JPH0323743Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a television receiver, and more particularly to an improvement in a device for attaching a cathode ray tube, an escutcheon, and a printed circuit board to a chassis.

[Conventional technology]

For example, in conventional monitor television receivers, a printed circuit board is usually attached to the chassis via a mounting bracket, a cathode ray tube is attached to the chassis using a mounting frame, and then an escutcheon is attached to the front of the chassis and the cathode ray tube. It was stored in a case.

[Problem that the invention attempts to solve]

Such conventional television receivers require special mounting hardware to attach the printed circuit board, which is not only troublesome to assemble, but also requires a lot of effort when inspecting, repairing, or replacing the printed circuit board. After removing the escutcheon and cathode ray tube from the chassis, it was necessary to remove the printed circuit board, which caused various problems, such as being extremely troublesome and time consuming.

[Means for solving problems]

The present invention was developed to solve the above-mentioned problems, and includes an escutcheon having cathode ray tube mounting portions at the four corners of the window, and a plurality of mounting legs with grooves for positioning the printed circuit board at the bottom. , a chassis body comprising a cathode ray tube having a mounting piece for attaching the cathode ray tube mounting portion of the escutcheon to the cathode ray tube mounting portion of the escutcheon near the front end, a front plate at the front end and a bottom plate having a plurality of mounting pieces on the left and right sides, and a rear end portion. A back chassis consisting of a back plate and a bottom plate with multiple mounting pieces on the left and right sides,
To provide a television receiver comprising a printed circuit board, a cathode ray tube mounted on the escutcheon and mounted on the chassis main body, and a printed circuit board mounted on the rear chassis and mounted on the chassis main body.

[Effect]

A cathode ray tube is attached to the mounting part of the escutcheon to make it tight, and a printed board is attached to the back chassis to make it tight. Then, fix the escutcheon kit to the front of the chassis body, and
Insert the printed circuit board kit from the rear of the chassis body along the chassis body and fix it to the chassis body.

〔Example〕

FIG. 1 is an exploded perspective view of an embodiment of the chassis constituting the present invention. In the figure, 1 is the chassis body, and the front end of the bottom plate 2 is bent at an almost right angle to form a front plate 3, and the front plate 3 is provided with a plurality of holes 4 through which knobs and the like protrude. . Further, both sides of the bottom plate 2 are bent at almost right angles to form side plates 5, 5a, and these side plates 5, 5a have attachment pieces 6, 6a to the case, and attachment pieces 7 to the rear chassis and case, which will be described later. 7a and 7b are provided. Reference numerals 8 and 8a are screw holes provided in the bottom plate 2 for attaching an escutcheon.

11 is the back chassis, and the bottom plate 12 is L-shaped in plan.
The rear end portion is bent at a substantially right angle to form a back plate 13, and this back plate 13 is provided with a plurality of holes 14 through which cables and the like are inserted. 15,15
a and 15b are mounting pieces for the chassis body 1 provided on both sides of the bottom plate 12, and 16 and 16a are printed circuit boards 2.
0 mounting hole.

FIG. 2 is an exploded perspective view of an embodiment of the escutcheon and cathode ray tube constituting the present invention, FIG. 3a is a rear view of the escutcheon, b is a side view, and c is a bottom view. In the figure, 21 is the escutcheon,
A window 22 for a cathode ray tube is provided at the front. Reference numerals 23, 23a, 23b, and 23c are screw holes for mounting a cathode ray tube provided at the four corners of the window. window 22
Below is a stepped portion 24 on which a cathode ray tube 41 is placed.
Mounting legs 25, 25a to the chassis body 1 are provided on both sides of the stepped portion 24, and screw holes 26, 2 are provided in the mounting legs 25, 25a, respectively.
6a is provided. 27 is both mounting legs 25,2
The supporting legs hang down from the stepped portion 24 between the mounting legs 25, 25a and the supporting legs 27, and there are grooves 28 for positioning the printed circuit board 20 on the inside of the mounting legs 25, 25a and the supporting legs 27.
28a and 28b are provided. 30, 31,
Reference numeral 31a denotes a positioning piece for the chassis main body 1 that hangs down from the lower surface of the stepped portion 24, and the positioning pieces 30, 31, 31
A gap g is formed between a and a.

Reference numeral 41 in FIG. 2 is a cathode ray tube with some parts omitted, and a metal band 42 is attached to the outer periphery close to the front surface, and at the four corners of this metal band 42 there are mounting pieces 43 to 43c for attaching the escutcheon 21. is provided.

Next, an example of an assembly sequence of the present invention consisting of the above-mentioned parts will be explained.

(1) Place the cathode ray tube 41 on and abut the stepped portion 24 of the escutcheon 21, and insert screws from the mounting pieces 43 to 43c into the screw holes 23 to 23c, respectively, and fix.

(2) Abut the printed circuit board 20 on the bottom plate 12 of the rear chassis 11 and fix it with screws through the mounting holes 16, 16a.

(3) Escutcheon 2 with cathode ray tube 41 installed
1 on the chassis body 1, and place the positioning piece 3 on the chassis body 1.
The front plate 3 of the chassis main body 1 is fitted into the gap between 0 and 31, 31a.

(4) Insert screws from the back side into the screw holes 8, 8a provided in the chassis body 1, and screw holes 26, 26a provided in the mounting legs 25, 25a of the escutcheon 21.
Screw in to secure both together.

(5) From the rear of the chassis body 1 with the escutcheon 21 attached, walk along the bottom plate 2 to the rear chassis 1.
1, and its front end and both sides are fitted into the positioning grooves 28, 28a, 28b provided in the mounting legs 25, 25a and the support legs 27 of the escutcheon 21.

(6) Connect the mounting pieces 7 to 7b and 15 to 15b of the chassis body 1 and the rear chassis 11 with screws.

(7) Finally, the receiver thus assembled is assembled into a case (not shown).

The present invention has been explained above, but the shape of each part,
It goes without saying that the structure and the like are not limited to the above embodiments, and may be modified as appropriate without departing from the gist of the present invention.

[Effect of idea]

As is clear from the above description, the present invention combines the escutcheon, the cathode ray tube, the printed circuit board, and the back chassis into a kit, making it easy to manage inventory as well as assemble the kit. It is. Also, without removing the escutcheon or cathode ray tube from the chassis,
Since only the printed circuit board kit is removable, inspection, repair, and replacement of the printed circuit board becomes extremely easy, which has great practical effects.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the chassis main body and rear chassis that constitute the present invention, Fig. 2 is a perspective view of an embodiment of the escutcheon and cathode ray tube (main parts only) that constitute the present invention, Fig. 3a, b and c are a rear view, a side view, and a bottom view of the embodiment of the escutcheon. 1: Chassis body, 2: Bottom plate, 3: Front plate,
6, 6a, 7, 7a, 7b: Mounting piece, 11: Back chassis, 12: Bottom plate, 13: Back plate, 15, 1
5a, 15b: Mounting piece, 20: Printed circuit board, 2
1: Escutcheon, 22: Window, 23, 23a,
23b, 23c: Braun tube mounting part, 25, 25
a: Mounting leg, 27: Support leg, 28, 28b, 28
c: positioning groove of printed circuit board, 41: cathode ray tube, 43, 43a, 43b, 43c: mounting piece.

Claims (1)

[Claims for Utility Model Registration] A cathode ray tube mounting portion provided at the four corners of the window, a stepped portion provided below the window on which the cathode ray tube is placed,
an escutcheon including a positioning piece for the chassis body hanging below the step and a plurality of mounting legs provided below the step and having a positioning groove for the printed circuit board; A back chassis comprising a cathode ray tube with a mounting piece fixed to a cathode ray tube mounting part, a back plate erected at the rear end, and a bottom plate provided with mounting pieces to the chassis body on the left and right sides; It consists of a printed circuit board that is attached to the bottom plate, a front plate that stands up at the front end and into which the positioning pieces of the escutcheon are fitted, and a bottom plate that has mounting pieces for the case and back chassis on the left and right sides, and the cathode ray tube is attached to the bottom plate. A television receiver consisting of an escutcheon and a chassis body to which a back chassis to which a printed circuit board is attached is attached.