EP0345449B1 - Long hair cutter for a dry-shaver - Google Patents

Long hair cutter for a dry-shaver Download PDF

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Publication number
EP0345449B1
EP0345449B1 EP89107310A EP89107310A EP0345449B1 EP 0345449 B1 EP0345449 B1 EP 0345449B1 EP 89107310 A EP89107310 A EP 89107310A EP 89107310 A EP89107310 A EP 89107310A EP 0345449 B1 EP0345449 B1 EP 0345449B1
Authority
EP
European Patent Office
Prior art keywords
blade
long
cutting blade
seating edge
carrier body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89107310A
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German (de)
French (fr)
Other versions
EP0345449A2 (en
EP0345449A3 (en
Inventor
Albrecht Jestädt
Klaus Oprach
Gerhard Schäfer
Hans Eberhard Heintke
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Braun GmbH
Original Assignee
Braun GmbH
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Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Priority to AT89107310T priority Critical patent/ATE79795T1/en
Publication of EP0345449A2 publication Critical patent/EP0345449A2/en
Publication of EP0345449A3 publication Critical patent/EP0345449A3/en
Application granted granted Critical
Publication of EP0345449B1 publication Critical patent/EP0345449B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • Long-hair cutting device for dry shavers with a shaving comb fixed to a housing with a contact surface for the contact surface of a blade blade, which is coupled via at least one driver to a support body that can be driven by a drive and at least one pressure spring that is supported on the one hand on the support body and on the other hand on the housing.
  • Such a long hair cutting device is known from DE-C-33 03 989.
  • Both the cutting combs and the blade blades of long-hair cutting devices are ground flat on the respective sides coming into contact with the cutting teeth in order to produce sharp cutting edges. Due to the relatively thin wall thickness of these cutting parts, with the release and removal of the cutting parts firmly clamped in the cutting device and ground flat, there is a material distortion in the form of a slight curvature which opposes a flat contact of the cutting parts over their entire longitudinal extent.
  • a long hair cutting device consisting of a shear comb fixedly arranged on a housing, a blade blade driven by a drive and a pressure lever acted upon by pressure springs and tiltably mounted in the housing, the lever arms of which are provided at the ends on the back - Rest and movable blade blade and keep it in contact with the shaving comb.
  • the object of the invention is to provide a long-hair cutting device of the type mentioned, in which, in the assembled state, an optimal contact of the interacting cutting areas of the shaving comb and the blade blade is automatically established over their longitudinal extent.
  • this object is achieved in a long-hair cutting device of the type mentioned in that a slightly protruding support edge made of plastic material with a tapering cross-sectional profile is provided on the support body on the side facing the cutting teeth of the blade blade, that the support edge is provided in entire area of the tooth base rests on the blade blade and that the blade blade can be brought into contact with the shaving comb by deformation of the support edge and blade blade by means of the pressure force exerted by the pressure spring on the support body on the support edge and the blade blade.
  • the solution according to the invention is characterized by a good installation of the cutting areas of the blade blade and shaving comb over their entire longitudinal extent, which automatically occurs in the assembled state of the long-hair cutting device, with the consequence of a substantially improved cutting performance.
  • the material distortion resulting from the manufacture of the blade blade and shaving comb is compensated for by deforming the support edge, which is made of a plastic material, and the blade blade.
  • the support edge is formed on the support body.
  • the cross-sectional profile of the contact edge is preferably triangular.
  • the support edge extending in the extension of the side wall of the support body, is provided on the upper side wall thereof.
  • the support edge is protruding from the upper side wall and the front side wall.
  • a particularly good contact of the cutting areas of the shaving comb and blade blade is achieved according to the invention in that the support edge is both elastically and plastically deformable.
  • the blade blade expediently has a low section modulus in the pressing direction of the pressing springs.
  • the shaving head frame of a dry shaving apparatus is denoted by 1, the housing, shown partly in section, by 2 and the front cheek by 3.
  • a support strip 4 extending in the longitudinal direction is formed on the inner wall of the housing wall 2.1.
  • the long-hair cutting device has a fixed shear comb 5, a movable blade blade 6 coupled to a support body 7 and pressure springs 8 which are supported on the support bar 4 and a fork 9 formed on the support body 7.
  • the long hair cutting device is shown in the operating state.
  • the displaceable drive lever 10 is located above the integrally formed drive bolt 11 in the U-shaped recess of the fork 9 and in this way transmits the oscillating movement of the drive lever 10 which is in the switched-on state to the movable shear blade.
  • the drive lever 10 By moving the drive lever 10 in the direction of arrow B, the drive pin 11 slides out of the fork 9, whereby the long-hair cutting device comes to a standstill.
  • the shaving foil 12 is held in the shaving head frame 1 in a known manner, while the fixed shaving comb 5, as can be seen in FIG. 2, is fastened by two screws or rivets 13 on a ledge 14 provided on the shaving head frame 1.
  • the housing wall 2.1 of the housing 2 of the shaving head frame ends just below the movable blade blade 6, so that here a narrow gap 27 is formed, through which the support body 7 is partially visible over the entire longitudinal extent.
  • the partial cut made in the housing wall 2.1 shows the drive lever 10 with the drive bolt 11, the fork 9, the support body 7, two pressure springs 8 and a guide bar 15, insofar as these are exposed by the partial cut.
  • the pressure springs 8 are supported on the support bar 4 shown in dashed lines, which is located on the inside of the housing wall 2.1 of the shaving head frame, and protrude with its opposite end into recesses 16 located on the support body 7. These recesses 16 define the position and the pressure point of the pressure springs in the support body 7 and also serve to guide and facilitate the assembly of these mutually engaging components. Preferably, four recesses 16 are provided in the support body 7 and four pressure springs in the long-hair trimmer shown.
  • a guide bar 15 is visible, the task of which is to keep the support body 7 in its sliding position, that is to prevent movement or migration of the support body 7 in the direction of arrow A according to FIG. 1.
  • the partial section shows, starting from the center line, only the right side of the support body 7 with the guide bar 15 and two pressure springs 8. It goes without saying that the left side is mirror-inverted.
  • a breakthrough is provided above the fork 9 on the support body 7, through which the driver 18 formed on the support body and via which the blade 6 is coupled to the support body is shown in a visible manner.
  • a two-point or three-point attachment of the blade on the support body 7 can be provided.
  • the receiving openings in the blade blade 6 are to be provided, with the driver and receiving openings engaging in the direction of movement C of the blade blade 6 without play.
  • a slightly protruding support edge 31 made of plastic material is formed with a cross-sectional profile that tapers to the blade blade 6.
  • the contact edge is formed so as to protrude from the upper side wall 33 and from the front side wall 34 of the support body 7 with a cross-sectional profile oriented at an acute angle to the blade sheet 6.
  • the cross-sectional profile of the contact edge 31 can also be triangular, as shown in FIG. 5, with a side wall extending in the extension of the front side wall 34 of the support body 7 and extending opposite the upper side wall 33 of the support body 7, molded onto the latter.
  • Fig. 4 shows the upper part of a support body 7 with a blade blade 6 arranged thereon, shown in section, in the preassembled state.
  • the blade blade 6 rests on the one hand on the support edge 31 and on the other hand on the upper side wall 33 of the supporting body 7, the tapering cross-sectional profile of the support edge 31 being in direct contact with the tooth base 32 of the cutting teeth 30.
  • the driver (s) formed on the upper side wall 33 on the support body 7 engage in receiving openings 21 provided in the blade sheet 6 for the purpose of taking the blade sheet with them.
  • the blade blade 6 executes under the influence of the pressure force exerted by the pressure spring 8 or the pressure springs 8 on the support body 7, via the support edge 31 is transferred to the blade blade, a pivoting movement.
  • the sound Sheet 6 stands out from the upper side wall 33 and with its contact surface 24 comes to rest against the contact surface 25 of the shaving comb 5 fastened to the housing 2.
  • the blade blade 6 is therefore held exclusively via the contact edge 31 in contact with the shaving comb 5.
  • the exemplary embodiment according to FIG. 3 shows the upper part of a switch slide 35 provided on a shaving apparatus and receiving the long-hair cutting device, by means of which the long-hair cutting device can be displaceably provided on the shaving apparatus.
  • the longitudinal ends of the angled shear comb 5 are fastened to the housing 2 of the slide switch 35 - not shown in the sectional view.
  • the support body 7 is slidably mounted between the housing wall 2.1 of the slide switch 35 and the angled wall 36 of the shear comb 5.
  • pressure springs 8 - of which only one is shown - which are supported on the support strip 4 of the housing wall 2.1 and on the other hand act on the supporting body 7 - their pressure force is transmitted to the blade blade 6 via the contact edge 31.
  • the blade blade 6 coupled to the driver 18 - as can be seen - is only in the assembled state by the support edge formed on the support body 31 worn.
  • the support edge 31, which tapers to the blade blade 6, lies in the area of the tooth base 32 on the blade blade 6 and brings about a good contact of the contact surfaces 24 and 25 of the blade blade and shaving comb under the action of the pressing force of the pressure springs 8, in particular in the cutting area of the cutting teeth 30 of the blade blade and the cutting teeth 37 of the shaving comb.
  • the support edge 31 which is made of a plastic material, extends over the entire length of the blade blade 6 and shear comb 5 and, by means of elastic and plastic deformation and a slight deflection of the blade blade, causes the contact surfaces 24 and 25 to lie perfectly over their entire longitudinal extent, in particular in the cutting area of the Cutting teeth 30 and 37.
  • the sliding surface 25 has a U-shaped recess 38 (FIG. 3) or an interruption, which can be produced, for example, by appropriate shaping of a shaving comb folded from a sheet metal strip (FIG. 1).

Abstract

Long hair cutter for a dry-shaver, with a shearing comb fixedly arranged on a housing, with a bearing face for the bearing face of a blade leaf, which is coupled via at least one driver to a carrying member which can be driven by a drive, and with at least one pressure spring which is supported, on the one hand, on the carrying member and, on the other hand, on the housing, there being provided on the carrying member on the side facing the cutting teeth of the blade leaf a slightly protruding supporting edge made of plastic material and with a cross-sectional profile tapering towards the blade leaf, and the supporting edge bearing on the blade leaf in the region of the tooth bottom of the cutting teeth, and an optimal bearing of the blade leaf on the shearing comb being provided by deformation of supporting edge and blade leaf by means of the pressing force exerted by the pressure spring via the carrying member upon the supporting edge and upon the blade leaf. <IMAGE>

Description

Langhaarschneideinrichtung für Trockenrasierapparate mit einem an einem Gehäuse fest angeordneten Scherkamm, mit einer Anlagefläche für die Anlagefläche eines Klingenblattes, das über wenigstens einen Mitnehmer mit einem von einem Antrieb antreibbaren Tragkörper gekoppelt ist und wenigstens einer sich einerseits am Tragkörper und andererseits am Gehäuse abstützenden Andruckfeder.Long-hair cutting device for dry shavers with a shaving comb fixed to a housing, with a contact surface for the contact surface of a blade blade, which is coupled via at least one driver to a support body that can be driven by a drive and at least one pressure spring that is supported on the one hand on the support body and on the other hand on the housing.

Eine derartige Langhaarschneideinrichtung ist aus der DE-C-33 03 989 bekannt. Sowohl die Schneidkämme als auch die Klingenblätter von Langhaarschneideinrichtungen werden zur Herstellung scharfer Schneidkanten an den Schneidzähnen auf den jeweiligen zur Anlage gelangenden Seiten plan geschliffen. Bedingt durch die relativ dünne Wandstärke dieser Schneidteile stellt sich mit der Freigabe und Entnahme der in der Schneidvorrichtung fest eingespannten und plan geschliffenen Schneidteile ein Materialverzug in Form einer leichten Krümmung ein, die einer ebenflächigen Anlage der Schneidteile über deren gesamte Längserstreckung entgegensteht. Die sonach aus dem Schleifvorgang resultierenden, im montierten Zustand der Langhaarschneideinrichtung gegeneinander verlaufenden Krümmungen der Schneidteile bewirken durch die sich an den Endseiten ihrer Längserstreckung einstellende Anlage eine ungleichmäßige Verteilung der von den Andruckfedern auf den Tragkörper ausgeübten Andruckkräfte.Such a long hair cutting device is known from DE-C-33 03 989. Both the cutting combs and the blade blades of long-hair cutting devices are ground flat on the respective sides coming into contact with the cutting teeth in order to produce sharp cutting edges. Due to the relatively thin wall thickness of these cutting parts, with the release and removal of the cutting parts firmly clamped in the cutting device and ground flat, there is a material distortion in the form of a slight curvature which opposes a flat contact of the cutting parts over their entire longitudinal extent. The curvatures of the cutting parts that result from the grinding process and run against one another in the assembled state of the long-hair cutting device result in an uneven distribution of the pressing forces exerted by the pressure springs on the supporting body due to the system that is set up on the end sides of their longitudinal extension.

Aus der EP-A-0 008 483 ist eine Langhaarschneideinrichtung bekannt, bestehend aus einem an einem Gehäuse fest angeordneten Scherkamm, einem von einem Antrieb angetriebenen Klingenblatt und einem von Andruckfedern beaufschlagten, im Gehäuse kippbar gelagerten Andruckhebel, dessen jeweils endseitig vorgesehene Hebelarme an dem hin- und herbewegbaren Klingenblatt anliegen und dieses in Anlage an dem Scherkamm halten.From EP-A-0 008 483 a long hair cutting device is known, consisting of a shear comb fixedly arranged on a housing, a blade blade driven by a drive and a pressure lever acted upon by pressure springs and tiltably mounted in the housing, the lever arms of which are provided at the ends on the back - Rest and movable blade blade and keep it in contact with the shaving comb.

Aufgabe der Erfindung ist es, eine Langhaarschneideinrichtung der eingangs genannten Art zu schaffen, bei der sich im montierten Zustand eine optimale Anlage der zusammenwirkenden Schneidbereiche von Scherkamm und Klingenblatt über deren Längserstreckung automatisch einstellt.The object of the invention is to provide a long-hair cutting device of the type mentioned, in which, in the assembled state, an optimal contact of the interacting cutting areas of the shaving comb and the blade blade is automatically established over their longitudinal extent.

Nach der Erfindung wird diese Aufgabe bei einer Langhaarschneideinrichtung der eingangs genannten Art dadurch gelöst, daß an dem Tragkörper an der den Schneidzähnen des Klingenblattes zugewandten Seite eine geringfügig hervorstehende, aus plastischem Material bestehende Auflagekante mit sich zum Klingenblatt verjüngendem Querschnittsprofil vorgesehen ist, daß die Auflagekante im gesamten Bereich des Zahngrundes an dem Klingenblatt anliegt und daß durch Verformung von Auflagekante und Klingenblatt mittels der von der Andruckfeder über den Tragkörper auf die Auflagekante und das Klingenblatt ausgeübten Andruckkraft die Anlage des Klingenblattes an dem Scherkamm herstellbar ist.According to the invention, this object is achieved in a long-hair cutting device of the type mentioned in that a slightly protruding support edge made of plastic material with a tapering cross-sectional profile is provided on the support body on the side facing the cutting teeth of the blade blade, that the support edge is provided in entire area of the tooth base rests on the blade blade and that the blade blade can be brought into contact with the shaving comb by deformation of the support edge and blade blade by means of the pressure force exerted by the pressure spring on the support body on the support edge and the blade blade.

Die Lösung nach der Erfindung zeichnet sich durch eine sich im montierten Zustand der Langhaarschneideinrichtung automatisch einstellende, gute Anlage der Schneidbereiche von Klingenblatt und Scherkamm über deren gesamten Längserstreckung aus mit der Folge einer wesentlich verbesserten Schneidleistung. Mittels Verformung der aus einem plastischen Material bestehenden Auflagekante sowie des Klingenblattes wird der aus der Herstellung von Klingenblatt und Scherkamm resultierende Materialverzug ausgeglichen.The solution according to the invention is characterized by a good installation of the cutting areas of the blade blade and shaving comb over their entire longitudinal extent, which automatically occurs in the assembled state of the long-hair cutting device, with the consequence of a substantially improved cutting performance. The material distortion resulting from the manufacture of the blade blade and shaving comb is compensated for by deforming the support edge, which is made of a plastic material, and the blade blade.

Nach einer besonders vorteilhaften Ausführungsform der Erfindung ist die Auflagekante an dem Tragkörper angeformt.According to a particularly advantageous embodiment of the invention, the support edge is formed on the support body.

Vorzugsweise ist das Querschnittsprofil der Auflagekante dreiecksförmig ausgebildet.The cross-sectional profile of the contact edge is preferably triangular.

Nach einer Ausführungsform der Erfindung ist die Auflagekante, sich in Verlängerung der Seitenwand des Tragkörper erstreckend, auf dessen oberer Seitenwand vorgesehen.According to one embodiment of the invention, the support edge, extending in the extension of the side wall of the support body, is provided on the upper side wall thereof.

Nach einer bevorzugten Ausführungsform der Erfindung ist die Auflagekante gegenüber der oberen Seitenwand und der vorderen Seitenwand hervorstehend ausgebildet.According to a preferred embodiment of the invention, the support edge is protruding from the upper side wall and the front side wall.

Eine besonders gute Anlage der Schneidbereiche von Scherkamm und Klingenblatt wird nach der Erfindung dadurch erzielt, daß die Auflagekante sowohl elastisch als auch plastisch verformbar ist.A particularly good contact of the cutting areas of the shaving comb and blade blade is achieved according to the invention in that the support edge is both elastically and plastically deformable.

Zweckmäßigerweise weist das Klingenblatt ein geringes Widerstandsmoment in Andruckrichtung der Andruckfedern auf.The blade blade expediently has a low section modulus in the pressing direction of the pressing springs.

Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung und den Zeichnungen, in denen bevorzugte Ausführungsbeispiele einer Langhaarschneideinrichtung dargestellt sind, und zwar zeigen

  • Fig. 1 eine Seitenansicht eines Scherkopfrahmens mit einem Teilschnitt im Bereich der Langhaarschneideinrichtung;
  • Fig. 2 eine Vorderansicht eines Scherkopfrahmens gemäß Pfeilrichtung A nach Fig. 1 mit einer Scherfolie und einer Langhaarschneideinrichtung und einem Teilschnitt in der vorderen Gehäusewand;
  • Fig. 3 einen Schnitt durch eine in einem Schiebeschalter vorgesehenen Langhaarschneideinrichtung;
  • Fig. 4 den oberen Teil eines Tragkörpers mit einem Klingenblatt;
  • Fig. 5 den oberen Teil eines Tragkörpers mit Auflagekante.
Further advantages and details of the invention emerge from the following description and the drawings, in which preferred exemplary embodiments of a long-hair cutting device are shown, namely
  • Figure 1 is a side view of a shaving head frame with a partial section in the area of the long hair cutting device.
  • FIG. 2 shows a front view of a shaving head frame according to arrow direction A according to FIG. 1 with a shaving foil and a long hair cutting device and a partial section in the front housing wall;
  • 3 shows a section through a long-hair cutting device provided in a slide switch;
  • Figure 4 shows the upper part of a support body with a blade blade.
  • Fig. 5 shows the upper part of a support body with a supporting edge.

In Fig. 1 und 2 ist der Scherkopfrahmen eines Trockenrasierapparates mit 1, das teilweise im Schnitt dargestellte Gehäuse mit 2 und die Stirnwange mit 3 bezeichnet. An der Innenwandung der Gehäusewand 2.1 ist eine sich in Längsrichtung erstreckende Stützleiste 4 angeformt.1 and 2, the shaving head frame of a dry shaving apparatus is denoted by 1, the housing, shown partly in section, by 2 and the front cheek by 3. A support strip 4 extending in the longitudinal direction is formed on the inner wall of the housing wall 2.1.

Die Langhaarschneideinrichtung weist einen feststehenden Scherkamm 5, ein bewegliches, mit einem Tragkörper 7 gekoppeltes Klingenblatt 6 sowie Andruckfedern 8, die sich auf der Stützleiste 4 abstützen und eine am Tragkörper 7 angeformte Gabel 9 auf.The long-hair cutting device has a fixed shear comb 5, a movable blade blade 6 coupled to a support body 7 and pressure springs 8 which are supported on the support bar 4 and a fork 9 formed on the support body 7.

Die Langhaarschneideinrichtung ist im Betriebszustand dargestellt. Der verschiebbare Antriebshebel 10 befindet sich über den angeformten Antriebsbolzen 11 in der U-förmigen Ausnehmung der Gabel 9 und überträgt auf diese Weise die oszillierende Bewegung des im Einschaltzustand befindlichen Antriebshebels 10 auf die bewegliche Scherklinge. Durch Verschiebung des Antriebshebels 10 in Pfeilrichtung B gleitet der Antriebsbolzen 11 aus der Gabel 9 heraus, wodurch die Langhaarschneideinrichtung zum Stillstand kommt.The long hair cutting device is shown in the operating state. The displaceable drive lever 10 is located above the integrally formed drive bolt 11 in the U-shaped recess of the fork 9 and in this way transmits the oscillating movement of the drive lever 10 which is in the switched-on state to the movable shear blade. By moving the drive lever 10 in the direction of arrow B, the drive pin 11 slides out of the fork 9, whereby the long-hair cutting device comes to a standstill.

Die Scherfolie 12 ist im Scherkopfrahmen 1 in bekannter Weise gehalten, während der feststehende Scherkamm 5, wie aus Fig. 2 ersichtlich, von zwei Schrauben oder Nieten 13 auf einem am Scherkopfrahmen 1 vorgesehenen Sims 14 befestigt ist. Die Gehäusewand 2.1 des Gehäuses 2 des Scherkopfrahmens endet kurz unterhalb des beweglichen Klingenblattes 6, so daß hier ein schmaler Spalt 27 entsteht, durch den teilweise der Tragkörper 7 über die gesamte Längserstreckung sichtbar ist. Der in der Gehäusewandung 2.1 vorgenommene Teilschnitt gibt den Antriebshebel 10 mit dem Antriebsbolzen 11, die Gabel 9, den Tragkörper 7, zwei Andruckfedern 8 und eine Führungsleiste 15 zu erkennen, soweit diese durch den Teilschnitt freigelegt werden.The shaving foil 12 is held in the shaving head frame 1 in a known manner, while the fixed shaving comb 5, as can be seen in FIG. 2, is fastened by two screws or rivets 13 on a ledge 14 provided on the shaving head frame 1. The housing wall 2.1 of the housing 2 of the shaving head frame ends just below the movable blade blade 6, so that here a narrow gap 27 is formed, through which the support body 7 is partially visible over the entire longitudinal extent. The partial cut made in the housing wall 2.1 shows the drive lever 10 with the drive bolt 11, the fork 9, the support body 7, two pressure springs 8 and a guide bar 15, insofar as these are exposed by the partial cut.

Die Andruckfedern 8 stützen sich auf der gestrichelt dargestellten Stützleiste 4, die sich auf der Innenseite der Gehäusewandung 2.1 des Scherkopfrahmens befindet, ab und ragen mit ihrem entgegengesetzten Ende in am Tragkörper 7 befindliche Ausnehmungen 16 hinein. Diese Ausnehmungen 16 definieren die Lage und den Druckpunkt der Andruckfedern im Tragkörper 7 und dienen darüber hinaus zur Führung und Erleichterung der Montage dieser in Eingriff miteinander stehenden Bauteile. Vorzugsweise sind vier Ausnehmungen 16 im Tragkörper 7 und vier Andruckfedern in der dargestellten Langhaarschneideinrichtung vorgesehen.The pressure springs 8 are supported on the support bar 4 shown in dashed lines, which is located on the inside of the housing wall 2.1 of the shaving head frame, and protrude with its opposite end into recesses 16 located on the support body 7. These recesses 16 define the position and the pressure point of the pressure springs in the support body 7 and also serve to guide and facilitate the assembly of these mutually engaging components. Preferably, four recesses 16 are provided in the support body 7 and four pressure springs in the long-hair trimmer shown.

Durch den Teilschnitt ist eine Führungsleiste 15 sichtbar, deren Aufgabe darin besteht, den Tragkörper 7 in seiner Gleitposition zu halten, das heißt eine Bewegung oder Auswanderung des Tragkörpers 7 in Pfeilrichtung A nach Fig. 1 zu verhindern.Through the partial section, a guide bar 15 is visible, the task of which is to keep the support body 7 in its sliding position, that is to prevent movement or migration of the support body 7 in the direction of arrow A according to FIG. 1.

Der Teilschnitt zeigt, ausgehend von der Mittellinie, lediglich die rechte Seite des Tragkörpers 7 mit der Führungsleiste 15 und zwei Andruckfedern 8. Es versteht sich von selbst, daß die linke Seite spiegelbildlich ausgebildet ist.The partial section shows, starting from the center line, only the right side of the support body 7 with the guide bar 15 and two pressure springs 8. It goes without saying that the left side is mirror-inverted.

Oberhalb der Gabel 9 ist am Tragkörper 7 ein Durchbruch vorgesehen, durch den der am Tragkörper angeformte Mitnehmer 18, über den das Klingenblatt 6 mit dem Tragkörper gekoppelt ist, sichtbar dargestellt ist.A breakthrough is provided above the fork 9 on the support body 7, through which the driver 18 formed on the support body and via which the blade 6 is coupled to the support body is shown in a visible manner.

Alternativ kann auch eine Zweipunkt- oder Dreipunktbefestigung des Klingenblattes auf dem Tragkörper 7 vorgesehen werden. Entsprechend der Form des bzw. der Mitnehmer 18 sind die Aufnahmedurchbrüche im Klingenblatt 6 vorzusehen, wobei Mitnehmer und Aufnahmedurchbrüche in Bewegungsrichtung C des Klingenblattes 6 spielfrei ineinandergreifen.Alternatively, a two-point or three-point attachment of the blade on the support body 7 can be provided. Corresponding to the shape of the driver (s) 18, the receiving openings in the blade blade 6 are to be provided, with the driver and receiving openings engaging in the direction of movement C of the blade blade 6 without play.

An dem Tragkörper 7 ist an der den Schneidzähnen 30 des Klingenblattes 6 zugewandten Seite eine geringfügig hervorstehende, aus plastischem Material bestehende Auflagekante 31 mit sich zum Klingenblatt 6 verjüngenden Querschnittsprofil angeformt. Bei dem Ausführungsbeispiel nach den Figuren 1 und 3 ist die Auflagekante gegenüber der oberen Seitenwand 33 und gegenüber der vorderen Seitenwand 34 des Tragkörpers 7 hervorstehend mit einem spitzwinklig zum Klingenblatt 6 ausgerichteten Querschnittsprofil ausgebildet. Das Querschnittsprofil der Auflagekante 31 kann auch wie in Fig. 5 dargestellt, dreieckförmig, mit einer sich in Verlängerung der vorderen Seitenwand 34 des Tragkörpers 7 erstreckenden Seitenwand ausgebildet und sich gegenüber der oberen Seitenwand 33 des Tragkörpers 7 erstreckend, an diesem angeformt sein.On the support body 7, on the side facing the cutting teeth 30 of the blade blade 6, a slightly protruding support edge 31 made of plastic material is formed with a cross-sectional profile that tapers to the blade blade 6. In the exemplary embodiment according to FIGS. 1 and 3, the contact edge is formed so as to protrude from the upper side wall 33 and from the front side wall 34 of the support body 7 with a cross-sectional profile oriented at an acute angle to the blade sheet 6. The cross-sectional profile of the contact edge 31 can also be triangular, as shown in FIG. 5, with a side wall extending in the extension of the front side wall 34 of the support body 7 and extending opposite the upper side wall 33 of the support body 7, molded onto the latter.

Fig. 4 zeigt den oberen Teil eines Tragkörpers 7 mit einem darauf angeordneten, im Schnitt dargestellten Klingenblatt 6, im vormontierten Zustand. Das Klingenblatt 6 liegt einerseits auf der Auflagekante 31 und andererseits auf der oberen Seitenwand 33 des Tragkörpers 7 auf, wobei das sich verjüngende Querschnittsprofil der Auflagekante 31 unmittelbar am Zahngrund 32 der Schneidzähne 30 anliegt. Der bzw. die auf der oberen Seitenwand 33 am Tragkörper 7 angeformten Mitnehmer 18 greifen in im Klingenblatt 6 vorgesehene Aufnahmedurchbrüche 21 zwecks Mitnahme des Klingenblattes ein.Fig. 4 shows the upper part of a support body 7 with a blade blade 6 arranged thereon, shown in section, in the preassembled state. The blade blade 6 rests on the one hand on the support edge 31 and on the other hand on the upper side wall 33 of the supporting body 7, the tapering cross-sectional profile of the support edge 31 being in direct contact with the tooth base 32 of the cutting teeth 30. The driver (s) formed on the upper side wall 33 on the support body 7 engage in receiving openings 21 provided in the blade sheet 6 for the purpose of taking the blade sheet with them.

Im Verlauf des Zusammenbaus der Langhaarschneideinrichtung in einem Scherkopfrahmen nach Fig. 1 oder einem Schiebeschalter 35 nach Fig. 3, vollzieht das Klingenblatt 6 unter Einwirkung der von der Andruckfeder 8 bzw. den Andruckfedern 8 auf den Tragkörper 7 ausgeübten Andruckkraft, die über die Auflagekante 31 auf das Klingenblatt übergeleitet wird, eine Schwenkbewegung. Das Klingen blatt 6 hebt sich dabei von der oberen Seitenwand 33 ab und gelangt mit seiner Anlagefläche 24 zur Anlage an die Anlagefläche 25 des am Gehäuse 2 befestigten Scherkammes 5. Das Klingenblatt 6 wird sonach ausschließlich über die Auflagekante 31 in Anlage an dem Scherkamm 5 gehalten. Mittels der von der bzw. den Andruckfedern über den Tragkörper 7 auf die Auflagekante 31 und das Klingenblatt 6 ausgeübten Andruckkraft stellt sich eine Verformung der aus einem plastischen Material bestehenden Auflagekante 31 und des Klingenblattes 6 ein, dessen Widerstandsmoment in Andruckrichtung der Andruckfedern 8 eine geringe Durchbiegung erlaubt. Die elastische und/oder plastische Verformung der Auflagekante 31 in Kombination mit der Durchbiegung des Klingenblattes 6 bewirkt eine hervorragende Anlage des Klingenblattes an dem Scherkamm, insbesondere im Schneidbereich der Schneidzähne von Klingenblatt und Scherkamm, die sich im Ergebnis durch eine besonders gute Schneidleistung der Langhaarschneideinrichtung auszeichnet.In the course of the assembly of the long hair cutting device in a shaving head frame according to FIG. 1 or a slide switch 35 according to FIG. 3, the blade blade 6 executes under the influence of the pressure force exerted by the pressure spring 8 or the pressure springs 8 on the support body 7, via the support edge 31 is transferred to the blade blade, a pivoting movement. The sound Sheet 6 stands out from the upper side wall 33 and with its contact surface 24 comes to rest against the contact surface 25 of the shaving comb 5 fastened to the housing 2. The blade blade 6 is therefore held exclusively via the contact edge 31 in contact with the shaving comb 5. By means of the pressure force exerted by the pressure spring (s) on the support body 7 on the support edge 31 and the blade blade 6, a deformation of the support edge 31 and the blade blade 6, which is made of a plastic material, occurs, the moment of resistance of which in the pressure direction of the pressure springs 8 shows a slight deflection allowed. The elastic and / or plastic deformation of the support edge 31 in combination with the deflection of the blade blade 6 causes the blade blade to lie in an excellent manner against the shaving comb, in particular in the cutting area of the cutting teeth of the blade blade and shaving comb, which is distinguished by the particularly good cutting performance of the long-hair cutting device .

Das Ausführungsbeispiel nach Fig. 3 zeigt den oberen Teil eines an einem Rasierapparat vorgesehenen, die Langhaarschneideinrichtung aufnehmenden Schaltschiebers 35, mittels dem die Langhaarschneideinrichtung am Rasierapparat verschiebbar vorgesehen werden kann. Die längsseitigen Enden des abgewinkelten Scherkammes 5 sind auf dem Gehäuse 2 des Schaltschiebers 35 - aus der Schnittdarstellung nicht ersichtlich - befestigt. Der Tragkörper 7 ist zwischen der Gehäusewand 2.1 des Schaltschiebers 35 und der abgewinkelten Wand 36 des Scherkammes 5 gleitend gelagert. Mittels sich einerseits an der Stützleiste 4 der Gehäusewand 2.1 abstützenden und andererseits auf den Tragkörper 7 einwirkenden Andruckfedern 8 - von denen nur eine dargestellt ist - wird deren Andruckkraft über die Auflagekante 31 auf das Klingenblatt 6 übertragen. Das mit dem Mitnehmer 18 gekoppelte Klingenblatt 6 - wie ersichtlich - wird im montierten Zustand nur von der am Tragkörper angeformten Auflagekante 31 getragen. Die sich zum Klingenblatt 6 verjüngend ausgebildete Auflagekante 31 liegt im Bereich des Zahngrundes 32 am Klingenblatt 6 an und bewirkt eine gute Anlage der Anlageflächen 24 und 25 von Klingenblatt und Scherkamm unter Einwirkung der Andruckkraft der Andruckfedern 8, insbesondere im Schneidbereich der Schneidzähne 30 des Klingenblattes und der Schneidzähne 37 des Scherkammes. Die aus einem plastischen Material bestehende Auflagekante 31 erstreckt sich über die gesamte Länge von Klingenblatt 6 und Scherkamm 5 und bewirkt mittels elastischer und plastischer Verformung sowie einer leichten Durchbiegung des Klingenblattes eine hervorragende Anlage der Anlageflächen 24 und 25 über deren gesamte Längserstreckung, insbesondere im Schneidbereich der Schneidzähne 30 und 37.The exemplary embodiment according to FIG. 3 shows the upper part of a switch slide 35 provided on a shaving apparatus and receiving the long-hair cutting device, by means of which the long-hair cutting device can be displaceably provided on the shaving apparatus. The longitudinal ends of the angled shear comb 5 are fastened to the housing 2 of the slide switch 35 - not shown in the sectional view. The support body 7 is slidably mounted between the housing wall 2.1 of the slide switch 35 and the angled wall 36 of the shear comb 5. By means of pressure springs 8 - of which only one is shown - which are supported on the support strip 4 of the housing wall 2.1 and on the other hand act on the supporting body 7 - their pressure force is transmitted to the blade blade 6 via the contact edge 31. The blade blade 6 coupled to the driver 18 - as can be seen - is only in the assembled state by the support edge formed on the support body 31 worn. The support edge 31, which tapers to the blade blade 6, lies in the area of the tooth base 32 on the blade blade 6 and brings about a good contact of the contact surfaces 24 and 25 of the blade blade and shaving comb under the action of the pressing force of the pressure springs 8, in particular in the cutting area of the cutting teeth 30 of the blade blade and the cutting teeth 37 of the shaving comb. The support edge 31, which is made of a plastic material, extends over the entire length of the blade blade 6 and shear comb 5 and, by means of elastic and plastic deformation and a slight deflection of the blade blade, causes the contact surfaces 24 and 25 to lie perfectly over their entire longitudinal extent, in particular in the cutting area of the Cutting teeth 30 and 37.

Zwecks Reibungsverminderung zwischen Klingenblatt 6 und Scherkamm 5 weist die Gleitfläche 25 eine U-förmige Vertiefung 38 - Fig. 3 -oder eine Unterbrechung auf, die beispielsweise durch eine entsprechende Formgebung eines aus einem Blechstreifen gefalteten Scherkammes herstellbar ist - Fig. 1 - .In order to reduce friction between the blade blade 6 and the shaving comb 5, the sliding surface 25 has a U-shaped recess 38 (FIG. 3) or an interruption, which can be produced, for example, by appropriate shaping of a shaving comb folded from a sheet metal strip (FIG. 1).

Claims (7)

  1. A long-hair trimming device for dry shaving apparatus, with a cutting comb (5) arranged fast with a housing (2) and having an abutment surface (25) for engagement with an abutment surface (24) of a cutting blade (6) which is coupled to a carrier body (7) via at least one driving member (18), the carrier body being adapted to be driven by a drive means (10), and with at least one pressure spring (8) bearing with one end against the carrier body (7) while its other end takes support upon the housing (2), characterized in that the carrier body (7) provides on the side close to the cutting teeth (30) of the cutting blade (6) a slightly protruding seating edge (31) made of a plastics material and having its cross-sectional profile tapering in the direction of the cutting blade (6), that the seating edge (31) rests against the cutting blade (6) in the entire area of the root (32) of the cutting teeth (30), and that relative abutting engagement of the cutting blade (6) and the cutting comb (5) is accomplished by deformation of the seating edge (31) and the cutting blade (6) by means of the force the pressure spring (8) exerts through the carrier body (7) on the seating edge (31) and on the cutting blade (6).
  2. The long-hair trimming device as claimed in claim 1, characterized in that the seating edge (31) is formed integral with the carrier body (7).
  3. The long-hair trimming device as claimed in any one of the preceding claims, characterized in that the cross-sectional profile of the seating edge (31) is of a triangular configuration.
  4. The long-hair trimming device as claimed in any one of the preceding claims, characterized in that the seating edge (31), in extending in an elongation of the front side wall (34) of the carrier body (7), is provided on the upper side wall (33) thereof.
  5. The long-hair trimming device as claimed in any one of the claims 1 to 3, characterized in that the seating edge (31) is arranged to protrude relative to the upper side wall (33) and the front side wall (34).
  6. The long-hair trimming device as claimed in claim 1, characterized in that the seating edge (31) is both elastically and plastically deformable.
  7. The long-hair trimming device as claimed in claim 1, characterized in that the cutting blade (6) has a low moment of resistance in the direction of action of the pressure springs (8).
EP89107310A 1988-06-04 1989-04-22 Long hair cutter for a dry-shaver Expired - Lifetime EP0345449B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89107310T ATE79795T1 (en) 1988-06-04 1989-04-22 LONG HAIR CUTTER FOR DRY SHAVERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3819055A DE3819055A1 (en) 1988-06-04 1988-06-04 LONG HAIR CUTTER FOR DRY SHAVERS
DE3819055 1988-06-04

Publications (3)

Publication Number Publication Date
EP0345449A2 EP0345449A2 (en) 1989-12-13
EP0345449A3 EP0345449A3 (en) 1990-08-01
EP0345449B1 true EP0345449B1 (en) 1992-08-26

Family

ID=6355861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107310A Expired - Lifetime EP0345449B1 (en) 1988-06-04 1989-04-22 Long hair cutter for a dry-shaver

Country Status (6)

Country Link
US (1) US4932121A (en)
EP (1) EP0345449B1 (en)
JP (1) JP2693230B2 (en)
AT (1) ATE79795T1 (en)
DE (2) DE3819055A1 (en)
ES (1) ES2034466T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925006C1 (en) * 1989-07-28 1990-10-31 Braun Ag, 6000 Frankfurt, De
US5405574A (en) * 1992-02-10 1995-04-11 Iap Research, Inc. Method for compaction of powder-like materials
US6047926A (en) 1996-06-28 2000-04-11 Alliedsignal Inc. Hybrid deicing system and method of operation
US6360992B1 (en) 1996-06-28 2002-03-26 Honeywell International Inc. Hybrid deicing system and method of operation
DE19944616C1 (en) 1999-09-17 2000-12-28 Braun Gmbh Long hair trimming system for electric razor has toothed trimming comb and cooperating cutting blade with trimming teeth pressed against runing surface provided by trimming comb by spring element
US6639177B2 (en) 2001-03-29 2003-10-28 Gsi Lumonics Corporation Method and system for processing one or more microstructures of a multi-material device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222781A (en) * 1963-04-05 1965-12-14 Oster Mfg Co John Hair clipper
DE2836959C2 (en) * 1978-08-24 1983-04-28 Braun Ag, 6000 Frankfurt Long hair clip, for dry razors
NL8204808A (en) * 1982-12-13 1984-07-02 Philips Nv HAIR CUTTING DEVICE.
DE3303989C2 (en) * 1983-02-05 1984-12-06 Braun Ag, 6000 Frankfurt Long hair trimmer for dry razor

Also Published As

Publication number Publication date
DE3819055A1 (en) 1989-12-07
EP0345449A2 (en) 1989-12-13
US4932121A (en) 1990-06-12
DE3819055C2 (en) 1990-07-12
DE58902122D1 (en) 1992-10-01
JPH0226588A (en) 1990-01-29
JP2693230B2 (en) 1997-12-24
EP0345449A3 (en) 1990-08-01
ATE79795T1 (en) 1992-09-15
ES2034466T3 (en) 1993-04-01

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