US3563537A - Sheet stack feed device with shiftable throat restrictor - Google Patents

Sheet stack feed device with shiftable throat restrictor Download PDF

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Publication number
US3563537A
US3563537A US767310A US3563537DA US3563537A US 3563537 A US3563537 A US 3563537A US 767310 A US767310 A US 767310A US 3563537D A US3563537D A US 3563537DA US 3563537 A US3563537 A US 3563537A
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United States
Prior art keywords
restricting member
hopper
restricting
sheet
feed device
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Expired - Lifetime
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US767310A
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English (en)
Inventor
Paul John Thut
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.)
Unisys Corp
Standard Register Co
Original Assignee
Burroughs Corp
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Assigned to BURROUGHS CORPORATION reassignment BURROUGHS CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). DELAWARE EFFECTIVE MAY 30, 1982. Assignors: BURROUGHS CORPORATION A CORP OF MI (MERGED INTO), BURROUGHS DELAWARE INCORPORATED A DE CORP. (CHANGED TO)
Assigned to STANDARD REGISTER COMPANY THE reassignment STANDARD REGISTER COMPANY THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BURROUGHS CORPORATION A CORP. OF DE.
Anticipated expiration legal-status Critical
Assigned to BANK OF AMERICA, N.A. reassignment BANK OF AMERICA, N.A. NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Assignors: THE STANDARD REGISTER COMPANY
Assigned to THE STANDARD REGISTER COMPANY reassignment THE STANDARD REGISTER COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A.
Assigned to THE STANDARD REGISTER COMPANY reassignment THE STANDARD REGISTER COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Assigned to THE STANDARD REGISTER COMPANY reassignment THE STANDARD REGISTER COMPANY RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/08—Feeding or discharging cards
    • G06K13/10—Feeding or discharging cards from magazine to conveying arrangement

Definitions

  • a body mounted on which there is an adjustment member operable to establish a set restriction with the the, corresponding to a given card thickness. Also mounted on the body is a shifter member by means of which the positionable member may be readily shifted to change the restriction to one for accommodating cards of other thick- IICSSCS.
  • the invention resides in the provision of an improved stack feeding device wherein the improvement is a shiftable sheet restriction member to readily change the restriction to one of a number of different size restrictions.
  • the first proposal has the disadvantage of limiting the feed device application to documents of only one thickness.
  • the second proposal provides for the use of documents of different thicknesses in the feed device, but has the disadvantage of requiring a time-consuming adjustment involving a precise measurement of the throat aperture each time documents of a different thickness are to be fed. 7
  • FIG. 1 is a fragmentary side view, partly in section, of a sheet feed device embodying features of the invention
  • FIG. 2 is a fragmentary elevational view, taken in the direction of the arrows 2-2 of FIG. 1
  • FIG. 3 is a sectional view, taken along the line and in the direction of the arrows 3-3 of FIG. 2;
  • FIG. 4 is an enlarged fragmentary sectional view similar to FIG. 3;
  • FIG. 5 is a perspective and partiallyexploded view
  • FIG. 6 is a side view.
  • the sheet feed device includes a supporting means 12, a sheet hopper 14, a sheet feed roller 16, and a shiftable sheet restricting member s designated generally by the numeral 18.
  • the hopper 14, the feed roller 16, and the restricting member 18 are mounted on a pair of upright plates 20, of which only one is shown, of the supporting means 12.
  • the restricting member 18 is disposed adjacent the feed roller 16, and both are effectively positioned below the hopper 14, as shown in FIG. I.
  • a horizontal driven shaft 22 is journaled on the upright plates 20 and may be driven by any suitable electric motor.
  • the shaft 22 has affixed thereon the feed roller 16 which is provided with a resilient tire 23.
  • the hopper 14 includes a first inclined plate 24 which is mounted on the upright plates -20,'the lower edge of the plate 24 having a clearance opening 25 to receive the periphery of the feed roller 16.
  • a second inclined plate 26 is mounted on the upright plates 20 to form, with the first inclined plate 24, the hopper 14 which, as shown in FIG. 1, is V-shaped having a downwardly directed apex.
  • a second driven shaft 27, below and parallel to the driven shaft 22, has affixed thereon a feed roller 28 which cooperates with a pressure roller 29 to transport sheets fed from the hopper.
  • the pressure roller 29 is mounted on a lever 30 and a tension spring 31 urges the pressure roller against the feed roller 28.
  • a third inclined plate 32 is mounted on the upright plates 20 below the second inclined plate 26, its lower length extending below the feed roller 16 and adjacent to the bight of the drive roller 28 and the pressure roller 29.
  • the restricting member If is in the form of a bar having a beveled end 19 disposed toward and located adjacent the periphery of roller 16 to form a sheet restriction passage therebetween.
  • Screw-threaded into the other end of the bar 18 is one end of a rod 38 which has a knob 40 for conveniently rotating the rod.
  • the rod 38 Adjacent the knob 40, the rod 38 has an annular flange 41 at the upper end of the mount 33 and overlying the flange there is a retainer plate 43 which is secured to the mount by screws 44 for normally hold ing the rod against accidental rotation.
  • a stationary base or bracket 45 is mounted on the second inclined plate 26, and the mount 33 is supported and slidably guided therebetween.
  • the restricting member 18 is normally secured to the mount 33 by a screw 34 for movement together, clearance being provided in the bracket 45 by an aperture 46.
  • Screws 47 are screw-threaded into the bracket 42 and the heads of these screws overlap the mount 33 to retain the latter in the channel-shaped bracket, as shown in FIG. 5.
  • An adjustment or shifter member 48 is provided to shift the sheet restricting member 18 to a selected one of a number of positions representative of different sheet thicknesses and is rotatably mounted in a boss 49 provided on the underside of the bracket 45.
  • the shifter member 48 has a cylindrical body 50 is rotatably received in a bore 51 in the boss 49 which bore extends at right angles to and beneath the restricting member 18.
  • the cylindrical body 50 of the shifter member 48 is provided with a number of lands or flat cam portions 52, 53 and 54. These flat portions are formed on and circumferentially positioned about the periphery of the cylindrical body 50.
  • chords of the flat portions 52, 53 and 54 increase successively from the portion 52 having the shortest chord and the portion 54 having the longest chord, thus providing a series of steps.
  • a depending stud 56 secured to the restricting member 18 extends laterally of and adjacent the flat portions 52, 53 and 54 such that by rotating the shifter member 48 the restricting member 18 may be shifted to any one of a number of positions with respect to the sheet feed wheel 16.
  • the flat portions 52, 53 and 54 are representative respectively of different thicknesses of sheets which may be used in the stacker.
  • a coil spring 57 urges the restricting member 18 leftward as viewed in FIGS. 3 and 4 and thus yieldably urges the stud 56 against a selected one of the flat portions 52, 53 and 54.
  • One end of the spring 57 abuts an extension 58 of a bracket which is secured to the mount 33 by screws 58'.
  • the detent comprises a hexagon-shaped member 60 affixed to the shaft of the shifter member 48 and a pawl 61. As shown in FIG. 6, the pawl 61 is held against one of the flat hexagonal faces of the member 60 by a coil spring 62.
  • sheets or documents 64 are loaded into the V-shaped hopper 14 formed by the first inclined plate 24 and the second inclined plate 26, the documents 64 oriented to lie parallel to the first inclined plate 24.
  • the lowermost document 66 will, by force of gravity, assume a position immediately adjacent to the first inclined plate 24 such that the lower edge of the document is adjacent to the periphery of the feed roller 28.
  • the feed roller 16 is driven in a counterclockwise direction as viewed in FIG. 1.
  • the frictional force the feed roller tire 23 exerts on the documents 73 will drive it downward through the restriction 68 formed between the feed roller 16 and the restricting edge 19.
  • the restricting member 18 is adjusted relative to the feed roller 16 such that only one document can pass therebetween.
  • the document 66 still being driven by the feed roller 16, is deflected by the lower curved portion 70 of the second inclined plate 26 and the third inclined plate 32 toward the drive roller 28, which drives it from the feeder,
  • the document 64 immediately adjacent to the previously fed document 66 will then, by force of gravity, assume the position, previously vacated by the document 66, adjacent to the first inclined plate 24, with the lower edge of the document adjacent'to the feed roller 16.
  • a single document 72 may be fed directly by inserting it along the the upper surface of the third inclined plate 32 as illustrated in FIG. 1.
  • Thedocument 78 will travel downward, under the force of gravity, untilits lower edge reaches the drive roller 28, which will drive the document 72 from the feeder.
  • the restricting member 18 and its mount 33 are depicted in their maximum extended position with respect to the bracket 45, which means that the shifter member flat portion 52 is against the stud 56. This will provide the smallest feeder throat clearance desired.
  • the stud 56 secured to the mount As shown, the stud 56 secured to the mount 33 is yieldably biased against the periphery of the camshaft 48 by the action of the spring 57 acting in longitudinal opposition between the bracket 45 and a projection 58 secured to the mount 33.
  • the shifter member 48 is rotated clockwise until the next flat portion 53 is adjacent to the stud 56. Since the flat portion 53 is closer to the axis of rotation of the cylinder of shifter member 48 than is the periphery thereof, the mount 33 and the restricting member 18 secured'thereon will, by virtue of the force exerted by the spring 62 on the projection 58 fixedly attached to the mount 33, retract with respect to the bracket 45. This setting will provide the second-smallest feeder throat clearance desired. Any subsequently desired settings may be established by rotating the shifter member 48 progressively clockwise so that successive flat portions, each a selectively predetermined distance from the axis of rotation of the shifter member 48, will be positioned adjacent to the stud 56.
  • the maximum feeder throat clearance is obtained when the shifter member 48 is rotated until the cam surface presented to the stud 56 is the surface which is the minimum distance from the axis of rotation of the shifter member 48. This condition is depicted in FIG. 4.
  • each setting of the restricting member 18 is maintained by the pawl 61 yieldably biased against a flat surface of the member 60 by the spring 62.
  • an initial setting of the feeder throat clearance is accomplished by rotating the shifter member 48 counterclockwise until its cylindrical periphery is presented to the stud 56.
  • the rod 38 is rotated, thus longitudinally shifting the restricting member 18 with respect to the mount 33 by virtue of the opposite end of the adjusting shaft 38 being threaded into the restricting member 18.
  • a clockwise rotation of the rod 38 will retract the restricting member 18 with respect to the mount 33, thus increasing the feeder throat clearance.
  • a counterclockwise rotation of the rod 38 will produce the opposite result.
  • the rod 38 is rotated until the feeder throat clearance corresponding to the thickness of the thinnest document to be fed, plus any necessary tolerance, is obtained.
  • the screws for the retainer plate 44 and screw 34 are then tightened to preserve the setting.
  • a sheet feed device comprising a hopper having a downwardly directed opening, a sheet feed roller external of said hopper at the downwardly directed opening, a movably mounted sheet restricting member cooperable with the periphery of said roller to form a passage restricting the feeding of sheets singly therethrough, said restricting member being differentially positionable toward and away from the periphery of said roller, and a rotatable cam operatively connected to said sheet restricting member to shift the latter and having a number of lands spaced about the cam periphery at different radial distances from the axis of rotation of said cam correspondin to different thicknesses of sheets.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US767310A 1968-10-14 1968-10-14 Sheet stack feed device with shiftable throat restrictor Expired - Lifetime US3563537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76731068A 1968-10-14 1968-10-14

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US3563537A true US3563537A (en) 1971-02-16

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ID=25079101

Family Applications (1)

Application Number Title Priority Date Filing Date
US767310A Expired - Lifetime US3563537A (en) 1968-10-14 1968-10-14 Sheet stack feed device with shiftable throat restrictor

Country Status (4)

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US (1) US3563537A (enrdf_load_stackoverflow)
BE (1) BE740165A (enrdf_load_stackoverflow)
FR (1) FR2020623A1 (enrdf_load_stackoverflow)
GB (1) GB1225883A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986712A (en) * 1975-01-02 1976-10-19 Kaiichi Hasegawa Feeding device for card counting machines
DE3112668A1 (de) * 1981-03-31 1982-10-14 Feinwerktechnik Schleicher & Co, 7778 Markdorf Geraet zum vereinzeln von in einem stapel liegenden mikrofilm-karten
US4717140A (en) * 1986-06-02 1988-01-05 R. R. Donnelley & Sons Company Stream feeder apparatus for printed sheets
US4982942A (en) * 1988-06-08 1991-01-08 Oki Electric Industry Co., Ltd. Sheet feed mechanism
US5401013A (en) * 1993-09-16 1995-03-28 Bryce Office Systems, Inc. Addressing machine feed gap setting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51143268A (en) * 1975-06-04 1976-12-09 Toshiba Corp Automatic paper feed apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515986A (en) * 1921-01-03 1924-11-18 American Shoe Machinery Compan Automatic feeding apparatus
US2726862A (en) * 1952-03-20 1955-12-13 Elliott Addressing Machine Co Sheet feeding apparatus
US2755910A (en) * 1953-01-05 1956-07-24 Modern Village Stores Inc Conveyor system for check stands

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515986A (en) * 1921-01-03 1924-11-18 American Shoe Machinery Compan Automatic feeding apparatus
US2726862A (en) * 1952-03-20 1955-12-13 Elliott Addressing Machine Co Sheet feeding apparatus
US2755910A (en) * 1953-01-05 1956-07-24 Modern Village Stores Inc Conveyor system for check stands

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986712A (en) * 1975-01-02 1976-10-19 Kaiichi Hasegawa Feeding device for card counting machines
DE3112668A1 (de) * 1981-03-31 1982-10-14 Feinwerktechnik Schleicher & Co, 7778 Markdorf Geraet zum vereinzeln von in einem stapel liegenden mikrofilm-karten
US4717140A (en) * 1986-06-02 1988-01-05 R. R. Donnelley & Sons Company Stream feeder apparatus for printed sheets
US4982942A (en) * 1988-06-08 1991-01-08 Oki Electric Industry Co., Ltd. Sheet feed mechanism
US5401013A (en) * 1993-09-16 1995-03-28 Bryce Office Systems, Inc. Addressing machine feed gap setting

Also Published As

Publication number Publication date
FR2020623A1 (enrdf_load_stackoverflow) 1970-07-17
GB1225883A (enrdf_load_stackoverflow) 1971-03-24
BE740165A (enrdf_load_stackoverflow) 1970-03-16

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Owner name: BURROUGHS CORPORATION

Free format text: MERGER;ASSIGNORS:BURROUGHS CORPORATION A CORP OF MI (MERGED INTO);BURROUGHS DELAWARE INCORPORATED A DE CORP. (CHANGED TO);REEL/FRAME:004312/0324

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