EP0476326A1 - Cadre de changement pour rasoir à sec - Google Patents

Cadre de changement pour rasoir à sec Download PDF

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Publication number
EP0476326A1
EP0476326A1 EP91113899A EP91113899A EP0476326A1 EP 0476326 A1 EP0476326 A1 EP 0476326A1 EP 91113899 A EP91113899 A EP 91113899A EP 91113899 A EP91113899 A EP 91113899A EP 0476326 A1 EP0476326 A1 EP 0476326A1
Authority
EP
European Patent Office
Prior art keywords
shaving
holding plate
foil
longitudinal
shaving foil
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
EP91113899A
Other languages
German (de)
English (en)
Other versions
EP0476326B1 (fr
Inventor
Jürgen Wolf
Wolfgang Franke
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 AT91113899T priority Critical patent/ATE91945T1/de
Publication of EP0476326A1 publication Critical patent/EP0476326A1/fr
Application granted granted Critical
Publication of EP0476326B1 publication Critical patent/EP0476326B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26B19/048Complete cutting head being movable
    • 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
    • B26B19/102Cutting 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 with a secondary cutting unit being translated or slid into an operating position

Definitions

  • the invention relates to an interchangeable frame for a shaving apparatus, consisting of two longitudinal webs running parallel to one another and end cheeks connecting the longitudinal webs at the ends, and at least one shaving foil which is hung on the two longitudinal webs on inwardly projecting projections by means of hook-in openings and by means of a running parallel to the longitudinal webs , the forehead connecting longitudinal web is formed into a curved double-head shear foil knife.
  • JP-A 51/129353 discloses a dry shaving apparatus with a shaving foil which is arched in a shaving head frame.
  • the shaving foil is provided in the area of its two longitudinal edges with two openings, by means of which it is detachably suspended on hooks projecting inwards from the two longitudinal webs of the shaving head frame.
  • Protrusions are formed on the longitudinal webs of the shaving head frame below the hooks, which prevent the shaving foil from sliding off the hooks and a diving movement of the shaving foil along the wall of the longitudinal webs in the direction of the housing of the dry shaving apparatus by engaging the lower side edges of the shaving foil.
  • the support of the shaving foil on the projections in connection with the shaving pressure exerted on the shaving foil results in a bulging of the shaving foil.
  • the relatively thin and flexible shaving foil cannot withstand such a load in the long run. Due to the bulging effect, the shaving foil unlatches from the hook or it breaks in the load area.
  • a dry shaving apparatus with two shaving foils that are arched in an interchangeable frame is known.
  • the interchangeable frame consists of two longitudinal webs running parallel to each other and the end cheeks connecting them at the ends as well as two shaving foils which are hooked and supported on the two longitudinal webs on inwardly projecting hooks and projections.
  • a central web which runs parallel to the longitudinal webs and connects the forehead cheeks, to which the two shaving foils are also fastened, causes the two shaving foils to curve to form a double-headed shaving foil knife.
  • Such an interchangeable frame is obviously used by the applicant's razor.
  • the invention has for its object to provide a double-head foil cutter suspension which improves the shaving performance of the shaving system and increases the service life of the double-head foil knife.
  • this object is achieved in that a contact surface and a pin is formed by at least one step-shaped shoulder provided on the projections and the contact surface is at a predetermined distance from the inner wall of the shear foil slidably attached to the longitudinal webs, that the suspension openings in are formed vertically and horizontally larger than the contours of the projections, that each of the two longitudinal webs is assigned a parallel to this holding plate with openings for the pin, that the holding plate is attached to the contact surfaces on the pin, and that the respective Retaining plate extends in the horizontal direction protruding beyond the hanging openings of the shaving foil.
  • Such attachment of a double-headed shaving foil knife ensures a perfect immersion movement of the shaving foil along the inner walls of the longitudinal webs of the interchangeable frame under the shaving pressure acting on them and consequently an optimal interaction with the lower blades of the shaving apparatus.
  • the holding plates which are in contact with the contact surfaces of the projections and fastened to the projections by means of pins, serve, in conjunction with the predetermined distance of the contact surfaces from the respective inner wall of the longitudinal webs, for stress-free suspension and movement of the shaving foil and thus make a considerable contribution to increasing the life of the shaving foil.
  • the holding plate is flat on both sides.
  • the size of the distance x of the contact surface to the inner wall of the longitudinal web is determined in this embodiment by the thickness of the shaving foil and by the predetermined distance a from the inner wall of the shaving foil to the wall of the holding plate opposite this.
  • the holding plate is profiled.
  • the holding plate is preferably profiled in a U-shape in order to increase the rigidity of the relatively thin holding plate.
  • the size of the distance x from the contact surface to the inner wall of the longitudinal web is determined by the thickness of the shaving foil and by the predetermined distance of the inner wall of the shaving foil from the wall of the holding plate opposite this, and which is derived from the profiling of the Retaining plate resulting distance of the contact surface of the retaining plate on the contact surface of the projection to the wall of the retaining plate.
  • the holding plates are on the longitudinal webs in the area of End cheek support surfaces for the retaining plates extending beyond the respective long sides of the shaving foil are formed. This additional support of the holding plates facilitates their assembly and fastening when riveting or during melt deformation and ensures an even distance between the holding plate and the shaving foil.
  • the shaving foil or the shaving foils of the double-head shaving foil knife are held immovably on the longitudinal web in the horizontal direction and movable in the vertical direction, and the depth of immersion of the shaving foil or shaving foil on the inner wall of the longitudinal webs by the vertical distance of the opening edge of the hanging openings Top of the protrusions formed.
  • the shaving foil or the shaving foils of the double-head shaving foil knife are fixed immovably on the longitudinal web and the immersion depth of the shaving foil or shaving foils on the inner wall of the longitudinal webs is formed by the vertical distance of the opening edge of the hanging openings from the top of the projections.
  • Fig. 1 shows an electric dry shaver, on the housing 1, a shaving head 2 is pivotally mounted between two holding arms 3 and 4.
  • the shaving head 2 consists of a shaving head frame 5 and an exchangeable frame 6 which is removably fastened thereto, with a double-head shaving foil knife.
  • double-curved shaving foil 7 which can be made in one or two parts, two lower knives 8, 9 are provided, of which the lower knife 8 is shown visibly by means of an area exposed in the shaving foil.
  • the interchangeable frame 6 is arranged between the end walls 15, 16 of the shaving head frame 5 and is detachably held by means of locks 18 arranged in the sides 17 thereof, as is shown, for example, by the cutout on the interchangeable frame 6.
  • the corrugation 10 provided on the outer sides of the longitudinal webs 11, 12 of the interchangeable frame 6 - see FIG. 2 - facilitates the coupling or decoupling of the interchangeable frame 6 from the shaving head frame 5.
  • an on / off switch 13 to which a long hair cutter 14 is assigned, is arranged on the front of the shaving apparatus.
  • FIG. 2 shows a cross section through the interchangeable frame 6 according to FIG. 1.
  • the lower cutters 8, 9 additionally shown here serve to facilitate understanding of the design and fastening of the double-head shear foil knife on the interchangeable frame 6 and the interaction of these components.
  • the interchangeable frame 6 consists of a frame formed by two parallel longitudinal webs 11, 12 and end cheeks 19 which connect these longitudinal webs at the end - of which only one front cheek is visible in FIG. 2 - and one extending parallel to the longitudinal webs 11 and 12 Longitudinal web 20 which is integrally formed on the end cheeks 19 and a domed double-head shear foil knife, the two long sides 21, 22 of which are held on the corresponding longitudinal webs 11, 12.
  • the double-head shaving foil knife consists of two shaving foils 23, 24, which are slidably held with their outer longitudinal sides 21, 22 on the longitudinal webs 11, 12 and with their inner longitudinal sides 25, 26 on the longitudinal web 20 both in the direction of vibration of the resilient stored lower knife 8, 9 and in the vertical direction - arrow A - are immovably attached.
  • 20 pins 27, 46, 47 are formed on the two longitudinal sides 44, 45 and on the side walls of the longitudinal web. These pins penetrate corresponding openings provided in a U-shaped holding part 28 and bring about a locking of the shaving foil both in the vertical and in the horizontal direction.
  • the holding part 28 is firmly connected to the longitudinal web 20 by means of melt deformation of the pins 46 and 47.
  • the double-head foil cutter can also be made in one piece. In such an embodiment, the shaving foil is guided around the longitudinal web 20.
  • the pins 46, 47, 27 pass through corresponding openings provided in the one-piece shaving foil, the shape of the pins and the openings in the Shaving foil is taken such that only a vertical immersion movement in the direction of arrow A, but not a movement in the direction of vibration of the lower blades 8, 9 is guaranteed.
  • the openings in the shaving foil penetrated by the pins 46 and 47 can be designed as elongated holes extending in the vertical direction with a vertical longitudinal extension corresponding to the immersion movement of the shaving foil.
  • FIG. 3 shows in the direction of arrow B of FIG. 2, one half of the inner wall 31 of the longitudinal web 12 with a projection 30 formed at a distance from the end cheek 19 of the interchangeable frame 6 shown in section.
  • the projection 30 is designed in a step-shaped manner to form a contact surface 33 and of a pin 34.
  • the long side 21 of the shaving foil 7, which arched around the end cheek 19, is stepped at the end in the region of the longitudinal web 12 in the direction of the projection 30.
  • a rectangular hook-in opening 35 is provided in its longitudinal side 21 with an opening cross-section which is larger in both the vertical and horizontal directions than the outline of the projection 30 on the longitudinal web 12.
  • the hanging opening 35 at the lower edge of the projection 30 results in a distance y from the upper edge of the hanging opening 35 to the upper edge of the projection 30.
  • the size of this distance y depends in each case on the diving movement required for the shaving head of a dry shaving apparatus on the longitudinal webs 11 , 12 movable shaving foil 7.
  • the distance between the contact surface 33 and the inner wall 31 of the longitudinal web 12 is greater than the thickness d of the shaving foil 7. Accordingly, the holding plate 37 provided with an opening 36 and pushed onto the pin 34 comes to rest against the contact surface 33 Retaining plate 37 is then attached to the contact surface 33 by melt deformation or riveting of the pin 34.
  • a support surface 38 for the holding plate 37 extending beyond the longitudinal sides 21 is formed on the respective longitudinal ends of the longitudinal webs 11 and 12 adjacent to the end cheeks 19 and to the step-like shoulder of the longitudinal sides 21 of the shaving foil 7, the Surfaces of the support surfaces 38 and the contact surfaces 33 of the projections lie in a common plane.
  • the respective holding plate 37 rests on a total of four surfaces, namely two contact surfaces 33 and two support surfaces 38, and is thereby precisely aligned and stabilized.
  • this four-surface system facilitates the attachment of the holding plates 37 to the projections 30.
  • the projection 30 formed on the inner wall 31 of the longitudinal web 12 has the shape of a trapezoid and projects through the suspension opening 35 the inner wall 31 of the shaving foil 7 and, with its pin 34, the opening 36 in the holding plate 37.
  • the holding plate 37 bears against the abutment surface 33 of the projection 30 shown in dashed lines and at the end against the supporting surface 38 - see FIG. 3.
  • the size of the distance x between the contact surface 33 and the inner wall 31 of the longitudinal web 12 is determined by the thickness d of the shaving foil 7 plus a predetermined distance a between the inner wall 39 of the shaving foil 7 and the opposite wall 40 of the flat holding plate 37.
  • the depth z resulting from the U-shape must also be added.
  • the shaving foil 7 is thus movably fastened on the projections 30 formed on the longitudinal webs 11 and 12 by means of the holding plates 37.
  • the vertical immersion movement of the shaving foil 7 by the amount y along the inner walls 31 of the longitudinal webs 11, 12 is achieved on the one hand by a corresponding dimensioning of the hanging opening 35 and the outlines of the projections 30 and the distance a between the inner wall 39 of the shaving foil 7 and the opposite wall 40 of the holding plate 37 guaranteed.
  • two step-shaped shoulders are provided on the projections 30, each of which is separated from the other by a pin 34.
  • This measure results in two contact surfaces 33, 41 extending in the horizontal direction and a pin 34 protruding therefrom with a length which is greater than the thickness of the holding plate 37 arranged on the pin 34. This is then done on the contact surfaces 33, 41 attached retaining plate 37 attached to the projections 30 by riveting or melt deformation of the pin 34.
EP91113899A 1990-09-15 1991-08-20 Cadre de changement pour rasoir à sec Expired - Lifetime EP0476326B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91113899T ATE91945T1 (de) 1990-09-15 1991-08-20 Wechselrahmen fuer einen trockenrasierapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4029377A DE4029377C1 (fr) 1990-09-15 1990-09-15
DE4029377 1990-09-15

Publications (2)

Publication Number Publication Date
EP0476326A1 true EP0476326A1 (fr) 1992-03-25
EP0476326B1 EP0476326B1 (fr) 1993-07-28

Family

ID=6414371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113899A Expired - Lifetime EP0476326B1 (fr) 1990-09-15 1991-08-20 Cadre de changement pour rasoir à sec

Country Status (6)

Country Link
US (1) US5163227A (fr)
EP (1) EP0476326B1 (fr)
JP (1) JP3016921B2 (fr)
AT (1) ATE91945T1 (fr)
DE (2) DE4029377C1 (fr)
ES (1) ES2042327T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611145A (en) * 1991-12-20 1997-03-18 Wetzel; Matthias Dry-shaving apparatus
AT398719B (de) * 1992-07-24 1995-01-25 Philips Nv Rasierapparat mit einem scherkopfrahmen und einem an diesem festhaltbaren folienrahmen
DE4303972C1 (de) * 1993-02-11 1993-10-14 Braun Ag Trockenrasierapparat mit einem schwenkbar gelagerten Scherkopfsystem
DE4410543C1 (de) * 1994-03-26 1994-12-22 Braun Ag Trockenrasierapparat mit Obermesser-Rahmenverriegelung
DE19832475C1 (de) * 1998-07-20 2000-03-09 Braun Gmbh Trockenrasierapparat
USD421667S (en) * 1998-11-06 2000-03-14 Braun Gmbh Shaver
KR200373625Y1 (ko) * 2004-10-12 2005-01-27 오태준 헤드무빙면도기
KR200396685Y1 (ko) * 2005-06-21 2005-09-26 오태준 이단걸림 외도대를 구비한 전기면도기
JP2022155347A (ja) * 2021-03-30 2022-10-13 パナソニックIpマネジメント株式会社 電気かみそり

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440725A (en) * 1962-07-24 1969-04-29 Braun Ag Mounting of dry shaver shearing foil
DE1553811A1 (de) * 1967-08-28 1971-04-15 Sunbeam Corp Rasierapparat
DE2019746A1 (de) * 1970-04-23 1971-11-04 Braun Ag Trockenrasierapparat
FR2216069A1 (fr) * 1973-02-05 1974-08-30 Schick Inc
JPS51129353A (en) * 1975-04-30 1976-11-10 Matsushita Electric Works Ltd Outer blade mounting devise for electric razor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566473A (en) * 1968-06-11 1971-03-02 Sperry Rand Corp Cutter head attachment means
US3594902A (en) * 1969-03-13 1971-07-27 Schick Electric Inc Shaver
US3646673A (en) * 1969-08-26 1972-03-07 Suwa Seikosha Kk Electric dry shaver with movable comb
JPS5356557A (en) * 1976-10-29 1978-05-23 Matsushita Electric Works Ltd Outer blade block for electric razor
US4081902A (en) * 1976-12-07 1978-04-04 Sperry Rand Corporation Cutter head assembly for an electric dry shaver
US4292737A (en) * 1978-12-11 1981-10-06 The Gillette Company Dry shaver with differentially biased inner cutter and base members
AT385448B (de) * 1985-05-02 1988-03-25 Philips Nv Scherkopf fuer einen trockenrasierapparat
US4825542A (en) * 1987-01-30 1989-05-02 Remington Products, Inc. Electric dry shaver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440725A (en) * 1962-07-24 1969-04-29 Braun Ag Mounting of dry shaver shearing foil
DE1553811A1 (de) * 1967-08-28 1971-04-15 Sunbeam Corp Rasierapparat
DE2019746A1 (de) * 1970-04-23 1971-11-04 Braun Ag Trockenrasierapparat
FR2216069A1 (fr) * 1973-02-05 1974-08-30 Schick Inc
JPS51129353A (en) * 1975-04-30 1976-11-10 Matsushita Electric Works Ltd Outer blade mounting devise for electric razor

Also Published As

Publication number Publication date
US5163227A (en) 1992-11-17
DE59100229D1 (de) 1993-09-02
ES2042327T3 (es) 1993-12-01
JPH04261689A (ja) 1992-09-17
JP3016921B2 (ja) 2000-03-06
ATE91945T1 (de) 1993-08-15
DE4029377C1 (fr) 1991-08-08
EP0476326B1 (fr) 1993-07-28

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