EP0189335B1 - Couteaux pour rasoir à grille et support portant ces couteaux, procédé d'affûtage et de montage de ces couteaux - Google Patents

Couteaux pour rasoir à grille et support portant ces couteaux, procédé d'affûtage et de montage de ces couteaux Download PDF

Info

Publication number
EP0189335B1
EP0189335B1 EP86400001A EP86400001A EP0189335B1 EP 0189335 B1 EP0189335 B1 EP 0189335B1 EP 86400001 A EP86400001 A EP 86400001A EP 86400001 A EP86400001 A EP 86400001A EP 0189335 B1 EP0189335 B1 EP 0189335B1
Authority
EP
European Patent Office
Prior art keywords
blades
support
knives
mandrel
grooves
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
EP86400001A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0189335A1 (fr
Inventor
Jean Hennuy
André Benoist
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.)
SEB SA
Original Assignee
SEB SA
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 SEB SA filed Critical SEB SA
Priority to AT86400001T priority Critical patent/ATE37816T1/de
Publication of EP0189335A1 publication Critical patent/EP0189335A1/fr
Application granted granted Critical
Publication of EP0189335B1 publication Critical patent/EP0189335B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B26B19/044—Manufacture and assembly of cutter blocks

Definitions

  • the present invention relates to a knife unit with knives for razor with grid and support one on which these knives are mounted, this support having slots perpendicular to the longitudinal direction of the support, in which the knives are positioned and keeping the knives spaced parallel to each other and aligned in the longitudinal direction of this support, the knives having an arcuate shape and a certain elasticity and comprising fixing means which cooperate with locking means which make it possible to mount these knives on the support.
  • the invention also relates to the method for sharpening the knives forming part of the knife unit and the method for mounting them on the support of the knife unit of the razor.
  • the knives mounted on the support are covered by a fixed grid comprising a multitude of small openings, under which the cutting edge of the knives moves. These knives are all moved at the same time in an alternating movement of translation of the support, which is controlled by an electric motor.
  • the knives are assembled on a support by crimping or overmolding when this support is made of plastic.
  • the knives mounted on the support are sharpened on a cylindrical grinder. This operation leaves a burr on the cutting edges of the knives.
  • knives for grating razors mounted on a support which keeps the knives spaced, parallel and spaced from each other and aligned in the longitudinal direction of this support. These knives have an arched shape and a certain elasticity.
  • the support has slots perpendicular to the direction of the support in which the knives are positioned. The knives are separated by shims and are crossed by assembly pins.
  • the object of the present invention is to create a knife unit with knives for grating razors and a support for holding them, thanks to which it is possible to position these knives with great ease and precision on the support and d '' avoid the costly operation of eliminating the burr which remains after the rectification of the cutting edge of the knives.
  • the knife unit comprising the knives for grating razor and the support on which these knives are mounted, is characterized in that the knives comprise near each end of the arc, a notch opening towards the inside of the arc, in that the support has two longitudinal grooves, parallel to the longitudinal direction of the support, the notches of the knives being arranged opposite these grooves, and in that said notches are. resiliently locked on two pins engaged in the space between the two grooves and the notches of the knives.
  • This system of fixing by pins, retained in longitudinal grooves formed in the support and locking the knives to the support by the notches formed in them, allows a very simple mounting of these knives on the support, while guaranteeing an extreme precision for the position of the knives on the support.
  • the notches in the knives can be replaced by bosses locked to V-section profiles engaged in the longitudinal grooves of the support.
  • the knives are placed on a mandrel having two longitudinal and parallel grooves, spaced from one another by a distance equal to the distance between the two grooves of the knife support, by positioning the notches or bosses of this knife opposite these grooves, force is engaged two pins or profiles of appropriate section in the space between each groove of the mandrel and the adjacent notches or bosses of the knives, the knives are clamped against each other, the mandrel is made to rotate about its axis and a stack of knives stacked and clamped on the mandrel is applied against the outer surface so as to sharpen all of the knives.
  • the knives are precisely positioned on the mandrel, by means of two pins spaced the same distance as those intended to position the knives on the knife support, it is ensured that the knives are positioned on this support with the same high precision as on the sharpening mandrel.
  • the sharpened knives are removed from the chuck by releasing the pins or said profiles, these knives are placed on the support, keeping the order in which these knives were placed on the sharpening mandrel, force the two pins or two profiles in the space between each longitudinal groove of the support and the adjacent notches of the knives.
  • These knives 1 are made of hardened steel and have the general shape of an arc of a circle (see FIG. 3). These knives 1 are constituted by a curved blade having a substantially constant deformation along its curvature. These knives 1 have near each end of the arc a notch 5, 6 opening towards the inside of the arc.
  • These knives 1 are placed on a cylindrical mandrel 2, having two longitudinal and parallel grooves 3, 4 extending along two diametric generatrices of the mandrel 2.
  • the knives 1 are positioned on the mandrel 2 so that the notches 5, 6 of the knives are substantially opposite the logitudinal grooves 3, 4 of the mandrel 2.
  • One end (see Figures 1 and 2) of the mandrel 2 carries a fixed support ring 8.
  • the other end of this mandrel 2 carries a movable ring 9 against which a nut 10 is screwed.
  • the knives 1 stacked on the mandrel 2 are tightened against each other between the rings 8 and 9 by means of the nut 10.
  • the opposite ends of the mandrel 2 have centering holes 11, 12 conical, making it possible to place this mandrel between two conical points 13,14 shown in dotted lines (see FIG. 2), arranged along an axis X - X 'constituting the axis d drive in rotation of a grinder-sharpener.
  • the tip 14 is adjacent to a rotary plate 15 also shown in dotted lines in FIG. 2, carrying a finger 16 in abutment against a lever 17 fixed to the nut 10 of the mandrel 2.
  • the rotary plate 15 thus rotates the mandrel 2 via finger 16 and lever 17.
  • the mandrel 2 is driven by an alternative movement of translation along the axis X - X 'which is controlled by means of a device not shown.
  • a grinding wheel 18 mounted in rotation about an axis Y - Y 'is supported. This grinding wheel 18 rotates in the same direction as that of the mandrel 2. This grinding wheel 18 thus sharpens all of the knives 1. Since these are clamped against each other, no burr is formed on the edge cutting the arc of these knives 1.
  • the support 20 made of plastic has on each side two longitudinal grooves 21, 22 parallel to the longitudinal direction of the support.
  • This support 20 comprises a protruding middle rib 23 and extending in the longitudinal direction of the support.
  • the upper end of this rib 23 comprises (see FIG. 4) slots 24 perpendicular to the support, regularly spaced, intended to each receive a knife 1.
  • This support 20 also includes two parallel wings 25, 26 (see FIG. 5) located in a plane perpendicular to the middle rib 23.
  • each wing 25 or 26 comprises regularly spaced slots 27 which, like the slots 24 are each intended to receive a knife 1.
  • slots 27 There exists for each knife 1 a slot 24 and two slots 27 arranged in a plane perpendicular to the longitudinal axis of the support 20, intended to receive a knife, the two slots 27 being arranged at 90 ° on either side of the slot 24.
  • FIG. 4 shows on the other hand that the support 20 comprises on its lower face cells 28, 29 of which at least one is intended to receive a finger (not shown) driven by a motor to move the support 20 according to a movement translation alternative directed in the direction of its longitudinal axis.
  • the knives 1 are placed on the support 20 by engaging each of them in a slot 24 and two slots 27 and keeping the order in which these knives were placed on the sharpening mandrel 2. Then two pins are forcibly engaged 30 (see FIGS. 4, 6, 7 and 8) in the spaces between each longitudinal groove 21 and 22 of the support 20 and the adjacent notches 5, 6 of the knives 1. Thus, the notches 5 and 6 of the knives 1 are locked to the two pins 30 which are themselves retained in the grooves 21 and 22 of the support 20.
  • the knives 1 are placed on the support 20 with very high precision.
  • the cutting edges 1a which have been sharpened are situated on a cylindrical surface C (shown in phantom in FIG. 6) which corresponds exactly to the cylindrical surface in which these edges were arranged when the knives 1 were on the mandrel 2 after sharpening.
  • the knives 1 mounted on the support 20 can be placed directly in the razor, without it being necessary to correct the cutting edges 1a of these knives, given that these have no burr.
  • the cutting edge of the knives can have a shape other than that of an arc of a circle.
  • the cutting edge 1b of the knife has the shape of a triangular eccentric arc.
  • This arc has the property of having a center as in the case of a circular arc, all the diameters passing through this center being equal.
  • this sharp edge 1b has a relatively small radius of curvature at the top of the arc which is perfectly suitable for shaving parts of the face which are difficult to access or for precise stops around the legs of the beard and the mustache, while the relatively large radius of curvature on the sides of the arch is well suited for shaving the cheeks.
  • Knives having this shape can be sharpened by grinding these knives stacked on top of each other, as in the case of the method described above, but by using a machine for grinding polygonal shafts which is very widespread in the automotive industry.
  • the invention is not limited to the means for fixing and locking the knives to the support which has just been described.
  • the knife 1c has at its ends bosses 5a, 5b directed towards the inside of the arc.
  • the sections 30a, 30b of complementary V section In the space between these bosses 5a, 5b and the longitudinal grooves 21 and 22 of the support are forcibly engaged, that is to say by causing an elastic deformation of the knives, the sections 30a, 30b of complementary V section to that of gorges 21 and 22.
  • Profiles identical to profiles 30a, 30b are used to precisely position the knives 1c on a mandrel similar to that shown in Figures 1 to 3, replacing the pins 7, or the distance between the V grooves 3 and 4 of the mandrel could be identical to that separating the V-shapes of the sections 30a and 30b when the latter are assembled on the support.
  • a single pin or profile could be provided on one side of the support, the other side of the knives being directly retained on the support without the interposition of a pin or similar means ensuring locking by elastic deformation of the knives.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Dry Shavers And Clippers (AREA)
  • Thermistors And Varistors (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Treatment Of Fiber Materials (AREA)
EP86400001A 1985-01-09 1986-01-02 Couteaux pour rasoir à grille et support portant ces couteaux, procédé d'affûtage et de montage de ces couteaux Expired EP0189335B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400001T ATE37816T1 (de) 1985-01-09 1986-01-02 Messerblock fuer trockenrasierer und verfahren zum schleifen und zum zusammenbauen eines solchen blockes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8500247A FR2575691B1 (fr) 1985-01-09 1985-01-09 Couteaux pour rasoir a grille et support portant ces co uteaux, procede d'affutage et de montage de ces couteaux
FR8500247 1985-01-09

Publications (2)

Publication Number Publication Date
EP0189335A1 EP0189335A1 (fr) 1986-07-30
EP0189335B1 true EP0189335B1 (fr) 1988-10-12

Family

ID=9315117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400001A Expired EP0189335B1 (fr) 1985-01-09 1986-01-02 Couteaux pour rasoir à grille et support portant ces couteaux, procédé d'affûtage et de montage de ces couteaux

Country Status (6)

Country Link
US (1) US4815209A (ja)
EP (1) EP0189335B1 (ja)
JP (1) JPS61164582A (ja)
AT (1) ATE37816T1 (ja)
DE (1) DE3660886D1 (ja)
FR (1) FR2575691B1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014110932A1 (zh) * 2013-01-21 2014-07-24 厦门莱瑞电器有限公司 往复式电动剃须刀的外刀改良结构和陶瓷内刀及外刀加工方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005198795A (ja) * 2004-01-15 2005-07-28 Izumi Products Co 往復式電気かみそりの内刃製造方法および内刃
DE102005010244A1 (de) * 2005-03-05 2006-09-07 Braun Gmbh Schersystem für ein elektrisches Haarschneidegerät
JP4127290B2 (ja) * 2006-04-25 2008-07-30 松下電工株式会社 電気かみそり用の内刃及び往復式電気かみそり
JP4595968B2 (ja) * 2007-07-12 2010-12-08 パナソニック電工株式会社 往復式電気かみそりの内刃
US11229984B1 (en) 2020-07-24 2022-01-25 Kenneth A. Wildman Knife sharpening apparatus and method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052244A (ja) *
DE961866C (de) * 1954-09-29 1957-04-11 Berger Friedrich Messerkopf fuer Trockenrasierapparate
DE1026197B (de) * 1957-01-19 1958-03-13 Richard Antretter Messerkopf fuer Trockenrasierapparate
CH404456A (de) * 1963-07-26 1965-12-15 Apag Apparatebau Ag Schermesseraggregat für Trockenrasierapparate
DE1728376A1 (de) * 1965-07-29 1971-12-30 Payer Lux Messerblock fuer Trockenrasierapparate
CH431318A (de) * 1965-11-04 1967-02-28 Angst Paul Bewegliches Schermesser für Rasierapparate
US3376636A (en) * 1966-11-28 1968-04-09 Sunbeam Corp Shaving head for electric dry shaver
DE1703893A1 (de) * 1968-07-25 1971-10-07 Antretter Richard Messerkopf fuer Trockenrasierapparate
DE2019744A1 (de) * 1970-04-23 1971-11-04 Braun Ag, 6000 Frankfurt Messerblock fuer Trockenrasierapparate mit einem Tragkoerper aus Kunststoff
US3945118A (en) * 1973-11-08 1976-03-23 Sperry Rand Corporation Shaver inner cutter
JPS5321263U (ja) * 1976-07-30 1978-02-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014110932A1 (zh) * 2013-01-21 2014-07-24 厦门莱瑞电器有限公司 往复式电动剃须刀的外刀改良结构和陶瓷内刀及外刀加工方法

Also Published As

Publication number Publication date
FR2575691B1 (fr) 1988-07-08
US4815209A (en) 1989-03-28
FR2575691A1 (fr) 1986-07-11
EP0189335A1 (fr) 1986-07-30
JPS61164582A (ja) 1986-07-25
ATE37816T1 (de) 1988-10-15
JPH0513679B2 (ja) 1993-02-23
DE3660886D1 (en) 1988-11-17

Similar Documents

Publication Publication Date Title
EP0083289B1 (fr) Roue de rotor de turbomachine munie d'un dispositif de retenue axiale et radiale d'aubes sur le disque
EP2957963B1 (fr) Mobile d'horlogerie
FR2965206A3 (fr) Machine-outil electrique portative comportant un dispositif de serrage rapide pour un element de travail
FR2502524A1 (fr) Outil de tronconnage a pastilles rapportees
EP0189335B1 (fr) Couteaux pour rasoir à grille et support portant ces couteaux, procédé d'affûtage et de montage de ces couteaux
EP2300113A2 (fr) Dispositif portatif pour l'affutage des carres d'un ski
EP0001855A1 (fr) Dispositif pour serrer une roue de motocyclette dont il y a lieu d'enlever un pneu ou sur laquelle un pneu doit être monté
EP1011906A1 (fr) Appareil a main pour la coupe transversale d'un tuyau en acces difficile
EP1858664B1 (fr) Outil et machine pour operations d'usinage presentant un risque de travail à rebours
EP0334227A1 (fr) Dispositif pour le montage et le démontage rapide d'outils ou de lames sur un appareil circulaire
EP0226497B1 (fr) Tête de trolleybus
FR2745517A1 (fr) Dispositif servant a retirer un pare-brise
EP2769798B1 (fr) Fraise de rodage pour électrodes de soudage
EP0077226B1 (fr) Outil à main pour l'enlèvement de matière sur une pièce, notamment pour l'ébavurage ou le cassage d'angles
EP3047722B1 (fr) Outil de coupe a enclume ameliore
FR3066973B1 (fr) Cle de blocage d'une timonerie, sous-ensemble de timonerie et timonerie presentant une telle cle de blocage et procede de mise en place d'une telle cle de blocage sur une timonerie
FR2846897A1 (fr) Outil de rodage, destine notamment au rodage d'embouts d'electrode de soudage
EP0119890A1 (fr) Appareil pour la coupe en biseau d'une pièce
EP2214875A2 (fr) Tete de decoupe et installation la comportant et outil de reglage
FR2542230A1 (fr) Outil tubulaire pour l'usinage, et tete d'usinage ainsi equipee
FR2965503A1 (fr) Dispositif de coupe pour machine de coupe et porte-lame correspondant
FR1464375A (fr) Dispositif pour le découpage de bandes de papier dans le sens de la longueur
FR2598642A1 (fr) Piece de maintien des extremites de la lame pour scie oscillante entrainee par excentrique
FR2742112A1 (fr) Essuie-glace de vehicule automobile muni d'un dispositif de reglage precis de sa position angulaire lors de son montage sur un vehicule
FR2541172A1 (fr) Appareil pour la coupe en biseau d'une piece

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19860107

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI NL

17Q First examination report despatched

Effective date: 19870723

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 37816

Country of ref document: AT

Date of ref document: 19881015

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3660886

Country of ref document: DE

Date of ref document: 19881117

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890120

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890123

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890313

Year of fee payment: 4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19891220

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19900102

Ref country code: GB

Effective date: 19900102

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900131

Ref country code: BE

Effective date: 19900131

Ref country code: CH

Effective date: 19900131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19900131

Year of fee payment: 5

BERE Be: lapsed

Owner name: S.A. SEB

Effective date: 19900131

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19910801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19911001

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19911122

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050102