EP2043826B1 - Knife and method for producing it - Google Patents

Knife and method for producing it Download PDF

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Publication number
EP2043826B1
EP2043826B1 EP07764438A EP07764438A EP2043826B1 EP 2043826 B1 EP2043826 B1 EP 2043826B1 EP 07764438 A EP07764438 A EP 07764438A EP 07764438 A EP07764438 A EP 07764438A EP 2043826 B1 EP2043826 B1 EP 2043826B1
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EP
European Patent Office
Prior art keywords
handle
transponder
knife
tang
handle portion
Prior art date
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EP07764438A
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German (de)
French (fr)
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EP2043826A1 (en
Inventor
Horst Löhnert
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Friedr Dick GmbH and Co KG
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Friedr Dick GmbH and Co KG
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Priority to PL07764438T priority Critical patent/PL2043826T3/en
Publication of EP2043826A1 publication Critical patent/EP2043826A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B3/00—Hand knives with fixed blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B11/00—Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement
    • B26B11/008—Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement comprising electronic or electrical features, e.g. illuminating means, computing devices or sensors

Definitions

  • the invention relates to a knife with a blade and a handle, for example made of plastic, wherein the blade is attached to the handle by enclosing an Erls through the handle and a transponder is incorporated in the handle and a method for its preparation.
  • Such knives are used, for example, in the food processing industry, especially as boning knives in slaughterhouses or cutting plants, for example, to separate meat from animals of bones.
  • Such knives are for example from the WO 01/42991 A1 and the WO 2005/108183 A1 known.
  • the transponder is cast into the knife handle or glued to the handle of the knife. It is not disclosed how to position the transponder within the handle.
  • the WO 01/42991 A1 suggests placing the transponder in a hole provided on the blade of the knife blade.
  • the Erl is an extension made integrally with the knife blade on the knife blade, which serves to attach the handle of the knife to the knife blade.
  • Transponders are well-known electronic components that allow non-contact storage and retrieval of data in a data memory of the transponder.
  • the transponder comprises a transmitting and receiving device for electromagnetic waves.
  • the transmitting and receiving device usually comprises a resonant oscillating circuit with an inductance and a capacitance, the inductance simultaneously acting as an antenna.
  • the energy required to store the data and to transmit is decoupled from the resonant circuit in the case of passive transponders.
  • a battery can be omitted.
  • active transponders are also known which have an energy source, for example a battery.
  • the control unit of the transponder By means of the control unit of the transponder, the sending and receiving of the data and the reading out and writing of the data or in the data memory is controlled.
  • Special transponders are the known RFID transponders which use electromagnetic waves in the radio frequency range (RF) for communication, for example with a data read and / or write unit.
  • RF radio frequency range
  • the invention has for its object to provide a knife and a method for its production, which avoid the disadvantages of the prior art and in particular avoid the occurrence of interference in the communication with the transponder by the metallic Erl.
  • the blade of the knife is fastened to the handle by enclosing an insert by the handle.
  • the tang does not have to be completely enclosed by the handle.
  • first a first grip part is provided, and the transponder is preferably mounted on the first grip part spaced from the tang, or from a region provided for the positioning of the tang, spaced apart.
  • the handle can preferably be made of plastic, but also made of wood or a wood / plastic material combination.
  • the first handle part can also be assembled from several parts.
  • the knife according to the invention is then completed by completing the handle completed by attaching at least a second handle part, wherein the transponder is enclosed by the handle parts.
  • the transponder is thus completely enclosed in the finished knife by the two handle parts.
  • the handle can, for example, with the enclosed transponder, are first completed and then attached to the Erl. But it can also be attached to the first Erl the first handle and then the second handle part and the transponder are attached.
  • the two handle parts can be provided as two handle half shells, wherein between the handle half shells of the transponder is inserted and the handle shells are attached to the Erl, for example, by welding, pressing or gluing.
  • the presence of the first grip part of the transponder is fixed in a predetermined position away from the Erl in the handle, whereby communication disturbances are avoided by the Erl.
  • an alternative attachment to the surface of the handle or by means of a ring or a trailer on the handle may cause damage to the transponder and / or the transponder may interfere with the use of the knife.
  • the handle is finished by injecting or encapsulating the first grip part with the transponder attached thereto and the tang posed. It is therefore positioned on the separate first handle part of the transponder and subsequently by the overmolding with plastic, the knife handle is completed, ie the outer shape of the handle is fully formed.
  • the encapsulation or encapsulation allows a tight encapsulation of the transponder against contamination.
  • the first handle part can be provided as a loose injection-molded part, the transponder being inserted into the injection-molded part.
  • the loose injection molded part is then preferred by clamping, i. Clipping, the injection molded part attached to the Erl.
  • the tang is then inserted together with the transponder and the loose injection molded part (core) in an injection molding machine and as a second handle part, a shell is molded.
  • the core may be made of a cheaper plastic material, e.g. Polypropylene (PP), manufactured as the shell. It can also be used in particular recycled plastic.
  • PP Polypropylene
  • a spacer element is provided as the first grip part, wherein the spacer element is attached to the knife blade remote end of the Erls and the transponder is attached via the spacer element on the Erl.
  • the spacer element is attached as a small separate part including transponder on Erl, whereupon the handle is molded.
  • a handle core is particularly preferably injection-molded onto the tang and the transponder is inserted into the grip core, the handle core being overmolded to complete the grip.
  • a two-component injection technique is used.
  • the handle contour ie the outer shape of the handle, completed. There is no need for a separate operation for mounting the first handle portion on the tang.
  • the first handle part is molded as an injection molded part with the provided after completion of the outer shape of the handle on Erl, to insert the transponder, a hole in the first handle part is provided and the transponder is inserted into the hole and wherein the second Handle is formed as a closure of the hole.
  • the transponder is therefore retrofitted in the handle forming finished injection molded part.
  • the hole can be provided, for example, already in the injection mold of the handle part, ie the hole is then formed directly in the injection molded part.
  • the transponder must then be inserted only after injection molding and the hole only has to be closed. Furthermore, the transponder can simply be pressed into the warm plastic of the first grip part.
  • the transponder is firmly positioned by the shrinking process associated with the cooling of the plastic. If a hole in the handle is subsequently heated, eg inductively, the transponder can also be fixed firmly in the hole. In this case, the transponder can already be enclosed in a protective cover and inserted together with the protective cover into the hole.
  • the protective cover can be shaped like this be that it closes the hole accurately.
  • the protective cover of the transponder then forms the closure of the hole, ie the second handle part.
  • the protective cover may be formed, for example, as a glass tube. Furthermore, it is possible for a further closure of the hole to be formed in addition to the protective cover.
  • the closure may e.g. be formed by a cap, casting resin, a screw cap or by liquefied plastic from the material of the first handle part.
  • the closure can be secured by clamping, welding, pressing or gluing.
  • the closure on the surface of the handle is embossed, e.g. with a logo, which ensures the authenticity of the transponder in the manner of a seal.
  • a knife according to the invention has a blade and a handle, in particular made of plastic, wherein the blade is attached to the handle by at least partially enclosing an insert through the handle.
  • the knife according to the invention is preferably produced by the method according to the invention. It is in particular a fixed knife, preferably a boning knife.
  • a transponder is positioned in the interior of the handle spaced from the Erl, in particular is located between Erl and transponder an area of the material from which the handle is made.
  • the transponder is preferably fully enclosed by the handle.
  • the handle can be made of at least two handle parts, or at least in two injection molding steps.
  • a first handle part serves for positioning of the transponder in the grip, which is spaced apart from the Erl, during its production.
  • the transponder can also be positioned by pouring, eg plastic injection molding, in the handle. The transponder is then introduced during injection molding as an insert into the injection mold.
  • FIG. 1 an inventive knife 1 is shown.
  • the knife 1 has a blade 3 with a tang 4 and a handle 5.
  • a transponder 6 is attached to the tang 4 via a plastic spacer element 7.
  • the handle 5 is made by overmoulding the insert 4 and the spacer element 7 together with the transponder 6 with a sleeve 8.
  • FIG. 2 Another inventive knife 1 is shown.
  • a hole 10 is drilled, in which a transponder 6 is inserted.
  • the hole 10 is sealed by means of a cap-like closure 11, wherein the cap 12 of the closure 11 forms by embossing a flat surface of the handle 5.
  • the invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Knives (AREA)
  • Harvester Elements (AREA)
  • Scissors And Nippers (AREA)

Abstract

A method for introducing a transponder (6) into a handle (5) of a knife (1) is proposed, the blade (3) of the knife (1) being fastened to the handle (5) by means of enclosing a tang (4) by the handle (5), comprising the method steps of: - providing a first handle part (7), - fitting the transponder (6) onto the first handle part (7) at a distance from the tang (4) and - finishing the knife (1) by completing the handle (5) by fitting at least a second handle part (8), the transponder (6) being enclosed by the handle parts (7, 8).

Description

Die Erfindung betrifft ein Messer mit einer Klinge und einem Griff, z.B. aus Kunststoff, wobei die Klinge am Griff durch Umschließen eines Erls durch den Griff befestigt ist und im Griff ein Transponder eingearbeitet ist sowie ein Verfahren zu dessen Herstellung. Derartige Messer werden z.B. in der lebensmittelverarbeitenden Industrie, speziell als Ausbeinmesser in Schlachtereien oder Zerlegebetrieben eingesetzt, z.B. um Fleisch von Tieren von Knochen zu trennen.The invention relates to a knife with a blade and a handle, for example made of plastic, wherein the blade is attached to the handle by enclosing an Erls through the handle and a transponder is incorporated in the handle and a method for its preparation. Such knives are used, for example, in the food processing industry, especially as boning knives in slaughterhouses or cutting plants, for example, to separate meat from animals of bones.

Derartige Messer sind z.B. aus der WO 01/42991 A1 und der WO 2005/108183 A1 bekannt. Bei den Messern der WO 2005/108183 A1 ist der Transponder in den Messergriff eingegossen oder wird auf den Messergriff aufgeklebt. Nicht offenbart wird, wie eine Positionierung des Transponders innerhalb des Griffs vorgenommen wird. Die WO 01/42991 A1 schlägt vor, den Transponder in ein am Erl der Messerklinge vorgesehenes Loch anzuordnen. Beim Erl handelt es sich um einen einstückig mit der Messerklinge gefertigten Fortsatz an der Messerklinge, der zur Befestigung des Griffs des Messers an der Messerklinge dient. Transponder sind wohlbekannte elektronische Bauteile, die ein berührungsfreies Speichern und Auslesen von Daten in einem Datenspeicher des Transponders erlauben. Dazu umfasst der Transponder eine Sende- und Empfangseinrichtung für elektromagnetische Wellen. Die Sende- und Empfangseinrichtung umfasst üblicherweise einen resonanten Schwingkreis mit einer Induktivität und einer Kapazität, wobei die Induktivität gleichzeitig als Antenne wirkt. Die zum Speichern der Daten und zum Senden notwendige Energie wird dabei bei passiven Transpondern aus dem Schwingkreis ausgekoppelt. Eine Batterie kann dadurch entfallen. Es sind jedoch auch so genannte aktive Transponder bekannt, die eine Energiequelle, z.B. eine Batterie, aufweisen. Mittels der Steuereinheit des Transponders wird das Senden und Empfangen der Daten sowie das Auslesen und Schreiben der Daten aus, bzw. in den Datenspeicher gesteuert. Spezielle Transponder sind die bekannten RFID Transponder, die zur Kommunikation z.B. mit einer Datenlese- und/oder Schreibeinheit elektromagnetische Wellen im Radiofrequenzbereich (RF) einsetzen.Such knives are for example from the WO 01/42991 A1 and the WO 2005/108183 A1 known. At the knives the WO 2005/108183 A1 the transponder is cast into the knife handle or glued to the handle of the knife. It is not disclosed how to position the transponder within the handle. The WO 01/42991 A1 suggests placing the transponder in a hole provided on the blade of the knife blade. The Erl is an extension made integrally with the knife blade on the knife blade, which serves to attach the handle of the knife to the knife blade. Transponders are well-known electronic components that allow non-contact storage and retrieval of data in a data memory of the transponder. For this purpose, the transponder comprises a transmitting and receiving device for electromagnetic waves. The transmitting and receiving device usually comprises a resonant oscillating circuit with an inductance and a capacitance, the inductance simultaneously acting as an antenna. The energy required to store the data and to transmit is decoupled from the resonant circuit in the case of passive transponders. A battery can be omitted. However, so-called active transponders are also known which have an energy source, for example a battery. By means of the control unit of the transponder, the sending and receiving of the data and the reading out and writing of the data or in the data memory is controlled. Special transponders are the known RFID transponders which use electromagnetic waves in the radio frequency range (RF) for communication, for example with a data read and / or write unit.

Da zur Kommunikation bei Transpondern elektromagnetische Wellen verwendet werden, kann eine unerwünschte Störung der Kommunikation durch vom metallischen Erl im Bereich des Transponders induzierte elektromagnetische Felder auftreten.Since electromagnetic waves are used for communication with transponders, undesired interference with communication can occur due to electromagnetic fields induced by the metallic tang in the region of the transponder.

Der Erfindung liegt die Aufgabe zugrunde, ein Messer und ein Verfahren zu dessen Herstellung bereitzustellen, welche die Nachteile des Standes der Technik vermeiden und insbesondere das Auftreten von Störungen bei der Kommunikation mit dem Transponder durch den metallischen Erl vermeiden.The invention has for its object to provide a knife and a method for its production, which avoid the disadvantages of the prior art and in particular avoid the occurrence of interference in the communication with the transponder by the metallic Erl.

Diese Aufgabe wird durch das Messer und das Herstellungsverfahren der unabhängigen Ansprüche gelöst. Die abhängigen Ansprüche stellen bevorzugte Ausführungsformen der Erfindung dar.This object is achieved by the knife and the manufacturing method of the independent claims. The dependent claims represent preferred embodiments of the invention.

Bei dem erfindungsgemäßen Verfahren zum Einbringen eines Transponders, insbesondere eines passiven Transponders, in einen Griff eines Messers wird die Klinge des Messers mittels Umschließen eines Erls durch den Griff am Griff befestigt. Der Erl muss dabei nicht vollständig vom Griff umschlossen sein. Erfindungsgemäß wird zunächst ein erstes Griffteil bereitgestellt und der Transponder wird vom Erl, bzw. von einem für die Positionierung des Erls vorgesehenen Bereich, beabstandetet bevorzugt am ersten Griffteil angebracht. Der Griff kann bevorzugt aus Kunststoff, aber auch aus Holz oder einer Holz/Kunststoffmaterialkombination hergestellt werden. Das erste Griffteil kann auch aus mehreren Teilen zusammengefügt sein. Das erfindungsgemäße Messer wird dann durch Vervollständigen des Griffs durch Anbringen mindestens eines zweiten Griffteils fertiggestellt, wobei der Transponder von den Griffteilen umschlossen wird. Der Transponder ist also beim fertiggestellten Messer vollständig von den beiden Griffteilen umschlossen.
Der Griff kann, z.B. mit dem darin umschlossenen Transponder, zunächst fertig gestellt werden und dann am Erl befestigt werden. Es kann aber auch zunächst der erste Griffteil am Erl befestigt werden und dann der zweite Griffteil und der Transponder angebracht werden. Beispielsweise können die beiden Griffteile als zwei Griffhalbschalen bereitgestellt werden, wobei zwischen die Griffhalbschalen der Transponder eingelegt ist und die Griffhalbschalen nachfolgend am Erl z.B. durch Verschweißen, Verpressen oder Verkleben befestigt werden. Es kann auch als erstes Griffteil der Griff zunächst halb angespritzt werden, wodurch die Klinge und der Griff miteinander abgedichtet verbunden werden und nachfolgend kann eine Teilgriffhalbschale und ein Transponder oder eine Teilgriffhalbschale mit einem Transponder angefügt werden.In the method according to the invention for introducing a transponder, in particular a passive transponder, into a handle of a knife, the blade of the knife is fastened to the handle by enclosing an insert by the handle. The tang does not have to be completely enclosed by the handle. According to the invention, first a first grip part is provided, and the transponder is preferably mounted on the first grip part spaced from the tang, or from a region provided for the positioning of the tang, spaced apart. The handle can preferably be made of plastic, but also made of wood or a wood / plastic material combination. The first handle part can also be assembled from several parts. The knife according to the invention is then completed by completing the handle completed by attaching at least a second handle part, wherein the transponder is enclosed by the handle parts. The transponder is thus completely enclosed in the finished knife by the two handle parts.
The handle can, for example, with the enclosed transponder, are first completed and then attached to the Erl. But it can also be attached to the first Erl the first handle and then the second handle part and the transponder are attached. For example, the two handle parts can be provided as two handle half shells, wherein between the handle half shells of the transponder is inserted and the handle shells are attached to the Erl, for example, by welding, pressing or gluing. It can also be sprayed as a first handle part of the handle first half, whereby the blade and the handle are sealed together and subsequently a Teilgriffhalbschale and a transponder or a Teilgriffhalbschale be attached to a transponder.

Wesentlich ist dabei, dass über das Vorhandensein des ersten Griffteils der Transponder an einer vorgegebenen Position vom Erl entfernt im Griff befestigt wird, wodurch Kommunikationsstörungen durch den Erl vermieden werden. Bei einer alternativen Befestigung auf der Oberfläche des Griffs oder mittels eines Ringes oder eines Anhängers am Griff kann es zu Beschädigungen des Transponders kommen und/oder der Transponder kann beim Benutzen des Messers störend wirken.It is essential that the presence of the first grip part of the transponder is fixed in a predetermined position away from the Erl in the handle, whereby communication disturbances are avoided by the Erl. In an alternative attachment to the surface of the handle or by means of a ring or a trailer on the handle may cause damage to the transponder and / or the transponder may interfere with the use of the knife.

Besonders bevorzugt wird der Griff durch Ein- oder Umspritzen des ersten Griffteils mit dem daran angebrachten Transponder und dem Erl fertig gestellt. Es wird also über das separate erste Griffteil der Transponder positioniert und nachfolgend durch das Umspritzen mit Kunststoff wird der Messergriff fertig gestellt, d.h. die Außenform des Griffs wird fertig ausgeformt. Das Ein- oder Umspritzen ermöglicht eine dichte Abkapselung des Transponders gegen Verschmutzung.Particularly preferably, the handle is finished by injecting or encapsulating the first grip part with the transponder attached thereto and the tang posed. It is therefore positioned on the separate first handle part of the transponder and subsequently by the overmolding with plastic, the knife handle is completed, ie the outer shape of the handle is fully formed. The encapsulation or encapsulation allows a tight encapsulation of the transponder against contamination.

Vorteilhaft kann das erste Griffteil als loses Spritzgussteil bereitgestellt werden, wobei der Transponder in das Spritzgussteil eingesteckt wird. Das lose Spritzgussteil wird dann bevorzugt durch Festklemmen, d.h. Zusammenklipsen, des Spritzgussteils am Erl befestigt. Der Erl wird dann zusammen mit dem Transponder und dem losen Spritzgussteil (Kern) in eine Spritzgussmaschine eingelegt und als zweiter Griffteil wird eine Hülle umspritzt. Gegenüber einem Anspritzen auch des ersten Griffteils kann so die Produktionszykluszeit in der Spritzgussmaschine reduziert werden. Die Farbe des Griffes kann ausschließlich über die Hülle festgelegt werden. Der Kern kann aus einem preisgünstigeren Kunststoffmaterial, z.B. Polypropylen (PP), hergestellt werden als die Hülle. Dabei kann insbesondere auch Recyclingkunststoff verwendet werden.Advantageously, the first handle part can be provided as a loose injection-molded part, the transponder being inserted into the injection-molded part. The loose injection molded part is then preferred by clamping, i. Clipping, the injection molded part attached to the Erl. The tang is then inserted together with the transponder and the loose injection molded part (core) in an injection molding machine and as a second handle part, a shell is molded. Compared to an injection of the first handle part so the production cycle time can be reduced in the injection molding machine. The color of the handle can only be determined via the cover. The core may be made of a cheaper plastic material, e.g. Polypropylene (PP), manufactured as the shell. It can also be used in particular recycled plastic.

Besonders bevorzugt wird als erstes Griffteil ein Abstandhalteelement bereitgestellt, wobei das Abstandhalteelement am messerklingenentfernten Ende des Erls befestigt wird und der Transponder über das Abstandhalteelement am Erl befestigt wird. Das Abstandhalteelement wird als kleines separates Teil inklusive Transponder am Erl befestigt, woraufhin der Griff angespritzt wird.Particularly preferably, a spacer element is provided as the first grip part, wherein the spacer element is attached to the knife blade remote end of the Erls and the transponder is attached via the spacer element on the Erl. The spacer element is attached as a small separate part including transponder on Erl, whereupon the handle is molded.

Besonders bevorzugt wird zum Bereitstellen des ersten Griffteils ein Griffkern an den Erl angespritzt und der Transponder wird in den Griffkern eingelegt, wobei zum Vervollständigen des Griffs der Griffkern umspritzt wird. Es wird also eine Zweikomponentenspritztechnik angewandt. Beim Fertigstellen, also beim zweiten Spritzgang, wird die Griffkontur, also die Außenform des Griffs, fertig gestellt. Es wird kein separater Arbeitsgang zur Montage des ersten Griffteils am Erl benötigt.To provide the first grip part, a handle core is particularly preferably injection-molded onto the tang and the transponder is inserted into the grip core, the handle core being overmolded to complete the grip. Thus, a two-component injection technique is used. When finishing, so the second spray pass, the handle contour, ie the outer shape of the handle, completed. There is no need for a separate operation for mounting the first handle portion on the tang.

In einer weiteren Ausprägung des erfindungsgemäßen Verfahrens wird das erste Griffteil als Spritzgussteil mit der nach dem Fertigstellen vorgesehenen Außenform des Griffs am Erl angespritzt, wobei zum Einlegen des Transponders ein Loch im ersten Griffteil vorgesehen ist und der Transponder in das Loch eingeschoben wird und wobei das zweite Griffteil als ein Verschluss des Loches ausgebildet wird. Der Transponder wird also nachträglich in das den Griff bildende fertige Spritzgussteil angebracht. Das Loch kann dabei z.B. bereits in der Spritzgussform des Griffteils vorgesehen sein, d.h. das Loch ist dann in dem Spritzgussteil direkt eingeformt. Der Transponder muss dann nur nach dem Spritzgießen eingeschoben werden und das Loch muss lediglich verschlossen werden. Weiter kann der Transponder einfach in den warmen Kunststoff des ersten Griffteils eingedrückt werden. Dadurch wird der Transponder durch den mit dem Erkalten des Kunststoffes verbundenen Schrumpfungsprozess fest positioniert. Wenn ein im Griffteil vorhandenes Loch nachträglich, z.B. induktiv, erhitzt wird, kann der Transponder ebenfalls fest in dem Loch passgenau positioniert werden. Dabei kann der Transponder bereits in einer Schutzhülle eingeschlossen sein und zusammen mit der Schutzhülle in das Loch eingeschoben werden. Die Schutzhülle kann so ausgeformt sein, dass sie das Loch passgenau verschließt. Die Schutzhülle des Transponders bildet dann den Verschluss des Loches, d.h. das zweite Griffteil, aus. Die Schutzhülle kann z.B. als ein Glasrohr ausgebildet sein. Weiter ist es möglich, dass zusätzlich zur Schutzhülle ein weiterer Verschluss des Loches ausgebildet wird.In a further embodiment of the method according to the invention, the first handle part is molded as an injection molded part with the provided after completion of the outer shape of the handle on Erl, to insert the transponder, a hole in the first handle part is provided and the transponder is inserted into the hole and wherein the second Handle is formed as a closure of the hole. The transponder is therefore retrofitted in the handle forming finished injection molded part. The hole can be provided, for example, already in the injection mold of the handle part, ie the hole is then formed directly in the injection molded part. The transponder must then be inserted only after injection molding and the hole only has to be closed. Furthermore, the transponder can simply be pressed into the warm plastic of the first grip part. As a result, the transponder is firmly positioned by the shrinking process associated with the cooling of the plastic. If a hole in the handle is subsequently heated, eg inductively, the transponder can also be fixed firmly in the hole. In this case, the transponder can already be enclosed in a protective cover and inserted together with the protective cover into the hole. The protective cover can be shaped like this be that it closes the hole accurately. The protective cover of the transponder then forms the closure of the hole, ie the second handle part. The protective cover may be formed, for example, as a glass tube. Furthermore, it is possible for a further closure of the hole to be formed in addition to the protective cover.

Wenn das Loch in das erste Griffteil nach dessen Anspritzung an den Erl gebohrt wird, können vorhandene Spritzgussformen ohne Modifikation für die Herstellung des erfindungsgemäßen Messers verwendet werden. Der Verschluss kann z.B. durch eine Kappe, Gießharz, einen Schraubverschluss oder durch verflüssigten Kunststoff aus dem Material des ersten Griffteils ausgebildet sein. Dabei kann der Verschluss durch Anklemmen, Verschweißen, Einpressen oder Einkleben gesichert sein.When the hole is drilled in the first handle portion after its injection at the Erl, existing injection molds can be used without modification for the production of the knife according to the invention. The closure may e.g. be formed by a cap, casting resin, a screw cap or by liquefied plastic from the material of the first handle part. The closure can be secured by clamping, welding, pressing or gluing.

Bevorzugt wird auf den Verschluss an der Oberfläche des Griffs eine Prägung, z.B. mit einem Logo, eingebracht, wodurch die Authentizität des Transponders nach Art eines Siegels gesichert wird.Preferably, the closure on the surface of the handle is embossed, e.g. with a logo, which ensures the authenticity of the transponder in the manner of a seal.

Ein erfindungsgemäßes Messer weist eine Klinge und einen Griff insbesondere aus Kunststoff auf, wobei die Klinge am Griff durch zumindest teilweises Umschließen eines Erls durch den Griff befestigt ist. Das erfindungsgemäße Messer ist bevorzugt durch das erfindungsgemäße Verfahren hergestellt. Es handelt sich insbesondere um ein feststehendes Messer, bevorzugt um ein Ausbeinmesser. Erfindungsgemäß ist ein Transponder im Innern des Griffs vom Erl beabstandet positioniert, insbesondere befindet sich zwischen Erl und Transponder ein Bereich aus dem Material aus dem der Griff hergestellt ist. Der Transponder ist bevorzugt vollständig vom Griff umschlossen. Dazu kann der Griff aus zumindest zwei Griffteilen, oder zumindest in zwei Spritzgussschritten, hergestellt sein. Ein erstes Griffteil dient dabei zur vom Erl beabstandeten Positionierung des Transponders im Griff bei dessen Herstellung. Der Transponder kann auch durch Eingießen, z.B. Kunststoffspritzgießen, im Griff positioniert sein. Der Transponder ist dann beim Spritzgießen als Einlegeteil ins Spritzgusswerkzeug eingebracht.A knife according to the invention has a blade and a handle, in particular made of plastic, wherein the blade is attached to the handle by at least partially enclosing an insert through the handle. The knife according to the invention is preferably produced by the method according to the invention. It is in particular a fixed knife, preferably a boning knife. According to the invention, a transponder is positioned in the interior of the handle spaced from the Erl, in particular is located between Erl and transponder an area of the material from which the handle is made. The transponder is preferably fully enclosed by the handle. For this purpose, the handle can be made of at least two handle parts, or at least in two injection molding steps. A first handle part serves for positioning of the transponder in the grip, which is spaced apart from the Erl, during its production. The transponder can also be positioned by pouring, eg plastic injection molding, in the handle. The transponder is then introduced during injection molding as an insert into the injection mold.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen näher erläutert.

  • Figur 1 zeigt ein erfindungsgemäßes Messer, bei dem ein Transponder durch Umspritzen in den Griff des Messers eingebracht ist.
  • Figur 2 zeigt ein erfindungsgemäßes Messer, bei dem ein Transponder in ein Loch im Griff des Messers eingeschoben ist.
The invention will be explained in more detail by means of embodiments with reference to the drawings.
  • FIG. 1 shows a knife according to the invention, in which a transponder is introduced by encapsulation in the handle of the knife.
  • FIG. 2 shows a knife according to the invention, in which a transponder is inserted into a hole in the handle of the knife.

Die Figuren der Zeichnungen zeigen den erfindungsgemäßen Gegenstand stark schematisiert und sind nicht maßstäblich zu verstehen. Die einzelnen Bestandteile des erfindungsgemäßen Gegenstandes sind so dargestellt, dass ihr Aufbau gut gezeigt werden kann.The figures of the drawings show the subject matter of the invention in a highly schematic manner and are not to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In Figur 1 ist ein erfindungsgemäßes Messer 1 dargestellt. Das Messer 1 weist eine Klinge 3 mit einem Erl 4 und einen Griff 5 auf. Am klingenentfernten Ende des Erls 4 ist ein Transponder 6 über ein Abstandshalteelement 7 aus Kunststoff am Erl 4 befestigt. Der Griff 5 ist durch Umspritzen des Erls 4 und des Abstandshalteelements 7 zusammen mit dem Transponder 6 mit einer Hülle 8 gefertigt.In FIG. 1 an inventive knife 1 is shown. The knife 1 has a blade 3 with a tang 4 and a handle 5. At the blade-distal end of the earl 4, a transponder 6 is attached to the tang 4 via a plastic spacer element 7. The handle 5 is made by overmoulding the insert 4 and the spacer element 7 together with the transponder 6 with a sleeve 8.

In Figur 2 ist ein weiteres erfindungsgemäßes Messer 1 dargestellt. In einen durch Umspritzen des Erls 4 ausgeformten Griffteil 9 ist ein Loch 10 gebohrt, in den ein Transponder 6 eingeschoben ist. Das Loch 10 ist mittels eines kappenartigen Verschlusses 11 versiegelt, wobei die Kappe 12 des Verschlusses 11 durch Prägen eine flache Oberfläche des Griffes 5 ausbildet.In FIG. 2 Another inventive knife 1 is shown. In a formed by molding over the Erls 4 grip part 9 a hole 10 is drilled, in which a transponder 6 is inserted. The hole 10 is sealed by means of a cap-like closure 11, wherein the cap 12 of the closure 11 forms by embossing a flat surface of the handle 5.

Vorgeschlagen wird ein Verfahren zum Einbringen eines Transponders 6 in einen Griff 5 eines Messers 1, wobei die Klinge 3 des Messers 1 mittels Umschließen eines Erls 4 durch den Griff 5 am Griff 5 befestigt wird, mit den Verfahrensschritten:

  • Bereitstellen eines ersten Griffteils 7,
  • vom Erl 4 beabstandetes Anbringen des Transponders 6 am ersten Griffteil 7 und
  • Fertigstellen des Messers 1 durch Vervollständigen des Griffs 5 durch Anbringen mindestens eines zweiten Griffteils 8, wobei der Transponder 6 von den Griffteilen 7,8 umschlossen wird.
Proposed is a method for introducing a transponder 6 into a handle 5 of a knife 1, wherein the blade 3 of the knife 1 is fastened to the handle 5 by enclosing an ear 4 by the handle 5, with the method steps:
  • Providing a first grip part 7,
  • from the Erl 4 spaced attachment of the transponder 6 on the first handle part 7 and
  • Completing the knife 1 by completing the handle 5 by attaching at least a second handle part 8, wherein the transponder 6 is enclosed by the handle parts 7,8.

Die Erfindung beschränkt sich nicht auf die vorstehend angegebenen Ausführungsbeispiele. Vielmehr ist eine Anzahl von Varianten denkbar, welche auch bei grundsätzlich anders gearteter Ausführung von den Merkmalen der Erfindung Gebrauch machen.The invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

Claims (8)

  1. Method for producing a knife (1) having a handle (5), preferably of plastics material, into which a passive transponder (6) is introduced, the blade (3) of the knife (1) being secured to the handle (5) by a tang (4) being at least partially surrounded by the handle (5), characterised by the method steps of:
    - providing a first handle portion (7, 9),
    - fitting the transponder (6), preferably to the first handle portion (7, 9), spaced-apart from the tang (4) and
    - finishing the knife (1) by completing the handle (5) by fitting at least a second handle portion (8, 11), the transponder (6) being surrounded by the handle portions (7, 9, 8, 11),
    the handle (5) being finished by the first handle portion (7) with the transponder (6) and the tang (4) fitted thereto being moulded in or around.
  2. Method according to claim 1,
    characterised in that
    the first handle portion is provided as a loose injection-moulding component, the transponder (6) being fitted in the injection-moulding component and the loose injection-moulding component being secured to the tang (4), preferably by the injection-moulding component being clamped.
  3. Method according to claim 1,
    characterised in that
    a spacer element (7) is provided as the first handle portion, the spacer element (7) being secured to the end of the tang (4) remote from the knife blade and the transponder (6) being secured to the tang (4) via the spacer element (7).
  4. Method according to claim 1,
    characterised in that
    a handle core is moulded on the tang and the transponder (6) is introduced into the handle core in order to provide the first handle portion, and the handle core being moulded around in order to complete the handle.
  5. Method for producing a knife (1) having a handle (5), preferably of plastics material, into which a passive transponder (6) is introduced, the blade (3) of the knife (1) being secured to the handle (5) by a tang (4) being at least partially surrounded by the handle (5), characterised by the method steps of:
    - providing a first handle portion (7, 9),
    - fitting the transponder (6), preferably to the first handle portion (7, 9), spaced-apart from the tang (4) and
    - finishing the knife (1) by completing the handle (5) by fitting at least a second handle portion (8, 11), the transponder (6) being surrounded by the handle portions (7, 9, 8, 11),
    the first handle portion (9) having the external shape of the handle (5) provided after the finishing operation being secured to the tang (4), in particular being moulded on as an injection-moulding component, a hole (10) being provided in the first handle portion (9) for the introduction of the transponder (6) and the transponder (6) being inserted into the hole (10) and the second handle portion (11) being in the form of a closure of the hole (10), the closure being formed by a cap or a screw type closure and being secured by welding or adhesive-bonding.
  6. Method according to claim 5,
    characterised in that
    the hole (10) is drilled in the first handle portion (9), in particular after it has been moulded on the tang (4).
  7. Method according to either claim 5 or claim 6,
    characterised in that
    an impression is formed on the closure (11) at the surface of the handle (5).
  8. Knife (1) having a blade (3) and a handle (5), in particular of plastics material, preferably a boning knife, the blade (3) being secured to the handle (5) by a tang (4) being surrounded by the handle (5),
    characterised in that
    a passive transponder (6) is positioned inside the handle (5) spaced-apart from the tang (4),
    the transponder (6) being moulded or injection-moulded in the handle (5) or being introduced into a hole (10) of the handle (5) that is provided with a welded or adhesively-bonded closure in the form of a cap or screw type closure.
EP07764438A 2006-07-12 2007-07-05 Knife and method for producing it Active EP2043826B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07764438T PL2043826T3 (en) 2006-07-12 2007-07-05 Knife and method for producing it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006032150A DE102006032150B4 (en) 2006-07-12 2006-07-12 Knife and method for its production
PCT/DE2007/001197 WO2008006342A1 (en) 2006-07-12 2007-07-05 Knife and method for producing it

Publications (2)

Publication Number Publication Date
EP2043826A1 EP2043826A1 (en) 2009-04-08
EP2043826B1 true EP2043826B1 (en) 2011-02-16

Family

ID=38596373

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EP07764438A Active EP2043826B1 (en) 2006-07-12 2007-07-05 Knife and method for producing it

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Country Link
EP (1) EP2043826B1 (en)
AT (1) ATE498481T1 (en)
DE (2) DE102006032150B4 (en)
DK (1) DK2043826T3 (en)
ES (1) ES2360194T3 (en)
PL (1) PL2043826T3 (en)
PT (1) PT2043826E (en)
WO (1) WO2008006342A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE202014104429U1 (en) 2013-10-01 2015-01-08 Friedr. Dick Gmbh & Co. Kg Knife with an RFID transponder arranged on the Erl
WO2023014385A1 (en) * 2021-08-02 2023-02-09 Dexter-Russell, Inc. A tool having a detectable wireless marker or tag

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE102008026716A1 (en) * 2008-06-04 2009-12-17 Neukämper-Gräbener, Uwe Method and device for detecting butcher hand tools
DE102008026678B4 (en) * 2008-06-04 2014-12-04 ASTRA Gesellschaft für Asset Management mbH & Co. KG hand tool
DE102013113413A1 (en) 2013-12-03 2015-06-03 Michael Karau Dismantling or disassembling knife
DE202014100510U1 (en) 2014-02-05 2014-02-25 Michael Karau Dismantling or disassembling knife
ES2844589B2 (en) * 2020-01-22 2024-07-16 Martinez Y Gascon S A System for monitoring the use of hand tools, hand tool and procedure for monitoring the use of hand tools

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ES180400Y (en) * 1971-05-08 1973-11-16 Amf Mares Sub, S. P. A. A HANDLE FOR SPORTS KNIVES.
AUPQ453499A0 (en) * 1999-12-08 2000-01-06 Herbert Mcivor Holdings Pty Ltd A system and method for automatically logging article use and an article adapted for such
DE102004022290B4 (en) * 2004-05-04 2009-08-20 Friedr. Dick Gmbh & Co. Kg Knife and knife registration system
DE102006012070A1 (en) * 2006-03-16 2007-09-20 Zwilling J. A. Henckels Ag Cutting tool e.g. knife, has gripping part arranged at blade, where gripping part has electric device e.g. transponder, which is designed as integral component of gripping part in shock-proof and water-protected manner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014104429U1 (en) 2013-10-01 2015-01-08 Friedr. Dick Gmbh & Co. Kg Knife with an RFID transponder arranged on the Erl
WO2015049096A1 (en) 2013-10-01 2015-04-09 Friedr. Dick Gmbh & Co.Kg Knife having an rfid transponder arranged on the tang
DE102013219875A1 (en) 2013-10-01 2015-04-16 Fried. Dick Gmbh & Co. Kg Knife with an RFID transponder arranged on the Erl
CN105658385A (en) * 2013-10-01 2016-06-08 弗里德.狄克两合公司 Knife having an rfid transponder arranged on the tang
CN105658385B (en) * 2013-10-01 2018-01-26 弗里德.狄克两合公司 Cutter with the RFID transponders being arranged on tang and the method for manufacturing cutter
WO2023014385A1 (en) * 2021-08-02 2023-02-09 Dexter-Russell, Inc. A tool having a detectable wireless marker or tag

Also Published As

Publication number Publication date
WO2008006342A1 (en) 2008-01-17
DE102006032150A1 (en) 2008-01-24
EP2043826A1 (en) 2009-04-08
PL2043826T3 (en) 2011-09-30
DK2043826T3 (en) 2011-06-06
DE502007006508D1 (en) 2011-03-31
ATE498481T1 (en) 2011-03-15
DE102006032150B4 (en) 2009-08-06
ES2360194T3 (en) 2011-06-01
PT2043826E (en) 2011-05-12

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