Patent GB-1458304-A (GB)
Title: Coin operated hiring time meter
IPC: G07B15/02
Filed: 1974-05-07
Abstract: 1458304 Parking meters KIENZLE APPARATE GmbH 7 May 1974 [10 May 1973] 20021/74 Heading G4V A coin operated hiring time meter which is set by manual actuating means to a predetermined time has a device for testing a coin and transmitting the test criterion to time setting means, wherein coins of varying value and diameter are inserted through a coin input device into a common diameter test means which is part of a coin lever mounted on a common shaft, which by means of a spring are moved in opposite directions towards one another for coin testing purposes and which are thereafter commonly rotated by the manual actuating means, the driving lever having control means for evaluating the sensed coin criterion while the coin lever is provided with driving elements for passing on the coin criterion to the time setting means. There are two sub-units on plates 1 and 2, Plate 1 has devices for taking up, sensing and transporting a coin put-in, including also the manual actuating member 15. Plate 2 comprises devices for tensioning, setting and returning a time indicating mechanism. Diameter test means B has three surfaces 46, 47, 48 in a cage part 29. Slide 52 positioned on driving lever 27 cooperates with control parts 62, 69 of coin control device C. There is a coin lever 34. Slide 52 can assume two positions, I and II. In position II it activates return stop means 62 and 10, and coin transport means 69, 73. The return stop means is pawl 62 engaging with final toothing 10. The pawl is moved out of engagement at the end of full travel of the driving lever 27 by part 12. End 68 of slide 52 resets it to the initial position. For coin transport purposes lever 69 is pivotably mounted on driving lever 27. The lever has several arms and as slide 52 moves it moves coin supporting flap 73 via sloping surface 76. Bent part 80 is retracted and any coin M is no longer retained. Driving lever 27 also carries adjustable driving elements 82. The positioning of the driving elements represents a certain coin size and results in a certain angular position of driving lever 27 and coin lever 34 to each other. Coin lever 34 is also provided with testing levers 87, 88, 89 pivoted at 91 and biased by springs 90. The levers co-operate with driving elements 82 and will be individually rotated through a definite angle dependent on the relative positions of the driving lever 27 and the coinlever 34 and on the special setting of driving elements 82 on the driving lever 27. In order to obtain a clear decision for a coin to be genuine or not the ends of the testing levers have segments 94, 95, 96. Their peripheries form circular cam portions 97, 98, 99. Two armed pawls 100, 101, 102 cooperate with the cam parts so that the other arm 100/2- 102/2 may be brought into engagement with switching means for setting time setting means F. The switching means is the connecting link between the time setting device F and the coin control device C. It consists of switching segment 113 mounted on shaft 114 which is rotatably mounted on plate 2 coaxially with shaft 9. Also connected to shaft 114 is exchangeable toothed wheel 115 which is in engagement with exchangeable wheel 116. Wheel 116 controls the force stored in clockwork G. Part 117 of segment 13 has grooves 120, 121, 122 separated by bevelled or contrate toothing 120/1, 121/1, 122/1. This toothing is engageable by tooths 110/2, 111/2, 112/2. In order to vary the angular range through which segment 113 is advanced by a released driving element 110, 111, 112, a guiding plate 126 is arranged between the driving elements 110 to 112 and the respective slot toothings 120-122 and 120/1 to 122/1. To obtain a variable but adjustable time setting a control segment 129 is connected to segment 113 so that toothings 120/1-122/1 may be wholely or partly covered so that they cannot co-operate with driving elements 110-112. The segment may have cut outs 164, 165, 166 in order to be able to switch at least several whole multiple setting ranges. Motion is transferred from segment 113 via toothed wheels 123, 124 to presetting means 125. This presetting device consists of a toothed wheel 124 having an axially projecting arm portion 131 which projects into a recessed slot 135 in time indicating disc 134. Via toothing 145 a setting segment 147 is in engagement with toothing 137 so that disc 134 is permanently under the driving force of spring 146. One arm of the segment 147 cooperates with a locking pawl 151. Unlocking of the pawl is achieved by a finger on lever 27. The mechanism is such that whenever means 15 is moved out of its initial position the time indicating means H are automatically moved to a position in which they indicate zero time. They remain locked in this position until means 15 and finger 159 have returned to the initial position. When this occurs setting segment 147 is no longer locked and can follow the action of spring 146 and rotate on belt 149 thereby setting the time by moving disc 134 via toothings 145, 137 until they are arrested by resetting means 125.