JPH0850867A - Parallel arranging sheet body of belt-shaped sheets for magnetic field correction of deflecting yoke and its manufacture - Google Patents

Abstract

PURPOSE:To make handling in sticking work easy and make separation itself easy by forming a parallel arranging sheet body of belt-shaped sheets for mag netic field correction in such a state that many belt-shaped sheets for magnetic field correction are arranged on a common release sheet. CONSTITUTION:A parallel arranging sheet body 1 of belt-shaped sheets for magnetic field correction is constituted by adjacently arranging a plurality of narrow magnetic field correction belt-shaped sheets 2, 2... on a common release sheet 3. The magnetic field correction belt-shaped sheet 2 is constituted by fixing a ferrite sheet piece 5 in the longitudinal direction of a synthetic resin belt-shaped supporting plate 4 capable of elastically deforming with an adhesive means 6 and forming a sticking means 7 on the other end side. Since the sheet body 1 is formed by only arranging an adhesive layer of the sticking means 7 on the release sheet 3, the ferrite sheet arranging side of the sheet 2 can easily be floated from the sheet 3. The separation job of the sheet 2 from the sheet 3 is made easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic field correcting strip-shaped sheet used for final adjustment of a magnetic field of a deflection yoke mounted on a neck portion of a cathode ray tube. The present invention relates to an arrayed sheet body of magnetic field-correcting strip-shaped sheets that can be provided to a site of use in a state where a large number of sheets are installed side by side.

[0002]

2. Description of the Related Art A deflection yoke mounted on a cathode ray tube used for a television, a CRT display or the like has a small piece f made of a ferrite powder compound resin attached to the inner surface of the deflection yoke A as shown in FIG. 21 for the purpose of correcting a magnetic field. Has been. Then, after roughly adjusting the magnetic field with a small piece f of resin containing ferrite powder, the deflection yoke A is attached to the neck portion of the cathode ray tube. However, although the above-mentioned magnetic field correction is generally correct, it is not completely precisely adjusted to the extent that it can be shipped. Therefore, the final adjustment of the magnetic field of the deflection yoke is performed again immediately before shipping.

For this final adjustment, a magnetic field correcting band-shaped sheet having a form as shown in FIG. 22 is used. The magnetic field correction belt-shaped sheet a is a small piece c (hereinafter
A ferrite sheet piece c) is attached, and a sticking means d is provided at the other end, and has a size as shown in the drawing, for example. When using the magnetic field correcting strip sheet a, the magnetic field correcting strip sheet a is inserted from the gap between the cathode ray tube B and the deflection yoke A as shown in FIG. The image on the CRT screen is inspected while slightly moving the position, and the image is fixed at the position where the CRT image is in the optimum state using the sticking means d. The attaching means d may be adhered to the inner surface of the deflection yoke A as shown in FIG. 23, or may be adhered to the cathode ray tube wall as shown in FIG. The inner surface of the deflection yoke A may be adhered to the surface of the winding wire, but normally it is fixed to a base portion (not shown) for winding the winding. Further, in the illustrated example, the ferrite sheet piece c and the attaching means d are attached to the same surface of the synthetic resin belt-shaped support plate b, but they may be attached to the opposite surfaces. A plurality of such magnetic field correcting strips a are usually used to adjust one television or CRT display.

As shown in FIG. 25, the ferrite sheet piece c is made of a synthetic resin strip-shaped support plate b by means of an adhering means e1 in which an adhesive agent e11 and an adhesive agent e13 are arranged on both sides of a base material e12.
Is attached to. A so-called double-sided adhesive tape is used for the sticking means d, and its detailed configuration is such that an adhesive layer d11, a sponge base material d12, an adhesive layer d13, and a release paper d14 are laminated as shown in the drawing. . Further, as shown in FIG. 26, the ferrite sheet piece c is fixed to the synthetic resin strip-shaped support plate b by the adhesive means e2 which does not have a base material and is made of only an adhesive. The sticking means d2 consisting of only layers may be used.

[0005]

By the way, the magnetic field correcting belt-like sheets a having the above-mentioned structure are provided one by one at the work site for adjusting the magnetic field of the deflection yoke. It is needless to say that it is preferable that the magnetic field correction strip-shaped sheets are arranged orderly on the common mount in consideration of the ease of handling the magnetic field correction strip-shaped sheets. Nevertheless, the magnetic field correcting strip-shaped sheets are provided in separate states for the following reasons.

At the final stage of the manufacturing process of the magnetic field correction strip-shaped sheet, as shown in FIG. 27, the magnetic field correction sheet continuous body a'is cut by the cutting blade 12 at a predetermined interval so that the magnetic field correction strip of a predetermined width is formed. The sheet a is obtained. In the cutting at this time, if the half-cutting can be performed so that only the release paper d14 can be left without being cut, the magnetic field correction strip-shaped sheet will not be separated. However, as shown in FIG. 28, as shown in FIG. 28, since the synthetic resin supporting plate b ′ is placed on the upper side of the cutting base Z for cutting the magnetic field correcting strip-shaped continuous body a ′, the pressure sensitive adhesive layer is temporarily used. Boundary between d13 and release paper d14, that is, base Z
If a half cut is made to cut to a position away from the surface by a distance h, the ferrite sheet piece c is left uncut, and the ferrite sheet piece c cannot be completely cut off. If the ferrite sheet piece c is to be completely cut off, there is no other way than cutting the release paper d14, and for this reason, the conventional magnetic field correcting strip-shaped sheets have to be manufactured separately.

Since the magnetic field correcting strip-shaped sheets are scattered one by one, the following inconveniences occur, for example, the release paper d14 is difficult to peel off, and the magnetic field correcting strip-shaped sheets are stuck. It is difficult to handle, it takes time to ship the product because it can not be wound, it is difficult to manage the quantity, it is difficult to prevent the mixing of defective products and it is difficult to automate the non-defective product selection work. There were many problems such as difficulty in planning and handling, and inability to reuse release paper.

The present invention has been made in view of the above circumstances, and the magnetic field correcting strips are aligned on a common release sheet without causing the magnetic field correcting strips to fall apart. No. 5,849,697, and also provides a method for manufacturing such a parallel sheet body of magnetic field correction strip sheets.

[0009]

Means for Solving the Problems The present inventor has reached the following conclusions as a result of examining a specific method for solving the above problems. That is, the reason why the conventional magnetic field correction strip-shaped sheet is disjointed is that the release paper d14 exists only in a part in the longitudinal direction of the cutting line of the magnetic field correction strip-shaped sheet, and therefore the release paper is cut at the final stage of the manufacturing process. This is because the boundary position between d14 and the pressure-sensitive adhesive layer d13 cannot be set as the reference depth for half cut. Therefore, the structure and manufacturing method of the magnetic field correction strip-shaped sheet in which the release paper and the release sheet instead of the release sheet exist over the entire length in the longitudinal direction of the cutting line of the magnetic field correction strip during cutting performed in the final stage of the manufacturing process are proposed. If possible, the above problems can be solved.

The present invention completed based on such an idea has the following contents. First, in the juxtaposed sheet body of the magnetic field correction strip-shaped sheets of the present invention, a small piece made of a ferrite powder-containing resin is attached to one end in the longitudinal direction of an elastically deformable synthetic resin strip-shaped support plate by an adhering means, and the other end is deflected. A magnetic field correction strip-shaped sheet provided with a pressure-sensitive sticking means on the inner surface of the yoke or the cathode ray tube wall, and a width substantially equal to or longer than the length of the magnetic field correction strip-shaped sheet by the sticking portion of the sticking means. It is characterized in that a plurality of sheets are juxtaposed in parallel with each other on the release sheet having.

Further, in such a method for manufacturing a juxtaposed sheet body of magnetic field correcting strip-shaped sheets, a synthetic resin support plate is prepared by dividing a long and wide elastic synthetic resin plate into a plurality of parts in the width direction. And the side of the double-sided adhesive sheet on which the release paper or release film is laminated on one side of the sheet body, at least the front and back surfaces of which are adhesive surfaces, on the side where the double-sided adhesive sheet has the same width. A step of laminating a ferrite powder-containing resin sheet, a step of dividing a laminate of the double-sided adhesive sheet and the ferrite powder-containing resin sheet into a plurality of parts in the width direction, and a release paper on one side of at least a sheet body whose front and back surfaces are adhesive surfaces. Alternatively, a step of dividing a sticking sheet having a release film laminated therein into a plurality of parts in the width direction, a component manufacturing step including the double-sided adhesive sheet and the ferrite powder-containing resin manufactured by the component manufacturing step. A step of laminating and releasing the adhesive surface exposed while peeling off the release paper or the release film from the laminate with the sheet along one end side in the width direction of the synthetic resin support plate produced by the component production step, A synthetic resin in which the ferrite powder-containing resin sheet is laminated along one end side on one surface of the front and back adhesive surfaces while peeling off the release paper or release film from the adhesive sheet produced by the component production process. While laminating and adhering along the other end side of the support plate made of plastic, the adhesive sheet of the laminated sheet has a space having a width substantially equal to or larger than that of the synthetic resin support plate on the surface where the adhesive surface is exposed. The step of laminating and bonding the mold sheet over the adhesive surface of the adhesive sheet and the ferrite powder-containing resin sheet, and the ferrite powder-containing resin sheet is located at one end of the synthetic resin support plate and the adhesive sheet is at the other end. Placed on the laminated sheet body in which the release sheet is laminated over the ferrite powder-containing resin sheet and the adhesive sheet, a half cut from the surface of the synthetic resin support plate to the depth position where the release sheet remains. A step of forming cuts at regular intervals in the longitudinal direction of the laminated sheet body,
Composed of.

A weak adhesive may be applied to the surface of the release sheet facing the synthetic resin support plate.

[0013]

In order to use the side-by-side sheet members of the magnetic field correcting strip-shaped sheets having such a structure, the magnetic field is sequentially corrected one by one from each of the plurality of magnetic field correcting strip-shaped sheet groups arranged on the release sheet. The correction strip-shaped sheet is peeled off, and after peeling off, the sheet is inserted into the gap between the deflection yoke and the cathode ray tube and used as in the conventional case. The juxtaposed sheet body of the magnetic field correcting strip-shaped sheets of the present invention is easy to handle because the magnetic field correcting strip-shaped sheets are aligned on the common release sheet. Also, when using a continuous release sheet for several meters to several tens of meters without interruption, after releasing all the magnetic field correction strips, the release sheet should be wound up and reused. You can also

The magnetic field correction strip-shaped sheet is fixed to the release sheet by the adhesive portion of the sticking means, but the ferrite sheet piece is not fixed to the release sheet. It can be easily peeled off from the release sheet by picking up from the mounting side.

When a weak adhesive is applied to the surface of the release sheet which faces the synthetic resin support plate, the magnetic field correcting strip-shaped sheet can be easily peeled from the release sheet while maintaining the ease of peeling. Since a temporary fixing effect to the release sheet can also be realized, it becomes easier to handle and store the side-by-side sheet bodies of the magnetic field correcting strip-shaped sheets.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to illustrated embodiments. FIG. 1 is an external perspective view of a juxtaposed sheet body 1 of magnetic field correcting strips of the present invention, and FIGS. 2 and 3 are side views. The magnetic-field-correcting strip-shaped sheets 1 are arranged side by side on a common release sheet 3 in parallel with each other. In the magnetic field correction belt-shaped sheet 2, a ferrite sheet piece 5 is attached to one end in the longitudinal direction of an elastically deformable belt-shaped support plate 4 made of a synthetic resin.
The attachment means 7 is provided on the other end side. The thickness of each member is exaggerated for the sake of expression.

As shown in FIG. 2, the adhering means 6 is a non-woven fabric,
The base material 6b having elasticity such as rubber or polyurethane has adhesive layers 6a and 6c formed on both front and back surfaces. On the other hand, the sticking means 7 is made of elastic material such as non-woven fabric, rubber or polyurethane, or sponge-like material. This is a configuration in which a pressure-sensitive adhesive layer 7a and a pressure-sensitive adhesive layer 7c are formed on both front and back surfaces of the base material 7b. The adhering means 6 and the adhering means 7 may be the same or different. Further, both may be made of the same material and only the wall thickness may be changed. Adhesive layers 6a, 6
As c, 7a, 7c, various types such as acrylic type, epoxy type and rubber type can be used, but it is preferable to use an acrylic adhesive from the viewpoint of heat resistance. The adhesive strength of each pressure-sensitive adhesive layer is changed according to the formation position.

The ferrite sheet piece 5 is formed of a material in which ferrite powder is dispersed and mixed in a synthetic resin, and as the ferrite powder, soft ferrite powder such as manganese zinc ferrite, nickel zinc ferrite, magnesium zinc ferrite or the like can be used. . The blending amount of the ferrite powder is determined according to the required magnetic permeability μ. For example, if the required magnetic permeability μ is in the range of 5 to 9, it is 70 to 79.
When the magnetic permeability μ is in the range of 10 to 20, the compounding amount of the ferrite powder is set to 80 to 90% by weight.

Examples of the synthetic resin as a binder contained in the ferrite sheet piece include chlorosulfonated polyethylene resin, silicone rubber, polyvinyl chloride, polyamide, chlorinated polyethylene, acrylonitrile butadiene rubber, olefin rubber and the like. Chlorosulfonated polyethylene resin and silicone rubber are suitable for high powder loading. In particular, chlorosulphonated polyethylene-based resin is excellent in flexibility and flame retardancy, and has long-term heat resistance at a temperature of 110 ° C or higher, so it is used for deflection yokes mounted on high-definition televisions and large-screen televisions that generate a large amount of heat. Suitable to do.

A material having heat resistance and flame retardancy such as polyester, polyimide, polyvinyl chloride and polycarbonate is used for the synthetic resin belt-shaped support plate 4, and a flame retardant and other additives are blended appropriately. . Since the release sheet 3 is not required to have heat resistance, not only various synthetic resin sheets but also paper sheets can be used as long as the material has release properties.

4 to 6 show a bonding means 6 having no base material.
This is the case where A and the sticking means 7A are used. Here, the base material is omitted from both the adhesive means and the sticking means, but the base material may be omitted from only one.

The juxtaposed sheet body 1 of the magnetic field correcting strips having such a structure is aligned on the release sheet 3 by pressure-sensitively adhering the adhesive layer 7a of the sticking means 7 to the release sheet 3. However, since the ferrite sheet piece 5 and the release sheet 3 are not pressure-sensitive bonded to each other, as shown in FIG. 7, the ferrite sheet piece arrangement side of the magnetic field correction strip sheet 2 is easily floated from the release sheet 3. Therefore, the work of peeling each magnetic field correction strip 2 from the release sheet 3 is extremely easy. As shown in FIG. 20, a weak pressure-sensitive adhesive layer 8 that can be easily peeled off can be provided on the surface of the release sheet 3. In this case, since the effect of temporarily fixing the ferrite sheet piece 5 to the release sheet 3 can be realized while maintaining the ease of peeling the magnetic field correction strip 2 from the release sheet 3, the magnetic field correction strips are arranged side by side. It becomes easier to handle and store the sheet body 1.

Next, a method of manufacturing the side-by-side sheet body 1 of the magnetic field correcting belt-like sheets having the above-mentioned structure will be described. The manufacturing method described here is based on the assumption that the adhesive means 6 and the sticking means 7 have a base material. The outline of this manufacturing method is shown in FIG.
19 is shown, and the steps are mainly composed of the respective steps of manufacturing the parts described in 1 and the steps of assembling and processing these parts. still,
It goes without saying that the dimensions described in the text and the figures are examples and the present invention is not limited thereto. A step of producing a synthetic resin support plate 4 ″ having a width of about 50 mm to 150 mm by dividing a synthetic resin plate 4 ′ unrolled from a roll wound into a plurality of pieces in the width direction.
(FIG. 8) The front and back surfaces are adhesive surfaces 6c ′ and 6a ′, and one adhesive surface 6
The double-sided adhesive sheet 6'where the release paper 9 made of synthetic resin is laminated on the surface of c'is unrolled from the roll-shaped original sheet, and the adhesive surface 6a 'of the double-sided adhesive sheet 6'is attached to the exposed side. A step of laminating a ferrite powder-containing resin sheet 5'having the same width as the double-sided adhesive sheet 6 '. (FIG. 9) A laminated body of the double-sided adhesive sheet 6 ′ and the ferrite powder-containing resin sheet 5 ′ is divided into a plurality of pieces in the width direction and 3 mm to 20 m.
A step of producing a ferrite sheet laminate 10 having a width of about m. (FIG. 10) An adhesive sheet 7 ′ having a release paper 11 laminated on one side of a sheet body having front and back surfaces having adhesive surfaces 7 a ′ and 7 c ′ is divided into a plurality of pieces in the width direction and has a width of 5 mm to 30 mm. Of producing the adhesive sheet 7 "of FIG. 11 (FIGS. 11 and 12).

The above is the component manufacturing process, and the subsequent process is the process of assembling the parts manufactured by the component manufacturing process while stacking them. While peeling off the release paper 9'from the ferrite sheet laminate 10 produced by the above process, the exposed adhesive surface 6a "is laminated along one end side in the width direction of the synthetic resin support plate 4" produced by the above process. The process of bonding.
(FIG. 13) The ferrite sheet laminated body 10 may be laminated on one end side in the width direction of the synthetic resin support plate 4 ″ by completely matching the end portions, but as shown in FIG. The ears 13 may be left at the widthwise ends of the synthetic resin support plate 4 ″ so that the magnetic field correcting strip-shaped sheet can be easily separated from the release sheet later. The adhesive sheet 7 ″ produced by the above-mentioned step is removed from the adhesive paper 7 c ′ exposed while peeling off the release paper 11.
The ferrite sheet laminated body 10 is laminated and adhered along the other end side of the synthetic resin support plate 4 ″ in a laminated state along one end side, and the adhesive surface 7a ′ of the laminated adhesive sheet 7 ″. A step of laminating and releasing a release sheet 3 having a width substantially equal to or larger than that of the synthetic resin support plate over the adhesive surface 7a ′ of the adhesive sheet 7 ″ and the ferrite sheet laminate 10 (FIG. 15). , FIG. 17, FIG. 18) Here, the adhesive surface 7c ′ exposed when the release paper 11 is peeled from the adhesive sheet 7 ″ is adhered to the synthetic resin support plate 4 ″, but as shown in FIG. The adhesive surface 7a ', which is the opposite surface of the adhesive surface 7c', may be adhered to the synthetic resin support plate 4 ". In the laminated sheet body obtained by the above-mentioned step, a cutting blade 12 is cut from the surface side of the synthetic resin support plate 4 ″ to a depth position where the release sheet 3 remains at regular intervals to form a half cut. (Figure 19)

Through the steps 1 to 3 described above, a side-by-side sheet body for the magnetic field correcting strip-shaped sheets is manufactured. In the above manufacturing method, the release sheet 3 is the adhesive surface 7 of the adhesive sheet 7 ″.
Although it is directly adhered to a ′ and no adhesive means is provided between the ferrite sheet piece 5 ″ and the release sheet 3, a weak adhesive layer 8 is provided on the surface of the release sheet 3 as shown in FIG. The ferrite sheet piece 5 ″ may be temporarily fixed to the release sheet 3. Further, in FIG. 13, the ferrite sheet laminated body 10 from which the release paper 9 ′ has been peeled off is attached to the synthetic resin support plate 4 ″ and is wound once in a roll shape. It is also possible to connect to the next step indicated by and process in the same line. According to the method of the present invention, the thin release paper 11 laminated on one side of the adhesive sheet 7 ″ is manufactured in the manufacturing process. The greatest feature is to remove it and replace it with a release sheet 3 having a width substantially equal to or longer than the length of the synthetic resin strip-shaped support plate 4 of the magnetic field correction strip-shaped sheet 2.

[0026]

EFFECTS OF THE INVENTION Since the magnetic-field-correcting strip-shaped sheets of the present invention arranged side by side have a large number of magnetic-field-correcting strip-shaped sheets aligned on a common release sheet, the following effects are listed. Have. a) When attaching the magnetic field correction strips to the deflection yoke, the magnetic field correction strips can be peeled off one by one from the release sheet and used, so that the handling during the attachment work is easy. Become. Moreover, peeling itself is easy. b) Since the magnetic field correcting band-shaped sheet can be wound, the product can be shipped easily. c) Since the magnetic-field-correcting strip-shaped sheets are aligned on the release sheet, it is easy to control the quantity, prevent defective products from entering, and automate the non-defective product selection work. It is also easy to take countermeasures against the cause of defective products. d) When using a release sheet that is continuous for several meters to several tens of meters without interruption, after releasing all the magnetic field correction strip sheets, the release sheet should be wound up and reused. You can also

E) The magnetic field correction strip-shaped sheet is fixed to the release sheet by the adhesive portion of the sticking means, but the ferrite sheet piece is not adhesively fixed to the release sheet. The workability is excellent because the ferrite sheet can be easily peeled off from the release sheet by picking up from the mounting side.

When a weak pressure sensitive adhesive is applied to the surface of the release sheet facing the synthetic resin support plate as described in claim 3, the magnetic field correcting strip sheet can be easily separated from the release sheet. Since the effect of temporarily fixing the ferrite sheet piece to the release sheet can be realized while maintaining it, the handling and storage of the side-by-side sheet body of the magnetic field correction strip-shaped sheets becomes easier.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of juxtaposed sheet members of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 2 is a left side view showing a laminated structure of juxtaposed sheet bodies of the magnetic field correction strip-shaped sheets.

FIG. 3 is a right side view showing a laminated structure of juxtaposed sheet members of the magnetic field correction strip-shaped sheets.

FIG. 4 is a front view showing another example of the juxtaposed sheet body of the magnetic field correcting strip-shaped sheets of the present invention.

FIG. 5 is a left side view showing a laminated structure of juxtaposed sheet members of the magnetic field correcting strip-shaped sheets.

FIG. 6 is a right side view showing a laminated structure of juxtaposed sheet members of the magnetic field correcting strip-shaped sheets.

FIG. 7 is an explanatory view showing a mounting state of the release sheet of the juxtaposed sheet body of the magnetic field correcting strip-shaped sheets of the present invention.

FIG. 8 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 9 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 10 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 11 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 12 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 13 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 14 is an explanatory view showing another example of the manufacturing process of the juxtaposed sheet body of the magnetic field correcting strip-shaped sheets of the present invention.

FIG. 15 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 16 is an explanatory view showing another example of the manufacturing process of the juxtaposed sheet body of the magnetic field correcting strip-shaped sheets of the present invention.

FIG. 17 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 18 is an explanatory view showing the manufacturing process of the juxtaposed sheet body of the magnetic field correcting strip-shaped sheets of the present invention.

FIG. 19 is an explanatory view showing a manufacturing process of a juxtaposed sheet body of magnetic field correcting strip-shaped sheets of the present invention.

FIG. 20 is an explanatory diagram of a case where a weak adhesive layer is provided on the surface of a release sheet.

FIG. 21 is a perspective view showing a state in which a ferrite powder-containing resin small piece is attached to the inner surface of the deflection yoke.

FIG. 22 is a perspective view showing a conventional magnetic field correcting strip-shaped sheet.

FIG. 23 is a cross-sectional explanatory view showing a state in which a magnetic field correction strip sheet is set in the gap between the cathode ray tube neck portion and the deflection yoke.

FIG. 24 is a cross-sectional explanatory view showing another state in which a magnetic field correction band-shaped sheet is set in the gap between the cathode ray tube neck portion and the deflection yoke.

FIG. 25 is an explanatory view showing an example of a conventional magnetic field correction strip-shaped sheet.

FIG. 26 is an explanatory view showing another example of a conventional magnetic field correction strip-shaped sheet.

FIG. 27 is an explanatory perspective view showing a state in which the laminated body is cut at the final stage of the manufacturing process of the conventional magnetic field correction strip-shaped sheet.

FIG. 28 is an explanatory front view showing a state in which the laminated body is cut at the final stage of the manufacturing process of the conventional magnetic field correction strip-shaped sheet.

[Explanation of symbols]

1 Side-by-side sheet body for magnetic field correction strips 2 Magnetic field correction strip 3 Release sheet 4 Synthetic resin strip support plate 4'Synthetic resin plate 4 "Synthetic resin support plate 5 Ferrite sheet piece 5'Ferrite powder mixed resin Sheet 6 Adhesive means 6A Adhesive means 6'Double-sided adhesive sheet 6 "Double-sided adhesive sheet 6a Adhesive layer 6a 'Adhesive surface 6a" Adhesive surface 6b Base material 6b' Base material 6b "Base material 6c Adhesive layer 6c 'Adhesive surface 6c" Adhesive surface 7 Adhesive means 7A Adhesive means 7'Adhesive sheet 7 "Adhesive sheet 7a Adhesive layer 7a 'Adhesive surface 7b Base material 7b' Base material 7c Adhesive layer 7c 'Adhesive surface 8 Weak adhesive layer 9 Separation Pattern paper 9'Release paper 10 Ferrite sheet laminate 11 Release paper 12 Cutting blade 13 Ear A A Deflection yoke B Braun tube a Magnetic field correction strip sheet a'Magnetic field correction strip sheet continuum b Synthetic resin strip support plate b ' Resin support plate c Ferrite sheet piece d Adhesive means d2 Adhesive means d11 Adhesive layer d12 Base material d13 Adhesive layer d14 Release paper e1 Adhesive means e2 Adhesive means e11 Adhesive e12 Base material e13 Adhesive f Ferrite powder compound resin Small piece Z base

Claims (3)

[Claims] 1. A small piece made of a resin containing ferrite powder is attached by adhesive means to one end in the longitudinal direction of an elastically deformable synthetic resin band-shaped support plate, and at the other end, pressure sensitive to the inner surface of the deflection yoke or the cathode ray tube wall. A plurality of magnetic field correction strip-shaped sheets provided with a sticking unit are provided adjacent to each other on a release sheet having a width substantially equal to or longer than the length of the magnetic field correction strip-shaped sheet by the adhesive portion of the sticking unit. A juxtaposed sheet body of strip-shaped sheets for magnetic field correction of deflection yokes that are juxtaposed. 2. A step of producing a synthetic resin support plate by dividing a long and wide elastic synthetic resin plate in the width direction, and separating at least one surface of a sheet body whose front and back surfaces are adhesive surfaces. A step of laminating a ferrite powder-containing resin sheet having the same width as the double-sided adhesive sheet on the side where the adhesive surface of the double-sided adhesive sheet on which the pattern paper or release film is laminated is exposed, and the double-sided adhesive sheet and the ferrite powder. A step of dividing the laminate with the compounded resin sheet into a plurality of pieces in the width direction, and a plurality of pieces of an adhesive sheet in which a release paper or a release film is laminated on one side of a sheet body having at least front and back surfaces being adhesive surfaces A step, a component manufacturing process consisting of, and exposing while peeling the release paper or release film from the laminate of the double-sided adhesive sheet and the ferrite powder-containing resin sheet produced by the component manufacturing process. A step of laminating and adhering the adhesive surface along one end in the width direction of the synthetic resin support plate produced by the component production step, and the adhesive sheet produced by the component production step as release paper or release film. While peeling off, one surface of the front and back adhesive surface is laminated and adhered along the other end side of the synthetic resin support plate in which the ferrite powder-containing resin sheet is laminated along one end side, and after lamination. A release sheet having a width substantially equal to or larger than that of the synthetic resin support plate on the exposed surface of the adhesive sheet of the adhesive sheet, across the adhesive surface of the adhesive sheet and the ferrite powder-containing resin sheet. The step of laminating and adhering, the ferrite powder-containing resin sheet is located on one end side of the synthetic resin support plate, and the adhesive sheet is located on the other end side. In the laminated sheet body in which the release sheet is in a laminated state, half cuts are cut at a constant dimension in the longitudinal direction of the laminated sheet body to cut into a depth position where the release sheet remains from the synthetic resin support plate. And a method of manufacturing a juxtaposed sheet body of magnetic-field-correcting strip-shaped sheets of a deflection yoke, which comprises: 3. A method of manufacturing a juxtaposed sheet body of magnetic field correcting strips of a deflection yoke according to claim 2, wherein a weak adhesive is applied to a surface of the release sheet which faces the synthetic resin support plate.