JP2001157294A - Center unit and speaker system for home theater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain design unification in a contained state of a surround speaker into a center unit by designing the surround speaker independently of the center unit and simply containing the surround speaker into the center unit. SOLUTION: In a center unit 2 where left right speakers 11, 12 and a center speaker 13 and unified, left right surround speakers 17, 18 are mounted to both left right side faces of the center unit 2 by coupling means 16, 16', 19, 20 in an engaged/disengaged way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center unit in which left and right surround speakers are detachably attached to a center unit in which left and right speakers and a center speaker are integrated via engagement means. The present invention relates to a home theater loudspeaker system using the same.

[0002]

2. Description of the Related Art In recent years, with the spread of DVDs (Digital Video Disks), speaker systems for home theater have been spreading. In the home theater speaker system, the surround channels (channels) are converted to stereo to provide a total of 5 channels, and a 0.1-channel low-frequency sound effect is added, so that a total of 5.1 channels of sound can be independently reproduced. The same high-quality surround sound as in a movie theater is also possible at home, and you can get the power and realism as if you were in a movie theater.

FIG. 6 is a schematic configuration diagram showing an example of such a home theater speaker system. The home theater speaker system 41 is roughly composed of a center unit 42, a woofer unit 43, and left and right surround speaker boxes 44 and 45.

For example, a signal from a DVD player 49 or the like is input to an input terminal of a center unit 42 mounted on a television receiver 47. A left speaker 51 and a center speaker 5 are provided in front of the center unit 42.
2. A right speaker 53 is provided. The left and right surround speaker boxes 44 and 45 incorporate left and right surround speakers 56 and 57, respectively, and the left and right surround speaker boxes 44 and 45 are supported by a speaker stand 58, respectively. Furthermore, the woofer speaker 43 is built in the woofer unit 43.

[0005]

In the home theater speaker system described above, the left and right surround speaker boxes 44 and 45 are connected to the center unit 4.
Surround speaker boxes 44 and 4 when the home theater speaker system is not used.
5 cannot be integrated and stored in the center unit 42, which is inconvenient to store. Further, a surround speaker box 44, adjacent to the center unit 42,
Even if 45 is placed, there is a problem that it is not fixed and unstable, and that it is irregular in design and does not fit neatly.

The left and right surround speaker boxes 4
4 and 45 are integrated with the center unit 42, the left and right surround speaker boxes 4
4 and 45 cannot be freely arranged, and therefore, there is no freedom of arrangement of the surround speakers, which is a hindrance in obtaining a sense of realism.

Therefore, the present invention provides a center unit in which the surround speaker box is made independent of the center unit, the surround speaker box can be easily stored in the center unit, and the design of the center unit at the time of storage is unified. It is an object of the present invention to provide a speaker system for a home theater.

[0008]

A center unit according to the present invention is a center unit in which left and right speakers and a center speaker are integrated, wherein left and right surround speakers are respectively engaged with left and right sides of the center unit by engagement means. It is characterized by being detachably mounted.

A home theater speaker system according to the present invention is a home theater speaker system comprising left and right speakers, a center speaker, left and right surround speakers, and a woofer speaker. The left and right surround speakers are detachably mounted on both side surfaces by engaging means.

In the center unit according to the present invention, the left and right surround speakers are respectively mounted on the left and right side surfaces of the center unit so as to be disengageable by the engagement means.
The left and right surround speakers are engaged with the center unit, and can be integrated and stored neatly. Further, the left and right surround speakers can be detached from the center unit and can be freely arranged, thereby further increasing the sense of realism.

In the home theater speaker system according to the present invention, since the left and right surround speakers are respectively mounted on the left and right side surfaces of the center unit in which the left and right speakers and the center speaker are integrated so as to be disengageable by the engagement means. The left and right surround speakers can be engaged with the center unit and integrated and stored neatly, or the left and right surround speakers can be detached from the center unit and arranged freely.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a home theater speaker system according to the present invention will be described below with reference to the drawings. In a home theater speaker system,
The surround channels are stereo converted to a total of 5 channels, and a 0.1-channel low-frequency sound effect is added, so that a total of 5.1 channels of sound can be reproduced independently. For this reason, in the home theater speaker system, the same high-quality sound as that of a movie theater can be achieved at home, and the power and realism as if in a movie theater can be obtained.

FIG. 1 is a schematic structural view of a home theater speaker system according to the present invention. The home theater speaker system 1 includes a center unit main body 2, a woofer unit 3, and left and right surround speaker boxes 5 and 6 that can be attached to and detached from the center unit main body 2.

In the present invention, the left and right surround speaker boxes 5 and 6 are detachably provided on the center unit main body 2 so that the left and right surround speaker boxes 5 and 6 can be arranged at any position with convenience of storage. is there.

The center unit main body 2 is mounted on, for example, a television receiver 7, and a signal from a DVD player 9 or the like is input to an input terminal. On the front panel 10 of the center unit main body 2, a left speaker 11 and a right speaker 12 are arranged on the left and right sides, respectively, and a center speaker 13 is arranged in the center. For example, an operation unit 14 for operating the center unit 2 is provided between the center speaker 13 and the right speaker 12 on the front panel 10. On both left and right sides of the center unit main body 2, engagement portions 16, 16 'for engaging with the left and right surround speaker boxes 5, 6 are provided, respectively.

The left and right surround speaker boxes 5 and 6 contain left and right surround speakers 17 and 18, respectively, and engaging portions 19 and 20 for engaging with the center unit body 2 are provided on the respective side surfaces. I have. Further, the woofer unit 3 includes a woofer speaker 2.
2 are built-in. The engaging portions 16 and 16 'of the center unit main body 2 and the engaging portions 19 and 20 of the left and right surround speaker boxes 5 and 6 will be described later in detail.

FIG. 2 is a block diagram of a home theater speaker system according to the present invention. The input signal from the DVD player 9 is transmitted to the preamplifier 2 of the center unit 2.
5 and processed. The preamplifier 25 performs an amplification process so as to increase the level until a power amplifier 28 and a woofer amplifier 29 described later can operate. The signal amplified and processed by the preamplifier 25 is restored to 5.1ch by the 5.1ch decoder 26. Of the signals restored by the 5.1ch decoder 26, the 5ch signal is input to the power amplifier 28 of the woofer unit 3, amplified by the power amplifier 28, and processed by the left and right speakers 1 of the center unit 2.
1, 12 and center speaker 13 and left and right surround speakers 1 of left and right surround speaker boxes 5, 6
It is output as a sound from 7 and 18.

On the other hand, of the signals restored by the 5.1ch decoder 26, the 0.1ch signal, which is a low-frequency sound effect, is amplified by a woofer amplifier 29 for driving a woofer speaker 22 of the woofer unit 3, and is amplified. The sound is output from the speaker 22.

Next, the engaging portions 16 and 16 'of the center unit body 2 and the engaging portions 19 and 20 of the left and right surround speaker boxes 5 and 6, which are the engaging means, will be described.
Since the engaging portions 16, 16 'of the center unit main body 2 have the same shape, the engaging portions 1 on the right side surface of the center unit main body 2 are formed.
Only 6 'will be described. FIG. 3 is a side view of the center unit main body. A speaker cover 31 is mounted on the front panel 10 of the center unit body 2.
A rectangular engaging groove 32 is engraved on a side surface of the center unit main body 2, and pressing plate portions 33 are vertically protruded from upper and lower edges of the rectangular engaging groove 32, respectively. In the center of the rear part of the rectangular engaging groove 32, a small rectangular groove 35 is further engraved,
An engagement protrusion 36 is supported in the small rectangular groove 35 so as to be able to protrude and retract.

The engaging projection 36 has a front inclined surface 36a and a projection 36 serving as a locking means provided on the top of the inclined surface 36a.
b, and is urged in a projecting direction by elasticity. When the engaging protrusion 36 is in the protruding state, the protrusion 36 b projects into the rectangular engaging groove 32. That is, the engaging portion 16 ′ is constituted by the rectangular engaging groove 32, the pair of holding plate portions 33, the small rectangular groove 35, and the engaging protrusion 36.

Since the left and right surround speaker boxes 5 and 6 have the same shape, only the right surround speaker box 6 will be described. FIG. 4 is a side view of the right surround speaker box 6 on the engagement portion 20 side. A speaker cover 37 is mounted on the front of the right surround speaker box 6. A pair of engaging projections 38 are provided side by side on the side surface of the right surround speaker box 6 so as to extend in the front-rear direction and at predetermined intervals in the vertical direction.

Behind the portion between the pair of engaging projections 38, a projection 36 of the engaging projection 36 of the center unit body 2 is provided.
A projection 39 having an engagement groove 39a as a locking means for engaging with the projection b is provided. The pair of engagement projections 38 engage with the rectangular engagement grooves 32 of the center unit main body 2,
The pair of holding plate portions 33 prevent left-right removal. That is, the engaging portion 20 is constituted by the pair of engaging protrusions 38 and the protrusion 39.

Next, the engaging portion 1 of the center unit body 2
The manner in which the engaging portions 19 and 20 of the left and right surround speaker boxes 5 and 6 are engaged with each other to be integrated will be described. First, the front ends of the pair of engaging projections 38 of the engaging portion 20 of the right surround speaker box 6 are inserted into the rear end of the engaging groove 32 of the engaging portion 16 'of the center unit main body 2, and the right surround speaker box is inserted. Slide 6 forward.
When the tips of the pair of engaging projections 38 of the right surround speaker box 6 come into contact with the front ends of the engaging grooves 32, the pair of engaging projections 38 are removed in the left-right direction by the pair of pressing plate parts 33. At the same time, the projection 36b of the engagement projection 36 of the center unit main body 2 is pushed into the projection 39 of the right surround speaker box 6 while the engagement groove 39 of the projection 39 is being pressed.
a, the right surround speaker box 6 is prevented from falling off in the front-rear direction.

The engagement between the engaging portion 16 of the center unit main body 2 and the engaging portion 19 of the left surround speaker box 5 is the same as described above. In this way, as shown in FIG. 5, the left and right surround speaker boxes 5, 6 are engaged with and integrated with the left and right sides of the center unit main body 2, respectively.

The left and right surround speaker boxes 5 and 6 are engaged with and integrated with the left and right sides of the center unit body 2, respectively.
For example, when the right surround speaker box 6 is slid backward, the right surround speaker box 6
The engagement between the pair of engaging projections 38 and the pair of pressing plates 33 of the center unit body 2 is released, and at the same time, the engagement grooves 39a of the projections 39 of the right surround speaker box 6 and the center unit body 2 The engagement of the engagement projection 36 with the projection 36 b is released, and the right surround speaker box 6 is detached from the center unit main body 2. In this way, the left and right surround speaker boxes 5 and 6 can be detached from the center unit main body 2 and can be freely arranged.

Therefore, the engaging portions 16 and 16 'are provided on the left and right sides of the center unit body 2, respectively, and the engaging portions 19 and 16 are provided on the left and right surround speaker boxes 5 and 6, respectively.
20 are provided, the engaging portions 16, 16 'of the center unit main body 2 and the engaging portions 19, 20 of the left and right surround speaker boxes 5, 6 can be engaged and integrated, and the left and right surround speaker boxes can be integrated. 5 and 6 can be stored in a very simple and clean form, and the design can be unified at the time of storage.

The engaging portion 1 of the center unit body 2
When the engagement between the left and right surround speaker boxes 5 and 6 and the engagement portions 19 and 20 of the left and right surround speaker boxes 5 and 6 are released, the left and right surround speaker boxes 5 and 6 can be freely arranged, increasing the degree of freedom of arrangement. Realism can be further increased.

In the above-described embodiment, the left and right surround speaker boxes 5 and 6 are slid and engaged with the center unit body 2 in the front-rear direction. However, the present invention is not limited to this. On the other hand, the left and right surround speaker boxes 5 and 6 may be slidably engaged with each other in the vertical direction, may be engaged by a link member, or may be detachably attached by other engaging means. .

The input from the DVD player to the center unit main body 2 is not limited to this, but is limited to an LD (laser disk) player or a CD (compact disk).
Needless to say, the data may be input to the center unit main body 2 from another disc player such as a player.

Although the 5.1 channel decoder 26 is provided in the center unit main body 2, the present invention is not limited to this.
6 may be provided on the woofer unit 3. Further, although the power amplifier 28 is provided in the woofer unit 3, the invention is not limited thereto, and the power amplifier 28 may be provided in the center unit main body 2.

[0031]

As described above, according to the present invention,
Since the left and right surround speakers are detachably mounted on the left and right sides of the center unit by the engagement means, the left and right surround speakers can be engaged with the center unit and integrated and securely housed. Further, the design can be unified at the time of storage, and the beauty can be improved clearly.

When the left and right surround speakers are detached from the center unit, the left and right surround speakers can be freely arranged, so that the degree of freedom of arrangement can be increased and the sense of presence can be further increased.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a home theater speaker system according to the present invention.

FIG. 2 is a block diagram of a speaker system for a home theater according to the present invention.

FIG. 3 is a side view of a center unit main body.

FIG. 4 is a side view of an engagement portion of the right surround speaker box.

FIG. 5 is a front view of a state where left and right surround speaker boxes are mounted on the center unit main body.

FIG. 6 is a schematic device configuration diagram showing an example of a conventional home theater speaker system.

[Description of Signs] 1 Home theater speaker system 2 Center unit main unit (center unit) 3 Woofer unit 5 Left surround speaker box 6 Right surround speaker box 9 DVD player 11 Left speaker 12 Right speaker 13 Center speaker 16, 16 ' (Engaging means) 17 left surround speaker 18 right surround speaker 19 engaging part (engaging means) 20 engaging part (engaging means) 22 woofer speaker 25 preamplifier 26 5.1ch decoder 28 power amplifier 29 woofer amplifier 36 engagement protrusion Portion 36b Projection (locking means) 39 Projection 39a Engagement groove (locking means)

Continuation of the front page (72) Inventor Noriyuki Mumu 1-2-1-11 Ikenoba, Taito-ku, Tokyo F-term in Iwa Corporation (reference) 5D062 BB03

Claims (3)

[Claims] 1. A center unit in which left and right speakers and a center speaker are integrated, wherein left and right surround speakers are respectively mounted on left and right side surfaces of the center unit so as to be disengageable by engagement means. Center unit. 2. The center unit locks the left and right surround speakers and the center unit when the left and right surround speakers are engaged with the left and right side surfaces of the center unit by the engagement means and are in a storage position. The center unit according to claim 1, further comprising a locking unit that can perform locking. 3. A speaker system for a home theater comprising left and right speakers, a center speaker, left and right surround speakers, and a woofer speaker, wherein the left and right surround speakers are respectively connected to left and right sides of a center unit in which the left and right speakers and the center speaker are integrated. A speaker system for a home theater, wherein the speaker system is detachably mounted by a joining means.