Magnetic recording and reproducing apparatus including S fixed chassis for supporting a head drum and a movable chassis for mounting a tape cassette

A magnetic recording and reproducing apparatus comprising a cylindrical drum having a portion receivable in an open space of a magnetic tape cassette when said cassette is in the loaded state in said apparatus, the magnetic tape cassette including a magnetic tape supply reel, a magnetic tape take-up reel and a magnetic tape, said magnetic tape having first and second surfaces on opposite sides of said tape and being helically wound over a predetermined angle on said cylindrical drum in said loaded state of the cassette and scanned by at least a magnetic head upon rotation of said cylindrical drum to record or reproduce an information signal on said magnetic tape;

• a fixed chassis supporting said cylindrical drum so that said cylindrical drum is inclined in a direction perpendicular to a segment line connecting centers of the supply and take-up reels of said cassette when said cassette is in said loaded state in said apparatus;
• a movable chassis movable with respect to said fixed chassis for mounting said magnetic tape cassette while receiving a portion of said cylindrical drum in said open space of said magnetic tape cassette;
• first movable means provided on said movable chassis in an area thereof corresponding to said open space of said tape cassette in a loaded state of the magnetic tape cassette and movable between a first position in a cassette unloading state and a second position in a cassette loading completion state to contact said first surface of the magnetic tape and move the magnetic tape from said tape supply reel toward said cylindrical drum by a length sufficient to smoothly shift a level of the tape upwardly toward said cylindrical drum;
• second movable means provided on said fixed chassis so as to be displaceable between first and second positions and adapted to contact said second surface of said magnetic tape to cooperate with said first movable means to form a supply side tape running system for transporting said magnetic tape from said supply reel to said cylindrical drum;
• third movable means adapted to cooperate with said second movable means to form the supply side tape running system from said tape supply reel to said cylindrical drum;
• fourth movable means provided on said movable chassis in an area thereof corresponding to said open space of said magnetic tape cassette in the loaded state of the magnetic tape cassette and movable between a first position in a cassette unloading state and a second position in a cassette loading completion state to move the magnetic tape from said take-up reel toward said cylindrical drum by a length sufficient to smoothly shift a level of the tape downwardly from said cylindrical drum to said take-up reel, said first and fourth movable means being adapted to cooperate to helically wrap the magnetic tape around said cylindrical drum over a predetermined angle;
• and
• fifth movable means adapted to cooperate with said fourth movable means to form a take-up side tape running system from said cylindrical drum to said take-up reel.