EP1694475A1 - Cutting head for an electric hair cutting machine - Google Patents

Cutting head for an electric hair cutting machine

Info

Publication number
EP1694475A1
EP1694475A1 EP04803551A EP04803551A EP1694475A1 EP 1694475 A1 EP1694475 A1 EP 1694475A1 EP 04803551 A EP04803551 A EP 04803551A EP 04803551 A EP04803551 A EP 04803551A EP 1694475 A1 EP1694475 A1 EP 1694475A1
Authority
EP
European Patent Office
Prior art keywords
cutting head
cutting
knife
head according
cutting knife
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
EP04803551A
Other languages
German (de)
French (fr)
Other versions
EP1694475B1 (en
Inventor
Klaus Worgull
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.)
Procter and Gamble Deutschland GmbH
Original Assignee
Wella 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 Wella GmbH filed Critical Wella GmbH
Publication of EP1694475A1 publication Critical patent/EP1694475A1/en
Application granted granted Critical
Publication of EP1694475B1 publication Critical patent/EP1694475B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/40—Lubricating
    • 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
    • B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3846—Blades; Cutters

Definitions

  • the invention relates to a cutting head for an electric hair clipper according to the preamble of claim 1.
  • a cutting head forming the genus for an electric hair clipper is known for example from EP0856386B1.
  • a top cutter is driven by an electric motor and an eccentric oscillating through back and forth movements, the hair being cut between a fixed bottom cutter and the movable top cutter.
  • the cutting edges between the two knives are sharp and that there is no gap or play between them. Due to the oblique arrangement when cutting the hair between the fixed and the movable knife, these have a wedge effect, which can lead to the gap and thereby significantly impair the cutting performance. To avoid this, the moving
  • the object of the invention is therefore the above. Avoid disadvantages with a hair clipper of the same type.
  • FIG. 1 is a side view of a cutting head with a section through a lower cutter, upper cutter and a cutting knife.
  • FIG. 2 shows the cutting head according to FIG. 1, which is connected to a hair clipper;
  • Fig. 3 is a sectional view according to section HI-MI of FIG. 1;
  • 4 shows a top view IV-IV according to FIG. 1, but without a cutting knife and hair length adjustment device;
  • 5 shows a plan view of an underside of the cutting head;
  • FIG. 6 shows a side view VI-VI of the shear blades according to FIG. 4;
  • 7 is a side view of the cutting knife with a driver;
  • FIG. 8 shows a top view VIII-VIII of the cutting knife according to FIG. 7;
  • FIG. 9 is a side view IX-IX of the shear knife according to Fig. 6;
  • FIG. 10 shows a side view X-X of the shear knife according to FIG. 6;
  • 11 shows a plan view of the cutting head with a parallel guidance of the cutting knife;
  • Fig. 12 is a rear view of the cutting head according to Fig. 11, and
  • FIG. 13 is a sectional side view of a cutting head according to the prior art, which is connected to a hair clipper.
  • FIG. 1 shows a cutting head 1 with a lower and upper cutter 2,3 for an electric hair clipper 4 (FIG. 2), the lower and upper cutter 2,3 being firmly connected to one another.
  • a slot 31 is arranged between the lower and upper cutter blades 2, 3, in which a cutting blade 5 made of a flat material 7 is received, which can be driven in an oscillating manner by a driver 12.
  • the cutting knife 5 is provided at the end with a cutting tooth 6 (FIG. 8), which corresponds with a shear knife toothing 19 of the lower shear knife 2 and with a shear knife toothing 19 of the upper shear knife 3.
  • the cutting knife 5 is made from a thin flat material 7, preferably from a hard metal sheet 7.1, which leads to an extreme
  • the cutting knife 5 is preferably provided with a material thickness S of approximately 0.1 to 1.0 mm. Since the low-mass cutting knife 5 is also driven without contact pressure, a significantly lower drive energy is required and largely prevents disturbing vibrations on the housing 17
  • the fact that the low-mass cutting knife 5 is also driven without contact pressure results in extremely low friction and thus only extremely low oil consumption.
  • the cutting knife 5 is guided between the two fixed shaving knives 2, 3.
  • the guide width B between the two shear knives 2, 3 can be adapted exactly to the thickness S of the movable cutting knife 5 with a minimum of play, so that an additional contact force is unnecessary.
  • the cutting head 1 with an integrated
  • Hair length cut adjustment device 9 is provided, whereby the cutting knife 5 in the slot 31 in the arrow direction (arrow 32) can be moved manually via a lever 33.
  • This hair length cut adjustment device 9 is basically known from the above. EP0856386B1, in particular from FIGS. 1 to 5 along with a corresponding description, wherein instead of the lower shear knife here both mutually fixed shear knives 2, 3 can be displaced / adjusted relative to the cutting knife 5.
  • the cutting head 5 is designed as a structural unit 34 and can be locked with the hair clipper 4 (FIG. 2).
  • the hair clipper 4 is provided with a drive motor 11 with an eccentric 13, an eccentric pin 14 driving the cutting knife 5 via the driver 12.
  • the drive motor 11 is connected via a switch 15 to an accumulator 16.
  • the cutting head 1 can be completely encapsulated.
  • the intermediate space 10 can be used for a lubricant reservoir 8, as a result of which manual refilling is largely eliminated.
  • a closed design of the cutting head 1 avoids any contact of the movable cutting knife 5 with a person's scalp. This enables a further distance between the cutting knife 5 and the housing 17 without risk of injury and improved handling when working with the hair clipper 4.
  • FIG. 3 shows the cutting head 1 after section III-III according to FIG. 1 with a section through the bottom knife 2, top knife 3 and the cutting knife 5.
  • the oscillating cutting knife 5 arranged, which is here with its cutting teeth 6 in the direction of the arrow (arrow 35) shortly before a cut of several hairs 18 (only indicated here in principle).
  • the lower shear knife 2 and upper shear knife 3 are aligned with the same opposing shear knife teeth 19 at equal intervals, the cutting teeth 6 of the cutting knife 5 being arranged at smaller intervals so that the hair 18 is cut in all tooth gaps 20 not at the same time, but offset become.
  • a tooth ratio of 1.5 (shear teeth 19) to 1.3 (cutting teeth 6) has proven successful.
  • FIG. 4 shows a top view IV-IV of the cutting head 1 according to FIG. 1, but without a cutting knife 5 and hair length adjustment device 9.
  • FIG. 5 shows a top view of an underside of the complete cutting head 1 with two fastening screws 40, 41 for fastening a stationary eccentric part 42 (FIG. 1).
  • FIG. 6 shows a side view VI-VI of the two shear blades 2, 3 according to FIG. 4.
  • FIG. 7 shows a side view of the cutting knife 5 with a driver 12 and a connecting rail 43 which is firmly connected (for example glued) to the cutting knife 5.
  • FIG. 8 shows a top view VIII-VIII of the cutting knife 5 according to FIG. 7.
  • a spring leg receptacle 44, 45 each with a bore 46, 47 for receiving legs 38, 39 of a spring 37 ( Fig. 11) arranged.
  • FIG. 9 shows a side view IX-IX of the shear knives 2, 3 according to FIG. 6, the slot 31 for receiving the cutting knife 5 clearly being shown here.
  • the slot 31 is arranged continuously; but it is also possible to provide the slot 31 to just before the ends of the shear blade teeth 19 and to provide a common rounding.
  • FIG. 10 shows a side view X-X of the shear blades 2, 3 according to FIG. 6.
  • FIG. 11 shows a plan view of the cutting head 1, the lower and upper blades 2, 3 and the stationary eccentric part 42 having been removed so that a spring 37 can be seen more clearly.
  • the lever 33 for manual adjustment of the cutting knife 5 was indicated in dashed lines.
  • the cutting knife 5 is guided by a parallel guide 36 by means of the one-piece, U-shaped spring 37 through two legs 38, 39, for which purpose the cutting knife 5 is provided with corresponding leg end receptacles 40, 41.
  • the two bores 46, 47 serve to receive the angled ends of the legs 38, 39.
  • the spring 37 is embedded in a carriage 48 so that the cutting knife 5 can move in parallel.
  • the slide 48 has a sliding surface 49, indicated by a dotted line, which corresponds to a flat surface 50 (FIG. 4) of the lower cutter 2.
  • FIG. 12 shows a rear view of the cutting head 1 according to FIG. 11, two latching hooks 50, 51 being shown here, which are made in one piece with the slide 48 Are connected plastic and serve to lock on the hair clipper 4.
  • FIG. 13 shows - in comparison to FIG. 2 - in a sectional side view a cutting head 1.1 according to the prior art, which with a
  • Hair clipper 4 is connected. It is also clear here that a design-related gap 21 (due to the swinging top knife) between the cutting head 1.1 and the housing 17 causes contamination by fine hair particles in the intermediate space 10, which is prevented according to the exemplary embodiment according to FIG. 2.

Abstract

The trimming head has a lower fixed blade comb (2) in the normal way with a similar fixed blade comb (3) above separated by a gap (31) in which a thin toothed blade (5) is oscillated to and fro by an electric motor drive unit through a block (12).

Description

Schneidkopf für eine elektrische Haarschneidemaschine Cutting head for an electric hair clipper
Die Erfindung betrifft einen Schneidkopf für eine elektrische Haarschneidemaschine nach der Gattung des Oberbegriffs des Anspruchs 1 .The invention relates to a cutting head for an electric hair clipper according to the preamble of claim 1.
Ein die Gattung bildender Schneidkopf für eine elektrische Haarschneidemaschine ist beispielsweise aus der EP0856386B1 bekannt. Hierbei wird bei dem Schneidkopf ein Oberschermesser mittels eines elektrischen Motors und eines Exzenters oszillierend durch Hin- und Herbewegungen angetrieben, wobei ein Schneiden der Haare zwischen einem festen Unterschermesser und dem beweglichen Oberschermesser erfolgt. Zum Schneiden der Haare ist es wichtig, dass die Schneidkanten zwischen den beiden Messern scharf sind und dazwischen möglichst kein Spalt bzw. Spiel vorhanden ist. Auf Grund der schrägen Anordnung beim Schneiden der Haare zwischen dem festen und dem beweglichen Messer haben diese eine Keilwirkung, was zu dem Spalt führen kann und dadurch die Schneidleistung wesentlich verschlechtert. Um dies zu vermeiden, wird das beweglicheA cutting head forming the genus for an electric hair clipper is known for example from EP0856386B1. Here, in the cutting head, a top cutter is driven by an electric motor and an eccentric oscillating through back and forth movements, the hair being cut between a fixed bottom cutter and the movable top cutter. To cut the hair, it is important that the cutting edges between the two knives are sharp and that there is no gap or play between them. Due to the oblique arrangement when cutting the hair between the fixed and the movable knife, these have a wedge effect, which can lead to the gap and thereby significantly impair the cutting performance. To avoid this, the moving
Oberschermesser mit hoher Federkraft auf das Unterschermesser gedrückt und entsprechend stabil dimensioniert. Auf Grund der stabilen und damit schweren (massiven) Ausführung des beweglichen Oberschermessers und der Reibung durch die erforderliche Anpresskraft wird eine hohe Antriebsenergie benötigt, was einen relativ schweren Antriebsmotor und bei einer kabellosen Haarschneidemaschine zusätzlich einen relativ schweren Akkumulator erforderlich macht. Außerdem werden starke Beschleunigungskräfte als störende Schwingungen auf das Haarschneidemaschinengehäuse übertragen.Upper knife with high spring force pressed onto the lower knife and dimensioned accordingly stable. Due to the stable and therefore heavy (massive) design of the movable top knife and the friction due to the required contact pressure, a high drive energy is required, which makes a relatively heavy drive motor and, in the case of a wireless hair clipper, also a relatively heavy accumulator necessary. In addition, strong acceleration forces are transmitted to the hair clipper housing as disturbing vibrations.
Aufgabe der Erfindung ist es daher, die o.g. Nachteile bei einer gattungsgleichen Haarschneidemaschine zu vermeiden.The object of the invention is therefore the above. Avoid disadvantages with a hair clipper of the same type.
Diese Aufgabe wird nach den Merkmalen des kennzeichnenden Teils des Anspruchs 1 gelöst. Weitere vorteilhafte Weiterbildungen/ Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.This object is achieved according to the features of the characterizing part of claim 1. Further advantageous developments / refinements of the invention emerge from the subclaims.
Dadurch, dass bei einem Schneidkopf mit einem Unter- und einem Oberschermesser für eine elektrische Haarschneidemaschine vorgesehen ist, das Unter- und das Oberschermesser miteinander fest zu verbinden, wobei in einem Schlitz zwischen dem Unter- und dem Oberschermesser ein oszillierend antreibbares aus einem Flachmaterial hergestelltes Schneidmesser mit einer Schneidzahnung angeordnet ist, werden die oben genannten Nachteile vermieden.The fact that in a cutting head with a lower and upper cutter for an electric hair clipper is provided, the lower and upper cutters are to be firmly connected to one another, wherein in The above-mentioned disadvantages are avoided in a slot between the lower and the upper cutter, an oscillatingly drivable cutting knife made of a flat material and having a cutting tooth.
Die Erfindung wird an Hand eines Ausführungsbeispiels näher erläutert.The invention is explained in more detail using an exemplary embodiment.
Es zeigt:It shows:
Fig. 1 in einer Seitenansicht einen Schneidkopf mit einem Schnitt durch ein Unterschermesser, Oberschermesser und einem Schneidmesser; Fig. 2 den Schneidkopf nach der Fig. 1 , der mit einer Haarschneidemaschine verbunden ist; Fig. 3 eine Schnittdarstellung nach Schnitt HI-MI nach der Fig. 1 ; Fig. 4 eine Draufsicht IV-IV nach der Fig.1 , jedoch ohne Schneidmesser und Haarlängenschnittverstelleinrichtung; Fig. 5 eine Draufsicht auf eine Unterseite des Schneidkopfes; Fig. 6 eine Seitenansicht Vl-Vl der Schermesser nach der Fig. 4; Fig. 7 eine Seitenansicht des Schneidmessers mit einem Mitnehmer; Fig. 8 eine Draufsicht Vlll-Vlll auf das Schneidmesser nach der Fig. 7; Fig. 9 eine Seitenansicht IX-IX der Schermesser nach der Fig. 6; Fig. 10 eine Seitenansicht X-X der Schermesser nach der Fig. 6; Fig. 11 eine Draufsicht auf den Schneidkopf mit einer Parallelführung des Schneidmessers; Fig. 12 eine Rückansicht des Schneidkopfs nach der Fig. 11 , undFigure 1 is a side view of a cutting head with a section through a lower cutter, upper cutter and a cutting knife. FIG. 2 shows the cutting head according to FIG. 1, which is connected to a hair clipper; Fig. 3 is a sectional view according to section HI-MI of FIG. 1; 4 shows a top view IV-IV according to FIG. 1, but without a cutting knife and hair length adjustment device; 5 shows a plan view of an underside of the cutting head; FIG. 6 shows a side view VI-VI of the shear blades according to FIG. 4; 7 is a side view of the cutting knife with a driver; FIG. 8 shows a top view VIII-VIII of the cutting knife according to FIG. 7; Fig. 9 is a side view IX-IX of the shear knife according to Fig. 6; FIG. 10 shows a side view X-X of the shear knife according to FIG. 6; 11 shows a plan view of the cutting head with a parallel guidance of the cutting knife; Fig. 12 is a rear view of the cutting head according to Fig. 11, and
Fig. 13 in einer geschnittenen Seitenansicht einen Schneidkopf nach dem Stand der Technik, der mit einer Haarschneidemaschine verbunden ist.13 is a sectional side view of a cutting head according to the prior art, which is connected to a hair clipper.
Die Fig. 1 zeigt einen Schneidkopf 1 mit einem Unter- und Oberschermesser 2,3 für eine elektrische Haarschneidemaschine 4 (Fig. 2), wobei das Unter- und Oberschermesser 2,3 miteinander fest verbunden sind. Zwischen dem Unter- und dem Oberschermesser 2,3 ist ein Schlitz 31 angeordnet, in dem ein aus einem Flachmaterial 7 hergestelltes Schneidmesser 5 aufgenommen ist, welches durch einen Mitnehmer 12 oszillierend antreibbar ist. Das Schneidmesser 5 ist endseitig mit einer Schneidzahnung 6 (Fig. 8) versehen, die mit einer Schermesserzahnung 19 des Unterschermessers 2 und mit einer Schermesserzahnung 19 des Oberschermessers 3 korrespondiert.1 shows a cutting head 1 with a lower and upper cutter 2,3 for an electric hair clipper 4 (FIG. 2), the lower and upper cutter 2,3 being firmly connected to one another. A slot 31 is arranged between the lower and upper cutter blades 2, 3, in which a cutting blade 5 made of a flat material 7 is received, which can be driven in an oscillating manner by a driver 12. The cutting knife 5 is provided at the end with a cutting tooth 6 (FIG. 8), which corresponds with a shear knife toothing 19 of the lower shear knife 2 and with a shear knife toothing 19 of the upper shear knife 3.
Das Schneidmesser 5 ist aus einem dünnen Flachmaterial 7 hergestellt, vorzugsweise aus einem harten Metallblech 7.1 , was zu einer extremenThe cutting knife 5 is made from a thin flat material 7, preferably from a hard metal sheet 7.1, which leads to an extreme
Massereduzierung führt und zudem kostengünstig herstellbar ist. Vorzugsweise ist das Schneidmesser 5 mit einer Materialstärke S von ungefähr 0,1 bis 1 ,0 mm versehen. Da das massearme Schneidmesser 5 zudem ohne Anpresskraft angetrieben wird, ist eine wesentlich geringere Antriebsenergie erforderlich und unterbindet weitgehend störende Schwingungen am Gehäuse 17 derMass reduction leads and is also inexpensive to manufacture. The cutting knife 5 is preferably provided with a material thickness S of approximately 0.1 to 1.0 mm. Since the low-mass cutting knife 5 is also driven without contact pressure, a significantly lower drive energy is required and largely prevents disturbing vibrations on the housing 17
Haarschneidemaschine 4. Dadurch, dass das massearme Schneidmesser 5 zudem ohne Anpresskraft angetrieben wird, ergibt sich eine äußerst geringe Reibung und damit nur ein äußerst geringer Ölverbrauch. Um das Gewicht der beiden Schermesser 2,3 zu reduzieren, ist das Schneidmesser 5 zwischen den beiden festen Schermessern 2,3 geführt. Die Führungsbreite B zwischen den beiden Schermessern 2,3 kann genau der Stärke S des beweglichen Schneidmessers 5 mit einem kleinsten Spiel angepasst werden, womit eine zusätzliche Anpresskraft überflüssig ist.Hair clipper 4. The fact that the low-mass cutting knife 5 is also driven without contact pressure results in extremely low friction and thus only extremely low oil consumption. In order to reduce the weight of the two shaving knives 2, 3, the cutting knife 5 is guided between the two fixed shaving knives 2, 3. The guide width B between the two shear knives 2, 3 can be adapted exactly to the thickness S of the movable cutting knife 5 with a minimum of play, so that an additional contact force is unnecessary.
Wahlweise ist der Schneidkopf 1 mit einer integriertenOptionally, the cutting head 1 with an integrated
Haarlängenschnittverstelleinrichtung 9 versehen, womit das Schneidmesser 5 im Schlitz 31 in Pfeilrichtung (Pfeil 32) über einen Hebel 33 manuell verschiebbar ist. Diese Haarlängenschnittverstelleinrichtung 9 ist grundsätzlich bekannt aus der o.g. EP0856386B1 , insbesondere aus den Fig. 1 bis 5 nebst entsprechender Beschreibung, wobei anstelle des Unterschermessers hier beide miteinander feste Schermesser 2,3 relativ zum Schneidmesser 5 verschiebbar/ verstellbar sind. Der Schneidkopf 5 ist als eine Baueinheit 34 ausgebildet und mit der Haarschneidemaschine 4 (Fig. 2) verrastbar ausgebildet.Hair length cut adjustment device 9 is provided, whereby the cutting knife 5 in the slot 31 in the arrow direction (arrow 32) can be moved manually via a lever 33. This hair length cut adjustment device 9 is basically known from the above. EP0856386B1, in particular from FIGS. 1 to 5 along with a corresponding description, wherein instead of the lower shear knife here both mutually fixed shear knives 2, 3 can be displaced / adjusted relative to the cutting knife 5. The cutting head 5 is designed as a structural unit 34 and can be locked with the hair clipper 4 (FIG. 2).
Fig. 2 zeigt den mit einer Haarschneidemaschine 4 verbundenen Schneidkopf 1. Die Haarschneidemaschine 4 ist mit einem Antriebsmotor 11 mit einem Exzenter 13 versehen, wobei ein Exzenter-Zapfen 14 das Schneidmesser 5 über den Mitnehmer 12 antreibt. Der Antriebsmotor 11 ist über einen Schalter 15 mit einem Akkumulator 16 verbunden. Zur Vermeidung einer Verschmutzung in einem Zwischenraum 10 von Antriebsmotor 1 1 und dem Schneidkopf 1 kann der Schneidkopf 1 vollkommen gekapselt aufgebaut sein. Außerdem kann der Zwischenraum 10 für ein Schmiermittel-Reservoir 8 genutzt werden, wodurch ein manuelles Nachfüllen weitgehenst entfällt.2 shows the cutting head 1 connected to a hair clipper 4. The hair clipper 4 is provided with a drive motor 11 with an eccentric 13, an eccentric pin 14 driving the cutting knife 5 via the driver 12. The drive motor 11 is connected via a switch 15 to an accumulator 16. To avoid contamination in an intermediate space 10 between the drive motor 11 and the cutting head 1, the cutting head 1 can be completely encapsulated. In addition, the intermediate space 10 can be used for a lubricant reservoir 8, as a result of which manual refilling is largely eliminated.
Durch eine geschlossene Bauform des Schneidkopfs 1 wird jeglicher Kontakt des beweglichen Schneidmessers 5 zu einer Kopfhaut einer Person vermieden. Dies ermöglicht einen weiteren Abstand des Schneidmessers 5 zum Gehäuse 17 ohne Verletzungsgefahr und verbesserte Handhabung beim Arbeiten mit der Haarschneidemaschine 4.A closed design of the cutting head 1 avoids any contact of the movable cutting knife 5 with a person's scalp. This enables a further distance between the cutting knife 5 and the housing 17 without risk of injury and improved handling when working with the hair clipper 4.
Fig. 3 zeigt den Schneidkopf 1 nach Schnitt lll-lll nach der Fig. 1 mit einem Schnitt durch das Unterschermesser 2, Oberschermesser 3 und dem Schneidmesser 5. Zwischen dem feststehenden Unterschermesser 2 und dem feststehenden Oberschermesser 3 ist das hin- und herschwingende Schneidmesser 5 angeordnet, das hier mit seiner Schneidzahnung 6 in Pfeilrichtung (Pfeil 35) kurz vor einem Schnitt von mehreren Haaren 18 (hier nur prinzipiell angedeutet) steht. Das Unterschermesser 2 und Oberschermesser 3 sind in einer Flucht mit einer gleichen gegenüberliegenden Schermesser- Zahnung 19 in gleichen Abständen versehen, wobei die Schneidzahnung 6 des Schneidmessers 5 in kleineren Abständen angeordnet ist, damit die Haare 18 in allen Zahnlücken 20 nicht zeitgleich, sondern versetzt geschnitten werden. In der Praxis hat sich ein Zahnungsverhältnis von 1 ,5 (Schermesserzahnung 19) zu 1 ,3 (Schneidzahnung 6) bewährt. Damit bei der Herstellung derFIG. 3 shows the cutting head 1 after section III-III according to FIG. 1 with a section through the bottom knife 2, top knife 3 and the cutting knife 5. Between the fixed bottom knife 2 and the fixed top knife 3 there is the oscillating cutting knife 5 arranged, which is here with its cutting teeth 6 in the direction of the arrow (arrow 35) shortly before a cut of several hairs 18 (only indicated here in principle). The lower shear knife 2 and upper shear knife 3 are aligned with the same opposing shear knife teeth 19 at equal intervals, the cutting teeth 6 of the cutting knife 5 being arranged at smaller intervals so that the hair 18 is cut in all tooth gaps 20 not at the same time, but offset become. In practice, a tooth ratio of 1.5 (shear teeth 19) to 1.3 (cutting teeth 6) has proven successful. Thus in the manufacture of the
Schneidzahnung 6 kein Grat entsteht (wie es beim Stanzen der Fall wäre), wird diese durch Erodieren erzielt.Cutting tooth 6 no burr occurs (as would be the case with punching), this is achieved by eroding.
Fig. 4 zeigt eine Draufsicht IV-IV auf den Schneidkopf 1 nach der Fig.1 , jedoch ohne Schneidmesser 5 und Haarlängenschnittverstelleinrichtung 9.FIG. 4 shows a top view IV-IV of the cutting head 1 according to FIG. 1, but without a cutting knife 5 and hair length adjustment device 9.
Fig. 5 zeigt eine Draufsicht auf eine Unterseite des kompletten Schneidkopfs 1 mit zwei Befestigungsschrauben 40,41 zum Befestigen eines ortsfesten Exzenterteils 42 (Fig. 1 ). Fig. 6 zeigt eine Seitenansicht Vl-Vl der beiden Schermesser 2,3 nach der Fig. 4.FIG. 5 shows a top view of an underside of the complete cutting head 1 with two fastening screws 40, 41 for fastening a stationary eccentric part 42 (FIG. 1). FIG. 6 shows a side view VI-VI of the two shear blades 2, 3 according to FIG. 4.
Fig. 7 zeigt eine Seitenansicht des Schneidmessers 5 mit einem Mitnehmer 12 und einer Verbindungsschiene 43, die mit dem Schneidmesser 5 fest verbunden (beispielsweise verklebt) ist.FIG. 7 shows a side view of the cutting knife 5 with a driver 12 and a connecting rail 43 which is firmly connected (for example glued) to the cutting knife 5.
Fig. 8 zeigt eine Draufsicht VIII-VIII auf das Schneidmesser 5 nach der Fig. 7. An beiden Seiten der Verbindungsschiene 43 ist jeweils eine Federschenkelaufnahme 44,45 mit jeweils einer Bohrung 46,47 zur Aufnahme von Schenkeln 38,39 einer Feder 37 (Fig. 11 ) angeordnet.8 shows a top view VIII-VIII of the cutting knife 5 according to FIG. 7. On both sides of the connecting rail 43 there is a spring leg receptacle 44, 45, each with a bore 46, 47 for receiving legs 38, 39 of a spring 37 ( Fig. 11) arranged.
Fig. 9 zeigt eine Seitenansicht IX-IX der Schermesser 2,3 nach der Fig. 6, wobei hier deutlich der Schlitz 31 zur Aufnahme des Schneidmessers 5 hervorgeht. In diesem Ausführungsbeispiel ist der Schlitz 31 durchgehend angeordnet; es ist aber auch möglich, den Schlitz 31 bis kurz vor den Enden der Schermesserzahnung 19 vorzusehen und mit einer gemeinsamen Rundung zu versehen.FIG. 9 shows a side view IX-IX of the shear knives 2, 3 according to FIG. 6, the slot 31 for receiving the cutting knife 5 clearly being shown here. In this embodiment, the slot 31 is arranged continuously; but it is also possible to provide the slot 31 to just before the ends of the shear blade teeth 19 and to provide a common rounding.
Fig. 10 zeigt eine Seitenansicht X-X der Schermesser 2,3 nach der Fig. 6.FIG. 10 shows a side view X-X of the shear blades 2, 3 according to FIG. 6.
Fig. 11 zeigt eine Draufsicht auf den Schneidkopf 1 , wobei das Unter- und Oberschermesser 2,3 und der ortsfeste Exzenterteil 42 entfernt wurden, damit eine Feder 37 besser ersichtlich ist. Der Hebel 33 zum manuellen Verstellen des Schneidmessers 5 wurde gestrichelt angedeutet. Das Schneidmesser 5 wird von einer Parallelführung 36 mittels der einteiligen, U-förmigen Feder 37 durch zwei Schenkeln 38,39 geführt, wozu das Schneidmesser 5 mit entsprechenden Schenkelendenaufnahmen 40,41 versehen ist. Die beiden Bohrungen 46,47 dienen zur Aufnahme der abgewinkelten Enden der Schenkel 38,39. Die Feder 37 ist in einem Schlitten 48 eingebettet, so dass sich das Schneidmesser 5 parallel bewegen kann. Zum Verschieben des Schlittens 48 durch den Exzenter 13 weist der Schlitten 48 eine punktiert angedeutete Gleitfläche 49 auf, die mit einer Planfläche 50 (Fig. 4) des Unterschermessers 2 korrespondiert.11 shows a plan view of the cutting head 1, the lower and upper blades 2, 3 and the stationary eccentric part 42 having been removed so that a spring 37 can be seen more clearly. The lever 33 for manual adjustment of the cutting knife 5 was indicated in dashed lines. The cutting knife 5 is guided by a parallel guide 36 by means of the one-piece, U-shaped spring 37 through two legs 38, 39, for which purpose the cutting knife 5 is provided with corresponding leg end receptacles 40, 41. The two bores 46, 47 serve to receive the angled ends of the legs 38, 39. The spring 37 is embedded in a carriage 48 so that the cutting knife 5 can move in parallel. To move the slide 48 through the eccentric 13, the slide 48 has a sliding surface 49, indicated by a dotted line, which corresponds to a flat surface 50 (FIG. 4) of the lower cutter 2.
Fig. 12 zeigt eine Rückansicht des Schneidkopfs 1 nach der Fig. 11 , wobei hier zwei Rasthaken 50,51 ersichtlich sind, die einstückig mit dem Schlitten 48 aus Kunststoff verbunden sind und zum Verrasten an der Haarschneidemaschine 4 dienen.FIG. 12 shows a rear view of the cutting head 1 according to FIG. 11, two latching hooks 50, 51 being shown here, which are made in one piece with the slide 48 Are connected plastic and serve to lock on the hair clipper 4.
Fig. 13 zeigt - im Vergleich zu der Fig. 2 - in einer geschnittenen Seitenansicht einen Schneidkopf 1.1 nach dem Stand der Technik, der mit einerFIG. 13 shows - in comparison to FIG. 2 - in a sectional side view a cutting head 1.1 according to the prior art, which with a
Haarschneidemaschine 4 verbunden ist. Hierbei wird auch deutlich, dass ein konstruktiv bedingter Spalt 21 (durch das schwingende Oberschermesser) zwischen dem Schneidkopf 1.1 und dem Gehäuse 17 eine Verschmutzung durch feine Haarpartikel im Zwischenraum 10 herbeiführt, die nach dem Ausführungsbeispiel nach der Fig. 2 verhindert ist.Hair clipper 4 is connected. It is also clear here that a design-related gap 21 (due to the swinging top knife) between the cutting head 1.1 and the housing 17 causes contamination by fine hair particles in the intermediate space 10, which is prevented according to the exemplary embodiment according to FIG. 2.
Bezugsziffernliste:List of reference numerals:
1 Schneidkopf1 cutting head
2 Unterschermesser2 lower blades
3 Oberschermesser3 top knives
4 Haarschneidemaschine4 hair clippers
5 Schneidmesser5 cutting knives
6 Schneidzahnung6 cutting teeth
7 Flachmaterial7 flat material
7.1 Metallblech7.1 sheet metal
8 Schmiermittel-Reservoir8 Lubricant reservoir
9 Haarlängenschnittverstelleinrichtung9 hair length adjustment device
10 Zwischenraum10 space
1 1 Antriebsmotor1 1 drive motor
12 Mitnehmer12 carriers
13 Exzenter13 eccentrics
14 Exzenter-Zapfen14 eccentric pins
15 Schalter15 switches
16 Akkumulator16 accumulator
17 Gehäuse17 housing
18 Haare18 hairs
19 Schermesser-Zahnung19 shear knife teeth
20 Zahnlücke20 tooth gap
21 Spalt21 gap
31 Schlitz 32 Pfeil31 slot 32 arrow
33 Hebel33 levers
34 Baueinheit34 unit
35 Pfeil35 arrow
36 Parallelführung36 parallel guidance
37 Feder37 spring
38,39 Schenkel38.39 thighs
40,41 Befestigungsschraube40.41 mounting screw
42 Ortsfester Exzenterteil42 Fixed eccentric part
43 Verbindungsschiene43 connecting rail
44,45 Federschenkelaufnahme44.45 spring leg mount
46,47 Bohrung46.47 bore
48 Schlitten48 sledges
49 Gleitfläche49 sliding surface
50 Planfläche50 flat surface
51 ,52 Rasthaken51, 52 locking hooks
B FührungsbreiteB guide width
S Stärke/ Schneidmesser £ S strength / cutting knife £

Claims

Patentansprüche claims
1. Schneidkopf (1) mit einem Unter- und einem Oberschermesser (2,3) für eine elektrische Haarschneidemaschine (4), dadurch gekennzeichnet, dass das Unter- und das Oberschermesser (2,3) miteinander fest verbunden sind, wobei in einem Schlitz (31 ) zwischen dem Unter- und dem Oberschermesser (2,3) ein oszillierend antreibbares aus einem Flachmaterial (7) hergestelltes Schneidmesser (5) mit einer Schneidzahnung (6) angeordnet ist.1. Cutting head (1) with a lower and an upper cutter (2,3) for an electric hair clipper (4), characterized in that the lower and upper cutter (2,3) are firmly connected to each other, in a slot (31) an oscillating drivable cutting knife (5) made from a flat material (7) with a cutting toothing (6) is arranged between the lower and the upper cutter (2, 3).
2. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass als Flachmaterial (7) ein hartes Metallblech (7.1 ) vorgesehen ist.2. Cutting head according to claim 1, characterized in that a hard metal sheet (7.1) is provided as the flat material (7).
3. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass das Schneidmesser (5) eine Stärke (S) von ungefähr 0,1 bis 1 ,0 mm hat.3. Cutting head according to claim 1, characterized in that the cutting knife (5) has a thickness (S) of approximately 0.1 to 1.0 mm.
4. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass das Schneidmesser (5) mit einer Parallelführung (36) versehen ist.4. Cutting head according to claim 1, characterized in that the cutting knife (5) is provided with a parallel guide (36).
5. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass der Schneidkopf (1 ) mit einer Haarlängenschnittverstelleinrichtung (9) versehen ist.5. Cutting head according to claim 1, characterized in that the cutting head (1) is provided with a hair length adjustment device (9).
6. Schneidkopf nach Anspruch 5, dadurch gekennzeichnet, dass das Unter- und Oberschermesser (2,3) relativ zum Schneidmesser (5) verstellbar ausgebildet ist.6. Cutting head according to claim 5, characterized in that the lower and upper cutter (2,3) is adjustable relative to the cutting knife (5).
7. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass dem Schneidkopf (1 ) ein Schmiermittel-Reservoir (8) zugeordnet ist.7. Cutting head according to claim 1, characterized in that the cutting head (1) is assigned a lubricant reservoir (8).
8. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass die Haarschneidemaschine (4) mit einer Batterie oder mit einem wieder aufladbaren Akkumulator (16) betrieben ist.8. Cutting head according to claim 1, characterized in that the hair clipper (4) is operated with a battery or with a rechargeable battery (16).
9. Schneidkopf nach Anspruch 1 , dadurch gekennzeichnet, dass der Schneidkopf (5) als eine Baueinheit (34) ausgebildet ist. 9. Cutting head according to claim 1, characterized in that the cutting head (5) is designed as a structural unit (34).
10. Schneidkopf nach Anspruch 9, dadurch gekennzeichnet, dass der Schneidkopf (5) mit der Haarschneidemaschine (4) verrastbar ausgebildet ist. 10. Cutting head according to claim 9, characterized in that the cutting head (5) with the hair clipper (4) is designed to be latched.
EP04803551A 2003-12-04 2004-12-06 Cutting head for an electric hair cutting machine Not-in-force EP1694475B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356588 2003-12-04
PCT/EP2004/013846 WO2005053916A1 (en) 2003-12-04 2004-12-06 Cutting head for an electric hair cutting machine

Publications (2)

Publication Number Publication Date
EP1694475A1 true EP1694475A1 (en) 2006-08-30
EP1694475B1 EP1694475B1 (en) 2008-10-08

Family

ID=34625531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04803551A Not-in-force EP1694475B1 (en) 2003-12-04 2004-12-06 Cutting head for an electric hair cutting machine

Country Status (7)

Country Link
US (1) US8104178B2 (en)
EP (1) EP1694475B1 (en)
JP (1) JP5019512B2 (en)
CN (1) CN1882426B (en)
AT (1) ATE410275T1 (en)
DE (2) DE502004008237D1 (en)
WO (1) WO2005053916A1 (en)

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Also Published As

Publication number Publication date
US20070289138A1 (en) 2007-12-20
CN1882426A (en) 2006-12-20
JP2007512882A (en) 2007-05-24
DE502004008237D1 (en) 2008-11-20
CN1882426B (en) 2011-08-17
EP1694475B1 (en) 2008-10-08
DE102004058847A1 (en) 2005-06-30
JP5019512B2 (en) 2012-09-05
ATE410275T1 (en) 2008-10-15
WO2005053916A1 (en) 2005-06-16
US8104178B2 (en) 2012-01-31

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