JPH0230041A - Deflecting device for cathode-ray tube - Google Patents

Abstract

PURPOSE:To make it possible to expand the sloping range of the deflecting yoke by forming a cut-off section at an inner circumferential section at the back end of an insulating frame. CONSTITUTION:When an insulating frame 1 is sloped in the direction of an arrow E, a portion a little nearer to the external circumference than to the corner 12 of the insulating frame 1 resultantly pushes the external circumferential section 14 of a cover 5, and as a result, the external circumferential section 14 moves back in the direction of an arrow F. On the other hand, a joint 11 does not move back, but a cut-off section 10 works such that it makes a doge about this joint 11; resultantly, the insulating frame never hits against the joint 11. The insulating frame 1, therefore, hits against the external circumferential section 14 of the cover 5, so that it is possible to much slope the insulating frame 1. Even if the insulating frame 1 slopes, if the cover 5 is set a little in the forward direction in advance, the cover 5 can hold down the insulating frame 1 with a sufficient force.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はテレビジョン受像機等の陰極線管用偏向装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a deflection device for cathode ray tubes such as television receivers.

従来の技術 一般に偏向装置を構成するに際し、偏向ヨークを陰極線
管に取り付けた後に第５図に示されるように矢印Ａ、Ｂ
方向に偏向ヨークを傾ける事によってコンバーゼンスの
微調整を行っている。2. Description of the Related Art Generally, when configuring a deflection device, after attaching a deflection yoke to a cathode ray tube, arrows A and B are shown in FIG.
Convergence is finely adjusted by tilting the deflection yoke in this direction.

第５図において、２０は偏向ヨーク２１の前方部に於て
偏向ヨーク２１の内側面と陰極線管２１２との間に挟ま
れたくさび状の弾性体である。偏向ヨーク２１は陰極線
管２２に隙間無くはまり合っているわけではなく、陰極
線管２２に装着した状態で偏向ヨーク２１を陰極線管２
２の中心軸に対して傾ける事が可能である。即ち、弾性
体２０を前後させることによって偏向ヨーク２１の傾き
の量を調整出来るようになっているのである。In FIG. 5, reference numeral 20 denotes a wedge-shaped elastic body sandwiched between the inner surface of the deflection yoke 21 and the cathode ray tube 212 at the front part of the deflection yoke 21. The deflection yoke 21 does not fit into the cathode ray tube 22 without any gaps, so when the deflection yoke 21 is attached to the cathode ray tube 22,
It is possible to tilt with respect to the central axis of 2. That is, by moving the elastic body 20 back and forth, the amount of inclination of the deflection yoke 21 can be adjusted.

ところで偏向ヨークを陰極線管に取り付けるための方法
の一つとして、第６図に示されるように偏向ヨーク２１
の後端部に貫通孔を有するカバー２３を装着し、上記貫
通孔の周囲に設けられた固定用片２４を用いてカバー２
３を陰極線管２２のネック部に固定する事により、偏向
ヨークを固定するという方法がある。つまり、カバー２
３を偏向コイル巻回用の絶縁枠２７の後端部に押し付け
、第７図のように固定用片２４の外周に装着されたバン
ド２５をビス２６とナツト（図示せず）によって締め付
ける事によって行うのである。By the way, as one method for attaching a deflection yoke to a cathode ray tube, as shown in FIG.
A cover 23 having a through hole is attached to the rear end, and the cover 2 is fixed using a fixing piece 24 provided around the through hole.
There is a method of fixing the deflection yoke by fixing the deflection yoke 3 to the neck portion of the cathode ray tube 22. In other words, cover 2
3 against the rear end of the insulation frame 27 for winding the deflection coil, and tighten the band 25 attached to the outer periphery of the fixing piece 24 with screws 26 and nuts (not shown) as shown in FIG. Do it.

発明が解決しようとする課題 しかしながら以上のような構成では、絶縁枠２７を傾け
ようとすると次のような問題が生じる。Problems to be Solved by the Invention However, with the above configuration, when attempting to tilt the insulating frame 27, the following problem occurs.

例えば第８図に示されるように矢印Ｃ方向に絶縁枠２７
を傾けると、図面左側の端部２８はカバー２３の内面を
強く上方向く矢印り方向〉へ押し、−方図面右側の端部
２９はカバー２３の内面から離れようとする。ところで
この場合において、固定用片２４は前述のように陰極線
管２２のネック部に強固に固定されているので、たとえ
絶縁枠２７から押されたとしても、固定用片２４が移動
することはない。ただしカバー２３の固定用片２４から
外側へ離れた部分すなわち外周部２３ａは矢印り方向へ
変位する。つまり、絶縁枠２７の揺動運動の中心は固定
用片２４の付根部３０の付近にあり、この部分を中心に
揺動運動しようとしても、十分な角度になるまで変位す
る前に絶縁枠２７の外縁部３２が陰極線管２２に接触し
てしまう。したがってこのような構成では、絶縁枠２７
の揺動運動の範囲は非常に小さく、偏向ヨークを傾ける
ことの出来る範囲が非常に狭く、コンバーゼンスの調整
が十分に出来ないという問題があった。For example, as shown in FIG.
When tilted, the end 28 on the left side in the drawing strongly pushes the inner surface of the cover 23 upwards in the direction of the arrow, and the end 29 on the right side in the - direction tends to separate from the inner surface of the cover 23. By the way, in this case, the fixing piece 24 is firmly fixed to the neck portion of the cathode ray tube 22 as described above, so even if it is pushed from the insulating frame 27, the fixing piece 24 will not move. . However, the portion of the cover 23 that is away from the fixing piece 24 to the outside, that is, the outer peripheral portion 23a, is displaced in the direction indicated by the arrow. In other words, the center of the swinging movement of the insulating frame 27 is near the base 30 of the fixing piece 24, and even if you try to swing around this part, the insulating frame 27 will not be able to move to a sufficient angle. The outer edge 32 of the cathode ray tube 22 comes into contact with the cathode ray tube 22. Therefore, in such a configuration, the insulating frame 27
The range of rocking motion is very small, and the range in which the deflection yoke can be tilted is very narrow, resulting in the problem that convergence cannot be adjusted sufficiently.

本発明はこの課題に鑑みてなされたものであり、陰極線
管に取り付けた状態において、偏向ヨークを傾ける範囲
を大きくする事が出来る陰極線管用偏向装置を提供する
事を目的とする。The present invention has been made in view of this problem, and an object of the present invention is to provide a deflection device for a cathode ray tube that can enlarge the range in which the deflection yoke can be tilted when attached to the cathode ray tube.

課題を解決するための手段 本発明は以上の課題を解決するため、絶縁枠の後端部の
内周部に切除部を形成した。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention forms a cutout at the inner circumference of the rear end of the insulating frame.

作用 以上のように構成したことにより、切除部がカバーの固
定用片の付根部をかわすこととなり、絶縁枠はその付根
部よりも外へ離れた部分でカバーに当たることとなる。Effect With the above-described structure, the cutout portion bypasses the base of the fixing piece of the cover, and the insulating frame comes into contact with the cover at a portion farther outward than the base.

実施例 以下、本発明における陰極線管用偏向装置の実施例につ
いて説明する。第１図及び第２図において、１は合成樹
脂で構成された絶縁枠、２は絶縁枠１に巻かれた水平偏
向コイル、３は絶縁枠１を囲むように配属された垂直偏
向用の磁気コア、４は磁気コア３の内側に設けられた垂
直偏向コイルである。５は絶縁枠１の後端部に装着され
たカバーであり、いくらか弾性のある合成樹脂によって
構成される。６はカバー５を固定するための金属性のバ
ンドであり、カバー５の固定用片７を陰極線管８に縛り
付けている。９は絶縁枠ｌと陰極線管８の間に差し込ま
れた弾性材である。１０は絶縁枠１の後端部の内縁に形
成された切除部である。切除部１０はカバー５の固定用
片７の付根部１１に対面する部分に形成されており、こ
のため切除部１０の側方に形成された角部１２がカバー
５の付根部１１より外側の部分に当たるようになる。Examples Examples of the deflection device for cathode ray tubes according to the present invention will be described below. In Figures 1 and 2, 1 is an insulating frame made of synthetic resin, 2 is a horizontal deflection coil wound around the insulating frame 1, and 3 is a vertical deflection magnet arranged to surround the insulating frame 1. The core 4 is a vertical deflection coil provided inside the magnetic core 3. A cover 5 is attached to the rear end of the insulating frame 1, and is made of a somewhat elastic synthetic resin. 6 is a metal band for fixing the cover 5, and ties the fixing piece 7 of the cover 5 to the cathode ray tube 8. Reference numeral 9 denotes an elastic material inserted between the insulating frame l and the cathode ray tube 8. Reference numeral 10 denotes a cutout portion formed at the inner edge of the rear end portion of the insulating frame 1. The cut-out portion 10 is formed at a portion facing the root portion 11 of the fixing piece 7 of the cover 5, and therefore, the corner portion 12 formed on the side of the cut-out portion 10 is located outside the root portion 11 of the cover 5. It starts to hit the part.

以下、偏向ヨークのコンバーゼンス調整について説明す
る。なお、本実施例においても第５図に示される従来例
の場合と同様に偏向ヨークを傾けることによってコンバ
ーゼンス調整を行うものとする。例えば第２図の矢印Ｅ
方向に絶縁枠ｌを傾けると、第３図に示されるように絶
縁枠１の角部１２よりも外周部りに位置する部分がカバ
ー５の外周部１４を押すこととなり、外周部１４は矢印
Ｆ方向へ後退する。一方、付根部１１は後退することは
ないが、切除部１０がこの付根部をかわす作用を持って
おり、絶縁枠１が付根部１１に当たることはない。The convergence adjustment of the deflection yoke will be explained below. In this embodiment as well, convergence adjustment is performed by tilting the deflection yoke as in the conventional example shown in FIG. For example, arrow E in Figure 2
When the insulating frame l is tilted in the direction shown in FIG. Move back in direction F. On the other hand, although the root portion 11 does not retreat, the cutout portion 10 has the function of dodging this root portion, and the insulating frame 1 does not hit the root portion 11.

本実施例ではこのように絶縁枠１を傾けても、カバー５
の付根部１１に絶縁枠１が当たることはなく、絶縁枠１
はカバー５の外周部１４に当たるので、絶縁枠１を太き
（傾けることが出来る。しかも、絶縁枠１が傾いても、
第４図に示されるように予めカバー５を前方寄りに取り
付けておけば、カバー５が絶縁枠１を押えつける力が損
なわれることはない。In this embodiment, even if the insulating frame 1 is tilted in this way, the cover 5
The insulation frame 1 does not touch the base 11 of the insulation frame 1.
corresponds to the outer periphery 14 of the cover 5, so the insulating frame 1 can be thickened (tilted).Moreover, even if the insulating frame 1 is tilted,
If the cover 5 is attached in advance toward the front as shown in FIG. 4, the force with which the cover 5 presses down on the insulating frame 1 will not be impaired.

発明の効果 以上のように本発明は、絶縁枠の後端部の内周部に切除
部を形成したことにより、偏向ヨークを傾ける際には絶
縁枠の後端部が上記固定用片の付根部に当たって絶縁枠
の揺動運動が規制されるということはなく、たとえカバ
ーを十分に前の方へ押えつけて固定用片をバンドにより
締め付けたとしても、偏向ヨークの傾く範囲が狭くなっ
てしまうことはない。従って偏向ヨークを安定して固定
出来るとともに偏向ヨークを傾けることが出来る範囲を
大きくすることができ、良好にコンバーゼンス調整を行
うことが出来る。Effects of the Invention As described above, in the present invention, by forming a cutout on the inner periphery of the rear end of the insulating frame, when the deflection yoke is tilted, the rear end of the insulating frame is attached to the fixing piece. The rocking movement of the insulating frame is not restricted by hitting the base, and even if the cover is pressed sufficiently forward and the fixing piece is tightened with a band, the tilting range of the deflection yoke will be narrowed. Never. Therefore, the deflection yoke can be stably fixed, the range in which the deflection yoke can be tilted can be increased, and convergence adjustment can be performed satisfactorily.

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

第１図は本発明の実施例における陰極線管用偏向装置の
分解斜視図、第２図は同陰極線管用偏向装置を陰極線管
に装着した状態の断面図、第３図は同陰極線管用偏向装
置の陰極線管に装着して偏向ヨークを傾けた状態の断面
図、第４図は同陰極線管用偏向装置のカバーの固定位置
を変えた場合の要部断面図、第５図は従来の陰極線管用
偏向装置の陰極線管に装着した状態の側面図、第６図は
従来の陰極線管用偏向装置の分解斜視図、第７図は同陰
極線管用偏向装置の陰極線管に装着した状態の断面図、
第８図は同陰極線管用偏向装置の陰極線管に装着して偏
向ヨークを傾けた状態の断面図である。 １・・・・・・絶縁枠 ３・・・・・・コア ５・・・・・・カバー ７・・・・・・固定用片 １０・・・・・・切除部FIG. 1 is an exploded perspective view of a cathode ray tube deflection device according to an embodiment of the present invention, FIG. 2 is a sectional view of the cathode ray tube deflection device attached to the cathode ray tube, and FIG. 3 is a cathode ray of the cathode ray tube deflection device. A cross-sectional view of the deflection yoke mounted on the tube with the deflection yoke tilted; Figure 4 is a cross-sectional view of the main parts of the same cathode-ray tube deflection device when the fixing position of the cover is changed; and Figure 5 is a cross-sectional view of the conventional cathode-ray tube deflection device. 6 is an exploded perspective view of a conventional deflection device for cathode ray tubes, and FIG. 7 is a cross-sectional view of the same deflection device for cathode ray tubes when it is attached to a cathode ray tube.
FIG. 8 is a sectional view of the deflection device for a cathode ray tube in a state where the deflection yoke is tilted when attached to a cathode ray tube. 1...Insulation frame 3...Core 5...Cover 7...Fixing piece 10...Removed portion

Claims (1)

【特許請求の範囲】[Claims] コイルを装着し、陰極線管に装着可能に構成された絶縁
枠と、弾性材で構成され、陰極線管のネック部に固定す
るための筒状の固定用片を備えているとともに上記絶縁
枠の後端部を覆うカバーとを有し、上記絶縁枠の後端部
の内周部に切除部を形成したことを特徴とする陰極線管
用偏向装置。An insulating frame configured to be able to be attached to a cathode ray tube with a coil attached thereto; a cylindrical fixing piece made of an elastic material for fixing to the neck of the cathode ray tube; 1. A deflection device for a cathode ray tube, comprising: a cover for covering an end portion, and a cutout portion is formed at an inner peripheral portion of a rear end portion of the insulating frame.