EP0718232B1 - Vorrichtung zum Aufnehmen von Papierbogen - Google Patents

Vorrichtung zum Aufnehmen von Papierbogen Download PDF

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Publication number
EP0718232B1
EP0718232B1 EP19950119488 EP95119488A EP0718232B1 EP 0718232 B1 EP0718232 B1 EP 0718232B1 EP 19950119488 EP19950119488 EP 19950119488 EP 95119488 A EP95119488 A EP 95119488A EP 0718232 B1 EP0718232 B1 EP 0718232B1
Authority
EP
European Patent Office
Prior art keywords
pickup
paper sheet
paper sheets
mail
picked
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
EP19950119488
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English (en)
French (fr)
Other versions
EP0718232A1 (de
Inventor
Hidenari c/o Intellectual Prop. Div. Mori
Toshiki c/o Intellectual Prop. Div. Mori
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.)
Toshiba Corp
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Toshiba Corp
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Publication date
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Publication of EP0718232A1 publication Critical patent/EP0718232A1/de
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Publication of EP0718232B1 publication Critical patent/EP0718232B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
    • B07C1/04—Forming a stream from a bulk; Controlling the stream, e.g. spacing the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed

Definitions

  • the present invention relates to a paper sheet pickup apparatus for use in a paper sheet processing apparatus for processing (e.g., selecting and stamping) paper sheets, such as mails.
  • a mail processing apparatus comprises an automatic selecting section for selecting standard mails, having predetermined thickness and width, from a number of mails put into the apparatus. It also comprises a buffer section for temporarily storing the standard mails selected by the automatic selecting section.
  • the buffer section includes a mail pickup apparatus which picks up a piece of mail from the mails stored therein and supplies it to an automatic reading section.
  • the mail pickup apparatus for example, while a transfer belt is running, a piece of mail in contact with the belt is adhered to the belt, so that mails can be picked up one by one.
  • the following method has been employed. First, the rear end of a first picked-up mail piece is detected by a detector, a second mail piece is picked up, and the front end of the second mail piece is detected, so that the distance between the first and second mail pieces is detected. The distance is maintained by switching the rotation rate of the transfer belt for picking up mails between a normal rate and a reduced rate.
  • US-A-4 541 624 discloses a paper sheet pickup apparatus in accordance with the preamble of claims 1 and 4. There, a plurality of flat articles such as postcards and envelopes are arranged in an upright stack and are fed one by one to a reading and sorting section. The flat articles are fed while keeping a short, constant interval between the flat articles which are fed out.
  • An object of the present invention is to provide a paper sheet pickup apparatus in which the rear ends of paper sheets are aligned and the paper sheets are picked up one by one at regular intervals, so that the apparatus can be smaller and occupy less space as compared to the conventional apparatus.
  • the load applied to the driving mechanism is reduced, and the lifetime of the machine is increased. Further, paper sheets can be picked up with less variation and the machine performance can be stable.
  • a paper sheet pickup apparatus comprising the features mentioned in claim 1 or 4.
  • a paper sheet pickup apparatus of the present invention is embodied as a mail pickup apparatus incorporated in a mail selecting, aligning and stamping apparatus.
  • the mail selecting, aligning and stamping apparatus comprises: a supply section 10 for supplying a number of mail pieces P of various thicknesses and widths to a subsequent stage; a thickness selecting section 12 for selecting mail pieces P having a standard thickness from all the mail piece P supplied to the supply section 10; a width selecting section 14 for selecting mail pieces having a standard width from the mail pieces P having the standard thickness selected by the thickness selecting section 12; a detecting section 22 including a stacker feeder 16 for temporarily storing standard mail pieces P having standard thickness and width and first and second reading sections 18 and 20 for reading information from the mail pieces P; a stamping section 24 for stamping the mail pieces P; and a sorting and storing section 26 for sorting and storing the mail pieces P in accordance with the information read by the first or second reading section 18 or 20.
  • the mail selecting, aligning and stamping apparatus also comprises, in a central portion, i.e., near the detecting section 22, a main operation panel 28 for supplying various operation instructions to the apparatus and displaying operation modes, operation errors and the like. It further comprises, near the connecting portion between the stamping section 24 and the sorting and storing section 26, a sub-operation panel 30 for displaying operation modes, operation errors and the like.
  • the mail selecting, aligning and stamping apparatus includes switches (not shown), so that the thickness selecting section 12, the width selecting section 14 and the detecting section 22 can be activated or stopped individually.
  • the supply section 10 has a hopper 32 for collectively receiving a number of mail pieces P and a transfer belt for transferring the mail pieces P upward obliquely to the thickness selecting section 12.
  • the thickness selecting section 12 divides the mail pieces P transferred by the transfer belt 33 into mail pieces P of a standard thickness and mail pieces P of non-standard thicknesses.
  • the mail pieces P of the standard thickness selected by the thickness selecting section 12 are dropped onto a conveyor 34 through a drop path (not shown).
  • the mail pieces P of the non-standard thicknesses are discharged to a reject section 35.
  • the width selecting section 14 has a stand-up converting section 36 for standing the mail pieces P supplied through the conveyor 34; a transfer path 38 for transferring the mail pieces P stood up by the stand-up converting section 36; selecting portions 40a, 40b, 40c and 40d for selecting mail pieces P of non-standard widths from the mail pieces P transferred through the transfer path 38; and a direction aligning section 42 for aligning edges of the mail pieces P in the longitudinal and lateral directions.
  • the mail pieces P of the non-standard widths selected by the selecting portions 40a, 40b, 40c and 40d are discharged to a reject section through a discharging transfer path and a shooter (not shown). A mail piece P which includes a foreign matter is also rejected by the width selecting section 14.
  • the detecting section 22 has a transfer path 44 for transferring the standard mail pieces P selected by the width selecting section 14 to the stacker feeder 16 serving as a first storage section. It also has an auxiliary storage section 46 for temporarily storing the mail pieces P transferred from the width selecting section 14, when the stacker feeder 16 is full or a transfer defect occurs (for example, in a case where a gap between successive mail pieces is smaller than a preset value).
  • the stacker feeder 16 includes a first pickup unit 50 for picking up, one by one, the mail pieces P stored in the stacker feeder 16, and supplying them at regular intervals through a transfer path 48 to the first reading section 18.
  • a local feeder 52 is provided to store standard mail pieces P when the detecting section 22 is directly used without using the supply section 10, the thickness selecting section 12 and the width selecting section 14.
  • the local storage section 52 includes a second pickup unit 54 for picking up the stored mail pieces P one by one, and supplying them at regular intervals through the transfer path 48 to the first reading section 18.
  • the first reading section 18 of the detecting section 22 has first to third detecting portions 56a, 56b and 56c to detect objects of detection (e.g., stamps, contrast bars and classifying information) on the mail pieces P transferred through the transfer path 48.
  • a reversing section 58 is provided between the first and second reading sections 18 and 20 to reverse upside down the mail pieces P having detection objects, which have not been detected by the first reading section. If a detection object is detected by the first reading section 18, the reversing operation is not performed.
  • the second reading section 20 has fourth to sixth detecting portions 60a, 60b and 60c to detect objects of detection on the mail pieces P transferred from the reversing section 58.
  • the mail pieces P passed through the second reading section 20 is stamped in the stamping section 24 and thereafter transferred to the sorting and storing section 26.
  • the sorting and storing section 26 has a plurality of sorting gates 62 driven in accordance with information read by the first or second reading section 18 or 20, and a plurality of partitions 64.
  • the mail pieces P, which have been subjected to the detection and stamping processes, are sorted, for example, depending on destinations, or whether normal mail or express mail.
  • the sorted mail pieces are stored in the corresponding partitions 64.
  • the stacker feeder 16 includes the first pickup unit 50 and a supply section 70 for supplying to the first pickup unit 50 the mail pieces P transferred through the transfer path 44.
  • the supply section 70 comprises a supply base 71, supply belts 73 provided in slits 72 in the supply base 71 so as to be movable toward a pickup belt 78 (to be described later), a side plate 74 stood on the supply base 71, and supply pins 76 arranged at regular intervals in slits 75 formed in the side plate 74 so as to be movable toward the pickup belt 78.
  • the mail pieces P, transferred by the supply belts 73 and the supply pins 76 of the supply section 70 are supplied to a pickup section 77 in a state where the rear (lower) ends are aligned in front of the first pickup unit 50.
  • the first pickup unit 50 comprises a pickup belt 78 extended perpendicular to the direction in which the mail pieces P is transferred by the supply section 70.
  • the pickup belt 78 has a number of sets of holes 79. One hole set has, for example, four holes, and the sets of holes are arranged at regular intervals in the pickup belt 78.
  • the pickup belt 78 is extended over a driving roller 80 and four pinch rollers 81a, 81b, 81c and 81d.
  • the driving roller 80 is rotated by a driving mechanism (not shown)
  • the pickup belt 78 is moved in a direction indicated by the arrow in FIG. 3, so that the mail pieces P can be transferred in a predetermined transfer direction, i.e., toward the transfer path 48.
  • the pickup belt 78 can be moved at a variable rate by the aforementioned driving mechanism.
  • a main drawing section 82 drawn by a drawing mechanism (not shown) so as to face the inner surface of the pickup belt 78.
  • An auxiliary drawing section 83 drawn by the drawing mechanism is arranged in an upstream side of the pickup belt 78.
  • the auxiliary drawing section 83 is to prevent the pickup belt 78 from simultaneously picking up two or more mail pieces P.
  • the auxiliary drawing section 83 has drawing holes 83a, and a pressure detecting lever 83b, an end of which is present in the pickup section 77 of the supply section 70.
  • the pressure detecting lever 83b When the mail pieces P are stored in the pickup section 77, the pressure detecting lever 83b is moved by the pressure of the mail pieces, so that the rear end of the pressure detecting lever 83b turns on a pressure detector 84 of transmission type, which is arranged behind the auxiliary drawing section 83.
  • the rear end of the pressure detecting lever 83b shades light transmitted from a light emitting element (not shown) to a light receiving element (not shown), thereby turning on the pressure detector 84.
  • a belt hole detector 85 of transmission type is provided between the pinch rollers 81c and 81d.
  • the belt hole detector 85 detects passage of a hole 79, thereby detecting the transfer position of the pickup belt 78.
  • the belt hole detector 85 is turned on.
  • a side plate 86 is provided in a front side of the main drawing section 82. Above the side plate 86, there are provided a front end detector 87 of transmission type for detecting the front end (upper end) of a mail piece P picked up by the pickup belt 78 and a rear end detector 88 of transmission type for detecting the rear end (lower end) of the mail piece P picked up by the pickup belt 78.
  • the front end detector 87 is designed so as to be turned on when light emitted from the a light emitting element (not shown) to a light receiving element (not shown) is shaded by the front end (upper end) of the mail piece P.
  • the rear end detector 88 is designed so as to be turned on when light emitted from a light emitting element (not shown) is guided to a light receiving element (not shown) due to the passage of the rear end (lower end) of the mail piece P.
  • the rear end detector 88 may be constituted by either one or a plurality of detector elements.
  • the mail piece P picked up by the pickup belt 78 is guided to the transfer path 48 after being transmitted through the front end detector 87 and the rear end detector 88.
  • the transfer path 48 is comprised of a transfer belt 91 extended over rollers 90a and 90b and a transfer belt 93 extended over a roller 92.
  • a structure of the main portion of the above mail pickup apparatus will be described with reference to the block diagram of FIG. 4.
  • a calculating circuit 100 calculates various timings in response to detection signals output from the pressure detector 84, the belt hole detector 85, the front end detector 87 and the rear end detector 88.
  • a mechanism controller 101 performs control in response to a calculation result output from the calculating circuit 100.
  • a driving mechanism 102 controlled by the mechanism controller 101, drives or moves the supply belts 73 and the supply pins 76.
  • a driving mechanism 103 controlled by the mechanism controller 101, drives the pickup belt 78 at various rates (to transfer or pick up mail pieces).
  • a drawing controller 104 controlled by a detection signal output from the belt hole detector 85, controls a drawing apparatus 105 connected to the main drawing section 82 and the auxiliary drawing section 83. Drawing operations in the main and auxiliary drawing sections 82 and 83 are performed by means of the drawing apparatus 105.
  • the rate function of the pickup belt 78 is u (t); the distance between a hole 79 in the pickup belt 78 for drawing a mail piece P and another hole 79 for drawing a subsequent mail piece P is p; the transfer rate of the transfer path 48 is v (which is a constant value, since the transfer path moves at a constant rate); the height of the front end detector 87 above the supply base 71 is x; the height of the position at which the rear end of the previous mail piece P is to be located, at the time when the pickup operation of a next mail piece P is started, is h; the height at which the transfer path 48 receives the mail piece P (the height of the roller 90b above the supply base 71) is y; and the length of the mail piece P is L.
  • the time at which the pickup operation is started is 0; the time elapsed before the front end of the mail piece P has passed through the front end detector 87 is T1; the time elapsed before the mail piece P has been transferred to the transfer section 48 is T2; and the time elapsed before the rear end of the mail P has passed through the portion at the height h is T3.
  • the pickup belt 78 moves at a constant rate during the time between 0 and T1
  • the moving rate function u (t) of the pickup belt 78 is variable during the time between T1 and T2 and the time between T2 and T3.
  • the values of y and x are determined in advance, depending on the apparatus, and the time (T1), when the front end of the mail piece P is detected by the front end detector 87, varies in accordance with the length L of each of the mail pieces P. Therefore, the time (T2) when the transfer path 48 receives the mail piece P is kept constant and the rate function u (t) of the pickup belt 78 is controlled so that the front end of the mail piece P reaches the transfer path 48 at the time T2.
  • T3 ((L+h)-y)/v+T2
  • the pickup belt 78 can be driven freely in this period. As described above, since T3 is the timing when a next mail piece is picked up, it is necessary to move the hole 79 in the pickup belt 78 to a predetermined position (at which the mail piece P is picked up) during the period of time between T2 and T3.
  • the distance in which the pickup belt 78 moves in the period between the time 0 and T2 is obtained as "y-L", from the equations A and B. It is only necessary that the pickup belt 78 is moved by the distance corresponding to the difference between the above distance "y-L” and the distance p between the holes in the pickup belt 78 (p-(y-L)). Therefore, the rate function u (t) of the pickup belt 78 can be obtained from the equation C.
  • the rear ends of the mail pieces are aligned with respect to the transfer direction of the transfer belt 78, whereas the positions of the front ends thereof vary depending on the lengths of the mail pieces P.
  • the mail pieces P, the rear ends of which are aligned are arranged on the supply base 70 and supplied to a portion near the pickup belt 78, i.e., to the pickup section 77, by means of the supply pins 76 and the supply belts 73 (Step 1).
  • the pressure detecting lever 83b When the mail pieces P are supplied in the pickup section 77, the pressure detecting lever 83b is pressed, with the result that the pressure detector 84 is turned on. In other words, the pressure detector 84 detects that the mail pieces P are supplied to a pickup surface of the pickup belt 78 (Step 2).
  • Step 3 the driving mechanism 103 is driven by the mechanism controller 101, thereby moving the pickup belt 78 at a constant rate.
  • the belt hole detector 85 detects that the hole 79 is placed at a predetermined position of the mail piece P (Step 4). Thereafter, the drawing apparatus 105 is operated by the drawing controller 104 so as to operate the main drawing section 82 and the auxiliary drawing section 83 at a negative pressure (a pressure lower than one atmosphere pressure) (Step 5).
  • Step 6 a first mail piece P is adhered to the pickup belt 78 by the main drawing section 82 and picked up (Step 6).
  • the pickup time in Step 6 is defined as "0", the pickup start time.
  • a second mail piece P is adhered to the auxiliary drawing section 83, so that two or more mail pieces P may not be picked up simultaneously.
  • the front end of the first mail piece P, picked up in Step 6, is detected by the front end detector 87 (Step 7).
  • Step 8 the pattern of driving the pickup belt 78 is calculated (Step 8).
  • the value of T2 is fixed as described above, and the rate u (t) of the pickup belt 78 is calculated so that the mail piece P is transferred to the transfer path 48 at the time T2.
  • the moving rate of the pickup belt 78 i.e., the transfer rate of the mail piece P
  • Step 9 the moving rate of the pickup belt 78
  • Step 10 the first mail piece P is transferred to the transfer path 48 at the time T2 (the front end of the first mail piece P reaches the transfer path 48) (Step 10).
  • Step 11 Since the time T1, at which the front end of the mail piece P passes through the front end detector 87, is obtained on the basis of the timing of detecting the front end of the mail piece P in Step 7, an estimation value of the rear end of the mail piece P is calculated from the equation A, thereby obtaining the length L of the mail piece P (Step 11).
  • the rate u (t) of the pickup belt 78 is obtained as a rate pattern of driving the pickup belt 78 by substituting, for L in the equation C, the length L of the mail piece P obtained from the equation A by the calculating circuit 100 in Step 11 (Step 12).
  • the pickup belt 78 controls the rate u (t) so that the hole 79 can be moved to the mail piece pickup position, before the second mail piece P is picked up.
  • the drive of the pickup belt 78 is controlled at the rate u (t) obtained in Step 12 (Step 13).
  • the second mail piece P can be picked up, when the rear end of the first mail piece P reaches the height h (at the timing of T3).
  • the belt hole detector 85 detects whether the hole 79 is located at the pickup position at the time T3 (Step 14). At this time, if the detection timing of the belt hole detector 85 does not coincide with T3, this time is stored as T4.
  • Step 15 it is detected whether the rear end of the first mail piece P has passed through the rear end detector 88 (Step 15). In other words, it is detected whether the rear end of the first mail piece P has passed through the position at the height h at the time T3. At this time, if the detection timing of the rear end detector 88 does not coincide with T3, this time is stored as T5. The rear end detector 88 is located at the position of the height h.
  • the rear end detector 88 is provided to perform refined adjustment of the deviation of the actual position of the mail piece P from the position obtained by the calculations of the equations A to C, and to suppress variation of the gaps between the mail pieces, in consideration of extension or a slip of the mail piece P by the pickup belt 78.
  • the second mail piece P is adhered to the pickup belt 78 by the main drawing section 82 and picked up (Step 17).
  • the time T3 when the rear end of the first mail piece P passes through the height h is set as "0"
  • the pickup start time is set as "0"
  • the pickup start time is adhered to the auxiliary drawing section 83, so that two or more mail pieces P may not be picked up simultaneously.
  • the front end of the second mail piece P, picked up in Step 17, is detected by the front end detector 87 (Step 18).
  • the pattern of driving the pickup belt 78 is calculated (Step 19).
  • the value of T2 is fixed as described above, and the rate u (t) of the pickup belt 78 is calculated so that the mail piece P is transferred to the transfer path 48 at the time T2, based on the following equation B', taking account of the rear end correction value obtained by Step 16.
  • T1 T2 u(t)dt y - x + (L'+L'')
  • the rate of transferring the mail piece P by the pickup belt 78 is controlled on the basis of the calculation result of Step 19 (Step 20).
  • the second mail piece P is transferred to the transfer section 48 at the time T2 (the front end of the second mail piece P reaches the transfer path 48) (Step 21).
  • the time T1 when the front end of the mail piece P passes through the front end detector 87 is detected.
  • An estimate value of the rear end of the mail piece P is calculated from the equation A, thereby obtaining the length L of the second mail piece P (Step 22).
  • the rate u (t) of the pickup belt 78 is obtained as a rate pattern of driving the pickup belt 78 by substituting, for L in the equation C, the length L of the mail piece P obtained from the equation A in Step 22 (Step 23).
  • the pickup belt 78 controls the rate u (t) so that the hole 79 can be moved to the mail piece pickup position, before the third mail piece P is picked up.
  • the driving of the pickup belt 78 is controlled at the rate u (t) obtained in Step 23 (Step 24).
  • the pickup belt 78 is controlled such that the mail pieces P are located at the same positions at the times T1, T2 and T3, it is possible to provide a paper sheet pickup apparatus in which the rear ends of paper sheets are aligned and the paper sheets are picked up one by one at regular intervals.
  • the apparatus therefore can be smaller and occupy less space as compared to the conventional apparatus. With the apparatus, the load applied to the driving mechanism is reduced, and the lifetime of the machine is increased. Further, paper sheets can be picked up with less variation and the machine performance can be stable.
  • the mail pickup apparatus of the present invention is applied to the first pickup apparatus in the stacker feeder 16. However, it can also be applied to the second pickup apparatus in the same manner.

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  • Sheets, Magazines, And Separation Thereof (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sorting Of Articles (AREA)

Claims (9)

  1. Vorrichtung zum Aufnehmen von Papierblättern, mit
    einer Zuführungseinrichtung (73, 76) zum Zuführen von ersten und von zweiten Papierblättern (P), deren rückseitige Enden miteinander ausgerichtet sind,
    einer Aufnahmeeinrichtung (78) zum Aufnehmen der von der Zuführungseinrichtung (73, 76) zugeführten Papierblätter (P) jeweils eines nach dem anderen mit einer Aufnahmerate, die variabel ist,
    einer Erfassungseinrichtung (87) zum Erfassen der, in der Aufnahmerichtung gesehen, vorderen Enden der Papierblätter (P), die durch die Aufnahmeeinrichtung (78) aufgenommen worden sind,
    einer Schätzeinrichtung (100) zum Schätzen der Länge (L) des ersten Papierblattes (P) auf der Grundlage eines Erfassungsergebnisses, das mit dem ersten Papierblatt (P) zusammen hängt, das durch die Erfassungseinrichtung (87) erfaßt worden ist,
    einer Übertragungseinrichtung (48) zum Aufnehmen und zum Übertragen des ersten Papierblattes (P), das von der Aufnahmeeinrichtung (78) aufgenommen worden ist, und
    einer ersten Steuereinrichtung (100, 101, 103) zum Ändern der Aufnahmerate der Aufnahmeeinrichtung (78) in einer solchen Weise, daß der Spalt zwischen dem hinteren Ende des ersten Papierblattes (P) und dem vorderen Ende des zweiten Papierblattes (P) gleich groß wird wie der Spalt zwischen einem hinteren Ende eines Papierblattes, das vor dem ersten Papierblatt (P) transportiert wurde, und dem vorderen Ende des ersten Papierblattes (P), wobei diese Änderung erfolgt, wenn das vordere Ende des zweiten Papierblattes (P), das durch die Aufnahmeeinrichtung (78) aufgenommen worden ist, durch die Erfassungseinrichtung (87) erfaßt wird,
       gekennzeichnet durch
    eine zweite Steuereinrichtung (100, 101, 103) zum Ändern der Aufnahmerate der Aufnahmeeinrichtung (78) und zum Bewegen einer Aufnahmeposition (79), die auf eine vorbestimmte Position voreingestellt ist, zu der vorbestimmten Position auf der Grundlage des Ergebnisses der Abschätzung der Länge (L) des ersten Papierblattes (P), das durch die Schätzeinrichtung (100) gebildet worden ist, wenn das erste Papierblatt (P) von der Übertragungseinrichtung (48) aufgenommen wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Aufnahmeeinrichtung (78) durch ein endloses Transportband (78) gebildet ist, und daß die Papierblätter (P) jeweils eines nach dem anderen in einer vorbestimmten Richtung auf Grund einer Drehung des Transportbandes (78) aufgenommen werden.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Aufnahmeeinrichtung (78) durch ein endloses Transportband (78) und durch Ziehabschnitte (82, 83) zum Ziehen der Papierblätter (P) gebildet ist, und daß die Papierblätter (P) jeweils eines nach dem anderen durch Ziehvorgänge der Ziehabschnitte (82, 83) an dem Transportband (78) zum Anhaften gebracht werden, und daß die Papierblätter (P), die an dem Transportband (78) anhaften, in einer vorbestimmten Richtung auf Grund einer Drehung des Transportbandes (78) aufgenommen werden.
  4. Vorrichtung zum Aufnehmen von Papierblättern, mit
    einer Zuführungseinrichtung (73, 76) zum Zuführen einer Mehrzahl von Papierblättern (P), deren hintere Enden miteinander ausgerichtet sind,
    einer Aufnahmeeinrichtung (78) zum Aufnehmen der Papierblätter (P), die von der Zuführungseinrichtung (73, 76) jeweils eines nach dem anderen mit einer Aufnahmerate, die variabel ist, zugeführt werden,
    einer Erfassungseinrichtung (87) zum Erfassen der vorderen Enden bezüglich der Aufnahmerichtung der Papierblätter (P), die von der Aufnahmeeinrichtung (78) aufgenommen werden,
    einer Berechnungseinrichtung (100) zum Schätzen der lange (L) der jeweiligen Papierblätter (P) auf der Grundlage der Erfassungsergebnisse, die von der Erfassungseinrichtung (87) ermittelt worden sind, und zum Berechnen einer Erfassungszeit (T1) in der Erfassungseinrichtung,
    einer Übertragungseinrichtung (48) zum Aufnehmen und zum Übertragen der Papierblätter (P), die von der Aufnahmeeinrichtung (78) aufgenommen worden sind, und
    einer ersten Steuereinrichtung (100, 101, 103) zum Ändern der Aufnahmerate der Aufnahmeeinrichtung (78) in einer solchen Weise, daß die Übertragungseinrichtung (48) die Papierblätter (P) zu einer festgelegten Zeit (T2) mit Bezug zu der Erfassungszeit (T1) aufnimmt, die durch die Berechnungseinrichtung berechnet worden ist,
       gekennzeichnet durch
    eine zweite Steuereinrichtung (100, 101, 103) zum Ändern der Aufnahmeeinrichtung (78) in einer solchen Weise, daß eine Aufnahmeposition (79), die auf eine vorbestimmte Position voreingestellt ist, zu der vorbestimmten Position bewegt wird, und zwar vor einem Zeitpunkt (T3), zu dem das hintere Ende des Papierblattes (P), das von der Übertragungseinrichtung (48) übertragen worden ist, eine festgelegte Position (h) erreicht, auf der Grundlage des Ergebnisses der Berechnung der Länge (L) des Papierblattes (P), die durch die Berechnungseinrichtung (100) berechnet worden ist, um hierdurch den Vorgang des Aufnehmens eines weiteren Papierblattes (P) seitens der Aufnahmeeinrichtung (78) zu dem Zeitpunkt (T3) zu beginnen.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß weiterhin eine zum Erfassen des hinteren Endes vorgesehene Erfassungseinrichtung (88) vorhanden ist, die an der festgelegten Position (h) angeordnet ist und dazu ausgelegt ist, zu erfassen, ob das hintere Ende des Papierblattes (P) durch die festgelegte Position zu dem Zeitpunkt (T3) durchgelaufen ist.
  6. Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß weiterhin eine zur Erfassung der Aufnahmeposition vorgesehene Erfassungseinrichtung (85) vorhanden ist, die an der vorbestimmten Position angeordnet ist und dazu ausgelegt ist, zu erfassen, ob die Aufnahmeposition (79) der Aufnahmeeinrichtung (78) an der vorbestimmten Position angeordnet ist.
  7. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß sie weiterhin aufweist
    eine zum Erfassen des hinteren Endes vorgesehene Erfassungseinrichtung (88), die an der festgelegten Position (h) angeordnet ist und dazu ausgelegt ist, zu erfassen, ob das hintere Ende des Papierblattes (P) die festgelegte Position zu dem Zeitpunkt (T3) durchlaufen hat,
    eine zur Erfassung der Aufnahmeposition vorgesehene Erfassungseinrichtung (85), die an der vorbestimmten Position angeordnet ist und dazu ausgelegt ist, zu erfassen, ob die Aufnahmeposition (79) der Aufnahmeeinrichtung (78) an der vorbestimmten Position angeordnet ist, und
    eine Korrektureinrichtung (100, 101, 103) zum Korrigieren der Steuerung der Aufnahmeeinrichtung seitens der ersten Steuereinrichtung (100, 101, 103) auf der Grundlage der Erfassungsergebnisse, die von der zur Erfassung des hinteren Endes vorgesehenen Erfassungseinrichtung (88) und der zur Erfassung der Aufnahmeposition vorgesehenen Erfassungseinrichtung (85) erhalten worden sind.
  8. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Aufnahmeeinrichtung (78) durch ein endloses Transportband (78) gebildet ist, und daß die Papierblätter (P) jeweils eines nach dem anderen in der vorbestimmten Richtung auf Grund einer Drehung des Transportbandes (78) aufgenommen werden.
  9. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Aufnahmeeinrichtung (78) durch ein endloses Transportband (78) und durch Ziehabschnitte (82, 83) zum Ziehen der Papierblätter (P) gebildet ist, daß die Papierblätter (P) jeweils eines nach dem anderen an dem Transportband (78) auf Grund von Ziehvorgängen seitens der Ziehabschnitte (82, 83) zum Anhaften gebracht werden, und daß die Papierblätter (P), die an dem Transportband (78) anhaften, in einer vorbestimmten Richtung auf Grund einer Drehung des Transportbandes (78) aufgenommen werden.
EP19950119488 1994-12-20 1995-12-11 Vorrichtung zum Aufnehmen von Papierbogen Expired - Lifetime EP0718232B1 (de)

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JP317075/94 1994-12-20
JP31707594 1994-12-20

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EP0718232A1 EP0718232A1 (de) 1996-06-26
EP0718232B1 true EP0718232B1 (de) 1998-08-12

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Publication number Priority date Publication date Assignee Title
US6126160A (en) * 1999-04-12 2000-10-03 Eastman Kodak Company Sheet feeding control for image reading device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1049948A (en) * 1976-03-27 1979-03-06 Werner Frank Device for successive release of mail from a stack
US4318540A (en) * 1978-09-14 1982-03-09 Burroughs Corporation Constant spacing document feeder
US4451027A (en) * 1980-01-09 1984-05-29 Burroughs Corp. Constant spacing document feeder
US4331328A (en) * 1980-06-30 1982-05-25 Burroughs Corporation Controller for a servo driven document feeder
IT1136812B (it) * 1981-03-13 1986-09-03 Elsag Dispositivo per singolarizzare e distanziare con intervalli reciproci costanti oggetti piatti,particolarmente corrispondenza postale e simili
US4541624A (en) * 1982-03-24 1985-09-17 Nippon Electric Co., Ltd. Flat article feeding apparatus
US5121915A (en) * 1989-11-20 1992-06-16 International Business Machines Corporation Document processor having improved throughput capabilities
US5056771A (en) * 1989-08-25 1991-10-15 Lexmark International, Inc. Apparatus for controlling interpage gaps in printers and method of interpage gap control
WO1992016444A1 (en) * 1991-03-21 1992-10-01 Bell & Howell Phillipsburg Company Constant gap document feeder and method of operation thereof

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