KR200157068Y1 - Checker for shadow mask frame of cathode ray tube - Google Patents

Checker for shadow mask frame of cathode ray tube Download PDF

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Publication number
KR200157068Y1
KR200157068Y1 KR2019930026016U KR930026016U KR200157068Y1 KR 200157068 Y1 KR200157068 Y1 KR 200157068Y1 KR 2019930026016 U KR2019930026016 U KR 2019930026016U KR 930026016 U KR930026016 U KR 930026016U KR 200157068 Y1 KR200157068 Y1 KR 200157068Y1
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South Korea
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frame
measuring
shadow mask
present
line
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KR2019930026016U
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Korean (ko)
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KR950015567U (en
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권상봉
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김영남
오리온전기주식회사
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Publication of KR950015567U publication Critical patent/KR950015567U/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/42Measurement or testing during manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

본 고안은 프레임의 전수검사가 가능한 신규한 측정장치를 개시한다.The present invention discloses a novel measuring device capable of inspecting the entire frame.

프레임은 섀도우마스크를 지지하여 칼라브라운관의 화질을 좌우하는 주요한 부재임에도 종래 적절한 측정이 불가능하여 일부를 발취검사하는데 그쳤다.Although the frame is a major member that supports the shadow mask and influences the image quality of the color CRT, it is not possible to properly measure the conventional part, and only a part of the inspection is performed.

본 고안에서는 프레임측벽이 밀착될수 있는 측정벽에 기준선을 표시하여 프레임을 이에 밀착시키는 것만으로 허용여부를 즉시 판단할수 있도록 함으로써 프레임의 전수검사가 가능하도록 하여 칼라브라운관의 품질을 향상시켰다.In the present invention, the quality of the color CRT is improved by displaying the reference line on the measurement wall to which the frame side wall can be closely attached and immediately determining whether the frame is allowed.

Description

프레임 검사장치Frame inspection equipment

제1도는 칼라브라운관의 부분절제단면도.1 is a partial cross-sectional view of the color-brown tube.

제2도는 본 고안 검사장치 및 프레임을 보이는 사시도.Figure 2 is a perspective view showing the inspection device and the frame of the present invention.

제3도는 제2도의 III 방향 측면도이다.3 is a side view taken along III direction of FIG. 2.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1,2 : 측정블록 3 : 기준면1,2: measuring block 3: reference plane

4,5 : 측정벽 6 : 측정선4,5 measuring wall 6: measuring line

F : 프레임(frame)F: frame

본 고안은 칼라브라운관의 제조에 관한 것으로, 특히 프레임(frame)을 검사하는 장치에 관한 것이다.The present invention relates to the manufacture of color-brown tubes, and more particularly to an apparatus for inspecting a frame (frame).

칼라브라운관은 색선별수단으로서 일반적으로 섀도우마스크(shadow mask)를 사용하고 있는데, 섀도우마스크는 다수의 색선별구멍이 형성되어 소정의 형상으로 성형된 금속박판이므로 자체강도가 거의 없다.The color brown tube generally uses a shadow mask as a means of color selection. Since the shadow mask is a metal thin plate formed in a predetermined shape by forming a plurality of color selection holes, there is little strength.

이에따라 섀도우마스크는 제1도에 도시된 바와같이 프레임에 의해 지지되는 것이 일반적이다.Accordingly, the shadow mask is generally supported by the frame as shown in FIG.

제1도에서 섀도우마스크(M)는 프레임(F)에 접합되고, 이 프레임(F)을 홀더스프링(holder spring; H)에 의해 패널(panel; P)내측의 스터드 핀(stud pin; P)에 결합함으로써 섀도우마스크(M)가 형광면(S)과 일정한 간격을 유지하도록 지지하고 있다.In FIG. 1, the shadow mask M is bonded to the frame F, and the frame F is connected to the stud pin P inside the panel P by a holder spring H. In FIG. The shadow mask M is supported to be held at a constant distance from the fluorescent surface S by being bonded thereto.

이와같이 프레임(F)은 섀도우마스크(M)와 형광면(S)의 상대적 간격을 결정하여 완성된 브라운관의 색순도등 화질을 결정하게 되므로, 그 정도(精度)관리는 매우 중요하다. 특히 프레임(F)의 측벽높이(소위 Z값)는 섀도우마스크(M)의 곡률자체를 변화시킬수 있는 매우 중요한 관리치수이다. 그러나 이 측벽은 그 상단 거어스(girth)가 곡선으로 이루어져 측정이 용이하지 않으므로 종래에는 일부 프레임(F)만을 발취(sample)하여 통상의 측정장치로 일부측정점만을 측정하는 것이 고작이었다.As such, the frame F determines the relative distance between the shadow mask M and the fluorescent surface S to determine the image quality such as color purity of the finished CRT, and thus, accuracy management is very important. In particular, the side wall height (so-called Z value) of the frame F is a very important management dimension that can change the curvature of the shadow mask M itself. However, since the upper girth of the sidewalls is curved and not easy to measure, conventionally, only some frames F are sampled to measure only some measurement points with a conventional measuring device.

이와같은 종래의 문제점을 감안하여, 본 고안의 목적은 프레임의 전 거어스를 측정할수 있으면서도 그 측정이 극히 용이하여 전수검사가 가능한 측정장치를 제공하는 것이다.In view of such a conventional problem, an object of the present invention is to provide a measuring device capable of measuring the total gauze of the frame, but also the measurement is very easy.

상술한 목적을 달성하기 위해 본 고안 측정장치는 프레임의 적어도 한 측벽이 밀착될수 있으며, 이 측벽의 기준 거어스를 나타내는 측정선이 표시되는 측정벽을 가지는 측정블록을 구비하는 것을 특징으로 한다.In order to achieve the above object, the measuring device of the present invention is characterized in that at least one side wall of the frame may be in close contact with the measuring block having a measuring wall on which a measuring line indicating a reference gauze of the side wall is displayed.

본 고안의 바람직한 특징에 의하면 이 측정블록은 프레임의 장변과 단변에 대해 2개가 대략 "L"자형으로 배치되며, 양 측정블록간에는 프레임의 뒤틀림을 확인할수 있는 평면상태의 기준면이 연장된다.According to a preferred feature of the present invention, two measuring blocks are arranged in an approximately "L" shape for the long side and the short side of the frame, and the reference plane in a planar state can be extended between the two measuring blocks to check the distortion of the frame.

이하 첨부된 도면을 참조하여 본 고안의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제2도에서, 본 고안에 의한 측정장치는 서로 "L"자형으로 인접배치된 두 측정블록(1,2)과 그 하부에 연장되는 한 기준면(3)을 구비한다.In FIG. 2, the measuring device according to the present invention has two measuring blocks 1, 2 arranged adjacent to each other in an "L" shape and one reference plane 3 extending thereunder.

두 측정블록(1,2)은 각각 프레임(F)의 장변측벽(W1)과 단변측벽(W2)에 대응하는 길이를 가지며, 각각 프레임(F)의 두 측벽(W1,W2)이 밀착될수 있는 측정벽(4,5)을 구비한다.The two measuring blocks 1 and 2 each have a length corresponding to the long side wall W1 and the short side wall W2 of the frame F, and the two sidewalls W1 and W2 of the frame F may be in close contact with each other. The measuring walls 4 and 5 are provided.

각 측정벽(4,5)에는 프레임(F)의 장변측벽(W1)과 단변측벽(W2)의 기준 거어스를 나타내는 측정선(6)이 표시되는데, 이 측정선(6)은 바람직하기로는 제3도에 도시된 바와같이 설계기준치를 나타내는 기준선(7)과 그 양측의 ±허용오차를 나타내는 두 허용오차선(8,9)으로 구성된다. 도면에서 양 허용오차선(8,9)은 도시의 편의상 다소 과장된 크기로 그려졌으며, 필요에 따라 하나 또는 복수의 측정점에는 이들을 수치적으로 측정할 수 있도록 측정눈금이 표시될 수도 있다.Each measuring wall 4, 5 is provided with a measuring line 6 representing the reference gauze of the long side wall W1 and the short side wall W2 of the frame F, which measuring line 6 is preferably As shown in FIG. 3, it consists of a reference line 7 representing a design reference value and two tolerance lines 8 and 9 representing ± permissible errors on both sides thereof. In the drawings, both tolerance lines 8 and 9 are drawn to a somewhat exaggerated size for convenience of illustration, and measurement scales may be displayed at one or a plurality of measurement points so as to measure them numerically as necessary.

이와같은 본 고안 측정장치의 사용방법은 다음과 같다.The method of using the present invention measuring device is as follows.

먼저 측정될 프레임(F)을 본 고안 측정장치의 기준면(3)상에 얹는다. 이때 프레임(F)이 좌우로 요동되면 프레임(F)이 뒤틀린 것인바, 그 정도에 따라 불량 또는 양품처리한다. 양품으로 판정된 프레임(F)은 두 측벽(W1,W2)을 두 측정벽(4,5)에 밀착시킨다. 그리고 측정선(6)에 대한 측벽(W1,W2)상단의 거어스를 관찰한다. 이때 측벽(W1,W2)상단의 거어스가 기준선(7)에 일치하면 프레임(F)이 매우 정확히 제조된 것이고, 그렇지 않다고 하더라도 두 허용오차선(8,9)내에 상단 거어스가 위치하면 프레임(F)은 사용가능한 것이다. 두 측벽(W1,W2)의 측정이 끝나면 프레임(F)을 180°회전시켜 다른 두 측벽(W1,W2)을 측정함으로써 측정과정이 완료된다.First, the frame F to be measured is placed on the reference plane 3 of the measuring device of the present invention. At this time, if the frame (F) is rocked to the left and right, the frame (F) is twisted, according to the degree defective or good quality treatment. The frame F judged as good quality adheres the two side walls W1 and W2 to the two measurement walls 4 and 5. Then, the gauze on the sidewalls W1 and W2 with respect to the measurement line 6 is observed. At this time, if the gauze on the top of the sidewalls (W1, W2) coincides with the reference line (7), the frame (F) is manufactured very accurately. (F) is usable. After the measurement of the two sidewalls (W1, W2) is completed, the measurement process is completed by rotating the frame (F) by 180 degrees to measure the other two sidewalls (W1, W2).

이와같이 본 고안 측정장치는 측정기의 조정등 번거로운 절차가 없이 직관적으로 측정이 가능하므로 매우 신속하게 프레임의 허용여부를 판단할수 있게 된다. 따라서 프레임의 전수검사가 가능하며, 이에따라 적어도 프레임의 불량에 의한 화질의 문제는 근본적으로 방지될수 있다. 그러므로 본 고안은 칼라브라운관의 품질향상에 큰 효과가 있다.As such, the measuring device of the present invention can be intuitively measured without the troublesome procedure such as adjusting the measuring device, and thus it is possible to determine whether the frame is allowed very quickly. Therefore, a full inspection of the frame is possible, and thus, at least the problem of the image quality due to the defective frame can be fundamentally prevented. Therefore, the present invention has a great effect on improving the quality of color CRTs.

Claims (4)

프레임(F)의 적어도 한 측벽(W1 또는 W2)이 밀착될수 있으며, 상기 측벽(W1 또는 W2)의 기준거어스를 나타내는 측정선(6; 7,8,9)이 표시되는 측정벽(4 또는 5)을 가지는 측정블록(1 또는 2)을 구비하는 것을 특징으로 하는 프레임 측정장치.At least one sidewall (W1 or W2) of the frame (F) can be in close contact with the measurement wall (4) or the measurement line (6; 7,8, 9) indicating the reference ground of the sidewall (W1 or W2) Frame measuring device characterized in that it comprises a measuring block (1 or 2) having a 5). 제1항에 있어서, 상기 측정블록(1,2)이, 상기 프레임(F)의 장변측벽(W1)과 단변측벽(W2)에 대응하는 두 측정블록(1,2)이 "L"자로 연속되어 구비되는 것을 특징으로 하는 프레임 측정장치.2. The measuring block (1, 2) according to claim 1, wherein the measuring blocks (1, 2) are continuous with two measuring blocks (1, 2) corresponding to the long side wall (W1) and the short side wall (W2) of the frame (F). Frame measuring apparatus characterized in that the provided. 제2항에 있어서, 상기 두 측정블록(1,2)간에, 상기 프레임(F)의 뒤틀림을 측정하는 기준면(3)이 연장되는 것을 특징으로 하는 프레임 측정장치.3. Frame measuring device according to claim 2, characterized in that a reference plane (3) extends between the two measuring blocks (1,2) for measuring the distortion of the frame (F). 제1항에 있어서, 상기 측정선(6)이, 상기 프레임(F)의 거어스의 설계기준치를 나타내는 기준선(7)과, 그 양측의 허용오차선(8,9)을 구비하는 것을 특징으로 하는 프레임 측정장치.2. The measuring line (6) according to claim 1, characterized in that the measuring line (6) comprises a reference line (7) indicating a design reference value of the gauze of the frame (F) and tolerance lines (8, 9) on both sides thereof. Frame measuring device.
KR2019930026016U 1993-11-30 1993-11-30 Checker for shadow mask frame of cathode ray tube KR200157068Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019930026016U KR200157068Y1 (en) 1993-11-30 1993-11-30 Checker for shadow mask frame of cathode ray tube

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Application Number Priority Date Filing Date Title
KR2019930026016U KR200157068Y1 (en) 1993-11-30 1993-11-30 Checker for shadow mask frame of cathode ray tube

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KR950015567U KR950015567U (en) 1995-06-19
KR200157068Y1 true KR200157068Y1 (en) 1999-09-15

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