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US3635467A - Paper feed control system - Google Patents

Paper feed control system Download PDF

Info

Publication number
US3635467A
US3635467A US885455A US3635467DA US3635467A US 3635467 A US3635467 A US 3635467A US 885455 A US885455 A US 885455A US 3635467D A US3635467D A US 3635467DA US 3635467 A US3635467 A US 3635467A
Authority
US
United States
Prior art keywords
paper
control shaft
plate
shaft
contact
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
US885455A
Other languages
English (en)
Inventor
Yugoro Kobayashi
Tsutomu Yamakami
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 US3635467A publication Critical patent/US3635467A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls

Definitions

  • ABSTRACT A paper feed control system in which a braking means holds a paper sheet or the like at the instant that follower rollers are spaced apart from a feed drive roller. The paper sheet or the like may be stopped at a predetermined position regardless of feed speed.
  • the present invention relates to a paper feed control system and more particularly to a paper feed control system for use with automatic copying machines or printing presses.
  • a sheet of paper is generally entered between a pair of feed rollers consisting of drive roller and follower rollers and is advanced by them.
  • the drive roller is generally stopped.
  • the sheets of paper or the like are stopped at different positions depending upon the speed of rotation of the drive roller.
  • the primary object of. the present invention is to eliminate such defect as described above of the conventional paper feed device.
  • the follower rollers are moved away or spaced apart from the drive roller, opposed to the conventional device in which the drive roller is stopped.
  • the sheets or the like are entered between the pair of rollers and advanced by the friction, but when the follower rollers are moved away from the drive roller, nofrictional force acts upon the sheet so that it is immediately stopped.
  • the follower rollers and a braking means are operatively coupled to a control shaft which in turn is driven by a suitable drive means, so that as soon-as the follower rollers are moved away from the drive roller by'the control shaft which is activated in responseto a feed interruption or stop signal, the braking means holds the sheet being fed.
  • the braking means is automatically released from the sheet.
  • the operation timing and retarding force of the braking means may be adjusted suitably.
  • the above-described adjustment may be effected by tightening or loosening the adjustment screws which are threaded into a baseplate having a compression spring interposed between the baseplate and the braking means.
  • the follower rollers may be angularly and adjustably positioned relative to the control shaft.
  • the paper feed is not stopped by stopping the rotation of the drive roller, so that the inertia of the drive roller will not affect the operation of stopping the sheet or the like. Only the inertia of the sheet or the like which is very small affects the operation, so that the sheet or the like may be stopped substantially at a predetermined position regardless of the feed speed. Furthermore, the distance of moving of the follower rollers toward or away from the drive roller for feeding or stopping and the distance of travel and retarding force of the braking means for interrupting or stopping the feed of the sheets are very small so that the operation of stopping or restarting the paper feed may be made within a very short time.
  • FIG. 11 is a sectional side view of one embodiment of the present invention substantially taken along the line l-I of FIG. 2;
  • FIG. 2 is a plan view thereof.
  • DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawing, in opposed relation with a drive roller 1 which rotates in the direction indicated by the arrow are disposed follower rollers the shaft3 of which is fitted into elongated slots 6 formed through the side plates 5 depending from a mounting plate 4.
  • the mounting plate 4 is securely fixed to a baseplate 8 which in turn is fitted over a control shaft 7.
  • the shaft 30f the follower rollers2 is normally biased by means of a compression spring 10 so as to bear against the lower sides of the elongated slots 6.
  • a braking member. 11 is movably carried by the control shaft 7 through depending side plates 12 ofthe braking member 11.
  • the upper rear portion 13 of the braking memberll is supported in position by means of adjustment screws 14 which are screwed to the baseplate 8 and a compression spring interposed between the upper rear portion 1l3 andthe baseplate 8. It is seen therefore that when the position of the upper rear portion 13 is adjusted by tightening or loosening the adjustment screws 14, the position of the leading end or braking end of the braking-member 11 may be varied.
  • a braking 'shoe 15 having a high coeflicient of friction is fitted over the leading end of the braking member 11.
  • Reference numeral 16 designates a sheet of paper to be supplied; and 17, guide plates between which the sheet of paper 16 is advanced.
  • the sheet of paper 16 is enteredbetween the normally rotating drive roller 1 and the follower rollers. ln thiscase, the braking shoe 15 of the braking member 11 is retracted outof the passage of the sheet 16 so that the sheet 16 may be advancedor fed by the rollers 1 and 2.
  • the control shaft 7 which is drivinglyand -electrically coupled to a paper feedcontrol unit not shown is rotated in the counterclockwise direction, so thatthe follower rollers 2 which are coupled to the control shaft 7 through the mounting plate 4 and the baseplate 8 are caused tomove upwardly and be spaced apart from the drive roller 1. This is illustrated in FIG. 1.
  • the braking member Ill has been described as being adjusted in its position by means of the adjustment screws 14, but it will be understood that the angular position of the follower rollers 2 relative to the control shaft 7 and the angular position between the braking member 11 and the follower rollers 2 may be adjusted so that the operative distances of the braking member 11 andlor the follower rollers 2 may be suitably selected.
  • a paper feed control system for use with automatic copying machines, printing presses or the like comprising a passage area through which the paper is advanced;
  • a drive roller positioned below said passage area with its upper peripheral area in contact with the bottom of the P p a follower roller drive shaft located above said passage area and having a mounting associated therewith;
  • control shaft spaced from said drive shaft and located above said passage area
  • braking means fixedly connected to said control shaft and having an end thereof adapted to contact and brake the advancement of the paper in correlation with the movement of said follower roller drive means out of contact with the paper, said braking means extending from one side of said control shaft, over said control shaft and extending on the other side of said control shaft, and said braking means having a portion spaced above said plate means portion;
  • adjustment means connecting said portions and adjustable to vertically space said end of said braking means with respect to said plate means.
  • said plate means comprises a plurality of plate elements fixed together, at least two of said plate elements extending vertically, said mounting includes slots located within said vertical plates, said drive shaft is positioned within said slots, and biasing means is provided to maintain said drive shaft at the lower end of said slot.
  • a paper feed control system in which said follower roller drive means comprises a pair of spaced rollers, and the mounting is connected therebetween.
  • a paper feed control system in which said portions are flat areas, said adjustment means comprises a compression spring positioned between said flat areas, and an adjustment screw is located in contact with said braking means to vary the compression on said spring to determine the vertical positioning of the end of said braking means.
  • a paper feed control system in which said passage area comprises spaced generally horizontal plates having openings therein for the drive roller and follower roller drive means to fit within to contact the paper, and the upper horizontal plate includes a further opening into which said end of the braking means passes to contact and brake the advancement of the paper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Registering Or Overturning Sheets (AREA)
US885455A 1968-12-25 1969-12-16 Paper feed control system Expired - Lifetime US3635467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43094553A JPS4941642B1 (fr) 1968-12-25 1968-12-25

Publications (1)

Publication Number Publication Date
US3635467A true US3635467A (en) 1972-01-18

Family

ID=14113487

Family Applications (1)

Application Number Title Priority Date Filing Date
US885455A Expired - Lifetime US3635467A (en) 1968-12-25 1969-12-16 Paper feed control system

Country Status (6)

Country Link
US (1) US3635467A (fr)
JP (1) JPS4941642B1 (fr)
CA (1) CA927415A (fr)
FR (1) FR2027092A1 (fr)
GB (1) GB1286964A (fr)
NL (1) NL6919397A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557473A (en) * 1983-12-14 1985-12-10 Ncr Canada Ltd. - Ncr Canada Ltee Sheet decelerating and stopping apparatus
EP1449671A1 (fr) 2003-02-18 2004-08-25 C.P.G. INTERNATIONAL S.p.A. Dispositif d'alimentation pour un support ou medium d'enregistrement dans un élément d'impression

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548393A (en) * 1984-01-09 1985-10-22 Pitney Bowes Inc. Inserter feeder document stop
DE3516460A1 (de) * 1985-05-08 1986-11-13 Mannesmann Kienzle GmbH, 7730 Villingen-Schwenningen Einrichtung zur voruebergehenden speicherung von belegen
DE4414445A1 (de) * 1994-04-26 1995-11-09 Heidelberger Druckmasch Ag Taktrolle zum Transport von Bogen in eine bogenverarbeitende Maschine
DE4439092C2 (de) * 1994-11-02 1998-06-10 Heidelberger Druckmasch Ag Vorrichtung zum Zuführen von Bogen
JPH10120234A (ja) * 1996-10-22 1998-05-12 Seiko Epson Corp シート搬送装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708405A (en) * 1951-08-17 1955-05-17 Miller Printing Machinery Co Printing press feed and registering mechanism
US3339917A (en) * 1964-06-10 1967-09-05 Telefunken Patent Separating device incorporating means for selectively conveying one flat article at a time from a separating zone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708405A (en) * 1951-08-17 1955-05-17 Miller Printing Machinery Co Printing press feed and registering mechanism
US3339917A (en) * 1964-06-10 1967-09-05 Telefunken Patent Separating device incorporating means for selectively conveying one flat article at a time from a separating zone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4557473A (en) * 1983-12-14 1985-12-10 Ncr Canada Ltd. - Ncr Canada Ltee Sheet decelerating and stopping apparatus
EP1449671A1 (fr) 2003-02-18 2004-08-25 C.P.G. INTERNATIONAL S.p.A. Dispositif d'alimentation pour un support ou medium d'enregistrement dans un élément d'impression

Also Published As

Publication number Publication date
DE1964629B2 (de) 1972-10-26
DE1964629A1 (de) 1970-07-16
GB1286964A (en) 1972-08-31
CA927415A (en) 1973-05-29
NL6919397A (fr) 1970-06-29
FR2027092A1 (fr) 1970-09-25
JPS4941642B1 (fr) 1974-11-11

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