Rotary magnetic head device

摘要

A plurality of head tips Ra to Rd' and Pa to Pd' are disposed adjacently to each other in such a manner as to project from a peripheral surface of a rotary drum 2 by a predetermined length and at the same time the projecting lengths of the head tips Ra to Pd' are selected in such a way so that the surface pressures of a plurality of head tips Ra to Pd' on the magnetic tape 9 become uniform. Outer head tips are inclined by a predetermined angle and fixed. With such an arrangement, since the gap positions of the head tips become the center of tape contact against the magnetic tape 9, the surface pressures of the magnetic tape 9 against the head tips become substantially constant. If the surface pressures become constant, the head tips uniformly wear.