WO2006000935A1 - Hair cutting apparatus - Google Patents
Hair cutting apparatus Download PDFInfo
- Publication number
- WO2006000935A1 WO2006000935A1 PCT/IB2005/051919 IB2005051919W WO2006000935A1 WO 2006000935 A1 WO2006000935 A1 WO 2006000935A1 IB 2005051919 W IB2005051919 W IB 2005051919W WO 2006000935 A1 WO2006000935 A1 WO 2006000935A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutting
- cutting member
- driven
- hair
- edges
- Prior art date
Links
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
-
- 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
Definitions
- the invention relates to a hair cutting apparatus with a housing and at least one cutting unit which comprises a stationary cutting member and a driven cutting member performing a reciprocating movement with respect to the stationary cutting member, which driven cutting member is provided with cutting elements, each cutting element of the driven cutting member and the stationary cutting member being provided with mutually cooperating bearing surfaces having cutting edges and counter-cutting edges, respectively, for cutting hairs, said driven cutting member being provided with a coupling element, while said hair cutting apparatus further comprises a drive member for driving the driven cutting member via the coupling element.
- Such a hair cutting apparatus is known, for example, from EP 0914234 or EP 0487537. If hairs are to be cut off satisfactorily, a so-termed cutting gap that is as small as possible must be present between the cooperating cutting edges of the driven and the stationary cutting member. This has been realized in practice until now in that the driven cutting member is made resilient towards the stationary cutting member. This causes the driven cutting member to bear on the stationary cutting member under a certain bias tension, i.e. the cutting edges of the driven cutting member are urged against the cutting edges of the stationary cutting member with a certain force. The cutting gap, therefore, is in fact zero.
- Said bias tension is necessary because the driven cutting member is decelerated during cutting of a hair, and the occurring cutting edges have a direction such that the cooperating cutting edges tend to be pressed apart somewhat, which could lead to too wide a cutting gap.
- the resilient force of the drive member prevents the gap between the cutting edges from becoming too great during cutting.
- the contact pressure between the driven and the stationary cutting member is small during cutting, and the friction is correspondingly small.
- the cooperating cutting edges in fact form the bearing surfaces of an axial bearing between the stationary and the driven cutting member. In those periods in which no hairs are cut, however, the bias tension causes a comparatively great contact pressure between the cooperating cutting members, and accordingly a comparatively strong friction.
- the invention is for this purpose characterized in that means with visco-elastic properties are present between the coupling element and the driven cutting member.
- the means with visco-elastic properties have resilient as well as damping properties, i.e. the means behave rigidly in the short term and slackly in the longer term. This means that compression or tension exerted on said means in a very short time span causes them to have a comparatively rigid behavior, whereas compression or tension provided over a longer time span causes the means to be comparatively slack.
- the means with visco- elastic properties are present in the dynamic path of a closed system formed by the stationary cutting member, the driven cutting member, the coupling element, and the housing in which the cutting unit is present.
- no hairs are cut during the major portion of the cutting time.
- means having visco-elastic properties are present between the coupling element and the driven cutting member, a small cutting gap will arise between cooperating bearing surfaces during a major portion of the cutting time, i.e. both in periods in which no hairs are cut and during cutting of hairs.
- the friction between the cooperating cutting edges is accordingly small. This may be explained as follows.
- the cutting force occurring during cutting of a hair causes a pressure on the cutting edge of the driven cutting member, so that the driven cutting member tends to be pressed away from the stationary cutting member, which would lead to an undesirable cutting gap.
- the speed of the cutting process suddenly increases the pressure on the driven cutting member strongly.
- the damping properties of the visco-elastic material ensure that the sudden pressure rise is accommodated by the material, which behaves rigidly then. Nevertheless, a very small cutting gap arises between the cooperating cutting edges: the visco-elastic element is compressed slightly. After the hair has been cut through, the internal cutting member is pressed back towards the external cutting member under the influence of the resilient pressure of the visco-elastic element. In practice, however, another hair will often be cut through again before the cutting edges lie completely against one another. The cutting gap is so small that the cutting process is not adversely affected.
- Fig. 1 diagrammatically shows a hair clipper in a first embodiment
- Fig. 2 diagrammatically shows a vibratory shaving apparatus in a second embodiment
- Fig. 3 shows a detail of the cutting unit of the shaving apparatus of Fig. 2.
- the hair clipper shown in Fig. 1 has a housing 1, a cutting unit 2 comprising a stationary cutting member 3 that is fixedly fastened to the housing 1, and a driven cutting member 4.
- the cutting members 3, 4 are provided with respective cutting teeth 5, 6 which each have a bearing surface 7, 8, which surfaces cooperate with one another.
- the edges of the bearing surfaces 7, 8 have cutting edges 9, 10, respectively, which cooperate for the purpose of cutting hairs.
- the hair clipper is further provided with a drive mechanism comprising a rotary motor 11 which drives a drive member 12 and a coupling pin 13 into an eccentric movement.
- the coupling pin 13 drives a coupling element 14 so as to perform a reciprocating movement, indicated by a double arrow P.
- the coupling element 14 is for this purpose provided with a track 15 which extends transversely to the direction P of the reciprocating movement and in which the coupling pin 13 is arranged.
- the coupling element 14 is fastened by means of a visco-elastic element 16, for example glued, to the driven cutting member 4.
- the drive member 12 is provided with an axial bearing surface 17 that cooperates with an axial bearing surface 18 of the coupling element 14.
- the closed dynamic path of the cutting system is accordingly formed by the stationary cutting member 3, the driven cutting member 4, the visco-elastic element 16, the coupling element 14, and the housing 1.
- the visco-elastic properties of the visco-elastic element 16 are symbolized in the Figure by means of a spring and a damper symbol. The example shown in Fig.
- the shaving head comprises a housing 23 in which at least one cutting unit 24 is accommodated, each such unit comprising a stationary cutting member 25 in the form of a curved foil provided with a plurality of hair trap openings 26 and a driven cutting member 27 in the form of a row of cutter blades 28 bent into the shape of the foil.
- the side of the foil 25 facing the driven cutting member 27 acts as a bearing surface 29 for the cutter blades 28.
- the ends of these cutter blades in this respect form bearing surfaces 30 for cooperating with the bearing surface 29 of the foil.
- the outer edges of the hair trap openings 26 form cutting edges 31 which cooperate with cutting edges 32 present at the ends of the bearing surfaces 30 of the cutter blades 28 (see detail in Fig. 3). Hairs entering the hair trap openings 26 during use of the shaving apparatus are cut by the cooperating cutting edges.
- the shaving apparatus has a handle 22 in which the housing 23 of the shaving head 21 comprising one or several cutting units 24 is fastened.
- the cutting member 27 is reciprocally driven as indicated by a double arrow P.
- the drive mechanism for this consists of a rotary motor 23 provided in the housing of the handle 22 with a drive member 34 in the form of a coupling pin. The drive member is driven into a rotary eccentric movement.
- the drive member 34 projects through an opening 35 of a housing wall 36 of the handle 22 and through an opening 37 of a housing wall 38 of the housing 23 of the shaving head 21.
- the drive member 34 drives a coupling element 39 into a reciprocating movement.
- the coupling element 39 is for this purpose provided with a track 40 which extends transversely to the direction of the arrow P (perpendicularly to the plane of drawing) and in which the drive member 34 is present.
- the coupling element 39 is suspended in the housing 23 of the shaving head 21 by means of blade springs 41. Since the amplitude of the reciprocating movement of the coupling element 39 is small, its vertical movement is negligible.
- the coupling element 39 is connected to the driven cutting member 27 by means of a visco-elastic element 42.
- the cutting member 27 has a connecting part 43 that is pivotably connected to the cutting member for this purpose.
- the visco-elastic element 42 is fastened, for example glued, to the connecting part 43.
- the closed dynamic path of the cutting system is accordingly formed by the stationary cutting member 25 (foil), the driven cutting member 27, the connecting part 43, the visco-elastic element 42, the coupling element 39, the blade springs 41, and the housing 23 of the shaving head 21.
- the visco-elastic properties of the visco-elastic element 42 are symbolized in the Figure by a spring and a damper symbol.
- the shaving head 21 can be pivotably provided in the handle 22. This is indicated in Fig.
- the means having visco-elastic properties may comprise one element with both resilient and damping properties.
- Materials having visco-elastic properties are, for example, polyborosiloxanes and bitumen. It is alternatively possible, however, for the means to comprise a plurality of elements, which all have both resilient and damping properties, or among which certain elements have only resilient and other elements have only damping properties. The elements must be connected in parallel in the latter case.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05747357A EP1763422B1 (en) | 2004-06-21 | 2005-06-10 | Hair cutting apparatus |
JP2007517582A JP5285907B2 (en) | 2004-06-21 | 2005-06-10 | Hair cutting equipment |
KR1020067026660A KR101329274B1 (en) | 2004-06-21 | 2005-06-10 | Hair cutting apparatus |
DE602005003368T DE602005003368T2 (en) | 2004-06-21 | 2005-06-10 | HAIR CUTTER |
US11/630,393 US7954243B2 (en) | 2004-06-21 | 2005-06-10 | Hair cutting apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04102823.4 | 2004-06-21 | ||
EP04102823 | 2004-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006000935A1 true WO2006000935A1 (en) | 2006-01-05 |
Family
ID=34970614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/051919 WO2006000935A1 (en) | 2004-06-21 | 2005-06-10 | Hair cutting apparatus |
Country Status (8)
Country | Link |
---|---|
US (1) | US7954243B2 (en) |
EP (1) | EP1763422B1 (en) |
JP (1) | JP5285907B2 (en) |
KR (1) | KR101329274B1 (en) |
CN (1) | CN100478146C (en) |
AT (1) | ATE378154T1 (en) |
DE (1) | DE602005003368T2 (en) |
WO (1) | WO2006000935A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007125491A1 (en) * | 2006-05-01 | 2007-11-08 | Koninklijke Philips Electronics N.V. | Cutting device and hair-cutting apparatus |
WO2008015606A1 (en) * | 2006-07-31 | 2008-02-07 | Koninklijke Philips Electronics N.V. | Shaving apparatus comprising two cutting members which are allowed limited movement with respect to each other |
WO2009024890A1 (en) * | 2007-08-17 | 2009-02-26 | Koninklijke Philips Electronics N.V. | Shaving assembly comprising hair cutting elements and a mechanism for aligning the hair cutting elements |
US7954243B2 (en) * | 2004-06-21 | 2011-06-07 | Koninklijke Philips Electronics N.V. | Hair cutting apparatus |
EP3117972A1 (en) * | 2015-07-17 | 2017-01-18 | WAHL GmbH | Cutting set for a machine for cutting hair with hair transport element and machine for cutting hair with hair transport element |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120084983A1 (en) * | 2010-10-08 | 2012-04-12 | Wahl Clipper Corporation | Drive system for rotary driven hair clippers |
RU2628589C2 (en) | 2012-12-20 | 2017-08-21 | Конинклейке Филипс Н.В. | Cutting unit for hair clipping device |
USD779123S1 (en) | 2014-11-12 | 2017-02-14 | Medline Industries, Inc. | Clipper head |
US9713877B2 (en) | 2014-11-12 | 2017-07-25 | Medline Industries, Inc. | Clipper head with drag reduction |
USD795497S1 (en) | 2016-01-15 | 2017-08-22 | Medline Industries, Inc. | Clipper |
USD794871S1 (en) | 2016-01-15 | 2017-08-15 | Medline Industries, Inc. | Clipper |
USD802216S1 (en) | 2016-06-10 | 2017-11-07 | Medline Industries, Inc. | Clipper head |
USD802214S1 (en) | 2016-06-10 | 2017-11-07 | Medline Industries, Inc. | Clipper head |
USD802215S1 (en) | 2016-06-10 | 2017-11-07 | Medline Industries, Inc. | Clipper head |
USD802217S1 (en) | 2016-06-10 | 2017-11-07 | Medline Industries, Inc. | Clipper head |
USD952946S1 (en) | 2017-09-01 | 2022-05-24 | Church & Dwight Co., Inc. | Hair removal device |
USD925830S1 (en) | 2019-07-19 | 2021-07-20 | Church & Dwight Co., Inc. | Head assembly for hair removal apparatus |
USD914977S1 (en) | 2019-07-19 | 2021-03-30 | Church & Dwight Co., Inc. | Handle for hair removal apparatus |
CN110575097A (en) * | 2019-09-30 | 2019-12-17 | 苏州知一得智能技术有限公司 | rolling brush winding cutting device and dust collection device applying same |
USD914978S1 (en) | 2019-10-18 | 2021-03-30 | Church & Dwight Co., Inc. | Hair removal apparatus |
USD936899S1 (en) | 2019-10-18 | 2021-11-23 | Church & Dwight Co., Inc. | Hair removal apparatus |
USD942687S1 (en) | 2019-11-18 | 2022-02-01 | Church & Dwight Co., Inc. | Articulating blade assembly for hair removal device |
USD940958S1 (en) | 2019-11-18 | 2022-01-11 | Church & Dwight Co., Inc. | Articulating blade assembly for hair removal device |
WO2021167652A1 (en) | 2020-02-18 | 2021-08-26 | Spectrum Brands, Inc. | Hair dryer assembly having hair receiving channel |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1129862B (en) * | 1961-06-19 | 1962-05-17 | Steidinger Geb | Shaving head for dry shaver |
US3079687A (en) * | 1959-07-09 | 1963-03-05 | Sunbeam Corp | Hair clipper |
US3266143A (en) * | 1963-08-20 | 1966-08-16 | Supreme Products Corp | Sealing means for a hair clipper |
US3343259A (en) * | 1965-06-28 | 1967-09-26 | Tyne Impex Est | Reciprocating cutter head with foam rubber mounting means |
US20040010922A1 (en) * | 2002-07-18 | 2004-01-22 | Wahl Clipper Corporation | Hair clipper and seal |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3926894C1 (en) | 1989-08-16 | 1990-12-06 | Braun Ag, 6000 Frankfurt, De | |
AT395125B (en) * | 1991-01-18 | 1992-09-25 | Philips Nv | ELECTRIC DRY SHAVER |
JPH06218155A (en) * | 1993-01-26 | 1994-08-09 | Matsushita Electric Works Ltd | Electric razor |
JPH0731755A (en) * | 1993-07-19 | 1995-02-03 | Matsushita Electric Works Ltd | Hair cutter |
KR0121137Y1 (en) * | 1993-12-29 | 1998-07-15 | 김광호 | Shaver |
EP0914234B1 (en) | 1997-04-24 | 2003-10-15 | Koninklijke Philips Electronics N.V. | Hair-cutting apparatus having a toothed cutting device, and toothed cutting device for a hair-cutting apparatus |
US6177173B1 (en) * | 1998-07-01 | 2001-01-23 | 3M Innovative Properties Company | Damped laminates having welded through holes and/or edges with decreased spring back and improved fastener force retention and, a method of making |
DE19859622A1 (en) * | 1998-12-23 | 2000-07-06 | Braun Gmbh | Drive device for oscillating electrical products for personal use, in particular dry shavers |
JP2001130860A (en) * | 1999-11-04 | 2001-05-15 | Mitsubishi Electric Corp | Handrail inlet device for passenger conveyor |
JP3739029B2 (en) * | 1999-12-16 | 2006-01-25 | 住友ゴム工業株式会社 | Friction test equipment |
KR101329274B1 (en) * | 2004-06-21 | 2013-11-14 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Hair cutting apparatus |
EP1761366B1 (en) * | 2004-06-21 | 2010-09-15 | Koninklijke Philips Electronics N.V. | Shaving apparatus |
KR101315089B1 (en) * | 2004-06-21 | 2013-10-07 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Shaving apparatus and a cutting unit |
-
2005
- 2005-06-10 KR KR1020067026660A patent/KR101329274B1/en not_active IP Right Cessation
- 2005-06-10 AT AT05747357T patent/ATE378154T1/en not_active IP Right Cessation
- 2005-06-10 JP JP2007517582A patent/JP5285907B2/en not_active Expired - Fee Related
- 2005-06-10 US US11/630,393 patent/US7954243B2/en not_active Expired - Fee Related
- 2005-06-10 CN CNB2005800204332A patent/CN100478146C/en not_active Expired - Fee Related
- 2005-06-10 WO PCT/IB2005/051919 patent/WO2006000935A1/en active IP Right Grant
- 2005-06-10 DE DE602005003368T patent/DE602005003368T2/en active Active
- 2005-06-10 EP EP05747357A patent/EP1763422B1/en not_active Not-in-force
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3079687A (en) * | 1959-07-09 | 1963-03-05 | Sunbeam Corp | Hair clipper |
DE1129862B (en) * | 1961-06-19 | 1962-05-17 | Steidinger Geb | Shaving head for dry shaver |
US3266143A (en) * | 1963-08-20 | 1966-08-16 | Supreme Products Corp | Sealing means for a hair clipper |
US3343259A (en) * | 1965-06-28 | 1967-09-26 | Tyne Impex Est | Reciprocating cutter head with foam rubber mounting means |
US20040010922A1 (en) * | 2002-07-18 | 2004-01-22 | Wahl Clipper Corporation | Hair clipper and seal |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7954243B2 (en) * | 2004-06-21 | 2011-06-07 | Koninklijke Philips Electronics N.V. | Hair cutting apparatus |
WO2007125491A1 (en) * | 2006-05-01 | 2007-11-08 | Koninklijke Philips Electronics N.V. | Cutting device and hair-cutting apparatus |
JP2009535143A (en) * | 2006-05-01 | 2009-10-01 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Cutting device and hair cutting instrument |
US8132332B2 (en) | 2006-05-01 | 2012-03-13 | Koninklijke Philips Electronics N.V. | Cutting device |
WO2008015606A1 (en) * | 2006-07-31 | 2008-02-07 | Koninklijke Philips Electronics N.V. | Shaving apparatus comprising two cutting members which are allowed limited movement with respect to each other |
WO2009024890A1 (en) * | 2007-08-17 | 2009-02-26 | Koninklijke Philips Electronics N.V. | Shaving assembly comprising hair cutting elements and a mechanism for aligning the hair cutting elements |
EP3117972A1 (en) * | 2015-07-17 | 2017-01-18 | WAHL GmbH | Cutting set for a machine for cutting hair with hair transport element and machine for cutting hair with hair transport element |
RU2661130C2 (en) * | 2015-07-17 | 2018-07-11 | Валь Гмбх | Hair clipper knives block having hair removal element and hair clipper having hair removal element |
US10213931B2 (en) | 2015-07-17 | 2019-02-26 | Wahl Gmbh | Hair clipper blade set with transport element |
Also Published As
Publication number | Publication date |
---|---|
DE602005003368T2 (en) | 2008-09-11 |
KR20070020298A (en) | 2007-02-20 |
JP2008503300A (en) | 2008-02-07 |
US7954243B2 (en) | 2011-06-07 |
CN101010175A (en) | 2007-08-01 |
ATE378154T1 (en) | 2007-11-15 |
US20080016695A1 (en) | 2008-01-24 |
DE602005003368D1 (en) | 2007-12-27 |
CN100478146C (en) | 2009-04-15 |
JP5285907B2 (en) | 2013-09-11 |
KR101329274B1 (en) | 2013-11-14 |
EP1763422B1 (en) | 2007-11-14 |
EP1763422A1 (en) | 2007-03-21 |
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