JPH0563194U - Speaker system - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a speaker system capable of selectively using omnidirectionality and directivity and capable of reproducing surround sound and heavy bass. A speaker system in which speakers are arranged on the front and upper surfaces of a cabinet and a conical reflector 5 is arranged so as to face the speakers on the upper surface. The speaker 1 and the second speaker 2 for high frequency are arranged, the upper part of the cabinet is partitioned by the partition plate 12 to form the vacant chamber 11, and the vacant chamber is communicated with the outside by the duct 13, The third speaker 3 is arranged on the upper surface side so as to form a cavity.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker system in which speakers are arranged on the front side and the upper side of a cabinet and a conical reflector is arranged so as to face the speaker on the upper side. In particular, directivity and omnidirectional can be selected. In addition, the present invention relates to a speaker system capable of reproducing surround sound and deep bass.

[0002]

[Prior Art]

 As an example of a conventional omnidirectional speaker, as shown in FIG. 3, a treble speaker 23 is attached to the upper surface 21b side of a cabinet 21 in which a low frequency speaker 22 is attached to the front surface 21a side, and the upper surface 21b and A flat plate 24 is attached in parallel with an appropriate interval, and a conical reflector 25 having an apex angle of a right angle in cross section is attached to the flat plate 24 so as to face the above high-pitched loudspeaker 23 so that it does not exist in the plane. There is a directional speaker device.

[0003]

[Problems to be solved by the device]

 However, the speaker system shown in FIG. 3 has the drawback of lacking versatility because it can only be used with omnidirectional speakers.

An object of the present invention is to solve the above-mentioned drawbacks of conventional omnidirectional speakers and to provide a speaker system capable of selecting omnidirectionality and directivity.

[0005]

[Means for Solving the Problems]

 The speaker system of the present invention is a speaker system in which speakers are arranged on the front and upper surfaces of a cabinet, and a conical reflector is arranged so as to face the speaker on the upper surface. The first speaker and the second speaker for high frequency are arranged, and a partition plate forms an empty room at the upper part of the cabinet, and the empty room and the outside are connected by a duct, and the empty room is a cavity. The third speaker is arranged on the upper surface side of the cabinet. As the conical reflector, the lower housing is formed into a conical shape using the fourth speaker, and the housing is arranged so as to face the third speaker and faces the fourth speaker. The diffuser is arranged above so as to do so. Alternatively, a conical diffuser having an arc surface on the upper surface is arranged above the third speaker. Then, the conical reflector is supported by a plurality of columns that are obliquely projected from the upper surface of the cabinet. When the conical reflector is composed of a fourth speaker and a diffuser, the diffuser is slanted from the upper surface of the cabinet. The fourth speaker is supported by a plurality of pillars protruding from the ridge, and the fourth speaker is suspended from the diffuser.

[0006]

[Action]

 An empty room defined by a partition plate is provided in the upper part of the cabinet, and the empty room communicates with the outside by a duct, and a third speaker having this empty room as a cavity is arranged on the upper surface side of the cabinet. Since the conical reflector is provided on the front side of the cabinet, the third speaker becomes omnidirectional, and different audio signals can be input to the first to third speakers. When normal stereo reproduction is performed by the second speaker, the third speaker becomes a surround speaker. When the third speaker is used for normal stereo reproduction, the front first speaker can be used as a heavy bass reproduction speaker.

[0007]

【Example】

 As shown in FIG. 1 and FIG. 2, a first speaker 1 for bass and a second speaker 2 for treble are arranged on the front side of the cabinet 10. A partition plate 12 defines a vacant chamber 11 in the upper part of the cabinet 1, and the vacant chamber 11 communicates with the outside through a duct 13. The third speaker 3 having the cavity 11 as a cavity is arranged on the upper plate 14 side of the cabinet 1, and the conical reflector 5 is arranged on the front side thereof. As the conical reflector 5, in the embodiment shown in FIG. 1, a fourth speaker 4 in which a lower housing 4a is formed into a conical shape is used, and the fourth speaker 4 is arranged upward and further A diffuser 6 having a substantially elliptical shape is arranged on the upper side. In this case, the diffuser 6 is supported by a plurality of columns 7 that are obliquely projected from the top plate 14, and the columns 8 are hung from the diffuser 6 to support the fourth speaker 4 in a suspended state. There is.

Further, in the embodiment of FIG. 2, a conical diffuser 9 having an upper surface 9 a as an arc surface is arranged as the conical reflector 5, and similarly to FIG. 1, the support column 7 projected from the upper surface plate 14 is provided. The diffuser 9 is supported by and the omnidirectional speaker section is a full range speaker. In the figure, 15 is a duct formed on the back side of the cabinet body.

[0009]

[Effect of the device]

 According to the speaker system of the present invention, the upper part of the cabinet is provided with the vacant chamber defined by the partition plate, and the vacant chamber communicates with the outside by the duct. Is placed on the upper side of the cabinet and the conical reflector is on the front side, the third speaker becomes omnidirectional, and different audio signals can be input to the first to third speakers. Therefore, when normal stereo reproduction is performed by the first and second speakers on the front side of the cabinet, the third speaker becomes a surround speaker. When the third speaker is used for normal stereo reproduction, the front first speaker can be used as a heavy bass reproduction speaker. Therefore, omnidirectionality and directivity can be selectively used with one set of speaker systems, and surround and deep bass can be reproduced, and the function can be remarkably enhanced. In particular, in the example in which the fourth speaker is used as the conical reflector, the omnidirectionality in the upward direction can be secured, and the omnidirectionality can be further enhanced.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view of a speaker system according to the present invention.

FIG. 2 is a partial cross-sectional side view showing another configuration example of the speaker system according to the present invention.

FIG. 3 is a partially removed cross-sectional side view showing an example of a conventional omnidirectional speaker.

[Explanation of symbols]

 1 is a first speaker 2 is a second speaker 3 is a third speaker 4 is a fourth speaker 4a is a housing of a fourth speaker 5 is a conical reflector 6 is a diffuser 7 is a column 9 is a diffuser 10 is a cabinet 11 is a vacant room 12 is a partition plate 13 is a duct 14 is a top plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Eiji Shibuya 2-17-5 Shibuya, Shibuya-ku, Tokyo Inside Kenwood Co., Ltd.

Claims (5)

[Scope of utility model registration request] 1. A speaker system in which speakers are arranged on the front side and the upper side of a cabinet, and a conical reflector (5) is arranged so as to face the speaker on the upper side, the front side of the cabinet (1) being provided. First for bass placed
Room (11) having a loudspeaker (1), a second loudspeaker (2) also arranged on the front side, and a duct (13) which is partitioned and formed in the upper part of the cabinet and communicates with the outside. And a third speaker (3) arranged on the upper surface side so that the empty space serves as a cavity. 2. A fourth speaker (4) having a conical casing (9a) facing a third speaker (3) at a lower part thereof, the conical reflector (5) being the fourth speaker. 2. The speaker system according to claim 1, wherein a diffuser (6) is arranged so as to face the. 3. A reflective cone (5) having an arcuate surface (9a) on its upper surface.
Speaker system according to claim 1, characterized in that it is a conical diffuser (9) with. 4. The conical reflector (5) comprises a cabinet (1).
The speaker system according to claim 1, wherein the speaker system is supported by a plurality of columns (7) obliquely provided from the upper surface of the speaker. 5. The diffuser (6) is supported by a plurality of columns (7) obliquely provided from the upper surface of the cabinet (1), and the fourth speaker (4) is suspended from the diffuser (6). The speaker system according to claim 2, wherein the speaker system is supported by.