US3715085A - Device for supplying continuous sheet of paper from a rolled package used in a copying apparatus - Google Patents

Device for supplying continuous sheet of paper from a rolled package used in a copying apparatus Download PDF

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Publication number
US3715085A
US3715085A US3715085DA US3715085A US 3715085 A US3715085 A US 3715085A US 3715085D A US3715085D A US 3715085DA US 3715085 A US3715085 A US 3715085A
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US
United States
Prior art keywords
shaft
flange
paper
lever
flanges
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
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English (en)
Inventor
A Kobayashi
T Koike
K Sato
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.)
Iwatsu Electric Co Ltd
Original Assignee
Iwatsu Electric Co Ltd
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 Iwatsu Electric Co Ltd filed Critical Iwatsu Electric Co Ltd
Application granted granted Critical
Publication of US3715085A publication Critical patent/US3715085A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6517—Apparatus for continuous web copy material of plain paper, e.g. supply rolls; Roll holders therefor
    • G03G15/6523—Cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
    • G03B27/587—Handling photosensitive webs
    • G03B27/588—Supply rolls; Cutting arrangements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6588—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material
    • G03G15/6594—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material characterised by the format or the thickness, e.g. endless forms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00443—Copy medium
    • G03G2215/00518—Recording medium, e.g. photosensitive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/889—Tool with either work holder or means to hold work supply
    • Y10T83/896—Rotatable wound package supply

Definitions

  • An electrophotographic apparatus comprises supporting means for rotatably supporting a roll of paper, a mechanical system for advancing the paper through the apparatus, a roller rotatably mounted along the advancing path of the paper for eliminating the tendency of the paper to reroll; a cutting device for cutting the paper into separate sheets, and sensing means for sensing the consumption of the roll of paper.
  • the supporting means comprises a rotatable shaft having a flange mounted on each end thereof for supporting therebetween the roll of paper.
  • One end of the shaft is provided with a helical thread which cooperates with a pivotal lever on one flange to releasably and adjustably mount the flange on the shaft.
  • a biasing spring urges the lever into engagement with the helical thread to releasably lock the flange on the shaft and the spring may be compressed by manually pivoting the lever against the spring force whereby the flange may be slid off of the shaft so that another roll of paper may be mounted thereon.
  • This invention relates to a device for supplying continuous sheet of paper from a rolled package used in a copying apparatus, and is especially adaptable for use with electrostatic copying apparatus.
  • it is always necessary to supply the rolled sheet constantly and surely into the exposing and developing devices of the copying apparatus in order to perform the copying operation efficiently and surely. Accordingly, it is also always required not only to supply the rolled sheet under constantly flattened out conditions into the exposing and developing devices, but to sense quickly and certainly the consumption of the rolled sheet and to hold surely, readily and quickly the reserved rolled sheet to the holding means.
  • the rolled sheet was used to supply without eliminating its re-rolling tendency, into the exposing and developing devices of the copying apparatus. Accordingly, unevenness of the exposure or of the development was apt to generate in the copied sheet. In addition to this drawback, smooth and stable supplying of the rolled sheet could not be achieved due to the clogging of the re-rolled sheet in the feeding device.
  • an ordinary limit switch has been applied to a tensioned portion of the rolled sheet as a sensing means for sensing the absence of the rolled sheet by the relaxation of the tension of the rolled sheet which relaxation is obtained by the absence of the rolled sheet.
  • the limit switch is apt to operate unreliably due to the rotational inertia force of the rolled sheet.
  • the conventional device for. mounting the rolled sheet was inconvenient for performing quickly and readily the mounting operation of the rolled sheet.
  • FIG. 1 is a partly omitted front view diagram for explaining principally the holding part of the rolled photosensitive sheet, a guiding roller and a pair of drawing out rollers in the rolled sheet supplying device used in the conventional copying apparatus,
  • FIG. 2 is a partly omitted front view diagram for illustrating principally the holding part of the rolled sheet, a guiding roller, an eliminating roller and a pair of drawing out rollers in the supplying device for the rolled sheet in accordance with the present invention
  • FIG. 3 is an explaining diagram illustrating an arrangement of improved supplying device for the rolled sheet
  • FIG. 4 is a schematic illustrating diagram showing the function of the limit switch
  • FIG. 5 is a front view diagram of a detachableflange of the rolled sheet in accordance with the present invention.
  • FIG. 6 is a sectional diagram cut along the line I-I of FIG. 5,
  • FIG. 7 is an enlarged diagram for explaining (A) portion illustrated in FIG. 2, and
  • FIG. 8 is a sectional diagram cut along the line IIII of FIG. 7.
  • supporting or holding means 1 for the rolled sheet 4 in accordance with the prior art comprises a shaft 5, a fixed flange 2, and a detachable flange 3 for fixing the mounting of the rolled sheet 4.
  • the detachable flange 3 has a boss portion 6 in which a bolt screw 7 is disposed for securing the detachable flange 3 to the shaft 5 for fixing the mounting of the rolled sheet 4 over the shaft 5.
  • the rolled sheet 4 is drawn out to the exposing and developing devices (not shown in the drawing) of the copying apparatus by way of a guiding roller 11 and a pair of drawing out rollers l4, 14.
  • an improved holding means 20 for holding the rolled sheet 24 has a shaft 25 having a saw-toothed type helical screw 30 having a helical rib and root portions.
  • a lever 27 releasably engages with the root portion of the above-described sawtoothed type screw 30 and is rotatably disposed in boss portion 26 of a detachable flange 23.
  • the lever or hook 27 is mounted for pivotal movement around a pin 29 and a tip portion 31 thereof is constantly biased against the root of the saw-toothed type screw by the biasing spring action of spring means 28.
  • Sensing means comprising a limit switch 50 having a lever 51 is disposed close to a guiding roller 41 in such an arrangement that the position of the lever 51 of the limit switch 50 corresponds to the position of an annular groove 43 which is formed annularly around the guiding roller 41.
  • the rolled sheet 24 is advanced over a peripheral portion of the guiding roller 41 and an eliminating roller 40 which eliminates the re-rolling tendency of the rolled photosensitive sheet 24 by advancing means comprising a pair of drawing out rollers 44, 44' contacting each other with a certain contacting pressure. Accordingly, after the rolled sheet 24 is completely consumed, the lever 51 of the limit switch 50 fits into the groove 43. In this condition, an electric circuit (not shown in the drawing) for actuating a warning device operates so as to inform an operator of the copying apparatus of the complete consumption of the rolled sheet 24 by means of for example, a buzzer or a warning lamp.
  • the lever 51 of the limit switch 50 contacts the grooved portion of the guiding roller 41 with the sheet between them. Therefore, as already explained above, the lever 51 of the limit switch 50 falls within the groove 43 as shown in the dotted line when the final end of the rolled sheet passes away from the guiding roller 41 and the limit switch provides a corresponding output signal.
  • the lever 51 of the limit switch 50 falls within the groove 43 of the guiding roller 41 so as to actuatea buzzer or a warning lamp (not shown in the drawing).
  • the consumption of the rolled sheet is surely and quickly detected.
  • An eliminating roller 40 is disposed between the guiding roller 41 and a pair of the drawing out rollers 44, 44' for eliminating the re-rolling tendency of the rolled sheet. The re-rolling tendency of the rolled sheet is completely eliminated by passing over the guiding roller 41, the eliminating roller and the drawing out rollers.
  • An adjusting member 48 for adjusting an axial center position of the guiding roller 41 are provided on a shaft 42 of the guiding roller 41 so as to modify the arranging position of the guiding roller 41 corresponding to a degree of the re-rolling tendency and to qualities or thickness of the rolled sheet 24.
  • the passage of the rolled sheet is selectively adjustable by the adjusting member 48 according to the degree of the re-rolling tendency and to the qualities or thickness of the rolled sheet. That is, the area of the contacting surface of the rolled sheet to the guiding roller 41, the eliminating roller 40 and the drawing out rollers 44, 44' is suitably modified so as to acquire the best eliminating conditions for the re-rolling tendency of the rolled sheet 24.
  • the detachable flange 23 is pulled out of the shaft 25 by again pushing down or depressing the arm 32 of the lever 27 so as to release the engagement between the tip portion 31 of the lever 27 and the root of the saw-toothed type screw 30.
  • a device for supporting a rolled web comprising: a shaft having opposite ends; a first flange connected to one end of said shaft; a second flange removably connected to the other end of said shaft and cooperative with said first flange to support therebetween a rolled web; and means mounting said second flange on said shaft for releasable engagement therewith in a plurality of axially spaced-apart locations along said other end and for complete removal from said shaft, said means comprising means defining a plurality of axially spacedapart grooves in said other end of said shaft, means defining a bore extending through said second flange slidably receiving therethrough said other end of said shaft, a lever pivotally mounted on said second flange manually pivotal into one position wherein same releasably engages with one of said grooves thereby releasably locking said second flange in one of said locations along said shaft and manually pivotal into another position wherein said lever is out of engagement with said shaft thereby
  • a device wherein said means defining a plurality of axially spaced-apart grooves comprises a helical rib projecting outwardly from said other end of said shaft defining a groove between each two adjacent turns of said helical rib.
  • a device wherein said lever has a first arm dimensioned to fit within said grooves when said leveris in said one position and a second arm, and means mounting said lever at a position between said first and second arms for pivotal movement into and out of said one position in response to manual depression of said second arm.
  • supporting means for rotatably supporting a roll of paper rolled in one direction into a package, said supporting means including a pair of spaced-apart opposed and rotatable flanges for receiving therebetween the roll, means mounting one of said flanges for movement toward and away from the other flange to enable the roll to be positioned between said flanges, and means including a lever pivotally mounted on said one flange for releasably locking said flanges in spaced-apart relationship; advancing means for unrolling the paper from said supporting means and advancing same along a path of travel; means disposed along said path of travel for eliminating the tendency of the paper to reroll in said one direction; a cutting device disposed along said path of travel downstream from said last-mentioned means operative to cut the paper into separate sheets; and sensing means for sensing the absence of the paper upstream from said cutting device and providing a corresponding output signal.
  • sensing means comprises a rotatable roller positioned along said path of travel and receiving around a peripheral portion thereof the paper and having means therein defining an annular groove, a pivotally mounted lever positioned in opposed relationship from said annular groove for pivotal movement towards and away from said groove, means continuously urging said lever towards said groove whereby said lever is prevented from entering said groove by the paper whenever the paper is wrapped around a peripheral portion of said roller and said lever is pivoted into said groove whenever the paper is absent from around a peripheral portion of said roller, and means responsive to pivotal movement of said lever into said groove for providing said output signal.
  • An electrophotographic apparatus comprises a rotatably mounted shaft having connected thereto in spaced-apart relationship therealong said pair of flanges, and wherein said means mounting said one flange for movement toward and away from said other flange comprises means defining an opening through said one flange slidably receiving therethrough an end portion of said shaft, and wherein said means for releasably locking said flanges includes screw threads on said end portion of said shaft releasably engageable with said lever and cooperative therewith to releasably lock said one flange on said shaft.
  • said means for eliminating the tendency of the paper to reroll in said one direction includes a pair of arcuate guiding surfaces receiving around a peripheral portion thereof the paper and cooperative together to guide same along an arcuate path effective to eliminate the natural tendency of the paper to reroll in said one direction, and means mounting said pair of arcuate guiding surfaces for relative movement toward and away from each other to selectively vary the extent of contact of the paper with said arcuate guiding surfaces whereby the rerolling tendenc of the paper may be effectively eliminated irregard ess of the t ickness of the paper or the size of the roll.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Unwinding Webs (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Advancing Webs (AREA)
US3715085D 1970-04-09 1970-09-15 Device for supplying continuous sheet of paper from a rolled package used in a copying apparatus Expired - Lifetime US3715085A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3361270 1970-04-09
JP3361170 1970-04-09
JP3483370 1970-04-13

Publications (1)

Publication Number Publication Date
US3715085A true US3715085A (en) 1973-02-06

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US3715085D Expired - Lifetime US3715085A (en) 1970-04-09 1970-09-15 Device for supplying continuous sheet of paper from a rolled package used in a copying apparatus

Country Status (3)

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US (1) US3715085A (de)
DE (1) DE2166951A1 (de)
GB (1) GB1270486A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106716A (en) * 1977-09-29 1978-08-15 Pako Corporation Paper drive mechanism for automatic photographic paper cutter
US4239404A (en) * 1978-08-17 1980-12-16 Scope Data Incorporated Paper management system for a printing device
US6820785B2 (en) * 2001-12-20 2004-11-23 Kimberly-Clark Worldwide, Inc. Electrical roll product dispenser
US6892620B2 (en) * 2001-12-19 2005-05-17 Kimberly-Clark Worldwide, Inc. Electro-mechanical roll product dispenser
US20100051738A1 (en) * 2008-09-04 2010-03-04 Darren Harvey Coreless Roll Mounting Apparatus
US20100102101A1 (en) * 2008-10-28 2010-04-29 Perrin Manufacturing Company Paper toweling dispenser apparatus
US20100301157A1 (en) * 2009-05-27 2010-12-02 Perrin Manufacturing Company Multi-function paper toweling dispenser
US20110215188A1 (en) * 2010-03-04 2011-09-08 Dispensing Dynamics International Paper towel dispensing systems
US8555761B2 (en) 2008-10-28 2013-10-15 Dispensing Dynamics International Paper sheet material dispenser apparatus
US9248988B2 (en) 2009-05-27 2016-02-02 Dispensing Dynamics International Multi-function dispenser for dispensing paper sheet material
US9345367B2 (en) 2009-05-27 2016-05-24 Dispensing Dynamics International Multi-function paper toweling dispenser
CN106325023A (zh) * 2015-06-19 2017-01-11 江西镭博钛电子科技有限公司 一种显影盒
US9730559B2 (en) 2014-04-10 2017-08-15 Dispensing Dynamics International, Llc Electro-mechanical paper sheet material dispenser with tail sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141112B (en) * 1983-06-08 1987-03-18 Xerox Corp Controlling curling of sheets

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378887A (en) * 1918-05-20 1921-05-24 Jr Thomas Pugh Martin Paper-feed alarm for adding-machines
US1551415A (en) * 1925-08-25 Reroll mechanism
US2493902A (en) * 1945-04-12 1950-01-10 Celanese Corp Textile apparatus
US2768690A (en) * 1953-07-14 1956-10-30 Bowaters Dev & Res Ltd Severing means in web feeding machines
US3404851A (en) * 1965-11-02 1968-10-08 Sulzer Ag Head for yarn package spool
US3552668A (en) * 1967-10-21 1971-01-05 Ricoh Kk Rolling curl removing device for rolled photosensitive paper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551415A (en) * 1925-08-25 Reroll mechanism
US1378887A (en) * 1918-05-20 1921-05-24 Jr Thomas Pugh Martin Paper-feed alarm for adding-machines
US2493902A (en) * 1945-04-12 1950-01-10 Celanese Corp Textile apparatus
US2768690A (en) * 1953-07-14 1956-10-30 Bowaters Dev & Res Ltd Severing means in web feeding machines
US3404851A (en) * 1965-11-02 1968-10-08 Sulzer Ag Head for yarn package spool
US3552668A (en) * 1967-10-21 1971-01-05 Ricoh Kk Rolling curl removing device for rolled photosensitive paper

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106716A (en) * 1977-09-29 1978-08-15 Pako Corporation Paper drive mechanism for automatic photographic paper cutter
US4239404A (en) * 1978-08-17 1980-12-16 Scope Data Incorporated Paper management system for a printing device
US6892620B2 (en) * 2001-12-19 2005-05-17 Kimberly-Clark Worldwide, Inc. Electro-mechanical roll product dispenser
US6820785B2 (en) * 2001-12-20 2004-11-23 Kimberly-Clark Worldwide, Inc. Electrical roll product dispenser
US20100051738A1 (en) * 2008-09-04 2010-03-04 Darren Harvey Coreless Roll Mounting Apparatus
US20100102101A1 (en) * 2008-10-28 2010-04-29 Perrin Manufacturing Company Paper toweling dispenser apparatus
US8555761B2 (en) 2008-10-28 2013-10-15 Dispensing Dynamics International Paper sheet material dispenser apparatus
US8382026B2 (en) 2009-05-27 2013-02-26 Dispensing Dynamics International Multi-function paper toweling dispenser
US20100301157A1 (en) * 2009-05-27 2010-12-02 Perrin Manufacturing Company Multi-function paper toweling dispenser
US9248988B2 (en) 2009-05-27 2016-02-02 Dispensing Dynamics International Multi-function dispenser for dispensing paper sheet material
US9345367B2 (en) 2009-05-27 2016-05-24 Dispensing Dynamics International Multi-function paper toweling dispenser
US20110215188A1 (en) * 2010-03-04 2011-09-08 Dispensing Dynamics International Paper towel dispensing systems
US8511599B2 (en) 2010-03-04 2013-08-20 Richard LaLau Paper towel dispensing systems
US9730559B2 (en) 2014-04-10 2017-08-15 Dispensing Dynamics International, Llc Electro-mechanical paper sheet material dispenser with tail sensor
USRE48957E1 (en) 2014-04-10 2022-03-08 Dispensing Dynamics International, Inc. Electro-mechanical paper sheet material dispenser with tail sensor
CN106325023A (zh) * 2015-06-19 2017-01-11 江西镭博钛电子科技有限公司 一种显影盒
CN106325023B (zh) * 2015-06-19 2023-09-08 江西镭博钛电子科技有限公司 一种显影盒

Also Published As

Publication number Publication date
GB1270486A (en) 1972-04-12
DE2117378A1 (de) 1971-11-04
DE2117378B2 (de) 1977-01-27
DE2166951A1 (de) 1977-01-20

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