| 摘要 |
PURPOSE:To obtain a magnetic head which is free from the filings and a back gap by forming at least two projected streaks with a prescribed distance and along a center hole of a bobbin to the inside surface in the track width direction of the center hole of the bobbin. CONSTITUTION:The upper and lower projected streaks 4 are formed to the inside surface of a center hole 2a of a coil bobbin 2 and on the inside surface positioned in the width direction of a track and along the axial line direction of the hole 2a. In such a constitution, the streaks 4 touch the track width direction of a magnetic core half 1 when the end part 1a of the half 1 is fitted into a coil bobbin 2. A linear contact is substantially secured for the contact part between the streaks 4 and the half 1 if the projected degrees of the streaks 4 are kept at proper values. Furthermore an elastic deformation is caused at the side of the streak 4, and therefore no filings are produced. |
