| 摘要 |
<p>PURPOSE:To surely perform automatic repetition, by adding and subtracting inversely with each other for two sets of numeric wheel groups forming a counter via one worm gear and interlocking two push button zero return counter. CONSTITUTION:A stepped gear 16 consisting of a small diameter gear 16A and a large diameter gear 16B is driven with a worm gear 41. The revolution drives numeric wheels 17-19 via the gear 24A, a transmission pinion 24, carry pinions 25, and 26 for counter display. When a zero return button 27 is depressed, a bracket 22 is activated and each numeric count returns to zero. A wiper 20 fixed to the highest digit numeric wheel 19 closes a contact of a printed circuit board 43 and stops the tape run when the highest number changes 9 0. Thus, the 1st counter K is formed and similarly the 2nd counter M is formed. When the count reaches a desired value after the 1st counter K returns to zero, the 2nd counter M is returned to zero, a prescribed difference is set to both the counters and the automatic repetitive can surely be performed.</p> |
