| 摘要 |
PCT No. PCT/JP88/01134 Sec. 371 Date Sep. 6, 1989 Sec. 102(e) Date Sep. 6, 1989 PCT Filed Nov. 11, 1988 PCT Pub. No. WO89/04538 PCT Pub. Date May 18, 1989.According to this invention, drive posts (4) secured to a cassette holder (3) serving as a cassette loading apparatus for a VTR, for example, for horizontally holding a cassette slide in slide grooves (14) on arm levers (13) provided at arm gears (11), while abutting on one side thereof. Accordingly, by setting greater the width of the slide groove (14a) formed in the arm lever (13a) on the drive side, the center of the drive post (4a) on the drive side is deviated from the center line of the arm lever (13a). As a result, the drive post (4a) on the drive side and the drive post (4b) on the driven side can be set in phase by setting the phase delay of the arm lever (13b) on the drive side and the phase delay of the drive post on the drive side, which are caused by the backlash of gears including drive gears (18) that engage the arm gears (11) at a front loading time, approximately equal to each other. That is, the phase of the drive post (4a) on the drive side with respect to the drive post (4b) on the driven side can be freely adjusted by properly shaping the slide grooves formed in the arm levers (13). Accordingly, loading and unloading through a front type manipulation can be executed while keeping the right and left ends of the cassette (2) in parallel.
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