WO1993002956A1 - Rouleau a contrainte laterale - Google Patents

Rouleau a contrainte laterale Download PDF

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Publication number
WO1993002956A1
WO1993002956A1 PCT/US1992/006328 US9206328W WO9302956A1 WO 1993002956 A1 WO1993002956 A1 WO 1993002956A1 US 9206328 W US9206328 W US 9206328W WO 9302956 A1 WO9302956 A1 WO 9302956A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
discs
areas
roller assembly
flange
Prior art date
Application number
PCT/US1992/006328
Other languages
English (en)
Inventor
Kodak Company Eastman
Thomas C. Jessop
Robert B. Pearson
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of WO1993002956A1 publication Critical patent/WO1993002956A1/fr

Links

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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis

Definitions

  • This invention relates generally to the field of guide rollers and particularly to rollers that are used in a web handling system.
  • Description of the Prior Art Gimballed, castered, laterally free double flanged idler and drive rollers or wobbly rollers are currently being used in some photographic printers.
  • the rollers move a filmstrip or a filmstrip and paper carrier combination to various photographic printer stations.
  • the various 24 and 36 exposure filmstrips are joined end to end to form a continuous constant width filmstrip roll.
  • the various frames of a filmstrip that a customer wants reprinted are attached to a paper carrier.
  • the paper carrier forms a roll containing many frames, that are randomly attached to one side of the paper carrier.
  • the width of the filmstrip paper carrier combination varies.
  • the paper carrier filmstrip combination is able to be rapidly moved through the printer.
  • rollers may be used to guide a first order filmstrip by contacting either edge of the filmstrip.
  • the guide roller may only contact the paper carrier portion of the roll, since the filmstrip segments are too flimsy.
  • URS Universal Reorder System
  • Kodak Reprint System Two types of paper carrier systems currently in use are the Universal Reorder System (URS) and the Kodak Reprint System.
  • the paper tape of the URS is wider than the paper tape of the Kodak Reprint system.
  • the lateral position of the filmstrip and the filmstrip paper carrier combination needs to be accurately controlled to permit the bar code on the filmstrip and/or the code on the paper tape to be read.
  • Devices contained within the printer use the information contained in the above codes to set or adjust various photographic printer parameters to produce better quality prints.
  • precise lateral placement of the filmstrip and filmstrip paper tape combination is necessary for proper scanning.
  • the lateral position of the filmstrip and the filmstrip paper carrier combination needs to be accurately controlled as the filmstrip and the filmstrip paper carrier combination changes its direction of travel.
  • precise lateral placement of the filmstrip and filmstrip paper tape combination is necessary for proper transport and printing operations.
  • the movement of the wobbly roller back and forth along its shaft prevents the wobbly roller from accurately controlling the lateral position of the filmstrip and filmstrip paper carrier combination.
  • one of the problems in using wobbly rollers is that a wobbly roller does not accurately position a filmstrip.
  • a wobbly roller constrains a filmstrip along two of the filmstrip's edges, i.e., the two edges of the filmstrip that have sprocket perforations.
  • wobbly rollers tends to overly constrain the filmstrip.
  • the filmstrip and/or filmstrip paper carrier combination (web) has to be manually threaded on the wobbly roller.
  • the roller's flanges it was necessary to adjust the roller's flanges to accommodate the change in width from first order filmstrips to reorder filmstrips and paper carrier or make other roller adjustments. If the threading was done carelessly and the filmstrip and/or filmstrip paper carrier combination was not placed on the wobbly roller correctly, or the adjustments were made improperly, the photographic printer would not operate.
  • the present invention overcomes the disadvantages of the prior art, by providing a roller for web handling systems: that corrects inaccurate operator positioning of the filmstrip and/or filmstrip/paper carrier combination on the roller; that does not require the operator to adjust the flanges of the roller or make other roller adjustments; that allows the filmstrip and/or a filmstrip/paper carrier combination to run against one flange of the roller; that limits the force between the flange and the paper carrier preventing paper carrier damage while retaining rapid movement of the paper carrier to the flange; that automatically compensates for the entrance angle of the filmstrip and/or filmstrip/paper carrier combination when they are incorrect; and that accurately laterally positions the filmstrip and/or filmstrip/paper carrier combination.
  • a roller assembly having a flange and a shaft is provided to move a web
  • the roller assembly comprises: a plurality of compliant annular discs concentrically disposed on the shaft and separated by respective spaces; respective annular rigid spacers concentrically disposed on the shaft in the space between the discs, the spacers each having a diameter less than that of the discs and an inner edge portion adjacent the shaft that is further from the flange than an outer edge portion remote from the shaft; and a retainer for retaining the discs and the spacers about the shaft, and for causing the portion of the discs that are in contact with the spacers to deform the discs in a similar manner, whereby a web wound longitudinally at least partially about the discs will be urged laterally toward the flange.
  • Fig. 1 illustrates a roller that may be used for processing first order filmstrips
  • Fig. 2 illustrates disc 14 of Fig. 1 in greater detail
  • Fig. 3 illustrates disc 15 of Fig. 1 in greater detail
  • Fig. 4 illustrates a roller that may be used for processing first order filmstrips and reorder filmstrips that have a filmstrip and paper carrier combination
  • Fig. 5 is an alternate embodiment of this invention that illustrates a roller that may be used for processing first order filmstrips
  • Fig. 6 is an alternate embodiment of this invention that illustrates a roller that may be used for processing first order filmstrips and reorder filmstrips that have a filmstrip and paper carrier combination;
  • the reference character 11 represents a roller that has a shaft 12. Roller 11 may be used as an idler or drive roller for filmstrip 13. A plurality of compliant discs 14 are placed on shaft 12. A spacer 15 is placed between each disc and two spacers 15 are placed between flange or lateral stop 16 of roller 11 and disc 14. A spacer 15 is placed between retaining ring 17 and disc 14. Ring 17 insures that when roller 11 rotates, disc 14 and spacers 15 will remain on shaft 12.
  • discs 14 When discs 14 are originally placed on shaft 12, discs 14 are flat. Discs 14 are set at an initial angle A (angle A is between 3° and 30°) , so that the force created by filmstrip 13 as it moves across roller 11 tends to collapse disc 14 in the axial direction and position filmstrip 13 against flange 16. Thus, when discs 14 are pushed straight down, tips 40 of discs 14 move towards flange 16. Once filmstrip 13 hits flange 16, discs 14 move a small distance away from flange 16 so that a large force will not be exerted on filmstrip 13.
  • the force exerted by filmstrip 13 against flange 16 may be regulated by changing the preset angle, i.e., angle A, the thickness of discs 14, the spacing (pitch) of discs 14, the durometer (hardness) of discs 14, the edge profile angle of discs 14, the unsupported height of discs 14 (the height of spacers 15) and type of material comprising discs 14.
  • Discs 14 will be described in greater detail in the description of Fig. 2.
  • Roller 11 will allow limited radial compliance so that it will not be necessary to gimbal or caster its axes in applications where there is uneven force distribution on the surface of roller 11.
  • Fig. 2 illustrates disc 14 of Fig. 1 in greater detail.
  • Disc 14 is conically shaped and has an orifice 18 in its center. When disc 14 is placed on shaft 12 of Fig. 1, disc 14 will be symmetrical about shaft 12.
  • Disc 14 may be constructed from any compliant material, i.e.: urethane, Sanoprene, Texin, etc.
  • edge 19 of disc 14 When disc 14 is assembled on shaft 12 edge 19 of disc 14 will have an angle between 3° and 30° with respect to the axis of roller 11.
  • the durometer of disc 14 is between 30 and 80 shore A.
  • Fig. 3 illustrates spacer 15 of Fig. 1 in greater detail. Spacer 15 is circularly shaped and has an orifice 20 in its center. When spacer 15 is placed on shaft 12 of Fig.
  • spacer 15 will be symmetrical about shaft 12.
  • Spacer 15 may be constructed from any rigid material, i.e., metal, plastic, etc.
  • Face 21 of spacer 15 is shaped in a manner that the angle between edge 22 and edge 23 of spacer 15 will be between 7° and 40°.
  • Fig. 4 depicts an alternate embodiment of roller 11 of Fig. 1.
  • Roller 25 may be an idler or drive roller for a filmstrip or an idler or drive roller for a filmstrip when it is attached to a paper carrier.
  • the embodiment illustrated in Fig. 4 may be used to handle 35mm filmstrips and 35mm filmstrips that are attached to a Kodak Reprint System paper carrier.
  • Roller 25 has a shaft 26 and flanges 28 and 29.
  • a plurality of compliant discs 14 are placed on the right side of shaft 26.
  • a spacer 15 is placed between each disc 14 and spring spacer 30 is placed between disc 14 and compression spring 32.
  • a plurality of compliant discs 14 are placed on the left side of shaft 26.
  • Spacer 15 is placed between each disc 14 and spring spacer 31 is placed between disc 14 and compression spring 32.
  • Discs 14 and spacers 15 on the left side of spring 32 have a smaller diameter than discs 14 and spacers 15 on the right side of spring 32.
  • Retainer 33 is used to hold discs 14, spacers 15 and flange 28 about shaft 26.
  • the filmstrip will be gently pushed against flange 28 at one height and the paper carrier will be gently pushed against flange 29 at a different height.
  • flange 28 is relieved at level Y so as not to overly constrain the filmstrip and paper carrier combination.
  • the URS paper carrier is wider than the Kodak Reprint System paper carrier. Therefore, additional discs 14 and spacers 15 may be placed on shaft 26 between spacer 30 and flange 29 so that roller 25 may be able to handle the URS paper carrier.
  • Fig. 5 is an alternate embodiment of the invention shown in Fig. 1.
  • the invention shown in Fig. 5 has the same geometric shape as the invention shown in Fig. 1.
  • discs 14 and spacers 15 of Fig. 1 were molded to rigid core 50 to form areas 44 and 45 of roller 41 of Fig. 5.
  • Areas 44 and 45 may be formed from a casting of any compliant material, i.e., urethane, Sanoprene, Texin, etc..
  • Flange 46 is connected to core 50 and core 50 is connected to shaft 42. Ring 47 insures that when roller 41 rotates, areas 44 and 45 will remain on shaft 42.
  • Areas 44 are set at an initial angle A
  • angle A is between 7° and 40°
  • the force exerted by filmstrip 43 against flange 46 may be regulated by changing the preset angle, i.e., angle A, the thickness of areas 44, the spacing (pitch) of areas 44, the durometer (hardness) of areas 44, the edge profile angle of areas 44, the unsupported height of areas 44 (the height of areas 45) and type of material comprising areas 44.
  • Areas 44 and 45 are conically shaped and symmetric about core 50.
  • the angle between edge 52 and edge 53 of areas 45 will be between 7° and 40° and the angle between edge 52 and 53 in the region of areas 44 that are in contact with areas 45 will be between 7° and 40 r '.
  • tip 51 of areas 44 will have an angle between 3° and 30° with respect to the axis of roller 41.
  • the durometer of areas 44 and 45 is between 30 and 80 shore A.
  • Roller 41 will allow limited radial compliance so that it will not be necessary to gimbal or castor its axes in applications where there is uneven force distribution on the surface of roller 41.
  • Fig. 6 is an alternate embodiment of the invention shown in Fig. 4.
  • Roller 54 may be an idler or drive roller for a filmstrip or an idler or drive roller for a filmstrip when it is attached to a paper carrier.
  • the embodiment illustrated in Fig. 6 may be used to handle 35mm filmstrips and 35mm filmstrips that are attached to a Kodak Reprint System paper carrier.
  • the invention shown in Fig. 6 has the same geometric shape as the invention shown in Fig. 4. However, discs 14 and spacers 15 of Fig. 4 were molded to rigid core 55 to form areas 64 and 65 of roller 54 of Fig. 6. Space 72 separates areas 64 and 65. Area 64, area 65 and space 72 may be formed from a casting of any compliant material, i.e., urethane, Sanoprene, Texin, etc.. Flanges 58 and 59 are connected to core 55 and core 50 is connected to shaft 56.
  • compliant material i.e., urethane, Sanoprene, Texin, etc.
  • the URS paper carrier is wider than the Kodak Reprint System paper carrier. Therefore, additional areas 64 and 65 will be added to core 55 between spacer 70 and flange 59 so that roller 54 may be able to handle the URS paper carrier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

Ensemble rouleau ayant un flasque-bride (16) et un axe (12), utilisés dans un système de manipulation de bande. L'ensemble rouleau comprend une pluralité de disques annulaires déformables (14) disposés concentriquement sur l'axe et séparés par des espaces respectifs (15); des éléments d'espacement rigides annulaires respectifs disposés concentriquement sur l'axe dans l'espace défini entre les disques, les éléments d'espacement ayant chacun un diamètre inférieur à celui des disques et une portion de bord intérieur adjacente à l'axe qui est plus éloignée du flasque-bride qu'une portion de bord extérieur distante de l'axe; et un élément de retenue (17) permettant de retenir les disques et les éléments d'espacement autour de l'axe et provoquant la déformation de la portion des disques qui sont en contact avec les éléments d'espacement, d'une manière similaire, de sorte qu'une bande (13) enroulée longitudinalement au moins partiellement autour des disques est sollicitée latéralement vers le flasque-bride.
PCT/US1992/006328 1991-08-09 1992-08-03 Rouleau a contrainte laterale WO1993002956A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74298491A 1991-08-09 1991-08-09
US742,984910809 1991-08-09

Publications (1)

Publication Number Publication Date
WO1993002956A1 true WO1993002956A1 (fr) 1993-02-18

Family

ID=24987050

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/006328 WO1993002956A1 (fr) 1991-08-09 1992-08-03 Rouleau a contrainte laterale

Country Status (1)

Country Link
WO (1) WO1993002956A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5580043A (en) * 1995-10-23 1996-12-03 Pitney Bowes Inc. Compensating pressure roller
US5626337A (en) * 1994-05-10 1997-05-06 Fuji Xerox Co., Ltd. Belt feeding device
EP0866009A1 (fr) * 1997-03-17 1998-09-23 Xerox Corporation Dispositif d'alignement des feuilles comprenant un rouleau d'alignement pour réduire la force d'alignement
EP1386676A2 (fr) * 2002-08-01 2004-02-04 Böhler Miller Messer und Sägen GmbH Appareil pour guider des bandes en mouvement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1309518A (fr) * 1961-11-20 1962-11-16 Du Pont Dispositif pour aplanir une nappe animée d'un mouvement continu
US3929327A (en) * 1974-04-01 1975-12-30 Addressograph Multigraph Document transport and registration apparatus
EP0196356A1 (fr) * 1985-03-08 1986-10-08 Anton Lückenotto Rouleau élargisseur pour matière en bande
CA1221619A (fr) * 1984-10-31 1987-05-12 Ronald J. Paquin Rouleau separateur de feuillards venus du tranchage longitudinal de la tole
EP0225504A1 (fr) * 1985-11-18 1987-06-16 Yoshida Kogyo K.K. Dispositif pour guider une bande

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1309518A (fr) * 1961-11-20 1962-11-16 Du Pont Dispositif pour aplanir une nappe animée d'un mouvement continu
US3929327A (en) * 1974-04-01 1975-12-30 Addressograph Multigraph Document transport and registration apparatus
CA1221619A (fr) * 1984-10-31 1987-05-12 Ronald J. Paquin Rouleau separateur de feuillards venus du tranchage longitudinal de la tole
EP0196356A1 (fr) * 1985-03-08 1986-10-08 Anton Lückenotto Rouleau élargisseur pour matière en bande
EP0225504A1 (fr) * 1985-11-18 1987-06-16 Yoshida Kogyo K.K. Dispositif pour guider une bande

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626337A (en) * 1994-05-10 1997-05-06 Fuji Xerox Co., Ltd. Belt feeding device
US5580043A (en) * 1995-10-23 1996-12-03 Pitney Bowes Inc. Compensating pressure roller
EP0866009A1 (fr) * 1997-03-17 1998-09-23 Xerox Corporation Dispositif d'alignement des feuilles comprenant un rouleau d'alignement pour réduire la force d'alignement
US5967511A (en) * 1997-03-17 1999-10-19 Xerox Corporation Sheet registration assembly including a force reducing deskew roll
EP1386676A2 (fr) * 2002-08-01 2004-02-04 Böhler Miller Messer und Sägen GmbH Appareil pour guider des bandes en mouvement
EP1386676A3 (fr) * 2002-08-01 2004-11-03 Böhler Miller Messer und Sägen GmbH Appareil pour guider des bandes en mouvement

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