EP0480147A1 - Feuille coupante de rasoir - Google Patents

Feuille coupante de rasoir Download PDF

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Publication number
EP0480147A1
EP0480147A1 EP91113898A EP91113898A EP0480147A1 EP 0480147 A1 EP0480147 A1 EP 0480147A1 EP 91113898 A EP91113898 A EP 91113898A EP 91113898 A EP91113898 A EP 91113898A EP 0480147 A1 EP0480147 A1 EP 0480147A1
Authority
EP
European Patent Office
Prior art keywords
elevations
shaving foil
shaving
openings
webs
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
EP91113898A
Other languages
German (de)
English (en)
Other versions
EP0480147B1 (fr
Inventor
Werner Messinger
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 AT91113898T priority Critical patent/ATE97846T1/de
Publication of EP0480147A1 publication Critical patent/EP0480147A1/fr
Application granted granted Critical
Publication of EP0480147B1 publication Critical patent/EP0480147B1/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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/384—Dry-shaver foils; Manufacture thereof

Definitions

  • the invention relates to a shaving foil for a dry shaver with numerous, elongated and / or round and / or polygonal openings arranged next to one another, knob-like elevations being provided in the region of webs lying between the openings on the side facing the skin surface.
  • a shaving blade for dry shavers (DE OS 1 957 551) is already known, which is provided with numerous elevations on the skin contact side.
  • the elevations are shaped like a hill and are sharp-edged, knife-like and lie in the edge region of the respective opening provided in the shaving foil. They have a steeply sloping part towards the edge of the openings and a flatly sloping part towards the next opening.
  • the elevations are intended to reinforce part of the border of the shear opening and serve as a means of straightening the hair.
  • the elevations drop sharply only to one side of the openings, the dry shaving device is only effective in one direction, so that the shaving result of the device is greatly impaired.
  • a dry shaving device of the type mentioned at the outset is known (JA OS 58-15883), which is equipped with a shaving foil with numerous elongated hole openings arranged next to one another.
  • the individual elongated holes are arranged in several rows, with each row being slightly offset from the neighboring row.
  • the elevations are conical or hemispherical. This is to facilitate the threading process.
  • the web width is wider than the width across flats of the openings and the individual elevations are at a relatively large distance from the edges of the openings, the process of threading the whiskers is not supported in the desired manner.
  • the object of the invention is to design and arrange the individual elevations provided on the webs in such a way that a sufficient size of the openings can be maintained in order to achieve good cutting quality with optimal protection of the skin.
  • the object is achieved in that the elevations are provided at least in the region of nodes of webs of a plurality of adjacent openings.
  • the elevations are provided on the nodes and / or narrowing of the material fiber course of the webs surrounding the round-shaped and / or polygonal openings.
  • the increases in the area of the nodes lead to an improvement in the skin walk effect and to the optimization of the threading process of the whiskers during the shaving process. This can improve the quality of the cut and thus the overall shaving performance.
  • the shaving foil can have a diameter between 8 and 13 mm in order to achieve optimal shaving performance.
  • the use of the elevations therefore also offers the possibility of both reducing the film thickness and reducing the web width, in order to thereby either increase the width across flats, whereby the width across flats may only be increased until the limit is reached at which skin irritation could occur and / or the number of openings in the perforated field of the film could be increased.
  • the elevations are provided on the intersections of intersecting center lines of webs or openings, the web width being smaller than the width across flats of the openings.
  • the openings are polygonal, advantageously hexagonal and at least one elevation is provided in the area of each corner. It is also advantageous that the elevations are arranged at regular intervals and surround each opening in a circle. This results in a symmetrical arrangement of the elevations around each opening, so that a good shaving performance is always guaranteed, no matter in which direction the shaver is moved.
  • the ridges have a height that is equal to or less than the height of the web.
  • the elevations are formed from the same material as the rest of the shaving foil. It is also possible for the elevations to be formed from a different material than the rest of the shaving foil. In this way, the skin walk effect can be influenced or optimized in a simple manner.
  • the advantageous use of the elevations or knobs provided on the shaving foil, in particular in the knot bw. Zwikkel Scheme the webs formed by the openings, in addition to a good shaving performance, the life of the shaving foil significantly increased, since a high resilience of the shaving foil is guaranteed while maintaining high elasticity.
  • the shaving quality is influenced in a simple manner by the favorable ratio of the hole opening to the web width and by the favorable web height in the region of the knobs.
  • FIG. 1 denotes a dry shaving apparatus in FIG. 1, which consists of a housing 5 with an electric motor (not shown in the drawing) for driving a knife block 7.
  • an electric motor (not shown in the drawing) for driving a knife block 7.
  • a slide switch 9 On the outside of the housing 5 there is a slide switch 9, by means of which the electric motor can be switched on and off.
  • the knife block 7, which is surrounded by a shaving foil 2 is arranged on an oscillation axis.
  • the dry shaving apparatus 1 can be equipped with a single knife block according to FIG. 1 or with a double knife block 7a according to FIG. 2.
  • the flexing effect of the double shaving film on the skin is improved by the two closely spaced double shaving films 2a, and the whiskers are thereby straightened up, so that they can be threaded into the openings 6 of the double shaving film 2a much more easily.
  • the pivotable shaving head and the double shaving foil 2a constant optimal skin contact is guaranteed, since the perfect shaving angle is always established. This gives you a thorough and gentle shave.
  • a further improvement in the flexing effect results from the use of knobs 12, as explained in more detail in the description below.
  • FIG. 8 shows a shaving foil 2 in the unwound state.
  • the shaving foil 2 has numerous openings 6 arranged next to one another, which can advantageously be round, oval, oblong or polygonal, in particular hexagonal.
  • the individual openings 6 are hexagonal. This results in a honeycomb arrangement of the individual openings 6.
  • the individual openings 6 are delimited by straight webs 8.
  • the individual webs 8 can also be curved, circular or slightly corrugated.
  • the shaving foil 2 is composed of the web height SH and the nub height NH of the elevations or nubs 12 arranged on the webs 8.
  • the thickness of the shaving foil GSH results from NH and SH.
  • a shaving foil without knobs SH has, for example, 60u
  • the thickness of the shaving foil can be reduced by the proportion of the knob height NH.
  • the knobs 12 are advantageously arranged in the nodes 13 of the webs 8.
  • the point 13 is to be understood as the point at which at least two center lines 3 of two or more webs 8 intersect.
  • the junction 13 of the webs 8 is subjected to the greatest stresses in terms of tension, pressure, bending and twisting, so that inadequate dimensioning of the shaving foil 2, particularly in the area of the junction, can result in breakage.
  • the knobs 12 are advantageously provided in particular in the area of the intersection of the webs 8 and thus contribute to the reinforcement of the critical points of the shaving foil 2. This also makes it possible to reduce the normal web height SH by approximately the amount of the nub height NH (cf. FIG. 3).
  • the knobs 12 are arranged at regular intervals and surround each opening 6 in a circle.
  • the opening 6, that is to say the width across flats SW in can also be opened make the shaving foil 2 larger than the opening of a shaving foil, which is equipped without knobs - see dashed line.
  • film material is advantageously saved as a side effect.
  • the elevations 12 with their lower outlet ends can gradually merge into the front edge 11 of a web 8 (see FIG. 3 and FIG. 7).
  • the knobs 12 have a further advantage, namely that they contribute significantly to improving the skin walk effect. By sliding the knobs 12 over the skin, this is partially stretched and the whiskers emerge more from the pores, so that after the threading process into the opening 6 they are gripped and separated by the knife of the blade block much better.
  • the diameter di of the knobs 12 at the upper end is somewhat larger than the diameter d 2 of the opening 6.
  • the angle A is 90 °.
  • the angle A is advantageously between 70 and 100 °.
  • the knobs 12 are spherical or hemispherical in accordance with FIG. They can have the shape of a truncated cone or pyramid.
  • the knobs 12 can be made of a different material than the rest of the shaving foil 2, the surface of the knobs 12 having a different sliding effect than the rest of the material of the shaving foil 2.
  • the knobs 12 can be made of to produce a galvanoplastic material, a thermoplastic plastic or a ceramic material. This can have a positive effect on the skin walk effect.
  • At least one further elevation 12 is provided on the webs 8 between the individual elevations 12 provided on the corner points (see in particular FIG. 8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)
  • Laminated Bodies (AREA)
EP91113898A 1990-10-08 1991-08-20 Feuille coupante de rasoir Expired - Lifetime EP0480147B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91113898T ATE97846T1 (de) 1990-10-08 1991-08-20 Scherfolie.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031871 1990-10-08
DE4031871A DE4031871C2 (de) 1990-10-08 1990-10-08 Scherfolie

Publications (2)

Publication Number Publication Date
EP0480147A1 true EP0480147A1 (fr) 1992-04-15
EP0480147B1 EP0480147B1 (fr) 1993-12-01

Family

ID=6415854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113898A Expired - Lifetime EP0480147B1 (fr) 1990-10-08 1991-08-20 Feuille coupante de rasoir

Country Status (5)

Country Link
US (1) US5185933A (fr)
EP (1) EP0480147B1 (fr)
JP (1) JPH04246396A (fr)
AT (1) ATE97846T1 (fr)
DE (2) DE4031871C2 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400690B (de) * 1992-11-25 1996-02-26 Philips Electronics Nv Rasiergerät mit einem folienartigen obermesser und einem folienartigen untermesser
DE4303972C1 (de) * 1993-02-11 1993-10-14 Braun Ag Trockenrasierapparat mit einem schwenkbar gelagerten Scherkopfsystem
DE19521299C1 (de) * 1995-06-12 1996-03-21 Braun Ag Trockenrasierapparat mit schwenkbar gelagertem Langhaarschneider
DE10139209A1 (de) * 2001-08-09 2003-03-06 Braun Gmbh Scherfolie für ein Schersystem
IES20050873A2 (en) * 2005-11-24 2007-05-30 P J Walls Cutter blade assembly and dry shaver for variable height of cut
US8061040B2 (en) 2002-02-01 2011-11-22 Patrick Joseph Walls Cutter blade assembly and dry shaver for variable height of cut
JP2005040358A (ja) * 2003-07-22 2005-02-17 Matsushita Electric Works Ltd シェーバー
KR100796307B1 (ko) * 2003-11-11 2008-01-21 마츠시다 덴코 가부시키가이샤 전기 면도기
DE102005002896A1 (de) * 2005-01-21 2006-07-27 Braun Gmbh Elektrisches Haarschneidegerät
US7591955B2 (en) * 2005-07-14 2009-09-22 Interplex Nas, Inc. Method for forming an etched soft edge metal foil and the product thereof
US7845079B2 (en) * 2005-07-29 2010-12-07 The Gillette Company Shaving foil
JP4396695B2 (ja) 2006-12-08 2010-01-13 パナソニック電工株式会社 電気かみそり
JP5453126B2 (ja) * 2010-01-22 2014-03-26 パナソニック株式会社 電気かみそり
JP5309067B2 (ja) * 2010-03-26 2013-10-09 パナソニック株式会社 電気かみそり
JP5385833B2 (ja) * 2010-03-26 2014-01-08 パナソニック株式会社 電気かみそり
JP5578724B2 (ja) * 2010-11-08 2014-08-27 株式会社泉精器製作所 ロータリー式電気かみそり
US9227331B2 (en) * 2012-11-06 2016-01-05 The Gillette Company Razor blade unit
EP3907047B1 (fr) 2020-05-08 2025-04-16 Braun GmbH Tondeuse électrique pour barbe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957551A1 (de) * 1969-11-15 1971-05-19 Riedel Erich O Scherblatt fuer Trockenrasierer
JPS5815883A (ja) * 1981-07-22 1983-01-29 松下電工株式会社 電気かみそりの外刃

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297915A (en) * 1938-07-19 1942-10-06 Remington Rand Inc Electric razor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957551A1 (de) * 1969-11-15 1971-05-19 Riedel Erich O Scherblatt fuer Trockenrasierer
JPS5815883A (ja) * 1981-07-22 1983-01-29 松下電工株式会社 電気かみそりの外刃

Also Published As

Publication number Publication date
DE4031871C2 (de) 1994-07-14
JPH04246396A (ja) 1992-09-02
ATE97846T1 (de) 1993-12-15
EP0480147B1 (fr) 1993-12-01
DE59100664D1 (de) 1994-01-13
DE4031871C1 (en) 1991-12-19
US5185933A (en) 1993-02-16

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