EP0434956B1 - Dispositif pour alimentation automatique de feuilles individuelles et similaire - Google Patents

Dispositif pour alimentation automatique de feuilles individuelles et similaire Download PDF

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Publication number
EP0434956B1
EP0434956B1 EP90121762A EP90121762A EP0434956B1 EP 0434956 B1 EP0434956 B1 EP 0434956B1 EP 90121762 A EP90121762 A EP 90121762A EP 90121762 A EP90121762 A EP 90121762A EP 0434956 B1 EP0434956 B1 EP 0434956B1
Authority
EP
European Patent Office
Prior art keywords
stacks
magazine
stack
separating
carriage
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
EP90121762A
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German (de)
English (en)
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EP0434956A3 (en
EP0434956A2 (fr
Inventor
Helmut Steinhilber
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Individual
Original Assignee
Individual
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Publication date
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Publication of EP0434956A2 publication Critical patent/EP0434956A2/fr
Publication of EP0434956A3 publication Critical patent/EP0434956A3/de
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    • 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
    • B65H3/44—Simultaneously, alternately, or selectively separating articles from two or more piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42328—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles of inclined articles and inclination angle >45

Definitions

  • the invention relates to a device for the automatic output of single sheets and the like for an office machine according to the preamble of claim 1.
  • single sheets In order to feed single sheets to an office machine, such as a printer, a copier or the like, these single sheets are provided in a stack, provided in a magazine, individually pulled from the stack and fed to the office machine. In order to selectively feed different types of single sheets to the office machine, several such stacks with the different types of single sheets are provided, and the single sheets are withdrawn in a controlled manner from a selected stack and fed to the office machine. If the term single sheets is used in the following Unless it is expressly specified, this term applies generally to any type of single sheet, ie to single sheets of different formats and stiffness, to multiple sets of single sheets or forms, to cards, envelopes, etc.
  • a separate separating device can be assigned to each stack, which causes the sheets to be separated and deducted from the stack. In the case of a larger number of stacks, it becomes complex to assign a separate separating device to each stack.
  • a device of the type mentioned at the outset is known in which a larger number of stacks are arranged one above the other in a magazine.
  • a separating device can be moved in front of the end of the stack, which can move to a selected stack in a controlled manner in order to pull a sheet from this stack.
  • the removed sheets are transferred to a conveyor belt which feeds the sheets to the office machine.
  • the individual stacks are arranged in cassettes which can be displaced between a rest position and a singling position. The respectively selected cassette is actuated and advanced from the rest position into the singling position, in which it projects into the movement path of the singling device, so that the singling device can come into engagement with the paper stack stored in the cassette and pull off the top sheet from the stack.
  • a separate cassette is also required for each stack. If individual sheets of different formats are to be stored, different cassettes are also required. All of this makes the device complex, particularly in the case of a large number of stacks.
  • the number of stacks that can be provided is determined by the number of receptacles and displacement devices for the cassettes in this known device.
  • the height of the cassettes also determines the maximum holding volume for each individual stack.
  • a device for feeding single sheets to an office machine which has two storage chutes arranged one behind the other, into which paper stacks can be placed upright.
  • the supply chutes have supporting means for the respective paper stack arranged in the predetermined position in the device. Neither the number nor the distance of the supply shafts and their support means can be changed. Accordingly, neither the number nor the maximum volume of the paper stacks can be freely selected.
  • the invention has for its object to provide a device for automatically feeding single sheets to an office machine, which gives the user great flexibility with regard to the number and the amounts of the different types of single sheets that are provided.
  • the support means for the stacks can be inserted into the magazine at any distance.
  • the user can thus freely choose how many support means he uses, which allows him to determine the number of stacks with different types of cut sheets. Furthermore, he can freely choose the mutual distance between the support means, whereby he the volume or the thickness the individual stack can determine its respective needs. Thus, no space is wasted for unnecessary cassettes and no space is wasted due to unnecessarily thick stacks of rarely required types of paper.
  • the total capacity of the magazine can be optimally divided by each user according to their individual needs.
  • the stacks are also expediently arranged immovably in the magazine and the separating device has trigger means which can be activated between the stacks.
  • the device does not require any devices that are permanently assigned to the stacks in the position, so that the free insertion of the stacks into the magazine can be realized particularly easily.
  • the movable separating device determines the actual position of the stack in the magazine in order to enable the interaction between the stack and the separating device.
  • the device is preferably arranged in a cabinet body, which forms an elegant, table-high office furniture, on which, for example, the office machine can also be placed.
  • the device is expediently made of this Cabinet body can be moved out laterally, for example by means of telescopic rails, can be pulled out like a drawer, so that there is easy access to the magazine for loading the paper stacks (so-called front loading).
  • the cabinet body has an output slot through which the individual sheets are transferred to the office machine. Due to the arrangement of this output slot and suitable paper guides, the device can be easily adapted to different types of office machines.
  • the device can optionally also be used as a form dispenser, from which a selected form can be removed from the output slot.
  • a movable carriage is expediently provided, which carries at least the movable parts of the separating device. These parts of the separating device are movably attached to the trolley so that they can be moved by the trolley against the stacks when the trolley has moved into the position of the selected stack in a controlled manner.
  • the magazine expediently has a box-shaped receiving space which is formed by four longitudinal rails.
  • a horizontal arrangement of this box-shaped receiving space is preferred, so that the stacks can be placed upright in the magazine.
  • the two upper longitudinal rails can simultaneously serve as running rails for the carriage.
  • the support means designed as support plates for the stacks can be placed in the receiving space in a particularly simple manner.
  • the Troughs are expediently able to be assembled in a modular manner in order to be able to adapt their respective capacity to the need for sheets of the corresponding format.
  • suitable supports for inserting the support plates serving as support means must be provided in the manner of a compartment at different heights.
  • additional guides for the car are also useful.
  • the separating device can be constructed in a wide variety of ways. Essential components of the separating device are always separating means and deducting means.
  • the pull-off means serve to pull the top sheet of the stack away from the stack, while the separating means ensure that only one sheet is always pulled off the stack.
  • Both the removal means and the separating means can be arranged on the carriage and can be moved between the stacks for activation when the carriage has reached the selected position.
  • a pneumatic system can be used, in which a suction bar provided with suction cups is moved between the stacks and a vacuum is applied for activation as soon as the suction cups rest on the uppermost sheet of the stack.
  • the suction bar pulls the top sheet upwards from the stack and thus serves both as a removal means and as a separating means.
  • the pull-off means can be drivable friction means, which is between the stacks of the carriage be moved and grip the top sheet of the selected stack to pull it off the stack.
  • the friction means can be singling rollers, singling fingers or the like, which have a frictional or adhesive surface.
  • the separating means are preferably separating corners, which are likewise moved between the stacks by the carriage and brought to bear against the upper corners of the selected stack.
  • the removal means can be driven singling rollers, singling fingers or the like in the same way.
  • the separating means are assigned to each stack separately.
  • pivotable and spring-loaded separating corners can be attached to the support plates, as is the case, for example, is known from paper cassettes.
  • a particularly advantageous solution consists in a separating frame, which is placed loosely on the stack as a simple, light plastic part and carries the separating corners.
  • This embodiment has the advantage of being simpler and more cost-effective than pivotable spring-loaded separating corners arranged on the support plates.
  • there are no restrictions on the thickness of the stack in this embodiment so that the high flexibility of the device with regard to the number and the receiving volume of the stack is retained.
  • the removal means and the separating means are formed by push frames which are respectively inserted into the magazine in front of the stacks and are preferably freely set in the magazine when the magazine is arranged horizontally.
  • the push frames attack the top sheet of the stack with abrasives.
  • the carriage has actuating means which are movable transversely to its direction of travel with respect to the stacks and act on the associated push frame in the respectively selected stack and move this parallel to the stack surface, so that the top sheet is pulled off by the push frame.
  • This version is particularly suitable for single sheets with high rigidity, in which separating corners cannot be used or can only be used with difficulty. With such single sheets of high rigidity, the push frame causes both the deduction and the separation.
  • the transport means that transport the single sheet pulled from the selected stack to the output slot in order to transfer the single sheet to the office machine can also be designed in a variety of ways.
  • the carriage also serves as a means of transport.
  • the cut sheets pulled from the stack are picked up by the carriage, held in the carriage, and conveyed to the output slot by the carriage.
  • an endless conveyor belt which extends over the entire length of the magazine and which takes over the sheets pulled off the stack, transports them to the output slot and arrives there the office machine passes.
  • a vacuum can be applied to the conveyor belt to hold the sheets under suction.
  • the conveyor belt is preferably electrostatically chargeable, so that the sheets are electrostatically attracted be held on the conveyor belt.
  • An office machine 10 e.g. a data printer, a copier or the like.
  • individual sheets of different types should be able to be fed. These can be single sheets of different formats, different quality or different imprints. Form sets, envelopes or the like can also be involved. Each user should be able to individually select the number of different types of single sheets that should be available and the amount of single sheets stored by each type.
  • a magazine 12 is provided, into which stacks 14 of the different types of single sheets, form sets, envelopes and the like are inserted and held by suitable support means, for example in the form of support plates 16.
  • the support plates 16 can be inserted into the magazine 12 in any number and at any mutual spacing, as a result of which the number and the receiving volume of the stacks 14 are determined.
  • a separating device can be moved in front of the end face of the stack 14, which can be moved to a selected stack in a controlled manner in order to remove a single sheet from this stack and to feed it to the office machine 10 by means of transport.
  • the magazine 12 is expediently installed in a table-high cabinet body 18 and can be pulled out of this for loading the stack 14.
  • the office machine 10 can expediently be placed on the cabinet body 18 and the individual sheets are fed to the office machine 10 through an output slot 20 of the cabinet body 18.
  • a cabinet box 22 can optionally also be provided in the cabinet body 18, which can hold, for example, accessories for the office machine 10 or a further paper supply can.
  • the support plates 16 are inserted vertically into the magazine 12, so that the stacks 14 are essentially vertically one behind the other in the magazine and the separating device is moved horizontally over the stacks. It is of course also possible to arrange the support plates essentially horizontally in the magazine, so that the stacks 14 lie horizontally and are arranged one above the other and the separating device can be moved vertically in front of the stacks. The structure of such an arrangement is readily apparent to those skilled in the art from the following description.
  • the magazine 12 has four profile rails, which extend horizontally over the entire longitudinal extent of the magazine 12 and are screwed to a box-shaped receiving space on the two respective end faces with vertical end plates 24.
  • a profile rail running on the left or right of the magazine 12 is designed as a running rail 26, as can be seen in FIG. 3 in the profile cross section.
  • the two profile rails running left and right on the lower edge are designed as bottom rails 28, the profile cross section of which can be seen in FIG.
  • the bottom rails 28 have inwardly directed bottom webs on which the support plates 16 and the stacks 14 are seated.
  • the entire magazine 12 is supported on its two end faces by means of telescopic rails 30 in the cabinet body 18, so that the magazine 12 can be moved laterally out of the cabinet body 18.
  • the support plates 16 are set in any number and arrangement in the box-shaped receiving space formed from the upper running rails 26 and the lower bottom rails 28.
  • FIGS. 4 and 5 show an exemplary embodiment of these support plates 16.
  • the width of the support plates 16 corresponds to the clear distance between the running rails 26 and the bottom rails 28.
  • the support plates 16 At their upper end, the support plates 16 have tabs 32 which project laterally.
  • the distance of the lugs 32 from the lower edge of the support plates 16 is slightly larger than the vertical distance of the upper edge of the running rails 26 from the inner bottom web of the bottom rails 28.
  • Rubber or plastic inserts 34 are inserted into the upper edges of the running rails 26 and 28 rubber or plastic inserts 36 are also inserted into the bottom webs of the bottom rails. Because of these rubber or plastic inlays 34 and 36, the support plates 16 are held in a non-slip manner when they rest with their lower edge on the bottom web of the bottom rail 28 and with their lugs 32 on the running rails 26 in the said inclined position. If the support plates 16 are inserted in the desired number and position, the desired stacks 14 can be loaded, for which purpose these are inserted into the magazine in front of the support plates 16. The stacks 14 are also seated on the rubber or plastic inserts 36 and are prevented from slipping away from the support plate 16 by them.
  • the support plates 16, as shown in FIGS. 4 and 5, preferably have different heights arranged horizontal slot openings 38. Supporting angles 40 can be hooked into the desired height in these slot openings 38, as shown in FIG. A stack of single sheets of smaller format, of envelopes or the like can then be placed on this support bracket 40, so that the height of the top edge of this stack corresponds to the top edge of the larger-sized stacks 14, which rest on the bottom rails 28, as in FIG. 1 you can see.
  • the support brackets 40 are also provided with rubber or plastic inserts that prevent the stack from slipping away.
  • a carriage 42 is arranged above the box-shaped receiving space of the magazine 12 and extends in a bridge shape across the receiving space.
  • the carriage 42 has downwardly directed cheeks 44 on both sides, which reach downwards outside the running rails 26.
  • Two pairs of rollers 46 are arranged on the inside of each cheek 44. Each pair of rollers 46 abuts a guide web 48 of the profile of the running rail 26 from above or below.
  • the respective upper one of the rollers 46 of a cheek 44 is designed as a guide roller 50 which, with a circumferential groove, sits axially immovably on the guide web 48 of the associated running rail 26. This results in a precisely defined adjustment of the carriage 42 with respect to the running rail 26.
  • support plates 52 are arranged in the carriage 42 on the inside of the cheeks 44, which are connected to one another by a traverse 54.
  • a shaft 56 is rotatably supported in the support plates 52 on both sides of the cross members 54. Both ends of the shafts 56 pass through vertical guide slots 58 of the cheeks 44 through. Outside the cheeks 44, pinions 60 are seated on the ends of the shafts 56, which run in toothed racks 62, which are arranged parallel to the guide slots 58 on the outside of the cheeks 44.
  • An electric motor 64 is flanged to one of the support plates 52 above the cross member 54. The output shaft of the electric motor 64 also projects through a vertical guide slot 58 of the associated cheek 44.
  • a pulley 66 sits on the output shaft of the electric motor 64.
  • a toothed belt 68 runs over the pulley 66 and pulleys 70, which are on the ends of the shafts 56 sit.
  • deflection rollers 72 are attached on the outside at the respective ends of the running rail 26 and the bottom rail 28, via which a drive cable 74 runs and can be driven by a motor 76.
  • the corresponding cheek 44 of the carriage 42 is fastened to the upper run of the drive cable 74, so that the carriage 42 can be moved on the running rails 26 by means of the motor 76.
  • an upwardly directed paper guide shaft 78 with transport rollers 80 is provided in the carriage 42, which can be driven by a motor 82 mounted in the carriage 42.
  • a suction pump 84 is also arranged on the magazine 12 and is connected to a connecting piece 88 of the carriage 42 via a flexible hose 86 and a controllable valve.
  • the connecting piece 88 is connected to a suction bar 90, which is under the cross member 54 on the support plates 52 is attached and extends substantially over the width of the support plates 16.
  • the suction bar 90 is provided with suction cups 92.
  • the device works in the following way: First, the user determines how many different types of paper are needed and how much each type of paper is needed. Accordingly, the support plates 16 are set in the magazine 12. The paper is then loaded in stacks 14. In the case of smaller paper formats, corresponding support brackets 40 are inserted into the support plates 16. The number of support plates 16 and the thickness of the stack 14 is only limited by the requirement that a sufficient distance between each support plate 16 and the subsequent stack 14 must remain free so that the suction bar 90 carried by the carriage 42 engages between the stack 14 can.
  • the carriage 42 is guided once over the entire magazine 12 by means of the motor 76.
  • the exact position of the top sheet of each stack 14 is detected and electronically stored via a photocell 94 attached to the cheek 44 of the carriage 42 or a microswitch in conjunction with a position memory (not shown). This detection process can take place with each separation, whereby the entire paper supply can be kept under control and, if necessary, can be shown on a display.
  • the amount of single sheets loaded per stack could be entered and monitored using a keyboard.
  • a command is transmitted by the computer controlling the office machine 10.
  • This command is converted in a microprocessor (not shown) which controls the device into corresponding mechanical or electromechanical steps which control the energization of the motor 76.
  • the motor drives the carriage 42 via the drive cable 74 and brings it into the desired position.
  • the electric motor 64 is energized and drives the pinions 60 via the toothed belt 68, so that they run downwards in the toothed racks 62 and the carrier plates 52 with the cross member 54 move downward.
  • the suction bar 21 descends between the selected stack 14 and the support plate 16 of the previous stack 14 and rests with the suction cups 92 on the top sheet of the stack 14.
  • valve of the suction pump 84 is opened electronically so that negative pressure is applied to the suction bar 90 and the suction cups 92 via the hose 86.
  • the top sheet of the stack 14 is sucked up.
  • the electric motor 64 is energized in the opposite direction, so that the support plates 52 move upward by means of the oppositely driven pinions 60, and the suction bar 90 with the suction cups 92 pulls off the top sheet of the stack 14 and takes it upward.
  • the sheet is pushed into the paper guide shaft 78 and is bulging with its upper edge against the transport rollers 80.
  • the transport rollers 80 are briefly driven by the motor 82 so that they grip the clamped sheet and clamp it.
  • the motor 76 is then started up so that the carriage 42 is guided to the output slot 20.
  • the sheet clamped between the transport rollers 80 becomes completely withdrawn from the stack 14 and taken away.
  • the valve switches off the vacuum of the suction pump 84 from the suction bar 90 and the suction bar 90 is ventilated. Now the motor 82 is energized again, so that the transport rollers 80 transfer the sheet through the output slot 20 to the office machine 10.
  • a guide bar 96 can be pivoted on both sides of the lower end of the support plates 16, as shown in FIGS. 6 and 7.
  • the guide strips 96 form the lateral boundary of the stack 14.
  • a cross strip 98 connects the free ends of the guide strip 96 in order to keep them stable in the distance delimiting the stack 14.
  • the guide strips 96 are mounted under friction on the support plate 16 so that they remain in any pivot position. As shown in dashed lines in FIG. 6, the guide strips 96 can be pivoted far away from the support plate 16 in order to insert a thick stack 14. Since the guide strips 96 remain in the beveled position due to the bearing friction, they do not hinder the insertion of the stack 14.
  • the guide strips 96 with the transverse strip 98 are pivoted against the stack 14 after the stack 14 has been inserted, as is shown in solid lines in FIG. 6, in order to ensure adequate lateral guidance of the stack 14 through the guide strip 96.
  • FIG. 8 shows a further measure which can be provided, on the one hand, to facilitate loading of the stacks 14 into the magazine and, on the other hand, to have an exact reference position for the side edges of the single sheets for the entire process of feeding single sheets.
  • the box-shaped magazine body can be tilted outwards by a certain angle around the outer bottom rail 28 as a pivot axis. This provides better access for inserting the stacks 14 between the runners 26. This also ensures that the stacks 14 used, with their vertical edge on the right in FIG. 8, reliably rest against the outer running rail 26 and the outer bottom rail 28.
  • This outer running rail 28 and the outer bottom rail 28 thus form an exact edge reference for the stack 14 used. Since the carriage 42, as shown in FIG. 3, is guided exactly on the outer running rail 26 with the guide roller 50, this exact edge reference also remains receive the take-off of the single sheets pulled from the stack 14 into the carriage 42 and thus upon delivery to the office machine 10.
  • FIG. 9 A second exemplary embodiment is shown in FIG. This second exemplary embodiment differs from the first exemplary embodiment described above only in the design of the separating device. Therefore, only the carriage 42 with the separating device is shown in FIG. With regard to the components of the device (not shown) and their mode of operation, reference is made to the preceding description. Reference is also made to the preceding description insofar as FIG. 9 corresponds to the preceding exemplary embodiment, in particular FIG. 2.
  • a separating shaft 100 the frictionful separating rollers 102, is mounted in the support plates 52 of the carriage 42 below the crossmember 54 wearing.
  • the separating shaft 100 is driven by the electric motor 64 via a toothed belt 104.
  • a freewheel 106 causes the separating shaft 100 to be driven only when the electric motor 64 is energized in the direction of rotation in which the support plates 52 are moved downward.
  • the belt pulley 66 is seated on the output shaft of the electric motor 64 by means of a slip clutch, so that the separating shaft 100 can still be driven even when the support plates 52 have reached their lower end position in the guide slots 58.
  • plungers 110 which are spring-loaded by a spring 108, are mounted on the support plates 52 at the positions corresponding to the upper corners of the stack 14, each of which carries a separating corner 112 at its front end facing the stack 14.
  • the device works as follows: To feed a single sheet, the carriage 42 is moved to the selected stack 14 in a controlled manner. The electric motor 64 is then energized so that the support plates 52 are moved downward. The separating shaft 100 is driven with the separating rollers 102 via the freewheel 106 and the toothed belt 104, the separating rollers 102 rotating counterclockwise in the illustration in FIG. 9. When the support plates 52 have reached their lower stop position, their drive is interrupted due to the slip clutch. The separating shaft 100, which is now located between the selected stack 14 and the support plate 16 of the stack arranged in front, is driven further. Now the carriage 42 is against the stack 14 driven. The separating corners 112 are cushioned on the upper corners of the stack 14.
  • the separating rollers 102 come into frictional contact with the uppermost sheet of the stack 14 and push it upwards.
  • the top sheet snaps over the singling corners 112 and is pushed into the paper guide shaft 78 until it abuts the transport rollers 80 with its upper edge under bulging bulge.
  • the transport rollers 80 are then driven by the motor 82 to grasp and hold the sheet.
  • the support plates 52 are now raised again by means of the electric motor 64, the separating rollers 102 not being driven due to the freewheel 106.
  • the carriage 42 is then moved to the output slot 20 where the removed sheet is transferred to the office machine 10.
  • FIGS. 10 to 13 A third exemplary embodiment is shown in FIGS. 10 to 13. This third exemplary embodiment largely corresponds to the second exemplary embodiment in FIG. 9, so that reference is made to the preceding description and only the differences from the exemplary embodiment in FIG. 9 are explained below.
  • the two singling corners 112 are attached to the plungers 110. Since the singling corners 112 are thus arranged in a predetermined fixed position, only single sheets of a single predetermined width, which corresponds to the distance between the singling corners 112, can be used.
  • a separating frame 114 is on the stack in the embodiment of Figures 10 to 13 14 put on.
  • the separating frame 114 is shown in detail in FIGS. 11 to 13.
  • the separating frame 114 which is preferably a one-piece plastic injection molded part, has an end wall 116 with which it rests on top of the stack 14. From this end wall 116, side walls 118 project downwards, which abut the side edges of the stack 14 and guide the separating frame 114 on the stack 14.
  • the end wall 116 is stepped in height, as can be seen most clearly in FIG. 11, and projects in steps from the upper edge of the stack 14, as can be seen most clearly in FIG. 12.
  • the end wall 116 has a central section 116a which has the lowest height and projects the most upward when the separating frame 114 rests on the top of the stack 14.
  • a section 116b adjoins on both sides with a somewhat greater height, which projects less far.
  • an outer section 116c which has the greatest height, projects the least far and adjoins the side walls 118.
  • Separating corners 120 are formed on the upper outer corners of the end wall sections 116a, 116b and 116c and protrude inward from the end wall 116.
  • the width of the end wall sections 116a, 116b and 116c correspond to the widths of different common paper formats.
  • the separating frame 114 If the separating frame 114 is thus placed on a paper stack 14 of narrow width, the separating frame 114 rests on this stack with its central end wall section 116a, as shown in FIG. 13a, and the separating corners of this central end wall section 116a become effective for the separating by the separating rollers 102.
  • the separating frame 114 sits with its central end wall section 116b on the Stack 14 as shown in Figure 13b.
  • the separation corners 120 of this central end wall section 116b are effective for the separation.
  • the separating frame 114 rests with its outer end wall section 116c on the stack 14, as shown in FIG. 13c, and the outermost separating corners 120 take effect.
  • the gradation of the height of the end wall 116 has the effect that, in the case of singulation by singling corners 120 lying further outside, the sheet which occasionally jumps out of these singling corners 120 is not impeded by the singling corners 120 lying further inside.
  • the plungers 110 which in this embodiment do not have any singling corners, push the singling frame 114 against the stack 14 when the carriage 42 with the singling rollers 102 is moved against the stack 14, so that the singling corners 120 always lie tightly on the corners of the stack 14 how it is required for reliable separation.
  • the support plates 16 in this third embodiment have the shape shown in FIGS. 14 and 15, in which the upper edge of the support plates 16 is stepped in accordance with the different protrusion of the end wall 116.
  • the separating frame 114 can be pushed freely over the support plates 16 as the thickness of the stack 14 decreases.
  • all paper formats are supported by the support plates 16 up to the upper edge of the sheets, which is necessary for the separation by the separation corners 120.
  • the side walls 118 can be formed as tongues projecting against the support plate 16, which with decreasing thickness of the stack 14 immerse in corresponding openings in the support plate 16.
  • FIGS. 16 and 17 A fourth exemplary embodiment is shown in FIGS. 16 and 17.
  • this exemplary embodiment corresponds to the exemplary embodiments described above, the same reference numerals are used and reference is made to the preceding description.
  • the fourth exemplary embodiment differs from the exemplary embodiments described above by the design of the separating device.
  • Beneath the running rails 26 and parallel to them are 12 support rails 122 on both sides in the magazine.
  • a push frame 124 is inserted, which can consist, for example, of a plastic plate, a wire frame or a stamped metal frame.
  • the push frame 124 has on its lower edge laterally protruding lugs 126 with which it stands on the support rails 122. From the support rails 122, the push frame 124 stands up to a medium height and has friction means 128 on its upper transverse edge. The push frames 124 rest with their friction means 128 at a moderately acute angle on the top sheet of each stack 14.
  • the support plates 52 of the carriage 42 are each extended downwards by legs 130 and each engage with an inward projection 132 at the level of the support rails 122 from the outside under the lugs 126 of the push frame 124, as shown in FIG. 17.
  • the device works in the following way:
  • the carriage 42 is driven to the selected stack 14 in a controlled manner as described above.
  • the support plates 52 are moved downward by the electric motor 64, as shown in FIG. 16, so that the projections 132 of the legs 130 of these support plates 52 are at the level of the support rails 122 under the lugs 126 of the push frame 124, as shown in FIG Figure 17 is shown.
  • the electric motor 64 is energized and the support plates 52 are raised.
  • the projections 132 come into engagement with the lugs 126 and lift the push frame 124.
  • the push frame 124 thereby frictionally pushes the top sheet of the stack 14 upward with its friction means 128, so that it enters the paper guide shaft 78 and bulges against the transport rollers 80 with its bulging bulge.
  • the transport rollers 80 are briefly driven by energizing the motor 82 so that they draw in and clamp the upper edge of the sheet.
  • the support plates 52 are then lowered again by means of the electric motor 64 and the carriage 42 can be moved to the output slot 20, wherein it completely pulls off the sheet gripped by the transport rollers 80 from the stack 14 and transfers it to the office machine 10 at the output slot 20.
  • the projections 132 are chamfered on their upper side, which comes into contact with the lugs 126, in the direction of the stack 14.
  • the lugs 126 slide against the stack 14 on this bevel, so that the push frame 124 inevitably follows the decreasing thickness of the stack 14.
  • spacing projections 134 which define the distance of the lower edge of the push frame 124 from the stack 14 and thus ensure that the push frame 124 with its friction means 128 always at the same optimal angle of attack on the top sheet of the stack 14th is present.
  • the separation according to the embodiment of FIGS. 16 and 17 is particularly suitable for single sheets with high rigidity, such as Envelopes that cannot be separated or only with difficulty with separation corners.
  • the separation methods of the second and third exemplary embodiments can also be combined with the separation method of the fourth exemplary embodiment if single sheets of low rigidity as well as envelopes or the like are fed from the same magazine should be.
  • the carriage 42 carries the separating device of the second or third exemplary embodiment and, in addition, the support plates 52 are formed by legs 130 with projections 132 according to the fourth exemplary embodiment.
  • the paper stacks are placed in the magazine in the usual way. If a stack of single sheets of high stiffness, e.g. a stack of envelopes inserted into the magazine, this stack is additionally provided with a push frame 124.
  • the separating process proceeds in the manner as described above for the second and third exemplary embodiments was explained.
  • the distance between the surface of an envelope stack 14 and the support plate 16 of the preceding stack 14 must, however, be made larger than the distance between the stacks 14 of thinner paper.
  • the support plates 52 between the envelope stack 14 and the support plate 16 of the previous stack are lowered into the lower position without the separation corners 112 and the separation rollers 102 coming into contact with the stack of envelopes. If those of the support plates 52 have been lowered so far that the projections 132 are at the level of the support rails 122, the carriage 42 is moved further onto the stack of envelopes 14 and the projections 132 pass under the lugs 126 of the push frame 124.
  • the support plates 52 can now be raised to push the uppermost envelope over the push frame 124 to the transport rollers 80 of the carriage 42.
  • FIG. 18 shows a further means of transport, by means of which the occasionally removed sheets can be conveyed to the output slot 20.
  • the carriage 42 has any of the separating devices described above.
  • the carriage 42 has no paper guide shaft 78 and none through one Motor 82 driven transport rollers 80.
  • An endlessly rotating conveyor belt 136 which extends over the entire length of the magazine 12 and is driven by a motor 138, is arranged above the stack 14.
  • the conveyor belt 136 consists of an electrically insulating material, for example a plastic, and is electrostatically charged by a rotating brush 140.
  • the individual sheets pulled off the selected stack 14 are pushed by the separating device from below against the strongly electrostatically charged conveyor belt 136 and held there by the electrostatic attraction.
  • the rotating conveyor belt 136 conveys the electrostatically adhering individual sheets to a paper guide shaft 142 arranged at the reversal point of the conveyor belt 136 below the discharge slot 20 out where the sheet is passed to the office machine 10.
  • the trolley 42 does not have to be driven to the output slot 20 after each separation in order to transfer the separated sheet to the office machine 10. Rather, after the sheet has been transferred to the conveyor belt 136, the carriage 42 can be moved directly to the next selected stack 14 or can be stopped if several sheets are to be pulled from the same stack 14 one after the other.
  • FIGS. 19 to 21 A further embodiment of the device is shown in FIGS. 19 to 21.
  • tubs 146 are inserted into the box-shaped receiving space of the magazine 12.
  • the stacks 14 and the support plates 16 are placed in these trays 146.
  • Troughs 146 are simple sheet metal or plastic parts and have a U-shaped box profile that is open at the top and in the longitudinal direction of magazine 12 on the two end faces.
  • outwardly projecting flanges 148 are formed, with which the suspended tubs 146 rest on the running rails 26.
  • the clear width and height of the tubs 146 correspond to the format of the individual sheets used in each case.
  • the support plates 16 stand with their lower edge on the bottom of the tub 146 and sit with their side tabs 32 on top of the flanges 148 of the tubs.
  • the tubs 146 can be assembled in a modular manner from individual sections which are joined together in the longitudinal direction of the magazine 12.
  • the trays 146 In order to prevent the leaves standing in the trays 146 from slipping between the butt joints of the adjoining sections of the tray 146, the trays 146 have protrusions 150 pointing in the longitudinal direction on one edge of their base and corresponding cutouts 152 on their opposite edge of the base.
  • the projections 150 of one section engage in the cutouts 152 of the adjoining section, so that there is no continuous butt joint in the bottom of the tubs 146 through which the leaves could slip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Vending Machines For Individual Products (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Claims (35)

  1. Dispositif d'émission automatique de feuilles séparées ou produits analogues pour une machine de bureau, comprenant plusieurs piles (14) de feuilles séparées, gui sont disposées parallèlement les unes aux autres, les unes derrière les autres, en laissant un intervalle, et s'appuient sur le dos de moyens d'appui (16), les différentes feuilles séparées pouvant être extraites séparément et sélectivement de l'une des piles (14) pour être transférées par un moyen de transfert jusgu'à un point d'émission (20), caractérisé en ce que les moyens d'appui (16) se placent en nombre choisi librement et suivant un intervalle choisi librement dans un magasin (12), l'écartement entre les moyens d'appui (16) définissant le volume disponible pour les différentes piles (14).
  2. Dispositif selon la revendication 1, caractérisé par une installation de séparation montée mobile devant la face frontale des piles fixes (14), cette installation comportant des moyens de séparation et des moyens d'extraction susceptibles d'être activés entre les piles (14).
  3. Dispositif selon les revendications 1 et 2, caractérisé par un chariot (42) mobile le long du magasin (12) et portant les pièces de l'installation de séparation, qui sont mobiles transversalement à la direction de déplacement, par rapport à la pile (14).
  4. Dispositif selon la revendication 3, caractérisé en ce que le chariot (42) est guidé sur des rails de roulement (26) du magasin (12).
  5. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que le magasin (12) est monté horizontalement et les piles (14) sont disposées de champ dans le magasin (12).
  6. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que les moyens d'appui de la pile (14) dans le magasin (12) sont des plaques d'appui (16) contre lesquelles s'appuient les piles (14) par leur côté arrière.
  7. Dispositif selon les revendications 5 et 6, caractérisé en ce que les plaques d'appui (16) se placent de champ dans le magasin (12) et sont disposées debout dans le magasin par leur bord inférieur, alors que les becs (32) en saillie latéralement à proximité de leur bord supérieur, s'appuient sur des rails longitudinaux ou des rails de roulement (26) du magasin (12), en faisant un angle d'inclinaison par rapport à la verticale.
  8. Dispositif selon au moins la revendication 5, caractérisé en ce que le magasin (12) est intégré à un bâti d'armoire (18) et peut s'extraire latéralement du bâti (18).
  9. Dispositif selon la revendication 8, caractérisé en ce que le magasin (12) peut s'extraire du bâti (18) du magasin par des rails télescopiques (30).
  10. Dispositif selon au moins l'une des revendications 4 à 7, caractérisé en ce que le magasin (12) comporte un volume de réception en forme de caisson constitué par quatre rails longitudinaux maintenus aux extrémités par des plaques terminales (24), et les deux rails longitudinaux supérieurs constituent les rails de roulement (26) du chariot (42) alors que les deux rails longitudinaux inférieurs ou rails inférieurs (28) constituent le fond du magasin (12).
  11. Dispositif selon au moins la revendication 3, caractérisé en ce que les moyens d'extraction et les moyens de séparation de l'installation de séparation sont montés sur le chariot (42), de manière mobile par rapport à la pile (14).
  12. Dispositif selon au moins la revendication 11, caractérisé en ce que les moyens d'extraction et les moyens de séparation se composent d'une installation d'aspiration mobile entre les piles (14) et par rapport à la feuille de dessus de la pile (14) chaque fois choisie.
  13. Dispositif selon au moins la revendication 12, caractérisé en ce que l'installation d'aspiration comprend une poutre d'aspiration (90) avec des ventouses (92) coopérant avec la feuille séparée, avec commande par soupape alimentant les ventouses en dépression par une pompe aspirante (84) équipant le magasin (12).
  14. Dispositif selon au moins la revendication 11, caractérisé en ce que les moyens d'extraction sont des moyens de friction actionnés par un moteur (64) et déplacés entre la pile (14) et par rapport à la feuille séparée de dessus de la pile (14) chaque fois choisie, et en ce que les moyens de séparation sont des coins séparateurs (112) mobiles par rapport au coin supérieur de chaque pile (14) choisie.
  15. Dispositif selon la revendication 14, caractérisé en ce que les moyens de frottement sont des galets séparateurs (102).
  16. Dispositif selon au moins la revendication 3, caractérisé en ce que les moyens d'extraction sont montés sur le chariot (42) de manière mobile par rapport à la pile (14), et des moyens de séparation particuliers sont associés à chaque pile (14) du magasin (12).
  17. Dispositif selon la revendication 16, caractérisé en ce que les moyens séparateurs sont montés pivotants sur les plaques d'appui (16) et par rapport aux coins séparateurs, par ressort, contre la pile (14).
  18. Dispositif selon la revendication 16, caractérisé en ce que les moyens de séparation sont des coins séparateurs (120) formés par des cadres séparateurs (114) montés librement sur la pile (14).
  19. Dispositif selon la revendication 18, caractérisé en ce que les cadres séparateurs (114) comportent plusieurs paires décalées de coins séparateurs (120) avec un écartement en largeur différent.
  20. Dispositif selon au moins la revendication 3, caractérisé en ce que les moyens d'extraction et les moyens de séparation sont prévus chaque fois entre les piles (14) et agissent sur la feuille séparée du dessus de la pile (14), et en ce que le chariot (42) comporte des moyens d'actionnement mobiles au moins pour les moyens d'extraction, et qui agissent sur les moyens d'extraction de la pile (14) chaque fois choisie et la déplacent.
  21. Dispositif selon la revendication 20, caractérisé en ce que les moyens d'extraction et les moyens de séparation sont formés par des cadres de poussée (124) agissant par moyens de frottement (128) contre la feuille séparée du dessus de la pile (14), en étant mobiles par les moyens de manoeuvre parallèlement à la surface de la pile (14).
  22. Dispositif selon au moins les revendications 5 et 21, caractérisé en ce que les cadres de poussée (124) se trouvent librement devant les piles (14) dans le magasin (12) et peuvent être enlevés par les moyens de manoeuvre.
  23. Dispositif selon la revendication 22, caractérisé en ce que les cadres de poussée (124) comportent des becs (126) qui dépassent de chaque côté de la largeur de la pile (14), et les moyens de manoeuvre sont des branches (130) montées mobiles dans le chariot (42), ces moyens viennent prendre sous les becs (126) par des parties en saillie (132).
  24. Dispositif selon au moins la revendication 3, caractérisé en ce que les moyens de transport pour les feuilles séparées extraites de la pile (14) chaque fois choisie, sont constitués par le chariot (42) et par une installation de fixation réalisée sur celui-ci pour les feuilles séparées.
  25. Dispositif selon la revendication 24, caractérisé en ce que le moyen de fixation comporte des galets d'entraînement (80) fixant en les pinçant les feuilles séparées, ces galets étant entraînés par un moteur (82).
  26. Dispositif selon au moins l'une des revendications 1 à 23, caractérisé en ce que les moyens de transport comportent une bande transporteuse (136) tournant sans fin devant la face frontale de la pile (14) et s'étendant sur toute la longueur du magasin (12).
  27. Dispositif selon la revendication 26, caractérisé en ce que la bande transporteuse (136) peut se charger de manière électrostatique.
  28. Dispositif selon au moins la revendication 6, caractérisé par des cornières d'appui (40) prévues dans les plaques d'appui (16) pour les piles (14), ces cornières pouvant se mettre dans la plaque d'appui (16) à des distances différentes du bord supérieur.
  29. Dispositif selon au moins la revendication 6, caractérisé en ce que les plaques d'appui (16) comportent des baguettes de guidage (96) appliquées de chaque côté contre la pile (14).
  30. Dispositif selon au moins la revendication 5, caractérisé en ce que les piles (14) sont disposées debout dans des bacs (146) placés dans le magasin (12) et dont la hauteur et la largeur correspondent au format des feuilles séparées.
  31. Dispositif selon la revendication 30, caractérisé en ce que les bacs (146) peuvent s'accrocher en s'appuyant par des brides (148) en saillie par rapport à leurs bords supérieurs, sur des rails longitudinaux ou des rails de roulement (26) du magasin (12).
  32. Dispositif selon la revendication 30 ou 31, caractérisé en ce que les bacs (146) ont un profil de caisson ouvert dans la direction longitudinale du magasin (12).
  33. Dispositif selon la revendication 32, caractérisé en ce que les bacs (146) sont des segments séparés susceptible d'être réunis de manière modulaire dans la direction longitudinale du magasin (12).
  34. Dispositif selon la revendication 33, caractérisé en ce que les différents segments des bacs (146) ont des bords adjacents dans la surface du fond, qui sont dentés.
  35. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que le magasin est vertical et les piles sont essentiellement horizontales.
EP90121762A 1989-12-28 1990-11-14 Dispositif pour alimentation automatique de feuilles individuelles et similaire Expired - Lifetime EP0434956B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3943136 1989-12-28
DE3943136A DE3943136A1 (de) 1989-12-28 1989-12-28 Vorrichtung zur automatischen zufuhr von einzelblaettern und dergleichen zu einer bueromaschine

Publications (3)

Publication Number Publication Date
EP0434956A2 EP0434956A2 (fr) 1991-07-03
EP0434956A3 EP0434956A3 (en) 1992-07-08
EP0434956B1 true EP0434956B1 (fr) 1995-09-20

Family

ID=6396534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121762A Expired - Lifetime EP0434956B1 (fr) 1989-12-28 1990-11-14 Dispositif pour alimentation automatique de feuilles individuelles et similaire

Country Status (5)

Country Link
US (1) US5193794A (fr)
EP (1) EP0434956B1 (fr)
JP (1) JP2630681B2 (fr)
AT (1) ATE128094T1 (fr)
DE (2) DE3943136A1 (fr)

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EP0879779B1 (fr) * 1997-05-21 2005-12-07 Canon Kabushiki Kaisha Dispositif avec plusieurs cassettes de feuilles et des mécanismes d'alimentation qui sont adaptés aux caractéristiques des feuilles emmagasinées
GB2343441A (en) * 1998-11-09 2000-05-10 Rue De Int Ltd Adjustable sheet store with flexible base
US6454476B1 (en) 1999-04-14 2002-09-24 Hewlett-Packard Company Apparatus and method for picking and feeding print media sheets
JP4423368B2 (ja) * 2003-12-19 2010-03-03 旭精工株式会社 カード状商品の自動払出装置およびその方法
JP4436792B2 (ja) * 2005-07-29 2010-03-24 日本電産サンキョー株式会社 カード処理装置
JP5938328B2 (ja) * 2012-07-26 2016-06-22 株式会社小田原機器 カード発券装置

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EP0332794A1 (fr) * 1987-03-12 1989-09-20 MANNESMANN Aktiengesellschaft Dispositif pour amener des feuilles de papier individuelles au cylindre de pression d'une machine de bureau, notamment d'une imprimante à matrice

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Also Published As

Publication number Publication date
ATE128094T1 (de) 1995-10-15
EP0434956A3 (en) 1992-07-08
JPH04223946A (ja) 1992-08-13
DE3943136A1 (de) 1991-07-04
EP0434956A2 (fr) 1991-07-03
DE59009685D1 (de) 1995-10-26
JP2630681B2 (ja) 1997-07-16
US5193794A (en) 1993-03-16
DE3943136C2 (fr) 1993-01-14

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