JPH03216875A - Magnetic head positioning structure - Google Patents

Abstract

PURPOSE:To position even the magnetic head where the core does not project from the slider by bending magnetic head positioning projecting pieces under a gimbals horizontal surface. CONSTITUTION:A rectangular window part 5 is formed in the center of a gimbals 1, and magnetic head positioning projecting pieces 15A and 15B and a magnetic head positioning projecting piece 15C are formed in one longer side and one adjacent shorter side of the rectangular window part 5 respectively as one body. Projecting pieces 15A to 15C are bent at a certain angle under a gimbals horizontal surface P. Since magnetic head positioning projecting pieces are formed under the gimbals horizontal surface by bending, core side faces of the magnetic head is brought into contact with projecting pieces to position the magnetic head though the magnetic head is the thin type where the core does not project from the slider.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a positioning structure for a magnetic head attached to a gimbal such as a floppy head.

(Prior Art) A conventional positioning structure of a magnetic head will be explained with reference to FIGS. 7 to 9. In these figures, the gimbal 1 is a thin plate of elastic metal such as stainless steel or phosphor bronze, and the punched holes 2 and 3 make it difficult for shocks and vibrations from the peripheral support parts to be transmitted to the central part where the magnetic head is attached. There is. Attachment holes 4 are formed at the four corners of the peripheral support portion. and,
A rectangular window 5 is formed in the center of the gimbal 1, and one long side of the rectangular window 5 has magnetic head positioning protrusions 6A and 6B as shown in FIG. A protrusion 6C for positioning the magnetic head is integrally formed. However, the orientation of each protruding piece 6A, 6B, and 6C coincides with the horizontal plane P of the gimbal.

On the other hand, a floppy head 10 as a magnetic head has a slider 12 fixedly integrated with a core 11 having a winding (not shown), and as shown in FIG. A recording/reproducing gap Grw on the moving surface and an erasing gap G located on both sides thereof
It has e. Note that the arrow X in FIG. 10 indicates the running direction of the floppy disk.

To attach the floppy head 10 to the gimbal 1, the core 11 protruding upward from the slider 12 is fitted into the rectangular window 5, and the two sides of the core 11 are pressed against the protrusions 6A, 6B, and 6C as shown in FIG. Let me touch you! This is done by fixing it in place with adhesive, etc. As a result, the gaps Grw, Ge and the track center (center line Z in FIG. 10) are positioned with respect to the gimbal reference line (a line connecting the centers of the mounting holes, one side edge of the gimbal, etc.).

(Problem to be Solved by the Invention) Incidentally, the conventional positioning structure of a magnetic head requires that the core 11 of the magnetic head protrudes upwardly than the slider 12. Due to the demand for miniaturization (thinness), sliders whose cores do not protrude from the slider are increasingly being used. In this case, the protrusion 6A. which simply coincides with the gimbal horizontal plane. 6B
, 6C had the problem that the magnetic head could not be positioned.

In view of the above points, it is an object of the present invention to provide a magnetic head positioning structure that allows positioning of the magnetic head even in the case of an elliptical magnetic head in which the core does not protrude from the slider.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides magnetic head positioning protrusions that are bent below the horizontal plane of the gimbal on two adjacent sides of a rectangular window formed on the gimbal. formed by
The protruding piece is configured to abut the side surface of the core of the magnetic head.

(Function) In the magnetic head positioning structure of the present invention, since the magnetic head positioning protrusion is bent below the horizontal plane of the gimbal, this is not the case in the case of a thin magnetic head in which the core does not protrude from the slider. However, the core side of the magnetic head can be positioned by bringing it into contact with the protrusion. Therefore, when positioning and attaching the magnetic head to the gimbal, a special positioning device such as a microscope is not required, and the positioning work becomes extremely easy.

(Example) Hereinafter, an example of a magnetic head positioning structure according to the present invention will be described with reference to the drawings.

An embodiment of the present invention will be explained with reference to FIGS. 1 to 3. FIG. In these figures, a rectangular window 5 is formed in the center of the gimbal 1, magnetic head positioning protrusions 15A and 15B are formed on one long side of the rectangular window 5, and protrusions 15A and 15B are formed on one adjacent short side of the rectangular window 5. A projection piece 15C for positioning the magnetic head is integrally formed. However, each protrusion 15A, 15B. 15C is bent at a certain angle (for example, 45 degrees) below the gimbal horizontal plane P. The other parts of the gimbal 1 are as explained in FIG.

On the other hand, as shown in FIG. 3, a thin floppy head 20 as a magnetic head has a slider 22 fixedly integrated with a core 21 having a wire wound thereon. It has a structure that does not protrude from the surface.

As shown in FIG. 10, this floppy disk 20 also has a recording/reproducing gap Grw on the sliding surface facing the floppy disk serving as a magnetic recording medium, and an erasing gap Ge located on both sides of the recording/reproducing gap Grw.

Then, a thin floppy head 20 for the gimbal 1
The attachment is carried out by positioning the two adjacent side surfaces of the core 21 in contact with the three projecting pieces 15A, 15B, and 15C as shown in FIG. 2, and then fixing them with adhesive or the like. As a result, the gap Grw, G
e and the track center (center line Z in FIG. 10) are positioned.

FIG. 4 shows a first modification of the protrusion that can be formed on the gimbal 1 according to the present invention. In this case, the protruding piece 30 integrally formed on the rectangular window portion 5 is bent perpendicularly to the horizontal plane P of the gimbal.

FIG. 5 shows a second modification of the protrusion that can be formed on the gimbal 1 according to the present invention. In this case, the projecting piece 31 formed integrally with the rectangular window portion 5 is bent perpendicularly to the horizontal plane P of the gimbal and forms two sides of a prism.

FIG. 6 shows a third modification of the protrusion that can be formed on the gimbal 1 according to the present invention. In this case, the projecting piece 32 formed integrally with the rectangular window portion 5 is bent perpendicularly to the horizontal plane P of the gimbal and has a curved surface forming part of a cylinder.

In the case of the protruding pieces shown in FIGS. 4 to 6, positioning is also possible by contacting the core of a thin magnetic head having a core structure that does not protrude from the slider. Furthermore, in the case of FIGS. 5 and 6, there is an advantage that the projecting pieces 31 and 32 can be reliably formed perpendicular to the gimbal horizontal plane P (by pressing, drawing, etc.).

(Effects of the Invention) As explained above, according to the magnetic head positioning structure of the present invention, when the magnetic head is attached to a gimbal, positioning is possible even with a magnetic head whose core does not protrude from the slider, and the magnetic head It can be adapted to thinner designs. Further, a special positioning device such as a microscope is not required when positioning the magnetic head on the gimbal, and the positioning work is extremely simple.

[Brief explanation of drawings]

FIG. 1 is an enlarged plan view showing one embodiment of a magnetic head positioning structure according to the present invention, FIG. 2 is an enlarged side sectional view of the same, and FIG.
4 is an enlarged sectional view showing a first modified example of the protruding piece that can be formed on the gimbal in the present invention; FIG. 5 is an enlarged perspective view showing a second modified example of the protruding piece that can be formed on the gimbal in the present invention; 6 is an enlarged perspective view showing a third modified example of the protruding piece, FIG. 7 is a plan view showing the positioning structure of a conventional magnetic head, FIG. 8 is a front view of the same, and FIG.
The figure is an enlarged plan view of the same, and FIG. 10 is an enlarged view showing the sliding surface of the magnetic head that faces the magnetic recording medium. 1... Gimbal, 5... Square window, 6A, 6B, 6
C, 15A, 15B, 15C, 30.31.32... protrusion, 10.20... floppy head, 11,21.
...Core, 12.22...Slider, Gr-...Recording/reproduction gap, Ge...Erasing gap, P...Gimbal horizontal plane.

Claims (1)

[Claims] (1) On two adjacent sides of the square window formed on the gimbal,
A magnetic head positioning structure characterized in that a magnetic head positioning protrusion is formed by being bent below a horizontal plane of a gimbal, and a side surface of a core of the magnetic head is brought into contact with the protrusion.