EP0614408B1 - Rasoir equipe d'un systeme protegeant les lames - Google Patents

Rasoir equipe d'un systeme protegeant les lames Download PDF

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Publication number
EP0614408B1
EP0614408B1 EP93900586A EP93900586A EP0614408B1 EP 0614408 B1 EP0614408 B1 EP 0614408B1 EP 93900586 A EP93900586 A EP 93900586A EP 93900586 A EP93900586 A EP 93900586A EP 0614408 B1 EP0614408 B1 EP 0614408B1
Authority
EP
European Patent Office
Prior art keywords
shaving
handle
razor
cartridge
blade
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
EP93900586A
Other languages
German (de)
English (en)
Other versions
EP0614408A1 (fr
EP0614408A4 (fr
Inventor
Brian Oldroyd
Kevin James Wain
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
Application filed by Gillette Co LLC filed Critical Gillette Co LLC
Publication of EP0614408A1 publication Critical patent/EP0614408A1/fr
Publication of EP0614408A4 publication Critical patent/EP0614408A4/fr
Application granted granted Critical
Publication of EP0614408B1 publication Critical patent/EP0614408B1/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools

Definitions

  • This invention relates to a razor according to the preambles of claims 1 and 14.
  • Such a razor is described in GB-A-1565415.
  • the razor has a shaving unit mounted on a handle for pivotal movement about an axis extending parallel with the blade edge.
  • the handle is bifurcated to provide wings which are resilient enough to provide for assembly of the shaving unit between the wings of the handle by elastic deformation of the wings and retention of the head over its range of movement.
  • a disadvantage of the construction, shown in GB-A-1565415, is the need for a finger or thumb of the user to manipulate the shaving unit, close to the actual blade edges, with the consequent danger of physical damage to the blade edges, or the user's hand.
  • GB-A-2100650 describes a razor having a guard and blade members in a fixed position on a handle of the razor and includes a cap surface, which is movable between a position in which the blade(s) are exposed for shaving and one in which the or each blade is shielded.
  • the cap surface is fixed but the guard-platform and blade pivot on an axis in the area of the guard surface, to carry the blade edge between a shaving position and a shielded position.
  • GB-A-2113594 and GB-A-2107236 each disclose a razor having a fixed guard bar and top cap, and a blade platform which can move between a shaving position and a retracted position.
  • GB-A-2118088 describes a razor having a fixed blade and top cap, but a pivotable guard bar, movable between a position in which the blade is exposed for shaving and a position in which the blade is protected.
  • the present invention is a razor which provides for blade protection during periods of non-use, without detriment to the shaving geometry, and with a reduced likelihood of damage to the blades or the bands of a user during manipulation of the razor.
  • a razor including a handle, a razor blade assembly having a cap and a guard with at least one blade interposed between them and a shielding member on said handle for shielding said at least one blade, said razor blade assembly being movable relative to the handle between a shaving position and a non-shaving position in which the cutting edge of said at least one blade is protected, said razor blade assembly being movable into said non-shaving position behind said shielding member without changing the shaving geometry defined by relative positions between said cap, guard and at least one blade, characterized in that said razor blade assembly is in the form of a retractable shaving unit, and in that an actuator is provided on the handle and coupled to the shaving unit for retracting the shaving unit either out and from behind said shielding member to said shaving position or into and behind said shielding member to said non-shaving position. shaving unit and in that an actuator is provided on the handle and coupled to the shaving unit for retracting the shaving unit between a starting shaving position and a range of deflected shaving positions.
  • a razor including a handle, a razor blade assembly having a cap and a guard with said at least one blade interposed between them, said razor blade assembly being movable relative to the handle between a shaving position and a non-shaving position in which the cutting edge of said at least one blade is protected, and a shielding member on said handle for shielding said at least one blade, said razor blade assembly being movable into said non-shaving position behind said shielding member without changing the shaving geometry defined by relative positions between said cap, guard and at least one blade, characterized in that said razor blade assembly is in the form of a retractable shaving unit, in that an actuator is provided on the handle for retracting the shaving unit, in that the shaving unit in a shaving disposition is carried on the handle for swivelling movement between a starting shaving position and deflected shaving positions, and in that the shaving unit is held by claw surfaces captive in the handle for rotation on the handle between the retracted position, a starting shaving position and a range of deflect
  • the actuator means is manually movable in order to move the shaving unit at will between the shaving and retracted positions.
  • the actuator means comprises a link between the shaving unit and the handle.
  • the shaving unit has two shaving blades, arranged in tandem. It can be arranged for the handle to be a permanent one, co-operating with replaceable shaving cartridges, the handle having a head which includes surfaces for releasably retaining one such cartridge on the head.
  • the link is flexible, preferably having a distal end contiguous with the head and a proximal end attached to the body. This attachment is conveniently by a pin and slot. If the pin is on the link it may provide a surface (such as a button) on the back of the handle, that is, on the surface of the body which faces away from the surface to be shaved.
  • a substantial proportion of razors currently bought by consumers are of the type which allows swivelling movement between a shaving cartridge and a shaver body, during shaving, to allow the working surfaces of the cartridge to follow the contours of the skin surface being shaved.
  • the connection between the shaving unit and the body is such as to allow, in the shaving disposition, such swivelling movement.
  • the link provides a tensile force which pulls the shaving cartridge into its retracted disposition, and a compressive force which pushes the head into its shaving disposition.
  • translational movement between these two dispositions is accompanied by a rotational component of motion.
  • the direction of rotational movement can be, in different embodiments, that which would increase the shaving attitude angle or reduce it.
  • the shaving attitude angle is the angle subtended between the longitudinal axis of the handle and a line through the skin-contacting surfaces of the cap and guard, perpendicular to the length of the cap, guard and blade surfaces.
  • the shaving unit is held to the body by the link, but in other embodiments the unit can be held onto the body by separate means, such as a pin and slot at each side of the shaving head.
  • a pin and slot at each side of the shaving head.
  • Razor cartridges and shaving units are increasingly provided with a hydrophilic lubricating strip. This needs to dry out between uses.
  • the razor comprises a handle 10 and a shaving unit in the form of a cartridge 11 at the head of the razor.
  • the cartridge 11 comprises a cap 20, blades 50, 51 and a guard 22 and is mounted in a cartridge carrier 61 which is movably mounted in a head end of the handle 10.
  • a lubricating strip 52 extends along one edge of the cartridge.
  • Each end wall 63 of the cartridge carrier 61 has a projecting pin 12 which engages in a corresponding elongate slot 13 in the head end of the handle 10. Inherent resilience of the handle 10 permits engagement of the pins 12 in their corresponding slots 13.
  • the carrier 61 has a long wall 62 and two end walls 63 each carrying one of the pins 12. Lugs 19a, 19b, 19c are provided at the mid-point of the long wall 62.
  • a narrow shelf surface 64 extends around the base of a space 65 between the long wall 62 and the two end walls 63, the space 65 being sized to receive snugly the cartridge 11, with the cartridge sliding over the top surface of the shelf 64.
  • a pair of resilient picker fingers 66 extends forwards from the shelf 64, each finger having a detent shoulder 67, the two shoulders both facing out from the centre of the carrier 61, in opposed directions. These fingers engage with corresponding formations, on the cartridge 11, which are not visible in Fig. 1 but which are described below, with reference to Figs. 1 to 6.
  • a link 14 is a snap fit in the handle 10, by the engagement of a button 15 in a slot 16 on the back surface of the handle 10.
  • the outward-facing surface of the button 15 is provided with ridges to assist the grip of a finger or thumb of the user on the button 15 to move the link 14 between the extended disposition of Fig. 2, for shaving, and the retracted disposition shown in Fig. 3 shielded by a shield member 23.
  • the distal end 18 of the link 14 is a slide fit between a pair of lugs 19a, 19b, and a third, opposed, lug 19c, all of which are on the long wall 62 of the cartridge carrier 61 adjacent to the cap 20 of any cartridge carried by the carrier 61.
  • Fig. 2 shows the pin 12 in the distal end of the slot 13, so that the blades 50, 51 of the cartridge 11, between the guard 22 and the cap 20, are presented at the correct attitude for comfortable shaving.
  • the above-described first embodiment is of a shaving system, with a succession of replaceable cartridges being used in the same razor handle.
  • a cartridge can be connected direct to the link, thereby providing a razor in which the handle and cartridge are disposable together.
  • Figs. 4 to 16 show the construction and operation of the second illustrated embodiment, and much of this is the same as for the first embodiment, so that identical reference numerals are used whenever possible.
  • the handle 10 has a stem which widens at its head into a plate 30 which has upturned ends 31 which farm a guide channel 32 for each side of the cartridge 11.
  • Figs. 4 and 5 show the cartridge 11 fully accommodated within the guide channels 32, with the shaving blades 21 of the cartridge 11 closely protected by a shielding wall 33 of the plate 30 of the handle 10.
  • the link 14 has a proximal end in the form of a strip 34 which slides in a corresponding slot within the plate 30 of the handle.
  • a button 15 on the top surface of the plate 30, for manual manipulation of the link to move between its distal and proximal positions but, unlike rig. 2, the strip 34 lies on the outside of the handle.
  • the link includes first and second saddle pieces 36, 37 which run in the slot and retain the strip 34 on the plate 30. Latching surfaces 39 and a degree of resilience are provided so that the strip latches to the handle at each extreme of its movement, but unlatches upon application of pressure and movement to the button 15.
  • the link 14 is bifurcated at its distal end to form left and right arms 40, 41 which extend respectively to the left and right sides of the cartridge 11.
  • a claw 42 On the distal end of the arm 40 is a claw 42 (best shown in rig. 9) which engages with a latch surface 43 of the cartridge for rotary movement of the cartridge on the claw 42 at the surface 43.
  • a shell bearing surface 53 on the cartridge co-operates with a bearing surface 54 on the arm 40 (see rig. 10).
  • a hook 46 at the left hand side of the cartridge 11 engages with an internal surface of the channel end 31 of the handle 10 to rotate the cartridge to the initial shaving disposition during movement of the button 15 from the proximal to the distal end of the slot 16.
  • a corresponding hook (not shown) is present at the other end of the cartridge, and co-operates in the sane way with the handle.
  • the link 14 also has a pair of leaf springs, that is, a left hand spring 471 which extends along the back of the arm 40 and a right hand spring 472 which extends along the back of the arm 41.
  • Each spring has at its outer end a pressure pad 48 which is pressed by the resilience of the leaf on to a camming surface 49 of the cartridge 11, in the direction of arrow f.
  • rotation of the cartridge from the Fig. 11 starting position to the Fig. 14 deflected position drives the springs back and increases the biasing force on the cartridge 11 tending to return it to the Fig. 11 position as soon as it is permitted to do so.
  • the springs provide a return force on the cartridge 11 which acts to return the cartridge 11 to its starting position whenever it is deflected from that position.
  • the tandem blades 50, 51 of the cartridge are visible in the sections along B-B and C-C. As is known per se, these blades can be mounted resiliently, to be deflected by the skin surface being shaved, as shaving pressures vary in use of the razor.
  • the cartridge may incorporate a hydrophilic lubricating strip 52, as is also known per se.
  • the cartridge includes all of the cap surface, guard surface and blade(s). Because the whole cartridge moves between the shaving and retracted positions, there is accordingly no relative movement between the components of the cartridge during this cartridge movement.
  • the simplicity of design of the illustrated embodiments open up possibilities for using a wide range of cartridge designs including those with spring-loaded tandem blades.
  • the embodiments also provide a good basis for designs which use replaceable shaving cartridges with a permanent handle. It will be appreciated that manipulation of the button 15 can be done repeatedly without any danger of accidental contact damage to the shaving blade edges, because the button 15 is so far from the edges and is on the backface of the handle.

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

Claims (14)

  1. Rasoir comprenant un manche (10), un ensemble de lame de rasoir (11) comportant un capuchon (20) et une garde (22) avec au moins une lame (50, 51) interposée entre eux, et un élément formant écran (23, 33) sur ledit manche pour former un écran pour ladite au moins une lame (50, 51), ledit ensemble de lame de rasoir étant mobile par rapport au manche entre une position de rasage et une position de non-rasage dans laquelle le fil de coupe de ladite au moins une lame (50, 51) est protégé, ledit ensemble de lame de rasoir (11) étant mobile jusque dans ladite position de non-rasage derrière ledit élément formant écran (23) sans changer la géométrie de rasage définie par les positions relatives entre ledit capuchon (20), ladite garde (22), et ladite au moins une lame (50, 51), caractérisé en ce que ledit ensemble de lame de rasoir a la forme d'une unité de rasage rétractable, et en ce qu'il est prévu un actionneur sur le manche (10) et accouplé à l'unité de rasage afin de faire rétracter l'unité de rasage soit en sortie depuis derrière ledit élément formant écran jusqu'à ladite position de rasage, soit en retour derrière ledit élément formant écran jusque dans ladite position de non-rasage.
  2. Rasoir selon la revendication 1, caractérisé en ce que l'actionneur inclut un élément de liaison (14) entre l'unité de rasage (11) et le manche (10).
  3. Rasoir selon la revendication 2, caractérisé en ce que l'élément de liaison (14) est flexible.
  4. Rasoir selon la revendication 2, caractérisé en ce que l'élément de liaison est connecté au manche (10) par une connexion à tige (15) et à fente (16).
  5. Rasoir selon la revendication 4, caractérisé en ce que la tige (15) est située sur l'élément de liaison (14) et constitue un bouton d'actionnement.
  6. Rasoir selon la revendication 1, caractérisé en ce que l'unité de rasage (11, 61) comprend un porte-cartouche (61) et une cartouche remplaçable (11) portée par le porte-cartouche (61).
  7. Rasoir selon la revendication 6, caractérisé en ce que le portecartouche (61) et la cartouche remplaçable (11) comportent chacun au moins une surface de blocage en coopération (67) afin de retenir la cartouche (11) dans le porte-cartouche (61).
  8. Rasoir selon la revendication 7, caractérisé en ce que la surface de blocage (67) du porte-cartouche est un épaulement sur un doigt de ressort élastique (66), et en ce que la surface de blocage de la cartouche est une patte.
  9. Rasoir selon la revendication 7, caractérisé en ce que ledit rasoir inclut des moyens pour inhiber la coopération des surfaces de blocage si le manche est présenté à la cartouche dans l'orientation opposée à l'orientation utile.
  10. Rasoir selon la revendication 1, caractérisé en ce que l'unité de rasage (11) est portée sur le manche (10), dans une position de rasage, pour un mouvement de pivotement entre la position de rasage au départ et des positions de rasage déviées.
  11. Rasoir selon la revendication 10, caractérisé en ce que l'unité de rasage (11) comporte des surfaces de came (49), et en ce que le manche comporte des ressorts à lame (471, 472) qui agissent contre les surfaces de came (49) pour repousser l'unité de rasage (11) jusque dans la position de rasage au départ.
  12. Rasoir selon la revendication 10, caractérisé en ce que l'unité de rasage (11) est tenue par des surfaces à griffe (42) captives dans le manche (10) pour une rotation sur le manche (10) entre la position rétractée, la position de rasage au départ, et la plage des positions de rasage déviées.
  13. Rasoir selon la revendication 1, caractérisé en ce que l'unité de rasage (11, 61) est retenue sur la poignée (10) par une paire de connexions à tige (12) et à fente (13) qui définissent également le lieu du mouvement de l'unité de rasage entre la position de rasage et la position rétractée.
  14. Rasoir comprenant un manche (10), un ensemble de lame de rasoir comportant un capuchon (20) et une garde (22), et au moins une lame (50, 51) interposée entre eux, ledit ensemble de lame de rasoir étant mobile par rapport au manche entre une position de rasage et une position de non-rasage, dans laquelle le fil de coupe de ladite au moins une lame (50, 51) est protégé, et un élément formant écran (23) sur ledit manche (10) pour protéger ladite au moins une lame (50, 51), ledit ensemble de lame de rasoir étant mobile jusque dans ladite position de non-rasage derrière ledit élément formant écran (23) sans changer la géométrie de rasage définie par les positions relatives entre ledit capuchon (20), ladite garde (22), et ladite au moins une lame (50, 51), caractérisé en ce que ledit ensemble de lame de rasoir a la forme d'une unité de rasage rétractable, en ce qu'un actionneur est prévu sur le manche (10) pour faire rétracter l'unité de rasage, en ce que l'unité de rasage est portée sur le manche (10), dans une position de rasage, pour un mouvement de pivotement entre une position de rasage de départ et des positions de rasage déviées, et en ce que l'unité de rasage est maintenue par des surfaces à griffe (42) captives dans le manche (10) pour une rotation sur le manche (10) entre la position rétractée, une position de rasage au départ, et une plage de positions de rasage déviées.
EP93900586A 1991-11-27 1992-11-20 Rasoir equipe d'un systeme protegeant les lames Expired - Lifetime EP0614408B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB919125262A GB9125262D0 (en) 1991-11-27 1991-11-27 Razor with blade protection means
GB9125262 1991-11-27
PCT/US1992/010054 WO1993010946A1 (fr) 1991-11-27 1992-11-20 Rasoir equipe d'un systeme protegeant les lames

Publications (3)

Publication Number Publication Date
EP0614408A1 EP0614408A1 (fr) 1994-09-14
EP0614408A4 EP0614408A4 (fr) 1995-01-11
EP0614408B1 true EP0614408B1 (fr) 2000-01-05

Family

ID=10705351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93900586A Expired - Lifetime EP0614408B1 (fr) 1991-11-27 1992-11-20 Rasoir equipe d'un systeme protegeant les lames

Country Status (9)

Country Link
EP (1) EP0614408B1 (fr)
JP (1) JPH07501254A (fr)
AU (1) AU670423B2 (fr)
BR (1) BR9206820A (fr)
CA (1) CA2124859C (fr)
DE (1) DE69327518D1 (fr)
GB (1) GB9125262D0 (fr)
IN (1) IN186985B (fr)
WO (1) WO1993010946A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5787586A (en) * 1996-04-10 1998-08-04 The Gillette Company Shaving system and method
US5661907A (en) * 1996-04-10 1997-09-02 The Gillette Company Razor blade assembly
EP2366507B1 (fr) 2010-03-15 2015-05-13 The Gillette Company Cartouche de rasoir
US8732955B2 (en) * 2010-10-20 2014-05-27 The Gillette Company Shaving razor including a biasing member producing a progressively increasing cartridge return torque
US8769825B2 (en) * 2010-10-20 2014-07-08 The Gillette Company Shaving razor including a biasing member producing a progressively increasing cartridge return torque and handle geometry enhancing control during shaving
KR102009179B1 (ko) 2012-12-21 2019-08-09 빅-비올렉스 에스아 교체 가능한 카트리지를 가지는 면도기와 이러한 면도기를 위한 카트리지와 헤드 및 핸들 조립체
KR101977753B1 (ko) * 2012-12-21 2019-08-28 빅-비올렉스 에스아 교체 가능한 카트리지를 가지는 면도기와 이러한 면도기를 위한 카트리지와 헤드 및 핸들 조립체

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938247A (en) * 1974-03-05 1976-02-17 The Gillette Company Shaving system with pivotal head
GB1565415A (en) * 1978-01-25 1980-04-23 Gillette Co Safety razors
GB2107236B (en) * 1981-05-19 1985-07-31 Wilkinson Sword Ltd Razors and shaving units for razors
NZ202924A (en) * 1982-01-27 1986-06-11 Wilkinson Sword Ltd A razor blade assembly
GB2113594B (en) * 1982-01-27 1985-09-18 Wilkinson Sword Ltd A razor blade assembley
US4785534A (en) * 1987-12-07 1988-11-22 The Gillette Company Razor

Also Published As

Publication number Publication date
AU3221093A (en) 1993-06-28
WO1993010946A1 (fr) 1993-06-10
CA2124859C (fr) 1998-10-13
EP0614408A1 (fr) 1994-09-14
CA2124859A1 (fr) 1993-06-10
EP0614408A4 (fr) 1995-01-11
IN186985B (fr) 2001-12-22
GB9125262D0 (en) 1992-01-29
JPH07501254A (ja) 1995-02-09
BR9206820A (pt) 1995-05-16
DE69327518D1 (de) 2000-02-10
AU670423B2 (en) 1996-07-18

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