EP0010280B1 - Dispositif de maintien pour un appareil de démariage de feuilles empilées - Google Patents

Dispositif de maintien pour un appareil de démariage de feuilles empilées Download PDF

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Publication number
EP0010280B1
EP0010280B1 EP79103956A EP79103956A EP0010280B1 EP 0010280 B1 EP0010280 B1 EP 0010280B1 EP 79103956 A EP79103956 A EP 79103956A EP 79103956 A EP79103956 A EP 79103956A EP 0010280 B1 EP0010280 B1 EP 0010280B1
Authority
EP
European Patent Office
Prior art keywords
bar
corner
hold
corner hold
down member
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
Application number
EP79103956A
Other languages
German (de)
English (en)
Other versions
EP0010280A1 (fr
Inventor
Klaus-Jörg Ruschepaul
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.)
Hoechst AG
Original Assignee
Hoechst 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6052817&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0010280(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to AT79103956T priority Critical patent/ATE745T1/de
Publication of EP0010280A1 publication Critical patent/EP0010280A1/fr
Application granted granted Critical
Publication of EP0010280B1 publication Critical patent/EP0010280B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/54—Pressing or holding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile

Definitions

  • the invention relates to a hold-down device for a sheet separating device, with guide parts arranged vertically on a base plate for receiving a sheet stack and having guide slots in which an element is arranged horizontally, on which corner hold-down devices are attached.
  • Such a device is known from US-A-3 807 725, namely a sheet feed device with side guides for the stack of sheets, these side guides having lugs with vertically extending toothed guide slots through which a rod extends horizontally in the guide slots is attached.
  • Sheet separators are arranged on the rod, which carry pins which extend from the sheet separators through the slots to the outside and are intercepted by E-rings. These pins can slide in the guide slots so that the rod-sheet separator arrangement can be moved up and down.
  • DE-B-2 643 388 discloses a device with approximately vertically displaceable corner hold-down devices in the area of the front sheet corners, each of which is attached 3 m to one end of a lever pivotable about a first swivel joint located at the other end, the two levers being closed are arranged on both long sides of the stack.
  • the lever is also pivotable about a second, non-positionally fixed swivel, which is part of the lever.
  • a control lever is articulated to this swivel joint, which has a stationary swivel joint.
  • the first swivel is slidably arranged.
  • This device in which the corner hold-down devices are attached to rotatably mounted levers, requires a certain amount of effort so that the corner hold-down devices run approximately in a straight line in the region of the front edge of the sheet stack.
  • This requires a four-link gearbox and the corner hold-down devices must also be rotatably mounted.
  • the sheet stack height is limited, since the corner hold-down devices can only be guided in a straight line over a certain vertical area.
  • the corner hold-down devices are arranged on pivotable arms which extend along the outer sides of guide rails and carry out a substantially vertical movement on an arcuate path.
  • a front stop device is provided which can be moved to and from an upright position to touch the stack.
  • This stop device is equipped with a stop component which is arranged between the corner hold-down devices and whose lower end is fixedly connected by means of a suitable device to a shaft which is rotatably received by baking below the surface of the stacking trough.
  • This known device is complex since, in addition to the arms for pivoting the corner hold-down device, there is also a separate stop device which must be rotatable about a shaft in order to take into account the arcuate, downward-pointing path of the corner hold-down device so that even the bottom leaves of the Stack can still be separated properly.
  • a hold-down device known from DE-A-2 265 108 has a control device which essentially keeps the corner hold-down devices in constant contact with the corner of the stack so that they move downwards when the stack is being processed.
  • a lever is mounted on a side plate, which has arcuate slots which receive pins projecting from the lever. When the lever is raised, the pins follow the elongated, curved shape of the slots, causing the hold-down device to move substantially vertically downward.
  • the lever is raised by means of a cam device.
  • This hold-down device also has relatively complex devices for moving the corner hold-downs along an almost vertical path.
  • All these known hold-down devices have in common that the sheet stack height is limited, since the corner hold-down devices can only be guided in a straight line over a certain narrow area, additional devices being provided for moving the corner hold-down devices along the path, which are otherwise almost vertical runs.
  • the object of the invention is to provide a hold-down device for a sheet separating device, which is simple and inexpensive and allows an exact vertical movement of the corner hold-down device without additional devices over the entire stack height and in which the size of the sheet stack height only by the height of the sheet stacking device , but is not limited by the area in which the corner hold-down device can be guided in a straight line.
  • each of the two guide parts consists of a cylinder which has a guide slot parallel to the cylinder axis for receiving and sliding guidance the associated end of the bar.
  • the advantages are achieved that the technical outlay is significantly less than in known hold-down devices, that an unlimited stack height is possible, and that no complicated adjustment movements are required when changing the sheet format, but only an exchange of the bar or a change of position one or both corner retainers from the positions of the original sheet format to those of the new sheet format on the bar.
  • the hold-down device shown in Fig. 1 consists of a bar 1 carrying two corner holder 2, and two leadership g run set 3, which are arranged on a floor panel 6 for receiving a sheet stack 4.
  • These guide parts 3 are cylinders, each having a vertical and parallel to the cylinder axis guide slot 7 for receiving and slidingly guiding the ends of the strip 1.
  • the strip 1 is designed at its ends so that it can slide almost smoothly in the guide slots 7 and is made, for example, of metal so that it can exert sufficient pressure to hold down the sheets of the stack due to its weight on the corner hold-down 2.
  • the corner hold-down devices 2 are fixed to the bar 1, that is, they cannot be detached.
  • the distance between the two corner hold-downs 2 is equal to the width or length of a given sheet format.
  • the corner hold-down device 2 consists of an angular singling corner, which is formed by two angular surfaces 12, 13. At the top of the singling corner there is a cross strut 9 running between the angular surfaces, the upper edge of which closes off with the upper edges of the angular surfaces 12, 13. Instead of the cross strut 9, a triangular surface 8 can also be provided, which closes the butt corner of the two angular surfaces 12, 13 towards the top.
  • the bar 1 is lifted off the guide parts: 1 3. After the sheet stack 4 is aligned, which is placed, for example, together with its packaging 5 on the base plate 6, the ends of the bar 1 are inserted into the guide slots 7 and lie on the top sheet of the stack 4 because of their own weight with the corner hold-down devices 2 .
  • the bar 1 with the corner downholder 2 can be designed as an integral molded part, so that when changing the sheet format, the bar 1 used first can be exchanged for a new bar 1 whose corner downholder 2 have a distance corresponding to the new format.
  • the bar 1 shown in Fig. 2a has a number of holes 10, which are arranged along the length and symmetrically to the center line 11 of the bar 1 at predetermined intervals and belong together in pairs.
  • the distances between the holes 10 belonging together correspond, for example, to the A4 and A3 format. It goes without saying that the holes 10 can also have other distances from one another, the further DIN formats or others. international formats, such as the Japan B format or US or British formats.
  • the corner hold-down device 2 has on one outer side of the one angular surface 12 or 13 a pin 14 which can be brought into engagement with one of the holes 10 in the strip 1. Both corner hold-down devices 2 can be detachably connected to the strip 1.
  • Fig. 2a the left corner hold-down device 2 is shown detached from the bar 1, while the right corner hold-down device 2 is in engagement with the bar 1.
  • the right corner hold-down device 2 is firmly connected to the bar 1, while the left corner hold-down device 2 is detachably engaged with the bar 1.
  • the number of holes 10 in the bar can be reduced by half compared to the number of holes in the embodiment according to FIG. 2a. It is only necessary to ensure that the strip 1 has a significantly greater weight than the corner downholders 2 so that there is no tilting of the strip 1 within the guide slots 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Claims (8)

1. Dispositif serre-flan pour dispositif de démariage de feuilles empilées, comportant des éléments de guidage (3) arrangés verticalement sur une plaque de base (6). qui sont destinés à maintenir les feuilles empilées (4) et qui comportent des rainures de guidage (7) qui reçoivent un élément (1) installé horizontalement et portant des serre-flan angulaires (2), caractérisé en ce que cet élément (1) est constitué d'une réglette (1), et en ce que chacun des éléments de guidage (3) se compose d'un cylindre comportant une rainure de guidage (7) qui est parallèle à l'axe de ce cylindre et qui assure le coulissement de l'extrémité appropriée de la réglette (1).
2. Dispositif selon la revendication 1, caractérisé en ce que chaque serre-flan angulaire (2) se compose d'un triangle de démariage dont les deux faces latérales (12 et 13) sont reliées entre elles par une entretoise oblique (9).
3. Dispositif selon la revendication 1, caractérisé en ce que chaque serre-flan de forme angulaire (2) est relié à la réglette (1) d'une manière inamovible, et en ce que la distance entre les deux serre-flan (2) correspond à la largeur ou à la longueur d'un format de papier donné.
4. Dispositif selon les revendications 1 et 2, caractérisé en ce que l'un au moins des serre-flan (2) est amoviblement relié à la réglette (1 ).
5. Dispositif selon la revendication 4, caractérisé en ce que la paroi extérieure de l'une des faces latérales (12, 13) du serre-flan (2) porte un pivot (14), qui s'engage dans l'une des perforations (10) de la réglette (1).
6. Dispositif selon la revendication 5, caractérisé en ce que les perforations (10) sont pratiquées dans le sens longitudinal, d'une manière symétrique de part et d'autre d'une ligne médiane de la réglette (1), et sont associées deux par deux.
7. Dispositif selon la revendication 4, caractérisé en ce que l'un des serre-flan de forme angulaire (2) est amoviblement relié à la réglette, alors que le deuxième est inamoviblement relié à la réglette, en ce que les distances entre les perforations (10) correspondent à l'une des dimensions d'un format de papier déterminé (A3, A4...) et en ce que les perforations (10) sont pratiquées en se référant à la paroi intérieure de l'une des deux faces latérales (12, 13) du serre-flan (2) inamovible.
8. Dispositif selon la revendication 7, caractérisé en ce que chaque serre-flan (2) comporte une plaque triangulaire (8) placée dans le même plan que les arêtes supérieures des parois latérales (12, 13).
EP79103956A 1978-10-21 1979-10-15 Dispositif de maintien pour un appareil de démariage de feuilles empilées Expired EP0010280B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103956T ATE745T1 (de) 1978-10-21 1979-10-15 Niederhalte-vorrichtung fuer eine blattvereinzelungseinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782845962 DE2845962A1 (de) 1978-10-21 1978-10-21 Vorrichtung zum vereinzeln von blaettern
DE2845962 1978-10-21

Publications (2)

Publication Number Publication Date
EP0010280A1 EP0010280A1 (fr) 1980-04-30
EP0010280B1 true EP0010280B1 (fr) 1982-03-10

Family

ID=6052817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103956A Expired EP0010280B1 (fr) 1978-10-21 1979-10-15 Dispositif de maintien pour un appareil de démariage de feuilles empilées

Country Status (6)

Country Link
US (1) US4275878A (fr)
EP (1) EP0010280B1 (fr)
JP (1) JPS5935469Y2 (fr)
AT (1) ATE745T1 (fr)
CA (1) CA1127195A (fr)
DE (2) DE2845962A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3943135A1 (de) * 1989-12-28 1991-07-04 Helmut Steinhilber Vorrichtung zum vereinzelten abziehen von papierblaettern von einem stapel
TWI247677B (en) * 2005-05-13 2006-01-21 Avision Inc Width-adjustable sheet tray
US7942403B2 (en) * 2005-05-20 2011-05-17 Hewlett-Packard Development Company, L.P. Sheet lifting with corner projections
US11097912B2 (en) * 2019-06-20 2021-08-24 Xerox Corporation Tethered trailing edge media guide

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230040B (de) * 1964-09-19 1966-12-08 Zeuthen & Aagaard As Bogenvereinzelungsvorrichtung fuer bogenverarbeitende Maschinen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029074A (en) * 1959-02-26 1962-04-10 Heyer Inc Sheet feed control for duplicating machines
US3301551A (en) * 1964-12-31 1967-01-31 Xerox Corp Sheet feed mechanism
GB1206717A (en) * 1967-02-16 1970-09-30 Ricoh Kk Improvements in sheet feeding apparatus
NL6805655A (fr) * 1967-08-17 1969-02-19
AU1141470A (en) * 1969-02-20 1971-08-19 Scm Corporation Sheet feeding apparatus
US3601389A (en) * 1969-07-03 1971-08-24 Xerox Corp Sheet feeding apparatus
DE2211494C3 (de) * 1971-04-26 1978-12-07 Xerox Corp., Rochester, N.Y. (V.St.A.) Eckenniederhalter an einer Vereinzelungsvorrichtung für Blätter
US3807725A (en) * 1971-07-06 1974-04-30 Bell & Howell Co Mechanism for separating side guides and raising pin separators
DE2643388C3 (de) * 1976-09-27 1979-03-15 Hoechst Ag, 6000 Frankfurt Vorrichtung zum Vereinzeln von Blättern eines Stapels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1230040B (de) * 1964-09-19 1966-12-08 Zeuthen & Aagaard As Bogenvereinzelungsvorrichtung fuer bogenverarbeitende Maschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Van der Grinten Bulletin Nr. 83, 1965, S. 3-5 *

Also Published As

Publication number Publication date
JPS5563329U (fr) 1980-04-30
DE2962263D1 (en) 1982-04-08
JPS5935469Y2 (ja) 1984-10-01
US4275878A (en) 1981-06-30
ATE745T1 (de) 1982-03-15
DE2845962A1 (de) 1980-04-30
EP0010280A1 (fr) 1980-04-30
CA1127195A (fr) 1982-07-06

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