JPH0145195Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a speaker device that emits signals output from audio equipment such as a tape recorder.

(b) Prior Art Recently, portable audio equipment called head-on stereo has become popular. Such audio equipment is configured to listen to the playback sound of, for example, a tape recorder using a headphone.
It is not possible for many people to listen to the playback sound. Therefore, when a large number of people listen to reproduced sound using such audio equipment, speakers are connected to output terminals provided on the audio equipment. When the audio equipment is a stereo type having left and right channels, two speakers are required, which is inconvenient to carry.

(c) Purpose of the invention The present invention is intended to provide a speaker device that can be used by being connected to audio equipment such as a headphone stereo and is convenient to carry.

(d) Structure of the invention The present invention makes it convenient to carry by integrating a speaker that emits a signal located at the center of a stereo signal and speakers that emit sounds located on the left and right sides, respectively. At the same time, a sufficient stereo effect is obtained.

(E) Examples The drawings all relate to the speaker device of the present invention.
FIG. 1 is a perspective view showing the used state, and FIG. 2 is a perspective view showing the stored state. 1 is a first speaker that emits a signal located at the center of a stereo signal;
It is fixedly installed. Reference numeral 3 denotes a first connecting plate rotatably attached to the left end L of the front plate 2f constituting the first speaker box 2, and its left and right length is equal to the left side plate 2l of the first speaker box 2. The length is approximately the same as the length in the front-rear direction. A second connecting plate 4 is rotatably attached to the right end R of the front plate 2f constituting the first speaker box 2, and its left and right length is equal to the right side plate 2r of the first speaker box 2. The length is approximately the same as the length in the front-rear direction. 5 is a second speaker that emits a signal located on the left side of the stereo signal; 6 is a second speaker box to which the second speaker 5 is fixed; and 6 is a second speaker box to which the second speaker 5 is attached and fixed; It is rotatably mounted on the 7 is a third speaker that emits a signal located on the right side of the stereo signal; 8 is a third speaker box to which the third speaker 7 is fixed;
It is rotatably attached to the right end portion 4r of the second connecting plate 4. In such a configuration, the second speaker box 6 and the third speaker box 8
The left and right lengths of the rear panel 2b of the first speaker box 2 are set to be equal to or less than half of the left and right lengths of the back plate 2b of the first speaker box 2, respectively. Also, 9 and 10 are
These are first and second speaker terminals connected to the output terminals of audio equipment such as a head-on stereo, and the left channel signal applied to the first speaker terminal 9 is transmitted to the first speaker box 2 and the first speaker terminal.
The right channel signal is applied to the second speaker 5 through the cord wired inside the connecting board 3 and applied to the second speaker terminal 10 through the cord wired inside the first speaker box 2 and the second connecting board 4. It is applied to the third speaker 7. The first speaker 1 provided in the first speaker box 2 is configured such that a signal located at the center of the left and right signals is applied by a matrix circuit or the like.

The speaker device of the present invention is constructed as described above, and its use will be explained next. Although there are various ways to use the speaker device of the present invention, it is usually used in the state shown in FIG. In this state, the left and right output terminals provided on the audio device are connected to the first and second speaker terminals 9 and 10. The left channel signal is emitted from the second speaker 5, and the right channel signal is emitted from the third speaker 7. The signal located at the center of the left and right channels is emitted by the first speaker 1. In such a state, the second speaker 5 and the third speaker 7 are separated from each other the most in the left and right directions, so that a good stereo sound can be obtained. Furthermore, by changing the rotation angles of the first connecting plate 3, the second connecting plate 4, the second speaker box 6, and the third speaker box 8, it is possible to perform the optimal sound emitting operation according to the location of the speaker device. I can do it.

The speaker device of the present invention is used as described above, but storage will be explained next. FIG. 2 shows a state in which the speaker device of the present invention is housed. In such a state, after the first connecting plate 3 and the second connecting plate 4 are rotated clockwise and counterclockwise, respectively, from the state shown in FIG.
and the third speaker box 8 are rotated clockwise and counterclockwise, respectively. That is, in such a state, the back surfaces of the first connecting plate 3 and the second connecting plate 4 are in contact with the left side plate 2l and the right side plate 2r of the first speaker box 2, respectively, and the back surfaces of the first connecting plate 3 and the second connecting plate 4 are in contact with the left side plate 2l and the right side plate 2r of the first speaker box 2, respectively, and The back surface is in contact with the back plate 2b of the first speaker box 2, and the whole forms a rectangular parallelepiped. Also, even in such a state, the first speaker 1, the second speaker 5, and the third speaker 7 are all facing outward, so
Although it is not possible to obtain a stereo effect, the sound output operation of the speakers can be performed without any problem.

In such a configuration, a large-diameter speaker that easily outputs mid-range and low-range signals is used as the first speaker 1, and a small-diameter speaker that easily outputs high-range and mid-range signals as the second speaker 5 and third speaker 7. You can get a good hearing experience by using these speakers. Further, since the volume of the first speaker box 2 can be increased, an amplifier or the like for amplifying the signal can be built inside the first speaker box 2.

(f) Effects of the invention The speaker device of the invention not only integrates speakers that emit left and right signals of a stereo signal and speakers that emit a signal located in the center, but also has the following advantages: Since it forms a rectangular parallelepiped when stored, it is extremely convenient to carry. In addition, the speaker box to which the left and right speakers are fixed is connected to the speaker box to which the center speaker is fixed via a connecting plate. The practicality of the present invention is very great because the distance between the speakers can be widened, and as a result, a good stereo sound can be obtained.

[Brief explanation of the drawing]

The drawings relate to the speaker device of the present invention, and FIG. 1 is a perspective view showing the used state, and FIG. 2 is a perspective view showing the stored state. Explanation of main drawing numbers, 1...1st speaker, 2...
...first speaker box, 3...first connection plate,
4...Second connection plate, 5...Second speaker, 6...
...Second speaker box, 7...Third speaker, 8...Third speaker box.

Claims (1)

[Scope of utility model registration request] In a speaker device comprising a first speaker that emits a signal located at the center of a stereo signal, and second and third speakers that emit signals located on the left and right sides, respectively, the first speaker is mounted on a front panel. a fixed first speaker box;
It is rotatably attached to the left and right ends of the front panel of the first speaker box, and its left and right lengths are approximately the same length in the front-rear direction of the left and right side panels of the first speaker box. a second speaker box rotatably attached to the left end of the first connecting plate and to which the second speaker is fixed; The third speaker box is rotatably attached to the right end of the second connecting plate and has the third speaker fixed thereto, and the first connecting plate, the second connecting plate, the second speaker box, and the third speaker box are rotatably attached to the right end of the second connecting plate. The rotational displacement of the three speaker boxes causes the back surfaces of the second speaker box and the third speaker box to come into contact with the back plate of the first speaker box, thereby making the first speaker box, the second speaker box, and the third speaker box A speaker device characterized in that it forms a rectangular parallelepiped.