EP0434956A2 - 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
EP0434956A2
EP0434956A2 EP90121762A EP90121762A EP0434956A2 EP 0434956 A2 EP0434956 A2 EP 0434956A2 EP 90121762 A EP90121762 A EP 90121762A EP 90121762 A EP90121762 A EP 90121762A EP 0434956 A2 EP0434956 A2 EP 0434956A2
Authority
EP
European Patent Office
Prior art keywords
magazine
stacks
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.)
Granted
Application number
EP90121762A
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German (de)
English (en)
Other versions
EP0434956A3 (en
EP0434956B1 (fr
Inventor
Helmut Steinhilber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
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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Publication of EP0434956B1 publication Critical patent/EP0434956B1/fr
Anticipated expiration legal-status Critical
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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
    • B65H3/44—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 feeding of single sheets and the like, in particular to 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 stacked in a magazine, separated 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, that is to say 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 moved 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 when there are a large number of stacks.
  • the number of stacks that can be provided is determined in this known device by the number of receptacles and displacement devices for the cassettes.
  • the height of the cassettes also determines the maximum holding volume for each individual stack.
  • 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 his 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 which are permanently assigned to the stacks in the position, so that the free insertion of the stacks into the magazine can be implemented 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 put together in a modular manner in order to be able to adapt their respective capacities 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 are 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 also 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 so that the high flexibility of the device with regard to the number and the receiving volume of the stack is retained.
  • the trigger 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 which 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 copying machine 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 are to 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 stacks 14, which can be driven in a controlled manner to a respectively selected stack in order to remove a single sheet from this stack and 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 single sheets are fed to the office machine 10 through an output slot 20 of the cabinet body 18.
  • a cabinet box 22 can optionally 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 opposed 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.
  • 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 floor rails 28.
  • the support plates 16 At their upper end, the support plates 16 have tabs 32 projecting laterally.
  • the distance of the lugs 32 from the lower edge of the support plates 16 is somewhat 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 rubber or plastic inserts 36 are also inserted into the bottom webs of the bottom rails 28. Because of these rubber or plastic inlays 34 and 36, the support plates 16 are held in a non-slipping 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 hung into these slot openings 38 at the desired height, as shown in FIG. A stack of single sheets of smaller format, 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 which 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 sit 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 to 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 and 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:
  • the user determines how many different types of paper are required and how much each type of paper is required. 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 photo cell 94 attached to the cheek 44 of the carriage 42 or a microswitch in connection 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. In addition, 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) that controls the device into corresponding mechanical or electromechanical steps that 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 then 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 crossmember 54 move downward.
  • the suction bar 21 lowers between the selected stack 14 and the support plate 16 of the preceding 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 vacuum 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 the top sheet of the stack 14 away from it and takes it upwards.
  • 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 activated so that the carriage 42 is guided to the discharge 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.
  • 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 strip 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 transverse 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 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 that can be provided, on the one hand, to make it easier to load 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 magazine Moved out of the cabinet body 18 by means of the telescopic rails 30, as shown in FIG. 8 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 on 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 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:
  • 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 with the separating rollers 102 is driven via the freewheel 106 and the toothed belt 104, the separating rollers 102 rotating counterclockwise in the illustration in FIG. 9.
  • 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 singling corners 112 are cushioned against 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 front 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 lies on 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 small width, the separating frame 114 rests on this stack with its central end wall section 116a, as shown in FIG. In the case of a paper format of medium width, 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. In the case of a paper format of the greatest width, 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 carry 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 this is necessary 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. Insofar as this exemplary embodiment corresponds to the exemplary embodiments described above, the same reference symbols 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 arranged 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 pushing 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 outside under the lugs 126 of the push frame 124, as shown in FIG. 17.
  • 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 raise 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 top edge bulging out.
  • 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 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 exemplary 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 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 are 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 drive 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 sheets which have been pulled off individually 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 which have been 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.
  • the sheet is separated from the conveyor belt 136 and by means of driven transport rollers 144 in the paper guide shaft 142 to 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.
  • the tubs 146 are simple sheet metal or plastic parts and have a U-shaped box profile, which is open at the top and in the longitudinal direction of the magazine 12 on the two end faces.
  • On the upper edges of the upwardly directed side parts of the tubs 146 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 lugs 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 have protrusions 150 pointing longitudinally on one edge of their base and corresponding cutouts 152 on their opposite edge of the base.

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)
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 true EP0434956A2 (fr) 1991-07-03
EP0434956A3 EP0434956A3 (en) 1992-07-08
EP0434956B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000027735A2 (fr) * 1998-11-09 2000-05-18 De La Rue International Limited Ensemble pour stockage de feuilles

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Publication number Priority date Publication date Assignee Title
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
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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EP0313294A2 (fr) * 1987-10-23 1989-04-26 Mag-Tek, Inc. Dispositif de maniement des documents
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
EP0193797B1 (fr) * 1985-02-25 1990-03-21 Alcatel Satmam Distributeur automatique d'articles plats

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US3807723A (en) * 1972-08-17 1974-04-30 Gen Binding Corp Collator
JPS5551817B2 (fr) * 1973-07-02 1980-12-26
JPS6037018B2 (ja) * 1975-11-06 1985-08-23 株式会社リコー 給紙装置
JPS6333866Y2 (fr) * 1981-04-13 1988-09-08
JPS5855954U (ja) * 1981-10-12 1983-04-15 株式会社ピーエフユー 印字装置の自動給紙装置
DE3218189A1 (de) * 1982-05-14 1983-11-17 Rotex Maschinen GmbH, 5600 Wuppertal Vorrichtung zum entnehmen und ablegen von flaechenhaften teilen, insbesondere textilteilen
ZA836666B (en) * 1982-09-21 1984-06-27 Xerox Corp Sheet feeding apparatus
JPS6040350A (ja) * 1983-08-12 1985-03-02 Fuji Xerox Co Ltd 枚葉紙供給装置
JPS60148843A (ja) * 1984-01-11 1985-08-06 Fuji Xerox Co Ltd 複写機等に用いられる給紙装置
JPS60153352A (ja) * 1984-01-20 1985-08-12 Fuji Xerox Co Ltd 複写機等に用いられる給紙装置
JPS60197542A (ja) * 1984-03-19 1985-10-07 Ricoh Co Ltd 転写紙供給装置
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EP0193797B1 (fr) * 1985-02-25 1990-03-21 Alcatel Satmam Distributeur automatique d'articles plats
EP0211307A2 (fr) * 1985-07-22 1987-02-25 OMRON Corporation Dispositif pour la distribution de documents
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
EP0313294A2 (fr) * 1987-10-23 1989-04-26 Mag-Tek, Inc. Dispositif de maniement des documents

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000027735A2 (fr) * 1998-11-09 2000-05-18 De La Rue International Limited Ensemble pour stockage de feuilles
WO2000027735A3 (fr) * 1998-11-09 2000-10-05 Rue De Int Ltd Ensemble pour stockage de feuilles

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
DE59009685D1 (de) 1995-10-26
EP0434956B1 (fr) 1995-09-20
JP2630681B2 (ja) 1997-07-16
US5193794A (en) 1993-03-16
DE3943136C2 (fr) 1993-01-14

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