EP0614408A1 - Rasoir equipe d'un systeme protegeant les lames - Google Patents

Rasoir equipe d'un systeme protegeant les lames

Info

Publication number
EP0614408A1
EP0614408A1 EP93900586A EP93900586A EP0614408A1 EP 0614408 A1 EP0614408 A1 EP 0614408A1 EP 93900586 A EP93900586 A EP 93900586A EP 93900586 A EP93900586 A EP 93900586A EP 0614408 A1 EP0614408 A1 EP 0614408A1
Authority
EP
European Patent Office
Prior art keywords
shaving
razor
handle
cartridge
unit
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
EP93900586A
Other languages
German (de)
English (en)
Other versions
EP0614408A4 (fr
EP0614408B1 (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

Links

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 comprising a handle, and a shaving unit which includes a cap, a guard and at least one shaving blade, the shaving unit being movable relative to the handle, between a shaving position and a non-shaving position in which the cutting edge of the or each blade is protected.
  • 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 discloses a razor having a fixed guard bar and top cap, but a blade platform which can roll 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 razor initially defined is char ⁇ acterized in that a shielding member for shielding the or each blade is provided on said handle; the shaving unit is retractable into said non-shaving position behind said shielding member; and a retractor is provided on the handle for retracting the shaving unit behind the shielding member.
  • the retracting means is manually movable in order to move the shaving unit at will between the shaving and retracted positions.
  • the retracting 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 con ⁇ tiguous 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.
  • these pin and slot connections can also serve as the guide channels.
  • Razor cartridges and shaving units are increasingly provided with a hydrophilic lubricating strip. This needs to dry out between uses.
  • the shielding member may be desirable to provide vents, such as a series of small slots.
  • vents such as a series of small slots. The provision of such holes in the shielding member has the incidental benefit of reducing the amount of plastics material needed to make the razor *
  • Fig. 1 is an exploded perspective view of a cartridge, cartridge carrier and head of a handle of a first embodiment of razor in accordance with the present invention
  • Figs. 2 and 3 are longitudinal sections through the central axis of the head of the first embodiment, with Fig. 2 showing a shaving disposition and Fig. 3 showing a retracted d., ⁇ position of the shaving cartridge;
  • Figs. 4 and 5 are a side view and top plan view respectively of a second embodiment of razor, with a retractable cartridge in its retracted position;
  • Figs. 6 and 7 are a side view and a top plan view of the razor of Figs. 4 and 5 in the extended position;
  • Figs. 8, 9 and 10 are sections A-A, B-B, C-C respectively, taken from Fig. 5; Figs. 11, 12 and 13 are corresponding sections from Fig. 7; and
  • Figs. 14, 15 and 16 are sections corresponding to those of Figs. 11 to 13 but with the shaving cartridge pushed, against a spring bias, into a swivelled shaving disposition.
  • 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
  • each finger 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 co fortaBle 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 form 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.
  • 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 Fig.
  • a shell bearing surface 53 on the cartridge co-operates with a bearing surface 54 on the arm 40 (see Fig. 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 same 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.

Landscapes

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

Abstract

Lorsqu'on n'utilise pas un rasoir pour le rasage on peut protéger les lames en tandem (50, 51) sans modifier la géométrie prédéfinie du rasage et avec un risque réduit d'endommager les lames (50, 51) et de blesser les doigts d'un utilisateur lorsqu'il manipule ledit rasoir. Pour ce faire, on utilise une cartouche (11) de rasage qui est mobile par rapport à une tige (10) du rasoir et qui peut se rétracter derrière une protection (23) formée dans la tige. Cette invention concerne également des systèmes permettant d'utiliser avec un rasoir de ce type, des cartouches de recharge (11) destinées à une tige permanente (10) comportant un support (61) de cartouche.
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 true EP0614408A1 (fr) 1994-09-14
EP0614408A4 EP0614408A4 (fr) 1995-01-11
EP0614408B1 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107236A (en) * 1981-05-19 1983-04-27 Wilkinson Sword Ltd Razors, and shaving units for razors
GB2113594A (en) * 1982-01-27 1983-08-10 Wilkinson Sword Ltd A razor blade assembly
US4785534A (en) * 1987-12-07 1988-11-22 The Gillette Company Razor

Family Cites Families (3)

* 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
NZ202924A (en) * 1982-01-27 1986-06-11 Wilkinson Sword Ltd A razor blade assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107236A (en) * 1981-05-19 1983-04-27 Wilkinson Sword Ltd Razors, and shaving units for razors
GB2113594A (en) * 1982-01-27 1983-08-10 Wilkinson Sword Ltd A razor blade assembly
US4785534A (en) * 1987-12-07 1988-11-22 The Gillette Company Razor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9310946A1 *

Also Published As

Publication number Publication date
AU3221093A (en) 1993-06-28
WO1993010946A1 (fr) 1993-06-10
CA2124859C (fr) 1998-10-13
CA2124859A1 (fr) 1993-06-10
EP0614408A4 (fr) 1995-01-11
IN186985B (fr) 2001-12-22
EP0614408B1 (fr) 2000-01-05
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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