EP0818241B1 - Déchiqueteur de documents - Google Patents

Déchiqueteur de documents Download PDF

Info

Publication number
EP0818241B1
EP0818241B1 EP97110711A EP97110711A EP0818241B1 EP 0818241 B1 EP0818241 B1 EP 0818241B1 EP 97110711 A EP97110711 A EP 97110711A EP 97110711 A EP97110711 A EP 97110711A EP 0818241 B1 EP0818241 B1 EP 0818241B1
Authority
EP
European Patent Office
Prior art keywords
switch
switching element
document shredder
motor
electronic switching
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
EP97110711A
Other languages
German (de)
English (en)
Other versions
EP0818241A1 (fr
Inventor
Jens Erlecke
Jürgen Pechar
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 EP0818241A1 publication Critical patent/EP0818241A1/fr
Application granted granted Critical
Publication of EP0818241B1 publication Critical patent/EP0818241B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • 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
    • B02C2018/0023—Switching devices

Definitions

  • the invention relates to a document shredder with a by an electric motor driven cutting unit and one if necessary, the switch for the electric motor operated by the material to be cut.
  • Such document shredders are e.g. from the document DE-A-3819285 known.
  • Such document shredders including shredders for all kinds of flat material, waste or the like are understood either by mechanical switches or of light barriers, touch switches or the like set and switched off again.
  • Electric motors used in units are mostly single-phase AC motors or universal motors, i.e. Commutator motors. Their activation generates a current spike that affects the supply network and on the other hand also Caused radio interference. Certain such disorders will occur mostly accepted when they have a certain number in one do not exceed the specified time unit. If those "Click rate" but due to the high performance and the possibility successive numerous single sheets in one Entering document shredders that rise too high must be here be remedied.
  • Interference suppression devices that eliminate these interference or their Eliminating effects is very complex and often economical for small devices that are particularly high Cause crack rate, hardly portable.
  • the object of the invention is therefore a document shredder of the type mentioned at the beginning, in which the Problem of network interference and radio interference on possible simple or inexpensive way eliminated or at least is improved.
  • This object is achieved in that the Switch for the electric motor and a phase detector containing variable delay circuit activated, the an electronic switching element provided in the motor circuit for switching in the zero crossing of the mains voltage controls.
  • the switch that triggers the operation i.e. either on mechanical, manually operated switch, one of the Micro-operated switch or an output switch a light barrier control does not switch the motor directly. Rather, the circuit is used to activate a Phase detector used, e.g. the next zero crossing the mains voltage and then switches on the motor.
  • the motor voltage therefore runs together with the mains shaft high and causing radio interference or network interference No voltage peak. It will not, as with a normal interference suppression that eliminates the interference that arises, but it becomes the cause of a disturbance, namely the Voltage spike, avoided. Special suppressors can So if the engine does not malfunction even when running caused.
  • the delay circuit would be of one corresponding follower of the light barrier control for a delayed switch-off can be activated.
  • the electronic switching element can, for example, by a Bridge rectifier can be realized by one in the Bridge diagonal lying transistor is controlled.
  • Phase detector can be a comparator responsive to "zero volts" be used.
  • a shredder 11 includes a cutter 12 Cutting rollers 13, whose toothed cutting disks 14 intermesh and thus a material to be cut 15 in strips or can cut particles 16.
  • a mechanical, manually operable pre and Reverse switch 17 provided and on the other hand a light barrier circuit, the sensors 18 on a feed chute 19 of the document shredder and a corresponding light barrier control 20 has. This gives an output signal that starts the motor 21 driving the cutting rollers and, possibly via a delay element after a lag phase of for example 2 seconds, switches off again after the end of the material to be cut 15 has passed the light sensor 18.
  • the motor is a Single-phase AC motor (asynchronous motor) with one Capacitor enabling start-up 22. But it could also be a Universal motor, i.e. a collector series motor is provided his.
  • an electronic switching element 23 determines that in series with the motor branch of the mechanical switch 17 in the Power supply to the motor is. It is about a bridge rectifier 24 containing four diodes, in whose bridge diagonal a transistor 25 is arranged. He is driven by a phase detector 26, which is part of a variable delay circuit 27, which is controlled by the light barrier 20 is activated.
  • the machine With the switch 17, the machine is ready for operation switched.
  • the switch 17 closes the circuit to the motor M. If a cutting material 15 is now fed to the machine, there are the light barrier control 20 ON signal to the variable Delay circuit 27.
  • the phase detector 26 now determines the next zero crossing of the mains voltage and switches in the transistor 25 at this moment.
  • the rectifier 24 is activated and the engine 21 starts to work.
  • the voltage and current rise in the motor is corresponding the sinusoidal rise of the mains wave gently and generates no voltage peaks due to the in the motor and other parts of the device containing inductors or Capacities.
  • a follow-up time for example started two seconds. If this is finished, so gives the light barrier control 20 of the variable delay circuit the OFF signal.
  • the phase detector determines again the next zero crossing of the mains voltage and turns off transistor 25 at this time.
  • the Rectifier 24 is deactivated and the document shredder is switched off.
  • the one from the variable delay circuit The on and off delay caused is therefore from the time of the signal triggering the process (e.g. addressing the Light barrier) in relation to the mains frequency cycle and is usually between zero and one hundredth Second.
  • switching elements are also electronic switching elements such as thyristors, TRIAC, IGBT's etc. possible. It should be an electronic switching element that is at zero crossing is switchable or if it is a different structure Relay is acting, should the delay circuit Proper time of the relay are taken into account.
  • the invention therefore does not normally need to be minimized RC filters or LC filters used by interference and nevertheless avoids EMC interference.

Landscapes

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

Claims (5)

  1. Déchiqueteur de documents avec un mécanisme de coupe (12) entraí né par un moteur électrique (21), et un commutateur (18, 20) actionné éventuellement par le matériel à couper (15), pour le moteur électrique (21), caractérisé en ce que le commutateur (18, 20) active un circuit à retardement (27) variable contenant un détecteur de phase (26), circuit qui commande un organe de commutation (23) électronique prévu dans le circuit électrique du moteur, pour la commutation au moment du passage par zéro de la tension de réseau.
  2. Déchiqueteur de documents d' après la revendication 1, caractérisé en ce que le circuit à retardement (27) variable est activé par une commande de barrière photoélectrique (20), éventuellement avec un élément de suite de course supplémentaire pour une interruption de circuit retardée.
  3. Déchiqueteur de documents d' après la revendication 1 ou 2, caractérisé en ce qu' avec l' élément de commutation (23) électronique un commutateur (17) mécanique est associé de telle manière que le moment temporel de commutation est déterminé par l' élément de commutation, et qu' il est branché de préférence en série.
  4. Déchiqueteur de documents d' après une des revendications précédentes, caractérisé en ce que l' élément de commutation (23) électronique contient un redresseur en pont de Graetz (24) avec un commutateur électrique à commander par le circuit à retardement (27) variable, par exemple un transistor (25).
  5. Déchiqueteur de documents d' après une des revendications précédentes, caractérisé en ce que l' élément de commutation (23) électronique est prévu au lieu d' éléments antiparasitage de moteur.
EP97110711A 1996-07-09 1997-07-01 Déchiqueteur de documents Expired - Lifetime EP0818241B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19627599A DE19627599A1 (de) 1996-07-09 1996-07-09 Dokumentenvernichter
DE19627599 1996-07-09

Publications (2)

Publication Number Publication Date
EP0818241A1 EP0818241A1 (fr) 1998-01-14
EP0818241B1 true EP0818241B1 (fr) 2001-10-17

Family

ID=7799319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110711A Expired - Lifetime EP0818241B1 (fr) 1996-07-09 1997-07-01 Déchiqueteur de documents

Country Status (2)

Country Link
EP (1) EP0818241B1 (fr)
DE (2) DE19627599A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946514B2 (en) 2004-09-10 2011-05-24 Fellowes, Inc. Shredder with thickness detector
US7954737B2 (en) 2007-10-04 2011-06-07 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8091809B2 (en) 2009-03-24 2012-01-10 Fellowes, Inc. Shredder with jam proof system
US8201761B2 (en) 2009-01-05 2012-06-19 Fellowes, Inc. Thickness sensor based motor controller
US8205815B2 (en) 2009-05-15 2012-06-26 Fellowes, Inc. Paper alignment sensor arrangement
US8382019B2 (en) 2010-05-03 2013-02-26 Fellowes, Inc. In-rush current jam proof sensor control
US8430347B2 (en) 2009-01-05 2013-04-30 Fellowes, Inc. Thickness adjusted motor controller
US8511593B2 (en) 2010-05-28 2013-08-20 Fellowes, Inc. Differential jam proof sensor for a shredder
US8550387B2 (en) 2009-06-18 2013-10-08 Tai Hoon K. Matlin Restrictive throat mechanism for paper shredders
US8672247B2 (en) 2005-07-11 2014-03-18 Fellowes, Inc. Shredder with thickness detector
US8678305B2 (en) 2009-06-18 2014-03-25 Fellowes, Inc. Restrictive throat mechanism for paper shredders
US8870106B2 (en) 2004-09-10 2014-10-28 Fellowes, Inc. Shredder with thickness detector

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022123B1 (fr) 1999-01-21 2005-05-04 SCHLEICHER & Co. INTERNATIONAL AKTIENGESELLSCHAFT Procedé et dispositif pour la fabrication de matériaux de rembourrage et matériaux ainsi produits
DE19902227A1 (de) * 1999-01-21 2000-07-27 Schleicher & Co Int Verfahren und Vorrichtung zum Betreiben eines Elektromotors eines Dokumentenvernichters
DE10047992A1 (de) * 2000-09-28 2002-04-11 Schleicher & Co Int Ag Datenshredder mit einem über einen elektrischen Antrieb angetriebenen Schneidwerk
GB2451513B (en) 2007-08-02 2012-04-18 Acco Uk Ltd A shredding machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2045280C3 (de) * 1970-09-14 1980-09-25 Adolf 7460 Balingen Ehinger Vorrichtung zum Vernichten von Akten
US4157671A (en) * 1976-03-11 1979-06-12 Albert Goldhammer Drive for cutting rollers of paper shredding or cutting apparatus
US4192467A (en) * 1977-05-06 1980-03-11 Takefumi Hatanaka Document shredder
GB2096919B (en) * 1981-03-11 1984-12-05 Matsushita Electric Ind Co Ltd Shredder
US5041771A (en) * 1984-07-26 1991-08-20 Pt Components, Inc. Motor starting circuit
EP0200099B1 (fr) * 1985-04-19 1991-09-11 Siemens Aktiengesellschaft Circuit de commande pour un relais électromagnétique pour interrompre un circuit à courant alternatif sous charge
DE3819285A1 (de) * 1988-06-07 1989-12-14 Ehinger Adolf Eba Maschf Elektrische steuereinrichtung fuer aktenvernichter
US5164651A (en) * 1991-06-27 1992-11-17 Industrial Technology Research Institute Starting-current limiting device for single-phase induction motors used in household electrical equipment
DE4231242A1 (de) * 1992-09-18 1994-03-24 Buderus Heiztechnik Gmbh Verfahren zum Verringern des Verschleißes von elektromechanischen Relais
DE4237861A1 (de) * 1992-11-10 1994-05-11 Schleicher & Co Int Schaltung für einen Elektromotor, insbesondere für einen Antriebsmotor von Materialzerkleinerungs- oder Preßanlagen
DE4408470C2 (de) * 1993-03-22 1995-07-20 Hermann Schwelling Aktenvernichter mit schrankartigem Unterbau und haubenartigem Aufsatz

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8870106B2 (en) 2004-09-10 2014-10-28 Fellowes, Inc. Shredder with thickness detector
US7963468B2 (en) 2004-09-10 2011-06-21 Fellowes, Inc. Shredder with thickness detector
US8783592B2 (en) 2004-09-10 2014-07-22 Fellowes, Inc. Shredder with thickness detector
US7946514B2 (en) 2004-09-10 2011-05-24 Fellowes, Inc. Shredder with thickness detector
USRE44161E1 (en) 2005-07-11 2013-04-23 Fellowes, Inc. Shredder with thickness detector
US8757526B2 (en) 2005-07-11 2014-06-24 Fellowes, Inc. Shredder with thickness detector
US8672247B2 (en) 2005-07-11 2014-03-18 Fellowes, Inc. Shredder with thickness detector
US8424787B2 (en) 2007-10-04 2013-04-23 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8464767B2 (en) 2007-10-04 2013-06-18 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8500049B2 (en) 2007-10-04 2013-08-06 Fellowes, Inc. Shredder thickness with anti-jitter feature
US9044759B2 (en) 2007-10-04 2015-06-02 Fellowes, Inc. Shredder thickness with anti-jitter feature
US7954737B2 (en) 2007-10-04 2011-06-07 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8113451B2 (en) 2007-10-04 2012-02-14 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8020796B2 (en) 2007-10-04 2011-09-20 Fellowes, Inc. Shredder thickness with anti-jitter feature
US8201761B2 (en) 2009-01-05 2012-06-19 Fellowes, Inc. Thickness sensor based motor controller
US8430347B2 (en) 2009-01-05 2013-04-30 Fellowes, Inc. Thickness adjusted motor controller
US8091809B2 (en) 2009-03-24 2012-01-10 Fellowes, Inc. Shredder with jam proof system
US8205815B2 (en) 2009-05-15 2012-06-26 Fellowes, Inc. Paper alignment sensor arrangement
US8678305B2 (en) 2009-06-18 2014-03-25 Fellowes, Inc. Restrictive throat mechanism for paper shredders
US8550387B2 (en) 2009-06-18 2013-10-08 Tai Hoon K. Matlin Restrictive throat mechanism for paper shredders
US8382019B2 (en) 2010-05-03 2013-02-26 Fellowes, Inc. In-rush current jam proof sensor control
US8511593B2 (en) 2010-05-28 2013-08-20 Fellowes, Inc. Differential jam proof sensor for a shredder

Also Published As

Publication number Publication date
DE19627599A1 (de) 1998-01-15
EP0818241A1 (fr) 1998-01-14
DE59704928D1 (de) 2001-11-22

Similar Documents

Publication Publication Date Title
EP0818241B1 (fr) Déchiqueteur de documents
DE3112913C2 (de) Arbeitsverfahren zum Betrieb eines Reißwerks und hiernach betriebenes Reißwerk
DE2627883A1 (de) Verfahren und vorrichtung zur steuerung des druckes des von einer motorbetriebenen kompressoranlage abgegebenen arbeitsmediums
CH682275A5 (fr)
EP0597370B1 (fr) Machines à broyer des matériaux ou à presser avec moteur électrique.
DE102006050077A1 (de) Umrichter mit steuerbarem Phasenwinkel
DE3508204C2 (fr)
DE3900219C2 (de) Fahrzeugsitz mit motorbetriebener Verstellung der Rückenlehne und der Sitzschiene
DE4201005C2 (de) Schaltungsanordnung zum netzunabhängigen, aussetzerfreien Bremsen eines Reihenschlußmotors
EP0045951A2 (fr) Procédé pour mettre en marche un convertisseur ayant un circuit intermédiaire à courant continu alimentant un moteur électrique synchrone
DE2060641C3 (de) Antriebsanordnung für ein in einer vorbestimmten Lage stillzusetzendes Organ
WO2007134605A1 (fr) Procédé pour démarrer un moteur électrique et circuit de démarrage pour un moteur électrique
DE2431123A1 (de) Steuervorrichtung fuer pressen
DE2938625A1 (de) Schaltungsanordnung zum energiesparen
DE3501947C2 (fr)
DE3034501C2 (de) Geregelte rückspeisende Gleichspannungsversorgung
DE3022866A1 (de) Einrichtung zur ueberwachung, steuerung und regelung des gleichlaufes zweier oder mehrerer antriebe
DE2631418A1 (de) Vorschaltgeraet zur strombegrenzung, insbesondere bei elektrowerkzeugen
DE2522634A1 (de) Ablaengmaschine fuer draht und schlauchfoermiges gut
AT1691U1 (de) Leistungsregler, insbesondere für einphasen-wechselstrommotoren, wie lüftermotoren für ohmsche heizwiderstände oder dergleichen
DE2747118A1 (de) Taschenfalzmaschine
EP0043138B1 (fr) Dispositif de commutation électronique pour machines à courant continu avec plusieurs brins d'enroulement
DE3146225A1 (de) Elektrowerkzeug mit absaugvorrichtung
DE2415138C3 (de) Anordnung zur Drehzahlsteuerung eines Universalmotors
DE4228858A1 (de) Einrichtung zur Drehzahlsteuerung von Wechsel- oder Drehstrommotoren

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): DE FR GB

17P Request for examination filed

Effective date: 19980617

AKX Designation fees paid

Free format text: DE FR GB

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20001123

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011017

REF Corresponds to:

Ref document number: 59704928

Country of ref document: DE

Date of ref document: 20011122

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

ET Fr: translation filed
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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140723

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20140724

Year of fee payment: 18

Ref country code: GB

Payment date: 20140721

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59704928

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150701

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: 20160202

Ref country code: GB

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

Effective date: 20150701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160331

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: 20150731