IE43047L - Automatic coin checking mechanism - Google Patents

Abstract

1523208 Coin-checking mechanism AUTELCA AG 2 Aug 1976 [19 Aug 1975] 32055/76 Heading G4V An automatic coin-checking mechanism is mounted vertically as shown in Fig. 3 and has a coin insertion channel 1 and a coin checking chamber 2. A wall 3 of the channel and chamber is pivotally mounted and is normally positioned in a rest position 311 or a locked position 3<SP>1</SP>. In operation a coin 9 is inserted into channel 1. If it is metallic this is sensed by coil 13 and a run-through signal is produced. If it is non- metallic it passes direct to a return channel 7. The run-through signal operates a pressure device, 22, 23, 24 to move wall 3 from rest position 3<SP>11</SP> to locked position 3<SP>1</SP> against the action of leaf spring 21. Wall 3 has a projection 27 that co-operates with stop 28 to hold the coin correctly positioned relative to coils 14 and 15. If no acceptance signal is produced after a predetermined time the pressure device releases wall 3 which is moved to its rest position by spring 21. The "coin" then passes to return channel 7. If there is an acceptance signal a flap moves from a rest position 6<SP>11</SP> into an acceptance position where plate 34 opens a storage channel 8. Also pin 43 moves into the coin path to prevent further coins entering the checking chamber and second plate 35 is positioned to direct the accepted coin into channel 8. The pressure device releases wall 3 and the coin passes to the storage channel. If another coin has already been inserted pin 43 cannot move to its correct position and after a predetermined time wall 3 is released and the coins pass to the return channel. The flap is moved by a draw device 31, 32, 33 against the action of spring 30. At the end of the channel 8 there is an arrangement such that an accepted coin can be passed to the return channel 7 or to a further store. The channel 8 can contain a multiple of coins. When full counter coil 46 produces a continuous signal that prevents the acceptance of further coins. Plate 34 has a cutting edge that co-operates with a cutting edge on a fixed counter-knife 42. The wall 3 has an angle piece 16 that has a projection 19 that enters chamber 2 to allow a coin to pass to the checking area but prevent return movement. [GB1523208A]