EP0200278B1 - Tête de coupe pour rasoir à sec - Google Patents

Tête de coupe pour rasoir à sec Download PDF

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Publication number
EP0200278B1
EP0200278B1 EP86200733A EP86200733A EP0200278B1 EP 0200278 B1 EP0200278 B1 EP 0200278B1 EP 86200733 A EP86200733 A EP 86200733A EP 86200733 A EP86200733 A EP 86200733A EP 0200278 B1 EP0200278 B1 EP 0200278B1
Authority
EP
European Patent Office
Prior art keywords
shaving
longitudinal
foil
head frame
shaving head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86200733A
Other languages
German (de)
English (en)
Other versions
EP0200278A3 (en
EP0200278A2 (fr
Inventor
Werner Kness
Karl Knees
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of EP0200278A2 publication Critical patent/EP0200278A2/fr
Publication of EP0200278A3 publication Critical patent/EP0200278A3/de
Application granted granted Critical
Publication of EP0200278B1 publication Critical patent/EP0200278B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof

Definitions

  • the invention relates to a shaving head for a dry shaving apparatus with a shaving head frame which has two longitudinal webs and two side walls and which removably carries a curved sieve shaving foil which is provided with at least two spaced-apart openings in the region of its two longitudinal edges, which optionally carry reinforcing strips, with which it is suspended in hooks projecting inwards from the two longitudinal webs, the hook ends pointing away from the curvature of the screen shear film.
  • Such shaving heads are used in commercially available dry shavers which have a reciprocating bottom knife which interacts with the shaving foil of the shaving head.
  • the invention has set itself the goal of eliminating the aforementioned difficulties and still ensuring a secure hold of the screen shaving film on the shaving head frame with the simplest possible design of the shaving head frame of the shaving head and a simple assembly of the screen shaving foil on the shaving head frame.
  • this is achieved in that the sieve shear foil is provided on its outer side facing the longitudinal webs of the shaving head frame in the region of its two longitudinal edges within the openings, each with at least one projecting projection which is at a distance from the free end of the adjacent longitudinal web , which is smaller than the hooking depth of the hooks projecting from the longitudinal webs, and wherein the shoulders extend in the direction perpendicular to the shaving foil at least up to the area of the wall thickness of the longitudinal webs in the area of their free ends.
  • the protruding approaches on the screen shear film limit their possible adjustment path, so that it cannot easily slide off the hook. If you want to deliberately remove the screen shaving foil from the shaving head frame, you press the protruding projections from the outside by hand, causing the screen shearing foil to bulge inwards and thereby detach from the hooks.
  • the installation of the sieve shaving foil on the shaving head frame is also very simple, since apart from the hooks which correspond to the openings in the sieve shaving foil there are no further projections on the longitudinal webs of the shaving head frame, so that they can be used without hindrance their openings can be hooked into the hook.
  • the shaving head frame itself is of simple construction, since in addition to the hooks no further projections have to be provided on it.
  • the projections provided in the area of the two longitudinal edges of the screen shear foil are designed as strips running parallel to the free ends of the adjacent longitudinal webs of the shaving head frame. Such strips certainly limit the possible adjustment path of the screen shear film on the shaving head frame and offer a good contact surface for deliberately detaching the screen shear film from the shaving head frame, and they also result in a reinforcement of the screen shear film in the region of its longitudinal edges.
  • the height extension of the projecting projections provided in the region of the two longitudinal edges of the screen shear film is substantially equal to the wall thickness of the longitudinal webs in the region of their free ends.
  • the possible adjustment path of the screen shear film on the shaving head frame is limited in a particularly secure manner, since a relatively strong curvature of the screen shear film is necessary in order to release it from the hooks, which then certainly cannot happen unintentionally.
  • FIG. 1 shows a shaving head in cross section.
  • Fig. 2 shows the shaving head frame according to Fig. 1 in plan view of one of the longitudinal webs of the shaving head frame, wherein according to a first embodiment the protruding lugs on the screen shear film are formed as strips.
  • FIG. 3 shows a second exemplary embodiment in the representation of FIG. 2, according to which the projecting projections on the screen shear foil are designed as cylinders.
  • the shaving head shown in FIGS. 1 and 2 has a shaving head frame 1 which releasably carries a curved screen shaving foil 2.
  • the shaving head frame 1 consists of two longitudinal webs 3 and 4 and two side walls 5 and 6.
  • the screen shear foil 2 is provided in the region of its two longitudinal edges with a reinforcement strip 9 or 10, in each of which two openings are provided at a distance from one another, of which an opening 11 or 12 is again visible in FIG. 1 .
  • openings 11 and 12 and the hooks 7 and 8 on the longitudinal webs 3 and 4 are corresponding to each other, so that the Siebscher film can be hung with these openings in the hooks, it then runs arched and below the through the curvature caused tension with the outside facing the longitudinal webs of the shaving head frame on the inner walls of the respective longitudinal webs 3 and 4 laterally.
  • Such reinforcement strips 9 and 10 are of course not absolutely necessary, but the openings can also be provided directly on the screen shear foil.
  • the screen shaving foil 2 is now on its outer side facing the longitudinal webs 3 and 4 of the shaving head frame 1 in the area of its two longitudinal edges, which should be understood to mean those areas which laterally adjoin the perforated field of the screen shaving foil used for shaving, each with a projecting attachment 13 or 14 provided.
  • These lugs 13 and 14 have a distance a from the free end 15 and 16 of the adjacent longitudinal web 3 and 4 of the shaving head frame 1 which is smaller than the hooking depth t of the hooks 7 and 8 projecting from the longitudinal webs 3 and 4.
  • the lugs 13 and 14 are arranged on the outside of the screen shaving foil facing the longitudinal webs 3 and 4 of the shaving head frame, with which they are supported on the inner wall of the longitudinal web in question, they extend in the direction perpendicular to the shaving foil 2 at least into the Area of wall thickness (w) of the longitudinal webs 3, 4 in the area of their free ends.
  • the screen shaving foil 2 is held securely on the shaving head frame. If, for example, pressure is exerted on the curvature of the sieve shear film from the outside, the sieve shear film together with its reinforcement strips 9 and 10 will endeavor to move along the inner walls of the adjacent longitudinal webs 3 and 4 in the direction of the hooks 7 and 8 .
  • the projecting projections 13 and 14 extend in the direction perpendicular to the screening shear roller 2 due to their extent extending into the dimensional range w of the wall thickness of the longitudinal webs 3 and 4 in the region of their free ends 15 and 16 strike the free ends 15 or 16 of the respective longitudinal webs 3 or 4.
  • the distance a between the projecting lugs 13 and 14 relative to the free ends 15 and 16 of the adjacent longitudinal webs 3 and 4, via which adjustment of the screen shear film is possible, is chosen to be smaller than the hooking depth t of the hooks 7 projecting from the longitudinal webs or 8, it is achieved that the openings 11 and 12 can not get free from the hooks 7 and 8, because they are still within the hook areas.
  • the screen shaving foil 2 cannot slide off the shaving head frame 1.
  • the reinforcement strips 9 and 10 are pivoted about their support within the hooks 7 and 8, with the sieve shear foil 2 being warped inwards.
  • the projecting lugs 13 and 14 increasingly leave the dimensional range w of the wall thickness of the longitudinal webs 3 and 4 in the area of their free ends 15 and 16 with regard to their extension in the direction perpendicular to the sieve shear film, until finally the lugs 13 and 14 of these free ends 15 and 16 are exempt.
  • the openings 11 and 12 can be released from the hooks 7 and 8, as a result of which the screen shaving foil 2 then detaches from the shaving head frame 1 because its adjustment path is no longer limited.
  • a slight pressure on the lugs 13 and 14 is sufficient to achieve the detachment of the sieve shear foil from the shaving head frame, since this process is supported by the efforts of the arched sieve shear foil to relax.
  • the screen shaving foil is securely held on the one hand on the shaving head frame and on the other hand can be easily removed from it.
  • the installation of the screen shaving foil on the shaving head frame is not difficult and can be done both from the top and the bottom of the frame. If you choose the assembly from the top of the frame, the screen shear film is inserted with one longitudinal edge first into the shaving head frame and hung with the openings in the hooks of the relevant longitudinal web, after which the screen shear film is then warped and inserted with the other longitudinal edge first into the shaving head frame and also with the openings in the hooks of the other longitudinal web.
  • the screen shaving foil When assembling from the underside of the shaving head frame, the screen shaving foil is first arched and inserted with the curvature first into the shaving head frame and then hung with the openings in the hooks. Since the inner walls of the longitudinal webs 3 and 4 are flat except for the hooks 7 and 8, which correspond to the openings 11 and 12 on the screen shear film and are therefore not a hindrance when mounting the screen shear film on the shaving head frame, the screen shear film can be used without Disability can be easily hooked into the hooks 7 and 8 with their openings 11 and 12, respectively.
  • the extension in the direction perpendicular to the sieve shear foil of the projecting projections 13 and 14 is selected such that it is essentially equal to the wall thickness w of the longitudinal webs 3 and 4 in the region of their free ends 15 and 16 is.
  • the projecting projections 13 and 14 reliably come from the outside at the free ends 15 and 16 of the longitudinal webs 3 and 14 when the screen shear film is curved.
  • FIG. 2 shows an embodiment in which these projections 13 and 14 are designed as strips which run parallel to the free ends 15 and 16 of the adjacent longitudinal webs 3 and 4 of the shaving head frame.
  • Such an extension 13 is visible in FIG. 2, which is designed here as a strip that extends over the entire length of the sieve shear foil 2.
  • FIG. 3 shows an exemplary embodiment in which two protruding projections are provided in the area of each longitudinal edge of the sieve shear foil 2 and are spaced apart from one another as seen in the longitudinal direction of the sieve shear foil 2 and are formed by cylinders with a circular cross section. 3 shows two of these approaches 13.
  • another cross-sectional shape would also be possible, such as elliptical or prismatic.
  • more than two projecting projections such as three or four, could also be provided in the region of each longitudinal edge of the screen shear film.
  • the sieve shear film is securely held on the shaving head frame, the sieve shear film also being able to be easily mounted or detached from the shaving head frame again.
  • the reinforcement strips can, for example, be made to extend into the area of the projections and the riveting can be carried out in such a way that they simultaneously connect the reinforcement strips and the projections to the sieve shear film, in which case the sieve shear film comes to lie between the lugs and the reinforcement strips, as shown in FIG. 1.
  • the approaches are made of plastic, they can be ultrasonically welded to the screen shear film or crimped onto the screen shear film under the influence of heat.
  • the projections and the reinforcement strips can also be injection-molded directly onto the sieve shear film as one-piece parts.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Drilling Tools (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (4)

1. Tête de coupe destinée à un rasoir à sec et comportant un cadre présentant deux entretoises longitudinales et deux parois latérales, cadre qui porte de façon détachable une feuille perforée de coupe courbée et, à l'endroit de chacun de ses deux bords longitudinaux éventuellement munis de bandes de renforcement, présente au moins deux ouvertures séparées par une distance et par lesquelles elle est fixée à des crochets faisant saillie vers l'intérieur à partir des deux entretoises longitudinales, les extrémités des crochets étant dirigées à l'opposé de la courbure de la feuille perforée de coupe, caractérisé en ce que, sur sa face extérieure qui, dans l'état accroché, est située en regard des entretoises longitudinales (3, 4) du cadre (1) de la tête de coupe, la feuille perforée de coupe (2) présente à l'endroit de chacun de ses deux bords longitudinaux, à l'intérieur de chacune des ouvertures (11, 12), au moins une pièce rapportée en saillie (13,14) qui est séparée de l'extrémité libre (15, 16) de l'entretoise longitudinale voisine (3, 4) par une distance (a) inférieure à la profondeur d'accrochage (t) des crochets (7, 8) dépassant des entretoises longitudinales, les pièces rapportées en saillie (13, 14) s'étendant dans le sens perpendiculaire à la feuille perforée de coupe (2) jusqu'au moins dans le domaine de l'épaisseur de paroi (w) des entretoises longitudinales (3, 4) à l'endroit de leurs extrémités libres.
2. Tête de coupe selon la revendication 1, caractérisée en ce que les pièces rapportées (13, 14) prévues à l'endroit des deux bords longitudinaux de la feuille perforée de coupe (2) sont réalisées sous la forme de bandes s'étendant parallèlement aux extrémités libres (15, 16) des entretoises longitudinales voisines (3, 4) du cadre (1) de la tête de coupe.
3. Tête de coupe selon la revendication 2, caractérisée en ce que les bandes s'étendent sur toute la longueur de la feuille perforée de coupe (2).
4. Tête de coupe selon l'une quelconque des revendications précédentes, caractérisée en ce que la dimension dans le sens perpendiculaire à la feuille perforée de coupe (2) des pièces rapportées en saillie (13, 14) prévues à l'endroit des deux bords longitudinaux de la feuille perforée de coupe (2) est essentiellement égale à l'épaisseur de paroi (w) des entretoises longitudinales (3, 4) à l'endroit de leurs extrémités libres.
EP86200733A 1985-05-02 1986-04-29 Tête de coupe pour rasoir à sec Expired - Lifetime EP0200278B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0131185A AT385448B (de) 1985-05-02 1985-05-02 Scherkopf fuer einen trockenrasierapparat
AT1311/85 1985-05-02

Publications (3)

Publication Number Publication Date
EP0200278A2 EP0200278A2 (fr) 1986-11-05
EP0200278A3 EP0200278A3 (en) 1987-01-21
EP0200278B1 true EP0200278B1 (fr) 1990-04-04

Family

ID=3511140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200733A Expired - Lifetime EP0200278B1 (fr) 1985-05-02 1986-04-29 Tête de coupe pour rasoir à sec

Country Status (7)

Country Link
US (1) US4707916A (fr)
EP (1) EP0200278B1 (fr)
JP (1) JPS61255684A (fr)
AT (2) AT385448B (fr)
CA (1) CA1260690A (fr)
DE (1) DE3670031D1 (fr)
ES (1) ES296641Y (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3833179A1 (de) * 1988-09-30 1990-04-05 Braun Ag Scherkopf fuer trockenrasierapparate
DE4029377C1 (fr) * 1990-09-15 1991-08-08 Braun Ag, 6000 Frankfurt, De
AT398719B (de) * 1992-07-24 1995-01-25 Philips Nv Rasierapparat mit einem scherkopfrahmen und einem an diesem festhaltbaren folienrahmen
AT398720B (de) * 1992-07-24 1995-01-25 Koninkl Philips Electronics Nv Rasierapparat mit einem scherkopfrahmen und einem an diesen angefederten folienrahmen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5410909B2 (fr) * 1975-01-27 1979-05-10
FR2319466A1 (fr) * 1975-07-29 1977-02-25 Seb Sa Systeme de fixation d'une micro-grille de rasoir electrique sur son support et rasoir electrique s'y rapportant
DE2637302A1 (de) * 1976-08-19 1978-02-23 Braun Ag Scherkopf fuer trockenrasierapparate
NL7713047A (nl) * 1977-11-28 1979-05-30 Philips Nv Scheerapparaat.
DE2843657A1 (de) * 1978-10-06 1980-04-10 Braun Ag Trockenrasierapparat mit einem scherkopfrahmen und einem in diesen einsetzbaren hilfsrahmen
NL7811437A (nl) * 1978-11-21 1980-05-23 Philips Nv Scheerapparaat.
DE3302610C2 (de) * 1983-01-27 1986-03-27 Braun Ag, 6000 Frankfurt Scherkopf für Trockenrasierapparate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, unexamined applications, Sektion M, Band 1, Nr. 51, 18. Mai 1977 THE PATENT OFFICE JAPANESE GOVERNMENT Seite 285 M 77 *

Also Published As

Publication number Publication date
EP0200278A3 (en) 1987-01-21
DE3670031D1 (de) 1990-05-10
ES296641Y (es) 1989-10-16
US4707916A (en) 1987-11-24
ATE51563T1 (de) 1990-04-15
ATA131185A (de) 1987-09-15
EP0200278A2 (fr) 1986-11-05
CA1260690A (fr) 1989-09-26
ES296641U (es) 1987-12-16
JPS61255684A (ja) 1986-11-13
AT385448B (de) 1988-03-25

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