JPS624900Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は、記録ヘツドと再生ヘツドとを結合し
て構成した磁気ヘツド装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic head device constructed by combining a recording head and a reproducing head.

夫々別個の録音ヘツドと再生ヘツドとを結合し
て構成したコンビネーシヨンヘツドが知られてい
る。このようなコンビネーシヨンヘツドの製造方
法としては、組立て時に、組立て治具に録音ヘツ
ド、再生ヘツドを夫々装着し、テープを走行させ
て録音・再生を行つて、夫々のヘツドのトラツク
位置、アオリ、アジマス、Ｌ−チヤンネル、Ｒ−
チヤンネルの電気的位相等を電気的に検出し、こ
の検出結果に基いて夫々のヘツドの位置調整を行
つた後、夫々のヘツドのシールドケース部を接着
して一体化する方法が用いられている。しかしこ
の方法では、組立治具のテープ走行系と、コンビ
ネーシヨンヘツドを用いた製品の実装テープ走行
系との違いやカセツトハーフ自体の精度のバラツ
キ等があつて、正確な調整が困難であつた。 A combination head is known which is constructed by combining a separate recording head and a reproduction head. The method of manufacturing such a combination head is to attach a recording head and a playback head to an assembly jig during assembly, run a tape to perform recording and playback, and adjust the track position, tilt, and tilt of each head. Azimuth, L-channel, R-
The method used is to electrically detect the electrical phase of the channel, adjust the position of each head based on this detection result, and then glue and integrate the shield case parts of each head. . However, with this method, accurate adjustment was difficult due to differences between the tape running system of the assembly jig and the mounting tape running system of a product using a combination head, as well as variations in the accuracy of the cassette half itself. .

本考案は、実装のテープ走行系において録音・
再生ヘツドの位置関係を最適に調整できるように
したものである。 This invention enables recording and
This allows the positional relationship of the playback heads to be adjusted optimally.

以下本考案の実施例を図面を参照して説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.

第１図はヘツド組立体をヘツド基板に取付けた
状態を示す正面図、第２図はヘツド組立体の底面
図、第３図は第２図の−断面図、第４図は第
２図の−断面図である。また第５図はヘツド
組立体の分解斜視図、第６Ａ図及び第６Ｂ図は録
音ヘツド組立体の正面図及び底面図、第７Ａ図及
び第７Ｂ図は再生ヘツド組立体の側面図及び正面
図、第８Ａ図及び第８Ｂ図はヘツド基台の側面図
及び平面図である。 Figure 1 is a front view showing the head assembly attached to the head board, Figure 2 is a bottom view of the head assembly, Figure 3 is a cross-sectional view of Figure 2, and Figure 4 is a cross-sectional view of Figure 2. - It is a cross-sectional view. Further, FIG. 5 is an exploded perspective view of the head assembly, FIGS. 6A and 6B are front and bottom views of the recording head assembly, and FIGS. 7A and 7B are side and front views of the playback head assembly. , 8A and 8B are a side view and a top view of the head base.

第１図に示すように、録音ヘツド１（以下単に
Ｒヘツドと記載する）及び再生ヘツド２（以下単
にＰヘツドと記載する）は、夫々Ｒヘツド取付板
３及びＰヘツド取付板４を介してヘツド基台５に
装着される。このヘツド基台５は、テープレコー
ダのヘツド基板６に調整可能に取付けられてい
る。 As shown in FIG. 1, a recording head 1 (hereinafter simply referred to as R head) and a playback head 2 (hereinafter simply referred to as P head) are connected via an R head mounting plate 3 and a P head mounting plate 4, respectively. It is attached to the head base 5. This head base 5 is adjustably attached to a head board 6 of a tape recorder.

第６Ａ図及び第６Ｂ図に示すように、Ｒヘツド
１はＲヘツド取付板３の基部３ａにスポツト溶接
されている。取付板３の基部３ａの両端部にはネ
ジ穴１０ａ，１０ｂが形成され、また基部３ａか
らほぼ板厚分の段部３ｂを経て横方向に伸びてい
る突片部３ｃの先端には穴１０ｃが形成されてい
る。なおＲヘツド１のテープ摺動面１ａの下部に
は２チヤンネル分のトラク１１Ｌ，１１Ｒが形成
され、これらのトラツクにはギヤツプ１２Ｌ，１
２Ｒが夫々形成されている。 As shown in FIGS. 6A and 6B, the R head 1 is spot welded to the base 3a of the R head mounting plate 3. As shown in FIGS. Screw holes 10a and 10b are formed at both ends of the base 3a of the mounting plate 3, and a hole 10c is formed at the tip of a projecting piece 3c extending laterally from the base 3a through a step 3b approximately equal to the thickness of the plate. is formed. Note that tracks 11L and 11R for two channels are formed at the lower part of the tape sliding surface 1a of the R head 1, and gaps 12L and 11R are formed in these tracks.
2R are formed respectively.

第７Ａ図及び第７Ｂ図に示すように、Ｐヘツド
２はＰヘツド取付板４の基部４ａにスポツト溶接
されている。取付板４の基部４ａの両端部にはネ
ジ穴１３ａ，１３ｂが形成され、また基部４ａと
ほぼ直角に折れ曲つた側部４ｂにはネジ穴１３ｃ
が形成されている。第５図に示すように、取付板
４の側部４ｂには、テープガイド板１４が、ブス
２０を上記ネジ穴１３ｃに螺入することによつて
取付けられる。なおＰヘツド２のテープ摺動面２
ａの下部には２チヤンネル分のトラツク１５Ｌ，
１５Ｒが形成され、これらのトラツクにはギヤツ
プ１６Ｌ，１６Ｒが形成されている。 As shown in FIGS. 7A and 7B, the P head 2 is spot welded to the base 4a of the P head mounting plate 4. As shown in FIGS. Screw holes 13a and 13b are formed at both ends of the base 4a of the mounting plate 4, and a screw hole 13c is formed at the side 4b bent at almost right angles to the base 4a.
is formed. As shown in FIG. 5, the tape guide plate 14 is attached to the side portion 4b of the mounting plate 4 by screwing the bus 20 into the screw hole 13c. Note that the tape sliding surface 2 of the P head 2
At the bottom of a is a track 15L for 2 channels,
15R is formed, and gaps 16L and 16R are formed in these tracks.

第８Ａ図及び第８Ｂ図に示すように、ヘツド基
台５の３つのコーナ部には、穴２１ａ，２１ｂ，
２１ｃが形成され、夫々の穴の下部は、バネを装
着させるために凹部となつている。第１，３，４
図に示すように、ビス２２ａ〜２２ｃが、ヘツド
基台５の穴２１ａ〜２１ｃを通り、更に圧縮バネ
２３ａ〜２３ｃを挿通してヘツド基板６のネジ穴
１９ａ〜１９ｃに螺入されることによつて、ヘツ
ド基台５がヘツド基板６に調整可能に支持され
る。 As shown in FIGS. 8A and 8B, the three corners of the head base 5 have holes 21a, 21b,
21c is formed, and the lower part of each hole is a recessed portion for mounting a spring. 1st, 3rd, 4th
As shown in the figure, the screws 22a to 22c pass through the holes 21a to 21c in the head base 5, and then through the compression springs 23a to 23c, and are screwed into the screw holes 19a to 19c in the head board 6. Thus, the head base 5 is supported by the head base plate 6 in an adjustable manner.

ヘツド基台５のほぼ中央部の両側には、Ｐヘツ
ド取付台部２４ａ，２４ｂが形成され、この台部
２４ａ，２４ｂには穴２５ａ，２５ｂが形成され
ている。第１，２，４，５図に示すように、ヘツ
ド基台５の下部からビス２６ａ，２６ｂを穴２５
ａ，２５ｂを通つてＰヘツド取付板４のネジ穴１
３ａ，１３ｂに螺入させることによつて、Ｐヘツ
ド組立体がヘツド基台５に固定される。 P head mounting base portions 24a, 24b are formed on both sides of the approximately central portion of the head base 5, and holes 25a, 25b are formed in the base portions 24a, 24b. As shown in Figures 1, 2, 4, and 5, insert the screws 26a and 26b into the holes 25 from the bottom of the head base 5.
a, 25b to the screw hole 1 of the P head mounting plate 4.
3a and 13b, the P head assembly is fixed to the head base 5.

またヘツド基台５のＰヘツド取付台部２４ａ，
２４ｂの側部には、Ｒヘツド取付台部２７が形成
され、この台部の両側部には穴２８ａ，２８ｂが
形成されている。Ｐヘツド取付台部２４ａ，２４
ｂの中間部は溝部２９が形成され、第１図及び第
３図に示すように、この溝部２９内にＲヘツド取
付板３の突片部３ｃが、ヘツド取付板４の下を潜
つた状態で、Ｒヘツド取付板３をヘツド基台５に
装着している。溝部２９の先端部にはネジ穴３０
が形成されている。従つて、第３，４，５図に示
すように、ビス３３ｃが、Ｒヘツド取付板３の突
片部３ｃの先端の穴１０ｃを通り、更に圧縮バネ
３４ｃを挿通してヘツド基台５の上記ネジ穴３０
に螺入され、またビス３３ａ，３３ｂが、ヘツド
基台５の下方から穴２８ａ，２８ｂを通り、更に
圧縮バネ３４ａ，３４ｂを挿通してＲヘツド取付
板３のネジ穴１０ａ，１０ｂに螺入されることに
よつて、Ｒヘツド組立体がヘツド基台５に調整可
能に装着される。 In addition, the P head mounting portion 24a of the head base 5,
An R head mounting base 27 is formed on the side of 24b, and holes 28a and 28b are formed on both sides of this base. P head mounting base parts 24a, 24
A groove 29 is formed in the middle part of b, and as shown in FIGS. 1 and 3, the projecting piece 3c of the R head mounting plate 3 is hidden under the head mounting plate 4 in this groove 29. Then, the R head mounting plate 3 is attached to the head base 5. A screw hole 30 is provided at the tip of the groove 29.
is formed. Therefore, as shown in FIGS. 3, 4, and 5, the screw 33c passes through the hole 10c at the tip of the protruding piece 3c of the R head mounting plate 3, and then passes through the compression spring 34c to attach the head base 5. Above screw hole 30
The screws 33a and 33b pass through the holes 28a and 28b from below the head base 5, and then the compression springs 34a and 34b are inserted into the screw holes 10a and 10b of the R head mounting plate 3. As a result, the R head assembly is adjustably mounted on the head base 5.

次に本実施例の磁気ヘツド装置の組立て及び調
整方法を説明すると、まず第６Ａ、６Ｂ図に示す
Ｒヘツド組立体が、ビス３３ａ〜３３ｃでもつて
バネ３４ａ〜３４ｃを介してヘツド基台５上に取
付けられる。次にＰヘツド組立体がビス２６ａ，
２６ｂでもつて、Ｒヘツド取付板３の突片部３ｃ
を跨いでヘツド基台５上に固着される。この際、
Ｒヘツド１に対するＰヘツド２の突き出し寸法が
合わせられる。またＲヘツド１を取付けるビス３
３ａ，３３ｂを夫々調整して、Ｒヘツド１のアオ
リ及びトラツク高さがＰヘツド２に対して調整さ
れる。 Next, the method of assembling and adjusting the magnetic head device of this embodiment will be explained. First, the R head assembly shown in FIGS. 6A and 6B is mounted on the head base 5 using screws 33a to 33c and via springs 34a to 34c. mounted on. Next, the P head assembly is screw 26a,
26b, the protruding piece 3c of the R head mounting plate 3
It is fixed on the head base 5 across the head. On this occasion,
The protrusion dimension of the P head 2 with respect to the R head 1 is matched. Also, screw 3 to attach R head 1.
3a and 33b, the tilt and track height of the R head 1 are adjusted relative to the P head 2.

次にヘツド基台５がビス２２ａ〜２２ｃでもつ
てバネ２３ａ〜２３ｃを介してヘツド基板６上に
取付けられる。この状態で、上記ビス２２ａ〜２
２ｃを回動調整することによつて、Ｒヘツド１及
びＰヘツド２のヘツド基板６に対する高さが調整
される。またビス２２ｂを回動調整することによ
つて、Ｐヘツド２のアオリ角が調整される。更
に、ビス２２ｃを回動調整することによつて、Ｐ
ヘツド２のアジマスが調整される。次にＲヘツド
１の取付けビス３３ｃを回動調整してＲヘツド１
のアジマス及び電気的位相が調整される。 Next, the head base 5 is mounted on the head board 6 using screws 22a to 22c and via springs 23a to 23c. In this state, the screws 22a to 2
By adjusting the rotation of the head 2c, the heights of the R head 1 and the P head 2 relative to the head substrate 6 are adjusted. Further, by adjusting the rotation of the screw 22b, the tilt angle of the P head 2 can be adjusted. Furthermore, by adjusting the rotation of the screw 22c, P
The azimuth of head 2 is adjusted. Next, adjust the rotation of the mounting screw 33c of R head 1, and attach R head 1.
The azimuth and electrical phase of are adjusted.

本実施例においては、第６Ｂ図に示すように、
Ｒヘツド１の突片部３ｃの先端の穴１０ｃから基
部３ａのネジ穴１０ａ，１０ｂに至るまでの寸法
Ｅをを十分長くしているので、Ｒヘツド１のアジ
マス微調整が容易である。また突片部３ｃはＰヘ
ツド１のの下部を潜り抜けて横方向に突出されて
いるので、寸法Ｅを十分大きく取つても、Ｐヘツ
ド２の巾を有効に利用することができ、全体とし
てコンパクトである。またＲヘツド１のアジマス
調整は、装置組立て後にビス３３c1本を回動調整
して行うことができるので、調整作業が簡単であ
る。 In this embodiment, as shown in FIG. 6B,
Since the dimension E from the hole 10c at the tip of the protruding piece 3c of the R head 1 to the screw holes 10a, 10b of the base 3a is made sufficiently long, fine adjustment of the azimuth of the R head 1 is easy. Furthermore, since the projecting piece 3c passes through the lower part of the P head 1 and protrudes laterally, even if the dimension E is set sufficiently large, the width of the P head 2 can be used effectively, and the overall It is compact. Further, the azimuth adjustment of the R head 1 can be carried out by adjusting the rotation of one screw 33c after assembling the device, so the adjustment work is simple.

本考案は上述の如く、第２のヘツド取付板３の
突片部３ｃが第１のヘツド取付板４の下方を通過
して第１のヘツド２の側部に突出するようにし、
この突片部３ｃの先端に第２のヘツド１のアジマ
スを調整する手段（ビス３３ｃ及びバネ３４ｃ）
を設けた。故に第２のヘツド１のアジマスを調整
する手段から第２のヘツド１の支持位置までの距
離を十分に大きくとつた状態でアジマスの微調整
及び電気的位相調整を行うようにすることがで
き、しかも第１のヘツドの巾を有効に利用して全
体としてコンパクトに構成することができる。ま
た第２のヘツドのアジマス調整もヘツド装置を組
立てた後に、突片部先端の１か所のアジマス調整
ビス３３ｃでもつて簡単に行うことができる。 As described above, the present invention allows the projecting piece 3c of the second head mounting plate 3 to pass under the first head mounting plate 4 and protrude to the side of the first head 2,
A means (screw 33c and spring 34c) for adjusting the azimuth of the second head 1 at the tip of this projecting piece 3c
has been established. Therefore, it is possible to perform fine adjustment of the azimuth and electrical phase adjustment while maintaining a sufficiently large distance from the means for adjusting the azimuth of the second head 1 to the supporting position of the second head 1. Moreover, by effectively utilizing the width of the first head, the overall structure can be made compact. Further, the azimuth adjustment of the second head can be easily performed by using the azimuth adjustment screw 33c located at the tip of the protrusion after the head device is assembled.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はヘツド組立体をヘツド基板に取付けた
状態を示す正面図、第２図はヘツド組立体の底面
図、第３図は第２図の−断面図、第４図は第
２図の−断面図、第５図はヘツド組立体の分
解斜視図、第６Ａ図及び第６Ｂ図は録音ヘツド組
立体の正面図及び底面図、第７Ａ図及び第７Ｂ図
は再生ヘツド組立体の側面図及び正面図、第８Ａ
図及び第８Ｂ図はヘツド基台の側面図及び平面図
である。 なお図面に用いられている符号において、１…
…録音ヘツド、２……再生ヘツド、３……Ｒヘツ
ド取付板、４……Ｐヘツド取付板、５……ヘツド
基台、６……ヘツド基板、２２ａ〜２２ｃ……ビ
ス、２３ａ〜２３ｃ……圧縮バネ、３３ｃ……ビ
ス、３４ｃ……圧縮バネ、である。 Figure 1 is a front view showing the head assembly attached to the head board, Figure 2 is a bottom view of the head assembly, Figure 3 is a cross-sectional view of Figure 2, and Figure 4 is a cross-sectional view of Figure 2. - sectional view, FIG. 5 is an exploded perspective view of the head assembly, FIGS. 6A and 6B are front and bottom views of the recording head assembly, and FIGS. 7A and 7B are side views of the playback head assembly. and front view, No. 8A
8B are a side view and a plan view of the head base. In addition, in the symbols used in the drawings, 1...
...recording head, 2...playback head, 3...R head mounting plate, 4...P head mounting plate, 5...head base, 6...head board, 22a-22c...screws, 23a-23c... ...compression spring, 33c...screw, 34c...compression spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１及び第２のヘツド取付板の夫々に固着され
た第１及び第２の磁気ヘツドと、上記第１及び第
２のヘツド取付板が装着される第３のヘツド取付
板とを備え、上記第３のヘツド取付板をヘツド基
板に対して高さ調整可能に装着するようにし、ま
た上記第２のヘツド取付板の突片部が上記第１の
ヘツド取付板の下方を通過し得るように、上記第
１のヘツド取付板と第３のヘツド取付板との間に
空間部を形成し、上記突片部の先端側に上記第２
のヘツドとアジマスを調整する手段を設けた磁気
ヘツド装置。 a third head mounting plate to which the first and second head mounting plates are mounted; first and second magnetic heads fixed to the first and second head mounting plates, respectively; The third head mounting plate is attached to the head board so that its height can be adjusted, and the projecting piece of the second head mounting plate can pass under the first head mounting plate. , a space is formed between the first head mounting plate and the third head mounting plate, and the second head mounting plate is formed on the tip side of the projecting piece.
A magnetic head device having means for adjusting the head and azimuth of the head.