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EP0357821A1 - Rasoir - Google Patents

Rasoir Download PDF

Info

Publication number
EP0357821A1
EP0357821A1 EP88114642A EP88114642A EP0357821A1 EP 0357821 A1 EP0357821 A1 EP 0357821A1 EP 88114642 A EP88114642 A EP 88114642A EP 88114642 A EP88114642 A EP 88114642A EP 0357821 A1 EP0357821 A1 EP 0357821A1
Authority
EP
European Patent Office
Prior art keywords
razor blade
razor
spring
blade unit
pivot axis
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
EP88114642A
Other languages
German (de)
English (en)
Other versions
EP0357821B1 (fr
Inventor
Wolfgang Althaus
Michael Schwarz
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.)
Wilkinson Sword GmbH
Original Assignee
Wilkinson Sword GmbH
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 Wilkinson Sword GmbH filed Critical Wilkinson Sword GmbH
Publication of EP0357821A1 publication Critical patent/EP0357821A1/fr
Application granted granted Critical
Publication of EP0357821B1 publication Critical patent/EP0357821B1/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 invention relates to a razor consisting of a razor blade unit, in which a razor blade is embedded in a plastic housing, and a handle, at the front end of which the razor blade unit by means of an openable and closable fork holder, starting from a spring-loaded zero position around the cutting edge of the razor blade parallel pivot axis is pivotally mounted.
  • Shavers in which a razor blade unit is interchangeably and pivotably mounted at the front end of a handle by means of a fork holder are known.
  • the fork holder of the handle engages in the middle of the underside of the razor blade unit, the razor blade unit being able to be pivoted on both sides of this zero position, starting from a spring-loaded zero position within a swivel range of 60 ° to 70 °.
  • the razor blade unit is always stored in the middle on the handle, which leads to unsafe guidance, as is the play that is inevitable between the bearing bore and the journal.
  • the object of the invention is to create a swivel-head razor with fewer swiveling movements of the razor blade unit with respect to the handle during the shaving process.
  • the invention proposes that the pivot axis of the fork holder extends in the region of the cutting edge of the razor blade.
  • a trained according to this technical teaching swivel head shaver has the advantage that the torque occurring during the shaving process is significantly reduced by the arrangement of the pivot axis in the cutting edge of the razor blade, so that the resulting pivoting movements during the shaving process are relatively low.
  • This has the particular advantage that the razor blade unit adapts exactly to the contour of the face.
  • the pivot axis of the fork holder preferably extends in the area of the cutting edge of the foremost razor blade.
  • the pivot axis preferably runs in front of the cutting edge of the razor blade and is arranged somewhat below the plane of the razor blade. This results in optimal shaving properties of the swivel head razor, since this is a stable guide.
  • the force is applied through the handle at the level of the force reduction on the blades.
  • the pivot axis can also be arranged below a front guide bar.
  • the razor blade unit is mounted on the fork holder in the area of the side walls of the plastic housing. In this way, there is a storage lying far outside, which leads to a safe guidance.
  • the fork holder is preferably designed as a spring mounted in the handle, in particular a wire spring, which has an actuation area for the fingers of the user to disengage the spring from the razor blade unit.
  • This poses represents a technically very simple possibility for locking the handle with the razor blade unit, in particular thereby enabling simple one-hand operation by the user.
  • this spring for the fork holder has a U-shaped base element, the front leg ends of which have fork arms lying in the plane of the base spring element and projecting outwards, which are engaged with their front ends in corresponding recesses in the razor blade unit and the bearing points define.
  • the U-shaped base spring element enables a simple disengagement of the fork holder on the razor blade unit by pressing the legs of this base spring element together, so that the front ends of the fork arms pivot inwards.
  • the front ends of the fork arms are each preferably S-shaped in the plane of the spring and form trunnions. This bend allows the fork holder of the handle to be inserted into the inside of the razor blade unit in a simple manner, so that the bearing points can be brought into close proximity to the foremost cutting edge in a technically very simple manner.
  • the razor blade unit has a stop for the zero position corresponding to the fork holder, against which the zero position spring presses the razor blade unit and the razor blade unit can only be pivoted in one direction, preferably backwards, starting from this zero position.
  • a U-shaped spring, a leaf spring, a leg spring or the like made of plastic or metal can be provided as the so-called zero-position spring.
  • the zero-position spring is preferably arranged at the rear, upper end of the handle and is supported on the rear underside of the razor blade unit. In any case, this zero-position spring presses the razor-blade unit into the zero-position position, from which the razor-blade unit can only be pivoted in one direction.
  • the swivel range of the razor blade unit is preferably 15 ° to 30 °. Together with the close arrangement of the swivel axis on the Cutting edge of the razor blade results in an optimal design of the razor with regard to its shaving properties, since the one-sided pivoting movement ensures a constant optimal contact pressure, which is not dependent on a central position.
  • FIGS. 4 and 5 show a schematic sectional illustration of a complete shaving apparatus 2, in which the razor blade unit 1 from FIGS. 1 to 3 is attached to the front end of a handle 3. This handle 3 or parts thereof are shown in FIGS. 4 and 5.
  • the razor blade unit 1 consists of a one-piece plastic housing 4. This has a front guide bar 5, two side walls 6 and a blade platform 7 on the inside.
  • a double razor blade consisting of the two razor blades 8,8 'is inserted from above through an opening 9 formed in the plastic housing 4.
  • the two razor blades 8, 8 ' are attached to a flat, elongated, cuboid spacer 10 in such a manner that the spacer 10 is sandwiched between the two razor blades 8, 8'.
  • the razor blades 8,8 'and the spacer 10 thus form a so-called razor blade / spacer unit 11.
  • the spacer 10 is somewhat longer than the two razor blades 8,8', so that the spacer 10 slightly over the ends of the razor blades 8, 8 'survives.
  • the blade platform 7 of the razor blade unit 1 has a recess 12 on both sides in the region of the side walls 6.
  • the razor blade / spacer unit 11 is placed from above in the direction of arrow P in the plastic housing 4 on the blade platform 7. Subsequently, as can be seen in FIG. 2, the plastic housing 4 is wrapped with wire 13 together with the razor blades / spacer unit 11 used.
  • a cap 14 with an essentially U-shaped cross-sectional profile is used for this purpose.
  • the cap 14, which extends over the entire length of the plastic housing 4 has a latching device 15 on the upper side. This consists of end-side latch arms 16 which each have a latch 17 at their front ends. Corresponding to these locking lugs 17, the plastic housing 4 each has a locking recess 18.
  • FIG. 3 Because the top of the cap 14 rests on the razor blade / spacer unit 11, the latter is fixed firmly on the blade platform 7 of the plastic housing 4.
  • a handle 3 is provided for the razor blade unit 1. This has a special fork holder 19 at its front end, by means of which the handle 3 can be snapped into the razor blade unit 1.
  • This fork holder 19 consists of a spring 20 in the form of a wire spring. This is shown in FIG. 4 on its own without the handle 3.
  • This spring 20 initially consists of a U-shaped base spring element 21, the front leg ends of which are bent vertically outwards and form fork arms 22. The front ends of the fork arms 22 are bent in an S-shape and form bearing pins 23.
  • FIG. 5 shows how the spring 20 of the fork holder 19 is arranged in the front area of the handle 3.
  • the base of the U-shaped base spring element 21 is fixed within the handle 3 in such a way that the legs extend forward.
  • the fork arms 22 come to lie in a T-shaped extension 24 of the handle 3.
  • the legs of the basic spring element 21 are exposed in the front area.
  • actuation areas B are formed so that the bearing pins 23 of the spring 20 can be pivoted inwards toward one another by compressing the legs of the base spring element 21. This is indicated by the arrows P ⁇ . After releasing the bearing pins 23 return to their starting position.
  • a so-called zero-position spring 25 can be seen in FIGS. 4 and 5.
  • this is designed as a leaf spring made of plastic or metal and is mounted with its lower end in the handle 3.
  • it can also be designed as a U-spring, as a leg spring, etc.
  • the technical meaning of the zero position spring 25 will be explained later with reference to FIG. 6.
  • the journals 23 are first pivoted inward in the manner described.
  • the fork holder 19 can be inserted into the razor blade unit 1, as can be seen in particular in FIGS. 3 and 6.
  • the razor blade unit 1 is each provided in the region of its side walls 6 with a recess 26 into which the bearing pins 23 of the fork holder 19 engage after the spring 20 has been released.
  • the pivot axis S defined by the bearing pin 23 lies in the region of the cutting edge 27 of the front razor blade 8, ie the pivot axis S runs in front of this cutting edge 27 parallel to it and somewhat offset below the plane of this front razor blade 8
  • FIG. 1 the pivot axis S defined by the bearing pin 23 lies in the region of the cutting edge 27 of the front razor blade 8
  • the pivot axis S runs in front of this cutting edge 27 parallel to it and somewhat offset below the plane of this front razor blade 8
  • the zero-position spring 25 presses the razor blade unit 1 forward against a stop 28 inside the plastic housing 4. During the shaving process, the razor-blade unit 1 can thus only be pivoted backwards against the force of the zero-position spring 25, the pivoting range being between 15 ° and 30 °.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Knives (AREA)
  • Glass Compositions (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP88114642A 1988-09-08 1988-09-08 Rasoir Expired - Lifetime EP0357821B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8811355U DE8811355U1 (de) 1988-09-08 1988-09-08 Rasierapparat

Publications (2)

Publication Number Publication Date
EP0357821A1 true EP0357821A1 (fr) 1990-03-14
EP0357821B1 EP0357821B1 (fr) 1991-11-06

Family

ID=6827698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114642A Expired - Lifetime EP0357821B1 (fr) 1988-09-08 1988-09-08 Rasoir

Country Status (9)

Country Link
US (1) US4970784A (fr)
EP (1) EP0357821B1 (fr)
JP (1) JPH02107290A (fr)
AT (1) ATE69192T1 (fr)
AU (1) AU620642B2 (fr)
BR (1) BR8904487A (fr)
DE (2) DE8811355U1 (fr)
ES (1) ES2027742T3 (fr)
HK (1) HK123994A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993010947A1 (fr) * 1991-11-27 1993-06-10 The Gillette Company Rasoirs

Families Citing this family (95)

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AR244587A1 (es) * 1989-11-17 1993-11-30 Warner Lambert Co Conjunto afeitador de seguridad movible angularmente
DE9004762U1 (de) * 1990-04-27 1991-08-29 Wilkinson Sword GmbH, 5650 Solingen Rasierapparatekopf, insbesondere Rasierklingeneinheit, eines Naßrasierapparates
DE9004760U1 (de) * 1990-04-27 1991-08-29 Wilkinson Sword GmbH, 5650 Solingen Rasierapparatekopf, insbesondere Rasierklingeneinheit, eines Naßrasierapparates
US5036587A (en) * 1990-08-29 1991-08-06 The Gillette Co. Razor blade assembly
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JP3195729B2 (ja) 1995-12-20 2001-08-06 株式会社貝印刃物開発センター 剃刀ヘッドにおける刃先のガード構造
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US5661907A (en) * 1996-04-10 1997-09-02 The Gillette Company Razor blade assembly
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CN111801206B (zh) 2018-03-30 2022-07-01 吉列有限责任公司 具有枢转部分的剃刀柄部
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
BR112020020134A2 (pt) 2018-03-30 2021-01-05 The Gillette Company Llc Empunhadura de aparelho de barbear ou depilar com elementos móveis
EP3774224B1 (fr) 2018-03-30 2025-07-09 The Gillette Company LLC Poignée de rasoir comprenant une partie rotative
JP2021516136A (ja) 2018-03-30 2021-07-01 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 可動部材を有するかみそりハンドル
EP3774214B1 (fr) 2018-03-30 2023-11-15 The Gillette Company LLC Système de rasoir
CN111801205B (zh) 2018-03-30 2022-08-23 吉列有限责任公司 具有枢转部分的剃刀柄部
US11607820B2 (en) 2018-03-30 2023-03-21 The Gillette Company Llc Razor handle with movable members
JP2021516102A (ja) * 2018-03-30 2021-07-01 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
US11123888B2 (en) 2018-03-30 2021-09-21 The Gillette Company Llc Razor handle with a pivoting portion
US12122059B2 (en) 2021-05-25 2024-10-22 The Gillette Company Llc Integrated spring element
US11511449B1 (en) * 2022-05-24 2022-11-29 Nature Lab Corporation Back shaver
US11529747B1 (en) * 2022-05-24 2022-12-20 Nature Lab Corporation Back shaver

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FR2457155A1 (fr) * 1979-05-25 1980-12-19 Gillette Co Tete de rasage pour rasoir de surete
EP0020816A1 (fr) * 1979-06-19 1981-01-07 The Gillette Company Rasoir mécanique
EP0077183A2 (fr) * 1981-10-13 1983-04-20 The Gillette Company Rasoir de sûreté
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EP0077183A2 (fr) * 1981-10-13 1983-04-20 The Gillette Company Rasoir de sûreté
US4514904A (en) * 1983-09-21 1985-05-07 The Gillette Company Razor handle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993010947A1 (fr) * 1991-11-27 1993-06-10 The Gillette Company Rasoirs
TR26884A (tr) * 1991-11-27 1994-08-22 Gillette Co Dönerek hareket eden bir bicak birimini kapsayan emniyetli tras makinesi

Also Published As

Publication number Publication date
HK123994A (en) 1994-11-18
AU4116789A (en) 1990-03-15
ES2027742T3 (es) 1992-06-16
BR8904487A (pt) 1990-04-24
DE3866104D1 (de) 1991-12-12
JPH02107290A (ja) 1990-04-19
DE8811355U1 (de) 1988-10-20
ATE69192T1 (de) 1991-11-15
EP0357821B1 (fr) 1991-11-06
US4970784A (en) 1990-11-20
AU620642B2 (en) 1992-02-20

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