US3869116A - Decreasing load deflection mechanism - Google Patents

Decreasing load deflection mechanism Download PDF

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Publication number
US3869116A
US3869116A US411591A US41159173A US3869116A US 3869116 A US3869116 A US 3869116A US 411591 A US411591 A US 411591A US 41159173 A US41159173 A US 41159173A US 3869116 A US3869116 A US 3869116A
Authority
US
United States
Prior art keywords
cards
card
hopper
steel blade
stack
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
US411591A
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English (en)
Inventor
Elmer Leroy Bob Kroeker
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to US411591A priority Critical patent/US3869116A/en
Priority to FR7428152A priority patent/FR2250158B1/fr
Priority to DE19742442542 priority patent/DE2442542C3/de
Priority to CH1234974A priority patent/CH573631A5/xx
Priority to BE148403A priority patent/BE819780A/xx
Priority to CA209,651A priority patent/CA1016205A/en
Priority to GB4164674A priority patent/GB1469249A/en
Priority to IT27861/74A priority patent/IT1022434B/it
Priority to JP49113968A priority patent/JPS5073373A/ja
Priority to ES431062A priority patent/ES431062A1/es
Priority to NL7413579A priority patent/NL7413579A/xx
Priority to SE7413609A priority patent/SE397593B/sv
Priority to SU7402072688A priority patent/SU581857A3/ru
Application granted granted Critical
Publication of US3869116A publication Critical patent/US3869116A/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
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B65H1/06—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile for separation from bottom of pile
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S271/00—Sheet feeding or delivering
    • Y10S271/901—Magnetic operation

Definitions

  • a loading mechanism for providing an initial load on a magnetic card in a card hopper such that when the magnetic card is brought into contact with a feed roller, the card is fed from the card hopper.
  • This mechanism includes a flat permanent magnetic strip mounted on the frame of the card hopper and a steel blade having one end pivotably mounted on the frame. The steel blade is magnetically attracted to the magnetic strip. The other end of the steel blade is attached to a pressure plate resting on the top card in the hopper. When a given number of cards are in the hopper, the steel blade is completely out of contact with the magnetic strip.
  • the only weight applied to the drive roller is the weight of the cards plus the weight of the pressure plate.
  • the steel blade is lowered into contact with the magnetic strip. The initial contact is adjacent the blade pivot point.
  • the contact area of the blade and spring increases incrementally in a rolling type manner such that the combination of the permanent magnet, steel blade, and pressure plate imparts an increasing downward pressure on the stack of cards to thereby off set the weight decrease resulting from the feeding of cards to provide a fairly uniform weight on the card drive roller which varies within acceptable limits such that reliable card feeding of all the cards in the hopper is accomplished.
  • IBM Mag Card II there is included a hopper which can hold from one to fifty cards. These cards are fed by activating a feed magnet which allows the bottom card in the hopper to come in contact with a constantly rotating drive roller to feed the card into a read/write station. To assure proper feeding of the last card in the hopper, the IBM Mag Card II had an initial loading of ten ounces. This initial loading was used since it was found that in controlled environments, the normal force to cause reliable card feeding is 8 ounces. This initial loading was by means of an extension spring which was connected to the frame of the hopper and to a pressure plate resting on the card stack.
  • this extension spring applied more and more force to the pressure plate with a consequent increase in force on the drive roller.
  • This number was approximately 50. That is, the load on the drive roller increased as a function of the loading spring rate plus the increasing card weight. Thus, the maximum number of cards which could be accommodated was 50.
  • mag Card II Another problem presented with respect to the Mag Card II system is that the initial loading was only ten ounces. Ideally, to assure better feeding of the cards, the normal force on the drive roller, to accommodate a wide range of environmental conditions, should be greater and should be around 14 ounces. With the Mag Card II system however, the addition of the 4 ounces for initial loading would result in too much force being applied to the drive roller when the hopper was full. Thus, the initial loading was less than desirable for reliable feeding under certain conditions.
  • a loading mechanism for providing an initial load on a magnetic card in a card hopper such that when the magnetic card is brought into contact with a feed roller, the card is fed from the card hopper.
  • This mechanism includes a flat permanent magnetic strip mounted on the frame of the card hopper and a steel blade having one end pivotably mounted on the frame. The steel blade is magnetically attracted to the magnetic strip. The other end of the steel blade is attached to a pressure plate resting on the top card in the hopper. When a given number of cards are in the hopper, the steel blade is completely out of contact with the magnetic strip. At this time, the only weight applied to the drive roller is the weight of the cards plus the weight of the pressure plate.
  • the steel blade As cards are fed from the hopper, the steel blade is lowered into contact with the magnetic strip. The initial contact is adjacent the blade pivot point. As additional cards are fed, the contact area of the blade and spring increases incrementally in-a rolling type manner such that the combination of the permanent magnet, steel blade, and pressure plate imparts an increasing downward pressure on the stack of cards to thereby off set the weight decrease resulting from the feeding of cards to provide a fairly uniform weight on the card drive roller which varies within acceptable limits such that reliable card feeding of all of the cards in the hopper is accomplished.
  • FIG. 1 is a cut-away side view of the subject inverse spring loading mechanism with a small number of cards in the hopper which results in the magnetic strip and steel blade being in contact substantially along its entire length;
  • FIG. 2 is a cut-away side view of the mechanism of FIG. 1 with a larger number of cards in the hopper to illustrate the pulling away of the blade from the magnet;
  • FIG. 3 is a partial side view of the mechanism of FIG. 1 with the hopper fully loaded illustrating the complete separation of the steel blade from the permanent magnet;
  • FIG. 4 is a plot of curves representing the force applied at the feed roll verses thenumber of cards with the total force being broken down into card weight at the feed roll; blade; permanent magnet and pressure plate load.
  • FIG. 1 the numeral 1 designates the frame of the hopper.
  • the frame is cut-away and is represented at various points by slashes as indicated at 1.
  • the frame in the other figures is also represented in a similar manner.
  • FIG. 1 there is shown a stack of cards 2 which are resting at their right most extremity on a first section 23 of a base plate and are held above the second section 3 of the base plate by means of a card lift roller 9.
  • Card lift roller 9 is rotatably mounted on shaft 8 which is supported at its left most extremity by the frame and hearing mount 11 mounted thereon.
  • T-shaped member 7 is rotatably connected to bearing mount 11 by means of shaft 10.
  • T-shaped member 7 is rotatable around member 7.
  • the other end of shaft 10 includes a slot 17 to which is connected to one end 18 of card lift spring 19 which has its other end 21 wrapped over a pin 20 which is an extension of mounting 22 which is connected to the frame of the card hopper.
  • T-shaped member 7 Also connected to T-shaped member 7 is an actuator 12 by means of shaft 13. Again, this is a pivotable connection. Connected to actuator 12 is an armature 14 which upon application of a potential to winding 16 wrapped on core will cause application of force to T-shaped member 7 to overcome the spring force of card lift spring 19 to thus allow the bottom card in the hopper to drop onto drive roller 4 which is constantly rotating in the direction indicated by the arrow associated therewith.
  • This constantly rotating drive roller is driven by motor means and suitable gearing (not shown).
  • When a card drops onto the drive roller it is driven by the drive roller out through opening 25 which is formed by means of a gate member 24 which is attached to the frame of the card feed mechanism.
  • Other drive means (not shown) then drive the card into a read/write area (again not shown).
  • Pressure plate 26 Resting on top of the cards is a pressure plate 26.
  • Pressure plate 26 includes a handle 27 which is utilized by the operator to lift up the pressure plate for insertion of cards.
  • Pressure plate 26 also includes a roller 28 mounted thereto bymeans of shaft 29 for rolling movement across the top card.
  • T-shaped member 31 Also attached to pressure plate 26 is T-shaped member 31 having an extension 31a pivotably connected to pressure plate 26 by means of shaft 30.
  • the T-shaped member 31 is pivotably connected to the frame of the card hopper by means of bearing mount 34 and pin 35 mounted in bearing mount 34.
  • T-shaped member 31 is rotatable around shaft 35.
  • Attached to T-shaped member 31, also at shaft 35, is a steel blade 32 having its other extremity attached to the T-shaped member 31 at point 36.
  • Point 36 can either be a slot or can include a protrusion on which steel blade 32 applies pressure.
  • a permanent magnet strip 33 which attracts steel blade 32. As shown in FIG. 1, the blade is almost in complete contact with the magnet 33 and due to its flexure is applying an initial force of approximately 14 ounces.
  • FIG. 2 Shown in FIG. 2 is a larger number of cards and this illustrates the peeling away of blade 32 from magnet 33.
  • the system can be ini tially loaded such that with a single card in the hopper, 14 ounces is applied which will assure proper feeding in most environmental conditions and the loading applied to the cards by the blade-magnet combination, assuming a full load of cards in the hopper, increases from zero to a maximum of 14 ounces as the cards are fed from the hopper.
  • This type of arrangement assures a fairly uniform force being applied to the drive roller which results in, as compared to an arrangement where an extension spring is utilized in reduced friction between the cards; lower electrical power requirements for the feed magnet; lower pressure plate forces which assists the operator in inserting additional cards into the hopper; a smaller band or range of loading forces which is desirable for adverse environmental conditions; fewer variables in the loading forces as the card number increases or decreases; greater manufacturing tolerances on the associated parts; and low cost materials.
  • FIG. 4 there is shown a plot of the normal force applied to the feed roller verses number of cards. It will be seen from FIG. 4 that the initial force applied where there are no cards in the hopper is approximately 14 ounces. This force is totally from the pressure plate load plus the force applied by the blade and permanent magnetic strip. As cards are added, it can be seen that the blade and permanent magnet as they are peeled apart, result in less force being applied by them while the card weight goes up. As shown in the drawing of FIG. 4, at approximately cards with this type of arrangement, the blade and permanent magnet totally separate and the force applied to the stack of cards is solely that of the pressure plate weight. From a further consideration of FIG.
  • the steel blade was spring steel 0.016 of an inch thick, 8 inches in length, and /2 inch in width.
  • the magnetic material was PLAS- TIFORM 1-H and was 0.125 inch in thickness and /5 inch in width and of a length substantially equal to that of the steel blade, but varying slightly as illustrated in the drawing.
  • the drive roller in the IBM Mag Card II is made of vibrathane B-605, while the magnetic cards are standard magnetic cards. Their make-up is described in US. Pat. No. 3,617,378.
  • a loading mechanism for providing an initial load on a magnetic card 2 in a card hopper such that when the magnetic card is brought into contact with a feed roller 4, the card is fed from the card hopper.
  • This mechanism includes a flat permanent magnetic strip 33 mounted on the frame 1 of the card hopper and a steel blade 32 having one end pivotably mounted on the frame. The steel blade is magnetically attracted to the magnetic strip. The other end of the steel blade is attached to a pressure plate 26 resting on the top card in the hopper. When a given number of cards are in the hopper, the steel blade is completely out of contact with the magnetic strip. At this time, the only weight applied to the drive roller is the weight of the cards plus the weight of the pressure plate.
  • the steel blade As cards are fed from the hopper, the steel blade is lowered into contact with the magnetic strip. The initial contact is adjacent the blade pivot point. As additional cards are fed, the contact area of the blade and spring increases incrementally in a rolling type manner such that the combination of the permanent magnet, steel blade, and pressure plate imparts an increasing downward pressure on the stack of cards to thereby off set the weight decrease resulting from the feeding of cards to provide a fairly uniform weight on the card drive roller which varies within acceptable limits such that reliable card feeding of all of the cards in the hopper is accomplished.
  • means connected to said pressure plate for applying said increasing force including means for producing a magnetic field, with said connected means being forcewise attracted to said means for producing said magnetic field in varying amounts as said cards are fed.
  • a card feed mechanism for applying a substantially uniform force to a card in contact with a card feed roller comprising:
  • a card hopper having therein a stack of cards, a pres sure plate applying a varying force to the card in said stack most remote from said card feed roller, and
  • means connected to said pressure plate for applying said varying force including means for producing a magnetic field with said connected means being force wise attracted to said means for producing said magnetic field in increasing amounts as cards are fed from stack by said card feed roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Conveying Record Carriers (AREA)
US411591A 1973-10-31 1973-10-31 Decreasing load deflection mechanism Expired - Lifetime US3869116A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US411591A US3869116A (en) 1973-10-31 1973-10-31 Decreasing load deflection mechanism
FR7428152A FR2250158B1 (sv) 1973-10-31 1974-08-08
DE19742442542 DE2442542C3 (de) 1973-10-31 1974-09-05 Magazin für einen Stapel flacher Gegenstände, insbesondere Aufzeichnungsträger
CH1234974A CH573631A5 (sv) 1973-10-31 1974-09-11
BE148403A BE819780A (fr) 1973-10-31 1974-09-11 Mecanisme de charge pour magasin d'alimentation de cartes
CA209,651A CA1016205A (en) 1973-10-31 1974-09-19 Decreasing load deflection mechanism
GB4164674A GB1469249A (en) 1973-10-31 1974-09-25 Sheet stack loading mechanism
IT27861/74A IT1022434B (it) 1973-10-31 1974-09-30 Meccanismo per l alimentazione di schede magnetiche
JP49113968A JPS5073373A (sv) 1973-10-31 1974-10-04
ES431062A ES431062A1 (es) 1973-10-31 1974-10-16 Un dispositivo de tolva para una pila de objetos planos.
NL7413579A NL7413579A (nl) 1973-10-31 1974-10-16 Aandrukmechanisme voor een stapel registratie- kaarten in een kaarteninvoermagazijn.
SE7413609A SE397593B (sv) 1973-10-31 1974-10-29 Mekanism for anbringande av en varierbar belastning pa ett foremal, ner foremalet ut- eller inmatas i en stapel
SU7402072688A SU581857A3 (ru) 1973-10-31 1974-10-30 Устройство дл разбора стопы плоских предметов

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US411591A US3869116A (en) 1973-10-31 1973-10-31 Decreasing load deflection mechanism

Publications (1)

Publication Number Publication Date
US3869116A true US3869116A (en) 1975-03-04

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ID=23629543

Family Applications (1)

Application Number Title Priority Date Filing Date
US411591A Expired - Lifetime US3869116A (en) 1973-10-31 1973-10-31 Decreasing load deflection mechanism

Country Status (12)

Country Link
US (1) US3869116A (sv)
JP (1) JPS5073373A (sv)
BE (1) BE819780A (sv)
CA (1) CA1016205A (sv)
CH (1) CH573631A5 (sv)
ES (1) ES431062A1 (sv)
FR (1) FR2250158B1 (sv)
GB (1) GB1469249A (sv)
IT (1) IT1022434B (sv)
NL (1) NL7413579A (sv)
SE (1) SE397593B (sv)
SU (1) SU581857A3 (sv)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305577A (en) * 1979-08-03 1981-12-15 International Business Machines Corporation Apparatus for applying, varying and removing a normal force in a shingler wheel type document feeder
US4395033A (en) * 1981-03-13 1983-07-26 International Business Machines Corporation Shingling with controlled force and/or velocity
US4458890A (en) * 1981-03-20 1984-07-10 Olympus Optical Company Limited Apparatus for automatically feeding sheets
EP0482280A1 (de) * 1990-10-22 1992-04-29 Siemens-Elema AB Blattfilmmagazin für einen Filmwechsler
EP0502225A1 (de) * 1991-03-05 1992-09-09 Siemens-Elema AB Blattfilmmagazin für einen Filmwechsler
US5230503A (en) * 1988-10-31 1993-07-27 Canon Kabushiki Kaisha Sheet feeding apparatus with adjustable urging members
US5249789A (en) * 1990-10-22 1993-10-05 Siemens Aktiengesellschaft Sheet film magazine for a film changer
US5951002A (en) * 1995-03-07 1999-09-14 Canon Kabushiki Kaisha Sheet supplying apparatus with weight detection feature
US6227538B1 (en) 1999-04-19 2001-05-08 Gbr Systems Corporation Paper tamping mechanism
US6257571B1 (en) 1999-10-28 2001-07-10 Gbr Systems Corporation Edge tamping mechanism
US6644648B1 (en) * 2002-01-25 2003-11-11 Bell & Howell Imaging Components, L.L.C. Feeder for microfilm jacket printer
US20090189335A1 (en) * 2008-01-30 2009-07-30 Neopost Technologies Device for optimally selecting mailpieces
EP2125383A1 (en) * 2007-03-08 2009-12-02 Fargo Electronics, Inc. Card holder for a credential production device
US20110049788A1 (en) * 2008-01-18 2011-03-03 Toshihiko Suzuki Paper sheet handling machine
EP2899700A4 (en) * 2012-09-21 2015-10-28 Grg Banking Equipment Co Ltd FINANCIAL EQUIPMENT FOR SERVICE AND APPARATUS AND METHOD FOR SEPARATING CORRESPONDING BANKNOTES

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US899133A (en) * 1908-03-23 1908-09-22 Jacob F Lang Sheet-feeding mechanism.
US1448705A (en) * 1921-06-16 1923-03-13 American Multigraph Co Means for feeding address plates
US1478464A (en) * 1921-01-05 1923-12-25 Edward T Waters Automatic sheet separating and feeding mechanism
US2938721A (en) * 1957-03-15 1960-05-31 Western Union Telegraph Co Copy sheet storage and feed mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US899133A (en) * 1908-03-23 1908-09-22 Jacob F Lang Sheet-feeding mechanism.
US1478464A (en) * 1921-01-05 1923-12-25 Edward T Waters Automatic sheet separating and feeding mechanism
US1448705A (en) * 1921-06-16 1923-03-13 American Multigraph Co Means for feeding address plates
US2938721A (en) * 1957-03-15 1960-05-31 Western Union Telegraph Co Copy sheet storage and feed mechanism

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305577A (en) * 1979-08-03 1981-12-15 International Business Machines Corporation Apparatus for applying, varying and removing a normal force in a shingler wheel type document feeder
US4395033A (en) * 1981-03-13 1983-07-26 International Business Machines Corporation Shingling with controlled force and/or velocity
US4458890A (en) * 1981-03-20 1984-07-10 Olympus Optical Company Limited Apparatus for automatically feeding sheets
US5230503A (en) * 1988-10-31 1993-07-27 Canon Kabushiki Kaisha Sheet feeding apparatus with adjustable urging members
EP0482280A1 (de) * 1990-10-22 1992-04-29 Siemens-Elema AB Blattfilmmagazin für einen Filmwechsler
US5249789A (en) * 1990-10-22 1993-10-05 Siemens Aktiengesellschaft Sheet film magazine for a film changer
EP0502225A1 (de) * 1991-03-05 1992-09-09 Siemens-Elema AB Blattfilmmagazin für einen Filmwechsler
US5201510A (en) * 1991-03-05 1993-04-13 Siemens Aktiengesellschaft Sheet film magazine for a film changer
US5951002A (en) * 1995-03-07 1999-09-14 Canon Kabushiki Kaisha Sheet supplying apparatus with weight detection feature
US6227538B1 (en) 1999-04-19 2001-05-08 Gbr Systems Corporation Paper tamping mechanism
US6257571B1 (en) 1999-10-28 2001-07-10 Gbr Systems Corporation Edge tamping mechanism
US6644648B1 (en) * 2002-01-25 2003-11-11 Bell & Howell Imaging Components, L.L.C. Feeder for microfilm jacket printer
EP2125383A1 (en) * 2007-03-08 2009-12-02 Fargo Electronics, Inc. Card holder for a credential production device
EP2125383A4 (en) * 2007-03-08 2011-04-06 Hid Global Corp CARD HOLDER FOR A DEVICE FOR PRODUCING IDENTITY PARTS
US20110049788A1 (en) * 2008-01-18 2011-03-03 Toshihiko Suzuki Paper sheet handling machine
US8708327B2 (en) * 2008-01-18 2014-04-29 Glory Ltd. Paper sheet handling machine
US20090189335A1 (en) * 2008-01-30 2009-07-30 Neopost Technologies Device for optimally selecting mailpieces
US7815185B2 (en) * 2008-01-30 2010-10-19 Neopost Technologies Device for optimally selecting mailpieces
EP2899700A4 (en) * 2012-09-21 2015-10-28 Grg Banking Equipment Co Ltd FINANCIAL EQUIPMENT FOR SERVICE AND APPARATUS AND METHOD FOR SEPARATING CORRESPONDING BANKNOTES
US9437067B2 (en) 2012-09-21 2016-09-06 Grg Banking Equipment Co., Ltd. Financial self-service equipment and banknote separation apparatus and separation method thereof

Also Published As

Publication number Publication date
GB1469249A (en) 1977-04-06
SE397593B (sv) 1977-11-07
DE2442542B2 (de) 1975-10-16
JPS5073373A (sv) 1975-06-17
BE819780A (fr) 1974-12-31
SE7413609L (sv) 1975-05-02
DE2442542A1 (de) 1975-05-07
CH573631A5 (sv) 1976-03-15
ES431062A1 (es) 1976-10-16
NL7413579A (nl) 1975-05-02
CA1016205A (en) 1977-08-23
SU581857A3 (ru) 1977-11-25
FR2250158B1 (sv) 1976-10-22
FR2250158A1 (sv) 1975-05-30
IT1022434B (it) 1978-03-20

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