| 摘要 |
PURPOSE:To form a titled cassette lid body by a simple die constitution and a low man-hours and to utilize the pressing force of a tape cassette as turning force efficiently by providing plural rugged and curved tongue-piece parts which have the center on the extended line of the blocking plate part of a cassette lid body, and by forming a bearing part. CONSTITUTION:Plural recessed and curved tongue-piece 18 and projected and curved tongue-piece 19, which have the same center and the center is on the extended line of a blocking plate part 6a, are provided at the one end face of the blocking plate part 6a of a cassette lid body 7. Then, a bearing part 6c which inserts a rotational shaft 8 is formed. The bearing part 6c can have the stable inner dia. dimension by the simple die. In addition, shaft directional partial force F2 can be minimized, and pressing force F can be used as turning force F1.
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