GB1368857A - Switching device for a coin controlled machine - Google Patents

Abstract

1368857 Coin freed mechanisms WALTER KIDDE & CO Inc 22 Feb 1972 8187/72 Heading G4V A switching device for an electrically operated coin freed machine comprises a pair of series connected switches S1, S2 through which conduction is established after either a predetermined number of coin slide movement cycles or a single such cycle depending on the configuration of a drive member 15 disposed for movement in unison with the coin slide. In the first configuration the drive member displaces cams C1, C2 to actuate the switches in a predetermined sequence and in the second configuration displaces contact members 34, 35 to close both switches independently of the operation of the cams. Changeover from one configuration to the other is effected by exchange of an adapter 25 or 25A releasably secured to the end of the drive member. In the embodiment shown, when the flat adapter 25 is used, two coin slide cycles are required, the adapter on insertion of the slide rotating a ratchet plate 19 carrying a pawl 22 which on withdrawal of the slide engages gear 17 to rotate shaft 16 and cams C1, C2 through an angular distance determined by index gear 18 and latching lever 23. This first indexing of the cams opens switch S1 (normally closed) and closes switch S2 (normally open), the switch S2 being held closed by latch 27 that is released by solenoid 33 at the end of a machine operation (Figs. 9 and 10, not shown). The second indexing of the cams closes switch S1 (Fig. 11, not shown) to establish conduction through the pair of switches (Fig. 3, not shown). When adapter 25A is attached to the drive member depending flanges 40, 41 act on members 34, 35 associated with the switches to establish conduction after one coin slide movement cycle. Embodiments which require three and four coin slide cycles to establish conduction are shown respectively in Figs. 19 to 21 and Figs. 22 to 24 (not shown). The former includes modified switch operating cams (C1B), (C2B) and the latter uses modified ratchet and index gears (17C), (18C) to reduce the amount of angular rotation for each coin slide cycle as well as modified cams (C1C), (C2C).