JPS6235142Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a magnetic head support stand applicable to a compact cassette tape recorder.

Conventionally, a tape guide separate from the magnetic head mounting bracket was attached to the magnetic head to align the tape and the magnetic head, or a tape guide section, magnetic head mounting section, and support section were integrated. In some cases, a magnetic head is attached to a magnetic head support stand formed by a conventional magnetic head via a spacer, and the height of the magnetic head relative to the support part is adjusted by changing the thickness of the spacer.

FIG. 1 shows an example of the former, in which a mounting bracket 2 having an L-shaped cross section and a tape guide 3 having a guide groove 3a are attached to a magnetic head 1 so that they can be adjusted independently using screws 4 and 5. The magnetic head 1 and tape guide 3 are vertically adjustable by means of a long hole 3b. The mounting bracket 2 is then attached to the device fixing part with screws 6.

FIG. 2 shows an example of the latter.
A tape guide section 13 having a guide groove 13a is formed integrally with the support base 12, and the magnetic head 1 is attached to this support base 12 with screws 8 and 9 via a spacer 7. By adjusting the thickness of the spacer 7, the vertical position of the magnetic head 1 relative to the tape guide section 13 and the support section can be adjusted.

Furthermore, although not shown, there has also been proposed a device in which the height position of the magnetic head relative to the tape guide section can be finely adjusted using a screw.

However, the mounting bracket 2 shown in Figure 1 is
and the tape guide 3 must be adjusted separately, which requires many adjustment steps and is difficult to align.The one shown in FIG. 2 requires the preparation of many spacers of different thicknesses. Moreover, the man-hours required to replace them were a factor that hindered productivity.

In addition, the mounting angle (tilt angle) of the magnetic head 1 is determined by the machining accuracy of the head itself and the support base, and it is almost impossible to adjust the angle shown by θ (usually 90°) in Figure 2. It was hot.

This adjustment is performed on high-end tape recorders.
This is essential for improving the performance of the device by improving the adhesion between the head surface of the magnetic head and the running tape. In the example shown in Figure 2, it is possible to make adjustments by preparing a large number of spacers with different thicknesses and inclinations, but it is virtually impossible to make such complicated adjustments in the mass production process. .

This idea was made in view of the above points,
To provide a magnetic head support with a simple structure that allows not only the height adjustment of the magnetic head with respect to the support part but also the swing angle adjustment with respect to the support.

Hereinafter, an embodiment of this invention will be explained with reference to FIG. 3 of the attached drawings, and the same parts as in the conventional example shown in FIGS. do.

A planar magnetic head mounting part 12a, an L-shaped support part 12b, and a tape guide part 13 having a guide groove 13a are integrally formed on a metal support base 12, and the tape guide part 13 has a flat magnetic head mounting part 12a, an L-shaped support part 12b, and a guide groove 13a. The cutout portions 14b each having an integrally formed spring piece 14a bent inwardly are formed symmetrically, and each cutout portion 14
A screw hole 15 is provided at the symmetrical center of the base of b.

On the other hand, if a screw hole corresponding to the screw hole 15 is provided on the upper surface 1a of the magnetic head 1, and the magnetic head 1 is screwed onto the support base 12 using the magnetic head mounting screws 8 and 9 passing through the screw hole 15, The magnetic head 1 is fixed in a downwardly pressed state by a spring piece 14a.

Here, if the screws of the mounting screws 8 and 9 are sufficiently thickened, for example, screw 9 of the mounting screws 8 and 9 can be tightened more than screw 8.
The front spring piece 14a is deformed more than the rear, and the magnetic head 1 is shifted upward to the position θ shown in FIG.
By tightening the screw 8 more than the screw 9, the magnetic head 1 can be shifted downward and θ can be increased.

Also, if screws 8 and 9 are tightened equally, θ
The magnetic head 1 is displaced up and down while keeping it constant, and the height of the magnetic head 1 increases in proportion to the magnitude of the clamping force. Therefore, the position relative to the support portion 12b can be adjusted freely.

As mentioned above, according to this invention, since the magnetic head support stand itself has spring properties, the man-hours for assembling and adjusting the magnetic head can be significantly reduced without increasing the number of parts. .

In addition, since the spring pieces formed on the support base are placed symmetrically on the front and rear sides, it is possible not only to adjust the height of the magnetic head relative to the support part, but also to finely adjust the swing angle. It has the excellent advantage of being able to optimally adjust the position of the running tape without requiring a high degree of precision.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional magnetic head installed. FIG. 2 is a perspective view showing a state in which a magnetic head is mounted on a conventional magnetic head support with a tape guide. FIG. 3 is a perspective view showing a state in which the magnetic head is mounted on the magnetic head support base according to this invention. DESCRIPTION OF SYMBOLS 1...Magnetic head, 8, 9...Magnetic head mounting screw, 12...Support stand, 13...Tape guide part, 14a...Spring piece, 14b...Notch part, 15
...Screw hole.

Claims (1)

[Scope of utility model registration request] In a metallic magnetic head support stand that integrates a planar magnetic head mounting part and a support part, a notch in which a spring piece bent inward is integrally formed at the front and rear of the magnetic head mounting part, respectively; The height of the magnetic head relative to the support part can be adjusted by means of magnetic head mounting screws that are formed symmetrically with respect to the screw holes provided at each base and pass through the respective screw holes, and the height of the magnetic head relative to the support part can be adjusted. A magnetic head support stand characterized in that the tilting angle can also be adjusted.