JP3539761B2 - Acoustic body sensation - Google Patents

Description

[0001]
[Industrial applications]
The present invention provides an acoustic experience in which an electric sound signal output from an arcade game machine, a home game machine, or various other audio devices is converted into mechanical vibration and transmitted to a user's body. In particular, the present invention relates to a sound countermeasure technology such as a soundproofing for an outside and a sound arrangement for an inside of a sound sensation device.
[0002]
[Prior art]
Generally, the basic structure of this kind of acoustic sensory device is to provide a partition plate for dividing an inner space of a container body into two chambers, and to attach a speaker to an opening formed in the partition plate. Then, due to the sound emitted from the speaker, air vibration is generated in the internal space of the container body based on the sound pressure and the like, and the vibration is transmitted to the user's body through the outer wall of the container body. It has become.
[0003]
As a specific example, according to Japanese Patent Application Laid-Open No. Hei 5-316592, in a basic configuration in which the inside of an airtight container is partitioned into two airtight chambers by a partition attached with a speaker, rubber or polyurethane or the like that absorbs vibration is used. An additional configuration is disclosed in which the outer edge of the partition wall is mounted in the closed container via a cushioning material. According to such a configuration, the partition has a function as a diaphragm, and the partition vibrates integrally with the cone paper of the speaker. No unpleasant reverberations are produced.
[0004]
According to this acoustic sensory device, a through hole is formed at one location of the partition wall, and air vibration generated in one airtight chamber due to sound pressure from the speaker passes through the through hole. Since the air vibration is propagated to the other airtight chamber, the air vibration generated once is not immediately attenuated, and a suitable air vibration is generated in the entire internal space of the container body. In addition, the publication suggests that the sound pressure is further increased by the effect of narrowing down the sound generated when the air vibration passes through the through-hole, and the vibration generated on the entire outer wall of the closed container is increased.
[0005]
[Problems to be solved by the invention]
By the way, according to the acoustic body sensation device disclosed in the above-mentioned publication, since the surface side portion of the container body, that is, the surface wall portion on the side opposite to the side in contact with the body is single, the sound emitted from the speaker is generated by the surface wall portion. This causes a problem of leaking out of the unit. Such a situation may cause unpleasant noise and may deteriorate the surrounding environment.
[0006]
On the other hand, when the above-mentioned sound sensory device is used by being connected to an arcade game machine or a home game machine, the sound obtained based on the signal from the game progress state control means of the game machine body is used. It is a common practice to send a drive signal as a drive signal to a speaker in the acoustic body sensation device without performing any processing. According to such a transmission mode of the speaker drive signal, signals in all frequency ranges from low frequency to high frequency are transmitted to the speaker.
[0007]
As a result, for example, sound in a high-frequency region is only an unpleasant sound in the acoustic body sensation device and does not generate a vibration that is desirable for the bodily sensation, but this kind of unnecessary sound is inherently necessary. The sound emitted from the speaker mixed with the sound causes the user to feel discomfort. In addition, this also causes noise and environmental disturbance.
[0008]
The present invention has been conceived in view of the above-described circumstances, and ensures soundproofing of the acoustic body to the outside of the container body, and provides sound so that only vibrations that are physically favorable for the user can be obtained. An object of the present invention is to perform signal processing to prevent noise from occurring.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following technical means.
[0010]
That is, the invention described in claim 1 of the present application provides at least a defining plate for defining a sound generating space between a container portion having a bottom surface portion on the contact side with the body and a speaker portion mounted with the speaker portion. And a container body from the above, in an acoustic sensory device configured to generate vibration on the bottom portion of the container portion based on the sound emitted from the speaker,
A cover member having a double structure is provided on the surface side of the container body with a predetermined auxiliary space interposed therebetween.
[0011]
In this case, it is preferable that at least the front cover member of the cover member having the dual structure is formed of a thin elastic member.
[0012]
On the other hand, the invention described in claim 3 of the present application is the acoustic body effector according to the invention described in claim 1 or 2,
Along with a sound generating means for transmitting an acoustic signal to the speaker, a low-pass filter or a band-pass filter for cutting at least a high-frequency acoustic signal is provided in a signal transmission path from the sound generating means to the speaker. It is characterized by being interposed.
[0013]
In this case, the sound generating means sends the sound obtained based on the signal from the game progress state control means of the game machine body to the sound output means for the game machine body, and transmits the sound to the signal transmission means. It is preferable that the signal is transmitted to the path as an acoustic signal (claim 4).
[0014]
Function and Effect of the Invention
According to the acoustic body sensation device according to the first aspect of the present invention, when sound is emitted from the speaker and air vibration occurs in the sound generation space of the container body, the air vibration causes the container portion. Vibration is transmitted to the bottom surface of the. In this case, the sound emitted from the speaker tends to pass through the wall (definition plate) on the surface side of the container body and be emitted to the outside, but the surface side of the container body has a double structure. , The sound is reliably prevented from leaking to the outside.
[0015]
Specifically, since the bottom portion of the container body is in contact with the body, sound emission from the bottom portion is blocked by the body, whereas sound emission from the front side is caused by the cover member itself. Are prevented by a synergistic action between the soundproofing function provided by the device and the sound absorbing function of the air in the auxiliary space.
[0016]
If at least the cover member on the front surface side is made of a thin elastic member as in the invention described in claim 2, the sound is appropriately applied as the cover member itself is easily elastically deformed. And no subtle sound emission to the outside.
[0017]
On the other hand, according to the third aspect of the present invention, at least the high-frequency component of the acoustic signal transmitted from the acoustic generating means to the speaker via the signal transmission path is cut by the low-pass filter or the band-pass filter. . Therefore, only a sound signal in a desired frequency region, particularly a low frequency region, is transmitted to the speaker. The air vibration generated by the sound only in the low frequency region is necessarily a vibration of only the low frequency component, and the low frequency vibration is transmitted to the body from the bottom of the container body.
[0018]
In addition, in order to select a region that is particularly sensible to the body among the low-frequency regions, a band-pass filter that can cut even an extremely low-frequency region may be used.
[0019]
In a case where the acoustic sensory device is connected to a game machine as an actual mode of use, it is preferable to adopt a configuration as in the invention described in claim 4. That is, the main body of the game machine is provided with sound generation means that originally plays a role of transmitting sound obtained based on a signal from the game progress state control means to the sound output means for the main body of the game machine. Therefore, an acoustic signal emitted from the acoustic generating means is extracted and sent to the speaker via the low-pass or band-pass filter.
[0020]
In this way, while the user enjoys the image and the sound output from the game machine body visually and audibly during the progress of the game, the user receives the vibration based on the sound in the low frequency region in the sound, You will also be able to enjoy the comfort of that experience.
[0021]
[Explanation of the embodiment]
Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
[0022]
FIG. 1 is a control system diagram for controlling the acoustic sensation device 1 according to the present invention, FIG. 2 is a perspective view showing the appearance of the acoustic sensation device 1, FIG. 3 is an exploded perspective view thereof, and FIGS. It is the longitudinal section.
[0023]
First, referring to FIG. 2 to FIG. 5, the acoustic sensory device 1 includes a container body 4 in which two half cases 2 and 3 are united to form an internal space therebetween, and an inside of the container body 4. It is provided with a defining plate 5 for dividing the space into two and a speaker 6 mounted on the defining plate 5. As shown in FIG. 2, on both side edges of the acoustic sensory device 1, one end of shoulder belts 15, 15 wrapped around the user's shoulder, and a side belt wrapped around the side of the side. 16, 16 are connected to one end. A front side cover member 7a for obtaining a soundproofing effect by attaching a wall portion of the container body 4 to a double structure is attached to the front surface side portion of the container body 4, and a rear surface side portion of the container body 4 is attached to the front surface portion. A back cover member 7b that comes into direct contact with the body surface is attached.
[0024]
The container main body 4 can be constituted by two members, that is, the rear half case 3 and the defining plate 5, so that the front half case 2 serves as a front cover member. Will fulfill. That is, any structure may be used as long as the sound generating space 11 is defined between the rear half case 3 and the defining plate 5, and the front half case 2 (front cover member) and the defining half are separated from each other. The airtightness with the plate 5 may not be perfect.
[0025]
The cover member 7a on the front side of the cover members 2 and 7a doubly arranged on the front side is formed of an elastic material such as rubber in a thin-walled shape. By fixing to the side, the auxiliary space 13 is defined between the double cover members 2 and 7a (see FIGS. 4 and 5). The front cover member 7a is attached to the container main body 4 by, for example, an engaging portion such as an engaging claw formed on the outer peripheral edge of the cover member 7a and an engaging portion formed on the outer peripheral edge of the container main body 4. The engaged portion such as the joint concave portion may be configured to be disengageable. Further, the cover member 7a may be fixed to the container body 4 by using a screw, a rivet, an adhesive, or the like. In this case, the auxiliary space 13 is preferably a completely closed space, but its airtightness is not necessarily required to be perfect.
[0026]
On the other hand, the acoustic sensory device 1 is connected to an arcade or home game machine via a signal transmission path as described below.
[0027]
That is, as shown in FIG. 1, an arcade or home game machine 20 includes, for example, an input unit 23 composed of a lever 21 and a push button switch 22, a storage unit 24 storing various game information, and Game progress state control means 25 for determining and controlling the progress state of the game based on signals from the means 23 and the storage means 24; an image signal a and sound obtained based on the signals from the game progress state control means 25; An image output unit 26 and an audio output unit 27 for receiving an image output and an audio output for the user in response to the signal b are provided.
[0028]
More specifically, the image generating means 28 sends out the image signal a based on the signal from the game progress control means 25, and the sound generating means 29 also controls the sound generation means 29 based on the signal from the game progress control means 25. The sound signal b is transmitted.
[0029]
Then, the sound signal b from the game progress state control means 25 is input to the speaker 6 as a drive signal b1 via a filter F which is a low-pass filter or a band-pass filter. Note that an amplifier or the like for performing predetermined signal amplification is interposed in the signal transmission path.
[0030]
The low-pass filter removes high-frequency components from the sound signal b from the game progress state control means 25. For example, only the frequency signal of about 120 to 160 Hz or less is used as the drive signal b1 as the drive signal b1. Is entered. When it is desired to generate a vibration within a predetermined range of 100 Hz to 160 Hz, for example, a band pass filter for extracting only a frequency signal within this range as the drive signal b1 may be used.
[0031]
Further, in this embodiment, the following configuration is employed in order to generate sufficient vibration inside the container body 4 and to appropriately transmit the vibration to the body.
[0032]
That is, the material of the two half cases 2 and 3 shown in FIGS. 2 to 5 is such that the front half case 2 has a hard or semi-rigid characteristic, while the rear half case 3 has Have soft properties. Specifically, for example, the front half case 2 is relatively thickly formed of a material such as polypropylene or polyethylene, and the rear half case 3 is relatively formed of a material such as polypropylene or polyethylene. It is formed thin. In this case, since the bottom surface 3x of the rear half case 3 is a part that comes into contact with the body of the user, in addition to being formed in the above-mentioned curved shape, this part is thinned and slightly bent. It is preferable to form it so that deformation occurs.
[0033]
On the other hand, the material of the defining plate 5 is a general resin having rigid or semi-rigid properties, specifically, for example, polypropylene, polyethylene, polystyrene, ABS resin, polycarbonate, PWA, FRP, MMA, Ever resin. , Rubber resin and the like are used. A circular opening 8 is formed substantially at the center of the defining plate 5, and a peripheral edge of the opening 6 is provided with a screw, a rivet, an adhesive, or the like at an expanded end of the speaker 6. Fixed using. In this case, as shown in FIGS. 4 and 5, the expanded portion side of the speaker 6 faces the bottom surface 3 x of the half case 3 on the back side. Therefore, at the time of actual use, the expanded portion side of the speaker 6 is directed to the body side of the user.
[0034]
Further, a corrugated plate-like portion 9 having a corrugated shape composed of a plurality of annular concavo-convex portions 9a concentric with the opening 8 is formed in the outer peripheral portion of the opening 8 in the defining plate 5. The speaker 6 is elastically supported by the corrugated plate 9, and the corrugated plate 9 bends and vibrates in conjunction with the vibration of the speaker 6. Further, air vibration can be circulated between the back space 10 and the sound pressure generating space 11 partitioned by the defining plate 5 at the portion where the corrugated plate 9 is not formed in the defining plate 5. Hole 12 is formed. If necessary, for example, a slit may be formed instead of the through hole 12.
[0035]
However, experiments have shown that, depending on the material of the defining plate 5, sufficient vibration can be ensured without forming the corrugated plate-like portion 9 or the through hole 12. Therefore, it is preferable that the corrugated plate-like portion 9 and the through-hole 12 are appropriately provided according to the material of the defining plate 5.
[0036]
As shown in FIG. 3, flange portions 2a and 3a having relatively high rigidity are integrally formed on the outer peripheral edges of the two half cases 2 and 3, respectively. The flanges 2a, 3a are fixed between the flanges 2a, 3a using screws, rivets, an adhesive, or the like, with the outer peripheral edge of the defining plate 5 being sandwiched between the flanges 3a. The flanges 2a, 3a of the two half cases 2, 3 are integrally formed with bulges 2b, 3b projecting outward at four places, respectively. The shoulder belts 15 and the side belts 16 are inserted and fixed in belt mounting holes 2c, 3c formed in the holes 2b, 3b (see FIG. 5).
[0037]
In this case, as shown in FIG. 6, the holding case 7 may be formed by integrating the front cover member 7a and the back cover member 7b, and the container body 4 may be housed inside the holding case 7. Good. In the case of such a structure, the shoulder belts 15 and the side belts 16 are connected or integrated on both sides of the holding case 7 as shown in FIG. If an opening that can be opened and closed with a fastener or the like is formed in a part (for example, a back surface) of the holding case 7, the container body 4 can be easily stored and removed from the inside of the holding case 7, and maintenance can be performed. Inspection work becomes simple.
[0038]
As the material of the holding case 7, a material having relatively soft characteristics such as rubber and resin is used. The holding case 7 is bent and deformed so that its internal space becomes flat due to the pulling force of each of the belts 15 and 16 when the body is worn on the body. The container body 4 is held without rattling. By storing the container body 4 inside the holding case 7, the auxiliary space 13 is interposed between the front half case 2 and the surface wall (cover member 7a) of the holding case 7. The auxiliary space 13 is always secured by the inwardly protruding portion 7s of the cover member 7a on the front side even if the holding case 7 is bent and deformed in a flat shape due to the pulling force. The presence of the auxiliary space 13 prevents delicate sound leakage from the container body 4. Further, as described above, the container main body accommodated in the holding case 7 may be constituted by the half case 3 on the back side and the defining plate 5.
[0039]
On the other hand, as shown in FIGS. 2 and 5, each of the shoulder belts 15 and the flank belts 16 is configured by elastic elastic bands 15a and 16a having elasticity such as rubber around the connecting portion to the container body 4. On the other hand, the other portions are constituted by non-stretchable band-like members 15b and 16b made of a non-stretchable material such as cloth, leather or resin. A large number of through holes 15x, 16x are formed in the elastic elastic strips 15a, 16a to ensure air permeability. The belts 15 and 16 may be formed of a non-stretchable belt over the entire length.
[0040]
In this case, as shown in FIG. 8, the other end of the non-stretchable band-like body 16 b of each of the side belts 16 is connected to each other by a metal fitting 16 w at the center of the abdomen of the user. It is designed to be tightened. Further, the other end of the non-stretchable band-like body 15b of each of the shoulder belts 15 is wound around the user's shoulder and suspended down to the abdomen by a metal fitting 15w at a position separated by a predetermined dimension of the flank belt 16 respectively. Connected.
[0041]
Next, the operation of the above embodiment will be described.
[0042]
As shown in FIGS. 7 and 8, when worn on the body of the user, the acoustic body 1 is securely brought into contact with the back of the user using the shoulder belt 15 and the flank belt 16. Hold. In this case, the whole area of the bottom surface 3x of the back half case 3 of the acoustic body 1 comes into contact with the back uniformly.
[0043]
In such a state, when the user appropriately operates the input unit 23 of the game machine 20 shown in FIG. 1, the image signal a and the sound signal b that change every moment are transmitted to the image output unit 26 and the sound output unit 27. Each is sent out and the game proceeds.
[0044]
While the game is proceeding in this manner, the sound signal b is transmitted from the sound generation means 29 based on the signal from the game progress state control means 25. The signal is input to the speaker 6 as a drive signal b1 via a pass filter (or a band pass filter) F. Therefore, the drive signal b1 in the predetermined low frequency region is input to the speaker 6.
[0045]
As a result, a low-frequency sound pressure is emitted from the speaker 6, and this sound pressure becomes a pressure wave, and firstly, an air vibration is generated in the sound generation space 11. Then, the air vibration passes through the through hole 12 (or slit or the like) of the defining plate 5 and propagates to the back space 10, and as a result, the air vibration occurs in the entire internal space of the container body 4.
[0046]
In conjunction with this, due to the vibration of the cone paper of the speaker 6, the speaker 6 itself also vibrates while flexing and deforming the corrugated portion 9 of the defining plate 5. As a result, even if the diameter of the speaker 6 is small, the same sound pressure generation effect as when the diameter of the speaker 6 is enlarged is exhibited, and a sufficient level of sound pressure can be generated. Therefore, the speaker 6 built in the acoustic sensory device 1 can generate sufficient heavy bass despite its small diameter due to its installation space.
[0047]
Further, since the vibration of the corrugated plate-like portion 9 of the defining plate 5 is directly transmitted to the bottom surface 3x of the half case 3 on the back side, this vibration is applied to the back of the user. The sum of the vibration accompanying the direct propagation from the corrugated plate 9 and the air vibration due to the sound pressure is transmitted. Then, since these vibrations are vibrations caused by the acoustic signal in the predetermined low frequency region, comfortable vibrations are given to the user.
[0048]
On the other hand, even if sound is continuously emitted from the speaker 6 to generate such vibration, the bottom surface 3x of the half case 3 on the back side of the container body 4 is in contact with the back of the user. The sound emission from the back side to the outside is blocked by the back of the user.
[0049]
On the other hand, the front side of the half case 2 on the front side is covered by the double-structured cover members 2 and 7a with the auxiliary space 13 interposed therebetween, so that sound leaks from the front side to the outside. Is also blocked. Specifically, since the cover member 7a on the front side is formed in a thin shape by rubber or the like, the cover member 7a itself is appropriately bent and deformed, and the sound or vibration is generated by the action of the air in the auxiliary space 13. It will be absorbed reliably and will be able to prevent subtle sound leakage.
[0050]
Further, in this embodiment, the expanded end of the speaker 6 is directed to the bottom surface 3x of the rear half case 3, and the sound pressure from the speaker 6 is emitted toward the bottom surface 3x. Is hardly directly affected by the sound pressure. In addition, since the half case 2 serving as the front cover member has a hard or semi-hard characteristic, the structure itself of the acoustic sensation device 1 hardly causes leakage of sound from the surface side to the outside. It is in a state.
[0051]
In the above embodiment, the present invention is applied to a rucksack type that applies vibration to the user's back, but the present invention is similarly applied to a type shown below. The invention is applicable.
[0052]
That is, as shown in FIG. 13, the present invention is applied to a pouch type in which the acoustic sensory device 1 is worn around the waist of the user using the waist belt 17.
[0053]
As shown in FIG. 9, the acoustic sensory device 1 used in this case has an elongated rectangular shape in which both side edges are curved. The internal structure is basically the same as that of the above-described embodiment, as shown in FIGS. Accordingly, in FIGS. 9 to 13, the same reference numerals are given to the same components as those in the above-described embodiment, and the description thereof will be omitted.
[0054]
Also, according to the configuration of the acoustic body effector 1, similarly to the above-described embodiment, the comfort of the user due to the vibration only in the low frequency region, the novelty of the game by incorporating the vibration into the game, Further, needless to say, advantages such as reliable soundproofing can be obtained by the double cover members 2 and 7a.
[0055]
In the above embodiment, the home or arcade game machine is connected to the sound sensation device 1. However, a device having sound generation means other than the game machine, the sound sensation device 1, Are connected, the same operation and effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a control system of one embodiment of an acoustic body effector according to the present invention.
FIG. 2 is an external perspective view of the acoustic sensory device according to the embodiment.
FIG. 3 is an exploded perspective view of the parts of the acoustic sensor according to the embodiment.
FIG. 4 is an enlarged vertical sectional side view taken along line AA of FIG. 3;
FIG. 5 is an enlarged vertical sectional rear view taken along the line BB of FIG. 3;
FIG. 6 is a longitudinal sectional view showing another example of mounting the body wearing belt of the acoustic body sensation device according to the embodiment, and is a view corresponding to FIG.
FIG. 7 is a schematic view showing a use state of the acoustic body effector according to the embodiment.
FIG. 8 is a schematic diagram showing a use state of the acoustic body effector according to the embodiment.
FIG. 9 is an external perspective view showing another embodiment of the acoustic body effector according to the present invention.
FIG. 10 is an enlarged vertical cross-sectional side view taken along line CC of FIG. 9;
FIG. 11 is an enlarged vertical sectional rear view cut along the line DD of FIG. 9;
FIG. 12 is a longitudinal sectional view showing another example of attachment of the body wearing belt of the acoustic body sensation device according to the other embodiment, and is a view corresponding to FIG.
FIG. 13 is a schematic diagram showing a use state of the acoustic body effector according to the other embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Acoustic sensory device 2 Front half case 3x Bottom part 4 Container main body 5 Definition board 6 Speaker 7a Front cover member 13 Auxiliary space 20 Game machine main body 25 Game progress state control means 29 Sound generation means b Sound signal b1 Speaker drive Signal F Low-pass filter (band-pass filter)

Claims (4)

At least a container body having a bottom surface on the contact side with the body and a defining plate on which a speaker is mounted to define a sound-generating space between the container portion and the container body, and the speaker body emits the sound. In the acoustic sensory device configured to generate vibration on the bottom portion of the container portion based on the sound to be received,
An acoustic body sensation, wherein a cover member having a double structure is provided on a surface side of the container body with a predetermined auxiliary space interposed therebetween. The acoustic body sensation device according to claim 1, wherein at least the front cover member of the cover member having the double structure is formed of a thin elastic member. Along with a sound generating means for transmitting an acoustic signal to the speaker, a low-pass filter or a band-pass filter for cutting at least a high-frequency acoustic signal is provided in a signal transmission path from the sound generating means to the speaker. The acoustic sensory device according to claim 1, wherein the acoustic sensory device is interposed. The sound generation means sends sound obtained based on a signal from the game progress state control means of the game machine body to a sound output means for the game machine body, and sends the sound to the signal transmission path. The acoustic sensory device according to claim 3, which is transmitted as a signal.

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