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EP0559130A1 - Tête de rasage pour rasoir mécanique - Google Patents

Tête de rasage pour rasoir mécanique Download PDF

Info

Publication number
EP0559130A1
EP0559130A1 EP93103280A EP93103280A EP0559130A1 EP 0559130 A1 EP0559130 A1 EP 0559130A1 EP 93103280 A EP93103280 A EP 93103280A EP 93103280 A EP93103280 A EP 93103280A EP 0559130 A1 EP0559130 A1 EP 0559130A1
Authority
EP
European Patent Office
Prior art keywords
razor
blade unit
wires
head according
razor 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.)
Granted
Application number
EP93103280A
Other languages
German (de)
English (en)
Other versions
EP0559130B1 (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 EP0559130A1 publication Critical patent/EP0559130A1/fr
Application granted granted Critical
Publication of EP0559130B1 publication Critical patent/EP0559130B1/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
    • B26B21/4006—Blades or blade units with discontinuous cutting edges, e.g. wire-wrapped, notches

Definitions

  • the invention relates to a razor head, in particular a razor blade unit, which is arranged at the front end of a handle, wherein the razor blade unit is designed as a single or double razor blade and is fixed in a plastic body and in the region of the top of the razor head, which has a surface for attacking the skin of the user forms, protective wires extend at a distance from one another and parallel to the shaving direction over the cutting edges of the razor blade unit.
  • a razor head which carries the single or double razor blade, is arranged at the front end of a handle.
  • the razor head can be integrally formed with the handle in the form of a molded plastic part. If the razor head is designed separately from the handle and can be exchangeably attached to it by means of a corresponding mechanism, one speaks of a so-called razor blade unit, in which a single or double razor blade is embedded in a plastic housing so that it cannot be detached.
  • a razor head in the form of such a razor blade unit is disclosed in EP 0 389 007.
  • a wire with a number of adjacent turns is wound around the plastic body in which the double razor blade is embedded.
  • the individual turns extend at a distance from one another and parallel to the shaving direction, while the turns extend on the underside of the plastic body at an angle thereto.
  • This characteristic winding protective wire improves the shaving characteristics.
  • the wire prevents, for example, the formation of wrinkles or swelling of the skin, so that injuries to the skin can also be prevented in areas which are not perceptible to the eye.
  • the wire reduces the actual shaving resistance because it reduces the frictional forces.
  • the protective wire still prevents the user from accidentally cutting himself if he improperly handles the razor blade unit.
  • the wires also extend into the area of the razor blade unit, namely the area in which the razor blade unit must be attached with the handle. Accordingly, the turns of the wire and the fastening mechanism interfere with each other. In addition, there is a risk with the wire windings of this known razor blade unit that the wire can move to the side. In addition, the wire wrapping of the blade units is cumbersome and does not lead to rapid mass production.
  • the object of the invention is to provide a razor head, in particular a razor blade unit of a wet shaver of the type specified at the beginning To create type that provides an improved embodiment of the protective wires.
  • the invention proposes that a row of wires be distributed over the length of the blade unit and directly connected to the blade unit.
  • the shaver head of the present invention is thus primarily characterized in that the protective wires are attached to the blade unit in a manner that does not involve the laborious process of having to wind a single wire around the blade unit several times.
  • a razor head, and in particular a razor blade unit, which is designed according to the teaching of the present invention has the advantage that the underside of the plastic body remains free, so that the handle can be attached to the underside of the razor head without difficulty. Accordingly, all possible fastening systems can be implemented, in particular in the case of razor blade units. In addition, an alignment of the attached wires according to the invention prevents a lateral displacement of these wires.
  • conventional wires be welded to the surface of the blade or blades. These wires can be fixed at the desired distance over the cover of the blade unit and fixed in this position by a simple welding point.
  • the protective wires are made of weld metal or adhesive as a pearl cord formed on the surface of the blade or blades. In this embodiment there is no need to use wires or grids.
  • the protective wires can be attached directly to the razor blade unit or, if desired, to the support unit. This eliminates the need for any other fastenings.
  • a double razor blade it is proposed in a further development that the two razor blades are attached to both sides of a spacer arranged therebetween, the razor blade / spacer / razor blade unit thus formed being placed essentially from above on a platform or carrier unit of the plastic body .
  • the advantages noted in connection with a single razor blade are also applicable to this embodiment.
  • the razor head has a rear cap and a front protective strip, which is preferably provided with a stepped, longitudinal profile
  • the protective wires in the area of the protective strip and the covering cap are guided under these components and covered by them. Accordingly, the protective wires extend between the protective strip or the cover cap and the actual plastic body with its blade support unit.
  • the function of the front protective strip in particular with its stepped, longitudinally extending profile, has not been impaired by the wire areas which reduce friction, since the front protective strip is required in particular to pretension the skin.
  • the protective strip and the cover cap are connected to one another via side walls, while a central opening remains in the region of the cutting edge or edges of the razor blade unit.
  • This upper part of the plastic body designed in this way is placed on the base part of the plastic body with its razor blade unit containing the protective wires, which is fixed to a support unit of the base part, and then securely connected to this base part.
  • this one-piece upper part which is formed from the front protective strip, the rear cover cap and the side strips, a simple construction of the razor head and in particular of the razor blade unit is created.
  • the single or in particular the double razor blade is fixed in the support unit of the base part, it is only necessary to place the upper part onto the base part essentially from above and to connect it securely. This can be accomplished, for example, by meshing or by any other suitable way.
  • the use of wires is crucial. It is also crucial that the space between the wires and the thickness of the wires is not too large and not too small, because if the distance and the thickness are too great, the desired safety and comfort cannot be achieved and at one short distance and too thick the desired shortness of shaving cannot be achieved.
  • a razor head in the form of a so-called razor blade unit for a wet or safety razor which can be attached to the front end of a handle, not shown, consists of a plastic body 1 in which two razor blades 2 are arranged, the cutting edges 3 of which run parallel and offset one behind the other.
  • the plastic body 1 consists of a base part 4 with the razor blades 2 and an upper part 5 placed on this base part 4.
  • the base part 4 of the plastic body 1 initially has feed-through slots 6 in the interior.
  • the base part 4 defines a platform or carrying unit 7 for the razor blades 2.
  • a spacer 8 is sandwiched between the two razor blades 2, the two razor blades 2 being firmly connected to this spacer 8.
  • These components thus form a razor blade / spacer / razor blade unit 9 which is placed on the carrying unit 7 of the base part 4 from above.
  • the spacer 8 comprises projections 17 which extend from the rear and the two ends of the spacer 8 and which are accommodated in indentations or slots 10 in the sides of the base part 4.
  • the upper part 5 is a one-piece plastic component and initially has a front protective strip 18. This extends parallel to the cutting edges 3 of the razor blades 2 and has a step-like, longitudinally extending profile 19.
  • a cover cap 20 is provided in the rear area.
  • This has a sliding strip 21 on the upper side.
  • This slide strip 21 is convexly curved and initially has a first slide strip leg 22 and a second slide strip leg 22 ′, which is angled at an angle thereto, and which are connected to one another by an arc 23.
  • the angle between the sliding strip legs 22, 22 ' can also be rectangular or obtuse.
  • the two sliding strip legs 22, 22 ' are essentially flat or slightly convex. The production of such a sliding strip 21 is possible by means of a special hot molding process.
  • this sliding strip 21 is that it also becomes more effective at the end of the razor blade unit. Since the skin is stretched and pressed in during shaving, a swelling forms at the end of the razor blade unit. The sliding strip 21 shaped in the radius slides better in this area and thus increases the gentle shave.
  • the front protective strip 18 and the rear cover cap 20 are connected to one another via side walls 24.
  • An opening 25 is arranged between these components in the region of the cutting edges 3 of the razor blades 2, as can be seen particularly from the top view in FIG. 1.
  • wire-like wires 111 are fastened to the blades 2 by means of welding spots 106.
  • the wire wires 111 can be wrapped around the blade unit using holders that set the distance before welding.
  • the desired number of individual wires can be placed on the upper part of the unit 9 and welded and cut directly during the assembly of the blade unit, so that no positioning protrusions are required.
  • the wires are formed as pearl cords 211 directly on the surface of the blade or blades.
  • These pearl cords 211 can result from the fact that molten metal is deposited during an arc welding process or also because a suitable adhesive or plastic is deposited.
  • the main goal is to form a tight pearl cord that attaches to the blade surface and does not wear away during shaving. Using this method, the cumbersome process of assembling the Wire or the grid with the blade unit completely avoided, which reduces the manufacturing costs.
  • the wires 11 are arranged at a preferred distance from one another and have a preferred thickness so that the goals of comfort, safety and brevity can be achieved.
  • the preferred distance is at least 2 mm and the preferred thickness is at least 0.1 mm.
  • appropriate distances of 3 mm and thicknesses of 0.15 mm are preferred.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
EP93103280A 1992-03-06 1993-03-02 Tête de rasage pour rasoir mécanique Expired - Lifetime EP0559130B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9204825 1992-03-06
GB9204825A GB2265327B (en) 1992-03-06 1992-03-06 Razor head of a wet razor

Publications (2)

Publication Number Publication Date
EP0559130A1 true EP0559130A1 (fr) 1993-09-08
EP0559130B1 EP0559130B1 (fr) 1996-06-12

Family

ID=10711580

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93103279A Expired - Lifetime EP0559129B1 (fr) 1992-03-06 1993-03-02 Tête de rasage pour rasoir mécanique
EP93103280A Expired - Lifetime EP0559130B1 (fr) 1992-03-06 1993-03-02 Tête de rasage pour rasoir mécanique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP93103279A Expired - Lifetime EP0559129B1 (fr) 1992-03-06 1993-03-02 Tête de rasage pour rasoir mécanique

Country Status (5)

Country Link
US (1) US5447084A (fr)
EP (2) EP0559129B1 (fr)
DE (3) DE9210043U1 (fr)
ES (2) ES2088177T3 (fr)
GB (2) GB2265327B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005948A1 (fr) * 1994-08-23 1996-02-29 Warner-Lambert Company Tete de rasoir a lames multiples et a performances ameliorees
WO1996030176A1 (fr) * 1995-03-31 1996-10-03 Warner-Lambert Company Lames de rasoir rasant de plus pres
US5630275A (en) * 1994-08-23 1997-05-20 Warner-Lambert Company Multi-blade razor head with improved performance
WO2000012273A2 (fr) 1998-08-31 2000-03-09 Koninklijke Philips Electronics N.V. Rasoir humide induisant la retraction du poil

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265328B (en) * 1992-03-13 1995-05-10 Wilkinson Sword Gmbh Razor head of a wet razor
US6550141B1 (en) * 2000-07-28 2003-04-22 Warner-Lambert Company Razor heads with intermediate guard elements
GB2370010A (en) * 2000-12-13 2002-06-19 Andy J M Craig Beard styler
US20020095791A1 (en) * 2001-01-23 2002-07-25 Pennella Andrew J. Razor blade cartridge having guard ribs and methods therefor
US20180333879A1 (en) * 2017-05-19 2018-11-22 Blake Squires Spacer for razor blade with vibration

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909989A1 (de) * 1968-02-28 1970-01-22 Philip Morris Inc Schneidklinge mit damit verbundenem Klingenschutz
US3750285A (en) * 1970-07-06 1973-08-07 G Michelson Guarded razor edge apparatus
US4094066A (en) * 1977-03-08 1978-06-13 Daniel Jr Donald S Surgical razor blade with integral guard
WO1989009121A1 (fr) * 1988-03-22 1989-10-05 David John Fenn Rasoir de securite
EP0389007A1 (fr) * 1987-01-03 1990-09-26 Wilkinson Sword Gesellschaft mit beschränkter Haftung Appareil pour rasage humide
EP0453717A1 (fr) * 1990-04-27 1991-10-30 Wilkinson Sword Gesellschaft mit beschränkter Haftung Tête de rasage, particulièrement une unité de lames pour rasoir mécanique
DE9210042U1 (de) * 1992-03-13 1992-10-01 Wilkinson Sword GmbH, 5650 Solingen Rasierapparatekopf eines Naßrasierapparates

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1846622A (en) * 1930-11-15 1932-02-23 Gillette Safety Razor Co Safety blade
ES161678Y (es) * 1970-09-08 1971-06-16 Antunez Coll Hoja de afeitar.
GB1542299A (en) * 1976-03-23 1979-03-14 Warner Lambert Co Blade shields
US4211006A (en) * 1979-01-02 1980-07-08 Warner-Lambert Company Guarded razor blade
DE8711506U1 (de) * 1987-08-25 1987-10-08 Wilkinson Sword GmbH, 5650 Solingen Rasierklingeneinheit
US4914817A (en) * 1988-07-01 1990-04-10 The Gillette Company Razor head with riblets
DE9004761U1 (de) * 1990-04-27 1991-08-29 Wilkinson Sword GmbH, 5650 Solingen Rasierapparatekopf, insbesondere Rasierklingeneinheit, eines Naßrasierapparates
DE9004762U1 (de) * 1990-04-27 1991-08-29 Wilkinson Sword GmbH, 5650 Solingen Rasierapparatekopf, insbesondere Rasierklingeneinheit, eines Naßrasierapparates

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1909989A1 (de) * 1968-02-28 1970-01-22 Philip Morris Inc Schneidklinge mit damit verbundenem Klingenschutz
US3750285A (en) * 1970-07-06 1973-08-07 G Michelson Guarded razor edge apparatus
US4094066A (en) * 1977-03-08 1978-06-13 Daniel Jr Donald S Surgical razor blade with integral guard
EP0389007A1 (fr) * 1987-01-03 1990-09-26 Wilkinson Sword Gesellschaft mit beschränkter Haftung Appareil pour rasage humide
WO1989009121A1 (fr) * 1988-03-22 1989-10-05 David John Fenn Rasoir de securite
EP0453717A1 (fr) * 1990-04-27 1991-10-30 Wilkinson Sword Gesellschaft mit beschränkter Haftung Tête de rasage, particulièrement une unité de lames pour rasoir mécanique
DE9210042U1 (de) * 1992-03-13 1992-10-01 Wilkinson Sword GmbH, 5650 Solingen Rasierapparatekopf eines Naßrasierapparates

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005948A1 (fr) * 1994-08-23 1996-02-29 Warner-Lambert Company Tete de rasoir a lames multiples et a performances ameliorees
US5630275A (en) * 1994-08-23 1997-05-20 Warner-Lambert Company Multi-blade razor head with improved performance
AU681041B2 (en) * 1994-08-23 1997-08-14 Warner-Lambert Company Multi-blade razor head with improved performance
WO1996030176A1 (fr) * 1995-03-31 1996-10-03 Warner-Lambert Company Lames de rasoir rasant de plus pres
WO2000012273A2 (fr) 1998-08-31 2000-03-09 Koninklijke Philips Electronics N.V. Rasoir humide induisant la retraction du poil
US6418622B2 (en) 1998-08-31 2002-07-16 Koninklijke Philips Electronics N.V. Wet shaver with retractile action

Also Published As

Publication number Publication date
GB2265327A (en) 1993-09-29
DE59302860D1 (de) 1996-07-18
US5447084A (en) 1995-09-05
EP0559130B1 (fr) 1996-06-12
DE9210043U1 (de) 1992-10-01
ES2088177T3 (es) 1996-08-01
EP0559129A1 (fr) 1993-09-08
DE59302859D1 (de) 1996-07-18
GB9510425D0 (en) 1995-07-19
GB9204825D0 (en) 1992-04-22
GB2288760B (en) 1996-01-03
EP0559129B1 (fr) 1996-06-12
GB2288760A (en) 1995-11-01
GB2265327B (en) 1996-01-03
ES2088176T3 (es) 1996-08-01

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