JPH06243802A - Neck band for fixing deflection yoke on crt and its manufacture - Google Patents

Abstract

PURPOSE:To uniform the friction resistance and the fastening force of the full surface of band plates by providing a crossing member in which a specific scope of width at the positions symmetric to the rising fastening parts of outer circular band plates is reduced, and forming inner circular band plates sliding to the inner circumferential side through the crossing member. CONSTITUTION:The specific surfaces of the left and the right band plates 11 at the positions symmectric to the fastening members 12 of outer circular band plates 11 having the rising fastening parts 12 are reduced to form width reduction parts 13. While the width reduction parts 13 are crossed staggered each other, inner circular band plates 14 sliding to the inner circumferential surface of the band plates 11 are formed endless through the width reduction parts 13. The band plates 14 are formed in a superposing part at the openings of the band plates 11, and a spot welding is applied so as to make the inner circumferential surface almost in a round condition. As a result, by regulating the contact of the fastening members 12 with a screw, the diameter of the inner circular band plates is reduced together with the reduction of the diameter of the outer circular band plates, and an even friction resistance and fastening force can be obtained over the full circumference of the band plates.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、ＣＲＴ陰極線管を構成
するガラス外管、すなわちバルブのネック（細管部）に
偏向ヨーク（偏向コイル）を固定するためのネックバン
ドおよびその製造法に関し、円筒状のバルブネックに対
する偏向ヨークの周方向均等な締め付け力配分による完
全な固定を可能にすることを目的とする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass outer tube forming a CRT cathode ray tube, that is, a neck band for fixing a deflection yoke (deflection coil) to a neck (narrow tube portion) of a bulb, and a method for manufacturing the same. The purpose of the present invention is to enable complete fixing by uniformly distributing the tightening force in the circumferential direction of the deflection yoke with respect to the valve neck of the shape.

【０００２】[0002]

【従来の技術】ＣＲＴに対する偏向ヨークの固定は、こ
れまで一般的に図１０に示したように、ＣＲＴコーン１
の背面側に突出させたところの、電子銃を内蔵したネッ
ク部２に、コイルを巻いたコア５を備えた分割可能なセ
パレータ４を、スリットを入れ、しかも対称位置に外方
に向けた突起部４ｂを形成した尾部４ａに、有端環状に
形成した帯板６の両端を外方向に曲げて一対の対立した
締め付け部７，８を形成するとともに、該締め付け部
７，８に締め付けネジ９を螺入させ、上記締め付け部
７，８を相互に接離調整して帯板の径を自在に異ならし
めるようにした締め付けバンドを用い、該バンドの嵌合
穴６ｂを前記した尾部４ａの突起部４ｂに嵌め合わせた
状態にて締め付けネジ９により締め付け固定するように
したものが用いられている。2. Description of the Related Art The deflection yoke is fixed to a CRT by using a CRT cone 1 as generally shown in FIG.
The protrusion 2 that is formed by projecting to the back side of the device has slits formed on the neck portion 2 containing the electron gun and having a separable separator 4 having a core 5 wound with a coil, and is outwardly symmetrically positioned. At the tail portion 4a forming the portion 4b, both ends of the band plate 6 formed in an end ring shape are bent outward to form a pair of confronting tightening portions 7 and 8, and the tightening screw 9 is tightened on the tightening portions 7 and 8. By using a tightening band in which the tightening portions 7 and 8 are adjusted to come into contact with and separate from each other so that the diameters of the strips can be made different from each other, and the fitting hole 6b of the band is used to project the tail portion 4a. It is used that it is tightened and fixed by a tightening screw 9 in a state of being fitted to the portion 4b.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、上記し
た従来の締め付け用ネックバンドを用いる場合にあって
は、環状に形成した帯板６の両端部に形成したところの
外方へ向けて立ち上がらせた一対の締め付け部７，８間
に隙間を生じ、その結果その隙間の部分の締め付け力が
得られないばかりでなく、締め付けに際して締め付け部
７，８のそれぞれの立ち上がり角部分が内側に入り込ん
で軸芯がずれ、偏向ヨークの取り付け位置にズレを生じ
て画面焦点に狂いを生ずる等の問題がある。However, in the case of using the above-mentioned conventional tightening neck band, the band plate 6 formed in an annular shape was made to stand up toward the outside formed at both ends. A gap is created between the pair of tightening portions 7 and 8, and as a result, not only the tightening force of the gap portion cannot be obtained, but also the respective rising angle portions of the tightening portions 7 and 8 enter inside during tightening, and However, there is a problem in that the position of the deflection yoke is displaced and the screen focus is distorted.

【０００４】またセパレータの尾部に対する締め付けバ
ンドの内周面の接触面積が少ないところから、偏向ヨー
クの固定が不十分となるばかりでなく、締め付けに際し
てより大きな締め付けトルクが必要とされ、そのために
上記立ち上がり角部をはじめとし、周方向の特定箇所の
みに局所的に過度の締め付け応力がかかり、ときとして
電子銃を内蔵したネック部分を破損したりすることが多
かった。 しかもこの傾向はテレビの大型化に伴う偏向
ヨークの拡大傾向とも関連して一層顕著になりつつある
のが現状である。Further, since the contact area of the inner peripheral surface of the tightening band with respect to the tail portion of the separator is small, not only is the deflection yoke not sufficiently fixed, but also a larger tightening torque is required for tightening, and therefore the above-mentioned rising is caused. Excessive tightening stress is locally applied only to a specific portion in the circumferential direction including the corners, and the neck portion containing the electron gun is often broken. In addition, this tendency is becoming more remarkable in connection with the tendency of expansion of the deflection yoke accompanying the increase in size of the television.

【０００５】[0005]

【課題を解決するための手段】そこで本発明にあって
は、上記した従来技術における種々の課題を解決し、偏
向ヨークの固定に際し、締め付けバンドの全周方向にわ
たる均等でかつ十分な接触面積を確保して摩擦抵抗を多
くし、しかも全周にわたる均等な締め付け応力負荷に対
応させることにより、過度の締め付け力を無くし、しか
も偏向ヨークの十分な固定を可能としたものである。In view of the above, the present invention has solved the above-mentioned various problems in the prior art and provided a uniform and sufficient contact area over the entire circumferential direction of the tightening band when fixing the deflection yoke. By securing the frictional resistance and increasing the frictional resistance and corresponding to the uniform tightening stress load over the entire circumference, an excessive tightening force can be eliminated and the deflection yoke can be sufficiently fixed.

【０００６】すなわち具体的には、一部を開口させて環
状に形成された帯板の両端部に対立させた一対の立ち上
がり締め付け部をネジにより相互に接離調整して内径を
変化させるようにした偏向ヨーク固定用の締め付けバン
ドであって、該バンドは、立ち上がり締め付け部を設け
た外環帯板の左右一対の立ち上がり締め付け部と対称位
置の一定範囲を略半幅に減幅させて左右の帯板を食い違
い状に交差させるとともに、該交差部を介して、前記外
環帯板の内周側に摺接する内環帯板を無端状に形成して
なることを特徴とするＣＲＴにおける偏向ヨーク固定用
ネックバンドに関する。That is, specifically, a pair of rising tightening portions opposed to both ends of an annularly formed band plate, which is partially opened, are adjusted so as to be brought into and out of contact with each other by screws to change the inner diameter. A tightening band for fixing the deflection yoke, which is formed by reducing a certain range of symmetrical positions to a pair of left and right rising tightening parts of an outer ring strip provided with rising tightening parts to approximately half width. Deflection yoke fixing in a CRT, characterized in that the plates are crossed in a staggered manner, and an inner ring band plate slidingly contacting the inner circumference side of the outer ring band plate is formed endlessly through the crossing portion. For neck band.

【０００７】さらに本発明は、有端環状に形成された帯
板の、中間部における一定間隔を略半幅に減幅するとと
もに、一端のみを外側に起立させて締め付け部を形成し
た二枚一組の環状体を成型する工程と、それぞれの環状
体の締め付け部を対向させるべく締め付け部を起立させ
た側半分を外側に、また締め付け部を有しない側半分を
内側に、それぞれ互いに位置するように前記減幅部で食
い違い状に交差させて組みつける工程と、それぞれの環
状体の他端を突き合わせて相互に一体に接合させる工程
とからなるＣＲＴにおける偏向ヨーク固定用ネックバン
ドの製造方法にも関する。Further, according to the present invention, a set of two sheets in which a fixed interval in an intermediate portion of a band plate formed in an end ring shape is reduced to about half width and one end is erected outward to form a tightening portion. The step of molding the annular body of, and the side half where the tightening portion is erected so that the tightening portions of the respective annular bodies are opposed to each other, and the side half having no tightening portion are positioned inside, The present invention also relates to a method for manufacturing a neckband for fixing a deflection yoke in a CRT, which comprises a step of assembling with crossing in a staggered manner at the reduced width portion and a step of abutting the other ends of the respective annular members and integrally joining them to each other. .

【０００８】[0008]

【作用】外環帯板の端部に設けた一対の立ち上がり締め
付け部をネジにより相互に接離調整すると、これに応じ
て外環帯板の径が縮小されるとともに、交差部を介して
内環帯板が上記外環帯板の内周面に沿って、しかも外環
帯板とは反対の方向に摺動移動しながら次第に径が縮小
・または拡大され、外環帯板両端部間にすき間を生ずる
ことなく帯板の径を変動させて全周面にわたり均一な締
め付けトルクを生ずる。When the pair of rising tightening portions provided at the ends of the outer ring band plate are adjusted to be brought into contact with or separated from each other by the screws, the diameter of the outer ring band plate is correspondingly reduced, and the inner ring band plate is internally crossed through the intersection. The diameter of the annulus is gradually reduced or expanded along the inner peripheral surface of the outer annulus and in the opposite direction to the outer annulus, and the diameter is gradually reduced or expanded. The diameter of the strip is changed without creating a gap to generate a uniform tightening torque over the entire peripheral surface.

【０００９】また環状体の他端を突き合わせて相互に一
体に接合させることにより、二枚の環状体を一体化させ
ることができ、これにより上記した外環帯板両端部間に
すき間を生ずることがなく、帯板の径を変動させて全周
面にわたり均一な締め付けトルクを生ずる偏向ヨーク固
定用ネックバンドを製造することができる。Further, by joining the other ends of the annular body to each other and integrally joining them together, the two annular bodies can be integrated with each other, thereby creating a gap between the both ends of the outer ring strip. Therefore, it is possible to manufacture the deflection yoke fixing neck band that produces a uniform tightening torque over the entire peripheral surface by varying the diameter of the strip plate.

【００１０】[0010]

【実施例】以下において本発明の具体的な内容を図１お
よびその製造方法をあらわした図２〜９の実施例をもと
に説明すると、図１に示したものは、一部を開口させて
環状に形成された帯板の、両端部に対立させた一対の立
ち上がり締め付け部をネジにより相互に接離調整して内
径を変化させるようにした偏向ヨーク固定用の締め付け
バンドを示す。EXAMPLES The concrete contents of the present invention will be described below with reference to FIG. 1 and the examples of FIGS. 2 to 9 showing the manufacturing method thereof. 2 shows a tightening band for fixing a deflection yoke in which a pair of rising tightening portions opposed to each other at both ends of a strip plate formed in an annular shape are adjusted to come into contact with and separate from each other by screws to change an inner diameter.

【００１１】すなわち該バンドは外環帯板１１，１１の
開口端を外側に立ち上がらせて一対の立ち上がり締め付
け部１２，１２を対立させるとともに、該外環帯板１
１，１１における左右一対の立ち上がり締め付け部１
２，１２と対称位置にある左右それぞれの外環帯板１
１，１１の一定範囲の部分に凹部１３ａを形成すること
により該部分を略半幅に減幅させて減幅部１３，１３を
形成し、しかもその両減幅部１３，１３を互いに食い違
い状に交差させるとともに、該交差させた減幅部１３，
１３を介して、上記外環帯板１１，１１の内周側に摺接
する内環帯板１４を無端状に形成してなる。That is, the band makes the open ends of the outer ring strips 11 and 11 stand up to make the pair of rising tightening portions 12 and 12 face each other, and the outer ring strip 1
A pair of left and right rising tightening portions 1 and 1
Left and right outer ring strips 1 that are symmetrical to 2 and 12
By forming a concave portion 13a in a certain range of 1 and 11, the portion is reduced to a substantially half width to form the reduced width portions 13 and 13, and the reduced width portions 13 and 13 are staggered from each other. The crossed width-reducing portions 13,
An inner ring strip 14 is slidably formed on the inner ring sides of the outer ring strips 11 and 11 via 13 to form an endless shape.

【００１２】内環帯板１４はこの場合外環帯板１１，１
１の開口部に位置する箇所において、その一端に板厚分
だけ外側に拡大させて重ね部分を形成するとともに、こ
の部分を他端に重ね合わせて内周面が面一となるように
した状態において、該重ね合わせ部分にスポット溶接Ｗ
（図１中の矢印を参照）を施し、あるいはその他の手段
によりその内周面が略真円に近い状態となるように一体
に構成して図１にも示したように無端状に形成する。The inner ring strip 14 is in this case the outer ring strip 11, 1.
A state in which, at a position located at the opening of No. 1, one end thereof is expanded outward by a plate thickness to form a lapped portion, and this portion is laid on the other end so that the inner peripheral surface is flush. Spot welding W at the overlapping portion
(Refer to the arrow in FIG. 1) or by other means, the inner peripheral surface is integrally formed so as to be in a state close to a substantially perfect circle, and is formed endlessly as shown in FIG. .

【００１３】つぎに上記した偏向ヨーク固定用締め付け
バンドの製造方法について説明すると、図２に示したよ
うにまず第１に、有端環状に形成された帯板の、中間部
における一定間隔を略半幅に減幅させた減幅部１３を有
するとともに、一端のみを外側に起立させて締め付け部
１２を形成した二枚一組の環状体Ｒ，Ｒを成型する。Next, a method of manufacturing the above-mentioned tightening band for fixing the deflection yoke will be described. First, as shown in FIG. 2, firstly, a constant interval in the middle portion of the band plate formed in an end ring shape is set to be substantially constant. A pair of annular bodies R, R each having a width-reduced portion 13 reduced to a half width and having only one end thereof erected outward to form the tightening portion 12 is molded.

【００１４】この一対の環状体Ｒ，Ｒを、互いの減幅部
１３，１３の凹部１３ａ，１３ａを向け合った状態にて
軸方向に重ね合わせるとともに、それぞれの環状体Ｒ，
Ｒの締め付け部１２，１２を対向させる。 この場合に
おいて、一方の環状体Ｒの締め付け部１２を起立させた
側の半分の部分を、他方の環状体Ｒにおける締め付け部
１２を有しない側の半分の部分の外側に位置させるとと
もに、他方の環状体Ｒの締め付け部１２を起立させた側
の半分の部分を他方の環状体Ｒにおける締め付け部１２
を有しない側の半分の部分の外側に位置させるべく、互
いに前記減幅部１３，１３において食い違い状に交差さ
せて組みつける。The pair of annular bodies R, R are axially superposed with the recesses 13a, 13a of the width-reduced portions 13, 13 facing each other, and the annular bodies R, R respectively.
The tightening portions 12, 12 of R are made to face each other. In this case, the half portion of the one annular body R on the side where the fastening portion 12 is erected is positioned outside the half portion of the other annular body R on the side not having the fastening portion 12, and the other half The half portion of the annular body R on the side where the tightening portion 12 is erected is the tightening portion 12 of the other annular body R.
In order to locate it on the outer side of the half part on the side not having, the cross sections are assembled in the reduced width portions 13 and 13 in a staggered manner.

【００１５】そして最後に、両環状体Ｒ，Ｒの締め付け
部１２を有しない側（内環帯板１４）の開口端部を相互
に一体となるように接合させる。 なおこの場合におけ
る接合方法としては、図１に示したように、片方の端部
を、その板圧分だけ外周側に拡開させるとともに、これ
を他方の端部に、双方により形成される内周面が面一と
なるように重ね合わせた状態において、その重ね合わせ
部分を矢印にて示したようにスポット溶接を施し、ある
いは図３に示したように内環帯板１４，１４の両端部を
半幅分ずつ切削して重ね合わせてスポット溶接Ｗを施す
ようにしてもよい。Finally, the open ends of the two annular bodies R, R on the side not having the tightening portion 12 (the inner ring strip 14) are joined together so as to be integral with each other. As a joining method in this case, as shown in FIG. 1, one end is expanded to the outer peripheral side by the plate pressure, and the other end is formed by both ends. In a state where the peripheral surfaces are superposed on each other, spot welding is performed on the superposed portions as shown by arrows, or both end portions of the inner ring strips 14, 14 as shown in FIG. The spot welding W may be performed by cutting and cutting each half width and overlapping them.

【００１６】また図４の（Ａ）（Ｂ）に示したように、
一方の内環帯板１４の先端部を凸状に、また他方の内環
帯板１４の先端部をこれに対応する形状の凹部に形成
し、これを相互に所謂入子状に組みつけたうえで、該部
分に溶接Ｗを施し、あるいは図５およびその断面をあら
わした図６に示すように、一方の内環帯板１４の先端部
を、その板厚分だけ外周方向に拡径させるとともに、該
部分に係止穴１４ａを設け、さらに他方の内環帯板１４
の先端部の一部を外側に折り返して、該折り返し部分１
４ｂを前記した係止穴１４ａ内に係着させるようにする
と、接合強度が一層増大する。As shown in FIGS. 4A and 4B,
One end of the inner ring strip 14 is formed in a convex shape, and the other end of the inner ring strip 14 is formed in a recess having a corresponding shape, and these are assembled together in a so-called nesting manner. Then, welding W is applied to the portion, or, as shown in FIG. 5 and FIG. 6 showing the cross section thereof, the tip portion of one inner ring strip 14 is expanded in the outer peripheral direction by the plate thickness. At the same time, a locking hole 14a is provided in that portion, and the other inner ring strip 14
Part of the tip of the fold back to the outside,
When 4b is engaged in the locking hole 14a, the joint strength is further increased.

【００１７】さらに図７に示したように、双方の内環帯
板１４，１４の各先端部を、それぞれ半幅分だけ延長す
るとともに、該延長部分を外側に円形に巻き返して、該
巻き返し部分１４ｃ，１４ｄを、その軸線方向に食い違
い状に重ね、かつその両巻き返し部分１４ｃ，１４ｄの
内軸部分に軸棒１４ｅを圧入させると、該部分において
ヒンジ効果を生ずるので締め付ける箇所如何によっては
締め付け箇所に一層良好に馴染みやすくなり偏向ヨーク
の固定に際し、一層良好な結果をもたらすことが期待で
きる。Further, as shown in FIG. 7, the respective tip portions of both inner ring strips 14, 14 are extended by a half width, and the extended portions are rewound in a circular shape to the rewound portion 14c. , 14d are overlapped in a staggered manner in the axial direction, and the shaft bar 14e is press-fitted into the inner shaft portions of the two rewound portions 14c, 14d, a hinge effect is generated in the portions, so that depending on where to tighten, the tightening location may be different. It is expected that it will be easier to fit in and that better results will be obtained when fixing the deflection yoke.

【００１８】さらに図８に示したように、両内環帯板１
４，１４の各先端部を、互いに巻き込んで所謂巻はぜ状
に接合してもよく、また図９に示したように、単純に両
端部を突き合わせて突き合わせ溶接Ｗを施して接合する
ようにしてもよい。 さらに締め付け部１２，１２には
ネジ穴１２ａ，１２ａがそれぞれ開設されており、この
ネジ穴１２ａ，１２ａに締め付けネジ（図示省略）を螺
入させて一対の締め付け部１２，１２を相互に接離させ
ることにより内径を縮小または拡大させるようにして用
いる。Further, as shown in FIG. 8, both inner ring strips 1
The tip portions of 4, 14 may be wound together and joined in a so-called spiral shape, or, as shown in FIG. 9, both ends are simply butted and butt welding W is performed to join them. May be. Further, screw holes 12a and 12a are formed in the tightening portions 12 and 12, respectively, and a tightening screw (not shown) is screwed into the screw holes 12a and 12a to bring the pair of tightening portions 12 and 12 into contact with and separate from each other. By doing so, the inner diameter is reduced or expanded before use.

【００１９】[0019]

【発明の効果】本発明は上記した通り、偏向ヨーク固定
用の締め付けバンドの構成を、立ち上がり締め付け部を
設けた外環帯板の左右一対の立ち上がり締め付け部と対
称位置の一定範囲を略半幅に減幅させて左右の帯板を食
い違い状に交差させるとともに、該交差部を介して、前
記外環帯板の内周側に摺接する内環帯板を無端状に形成
してなるものであるために、有端管状に形成した帯板の
両端部に形成したところの外方に向けて立ち上がらせた
一対の締め付け部間に透き間を生ずることがなく、外環
帯板の径の縮小・各大に伴って内環帯板の内径が間接的
に、同じく縮小・拡大されるために、局部的な締め付け
応力が作用することがなく、したがって締め付けネジに
よる締め付けに伴って帯板の全周にわたり均等な摩擦抵
抗と、締め付け力を得ることができる。As described above, according to the present invention, the structure of the tightening band for fixing the deflection yoke is configured so that the fixed range of symmetrical positions with the pair of left and right rising tightening portions of the outer ring strip provided with the rising tightening portions is approximately half width. The left and right strips are reduced in width so as to intersect each other in a staggered manner, and an inner ring strip that slidably contacts the inner circumferential side of the outer ring strip is formed endlessly through the intersecting portion. For this reason, there is no gap between the pair of tightening parts that are formed outward at the ends of the end plate formed into a tubular shape, and the diameter of the outer ring band plate is reduced. Since the inner diameter of the inner ring band plate is indirectly reduced and expanded as the size increases, local tightening stress does not act, and therefore the entire circumference of the band plate is tightened by tightening the tightening screws. Uniform friction resistance and tightening force It is possible to obtain.

【００２０】また締め付けに際して締め付け部のそれぞ
れの立ち上がり角部分が内側に入り込んで軸芯がずれ、
偏向ヨークの取り付け位置にズレを生じて画面焦点に狂
いを生じたり、また上記立ち上がり角部をはじめとし、
周方向の特定箇所のみに局所的に過度の締め付け応力が
かかり、ときとして電子銃を内蔵したネック部分を破損
したりすることもなくなり、比較的緩い締め付け力によ
り偏向ヨークの十分な固定をはかることができる。When tightening, each rising angle portion of the tightening portion enters inside and the shaft center shifts,
There is a deviation in the mounting position of the deflection yoke and the screen focus is distorted.
Excessive tightening stress is locally applied only to a specific part in the circumferential direction, and sometimes the neck part with built-in electron gun is not damaged, and the deflection yoke is sufficiently fixed with a relatively loose tightening force. You can

【００２１】さらに上記した偏向ヨーク固定用締め付け
バンドの製造に際しては、有端環状に形成された帯板
の、中間部における一定間隔を略半幅に減幅するととも
に、一端のみを外側に起立させて締め付け部を形成した
二枚一組の環状体を成型する工程と、それぞれの環状体
の締め付け部を対向させるべく互いに締め付け部を起立
させた側半分を外側に、また締め付け部を有しない側半
分を内側に、それぞれ互いに位置するように前記減幅部
で食い違い状に交差させて組みつける工程と、それぞれ
の環状体の他端を突き合わせて相互に一体に接合させる
工程とからなるものであるために、目的とする締め付け
バンドの製造がきわめて容易となり、またコストの著し
い低減をはかることができる。Further, when manufacturing the above-mentioned tightening band for fixing the deflection yoke, the fixed interval in the middle portion of the band plate formed in the end ring shape is reduced to about half width, and only one end is raised outside. A step of molding a pair of annular bodies with tightening portions formed, and the side halves where the tightening portions are erected so that the tightening portions of the respective annular bodies are opposed to each other, and the side halves without the tightening portions Inside, and the steps of assembling by crossing each other at the width-reduced portions so that they are located mutually, and the step of abutting the other ends of the respective annular bodies and integrally joining them to each other. In addition, the production of the intended tightening band becomes extremely easy, and the cost can be remarkably reduced.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例であるＣＲＴにおける偏向ヨ
ーク固定用ネックバンドの、締め付けネジを取り外した
状態の斜視図。FIG. 1 is a perspective view of a deflection yoke fixing neck band of a CRT that is an embodiment of the present invention with a tightening screw removed.

【図２】図１に示した偏向ヨーク固定用ネックバンドの
組み立て状態をあらわした分解斜視図。2 is an exploded perspective view showing an assembled state of the deflection yoke fixing neck band shown in FIG. 1. FIG.

【図３】本発明に係わる偏向ヨーク固定用ネックバンド
を製造するための、内環帯板の別の接合状態をあらわし
た部分拡大斜視図。FIG. 3 is a partially enlarged perspective view showing another joined state of the inner ring strips for manufacturing the deflection yoke fixing neck band according to the present invention.

【図４】本発明に係わる偏向ヨーク固定用ネックバンド
を製造するための、内環帯板のさらに別の接合状態をあ
らわした部分拡大斜視図。FIG. 4 is a partially enlarged perspective view showing still another joined state of the inner ring band plate for manufacturing the deflection yoke fixing neck band according to the present invention.

【図５】本発明に係わる偏向ヨーク固定用ネックバンド
を製造するための、内環帯板のさらに別の接合状態をあ
らわした部分拡大斜視図。FIG. 5 is a partially enlarged perspective view showing still another joined state of the inner ring band plate for manufacturing the deflection yoke fixing neck band according to the present invention.

【図６】図５におけるＡ−Ａ線矢印部分の断面図。6 is a cross-sectional view taken along the line AA in FIG.

【図７】本発明に係わる偏向ヨーク固定用ネックバンド
を製造するための、内環帯板のさらに別の接合状態をあ
らわした部分拡大斜視図。FIG. 7 is a partially enlarged perspective view showing still another joined state of the inner ring strips for manufacturing the deflection yoke fixing neck band according to the present invention.

【図８】本発明に係わる偏向ヨーク固定用ネックバンド
を製造するための、内環帯板のさらに別の接合状態をあ
らわした部分拡大斜視図。FIG. 8 is a partially enlarged perspective view showing still another joining state of the inner ring strips for manufacturing the deflection yoke fixing neck band according to the present invention.

【図９】本発明に係わる偏向ヨーク固定用ネックバンド
を製造するための、内環帯板のさらに別の接合状態をあ
らわした部分拡大斜視図。FIG. 9 is a partial enlarged perspective view showing still another joined state of the inner ring strips for manufacturing the deflection yoke fixing neck band according to the present invention.

【図１０】従来の偏向ヨーク固定用ネックバンドの取り
付け状態をあらわしたＣＲＴ後部の分解斜視図。FIG. 10 is an exploded perspective view of a rear portion of a CRT showing a mounting state of a conventional deflection yoke fixing neck band.

【符号の説明】[Explanation of symbols]

Ｒ 環状体 １１ 外環帯板 １２ 締め付け部 １２ａ ネジ穴 １３ 減幅部 １３ａ 凹部 １４ 内環帯板 １４ａ 係止穴 １４ｂ 折り返し部 １４ｃ 巻き返し部分 １４ｄ 巻き返し部分 １４ｅ 軸棒 R annular body 11 outer ring band plate 12 tightening part 12a screw hole 13 reduced width part 13a recessed part 14 inner ring band plate 14a locking hole 14b folded part 14c rewound part 14d rewound part 14e shaft rod

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 一部を開口させて環状に形成された帯板
の両端部に対立させた一対の立ち上がり締め付け部をネ
ジにより相互に接離調整して内径を変化させるようにし
た偏向ヨーク固定用の締め付けバンドであって、該バン
ドは、立ち上がり締め付け部を設けた外環帯板の左右一
対の立ち上がり締め付け部と対称位置の一定範囲を略半
幅に減幅させて左右の帯板を食い違い状に交差させると
ともに、該交差部を介して、前記外環帯板の内周側に摺
接する内環帯板を無端状に形成してなることを特徴とす
るＣＲＴにおける偏向ヨーク固定用ネックバンド。1. A deflection yoke fixing in which a pair of rising tightening portions opposed to both ends of an annular band plate partially opened are adjusted to be brought into contact with and separated from each other by screws to change an inner diameter. A tightening band for use in which the left and right band plates are staggered by reducing a certain range of a symmetrical position with a pair of left and right rising tightening parts of an outer ring band plate provided with rising tightening parts to approximately a half width. A neckband for fixing a deflection yoke in a CRT, characterized in that an inner ring band plate is formed in an endless shape so as to intersect with the outer ring band plate and slidably contact the inner ring side of the outer ring band plate through the crossing portion. 【請求項２】 有端環状に形成された帯板の、中間部に
おける一定間隔を略半幅に減幅するとともに、一端のみ
を外側に起立させて締め付け部を形成した二枚一組の環
状体を成型する工程と、それぞれの環状体の締め付け部
を対向させるべく締め付け部を起立させた側半分を外側
に、また締め付け部を有しない側を内側に、それぞれ互
いに位置するように前記減幅部で食い違い状に交差させ
て組みつける工程と、それぞれの環状体の他端を突き合
わせて相互に一体に接合させる工程とからなるＣＲＴに
おける偏向ヨーク固定用ネックバンドの製造方法。2. A set of two annular bodies in which a fixed interval in an intermediate portion of a band plate formed in an end ring shape is reduced to about a half width, and only one end is erected outward to form a tightening portion. The step of molding, and the side half where the tightening portions are erected so that the tightening portions of the respective annular bodies are opposed to each other on the outside, and the side not having the tightening portions is on the inside, and the width-reducing portion is positioned so as to be positioned relative to each other. 2. A method of manufacturing a neck band for fixing a deflection yoke in a CRT, comprising the steps of assembling by crossing each other in a staggered manner, and the step of abutting the other ends of the respective annular bodies and integrally joining them together.