Reel-guide apparatus of a magnetic recording/reproducing apparatus having cassette reel holding chassis which is lowered to a position on a lower chassis

In a magnetic recording/reproducing apparatus of the type having;

• an upper chassis including a cassette holder for receiving a tape cassette, a slider on which are installed a pair of reel bases and reel hubs for receiving and supporting the reels of said tape cassette, a rotary drum;
• a lower chassis;
• and mechanisms for lowering said upper chassis toward said lower chassis to seat said upper chassis on said lower chassis;
• the improvement comprising:
• reel guides on said lower chassis;
• each said reel guide having a protrusion pointing towards said upper chassis;
• holes in said reel bases at positions corresponding to said protrusions, whereby when said upper chassis is lowered onto said lower chassis, said protrusions enter said holes respectively, to properly position said upper chassis on said lower chassis;
• and
• tape cassette position determining element on said lower chassis for stably positioning said tape cassette when said upper chassis in seated on said lower chassis.