JPS5820079A - Projection type television receiver - 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] 2,-,.

The present invention relates to a mounting structure for a screen in a projection television receiver, in particular, which allows the screen to be easily mounted to a cabinet body in a predetermined shape without being distorted, with good workability, and which also maintains the appearance of the surrounding area. The aim is to provide something that can be improved.

First, FIG. 1 shows the basic configuration of a rear type projection television receiver and will be described. In the figure, reference numeral 1 denotes a cabinet body, with a transmissive screen 2 installed in the opening at the upper front of the cabinet, and a color television and projection elements such as red, green, and blue cathode ray tubes for double-screen projection inside. 3 is provided, and the color television image from the projection element 3 is transmitted to an optical system 4 such as a lens and reflected as #e.
Via -.

The color television image is projected onto a screen 2 so that a large color television image can be viewed from in front of the screen 2.

In such a projection television receiver aircraft, in order to project color television without distortion or color shift, the screen 2 must be deformed, such as by bending.
It is necessary to attach it to the cabinet body 1 accurately so that there are no cracks. However, in conventional projection television receivers, installing the screen 2 requires
As shown in FIG. 2, the mounting bracket 7 is attached to the crosspiece 9 around the opening of the cabinet body 1 with screws 8, the Eli screen 2 is held on this bracket, and the decorative frame 1o is placed on top of it.
Since the screen 2 was installed by engaging with the engaging tool 11, and then the decorative crosspiece 13 was connected to the upper crosspiece 12 above the upper crosspiece, and the decorative crosspiece 13 was engaged with the metal fittings 14, the screen 2 could be bent during installation and the screen 2 could become bent after installation. During use, there was a problem that the monitor would warp or deform due to changes in ambient temperature, and the correct color television image would not be projected.
The drawback was that it required a lot of work to install, and the workability was poor.

SUMMARY OF THE INVENTION Accordingly, the present invention solves these conventional drawbacks, allows the screen to be reliably attached to a predetermined shape without causing distortion to the cabinet body, and also simplifies the work at the time of attachment. It is an object of the present invention to provide a device that can improve workability by making it possible to improve workability, and also provide a good appearance to the surrounding area of the attachment portion.

Hereinafter, the present invention will be explained in detail with reference to FIG. 3 showing one embodiment thereof.

In this device, first, a frame 16 is used for mounting the screen 2. This frame 16 is constructed by providing a covering member 17 made of a drawn metal plate on the outer surface of a core material 16 formed in the shape of an opening, as shown in FIG. Fix screen 2 using 18 etc. This frame has screws 21. tongues 19 and 20 for fixing to the cabinet body 1 on one side and the opposite side, respectively.
22 or the like, or by cutting and raising it integrally with the covering member 1.7. By fixing the screen 2t to the frame body 16 in advance in this way, it is possible to prevent the screen from bending during installation and from curling during use, and to ensure accurate installation.

On the other hand, the lower end 67 of the front opening of the cabinet body 1, -
A middle crosspiece 23 formed by bending a plate-shaped metal rod is provided at the part corresponding to the frame. Hole 261r: Provided. When attaching the screen 2 to the cabinet body 2, the tongue pieces 19 attached to one side of the frame 16 are fitted into the plurality of through holes 26 provided in the middle crosspiece 23 as shown in FIG. As shown in A, the frame body 16 with the screen is pulled up and positioned at the front opening of the cabinet body 1, and the tongue piece 19 attached to the other side is attached to the upper crosspiece 27 with a fixing member 26 such as a screw. Fix the screen 2 to the cabinet body 1. By using the fitting between the tongue piece 19 and the through hole 26 of the middle crosspiece 23 in this way, the screen 2 can be easily attached with good workability.

Furthermore, as shown in FIG. 8, a retainer 28 made of a metal plate formed into a substantially crank shape is attached to the upper crosspiece 27 above the frame 16 attached to the main body 1 in this manner.
The ornaments 6 and -1 to be attached to this part are provided with an oval-shaped recess 301 in the crosspiece 29, and an engaging tool 31, which is also formed from a metal plate in the shape of a crank, is attached to the bottom wall of the recess 301. As shown in FIG. 4B, slide the decorative bar 29 downward from above so that the wide part of the recess 3o of the decorative bar 29 is fitted with the engagement tool 28.
Thereafter, it is slid to the left to engage both the metal fittings 28 and 31 as shown in FIG. 10, and the decorative bar 29 is attached to the front surface of the upper bar 12 of the cabinet body 1 as shown in FIG. 4B. If you do this, the decorative bar 29 can be removed without using screws etc.
can be easily attached to the upper crosspiece 29 with good workability.
Furthermore, since the mounting portion of the tongue piece 20 and the screw 26 can be hidden by the decorative bar 29, the appearance of the surrounding portion of the mounting portion of the frame 16 can be improved.

In order to accurately position the decorative crosspiece 29, a protrusion 32 is provided on the upper crosspiece 27, and a positioning recess 33 is provided on the decorative crosspiece 29, and these are fitted together. Just do it like this.

As described above, according to the present invention, since the screen is fixed to the frame and then attached to the cabinet body, it is possible to accurately attach the screen to a predetermined shape without causing distortion such as bending or warping. Furthermore, when attaching it, it can be easily attached with good workability by inserting the tongue piece on one side into the hole in the middle crosspiece and attaching the tongue piece on the other side to the upper crosspiece. Furthermore, the decorative beam can be easily attached to the peripheral portion of the attachment portion, and the appearance thereof can be improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the basic configuration of a projection television receiver, FIG. 2 is an exploded perspective view of a conventional projection television receiver, and FIG. 3 is a projection television receiver according to an embodiment of the present invention. Cross-sectional view of the main parts of a type television receiver, Figures 4A, B,
C is a side view of the receiver, FIG. 6 is a perspective view of the screen and frame used in the receiver, FIG. 6 is a sectional view of the main parts of the screen in its installed state, and FIG. 7 is an auxiliary plane of the cabinet body of the receiver. Figure 8 is a front view of the main parts, Figures 9A and B are a front view and a plan view of the decorative frame used in the receiver, Figure 101...Screen for cabinet 2me, 3... ...projection element, 16...frame, 18...double-sided tape, 19, 20...tongue, 23...
Middle crosspiece, 26... Through hole, 26... Screw 27-...
...Upper crosspiece, 28...Engagement tool, 29...
Decorative crosspiece, 3o... recess, 31... am4. Metal fittings. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2m Figure 5 (Rage ◇ Saddle

Claims (1)

[Claims] A cabinet body with a built-in projection element for projecting a television image is provided inside, a transparent screen on which the television image is projected is fixed to a frame, and a tongue piece provided on one side of the frame is attached to the cabinet. The screen is fitted into the hole formed in the middle crosspiece of the main body, and the tongue piece provided on the opposite side of the frame is fixed to the upper crosspiece of the cabinet body with a fixing member such as a screw, so that the screen is attached to the cabinet main body. mounting, attaching an engaging tool to a position above the position where the tongue piece of the frame body is fixed on the upper rail, and peeking into the decorative rail an engaging tool that engages with the engaging tool; A projection type television receiver characterized in that the decorative frame is mounted above the frame of the cabinet main body by engaging both the engaging tools.