| 摘要 |
PURPOSE:To provide allowance to the parts dimensional accuracy of a head, by a method wherein the intermediate part of a leaf spring is supported by a bearing and the rear end part thereof is engaged and the leaf spring is revolved around the bearing part of the aforementioned leaf spring in the side of the leading end thereof by the bending of the leaf spring in the side of the rear end part thereof from the bearing part. CONSTITUTION:An armature 9 is attracted to a core 10 by the magnetic force of the magnetic field generated by a permanent magnet 2 and the A-part side of a leaf spring 5 is revolved around a pin 15 to displace the leaf spring 5. In this case, because the A-part is not bent and a B-part revolving originally is engaged because of the difference of a width, the leaf spring 5 is bent by deflection DELTAB'. At the time of recording, a coil 11 is excited to negate the magnetic field of the permanent magnet 2 and the armature 9 is released from the core 10 and the A-part is revolved by the elastic force for eliminating the bending of the B-part of the lead spring 5 and a wire 8 is displaced to perform the recording of a dot. At this time of recording, the gap dimension between the armature 9 and the core 10 in such a state that he deflection of the leaf spring 5 is 0 comes to DELTAA. Herein, the deflection DELTAB' is larger than the gap dimension DELTAA and can be extremely largely taken as compared. with conventional one. |
