JP3042750B2 - Quick connection type cathode ray tube socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quick connection type cathode ray tube socket, and more particularly to a quick connection type cathode ray tube socket having a confirmation window for confirming a state of insertion of a focus lead wire into a high-pressure discharge gap chamber.

[0002]

2. Description of the Related Art A quick connection type cathode ray tube socket is a type of cathode ray tube which can be connected by simply inserting it into a lead wire insertion hole without soldering when connecting a focus lead wire to a high voltage electrode. It is a socket. Referring to FIGS. 6 and 7, a body 11 made of an insulating material is composed of a main body 12 into which a terminal pin of a cathode ray tube is inserted and connected, and a high-pressure discharge space chamber 13 integrally formed on a side portion thereof. You. The main body 12 has a thick and substantially disk-like shape, and has a through-hole 15 having a circular cross section centering on a center line 14 thereof. Body 12
A plurality of terminal pin insertion holes 16 for inserting terminal pins of a cathode ray tube are formed at equal intervals on a circle centered on the center line 14 of FIG. The terminal pin insertion holes 16 are formed with contact receiving portions 17 extending to the rear surface of the body 11 in communication therewith. These contact housings 17
Accommodates a contact 18. Referring to FIG. 8 as well, the main body 12 is provided with a ground conductor 19 curved in an arc shape along the outer peripheral surface thereof. Then, a discharge gap chamber hole 21 is formed between each of the contacts 18 and the ground conductor 19, and a discharge gap is formed between the ground conductor 19 and the contact 18 in the discharge gap chamber hole 21.

Referring to FIGS. 6, 9 and 10, a high-pressure discharge space chamber 13 accommodates a high-voltage electrode 31 and a high-pressure discharge electrode 32 constituting a high-pressure discharge space. A high-voltage contact 1 to which a high-voltage terminal pin of a cathode ray tube is connected adjacent to the high-pressure discharge space chamber 13 of the main body 12.
8h are provided. The high voltage contact 18 h and the high voltage electrode 31 are connected to each other via a connection conductor 33.
The high-voltage electrode 31 has a hemispherical shape, and a rectangular flange-shaped holding plate 35 is integrally formed around the high-voltage electrode 31. The holding plate 35 is fitted in a slit 71 formed in a high-voltage electrode holding portion 70 formed inside the high-pressure discharge gap chamber 13, and holds the high-voltage electrode 31 in the high-pressure discharge gap chamber 13. Similarly, the high-voltage discharge electrode 32 has a hemispherical shape, and a rectangular flange-shaped holding plate 36 is formed integrally therearound. The holding plate 36 is also fitted in a slit 73 formed in the high-pressure discharge electrode holding portion 72 formed in the high-pressure discharge space 13 and fitted in the slit. Holding. The high-voltage electrode 31 and the high-voltage discharge electrode 32 face each other to form a high-pressure discharge gap.

In the quick-connection type cathode ray tube socket as described above, the focus terminal 37 to which the high-voltage focus lead wire 47 is connected is closely opposed to the holding plate 35 of the high-voltage electrode 31 and is integrally formed with the holding plate 35. Is formed. In this example, the focus terminal 37 is disposed close to and opposed to a front portion on one side of the back surface of the holding plate 35. That is, the connecting portion 38 is formed such that one end thereof is integrally and perpendicularly extended from the front portion of one side edge of the holding plate 35 to the back side, and the other end of the connecting portion 38 is opposed to the back surface of the holding plate 35 in parallel. The folded portion is the receiving plate 39, the upper end of the receiving plate 39 extends forward and downward, and the downwardly extended portion is the focus terminal 37.

[0005] Referring to FIGS. 9 and 11, the high-pressure discharge gap chamber 13 includes a housing main body 42 integrally formed with the main body 12 and a cover 43 for covering a front opening of the housing main body 42. As described above, the high-voltage electrode holding portion 70 that holds the holding plate 35 of the high-voltage electrode 31 is formed integrally with the housing main body 42. Are formed integrally with each other. A terminal 46 for solder connection is also provided at one end of the connection conductor 33 as shown in FIG.

Referring to FIGS. 9 and 12, reference numeral 48 denotes a lead wire insertion hole formed to face the focus terminal 37, and a high-voltage focus lead wire 47, which is an external lead wire, is inserted into the insertion hole 48. , And the leading end of the core wire is located between the holding plate 35 and the focus terminal 37. The cylindrical projection 49 surrounding the lead wire insertion hole 48 is formed with a cover 43.
Are formed integrally. The cylindrical projection 49 is used to insert the lead 47 when the high-voltage focus lead 47 is inserted.
And the insulating coating of the lead wire is fitted to prevent vibration. A confirmation window 50 that opens upward in a slit shape on the peripheral surface of the cylindrical projection 49.
Are formed. A hinge 54 is provided on the cover 43.
The rotation plate 53 is provided via the. This rotating plate 53
Is formed with a holding piece 51 and a U-shaped piece 55. The pressing piece 51 is erected at right angles to the turning plate 53, and one end of the turning plate 53 is integrally and rotatably connected to one front edge of the cover 43, and the connecting portion is a hinge 54. 52
Is a notch, which is formed near the cylindrical projection 49 of the cover 43 and near the position opposite to the focus terminal 37 of the holding plate 35. In a state where the high-voltage focus lead wire 47 is inserted between the holding plate 35 and the focus terminal 37 through the lead wire insertion hole 48, the turning plate 53 is turned so as to be in contact with the front surface of the cover 43 and face downward. , The pressing piece 51 elastically presses the receiving plate 39 toward the holding plate 35 through the cut groove 52, and the pinching of the high-voltage lead wire 47 by the focus terminal 37 and the holding plate 35 is mechanically ensured. And make good electrical contact. At this time, the U-shaped piece 55 integrated with the turning plate 53 is connected to the claw 56 on the outer surface of the cover 43, whereby the connection between the cover 43 and the turning plate 53 is maintained,
As a result, the electrical and mechanical connection of the high voltage lead wire 47 by the focus terminal 37 and the holding plate 35 is also maintained.

Here, when inserting the high-voltage focus lead wire 47 between the holding plate 35 and the focus terminal 37 through the lead wire insertion hole 48, it is necessary to confirm the insertion state. The confirmation window 50 described above is helpful. That is, the state of insertion of the high-voltage focus lead wire 47 into the cylindrical projection 49 can be confirmed through the confirmation window 50.

[0008]

In the conventional example of the quick connection type cathode ray tube socket as described above, the confirmation window 50 which is opened upward in a slit shape on the peripheral surface of the cylindrical projection 49 is formed. High voltage focus lead wire 47
Of the high-voltage focus lead wire 4 with respect to the focus terminal 37 can be confirmed.
7 can be reliably performed.

However, the confirmation window 50 is formed on the peripheral surface of the cylindrical projection 49.
As a result, the connection between the focus terminal 37 and the high-voltage focus lead wire 47 is located very close to the outside of the cathode ray tube socket through the confirmation window 50. Although the slit forming the confirmation window 50 has a narrow width, a high voltage is applied to the above-described connection portion near the window when the cathode ray tube socket is actually used. It is concentrated and adsorbed, and a creeping discharge path is formed through this. Usually, dust contains sodium, potassium, and other substances that absorb moisture, and the electrical resistance of the creeping discharge path is reduced due to this, so that a discharge accident is likely to occur.

[0013] As shown in FIG. 13, the confirmation window 50 is formed on the peripheral surface of the cylindrical projection 49 at a position where the pivoting plate 53 is pivotally fitted, and is set up on the pivoting plate 53. The same applies to the case where the slit forming the confirmation window 50 is closed from the side by the wall 57. That is, the confirmation window 50
Since the upper end of the slit forming the slit remains open 50 'as before, there is no change in that dust is concentrated and adsorbed into the slit via the open end 50'.

The present invention provides a quick connection type cathode ray tube socket which solves the above-mentioned problems.

[0012]

Means for Solving the Problems A high-pressure discharge space chamber 13 for accommodating a high-pressure discharge space is provided, and an integrated focus terminal which is inclined and closely opposed to the holding plate 35 of the high-voltage side electrode 31 of the high-pressure discharge space. 37 is provided in the high-pressure discharge gap chamber 13, and has a cylindrical projection provided with a lead wire insertion hole 48 for guiding a focus lead wire 47 inserted from outside between the focus terminal 37 and the holding plate 35. A portion 49 is provided on the cover 43 of the high-pressure discharge gap chamber 13, and a cut groove 52 is formed in the cover 43, and the cover 43 enters the high-pressure discharge gap chamber 13 through the cut groove 52 to move the focus terminal 37. Press the focus lead wire 47 to the focus terminal 37 and the holding plate 3
In the quick connection type cathode ray tube socket provided with a lock member 80 having a core wire pressing portion 81 to be clamped between the cylindrical member 49 and the cylindrical projection 49, the cylindrical protrusion 49 is provided on the side of the peripheral surface where the lock member 80 is located. A quick-setting type cathode ray tube socket is provided in which a confirmation window 50 which is not opened at the upper end of the cylindrical projection is formed at a portion corresponding to a part. Then, in the quick connection type cathode ray tube socket, the confirmation window 50 is provided.
The lower end of this is a quick-setting type cathode ray tube socket which is formed to extend just before the tapered portion 58. Further, in the above-described quick connection type cathode ray tube socket, the cylindrical projection 49
A quick-connecting cathode ray tube socket is formed by cutting off the lower portion of the confirmation window 50 at the outer peripheral portion corresponding to the tapered portion 58 formed thereunder to form the confirmation groove 59.

Furthermore, a high-pressure discharge space chamber 13 for accommodating the high-pressure discharge space is provided, and the high-pressure side electrode 3 of the high-pressure discharge space is provided.
An integrated focus terminal 37 is provided in the high-pressure discharge gap chamber 13 so as to be inclined and close to the first holding plate 35, and a focus lead wire 47 inserted from the outside between the focus terminal 37 and the holding plate 35 is provided. The cover 43 of the high-pressure discharge gap chamber 13 is provided with a cylindrical projection 49 in which a lead wire insertion hole 48 having a tapered portion 58 for inserting and guiding is formed and an insertion portion 84 which is opened upward is formed. A cut groove 52 is formed in the cover 43 in the vicinity of the insertion portion 84 of the cylindrical projection 49, enters the high-pressure discharge gap chamber 13 through the cut groove 52, presses the focus terminal 37, and presses the focus terminal 37. The wire 47 is inserted and fitted into the core wire pressing portion 81 and the insertion portion 84 for holding the focus lead 37 between the focus terminal 37 and the holding plate 35, and the insulating coating of the focus lead wire 47 is pressed against the inner wall of the cylindrical projection 49 and held. In the quick connection type cathode ray tube socket including the lock member 80 having the covering press rib 82 and the lock member fitting frame 90, the cylindrical projection 49 is formed on the side of the peripheral surface where the lock member 80 is located. A quick-setting type cathode ray tube socket in which a confirmation window 50 which is not opened at the upper end of the cylindrical projection is formed at a position corresponding to a part of the core wire holding portion 81 is constituted. In this quick-connecting cathode ray tube socket, a lower end of the confirmation window 50 is formed to extend to just before the tapered portion 58 to constitute a quick-connecting cathode ray tube socket. In these quick connection type cathode ray tube sockets, the cylindrical projection 49 is an outer peripheral portion corresponding to the tapered portion 58 formed at the lower portion thereof, and a portion below the confirmation window 50 is cut off to form a confirmation groove 59. A quick-setting type cathode ray tube socket was constructed. Further, in the above-mentioned quick-connection type cathode ray tube socket, the lock member fitting frame body 90 also constitutes a quick-connection type cathode ray tube socket formed so as to surround the cylindrical projection 49.

[0014]

An embodiment of the present invention will be described with reference to the drawings.
The same reference numerals are used for members common to the conventional example. A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 (a) is a top view of a quick connection type cathode ray tube socket of the present invention, and FIG.
It is a figure which shows the A-D cross section in (a). FIG. 2 is a perspective view.

Reference numeral 50 denotes a confirmation window according to the present invention, which is formed by a slit formed on the peripheral surface of the cylindrical projection 49 on the side where the lock member 80 is located. Unlike the conventional confirmation window, the slit has a wall above it and is not open to the upper end of the cylindrical projection 49. The lower end of the check window 50 is extended sufficiently long before the tapered portion 58. In this embodiment, as shown in FIG. 2, the outer peripheral portion corresponding to the tapered portion 58 formed at the lower portion of the cylindrical projection 49 and the lower portion of the confirmation window 50 is cut off to form a U-shaped cross section. The check groove 59 is shaped like a letter. That is, even if the U-shaped confirmation groove 59 is formed, since the tapered portion 58 is present over the entire circumference, there is no provision for guiding the focus lead wire 47. The confirmation window 50 is provided with a lock member 80.
Is closed from the side by the cover pressing rib 82 of the lock member 80 when it is fitted to the cover 43 of the discharge gap chamber 13 for high pressure.

The confirmation window 50 in the first embodiment as described above allows the focus lead wire 47 to be inserted into the lead wire insertion hole 48.
When inserted through the window, since the insulating coating of the focus lead wire was recognized from outside the socket through this window, it was almost determined that the core wire portion would have come into contact between the focus terminal 37 and the holding plate 35. You can check. Since the lower end of the confirmation window 50 is extended sufficiently long to reach just before the tapered portion 58, confirmation can be facilitated. In addition, through the confirmation groove 59 formed below the confirmation window 50, although slightly, the vicinity of the bent portion above the focus terminal 37 can be visually recognized, so that the core portion of the focus lead wire 47 is connected to the focus terminal 37. It is possible to further confirm the insertion contact by recognizing the minute deformation of the focus terminal caused by the insertion contact with the holding plate 35. Further, the confirmation window 50 of the present invention is different from the conventional confirmation window in that it is formed of an opening and has a wall at an upper portion and is not opened at the upper end of the cylindrical projection 49. Therefore, dust is not concentrated and adsorbed in the slit.

Next, a second embodiment will be described with reference to FIGS. 3, 4 and 5. FIG. 3 is a perspective view of a quick connection type cathode ray tube socket of the present invention. However, this figure 3
Does not clearly show the confirmation window 50. 4 is a view showing a cross section taken along line 4-4 in FIG. 3, and FIG. 5 is a view showing FIG. 3 as viewed from above. Numeral 48 denotes a lead wire insertion hole formed so as to face the focus terminal 37, and the core portion of the high-voltage focus lead wire 47, which is an external lead wire, is inserted through the insertion hole 48.
2, and the leading end of the core wire is located between the holding plate 35 and the focus terminal 37. A good cylindrical projection 49 surrounding the periphery of the lead wire insertion hole 48 is formed integrally with the cover 43. The cylindrical projection 49 serves as a guide for the focus lead wire 47 when the high-voltage focus lead wire 47 is inserted, and also serves to mechanically hold the insulating coating of the lead wire.

Reference numeral 50 denotes a confirmation window according to the present invention, which is formed by a slit formed at a position corresponding to a part of the core wire pressing portion 81 on the side of the peripheral surface of the cylindrical projection 49 where the lock member 80 is located. Unlike the conventional confirmation window, the slit has a wall above the slit and is not released to the upper end of the cylindrical projection 49. The lower end of the check window 50 is extended sufficiently long before the tapered portion 58. In this embodiment, as shown in FIG. 2, the outer peripheral portion corresponding to the tapered portion 58 formed at the lower portion of the cylindrical projection 49 and the lower part of the confirmation window 50 is cut off to have a U-shaped cross section. Confirmation groove 59. In this case, even if the U-shaped confirmation groove 59 is formed, since the tapered portion 58 is present over the entire circumference, there is no provision for guiding the focus lead wire 47. And the confirmation window 50 is the lock member 8
When 0 is fitted to the cover 43 of the high-pressure discharge gap chamber 13, it is closed from the side by the cover pressing rib 82 of the lock member 80.

The cover 43 is provided with a lock member 80 via a hinge 54. The lock member 80 has a core wire pressing portion 81 extending downward and protruding downward from the lower portion thereof, and a coating pressing rib 82 protrudingly formed on the side of the cylindrical protruding portion 49 at an intermediate portion thereof. A lock member engaging portion 83 is formed on a side different from the side on which the covering press rib 82 is formed so as to project in a direction opposite to the covering press rib 82. Reference numeral 52 denotes a notch, which comes close to the cylindrical projection 49 of the cover 43 and
5 is formed near the position opposite to the focus terminal 37. Reference numeral 90 denotes a lock member fitting frame having a substantially U-shaped cross section in the horizontal direction. The fitting frame 90 is formed integrally with the cover 43 so as to surround the cylindrical projection 49. 91
Is a fitting hole into which the lock member engaging portion 83 is engaged.
Reference numeral 92 denotes a stop step for stopping the downward movement of the lock member 80. The lock member 80 on the upper side of the cylindrical protrusion 49 is opened to form an insertion portion 84 into which the cover pressing rib 82 is inserted and fitted. The fitting between the cover pressing rib 82 and the insertion portion 84 is configured to have a shape in which no gap is formed between the two when the two are fitted to each other. Lock member fitting frame 90
The above-mentioned hinge 54 is attached to the lower end part which is open in a U-shape. The opening of the above-described confirmation window 50 is formed in the cylindrical projection 49 so that the lock member 80 is closed by the core wire pressing portion 81 of the lock member 80 when the lock member 80 is fitted into the cover 43 of the high-pressure discharge gap chamber 13. It is formed at a position corresponding to the core wire holding portion 81 on the peripheral surface.

Also in this second embodiment, the confirmation window 50
When the focus lead wire 47 is inserted through the lead wire insertion hole 48, the core wire portion of the focus terminal 37 and the holding plate 35 It can be almost confirmed that there was an insertion contact between them. Since the lower end of the confirmation window 50 is extended sufficiently long to reach just before the tapered portion 58, confirmation can be facilitated. In addition, through the confirmation groove 59 formed below the confirmation window 50, although slightly, the vicinity of the bent portion above the focus terminal 37 can be visually recognized, so that the core portion of the focus lead wire 47 is connected to the focus terminal 37. Holding plate 35
By recognizing minute deformation of the focus terminal caused by the insertion contact between the focus terminal and the contact terminal, it is possible to further confirm the insertion contact state. Further, the confirmation window 50 of the present invention is different from the conventional confirmation window in that it is formed of an opening and has a wall at an upper portion and is not opened at the upper end of the cylindrical projection 49. Therefore, dust is not concentrated and adsorbed in the slit.

Here, in a state where the high-voltage focus lead wire 47 is inserted between the holding plate 35 and the focus terminal 37 through the lead wire insertion hole 48, the lock member 80
Is pivoted to contact the front surface of the cover 43 and press it downward, the core wire pressing portion 81 descends while pressing the receiving plate 39 slightly elastically toward the holding plate 35 through the cut groove 52. At the same time, the coating pressing rib 82 is in contact with the insulating coating portion of the high-voltage focus lead wire 47 and the cylindrical projection 4
The degree of the insertion fitting is gradually increased with respect to the insertion portion 84 of No. 9, and the insulating coating portion is firmly held between the inner walls of the cylindrical projection 49. That is, the high-voltage focus lead wire 47 has its core wire portion firmly sandwiched between the focus terminal 37 and the holding plate 35, and its insulating coating portion is in contact with the coating pressing rib 82 and the inner wall of the cylindrical projection 49. The high voltage focus lead wire 47 is thus firmly held between these two positions. in this case,
The core wire pressing portion 81 is a core wire pressing portion 81 on the peripheral surface of the cylindrical projection 49.
The confirmation window 50 pierced at a position corresponding to a part of is closed from the side.

In the final stage of the downward pressing operation of the lock member 80, the lock member 80 is stopped from proceeding downward by the stop step portion 92. At this time, the lock member engaging portion 83 is fitted into the fitting hole 91, As a result, the core portion of the high-voltage focus lead wire 47 is firmly sandwiched between the focus terminal 37 and the holding plate 35, and the insulating coating portion is formed between the coating pressing rib 82 and the inner wall of the cylindrical projection 49. The state of being firmly held between them is fixedly held. Then, the fitting between the cover pressing rib 82 and the insertion portion 84 is also performed without any gap therebetween. In addition, the closed state of the confirmation window 50 is similarly fixed and held.

As described above, the second embodiment of the present invention comprises:
By recognizing the insulating coating portion of the focus lead wire from outside the socket through the confirmation window 50, it is almost confirmed that the core wire portion would have been inserted into contact between the focus terminal 37 and the holding plate 35, and the confirmation groove was formed. Since the insertion contact state can be further confirmed by visually confirming the vicinity of the bent portion above the focus terminal 37 via 59, the high-voltage focus lead wire 47 is connected as described above under this confirmation. By clamping in two places,
The connection between the focus lead wire 47 and the holding plate 35 is almost perfect. Further, since dust is not concentrated and adsorbed in the confirmation window 50, the focus lead wire 4
The risk of lowering the electrical resistance of the creeping discharge path from the core wire of No. 7 to the circuit outside the socket has been reduced.

A second embodiment of the present invention relates to a fitting frame 90.
Is formed integrally with the cover 43 so as to surround the cylindrical projection 49. When the lock member 80 is fitted to this,
Since the fitting between the covering pressing rib 82 and the insertion portion 84 is configured so that there is no gap between them, the confirmation window 50 is almost completely socketed by the fitting frame body 90 and the lock member 80. Will be isolated from the outside world,
As a result, the creeping discharge path from the connection between the focus lead wire 47 and the holding plate 35 to the outside of the socket via the confirmation window 50 becomes large.

[0025]

As described above, when the focus lead wire 47 is inserted through the lead wire insertion hole 48, the confirmation window 50 in the first embodiment is insulated from the focus lead wire through this window. By recognizing the covering portion from the outside of the socket, it can be almost confirmed that the core wire portion would have been inserted and contacted between the focus terminal 37 and the holding plate 35.

The lower end of the confirmation window 50 is tapered 58
Since the film is stretched and formed long enough to reach the point just before, it can be easily confirmed. Further, through the confirmation groove 59 formed below the confirmation window 50, the vicinity of the bent portion above the focus terminal 37 can be visually recognized, though slightly.
Thereby, it is possible to recognize the minute deformation of the focus terminal caused by the insertion of the core portion of the focus lead wire 47 between the focus terminal 37 and the holding plate 35 and further confirm the insertion contact.

Further, the confirmation window 50 of the present invention differs from the confirmation window of the conventional example in that it has an opening and has a thick upper portion, and is not opened at the upper end of the cylindrical projection 49. Therefore, dust is not concentrated and adsorbed in the slit from above. The second embodiment of the present invention is different from the first embodiment in that the core wire portion is inserted between the focus terminal 37 and the holding plate 35 by recognizing the insulating coating portion of the focus lead wire from the outside of the socket through the confirmation window 50. It is possible to further confirm the insertion contact state by substantially confirming that the wax is present and by visually confirming the vicinity of the bent portion above the focus terminal 37 through the confirmation groove 59. By sandwiching the high-voltage focus lead wire 47 at two places as described above, the coupling between the focus lead wire 47 and the holding plate 35 becomes almost complete.

In addition, since the dust is not concentrated and adsorbed in the confirmation window 50, there is little possibility that the electric resistance of the creeping discharge path from the core portion of the focus lead wire 47 to the circuit outside the socket is reduced. It became something. Further, in the second embodiment of the present invention, the fitting frame 90 is formed integrally with the cover 43 so as to surround the cylindrical projection 49, and the lock member 80 is fitted into the fitting frame 90. Since the fitting between the cover pressing rib 82 and the insertion portion 84 is also performed without any gap therebetween, the confirmation window 50 is almost completely isolated from the outside of the socket by the fitting frame 90 and the lock member 80. Eventually, the creeping discharge path from the connection between the focus lead wire 47 and the holding plate 35 to the outside of the socket via the confirmation window 50 becomes large.

As described above, the reliability of the focus lead wire connection of the quick connection type cathode ray tube socket according to the present invention is large.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an embodiment.

FIG. 2 is a view of FIG. 1 as viewed from above.

FIG. 3 is a perspective view illustrating another embodiment.

FIG. 4 is a view showing a cross section taken along line 4-4 in FIG. 3;

FIG. 5 is a view showing FIG. 3 as viewed from above.

FIG. 6 is a top view of a conventional example of a quick connection type cathode ray tube socket.

FIG. 7 is a sectional view of the cathode ray tube socket shown in FIG. 6;

FIG. 8 is a perspective view of a ground conductor.

FIG. 9 is a sectional view taken along line AA of FIG. 7;

FIG. 10 is a perspective view of a contact and an electrode.

FIG. 11 is a perspective view of a holding plate.

FIG. 12 illustrates a conventional example of a confirmation window.

FIG. 13 is a diagram illustrating a conventional example of a confirmation window.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 13 High-pressure discharge space chamber 31 High-voltage side electrode 35 Holding plate 37 Focus terminal 43 Cover 47 Focus lead wire 48 Lead wire insertion hole 49 Cylindrical projection 50 Confirmation window 80 Lock member 81 Core wire pressing portion 82 Coating pressing rib 84 Insertion portion 90 Lock member fitting frame

Claims (7)

(57) [Claims] 1. A high-pressure discharge gap chamber for accommodating a high-pressure discharge gap, wherein an integrated focus terminal that is inclined and closely opposed to a holding plate of a high-voltage side electrode of the high-pressure discharge gap is provided in the high-pressure discharge gap chamber. A cylindrical projection in which a lead wire insertion hole for inserting and guiding a focus lead wire inserted from the outside between the focus terminal and the holding plate is provided in the cover of the high-pressure discharge gap chamber; A cut groove is formed in the cover, and a core wire holding portion that enters the high-pressure discharge gap chamber through the cut groove, presses the focus terminal, and clamps the focus lead wire between the focus terminal and the holding plate is provided. In the quick connection type cathode ray tube socket having a locking member having the cylindrical protrusion, the cylindrical protrusion is not released to the upper end of the cylindrical protrusion at a position corresponding to a part of the core wire holding portion on the side of the peripheral surface where the lock member is located. Fast binding type cathode ray tube socket, characterized in that but is intended to be drilled. 2. The quick-connecting cathode ray tube socket according to claim 1, wherein the lower end of the confirmation window is formed to extend to just before the tapered portion. 3. The quick-connect cathode ray tube socket according to claim 1, wherein the cylindrical projection is an outer peripheral portion corresponding to a tapered portion formed at a lower portion thereof, and the confirmation window is provided. A quick-setting cathode ray tube socket, characterized in that the lower part of the tube is cut off to form a check groove. 4. A high-pressure discharge gap chamber for accommodating a high-pressure discharge gap, and an integrated focus terminal which is inclined and closely opposed to a holding plate of the high-voltage side electrode of the high-pressure discharge gap is provided in the high-pressure discharge gap chamber. A cylindrical shape provided with a lead wire insertion hole having a tapered portion for inserting and guiding a focus lead wire inserted from the outside between the focus terminal and the holding plate, and an insertion portion to be released at an upper portion is formed; The protrusion is provided on the cover of the high-pressure discharge space chamber, and a cut groove is formed in the cover near the insertion portion of the cylindrical protrusion, and the cover enters the high-pressure discharge space chamber through the cut groove. The focus lead is pressed to hold the focus lead wire between the focus terminal and the holding plate.It is inserted and fitted into the core wire holding part and the insertion part, and the insulation coating of the focus lead wire is pressed against the inner wall of the cylindrical protrusion to hold it. Cover holding rib In the quick-connecting type cathode ray tube socket having a lock member and a lock member fitting frame, the cylindrical protrusion corresponds to a part of the core wire pressing portion on the side of the peripheral surface where the lock member is located. A quick-setting cathode ray tube socket, characterized in that a confirmation window which is not released is formed at the upper end of the cylindrical projection. 5. The quick-connecting cathode ray tube socket according to claim 4, wherein the lower end of the confirmation window is formed to extend to just before the tapered portion. 6. The quick connection type cathode ray tube socket according to claim 4, wherein the cylindrical projection is an outer peripheral portion corresponding to a tapered portion formed at a lower portion thereof, and the confirmation window is provided. A quick-setting cathode ray tube socket, characterized in that the lower part of the tube is cut off to form a check groove. 7. The quick-connect cathode ray tube socket according to claim 4, wherein the lock member fitting frame is formed so as to surround the cylindrical projection. A quick connection type cathode ray tube socket characterized by the above-mentioned.