JP3259909B2 - Deflection yoke tightening band, deflection yoke, and method of manufacturing deflection yoke tightening band - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the deflection yoke clamping band and a deflection yoke for securing to the neck of a cathode ray tube (CRT) deflection yoke, and relates to the production how dated deflection yoke clamping band.

[0002]

2. Description of the Related Art It is well known that when a deflection yoke having a funnel-shaped separator is fixed to a neck portion of a CRT, a cylindrical portion at a small diameter side of the separator is fastened by a deflection yoke tightening band. That is.

Here, a general configuration of a deflection yoke tightening band (hereinafter, abbreviated as a tightening band) will be described with reference to FIG. FIG. 7 is a perspective view showing a general fastening band 8. As shown in FIG. 7, the tightening band 8 includes a circumferential portion 8a and protruding pieces 8 protruding from both ends of the circumferential portion 8a.
b, 8b and a bolt 8c attached so as to pass through a hole formed in the protruding piece 8b. The circumferential portion 8a and the protruding piece 8b are formed integrally. The tightening band 8 is generally made of a non-magnetic material such as austenitic stainless steel so as not to affect the magnetic field characteristics generated by the deflection yoke.

The circumferential portion 8a of the tightening band 8 is provided with two engaging members for engaging a pair of projections provided on a cylindrical portion at the distal end of the deflection yoke (not shown) on the small diameter side of the separator. The mating holes 8a1 and 8a1 are provided. The diameter of the circumferential portion 8a is slightly larger than the diameter of the cylindrical portion of the separator, and the tightening band 8 is mounted so that the circumferential portion 8a covers the outer periphery of the cylindrical portion of the separator. And
The engaging holes 8a1 and 8a1 are engaged with the above-mentioned projections and are locked on the cylindrical portion.

[0005] Of the holes formed in the protruding piece 8b, the bolt 8
The hole on the side opposite to the head 8c1 of c is threaded, and the bolt 8c is screwed into this screw hole. Therefore, by rotating the bolt 8c, the inner circumferential size of the tightening band 8 changes. When the bolt 8c is rotated in a direction to reduce the inner circumferential size in a state where the tightening band 8 is fitted in the cylindrical portion, the cylindrical portion has flexibility, so that the circumferential portion 8a is formed.
Tightens the neck of the CRT through the cylindrical part. In this way, the deflection yoke is connected to the CRT by the tightening band 8.
It is fixed to the neck part.

[0006]

When the fastening band 8 is mounted on the cylindrical portion of the separator of the deflection yoke and the deflection yoke is fixed to the neck portion of the CRT,
The bolt 8c is rotated with a high torque to tighten the neck of the CRT so that the deflection yoke does not come off the CRT due to an external shock or vibration. At this time, it is common to use a tool such as an electric screwdriver in order to shorten the time for fixing the deflection yoke to the CRT and improve productivity. Therefore, a considerable force is applied to the bolt 8c.

Also, if the bolt 8c is rotated in a state where the tightening band 8 is not properly mounted on the cylindrical portion of the separator in the deflection yoke, an excessive force may be applied to the bolt 8c. is there. Further, the deflection yoke once mounted on the CRT is moved to C
It may be removed from the RT and remounted. In this case, a plurality of tightening operations are performed, and an excessive force is applied to the bolt 8c.

As described above, when the bolt 8c screwed into the screw hole of the protruding piece 8b is rotated, a strong force is applied between the screw portion of the screw hole and the bolt 8c, or the sliding is performed more than necessary. If repeated, the bolt 8c may bite or seize the thread of the protruding piece 8b.

Once galling or seizure occurs between the bolt 8c and the thread of the protruding piece 8b, the bolt 8c
Will not rotate, and it will not be possible to change the in-circle dimension of the circumferential portion 8a. In this case, the deflection yoke to which the tightening band 8 is attached becomes defective, and the tightening band 8 is destroyed and removed.
A new tightening band 8 must be fitted. Therefore, extra cost is required and extra work is required.

Furthermore, the fastening band 8 may be deformed, and in order to remove the deformed fastening band 8, the deflection yoke or the CRT may be broken.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a deflection yoke tightening band and a deflection yoke capable of extremely effectively preventing galling and seizure of a bolt on a thread portion, and a deflection yoke. an object of the present invention is to provide a manufacturing how the tightening band.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention provides the following deflection yoke tightening bar.
And deflection yoke, and deflection yoke tightening band
A manufacturing method is provided. (1) A deflection yoke tightening band for fixing a deflection yoke provided with a funnel-shaped separator to a neck portion of a cathode ray tube, and a circumferential portion abutting on a cylindrical portion at a small diameter end of the separator; 1 protruding outward from both ends of the periphery
A deflection yoke tightening band, comprising: a pair of projecting pieces; and a bolt attached to the pair of projecting pieces so that at least one of the projecting pieces passes through a pair of screw holes. Liquid having the following molecular structure on the surface of
Jo fluorine Cajun lubricant to ^{3 × 10 -3 ~13 × 10 -3} mg /
A deflection yoke tightening band, wherein the band is attached with an attachment amount of mm ² .

Embedded image (2) A deflection yoke provided with a funnel-shaped separator attached to the neck of a cathode ray tube, wherein the deflection yoke is in contact with a cylindrical portion at the tip on the small diameter side of the separator, and is located outside both ends of the circumference. Deflection yoke tightening comprising: a pair of projecting pieces projecting in the direction; and a bolt formed so as to pass through a pair of holes formed at least one of the threaded holes in the pair of projecting pieces. in the deflection yoke fixed to the neck portion by the band, said the surface of the bolt of the deflection yoke clamping band, hydrofluoric <br/> containing Cajun lubricant to 3 × 10 ^-3 ~ liquid having the following molecular structure A deflection yoke having an adhesion amount of 13 × 10 ⁻³ mg / mm ² .

Embedded image (3) A deflection yoke tightening band for fixing a deflection yoke provided with a funnel-shaped separator to a neck portion of a cathode ray tube, the separator having a pair of projecting pieces projecting outward from both ends. A deflection portion comprising: a circumferential portion abutting on a cylindrical portion at the tip of the small diameter side; and a bolt attached to at least one of the pair of projecting pieces so as to pass through a pair of screw holes. In a method of manufacturing a deflection yoke tightening band for manufacturing a yoke tightening band , a liquid fluorine having the following molecular structure is provided on the surface of the bolt.
A first step of adhering the Cajun lubricant at ^{3 × 10 -3 ~13 × 10 -3} mg / mm 2 comprising attachment amount, the said projecting piece 1
A second step of attaching the bolts to the pair of holes and integrating the circumferential portion and the bolts in any order.

Embedded image (4) A deflection yoke tightening band for fixing a deflection yoke provided with a funnel-shaped separator to a neck portion of a cathode ray tube, the separator having a pair of projecting pieces projecting outward from both ends. A deflection portion comprising: a circumferential portion abutting on a cylindrical portion at the tip of the small diameter side; and a bolt attached to at least one of the pair of projecting pieces so as to pass through a pair of screw holes. the method of manufacturing a deflection yoke clamping band for producing yoke clamping band, the bolt, the liquid containing the fluorine Cajun lubricant liquid having the following molecular structure, with recycled or stirring the liquid given 3 × 10 ^{-3 to} 13 × 10 ^-3 mg
A first step of adhering with an adhesion amount of / mm ² and the bolt to which the lubricant has adhered in the first step.
A second step of attaching to the pair of holes of the protruding piece to integrate the circumferential portion and the bolt.

Embedded image

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the deflection yoke clamping band and deflection yoke of the present invention, as well, with the production how dated deflection yoke clamping band will be described with reference to the accompanying drawings. FIG.
FIG. 2 is a perspective view showing one embodiment of the deflection yoke tightening band of the present invention, FIG. 2 is a perspective view showing one embodiment of the deflection yoke of the present invention, and FIG. 3 is a deflection yoke using the deflection yoke tightening band of the present invention. FIG. 4 is a side view showing a state in which is mounted on a cathode ray tube, FIG. 4 is a partially cutaway sectional view for explaining a method of manufacturing a deflection yoke tightening band of the present invention, and FIGS. Oh <br/> Ru in plan view for explaining the manufacturing method of biasing bands. 1 and 2, the same parts as those in FIG. 7 are denoted by the same reference numerals.

First, the configuration of the deflection yoke of the present invention to which the deflection yoke tightening band of the present invention (hereinafter, abbreviated as a tightening band) is attached will be described with reference to FIG. The deflection yoke 1 shown in FIG. 2 is formed in a funnel shape having one large diameter portion 1a and the other small diameter portion 1b by combining, for example, a pair of semi-annular separators 2. In addition,
The separator 2 is made of an insulating resin, and is formed of, for example, modified polyphenylene ether (modified PPE).

A horizontal deflection coil (not shown) is mounted inside the separator 2, and a vertical deflection coil 3 is mounted outside the separator 2. A core 4 made of ferrite is attached to the outside of the vertical deflection coil 3. A flange 5 is provided on the small diameter portion 1b side of the separator 2.
a, 5b are provided, and various components are attached to the flanges 5a, 5b.

The end of the separator 2 on the small diameter portion 1b side is a cylindrical portion 6 formed by a plurality of tongues erected on the flanges 5a and 5b. A pair of protrusions 7, 7 (here, one protrusion 7 is not visible) is formed on the cylindrical portion 6. A tightening band 80 of the present invention is mounted on the outer periphery of the cylindrical portion 6. The deflection yoke 1 shown in FIG.
Is a so-called saddle-saddle type, but the deflection yoke of the present invention is not limited to this, and may have another configuration such as a saddle-toroidal type.

Here, the tightening band 80 of the present invention will be described in detail with reference to FIG. As shown in FIG.
The tightening band 80 according to the present invention has a circumferential
a and projecting pieces 8 projecting from both ends of the circumferential portion 8a.
b, 8b and a bolt 8c attached so as to pass through a hole formed in the protruding piece 8b. The circumferential portion 8a and the protruding piece 8b are formed integrally. The tightening band 80 is made of a non-magnetic material such as austenitic stainless steel so as not to affect the magnetic field characteristics generated by the deflection yoke.

The circumferential portion 8a of the tightening band 80 is provided with two engaging holes 8a1, 8a1 for engaging with a pair of projections 7, 7 of the separator 2 in the deflection yoke 1 shown in FIG. ing. The diameter of the circumferential portion 8 a is formed slightly larger than the diameter of the cylindrical portion 6 of the separator 2, and
2 is mounted so that the circumferential portion 8a covers the outer periphery of the cylindrical portion 6 of the separator 2 as shown in FIG. Then, the engaging holes 8a1, 8a1 are engaged with the projections 7, 7, so that the cylindrical portion 6
To lock.

Of the holes formed in the protruding piece 8b, the bolt 8
The hole on the side opposite to the head 8c1 of c is threaded, and the bolt 8c is screwed into this screw hole. Therefore, by rotating the bolt 8c, the inner circumferential dimension of the tightening band 80 changes. Bolt 8c of tightening band 80 of the present invention
Is coated with a lubricant 9. The lubricant 9 may be applied to a screw hole formed in the protruding piece 8b. Also, bolt 8
The lubricant 9 may be applied to both c and the screw hole. Thus, in the tightening band 80 of the present invention, the lubricant 9 is interposed between the screw hole and the bolt 8c.

When applying the lubricant 9 to the bolt 8c, the lubricant 9 may be applied to the entire bolt 8c, or may be applied only to the portion of the protruding piece 8b that contacts the screw hole. Before screwing the bolt 8c into the screw hole,
c or the screw hole may be coated with the lubricant 9, or the fastening band 80 may be attached to the cylindrical portion 6 of the deflection yoke 1 and the bolt 8c may be rotated to rotate the neck portion 100N of the CRT 100 (shown in FIG. 3). Immediately before tightening the lubricant 9 (shown in FIG. 3)
May be applied. This is because the bolt 8c may bite or seize the thread of the protruding piece 8b.
By rotating the bolt 8c, the neck 100 of the CRT 100 is rotated.
This is because a strong force is applied between the bolt 8c and the screw portion when N is tightened.

It is most preferable that the lubricant 9 is a fluorine-based lubricant because it can prevent galling and seizure between the bolt 8c and the thread portion of the protruding piece 8b. Was confirmed by experiments by the present inventors.

As the fluorine-based lubricant 9, for example, "BARRIERTA J FLUID" represented by "J100" manufactured by NOK Kluber Co., Ltd. can be used. The molecular structure of this lubricant is as shown below.

[0023]

Embedded image

It has been confirmed that the local temperature at which galling or seizure occurs between the bolt 8c and the thread portion of the protruding piece 8b reaches as high as 140 ° C. Therefore, it is desirable that the lubricant 9 has a temperature characteristic that can withstand 140 ° C. or more. The above-mentioned “J100” has a temperature characteristic that can withstand even 200 ° C. or more, and exhibits an excellent effect in preventing galling and image sticking.

Then, with the tightening band 80 fitted in the cylindrical portion 6, the bolt 8
When c is rotated, the cylindrical portion 6 has flexibility, so that the circumferential portion 8a tightens the neck portion 100N of the CRT 100 via the cylindrical portion 6, as shown in FIG. At this time, since the lubricant 9 is applied to the bolt 8c in advance, there is no galling or seizure between the bolt 8c and the threaded portion of the protruding piece 8b, and the bolt 8c is extremely excellent.
c can be rotated. Thus, the deflection yoke 1 is fixed to the neck 100N of the CRT 100 by the tightening band 80. Note that in FIG.
Is an electron gun.

Here, the screw hole of the projecting piece 8b and the bolt 8c
A preferred embodiment in which the lubricant 9 is interposed between the first embodiment and the second embodiment will be described. When the lubricant 9 is applied in advance to the screw hole of the protruding piece 8b or the bolt 8c, the lubricant 9 is applied as a part of a manufacturing process of manufacturing the tightening band 80 by combining the circumferential portion 8a and the bolt 8c. can do. Also, CR
When the lubricant 9 is applied immediately before the neck portion 100N of the T100 is tightened, the lubricant 9 may be applied as a part of a mounting process of mounting the deflection yoke 1 on the CRT 100.

The amount of the lubricant 9 to be applied (adhered amount) is preferably set to a necessary minimum within a range where the effect of preventing galling and seizure can be obtained from the viewpoint of cost and environment. Therefore, when the lubricant 9 is applied to the bolt 8c, the following embodiments can be used. Although the case where the lubricant 9 is applied to the bolt 8c is shown here, the same applies to the case where the lubricant 9 is applied to the screw hole.

<First Embodiment> The lubricant 9 is diluted with a diluent, and the bolt 8c is immersed in the diluent and taken out to volatilize the diluent. In this case, a volatile diluent or water is used as the diluent. When it is difficult to dissolve the lubricant 9, the lubricant 9 and the diluent are thoroughly stirred and uniformly mixed. This makes it possible to apply the lubricant 9 thinly.

<Second Embodiment> The viscosity of the lubricant 9 is temporarily reduced by heating or the like, and the bolt 8c is immersed therein and taken out. By lowering the viscosity of the lubricant 9, an unnecessary amount of the lubricant 9 does not adhere to the bolt 8c. This makes it possible to apply the lubricant 9 thinly.

<Third Embodiment> After the lubricant 9 is applied to the bolt 8c, an extra amount of the lubricant 9 is mechanically removed by using a dehydration tank, a centrifuge, or the like. This makes it possible to apply the lubricant 9 thinly.

<Fourth Embodiment> The lubricant 9 is diluted with a diluent, and the bolt 8c is immersed in the lubricant 9 and taken out. afterwards,
The diluent is dissolved by a dissolving chemical or the like, and further washed to chemically remove the diluent. This makes it possible to apply the lubricant 9 thinly.

The method of applying these lubricants 9 is as follows.
Although the method of immersing c in the lubricant 9 has been described, a method of applying it to a necessary portion with a brush or the like may be used. However,
The simplest method is to immerse the bolts 8c in the lubricant 9 all at once. Further, the above-described first to fourth embodiments may be appropriately combined.

In summary, the method of manufacturing the fastening band 80 may be performed by the following steps. A fluorine-based lubricant 9 is applied to at least one of the bolt hole 8c or the screw hole of the protruding piece 8b in the circumferential portion 8a.
c is attached to a pair of holes of the protruding piece 8b to integrate the circumferential portion 8a and the bolt 8c. Alternatively, the bolt 8c is attached to a pair of holes of the protruding piece 8b, and the circumferential portion 8a and the bolt 8c are attached.
And then the bolt 8c or the circumferential portion 8a
A fluorine-based lubricant 9 is applied to at least one of the screw holes of the protruding piece 8b.

At this time, when applying the lubricant 9, it is desirable to include at least one of a step of diluting the lubricant 9, a step of heating the lubricant 9, and a step of removing excess lubricant 9.

Further, when the conventional tightening band 8 to which the lubricant 9 is not applied is used, a method for mounting the deflection yoke on the CRT may be performed by the following steps. Here, the description will be made using the numbers shown in FIG. 2 for convenience. First, a fluorine-based lubricant 9 is applied to at least one of the bolt 8c of the tightening band 8 or the screw hole of the protruding piece 8b in the circumferential portion 8a to obtain the tightening band 80 of the present invention.
Thereafter, the tightening band 80 is attached to the cylindrical portion 6 which is the end of the deflection yoke 1 on the side of the small diameter portion 1b of the separator 2.

Alternatively, the bolt 8c or the screw hole of the protruding piece 8b in the circumferential portion 8a is inserted into the tightening band 8 previously mounted on the cylindrical portion 6 which is the end of the separator 2 of the deflection yoke 1 on the small diameter portion 1b side. Is coated with a fluorine-based lubricant 9.

Thereafter, the deflection yoke 1 is mounted on the CRT 100, and the bolt 8c is rotated to tighten the circumferential portion 8a.
The neck portion 100N of the CRT 100 is tightened via the cylindrical portion 6.

As another method, the cylindrical portion 6 of the separator 2
The deflection yoke 1 on which the tightening band 8 is mounted in advance
100, a fluorine-based lubricant 9 is applied to at least one of the bolt 8c of the tightening band 8 or the threaded hole of the protruding piece 8b in the circumferential portion 8a to obtain the tightening band 80 of the present invention. Then, the bolt 8c is rotated to rotate the circumferential portion 8
a, and the neck portion 100N of the CRT 100 is tightened via the cylindrical portion 6.

Also in these cases, when applying the lubricant 9, at least one of a step of diluting the lubricant 9, a step of heating the lubricant 9, and a step of removing the excess lubricant 9 is required. Is desirable.

As described above, it is preferable that the applied amount (adhered amount) of the lubricant 9 be minimized within a range where the effect of preventing galling and seizure can be obtained from the viewpoint of cost and environment. As a result of detailed experiments, the inventor has found that the lubricant 9 interposed between the screw hole of the projecting piece 8b and the bolt 8c
Means that if the coating amount is too small, the effect of preventing galling and image sticking cannot be obtained, and conversely, if the coating amount is too large, the effect of preventing galling and image sticking cannot be obtained. Was found. In other words, the inventor has found a desirable application amount of the lubricant 9. Hereinafter, this will be described in detail.

Here, the above-mentioned “J10” is used as the lubricant 9.
0 ", and the test tightening band 8 is applied to the bolt 8c with various amounts of the lubricant 9 per unit area applied thereto.
0 was used. Then, the bolt 8c was tightened with a tightening torque of 1.96 [N · m] to each of the samples of the tightening band 80, loosened, and this “tightening-loosening” was continuously repeated. The experimental results shown in Table 1 below are evaluations of the rate of galling by the above experiments.

[0042]

[Table 1]

As shown in Table 1, the test tightening band 8
0 is 11 types of sample numbers 1 to 11, and
An experiment was conducted by preparing a large number of samples of each type of tightening band 80. The amount of each lubricant 9 attached is as shown in Table 1.

Regarding the galling prevention effect, ◎ indicates the maximum effect, ○ indicates the maximum effect, Δ indicates the small effect, and x indicates the minimum effect. In addition,
The maximal effect of ◎ means that no galling occurs when the above-mentioned “tightening-loosening” is performed up to 20 times, and the number of galling (including seizure) occurs up to 100 times is 10%. In the following, the large effect of ○ means that no galling occurs up to 20 times, and the number of galling occurs up to 100 times is more than 10% and 25% or less. It was taken. In addition, the small effect of △
Up to 20 times, 25% of galling occurred
And the number of occurrences of galling is 50% or less and the number of times is up to 100 times.
Up to 20 times, 25% of galling occurred
And 50% or less, and the number of times of galling has occurred is 75% or less with the number of times being up to 100 times.

As can be seen from Table 1, the lubricant 9 is
It is desirable to attach to the bolt 8c with an attachment amount of 3 × 10 ^{−3 to} 13 × 10 ⁻³ mg / mm ² . More preferably, the adhesion amount is 5 × 10 ^{−3 to} 9 × 10 ⁻³ mg / mm ² . The amount of the lubricant 9 applied is 3 × 10 ^{−3 to} 13 × 10 ⁻³ m
g / mm ² , deflection yoke 1 (tightening band 80)
According to the normal use condition, there is almost no problem that galling or seizure occurs in the fastening band 80. Further, the adhesion amount of the lubricant 9 is 5 × 10 ^{−3 to} 9 × 10
^-3 mg / mm ² , even if the deflection yoke 1 is used in a severe condition, that is, even if the fastening band 80 is frequently attached to and detached from the cylindrical portion 6, galling and seizure of the fastening band 80 may occur. Hardly ever.

Here, the lubricant 9 is used in an amount of 3 × 10 ^{−3 to} 13 ×
A detailed method of attaching to the bolt 8c with an attachment amount of 10 ⁻³ mg / mm ² will be described for the case of the above-described <First Embodiment>. As an example of the diluent, "HFE-7100" (hydrofluoroether) (hereinafter referred to as "7100") manufactured by Sumitomo 3M Limited is used. The dilution ratio ("J100": "7100") is adjusted to 1: 8 to 1:15 by volume, and the mixture is appropriately stirred. “J10
“0” dissolves well in “7100.” The bolt 8c is immersed in the diluent for a predetermined time and taken out to volatilize “7100.” The immersion time of the volt 8c in the diluent is about 10 minutes. “7100” is highly volatile and evaporates quickly.

According to an experiment conducted by the present inventor, the number of bolts 8c immersed in a diluent containing a lubricant 9 is
It has been confirmed that the amount of the lubricant 9 attached to the bolt 8c may be different. Specifically, “J100”:
A volume ratio of “7100” = 1: 9, and as a result of immersion treatment of different numbers of bolts 8c in 0.5 liter of diluent, when the number of bolts 8c is 20, 9.03 × 1
0 ^-3 mg / mm ² , and 5.98 × 10 ^-3 mg / mm ² when 140 bolts 8c were used. In this example, there is a difference in the amount of adhesion of 3.05 × 10 ⁻³ mg / mm ² , and when the number of bolts 8c is increased,
It was confirmed that the amount of the lubricant 9 adhered to c tended to decrease.

As described above, when the bolt 8c is immersed in the liquid containing the lubricant 9, the amount of the lubricant 9 attached to the bolt 8c changes depending on the number of the bolts 8c. Means that the number of bolts 8c must be strictly controlled when the bolts 8c are immersed in order to cause the bolts 8c to adhere to the bolts 8c with the desired amount of adhesion as described above. This is not preferable for the manufacturing process of the tightening band 80.

As a result of various experiments, the inventor found that the lubricant 9
When the bolt 8c is immersed in the liquid containing
It has been found that the amount of the lubricant 9 attached to the bolt 8c can be made substantially constant regardless of the number of the bolts 8c. FIG.
6A to 6C are diagrams for explaining a method of manufacturing the tightening band 80 for stabilizing the amount of the lubricant 9 attached to the bolt 8c.

In FIG. 4, a tank 10 contains a diluent 20 obtained by mixing a lubricant 9 and a diluent at a predetermined volume ratio. The tank 10 is provided with a pump 11 for circulating the diluent 20. The diluent 20 is sent from the outlet 12 to the pump 11, passes through the pipe 14, and returns to the tank 10 from the outlet 13. The discharge port 12 and the discharge port 13 are located below the level of the diluent 20 and are provided so as to be different in height in the diagonal direction of the tank 10. This is to prevent the entrainment of air during the circulation of the diluent 20, and to generate a larger convection.

By driving the pump 11, the diluent 20 repeats the circulation of returning from the outlet 12 through the pipe 14 and returning from the outlet 13 to the tank 10. The driving force of the pump 11 is such that the diluent 20 sufficiently convects in the tank 10. Thereby, the diluent 2
0 is uniformly mixed in the tank 10 and brought into a stirring state. A fan 15 may be provided near the discharge port 13 in order to maintain a more uniform mixing and stirring state of the diluent 20.

A mesh basket 16 containing an arbitrary number of bolts 8c is suspended from the upper portion of the tank 10 thus configured, and the bolts 8c are immersed in the diluent 20.
By circulating or agitating the diluting liquid 20, the lubricant 9 is supplied to the bolt 8c regardless of the number of bolts 8c.
It adheres to c with a substantially constant amount. Further, the mesh basket 16 is connected to a motor 17, and by rotating the mesh basket 16 at an appropriate speed by the motor 17, the diluent 2
0 can be maintained in a more uniform mixing / stirring state, and the amount of the lubricant 9 attached can be further stabilized. The basket 16 may be swung up and down or left and right.

Further, in order to maintain a more uniform mixing / stirring state, as shown in FIGS. 5 and 6, a blade 18 may be attached to the outer peripheral portion or upper portion of the net basket 16. In addition, FIG.
FIG. 6 is a diagram of the net basket 16 viewed from the side, and FIG. When the mesh basket 16 on which the blades 18 are mounted is rotated, strong convection is generated in the diluent 20 by the blades 18, and the diluent 20 is guided into the inside of the net basket 16. As described above, when the bolt 8c is immersed in the liquid containing the lubricant 9, the liquid is circulated or agitated so that the bolt 8c can be irrespective of the number of bolts 8c.
Can be made substantially constant.

As described above, the bolt 8c having the lubricant 9 adhered thereto is attached to the pair of holes formed in the protruding piece 8b after the diluent is volatilized as described above.
a and the bolt 8 c are integrated into a tightening band 80.

Although the embodiment shown in FIGS. 4 to 6 is a preferred embodiment for circulating or stirring the liquid containing the lubricant 9, the method for manufacturing the tightening band 80 of the present invention is as follows. It is not limited to this. Circulation of the diluent 20 by the pump 11, stirring of the diluent 20 by the fan 15,
Rotation or swing of the mesh basket 16, the blade 1 for the mesh basket 16
It is not always necessary to carry out all the additions of 8, and they may be used in an appropriate combination. Further, another method for obtaining the same effect may be used, or a combination thereof may be used.

Further, in this embodiment, only the bolt 8c is immersed in the liquid containing the lubricant 9, but the circumferential portion 8a and the bolt 8c are integrated, and the whole is converted into the liquid containing the lubricant 9. An immersion treatment may be performed. That is, a first step of immersing the bolt 8c in a liquid containing the lubricant 9 for a predetermined time while circulating or stirring the liquid, and projecting the bolt 8c to which the lubricant 9 has adhered in the first step. Piece 8b
A second step of integrating the circumferential portion 8a and the bolt 8c by attaching the bolt 8c to the pair of holes, or attaching the bolt 8c to the pair of holes of the protruding piece 8b. Then, the first step of integrating the circumferential portion 8a and the bolt 8c, and the circumferential portion 8a and the bolt 8c integrated by the first step are combined with the liquid containing the lubricant 9 to obtain the liquid. The fastening band 80 may be manufactured by the second step of immersing for a predetermined time while circulating or stirring. The reason why the lubricant 9 is required is that the bolt 8c
Is a portion that comes into contact with the screw hole, and it is more preferable to immerse only the bolt 8c in a liquid containing the lubricant 9.

[0057]

As described in more detail, according to the present invention, the deflection yoke clamping band and deflection yoke of the present invention, as well as producing how dated band deflection yoke tightening, on the surface of the bolt, the above-described
A liquid fluorine Cajun lubricants having a molecular structure 3 × 10 ^-3 ~
Since the adhesion was performed at an adhesion amount of 13 × 10 ⁻³ mg / mm ² , galling and seizure of the bolt to the screw portion can be extremely effectively prevented. That is, galling or seizure does not occur due to too little or too much lubricant, and no unnecessary lubricant is used. Therefore, it is possible to prevent the cost for replacing the deflection yoke tightening band and the occurrence of replacement work.

In the method of manufacturing the deflection yoke tightening band according to the present invention, the bolt is immersed in a liquid containing a fluorine-based lubricant for a predetermined time while circulating or stirring the liquid. Irrespective of the number of the bolts, the amount of the lubricant attached to the bolt can be made substantially constant. Therefore, since the lubricant can be applied to the bolts in a desired amount, the galling and seizure due to too little or too much lubricant do not occur, and use of unnecessary lubricant more than necessary Nor.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a deflection yoke tightening band of the present invention.

FIG. 2 is a perspective view showing one embodiment of a deflection yoke of the present invention.

FIG. 3 is a side view showing a state in which the deflection yoke is mounted on the cathode ray tube by the deflection yoke tightening band of the present invention.

FIG. 4 is a partially cutaway sectional view for explaining the method of manufacturing the deflection yoke tightening band of the present invention.

FIG. 5 is a plan view for explaining a method of manufacturing the deflection yoke tightening band of the present invention.

FIG. 6 is a plan view for explaining a method of manufacturing the deflection yoke tightening band of the present invention.

FIG. 7 is a perspective view showing an example of a conventional deflection yoke tightening band.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deflection yoke 1a Large diameter part 1b Small diameter part 2 Separator 3 Vertical deflection coil 4 Core 5a, 5b Flange 6 Cylindrical part 7 Projection 8a Circular part 8a1 Engagement hole 8b Projection piece 8c Bolt 8c1 Head 9 Lubricant 10 Tank 11 Pump 12 Discharge port 13 Discharge port 14 Pipe tube 15 Fan 16 Mesh basket 17 Motor 18 Blade 20 Diluent 80 Deflection yoke tightening band 100 Cathode ray tube (CRT) 100N Neck part 101 Electron gun

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-50-126734 (JP, A) JP-B-55-9566 (JP, B1) Jikyo Hei 2-32686 (JP, Y2) (58) Field (Int.Cl. ⁷ , DB name) H01J 29/76 H01J 29/82 H01J 9/236 H01J 9/44 F16B 33/06 F16B 25/00 F16B 2/08 B05D 7/00

Claims (5)

(57) [Claims] 1. A deflection yoke tightening band for fixing a deflection yoke provided with a funnel-shaped separator to a neck portion of a cathode ray tube, a circumferential portion abutting on a cylindrical portion at a small-diameter end of the separator; A pair of projecting pieces projecting outward from both ends of the circumferential portion, and at least one of the pair of projecting pieces is attached so as to pass through a pair of screw holes. in the deflection yoke clamping band that includes a bolt, a surface of the bolt, the following liquid having a molecular structure of full <br/> Tsu containing Cajun lubricant to ^{3 × 10 -3 ~13 × 10 -3} mg / mm ²
A deflection yoke tightening band, wherein the band is attached with a variable amount of attachment. Embedded image 2. A deflection yoke provided with a funnel-shaped separator mounted on a neck portion of a cathode ray tube, wherein a circumferential portion abuts a cylindrical portion at a small-diameter end of the separator, and both ends of the circumferential portion. A pair of projecting pieces projecting more outward,
A deflection yoke fixed to the neck by a deflection yoke tightening band including a bolt attached so that at least one formed in the pair of projecting pieces penetrates a pair of screw holes. on the surface of the bolt of the deflection yoke clamping band, below
3 fluorine Cajun lubricant liquid having a molecular structure × 10 ^-3
A deflection yoke having a deposition amount of about 13 × 10 ⁻³ mg / mm ² . Embedded image 3. A deflection yoke tightening band for fixing a deflection yoke provided with a funnel-shaped separator to a neck portion of a cathode ray tube, comprising a pair of projecting pieces projecting outward from both ends. A circumferential portion that abuts a cylindrical portion at a small-diameter end of the separator, and a bolt that is attached to at least one of the pair of projecting pieces so as to penetrate a pair of screw holes. the method of manufacturing a deflection yoke clamping band for producing deflection yoke clamping band of the on the surface of the bolt, liquid full <br/> Tsu containing Cajun lubricant to 3 × 10 having the following molecular structure ^{- 3 to} 13 × 10 ^-3 mg / mm ²
A first step of attaching with a given amount of attachment; attaching the bolt to the pair of holes of the projecting piece;
A method for manufacturing a deflection yoke tightening band, comprising: in any order, a second step of integrating the circumferential portion and the bolt. Embedded image 4. The method according to claim 3, wherein the first step includes at least one of a step of diluting the lubricant, a step of heating the lubricant, and a step of removing excess lubricant. A manufacturing method of the deflection yoke tightening band described in the above. 5. A deflection yoke tightening band for fixing a deflection yoke provided with a funnel-shaped separator to a neck portion of a cathode ray tube, comprising a pair of projecting pieces projecting outward from both ends. A circumferential portion that abuts a cylindrical portion at a small-diameter end of the separator, and a bolt that is attached to at least one of the pair of projecting pieces so as to penetrate a pair of screw holes. A method of manufacturing a deflection yoke tightening band for manufacturing a deflection yoke tightening band, comprising : forming a bolt as a liquid fluorine- based material having the following molecular structure:
A liquid containing or lubricants, is immersed a predetermined time while circulating or stirring the ^{liquid, 3 × 10 -3 ~13 × 10} -3
a first step of depositing in mg / mm ² comprising attachment amount, the first of said bolts the lubricant is attached by a process, attached to the pair hole of said projecting pieces, said circumferential portion And a second step of integrating said bolt with said bolt. Embedded image