EP0008483B1 - Tondeuse, en particulier pour rasoir électrique - Google Patents

Tondeuse, en particulier pour rasoir électrique Download PDF

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Publication number
EP0008483B1
EP0008483B1 EP79200464A EP79200464A EP0008483B1 EP 0008483 B1 EP0008483 B1 EP 0008483B1 EP 79200464 A EP79200464 A EP 79200464A EP 79200464 A EP79200464 A EP 79200464A EP 0008483 B1 EP0008483 B1 EP 0008483B1
Authority
EP
European Patent Office
Prior art keywords
shaver
blade
comb
hair cutter
shaving
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
Application number
EP79200464A
Other languages
German (de)
English (en)
Other versions
EP0008483A1 (fr
Inventor
Gebhard Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Priority to AT79200464T priority Critical patent/ATE635T1/de
Publication of EP0008483A1 publication Critical patent/EP0008483A1/fr
Application granted granted Critical
Publication of EP0008483B1 publication Critical patent/EP0008483B1/fr
Expired 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
    • B26B19/06—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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly

Definitions

  • the invention relates to a long-hair shear part, in particular for dry shavers, with a shaving comb arranged on the shaving head and a toothed shaving blade which can be moved back and forth, which is supported by a pressure spring supported on the shaving head frame via a single-arm pressure lever which is supported on the shaving blade and the shaving head frame. is held in contact with the shear comb.
  • a general problem of long-hair shear parts is that their two cutting elements, the shaving comb and the shaving blade, have to lie perfectly against one another over their entire length under the most uniform possible contact pressure, without the long-hair shear part becoming too stiff, so that the friction forces that occur with the lowest possible driving forces can be overcome.
  • the pressure spring is no longer allowed to act directly on the movable shear blade but via the pressure lever mentioned at the beginning, with the help of which the force of the pressure springs can now be redirected so that it is in an optimal position and in relation to the function of the long-hair shear part Direction in the shear blade is initiated.
  • the pressure lever serves to drive the movable shear blade and is therefore designed as a two-armed lever which is rotatably mounted in its center, in which one lever arm rests on the shear blade and the others on an abutment fixed to the housing.
  • a leaf spring that presses on both ends of the lever arm and is supported in the center of the housing holds the lever in its position.
  • the pressure lever is pivotally and axially displaceably arranged on two axially closed bearings by means of two circumferentially closed bearings and is urged into the pressure position by two hairpin springs wound onto the axis on both sides of the lever.
  • the pressure lever has two functions, namely pressing and moving the shear blade, and due to the construction there is the disadvantage that a considerable proportion of the energy to be applied by the motor for operating the long-hair shear part as friction in the circumferentially closed bearings during the axial drive movement of the pressure lever and moreover is lost when the free arms of the two hairpin feathers are overcome.
  • the invention has for its object to provide a long-hair shear part of the type mentioned, which is simple in construction, the intrinsic friction of which can be kept low from the outset and which offers extensive freedom in design and adaptation to given geometric conditions.
  • the invention solves this problem in that the pressing lever with a cutting-like section is inserted into a prismatic recess in the shaving head frame of the dry shaving apparatus and can only be pivoted in the pressing direction.
  • This configuration enables the pressure lever to transmit the pressure force of the pressure spring to the shear blade with very low friction losses.
  • the lever is also held in place, so that no special fastening means but also no special circumferentially closed bearings with increased friction are required for the pressing.
  • the pressing lever is fork-shaped and thus has two arms, each of which abuts both against the shaving head frame and against the shaving blade.
  • Each pressure lever is advantageously assigned two pressure springs, each of which is supported against an arm of the pressure lever, and the web connecting the two arms is designed to be torsionally soft.
  • the pressure forces are generated by this design of the invention of two relatively small springs, which are easy to accommodate in the shaving head frame, and both arms can lie independently on the associated shaving blade.
  • Another advantageous embodiment of the invention consists in that the shear blade abuts against the shear comb on the side opposite its toothing with a narrow rag.
  • This design provides the three-point support of the shaving blade with secure position. The risk of warping the shear blade by grinding is low because the front one Surface of the shear blade is interrupted by the toothing and only the narrow rag is to be ground as the rear surface. With this design, the contact of the shaving blade to the shaving comb is still good even if the blade should twist slightly during grinding.
  • the problem of warping the shaving comb during grinding can be solved in that the shaving comb also has a narrow tab against which the tab of the cutting blade rests.
  • the shear comb is toothed or pronged on its side facing away from its prongs. This measure also serves to prevent the shaving comb from warping due to the grinding.
  • FIG. 1 schematically shows a shaving head 1 which is held in contact with a shaving foil by means of a spring 2.
  • the shaving head 1 can be set in a reciprocating movement perpendicular to the plane of the drawing by means of a rocking lever 4.
  • the shaving foil 3 is held in a usual manner, not shown, within a shaving head frame 5.
  • a long-hair shear part and 7 is arranged on both sides of the shaving head frame 5 . Both long-hair shear parts 6 and 7 are designed functionally the same, so that only the long-hair shear part 7 is described in detail below.
  • the Langhaarscherteil7 7 has a shaving comb 8, with prongs 9, which is firmly connected to the shaving head frame 5. Below the shear comb 8 there is a shear blade 10 with teeth 11, which is designed in accordance with the prongs 9.
  • a pressure lever 2 lies on the one hand near the toothing 11 with a contact section 13 against the shear blade 10, and on the other hand with a cutting-like section 14 in a prismatic recess 15 of the shaving head frame 5.
  • the pressure lever 12 is pivoted about its cutting-like section 14, so that its contact section 13 presses against the shear blade 10 near the toothing 11.
  • the pressing lever 12 breaks down the forces of the pressing spring 16 in such a way that the pressing force is guided into the cutting blade 10 at approximately a right angle, which can be seen particularly clearly in the long-hair shear part 6 6 shown on the left in FIG. 1, cf. Lines of action A and B.
  • the shear blade 10 has a tab 20 on its side opposite the toothing 11. This is pulled up to the shear comb 8 and bears against a corresponding tab 21 of the shear comb 8.
  • the shaving comb 8 and the shaving blade 10 touch only in the area of the prongs 9 or teeth 11 and with the tabs 20 and 21.
  • the shaving comb and the shaving blade of the long-hair shear part 6 are preferably also each provided with one of the tabs 20 and 21 corresponding tabs, as can be clearly seen from the drawing.
  • FIGS. 4 and 4 show the design of the pressure lever 12 of the long-hair shear part 7.
  • the pressure lever 12 is fork-shaped and has two arms 23, 24 which are connected to one another by a connecting web 25.
  • Each arm 23, 24 has the cutting-like section 14, with which it engages in the recess 15 of the shaving head frame 5, and the pressing section 13, with which it bears against the shaving blade 10. Between these sections 14, 13, the recess 18 is provided in each arm 23, 24, which receives the pressure spring 16 in each case.
  • the connecting web 25 is expediently designed to be torsionally soft and thus allows the arms 23 and 24 to rest independently on the shear blade.

Claims (6)

1. Dispositif de coupe des poils longs (6 ou 7), notamment pour rasoirs à sec, comprenant un peigne de coupe agencé rigidement sur le châssis (5) de la tête de coupe et une lame de coupe dentée (10) mobile en va-et-vient qui est maintenue en appui contre le peigne de coupe (8) par un ressort presseur (16) appuyé contre le châssis (5) de la tête de coupe, par l'intermédiaire d'un levier presseur (12) qui est lui-même appuyé contre la lame de coupe (10) et monté pivotant sur le châssis (5) de la tête de coupe, caractérisé en ce que le levier presseur (12) est engagé par un segment (14) en forme de couteau dans un évidement prismatique (15) du châssis (5) de la tête de coupe du rasoir à sec.
2. Dispositif de coupe des poils longs suivant la revendication 1, caractérisé en ce que le levier presseur (12) est réalisé sous la forme d'une fourche et comporte donc deux bras (23, 24) qui sont appuyés chacun aussi bien contre le châssis (5) de la tête de coupe que contre la lame de coupe (10).
3. Dispositif de coupe des poils longs suivant les revendications 1 et 2, caractérisé en ce qu'à chaque levier presseur (12) sont associés deux ressorts presseurs (16) qui s'appuient chacun contre un bras (23, 24) et en ce que la traverse (25) qui relie les deux bras (23 et 24) est réalisée sous une forme souple en torsion.
4. Dispositif de coupe des poils longs suivant la revendication 1, caractérisé en ce que, sur le côté opposé à sa denture (11), la lame de coupe (10) est appliquée contre le peigne de coupe (8) par une patte étroite (20).
5. Dispositif de coupe des poils longs suivant la revendication 4, caractérisé en ce que le peigne de coupe (8) comporte également une patte étroite (21) contre laquelle s'applique la patte (20) de la lame de coupe (10).
6. Dispositif de coupe des poils longs suivant la revendication 1, caractérisé en ce que le peigne de coupe (8) est denté ou entaillé sur son côté à ses dents (9).
EP79200464A 1978-08-24 1979-08-20 Tondeuse, en particulier pour rasoir électrique Expired EP0008483B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79200464T ATE635T1 (de) 1978-08-24 1979-08-20 Langhaarscherteil, insbesondere fuer trockenrasierapparate.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2836959 1978-08-24
DE2836959A DE2836959C2 (de) 1978-08-24 1978-08-24 Langhaarscherteil, für Trockenrasierapparate

Publications (2)

Publication Number Publication Date
EP0008483A1 EP0008483A1 (fr) 1980-03-05
EP0008483B1 true EP0008483B1 (fr) 1982-02-03

Family

ID=6047799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79200464A Expired EP0008483B1 (fr) 1978-08-24 1979-08-20 Tondeuse, en particulier pour rasoir électrique

Country Status (9)

Country Link
US (1) US4262415A (fr)
EP (1) EP0008483B1 (fr)
JP (1) JPS5827952B2 (fr)
AR (1) AR217187A1 (fr)
AT (1) ATE635T1 (fr)
AU (1) AU527324B2 (fr)
BR (1) BR7905361A (fr)
DE (1) DE2836959C2 (fr)
ES (1) ES251751Y (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8003670A (nl) * 1980-06-25 1982-01-18 Philips Nv Scheerapparaat.
DE3303989C2 (de) * 1983-02-05 1984-12-06 Braun Ag, 6000 Frankfurt Langhaarschneideinrichtung für Trockenrasierapparat
DE3428487C2 (de) * 1984-08-02 1986-08-21 Braun Ag, 6000 Frankfurt Langhaarschneideinrichtung für Trockenrasierapparate
US4700476A (en) * 1984-11-02 1987-10-20 Remington Products, Inc. Shaver for a medical treatment preparation procedure
JPS6373678A (ja) * 1986-09-17 1988-04-04 Mitsubishi Electric Corp 半導体装置
JPS63160691A (ja) * 1986-12-23 1988-07-04 松下電工株式会社 電気かみそり
DE3819055A1 (de) * 1988-06-04 1989-12-07 Braun Ag Langhaarschneideinrichtung fuer trockenrasierapparate
DE3925006C1 (fr) * 1989-07-28 1990-10-31 Braun Ag, 6000 Frankfurt, De
DE19626736C1 (de) * 1996-07-03 1998-02-05 Moser Elektrogeraete Gmbh Langhaarschneideinrichtung für elektrische Rasierapparate
DE102007005853A1 (de) * 2007-02-01 2008-08-07 Braun Gmbh Haarentfernungsgerät
US20080295340A1 (en) * 2007-05-29 2008-12-04 Vito James Carlucci Free pivoting cutting head and blade assembly for hair cutter
US7900359B2 (en) * 2007-08-31 2011-03-08 The Gillette Company Hair trimmer
US20110010941A1 (en) * 2009-07-20 2011-01-20 Specialife Industries Limited Nose hair trimmer with dual cutting edges
US8726517B2 (en) * 2010-01-11 2014-05-20 Specialife Industries Limited Trimmer mechanism, hair trimmer, and hair trimmer attachment

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1723323A (en) * 1927-11-11 1929-08-06 Chicago Flexible Shaft Co Sheep shear
DE656821C (de) * 1937-03-19 1938-02-15 Feinmechanik Vormals Jetter & Einrichtung zum selbsttaetigen Halten auswechselbarer Aufschiebekoepfe am Gestell von Haarschneidemaschinen
CH329128A (de) * 1955-03-18 1958-04-15 Angst Paul Haarschermaschine für Rasierschnitt
DE1113393B (de) * 1960-02-20 1961-08-31 Max Braun Fa Langhaarschneidteil fuer Trockenrasier-apparate
CA668238A (en) * 1963-10-14 1963-08-06 B. Bond Beverly Power shavers
NL130719C (fr) * 1966-06-07
DE2019978C3 (de) * 1970-04-24 1974-11-21 Braun Ag, 6000 Frankfurt Langhaarschneideinrichtung für Trockenrasierapparate
NL7015258A (fr) * 1970-10-17 1972-04-19
US3869790A (en) * 1973-07-30 1975-03-11 Sperry Rand Corp Hair trimmer
NL7404738A (nl) * 1974-04-08 1975-10-10 Philips Nv Elektrische tondeuse.
US3991464A (en) * 1975-06-04 1976-11-16 Sperry Rand Corporation Latch and release for a trimmer device in an electric dry shaver
JPS542794Y2 (fr) * 1975-07-12 1979-02-06
US4074427A (en) * 1976-01-12 1978-02-21 Sperry Rand Corporation Auxiliary trimmer assembly
ZA78707B (en) * 1977-07-08 1979-01-31 Wahl Clipper Corp Hair trimming head

Also Published As

Publication number Publication date
AU5012179A (en) 1980-02-28
DE2836959C2 (de) 1983-04-28
AR217187A1 (es) 1980-02-29
JPS5573283A (en) 1980-06-02
DE2836959A1 (de) 1980-03-06
ATE635T1 (de) 1982-02-15
EP0008483A1 (fr) 1980-03-05
BR7905361A (pt) 1980-05-20
US4262415A (en) 1981-04-21
JPS5827952B2 (ja) 1983-06-13
AU527324B2 (en) 1983-02-24
ES251751U (es) 1981-04-01
ES251751Y (es) 1981-10-16

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