Tape drive apparatus, tape extraction apparatus and tape cassette

Abstract

The invention proposes a tape drive apparatus, tape extraction apparatus and tape cartridge that enable a reliable chucking and chucking release, and a stable carrying of a tape being extracted from a cartridge. The invention is constituted by a magnetically recording/reproducing apparatus; a cartridge mount mechanism 5 whereon a tape cartridge 4 with the magnetic tape T wound therein is mounted; a takeup reel 3 to wind up magnetic T thereon; a leader block 12 attached to one end of the magnetic tape T with a rotation restriction section provided thereon; a chucking mechanism 14 which comprises a chucking pin 27 that restricts the rotation of the leader block and chucks the leader block 12, chucking and releasing chucking of the leader block 12; a carrying mechanism 11 which comprises the carrying section 13 for carrying the chucked leader block 12; a chucking release levers 33 and 34 which releases chucking of the chucking mechanism 14, which is actuated by cams 35 and 36 provided on the carrying section 13 and disposed on both ends of the cam groove 19 for guiding the movement of the leader block 12; and reel motors 53 C and 53 T including frequency generators 52 C and 52 T for rotationally driving the tape reel 410 within the tape cartridge 4 and the takeup reel 3, respectively.

1 - 9 . (canceled)  
   
   
       10 . A tape cartridge, comprising: a leader block provided on one end of a magnetic tape; 
 a tape reel for winding up a magnetic tape with said leader block provided at one end; and    a cartridge unit that rotatably stores said tape reel with an opening which exposes part of said leader block to the outside; wherein    said leader block includes an engaging section engaged with an engaging shaft of a tape extraction member, and a rotation restriction section which restricts the rotation of said leader block with respect to the engaging shaft, is disposed on at least one end of the engaging section.    
   
   
       11 . The tape cartridge according to  claim 10 , wherein 
 a positioning groove, which guides the leader block to be inserted into the cartridge, and determines the position thereof, is provided on said leader block.    
   
   
       12 . The tape cartridge according to  claim 10 , wherein 
 a positioning groove, which guides the leader block to be inserted into the takeup reel, and determines the position thereof, is provided on said leader block.    
   
   
       13 . The tape cartridge according to  claim 10 , wherein 
 said leader block comprises an engaging depression section disposed thereon to be engaged with an engaging protrusion section disposed on a leader block press piece of the tape cartridge.    
   
   
       14 . The tape cartridge according to  claim 10 , wherein 
 said leader block comprises an engaging depression section disposed thereon to be engaged with an engaging protrusion section disposed on the takeup reel.