WO2004069496A1 - Razor head having skin controlling means - Google Patents

Razor head having skin controlling means Download PDF

Info

Publication number
WO2004069496A1
WO2004069496A1 PCT/US2004/003032 US2004003032W WO2004069496A1 WO 2004069496 A1 WO2004069496 A1 WO 2004069496A1 US 2004003032 W US2004003032 W US 2004003032W WO 2004069496 A1 WO2004069496 A1 WO 2004069496A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
razor head
cutting edge
set forth
end portions
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.)
Ceased
Application number
PCT/US2004/003032
Other languages
English (en)
French (fr)
Inventor
Paul D. Richard
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.)
Edgewell Personal Care Brands LLC
Original Assignee
Eveready Battery Co Inc
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 Eveready Battery Co Inc filed Critical Eveready Battery Co Inc
Priority to JP2006503280A priority Critical patent/JP2006516464A/ja
Priority to DE602004009289T priority patent/DE602004009289T2/de
Priority to AU2004209545A priority patent/AU2004209545B2/en
Priority to EP04707775A priority patent/EP1590136B1/en
Publication of WO2004069496A1 publication Critical patent/WO2004069496A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4018—Guard elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit

Definitions

  • This invention relates in general to razor heads and deals more particularly with improvements in razor heads which include means for controlling skin flow to limit the degree of blade edge exposure and thereby reduce the probability of nicks and cuts.
  • Current shaving systems for providing such control, and particularly those of the multi-blade type generally employ a wire wrapped cartridge for limiting the degree of closeness of a shave.
  • Such systems add parts to a razor head or blade cartridge and generally require additional steps in the manufacturing process to attain the desired skin control feature, all of which add substantially to the cost of producing a razor.
  • a razor head has a blade seat member which includes a seat body, a seat blade mounted in fixed position on the blade seat member and having an unobstructed cutting edge spaced from the seat body, and a guard assembly for controlling skin flow and limiting the degree of blade cutting edge exposure to skin being shaved and which includes a plurality of discreet spaced apart guard elements carried by and projecting in cantilever position from the seat body below and in spaced relation to the seat blade.
  • the guard elements have free end portions disposed at spaced intervals along and forward of the blade cutting edge which is unobstructed along its entire cutting edge. The free end portions are configured for smooth engagement with the skin.
  • Fig. 1 is a fragmentary perspective view of a detachable blade cartridge embodying the present invention.
  • Fig. 2 is a fragmentary perspective view of the blades, blade seat and spacer of the blade cartridge shown in Fig. 1.
  • Fig. 3 is a fragmentary sectional view taken along the line 3-3 of Fig. 1.
  • Fig 4 is a fragmentary top plan view of another blade cartridge having three blades and embodying the invention.
  • Fig. 5 is a somewhat enlarged fragmentary perspective view of the blade cartridge shown in Fig. 4.
  • Fig. 6 is a fragmentary perspective view of still another blade cartridge embodying the invention having a single blade and a blade seat which carries another type of guard element.
  • Fig. 7 is a fragmentary plan view of the guard element shown in Fig. 6.
  • Fig. 8 is a sectional view taken along the line 8-8 of Fig. 7.
  • Fig. 9 is similar to Fig. 3, but shows yet another blade cartridge embodying the invention and having four blades.
  • Fig. 10 is a fragmentary top plan view of still another blade cartridge embodying the invention.
  • Fig. 11 is a fragmentary perspective view of yet another detachable blade cartridge embodying the present invention.
  • the razor head of the present invention may take various forms and may, for example, comprise the head portion of a unitary disposable razor of the type having a single blade.
  • a detachable multiple blade cartridge indicated generally by the reference numeral 10.
  • the illustrated blade cartridge 10 essentially comprises a pair of blades which includes a first or seat blade 12, which has a generally rectilinear forwardly facing cutting edge 14, and a second blade 16, which includes a forwardly facing cutting edge indicated at 18.
  • the seat blade 12 is mounted in fixed position on a blade support member or blade seat 20.
  • the second blade 16 is supported on and maintained in spaced relation to the seat blade 12 by another blade support or spacing member 22 sandwiched between the blades.
  • the cartridge 10 further includes a blade cap 24 which overlies the second or upper blade 16, substantially as shown in Fig. 1 and 3.
  • a guard assembly indicated generally at 26 and which include a plurality of discreet spaced apart guard elements 28, 28 is carried by the blade seat 20.
  • a guard assembly 26' which includes a plurality of guard elements 28', 28' is carried by the spacing member or spacer 22.
  • the guard elements 28', 28' are or may be substantially identical to the guard elements 28, 28 carried by the blade seat 12.
  • the blade seat 20 is preferably molded from a durable plastic material and comprises a unitary structure which includes a seat body 30 and the guard element 28, 28 which are integrally formed thereon.
  • the seat body 30 has a substantially planar upwardly facing seating surface 31 upon which the seat blade 12 is mounted with its longitudinally extending cutting edge 14 spaced forwardly of the seat body 30, as best shown in Fig. 3.
  • the guard elements 28, 28 project forwardly from the seat body 30 in cantilever position and parallel spaced apart relation to each other below and in spaced relation to the seat blade 12.
  • the guard elements 28, 28 have enlarged free end portions 32, 32 disposed at spaced intervals along and forward of the cutting edge 14 and are configured or shaped for smooth engagement with the skin to be shaved.
  • the enlarged free end portions 32, 32 are parti- cylindrical, that is substantially cylindrical except in regions of connection to the cantilever beams which support them on the seat body.
  • the parti-cylindrical free end portions 32, 32 are arranged at longitudinally spaced apart intervals along the length of the blade 12 and in coaxial alignment with each other and axially parallel alignment with the blade cutting edge 14 as best shown in Figs. 1 and 2.
  • the construction of the spacer 22 is similar to that of the blade seat 20.
  • the spacer 22 is preferably molded from a durable plastic material and has a generally rectangular body portion indicated at 34.
  • the guard elements 28', 28' are integrally formed on the spacer 22 and project forwardly in cantilever positions from the body portion 34.
  • Each guard element 28' has an enlarged free end portion 32' which is preferably parti-cylindrical, as previously described with reference to the corresponding guard elements 28, 28 on the blade seat.
  • the enlarged parti-cylindrical end portions 32', 32' are coaxially aligned and arranged in axially parallel alignment with the cutting edge 18 on the second blade 16. Referring to Fig.
  • the guard elements associated with the blade cutting edges and which control skin flow and limit the degree of blade cutting edge exposure to the skin may be arranged in various ways relative to each other and to the cutting edges of the blades. As shown in Fig. 1 and 2, the blade guard elements 28, 28 and 28', 28' are arranged in a staggered pattern relative to each other along the cutting edges. More specifically, the guard elements 28, 28 and 28', 28' are arranged in alternate series at opposite sides of an imaginary median line disposed between and extending in parallel relation to the blade edges 14 and 18. However, other guard element arrangements are possible and are contemplated within the scope of the present invention.
  • FIG. 10a another blade cartridge embodying the invention is illustrated and indicated generally by the reference numeral 10a.
  • the blade cartridge 10a is similar in most respects to the previously described blade cartridge 10 but has three blades which include a seat blade 12a and two other blades 16a,16a.
  • the blade cartridge 10a further differs from the blade cartridge 10 in the construction and arrangement of its guard elements. More specifically, the guard elements which comprise the blade cartridge 10a have parti-spherical free end portions indicated at 32a, 32a, 32a', 32a', and 32a", 32a".
  • FIGs. 6-8 there is shown still another form of razor head or blade cartridge 10b which has a single blade or seat blade 12b supported on a blade seat which carries a plurality of smoothly configured guard elements 32b (one shown).
  • Each guard element 32b has a generally wedge shaped configuration and is characterized by sidewalls which converge toward a tip, as shown in Fig. 6 wherein the sidewalls of the enlarged free end portion 32b converge toward the cutting edge 14b of a seat blade 12b.
  • FIG. 9 there is shown yet another embodiment of the invention indicated generally by the reference numeral 10c.
  • the razor head 10c is substantially identical in most respects to the razor head 10 shown in Figs. 1-3 of the drawings, but differs from the razor head 10 in that it has four blades. Parts of the razor head 10c which are substantially identical to parts of the razor head 10 bear the same reference numerals as those of the razor head 10. Consequently, these identical parts will not be hereinafter further described.
  • FIG. 11 Another razor head or detachable cartridge embodying the present invention is shown in Fig. 11 and indicated generally by the reference numeral lOe.
  • the cartridge lOe Like the previously described razor head or blade cartridge 10, shown in Figs. 1-3, the cartridge lOe includes a first or seat blade 12 carried by a blade seat 20 and a second blade 16 supported on a spacing member 22 sandwiched between the first and second blades. As in the disposable cartridge 10, a blade cap 24 overlies the upper blade 16 and forms the end walls of the blade cartridge.
  • the blade cartridge lOe differs from the previously described razor head or cartridge 10 in the construction and the arrangement of its guard elements. More specifically, the blade seat 20 carries an in-line array of guard elements having free end portions which differ in shape from each other from one end of the blade cartridge to the other end of the blade cartridge.
  • the fragmentary view of the blade cartridge lOe shown in Fig. 11 shows guard elements having free end portions indicated at 42, 44, 46, 48 and 50, which are carried by blade seat 20.
  • the free end portion 42 is shaped generally like a smooth segment of a disk, whereas the next guard element free end portion 44 has a spherical configuration.
  • the element 46 has. a generally teardrop form.
  • the next successive element in the series includes a free end portion having a knob shape and indicated at 48.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Golf Clubs (AREA)
  • Surgical Instruments (AREA)
PCT/US2004/003032 2003-02-04 2004-02-03 Razor head having skin controlling means Ceased WO2004069496A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2006503280A JP2006516464A (ja) 2003-02-04 2004-02-03 スキンコントロール手段を持つレーザーヘッド
DE602004009289T DE602004009289T2 (de) 2003-02-04 2004-02-03 Rasierkopf mit hautkontrollmittel
AU2004209545A AU2004209545B2 (en) 2003-02-04 2004-02-03 Razor head having skin controlling means
EP04707775A EP1590136B1 (en) 2003-02-04 2004-02-03 Razor head having skin controlling means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44478003P 2003-02-04 2003-02-04
US60/444,780 2003-02-04

Publications (1)

Publication Number Publication Date
WO2004069496A1 true WO2004069496A1 (en) 2004-08-19

Family

ID=32850930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/003032 Ceased WO2004069496A1 (en) 2003-02-04 2004-02-03 Razor head having skin controlling means

Country Status (7)

Country Link
US (1) US7111401B2 (enExample)
EP (1) EP1590136B1 (enExample)
JP (1) JP2006516464A (enExample)
AT (1) ATE374678T1 (enExample)
AU (1) AU2004209545B2 (enExample)
DE (1) DE602004009289T2 (enExample)
WO (1) WO2004069496A1 (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010039749A1 (en) * 2008-10-02 2010-04-08 The Gillette Company Shaving razors and cartridges
WO2011057170A1 (en) * 2009-11-09 2011-05-12 The Gillette Company Cantilever comb for razor cartridge guard
US8726518B2 (en) 2010-03-16 2014-05-20 The Gillette Company Shaving razors and cartridges
US9221185B2 (en) 2008-09-10 2015-12-29 The Gillette Company Shaving razors and cartridges
US9492933B2 (en) 2011-09-30 2016-11-15 The Gillette Company Guard for a shaving razor
CN113966269A (zh) * 2019-07-31 2022-01-21 比克维奥莱克斯公司 剃刀刀片架

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JP4977374B2 (ja) * 2006-02-14 2012-07-18 株式会社貝印刃物開発センター 剃刀
JP4950507B2 (ja) * 2006-02-14 2012-06-13 株式会社貝印刃物開発センター 剃刀
JP4950506B2 (ja) * 2006-02-14 2012-06-13 株式会社貝印刃物開発センター 剃刀
KR100749925B1 (ko) * 2006-06-29 2007-08-16 주식회사 도루코 면도기
CN101827690A (zh) * 2007-10-12 2010-09-08 美国安全剃刀公司 具有模块刀片对的剃须刀
EP2419247B1 (en) * 2009-04-15 2020-05-27 BIC-Violex S.A. Method of manufacturing a razor head component, support obtained thereby and razor cartridge and razor comprising said support
US8782903B2 (en) * 2009-05-29 2014-07-22 The Gillette Company Shaving razor comb guard for a trimming blade
IN2012DN05165A (enExample) 2009-12-18 2015-10-23 Gillette Co
US9144914B2 (en) 2011-06-30 2015-09-29 Rolling Razor, Inc. Razor cartridge with reduced part count and expanded range of motion
US9457486B2 (en) * 2013-03-13 2016-10-04 Rolling Razor, Inc Shaving cartridge with individual blade guards
KR102712230B1 (ko) * 2015-12-17 2024-09-30 빅 비올렉스 싱글 멤버 에스.아. 면도용 헤드
CN109414828B (zh) 2016-03-18 2020-12-18 个人护理市场及调研公司 剃刀盒
DE102016110239A1 (de) 2016-06-02 2017-12-07 Wladimir Mor Scherkopf für einen nassrasierer
USD877983S1 (en) 2016-09-09 2020-03-10 The Gillette Company Llc Shaving razor cartridge
EP3292965B1 (en) 2016-09-09 2021-05-26 The Gillette Company LLC Shaving razor cartridge and method of assembling
EP3292964B1 (en) * 2016-09-09 2020-04-15 The Gillette Company LLC Shaving razor cartridge
US9993931B1 (en) 2016-11-23 2018-06-12 Personal Care Marketing And Research, Inc. Razor docking and pivot
US11117278B2 (en) 2017-06-06 2021-09-14 The Gillette Company Llc Shaving razor cartridge
US11541560B2 (en) 2018-03-01 2023-01-03 Rolling Razor, Inc. Precision razor with low cost assembly
USD884970S1 (en) 2019-02-27 2020-05-19 PCMR International Ltd. Razor cartridge guard
USD884969S1 (en) 2019-02-27 2020-05-19 Pcmr International Ltd Combined razor cartridge guard and docking
USD884971S1 (en) 2019-02-27 2020-05-19 Pcmr International Ltd Razor cartridge
USD921984S1 (en) 2019-03-19 2021-06-08 The Gillette Company Llc Shaving razor cartridge
EP3865260B1 (en) 2020-02-12 2024-01-03 Edgewell Personal Care Brands, LLC Razor cartridge
US11000960B1 (en) 2020-11-16 2021-05-11 Personal Care Marketing And Research, Inc. Razor exposure
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EP1590136B1 (en) 2007-10-03
US20040168322A1 (en) 2004-09-02
AU2004209545B2 (en) 2007-03-29
JP2006516464A (ja) 2006-07-06
DE602004009289D1 (de) 2007-11-15
AU2004209545A2 (en) 2004-08-19
DE602004009289T2 (de) 2008-07-10
AU2004209545A1 (en) 2004-08-19
US7111401B2 (en) 2006-09-26
EP1590136A1 (en) 2005-11-02

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