EP2902111A1 - Unité d'introduction de matériau en forme de feuille pour une machine à détruire les documents - Google Patents

Unité d'introduction de matériau en forme de feuille pour une machine à détruire les documents Download PDF

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Publication number
EP2902111A1
EP2902111A1 EP15152180.4A EP15152180A EP2902111A1 EP 2902111 A1 EP2902111 A1 EP 2902111A1 EP 15152180 A EP15152180 A EP 15152180A EP 2902111 A1 EP2902111 A1 EP 2902111A1
Authority
EP
European Patent Office
Prior art keywords
sheet
paper
roller
unit according
sheet material
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Withdrawn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
EP15152180.4A
Other languages
German (de)
English (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.)
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
Application filed by Individual filed Critical Individual
Publication of EP2902111A1 publication Critical patent/EP2902111A1/fr
Withdrawn legal-status Critical Current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
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2283—Feed means using rollers
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0638—Construction of the rollers or like rotary separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • 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
    • B02C18/22—Feed or discharge means
    • B02C2018/2208—Feed or discharge means for weblike material

Definitions

  • the invention relates to a unit for feeding sheet material for a shredder, in particular for feeding paper, documents and the like material, with which an automatic paper feed for the continuous intake of the sheet material takes place.
  • the sheets / papers to be shredded consist of used / used sheets.
  • the nature and condition of these sheets used, in particular their surfaces, some of which have received a partly-gliding layer, not visible but handled by hands, is such that when a sheet is automatically fed / deducted from a stack of paper a feeder more or less interference occur because adjacent leaves adhere to each other through such a layer.
  • known feeding devices for example in the DE 36 14 028 C2 , Therefore, are arranged on the feed element, the conveying roller, spiky drivers, which protrude radially from the lateral surface of the conveyor roller. In practice, these spiky drivers often pierced several leaves, so instead of a number of leaves were fed to the cutting unit, which was not wanted. This disadvantage usually occurred when, for example, the parts of the feeder were not optimally adjusted or when contrary to the intended use of the shredder relatively much thinner paper was placed.
  • a plurality of sheets may be partly stapled together with a paper clip or staple. Again, there is interference with the deduction of a sheet from the paper stack and its further promotion to the cutting unit of the shredder out.
  • the object of the invention is therefore to provide a unit for feeding sheet material for a document shredder, in particular of paper, documents or similar materials, with which the said disadvantages of the devices according to the prior art are at least minimized or eliminated.
  • this unit should be applicable for feeding with low installation costs of shredders already in use attachable or can be used on various shredders of a model series.
  • a unit for feeding sheet material for a shredder with the features of claim 1.
  • Embodiments of the unit according to the invention for feeding sheet material for a shredder are in the dependent Claims 2 to 15 and in the accompanying drawings in conjunction with the reference numerals as well as in and with the following description of the invention.
  • feeder unit The new unit for feeding sheet material for a shredder, hereafter referred to as feeder unit, is a modular assembly that can be placed on top of a shredder and applied.
  • the drive of the feed unit is preferably connected to the drive of the cutting unit of the shredder.
  • the feeder unit receives its own, self-sufficient drive.
  • the drive of the feed unit and the control unit of the shredder are electrically / electronically coupled together. With this coupling is achieved that with the operation of the power button of the shredder and a start command is given to the drive of the feed unit; Preferably, the cutter starts before driving the feeder.
  • the shredder consists of a housing.
  • the housing has a cutting mechanism on the inside, in the upper area. From the top of the housing leads to a feed slot to Cutting. Through this feed slot the material to be crushed is fed to the cutting unit.
  • a space is provided in the housing of the shredder, in which, for example, a collecting container is removably arranged. In this container the crushed by the cutting material is collected.
  • This said space can be closed by an execution of document shredders through a door, for example, as in the device for the comminution of data carriers after the DE 10 2007 034 224 A1 the applicant; the relevant page of the document shredder is usually referred to as the front page.
  • shredders form the collection container and the door a common assembly, which is usually referred to as a collection basket.
  • the collection basket is placed in the room, so that it is below the cutting unit and at the same time closes the receiving space, eg as in the device for the comminution of data carriers after the DE 10 2007 034 224 A1 of the applicant.
  • a slit-shaped exit for the conveyed sheet of paper is arranged in the feeder unit according to the invention and the Feeding unit itself arranged on top of the shredder that the subsidized paper is introduced into the supply slot leading to the cutting unit; preferably directly, for which purpose the slot-shaped outlet is shaped accordingly.
  • the feed unit consists of a base body. On the sides of the base support members are provided which are preferably releasably secured to the base body and with which the feed unit is secured to the top of the housing of the shredder. On the body are then still means for supporting / receiving a stack of sheet material, means for sheet removal and transport / conveying the successively withdrawn individually from the launched stack of paper, and preferably partly still advanced, leaves with respect to a continuous indentation in the feed slot of the Shredder arranged.
  • the means for sheet removal and transport / conveying, at least parts of them are provided according to the invention with a newly designed surface with which the static friction between the conveying element of the means and the surface of the relevant sheet of paper is increased over known devices even if it has very smooth sections due to its handling or soiling. Details about this special surface will be explained later in the description.
  • further means are provided on the means for supporting a stack of sheet material and / or on the means for sheet-by-sheet removal and transport with respect to a continuous intake, with which in or on the cutting unit supplied sheet still adhering objects, in particular staples, paper clips and the like parts to be removed during the collection of the respective sheet and before reaching the cutting unit directed towards the channel.
  • the invention closes the gap in the existing, known technique, so that even material with low adhesive properties, ie paper with soiled or greasy surface, can be reliably removed from the (laid) stack of paper and transported on a sheet-by-sheet basis.
  • This shredder whose redesigned feeder unit (also called the automatic feeder unit) pulls individual sheets from a stack of sheet material in continuous feed and leads to the cutter, has a simple structure.
  • the shredder is started, the continuous feeder begins.
  • the paper feeder of the feed unit preferably pulls from below starting one after the other individually leaves the launched stack of paper from selbigem and leads each sheet to the feed slot out.
  • a high-performance sheet feeder is created, which is characterized by a special surface texture / surface structure of the outer surface of the feed roller and / or the transport roller. Different materials such as paper, labels or foils with a rough, structured or smooth to very smooth or greased surface are reliably drawn in.
  • FIG. 1 a document shredder 1 is shown, on which a feed unit 10 according to the invention is placed.
  • the shredder consists of a housing 2, the receiving space is closed by a door 3. Behind the door 3, a collecting container for the resulting cut is arranged in the receiving space.
  • the cutting unit 22 of the shredder 1 is arranged, see Fig. 5 , which in itself is known in its kind and arranged in the usual place, so that in Fig. 1 not shown. From the top of the upper housing part 4, a feed slot 5 leads to the cutting unit.
  • the new feed unit 10 has a main body 11 in which its first conveyor roller 6 and its second conveyor roller 9 arranged and held rotatably, see also Fig. 2 , Laterally on both sides of the base body 11 support members 12 are provided and arranged so that it 10 in conjunction with at least one guide member 13 in an area, ie, seen here from the front of the shredder from behind the feed slot 5, so that the slot-shaped exit is arranged in the base body 11 corresponding to the feed slot 5 such that the paper withdrawn from the paper stack by the feeder unit and conveyed paper with its leading in the conveying direction end face in the feed slot 5 passes.
  • the slot-shaped outlet in the main body 11 is preferably arranged inclined accordingly. In the illustration after Fig. 1 the slot-shaped output is covered by a central front plate 17 of the base body 10.
  • the inner surface of the central front plate 17 facing towards the conveyor rollers 6 and 9, at least a portion of its inner surface, is designed to be a guide element for assisting the movement of a sheet toward the feed slot 5.
  • the entire inner surface or only one or more subsections of it is designed as a guide element.
  • the or the intended guide elements are designed in the manner of a Umlenkwippe.
  • This has the further advantage that in particular the deflection of subsidized relatively stiff leaves, ie leaves with above-average sheet thickness, is trouble-free.
  • the relevant deflecting portion of the feeding slot 5 leading to the conveying path more precisely, the formed conveying channel, within predetermined limits variable with respect to its position to the leading end side of the transported sheet 21st
  • the conveying direction of the paper, from its starting position on the paper support 14 up to and into the feed slot 5, is in the FIG. 1 marked with the arrow P.
  • the paper support 14 has a support surface 15 on which the paper to be shredded is placed in a stack 20 of predetermined height.
  • the paper support 14 is - with respect Feed slot 5 seen - arranged at the rear side of the main body 11. And arranged so that the two conveyor rollers 6 and 9 each with their
  • Peripheral surface 6b; 9b partially engage the support surface 15 and thus make contact with the underlying sheet 21 of the paper stack 20, see also FIG Fig. 4 ,
  • ribs 19 are arranged aligned in the conveying direction P, with which the friction between the respective lower sheet 21 and the support surface 15 is reduced.
  • FIG. 2 shows details of the new feed unit 10, namely the position of the first conveyor roller 6 and the second conveyor roller 9 in the base body 11 and their position relative to the support surface 15 of the paper support 14, also complementary to the illustration in FIG Fig. 4 ,
  • the conveyor roller 6 is arranged on a rotation axis 6c and rotatable with it.
  • the second conveyor roller 9 is arranged on a rotation axis 9c and rotatable with it. Both axes of rotation 6 c and 9 c are rotatably mounted in side regions of the base body 11.
  • At least one of the two conveyor rollers 6 and 9, preferably the first conveyor roller 6, ie, in particular their axis of rotation 6c, is connected to elements of the drive of the cutting unit or only coupled, so that during operation of the cutting unit in the rule also at least one of the conveyor rollers 6 and 9 undergoes a driven rotary motion.
  • the peripheral surface / lateral surface 9b of the roller body 9a of the second conveyor roller 9 is specially designed, see Fig. 3b , They, the lateral surface 6b and 9b, each has a special surface structure, which has in its pattern a Rectangular-scale structure.
  • a plurality of surface portions 7a to 7n are formed in the lateral surface 6b, 9b.
  • at least edges 8a to 8n are formed on each surface section 7a to 7n, as seen in conveying direction P, which positively influence the conveyance of a sheet of paper, even on soiled or smooth surface areas of the contacted sheet of paper.
  • the radial height of these edges 8a to 8n with respect to the adjacent region of the adjacent surface portion 7a to 7n, ie their respective inwardly inclined regions, is such that the structured partial surfaces or the entire lateral surface 6b, 9b of the conveyor rollers 6, 7 a plurality possesses the smallest hollows, so has a quasi-nano-structure, so in the form of a "nano-grip surface" is formed.
  • the inclined portions of the structured partial surfaces or the smallest recesses formed act more like suction cups that move the sheet safely, so subtract from the paper stack, more precisely, under Pull out the paper stack 20 and push it to the feed slot 5.
  • FIG. 3a and 3b show this new, according to the invention specially designed lateral surfaces 6b and 9b, ie their surface structure, in a much enlarged view, are parts of the representation of FIG. 3 or 4
  • FIG. 5 is the shredder 1 together with the new feeder unit 10, see also Fig. 1 , as shown by FIG. 2 shown with further details.
  • the surface of the upper housing part 4 and wall parts of the base body 11 are kept transparent here in a special graphical representation, so that the position of the cutting unit 22 of the shredder 1 and the conveyor rollers 6 and 9 are shown from a slightly different perspective.
  • a paper stack 20 was formed, which is placed with its lower sheet 21 on the support surface 15 of the paper support 14.
  • Roll 18 arranged. With its axis of rotation 18 c, this further roller 18, as well as the conveyor rollers 6 and 9 are laterally rotatably supported in the base body 11.
  • the first conveyor roller 6 and the further roller 18 are arranged at a distance to each other so that a gap between them for the passage of sheet material, such as a paper sheet is formed.
  • This gap formed can at the same time be the slot-shaped exit already mentioned earlier.
  • the width of the gap is variably adjustable, or can automatically adapt to the thickness of each subsidized sheet 21, the other roller 18 is mounted vertically movable according to a variant of the invention.
  • this further roller 18 is driven or driven.
  • peripheral surface of this further role 18 has according to a further embodiment as well as the
  • Mantle surfaces 6b, 9b of the conveyor rollers 6 and 9 surface portions having a pattern in training as Rectangular-scale structure, which, preferably also, against the conveying direction inclined surface areas and / or in the conveying direction radially projecting edges.
  • the entire lateral surface of the further roller 18 is designed in Rectangular-scale structure.
  • Such another embodiment may consist in that the novel feed rollers of the feed unit are arranged such that always the sheet of paper lying on top of the paper stack is withdrawn and fed to the feed slot 5.
  • the bearing surface of the paper support is then according to the number of already to the feed slot 5 back subsidized paper sheets in their height position accordingly changed continuously. This ensures that the upper sheet of paper of the paper stack is always applied to or on at least one of the conveyor rollers.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
EP15152180.4A 2014-01-22 2015-01-22 Unité d'introduction de matériau en forme de feuille pour une machine à détruire les documents Withdrawn EP2902111A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014100716.6A DE102014100716A1 (de) 2014-01-22 2014-01-22 Einheit zum Zuführen von blattförmigem Material für einen Aktenvernichter

Publications (1)

Publication Number Publication Date
EP2902111A1 true EP2902111A1 (fr) 2015-08-05

Family

ID=52394154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15152180.4A Withdrawn EP2902111A1 (fr) 2014-01-22 2015-01-22 Unité d'introduction de matériau en forme de feuille pour une machine à détruire les documents

Country Status (3)

Country Link
US (1) US9364835B2 (fr)
EP (1) EP2902111A1 (fr)
DE (1) DE102014100716A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD869548S1 (en) * 2017-11-28 2019-12-10 Fellowes, Inc. Shredder

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214800A1 (de) 1972-03-25 1973-09-27 Ehinger Adolf Eba Maschf Zerkleinerungsvorrichtung mit einem schneid- oder reisswerk
US4842205A (en) 1987-01-13 1989-06-27 Sharp Kabushiki Kaisha Shredding machine
US4893759A (en) 1987-03-05 1990-01-16 Sharp Kabushiki Kaisha Paper shredder with charge removing means
DE3614028C2 (fr) 1986-04-25 1990-12-20 Geha-Werke Gmbh, 3000 Hannover, De
US5120043A (en) * 1990-11-19 1992-06-09 Pitney Bowes Inc. Jam clearing and daily mail device for a document feeder
DE19911629A1 (de) * 1999-03-16 2000-09-21 Schleicher & Co Int Zuführeinrichtung zu einem Dokumentenvernichter
DE102006028828A1 (de) 2006-06-21 2007-12-27 Royal Sovereign Inc. Aktenvernichter
DE102007034224A1 (de) 2007-07-23 2009-01-29 Hermann Schwelling Vorrichtung für die Zerkleinerung von Datenträgern
US7721982B2 (en) 2007-02-06 2010-05-25 Hermann Schwelling File shredder with feed unit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408470C2 (de) 1993-03-22 1995-07-20 Hermann Schwelling Aktenvernichter mit schrankartigem Unterbau und haubenartigem Aufsatz
ES2176563T3 (es) 1996-10-09 2002-12-01 Hermann Schwelling Destructor de documentos o aparatos desmenuzadores semejantes.
DE102007020221B4 (de) 2007-04-28 2014-02-20 Hermann Schwelling Aktenvernichter
DE102007020222B4 (de) 2007-04-28 2014-03-06 Hermann Schwelling Aktenvernichter
KR100899841B1 (ko) * 2007-09-10 2009-05-27 로얄소브린 주식회사 문서세단기의 자동급지장치
WO2009064033A1 (fr) * 2007-11-12 2009-05-22 Royal Sovereign Inc. Rouleau d'alimentation de papier pour une déchiqueteuse
US9776191B2 (en) 2013-09-25 2017-10-03 Hermann Schwelling Method and device for shredding sheet-shaped material

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214800A1 (de) 1972-03-25 1973-09-27 Ehinger Adolf Eba Maschf Zerkleinerungsvorrichtung mit einem schneid- oder reisswerk
DE3614028C2 (fr) 1986-04-25 1990-12-20 Geha-Werke Gmbh, 3000 Hannover, De
US4842205A (en) 1987-01-13 1989-06-27 Sharp Kabushiki Kaisha Shredding machine
US4893759A (en) 1987-03-05 1990-01-16 Sharp Kabushiki Kaisha Paper shredder with charge removing means
US5120043A (en) * 1990-11-19 1992-06-09 Pitney Bowes Inc. Jam clearing and daily mail device for a document feeder
DE19911629A1 (de) * 1999-03-16 2000-09-21 Schleicher & Co Int Zuführeinrichtung zu einem Dokumentenvernichter
DE102006028828A1 (de) 2006-06-21 2007-12-27 Royal Sovereign Inc. Aktenvernichter
US7721982B2 (en) 2007-02-06 2010-05-25 Hermann Schwelling File shredder with feed unit
DE102007034224A1 (de) 2007-07-23 2009-01-29 Hermann Schwelling Vorrichtung für die Zerkleinerung von Datenträgern

Also Published As

Publication number Publication date
US20150224511A1 (en) 2015-08-13
US9364835B2 (en) 2016-06-14
DE102014100716A1 (de) 2015-07-23

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