JP3506313B2 - Deflection yoke device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing for accommodating a magnetic field characteristic correcting component (for example, a magnet) for correcting a magnetic field characteristic such as correction of misconvergence. The present invention relates to a deflection yoke device having an improved structure. FIG. 11 is a perspective view showing an example of a conventional deflection yoke device. In FIG. 11, this deflection yoke device has a large-diameter part on one side (lower side in the figure) and a small-diameter part on the other side (upper side in the figure), for example, by combining a pair of semi-annular separators 1. It is formed in a funnel shape. The large diameter portion is on the screen (face) side of the cathode ray tube, and the small diameter portion is on the neck side. [0003] A saddle-type horizontal deflection coil (not shown) is mounted on the inner surface of the separator 1 and a saddle-type vertical deflection coil 3 is mounted on the outer surface thereof. Are electrically insulated and held. A core 4 made of ferrite or the like is mounted on the outer surface of the vertical deflection coil 3. The deflection yoke device configured as described above generally requires a circuit for correcting deflection characteristics, and a substrate 5 having such a circuit mounted thereon is attached to a side surface of the separator 1. [0004] A plurality of flanges (hereinafter, referred to as neck-side flanges) 1a are provided on the neck side of the separator 1, and a flange (hereinafter, referred to as face-side flange) 1b is provided on the face side. I have. A four-pole correction coil 7 called a pair of 4P coils is fitted on the neck side flange 1a. Further, a pocket-shaped storage section 8 for storing a magnetic field characteristic correcting component (for example, a magnet) for correcting magnetic field characteristics is provided on the outer peripheral portion of the face side flange 1b on the front side in the figure. And two locations on the back side in the figure, for a total of four locations. The storage unit 8 stores, for example, a plate-shaped magnet (not shown). These four storage sections 8 (magnets) are usually arranged so as to be line-symmetric with respect to the horizontal axis and the vertical axis of the screen. The magnet accommodated in the accommodating portion 8 is located near a tangent to the outer peripheral portion of the face side flange 1b, and locally cancels or changes the deflection magnetic field distribution generated by the horizontal deflection coil and the vertical deflection coil 3. This corrects horizontal cross-misconvergence and vertical cross-misconvergence occurring at four corners of the screen. Here, a detailed structure of the storage section 8 will be described. In FIG. 12, (A) is a partial perspective view showing the storage unit 8 without a magnet, and (B) is a partial perspective view showing the storage unit 8 with a magnet 9 mounted. FIGS. 13A to 13C show a state change when the magnet 9 is attached to the storage section 8.
It is sectional drawing a. In FIG. 12, the right direction is the upper side (neck side) of FIG. 11, and the left direction is the lower side (face side) of FIG. In FIG. 13, the right direction is the inside of the separator 1 and the left direction is the separator 1.
Outside. H in FIG. 13 is a deflection yoke device (screen)
Is the horizontal axis. As shown in FIG. 12, on the outer peripheral portion of the face side flange 1b, a first opening 8a having a rectangular shape is formed, which is longer than the first opening 8a and is connected to the first opening 8a. A second opening 8b is formed. As shown in FIG. 13, an outer peripheral portion of the face side flange 1b is connected to an end of the first opening 8a on the opposite side to the second opening 8b, and is connected to the inside of the separator 1. Is formed. This tongue piece 8c
Has flexibility and bends in the direction of the arrow shown in FIG. Further, at the end of the outer periphery of the face-side flange 1b opposite to the first opening 8a of the second opening 8b, an abutting portion 8d having a substantially L-shaped cross section which has entered the inside of the separator 1 is provided. Is formed. The second opening 8 in the outer peripheral portion of the face side flange 1b.
On both end faces in the tube axis direction of b, claws 8e protruding inside the separator 1 are formed. The first opening 8a, the second opening 8b, the tongue piece 8c, the abutment 8d, and the claw 8e form a pocket-shaped storage section 8. When the plate-shaped magnet 9 is mounted on the storage section 8 formed in this way, FIG.
As shown in (A), the magnet 9 is connected to the first opening 8a.
And insert it into the storage unit 8. When the magnet 9 is pressed against the tongue piece 8c as it is, the tongue piece 8c bends inward as shown in FIG. When the magnet 9 is pushed down to the contact portion 8d, as shown in FIG. 13C, the rear end surface of the magnet 9 substantially contacts the contact portion 8d, and the front end surface of the magnet 9 contacts the end surface of the claw 8e. Almost abut. In this way, the magnet 9 is held between the contact portion 8d and the claw 8e in the storage portion 8. In the deflection yoke device having the storage section 8 having such a configuration and storing the magnet 9 in the storage section 8, the magnet 9 is not moved by an external impact or the like. When a force in the direction indicated by the arrow is applied to the tongue 14, the tongue piece 8c bends to the inside of the separator 1, and as a result, as shown in FIG. Sometimes happened. As a result, there has been a problem that the position of the magnet 9 is displaced, so that the corrected convergence is displaced, and in some cases, the magnet 9 is dropped from the storage unit 8. SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and in a deflection yoke device provided with a storage portion for storing a magnetic field characteristic correcting component, the position of the magnetic field characteristic correcting component is inadvertently shifted. It is an object of the present invention to provide a deflection yoke device in which parts for correcting magnetic field characteristics do not accidentally fall out of a storage part. [0013] According to an aspect of the present invention is to solve the problems of the prior art described above, the housing portion of the two pairs of receiving the magnetic field characteristic correction part, the horizontal to the outer circumferential portion of the flange A deflection yoke device disposed symmetrically with respect to an axis and a vertical axis, wherein the tongue is a tongue extending from an outer peripheral surface of the flange to an inside of the deflection yoke device, and the magnetic field characteristic correcting component is stored in the storage unit. A flexible tongue that contacts the first surface of the magnetic field characteristic correcting component, which is the back surface when viewed from the outer peripheral surface of the flange when attached to the first surface, and a first tongue orthogonal to the first surface. A first abutting portion that abuts on an end surface, and a surface opposite to the first surface, and faces a back surface of an outer peripheral surface of the flange when the magnetic field characteristic correcting component is mounted on the storage portion; In the vicinity of the second surface that is the surface of the component for correcting magnetic field characteristics, A second abutting portion abutting on a second end surface opposite to the first end surface, and a third abutting portion provided on the tongue piece and abutting on the second end surface near the first surface. An abutting portion, and a fourth abutting portion formed of a back surface of an outer peripheral surface of the flange abutting on the second surface, wherein the third abutting portion and a surface orthogonal to the surface of the tongue piece; the rising angle of but forms the third contacting portion, with respect to the horizontal axis of the deflection yoke apparatus
A deflection yoke device, wherein the angle at which the second end face is located is substantially the same. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A deflection yoke device according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an overall configuration example of a deflection yoke device of the present invention, FIG. 2 is a partial perspective view showing a first embodiment of the deflection yoke device of the present invention, and FIG. FIG. 4 is a partial cross-sectional view for explaining the embodiment, and FIG.
FIG. 5 is a partial perspective view showing a second embodiment of the deflection yoke device according to the present invention, and FIG. 6 is a partial perspective view showing the second embodiment of the deflection yoke device according to the present invention. FIG. 7 is a partial sectional view showing a third embodiment of the deflection yoke device of the present invention, FIG. 8 is a partial sectional view for explaining a preferred embodiment of the deflection yoke device of the present invention, and FIG. Is a view for explaining a preferred embodiment of the deflection yoke device of the present invention, and FIG. 10 is a partial sectional view showing a modification of the deflection yoke device of the present invention. In FIG. 1, the same parts as those in FIG. 11 are denoted by the same reference numerals. In FIG. 1, this deflection yoke device has a large diameter portion on one side (lower side in the figure) and another side (upper side in the figure), for example, by a separator 1 in which a pair of semi-annular devices are combined. It is formed in a funnel shape with a small diameter portion. The large diameter portion is on the screen (face) side of the cathode ray tube, and the small diameter portion is on the neck side. The separator 1 is a resin part formed of a plastic resin. A saddle-type horizontal deflection coil (not shown) is mounted on the inner surface of the separator 1, and a saddle-type vertical deflection coil 3 is mounted on the outer surface thereof. Are electrically insulated and held. A core 4 made of ferrite or the like is mounted on the outer surface of the vertical deflection coil 3. The deflection yoke device configured as described above generally requires a circuit for correcting deflection characteristics, and a substrate 5 having such a circuit mounted thereon is attached to a side surface of the separator 1. A plurality of flanges (hereinafter, referred to as neck-side flanges) 1a are provided on the neck side of the separator 1, and a flange (hereinafter, referred to as face-side flange) 1b is provided on the face side. I have. A four-pole correction coil 7 called a pair of 4P coils is fitted on the neck side flange 1a. Further, a pocket-like storage portion 18 for storing a magnetic field characteristic correcting component (for example, a magnet) for correcting magnetic field characteristics is provided on the outer peripheral portion of the face side flange 1b at the front side in FIG. And two locations on the back side in the figure, for a total of four locations. The storage unit 18 stores, for example, a plate-like magnet (not shown).
Usually, these four storage portions 18 (magnets) are disposed so as to be line-symmetric with respect to the horizontal axis and the vertical axis of the screen. The storage section 18 shown in FIG. 1 corresponds to the structure of a first embodiment described later. The magnet accommodated in the accommodating portion 18 is located near a tangent to the outer periphery of the face side flange 1b, and locally cancels or changes the deflection magnetic field distribution generated by the horizontal deflection coil and the vertical deflection coil 3. This corrects horizontal cross-misconvergence and vertical cross-misconvergence occurring at four corners of the screen. Here, the detailed structure of the storage section 18 will be described in order from the first embodiment. <First Embodiment> FIG. 2 is a partial perspective view showing a state immediately before the magnet 9 is mounted on the storage section 18. FIG. FIG.
FIGS. 3A and 3B are cross-sectional views taken along a line a-a of FIG. 2, showing a state change when the magnet 9 is mounted on the storage unit 18. In FIG. 2, the right direction is the upper side (neck side) of FIG.
The left direction is the lower side (face side) in FIG. In FIG. 3, the right direction is inside the separator 1 and the left direction is outside the separator 1. H in FIG. 3 is a horizontal axis of the deflection yoke device (screen). As shown in FIG. 2, the face side flange 1
A first opening 18a having a rectangular shape and a second opening 18b elongated from the first opening 18a and connected to the first opening 18a are formed in the outer peripheral portion of b. As shown in FIG. 3, the outer periphery of the face side flange 1b is connected to the end of the first opening 18a on the side opposite to the second opening 18b, and Tongue piece 18c is formed. The tongue piece 18c is flexible and bends in the direction of the arrow shown in FIG. At the end of the outer periphery of the face side flange 1b opposite to the first opening 18a of the second opening 18b, an abutting portion 18d having a substantially L-shaped cross section which enters the inside of the separator 1 is formed. Have been. Also,
Claws 18e protruding inside the separator 1 are formed on both end surfaces in the tube axis direction of the second opening 18b in the outer peripheral portion of the face side flange 1b. Further, the tongue piece 18c has a protruding portion 18f protruding outside the separator 1 at a position substantially opposed to the claw 18e. In the first embodiment configured as described above,
First opening 18a, second opening 18b, tongue piece 18
c, the contact portion 18d, the claw 18e, and the protruding portion 18f form a pocket-shaped storage portion 18. When attaching the plate-shaped magnet 9 to the storage section 18 thus formed,
As shown in FIG. 2, the magnet 9 is connected to the first opening 18a.
And inserted into the storage unit 18. Then, when the magnet 9 is pressed against the tongue piece 8c as it is, the tongue piece 18c bends inward as shown in FIG. Apply the magnet 9 to the contact part 18
3D, the rear end surface of the magnet 9 substantially abuts against the contact portion 18d, and the front end surface of the magnet 9 substantially contacts the end surfaces of the claw 18e and the protruding portion 18f, as shown in FIG. Abut In this way, the magnet 9 is held between the contact portion 18d and the claw 18e and the protrusion 18f in the storage portion 18. If the contact portion 18d that contacts the end face on the back side of the magnet 9 is referred to as a first contact portion, the claw 18e is located near the surface of the magnet 9 in the outer direction of the separator 1.
The second contact portion is in contact with the front end surface of the magnet 9, and the protruding portion 18 f is in contact with the front end surface of the magnet 9 near the inner surface of the magnet 9 in the separator 1. It turns out that it is a contact part of. In the deflection yoke device according to the first embodiment, a force indicated by an arrow in FIG. 4 is applied to the magnet 9 by an external impact or the like, so that the tongue piece 18c is bent inside the separator 1. However, since the protruding portion 18f locks the front end surface of the magnet 9, the magnet 9 does not come off between the contact portion 18d, the claw 18e, and the protruding portion 18f. Therefore, the position of the magnet 9 does not shift due to the locking of the end surface on the front side of the magnet 9 by the claw 18e, and the corrected convergence does not shift, and the magnet 9 does not drop out of the storage unit 18. . <Second Embodiment> In the first embodiment described above, the tongue piece 18c, which is the inner part of the separator 1 in the storage section 18, has flexibility. There is also a storage part 18 in which the inner part is not flexible and the outer part of the storage part 18 outside the separator 1 is flexible. The second embodiment is a configuration example in such a case. FIG. 5 is a partial perspective view showing a state where the magnet 9 is mounted on the storage section 18. As shown in FIG. FIG. 6 (A), (B)
FIG. 6 is a sectional view taken along a line a-a in FIG. 5, showing a state change when the magnet 9 is mounted on the storage unit 18. As shown in FIGS. 5 and 6, a notch 18g for accommodating the magnet 9 is formed on the outer peripheral portion of the face side flange 1b. A tongue piece 18h is formed on the outer peripheral portion of the face side flange 1b so as to extend from an end of the cutout 18g opposite to the insertion side of the magnet 9 to an intermediate portion of the cutout 18g. The tongue piece 18h is flexible and bends in the direction of the arrow shown in FIG. Further, a rear end of the cut portion 18g is a contact portion 18i with which a rear end surface of the magnet 9 is substantially in contact. At the tip of the tongue piece 18h, a claw 18j projecting inside the separator 1 is formed. At a position substantially opposite to the claw 18j on the notch 18g,
A projecting portion 18k projecting outside the separator 1 is formed. In the second embodiment configured as described above,
Notch portion 18g, tongue piece 18h, contact portion 18i, nail 18
j, the protruding portion 18k forms a pocket-shaped storage portion 18. When the plate-like magnet 9 is mounted on the storage portion 18 formed as described above, as shown in FIG.
The magnet 9 is inserted into the notch 18g. At this time, the tongue piece 18h bends to the outside of the separator 1. When the magnet 9 is pushed down to the contact portion 18i, as shown in FIG. 6B, the rear end surface of the magnet 9 substantially contacts the contact portion 18i, and the front end surface of the magnet 9 is claw 1d.
8j and the end faces of the protruding portions 18k. In this manner, the magnet 9 is moved to the contact portion 18i in the storage portion 18.
And the claw 18j and the protrusion 18k. If the contact portion 18i that comes into contact with the end face on the back side of the magnet 9 is referred to as a first contact portion, the projecting portion 18k
In the vicinity of the inner surface of the separator 1 in the magnet 9, the second contact portion is in contact with the front end surface of the magnet 9. The claw 18 j is provided in the vicinity of the outer surface of the separator 1 in the magnet 9. It can be seen that the third contact portion is in contact with the front end surface of the magnet 9. In the deflection yoke device according to the second embodiment, even if a force is applied to the magnet 9 in the outward direction of the separator 1 by an external impact or the like, the tongue piece 18h bends to the outside of the separator 1 even if it protrudes. Since 18k locks the front end face of the magnet 9, the magnet 9 does not come off from between the contact portion 18i, the claw 18j, and the protruding portion 18k. Accordingly, the position of the magnet 9 does not shift due to the locking of the front end surface of the magnet 9 by the claw 18j, and the corrected convergence does not shift, and the magnet 9 does not drop out of the storage unit 18. . <Third Embodiment> In the first embodiment described above, the tongue piece 18c, which is the inner part of the separator 1 in the storage portion 18, has flexibility. The tongue piece 18h, which is the outer part of the separator 1 in the storage part 18, has a flexible configuration, but both the inner part and the outer part of the separator 1 in the storage part 18 have flexibility. The storage section 18 may be used. The third embodiment is a configuration example in such a case. That is, the third embodiment has a configuration in which the first embodiment and the second embodiment are combined. FIG. 7 is a partial sectional view showing a state in which the magnet 9 is mounted on the storage section 18. In this FIG.
Parts having the same functions as those in FIGS. 2 to 6 are denoted by the same reference numerals. As shown in FIG.
On the outer peripheral portion of b, a tongue piece 18c having flexibility in the direction of the arrow penetrating inside the separator 1 and a contact portion 18d having a substantially L-shaped cross section entering the inside of the separator 1 are formed. . A tongue piece 18h having flexibility in the direction of the arrow extending from the contact portion 18d to the middle of the tongue piece 18c is formed on the outer peripheral portion of the face side flange 1b. At the tip of the tongue piece 18h, a claw 18j projecting inside the separator 1 is formed. On the tongue piece 18c, a protruding portion 18f protruding outside the separator 1 is formed at a position substantially opposed to the claw 18j. In the third embodiment configured as described above,
Tongue piece 18c, abutment part 18d, projecting part 18f, tongue piece 18
h, claws 18j form a pocket-shaped storage section 18. When the plate-shaped magnet 9 is mounted on the storage portion 18 thus formed, both the tongue piece 18c and the tongue piece 18h bend inside and outside the separator 1, and the magnet 9
Is held between the contact portion 18d in the storage portion 18, the claw 18j, and the protruding portion 18f. If the contact portion 18d that contacts the end face on the back side of the magnet 9 is referred to as a first contact portion, the claw 18j is located near the surface of the magnet 9 in the outward direction of the separator 1.
The second contact portion is in contact with the front end surface of the magnet 9, and the protruding portion 18 f is in contact with the front end surface of the magnet 9 near the inner surface of the magnet 9 in the separator 1. It turns out that it is a contact part of. In the deflection yoke device according to the third embodiment, even if a force is applied to the magnet 9 due to an external impact or the like, the tongue piece 18c or 18h bends inside or outside the separator 1, the magnet 9 However, it does not come off between the contact portion 18d, the claw 18j, and the protruding portion 18f. Therefore, the corrected convergence does not shift, and the magnet 9 does not fall out of the storage unit 18. By the way, in the first to third embodiments described above, the claws and the protrusions formed on the flexible portions
That is, the protrusion 18f formed on the tongue piece 18c and the tongue piece 18h
The claw 18j formed on the contact surface of the magnet 9
It is most preferable that the tongues 18c and 18h stand almost perpendicularly to the surfaces of the tongues 18c and 18h from the viewpoint of the locking effect of the magnet 9. This is because if the surfaces of the protruding portions 18f and the claws 18j on the contact side of the magnet 9 stand up perpendicularly to the surfaces of the tongue pieces 18c and 18h, all of the contact side surfaces are on the end surface of the magnet 9. This is because they come into contact. However, this is the most effective in terms of the locking effect of the magnet 9, but the manufacturing cost of the separator 1 increases, and the cost of the deflection yoke device increases, for the following reasons. Would. This will be described with reference to FIG. Although the protrusion 18f is described here, the same applies to the claw 18j. FIG. 8 is a sectional view partially showing the storage section 18 according to the configuration of the first embodiment described above. As shown in FIG. 8, the direction in which the mold is removed when the separator 1 is injection-molded is defined as the left direction in the figure. Projection 1 formed on tongue piece 18c
When the surface on the contact side of the magnet 9 at 8f rises perpendicularly to the surface of the tongue piece 18c, the protrusion 18
The black portion in f is an undercut portion. That is, since the die cannot be pulled out in the pulling-out direction at the protruding portion 18f, it is necessary to pull out the die by sliding the die in a sliding direction as shown in the drawing, for example. . When the injection molding using the slide mold is used, the cost is greatly increased as compared with the injection molding using the sequential punching mold, and the manufacturing cost of the separator 1 is increased. When a slide die is used, the molding cycle is lengthened by the operation of the slide piece, and the cost is increased. In addition, since the structure is complicated, maintenance is troublesome and costly. Therefore, it is desirable to form the separator 1 by injection molding using a mold having a sequential punching structure in terms of the manufacturing cost of the deflection yoke device. In order to realize this, the surface of the protruding portion 18f formed on the tongue piece 18c on the contact side of the magnet 9 is inclined, not perpendicularly, to the surface of the tongue piece 18c, and rises up. The contact surface may be at an angle parallel to or less than the direction in which the mold is drawn. The rising angle of the protruding portion 18f may be set as follows in relation to the mounting position of the magnet 9. 9A is a partial cross-sectional view of the magnet 9 and the tongue piece 18c, and FIG.
FIG. 3 is a diagram showing a mounting position of a magnet 9 with respect to FIG.
In FIG. 9B, H is the horizontal axis of the deflection yoke device (screen), and V is the vertical axis. As shown in FIG. 9A, the angle formed between the surface of the protrusion 18f on the contact side of the magnet 9 and the end surface of the magnet 9 on the protrusion 18f side is θ.
Set to 1. Also, as shown in FIG. 9B, the end face of the magnet 9 on the side of the protruding portion 18f is θ2 away from the horizontal axis H.
It is assumed that it is located at an angle. When the angle θ1 shown in FIG. 9A is equal to the angle θ2 shown in FIG. 9B, no undercut occurs at the projecting portion 18f and the projecting portion 1
The surface on the contact side of the magnet 9 in 8f can be made to rise to the maximum with respect to the surface of the tongue piece 18c. The surface of the protruding portion 18f on the contact side of the magnet 9 is not perpendicular to the surface of the tongue piece 18c, but is shown in FIG.
Even when the magnet 9 rises up as described above, it has a sufficient locking effect of the magnet 9 by the protrusion 18f described with reference to FIG. Therefore, when both the manufacturing cost of the separator 1 (and, consequently, the deflection yoke device) and the locking effect of the magnet 9 are taken into consideration, it is understood that the most preferable embodiment is the case where the angle θ1 = the angle θ2. Therefore, the rising angle θ1 of the protruding portion 18f, which is the contact portion of the magnet 9 on the tongue piece 18c side, may be set to an optimum angle according to the mounting position of the magnet 9. The shapes of the claws and projections formed on the flexible portion, that is, the projections 18f formed on the tongue piece 18c and the claws 18j formed on the tongue piece 18h are the same as those of the above-described first to the first.
The present invention is not limited to the third embodiment. Here, a modified example of the above-described first embodiment will be described as a representative. <Modification> As shown in FIG.
c is the first thick portion 18c1 on the base side, and the first thick portion 1
The second thick portion 18c2 on the tip side, which is thinner than 8c1
The stepped portion 18c3 formed by the first thick portion 18c1 and the second thick portion 18c2 may have an effect of locking the magnet 9. The operation and effect of the step 18c3 are not different from those of the projection 18f, and the step 18c3 acts as a contact portion that comes into contact with the front end face of the magnet 9. At this time, it is the most preferable embodiment that the rising angle of the stepped portion 18c3 with respect to the surface of the tongue piece 18c is the same as the angle θ2 of the end surface of the magnet 9, as described above. In the embodiment described above, the deflection yoke device for accommodating the magnet 9 in the pocket-like accommodating portion 18 has been described. However, the structure of the accommodating portion 18 according to the present invention is not limited to the magnet 9 but includes a magnetic piece or the like. It can also be used as a structure for accommodating other magnetic field characteristic correction parts. Also,
The position of the storage portion 18 and the magnetic field characteristic correction component stored therein is not limited to the outer peripheral portion of the face side flange 1b, and a deflection portion having a configuration corresponding to the storage portion 18 in a resin portion other than the separator 1 is provided. The structure of the present invention can be used for a yoke device. FIG. 1 shows a so-called saddle-saddle type deflection yoke device.
It goes without saying that a saddle toroidal type deflection yoke device may be used. As described above in detail, according to the deflection yoke device of the present invention, the position of the magnetic field characteristic compensating component is inadvertently shifted or the magnetic field characteristic compensating component is placed in the storage section. More careless dropping can be prevented very effectively. Therefore, there is no need for extra work of re-storing the magnetic field characteristic correcting component in the storage portion.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an overall configuration example of the present invention. FIG. 2 is a partial perspective view showing the first embodiment of the present invention. FIG. 3 is a partial cross-sectional view for explaining a first embodiment of the present invention. FIG. 4 is a partial cross-sectional view for explaining effects of the first embodiment of the present invention. FIG. 5 is a partial perspective view showing a second embodiment of the present invention. FIG. 6 is a partial cross-sectional view for explaining a second embodiment of the present invention. FIG. 7 is a partial sectional view showing a third embodiment of the present invention. FIG. 8 is a partial cross-sectional view illustrating a preferred embodiment of the present invention. FIG. 9 is a diagram illustrating a preferred embodiment of the present invention. FIG. 10 is a partial sectional view showing a modification of the present invention. FIG. 11 is a perspective view showing the entire configuration of a conventional example. FIG. 12 is a partial perspective view showing a conventional example. FIG. 13 is a partial cross-sectional view for explaining a conventional example. FIG. 14 is a partial cross-sectional view for explaining a problem of the conventional example. FIG. 15 is a partial sectional view for explaining a problem of the conventional example. [Description of Signs] 1 Separator (resin part) 1a Neck-side flange 1b Face-side flange 3 Vertical deflection coil 4 Core 5 Substrate 7 Correction coil 9 Magnet (part for correcting magnetic field characteristics) 18 Storage portions 18a, 18b Openings 18c, 18h Tongue piece 18c1 First thick part 18c2 Second thick part 18c3 Step part (contact part) 18d, 18i Contact part 18e, 18j Claw (contact part) 18f, 18k Projection part (contact part) 18g Cut part

Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01J 29/76

Claims (1)

(57) [Claim 1] A deflection yoke in which two pairs of storage sections for storing magnetic field characteristic correction components are arranged on the outer periphery of a flange so as to be line-symmetric with respect to a horizontal axis and a vertical axis. In the apparatus, the storage portion is a tongue extending from the outer peripheral surface of the flange to the inside of the deflection yoke device, and the outer peripheral surface of the flange when the magnetic field characteristic correcting component is mounted on the storage portion. A flexible tongue contacting a first surface of the magnetic field characteristic correcting component, which is a back surface viewed from above, and a first contact portion abutting a first end surface orthogonal to the first surface. A surface opposite to the first surface, the front surface of the magnetic field characteristic correcting component facing the back surface of the outer peripheral surface of the flange when the magnetic field characteristic correcting component is mounted on the storage portion; Abuts on a second end face near the second face and opposite to the first end face; A second abutting portion, a third abutting portion provided on the tongue piece and abutting on the second end surface near the first surface, and an outer periphery of the flange abutting on the second surface And a fourth contact portion comprising a back surface of the surface, wherein the deflection yoke determines a rising angle of the third contact portion formed by the third contact portion and a surface orthogonal to the surface of the tongue piece. A deflection yoke device , wherein an angle of the second end surface with respect to a horizontal axis of the device is substantially the same.