EP0633209A1 - Vorrichtung und Verfahren zum Ausgeben von flachen Produkten - Google Patents

Vorrichtung und Verfahren zum Ausgeben von flachen Produkten Download PDF

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Publication number
EP0633209A1
EP0633209A1 EP94401472A EP94401472A EP0633209A1 EP 0633209 A1 EP0633209 A1 EP 0633209A1 EP 94401472 A EP94401472 A EP 94401472A EP 94401472 A EP94401472 A EP 94401472A EP 0633209 A1 EP0633209 A1 EP 0633209A1
Authority
EP
European Patent Office
Prior art keywords
reserve
product
gripping member
contact
delivery
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.)
Withdrawn
Application number
EP94401472A
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English (en)
French (fr)
Inventor
Louis Piazza
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0633209A1 publication Critical patent/EP0633209A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
    • G07F11/02—Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines
    • G07F11/04—Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines in which magazines the articles are stored one vertically above the other
    • G07F11/14—Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines in which magazines the articles are stored one vertically above the other with means for raising the stack of articles to permit delivery of the topmost
    • 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
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/14—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices
    • 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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B3/00—Machines for issuing preprinted tickets
    • G07B3/04—Machines for issuing preprinted tickets from a stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material

Definitions

  • the present invention relates to a device and a method for the delivery of flat products such as magnetic cards and thin sheets of paper or plastic within a vending machine.
  • the process has more particularly the function of selecting a copy of the product offered by the vending machine and stored in a reserve and then directing it towards an outlet hatch located behind the front face of the dispenser and opening onto it, so that the user can take possession of it.
  • patent FR-A-2 629 066 describes an automatic device for distributing thin sheets, in which a suction cup is used to grip the thin sheets one by one.
  • the suction cup connected to a suction system is mounted on a sleeve coupled to a drive system comprising two identical cranks and synchronized in their rotation, one of the arms for each of which is fixed at an offset axis two peripheral pinions driven by a main pinion connected to the other of an electric motor.
  • the sleeve at the lower end of which the suction cup is fixed performs a rotary movement while maintaining its vertical position.
  • the suction cup grips the thin sheet, then while maintaining the suction, the sleeve moves a quarter of a turn and releases the sheet after the suction stops.
  • the patent does not however describe a system allowing the presentation of the thin sheet under the suction cup. This document therefore relates only to a movable gripping member for the use of a device for delivering thin sheets.
  • the system proposed by this document has the drawback of occupying a considerable volume inside the automatic dispenser due to the use of rotary elements. At a minimum, the sleeve must perform a quarter turn for a complete cycle. It is then necessary to provide reverse direction contacts.
  • the present invention aims to define a device for delivering flat products of simple and compact structure requiring only a small footprint inside an automatic dispenser. Furthermore, the invention also defines a distribution method for implementing the claimed device.
  • the first object of the invention is therefore an automatic dispensing device for the individual delivery of substantially flat products, comprising a reserve adapted to receive said products in the form of a vertical stack, characterized in that the reserve comprises drive means to move it vertically between a fixed low rest position and an instantaneous variable high position, a gripping member movable horizontally between a standby position vertically from said reserve and a delivery position out of said reserve being provided against -top of said reserve for gripping the product located in the reserve at the top of the stack when the reserve arrives in the high position in which said product makes contact with said gripping member located in the standby position and delivering said product when the gripping arrives in the delivery position.
  • the reserve moves along a simple route when the device is not requested, the reserve is rest in a fixed low position regardless of the height of the flat products to be dispensed. As soon as the device is activated, the reserve rises until the product at the top of the pile is grasped by the gripping member. Then, the reserve returns to its fixed rest position. In this way, it is impossible to grasp the products in the reserve by inserting a utensil into the outlet hatch into which the product is delivered once the suction cup has reached the delivery position. This ensures against any malicious act of looting of the reserve.
  • the reserve comprises a movable bottom and fixed vertical side walls between which said bottom is guided vertically between the high position and the low position.
  • limitation means are provided in the high position and in the low position respectively, to limit the movement of said bottom, the limitation means in the high position consisting of a direction of movement reverser.
  • the limiting means consist of contacts, the high position contact being a change-over contact.
  • the limit switch in the low position allows the bottom to remain between the lateral guide walls. Once the bottom has returned to the low position, it remains immobilized there: it is its rest position while waiting for the next trigger commanded by the entry of a means of payment in the vending machine.
  • the electrical reversing contact it allows the direction of travel of the bottom to be reversed after the product located at the top of the pile has been gripped by the gripping member, without which the bottom would remain in permanently pressed against the gripping member which could not then start correctly its race towards its delivery position.
  • the seized product could entail other products located below it. This is why it is necessary for the bottom to be withdrawn from its high position before the gripping member begins its stroke.
  • the product at the top of the stack is first dissociated from the rest of the stack by lowering the bottom, then only it is drawn out of the reserve.
  • the drive means comprises a series of toothed wheels engaged in racks provided in opposite side walls of said reserve, the toothed wheels being integral with said bottom and driven by an electric motor.
  • the bottom therefore constitutes in a way a forklift bearing on the side walls.
  • the gripping member consists of a suction cup connected to a suction pump, said suction cup having a contact surface substantially parallel to said bottom of the reserve.
  • the gripping member is mounted on a movable arm which can be moved horizontally between the waiting position and the delivery position.
  • limitation means are provided in the standby position and in the delivery position respectively to limit the movement of the movable arm, the limitation means in the delivery position consisting of a direction of travel reverser.
  • the limiting means consist of contacts, the delivery position contact being a change-over contact.
  • the standby position contact is a conventional limit switch, the gripping member remaining immobilized there until receipt of the next product.
  • the waiting position therefore constitutes the rest position of the gripping member.
  • the delivery position contact is a reverser: once the product has been left out of the reserve, the gripping member therefore immediately returns to its rest position.
  • the stop of the suction pump therefore corresponds temporally to the reversal of the direction of travel of the gripping member.
  • the movable arm is provided longitudinally with a rack, a toothed wheel actuated by an electric motor being engaged in said rack to move said arm provided with said gripping member.
  • the mobile arm and the toothed wheel are mounted on a plate having a cutout for the passage of the gripping member, said plate being removably mounted at the upper end of said reserve.
  • the plate closes the reserve at its upper end and collects the thrust from the bottom when it comes into contact with the gripping member. On the other hand, it must be removable for the introduction of new product stacks or to facilitate access to the interior of the reserve in the event of a breakdown.
  • a detection means is provided for detecting the delivery of the product abandoned by the gripping member.
  • a means of controlling the end of travel of the movable arm in the delivery position is provided for acting on the detection means so that only the products abandoned in the delivery position are detected by said detection means.
  • the side delivery wall through which the extraction of the product is carried out extends vertically above the level of the product situated at the upper end of the stack when the bottom of the reserve is in the low position.
  • Vending machines are frequently subject to acts of vandalism in order to loot either the case or the supply of product.
  • This arrangement contributes to the inviolability of the reserve of product: in fact, the only way of access to the reserve is by the hatch which opens on the front face and into which the product descends by its own gravity once released by the 'gripping organ.
  • an additional baffle is produced in the path leading from the product to the outlet of the hatch. It is therefore all the more difficult to produce a utensil capable of entering the reserve to seize the products.
  • the method implements a gripping member as well as a reserve each animated by its own movement, but synchronized whose relative meeting point takes place when the reserve is in the high position and the gripping member vertically.
  • the respective displacements define orthogonal translational movements in a vertical plane, which minimizes the size of the device.
  • the method implements a gripping member as well as a reserve, each driven by its own movement, but synchronized, the relative meeting point of which takes place when the reserve is in the high position and the gripping member in its vertical position.
  • the respective displacements define orthogonal translational movements in a vertical plane, which minimizes the size of the device.
  • the gripping member returns to the vertical of the reserve once the product has been delivered.
  • the gripping is carried out by suction by means of a suction cup connected to a suction pump.
  • Suction is a safe and effective means of picking up products with a substantially flat surface.
  • a vending machine it is necessary to store a certain amount of products, which imposes a substantially flat shape for reasons of orientation of the flat surface and size.
  • the suction is activated while the product at the top of the stack is away from the suction cup during the step of placing said reserve upwards.
  • the structure of the device or distribution module consists of four vertical side walls 26, 27, 28 and 30 and a plate 25 mounted at the upper end of the side walls.
  • This structure can be produced by machining or by molding depending on the quantity of series to be produced.
  • the material used for the walls and the plate is transparent for a question of visibility inside the module.
  • the plate 25 can be fixedly mounted at the end of the walls, but the preferred embodiment provides that the plate is articulated on one of the walls and kept locked by means of fixing flanges 232 in which are inserted fixing lugs 21 as shown in Figure 1. This feature allows easy access to the interior of the volume defined by the side walls which constitute the product reserve.
  • the plate 25 has a deep cut through which extends vertically a suction tube 3 connected by a hose 2 to a suction pump 1.
  • the other end of the suction tube is provided with a suction cup 8 which projects inside the previously defined volume.
  • the suction cup is biased elastically downwards by means of a pressure spring 6 for the suction tube bandaged between two washers 5 and 7 disposed respectively against the underside of the plate 25 and against the suction cup 7.
  • a wedge 4 for positioning suction tube 3 is mounted on the latter to fix its orientation, that is to say prevent its rotation and a fortiori that of the suction cup which is subject to it.
  • the suction system which has just been described constitutes a preferred embodiment of the invention, but it goes without saying that any other suitable gripping system can also be suitable without departing from the scope of the invention.
  • the suction tube 3 thus provided with its suction cup 8 is adapted to move horizontally through the cutout, this is why the latter is of longitudinal shape.
  • the suction rod 3 can move between a so-called waiting position in which the suction cup is approximately centered relative to the side walls and a so-called delivery position in which the suction cup is positioned outside the volume defined by the side walls. To allow the rod 3 to reach the delivery position, the plate 25 overhangs the underlying side wall 30 on its side where the cutting has been made.
  • the side wall 30 does not extend to the level of the plate, but stops at a lower level, thus defining an access window.
  • the suction rod 3 is mounted on a distribution arm 14 which extends horizontally on the plate 25 and parallel to the cutout.
  • the rod 3 is arranged at the end of the arm giving towards the opening of the cutout.
  • the arm gradually masks the cut.
  • the arm is provided longitudinally with a rack 15 which extends parallel to the cutout.
  • the arm 14 In its movement, the arm 14 is, on the one hand, guided horizontally by a guide 13 which adjoins it and which is fixed on the plate 25 and, on the other hand, by a holding wedge 12 of the arm under pressure on the plate 25.
  • the wedge 12 is fixed on the guide 13 and together define a housing in which the arm can slide without play practically.
  • the wedge 12 does not extend over the entire guide 13, but only over a part situated behind the cutout so as to allow the displacement of the suction rod 3.
  • the wedge is surmounted by a motor support 10 on which is mounted an electric drive motor 9 of the arm 3.
  • the transmission between the motor 9 and the arm 14 is ensured by a toothed wheel or pinion 11 mounted in the extension of the drive axis of the motor 9 and of which the teeth are engaged in the rack 15 located along the arm 14.
  • the speed of rotation of the electric motor is of the order of several thousand revolutions / minute and that of the toothed wheel reduced to about 30 revolutions / minute by means of a reducer 91. This makes it possible to have a very large torque providing a useful safety margin for this type of device used very frequently.
  • the motor could also be mounted flat with an angle return arranged between the reduction gear and the toothed wheel.
  • a reserve which can be moved vertically between the side walls.
  • the bottom 31 of the reserve actually constitutes a forklift.
  • the side walls serve as a support for the plate 25 and as a guide for the bottom 31.
  • the bottom moves between an instantaneous high position in which the product at the head of the pile comes into instant contact with the suction cup and a fixed low position of rest in which the bottom is stationary near the lower end of the side walls.
  • the bottom 31 is driven by a second electric motor 34, the drive axis of which is extended by a toothed wheel.
  • the toothed wheel either drives two other toothed wheels engaged in a rack 29 provided on a side wall, or directly attacks said rack 29.
  • the motor and the toothed wheel or wheels are mounted on a vertical support 32 fixed below the bottom 31.
  • a vertical support 32 fixed below the bottom 31.
  • other toothed wheels or not also mounted on the support 32 bear on the side walls.
  • the drive wheel or wheels are necessarily toothed and penetrate one or more racks, while the free wheels can be toothed or not.
  • the drive motor 34 of the carriage like that of the arm 14, has a high speed of rotation to finally generate a relatively slow movement of the carriage, this in order to increase the resistance of the device.
  • a reduction gear is then provided between the motor and the direct toothed wheel.
  • the carriage and the suction cup therefore each carry out a translational movement which should be limited both in one direction and in the other.
  • the invention provides for several limit switches.
  • a contact is fixed on one of the walls. As soon as the carriage actuates the contact during its descent, this causes the motor 34 to stop and the carriage to stop in this position. This is the device's rest position when no order is given to it.
  • the contact is positioned on one of the side walls so that the product at the head of the stack is disposed below the level of the side wall 30 by which the product is extracted, when the carriage is immobilized in the low position. In this way, it is impossible to grasp the products in the reserve by inserting a utensil into the outlet hatch into which the product is delivered once the suction cup has reached the delivery position. This ensures against any malicious act of looting of the reserve.
  • the carriage stroke is also limited in the high position by means of a change-over contact 6 provided with an actuating rod 23.
  • the contact is located on the plate 25 and the actuating rod 23 passes through the plate extending vertically to inside the Reserve.
  • the rod 23 extends to the level of the suction cup 8, or slightly above.
  • the carriage then immediately reverses its travel and begins to descend. Once in the lower position, it remains immobilized until the next order.
  • the trolley therefore performs only a round trip without interrupting its travel in the high position.
  • the stroke of the carriage from its low position is a function of the height of the flat products present in the reserve.
  • the high position of the bottom is therefore variable and instantaneous. It thus succeeds in isolating the product securely at the top of the stack and ensuring the return of the gripping member without risk of it interfering with the product at the top of the stack.
  • the suction rod 3 on which the suction cup 8 is mounted is also limited in its stroke by means of contacts 17 and 18.
  • the contact 17 is a change-over contact like the contact 16, and limits the stroke of the tube in the delivery position. It is then desirable that the suction pump 1 is inactivated at the precise moment when the tube reaches the delivery position. Otherwise, the product may be delivered inside the reserve and not in the outlet hatch.
  • the stroke of the suction tube is also limited in the standby position by a single contact 18 identical to the limit switch contact in the low position of the carriage. According to a practical form, the contact 18 is triggered by the end of a screw 20 adjustable in height and mounted on the rack 15 of the dispensing arm 14.
  • the positioning of the tube can be slightly modified 3. A precise centering of the place of the center of gravity of the products is then possible.
  • the embodiment described implements contacts connected to an electronic card for managing the operating cycle of the device.
  • the control of the device can also be ensured by purely mechanical, electromechanical, electronic means or even by a microprocessor with appropriate software, without going beyond the scope of the invention.
  • Any means suitable for synchronizing the respective movements of the suction tube 3 and the carriage can be envisaged.
  • a complete operating cycle of the device takes place as follows: at rest, the carriage is immobilized in the fixed low rest position and the suction tube 3 in the standby position vertically from the carriage.
  • the suction pump 1 is not running.
  • a means of payment (currency, note or bank card) into the machine, an order is communicated to the device.
  • the cart topped with its stack of products begins its ascent to the suction cup 8. From preferably, the suction pump 1 is activated at the same time. The carriage continues to climb until the product placed at the top of the pile comes into contact with the already operating suction cup 8. The carriage can even slightly push the suction cup 8 and the tube 3 upwards against the action of the spring 6. This makes it possible to press the product against the suction cup 8 and thus to achieve an effective seal. Simultaneously, the product at the head of the pile actuates the reversing contact 16 via the rod 23. The carriage then reverses its direction of movement and immediately descends to its low position where it remains immobilized after having actuated the limit switch. .
  • the invention provides a means of controlling the delivery of the product.
  • a detection contact 24 detects the delivery or not of the product abandoned by the suction cup.
  • a control contact 19 acts on the message delivered by the detection contact 24 so that only the products abandoned in the delivery position are actually detected.
  • This control contact 19 consists of an end of stroke contact similar to contact 17 in that it is triggered when the suction tube arrives at the right of the delivery position. However, it differs in that it fulfills a purely functional role of validating the message delivered by the detection contact 24.
  • substantially flat product means any product that is easily stackable and has at least one flat surface to facilitate its gripping. It is also necessary for reasons of space and autonomy of the dispenser, that the stack comprises a large number of products. Magnetic cards in this case are an ideal product for vending machines equipped with such a device.
EP94401472A 1993-06-29 1994-06-29 Vorrichtung und Verfahren zum Ausgeben von flachen Produkten Withdrawn EP0633209A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9307896A FR2707966A1 (fr) 1993-06-29 1993-06-29 Dispositif et procédé de délivrance de produits plats.
FR9307896 1993-06-29

Publications (1)

Publication Number Publication Date
EP0633209A1 true EP0633209A1 (de) 1995-01-11

Family

ID=9448666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401472A Withdrawn EP0633209A1 (de) 1993-06-29 1994-06-29 Vorrichtung und Verfahren zum Ausgeben von flachen Produkten

Country Status (4)

Country Link
EP (1) EP0633209A1 (de)
FR (1) FR2707966A1 (de)
MA (1) MA23244A1 (de)
TN (1) TNSN94074A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751456A1 (fr) * 1996-07-18 1998-01-23 Savarin Philippe Francois Appareil de distribution de plateaux repas
FR2846315A1 (fr) * 2002-10-25 2004-04-30 Pascal Borreca Dispositif pour prelever des objets empiles les uns sur les autres

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB294406A (en) * 1927-10-18 1928-07-26 Charles Sherman Russell Improvements relating to automatic suction sheet feeding machines
US2431542A (en) * 1945-05-03 1947-11-25 Caruso Mario Self-propelled traveling device
US2455976A (en) * 1946-12-26 1948-12-14 Eight Lab C Article ejector for vending machines
JPS61127528A (ja) * 1984-11-27 1986-06-14 Ricoh Co Ltd 給紙装置
DE3606178C1 (en) * 1986-02-26 1987-07-16 Lazar Peter Process for separating sheets and sheet separator for carrying out this process
DE9100269U1 (de) * 1991-01-11 1991-07-18 Roth, Karl Heinz, 5060 Bergisch Gladbach, De

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB294406A (en) * 1927-10-18 1928-07-26 Charles Sherman Russell Improvements relating to automatic suction sheet feeding machines
US2431542A (en) * 1945-05-03 1947-11-25 Caruso Mario Self-propelled traveling device
US2455976A (en) * 1946-12-26 1948-12-14 Eight Lab C Article ejector for vending machines
JPS61127528A (ja) * 1984-11-27 1986-06-14 Ricoh Co Ltd 給紙装置
DE3606178C1 (en) * 1986-02-26 1987-07-16 Lazar Peter Process for separating sheets and sheet separator for carrying out this process
DE9100269U1 (de) * 1991-01-11 1991-07-18 Roth, Karl Heinz, 5060 Bergisch Gladbach, De

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
J.L. LOWRANCE ET AL.: "Sheet Feed Device", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 10, no. 3, August 1967 (1967-08-01), US, pages 307 - 308 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 320 (M - 530) 30 October 1986 (1986-10-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751456A1 (fr) * 1996-07-18 1998-01-23 Savarin Philippe Francois Appareil de distribution de plateaux repas
FR2846315A1 (fr) * 2002-10-25 2004-04-30 Pascal Borreca Dispositif pour prelever des objets empiles les uns sur les autres

Also Published As

Publication number Publication date
TNSN94074A1 (fr) 1995-04-25
MA23244A1 (fr) 1994-12-31
FR2707966A1 (fr) 1995-01-27

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