JP2506586Y2 - Color cathode ray tube - Google Patents

Color cathode ray tube

Info

Publication number
JP2506586Y2
JP2506586Y2 JP1990008024U JP802490U JP2506586Y2 JP 2506586 Y2 JP2506586 Y2 JP 2506586Y2 JP 1990008024 U JP1990008024 U JP 1990008024U JP 802490 U JP802490 U JP 802490U JP 2506586 Y2 JP2506586 Y2 JP 2506586Y2
Authority
JP
Japan
Prior art keywords
spring
magnetic shield
frame
ray tube
cathode ray
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 - Lifetime
Application number
JP1990008024U
Other languages
Japanese (ja)
Other versions
JPH03100348U (en
Inventor
一浩 千原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1990008024U priority Critical patent/JP2506586Y2/en
Publication of JPH03100348U publication Critical patent/JPH03100348U/ja
Application granted granted Critical
Publication of JP2506586Y2 publication Critical patent/JP2506586Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、地磁気やテレビ受像回路等の磁気の影響
によつて色純度の低下を防止するために、これら不要浮
遊磁気をシールドする内部磁気シールドの固定装置を改
良したカラーブラウン管に関するものである。
[Detailed Description of the Invention] [Industrial field of application] The present invention proposes an internal magnetic field that shields unnecessary stray magnetism in order to prevent the deterioration of color purity due to the influence of the earth's magnetism and the magnetism of a television receiver circuit. The present invention relates to a color CRT with an improved shield fixing device.

〔従来の技術〕[Conventional technology]

従来のカラーブラウン管においては地磁気等の外部磁
界を遮蔽するため管内に磁気シールドを収容しており、
この磁気シールドはシヤドウマスクを保持するフレーム
に取付けられている。このような従来の取付構造として
実開昭53-16275号、実開昭54-125573号、特公昭62-1378
7号の各公報に示されるものがあり、その概要を第3図
に示している。
In the conventional color cathode ray tube, a magnetic shield is housed inside the tube to shield external magnetic fields such as the earth's magnetism.
This magnetic shield is attached to the frame that holds the shear mask. As such a conventional mounting structure, Japanese Utility Model No. Sho 53-16275, Japanese Utility Model No. 54-125573, and Japanese Patent Publication No. 62-1378.
There is one shown in each publication of No. 7, and its outline is shown in FIG.

図において、(1)はL字状に形成されたフレーム、
(2)は多数の細孔を有し、かつフレーム(1)の側壁
部に溶接されたシヤドウマスク、(3)はシヤドウマス
ク(2)の反対側に延長してフレーム(1)に取付けら
れた筒状または板状の内部磁気シールドで、電子ビーム
の走行路を覆うように配置されている。(4)は磁気シ
ールド(3)をフレーム(1)に固定するためのスプリ
ングで、4〜5mmの板ばね材を第4図に示すようにV字
状に屈曲させ、中間部に凹部(4a)を形成して構成され
ている。
In the figure, (1) is an L-shaped frame,
(2) is a shed mask having a large number of pores and welded to the side wall of the frame (1), and (3) is a tube extended to the opposite side of the shed mask and attached to the frame (1). It is arranged so as to cover the traveling path of the electron beam with an internal magnetic shield in the shape of a plate or a plate. (4) is a spring for fixing the magnetic shield (3) to the frame (1), and a leaf spring material of 4 to 5 mm is bent into a V shape as shown in FIG. ) Is formed.

このようなスプリング(4)はその両端部(4b)を押
し縮めて磁気シールド(3)およびフレーム(1)の穴
内に挿入し、凹部(4a)を両者に係止した後、押圧力を
解除することによつて三者を一体に固定することが可能
となる。
Such a spring (4) is compressed at both ends (4b) and inserted into the holes of the magnetic shield (3) and the frame (1), and the recess (4a) is locked to both, and then the pressing force is released. By doing so, it becomes possible to fix the three members together.

しかしながら、このようにしてスプリング(4)を取
付ける構造においては、スプリング(4)の両端部(4
b)を押圧した際、その復帰力のため手あるいは治具等
からスプリング(4)が飛び出して飛散し、シヤドウマ
スク(2)に衝突してシヤドウマスク(2)を損傷する
などの欠陥を発生している。なお、スプリング(4)は
フレーム(1)および磁気シールド(3)に穴を開ける
ため、可能な限り小さい方が望ましく、上記欠陥を助長
させている。
However, in the structure in which the spring (4) is mounted in this manner, both ends (4
When b) is pressed, the spring (4) pops out and scatters from the hand or jig due to the restoring force, and it causes a defect such as colliding with the shadow mask (2) and damaging the shadow mask (2). There is. Since the spring (4) has holes in the frame (1) and the magnetic shield (3), it is desirable that the spring (4) be as small as possible, which promotes the above defects.

実開昭60-168251号公報は上述のような欠点を解消す
るためになされたもので、その概要を第5図に示してい
る。第5図(a)はスプリングの自由状態の形状を示し
ており、板状のばね材をV字状に屈曲させ、中間部に凹
部(4a)を形成するとともに遊端側の板の表面を凸凹状
にさせた把手部(4c)を形成して構成されている。
Japanese Utility Model Laid-Open No. 60-168251 has been made to solve the above-mentioned drawbacks, and its outline is shown in FIG. FIG. 5 (a) shows the shape of the spring in a free state. A plate-shaped spring material is bent in a V shape to form a recess (4a) in the middle portion and the surface of the plate on the free end side is formed. The handle portion (4c) is formed to have an uneven shape.

〔考案が解決しようとする課題〕[Problems to be solved by the device]

第5図に示すようなスプリング(4A)の構造では、把
手部(4c)を指で押圧した際、表面の凸凹状によつて手
の指とのすべりを抑制することができる。しかしなが
ら、このような構造であつても、上記した飛散するとい
う欠陥を完全に取り除くことはできていない。第5図
(b)に示すごとくスプリング(4A)を両凹部(4a)が
接するまで把手部(4c)を押圧すると、両端部(4b)の
肩幅(w1)が把手部(4c)の肩幅(w2)より小さくな
り、また両端部(4b)が中心軸に対して内側に向く角度
を有する形状となるため、最大肩幅(w2)を有する把手
部(4c)から指がすべると、引つかかり部が無く、スプ
リング(4A)は飛び出して飛散しやすい欠陥を少なから
ず有している。
With the structure of the spring (4A) as shown in FIG. 5, when the grip portion (4c) is pressed by a finger, the unevenness of the surface can suppress slippage with the finger of the hand. However, even with such a structure, it is not possible to completely eliminate the above-mentioned defect of scattering. As shown in Fig. 5 (b), if the handle (4c) is pressed until the spring (4A) contacts both recesses (4a), the shoulder width (w 1 ) of both ends (4b) becomes the shoulder width of the handle (4c). Since it becomes smaller than (w 2 ), and both ends (4 b) have an angle facing inward with respect to the central axis, when the finger slides from the handle part (4 c) having the maximum shoulder width (w 2 ), There is no catch, and the spring (4A) has many defects that tend to pop out and scatter.

また、スプリング(4A)の復帰力のため、さらに上記
欠陥が助長される。スプリング(4A)の凹部(4a)で内
部磁気シールド(3)をフレーム(1)に確実に固定す
ることが必要であり、スプリング(4A)の復帰力を強く
する傾向にあることから上記欠陥をさらに助長させてい
る。
Further, the above-mentioned defects are further promoted by the restoring force of the spring (4A). Since it is necessary to securely fix the inner magnetic shield (3) to the frame (1) with the recess (4a) of the spring (4A), the restoring force of the spring (4A) tends to be strong, so Further encourages.

この考案は上述のような欠点を解消するためになされ
たもので、スプリングの変形時に遊端側の両端部の肩幅
が最大となり、かつ両端部が中心軸に対して外側に開く
角度を有する形状に構成することにより、スプリングの
取扱いが容易で不良を発生させずに内部磁気シールドへ
の取付作業が良好となるカラーブラウン管を得ることを
目的とする。
The present invention has been made in order to solve the above-mentioned drawbacks, and has a shape in which the shoulder width of both ends on the free end side becomes maximum when the spring is deformed, and both ends have an angle that opens outward with respect to the central axis. It is an object of the present invention to provide a color CRT in which the spring is easy to handle, does not cause a defect, and is easily attached to the internal magnetic shield.

〔課題を解決するための手段〕[Means for solving the problem]

この考案に係るカラーブラウン管は、V字状スプリン
グが変形して凹部が互いに接した時に両端部間の間隔が
両把手部間の間隔より大きくなるようにしたものであ
る。
In the color cathode ray tube according to the present invention, when the V-shaped spring is deformed and the recesses are in contact with each other, the distance between both end portions is larger than the distance between both handle portions.

〔作用〕[Action]

この考案においては、スプリングの遊端側の両端部の
肩幅が最大であるので容易にスプリングを変形させるこ
とができると共に、両端部が外側に開いているので指へ
の係止効果が大きくなる。
In this invention, since the shoulder width of both ends on the free end side of the spring is maximum, the spring can be easily deformed, and since both ends are open outward, the effect of locking the finger is increased.

〔実施例〕〔Example〕

第1図はこの考案の一実施例であるスプリング(4B)
の変形時の形状を示すもので、板状のばね材をV字状に
屈曲させ、中間部に凹部(4a)を形成するとともに遊端
側に凸凹を設けた把手部(4c)と端部(4b)を有してお
り、端部(4b)の肩幅(w3)は把手部(4c)の肩幅
(w4)より大きく、かつ両端部が中心軸に対して外側に
開く角度を有する形状に構成している。そして、上記の
ように構成されたスプリング(4B)の端部(4b)を指で
押圧して取付作業をする際、端部(4b)が最大肩幅
(W3)を有するため、容易にスプリング(4B)を変形さ
せることが可能となる。また、端部(4b)が中心軸に対
して外側に開いているため指への係止効果が大きくな
り、凸凹を設けた把手部(4c)とともに端部(4b)を指
で押圧すると、スプリング(4B)の復帰力のために指よ
り飛び出して飛散していた従来の欠陥を完全に取り除く
ことが可能となり取付作業の効率を向上させることがで
きる。
FIG. 1 is a spring (4B) which is an embodiment of the present invention.
The shape of the deformed plate is shown in the figure. The plate-shaped spring material is bent into a V shape, and the concave portion (4a) is formed in the middle portion and the grip portion (4c) and the end portion are provided with the concave and convex portions on the free end side. (4b), the shoulder width (w 3 ) of the end portion (4b) is larger than the shoulder width (w 4 ) of the handle portion (4c), and both end portions have an angle that opens outward with respect to the central axis. It has a shape. Then, when the pressing to mounting work end portion (4b) with a finger of the configured spring as above (4B), since the end portion (4b) has a maximum shoulder width (W 3), readily spring It is possible to deform (4B). Further, since the end portion (4b) is opened outward with respect to the central axis, the locking effect on the finger is increased, and when the end portion (4b) is pressed with the finger together with the gripped portion (4c) provided with the unevenness, Due to the restoring force of the spring (4B), it is possible to completely eliminate the conventional defect that was ejected from the finger and scattered, and it is possible to improve the efficiency of the mounting work.

なお、第2図に示すごとく一方の端部を屈曲変形さ
せ、他方の端部(4b)に相当する屈曲押圧部(4d)を設
けた構造としてもよく、端部(4b)と屈曲押圧部(4d)
の肩幅(w5)を変形時に最大とし、屈曲押圧部(4d)を
中心軸に対して外側に開く形状に構成すれば、上記実施
例と同様の効果を奏する。
As shown in FIG. 2, one end portion may be bent and deformed, and a bending pressing portion (4d) corresponding to the other end portion (4b) may be provided, and the end portion (4b) and the bending pressing portion may be formed. (4d)
If the shoulder width (w 5 ) is maximized at the time of deformation and the bending pressing portion (4d) is configured to open outward with respect to the central axis, the same effect as in the above embodiment can be obtained.

〔考案の効果〕[Effect of device]

以上のように、この考案によればスプリングの取扱い
が容易となり、不良を発生させずに内部磁気シールドへ
の取付けを良好なものとすることができるという効果が
得られる。
As described above, according to the present invention, it is possible to easily handle the spring, and it is possible to obtain an effect that the spring can be attached to the internal magnetic shield favorably without causing a defect.

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

第1図はこの考案の一実施例であるスプリングの変形時
の形状を示す状態図、第2図はこの考案の他の実施例を
示す状態図、第3図は従来の内部磁気シールドの取付構
造を示す概要図、第4図は第3図における要部斜視図、
第5図(a)は従来のスプリングの自由状態での斜視
図、第5図(b)は従来のスプリングの変形時の形状を
示す状態図である。 図において、(1)はフレーム、(2)はシヤドウマス
ク、(3)は内部磁気シールド、(4B)はスプリング、
(4a)は凹部、(4b)は端部、(4c)は把手部、(4d)
は屈曲押圧部である。 なお、図中同一符号は同一あるいは相当部分を示す。
FIG. 1 is a state diagram showing a deformed shape of a spring which is an embodiment of the present invention, FIG. 2 is a state diagram showing another embodiment of the present invention, and FIG. 3 is a conventional internal magnetic shield mounting. FIG. 4 is a schematic view showing the structure, FIG. 4 is a perspective view of a main part in FIG.
FIG. 5 (a) is a perspective view of a conventional spring in a free state, and FIG. 5 (b) is a state diagram showing a shape of the conventional spring when deformed. In the figure, (1) is a frame, (2) is a shadow mask, (3) is an internal magnetic shield, (4B) is a spring,
(4a) is a concave part, (4b) is an end part, (4c) is a grip part, (4d)
Is a bending pressing portion. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項1】多数の細孔を有するシャドウマスクを支持
するフレームと、電子ビームの走行路を覆い外部磁界を
遮蔽する磁気シールドとが、前記フレームと磁気シール
ドにそれぞれ設けられ互いに整合する穴に挿入された板
状のスプリングによって固定されるものにおいて、 前記スプリングは板状のばね材を全体にほぼV字状を呈
するように二つ折りして構成され、前記穴を通過する先
端部である折曲部と、この折曲部にそれぞれ連なり互い
に接近する方向に凹んで前記フレームと磁気シールドに
係止される凹部と、この凹部にそれぞれ連なる遊端側で
あって凸凹が設けられた把手部と、この把手部にそれぞ
れ連なる端部とからなり、前記両端部は互いに遠ざかる
方向に延在しており、前記スプリングが変形して前記凹
部が互いに接した時に前記両端部間の間隔が前記両把手
部間の間隔より大きくなるようにしたことを特徴とする
カラーブラウン管。
1. A frame for supporting a shadow mask having a large number of pores, and a magnetic shield for covering a traveling path of an electron beam and for shielding an external magnetic field are provided in holes provided in the frame and the magnetic shield and aligned with each other. In the case of being fixed by an inserted plate-shaped spring, the spring is formed by folding a plate-shaped spring material in two so as to have a substantially V-shape as a whole, and is a tip portion that passes through the hole. A curved portion, a concave portion which is connected to the bent portion and is recessed in a direction approaching each other and is locked to the frame and the magnetic shield, and a grip portion which is connected to the concave portion and has a concave and convex portion on a free end side. , Each of which is connected to the handle portion, and the both end portions extend in directions away from each other, and when the spring is deformed and the recesses are in contact with each other. A color cathode ray tube characterized in that a space between the both ends is made larger than a space between the both handle parts.
JP1990008024U 1990-01-29 1990-01-29 Color cathode ray tube Expired - Lifetime JP2506586Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990008024U JP2506586Y2 (en) 1990-01-29 1990-01-29 Color cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990008024U JP2506586Y2 (en) 1990-01-29 1990-01-29 Color cathode ray tube

Publications (2)

Publication Number Publication Date
JPH03100348U JPH03100348U (en) 1991-10-21
JP2506586Y2 true JP2506586Y2 (en) 1996-08-14

Family

ID=31511675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990008024U Expired - Lifetime JP2506586Y2 (en) 1990-01-29 1990-01-29 Color cathode ray tube

Country Status (1)

Country Link
JP (1) JP2506586Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4970304B2 (en) * 2008-02-21 2012-07-04 大和化成工業株式会社 Two-part assembly structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055053U (en) * 1983-09-21 1985-04-17 株式会社東芝 color picture tube

Also Published As

Publication number Publication date
JPH03100348U (en) 1991-10-21

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