EP0399412B1 - Rasoir mécanique - Google Patents

Rasoir mécanique Download PDF

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Publication number
EP0399412B1
EP0399412B1 EP90109530A EP90109530A EP0399412B1 EP 0399412 B1 EP0399412 B1 EP 0399412B1 EP 90109530 A EP90109530 A EP 90109530A EP 90109530 A EP90109530 A EP 90109530A EP 0399412 B1 EP0399412 B1 EP 0399412B1
Authority
EP
European Patent Office
Prior art keywords
handle
razor
head
spring
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
EP90109530A
Other languages
German (de)
English (en)
Other versions
EP0399412A1 (fr
Inventor
Wolfgang Althaus
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 EP0399412A1 publication Critical patent/EP0399412A1/fr
Application granted granted Critical
Publication of EP0399412B1 publication Critical patent/EP0399412B1/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
    • B26B21/40—Details or accessories
    • B26B21/52—Handles, e.g. tiltable, flexible
    • B26B21/521—Connection details, e.g. connection to razor heads
    • 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 wet razor with a handle, at the front end of which a razor head carrying a razor blade is arranged, wherein in the area between the razor head and the handle area of the handle a rotating device is provided, by means of which the razor head with its razor blade is turned relative to the handle area of the handle an axis of rotation perpendicular to the cutting edge of the razor blade and in the longitudinal center axis of the handle can be freely rotated, the rotating device being assigned a spring return device by means of which the shaving head can be automatically reset to the starting position based on the spring force, starting from a predetermined starting position after deflections limited by stops , and wherein the grip area of the handle is formed by a sleeve which is only rotatably mounted on the actual handle and between the and the actual handle Spring is supported.
  • a wet shaver of this type in which a razor head carrying a razor blade is arranged at the front end of a handle, this razor head being firmly connected to the handle. So that the razor head can better follow the facial contour while shaving, the handle is in its longitudinal central axis rotatably trained.
  • the handle area of the handle is formed by a sleeve, which is only rotatably mounted on the actual, inner handle.
  • the area of the handle located inside is designed as a type of cylinder segment, which, with its cylindrical outer lateral surface, slidably abuts the inner surface of the sleeve.
  • a pretensioned leaf spring is supported between the inner wall of the sleeve and the cylinder segment of the handle, the spring force of which can be adjusted by a screw.
  • a major disadvantage of this known wet shaver is that the leaf spring presses the outer surface of the cylinder segment against the inner wall of the outer sleeve, so that high frictional forces occur.
  • the consequence of this, however, is that the small adjustment forces which occur during shaving are not at all able to overcome these frictional forces, so that, despite the formation of a rotating device, a rotary movement during shaving is not possible at all.
  • the torsional force is very difficult to adjust.
  • the screw for adjusting the spring force is very disadvantageous because it prevents torsion and generates radial forces.
  • the possible deflection is approximately 45 °, which creates the risk of cuts and canting of the razor head.
  • a wet razor is known, the handle of which is loosely surrounded by a coil spring such that when the user grips the handle while shaving, the handle can rotate freely about its longitudinal central axis. An automatic resetting after swivel movement is not possible with this helical spring.
  • GB-A-463 265 discloses a wet shaver whose shaver head is resiliently mounted in the axial direction of the handle.
  • an outer, sleeve-shaped handle part is provided, in which the actual, rod-shaped handle is axially displaceable, a compression spring being supported between these two handle parts. A pivoting movement of the shaver head is not possible with this wet shaver.
  • Another wet shaver is known from GB-A-610 997. It has a handle, at the front end of which a razor head is rotatably arranged, which carries the razor blade. For this purpose, an axis is rotatably mounted within the handle, at the front end of which the razor head with the razor blade is fixed.
  • the handle In order to be able to switch off the rotary movement of the razor head during shaving, the handle consists of three sector-like handle parts, which can be moved inward by appropriately gripping the handle in such a way that the axis can no longer rotate within the handle.
  • the known wet shaver with the freely rotatable shaver head initially has the disadvantage that the resistance forces occurring during shaving lead to very rapid deflection and thus adjustment of the shaver head. This does not lead to an optimal shaving result.
  • the razor head remains in the respective rotational position after it has been lifted off the face, so that the razor head must first return to its starting position for the subsequent shaving process. This is done in that the razor head is pivoted back when pressed onto the face, which also affects the comfort of shaving. Alternatively, the user can turn the handle into the new position, which is also cumbersome.
  • the object of the invention is to further develop the known wet shaver of the type mentioned at the outset in such a way that the rotational behavior of the shaver head is improved.
  • the spring is a helical spring which surrounds the actual handle located in the area of the sleeve forming the grip area.
  • a wet shaver designed according to this technical teaching has the advantage that the turning behavior of the shaver head is improved in comparison to the known wet shavers.
  • This is achieved by the coil spring according to the invention, which lies in the longitudinal central axis of the handle and therefore generates virtually no frictional forces between the outer sleeve and the actual handle located inside. Missing frictional forces between the turned parts have the advantage that the small adjustment forces that occur during shaving lead to a rotary movement, so that an optimal adaptation to the contour of the face can be achieved during shaving.
  • Appropriate training of the helical spring enables a well-defined resetting behavior to be created.
  • the spring characteristic (quotient the difference of the torques and the angle of rotation) very precisely according to the requirements when shaving, by varying the number of turns and the wire diameter and the diameter of the helical spring.
  • the torque limit for the fully deflected state is preferably between 10 Nmm and 100 Nmm.
  • the deflection torque from the rest position is very low and can be defined as 1 Nmm.
  • the type of spring suspension avoids the transmission of the reaction forces to the bearing system. Finally, the assembly can be carried out extremely simply and safely with the wet shaver according to the invention.
  • the deflection be limited to a maximum of approximately 30 ° in both directions of rotation, starting from the starting position.
  • This critical angle is approximately plus / minus 30 °, so that for the reasons mentioned above, a movement beyond this angle should be prevented by the stop according to the invention.
  • the angle can also be less than 30 °.
  • a razor blade unit which is separate from the razor head and is known per se, can be provided for the razor blade and can be pivoted on the razor head is arranged.
  • the razor blade unit can be arranged on the razor head so that it can be pivoted both about an axis parallel to the cutting edge and additionally about an axis perpendicular thereto, so that, together with the rotatable arrangement of the razor head on the handle, a gimbal suspension of the razor blade with oscillation possibilities about a maximum of three axes is created to a certain extent is.
  • Both embodiments of a wet shaver shown in FIGS. 1 and 2 each have a handle 1, at the front end of which a shaver head 2 is arranged, for example can be plugged on.
  • a razor blade 3 is fixedly arranged in the razor head 2.
  • the plane of the razor blade 3 includes an acute angle with the longitudinal central axis L of the handle 1.
  • the handle 1 consists of a rear part 1 'and a front part 1''.
  • Fig. 3 shows that the front part 1 '' at its lower end Connecting rod 1 ''', on which the rear part 1' of the handle 1 is screwed so that the rear part 1 'is firmly connected to the front part 1''via the connecting rod 1'''.
  • a sleeve 4 is rotatably mounted about the longitudinal central axis L of the handle 1.
  • This sleeve 4 forms the grip area for the user and defines a rotating device 5, by means of which, when the user firmly grips the sleeve 4 defining the grip area, the rear part 1 ', the connecting rod 1''', the front part 1 '' of Handle 1 together with the razor head 2 and the razor blade 3 can be freely rotated about an axis of rotation D perpendicular to the cutting edge 5 of the razor blade 3, in this embodiment the axis of rotation D of the rotating device 5 lies in the longitudinal central axis L of the handle 1. Accordingly, the plane of rotation is perpendicular to the longitudinal central axis L of the handle 1.
  • a spring return device 6 is assigned to the rotating device 5 and defines a starting position of the shaving apparatus.
  • This spring return device 6 has a spring 7 in the form of a helical spring which surrounds the connecting rod 1 '' 'of the handle 1 and is fixed with one end in the front part 1' 'of the handle 1 and the other end in the sleeve 4.
  • a stop 8 is provided between the front part 1 ′′ and the sleeve 4, which can be seen in FIG. 4 and which limits the rotary movement of the razor head 2 with respect to the sleeve 4 to 30 ° on both sides, starting from the starting position.
  • the sleeve 4 is provided with a radially inward projection 9 and the front part 1 ′′ of the handle 1 with a partially annular recess 10.
  • the handle 1 consists of the rear grip area 11 and the Handle front part 12 on which the shaver head 2 is arranged.
  • a turn device 5 is again provided between this handle area 11 and the handle front part 12 of the handle 1.
  • the axis of rotation D is inclined with respect to the longitudinal center axis L of the handle 1 and extends essentially perpendicular to the plane of the razor blade 3 arranged in the razor head 2. Accordingly, the front end of the handle area 11 is chamfered in the area of the rotating device 5 of the handle 1.
  • the rotating device 5 of this second embodiment can be designed in a suitable manner, for example by the handle front part 12 being rotatably mounted in the grip area 11 via a pivot pin.
  • a suitable spring return device must also be provided.
  • the design of the rotating device 5 in the handle 1 optimally follows the razor head 2 and thus the razor blade 3 of the face contour during the shaving process in both embodiments.
  • the razor head 2 is always correctly aligned without, for example, the risk of tilting.
  • the spring return device 6 prevents the razor head 2 from being deflected and adjusted too quickly by the resistance forces that occur during shaving.
  • the spring return device 6 ensures that the razor head 2 returns to the defined starting position after lifting off the face.
  • the razor blade 3 is fixed in the razor head 2.
  • a so-called razor blade unit in which the razor blade is embedded in a non-detachable manner in a plastic housing, which in turn is held on the razor head, for example by means of a fork holder.
  • the razor blade unit it is additionally possible for the razor blade unit to be mounted on the razor head so as to be oscillatable about an axis parallel to the cutting edge of the razor blade.
  • the razor blade unit it is also conceivable to allow the razor blade unit to swing about an axis perpendicular thereto, so that a gimbal bearing of the razor blade 3 with optimal adjustment options is then created.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Knives (AREA)
  • Detergent Compositions (AREA)
  • Food-Manufacturing Devices (AREA)
  • Filtering Materials (AREA)

Claims (4)

  1. Rasoir mécanique comprenant un manche (1) à l'extrémité avant duquel est montée une tête de rasoir (2) portant une lame de rasage (3), dans la zone comprise entre la tête (2) et la zone de préhension du manche (1) étant prévu un système de pivotement (5) au moyen duquel la tête (2) munie de sa lame de rasage (3) peut pivoter librement, par rapport à la zone de préhension du manche (1), selon un axe de rotation (D) perpendiculaire à l'arête de coupe (S) de la lame (3) et coïncidant avec l'axe longitudinal médian (L) du manche (1), le système de pivotement (5) étant associé à un système de rappel élastique (6) au moyen duquel la tête (2), partant d'une position initiale prédéfinie, peut y être rappelée automatiquement par la force élastique au terme d'une déviation limitée par des butées (9), et la zone de préhension du manche (1) étant formée par un fourreau (4) qui est monté uniquement en rotation sur le manche (1) proprement dit, le ressort (7) prenant appui entre ledit fourreau (4) et le manche (1) proprement dit, caractérisé en ce que le ressort (7) est un ressort spiralé qui, dans la zone du fourreau (4) formant la zone de préhension, entoure le manche (1) proprement dit se trouvant à l'intérieur.
  2. Rasoir mécanique selon la revendication 1, caractérisé en ce que la déviation à partir de la position initiale dans les deux directions de pivotement est limitée à environ 30° maximum.
  3. Rasoir mécanique selon la revendication 1 ou 2, caractérisé en ce que les surfaces des pièces pivotantes sont appliquées à plat les unes contre les autres dans la zone du système de pivotement (5).
  4. Rasoir mécanique selon l'une des revendications 1 à 3, caractérisé en ce que la lame de rasage (3) est constituée par une unité de lames de rasage qui est séparée de la tête (2) et connue en soi et qui est montée de manière pivotante sur la tête (2).
EP90109530A 1989-05-22 1990-05-19 Rasoir mécanique Expired - Lifetime EP0399412B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8906324U 1989-05-22
DE8906324U DE8906324U1 (de) 1989-05-22 1989-05-22 Naßrasierapparat

Publications (2)

Publication Number Publication Date
EP0399412A1 EP0399412A1 (fr) 1990-11-28
EP0399412B1 true EP0399412B1 (fr) 1993-11-03

Family

ID=6839453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109530A Expired - Lifetime EP0399412B1 (fr) 1989-05-22 1990-05-19 Rasoir mécanique

Country Status (7)

Country Link
US (1) US5033152A (fr)
EP (1) EP0399412B1 (fr)
AT (1) ATE96720T1 (fr)
DE (2) DE8906324U1 (fr)
DK (1) DK0399412T3 (fr)
ES (1) ES2047196T3 (fr)
HK (1) HK64794A (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9210150D0 (en) * 1992-05-12 1992-06-24 Hill John Improvements in and relating to safety razors
US5526568A (en) * 1993-12-23 1996-06-18 Copelan; Herbert W. Razor with switch for perpendicular and limited oblique angle shaving
US7168173B2 (en) * 2004-03-11 2007-01-30 The Gillette Company Shaving system
AU2011202738B2 (en) * 2004-03-11 2011-09-08 The Gillette Company Llc Shaving system
US20100313426A1 (en) * 2009-06-12 2010-12-16 Terence Gordon Royle Safety razor with pivot and rotation
US8474144B2 (en) * 2009-08-12 2013-07-02 The Gillette Company Safety razor with rotational movement and locking button
WO2011091226A2 (fr) * 2010-01-21 2011-07-28 Preston Hage, Llc Rasoir de sûreté
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
EP3124186A1 (fr) * 2011-03-28 2017-02-01 The Gillette Company LLC Dispositif à main possédant un axe de rotation
US8978258B2 (en) 2011-04-05 2015-03-17 The Gillette Company Razor handle with a rotatable portion
EP2511057B1 (fr) 2011-04-15 2014-04-02 The Gillette Company Dispositif portable possédant un axe de rotation
US9032631B2 (en) 2012-03-28 2015-05-19 The Gillette Company Indicia for razor with a rotatable portion
US8938885B2 (en) 2012-05-01 2015-01-27 The Gillette Company Razor handle with a rotatable portion
EP2879845B1 (fr) * 2012-08-03 2018-10-31 The Gillette Company LLC Connextion entre manche et tête d'un rasoir
US11148310B2 (en) 2014-03-24 2021-10-19 Flexhandle, L.L.C. Razor with handle having articulable joint
US20150266191A1 (en) * 2014-03-24 2015-09-24 Michael J. MAIMONE Razor with handle having articulable joint
USD830632S1 (en) 2017-01-30 2018-10-09 Preston Hage, Llc Safety razor
USD829992S1 (en) 2017-01-30 2018-10-02 Preston Hage, Llc Cartridge head for a safety razor
USD829993S1 (en) 2017-08-15 2018-10-02 Preston Hage, Llc Handle for a safety razor
USD850723S1 (en) 2018-01-09 2019-06-04 Preston Hage, Llc Safety razor chassis
CN111867795B (zh) 2018-03-30 2022-03-18 吉列有限责任公司 剃刀柄部
CN111819048A (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
EP3546157B1 (fr) * 2018-03-30 2021-04-21 The Gillette Company LLC Mécanismes de rasoir
AU2019242569B2 (en) * 2018-03-30 2022-03-03 The Gillette Company Llc Razor handle with a pivoting portion
US11338460B2 (en) 2018-03-30 2022-05-24 The Gillette Company Llc Razor mechanisms
USD874061S1 (en) 2018-03-30 2020-01-28 The Gillette Company Llc Shaving razor cartridge
EP3774237A1 (fr) 2018-03-30 2021-02-17 The Gillette Company LLC Manche de rasoir avec éléments mobiles
EP3715071B1 (fr) * 2019-03-29 2022-01-19 Bic Violex S.A. Couplage, son procédé de fabrication, et poignée et rasoir le comprenant
EP4357089A1 (fr) * 2022-10-20 2024-04-24 BIC Violex Single Member S.A. Manche de rasoir

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH63399A (de) * 1913-02-21 1914-03-16 F Engensperger Rasierapparat
US2059172A (en) * 1933-08-12 1936-10-27 Sabiers Charles Safety razor
GB463265A (en) * 1935-10-03 1937-03-25 Joe Edgar Bevis Improvements in or relating to safety razors
US2239415A (en) * 1937-12-08 1941-04-22 Edelheit Sol Razor handle
US2235868A (en) * 1940-09-05 1941-03-25 Lloyd E Coolidge Trolling plane
US2325868A (en) * 1941-05-16 1943-08-03 Emmet H Morrow Razor blade handle
US2406985A (en) * 1945-04-19 1946-09-03 John W Anderson Razor
FR946081A (fr) * 1947-05-03 1949-05-23 Rasoir de sûreté
US4083103A (en) * 1975-09-19 1978-04-11 Estandian Ramon D Adjustable safety razor
US4492024A (en) * 1982-09-17 1985-01-08 The Gillette Company Razor blade assembly
US4617736A (en) * 1984-08-02 1986-10-21 Mccrary Mark W Swivel headed scraping device

Also Published As

Publication number Publication date
ES2047196T3 (es) 1994-02-16
EP0399412A1 (fr) 1990-11-28
DK0399412T3 (da) 1994-03-21
DE59003289D1 (de) 1993-12-09
DE8906324U1 (de) 1989-07-06
ATE96720T1 (de) 1993-11-15
US5033152A (en) 1991-07-23
HK64794A (en) 1994-07-15

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