EP2759346B1 - Shredder - Google Patents

Shredder Download PDF

Info

Publication number
EP2759346B1
EP2759346B1 EP14152035.3A EP14152035A EP2759346B1 EP 2759346 B1 EP2759346 B1 EP 2759346B1 EP 14152035 A EP14152035 A EP 14152035A EP 2759346 B1 EP2759346 B1 EP 2759346B1
Authority
EP
European Patent Office
Prior art keywords
shredder
thickness sensor
receiving slot
active part
cylinder surface
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.)
Active
Application number
EP14152035.3A
Other languages
German (de)
French (fr)
Other versions
EP2759346A1 (en
Inventor
Hermann Schwelling
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2759346A1 publication Critical patent/EP2759346A1/en
Application granted granted Critical
Publication of EP2759346B1 publication Critical patent/EP2759346B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/22Feed or discharge means
    • B02C18/2225Feed means
    • B02C18/2291Feed chute arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00Control arrangements specially adapted for crushing or disintegrating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C2018/164Prevention of jamming and/or overload

Definitions

  • the invention relates to a shredder / shredder for sheet material, such as e.g. Paper and the like material or similar data carriers according to the preamble of claim 1.
  • a shredder which has a cylindrical roller which projects into the receiving slot for the material to be shredded.
  • the roller is rotatably mounted on a pivotable fork and a spring acts on the fork, so that the roller occupies a defined position in the receiving slot. If too much material to be shredded is fed to the receiving slot, the roller and thus also the fork are forced away from the slot area. During this movement, a switch is actuated, which then stops the electric motor for the cutting unit.
  • the cylindrical roller and the opposite side of the receiving slot act here as it were as a thickness sensor to To prevent overloading of the cutting unit and / or the electric motor.
  • Thickness sensors are described, which are translational or rotationally movable and protrude into the receiving slot. Again, it is again so, as in the aforementioned prior art that the gap in the receiving slot depending on the amount of zershreddernden - eg paper - changes.
  • the shredder according to the prior art has in common that the receiving slot in the region of the thickness sensor is variable in width. In one case, an additional pivoting mechanism is needed to guide a roller of the thickness sensor out of the receiving slot, while in the Another case, the slot is narrowed even further, if there is too much paper in the receiving slot. This results in large forces between the thickness sensor and the cutting unit, because the cutting unit still pulls on the paper because of its follow-up time, while it is already blocked at the thickness sensor.
  • the switching unit of the shredder contains at least one - in the sense of testing - the thickness of the supplied stack of sheet material sensing sensor (thickness sensor) and means which operates when a set limit is exceeded, a breaker , which interrupts the circuit for driving the cutting unit of the shredder, or a switching signal sends a control unit of the shredder, whereupon the control unit communicates with the drive of the shredder.
  • the subject of the invention differs in particular from the prior art in that the thickness sensor, for example, when supplying too much paper, on the one hand does not pivot out of the receiving slot, but concentrically rotates only about its longitudinal axis by a small amount, whereby a switch is actuated, which in turn forwards the corresponding signal to a controller of the shredder or the breaker actuated or selbiger.
  • the thickness sensor by the frictional forces between the supplied sheet material - such as paper - and not further drawn into the receiving slot, which can not come to tensile stresses between the thickness sensor and the cutting unit, as in known Solutions, eg after the US 2006/0219827 A1 the case is.
  • the thickness sensor pivots according to the invention for generating a switching signal or switching movement only about its longitudinal axis, fewer components for the thickness sensor are needed and you can also build the whole structure more stable overall.
  • Another advantage is simple components for the thickness sensor itself and for coupled with the thickness sensor electrical / electronic switching unit, compared to the solutions can be produced and assembled according to the prior art with less effort.
  • the invention allows the use of simple switches in the electrical / electronic circuit and / or circuit of the shredder. This becomes possible because the maximum sheet count limit of the material being fed is defined by the distance between the active and passive parts of the thickness sensor, the so-called gap, more specifically the gap thickness.
  • the thickness sensor according to the invention Although only simple switches are used without great demands on the switching accuracy, with the thickness sensor according to the invention, a high inspection accuracy can be achieved. In addition, the process reliability is improved because a flutter / swing of the already detected and pulled from the cutting material only very little or no effect on the sensor elements of the thickness sensor has.
  • FIG. 1 is of the invention Shredder / shredder shown only the assembly in which the subject of the invention is arranged, the cutting unit 1 together with housing as a section, with a view into the interior.
  • the Cutter 1 comprises a cutting roller pair 6.
  • An associated gear, an electric motor and a controller have been omitted in this illustration.
  • these components are a shredder known per se from the prior art.
  • the receiving slot 4 extends from the top of the housing 2 substantially down to the draw-in area 19 of the cutting roller pair 6.
  • the cutting rollers 6 may be formed such that they are constructed of intermeshing cylinder sections and thereby produce paper strips, or they may also be additionally provided with a textured surface, so that they further shred the paper strips in their length.
  • the comminuted material then leaves in the lower section 3 of the housing of the cutting unit 1, the cutting roller pair 6 and falls into the collecting container, also not shown.
  • a shredder So that a shredder can not be overloaded, he is equipped with a switching unit according to the invention, here with a thickness sensor 7, which is assigned primarily to the control of the shredder.
  • the novel switching unit, the thickness sensor 7 consists of two parallel and spaced-apart cylinders, which are each rotatably mounted about a longitudinal axis 8 and protrude with a portion of its peripheral surface in the receiving slot 4.
  • a gap 9 is formed between the two cylinders, which gap is substantially constant in its thickness independently of the rotational position of the cylinders.
  • This gap 9 is also an equivalent for the designed performance of the shredder, ie for the maximum possible number of sheets, which may be supplied to the cutting roller pair 6.
  • the left cylinder of the thickness sensor 7 is the active part 10, because it acts by means of a cam or lever 12 in a rotary pivoting movement 13 on a switch 14.
  • the switch 14 can be designed both as a make, but also as an opener of a circuit or an electrical / electronic control circuit.
  • the part of the thickness sensor opposite the active part 10 of the thickness sensor 7 is the passive part 11. This name was chosen because the part 11 does not pass on any information to a control or an electric motor and only the further sliding of the material to be comminuted supported.
  • its passive part 11 is also arranged rotatably pivotable.
  • the motor could immediately start again in the case of an opposite pivoting movement 13 of the thickness sensor 7. For this reason, it is advantageous if the signal of the switch 14 runs via a controller and is restarted only after removal of the thick paper bundle and reducing the bundle of paper, the cutting process via a start command.
  • the preferred second embodiment according to FIG. 2 is essentially the subject of the FIG. 1 identical, but was used in the thickness sensor 71 used second Design / configuration on the right, rotating passive cylinder 11 omitted.
  • the wall surface of the receiving slot 4 may be provided with a perpendicular to the image plane extending bead, for example, seen in cross-section a circular section 111.
  • the flat surface of the receiving slot 4 may extend.
  • a widening wedge is conceivable. Decisive for the invention is merely that the gap 9 over the entire length of the receiving slot 4 - that is perpendicular to the image plane - is constant.
  • the preferred third embodiment of the invention according to FIG. 3 again shows a small difference to the object FIG. 2 on.
  • the active part of the second type 101 of the thickness sensor 72 of the third type is no longer shown here as a complete cylinder, ie provided. Since the active part 101 exerts only a small pivoting movement 13, a complete circular cross section is not required. An angle 16 indicates that only a small peripheral region 16 of the second-type active part 101 is required to realize the full function of the third-type thickness sensor 72.
  • the cylinder surface 15 may be roughened.
  • the cylinder surface 15 may also be provided with a rubber-like layer, wherein this layer may consist of a shrunk-on tube, or else a glued-on strip.
  • this may be provided with longitudinal grooves. It is also conceivable that the cylinder surface 15 is provided with spikes.
  • the restoring force of the switch 14 and / or a restoring element acting on the active part 10 or 101 are designed to be adjustable.
  • This restoring element, or the restoring moment resulting therefrom, can be arranged concentrically to the longitudinal axis 8 of the active part 10 or of the active part of the second type 101.
  • a not shown, but within the scope of the claimed invention lying preferred embodiment may consist in that in the receiving slot 4 below the thickness sensor 7 and before the catchment area 19, a further sensor is arranged.
  • This sensor is intended for switching on the cutting unit. In the presence of supplied material (paper) in this area, the sensor generates a switch-on signal for the cutting unit. If the material passes the sensor and there is no further material following, another signal is generated to shut down the cutting unit.
  • This additional sensor is circuit-coupled with the thickness sensor in such a way that a signal from the thickness sensor, which corresponds to excessively fed paper, blocks the further sensor, so that switching on the cutting mechanism is not possible in such a circumstance.
  • a preferred further embodiment not shown, but within the scope of the claimed invention, may be that the passive element of the thickness sensor is eccentrically mounted, thus, the gap, i. its thickness, to the different limits for paper quantities / stack thicknesses of different security levels and cutting widths of Shredder / shredder can be set. This can also increase the degree of repetition in the shredder's production process and thus reduce the production costs.
  • the switching unit according to the invention is arranged in a receiving slot of a cutting mechanism of a shredder / Shredders, which is provided for the supply of data carriers in the form of DVDs, CD-ROMs, floppy disks or the like sheet-like data carriers.

Description

I. AnwendungsgebietI. Field of application

Die Erfindung betrifft einen Shredder / Aktenvernichter für blattförmiges Material, wie z.B. Papier und dergleichen Material oder ähnlichen Datenträgern gemäß dem Oberbegriff des Anspruches 1.The invention relates to a shredder / shredder for sheet material, such as e.g. Paper and the like material or similar data carriers according to the preamble of claim 1.

II. Technischer HintergrundII. Technical background

Aus der Schrift DE 10 2007 020 222 A1 ist ein Shredder bekannt, der eine zylindrische Walze aufweist, die in den Aufnahmeschlitz für das zu zerkleinernde Gut hineinragt. Die Walze ist an einer schwenkbaren Gabel drehbar gelagert und eine Feder wirkt derart auf die Gabel ein, sodass die Walze eine definierte Position in dem Aufnahmeschlitz einnimmt. Wird nun zu viel zu zerkleinerndes Gut dem Aufnahmeschlitz zugeführt, so werden die Walze und damit auch die Gabel von dem Schlitzbereich weggedrängt. Bei dieser Bewegung wird ein Schalter betätigt, der dann den Elektromotor für das Schneidwerk stoppt. Die zylindrische Walze und die gegenüberliegende Seite des Aufnahmeschlitzes wirken hier gewissermaßen als Dicken-Sensor, um eine Überlastung des Schneidwerkes und/oder des Elektromotors zu verhindern.From the Scriptures DE 10 2007 020 222 A1 a shredder is known, which has a cylindrical roller which projects into the receiving slot for the material to be shredded. The roller is rotatably mounted on a pivotable fork and a spring acts on the fork, so that the roller occupies a defined position in the receiving slot. If too much material to be shredded is fed to the receiving slot, the roller and thus also the fork are forced away from the slot area. During this movement, a switch is actuated, which then stops the electric motor for the cutting unit. The cylindrical roller and the opposite side of the receiving slot act here as it were as a thickness sensor to To prevent overloading of the cutting unit and / or the electric motor.

In der Schrift US 2006/0219827 A1 werden Dicken-Sensoren beschrieben, die translatorisch oder auch rotatorisch bewegbar sind und in den Aufnahmeschlitz hineinragen. Auch hier ist es wiederum so, wie beim vorgenannten Stand der Technik, dass sich der Spalt in dem Aufnahmeschlitz in Abhängigkeit von der Menge des zu zershreddernden Gutes - z.B. Papier - ändert.In Scripture US 2006/0219827 A1 Thickness sensors are described, which are translational or rotationally movable and protrude into the receiving slot. Again, it is again so, as in the aforementioned prior art that the gap in the receiving slot depending on the amount of zershreddernden - eg paper - changes.

Auch in der Schrift US 2010/0320299 A1 wirkt ein Dicken-Sensor, der zylindrisch ausgebildet ist und mit einem Teil seiner Mantelfläche in den Aufnahmeschlitz eines Shredders hineinragt. Dieser Zylinder ist exzentrisch gelagert und wird mittels einer Zugfeder in seiner Ruhelage gehalten. Wird dort nun zu viel Papier in den Aufnahmeschlitz eingeführt, so kommt es zur Reibung zwischen dem Papier und dem Zylinder, wodurch dieser in den Aufnahmeschlitz hinein schwenkt (gewissermaßen einen Keil bildet) und dadurch die Papierzufuhr blockiert.Also in Scripture US 2010/0320299 A1 acts a thickness sensor, which is cylindrical and protrudes with a part of its lateral surface in the receiving slot of a shredder. This cylinder is mounted eccentrically and is held by a tension spring in its rest position. If too much paper is introduced into the receiving slot there, friction between the paper and the cylinder occurs, causing it to pivot into the receiving slot (effectively forming a wedge), thereby blocking the paper feed.

Den Aktenvernichtern nach dem Stand der Technik ist gemeinsam, dass der Aufnahmeschlitz im Bereich des Dicken-Sensors in seiner Breite veränderlich ist. In dem einen Fall benötigt man einen zusätzlichen Schwenkmechanismus, um eine Walze des Dicken-Sensors aus dem Aufnahmeschlitz herauszuführen, während in dem
anderen Fall der Schlitz noch weiter verengt wird, wenn zu viel Papier in dem Aufnahmeschlitz steckt. Hierbei kommt es zu großen Kräften zwischen dem Dicken-Sensor und dem Schneidwerk, weil das Schneidwerk wegen seiner Nachlaufzeit noch weiter an dem Papier zerrt, während es am Dicken-Sensor bereits blockiert wird.
The shredder according to the prior art has in common that the receiving slot in the region of the thickness sensor is variable in width. In one case, an additional pivoting mechanism is needed to guide a roller of the thickness sensor out of the receiving slot, while in the
Another case, the slot is narrowed even further, if there is too much paper in the receiving slot. This results in large forces between the thickness sensor and the cutting unit, because the cutting unit still pulls on the paper because of its follow-up time, while it is already blocked at the thickness sensor.

III. Darstellung der ErfindungIII. Presentation of the invention Technische AufgabeTechnical task

Ausgehend von Vorgenanntem ist es daher Aufgabe der Erfindung einen Shredder / Aktenvernichter mit einer Schalteinheit bzw. eine Schalteinheit für einen Shredder / Aktenvernichter zu finden, der die Nachteile aus dem genannten Stand der Technik zumindest reduziert.Based on the above, it is therefore an object of the invention to find a shredder / shredder with a switching unit or a switching unit for a shredder / shredder, which at least reduces the disadvantages of said prior art.

Lösung der AufgabeSolution of the task

Die Aufgabe wird durch einen Shredder mit den Merkmalen des Patentanspruches 1 gelöst. Die nachgeordneten Patentansprüche offenbaren bevorzugte Ausführungsvarianten der Erfindung.Die Schalteinheit des erfindungsgemäßen Shredders enthält zumindest einen - im Sinne von Prüfen - die Dicke des zugeführten Stapels von blattförmigen Material fühlenden Sensor (Dicken-Sensor) sowie Mittel, welches bei überschreiten eines eingestellten Grenzwertes einen Unterbrecher betätigt, welcher den Stromkreis für den Antrieb des Schneidwerkes des Shredders unterbricht, oder ein Schaltsignal an eine Steuereinheit des Shredders sendet, worauf die Steuereinheit mit dem Antrieb des Shredders kommuniziert.The object is achieved by a shredder with the features of claim 1. The subordinate claims disclose preferred embodiments of the invention. The switching unit of the shredder according to the invention contains at least one - in the sense of testing - the thickness of the supplied stack of sheet material sensing sensor (thickness sensor) and means which operates when a set limit is exceeded, a breaker , which interrupts the circuit for driving the cutting unit of the shredder, or a switching signal sends a control unit of the shredder, whereupon the control unit communicates with the drive of the shredder.

Der Gegenstand der Erfindung unterscheidet sich insbesondere vom Stand der Technik dadurch, dass der Dicken-Sensors, beispielsweise bei der Zuführung von zu viel Papier, zum einen nicht aus dem Aufnahmeschlitz heraus schwenkt, sondern sich lediglich um seine Längsachse um einen kleinen Betrag konzentrisch dreht, wodurch ein Schalter betätigt wird, der wiederum das entsprechende Signal zu einer Steuerung des Shredders weiterleitet oder den Unterbrecher betätigt oder selbiger ist.
Auch wird gemäß der Erfindung der Dicken-Sensor durch die Reibungskräfte zwischen dem zugeführten blattförmigen Material - beispielsweise Papier - und ihm nicht weiter in den Aufnahmeschlitz hineingezogen, wodurch es nicht zu Zugspannungen zwischen dem Dicken-Sensor und dem Schneidwerk kommen kann, wie es bei bekannten Lösungen, z.B. nach der US 2006/0219827 A1 der Fall ist.
The subject of the invention differs in particular from the prior art in that the thickness sensor, for example, when supplying too much paper, on the one hand does not pivot out of the receiving slot, but concentrically rotates only about its longitudinal axis by a small amount, whereby a switch is actuated, which in turn forwards the corresponding signal to a controller of the shredder or the breaker actuated or selbiger.
Also, according to the invention, the thickness sensor by the frictional forces between the supplied sheet material - such as paper - and not further drawn into the receiving slot, which can not come to tensile stresses between the thickness sensor and the cutting unit, as in known Solutions, eg after the US 2006/0219827 A1 the case is.

Weil der Dicken-Sensor nach der Erfindung zur Erzeugung eines Schaltsignales bzw. Schaltbewegung lediglich um seine Längsachse schwenkt, werden weniger Bauteile für den Dicken-Sensor benötigt und man kann zudem die ganze Konstruktion insgesamt stabiler bauen. Ein weiterer Vorteil sind einfache Bauteile für den Dicken-Sensor an sich und für die mit dem Dicken-Sensor gekoppelte elektrische/elektronische Schalteinheit, die gegenüber den Lösungen nach dem Stand der Technik mit geringerem Aufwand herstellbar und montierbar sind.
Insbesondere erlaubt die Erfindung die Verwendung einfacher Schalter im elektrischen/elektronischen Schaltkreis und/oder Stromkreis des Shredders. Dies wird möglich, da der Grenzwert für die maximale Blattzahl des zugeführten Materials durch den Abstand zwischen dem aktiven und dem passiven Teil des Dicken-Sensors, dem sogenannten Spalt, genauer gesagt, der Spaltdicke, definiert wird. Obwohl lediglich einfache Schalter ohne große Anforderungen an deren Schaltgenauigkeit verwendet werden, ist mit dem Dicken-Sensor nach der Erfindung eine hohe Prüfgenauigkeit erreichbar. Zudem wird auch die Prozesssicherheit verbessert, da ein Flattern / Schwingen des bereits vom Schneidwerk erfassten und gezogenen Materials nur sehr geringe bzw. keine Auswirkungen mehr auf die Sensorelemente des Dicken-Sensors hat.
Because the thickness sensor pivots according to the invention for generating a switching signal or switching movement only about its longitudinal axis, fewer components for the thickness sensor are needed and you can also build the whole structure more stable overall. Another advantage is simple components for the thickness sensor itself and for coupled with the thickness sensor electrical / electronic switching unit, compared to the solutions can be produced and assembled according to the prior art with less effort.
In particular, the invention allows the use of simple switches in the electrical / electronic circuit and / or circuit of the shredder. This becomes possible because the maximum sheet count limit of the material being fed is defined by the distance between the active and passive parts of the thickness sensor, the so-called gap, more specifically the gap thickness. Although only simple switches are used without great demands on the switching accuracy, with the thickness sensor according to the invention, a high inspection accuracy can be achieved. In addition, the process reliability is improved because a flutter / swing of the already detected and pulled from the cutting material only very little or no effect on the sensor elements of the thickness sensor has.

Bevorzugte Ausführungsvarianten der Erfindung sind die Gegenstände mit den Merkmalen von wenigstens einem der Patentansprüche 2 bis 13.Preferred embodiments of the invention are the objects having the features of at least one of the claims 2 to 13.

Ausführungsbeispieleembodiments

Die Erfindung wird anhand von schematisch in Zeichnungen gezeigten, bevorzugten, die Erfindung jedoch nicht einschränkenden, Ausführungsbeispielen näher und in Details erläutert. Es zeigen

Fig. 1
eine erste Ausgestaltung des erfindungsgemäßen Shredders;
Fig. 2
eine zweite Ausgestaltung des erfindungsgemäßen Shredders;
Fig. 3
eine dritte Ausgestaltung des erfindungsgemäßen Shredders.
The invention will be explained in more detail and in detail with reference to exemplary embodiments shown schematically in drawings, but not limiting the invention. Show it
Fig. 1
a first embodiment of the shredder according to the invention;
Fig. 2
a second embodiment of the shredder according to the invention;
Fig. 3
a third embodiment of the shredder according to the invention.

Den nachfolgenden Ausführungen soll vorausgestellt werden, dass Begriffe wie "oben", "unten", "links" und "rechts" sich nur auf die jeweilige Darstellung in den Figuren beziehen und dass die tatsächlichen Anordnungen von diesen Begrifflichkeiten abweichen können. Auch können die Dimensionierungen der realen Bauteile von den Dimensionierungen in den Figuren abweichen. Weiterhin wird hervorgehoben, dass gleiche Bauteile in den verschiedenen Figuren immer mit den gleichen Bezugszeichen versehen sind; sie haben auch jeweils die gleiche Bedeutung, auch wenn sie in der Beschreibung der Ausführungsvarianten nicht zu jeder Figur ausdrücklich genannt werden.It should be assumed in the following that terms such as "top", "bottom", "left" and "right" refer only to the respective representation in the figures and that the actual arrangements may deviate from these terms. Also, the dimensions of the real components may differ from the dimensions in the figures. Furthermore, it is emphasized that the same components in the various figures are always provided with the same reference numerals; they also each have the same meaning, even if they are not explicitly mentioned in the description of the embodiments for each figure.

In der Figur 1 ist von dem erfindungsgemäßen
Shredder / Aktenvernichter nur die Baugruppe gezeigt, in welcher der Gegenstand der Erfindung angeordnet ist, das Schneidwerk 1 samt Gehäuse als Ausschnitt, mit Blick in den Innenraum. Das Schneidwerk 1 umfasst ein Schneidwalzenpaar 6. Ein dazugehörendes Getriebe, ein Elektromotor und eine Steuerung sind in dieser Darstellung weggelassen worden. Diese Bauteile eine Shredders sind aber an sich aus dem Stand der Technik bekannt.
Von einer Oberseite des Gehäuses 2 des Schneidwerks 1 wird das zu zerkleinernde Gut - beispielsweise mehrere Lagen blattförmigen Papiers - über einen Aufnahmeschlitz 4 dem Schneidwalzenpaar 6 zugeführt. Der Aufnahmeschlitz 4 reicht von der Oberseite des Gehäuses 2 im Wesentlichen bis hinunter zu dem Einzugsbereich 19 des Schneidwalzenpaares 6.
In the FIG. 1 is of the invention
Shredder / shredder shown only the assembly in which the subject of the invention is arranged, the cutting unit 1 together with housing as a section, with a view into the interior. The Cutter 1 comprises a cutting roller pair 6. An associated gear, an electric motor and a controller have been omitted in this illustration. However, these components are a shredder known per se from the prior art.
From an upper side of the housing 2 of the cutting unit 1, the material to be comminuted - for example, several layers of sheet-shaped paper - fed via a receiving slot 4 the cutting roller pair 6. The receiving slot 4 extends from the top of the housing 2 substantially down to the draw-in area 19 of the cutting roller pair 6.

Die Schneidwalzen 6 können derart ausgebildet sein, dass sie aus miteinander kämmenden Zylinderabschnitten aufgebaut sind und dadurch Papierstreifen erzeugen, oder sie können auch noch zusätzlich mit einer strukturierten Oberfläche versehen sein, sodass sie die Papierstreifen in ihrer Länge weiter zerkleinern.
Das zerkleinerte Gut verlässt dann im unteren Abschnitt 3 des Gehäuses des Schneidwerks 1 das Schneidwalzenpaar 6 und fällt in den ebenfalls nicht dargestellten Auffangbehälter.
The cutting rollers 6 may be formed such that they are constructed of intermeshing cylinder sections and thereby produce paper strips, or they may also be additionally provided with a textured surface, so that they further shred the paper strips in their length.
The comminuted material then leaves in the lower section 3 of the housing of the cutting unit 1, the cutting roller pair 6 and falls into the collecting container, also not shown.

Damit ein Shredder nicht überlastet werden kann, ist er mit einer erfindungsgemäßen Schalteinheit ausgestattet, hier mit einem Dicken-Sensor 7, die vornehmlich der Steuerung des Shredders zugeordnet ist.So that a shredder can not be overloaded, he is equipped with a switching unit according to the invention, here with a thickness sensor 7, which is assigned primarily to the control of the shredder.

In der in Figur 1 gezeigten ersten Ausführungsvariante besteht die neuartige Schalteinheit, der Dicken-Sensor 7 aus zwei parallel und mit Abstand zueinander angeordneten Zylindern, die jeweils um eine Längsachse 8 drehbar gelagert sind und mit einem Abschnitt ihrer Umfangsfläche in den Aufnahmeschlitz 4 hineinragen.
Zwischen den beiden Zylindern bildet sich dadurch ein Spalt 9, der unabhängig von der Drehposition der Zylinder in seiner Dicke im Wesentlichen konstant ist. Dieser Spalt 9 ist zudem ein Äquivalent für die konzipierte Leistung des Shredders, d.h. für die maximal mögliche Blattzahl, welche dem Schneidwalzenpaar 6 zugeführt werden darf.
In the in FIG. 1 the first embodiment shown, the novel switching unit, the thickness sensor 7 consists of two parallel and spaced-apart cylinders, which are each rotatably mounted about a longitudinal axis 8 and protrude with a portion of its peripheral surface in the receiving slot 4.
As a result, a gap 9 is formed between the two cylinders, which gap is substantially constant in its thickness independently of the rotational position of the cylinders. This gap 9 is also an equivalent for the designed performance of the shredder, ie for the maximum possible number of sheets, which may be supplied to the cutting roller pair 6.

Der linke Zylinder des Dicken-Sensors 7 ist der aktive Teil 10, weil er mittels eines Nocken oder Hebels 12 bei einer rotatorischen Schwenkbewegung 13 auf einen Schalter 14 einwirkt. Der Schalter 14 kann sowohl als Schließer, aber auch als Öffner eines Stromkreises oder eines elektrisch / elektronischen Steuerkreises ausgestaltet sein.
Der dem aktiven Teil 10 des Dicken-Sensors 7 gegenüberliegende Teil des Dicken-Sensors ist der passive Teil 11. Dieser Name wurde deshalb gewählt, weil das Teil 11 keine Information an eine Steuerung oder einen Elektromotor weiterleitet und lediglich das weiter gleiten des zu zerkleinernden Gutes unterstützt. Bei dem Dicken-Sensor 7 erster Bauart ist sein passives Teil 11 ebenfalls rotatorisch schwenkbeweglich angeordnet.
The left cylinder of the thickness sensor 7 is the active part 10, because it acts by means of a cam or lever 12 in a rotary pivoting movement 13 on a switch 14. The switch 14 can be designed both as a make, but also as an opener of a circuit or an electrical / electronic control circuit.
The part of the thickness sensor opposite the active part 10 of the thickness sensor 7 is the passive part 11. This name was chosen because the part 11 does not pass on any information to a control or an electric motor and only the further sliding of the material to be comminuted supported. In the thickness sensor 7 first type its passive part 11 is also arranged rotatably pivotable.

Wird nun beispielsweise zu viel Papier, also eine größere Anzahl von Blättern Papier als die in der Bedienungsanleitung des Shredders vorgegebene maximale Blattzahl, über den Aufnahmeschlitz 4 am Dicken-Sensor 7 vorbeigeführt, so kommt es zu Reibungskräften zwischen dem Papier und dem aktiven Teil 10, also einem Abschnitt von dessen Umfangsfläche, beziehungsweise dem passiven Teil 11, also einem Abschnitt von dessen Umfangsfläche, und die Zylinder beginnen sich zu drehen. Der aktive Teil 10 des Dicken-Sensors 7 betätigt dann den Schalter 14. Hat der Schalter 14- entweder direkt oder auch indirekt über eine Steuerung - den Antriebsmotor des Schneidwerkes 1 außer Betrieb gesetzt, so kann das zu zerkleinernde Gut (beispielsweise Papier) aus dem Aufnahmeschlitz 4 herausgezogen werden.If, for example, too much paper, that is to say a larger number of sheets of paper than the maximum number of sheets specified in the operating instructions of the shredder, is passed over the receiving slot 4 on the thickness sensor 7, frictional forces occur between the paper and the active part 10, ie, a portion of its peripheral surface, or the passive part 11, that is, a portion of its peripheral surface, and the cylinders begin to rotate. The active part 10 of the thickness sensor 7 then actuates the switch 14. Has the switch 14- either directly or indirectly via a controller - the drive motor of the cutting 1 set out of operation, so can be shredded Good (for example, paper) from the Pick-up slot 4 are pulled out.

Wird das Signal des Schalters 14 nicht über eine Steuerung geleitet, so könnte bei einer gegenläufigen Schwenkbewegung 13 des Dicken-Sensors 7 der Motor sofort wieder anlaufen. Aus diesem Grunde ist es vorteilhaft, wenn das Signal des Schalters 14 über eine Steuerung läuft und erst nach Entnehmen des zu dicken Papierbündels und Reduzieren des Papierbündels der Schneidvorgang über einen Startbefehl erneut gestartet wird.If the signal of the switch 14 is not routed via a controller, the motor could immediately start again in the case of an opposite pivoting movement 13 of the thickness sensor 7. For this reason, it is advantageous if the signal of the switch 14 runs via a controller and is restarted only after removal of the thick paper bundle and reducing the bundle of paper, the cutting process via a start command.

Das bevorzugte zweite Ausführungsbeispiel nach Figur 2 ist im Wesentlichen mit dem Gegenstand nach der Figur 1 identisch, jedoch wurde bei dem hier eingesetzten Dicken-Sensor 71 zweiter Bauart/Ausgestaltung auf den rechten, rotierenden passiven Zylinder 11 verzichtet. Anstelle dieses Zylinders 11 kann die Wandfläche des Aufnahmeschlitzes 4 mit einer senkrecht zur Bildebene sich erstreckenden Wulst versehen sein, z.B im Querschnitt gesehen ein Kreisabschnitt 111. Anstelle dieser Wulst 111 kann sich aber auch die ebene Fläche des Aufnahmeschlitzes 4 erstrecken. Auch ein sich nach unten erweiternder Keil ist denkbar. Entscheidend für die Erfindung ist lediglich, dass der Spalt 9 über die gesamte Länge des Aufnahmeschlitzes 4 - also senkrecht zur Bildebene - konstant ist.The preferred second embodiment according to FIG. 2 is essentially the subject of the FIG. 1 identical, but was used in the thickness sensor 71 used second Design / configuration on the right, rotating passive cylinder 11 omitted. Instead of this cylinder 11, the wall surface of the receiving slot 4 may be provided with a perpendicular to the image plane extending bead, for example, seen in cross-section a circular section 111. Instead of this bead 111 but also the flat surface of the receiving slot 4 may extend. Also, a widening wedge is conceivable. Decisive for the invention is merely that the gap 9 over the entire length of the receiving slot 4 - that is perpendicular to the image plane - is constant.

Die bevorzugte dritte Ausführungsvariante der Erfindung nach Figur 3 weist wiederum einen kleinen Unterschied zu dem Gegenstand nach Figur 2 auf. Der aktive Teil zweiter Bauart 101 des Dicken-Sensors 72 dritter Bauart ist hier nicht mehr als vollständiger Zylinder dargestellt, also vorgesehen. Da der aktive Teil 101 nur eine kleine Schwenkbewegung 13 ausübt, ist ein vollständiger Kreisquerschnitt nicht erforderlich. Ein Winkel 16 zeigt an, dass nur ein kleiner Umfangsbereich 16 des aktiven Teils zweiter Bauart 101 erforderlich ist, um die vollständige Funktion des Dicken-Sensors 72 dritter Bauart zu realisieren.The preferred third embodiment of the invention according to FIG. 3 again shows a small difference to the object FIG. 2 on. The active part of the second type 101 of the thickness sensor 72 of the third type is no longer shown here as a complete cylinder, ie provided. Since the active part 101 exerts only a small pivoting movement 13, a complete circular cross section is not required. An angle 16 indicates that only a small peripheral region 16 of the second-type active part 101 is required to realize the full function of the third-type thickness sensor 72.

Es sind nach der Erfindung aber auch Maßnahmen denkbar, die die Reibung zwischen dem aktiven Teil 10 oder der aktive-Teil zweiter Bauart 101 und dem zu shreddernden Gut (beispielsweise Papier) erhöhen. So kann die Zylinderoberfläche 15 beispielsweise aufgeraut sein. In einer weiteren Variante kann die Zylinderoberfläche 15 auch mit einer gummiartigen Schicht versehen sein, wobei diese Schicht aus einem aufgeschrumpften Schlauch, oder auch einem aufgeklebten Streifen bestehen kann. In einer weiteren Ausgestaltung der Zylinderoberfläche 15 kann diese mit Längsrillen versehen sein. Auch ist denkbar, dass die Zylinderoberfläche 15 mit Spikes versehen ist.However, according to the invention, measures are also conceivable which increase the friction between the active part 10 or the active part of the second type 101 and the material to be shredded (for example paper). For example, the cylinder surface 15 may be roughened. In a further variant, the cylinder surface 15 may also be provided with a rubber-like layer, wherein this layer may consist of a shrunk-on tube, or else a glued-on strip. In a further embodiment of the cylinder surface 15, this may be provided with longitudinal grooves. It is also conceivable that the cylinder surface 15 is provided with spikes.

Damit nach Deaktivierung des Shredders der aktive Teil 10 bzw. der aktive Teil zweiter Bauart 101 des Dicken-Sensors 7, 71 bzw. 72 wieder in der richtigen Ausgangslage ist, kann dieser gemäß der Erfindung durch eine Rückstellkraft des Schalters 14 in Position gebracht werden.Thus, after deactivation of the shredder of the active part 10 and the active part of the second type 101 of the thickness sensor 7, 71 and 72 is again in the correct starting position, this can be brought according to the invention by a restoring force of the switch 14 in position.

In einer weiteren Ausgestaltung der Erfindung ist die Rückstellkraft des Schalters 14 und/oder ein auf den aktiven Teil 10 bzw. 101 einwirkendes Rückstellelement einstellbar ausgebildet. Dieses Rückstellelement, beziehungsweise das daraus resultierende Rückstellmoment kann konzentrisch zur Längsachse 8 des aktiven Teils 10 bzw. des aktiven Teils zweiter Bauart 101 angeordnet sein.In a further embodiment of the invention, the restoring force of the switch 14 and / or a restoring element acting on the active part 10 or 101 are designed to be adjustable. This restoring element, or the restoring moment resulting therefrom, can be arranged concentrically to the longitudinal axis 8 of the active part 10 or of the active part of the second type 101.

Weiterhin können einzelne, in Verbindung mit den Figuren beschriebene Merkmale bzw. Funktionsweisen für sich allein genommen eine selbständige Erfindung darstellen. Der Anmelder behält sich also vor, noch weiter bisher nur in der Beschreibung, insbesondere in Verbindung mit den Figuren offenbarte Merkmale von erfindungswesentlicher Bedeutung zu beanspruchen. Die mit der Anmeldung eingereichten Patentansprüche sind somit lediglich Formulierungsvorschläge ohne Präjudiz für die Erzielung weitergehenden Patentschutzes.
Eine nicht gezeigte, jedoch im Rahmen der beanspruchten Erfindung liegende bevorzugte Ausführungsvariante kann darin bestehen, dass im Aufnahmeschlitz 4 unterhalb des Dicken-Sensors 7 und vor dem Einzugsbereich 19 ein weiterer Sensor angeordnet ist. Dieser Sensor ist für das Einschalten des Schneidwerkes vorgesehen. Bei Anwesenheit von zugeführtem Material (Papier) in diesem Bereich erzeugt der Sensor ein Einschaltsignal für das Schneidwerk. Wenn das Material den Sensor passiert und es folgt kein weiteres Material nach, wird ein weiteres Signal für die Abschaltung der Schneidwerkes erzeugt. Dieser weitere Sensor ist mit dem Dicken-Sensor schaltungstechnisch derart gekoppelt, dass ein Signal vom Dicken-Sensor, welches zuviel zugeführtem Papier entspricht, den weiteren Sensor blockiert, so dass bei einem solchen Umstand ein Einschalten des Schneidwerkes nicht möglich ist.
Furthermore, individual features or modes of operation described in conjunction with the figures can in themselves constitute an independent invention. The applicant therefore reserves the right to claim further features of significance essential to the invention which have hitherto been disclosed only in the description, in particular in conjunction with the figures. The claims filed with the application are thus merely formulation suggestions without prejudice to achieve further patent protection.
A not shown, but within the scope of the claimed invention lying preferred embodiment may consist in that in the receiving slot 4 below the thickness sensor 7 and before the catchment area 19, a further sensor is arranged. This sensor is intended for switching on the cutting unit. In the presence of supplied material (paper) in this area, the sensor generates a switch-on signal for the cutting unit. If the material passes the sensor and there is no further material following, another signal is generated to shut down the cutting unit. This additional sensor is circuit-coupled with the thickness sensor in such a way that a signal from the thickness sensor, which corresponds to excessively fed paper, blocks the further sensor, so that switching on the cutting mechanism is not possible in such a circumstance.

Eine nicht gezeigte, jedoch im Rahmen der beanspruchten Erfindung liegende bevorzugte weitere Ausführungsvariante kann darin bestehen, dass das passive Element des Dicken-Sensors exzentrisch gelagert ist, somit kann auf einfache Weise der Spalt, d.h. seine Dicke, auf die unterschiedlichen Grenzwerte für Papiermengen / Stapeldicken der verschiedenen Sicherheitsstufen und Schnittbreiten von Shredder / Aktenvernichter eingestellt werden. Hierdurch kann auch der Wiederholteilgrad im Fertigungsprozess der Shredder erhöht und somit die Fertigungskosten gesenkt werden.A preferred further embodiment not shown, but within the scope of the claimed invention, may be that the passive element of the thickness sensor is eccentrically mounted, thus, the gap, i. its thickness, to the different limits for paper quantities / stack thicknesses of different security levels and cutting widths of Shredder / shredder can be set. This can also increase the degree of repetition in the shredder's production process and thus reduce the production costs.

Eine nicht gezeigte Ausführungsvariante der Erfindung ist, dass die erfindungsgemäße Schalteinheit in einem Aufnahmeschlitz eines Schneidwerkes eines Aktenvernichters / Shredders angeordnet ist, welcher für die Zufuhr von Datenträgern in Form von DVDs, CD-ROMs, Disketten oder dergleichen flächenförmigen Datenträgern vorgesehen ist.An embodiment not shown of the invention is that the switching unit according to the invention is arranged in a receiving slot of a cutting mechanism of a shredder / Shredders, which is provided for the supply of data carriers in the form of DVDs, CD-ROMs, floppy disks or the like sheet-like data carriers.

Bezugsziffernverzeichnis:References directory:

11
Schneidwerkcutting
22
Gehäusecasing
2a2a
oberer Abschnitt (von Position 2)upper section (from position 2)
33
unterer Abschnitt (von Position 2)lower section (from position 2)
44
Aufnahmeschlitzreceiving slot
55
Austrittsöffnung (an bzw. von Pos. 6)Outlet opening (to or from pos. 6)
66
SchneidwalzenpaarCutting roller pair
77
Dicken-Sensor (erster Bauart/Ausgestaltung)
71 Dicken-Sensor (zweiter Bauart/Ausgestaltung)
72 Dicken-Sensor (dritter Bauart/Ausgestaltung)
Thickness sensor (first type / design)
71 Thickness sensor (second design / refinement)
72 thickness sensor (third type / design)
88th
Längsachselongitudinal axis
99
Spalt (Spaltdicke)Gap (gap thickness)
1010
aktiver Teil des Dicken-Sensors
(schwenkbeweglich, rotatorisch)
active part of the thickness sensor
(pivoting, rotatory)
101101
aktiver Teil zweiter Bauart des Dicken-Sensors (schwenkbeweglich, rotatorisch)active part of the second type of thickness sensor (pivoting, rotary)
1111
passiver Teil des Dicken-Sensors
(schwenkbeweglich, rotatorisch)
passive part of the thickness sensor
(pivoting, rotatory)
111111
passiver Teil des Dicken-Sensors (Wulst; (Kreisabschnitt feststehend; für Pos. 71)Passive part of the thickness sensor (bead; (circle section fixed, for pos. 71)
1212
Nocken oder HebelCam or lever
1313
Schwenkbewegung des Dicken-Sensors (von Pos. 10)Pivoting movement of the thickness sensor (from pos. 10)
1414
Schaltercounter
1515
Zylinderflächecylindrical surface
1616
Umfangsbereichperipheral region
1717
Drehrichtung beim SchneidenDirection of rotation when cutting
1818
Schalterbewegungswitch movement
1919
Einzugsbereich (Eingangsbereich von Position 6)Catchment area (entrance area from position 6)

Claims (12)

  1. Shredder having a cutting unit (1) mounted at the top and a collecting container disposed underneath, substantially comprising the following features:
    - the cutting unit (1) has a receiving slot (4) for the material to be shredded in the top section (2a) of the housing (2);
    - the cutting unit (1) has an outlet opening (5) for the shredded material on a bottom face of its bottom section (3) of its housing (2);
    - a cutting roller pair (6) driven by an electric motor is disposed between the receiving slot (4) and the outlet opening (5);
    - a thickness sensor (7) for the material to be shredded is disposed between the top face of the housing (2) of the cutting unit (1) and the intake region (19) of the cutting roller pair (6) ;
    - the thickness sensor (7) extends into the receiving slot (4) and
    - is mounted so as to be pivotable about a stationary longitudinal axis (8) - which extends parallel with the receiving slot (4);
    characterised in that
    a gap (9) - which is formed by an active part (10; 101) and a passive part (11; 111) of the thickness sensor (7; 71; 72) - remains substantially constant in the event of a possible pivoting movement (13) of the active part (10; 101) and/or the passive part (11).
  2. Shredder as claimed in claim 1,
    characterised in that
    at least the active part (10; 101) of the thickness sensor (7) is formed by a cylinder surface (15), at least in the circumferential section which extends into the receiving slot (4).
  3. Shredder as claimed in claim 1 or 2,
    characterised in that
    the passive part (111) of the thickness sensor (71; 72) is formed by a rigid, non-rotating face.
  4. Shredder as claimed in claim 1 or 2,
    characterised in that
    the passive part (11; 111) of the thickness sensor (7; 71) is formed by a cylinder surface (15), at least in the circumferential section which extends into the receiving slot (4).
  5. Shredder as claimed in at least one of claims 1 to 4, characterised in that
    the active part (10; 101) of the thickness sensor (7; 71; 72) has a cam or lever (12) which actuates a switch (14) during the pivoting movement (13) of the thickness sensor (7; 71; 72), as a result of which the cutting unit (1) is electrically deactivated - at least indirectly.
  6. Shredder as claimed in at least one of claims 1 to 5, characterised in that
    at least the cylinder surface (15) of the thickness sensor (7; 71; 72) facing the receiving slot (4) is provided with a surface which increases the coefficient of friction between material to be shredded and the active part (10; 101) of the thickness sensor (7; 71; 72).
  7. Shredder as claimed in claim 6,
    characterised in that
    the cylinder surface (15) is roughened.
  8. Shredder as claimed in claim 6,
    characterised in that
    the cylinder surface (15) is provided with a rubber-like layer.
  9. Shredder as claimed in claim 6,
    characterised in that
    the cylinder surface (15) is provided with longitudinal grooves.
  10. Shredder as claimed in claim 6,
    characterised in that
    the cylinder surface (15) is provided with spikes.
  11. Shredder as claimed in at least one of claims 5 to 10, characterised in that
    the restoring force of the switch (14) - after removing too thick material - also pivots the active part (10; 101) of the thickness sensor (7; 71; 72) back in rotation.
  12. Shredder as claimed in at least one of claims 5 to 10, characterised in that
    the restoring force of the switch (14) or a restoring moment in the active part (10; 101) of the thickness sensor (7; 71; 72) is of an adjustable configuration.
EP14152035.3A 2013-01-26 2014-01-21 Shredder Active EP2759346B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013001260 2013-01-26

Publications (2)

Publication Number Publication Date
EP2759346A1 EP2759346A1 (en) 2014-07-30
EP2759346B1 true EP2759346B1 (en) 2019-03-13

Family

ID=50000799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14152035.3A Active EP2759346B1 (en) 2013-01-26 2014-01-21 Shredder

Country Status (3)

Country Link
US (1) US9480988B2 (en)
EP (1) EP2759346B1 (en)
DE (1) DE102014100669A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106824432B (en) * 2016-12-21 2019-11-22 宁波江北思洞工业设计有限公司 A kind of shredder of antiwind hair
WO2019056712A1 (en) * 2017-09-21 2019-03-28 徐宁 Automatic paper feeding method for paper shredder, and paper shredder with improved automatic paper feeding device
EP3560599B1 (en) * 2018-04-27 2020-10-28 Rapid Granulator AB Feeding arrangement for a granulator and granulator comprising such a feeding arrangement

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1199903A (en) 1969-01-10 1970-07-22 Acral Ltd Shredding Machine
JPS5770445A (en) 1980-10-22 1982-04-30 Ngk Spark Plug Co Ltd Gas sensitive element
US4982907A (en) 1988-04-28 1991-01-08 Sedgwick Brian C Document shredder
DE4103950C1 (en) 1991-02-09 1992-04-23 Geha-Werke Gmbh, 3000 Hannover, De
JP3264955B2 (en) 1991-09-30 2002-03-11 株式会社明光商会 Paper shredder
JP3091320B2 (en) 1992-05-26 2000-09-25 リコーエレメックス株式会社 Paper feeder for shredder
JP3202482B2 (en) 1994-05-10 2001-08-27 リコーエレメックス株式会社 Shredder paper feeder
US5494229A (en) 1994-08-19 1996-02-27 Cummins-Allison Corp. Paper shredder with an improved lubrication system and method of lubricating
JP3095114B2 (en) 1994-08-31 2000-10-03 リコーエレメックス株式会社 Paper feeder for shredder and paper feed method using the same
JP3478507B2 (en) 1994-10-13 2003-12-15 リコーエレメックス株式会社 Shredder paper feeder
JPH08164343A (en) 1994-12-14 1996-06-25 Ricoh Elemex Corp Paper feeder of shredder
JP3754186B2 (en) 1997-08-18 2006-03-08 株式会社トプコン Electron beam optical device
GB9811275D0 (en) 1998-05-26 1998-07-22 The Technology Partnership Plc Paper shredding apparatus
EP1177832A4 (en) 1999-02-16 2006-04-19 Meiko Shokai Kk Shredder drive control device and method of drivingly controlling the shredder
JP2002239405A (en) 2001-02-22 2002-08-27 Nakabayashi Co Ltd Charging port for material to be shredded in shredder
DE202004000907U1 (en) 2004-01-22 2005-05-25 Krug & Priester Gmbh & Co. Kg. Crushing device, in particular shredder
US7661614B2 (en) 2004-09-10 2010-02-16 Fellowes Inc. Shredder throat safety system
US7631822B2 (en) 2004-09-10 2009-12-15 Fellowes Inc. Shredder with thickness detector
US7954737B2 (en) 2007-10-04 2011-06-07 Fellowes, Inc. Shredder thickness with anti-jitter feature
US7798435B2 (en) 2006-03-22 2010-09-21 Fellowes, Inc. Shredder with oiling mechanism
US7311276B2 (en) 2004-09-10 2007-12-25 Fellowes Inc. Shredder with proximity sensing system
US7490786B2 (en) 2005-01-04 2009-02-17 Fellowes, Inc. Shredder with stack thickness gauge
JP4215001B2 (en) 2005-01-21 2009-01-28 トヨタ自動車株式会社 Interphase insulating paper and stator using the interphase insulating paper
US8672247B2 (en) * 2005-07-11 2014-03-18 Fellowes, Inc. Shredder with thickness detector
GB2437594B (en) * 2006-04-24 2010-08-11 Acco Uk Ltd A shredding machine
DE202006012363U1 (en) * 2006-06-01 2007-10-04 Dahle Bürotechnik Gmbh Shredders
DE102007020222B4 (en) 2007-04-28 2014-03-06 Hermann Schwelling paper shredder
US7739934B2 (en) 2008-09-08 2010-06-22 Power Tool Institute Detection system for power tool
JP5317739B2 (en) 2009-02-04 2013-10-16 三菱重工印刷紙工機械株式会社 Folding machine
US8678305B2 (en) 2009-06-18 2014-03-25 Fellowes, Inc. Restrictive throat mechanism for paper shredders
US8511593B2 (en) * 2010-05-28 2013-08-20 Fellowes, Inc. Differential jam proof sensor for a shredder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20140231558A1 (en) 2014-08-21
EP2759346A1 (en) 2014-07-30
DE102014100669A1 (en) 2014-07-31
US9480988B2 (en) 2016-11-01

Similar Documents

Publication Publication Date Title
DE102007006587A1 (en) paper shredder
DE2436717A1 (en) SLOT AND FOLDING DEVICE FOR CONTINUOUS MATERIAL TRAILS
DE102014105672B4 (en) Device for compressing containers
EP2759346B1 (en) Shredder
DE4244787C2 (en) Device for moving cutting knife bars on a cutting cylinder of a rotary printing press
EP0795353B1 (en) Document shredder
DE102007059625A1 (en) Strand cutter
DE19703486A1 (en) Post-shredding device
EP1166879A1 (en) Device and method for comminuting bulky, household and industrial refuse and the like
EP3195934B1 (en) Grinding device and method for operating the same
DE1953681C3 (en) Device for cutting up documents
EP2152422B1 (en) Document shredder
DE19742754C5 (en) Cutter for a document shredder with different cutting disc pitches
DE3230544C2 (en) Device for removing air pockets between a calender roll surface and a calendered rubber or plastic plate
DE3142089A1 (en) CUTTING DEVICE FOR CROSS-CUTTING THE PAPER
DE102006008875A1 (en) Shredder e.g. paper shredder, for chopping flat material e.g. paper, has contactlessly operating proximity sensor arranged in supply opening for detecting approaching of hand or body part of control person at supply opening
EP1186561B1 (en) Cutting device for cutting a web in a folding machine
EP3590871A1 (en) Switch of a tablet outlet of a tablet press and method for actuating a switch
DE102012103199A1 (en) Device useful for mechanical disruption of cells, comprises two driven rollers, working gap which is adjustable between rolling surfaces comprising apparatus for perforating cell walls and casing rings via which rollers are pressed together
DE4025631A1 (en) Document-file shredder mechanism - has knives fitting between feed roller discs and plates preventing wrapping round them
EP0601133B1 (en) Grinder
DE202017101936U1 (en) Cutting unit with counter cutters provided on stripping elements
DE19626504C2 (en) Cutting device for shredders
DE709529C (en) Sheeter
EP1358941A1 (en) Cutting tool for document shredder

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140121

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20150130

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RIC1 Information provided on ipc code assigned before grant

Ipc: B02C 25/00 20060101ALI20180209BHEP

Ipc: B02C 18/16 20060101ALI20180209BHEP

Ipc: B02C 18/22 20060101ALI20180209BHEP

Ipc: B02C 18/00 20060101AFI20180209BHEP

17Q First examination report despatched

Effective date: 20180223

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180914

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1106980

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014011076

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190313

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: LT

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

Effective date: 20190313

Ref country code: FI

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

Effective date: 20190313

Ref country code: SE

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

Effective date: 20190313

Ref country code: NO

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

Effective date: 20190613

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

Ref country code: GR

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

Effective date: 20190614

Ref country code: HR

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

Effective date: 20190313

Ref country code: BG

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

Effective date: 20190613

Ref country code: RS

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

Effective date: 20190313

Ref country code: LV

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

Effective date: 20190313

Ref country code: NL

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

Effective date: 20190313

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

Ref country code: RO

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

Effective date: 20190313

Ref country code: SK

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

Effective date: 20190313

Ref country code: CZ

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

Effective date: 20190313

Ref country code: ES

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

Effective date: 20190313

Ref country code: AL

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

Effective date: 20190313

Ref country code: PT

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

Effective date: 20190713

Ref country code: EE

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

Effective date: 20190313

Ref country code: IT

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

Effective date: 20190313

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

Ref country code: PL

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

Effective date: 20190313

Ref country code: SM

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

Effective date: 20190313

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014011076

Country of ref document: DE

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

Ref country code: IS

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

Effective date: 20190713

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: DK

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

Effective date: 20190313

26N No opposition filed

Effective date: 20191216

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

Ref country code: SI

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

Effective date: 20190313

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

Ref country code: TR

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

Effective date: 20190313

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

Ref country code: MC

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

Effective date: 20190313

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200131

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

Ref country code: LU

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

Effective date: 20200121

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

Ref country code: LI

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

Effective date: 20200131

Ref country code: CH

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

Effective date: 20200131

Ref country code: BE

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

Effective date: 20200131

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

Ref country code: IE

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

Effective date: 20200121

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1106980

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200121

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

Ref country code: AT

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

Effective date: 20200121

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

Ref country code: DE

Payment date: 20211228

Year of fee payment: 9

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

Ref country code: MT

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

Effective date: 20190313

Ref country code: CY

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

Effective date: 20190313

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

Ref country code: FR

Payment date: 20220119

Year of fee payment: 9

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

Ref country code: MK

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

Effective date: 20190313

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

Ref country code: GB

Payment date: 20230119

Year of fee payment: 10

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230527

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502014011076

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20230801

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

Ref country code: FR

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

Effective date: 20230131