| 摘要 |
PURPOSE:To obtain a perpendicular recording magnetic head with high durability, and high recording and reproducing sensitivity, by providing a cavity in which foreign matters can be received, at the front and rear in a direction of moving the magnetic recording medium of the main magnetic pole of the magnetic head. CONSTITUTION:A recording and reproducing main magnetic pole 42, and an erasing main magnetic pole 43 consisting of thin films with high permeability of small area are formed interposing a supporting body 41, at the oppositely installed side of the magnetic recording medium. Auxiliary magnetic poles 44 and 45 made of soft magnetic material forming the return path of magnetic flux are provided between the magnetic recording medium, and the main magnetic poles 42 and 43, keeping a wide opposing area to the magnetic recording medium. Core parts 44b and 45b on which recording and reproducing coils C and C are loaded, are formed at the main magnetic poles 42 and 43, and the auxiliary magnetic poles 44 and 45. Sliding bodies 46 and 47 made of nonmagnetic material are stuck on the upper planes 44c and 45c at the sliding sides of the auxiliary magnetic poles 44 and 45, on which the vertical recording magnetic head is constituted. The cavities 48 and 49 to receive the foreign matters are provided at the front and rear in the direction of moving the magnetic recording mediums of the main magnetic poles 42 and 43. In this way, dirts, etc., are captured in the cavities, and crush due to the foreign matters of the head, etc., can be prevented, and thereby, the durability of a device can be improved. |
