As the lower drawer 12 moves, the small and large pinions 15 and 13 are rotated by the first rack gear 12a fixed to the lower portion of the lower drawer 12, causing {HEAD ~ the upper drawer} 14 to advance at {TAIL ~ a higher speed} to open the tray housing to receive the tape cassette 22 
to advance at
As the lower drawer 12 moves , the small and large pinions 15 and 13 are rotated by the first rack gear 12a fixed to the lower portion of the lower drawer 12 , causing { HEAD ~ the upper drawer } 14 to advance at { TAIL ~ a higher speed } to open the tray housing to receive the tape cassette 22
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH