JPH11329302A - Monitoring cathode-ray tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easy disassembling of a cathode-ray tube after the recovery to ensure a quality of recycled material by burrying both ends of heating wire in an adhesive layer between a pannel and a fannel, with both the ends made to protrude to the outside of the layer. SOLUTION: A heating wire 5 is burried over the whole length of a connection part composed of an adhesive layer part 4, each of ends 6, 6 of the wire 5 is extended to the outside in one corner, and bent along the outer surface of a pannel 2. A band is wound around the outer circumferential surface of the layer 4 so as to cover the ends 6, 6 of the wire 5. In disassembling a cathode-ray tube, the band is removed at first, then the end 6 is connected to a power source, and thereby the wire is charged with a current. When it is heated, thermal distorsion generates in the layer 4 to generate cracking therein, and thereby it is divided into a pannel 2 made of a high quality glass material and a fannel composed of lead contained glass material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube for a monitor which is extremely easy to disassemble when used for recycling.

[0002]

2. Description of the Related Art As is well known, CRTs for monitors are used in television receivers, office automation equipment, and the like that are used for ordinary homes and businesses. When the product using the monitor CRT becomes unusable, if the monitor CRT is recyclable, it is dismantled, crushed, and culletized. However, a monitor CRT is constructed by bonding a panel made of high-quality glass and a funnel made of glass containing lead with an adhesive. Traditionally,
When dismantling a monitor CRT for disposal, the monitor CRT is taken out of the cabinet, the band on the outer peripheral surface is removed, and the panel is separated from the funnel by setting it in a panel / funnel separator. In the above-described conventional separating apparatus, four corners of the monitor cathode ray tube are scratched with a diamond cutter, and a nichrome wire is wound around four sides and brought into contact, and heated. The heated portion thermally expands and is displaced from the portion not in contact with the nichrome wire, and this thermal strain causes cracks. When the corner is hit with a hammer or the like, the corner is separated into a panel and a funnel.

[0003]

In the above-mentioned conventional disassembly work of a monitor CRT for a monitor, a panel having a special structure is used.
A funnel separator is required, and the work of winding a nichrome wire around the four sides must be performed. In addition, if the winding position of the nichrome wire is not made accurate, impurities will be mixed into the material to be recovered, which will require remarkable work time and labor. Therefore, it is desired that at least the nichrome wire can be wound at an accurate position and easily, and the monitor CRT can be easily disassembled.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional disadvantages and has been proposed in view of the conventional needs. A heating wire is previously provided on an adhesive layer portion for joining a panel and a funnel. In this configuration, the heating wire is a nichrome wire, and the heating wire is embedded substantially over the entire length of the joint between the panel and the funnel.

Further, according to the present invention, although the number of heating wires is one, the heating wire is folded, doubled and buried in the entire joint portion between the panel and the funnel. , And a configuration located on the outer surface from the adhesive layer portion.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing a monitor cathode ray tube of the present invention, FIG. 2 is a plan view of a main part showing a first embodiment of the present invention, FIG. 3 is a vertical side view of the monitor cathode ray tube, and FIG. 5, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a plan view of a main part showing a second embodiment of the present invention.

[0007] The monitor CRT 1 according to the present invention.
The panel 2 made of high-quality glass and the funnel 3 made of lead-containing glass are firmly and integrally joined by an adhesive layer portion 4, and a heating wire 5 is embedded in the adhesive layer portion 4. It is a configuration provided in a shape.

According to the first embodiment of the present invention shown in FIGS. 2 to 5, the number of the heating wires 5 is one, and the heating wire 5 is buried in the entire length of the joining portion constituted by the adhesive layer portion 4, and At each of the two corners, each end 6, 6 of the heating wire 5 extends outside,
The panel 2 is bent along the outer surface.

In the present invention, the monitor CRT 1 is used.
Is 17 inches, the width of the adhesive layer part 4 is about 10 mm, the thickness of the adhesive layer part 4 is about 2.5 to 3.5 mm, and the thickness of the heating wire 5 is about 2 mm. Therefore, the heating wire 5 can be provided buried in the area of the adhesive layer portion 4 without coming into contact with the end faces of the panel 2 and the funnel 3 and without being exposed to the outside.

The heating wire 5 is not only most economical to use a nichrome wire, but also has a high utility value because it is reliably heated by energization. However, any material other than the nichrome wire may be used as long as it is heated by energization.

The structure of the present invention is as described above, and when it is set in a cabinet of a television receiver, office automation equipment or the like, the adhesive layer 4
Since the band is wrapped around the outer peripheral surface and covers the end portion 6, there is no particular problem as a product. When the monitor CRT 1 is dismantled as a product for disposal, the band is removed by removing it from the cabinet, then the end 6 is connected to a power supply, and the heating wire 5 is energized.
Of the panel 2 and the funnel 3 can be divided. Therefore, it is not necessary to set the monitor CRT 1 in the panel / funnel dividing device, and it is not necessary to use the device.

FIG. 6 shows a second embodiment of the present invention, in which the number of heating wires 5 is one, but the heating wires 5 are double-buried and embedded in the adhesive layer portion 4. That is, the heating wire 5
Is located at one corner and has a double heating wire 5
Is embedded in the entire length of the adhesive layer portion 4, and the end portion 6 extends from the same corner to the outside and is bent along the outer surface of the panel 2.

In this embodiment, since the double heating wire 5 is substantially buried, when each end 6 is connected to a power source and heated during disassembly, the adhesive layer portion 4 is heated in a short time. Therefore, thermal distortion is easily generated, and the dismantling operation can be simplified. Note that the reference numerals that are not described in FIG. 6 have the same configurations as the same reference numerals in the first embodiment, and thus detailed description is omitted.

Although the present invention has been described based on the embodiments shown in the drawings, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments unless the structure described in the claims is changed. Can also be implemented.

[0015]

In summary, according to the present invention, a heating wire is buried in an adhesive layer portion for joining a panel and a funnel. For this reason, it is not necessary to wind the nichrome wire around the outer circumference at the correct position during the dismantling work, so the dismantling work after collecting the monitor CRT is extremely easy,
Processing can be performed in a short time, and the quality of the dismantled recycled material can be maintained. Since the heating wire is embedded in the adhesive layer, heat can be efficiently transmitted without contacting the atmosphere. As a result, the current flowing through the heating wire can be reduced, and the economic effect can be enhanced. In addition, by using a nichrome wire as the heating wire, the adhesive layer is reliably heated at a low cost, so that the disassembly work can be simplified, and the heating wire is embedded in the entire joint between the panel and the funnel. Therefore, thermal distortion occurs in the entire length of the adhesive layer portion, and the panel and the funnel are easily divided.

Furthermore, although the number of heating wires is one, if the heating wire is folded and double-buried to be buried almost in the entire length of the joint portion between the panel and the funnel, the heating can be performed in a short time by thermal distortion. Since both ends of the heating wire are located on the outer surface from the adhesive layer portion, it is possible to provide a monitor CRT that is easy to connect to a power source, has high working precision, and has high practical value.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a monitor cathode ray tube of the present invention.

FIG. 2 is a plan view of a main part showing the first embodiment of the present invention.

FIG. 3 is a vertical sectional side view showing the first embodiment of the present invention.

FIG. 4 is a partially enlarged plan view.

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a plan view of a main part showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CRT for monitor 2 Panel 3 Funnel 4 Adhesive layer part 5 Heating wire 6 End 7 Bending tip

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[Procedure amendment]

[Submission date] March 8, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor cathode ray tube presumed to be recycled, and more particularly to a monitor cathode ray tube which is extremely easy to disassemble when it is recycled.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional disadvantages and has been proposed in view of the conventional needs. It comprises a panel and a funnel joined to each other via an adhesive layer. A monitor cathode ray tube which can be separated and recycled with the adhesive layer portion as a boundary, and extends over substantially the entire length of the adhesive layer portion in such a manner that both end portions protrude outside the adhesive layer portion. A heating wire buried in a part and the both ends are respectively bent along the outer surface of the panel, and a band wound around the outer peripheral surface of the adhesive layer portion in a manner to cover both ends of the heating wire. , Is provided.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

Further, according to the present invention, although the number of the heating wires is one, the heating wire has a folded shape and includes a configuration in which the heating wire is double-buried in the adhesive layer portion.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

According to the first embodiment of the present invention shown in FIGS. 2 to 5, the number of the heating wires 5 is one, and the heating wire 5 is buried in the entire length of the joining portion constituted by the adhesive layer portion 4, and At each of the two corners, each end 6, 6 of the heating wire 5 extends outside,
The panel 2 is bent along the outer surface. Further, although not explicitly shown in the drawing, a band is wound around the outer peripheral surface of the adhesive layer portion 4 so as to cover the ends 6 of the heating wire 5.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

The configuration of the present invention is as described above, and the band is wound around the outer peripheral surface of the adhesive layer portion 4 as described above even when it is set in a cabinet of a television receiver, office automation equipment or the like. Since the end 6 is covered, there is no particular problem as a product. And
When disassembling the monitor CRT 1 for disposal, remove the band from the cabinet and remove the band.
When the end 6 is connected to a power source and the heating wire 5 is energized and heated, the adhesive layer portion 4 is thermally strained and cracked, and the panel 2
And the funnel 3. Therefore, it is not necessary to set the monitor CRT 1 in the panel / funnel dividing device, and it is not necessary to use the device.

Claims (4)

[Claims] 1. A monitor cathode ray tube having a heating wire buried in an adhesive layer portion for joining a panel and a funnel. 2. The monitor cathode ray tube according to claim 1, wherein the heating wire is a nichrome wire and is buried in the entire joint portion between the panel and the funnel. 3. The monitor cathode ray tube according to claim 2, wherein the heating wire is a single wire, but is folded and doubled so as to be buried substantially over the entire length of the joint portion between the panel and the funnel. 4. The monitor CRT according to claim 1, wherein both ends of the heating wire are located on the outer surface from the adhesive layer portion.