ROTARY CYLINDER

PURPOSE:To attain small size, light weight and thin profile and to reduce the cost by devising the cylinder such that the upper cylinder is fixed and the lower cylinder is made turnable. CONSTITUTION:When a drive current is supplied to a motor 6, a torque is caused to the rotor, the lower cylinder 1 is driven and the head 4 is also driven. A magnetic tape is press contact over a range of a prescribed angle of the outer circumferential face of the lower cylinder 1 and the upper cylinder 2, runs with a tilt by a prescribed angle onto a drive face of the lower cylinder 1 and a recording track 12 is formed obliquely to the lengthwise direction on the magnetic tape 11. The upper cylinder 2 fixed has only to have a function of regulating the running of the magnetic tape. The part projected in the tape running regulation lead plate 3 acts like a tape guide for the magnetic tape in press contact onto the rotary cylinder. Thus, small sized, thin profile and light weight is attained for a VTR, the head adjustment and replacement are simplified and the manufacture cost is reduced.