JPS58123581A - Filter mounting unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to several embodiments of filters placed in front of cathode ray tubes, particularly in cathode ray tube display monitors.

In the cathode ray tube display monitor mentioned above, in order to eliminate the difficulty of viewing the cathode ray tube due to the reflection of external light when looking directly at the cathode ray tube, a filter made of translucent plastic of each color is placed in front of the cathode ray tube to protect the first eye. I try to do that. To attach this filter, in the conventional example, an adhesive 2 page agent 2 is applied to the back side of the filter 1 made of translucent plastic, and this adhesive 2 is used to directly attach the imager 1 to the front surface of the cathode ray tube 3. was. In this state, the cathode ray tube 3 was fixed to the front cabinet 5 with a plurality of screws 4. Note that 6 is the rear cabinet.

However, in this case, if an impact F is applied from the front of the cathode ray tube display monitor and the filter 1 and cathode ray tube 3 are destroyed, the fragments will fly forward and be dangerous, while the adhesive 2 will be visible from the front, which will affect the aesthetics. There was also the problem of damaging the

An object of the present invention is to eliminate the drawbacks of the conventional method, in which the filter is movably attached to the front mask, and a small gap is provided between the filter and the front surface of the cathode ray tube, so that the filter can be exposed to external shocks. Even if the filter is exposed to water, the filter will absorb it and will not be destroyed.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 8.

A first embodiment is shown in FIGS. 3 to 6. 10 in the figure
1 is a mask portion, and mounting holes 3, - for filter 11 are shown.

Three holes 12 are provided on the inner surface. Filter 1
1 is made of cellulose, etc., is translucent and flexible, and has one reference hole 1 corresponding to the boss 12 for cutting +1.
3 and two notch grooves 14 are provided.

This reference hole 13. A take-up pin 16 having a knurled portion 15 at the tip that passes through the notch groove 14 is attached to the mounting boss 12.
”: The refilter 11 is inserted into the mask portion 1.
I can write a few words on 2. At this time, the filter 11 and the mounting boss 1
2 and the head of the mounting pin 16.
A gap is provided that allows the filter 11 to move (flex) when a force F as shown in FIG. 2 is applied to the filter 11. Then, the mask part 10 with the filter 11 attached thereto is attached to the front cabinet no. For this purpose, the mask section 104dll
a plurality of protrusions 18 that protrude vertically on one side of the
On the other side surface, each piece 19 is formed in an abbreviated shape and protrudes integrally, and correspondingly, openings 20 and 21 are provided in the front cabinet 17, and the mask part 10
To attach the protrusion 18, first insert the protrusion 18 into the hole 2o, and in this state, use the fitting part of the protrusion 18 as a fulcrum to attach the mask part 1.
As shown in FIG. 6, the rotary shim 19 is inserted into the front cabinet 17 through the opening 21, and is engaged with a portion thereof. This completes the ITY of the mask portion 1o. This state is shown in FIGS. 4 and 5 a and b. At this time, the front cabinet 17 has already been fixed to the previous front cabinet 1. The front of the cathode ray tube 22 and the filter 1
An intervening part 23 is provided integrally with the intervening part 2 so that there is a slight gap (about 1.6 mm) between the intervening part 2 and the
3 is provided with a hole 24 for escape of the head of the bottle 16.

In this configuration, the filter 11 is provided with a cutout groove 14 and a gap is provided between the filter 11 and the boss 12 and the J pin 16.
1 and the cathode ray tube 22.
Even if an external force F is applied from the front of the filter 11, the force 1
1 deforms and bends to absorb this force F. Therefore, the filter 11 will not be destroyed, and when the external force F is removed, the filter 11 will return to its original state due to its flexibility. Furthermore, if the filter 11 is to be replaced with one of a different color tone, for example from a blue filter to an orange filter, this can be easily done by simply inserting and removing the bottle 16 in some cases.

Other embodiments are shown in FIGS. 7 and 8. In this example, all of the old holes of the filter 11 are made into notched grooves 14. With this, a mounting pin 16 is driven into the boss 12 for several phrases in advance, and the filter 11 is bent in this state.
By fitting the pin 16 into the filter 4, the filter 11 can be more easily attached and detached. of course,
At this time, the filter 11 is removed so that it can be moved.

Further, according to this configuration, even when the mask portion 1o is integrated with the front cabinet 17, [fx (
= 1 item, it is removable.

As described above, according to the present invention, the filter is movably attached to the front mask and a gap is provided between the filter and the front surface of the cathode ray tube, so that when an external force is applied to the filter, the filter deforms. This can be absorbed by the filter, preventing damage to the filter and, by extension, the cathode ray tube.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a cathode ray tube display monitor, and Fig. 2 is a conventional example. FIG. 3 is an exploded perspective view of a filter mounting device according to an embodiment of the present invention, FIG. 4 is a longitudinal sectional view of the same device, and FIGS. 6 a and b are cross-sectional views of the same device. FIG. 6 is a perspective view for explaining the mounting operation of the mask part, and FIGS. 7 and 8 are perspective views and essential parts of other embodiments of the present invention, respectively. FIG. 10. Mask part, 110. ,,,filter, 12...Boss for several phrases 113...Reference hole, 14...0.000. Notch groove, 15,...
,,Knurling part, 16°...Mounting pin 22
...Cathode ray tube. 51X Names of Patent Attorney Toshi Nakao and 1 other person
Figure 1 O'' Figure 2 Figure 4 1θ - 1 2 Figure 3 Figure 5

Claims (1)

[Claims] A plurality of flexible flat filters are arranged in a shapeable and movable manner as a mask part, and the mask part including the filters is placed in a cabinet to which a cathode ray tube is fixed, so that there is a gap between the cathode ray tube and the filter. Filter mounting device installed so that it remains.