JPH0646133Y2 - Television receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a television receiver such as an AV (Audio Visual) color television.

<Prior Art> Recently, the demand for color televisions has become diversified and sophisticated, and along with this, many AV color televisions equipped with auxiliary circuits such as a sense of presence enhancing circuit and a center speaker and a deep bass speaker box have been commercialized. Has been done.

In the color TV as described above, to the left and right of the CRT,
The tweeter, squawker, and woofer ports are located, and the woofer is built into the receiver body. The structure of the woofer port in the above-described conventional color television will be described with reference to the drawings.

FIG. 5 is a cross-sectional explanatory view of a conventional woofer port. A punching net 6 is provided on the front surface of the woofer port 5 formed in the front housing 1. FIG. 6 is a cross-sectional explanatory view showing a different conventional example, in which a punching net is not provided only around the woofer port 5. In either case, heavy bass proceeds from the woofer built into the receiver main body in the direction of the arrow in the figure, and is propagated to the outside from the woofer port 5.

<Problems to be solved by the invention> In the case where the punching net is provided, it is inevitable that the punching net deteriorates the sound quality to some extent, and that fine foreign matters such as dust and insects enter the woofer port.

In the case where the punching net is not provided, the generated sound reaches the user directly, so that the sound quality is less deteriorated, but the intrusion of foreign matter cannot be prevented. Also, FIG. 5 and FIG.
In all cases shown in the figure, the woofer port is always exposed and cannot be covered, so the sound quality cannot be selected. Further, as described above, since the television receiver has a wide variety of purposes and uses, heavy bass may be an obstacle, for example, for use at night or as an information medium for news or the like. In such a case, the conventional structure in which the woofer port is always exposed is not preferable in terms of function and maintenance.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a television receiver which covers the woofer port when it is not used and which does not deteriorate the sound quality.

<Means for Solving the Problems> A television receiver according to the present invention has a speaker group including a woofer port mounted around the cathode ray tube on the front surface of the receiver body, and the cathode ray tube as a reference in front of the speaker group. It is characterized by being provided with a pair of decorative frames which are provided so as to be openable and closable in the left-right direction so as to cover the woofer port at the closed position and to expose the woofer port at the open position.

<Operation> When the decorative frame is closed, the woofer port is covered by the decorative frame, and when the decorative frame is open, the woofer port is exposed.

<Embodiment> An embodiment according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the television receiver in which the left and right decorative frames are closed and a part of which is cut away. FIG. 2 is a front view of the television receiver in which the left and right decorative frames are opened.
The drawing is a cross-sectional view taken along the line AA shown in FIG. 1, and FIG. 4 is the B shown in FIG.
It is a B-line sectional view.

A display section (corresponding to an image display section) of a cathode ray tube 111 fixed inside a receiver main body 10 which is a frame body of the illustrated television receiver is arranged. On the left and right sides of the display of the cathode ray tube 111, tweeter, squawker, woofer (not shown), and the left port 13 for the woofer are located at symmetrical positions with respect to the display of the cathode ray tube 111.
And a right side port 14 are attached, which constitutes a speaker group.

The decorative frame 12 is arranged on the front surface of the receiver main body 10 and is a frame body having a substantially U-shaped cross section when viewed from the front and having a horizontal edge 12a and a vertical edge 12b. Surface 10a and side wall 10b
Covers at least part of the. The decorative frame 12 is divided into two parts on the left and right sides, and is composed of a pair of a left decorative frame 121 and a right decorative frame 122. Furthermore, a CRT in the center of the decorative frame 12
It has an opening 123 that exposes the display portion of 111 and the speaker group excluding the left side port 13 and the right side port 14. Furthermore, the left decorative frame 121 and the right decorative frame 122 are opened and closed in the left-right direction with respect to the cathode ray tube 111 by moving the top surface 10a of the receiver main body 10 by an appropriate means.

The left port 13 and the right port 14, which are not normally used, are covered by the left decorative frame 121 and the right decorative frame 122 at the closed positions Y and Y ', respectively. Further, it is exposed at the open positions X and X '.

In FIG. 3, the right decorative frame 122 is in the closed position, and the horizontal line 12a covers the right port 14.
Also, in FIG. 4, the right decorative frame 122 is in the open position, the tip of the horizontal edge 12a is away from the opening range of the right port 14, and the right port 14 is exposed, and the sound from the right port 14 is shown. Propagate outward as indicated by the arrow. The size and shape of the right port 14 and the horizontal edge 12a are determined so that they act as described above at the open / close positions X and Y of the right decorative frame 122. The operation of the left decorative frame 121 is similar to that of the right decorative frame 122.

<Effect of the Invention> As described above, the television receiver of the present invention is provided with the openable and closable decorative frame for covering and exposing the woofer port. Therefore, when the woofer is used for listening to music, by exposing the woofer port, a high-quality and powerful bass range can be obtained. When the woofer is not used, the woofer port is covered so that the bass range is not emphasized more than necessary and the woofer can be used in a comfortable state.

Furthermore, when not in use for a long time or when the receiver main body is moved, it is possible to prevent foreign matter from entering the woofer port by keeping the decorative frame in the closed position. Even if foreign matter has invaded, when the decorative frame is in the open position, the woofer port is exposed, so cleaning is easy.

[Brief description of drawings]

1 to 4 are drawings according to the present invention, in which FIG. 1 is a front view of a television receiver with a left and right decorative frame closed, and FIG. 2 is a left and right decorative frame. The front view of the television receiver showing the state in which the frame is opened,
The drawing is a cross-sectional view taken along the line AA shown in FIG. 1, and FIG. 4 is the B shown in FIG.
It is a B-line sectional view. 5 and 6 are cross-sectional explanatory views of a bass port showing a conventional example. 10… Receiver 11… Front housing 12… Decorative frame 121… Left decorative frame 122… Right decorative frame 13… Left port 14… Right port 15… Woofer port

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ikuo Nakamura, 22-22 Nagaike-cho, Nagano-cho, Abeno-ku, Osaka, Osaka Co., Ltd. (72) Creator Takayu Kumaido 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Prefecture

Claims (1)

[Scope of utility model registration request] 1. A speaker group including a woofer port mounted around a cathode ray tube on the front surface of a main body of a receiver, and a woofer in a closed position which is provided on the front surface of the speaker group so as to be openable and closable in the left-right direction with reference to the cathode ray tube. A television receiver comprising a pair of decorative frames that cover the ports and expose the woofer ports in the open position.