the pickup base being supported and allowed to slide in {TAIL ~ a radial direction} of {HEAD ~ the optical disc} by making the main shaft run through the guide hole of the first supporting section and the sub shaft to be pinched by the guide groove of the adaptor member 
the pickup base being supported and allowed to slide in { TAIL ~ a radial direction } of { HEAD ~ the optical disc } by making the main shaft run through the guide hole of the first supporting section and the sub shaft to be pinched by the guide groove of the adaptor member
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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