JPH03280209A - Magnetic head device - Google Patents

Abstract

PURPOSE:To prevent the azimuth and tilt angles of a magnetic head with a magnetic tape from being changed by supporting a magnetic head device body on its base by a position fixing means and coupling the body with the base by a coupling means. CONSTITUTION:The body 3 is supported on a prescribed position by a fixing spring 8 and coupled with the base 1 by a steady bracing plate spring 16. Thereby, the body 3 on which the magnetic head 4 is mounted is always stabilized in any posture and is not oscillated. When alignment between a traveling magnetic tape T and the head 4 is low, an azimuth adjusting screw 6 and a tilt adjusting screw 7 are properly rotated to adjust the posture of the body 3. The flexible part 10 of the spring 8 is arranged in the vicinity of an intersecting point between the center axis of oscillation of the body 3 at the time of adjusting azimuth and the center axis of oscillation of the body 3 at the time of tilt adjustment and can be flexed correspondingly to the adjustment of any direction while supporting the body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head device provided in a magnetic tape drive device, and particularly relates to an improvement of a magnetic head device equipped with an azimuth/tilt adjustment mechanism.

[Conventional technology]

A numerical magnetic tape drive device includes a drive means for feeding the magnetic tape, and a magnetic head device for reading/writing the magnetic tape being fed.

If the magnetic head of the magnetic head device is tilted with respect to the magnetic tape, it will not be possible to write/write reliably, so the alignment accuracy between the magnetic head and the magnetic tape (
Parallel alignment accuracy) must be sufficiently high. Therefore, some conventional magnetic head devices include an azimuth adjusting means for adjusting the horizontal inclination of the magnetic head in a plane parallel to the surface of the magnetic tape, and an azimuth adjustment means for adjusting the inclination of the magnetic head in the horizontal direction in a plane perpendicular to the surface of the magnetic tape. It is also equipped with a tilt adjustment means for adjusting the tilt in the front-back direction.

FIG. 5 is a perspective view showing a conventional magnetic head device 100 equipped with such readjustment means. As shown in the figure, a main body 102 of a magnetic head device 100 equipped with a magnetic head 101 has one corner close to the magnetic tape T attached to a base 10 by a fixing screw 104 via a compression coil spring 103.
It is attached to 5. The other corner of the main body 102 on the side closer to the magnetic tape T is connected to the base 10 by an azimuth adjustment screw 106 via a compression coil spring 103.
It is attached to 5. A third corner of the main body 102, which is located in a direction perpendicular to the running direction of the magnetic tape T when viewed from the fixing screw 104, is attached to the base 105 with a tilt adjustment screw 107 via a compression coil spring 103. .

In the above configuration, the azimuth adjustment screw 106
and the base 1 by turning the tilt adjustment screw 107.
By adjusting the inclination of the main body 102 with respect to 05 in two directions, the magnetic head 101 of the main body 102 and the magnetic tape T
It is possible to improve the alignment accuracy.

(Problems to be Solved by the Invention) According to the conventional magnetic head device 100 described above, the main body 1
Fixed screw 104 supporting 02 and azimuth adjustment screw 1
06 and the tilt adjustment screw 107 are tilted in the left-right direction as shown in FIG. 6 by the force applied during adjustment or tape running.

This caused the problem that the main body 102 would wobble and the azimuth and tilt would change.

The present invention has been made to solve the above problems, and is a novel mechanism devised to prevent the magnetic head or the body to which it is attached from wobbling and to prevent changes in the azimuth and tilt of the magnetic head with respect to the magnetic tape. The object of the present invention is to provide a magnetic head device equipped with the following.

[Means for Solving the Problems] A magnetic head device of the present invention has a main body equipped with a magnetic head, and includes an azimuth adjustment means for adjusting the horizontal inclination of the magnetic head with respect to the tape, and an azimuth adjustment means that adjusts the tilt of the magnetic head with respect to the tape. A magnetic head device, which is attached to the main body or base via a tilt adjustment means for adjusting the longitudinal inclination of the magnetic head, the attitude of the magnetic head being freely adjustable along the left-right direction and the front-rear direction with respect to the tape. The present invention is characterized by comprising a position fixing means for supporting the main body with respect to the base so that the following is achieved, and a connecting means for coupling the main body to the base.

[For production]

The main body equipped with magnetism is supported by a position fixing means that can follow the movement in the azimuth/tilt adjustment direction.
Furthermore, since it is connected to the base by a connecting means, there is no wobbling of the main body, and the azimuth/tilt adjusting means will not tilt.

(Example) A first embodiment of the present invention will be described with reference to FIG.

A magnetic head device 2 is mounted on a base 1, which is a stationary part of the magnetic tape drive. This magnetic head device 2 has a rectangular plate-shaped main body 3 attached to the base 1 and a magnetic head 4 provided on the upper surface of the main body 3. The main body 3 is attached to the heel 1 so that one corner near the magnetic tape T on which the magnetic head 4 reads/writes can be adjusted via a compression coil spring 5 with an azimuth adjustment screw 6. . Further, a diagonal corner of the main body 3 when viewed from the azimuth adjustment screw 6 is attached to the base 1 via a compression coil spring 5 so as to be freely adjustable by a tilt adjustment screw 7.

The other corner of the main body 3, which is the side closer to the magnetic tape T, is connected to the base 1 by a fixed leaf spring 8 as position fixing means. The fixed leaf spring 8 has fixed pieces 9 at both ends, and a flexible part 10 between them. A guide hole 11 and a fixing hole 12 are formed in each fixed piece part 9 9 , and a guide pin 13 on the base 1 and a guide pin 14 on the main body 3 are connected to each guide hole 11 of each fixed piece part 9 , 9 . .11
are engaged with each other. And two fixing screws 15
．． 15 are inserted through each fixing hole 12.12 and screwed into the upper surface of the base 1 and the main body 3, respectively. With the above configuration, the main body 3 of the magnetic head device 2 is supported at a predetermined position with respect to the base 1, and the flexible portion 1o of the fixed plate spring 8 adjusts the positions of the azimuth adjustment screw 6 and the tilt adjustment screw 7. It will be located almost at the right angle part of the right triangle with two points. As a result, during azimuth and tilt adjustment, the fixed plate spring 8 is elastically deformed in both directions at the flexible portion 10 according to the movement of the main body 3.

Next, the main body 3 of the magnetic head device 2 is connected to the base 1 near the tilt adjustment screw 7 by a steady plate spring 16 serving as a connecting means. This steady rest plate spring 16 has fixed pieces 17.17 at both ends fixed to the main body 3 and base 1 by fixing screws 18.18, and is strong against tension in the longitudinal direction, but is strong against tension in other directions. The magnetic head device 2 can be bent.
rotation within the plane of the main body 3.

Next, the operation of the above configuration will be explained.

The main body 3 is supported in a predetermined position by a fixed leaf spring 8, and is connected to the base 1 by a steady rest leaf spring 16, so that the main body 3 on which the magnetic head 4 is mounted is always stable in any posture. It is stable and does not wobble.

Here, if the alignment between the running magnetic tape T and the magnetic head 4 is poor, the attitude of the main body 3 is adjusted by appropriately rotating the azimuth adjustment screw 6 and the tilt adjustment screw 7.

The flexible portion 10 of the fixed plate spring 8 is located near the intersection of the center axis of the swing of the main body 3 during azimuth adjustment and the center axis of swing of the main body 3 during tilt adjustment.
It can be flexed to accommodate adjustments in either direction while supporting it. During this adjustment, the main body 3 is stable and does not wobble, so the azimuth adjustment screw 6 and the tilt adjustment screw 7 do not tilt, allowing reliable and accurate azimuth/tilt adjustment.

Next, a second embodiment of the present invention will be described with reference to FIGS. 2 to 4.

Like the first embodiment, this embodiment also relates to a magnetic head device 20 provided in a magnetic tape drive.

The base 21, which is a fixed part of the magnetic tape drive, includes
A hole 22 is formed in the attachment that passes through the top and bottom. A magnetic head device 20 having a diameter smaller than the inner diameter of the hole 22 is installed inside the hole 22 . The magnetic head device 20 is attached to a base 21 with an azimuth adjustment screw 24 and a tilt adjustment screw 25 via compression coil springs 23, 23. The main body 26 of the magnetic head device 20 is provided with a magnetic head 28 that is movable up and down using a linear guide 27 as a guide, and a motor 31 that drives the magnetic head 28 up and down by the action of a feed screw 29 and a nut 30. It is being That is, by rotating the motor 31, the magnetic head 28 is moved to a plurality of tracks on the magnetic tape T.
can be positioned.

The main body 26 of the magnetic head device 20 has a fixed plate spring 32.
and is attached to the base 21 by a steady rest plate spring 33. The structure and attachment of the fixed leaf spring 32 and the steady rest leaf spring 33 are the same as in the first embodiment.

Even in the above configuration, the same effects as in the first embodiment can be obtained.

(Effects of the Invention) According to the present invention, in a magnetic head device having an azimuth/tilt adjustment means, the main body of the magnetic head device can be positioned with respect to the base by means of fixing the position and connected by a connecting means, so that the following can be achieved. Effects can be obtained.

(1) Wobble of the magnetic head device body can be prevented.

(2) Changes in azimuth/tilt due to tilting of the screw, which is the azimuth/tilt adjusting means, can be prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a first embodiment of the invention, FIG. 2 is a plan view showing a second embodiment of the invention, and FIG. 3 is a partial sectional view of the same embodiment as seen from the front. FIG. 4 is a partial sectional view of the same embodiment as seen from the right side, FIG. 5 is a perspective view of a conventional magnetic head device, and FIG. 6 is a conventional magnetic head device in which the magnetic head is FIG. 2 is a cross-sectional view illustrating that the azimuth adjustment screw and the like are tilted. 1.21- Base, 2.20- Magnetic head device, 3.26- Main body, 4.28- Magnetic head, 6.24- Azimuth adjustment screw as azimuth adjustment means, 7.25 - tilt adjustment screw as tilt adjustment means, 8.32 - fixed leaf spring as one position fixation means, 16.
33-- Steady rest plate spring as a connecting means.

Claims (1)

[Claims] The main body includes a main body including a magnetic head, and includes an azimuth adjusting means for adjusting the horizontal inclination of the magnetic head with respect to the tape, and a tilt adjusting means for adjusting the longitudinal inclination of the magnetic head with respect to the tape. a magnetic head device in which the magnetic head is attached to a base, position fixing means for supporting the main body with respect to the base so that the attitude of the magnetic head can be freely adjusted in the left-right direction and the front-back direction with respect to the tape; A magnetic head device comprising: connecting means for connecting a main body to the base.