EP1364712A1 - Outil de coupe pour destructeur de documents - Google Patents

Outil de coupe pour destructeur de documents Download PDF

Info

Publication number
EP1364712A1
EP1364712A1 EP03011513A EP03011513A EP1364712A1 EP 1364712 A1 EP1364712 A1 EP 1364712A1 EP 03011513 A EP03011513 A EP 03011513A EP 03011513 A EP03011513 A EP 03011513A EP 1364712 A1 EP1364712 A1 EP 1364712A1
Authority
EP
European Patent Office
Prior art keywords
cutting
projections
clearing
rollers
disks
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.)
Withdrawn
Application number
EP03011513A
Other languages
German (de)
English (en)
Inventor
Helmut Maier
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.)
Schleicher and Co International AG
Original Assignee
Schleicher and Co International AG
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 Schleicher and Co International AG filed Critical Schleicher and Co International AG
Publication of EP1364712A1 publication Critical patent/EP1364712A1/fr
Withdrawn legal-status Critical Current

Links

Images

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 cutter for a document shredder according to the preamble of claim 1.
  • Such cutting units or document shredders have two Cutting rollers on which cutting discs or cutting disc-like and alternately have interlocking sections.
  • the invention is based, an object mentioned To create the cutting unit, with which on any cutting roller Removal of cut particles is guaranteed.
  • the clearing means have projections which reach between the cutting rollers or cutting disks and circulate or rotate. This means that relative to the cutting rollers or Cutting discs not the projections rigid and fixed, but so are trained to move. This has the advantage that Removing the particles not only the movement or rotation of the Cutting rollers, but also used the movement of the projections themselves can be. This is a more efficient way of removing the particles possible.
  • the protrusions can be cut while rotating Particles between the cutting disks, so to speak scratch or tear out.
  • the clearing means and thus also the projections can be advantageous have a shape corresponding to the cutting disks.
  • the projections in particular can be so wide like the space between two cutting discs.
  • a similar small distance or air gap can also be in the radial direction be provided. This means that the clearing agents or Protrusions almost to the bottom of the cutting rollers between the Cutting discs can be enough. Direct concern increases in many cases the friction and should be avoided.
  • the clearing means can be round and disk-like, preferably like a cylinder.
  • the clearing means can be round and disk-like, preferably like a cylinder.
  • rollers as clearing agents can, similarly as described above for the cutting rollers themselves, several disks can be put together with clearing agents.
  • the clearing means can have a plurality of projections exhibit. This has the advantage of having a head start a clearing process is initiated.
  • the clearing means in the direction of circulation each have a plurality of protrusions, for example ten to thirty.
  • the distance between the projections is advantageous in each case equal.
  • the distance between the projections should also be in the circumferential direction not too big for each other, so that on the one hand a sufficiently large one Number of projections can be provided. This is about make sure that the projections are stable enough.
  • the projections or each projection preferably have a clearing edge on, which is particularly preferred together with the projection in is about claw-like.
  • the clearing edge or the claw formed thereby the projection points in the circumferential direction so that it is in the cutting disks intervenes and accumulates in it like a claw Can tear out particles.
  • the clearing edge is particularly advantageous both the first area of the protrusion when engaging in a Cutting roller as well as the outermost area in circulation or in terms of the circumferential contour of the protrusions or the clearing means. This ensures that the clearing edge in particular accumulates Attacks particles.
  • the Räumkanten or the entire protrusions jagged or rough be trained.
  • the clearing edges are preferably essentially straight. You can in particular parallel to the longitudinal axis of the cutting rollers run.
  • the incisions can have a semicircular shape.
  • the incisions can advantageously have a recessed semicircular shape. This means that the incisions start with a certain start constant width and then a rounded or circular End.
  • the projections can be made substantially identical to one another his. Furthermore, they can be symmetrical, wherein this is to be understood in and against the direction of rotation. This means, that the clearing means regardless of the direction of circulation reach with similar protrusions between the cutting discs can.
  • the evacuation means due to friction or concerns be moved on the rotating cutting rollers.
  • the clearing means are powered.
  • Such a drive can particularly advantageous via the same drive as for at least one the cutting rollers as well as gears or a gear. On this way is a more dimensioned for the cutting rollers Provide drive. On the other hand, it can have its own separate drive be saved.
  • the speed refers to the external speed or the rotational speed. This means that the clearance effect can be reinforced.
  • the cutting disks and / or the clearing means can be made of metal be made. Steel or tool steel is usually suitable for this on.
  • the cutting disks can be solid and for example by unscrewing it from a solid roller body are manufactured.
  • the clearing agents can also be produced his. Such clearing agents are particularly advantageous in Cutting units or cutting rollers used for a very narrow cut very small cutting wheel spacings, for example in the range of less than two millimeters.
  • Fig. 1 is a cutter 11 of a document shredder in section shown.
  • the cutting rollers 12a left and 12b right are as is also clear from Fig. 3, from cutting disks 13a and 13b and one roll core 14a and 14b each.
  • the cutting discs 13a and 13b have projections formed in a known manner. This is familiar to the person skilled in the art and need not be explained in more detail here to become. Are between the cutting disks 13, as shown in FIG is recognizable, there are spaces in between. They reach into these Broaching rollers 16a and 16b with the projections 19a and 19b of the broaching discs 18a and 18b.
  • both the cutting rollers 12 and the clearing rollers 16 designed to correspond to each other. This means she grip, like the cutting rollers 12, alternately with each other into each other.
  • the projections 19 of the clearing disks 18 or the clearing rollers 16 are, as can be clearly seen from Fig. 1, by incisions 20 in a otherwise a circular disc is formed.
  • the incisions are 20th with a slightly recessed profile that is semicircular on the bottom. This makes it possible, for example, to manufacture them with a round milling cutter.
  • the projections 19 have clearing edges 21, which on the one hand Rotation of the clearing rollers 16 first in the space between the Engage cutting disks 13. This allows the clearing effect caused by the claw function of the projections 19 with the Räumkanten 21, improve.
  • the lateral or axial Distance between cutting disks 13 and clearing disks 18 or Projections 19 should be such that there is a certain air gap or they rub against each other only marginally.
  • the distances should be or air gaps in the axial and radial directions are not too large, so that not too many particles can hold on.
  • the cutting rollers 12 each rotate in opposite directions.
  • the associated clearing rollers 16 rotate again in the same direction with the associated cutting roller. This has to Consequence that in the area of engagement between clearing roller 16 and Cutting roller 12 to each other in opposite directions run past and thus clear out the clearing edges 21 cut particles can.
  • the peripheral speeds the broaching rollers 16 may be higher than those of the cutting rollers 12th
  • the clearing rollers Turn in the same direction with the respective cutting rollers. Then however, the speed of the clearing rollers should be higher, so that the projections 19 in the circumferential direction through the spaces move between the cutting disks 13 for clearing of cut particles.
  • the clearing rollers 16a and 16b are configured such that they have no preferred direction of rotation.
  • the projections 19 offer the same in both directions of rotation Profile. This makes it possible to use a single type of broaching roller 16 get along.
  • projections 19 are shown in FIG remove.
  • the projections 19c are in the circumferential direction pointing claws. These claws open into the clearing edges 21c.
  • the projections 19d are directly claw-like educated. However, they run from the roll core 17 with approximately the same width and are shown by the dashed lines Circumferential contour of the clearing roller 16 limited. They also flow into a clearing edge 21d.
  • the projections 19e are essentially triangular, likewise the incisions 20e between them.
  • the top of the triangle will formed by the clearing edges 21g.
  • These types of protrusions show no or very little claw function. Still can with a certain clearing effect can also be achieved.
  • the advantage of such Protrusions 19e can be, for example, particles removed do not get caught on the protrusions and thus the clearing rollers 16 in turn are not clogged.
  • the projections 19f in turn are in the manner of protruding rectangles or squares and are formed by the orbital contour limited. They have a clearing edge 21f.
  • the bottom of the incisions 20f differs from those incisions 20a and 20b from Fig. 1 differently in that it is just formed is.
  • the projections 19e and 19f Direction of rotation formed according to the projections 19a and 19b.
  • the cutting roller 12 or the clearing roller 16 can be solid.
  • the cutting disks 13 or the clearing disks 18 of projection-like Sections of the massive rolls, which are from the roll cores 14 and 17 stand out.
  • Whether the cutting rollers 12 or the clearing rollers 16 solid or made individual slices are formed depends on different circumstances from. Especially with particularly narrow cutting disks to perform a particularly fine particle cut is both the provision of the above-mentioned clearing rollers as well as the structure advantageous from individual slices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP03011513A 2002-05-21 2003-05-21 Outil de coupe pour destructeur de documents Withdrawn EP1364712A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10223084 2002-05-21
DE10223084 2002-05-21

Publications (1)

Publication Number Publication Date
EP1364712A1 true EP1364712A1 (fr) 2003-11-26

Family

ID=29285672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03011513A Withdrawn EP1364712A1 (fr) 2002-05-21 2003-05-21 Outil de coupe pour destructeur de documents

Country Status (1)

Country Link
EP (1) EP1364712A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8321525U1 (de) * 1982-07-27 1983-10-27 Hasenbichler, Christian, 5431 Kuchl Vorrichtung zum zerkleinern von abfall
DE3234485A1 (de) * 1982-09-17 1984-03-22 Karl 8332 Massing Ackermann Zerkleinerungsvorrichtung fuer abfall

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8321525U1 (de) * 1982-07-27 1983-10-27 Hasenbichler, Christian, 5431 Kuchl Vorrichtung zum zerkleinern von abfall
DE3234485A1 (de) * 1982-09-17 1984-03-22 Karl 8332 Massing Ackermann Zerkleinerungsvorrichtung fuer abfall

Similar Documents

Publication Publication Date Title
DE2130503C3 (de) Aus Segmenten bestehender Mahlscheibenring zum Zerfasern von Fasermaterial
DE2507202B2 (de) Verfahren und Vorrichtung zur kontinuierlichen Trennung einer Feststoffeenthaltenden Flüssigkeit in eingedickten Schlamm und ein Filtrat
DE3313103A1 (de) Schneideinrichtung fuer vorrichtungen zum zerkleinern von zerkleinerungsgut aus flachmaterial oder flachmateriallagen, wie dokumenten etc.
DE2061703A1 (de) Rollenschneidvornchtung
DE1427702A1 (de) Walzenfraeser
DE2450936A1 (de) Vorrichtung zum zerstueckeln von zu vernichtendem sperrgut
EP0287847B1 (fr) Outil de coupe
DE19610048A1 (de) Schriftgutvernichter
EP1334771A1 (fr) Destructeur de documents
DE2644992C2 (fr)
DE4301787C1 (de) Messer für Fleischwölfe
DE3345754C2 (fr)
EP1364712A1 (fr) Outil de coupe pour destructeur de documents
DE2218297C3 (de) Schlagwalzenbrecher, insbesondere für die Eingliederung in einen Kratzerförderer in einem bergbaulichen Gewinnungsbetrieb
DE2811376C3 (de) Rotor für Prallmühlen, insbesondere für Sandprallmühlen
DE2051756B2 (de) Vorrichtung zum Zerkleinern von Abfall
DE102012020522A1 (de) Verfahren und Vorrichtung zum Abtragen von Material von feuerfesten Werkstücken
DE3027486A1 (de) Verfahren und vorrichtung zum aufteilen einer platte aus spanplattenmaterial
DE19726033C2 (de) Schneidwerk für einen Dokumentenvernichter
DE599465C (de) Verfahren und Vorrichtung zur Behandlung von Teeblaettern
EP1023942B1 (fr) Dispositif déchiqueteur ayant au moins un axe rotatif
DE102018108300A1 (de) Lageranordnung sowie damit ausgestattete Bearbeitungs-Vorrichtung
EP0706828B1 (fr) Dispositif de coupe, pour déchiqueteur en particulier pour déchiqueteur de documents et procédé de réalisation d'un ensemble racleur pour celui-ci
AT369682B (de) Trennvorrichtung zum laengsteilen von langgestrecktem gut
EP3441635B1 (fr) Palier ainsi que dispositif équipé d'un tel dispositif palier

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20031128

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AXX Extension fees paid

Extension state: LV

Payment date: 20031128

Extension state: LT

Payment date: 20031128

17Q First examination report despatched

Effective date: 20070306

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070717