US3501375A - Decurling device for rolled copy paper in a copier - Google Patents

Decurling device for rolled copy paper in a copier Download PDF

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Publication number
US3501375A
US3501375A US672251A US3501375DA US3501375A US 3501375 A US3501375 A US 3501375A US 672251 A US672251 A US 672251A US 3501375D A US3501375D A US 3501375DA US 3501375 A US3501375 A US 3501375A
Authority
US
United States
Prior art keywords
copy paper
paper
decurling
roller
copier
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
US672251A
Other languages
English (en)
Inventor
Shigeru Suzuki
Tadaaki Kanno
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Application granted granted Critical
Publication of US3501375A publication Critical patent/US3501375A/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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/34—Apparatus for taking-out curl from webs
    • 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

Definitions

  • FIG. 1 A first figure.
  • FIG. 1 A first figure.
  • a decurling device for rolled copy paper wherein a paper pressing roller which presses copy paper drawn from a copy paper roll against a decurling roller is journaled at a fixed location at a lower part of a paper mounting bracket, the paper pressing roller being separated from the decurling roller when the bracket is tilted downwardly to mount a roll of copy paper thereon, whereby difiiculty in the loading of the printing paper caused by the mounting of the decurling roller, which bends the path of the copy paper, is avoided.
  • This invention relates to a device for decurling copy paper drawn from a copy paper roll in a copier and to a device to cut the paper in designated lengths.
  • FIG. 1 is a side view of a decurling device for rolled p p p
  • FIG. 2 is a side view of said decurling device wherein the rolled paper mounting bracket is inclined to the left;
  • FIG. 3 is a perspective view illustrating only the mounting bracket.
  • Reference number 1 denotes a base plate of the copier.
  • 2 denotes a top plane.
  • 3 denotes a cover which is freely removable from the side of the box type copier.
  • 4 denotes a partition plate fixed to said base plate 1.
  • a well-known charging device and an exposure device may be provided in the case of an electrostatic copier, or an exposure device may be provided in the case of another copier.
  • a mounting bracket 6 for a copy paper roll 5 is mounted at a pair of side plates of the copier facing each other (not 3,501,375 Patented Mar. 17, 1970 shown in the figures) by means of a shaft 7 so that said bracket 6 may be freely moved up and down.
  • Said mounting bracket 6 comprises a pair of side plates 6a and 6b and a guide plate 8 with said side plates 6a and 6b fixed onto both sides.
  • a paper pressing roller 9 is journaled for rotation at a fixed location at a lower part of said bracket 6.
  • Notches 10a and 10b at the upper ends of both side plates serve to mount a spindle 5a of the paper roll 5.
  • a knob or handle 11 is provided on the side plate 6b .
  • the mounting bracket 6, when placed at the stationary position shown in FIG. 1, is prevented from undergoing clockwise rotation around the shaft 7 by engagement of the side plate 6b against a stopper (not shown in the drawing).
  • a roller 12 which is far smaller in diameter than a core 5b for the copy paper is provided near the paper pressing roller 9.
  • the copy paper drawn from the paper roll moves while pressed against the circumference of the roller 12 by the pressing roller 9 and thereby the curl caused in the copy paper roll is removed.
  • Reference numbers 13 and 14 denote feed rollers which advance the copy paper forward.
  • 16 denotes a release lever on which said feed roller 14 is journaled and the lower edge 16a is positioned above a projecting shaft 9a of the pressing roller 9.
  • 15 denotes a shaft of the release lever 16.
  • 17 denotes a fixed knife blade.
  • 18 denotes a mOVable knife blade which cuts the copy paper drawn out of the copy paper roll in designated lengths, by cooperating with the fixed knife blade 17.
  • 19 and 20 denote rollers which feed the copy paper through a slit 4a into the exposure device or the charging device.
  • the mounting bracket 6 When the copy paper roll 5 is replaced or when a new copy paper roll 5 is mounted, as indicated in FIG. 2, the mounting bracket 6 is rotated on the shaft 7 after removing the cover.
  • the guide plate 8 When the mounting bracket 6 is rotated, the guide plate 8 is made horizontal and at the same time the paper pressing roller 9 moves obliquely upward away from the decurling roller 12, so that the copy paper 5a drawn out of the paper roll may be inserted straight into the gap between the feed rollers 13 and 14.
  • the mounting bracket 6 is inclined to the mounting position as shown in FIG. 2, the lower edge 16a of the release lever 16 is pushed up by projecting shaft 9a and thereby the feed roller 14 is separated from the roller 13.
  • a device for decurling rolled copy paper comprising a paper mounting bracket movable between a mounting position in which a roll of paper can be mounted thereon and an operative position in which paper is drawn from the roll, a paper pressing roller journaled on said paper mounting bracket, and a decurling roller having a diameter smaller than that of the core of the copy paper roll; said paper pressing roller pressing copy paper drawn from the copy paper roll against said decurling roller so that said copy paper may be decurled, said paper pressing roller being separated from said decurling roller when said paper mounting bracket is moved to said mounting position.
  • a device for decurling rolled copy paper as claimed in claim 1, comprising a guide plate on said bracket movable therewith to a position where the leading edge of the copy paper is guided by the guide plate for insertion between the pressing and decurling rollers.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Replacement Of Web Rolls (AREA)
US672251A 1966-10-24 1967-10-02 Decurling device for rolled copy paper in a copier Expired - Lifetime US3501375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1966098466U JPS4322077Y1 (enrdf_load_stackoverflow) 1966-10-24 1966-10-24

Publications (1)

Publication Number Publication Date
US3501375A true US3501375A (en) 1970-03-17

Family

ID=14220440

Family Applications (1)

Application Number Title Priority Date Filing Date
US672251A Expired - Lifetime US3501375A (en) 1966-10-24 1967-10-02 Decurling device for rolled copy paper in a copier

Country Status (3)

Country Link
US (1) US3501375A (enrdf_load_stackoverflow)
JP (1) JPS4322077Y1 (enrdf_load_stackoverflow)
NL (1) NL6713823A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326915A (en) * 1979-11-15 1982-04-27 Xerox Corporation Sheet de-curler
US4390146A (en) * 1980-07-29 1983-06-28 Karim Jorephani Apparatus suitable for use in removing or reducing a crease or tangle in a magnetic recording tape of a cassette

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241868Y2 (enrdf_load_stackoverflow) * 1972-11-27 1977-09-22
JPS5255532A (en) * 1975-10-31 1977-05-07 Hitachi Ltd Paper feed device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1654946A (en) * 1927-05-12 1928-01-03 Charles M Sinks Automatic paper-straightening attachment for adding machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1654946A (en) * 1927-05-12 1928-01-03 Charles M Sinks Automatic paper-straightening attachment for adding machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326915A (en) * 1979-11-15 1982-04-27 Xerox Corporation Sheet de-curler
US4390146A (en) * 1980-07-29 1983-06-28 Karim Jorephani Apparatus suitable for use in removing or reducing a crease or tangle in a magnetic recording tape of a cassette

Also Published As

Publication number Publication date
NL6713823A (enrdf_load_stackoverflow) 1968-04-25
DE1561909A1 (de) 1970-10-08
JPS4322077Y1 (enrdf_load_stackoverflow) 1968-09-17

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