EP1334771B1 - Destructeur de documents - Google Patents

Destructeur de documents Download PDF

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Publication number
EP1334771B1
EP1334771B1 EP03002761.9A EP03002761A EP1334771B1 EP 1334771 B1 EP1334771 B1 EP 1334771B1 EP 03002761 A EP03002761 A EP 03002761A EP 1334771 B1 EP1334771 B1 EP 1334771B1
Authority
EP
European Patent Office
Prior art keywords
cutting
stripper
document shredder
roller
cutting mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03002761.9A
Other languages
German (de)
English (en)
Other versions
EP1334771A1 (fr
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
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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
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Publication of EP1334771A1 publication Critical patent/EP1334771A1/fr
Application granted granted Critical
Publication of EP1334771B1 publication Critical patent/EP1334771B1/fr
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
    • B02C18/0007—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
    • 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
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C2018/147—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers of the plural stage type

Definitions

  • the invention relates to a document shredder of large design, which is used for the shredding of large quantities as well as large-volume data carrier material, such as paper stacks, cardboard boxes, file folders, file bundles and the like materials.
  • large shredders are known in which the material to be crushed is squeezed by relatively blunt cutting tools and large kerf and thus torn and not chopped.
  • a major disadvantage of these known shredders is their relatively low efficiency.
  • the object of the invention is to provide a document shredder, with the large-sized and / or large-volume said data carrier material with a high efficiency, ie with an hourly output greater than 2,000 kg, can be crushed, with the shredded material at least equivalent to security level 3.
  • the crux of the invention consists, on the one hand, in that at least two superposed comminuting units (cutting units) are provided, in particular a first, a second and a third cutting unit.
  • Each cutting unit has a separate housing, which are arranged in a frame / frame such that, depending on the task, so the material type of the raw material to be shredded, at least the second or the third cutting unit can be selectively replaced or removed against a cutting unit of other power.
  • the superimposed cutting units are provided so that the Thomasgutaustritt the respective upper cutting unit is also Thomasguteintritt for the respective lower cutting unit.
  • At least the upper crushing unit has two superposed pairs of work rolls.
  • the lower pair of work rolls that is, the cutting rollers arranged parallel to one another, are arranged such that the cutting disks of these work rolls mesh at least in sections.
  • the work rolls of the upper pair are not meshed with each other and arranged so that the imaginary outer peripheral line of each feed knife of these feed rollers at a small distance from the imaginary perimeter of the partially interrupted peripheral surface of Cutting discs of the respective associated cutting roller is positioned.
  • the cutting rollers are made of one piece of solid steel, so they are robust and resistant to bending.
  • these cutting rollers are made of wear-resistant chrome-nickel steel, wherein the cutting edges of the cutting discs of these cutting rollers are hardened.
  • the cutting discs of these cutting rollers are also provided with a special geometry, which will be described in more detail in the following description parts.
  • a common scraper is assigned in the shredding units of the shredder, which are equipped with four work rolls, the substantially stacked work rolls, ie each a cutting roller and a feed roller.
  • the scraper can be assembled in one piece or from individual parts.
  • the tine-like projections of the scrapers engage in the spaces between the cutting discs of the cutting roller and the spaces between the feed of the feed roller and engage, preferably in the form of a half shell, to the respective core diameter of these work rolls.
  • the end regions of the wiper tines resting against the relevant core diameter are formed at an acute angle.
  • the top cutting through scrapers are responsible for the cleaning of the feed roller and the cutting rollers. Because a common scraper / Abstreiferkamm is associated with the lower right and the right upper work roll and the left lower and the left upper work roll of the cutting unit, it is avoided that clippings are repeatedly pulled through the cutting unit. As a result, another performance-reducing factor has been eliminated.
  • the feed rollers cause the comminuted material slipping toward the cutting rollers to be kept in motion and thus no bridge formation in the comminuted material to be fed arises.
  • a material bridge would interfere with an automatic slipping of the material to be crushed to the cutting rollers, at least temporarily, which adversely affects the efficiency of a shredder, thus acting against the task.
  • each of the left and the right working rolls of the cutting unit is assigned a drive.
  • the drive is preferably designed as a chain drive. With this drive, the respective cutting roller is driven directly.
  • each drive is spring mounted on the housing. The drive of the feed rollers takes place in each case via a further chain drive from the associated cutting roller.
  • FIG. 1 and 2 show the new document shredder in a side view and a perspective view, with the panel parts of the shredder 1 are removed.
  • the possible embodiment of the new document shredder shown here comprises a first cutting unit 100, a second cutting unit 200 and a third cutting unit 300, which are arranged in a rack 2 in the order of listing from top to bottom.
  • the frame 2 consists of four corner pillars 10, 11, 12 and 13, which are connected by means of longitudinal webs 9 and 8 and transverse webs 2.5 to 2.10 and form a frame.
  • the described exemplary embodiment is conceptually subdivided into an upper region 2.1, a second region 2.2, a third region 2.3 and a lower region 2.4.
  • the planes in which the guides 3.1 to 3.3 are respectively arranged form the horizontally lying planes E 1, E 2 and E 3, these planes each lying in the border region between two adjacent regions.
  • longitudinally slidable runners 6 and 7 are provided. These skids may be part of the guides or component of the housing of the respective cutting units 200 and 300.
  • This embodiment has the advantage that, depending on the task, ie on the type of raw material to be shredded, at least the second cutting mechanism 200 or the third cutting mechanism 300 optional can be replaced or removed against a cutting unit of other power.
  • the respective transition region between the outlet opening 106 of the first cutting mechanism 100 and the overhead inlet opening of the second cutting mechanism 200 and the outlet opening of the second cutting mechanism 200 arranged at the bottom and the overhead inlet opening of the third cutting unit 300 is bridged by a first hopper 4 and a second hopper 5 and sealed off from the environment, so that shredded material can not easily fall sideways from the shredder.
  • the cutting performance of the first cutting unit 100, the second cutting unit 200 and the third cutting unit 300 are coordinated so that the respective lower arranged cutting unit on the one hand is not empty and on the other hand, the feed, formed from the respective hopper 4 and 5 and above the cutting rollers space in the respective cutting unit, is not clogged.
  • the upper cutting unit 100 For mounting, storage and management of the components of the cutting a frame is provided. This consists of side parts 101 and 102 which are spaced from each other by front side members 103 and 104 are connected to each other. On the front side parts 103 and 104, a drive 110 or 111 is respectively arranged, with the interposition of a chain drive, the work rolls 120, 130, 140 and 150 are driven.
  • the drive 110 is mounted on a bearing plate 107, wherein this bearing plate 107 is articulated on a tilting bearing 108.
  • the tilting bearing 108 is provided sideways of the center of mass of the drive 110.
  • an adjustable stop 109 is provided on the bearing plate 107, which is directed in the direction of the front side part 103 of the frame 101 and connected to selbigen 103.
  • This adjustable stop 109 is used to drive the chain in the Fig. 4 indicated only by dotted line and with the drive wheel 110.1 of the drive 110 is connected to the mounted on the pin 112 driven sprocket of the left cutting roller 120 to give the necessary bias.
  • the chain tension is essentially made by the "tilting bearing" of the drive.
  • the adjustable stop 109 is also designed as a damping element, so that acting on the drive load peaks can be intercepted.
  • the drive for the second, right cutting roll 130 is similar to the previously described drive. This
  • the first cutting unit 100 comprises four work rolls, the cutting rolls 120 and 130 and the feed rolls 140 and 150.
  • the two cutting rolls 120 and 130 are, lying parallel to each other, below the other two work rolls, the feed rolls 140 and 150 arranged.
  • Each of the two solid steel cutting rollers 120 and 130 has a plurality of spaced cutting discs 121 and 131, respectively.
  • the cutting rollers 120 and 130 are, as viewed in the longitudinal direction, arranged offset to one another, so that the cutting discs 121 of the left cutting roller 120 meshing with the existing between the spaced cutting discs 131 of the right cutting roller 130 gaps and vice versa, the cutting discs 131 in the gaps between the Cutting discs 121.
  • the overhead feed rollers 140 and 150 are also aligned parallel to one another and laterally offset relative to the respective cutting roller 120 or 130 in the direction of the front side part 103 or 104.
  • the feed rollers 140 and 150 are provided with a plurality of feed knives 143 and 153, respectively Spacers 144 and 154 spaced from each other on the respective take-up shaft 141 and 151 are lined up. These feed rollers 140 and 150 are also arranged so that they do not mesh with the respective cutting discs 121 and 131 of the respective associated cutting roller 120 and 130, respectively.
  • the drive for the right feed roller 150 is also provided on the side portion 102 side of the frame.
  • a drive wheel 113.1 is arranged, which is engaged with the mounted on the take-up shaft 151 of the right feed roller 150 driven wheel 113.2.
  • a common scraper is shown / scraper comb, the right scraper 117 and the left scraper 116, respectively.
  • each scraper 116 and 117 recesses are provided, which are respectively associated with the core diameters 122 and 132 and preferably enclose the core diameter 122 and 132 in the form of a half shell.
  • the end portions of the wiper tines of these wipers are preferably formed acute-angled.
  • the left scraper 116 and the right scraper 117 are supported with their lower portions 118 and 119 by a respective support rod 14 and with their upper portions in each case by a support strip 15.
  • the support rods 14 and the support strips 15 are themselves locked between and on the side parts 101 and 102 of the frame.
  • FIG. 6 is the cutting unit 100 in side view in section "BB" as shown in FIG FIG. 4 shown.
  • the side part 102 Between the front side parts 103 and 104, the side part 102 can be seen.
  • the cutting rollers 120 and 130 are mounted, in each case the bearing journal of these cutting rollers can be seen here.
  • the feed rollers 140 and 150 Above this pair of cutting rollers, the feed rollers 140 and 150 are supported; at 141 and 151, the take-up shafts of the feed rollers 140 and 150, respectively, are designated.
  • Left of the side part 103 of the drive 110 for the left cutting roller 120 is indicated.
  • the side part 102 is provided to the working space with a wear plate 16, see also the FIG. 3 , This wear plate 16 is also on the in FIG. 6 not shown side part 101 is provided.
  • the use of such wear plates 16 on the side panels allows the use of weight-reducing materials for these side panels.
  • these side parts 101 and 102 per se consist of aluminum-containing materials which are lighter but not more resistant to abrasion than the wear plates 16.
  • the side parts 101 and 102 need not be completely covered by wear plates 16, it is quite sufficient to provide these wear plates 16 only in the inlet region of the cutting unit.
  • These wear plates 16 can be made in one piece for each side part, as well as in several parts. In the FIG. 6 a multi-part design of this wear plate 16 is shown.
  • wear plate 16 For clarity, only the left in the region arranged wear plate 16 is shown. This illustrated wear plate 16 is arranged in mirror image also provided for the right part of the side part 102. As can be seen from the figure, this wear plate 16 extends down to the respective smallest roller diameter and is correspondingly recessed at its lower edge. This structural design also allows a material and thus cost savings, also is for the maintenance or repair case time-saving replacement of a worn wear plate 16 guaranteed.
  • FIG. 7 is the detail "A" from the FIG. 4 A view from above of a part of the right side of the first cutting mechanism 100 is shown.
  • the engagement of the parts of the cutting rollers 120 and 130 and the position of the feed knives 153 of the right feed roller 150 and the spacer rings belonging to the same 150 are shown 154 and the associated right scraper 117.
  • the position of the wear plate 16 on the side part 102 can be seen in plan view.
  • the drive wheel 113.1 and the driven wheel 113.2 which have already been described in detail above, can be seen.
  • each cutting disc 121 and 131 is provided with a V-shaped recess 124 and 134, respectively.
  • the cutting discs 121 of the left cutting roller 120 mesh with the cutting discs 131 of the right cutting roller 130.
  • the core diameters of the respective cutting roller are indicated at 122 and 132, respectively. Further construction details of the cutting discs 121 and 131 are in the FIGS. 8a and 8b shown.
  • the right cutting roller 130 is shown in side view; the viewing direction is from the drive 111 to the cutting roller.
  • a profiled pin 113 is provided for receiving a driven sprocket.
  • the opposite end of the right cutting roller 130 is formed as a pin 113.1, also with a profiled lateral surface, for receiving a drive wheel.
  • the area between these pins is provided with a plurality of spaced cutting discs 131.
  • the reference numeral 132 denotes the core diameter of the gap formed between two adjacent cutting disks 131.
  • the peripheral surface (lateral surface) of each cutting disc 131 is provided with a V-shaped recess 134.
  • each cutting disc is thus from the sprocket 113 ( FIG. 4 ) viewed from side view.
  • the peripheral surface (lateral surface) 133 incorporated recesses 135, in this example four recesses, cutting teeth 136 are formed.
  • each tooth 136 in the peripheral surface (lateral surface) 133rd Recesses 137 are provided, however, which have a substantially smaller depth than the cutting teeth forming recesses 135.
  • the cutting discs 121 of the left cutting roller 120 are shaped like the cutting discs 131 described above. The image of such a cutting disc 121 would therefore be a mirror image of the in FIG. 8b cutting disc 131 shown.
  • the second cutting mechanism 200 and / or the third cutting mechanism 300 is identical to the construction of the first cutting mechanism 100 described above.
  • An embodiment variant not shown in the figures is that the second cutting unit 200 and / or the third cutting unit 300 without the feed rollers 140 and 150 are executed.
  • the recesses and openings which are open in the two side parts 101 and 102 are covered by modified wear plates 16, so that the so-called working space of the cutting mechanism is closed sideways (101, 102) and on the front side (103, 104).
  • a modularly expandable shredder has emerged below the level E 3 at the shredder 1, ie in the illustrated embodiment below the lower cutting unit - the cutting unit 300 -, for example, a collecting container, a conveyor belt for receiving or transporting the crushed material or a feed chute for a so-called channel baler can be arranged; this is at the discretion of the user of the new shredder.

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

Claims (13)

  1. Destructeur de documents pour déchiqueter de grandes quantités de matériau porteur de donnés ou de grandes volumes de matériau tel que des piles de feuilles, des cartons, des classeurs, des ensembles de documents et du matériau similaire, comprenant un châssis/cadre (2), au moins deux mécanismes découpeurs ainsi que des moyens pour l'entraînement et le contrôle des mécanismes découpeurs, chaque mécanisme découpeur comprenant au moins deux rouleaux de travail,
    auxquels des racleurs sont associés, lesdits rouleaux de travail étant des rouleaux découpeurs dont les disques découpeurs ou les lames découpeurs s'engagent à la façon d'un peigne,
    caractérisé par
    un premier (100), un deuxième (200) et un troisième (300) mécanisme découpeur, où
    - chaque mécanisme découpeur (100, 200, 300) comprend un boîtier séparé, arrangé de telle sorte dans le châssis/cadre (2) que selon les travaux, i.e. selon le type de matériau du matériau de départ á broyer, au moins le deuxième ou le troisième mécanisme découpeur peut être remplacé par un mécanisme découpeur d'une autre performance ou peut être enlevé,
    - les mécanismes découpeurs (100, 200, 300) disposés l'un au-dessus de l'autre sont prévus de sorte que la sortie de produit découpé du mécanisme découpeur supérieur respectif (100; 200) sert en même temps de sortie pour le mécanisme découpeur inférieur respectif (200; 300),
    le premier mécanisme découpeur, supérieur (100), comprend quatre rouleaux de travail munis d'outillages (120, 130, 140, 150),
    deux des quatre rouleaux de travail étant réalisés respectivement de manière égale et étant en outre alignés de manière parallèle,
    où
    le pair supérieur des rouleaux de travail est réalisé en tant que rouleaux d'alimentation (140, 150) et le pair inférieur de rouleaux de travail est réalisé en tant que rouleaux découpeurs.
  2. Destructeur de documents selon la revendication 1,
    caractérisé par
    une portion de liaison en forme d'entonnoir étant prévue sous forme d'un premier entonnoir (4) entre le bord inférieur de boîtier du premier mécanisme découpeur (100) et le bord supérieur de boîtier du deuxième mécanisme découpeur (200) arrangé ci-dessous.
  3. Destructeur de documents selon la revendication 1 ou la revendication 2,
    caractérisé par
    les disques de découpage (121, 131) des rouleaux découpeurs (120, 130) de chaque paire de rouleaux découpeurs étant réalisés de manière égale, où
    - au moins un évidement (135) est travaillé dans la surface périphérique (132, 133) de chaque disque de découpage (121, 131), formant ainsi au moins une dent de découpage (136), et où
    - vu contre le sens de rotation (R) suivant chaque dent de découpage (136), d'autres évidements sont travaillés dans la surface périphérique respectif (123 ou 133) sous la forme de dépressions (137), lesdites dépressions (137) ayant une profondeur nettement inférieure à celle de l'évidement (135) précédant la dent de découpage (136).
  4. Destructeur de documents selon la revendication 3,
    caractérisé par
    les surfaces périphériques (123 ou 133) de chaque disque de découpage (121 et 131) du rouleau découpeur de gauche (120) et du rouleau découpeur de droite (130) étant en forme de V (124; 134) dans un sens orienté vers le corps.
  5. Destructeur de documents selon au moins une des revendications 1 à 4,
    caractérisé par
    un racleur/peigne racleur (116) étant associé en commun au rouleau découpeur de gauche (120) et au rouleau d'alimentation de gauche (140) et par un racleur/peigne racleur (117) étant associé en commun au rouleau découpeur de droite (130) et au rouleau d'alimentation de droite (150).
  6. Destructeur de documents selon la revendication 5,
    caractérisé par
    le racleur de gauche (116) et le racleur de droite (117) comprenant chacun deux évidements, où un de ces évidements respectifs repose contre le diamètre de coeur (122, 132) du rouleau découpeur (120, 130) ou contre le diamètre de coeur de l'arbre de réception (141, 151) du rouleau d'alimentation de gauche (140) ou du rouleau d'alimentation de droite (150), de préférence en forme de demi-coquille.
  7. Destructeur de documents selon la revendication 5 ou la revendication 6,
    caractérisé par
    le racleur/peigne racleur de gauche (116) avec ses parties inférieures (118) et le racleur/peigne racleur de droite (117) avec ses parties inférieures (119) étant supportés à une barre d'appui respective (14) fixée entre les parties latérales (101, 102) et par les parties supérieures du racleur/peigne racleur de gauche (116) et du racleur/peigne racleur de droite (117) étant retenues à des barres de soutient (15) également fixées entre les parties latérales (101, 102).
  8. Destructeur de documents selon au moins une des revendications précédentes,
    caractérisé par
    une tôle d'usure (16) étant arrangée respectivement sur les surfaces des parties latérales (102, 102) orientées dans un sens vers les rouleaux de travail.
  9. Destructeur de documents selon la revendication 8,
    caractérisé par
    les tôles d'usure (16) étant réalisées en une pièce.
  10. Destructeur de documents selon la revendication 14,
    caractérisé par
    les tôles d'usure (16) étant réalisées en plusieurs pièces.
  11. Destructeur de documents selon les revendications 8, 9 ou 10,
    caractérisé par
    les tôles d'usure (16) couvrant seulement en partie la surface intérieure des parties latérales (101, 102).
  12. Destructeur de documents selon les revendications 1 ou 2,
    caractérisé par
    le premier mécanisme découpeur supérieur (100) étant réalisé au moins selon une des revendications 3 à 16 et par les autres mécanismes découpeurs (200 et/ou 300) arrangés au-dessous du mécanisme découpeur (100) comprenant seulement un pair de rouleaux de travail, le rouleau découpeur de gauche (120) et le rouleau découpeur de droite (130) avec des racleurs associés.
  13. Destructeur de documents selon la revendication 12,
    caractérisé par
    les racleurs prévus étant adaptés selon au moins une des revendications 10 à 12.
EP03002761.9A 2002-02-06 2003-02-06 Destructeur de documents Expired - Lifetime EP1334771B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10205688 2002-02-06
DE10205688 2002-02-06

Publications (2)

Publication Number Publication Date
EP1334771A1 EP1334771A1 (fr) 2003-08-13
EP1334771B1 true EP1334771B1 (fr) 2016-12-07

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EP03002761.9A Expired - Lifetime EP1334771B1 (fr) 2002-02-06 2003-02-06 Destructeur de documents

Country Status (3)

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US (1) US20040104289A1 (fr)
EP (1) EP1334771B1 (fr)
DE (1) DE10304940A1 (fr)

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JP2004141854A (ja) * 2002-08-28 2004-05-20 Fuji Xerox Co Ltd シュレッダ装置およびその方法
US20060049291A1 (en) * 2004-09-08 2006-03-09 Rajewski David E Blade system for a shredding apparatus
DE102007049028B4 (de) * 2007-10-11 2016-08-18 Jbf Maschinen Gmbh Zerkleinerungseinheit mit mindestens zwei Schneidwerken
DE202009013428U1 (de) * 2009-10-05 2011-03-03 Schwelling, Hermann Aktenvernichter mit Metallerkennung
CA2709258C (fr) * 2010-07-08 2018-01-23 Shred-It International Inc. Dechiqueteuse a papier a trois etages
CN102463179B (zh) * 2010-11-02 2013-12-11 北京和升达信息安全技术有限公司 碎纸机
AU2012206372B2 (en) 2011-01-14 2015-10-01 Shred-Tech Corporation Shredding recyclable material containing information
DE102012100681B4 (de) 2012-01-27 2022-09-01 Hermann Schwelling Aktenvernichter mit Turbofunktion
WO2013167497A2 (fr) * 2012-05-07 2013-11-14 Erdmann Gmbh & Co. Kg Broyeuse
ES2710622T3 (es) * 2012-08-16 2019-04-26 Lindner Recyclingtech Gmbh Sistema de corte de doble árbol de varios niveles
CN102896028A (zh) * 2012-09-17 2013-01-30 王雪芬 一种碎纸机的机芯
JP5919324B2 (ja) * 2014-05-08 2016-05-18 株式会社サカエ 細断ユニット及びこれを用いたシュレッダ、シート状物処理装置
DE202015009629U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Anlage zur Aktenvernichtung
DE102014016920A1 (de) * 2014-11-17 2016-05-19 Giesecke & Devrient Gmbh Vorrichtung zum Schreddern von Wertdokumenten
CN110339925A (zh) * 2019-07-10 2019-10-18 大连恒康电子有限公司 高保密碎纸机的机芯组件
WO2023062546A1 (fr) * 2021-10-11 2023-04-20 Odwyer Brendan Déchiqueteur rotatif

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Publication number Publication date
EP1334771A1 (fr) 2003-08-13
DE10304940A1 (de) 2003-08-14
US20040104289A1 (en) 2004-06-03

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