| 摘要 |
PROBLEM TO BE SOLVED: To reduce the cost of a transparent panel and to enhance degree of freedom of switch arrangement by providing a pyroelectric-type sensor for detecting the finger touch or access of a purchaser by change of an infrared radiation and by outputting signals of an automatic dispenser, such as an item selection signal. SOLUTION: On the back side of a transparent panel 14, a cylindrical light guiding part 15a is formed on positions corresponding to a 'sellable' display and a 'sold out' display of a display plate 17 on a long reflector 15, and an infrared radiation through-hole 15b is formed on a position corresponding to a depress operation position display for respective sample items. When a coin is inserted, LEDs 7a and 7b positioned in the light-guiding part 15a on a circuit board 6 provided with a connector 3 light up according to respective items which are sellable or sold out. Since the portions on the display plate 17, except for the press operation position display are processed not to transmit infrared radiation, when sellable, a touch or access to the depress operation position display is detected by a pyroelectric-type sensor 16 on the position corresponding to the infrared radiation through a hole 15b on the circuit board 6, and the item to be sold is carried to an outlet. Each transparent panel 14 has respective part including the display plate 17 on the back side thereof and boring process becomes unnecessary.
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