KR920002115Y1 - Head positioning device for vtr - Google Patents

Abstract

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Description

Head mounting device of tape recorder

1 is an exploded perspective view of the head mounting apparatus of the present invention tape recorder.

2 is a plan view of the assembled state of the head mounting apparatus of the present invention tape recorder.

3 is a front view as seen in the direction of the arrow from III of FIG. 2;

Figure 4 is a second state and the same state diagram as a second embodiment of the present invention.

FIG. 5 is a front view of FIG. 4 as viewed in the direction of the arrow from V. FIG.

Figure 6 is a third state and the same state diagram as a third embodiment of the present invention.

7 shows a head mounting apparatus of a conventional tape recorder, and FIG.

* Explanation of symbols for main parts of the drawings

2: sliding plate 8: leaf spring

8a: bend 8b: bend

11: engagement recess 12: magnetic head

13: Head fixing part 16: Adjustment screw

18: granular part wall (stopper part) 19: stopper protrusion (stopper part)

20: stopper pen (stopper part)

The present invention relates to a head mounting apparatus of a tape recorder that is capable of adjusting the height and height of the magnetic head.

As the head mounting apparatus of the conventional tape recorder, what was shown in FIG. 7 was known.

That is, one end of the leaf spring c is placed on the sliding plate a which is movable between the operating position and the stop position via the space b, and the head fixing plate e having the magnetic head d fixed on the one end of the leaf spring c is placed. Then, the fixing screw f is screwed into the screw hole g of the sliding plate a through the one end of the head fixing plate e and the leaf spring c and the space b. Further, the adjustment screw h is screwed into the screw hole i of the sliding plate a through the other ends of the head fixing plate e and the leaf spring c, respectively. The azimuth adjustment of the magnetic head d is performed by rotating the adjustment screw h. Furthermore, during the seventh time j is a tape guide mounted on the sliding plate a.

In the conventional head mounting apparatus as described above, since the adjustment screw h is rotated on the other end side of the head fixing plate e to adjust the magnetic head d, the height position of the magnetic head d changes with the azimuth adjustment. do. Therefore, azimuth adjustment cannot be performed without changing the height position of the magnetic head d, and there is a problem that crosstalk occurs. In addition, if the height position of the magnetic head d is adjusted by the adjustment screw h, an unnecessary azimuth change is caused, and the solution is desired.

The present invention was devised in view of the above circumstances, and an object thereof is to provide a head recorder of a tape recorder capable of freely adjusting the height and height of the magnetic head by a simple configuration.

The head mounting apparatus of the tape recorder of the present invention for achieving the above object is arranged by abutting the bent portion on a slidable sliding plate between an operation position and a stop position, and arranging the leaf spring bent at the center portion, and both ends of the leaf spring. The head fixing plate which fixed the magnetic head at the time of floating is mounted, and the adjustment screw is attached to the said sliding plate through each end part of this head fixing plate and each end of the said leaf spring.

Further, the adjustment screw penetrating portion of the leaf spring may be formed to be curved to the side of the head fixing plate.

Moreover, what is necessary is just to provide the said sliding plate with the stopper part which prohibits the displacement of the said leaf spring to the sliding plate moving direction.

Moreover, what is necessary is just to form integrally with the tape guide member made from synthetic resin which fixed the said stopper part on the said sliding plate.

Since the adjustment screw is rotated on both ends of the head fixing plate to adjust the magnetic head, the height position of the magnetic head does not change even if the azimuth adjustment is performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is an exploded perspective view of a head mounting apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of the assembled state, and FIG. 3 is a front view seen in the direction of the arrow from III of FIG. 2, wherein 1 is a tape recorder. A sliding plate (head mounting plate) 2 is mounted on an upper surface thereof so as to be slidable between the operation position and the stop position in the directions of arrows A and B, and the sliding plate 2 is a spring 3. Is added to the stop position direction (arrow B direction).

The tape guide 4 is provided in the upper surface of the sliding plate 2. The tape guide 4 has a synthetic resin body 5 formed by integrally connecting the lower ends of both side walls 5a and 5a with a connecting wall 5b, and the tape guides on both side walls 5a and 5a. Each of the dragon protrusions 5c protrudes integrally.

The tape guide 4 is fixed to the sliding plate 2 by mounting screws 6 which respectively penetrate both side walls 5a and 5a of the body 5. A rectangular through hole 7 is provided in the connecting wall 5b of the body 5. The leaf spring 8 is provided on this connecting wall 5b. This leaf spring 8 has a substantially V-shaped bent portion 8a at the center portion, and has curved surfaces 8b and 8b that are curved surfaces at both ends. Long holes 9 are drilled in the curved surfaces 8b and 8b in the transverse direction (the direction orthogonal to the moving direction of the sliding plate 2).

The bent portion 8a of the leaf spring 8 is abutted on the sliding plate 2 via the through hole 7 of the connecting wall 5b of the main body 5 of the tape guide 4. The quadrangular engaging pieces 10 are integrally protruded from both side edges of the central portion of the leaf spring 8.

These engagement pieces 10 are respectively engaged with engagement indentations (stopper portions) 11 integrally formed at both ends of the central portion of the through hole 7 of the connecting wall 5b of the body 5.

Thereby, the movement to the sliding plate 2 moving direction (arrow A, B direction) of the leaf spring 8 is prohibited. Above the both ends of the leaf spring 8, the head fixing plate 13 which fixed the magnetic head 12 to the intermediate part was mounted.

The head fixing plate 13 has screw insertion holes 14 at both ends. The screw insertion holes 14 and 14 at both ends of the head fixing plate 13 and the leaf springs 8 are connected to the wall 5b of the body 8 of the tape guide 4 and the long holes 8c and 8c at both ends. The adjusting screws 16 and 16 are screwed into the screw holes 17 and 17 of the sliding plate 2, respectively, through the screw insertion holes 15 and 15 provided at both ends of the "

And by adjusting the rotation of the adjustment screw (6) (6) of both ends as necessary, the azimuth adjustment and height adjustment of the magnetic head 12 can be freely.

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

In addition, in this embodiment, the same code | symbol is attached | subjected and demonstrated in drawing about the same part as 1st Embodiment shown in FIG. 1 thru | or FIG. 3 mentioned above.

This second embodiment does not provide the engagement piece 10 in the leaf spring 8, and does not provide the through hole 7 in the connecting wall 5b of the body 5 of the tape guide 4. A point of contacting the bent portion 10 of the leaf spring 8 on the sliding plate 2 via the connecting wall 5b, and a granular portion wall (stopper portion) 18 bent on the sliding plate 2; And a pair of stopper projections (stopper portions) 19 and 19 are integrally protruded from both ends of one end of the connecting wall 5b of the body 5 of the tape guide 4, and these granular portion wall 18 and the stopper are integrally formed. By the projections 19 and 19, the point where the sliding plate 2 of the leaf spring 8 prevents displacement in the same direction is different from the first embodiment.

5 shows a third embodiment of the present invention.

In addition, in this embodiment, the same code | symbol is attached | subjected to drawing and demonstrated about the same part as 1st Embodiment mentioned above. In the third embodiment, the connection wall 5b of the body 5 of the tape guide 4 is not curved because the portions of the long holes (screw through portions) 9 at both ends of the leaf spring 8 are not formed. The sliding plate 2 of the leaf spring 8 by the stopper pin (stopper part) 20 formed by cutting off both side walls 5a and 5a from each other, and cut-out and standing in the sliding plate 2, without installing it. The point of preventing displacement in this moving direction is different from that of the first embodiment.

As described above, the head mounting apparatus of the tape recorder of the present invention arranges a leaf spring bent at the center portion by abutting the bent portion on a slidable sliding plate between an operation position and a stop position, The head fixing plate which fixed the head is provided, and each adjustment screw is screwed into the said sliding plate through each end of this head fixing plate and each end of the said leaf spring.

Therefore, the azimuth adjustment and the height adjustment of the magnetic head can be made simple with a simple configuration.

Claims (4)

The leaf spring, which is bent at the center portion, is arranged by abutting the bent portion on a slidable sliding plate between the operation position and the stop position, and the head fixing plate having the magnetic head fixed on both ends of the leaf spring is mounted. A head recorder of a tape recorder, wherein each of the adjustment screws is screwed through the sliding plate through each end of the leaf spring and each end of the leaf spring. The head mounting apparatus of the tape recorder according to claim 1, wherein the adjustment screw penetrating portion of the leaf spring is formed to be curved on the side of the head fixing plate. The tape recorder head mounting apparatus according to claim 1 or 2, wherein a stopper portion for prohibiting displacement of the leaf spring in the sliding plate moving direction is formed in the sliding plate. 4. The head mounting apparatus of a tape recorder according to claim 3, wherein the stopper portion is formed integrally with a tape guide member made of synthetic resin which is fixed on the sliding plate.