EP0045879A1 - Cartouche de lames pour rasoir de sécurité - Google Patents

Cartouche de lames pour rasoir de sécurité Download PDF

Info

Publication number
EP0045879A1
EP0045879A1 EP19810105758 EP81105758A EP0045879A1 EP 0045879 A1 EP0045879 A1 EP 0045879A1 EP 19810105758 EP19810105758 EP 19810105758 EP 81105758 A EP81105758 A EP 81105758A EP 0045879 A1 EP0045879 A1 EP 0045879A1
Authority
EP
European Patent Office
Prior art keywords
blade
base
arms
guard
platform
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
EP19810105758
Other languages
German (de)
English (en)
Other versions
EP0045879B1 (fr
Inventor
Robert Anthony Trotta
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
Priority claimed from US06/176,138 external-priority patent/US4324041A/en
Priority claimed from US06/229,623 external-priority patent/US4337575A/en
Priority claimed from US06/253,071 external-priority patent/US4403412A/en
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Publication of EP0045879A1 publication Critical patent/EP0045879A1/fr
Application granted granted Critical
Publication of EP0045879B1 publication Critical patent/EP0045879B1/fr
Expired 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
    • B26B21/54—Razor-blades
    • 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
    • B26B21/227—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 with blades being resiliently mounted in the changeable unit

Definitions

  • the invention relates to wet shaving implements, and is directed more particularly to a blade assembly in which blade means are permanently secured in a housing having cap and guard portions.
  • a razor blade assembly incorporating a platform, said platform having a longitudinal rear edge defining a base, a longitudinal front edge extending substantially parallel thereto and ends interconnecting said base and front edge, a cap, at least one blade contained between said platform and cap, and blade supporting resilient elements, characterized in that a guard is associated with said platform front edge and in that the blade s u p-porting elements are resilient arms which extend from the base toward the guard.
  • a razor blade assembly incorporating a platform, said platform having a longitudinal rear edge defining a base, a longitudinal front edge extending substantially parallel thereto and ends interconnecting said base and front edge, a cap, blade elements contained between said platform and cap, resilient elements supporting the blade elements and a guard associated with said platform front edge, characterized in that a first blade comprises a first cutting edge strand and a first base strand substantially parallel to and spaced from said first cutting edge strand, said first cutting edge and first base strands being connected to each other by interconnecting strands, said first blade being supported by a set of arms extending from said base and being adapted to flex about the junctures thereof with said base to facilitate arcuate movement of said first cutting edge strand about said base, and a second blade comprises a second cutting edge strand and a second base strand parallel to and spaced from said second cutting edge strand, said second cutting edge and second base strands being connected to each other by interconnecting strand
  • the illustrative razor blade assembly includes a platform member 1 having a base portion 2.
  • the platform member 1 is joined to a cap portion 4.
  • First arm means 6 extend from the base portion 2 and are joined to a guard portion 8 extending generally parallel to the base portion.
  • the first arm means 6 included a first set of arms 9, including a first arm 10 proximate a first end 12 of the platform member 1 and a second arm 14 proximate a second end 16 of the platform member, the first arm 10 joining the guard portion 8 proximate a first end 18 of the guard portion and a second arm. 14 joining the guard port proximate a second end 20 of the guard portion.
  • the first set of arms 9 preferably includes additional arms 21 disposed between the first and second arms 10, 14.
  • the blade assembly further includes a second arm means 22 disposed in- of the ends of the platform member 1 and extending from the base portion generally toward, and terminating short of, the guard portion.
  • the second arm means 22 include second and third ets of arms 24, 26.
  • a first blade means 28 is disposed on the second set f arms 24 and a second blade means 30 is disposed on the third set of arms 26.
  • the base portion 2, arm means 6, 22, and guard portion 8 are f molded material and are molded as a single, unitary and integral member.
  • he arm means function as leaf springs, permitting movement of the guard ortion and the blade means relative to the base portion and the cap portion,, nd to each other, during a shaving operation.
  • the first blade means 28 is provided with apertures through which extend the third set of arms 26, the ends of which support -he second blade means 30.
  • the cap portion 4 includes downwardly-extending prolrusions 48 which pass through holes 50 in the second blade means 30 and overlie the upper surface of the first blade means 28.
  • the bridge members are molded integrally with the remainde of the platform member 1 and the protrusions 48 are molded portions of the cap 4.
  • the platform and cap portions are molded with means for interconnection.
  • the cap 4 is provided with end-portions 52 interconnected by a back portion 54. Rivet members 56 depe from the end portions 52 and the back portion 54.
  • the platform portion provided with holes 58 on its end portions 12, 16 and base portion 2 adapted to receive the rivet members 56.
  • the second blade means 30 is placed on underside of the cap portion 4, inverted for the assembly operation, with protrusions 48 extending through the holes 50.
  • the first blade means 28 is then placed over the second blade means 30.
  • the platform portion 1 is onto the cap portion 4 and over the first blade means 28, the apertures 32 46 and openings 44 permitting the third set of arms 26 and the protrusions 42 to extend through the first blade means.
  • the rivet members 56 are secu, in the platform holes 58 by heading over, bringing the second blade means to rest on the third set of arms 26.
  • the cap portion 4 is formed with a shoulder 60 which bears against the first biade means 28, as seen in Fig.
  • the guard portion 8 has on either end thereof outwardly extending 62 which, in assembly, are received by recesses 64 in the cap end portions 52.
  • the guard portion 8 is further provided with stop portions 63 on the underside of the guard portion, the stop portions 63 being in alignment wi stop portions 65 upstanding from the frame member 34. Two of the stop portions 65 may comprise portions of the bridge members 36.
  • the first blade means 28 rests upon the second set of anns 24 proximate the cutting edge of the first blade means, the rearward edge thereof being loosely held in a pocket 66 (Fig. 8) formed by the cap and platform portions, and particularly the shoulder portion 60 of the cap.
  • the pocket 66 provides sufficient freedom to permit the first blade means to pivot about its rearward edge.
  • the upstanding protrusions 42 prevent the first blade from sliding forwardly or backwardly.
  • the second blade means rests upon the third set of arms 26 ; its rearward edge being disposed in a pocket 68 formed by the cap portion and the protrusions 42.
  • the pocket 68 provides sufficient freedom to permit the second blade to pivot about its rearward edge.
  • the second blade means is prevented from sliding forwardly or backwardly by the protrusions 48.
  • the guard portion 8 is freely movable during a shaving operation by virtue of the spring leaf-like qualities of the arms 10,14.
  • the stop portions 65 of the frame portion 34 and upper surfaces 67 of the recesses 64 limit the movement of the guard portion, the guard stop portions 63 abutting the frame stop portions 65 at the-lower extent of the permissible movement of the guard portion, and the detents 62 abutting the upper surfaces 67 of the recesses 64 at the upper extent of the permissible movement of the guard portion.
  • the blade means 28, 30 are each freely and independently movable during a shaving operation by virtue of the spring leaf-like qualities of the arms 24, 26.
  • the cutting edge of the first blade means 28 can be depressed, or moved downwardly and'pivotally about its rear edge, until the first blade means strikes the first protrusion 38.
  • the second blade means 30 can be depressed, or moved downwardly and pivotally about its rear edge until the second blade means strikes the seco protrusion 40.
  • the guard and blade members may move dynamically in response to forces and pressures acting on the blade assembly during shaving, the guard and blade means being movable in a substantially arcuate path about a rear portion of the blade assembly.
  • the first blade means 28' is provided with enlarged apertures 32', greatly reducing the surface area of the first blade means.
  • the first blade means essentially comprises a first cutting edge strand portion 100 of blade material, a first parallel base strand portion 102 of blade material, interconnecting. end strand portions 1 and interconnecting intermediate strand portions 106.
  • the second blade means 30' is provided with enlarged holes 50 1 , substantial reducing the surface area of the second blade means.
  • the second blade means essentially comprises a second cutting strand portion 110 of blade material, a second parallel base strand portion 112 of blade material, interconnecting end strand portions 114 and interconnecting intermediate strand portions 116.
  • first and second protrusions 38', 40' are provided with flat upper surfaces 118', 120.
  • second and third sets of arms 24', 26' are provided with fla upper surfaces 122, 124.
  • the surfaces 122 engage and support an underside of the first cutting edge strand portion 100, of the first blade means 28'.
  • the surfaces 124 engage and support an underside of the second cutting edge strand portion 110 of the second blade means 30'.
  • the surface 118 of the first protrusion 38' acts as a stop means for the first blade means 28 t

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
EP19810105758 1980-08-07 1981-07-21 Cartouche de lames pour rasoir de sécurité Expired EP0045879B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/176,138 US4324041A (en) 1980-08-07 1980-08-07 Razor blade assembly
US176138 1980-08-07
US229623 1981-01-29
US06/229,623 US4337575A (en) 1980-08-07 1981-01-29 Razor blade assembly
US253071 1981-04-10
US06/253,071 US4403412A (en) 1980-08-07 1981-04-10 Razor blade assembly

Publications (2)

Publication Number Publication Date
EP0045879A1 true EP0045879A1 (fr) 1982-02-17
EP0045879B1 EP0045879B1 (fr) 1984-11-07

Family

ID=27390640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810105758 Expired EP0045879B1 (fr) 1980-08-07 1981-07-21 Cartouche de lames pour rasoir de sécurité

Country Status (4)

Country Link
EP (1) EP0045879B1 (fr)
BR (1) BR8105082A (fr)
DE (1) DE3167072D1 (fr)
GR (1) GR74632B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259065A1 (fr) * 1986-09-02 1988-03-09 Warner-Lambert Company Ensemble de lames de rasoir
EP0416233A1 (fr) * 1989-09-02 1991-03-13 Wilkinson Sword Gesellschaft mit beschränkter Haftung Tête de rasage de rasoir mécanique
EP0486678A1 (fr) * 1990-06-11 1992-05-27 Gillette Co Rasoirs.
WO1993001917A1 (fr) * 1991-07-18 1993-02-04 Warner-Lambert Company Tete de rasoir a geometrie variable
WO1995029798A1 (fr) * 1994-04-28 1995-11-09 Warner-Lambert Company Tete de rasoir dynamique et flexible
WO1996032233A1 (fr) * 1995-04-10 1996-10-17 Warner-Lambert Company Systeme de rasage a lames suspendues
EP0858868A1 (fr) * 1997-01-17 1998-08-19 Warner-Lambert Company Tête de rasoir avec unité de lames mobile
WO2011062881A1 (fr) * 2009-11-18 2011-05-26 The Gillette Company Lames pour rasoirs
US20170001323A1 (en) * 2013-11-27 2017-01-05 Kai R&D Center Co., Ltd. Razor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327967A (en) * 1941-06-03 1943-08-24 Peters Peter Nicholas Safety razor
GB1274771A (en) * 1969-03-26 1972-05-17 Gillette Industries Ltd Improvements in safety razors and blades therefor
US3685150A (en) * 1970-07-27 1972-08-22 Philip Morris Inc Double edge safety razor embodying flexible blade pressure control
GB1566505A (en) * 1977-02-02 1980-04-30 Gillette Co Safety razor
GB2056354A (en) * 1979-05-25 1981-03-18 Gillette Co Safety razor heads

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327967A (en) * 1941-06-03 1943-08-24 Peters Peter Nicholas Safety razor
GB1274771A (en) * 1969-03-26 1972-05-17 Gillette Industries Ltd Improvements in safety razors and blades therefor
US3685150A (en) * 1970-07-27 1972-08-22 Philip Morris Inc Double edge safety razor embodying flexible blade pressure control
GB1566505A (en) * 1977-02-02 1980-04-30 Gillette Co Safety razor
GB2056354A (en) * 1979-05-25 1981-03-18 Gillette Co Safety razor heads

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259065A1 (fr) * 1986-09-02 1988-03-09 Warner-Lambert Company Ensemble de lames de rasoir
EP0416233A1 (fr) * 1989-09-02 1991-03-13 Wilkinson Sword Gesellschaft mit beschränkter Haftung Tête de rasage de rasoir mécanique
US5074042A (en) * 1989-09-02 1991-12-24 Wilkinson Sword Gesellschaft Mit Beschrankter Haftung Shaver head with swivelling blade block
EP0486678A1 (fr) * 1990-06-11 1992-05-27 Gillette Co Rasoirs.
EP0486678A4 (en) * 1990-06-11 1992-11-11 The Gillette Company Razor
WO1993001917A1 (fr) * 1991-07-18 1993-02-04 Warner-Lambert Company Tete de rasoir a geometrie variable
US5313706A (en) * 1991-07-18 1994-05-24 Warner-Lambert Company Razor head with variable shaving geometry
JPH06509000A (ja) * 1991-07-18 1994-10-13 ワーナー−ランバート・カンパニー 可変ひげそり形状のかみそりヘッド
WO1995029798A1 (fr) * 1994-04-28 1995-11-09 Warner-Lambert Company Tete de rasoir dynamique et flexible
US5557851A (en) * 1994-04-28 1996-09-24 Warner-Lambert Company Dynamic flexible razor head
AU683364B2 (en) * 1994-04-28 1997-11-06 Warner-Lambert Company Dynamic flexible razor head
WO1996032233A1 (fr) * 1995-04-10 1996-10-17 Warner-Lambert Company Systeme de rasage a lames suspendues
US5666729A (en) * 1995-04-10 1997-09-16 Warner-Lambert Company Suspended blade shaving system
EP0858868A1 (fr) * 1997-01-17 1998-08-19 Warner-Lambert Company Tête de rasoir avec unité de lames mobile
US7200937B2 (en) 1997-01-17 2007-04-10 Eveready Battery Company, Inc. Razor head with moveable blade package
WO2011062881A1 (fr) * 2009-11-18 2011-05-26 The Gillette Company Lames pour rasoirs
US20170001323A1 (en) * 2013-11-27 2017-01-05 Kai R&D Center Co., Ltd. Razor
US10183408B2 (en) * 2013-11-27 2019-01-22 Kai R&D Center Co., Ltd. Razor

Also Published As

Publication number Publication date
BR8105082A (pt) 1982-04-20
DE3167072D1 (en) 1984-12-13
EP0045879B1 (fr) 1984-11-07
GR74632B (fr) 1984-06-29

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