EP1655253A1 - Bogen bearbeitungsgerät mit Lage erfassender Vorrichtung - Google Patents

Bogen bearbeitungsgerät mit Lage erfassender Vorrichtung Download PDF

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Publication number
EP1655253A1
EP1655253A1 EP05292250A EP05292250A EP1655253A1 EP 1655253 A1 EP1655253 A1 EP 1655253A1 EP 05292250 A EP05292250 A EP 05292250A EP 05292250 A EP05292250 A EP 05292250A EP 1655253 A1 EP1655253 A1 EP 1655253A1
Authority
EP
European Patent Office
Prior art keywords
probe
sheet
state
transition
sensor
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
EP05292250A
Other languages
English (en)
French (fr)
Other versions
EP1655253B1 (de
Inventor
Jean-Jacques Arroyo
Frédéric Marcq
Henric Svensson
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.)
Sagemcom Broadband SAS
Original Assignee
Sagem Communications SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sagem Communications SAS filed Critical Sagem Communications SAS
Publication of EP1655253A1 publication Critical patent/EP1655253A1/de
Application granted granted Critical
Publication of EP1655253B1 publication Critical patent/EP1655253B1/de
Not-in-force legal-status Critical Current
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
    • 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
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • 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
    • 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
    • B65H2513/50—Timing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/60—Details of intermediate means between the sensing means and the element to be sensed
    • B65H2553/61—Mechanical means, e.g. contact arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge

Definitions

  • Sheet processing devices are known, for example of the scanner, printer or copier type, which comprise a leaf circulation path and a sheet detection member in the circulation path.
  • the detection member comprises a first sensor detecting the arrival of a leading edge of the sheet and causing a change of scroll speed of the sheet for processing.
  • a second sensor is thus used, located downstream of the first sensor sufficiently far from it so that when the leading edge of the sheet arrives opposite the second sensor, its speed is stabilized.
  • the second sensor is then able to provide a reliable timing signal for the start of sheet processing, such as the analysis or printing of the sheet.
  • the second sensor is also able to provide a reliable synchronization signal for the end of sheet processing by detecting the trailing edge of the sheet.
  • the invention relates to a sheet processing device comprising a simplified device for detecting the position of the sheets.
  • a sheet treatment device comprising a leaf circulation path and a sheet detection device in the circulation path, characterized in that the detection device comprises a probe which is pointed towards a rest position by a return member and being movable between the rest position in which it extends through the circulation path and a retracted position to which it is pushed by a leading edge of a sheet passing through the circulation path, and a two-state sensor which cooperates with the probe to be in a first state when the probe is in the rest position or in the retracted position and in a second state when the probe is in an intermediate position between the rest position and the retracted position.
  • these transitions are used to control the speed change of the sheet and / or to serve for synchronizing the beginning and the end of the treatment of the sheet.
  • the processing device of the invention here a scanner, comprises a circulation path 1 of leaves F.
  • This is a sheet F engaged in the circulation path 1.
  • the sheet is moved in the circulation path 1 by unrepresented drive rollers.
  • the circulation path 1 passes a scanning member 2 and ends with an ejection channel 4.
  • the circulation path 1 defines in known manner a loop 5 which makes it possible to restart the sheet F towards the scanning member 2 to scan the other side of the sheet F.
  • a detection device 10 is mounted upstream of the scanning member 2.
  • the detection device comprises a probe generally designated 16.
  • the probe 16 comprises an arm 11 fixed in rotation on an axis 12 carried by bearings not shown.
  • the probe further comprises a pallet 13 also fixed in rotation on the axis 12.
  • the rigid arm 11 - pallet 13 is biased by a return spring 15 to a rest position in which the arm 11 extends across of the circulation path 1 upstream of the scanning member 2.
  • the probe 16 is associated with a sensor 14 with two states, here an optical sensor whose state is a function of the presence or absence of the pallet 13. 14.
  • the pallet thus forms an interaction element of the probe with the sensor.
  • the restoring force of the spring 15 is calculated so that the probe can pivot under the action of the sheet F flowing in the circulation path 1 between the rest position illustrated in FIG. 1 and a retracted position visible in FIG.
  • the pallet passes next to the optical sensor 14 which delivers a signal in a first state when the pallet 13 is offset relative to the optical sensor 14, and a second state when the pallet 13 is opposite the optical sensor 14.
  • the pallet 13 When the probe is in the rest position, the pallet 13 is offset relative to the optical sensor 14 so that the signal of the optical sensor 14 is in the first state of level n1.
  • the sheet F is shown, while it is moving at a high speed of movement, at the precise moment when its leading edge F1 approaches the probe 11.
  • the leading edge F1 pushes the probe 11 towards an intermediate position visible in FIG. 2, between the rest position and the retracted position, in which the pallet 13 is in front of the optical sensor 14.
  • the signal of the optical sensor 14 then transits to the second state of level n2. This first transition is noted t1 on the graph of FIG.
  • this transition is used to control the slowing of the sheet F.
  • the control module 50 of the scanner is configured to, in response to the detection of the transition t1, send to the drive rollers a slowing order to change the speed of the sheet F from a high scrolling speed to a slower analysis speed.
  • the signal from the optical sensor 14 transits back to the first state of level n1. This second transition is noted t2 on graph 4.
  • the second transition t2 is used as a synchronization signal for the beginning of the analysis of the sheet F by the scanning member 2.
  • the shape of the arm 11 cooperating with the leading edge F1 and the width of the pallet 13 are studied so as to leave a sufficient time between the first transition t1 and the second transition t2 so that at the moment when the second transition t2 intervenes, the speed of the sheet F is stabilized at the analysis speed.
  • the graph of FIG. 4 in thick mixed lines shows the evolution of the speed of the sheet F between the scrolling speed V1 and the analysis speed V2. It can be seen that the speed of the sheet F is stabilized at the analysis speed V2 well before the transition t2.
  • the control module 50 is configured to activate the scanning device after a corresponding count counted from the detection of the transition t2.
  • the sheet F keeps the probe in the retracted position.
  • the duration of the analysis is a function of the length of the sheet F. It can be seen from the graph of FIG. 4 that the state of the optical sensor 14 remains at level n1 during the analysis.
  • the probe 11 is then released and returned by the return member to the rest position, passing through the intermediate position.
  • This return movement gives rise to a third transition t3 of the signal of the optical sensor 14 when the probe 11 moves from the retracted position to the intermediate position, and, in rapid succession, to a fourth transition t4 of the signal of the optical sensor 14 when the probe 11 passes from the intermediate position to the rest position.
  • the transition t3 is used as a synchronization signal for the end of the analysis of the sheet F by the scanning member 2.
  • control module 50 is configured to deactivate the scanning member 2 after a time delay ⁇ T from the detection of the transition t3.
  • the scanning device is activated after a time ⁇ T counted from the transition t2
  • other types of synchronization such as for example generating a top storing the scanned data while the scanning device has already been activated.
  • the transition t3 can be used to generate a top stop storing the scanned data while the scanner remains active.
  • start and end times are the same, these times may be different, for example to take into account a shape of the arm 11 which induces different movement times of the probe as it cooperates with the leading edge or the trailing edge of the sheet.
  • these times may be variable depending on various parameters such as the speed of analysis.
  • the sensor and the element of interaction with the sensor carried by the probe are here an optical sensor and a pallet
  • any sensor that cooperates with an interaction element of the probe to be in a first state when the probe is in the rest position or in the retracted position and in a second state when the probe is in an intermediate position between the rest position and the retracted position.
  • a hall effect sensor interacting with a metal interaction element carried by the probe may be used.
  • a non-contact sensor will be used to avoid any friction causing wear that may in the long run generate shifts in the synchronizations.
  • the probe is pivoting, it will be more generally possible to implement the invention with a probe movable between a rest position and a retracted position, such as for example a sliding probe.
  • the probe can then be made in the form of a plate having a window, this window coming opposite the sensor in the intermediate position of the probe.
  • the interaction element is then the window.
  • the invention does not apply only to scanners, but to any type of sheet processing device, such as for example printers, copiers and applies not only to a front-and-back processing device as illustrated, but also to single-sided devices.

Landscapes

  • Controlling Sheets Or Webs (AREA)
EP05292250A 2004-11-04 2005-10-25 Bogen bearbeitungsgerät mit Lage erfassender Vorrichtung Not-in-force EP1655253B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0411751A FR2877330B1 (fr) 2004-11-04 2004-11-04 Dispositif de traitement de feuilles avec detection de position d'une feuille

Publications (2)

Publication Number Publication Date
EP1655253A1 true EP1655253A1 (de) 2006-05-10
EP1655253B1 EP1655253B1 (de) 2008-12-10

Family

ID=34950937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05292250A Not-in-force EP1655253B1 (de) 2004-11-04 2005-10-25 Bogen bearbeitungsgerät mit Lage erfassender Vorrichtung

Country Status (4)

Country Link
EP (1) EP1655253B1 (de)
DE (1) DE602005011554D1 (de)
ES (1) ES2318435T3 (de)
FR (1) FR2877330B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10265092A (ja) * 1997-03-26 1998-10-06 Seiko Epson Corp 紙端検出装置
US5971392A (en) * 1996-09-02 1999-10-26 Samsung Electronics Co., Ltd. Device for calculating sheet number in a sheet feeder and method for calculating the same
US6019362A (en) * 1997-02-13 2000-02-01 Brother Kogyo Kabushiki Kaisha Sheet transfer apparatus
US6152631A (en) * 1996-05-18 2000-11-28 Samsung Electronics Co., Ltd. Automatic paper sensing technique for an ink jet printer
US20040061283A1 (en) * 2002-09-18 2004-04-01 Samsung Electronics Co., Ltd. Paper detecting apparatus for duplex image forming machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6152631A (en) * 1996-05-18 2000-11-28 Samsung Electronics Co., Ltd. Automatic paper sensing technique for an ink jet printer
US5971392A (en) * 1996-09-02 1999-10-26 Samsung Electronics Co., Ltd. Device for calculating sheet number in a sheet feeder and method for calculating the same
US6019362A (en) * 1997-02-13 2000-02-01 Brother Kogyo Kabushiki Kaisha Sheet transfer apparatus
JPH10265092A (ja) * 1997-03-26 1998-10-06 Seiko Epson Corp 紙端検出装置
US20040061283A1 (en) * 2002-09-18 2004-04-01 Samsung Electronics Co., Ltd. Paper detecting apparatus for duplex image forming machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *

Also Published As

Publication number Publication date
ES2318435T3 (es) 2009-05-01
FR2877330B1 (fr) 2007-02-23
EP1655253B1 (de) 2008-12-10
FR2877330A1 (fr) 2006-05-05
DE602005011554D1 (de) 2009-01-22

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