EP0885697B1 - Rasierer mit schwenk- und drehbarer Rasierkopfstütze - Google Patents

Rasierer mit schwenk- und drehbarer Rasierkopfstütze 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
English (en)
French (fr)
Other versions
EP0885697A1 (de
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/de
Application granted granted Critical
Publication of EP0885697B1 publication Critical patent/EP0885697B1/de
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

Landscapes

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

Claims (14)

  1. Rasierer, der eine Basis (80) aufweist und dazu ausgelegt ist, einen Rasiererkopf zu halten, der schwenkbar mit dem Rasierer verbunden ist, und aufweist:
    mindestens zwei Eingriffsarme (10a, 10b) die beweglich im Verhältnis zur Basis (80) gestützt werden, wobei jeder der Eingriffsarme (10a, 10b) einen Eingriffsteil (12) zum schwenkbaren Stützen des Rasiererkopfs auf dem Rasierer aufweist,
    dadurch gekennzeichnet, dass:
    der Rasiererkopf im Betrieb um eine imaginäre Achse beweglich ist, die senkrecht zur Achse, die durch den Eingriffsteil (12) eines jeden Eingriffsarms definiert ist, und auch senkrecht zur mittigen Längsachse L des Rasierers ist;
    der Rasierer weiter einen Querarm (90) aufweist, der mit jedem Eingriffsarm (10a, 10b) verbunden ist und zur Schwenk- und Gleitbewegung im Verhältnis zur Basis (80) gestützt wird, wobei die Eingriffsarme für eine Bewegung entlang im Wesentlichen paralleler Wege gleitend im Verhältnis zur Basis gestützt werden.
  2. Rasierer nach Anspruch 1, bei dem sich die Eingriffsarme (10a, 10b) in Reaktion auf Rasierkräfte, die auf den Rasiererkopf ausgeübt werden, entlang im Wesentlichen paralleler Wege bewegen.
  3. Rasierer nach Anspruch 1 oder Anspruch 2, bei dem die Eingriffsarme (10a, 10b) in einer einzigen Ebene verbleiben, wenn sie sich in Reaktion auf die Rasierkräfte bewegen, die auf den Rasiererkopf ausgeübt werden.
  4. Rasierer nach einem der vorhergehenden Ansprüche, bei dem die Eingriffsarme (10a, 10b) in einer ersten Position gehalten werden, wenn externe Kräfte nicht einwirken, und der Rasierer weiter eine Einrichtung (65) zum Zurückführen der Eingriffsarme in die erste Position aufweist, nachdem die externen Kräfte weggenommen wurden.
  5. Rasierer nach Anspruch 4, bei dem die Rückführeinrichtung eine Torsionsfeder (65) umfasst.
  6. Rasierer nach einem der vorhergehenden Ansprüche, der weiter aufweist:
    einen nach vorne vorgespannten beweglichen Bolzen (30) zum Zurückführen eines Rasiererkopfs aus einer verschwenkten Position in eine nicht verschwenkte Position.
  7. Rasierer nach Anspruch 6, weiter mit einer Einrichtung zum Vorspannen des Bolzens nach vorne.
  8. Rasierer nach Anspruch 7, weiter mit einem Aktuator (50), der mit den Eingriffsarmen verbunden ist, zum Bewegen der Eingriffsteile aufeinander zu.
  9. Rasierer nach Anspruch 7, bei dem die Vorspanneinrichtung und die Rückführeinrichtung (65) den Aktuator nach hinten vorspannen.
  10. Rasierer nach Anspruch 9, bei dem die Vorspanneinrichtung eine Schraubenfeder (60) aufweist.
  11. Rasierer nach Anspruch 10, bei dem die erste Achse im Wesentlichen parallel zur zweiten Achse ist.
  12. Rasierer nach Anspruch 10, bei dem die dritte Achse im Wesentlichen parallel zu mindestens der ersten oder der zweiten Achse ist.
  13. Rasierer nach Anspruch 12, bei dem die Eingriffsarme in einer einzigen Ebene verbleiben, wenn sie sich in Reaktion auf Rasierkräfte bewegen, die auf einen Rasiererkopf ausgeübt werden.
  14. Rasierer nach einem der vorhergehenden Ansprüche, bei dem:
    die Eingriffsarme (10a, 10b) im Wesentlichen parallel zu einer ersten Achse und durch eine Vorspanneinrichtung vorgespannt beweglich sind;
    der Bolzen (30) entlang einer zweiten Achse beweglich ist, die im Wesentlichen parallel zur ersten Achse ist und durch eine Rückführeinrichtung vorgespannt ist; und
    der Aktuator (50) entlang einer dritten Achse beweglich und durch die Vorspanneinrichtung und die Rückführeinrichtung vorgespannt ist.
EP19980304199 1997-06-16 1998-05-28 Rasierer mit schwenk- und drehbarer Rasierkopfstütze Expired - Lifetime EP0885697B1 (de)

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 (de) 1998-12-23
EP0885697B1 true EP0885697B1 (de) 2003-10-15

Family

ID=25367307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980304199 Expired - Lifetime EP0885697B1 (de) 1997-06-16 1998-05-28 Rasierer mit schwenk- und drehbarer Rasierkopfstütze

Country Status (5)

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

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 (de) 2017-01-20 2019-11-20 The Gillette Company LLC Wärmelieferungselement für einen rasierer
KR101894213B1 (ko) * 2017-11-21 2018-09-04 주식회사 도루코 면도기 조립체
EP3774221A1 (de) 2018-03-30 2021-02-17 The Gillette Company LLC Rasierergriff mit einem schwenkbaren abschnitt
CN111867795B (zh) 2018-03-30 2022-03-18 吉列有限责任公司 剃刀柄部
CA3092881A1 (en) 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with movable members
EP3774229A1 (de) 2018-03-30 2021-02-17 The Gillette Company LLC Rasierergriff mit einem schwenkbaren abschnitt
CN111819044B (zh) 2018-03-30 2022-09-16 吉列有限责任公司 具有枢转部分的剃刀柄部
EP3552780B1 (de) 2018-03-30 2021-01-27 The Gillette Company LLC Rasiererkopf
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
EP3774235A1 (de) 2018-03-30 2021-02-17 The Gillette Company LLC Rasierergriff mit einem schwenkbaren abschnitt
EP3774230A1 (de) 2018-03-30 2021-02-17 The Gillette Company LLC Rasierergriff mit einem schwenkbaren abschnitt
CN111819046B (zh) 2018-03-30 2022-09-13 吉列有限责任公司 具有可移动构件的剃刀柄部
US11123888B2 (en) 2018-03-30 2021-09-21 The Gillette Company Llc Razor handle with a pivoting portion

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

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