EP0250950B1 - Knife - Google Patents

Knife Download PDF

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Publication number
EP0250950B1
EP0250950B1 EP87108322A EP87108322A EP0250950B1 EP 0250950 B1 EP0250950 B1 EP 0250950B1 EP 87108322 A EP87108322 A EP 87108322A EP 87108322 A EP87108322 A EP 87108322A EP 0250950 B1 EP0250950 B1 EP 0250950B1
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EP
European Patent Office
Prior art keywords
knife
knife blade
sliding member
handle
handle body
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
EP87108322A
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German (de)
French (fr)
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EP0250950A1 (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
Original Assignee
Martor Argentax EH Beermann KG
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Publication date
Application filed by Martor Argentax EH Beermann KG filed Critical Martor Argentax EH Beermann KG
Priority to AT87108322T priority Critical patent/ATE63254T1/en
Publication of EP0250950A1 publication Critical patent/EP0250950A1/en
Application granted granted Critical
Publication of EP0250950B1 publication Critical patent/EP0250950B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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-2 640 260.
  • the knife blade made of steel strip is guided on the inner surfaces of a hollow handle body formed from a sheet metal blank.
  • a spring-loaded, approximately bolt-like slide transverse to the wide surface of the knife blade, penetrates the knife blade interchangeably in a bore and the handle body in a slide longitudinal slot penetrating its entire handle body thickness.
  • the bolt-like slide forms an actuating handle only at one end. Therefore, the respective embodiment can be used ergonomically either only for right-handers or only for left-handers.
  • a knife with an essentially hollow handle body and a longitudinally guided knife blade which is not separable from the guide elements and therefore cannot be replaced.
  • the knife blade is a rear guide block that fills almost the entire clear cross-section of the hollow handle body and guides it on its inner surfaces is formed in one piece.
  • a relatively narrow actuation projection is molded onto the guide block.
  • Each actuation approach passes through the adjacent side wall of the handle body in a longitudinal slot. Because of the actuation approaches on both broad sides of the handle, the movable knife blade of the known knife is equally easy to use for right-handers and left-handers.
  • the slide part has an actuating handle on both broad sides of the handle body. This has made it possible, particularly in the case of safety knives whose blade is continuously spring-loaded in the direction of retraction, for the thumb to operate the actuating handle even when cutting overhead. Of course, this is equipped according to the invention Knives equally suitable for both right-handed and left-handed users.
  • Both actuating handles lead at least one longitudinal guide bar between them and also releasably hold the knife blade between them, which is only guided indirectly via the slide part on the guide bar.
  • FIG. 1 is a view of the broad side of a knife
  • FIG. 2 shows a plan view of the upper narrow side of the knife in accordance with the view arrow indicated by II in FIG. 1, the handle halves being partially cut away;
  • an easily detachably locked slide knife holding blade blade is completely visible, which at the same time forms a slide actuating handle; an operating handle is also visible on the other broad side of the handle body; the knife blade shown is in the cutting position (as in FIG. 1);
  • 3 is a plan view based on the illustration of FIG.
  • FIG. 2 shows an inside view of the right and below an inside view of the left handle shell longitudinal half according to FIGS. 1 to 3.
  • Fig. 6 is an exploded view of the inner part of the movable knife components.
  • Each knife has a substantially hollow handle body 11, which consists of two handle halves 12 l (left handle half) and 12 r (right handle half).
  • each broad side of the handle body 11 that is to say on the left broad side B l and on the right broad side B r, there is a slide longitudinal slot 13 which covers the entire length of the handle body 11, ie from the left broad side B l to the right broad side B r , enforced.
  • the slide longitudinal slot 13 is divided into two longitudinal slot halves, namely in the left longitudinal slot half H l , and in the right longitudinal slot half H r , as can be seen in particular from FIGS. 4 and 5.
  • the width b of the left longitudinal slot half H 1 is slightly larger than the width of the knife blade 14 with cutting edge 15, which in the present case represents a trapezoidal blade.
  • the otherwise not visible right handle longitudinal half 12 r in FIG. 1 forms two knife blade guide tracks 16 which are located at a parallel distance from one another, but on which the knife blade 14 is not guided directly but longitudinally displaceably parallel to the longitudinal axis x of the handle body by means of a slide designated as a whole is.
  • the knife blade guideways 16, which form guide strips for the slide 17, are described in more detail below.
  • the knife blade 14 is in its cutting position, i.e. the slider 17 is entirely moved forward to the cutting side labeled S, with a slider cover 18, which is approximately V-shaped in the front view, abuts a correspondingly designed stop A of the left slider longitudinal slot half H 1.
  • the removal of the knife blade 14 in its retracted rest position according to FIG. 3 takes place as follows: First, the knife blade 14 is held releasably locked in its advanced cutting position within the slide 17, 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 slider 17 in the retracted rest position according to FIG. 3. Since the slider cover 18 or the left actuating handle G 1 is over a Film hinge 22 on a bracket part 23 and this in turn is held on a slide slide plate 26, the slide cover 18 can be released in the pivoting direction u from the connection of the snap locking means 21. Thus, the knife blade 14 can be taken out through the wide left slide longitudinal slot half H 1 and exchanged for a new knife blade 14.
  • the articulation axis a of the film hinge 22 extends parallel to the transverse axis y of the handle body 11.
  • the slide 17 expediently represents an injection molded part made of suitable plastic, which also enables the film hinge 22.
  • the two handle halves 12 l and 12 r can optionally represent plastic injection molded parts or metal die cast parts.
  • the construction of the slide 17 can best be explained on the basis of FIGS. 1-3 with reference to FIGS. 4-6. From Fig. 1-3 it is clear that the slider longitudinal slot 13 passes through the entire thickness of the handle body 11 transversely and that the slider longitudinal slot 13 in turn penetrating slider 17 has such a transverse extent that it is on the left broadside of the handle body B l forms a left actuation handle G l and a right actuation handle G r on the right side of the handle body B r .
  • the two actuating handles G l and G r are arranged mirror-symmetrically to one another with respect to a plane that extends essentially parallel to the plane of the knife blade 14.
  • a special feature of the slide 17 and the guide arrangement on the handle body side is that the handle body 11, namely the right handle shell longitudinal half 12 r , has an inside guide rail 16 on both sides of its longitudinal slot half H r , ie on its upper and on its lower longitudinal side forms (see Fig. 4 and 5 there each upper representation).
  • the slide part 17 is now divided approximately in one plane between these two guide strips 16, the two slide part regions thus formed, which are each assigned to the actuating handles G l and G r , being detachably or firmly connected to one another.
  • the slide part area with the actuating handle G l is provided with the slide slide plate 26.
  • the slide-sliding plate 26 has two edge-like strip-shaped sliding areas 27 parallel to the plane of the knife blade 14, only one of which can be seen from FIG. 6.
  • the two sliding areas 27 are intended to rest on their parallel strip surfaces 28 of the guide strips 16 (see FIG. 4, upper illustration).
  • the slide sliding plate 26 forms a guide projection 29, which has a lower and upper guide surface 30 running transversely to the plane of the knife blade 14 (only the upper guide surface 30 can be seen from FIG. 6) on a parallel inner one Last area 31 is applied.
  • the slide slide plate 26 forms a receptacle 32 for the knife blade 14 on its broad side facing away from the guide projection 29.
  • the slide slide plate 26 also has one adjacent to its knife blade receptacle 32 Approach 33, which carries male-shaped locking pins 34 which engage in undercut locking holes of the holding bracket 23 (not designated in more detail) in a snap-locking manner.
  • the guide projection 29 has male-shaped locking pins 35 directed towards the right broad body side B r .
  • the locking pins 35 cooperate with latching holes 36 within the right actuating handle G r in a snap-locking manner.
  • the right actuating handle G r in turn can form two edge-like strip-shaped sliding areas 37 (only one sliding area 37 can be seen from FIG. 6) parallel to the plane of the knife blade 14, which abut on the other strip side faces 38 parallel to them, which from FIG. 5 (upper illustration) can be seen.
  • FIGS. 1, 2 and 6 it can also be seen that at the rear end of the slide part 17 facing away from the cutting side S (and detachably within the locking gap between 33 and 34 on a pin not shown in FIG. 6) the front one End 39 of the tension spring 19 is attached.
  • the rear end 40 of the tension spring 19 is fastened within a partially roller-shaped plug body 41, specifically by means of a cross pin 42 shown in dashed lines (FIG. 6).
  • the partially roller-shaped plug-in body 41 passes through both longitudinal handle shells 12 l and 12 r in an adapted to its outer contour handle body side transverse opening 43 with a press fit.
  • the partially roller-shaped plug-in body 41 forms an extension 45 which delimits the left slide longitudinal slot half H 1 rearward on the left broad side B 1 of the grip body.
  • the extension 45 is axially penetrated by a receiving channel 46 for the tension spring 19 which extends parallel to the longitudinal axis x of the grip body.
  • the extension 45 in turn sits snugly in a receiving slot 47 (the handle shell longitudinal half 12 l ), which represents a narrowed continuation of the longitudinal slot half H l .
  • the two actuating handles G l , G r are arranged in the foremost area (at S) of the handle body 11 and form two handle recesses 48 rising towards the cutting side S.
  • All slide-side snap-lock points - with the exception of the snap-lock point 21 - can also be made non-detachable (e.g. glued) during assembly.

Abstract

The knife comprises a substantially hollow handle, a knife blade guided longitudinally movable in a knife blade guide track and at least one guided slider member coupled indirectly with the handle end of the longitudinally movable knife blade. A slider longitudinal slot which receives the slider member extends across the entire thickness of the handle. The slider member has an operating piece on each handle broad side. Both operating pieces receive between themselves at least one guide strip extending parallel to the handle longitudinal axis. The knife blade is held between both operating pieces. The knife blade is so structured that an ergonomically beneficial thumb operable slider mechanism operation is provided for a variety of working situations in a simple way.

Description

Die Erfindung betrifft ein Messer, wie es entsprechend dem Oberbegriff des Patentanspruchs 1 durch die US-A-2 640 260 bekanntgeworden ist.The invention relates to a knife as has become known according to the preamble of claim 1 by US-A-2 640 260.

Bei dem von der US-A-2 640 260 bekannten Messer ist die aus Bandstahl gefertigte Messerklinge an den Innenflächen eines aus einem Blechzuschnitt geformten hohlen Griffkörpers geführt. Ein quer zur Breitfläche der Messerklinge federbelasteter, etwa bolzenartiger Schieber durchdringt die Messerklinge auswechselbar in einer Bohrung und den Griffkörper in einem dessen gesamte Griffkörperdicke durchsetzenden Schieber-Längsschlitz. Der bolzenartige Schieber bildet nur an einem Ende eine Betätigungshandhabe. Deshalb ist die jeweilige Ausführungsform entweder nur für Rechtshänder oder nur für Linkshänder ergonomisch sinnvoll einsetzbar.In the case of the knife known from US Pat. No. 2,640,260, the knife blade made of steel strip is guided on the inner surfaces of a hollow handle body formed from a sheet metal blank. A spring-loaded, approximately bolt-like slide, transverse to the wide surface of the knife blade, penetrates the knife blade interchangeably in a bore and the handle body in a slide longitudinal slot penetrating its entire handle body thickness. The bolt-like slide forms an actuating handle only at one end. Therefore, the respective embodiment can be used ergonomically either only for right-handers or only for left-handers.

Von der US-A-1 507 043 ist ein Messer mit einem im wesentlichen hohlen Griffkörper und einer hierin längsbewegiich geführten, von den Führungselementen nicht trennbaren, also insoweit auch nicht auswechselbaren, Messerklinge an sich bekannt. Und zwar ist mit der Messerklinge ein rückwärtiger Führungsblock, welcher nahezu den gesamten lichten Querschnitt des hohlen Griffkörpers ausfüllt und an dessen Innenflächen geführt ist, einstückig ausgebildet. An zwei diametral gegenüberliegenden Seitenflächen ist dem Führungsblock jeweils ein relativ schmaler Betätigungsansatz angeformt. Jeder Betätigungsansatz durchsetzt die benachbarte Seitenwand des Griffkörpers in einem Längsschlitz. Wegen der an beiden Griffkörper-Breitseiten vorhandenen Betätigungsansätze ist die verschiebliche Messerklinge des vorbekannten Messers für Rechtshänder und Linkshänder gleichermaßen gut bedienbar.
Ausgehend von dem durch die US-A-2 640 260 bekannten Messer, dessen für Daumenbetätigung bestimmte Betätigungshandhabe nur an einer Griffkörper-Breitseite - also für eine bestimmte Handhabung orientiert - vorhanden ist, liegt der Erfindung die Aufgabe zugrunde, das bekannte Messer bei Erzielung einer einfachen Bauweise so auszugestalten, daß die Schieberteil-Betätigungshandhabe universeller als bisher bedienbar ist. Diese Aufgabe wurde entsprechend dem Kennzeichenteil des Patentanspruchs 1 gelöst.Known from US-A-1,507,043 is a knife with an essentially hollow handle body and a longitudinally guided knife blade which is not separable from the guide elements and therefore cannot be replaced. The knife blade is a rear guide block that fills almost the entire clear cross-section of the hollow handle body and guides it on its inner surfaces is formed in one piece. On two diametrically opposed side surfaces, a relatively narrow actuation projection is molded onto the guide block. Each actuation approach passes through the adjacent side wall of the handle body in a longitudinal slot. Because of the actuation approaches on both broad sides of the handle, the movable knife blade of the known knife is equally easy to use for right-handers and left-handers.
Starting from the knife known from US-A-2 640 260, whose actuating handle intended for thumb actuation is only present on one broad side of the handle body - that is, oriented for a certain handling - the object of the invention is to achieve the known knife simple design so that the slide part operating handle is more universal than before. This object was achieved in accordance with the characterizing part of patent claim 1.

Wesentlich ist, daß das Schieberteil an beiden Griffkörper-Breitseiten je eine Betätigungshandhabe aufweist. Hiermit ist insbesondere bei Sicherheitsmessern, deren Klinge dauernd in Einfahrrichtung zugfederbelastet ist, eine ständige Daumenbedienung der Betätigungshandhabe auch bei Überkopfschneidarbeiten möglich geworden. Selbstverständlich ist das erfindungsgemäß ausgestattete Messer sowohl für den Rechtshänder als auch für den Linkshänder gleichermaßen gut geeignet.It is essential that the slide part has an actuating handle on both broad sides of the handle body. This has made it possible, particularly in the case of safety knives whose blade is continuously spring-loaded in the direction of retraction, for the thumb to operate the actuating handle even when cutting overhead. Of course, this is equipped according to the invention Knives equally suitable for both right-handed and left-handed users.

Beide Betätigungshandhaben führen zwischen sich mindestens eine Längs-Führungsleiste und nehmen außerdem die Messerklinge lösbar zwischen sich auf, die nur mittelbar über das Schieberteil an der Führungsleiste geführt ist.Both actuating handles lead at least one longitudinal guide bar between them and also releasably hold the knife blade between them, which is only guided indirectly via the slide part on the guide bar.

Weitere Einzelheiten, Vorteile und erfindungswesentliche Merkmale ergeben sich aus zusätzlichen Unteransprüchen sowie aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform 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 MesserSchmalseite entsprechend dem mit II bezeichneten Ansichtspfeil in Fig. 1, wobei die Griffschalen-Längshälften teilweise weggeschnitten sind; hierbei ist auf der linken Griffkörper-Breitseite eine leicht lösbar arretierte, die Messerklinge haltende Schieber-Abdeckung völlig sichtbar, welche zugleich eine Schieber-Betätigungshandhabe bildet; auch an der anderen Griffkörper- Breitseite ist eine Betätigungshandhabe sichtbar; die dargestellte Messerklinge befindet sich (wie in Fig. 1) in Schneidposition;
   Fig. 3 eine Draufsicht in Anlehnung an die Darstellung gemäß Fig. 2, jedoch mit abgeschwenkter Schieber-Abdeckung,
   Fig. 4 oben eine Innenansicht der rechten und unten eine Innenansicht der linken Griffschalen-Längshälfte gemäß Fig. 1 bis 3.
   Fig. 5 oben eine Außenansicht der rechten Griffschalen-Längshälfte und unten eine Außenansicht der linken Griffschalen-Längshälfte (letztere ist auch aus Fig. 1 ersichtlich) und
   Fig. 6 eine seitlich auseinandergezogene Darstellung der inneren zum Teil beweglichen Messerbauteile.Further details, advantages and features essential to the invention result from additional subclaims and from the following description of a preferred embodiment 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 shows a plan view of the upper narrow side of the knife in accordance with the view arrow indicated by II in FIG. 1, the handle halves being partially cut away; Here, on the left broadside of the grip body, an easily detachably locked slide knife holding blade blade is completely visible, which at the same time forms a slide actuating handle; an operating handle is also visible on the other broad side of the handle body; the knife blade shown is in the cutting position (as in FIG. 1);
3 is a plan view based on the illustration of FIG. 2, but with the slider cover pivoted away,
4 shows an inside view of the right and below an inside view of the left handle shell longitudinal half according to FIGS. 1 to 3.
Fig. 5 above an external view of the right half handle and half an outside view of the left half handle (the latter can also be seen in Fig. 1) and
Fig. 6 is an exploded view of the inner part of the movable knife components.

In den Zeichnungen ist ein Messer insgesamt mit der Bezugsziffer 10 dargestellt.In the drawings, a knife is shown overall with the reference number 10.

Jedes Messer weist einen im wesentlichen hohlen Griffkörper 11 auf, der aus zwei Griffschalen-Längshälften 12l (linke Griffschalen-Längshälfte) und 12r (rechte Griffschalen-Längshälfte) besteht.Each knife has a substantially hollow handle body 11, which consists of two handle halves 12 l (left handle half) and 12 r (right handle half).

An jeder Breitseite des Griffkörpers 11, also an der linken Breitseite Bl und an der rechten Breitseite Br befindet sich ein Schieber-Längsschlitz 13, welcher die gesamte Diecke des Griffkörpers 11, d.h. von der linken Breitseite Bl bis zur rechten Breitseite Br, durchsetzt. Der Schieber-Längsschlitz 13 unterteilt sich in zwei Längsschlitz-Hälften, und zwar in die linke Längsschlitzhälfte Hl, und in die rechte Längsschlitzhälfte Hr, wie insbesondere aus den Fig. 4 und 5 zu ersehen ist.On each broad side of the handle body 11, that is to say on the left broad side B l and on the right broad side B r, there is a slide longitudinal slot 13 which covers the entire length of the handle body 11, ie from the left broad side B l to the right broad side B r , enforced. The slide longitudinal slot 13 is divided into two longitudinal slot halves, namely in the left longitudinal slot half H l , and in the right longitudinal slot half H r , as can be seen in particular from FIGS. 4 and 5.

Die Breite b der linken Längsschlitz-Hälfte H₁ ist etwas größer als die Breite der im vorliegenden Falle eine Trapezklinge darstellenden Messerklinge 14 mit Schneide 15.The width b of the left longitudinal slot half H 1 is slightly larger than the width of the knife blade 14 with cutting edge 15, which in the present case represents a trapezoidal blade.

Die in Fig. 1 ansonsten nicht sichtbare rechte Griffschalen-Längshälfte 12r bildet zwei sich voneinander im Parallelabstand befindende Messerklingen-Führungsbahnen 16, auf welcher die Messerklinge 14 jedoch nicht unmittelbar sondern mittels eines insgesamt mit 17 bezeichneten Schiebers längsverschieblich parallel zur Griffkörper-Längsachse x geführt ist.The otherwise not visible right handle longitudinal half 12 r in FIG. 1 forms two knife blade guide tracks 16 which are located at a parallel distance from one another, but on which the knife blade 14 is not guided directly but longitudinally displaceably parallel to the longitudinal axis x of the handle body by means of a slide designated as a whole is.

Die Messerklingen-Führungsbahnen 16, die Führungsleisten für den Schieber 17 bilden, werden im folgenden noch näher beschrieben.The knife blade guideways 16, which form guide strips for the slide 17, are described in more detail below.

In den Fig. 1 und 2 befindet sich die Messerklinge 14 in ihrer Schneidposition, d.h. der Schieber 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 der linken Schieber-Längsschlitzhälfte H₁ anstößt.1 and 2, the knife blade 14 is in its cutting position, i.e. the slider 17 is entirely moved forward to the cutting side labeled S, with a slider cover 18, which is approximately V-shaped in the front view, abuts a correspondingly designed stop A of the left slider longitudinal slot half H 1.

Die Längsverschiebung des Schiebers 17 nach vorn zur Schneidseite S erfolgt entgegen der Rückstellkraft einer Zugfeder 19. Bei diesem Sicherheitsmesser 10 muß also der Betätigungsdaumen den Schieber 17 ständig in seiner Schneidposition halten. Allerdings sind auch Arretierungsmittel für die Schneidposition anwendbar, die beispielsweise entsprechend der DE-C- 27 36 395 die Schneidposition mit relativ geringer Daumen-Querkraft aufrechterhalten. Sobald die zugleich eine linke Griffhandhabe Gl bildende Schieber-Abdeckung 18 mit dem Daumen nicht mehr nach vorne geschoben wird, zieht also die Zugfeder 19 den Schieber 17 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 Messerklinge 14 mit ihrer gesamten Klingenbreitseite 20 innerhalb der linken Schieber-Längsschlitzhälfte Hl.The longitudinal displacement of the slide 17 toward the cutting side S takes place counter to the restoring force of a tension spring 19. In this safety knife 10, the actuating thumb must therefore keep the slide 17 in its cutting position at all times. However, locking devices are also applicable for the cutting position, which, for example according to DE-C-27 36 395, maintains the cutting position with a relatively small transverse transverse force. As soon as the slide cover 18, which at the same time forms a left handle handle G l, is no longer pushed forward with the thumb, the tension spring 19 pulls the slide 17 together with the knife blade 14 back into a rest position (FIG. 3), according to which the knife blade 14 is entirely included in the handle body 11. In this case, the knife blade 14 with its entire broad side 20 is located within the left half of the longitudinal slot H 1 .

Die Entnahme der Messerklinge 14 in ihrer zurückgezogenen Ruheposition gemäß Fig. 3 vollzieht sich wie folgt:
   Zunächst ist die Messerklinge 14 entsprechend den Darstellungen in den Fig. 1 und 2 in ihrer vorgeschobenen Schneidposition innerhalb des Schiebers 17 lösbar arretiert gehalten. Die lösbare Arretierung erfolgt über Schnappverrastmittel 21, die in Fig. 2 gestrichelt dargestellt sind.The removal of the knife blade 14 in its retracted rest position according to FIG. 3 takes place as follows:
First, the knife blade 14 is held releasably locked in its advanced cutting position within the slide 17, 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 wirksam wurde, befindet sich die Messerklinge 14 gemeinsam mit dem Schieber 17 in der zurückgezogenen Ruheposition gemäß Fig. 3. Da die Schieber-Abdeckung 18 bzw. die linke Betätigungshandhabe Gl über ein Filmscharnier 22 an einem Konsolteil 23 und dieses wiederum an einer Schieber-Gleitplatte 26 gehalten ist, läßt sich die Schieber-Abdeckung 18 in Schwenkrichtung u aus der Anbindung der Schnappverrastmittel 21 lösen. So kann die Messerklinge 14 durch die breite linke Schieber-Längsschlitzhälfte Hl heraus nach außen entnommen und gegen eine neue Messerklinge 14 ausgetauscht werden.After the tension spring has taken effect, the knife blade 14 is located together with the slider 17 in the retracted rest position according to FIG. 3. Since the slider cover 18 or the left actuating handle G 1 is over a Film hinge 22 on a bracket part 23 and this in turn is held on a slide slide plate 26, the slide cover 18 can be released in the pivoting direction u from the connection of the snap locking means 21. Thus, the knife blade 14 can be taken out through the wide left slide longitudinal slot half H 1 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 der Schieber-Gleitplatte 26 und aus entsprechend hinterschnittenen matrizenartigen Rastlöchern 25 der Schieber-Abdeckung 18 bzw. der mit ihr identischen linken Betätigungshandhabe Gl bestehen. Sobald eine neue Messerklinge 14 eingewechselt ist, wird die Schieber-Abdeckung 18 wiederum in ihre Raststellung (vergleichbar mit den Fig. 1 und 2) versetzt.From Fig. 3 it can be seen that the snap locking means 21 from undercut male-shaped locking or centering pin 24 of the slide slide plate 26 and from correspondingly undercut matrix-like locking holes 25 of the slide cover 18 or the identical left actuating handle G l consist. As soon as a new knife blade 14 has been inserted, the slide cover 18 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.

Der Schieber 17 stellt insgesamt zweckmäßig ein Spritzgußteil aus geeignetem Kunststoff dar, der auch das Filmscharnier 22 ermöglicht. Die beiden Griffschalen-Längshälften 12l und 12r können wahlweise Kunststoff-Spritzgußteile oder Metall-Druckgußteile darstellen.Overall, the slide 17 expediently represents an injection molded part made of suitable plastic, which also enables the film hinge 22. The two handle halves 12 l and 12 r can optionally represent plastic injection molded parts or metal die cast parts.

Der Aufbau des Schiebers 17 läßt sich, ausgehend von den Fig. 1-3, am besten anhand der Fig. 4-6 erklären. Aus den Fig. 1-3 wird zunächst deutlich, daß der Schieber-Längsschlitz 13 die gesamte Dicke des Griffkörpers 11 quer durchsetzt und daß der den Schieber-Längsschlitz 13 wiederum durchsetztende Schieber 17 eine solche Quererstreckung aufweist, daß er an der linken Griffkörper-Breitseite Bl eine linke Betätigungshandhabe Gl und an der rechten Griffkörper-Breitseite Br eine rechte Betätigungshandhabe Gr bildet. Hierbei sind die beiden Betätigungshandhaben Gl und Gr bezüglich einer sich im wesentlichen parallel zur Ebene der Messerklinge 14 erstreckenden Ebene spiegelsymmetrisch zueinander angeordnet.The construction of the slide 17 can best be explained on the basis of FIGS. 1-3 with reference to FIGS. 4-6. From Fig. 1-3 it is clear that the slider longitudinal slot 13 passes through the entire thickness of the handle body 11 transversely and that the slider longitudinal slot 13 in turn penetrating slider 17 has such a transverse extent that it is on the left broadside of the handle body B l forms a left actuation handle G l and a right actuation handle G r on the right side of the handle body B r . Here, the two actuating handles G l and G r are arranged mirror-symmetrically to one another with respect to a plane that extends essentially parallel to the plane of the knife blade 14.

Eine Besonderheit des Schiebers 17 und der griffkörperseitigen Führungsanordnung besteht darin, daß der Griffkörper 11, und zwar die rechte Griffschalen-Längshälfte 12r, innen an beiden Seiten ihrer Längsschlitzhälfte Hr, d.h. an deren oberen und an deren unteren Längsseite, je eine Führungsleiste 16 bildet (s. Fig. 4 und 5 dort jeweils obere Darstellung). Das Schieberteil 17 ist nun etwa in einer Ebene zwischen diesen beiden Führungsleisten 16 geteilt, wobei beide so gebildeten Schieberteil- Bereiche, die jeweils den Betätigungshandhaben Gl und Gr zugeordnet sind, lösbar oder fest miteinander verbunden sind.A special feature of the slide 17 and the guide arrangement on the handle body side is that the handle body 11, namely the right handle shell longitudinal half 12 r , has an inside guide rail 16 on both sides of its longitudinal slot half H r , ie on its upper and on its lower longitudinal side forms (see Fig. 4 and 5 there each upper representation). The slide part 17 is now divided approximately in one plane between these two guide strips 16, the two slide part regions thus formed, which are each assigned to the actuating handles G l and G r , being detachably or firmly connected to one another.

In Fig. 6 sind die beiden Schieberteil-Bereiche des Schiebers 17 mit der linken Betätigungshandhabe Gl und der rechten Betätigungshandshabe Gr besonders deutlich herausgestellt.In Fig. 6, the two slide part areas of the slide 17 with the left actuating handle G l and the right actuating handle G r are particularly clearly highlighted.

Im Zusammenhang der Fig. 5 und 6 wird folgendes deutlich:
   Der Schieberteil-Bereich mit der Betätigungshandhabe Gl ist mit der Schieber-Gleitplatte 26 versehen. Die Schieber-Gleitplatte 26 weist zwei randliche, der Ebene der Messerklinge 14 parallele streifenförmige Gleitbereiche 27 auf, von denen aus Fig. 6 nur ein einziger ersichtlich ist. Die beiden Gleitbereiche 27 sind zur Anlage an ihren parallelen Leistenflächen 28 der Führungsleisten 16 bestimmt (s. Fig. 4 obere Darstellung). Mitten zwischen beiden streifenförmigen Gleitbereichen 27 bildet die Schieber-Gleitplatte 26 einen Führungsansatz 29, welcher mit je einer quer zur Ebene der Messerklinge 14 verlaufenden unteren und oberen Führungsfläche 30 (aus Fig. 6 ist nur die obere Führungsfläche 30 zu ersehen) an einer parallelen inneren Leistenfläche 31 anliegt.The following becomes clear in connection with FIGS. 5 and 6:
The slide part area with the actuating handle G l is provided with the slide slide plate 26. The slide-sliding plate 26 has two edge-like strip-shaped sliding areas 27 parallel to the plane of the knife blade 14, only one of which can be seen from FIG. 6. The two sliding areas 27 are intended to rest on their parallel strip surfaces 28 of the guide strips 16 (see FIG. 4, upper illustration). In the middle between the two strip-shaped sliding areas 27, the slide sliding plate 26 forms a guide projection 29, which has a lower and upper guide surface 30 running transversely to the plane of the knife blade 14 (only the upper guide surface 30 can be seen from FIG. 6) on a parallel inner one Last area 31 is applied.

Zugleich bildet die Schieber-Gleitplatte 26 an ihrer dem Führungsansatz 29 abgewandten Breitseite eine Aufnahme 32 für die Messerklinge 14.At the same time, the slide slide plate 26 forms a receptacle 32 for the knife blade 14 on its broad side facing away from the guide projection 29.

Die Schieber-Gleitplatte 26 weist benachbart ihrer Messerklingen-Aufnahme 32 ebenfalls einen Ansatz 33 auf, welcher patrizenförmige Verriegelungszapfen 34 trägt, die in nicht näher bezeichnete hinterschnittene Rastlöcher der Haltekonsole 23 schnappverrastend eingreifen.The slide slide plate 26 also has one adjacent to its knife blade receptacle 32 Approach 33, which carries male-shaped locking pins 34 which engage in undercut locking holes of the holding bracket 23 (not designated in more detail) in a snap-locking manner.

An der rechten Griffkörper-Breitseite Br ist die Führung des Schiebers 17 wie folgt gelöst: aus Fig. 6 ist ersichtlich, daß der Führungsansatz 29 zur rechten Griffkörper-Breitseite Br gerichtete patrizenförmige Verriegelungszapfen 35 aufweist. Die Verriegelungszapfen 35 wirken mit Rastlöchern 36 innerhalb der rechten Betätigungshandhabe Gr schnappverrastend zusammen. Auf diese Weise kann die rechte Betätigungshandhabe Gr ihrerseits zwei randliche, der Ebene der Messerklinge 14 parallele streifenförmige Gleitbereiche 37 (aus Fig. 6 ist nur ein Gleitbereich 37 ersichtlich) bilden, welche an den ihnen parallelen anderen Leistenseitenflächen 38 anliegen, die aus Fig. 5 (obere Darstellung) ersichtlich sind.On the right broad body side B r , the guidance of the slide 17 is solved as follows: from FIG. 6 it can be seen that the guide projection 29 has male-shaped locking pins 35 directed towards the right broad body side B r . The locking pins 35 cooperate with latching holes 36 within the right actuating handle G r in a snap-locking manner. In this way, the right actuating handle G r in turn can form two edge-like strip-shaped sliding areas 37 (only one sliding area 37 can be seen from FIG. 6) parallel to the plane of the knife blade 14, which abut on the other strip side faces 38 parallel to them, which from FIG. 5 (upper illustration) can be seen.

Im Zusammenhang der Fig. 1, 2 und 6 ist auch zu ersehen, daß an dem der Schneidseite S abgewandten rückwärtigen Ende des Schieberteils 17 (und zwar lösbar innerhalb der Rastfuge zwischen 33 und 34 an einem in Fig. 6 nicht gezeigten Zapfen) das vordere Ende 39 der Zugfeder 19 befestigt ist. Das hintere Ende 40 der Zugfeder 19 ist innerhalb eines teilweise walzenförmigen Steckkörpers 41 befestigt, und zwar mittels eines gestrichelt dargestellten Querzapfens 42 (Fig. 6). Der teilweise walzenförmige Steckkörper 41 durchsetzt beide Griffschalen- Längschälften 12l und 12r in einer seiner Außenkontur angepaßten griffkörperseitigen Queröffnung 43 mit Preßsitz. Auf diese Weise wird zumindest im hinteren Bereich des Griffkörpers 11 eine stabile lösbare Steckverbindung erzielt, welche durch im übrigen Bereich der Griffschalen-Längshälften 12l und 12r vorgesehene Rastverbindungen (in Fig. 4 angedeutet und mit 44 bezeichnet) ergänzt wird.In connection with FIGS. 1, 2 and 6 it can also be seen that at the rear end of the slide part 17 facing away from the cutting side S (and detachably within the locking gap between 33 and 34 on a pin not shown in FIG. 6) the front one End 39 of the tension spring 19 is attached. The rear end 40 of the tension spring 19 is fastened within a partially roller-shaped plug body 41, specifically by means of a cross pin 42 shown in dashed lines (FIG. 6). The partially roller-shaped plug-in body 41 passes through both longitudinal handle shells 12 l and 12 r in an adapted to its outer contour handle body side transverse opening 43 with a press fit. In this way, a stable detachable plug connection is achieved at least in the rear area of the handle body 11, which is supplemented by snap-in connections provided in the remaining area of the handle shell longitudinal halves 12 l and 12 r (indicated in FIG. 4 and designated by 44).

Der teilwalzenförmige Steckkörper 41 bildet einen die linke Schieber-Längsschlitzhälfte Hl rückwärtig an der linken Griffkörper-Breitseite Bl begrenzenden Fortsatz 45. Der Fortsatz 45 ist von einem sich parallel zur Griffkörper- Längsachse x erstreckenden Aufnahmekanal 46 für die Zugfeder 19 axial durchsetzt. Der Fortsatz 45 wiederum sitzt satt in einem Aufnahmeschlitz 47 (der Griffschalen-Längshälfte 12l), der eine verengte Fortsetzung der Längsschlitzhälfte Hl darstellt.The partially roller-shaped plug-in body 41 forms an extension 45 which delimits the left slide longitudinal slot half H 1 rearward on the left broad side B 1 of the grip body. The extension 45 is axially penetrated by a receiving channel 46 for the tension spring 19 which extends parallel to the longitudinal axis x of the grip body. The extension 45 in turn sits snugly in a receiving slot 47 (the handle shell longitudinal half 12 l ), which represents a narrowed continuation of the longitudinal slot half H l .

Die beiden Betätigungshandhaben Gl, Gr sind bei ausgeschobener Messerklinge 14 im vordersten Bereich (bei S) des Griffkörpers 11 angeordnet und bilden zwei zur Schneidseite S hin ansteigende Griffmulden 48.When the knife blade 14 is pushed out, the two actuating handles G l , G r are arranged in the foremost area (at S) of the handle body 11 and form two handle recesses 48 rising towards the cutting side S.

Sämtliche schieberseitigen Schnappverrastungsstellen - mit Ausnahme der Schnappverrastungstelle 21 - können auch während der Montage unlösbar gemacht (z.B. verklebt) werden.All slide-side snap-lock points - with the exception of the snap-lock point 21 - can also be made non-detachable (e.g. glued) during assembly.

Claims (13)

  1. A knife (10) comprising a substantially hollow handle body (11), a knife blade (14), which is guided in said body so as to be longitudinally displaceable along a guide path (16), and a sliding member (17), which is releasably coupled and longitudinally displaceable with the knife blade (14) and is guided on the handle body side in a sliding member slot (13) penetrating the entire handle body thickness, characterised in that, on both handle body broad sides (Bl, Br), the sliding member (17) comprises an operating lever (Gl, Gr) in each case, which between them receive at least one guide strip (16), which extends parallel to the handle body longitudinal axis (x), is arranged on the handle body (11) and forms the guide path, and the knife blade (14) is only guided indirectly along the guide strip (16) via the sliding member (17).
  2. A knife according to claim 1, characterised in that both operating levers (Gl, Gr) are arranged and designed mirror-symmetrical to one another relative to a plane extending substantially in or parallel to the knife blade plane (at 14).
  3. A knife according to claim 1 or claim 2, characterised in that, on both longitudinal sides of the sliding member slot (13) and inside the knife cavity, the handle body (11) forms a guide strip (16), the sliding member (17) is divided approximately in a plane between the two guide strips (16) and both sliding member sections (at Gl and Gr) formed in this manner, each of which comprises an operating lever (Gl, Gr), are connected to one another.
  4. A knife according to one of claims 1 to 3, characterised in that the two sliding member sections (at Gl, and Gr) are releasably or rigidly connected to one another.
  5. A knife according to claim 4, characterised in that both sliding member sections (at Gl, and Gr) are releasably connected to one another by snap locking means (35, 36).
  6. A knife according to one of claims 3 to 5, characterised in that one sliding member section (at Gl,) forms a sliding member slide plate (26) having two peripheral strip-shaped sliding regions (27) arranged parallel to the knife blade plane (at 14) for abutment against a parallel lateral strip surface (28) and, adjoining the sliding regions (27), a guide extension (29), which penetrates the intermediate space between the two guide strips (16) arranged parallel and spaced apart, and which rests with a guide surface (30) extending transverse to the knife blade plane (at 14) against a parallel inner strip surface (31).
  7. A knife according to claim 6, characterised in that, on its broad side facing away from the guide extension (29), the sliding member slide plate (26) forms a receiving elememt (32) for the knife blade (14).
  8. A knife according to claim 7, characterised in that, adjacent its knife blade receiving element (32), the sliding member slide plate (26) forms a connection or joint, such as a film joint (22) or the like with one operating lever (Gl,).
  9. A knife according to claim 8, characterised in that on the other handle body broad side (Br) facing away from the knife blade receiving element (32), the other operating lever (Gr) is optionally detachably secured to the guide extension (29) and rests in turn with two peripheral strip-shaped sliding regions (37), which are parallel to the knife blade plane (at 14), against lateral strip surface (38) which are parallel to said sliding regions (37).
  10. A knife according to one of claims 1 to 9, characterised in that secured to the rear end of the sliding member (17) facing away from the cutting side (S) is the front end (39) of a tensioning spring (19), whose rear end (40) is secured to an at least partially roller-shaped plug element (41), which in a force-fitting manner penetrates the handle body (11) optionally comprising two longitudinal handle casing halves (12l, 12r) in a transverse opening (43) adapted in its outer contour to said plug element (41).
  11. A knife according to claim 10, characterised in that the roller-shaped plug element (41) forms an extension (45) which defines the sliding member slot (13) at the rear on one handle body broad side (Bl), fills a receiving slot (47) adjoining the slot (13) at the rear and forms a channel-like receiving duct (46) for the tensioning spring (19), which duct opens inwards in the direction of the knife handle cavity.
  12. A knife according to one of claims 1 to 11, characterised in that the guide strip (16) is formed by the longitudinal handle casing half (12r) facing away from the knife blade receiving element (32).
  13. A knife according to one of claims 1 to 12, characterised in that, when the knife blade (14) is extended, the two operating levers (Gl, Gr) are arranged in the foremost region (at S) of the handle body (11) and form two lever depressions (48) rising in the direction of the cutting side (S).
EP87108322A 1986-07-03 1987-06-11 Knife Expired - Lifetime EP0250950B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108322T ATE63254T1 (en) 1986-07-03 1987-06-11 KNIFE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3622342 1986-07-03
DE19863622342 DE3622342A1 (en) 1986-07-03 1986-07-03 KNIFE

Publications (2)

Publication Number Publication Date
EP0250950A1 EP0250950A1 (en) 1988-01-07
EP0250950B1 true EP0250950B1 (en) 1991-05-08

Family

ID=6304307

Family Applications (1)

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EP87108322A Expired - Lifetime EP0250950B1 (en) 1986-07-03 1987-06-11 Knife

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US (1) US4805304A (en)
EP (1) EP0250950B1 (en)
AT (1) ATE63254T1 (en)
DE (2) DE3622342A1 (en)
ES (1) ES2022836B3 (en)

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Also Published As

Publication number Publication date
EP0250950A1 (en) 1988-01-07
ATE63254T1 (en) 1991-05-15
US4805304A (en) 1989-02-21
ES2022836B3 (en) 1991-12-16
DE3769859D1 (en) 1991-06-13
DE3622342A1 (en) 1988-01-14
DE3622342C2 (en) 1989-04-13

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