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Publication numberUS3908982 A
Publication typeGrant
Publication dateSep 30, 1975
Filing dateApr 30, 1974
Priority dateMay 10, 1973
Publication numberUS 3908982 A, US 3908982A, US-A-3908982, US3908982 A, US3908982A
InventorsMasahiro Abe
Original AssigneeGlory Kogyo Kk
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Infeed mechanism for sheet processing apparatus
US 3908982 A
Abstract
For successively feeding bills or like sheets of paper into counting or like processing apparatus, first and second takeout rollers are rotatably mounted in parallel spaced relationship adjacent both lateral edges, respectively, of the sheets supported in position on the apparatus in neat arrangement. The entire circumferential surface of the first takeout roller is capable of frictional contact with the foremost one of the sheets, whereas only a portion of the circumferential surface of the second takeout roller is capable of frictional contact with the foremost sheet. The rotations of the first and second takeout rollers are interrelated in such a manner that the first takeout roller is caused to rotate in frictional contact with the foremost sheet to shift the same toward the second takeout roller before the said circumferential portion of the constantly rotating second takeout roller moves into frictional contact with the foremost sheet. Thus, each foremost one of the sheets, initially shifted slightly toward the second takeout roller by the first takeout roller, is succeedingly fed completely into the apparatus by the second takeout roller.
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Description  (OCR text may contain errors)

States atent [1 1 51 Sept. 30, 1975 1 INFEED MECHANISM FOR SHEET [73] Assignee: Glory KogyoKabushiki Kaisha,

Japan 22 Filed: Apr. 30, 1974 211 Appl, No.2 465,668

UNITED STATES PATENTS 794,401 7/1905 Ferguson 271/23 1,947,561 2/1934 Marcalus v. 271/119 X 2,592,822 4/1952 Rapp et al. 271/23 X 2,869,869 1/1959 Bauer 271/114 3,406,627 10/1968 Becker 271/119 X Primary E.\'aminerEv0n C. Blunk Assistant E.\aminer-Bruce H. Stoner, Jr. Attorney, Agent, or FirmWenderoth, Lind & Ponack [57] ABSTRACT For successively feeding bills or like sheets of paper into counting or like processing apparatus, first and second takeout rollers are rotatably mounted in parallel spaced relationship adjacent both lateral edges, respectively, of the sheets supported in position on the apparatus in neat arrangement. The entire circumferential surface of the first takeout roller is capable of frictional contact with the foremost one of the sheets, whereas only a portion of the circumferential surface of the second takeout roller is capable of frictional contact with the foremost sheet. The rotations of the first and second takeout rollers are interrelated in such a manner that the first takeout roller is caused to rotate in frictional contact with the foremost sheet to shift the same toward the second takeout roller before the said circumferential portion of the constantly rotating second takeout roller moves into frictional contact with the foremost sheet. Thus, each foremost one of the sheets, initially shifted slightly toward the second takeout roller by the first takeout roller, is succeedingly fed completely into the apparatus by the second takeout roller.

3 Claims, 17 Drawing Figures US. Patent Sept. 30,1975 Sheet 1 of 7 3,908,982

FIG.|

US. Patent Sept. 30,1975 Sheet 2 of 7 3,908,982

FIG.2

US. Patent Sept. 30,1975 Sheet 3 of7 3,908,982

US. Patent Sept. 30,1975 Sheet 4 of 7 3,908,982

FIGA FIG.6(O)

US. Patent Sept. 30,1975 Sheet 5 of? 3,908,982

FIG.7(0) FIG.7(b)

20 2nd TAKE-OUT R RoLLER (2) o TRANSMITTING ROLLER (9) [mo BRAKE. OPERATING ROLLER (l0) 7 FIG I2 I 2 Q P Sheet 6 of 7 U8. Patant Sept. 30,1975

US. Patent Sept. 30,1975 Sheet70f7 Y 3,908,982

INFEEID MEGHANISM FOR SHEET PROCESSING APPARATUS BACKGROUND OF THE INVENTION This invention relates generally to apparatus for counting, identifying, or otherwise processing bills, bank notes, security papers, cards or like sheets of paper (hereinafter referred to simply as sheets). More specifically, the invention deals with an infeed mechanism for use with such apparatus (hereinafter referred to as sheet processing apparatus).

There are two well known types of infeed mechanism for the sheet processing apparatus under consideration, one utilizing suction exerted through a movable suction head, and the other utilizing friction exerted by one or more rollers. The suction-type infeed mechanism is disadvantageous in that it makes the overall apparatus inconveniently bulky and complex in construction because there must be incorporated therein a vacuum pump or the like and a mechanism for causing the desired motion of the suction head.

While the friction-type infeed mechanism is far simpler in configuration, it has itsown drawback in connection with its operation. In the sheet processing apparatus now under consideration, it is of absolute necessity that the sheets to be processed be fed into the apparatus one by one. Correct results of sheet processing are unobtainable in the event two or more sheets are fed simultaneously into the apparatus. Heretofore, such erroneous feeding operation has been caused more often by the friction-type infeed mechanism than by the suction-type mechanism.

SUMMARY OF THE INVENTION It is an object of this invention to provide an improved friction-tyype infeed mechanism for the above described sheet processing apparatus whereby sheets to be processed can unfailingly be fed one by one into the apparatus, so that the reliability of the apparatus is greatly enhanced.

Another object of the invention is to provide, in the sheet processing apparatus described, an infeed mechanism of extremely simple, inexpensive and compact construction which can easily be incorporated in the apparatus without any major alternaion of its existing parts.

A further object of the invention is to provide, in the sheet processing apparatus described, an infeed mechanism comprising first and second takeout rollers which operate in such an interrelated fashion that the foremost one of the sheets supported in position on the apparatus in neat arrangement is first partly separated from the rest of the sheets and is then fed completely into the apparatus.

A further object of the invention is to provide, in the sheet processing apparatus described, an infeed mechanism wherein the first takeout roller is utilized not only to partly separate the foremost sheet from the rest of the sheets but to retain the next foremost sheet in position while the first mentioned sheet is being further fed into the apparatus by the second takeout roller.

A still further object of the invention is to provide, in the sheet processing apparatus described, an infeed mechanism including brake means for forcibly arresting the rotation of the first takeout roller at the instant the foremost sheet is released thereform upon being partly separated from the rest of the sheets, so that the next foremost sheet is positively retained in positionwhile the first mentioned sheet is being further fed into the apparatus by the second takeout roller.

According to this invention, summarized in its perhaps broadest aspects, there is provided an infeed mechanism for sheet processing apparatus of the type described comprising a first takeout roller rotatably supported adjacent one edge of sheets neatly arranged in position on the apparatus for frictional contact with the foremost one thereof, and at least one second takeout roller rotatably supported adjacent the opposite edge of the sheets in parallel spaced relationship to the first takeout roller and including a circumferential portion adapted for frictional contact with the foremost sheet at prescribed time intervals. The first takeout roller is caused to rotate in frictional contact with the foremost sheet to shift the same toward the second takeout roller before the circumferential portion of the second takeout roller moves into frictional contact with the foremost sheet, so that each foremost sheet initially shifted toward the second takeout roller by the first takeout roller is thereafter fed completely into the apparatus by the circumferential portion of the second takeout roller.

The features which are believed to be novel and characteristic of this invention are set forth with particularity in the appended claims. The invention itself, however, both as to its construction and mode of operation, together with the further objects and advantages thereof, will be best understood from the following description of several preferred embodiments taken in conjunction with the accompanying drawings wherein like reference characters denote corresponding parts of the several views.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. 1 is a perspective view showing the external appearance of one example of a sheet processing apparatus incorporating the novel concepts of this invention;

FIG. 2 is a perspective view showing the same sheet processing apparatus with a part of the casing removed to reveal some of the internal construction;

FIG. 3 is a vertical sectional view of the apparatus of FIG. 1;

FIG. 4 is a side elevational view schematically illustrating an example of the infeed mechanism according to this invention;

FIG. 5 is a similar view schematically illustrating another preferred embodiment of the invention;

FIG. 6(a), 6(b) and 6(c) are similar views schematically illustrating a further preferred embodiment of the invention;

FIGS. 7(a) and 7(b) also are similar views schematically illustrating a further preferred embodiment of the invention;

FIG. 8 is a perspective view of a further, and more specific, preferred embodiment of the invention;

FIG. 9 is a side elevational view of the configuration of FIG. 8;

FIGS. 10(9) through 10(0) are views similar to FIG. 8 illustrating sequential steps in the operation of the infeed mechanism of FIG. 8;

FIG. 11 is a diagram explanatory of the relationship between the angular positions of projections on the circumferential parts of a second takeout roller, drive roller and braking roller in the infeed mechanism of FIG. 8; and

FIG. 12 is a side elevational view schematically illustrating a possible modification of the infeed mechanism accordingto the invention.

DETAILED DESCRIPTION The fundamental concepts of this invention are best embodied in the configurations of FIGS. 4 and 5. As seen in the drawings, first and second takeout rollers l and 2 are rotatably mounted in parallel spaced elationship to each other adjacent both lateral edges, respectively, of a neat arrangement of sheets P to be processed. The first takeout roller 1 is of perfectly cylindrical shape, and its entire circumferential surface is capable of frictional contact with the foremost one of the sheets P. The second takeout roller 2 is of cylindrical shape with an arcuate projection 20 arranged longitudinally on its circumference, and only this arcuate projection 2a of the second takeout roller is capable of frictional contact with the foremost one of the sheets P. The first takeout roller 1 rotates at regular time intervals, and the second takeout roller 2 rotates continuously, in the directions of the arrows indicated respectively in the drawings.

In the configuration shown in FIG. 4, the first takeout roller 1 is set in rotation before the arcuate projection 2a of the constantly rotating second takeout roller moves into contact with the foremost one of the sheets P, so that the foremost sheet becomes partly folded about its approximately central longitudinal axis and hence partly separated from the rest of the sheets. The rotation of the first takeout roller is suspended when the upper edge of the foremost sheet is released therefrom by shifting downwardly.

The configuration shown in FIG. is such that when the foremost sheet becomes partly separated from the rest of the sheets as above stated, the first takeout roller 1 is caused to move away from the sheets P as indicated by the arrow X in the drawing.

FIGS. 6(a) to 6(c) illustrate another preferred embodiment of the invention, in which a cam roller 3 is mounted coaxially with the second takeout roller 2 for simultaneous rotation therewith. The cam roller 3 carries an arcuate projection 3a on its circumference, and this projection 3a is displaced a predetermined angle from the projection 2a on the second takeout roller 2, as later described with reference to FIG. 11. The rollers 2 and 3 are held in constant rotation during the operation of the apparatus.

A transmission roller 4 is rotatably mounted between the first takeout roller 1 and the cam roller 3 for frictional contact with the circumference of the former and with the arcuate projections 3a of the latter. An idler roller 5 is further rotatably mounted under the second takeout roller 2 for frictional contact with its arcuate projection 2a.

In the operation of the arrangement shown in FIGS. 6(a) 6(a), the first takeout roller 1 is set in rotation via the transmission roller 4 as the arcuate projection 3a on the constantly rotating cam roller 3 moves into frictional contact with the roller 4, as will be seen from FIG. 6(a). The rotation of the first takeout roller 1 thus initiated is maintained as long as the transmission roller 4 is held in frictional contact with arcuate projection 3a on the cam roller 3. By the rotation of the first roller 1, the foremost one of the sheets P becomes partly folded about its approximately central longitudinal axis as its upper edge slides downwardly by friction exerted by the first takeout roller.

Successively, the arcuate projection 2a on the second takeout roller 2 moves into frictional contact with the foremost sheet partly separated from the rest of the sheets by the first takeout roller 1, thereby feeding the foremost sheet down to the idler roller 5. The arcuate projection 20 on the second takeout roller 2 and the idler roller 5 thereafter cooperate to carry the foremost sheet away from the rest of the sheets, as illustrated in FIGS. 6(b) and 6(c).

The above procedure is repeated as the arcuate projection 3a on the cam roller 3 again moves into frictional contact with the transmission roller 4 to resume the rotation of the first takeout roller 1. In this manner each foremost sheet is successively carried away from the rest of the stack. It will be apparent that the first takeout roller 1 and the transmission roller 4 are both held out of rotation while each foremost sheet is being transported by the second takeout roller 2 and the idler roller 5, and that the first takeout roller is set in rotation via the transmission roller to partly separate the next sheet from the rest of the stack when the preceding sheet has completely been carried away therefrom. Such intermittent rotation of the first takeout roller 1 is effected by the cam roller 3 in cooperation with the transmission roller 4, so that the sheets P can be unfailingly fed one by one into the sheet processing apparatus.

FIGS. 7(a) and 7(b) illustrate a slight modification of the FIG. 6(a) 6(c) embodiment, in which the cam roller 3 of the preceding embodiment is replaced by drive roller 6 of ordinary cylindrical shape which is held in continuous frictional contact with the transmission roller 4. Although the first takeout roller 1 is thus held in constant rotation, the same is not held in constant contact with the sheets P. Instead, the first takeout roller l is supported so as to be swingable about the axis of the transmission roller 4 and is held away from the sheets P while each foremost sheet is being carried away from the rest of the stack by the second takeout roller 2 and the idler roller 5.

The swinging motion of the first takeout roller 1 about the axis of the transmission roller 4 is timed with the rotation of the second takeout roller 2, in such a way that the first takeout roller retracts away from the sheets P when the arcuate projection 2a on the second takeout roller moves into frictional contact with the partly separated foremost sheet, as represented in FIG. 7(a). When this sheet is completely carried away from the rest of the sheets by the second takeout roller 2 in cooperation with the idler roller 5, the first takeout roller l is swung back into frictional contact with the next foremost sheet, as will be seen from FIG. 7(b). Such swinging motion of the first takeout roller 1 can be effected as by a crank mechanism associated with the rotation of the second takeout roller 2 and the drive roller 6.

It will be seen from the foregoing description that in all the embodiments of the invention so far disclosed, each foremost sheet is partly separated from the rest of the stack by the first takeout roller 1 before the second takeout roller 2 becomes operative to feed the sheet into the apparatus. In this manner, each foremost sheet can be fed into the apparatus with minimum frictional resistance offered by the next sheet, so that the sheets can be smoothly fed into the apparatus one by one.

FIGS. 8 to illustrate a further preferred, and more specific, embodiment of the invention in which a brake mechanism is provided to arrest the rotation of the first takeout roller 1 at the instant each foremost sheet is partly separated from the rest of the sheets and released from the first takeout roller. It is possible in this way to preclude any possibility of simultaneously feeding two successive sheet into the apparatus by the inertial rotation of the first takeout roller 1.

As best illustrated in FIG. 8, a pair of longitudinally spaced second takeout rollers 2 are fixedly mounted on a rotatable shaft 7 which is caused to rotate in the direction of the arrow in the drawing. A gate roller 8 is also fixedly mounted on the rotatable shaft 7 between the pair of takeout rollers 2. Further fixedly mounted on the rotatable shaft 7 adjacent one end thereof are a drive roller 9 and a braking roller 10. The rotation of the drive roller 9 is frictionally conveyed to the transmission roller 4 and thence to another transmission roller ll fixedly mounted on the same rotatable shaft la as the first takeout roller 1, so that the first takeout r oller is caused to rotate in the direction of the arrow in the drawing. The idler roller 5 is rotatably mounted under the second takeout roller 2 for cooperation therewith in the manner previously set forth.

As will be seen from FIGS. 8 and 9, each of the second takeout rollers 2 has the aforesaid arcuate projection 2a on its circumference, the circumferential length of which is slightly shorter than the width of each sheet to be fed into the apparatus. Typically, the arcuate projection 2a may take the form of a sheet of rubber or like material capable of frictional contact with the surface of each sheet, such sheet of rubber or the like being cemented onto the circumference of each second takeout roller 2. Thus, the projection 2a on each second takeout roller 2 first engages each foremost sheet at its leading edge 2b and feeds the sheet into the apparatus as long as the projection remains in contact with the idler roller 5.

Referring again to FIG. 8, the drive roller 9 fixedly mounted on the rotatable shaft 7 also has an arcuate projection 9a on its circumference. The leading edge of this projection 9a is disposed in the same angular position as the leading edge 2b of the projection 2a on each second takeout roller 2, and the trailing edge of the projection 9a is disposed in the angular position'such that the upper edge of each foremost sheet is released from the first takeout roller 1. The first takeout roller 1 is held in rotation only when the projection 9a on' the drive roller 9 is in frictional Contact with the transmission roller 4.

Also as best seen in FIG. 8, the aforesaid braking roller 10 fixedly mounted on the rotatable shaft 7 has an arcuate circumferential projection 10a which is completely reversed in its angular relationship with respect to the projection 9a on the driveroller 9. A follower roller 12 to be actuated by the braking roller 10 is rotatably supported on the free end of an arm 14 which is pivoted at the other end thereof on the shaft 13 rotatably supporting the transmission roller 4. A brake element which may be in the form of a roll as shown in FIGS. 8 and 9 is supported intermediate both ends of the arm 14. Hence, each time the projection 10a on the braking roller 10 moves into contact with the follower roller 12, the arm 14 turns clockwise, as viewed in FIG. 9, thereby urging the brake element 15 into contact with the first takeout roller 1 and hence preventing the same from making any inertial rotation.

, The angular relationship between the projections on the second takeout rollers 2, the drive roller 9 and the braking roller 10 will be apparent from FIG. 11. It will be apparent that the brake element 15 may not necessarily be in the form of a roll as in the drawings but may take the form of, say, a projection formed integral with the arm 14.

The aforesaid gate roller 8 rotatably mounted between the pair of second takeout rollers 2 is adapted to define a narrow gap between its circumference and the opposed edge of the bottom plate 16 on which the sheets P are mounted in neat arrangement. This gap is such that only one sheet is permitted to pass therethrough at any given time. In this particular embodiment of the invention, a sheet of rubber or the like is cemented onto the circumference of this gate roller 8 in the same angular relationship to the arcuate projections 2a on the second takeout rollers 2, as indicated at 8a in FIG. 8, so that the gate roller also takes part in frictionally carrying each foremost sheet away from the rest of the sheets P. I

As seen in FIG. 2, the aforesaid bottom member 16 is supported so as to be movable toward and away from the gate roller 8 as directed by pins 17 slidably received in their respective slots 18 and is further energized by a spring 19. Hence, by revolving an adjusting screw 20, the bottom member 16 will move relative to a stationary support 21, thereby adjustably varying the width of the gap in accordance with the thickness of each sheet to be processed.

In the embodiment of the invention illustrated in FIGS. 8 to 10, the arcuate projection 2a on each second takeout roller 2 can be made substantially equal to the other circumferential portion of the second takeout roller, with the leading edge 2b of the projection formed by slightly reducing the radius of the second takeout roller itself. It is possible in this manner to feed the lower edge of each foremost sheet into the gap between the second takeout rollers 2 and the opposed edge of the bottom member 16.

The mechanism shown in FIGS. 8 through 10 is to be incorporated in the sheet processing apparatus as illustrated in FIG. 3. The sheets P to be processed are neatly accommodated in a space 23 having the bottom member 16 and are resiliently urged toward the first and second takeout rollers l and 2 by a sloping back plate 22 fixedly supported by a movable bracket 24. A guide 25 of U-shaped cross section which is formed substantially integral with the bracket 24 is movably supported by guide rollers 27 and 28 which are assumed to be rotatably supported in their respective positions by the frame 26 of the apparatus. The guide 25 is energized in the right hand direction, as viewed in FIG. 3, by a spring 29, so that the sheets p are resiltween the idler roller and the projection 2a of the second takeout rollers 2. Another switch mechanism 33 is actuated when two sheets are fed simultaneously into the apparatus. The reference numeral 34 designates a space in which processed sheets are successively recovered by a conveyor mechanism 35 in cooperation with toothed rollers or wheels 36.

In the operation of the embodiment shown in FIGS. 8 to 10, the sheets P to be processed are accommodated in the space 23 and are urged by the sloping back plate 22 into contact at least with the first takeout roller 1. As the entire sheet processing apparatus is succeedingly set in operation to impart rotation to the shaft 7, the first takeout roller 1 is caused to rotate in the arrow marked direction before the leading edge 2b of the projection 2a on each of the second takeout rollers 2 turns into contact with the foremost sheet, because then the projection 90 on the drive roller 9 is in frictional contact with the transmission roller 4. The foremost sheet is thus slightly shifted downwardly by the first takeout roller 1, as illustrated in FIG. 10(0), and is further carried downwardly as the leading edges 2b of the projections 2a on the second takeout rollers 2 frictionally engage the sheet.

When the foremost sheet moves out of frictional contact with the first takeout roller 1, the projection 9a on the drive roller 9 moves out of frictional contact with the transmission roller 4, so that power transmission to the first takeout roller 1 is now suspended. Simultaneously, the follower roller 12 rides over the projection 10a on the braking roller 10, so that the brake element 15 carried by the arm 14 is forced into contact with the first takeout roller 1, thereby preventing its inertial rotation. The first takeout roller 1, now out of rotation as aforesaid, is thus held in frictional contact with the next sheet to retain the same in position against the motion of the first mentioned sheet shifting downward in sliding contact therewith.

The foremost sheet being thus conveyed downwardly in frictional contact with the projections 2a on the second takeout rollers 2 becomes succeedingly caught between the second takeout rollers and the idler roller and is then transported by the conveyor mechanism 35 toward the aforementioned space 34 for recovery, as will be seen from FIGS. (b) and 10(0). In the meantime, the idler roller 5 is displaced downwardly a distance corresponding to the thickness of each sheet traveling thereover, so that the sheet counting switch mechanism 32 is actuated in accordance with the prior art.

When the foremost sheet is thus completely fed into the apparatus, the projection 10a on the braking roller 10 turns out of contact with the follower roller 12, causing the arm 14 to swing counterclockwise, as viewed in FIGS. 9 and 10, so that the brake element 15 moves out of contact with the first takeout roller 1. Simultaneously, the projection 90 on the drive roller 9 comes into frictional contact with the transmission roller 4 to set the first takeout roller 1 in rotation again and hence to initiate the feeding motion of the next sheet. The foregoing procedure is thereafter repeated to feed the successive sheets P into the apparatus.

It may be noted that if the leading edge 2b of the projection 2a on each of the second takeout rollers 2 is made substantially flush with the other circumferential portion of the second takeout roller as shown in FIG. 10, each foremost sheet can be fed smoothly into the narrow spacing between the gate roller 8 and the opposed edge of the bottom member 16 without being obstructed by the second takeout rollers. Simultaneously feeding of two sheets can thus be positively prevented.

While in all the preceding embodiments of the invention the sheets P to be processed are arranged so as to stand on one of their lateral edges, it will be apparent that other arrangements are possible within the scope of this invention. For example, as illustrated in FIG. 12, the sheets P may be stacked one upon the other, with the first and second takeout rollers 1 and 2 rotatably supported over the stack of sheets. In the configuration of FIG. 12 the second takeout rollers 2 may not necessarily be provided with the arcuate projections as in the preceding examples.

It is particularly noteworthy in connection with the embodiment shown in FIGS. 8 to 10 that since the rotation of the first takeout roller 1 is forcibly arrested at the instant each foremost sheet is released therefrom by shifting toward the second takeout rollers 2, the first takeout roller is effective to frictionally retain the next sheet in position during the feeding motion of the foremost sheet. Any possibility of two sheets being fed simultaneously into the apparatus is this substantially eliminated, so that the reliability of the sheet processing apparatus equipped with the roller-type infeed mechanism according to this invention is greatly enhanced.

While the infeed mechanism for sheet processing apparatus according to this invention has been shown and described hereinbefore in terms of several preferred embodiments thereof, it is to be clearly understood that the invention itself is not to be restricted by the exact showing of the drawings or the description thereof. For example, the counting means, recovery means, and so forth of the apparatus shown in the drawings are meant only to illustrate the invention, the utility of the infeed mechanism according to the invention being not limited to this type of sheet processing apparatus. It is therefore appropriate that the invention be construed broadly.

What is claimed is:

1. In a sheet processing apparatus wherein sheets held in neat arrangement are successively fed into the apparatus for counting, identifying or like purposes, an infeed mechanism comprising:

a first takeout roller rotatably supported adjacent one edge of the neat arrangement of sheets for frictional contact with each foremost sheet thereof;

at least one second takeout roller rotatably supported adjacent the opposite edge of the neat arrangement of sheets in parallel spaced relationship to said first takeout roller and including a circumferential portion adapted for frictional contact with each foremost one of the sheets at prescribed time intervals, said second takeout roller being maintained in constant rotation during operation of the apparatus; and

drive means operatively positioned for imparting the rotation of said second takeout roller to said first takeout roller at prescribed time intervals such that each foremost one of the sheets is thereby frictionally caused to shift relative to the rest of the sheets toward said second takeout roller before said circumferential portion of said second takeout roller moves into frictional contact with the foremost sheet, the rotation of said first takeout roller being suspended when the shifted foremost sheet is released therefrom, said drive means comprising a cam roller rotatably supported in coaxial relationship to said second takeout roller for simultaneous rotation therewith and having a circumferential portion of increased radius, and a transmission roller rotatably supported between said cam roller and said first takeout roller, whereby the rotation of said second takeout roller is frictionally conveyed to said first takeout roller only when said circumferential portion of said cam roller is in contact with said transmission roller, each foremost sheet initially shifted toward said second takeout roller by said first takeout roller being then fed into the apparatus by said circumferential portion of said second takeout roller. 2. The infeed mechanism as recited in claim 1, further including brake means for forcibly arresting the rotation of said first takeout roller at the moment when the transmission of rotation to said first takeout roller by said drive means is suspended.

3. The infeed mechanism as recited in claim 2, wherein said brake means comprises a braking roller rotatably supported in coaxial relationship to said second takeout roller for simultaneous rotation therewith, said braking roller having a circumferential portion of increased radius, an arm pivotally supported between said braking roller and said first takeout roller, a follower roller rotatably mounted on the free .end of said arm and held in contact with said braking roller, and a brake element mounted intermediate between both ends of said arm, said brake element being urged into contact with said takeout roller only when said circumferential portion of said braking roller is in contact with said follower roller.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4183516 *May 18, 1977Jan 15, 1980Phillips Petroleum CompanyBlank feeding apparatus
US4494747 *Jul 1, 1983Jan 22, 1985Diebold, IncorporatedPaper currency dispenser friction picker mechanism
US5213426 *Jun 29, 1992May 25, 1993Apple Computer, Inc.Automatic printing media feed apparatus
US5222723 *Jul 22, 1991Jun 29, 1993Canon Kabushiki KaishaSheet supplying apparatus with an intermittently driven sheet separator and continously driven sheet conveyor
US5224698 *Feb 21, 1992Jul 6, 1993Kabushiki Kaisha ToshibaApparatus for feeding sheet-like object
US5687963 *May 26, 1995Nov 18, 1997Cummison-Allison Corp.Method and apparatus for discriminating and counting documents
US5815592 *Nov 14, 1994Sep 29, 1998Cummins-Allison Corp.Method and apparatus for discriminating and counting documents
US6467766 *Apr 3, 2001Oct 22, 2002Fujitsu LimitedPaper sheet feed mechanism
US6798899Jan 4, 2001Sep 28, 2004Cummins-Allison Corp.Document feeding method and apparatus
US7914216 *Oct 1, 2007Mar 29, 2011Seiko Epson CorporationPrinter and method of interrupting printing operation in continuous transport process
US20080080920 *Sep 28, 2007Apr 3, 2008Seiko Epson CorporationPrinter and method of controlling printer
US20080080923 *Oct 1, 2007Apr 3, 2008Seiko Epson CorporationPrinter and method of interrupting printing operation in continuous transport process
WO1985000348A1 *Jun 13, 1984Jan 31, 1985Diebold, IncorporatedPaper currency dispenser friction picker mechanism
Classifications
U.S. Classification271/21, 271/119, 271/114
International ClassificationG06K13/103, B65H3/06, B65H3/40
Cooperative ClassificationB65H3/0661, B65H3/0676, B65H2701/1912
European ClassificationB65H3/06N, B65H3/06L