EP0611634B1 - Multi purpose knife - Google Patents

Multi purpose knife Download PDF

Info

Publication number
EP0611634B1
EP0611634B1 EP94102171A EP94102171A EP0611634B1 EP 0611634 B1 EP0611634 B1 EP 0611634B1 EP 94102171 A EP94102171 A EP 94102171A EP 94102171 A EP94102171 A EP 94102171A EP 0611634 B1 EP0611634 B1 EP 0611634B1
Authority
EP
European Patent Office
Prior art keywords
blade
grip part
cover
teeth
slide
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
Application number
EP94102171A
Other languages
German (de)
French (fr)
Other versions
EP0611634A1 (en
Inventor
Klemens Degen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolfcraft GmbH
Original Assignee
Wolfcraft GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolfcraft GmbH filed Critical Wolfcraft GmbH
Publication of EP0611634A1 publication Critical patent/EP0611634A1/en
Application granted granted Critical
Publication of EP0611634B1 publication Critical patent/EP0611634B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00Hand knives with one or more detachable blades
    • B26B5/001Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/003Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use comprising retraction means for the blade or the blade holder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00Hand knives with one or more detachable blades
    • B26B5/001Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use

Definitions

  • the invention relates to a multi-purpose knife in the form of an elongated handle, from the two ends of which a blade can be extended, which are each carried by movable blade holders, which can be locked in their inwardly pushed basic position.
  • Such multi-purpose knives can be equipped at one end with a trapezoidal blade and at the other end with a hook blade, so that, depending on the cutting work to be carried out, a suitable blade is available without having to change the blade.
  • a generic multi-purpose knife is known in which the two blade holders are penetrated by a locking pin graduated in diameter, which can be pressed by hand against the force of a return spring into a release position, after which, by means of a spinning movement carried out by hand, either one or the other blade holder together with the blade is extended into a working position. After releasing the locking pin, it then secures the extended blade holder in its extended position Position and the blade holder not ejected in its inserted basic position.
  • the invention has for its object to provide a generic multi-purpose knife, in which it is ensured that only one of the blades can be moved out of the handle, so as to reliably rule out the risk of injury described.
  • an actuating slide engages between the two blade holders, with which one or the other blade holder can be moved outwards against the force of a return spring, and in that the Operating slide in the direction of movement between two manually operable interchangeable stops, of which only one is always movable in the release position.
  • the respective blade holder to be extended is advanced by means of the actuating slide.
  • this slide in the invention is bordered between interchangeable stops which hold the actuating slide in its two Lock directions of movement. Only when one of the stops is brought out of its stop position can the actuating slide be moved in this direction.
  • the two interchangeable stops are connected to one another in such a way that they can only be brought out alternately from their stop position, that is, one stop always remains in the stop position.
  • the change stops are arranged at the ends of a rocker. By turning the rocker, one stop can thus be released, while the other is inevitably pivoted even deeper into its stop position.
  • the actuating slide consists of a sliding foot guided in the knife and engaging on the blade holders and of a handle part which can be pressed into the sliding foot against the force of a return spring, that the handle part in the basic position with a toothing in a Knife body engages trained row of teeth and only in the depressed position, in which its toothing is disengaged from the row of teeth, is displaceable and, when released, to lock its respective feed position, it comes back into engagement with the row of teeth with its toothing.
  • This design makes handling the multi-purpose knife very easy. Extending positions for the blade of different widths can be selected, each of which is automatically locked by the interlocking teeth after the actuating slide has been released.
  • the multi-purpose knife is mirror-symmetrical to its transverse central plane and has a housing designed as a handle, which consists of a base body 1, a cover 2 and two locking slides 3, 4.
  • the shell-shaped base body has a C-profile at its end sections 5, 6, cf. 7 and 8, and between these sections 5, 6 a recess 7 for receiving the cover 2.
  • the locking slides 3, 4 are inserted in a manner known per se, each of which has a latching lug 9 on a tongue 8 which can be pressed down and which engages in latching receptacles 10 formed on the inside of the cover 2, cf. 15.
  • the cover 2 is fastened to the base body 1 by means of a screw 11. For a blade change, only the slide 3 or 4 are removed.
  • the cover 2 On its upper narrow side, the cover 2 is provided with a corner recess 12 and the base body 1 with a corner recess 13, which are of the same depth and together form a guide slot for the handle part 14 of an actuating slide 15.
  • the grip part 14 has a leg 16 directed downwards, cf. 11 and 12, a toothing 17 which, in the position according to FIGS. 3 and 4, engages in a row of teeth 18 which is formed below the corner recess 13 on the base body 1 and extends over the entire length of the corner recess 13.
  • the teeth of the row of teeth 18, as can be seen in particular from FIG. 3, are directed towards the cover 2.
  • the actuating slide 15 further comprises a sliding foot 19 which is guided in the groove 20 of the base body 1.
  • a return spring 22 is arranged in a stepped recess 21 in the sliding foot 19, cf. 9 and 10.
  • the grip part 14 is seated on the return spring 22 with a shoulder surface and projects into the return spring 22 with an extension 23.
  • the grip part 14 can be pressed against the restoring force of the restoring spring 22 until its upper plate 24, which is provided with corrugation, strikes the row of teeth 18 or the base of the corner recess 12 on the cover side. In this depressed position, the toothing 17 of the handle part 14 is out of engagement with the row of teeth 18, so that the slide can be moved from one position or the other, shown in FIG. 4, to one side or the other, and when the handle part 14 is released again locked on the teeth row 18.
  • a manually operated rocker 37 is pivotally mounted on the cover 2 about an axis 38, which is directed perpendicular to the direction of displacement of the actuating slide.
  • the rocker 37 has at its ends interchangeable stops 39, 40, which in the basic position according to FIG.
  • FIG. 13 and 14 show a modified embodiment of a rocker 42 having the change stops 39, 40.
  • actuating knobs 43, 44 are provided on the rocker 42 in each case opposite the change stops 39, 40.
  • the rocker 42 is pivotally mounted on the cover 2 (cf. FIG. 15) about the axis 45 and lies in an elongated hole 46 of the cover. In the basic position, both crests 43, 44 protrude somewhat from the outside of the lid. By pressing one of the crests 43 or 44, the diagonally opposite stop 40 or 39 in Release position pivoted.
  • the rocker 42 is provided with clamping knobs 47, which must be pushed over the edges of the elongated hole 16 when the rocker is adjusted and thus secure the respective position of the rocker 42.
  • the multi-purpose knife according to the invention is equipped with a magazine for storage blades.
  • This magazine is formed by a magazine cover 48 screwed onto the uninterrupted outside of the base body 1, which covers a magazine space sufficient to accommodate at least two storage blades 49, 50 arranged one behind the other in the longitudinal direction.
  • the magazine cover 48 is bordered on its longitudinal edges between two raised border edges 51, 52 of the base body 1.

Abstract

A multi-purpose knife is shown and described which takes the form of an elongated handle, from each end of which there can optionally be extended a blade (29, 30), each blade (29, 30) being supported by inherently displaceable blade supports (27, 28) which can be locked in their pushed-inwards basic position. To ensure that only one of the two blades (29, 30) can be extended at any one time, provision is made for an actuating slide (15) to engage between the two blade holders (27, 28) by means of which slide (15) in each case one or other of the blade holders (27, 28) can be moved outwards against the resistance of a restoring spring (31) and for the actuating slide (15) to be gripped in the basic position in the direction of movement between the two manually operated alternating stops (39, 40), only one of which can be moved into the release position at any one time. <IMAGE>

Description

Die Erfindung betrifft ein Mehrzweckmesser in Form eines länglichen Handgriffes, aus dessen beiden Enden wahlweise je eine Klinge ausfahrbar ist, die von jeweils für sich verschiebbaren Klingenhaltern getragen sind, die in ihrer einwärts geschobenen Grundstellung arretierbar sind.The invention relates to a multi-purpose knife in the form of an elongated handle, from the two ends of which a blade can be extended, which are each carried by movable blade holders, which can be locked in their inwardly pushed basic position.

Derartige Mehrzweckmesser können an einem Ende mit einer Trapezklinge und am anderen Ende mit einer Hakenklinge bestückt werden, so daß je nach auszuführender Schneidarbeit eine geeignete Klinge zur erfügung steht, ohne daß ein Klingenwechsel vorgenommen werden muß.Such multi-purpose knives can be equipped at one end with a trapezoidal blade and at the other end with a hook blade, so that, depending on the cutting work to be carried out, a suitable blade is available without having to change the blade.

Durch die DE-OS 30 06 968, Fig. 3 und 4, ist ein gattungsgemäßes Mehrzweckmesser bekannt, bei welchem die beiden Klingenhalter von einem im Durchmesser abgestuften Arretierstift durchsetzt sind, welcher von Hand gegen die Kraft einer Rückstellfeder in eine Freigabestellung niedergedrückt werden kann, wonach durch eine mit der Hand ausgeführte Schleuderbewegung entweder der eine oder der andere Klingenhalter samt Klinge in eine Arbeitsstellung ausgefahren wird. Nach Loslassen des Arretierstiftes sichert dieser dann den ausgefahrenen Klingenhalter in seiner ausgefahrenen Stellung und den nicht herausgeschleuderten Klingenhalter in seiner eingeschobenen Grundstellung. Bei dem bekannten Messer ist aber kritisch, daß bei niedergedrücktem Arretierstift beide Klingenhalter gleichzeitig entriegelt sind, was dazu führen kann, daß das dem Arm, speziell den Puls der Bedienungsperson zugewandte Messer ungewollt ebenfalls ausgefahren werden kann, was die Gefahr erheblicher Verletzungen birgt.From DE-OS 30 06 968, Fig. 3 and 4, a generic multi-purpose knife is known in which the two blade holders are penetrated by a locking pin graduated in diameter, which can be pressed by hand against the force of a return spring into a release position, after which, by means of a spinning movement carried out by hand, either one or the other blade holder together with the blade is extended into a working position. After releasing the locking pin, it then secures the extended blade holder in its extended position Position and the blade holder not ejected in its inserted basic position. In the known knife, however, it is critical that when the locking pin is depressed, both blade holders are unlocked at the same time, which can lead to the knife, which is directed towards the arm, especially the pulse of the operator, also being inadvertently extended, which harbors the risk of considerable injuries.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Mehrzweckmesser zu schaffen, bei dem sichergestellt ist, daß immer nur eine der Klingen aus dem Handgriff herausfahrbar ist, um so die beschriebene Verletzungsgefahr zuverlässig auszuschließen.The invention has for its object to provide a generic multi-purpose knife, in which it is ensured that only one of the blades can be moved out of the handle, so as to reliably rule out the risk of injury described.

Ausgehend von einem Mehrzweckmesser der eingangs genannten Art, ist die Lösung dieser Aufgabe erfindungsgemäß dadurch erreicht, daß zwischen die beiden Klingenhalter ein Betätigungsschieber greift, mit dem jeweils der eine oder der andere Klingenhalter gegen die Kraft einer Rückholfeder nach außen hin bewegbar ist, und daß der Betätigungsschieber in Bewegungsrichtung zwischen zwei von Hand betätigbaren Wechselanschlägen eingefaßt ist, von denen immer nur einer in Freigabestellung bewegbar ist.Starting from a multi-purpose knife of the type mentioned, the solution to this problem is achieved according to the invention in that an actuating slide engages between the two blade holders, with which one or the other blade holder can be moved outwards against the force of a return spring, and in that the Operating slide in the direction of movement between two manually operable interchangeable stops, of which only one is always movable in the release position.

Bei dem Mehrzweckmesser nach der Erfindung wird der jeweils auszufahrende Klingenhalter, - wie bei einem nur mit einer Klinge ausgerüstetem Tapetenmesser, Kartonmesser oder dgl. bekannt -, mittels des Betätigungsschiebers vorgeschoben. In der Grundstellung ist dieser Schieber bei der Erfindung jedoch zwischen Wechselanschlägen eingefaßt, die den Betätigungsschieber in seinen beiden Bewegungsrichtungen arretieren. Erst wenn einer der Anschläge aus seiner Anschlagstellung herausgebracht ist, kann der Betätigungsschieber in diese Richtung verschoben werden. Die beiden Wechselanschläge sind hierbei aber so miteinander verbunden, daß diese nur wechselweise aus ihrer Anschlagstellung herausführbar sind, also immer ein Anschlag in Anschlagstellung verbleibt. Wenn einer der Klingenhalter in Arbeitsstellung ausgefahren ist, bleibt der andere Klingenhalter durch die Rückholfeder zwangsläufig in seiner zurückgezogenen Grundstellung und bleibt er durch den ihm zugeordneten, in Anschlagstellung sich befindlichen Anschlag gesichert. Sollte der Betätigungsschieber bei der Ausführung von Schneidarbeiten ungewollt zurückgeschoben werden, kann er folglich nur bis zu diesem Anschlag zurückbewegt werden. Ein ungewolltes Ausfahren der rückwärtigen, dem Arm der Bedienungsperson zugewandten Klinge ist damit sicher ausgeschlossen.In the multi-purpose knife according to the invention, the respective blade holder to be extended, as is known in the case of a wallpaper knife, cardboard knife or the like equipped with only one blade, is advanced by means of the actuating slide. In the basic position, this slide in the invention, however, is bordered between interchangeable stops which hold the actuating slide in its two Lock directions of movement. Only when one of the stops is brought out of its stop position can the actuating slide be moved in this direction. However, the two interchangeable stops are connected to one another in such a way that they can only be brought out alternately from their stop position, that is, one stop always remains in the stop position. When one of the blade holders is extended into the working position, the other blade holder inevitably remains in its retracted basic position by the return spring and remains secured by the stop which is assigned to it and is in the stop position. Should the actuating slide be pushed back unintentionally when performing cutting work, it can therefore only be moved back up to this stop. An unintentional extension of the rear blade facing the operator's arm is thus reliably ruled out.

Gemäß einer bevorzugten Ausführungsform der Erfindung sind die Wechselanschläge an den Enden einer Wippe angeordnet. Durch Umlegen der Wippe kann somit ein Anschlag freigegeben werden, während der andere zwangsläufig noch tiefer in seine Anschlagstellung geschwenkt wird.According to a preferred embodiment of the invention, the change stops are arranged at the ends of a rocker. By turning the rocker, one stop can thus be released, while the other is inevitably pivoted even deeper into its stop position.

In Ausgestaltung der Erfindung kann vorgesehen werden, daß der Betätigungsschieber aus einem im Messer geführten und an den Klingenhaltern angreifenden Schiebefuß und aus einem gegen die Kraft einer Rückstellfeder in den Schiebefuß hinein niederdrückbaren Griffteil besteht, daß der Griffteil in der Grundstellung mit einer Verzahnung in eine am Messerkörper ausgebildete Zahnreihe eingreift und nur in niedergedrückter Stellung, in der seine Verzahnung außer Eingriff mit der Zahnreihe gebracht ist, verschiebbar ist und bei Freigabe, zur Arretierung seiner jeweiligen Vorschubstellung, wieder mit seiner Verzahnung in Eingriff mit der Zahnreihe gelangt. Durch diese Ausbildung ist die Handhabung des Mehrzweckmessers sehr einfach. Es können unterschiedlich weite Ausfahrstellungen für die Klinge gewählt werden, die jeweils durch die ineinandergreifenden Verzahnungen nach Freigabe des Betätigungsschiebers automatisch arretiert werden.In an embodiment of the invention it can be provided that the actuating slide consists of a sliding foot guided in the knife and engaging on the blade holders and of a handle part which can be pressed into the sliding foot against the force of a return spring, that the handle part in the basic position with a toothing in a Knife body engages trained row of teeth and only in the depressed position, in which its toothing is disengaged from the row of teeth, is displaceable and, when released, to lock its respective feed position, it comes back into engagement with the row of teeth with its toothing. This design makes handling the multi-purpose knife very easy. Extending positions for the blade of different widths can be selected, each of which is automatically locked by the interlocking teeth after the actuating slide has been released.

Bei Tapetenmessern, Kartonmessern oder dgl., die nur an ihrem vorderen Ende mit einer einzigen ausfahrbaren Klinge bestückt sind, ist es bekannt, das rückwärtige Ende des Handgriffes als Vorratsmagazin für Klingen auszubilden. Um auch bei dem Doppelklingen-Messer nach der Erfindung einen Klingenvorrat mitführen zu können, kann in weiterer Ausgestaltung der Erfindung vorgesehen werden, daß an der Außenseite des Griff-Grundkörpers ein abnehmbarer, sich über den größten Teil der Handgrifflänge erstreckender Magazindeckel befestigt ist, der einen zur Aufnahme von mindestens zwei in Längsrichtung hintereinander angeordneten Vorratsklingen ausreichenden Magazinraum überdeckt. Hierdurch wird der Handgriff nur geringfügig verbreitert, was die Griffigkeit des Messers nicht beeinträchtigt.In the case of wallpaper knives, cardboard knives or the like, which are only equipped with a single extendable blade at their front end, it is known to design the rear end of the handle as a storage magazine for blades. In order to be able to carry a supply of blades with the double-blade knife according to the invention, it can be provided in a further embodiment of the invention that a removable magazine cover, which extends over most of the length of the handle, is attached to the outside of the handle base body, one sufficient to accommodate at least two storage blades arranged one behind the other in the longitudinal direction. As a result, the handle is only slightly widened, which does not affect the grip of the knife.

Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Further refinements of the invention are specified in the subclaims.

Der Gegenstand der Erfindung wird im folgenden anhand der Zeichnungen näher beschrieben. In den Zeichnungen zeigen:

Fig. 1
Ein Mehrzweckmesser nach der Erfindung in Seitenansicht,
Fig. 2
eine Rückansicht auf das Mehrzweckmesser,
Fig. 3
eine Draufsicht auf das Mehrzweckmesser,
Fig. 4
in vergrößertem Maßstab das Mehrzweckmesser bei abgehobenem Deckel, wobei ein Klingenhalter in ausgefahrener Stellung und der andere in seiner Grundstellung gezeigt sind,
Fig. 5
eine Ansicht auf die Innenseite des Grundkörpers des Messers,
Fig. 6
eine Draufsicht auf den Grundkörper nach Fig. 5,
Fig. 7
eine Stirnansicht auf den Grundkörper, in Fig. 5 in Richtung des Pfeiles VII gesehen,
Fig. 8
einen Schnitt gemäß der Linie VIII-VIII in Fig. 6,
Fig. 9
in Seitenansicht den Griffteil des Betätigungsschiebers,
Fig. 10
einen Schnitt gemäß der Linie X-X in Fig. 9,
Fig. 11
eine Seitenansicht auf den Schiebefuß des Betätigungsschiebers,
Fig. 12
den Schiebefuß in Richtung des Pfeiles XII in Fig. 11 gesehen,
Fig. 13
eine alternative Ausführungsform einer die Wechselanschläge aufweisenden Wippe,
Fig. 14
einen Schnitt gemäß der Linie XIV-XIV in Fig. 13 und
Fig. 15
eine Ansicht auf die Innenseite des Deckels des Handgriffes, wobei dieser Deckel hier speziell der Wippe nach den Fig. 13 und 14 angepaßt ist.
The object of the invention is described below with reference to the drawings. The drawings show:
Fig. 1
A multi-purpose knife according to the invention in side view,
Fig. 2
a rear view of the utility knife,
Fig. 3
a top view of the utility knife,
Fig. 4
on an enlarged scale the multi-purpose knife with the cover removed, one blade holder being shown in the extended position and the other in its basic position,
Fig. 5
a view of the inside of the main body of the knife,
Fig. 6
5 shows a plan view of the base body according to FIG. 5,
Fig. 7
3 shows an end view of the base body, seen in the direction of arrow VII in FIG. 5,
Fig. 8
6 shows a section along the line VIII-VIII in FIG. 6,
Fig. 9
in side view the handle part of the operating slide,
Fig. 10
4 shows a section along the line XX in FIG. 9,
Fig. 11
a side view of the sliding foot of the Actuating slide,
Fig. 12
seen the sliding foot in the direction of arrow XII in Fig. 11,
Fig. 13
an alternative embodiment of a rocker having the interchangeable stops,
Fig. 14
a section along the line XIV-XIV in Fig. 13 and
Fig. 15
a view of the inside of the lid of the handle, this lid here is specially adapted to the rocker according to FIGS. 13 and 14.

Das Mehrzweckmesser ist spiegelsymmetrisch zu seiner Quermittelebene ausgebildet und besitzt ein als Handgriff ausgebildetes Gehäuse, welches aus einem Grundkörper 1, einem Deckel 2 und zwei Verschlußschiebern 3, 4 besteht. Der schalenförmige Grundkörper weist an seinen Endabschnitten 5, 6 ein C-Profil, vgl. Fig. 7 und 8, und zwischen diesen Abschnitten 5, 6 eine Ausnehmung 7 zur Aufnahme des Deckels 2 auf. In die C-förmigen Endabschnitte sind in an sich bekannter Weise die Verschlußschieber 3, 4 eingeschoben, die jeweils an einer niederdrückbaren Zunge 8 eine Rastnase 9 aufweisen, die in an der Innenseite des Deckels 2 ausgebildete Rastaufnahmen 10 eingreifen, vgl. auch Fig. 15. Der Deckel 2 ist mittels einer Schraube 11 am Grundkörper 1 befestigt. Für einen Klingenwechsel werden lediglich die Verschlußschieber 3 bzw. 4 abgenommen.The multi-purpose knife is mirror-symmetrical to its transverse central plane and has a housing designed as a handle, which consists of a base body 1, a cover 2 and two locking slides 3, 4. The shell-shaped base body has a C-profile at its end sections 5, 6, cf. 7 and 8, and between these sections 5, 6 a recess 7 for receiving the cover 2. In the C-shaped end sections, the locking slides 3, 4 are inserted in a manner known per se, each of which has a latching lug 9 on a tongue 8 which can be pressed down and which engages in latching receptacles 10 formed on the inside of the cover 2, cf. 15. The cover 2 is fastened to the base body 1 by means of a screw 11. For a blade change, only the slide 3 or 4 are removed.

An ihrer oberen Schmalseite sind der Deckel 2 mit einer Eckausnehmung 12 und der Grundkörper 1 mit einer Eckausnehmung 13 versehen, die gleich tief sind und zusammen einen Führungsschlitz für den Griffteil 14 eines Betätigungsschiebers 15 bilden. Der Griffteil 14 weist an einem nach unten gerichteten Schenkel 16, vgl. auch die Fig. 11 und 12, eine Verzahnung 17 auf, die in der Stellung nach den Fig. 3 und 4 in eine unterhalb der Eckausnehmung 13 am Grundkörper 1 ausgebildete, sich über die gesamte Länge der Eckausnehmung 13 erstreckende Zahnreihe 18 eingreift. Die Zähne der Zahnreihe 18 sind, wie insbesondere aus Fig. 3 ersichtlich ist, zum Deckel 2 hin gerichtet. Der Betätigungsschieber 15 umfaßt ferner einen Schiebefuß 19, der in der Nut 20 des Grundkörpers 1 geführt ist. In einer abgestuften Ausnehmung 21 des Schiebefußes 19 ist eine Rückstellfeder 22 angeordnet, vgl. auch die Fig. 9 und 10. Der Griffteil 14 sitzt auf der Rückstellfeder 22 mit einer Schulterfläche auf und ragt mit einer Verlängerung 23 in die Rückstellfeder 22 hinein. Der Griffteil 14 kann gegen die Rückstellkraft der Rückstellfeder 22 soweit niedergedrückt werden, bis seine obere mit einer Riffelung versehene Platte 24 auf die Zahnreihe 18 bzw. den Grund der deckelseitigen Eckausnehmung 12 auftrifft. In dieser niedergedrückten Stellung ist die Verzahnung 17 des Griffteiles 14 außer Eingriff mit der Zahnreihe 18, so daß der Schieber aus der in Fig. 4 gezeigten, teilweise vorgeschobenen Stellung nach der einen oder anderen Seite verschoben werden kann und sich bei Freigabe des Griffteiles 14 wieder an der Zahnreihe 18 arretiert.On its upper narrow side, the cover 2 is provided with a corner recess 12 and the base body 1 with a corner recess 13, which are of the same depth and together form a guide slot for the handle part 14 of an actuating slide 15. The grip part 14 has a leg 16 directed downwards, cf. 11 and 12, a toothing 17 which, in the position according to FIGS. 3 and 4, engages in a row of teeth 18 which is formed below the corner recess 13 on the base body 1 and extends over the entire length of the corner recess 13. The teeth of the row of teeth 18, as can be seen in particular from FIG. 3, are directed towards the cover 2. The actuating slide 15 further comprises a sliding foot 19 which is guided in the groove 20 of the base body 1. A return spring 22 is arranged in a stepped recess 21 in the sliding foot 19, cf. 9 and 10. The grip part 14 is seated on the return spring 22 with a shoulder surface and projects into the return spring 22 with an extension 23. The grip part 14 can be pressed against the restoring force of the restoring spring 22 until its upper plate 24, which is provided with corrugation, strikes the row of teeth 18 or the base of the corner recess 12 on the cover side. In this depressed position, the toothing 17 of the handle part 14 is out of engagement with the row of teeth 18, so that the slide can be moved from one position or the other, shown in FIG. 4, to one side or the other, and when the handle part 14 is released again locked on the teeth row 18.

In sich gegenüberliegenden Ecknuten 25, 26 des Grundkörpers 1 sind zwei Klingenhalter 27, 28 geführt, von denen einer mit einer Trapezklinge 29 und der andere mit einer Hakenklinge 30 bestückt sind. Zwischen den beiden Klingenhaltern 27, 28 ist eine Zug- oder Rückholfeder 31 gespannt, welche die Klingenhalter 28 und 27 gegen die am Grundkörper 1 ausgebildeten Anschlagflächen 32, 33 zieht. Der Schenkel 16 des Griffteiles 14 weist eine Breite gleich dem Abstand zwischen den Anschlagflächen 32, 33 auf. Bei in Mittenstellung nach Fig. 3 befindlichem Betätigungsschieber 15 liegen beide Klingenhalter 27, 28 an dem Schenkel 16 des Griffteiles 14 an. Der Griffteil 14 weist zu beiden Seiten seines unteren Endes aufwärts gerichtete Haken 34, 35 auf, die in der Grundstellung in nach unten offene Verhakungsaufnahmen 36 der Klingenhalter 27, 28 eingreifen. Bei Niederdrücken des Griffteiles 14 werden diese Haken 34, 35 entkuppelt, so daß der Schieber 15 in der einen oder anderen Richtung unter Mitnahme jeweils eines der Klingenhalter 27, 28 verschoben werden kann. Nach Freigabe des Griffteiles 14 (vgl. Fig. 4) rastet der Haken 34 in die zugeordnete Verhakungsaufnahme 36 seines Klingenhalters 27 wieder ein, so daß der Klingenhalter 27 in der jeweiligen Arbeitsstellung formschlüssig mit dem Betätigungsschieber 15 gekuppelt ist.In opposite corner grooves 25, 26 of the base body 1, two blade holders 27, 28 are guided, one of which is equipped with a trapezoidal blade 29 and the other with a hooked blade 30. A tension or return spring 31 is tensioned between the two blade holders 27, 28 and pulls the blade holders 28 and 27 against the stop surfaces 32, 33 formed on the base body 1. The leg 16 of the handle part 14 has a width equal to the distance between the stop surfaces 32, 33. When the operating slide 15 is in the central position according to FIG. 3, both blade holders 27, 28 bear against the leg 16 of the handle part 14. The handle part 14 has hooks 34, 35 directed upwards on both sides of its lower end, which in the basic position engage in hooking receptacles 36 of the blade holders 27, 28 which are open at the bottom. When the handle part 14 is depressed, these hooks 34, 35 are uncoupled, so that the slide 15 can be moved in one direction or the other, taking one of the blade holders 27, 28 with it. After release of the handle part 14 (see FIG. 4), the hook 34 snaps into the associated hooking receptacle 36 of its blade holder 27 again, so that the blade holder 27 is positively coupled to the actuating slide 15 in the respective working position.

Sollte der Griffteil 14 beispielsweise in der in Fig. 4 gezeigten Stellung ungewollt niedergedrückt werden, kann der Schieber - soweit bisher beschrieben - nach rechts hin bis zum Ende der Ausnehmung 13 verschoben werden, wobei die in Fig. 4 rechts gezeigte Trapezklinge 29 voll ausgefahren würde. Geschieht dies während eines Arbeitsvorganges, besteht eine große Gefahr, daß die Trapezklinge 29 den Arm, speziell den Puls, der Bedienungsperson verletzt. Um dieser Gefahr vorzubeugen, ist am Deckel 2 eine von Hand betätigbare Wippe 37 um eine Achse 38 schwenkbar gelagert, welche senkrecht zur Verschieberichtung des Betätigungsschiebers gerichtet ist. Die Wippe 37 besitzt an ihren Enden Wechselanschläge 39, 40, die in der Grundstellung nach Fig. 3 den plattenförmigen Schenkel 16 des Betätigungsschiebers 15 zwischen sich einlassen, so daß der Betätigungsschieber nach beiden Richtungen hin arretiert ist. Durch Schwenken der Wippe 37 an ihrem Betätigungshebel 41 kann immer nur einer der Wechselanschläge 39, 40 aus der Anschlagstellung zurückgeschwenkt werden, so daß der Betätigungsschieber 15 immer nur zu dieser einen, freigegebenen Stellung verschoben und dementsprechend immer nur eine der Klingen 29 bzw. 30 ausgefahren werden kann. Bei der Stellung nach Fig. 4, bei der der Anschlag 39 in die Freigabestellung gebracht ist, befindet sich der andere Anschlag 40 zwangsläufig in seiner Anschlagstellung, so daß der ßetätigungsschieber 15 maximal nur bis zu dem Anschlag 40 hin nach hinten verschoben werden kann.If, for example, the handle part 14 is pressed down unintentionally in the position shown in FIG. 4, the slider - as far as described so far - can be moved to the right up to the end of the recess 13, the trapezoidal blade 29 shown on the right in FIG. 4 being fully extended . If this happens during an operation, there is a large one Risk of trapezoidal blade 29 injuring the operator's arm, especially the pulse. To prevent this danger, a manually operated rocker 37 is pivotally mounted on the cover 2 about an axis 38, which is directed perpendicular to the direction of displacement of the actuating slide. The rocker 37 has at its ends interchangeable stops 39, 40, which in the basic position according to FIG. 3 let the plate-shaped leg 16 of the actuating slide 15 between them, so that the actuating slide is locked in both directions. By pivoting the rocker 37 on its actuating lever 41, only one of the interchangeable stops 39, 40 can be pivoted back out of the stop position, so that the actuating slide 15 is only ever moved to this one, released position and, accordingly, only one of the blades 29 and 30 is extended can be. In the position according to FIG. 4, in which the stop 39 is brought into the release position, the other stop 40 is inevitably in its stop position, so that the actuation slide 15 can only be moved back as far as possible up to the stop 40.

Die Fig. 13 und 14 zeigen eine abgewandelte Ausführungsform einer die Wechselanschläge 39, 40 aufweisenden Wippe 42. Statt eines Betätigungshebels 41 sind hier an der Wippe 42 jeweils den Wechselanschlägen 39, 40 gegenüberliegende Betätigungskuppen 43, 44 vorgesehen. Die Wippe 42 wird am Deckel 2 (vgl. Fig. 15) um die Achse 45 schwenkbar gelagert und liegt in einem Langloch 46 des Deckels. In der Grundstellung ragen beide Kuppen 43, 44 etwas an der Deckelaußenseite vor. Durch Niederdrücken einer der Kuppen 43 oder 44 wird jeweils der diagonal dieser Kuppe gegenüberliegende Anschlag 40 bzw. 39 in Freigabestellung geschwenkt. Die Wippe 42 ist mit Klemmnoppen 47 versehen, die bei einer Verstellung der Wippe jeweils über die Ränder des Langloches 16 herübergedrückt werden müssen und somit die jeweilige Stellung der Wippe 42 sichern.13 and 14 show a modified embodiment of a rocker 42 having the change stops 39, 40. Instead of an actuating lever 41, here actuating knobs 43, 44 are provided on the rocker 42 in each case opposite the change stops 39, 40. The rocker 42 is pivotally mounted on the cover 2 (cf. FIG. 15) about the axis 45 and lies in an elongated hole 46 of the cover. In the basic position, both crests 43, 44 protrude somewhat from the outside of the lid. By pressing one of the crests 43 or 44, the diagonally opposite stop 40 or 39 in Release position pivoted. The rocker 42 is provided with clamping knobs 47, which must be pushed over the edges of the elongated hole 16 when the rocker is adjusted and thus secure the respective position of the rocker 42.

Wie in den Fig. 2, 3, 7 und 8 ferner gezeigt ist, ist das Mehrzweckmesser nach der Erfindung mit einem Magazin für Vorratsklingen ausgerüstet. Dieses Magazin ist durch einen an der ununterbrochenen Außenseite des Grundkörpers 1 angeschraubten Magazindeckel 48 gebildet, der einen zur Aufnahme von mindestens zwei in Längsrichtung hintereinander angeordneten Vorratsklingen 49, 50 ausreichenden Magazinraum überdeckt. Der Magazindeckel 48 ist an seinen Längsrändern zwischen zwei erhabenen Einfaßrändern 51, 52 des Grundkörpers 1 eingefaßt.2, 3, 7 and 8, the multi-purpose knife according to the invention is equipped with a magazine for storage blades. This magazine is formed by a magazine cover 48 screwed onto the uninterrupted outside of the base body 1, which covers a magazine space sufficient to accommodate at least two storage blades 49, 50 arranged one behind the other in the longitudinal direction. The magazine cover 48 is bordered on its longitudinal edges between two raised border edges 51, 52 of the base body 1.

BezugszeichenlisteReference list

11
GrundkörperBasic body
22nd
Deckelcover
33rd
VerschlußschieberLocking slide
44th
VerschlußschieberLocking slide
55
EndabschnittEnd section
66
EndabschnittEnd section
77
AusnehmungRecess
88th
Zungetongue
99
RastnaseLatch
1010th
RastaufnahmenRest shots
1111
Schraubescrew
1212th
EckausnehmungCorner recess
1313
EckausnehmungCorner recess
1414
GriffteilHandle part
1515
BetätigungsschieberActuating slide
1616
Schenkelleg
1717th
VerzahnungGearing
1818th
ZahnreiheRow of teeth
1919th
SchiebefußSliding foot
2020th
NutGroove
2121
AusnehmungRecess
2222
RückstellfederReturn spring
2323
Verlängerungrenewal
2424th
Platteplate
2525th
EcknutCorner groove
2626
EcknutCorner groove
2727
KlingenhalterBlade holder
2828
KlingenhalterBlade holder
2929
TrapezklingeTrapezoidal blade
3030th
HakenklingeHook blade
3131
RückholfederReturn spring
3232
AnschlagflächeAbutment surface
3333
AnschlagflächeAbutment surface
3434
Hakenhook
3535
Hakenhook
3636
VerhakungsaufnahmeSnagging
3737
WippeSeesaw
3838
Achseaxis
3939
WechselanschlagExchange stop
4040
WechselanschlagExchange stop
4141
BetätigungshebelOperating lever
4242
WippeSeesaw
4343
BetätigungskuppeActuating tip
4444
BetätigungskuppeActuating tip
4545
Achseaxis
4646
LanglochLong hole
4747
KlemmnoppenClamping knobs
4848
MagazindeckelMagazine cover
4949
VorratsklingeStorage blade
5050
VorratsklingeStorage blade
5151
EinfaßrandBorder
5252
EinfaßrandBorder

Claims (8)

  1. Multipurpose knife in the form of an oblong handle, from each at the two ends of which a blade (29, 30) can be selectively extended, which are each supported by separately displaceable blade holders (27, 28) which can be locked in their inwardly pushed normal position, characterised in that between the two blade holders (27, 28) an operating slide (15) engages, with which in each case the one or other blade holder (27, 28) is movable towards the outside against the force of a return spring (31), and that in the normal position the operating slide (15) is enclosed in its direction of movement between two manually operable alternating limit stops (39, 40) of which always only one can be moved into the release position.
  2. Multipurpose knife according to Claim 1, characterised in that the alternating limit stops (39, 40) are arranged at the ends of a rocker (37).
  3. Multipurpose knife according to Claim 1 or 2, characterised in that the operating slide (15) consists of a slide base (19) guided in the knife and of a grip part (14) capable of being pushed down into the slide base (19) against the force of a restoring spring (22), that in the normal position the grip part (14) engages by a tooth construction (17) in a row or teeth (18) formed on the base body (1) of the knife and is displaceable only in its depressed position, in which its tooth construction (17) is disengaged from the row of teeth (18), and on release again engages by its tooth construction (17) with the row of teeth (18) for locking its then position of advancement.
  4. Multipurpose knife according to Claim 3, characterised in that at its lower end the grip part (14) engages by a hook (34, 35) in each case in interlocking receptacles (36) of the two blade holders (27, 28) located in the normal position and that the hooks (34, 35) come out of engagement with the blade holders (27, 28) when the grip part (14) is pushed down and that after advancement of one (27) of the blade holders and release of the grip part (14) the grip part interlocks again with the advanced blade holder (27).
  5. Multipurpose knife according to one of the Claims 1 to 4, characterised in that the blade holder return spring (31) is stretched between the two blade holders (27, 28).
  6. Multipurpose knife according to one of the Claims 3 to 5, characterised in that the knife housing consists of a shell-shaped base body (1), a central cover (2) and two closure slides (3, 4) at the ends, that the teeth of the row of teeth (18) are oriented towards the cover (2), a guide slot for the grip part (14) of the operating slide (15) being hollowed out between the base body (1) and the cover (2), and that the rocker (37) is mounted on the cover (2).
  7. Multipurpose knife according to Claim 6, characterised in that on the outside of the base body (1) a detachable storage cover (48) extending over the most part of the length of the handle is fastened which covers a storage space sufficient for the accommodation of at least two spare blades (49, 50) arranged one behind the other in the longitudinal direction.
  8. Multipurpose knife according to Claim 7, characterised in that at its longitudinal sides the storage cover (48) is let in between two raised enclosing edges (51, 52) of the base body (1).
EP94102171A 1993-02-13 1994-02-11 Multi purpose knife Expired - Lifetime EP0611634B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4304742 1993-02-13
DE4304742A DE4304742A1 (en) 1993-02-13 1993-02-13 Utility knife

Publications (2)

Publication Number Publication Date
EP0611634A1 EP0611634A1 (en) 1994-08-24
EP0611634B1 true EP0611634B1 (en) 1996-10-16

Family

ID=6480639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102171A Expired - Lifetime EP0611634B1 (en) 1993-02-13 1994-02-11 Multi purpose knife

Country Status (3)

Country Link
EP (1) EP0611634B1 (en)
AT (1) ATE144176T1 (en)
DE (2) DE4304742A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6148522A (en) * 1996-10-18 2000-11-21 Dobandi; Frank Dual-blade utility knife
DE19717830A1 (en) 1997-04-26 1998-10-29 Wolfcraft Gmbh Utility knife
US7434317B2 (en) * 2004-09-23 2008-10-14 Irwin Industrial Tool Company Slide assembly device for a snap-off blade utility knife
GB0603908D0 (en) * 2006-02-28 2006-04-05 W A I Designs Ltd Knife
US8006388B1 (en) * 2008-01-04 2011-08-30 Dejesus Thomas Combination retractable knife and saw utility tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006968A1 (en) * 1980-02-25 1981-09-10 Dieter Dipl.-Ing. 7121 Ingersheim Wolff Wall covering or carpet cutter - has hollow handle, with retractable blade retainer
US4517741A (en) * 1982-05-19 1985-05-21 Castelluzzo James M Knife with plural replaceable blade storage and means for single blade extension
DE3735294A1 (en) * 1987-10-17 1989-04-27 Rudi Teihs Safety holder for industrial blades
GB2213416B (en) * 1987-12-11 1991-12-18 Stanley Works Ltd Blade-carriers for retractable-blade knives
US5093994A (en) * 1990-09-20 1992-03-10 Christine Bringman Double ended-retractable knife
US5230152A (en) * 1991-12-04 1993-07-27 Kennedy Michael J Dual blade utility knife

Also Published As

Publication number Publication date
DE59400841D1 (en) 1996-11-21
ATE144176T1 (en) 1996-11-15
DE4304742A1 (en) 1994-08-18
EP0611634A1 (en) 1994-08-24

Similar Documents

Publication Publication Date Title
EP0842014B1 (en) Multi-purpose manually-operated appliance for offices
DE602004008408T2 (en) Foldable multipurpose tool with holder for bits and locking for a knife blade
DE69914465T2 (en) Utility knife
DE3049384A1 (en) KEY HANDLE
DE3003528A1 (en) KNIFE HANDLE
DE3325565A1 (en) DEVICE FOR USE UNLOCKING SCREWS
DE10034681A1 (en) Guide shoe for compass saw has bar with detent notches engaging with detent hook in saw but removable by rotation until detent hook lies in removing device
DE3606635A1 (en) PORTABLE CARRIER FOR HAND TOOLS AND / OR ACCESSORIES
DE2902642A1 (en) KNIFE WITH A RETRACTABLE BLADE
EP0955133B1 (en) Knife for laying
DE3714302A1 (en) SCISSORS
DE3038565C2 (en) Stapler
EP3403777A1 (en) Knife
DE3141248C2 (en) Device for feeding screws for a motorized screwdriver
DE3022084A1 (en) DRILLING TOOL
EP0611634B1 (en) Multi purpose knife
EP0305414B1 (en) Cutter
DE2706169C3 (en) Cutting blade holder provided with a clamping device
DE19702407C2 (en) Quick clamping device on a workpiece processing machine
DE112014006266B4 (en) Secateurs with cut toggle mode
DE1905532U (en) STAPLE DEVICE.
WO2005108026A1 (en) Cutting device
DE102006006592A1 (en) Mechanism for locking a scraper tool
DE2440849A1 (en) TOOL HANDLE
EP0442004B1 (en) Knife with interchangeable blades

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

17P Request for examination filed

Effective date: 19941121

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960402

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19961016

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19961016

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19961016

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19961016

Ref country code: DK

Effective date: 19961016

REF Corresponds to:

Ref document number: 144176

Country of ref document: AT

Date of ref document: 19961115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961016

REF Corresponds to:

Ref document number: 59400841

Country of ref document: DE

Date of ref document: 19961121

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 70267

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970116

Ref country code: PT

Effective date: 19970116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19970228

Ref country code: CH

Effective date: 19970228

Ref country code: BE

Effective date: 19970228

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970627

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 70267

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980123

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990211

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990211

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001229

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010115

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST