EP0416233B1 - Razor head of a wet-razor - Google Patents
Razor head of a wet-razor Download PDFInfo
- Publication number
- EP0416233B1 EP0416233B1 EP90112442A EP90112442A EP0416233B1 EP 0416233 B1 EP0416233 B1 EP 0416233B1 EP 90112442 A EP90112442 A EP 90112442A EP 90112442 A EP90112442 A EP 90112442A EP 0416233 B1 EP0416233 B1 EP 0416233B1
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- EP
- European Patent Office
- Prior art keywords
- razor
- blade
- blade block
- razor head
- head according
- 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
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- 229920003169 water-soluble polymer Polymers 0.000 claims description 2
- 229920003176 water-insoluble polymer Polymers 0.000 claims 1
- 210000002105 tongue Anatomy 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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
- B26B21/227—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 with blades being resiliently mounted in the changeable unit
Definitions
- the invention relates to a razor head of a wet shaver arranged at the front end of a handle, with a body having a front guide bar and with a blade block in which a razor blade in the form of a single or double razor blade with a cutting edge parallel to the guide bar and with a top razor blade covering cap is arranged and is mounted such that it can pivot freely against a spring force with respect to the rest of the body of the razor head, which body has the guide strip, about a pivot axis parallel to the cutting edge (s), the pivot axis being behind the cutting edge (s) extends and the blade block is seen from the top in the area between the pivot axis and the guide bar down in the body.
- Such a shaver head for a wet shaver is known for example from US-A 4,461,079.
- This publication discloses a razor head arranged at the front end of a handle in the form of a so-called razor blade unit of a wet razor.
- This razor blade unit initially consists of a plastic body having a front guide bar.
- Four forward tongues are formed on this in such a way via a type of film hinge that the film hinges can be pivoted of the tongues.
- These tongues define a part of a blade block, in which a double razor blade is mounted on the tongues with the interposition of a spacer, a cover cap of the blade block being attached and riveted to the lower tongues for fixing the double razor blade.
- the connection of the blade block via the film hinges to the ordinary plastic body of the razor head is disadvantageous for two reasons.
- the blade block is pivoted based on the elastic behavior of the film hinges, so that precise guidance is not provided.
- the force is determined solely by the elastic deformability of the plastic material in the area of the film hinges. It is extremely difficult in the known razor head to inject the film hinges so thinly that on the one hand the low contact forces necessary for shaving and on the other hand the mechanical strengths necessary for assembly are achieved.
- the pivot axis lies below the lower blade level.
- the object of the invention is to further develop the razor head of a wet shaver of the type specified at the outset in such a way that the pivotable mounting of the blade block for changing the shaving angle and thus the cutting geometry is improved.
- the invention proposes that the blade block is pivotally mounted as a component separate from the body in the side walls of the body and that the pivot axis runs through the cover cap.
- a razor head of a wet shaver designed according to this technical teaching has the advantage that the pivoting mounting of the blade block within the body of the razor head is decisively improved.
- the blade block is designed as a separate component to the ordinary body of the razor head and is pivotally mounted in the side walls of the body, a spring being supported to achieve the spring restoring force between the body and the blade block.
- the pivoting geometry is precisely defined by this pivot axis and by the required pivoting force due to the defined spring. The precise guidance and the precisely defined spring continue to allow the swivel device to be correctly adjusted.
- the pivot axis of the blade block runs through the cover cap and thus lies above the upper blade and the blade block is thus suspended in a somewhat pendulous manner in the rest of the body of the razor head, optimal lever ratios can be achieved in this way, that this arrangement ensures that during the shaving the swing-out razor blades make a small movement in the shaving direction and thus prevent the razor blades from swinging into the skin.
- the razor blades can thus never take a position on the skin that leads to cutting injuries.
- the pivot axis preferably runs essentially in the area below the apex of the cover cap.
- the blade block preferably has lateral pins which define the pivot axis and which can be latched into corresponding recesses in the side walls of the body and are pivotably mounted therein.
- the blade block In a development of the blade block, it has lateral wings which, with their lateral outer surfaces together with the corresponding inner surfaces of the side walls of the body, define guide surfaces for the pivoting movement. This ensures a perfect pivoting movement of the blade block with respect to the rest of the body of the razor head.
- stops are preferably provided between the blade block and the body, which limit the movement of the blade block into predetermined, defined positions.
- the stops are preferably formed between the side wings of the blade block and the side walls of the body.
- the shaver head is preferably provided with a friction-reducing sliding strip, in particular based on water-soluble or non-water-soluble polymers.
- the reduction in friction has the advantage that the shaving properties of the razor head are improved.
- the razor head according to the invention with a pivotable blade block can be used on any type of wet razor.
- the razor blades can be exchangeable.
- the razor head is formed by a razor blade unit made of plastic, in which the razor blade (s) is (are) embedded in the blade block made of plastic.
- a razor blade unit 1 consists of a body 2 made of plastic. This body 2 has a side wall 3 at each of the two ends. Furthermore, a guide bar 4 is provided, which is connected in one piece to the actual body 2 via webs 5. This guide bar 4 extends in the longitudinal direction of the razor blade unit 1.
- the razor blade unit 1 is moreover intended to be arranged at the front end of a handle of a wet shaving apparatus, not shown, the fastening device to be provided for this purpose on the body 2 of the razor blade unit 1 not being shown.
- the razor blade unit 1 has a blade block 6 also made of plastic.
- razor blades 7 are embedded in the form of a double razor blade, the cutting edges 8 of which run parallel to the guide bar 4.
- the razor blades 7 are covered on the top by a cover cap 9 of the blade block 6.
- the blade block 6 has a wing 10, which is received by a corresponding recess in the respective side wall 3 of the body 2.
- the blade block 6 with its embedded razor blades 7 can be pivoted about a pivot axis A parallel to the cutting edges 8 within the body 2.
- the pivot axis A lies in the region of the apex 5 of the cover cap 9.
- the two wings 10 of the blade block 6 each have outwardly directed pins 11 which define the pivot axis A.
- the inner sides of the side wall 3 of the body 2 each have recesses 12.
- a spring 14 in the form of a helical spring is arranged between the body 2 and the blade block 6, which tries to turn the blade block 6 counterclockwise in FIG. 3 and thus the razor blades 7 into the position shown in FIG. 3 position shown pivoted outwards.
- the basic position is limited by the abutment of the upper arm 15 of the blade block 6 on the upper side of the body 2.
- the razor blade unit 1 described works as follows:
- the basic position can be seen in particular in FIG. 3.
- the spring 14 presses the blade block 6 forward into the position shown. This results in a very specific shaving geometry with a very specific shaving angle.
- the razor blade unit 1 comes into contact with the skin of the user, the user naturally exerting a certain pressure on the razor blade unit 1.
- the blade block 6 with its embedded razor blades 7 is pivoted in the direction of arrow P against the force of the spring 14, the pivoting angle depending on the magnitude of the force exerted.
- the shaving angle is relatively large, while after pivoting the blade block 6 it is relatively small, so that an overall adjustment of the shaving angle to the respective needs is possible.
- the outer sides of the wings 10 of the blade block 6 form, with the inner sides of the side walls 3 of the body 2, plane-parallel guide surfaces 16. Furthermore, between the body 2 and the blade block 6 are in the area of the side walls 3 and the wing 10 stops 17 are formed, which limit the pivoting angle of the blade block 6 with respect to the body 2.
- the razor blade unit 1 has the advantage that the entire blade block 6 can be pivoted by a certain angle with respect to the guide bar 4 and thus the shaving geometry can be changed with the razor angle, so that the overall shaving properties of the razor blade unit 1 are improved.
- the pivot axis A lies in the region of the apex S of the cover cap 9. This is a purely exemplary arrangement of the pivot axis A, so that it can also assume a different position within the body 2 as required.
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- Engineering & Computer Science (AREA)
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- Dry Shavers And Clippers (AREA)
Abstract
Description
Die Erfindung betrifft einen am vorderen Ende eines Handgriffs angeordneten Rasierapparatekopf eines Naßrasierapparates, mit einem, eine vordere Führungsleite aufweisenden Körper sowie mit einem Klingenblock, in dem eine Rasierklinge in Form einer Einfach- oder Doppelrasierklinge mit zu der Führungsleiste paralleler Schneidkante sowie mit einer die zuoberste Rasierklinge abdeckenden Abdeckkape angeordnet ist und der bezüglich zum restlichen, die Führungsleiste aufweisenden Körper des Rasierapparatekopfes um eine zu der (den) Schneidkante(n) parallele Verschwenkachse entgegen einer Federkraft frei verschwenkbar gelagert ist, wobei sich die Verschwenkachse hinter der (den) Schneidkante(n) erstreckt und der Klingenblock von der Oberseite her gesehen im Bereich zwischen der Verschwenkachse und der Führungsleiste nach unten im Körper verschwenkbar gelagert ist.The invention relates to a razor head of a wet shaver arranged at the front end of a handle, with a body having a front guide bar and with a blade block in which a razor blade in the form of a single or double razor blade with a cutting edge parallel to the guide bar and with a top razor blade covering cap is arranged and is mounted such that it can pivot freely against a spring force with respect to the rest of the body of the razor head, which body has the guide strip, about a pivot axis parallel to the cutting edge (s), the pivot axis being behind the cutting edge (s) extends and the blade block is seen from the top in the area between the pivot axis and the guide bar down in the body.
Ein derartiger Rasierapparatekopf für einen Naßrasierapparat ist beispielsweise aus der US-A 4,461,079 bekannt.Such a shaver head for a wet shaver is known for example from US-A 4,461,079.
In dieser Druckschrift ist ein am vorderen Ende eines Handgriffs angeordneter Rasierapparatekopf in Form einer sogenannten Rasierklingeneinheit eines Naßrasierapparates offenbart. Diese Rasierklingeneinheit besteht zunächst aus einem, eine vordere Führungsleiste aufweisenden Kunststoffkörper. An diesem sind vier nach vorne gerichtete Zungen derart über eine Art Filmscharnier angeformt, daß die Filmscharniere eine Verschwenkbarkeit der Zungen ermöglichen. Diese Zungen definieren einen Teil eines Klingenblockes, in den auf den Zungen eine Doppelrasierklinge unter Zwischenanordnung eines Abstandhalters gelagert ist, wobei zur Fixierung der Doppelrasierklinge eine Abdeckkappe des Klingenblockes aufgesetzt und mit den unteren Zungen vernietet ist. Durch die Verbindung dieses Klingenblockes über Filmscharniere mit dem eingentlichen Kunstoffkörper des Rasierapparatekopfes ist der Klingenblock zusammen mit den Rasierklingen zur Veränderung der Rasiergeometrie während der Rasur verschwenkbar.This publication discloses a razor head arranged at the front end of a handle in the form of a so-called razor blade unit of a wet razor. This razor blade unit initially consists of a plastic body having a front guide bar. Four forward tongues are formed on this in such a way via a type of film hinge that the film hinges can be pivoted of the tongues. These tongues define a part of a blade block, in which a double razor blade is mounted on the tongues with the interposition of a spacer, a cover cap of the blade block being attached and riveted to the lower tongues for fixing the double razor blade. By connecting this blade block via film hinges to the actual plastic body of the razor head, the blade block can be pivoted together with the razor blades to change the shaving geometry during shaving.
Bei dieser bekannten Rasierklingeneinheit ist die Verbindung des Klingenblockes über die Filmscharniere mit den eingentlichen Kunststoffkörper des Rasierapparatekopfes aus zweierlei Gründen von Nachteil. Zum einen erfolgt die Verschwenkung des Klingenblockes aus dem elastischen Verhalten der Filmscharniere, so daß eine präzise Führung nicht gegeben ist. Dabei wird die Kraft allein durch die elastische Verformbarkeit des Kunststoffmaterials im Bereich der Filmscharniere vorgegeben. Dabei ist es bei dem bekannten Rasierapparatekopf äußerst schwierig, die Filmscharniere derart dünn zu spritzen, daß einerseits die beim Rasieren notwendigen geringen Anpreßkäfte und andererseits die für die Montage notwendigen mechanischen Festigkeiten eirreicht werden. Zum anderen liegt bei der bekannten Konstruktion die Schwenkachse unterhalb der unteren Klingenebene. Dies führt zu einem Verschwenken des Klingenblockes während der Rasur nach hinten mit der Vergrößerung des Klingentangantenwinkels und des Klingenvorstandes, was zu einer unkomfortablen Resierleistung sowie vor allem aufgrund des Hineinschwenkens der Rasierklingen in die Haut zu Schneidverletzungen führt.In this known razor blade unit, the connection of the blade block via the film hinges to the ordinary plastic body of the razor head is disadvantageous for two reasons. On the one hand, the blade block is pivoted based on the elastic behavior of the film hinges, so that precise guidance is not provided. The force is determined solely by the elastic deformability of the plastic material in the area of the film hinges. It is extremely difficult in the known razor head to inject the film hinges so thinly that on the one hand the low contact forces necessary for shaving and on the other hand the mechanical strengths necessary for assembly are achieved. On the other hand, in the known construction, the pivot axis lies below the lower blade level. This leads to a swiveling of the blade block during shaving to the rear with an increase in the blade tangant angle and the blade board, which leads to an uncomfortable resection performance and, above all, to cutting injuries due to the pivoting of the razor blades into the skin.
Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, den Rasierapparatekopf eines Naßrasierapparates der eingangs angegebenen Art derart weiterzuentwickeln, daß die verschwenkbare Lagerung des Klingenblockes zur Veränderung des Rasierwinkels und damit der Schneidgeometrie verbessert ist.Proceeding from this, the object of the invention is to further develop the razor head of a wet shaver of the type specified at the outset in such a way that the pivotable mounting of the blade block for changing the shaving angle and thus the cutting geometry is improved.
Als technische Lösung wird mit der Erfindung vorgeschlagen, daß der Klingenblocks als ein zum Körper separates Bauteil in Seintenwänden des Körpers verschwenkbar gelagert ist und daß die Verschwenkachse durch die Abdeckkappe hindurch verläuft.As a technical solution , the invention proposes that the blade block is pivotally mounted as a component separate from the body in the side walls of the body and that the pivot axis runs through the cover cap.
Ein nach dieser technischen Lehre ausgebildeter Rasierapparatekopf eines Naßrasierapparates hat den Vorteil, daß die Verschwenklagerung des Klingenblockes innerhalb des Körpers des Rasierapparatekopfes entscheidend verbessert ist. Dies wird erfindungsgemäß dadurch erreicht, daß der Klingenblock als separates Bauteil zum eingentlichen Körper des Rasierapparatekopfes ausgebildet und in den Seitenwänden des Körpers verschwenkbar gelagert ist, wobei zur Erzielung der Federrückstellkraft zwischen dem Körper und den Klingenblock eine Feder abgestützt ist. Durch diese Schwenkachse sowie durch die erforderliche Schwenkkraft durch die definierte Feder ist die Geometrie der Verschwenkung präzise festgelegt. Die präzise Führung sowie die genau definierte Feder ermöglichen weiterhin die richtige Abstimmung der Schwenkeinrichtung. Da darüber hinaus die Schwenkachse des Klingenblockes durch die Abdeckkappe hindurch verläuft und damit oberhalb der oberen Klinge liegt und dadurch der Klingenblock im restlichen Körper des Rasierapparatekopfes gewissermaßen pendelnd aufgehängt ist, sind dadurch optimale Hebelverhältnisse dergestalt erreichbar, daß durch diese Anordnung sichergestellt ist, daß während des Rasierens die ausschwenkenden Rasierklingen eine kleine Bewegung in der Rasierrichtung machen und somit ein Hineinschwenken der Rasierklingen in die Haut verhindert wird. Bei der erfindungsgemäßen Verschwenklagerung des Klingenblockes können die Rasierklingen somit niemals eine Stellung zur Haut einnehmen, die zu Schneidverletzungen führt.A razor head of a wet shaver designed according to this technical teaching has the advantage that the pivoting mounting of the blade block within the body of the razor head is decisively improved. This is achieved according to the invention in that the blade block is designed as a separate component to the ordinary body of the razor head and is pivotally mounted in the side walls of the body, a spring being supported to achieve the spring restoring force between the body and the blade block. The pivoting geometry is precisely defined by this pivot axis and by the required pivoting force due to the defined spring. The precise guidance and the precisely defined spring continue to allow the swivel device to be correctly adjusted. Since, in addition, the pivot axis of the blade block runs through the cover cap and thus lies above the upper blade and the blade block is thus suspended in a somewhat pendulous manner in the rest of the body of the razor head, optimal lever ratios can be achieved in this way, that this arrangement ensures that during the shaving the swing-out razor blades make a small movement in the shaving direction and thus prevent the razor blades from swinging into the skin. When the blade block is pivoted according to the invention, the razor blades can thus never take a position on the skin that leads to cutting injuries.
Die Verschwenkachse verläuft vorzugsweise im wesentlichen im Bereich unterhalb des Scheitelpunktes der Abdeckkappe. In einer konstruktiven Ausbildung dieser Klingenblocklagerung weist der Klingenblock vorzugsweise seitliche, die Verschwenkachse definierende Zapfen auf, die in entsprechende Ausnehmungen in den Seitenwänden des Körpers einrastbar und darin verschwenkbar gelagert sind. Dies hat den Vorteil, daß man insgesamt nur zwei Teile für den Rasierapparatekopf benötigt, nämlich einen Grundkörper für die Rasierklingeneinheit mit der Führungsleiste in Form eines einstückigen Kunststoffkörpers sowie weiterhin einen einteiligen Klingenblock, bei dem die Rasierklingen durch Kunststoff umspritzt sind, so daß bei der Montage des Rasierapparatekopfes in Form einer sogenannten Rasierklingeneinheit der Klingenblock lediglich vorzugsweise von oben in den Körper eingesetzt und mit diesem verrastet werden muß, indem die Zapfen des Klingenblocks in die entsprechenden Ausnehmungen in den Seitenwänden des Körpers einschnappen.The pivot axis preferably runs essentially in the area below the apex of the cover cap. In a constructive embodiment of this blade block mounting, the blade block preferably has lateral pins which define the pivot axis and which can be latched into corresponding recesses in the side walls of the body and are pivotably mounted therein. This has the advantage that a total of only two parts are required for the razor head, namely a base body for the razor blade unit with the guide strip in the form of a one-piece plastic body and also a one-piece blade block in which the razor blades are encapsulated by plastic, so that during assembly of the razor head in the form of a so-called razor blade unit, the blade block only has to be preferably inserted into the body from above and locked in place by the pins of the blade block snapping into the corresponding recesses in the side walls of the body.
In einer Weiterbildung des Klingenblockes weist dieser seitliche Flügel auf, die mit ihren seitlichen Außenflächen zusammen mit den dazu korrespondierenden Innenflächen der Seitenwände des Körpers Führungsflächen für die Verschwenkbewegung definieren. Dadurch ist eine einwandfreie Verschwenkbewegung des Klingenblockes bezüglich zum restlichen Körper des Rasierapparatekopfes gewährleistet.In a development of the blade block, it has lateral wings which, with their lateral outer surfaces together with the corresponding inner surfaces of the side walls of the body, define guide surfaces for the pivoting movement. This ensures a perfect pivoting movement of the blade block with respect to the rest of the body of the razor head.
Weiterhin sind vorzugsweise zwischen dem Klingenblock und dem Körper Anschläge vorgesehen, die die Bewegung des Klingenblockes in vorgegebene, definierte Positionen begrenzen. Die Anschläge sind dabei vorzugsweise zwischen den seitlichen Flügeln des Klingenblocks und den Seitenwänden des Körpers ausgebildet.Furthermore, stops are preferably provided between the blade block and the body, which limit the movement of the blade block into predetermined, defined positions. The stops are preferably formed between the side wings of the blade block and the side walls of the body.
Vorzugsweise ist der Rasierapparatekopf mit einem reibungsmindernden Gleitstreifen insbesondere auf der Basis wasserlöslicher oder nicht wasserlöslicher Polymere versehen. Die Reibungsverminderung hat dabei den Vorteil, daß die Rasiereigenschaften des Rasierapparatekopfes verbessert werden.The shaver head is preferably provided with a friction-reducing sliding strip, in particular based on water-soluble or non-water-soluble polymers. The reduction in friction has the advantage that the shaving properties of the razor head are improved.
Der erfindungsgemäße Rasierapparatekopf mit einem verschwenkbaren Klingenblock kann an jeder Art von Naßrasierapparat verwendet werden. So können beispielsweise die Rasierklingen auswechselbar sein. In einer bevorzugten Ausführungsform ist jedoch der Rasierapparatekopf durch eine aus Kunststoff bestehende Rasierklingeneinheit gebildet, bei der die Rasierklinge(n) unlösbar im Klingenblock aus Kunststoff eingebettet ist (sind).The razor head according to the invention with a pivotable blade block can be used on any type of wet razor. For example, the razor blades can be exchangeable. In a preferred embodiment, however, the razor head is formed by a razor blade unit made of plastic, in which the razor blade (s) is (are) embedded in the blade block made of plastic.
Ein Ausführungsbeispiel eines erfindungsgemäßen Rasierapparatekopfes in Form einer sogenannten Rasierklingeneinheit wird nachfolgend anhand einer rein schematischen Zeichnung beschrieben. In dieser zeigt:
- Fig. 1
- eine Draufsicht auf die Rasierklingeneinheit;
- Fig. 2
- eine Seitenansicht der Rasierklingeneinheit;
- Fig. 3
- einen Schnitt entlang der Linie III-III in Fig. 1;
- Fig. 4
- einen Schnitt entlang der Linie IV-IV in Fig. 1.
- Fig. 1
- a top view of the razor blade unit;
- Fig. 2
- a side view of the razor blade unit;
- Fig. 3
- a section along the line III-III in Fig. 1;
- Fig. 4
- a section along the line IV-IV in Fig. 1st
Eine Rasierklingeneinheit 1 besteht aus einem Körper 2 aus Kunststoff. Dieser Körper 2 weist an den beiden Enden jeweils eine Seitenwand 3 auf. Weiterhin ist eine Führungsleiste 4 vorgesehen, welche über Stege 5 mit dem eigentlichen Körper 2 einstückig verbunden ist. Diese Führungsleiste 4 erstreckt sich in Längsrichtung der Rasierklingeneinheit 1.A
Die Rasierklingeneinheit 1 ist im Übrigen dafür vorgesehen, am vorderen Ende eines nicht dargestellten Handgriffes eines Naßrasierapparates angeordnet zu werden, wobei die zu diesem Zweck am Körper 2 der Rasierklingeneinheit 1 vorzusehende Befestigungseinrichtung nicht dargestellt ist.The
Weiterhin weist die Rasierklingeneinheit 1 einen Klingenblock 6 ebenfalls aus Kunststoff auf. In diesem Klingenblock 6 sind Rasierklingen 7 in Form einer Doppelrasierklinge eingebettet, deren Schneidkanten 8 parallel zur Führungsleiste 4 verlaufen. Oberseitig sind die Rasierklingen 7 durch eine Abdeckkappe 9 des Klingenblocks 6 abgedeckt. Seitlich weist der Klingenblock 6 jeweils einen Flügel 10 auf, welcher durch eine entsprechende Aussparung in der jeweiligen Seitenwand 3 des Körpers 2 aufgenommen ist.Furthermore, the
Der Klingenblock 6 mit seinen eingebetteten Rasierklingen 7 ist um eine zu den Schneidkanten 8 parallele Verschwenkachse A innerhalb des Körpers 2 verschwenkbar. Die Verschwenkachse A liegt dabei im Bereich des Scheitelpunktes 5 der Abdeckkappe 9. Zur Ermöglichung der Verschwenkbewegung des Klingenblockes 6 innerhalb des Körpers 2 weisen die beiden Flügel 10 des Klingenblocks 6 jeweils nach außen gerichtete Zapfen 11 auf, welche die Verschwenkachse A definieren. Dazu korrespondierend weisen die Innenseiten der Seitenwand 3 des Körpers 2 jeweils Ausnehmungen 12 auf. Die Oberseite der Seitenwand 3 des Körpers 2 weist dabei jeweils eine Schräge 13 auf, wie insbesondere in der Schnittdarstellung gemäß Fig. 4 erkennbar ist. Diese ist derart ausgebildet, daß der Klingenblock 6 mit seinen Zapfen 11 von oben auf die Schrägen 13 aufgesetzt werden kann. Durch Nachuntendrücken des Klingenblocks 6 weichen die Seitenwände 3 des Körpers 2 nach außen hin aus, so daß die Zapfen 11 des Klingenblocks 6 in die zugehörigen Ausnehmungen 12 im Körper 2 einrasten können.The
Wie in Fig. 3 erkennbar ist, ist zwischen dem Körper 2 und dem Klingenblock 6 eine Feder 14 in Form einer Wendelfeder angeordnet, welche in Fig. 3 den Klingenblock 6 entgegen dem Uhrzeigersinn zu drehen versucht und somit die Rasierklingen 7 in die in Fig. 3 dargestellte Position nach außen verschwenkt. Die Grundposition ist dabei durch die Anlage des oberen Armes 15 des Klingenblocks 6 an der Oberseite des Körpers 2 begrenzt.As can be seen in FIG. 3, a
Die beschriebene Rasierklingeneinheit 1 funktioniert wie folgt:The
Die Grundposition ist insbesondere in Fig. 3 zu erkennen. Die Feder 14 drückt dabei den Klingenblock 6 in die dargestellte Position nach vorne. Dadurch ergibt sich eine ganz bestimmte Rasiergeometrie mit einem ganz bestimmten Rasierwinkel. Während der Rasur kommt die Rasierklingeneinheit 1 auf der Haut des Benutzers zur Anlage, wobei der Benutzer naturgemäß einen bestimmten Druck auf die Rasierklingeneinheit 1 ausübt. Dadurch wird der Klingenblock 6 mit seinen eingebetteten Rasierklingen 7 in Richtung des Pfeiles P entgegen der Kraft der Feder 14 verschwenkt, wobei der Verschwenkwinkel von der Größe der ausgeübten Kraft abhängt. Je stärker somit der Benutzer auf die Rasierklingeneinheit drückt bzw. je stärker der Benutzer die Rasierklingeneinheit 1 auf die Haut während der Rasur drückt, desto mehr wird der Klingenblock 6 nach innen verschwenkt, wobei die Schneidgeometrie und damit der Rasierwinkel entsprechend verändert wird. In der dargestellten Grundposition ist dabei der Rasierwinkel relativ groß, während er nach Verschwenken des Klingenblockes 6 relativ klein ist, so daß insgesamt eine Anpassung des Rasierwinkels an die jeweiligen Bedürfnisse möglich ist.The basic position can be seen in particular in FIG. 3. The
Um eine einwandfreie Verschwenkbewegung zwischen dem Klingenblock 6 und dem Körper 2 zu erzielen, bilden die Außenseiten der Flügel 10 des Klingenblocks 6 mit den Innenseiten der Seitenwände 3 des Körpers 2 planparallel aneinanderliegende Führungsflächen 16. Weiterhin sind zwischen dem Körper 2 und dem Klingenblock 6 im Bereich der Seitenwände 3 sowie der Flügel 10 Anschläge 17 ausgebildet, welche den Verschwenkwinkel des Klingenblocks 6 bezüglich zum Körper 2 begrenzen.In order to achieve a perfect pivoting movement between the
Die erfindungsgemäße Rasierklingeneinheit 1 hat den Vorteil, daß der gesamte Klingenblock 6 um einen gewissen Winkel bezüglich zur Führungsleiste 4 verschwenkbar und somit die Rasiergeometrie mit dem Rasierwinkel veränderbar ist, so daß insgesamt die Rasiereigenschaften der Rasierklingeneinheit 1 verbessert sind.The
Bei dem dargestellten Ausführungsbeispiel liegt die Verschwenkachse A im Bereich des Scheitelpunktes S der Abdeckkappe 9. Dies ist eine rein beispielhafte Anordnung der Verschwenkachse A, so daß diese je nach Bedarf auch eine andere Position innerhalb des Körpers 2 einnehmen kann.In the illustrated embodiment, the pivot axis A lies in the region of the apex S of the
- 11
- RasierklingeneinheitRazor blade unit
- 22nd
- Körperbody
- 33rd
- SeitenwandSide wall
- 44th
- FührungsleisteGuide bar
- 55
- Stegweb
- 66
- KlingenblockBlade block
- 77
- Rasierklingerazor blade
- 88th
- SchneidkanteCutting edge
- 99
- AbdeckkappeCover cap
- 1010th
- Flügelwing
- 1111
- ZapfenCones
- 1212
- AusnehmungRecess
- 1313
- SchrägeWeird
- 1414
- Federfeather
- 1515
- Armpoor
- 1616
- FührungsflächeLeadership area
- 1717th
- Anschlagattack
- AA
- VerschwenkachseSwivel axis
- PP
- VerschwenkpfeilSwivel arrow
- SS
- ScheitelParting
Claims (8)
- A razor head for a wet shaver arranged at the front end of a razor handle, with a body (2) comprising a front guardbar (4),
as well as a blade block (6) in which at least one razor blade (7) in the form of a single or twin razor blade comprising cutting edges (8) is arranged parallel to the guardbar (4) as well as to a cover cap (9) arranged above the razor blades (7), and which is freely pivotally arranged against a spring force with respect to the rest of the plastic body (2) including the guardbar (4) about an pivot axis (A) which is parallel to the cutting edges (8), whereby the pivot axis (A) extends behind the cutting edge(s) (8) and the blade block (2) is arranged pivotally from the upper side in the region between the pivot axis (A) and the guardbar (4) to the underside in the body (2),
characterised in that,
the blade block (6) is formed as a separate component to the body (2) and is pivotally mounted in side walls (3) of the body (2) and that the pivot axis (A) runs through the cover cap (9). - A razor head according to claim 1, characterised in that the pivot axis (A) extends essentially in the region underneath the vertex (S) of the cover cap (9).
- A razor head according to claim 1 or 2, characterised in that the blade block (6) has a pair of lateral pins (11) which define the swivelling axis (A), and each of the side walls (3) include a recess (12) therein, wherein the lateral pins (11) are swivelably mounted.
- A razor head according to any one of claims 1 to 3, characterised in that blade block (6) comprises wings (10) on each side, which with their outside surfaces define guide surfaces (16) for the pivoting path with the corresponding inside surfaces of the side walls (3) of the body (2).
- A razor head according to any one of claims 1 to 4, characterised in that stops (17) are arranged between the blade block (6) and the body (2).
- A razor head according to claim 4 and 5, characterised in that the stops (17) are formed between the side wings (10) of the blade block (6) and the side walls (3) of the body (2).
- A razor head according to any one of claims 1 to 6, characterised in that, it is provided with a friction reducing strip in particular based on a water soluble or water insoluble polymer.
- A razor head according to any one of claims 1 to 7, characterised in that it is formed from a razor blade unit (1) comprised of plastic, in which the razor blade(s) are immovably embedded in the plastic blade block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90112442T ATE96075T1 (en) | 1989-09-02 | 1990-06-29 | RAZOR HEAD OF A WET RAZOR. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8910490U | 1989-09-02 | ||
| DE8910490U DE8910490U1 (en) | 1989-09-02 | 1989-09-02 | Shaver head of a wet shaver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0416233A1 EP0416233A1 (en) | 1991-03-13 |
| EP0416233B1 true EP0416233B1 (en) | 1993-10-20 |
Family
ID=6842505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90112442A Expired - Lifetime EP0416233B1 (en) | 1989-09-02 | 1990-06-29 | Razor head of a wet-razor |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5074042A (en) |
| EP (1) | EP0416233B1 (en) |
| AT (1) | ATE96075T1 (en) |
| DE (2) | DE8910490U1 (en) |
| DK (1) | DK0416233T3 (en) |
| ES (1) | ES2047211T3 (en) |
| HK (1) | HK64894A (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9108212U1 (en) * | 1991-07-03 | 1992-10-29 | Wilkinson Sword GmbH, 5650 Solingen | Shaver head, in particular razor blade unit of a wet shaver |
| DE9108214U1 (en) * | 1991-07-03 | 1992-10-29 | Wilkinson Sword GmbH, 5650 Solingen | Shaver head, in particular razor blade unit of a wet shaver |
| AU5551994A (en) * | 1992-11-09 | 1994-06-08 | Warner-Lambert Company | Insert molded dynamic shaving system |
| US5341571A (en) * | 1993-04-16 | 1994-08-30 | American Safety Razor Company | Movable blade shaving cartridge or the like |
| US5590468A (en) * | 1993-04-16 | 1997-01-07 | American Safety Razor Company | Movable blade shaving cartridge with conditioning bar |
| US5402574A (en) * | 1994-05-20 | 1995-04-04 | Milner; Joshua P. | Shaving apparatus |
| US5666729A (en) * | 1995-04-10 | 1997-09-16 | Warner-Lambert Company | Suspended blade shaving system |
| US5787586A (en) * | 1996-04-10 | 1998-08-04 | The Gillette Company | Shaving system and method |
| US20040020053A1 (en) * | 2000-10-16 | 2004-02-05 | The Gillette Company | Safety razors |
| DE60327993D1 (en) * | 2002-01-30 | 2009-07-30 | Eveready Battery Inc | RAZOR UNIT |
| US6839968B2 (en) | 2002-05-09 | 2005-01-11 | The Gillette Company | Shaving systems |
| US6852262B2 (en) | 2002-05-09 | 2005-02-08 | The Gillette Company | Insert molding razor cartridges |
| JP4950507B2 (en) * | 2006-02-14 | 2012-06-13 | 株式会社貝印刃物開発センター | razor |
| JP4977374B2 (en) * | 2006-02-14 | 2012-07-18 | 株式会社貝印刃物開発センター | razor |
| JP4950506B2 (en) * | 2006-02-14 | 2012-06-13 | 株式会社貝印刃物開発センター | razor |
| US9283685B2 (en) * | 2012-07-26 | 2016-03-15 | Shavelogic, Inc. | Pivoting razors |
| US9486930B2 (en) * | 2012-09-27 | 2016-11-08 | Shavelogic, Inc. | Shaving systems |
| WO2014051842A1 (en) | 2012-09-27 | 2014-04-03 | Shavelogic, Inc. | Shaving systems |
| WO2014051843A1 (en) | 2012-09-28 | 2014-04-03 | Shavelogic, Inc. | Shaving systems |
| US9623575B2 (en) | 2012-12-18 | 2017-04-18 | Shavelogic, Inc. | Shaving systems |
| WO2014110031A1 (en) * | 2013-01-08 | 2014-07-17 | The Hone Razor Company LLC | Razor and razor treatment system |
| US20150158192A1 (en) | 2013-12-09 | 2015-06-11 | Shavelogic, Inc. | Multi-material pivot return for shaving systems |
| US11325270B2 (en) | 2014-03-21 | 2022-05-10 | Sl Ip Company Llc | Metal spring return and method |
| WO2018152387A1 (en) | 2017-02-17 | 2018-08-23 | Leaf Shave Company | Trimmer razor |
| USD970814S1 (en) | 2020-03-24 | 2022-11-22 | Leaf Shave Company | Trimmer razor |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593416A (en) * | 1968-10-10 | 1971-07-20 | Roger C Edson | Safety razor |
| GB1470386A (en) * | 1973-05-15 | 1977-04-14 | Wilkinson Sword Ltd | Shaving units |
| GB1487305A (en) * | 1973-09-20 | 1977-09-28 | Gillette Co | Safety razor |
| US4026016A (en) * | 1975-05-12 | 1977-05-31 | The Gillette Company | Razor blade assembly |
| DE3019399A1 (en) * | 1979-05-25 | 1981-04-23 | The Gillette Co., 02199 Boston, Mass. | HEAD OF A SAFETY SHAVER |
| DE3167072D1 (en) * | 1980-08-07 | 1984-12-13 | Gillette Co | Razor blade assembly |
| US4442598A (en) * | 1981-01-30 | 1984-04-17 | The Gillette Company | Razor blade assembly |
| IT8209403A1 (en) * | 1981-05-19 | 1983-11-14 | Wilkinson Sword Ltd | SHAVING COMPLEX WITH BLADE MOVABLE BETWEEN TWO POSITIONS |
| CA1213428A (en) * | 1981-05-19 | 1986-11-04 | Angus J. Mcgready | Razors and shaving units for razors |
| US4461079A (en) * | 1982-06-01 | 1984-07-24 | Warner-Lambert Company | Method and apparatus for changing the shaving attitude of a blade package |
| US4574476A (en) * | 1982-09-27 | 1986-03-11 | Warner-Lambert Company | Razor blade assembly |
| US4774765A (en) * | 1986-09-02 | 1988-10-04 | Warner-Lambert Company | Blade assembly featuring variable span |
| US4709477A (en) * | 1986-09-02 | 1987-12-01 | Warner-Lambert Company | Blade assembly featuring variable span |
| US4693003A (en) * | 1986-09-15 | 1987-09-15 | Warner Lambert Company | Pivotable razor cartridge with circular cam |
| US4813131A (en) * | 1987-11-16 | 1989-03-21 | The Gillette Company | Retractable blade safety razor |
| US4777722A (en) * | 1987-12-14 | 1988-10-18 | The Gillette Company | Combination overcover for safety razor |
-
1989
- 1989-09-02 DE DE8910490U patent/DE8910490U1/en not_active Expired - Lifetime
-
1990
- 1990-06-29 DE DE90112442T patent/DE59003136D1/en not_active Expired - Lifetime
- 1990-06-29 EP EP90112442A patent/EP0416233B1/en not_active Expired - Lifetime
- 1990-06-29 AT AT90112442T patent/ATE96075T1/en not_active IP Right Cessation
- 1990-06-29 DK DK90112442.0T patent/DK0416233T3/en active
- 1990-06-29 ES ES90112442T patent/ES2047211T3/en not_active Expired - Lifetime
- 1990-08-31 US US07/576,210 patent/US5074042A/en not_active Expired - Lifetime
-
1994
- 1994-07-07 HK HK64894A patent/HK64894A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE8910490U1 (en) | 1991-01-10 |
| HK64894A (en) | 1994-07-15 |
| US5074042A (en) | 1991-12-24 |
| DE59003136D1 (en) | 1993-11-25 |
| DK0416233T3 (en) | 1994-03-07 |
| ATE96075T1 (en) | 1993-11-15 |
| EP0416233A1 (en) | 1991-03-13 |
| ES2047211T3 (en) | 1994-02-16 |
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