JPH0453372A - Speaker equipment for 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] This relates to the mounting structure.

Conventional technology In recent years, television receivers have entered the AV era.
Demand for sound has also increased. Under these circumstances, an irregular horn-shaped speaker box, as shown in Figure 4, has appeared in order to produce good sound without sacrificing the compactness of the television receiver.

The front side of this speaker box has a vertical slit, and the plane when attached to the television receiver is the 5th slit.
As shown in the figure, the speaker box 4-1 is placed in the gap between the side wall and the cathode ray tube 5-1.

Conventionally, the speaker box fixing lip 44 integrally molded on the speaker box 4-1 is attached to the TV cabinet 4-1.
The screw 5-2 is fitted into the adhesive hos 4-5 attached to the screw 5-2.
It is fixed at At this time, a claw 4-9 provided on the body of the adhesive boss 4-5 fits into a recess 4-8 provided on the speaker box fixing rib 4-4, allowing temporary fixation. The rear of the speaker box 4-1 is the back cover 4.
A cross rib 4-6 integrally formed on the speaker box 4-3 is fitted into a cross rib receiver 4-7 provided on the speaker box 4-1.

Problems to be Solved by the Invention In the conventional mounting method, as shown in Fig. 5, in order to reduce the width dimension of the punching net portion 5-2 of the cabinet, the gap between the cabinet 4-2 and the speaker box 4-1 is minimized. I'm keeping it small. Therefore, adhesive boss 4 for installation
-5 is placed in the recess of the fixing rib 4-4 provided on the side surface of the speaker box. In this state, if you pull the speaker box 4-1 straight to the rear of the box, the adhesive boss 4-5 will be attached to the front part of the speaker box 4-1 as shown by the dotted line.
There is a similar relationship.

Therefore, when installing the speaker box 4-1, the speaker box 4-1 has to be pushed in from an angle, and then pushed in the dotted line, and then pushed forward, which is inconvenient and makes it impossible to use an automatic machine.

Furthermore, the rear surface is fixed by fitting the cross rib 4-6 provided on the back cover 4-3 with the cross rib receiver 4-7 provided on the speaker box 4-1, but this method is not applicable. Since the inclination dimension a of the tip of the cross rib can only be made small, the flat part of the tip of the cross rib can not absorb the backlash during work or the error of the parts, and the flat part of the tip of the cross rib is set in the cross rib presser rib 4 provided in the receiver 4-7. The current situation is that the rib 4-10 may get stuck on the rib 4-10 and the work cannot be carried out smoothly, or the rib 4-10 may be broken.

Means to Solve the Problem In order to improve the workability when installing the speaker box 1-1 to the cabinet 1-6 and to make it compatible with automatic machines, a roughly U-shaped recess is installed in the front and back direction of the speaker box 1-1. A groove 1-2 is formed, and a fixing rib 1-3 with a screw tightening hole is provided in the middle of the groove. Further, the cabinet is integrally provided with a boss 1-8 that fits into this groove 1-2. This boss may be a separate piece and may be glued to it. On the front side, sandwich ribs 1-9 are provided to sandwich the front opening of the speaker box, with a spacing slightly smaller than the width of the speaker box 1-1. establish.

In addition, a concave portion 1-4 having a two-stage angle is provided on the rear surface of the speaker box 1-1, and an automatic machine chuck surface 1 is provided on this surface in a manner that faces almost perpendicularly to each other.
-5 is provided.

The back cover 1-7 is provided with a round rib 1-10 that fits into a dome-shaped recess 1-4 provided in the speaker box.

As shown in Figure 3, this round rib has a slit 1 at its tip.
-11 may or may not be present.

The dimension 8 of the dovetail-shaped recess is made larger than the outer diameter dimension C of the round rib 1-10. Further, a holding rib 1-41 is provided in a part of the concave portion to press and deform the round rib 1-10, and its dimension d is set to be slightly smaller than the outer diameter dimension C of the round rib.

While aligning the substantially U-shaped groove 1-2 of the speaker box 1-1 with the boss 1-8 provided on the action cabinet 1-6,
Push it straight in, force the front end of the speaker box into the sandwich rib 1-9 provided on the cabinet 1-6, and temporarily tighten it with the screw 2-3. Install back cover 1-7. A round rib 1-1O provided on the back cover 1-7 deforms and fits into a slotted recess provided on the speaker box. Since the front and rear surfaces of the speaker box are fixed using the deformation of the resin, the vibrations of the speaker box are absorbed. Also, when pushing the speaker box into the cabinet, use the automatic chuck surface 1 provided on the speaker box 1-1.
-5 may be chucked with an automatic machine and pushed in straight.

Embodiment An embodiment of the present invention is shown in FIGS. 1, 2, and 3, with FIG. 1 showing an exploded view of the speaker box, cabinet, and back cover, and partial details thereof. FIG. 2 is a plan cross-section showing the assembled state. Figure 3 shows the round rib 1-10 of the back cover for holding down the rear surface and the slotted recess 1-4 of the speaker box.
It shows the details of.

Effects of the Invention The present invention makes it possible to mount the speaker box using an automatic machine, which was previously impossible, and improves work efficiency.In addition, items that could only be fixed with adhesive bosses on separate pieces can now be fixed with bosses that are integrated into the cabinet. , which is related to cost reduction.

Further, since the shape of the beveled recess 1-4 allows the size of the inclined portion to be increased, the workability when pushing in the back cover is further improved.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view and a partially detailed view of the present invention. FIG. 2 is a plan sectional view showing the state of the present invention after assembly. FIG. 3 is a detailed partial view of the rear fitting portion of the present invention. Fourth
The figures are an exploded perspective view and a partially detailed view of a conventional example. Fifth
The figure is a plan sectional view of a conventional example in an attached state.

Claims (4)

[Claims] (1) When installed, a roughly U-shaped groove is formed on the side wall of the TV cabinet, and the groove has a surface with a hole for tightening screws in the middle, and a concave groove with two angles on the rear surface. and a television built-in speaker box having a surface that faces the concave surface at a nearly right angle. (2) The boss that fits into the substantially U-shaped groove of the speaker box according to the first aspect is integrally molded, and has opposing ribs formed at a spacing slightly smaller than the front width of the front surface of the speaker box. A cabinet for a television receiver. (3) A back cover for a television receiver having a round rib that fits into a dovetail-shaped recess on the rear surface of the speaker box according to the first aspect. (4) A television receiver with a built-in speaker box, in which the speaker box according to the first aspect is attached to the cabinet according to the second aspect, and the back cover according to the third aspect is attached.