| 摘要 |
<p>PURPOSE: To obtain stable tape running and a normal recording/reproducing signal by forming a part abutting on a V-shaped groove part to a conical shape being thinner as it goes downward while having the inclined angle on the circumferential surface equal to a set inclined angle of the tape guide post. CONSTITUTION: A truncated conic abutting part 1a having the diameter smaller as it goes downward is provided at the lower part of the tape guide post 1. The post 1 is placed on a loading block 2 together with an inclined post 5. For the time of loading operation, a block receiving part 3 for accepting the block 2 is provided with the V-shaped groove 4 opened toward the abutting part 1a of the post 1. An abutting surface 4a which abuts on the circumferential surface of the abutting part 1a when the block 2 is accepted, is provided on the V-shaped groove part 4. Then, the abutting part 1a is formed with the inclined angle equal to the set inclined angle of the post 1. Thus, the abutting surface 4a of V-shaped groove part 4 and the abutting part 1a are stably brought into line contact each other, and wear of the contact point due to a single point concentrated load is mitigated, then the stable usage over a long period is attained.</p> |
