EP2146827B1 - Dispositif de coupe pour la coupe des poils - Google Patents

Dispositif de coupe pour la coupe des poils Download PDF

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Publication number
EP2146827B1
EP2146827B1 EP08749292A EP08749292A EP2146827B1 EP 2146827 B1 EP2146827 B1 EP 2146827B1 EP 08749292 A EP08749292 A EP 08749292A EP 08749292 A EP08749292 A EP 08749292A EP 2146827 B1 EP2146827 B1 EP 2146827B1
Authority
EP
European Patent Office
Prior art keywords
teeth
cutting
cutting device
projections
blade
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.)
Active
Application number
EP08749292A
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German (de)
English (en)
Other versions
EP2146827A1 (fr
Inventor
Stefan FÜRST
Oliver Von Sartori-Montecroce
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
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Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP2146827A1 publication Critical patent/EP2146827A1/fr
Application granted granted Critical
Publication of EP2146827B1 publication Critical patent/EP2146827B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/06Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/10Cutting 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 cutting device for cutting hair according to the preamble of patent claim 1.
  • Such a cutting device is from the US 4,803,780 known. However, its projection-provided blade is not driven.
  • a shearing system in which the existing of an upper and lower blade cutting device is preceded by a feeder, which is oscillated relative to the upper blade and forth.
  • the delivery device should be as thorough and gentle on the hair as possible, and on the other hand, long and / or tight-fitting hairs should in particular be grasped and removed by the shearing system with a comparatively high degree of probability.
  • the feeder forms an additional reciprocating unit from the drive system which is presented to the actual cutter.
  • the object of the invention is therefore to provide a cutting device, in which with particularly simple means also closely fitting to the skin of hair caught by the teeth, threaded into the tooth spaces and finally cut off from the cutting device.
  • the edges on the teeth of the other, re-adjusted blade can be sharp-edged. Sharp-edged blades improve the erection and threading of the hair into the cutting gap, but would stress the surface of the skin more if not according to the invention, the protrusions would be located upstream of the trailing tooth tips. This results in a better shaving result with greater skin protection.
  • the blade movement expediently depends on the outer contour of the toothing and can therefore be rectilinear, curved or circular.
  • the blade provided with the projections is acted upon by the oscillating reciprocating movement, which further favors the threading of the hair in the cutting gaps.
  • the other blade forms the slender comb
  • the blade provided with the projections forms the actual knife of the cutting device.
  • the hairs are erected by the reciprocating motion of the projections and the tooth gaps of the other Blade, namely the delicate comb supplied, where they are then finally aligned, clamped between the teeth and cut off.
  • the projections are rounded all round and thus protect the skin from the sharp edges of the other, behind blade, namely the comb.
  • the moving on the skin projections could be used by special design targeted for exfoliation or loosening of the hair in the hair channel. Studies with the embodiment of the invention have shown that the loosening of the hair improved by the projections and thus just the thoroughness of the shave is increased.
  • the projections are formed in their longitudinal direction pin, pin or columnar elevations formed, the outwardly facing side wall passes continuously into the side surfaces of the respective tooth.
  • the side wall of a projection thus goes straight into the side surface of a tooth and forms an extended tip together with the respective tooth.
  • the cross section of a projection may be circular, oval, polygonal or otherwise formed, it is only important that during shaving the skin surface meets a rounded to the tip projection so as not to be injured.
  • the cross-sections of the projections as well as the tips of the teeth of the knife may also become blunt towards the edges of the blades to effect the greatest possible skin protection.
  • the projections may also be formed as rounded nubs.
  • claim 3 forms the final with the side surface of a tooth lateral surface of a projection with the side surface of the respective tooth a common plane. This avoids step transitions from the projections to the side surfaces of the teeth at the outwardly facing portions, which better protects the surface of an operator's skin during shaving.
  • the side wall of a projection tapers towards its free end. This allows a simpler manufacture of the blade, which is preferably produced in the embossing-punching process.
  • the protrusions are preferably formed out of the plane of the teeth upwards during the embossing process. Then the teeth are punched out or cut out with a laser beam.
  • the projections are provided at their end faces with outwardly curved end portions. By rounded outward free ends of the projections thus the skin is better protected during shaving.
  • the cutting device according to the invention is used as a trimmer or contour cutter, that is, the side surfaces formed at the tips of the teeth form the sliding surface opposite the skin surface of an operator.
  • trimmer or contour cutter that is, the side surfaces formed at the tips of the teeth form the sliding surface opposite the skin surface of an operator.
  • Such vertical flared trimmers are usually mounted on the front of a razor housing, as is the case for example in the marketed by the applicant "Braun Synchro".
  • the trimmer can also be folded out vertically, for example, for its use from the side wall of a razor housing.
  • the cutting device according to the invention can also be formed on a device that is used as a beard trimmer.
  • the cutting device is a short-hair cutting system upstream or downstream, ie, in one movement first engages the cutting device according to the invention, the longer hair, while then the fine cut by the downstream short-hair cutting system (consisting of perforated film and a back and forth lower knife) takes place.
  • the cutting device according to the invention forms a central cutter, which is stored between two Kurzhaarschneidesystemen.
  • the cutting device according to the invention on both sides towards freely expiring teeth, wherein protrude at the reciprocating blade at the ends of the teeth, the projections up to the comb.
  • the teeth of the blade which can be brought into contact with the skin are sheathed by the protrusions during the shaving process in both shaving directions.
  • a central cutter without the subject of the invention is, for example, the "360 ° Complete" shaver Braun, which has long been marketed by the Applicant. Pulsonic "known. In these razor types, the cutting device according to the invention could be used instead of the middle cutter known there.
  • the cutting device 1 consists of an upper blade 2 and a lower blade 3, which via successive sliding contact surfaces 4, 5 ( Fig. 2 ) are in sliding contact.
  • Comb-like teeth 8, 9 arranged in rows of teeth 27, 28, the tips 10, 11 on straight, mutually parallel lines, 36, 12 (shown here in phantom).
  • the tooth base 13 of all teeth 8, 9 lies on the straight line 37 (lower line not visible), wherein all the lines 36, 12, 37 are preferably parallel to each other.
  • the upper blade 2 forms after the FIGS. 1 to 3 in this embodiment, the actual comb of the cutting device 1, while the lower blade 3 forms the knife.
  • the knife 3 can be reciprocated in the directions P oscillating, wherein the movement P is preferably perpendicular or transverse to the extension of the teeth 8, 9 and parallel to the line 12.
  • a drive part not shown
  • an electric motor not shown
  • connectable coupling element 14 is arranged, via which the knife 3 is set in the reciprocating vibrations P.
  • a pressing device not shown in the drawing, preferably one or more springs, formed in the cutting device 1, through which the blade 3 is pressed with its contact surface 5 against the contact surface 4 of the upper blade 2.
  • the teeth 9 of the lower blade 3 extend beyond the teeth 10 of the upper blade 2 forward beyond the portion 15. This can be achieved on the one hand by the fact that the lower teeth 9 are longer than the upper teeth 8 or on the other hand in that all the teeth 8, 9 are the same length, but offset from each other by the measure (a).
  • the projections 17 protect the adjacent tips 10 of the teeth 8 of the upper blade 2 when the skin surface 29 is pressed against the tooth tips 11 during shaving in the direction B2.
  • the projections 17 are preferably pin-shaped or column-shaped and have at their free ends convexly (upward) arched end portions 18 in the form of caps, which are preferably aligned with the tops 21 of the tooth tips 10, slightly above or below.
  • the projections 17 form on the circumference a lateral surface 19, which without stage ( FIGS. 2 and 3 ), so straight into the side surfaces 20 of the sections 15 run, ie, there are no steps.
  • the cutting device 1 may also be preferably used as a trimmer, wherein it then preferably at the front of a razor housing (not shown) protrudes and is guided perpendicularly from the front against the tips 10, 11 to the skin surface to be shaved 24. The shaving movement then goes back and forth in direction C.
  • the lower blade 3 is driven to oscillate. But it can also be driven only the upper blade 2 instead of the lower blade 3. It is also conceivable that both blades 2, 3 are moved in an oscillating manner. As a further variant, it is also possible that one of the two blades 2 or 3 is driven, while the other blade is swinging in the housing (not shown) of a razor, so that oppositely oscillating movements can increase the cutting action.
  • the cutting device 1 shown can be used, for example, in the razor "Braun Synchro", which has long been marketed by the applicant, instead of the trimmer provided there, in which case the razor moves in the direction C with the tooth tips 11 on the skin surface 24 (FIG. Fig. 2 ) is guided along.
  • the cutting device 1 can also be used as a central cutter, as it is for example in that of the Applicant razor "Braun 360 ° Complete” or "Braun Pulsonic” is used, in which case the razor is moved in the direction B on the skin surface 29 (FIG. Fig. 2 ) is guided along.
  • the teeth 8, particularly sharp side edges 30, 31 at the junction of the side surfaces 20 to the top 21 and the contact surface 4 have, which also applies to the tips 10 of the upper blade 2 as a comb. This results in a better threading of the hair in the comb, thus improving the shaving result.

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

Abstract

L'invention concerne un dispositif de coupe (1) pour la coupe des poils, présentant au moins deux lames (2, 3) animées d'un mouvement alternatif l'une par rapport à l'autre. Les lames (2, 3) sont munies de dents (8, 9) s'étendant perpendiculairement à la direction du déplacement (P), des vides (25, 26) étant prévus entre elles. Les dents (8, 9) présentent, sur leurs sections orientées l'une vers l'autre, des surfaces de contact (4, 5), à contact coulissant entre elles, qui forment de leur côté, des arêtes de coupe (34, 35) sur les côtés (33, 20) délimitant les vides (25, 26), de telle sorte que lors du mouvement alternatif (P) des lames, les vides (25, 26) coopérant entre eux forment des fentes de coupe (32) changeant en permanence, dans lesquelles les poils sont pincés et sont finalement coupés. L'invention est caractérisée en ce que les extrémités libres des dents (9) de l'une des lames (3) s'étendent au-dessus des sections (15) des extrémités libres des dents (8) de l'autre lame (2), ce qui entraîne, sur le côté des surfaces de contact (5), la formation de saillies (17) par rapport aux sections supérieures (15) des dents (9). Les saillies (17) améliorent la résultat de la coupe, du fait qu'en cours de rasage, elles redressent les poils qui sont à plat sur la surface de la peau (29), les orientant ainsi plus facilement vers les dents (8, 9).

Claims (8)

  1. Dispositif de coupe (1) pour la coupe des cheveux, avec au moins deux lames (2, 3) effectuant un mouvement alternatif l'une par rapport à l'autre, qui sont pourvues de dents (8, 9) s'étendant transversalement à la direction de mouvement (P) et d'entredents (25, 26) intermédiaires, dans lequel les dents (8, 9) comportent, sur leurs sections tournées l'une vers l'autre, des surfaces de contact (4, 5) glissant l'une contre l'autre et formant quant à elles des arêtes de coupe (34, 35) par rapport aux surfaces latérales (33, 20) délimitant les entredents (25, 26), de sorte que lors du mouvement alternatif (P) des lames (2, 3), les entredents (25, 26) coopérant entre eux forment un jeu de coupe (32) constamment variable, dans lequel des cheveux sont coincés puis coupés, où les extrémités libres des dents (9) de l'une des lames (3) s'étendent au-delà des sections (15) d'extrémité libre des dents (8) de l'autre lame (2), et de sorte que des saillies (17) dépassent des sections saillantes (15) des dents (9) du côté des surfaces de contact (5), caractérisé en ce quela lame (3) pourvue de saillies (17) est soumise au mouvement alternatif oscillant.
  2. Dispositif de coupe selon la revendication 1, caractérisé en ce queles saillies (17) sont conçues en forme de colonnes ou de cônes.
  3. Dispositif de coupe selon la revendication 1, caractérisé en ce que la transition entre la surface extérieure (19) d'une saillie (17) et la surface latérale (20) de la dent (9) correspondante forme un plan commun.
  4. Dispositif de coupe selon la revendication 3, caractérisé en ce quela surface extérieure (19) d'une saillie (17) s'affine vers l'extrémité libre, en partant de la dent (9) correspondante.
  5. Dispositif de coupe selon la revendication 3, caractérisé en ce que,du côté frontal, les saillies (17) sont pourvues de sections terminales (10) voûtées vers l'extérieur.
  6. Dispositif de coupe selon la revendication 1, caractérisé en ce que, à la pointe (11) des dents (9), les surfaces latérales (20) forment la surface de glissement pour la surface de peau (24) d'un utilisateur.
  7. Dispositif de coupe selon la revendication 1, caractérisé en ce quele dispositif de coupe (1) est monté en amont ou en aval d'un système de coupe de cheveux courts.
  8. Dispositif de coupe selon la revendication 1, caractérisé en ce quele dispositif de coupe (1) est conçu comme un dispositif de coupe moyen entre deux systèmes de coupe de cheveux courts.
EP08749292A 2007-05-18 2008-05-02 Dispositif de coupe pour la coupe des poils Active EP2146827B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007023362A DE102007023362A1 (de) 2007-05-18 2007-05-18 Schneideinrichtung zum Schneiden von Haaren
PCT/EP2008/003545 WO2008141720A1 (fr) 2007-05-18 2008-05-02 Dispositif de coupe pour la coupe des poils

Publications (2)

Publication Number Publication Date
EP2146827A1 EP2146827A1 (fr) 2010-01-27
EP2146827B1 true EP2146827B1 (fr) 2012-05-30

Family

ID=39591246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08749292A Active EP2146827B1 (fr) 2007-05-18 2008-05-02 Dispositif de coupe pour la coupe des poils

Country Status (6)

Country Link
US (1) US9156173B2 (fr)
EP (1) EP2146827B1 (fr)
JP (1) JP5220845B2 (fr)
DE (1) DE102007023362A1 (fr)
RU (1) RU2420394C1 (fr)
WO (1) WO2008141720A1 (fr)

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DE202006007059U1 (de) 2005-12-12 2006-10-12 Koninklijke Philips Electronics N.V. Schneideeinheit mit Schutzzähnen und Haarschneidevorrichtung
DE102007023362A1 (de) * 2007-05-18 2008-11-20 Braun Gmbh Schneideinrichtung zum Schneiden von Haaren
EP2583798A1 (fr) * 2011-10-17 2013-04-24 Babyliss Faco S.A. Système de coupe pour tondeuse
WO2013064932A1 (fr) * 2011-11-04 2013-05-10 Koninklijke Philips Electronics N.V. Procédé de production d'un élément coupant
USD779123S1 (en) 2014-11-12 2017-02-14 Medline Industries, Inc. Clipper head
US9713877B2 (en) 2014-11-12 2017-07-25 Medline Industries, Inc. Clipper head with drag reduction
USD795497S1 (en) 2016-01-15 2017-08-22 Medline Industries, Inc. Clipper
USD794871S1 (en) 2016-01-15 2017-08-15 Medline Industries, Inc. Clipper
USD802215S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802217S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802214S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
USD802216S1 (en) 2016-06-10 2017-11-07 Medline Industries, Inc. Clipper head
JP6975928B2 (ja) * 2018-03-20 2021-12-01 パナソニックIpマネジメント株式会社 トリマー刃及び体毛切断装置
EP3854541A1 (fr) 2020-01-23 2021-07-28 Braun GmbH Tondeuse électrique pour barbe
EP3854540A1 (fr) 2020-01-23 2021-07-28 Braun GmbH Tondeuse à barbe électrique
EP3854538A1 (fr) 2020-01-23 2021-07-28 Braun GmbH Tondeuse à barbe électrique
EP3854542B1 (fr) 2020-01-23 2023-12-13 Braun GmbH Tondeuse à barbe électrique
EP4119312A1 (fr) * 2021-07-15 2023-01-18 Braun GmbH Système de coupe pour tondeuse à barbe électrique

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Also Published As

Publication number Publication date
JP5220845B2 (ja) 2013-06-26
US20110016727A1 (en) 2011-01-27
RU2420394C1 (ru) 2011-06-10
DE102007023362A1 (de) 2008-11-20
WO2008141720A1 (fr) 2008-11-27
US9156173B2 (en) 2015-10-13
EP2146827A1 (fr) 2010-01-27
JP2010527283A (ja) 2010-08-12

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