WO2019016165A1 - Manche pour rasoir de sécurité - Google Patents

Manche pour rasoir de sécurité Download PDF

Info

Publication number
WO2019016165A1
WO2019016165A1 PCT/EP2018/069317 EP2018069317W WO2019016165A1 WO 2019016165 A1 WO2019016165 A1 WO 2019016165A1 EP 2018069317 W EP2018069317 W EP 2018069317W WO 2019016165 A1 WO2019016165 A1 WO 2019016165A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade unit
safety razor
ribbon
post
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.)
Ceased
Application number
PCT/EP2018/069317
Other languages
English (en)
Inventor
Peter Maurer
Alexander Krümke
Michaela Kohut
Arne Schultchen
Andre Feldmann
Christine Jung
Armin Warnecke
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.)
Beiersdorf AG
Original Assignee
Beiersdorf AG
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 Beiersdorf AG filed Critical Beiersdorf AG
Publication of WO2019016165A1 publication Critical patent/WO2019016165A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B26B21/40—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
    • B26B21/40—Details or accessories
    • B26B21/44—Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
    • 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
    • B26B21/522—Ergonomic details, e.g. shape, ribs or rubber parts

Definitions

  • Embodiments described herein relate to a handle for a safety razor, and a safety razor including such handle.
  • Safety razors are typically composed of a blade unit (or cartridge) connected, either detachably or fixedly (permanently fixed or integrated), to a handle.
  • a safety razor with a detachable and disposable blade unit is known as a safety razor system.
  • Blade units are known which have one or more parallel blades perpendicular to the shaving direction and thus to the handle, each defining a cutting edge, with blade unit elements positioned in front of and behind (rear of) the cutting edge(s) (referred to as a "guard” and a “cap”, respectively) in a shaving direction.
  • a shaving aid such as a thin lubricating strip, is often incorporated into one or both of these blade unit elements to improve shaving performance and lubricating treatment of the user's skin.
  • razor handles are simple elongated structure. It would be desirable to provide razors with alternative handle designs.
  • a safety razor or safety razor system comprising a handle, and a blade unit, wherein: the handle is constructed from a flexible ribbon of material with attachment portions at either end of the ribbon; and the blade unit comprises a blade housing and a plurality of blades disposed within the blade housing to expose respective cutting edges suitable for shaving; wherein the ends of the ribbon are attachable together and to the blade unit using a retention structure to form a loop as the handle.
  • the ribbon shaped handle can be easily held in, and can flexibly conform to, the palm of the user's hand for ergonomic use of the safety razor. Furthermore, the handle allows the safety razor to be hung from a hook.
  • the ends of the ribbon can be attached to each other and to the blade unit in many different ways, and can include any suitable chemical, adhesive and/or mechanical connection.
  • at least one of the attachment portions of the flexible ribbon includes a through hole and the retention structure includes a post to pass through the through hole to retain the ends together.
  • one attachment portion can have the post and the other attachment portion can have the through hole.
  • the blade unit or a top plate can further comprise the post which attaches to the top plate or blade unit respectively to retain the ends of the ribbon and the blade unit together.
  • the top plate or blade unit is to clip over the post of the blade unit or top plate.
  • the connection need not be a clip, and the entire structure could be glued together.
  • the top plate and post or blade unit and post comprise complementary attachment means, in the form of shaping of a blind hole in the top plate or blade unit to match corresponding shaping around the circumference of the post.
  • An alternative construction may use a friction fit.
  • the retention structure comprises a top plate and a bottom plate, to be joined together by the post and to retain the end of the ribbon and the blade unit.
  • the retention structure allows pivoting movement of the blade unit relative to the handle, for example the post may move within the through holes to give some flexibility in the connection.
  • the ends of the ribbon and blade unit may be detached from each other after use.
  • the post can be undipped from the top plate or blade unit, or both or from the top and bottom plate.
  • the ribbon may bend back on itself to stack the ends one above the other (in two vertically separated planes parallel to the shaving plane). Hence the post may extend in a direction directly towards or away from the skin of a user.
  • the ribbon is between about 15mm and about 30mm wide and preferably between about 150mm and about 300mm long, with a preferable thickness of about 1mm to about 4mm. Any of these widths, lengths or thicknesses may be combined.
  • the ribbon ends stack with the widths being laid on top of each other.
  • the ribbon is of TPE or silicone(s) or another natural or synthetic rubber material.
  • TPEs are thermoplastic elastomers, for example thermoplastic elastomers selected from the group of styrenic block copolymers (TPE-s; e.g.
  • thermoplastic oiefins TPE-o; e.g. For-Tec E
  • elastomeric alloys TPE-v or TPV; e.g. Thermolast A, Thermolast V,
  • TPU thermoplastic polyurethanes
  • thermoplastic copo!yesters TPE-E
  • thermoplastic polyamides thermoplastic polyamides and mixtures thereof.
  • silicones are polymers that include any inert, synthetic compound made up of repeating units of siloxane.
  • the ribbon has a Shore A hardness of between about 30 and about 90.
  • the ribbon is translucent or transparent.
  • the safety razor further comprises a lubrapad body provided separately from the blade unit, to extend along a guard of the blade unit and in front of the guard in use, the lubrapad body having a greatest width and/or depth in the blade direction at the guard, the body width and/or depth reducing in a smooth convex curve away from the guard to a curved front portion of the body.
  • the composition of the lubrapad can include a gliding agent.
  • Materials which may be selected as the gliding agent are: PEG-400/1 ,4-Butanediol/SMDI Copolymer, PEG- 1 15M, PEG 45M, and PEG-5M, or a combination thereof.
  • the composition of the lubrapad can include an antioxidant agent, for example Tocopherol.
  • the composition of the lubrapad can include an anti-inflammatory agent, for example aloe barbadensis leaf juice.
  • the composition of the lubrapad can include a backbone structure. Materials which may be selected as the backbone structure are: styrenic block copolymers and polystyrene, or a combination thereof.
  • the lubrapad body and blade unit comprise attachment means to attach them together whilst allowing relative movement, such as flexible projections (tabs) from a front surface of the guard, which are to be housed in recesses in a surface portion of the lubrapad body which is directly facing the guard front surface.
  • attachment means such as flexible projections (tabs) from a front surface of the guard, which are to be housed in recesses in a surface portion of the lubrapad body which is directly facing the guard front surface.
  • the lubrapad body may be connected to the handle using a post arrangement as previously described for the blade unit.
  • kits comprising a safety razor system according to any of the preceding claims in disassembled state and packaging contain the safety razor system.
  • the flexible ribbon design allows the disassembled safety razor system to be provided in flat packaging that is desirable for efficient shipping and that can be simply stacked or hanged in racks.
  • the kit comprises more than one ribbon, and more than one blade unit wherein the ribbons preferably differ in any of colour, stiffness, length or width and the blade units preferably differ in any of size, shape, lubricating strips (lubrapads) included and number of blades.
  • lubrapads lubricating strips
  • Figure 1 is a perspective view of a safety razor from underneath (skin side);
  • FIG 2 is a side view of a safety razor shown in Figure 1 , with a detailed view of the blade unit and attachment portions of the handle;
  • Figure 3 is a bottom view (skin-contacting side) of the safety razor shown in Figure 1 ;
  • Figure 4 is a rear view (in the same direction as the shaving direction) of the safety razor shown in Figure 1 ;
  • Figure 5 is a perspective view of another safety razor from underneath (skin side);
  • Figure 6 is a side view of a safety razor shown in Figure 5;
  • Figure 7 is a bottom view (skin-contacting side) of the safety razor shown in Figure 5;
  • Figure 8 is a rear view (in the same direction as the shaving direction) of the safety razor shown in Figure 5;
  • Figure 9 is a perspective view of another safety razor from underneath (skin side);
  • Figure 10 is a side view of a safety razor shown in Figure 9, with a detailed view of the blade unit and attachment portions of the handle;
  • Figure 11 is a top view of the safety razor shown in Figure 9;
  • Figure 12 is a bottom view (skin-contacting side) of the safety razor shown in Figure 9;
  • Figure 13 is a rear view (in the same direction as the shaving direction) of the safety razor shown in Figure 9;
  • Figure 14 is a front view (in the direction opposite the shaving direction) of the safety razor shown in Figure 9;
  • Figure 15 is a perspective view of part of another safety razor from underneath (skin side);
  • Figure 16 is a perspective view from above of the safety razor of Figure 15;
  • Figure 17 shows a connecting structure between blade unit and lubrapad of the safety razor shown in Figure 15;
  • Figure 18 shows another safety razor in use
  • Figure 19 shows a safety razor in a disassembled (packaged) state.
  • the term "underneath” or “bottom” is used to describe features of the blade unit or lubrapad that are positioned on the skin-contacting side of the blade unit or lubrapad (i.e., on a shaving-side or underneath of the blade unit or iubrapad), and the term “top” is used to describe features of the blade unit or lubrapad that are positioned on a side opposite the skin-contacting side of the blade unit or lubrapad (i.e., on a user side or on top of the blade unit or lubrapad).
  • FIGS. 1 to 18, are views of a safety razor or safety razor system including a handle, according to embodiments.
  • the described embodiments can be differentiated from one another by, among other things, how the blade unit 10 and lubrapad 12 are attached to each other and/or to the handle 50.
  • the safety razor 100 shown in Figures 1 to 4 comprises a handle 50 and a blade unit 10.
  • the blade unit 10 comprises a blade housing 14 and a plurality of blades 16 disposed within the blade housing 14 to expose respective cutting edges.
  • the number of blades 16 can be, for example, four or five, though it can be fewer or more than this.
  • the guard 18 is in front of the blades 16 and the cap 20 is to the rear of the blades 16 and, in this particular example, each have a shaving aid such as a lubricating/moisturizing strip.
  • the handle is constructed from a flexible ribbon 51 of material with attachment portions 52, 53 at either end of the ribbon 51.
  • the attachment portions 52, 53 are depicted in more detail in Figure 2 in a connected state.
  • the upper attachment portion 53 has a post 57 (shown as a dashed line) that passes via a through hole of the lower attachment portion 52 into a recess of the blade unit 0.
  • the post 57 can permanently fasten the blade unit 10 and the handle 50 together, for example if the post 57 is glued in place at the time of insertion.
  • the post 57 can temporarily fasten the blade unit 10 and the handle 50 together, for example if the free end of the post 57 makes a friction fit, is threaded, or otherwise secured to the blade unit 10.
  • the post 57 does not have to extend ali the way into the blade unit 10.
  • the blade unit 10 can be glued (or otherwise attached) to the lower attachment portion 52 and the post 57 of the upper attachment portion 52 can be glued or make a friction fit, be threaded, or otherwise secured to the through hole in the lower attachment portion 52. It will appreciated that the configuration can be reversed such that the blade unit 10 has the post 57 that passes via a through hold of the lower attachment portion 52 to the upper attachment portion 53, or the lower and upper attachment portions 52, 53 can be glued together and the post 57 can make a friction fit, be threaded, or otherwise secured with the lower attachment portion 52.
  • the surface of the upper attachment portion 53 above the blade housing 10 can have dimples, ridges or other texturing (shown in Figure 2) to allow the user to more easily grip the handle 50 for example with one or more fingers.
  • Figures 5 to 8 show another safety razor 100 which generally has the same construction as that shown in Figures 1 to 4 ⁇ with like reference numbers denoting like features), except that here the handle can be made of different materials.
  • the attachment portions 52, 53 and adjacent portions 59, 60 can be made of a different material from the rest of the ribbon 51.
  • the connecting mechanism is not shown.
  • Figure 9 shows a safety razor with a flat lubrapad 12 provided in front of the guard in the shaving direction.
  • the lubrapad has a substantially semi-circular form and is provided without an external frame.
  • Figures 10 to 14 show a safety razor 100 which generally has the same construction as that shown in Figures 1 to 4 (with like reference numbers denoting like features), except that here the retention structure includes two posts 57 that extend from a top plate 58 to connect to the blade unit 10 and lubrapad 22, respectively, via through- holes of attachment portions 52, 53.
  • the structure shown in Figure 10 can be reversed such that both posts extend from the blade unit 10 and lubrapad 12 (or a base of the lubrapad 12), or alternatively one post 57 can extend from the top plate 58 and the other from the blade unit 10.
  • the posts 57 can be permanently or temporarily fixed in a similar manner as described with reference to Figures 1 to 4.
  • the structure shown in Figure 10 can be constructed with only one post 57, for example if the lubrapad body 22 is glued to the lower attachment portion 52 or if the lubrapad body 22 is connected to the blade unit 10 (as will be described with reference to Figure 15).
  • the post(s) 57 can be secured by threading, friction fit, or other manner, thus allowing the blade unit 10 and lubrapad 12 to be detached from the handle.
  • the posts 57 can be dispensed with entirely if the top cap 58, attachment portions 52, 53, blade unit 10, and lubrapad body 22 are glued together. Other combinations will be apparent to the skilled person.
  • FIGS 15 and 16 are perspective views from underneath and above the blade unit 10 respectively and Iubrapad 12 according to another embodiment with a different form of iubrapad.
  • the Iubrapad 12 comprises a iubrapad body 22 comprising solid lubricating materia!.
  • the Iubrapad body 22 has a first surface portion 38 which directly faces a front surface 40 of the guard 18, a second (bottom, gliding or skin-contacting) surface portion 44 adjacent to the skin-contacting side of the blade unit 10, and a third (top) surface portion 46 generally opposite the second surface portion 44.
  • the second surface portion 44 lubricates the skin of a user and the third surface portion 46 is directed away from the skin of the user towards the handle 50.
  • the first, second and third surface portions 38, 44, 46 of the Iubrapad body 22 generally define a wedge having a curved front portion (semi-circular edge) 24 with the second surface portion 44 curving in a smooth convex curve towards the curved front portion 24.
  • the second surface portion 44 can be continuously curved toward the front portion 24 or can include a flat portion before curving towards the front portion 24.
  • the greatest length of the third surface portion 46 in the shaving direction can be at least twice or three times that of the height of the first surface portion 38 in a direction perpendicular to the shaving plane.
  • Figure 17 shows the blade unit 10 and the Iubrapad 12 from underneath and separated from one another for greater clarity.
  • the blade unit 10 has projections 34 extending from a front surface 40 of the guard 18. (The reader should recall that "front” means facing the shaving direction.)
  • the projections 34 are (at least partly) housed in recesses 36 in a surface portion 38 of the Iubrapad 22 which is directly facing the front surface 40 of the guard 8.
  • the projections 34 and recess 36 are shown as rectangular in shape. These can be friction fit, threaded, glued, overmolded, or otherwise secured together. Other types of projections, for example spikes, hooks or any other suitable shapes, can be provided alternatively.
  • Figure 18 shows a still further embodiment of the safety razor in use.
  • the blade unit or Iubrapad includes two narrower iubrapads, one to the guard side and one to the cap side. There is no top plate.
  • Figure 19 shows a kit, including three flattened ribbons 51 , which may be of different colours and/or flexibility and/or size, each with a through hole at each end. Five different blade units 10 are provided, which may have different shaving characteristics and/or colours. They may have different shapes and/or sizes and for lubricating strips, but are shown as identical for simplicity. Furthermore, three different top plates 58 are provided.
  • the parts may be packaged on a semi-rigid (for example cardboard or plastic sheet) backer including a hanging hole, within a blister, or wrapped in a plastic film.
  • a semi-rigid for example cardboard or plastic sheet
  • the user can select a different ribbon and blade unit and top plate every time they shave, according to the area to be shaved or daily preference.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne un rasoir de sécurité (100) comprenant un manche (50), et un ensemble lame (10), le manche étant constitué d'un ruban souple (51) de matériau avec des parties de fixation (52, 53) à chaque extrémité du ruban ; et l'ensemble lame comprenant un logement de lames (14) et une pluralité de lames (16) disposées à l'intérieur du logement de lames pour rendre visibles des bords de coupe respectifs conçus pour le rasage ; les extrémités du ruban pouvant être attachées ensemble et à l'ensemble lame à l'aide d'une structure de retenue (54) pour former une boucle constituant le manche.
PCT/EP2018/069317 2017-07-17 2018-07-16 Manche pour rasoir de sécurité Ceased WO2019016165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017116066.3A DE102017116066A1 (de) 2017-07-17 2017-07-17 Griff für Sicherheitsrasierer
DE102017116066.3 2017-07-17

Publications (1)

Publication Number Publication Date
WO2019016165A1 true WO2019016165A1 (fr) 2019-01-24

Family

ID=62981202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/069317 Ceased WO2019016165A1 (fr) 2017-07-17 2018-07-16 Manche pour rasoir de sécurité

Country Status (2)

Country Link
DE (1) DE102017116066A1 (fr)
WO (1) WO2019016165A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636558A1 (fr) * 1988-09-20 1990-03-23 Rotbard Sharon Rasoir mecanique perfectionne
WO1999052689A1 (fr) * 1998-04-16 1999-10-21 Greene Todd M Rasoir multi-usage
US20110283540A1 (en) * 2010-05-20 2011-11-24 Edward Brian Wetteroff Back shaving device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB123509A (en) * 1918-02-20 1919-02-27 Gugy Freres Razor.
US1917812A (en) * 1932-08-22 1933-07-11 Wallace W Robinson Finger-hold for safety razors
JP2009039186A (ja) * 2007-08-07 2009-02-26 Masahisa Tanaami バンド付両刃型フィンガーレザー
GB2487915B (en) * 2011-02-07 2015-06-24 Kenneth Moss A razor
EP2962816A1 (fr) * 2014-06-30 2016-01-06 The Gillette Company Dispositif d'épilation avec distribution de fluide jetable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636558A1 (fr) * 1988-09-20 1990-03-23 Rotbard Sharon Rasoir mecanique perfectionne
WO1999052689A1 (fr) * 1998-04-16 1999-10-21 Greene Todd M Rasoir multi-usage
US20110283540A1 (en) * 2010-05-20 2011-11-24 Edward Brian Wetteroff Back shaving device

Also Published As

Publication number Publication date
DE102017116066A1 (de) 2019-01-17

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