KR100425960B1 - CRT and Front Mask Coupling Device for TV - Google Patents

Abstract

The present invention relates to a combination apparatus of a television CRT and a front mask. The technical gist of the present invention is that the front rib is provided with a fixed rib 30 having a high information core 34 formed at an inner center thereof and a spring mount 36 formed at an outer side thereof. The inner center of the support member 40 is installed in each corner portion of the inner side of the 10, and the seating portion 42 is integrally formed inwardly so that the upper portion of the spring 43 mounted on the spring mounting portion 36 is seated. A fixing bar 44 having a through groove 46 formed therein is provided, and the fixing screw 28 is provided through the fixing lug 24 of the CRT 20 and the through groove 46 of the support member 40. 34 is integrally coupled to the screw groove (32).

Accordingly, the screen failure phenomenon of the CRT due to the vibration is prevented to improve the product reliability and lifespan of the television, and also the coupling state of the CRT and the front mask is firmly maintained.

Description

TV tube and front mask combiner

The present invention relates to a TV tube and a front mask coupling device for firmly installing a TV tube in a front mask and preventing vibration from being transmitted to the CRT through the front mask. Fixed ribs are formed in the center and the spring mounting portion is formed on the outer side of each of the inner edge of the front mask, and the inner center of the support member formed integrally with the mounting portion to the inside of the spring to be seated in the spring mounting portion A fixing bar having a through groove formed therein is provided, and the fixing screw is integrally coupled to the screw groove of the high information through the fixing lug of the CRT and the through groove of the supporting member.

Accordingly, due to the structure of double elastic coupling through the support member and the spring, the coupling between the CRT and the front mask is more firmly maintained, and in particular, the vibration of the front mask is transmitted to the CRT through the fixing ribs and the support member. The present invention relates to a TV tube and a front mask coupling device which can effectively prevent the screen shake of the CRT, thereby preventing the screen defects during TV application, thereby improving the product reliability of the TV.

In a conventionally known combination of a television CRT and a front mask, as shown in FIGS. 1 and 2, the fixing grooves 104 are formed at each corner of the fixing band 102 coupled to the planar portion of the CRT 100. Fixed lugs 106 are installed, respectively, and the high grooves 112 installed at each corner portion of the inner surface of the front mask 110 coupled with the CRT 100 are fixed grooves of the fixed lugs 106. The fixing screw 120 through the 104 is screwed to form a structure in which the CRT 100 is coupled to the inside of the front mask 110.

Therefore, in the combination structure of the CRT and the front mask of the conventional television having the above-described structure, as shown in Figs. 1 and 2, the CRT 100 of the CRT 112 of the front mask 110 is After matching the fixing lugs 106 installed at each corner of the fixing band 102, the fixing screw 120 is coupled to the high information 112 through the fixing washer 122.

However, in the coupling structure of the CRT and the front mask of the conventional TV as described above, as shown in Figs. 1 and 2, when the TV CRT 100 and the front mask 110 are coupled, the front mask 110 is used. Since there is no separate vibration absorbing structure between the CRT and the CRT 100, the vibration generated from the speaker (not shown) installed in the CTV is transmitted to the CRT 100 through the front mask 110 as it is, and thus the assembled TV is completed. In use, a screen quantity condition such as a screen shake, etc., in which the screen of the CRT 100 is bent due to the vibration of the front mask 110 is easily generated, and thus there is a problem that the product reliability of the TV is deteriorated.

In addition, due to the structure in which the fixed screw 120 of the single structure is directly coupled to the high information 112 through the fixing washer 122, the combined state of the front mask 110 and the CRT 100 is long-term use of the television. Or, there are a number of problems, such as the ease of loosening due to heavy flow, which may lead to a weak coupling state.

The present invention has been made to improve the conventional problems as described above, the object is, due to the structure that is fixed through the double elastic coupling of the fixing ribs and the support member, the state of the coupling between the CRT and the front mask is of course maintained, In particular, due to the fixed ribs and the spring force of the inner side of the support member moving up and down, the vibration of the front mask can be effectively absorbed and transmitted to the CRT, which prevents screen shake of the CRT and prevents the TV screen from bending. This is to provide a television tube and front mask coupling device which prevents this and improves the overall product reliability of the television.

1 is a schematic perspective view showing a coupling structure of a typical CRT and a front mask

2 is a main view showing a coupling structure of a conventional CRT and a front mask;

Figure 3 is an exploded perspective view showing the combination of the CRT and the front mask for the TV according to the present invention

Figure 4 is a side structural view showing the present inventors CRT tube and the front mask coupling device

Fig. 5 is a main view showing the coupling state of the fixing rib and the support member in the TV tube and front mask coupling device of the present invention.

Explanation of symbols on the main parts of the drawings

1 .... coupling device 10 .... front mask

20 .... Bloom tube 24 .... Fixed lug

30 .... Fixed ribs 30a, 40a .... Slope

34 .... Gojongs 36 .... Spring loaded

40 .... support member 42 .... seat

43 .... Spring 44 .... Fixed Bar

50 .... reinforced ribs

Technical means of the present invention for achieving the above object, the fixing screw through the fixing groove formed in each corner fixing lug of the flat portion fixing band front to the screw slots of high information installed on each inner corner of the front mask In the coupling structure of the front mask and the CRT coupled through a fixing rib installed in each inner corner of the mask and a support member connected thereto,

The fixed ribs are integrally formed at the inner center of the high ribs, a spring mounting portion is formed integrally with the lower part of the spring to the outside thereof, and a plurality of reinforcing ribs integrally formed with the front mask are connected to the outside thereof.

The support member is formed integrally on the inside of the mounting portion is seated to the upper portion of the spring inserted into the spring mounting portion, the fixing bar formed integrally in the inner center is formed with a through hole through which the fixing screw passes,

Both sides of the fixed part and the support member are integrally formed with the first and second inclined surfaces which engage with each other to enable the vertical movement, and the support member and the fixed rib are fixed screws to maintain a minute gap. By providing a combination of the CRT tube and the front mask coupling device characterized in that fixed to the.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing a television tube and a front mask coupling device according to the present invention, Figure 4 is a side structural view showing a television tube and a front mask coupling device of the present invention, Figure 5 is a television tube for a TV of the present invention And the front mask coupling device, the main part showing the coupling state between the fixed rib and the support member, wherein the TV tube and the front mask coupling device 1 according to the present invention have a fixed rib 30 and a support member 40. It is configured as.

A fixing screw 28 through a fixing groove 26 formed in a fixing lug 24 provided at each corner portion of the fixing band 22 mounted on the flat portion of the television CRT tube 20 is an inner angle of the front mask 10. It is coupled to the screw groove 32 of the high information 34 installed at the corner portion, the CRT 20 is coupled to the front mask 10.

In addition, the fixed rib 30 in which the high information 34 is formed inwardly has a high information 34 formed integrally at each corner of the inner surface of the front mask 10 and integrally formed at an inner center thereof. A spring mounting portion 36 into which the lower portion of the spring 43 is inserted is integrally formed in the outer side of the high information 34, and the fixing ribs 30 are formed at respective inner corners of the front mask 10. Is installed.

In addition, the support member 40, which is extended between the fixing lugs 24 to the upper side of the fixing ribs 30, has an upper portion of the spring 43 which is mounted on the spring mounting portion 36 of the fixing rib 30. The mounting portion 42 is integrally formed to the inside of the insertion coal, and the through groove 46 is formed inside the fixing bar 44 which is integrally formed at the inner center of the mounting portion 42 of the support member 40. And, the fixing screw 28 is integrated into the screw groove 32 of the high information 34 through the fixing groove 26 of the CRT fixing lug 24 and the through groove 46 of the support member 40. To be combined.

On the other hand, the first and second inclined surfaces 30a and 40a are formed on both sides of the fixed rib 30 and the support member 40 so as to be engaged with each other so that the support member 40 can move upward and downward. The fixing screw 28 is fixedly coupled to the high information 34 so as to maintain a minute gap d between the supporting member 40 and the fixing rib 30, and on the outer circumferential surface of the fixing rib 30, A plurality of reinforcing ribs 50 are formed integrally with the front mask 10 to improve strength, and are formed integrally with the front mask 10.

Referring to the operation of the present invention made of the above configuration as follows.

As shown in FIGS. 3 to 5, the spring 43 is coalesced inward while the fixing state is secured between the front mask 10 and the CRT tube 20 fixedly coupled to the inner side during the assembly process of the television. Due to the double coupling structure of the support member 40 and the fixed rib 30, the CRT tube and the front mask coupling device 1 for preventing the vibration of the front mask 10 from being transmitted to the CRT 10 are as follows. same.

First, inside the front mask 10, a CRT 20, which is a main component for providing a screen, is installed. As shown in FIG. 3, the CRT 20 is coupled to the front plane of the CRT 20. Fixing lugs 24 are installed at each corner portion, so that the fixing screw 28 through the fixing grooves 26 of the fixing lugs 24 is the inner thread groove 32 of the high-profiles 34 of the front mask 10. Coupling and fixed to the CRT 20 is installed to the inside of the front mask (10).

At this time, the high information 34 is integrally formed in the inner center of the fixed ribs 30 formed at each corner portion of the inner surface of the front mask 10, the outside of the high information 34 of the fixed ribs 30. The spring mounting portion 36 is formed therein, so that the spring 43 is coalesced in the outside of the high information 34.

Meanwhile, as shown in FIGS. 3 and 4, a cylindrical support member 40 is positioned between the fixing lugs 24 on the upper side of the fixing ribs 30, so that the inner side of the fixing ribs 30 is located. The upper portion of the spring 43, the lower end of which is seated on the seating portion 42 formed inwardly of the support member 40, the support member 40 is elastically coupled with the fixed rib (30).

In addition, the fixing bar 44 is integrally formed at the inner center of the spring seating part 42 of the support member 40, and the through groove 46 is integrally formed at the inner center of the fixing bar 44. The fixing screw 28 through the fixing lug 24 of the CRT 20 is inserted through the through groove 46 of the support member 40 in which the spring 43 is installed on the inner side through the fixing washer 28a. And then firmly coupled to the high-profiles 34 and the screw grooves 32 of the lower fixing ribs 30 of the support member 40, the elastic operation to push the support member 40 of the spring 43 It can be combined more firmly.

In addition, as shown in FIGS. 3 and 5, the CRT 20 is fixedly coupled to the high information 34 of the fixed rib 30 through the support member 40, wherein the fixed rib 30 is fixed. And the first and second inclined surfaces 30a and 40a on both sides of the support member 40 to be engaged with each other, the support member 40 is fixed to the fixed rib 30 by elastic operation of the spring 43 inwardly installed. It is possible to move in the up and down direction along the), for the up and down movement of the support member 40, the fixing screw 28, as shown in Figure 5, the support member 40 and the fixed rib ( 30 is fixed to the high information 34 so as to maintain a fine interval (d) between.

Thus, as shown in Figures 4 and 5, the support member 40 and the fixed ribs 30, the respective inclined surfaces (30a, 40a) are engaged with the up and down movement of the support member 40 by a predetermined interval ( d) is possible, which prevents the vibration transmitted from the front mask 10 from being transferred to the CRT 20 while being absorbed by the upper and lower movable support members 40, and thus the CRT due to vibration ( Various unstable states appearing on the screen of 20) are prevented, and although not shown in the drawing, the shake of the inner deck head can be prevented even in the case of a composite television equipped with VSI.

On the other hand, the inner space of the fixing ribs 30 is a spring mounting portion 36, the spring mounting portion 36 is seated on the inner side of the fixing ribs 30, because the coupling state may be weak, the front mask (outside) 10) to install a plurality of reinforcing ribs 50 integrally to ensure the strength of the fixed ribs 30, at this time install at least five reinforcing ribs (50).

Accordingly, by the elastic member and the fixed rib 30 of the spring 43, and the support member 40 capable of fine movement in up and down directions in engagement with the spring 43, it is possible to effectively prevent the vibration from being transmitted to the CRT. Of course, the coupling operation of the CRT 20 and the front mask 10 can be easily and firmly performed.

Thus, according to the present invention, the CRT tube and the front mask coupling device facilitate the coupling operation of the CRT tube and the front mask while maintaining a firmly coupled state, and in particular, on the inner spring of the support member moving along the fixing rib. Since the vibration of the front mask is effectively absorbed and blocked by the transmission of the CRT, there is an excellent effect of preventing screen shaking of the CRT and of improving the product reliability of the TV as a whole.

Claims (1)

Screw grooves of the high profile 34 installed in the inner corners of the front mask 10 are fixed screws 28 through the fixing grooves 26 formed in the corner fixing lugs 24 of the flat fixing band 22. In the coupling structure of the front mask and the CRT connected to the fixing ribs 30 installed at each inner corner portion of the front mask 10 and the support member 40 connected thereto at (32), The fixing rib 30 is integrally formed in the inner center of the high information 34, a spring mounting portion 36 is formed integrally with the lower portion of the spring 43 to the outside, the front mask ( 10 is connected to a plurality of reinforcing ribs 50 formed integrally with, The support member 40 has a seating portion 42 in which an upper portion of the spring 43 inserted into the spring mounting portion 36 is seated integrally formed inside, and a fixed bar 44 integrally formed in the inner center thereof. ) Is formed with a through groove 46 through which the set screw passes. Both sides of the fixed rib 30 and the support member 40 are integrally formed with the first and second inclined surfaces 30a and 40a which are engaged with each other to enable vertical movement of the support member, and the support member 40 And fixing ribs 30 are coupled to the high information 34 as a fixing screw 28 so as to maintain a minute spacing (d).