JPS62189619A - Magnetic head - Google Patents

Abstract

PURPOSE:To improve a reproduction characteristic and also to simplify the processing with a magnetic head by setting a connection part at a place close to a slider together with a sloping surface formed at the outside of the connection part and at the same time avoiding a case where a recording/reproducing core is protruded over the sloping surface. CONSTITUTION:A slider 1 contains the 1st groove 1a extended in the single direction and the 2nd groove 1b extended in the direction orthogonal to the groove 1a. The connection parts 1c are formed at both ends of the groove 1a together with the sloping parts 1e formed at the outside of the part 1c respectively. The length of a recording/reproducing core 2 is kept within the part 1e in the direction of the groove 1a. Thus the area of the core 2 exposed over the rubbing face can be reduced, therefore, the externally induced noise and the rubbing noise can be reduced. In such a way, the reproduction properties of a magnetic head is improved. In addition, it is not required to set a special angle by forming previously a sloping surface. In such a way, a special tool nor a special working process for angle formation is omitted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head for a digital i-recording device, such as a flexible disk.

[Prior art]

Conventionally, this Yuzu magnetic head has had a configuration as shown in Figs. 5 and 6, which is a perspective view of the conventional magnetic head, and 5 is made of ceramics, non-magnetic ferrite, etc. As shown in the exploded perspective view of FIG.
A second group of grooves is formed perpendicularly to the groove 5a and the first groove, into which a pair of erasing cores 7.7 connected by a non-magnetic material 1O are incorporated. The recording/reproducing core 6 includes a connecting portion 5c formed at the end of the first groove 5a of the slider 5;
The pair of erasing cores 7.7 are arranged on both sides of the recording/reproducing core 6, and the recording/reproducing core 6 and the erasing core are arranged on both sides of the recording/reproducing core 6. 7.7 and the slider 5 are fixed by a non-magnetic material 8 made of glass or the like. At this time, an erase gap 7a with a predetermined interval is formed between the side surface of the recording/reproducing core 6 and the erase core 7.7. To assemble these components of the magnetic head, first, the recording/reproducing core 6 and the erasing core 7.7 are sequentially inserted into the first groove and the second groove 5b of the slider 5. At this time, the recording/reproducing core 6 is connected to the slider connecting portion 5C.
The sliding surface is positioned at , the erasing core 7 is positioned at the second groove 5b, the erasing core 7 is positioned at the second groove 5b, and then, as shown in FIG. It is pressed against and positioned. At this time, the lengthwise dimension of the first groove 5a of the slider 5 and the lengthwise dimension of the sliding surface of the recording/reproducing core 6 are made equal. After the recording/reproducing core 6 and the pair of erasing cores 7.7 are accurately positioned, they are fixed together with a non-magnetic material 8 such as glass, and the front surface of the slider (sliding contact with a medium such as a flexible disk) is fixed. Angle shaping 9 is applied to the surface) by ωf polishing, lapping, etc., and further polishing is performed to the sliding contact surface BB' of the surface portion of the slider m1 to form a magnetic head.

[Problem that the invention seeks to solve]

However, in the structure of a conventional magnetic head, as shown in FIGS. 5 and 6, the positioning of the recording/reproducing core 6 to the slider 5 is carried out by attaching the shoulder 6b of the 5-pin 8 ancient core 6 to the connecting portion of the slider 5. , 6b, the recording/reproducing core 6 having a length approximately equal to the length of the first groove 5a of the slider is exposed between the sliding surfaces. Therefore, during reproduction from between the sliding surfaces of the recording/reproducing core 6, externally induced noise and sliding noise are induced, deteriorating the reproduction characteristics. Also, in order to prevent the medium from getting caught when inserting and removing the medium, the corner l# of the slider 5 is
A special jig is required to perform shadow formation by polishing, lapping, etc. Furthermore, since the recording/reproducing core 6, the slider 5, and the non-magnetic material 8 have different hardnesses, when the polishing area becomes large, the gap between the sliding surfaces increases. A difference occurs in the surface roughness of the slider 5, which makes it easy to form a step and cause a decrease in yield.
A recording/reproducing core 6 or WJ with a length equal to the length of the groove 5a of
Since the recording/reproducing core 61 as shown in Fig. B is used, the scale is not complicated in shape, and the processing steps involve contact and separation, and moreover, a large amount of material is required. There are problems such as.

[Means for solving problems]

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and provides a magnetic head with good performance, which can easily take measures against noise in the magnetic head and improve the yield in the manufacturing method. A slider made of a non-magnetic sintered body is used in the portion that comes into sliding contact with the slider, and this slider has a first groove extending in one direction and a second groove extending perpendicularly thereto, and further has a first groove extending in one direction and a second groove extending perpendicularly thereto. In a magnetic head having a structure in which connecting portions are provided at both ends of the groove, and the shoulders of the recording/reproducing core are abutted against the connecting portions for positioning, the connecting portion is brought close to the center of the slider, and the connecting portion is placed outside the connecting portion. A magnetic head is characterized in that an inclined surface is formed and the recording/reproducing core is prevented from protruding from the inclined surface.

[Embodiments of the invention]

Examples according to the present invention will be described below based on Figures 1 to 4. FIG. 1 is a perspective view of the magnetic head of the present invention, FIG. 2 is a T-print master view showing the assembled state, FIG. 3 is a cross-sectional view of the lower part, and FIG. 4 is a diagonal diagram showing the recording/reproducing core of the present invention. It is.

In the figure, l is a slider made of a sintered body such as ceramics or non-magnetic ferrite, and the slider 1
As shown in FIG. Connecting part 1
A pair of erasing cores 3 are connected to a recording/reproducing core 2 with a recording gap 2a formed in advance and a pair of erasing cores 3 connected by a non-magnetic material 10. are inserted into the first groove 1a and the second groove 1b, which are perpendicular to each other. 1d is an inclined groove formed on the back surface of the slider. The recording/reproducing core 2 is connected to the connecting portion 1c.
The position is determined by pushing the shoulder 2c (shown in FIG. 4) onto the shoulder. Furthermore, a pair of erasing cores 3% 3 are arranged on both sides of the recording seedling core 2, and the positioning of the recording/reproducing core 1 and the erasing core 3.3 is as shown in FIG.
．． The recording/reproducing core 2 is pressed against the position 3 and the position 1 is determined.

The slider 1, the recording/reproducing core 2, and the erasing core 3.3 are fixed by a bonding material 4 made of a non-magnetic material such as glass. Furthermore, when the front side of the slider 1 (sliding surface A-A' with the medium) is polished, the recording/reproducing core 2 is removed from the first groove 1a of the slider 1 by a shoulder portion 2C as shown in FIG. The recording/reproducing core 2 has a structure that is not exposed from the slider 1.

To explain how to assemble the above components, first, the recording/reproducing core 2 and the erasing core 3 are sequentially inserted into the first groove 1a and the second groove 1b of the slider 1. At this time, the pair of erasing cores 3.3 are fitted into the second grooves 1b and positioned accurately, and the legs of the recording/reproducing core 2 are inserted into the grooves (not shown) formed in the erasing core 3 in advance. section is inserted. Thereafter, the stepped portion 2b of the recording/reproducing core 2 is removed from the erase core 3.
．． 3 to position the recording/reproducing core 2 and erasing core 3. Thereafter, the bonding material 4 such as glass is melted into the inclined groove 1d of the slider 1 to bond the slider 1, the recording/reproducing core 2, and the erasing core 3.3. Finally, the front surface of the magnetic head assembly (the surface that makes sliding contact with the medium) is polished to the sliding contact surface AA' shown in FIG. 3, thereby removing the connecting portion IC of the slider 1 and completing the magnetic head.

〔effect〕

As diagonally above, in the present invention, a first groove 1a extending in one direction and a second groove 1b extending perpendicularly thereto are formed in the slider 1, and both ends of the first groove 1a are formed in the slider 1. By forming a connecting part IC and an inclined part 1e on the outside of this connecting part IC, and making the length in the direction of the first groove 1a of the recording/reproducing core 2 not protrude from the inclined part 1e, the recording/reproducing core 2 Since the area exposed to the sliding contact surface can be reduced, external rust induction noise and sliding noise can be reduced, and playback characteristics can be improved. Further, by forming the inclined surface in advance, there is no need to form a special angle, and therefore no special jig or processing process is required for forming the angle. Furthermore, since the polishing area is smaller, differences in the surface roughness of the sliding contact surface are less likely to occur, which improves yield.Furthermore, since the sliding contact surface is small, frictional resistance can be reduced and the core can be made smaller. Therefore, it has remarkable effects such as reducing the amount of materials used.

[Brief explanation of drawings]

1 to 4 are views according to the present invention, where FIG. 1 is a perspective view of the magnetic head of the present invention, FIG. 2 is a perspective view similarly showing an assembled state, and FIG. 3 is a perspective view similarly showing an assembled state. A partial sectional view, FIG. 4 shows perspective teeth of the recording/reproducing core of the present invention, and FIGS.
The figures relate to a conventional magnetic head. FIG. 5 is a perspective view of the conventional magnetic head, FIG. 6 is an exploded perspective view showing the established state, and FIG. 7 is a sectional view of the main parts similarly showing the established state. , FIG. 8a%b is an fA view of a conventional magnetic core. 1...Slider 1a...First groove 1b...8+42 groove IC...Connecting portion 1e...Slanted surface 2...Recording/reproducing core addition...Recording/reproducing gap 3... Erasing core 4... Binding material patent applicant Alps Electric Co., Ltd. No. 1 Fig. 3 Fig. 4 Ur Fig. 7 9 Two series? In official text (method) % formula % 1. Indication of the case 2. Name of the invention Magnetic head 3. Person making the amendment Relationship to the case Patent applicant address 1-7 Yukitani Otsuka-cho, Ota-ku, Tokyo 145 Name
AO9 Alps Electric Co., Ltd. March 31, 1986 (Delivery date: April 22, 1986) 5. Target of amendment ``Il! Contents (1) Book 1, page 9, lines 5 to 6, 1 Figure 8a,
b is a perspective view of a conventional magnetic core. ” and “8th
The figure is a perspective view of a conventional magnetic core. ” he corrected.

Claims (1)

[Claims] A first groove extending in one direction of the slider and a second groove extending perpendicularly thereto are formed, connecting portions are provided at both ends of the first groove, and a recording/reproducing core is attached to the connecting portion. In a magnetic head whose structure is such that positioning is performed by abutting the shoulders of the
A magnetic head characterized in that the connecting portion is brought close to the center of the slider, an inclined surface is formed on the outside of the connecting portion, and the recording/reproducing core is not protruded from the inclined surface.