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EP0020816A1 - Rasierhobel - Google Patents

Rasierhobel Download PDF

Info

Publication number
EP0020816A1
EP0020816A1 EP79105156A EP79105156A EP0020816A1 EP 0020816 A1 EP0020816 A1 EP 0020816A1 EP 79105156 A EP79105156 A EP 79105156A EP 79105156 A EP79105156 A EP 79105156A EP 0020816 A1 EP0020816 A1 EP 0020816A1
Authority
EP
European Patent Office
Prior art keywords
blade unit
razor
cam
housing
handle
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.)
Withdrawn
Application number
EP79105156A
Other languages
English (en)
French (fr)
Inventor
Chester F. Jacobson
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 US06/049,923 external-priority patent/US4253235A/en
Priority claimed from US06/049,920 external-priority patent/US4253237A/en
Priority claimed from US06/049,919 external-priority patent/US4253236A/en
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Publication of EP0020816A1 publication Critical patent/EP0020816A1/de
Withdrawn legal-status Critical Current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

  • This invention relates to wet shaving systems and is directed more particularly to a razor blade assembly and a razor handle for receiving the blade assembly to facilitate movement of said blade assembly during a shaving operation.
  • U.S. Patent No. 4,026,016 and U.S. Patent No. 4,083,104 there is shown and described a razor blade assembly adapted to be pivotally mounted on a razor handle which facilitates movement of the blade assembly on the handle during a shaving operation.
  • the blade assembly is provided on its underside with a cam means including two intersecting surfaces forming a cavity for receiving a biasing force from a spring biased plunger extending from the razor handle. The interaction of the plunger and cam means yieldingly urges the blade assembly to a "neutral" position.
  • the force exerted on the blade assembly by the plunger operates, upon release of the blade assembly, to urge the shaving unit outwardly from the handle, in some instances causing an outward movement of the blade assembly from the handle. It is preferable, from a safety standpoint to effect release of the blade assembly without outward projection thereof from the razor handle.
  • a razor blade unit incorporating a housing, at least one blade permanently fixed to said housing, said housing having pivotal mounting means arranged to cooperate with complimentary pivotal mounting means of a razor handle and defining an axis for pivotal movement of said blade unit, characterized in that a cam structure is provided on said housing at one end thereof to engage a biasing member on the razor handle to urge said blade toward a neutral position.
  • a razor handle having first and second arms spaced to receive a blade unit therebetween, first and second pivotal mountings provided respectively on said first and second arms and arranged to engage complimentary pivotal mountings provided one at each end of said blade unit pivotally to retain said blade unit between said arms, characterized in that a cam element is provided on at least one of said arms to engage cooperating cam structure on the blade unit pivotally to urge said blade unit toward a neutral position.
  • the razor includes a grip portion 2 and a head portion 4.
  • the head portion 4 includes a first arm 6 having an upstanding end portion 8.
  • a first journal 10 is fixed to the first arm end portion 8.
  • Affixed to the first arm 6 is a first frame member 12 having an opening 14 therein.
  • a ' first protrusion 16 extends inwardly of the opening 14 from a side of the first frame member 12.
  • the head portion 4 further includes a second arm 106 having an upstanding end portion 108.
  • a second journal 110 is fixed to the second arm end portion 108.
  • Affixed to the second arm 106 is a second frame member 112 having an opening 114 therein, the opening 114 being generally in alignment with the first opening 14.
  • a second protrusion 116 extends inwardly of the opening 114 from a side of the second frame member 112, the second protrusion 116 being generally opposed to the first protrusion 16.
  • a second extension 118 Extending downwardly from a bottom portion of the second frame member 112, as viewed in the drawings, is a second extension 118 having an inclined edge 120 forming a second cam surface 122, and an edge surface 124 defining a second channel wall 126, the first and second channel walls 26, 126 defining a channel 200 therebetween, the channel 200 leading to an intersection of the opposed first and second cam surfaces 22, 122.
  • a coil spring 202 is disposed in the openings 14, 114, fitted over the protrusions 16, 116.
  • the spring 202 operates to urge the frame members 12, 112 to stay in substantial alignment with each other and biases the frame members 12, 112 toward the position shown in Fig. 2.
  • the head portion 4 includes a first housing member 204 having an opening 206 therein. Extending through the opening 206 is a push button 208 in which is mounted a bifurcated actuator 210 having upstanding lugs 212, 214 defining a recess 216 therebetween.
  • the actuator 210 includes a stem portion 218 about which there is disposed a coil spring 220.
  • the actuator 210 engages the opposed first and second cam surfaces 22, 122 by way of the channel 200, the lug 212 being on one side of the extensions 18, 118 and the lug 214 being on the other.
  • the coil spring 220 maintains the actuator 210 in engagement with the cam surfaces 22, 122.
  • the head portion 4 further includes a second housing member 222, which along with the first housing member 204, enclose the above described mechanism.
  • the second housing member 222 includes a pair of upstanding detents 224, 226 which are disposed proximate to the arm end portions 8, 108, respectively.
  • the upstanding detents 224, 226 are operative to prevent accidental endwise movement of the shaving unit which might cause separation of the journals and inadvertant release of the shaving unit. This is apparent from Figure 2 of the drawings which clearly shows the upstanding detent 226 in a position to abut a wall 426 of the shaving unit and prevent further leftwards movement of said shaving unit.
  • journal bearings which accept the journals 10, 110 for pivotally mounting the shaving unit on the razor.
  • an operator depresses the push button 208, urging the actuator forcefully against the cam surfaces 22, 122, causing the frame members 12, 112 to slide in opposite directions along the axis of the coil spring 202, compressing the spring 202.
  • the arm end portions are then positioned to bring the journals 10, 110 into register with the aforementioned journal bearings.
  • the coil spring 202 causes the frame members 12, 112 to snap back into alignment and the opposed journals 10, 110 to move along their axes toward one another to engage the shaving unit.
  • the operation is repeated, the journals 10, 110 being thereby caused to move outwardly along their aligned axes to separate from the shaving unit and thereby release the shaving unit from the razor.
  • first and second arm portions 6, 106 are each provided with cam means 300, 302 thereon, the cam means being engageable with complementary cam means on the blade assembly (further described below).
  • the cam means 300, 302 cooperate with the blade assembly cam means to urge the pivotally mounted blade assembly toward a neutral position.
  • the cam means 300, 302 each comprise an inwardly-extending protrusion on the upstanding end portion 8, 108 of either arm-6, 106.
  • Each cam includes a pair of cam surfaces 304, 306 (Fig. 5) intersecting at an apex 308.
  • the illustrative blade assembly includes a frame portion 402 including blade support portions 404, 406 to which are attached blade means 408, 410.
  • the frame portion 402 is retained in a housing 412 having a guard portion 414 and a cap portion 416, the blade means 408, 410 being disposed in an opening 418 therebetween.
  • the blade assembly includes a pair of pivot mounting means preferably journal bearings 420, 422 (Figs. 2 and 3).
  • the journal bearings 420, 422 are disposed in end walls 424, 426, respectively, of the housing 412. on each of the end walls, 424, 426, proximate the pertinent journal bearings, there is disposed a recess 428.
  • the recess 428 broadens outwardly from its inwardmost point 430, as viewed in Fig. 6.
  • Each end wall 424, 426 of the housing is provided with a ridge 432.
  • the recess 428 extends through the ridge 432.
  • the recess 428 comprises a cam means and is deepest in the area of the ridge 432 and tapers toward the outer surface of the end wall 424, 426.
  • the taper of the recess toward the crest 436 of the ridge 432 defines cam surfaces 440, 442 adapted to receive the above-described cam members 300, 302 disposed on the first and second arm portions of the razor to which the blade assembly is connected.
  • the pivot mounting means 420, 422 are adapted to accept complementary pivot mounting means on the handle, preferably the journal members 10, 110 disposed on the aforementioned first and second razor arm portions, thereby to facilitate pivotal movement of the blade assembly on the razor during a shaving operation.
  • the blade assembly preferably comprises a molded plastic or a formed metal and the blade assembly pivot mounting means 420, 422 and the blade assembly cam means 428 are integrally molded or formed portions of the blade assembly.
  • journal bearings 420, 422 receive the journals 10, 110 on the razor and the generally V-shaped recesses 428 receive the cam members 300, 302 on the razor.
  • Each cam member engages the deepest portion of its respective recess.
  • pivotal movement of the blade assembly about an axis extending through the bearings 420, 422 causes movement of the recess, such as to bring one or the other of the cam surfaces 440, 442 to bear against the complemental surfaces of the cam members.
  • the cam members seek the deepest portion of the recesses and thereby urge the return of the blade unit to its "neutral" position.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
EP79105156A 1979-06-19 1979-12-13 Rasierhobel Withdrawn EP0020816A1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/049,923 US4253235A (en) 1979-06-19 1979-06-19 Shaving system
US49923 1979-06-19
US49919 1979-06-19
US49920 1979-06-19
US06/049,920 US4253237A (en) 1979-06-19 1979-06-19 Razor handle
US06/049,919 US4253236A (en) 1979-06-19 1979-06-19 Razor blade assembly

Publications (1)

Publication Number Publication Date
EP0020816A1 true EP0020816A1 (de) 1981-01-07

Family

ID=27367645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79105156A Withdrawn EP0020816A1 (de) 1979-06-19 1979-12-13 Rasierhobel

Country Status (2)

Country Link
EP (1) EP0020816A1 (de)
BR (1) BR7908554A (de)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357821A1 (de) * 1988-09-08 1990-03-14 Wilkinson Sword Gesellschaft mit beschränkter Haftung Rasierapparat
WO1993010947A1 (en) * 1991-11-27 1993-06-10 The Gillette Company Razors
US5787586A (en) * 1996-04-10 1998-08-04 The Gillette Company Shaving system and method
WO2005007355A1 (en) * 2003-07-07 2005-01-27 Eveready Battery Company, Inc. Pivotable shaving cartridge and razor including same
US6889438B2 (en) 1995-11-10 2005-05-10 The Gillette Company Oval frame razor
GB2462086A (en) * 2008-07-22 2010-01-27 Alon Coresh Articulated Shaving Set
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
WO2019191159A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
WO2019191160A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
WO2019191164A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
WO2019191161A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
US10899030B2 (en) 2018-03-30 2021-01-26 The Gillette Company Llc Razor handle with a pivoting portion
US11123888B2 (en) 2018-03-30 2021-09-21 The Gillette Company Llc Razor handle with a pivoting portion
US11154999B2 (en) 2018-03-30 2021-10-26 The Gillette Company Llc Shaving razor cartridge
US11247357B2 (en) 2017-01-20 2022-02-15 The Gillette Company Llc Heating delivery element for a shaving razor
US11453138B2 (en) 2018-03-30 2022-09-27 The Gillette Company Llc Razor handle with a pivoting portion
USD965221S1 (en) 2018-03-30 2022-09-27 The Gillette Company Llc Shaving razor cartridge
US11541560B2 (en) 2018-03-01 2023-01-03 Rolling Razor, Inc. Precision razor with low cost assembly
US11558931B2 (en) 2016-06-22 2023-01-17 The Gillette Company Llc Personal consumer product with thermal control circuitry
US11577417B2 (en) 2018-03-30 2023-02-14 The Gillette Company Llc Razor handle with a pivoting portion
US11590669B2 (en) 2018-03-30 2023-02-28 The Gillette Company Llc Razor handle with movable members
US11607820B2 (en) 2018-03-30 2023-03-21 The Gillette Company Llc Razor handle with movable members
US11691307B2 (en) 2018-03-30 2023-07-04 The Gillette Company Llc Razor handle with a pivoting portion
US11766795B2 (en) 2018-03-30 2023-09-26 The Gillette Company Llc Razor handle with a pivoting portion
US11806885B2 (en) 2018-03-30 2023-11-07 The Gillette Company Llc Razor handle with movable members
US11945128B2 (en) 2018-03-30 2024-04-02 The Gillette Company Llc Razor handle with a pivoting portion

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386536A (en) * 1944-04-03 1945-10-09 Bensel Duryea Safety razor
US3975820A (en) * 1975-05-12 1976-08-24 William Robert Lincoln Torance Razors and blade cartridge therefore
US4083104A (en) * 1975-05-12 1978-04-11 The Gillette Company Razor handle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386536A (en) * 1944-04-03 1945-10-09 Bensel Duryea Safety razor
US3975820A (en) * 1975-05-12 1976-08-24 William Robert Lincoln Torance Razors and blade cartridge therefore
US4083104A (en) * 1975-05-12 1978-04-11 The Gillette Company Razor handle

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357821A1 (de) * 1988-09-08 1990-03-14 Wilkinson Sword Gesellschaft mit beschränkter Haftung Rasierapparat
US4970784A (en) * 1988-09-08 1990-11-20 Wilkinson Sword Gesellschaft Mit Beschrankter Haftung Razor with a pivoted detachable blade unit
AU620642B2 (en) * 1988-09-08 1992-02-20 Wilkinson Sword Gesellschaft Mit Beschrankter Haftung Razor head, especially a razor blade unit
US5533263A (en) * 1991-11-27 1996-07-09 The Gillette Company Razors
TR26884A (tr) * 1991-11-27 1994-08-22 Gillette Co Dönerek hareket eden bir bicak birimini kapsayan emniyetli tras makinesi
AU666891B2 (en) * 1991-11-27 1996-02-29 Gillette Company, The Razors
EP0838312B1 (de) * 1991-11-27 2010-06-02 The Gillette Company Rasierapparate
EP0838312A2 (de) * 1991-11-27 1998-04-29 The Gillette Company Rasierapparate
AU694282B2 (en) * 1991-11-27 1998-07-16 Gillette Company, The Razors
US5794354A (en) * 1991-11-27 1998-08-18 The Gillette Company Razors
US6502318B1 (en) 1991-11-27 2003-01-07 The Gillette Company Razors
US6612040B2 (en) 1991-11-27 2003-09-02 The Gillette Company Razors
WO1993010947A1 (en) * 1991-11-27 1993-06-10 The Gillette Company Razors
US6889438B2 (en) 1995-11-10 2005-05-10 The Gillette Company Oval frame razor
US7610683B2 (en) 1995-11-10 2009-11-03 The Gillette Company Oval frame razor
US7178243B2 (en) 1995-11-10 2007-02-20 The Gillette Company Oval frame razor
US5787586A (en) * 1996-04-10 1998-08-04 The Gillette Company Shaving system and method
US5813293A (en) * 1996-04-10 1998-09-29 The Gillette Company Shaving system and method
US5822869A (en) * 1996-04-10 1998-10-20 The Gillette Company Razor handle
US5855071A (en) * 1996-04-10 1999-01-05 The Gillette Company Razor handle
US5918369A (en) * 1996-04-10 1999-07-06 The Gillette Company Shaving system and method
US6029354A (en) * 1996-04-10 2000-02-29 The Gillette Company Shaving system and method
WO2005007355A1 (en) * 2003-07-07 2005-01-27 Eveready Battery Company, Inc. Pivotable shaving cartridge and razor including same
GB2462086A (en) * 2008-07-22 2010-01-27 Alon Coresh Articulated Shaving Set
US8479398B2 (en) 2008-07-22 2013-07-09 Leon Alon Coresh Shaving assembly
US8595940B2 (en) 2008-07-22 2013-12-03 Leon Alon Coresh Shaving assembly
US9144914B2 (en) 2011-06-30 2015-09-29 Rolling Razor, Inc. Razor cartridge with reduced part count and expanded range of motion
US9821480B2 (en) 2011-06-30 2017-11-21 Rolling Razor, Inc Razor cartridge with reduced part count and expanded range of motion
USRE49648E1 (en) 2011-06-30 2023-09-12 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
US11558931B2 (en) 2016-06-22 2023-01-17 The Gillette Company Llc Personal consumer product with thermal control circuitry
US11247357B2 (en) 2017-01-20 2022-02-15 The Gillette Company Llc Heating delivery element for a shaving razor
US11541560B2 (en) 2018-03-01 2023-01-03 Rolling Razor, Inc. Precision razor with low cost assembly
USD965221S1 (en) 2018-03-30 2022-09-27 The Gillette Company Llc Shaving razor cartridge
WO2019191160A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
US10899030B2 (en) 2018-03-30 2021-01-26 The Gillette Company Llc Razor handle with a pivoting portion
US11123888B2 (en) 2018-03-30 2021-09-21 The Gillette Company Llc Razor handle with a pivoting portion
US11154999B2 (en) 2018-03-30 2021-10-26 The Gillette Company Llc Shaving razor cartridge
CN111788049A (zh) * 2018-03-30 2020-10-16 吉列有限责任公司 具有枢转部分的剃刀柄部
CN111788049B (zh) * 2018-03-30 2022-08-16 吉列有限责任公司 具有枢转部分的剃刀柄部
US11453138B2 (en) 2018-03-30 2022-09-27 The Gillette Company Llc Razor handle with a pivoting portion
WO2019191161A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
CN111819051B (zh) * 2018-03-30 2022-10-04 吉列有限责任公司 具有枢转部分的剃刀柄部
WO2019191164A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
CN111819051A (zh) * 2018-03-30 2020-10-23 吉列有限责任公司 具有枢转部分的剃刀柄部
US11577417B2 (en) 2018-03-30 2023-02-14 The Gillette Company Llc Razor handle with a pivoting portion
US11590669B2 (en) 2018-03-30 2023-02-28 The Gillette Company Llc Razor handle with movable members
US11607820B2 (en) 2018-03-30 2023-03-21 The Gillette Company Llc Razor handle with movable members
US11691307B2 (en) 2018-03-30 2023-07-04 The Gillette Company Llc Razor handle with a pivoting portion
WO2019191159A1 (en) * 2018-03-30 2019-10-03 The Gillette Company Llc Razor handle with a pivoting portion
US11766795B2 (en) 2018-03-30 2023-09-26 The Gillette Company Llc Razor handle with a pivoting portion
US11780105B2 (en) 2018-03-30 2023-10-10 The Gillette Company Llc Razor handle with a pivoting portion
US11806885B2 (en) 2018-03-30 2023-11-07 The Gillette Company Llc Razor handle with movable members
USD1021248S1 (en) 2018-03-30 2024-04-02 The Gillette Company Llc Shaving razor cartridge
US11945128B2 (en) 2018-03-30 2024-04-02 The Gillette Company Llc Razor handle with a pivoting portion

Also Published As

Publication number Publication date
BR7908554A (pt) 1981-03-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE GB NL

17P Request for examination filed

Effective date: 19810619

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830516

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JACOBSON, CHESTER F.