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EP1370397A1 - Shearing system for a dry shaver - Google Patents

Shearing system for a dry shaver

Info

Publication number
EP1370397A1
EP1370397A1 EP02702346A EP02702346A EP1370397A1 EP 1370397 A1 EP1370397 A1 EP 1370397A1 EP 02702346 A EP02702346 A EP 02702346A EP 02702346 A EP02702346 A EP 02702346A EP 1370397 A1 EP1370397 A1 EP 1370397A1
Authority
EP
European Patent Office
Prior art keywords
cutting
teeth
cutting elements
shaving
long hair
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
Application number
EP02702346A
Other languages
German (de)
French (fr)
Other versions
EP1370397B1 (en
Inventor
Raoul Bader
Matthias Gradl
Sebastian Hottenrott
Peter Junk
Christof Kleemann
Michael Meiss
Uwe Neumann
Michael Odemer
Andreas Reklau
Jens STÖRKEL
Petri Toivanen
Till Winkler
Jürgen Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP1370397A1 publication Critical patent/EP1370397A1/en
Application granted granted Critical
Publication of EP1370397B1 publication Critical patent/EP1370397B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a shaving system for a dry shaver according to the preamble of claim 1.
  • Such a shaving system is known from DE 43 12 060 C1, the center cutter of which has an upper knife with threading elements which are aligned parallel to the skin to be shaved.
  • a shaving head can achieve very good shaving results in practical use while at the same time being very gentle on the skin, under certain circumstances there may be a delayed threading when shaving beard hair lying directly on the skin, so that this area of the skin is repeatedly used with the razor must be run over to achieve an optimal shaving result.
  • a shaving head according to DE-OS 15 53 659 which shows two long hair cutters arranged between two short hair cutting systems, each of which is folded out in the opposite direction of rotation by an angle of approximately 45 ° from the longitudinal plane of the razor.
  • the invention is therefore based on the object of creating a skin-friendly shaving system with a central cutter, the cutting properties of which ensure optimum cutting performance even when shaving beard hairs lying directly against the skin.
  • the comb-shaped cutting elements of the long-hair trimmer which are aligned perpendicular to the skin, allow the skin to be unclamped and the whiskers to be pre-combed. Beard hairs sticking out of the skin are pre-combed by the long hair trimmer and folded over towards the skin. The skin is simultaneously braced by contacting the comb-shaped cutting elements.
  • the alignment of the cutting elements according to the invention has no negative effects on the protection of the skin during shaving.
  • a preferred embodiment of the shaving system provides that the long-hair cutter consists of three cutting elements, the middle cutting element being movable relative to the two outer cutting elements, which enables a particularly gentle to the skin and regardless of the shaving direction, a particularly thorough shaving.
  • the cutting blade thus cuts between the two cutting combs on both sides.
  • This symmetrical design ensures that both the pre-combing of the whiskers as well as the tensioning of the skin is always done with a stationary, i.e. non-driven cutting comb, with the moving cutting element (the cutting blade) now being protected between the two cutting combs.
  • the rows of cutting teeth of the cutting elements are advantageously aligned parallel to one another, but the cutting element planes are arranged at an acute angle to one another, which results in a friction-reducing contact line between the cutting elements.
  • the angle should be less than 5 °, preferably 2-3 °.
  • the tooth base of at least one of the cutting tooth rows is lowered relative to the tooth base and at least one further tooth cutting row.
  • a further advantageous embodiment of the invention provides that mutually facing side surfaces of the cutting elements are provided with a large number of recesses and / or openings.
  • this design enables the absorption of lubricants to reduce friction, and, in addition, these profiled side surfaces can be used to grind and thus remove hair that has come between these side surfaces by the relative movement between the cutting elements. This prevents bending or unfolding of the cutting elements in the cutting area.
  • adjacent rows of cutting teeth have a different pitch.
  • FIG. 3 shows a side view of the long hair trimmer according to FIG. 2 in the assembled state
  • Fig. 4 shows a partially assembled long-hair cutter
  • Fig. 5 is a perspective view of a special embodiment of the central
  • Fig. 1 shows a cross section through an inventive shaving system in the form of a razor head in the form of an interchangeable frame 1, which can be connected to the housing of a dry shaver in a manner known per se.
  • the interchangeable frame 1 carries two U-shaped curved shaving foils 2, which can be driven in an oscillating manner together with an associated lower knife 3, which can be driven by an appropriate drive of the dry shaver, for example in the form of an eccentric or a crank drive driven by an electric motor provided in the housing of the dry shaver , which form two shaving units for the short haircut.
  • the lower knives 3 are designed in a manner known per se as so-called knife tube blocks, which are produced from a tubular steel element which has been machined through a plurality of transverse slots which extend approximately over half the diameter in such a way that the remaining webs form sharp-edged blades. Coupling elements are attached to the side of the lower knives 3 facing away from the shaving foil 2, which in the assembled state bring the lower knives into engagement with the drive.
  • the two shaving foils 2 are each fastened with their legs pointing downward to one of two outer webs 4 and one of two inner webs 5 of the interchangeable frame 1 of the shaving head symmetrical to the central plane A.
  • the outer and inner webs 4 and 5 are connected to one another by side sections 6 of the interchangeable frame 1.
  • the long hair cutter 10 is arranged centrally, which is connected to the side sections 6 of the change frame 1 by means of a clip-in connection.
  • the cutting blade 12 and the two cutting combs 13 and 14 are made of sheet steel, while the coupling element 11 is made of plastic.
  • the cutting combs 13 and 14 are each connected to a plastic carrier 15 and 16, respectively.
  • the two assemblies composed of cutting comb 13 and 14 and plastic carrier 15 and 16 are identical, so that they can be used twice per long-hair trimmer 10, thereby reducing the number of parts used. Because of this identical construction, the description of individual elements of this assembly naturally also applies to the corresponding second assembly.
  • the plastic carriers 15, 16 On the sides facing away from the cutting combs 13, 14, the plastic carriers 15, 16 have recesses 17 for receiving the curved ends 18 of the clamps 19, which press the two outer cutting elements against the central cutting element under elastic pretension.
  • the brackets 19 enable both the generation of a prestressing force and a preassembly of the long hair trimmer.
  • the cutting blade 12 has a tooth row 20 pointing upwards and in the assembled state outward from the shaving head, the teeth 21 of which are directed away from the coupling element 11.
  • the cutting blade 12 is also provided with two elongated holes 22 which extend parallel to the row of teeth 20. These slots 22 are lined with an edge 23 made of plastic.
  • the cutting blade 12 is guided on guide bolts 24 by means of the elongated holes 22, so that only a limited displacement parallel to the row of teeth 20 is possible.
  • the guide bolts 24 have flat running surfaces 25, which extend in the same direction as the elongated holes 22, and two semicircular end regions 26.
  • Each plastic carrier 15, 16 has such a guide bolt 24, which extends through the corresponding cutting comb 13, 14. After assembly, it engages in a corresponding recess 27 in the complementary plastic carrier.
  • Star-shaped clamping pin 28 which extends in the same direction as the guide bolt 24 and is pressed into the bore 29 of the plastic carrier, is used for a precisely fitting assembly and fastening of the two plastic carriers 15 and 16 to one another.
  • the cutting combs 13, 14 have through holes into which rivet heads 30, which are integrally formed on the plastic carrier 15, 16, protrude.
  • the plastic carrier 15, 16 can also be molded directly onto the cutting combs 13, 14 by injection molding.
  • each plastic carrier has a cover 31, which closes the space between the two shaving foils 2 after the long hair cutter has been installed, and an elastically deformable latching hook 32, which serves to lock the fully assembled long hair cutter to the two side sections 6 of the change frame 1.
  • the surface of the cutting comb 13 and 14 facing the cutting blade 12 is provided with a large number of recesses 33, on the one hand to receive lubricants for reducing friction; on the other hand, hair dust which has reached between these contact surfaces is also very quickly ground thereby, thereby preventing a gap in the cutting area or bending of the cutting combs or the blade by a whisker reaching this contact area.
  • FIG. 5 shows a cutting blade 12, which has a plurality of recesses 40, which can also be designed as openings, on the two surfaces facing the assigned cutting combs 13, 14.
  • the teeth of the row of teeth 20 are provided with openings or recesses 41, which increases the effect just mentioned. Both the recesses and the openings are produced using an etching process.
  • the rows of teeth 34 of the cutting combs 13, 14 are formed with a significantly larger tooth height than the row of teeth 20 of the cutting blade 12.
  • the tooth tips 35 of the tooth rows 34 protrude from the tooth tips of the tooth row 20, whereby particularly gentle combing of the beard to be shaved and straightening of possible beard hair lying flat on the skin is achieved with maximum protection of the skin.
  • This difference in height of the tooth tips is particularly clearly shown in FIG. 4.
  • the tooth base of the rows of teeth 34 of the cutting combs 13, 14 is clearly, ie approximately 1 to 1.5 mm lower than the tooth base of the row of teeth 20 of the cutting blade.
  • the pitch of the row of teeth 20 is somewhat larger than the pitch of the row of teeth 34, as a result of which jamming between the cutting blade 12 and the cutting combs 15, 16 is prevented. At the same time, this difference in the pitch ensures that not all cutting events along the rows of teeth take place at the same time, which results in a rounder run.
  • Fig. 1 it can be seen that the cutting blade 12 is oriented such that it comes to lie in the central plane A.
  • the cutting combs 13, 14 arranged laterally for this purpose are provided in an embodiment of the long-hair trimmer 10 in such a way that they form an acute angle that opens downwards.
  • the deviation from the central plane A is only a few degrees.
  • This slight inclination of the cutting combs 13, 14 relative to the cutting blade 12 has the result that there is only one contact line between the metal parts sliding on one another, which significantly reduces the friction that occurs compared to a flat support.
  • combs 36 upstream of the tooth rows 34 with a rounded contour and with a pitch identical to the tooth rows 34 are formed on the plastic carriers 15, 16.
  • the teeth of the combs 36 are turned outward in relation to the teeth of the row of teeth 34 by an angle of approximately 45 °, that is, according to the view shown in FIG. 3 to the front or to the rear ,
  • the teeth of the rows of teeth 34 of the cutting combs 13, 14 and those of the upstream combs 36 are aligned with one another, so that in the view shown there the teeth associated with the cutting comb 13 including the teeth Teeth of the combs 36 are hidden by the teeth assigned to the cutting comb 14.
  • Another embodiment of the long hair trimmer, not shown in the drawing, is characterized in that an offset is provided between the teeth mentioned. The maximum offset would thus be half the pitch of the rows of teeth 34.
  • This offset ensures that, with the highest probability, no hair passes the long-hair trimmer when the skin to be shaved is passed over, without being acted upon by one of the combs 36 or the cutting combs 13, 14 ,
  • This measure ensures that, in particular, all hair lying flat on the skin and oriented in the shaving direction also meets an obstacle, that is to say a comb tooth, as a result of which they can be lifted and cut.
  • short hair is first shaved by means of the short hair cutting system, which consists of the shaving foil and the associated lower knife 3, while longer hair, which may also lie flat on the skin, is aligned in the shaving direction by the long hair cutter 10 and be cut between the cutting combs 13, 14 and the cutting blade 12.
  • the short hair trimmer system following the long hair trimmer 10 then thoroughly shaves off the beard hair shortened by the long hair trimmer.

Landscapes

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

Abstract

The invention relates to a shearing system for a dry shaver, consisting of at least one long hair cutter (10) arranged between the shearing units intended for cutting short hairs, wherein the shearing units for cutting short hairs consist of a top and a bottom blade (2, 3) that are moved relative to one another by a drive mechanism. The long hair cutter is formed by at least two cutting elements (12, 13, 14) which can be moved relative to one another and are arranged next to one another. In order to provide optimum skin protection and cutting quality, the cutting elements (12, 13, 14) of the long hair cutter are configured in the shape of a comb. The rows of cutting teeth (20, 34) formed by teeth are aligned substantially perpendicular and pointing to the skin that is to be shaved.

Description

Schersystem für einen Trockenrasierer Shaving system for a dry shaver
Die Erfindung betrifft ein Schersystem für einen Trockenrasierer nach dem Oberbegriff des Patentanspruches 1.The invention relates to a shaving system for a dry shaver according to the preamble of claim 1.
Ein derartiges Schersystem ist aus der DE 43 12 060 C1 bekannt, dessen Mittelschneider ein Obermesser mit Einfädelelementen aufweist, welche parallel zu der zu rasierenden Haut ausgerichtet sind. Zwar lassen sich mit einem derartigen Scherkopf in der praktischen Anwendung sehr gute Rasierergebnisse bei gleichzeitig sehr hoher Hautschonung erzielen, jedoch kann es unter Umständen bei der Rasur von direkt an der Haut anliegenden Barthaaren zu einem verzögerten Einfädeln kommen, so daß diese Hautstelle mehrmals mit dem Rasierapparat überfahren werden muß, um ein optimales Rasierergebnis zu erzielen.Such a shaving system is known from DE 43 12 060 C1, the center cutter of which has an upper knife with threading elements which are aligned parallel to the skin to be shaved. Although such a shaving head can achieve very good shaving results in practical use while at the same time being very gentle on the skin, under certain circumstances there may be a delayed threading when shaving beard hair lying directly on the skin, so that this area of the skin is repeatedly used with the razor must be run over to achieve an optimal shaving result.
Das gleiche gilt für einen Scherkopf gemäß der DE-OS 15 53 659, welche zwei zwischen zwei Kurzhaarschneidsystemen angeordnete Langhaarschneider zeigt, die jeweils in einander entgegengesetzte Drehrichtung um einen Winkel von ca. 45° aus der Längsebene des Rasierer herausgeklappt sind.The same applies to a shaving head according to DE-OS 15 53 659, which shows two long hair cutters arranged between two short hair cutting systems, each of which is folded out in the opposite direction of rotation by an angle of approximately 45 ° from the longitudinal plane of the razor.
Der Erfindung liegt daher die Aufgabe zugrunde, ein hautschonend arbeitendes Schersystem mit Mittelschneider zu schaffen, dessen Schneideigenschaften auch bei der Rasur von direkt an der Haut anliegenden Barthaaren eine optimale Schneidleistung sicherstellt.The invention is therefore based on the object of creating a skin-friendly shaving system with a central cutter, the cutting properties of which ensure optimum cutting performance even when shaving beard hairs lying directly against the skin.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.
Die kammförmig ausgebildeten und senkrecht auf die Haut ausgerichteten Schneidelemente des Langhaarschneiders ermöglichen sowohl ein Abspannen der Haut sowie ein Vorkämmen der zu schneidenden Barthaare. Von der Haut abstehende Barthaare werden durch den Langhaarschneider vorgekämmt und in Richtung auf die Haut umgelegt. Die Haut wird dabei durch das Kontaktieren mittels der kammförmigen Schneidelemente gleichzeitig abgespannt. Überraschenderweise hat sich in praktischen Rasierversuchen gezeigt, daß die erfindungsgemäße Ausrichtung der Schneidelemente keine negativen Auswirkungen auf die Hautschonung während der Rasur hat. Eine bevorzugte Ausführungsform des Schersystems sieht vor, daß der Langhaarschneider aus drei Schneidelementen besteht, wobei das mittlere Schneidelement relativ zu den beiden äußeren Schneidelementen bewegbar ist, wodurch ein besonders hautschonendes und unabhängig von der Rasierrichtung besonders gründliches Rasieren ermöglicht wird. Die Schneidklinge schneidet somit beidseitig zwischen den beiden Schneidkämmen. Diese symmetrische Ausführung stellt sicher, daß sowohl das Vorkämmen der Barthaare als auch das Abspannen der Haut stets mit einem ruhenden, also nicht angetriebenen Schneidkamm erfolgt, wobei das bewegte Schneidelemente (die Schneidklinge) jetzt geschützt zwischen den beiden Schneidkämmen angeordnet ist.The comb-shaped cutting elements of the long-hair trimmer, which are aligned perpendicular to the skin, allow the skin to be unclamped and the whiskers to be pre-combed. Beard hairs sticking out of the skin are pre-combed by the long hair trimmer and folded over towards the skin. The skin is simultaneously braced by contacting the comb-shaped cutting elements. Surprisingly, practical shaving experiments have shown that the alignment of the cutting elements according to the invention has no negative effects on the protection of the skin during shaving. A preferred embodiment of the shaving system provides that the long-hair cutter consists of three cutting elements, the middle cutting element being movable relative to the two outer cutting elements, which enables a particularly gentle to the skin and regardless of the shaving direction, a particularly thorough shaving. The cutting blade thus cuts between the two cutting combs on both sides. This symmetrical design ensures that both the pre-combing of the whiskers as well as the tensioning of the skin is always done with a stationary, i.e. non-driven cutting comb, with the moving cutting element (the cutting blade) now being protected between the two cutting combs.
Vorteilhafterweise werden die Schneidzahnreihen der Schneidelemente parallel zueinander ausgerichtet, die Schneidelementeebenen werden jedoch in einem spitzen Winkel zueinander angeordnet, wodurch sich eine reibungsmindernd wirkende Berührungslinie zwischen den Schneidelementen ergibt. Der Winkel sollte dabei kleiner als 5°, vorzugsweise 2-3° betragen.The rows of cutting teeth of the cutting elements are advantageously aligned parallel to one another, but the cutting element planes are arranged at an acute angle to one another, which results in a friction-reducing contact line between the cutting elements. The angle should be less than 5 °, preferably 2-3 °.
Besonders positiv auf das Einfädelverhalten von Barthaaren wirkt es sich aus, wenn die Zahnspitzen eines der Schneidelemente gegenüber den Zahnspitzen mindestens eines weiteren Schneidelementes in Bezug auf die zu rasierende Hautfläche abgesenkt ist. Um eine optimale Hautschonung und ein bestmögliches Einfädelverhalten der Barthaare unabhängig von der Rasierrichtung zu erhalten, ist es von Vorteil, wenn das mittlere Schneidelement gegenüber den äußeren Schneidelementen abgesenkt ist.It has a particularly positive effect on the threading behavior of whiskers if the tooth tips of one of the cutting elements are lowered relative to the tooth tips of at least one other cutting element with respect to the skin surface to be shaved. In order to obtain optimal skin protection and the best possible threading behavior of the whiskers regardless of the shaving direction, it is advantageous if the middle cutting element is lowered compared to the outer cutting elements.
Um abgeschnittene oder eingefädelte Haare möglichst schnell aus dem Schneidbereich zu entfernen, ist es von Vorteil, wenn der Zahngrund mindestens eines der Schneidzahnreihen gegenüber dem Zahngrund und mindestens einer weiteren Zahnschneidreihe abgesenkt ist.In order to remove cut or threaded hair from the cutting area as quickly as possible, it is advantageous if the tooth base of at least one of the cutting tooth rows is lowered relative to the tooth base and at least one further tooth cutting row.
Eine weitere vorteilhafte Ausführungsform der Erfindung sieht vor, daß einander zugewandte Seitenflächen der Schneidelemente mit einer Vielzahl von Ausnehmungen und/oder Durchbrüchen versehen sind. Diese Ausführung ermöglicht zum einen die Aufnahme von Schmiermitteln zur Reibungsverringerung, darüber hinaus kann durch diese profilierten Seitenflächen ein zwischen diese Seitenflächen gelangtes Haar durch die Relativbewegung zwischen den Schneidelementen zerrieben und damit entfernt werden. Dadurch läßt sich ein Aufbiegen oder Aufklappen der Schneidelemente im Schneidbereich verhindern. Um ein Verhaken der Schneidzähne zu vermeiden und ein Verteilen der Schneidereignisse entlang der Schneidzahnreihen zu erreichen, ist bei einer weiteren bevorzugten Ausführungsform der Erfindung vorgesehen, daß benachbarte Schneidzahnreihen eine unterschiedliche Teilung aufweisen.A further advantageous embodiment of the invention provides that mutually facing side surfaces of the cutting elements are provided with a large number of recesses and / or openings. On the one hand, this design enables the absorption of lubricants to reduce friction, and, in addition, these profiled side surfaces can be used to grind and thus remove hair that has come between these side surfaces by the relative movement between the cutting elements. This prevents bending or unfolding of the cutting elements in the cutting area. In order to prevent the cutting teeth from getting caught and to distribute the cutting events along the rows of cutting teeth, it is provided in a further preferred embodiment of the invention that adjacent rows of cutting teeth have a different pitch.
Weitere Ziele, Merkmale, Vorteile und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung der Ausführungsbeispiele. Dabei bilden alle beschriebenen oder bildlich dargestellten Merkmale für sich oder in beliebiger Kombination den Gegenstand vorliegender Erfindung, auch unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung.Further objectives, features, advantages and possible uses of the present invention result from the following description of the exemplary embodiments. All of the features described or depicted, individually or in any combination, form the subject matter of the present invention, regardless of their summary in the claims or their relationship.
Hierzu zeigt:This shows:
Fig. 1 einen Querschnitt durch ein erfindungsgemäßes Schersystem,1 shows a cross section through an inventive shear system,
Fig. 2 eine Explosionsdarstellung des erfindungsgemäßen Mittelschneiders,2 is an exploded view of the center cutter according to the invention,
Fig. 3 eine Seitenansicht des Langhaarschneiders gemäß Fig. 2 in montiertem Zustand,3 shows a side view of the long hair trimmer according to FIG. 2 in the assembled state,
Fig. 4 zeigt einen teilmontierten Langhaarschπeider undFig. 4 shows a partially assembled long-hair cutter and
Fig. 5 eine perspektivische Darstellung einer speziellen Ausführungsform der zentralenFig. 5 is a perspective view of a special embodiment of the central
Schneidklinge.Cutting blade.
Fig. 1 zeigt einen Querschnitt durch ein erfinderisches Schersystem in Form eines Rasiererscherkopfes in Form eines Wechselrahmens 1 , der in an sich bekannter Weise mit dem Gehäuse eines Trockenrasierers verbunden werden kann. Der Wechselrahmen 1 trägt zwei U- förmig gewölbte Scherfolien 2, die zusammen mit jeweils einem zugeordneten Untermesser 3, welches durch einen entsprechenden Antrieb des Trockenrasierers, beispielsweise in Form eines von einem im Gehäuse des Trockenrasierers vorgesehenen Elektromotors angetriebenen Exzenters oder eines Kurbelantriebes, oszillierend antreibbar ist, die beiden Schereinheiten für den Kurzhaarschnitt bilden. Die Untermesser 3 sind in an sich bekannter Weise als sogenannte Messerrohrblöcke ausgebildet, die aus einem rohrförmigen Stahlelement hergestellt werden, das durch eine Vielzahl von quer verlaufenden Schlitzen, die sich etwa über den halben Durchmesser erstrek- ken, derart bearbeitet wurde, daß die verbleibenden Stege scharfkantige Klingen bilden. Auf der von der Scherfolie 2 abgewandten Seite der Untermesser 3 sind jeweils Kupplungselemente angebracht, die in montierten Zustand die Untermesser mit dem Antrieb in Eingriff bringen.Fig. 1 shows a cross section through an inventive shaving system in the form of a razor head in the form of an interchangeable frame 1, which can be connected to the housing of a dry shaver in a manner known per se. The interchangeable frame 1 carries two U-shaped curved shaving foils 2, which can be driven in an oscillating manner together with an associated lower knife 3, which can be driven by an appropriate drive of the dry shaver, for example in the form of an eccentric or a crank drive driven by an electric motor provided in the housing of the dry shaver , which form two shaving units for the short haircut. The lower knives 3 are designed in a manner known per se as so-called knife tube blocks, which are produced from a tubular steel element which has been machined through a plurality of transverse slots which extend approximately over half the diameter in such a way that the remaining webs form sharp-edged blades. Coupling elements are attached to the side of the lower knives 3 facing away from the shaving foil 2, which in the assembled state bring the lower knives into engagement with the drive.
In der Zeichnung ist lediglich eines der beiden Untermesser 3 gezeigt. Der Antrieb sowie das Gehäuse des Trockenrasierers wurden der Übersichtlichkeit halber ebenfalls zeichnerisch nicht dargestellt.In the drawing, only one of the two lower knives 3 is shown. The drive and the housing of the dry shaver were also not shown in the drawing for the sake of clarity.
Die beiden Scherfolien 2 sind mit ihren nach unten weisenden Schenkeln jeweils an einem von zwei Außenstegen 4 und einem von zwei Innenstegen 5 des Wechselrahmens 1 des zur Mittelebene A symmetrischen Scherkopfes befestigt. Die Außen- und Innenstege 4 bzw. 5 sind durch Seitenabschnitte 6 des Wechselrahmens 1 miteinander verbunden.The two shaving foils 2 are each fastened with their legs pointing downward to one of two outer webs 4 and one of two inner webs 5 of the interchangeable frame 1 of the shaving head symmetrical to the central plane A. The outer and inner webs 4 and 5 are connected to one another by side sections 6 of the interchangeable frame 1.
Zwischen den beiden Scherfolien 2, welche zusammen mit den zugeordneten Untermessern,. 3 die Schneideinheiten für den Kurzhaarschnitt bilden, ist der Langhaarschneider 10 mittig angeordnet, welcher mit den Seitenabschnitten 6 des Wechselrahmens 1 mittels einer Einklipsverbindung verbunden ist. Der Langhaarschneider 10 wird nun anhand der folgenden Figuren in Bezug auf Struktur und Funktion näher beschrieben.Between the two shaving foils 2, which together with the associated lower knives. 3 form the cutting units for the short hair cut, the long hair cutter 10 is arranged centrally, which is connected to the side sections 6 of the change frame 1 by means of a clip-in connection. The long hair trimmer 10 will now be described in more detail with reference to the following figures with regard to structure and function.
Sämtliche Figuren zeigen deutlich das Kupplungselement 11 , welches mit dem zentralen Schneidelement, nämlich der Schneidklinge 12 fest verbunden ist, wobei das Kupplungselement 11 nach dem Befestigen des Wechselrahmens 1 am Gehäuse des Trockenrasierers mit dem Antrieb des Trockenrasierers zum oszillierenden Betätigen der Schneidklinge 12 in Eingriff gebracht wird. Dieser Eingriff kann entweder unmittelbar oder mittelbar, etwa durch Einkoppeln der Schneidklinge 12 in ein mit einem der Untermesser 3 verbundenes Bauteil erfolgen. Wie Fig. 2 zu entnehmen, ist die oszillierend antreibbare Schneidklinge 12 zwischen zwei ortsfest im Wechselrahmen 1 angeordneten äußeren Schneidelementen, den Schneidkämmen 13 und 14, vorgesehen. Die Schneidklinge 12 sowie die beiden Schneidkämme 13 und 14 sind aus einem Stahlblech hergestellt, während das Kupplungselement 11 aus Kunststoff besteht. Die Schneidkämme 13 und 14 sind mit jeweils einem Kunststoffträger 15 bzw. 16 verbunden. Die beiden aus Schneidkamm 13 bzw. 14 und Kunststoffträger 15 bzw. 16 zusammengesetzten Baugruppen sind dabei identisch ausgeführt, sodaß sie pro Langhaarschneider 10 zweimal verwendet werden können, wodurch sich die Anzahl der verwendeten Teile reduzieren läßt. Aufgrund dieser Baugleichheit gilt die Beschreibung einzelner Elemente dieser Baugruppe natürlich auch für die entsprechende zweite Baugruppe.All of the figures clearly show the coupling element 11, which is firmly connected to the central cutting element, namely the cutting blade 12, the coupling element 11 being brought into engagement with the drive of the dry shaver for oscillating actuation of the cutting blade 12 after the removable frame 1 has been fastened to the housing of the dry shaver becomes. This intervention can take place either directly or indirectly, for example by coupling the cutting blade 12 into a component connected to one of the lower knives 3. As can be seen in FIG. 2, the cutting blade 12 which can be driven in an oscillating manner is provided between two outer cutting elements, the cutting combs 13 and 14, which are arranged in a fixed manner in the interchangeable frame 1. The cutting blade 12 and the two cutting combs 13 and 14 are made of sheet steel, while the coupling element 11 is made of plastic. The cutting combs 13 and 14 are each connected to a plastic carrier 15 and 16, respectively. The two assemblies composed of cutting comb 13 and 14 and plastic carrier 15 and 16 are identical, so that they can be used twice per long-hair trimmer 10, thereby reducing the number of parts used. Because of this identical construction, the description of individual elements of this assembly naturally also applies to the corresponding second assembly.
Auf den den Schneidkämmen 13, 14 abgewandten Seiten besitzen die Kunststoffträger 15, 16 Ausnehmungen 17, zur Aufnahme der gewölbten Enden 18 der Klammern 19, welche die beiden äußeren Schneidelemente unter elastischer Vorspannung gegen das mittlere Schneidelement andrücken. Somit ermöglichen die Klammern 19 sowohl eine Vorspannkrafterzeugung als auch eine Vormontage des Langhaarschneiders.On the sides facing away from the cutting combs 13, 14, the plastic carriers 15, 16 have recesses 17 for receiving the curved ends 18 of the clamps 19, which press the two outer cutting elements against the central cutting element under elastic pretension. Thus, the brackets 19 enable both the generation of a prestressing force and a preassembly of the long hair trimmer.
Die Schneidklinge 12 besitzt eine nach oben und in montiertem Zustand nach außen aus dem Scherkopf weisende Zahnreihe 20, deren Zähne 21 vom Kupplungselement 11 fortgerichtet sind. Die Schneidklinge 12 ist ferner mit zwei Langlöchern 22 versehen, die sich parallel zur Zahnreihe 20 erstrecken. Diese Langlöcher 22 sind mit einem Rand 23 aus Kunststoff verkleidet. Mittels der Langlöcher 22 wird die Schneidklinge 12 auf Führungsbolzen 24 geführt, so daß lediglich ein begrenztes Verschieben parallel zur Zahnreihe 20 möglich ist. Die Führungsbolzen 24 besitzen ebene Laufflächen 25, die sich in die gleiche Richtung wie die Langlöcher 22 erstrecken, sowie zwei halbkreisförmige Endbereiche 26. Jeder Kunststoffträger 15, 16 besitzt einen solchen Führungsbolzen 24, der sich durch den entsprechenden Schneidkamm 13, 14 hindurch erstreckt. Nach der Montage greift er in eine entsprechende Ausnehmung 27 des komplementären Kunststoffträgers ein.The cutting blade 12 has a tooth row 20 pointing upwards and in the assembled state outward from the shaving head, the teeth 21 of which are directed away from the coupling element 11. The cutting blade 12 is also provided with two elongated holes 22 which extend parallel to the row of teeth 20. These slots 22 are lined with an edge 23 made of plastic. The cutting blade 12 is guided on guide bolts 24 by means of the elongated holes 22, so that only a limited displacement parallel to the row of teeth 20 is possible. The guide bolts 24 have flat running surfaces 25, which extend in the same direction as the elongated holes 22, and two semicircular end regions 26. Each plastic carrier 15, 16 has such a guide bolt 24, which extends through the corresponding cutting comb 13, 14. After assembly, it engages in a corresponding recess 27 in the complementary plastic carrier.
Zur paßgenauen Montage und Befestigung der beiden Kunststoffträger 15 und 16 miteinander dient der sternförmige Klemmstift 28, welcher sich in die gleiche Richtung wie der Führungsbolzen 24 erstreckt und zum Verklemmen in die Bohrung 29 der Kunststoffträger gepreßt wird. Gegenüber den Ausnehmungeη 27 bzw. dem Führungsbolzen 24 seitlich nach außen versetzt, besitzen die Schneidkämme 13, 14 Durchgangsbohrungen, in welche Nietköpfe 30, welche am Kunststoffträger 15, 16 angeformt sind, hineinragen. Diese dienen der Befestigung der Schneidkämme an den Kunststoffträgern und werden mittels eines söge- nannten Warmverstemmvorganges bei der Montage durch Wärmebeaufschlagung erhitzt und anschließend wie ein Nietkopf 30 derart verformt, daß kein Überstand über die Schneidkämme in Richtung auf die Schneidklinge besteht, um ein freies Verschieben der Schneidklinge 12 relativ zu den Schneidkämmen 13 sicherzustellen; innerhalb der Durchgangsbohrungen jedoch werden die Nietköpfe 30 so verformt, daß eine radiale Klemmkraft zwischen dem Kunststoffteil und dem metallenen Schneidkamm bestehen bleibt. Die Kunststoffträger 15, 16 können jedoch auch durch Spritzguß direkt an die Schneidkämme 13, 14 angeformt werden.Star-shaped clamping pin 28, which extends in the same direction as the guide bolt 24 and is pressed into the bore 29 of the plastic carrier, is used for a precisely fitting assembly and fastening of the two plastic carriers 15 and 16 to one another. Compared to the Ausnehmungeη 27 or the guide pin 24 laterally offset, the cutting combs 13, 14 have through holes into which rivet heads 30, which are integrally formed on the plastic carrier 15, 16, protrude. These are used to attach the cutting combs to the plastic carriers and are called warm caulking during assembly heated by heat and then deformed like a rivet head 30 such that there is no protrusion over the cutting combs in the direction of the cutting blade to ensure free displacement of the cutting blade 12 relative to the cutting combs 13; within the through holes, however, the rivet heads 30 are deformed so that a radial clamping force between the plastic part and the metal cutting comb remains. However, the plastic carrier 15, 16 can also be molded directly onto the cutting combs 13, 14 by injection molding.
Seitlich besitzt jeder Kunststoffträger eine Abdeckung 31 , wie den Raum zwischen den beiden Scherfolien 2 nach Einbau des Langhaarschneiders verschließt, sowie einen elastisch verformbaren Rasthaken 32, der dem Verrasten des fertigmontierten Langhaarschneiders mit den beiden Seitenabschnitten 6 des Wechselrahmens 1 dient.On the side, each plastic carrier has a cover 31, which closes the space between the two shaving foils 2 after the long hair cutter has been installed, and an elastically deformable latching hook 32, which serves to lock the fully assembled long hair cutter to the two side sections 6 of the change frame 1.
Die jeweils der Schneidklinge 12 zugewandte Fläche des Schneidkammes 13 und 14 ist mit einer Vielzahl von Ausnehmungen 33 versehen, um einerseits Schmiermittel zur Reibungsverringerung aufzunehmen; andererseits wird hierdurch auch zwischen diese Kontaktflächen gelangter Haarstaub sehr schnell zerrieben, wodurch ein Spalt im Schneidbereich oder eine Aufbiegung der Schneidkämme bzw. der Klinge durch ein in diesen Kontaktbereich gelang^ tes Barthaar verhindert wird.The surface of the cutting comb 13 and 14 facing the cutting blade 12 is provided with a large number of recesses 33, on the one hand to receive lubricants for reducing friction; on the other hand, hair dust which has reached between these contact surfaces is also very quickly ground thereby, thereby preventing a gap in the cutting area or bending of the cutting combs or the blade by a whisker reaching this contact area.
Fig. 5 zeigt eine Schneidklinge 12, die mit einer Vielzahl von Ausnehmungen 40, die auch als Durchbrüche ausgebildet sein können, an den beiden den zugeordneten Schneidkämmen 13, 14 zugewandten Flächen. Darüber hinaus sind die Zähne der Zahnreihe 20 mit Durchbrüchen oder Ausnehmungen 41 versehen, wodurch der gerade erwähnte Effekt noch erhöht wird. Sowohl die Ausnehmungen als auch die Durchbrüche werden mittels eines ätztechnischen Verfahrens hergestellt.FIG. 5 shows a cutting blade 12, which has a plurality of recesses 40, which can also be designed as openings, on the two surfaces facing the assigned cutting combs 13, 14. In addition, the teeth of the row of teeth 20 are provided with openings or recesses 41, which increases the effect just mentioned. Both the recesses and the openings are produced using an etching process.
Die Zahnreihen 34 der Schneidkämme 13, 14 sind im Vergleich zur Zahnreihe 20 der Schneidklinge 12 mit einer deutlich größeren Zahnhöhe ausgebildet. In montiertem Zustand überragen die Zahnspitzen 35 der Zahnreihen 34 die Zahnspitzen der Zahnreihe 20, wodurch bei maximaler Hautschonung ein besonders gutes Durchkämmen des zu rasierenden Bartes und ein Aufrichten eventuelle flach auf der Haut anliegender Barthaare erreicht wird. Diese Höhendifferenz der Zahnspitzen wird insbesondere in Fig. 4 deutlich gezeigt. Um ein- mal abgeschnittene Barthaare möglichst schnell aus dem Schneidbereich entfernen zu können liegt der Zahngrund der Zahnreihen 34 der Schneidkämme 13, 14 deutlich, also ca. 1 bis 1 ,5 mm niedriger als der Zahngrund der Zahnreihe 20 der Schneidklinge. Durch diesen Unterschied im Niveau des jeweiligen Zahngrundes fällt ein im Schneidbereich anfallendes abgeschnittenes Barthaar automatisch nach außen und kann somit weitere Schneidvorgänge nicht behindern.The rows of teeth 34 of the cutting combs 13, 14 are formed with a significantly larger tooth height than the row of teeth 20 of the cutting blade 12. In the assembled state, the tooth tips 35 of the tooth rows 34 protrude from the tooth tips of the tooth row 20, whereby particularly gentle combing of the beard to be shaved and straightening of possible beard hair lying flat on the skin is achieved with maximum protection of the skin. This difference in height of the tooth tips is particularly clearly shown in FIG. 4. In order to To be able to remove whiskers that have been cut off as quickly as possible from the cutting area, the tooth base of the rows of teeth 34 of the cutting combs 13, 14 is clearly, ie approximately 1 to 1.5 mm lower than the tooth base of the row of teeth 20 of the cutting blade. As a result of this difference in the level of the respective tooth base, a trimmed beard hair that occurs in the cutting area automatically falls outwards and therefore cannot hinder further cutting processes.
Wie insbesondere in Fig. 4 veranschaulicht, ist die Teilung der Zahnreihe 20 etwas größer als die Teilung der Zahnreihe 34, wodurch ein Verhaken zwischen der Schneidklinge 12 und den Schneidkämmen 15, 16 verhindert wird. Gleichzeitig wird durch diese Differenz in der Teilung sichergestellt, daß nicht alle Schneidereignisse entlang der Zahnreihen gleichzeitig stattfinden, wodurch sich ein runderer Lauf einstellt.As illustrated in particular in FIG. 4, the pitch of the row of teeth 20 is somewhat larger than the pitch of the row of teeth 34, as a result of which jamming between the cutting blade 12 and the cutting combs 15, 16 is prevented. At the same time, this difference in the pitch ensures that not all cutting events along the rows of teeth take place at the same time, which results in a rounder run.
In Fig. 1 ist zu erkennen, daß die Schneidklinge 12 derart ausgerichtet ist, daß sie in der Mittelebene A zu liegen kommt. Die seitlich hierzu angeordneten Schneidkämme 13, 14 sind dagegen bei einer Ausführungsform des Langhaarschneiders 10 in der Weise ausgestellt vorgesehen, daß sie einen sich nach unten öffnenden spitzen Winkel bilden. Die Abweichung zur Mittelebene A beträgt dabei nur wenige Grad. Diese leichte Schrägstellung der Schneidkämme 13, 14 relativ zur Schneidklinge 12 hat zur Folge, daß sich zwischen den aufeinander gleitenden Metallteilen lediglich eine Berührlinie ergibt, was die auftretende Reibung deutlich gegenüber einer planen Auflage verringert.In Fig. 1 it can be seen that the cutting blade 12 is oriented such that it comes to lie in the central plane A. The cutting combs 13, 14 arranged laterally for this purpose, on the other hand, are provided in an embodiment of the long-hair trimmer 10 in such a way that they form an acute angle that opens downwards. The deviation from the central plane A is only a few degrees. This slight inclination of the cutting combs 13, 14 relative to the cutting blade 12 has the result that there is only one contact line between the metal parts sliding on one another, which significantly reduces the friction that occurs compared to a flat support.
Als Hautschutz und zum besonders hautfreundlichen Vorkämmen der zu schneidenden Barthaare sind an den Kunststoffträgern 15, 16 den Zahnreihen 34 vorgelagerte Kämme 36 mit abgerundeter Kontur und mit zu den Zahnreihen 34 identischer Teilung angeformt. Durch entsprechendes Andrücken dieser Kämme 36 an die zu rasierende Haut kann auch ein Abspannen der Haut während des Rasierens erfolgen, wodurch ein optimales Schneidergebnis begünstigt wird. Hierzu ist es besonders vorteilhaft, wenn die Zähne der Kämme 36 in Bezug auf die Zähne der Zahnreihe 34 um einen Winkel von ca. 45° nach außen, daß heißt gemäß der in Fig. 3 gezeigten Sicht nach vorn bzw. nach hinten, ausgestellt sind.As skin protection and for the particularly skin-friendly pre-combing of the whiskers to be cut, combs 36 upstream of the tooth rows 34 with a rounded contour and with a pitch identical to the tooth rows 34 are formed on the plastic carriers 15, 16. By appropriately pressing these combs 36 against the skin to be shaved, the skin can also be unclamped during the shaving, thereby promoting an optimal cutting result. For this purpose, it is particularly advantageous if the teeth of the combs 36 are turned outward in relation to the teeth of the row of teeth 34 by an angle of approximately 45 °, that is, according to the view shown in FIG. 3 to the front or to the rear ,
Wie Fig. 3 zeigt, sind die Zähne der Zahnreihen 34 der Schneidkämme 13, 14 sowie diejenigen der diesen vorgelagerten Kämmen 36 fluchtend zueinander ausgerichtet, so daß in der dort dargestellten Sicht die dem Schneidkamm 13 zugeordneten Zähne einschließlich der Zähne der Kämme 36 durch die dem Schneidkamm 14 zugeordneten Zähne verdeckt sind. Eine weitere zeichnerisch nicht dargestellte Ausführungsform des Langhaarschneiders zeichnet sich jedoch dadurch aus, daß zwischen den genannten Zähnen ein Versatz vorgesehen ist. Der maximale Versatz wäre dabei also die halbe Teilung der Zahnreihen 34. Durch diesen Versatz wird erreicht, daß mit höchster Wahrscheinlichkeit beim Überfahren der zu rasierenden Haut kein Haar den Langhaarschneider passiert, ohne durch einen der Kämme 36 oder der Schneidkämme 13, 14 beaufschlagt zu werden. Durch diese Maßnahme ist sichergestellt, daß insbesondere auch alle flach auf der Haut anliegenden und in Rasierrichtung ausgerichteten Haare auf ein Hindernis, also eine Kammzahn, treffen, wodurch sie angehoben und geschnitten werden können.As shown in FIG. 3, the teeth of the rows of teeth 34 of the cutting combs 13, 14 and those of the upstream combs 36 are aligned with one another, so that in the view shown there the teeth associated with the cutting comb 13 including the teeth Teeth of the combs 36 are hidden by the teeth assigned to the cutting comb 14. Another embodiment of the long hair trimmer, not shown in the drawing, is characterized in that an offset is provided between the teeth mentioned. The maximum offset would thus be half the pitch of the rows of teeth 34. This offset ensures that, with the highest probability, no hair passes the long-hair trimmer when the skin to be shaved is passed over, without being acted upon by one of the combs 36 or the cutting combs 13, 14 , This measure ensures that, in particular, all hair lying flat on the skin and oriented in the shaving direction also meets an obstacle, that is to say a comb tooth, as a result of which they can be lifted and cut.
Bei der Rasur mit dem beschriebenen Scherkopf werden zunächst mittels des Kurzhaarschneidsystems, welches aus der Scherfolie und dem zugeordneten Untermesser 3 besteht, kurze Haare ausrasiert, während längere Haare, die eventuell auch flach an der Haut aufliegen, durch den Langhaarschneider 10 in Rasierrichtung ausgerichtet werden und zwischen den Schneidkämmen 13, 14 und der Schneidklinge 12 abgeschnitten werden. Das dem Langhaarschneider 10 folgende Kurzhaarschneidsystem rasiert dann das durch den Langhaarschneider gekürzte Barthaar gründlich aus. When shaving with the described shaving head, short hair is first shaved by means of the short hair cutting system, which consists of the shaving foil and the associated lower knife 3, while longer hair, which may also lie flat on the skin, is aligned in the shaving direction by the long hair cutter 10 and be cut between the cutting combs 13, 14 and the cutting blade 12. The short hair trimmer system following the long hair trimmer 10 then thoroughly shaves off the beard hair shortened by the long hair trimmer.

Claims

Patentansprüche: claims:
1. Schersystem für einen Trockenrasierer, welches aus mindestens einem zwischen Schereinheiten für Kurzhaarschnitt angeordneten Langhaarschneider (10) besteht, wobei die Schereinheiten für den Kurzhaarschnitt jeweils aus einem Ober- und einem Untermesser (2, 3), die durch einen Antrieb relativ zueinander bewegbar sind, bestehen, und der Langhaarschneider aus mindestens zwei relativ zueinander bewegbaren und nebeneinander angeordneten Schneidelementen (12, 13, 14) gebildet ist, dadurch gekennzeichnet, daß die Schneidelemente (12, 13, 14) des Langhaarschneiders jeweils kammförmig ausgebildet und deren durch Zinken gebildete Schneidzahnreihen (20, 34) im wesentlichen senkrecht auf die zu rasierende Haut weisend ausgerichtet sind.1. shaving system for a dry shaver, which consists of at least one long hair cutter (10) arranged between shaving units for short haircut, the shaving units for short haircut each consisting of an upper and a lower knife (2, 3) which can be moved relative to one another by a drive , consist, and the long hair cutter is formed from at least two mutually movable and juxtaposed cutting elements (12, 13, 14), characterized in that the cutting elements (12, 13, 14) of the long hair cutter are each comb-shaped and their rows of teeth formed by prongs (20, 34) are oriented essentially perpendicular to the skin to be shaved.
2. Schersystem nach Anspruch 1 , dadurch gekennzeichnet, daß der Langhaarschneider (10) aus drei Schneidelementen (12, 13, 14) besteht, wobei das mittlere Schneidelement (12) relativ zu den beiden äußeren Schneideelementen (13, 14) bewegbar ist.2. Shaving system according to claim 1, characterized in that the long hair cutter (10) consists of three cutting elements (12, 13, 14), the central cutting element (12) being movable relative to the two outer cutting elements (13, 14).
3. Schersystem nach einem der vorhergehenden Ansprüche, dadurch gekennzei v. net, daß die Schneidzahnreihen (20, 34) der Schneidelemente parallel zueinander ausgerichtet sind, die Schneidelementebenen jedoch in einem spitzen Winkel zueinander verlaufen.3. shear system according to one of the preceding claims, characterized gekennzei v. net that the rows of cutting teeth (20, 34) of the cutting elements are aligned parallel to each other, but the cutting element planes are at an acute angle to each other.
4. Schersystem nach Anspruch 3, dadurch gekennzeichnet, daß der Winkel kleiner als 5° ist, vorzugsweise 2 bis 3° beträgt.4. Shear system according to claim 3, characterized in that the angle is less than 5 °, preferably 2 to 3 °.
5. Schersystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Zahnspitzen eines der Schneidelemente (12) gegenüber den Zahnspitzen (35) mindestens eines weiteren Schneidelementes (13, 14) in Bezug auf die zu rasierende Hautfläche abgesenkt ist.5. Shear system according to one of the preceding claims, characterized in that the tooth tips of one of the cutting elements (12) with respect to the tooth tips (35) of at least one further cutting element (13, 14) is lowered with respect to the skin surface to be shaved.
6. Schersystem nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß das mittlere Schneidelement (12) gegenüber den äußeren Schneidelementen (13, 14) abgesenkt ist. 6. Shear system according to one of claims 2 to 5, characterized in that the central cutting element (12) is lowered relative to the outer cutting elements (13, 14).
7. Schersystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Zahngrund mindestens einer der Schneidzahnreihen (34) gegenüber dem Zahngrund mindestens einer weiteren Schneidzahnreihe (20) abgesenkt ist.7. Shear system according to one of the preceding claims, characterized in that the tooth base of at least one of the rows of cutting teeth (34) is lowered relative to the tooth base of at least one further row of cutting teeth (20).
8. Schersystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß einander zugewandte Seitenflächen der Schneidelemente (12, 13, 14) mit einer Vielzahl vor Ausnehmungen (33, 40) und/oder Durchbrüchen (41) versehen sind.8. Shear system according to one of the preceding claims, characterized in that mutually facing side surfaces of the cutting elements (12, 13, 14) are provided with a plurality of recesses (33, 40) and / or openings (41).
9. Schersystem nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß benachbarte Schneidzahnreihen (20, 34) unterschiedliche Teilung aufweisen. 9. Shear system according to one of the preceding claims, characterized in that adjacent rows of cutting teeth (20, 34) have different pitches.
EP02702346A 2001-03-02 2002-02-06 Shaving system for a dry shaver Expired - Lifetime EP1370397B1 (en)

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DE10110228 2001-03-02
DE10110228A DE10110228C1 (en) 2001-03-02 2001-03-02 Shaving system for a dry shaver with a long hair cutter
PCT/EP2002/001189 WO2002070212A1 (en) 2001-03-02 2002-02-06 Shearing system for a dry shaver

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DE50214024D1 (en) 2010-01-07
EP1370397B1 (en) 2009-11-25
JP2004521689A (en) 2004-07-22
CN1264658C (en) 2006-07-19
CN1501852A (en) 2004-06-02
WO2002070212A1 (en) 2002-09-12
JP4204320B2 (en) 2009-01-07
US20040040157A1 (en) 2004-03-04
DE10110228C1 (en) 2002-08-01
ATE449673T1 (en) 2009-12-15
US6889437B2 (en) 2005-05-10

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