US3831829A - Copy machine feeding means - Google Patents

Copy machine feeding means Download PDF

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Publication number
US3831829A
US3831829A US00359664A US35966473A US3831829A US 3831829 A US3831829 A US 3831829A US 00359664 A US00359664 A US 00359664A US 35966473 A US35966473 A US 35966473A US 3831829 A US3831829 A US 3831829A
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US
United States
Prior art keywords
paper
sprocket
drive
gear
drive shaft
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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
US00359664A
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English (en)
Inventor
L Karpisek
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NASHUA AU Pty Ltd
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NASHUA AU Pty Ltd
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Publication of US3831829A publication Critical patent/US3831829A/en
Assigned to WILMINGTON TRUST COMPANY A DE BANKING CORP. TRUSTEE UNDER THE TRUST AGREEMENT, WADE, WILLIAM J. INDIVIDUAL TRUSTEE UNDER THE TRUST AGREEMENT reassignment WILMINGTON TRUST COMPANY A DE BANKING CORP. TRUSTEE UNDER THE TRUST AGREEMENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NASHUA CORPORATION A DE CORP.
Assigned to WILMINGTON TRUST COMPANY, A DE BANKING CORP. reassignment WILMINGTON TRUST COMPANY, A DE BANKING CORP. AMENDMENT OF TRUST AGREEMENT AND COLLATERAL DOCUMENTS Assignors: NASHUA CORPORATION A DE CORP.
Assigned to NASHUA CORPORATION A DE CORP reassignment NASHUA CORPORATION A DE CORP RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WADE, WILLIAM J. INDIVIDUAL TRUSTEE, WILMINGTON TRUST COMPANY A DE BANKING CORP. (TRUSTEE)
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/20—Advancing webs by web-penetrating means, e.g. pins
    • 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
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/625—Apparatus which relate to the handling of originals, e.g. presence detectors, inverters
    • G03B27/6264—Arrangements for moving several originals one after the other to or through an exposure station

Definitions

  • This invention relates to a new and improved feeding apparatus for photo copying machines and more particularly it relates to apparatus for continuous feeding and copying of computer type paper, on flat bed type photo copying machines.
  • the present invention provides a new and improved paper feeding apparatus which will overcome the above difficulties and prove reliable and efficient in operation.
  • a further aspect of this invention provides such apparatus which may be set to do a specified number of copies of any or each section of the sheet to be copied before automatically moving to the next section to be copied.
  • the paper feeding device may be an integral feature with the photo copying apparatus or as a separate detachable feature as shown by the particular embodiment described.
  • apparatus for sequentially feeding paper or the like across the platen glass of a photo copier comprising a housing, drive motor means wherein the output drive of said motor means is coupled via a gearbox arrangement to a drive shaft, drive sprocket means on said drive shaft for engaging perforations in said paper such that when said drive shaft and sprocket means rotate the apparatus feeds the paper to be copied if the perforations in said paper are located on the sprocket means, actuator means in said gearbox to engage the output drive of said motor means with the drive shaft when a present number of copies of a section of the paper have been made by said photo copier whereupon said sprocket means transports a present length of paper across the platen glass and then said motor output drive disengages from the drive shaft thereby operating the photo copier.
  • FIG. 1 is a perspective view of a paper feeding apparatus in accordance with the present invention
  • FIG. 2 shows a main tray assembly to be employed in conjunction with the embodiment of FIG. 1,
  • FIG. 3 shows a typical paper dispensing tray which is detachable from the main tray of FIG. 2,
  • FIG. 4 is a perspective view of a paper receiving tray which is most suitable for receiving computer type fanfold punched edge paper
  • FIG. 5 is an end elevation view showing the layout of a copying machine with the items of FIGS. 1 to 4 in position during operation
  • FIG. 6 is a sectional view of the feeder apparatus of FIG. 1,
  • FIGS. 7 and 8 are part sectional views showing the operation of a preferred means for setting the displace- FIG. 10 is an end elevation of the apparatus of FIG.
  • FIG. 11 is the sectional view AA of FIG. 10,
  • FIG. 12 is a sectional view B-B of FIG. 10 with the solenoid energized
  • FIG. 13 is the sectional view C-C of FIG. 10 with the solenoid energized.
  • the main tray shown in FIG. 2 is of any suitable width and has a length sufficient to pass completely beneath a photo copying machine.
  • Two elongated brackets 8 extend in a direction transverse to the length of the tray, which brackets secure the tray by conventional means such as bolts or clamps to the underside of the photo copying machine.
  • the main tray is particularly characterized by a sliding portion 7 having a width equal to that of the main tray on which sliding portion 7 is mounted the drive means of FIG. 1.
  • the main tray at all times remains attached to the photo copying machine and when the drive means of the present invention is not required the sliding portion 7 of the tray is retracted to a position under the photo copying machine so avoiding hinderance to an operator.
  • the sliding portion 7 of the tray has a handle attached to its leading edge such that the sliding portion may be pulled out and the main tray so converted to the operable position when copying of continuous paper such as computer paper, is required.
  • the paper dispensing tray as shown in FIG. 3 is made of any suitable material such as sheet metal or plastic and is conventionally clipped to the end of the main tray at position 10 remote from the sliding portion 7.
  • the drive means of FIG. 1 comprises a frame having a width similar to that of the main tray of FIG. 2 and a depth sufficient to house the necessary components.
  • the base of the drive means frame is thus located precisely by bracket 11 on the extended sliding portion 7 of the tray.
  • the height of the drive means frame is substantially equal to the distance between the main tray and the photo copying glass.
  • a gear box 1 At one end of the frame is located a gear box 1 for regulating the amount of paper which is pulled across the copying glass in a given copying operation.
  • a drive shaft 5 Rotatably attached to the two ends of the drive means frame and extending therebetween at the upper portion thereof is a drive shaft 5, which shaft extends from drive wheel 13 within the gear box 1, and has fixedly attached in spaced apart relationship two drive sprockets 16 enclosed by shrouds 2.
  • the distance between the sprockets 16 may be varied by turning knob 4 situated at the end of the drive means frame remote from the gear box, the knob is adapted to turn lead screw 17 situated within the drive shaft 5 (see FIGS. 6, 7 and 8) and extending substantially the entire length thereof.
  • One sprocket remains in an axially fixed position while the other sprocket is keyed to the lead screw as shown by FIG. 6.
  • paper guide 3 which paper guide is slidably located on drive shaft 5 so that it may be conveniently positioned along the shaft 5 to a point midway between the sprockets 16 to thereby support the paper as it is fed by the drive sprockets.
  • the effect of axially depressing and turning the knob 4 (FIGS. 7 and 8) in a clockwise direction is to draw the axially movable sprocket toward the axially fixed sprocket such that when the desired separation to accept a specified width of paper between the sprockets 16 is attained the paper guide may be slidably located midway between the two sprockets.
  • Such sprocket adjustment is desired when papers of different widths are to be copied.
  • the lower portion of the drive means frame houses an electric motor 22 which motor is connected to an electrical supply through the photo copying machine.
  • pulley 23 over which a belt, connected to a further pulley 24, runs.
  • the said pulleys are situated at the end of the frame remote from the gear box as shown in FIG. 6.
  • the abovementioned further pulley 24 is rigidly attached to transfer shaft 25 which extends substantially the width of the drive means frame A and terminates in drive gear 19 within the gear box 1, the drive gear 19 being rigidly attached to the transfer shaft.
  • the gear box 1 is further characterized by a rocker bracket 20 rotatably located about the transfer shaft 25 adjacent the drive gear 19, which rocker bracket has a T-shape configuration as shown by section CC of FIG. such that one of the extremities is attached to s solenoid valve 21, another extremity is attached to idler wheel 18 and the third extremity 33, which forms the upright of the T, is characterized by a pawl adapted for engagement in the teeth of drive wheel 13.
  • the plunger of the solenoid 21 is pivotally attached to an extremity of the rocket bracket below the horizontal plane of the transfer shaft 25.
  • the idler wheel 18 rotatably attached to the rocker bracket 20 above the horizontal plane of the transfer shaft is in constant mesh with drive gear 33.
  • the motor 22 which is electrically connected to the photo copying machine runs continuously while the photo copying machine is switched on. It follows therefor that the drive gear 19 rigidly attached to the transfer shaft 25, and the idler wheel 18, run continuously. Situated in the gear box directly above the transfer shaft 25 is the drive shaft 5 and drive wheel 13 rigidly attached thereto. Over the extremity of the drive shaft within the gear box is rotatably located a feed control wheel assembly, which assembly comprises a gear wheel 12 adjacent the drive wheel 13, a feed control disc 30 of substantially the same diameter as the drive wheel, the wheel 12 and disc 30 are mounted on a common hub, about the extremity of the common hub and adjacent control disc 13 a spiral return spring 14 is situated. The spiral type return spring 14 is attached at its outer end to the drive means frame and at its inner end to the hub (see FIG. 11).
  • a rotatable retracting pin assembly is provided, the pin 34 of the assembly 15 forms a stop to prevent the feed control wheel assembly, drive wheel and drive shaft from rotating through more than a predetermined angular displacement. Such prevention is achieved by the retractable pin 34 operating as a stop against spigot 31 attached to the feed control disc 30.
  • a series of holes 35 are provided in the outer wall of the gear box through which the retractable pin 34 may be inserted. All the holes lie on the same radius about the projected center of the drive shaft so allowing the setting of a predetermined angle of rotation before pin 34 contacts spigot 31 to limit the length of paper fed across the copier by drive sprockets l6.
  • FIG. 9 there is shown retaining plate 29 which slots over each drive sprocket 16 to retain the punched edges of the paper in contact with the sprocket during paper feed across the copying bed of the photo copier.
  • the retaining plate is withdrawn by knob 28 from the shroud 2 to a position where locating shaft 36 is engaged by the spring loaded ball 37. The punched edge paper may then be inserted and the retaining plate returned to its operative position against shroud 2.
  • Paper feeder (FIG. 1), main tray (FIG. 2), dispensing and receiving trays (FIGS. 3 and 4) are arranged in conjunction with a flat bed photo copying machine as shown in FIG. 5.
  • the photo copying machine as well as the motor 22 of the feeder via switch 38 are switched on and the leading portions of the paper to be copied are taken from the dispensing tray (FIG. 3), located across the copying glass (see FIG. 5), the perforations at the sides thereof located over the pins of the drive sprockets 16 and retaining plates 29 placed over said sprockets for maintaining the paper on the said pins.
  • the lever of a micro-switch (not shown) which protrudes through a slot in one of the shrouds is depressed by the overlying paper and the switch is operative to electrically couple the solenoid with the control on the copier for setting a specified number of copies to be made of a sheet so that the solenoid valve will not operate to allow paper feed until the set number of copies of a particular sheet have been made.
  • the paper is located across the photo copier and engaged on the drive sprockets 16 of the feeder device as described above.
  • the copier is then operated and as the photo scanner of the copier begins its return stroke, the solenoid valve 21 is actuated to withdraw its plunger inwardly (see FIG. 12) and thereby pulls pawl 33 out of engagement with the drive wheel 13, simultaneously the idler wheel 18, which is in constant mesh with drive gear 19, engages the drive wheel and the gear wheel 12 of the feed control wheel assembly.
  • the drive shaft and the feed control assembly are thereby caused to rotate so rotating the sprockets 16 thus pulling the paper to be copied across the platen glass of the copier. Rotation of the sprockets 16 is terminated when the spigot 31 on the feed control disc contacts the pin 34 as the gear wheel 12 on a common hub with the control disc and the drive wheel 30 are commonly in mesh with the continuously driven idler wheel 18.
  • the solenoid is de-energized and its plunger is withdrawn from the body of the solenoid by spring 39 so that the pawl 33 engages the drive wheel 30 which the idler wheel 18 is unmeshed from both drive wheel 30 and gear wheel 12.
  • the spiral spring 14 returns the control disc and wheel 12 to their initial position where spigot 31 contacts stop 32 affixed to the feeder frame.
  • Apparatus for sequentially feeding paper or the like across the platen glass of a photo copier comprising a housing, drive motor means wherein the output drive of said motor means is coupled via a gearbox arrangement to a drive shaft, drive sprocket means on said drive shaft for engaging perforations in said paper such that when said drive shaft and sprocket means rotate the apparatus feeds the paper to be copied if the perforations in said paper are located on the sprocket means, actuator means in said gearbox to engage the output drive of said motor means with the drive shaft when a present number of copies of a section of the paper have been made by said photo copier whereupon said sprocket means transports a present length of paper across the platen glass and then said motor output drive disengages from the drive shaft thereby operating the photo copier.
  • the apparatus of claim 1 further comprising a paper feed tray and a paper dispensing tray.
  • drive sprocket means comprise two sprocket wheels, each within a shroud and having teeth protruding from a slot in their respective shrouds further comprising a slotted paper retaining plate on each shroud for holding the paper down on the sprockets during transport of said paper.
  • the actuator means comprises a solenoid valve automatically energized by a copy number selector on the photo copier when the present number of copies of a sheet have been made such that the plunger of the solenoid valve is operative to engage an idler gear with a gear sprocket on said drive shaft, said idler gear being in continuous mesh with a gear on the output drive of said motor means and which motor means is constantly running when the apparatus is switched on, further comprising spring bias means to disengage said idler gear from the gear sprocket on the drive shaft when the present length of paper has been transported by the drive sprocket means.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
US00359664A 1972-05-16 1973-05-14 Copy machine feeding means Expired - Lifetime US3831829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA896672 1972-05-16

Publications (1)

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US3831829A true US3831829A (en) 1974-08-27

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US00359664A Expired - Lifetime US3831829A (en) 1972-05-16 1973-05-14 Copy machine feeding means

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US (1) US3831829A (fr)
JP (1) JPS4950921A (fr)
DE (1) DE2324121A1 (fr)
FR (1) FR2185299A5 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082263A (en) * 1975-06-30 1978-04-04 International Business Machines Corporation Document feeding apparatus
US4238160A (en) * 1978-06-02 1980-12-09 C. Itoh Electronics, Inc. Media guide
US4500023A (en) * 1981-08-20 1985-02-19 Epson Corporation Paper feeding apparatus for printers
US4526309A (en) * 1982-09-13 1985-07-02 Xerox Corporation Compatible copying of computer form documents
US6244686B1 (en) * 1999-04-23 2001-06-12 Xerox Corporation Print head drive mechanism
US6546227B2 (en) * 2001-08-17 2003-04-08 Fujitsu Limited Continuous-medium-box feeding device having a stand-by table capable of feeding a continuous-medium box on a set table
US10336565B2 (en) * 2014-05-30 2019-07-02 Hewlett-Packard Development Company, L.P. Drivers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551707A (en) * 1947-02-27 1951-05-08 William J Helm Chronometric display and control device
US3381867A (en) * 1965-10-14 1968-05-07 Mohawk Data Sciences Corp Paper feed drive system for high speed printers
US3682544A (en) * 1970-10-26 1972-08-08 Burroughs Corp Electronic controller for copying machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551707A (en) * 1947-02-27 1951-05-08 William J Helm Chronometric display and control device
US3381867A (en) * 1965-10-14 1968-05-07 Mohawk Data Sciences Corp Paper feed drive system for high speed printers
US3682544A (en) * 1970-10-26 1972-08-08 Burroughs Corp Electronic controller for copying machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082263A (en) * 1975-06-30 1978-04-04 International Business Machines Corporation Document feeding apparatus
US4238160A (en) * 1978-06-02 1980-12-09 C. Itoh Electronics, Inc. Media guide
US4500023A (en) * 1981-08-20 1985-02-19 Epson Corporation Paper feeding apparatus for printers
US4526309A (en) * 1982-09-13 1985-07-02 Xerox Corporation Compatible copying of computer form documents
US6244686B1 (en) * 1999-04-23 2001-06-12 Xerox Corporation Print head drive mechanism
US6546227B2 (en) * 2001-08-17 2003-04-08 Fujitsu Limited Continuous-medium-box feeding device having a stand-by table capable of feeding a continuous-medium box on a set table
US10336565B2 (en) * 2014-05-30 2019-07-02 Hewlett-Packard Development Company, L.P. Drivers

Also Published As

Publication number Publication date
FR2185299A5 (fr) 1973-12-28
JPS4950921A (fr) 1974-05-17
DE2324121A1 (de) 1973-12-06

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AS Assignment

Owner name: WILMINGTON TRUST COMPANY A DE BANKING CORP. TRUST

Free format text: SECURITY INTEREST;ASSIGNOR:NASHUA CORPORATION A DE CORP.;REEL/FRAME:004164/0358

Effective date: 19830719

Owner name: WADE, WILLIAM J. INDIVIDUAL TRUSTEE UNDER THE TRUS

Free format text: SECURITY INTEREST;ASSIGNOR:NASHUA CORPORATION A DE CORP.;REEL/FRAME:004164/0358

Effective date: 19830719

AS Assignment

Owner name: WILMINGTON TRUST COMPANY, A DE BANKING CORP.

Free format text: AMENDMENT OF TRUST AGREEMENT AND COLLATERAL DOCUMENTS DATED FEBRUARY 15,1984 SUBJECT TO CONDITIONS RECITED;ASSIGNOR:NASHUA CORPORATION A DE CORP.;REEL/FRAME:004262/0597

Effective date: 19840215

AS Assignment

Owner name: NASHUA CORPORATION A DE CORP

Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:WILMINGTON TRUST COMPANY A DE BANKING CORP. (TRUSTEE);WADE, WILLIAM J. INDIVIDUAL TRUSTEE;REEL/FRAME:004391/0920

Effective date: 19850419