EP0260636A2 - Stripper for the cutting mechanism of a document shredder - Google Patents

Stripper for the cutting mechanism of a document shredder Download PDF

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Publication number
EP0260636A2
EP0260636A2 EP87113399A EP87113399A EP0260636A2 EP 0260636 A2 EP0260636 A2 EP 0260636A2 EP 87113399 A EP87113399 A EP 87113399A EP 87113399 A EP87113399 A EP 87113399A EP 0260636 A2 EP0260636 A2 EP 0260636A2
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EP
European Patent Office
Prior art keywords
scraper
pair
wipers
scraper according
parts
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.)
Granted
Application number
EP87113399A
Other languages
German (de)
French (fr)
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EP0260636A3 (en
EP0260636B1 (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.)
H S M Pressen GmbH
Original Assignee
H S M Pressen GmbH
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 H S M Pressen GmbH filed Critical H S M Pressen GmbH
Publication of EP0260636A2 publication Critical patent/EP0260636A2/en
Publication of EP0260636A3 publication Critical patent/EP0260636A3/en
Application granted granted Critical
Publication of EP0260636B1 publication Critical patent/EP0260636B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/182—Disc-shaped knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B02C2018/0069—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents with stripping devices

Definitions

  • the invention relates to wipers for shredder cutting units according to the preamble of the main claim and is based on the prior art in this case of a wiper system according to DE-PS 31 12 838 by the same applicant.
  • the object of the present invention is to further simplify the construction of a cutting mechanism of the type known from DE-PS 31 12 838, as well as to make it more compact and lighter with the same performance, and the function of To improve the material intake and the wiping effect during roll forward and return.
  • the drawing largely shows schematically the cross section of a cutting unit with the new wiper design.
  • the cutting mechanism shown consists in its basic structure known from DE-PS 31 12 838 first of all from the core pieces 1 and 2 of the cutting rollers with the disk-like cutting blades 1a and 2a and the approximately half-shell-shaped scrapers 3 and 4 comprising the respective roller cores 1 and 2.
  • scraper head parts (3b, 4b) of each scraper pair 3, 4 form a preferably parallel conveyor gap "Fsp" up to approximately the mutually facing inner limits "K" of the roll core 1 and 2 extend and the scraper head parts 3b, 4b following their area running in the conveyor gap "Fsp” with at least one nose 7 protruding from the peripheral cutting disks 1a, 2a and a nose 7 running thereon and in the direction of the respective foot part 3a, 4b Groove 8 are provided, which extends with a preferably curved course again into the interior of the cutting disk circumference 1a, 2a.
  • this configuration prevents the occurrence of excessive compressive forces on the wiper head parts 3b, 4b on the exit side of the cut material and, on the other hand, results in a good wiping function with roll return for this material. It is also important for this that the depth "T" of the groove 8 is at least the same, but better deeper than that of the transverse grooves (not shown) of the cutting disks 1a, 2a. Ultimately, the additional feed or feed roller for crumpled paper or the like which has always been required in the prior art.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

Bei einem in Kompaktbauweise hergestellten Schneidwerk für Aktenvernichter ist bezüglich der Anordnung der Haltestangen für die Abstreifer vorgesehen, daß innerhalb jedes der Abstreiferpaare ( 3, 4 ) die Fußteile ( 3a, 4a ) einander soweit genähert sind, daß die dort befindliche, zweite Lagerstange ( 6 ), sowohl für die eine ( 3 ) als auch für die andere Hälfte ( 4 ) des jeweiligen Abstreiferpaares ( 3, 4 ) als gemeinsame Lagerstange ( 6 ) dient.In the case of a cutting unit for document shredders manufactured in a compact design, it is provided with regard to the arrangement of the holding rods for the wipers that within each of the wiper pairs (3, 4) the foot parts (3a, 4a) are so close to one another that the second bearing rod (6 ), serves as a common bearing rod (6) both for one (3) and for the other half (4) of the respective wiper pair (3, 4).

Description

Die Erfindung bezieht sich auf Abstreifer zu Aktenver­nichter-Schneidwerken nach dem Oberbegriff des Hauptan­spruchs und geht zum Stand der Technik dabei aus von ei­nem Abstreifersystem nach der DE-PS 31 12 838 des gleichen Anmelders.The invention relates to wipers for shredder cutting units according to the preamble of the main claim and is based on the prior art in this case of a wiper system according to DE-PS 31 12 838 by the same applicant.

Nachteile eines Schneidwerks nach der zuvorbenannten Pa­ tentschrift, das sich in der Praxis bereits in großem Umfang bewährt hat, sind an sich keine bekannt; dennoch liegt im Rahmen der steten Forderungen nach technischen Verbesserungen die Aufgabe der vorliegenden Erfindung darin, ein Schneidwerk der aus der DE-PS 31 12 838 be­kannten Art baulich noch weitergehend zu vereinfachen, sowie bei gleicher Leistung noch kompakter und leichter zu gestalten sowie die Funktion von Materialeinzug und die Abstreifwirkung bei Walzenvor- und -rücklauf zu ver­bessern.Disadvantages of a cutting unit according to the aforementioned Pa tent writing, which has already proven itself in practice on a large scale, are not known per se; Nevertheless, within the scope of the constant demands for technical improvements, the object of the present invention is to further simplify the construction of a cutting mechanism of the type known from DE-PS 31 12 838, as well as to make it more compact and lighter with the same performance, and the function of To improve the material intake and the wiping effect during roll forward and return.

Gelöst wird diese Gesamtaufgabe durch die im Hauptanspruch angegebenen baulichen Mittel und Maßnahmen; weitere er­findungsgemäß wesentliche Merkmale sind in den Unteran­sprüchen enthalten.This overall task is solved by the structural means and measures specified in the main claim; further features essential to the invention are contained in the subclaims.

Die Zeichnung zeigt weitesgehend schematisch den Quer­schnitt eines Schneidwerks mit der neuen Abstreiferaus­bildung.The drawing largely shows schematically the cross section of a cutting unit with the new wiper design.

Das dargestellte Schneidwerk besteht in seinem aus der DE-PS 31 12 838 bekannten Grundaufbau zunächst aus den Kernstücken 1 bzw. 2 der Schneidwalzen mit den scheiben­artigen Schneidmessern 1a und 2a sowie den etwa halb­schalenförmig die jeweiligen Walzenkerne 1 bzw. 2 umfas­senden Abstreifer 3 und 4.The cutting mechanism shown consists in its basic structure known from DE-PS 31 12 838 first of all from the core pieces 1 and 2 of the cutting rollers with the disk-like cutting blades 1a and 2a and the approximately half-shell-shaped scrapers 3 and 4 comprising the respective roller cores 1 and 2.

Zur Lösung der eingangs gestellten Aufgabe ist nun zu­nächst einmal vorgesehen, bauliche Kompaktheit und Ein­sparung von Material bzw. Reduzierung des Gewichts da­durch zu erzielen, daß innerhalb jedes der Abstreifer­paare 3, 4 die Fußteile 3a, 4a einander soweit genähert sind, daß die dort befindliche, zweite Lagerstange 6, sowohl für die eine 3 als auch für die andere Hälfte 4 des jeweiligen Abstreiferpaares 3, 4 als gemeinsame La­gerstange 6 dient, wobei vorzugsweise zudem noch die Abstreifer 3, 4 jedes Paares im Fußbereich 3a, 4a anein­ander und/oder am jeweiligen Walzenkern 1 bzw 2 anliegen und die gemeinsame Lagerstange 6 jedes Abstreiferpaares 3, 4 in eine schalen- bzw. muldenförmige Aussparung 9 jedes der Abstreiferteile 3 bzw. 4 eingelegt ist. In welcher Weise bei Walzenvor- oder -rücklauf die Kopfteile 3b bzw. 4b der Abstreifer 3 bzw. 4 nun auch belastet wer­den, kommen immer zwei der die Stangen 5 und 6 unmittel­bar zum Tragen, ja es werden sogar auch noch Kräfte von der dritten Stange 5 zusätzlich aufgenommen.To solve the problem set out at the outset, it is initially intended to achieve structural compactness and savings in material or reduction in weight by virtue of the fact that within each of the scraper pairs 3, 4, the foot parts 3a, 4a are so close to one another that the second bearing rod 6, both for the one 3 and for the other half 4 of the respective wiper pair 3, 4 serves as a common bearing rod 6, wherein preferably also the wipers 3, 4 of each pair in the foot region 3a, 4a to one another and / or to the respective one Roll core 1 or 2 abut and the common bearing rod 6 of each stripper pair 3, 4 is inserted into a shell-shaped or trough-shaped recess 9 of each of the stripper parts 3 and 4. In which way the head parts 3b and 4b of the wipers 3 and 4 are now also loaded in the case of roll forward or return, two of the rods 5 and 6 always come into effect, and even forces from the third rod also become effective 5 added.

Als weiteres wichtiges Merkmal ist anzusehen, daß sich die Abstreiferkopfteile ( 3b, 4b ) jedes Abstreifer­paares 3, 4 unter Bildung eines vorzugsweise parallelen Förderspaltes " Fsp " bis annähernd an die einander zu­gekehrten, inneren Begrenzungen " K " des Walzenkernes 1 bzw. 2 erstrecken und die Abstreiferkopfteile 3b, 4b im Anschluß an ihren jeweils im Förderspalt " Fsp " verlau­fenden Bereich mit mindestens einer aus dem Umfangschneid­scheiben 1a, 2a herausragenden Nase 7 und einer daran und in Richtung auf das jeweilige Fußteil 3a, 4b hin verlaufen­den Kehlung 8 versehen sind, die sich mit vorzugsweise ge­schwungenem Verlauf wieder bis ins Innere des Schneid­scheibenumfangs 1a, 2a erstreckt. Diese Ausgestaltung ver­hindert einerseits des Entstehen zu großer Druckkräfte auf die Abstreiferkopfteile 3b, 4b an der Austrittsseite des geschnittenen Materials und ergibt andererseits eine gute Abstreiffunktion bei Walzenrücklauf für dieses Material. Wichtig hierfür ist noch, daß die Tiefe " T " der Kehlung 8 zumindest gleich, besser jedoch tiefer als die der Quernuten ( nicht dargestellt ) der Schneidscheiben 1a, 2a ist. Letztlich kann die beim Stand der Technik bis­lang stets erforderliche, zusätzliche Einzugs- bzw. Zu­führwalze für Knüllpapier o.dgl. noch dadurch entfallen, daß die auf der Einzugsseite " E " liegende Nase(n) 7a an oder kurz vor " y " dem Außendurchmesser der Schneid­scheiben 1a, 2a endet, da durch diese Lösung erstens der Einzugswinkel A₁ auf der Zuführseite "E" wesentlich größer als derjenige A₂ auf der Materialaustrittsseite wird und das Knüllpapier somit mit einem größeren Be­reich des rauhen Schneidscheibenumfangs in Berührung kommt und somit genau so sicher eingezogen wird, wie durch eine gesonderte Einzugswalze.Another important feature is that the scraper head parts (3b, 4b) of each scraper pair 3, 4 form a preferably parallel conveyor gap "Fsp" up to approximately the mutually facing inner limits "K" of the roll core 1 and 2 extend and the scraper head parts 3b, 4b following their area running in the conveyor gap "Fsp" with at least one nose 7 protruding from the peripheral cutting disks 1a, 2a and a nose 7 running thereon and in the direction of the respective foot part 3a, 4b Groove 8 are provided, which extends with a preferably curved course again into the interior of the cutting disk circumference 1a, 2a. On the one hand, this configuration prevents the occurrence of excessive compressive forces on the wiper head parts 3b, 4b on the exit side of the cut material and, on the other hand, results in a good wiping function with roll return for this material. It is also important for this that the depth "T" of the groove 8 is at least the same, but better deeper than that of the transverse grooves (not shown) of the cutting disks 1a, 2a. Ultimately, the additional feed or feed roller for crumpled paper or the like which has always been required in the prior art. still omitted that the lying on the feed side "E" nose (s) 7a at or shortly before "y" ends the outside diameter of the cutting disks 1a, 2a, since this solution makes the feed angle A₁ on the feed side "E" much larger than that A₂ is on the material exit side and the crumpled paper thus comes into contact with a larger area of the rough circumference of the cutting disc and is thus pulled in just as safely as by a separate feed roller.

Claims (7)

1. Abstreifer für das Schneidwerk von Aktenvernichtern, die vornehmlich Messerwalzen aufweisen, welche ein­stückig aus Vollmaterial herausgearbeitet sind, und diese Abstreifer als Paare jeweils spiegelbildlich zu­einander liegen und daß zur Lagerung der in axialer Richtung je Reihe stets fluchtender Abstreifer zumin­dest zwei, mit gegenseitigem Abstand zueinander ange­ordnete, die eine mit der anderen Lagerplatte verbinden­de Stangen dienen welche die Abstreiferfußteile durch­dringen,
dadurch gekennzeichnet,
daß innerhalb jedes der Abstreiferpaare ( 3, 4 ) die Fußteile ( 3a, 4a ) einander soweit genähert sind, daß die dort befindliche, zweite Lagerstange ( 6 ), so­wohl für die eine ( 3 ) als auch für die andere Hälfte ( 4 ) des jeweiligen Abstreiferpaares ( 3, 4 ) als gemeinsame Lagerstange ( 6 ) dient.1. Scraper for the cutter of document shredders, which mainly have knife rollers, which are made in one piece from solid material, and these scrapers are pairs as mirror images of each other and that for storing the strippers that are always aligned in the axial direction per row, at least two, at a mutual distance from each other arranged, which serve a connecting rod with the other bearing plate which penetrate the wiper foot parts,
characterized,
that within each of the scraper pairs (3, 4) the foot parts (3a, 4a) are so close to each other that the second bearing rod (6) located there, both for one (3) and for the other half (4) of the each pair of wipers (3, 4) serves as a common bearing rod (6). 2. Abstreifer nach Anspruch 1,
dadurch gekennzeichnet,
daß sich die Abstreiferkopfteile ( 3b, 4b ) jedes Ab­streiferpaares ( 3, 4 ) unter Bildung eines vorzugs­weise parallelen Förderspaltes ( Fsp ) bis annähernd an die einander zugekehrten, inneren Begrenzungen ( K ) des Walzenkernes ( 1 bzw. 2 ) erstrecken.2. scraper according to claim 1,
characterized,
that the scraper head parts (3b, 4b) of each scraper pair (3, 4) extend to form a preferably parallel conveyor gap (Fsp) up to approximately the mutually facing inner limits (K) of the roller core (1 or 2). 3. Abstreifer nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet,
daß die Abstreiferkopfteile ( 3b, 4b ) im Anschluß an ihren jeweils im Förderspalt ( Fsp ) verlaufenden Be­reich mit mindestens einer aus dem Umfangschneid­scheiben ( 1a, 2a ) herausragenden Nase ( 7 ) und einer daran und in Richtung auf das jeweilige Fuß­teil ( 3a, 4b ) hin verlaufenden Kehlung ( 8 ) ver­sehen sind, die sich mit vorzugsweise geschwungenem Verlauf wieder bis ins Innere des Schneidscheibenum­fangs ( 1a, 2a ) erstreckt.3. scraper according to claims 1 and 2,
characterized,
that the scraper head parts (3b, 4b) in connection with their respective areas running in the conveying gap (Fsp) with at least one nose (7) and protruding from the peripheral cutting disks (1a, 2a) a groove (8) running thereon and in the direction of the respective foot part (3a, 4b) is provided, which extends again with a preferably curved course into the interior of the cutting disk circumference (1a, 2a). 4. Abstreifer nach Anspruch 3,
dadurch gekennzeichnet,
daß die auf der Einzugsseite ( E ) liegende Nase(n) ( 7a ) an oder kurz vor ( y ) dem Außendurchmesser der Schneidscheiben ( 1a, 2a ) endet.4. scraper according to claim 3,
characterized,
that the nose (n) (7a) lying on the intake side (E) ends at or just before (y) the outer diameter of the cutting disks (1a, 2a). 5. Abstreifer nach den Ansprüchen 1 bis 4,
dadurch gekennzeichnet,
daß die Tiefe ( T ) der Kehlung ( 8 ) zumindest gleich, besser jedoch tiefer als die der Quernuten ( nicht dar­gestellt ) der Schneidscheiben ( 1a, 2a ) ist.5. scraper according to claims 1 to 4,
characterized,
that the depth (T) of the groove (8) is at least the same, but better deeper than that of the transverse grooves (not shown) of the cutting disks (1a, 2a). 6. Abstreifer nach einem oder mehreren der vorhergehenden Ansprüche,
daß die Abstreifer ( 3, 4 ) jedes Paares im Fußbereich ( 3a, 4a ) aneinander und/oder am jeweiligen Walzen­kern ( 1 bzw. 2 ) anliegen ( Linie x ).6. scraper according to one or more of the preceding claims,
that the wipers (3, 4) of each pair in the foot region (3a, 4a) abut each other and / or on the respective roller core (1 or 2) (line x). 7. Abstreifer nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die gemeinsame Lagerstange ( 6 ) jedes Abstreifer­paares ( 3, 4 ) in eine schalen- bzw. muldenförmige Aussparung ( 9 ) jeder der Abstreiferteile ( 3 bzw. 4 ) eingelegt ist.7. scraper according to one or more of the preceding claims,
characterized,
that the common bearing rod (6) of each pair of wipers (3, 4) is inserted into a bowl-shaped or trough-shaped recess (9) of each of the wiper parts (3 or 4).
EP87113399A 1986-09-15 1987-09-14 Stripper for the cutting mechanism of a document shredder Expired - Lifetime EP0260636B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863631362 DE3631362A1 (en) 1986-09-15 1986-09-15 SCRAPER FOR THE CUTTERS OF DOCUMENT shredders
DE3631362 1986-09-15

Publications (3)

Publication Number Publication Date
EP0260636A2 true EP0260636A2 (en) 1988-03-23
EP0260636A3 EP0260636A3 (en) 1989-05-31
EP0260636B1 EP0260636B1 (en) 1990-12-05

Family

ID=6309620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113399A Expired - Lifetime EP0260636B1 (en) 1986-09-15 1987-09-14 Stripper for the cutting mechanism of a document shredder

Country Status (3)

Country Link
US (1) US4809916A (en)
EP (1) EP0260636B1 (en)
DE (1) DE3631362A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795353A1 (en) * 1996-03-14 1997-09-17 SCHLEICHER & Co. INTERNATIONAL AKTIENGESELLSCHAFT Document shredder
WO2016070948A1 (en) 2014-11-07 2016-05-12 Akten-Ex Gmbh & Co Kg Destruction of printed paper

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261177B (en) * 1991-10-10 1995-03-29 Ofrex Group Holdings Plc Improvements relating to document shredding machines
EP0616850B1 (en) * 1993-03-22 1997-07-23 Hermann Schwelling Document shredder
DE4423350C2 (en) * 1993-07-20 1996-09-05 Hermann Schwelling Scraper system for document shredders
US5676321A (en) * 1995-04-03 1997-10-14 Fellowes Mfg. Co. Cutting disk
US5636801A (en) * 1995-08-02 1997-06-10 Fellowes Mfg. Co. One piece molded stripper for shredders
US5655725A (en) * 1995-08-24 1997-08-12 Fellowes Manufacturing Co. Retaining plate for gearing
US5829697A (en) * 1995-08-24 1998-11-03 Fellowes Manufacturing Company Support for cylinders in a paper shredder
DE19712661C2 (en) * 1997-03-26 2003-04-10 Schleicher & Co Int Ag Scraper for a cutter of a document shredder
US5954280A (en) * 1998-05-12 1999-09-21 Fellowes Manufacturing Company Top blocker for a paper shredder
US7100854B2 (en) * 2004-03-18 2006-09-05 Helen Of Troy Limited Chopper
DE102012100681B4 (en) 2012-01-27 2022-09-01 Hermann Schwelling Document shredder with turbo function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018392A (en) * 1975-12-22 1977-04-19 Wagner John W Shredding machine
DE3311331A1 (en) * 1983-03-29 1984-10-11 Hermann 7777 Salem Schwelling SCRAPER SYSTEM FOR THE CUTTERS OR TORCH ROLLERS OF PAPER CRUSHERS
US4489897A (en) * 1983-03-02 1984-12-25 General Binding Corporation Apparatus for shredding documents
DE3539503A1 (en) * 1984-11-23 1986-06-05 Wilhelm Dahle Büro- und Zeichengerätefabrik, 8630 Coburg Cutting mechanism for a document shredder

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DE2338654C2 (en) * 1973-07-31 1986-04-10 Adolf 7460 Balingen Ehinger jun. Shredding device, in particular document shredders
SU517676A1 (en) * 1975-01-06 1976-06-15 Курский Филиал Всесоюзного Научно-Исследовательского Института Оргтехники Paper shredder
FR2502980B1 (en) * 1981-03-31 1986-05-16 Schwelling Hermann CUTTING MECHANISM FOR DOCUMENT DESTROYER
DE3112838C2 (en) * 1981-03-31 1985-09-12 Hermann 7777 Salem Schwelling Cutting unit for document shredders
DE8434402U1 (en) * 1984-11-23 1985-04-25 Wilhelm Dahle Büro- und Zeichengerätefabrik, 8630 Coburg CUTTING DEVICE FOR A SHREDDER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018392A (en) * 1975-12-22 1977-04-19 Wagner John W Shredding machine
US4489897A (en) * 1983-03-02 1984-12-25 General Binding Corporation Apparatus for shredding documents
DE3311331A1 (en) * 1983-03-29 1984-10-11 Hermann 7777 Salem Schwelling SCRAPER SYSTEM FOR THE CUTTERS OR TORCH ROLLERS OF PAPER CRUSHERS
DE3539503A1 (en) * 1984-11-23 1986-06-05 Wilhelm Dahle Büro- und Zeichengerätefabrik, 8630 Coburg Cutting mechanism for a document shredder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795353A1 (en) * 1996-03-14 1997-09-17 SCHLEICHER & Co. INTERNATIONAL AKTIENGESELLSCHAFT Document shredder
US5934580A (en) * 1996-03-14 1999-08-10 Schleicher & Co. International Document shredder
WO2016070948A1 (en) 2014-11-07 2016-05-12 Akten-Ex Gmbh & Co Kg Destruction of printed paper
DE202015009627U1 (en) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Paper from a shredder
DE202015009629U1 (en) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Plant for shredding files
DE202015009626U1 (en) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg paper shredder

Also Published As

Publication number Publication date
EP0260636A3 (en) 1989-05-31
US4809916A (en) 1989-03-07
DE3631362C2 (en) 1989-06-29
EP0260636B1 (en) 1990-12-05
DE3631362A1 (en) 1988-03-24

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