PROTECTOR FOR CONNECTOR TERMINAL CATHODE RAYS TUBE
BACKGROUND OF THE INVENTION The present invention relates to a cathode ray tube (CRT), and more particularly to a shield for CRT terminal connectors that protect the terminal connectors in a neck position of a CRT. In general, a CRT is constituted by a panel having a luminescent film on its interior surface and a funnel connected to the panel and having an electron gun and a deflection yoke in and out of a neck portion.
A plurality of terminal connectors or connectors are affixed to the end of the neck portion at predetermined intervals, to apply a predetermined voltage at each electrode and electron gun. The mounting of the terminal connectors to the end of the neck portion in the CRT causes the end of the neck portion to break when a slight external impact occurs and releases the terminal connectors of mutual isolation. In addition, the rupture at the end of the neck portion is likely to destroy the vacuum state in the CRT. In the prior art, to solve the above problems, a base stage 120 is installed to protect a mounting tube from a terminal connector 110a, to which a high voltage is applied, between terminal connectors 110 and a neck portion REF: 23527 100 in a CRT, and a shield 10 covers the terminal connectors 110a and 110 against external impacts. This shield 10 is provided with a cylindrical body 11 having a drilled portion Ia, and a flange portion 12 extending radially on the outer surface of one end of the body 11. A plurality of the holes for insertion of connector 11b and 11c they are disposed along the cylindrical portion to correspond to the terminal connections 110 and 110a in the body 11. The connector insertion hole 11c, for inserting the terminal connector 110a, differs from other holes for connector insertion 11b by cutting portions lid that intersect the length of the body 11 from both sides of the connector insertion hole 11c. However, the conventional protector 10 as constituted above has the following problems: (1) due to the circular shape of the protective body, it consumes a significant amount of time to precisely adjust the position to combine the. protector with fixed terminal connectors to the neck position; and (2) when the protector is inaccurately combined with the connector terminals, the intervals at which the terminal connectors are arranged, thus buckling the terminal connectors or breaking the neck portion to which they are attached, are inconsistent. the bases of the terminal connectors. As a result, the empty state of the CRT can be interrupted. SUMMARY OF THE INVENTION The object of the present invention is to provide a protector for CRT terminal connectors, which allows quick and easy adjustment of the position to combine terminal connectors with the protector. To achieve the above objective, a protector is provided for CRT terminal connectors comprising a cylindrical body having a drilled or drilled center and having a plurality of holes for insertion of connectors longitudinally taken concentrically around the perforated portion, for inserting terminal connectors installed in a neck portion of the CRT, and a flange portion formed at one end of the body, wherein at least one of the body and the flange portion have means for adjusting a position to combine the terminal connectors with the shield. In the present invention, the means for position adjustment comprise projections or concave portions formed on at least one side of the body surface.
BRIEF DESCRIPTION OF THE DRAWINGS The foregoing objects and advantages of the present invention will be more readily apparent upon describing in detail preferred embodiments thereof with reference to the accompanying drawings in which: Figure 1 is an exploded perspective view showing a combination of terminal connectors installed in a neck position of a CRT with a conventional protector; Figure 2 is an exploded perspective view showing a combination of terminal connectors installed in a neck portion of a CRT with a shield in accordance with the present invention; and Figures 3 to 8 illustrate other embodiments of the protector according to the present invention. DESCRIPTION DKTAT.TAIN OF THE INVENTION In Figure 2, like reference numerals denote the same elements as those of Fig. 1. As illustrated in Figure 2, a shield 20 is provided in accordance with the embodiment of the present invention. with a cylindrical body 21 having a perforated portion 21a, and a flange portion 23 extending radially from one end of the body 21. A plurality of connector insertion holes 22 and 22a are formed longitudinally in the body 21 to be combined with terminal connectors 110 and 110a fixed to a neck portion
100 of a CRT. The holes for connector insertion 22 and
22a are arranged concentrically to correspond to the terminal connectors 110 and 110a. The connector insertion hole 22a, to which a high voltage is applied, is distinguished from the holes for connector insertion 22 by a cutting portion 21b formed on the body length 21 from both sides of the connector insertion hole 22a. A position adjusting portion 30 is provided on the outer surface of the body 21, to adjust to a position, to combine the shield 20 with the terminal connectors 110 and 110a. The position adjusting portion 30 has a flat surface as illustrated in Figure 2. In this way, an operator can quickly and precisely match the combination position, by manually adjusting the flat surface of the position adjusting position 30. In Figure 2, the reference number 130 denotes a rod for insertion in the hollow portion 21a of the body 21. The position for position adjustment may have flat surfaces 30a on both sides of the body 21 and the flange 23 as illustrated in FIG. Figure 3. As illustrated in Figure 4, the concave portions 41 and 42 preferably have different angles of curvature can be formed on both sides of the body 21 of the protector, according to a third embodiment of the present invention. According to a fourth embodiment of the position adjustment portion of the protector of the present invention, projections 51 and 52 can be formed on opposite sides of the outer surface of the body, as illustrated in Figure 5. These projections 51 and 52 of Preferences are different in configuration, such that the operator can easily detect the combination position manually. Here, the end positions of the projections 51 and 52 are preferably hemispherical. The number of projections 51 and 52 may vary. According to a fifth embodiment, the position adjustment portion in the protector of the present invention, slots 61 and 62 can form opposite sides of the flange portion 23, as illustrated in Figure 6. The slots 61 and 62 can formed on one side of the flange portion 23, and slots 61 and 62 may be different in size. According to a sixth embodiment of the position adjustment portion, a square groove 71 or a circular groove 71? can be formed at the inner circumferential edge of the flange portion 23, as illustrated in Figures
7 and S. Slot 71 * may be curved.
Although it is circular, the hollow portion 21a can be made elliptical to serve a position adjusting portion of the protector. The protector combination position is adjusted by manually detecting slots 71 and 71. By using the position adjustment positions for the protector as described above, the position for combining the protector with the terminal connectors can be adjusted with the following advantages. (1) The protector can be combined with the terminal connectors easily and quickly, since the protector combination position can be adjusted manually. From a test, it was noted that the time to combine the protector was reduced by 50% or more; and (2) The buckling of the terminal connectors and rupture of the neck portion are avoided by precisely combining the terminal connectors with the protector, thereby markedly reducing product failures and material costs. The protector for CRT terminal connectors according to the present invention is not restricted to the above embodiments, and it is clearly understood that many variations are possible within the scope and spirit of the present invention by anyone skilled in the art.
For example, grooves or projections may be formed on both sides of the guard body. It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it relates. Having described the invention as above, the content of the following is claimed as property: