EP0121803A1 - Dispositif pour séparer et transporter la feuille supérieure d'une pile de feuilles ou d'objets sous forme de feuilles - Google Patents

Dispositif pour séparer et transporter la feuille supérieure d'une pile de feuilles ou d'objets sous forme de feuilles Download PDF

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Publication number
EP0121803A1
EP0121803A1 EP84102670A EP84102670A EP0121803A1 EP 0121803 A1 EP0121803 A1 EP 0121803A1 EP 84102670 A EP84102670 A EP 84102670A EP 84102670 A EP84102670 A EP 84102670A EP 0121803 A1 EP0121803 A1 EP 0121803A1
Authority
EP
European Patent Office
Prior art keywords
sheet
suction mouthpiece
suction
mouthpiece
movement
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
EP84102670A
Other languages
German (de)
English (en)
Other versions
EP0121803B1 (fr
Inventor
Egon Illig
Wolfgang Dipl.-Ing. Schmutz
Josef Ing. Grad. Gentischer
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 DE19833308867 external-priority patent/DE3308867C1/de
Priority claimed from DE19843404215 external-priority patent/DE3404215A1/de
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP0121803A1 publication Critical patent/EP0121803A1/fr
Application granted granted Critical
Publication of EP0121803B1 publication Critical patent/EP0121803B1/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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0891—Generating or controlling the depression
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0883—Construction of suction grippers or their holding devices

Definitions

  • the invention relates to a device for separating and transporting the uppermost sheet of a stack of sheets or sheet-shaped objects by means of a movable suction mouthpiece, in which the negative pressure which causes the suction of the sheet simultaneously controls the movement of the suction mouthpiece which is mounted in a guide in a longitudinally displaceable manner.
  • a device of this type is the subject of German Utility Model 1 782 267.
  • a separate blowing nozzle is required, the air flow of which can capture several of the top sheets of the stack and thereby disrupt the separation process.
  • the movable suction mouthpiece first performs a lifting movement which lifts the sheet to be separated from the stack. This stroke movement is followed by a pulsating movement of the suction mouthpiece, which, on the one hand, causes the suction mouthpiece to be shaken off unintentionally. attracted double sheet causes and on the other hand by the periodic change in certain directions lifting and falling movements of the sheet initiates its transport to the subsequent transport rollers.
  • the pulsating movement of the suction mouthpiece can be increased by increasing the area of attack of the periodically changing air pressure in the connecting line between the suction mouthpiece and the valveless pump by means of a membrane connected to the suction mouthpiece.
  • an additional adjustment device for the movable suction nozzle provided with an external drive, can be used or a level-controlled rising table can be provided for the stack.
  • a particularly separable embodiment of the separating and transport device according to the invention is obtained if the stacking table is inclined against the transport direction and is provided with rear stacking stops. In this way, very thin, air-permeable sheets as well as plastic films adhering to each other due to electrostatic charges can be separated equally reliably.
  • the transport speed in the direction of the subsequent transport rollers can be increased by using a stacking table inclined in the transport direction with front stacking stops. This embodiment favors the feeding of sheets during operation.
  • the conveyed sheet it is possible for the conveyed sheet to stand upright, in a known manner, depending on the operating phases of a following device. clocked transport roller pair or to put on a side stack stop, without significant frictional forces or wear caused by friction occurring on the movable suction nozzle and the conveyed sheet.
  • a stacking table 2 for a sheet stack 3 is arranged in a device frame 1.
  • the stacking table 2 is inclined at an angle ⁇ with respect to the horizontal and has at its rear end a stacking stop 2a, which is located on the Place stacked sheets 3a under the force of gravity.
  • It is designed as a so-called riser table, which can be adjusted automatically in the direction perpendicular to the stack surface by means of screw spindles 4 in a known manner as a function of a stack sensor not shown in the figure, so that the stack surface is always the level indicated by the line H in the figure occupies.
  • the top sheet 3a of the stack 3 is under the action of its own weight and a light pressure spring 5, a movable suction nozzle 6.
  • the suction mouthpiece 6 is plugged onto a mouthpiece 7a which is formed at the lower end of a movable piston 7 and which has a central bore 7c.
  • the piston 7 is mounted for longitudinal movement in a guide cylinder 8, into which a stop screw 9 engaging in a recess 7b of the piston 7 is screwed.
  • the guide cylinder 8 is inserted into a holder 10 fixed to the device and is closed at its upper end by means of a connection piece 11 provided with a central bore 11a and screwable into the guide cylinder 8, which at the same time serves as a counter-bearing for the pressure spring 5 arranged inside the piston 7.
  • a connecting line 12 is plugged, which connects the inside of the guide cylinder 8 with a valve-less diaphragm pump 13.
  • the membrane 16 of the membrane pump 13 is between one Upper part 14 and a lower part 15 clamped and connected to a crank rod 17 by means of a screw 16a.
  • the crank rod 17 is set in a periodic movement by an eccentric 18 mounted in the lower part 15 of the diaphragm pump and driven in the arrow direction B by a drive motor (not shown in the figure).
  • a valveless piston pump or another pump arrangement suitable for generating a periodically changing overpressure and underpressure can also be used.
  • the upper part 14 carries a pipe piece 14b which serves as a ventilation line and which can be closed by means of a hemispherical valve body 19 made of an elastic material.
  • a peg-shaped extension 19a of the valve body 19 is inserted into a corresponding hole in a raised tab 20a of a two-armed rocker arm 20, which is under the action of a leg spring 21 which tries to turn it counterclockwise and which thereby causes the valve body 19 to open the pipe section 14b creates.
  • An arm 20b of the rocker arm 19 interacts with an actuating lever 21 which extends through an opening la of the device frame 1.
  • the actuating lever 21 is controlled by the control device of the device following the separating device according to the invention, not shown in detail, for example electromagnetic means, in the cycle in which the sheets are to be separated, whereby a Opening the valve 14b, 19 causes an immediate interruption of the separation and transport process.
  • transport rollers 22 and 23 are arranged behind the stacking table and are supported on shafts 24 and 25.
  • the transport rollers 22 and 23 can either rotate continuously in the direction indicated by the arrow or be driven intermittently in the cycle required for the subsequent processing machine.
  • clocking e.g. in the case of a copier
  • the correct application of the copy carrier to the recording cylinder can be controlled in a known manner.
  • the transport rollers 22 and 23 are surrounded by guide plates 26 and 27 for the sheets to be transported.
  • Figures 2 and 3 show the sequence of movements of the suction mouthpiece 6 and the sheet 3a gripped by this mouthpiece. Accordingly, the movable suction nozzle 6 is initially under the action of the pressure spring 5 on the top sheet of the stack 3. After closing the vent valve 19 ( Figure 1). or, if no such venting valve is provided, after the pump 13 has started, the sheet 3a is attracted to the suction mouthpiece, closing the bore 7c of the piston 7 in the manner of a check valve. In the interior of the guide cylinder 8, a negative pressure is created, which also affects the rear end faces of the piston cross section 7d (FIG.
  • a movement characteristic suitable for the removal of paper sheets of different basis weights and of thin plastic foils was achieved, for example, with the dimensions customary in known telescopic suction devices when using a light pressure spring with a flat characteristic and with a lifting height H max of approximately 10 to 20 mm with a pumping frequency of approximately 20 to 30 Hz achieved.
  • both the suction and the separation security of the separating and transport device according to the invention can be improved by using a suction mouthpiece, which is equipped in the manner shown in the figures with the largest possible elastic suction plate 6a (FIGS. 1, 2, 6.7).
  • This suction plate 6a closes due to its elasticity the top sheet of the Stack even in the event of unevenness and angle differences and offers a large area for the attacking negative pressure.
  • the relative influence of the air pressure prevailing in the connecting line 12 on the lifting movement of the suction mouthpiece 6 can, as will be explained in more detail below, be achieved by increasing the effective piston area 7d or by switching a membrane connected to the piston 7 into the airway .
  • the above-described movement characteristic of the movable suction device 6 leads to the uppermost sheet 3a of the stack 3 first being lifted off the stack by the distance H 1 . It then alternately performs falling movements in the direction of gravity G and stroke movements in the direction of movement H of the movable suction mouthpiece 6 in the rhythm of the pump frequency. If the suction guide is inclined by a suitable angle ⁇ with respect to the direction of gravity G, the two movements above result in a movement in the direction of conveyance F.
  • the conveying direction F is inclined by an angle ⁇ with respect to the horizontal.
  • This inclination of the conveying direction F which essentially corresponds to both the inclination of the lower surface of the suction mouthpiece and the inclination of the stack surface, favors the retention of the sheets in the stack by the action of gravity and thereby increases the separation security of the separating device.
  • a particular advantage of the separating device according to the invention is that the conveyed sheet is without frictional connection with the suction nozzle 6 during its lifting and falling movements as described above. It is therefore possible to move or hold the separated sheet virtually without friction by introducing additional forces against the direction of movement specified by the suction mouthpiece, without switching off the pump. This is important in the often practiced application of the isolated sheet against a standing pair of suction rolls.
  • sheets 3a of different formats lie on a stacking table.
  • the suction nozzle 6 is placed so that it alternately each of a rear stack stop 2a and a side Stack stop 2b created sheet formats 3a can capture.
  • Its conveying direction F ' is rotated by such an angle ⁇ with respect to the actual conveying direction F that a conveying component F "directed towards the lateral guide 2b is created.
  • the conveyed sheet is therefore, regardless of its external dimensions, against the lateral guide during the entire transport process 2b created and fed to the conveyor rollers 22, 23 without tilting.
  • a further suction nozzle 6 1 can be arranged.
  • a plurality of suction mouthpieces such as suction mouthpieces 6 and 6 ", next to one another for conveying wider formats.
  • FIG. 5 shows an embodiment of the separating device according to the invention, in which the stacking table 28 is inclined by an angle ⁇ with respect to the horizontal in the transport direction.
  • the stack stop 28a is arranged in front of the sheet stack 3.
  • the suction cup 29 with the suction mouthpiece 30 is fastened to a pivotable carrier 31 which is mounted on an axis 32 fixed to the device.
  • the carrier 31 is under the action of a tension spring 33 which tries to pivot it counterclockwise and thereby places it against a stop 34 fixed to the device. Due to this pivoting movement, the suction nozzle 30 is in the
  • a guide plate 35 attached to the carrier 31 preventing the sheets being pushed behind the suction mouthpiece 30 from getting caught.
  • the part of the suction mouthpiece 30 which projects beyond the guide plate 35 in the idle state is provided with an insertion bevel 30a.
  • H min (FIG. 3) can be chosen to be correspondingly smaller, as a result of which there is greater freedom in the selection of the variables listed above which influence the stroke of the suction nozzle.
  • a lifting magnet 36 which is connected to an arm 31a of the movable carrier 31 by means of a pull rod 37, serves to initiate the positioning movement.
  • the lifting magnet 36 is actuated by means of suitable control means shortly before the pulsating suction device 29, 30 is switched on and is switched off again shortly after the suction device is switched on.
  • the connecting line 38 to the suction pickup 29, 30 arranged on the pivotable carrier 31 is guided in a known manner through the hollow pivot axis 32.
  • the inclination ⁇ of the stroke direction H with respect to the direction of gravity G is chosen such that the stroke movement together with the tilting movement of the carrier 31 essentially only the isolated sheet separates from the stack and lifts over the stack front stop 28a, while the movement component of the separated sheet 3a pointing in the transport direction F is derived predominantly from the falling movement in the direction of gravity G.
  • the sheet is fed to a pair of transport rollers 22, 23 which is arranged on a guide track formed by guide plates 26, 27.
  • a membrane 39 is attached to the upper end of the tubular piston 37 carrying the movable suction nozzle 6 by means of an annular nut 37a.
  • the membrane 39 is inserted into the upper, can-like part 40a of a cylinder guide 40 and covered by means of a cap 42 fastened to the cylinder guide 40 by means of screws 41, to which the suction air line 12 is connected.
  • the space enclosed between the membrane 39 and the cap 42 is thereby connected to the valve-less pump, while the space located below the membrane is connected to the outside air through ventilation holes 40b.
  • the pump pressure acts on a much larger area than the cross-sectional area of the piston 37, so that the vacuum required for the suction nozzle 6 has a much greater effect on the movement of the piston 37.
  • the movement characteristic shown in FIG. 3 can be influenced in the sense that the air pressure prevailing in line 12 has a greater effect on the movement of the suction mouthpiece.
  • an annular body 44 is arranged in a holder 43 fixed to the device, in which two membranes 45 and 46 are inserted.
  • the lower membrane 45 is held in the ring body 44 by means of a screw ring 47, the upper membrane 46 by means of a screw cap 48.
  • a tubular support 50 for the movable suction mouthpiece 6 is fastened to the membrane 45 by means of a ring nut 49.
  • the membrane 46 is connected by means of a screw 51 to a bolt-shaped magnet armature 52 which is immersed in a magnet coil 53 inserted into the screw cap 48.
  • the solenoid 53 is connected by means of lines 54 and 55 to an alternating current generator (not shown in the figure) which supplies it with alternating current of the frequency required for the operation of the suction pickup in the cycle required for the separation and transport of the sheets in the stack 3.
  • the membrane 46 forms the membrane pump required for the operation of the movable suction mouthpiece 6, which can be inserted into the device as a whole unit together with the suction customer or can be removed from the device for maintenance purposes.
  • the tubular support 50 for the movable suction nozzle 6 could also be guided in a cylinder guide in the manner shown in FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP84102670A 1983-03-12 1984-03-12 Dispositif pour séparer et transporter la feuille supérieure d'une pile de feuilles ou d'objets sous forme de feuilles Expired EP0121803B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19833308867 DE3308867C1 (de) 1983-03-12 1983-03-12 Vorrichtung zum Vereinzeln des obersten Blattes eines Blattstapels
DE3308867 1983-03-12
DE19843404215 DE3404215A1 (de) 1984-02-07 1984-02-07 Vorrichtung zum vereinzeln und transportieren des jeweils obersten blattes eines stapels von blaettern oder blattfoermigen gegenstaenden
DE3404215 1984-02-07

Publications (2)

Publication Number Publication Date
EP0121803A1 true EP0121803A1 (fr) 1984-10-17
EP0121803B1 EP0121803B1 (fr) 1986-06-25

Family

ID=25808984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102670A Expired EP0121803B1 (fr) 1983-03-12 1984-03-12 Dispositif pour séparer et transporter la feuille supérieure d'une pile de feuilles ou d'objets sous forme de feuilles

Country Status (2)

Country Link
US (1) US4591140A (fr)
EP (1) EP0121803B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194511A2 (fr) * 1985-03-12 1986-09-17 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Dispositif pour séparer et transporter la feuille la plus haute d'une pile de feuilles ou d'articles en forme de feuille
EP0324594A2 (fr) * 1988-01-13 1989-07-19 Seiko Instruments Inc. Dispositif d'alimentation en feuilles pour un appareil d'enregistrement d'images
EP0448385A2 (fr) * 1990-03-23 1991-09-25 AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL INC. Dispositif pour la séparation de feuilles
EP0560704A1 (fr) * 1992-03-12 1993-09-15 Nijal (S.A.) Dispositif de dépilage automatique de barquettes, et machines équipées d'un tel dispositif
WO1994008880A1 (fr) * 1992-10-10 1994-04-28 Heidelberger Druckmaschinen Aktiengesellschaft Margeur pour machine de manipulation de feuilles de papier

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4871161A (en) * 1984-09-11 1989-10-03 Levi Strauss & Co. Separating and feeding garment parts
US4688781A (en) * 1984-09-11 1987-08-25 Levi Strauss & Co. Separating and feeding fabric parts
DE3503622A1 (de) * 1985-02-02 1986-08-07 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zum entnehmen eines blattfilms mittels eines saugers
DE3508737A1 (de) * 1985-03-12 1986-09-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Vorrichtung zum vereinzeln und zum transport blattfoermiger gegenstaende
US4934892A (en) * 1986-01-31 1990-06-19 Opex Corporation Envelope processing apparatus
US5039078A (en) * 1986-10-03 1991-08-13 Levi Strauss & Co. Separating and feeding garment parts
JPS645891A (en) * 1987-06-29 1989-01-10 Sony Corp Page turn-over device
US5026039A (en) * 1988-12-21 1991-06-25 Brother Kogyo Kabushiki Kaisha Sheet storage case for use in image recording apparatus
US5005818A (en) * 1988-12-21 1991-04-09 Brother Kogyo Kabushiki Kaisha Sheet feed device having a sheet cassette locking mechanism
DE3901907C1 (fr) * 1989-01-24 1990-03-22 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4130562A1 (de) * 1991-09-13 1993-04-01 Agfa Gevaert Ag Magazin fuer blattfilme und entnahme von filmen
DE4130563C1 (fr) * 1991-09-13 1993-01-07 Agfa-Gevaert Ag, 5090 Leverkusen, De
US5991593A (en) * 1996-09-04 1999-11-23 Canon Kabushiki Kaisha Sheet supplying apparatus of air absorbing type
NL1007943C2 (nl) 1997-12-31 1999-07-01 Hadewe Bv Inrichting en werkwijze voor het van een stapel separeren van vellen.
DE10009666A1 (de) 1999-03-19 2000-09-21 Heidelberger Druckmasch Ag Verfahren zum Betrieb eines Hubsaugers und Hubsauger
DE10253788A1 (de) * 2001-12-10 2003-06-18 Heidelberger Druckmasch Ag Vorrichtung zur Zufuhr von Saugluft oder Blasluft in einer bogenverarbeitenden Maschine
GB0328961D0 (en) * 2003-12-13 2004-01-14 Ncr Int Inc Vacuum picking system
DE102004004396A1 (de) * 2004-01-29 2005-08-11 Heidelberger Druckmaschinen Ag Vorrichtung zur Erzeugung gedrosselter Blas- oder Saugluft

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US3446499A (en) * 1968-01-05 1969-05-27 Bliss Co Sheet material handling apparatus
DE2118909A1 (de) * 1970-04-17 1971-11-04 Eastman Kodak Co Vorrichtung zum blattweisen Zuführen von Blättern
DE2155383A1 (de) * 1970-12-07 1972-06-22 Adamovske Strojirny Np Saugdüsenvorrichtung für pneumatische Trenn- und Fördereinrichtungen an Bogen verarbeitenden Maschinen, insbesondere Druckmaschinen
DE2642059A1 (de) * 1976-04-07 1977-10-20 Union Camp Corp Vorrichtung zur entnahme einzelner boegen aus einem stapel
DE2638152A1 (de) * 1976-08-25 1978-03-09 Oppenweiler Gmbh Maschinenbau Vorrichtung zum abheben und abziehen einzelner bogen von einem bogenstapel
DE3135525A1 (de) * 1980-10-15 1982-06-16 ZVS Adamovské strojírny, koncernový podnik, Adamov Sauger zum vereinzeln von papierboegen fuer insbesondere druckmaschinen

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DE534081C (de) * 1930-12-09 1931-09-26 Dentler & Maass G M B H Saugvorrichtung zum Entnehmen von Etiketten o. dgl. aus Stapeln und Befoerdern derselben zur Arbeitsstelle
CH461169A (de) * 1967-09-04 1968-08-15 Mueller Jucker Walter Abschrankung für einen für die Kälberaufzucht bestimmten Stallabteil
GB1345709A (en) * 1970-06-09 1974-02-06 Crosfield Business Mach Sheet feeding apparatus
US3994488A (en) * 1974-12-14 1976-11-30 Burroughs Corporation Sheet separation apparatus
US4351518A (en) * 1980-12-16 1982-09-28 Emile Stievenart Suction-operated device for feeding sheets one by one to a point of utilization

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Publication number Priority date Publication date Assignee Title
US3446499A (en) * 1968-01-05 1969-05-27 Bliss Co Sheet material handling apparatus
DE2118909A1 (de) * 1970-04-17 1971-11-04 Eastman Kodak Co Vorrichtung zum blattweisen Zuführen von Blättern
DE2155383A1 (de) * 1970-12-07 1972-06-22 Adamovske Strojirny Np Saugdüsenvorrichtung für pneumatische Trenn- und Fördereinrichtungen an Bogen verarbeitenden Maschinen, insbesondere Druckmaschinen
DE2642059A1 (de) * 1976-04-07 1977-10-20 Union Camp Corp Vorrichtung zur entnahme einzelner boegen aus einem stapel
DE2638152A1 (de) * 1976-08-25 1978-03-09 Oppenweiler Gmbh Maschinenbau Vorrichtung zum abheben und abziehen einzelner bogen von einem bogenstapel
DE3135525A1 (de) * 1980-10-15 1982-06-16 ZVS Adamovské strojírny, koncernový podnik, Adamov Sauger zum vereinzeln von papierboegen fuer insbesondere druckmaschinen

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SOVIET INVENTIONS ILLUSTRATED, Sektions P,Q, Woche E 40, 17. November 1982, DERWENT PUBLICATIONS LTD. London, P 72; & SU-A-885052 (TOKAREV) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194511A2 (fr) * 1985-03-12 1986-09-17 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Dispositif pour séparer et transporter la feuille la plus haute d'une pile de feuilles ou d'articles en forme de feuille
EP0194511A3 (fr) * 1985-03-12 1988-01-07 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Dispositif pour séparer et transporter la feuille la plus haute d'une pile de feuilles ou d'articles en forme de feuille
EP0324594A2 (fr) * 1988-01-13 1989-07-19 Seiko Instruments Inc. Dispositif d'alimentation en feuilles pour un appareil d'enregistrement d'images
EP0324594A3 (fr) * 1988-01-13 1990-04-25 Seiko Instruments Inc. Dispositif d'alimentation en feuilles pour un appareil d'enregistrement d'images
EP0448385A2 (fr) * 1990-03-23 1991-09-25 AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL INC. Dispositif pour la séparation de feuilles
EP0448385A3 (fr) * 1990-03-23 1991-10-16 AT&T GLOBAL INFORMATION SOLUTIONS INTERNATIONAL INC. Dispositif pour la séparation de feuilles
EP0560704A1 (fr) * 1992-03-12 1993-09-15 Nijal (S.A.) Dispositif de dépilage automatique de barquettes, et machines équipées d'un tel dispositif
WO1994008880A1 (fr) * 1992-10-10 1994-04-28 Heidelberger Druckmaschinen Aktiengesellschaft Margeur pour machine de manipulation de feuilles de papier

Also Published As

Publication number Publication date
US4591140A (en) 1986-05-27
EP0121803B1 (fr) 1986-06-25

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