EP2531329B1 - Cutting head having a trimmer and blade - Google Patents

Cutting head having a trimmer and blade Download PDF

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Publication number
EP2531329B1
EP2531329B1 EP11704169.9A EP11704169A EP2531329B1 EP 2531329 B1 EP2531329 B1 EP 2531329B1 EP 11704169 A EP11704169 A EP 11704169A EP 2531329 B1 EP2531329 B1 EP 2531329B1
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EP
European Patent Office
Prior art keywords
cutting head
head according
lever
cutting
cutting blade
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EP11704169.9A
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German (de)
French (fr)
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EP2531329A1 (en
Inventor
Robert Gratz
Kurt Maurer
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Payer International Technologies GmbH
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Payer International Technologies GmbH
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Priority to DE11704169T priority Critical patent/DE11704169T8/en
Publication of EP2531329A1 publication Critical patent/EP2531329A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B26B19/288—Balance by opposing oscillation

Definitions

  • the invention relates to a cutting head, in particular for razors, having a substantially U-shaped trimmer with a fixed comb and at least one oscillatingly driven relative to this cutting blade and at least one arranged between the legs of the U-shaped trimmer, oscillating drivable cutter and a razor with such a cutting head.
  • Razors are known in different forms.
  • shaving heads with at least one shearing blade are known, relative to which a cutter is moved in an oscillating manner.
  • the combination of a trimmer to shorten longer hair with a cutter for grasping and cutting the already shortened hair is also known in the art.
  • the trimmer is attached to one side of the shaver and can be extended or retracted as needed.
  • cutting heads which have trimmers on both sides of a centrally located shaving head, so that when trimming, the trimmers first trim longer hairs and then cut off the pre-shortened hairs in the connection of the shearing foil cooperating with a shearing foil.
  • the publication FR 1435860 shows a cutting head for razors with a substantially U-shaped trimmer and arranged between the legs of the U-shaped trimmer, with a shear foil cooperating cutter.
  • the aim of the present invention is to develop a cutting head of the prior art such that the noise and in particular the vibrations of such a cutting head are reduced and the cutting head in a simple manner a drive separated and thus can be easily cleaned or replaced. Furthermore, it is an object of the invention that the force of the drive motor with as few deflections is transmitted to the cutting head, so this is physically small and inexpensive to manufacture.
  • the cutting head of the type mentioned is inventively further developed such that the cutting blade and the at least one cutter are driven to opposite directions movement.
  • the vibrations and the noise can be greatly reduced.
  • the imbalance of the drive which is responsible for the vibrations of the shaving head, is reduced.
  • the noise is also reduced at the same time, since the vibrations cause the cutter to hit the shear foil associated with the cutter and thus rattle.
  • Other moving parts are moved by the vibrations and generate noise.
  • the cutting head is developed such that the cutting blade is formed substantially U-shaped.
  • the trimmer may have two cutting blades, which are guided on the legs of the U-shaped fixed comb.
  • a reference to the U-shape does not necessarily mean that the legs of the U-shaped trimmer are parallel. It is only important that between the two trimmer legs enough space for the attachment of a cutter remains. Formations in which the legs of the U-shape diverge, converge or both legs are formed inclined in the same direction, thus forming a one-sided open trapezoid or a rhombus open on one side are also possible within the scope of the invention.
  • the inventive cutting head is developed such that the masses which are driven by the opposite lever arms, are chosen to be substantially equal. This ensures that vibrations are largely avoided.
  • the cutting head according to the invention is developed in a preferred manner such that the body of the cutting blade has recesses for adjusting its mass. By providing recesses, the mass of the cutting blade, which usually has a larger mass compared to the at least one cutter, be selectively reduced to be adapted to the mass of at least one cutter.
  • the cutting head is preferably developed in such a way that the one or more shear blocks cooperate with one or more shear sheets.
  • the vibrating element By preferably fixing the at least one cutter to a vibrating member into which the lever engages, conventional shearblocks can be used which can be fixed to the vibrating member in a known manner, the vibrating member being made of a less expensive material can. Thus, the total manufacturing costs can be reduced.
  • the vibrating element also offers the possibility of driving a plurality of shear blocks together.
  • the cutting head is developed such that the cutting blade is fixed to a swing bridge.
  • the cutting blade is therefore driven by the swing bridge, wherein the swinging bridge serves to further shift the point of application for the drive of the cutting blade from the plane of the cutting blade, so that the drive can be done by means of the lever arm of the already described drive lever, which faces away from the shear system.
  • the swinging bridge can easily consist of a different material from the material of the cutting blade, in particular plastic, which can reduce the manufacturing cost.
  • the swing bridge has a passage through which the lever is guided.
  • the lever does not have to be expensive on the side guided around the swing bridge, but can then be stored centrally. This creates the possibility of a substantially symmetrical structure, so that the masses on both sides of the plane of symmetry, namely a longitudinal center plane corresponding to plane VI-VI in Fig. 5 to be compensated in a simple way. By this measure, one-sided loads of the lever can be avoided and thereby the life of the lever and thus of the cutting head can be increased.
  • the swing bridge has a web which engages the drive of the cutting blade in a slot of the lever.
  • the oscillatory movement of the lever can be implemented in a simple manner in an oscillating movement of the swing bridge.
  • the invention further relates to a razor with a cutting head according to the invention.
  • FIG.1 an exploded view of the cutting head according to the invention
  • Fig.2 the assembled invention Cutting head in a perspective view
  • Figure 3 a side view of the cutting head according to the invention
  • Figure 4 a section after IV-IV of Figure 3
  • Figure 5 a view of the narrow side of the cutting head according to the invention
  • Figure 6 a section according to VI-VI of Figure 5
  • Figure 7 a cut according to the Fig. 6 in right eccentric position and removed cover frame.
  • FIG.1 an inventive cutting head 1 is shown disassembled in an isometric view.
  • the cutting head 1 comprises a cover frame 2, shear sheets 3, which cooperate with shear blocks 4, wherein the shear blocks 4 are fixed to a vibrating element 5.
  • the cutting head 1 comprises a movable U-shaped cutting blade 6, which cooperates with a fixed U-shaped comb 7 and is driven by the lever 9 via the oscillating bridge 8.
  • the lever 9 is fixed by means of a bolt 10 in the base frame 11, wherein the base frame carries the stationary comb 7.
  • an eccentric is referred to, but which is no longer part of the cutting head 1.
  • the recesses 13 in the cutting blade 6 are used to adjust the masses, which are driven by the lever arms 14, 15 of the lever 9.
  • the oscillating element 5 has on its upper side resilient pad 16, which press the shear blocks 4 against the foil 3 and hold in abutment, and has on its underside guide lugs 17, which are guided on the underside of the comb 7 slidably.
  • the bolt 10 passes through the holes 20 in the base frame 11, through the window 21 in the swinging bridge 8 and through the bore 19 of the lever 9 and forms the pivot axis of the lever 9.
  • On the drive side lever arm 14 is an engagement 22 for a Eccentric 12, which tapers upwards and merges into a slot 23. In this slot 23, the web 24 of the swing bridge 8 is guided.
  • At the end of the output side lever arm 15 is a drive head 18th
  • FIG. 2 an isometric view of the cutting head 6 according to the invention is shown, wherein the same reference numerals designate the same components.
  • Figure 7 is a similar view as Figure 6 However, the cover frame 2 is removed and the drive lever 9 is in a deflected position, so that the operation of the opposing drive of the cutting blade and the cutter block can be understood.
  • the lever 9 is pivoted about the axis formed by the bolt 10 and the lever arm 14 is deflected to the right and lever arm 15 to the left. Characterized in that the web 24 and thus the swinging bridge 8 are hinged to the lever arm 14, the cutting blade 6 is in a shifted to the right position.
  • the shear blocks 4 are connected via the oscillating element 5 with the drive head 18, which is located on the lever arm 15, whereby the shear blocks 4 are in a deflected to the left position.
  • shear blocks 4 always move in opposite directions to the cutting blade 6. If the distance between drive head 18 and pin 10 and the distance between web 24 and pin 10 in the assembled state and the masses are also the same size, are the forces on both lever arms 14, 15 the same size, which in addition one-sided loads of the lever 9 can be avoided.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Description

Die Erfindung betrifft einen Schneidkopf, insbesondere für Rasierapparate, mit einem im wesentlichen U-förmigen Trimmer mit einem feststehenden Kamm und wenigstens einem relativ zu diesem oszillierend antreibbaren Schneidmesser und wenigstens einem zwischen den Schenkeln des U-förmigen Trimmers angeordneten, oszillierend antreibbaren Scherblock sowie einen Rasierapparat mit einem derartigen Schneidkopf.The invention relates to a cutting head, in particular for razors, having a substantially U-shaped trimmer with a fixed comb and at least one oscillatingly driven relative to this cutting blade and at least one arranged between the legs of the U-shaped trimmer, oscillating drivable cutter and a razor with such a cutting head.

Rasierapparate sind in unterschiedlichen Ausbildungen bekannt. Neben Geräten mit rotierenden Messern sind vor allen Dingen Scherköpfe mit wenigstens einem Scherblatt bekannt, relativ zu welchem ein Scherblock oszillierend bewegt wird. Die Kombination eines Trimmers zum Kürzen längerer Haare mit einem Scherblock zum Erfassen und Schneiden der bereits gekürzten Haare ist ebenso aus dem Stand der Technik bekannt. Zumeist ist der Trimmer dabei an einer Seite des Rasierapparats angebracht und kann bei Bedarf aus- bzw. eingefahren werden. Ebenfalls aus dem Stand der Technik bekannt sind Schneidköpfe, die zu beiden Seiten eines zentral gelegenen Scherkopfs Trimmer aufweisen, sodass beim Rasieren zuerst die Trimmer längere Haare stutzen und im Anschluss der mit einer Scherfolie zusammenwirkende Scherblock die vorgekürzten Haare abschneidet.Razors are known in different forms. In addition to devices with rotating knives, above all, shaving heads with at least one shearing blade are known, relative to which a cutter is moved in an oscillating manner. The combination of a trimmer to shorten longer hair with a cutter for grasping and cutting the already shortened hair is also known in the art. In most cases, the trimmer is attached to one side of the shaver and can be extended or retracted as needed. Also known from the prior art are cutting heads, which have trimmers on both sides of a centrally located shaving head, so that when trimming, the trimmers first trim longer hairs and then cut off the pre-shortened hairs in the connection of the shearing foil cooperating with a shearing foil.

Die Druckschrift FR 1435860 zeigt einen Schneidkopf für Rasierapparate mit einem im wesentlichen U-förmigen Trimmer und einem zwischen den Schenkeln des U-förmigen Trimmers angeordneten, mit einer Scherfolie zusammenwirkenden Scherblock.The publication FR 1435860 shows a cutting head for razors with a substantially U-shaped trimmer and arranged between the legs of the U-shaped trimmer, with a shear foil cooperating cutter.

Ziel der vorliegenden Erfindung ist es, einen Schneidkopf aus dem Stand der Technik derart weiterzubilden, dass die Geräusche und insbesondere die Vibrationen eines derartigen Schneidkopfs reduziert werden und der Schneidkopf in einfacher Weise von einem Antrieb getrennt und somit in einfacher Weise gereinigt oder getauscht werden kann. Weiters ist es Aufgabe der Erfindung, dass die Kraft des Antriebsmotors mit möglichst wenigen Umlenkungen auf den Schneidkopf übertragen wird, damit dieser kleinbauend ist und kostengünstig herzustellen ist.The aim of the present invention is to develop a cutting head of the prior art such that the noise and in particular the vibrations of such a cutting head are reduced and the cutting head in a simple manner a drive separated and thus can be easily cleaned or replaced. Furthermore, it is an object of the invention that the force of the drive motor with as few deflections is transmitted to the cutting head, so this is physically small and inexpensive to manufacture.

Zur Lösung dieser Aufgabe ist der Schneidkopf der eingangs genannten Art erfindungsgemäß derart weitergebildet, dass das Schneidmesser und der wenigstens eine Scherblock zu gegensinniger Bewegung antreibbar sind. Durch das gegensinnige Antreiben des Schneidmessers und des Scherblocks können die auftretenden Vibrationen und die Geräuschentwicklung stark reduziert werden. Durch die gegensinnige Bewegung wirken die von den bewegten Teilen ausgehenden Kräfte in entgegengesetzte Richtungen und heben sich zumindest teilweise auf. Die Unwucht des Antriebs, die für die Vibrationen des Scherkopfes verantwortlich ist, wird reduziert. Durch eine Reduktion der Vibrationen wird gleichzeitig auch die Geräuschentwicklung verringert, da die Vibrationen dazu führen, dass der Scherblock an die dem Scherblock zugeordnete Scherfolie schlägt und somit klappert. Auch andere bewegliche Teile werden durch die Vibrationen bewegt und erzeugen dabei Geräusche.To solve this problem, the cutting head of the type mentioned is inventively further developed such that the cutting blade and the at least one cutter are driven to opposite directions movement. By oppositely driving the cutting blade and the cutter block, the vibrations and the noise can be greatly reduced. By opposing movement of the moving parts of the outgoing forces act in opposite directions and cancel each other at least partially. The imbalance of the drive, which is responsible for the vibrations of the shaving head, is reduced. By reducing the vibrations, the noise is also reduced at the same time, since the vibrations cause the cutter to hit the shear foil associated with the cutter and thus rattle. Other moving parts are moved by the vibrations and generate noise.

In bevorzugter Weise ist der Schneidkopf derart weitergebildet, dass das Schneidmesser im Wesentlichen U-förmig ausgebildet ist. Alternativ zu dieser Ausbildung kann der Trimmer zwei Schneidmesser aufweisen, welche an den Schenkeln des U-förmigen feststehenden Kammes geführt sind.Preferably, the cutting head is developed such that the cutting blade is formed substantially U-shaped. As an alternative to this embodiment, the trimmer may have two cutting blades, which are guided on the legs of the U-shaped fixed comb.

Generell ist anzumerken, dass im Rahmen der vorliegenden Erfindung ein Bezug auf die U-Form nicht notwendigerweise bedeutet, dass die Schenkel des U-förmigen Trimmers parallel sind. Wichtig ist hierbei lediglich, dass zwischen den beiden Trimmerschenkeln genügend Platz für die Anbringung eines Scherblockes bleibt. Ausbildungen, bei welchen die Schenkel der U-Form divergieren, konvergieren oder beide Schenkel in dieselbe Richtung geneigt ausgebildet sind, also ein einseitig geöffnetes Trapez oder eine einseitig geöffnete Raute bilden, sind im Rahmen der Erfindung ebenfalls möglich.Generally, it should be noted that in the context of the present invention, a reference to the U-shape does not necessarily mean that the legs of the U-shaped trimmer are parallel. It is only important that between the two trimmer legs enough space for the attachment of a cutter remains. Formations in which the legs of the U-shape diverge, converge or both legs are formed inclined in the same direction, thus forming a one-sided open trapezoid or a rhombus open on one side are also possible within the scope of the invention.

Zum Erzielen einer gegensinnigen Bewegung des Schneidmessers und des wenigstens einen Scherblocks ist der erfindungsgemäße Schneidkopf in bevorzugter Weise dahingehend weitergebildet, dass ein um eine Achse schwenkbarer Hebel mit einem Eingriff für einen oszillierenden Antrieb vorgesehen ist, wobei das Schneidmesser und der wenigstens eine Scherblock von entgegengesetzten Hebelarmen angetrieben sind. Der Antrieb der gegensinnig bewegten Teile erfolgt somit mit Hilfe eines einzigen Bauteils, sodass komplizierte Getriebe und Lenkeranordnungen vermieden werden können. Dies reduziert einerseits die Anzahl der beweglichen Teile und erhöht andererseits die Zuverlässigkeit eines derartigen Schneidkopfs.To achieve an opposite movement of the cutting blade and the at least one cutter block of the cutting head according to the invention is further developed in such a way that a pivotable about an axis lever is provided with an engagement for an oscillating drive, wherein the cutting blade and the at least one cutter of opposite lever arms are driven. The drive of the oppositely moving parts is thus carried out with the aid of a single component, so that complicated transmission and handlebar arrangements can be avoided. On the one hand, this reduces the number of moving parts and, on the other hand, increases the reliability of such a cutting head.

Zur Erhöhung der Schneidleistung ist der erfindungsgemäße Schneidkopf bevorzugt dahingehend weitergebildet, dass zwei Scherblöcke von demselben Hebelarm zu gleichsinniger Bewegung angetrieben sind.To increase the cutting performance of the cutting head according to the invention is preferably further developed to the effect that two shear blocks are driven by the same lever arm to the same direction movement.

In bevorzugter Weise ist der erfindungemäße Schneidkopf derart weitergebildet, dass die Massen, welche von den entgegengesetzten Hebelarmen angetrieben sind, im Wesentlichen gleich groß gewählt sind. Dadurch wird erreicht, dass Vibrationen weitestgehend vermieden werden. Zu diesem Zweck ist der erfindungsgemäße Schneidkopf in bevorzugter Weise derart weitergebildet, dass der Körper des Schneidmessers zur Anpassung seiner Masse Ausnehmungen aufweist. Durch das Vorsehen von Ausnehmungen kann die Masse des Schneidmessers, der im Vergleich zu dem wenigstens einen Scherblock üblicherweise eine größere Masse aufweist, gezielt reduziert werden, um an die Masse der wenigstens einen Scherblocks angepasst zu werden.Preferably, the inventive cutting head is developed such that the masses which are driven by the opposite lever arms, are chosen to be substantially equal. This ensures that vibrations are largely avoided. For this purpose, the cutting head according to the invention is developed in a preferred manner such that the body of the cutting blade has recesses for adjusting its mass. By providing recesses, the mass of the cutting blade, which usually has a larger mass compared to the at least one cutter, be selectively reduced to be adapted to the mass of at least one cutter.

Der Schneidkopf ist in bevorzugter Weise derart weitergebildet, dass der oder die Scherblöcke mit einer oder mehreren Scherfolien zusammenwirken.The cutting head is preferably developed in such a way that the one or more shear blocks cooperate with one or more shear sheets.

Dadurch, dass in bevorzugter Weise der wenigstens eine Scherblock an einem Schwingelement festgelegt ist, in das der Hebel eingreift, können konventionelle Scherblöcke verwendet werden, welche in bekannter Art und Weise an dem Schwingelement festgelegt werden können, wobei das Schwingelement aus einem kostengünstigeren Material hergestellt werden kann. Somit können insgesamt die Herstellungskosten reduziert werden. Das Schwingelement bietet außerdem die Möglichkeit eine Mehrzahl von Scherblöcken gemeinsam anzutreiben.By preferably fixing the at least one cutter to a vibrating member into which the lever engages, conventional shearblocks can be used which can be fixed to the vibrating member in a known manner, the vibrating member being made of a less expensive material can. Thus, the total manufacturing costs can be reduced. The vibrating element also offers the possibility of driving a plurality of shear blocks together.

In bevorzugter Weise ist der Schneidkopf derart weitergebildet, dass das Schneidmesser an einer Schwingbrücke festgelegt ist. Das Schneidmesser wird daher über die Schwingbrücke angetrieben, wobei die Schwingbrücke dazu dient, den Angriffspunkt für den Antrieb des Schneidmessers von der Ebene des Schneidmessers weiter nach unten zu verlagern, sodass der Antrieb mit Hilfe des dem Schersystem abgewandten Hebelarms des bereits beschriebenen Antriebshebel erfolgen kann. Die Schwingbrücke kann dabei ohne weiteres aus einem vom Material des Scheidmessers verschiedenen Material bestehen, insbesondere aus Kunststoff, wodurch sich die Herstellungskosten reduzieren lassen.Preferably, the cutting head is developed such that the cutting blade is fixed to a swing bridge. The cutting blade is therefore driven by the swing bridge, wherein the swinging bridge serves to further shift the point of application for the drive of the cutting blade from the plane of the cutting blade, so that the drive can be done by means of the lever arm of the already described drive lever, which faces away from the shear system. The swinging bridge can easily consist of a different material from the material of the cutting blade, in particular plastic, which can reduce the manufacturing cost.

Damit der für den Antrieb des wenigstens einen Seherblocks vorgesehene Hebelarm des Antriebshebels ungehindert zur Wirkung gelangen kann, ist in bevorzugter Weise vorgesehen, dass die Schwingbrücke eine Durchführung aufweist, durch welche der Hebel geführt ist. Der Hebel muss somit nicht aufwendig seitlich an der Schwingbrücke herumgeführt, sondern kann dann zentral gelagert werden. Dadurch wird die Möglichkeit eines im wesentlichen symmetrischen Aufbaus geschaffen, sodass die Massen auf beiden Seiten der Symmetrieebene, nämlich einer Längsmittelebene entsprechend Ebene VI-VI in Fig. 5, in einfacher Weise ausgeglichen werden. Durch diese Maßnahme können einseitige Belastungen des Hebels vermieden und dadurch die Lebensdauer des Hebels und damit des Schneidkopfs erhöht werden.In order for the lever arm of the drive lever provided for driving the at least one seer block to operate unhindered, it is preferably provided that the swing bridge has a passage through which the lever is guided. The lever does not have to be expensive on the side guided around the swing bridge, but can then be stored centrally. This creates the possibility of a substantially symmetrical structure, so that the masses on both sides of the plane of symmetry, namely a longitudinal center plane corresponding to plane VI-VI in Fig. 5 to be compensated in a simple way. By this measure, one-sided loads of the lever can be avoided and thereby the life of the lever and thus of the cutting head can be increased.

Zur Übertragung der Antriebskraft auf die Schwingbrücke ist der erfindungsgemäße Schneidkopf derart weitergebildet, dass die Schwingbrücke einen Steg aufweist, der zum Antrieb des Schneidmessers in ein Langloch des Hebels eingreift. Durch die Führung im Langloch kann die Schwingbewegung des Hebels in einfacher Weise in eine oszillierende Bewegung der Schwingbrücke umgesetzt werden.To transmit the driving force to the swing bridge of the cutting head according to the invention is further developed such that the swing bridge has a web which engages the drive of the cutting blade in a slot of the lever. Through the guide in the slot, the oscillatory movement of the lever can be implemented in a simple manner in an oscillating movement of the swing bridge.

Zum Antreiben der beweglichen Bauteile relativ zu den feststehenden Bauteilen ist der Schneidkopf in bevorzugter Weise derart weitergebildet, dass die Schwenkachse des Hebels in einem mit dem feststehenden Kamm verbundenen Bauteil gelagert ist.For driving the movable components relative to the stationary components of the cutting head in a preferred manner further developed such that the pivot axis of the lever is mounted in a connected to the fixed comb component.

Zur Festlegung des erfindungsgemäßen Schneidkopfs ist dieser in bevorzugter Weise dahingehend weitergebildet, dass der Schneidkopf Rastelemente zur Festlegung an einem Rasierapparat aufweist.To determine the cutting head according to the invention this is developed in a preferred manner to the effect that the cutting head has locking elements for attachment to a razor.

Die Erfindung betrifft weiters einen Rasierapparat mit einem erfindungsgemäßen Schneidkopf.The invention further relates to a razor with a cutting head according to the invention.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. In dieser zeigt Fig.1 eine Explosionsdarstellung des erfindungsgemäßen Schneidkopfes, Fig.2 den zusammengebauten erfindungsgemäßen Schneidkopf in einer perspektivischen Ansicht, Fig.3 eine Seitenansicht des erfindungsgemäßen Schneidkopfes, Fig.4 einen Schnitt nach IV-IV der Fig.3, Fig.5 eine Ansicht der schmalen Seite des erfindungsgemäßen Schneidkopfes, Fig.6 einen Schnitt nach VI-VI der Fig.5 und Fig.7 einen Schnitt entsprechend der Fig. 6 in rechter Exzenter-Stellung und abgenommenem Deckrahmen.The invention will be explained in more detail with reference to an embodiment shown in the drawing. In this shows Fig.1 an exploded view of the cutting head according to the invention, Fig.2 the assembled invention Cutting head in a perspective view, Figure 3 a side view of the cutting head according to the invention, Figure 4 a section after IV-IV of Figure 3 . Figure 5 a view of the narrow side of the cutting head according to the invention, Figure 6 a section according to VI-VI of Figure 5 and Figure 7 a cut according to the Fig. 6 in right eccentric position and removed cover frame.

In Fig.1 ist ein erfindungsgemäßer Schneidkopf 1 in isometrischer Ansicht zerlegt dargestellt. Der Schneidkopf 1 umfasst einen Deckrahmen 2, Scherfolien 3, die mit Scherblöcken 4 zusammenwirken, wobei die Scherblöcke 4 an einem Schwingelement 5 festgelegt sind. Weiters umfasst der Schneidkopf 1 ein bewegliches U-förmiges Schneidmesser 6, welches mit einem feststehenden U-förmigen Kamm 7 zusammenwirkt und über die Schwingbrücke 8 vom Hebel 9 angetrieben wird. Der Hebel 9 ist mit Hilfe eines Bolzens 10 im Grundrahmen 11 festgelegt, wobei der Grundrahmen den ortsfesten Kamm 7 trägt. Mit 12 ist ein Exzenter bezeichnet, welcher jedoch nicht mehr Teil des Schneidkopfes 1 ist. Die Ausnehmungen 13 im Schneidmesser 6 dienen der Anpassung der Massen, die von den Hebelarmen 14, 15 des Hebels 9 angetrieben werden. Das Schwingelement 5 weist an seiner Oberseite federnde Polster 16 auf, die die Scherblöcke 4 gegen die Scherfolie 3 pressen und in Anlage halten, und weist an seiner Unterseite Führungsnasen 17 auf, die an der Unterseite des Kammes 7 gleitend geführt sind.In Fig.1 an inventive cutting head 1 is shown disassembled in an isometric view. The cutting head 1 comprises a cover frame 2, shear sheets 3, which cooperate with shear blocks 4, wherein the shear blocks 4 are fixed to a vibrating element 5. Furthermore, the cutting head 1 comprises a movable U-shaped cutting blade 6, which cooperates with a fixed U-shaped comb 7 and is driven by the lever 9 via the oscillating bridge 8. The lever 9 is fixed by means of a bolt 10 in the base frame 11, wherein the base frame carries the stationary comb 7. With 12 an eccentric is referred to, but which is no longer part of the cutting head 1. The recesses 13 in the cutting blade 6 are used to adjust the masses, which are driven by the lever arms 14, 15 of the lever 9. The oscillating element 5 has on its upper side resilient pad 16, which press the shear blocks 4 against the foil 3 and hold in abutment, and has on its underside guide lugs 17, which are guided on the underside of the comb 7 slidably.

Im zusammengesetzten Zustand verläuft der Bolzen 10 durch die Bohrungen 20 im Grundrahmen 11, durch die Fenster 21 in der Schwingbrücke 8 und durch die Bohrung 19 des Hebel 9 und bildet die Schwenkachse des Hebels 9. Am antriebsseitigen Hebelarm 14 befindet sich ein Eingriff 22 für einen Exzenter 12, welcher sich nach oben verjüngt und in ein Langloch 23 übergeht. In diesem Langloch 23 ist der Steg 24 der Schwingbrücke 8 geführt. Am Ende des abtriebsseitigen Hebelarmes 15 befindet sich ein Antriebskopf 18.In the assembled state, the bolt 10 passes through the holes 20 in the base frame 11, through the window 21 in the swinging bridge 8 and through the bore 19 of the lever 9 and forms the pivot axis of the lever 9. On the drive side lever arm 14 is an engagement 22 for a Eccentric 12, which tapers upwards and merges into a slot 23. In this slot 23, the web 24 of the swing bridge 8 is guided. At the end of the output side lever arm 15 is a drive head 18th

In Fig. 2 ist eine isometrische Ansicht des erfindungsgemäßen Schneidkopfes 6 gezeigt, wobei die gleichen Bezugszeichen die gleichen Bauteile bezeichnen.In Fig. 2 an isometric view of the cutting head 6 according to the invention is shown, wherein the same reference numerals designate the same components.

In Fig.4 ist gut ersichtlich wie der Steg 24 der Schwingbrücke 8 im Langloch 23 geführt ist. Ebenso ist gut ersichtlich, dass der Bolzen 10 durch die Fenster 21 der Schwingbrücke 8 geführt ist.In Figure 4 is clearly visible as the web 24 of the swing bridge 8 is guided in the slot 23. It is also readily apparent that the bolt 10 is guided through the window 21 of the oscillating bridge 8.

In Fig.6 ist die Lagerung des Stegs 24 im Langloch 23 des Hebels 9 ersichtlich. Zusätzlich ist in Fig.6 der Eingriff des Schwingelements 5, in welchen der Antriebskopf 18 des Hebels 9 eingreift, mit 25'bezeichnet.In Figure 6 the storage of the web 24 in the slot 23 of the lever 9 can be seen. Additionally is in Figure 6 the engagement of the oscillating element 5, in which the drive head 18 of the lever 9 engages, designated by 25 '.

Fig.7 ist eine ähnliche Ansicht wie Fig.6, jedoch ist der Deckrahmen 2 abgenommen und der Antriebshebel 9 ist in einer ausgelenkten Position, sodass die Funktionsweise des gegensinnigen Antriebs des Scheidmessers und des Scherblockes nachvollzogen werden kann. Der Hebel 9 ist um die vom Bolzen 10 gebildete Achse verschwenkt und der Hebelarm 14 ist nach rechts ausgelenkt und Hebelarm 15 nach links. Dadurch, dass der Steg 24 und damit die Schwingbrücke 8 am Hebelarm 14 angelenkt sind ist, befindet sich das Schneidmesser 6 in einer nach rechts verschobenen Position. Die Scherblöcke 4 sind über das Schwingelement 5 mit dem Antriebskopf 18 verbunden, der sich am Hebelarm 15 befindet, wodurch sich die Scherblöcke 4 in einer nach links ausgelenkten Position befinden. Es ist offensichtlich, dass die Scherblöcke 4 sich immer gegensinnig zu dem Schneidmesser 6 bewegen. Wird die Distanz zwischen Antriebskopf 18 und Bolzen 10 und die Distanz zwischen Steg 24 und Bolzen 10 im zusammengebauten Zustand und die Massen ebenfalls gleich groß gewählt, sind die Kräfte an beiden Hebelarmen 14, 15 gleich groß, wodurch zusätzlich einseitige Belastungen des Hebels 9 vermieden werden können. Figure 7 is a similar view as Figure 6 However, the cover frame 2 is removed and the drive lever 9 is in a deflected position, so that the operation of the opposing drive of the cutting blade and the cutter block can be understood. The lever 9 is pivoted about the axis formed by the bolt 10 and the lever arm 14 is deflected to the right and lever arm 15 to the left. Characterized in that the web 24 and thus the swinging bridge 8 are hinged to the lever arm 14, the cutting blade 6 is in a shifted to the right position. The shear blocks 4 are connected via the oscillating element 5 with the drive head 18, which is located on the lever arm 15, whereby the shear blocks 4 are in a deflected to the left position. It is obvious that the shear blocks 4 always move in opposite directions to the cutting blade 6. If the distance between drive head 18 and pin 10 and the distance between web 24 and pin 10 in the assembled state and the masses are also the same size, are the forces on both lever arms 14, 15 the same size, which in addition one-sided loads of the lever 9 can be avoided.

Claims (14)

  1. A cutting head (1), in particular for shavers, including a substantially U-shaped trimmer having a fixed comb (7) and at least one cutting blade (6) drivable to oscillate relative to said comb (7) and at least one shaving block (4) arranged between the legs of the U-shaped trimmer and drivable to oscillate, characterized in that the cutting blade (6) and the at least one shaving block (4) are drivable to a movement in opposite directions.
  2. A cutting head according to claim 1, characterized in that the cutting blade (6) is substantially U-shaped.
  3. A cutting head according to claim 1 or 2, characterized in that a lever (9) that is pivotable about an axle and comprises a mesh (22) for an oscillating drive (12) is provided, wherein the cutting blade (6) and the at least one shaving block (4) are driven by opposing lever arms (14, 15).
  4. A cutting head according to claim 1, 2 or 3, characterized in that two shaving blocks (4) are driven to a movement in the same direction by the same lever arm (15).
  5. A cutting head according to any one of the preceding claims, characterized in that the masses that are driven by the opposing lever arms (14, 15) are selected to be substantially equally large.
  6. A cutting head according to any one of the preceding claims, characterized in that the body of the cutting blade (6) comprises recesses (13) for adaptation of its mass.
  7. A cutting head according to any one of the preceding claims, characterized in that the at least one shaving block (4) cooperates with one or several shaving foils (3).
  8. A cutting head according to any one of the preceding claims, characterized in that the at least one shaving block (4) is fixed to an oscillating element (5) engaged by the lever (9).
  9. A cutting head according to any one of the preceding claims, characterized in that the cutting blade (6) is fixed to an oscillating bridge (8).
  10. A cutting head according to any one of the preceding claims, characterized in that the oscillating bridge (8) has a passage through which the lever (9) passes.
  11. A cutting head according to any one of the preceding claims, characterized in that the oscillating bridge (8) comprises a web (24) engaging in an oblong hole (23) of the lever (9) for driving the cutting blade (6).
  12. A cutting head according to any one of the preceding claims, characterized in that the pivot axle of the lever (9) is mounted in a component connected to the fixed comb (7).
  13. A cutting head according to any one of the preceding claims, characterized in that the cutting head (1) comprises snap-in elements for attachment to a shaver.
  14. A shaver comprising a cutting head (1) according to any one of the preceding claims.
EP11704169.9A 2010-02-02 2011-02-01 Cutting head having a trimmer and blade Active EP2531329B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE11704169T DE11704169T8 (en) 2010-02-02 2011-02-01 CUTTING HEAD WITH TRIMMER AND SCISSOR BLOCK

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0006110U AT11678U1 (en) 2010-02-02 2010-02-02 CUTTING HEAD WITH TRIMMER AND SCISSOR BLOCK
PCT/AT2011/000055 WO2011094782A1 (en) 2010-02-02 2011-02-01 Cutting head having a trimmer and blade

Publications (2)

Publication Number Publication Date
EP2531329A1 EP2531329A1 (en) 2012-12-12
EP2531329B1 true EP2531329B1 (en) 2014-06-18

Family

ID=43426174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11704169.9A Active EP2531329B1 (en) 2010-02-02 2011-02-01 Cutting head having a trimmer and blade

Country Status (5)

Country Link
EP (1) EP2531329B1 (en)
CN (1) CN102753314B (en)
AT (1) AT11678U1 (en)
DE (1) DE11704169T8 (en)
WO (1) WO2011094782A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6478772B2 (en) * 2015-04-03 2019-03-06 マクセルホールディングス株式会社 Electric razor
CN106042014A (en) * 2016-07-11 2016-10-26 佛山市顺德区雷泰电器制造有限公司 Three-shaver-head integrated cutting type floating shaver head and assembling process thereof
CN106003162B (en) * 2016-07-11 2018-08-21 佛山市顺德区雷泰电器制造有限公司 A kind of interior cutter head assembly on shaver
CN106042010A (en) * 2016-07-11 2016-10-26 佛山市顺德区雷泰电器制造有限公司 Shaver head and production technique for same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB517736A (en) * 1938-07-29 1940-02-07 Max Amsler Improvements in dry shaving machines
NL100415C (en) * 1955-04-20
DE1052266B (en) * 1955-11-21 1959-03-05 Siemens Ag Electric dry shaver with a shaving head that can be removed from the body for a back and forth cutting movement
FR1435860A (en) 1965-01-08 1966-04-22 Simultaneous Double Acting Dry Shaver Cutting Head
US3365796A (en) * 1965-04-20 1968-01-30 Sperry Rand Corp Electric dry shaver
AT349357B (en) * 1977-05-03 1979-04-10 Philips Nv SHEARING HEAD FOR DRY SHAVERS
US4723362A (en) * 1986-08-25 1988-02-09 Boerger Daniel A Drive device for clippers
US4805300A (en) * 1986-09-17 1989-02-21 Remington Products, Inc. Electric dry shaver having an improved drive arrangement
JP4653371B2 (en) * 2000-01-14 2011-03-16 パイアー インターナショナル テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト Electric shaver
JP2004350824A (en) * 2003-05-28 2004-12-16 Izumi Products Co Outer cutter blade for electric shaver, and electric shaver
EP1644162B1 (en) * 2003-07-04 2008-05-14 Koninklijke Philips Electronics N.V. Shaving apparatus with a pivotably mounted shaving head
US7690117B2 (en) * 2003-08-27 2010-04-06 Koninklijke Philips Electronics N.V. Shaving apparatus with a short-hair cutting device and a long-hair cutting device

Also Published As

Publication number Publication date
CN102753314A (en) 2012-10-24
WO2011094782A1 (en) 2011-08-11
CN102753314B (en) 2016-04-06
EP2531329A1 (en) 2012-12-12
AT11678U1 (en) 2011-03-15
DE11704169T1 (en) 2013-03-28
DE11704169T8 (en) 2013-04-25

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