EP0366139A2 - Rasoirs mécaniques - Google Patents

Rasoirs mécaniques Download PDF

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Publication number
EP0366139A2
EP0366139A2 EP89119937A EP89119937A EP0366139A2 EP 0366139 A2 EP0366139 A2 EP 0366139A2 EP 89119937 A EP89119937 A EP 89119937A EP 89119937 A EP89119937 A EP 89119937A EP 0366139 A2 EP0366139 A2 EP 0366139A2
Authority
EP
European Patent Office
Prior art keywords
projections
razor
pillars
walls
razor according
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
EP89119937A
Other languages
German (de)
English (en)
Other versions
EP0366139A3 (fr
EP0366139B1 (fr
Inventor
Alan Crook
Oliver David Oglesby
Brian Oldroyd
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.)
Gillette Co LLC
Original Assignee
Gillette Co LLC
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 Gillette Co LLC filed Critical Gillette Co LLC
Publication of EP0366139A2 publication Critical patent/EP0366139A2/fr
Publication of EP0366139A3 publication Critical patent/EP0366139A3/fr
Application granted granted Critical
Publication of EP0366139B1 publication Critical patent/EP0366139B1/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
    • 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
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4025—Cap elements

Definitions

  • This invention relates to razors having one or more blades and skin engaging surfaces arranged ahead of and/or behind the blade edge or edges.
  • the invention is applicable to razors of various forms, such as so-called 3-piece razors, one-­piece, or disposable razors and to razors in which the head is formed by a replaceable blade cartridge.
  • the skin engaging surfaces are formed as cap and guard members, the cap member being positioned behind the blade edges(s) and the guard member ahead of the edge(s).
  • the present invention resides broadly in providing the skin engaging cap and/or guard surfaces with configurations or textures designed to promote pleasant tactile sensations, in use of the razors, which tend to mask the sensations caused by contact of the blade edge(s) with the skin and more significantly with the facial hairs as they are severed.
  • the skin engaging surfaces of the razor head or cartridge are provided in one form or another with projections whose function is to provide frequent stimulation of the individual nerve zones at a low but adequate pressure level.
  • the pressures are controlled by making the projections flexible and by varying their density to achieve sufficient but not excessive stimuli.
  • the present invention provides a safety razor having one or more blades and a skin engaging surface (such as a cap member or a guard member) wherein the said surface is formed by a plurality of upstanding straight filaments present at a density of at least 100 per sq. mm, the filaments having a uniform length of 0.3 to 2.00 mm and diameters in the range of (1.5 to 3.2)x10 ⁇ 2 mm.
  • the invention also provides a safety razor having a skin engaging surface (such as a cap member or a guard member), wherein the said surface is composed of an array of projections comprising a plurality of rows extending generally parallel with the blade edge(s), the said projections being flexible under normal shaving forces in directions transverse to the blade edge(s), and wherein the said projections have a height in the range of 0.5 to 2.5 mm, a ratio of height to base thickness in the range of 2:1 to 5:1 and a spacing between adjacent longitudinal rows of 0.3 to 1.5mm.
  • a skin engaging surface such as a cap member or a guard member
  • FIG. 1 is a perspective view illustrating a cartridge body 1 of moulded construction (usually composed of a number of individual mouldings) in which are permanently secured a pair of blades 2, 3 whose cutting edges are disposed to act in tandem upon the skin.
  • the body is formed to provide a guard member 4 and a cap member 6 having skin engaging surfaces 7 and 8, respectively, to engage the skin ahead of and behind the blade edges.
  • one or both of the surfaces 7 and 8 is or are provided with a configured surface essentially comprising a plurality of spaced projections.
  • the surfaces are formed by spray flock coatings, e.g. of nylon, acetate or acrylic filaments having lengths of 0.3 to 2.00, and diameters of (1.5 to 3.2) x 10 ⁇ 2.
  • the filaments are applied at a density of 100 to 500 per sq. mm.
  • the filaments may be disposed perpendicular to the skin engaging surface in question, or may be inclined up to 60° from the perpendicular, either forwardly or rearwardly relative to the shaving direction, and they may be orientated differently in different regions of the skin engaging surfaces.
  • the surface is formed with a square grid pattern of mutually transverse walls 11, each tapering to a very thin edge.
  • Each square cell 12 thus formed may be some 0.3 to 1.0 across, with its walls 0.5 to 2.5 high and with an "aspect ratio" of height to thickness of base in the range of 2:1 to 5:1.
  • the structure may be completely open, as shown in Fig. 2 or, as illustrated in Fig. 3, it may have a continuous base 13.
  • the individual projections 11A are spaced apart in respective, mutually transverse rows to form rectangular cells open at their corners and the base 13 has apertures 14 at the intersection of each group of four adjacent projections to facilitate clearance of shaving debris.
  • the corresponding projections are formed as continuous longitudinal fins 11B.
  • the fins may be spaced apart by 0.3 to 1.0, with a height of 0.5 to 2.5 and an aspect ratio in the range 2:1 to 5:1.
  • Fig. 5 the fins are perpendicular to the base 13 but in Fig. 6 they are shown inclined at an angle of about 30° or more to the perpendicular, and forwardly relative to the shaving direction, indicated by the arrow 'S'.
  • the fins may alternatively be set to slope rearwardly relative to shaving direction at an angle of up to 30° beyond the perpendicular.
  • Fig. 7 illustrates a variant of Fig. 5 in which the fins 11C, instead of being continuous, are interrupted at intervals along their lengths. They may also be inclined, either forwardly or rearwardly, as described in relation to Fig. 6.
  • the skin engaging surfaces are formed by mouldings of synthetic elastomeric materials. They may be formed integrally with the basic cap or guard structures, or as separate mouldings which are then attached to underlying cap and guard structures. This latter approach lends itself particularly well, but not exclusively, to incorporation in razor cartridges of the conventional form currently marketed widely in the UK and elsewhere.
  • Fig. 8 illustrates another form of the invention in which the skin engaging surfaces are formed with individual pillars 14.
  • the pillars may have a height in the range of 0.5 to 2.5 with an aspect ratio of height to base diameter of 2:1 to 5:1 and with a spacing between adjacent pillars in each row and between adjacent rows of pillars of 0.6 to 1.5.
  • the base 13 and pillars 14 may be integrally moulded in one material which is relatively flexible, or the pillars might be made of a more rigid material set in an elastomeric base 13 which permits flexure of the individual pillars about their lower ends.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Cosmetics (AREA)
  • Toilet Supplies (AREA)
EP19890119937 1988-10-28 1989-10-26 Rasoirs mécaniques Expired - Lifetime EP0366139B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8825268 1988-10-28
GB888825268A GB8825268D0 (en) 1988-10-28 1988-10-28 Safety razors

Publications (3)

Publication Number Publication Date
EP0366139A2 true EP0366139A2 (fr) 1990-05-02
EP0366139A3 EP0366139A3 (fr) 1990-07-25
EP0366139B1 EP0366139B1 (fr) 1996-09-18

Family

ID=10645939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890119937 Expired - Lifetime EP0366139B1 (fr) 1988-10-28 1989-10-26 Rasoirs mécaniques

Country Status (10)

Country Link
EP (1) EP0366139B1 (fr)
JP (1) JP2809779B2 (fr)
BR (1) BR8907724A (fr)
CA (1) CA2000772C (fr)
DE (1) DE68927220T2 (fr)
ES (1) ES2091759T3 (fr)
GB (1) GB8825268D0 (fr)
GR (1) GR3021079T3 (fr)
SG (1) SG48421A1 (fr)
WO (1) WO1990005047A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552310A1 (fr) * 1990-10-11 1993-07-28 Gillette Co Rasoirs de securite.
EP0640026A1 (fr) * 1992-05-13 1995-03-01 The Gillette Company Structure de lame de rasoir
WO1996001171A1 (fr) * 1994-07-01 1996-01-18 The Gillette Company Element entrant en contact avec la peau pour ensemble lame de rasoir
WO1996024469A1 (fr) * 1995-02-06 1996-08-15 The Gillette Company Rasoirs
WO1996035558A1 (fr) * 1995-05-08 1996-11-14 Warner-Lambert Company Dispositif pour se raser
US5794343A (en) * 1997-05-12 1998-08-18 The Gillette Company Razor blade assembly
US5903979A (en) * 1994-07-13 1999-05-18 The Gillette Company Safety razors
US5953819A (en) * 1995-02-06 1999-09-21 The Gillette Company Razors
USRE36816E (en) * 1992-05-13 2000-08-15 The Gillette Company Guard for razor blade assembly
WO2011106386A1 (fr) * 2010-02-25 2011-09-01 The Gillette Company Cartouche de rasoir
USD965887S1 (en) 2020-05-20 2022-10-04 The Gillette Company Llc Shaving razor guard bar

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416973A (en) * 1993-09-30 1995-05-23 The Gillette Company Razors
US6944952B1 (en) 1994-07-01 2005-09-20 The Gillette Company Shaving system
US6594904B1 (en) 1994-07-01 2003-07-22 The Gillette Company Shaving system
US6298558B1 (en) 1994-10-31 2001-10-09 The Gillette Company Skin engaging member
US6014918A (en) * 1998-10-28 2000-01-18 Warner & Lambert Company Transcutaneous electric nerve stimulator razor system
US6167625B1 (en) 1999-05-18 2001-01-02 Warner-Lambert Company Shaving implement
CN203738832U (zh) * 2014-03-05 2014-07-30 黄志坚 剃须刀刀头

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138865A (en) * 1960-08-13 1964-06-30 Meyer Eugen Safety razor having skin-stretching and guiding means
US3909939A (en) * 1973-08-23 1975-10-07 Colombo Winifred M Safety razor having a row of short convergently slanted counter-stretching tension grooves extending along the guard bar
FR2323502A1 (fr) * 1975-09-12 1977-04-08 Wilkinson Sword Ltd Perfectionnements relatifs aux rasoirs de surete
EP0254491A1 (fr) * 1986-07-25 1988-01-27 Warner-Lambert Company Barre de garde pour tête de rasoir d'un système de rasage mécanique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2068085A (en) * 1935-02-27 1937-01-19 Nathan M Stanley Safety razor
US4189832A (en) * 1978-06-19 1980-02-26 The Gillette Company Shaving implement
NL8000884A (nl) * 1980-02-13 1981-09-16 Philips Nv Scheerapparaat.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138865A (en) * 1960-08-13 1964-06-30 Meyer Eugen Safety razor having skin-stretching and guiding means
US3909939A (en) * 1973-08-23 1975-10-07 Colombo Winifred M Safety razor having a row of short convergently slanted counter-stretching tension grooves extending along the guard bar
FR2323502A1 (fr) * 1975-09-12 1977-04-08 Wilkinson Sword Ltd Perfectionnements relatifs aux rasoirs de surete
EP0254491A1 (fr) * 1986-07-25 1988-01-27 Warner-Lambert Company Barre de garde pour tête de rasoir d'un système de rasage mécanique

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552310A4 (en) * 1990-10-11 1993-10-13 The Gillette Company Safety razors
EP0552310A1 (fr) * 1990-10-11 1993-07-28 Gillette Co Rasoirs de securite.
EP0640026A1 (fr) * 1992-05-13 1995-03-01 The Gillette Company Structure de lame de rasoir
EP0640026A4 (fr) * 1992-05-13 1995-06-21 Gillette Co Structure de lame de rasoir.
USRE36816E (en) * 1992-05-13 2000-08-15 The Gillette Company Guard for razor blade assembly
WO1996001171A1 (fr) * 1994-07-01 1996-01-18 The Gillette Company Element entrant en contact avec la peau pour ensemble lame de rasoir
US5903979A (en) * 1994-07-13 1999-05-18 The Gillette Company Safety razors
WO1996024469A1 (fr) * 1995-02-06 1996-08-15 The Gillette Company Rasoirs
AU694624B2 (en) * 1995-02-06 1998-07-23 Gillette Company, The Razors
US5953819A (en) * 1995-02-06 1999-09-21 The Gillette Company Razors
WO1996035558A1 (fr) * 1995-05-08 1996-11-14 Warner-Lambert Company Dispositif pour se raser
US5689883A (en) * 1995-05-08 1997-11-25 Warner-Lambert Company Shaving implement
US5794343A (en) * 1997-05-12 1998-08-18 The Gillette Company Razor blade assembly
WO2011106386A1 (fr) * 2010-02-25 2011-09-01 The Gillette Company Cartouche de rasoir
USD965887S1 (en) 2020-05-20 2022-10-04 The Gillette Company Llc Shaving razor guard bar

Also Published As

Publication number Publication date
GR3021079T3 (en) 1996-12-31
JPH04502413A (ja) 1992-05-07
CA2000772C (fr) 1997-03-04
DE68927220D1 (de) 1996-10-24
DE68927220T2 (de) 1997-04-03
WO1990005047A1 (fr) 1990-05-17
JP2809779B2 (ja) 1998-10-15
GB8825268D0 (en) 1988-11-30
EP0366139A3 (fr) 1990-07-25
BR8907724A (pt) 1991-07-30
EP0366139B1 (fr) 1996-09-18
ES2091759T3 (es) 1996-11-16
CA2000772A1 (fr) 1990-04-28
SG48421A1 (en) 1998-04-17

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