JPH07327289A - Sound bodily sensor - Google Patents

Abstract

PURPOSE:To prevent a noise from being generated by securely insulating the container body of the sound bodily sensor from an external sound and processing a sound signal so as to obtain only vibration which is preferable in bodily sensation for a user. CONSTITUTION:The sound bodily sensor 1 has its container body 3 composed of at least a container part 3 and a partition plate 5 which forms a sound generation space in the container part and generates vibration with the sound from a speaker 6 mounted on the partition plate 5; and cover members 2 and 7a in double structure cover the top surface side of the container body 4 while a specific auxiliary space 13 is interposed. This unit is equipped with a sound generating means which sends out a sound signal to the speaker 6, and a low- pass filter (or band-pass filter) which cuts a sound signal at least in a high frequency range is interposed halfway in the signal transmission path from the sound generating means to the speaker 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention converts an electric acoustic signal output from an arcade game machine, a home game machine, or other various types of audio equipment into mechanical vibrations and applies it to a user's body. The present invention relates to an acoustic sensor that is transmitted, and particularly to an acoustic countermeasure technique such as soundproofing of the outside of the acoustic sensor and sound organization of the inside.

[0002]

2. Description of the Related Art In general, the basic structure of this type of acoustic sensor is to equip a partition plate that divides the inner space of the container body into two chambers and to mount a speaker in the opening formed in this partition plate. is there. Then, due to the sound being emitted from the speaker, air vibration is generated in the internal space of the container body based on its sound pressure, and this vibration is transmitted to the user's body through the outer wall of the container body. Has become.

As a specific example thereof, Japanese Patent Laid-Open No. 31628/1993
According to Japanese Unexamined Patent Publication No. 2 (1994), in a basic structure in which the inside of a closed container is partitioned into two airtight chambers by a partition wall to which a speaker is attached, the partition wall is formed via a shock absorbing material such as rubber or polyurethane that absorbs vibration. An additional configuration is disclosed in which the outer edge of the above is installed in the closed container. According to such a configuration, the partition wall is provided with a function as a vibration plate, the partition wall vibrates integrally with the cone paper of the speaker, and due to the appropriate vibration absorbing action of the cushioning material, No unpleasant reverberation is generated.

Further, according to this acoustic sensor, a through hole is formed at one location of the partition wall, and the air vibration generated in one airtight chamber due to the sound pressure from the speaker is Since it will be propagated to the other airtight chamber through the through hole, the air vibration once generated will not be immediately attenuated,
Suitable air vibrations occur throughout the interior space of the container body. In addition, the publication suggests that the sound pressure is further increased by the effect of narrowing 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 becomes large.

[0005]

By the way, according to the acoustic sensor disclosed in the above 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 speaker This causes a problem that the sound emitted from the outside leaks from the surface wall portion to the outside. Such a situation causes an unpleasant noise and causes a deterioration of the surrounding environment.

On the other hand, when the above-mentioned acoustic sensor is used by being connected to an arcade game machine or a home game machine, it is obtained based on a signal from the game progress control means of the game machine body. It is customary to send sound as a drive signal to a speaker in the acoustic sensor without performing any processing. According to such a transmission mode of the speaker drive signal, signals in all frequency regions from low frequency to high frequency are transmitted to the speaker.

As a result, for example, the sound in the high frequency region is only an unpleasant sound in the acoustic sensation device and does not generate the vibration which is preferable for the sensation.
When this kind of unnecessary sound is mixed with the originally necessary sound and emitted from the speaker, it causes the user to feel discomfort. Moreover, this also causes noise generation and environmental inhibition.

The present invention has been devised under the above-mentioned circumstances, and ensures soundproofing of the outside of the container body of the acoustic sensor, and provides only vibration that is pleasing to the user. It is an object to prevent the generation of noise in advance by processing the acoustic signal as described above.

[0009]

In order to solve the above problems, the present invention takes the following technical means.

That is, in the invention described in claim 1 of the present application, a sound generating space is defined at least between a container portion having a bottom surface portion on the side of contact with the body and a speaker attached thereto. In the acoustic sensor configured to form a container body from the defining plate-like body and to generate vibration in the bottom surface portion of the container portion based on the sound emitted from the speaker, on the surface side of the container body. It is characterized in that a cover member having a double structure is provided by interposing a predetermined auxiliary space.

In this case, it is preferable that at least the cover member on the front surface side of the double-structured cover member is made of a thin elastic member (claim 2).

On the other hand, the invention described in claim 3 of the present application is
The acoustic sensor according to the present invention as set forth in claim 1 or 2, further comprising: sound generating means for transmitting a sound signal to the speaker, and at least in the middle of a signal transmission path from the sound generating means to the speaker. It is characterized in that a low-pass filter or a band-pass filter that cuts an acoustic signal in a high frequency region is provided.

In this case, the sound generation 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 outputs the sound. It is preferable that the signal is transmitted as an acoustic signal to the signal transmission path (claim 4).

[0014]

According to the acoustic sensor of the invention described in claim 1, when sound is emitted from the speaker and air vibration occurs in the sound generation space of the container body, the air vibration is generated. Vibration is transmitted to the bottom of the container due to In this case, the sound emitted from the speaker tends to be emitted to the outside through the wall portion (defining plate-shaped body) on the front surface side of the container body, but the front surface side of the container body is Since it is covered with the cover member having a heavy structure, the sound is reliably prevented from leaking to the outside.

More specifically, since the bottom surface of the container body comes into contact with the body, sound emission from the bottom surface is blocked by the body, whereas sound emission from the front surface side occurs. This is prevented by the synergistic effect of the soundproofing function of the cover member itself and the sound absorbing function of the air in the auxiliary space.

When the cover member at least on the front surface side is made of a thin elastic member as in the invention described in claim 2, the cover member itself is easily elastically deformed. Sound is properly absorbed and even subtle sound emission to the outside does not occur.

On the other hand, according to the invention described in claim 3, the acoustic signal sent from the acoustic generating means to the speaker through the signal transmission path has at least a high frequency component by the low pass filter or the band pass filter. Be cut. Therefore, only the acoustic signal in the desired frequency range, especially in the low frequency range is transmitted to the speaker. And the air vibration generated by the sound only in the low frequency region is inevitably the vibration of only the low frequency component,
This low frequency vibration is transmitted to the body from the bottom surface of the container body.

In order to select a region which is particularly preferable for the body from the low frequency region, a bandpass filter capable of cutting the extremely low frequency region may be used.

As a practical use mode, when connecting the above-mentioned acoustic sensor to a game machine, it is preferable to adopt the constitution as the invention described in claim 4. That is, the main body of the game machine is provided with the sound generation means that is responsible for sending the sound originally obtained based on the signal from the game progress state control means to the sound output means for the main body of the game machine. Therefore, the acoustic signal emitted from the acoustic generating means is taken out and sent to the speaker through the low pass or band pass filter.

In this way, the user can visually and audibly enjoy the image and sound output from the main body of the game machine while the game is in progress, while vibrating the sound based on the sound in the low frequency region. Therefore, you will be able to enjoy the comfort as well.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below.
A specific description will be given with reference to the drawings.

FIG. 1 is a control system diagram for controlling an acoustic sensor 1 according to the present invention, FIG. 2 is a perspective view showing the appearance of the acoustic sensor 1, FIG. 3 is an exploded perspective view thereof, FIG. FIG. 5 is a vertical sectional view thereof.

First, referring to FIG. 2 to FIG. 5, the acoustic sensor 1 includes a container body 4 which joins two half-split cases 2 and 3 to form an internal space, and the container body 4. A partition plate 5 that divides the internal space of the partition 4 into two parts and a speaker 6 mounted on the partition plate 5 are provided. Then, as shown in FIG. 2, shoulder belts 15, which are wrapped around the user's shoulder, are provided on both side edges of the acoustic sensor 1.
One end of 15 and one end of the flank belts 16 and 16 wound around the flank are connected. Also,
On the surface side portion of the container body 4, a front side cover member 7a for obtaining a soundproof effect by forming the wall portion of the portion into a double structure.
And a back cover member 7b that is in direct contact with the body surface is attached to the back surface side portion of the container body 4.

The container body may be composed of two members, that is, the back half case 3 and the partition plate 5. Therefore, the front half case 2 serves as a front cover member. It will play a role. That is, any structure may be used as long as the sound generation space 11 is defined between the back half case 3 and the defining plate 5, and the front half case 2 (front cover member) and the partition. The airtightness with the plate 5 need not be perfect.

The cover member 7a on the front side of the cover members 2, 7a which are doubly arranged on the front side is made of an elastic material such as rubber in a thin shape.
Is fixed to the surface side of the container body 4 so that the auxiliary space 13 is defined between the double cover members 2 and 7a (see FIGS. 4 and 5). The mounting structure of the cover member 7a on the front surface side to the container body 4 is formed, for example, at an engaging portion such as an engaging claw formed at the outer peripheral edge portion of the cover member 7a and at the outer peripheral edge portion of the container body 4. The engaged portion such as the engaging recess may be detachable. Further, the cover member 7a may be fixed to the container body 4 by using screws, rivets, 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.

On the other hand, the acoustic sensor 1 is connected to a game machine for business use or home use via a signal transmission path as described below.

That is, as shown in FIG. 1, an arcade or domestic game machine 20 has an input means 23 including, for example, a lever 21 and a push button switch 22, and a storage means 24 for storing various game information. , The input means 2
3 and the game progress state control means 2 for determining and controlling the progress state of the game based on signals from the storage means 24.
5, and an image output means 26 and an acoustic output means 27 for respectively receiving an image signal a and an acoustic signal b obtained based on the signal from the game progress control means 25 and performing an image output and an acoustic output to the user, respectively. , Are provided.

More specifically, the image creating 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 based on the signal from the game progress control means 25. Sends the acoustic signal b.

Then, the above-mentioned game progress control means 25
The acoustic signal b from is passed through the filter F, which is a low-pass filter or a band-pass filter, and is input to the speaker 6 as the drive signal b1. In addition,
An amplifier or the like for performing predetermined signal amplification is provided in this signal transmission path.

The low pass filter removes high frequency components from the acoustic signal b from the game progress state control means 25, and is, for example, 120 to 160 Hz.
Only a frequency signal equal to or lower than the above level is input to the speaker 6 as the drive signal b1. For example, 10
When it is desired to generate a vibration within a predetermined range of 0 Hz to 160 Hz, only the frequency signal within this range is used as the drive signal b.
You may make it use the band pass filter for taking out as 1.

Further, in this embodiment, in order to generate sufficient vibration inside the container body 4 and appropriately transmit the vibration to the body, the following structure is adopted.

That is, the materials of the two half-split cases 2 and 3 shown in FIGS. 2 to 5 are the same as the half-split case 2 on the front side.
Has a hard or semi-hard property, whereas the back half case 3 has a soft property. Specifically, for example, the front half case 2 is formed relatively thick with a material such as polypropylene or polyethylene, and the back half case 3 is relatively formed with a material such as polypropylene or polyethylene. Formed thin. In this case, since the bottom surface portion 3x of the back half case 3 is a portion that comes into contact with the user's body, in addition to the curved shape, this portion is thin and slightly bent. It is preferably formed so as to be deformed.

On the other hand, the material of the partition plate 5 is a general resin having hard or semi-hard characteristics, specifically, polypropylene, polyethylene, polystyrene, or the like.
ABS resin, polycarbonate, PWA, FRP, MM
A, ever resin, rubber resin, etc. are used. And
A circular opening 8 is formed in a substantially central portion of the partition plate 5, and a peripheral edge of the opening 8 is formed by using a screw, a rivet, an adhesive agent, or the like at the expanded end peripheral edge of the speaker 6. Fixed. In this case, as shown in FIGS. 4 and 5, the expansion portion side of the speaker 6 is the half case 3 on the back side.
Is oriented toward the bottom surface portion 3x. Therefore, in actual use, the expanded portion side of the speaker 6 is directed toward the user's body side.

Further, a corrugated plate-shaped portion 9 having a corrugated shape composed of a plurality of annular concavo-convex portions 9a which are concentric with the opening 8 is formed on the outer peripheral portion of the opening 8 in the defining plate 5. . The speaker 6 is elastically supported by the corrugated plate portion 9, and the corrugated plate portion 9 flexibly vibrates in association with the vibration of the speaker 6. Further, in the non-formation portion of the corrugated plate-like portion 9 in the partition plate 5, air vibrations can be circulated between the back space 10 and the sound pressure generating space 11 partitioned by the partition plate 5. A through hole 12 is formed for this purpose. If necessary, instead of the through hole 12, for example, a slit may be formed.

However, it has been proved by experiments that, depending on the material of the partition plate 5, sufficient vibration can be secured without forming the corrugated plate-shaped portion 9 and the through hole 12. Therefore, it is preferable to appropriately provide the corrugated plate-shaped portion 9 and the through hole 12 according to the material of the partition plate 5.

Further, as shown in FIG. 3, flange portions 2a and 3a having relatively high rigidity are integrally formed on the outer peripheral edge portions of the two half cases 2 and 3, respectively. Part 2a. The flanges 2a and 3a are fixed to each other with screws, rivets, an adhesive or the like while the outer peripheral edge of the partition plate 5 is held between the flanges 3a. The flange portions 2a and 3a of the two half-split cases 2 and 3 are integrally formed with bulging portions 2b and 3b projecting outward at four locations, respectively. The shoulder belts 15 and the flank belts 16 are inserted and fixed in belt mounting holes 2c and 3c formed in 2b and 3b (see FIG. 4).

In this case, as shown in FIG. 6, the holding case 7 is formed by integrating the front cover member 7a and the back cover member 7b, and the container body 4 is housed therein. You may In the case of such a structure, as shown in the figure, the shoulder belts 15 and the flank belts 1 are provided on both sides of the holding case 7.
6 are connected or integrated. By forming an opening that can be opened and closed with a fastener or the like in a part of the holding case 7 (for example, the back surface), the container body 4 can be easily stored in and taken out from the inside of the holding case 7. Inspection work is simplified.

The material of the holding case 7 is as follows.
Those having relatively soft characteristics such as rubber and resin are used. The holding case 7 is flexibly deformed so that the internal space thereof becomes flat due to the pulling force of the belts 15 and 16 acting on the body when it is attached to the body, and is thereby housed inside. The container body 4 is held without rattling. Further, by accommodating the container body 4 inside the holding case 7, an 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 ensured by the presence of the inwardly projecting portion 7s of the cover member 7a on the front side, even if the holding case 7 is bent and deformed into a flat shape by the pulling force. The presence of the auxiliary space 13 prevents the subtle sound from leaking from the container body 4. Further, the container body housed inside the holding case 7 may be composed of the back half case 3 and the partition plate 5 as described above.

On the other hand, as shown in FIGS. 2 and 5, each of the shoulder belts 15 and the flank belts 16 has elastic stretchable strips 15a having elastic properties such as rubber around the connecting portion to the container body 4. 16a, the other portion is composed of non-stretchable strips 15b and 16b made of a non-stretchable material such as cloth, leather or resin. A large number of through holes 15x and 16x for ensuring air permeability are formed in the elastic stretchable strips 15a and 16a. The belts 15 and 16 may be formed of non-stretchable belts over the entire length.

In this case, as shown in FIG. 8, the other ends of the non-stretchable strips 16b of each of the side belly belts 16 are connected to each other by a metal fitting 16w at the center of the user's abdomen. It is designed to tighten around the abdomen. Further, the other end of the non-stretchable belt-shaped body 15b of each shoulder belt 15 is wrapped around the user's shoulder and hung down to the abdomen through the metal fittings 15w at positions separated by a predetermined dimension from the side belt 16. Are linked together.

Next, the operation of the above embodiment will be described.

As shown in FIGS. 7 and 8, when the user wears the acoustic sensor 1 on the user's back, the shoulder belt 15 and the flank belt 16 are used to securely contact the user's back. Hold it in that condition. In this case, the entire area of the bottom surface portion 3x of the back half case 3 of the acoustic sensor 1 is in contact with the back evenly.

In this state, the user appropriately operates the input means 23 of the game machine 20 shown in FIG.
The image signal a and the sound signal b, which change from moment to moment, are sent to the image output means 26 and the sound output means 27, respectively, and the game proceeds.

While the game is progressing in this way, the sound signal b is sent from the sound generating means 29 based on the signal from the game progress control means 25. It is input to the speaker 6 as a drive signal b1 via a low pass filter (or band pass filter) F. Therefore, the drive signal b1 in the predetermined low frequency region is input to the speaker 6.

As a result, a low-frequency sound pressure is emitted from the speaker 6, and this sound pressure becomes a pressure wave, which first causes air vibration in the sound generation space 11. And
This 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, resulting in air vibration in the entire inner space of the container body 4.

Along with this, the cone paper of the speaker 6 vibrates, so that the speaker 6 itself also vibrates while bending and deforming the corrugated plate-shaped portion 9 of the partition plate 5. As a result, even if the diameter of the speaker 6 is small, the same sound pressure generating effect as if the diameter of the speaker 6 is enlarged is obtained, and it is possible to generate a sufficient level of sound pressure. Therefore, although the speaker 6 built in the acoustic sensor 1 has a small diameter due to its installation space, it is possible to generate sufficient deep bass.

Further, since the vibration of the corrugated plate-shaped portion 9 of the partition plate 5 is also directly propagated to the bottom surface portion 3x of the back half case 3, the user's back is not affected. The sum of the vibration due to the direct propagation from the corrugated plate portion 9 and the air vibration due to the sound pressure is transmitted. Since these vibrations are vibrations caused by the acoustic signal in the predetermined low frequency region, comfortable vibrations are given to the user.

On the other hand, even if sound is continuously emitted from the speaker 6 in order to generate such vibration, the bottom surface 3x of the half case 3 on the back side of the container body 4 comes into contact with the user's back. Therefore, the sound emission of sound from the back side to the outside is blocked by the user's back.

On the other hand, the front side of the front half case 2 is covered with the double-structured cover members 2 and 7a with the auxiliary space 13 interposed, and thus the front side of the half case 2 is exposed to the outside. Sound leakage is also prevented. More specifically, since the cover member 7a on the front surface side is made of rubber or the like in a thin shape, the cover member 7a itself is appropriately bent and deformed, and sound or vibration is generated by the action of air in the auxiliary space 13. It is surely absorbed, and it is possible to prevent subtle sound leakage.

Further, in this embodiment, the expanded end portion side of the speaker 6 is directed toward the bottom surface portion 3a of the back half case 3, and the sound pressure from the speaker 6 is emitted toward the bottom surface portion 3a. For the opposite surface side,
It is not directly affected by sound pressure. In addition to this, since the half case 2 that is the front cover member has a hard or semi-hard characteristic, the structure itself of the acoustic sensor 1 is unlikely to cause sound leakage from the surface side to the outside. It is in a state.

In the above embodiment, the present invention is applied to a rucksack type which gives vibration to the user's back. Similarly, the present invention can be applied.

That is, as shown in FIG. 13, the present invention is applied to a pouch type in which the acoustic sensor 1 is worn around the waist of the user using the waist belt 17.

The acoustic sensor 1 used in this case has an oblong shape in which both side edges are curved as shown in FIG. Its internal structure is shown in FIGS.
As shown in, it is basically the same as the above-mentioned embodiment. Therefore, in FIGS. 9 to 13, the same components as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Even with the configuration of this acoustic sensor 1, the user's comfort due to the vibration only in the low frequency region and the play due to the vibration being incorporated into the game, as in the above-described embodiment, are realized. It goes without saying that advantages such as novelty and reliable soundproofing by the double-structured cover members 2 and 7a can be obtained.

In the above embodiment, the home-use or arcade game machine and the acoustic sensor 1 are connected to each other. However, the apparatus and the acoustic sensor other than the game machine are equipped with the sound generating means. Even if the device 1 is connected, the same effect can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a control system of an embodiment of an acoustic sensor according to the present invention.

FIG. 2 is an external perspective view of the acoustic sensor according to the embodiment.

FIG. 3 is a perspective view of a disassembled component arrangement of the acoustic sensor according to the embodiment.

4 is an enlarged vertical side view taken along line AA of FIG.

5 is an enlarged vertical rear view taken along line BB of FIG.

FIG. 6 is a vertical cross-sectional view showing another example of mounting the body mounting belt of the acoustic sensor according to the embodiment, and is a diagram corresponding to FIG. 5;

FIG. 7 is a schematic diagram showing a usage state of the acoustic sensor according to the embodiment.

FIG. 8 is a schematic diagram showing a usage state of the acoustic sensor according to the embodiment.

FIG. 9 is an external perspective view showing another embodiment of the acoustic sensor according to the present invention.

10 is an enlarged vertical side view taken along the line CC of FIG.

11 is an enlarged vertical rear view taken along the line D-D in FIG. 9. FIG.

12 is a vertical cross-sectional view showing another example of attaching the body-worn belt of the acoustic sensor according to the other embodiment, and FIG.
It is a figure corresponding to 0.

FIG. 13 is a schematic diagram showing a usage state of an acoustic sensor according to another embodiment.

[Explanation of symbols]

 1 Acoustic sensation device 2 Cover member (half case on front side) 3x Bottom part 4 Container body 5 Definition plate 6 Speaker 7a Cover member 13 Auxiliary space 20 Game console body 25 Game progress control means 29 Sound generation means b Sound signal b1 Speaker Drive signal F Low pass filter (band pass filter)

Claims (4)

[Claims] 1. A container body is composed of at least a container portion having a bottom surface portion on the side of contact with the body, and a defining plate-like body on which a speaker is mounted to define a sound generation space between the container portion and the container portion. In addition, in the acoustic sensor configured to cause the bottom surface of the container portion to vibrate based on the sound emitted from the speaker, a double auxiliary structure is provided on the surface side of the container body with a predetermined auxiliary space interposed. An acoustic sensor, comprising a cover member having a structure. 2. The acoustic sensor according to claim 1, wherein at least the cover member on the front surface side of the double-structured cover member is made of a thin elastic member. 3. A low-pass filter that includes sound generating means for transmitting an acoustic signal to the speaker, and cuts at least a high-frequency acoustic signal in the middle of a signal transmission path from the acoustic generating means to the speaker. Alternatively, the acoustic sensor according to claim 1 or 2, wherein a bandpass filter is provided. 4. The sound generation 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
The acoustic sensor according to claim 3, wherein the sound is transmitted to the signal transmission path as an acoustic signal.