JPH03214409A - Magnetic head and production thereof - Google Patents

Abstract

PURPOSE:To improve the productivity of the head by disposing an erase core with inclination by as much as the azumuth angle with the joint surface of an erase slider block and a read/write slider. CONSTITUTION:The erase slider block 11' with the azumuth angle is formed by sticking a pair of the sliders 3 to both side faces of the erase core 10. The erase core 10 is disposed with the inclination with the erase slider block 11' with the azumuth angle of a rectangular shape. The gap 1a of the erase core 10 is formed in the direction orthogonal with the slider sticking surface of the erase core 10. As a result, the gap 1a has eventually the azumuth angle with the erase slider block 11' with the azumuth angle. The read/write block 21 is also formed by sticking a pair of the sliders 3 to both side faces of the read/write core 20 and the gap of the read/write core 20 is so formed as not to have the azumuth angle with the read/write slider block 21.

Description

[Detailed Description of the Invention] [Industrial field of film] The present invention relates to an '8i holder 1 used for a Flonovate desk 1, a live device, etc., and a method for manufacturing the same. do.

[Conventional 1 base 1] In high-g degree recording with a narrow Ganob length, a thick magnetic layer ζ is used for recording.・If you write overwrite after a while, you cannot completely erase the fortune-telling magnetic record.So, in such a case: As shown in Figure 5, just before read write head 2 A so-called 1-point adjustment is used, in which a 1-point adjustment lever 1 is placed and sandwiched between a pair of sliders 3 and 11.

First of all, therese \n1 is the second one.
・1. Directly erase the old magnetic records on the magnetic χ recording medium,
15" and read 1 and 2 on the erased magnetic recording medium.
Wright's \tsui 2 is a record. It's time for a one-day race like this.
Cap la of point 1: If this square is not attached,
When reproducing magnetic recording, the magnetic flux of the recording IS is also taken into the cap 1a of the erase/\tsu 1.1, and it is destroyed and cross 1. - It produces a jj. Therefore, by attaching an azimuth angle to the gap la of the erase l\tl as shown in the figure, the signal recorded by the read write l\note 2 through the gap 2a without an azimuth angle cannot be reproduced with this erase heel F'1. That's what I do.

In addition, high-density li! Attempt to combine air recording medium and low-density electric recording medium 14 into one head.
In this case, a so-called upper-lower fully compatible head is used. As shown in Figure 6, the second upper T completely compatible head is a REET-WRITE that rewrites high-density magnetic recording to REETRY L/ZURU N11G (metal-in-cap) L\SOTO7 and rewrites low-density magnetic recording to SOTO7. The head 8 and the tunnel erasers 1 and 9 placed immediately after are provided adjacent to each other, and these heads 7 to 9 are supported by the slider 3. In addition, M I G Hesoto 7 is made of an oxide magnetic material such as ferrite, and the cap part of the core is made of a 7i film of a metal magnetic material such as Senkust.This makes it a magnetic material with high coercivity. Capable of recording: magnetic and
＼Notote J5ru.

The above-mentioned tunnel Ishizuno\Soto 9 is a tunnel on both sides.
! It is either Ganob 9a whose canob width is currently controlled by 49 1J, or it is divided into two into 3 by the L/Ranok groove 0 1) in the center.
. . 8 erases only both sides of the recording track formed on the magneto-electric recording medium. 1: In case of t, is it ton? , Rui race゛・＼Noto 9's canopy ゛9,1 To trace the 9 self-recorded toranoku 1 by the full width of 1 or the canob 8d of Leet light head 8: Since there is no Kohana 1, the above 1 tail race/\tsu 1・There are almost no crosstalk problems. However, in the upper T rank complete compatibility/1t, both the high enrichment and low enrichment ['C
In order to obtain compatibility with ＼Noto, LEIT Lite ＼8, Ton Sai, Rui Lez Head 9 and M I G Head 7.
It is necessary to place the MIG'
＼Place a part of the winding (not shown) in the tunnel erase head 9 so that it protrudes into the magnetic path of the tunnel erase head 9.
No. Because it uses high-density magnetic recording media,
When the magnetic flux is emitted from this high-density magnetic recording, it is also taken into the gap 9.1 of the I-channel erase head 9, and is transmitted through the winding protruding into the magnetic path 2.
+C There is a risk of leakage to the 1st and 7th sides. Therefore, even in the case of complete upper-lower compatibility, the azimuth angle is set by 1 on the caps 9a of the tunnel erase l\tsu 1 and 9 as shown in the figure, and the M I G head 7 is inserted into the gap with no azimuth angle. The high-abundance fji% recording recorded by 7a cannot be reproduced by this tunnel erase head 9.

The advance erase head shown in FIG. 5 is manufactured by the following general method. First, as shown in FIG. 7(a), an erase core block 4 having a large number of gaps 1a divided by tracks fl11) and a large number of caps 2a divided by track grooves 2b are formed. Create a block 5 for the read/write core. This block 4 for the erase core is made of a ferromagnetic material and has a hook groove 11 formed therein in advance.
0 or 11J of tracks in advance on the other brox material 41 (/) joint surface made of ferromagnetic material. Si0
A Yayanob spacer film consisting of 2 etc. is deposited and set aside, and both flock materials -10. '41 is pasted together at this joint surface, heated, filled in a toranokko 11], etc., and fused and integrated using a low-melting point lath 6, thereby removing the material. Similarly, the front lock 5 for A is also made of a ferromagnetic material with the child 1 rank groove 21] being made of a ferromagnetic material. Alternatively, a canobus base B made of S i 02 or the like is deposited on the joint surface of the oil-side fluorochrome 51 made of a single ferromagnetic wire formed in advance by Toranota 21), and both ferromagnets are bonded. The low melting point glass 6 was heated by pasting the glass 50 and 51 together at this joint surface and filling the trunk groove 2b etc.
It is created by fusing and integrating the parts.

Next, the erase core block 4 and the read/write core block 5 are each sliced as shown in FIG. In that case, the erase core block 4 is sliced diagonally by the azimuth angle at each track groove 11), and the read/write core block 5 is sliced at each track groove a2b in a direction perpendicular to the gap 2tt. In addition, the surface to be joined of the read/write core block 5 is as follows. Before slicing the film made of Si02, etc., it is covered with a film.

i′+. As shown in FIG. 7(c), the erase core 10 with a
By cutting off the t1 end on the anti-zJ side, the elbow core needs to be corrected. Then, as shown in Figure 7 (2),
This corrected erase core lO and read/write core 2
0 with the henoto separation membrane sandwiched between them, and then attach a slider 3 made of non-magnetic material to both sides of the slider 3, and attach a winding wire (U!U not shown) to both cores 10 and 20. )
By providing this, it is possible to avoid manufacturing the preceding issue.

Also, Figure 6 of the Gyokuki: This shows complete upper and lower compatibility・＼So1
・Then, in the same way as shown in Figure 7, create tunnel erases 1 and 1 and 1 and 8, which do not have an unmass angle, and tunnel erases 1 and 1 and 9 that have azimuth angles. It is manufactured by tying together the hl I'C heel 7 which does not have an unmass angle and attaching the slider 3 as a bow.

(Invention or problem to be solved) However, in the preceding figure 5, Eraseno\Soto,
The center of the trunk on the magnetic recording medium that has been completely erased by the cassobure of the head 1. It is necessary to precisely align the centers of the two parts and join them. In addition, even if the upper and lower parts are fully compatible in Figure 6, the tracks on the magneto-electric recording medium recorded by the gap 8a of the read/write/soto 8 can be erased by the cassob 9 of , these heads 8.9 so that nine can accurately erase only the two sides
It is necessary to precisely align the centers of the parts and join them.

However, in the manufacturing method for the advance erase head shown in FIG. 7, the erase head 1 and the read write
＼When joining Soto 2: In order to accurately align the center positions, it is necessary to slice the erase core block 4 and read/write core block 5 with precision.
It is extremely difficult to perform slicing with such high precision by machine processing. Therefore, when creating the advance erase head 1, align the centers of the erase head 1 and the write write head 2 and join them, and then tighten the slider 3 and adjust it to make it 1 inch wider. ! Every single task becomes extremely tedious.

In addition, the adjustment work is similarly difficult and troublesome for the mound, which aligns and joins the centers of the upper and lower completely reciprocal +1\soto roreitrite l\tsu 1 and 8 and tunnel erase heso I and 9. becomes.

For this reason, it has not been easy to efficiently manufacture highly accurate advance erase heads or heads that are fully compatible with upper and lower parts.

[Means to solve the problem]

The present invention has been made to solve the above-mentioned problem B, and the invention as claimed in claim (1): This 8i knot is a canob; The read/write cores without the same track are installed before and after each on the same track, and sligs are put on both sides of the erase core and the slider block or elbow is cut out by 1 inch. vinegar·\
In SO1, the slider is stretched 1m on both sides of the erase core γ. The slider block is formed by the bonded body, and the canopy of the erase core 7' in the erase slide block is formed in the direction perpendicular to the surface where the slider and erase core are attached. In addition, this erase core has an azimuth angle of M t4 L. with respect to the joint surface of the erase slide 7 block. It is characterized by being reassigned.

In addition, the method for manufacturing the magnetic core according to the invention of claim (2) is to slice the block for the erase core and the block for the read/write core to a predetermined thickness in the direction perpendicular to the gap to form the erase core. A process of obtaining a read/write core, a process of attaching a pair of sliders to both sides of each of the erase cores and a write/write core to obtain an erase slider block and a read/write slider block, and a process of attaching a pair of sliders to both sides of the erase core and write core to obtain an erase slider block and a read/write slider block. cutting into a rectangular shape with slanted corners to obtain an erase slider block with a 1 inch square angle;
The present invention is characterized by including a step of joining the second erase slider block with an azimuth angle and the above-mentioned read/write slider lock by aligning the positions of the erase core and the read/write core to form a slider allosoku assembly.

[For production]

The invention of claim (2) can be applied to claim (1) by a method for producing a 1-system filter.
) is manufactured.

According to these inventions, the erase core by itself does not form an athomus angle on the cassop, but the atmus angle is set by 1 because of the two parts placed in the ↑i position on the eraser slider front block. Then, since we will have to perform the joining process once with this erase/sliver block removed and the slider tab a, we will perform the second joining process taking into account only the positioning of the first score and the read/write core's knob. Be able to do 1 te. Also, for this reason, the block for the erase core and the block for the read/write core are
When inserting the erase core and read/write core, you can accurately align the cap without having to perform a single slicing process.

In addition to the erase core for a normal erase head, it is also possible to use one for a double erase head in which the cap is divided in the radial direction of the cap, etc. Also,
In addition, another example of the present invention is to join a read/write core for high-density recording, etc. to the assembly of the erase slider bronch and the write sliver bronch.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment of the invention of claim (1).

This embodiment exemplifies a slider block assembly 30 with one Taylor's head. This sliter 1 lock assembly 30 has a rectangular azimuth angle eraser'
It consists of a joined body of a slider block 1l and a read/write slider block 2l.

Erase slider block 1l with azimuth angle is
A pair of sliders 3 are attached to both sides of an erase core 10. However, this erase core 10 is a rectangular azimuth angle erase slider block l.
It is arranged with an inclination It 1, relative to 1-. Furthermore, the gap 1a of the erase core 10 is
It is formed in a direction perpendicular to the slider attachment surface of 0.

As a result, the gap la has an azimuth angle with respect to the azimuth-angled erase slider block l1-.

? -1.Light slider flock 21 is also a lie try!
- A pair of sliders 3 are attached to both sides of the 7200. However, the cap 2a of the read/write core 20 does not have an azimuth angle with respect to the read/write like float 2l.

From the above-mentioned Mizonari, this example continues 1〒Erase・＼7 1
■; Well, the canopy is 14l with 30 liters per bottle! This anomalous corner hook: erased core IO and 4-ya knob 2, ▲(this anomaly corner-1.
Liteco 720 or something like that - there will be 1n stages on the front and back on the trunk.

FIGS. 2(a) to 2(・\): This is an embodiment of the invention of claim (2), and shows the manufacturing method of the above-mentioned i-tailored saw in the order of steps.

Figure 2 (a)! As shown, there is a block 4 for erase core formed with a large number of caps 1a divided by 11}, and a block 5 for read/write core 5 formed with a large number of caps 2a divided by 21 tracks. be created first. Create this erase core block 4 as follows. That is, a large number of tracks Ilb are connected to a predetermined cap I1 on one block article 40 which is made of a ferromagnetic material such as ferrite and has a leg portion 40a! A large number of track grooves 11 are formed in the other block t04l, which is made of a similar ferromagnetic material and has a foot portion 41a.
) with a predetermined gap width. Then, fill these trucks with low melting point glass 6,
Further: After forming a cassock baser film (not shown in the figure) made of Si02 etc. on one or both of the joint surfaces of the block 40.41, the two block materials 40.41 are joined. Both blocks 40 and 41 are joined together by pressing the surfaces together and fusing them with the low melting point glass 6 by heating.Similarly, the block for the read/write core also forms 1/rack 12+). Gap baser ll is attached to the joint surface of one block 1-o 50 that has been
It is made by forming a block a, heat-sealing it with low melting point glass 6 filled in the track 2b, etc., and joining both blocks together. In addition, the foot part 4 (l
a. J] :t and 50a. 51a is for forming a magnetic path later and providing a winding there.

The created score flock 4 is shown in Figure 2 (mouth).
As shown by the dashed-dotted line in FIG. 1, the core is sliced in the direction perpendicular to the gap 1a at the full length of each track 11), and divided into erase cores 10 as shown in FIG. Similarly, the flock 5 for read/write cores is arranged in each track groove 2b as shown by the dashed line in FIG. 2 (opening).
At this point, it is sliced in a direction perpendicular to the camp 2d, and divided into read/write cores 20 as shown in FIG. During these slicing processes, each core 10.2
0 thickness or cap 1a. There is no need to manage the vertical relationship with 2a with high precision.

The erase core lO obtained by slicing the erase core flock 4 has a pair of sliders 3 made of non-magnetic material attached to both sides as shown in FIG.
Erase slider block l1 as shown in (2) of the same figure
becomes. In addition, the -1 write core 20 obtained by slicing the read/write core flock 5 is also shown in Fig. 2 (c).
As shown in (2), a pair of sliders 3 are stretched on both sides and cut out by one inch to form a read/write slider block 2l as shown in (2) of the same figure.

The erase slider block 1l is further cut on each of its four sides along lines inclined by the atsimus angle, as shown by the dashed lines in Fig. 2 (e), so that it has a rectangular shape as shown in Fig. 2 (f). The erase slider block l1- has an azimuth angle of 1.1.

That is, this Ashima square erase slider float l
The erase core 1O is inclined by the azimuth angle with respect to the rectangular shape of 1-.

This azimuthal squared erase slider block l1- is joined and integrated with the read/write slider block 21 as shown in FIG. ．． This bonding can be achieved by adhesion using a thermosetting resin or by heat melting with a low melting point glass 6. Also, during this joining, both slider blocks I1. 21 core l(), to 20! J Keru Canobu 1; t. Align the center of 2a. However, slider 1 link l1
Since the alignment of the two is done once in the state of 2L, during the slicing, the thickness of the core 10 and the read/write core 20 may be uneven, and each canopy 1 is placed at the center in the thickness direction. Even if the sliders t and 2a are not placed exactly 1h, they can be more easily aligned by shifting the slider 3. In addition, these slider blocks 11. Each joint surface of No. 21 is subjected to a grinding process, and from the joint surface of No. 2, the cassob la. By adjusting the distance from 2a,
The distance between the cassob I +1 and 2 ii after joining is a predetermined distance. In addition, the bonding surface of either or both of these slig fans 11.21 is made of l\\ made of Si02 etc.
All IK is applied before bonding.

When the slider block assembly 30 is obtained by joining the two slider blocks 11.21, air grooves 30a are formed on the upper surface of the slider block assembly 30, as shown in FIG. 1, and each core 10. A pre-erase head is completed by providing a winding (not shown) at 20 and connecting the magnetic path.

Figure 3 shows the implementation of the invention of claim (1).

This embodiment exemplifies a slider flock assembly 3l of a completely compatible head with upper and lower parts. This slider block assembly 31 is composed of a rectangular 7-square tunnel eraser slider block 91, a rewrite slider block 8l, and a hi I<=slig block 7l.

The tunnel erase slider prosock 9l with a 1 width angle has a tunnel erase core 90 and two sliders 3 attached to both sides of the tunnel erase core 90.

However, this tunnel erase core 90 has a rectangular cedar shape.
The square erase slider block 1l is arranged at an angle with respect to the square erase slider block 1l. Further, the gap 9Et of the tunnel erase core 90 is formed in a direction perpendicular to both side surfaces of the tunnel erase core 90. As a result, gap 9 a! i, the atymus angle is 1. It has an atmus angle with respect to the tunnel erase strike 91.

The no-try 1 slider block 8l also has a pair of sliders 3 attached to both sides of the read/write core 80. However, the cap 8a of the read/write core 80 does not have an unmasked angle with respect to the read/write slig block 8l.

The M I G slider block 7l has a 11G core 70 and a slider 3 attached to one side.
On the curved side surface, the above-mentioned 7-mass squared lace slider block 9l and the lily slider block 81 are attached. 20 M I G core 70 cap also h-1 1 G slider block 7
l: No atymus angle is attached to this.

With the above configuration, Honji Li! ! The perfectly compatible head in this example is a 1-nel erase core 90 with an azimuth angle attached to the cap 9d on the slider flock assembly 3l, and a 1-light core 8 with no azimuth angle in the gap 8a.
0 and IFt will be placed in front of each other on the same track.

FIG. 4: This is an embodiment of the invention as claimed in claim (2), and shows a method of manufacturing the above-mentioned upper and lower fully reciprocal head.

Tunnel erase slider block with azimuthal angle 9l
The REETRITE slider block 8L is manufactured and joined in the same process as the 1 azimuth angle erase slider block 1L and REETRITE slider block 2L shown in FIGS. 1 and 2. However, unlike the gap 1a of the erase core 10, the cassob 9a of the tunnel erase core 90 has a width of 2 minutes in the gap width direction.

Also during this joining, the gap 9a.80 in the core 90.80 of both blocks E)1. The center of 8a is aligned. However, in this case as well, slider block 9
Since alignment is performed in the state of 1.81, the tunnel erase core 90 and read/write core 8 are
o The thickness of each canopy D; +. Even if 8a or 8a is not placed exactly 1y, you can easily align it by using slig 32 and shift 2. Then, then,
2nd Asimus angle 11cm, 1st, 1st, 1st, 1st, 1st, 1st, 1st, second Ashimath angle 11cm, 1st, 1st, 1st, 1st, nr Louise's core 90, 1st,
Lie 1・Slike Fronoku 8l Nori・Lie!・Core 80 was later replaced by Louis Race I＼Noto 9, a low-grade weapon.
It becomes Tori-1, Rai 1, ＼ノ1, and 8.

As shown in Figure 1, the high-abundance type 11G/\Noto7
8I + (; ::IA7 0 :,t, one side of the slider 3 is bowed and cut down by 1 inch to create the 11G slider front block 71 in Figure 3. At the same time, on the other side, there is one joint with the above-mentioned Ashimath angle 11 tons, Louise's Slike Fronoku 91 Tori-1, Lie 1, and Slyta Fronoku 81.
Ronoku's concubine, 31, is completed. Then, the second slider candle assembly; air groove 31 on the top surface of 3L.
As A is colored, each core! ) 0.80.70 is provided with a winding (not shown) and a magnetic path is connected, complete upper/lower compatibility is completed.

〔Effect of the invention〕

As is clear from the above explanation, the present invention
The center of the gap between the erase core and the read/write core can be easily aligned without slicing the block block for the 1/Ly 1/core with high precision, so the magnetic χ knot can be easily aligned. This has the effect of improving productivity.

[Brief explanation of drawings]

The Ml diagram is a TT view showing an embodiment of the invention of claim (1), and each of FIGS. 3 is a perspective view showing another embodiment of the invention of claim (1), and FIG. 4 is an exploded view illustrating an embodiment of the pond of the invention of claim (2). tt view, Figure 5 is a plan view of the first Taylor's \nt after jκ, Figure 6 is a plan view of a conventional one-hig lower completely compatible head,
7(a) to 7(2) are explanatory diagrams showing the manufacturing method of 1 and Y in order of steps. 1 a, 2 a- 8; t. O a - gap, 3... slig, lO... erase core, 1
1-...Athomas angle 1 gap Iss slider block, 20.8 (1...Lee 1 light core, 27.8
1...ri-1-ra, it slider block, 31).
31...Slike block joined body, 90...1 ton, Louise core, ≦)l...Unmass angle 1 clearance ton non-relay lace slider block, Patent application Person Kansai Nippon Denden Co., Ltd. No. 1 Diagram 2 Diagram 2 Diagram 5 Diagram 6 Diagram 7 (A) Ra (mouth) 4 5

Claims (2)

[Claims] (1) An erase core with an azimuth angle in the gap and a read/write core with no azimuth angle in the gap are placed side by side on the same track, and sliders are attached to both sides of the erase core and read/write core. In a magnetic head in which a slider block is formed, the slider block is formed by joining an erase slider block with sliders attached to both sides of an erase core and a read/write slider block with sliders attached to both sides of a read/write core. is formed, and a gap between the erase cores in the erase slider block is formed in a direction perpendicular to the bonding surface between the slider and the erase core, and the erase core is formed in the bonding surface between the erase slider block and the read/write slider block. A magnetic head characterized in that it is arranged at an angle corresponding to an azimuth angle. (2) Obtaining an erase core and a read/write core by slicing the erase core block and the read/write core block to a predetermined thickness in a direction perpendicular to the gap, and a pair on each side of the erase core and read/write core. a step of attaching a slider to obtain an erase slider block and a read/write slider block; a step of cutting each of the four sides of the erase slider block into a rectangular shape inclined by an azimuth angle to obtain an erase slider block with an azimuth angle; Manufacturing a magnetic head characterized by comprising the step of bonding the erase slider block with an azimuth angle and the read/write slider block while aligning the gap between the erase core and the read/write core to obtain a slider block assembly. Method.