EP1016461A2 - Dispositif de coupe pour destructeur de documents - Google Patents

Dispositif de coupe pour destructeur de documents Download PDF

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Publication number
EP1016461A2
EP1016461A2 EP99125207A EP99125207A EP1016461A2 EP 1016461 A2 EP1016461 A2 EP 1016461A2 EP 99125207 A EP99125207 A EP 99125207A EP 99125207 A EP99125207 A EP 99125207A EP 1016461 A2 EP1016461 A2 EP 1016461A2
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting device
housing
document
shredder according
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
EP99125207A
Other languages
German (de)
English (en)
Other versions
EP1016461A3 (fr
EP1016461B1 (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
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
Priority claimed from DE19960666A external-priority patent/DE19960666A1/de
Application filed by Individual filed Critical Individual
Publication of EP1016461A2 publication Critical patent/EP1016461A2/fr
Publication of EP1016461A3 publication Critical patent/EP1016461A3/fr
Application granted granted Critical
Publication of EP1016461B1 publication Critical patent/EP1016461B1/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
    • B02C2018/0046—Shape or construction of frames, housings or casings

Definitions

  • the invention relates to a cutting device for document shredders, especially for office shredders.
  • a document shredder is from the prior art known from DE 39 07 282 A1, at which a first bearing plate the mounting location for the flanged Electric motor, the roller bearings on the drive side of the cutting rollers and one for a rolling bearing Reduction level is.
  • a metal one additional bearing plate - in the form of a half-shell - mounted on the first bearing plate.
  • another half-shell-shaped bearing plate screwed the first bearing plate.
  • This second half-shell shaped Bearing plate is for the sake of Soundproofing made from a (soft) plastic.
  • the first bearing plate is very thick-walled because of it the rolling bearings essentially in their full width records.
  • the first bearing plate is to be attached via connecting struts with another - not shown there - Bearing plate connected.
  • the two put on half-shell-shaped bearing plates do not wear to the rigidity of the entire gearbox, because they do not cover the entire area of the cover the first bearing plate and because the second half-shell-shaped Bearing plate also made of a plastic is.
  • the transmission designed to be exchangeable for the exchange of cutting units.
  • the drive unit includes the motor and a first one Gear stage; the pair of cutting rollers with his The cutting unit forms the second gear stage.
  • the Gearbox with the engine is off, for example Made of plastic. Because of the divisibility and the associated assembly game and because part of the Gearbox is made of plastic, this gearbox construction do not absorb significant torsional forces. In addition, the separability can increase susceptibility to contamination.
  • DE 40 08 654 A1 is an office document shredder known, the two-part injection molded plastic housing has, the upper housing part as a cover that can be placed on the lower housing part is designed and the lower part of the housing mostly web-shaped wiper elements including the Cutting roller bearings in an integrated design includes. This results in all assembly friendliness however, the disadvantage that these devices are very restless run and are relatively loud because everyone is Drive and work noises as vibrations on the still as a reinforcing soundboard acting housing transferred.
  • This small paper shredder consists of a bowl-like, the cutting rollers together with their front storage spaces and wiper elements containing lower housing part and mountable on it, with a material feed gap provided upper housing part, in particular a Cutting unit with a gear housing and one drive motor arranged thereon as a structural unit below Interposition of damping elements in the aforementioned Lower housing part is stored.
  • This document shredder has a special construction still provided that the drive side Bearing plate for the cutting rollers also the one-piece Bottom of a bowl-like, through forms a lockable gear housing. What is disadvantageous about this constructive solution is that for the use of more powerful engines an increased Material use is necessary because of the wall thickness of the gear housing must be enlarged.
  • the gearbox housing is initially designed in the form of a box that is open on one side and as straight as possible.
  • the straight surface prevents, for example, the gearbox boundary walls from buckling, also and especially when there are no stiffening ribs.
  • the gear cover for this assembly opening contrary to the closest prior art design according to the generic DE 195 45 087 A1, is a plate that is as free of curvature as possible; the same can also be connected to the open box part of the gear housing by means of a positive fit.
  • the straightness of the gear boundary walls and the curvature-free plate essentially absorb the torsional thrust in the housing; the positive effect of the connection of the plate with the box part of the gear housing is further enhanced.
  • This positive fit is achieved, for example, by means of molded cams on the box-shaped housing and precisely fitting recesses in the plate.
  • At least one fixing screw for the plate also ensures an at least sufficient frictional connection.
  • this new unit is from an engine, Gearbox with a specially designed gearbox (including the reduction included therein), Cutting roller drive, cutting rollers, together with their Wiper elements, and the radial, rotatable coupling the cutting rollers at their other end, one functional, inexpensive to manufacture and also extremely torsion-resistant, compact unit, the overall here as a cutter for shredders referred to as.
  • the box-shaped housing part instead of the straight surfaces of the walls of the gearbox housing, the box-shaped housing part, at least the wall in question, in particular the wall on the drive side, is made of metal, preferably is a part of the housing produced by injection molding. which consists in particular of a magnesium alloy.
  • the advantages are that, unlike plastics, it cannot be electrically charged and therefore does not attract cutting dust electrostatically, is not only extremely strong, but also has a low weight and the raw material for the alloy can also be produced using environmentally friendly processes. For this reason, this material is also very suitable for scrapers, a 'mass article' on cutting units for document shredders.
  • Another design detail of the invention is the elevation of the side walls, thus around the longitudinal axis around the gearbox, an approximately square one Cross section arises.
  • the plate is also also abutments for those located in the gearbox Can contain axes.
  • Plastic POM has the advantage that, despite its lower density has good sliding and thus good storage properties.
  • FIG. 1 schematically shows a newly designed cutting unit 1 according to the invention, with a gear group and a pair of cutting rollers 9/12.
  • the entire, compact cutting mechanism 1 is shown removed from the shell-like housing of the document shredder in this view.
  • a motor 2 is attached to a box-shaped housing part 3 of a gear housing 5.
  • the box-shaped housing part 3 is closed with a curvature-free plate 4 which here forms the gear cover.
  • a pinion 6 of the motor 2 first transmits the power to a reduction group 7 of the transmission group.
  • a gear wheel 8 transmits the drive power to a cutting roller 9.
  • a pinion 10 on the drive axis / shaft of the cutting roller 9 also transmits the driving force to a gear wheel 11 of a cutting roller 12.
  • the cutting rollers 9 and 12 are opposed to one another.
  • An abutment 13 absorbs the radial forces of the ends of the cutting rollers 9 and 12 facing away from the gear 5.
  • a comb-like stripper 14 is arranged on the side of the cutting rollers 9 and 12 facing away from the paper feed. This scraper, which is only indicated here by way of example, clears the grooves of the cutting rollers 9 and 12.
  • FIG. 2 shows the box-shaped housing part 3 very clearly. Its upper edge 15 is essentially flat, so that the preferably curvature-free plate 4 can rest well sealed.
  • the cams 16 molded onto the housing edge 15 permit the positive connection with the recesses of the plate 4, not shown here.
  • a stud 17a serves to receive a fastening screw for the plate 4.
  • the dimension 18 indicates the maximum height of the stiffening ribs, this dimension 18 not exceeding the inward-facing end edges of the hubs 25, 26 and 27 of the bearings 22, 23 and 24.
  • FIG. 3 shows the arrangement of stiffening ribs 19 as well as their connection to the hubs 25, 26 and 27 and the side walls of the box-shaped housing part 3.
  • the placement of further stud bolts 17b and 17c for the optional attachment of the plate 4 can be seen here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP19990125207 1998-12-18 1999-12-17 Dispositif de coupe pour destructeur de documents Expired - Lifetime EP1016461B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19858596 1998-12-18
DE19858596 1998-12-18
DE19960666 1999-12-15
DE19960666A DE19960666A1 (de) 1998-12-18 1999-12-15 Schneidwerk für Aktenvernichter

Publications (3)

Publication Number Publication Date
EP1016461A2 true EP1016461A2 (fr) 2000-07-05
EP1016461A3 EP1016461A3 (fr) 2001-03-07
EP1016461B1 EP1016461B1 (fr) 2003-05-14

Family

ID=26050855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990125207 Expired - Lifetime EP1016461B1 (fr) 1998-12-18 1999-12-17 Dispositif de coupe pour destructeur de documents

Country Status (2)

Country Link
EP (1) EP1016461B1 (fr)
ES (1) ES2198842T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016070948A1 (fr) 2014-11-07 2016-05-12 Akten-Ex Gmbh & Co Kg Destruction de papier écrit

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010681A1 (fr) 1978-10-19 1980-05-14 Günter Trautmann Appareil pour le découpage ou le broyage de papier, carton, microfilms ou analogues
DE3907282A1 (de) 1989-03-07 1990-09-13 Hermann Schwelling Aktenvernichter mit den schneidwalzen zugeordneter antriebseinheit
DE4003222C1 (fr) 1990-02-03 1991-04-18 Pbs-Servicegesellschaft Mbh & Co. Kg, 3000 Hannover, De
DE4008654A1 (de) 1990-03-17 1991-09-19 Schleicher & Co Int Dokumentenvernichter und behaelter als unterkonstruktion dafuer
US5163629A (en) 1991-05-01 1992-11-17 Cummins-Allison Corp. Shredder cutting discs
DE19545087A1 (de) 1995-12-04 1997-06-05 Hermann Schwelling Klein-Aktenvernichter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315320A (en) * 1970-09-12 1973-05-02 Brierley Z Shredder
CN1089211A (zh) * 1992-03-24 1994-07-13 孔凯旋 高镁玻璃钢蜂窝板加工工艺及其产品

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010681A1 (fr) 1978-10-19 1980-05-14 Günter Trautmann Appareil pour le découpage ou le broyage de papier, carton, microfilms ou analogues
DE3907282A1 (de) 1989-03-07 1990-09-13 Hermann Schwelling Aktenvernichter mit den schneidwalzen zugeordneter antriebseinheit
DE4003222C1 (fr) 1990-02-03 1991-04-18 Pbs-Servicegesellschaft Mbh & Co. Kg, 3000 Hannover, De
DE4008654A1 (de) 1990-03-17 1991-09-19 Schleicher & Co Int Dokumentenvernichter und behaelter als unterkonstruktion dafuer
US5163629A (en) 1991-05-01 1992-11-17 Cummins-Allison Corp. Shredder cutting discs
DE19545087A1 (de) 1995-12-04 1997-06-05 Hermann Schwelling Klein-Aktenvernichter
US5893524A (en) 1995-12-04 1999-04-13 Schwelling; Hermann Paper shredder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016070948A1 (fr) 2014-11-07 2016-05-12 Akten-Ex Gmbh & Co Kg Destruction de papier écrit
DE202015009629U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Anlage zur Aktenvernichtung
DE202015009627U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Papier aus einer Aktenvernichtung
DE202015009626U1 (de) 2014-11-07 2018-11-15 Akten-Ex Gmbh & Co. Kg Aktenvernichter

Also Published As

Publication number Publication date
EP1016461A3 (fr) 2001-03-07
ES2198842T3 (es) 2004-02-01
EP1016461B1 (fr) 2003-05-14

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