US3920238A - Copy medium feed device - Google Patents

Copy medium feed device Download PDF

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Publication number
US3920238A
US3920238A US404909A US40490973A US3920238A US 3920238 A US3920238 A US 3920238A US 404909 A US404909 A US 404909A US 40490973 A US40490973 A US 40490973A US 3920238 A US3920238 A US 3920238A
Authority
US
United States
Prior art keywords
copy medium
separate
copy
drive gear
magazines
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
US404909A
Other languages
English (en)
Inventor
Tadayuki Kitajima
Masashi Suda
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP11949772U external-priority patent/JPS4974834U/ja
Priority claimed from JP11949872U external-priority patent/JPS4974835U/ja
Priority claimed from JP47103467A external-priority patent/JPS4962145A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of US3920238A publication Critical patent/US3920238A/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
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/44—Simultaneously, alternately, or selectively separating articles from two or more piles

Definitions

  • a copy medium feed device In a copying apparatus having a multi-stage copy medium magazine, a copy medium feed device includes a feed roller resting on the uppermost one of copy mediums contained in each of copy medium magazine members, a drive source for driving the feed rollers, and means for connecting the drive source to the feed rollers selectively and indispensably.
  • the feed device of the present invention may further comprise means for adjusting the lengths of the respective copy medium transport passageways from y the respective copy medium magazine members to the drive control and the distance adjustment of the copy medium transport passageway during feeding in a copying apparatus having a plurality of copy medium magazine members.
  • the feed device may further com- 'prise a" mechanism whereby all the feed rollers normally resting within the respective copy medium magazine members can be simultaneously spaced apart from .fthe magazine members during replenishment. of copy mediums.
  • FIG. 1 is a perspective view of the copy medium feed device according to an embodiment of the present intern whereby copy mediums of different classes different in size, quality of material or other factor can be loaded into respective ones of plural copy medium magazine members.
  • FIG. 2- is a cross-section of the device shown in FIG.
  • FIG. 3 is a cross-section of a copy medium feed device having a three-stage copy medium magazine for use ina copying apparatus.
  • FIG; 4 schematically shows an embodiment of the feed change-over mechanism in the copy medium feed device having a two-stage copy medium magazine.
  • FIG. 5 schematically shows another embodiment of FIG. 6 diagrammatically shows a switching circuit applicable to the embodiments of FIGS. 4 and 5.
  • FIG. 7 illustrates a copy medium as it is being nipped between transport rollers.
  • a copy medium feed device having a plurality of copy medium magazine members in which copy mediums are fed from the copy medium magazine members with the torque to the drive source being minimized by a simple mechanism.
  • the copy medium feed device comprises feed rollers normally resting on the uppermost ones of copy mediums in the form of cut sheets within a plurality of FIGS. 8a and 8b show an embodiment of the linkage in the feed change-over mechanism for the copy medium feed device having a two-state copy medium magazine.
  • FIG. 8(a) shows the position of the linkage when a movable gear meshes with a lower gear; and
  • FIG. 8b shows the position of the linkage when the movable gear meshes with the upper gear.
  • FIG.2 9a, 9b and 9c show a mechanism for lifting the feed rollers during replenishment of copy mediums.
  • FIG. 9a is a side elevational view of an embodiment of an arm mechanism which is provided, in order to lift a plurality of feed rollers simultaneously; between respective shift plates;
  • FIG. 9b is a top plan view illustrating the operations of a opening-closing member and a wire; and
  • FIG. 90 show a modification wherein the wire is replaced by a link mechanism.
  • the copying apparatus provided with a two-stage copy medium magazine which will hereinafter be described as an embodiment of the present invention is an transfer type using a photosensitive medium.
  • Each copy medium leaving the copy feed device of the present invention is conveyed to a conventional copy process station A, not shown.
  • FIG. 1 there is shown an embodimentof the present invention which includes copy medium magazine members I and 2 for containing therein copy mediums P1 and P2 of different sizes in the form of cut sheets, the magazine members each being a boxlike container readily detachable with respect to the device of the present invention.
  • a copy medium feed changeover mechanism is provided with a first and a second drive gear 3 and 4 driven from a single prime mover M, the second drive gear 4 being adapted for selective connection to transmission elements 5 and 12 to feed a desired one of the two types of copy mediums P1 and P2.
  • the second drive gear 4 may be connected to the transmission element 5 to there by rotate power transmission means 6, 7, 8, 9 and 10 in succession, which in turn results in rotation of a feed roller 11 engaged with the rotary shaft of the transmission means 10, thus feeding .a copy medium P1.
  • the second drive gear 4 may be connected to the transmission element 12 connected to power transmission means 12, 13 and 14, which transmits the drive to a feed roller 15.
  • sets of transport rollers 16, 17 and 18, 19 are discretely provided for copy mediums P1 and P2, respectively, and these transport rollers constitute timing rollers which ensure the mechanism to effect the feeding simply and reliably.
  • a copy medium P1 being so fed passes, as shown in FIG. 2, along a transport passageway 20 to the transport rollers 16, 17 which transport the copy medium along a transport passageway 21 to transport rollers 24, 25, through which the copy medium passes along a transport passageway 26 to the copy process station A.
  • a copy medium P2 if fed, passes along a transport passageway 22 to the transport and timing rollers 18, 19 and further along a transport passageway 23 which ultimately joins the aforesaid passageway 21 for copy medium P1, whereafter the copy medium P2 is passed to the copy medium process station A by the transport rollers 24, in the same manner as described above with respect to the copy medium P1.
  • the feed device according to the present invention is, as shown in FIGS. 2 and 3, provided with means for adjusting the length of the transport passageway by using the series of transport passageways for one type of copy mediums as a reference to adjust the length of the series of transport passageways for another type of copy mediums.
  • FIG. 2 shows such a passageway adjust means for the feed device having a twostage copy medium magazine but
  • FIG. 3 shows a passageway adjust means for the feed device having a three-stage copy medium magazine.
  • the passageway adjust means invloves rotation of a screw 27 which causes a member 45 engaged with the transport passageway to be rotated about a pivot 44 to thereby adjust the length of the transport passageway for copy mediums.
  • FIGS. 4 and 5 show the feed change-over mechanism of the present invention employed in the feed device having a twostage copy medium magazine.
  • a switch SW may be closed at its contact A to thereby permit a current flow to an electromagnetic plunger MGl, whose actuator is I thus moved in the direction of arrow to thereby pivot a shift plate 27 about a pivot 28.
  • one end of the shift plate is moved in the direction of arrow to thereby move an arm 30 in the direction of arrow with t the aid of pivots 29 and 31 which pivotally mount the arm.
  • the arm 30 pushes the pivot 31 in the direction of arrow and this in turn causes a drive gear mounting plate 32 to be rotated about a shaft 33in the direction of arrow. This rotation brings the gear 3,.
  • FIG. 8 a shows a position in which the drive gear 4 is meshing with the gear 12
  • FIG. 8b shows a position in which the drive gear 4 is meshing with the gear 5.
  • Replenishment of copy mediums may generally be accomplished by withdrawing the copy medium magazine and loading it with copy mediums.
  • the withdrawal of the magazine must take place after the feed rollers have 'been lifted. Even in such cases, however, withdrawal of the copy medium magazine can be readily ensured by configuring the copy medium feed device of the present invention as will hereinafter be described with respect to FIGS. 9a, b and c. As will be seen in FIG.
  • a plurality of feed rollers 11 and 15 are rotatably mounted on shift plates 34 and 35 pivotable about pivots 39 and 40, respectively, and these shift plates 34 and 35 are interconnected by an arm 36.
  • the arm 36 is provided with a projection 36', around and to which a wire 42 is wrappedand secured.
  • the wire 42 is deflected by a pulley 41 and secured at the other end to a portion of a lid or like opening-closing means 43 which is opened and closed for replenishment of copy mediums.
  • the opening-closing movement of the opening-closing means 43 results in simultaneous upward movements of the feed rollers 11 and 15.
  • the position change of the opening-closing means 43 from its closed position indicated by dashed lines in FIG. 9b to its open position indicated by full lines causes jump-up of all rollers, thus permitting any desired copy medium magazine member to be withdrawn by a single operation.
  • the arm 36 may be replaced by a wire or a cam having a mechanical durability.
  • the arm 36 may be connected to the opening-closing means 43 through a linkage formed by an arm 46 having an intermediate universal joint 53, an arm 47 pivotally connected to the arm 46 by means of a pivot 49 and fixed at a pivot 52, and an arm 48 pivotally connected to the arm 47 by means of a pivot 50 and to the opening-closing means 43 by means of a pivot 51.
  • the feed device has been shown and described as having a twostage copy medium magazine, whereas it is to be understood that the present invention is applicable to the devices having more than two stages of copy medium magazine.
  • a copy medium feed device for a copying apparatus having a copying station including a single set of feed rollers for feeding a copy medium to the copying station, said copy medium feed device comprising:
  • shift means including a second drive gear movable between each of said separate force transmitting means for transmitting a rotating force to a selected one of said separate transport rollers through the corresponding separate force transmitting means, and a first drive gear interrelated with said second drive gear;
  • passageway means for transporting copy medium from each of said magazines to the feed rollers of the copying station, said passageway means being respectively provided between the feed rollers of the copying station and each of said magazines.
  • said shift means further comprises a first rocker plate on which said movable second drive gear and said first drive gear interrelated therewith are mounted, said first rocker plate being pivotable about the center of the first drive gear to selectively engage the movable second drive gear with one of said separate force transmitting means.
  • the copy medium feed device of claim 2 further comprising a connecting arm pivotably mounted on said first rockerplate, a resilient member for biasing the movable second drive gear mounted on said first rocker plate against one of said separate force transmitting means, a second rocker plate pivotable about a fixed shaft and rotatably engaged with said connecting arm and driving means for pivoting said second rocker plate about said fixed shaft which in turn pivots said first rocker plate through said connecting arm.
  • a copy medium feed device for a copying apparatus, said feed device including a plurality of copy medium magazines each containing copy medium and means for transporting a copy medium from each of said magazines to a copying station of the copying apparatus; the improvement comprising:
  • an opening-closing member provided in an outer casing of the copying apparatus and which is openable when loading said magazines with copy medium;
  • a'copy medium feed device for a copying apparatus, said feed device including a plurality of copy medium magazines each containing copy medium and means for transporting a copy medium from each of said magazines to a copying station of the copying apparatus; the improvement comprising:
  • each transport means including a pivotable rocker plate and a transport roller mounted adjacent one end thereof for contacting the copy mediumand feeding a copy medium to the coyping station;
  • first rocker plate being pivotable about the center of the first drive gear to selectively engage the movable second drive gear with one of said separate force transmitting means.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US404909A 1972-10-16 1973-10-10 Copy medium feed device Expired - Lifetime US3920238A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11949772U JPS4974834U (enrdf_load_stackoverflow) 1972-10-16 1972-10-16
JP11949872U JPS4974835U (enrdf_load_stackoverflow) 1972-10-16 1972-10-16
JP47103467A JPS4962145A (enrdf_load_stackoverflow) 1972-10-16 1972-10-16

Publications (1)

Publication Number Publication Date
US3920238A true US3920238A (en) 1975-11-18

Family

ID=27309999

Family Applications (1)

Application Number Title Priority Date Filing Date
US404909A Expired - Lifetime US3920238A (en) 1972-10-16 1973-10-10 Copy medium feed device

Country Status (5)

Country Link
US (1) US3920238A (enrdf_load_stackoverflow)
CA (1) CA1001180A (enrdf_load_stackoverflow)
DE (1) DE2351879C2 (enrdf_load_stackoverflow)
FR (1) FR2203368A5 (enrdf_load_stackoverflow)
GB (1) GB1452127A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017181A (en) * 1973-05-08 1977-04-12 Canon Kabushiki Kaisha Copy medium carrier
US4155544A (en) * 1977-12-29 1979-05-22 Pitney-Bowes, Inc. Sheet feeding device and method
US4214740A (en) * 1978-05-02 1980-07-29 Xerox Corporation Sheet reversing mechanism
US4390296A (en) * 1980-09-19 1983-06-28 Autelca, Ag Printing machine
US4418903A (en) * 1978-04-20 1983-12-06 Savin Corporation Large capacity combination magazine and sheet feeder for copying machines
US4442744A (en) * 1981-11-30 1984-04-17 Raymond Gary E Apparatus for supplying photographic sheet materials, for use in a darkroom
US4660963A (en) * 1985-12-30 1987-04-28 Xerox Corporation Auto duplex reproduction machine
US4693459A (en) * 1979-11-26 1987-09-15 Konishiroku Photo Industry Co., Ltd. Sheet feeding system in recording apparatus
US4708462A (en) * 1985-12-30 1987-11-24 Xerox Corporation Auto duplex reproduction machine
US4708468A (en) * 1985-12-30 1987-11-24 Xerox Corporation Self adjusting paper guide
US4798374A (en) * 1985-11-08 1989-01-17 Brother Kogyo Kabushiki Kaisha Switchable automatic or manual mode paper feeding device having a bidirectionally operated motor for a printer
US5565970A (en) * 1992-06-05 1996-10-15 Canon Kabushiki Kaisha Image forming apparatus
EP0879779A1 (en) * 1997-05-21 1998-11-25 Canon Kabushiki Kaisha mpparatus having several medium cassettes with respective feeding units adapted to the characteristics of the stored medium
US5933697A (en) * 1994-03-24 1999-08-03 Canon Kabushiki Kaisha Image forming apparatus with curl generating means
US6322065B1 (en) * 1999-12-22 2001-11-27 Hewlett-Packard Company Hinged-arm pick mechanism
US20090243186A1 (en) * 2008-03-31 2009-10-01 Brother Kogyo Kabushiki Kaisha Sheet feed devices and image recording apparatuses comprising such sheet feed devices
US9272546B2 (en) * 2014-07-18 2016-03-01 Canon Kabushiki Kaisha Sheet feeding apparatus
CN111086907A (zh) * 2019-12-16 2020-05-01 杭州日美开开电子科技有限公司 一种印控机双导纸机构

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742862B2 (enrdf_load_stackoverflow) * 1974-05-18 1982-09-10
US4098551A (en) * 1975-02-13 1978-07-04 Canon Kabushiki Kaisha Both side copying machine
JPS53107843A (en) * 1977-03-02 1978-09-20 Canon Inc Copier
DE2717345C2 (de) * 1977-04-19 1984-10-25 Nixdorf Computer Ag, 4790 Paderborn Wertscheingeber
JPH0779402B2 (ja) * 1981-12-04 1995-08-23 富士ゼロックス株式会社 カット紙ファクシミリ
JPS594546A (ja) * 1982-06-10 1984-01-11 Konishiroku Photo Ind Co Ltd 複写機における給紙装置
EP0106291B1 (en) * 1982-10-08 1991-12-27 Canon Kabushiki Kaisha Image processing system
US5276533A (en) * 1982-10-08 1994-01-04 Canon Kabushiki Kaisha Image processing system
JPS61155149A (ja) * 1984-12-27 1986-07-14 Sharp Corp 駆動力の間欠伝達装置
JPH04371430A (ja) * 1991-06-18 1992-12-24 Mita Ind Co Ltd 用紙搬送装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306491A (en) * 1964-10-14 1967-02-28 American Photocopy Equip Co Apparatus and structure for handling copy paper
US3512479A (en) * 1967-10-31 1970-05-19 Amadyne Inc Automated overchute feed mechanism for a printing press and control systems therefor
US3601394A (en) * 1969-07-03 1971-08-24 Xerox Corp Sheet retaining apparatus
US3753560A (en) * 1972-01-03 1973-08-21 Xerox Corp Auxiliary sheet feeder
US3765327A (en) * 1971-10-04 1973-10-16 Ira B Kristel Dual feeding printing press

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR481931A (fr) * 1916-06-02 1917-01-31 Claude Francois Pichard Dispositif d'embrayage avec verrouillage automatique
US3645615A (en) * 1969-07-03 1972-02-29 Xerox Corp Copying apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306491A (en) * 1964-10-14 1967-02-28 American Photocopy Equip Co Apparatus and structure for handling copy paper
US3512479A (en) * 1967-10-31 1970-05-19 Amadyne Inc Automated overchute feed mechanism for a printing press and control systems therefor
US3601394A (en) * 1969-07-03 1971-08-24 Xerox Corp Sheet retaining apparatus
US3765327A (en) * 1971-10-04 1973-10-16 Ira B Kristel Dual feeding printing press
US3753560A (en) * 1972-01-03 1973-08-21 Xerox Corp Auxiliary sheet feeder

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017181A (en) * 1973-05-08 1977-04-12 Canon Kabushiki Kaisha Copy medium carrier
US4155544A (en) * 1977-12-29 1979-05-22 Pitney-Bowes, Inc. Sheet feeding device and method
US4418903A (en) * 1978-04-20 1983-12-06 Savin Corporation Large capacity combination magazine and sheet feeder for copying machines
US4214740A (en) * 1978-05-02 1980-07-29 Xerox Corporation Sheet reversing mechanism
US4693459A (en) * 1979-11-26 1987-09-15 Konishiroku Photo Industry Co., Ltd. Sheet feeding system in recording apparatus
US4390296A (en) * 1980-09-19 1983-06-28 Autelca, Ag Printing machine
US4442744A (en) * 1981-11-30 1984-04-17 Raymond Gary E Apparatus for supplying photographic sheet materials, for use in a darkroom
US4798374A (en) * 1985-11-08 1989-01-17 Brother Kogyo Kabushiki Kaisha Switchable automatic or manual mode paper feeding device having a bidirectionally operated motor for a printer
US4708468A (en) * 1985-12-30 1987-11-24 Xerox Corporation Self adjusting paper guide
US4660963A (en) * 1985-12-30 1987-04-28 Xerox Corporation Auto duplex reproduction machine
US4708462A (en) * 1985-12-30 1987-11-24 Xerox Corporation Auto duplex reproduction machine
US5565970A (en) * 1992-06-05 1996-10-15 Canon Kabushiki Kaisha Image forming apparatus
US5933697A (en) * 1994-03-24 1999-08-03 Canon Kabushiki Kaisha Image forming apparatus with curl generating means
US6176481B1 (en) 1997-05-21 2001-01-23 Canon Kabushiki Kaisha Apparatus having conveying means of medium
EP0879779A1 (en) * 1997-05-21 1998-11-25 Canon Kabushiki Kaisha mpparatus having several medium cassettes with respective feeding units adapted to the characteristics of the stored medium
US6322065B1 (en) * 1999-12-22 2001-11-27 Hewlett-Packard Company Hinged-arm pick mechanism
US6637743B2 (en) 1999-12-22 2003-10-28 Hewlett-Packard Development Company, L.P. Hinged-arm pick mechanism
US20040017038A1 (en) * 1999-12-22 2004-01-29 Underwood John A. Hinged-arm pick mechanism
US6866259B2 (en) 1999-12-22 2005-03-15 Hewlett-Packard Development Company, L.P. Hinged-arm pick mechanism
US20090243186A1 (en) * 2008-03-31 2009-10-01 Brother Kogyo Kabushiki Kaisha Sheet feed devices and image recording apparatuses comprising such sheet feed devices
US7857301B2 (en) * 2008-03-31 2010-12-28 Brother Kogyo Kabushiki Kaisha Sheet feed devices and image recording apparatuses comprising such sheet feed devices
US9272546B2 (en) * 2014-07-18 2016-03-01 Canon Kabushiki Kaisha Sheet feeding apparatus
CN111086907A (zh) * 2019-12-16 2020-05-01 杭州日美开开电子科技有限公司 一种印控机双导纸机构

Also Published As

Publication number Publication date
GB1452127A (en) 1976-10-13
DE2351879C2 (de) 1983-11-10
AU6144673A (en) 1975-04-17
DE2351879A1 (de) 1974-04-25
FR2203368A5 (enrdf_load_stackoverflow) 1974-05-10
CA1001180A (en) 1976-12-07

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