WO1986002872A1 - Grinding and sharpening device for knives and similar objects - Google Patents

Grinding and sharpening device for knives and similar objects Download PDF

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Publication number
WO1986002872A1
WO1986002872A1 PCT/EP1985/000583 EP8500583W WO8602872A1 WO 1986002872 A1 WO1986002872 A1 WO 1986002872A1 EP 8500583 W EP8500583 W EP 8500583W WO 8602872 A1 WO8602872 A1 WO 8602872A1
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WO
WIPO (PCT)
Prior art keywords
grinding
support legs
support
belt
clamping
Prior art date
Application number
PCT/EP1985/000583
Other languages
German (de)
French (fr)
Inventor
Elio Santolini
Original Assignee
Elio Santolini
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elio Santolini filed Critical Elio Santolini
Publication of WO1986002872A1 publication Critical patent/WO1986002872A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors

Definitions

  • the invention relates to a grinding and stripping device for knives and the like. with two support legs which are at an acute angle to one another and each have a grinding or peeling surface. • .. - '
  • the cutting edges of knives and similar blades must be ground with driven grinding wheels or grinding belts as soon as a certain amount of wear and thus dulling has occurred.
  • the time intervals between two regrinding processes can be selected to be considerably larger if the knives are in the meantime re-sharpened with a grinding and honing device.
  • the use of pulling steels is known.
  • pull-off devices with the features mentioned at the beginning; the two support legs, which are at an acute angle to one another, each have a peeling surface, which usually consists of a steel or ceramic body, which form a V-shaped notch in which the cutting edge of the knife is drawn along. A pull-off effect can indeed be achieved with this; Regrinding the cutting edge is not possible, however, since there is no significant material removal.
  • the object of the invention is therefore to create a grinding and honing device of the type mentioned at the outset, with which a substantial grinding effect is also achieved, so that knives and similar blades can be reground and removed.
  • the device should • be of simple construction and allow easy handling.
  • the two strip-shaped support legs are connected to each other in their upper ends by a joint and each carry a soft pad on the outside that a common sanding belt stretched over the outer sides of the two support legs and each detachable at their lower ends is fixed and that the two support legs are each connected at their lower end with a clamping device, each of which has a clamping jaw that can be clamped from below in the direction of the support leg.
  • Abrasive belt is used as an abrasive and abrasive, which can be selected with different grain sizes.
  • the soft support enables the use of sanding belt as an abrasive because the sanding belt is pressed elastically against the blade, but damage or destruction of the sanding belt is excluded. At the same time, the soft rest gives the sanding belt the necessary tension so that wrinkles are prevented. Due to the articulated connection, the support legs can be arranged in different angular positions, which are optimal for the respective grinding and honing process. The grinding and pulling device can be easily clamped on a table edge. 3 -
  • the device is of simple construction and enables easy handling. Since the device is attached to a table edge or the like before use and does not have to be held by hand, the risk of injury during use is very low.
  • the device Due to the spread arrangement of the two support legs, which are connected to one another at their upper ends, the device maintains considerable stability in its position of use. At the same time, however, the device can be folded up in a simple manner and can be stored with only a very small space requirement.
  • abrasive belt results in a sufficiently wide abrasive surface which is used uniformly over its entire width and is available in a constant width.
  • the grinding belt can be easily replaced, a sharp grinding surface is available in each case, the grain size of which can be optimally selected for the respective grinding and honing process.
  • the renewal of the grinding surface by changing the grinding belt is quick and causes only very low costs.
  • the flexible support of the sanding belt through the soft support of the support legs leads to a good sanding and pulling result.
  • a burr that arises during grinding is largely removed when removing.
  • the cutting thus formed shows excellent cutting properties; in particular, the remaining low chastity proves a very good cutting result when pulling the train.
  • the elastic support of the abrasive belt causes the material to be removed quickly and the cutting edge to be removed evenly.
  • the device is particularly suitable not only for processing knife blades and the like, but also for scissors and similar blades.
  • the two support legs consist of sheet metal profiles and have at least on one, preferably on both longitudinal edges an outwardly projecting edge strip, the height of which is less than the thickness of the soft support with the abrasive belt lying thereon.
  • edge strips form protective edges which prevent the cutting edge to be pressed against the edge of the grinding belt too tightly and thereby cut it.
  • Dadurc is also wh ⁇ possibility of damaging the sanding belt continuously when knives are sharpened, more complete ⁇ cutting close to the stitching approach a strongly curved course has, for example boning knife.
  • the lower ends of the support legs are each angled outwards and form a support foot.
  • the clamping devices preferably each grip an upper, horizontal rod over the section of the grinding belt lying on the support foot and thereby simultaneously form the clamping for the grinding belt, which can be tensioned and clamped in a simple manner.
  • Fig. 3 is an enlarged partial section along the line III-III in Fig. 2 and
  • Fig. 4 is an enlarged partial section along the line IV-IV in Fig. 2.
  • a table top 1 to which the grinding and pulling device is attached, is indicated by dash-dotted lines.
  • Support leg 2 the ends of the grinding belt 5 are each clamped by means of a clamping plate 6, which can be clamped and released by means of a screw 7 and a nut 7 a, which is arranged on the inside of the support leg 2.
  • a clamping device 8 is provided, which in the exemplary embodiment according to FIG. 1 has a rod 9 which is movably inserted in a transverse bore of each support leg 2 and which is angled downward to a threaded rod 10 .
  • a clamping jaw 11 can be clamped against the table top 1 from below by means of a nut 12, around the supporting leg 2 - -
  • both support legs 2 are fastened to the table top 1 in the manner shown in FIG. 1, the grinding and stripping device forms a stable triangle which absorbs the forces occurring during use.
  • a knife blade 13 which is indicated in the drawing by dash-dotted lines, is preferably moved in a vertical position along the two outer sides of the support legs 2 provided with the grinding belt 5.
  • the pressure exerted and the direction of movement influence the desired grinding or peeling action.
  • the knife 13 is preferably guided in alternating circular movements on the right and on the left side of the grinding and pulling device. The subsequent removal takes place at low pressure essentially with a movement from top to bottom along the grinding belt.
  • FIGS. 2-4 differs from the previously described exemplary embodiment in that the two support legs 2 'consist of sheet metal profiles, the two longitudinal edges of which are bent outwards in such a way that they are on the two longitudinal edges of each support leg 2 'form an outwardly projecting edge strip 14 which acts as a protective edge.
  • the height of these edge strips 14 is selected such that it is somewhat less than the thickness of the soft support 4 ', which in the exemplary embodiment according to FIGS. 2-4 is made of felt, including the thickness of the sanding belt 5.
  • the protective edge 15 formed by the edge strip 14 therefore comes into contact with the blade 13 to be machined, as soon as the soft support 4 'has been pressed together to a certain extent. This prevents an excessive contact pressure from being exerted which could damage the edge of the grinding belt 5.
  • the lower ends of the support legs 2 ' are each angled outwards and form a support leg 16 which lies on the table top 1.
  • the clamping devices 8 * are screw clamps, the threaded clamping screws 10 'of which at their upper end each have a clamping plate 11' which is clamped against the table top 1 from below.
  • the sanding belt sections 5a and 5b are bent up from the edge of the Elechorofils ' loops 17 on both sides, which guide the rod 9' with play.
  • the support legs 2 ' are articulated to one another in the manner already described by a hinge 3, which can be fastened to the two support legs 2' or is formed by the latter itself.
  • one end of the belt 5 a is first clamped to the support foot 16 of the one supporting leg 2 1 by means of the clamping device 8 '.
  • the clamping device 8 'of which is still loosened, the band end 5 b, which preferably protrudes somewhat further, is pulled and held by hand while the clamping 8th -
  • the tape end 5 b is tensioned and clamped at the same time.
  • the sanding belt 5 can also be attached in another way to the soft support 4 or 4 ', for example by means of a Velcro tape or by means of adhesive.
  • the grinding belt 5 runs between the protruding corners of the edge strips 14 15 and is thereby guided and centered.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A grinding and sharpening device for knives and similar objects, equipped with two support legs (2) which at their top ends are linked to one another by an articulation (3) and whose lower ends are attached by means of a clamping device (8) to a table-top. The supporting legs (2) each carry on their external side a tensioned common abrasive strip (5) on a soft covering material (4). The knife to be sharpened (13) is moved alternately along each of the two support legs with circular movements and is thus ground and sharpened.

Description

Schleif- und Abziehvorrichtung für Messer u.dglGrinding and pulling device for knives and the like
Die Erfindung betrifft eine Schleif- und Abziehvorrich¬ tung für Messer u.dgl. mit zwei in spitzem Winkel zu¬ einander stehenden Tragschenkeln, die jeweils eine Schleif- bzw. Abziehoberfläche aufweisen. • .. - 'The invention relates to a grinding and stripping device for knives and the like. with two support legs which are at an acute angle to one another and each have a grinding or peeling surface. • .. - '
Die Schneiden von Messern und ähnlichen Klingen müssen mit angetriebenen Schleif cheiben oder Schleifbändern geschliffen werden, sobald ein gewisser Verschleiß und damit eine Abstumpfung eingetreten ist. Die zeitlichen Abstände zwischen zwei NachschleifVorgängen können we¬ sentlich größer gewählt werden, wenn die Messer in der Zwischenzeit mit einer Schleif- und Abziehvorrichtung nachgeschärft werden. Zu diesem Zweck ist die Verwen¬ dung von Abziehstählen bekannt. Daneben gibt es Abzieh- Vorrichtungen mit den eingangs genannten Merkmalen; die beiden in spitzem Winkel zueinanderstehenden Tragschenkel weisen jeweils eine Abziehoberfläche auf, die üblicher¬ weise aus einem Stahl- oder Keramikkörper besteht, die eine V-förmige Kerbe bilden, in der die Schneide des Messers entlanggezogen wird. Damit läßt sich zwar eine Abziehwirkung erreichen; ein Nachschleifen der Schneide ist jedoch nicht möglich, da kein wesentlicher Material¬ abtrag erfolgt. - 2 -The cutting edges of knives and similar blades must be ground with driven grinding wheels or grinding belts as soon as a certain amount of wear and thus dulling has occurred. The time intervals between two regrinding processes can be selected to be considerably larger if the knives are in the meantime re-sharpened with a grinding and honing device. For this purpose, the use of pulling steels is known. There are also pull-off devices with the features mentioned at the beginning; the two support legs, which are at an acute angle to one another, each have a peeling surface, which usually consists of a steel or ceramic body, which form a V-shaped notch in which the cutting edge of the knife is drawn along. A pull-off effect can indeed be achieved with this; Regrinding the cutting edge is not possible, however, since there is no significant material removal. - 2 -
Aufgabe der Erfindung ist es daher, eine Schleif- und Abziehvorrichtung der eingangs genannten Gattung zu schaffen, mit der auch eine wesentliche Schleifwirkung erzielt wird, so daß Messer und ähnliche Klingen nach- geschliffen und abgezogen werden können. Die Vorrich- • tung soll von einfachem Aufbau sein und eine bequeme Handhabung ermöglichen.The object of the invention is therefore to create a grinding and honing device of the type mentioned at the outset, with which a substantial grinding effect is also achieved, so that knives and similar blades can be reground and removed. The device should • be of simple construction and allow easy handling.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die beiden leistenförmigen Tragschenkel in ihren oberen Enden durch ein Gelenk miteinander verbunden sind und an ihrer Außenseite jeweils eine weiche Auflage tragen, daß ein gemeinsames Schleifband über die Außenseiten der beiden Tragschenkel gespannt und jeweils an deren unteren Enden lösbar befestigt ist und daß die beiden Tragschenkel an ihrem unteren Ende jeweils.-mit einer Klemmvorrichtung verbunden sind, die jeweils eine von unten in Richtung auf den Tragschenkel spannbare Klemm¬ backe aufweist.This object is achieved in that the two strip-shaped support legs are connected to each other in their upper ends by a joint and each carry a soft pad on the outside that a common sanding belt stretched over the outer sides of the two support legs and each detachable at their lower ends is fixed and that the two support legs are each connected at their lower end with a clamping device, each of which has a clamping jaw that can be clamped from below in the direction of the support leg.
Als Schleif- und Abziehmittel wird Schleifband verwendet, das mit unterschiedlicher Körnung ausgewählt werden kann. Die weiche Auflage ermöglicht die Verwendung von Schleif¬ band als Schleifmittel, weil das Schleifband elastisch an die Klinge angedrückt wird, wobei jedoch eine Beschädi¬ gung oder Zerstörung des Schleifbandes ausgeschlossen ist Zugleich gibt die weiche Auflage dem Schleifband die nö¬ tige Spannung, so daß eine Faltenbildung verhindert wird. Durch die gelenkige Verbindung können die Tragschenkel in unterschiedlichen Winkelstellungen angeordnet werden, die für den jeweiligen Schleif- und Abziehvorgang op¬ timal sind. Die Schleif- und Abziehvorrichtung kann in einfacher Weise an einer Tischkante aufgespannt werden. 3 -Abrasive belt is used as an abrasive and abrasive, which can be selected with different grain sizes. The soft support enables the use of sanding belt as an abrasive because the sanding belt is pressed elastically against the blade, but damage or destruction of the sanding belt is excluded. At the same time, the soft rest gives the sanding belt the necessary tension so that wrinkles are prevented. Due to the articulated connection, the support legs can be arranged in different angular positions, which are optimal for the respective grinding and honing process. The grinding and pulling device can be easily clamped on a table edge. 3 -
Die Vorrichtung ist von einfachem Aufbau und ermöglicht eine einfache Handhabung. Da die Vorrichtung vor der Be¬ nutzung an einer Tischkante oder dgl. befestigt wird und nicht mit der Hand gehalten werden muß, ist die Verlet- zungsgefahr bei der Benutzung sehr gering.The device is of simple construction and enables easy handling. Since the device is attached to a table edge or the like before use and does not have to be held by hand, the risk of injury during use is very low.
Durch die gespreizte Anordnung der beiden Tragschenkel, die an ihren oberen Enden miteinander verbunden sind, er¬ hält die Vorrichtung in ihrer Benutzungsstellung eine er- hebliche Stabilität. Zugleich ist die Vorrichtung aber in einfacher Weise zusammenklappbar und kann bei nur sehr ge¬ ringem Platzbedarf aufbewahrt werden.Due to the spread arrangement of the two support legs, which are connected to one another at their upper ends, the device maintains considerable stability in its position of use. At the same time, however, the device can be folded up in a simple manner and can be stored with only a very small space requirement.
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Die Verwendung eines Schleifbandes ergibt eine ausreichen breite Schleiffläche, die über ihre gesamte Breite gleich mäßig ausgenutzt wird und in konstanter Breite zur Verfü¬ gung steht.The use of an abrasive belt results in a sufficiently wide abrasive surface which is used uniformly over its entire width and is available in a constant width.
Da das Schleifband leicht ausgewechselt werden kann, steh jeweils eine scharfe Schleiffläche zur Verfügung, deren Körnung für den jeweiligen Schleif- und Abziehvorgang op¬ timal ausgewählt werden kann. Die Erneuerung der Schleif¬ fläche durch Wechsel des Schleifbandes erfolgt schnell un verursacht nur sehr geringe Kosten.Since the grinding belt can be easily replaced, a sharp grinding surface is available in each case, the grain size of which can be optimally selected for the respective grinding and honing process. The renewal of the grinding surface by changing the grinding belt is quick and causes only very low costs.
Die flexible Abstützung des Schleifbandes durch die weich Auflage der Tragschenkel führt zu einem guten Schleif- un Abziehergebnis . Ein beim Schleifen entstehender Grat wird beim Abziehen weitgehend entfernt. Die so gebildete Schne zeigt hervorragende Schneideigenschaftn; insbesondere bew eine verbleibende, geringe Schartigkeit ein sehr gutes Schneidergebnis beim Zugschnitt. Die elastische Abstüt¬ zung des Schleifbandes bewirkt einen raschen Abtrag des Materials sowie einen gleichmäßigen Abzug der Schneide. Die Vorrichtung ist nicht nur zur Bearbeitung von Messer¬ klingen u.dgl., sondern auch von Scheren und ähnlichen Klingen besonders geeignet.The flexible support of the sanding belt through the soft support of the support legs leads to a good sanding and pulling result. A burr that arises during grinding is largely removed when removing. The cutting thus formed shows excellent cutting properties; in particular, the remaining low chastity proves a very good cutting result when pulling the train. The elastic support of the abrasive belt causes the material to be removed quickly and the cutting edge to be removed evenly. The device is particularly suitable not only for processing knife blades and the like, but also for scissors and similar blades.
Gemäß einer bevorzugten Ausführungsform der Erfindung is vorgesehen, daß die beiden Tragschenkel aus Blechprofile bestehen und mindestens an einer, vorzugsweise an beiden Längskanten einen nach außen vorspringenden Randstreifen aufweisen, dessen Höhe geringer als die Dicke der weiche Auflage mit dem darauf liegenden Schleifband ist.According to a preferred embodiment of the invention it is provided that the two support legs consist of sheet metal profiles and have at least on one, preferably on both longitudinal edges an outwardly projecting edge strip, the height of which is less than the thickness of the soft support with the abrasive belt lying thereon.
Diese Randstreifen bilden Schutzkanten, die verhindern, daß die zu schleifende Schneide am Rand des Schleifbande zu fest angedrückt wird und dadurch einschneidet. Dadurc wird eine Beschädigung des Schleifbandes auch dann weit¬ gehend ausgeschlossen, wenn Messer geschliffen werden, dere ^Schneide nahe am Heftansatz einen stark gekrümmten Verlauf hat, beispielsweise Ausbeinmesser.These edge strips form protective edges which prevent the cutting edge to be pressed against the edge of the grinding belt too tightly and thereby cut it. Dadurc is also weit¬ possibility of damaging the sanding belt continuously when knives are sharpened, more complete ^ cutting close to the stitching approach a strongly curved course has, for example boning knife.
Gemäß einer weiteren Ausgestaltung der Erfindung ist vor gesehen, daß die unteren Enden der Tragschenkel jeweils nach außen abgewinkelt sind und einen Stützfuß bilden. Vorzugsweise greifen die Klemmvorrichtungen jeweils mit einer oberen, horizontalen Stange über den auf dem Stütz fuß liegenden Abschnitt des Schleifbandes und bilden da¬ durch zugleich die Klemmung für das Schleifband, das in einfacher Weise gespannt und festgeklemmt werden kann.According to a further embodiment of the invention it is seen that the lower ends of the support legs are each angled outwards and form a support foot. The clamping devices preferably each grip an upper, horizontal rod over the section of the grinding belt lying on the support foot and thereby simultaneously form the clamping for the grinding belt, which can be tensioned and clamped in a simple manner.
Die Erfindung wird nachfolgend an Ausführungsbeispielen näher erläutert, die in der Zeichnung dargestellt sind. Es zeigt:The invention is explained in more detail below using exemplary embodiments which are illustrated in the drawing. It shows:
Fig. 1 in räumlicher Darstellungsweise eine Schleif- u Abziehvorrichtung, die an der Kante einer Tisch- platte befesti t ist. Fig. 2 in ähnlicher Darstellungsweise eine abgewandelte Ausführungsfor der Schleif- und Abziehvorrich¬ tung,1 in a spatial representation, a grinding and pulling device which is fastened to the edge of a table top. 2 in a similar representation, a modified embodiment of the grinding and stripping device,
Fig. 3 einen vergrößerten Teilschnitt längs der Linie III-III in Fig. 2 undFig. 3 is an enlarged partial section along the line III-III in Fig. 2 and
Fig. 4 einen vergrößertun Teilschnitt längs der Linie IV-IV in Fig. 2.Fig. 4 is an enlarged partial section along the line IV-IV in Fig. 2.
In den Fig. 1 und 2 ist eine Tischplatte 1 , an der die Schleif- und Abziehvorrichtung befestigt ist, jeweils mit strichpunktierten Linien angedeutet. Zwei leisten- förmige Tragschenkel 2 , die beispielsweise aus Holz¬ leisten bestehen, sind an ihrem oberen Ende durch ein Scharnier oder Gelenk 3 miteinander verbunden. An ihrer Außenseite sind die Tragschenkel 2 jeweils mit einer dünnen Weichschaumaufläge 4 versehen. Ein gemeinsames Bchleifband 5, vorzugsweise aus Schmirgelleinen, liegt an den Außenseiten der beiden Tragschenkel 2 auf "der weichen Auflage 4 an und ist am oberen Ende über das Gelenk 3 hinweg gespannt. An den unteren Enden der1 and 2, a table top 1, to which the grinding and pulling device is attached, is indicated by dash-dotted lines. Two strip-shaped support legs 2, which consist for example of wooden strips, are connected to one another at their upper end by a hinge or joint 3. On the outside, the support legs 2 are each provided with a thin soft foam covering 4. A common abrasive belt 5, preferably made of emery cloth, lies on the outside of the two support legs 2 on the soft support 4 and is stretched over the joint 3 at the upper end
Tragschenkel 2 sind die Enden des Schleifbandes 5 je¬ weils mittels einer Klemmplatte 6 festgeklemmt, die mittels einer Schraube 7 und einer Mutter 7 a, die auf der Innenseite der Tragschenkel 2 angeordnet ist, fest- klemmbar und lösbar ist.Support leg 2, the ends of the grinding belt 5 are each clamped by means of a clamping plate 6, which can be clamped and released by means of a screw 7 and a nut 7 a, which is arranged on the inside of the support leg 2.
An den unteren Enden der beiden Tragschenkel 2 ist je¬ weils eine Klemmvorrichtung 8 vorgesehen, die beim Aus¬ führungsbeispiel nach Fig. 1 eine in einer Querbohrung jedes Tragschenkels 2 beweglich eingeführte Stange 9 aufweisen, die zu einem Gewindestab 10 nach unten ab¬ gewinkelt ist. Entlang des Gewindestabes 10 ist eine Klemmbacke 11 mittels einer Mutter 12 von unten gegen die Tischplatte 1 spannbar, um den Tragschenkel 2 an - -At the lower ends of the two support legs 2 a clamping device 8 is provided, which in the exemplary embodiment according to FIG. 1 has a rod 9 which is movably inserted in a transverse bore of each support leg 2 and which is angled downward to a threaded rod 10 . Along the threaded rod 10, a clamping jaw 11 can be clamped against the table top 1 from below by means of a nut 12, around the supporting leg 2 - -
der Tischplatte 1 festzulegen. Wenn beide Tragschenkel 2 in der in Fig. 1 gezeigten Weise an der Tischplatte 1 befestigt sind, bildet die Schleif- und Abziehvorrich¬ tung ein stabil stehendes Dreieck, das die bei der Be- nutzung auftretenden Kräfte aufnimmt.to fix the table top 1. If both support legs 2 are fastened to the table top 1 in the manner shown in FIG. 1, the grinding and stripping device forms a stable triangle which absorbs the forces occurring during use.
Eine Messerklinge 13, die in der Zeichnung mit strich¬ punktierten Linien angedeutet ist, wird vorzugsweise in senkrechter Haltung an den beiden Außenseiten der mit dem Schleifband 5 versehenen Tragschenkel 2 entlang¬ bewegt. Der dabei ausgeübte Druck und die Bewegungs¬ richtung beeinflussen die gewünschte Schleif- bzw. Ab¬ ziehwirkung. Vorzugsweise wird das Messer 13 beim Schleif¬ vorgang in kreisenden Bewegungen abwechselnd auf der rech- ten und auf der linken Seite der Schleif- und Abziehvor¬ richtung geführt. Das anschließende Abziehen erfolgt bei geringem Druck im wesentlichen mit einer von oben nach unten gerichteten Bewegung entlang des Schleifbandes.A knife blade 13, which is indicated in the drawing by dash-dotted lines, is preferably moved in a vertical position along the two outer sides of the support legs 2 provided with the grinding belt 5. The pressure exerted and the direction of movement influence the desired grinding or peeling action. During the grinding process, the knife 13 is preferably guided in alternating circular movements on the right and on the left side of the grinding and pulling device. The subsequent removal takes place at low pressure essentially with a movement from top to bottom along the grinding belt.
Das in den Fig. 2 - 4 dargestellte Ausführungsbeispiel unterscheidet sich von dem vorher beschriebenen Ausfüh¬ rungsbeispiel dadurch, daß die beiden Tragschenkel 2' aus Blechprofilen bestehen, deren beide Längsränder so nach außen abgekantet sind, daß sie an den beiden Längs- kanten jedes Tragschenkels 2' einen nach außen vorsprin¬ genden Randstreifen 14 bilden, der als Schutzkante wirkt. Wie man aus Fig. 4 erkennt, ist die Höhe dieser Randstrei¬ fen 14 so gewählt, daß sie etwas geringer ist als die Dick der weichen Auflage 4', die beim Ausführungsbeispiel nach den Fig. 2 - 4 aus Filz besteht, einschließlich der Dicke des daraufliegenden Schleifbandes 5.The embodiment shown in FIGS. 2-4 differs from the previously described exemplary embodiment in that the two support legs 2 'consist of sheet metal profiles, the two longitudinal edges of which are bent outwards in such a way that they are on the two longitudinal edges of each support leg 2 'form an outwardly projecting edge strip 14 which acts as a protective edge. As can be seen from FIG. 4, the height of these edge strips 14 is selected such that it is somewhat less than the thickness of the soft support 4 ', which in the exemplary embodiment according to FIGS. 2-4 is made of felt, including the thickness of the sanding belt 5.
Die vom Randstreifen 14 gebildete Schutzkante 15 tritt daher mit der zu bearbeitenden Klinge 13 in Berührung, sobald die weiche Auflage 4' um ein gewisses Maß zusammen¬ gedrückt wurde. Dadurch wird verhindert, daß eine zu hohe Anpreßkraft ausge-übt wird, die zu einer Beschädigung des Randes des Schleifbandes 5 führen könnte.The protective edge 15 formed by the edge strip 14 therefore comes into contact with the blade 13 to be machined, as soon as the soft support 4 'has been pressed together to a certain extent. This prevents an excessive contact pressure from being exerted which could damage the edge of the grinding belt 5.
Bei der Ausführung aus Blechprofilen sind die unteren Ende der Tragschenkel 2' jeweils nach außen abgewinkelt und bilden einen Stützfuß 16, der auf der Tischplatte 1 auf¬ liegt.In the embodiment made of sheet metal profiles, the lower ends of the support legs 2 'are each angled outwards and form a support leg 16 which lies on the table top 1.
Die Klemmvorrichtungen 8* sind bei dieser Ausführungsform Schraubzwingen, deren mit Gewinde versehene Klemmschrauben 10' an ihrem oberen Ende jeweils einen Spannteller 11' tra gen, der von unten gegen die Tischplatte 1 gespannt wird.In this embodiment, the clamping devices 8 * are screw clamps, the threaded clamping screws 10 'of which at their upper end each have a clamping plate 11' which is clamped against the table top 1 from below.
Die den oberen Teil der Klemmvorrichtung 8' bildende hori¬ zontale Stange 9 greift über den auf dem Stützfuß 16 lie¬ genden Abschnitt 5a bzw. 5b des Schleifbandes 5'. Um die Klemmvorrichtungen 8' unverlierbar an den Tragschenkeln 2' zu lagern, sind beiderseits der Schleifbandabschnitte 5 a bzw. 5 b aus dem Rand des Elechorofils' Ösen 17 hochgebogen die die Stange 9' mit Spiel führen.The horizontal bar 9 forming the upper part of the clamping device 8 'extends over the section 5a or 5b of the grinding belt 5' lying on the support foot 16. In order to hold the clamping devices 8 'captively on the support legs 2', the sanding belt sections 5a and 5b are bent up from the edge of the Elechorofils ' loops 17 on both sides, which guide the rod 9' with play.
An ihren oberen Enden sind die Tragschenkel 2' in der schon beschriebenen Weise durch ein Scharnier 3 gelenkig miteinander verbunden, das an den beiden Tragschenkeln 2' befestigt sein kann oder von diesen selbst gebildet wird.At their upper ends, the support legs 2 'are articulated to one another in the manner already described by a hinge 3, which can be fastened to the two support legs 2' or is formed by the latter itself.
Zum Spannen des Schleifbandes wird zunächst das eine Band- ende 5 a am Stützfuß 16 des einen Tragschenkels 21 mittel der Klemmvorrichtung 8' festgespannt. Am anderen Stützfuß 16, dessen Klemmvorrichtung 8' noch gelöst ist, wird das Bandende 5 b, das vorzugsweise etwas weiter übersteht, von Hand straff gezogen und gehalten, während die Klemm- 8 -To tension the grinding belt, one end of the belt 5 a is first clamped to the support foot 16 of the one supporting leg 2 1 by means of the clamping device 8 '. On the other support leg 16, the clamping device 8 'of which is still loosened, the band end 5 b, which preferably protrudes somewhat further, is pulled and held by hand while the clamping 8th -
Vorrichtung 8' festgeklemmt wird. Dabei wird das Bandende 5 b zugleich gespannt und festgeklemmt.Device 8 'is clamped. The tape end 5 b is tensioned and clamped at the same time.
Ein am Ende der Stange 9' angebrachter Stift oder Splint 5 18 sichert die Klemmvorrichtung 8' gegen ein seitliches Lösen vom Tragschenkel 2' .A pin or split pin 5 18 attached to the end of the rod 9 'secures the clamping device 8' against lateral detachment from the support leg 2 '.
Anstelle des beschriebenen Aufspannens des Schleifbandes 5 kann das Schleifband 5 auch in anderer Weise an der weichen 10 Auflage 4 bzw. 4' befestigt werden, beispielsweise mittels eines Klettbandes oder mittels Klebung.Instead of the described tensioning of the sanding belt 5, the sanding belt 5 can also be attached in another way to the soft support 4 or 4 ', for example by means of a Velcro tape or by means of adhesive.
Am oberen Ende der Tragschenkel 2* verläuf das Schleif¬ band 5 zwischen den überstehenden Ecken der Randstreifen 14 15 und wird dadurch geführt und zentriert. At the upper end of the support legs 2 *, the grinding belt 5 runs between the protruding corners of the edge strips 14 15 and is thereby guided and centered.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Schleif- und Abziehvorrichtung für Messer u.dgl. mit zwei in spitzem Winkel zueinander stehenden Trag-' schenkein (2, 2'), die jeweils eine Schleif- bzw. Abziehoberfläche aufweisen, dadurch gekennzeichnet, daß die beiden leistenförmigen Tragschenkel (2, 2') an ihren oberen Enden durch ein Gelenk (3) mitein¬ ander verbunden sind und an ihrer Außenseite jeweils eine weiche Auflage (4, 4') tragen, daß ein gemein¬ sames Schleifband (5) über die Außenseite der beiden Tragschenkel (2, 2') gespannt und jeweils an deren unteren Enden lösbar befestigt ist und daß die beiden Tragschenkel (2, 2') an ihrem unteren Ende jeweils mit einer Klemmvorrichtung (8, 8') verbunden sind, die jeweils eine von unten in Richtung auf den Tragschenke (2, 2') spannbare Klemmbacke (11, 11') aufweist. 101. Grinding and peeling device for knives and the like. with two mutually at an acute angle to supporting 'limbs (2, 2'), each having a grinding or release surface, characterized in that the two strip-shaped supporting legs (2, 2 ') at their upper ends by a joint ( 3) are connected to each other and each carry a soft pad (4, 4 ') on their outside that a common abrasive belt (5) is stretched over the outside of the two support legs (2, 2') and in each case on the lower one Ends is releasably attached and that the two support legs (2, 2 ') are each connected at their lower end to a clamping device (8, 8'), each of which has a clamping jaw that can be clamped from below in the direction of the support legs (2, 2 ') (11, 11 '). 10
2. Schleif- und Abziehvorrichtung nach Anspruch 1, da¬ durch gekennzeichnet, daß am unteren Ende jedes Trag¬ schenkels (2) an dessen Außenseite eine das Ende des Schleifbandes (5) übergreifende Klemmplatte (6) ange- ordnet ist.2. Grinding and honing device according to claim 1, characterized in that at the lower end of each Trag¬ limb (2) on the outside of the end of the grinding belt (5) overlapping clamping plate (6) is arranged.
3. Schleif- und Abziehvorrichtung nach Anspruch 1, da¬ durch gekennzeichnet, daß die beiden Tragschenkel (2') aus Blechprofilen bestehen und mindestens an einer Längs- kante einen nach außen vorspringenden Randstreifen (14) aufweisen, dessen Höhe geringer als die Dicke der wei¬ chen Auflage (4, 4') mit dem darauf liegenden Schleif¬ band (5) ist.3. Grinding and honing device according to claim 1, characterized in that the two support legs (2 ') consist of sheet metal profiles and have at least on one longitudinal edge an outwardly projecting edge strip (14) whose height is less than the thickness of the white support (4, 4 ') with the abrasive belt (5) lying thereon.
4. Schleif- und Abziehvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die beiden Längskanten jedes Traσe- schenkels (21) einen nach außen vorspringenden Rand¬ streifen (14) aufweisen.4. Grinding and honing device according to claim 3, characterized in that the two longitudinal edges of each Traσe- leg (2 1 ) have an outwardly projecting Rand¬ strip (14).
5. Schleif- und Abziehvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die unteren Enden der Tragschenkel (21) jeweils nach außen abgewinkelt sind und einen Stütz¬ fuß (16) bilden.5. Grinding and honing device according to claim 3, characterized in that the lower ends of the support legs (2 1 ) are each angled outwards and form a Stütz¬ foot (16).
6. Schleif- und Abziehvorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Klemmvorrichtungen (8') jeweils mit einer oberen, horizontalen Stange (91) über den auf dem Stützfuß (16) liegenden Abschnitt (5a, 5b) des Schleifbandes (5) greifen.6. Grinding and honing device according to claim 5, characterized in that the clamping devices (8 ') each with an upper, horizontal rod (9 1 ) over the on the support foot (16) lying section (5a, 5b) of the grinding belt (5th ) to grab.
7. Schleif- und Abziehvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die horizontale Stange (9') jeder Klemmvorrichtung (0') beiderseits des Schleifbandes (5) in einer Halteöse (18) des Stützfußes (16) lose aufgenommen ist. 7. Grinding and honing device according to claim 6, characterized in that the horizontal rod (9 ') of each clamping device (0') on both sides of the grinding belt (5) in a retaining eye (18) of the support foot (16) is loosely received.
PCT/EP1985/000583 1984-11-07 1985-11-02 Grinding and sharpening device for knives and similar objects WO1986002872A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG8432545.3U 1984-11-07
DE19848432545 DE8432545U1 (en) 1984-11-07 1984-11-07 GRINDING AND PULLING DEVICE FOR KNIVES AND THE LIKE

Publications (1)

Publication Number Publication Date
WO1986002872A1 true WO1986002872A1 (en) 1986-05-22

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Application Number Title Priority Date Filing Date
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EP (1) EP0200779A1 (en)
DE (1) DE8432545U1 (en)
WO (1) WO1986002872A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116141089B (en) * 2023-04-19 2023-07-14 北大荒集团总医院(黑龙江省第二肿瘤医院、黑龙江垦区残疾人康复中心、北大荒集团妇幼保健院、齐齐哈尔医学院附属第十一医院) Scalpel grinding equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR738473A (en) * 1932-06-10 1932-12-26 Device for polishing or sanding
FR984282A (en) * 1949-04-07 1951-07-04 Apparatus for polishing knife blades
US2674072A (en) * 1951-11-21 1954-04-06 Carl H Lohmann Sharpening tool
US3871141A (en) * 1973-05-14 1975-03-18 Mario J Bonapace Knife sharpener and edge straightener
US3894362A (en) * 1974-05-28 1975-07-15 Graves Thelma L Blade sharpener
US4259815A (en) * 1979-09-06 1981-04-07 Kurt Manufacturing Company, Inc. Blade sharpener
US4471951A (en) * 1981-11-30 1984-09-18 Levine Arthur L Sharpener mounting construction

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR738473A (en) * 1932-06-10 1932-12-26 Device for polishing or sanding
FR984282A (en) * 1949-04-07 1951-07-04 Apparatus for polishing knife blades
US2674072A (en) * 1951-11-21 1954-04-06 Carl H Lohmann Sharpening tool
US3871141A (en) * 1973-05-14 1975-03-18 Mario J Bonapace Knife sharpener and edge straightener
US3894362A (en) * 1974-05-28 1975-07-15 Graves Thelma L Blade sharpener
US4259815A (en) * 1979-09-06 1981-04-07 Kurt Manufacturing Company, Inc. Blade sharpener
US4471951A (en) * 1981-11-30 1984-09-18 Levine Arthur L Sharpener mounting construction

Also Published As

Publication number Publication date
DE8432545U1 (en) 1985-01-31
EP0200779A1 (en) 1986-11-12

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