JPH0754913Y2 - Panel holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an apparatus for manufacturing a fluorescent screen for a color cathode ray tube.

[Conventional technology]

Conventionally, when cleaning the antistatic panel in the hydrofluoric acid cleaning section, a method has been adopted in which the panel face surface and the middle of the skirt section are covered with a resin sheet or a dedicated rubber protective cover for each size is used. It was That is, a person covers each panel with a sheet or uses a dedicated rubber protective cover to prevent the appearance failure such as the panel face surface due to the hydrofluoric acid liquid splash in the cleaning process.

[Problems to be solved by the device]

In the above-mentioned conventional method, the hydrofluoric acid solution is more likely to permeate between the panel and the sheet cover during the hydrofluoric acid cleaning, and the panel antistatic film may be put on the panel to cause a poor appearance. In addition, since it is necessary for a person to attach the seat cover to each panel, it takes time and effort. Further, when a dedicated protective cover is used, there is a restriction on the size of the panel using the cover, and there is a drawback that it is not suitable for an automatic machine to actually make a multi-tube type / mass production system.

An object of the present invention is to provide a panel holding device that solves the above problems.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a panel holding device according to the present invention is a panel holding device used in an apparatus for manufacturing a phosphor screen for a color cathode-ray tube, comprising a pedestal having an internal hollow structure with one end surface opened,
The pedestal applies the opening edge to the outer peripheral edge of the face surface of the antistatic panel and covers the face surface of the panel to hermetically seal. The pedestal is elastically deformed at the opening edge. The antistatic panels having different sizes have a panel contact surface which is commonly and closely adhered to the outer peripheral edge of the face surface.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a protective cover according to the present invention, and FIG. 3 is a II of FIG.
FIG. 4 is an enlarged sectional view of the I portion, and FIG. 4 is a perspective view showing the panel mounting portion.

As shown in FIG. 6, the antistatic panel 1 has a panel face surface 1a and a skirt portion 1b rising from the edge of the panel face surface 1a, and the end surface facing the panel face surface 1a is open. It has an internal hollow structure.

In order to prevent hydrofluoric acid from adhering to the panel face surface 1a of the antistatic panel 1 and to make a multi-tube type / mass production system with an automatic machine, an opening edge 5b that is approximately matched to the panel curvature dimension is provided.
A rubber pedestal 5 having an internal hollow structure having a is manufactured by a mold. A soft rubber is used for the panel contact surface 5a formed on the opening edge 5b of the pedestal 5, and the panel contact surface 5a is shared by the outer peripheral edges of the panel face surfaces 1a of the panels 1 and 1'of different sizes. They are enlarged so that they fit together.

By the way, since the panel curvatures of the panel face surfaces 1a of the panels 1 and 1'are different for each size, a gap is created between the panel face surface 1a and the panel contact surface 5a. Therefore, a notch 5c is formed in a corner 5d of the rectangular pedestal 5 so as to have a cushioning property so that the panel contact surface 5a conforms to the panel face surface 1a and adheres thereto. The base 5 and the metal plate 6 are baked and adhered to each other, and the metal plate 6 is provided with a mounting hole 7.

The metal plate 6 of the pedestal 5 is screwed to the substrate 3 attached to the head 8 shown in FIG. The pedestal 5 and the metal plate 6 are bonded by baking, and when these are attached to the substrate 3, the pedestal 5 is positioned so that the center of the substrate 3 is aligned with the center of the substrate 3. After the positioning, the screw inserted into the mounting hole 7 in the metal plate 6 is screwed to the substrate 3.

As shown in FIG. 1, the outer peripheral edge of the panel face surface 1a of the antistatic panel 1 is applied to the panel contact surface 5a of the pedestal 5 and clamped and fixed by the clamp arm 4.

As shown in FIG. 5, the antistatic panel 1 requiring cleaning is jetted to the inner surface of the panel 1 by the pump P while rotating downward, and cleaning with hydrofluoric acid is performed.

According to the present invention, one pedestal 5 has panels of different sizes.
The panel face surface 1a of the panel 1 can be airtightly attached by mounting 1,1 '.

[Effect of device]

As described above, the present invention enables the use of multi-tube type anti-static panels in an automatic machine by attaching anti-static panels of different sizes to the pedestal.
Mass production is now possible. Also, since the pedestal panel contact surface has cushioning properties, the antistatic panel is in close contact with the pedestal panel contact surface, and the hydrofluoric acid solution may splash during cleaning.
Since it does not penetrate, it has zero appearance defects compared to the conventional one.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a protective cover according to the present invention, and FIG. 3 is a II of FIG.
Part I enlarged cross-sectional view, FIG. 4 is a perspective view showing the panel mounting portion,
FIG. 5 is a block diagram showing the panel hydrofluoric acid cleaning section, and FIG. 6 is a perspective view showing the antistatic panel. 1 …… Antistatic panel, 1a …… Panel face surface 5 …… Pedestal, 5a …… Pedestal panel contact surface

Claims (1)

[Scope of utility model registration request] 1. A panel holding device used in an apparatus for manufacturing a phosphor screen for a color cathode ray tube, comprising a pedestal having an internal hollow structure having an opening at one end surface,
The pedestal applies the opening edge to the outer peripheral edge of the face surface of the antistatic panel and covers the face surface of the panel to hermetically seal. The pedestal is elastically deformed at the opening edge. A panel holding device having a panel contact surface that is commonly adhered to the outer peripheral edge of the face surface of antistatic panels of different sizes.