 1
- a side view of a tool according to the invention, which is attached to only a purely schematically illustrated machine tool;
- Fig. 2
- a plan of the working part of the tool of FIG. 1;
- Fig. 3
- a top view of a slightly modified compared to the embodiment of FIG 2 working part.
- Fig. 4
- a plan view of a base part of the holder for the tool of FIG. 1;
- Fig. 5
- a view of a metallic core, which is incorporated in the base part of FIG. 4;
- Fig. 6
- a section through the base part of Figure 4 along the line VI-VI.
- Fig. 7
- a section through a clamping washer, which can be placed on the holder to fix it with the help of a clamping screw on the drive shaft of the machine tool and
- Fig. 8
- a top view of a mounting plate, which is used to attach the working part to the base part.
In Fig. 1 ist eine Werkzeugmaschine rein schematisch mit der
Ziffer 10 angedeutet.In Fig. 1, a machine tool is purely schematic with the
Die Werkzeugmaschine 10 weist beispielsweise einen Oszillationsantrieb
12 auf, der eine Antriebswelle 14 in eine um ihre
Längsachse 18 hin und her oszillierende Oszillationsbewegung
mit geringem Verschwenkwinkel von z.B. 0,5 - 5° und hoher
Frequenz von z.B. etwa 5000 - 30000 Schwingungen pro Minute
versetzt.The
Derartige Oszillationsantriebe sind bekannt und werden beispielsweise zum Durchtrennen eines Klebewulstes an einer Windschutzscheibe in Verbindung mit einem entsprechend geformten Schneidmesser verwendet, sofern die Windschutzscheibe etwa wegen eines Defektes ausgetauscht werden muß. Darüber hinaus haben sich derartige oszillierend angetriebene Werkzeuge für zahlreiche andere Arbeiten als vorteilhaft erwiesen, wozu die verschiedenartigsten Sägewerkzeuge von länglicher, kreisförmiger oder teilkreisförmiger Form, Schleifwerkzeuge von besonderer Form oder auch Schneidwerkzeuge in Form von speziell ausgebildeten Schneidmessern bekannt sind.Such oscillation drives are known and are for example for cutting an adhesive bead on a windshield in connection with an appropriately shaped Cutting knife used, provided the windshield is about must be replaced due to a defect. Furthermore have such oscillating driven tools for numerous other works proved to be advantageous, for which the various sawing tools from elongated, circular or part-circular shape, grinding tools of special Form or also cutting tools in the form of special trained cutting knives are known.
In Fig. 1 ist ein derartiges Werkzeug, das insgesamt mit der
Ziffer 20 bezeichnet ist, an der Antriebswelle 14 mittels einer
Spannscheibe 38 und einer diese durchsetztenden Spannschraube
40 dargestellt, die in ein Gewinde 16 der Antriebswelle 14 eingeschraubt
ist.In Fig. 1 is such a tool, the total with the
Das Werkzeug 20 besteht aus einem Halter 22 und einem damit
verbundenen Arbeitsteil 24, das als längliches Sägeblatt
ausgebildet ist, an dessen der Antriebswelle 14 abgewandter
Stirnfläche eine gezahnte gerade Schneidkante 30 ausgebildet
ist.The
Ein solches Arbeitsteil 24 eignet sich besonders zum Erzeugen
von Schnitten an schwer zugänglichen Stellen.Such a working
Der Halter 22 umfaßt ein Basisteil 32, das mittels der Spannscheibe
38 und der Spannschraube 40 am einen Ende an der Antriebswelle
14 befestigbar ist und an dessen anderem der Antriebswelle
14 abgewandten Ende das Arbeitsteil 24 aufgenommen
und mittels einer Befestigungsplatte 34 und Sicherungselementen
36 in Form von Schrauben befestigbar ist. The
Der Aufbau des Basisteils 32 ist aus den Figuren 4 bis 6 näher
zu ersehen.The structure of the
Das Basisteil 32 weist gemäß Fig. 4 eine längliche Grundform
auf, mit einem etwa kreisbogenförmig geformten ersten Ende, in
dem eine Befestigungsöffnung 42, die zur Befestigung an der
Antriebswelle 14 dient, ausgebildet ist. Das Basisteil 32
besitzt ferner zwei leicht nach außen gewölbte Seitenkanten,
die am anderen, der Antriebswelle 14 abgewandten Ende über zwei
gerundete Eckabschnitte wieder zusammenlaufen. Im Bereich
dieses zweiten Endes ist, wie aus Fig. 6 zu ersehen ist, eine
Aussparung 49 vorgesehen. In diesem Bereich sind zwei in Bezug
auf die Befestigungsöffnung 42 tangential voneinander beabstandete,
in den Eckbereichen, des Basisteils 32 vorgesehene
Gewindeeinsätze 44, 46 angeordnet, deren Gewinde etwa parallel
zur Längsachse 18 der Antriebswelle 14 verläuft.4, the
Diesen beiden Gewindeeinsätzen 44, 46 sind zwei entsprechend
positionierte Langlöcher 26, 28 an einem Befestigungsabschnitt
25 des Arbeitsteils 24 gemäß Fig. 2 zugeordnet. Das Arbeitsteil
24 kann also mit seinem Befestigungsabschnitt 25 auf die Aussparung
49 des (in den Figuren 4 bis 6 vergrößert dargestellten
Basisteils) aufgelegt werden, so daß nach Auflegen einer entsprechend
geformten Befestigungsplatte 34 gemäß Fig. 8 durch
deren Löcher 56, 60 hindurch und durch die Langlöcher 26, 28
des Arbeitsteils 24 hindurch zwei Spannelemente 36 in Form von
Schrauben in die Gewindeeinsätze 44, 46 einschraubbar sind, um
so das Arbeitsteil 24 fest am Basisteil 32 des Halters 22 zu
verspannen. These two threaded
Da die beiden Halteabschnitte 26, 28 des Arbeitsteils 24 als
Langlöcher ausgebildet sind, die an der der Antriebswelle 14
zugewandten Stirnseite aus dem Befestigungsabschnitt 25 ausmünden,
brauchen die beiden Schrauben oder Sicherungselemente
36, mit denen das Arbeitsteil 24 unter Auflage der Befestigungsplatte
34 gegen das Basisteil 32 verspannt ist, zum
Auswechseln des Arbeitsteils 24 lediglich gelockert werden, so
daß das Arbeitsteil 24 dann nach außen herausgezogen werden
kann. Ein anderes Arbeitsteil kann sodann wieder mit entsprechend
geformten Halteabschnitten bzw. Langlöchern 26, 28 in
den Zwischenraum zwischen Befestigungsplatte 34 und der Oberfläche
der Aussparung 49 eingeschoben werden, bis die beiden
Langlöcher oder Halteabschnitte 26, 28 an den Sicherungselementen
36 oder Schrauben anschlagen. Anschließend werden die
Sicherungselemente 36 oder Schrauben angezogen, um das Arbeitsteil
24 wieder zu befestigen.Since the two holding
Auf diese Weise ist ein schneller Austausch und eine stabile
und steife Befestigung des Arbeitsteils am Halter 22 gewährleistet.
Es lassen sich auch verschiedenartig geformte Arbeitsteile
am Halter 22 befestigen, sofern sie nur mit einem geeigneten
Befestigungsabschnitt 25 versehen sind, in dem zwei entsprechend
geformte Halteabschnitte 26, 28 vorgesehen sind.This is a quick exchange and a stable one
and rigid attachment of the working part to the
In Fig. 3 ist lediglich rein beispielhaft ein weiteres Arbeitsteil
24' dargestellt, bei dem es sich gleichfalls um ein längliches
Sägeblatt handelt, das eine rechteckförmige Grundform
aufweist und an dessem äußeren Ende wiederum eine gezahnte
Schneidkante 30' vorgesehen ist. An seinem dem Halter 22 zugewandten
Ende sind wiederum zwei entsprechend geformte Halteabschnitte
26, 28 in Form von Langlöchern vorgesehen. Der einzige
Unterschied zum Arbeitsteil 24 gemäß Fig. 2 besteht also
in einer größeren Breite der Schneidkante 30', so daß das Arbeitsteil
24' einen insgesamt rechteckförmigen Umriß besitzt.3 is just another example of a working part
24 ', which is also an elongated one
Saw blade is a rectangular basic shape
has and a toothed at its outer end
Cutting edge 30 'is provided. On its
Es versteht sich, daß neben solchermaßen geformten Arbeitsteilen
auch beliebig anders geformte und geartete Arbeitsteile
am Halter 22 befestigt werden können, sofern sie nur mit einem
geeigneten Befestigungsabschnitt und zwei entsprechend ausgebildeten
Halteabschnitten versehen sind. Beispielsweise könnten
die Arbeitsteile als Schneidmesser ausgebildet sein, die eine
sichelförmige Krümmung aufweisen oder auch mit gerade geformten,
zur Mitte hin keilförmig zulaufenden Schneidkanten versehen
sein. Daneben sind beliebige andere Formen denkbar. Statt
der Verzahnung können beispielsweise Schleifkörner oder mit
Hartmetall bzw. Diamant bestückte Schneiden vorgesehen sein.It is understood that in addition to such shaped work parts
also work parts of any other shape and type
can be attached to the
Das Basisteil 32 besteht, wie aus Fig. 6 näher zu ersehen ist,
aus einem Grundkörper 48 aus Kunststoff, der durch einen Kern
50 aus Metall, vorzugsweise aus Stahl, verstärkt ist. Der Kern
50 ist als Platte ausgebildet, die sich im wesentlichen über
die gesamte Fläche des Basisteils 32 erstreckt, an dessen einem
Ende eine Ausstanzung 51 im Bereich der Befestigungsöffnung 42
vorgesehen ist, und an dessen anderem Ende die beiden Gewindeeinsätze
44, 46 (in Fig. 5 nicht dargestellt) angenietet,
angeschweißt oder einstückig angeformt sind. In der Mitte
besitzt der Kern 50 eine Kröpfung 53, die nach oben hervorsteht
und in deren Mitte ein Loch 55 gebildet ist.The
Diese Form dient einer Erhöhung der Verwindungssteifigkeit bei
gleichzeitiger Gewichtsersparnis. Der Kern 50 kann auf einfache
Weise als Stanzteil hergestellt sein, an dem die Kröpfung 53 in
einer geeigneten Presse erzeugt wird und an das anschließend
die Gewindeeinsätze 44, 46 angeschweißt werden. Das Basisteil
32 kann nach Einlegen des Kerns 50 in eine geeignete Form durch
Spritzgießen hergestellt werden. Die Kröpfung 53 trägt in
erheblichem Maße zur Verwindungssteifigkeit bei.This shape serves to increase the torsional rigidity
simultaneous weight saving. The core 50 can be simple
Be produced as a stamped part on which the offset 53 in
a suitable press is generated and then
the threaded inserts 44, 46 are welded. The
An seinem der Antriebswelle 14 zugewandten Ende besitzt das
Basisteil 32 auf der Seite der Antriebswelle 14 eine leicht
vertiefte Aufnahmefläche 52 zur Anlage an der Antriebswelle 14
und auf der gegenüberliegenden Seite eine Vertiefung 54 zur
Aufnahme der Spannscheibe 38. In der Spannscheibe 38 ist eine
geeignete Vertiefung 64 zur Aufnahme der Spannschraube 40
vorgesehen, bei der es sich etwa um eine Rändelschraube handeln
kann, die an ihrer Umfangsfläche mit einer geeigneten Riffelung
versehen ist oder beispielsweise um eine Imbusschraube handeln
kann.At its end facing the
Es versteht sich, daß für den Fall, daß eine formschlüssige
Verbindung zwischen dem Halter 22 und der Antriebswelle 14 gewünscht
oder vorteilhaft ist, an der Antriebswelle etwa ein
Mehrkant ausgebildet sein könnte und daß die Ausstanzung 51 des
Kerns 50 eine angepaßte Form aufweisen könnte, so daß dann,
wenn die Ausstanzung 51 bis an die Innenoberfläche der Befestigungsöffnung
42 heranreicht, eine formschlüssige Verbindung
zwischen der Ausstanzung 51 und der Antriebswelle 14
erreicht werden könnte.It is understood that in the event that a positive
Connection between the
Die Form der Befestigungsplatte 34, die aus Fig. 8 näher
ersichtlich ist, ist an die Form der Aussparung 49 des
Basisteils 32 angepaßt. Die Löcher 56, 58 zur Durchführung der
Spannelemente 36 oder Schrauben sind mit Ansenkungen 58, 62
versehen, so daß die Schrauben zentriert werden.The shape of the mounting
Claims (9)
- Tool having a holder (22) provided with a mounting opening (42) for mounting it on a drive shaft (14), which preferably can be driven in oscillating fashion, and having further a fixture for mounting a working element (24, 24'), wherein the working element (24, 24') comprises at least two spaced holding sections (26, 28) and wherein a mounting plate (34) is provided which is engaged by releasable securing elements (36), that coact with the holding sections (26, 28) for clamping the working element (24, 24') against the holder (22), characterized in that the holding sections (26, 28) are designed as oblong holes which extend in a direction toward the mounting opening (42) and which are open to the outside on the side of the working element (24, 24') that faces the mounting opening.
- The tool as defined in claim 1, characterized in that the securing elements (36) take the form of screws that can be screwed into threaded sections (44, 46) of the holder.
- The tool as defined in claim 1 or claim 2, characterized in that securing elements (36) can be clamped against the holder (22) by means of the holding sections (26, 28).
- The tool as defined in any of the preceding claims, characterized in that the holder (22) comprises a main body (48), made of a plastic material, which is reinforced by a metal core (50) extending at least in the area of the securing elements (36) or the mounting opening (42).
- The tool as defined in claim 4, characterized in that the core is designed as a substantially plane plate reinforced by at least one projecting crimped portion (53).
- The tool as defined in claim 4 or claim 5, characterized in that the holder (22) is configured as an injection-molded plastic part.
- The tool as defined in any of the preceding claims, characterized in that a strain washer (38) that can be clamped on the drive shaft (14) by means of a clamping screw (40) is associated to the mounting opening (42).
- Working element for a tool (20) according to any of the preceding claims, characterized in that the holding sections (26, 28) are configured as oblong holes that extend in a direction toward the mounting opening (42) and which are open to the outside on the side of the working element (24, 24') that faces the mounting opening.
- Holder for a tool (20) according to any of claims 1 to 7, which is designed for mounting a working element (24, 24') comprising at least two holding sections (26, 28) configured as oblong holes spaced from each other which extend in a direction toward the mounting opening (42) and which are open to the outside on the side of the working element (24, 24') that faces the mounting opening, wherein the holder (22) comprises mounts (44, 46) for receiving securing elements (36) by means of which the working element (24, 24') can be clamped against the holder (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10058894A DE10058894A1 (en) | 2000-11-23 | 2000-11-23 | Tool, e.g. a cutter for cutting through sealed joints, has an attachment mechanism for connection to a drive shaft and a safety element that serves to tension a working part against a holder |
| DE10058894 | 2000-11-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1208950A1 EP1208950A1 (en) | 2002-05-29 |
| EP1208950B1 true EP1208950B1 (en) | 2004-04-21 |
Family
ID=7664870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01127299A Expired - Lifetime EP1208950B1 (en) | 2000-11-23 | 2001-11-17 | Tool with a holder for attachment to a driving shaft |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6865813B2 (en) |
| EP (1) | EP1208950B1 (en) |
| JP (1) | JP3639247B2 (en) |
| CN (1) | CN1321783C (en) |
| AT (1) | ATE264731T1 (en) |
| DE (2) | DE10058894A1 (en) |
| ES (1) | ES2217076T3 (en) |
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| DE10164081B4 (en) * | 2001-12-19 | 2012-01-26 | C. & E. Fein Gmbh | Oscillating tool with compensation section |
| DE10256015B4 (en) * | 2002-11-30 | 2005-04-14 | Gaplast Gmbh | Method for producing a container with at least one pressure equalization opening |
| DE20305402U1 (en) * | 2003-03-31 | 2003-05-28 | C & E Fein Gmbh & Co Kg | Grinding tool for sharpening tools |
| DE20308797U1 (en) * | 2003-05-28 | 2003-08-28 | C & E Fein Gmbh & Co Kg | Saw with a rotating oscillating drive movement and saw blade therefor |
| US8418369B1 (en) * | 2003-10-07 | 2013-04-16 | Kim Laube | Clipper lever support insert |
| DE102004050799A1 (en) * | 2004-10-19 | 2006-04-20 | Robert Bosch Gmbh | Indexable insert with at least two cutting edges and blade holder |
| CA2705732A1 (en) | 2007-11-13 | 2009-05-22 | Orthopediatrics, Llc | Cast removal system |
| US8920424B2 (en) * | 2008-06-11 | 2014-12-30 | Medtronic Ps Medical, Inc. | Micro-saw blade for bone-cutting surgical saws |
| US20100186235A1 (en) * | 2009-01-26 | 2010-07-29 | Eric Davis Schwartz | Portable battery operated pipe cutter |
| WO2010099762A1 (en) * | 2009-03-06 | 2010-09-10 | 苏州宝时得电动工具有限公司 | Cutting tool |
| US9186770B2 (en) | 2010-04-29 | 2015-11-17 | Black & Decker Inc. | Oscillating tool attachment feature |
| US8925931B2 (en) | 2010-04-29 | 2015-01-06 | Black & Decker Inc. | Oscillating tool |
| US9073195B2 (en) | 2010-04-29 | 2015-07-07 | Black & Decker Inc. | Universal accessory for oscillating power tool |
| US8616562B2 (en) | 2010-06-16 | 2013-12-31 | Robert Bosch Gmbh | Adapter for coupling an accessory tool to a drive member of a power tool |
| US9149923B2 (en) | 2010-11-09 | 2015-10-06 | Black & Decker Inc. | Oscillating tools and accessories |
| DE102011077622A1 (en) * | 2011-06-16 | 2012-12-20 | Robert Bosch Gmbh | Machine tool device |
| WO2013044844A1 (en) | 2011-09-29 | 2013-04-04 | 苏州宝时得电动工具有限公司 | Multifunctional machine |
| US8858559B2 (en) | 2012-02-06 | 2014-10-14 | Medtronic Ps Medical, Inc. | Saw blade stability and collet system mechanism |
| US8936597B2 (en) | 2012-02-06 | 2015-01-20 | Medtronic Ps Medical, Inc. | Deflectable finger connection feature on surgical saw blade |
| EP2639021A1 (en) * | 2012-03-13 | 2013-09-18 | Sika Technology AG | Blade unit for oscillating cutter, oscillating cutter and process for glass removal of window and door sashes |
| USD832666S1 (en) | 2012-07-16 | 2018-11-06 | Black & Decker Inc. | Oscillating saw blade |
| US9555554B2 (en) | 2013-05-06 | 2017-01-31 | Milwaukee Electric Tool Corporation | Oscillating multi-tool system |
| US9527146B2 (en) | 2013-10-04 | 2016-12-27 | Toronto Saw Works Inc. | Oscillating saw blades |
| EP3258859B1 (en) | 2015-02-19 | 2019-06-05 | Stryker Corporation | Surgical saw and complementary saw blade, the blade including lock teeth formed out of material that deforms when the blade is secured to the saw |
| WO2016132320A1 (en) * | 2015-02-19 | 2016-08-25 | Toronto Saw Works Inc. | Saw blades with non-straight joints |
| US10265778B2 (en) | 2017-01-16 | 2019-04-23 | Black & Decker Inc. | Accessories for oscillating power tools |
| USD814900S1 (en) | 2017-01-16 | 2018-04-10 | Black & Decker Inc. | Blade for oscillating power tools |
| US10906108B2 (en) * | 2018-04-24 | 2021-02-02 | Robert Bosch Tool Corporation | Blade accessory with guide |
| CN109623911A (en) * | 2019-02-15 | 2019-04-16 | 陈绪涛 | A kind of high-efficient automatic excision forming device for plastic plate |
| USD931069S1 (en) | 2019-05-03 | 2021-09-21 | Tti (Macao Commercial Offshore) Limited | Blade |
| US11738398B2 (en) | 2020-11-18 | 2023-08-29 | Milwaukee Electric Tool Corporation | Accessory for an oscillating power tool |
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-
2000
- 2000-11-23 DE DE10058894A patent/DE10058894A1/en not_active Withdrawn
-
2001
- 2001-11-17 DE DE50102043T patent/DE50102043D1/en not_active Expired - Lifetime
- 2001-11-17 AT AT01127299T patent/ATE264731T1/en active
- 2001-11-17 ES ES01127299T patent/ES2217076T3/en not_active Expired - Lifetime
- 2001-11-17 EP EP01127299A patent/EP1208950B1/en not_active Expired - Lifetime
- 2001-11-19 JP JP2001353469A patent/JP3639247B2/en not_active Expired - Fee Related
- 2001-11-21 US US09/988,956 patent/US6865813B2/en not_active Expired - Fee Related
- 2001-11-23 CN CNB011394196A patent/CN1321783C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1208950A1 (en) | 2002-05-29 |
| CN1356200A (en) | 2002-07-03 |
| JP2002172522A (en) | 2002-06-18 |
| US20020069727A1 (en) | 2002-06-13 |
| JP3639247B2 (en) | 2005-04-20 |
| US6865813B2 (en) | 2005-03-15 |
| ATE264731T1 (en) | 2004-05-15 |
| DE50102043D1 (en) | 2004-05-27 |
| ES2217076T3 (en) | 2004-11-01 |
| DE10058894A1 (en) | 2002-06-06 |
| CN1321783C (en) | 2007-06-20 |
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