EP0252319B1 - Knife with a substantially hollw handle body - Google Patents

Knife with a substantially hollw handle body Download PDF

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Publication number
EP0252319B1
EP0252319B1 EP87108323A EP87108323A EP0252319B1 EP 0252319 B1 EP0252319 B1 EP 0252319B1 EP 87108323 A EP87108323 A EP 87108323A EP 87108323 A EP87108323 A EP 87108323A EP 0252319 B1 EP0252319 B1 EP 0252319B1
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EP
European Patent Office
Prior art keywords
handle
knife
knife blade
slide portion
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
Application number
EP87108323A
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German (de)
French (fr)
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EP0252319A1 (en
Inventor
Heinz-Peter Knoop
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.)
Martor Argentax EH Beermann KG
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Martor Argentax EH Beermann KG
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Filing date
Publication date
Application filed by Martor Argentax EH Beermann KG filed Critical Martor Argentax EH Beermann KG
Priority to AT87108323T priority Critical patent/ATE45117T1/en
Publication of EP0252319A1 publication Critical patent/EP0252319A1/en
Application granted granted Critical
Publication of EP0252319B1 publication Critical patent/EP0252319B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/003—Hand 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

Definitions

  • the invention relates to a knife, as has become known according to the preamble of claim 1 by US-A 28 62 296.
  • short knife blade should be understood to mean a short trapezoidal blade, rectangular blade or hook blade - at least not a strip-like snap-off blade.
  • a short knife blade is therefore used, which mainly consists of strip steel and is generally no longer used after becoming blunt, but is replaced by a new knife blade.
  • the object of the invention is to design the known knife in such a way that a knife blade change can be carried out in a simple manner without manipulations which significantly delay the work step. This object has been achieved in accordance with the characterizing part of patent claim 1.
  • the knife according to the invention is characterized in that the slider part or a part thereof can be easily loosened and removed through the outwardly open slider longitudinal slot when the knife blade is retracted (here the knife blade is completely accommodated in the handle body), so that the knife blade is free.
  • the blunt knife blade can be exchanged, which can be exchanged for a new knife blade after it has been removed through the slider longitudinal slot, which can also be inserted through the slider longitudinal slot into its mounting position and then or subsequently through the slide part or through a part the same is positively and releasably locked to the slide part.
  • the longitudinal slot has a width corresponding to the knife blade and is arranged on a broad side of the handle body, the slide part, which is arrested as well as positively and releasably, forms a cover lying on the outer broad side of the blade.
  • This cover can be easily loosened and, if it is hinged on one side, for example, can be pivoted out so that the blunt knife blade is exposed for replacement by a new one.
  • the easily detachable locking of the slide cover can take place in various ways, preferably by snap locking means, which bring about a releasable locking of the cover on the actual inner slide part.
  • a second basic embodiment according to the invention consists essentially in the fact that the form-fitting, easily releasably locked slide part can be removed together with the knife blade together with the knife blade through a slot provided on a narrow side of the handle body and extending in the longitudinal direction of the handle body.
  • a particularly preferred embodiment of this second basic embodiment according to the invention consists in the fact that the slide part with the knife blade can be pivoted out in the retracted rest position of the knife blade about a pivot pin extending transversely to the broad grip body surfaces.
  • a knife is shown overall with the reference number 10 (Fig. 1-3) or 10a (Fig. 4).
  • Each knife has a substantially hollow handle body 11 (Fig. 1-3) or 11 a (Fig. 4), which consists of two handle halves 12 (Fig. 1-3) or 12a (Fig. 4) .
  • a slide longitudinal slot 13 is provided on a broad side (i.e. on a handle shell longitudinal half 12) of the handle body 11, which slit passes through a handle shell longitudinal half 12 over its entire thickness.
  • the width b of the slider longitudinal slot 13 is somewhat larger than the width of the knife blade 14 with cutting edge 15, which in the present case represents a trapezoidal blade.
  • the lower half of the handle shell 12, which is otherwise not visible in FIG. 1, forms two knife blade guideways located at a parallel distance from one another 16, on which the knife blade 14 is not guided directly but in a longitudinally displaceable manner parallel to the handle body longitudinal axis x by means of an inner slide guide part 17.
  • the knife blade 14 is held releasably locked in its advanced cutting position between the inner slide part 17 and the slide cover 18, as shown in FIGS. 1 and 2.
  • the releasable locking takes place via snap locking means 21, which are shown in broken lines in FIG. 2.
  • the knife blade 14 is located together with the inner slide part 17 and the slide cover 18 in the retracted rest position according to FIG. 3. Since the slide cover 18 is connected to a bracket part 23 via a film hinge 22 and this in turn on the inner part Slider part 17 is held, the slider cover 18 can be released in the pivoting direction u from the connection of the snap locking means 21, so that the knife blade 14 can be removed to the outside through the wide longitudinal slider slot 13 and exchanged for a new knife blade 14.
  • the snap locking means 21 consist of undercut male-shaped locking or centering pins 24 of the inner slide part 17 and correspondingly undercut matrix-like locking holes 25 of the slide cover 18.
  • the articulation axis a of the film hinge 22 extends parallel to the transverse axis y of the handle body 11.
  • the slide parts 17, 18 - the latter with the bracket part 23 - suitably consist of a suitable plastic, that is, they form plastic injection molded parts.
  • the two handle shell longitudinal halves 12 can optionally represent plastic injection molded parts or metal die cast parts.
  • the embodiment according to FIG. 4 has a slide longitudinal slot 13a on the upper narrow side of the handle body 11a. 4, the knife blade 14 is in its operating position advanced toward the cutting side S.
  • the slider arrangement 26, 27 is such that the knife blade 14 is pivoted outward in the retracted rest position of the slider 26 together with the latter by a pivot pin 27 projecting inwards from a grip shell longitudinal half 12 in accordance with the direction of rotation v out of the slider longitudinal slot 13a can, as indicated by dashed partial representation in Fig. 4.
  • the knife blade 14 In the pivoted-out position (not shown), the knife blade 14 can be pulled off the side of the centering pin 28 and replaced by a new one.
  • the slide or the slide part 26 form an elongated hole 29 which extends in the longitudinal direction x of the handle body and in which the pivot pin 27 is received.
  • the end 30 of the elongated hole 29 facing away from the cutting side S lies against the pivot pin 27 in the cutting position 14 of the knife blade shown.
  • the one handle shell longitudinal half 12a shown folded down forms a short guide groove 31 which extends in the longitudinal direction x of the handle body and which is open at its two ends in an offset arrangement to the pivot pin 27.
  • a slide-like, strip-like guide projection 33 which partially covers the rear end of the knife blade 14 at a distance, engages longitudinally and slidably. If the slide 26 with its slot 29 moves completely backwards from the cutting side S and the pivot pin 27 abuts the front end 32 of 29, the strip-shaped guide projection 33 is already outside the guide groove 31, so that the pivoting movement of the arrangement 26 , 14 in direction v for changing the knife blade 14 can be introduced unhindered.
  • the slide-side actuating handle 34 is connected to the inner slide part 17 via a connecting web 35.
  • the entire slide is suitably made of plastic, so it forms a plastic injection molded part.
  • the handle shell longitudinal halves 12a can either form plastic injection molded parts or metal die cast parts.
  • the slide handling surfaces are each designated 36.
  • the end of the guide groove 31 facing away from the cutting side S is designated by 37.

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

Abstract

A knife comprises a substantially hollow handle, a short knife blade guided longitudinally movable in a knife blade guide track and at least one guided slider member coupled indirectly with the handle side of the longitudinally movable knife blade. The slider member is provided or associated with a longitudinal slot, in some cases penetrating the handle to reach the exterior, and an operating piece. An especially simple replacement of the knife blade is possible since the knife blade is insertable at least indirectly in the knife blade guide track through the longitudinal slot which is designed to meet its spatial requirements. There the knife blade is form-locked and releasably lockable on the slider member which is at least partially removable from the handle.

Description

Die Erfindung betrifft ein Messer, wie es entsprechend dem Oberbegriff des Patentanspruchs 1 durch die US-A 28 62 296 bekanntgeworden ist.The invention relates to a knife, as has become known according to the preamble of claim 1 by US-A 28 62 296.

Bei dem bekannten Messer wird der Aufwand beim Auswechseln der als Trapezklinge ausgebildeten Messerklinge als nachteilig empfunden. Hierzu muß zunächst die Verbindungsschraube, die beide Längsschalen des Griffkörpers aneinander hält, herausgeschraubt werden. Erst dann läßt sich zur Auswechselung der Messerklinge das mit jener längsbeweglich gekuppelte Schieberteil herausnehmen.In the known knife, the effort involved in replacing the knife blade designed as a trapezoidal blade is felt to be disadvantageous. To do this, the connecting screw, which holds the two longitudinal shells of the handle body together, must first be unscrewed. Only then can the knife part, which is coupled with that longitudinally movable slide part, be removed for replacing the knife blade.

Unter dem gattungsmäßigen Begriff "kurze Messerklinge" soll jeweils eine kurze Trapezklinge, Rechteckklinge oder Hakenklinge - jedenfalls keine leistenartige Abbrechklinge - verstanden werden. Es wird also eine kurze Messerklinge verwendet, welche überwiegend aus Bandstahl besteht und in der Regel nach dem Stumpfwerden nicht mehr verwendet, sondern gegen eine neue Messerklinge ausgetauscht wird.The generic term "short knife blade" should be understood to mean a short trapezoidal blade, rectangular blade or hook blade - at least not a strip-like snap-off blade. A short knife blade is therefore used, which mainly consists of strip steel and is generally no longer used after becoming blunt, but is replaced by a new knife blade.

Ausgehend von dem Messer gemäß der US-A 28 62 296, liegt der Erfindung die Aufgabe zugrunde, das bekannte Messer so auszugestalten, daß ein Messerklingenwechsel auf einfache Weise ohne den Arbeitsgang wesentlich verzögernde Manipulationen erfolgen kann. Diese Aufgabe wurde entsprechend dem Kennzeichenteil des Patentanspruchs 1 gelöst.Proceeding from the knife according to US Pat. No. 2,862,296, the object of the invention is to design the known knife in such a way that a knife blade change can be carried out in a simple manner without manipulations which significantly delay the work step. This object has been achieved in accordance with the characterizing part of patent claim 1.

Das erfindungsgemäße Messer zeichnet sich dadurch aus, daß das Schieberteil oder ein Teil desselben bei zurückgezogener Position der Messerklinge (hierbei ist die Messerklinge gänzlich im Griffkörper aufgenommen) durch den nach außen offenen Schieber-Längsschlitz hindurch leicht gelöst und herausgenommen werden kann, so daß die Messerklinge frei liegt. Nun kann das Auswechseln der stumpfen Messerklinge durchgeführt werden, welche nach ihrer Herausnahme durch den Schieber-Längsschlitz gegen eine neue Messerklinge ausgetauscht werden kann, welche ebenfalls durch den Schieber-Längsschlitz hindurch in ihre Montageposition eingeführt und hierbei oder anschließend durch das Schieberteil oder durch ein Teil desselben formschlüssig und lösbar am Schieberteil arretiert wird. Entsprechend einer ersten grundsätzlichen erfindungsgemäßen Ausführungsform weist der Längsschlitz eine der Messerklinge entsprechende Breite auf und ist an einer Breitseite des Griffkörpers angeordnet, wobei das herausnehmsowie formschlüssig und lösbar arretierte Schieberteil eine an der äußeren Klingenbreitseite anliegende Abdeckung bildet. Diese Abdeckung kann leicht gelöst und wenn sie beispielsweise einseitig angelenkt ist, herausgeschwenkt werden, so daß die stumpfe Messerklinge zur Auswechslung gegen eine neue freiliegt. Die leicht lösbare Arretierung der Schieberabdeckung kann auf verschiedene Weise, vorzugsweise durch Schnappverrastmittel, erfolgen, die eine lösbare Verriegelung der Abdeckung am eigentlichen inneren Schieberteil bewirken.The knife according to the invention is characterized in that the slider part or a part thereof can be easily loosened and removed through the outwardly open slider longitudinal slot when the knife blade is retracted (here the knife blade is completely accommodated in the handle body), so that the knife blade is free. Now the blunt knife blade can be exchanged, which can be exchanged for a new knife blade after it has been removed through the slider longitudinal slot, which can also be inserted through the slider longitudinal slot into its mounting position and then or subsequently through the slide part or through a part the same is positively and releasably locked to the slide part. According to a first basic embodiment according to the invention, the longitudinal slot has a width corresponding to the knife blade and is arranged on a broad side of the handle body, the slide part, which is arrested as well as positively and releasably, forms a cover lying on the outer broad side of the blade. This cover can be easily loosened and, if it is hinged on one side, for example, can be pivoted out so that the blunt knife blade is exposed for replacement by a new one. The easily detachable locking of the slide cover can take place in various ways, preferably by snap locking means, which bring about a releasable locking of the cover on the actual inner slide part.

Eine zweite grundsätzliche Ausführungsform entsprechend der Erfindung besteht im wesentlichen darin, daß das formschlüssig leicht lösbar arretierte Schieberteil zusammen mit der Messerklinge durch einen an einer Griffkörper- Schmalseite vorgesehenen und sich in Längsrichtung des Griffkörpers erstreckenden Schlitz gemeinsam mit der Messerklinge herausnehmbar ist. Eine besonders bevorzugte erfindungsgemäße Ausführungsform dieser zweiten grundsätzlichen Ausbildung besteht darin, daß Schieberteil mit Messerklinge in zurückgezogener Ruheposition der Messerklinge um einen sich quer zu den Griffkörper-Breitflächen erstreckenden Schwenkzapfen herausschwenkbar sind.A second basic embodiment according to the invention consists essentially in the fact that the form-fitting, easily releasably locked slide part can be removed together with the knife blade together with the knife blade through a slot provided on a narrow side of the handle body and extending in the longitudinal direction of the handle body. A particularly preferred embodiment of this second basic embodiment according to the invention consists in the fact that the slide part with the knife blade can be pivoted out in the retracted rest position of the knife blade about a pivot pin extending transversely to the broad grip body surfaces.

Weitere Einzelheiten, Vorteile und erfindungswesentliche Merkmale ergeben sich aus zusätzlichen Unteransprüchen sowie aus der nachfolgenden Beschreibung bevorzugter Ausführungsformen des erfindungsgemäßen Messers unter Bezugnahme auf die angefügten Zeichnungen. Dabei zeigt im einzelnen:

  • Fig. 1 eine Ansicht der Breitseite eines Messers,
  • Fig. 2 eine Draufsicht auf die obere Messer-Schmalseite entsprechend dem mit II bezeichneten Ansichtspfeil in Fig. 1, wobei die Griffschalen-Längshälften teilweise weggeschnitten sind, so daß ein leicht lösbar arretiertes und die Messerklinge haltendes Schieber-Abdeckteil sichtbar ist, während sich die Messerklinge in ihrer vorderen Schneidposition befindet,
  • Fig. 3 eine Anlehnung an die Darstellung gemäß Fig. 2, jedoch mit abgeschwenkter Schieber-Abdeckung und
  • Fig. 4 eine Teildarstellung einer anderen Messer-Ausführungsform, bei welcher zur besseren Funktions-Verdeutlichung die beiden teilweise dargestellten Griffschalen-Längshälften voneinander abgeklappt sind.
Further details, advantages and features essential to the invention result from additional subclaims and from the following description of preferred embodiments of the knife according to the invention with reference to the attached drawings. The individual shows:
  • 1 is a view of the broad side of a knife,
  • Fig. 2 is a plan view of the upper narrow side of the knife corresponding to the arrow indicated in Fig. 1 in Fig. 1, wherein the handle halves are partially cut away, so that an easily releasably locked and holding the knife blade slide cover part is visible while the Knife blade is in its forward cutting position,
  • Fig. 3 is based on the illustration of FIG. 2, but with the slider cover pivoted and
  • Fig. 4 is a partial representation of another knife embodiment, in which the two partially shown handle halves are folded apart from each other for better functional clarification.

In den Zeichnungen ist ein Messer insgesamt mit der Bezugsziffer 10 (Fig. 1-3) bzw. 10a (Fig. 4) dargestellt.In the drawings, a knife is shown overall with the reference number 10 (Fig. 1-3) or 10a (Fig. 4).

Jedes Messer weist einen im wesentlichen hohlen Griffkörper 11 (Fig. 1-3) bzw. 11 a (Fig. 4) auf, der aus zwei Griffschalen-Längshälften 12 (Fig. 1-3) bzw. 12a (Fig. 4) besteht.Each knife has a substantially hollow handle body 11 (Fig. 1-3) or 11 a (Fig. 4), which consists of two handle halves 12 (Fig. 1-3) or 12a (Fig. 4) .

Entsprechend den Fig. 1-3 ist an einer Breitseite (d.h. an einer Griffschalen-Längschälfte 12) des Griffkörpers 11 ein Schieber-Längsschlitz 13 vorgesehen, der eine Griffschalen- Längshälfte 12 auf ganzer Dicke durchsetzt. Die Breite b des Schieber-Längsschlitzes 13 ist etwas größer als die Breite der im vorliegendem Falle eine Trapezklinge darstellenden Messerklinge 14 mit Schneide 15. Die in Fig. 1 ansonsten nicht sichtbare untere Griffschalen-Längshälfte 12 bildet zwei sich voneinander im Parallelabstand befindende Messerklingen-Führungsbahnen 16, auf welcher die Messerklinge 14 jedoch nicht unmittelbar sondern mittels eines inneren Schieberführungsteils 17 längsverschieblich parallel zur Griffkörper-Längsachse x geführt ist.According to FIGS. 1-3, a slide longitudinal slot 13 is provided on a broad side (i.e. on a handle shell longitudinal half 12) of the handle body 11, which slit passes through a handle shell longitudinal half 12 over its entire thickness. The width b of the slider longitudinal slot 13 is somewhat larger than the width of the knife blade 14 with cutting edge 15, which in the present case represents a trapezoidal blade. The lower half of the handle shell 12, which is otherwise not visible in FIG. 1, forms two knife blade guideways located at a parallel distance from one another 16, on which the knife blade 14 is not guided directly but in a longitudinally displaceable manner parallel to the handle body longitudinal axis x by means of an inner slide guide part 17.

In den Fig. 1 und 2 befindet sich die Messerklinge. 14 in ihrer Schneidposition, d.h. das innere Schieberteil 17 ist gänzlich nach vorn zu der mit S bezeichneten Schneidseite hin verschoben, wobei eine in der Ansicht vorn etwa V-förmig ausgebildete Schieber-Abdeckung 18 an einen korrespondierend ausgebildeten Anschlag A des Schieber-Längsschlitzes 13 anstößt.1 and 2 there is the knife blade. 14 in its cutting position, ie the inner slide part 17 is completely shifted forward to the cutting side labeled S, ei ne in the front view approximately V-shaped slide cover 18 abuts a correspondingly designed stop A of the slide longitudinal slot 13.

Die Längsverschiebung von innerem Schieberteil 17 mit Schieber-Abdeckung 18 nach vorn zur Schneidseite S erfolgt entgegen der Rückstellkraft einer Zugfeder 19. Sobald die eine Griffhandhabe 34 bildende Schieber-Abdeckung 18 mit dem Daumen nicht mehr nach vorne geschoben wird, zieht die Zugfeder 19 die Schieber-Anordnung 17, 18 zusammen mit der Messerklinge 14 in eine Ruheposition (Fig. 3) zurück, gemäß welcher die Messerklinge 14 gänzlich im Griffkörper 11 aufgenommen ist. Hierbei befindet sich die Messer klinge 14 mit ihrer gesamten Klingenbreitseite 20 innerhalb des Schieber-Längsschlitzes 13.The longitudinal displacement of the inner slide part 17 with the slide cover 18 to the cutting side S takes place counter to the restoring force of a tension spring 19. As soon as the slide cover 18 forming a handle 34 is no longer pushed forward with the thumb, the tension spring 19 pulls the slide - Arrangement 17, 18 together with the knife blade 14 in a rest position (FIG. 3), according to which the knife blade 14 is completely accommodated in the handle body 11. Here, the knife blade 14 is located with its entire broad side 20 within the slider longitudinal slot 13.

Die Entnahme der Messerklinge in ihrer zurückgezogenen Ruheposition gemäß Fig. 3 vollzieht sich wie folgt:The removal of the knife blade in its retracted rest position according to FIG. 3 takes place as follows:

Zunächst ist die Messerklinge 14 entsprechend den Darstellungen in Fig. 1 und 2 in ihrer vorgeschobenen Schneidposition zwischen dem inneren Schieberteil 17 und der Schieber-Abdeckung 18 lösbar arretiert gehalten. Die lösbare Arretierung erfolgt über Schnappverrastmittel 21, die in Fig. 2 gestrichelt dargestellt sind.First, the knife blade 14 is held releasably locked in its advanced cutting position between the inner slide part 17 and the slide cover 18, as shown in FIGS. 1 and 2. The releasable locking takes place via snap locking means 21, which are shown in broken lines in FIG. 2.

Nachdem die Zugfeder 19 wirksam wurde, befindet sich die Messerklinge 14 gemeinsam mit dem inneren Schieberteil 17 und der Schieber- Abdeckung 18 in der zurückgezogenen Ruheposition gemäß Fig. 3. Da die Schieberabdeckung 18 über ein Filmscharnier 22 an einem Konsolteil 23 und dieses wiederum am inneren Schieberteil 17 gehalten ist, läßt sich die Schieber-Abdeckung 18 in Schwenkrichtung u aus der Anbindung der Schnappverrastmittel 21 lösen, so daß die Messerklinge 14 durch den breiten Schieber-Längsschlitz 13 hinaus nach außen entnommen und gegen eine neue Messerklinge 14 ausgetauscht werden kann.After the tension spring 19 has taken effect, the knife blade 14 is located together with the inner slide part 17 and the slide cover 18 in the retracted rest position according to FIG. 3. Since the slide cover 18 is connected to a bracket part 23 via a film hinge 22 and this in turn on the inner part Slider part 17 is held, the slider cover 18 can be released in the pivoting direction u from the connection of the snap locking means 21, so that the knife blade 14 can be removed to the outside through the wide longitudinal slider slot 13 and exchanged for a new knife blade 14.

Aus Fig. 3 ist im übrigen zu ersehen, daß die Schnappverrastmittel 21 aus hinterschnittenen patrizenförmigen Rast- bzw. Zentrierzapfen 24 des inneren Schieberteils 17 und aus entsprechend hinterschnittenen matrizenartigen Rastlöchern 25 der Schieber-Abdeckung 18 bestehen. Sobald eine neue Messerklinge 14 eingewechselt ist, wird die Schieber-Abdeckung wiederum in ihre Raststellung (vergleichbar den Fig. 1 und 2) versetzt.From Fig. 3 it can be seen, moreover, that the snap locking means 21 consist of undercut male-shaped locking or centering pins 24 of the inner slide part 17 and correspondingly undercut matrix-like locking holes 25 of the slide cover 18. As soon as a new knife blade 14 has been inserted, the slide cover is again moved into its latching position (comparable to FIGS. 1 and 2).

Es bleibt noch zu erwähnen, daß sich die Anlenkungsachse a des Filmscharniers 22 parallel zur Querachse y des Griffkörpers 11 erstreckt.It remains to be mentioned that the articulation axis a of the film hinge 22 extends parallel to the transverse axis y of the handle body 11.

Die Schieberteile 17,18 - letzeres mit dem Konsolteil 23 - bestehen zweckmäßig aus einem geeigneten Kunststoff, bilden also Kunststoff-Spritzgußteile. Die beiden Griffschalen- Längshälften 12 können wahlweise Kunststoff- Spritzgußteile oder Metall-Druckgußteile darstellen.The slide parts 17, 18 - the latter with the bracket part 23 - suitably consist of a suitable plastic, that is, they form plastic injection molded parts. The two handle shell longitudinal halves 12 can optionally represent plastic injection molded parts or metal die cast parts.

Bei der Darstellung des Ausführungsbeispiels gemäß Fig. 4 wurden - soweit möglich - für analoge Bauteile dieselben Bezugszeichen entsprechend den Fig. 1-3 gewählt.In the illustration of the exemplary embodiment according to FIG. 4, the same reference numerals have been chosen, as far as possible, for analog components in accordance with FIGS. 1-3.

Im Unterschied zur Ausführungsform gemäß den Fig. 1-3 weist die Ausführungsform gemäß Fig. 4 einen Schieber-Längsschlitz 13a an der oberen Schmalseite des Griffkörpers 11 a auf. In der Darstellung gemäß Fig. 4 befindet sich die Messerklinge 14 in ihrer zur Schneidseite S hin vorgeschobenen Betriebsposition. Die Schieberanordnung 26, 27 ist so beschaffen, daß die Messerklinge 14 in zurückgezogener Ruheposition des Schiebers 26 gemeinsam mit letzterem um einen von einer Griffschalen-Längshälfte 12 nach innen vorragenden Schwenkzapfen 27 entsprechend der Schwenkrichtung v aus dem Schieber- Längsschlitz 13a heraus nach außen geschwenkt werden kann, wie durch gestrichelte Teildarstellung in Fig. 4 angedeutet. In der nicht dargestellten herausgeschwenkten Position kann die Messerklinge 14 seitlich von den Zentrierzapfen 28 abgezogen und durch eine neue ersetzt werden.In contrast to the embodiment according to FIGS. 1-3, the embodiment according to FIG. 4 has a slide longitudinal slot 13a on the upper narrow side of the handle body 11a. 4, the knife blade 14 is in its operating position advanced toward the cutting side S. The slider arrangement 26, 27 is such that the knife blade 14 is pivoted outward in the retracted rest position of the slider 26 together with the latter by a pivot pin 27 projecting inwards from a grip shell longitudinal half 12 in accordance with the direction of rotation v out of the slider longitudinal slot 13a can, as indicated by dashed partial representation in Fig. 4. In the pivoted-out position (not shown), the knife blade 14 can be pulled off the side of the centering pin 28 and replaced by a new one.

Im einzelnen ist die Funktion des Ausführungsbeispiels gemäß Fig. 4 folgende:The function of the exemplary embodiment according to FIG. 4 is as follows:

Der Schieber bzw. das Schieberteil 26 bilden ein sich in Griffkörper-Längsrichtung x erstreckendes Langloch 29, in welchem der Schwenkzapfen 27 aufgenommen ist. Das der Schneidseite S abgewandte Ende 30 des Langlochs 29 liegt bei der gezeigten Schneidstellung der Messerklinge 14 am Schwenkzapfen 27 an.The slide or the slide part 26 form an elongated hole 29 which extends in the longitudinal direction x of the handle body and in which the pivot pin 27 is received. The end 30 of the elongated hole 29 facing away from the cutting side S lies against the pivot pin 27 in the cutting position 14 of the knife blade shown.

Die unten abgeklappt dargestellte eine Griffschalen-Längshälfte 12a bildet in versetzter Anordnung zum Schwenkzapfen 27 eine sich in Griffkörper-Längsrichtung x erstreckende kurze Führungsnut 31, die an ihren beiden Enden offen ist. In diese Führungsnut 31 greift ein schieberseitiger leistenartiger Führungsansatz 33, der das rückwärtige Ende der Messerklinge 14 teilweise mit Abstand überdeckt, führend längs- und gleitverschieblich ein. Falls sich nun der Schieber 26 mit seinem Langloch 29 von der Schneidseite S weg gänzlich nach hinten bewegt und der Schwenkzapfen 27 am vorderen Ende 32 von 29 anstößt, befindet sich der leistenförmige Führungsansatz 33 bereits außerhalb der Führungsnut 31, so daß die Schwenkbewegung der Anordnung 26, 14 in Richtung v zur Auswechslung der Messerklinge 14 ungehindert eingeleitet weden kann.The one handle shell longitudinal half 12a shown folded down forms a short guide groove 31 which extends in the longitudinal direction x of the handle body and which is open at its two ends in an offset arrangement to the pivot pin 27. In this guide groove 31, a slide-like, strip-like guide projection 33, which partially covers the rear end of the knife blade 14 at a distance, engages longitudinally and slidably. If the slide 26 with its slot 29 moves completely backwards from the cutting side S and the pivot pin 27 abuts the front end 32 of 29, the strip-shaped guide projection 33 is already outside the guide groove 31, so that the pivoting movement of the arrangement 26 , 14 in direction v for changing the knife blade 14 can be introduced unhindered.

Die schieberseitige Betätigungshandhabe 34 ist über einen Verbindungssteg 35 mit dem inneren Schieberteil 17 verbunden. Der gesamte Schieber besteht zweckmäßig aus Kunststoff, bildet also einen Kunststoffspritzgußteil. Die Griffschalen-Längshälften 12a können entweder Kunststoff-Spritzgußteile oder aber Metall-Druckgußteile bilden.The slide-side actuating handle 34 is connected to the inner slide part 17 via a connecting web 35. The entire slide is suitably made of plastic, so it forms a plastic injection molded part. The handle shell longitudinal halves 12a can either form plastic injection molded parts or metal die cast parts.

Die Schieber-Handhabungsflächen sind jeweils mit 36 bezeichnet. Das der Schneidseite S abgewandte Ende der Führungsnut 31 ist mit 37 bezeichnet.The slide handling surfaces are each designated 36. The end of the guide groove 31 facing away from the cutting side S is designated by 37.

Claims (14)

1. Knife having a substantially hollow handle (11, 11 a), a short knife blade (14) guided therein so as to move longitudinally on a knife blade guideway (16), as well as a slide portion (18, 26') which is connected in a longitudinally movable manner at least indirectly to the knife blade, is guided on the handle side and with which a longitudinal slot (13, 13a) and an operating handle (34) are associated, each of the latter penetrating the wall of the handle, characterised in that the knife blade (14) can be inserted through the slide longitudinal slot (13, 13a) adapted to its spatial requirements at least indirectly into the knife blade guideway (16) and is positively and releasably locked there by means of the slide portion (18, 26) which is at least partially removable from the handle (11, 11 a).
2. Knife according to claim 1, characterised in that the slide longitudinal slot (13) is of a width (b) corresponding to the knife blade (14) and is disposed on a broad side of the handle (11), the removable and positively and releasably locked slide portion forming a covering (18) adjacent to the outer broad side (20) of the blade.
3. Knife according to claim 2, characterised in that the knife blade (14) is held positively locked at one end only with its inner broad side adjacent to an inner slide portion (17) guided on the knife blade guideway (16, 16), while the covering (18) adjacent to the outer broad side (20) of the knife blade (14) is positively locked on the inner slide portion (17).
4. Knife according to claim 2 or according to claim 3, characterised in that the covering (18) is held by means of snap locks (21) on the inner slide portion (17).
5. Knife according to one of claims 2 to 4, characterised in that the covering (18) is pivotable at one end on the inner slide portion (17).
6. Knife according to claim 5, characterised in that the swivelling axis (a) between the covering (18) and the inner slide portion (17) extends at right angles to the feed direction (at x) and parallel to the lateral axis (y) of the handle (11).
7. Knife according to claim 6, characterised in that the swivelling axis (a) is located at the point remote from the cutting side (S) of the handle (11).
8. Knife according to one of claims 2 to 7, characterised in that the covering (18) at the same time forms a slide operating surface (36).
9. Knife according to one of claims 2 to 8, characterised in that there is alternatively or additionally provided a slide operating portion which is connected in an extension- and pressure-resistant manner to the inner slide portion (17) and projects through an operating slot which is provided on the lower or upper, preferably on the upper, narrow side of the handle and extends parallel to the handle longitudinal axis (x).
10. Knife according to claim 1, characterised in that the positively releasably locked slide portion (26) together with the knife blade (14) is removable through a slide longitudinal slot (13a) provided on a narrow side of the handle and extending in a longitudinal direction (x) of the handle (11 a).
11. Knife according to claim 10, characterised in that the slide portion (26) with the knife blade (14) is pivotable, when the knife blade (14) is in the retracted position of rest, about a pivot (27) extending transversely relative to the broad surfaces of the handle.
12. Knife according to claim 11, characterised in that the slide portion (26) forms a slot (29) which extends in a longitudinal direction (x) of the handle and in which the pivot (27) is contained, the end (30) of the slot (29) remote from the cutting side (S) being adjacent to the pivot (27) when the kniffe blade is in its cutting position.
13. Knife according to claim 12 or according to claim 13, characterised in that the handle (11 a) forms, disposed offset relative to the pivot (27), a guide groove (31) which extends in a longitudinal direction (x) of the handle and releases at its end remote from the cutting side (S) a guide shoulder (33) on the slide side, which is longitudinally displacable in said groove, in order to permit outward pivoting (at v) of the slide portion (26).
14. Knife according to claim 13, characterised in that the guide shoulder (33) is strip-like.
EP87108323A 1986-07-03 1987-06-11 Knife with a substantially hollw handle body Expired EP0252319B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108323T ATE45117T1 (en) 1986-07-03 1987-06-11 KNIVES WITH A SUBSTANTIALLY HOLLOW HANDLE BODY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863622343 DE3622343A1 (en) 1986-07-03 1986-07-03 KNIFE WITH AN ESSENTIAL HOLLOW GRIP BODY
DE3622343 1986-07-03

Publications (2)

Publication Number Publication Date
EP0252319A1 EP0252319A1 (en) 1988-01-13
EP0252319B1 true EP0252319B1 (en) 1989-08-02

Family

ID=6304308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108323A Expired EP0252319B1 (en) 1986-07-03 1987-06-11 Knife with a substantially hollw handle body

Country Status (6)

Country Link
US (1) US4835865A (en)
EP (1) EP0252319B1 (en)
AT (1) ATE45117T1 (en)
DE (1) DE3622343A1 (en)
ES (1) ES2010691B3 (en)
HK (1) HK47891A (en)

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Also Published As

Publication number Publication date
DE3622343A1 (en) 1988-02-11
ES2010691B3 (en) 1989-12-01
US4835865A (en) 1989-06-06
ATE45117T1 (en) 1989-08-15
HK47891A (en) 1991-06-28
EP0252319A1 (en) 1988-01-13
DE3622343C2 (en) 1989-01-19

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