JPH0623394U - Speaker - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a speaker provided with a stand that does not hinder vibration of a speaker cabinet made of musical instrument material or the like. [Structure] The speaker cabinet 10 is composed of a material (material for musical instrument resonance portion) used for a body of a guitar or the like. The speaker unit 11 is attached to the center of the front plate 10A of the speaker cabinet 10. Then, the speaker cabinet 10 is placed on the cylindrical stand 15. Since the speaker cabinet 10 and the stand 15 are in line contact with each other, the contact area between them is extremely small. Therefore, the vibration of the speaker cabinet 10 is not disturbed, and the speaker cabinet 10 emits a sound peculiar to the material for the musical instrument resonance portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker, and more particularly to a speaker provided with a stand for supporting a speaker cabinet made of a material used for a resonance part of a musical instrument in the vicinity of a node of vibration or a position where the amplitude is small.

[0002]

[Prior art]

 In the case of conventional speakers, the box-type speaker cabinet in which the speaker is installed has a structure that suppresses the vibration of the speaker cabinet itself as much as possible in order to prevent generation of unnecessary sound. The stand supporting the speaker cabinet was also box-shaped, and was in surface contact with the bottom plate of the speaker cabinet.

[0003]

[Problems to be solved by the device]

 However, in the case of a speaker that obtains excellent timbre by utilizing the vibration of the speaker cabinet made of the musical instrument resonance part, if the speaker cabinet and the stand are in surface contact, the vibration of the speaker cabinet is disturbed. Will end up. As a result, there arises a problem that the tone color emitted from the speaker cabinet is adversely affected.

[0004]

[The purpose of the device]

 Then, this invention aims at providing the speaker provided with the stand which does not inhibit the vibration of the speaker cabinet which consists of musical instrument materials.

[0005]

[Means for Solving the Problems]

 A loudspeaker according to a first aspect of the present invention is a loudspeaker cabinet having a material for a musical instrument resonance portion, a loudspeaker unit attached to the loudspeaker cabinet, and a stand for supporting the loudspeaker cabinet at a position near a vibration node or a small amplitude. , Are included.

[0006]

[Action]

 In the speaker according to the invention as set forth in claim 1, since the speaker cabinet is made of the material for the resonance part of the musical instrument, the timbre emitted from the entire speaker cabinet has excellent timbre peculiar to the musical instrument. is there. The speaker cabinet is supported by a stand near the node of vibration or at a position where the amplitude is small. Therefore, it is possible to prevent the vibration of the speaker cabinet from being disturbed.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of a speaker 1 according to a first embodiment of the present invention. The speaker 1 is a so-called closed type, and includes a speaker cabinet 10, a speaker unit 11, and a stand 15. The speaker cabinet 10 has a hollow cylindrical shape and is made of a material (material for musical instrument resonance portion) used for a guitar body (instrument resonance portion) or the like. That is, the front plate 10A and the back plate 10B are made of German pine, Ezo pine, etc., and the side plate 10C is made of maple, cypress, birch, kayak, Micamore and the like. A circular hole is provided in the center of the front plate 10A, and the speaker unit 11 is fixed to the front plate 10A so as to fit into the hole. The speaker unit 10A is a so-called full-range type, but it is also possible to use a coaxial type. It has been confirmed that the cylindrical speaker cabinet 10 according to the present embodiment produces sound more naturally than the rectangular speaker cabinet.

The stand 15 that supports the speaker cabinet 10 has a cylindrical shape, and an opening (open end) is provided at the upper end thereof. The speaker cabinet 10 is mounted on the open end of the stand 15. That is, the speaker cabinet 10 and the stand 15 are in line contact with each other. Since the contact area between the two is extremely small, the speaker cabinet 10 is not disturbed by vibrations, and sound is emitted from the entire speaker cabinet 10.

Therefore, according to the speaker 1 of the present embodiment, the following effects can be obtained. That is, the vibration of the speaker unit 11 causes the entire speaker cabinet 10 to vibrate. Since the speaker cabinet 10 is made of a material for a musical instrument resonance part used for a violin or a body of a guitar, the speaker cabinet 10 can be emitted in various directions like a musical instrument while utilizing the timbre of the musical instrument material. The speaker cabinet 10 has a relatively small size (for example, a diameter of about 20 cm and a depth of about 12 cm) and a thin plate thickness (2 to 4 mm), so that it is possible to reproduce an extremely realistic sound. . In particular, the sound of musical instruments such as classical guitar and lute can be played back realistically with one speaker. In addition, since sound waves propagate from the speaker 1 in various directions while interfering with each other, when two speakers 1 are used, the sound of each musical instrument is clearly localized, which can be obtained with a conventional stereo speaker. It is possible to realize the unprecedented sound spread.

2A to 2D show a speaker and its stand according to a second embodiment of the present invention. 2A is a perspective view showing a cylindrical speaker 2 supported by a stand, and FIG. 2B is a side view of the speaker 2. The speaker 2 is configured to have a cylindrical speaker cabinet 20, an actuator 21 that vibrates the speaker cabinet 20, and a stand 25 that supports the speaker cabinet 20. 2C is a perspective view showing the elliptic cylindrical speaker 2, and FIG. 2D is a perspective view showing the stand 25 for the speaker 2. The stand 25 has four legs, which are arranged in the major axis and minor axis directions of the ellipse. In addition, the width 1. A ring-shaped disc of about 5 cm is fixedly provided for supporting the cabinet.

The speaker cabinet 20 is configured as shown in FIGS. 3A and 3B. 3A is a perspective view of the speaker cabinet 20, and FIG. 3B is a sectional view of the speaker cabinet 20. Similar to the speaker cabinet 10 according to the first embodiment, the speaker cabinet 21 is made of a front plate 20A, a back plate 20B such as German pine and Ezo pine, and a side plate 10C such as maple, cypress, birch, and kayak. Materials for musical instrument resonance such as Micamore are used. An opening is provided in the center of the front plate 20A, and an actuator 21 is fixed to the back plate 20B. The actuator 21 vibrates the entire speaker cabinet.

As shown in FIGS. 2A and 2B, the stand 25 includes an annular ring 25B and four legs 25A fixed to the outer edge of the annular ring 25B. There is. A protrusion is provided on the upper end of the leg 25A, and the speaker cabinet 20 is placed on the protrusion. That is, the speaker cabinet 20 and the stand 25 are in point contact with each other. Since the contact area between the two is extremely small, the sound waves are emitted not only from the front plate 20A and the side plate 20C but also from the back plate 20B without disturbing the vibration of the speaker cabinet 20.

In the speaker 2 according to the present embodiment, since the actuator 21 directly vibrates the speaker cabinet 20, the vibration of the speaker cabinet 20 is larger than that of the speaker 1 according to the first embodiment. It has become a thing. The speaker cabinet 20 also has an opening. Therefore, the sound wave reflected and interfered inside the speaker cabinet 20 is emitted from the opening, and the sound wave due to the vibration of the entire speaker cabinet 20 is emitted in various directions. These acoustic waves propagate in various directions in space with reflection, interference, and phase difference. Therefore, depending on the sound source, each of these sound waves produces a vibration that is synthesized at the listener's position so as to form a kind of focus of a sound wave at a certain point in space, and from the position of the speaker 2 to the listener. Sound waves are created that make you feel different from the direction of. Thus, the listener's binaural ears capture sound waves from these complex foci, and the listener perceives the sound image as localized to various locations in space. That is, it is possible to generate a sound field that is three-dimensionally wide. Further, by using a plurality of the speakers 2, it is possible to generate a sound field having a wider range.

Here, with reference to FIG. 4, the states of sound waves emitted from the speaker cabinet 10 according to the first embodiment and the speaker cabinet 20 according to the second embodiment will be described. FIG. 4A shows the state of sound waves in the speaker cabinet 10 according to the first embodiment. The sound waves emitted from the back surface of the speaker unit 11 vibrate the speaker cabinet 10 as a whole while reflecting and interfering inside the speaker cabinet 10. In addition, a sound wave is generated from the front surface of the speaker unit 11 due to the vibration of the cone paper. On the other hand, in the speaker cabinet 20 according to the second embodiment, the actuator 21 vibrates the entire speaker cabinet 20. Therefore, sound waves are emitted from the entire speaker cabinet 20. In addition, a sound wave reflected or interfered with inside the speaker cabinet 20 is emitted from the opening.

As described above, since the sound waves emitted from the speaker cabinets 10 and 20 are different from each other, the timbres are also different. Furthermore, the tone color also changes depending on the material for the musical instrument resonance section used in the speaker cabinets 10 and 20. Therefore, a desired timbre can be obtained by appropriately changing the shape, size, material and the like of the speaker cabinets 10, 20.

It should be noted that the timbre also changes depending on the surface finishing and painting of the speaker cabinets 10 and 20. For example, as shown in FIG. 5, a plate material 51 made of a uniform material with a mirror-finished surface, and a material having the same material and the same dimensions with a slightly uneven surface such as frosted glass. The states of the respective sound waves emitted from the plate material 52 and the plate material 52 are slightly different. Therefore, it is possible to obtain the necessary delicate tone color by changing the surface finish, painting, etc. of the speaker cabinets 10, 20.

FIG. 6 is a diagram showing a speaker 6 according to a third embodiment of the present invention. The speaker 6 includes a horn-shaped speaker cabinet 60, a speaker unit 61, and a stand 65 that supports the speaker cabinet 60. The speaker cabinet 60 is made of a material (material for musical instrument resonance portion such as brass or nickel alloy) similar to a morning glory (musical instrument resonance portion) used for wind instruments such as horn, and its thickness and shape are also the same. It is formed according to the morning glory. The speaker unit 61 is attached to the inside of the speaker cabinet 60 configured as described above. There is a structure in which the lower part 60A of the speaker unit is filled with glass wool and the like, and a bottom plate 60C is attached to the part 60B, and a structure in which the lower part of the speaker unit is passed through to utilize the sound of the lower part of the speaker unit. It is selected according to the required tone color. The stand 65 that supports the speaker cabinet 60 includes a circular base 65A, a pillar 65B standing on the base 65A, and an annular ring 65C fixed to the pillar 65B. Since the speaker cabinet 60 and the circular ring 65C are in line contact with each other, the contact area between them is extremely small. Therefore, the vibration of the speaker cabinet is not disturbed by the stand 65.

In the speaker 6 thus configured, the sound wave emitted from the speaker unit 61 is emitted from the opening of the speaker cabinet 60 while vibrating the entire speaker cabinet 60. Since this speaker cabinet 60 is constructed in accordance with the morning glory of a wind instrument, it is possible to obtain a bright tone specific to a wind instrument. By using wood (material for musical instrument resonance part) used for the morning glory of woodwind instruments in the speaker cabinet 60, it is possible to obtain a warm tone unique to woodwind instruments.

Hereinafter, FIGS. 7 to 10 show application examples of the speakers according to the first to third embodiments.

FIG. 7 is a diagram showing a state in which the speakers 2A and 2B according to the second embodiment are installed in a hotel lobby. The speaker 2A outputs sounds of insects and wind chimes, and the speaker 2B outputs environmental music and the like. These sounds are emitted from the speakers 2A and 2B with a three-dimensional spread. The speakers 2A and 2B can reproduce a sound that wraps around the listener, and since the sound has a warm tone, it is possible to soften the feeling of the listener located in the lobby. The result is the result. The speakers 2A and 2B may be installed in a theater or the like.

FIG. 8 is a diagram showing a state in which a plurality of speakers 60 according to the third embodiment are installed. By appropriately changing the angle of the speaker cabinet 60 with respect to the stand 65, the sound image localized by the speaker 6 can be moved. Further, the inclination of the speaker cabinet 60 may be automatically changed along with the content of music. FIG. 9 is a diagram showing a state where the speaker 6 according to the third embodiment is installed in the planetarium. By using a plurality of speakers 6, it is possible to create a sound field space that matches the image of the starry sky.

FIG. 10 shows the speaker 6 according to the third embodiment placed on a stand 100 that has been aesthetically treated. The stand 100 includes a base 100A, a pillar 100B standing on the base 100A, and a curved wire 100C extending from the pillar 100B. The speaker 6 is placed on the annular portion provided at the tip of the wire 100C. Since this stand 100 has been aesthetically treated, it does not feel uncomfortable when installed on a bar, disco, etc.

FIG. 11A is an external view of a speaker according to a fourth embodiment of the present invention. The speaker cabinet 110 has a hollow spherical shape and is made of wood (material for musical instrument resonance part) such as pine, cypress, and kaya. The speaker unit 111 is fixed in a circular hole provided in the speaker cabinet 110. Although not shown, the stand 65 or the like according to the third embodiment can be used as a stand for supporting the speaker cabinet 110. Further, the speaker cabinet 110 may be hung from the ceiling. Thus, by supporting the speaker cabinet 110 by line contact or point contact, it is possible to prevent the speaker cabinet 110 from being disturbed.

In the speaker according to the fourth embodiment, when the entire speaker cabinet 110 vibrates, sound waves are emitted in all directions centering on the speaker cabinet 110. Therefore, an omnidirectional speaker can be realized.

FIG. 11B is a sectional view of a speaker according to a fifth embodiment of the present invention. In this figure, a speaker cabinet 121 and a speaker unit 122 are arranged in a common sound box 120. The resonance box 120 made of a material such as a roof tile has a shape in which the upper part of a cylinder is covered with a hemisphere. Then, inside the resonance box 120, two spaces are formed vertically. A speaker cabinet 121 is placed on the rib extending between these spaces. The sound wave emitted from the speaker cabinet 121 resonates inside the resonance box 120, and the sound wave is emitted from a plurality of openings provided on the side wall of the resonance box 120. Since roof tiles are used as the material of the resonance box 120, it is possible to obtain a tone color unique to the roof tiles. Needless to say, various tones can be obtained by changing the material of the speaker cabinet 120.

It should be noted that the following materials can be used as the material for the musical instrument resonance portion constituting the speaker cabinets 10, 20, 60, 110 described above. Examples include granadilla used in oboe and clarinet, spruce used in piano soundboard, rosewood used in marine, etc., silver used in flute, etc.

[0028]

[Effect of device]

 As described above, according to the present invention, it is possible to provide a speaker provided with a stand that does not disturb the vibration of the speaker cabinet made of musical instrument material or the like.

[Submission date] October 12, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

FIG. 1 is an external view of a speaker 1 according to a first embodiment of the present invention. The speaker 1 is a so-called closed type, and includes a speaker cabinet 10, a speaker unit 11, and a stand 15. The speaker cabinet 10 has a hollow cylindrical shape and is made of a material (material for musical instrument resonance portion) used for a guitar body (instrument resonance portion) or the like. That is, the top plate 10A, a back plate 10B is Germany pine, made of Ezo pine, etc., side plates 10C are maple, Sea Press, birch, Kaya, which is from deer mower like. A circular hole is provided in the center of the front plate 10A, and the speaker unit 11 is fixed to the front plate 10A so as to fit into the hole. The speaker unit 10A is a so-called full-range type, but it is also possible to use a coaxial type. It has been confirmed that the cylindrical speaker cabinet 10 according to the present embodiment produces sound more naturally than the rectangular parallelepiped speaker cabinet.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

The speaker cabinet 20 is configured as shown in FIGS. 3A and 3B. 3A is a perspective view of the speaker cabinet 20, and FIG. 3B is a sectional view of the speaker cabinet 20. Similar to the speaker cabinet 10 according to the first embodiment, the speaker cabinet 20 is made of a front plate 20A, a back plate 20B such as German pine or Ezo pine, and a side plate 10C such as maple, cypress, birch or kayak. Materials for musical instrument resonance such as sycamore are used. An opening is provided in the center of the front plate 20A, and an actuator 21 is fixed to the back plate 20B. The actuator 21 vibrates the entire speaker cabinet.

[Brief description of drawings]

FIG. 1 is an external view of a speaker according to a first embodiment of the present invention.

FIG. 2 is an external view of a speaker according to a second embodiment of the present invention.

FIG. 3 is a perspective view of a speaker cabinet according to a second embodiment of the present invention.

FIG. 4 is a diagram showing sound waves in respective speaker cabinets according to the first embodiment and the second embodiment of the present invention.

FIG. 5 is a diagram showing the influence of surface finishing of the speaker cabinet according to the first and second embodiments of the present invention on sound waves.

FIG. 6 is an external view of a speaker according to a third embodiment of the present invention.

FIG. 7 is a view showing a state in which a speaker according to a second embodiment of the present invention is installed in a hotel lobby.

FIG. 8 is a view showing a state in which a speaker cabinet is tilted and used in a speaker according to a third embodiment of the present invention.

FIG. 9 is a view showing a speaker according to a third embodiment of the present invention installed in a planetarium.

FIG. 10 is a view showing a state in which a speaker according to a third embodiment of the present invention is mounted on a stand that has been aesthetically treated.

FIG. 11 is a diagram illustrating a speaker according to a fourth embodiment of the present invention and a speaker according to a fifth embodiment of the present invention.

[Explanation of symbols]

10, 20, 60, 110 Speaker cabinet, 1
1, 61, 111 Speaker unit, 21 Actuator (speaker unit), 15, 25, 65, 10
0 stand

Claims (1)

[Scope of utility model registration request] 1. A speaker cabinet having a material for a musical instrument resonance part, a speaker unit attached to the speaker cabinet, and a stand for supporting the speaker cabinet in the vicinity of nodes of vibration or at a position where the amplitude is small. Speaker.