| 摘要 |
PURPOSE:To improve the control effect of azimuth for each drive of a tape and the durability of an azimuth control mechanism, by securing such a constitution where an individual control screw has a contact with an abutting part according to the tape driving direction, then the control screw moves away from the abutting part when the tape driving direction is changed. CONSTITUTION:A direction switch member 23 is shifted toward an arrow head A or B and therefore a cam member 21 is turned. Then an individual azimuth control screw has a contact with an abutting part for each tape driving direction. In other words, a control screw 19 has a contact with an abutting part 25 of the member 21. While a control screw 18 abuts on an abutting part 26. Thus the individual azimuth control is possible independently for each tape driving direction. At the same time, a follower part 20 is lifted via a cam part 24 during the switch of the driving direction. Thus both screws 18 and 19 move upward apart from parts 26 and 25 together with a head fixing plate 13. In such a way, the azimuth control effect is improved for each tape driving direction. Then the durability is also improved for an azimuth control mechanism. |
