EP2902156B1 - Shaver with a handle and a rotatable cutting unit - Google Patents

Shaver with a handle and a rotatable cutting unit Download PDF

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Publication number
EP2902156B1
EP2902156B1 EP14153361.2A EP14153361A EP2902156B1 EP 2902156 B1 EP2902156 B1 EP 2902156B1 EP 14153361 A EP14153361 A EP 14153361A EP 2902156 B1 EP2902156 B1 EP 2902156B1
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EP
European Patent Office
Prior art keywords
receiver
handle
bar
razor
cutting 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.)
Active
Application number
EP14153361.2A
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German (de)
French (fr)
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EP2902156A1 (en
Inventor
Uwe Denkert
Danilo Leicht
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Feintechnik GmbH Eisfeld
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Feintechnik GmbH Eisfeld
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.)
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Publication date
Application filed by Feintechnik GmbH Eisfeld filed Critical Feintechnik GmbH Eisfeld
Priority to ES14153361.2T priority Critical patent/ES2660443T3/en
Priority to EP14153361.2A priority patent/EP2902156B1/en
Priority to US14/258,769 priority patent/US9522472B2/en
Publication of EP2902156A1 publication Critical patent/EP2902156A1/en
Application granted granted Critical
Publication of EP2902156B1 publication Critical patent/EP2902156B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit
    • B26B21/225—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit the changeable unit being resiliently mounted on the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4068—Mounting devices; Manufacture of razors or cartridges
    • B26B21/4075—Mounting devices
    • 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

Definitions

  • the present invention relates to a razor, namely a so-called wet razor, with a handle, a cutting unit and a coupling portion for mounting the cutting unit on the handle.
  • the cutting unit is mounted rotatably relative to the handle.
  • the cutting unit comprises a blade unit with one or preferably several blades, in particular with three, four or five blades.
  • the blade unit is pivotally mounted about a pivot axis extending parallel to the longitudinal extent of the blades.
  • the coupling portion of the razor comprises a receptacle and an axially fixed in this recording and at the same time rotatably mounted rod.
  • the razor cartridge includes a housing having one or more blades, a sliding strip, a cap, and a connector having a rotatable support structure.
  • the housing is rotatably mounted about an axis of rotation.
  • the support structure and an adjoining base structure permit the fixed but removable attachment of the razor cartridge to an extension of a handle.
  • Substantially a plug connection is made between the connection structure and the extension of the handle, for which the base structure has a recess which has internal surfaces which engage with the outer surfaces of the extension of the handle.
  • the aim of this connector is the immovable razor cartridge as possible to the handle but at the same time make the replacement of the razor cartridge easy for the user.
  • WO 89/10245 A1 is a razor with a handle and a spring-loaded razor blade holder described.
  • a pivot joint permits pivotal movement of the razor blade holder relative to the handle, wherein the pivot axis is substantially parallel to the cutting edges of the blades disposed in the razor blade holder.
  • a resiliently elastic bearing is provided, which allow for the corresponding force acting pitch, torsion and translational movements of the razor blade holder relative to the handle, wherein when eliminating the force of the razor blade holder returns to a neutral position.
  • the elastic bearing is permanently integrated into the handle and requires a corresponding assembly effort in the manufacture of the razor.
  • the JP 04 022 388 A shows a razor in which a blade unit is rotatably mounted in a fork bracket. This allows pivoting of the blade unit about a pivot axis parallel to the longitudinal extension of the blades.
  • the fork bracket is connected to a connecting portion, which in turn is attached to the handle of the razor.
  • a rotary bearing is formed, wherein the axis of rotation extends substantially perpendicular to the longitudinal axis of the blades and also perpendicular to the longitudinal extent of the handle portion, which projects into the connecting portion.
  • the exchange of the blade unit is done by separation from the fork bracket so that the pivot bearing formed in the connecting portion does not have to be opened.
  • the WO 2009/154921 A2 shows a razor with a blade unit, which is connected via a connecting element with the handle.
  • the blade unit can be pivoted about a first axis extending parallel to the cutting edges.
  • the blade unit can be pivoted about a second axis which is perpendicular to the cutting edges.
  • the connecting element has a rest position, wherein a restoring force occurs when the blade unit is pivoted about the second axis from the rest position.
  • a relative motion transmitting member is required to transmit a relative movement between the handle and the blade unit caused by the pivotal movement about the second axis. This results in a complicated structure with numerous individual parts, whereby the assembly effort in the manufacture of the razor is considerable. When worn blades, the blade unit is released from the connecting element, so that the other bearing elements are not affected.
  • the shows EP 2 123 410 B1 a razor blade unit for a razor having a blade housing with a plurality of blades and a coupling portion releasably attachable to a handle. Between the blade housing and the coupling portion, a film hinge is formed, which defines a parallel to the skin contact plane extending pivot axis.
  • the coupling portion has a sleeve into which an adapter portion of the handle is insertable to secure the entire razor blade unit to the handle. This produces a detachable connection that is immovable during use.
  • the DE 20 2007 002 013 U1 shows a razor for hard to reach body parts, the handle part is extendable.
  • the blades are stored in a storage carriage.
  • the bearing carriage is mounted on the handle. It is rotatable about an axis extending parallel to the longitudinal extension of the blades.
  • the US 2011/0173821 A1 describes a razor whose blades are parallel to the longitudinal axis of the handle.
  • the razor has an axis of rotation in the direction of the handle.
  • the handle includes a handle portion and a connecting portion which is attached to the handle portion.
  • the connecting portion may rotate relative to the handle portion about an axis of rotation.
  • the axis of rotation is perpendicular to a pivot axis of the blade unit.
  • the blade unit is detachably attached to the connecting portion via a connecting means. The arrangement of the axis of rotation at the junction of connecting portion and handle portion results in a relatively complicated handle structure and thus a high implementation cost.
  • the CA 2 443 881 A1 shows a razor with a razor head and a preferably telescopically extendable handle.
  • the razor head is rotatably mounted on the handle.
  • the rotatable mounting allows a radial pivoting of the razor head about a pivot axis extending parallel to the longitudinal axis of the handle, wherein the radial pivoting movement can be limited by means of a rotary stop.
  • the razor head can also be rotated axially about a pivot axis extending perpendicular to the longitudinal axis of the handle.
  • a razor is described with a razor head releasably attached to a handle.
  • the razor head can be equipped with two opposing blades.
  • the handle has a curved end with a recess for receiving a pin-shaped extension of the razor head.
  • the pin-shaped extension can be rotated by 360 °, wherein in two opposing rotational positions, a lock takes place in order to select either one of the two razor blades.
  • the object of the present invention is, starting from the razor according to DE 20 2007 002 013 U1 to provide an improved razor, which allows a rotation of the cutting unit relative to the handle by a predetermined angle of rotation in both directions, the entire structure of the razor should not be much more complicated and a user-friendly plug-in connection for the replacement of the razor blade unit should be present ,
  • the razor according to the invention has a special design of the coupling section between the cutting unit and the handle.
  • this coupling portion comprises a receptacle on one side and a rod inserted into the receptacle on the other side.
  • the receptacle is preferably designed in the form of a sleeve with non-circular opening cross-section, in which an elongated rod is used for the preparation of the coupling.
  • the outer shape of the rod and the inner contour of the recording are coordinated so that the rod can be easily inserted by the user, but when it reaches its end position in the axial direction then it is set to the extent that an automatic release of the coupling produced is avoided.
  • the longitudinal axis of the rod is substantially parallel to the longitudinal axis of the handle of the razor, namely with an angular deviation ⁇ 10 °.
  • a major advantage resulting from the arrangement of a pivot bearing within the coupling portion is that the cutting unit can be rotated substantially about the longitudinal axis of the handle in a predetermined angular range, while maintaining the pivoting of the blade unit around the parallel to the unhindered Blades swivel axis. In this way, the blade unit adapts to the skin contours during shaving much better than if only pivoting about the pivot axis of the blade unit is made possible. Since this pivot bearing is integrated into the coupling portion, a very simple construction of the razor without numerous individual parts, so that the assembly steps in the manufacture of the razor and the cutting unit can be made simple. Finally comes as a particular advantage that existing handles known shaver with cutting units according to the invention can be equipped so that the razor then receives the inventive function of rotation about the longitudinal axis of the handle, without the existing handle must be replaced.
  • the receptacle comprises one or more spring elements projecting into its interior, which urge the inserted rod into a rest position. The rod is then rotated from this rest position in both directions with respect to the receptacle to a predetermined angle, which is in the range between 1 ° and 10 °.
  • the spring elements are preferably formed as spring arms, which are arranged on the opposite wall portions of the receptacle. The free ends of the spring arms act in this case on the rod inserted into the receptacle.
  • the reception of the coupling portion is an integral part of the cutting unit.
  • the rod is formed as an extension of the handle preferably in a cuboid shape, wherein the cross section of the rod may have a polygonal shape to be adapted to the cavity of the receptacle. It is essential that the rod is rotatable by the predetermined angle within the receptacle and at the same time is supported by bearing against bearing points and / or storage lines.
  • the cross-sectional area of the rod will in this case be appreciably smaller than that of the opening cross section of the receptacle, in particular by 5% to 50% smaller, in order to allow the rotation of the rod in the receptacle.
  • the receptacle may also be formed on the handle, when the cutting unit is provided with a complementarily shaped rod, in turn to form the coupling portion together with the receptacle. It is particularly preferred if the blade unit is permanently connected to the receptacle of the coupling section, so that when replacing a used-up blade unit, the part of the coupling section which encloses the receptacle is also exchanged. In particular, in this design, it is advantageous if the pivot axis about which the blade unit is pivotable, is formed by two film hinges, which are arranged on the side edges of the blade unit.
  • Fig. 1 shows in a perspective view from above a portion of a razor 01, whose main components are formed by a cutting unit 02 and a handle 03. From the handle is in the picture only a front extension in Shape of a rod 04 shown, while the handle included in the use of the razor by the user is not shown.
  • the cutting unit 02 has a blade unit 06 with a blade holder 07, in which in the example shown five individual blades (not shown) can be used, which are mounted immovably substantially in the blade unit 06.
  • the blade unit also has in a conventional manner arranged in the direction of shaving in front of the cutting edges of the blades foam edge for biasing the skin during shaving and a sliding strip, which is in the direction of shaving behind the cutting edges of the blades.
  • Other designs of the blade unit are also possible.
  • the cutting unit 02 is connected on both sides arranged film hinges 08 each with lateral support arms 09.
  • the film hinges 08 define the position of a substantially parallel to the longitudinal extent of the blades extending pivot axis about which the blade unit 02 during shaving is pivotable.
  • the pivot axis can also be formed by a variable pivoting portion, as will be the case with film hinges.
  • the receptacle 12 has a cavity into which the rod 04 is inserted to secure the cutting unit 02 to the handle 03.
  • the terminal dome 11 is preferably formed on its outer side so that it provides one or more control surfaces 13, on which the user can engage to replace the cutting unit to the cutting unit in the axial direction of the rod 04 to remove.
  • the receptacle 12 forms together with the rod inserted into it 04 a coupling portion.
  • the rod 04 After the rod 04 is inserted into the receptacle 12, there is a fixed connection in the axial direction between the cutting unit 02 and the handle 03, so that an automatic release of the cutting unit is avoided by the handle. As is illustrated by the drawn movement arrow, the rod 04 within the receptacle 12, however, also in this inserted state allows a rotational movement starting from a zero position in both directions of rotation.
  • the receptacle 12 has for a bar with polygonal cross-section sufficient free space to allow this rotation in a predetermined angular range.
  • Fig. 2 shows above all the coupling portion as a detail of the razor in a simplified perspective view from below.
  • the rod 04 is not fully inserted into the receptacle 12.
  • the receptacle 12 has a latching tongue 14 with a latching lug 16 (see. Fig. 3 ), which engages after the complete insertion of the rod 04 in a designated in this detent recess 17 to fix the rod 04 axially.
  • two spring arms 18 which can be pivoted radially and act on the side surfaces of the rod 04 to urge this in a zero position.
  • Fig. 3 a cross-sectional view through the coupling portion is shown. It is well recognizable there that the rod 04 in the inserted state, the cavity of the receptacle 12 is not completely filled and apart from corresponding bearings not with the inner surfaces of the receptacle in contact stands to allow the rotation of the rod. A bearing point forms the detent 16 which is engaged in the detent recess 17. Opposite the locking lug 16 is a guide rib 19 is arranged, which also acts linearly on the opposite side of the rod 04, so that it is clamped between the latching lug 16 and the guide rib 19.
  • the rod 04 is shown in a zero position, ie without a rotation about its longitudinal axis.
  • the drawn angle lines and movement arrows make it clear that the rod 04 is still rotatable about its longitudinal axis in this position, but further degrees of freedom are blocked.
  • the lower side edges of the rod 04 abut against the free ends of the spring arms 18, which experience a bias on insertion of the rod 04 in the receptacle 12 and thereby also contribute to the clamping of the rod 04.
  • the bearing line between the top of the rod 04 and the guide rib 19 forms the pivot bearing for the rod, while the surface of the detent recess 17 slides over the latch 16 when the rod 04 is caused to rotate.
  • a torque is exerted on the cutting unit relative to the handle when an external force acts on it, then it is rotated relative to the rod 04, wherein the rotational axis either lies in the longitudinal axis or runs parallel to it.
  • the spring arms 18 are also brought to a displacement, since the position of the lower side edges of the rod 04 changes.
  • the pivoting of the spring arms 18 is illustrated by the respective dashed position.
  • the rotation of the rod 04 is by stop surfaces 21 within the recording 12 limited.
  • the spring stiffness of the spring arms is dimensioned, for example, such that a force in the range of 5 to 30 N occurs at the end of the spring arm 18 when the cutting unit is twisted as far as possible.
  • the latching tongue 14 and the spring arms 18 are formed integrally with the receptacle 12 and the connection dome 11, preferably as a plastic injection molded part. It is also advantageous if the support arms 09 are formed in the same manufacturing step and also the other housing components of the blade unit are produced in this single injection molding process.
  • a preferred embodiment is characterized in that the housing parts of the blade unit, the support arms, the entire receptacle and at least the supporting portions of the film hinges are made of one and the same plastic.
  • the housing parts of the blade unit, the support arms, the entire receptacle and at least the supporting portions of the film hinges are made of one and the same plastic.
  • Fig. 4 shows a simplified cross-sectional view of a modified embodiment of the razor. Significant differences arise mainly from the changed shape of the rod 04 and the recording 12. The principle of operation remains unchanged.
  • the rod 04 is fixed only in the axial direction in the receptacle 12, while it remains rotatable about an axis of rotation, within the predetermined angular range.
  • the spring arms 18 apply a spring force to the rod 04, so that it is urged in the absence of an external moment in a zero position, while the spring arms 18 pivot laterally outwards when a spring force overcoming moment is impressed.
  • the present invention further relates to the interchangeable cutting unit as already described above.
  • Such cutting units are regularly offered as replacement elements for corresponding razors, the handle of the razor being used several times.

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

Description

Die vorliegende Erfindung betrifft einen Rasierer, nämlich einen so genannten Nassrasierer, mit einem Griff, einer Schneideinheit und einem Kupplungsabschnitt zur Anbringung der Schneideinheit am Griff. Die Schneideinheit ist dabei relativ zum Griff drehbeweglich angebracht. Die Schneideinheit umfasst eine Klingeneinheit mit einer oder vorzugsweise mehreren Klingen, insbesondere mit drei, vier oder fünf Klingen. Die Klingeneinheit ist um eine parallel zur Längserstreckung der Klingen verlaufende Schwenkachse schwenkbar gelagert. Der Kupplungsabschnitt des Rasierers umfasst eine Aufnahme und einen in dieser Aufnahme axial festliegenden und gleichzeitig drehbar gelagerten Stab.The present invention relates to a razor, namely a so-called wet razor, with a handle, a cutting unit and a coupling portion for mounting the cutting unit on the handle. The cutting unit is mounted rotatably relative to the handle. The cutting unit comprises a blade unit with one or preferably several blades, in particular with three, four or five blades. The blade unit is pivotally mounted about a pivot axis extending parallel to the longitudinal extent of the blades. The coupling portion of the razor comprises a receptacle and an axially fixed in this recording and at the same time rotatably mounted rod.

In der EP 1 053 837 B1 ist ein Rasierer mit einer auswechselbaren Rasierkassette gezeigt. Die Rasierkassette umfasst ein Gehäuse mit einer oder mehreren Klingen, einem Gleitstreifen, einer Kappe sowie einem Verbindungselement mit einer drehbaren Trägerstruktur. Das Gehäuse ist drehbar um eine Drehachse gelagert. Die Trägerstruktur und eine daran anschließende Basisstruktur gestatten die feste aber entfernbare Anbringung der Rasierkassette an einer Verlängerung eines Handgriffs. Zwischen der Verbindungsstruktur und der Verlängerung des Handgriffs ist im Wesentlichen eine Steckverbindung hergestellt, wofür die Basisstruktur eine Aussparung aufweist, die innenliegende Oberflächen besitzt, welche mit den außenliegenden Oberflächen der Verlängerung des Handgriffs in Eingriff gelangen. Ziel dieser Steckverbindung ist es, die Rasierkassette möglichst unbeweglich am Handgriff zu befestigen, gleichzeitig aber das Auswechseln der Rasierkassette für den Benutzer einfach zu gestalten.In the EP 1 053 837 B1 is shown a razor with a removable razor cartridge. The razor cartridge includes a housing having one or more blades, a sliding strip, a cap, and a connector having a rotatable support structure. The housing is rotatably mounted about an axis of rotation. The support structure and an adjoining base structure permit the fixed but removable attachment of the razor cartridge to an extension of a handle. Substantially a plug connection is made between the connection structure and the extension of the handle, for which the base structure has a recess which has internal surfaces which engage with the outer surfaces of the extension of the handle. The aim of this connector is the immovable razor cartridge as possible to the handle but at the same time make the replacement of the razor cartridge easy for the user.

In der WO 89/10245 A1 ist ein Rasierer mit einem Handgriff und einem rückfedernd gelagerten Rasierklingenhalter beschrieben. Ein Schwenkgelenk gestattet eine Schwenkbewegung des Rasierklingenhalters gegenüber dem Handgriff, wobei die Schwenkachse im Wesentlichen parallel zu den Schneidkanten der im Rasierklingenhalter angeordneten Klingen verläuft. Darüber hinaus ist eine rückfedernd elastische Lagerung vorgesehen, die bei entsprechender Krafteinwirkung Nick-, Torsions- und Translationsbewegungen des Rasierklingenhalters gegenüber dem Handgriff gestatten, wobei beim Wegfall der Kraft der Rasierklingenhalter in eine neutrale Lage zurückkehrt. Durch diese elastische Lagerung kommt es jedoch immer zu einer Überlagerung mehrerer Bewegungsanteile, wobei insbesondere eine leichtgängige Verdrehung der gesamten Schneideinheit gegenüber dem Handgriff nicht möglich ist. Das elastische Lager ist dauerhaft in den Handgriff integriert und erfordert einen entsprechenden Montageaufwand bei der Herstellung des Rasierers.In the WO 89/10245 A1 is a razor with a handle and a spring-loaded razor blade holder described. A pivot joint permits pivotal movement of the razor blade holder relative to the handle, wherein the pivot axis is substantially parallel to the cutting edges of the blades disposed in the razor blade holder. In addition, a resiliently elastic bearing is provided, which allow for the corresponding force acting pitch, torsion and translational movements of the razor blade holder relative to the handle, wherein when eliminating the force of the razor blade holder returns to a neutral position. Through this elastic storage, however, there is always a superposition of several movement shares, in particular a smooth rotation of the entire cutting unit relative to the handle is not possible. The elastic bearing is permanently integrated into the handle and requires a corresponding assembly effort in the manufacture of the razor.

Die JP 04 022 388 A zeigt einen Rasierer, bei welchem eine Klingeneinheit in einer Gabelhalterung drehbar gelagert ist. Dies ermöglicht ein Verschwenken der Klingeneinheit um eine Schwenkachse parallel zur Längserstreckung der Klingen. Die Gabelhalterung ist mit einem Verbindungsabschnitt verbunden, der seinerseits am Handgriff des Rasierers befestigt ist. Dabei ist ein Drehlager ausgebildet, wobei die Drehachse im Wesentlichen senkrecht zur Längsachse der Klingen verläuft und ebenfalls senkrecht zur Längserstreckung des Griffabschnitts, der in den Verbindungsabschnitt hineinragt. Der Austausch der Klingeneinheit erfolgt durch Trennung von der Gabelhalterung so dass das im Verbindungsabschnitt ausgebildete Drehlager nicht geöffnet werden muss.The JP 04 022 388 A shows a razor in which a blade unit is rotatably mounted in a fork bracket. This allows pivoting of the blade unit about a pivot axis parallel to the longitudinal extension of the blades. The fork bracket is connected to a connecting portion, which in turn is attached to the handle of the razor. In this case, a rotary bearing is formed, wherein the axis of rotation extends substantially perpendicular to the longitudinal axis of the blades and also perpendicular to the longitudinal extent of the handle portion, which projects into the connecting portion. The exchange of the blade unit is done by separation from the fork bracket so that the pivot bearing formed in the connecting portion does not have to be opened.

Die WO 2009/154921 A2 zeigt einen Rasierer mit einer Klingeneinheit, welche über ein Verbindungselement mit dem Handgriff verbunden ist. Die Klingeneinheit kann um eine erste, parallel zu den Schneidkanten verlaufende Achse verschwenkt werden. Zusätzlich kann die Klingeneinheit um eine zweite Achse verschwenkt werden, welche senkrecht zu den Schneidkanten verläuft. Das Verbindungselement besitzt eine Ruhelage, wobei eine Rückstellkraft auftritt, wenn die Klingeneinheit um die zweite Achse aus der Ruhelage verschwenkt wird. Darüber hinaus ist ein Relativbewegungsübertragungsbauteil erforderlich, um eine durch die Schwenkbewegung um die zweite Achse verursachte relative Bewegung zwischen Handgriff und Klingeneinheit zu übertragen. Damit resultiert ein komplizierter Aufbau mit zahlreichen Einzelteilen, wodurch der Montageaufwand bei der Herstellung des Rasierers erheblich ist. Bei verschlissenen Klingen wird die Klingeneinheit vom Verbindungselement gelöst, so dass die weiteren Lagerelemente nicht betroffen sind.The WO 2009/154921 A2 shows a razor with a blade unit, which is connected via a connecting element with the handle. The blade unit can be pivoted about a first axis extending parallel to the cutting edges. In addition, the blade unit can be pivoted about a second axis which is perpendicular to the cutting edges. The connecting element has a rest position, wherein a restoring force occurs when the blade unit is pivoted about the second axis from the rest position. In addition, a relative motion transmitting member is required to transmit a relative movement between the handle and the blade unit caused by the pivotal movement about the second axis. This results in a complicated structure with numerous individual parts, whereby the assembly effort in the manufacture of the razor is considerable. When worn blades, the blade unit is released from the connecting element, so that the other bearing elements are not affected.

Schließlich zeigt die EP 2 123 410 B1 eine Rasierklingeneinheit für einen Rasierer mit einem Klingengehäuse mit mehreren Klingen und einem Kupplungsabschnitt, der lösbar an einen Handgriff anbringbar ist. Zwischen dem Klingengehäuse und dem Kupplungsabschnitt ist ein Filmscharnier ausgebildet, welches eine parallel zur Hautberührungsebene verlaufende Schwenkachse definiert. Der Kupplungsabschnitt weist eine Hülse auf, in welche ein Adapterabschnitt des Handgriffs einsteckbar ist, um die gesamte Rasierklingeneinheit am Handgriff zu befestigen. Dadurch wird eine lösbare, während der Benutzung unbewegliche Verbindung hergestellt.Finally, the shows EP 2 123 410 B1 a razor blade unit for a razor having a blade housing with a plurality of blades and a coupling portion releasably attachable to a handle. Between the blade housing and the coupling portion, a film hinge is formed, which defines a parallel to the skin contact plane extending pivot axis. The coupling portion has a sleeve into which an adapter portion of the handle is insertable to secure the entire razor blade unit to the handle. This produces a detachable connection that is immovable during use.

Die DE 20 2007 002 013 U1 zeigt einen Rasierer für schwer zugängliche Körperpartien, dessen Griffteil verlängerbar ist. Die Klingen sind in einem Lager-Schlitten gelagert. Der Lager-Schlitten ist am Griffteil gelagert. Er ist um eine parallel zur Längserstreckung der Klingen verlaufende Achse drehbar.The DE 20 2007 002 013 U1 shows a razor for hard to reach body parts, the handle part is extendable. The blades are stored in a storage carriage. The bearing carriage is mounted on the handle. It is rotatable about an axis extending parallel to the longitudinal extension of the blades.

Die US 2011/0173821 A1 beschreibt einen Rasierer, dessen Klingen parallel zur Längsachse des Griffs verlaufen. Der Rasierer besitzt eine Drehachse in Griffachsrichtung.The US 2011/0173821 A1 describes a razor whose blades are parallel to the longitudinal axis of the handle. The razor has an axis of rotation in the direction of the handle.

Aus der WO 2011/019577 A1 ist ein Rasierer mit einer Klingeneinheit und einem Griff bekannt. Der Griff umfasst einen Griffabschnitt und einen Verbindungsabschnitt, welcher am Griffabschnitt befestigt ist. Der Verbindungsabschnitt kann in Bezug zum Griffabschnitt um eine Rotationsachse rotieren. Die Rotationsachse verläuft senkrecht zu einer Schwenkachse der Klingeneinheit. Die Klingeneinheit ist über ein Verbindungsmittel lösbar am Verbindungsabschnitt befestigt. Durch die Anordnung der Rotationsachse an der Verbindungsstelle von Verbindungsabschnitt und Griffabschnitt ergibt sich ein verhältnismäßig komplizierter Griffaufbau und somit ein hoher Realisierungsaufwand.From the WO 2011/019577 A1 is a razor with a blade unit and a handle known. The handle includes a handle portion and a connecting portion which is attached to the handle portion. The connecting portion may rotate relative to the handle portion about an axis of rotation. The axis of rotation is perpendicular to a pivot axis of the blade unit. The blade unit is detachably attached to the connecting portion via a connecting means. The arrangement of the axis of rotation at the junction of connecting portion and handle portion results in a relatively complicated handle structure and thus a high implementation cost.

Die CA 2 443 881 A1 zeigt einen Rasierer mit einem Rasierkopf und einem vorzugsweise teleskopartig ausziehbaren Griff. Der Rasierkopf ist drehbar am Griff gelagert. Die drehbare Lagerung ermöglicht ein radiales Verschwenken des Rasierkopfs um eine parallel zur Längsachse des Griffs verlaufende Schwenkachse, wobei die radiale Schwenkbewegung mit Hilfe eines Drehanschlages begrenzbar ist. Der Rasierkopf kann weiterhin axial um eine senkrecht zur Längsachse des Griffs verlaufende Schwenkachse gedreht werden.The CA 2 443 881 A1 shows a razor with a razor head and a preferably telescopically extendable handle. The razor head is rotatably mounted on the handle. The rotatable mounting allows a radial pivoting of the razor head about a pivot axis extending parallel to the longitudinal axis of the handle, wherein the radial pivoting movement can be limited by means of a rotary stop. The razor head can also be rotated axially about a pivot axis extending perpendicular to the longitudinal axis of the handle.

In der BE 1 000 779 A7 ist ein Rasierer mit einem lösbar an einem Griff befestigten Rasierkopf beschrieben. Der Rasierkopf kann mit zwei einander gegenüberliegenden Klingen ausgestattet sein. Der Griff weist ein gebogenes Ende mit einer Ausnehmung zur Aufnahme einer stiftförmigen Erweiterung des Rasierkopfs auf. Die stiftförmige Erweiterung kann um 360° gedreht werden, wobei in zwei einander gegenüberliegenden Drehlagen eine Arretierung erfolgt, um wahlweise eine der beiden Rasierklingen auswählen zu können.In the BE 1 000 779 A7 a razor is described with a razor head releasably attached to a handle. The razor head can be equipped with two opposing blades. The handle has a curved end with a recess for receiving a pin-shaped extension of the razor head. The pin-shaped extension can be rotated by 360 °, wherein in two opposing rotational positions, a lock takes place in order to select either one of the two razor blades.

Die Aufgabe der vorliegenden Erfindung besteht darin, ausgehend von dem Rasierer gemäß DE 20 2007 002 013 U1 einen verbesserten Rasierer bereitzustellen, welcher eine Drehbarkeit der Schneideinheit gegenüber dem Griff um einen vorgegebenen Drehwinkel in beiden Drehrichtungen gestattet, wobei der gesamte Aufbau des Rasierers nicht deutlich komplizierter gestaltet sein soll und eine vom Benutzer einfach zu bedienende Steckverbindung für den Austausch der Rasierklingeneinheit vorhanden sein soll.The object of the present invention is, starting from the razor according to DE 20 2007 002 013 U1 to provide an improved razor, which allows a rotation of the cutting unit relative to the handle by a predetermined angle of rotation in both directions, the entire structure of the razor should not be much more complicated and a user-friendly plug-in connection for the replacement of the razor blade unit should be present ,

Diese und weitere Aufgaben werden durch einen Rasierer gemäß dem beigefügten Anspruch 1 und durch eine Schneideinheit gemäß dem beigefügten Anspruch 10 gelöst.These and other objects are achieved by a razor according to the appended claim 1 and by a cutting unit according to the appended claim 10.

Der erfindungsgemäße Rasierer weist eine spezielle Gestaltung des Kupplungsabschnitts zwischen Schneideinheit und Griff auf. Grundsätzlich umfasst dieser Kupplungsabschnitt eine Aufnahme auf der einen Seite und einen in die Aufnahme eingesetzten Stab auf der anderen Seite. Die Aufnahme ist vorzugsweise in Form einer Hülse mit nicht kreisförmigem Öffnungsquerschnitt gestaltet, in welche ein länglicher Stab zur Herstellung der Kupplung eingesetzt wird. Die äußere Formgebung des Stabes und die innere Kontur der Aufnahme sind so aufeinander abgestimmt, dass der Stab vom Benutzer leicht eingeführt werden kann, bei Erreichen seiner Endposition in axialer Richtung dann aber insoweit festgelegt wird, dass ein selbsttätiges Lösen der hergestellten Kupplung vermieden ist. Beispielsweise erfolgt dies durch Einrasten von Federzungen oder Rastnasen in entsprechende Ausnehmungen des jeweils gegenüberliegenden Kupplungsteils. Abweichend von dieser an sich bekannten Gestaltung sind Aufnahme und Stab beim Kupplungsabschnitt des erfindungsgemäßen Rasierers jedoch
derart aufeinander abgestimmt, dass einerseits in axialer Richtung eine feste, zum Auswechseln der Schneideinheit jedoch lösbare Verbindung hergestellt ist, andererseits eine Drehbewegung um eine Drehachse möglich bleibt, wobei die Drehachse im Wesentlichen parallel zur Längsachse des Stabes verläuft und im Wesentlichen senkrecht zur Schwenkachse der Klingeneinheit liegt. Das zwischen der Aufnahme und dem Stab ausgebildete Drehlager gestattet insbesondere eine Verdrehung der Schneideinheit gegenüber dem Griff mit einem vorgegebenen Drehwinkel, der vorzugsweise mindestens 2° und höchstens 20° beträgt.The razor according to the invention has a special design of the coupling section between the cutting unit and the handle. Basically, this coupling portion comprises a receptacle on one side and a rod inserted into the receptacle on the other side. The receptacle is preferably designed in the form of a sleeve with non-circular opening cross-section, in which an elongated rod is used for the preparation of the coupling. The outer shape of the rod and the inner contour of the recording are coordinated so that the rod can be easily inserted by the user, but when it reaches its end position in the axial direction then it is set to the extent that an automatic release of the coupling produced is avoided. For example, this is done by engaging spring tongues or detents in corresponding recesses of the respective opposite coupling part. Notwithstanding this known per se recording and rod in the coupling portion of the razor according to the invention, however
coordinated such that on the one hand in the axial direction a solid, for replacing the cutting unit but detachable connection is made, on the other hand, a rotational movement about a rotation axis remains possible, wherein the axis of rotation is substantially parallel to the longitudinal axis of the rod and substantially perpendicular to the pivot axis of the blade unit lies. The pivot bearing formed between the receptacle and the rod in particular allows a rotation of the cutting unit relative to the handle with a predetermined angle of rotation, which is preferably at least 2 ° and at most 20 °.

Gemäß einer besonders bevorzugten Ausführungsform verläuft die Längsachse des Stabes im Wesentlichen parallel zur Längsachse des Griffs des Rasierers, nämlich mit einer Winkelabweichung < 10°.According to a particularly preferred embodiment, the longitudinal axis of the rod is substantially parallel to the longitudinal axis of the handle of the razor, namely with an angular deviation <10 °.

Ein wesentlicher Vorteil, der sich aus der Anordnung eines Drehlagers innerhalb des Kupplungsabschnitts ergibt, besteht darin, dass sich die Schneideinheit im Wesentlichen um die Längsachse des Griffs in einem vorgegebenen Winkelbereich verdrehen lässt, bei gleichzeitiger ungehinderter Aufrechterhaltung der Schwenkbarkeit der Klingeneinheit um die parallel zu den Klingen liegende Schwenkachse. Auf diese Weise passt sich die Klingeneinheit bei der Rasur den Hautkonturen wesentlich besser an, als wenn nur ein Schwenken um die Schwenkachse der Klingeneinheit ermöglicht ist. Da dieses Drehlager in den Kupplungsabschnitt integriert ist, ergibt sich ein sehr einfacher Aufbau des Rasierers ohne zahlreiche Einzelteile, so dass die Montageschritte bei der Fertigung des Rasierers bzw. der Schneideinheit einfach gestaltet werden können. Schließlich kommt noch als besonderer Vorteil hinzu, dass sich vorhandene Griffe bekannter Rasierer mit erfindungsgemäßen Schneideinheiten ausrüsten lassen, so dass der Rasierer dann die erfindungsgemäße Funktion der Drehbarkeit um die Längsachse des Handgriffs erhält, ohne dass der bereits vorhandene Griff ausgetauscht werden muss.A major advantage resulting from the arrangement of a pivot bearing within the coupling portion is that the cutting unit can be rotated substantially about the longitudinal axis of the handle in a predetermined angular range, while maintaining the pivoting of the blade unit around the parallel to the unhindered Blades swivel axis. In this way, the blade unit adapts to the skin contours during shaving much better than if only pivoting about the pivot axis of the blade unit is made possible. Since this pivot bearing is integrated into the coupling portion, a very simple construction of the razor without numerous individual parts, so that the assembly steps in the manufacture of the razor and the cutting unit can be made simple. Finally comes as a particular advantage that existing handles known shaver with cutting units according to the invention can be equipped so that the razor then receives the inventive function of rotation about the longitudinal axis of the handle, without the existing handle must be replaced.

Bei einer bevorzugten Ausführungsform umfasst die Aufnahme ein oder mehrere in ihren Innenraum hineinragende Federelemente, die den eingesetzten Stab in eine Ruhelage drängen. Der Stab ist dann aus dieser Ruhelage in beiden Richtungen gegenüber der Aufnahme verdrehbar, um einen vorgegebenen Winkel, der im Bereich zwischen 1° und 10° liegt. Die Federelemente sind vorzugsweise als Federarme ausgeformt, die an den gegenüberliegenden Wandungsabschnitten der Aufnahme angeordnet sind. Die freien Enden der Federarme wirken in diesem Fall auf den in die Aufnahme eingesetzten Stab ein.In a preferred embodiment, the receptacle comprises one or more spring elements projecting into its interior, which urge the inserted rod into a rest position. The rod is then rotated from this rest position in both directions with respect to the receptacle to a predetermined angle, which is in the range between 1 ° and 10 °. The spring elements are preferably formed as spring arms, which are arranged on the opposite wall portions of the receptacle. The free ends of the spring arms act in this case on the rod inserted into the receptacle.

Bei einer bevorzugten Ausführungsform ist die Aufnahme des Kupplungsabschnitts ein integraler Bestandteil der Schneideinheit. In diesem Fall ist der Stab als eine Verlängerung des Griffs ausgebildet vorzugsweise in quaderförmiger Gestalt, wobei der Querschnitt des Stabes eine polygonale Form aufweisen kann, um an den Hohlraum der Aufnahme angepasst zu sein. Dabei ist es wesentlich, dass der Stab um den vorbestimmten Winkel innerhalb der Aufnahme verdrehbar ist und gleichzeitig durch Anlage an Lagerpunkten und/oder Lagerlinien gelagert ist. Die Querschnittsfläche des Stabes wird in diesem Fall erkennbar kleiner sein als diejenige des Öffnungsquerschnitts der Aufnahme, insbesondere um 5% bis 50% kleiner, um die Drehung des Stabes in der Aufnahme zu ermöglichen. Bei abgewandelten Ausführungsformen kann die Aufnahme allerdings auch am Griff ausgebildet sein, wenn die Schneideinheit mit einem komplementär geformten Stab versehen ist, um wiederum den Kupplungsabschnitt gemeinsam mit der Aufnahme zu bilden. Es ist besonders bevorzugt, wenn die Klingeneinheit unlösbar mit der Aufnahme des Kupplungsabschnitts verbunden ist, so dass beim Auswechseln einer verbrauchten Klingeneinheit auch der die Aufnahme umfassende Teil des Kupplungsabschnitts mit gewechselt wird. Insbesondere bei dieser Bauform ist es zweckmäßig, wenn die Schwenkachse, um welche die Klingeneinheit schwenkbar ist, durch zwei Filmscharniere gebildet ist, die an den Seitenkanten der Klingeneinheit angeordnet sind.In a preferred embodiment, the reception of the coupling portion is an integral part of the cutting unit. In this case, the rod is formed as an extension of the handle preferably in a cuboid shape, wherein the cross section of the rod may have a polygonal shape to be adapted to the cavity of the receptacle. It is essential that the rod is rotatable by the predetermined angle within the receptacle and at the same time is supported by bearing against bearing points and / or storage lines. The cross-sectional area of the rod will in this case be appreciably smaller than that of the opening cross section of the receptacle, in particular by 5% to 50% smaller, in order to allow the rotation of the rod in the receptacle. In modified embodiments, however, the receptacle may also be formed on the handle, when the cutting unit is provided with a complementarily shaped rod, in turn to form the coupling portion together with the receptacle. It is particularly preferred if the blade unit is permanently connected to the receptacle of the coupling section, so that when replacing a used-up blade unit, the part of the coupling section which encloses the receptacle is also exchanged. In particular, in this design, it is advantageous if the pivot axis about which the blade unit is pivotable, is formed by two film hinges, which are arranged on the side edges of the blade unit.

Weitere Vorteile, Einzelheiten und Weiterbildungen der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsformen, unter Bezugnahme auf die Zeichnung. Es zeigen:

Fig. 1:
eine Detailansicht einer ersten Ausführungsform eines erfindungsgemäßen Rasierers in vereinfachter perspektivischer Ansicht von oben;
Fig. 2:
eine Detailansicht des Rasierers in vereinfachter perspektivischer Ansicht von unten;
Fig. 3:
eine Querschnittsansicht eines Kupplungsabschnitts des Rasierers;
Fig. 4:
eine vereinfachte Querschnittsansicht einer zweiten Ausführungsform des Rasierers mit einem verändertem Kupplungsabschnitt.
Further advantages, details and developments of the present invention will become apparent from the following description of preferred embodiments, with reference to the drawings. Show it:
Fig. 1:
a detailed view of a first embodiment of a razor according to the invention in a simplified perspective view from above;
Fig. 2:
a detailed view of the razor in a simplified perspective view from below;
3:
a cross-sectional view of a coupling portion of the razor;
4:
a simplified cross-sectional view of a second embodiment of the razor with a modified coupling portion.

Fig. 1 zeigt in einer perspektivischen Ansicht von oben einen Abschnitt eines Rasierers 01, dessen Hauptkomponenten durch eine Schneideinheit 02 und einen Griff 03 gebildet sind. Vom Griff ist in der Abbildung nur eine vordere Verlängerung in Form eines Stabes 04 gezeigt, während der bei Benutzung des Rasierers vom Benutzer umfasste Handgriff nicht gezeigt ist. Fig. 1 shows in a perspective view from above a portion of a razor 01, whose main components are formed by a cutting unit 02 and a handle 03. From the handle is in the picture only a front extension in Shape of a rod 04 shown, while the handle included in the use of the razor by the user is not shown.

Die Schneideinheit 02 besitzt eine Klingeneinheit 06 mit einer Klingenhalterung 07, in welche beim dargestellten Beispiel fünf Einzelklingen (nicht dargestellt) eingesetzt werden können, die im Wesentlichen in der Klingeneinheit 06 unbeweglich gelagert sind. Die Klingeneinheit besitzt darüber hinaus in an sich bekannter Weise eine in Rasurrichtung vor den Schneidkanten der Klingen angeordnete Schaumkante zum Vorspannen der Haut während der Rasur sowie einen Gleitstreifen, der sich in Rasurrichtung hinter den Schneidkanten der Klingen befindet. Andere Bauformen der Klingeneinheit sind ebenfalls möglich.The cutting unit 02 has a blade unit 06 with a blade holder 07, in which in the example shown five individual blades (not shown) can be used, which are mounted immovably substantially in the blade unit 06. The blade unit also has in a conventional manner arranged in the direction of shaving in front of the cutting edges of the blades foam edge for biasing the skin during shaving and a sliding strip, which is in the direction of shaving behind the cutting edges of the blades. Other designs of the blade unit are also possible.

Bei der dargestellten Ausführungsform ist die Schneideinheit 02 über beidseitig angeordnete Filmscharniere 08 jeweils mit seitlichen Trägerarmen 09 verbunden. Die Filmscharniere 08 definieren die Lage einer im Wesentlichen parallel zur Längserstreckung der Klingen verlaufende Schwenkachse, um welche die Klingeneinheit 02 während der Rasur schwenkbar ist. Die Schwenkachse kann auch durch einen variablen Schwenkabschnitt gebildet sein, wie es gerade bei Filmscharnieren der Fall sein wird.In the illustrated embodiment, the cutting unit 02 is connected on both sides arranged film hinges 08 each with lateral support arms 09. The film hinges 08 define the position of a substantially parallel to the longitudinal extent of the blades extending pivot axis about which the blade unit 02 during shaving is pivotable. The pivot axis can also be formed by a variable pivoting portion, as will be the case with film hinges.

Die Trägerarme 09 vereinen sich in einer zentral liegenden Anschlusskuppel 11, die in ihrem Inneren eine Aufnahme 12 bildet. Die Aufnahme 12 besitzt einen Hohlraum, in den der Stab 04 eingesetzt wird, um die Schneideinheit 02 am Griff 03 zu befestigen. Die Anschlusskuppel 11 ist an ihrer Außenseite vorzugsweise so geformt, dass sie eine oder mehrere Bedienflächen 13 bereitstellt, an welcher der Benutzer zum Auswechseln der Schneideinheit angreifen kann, um die Schneideinheit in axialer Richtung vom Stab 04 zu entfernen. Die Aufnahme 12 bildet gemeinsam mit dem in sie eingesetzten Stab 04 einen Kupplungsabschnitt.The support arms 09 unite in a centrally located connection dome 11, which forms a receptacle 12 in its interior. The receptacle 12 has a cavity into which the rod 04 is inserted to secure the cutting unit 02 to the handle 03. The terminal dome 11 is preferably formed on its outer side so that it provides one or more control surfaces 13, on which the user can engage to replace the cutting unit to the cutting unit in the axial direction of the rod 04 to remove. The receptacle 12 forms together with the rod inserted into it 04 a coupling portion.

Nachdem der Stab 04 in die Aufnahme 12 eingesetzt ist, besteht zwischen der Schneideinheit 02 und dem Griff 03 eine in axialer Richtung feste Verbindung, so dass ein selbsttätiges Lösen der Schneideinheit vom Griff vermieden wird. Wie durch den eingezeichneten Bewegungspfeil verdeutlicht wird, ist dem Stab 04 innerhalb der Aufnahme 12 allerdings auch in diesem eingesetzten Zustand eine Drehbewegung ausgehend von einer Nulllage in beiden Drehrichtungen ermöglicht. Die Aufnahme 12 weist dafür auch bei einem Stab mit polygonalem Querschnitt ausreichende Freiräume auf, um in einem vorbestimmten Winkelbereich diese Drehbewegung zuzulassen.After the rod 04 is inserted into the receptacle 12, there is a fixed connection in the axial direction between the cutting unit 02 and the handle 03, so that an automatic release of the cutting unit is avoided by the handle. As is illustrated by the drawn movement arrow, the rod 04 within the receptacle 12, however, also in this inserted state allows a rotational movement starting from a zero position in both directions of rotation. The receptacle 12 has for a bar with polygonal cross-section sufficient free space to allow this rotation in a predetermined angular range.

Fig. 2 zeigt vor allem den Kupplungsabschnitt als Detail des Rasierers in einer vereinfachten perspektivischen Ansicht von unten. In dieser Darstellung ist der Stab 04 noch nicht vollständig in die Aufnahme 12 eingeführt. Die Aufnahme 12 besitzt eine Rastzunge 14 mit einer Rastnase 16 (vgl. Fig. 3), die nach dem vollständigen Einsetzen des Stabes 04 in eine in diesem vorgesehene Rastmulde 17 eingreift, um den Stab 04 axial zu fixieren. Weiterhin umfasst die Aufnahme 12 im gezeigten Beispiel zwei Federarme 18, die radial verschwenkt werden können und auf die Seitenflächen des Stabes 04 einwirken, um diesen in einen Nulllage zu drängen. Fig. 2 shows above all the coupling portion as a detail of the razor in a simplified perspective view from below. In this illustration, the rod 04 is not fully inserted into the receptacle 12. The receptacle 12 has a latching tongue 14 with a latching lug 16 (see. Fig. 3 ), which engages after the complete insertion of the rod 04 in a designated in this detent recess 17 to fix the rod 04 axially. Furthermore, the receptacle 12 in the example shown, two spring arms 18 which can be pivoted radially and act on the side surfaces of the rod 04 to urge this in a zero position.

In Fig. 3 ist eine Querschnittsansicht durch den Kupplungsabschnitt gezeigt. Es ist dort gut erkennbar, dass der Stab 04 im eingesetzten Zustand den Hohlraum der Aufnahme 12 nicht vollständig ausfüllt und abgesehen von entsprechenden Lagerstellen nicht mit den Innenflächen der Aufnahme in Kontakt steht, um die Drehbewegung des Stabes zu ermöglichen. Einen Lagerpunkt bildet die Rastnase 16, die in der Rastmulde 17 eingerastet ist. Gegenüberliegend der Rastnase 16 ist eine Führungsrippe 19 angeordnet, die ebenfalls linienförmig an der gegenüberliegenden Seite des Stabes 04 angreift, so dass dieser zwischen der Rastnase 16 und der Führungsrippe 19 eingespannt ist.In Fig. 3 a cross-sectional view through the coupling portion is shown. It is well recognizable there that the rod 04 in the inserted state, the cavity of the receptacle 12 is not completely filled and apart from corresponding bearings not with the inner surfaces of the receptacle in contact stands to allow the rotation of the rod. A bearing point forms the detent 16 which is engaged in the detent recess 17. Opposite the locking lug 16 is a guide rib 19 is arranged, which also acts linearly on the opposite side of the rod 04, so that it is clamped between the latching lug 16 and the guide rib 19.

In der Fig. 3 ist der Stab 04 in einer Nulllage dargestellt, d. h. ohne eine Verdrehung um seine Längsachse. Die eingezeichneten Winkellinien und Bewegungspfeile verdeutlichen jedoch, dass der Stab 04 auch in dieser Position weiterhin drehbar ist um seine Längsachse, weitere Freiheitsgrade jedoch blockiert sind. Die unteren Seitenkanten des Stabes 04 liegen an den freien Enden der Federarme 18 an, die beim Einsetzen des Stabes 04 in die Aufnahme 12 eine Vorspannung erfahren und dadurch ebenfalls zum Einspannen des Stabes 04 beitragen. Bei der dargestellten Ausführungsform bildet die Lagerlinie zwischen der Oberseite des Stabes 04 und der Führungsrippe 19 das Drehlager für den Stab, während die Fläche der Rastmulde 17 über die Rastnase 16 gleitet, wenn der Stab 04 zur Drehung veranlasst wird.In the Fig. 3 the rod 04 is shown in a zero position, ie without a rotation about its longitudinal axis. The drawn angle lines and movement arrows, however, make it clear that the rod 04 is still rotatable about its longitudinal axis in this position, but further degrees of freedom are blocked. The lower side edges of the rod 04 abut against the free ends of the spring arms 18, which experience a bias on insertion of the rod 04 in the receptacle 12 and thereby also contribute to the clamping of the rod 04. In the illustrated embodiment, the bearing line between the top of the rod 04 and the guide rib 19 forms the pivot bearing for the rod, while the surface of the detent recess 17 slides over the latch 16 when the rod 04 is caused to rotate.

Wird beim Einwirken einer äußeren Kraft ein Drehmoment auf die Schneideinheit relativ zum Griff ausgeübt, so verdreht sich diese gegenüber dem Stab 04, wobei die Drehachse entweder in der Längsachse liegt oder parallel zu dieser verläuft. Bei einer Drehung des Stabes 04 relativ zur Schneideinheit werden die Federarme 18 ebenfalls zu einer Verlagerung gebracht, da sich die Position der unteren Seitenkanten des Stabes 04 verändert. Das Verschwenken der Federarme 18 ist durch die jeweils gestrichelte Position verdeutlicht. Die Verdrehung des Stabes 04 wird durch Anschlagflächen 21 innerhalb der Aufnahme 12 begrenzt. Die Federsteifigkeit der Federarme ist beispielsweise so dimensioniert, dass bei bis zum Anschlag verdrehter Schneideinheit am Ende des Federarms 18 eine Kraft im Bereich von 5 - 30 N auftritt.If a torque is exerted on the cutting unit relative to the handle when an external force acts on it, then it is rotated relative to the rod 04, wherein the rotational axis either lies in the longitudinal axis or runs parallel to it. Upon rotation of the rod 04 relative to the cutting unit, the spring arms 18 are also brought to a displacement, since the position of the lower side edges of the rod 04 changes. The pivoting of the spring arms 18 is illustrated by the respective dashed position. The rotation of the rod 04 is by stop surfaces 21 within the recording 12 limited. The spring stiffness of the spring arms is dimensioned, for example, such that a force in the range of 5 to 30 N occurs at the end of the spring arm 18 when the cutting unit is twisted as far as possible.

Die Rastzunge 14 sowie die Federarme 18 sind einstückig mit der Aufnahme 12 und der Anschlusskuppel 11 ausgebildet, vorzugsweise als Kunststoffspritzgussteil. Ebenfalls ist es vorteilhaft, wenn die Trägerarme 09 im selben Herstellungsschritt angeformt werden und auch die weiteren Gehäusebestandteile der Klingeneinheit in diesem einzigen Spritzgussvorgang erzeugt werden.The latching tongue 14 and the spring arms 18 are formed integrally with the receptacle 12 and the connection dome 11, preferably as a plastic injection molded part. It is also advantageous if the support arms 09 are formed in the same manufacturing step and also the other housing components of the blade unit are produced in this single injection molding process.

Eine bevorzugte Ausführungsform zeichnet sich dadurch aus, dass die Gehäuseteile der Klingeneinheit, die Trägerarme, die gesamte Aufnahme und zumindest die tragenden Abschnitte der Filmscharniere aus ein und demselben Kunststoff hergestellt sind. Bei Anwendung einer Zweikomponenten-Kunststoffspritzvorrichtung können auch weitere weichelastische Komponenten der Filmscharniere und die Schaumkante in einem entsprechenden Verfahrensgang angeformt werden. Die Herstellung der gesamten Schneideinheit vereinfacht sich dadurch erheblich.A preferred embodiment is characterized in that the housing parts of the blade unit, the support arms, the entire receptacle and at least the supporting portions of the film hinges are made of one and the same plastic. When using a two-component plastic injection device and other soft elastic components of the film hinges and the foam edge can be formed in a corresponding process step. The production of the entire cutting unit simplifies considerably.

Fig. 4 zeigt eine vereinfachte Querschnittsansicht einer abgewandelten Ausführungsform des Rasierers. Wesentliche Unterschiede ergeben sich vor allem aus der veränderten Formgebung des Stabes 04 und der Aufnahme 12. Das Funktionsprinzip bleibt aber unverändert. Der Stab 04 ist nur in axialer Richtung in der Aufnahme 12 festgelegt, während er um eine Drehachse drehbar bleibt, innerhalb des vorbestimmten Winkelbereichs. An der Innenkante der Führungsrippe 19 kommt es zu einer linienförmigen Anlage, sodass dort die Drehachse liegt. Die Federarme 18 bringen eine Federkraft auf den Stab 04 auf, sodass dieser beim Ausbleiben eines externen Momentes in eine Nulllage gedrängt wird, während die Federarmen 18 seitlich nach außen schwenken, wenn ein die Federkraft überwindendes Moment eingeprägt wird. Fig. 4 shows a simplified cross-sectional view of a modified embodiment of the razor. Significant differences arise mainly from the changed shape of the rod 04 and the recording 12. The principle of operation remains unchanged. The rod 04 is fixed only in the axial direction in the receptacle 12, while it remains rotatable about an axis of rotation, within the predetermined angular range. At the inner edge of the guide rib 19, there is a linear system, so there is the axis of rotation. The spring arms 18 apply a spring force to the rod 04, so that it is urged in the absence of an external moment in a zero position, while the spring arms 18 pivot laterally outwards when a spring force overcoming moment is impressed.

Die vorliegende Erfindung betrifft darüber hinaus die auswechselbare Schneideinheit, wie sie bereits zuvor beschrieben wurde. Regelmäßig werden solche Schneideinheiten als Austauschelemente für entsprechende Rasierer angeboten, wobei der Griff des Rasierers mehrfach verwendet wird.The present invention further relates to the interchangeable cutting unit as already described above. Such cutting units are regularly offered as replacement elements for corresponding razors, the handle of the razor being used several times.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

01 -01 -
Rasiererrazor
02 -02 -
Schneideinheitcutting unit
03 -03 -
GriffHandle
04 -04 -
StabRod
05 -05 -
 
06 -06 -
Klingeneinheitblade unit
07 -07 -
Klingenhalterungblade holder
08 -08 -
Filmscharnierfilm hinge
09 -09 -
Trägerarmesupport arms
10 -10 -
 
11 -11 -
Anschlusskuppelconnection dome
12 -12 -
Aufnahmeadmission
13 -13 -
Bedienflächeoperating surface
14 -14 -
Rastzungecatch tongue
15 -15 -
 
16 -16 -
Rastnaselocking lug
17 -17 -
Rastmuldecatch recess
18 -18 -
Federarmespring arms
19 -19 -
Führungsrippeguide rib
20 -20 -
 
21 -21 -
Anschlagflächenstop surfaces

Claims (10)

  1. A razor (01) having a handle (03), a cutting unit (02) and a coupling portion (04, 12) for attaching the cutting unit (02) to the handle (03), wherein the cutting unit (02) comprises a blade unit (06) having one or more blades, wherein the blade unit (06) is pivotable about a pivot axis extending parallel to the longitudinal extent of the blades, wherein the coupling portion comprises a receiver (12) and a bar (04) which is rotatably mounted therein, wherein the rotational axis of the rotary bearing formed between the receiver (12) and the bar (04) extends substantially perpendicular to the pivot axis of the blade unit and substantially parallel to the longitudinal axis of the bar (04) and wherein the rotary bearing permits a rotation of the cutting unit (02) relative to the handle (03), characterised in that the coupling portion (04, 12) serves for the releasable attachment of the cutting unit (02) to the handle (03) and in that the receiver (12) comprises at least one spring element (18) which urges the bar (04) into a resting position, wherein the bar (04) is rotatable from this resting position in both directions relative to the receiver (12), in each case by a rotational angle of at least 1° and at most 10°.
  2. The razor according to Claim 1, characterised in that the bar (04) is rotatable from the resting position in both directions relative to the receiver (12) by in each case 5°, preferably by in each case 2°.
  3. The razor according to Claim 2, characterised in that the receiver (12) comprises two spring arms (18) configured on opposing wall portions, the free ends thereof in each case coming to bear against the bar (04) inserted into the receiver.
  4. The razor according to one of Claims 1 to 3, characterised in that the receiver (12) of the coupling portion is an integral component of the cutting unit (02), whilst the bar (04) is configured as an extension of the handle (03) which is able to be inserted into the receiver (12) for attaching the cutting unit (02).
  5. The razor according to one of Claims 1 to 4, characterised in that the receiver (12) has a non-circular opening cross section and the bar (04) has a polygonal cross section, the surface thereof being between 10% and 50% smaller than the opening cross section of the receiver (12).
  6. The razor according to one of Claims 1 to 5, characterised in that the blade unit (06) is unreleasably connected to the receiver (12) of the coupling portion.
  7. The razor according to Claim 6, characterised in that the pivot axis of the blade unit is formed by two film hinges (08) which are attached to the lateral edges of the blade unit (06) and which connect said blade unit to the receiver (12) via two supporting arms (09).
  8. The razor according to one of Claims 1 to 7, characterised in that the receiver (12) comprises a resiliently mounted latching tongue (14) having a latching lug (16), which when inserting the bar (04) engages in a latching recess (17) configured therein, wherein the latching connection produced thereby secures the bar (04) in the receiver (12) in the direction of its longitudinal axis and continues to allow the rotation of the receiver (12) about the bar (04) .
  9. The razor according to one of Claims 1 to 8, characterised in that in the receiver (12) the bar (04) comes to bear only along bearing lines and/or bearing points, in particular only at the free end of the two spring arms (18), the latching lug (16) and one of the guide ribs (19) opposing the latching lug (16) .
  10. A replaceable cutting unit (02) for a razor having a blade unit (06), which comprises one or more blades and is pivotable about a pivot axis extending parallel to the longitudinal extent of the blades, and having a receiver (12) for attaching the cutting unit (02) to a handle (03), characterised in that the receiver (12) provides bearing lines and/or bearing points for a bar (04) of the handle (03) which is able to be inserted into the receiver and which is polygonal in cross section, said bearing lines and/or bearing points being formed by:
    - free ends of two spring arms (18) configured on opposing wall portions;
    - a latching lug (16) which protrudes into a hollow space of the receiver (12) and which is configured on a resiliently mounted latching tongue (14);
    - a guide rib (19) opposing the latching lug (16).
EP14153361.2A 2014-01-31 2014-01-31 Shaver with a handle and a rotatable cutting unit Active EP2902156B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES14153361.2T ES2660443T3 (en) 2014-01-31 2014-01-31 Razor with a handle and a rotating cutting unit
EP14153361.2A EP2902156B1 (en) 2014-01-31 2014-01-31 Shaver with a handle and a rotatable cutting unit
US14/258,769 US9522472B2 (en) 2014-01-31 2014-04-22 Razor with a handle and rotatable cutting unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14153361.2A EP2902156B1 (en) 2014-01-31 2014-01-31 Shaver with a handle and a rotatable cutting unit

Publications (2)

Publication Number Publication Date
EP2902156A1 EP2902156A1 (en) 2015-08-05
EP2902156B1 true EP2902156B1 (en) 2017-11-22

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Country Status (3)

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US (1) US9522472B2 (en)
EP (1) EP2902156B1 (en)
ES (1) ES2660443T3 (en)

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DE102023100423B3 (en) 2023-01-10 2024-04-18 Feintechnik Gmbh Eisfeld Ejector button with integrated reset function for a razor handle, razor handle and wet razor

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Also Published As

Publication number Publication date
US20150217466A1 (en) 2015-08-06
ES2660443T3 (en) 2018-03-22
EP2902156A1 (en) 2015-08-05
US9522472B2 (en) 2016-12-20

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