WO2014162476A1

WO2014162476A1 - Speaker cabinet

Info

Publication number: WO2014162476A1
Application number: PCT/JP2013/059977
Authority: WO
Inventors: 天伸斉藤; 晴樹武田
Original assignee: パイオニア株式会社; 東北パイオニア株式会社
Priority date: 2013-04-01
Filing date: 2013-04-01
Publication date: 2014-10-09

Abstract

Provided is a speaker cabinet which undergoes reduced vibration when speaker devices therein emit sound. The speaker cabinet (1) has three speaker devices (11) arranged in the X direction and emits sound in the Y direction, and attachment parts (14) for attaching the speaker cabinet to a television (T) are provided in a plane (S1) that includes the center of gravity (O) of the speaker cabinet (1) and that is perpendicular to the Y direction.

Description

Speaker cabinet

The present invention relates to a speaker cabinet provided with a plurality of speaker devices.

2. Description of the Related Art Conventionally, a speaker cabinet provided with a speaker device has been proposed in which a speaker cabinet is attached to a main body as an attachment target via an elastic member (see, for example, Patent Document 1). In the conventional speaker cabinet described in Patent Document 1, the speaker cabinet is in contact with the main body through the elastic member only at the mounting portion, and the other part of the speaker cabinet is separated from the main body, so that the speaker device can be It is suppressed that the vibration when radiating is transmitted to the main body.

JP 2012-191529 A

However, in the conventional speaker cabinet described in Patent Document 1, since the attachment portion is attached to the main body via the elastic member, it is suppressed that vibration is transmitted to the main body when the speaker device emits sound. However, there is a problem that the speaker cabinet itself vibrates.

An object of the present invention is to provide a speaker cabinet that can suppress vibration of itself when the speaker device radiates sound.

In order to solve the above-described problems and achieve the object, the speaker cabinet of the present invention according to claim 1 is a speaker cabinet that includes a plurality of speaker devices and is attached to an attachment target, and is attached to the attachment target. The plurality of attachment portions are characterized in that they are located on a plane that includes the center of gravity of the entire speaker cabinet and is substantially perpendicular to the sound radiation direction of the plurality of speaker devices.

It is a perspective view which shows the television provided with the speaker cabinet which concerns on embodiment of this invention. It is a perspective view which shows the whole said speaker cabinet. It is a top view which shows the said speaker cabinet. It is a front view which shows the said speaker cabinet. It is a perspective view which shows the attachment structure to the said television of the said speaker cabinet. It is a perspective view which shows the whole speaker cabinet which concerns on the modification of this invention. It is a perspective view which shows the whole speaker cabinet which concerns on the modification of this invention. It is a perspective view which shows the whole speaker cabinet which concerns on the modification of this invention.

Hereinafter, embodiments of the present invention will be described. A speaker cabinet according to an embodiment of the present invention is a speaker cabinet that includes a plurality of speaker devices and is attached to a mounting target, and includes a plurality of mounting portions for mounting to the mounting target, and the plurality of mounting portions include: The speaker cabinet is located on a plane that includes the center of gravity of the entire speaker cabinet and is substantially perpendicular to the sound radiation direction of the plurality of speaker devices.

As a result, when the speaker device radiates sound, the entire speaker cabinet attempts to vibrate in the sound radiation direction with the center of gravity as the center, but the plurality of mounting portions are located on a plane that includes the center of gravity and is perpendicular to the sound radiation direction. Thus, by attaching the speaker cabinet to the attachment target, vibration in the attachment portion can be suppressed, and vibration of the entire speaker cabinet can be suppressed. Moreover, since the vibration of the speaker cabinet is suppressed, the strength required for the mounting is reduced, and the mounting portion can be reduced in size.

It is preferable that the plurality of attachment portions include at least a pair of attachment portions provided at point-symmetric positions with respect to the center of gravity. As a result, when the speaker device emits sound and the entire speaker cabinet is about to vibrate, a force acts equally on the pair of attachment portions, and vibrations in the attachment portions can be further suppressed.

It is preferable that the plurality of mounting portions are composed of an even number and are paired at point-symmetric positions with the center of gravity as the center. Thereby, the vibration in all the attaching parts can be further suppressed as described above.

It is preferable that the plurality of attachment portions have intermediate attachment portions provided between the plurality of speaker devices. Thereby, the speaker cabinet is supported near the center of gravity by the intermediate mounting portion, and the support strength when the speaker cabinet is mounted can be improved.

It is preferable that the intermediate mounting portion is composed of an even number and is paired at a point-symmetrical position with the center of gravity as the center. Thereby, the vibration in all the intermediate attachment parts can be further suppressed as described above.

The plurality of speaker devices are arranged in a straight line, and the plurality of speaker devices are notched in a width direction orthogonal to the arrangement direction of the plurality of speaker devices and the sound radiation direction, and the intermediate It is preferable that the recessed part provided with the attaching part is formed. By providing the intermediate mounting portion in the concave portion cut out in the width direction, the size in the width direction of the entire speaker cabinet can be reduced.

It is preferable that an end portion of the intermediate mounting portion in the width direction is disposed in the concave portion. Thereby, an intermediate attachment part can be provided without enlarging the width direction dimension of the whole speaker cabinet.

It is preferable that the plurality of speaker devices include at least a pair of speaker devices provided at plane-symmetric positions with a plane parallel to the sound radiation direction as a plane of symmetry while including the center of gravity. Thereby, the two forces that try to vibrate the speaker cabinet generated when sound is radiated from a pair of speaker devices work at a plane-symmetric position with the plane including the center of gravity and parallel to the sound radiation direction as the symmetry plane, A force is applied equally to each mounting portion, and vibrations in the mounting portion can be further suppressed.

It is preferable that the speaker devices provided in plane-symmetrical positions with a plane including the center of gravity and parallel to the sound radiation direction as a plane of symmetry are the same speaker devices. As a result, the force to vibrate the speaker cabinet generated when sound is radiated from a pair of identical speaker devices acts at a plane-symmetrical position with the plane including the center of gravity and parallel to the sound radiation direction as the plane of symmetry. They have substantially the same size, and a force is applied equally to each mounting portion, so that vibration in the mounting portion can be further suppressed.

The plurality of mounting portions preferably have the same shape. Thereby, the attachment structure to the attachment object of a speaker cabinet can be made common, the way of the force in each attachment part can be made substantially the same, and cost can be reduced.

The plurality of attachment portions may be attached to the attachment object via an elastic member. Thereby, when a speaker apparatus radiates | emits a sound, it can suppress that a vibration is transmitted to an attachment object from a speaker cabinet.

Hereinafter, an embodiment of the present invention will be specifically described. FIG. 1 is a perspective view showing a television provided with a speaker cabinet according to an embodiment of the present invention, FIG. 2 is a perspective view showing the whole of the speaker cabinet, and FIG. 3 is a top view showing the speaker cabinet. FIG. 4 is a front view showing the speaker cabinet, and FIG. 5 is a perspective view showing a mounting structure of the speaker cabinet to the television.

As shown in FIG. 1, the television T is configured to include a display unit V and a speaker cabinet 1 provided below the display unit V and including three speaker devices 11. In the present embodiment, the arrangement direction of the speaker devices 11 is the X direction, the sound emission direction of the speaker devices 11 is the Y direction, the width direction of the speaker cabinet 1 is the Z direction, and the X direction, the Y direction, and the Z direction are As shown in FIG. 1, front, rear, left, right, up and down are based on FIG. Here, the television T is installed so that the Z direction is substantially perpendicular to the vertical direction.

As shown in FIG. 2, the speaker cabinet 1 includes three speaker devices 11 provided on the front side in the Y direction, and bass reflex holes 12 provided on the front side in the Y direction and provided at substantially the center in the X direction and the Z direction. And a mounting portion 14 for mounting to the television T, and a recess 13 cut out in the Z direction is formed between the speaker devices 11.

The mounting portion 14 includes an intermediate mounting portion 14a provided in the recess 13 and left and right mounting portions 14b provided on the left and right in the X direction. Each attachment portion 14 has substantially the same shape, and an attachment hole 141 for attachment to the television T is formed by a screw. Further, as shown in FIG. 3, each mounting portion 14 is located on a plane S1 including the center of gravity O and parallel to the XZ plane. Furthermore, as shown in FIG. 4, the upper left intermediate mounting portion 14a and the lower right intermediate mounting portion 14a, the upper right intermediate mounting portion 14a and the lower left intermediate mounting portion 14a, and the two left and right mounting portions 14b are respectively It is provided at a point-symmetrical position around the center of gravity O and has a point-symmetrical shape. The intermediate mounting portion 14a is provided without protruding in the Z direction from the recess 13 (that is, the end portion of the intermediate mounting portion 14a in the Z direction is disposed in the recess 13).

With the above configuration, when the speaker device 11 emits sound, the speaker cabinet 1 tries to vibrate in the Y direction around the center of gravity O, but the speaker cabinet 1 is attached to the television T by the mounting portion 14 located on the plane S1. By being attached, vibration is unlikely to occur in the attachment portion 14, and vibration of the entire speaker cabinet 1 can be suppressed. Further, since the plane S1 is parallel to the XZ plane, that is, substantially parallel to the vertical direction, the force applied to each mounting portion 14 by the gravity acting on the entire speaker cabinet 1 can be minimized, and the television of the speaker cabinet 1 can be reduced. The fixing strength to T can be improved, and vibration of the entire speaker cabinet 1 when the speaker device 11 emits sound can be further suppressed.

Also, the support strength when the speaker cabinet 1 is attached to the television T can be improved by providing the intermediate attachment portion 14a having a smaller distance to the center of gravity O than the left and right attachment portions 14b.

Further, since the six attachment portions 14 are provided in pairs at point-symmetric positions with the center of gravity O as the center, when the speaker device 11 radiates sound, the attachment portions 14 that make a pair A force acts evenly on the mounting portion 14 and vibrations in the mounting portion 14 can be suppressed.

In addition, the concave portion 13 is formed in the speaker cabinet 1 and the intermediate mounting portion 14a is provided without protruding from the concave portion 13 in the Z direction, thereby preventing the size of the speaker cabinet 1 from increasing in the Z direction. Can do.

The speaker device 11 includes a left speaker device 11A, a center speaker device 11B, and a right speaker device 11C, and has substantially the same dimensions and weight. Further, the left and right speaker devices 11A and 11C have substantially the same shape, and as shown in FIG. 4, are plane-symmetrical positions with a plane S2 including the center of gravity O of the entire speaker cabinet 1 and parallel to the YZ plane as a symmetry plane. In other words, the centers OA and OC of the speaker devices 11A and 11C and the center of gravity O are separated by an approximately equal distance in the X direction.

Due to the above configuration, the left and right speaker devices 11A, 11C having substantially the same shape are provided in plane-symmetrical positions with the plane S2 as a symmetry plane, so that sound is emitted from the speaker devices 11A, 11C. The force to vibrate the speaker cabinet 1 has substantially the same magnitude in plane symmetry with the plane S2 as a plane of symmetry, and the force acts equally on each mounting portion 14, and the vibration at the mounting portion 14 is vibrated. It can be further suppressed.

Next, a structure for mounting the speaker cabinet 1 to the television T will be described. As shown in FIG. 5, a screw hole H is formed at a position corresponding to each mounting portion 14 in the television T, and each mounting portion 14 is sandwiched in the Y direction by the rubber bush 2 as an elastic member. The screw 3 is attached to the screw hole H. This attachment structure is common to each attachment portion 14.

With the above configuration, vibration generated when the speaker device 11 emits sound is absorbed by the rubber bush 2, and vibration transmitted to the television T can be suppressed. Moreover, since each attachment part 14 has a common attachment structure, the structure of the rubber bush 2, the screw 3, the screw hole H, etc. can be made common, and cost can be reduced.

It should be noted that the present invention is not limited to the above-described embodiment, and includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention. For example, in the said embodiment, although the attaching part 14 shall be provided with the right-and-left attaching part 14b, the left-right attaching part 14b may be abbreviate | omitted as shown in FIG.

In the embodiment, the speaker cabinet 1 includes the three speaker devices 11. However, the speaker cabinet 1 may include two speaker devices or four or more speaker devices. When the speaker cabinet 1 includes two speaker devices, the configuration may be such that the central speaker 11B is omitted as shown in FIG. 7, and only one pair of intermediate mounting portions 14a is provided as shown in FIG. The provided structure may be sufficient. Moreover, the attachment part 14 should just be provided by an appropriate number based on the weight of the whole speaker cabinet 1 and the vibration when the speaker device radiates sound. By increasing the number of attachment parts 14, the speaker cabinet 1 can be reliably supported on the television T. On the other hand, by reducing the number of mounting portions 14, the number of parts can be reduced and the configuration can be simplified and the cost can be reduced.

Further, in the above-described embodiment, each mounting portion 14 is provided as a pair at a point-symmetrical position with the center of gravity O as the center. However, the mounting portion 14 is disposed at an arbitrary position on the plane S1 passing through the center of gravity. It only has to be.

In the embodiment, the speaker devices 11 have substantially the same size and weight, and the left and right speaker devices 11A and 11C have substantially the same shape, and are provided in plane symmetry positions with the plane S2 as a symmetry plane. However, the speaker devices 11 may have different sizes, weights, and shapes, and any suitable device may be used depending on the purpose of use.

In the above embodiment, the attachment portion 14 is sandwiched between the rubber bush 2 and attached to the screw hole H of the television T. However, the rubber bush 2 is provided only between the attachment portion 14 and the television T. May be. Further, it is only necessary to provide an appropriate cushioning material for suppressing vibration transmitted to the television T when the speaker device 11 radiates sound.

In the above embodiment, each speaker device 11 has the X direction as the arrangement direction and the Y direction as the sound radiation direction, but the average sound radiation direction of each speaker device 11 is referred to as “sound” in the present invention. The speaker device 11 may be provided at an arbitrary position in an arbitrary direction as long as the mounting portion 14 is arranged on the plane S1 in the Y direction in the “radiation direction”. Here, the average sound radiation direction means the sum of vectors when the sound radiation directions of the respective speaker devices 11 are represented by vectors.

Moreover, in the said embodiment, although the speaker cabinet 1 shall be attached to the television T as an attachment object, the attachment object may be a display for personal computers, and it is on the wall of a building with a display part independently. It may be attached.

In addition, the best configuration and method for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations. Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

DESCRIPTION OF SYMBOLS 1 Speaker cabinet 11 Speaker apparatus 13 Concave part 14 Attachment part 14a Intermediate attachment part 2 Rubber bush (elastic member)

Claims

A speaker cabinet provided with a plurality of speaker devices and attached to an attachment target,
A plurality of mounting portions for mounting on the mounting target,
The plurality of mounting portions include a center of gravity of the entire speaker cabinet and are located on a plane substantially perpendicular to the sound radiation direction of the plurality of speaker devices.
2. The speaker cabinet according to claim 1, wherein the plurality of attachment portions are configured to have at least a pair of attachment portions provided at point-symmetric positions with respect to the center of gravity.
2. The speaker cabinet according to claim 1, wherein the plurality of mounting portions are configured by an even number and are paired at positions that are point-symmetric with respect to the center of gravity.
The speaker cabinet according to claim 1, wherein the plurality of attachment portions include intermediate attachment portions provided between the plurality of speaker devices.
The speaker cabinet according to claim 4, wherein the intermediate mounting portion is configured by an even number and is paired at a point-symmetrical position with respect to the center of gravity.
The plurality of speaker devices are arranged in a straight line,
Between the plurality of speaker devices, a recess is formed that is cut out in a width direction orthogonal to the arrangement direction of the plurality of speaker devices and the sound radiation direction and provided with the intermediate mounting portion. The speaker cabinet according to claim 4.
The speaker cabinet according to claim 6, wherein an end portion of the intermediate mounting portion in the width direction is disposed in the concave portion.
The plurality of speaker devices are configured to include at least a pair of speaker devices provided in plane-symmetric positions with a plane including the center of gravity and parallel to the sound radiation direction as a plane of symmetry. The speaker cabinet according to claim 1.
9. The speaker cabinet according to claim 8, wherein the speaker devices that are provided in plane symmetry with the plane including the center of gravity and parallel to the sound radiation direction as planes of symmetry are the same speaker devices.
The speaker cabinet according to claim 1, wherein the plurality of attachment portions have the same shape.
The speaker cabinet according to claim 1, wherein the plurality of attachment portions are attached to the attachment target via an elastic member.