EP0885697B1 - Rasoir avec tête de support de rasoir pivotante et rotative - Google Patents

Rasoir avec tête de support de rasoir pivotante et rotative Download PDF

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Publication number
EP0885697B1
EP0885697B1 EP19980304199 EP98304199A EP0885697B1 EP 0885697 B1 EP0885697 B1 EP 0885697B1 EP 19980304199 EP19980304199 EP 19980304199 EP 98304199 A EP98304199 A EP 98304199A EP 0885697 B1 EP0885697 B1 EP 0885697B1
Authority
EP
European Patent Office
Prior art keywords
razor
axis
engagement arms
engagement
razor head
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.)
Expired - Lifetime
Application number
EP19980304199
Other languages
German (de)
English (en)
Other versions
EP0885697A1 (fr
Inventor
David C. Coffin
Andrew J. Pennella
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.)
Warner Lambert Co LLC
Original Assignee
Warner Lambert 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 Warner Lambert Co LLC filed Critical Warner Lambert Co LLC
Publication of EP0885697A1 publication Critical patent/EP0885697A1/fr
Application granted granted Critical
Publication of EP0885697B1 publication Critical patent/EP0885697B1/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
    • B26B21/08—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
    • B26B21/225—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 the changeable unit being resiliently mounted on the handle

Definitions

  • the present invention is directed to a razor which supports a razor head and, more particularly, to a razor which permits a razor head to swivel and pivot relative to a shaving stroke, of the type disclosed in GB-A-2, 116, 470, upon which the preamble of claim 1 is based.
  • Shaving systems have been proposed which provide a razor head having a housing with relatively movable skin engaging elements, including a guard element, one or more blades and a cap member. It has also been suggested to provide various degrees of movement of the entire razor head relative to the razor which supports the razor head.
  • the various embodiments of the present invention are directed to improvements in razors which permit a razor head to swivel and pivot in response to forces encountered during shaving.
  • 5,535,518 discloses a four bar linkage system which allows pivoting and swivelling, but does not show springs or biasing elements for returning the razor head to a neutral position after the removal of shaving forces.
  • the present invention is directed to improvements to shaving systems which allow a razor head to swivel and pivot relative to a razor during shaving.
  • Various embodiments of the present invention are directed to razors adapted to support a razor head during shaving while permitting the razor head to move relative to the razor in response to forces encountered during shaving.
  • the various embodiments described herein allow a razor head to swivel and also to pivot about an axis normal to a central axis of the razor and normal to an imaginary axis defined by the points of attachment of the razor to a razor head.
  • Preferred embodiments of the present invention restrict the movement of the engagement arms of a razor head to paths substantially parallel to a central longitudinal axis of the operative part of the razor. In this manner, no lateral component of blade movement is permitted along an axis defined by the engagement points of the engagement arms.
  • the engagement arms are also preferably restricted to movement within a single plane.
  • the various embodiments provide shaving systems with improved blade-to-skin contact independent of wrist movement, while simultaneously reducing the amount of lateral movement of the razor head relative to the shaving path.
  • the term "razor head” is meant to include cartridges adapted to be connected to a separate razor as well as the operative cutting portion of a disposable razor wherein the handle and cutting portion are formed as a single unit.
  • razors are provided with a plunger for returning a swivelling razor head to a predetermined position when shaving forces have been removed, a pair of engagement arms for providing pivoting motion, and an actuator for moving the engagement portions of the engagement arms closer together for loading and unloading a razor head.
  • a first biasing member e.g. a coil spring
  • a second biasing member e.g. a torsion spring
  • both the first biasing member and the second biasing member urge the actuator rearwardly to the "at rest” position.
  • Figure 1 is a top view of one razor of the present invention with sections removed. This illustrated embodiment is designed to engage a razor head (not shown) with a pair of engagement arms 10a, 10b which permit the razor head to swivel and pivot relative to the razor in response to forces encountered during shaving.
  • the illustrated razor of the present invention comprises a pair of engagement arms 10, a plunger 30, an actuator 50, a compression spring 60, a torsion spring 65, a top cover 70, a base 80, and a slidable cross beam 90.
  • the fork members (engagement arms 10) are pivotally connected to the cross beam 90 and slidably guided by the base 80 and top cover 70.
  • the plunger 30 is provided to return a razor head which has swivelled to a predetermined position while the engagement arms are also biased to return the razor head to a predetermined position, preferably normal to the central longitudinal axis of the razor, after shaving forces have been removed.
  • the engagement arms 10 comprise engagement pins 12 adapted to be received within recesses of a razor head in a manner which permits the razor head to swivel about an axis substantially parallel to an imaginary axis defined by pins 12.
  • the plunger 30 comprises a plunger base 35 having a pair of opposing slots 37 adapted to slidingly receive the sidewalls 75 of a cut out in top cover 70. Slots 37 in plunger base 35 thereby guide plunger 30 forwardly and rearwardly relative to cover 70 along a central longitudinal axis L of the razor. (See Fig.1)
  • the forward portion of plunger 30 which engages a ramped surface of a razor head extends through an opening 72 of cover 70.
  • Rearward movement of the plunger relative to cover 70 can be limited by a pair of detents (not shown).
  • Plunger 30 is forwardly biased and comprises a pin 33 which engages the forward end of coil spring 60.
  • the rearward end of coil spring 60 engages a pin 53 of actuator 50.
  • This arrangement advantageously utilizes a single coil spring to provide forward biasing forces on plunger 30 and rearward biasing forces on an actuator 50 described in further detail below.
  • the razors of the present invention advantageously permit pivoting of the entire razor head on the razor.
  • the term “pivoting” is used to define movement of the razor head about an imaginary axis normal to an axis defined by pins 12 of engagement arms 10 and also normal to a central, longitudinal axis L of the razor defined by the forward-rearward movement of plunger 30.
  • pivoting of a razor head is distinguished from the "rocking" motion of previously suggested systems which included a lateral component relative to the direction of the shaving stroke.
  • the engagement arms are maintained in a path which is substantially parallel to the central longitudinal axis L of the razor by guide walls of the top cover 70 and base 80 which slidingly engage sidewalls of the engagement members.
  • a first pair of outer, guide walls 74 of top cover 70 engage rear outer sidewalls 14 of engagement arms 10.
  • a pair of downwardly depending ridges 86 of bottom cover 80 slidingly engage rear inner sidewalls 16 of engagement arms 10.
  • the outer surfaces of abutments 77 of top cover 70 slidingly engage the inner, forward surfaces 17 of engagement arms 10. Therefore, engagement arms 10 are guided forwardly and rearwardly along paths substantially parallel to the central longitudinal axis L of the; razor within their range of motion experienced during shaving.
  • the forward portions of cover sidewalls 74 are each provided with inwardly sloping cam surfaces 78 and the engagement arms are also each provided with corresponding cam surfaces 18.
  • the cam surfaces 18 provided on the outer sidewalls of the engagement arms 10 engage the inwardly sloping cam surfaces 78 of side wall 74 while sloped recesses 19 on the inner sidewalls of the engagement arms permit the engagement arms to move inwardly when moved sufficiently forward to align with the abutments 77. Therefore, when engagement arms 10 are advanced forwardly relative to cover 70 to a point where cam surfaces 78 engage cam surfaces 18 of attachment arms 10, the attachments arms pivot inwardly reducing the space between opposing pins 12 to facilitate loading/unloading of a razor head.
  • the advancement of the engagement arms 10 is selectively performed by simply advancing an actuator button (shown in phantom in Fig. 1) provided on the top of the razor.
  • the actuator button securely engages a recess 51 of actuator 50 which, in turn, engages the cross beam 90 which, in turn, engages the engagement arms 10.
  • a pin 55 of actuator 50 passes through a torsion spring 65 and into a pivot recess 91 in cross beam 90.
  • the bottom of cross beam 90 is provided with a pair of laterally spaced pins 93 which are received within elongated pivoting recesses 13 of the engagement arms 10.
  • actuator 50 will cause the advancement of cross beam 90 and the advancement of the engagement arms 10 to a point where they will be moved together by cam surfaces 78.
  • the engagement arms 10 are returned to the retracted, spread-apart position by the cooperation of two biasing members in this illustrated embodiment.
  • Coil spring 60 positioned between plunger 30 and actuator 50 urges the actuator 50 rearwardly.
  • torsion spring 65 which is positioned over actuator pin 55 and engages the rearward ends of sidewall 74 supplies additional rearwardly directed biasing force on actuator 50 in order to return the engagement arms to the "at rest" position.
  • torsion spring 65 As shown in Figs. 1, 2A and 2B the linear segments of torsion spring 65 are also positioned in contact with or very close proximity to pins 93 of cross beam 90. Therefore, when one of the engagement arms is urged rearwardly during shaving causing the cross beam 90 to pivot about pivot recess 91, the pin 93 on that side of the cross beam 90 which moves rearwardly will engage the corresponding linear segment of torsion spring 65. When the shaving force is removed, torsion spring 65 will return cross beam 90 to its equilibrium position, thereby restoring engagement arms 10 to their "at rest" position.
  • Figure 5 illustrates the razor with both engagement arms positioned forwardly, having been advanced by advancing the actuator button thereby drawing the engagement portions of the engagement arms inwardly for loading or unloading a razor head

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Claims (14)

  1. Rasoir comportant une base (80) et préparé pour supporter une tête de rasoir connectée de manière pivotante audit rasoir :
    au moins deux bras de mise en prise (10a, 10b) supportés de manière mobile par rapport à ladite base (80), chacun desdits bras de mise en prise (10a, 10b) comportant une partie de mise en prise (12) pour supporter de manière pivotante ladite tête de rasoir sur le rasoir,
       caractérisé en ce que :
    la tête de rasoir est, en utilisation, mobile autour d'un axe imaginaire normal à l'axe défini par la partie de mise en prise (12) de chaque bras de mise en prise, et également normal à un axe central longitudinal L du rasoir,
    le rasoir comporte de plus une poutre transversale (90) connectée à chacun desdits bras de mise en prise (10a, 10b), et supportée pour un déplacement de pivotement et de coulissement par rapport à ladite base (80), de sorte que les bras de mise en prise sont supportés de manière coulissante par rapport à la base pour un déplacement le long de trajets sensiblement parallèles.
  2. Rasoir selon la revendication 1, dans lequel lesdits bras de mise en prise (10a, 10b) se déplacent le long de trajets sensiblement parallèles en réponse à des forces de rasage exercées sur une tête de rasoir.
  3. Rasoir selon la revendication 1 ou 2, dans lequel lesdits bras de mise en prise (10a, 10b) restent dans un plan unique lors d'un déplacement en réponse à des forces de rasage exercées sur une tête de rasoir.
  4. Rasoir selon l'une quelconque des revendications précédentes, dans lequel lesdits bras de mise en prise (10a, 10b) sont maintenus dans une première position en l'absence de forces extérieures, et ledit rasoir comporte de plus des moyens (65) pour rétablir lesdits bras de mise en prise dans ladite première position après que des forces de rasage extérieures aient été supprimées.
  5. Rasoir selon la revendication 4, dans lequel lesdits moyens de rétablissement comprennent un ressort de torsion (65).
  6. Rasoir selon l'une quelconque des revendications précédentes, comportant de plus :
    un piston mobile sollicité vers l'avant (30) pour rétablir une tête de rasoir à partir d'une position pivotée vers une position non-pivotée.
  7. Rasoir selon la revendication 6, comportant de plus des moyens pour solliciter ledit piston vers l'avant.
  8. Rasoir selon la revendication 7, comportant de plus un actionneur (50) connecté auxdits bras de mise en prise pour déplacer lesdites parties de mise en prise plus proches l'une de l'autre.
  9. Rasoir selon la revendication 7, dans lequel lesdits moyens de sollicitation et lesdits moyens de rétablissement (65) rappellent ledit actionneur vers l'arrière.
  10. Rasoir selon la revendication 9, dans lequel les moyens de sollicitation comprennent un ressort hélicoïdal (60).
  11. Rasoir selon la revendication 10, dans lequel ledit premier axe est sensiblement parallèle audit deuxième axe.
  12. Rasoir selon la revendication 10, dans lequel le troisième axe est sensiblement parallèle à au moins un axe parmi ledit premier axe et ledit deuxième axe.
  13. Rasoir selon la revendication 12, dans lequel lesdits bras de mise en prise restent dans un plan unique lors d'un déplacement en réponse à des forces de rasage exercées sur une tête de rasoir.
  14. Rasoir selon l'une quelconque des revendications précédentes, dans lequel :
    lesdits bras de mise en prise (10a, 10b) sont mobiles sensiblement parallèlement à un premier axe, et sont sollicités par des moyens de sollicitation,
    ledit piston (30) est mobile le long d'un second axe qui est sensiblement parallèle audit premier axe, et est sollicité par des moyens de retour, et
    ledit actionneur (50) est mobile le long d'un troisième axe, et sollicité par lesdits moyens de sollicitation et lesdits moyens de retour.
EP19980304199 1997-06-16 1998-05-28 Rasoir avec tête de support de rasoir pivotante et rotative Expired - Lifetime EP0885697B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87626497A 1997-06-16 1997-06-16
US876264 1997-06-16

Publications (2)

Publication Number Publication Date
EP0885697A1 EP0885697A1 (fr) 1998-12-23
EP0885697B1 true EP0885697B1 (fr) 2003-10-15

Family

ID=25367307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980304199 Expired - Lifetime EP0885697B1 (fr) 1997-06-16 1998-05-28 Rasoir avec tête de support de rasoir pivotante et rotative

Country Status (5)

Country Link
EP (1) EP0885697B1 (fr)
JP (1) JPH119856A (fr)
AU (1) AU750593B2 (fr)
CA (1) CA2235115A1 (fr)
DE (1) DE69818911T2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7913393B2 (en) 2008-10-07 2011-03-29 The Gillette Company Safety razor with multi-pivot blade unit
US10035276B2 (en) 2012-10-25 2018-07-31 Shavelogic, Inc. Dedicated attachment systems for consumer products
KR101887119B1 (ko) * 2017-11-21 2018-08-09 주식회사 도루코 면도기 조립체
US10272579B2 (en) 2012-05-25 2019-04-30 Shavelogic, Inc. Magnetic attachment for shaving cartridge

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6880253B1 (en) * 2000-06-23 2005-04-19 Bic Violex S.A. Razor with a movable shaving head
GB2375067A (en) * 2001-05-01 2002-11-06 Enda Keaveney Razor
GB2408010B (en) 2003-11-17 2007-03-28 Knowledge & Merchandising Inc Shaving product
US20060242847A1 (en) * 2005-04-05 2006-11-02 Eveready Battery Company, Inc. Razor handle and method for making same
US8720072B2 (en) 2010-08-11 2014-05-13 Thomas J. Bucco Razor with three-axis multi-position capability
US8745883B2 (en) 2010-09-29 2014-06-10 The Gillette Company Razor handle with a rotatable portion
US8745882B2 (en) 2010-09-29 2014-06-10 The Gillette Company Flexible and separable portion of a razor handle
US8938885B2 (en) 2012-05-01 2015-01-27 The Gillette Company Razor handle with a rotatable portion
US8789282B2 (en) 2012-05-25 2014-07-29 Shavelogic, Inc. Magnetic attachment for shaving cartridge
US10652956B2 (en) 2016-06-22 2020-05-12 The Gillette Company Llc Personal consumer product with thermal control circuitry and methods thereof
EP3351358B1 (fr) 2017-01-20 2019-11-20 The Gillette Company LLC Élément chauffant pour un rasoir
KR101894213B1 (ko) 2017-11-21 2018-09-04 주식회사 도루코 면도기 조립체
JP2021516577A (ja) 2018-03-30 2021-07-08 ザ ジレット カンパニー リミテッド ライアビリティ カンパニーＴｈｅ Ｇｉｌｌｅｔｔｅ Ｃｏｍｐａｎｙ Ｌｌｃ 剃毛かみそりカートリッジ
WO2019191231A1 (fr) 2018-03-30 2019-10-03 The Gillette Company Llc Manche de rasoir comprenant une partie pivotante
CA3092881A1 (fr) 2018-03-30 2019-10-03 The Gillette Company Llc Manche de rasoir avec elements mobiles
US11577417B2 (en) 2018-03-30 2023-02-14 The Gillette Company Llc Razor handle with a pivoting portion
JP2021517492A (ja) * 2018-03-30 2021-07-26 ザ ジレット カンパニー リミテッド ライアビリティ カンパニーＴｈｅ Ｇｉｌｌｅｔｔｅ Ｃｏｍｐａｎｙ Ｌｌｃ 枢動部分を有するかみそりハンドル
BR112020020123A2 (pt) 2018-03-30 2021-01-26 The Gillette Company Llc empunhadura de aparelho de barbear ou depilar com uma porção pivotante
US11691307B2 (en) 2018-03-30 2023-07-04 The Gillette Company Llc Razor handle with a pivoting portion
WO2019191178A1 (fr) 2018-03-30 2019-10-03 The Gillette Company Llc Manche de rasoir avec éléments mobiles
JP7090728B2 (ja) 2018-03-30 2022-06-24 ザ ジレット カンパニー リミテッド ライアビリティ カンパニー 枢動部分を有するかみそりハンドル
EP3546156B1 (fr) 2018-03-30 2021-03-10 The Gillette Company LLC Manche de rasoir comportant une partie pivotante
USD874061S1 (en) 2018-03-30 2020-01-28 The Gillette Company Llc Shaving razor cartridge
US11607820B2 (en) 2018-03-30 2023-03-21 The Gillette Company Llc Razor handle with movable members

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253236A (en) * 1979-06-19 1981-03-03 The Gillette Company Razor blade assembly
GB2116470B (en) 1982-03-12 1985-09-25 Gillette Co Safety razors
GB8506831D0 (en) 1985-03-15 1985-04-17 Wilkinson Sword Ltd Razor handle
GB9208098D0 (en) * 1992-04-13 1992-05-27 Gillette Co Razor with movable cartridge
US5535518A (en) * 1995-03-31 1996-07-16 Warner-Lambert Company Unique two-axis pivoting shaving system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7913393B2 (en) 2008-10-07 2011-03-29 The Gillette Company Safety razor with multi-pivot blade unit
US10272579B2 (en) 2012-05-25 2019-04-30 Shavelogic, Inc. Magnetic attachment for shaving cartridge
US10035276B2 (en) 2012-10-25 2018-07-31 Shavelogic, Inc. Dedicated attachment systems for consumer products
US10293504B2 (en) 2012-10-25 2019-05-21 Shavelogic, Inc. Dedicated attachment systems for consumer products
KR101887119B1 (ko) * 2017-11-21 2018-08-09 주식회사 도루코 면도기 조립체

Also Published As

Publication number Publication date
EP0885697A1 (fr) 1998-12-23
DE69818911T2 (de) 2004-09-09
DE69818911D1 (de) 2003-11-20
AU6373598A (en) 1998-12-17
AU750593B2 (en) 2002-07-25
JPH119856A (ja) 1999-01-19
CA2235115A1 (fr) 1998-12-16

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