JPH01170321U

JPH01170321U -

Info

Publication number: JPH01170321U
Application number: JP6543488U
Authority: JP
Priority date: 1988-05-17
Filing date: 1988-05-17
Publication date: 1989-12-01

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例による磁気ヘツ
ド高さ調整装置を回転磁気ヘツド装置に装着した
状態を示す軸方向部分断面図、第２図は第１図の
実施例の主要部の分解斜視図、第３図および第４
図はそれぞれこの考案の他の実施例を示す、第１
図と同様の軸方向部分断面図、第５図は従来の磁
気ヘツド高さ調整装置を備えたビデオテープレコ
ーダの回転磁気ヘツド装置の軸方向部分断面図で
ある。図において、１は固定シリダ、１０１はその外
周面、１０２はリード溝、２は中心軸、３は回転
シリンダ、４は磁気ヘツド、６はラジアル流体軸
受、７はスラスト流体軸受、１０は調整ねじ、１
４はモータ、１６はレンチ部材である。なお、各
図中、同一符号は同一または相当部を示す。 Fig. 1 is a partial axial cross-sectional view showing a state in which a magnetic head height adjustment device according to an embodiment of this invention is attached to a rotating magnetic head device, and Fig. 2 is an exploded view of the main parts of the embodiment of Fig. 1. Perspective view, Figures 3 and 4
The figures show other embodiments of the invention, the first
FIG. 5 is a partial axial cross-sectional view of a rotary magnetic head device of a video tape recorder equipped with a conventional magnetic head height adjustment device. In the figure, 1 is a fixed cylinder, 101 is its outer peripheral surface, 102 is a lead groove, 2 is a central axis, 3 is a rotating cylinder, 4 is a magnetic head, 6 is a radial fluid bearing, 7 is a thrust fluid bearing, and 10 is an adjustment screw. ,1
4 is a motor, and 16 is a wrench member. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A fixed cylinder having a lead groove on the outer peripheral surface for guiding the running of the magnetic tape, a central shaft fixed to the center of the fixed cylinder, and rotatably supported from the central shaft via a radial fluid bearing and a thrust fluid bearing. A magnetic head height adjusting device in a rotating magnetic head device comprising a rotating cylinder having a magnetic head and a magnetic head attached to the rotating cylinder for recording and reproducing information on a magnetic tape running along the lead groove, An adjustment screw is screwed into the cylinder in the axial direction, and has one end in contact with the magnetic head and the other end exposed to the outside of the rotating cylinder, and by rotating the adjustment screw, the height of the magnetic head can be adjusted. The rotation adjusting device is characterized in that it is provided with a motor detachably attached to the rotating cylinder, and a mechanism for transmitting the rotation of the rotating shaft of the motor to the other end of the adjusting screw. A magnetic head height adjustment device in a magnetic head device.