JPH0248975Y2 - - Google Patents
Info
- Publication number
- JPH0248975Y2 JPH0248975Y2 JP13731883U JP13731883U JPH0248975Y2 JP H0248975 Y2 JPH0248975 Y2 JP H0248975Y2 JP 13731883 U JP13731883 U JP 13731883U JP 13731883 U JP13731883 U JP 13731883U JP H0248975 Y2 JPH0248975 Y2 JP H0248975Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- screw
- mounting plate
- plate
- azimuth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000002441 reversible effect Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【考案の詳細な説明】
本考案は、磁気ヘツド取付板に設けたアジマス
調整板の形状を改善した反転ヘツド機構に関す
る。[Detailed Description of the Invention] The present invention relates to a reversing head mechanism in which the shape of the azimuth adjusting plate provided on the magnetic head mounting plate is improved.
従来磁気ヘツドを角度180゜回転させる反転ヘツ
ド機構では、第１図のように録再ヘツド１３と消
去ヘツド１４が基台１に反転自在に取り付けられ
たヘツド取付板３に固定され、ヘツド取付板３に
一体に形成されたアジマス調整部３ｃに基台１に
螺合された２本の螺子１７，１８の先端が各別に
当てられ、螺子の先端は点接触で摩耗が激しいの
で耐久性を向上させるため螺子の先端に***を明
けて硬い別ピースのルビーやセラミツク等を固定
しなければならなかつた。 In the conventional reversing head mechanism that rotates the magnetic head through an angle of 180 degrees, as shown in FIG. The tips of the two screws 17 and 18 screwed onto the base 1 are individually applied to the azimuth adjustment part 3c integrally formed in the azimuth adjustment part 3c, and the tips of the screws are in point contact and are subject to severe wear, so durability is improved. In order to do this, a small hole had to be made at the tip of the screw and a separate hard piece of ruby or ceramic had to be fixed to it.
従つて、硬い別ピースを固定しなければなら
ず、固定作業と部品費が必要でコスト高になる欠
点がある。 Therefore, it is necessary to fix another hard piece, which requires fixing work and parts costs, resulting in high costs.
本考案の目的は、上記欠点に鑑み、アジマス調
整板を曲面で形成して端面が平面の螺子を線接触
させて耐久性を向上した反転ヘツド機構を提供す
ることにある。 SUMMARY OF THE INVENTION In view of the above drawbacks, it is an object of the present invention to provide a reversing head mechanism in which the azimuth adjustment plate is formed with a curved surface and the screw with a flat end surface is brought into line contact with the mechanism to improve durability.
本考案の特徴は、磁気ヘツドを支持したヘツド
ブロツクを取り付けたヘツド取付板を設け、該ヘ
ツド取付板にはその一側に曲面で形成されたアジ
マス調整板が一体形成されており、かつ前記ヘツ
ド取付板を反転自在に支持した基台には端面が平
面で形成された螺子を取り付け、前記アジマス調
整板と螺子とが線接触するようにしたことであ
る。 A feature of the present invention is that a head mounting plate is provided with a head block that supports a magnetic head, and an azimuth adjustment plate formed with a curved surface is integrally formed on one side of the head mounting plate, and A screw having a flat end face is attached to the base that supports the plate reversibly, so that the azimuth adjustment plate and the screw are in line contact.
以下、図示の実施例で本考案を説明する。第２
図から第４図で反転ヘツド機構は基台１に中空筒
状の回転部材２が反転自在に支承されて回転部材
２の一端に板状ヘツド取付板３が固定され、回転
部材２の他端にはピニオン４が固定されて基台１
に回転自在に支軸１０で支承された扇形歯車５が
ピニオン４に噛合されると共に両者に反転バネ１
１の両端が掛け止めされ、上記ヘツド取付板３に
はヘツドブロツク６がビス１２で固定されてヘツ
ドブロツク６の一側に録再ヘツド１３と消去ヘツ
ド１４が固定され、基台１に固定されたアジマス
プレート７に夫々巻きバネ１５が嵌挿された端面
平面の螺子８，９が螺合されてヘツド取付板３の
アジマス調整板３ａの外周に線接触されている。 The present invention will be explained below with reference to illustrated embodiments. Second
4, the reversing head mechanism has a hollow cylindrical rotating member 2 supported on a base 1 so as to be freely reversible, a plate-shaped head mounting plate 3 fixed to one end of the rotating member 2, and a plate-shaped head mounting plate 3 fixed to the other end of the rotating member 2. A pinion 4 is fixed to the base 1.
A sector gear 5 rotatably supported by a support shaft 10 is meshed with the pinion 4, and a reversing spring 1 is attached to both.
A head block 6 is fixed to the head mounting plate 3 with screws 12, and a recording/reproducing head 13 and an erasing head 14 are fixed to one side of the head block 6. Screws 8 and 9, each having a flat end face, each having a coiled spring 15 fitted therein, are screwed into the plate 7 and are in line contact with the outer periphery of the azimuth adjustment plate 3a of the head mounting plate 3.
前記録再ヘツド１３と消去ヘツド１４には磁気
テープ１６が摺接されている。 A magnetic tape 16 is in sliding contact with the recording/reproducing head 13 and the erasing head 14.
前記アジマス調整板３ａはヘツド取付板３の一
側に一体に曲面３ｂで形成されている。 The azimuth adjusting plate 3a is integrally formed on one side of the head mounting plate 3 with a curved surface 3b.
反転ヘツド機構が前記のように構成されて扇形
歯車５が回動されると、ピニオン４、回転部材
２、ヘツドブロツク６、録再ヘツド１３、消去ヘ
ツド１４が角度180゜反転されて第２図、第５図の
ようにアジマスプレート７に螺合された一方の螺
子８の端面８ａにアジマス調整板３ａの曲面３ｂ
が反転バネで当接付勢され、螺子８の螺合推進量
に応じてアジマス角度が調整される。 When the reversing head mechanism is constructed as described above and the sector gear 5 is rotated, the pinion 4, rotating member 2, head block 6, recording/reproducing head 13, and erasing head 14 are reversed by an angle of 180 degrees as shown in FIG. As shown in FIG. 5, the curved surface 3b of the azimuth adjustment plate 3a is attached to the end surface 8a of one of the screws 8 screwed into the azimuth plate 7.
are urged into contact by a reversal spring, and the azimuth angle is adjusted according to the amount of screw engagement of the screw 8.
次に扇形歯車５が前回とは反対方向に回動され
るとピニオン４、回転部材２、ヘツドブロツク
６、録再ヘツド１３、消去ヘツド１４が角度180゜
反転されて第４図及び第５図可想線のように他方
の螺子９の端面９ａにアジマス調整板３ａの曲面
３ｂが反転バネ１１で当接付勢されて録再ヘツド
１３と消去ヘツド１４が反対トラツクに合わさ
れ、螺子９の螺合推進量に応じてアジマス角度が
調整される。 Next, when the sector gear 5 is rotated in the opposite direction from the previous rotation, the pinion 4, rotating member 2, head block 6, recording/reproducing head 13, and erasing head 14 are reversed by an angle of 180 degrees, as shown in FIGS. 4 and 5. As shown in the phantom line, the curved surface 3b of the azimuth adjustment plate 3a is brought into contact with the end surface 9a of the other screw 9 by the reversing spring 11, and the recording/reproducing head 13 and the erasing head 14 are aligned with opposite tracks, and the screw 9 is screwed together. The azimuth angle is adjusted according to the amount of propulsion.
前記アジマス角度調整において、螺子８，９の
端面８ａ，９ａとアジマス調整板３ａの曲面３ｂ
は第５図、第６図のように線接触されるので、螺
子８，９の端面の耐久性は点接触に比較して著し
く向上されると共に、曲面と平面の接触であるか
ら螺子の回動で螺子ピツチに応じてヘツド取付板
３は均一に回動されてアジマス角度の調整が精度
良く容易になされ、従来のように螺子の耐久性を
向上させるために別ピースを固定する必要がな
く、固定作業や部品費が不要でコストを著しく低
減することができる。 In the azimuth angle adjustment, the end surfaces 8a and 9a of the screws 8 and 9 and the curved surface 3b of the azimuth adjustment plate 3a
are in line contact as shown in Figures 5 and 6, so the durability of the end faces of the screws 8 and 9 is significantly improved compared to point contact, and since the contact is between a curved surface and a flat surface, the rotation of the screws is reduced. The head mounting plate 3 is rotated uniformly according to the screw pitch by the movement, and the azimuth angle can be adjusted easily and accurately, and there is no need to fix a separate piece to improve the durability of the screw as in the past. , there is no need for fixed work or parts costs, and costs can be significantly reduced.
本考案は前述のように構成されたから、螺子端
面とアジマス調整板は平面と曲面とで線接触され
るので螺子端面は耐久性が著しく向上され、平面
と曲面の線接触で他の接触がないので螺子の回動
で螺子ピツチに応じてヘツド取付板は均一に回動
されてアジマス角度の調整が精度良く容易になさ
れ、構成簡単でコストが低減出来る等実用上優れ
た効果を奏する反転ヘツド機構を提供することが
できる。 Since the present invention is configured as described above, the screw end face and the azimuth adjustment plate are in line contact with the flat and curved surfaces, so the durability of the screw end face is significantly improved, and there is no other contact due to the line contact between the flat and curved surfaces. Therefore, when the screw rotates, the head mounting plate is rotated uniformly according to the screw pitch, and the azimuth angle can be adjusted easily and accurately.The reversing head mechanism has excellent practical effects such as simple configuration and cost reduction. can be provided.
第１図は従来の反転ヘツド機構の説明図、第２
図は本考案反転ヘツド機構の斜視図、第３図は分
解斜視図、第４図は反転状態を示す斜視図、第５
図はヘツド取付板と螺子の要部正面図、第６図は
第５図の側面図である。
１……基台、３……ヘツド取付板、３ａ……ア
ジマス調整板、３ｂ……曲面、６……ヘツドブロ
ツク、１３，１４……磁気ヘツド、８，９……螺
子、８ａ，９ａ……端面。
Figure 1 is an explanatory diagram of the conventional reversing head mechanism, Figure 2
The figure is a perspective view of the inventive reversing head mechanism, Fig. 3 is an exploded perspective view, Fig. 4 is a perspective view showing the inverted state, and Fig. 5 is a perspective view of the inventive reversing head mechanism.
The figure is a front view of the main parts of the head mounting plate and the screw, and FIG. 6 is a side view of FIG. 5. 1... Base, 3... Head mounting plate, 3a... Azimuth adjustment plate, 3b... Curved surface, 6... Head block, 13, 14... Magnetic head, 8, 9... Screw, 8a, 9a... End face.
Claims (1)
けたヘツド取付板を設け、該ヘツド取付板にはそ
の一側に曲面で形成されたアジマス調整板が一体
形成されており、かつ前記ヘツド取付板を反転自
在に支持した基台には端面が平面で形成された螺
子を取り付け、前記アジマス調整板と螺子とが線
接触するようにしたことを特徴とする反転ヘツド
機構。 A head mounting plate is provided on which a head block supporting a magnetic head is attached, and an azimuth adjustment plate formed with a curved surface is integrally formed on one side of the head mounting plate, and the head mounting plate is supported in a freely reversible manner. A reversing head mechanism characterized in that a screw having a flat end face is attached to the base, and the azimuth adjustment plate and the screw are in line contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13731883U JPS6047120U (en) | 1983-09-06 | 1983-09-06 | Reversing head mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13731883U JPS6047120U (en) | 1983-09-06 | 1983-09-06 | Reversing head mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6047120U JPS6047120U (en) | 1985-04-03 |
| JPH0248975Y2 true JPH0248975Y2 (en) | 1990-12-21 |
Family
ID=30308475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13731883U Granted JPS6047120U (en) | 1983-09-06 | 1983-09-06 | Reversing head mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047120U (en) |
-
1983
- 1983-09-06 JP JP13731883U patent/JPS6047120U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6047120U (en) | 1985-04-03 |
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