JP2020174334A - Acoustic cushion device - Google Patents

Abstract

To make it possible to improve a transmission efficiency of a vibration of a speaker unit to a part that a body contacts so that a vibration of a sound output from the speaker unit is made to be as regular as possible in transmitting to the body.SOLUTION: A tubular body 10, for supporting all or part of a body, formed of a flexible member, having openings 11 at both ends is provided. At one end and the other end of the tubular body 10, a pair of holding bodies 20 having a tubular body holding portion 22 for holding the corresponding ends of the tubular body 10 on the backside is provided, respectively. A through-hole 24 communicating with the tubular body 10 is formed in at least one of the pair of holding bodies 20. A speaker holding portion 26 for holding a speaker unit 1 on the front side so that the front surface faces outward and the rear surface faces the through-hole 24 is provided. The speaker unit 1 is held in the speaker holding portion 26, and a cushion member 30 is housed in the tubular body 10.SELECTED DRAWING: Figure 2

Description

The present invention relates to an acoustic cushioning device that elastically supports all or part of the body by receiving its weight and is provided with a speaker unit so that sound and its vibration can be transmitted to the body.

In general, cushioning materials that allow the entire or part of the body to lean and receive the weight of the body include, for example, the seats of various chairs such as stools and sofas, backrests, armrests, headrests, etc. Various types of cushions, beds, mattresses to be laid on the floor, pillows, cushions, etc. are known. Further, there is also known an acoustic cushioning device provided with a speaker unit in these cushioning properties and capable of transmitting sound and its vibration to the body.

Conventionally, as this type of acoustic cushioning device, for example, the technique described in Japanese Patent Application Laid-Open No. 2006-20163 (Patent Document 1) is known. As shown in FIG. 15, this acoustic cushioning device Sa is composed of the backrest of an automobile seat, and is attached to a hard support plate 101 provided on the rear side of the seat portion 100 and a front side of the support plate 101. The cushion member 102, the sound absorbing member 103 attached to the front side of the cushion member 102, the skin 104 covering the support plate 101, the cushion member 102 and the sound absorbing member 103, and the back surface of the support plate 101 facing the inside of the cushion member 102. It is configured to include a cone-shaped speaker unit 105. The speaker unit 105 is attached to the support plate 101 with its front side facing backward and its back side facing forward on the occupant side on which it is seated.

When the sound is output from the speaker unit 105, the sound is transmitted to the seated occupant through the air in the room and vibrates the air inside the backrest, and the vibration is vibrated through the cushion member 102, the sound absorbing member 103, and the skin 104. It is transmitted and you can feel the sound from multiple angles.

Japanese Unexamined Patent Publication No. 2006-20163

By the way, in the above-mentioned conventional acoustic cushioning device Sa, the air vibration inside the backrest is transmitted to the body while being damped through the cushion member 102, the sound absorbing member 103 and the skin 104, but the speaker unit 105 Since the cushion member 102, the sound absorbing member 103, and the skin 104 are soft, the direct vibration is difficult to transmit, so that the transmission efficiency to the part where the body comes into contact is poor, and the vibration of the sound output from the speaker unit 105 is regular. There was a problem that it was sometimes difficult to experience it as vibration of sound. Therefore, for example, in the case of the sound of a musical instrument, the sound becomes blurry, and it becomes difficult to discriminate the type of the musical instrument by experience.

The present invention has been made in view of such problems, and improves the transmission efficiency of the vibration of the speaker unit to the portion where the body contacts, and the vibration of the sound output from the speaker unit is as regular vibration as possible. It is an object of the present invention to provide an acoustic cushioning device that can be transmitted to the body.

The acoustic cushioning device of the present invention for achieving such an object elastically supports all or a part of the body by receiving the weight thereof, and also includes a speaker unit to receive sound waves and vibrations from the speaker unit. In the acoustic cushioning device that transmits to the body
A tubular body that supports all or part of the body and is formed of a flexible member and has openings at both ends is provided, and one end and the other end of the tubular body correspond to the tubular body, respectively. A pair of holding bodies provided with a tubular body holding portion for holding the end portion on the back side are provided, and a through hole communicating with the tubular body is formed in at least one of the pair of holding bodies, and a through hole communicating with the tubular body is formed on the front side thereof. A speaker holding portion for holding the speaker unit so that its front surface faces outward and its rear surface faces the through hole is provided, the speaker unit is held in the speaker holding portion, and a cushion member is housed in the tubular body. It has a structure.

In the present invention, the tubular body can retain its tubular shape when placed vertically in the axial direction, and is flexible to some extent even when placed horizontally in the axial direction, but is tubular. A material having a certain degree of rigidity that can retain its shape. Further, the flexible member constituting the tubular body has a function of attenuating sound waves and vibrations, and one or more of them should be selected from a group of resin materials, cloth materials, leather materials, rubber materials, paper materials and composite materials thereof. Can be done. Further, the cushion member itself may have sound absorbing property, or may not have sound absorbing property by itself, such as a coil spring, and an appropriate cushion member may be used. From the speaker unit, not only human voice but also various sounds that can be recognized by human hearing such as music and electronic sounds can be output by an acoustic drive device such as an amplifier.

As a result, when using this device, all or part of the body is supported by the tubular body. Since the tubular body is formed of a flexible member and a cushion member is housed in the tubular body, all or part of the body receives the weight and is elastically supported, and comfort is obtained. .. Then, when the sound is output from the speaker unit in this state, the sound from the speaker unit is propagated to the outside air and transmitted to the body through the air, and the vibration of the speaker unit is transmitted to the holding body, the tubular body, and the like. It is transmitted to the body through the cushion member, and the sound can be felt from multiple angles. In this case, since the tubular body formed of the flexible member attenuates sound waves and vibration together with the cushion member in the case of the cushion member having sound absorbing property, unnecessary sounds such as resonance sound are compared with the hard member. Is extremely reduced, and the generation of sounds other than the target sound is suppressed. Therefore, the vibration of the sound output from the speaker unit can be made into a regular vibration as much as possible and transmitted to the body.

In particular, since the holding body holds the end portion of the tubular body, the vibration of the speaker unit extends from the opening of the tubular body to the entire circumference of the wall portion of the tubular body along the axial direction of the tubular body. Since it is transmitted uniformly, it is possible to improve the transmission efficiency of the vibration of the speaker unit to the part where the body comes into contact with the body, and the vibration of the sound output from the speaker unit is regular. It can be made into vibration and transmitted to the body reliably. As a result, for example, in the case of the sound of a musical instrument, the sound becomes sharper, and the type of the musical instrument can be easily discriminated by experience. Further, in the present invention, since the speaker unit is located at the end of the tubular body, the speaker unit can be easily arranged near the user's ear. When placed near the ear, it is possible to easily experience not only vibration but also high sound quality from the speaker unit.

Then, if necessary, when the tubular body is bent to have a circular cross section, the diameter D is set to 30 mm ≦ D ≦ 200 mm. Desirably, 90 mm ≦ D ≦ 150 mm. As a result, vibration transmission is performed more uniformly and reliably, and vibration transmission performance can be improved. The thinner the tubular body, the higher the rigidity, so the thickness of the tubular body can be reduced. However, when D <30 mm, it becomes difficult to secure the flexibility, the damping of sound waves and vibrations tends to be insufficient, and the cushioning property deteriorates. When 200 mm <D, the width becomes wide and the uniformity of vibration transmission is inferior.

Further, if necessary, a plurality of the tubular bodies are provided in a row, the tubular body holding portions are provided in a plurality of rows corresponding to each tubular body on the back side of the holding body, and the speaker holding portions are provided. At least one of the pair of holding bodies is provided so as to correspond to each tubular body. The area that receives the body can be increased without deteriorating the vibration transmission performance. That is, for example, in the case of the backrest of a seat, when the entire backrest is composed of a large tubular body, vibration is dispersed and it is not preferable, but in comparison with this, a plurality of small tubular bodies are provided to provide the backrest. Since it can be configured, it is possible to reliably transmit the vibration without dispersing the vibration.

Further, if necessary, it is effective to provide a group body including the tubular body, a pair of holding bodies for holding the tubular body, and a cushion member, and to connect a plurality of the group bodies. Also in this case, the area for receiving the body can be widened without deteriorating the vibration transmission performance. That is, for example, in the case of a mattress in which the human body lies down, it is not preferable that the vibration is dispersed when the entire mattress is composed of a large tubular body, but in comparison with this, a plurality of small tubular bodies are arranged in a backrest. Since the above can be configured, the vibration can be reliably transmitted without dispersing the vibration.

Further, if necessary, the tubular body is formed by forming a resin-made non-breathable sheet-like member into a tubular shape. While maintaining the damping performance of sound waves and vibrations, the vibrations of the speaker unit can be reliably and evenly transmitted along the axial direction of the tubular body through the holder, making the vibrations even more regular and to the body. Can be communicated.

Furthermore, if necessary, the holding body is provided with a plate-shaped main body, and the tubular body holding portion is projected from the back surface of the main body to fit the opening of the tubular body. It is formed by ridges. Since the tubular body is fitted and held in the ridge, the holding is ensured and the vibration can be transmitted even more evenly.

In this case, it is effective to make the ridge into a flat ring shape. The whole can be flattened, and it is possible to easily secure the bearing surface of the body.

Further, if necessary, the speaker holding portion is provided with a case body having a space that communicates with and penetrates the through hole, and one end of the case body is attached to the surface of the main body, and the other end of the case body is provided. The outer peripheral edge of the speaker unit is attached so that the back surface side of the speaker unit faces the space.
As a result, when the dimension in the thickness direction of the speaker unit is larger than the dimension in the thickness direction of the tubular body, the speaker unit can be held without increasing the dimension in the thickness direction of the holder. It is possible to secure the body's bearing function by the body.

Further, at least one of the tubular body and the holding body is formed with a ventilation hole communicating with the tubular body. When the weight of the body is applied to the tubular body, the air inside can be discharged from the ventilation holes, the cushion member can be reduced, and the tubular body can be recessed, so that cushioning can be ensured. .. It is desirable to provide this ventilation hole at a position as far as possible from the speaker unit.

Furthermore, if necessary, the cushion member is provided with a porous resin elastic member having sound absorption. Examples of the porous resin elastic member include a so-called sponge, which is to be stored, so that sound absorption can be improved and cushioning can be satisfactorily imparted.
Further, if necessary, the cushion member is provided with a coil spring that can expand and contract in a direction orthogonal to the axial direction of the tubular body. Although the coil spring itself does not have sound absorption, it can provide good cushioning.

In this case, it is effective to store the sound absorbing member in the tubular body. As the sound absorbing member, for example, cotton, glass wool, or the like can be used as appropriate. The sound absorbing action of the tubular body can be compensated for, and the damping performance of sound waves and vibrations can be reliably ensured.

According to the present invention, when sound is output from the speaker unit, the sound from the speaker unit is propagated to the outside air and transmitted to the body through the air, and the vibration of the speaker unit is transmitted to the holding body, the tubular body, and the like. It is transmitted to the body through the cushion member, and the sound can be felt from multiple angles. In this case, since the tubular body formed of the flexible member attenuates sound waves and vibration together with the cushion member in the case of the cushion member having sound absorbing property, unnecessary sounds such as resonance sound are compared with the hard member. Is extremely reduced, and the generation of sounds other than the target sound is suppressed. Therefore, the vibration of the sound output from the speaker unit can be made into a regular vibration as much as possible and transmitted to the body. In particular, since the holding body holds the end portion of the tubular body, the vibration of the speaker unit extends from the opening of the tubular body to the entire circumference of the wall portion of the tubular body along the axial direction of the tubular body. Since it is transmitted uniformly, it is possible to improve the transmission efficiency of the vibration of the speaker unit to the part where the body comes into contact with the body, and the vibration of the sound output from the speaker unit is regular. It can be made into vibration and transmitted to the body reliably. As a result, for example, in the case of the sound of a musical instrument, the sound becomes sharper, and the type of the musical instrument can be easily discriminated by experience.

It is a perspective view which shows the acoustic cushion device which concerns on 1st Embodiment of this invention. It is an exploded perspective view which shows the acoustic cushion device which concerns on 1st Embodiment of this invention. It is a front sectional view which shows the acoustic cushion device which concerns on 1st Embodiment of this invention. It is a top view which shows the tubular body in the acoustic cushion device which concerns on 1st Embodiment of this invention. It is a figure which shows the use state of the acoustic cushion device which concerns on 1st Embodiment of this invention. It is a front sectional view which shows the acoustic cushion device which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the acoustic cushion device which concerns on 3rd Embodiment of this invention. It is a front sectional view which shows the acoustic cushion device which concerns on 3rd Embodiment of this invention. It is a perspective view which shows the acoustic cushion device which concerns on 4th Embodiment of this invention. It is a front sectional view which shows the acoustic cushion device which concerns on 4th Embodiment of this invention. It is a figure which shows the use state of the acoustic cushion device which concerns on 4th Embodiment of this invention. It is a perspective view which shows the acoustic cushion device which concerns on 5th Embodiment of this invention. It is a vertical sectional view which shows the acoustic cushion device which concerns on 6th Embodiment of this invention. It is a side partial sectional view which shows another example of a cushion member in the acoustic cushioning apparatus which concerns on embodiment of this invention. It is sectional drawing which shows an example of the conventional acoustic cushioning apparatus.

Hereinafter, the acoustic cushioning device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
1 to 5 show an acoustic cushion device S according to a first embodiment of the present invention. As shown in FIG. 5, this acoustic cushion device S is mainly used by leaning against the backrest Ca of various chairs C such as theater seats, automobile seats, and sofas.

The acoustic cushion device S elastically supports all or a part of the body by receiving the weight thereof, and is provided with the speaker unit 1 to transmit the sound from the speaker unit 1 and its vibration to the body. The speaker unit 1 can output not only human voice but also various sounds recognizable by human hearing such as music and electronic sounds by an acoustic drive device such as an amplifier (not shown). In the embodiment, the speaker unit 1 is of a well-known cone type, and is provided at the cone-shaped diaphragm 2, the frame 3 to which the opening edge of the diaphragm 2 is attached, and the base end portion of the frame 3. It is configured to include a yoke 4.

Further, the present device S includes a tubular body 10 that supports all or a part of the body and is formed of a flexible member and has openings 11 at both ends. The tubular body 10 can retain its tubular shape when placed vertically in the axial direction, and can retain its tubular shape to some extent even when placed horizontally in the axial direction, although it bends to some extent. Has the rigidity of. The flexible member constituting the tubular body 10 has a function of attenuating sound waves and vibrations, and is a resin material such as PVC, PER, TPE, EVA, a cloth material, a leather material, a rubber material such as NBR or natural rubber, and the like. One or more can be selected from the paper material and the composite material group thereof. In the embodiment, the tubular body 10 is formed by forming a resin-made non-breathable sheet-like member into a tubular shape, and for example, transparent PVC (polyvinyl chloride) is used. As shown in FIGS. 2 and 4, the thickness t is 1 mm ≦ t ≦ 6 mm, and the diameter D when bent to have a circular cross section is 30 mm ≦ D ≦ 200 mm, preferably 90 mm ≦ D ≦ 150 mm. The length L is set to 400 mm ≦ L ≦ 800 mm. Specifically, for example, t = 2 mm, D = 100 mm, L = 500 mm.

Further, a plurality of tubular bodies 10 are arranged in a row in a direction orthogonal to the axial direction. In the embodiment, two tubular bodies 10 are arranged in a row with a slight interval.

Further, a pair of holding bodies 20 having a tubular body holding portion 22 for holding the corresponding end portion of the tubular body 10 on the back side are provided at one end and the other end of the tubular body 10, respectively. There is. There are two types of the holding body 20, and the holding body 20 includes a holding body 20A that holds one end of the tubular body 10 and a holding body 20B that holds the other end of the tubular body 10.

The holding body 20 (one holding body 20A and the other holding body 20B) includes a main body 21 made of an elongated plate-shaped hard resin. A plurality (two in the embodiment) of the tubular body holding portions 22 are arranged on the back side of the main body 21 along the longitudinal direction thereof so as to correspond to each tubular body 10. The tubular body holding portion 22 is formed of a flat ring-shaped ridge 23 that protrudes from the back surface of the main body 21 and into which the opening 11 of the tubular body 10 fits. The ridge 23 is made of a hard resin made of the same material as the main body 21, and is integrally molded with the main body 21. The end face on which the opening 11 of the tubular body 10 is formed is in contact with the back surface of the main body 21.

On the other hand, the main body 21 of the holding body 20A is formed with a through hole 24 communicating with the tubular body 10 held by the tubular body holding portion 22. A pair of through holes 24 are provided on the left and right end sides in the longitudinal direction of the main body 21 so as to correspond to each tubular body 10. On the other hand, the main body 21 of the holding body 20B is formed with a ventilation hole 25 communicating with each tubular body 10. As a result, each tubular body 10 is held by the one-side holding body 20A and the other holding body 20B, and when fitted to the tubular body holding portion 22, becomes flat and supports the back of the body. become able to. The whole can be flattened and the bearing surface of the body can be secured.

Further, on the front side of the main body 21 of the holding body 20A, a speaker holding portion 26 for holding the speaker unit 1 so that the front surface thereof faces outward and the rear surface faces the through hole 24 is provided. A pair of speaker holding portions 26 are provided corresponding to each tubular body 10. The speaker holding portion 26 is made of a hard resin made of the same material as the main body 21, and includes a case body 27 having a space that communicates with and penetrates the through hole 24. One end of the case body 27 is attached to the surface of the main body 21 with an adhesive or the like. An outer peripheral edge portion of the frame 3 of the speaker unit 1 is attached to the other end of the case body 27 so that the back surface side of the speaker unit 1 faces the space. Reference numeral 28 is a sound-permeable cover that covers the surface side of the speaker unit 1. As a result, the present device S is provided with two speaker units 1. Therefore, the sound can be output in stereo.

Since the speaker holding portion 26 is configured to include the case body 27, as shown in FIG. 2, when the thickness direction dimension Eb of the speaker unit 1 is larger than the thickness direction dimension Ea of the tubular body 10. The speaker unit 1 can be held without increasing the thickness Ec of the holding body 20, and the body bearing function of the tubular body 10 can be ensured.

Further, a cushion member 30 is housed in each tubular body 10. The cushion member 30 may be any member as long as it imparts elasticity. In the embodiment, the cushion member 30 is made of a porous resin elastic member having sound absorbing properties. Examples of the porous resin elastic member include a well-known so-called sponge. Further, a sound absorbing member 31 made of cotton is attached to and stored in the cushion member 30 in the tubular body 10. Further, the tubular body 10, one holding body 20A, the other holding body 20B, the speaker unit 1 and the cover 28 are covered with a bag-shaped cover (not shown) such as cloth.

Therefore, according to this acoustic cushion device S, as shown in FIG. 5, it is mainly used by leaning against the backrest Ca of various chairs C such as theater seats, automobile seats, and sofas. When seated on the chair C, the back of the body is supported by the tubular body 10, the tubular body 10 is formed of a flexible member, and the cushion member 30 is housed in the tubular body 10, so that the body The weight of the back is received and it is elastically supported, providing comfort. In this case, since the other holding body 20B is formed with a ventilation hole 25 communicating with the tubular body 10, when the weight of the body is applied to the tubular body 10, the internal air is discharged from the ventilation hole 25. Since the tubular body 10 can be recessed by reducing the cushion member 30 by pulling it out, cushioning property can be ensured. Since the cushion member 30 is a porous resin elastic member, cushioning properties can be satisfactorily imparted.

Then, when the sound is output from the speaker unit 1 in this state, the sound from the speaker unit 1 is propagated to the outside air and transmitted to the body through the air, and the vibration of the speaker unit 1 is transmitted to the holding body 20, It is transmitted to the body through the tubular body 10 and the cushion member 30, and the sound can be sensed from various angles. In this case, since the tubular body 10 and the cushion member 30 formed of the flexible member attenuate the sound waves and vibrations, the generation of unnecessary sounds such as resonance sounds is extremely reduced as compared with the hard members, and the target sound. The occurrence of other than is suppressed. Therefore, the vibration of the sound output from the speaker unit 1 can be made into a regular vibration as much as possible and transmitted to the body.

In particular, since the holding body 20 holds the end portion of the tubular body 10, the vibration of the speaker unit 1 extends from the opening 11 of the tubular body 10 to the entire circumference of the wall portion of the tubular body 10 to form the tubular body. Since the sound is uniformly transmitted along the axial direction of 10, the vibration transmission efficiency of the speaker unit 1 with respect to the portion in contact with the body can be improved as compared with the conventional case, and the output from the speaker unit 1 is increased accordingly. The vibration of the sound to be made can be made into a regular vibration and surely transmitted to the body. As a result, for example, in the case of the sound of a musical instrument, the sound becomes sharper, and the type of the musical instrument can be easily discriminated by experience. Further, in the embodiment, since the speaker unit 1 is located at the end of the tubular body 10, the speaker unit 1 can be easily arranged near the user's ear. When placed near the ear, it is possible to easily experience not only vibration but also high sound quality from the speaker unit 1.

Further, when the tubular body 10 is bent to have a circular cross section, its diameter D is 30 mm ≦ D ≦ 200 mm, preferably 90 mm ≦ D ≦ 150 mm, so that vibration transmission is more uniform and reliable. This is done and the vibration transmission performance can be improved. Further, since the two tubular bodies 10 are arranged in a row, the area for receiving the body can be widened without deteriorating the vibration transmission performance. That is, when the whole is composed of a large tubular body, the vibration is dispersed and is not preferable. However, in comparison with this, since a plurality of small tubular bodies 10 are arranged in a row, the vibration is not dispersed and the vibration is generated. Can be reliably transmitted.

Further, since the tubular body 10 is formed by forming a non-breathable sheet-like member made of resin into a tubular shape, the vibration of the speaker unit 1 is transmitted through the holding body 20 while maintaining the damping performance of sound waves and vibrations. It becomes possible to reliably and evenly transmit along the axial direction of the tubular body 10, and it is possible to transmit the vibration to the body even more regularly. Furthermore, since the tubular body 10 is fitted and held in the ridge 23 of the tubular body holding portion 22, vibration can be transmitted even more evenly. Further, since the sound absorbing member 31 made of cotton is housed in the tubular body 10, the sound absorbing action of the tubular body 10 and the cushion member 30 can be compensated for, and the sound wave and vibration damping performance can be improved. It can be surely secured.

FIG. 6 shows the acoustic cushion device S according to the second embodiment of the present invention. This acoustic cushion device S has substantially the same configuration as the acoustic cushion device S according to the first embodiment, but unlike the above, the other holding body 20B is the same as the one holding body 20A. It is formed and includes a speaker holding portion 26. A ventilation hole 25 communicating with the tubular body 10 is formed in the center of the tubular body 10. Two speaker units 1 are attached to one tubular body 10, and four speaker units 1 are attached in total. By outputting the same kind or different kinds of sounds from each speaker unit 1, it is possible to increase the sense of presence and power. Other actions and effects are the same as above.

7 and 8 show the acoustic cushion device S according to the third embodiment of the present invention. This acoustic cushion device S is used by leaning against the backrest Ca of various chairs C, similarly to the acoustic cushion device S according to the first embodiment. In the acoustic cushion device S according to the third embodiment of the present invention, unlike the above, four tubular bodies 10 are arranged in a row at a slight interval. In accordance with this, four tubular body holding portions 22 are formed on the one holding body 20A and the other holding body 20B, respectively. On the other hand, the holding body 20A is formed with four speaker holding portions 26. Also by this, by outputting the same kind or different kinds of sounds from each speaker unit 1, it is possible to increase the sense of presence and power. Other actions and effects are the same as above.

9 to 11 show the acoustic cushion device S according to the fourth embodiment of the present invention. This acoustic cushion device S is mainly used as a mattress on which the human body lies down. This is configured by connecting a plurality of group bodies G1, G2, and G3 (three in the embodiment) including a tubular body 10, a pair of holding bodies 20 for holding the tubular body 10, and a cushion member 30. There is.

Specifically, each group body G1, G2, G3 includes a speaker unit 1 similar to the above. Further, the tubular body 10 similar to the above is provided. The length L of the tubular body 10 is set to, for example, 800 mm ≦ L ≦ 1200 mm so that the human body can lie down. Further, a plurality of tubular bodies 10 are arranged in a row. In the embodiment, four tubular bodies 10 are arranged in a row with a slight interval.

Further, similarly to the above, the one-side holding body 20A and the other-side holding body 20B for holding each tubular body 10 are provided. Each of the holding body 20A and the holding body 20B has a main body 21 made of an elongated plate-shaped hard resin, and four tubular body holding portions 22 are provided in a row on the back surface of the main body 21. The tubular body holding portion 22 is formed of a substantially circular ridge 23, and is integrally molded with the main body 21. Further, the main body 21 of the one holding body 20A and the other holding body 20B is formed with four through holes 24 communicating with the tubular body 10 held by the tubular body holding portion 22, respectively. Further, on the front side of the main body 21, a speaker holding portion 26 for holding the speaker unit 1 so that the front surface thereof faces outward and the rear surface faces the through hole 24 is provided. Four speaker holding portions 26 are provided corresponding to each tubular body 10. Similar to the above, the speaker holding portion 26 includes a case body 27 having a space that communicates with and penetrates the through hole 24. One end of the case body 27 is attached to the surface of the main body 21 with an adhesive or the like. An outer peripheral edge portion of the frame 3 of the speaker unit 1 is attached to the other end of the case body 27 so that the back surface side of the speaker unit 1 faces the space. The front surface side of the speaker unit 1 is covered with a cover (not shown). As a result, one group body G1 (G2, G3) is provided with eight speaker units 1. Further, in the center of the tubular body 10, a ventilation hole 25 communicating with each tubular body 10 is formed.

As a result, in the group bodies G1, G2, and G3, each tubular body 10 is held by the one holding body 20A and the other holding body 20B. Further, a cushion member 30 and a sound absorbing member 31 similar to those described above are housed in each tubular body 10. Further, the tubular body 10, one holding body 20A, the other holding body 20B, the speaker unit 1, and the cover can be covered with a bag-shaped cover such as cloth. Then, the three group bodies G1, G2, and G3 having the above configuration are sequentially connected by the connecting tape 40 (FIG. 11) as the connecting means. In the case of the connecting tape 40, the group bodies G1, G2, and G3 can be folded at this portion, and can be made compact when not in use. When used, it can be deployed to a length that allows the human body to lie down.

Therefore, according to this acoustic cushion device S, when using, each group body G1, G2, G3 is unfolded, and the human body is laid down on this. Then, when the sound is output from the speaker unit 1 in this state, the sound from the speaker unit 1 is propagated to the outside air and transmitted to the body through the air, and the vibration of the speaker unit 1 is transmitted to the holding body 20, It is transmitted to the body through the tubular body 10 and the cushion member 30, and the sound can be sensed from various angles. In this case, since the tubular body 10 and the cushion member 30 formed of the flexible member attenuate the sound waves and vibrations, the generation of unnecessary sounds such as resonance sounds is extremely reduced as compared with the hard members, and the target sound. The occurrence of other than is suppressed. Therefore, the vibration of the sound output from the speaker unit 1 can be made into a regular vibration as much as possible and transmitted to the body.

In particular, since the holding body 20 holds the end portion of the tubular body 10, the vibration of the speaker unit 1 extends from the opening 11 of the tubular body 10 to the entire circumference of the wall portion of the tubular body 10 to form the tubular body. Since the sound is uniformly transmitted along the axial direction of 10, the vibration transmission efficiency of the speaker unit 1 with respect to the portion in contact with the body can be improved as compared with the conventional case, and the output from the speaker unit 1 is increased accordingly. The vibration of the speaker can be made into a regular vibration and surely transmitted to the body. As a result, for example, in the case of the sound of a musical instrument, the sound becomes sharper, and the type of the musical instrument can be easily discriminated by experience. Further, since a plurality of small tubular bodies 10 are arranged in a row, it is not preferable that the vibration is dispersed when the whole is composed of a large tubular body, but in comparison with this, the vibration is not dispersed. Can be reliably transmitted. Other actions and effects are the same as above.

FIG. 12 shows the acoustic cushion device S according to the fifth embodiment. This is configured in substantially the same manner as the acoustic cushion device S according to the fourth embodiment, but unlike the above, one speaker unit 1 and one speaker holding portion 26 are provided for each tubular body 10. It is provided. In the one holding body 20A and the other holding body 20B, the speaker unit 1 and the speaker holding portion 26 are alternately provided with their phases shifted. The through hole 24 to which the speaker unit 1 and the speaker holding portion 26 cannot be attached serves as a ventilation hole. This also produces the same actions and effects as described above.

FIG. 13 shows the acoustic cushion device S according to the sixth embodiment. This is configured as the backrest Ca itself of various chairs C such as a stool and a sofa. It has substantially the same configuration as the acoustic cushion device S according to the first or third embodiment. In order to maintain the function as the backrest Ca, it can be reinforced with a reinforcing member. This also produces the same actions and effects as described above. In particular, since the speaker unit 1 is placed near the user's ear, it is possible to easily experience not only vibration but also high sound quality from the speaker unit 1.

FIG. 14 shows another example of the cushion member 30. The cushion member 30 is composed of a plurality of coil springs that can expand and contract in a direction orthogonal to the axial direction of the tubular body 10. In FIG. 14, reference numeral 41 is a cover made of a flexible member such as a cloth or leather that covers the tubular body 10.

In the above embodiment, the speaker holding portion 26 is configured to include the case body 27, but the present invention is not necessarily limited to this, and the speaker unit 1 is mounted on the surface of the main body 21 without using the case body 27. That is, the surface itself of the main body 21 may be configured as the speaker holding portion 26, and may be appropriately changed. Further, the material and the number of the tubular body 10 are not limited to those described above, and may be appropriately changed. Further, the material of the cushion member 30 is not limited to that described above. Furthermore, in the above embodiment, a cone type speaker unit 1 is used, but the present invention is not necessarily limited to this, and various types such as a horn type, an electrostatic type, and a ribbon type are used. Anything may be used, and it may be changed as appropriate.

Further, in the above embodiment, the present invention is applied to a device used by leaning against the backrest Ca of the chair C and a device used as a mattress, but the present invention is not necessarily limited to this, and other devices such as a stool and a sofa are used. Of course, it can be applied to various chairs such as seats, armrests, headrests, beds, pillows, cushions, etc. In short, the invention is not limited to the embodiments of the invention described above, and those skilled in the art will make many modifications to these exemplary embodiments without substantial departure from the novel teachings and effects of the invention. It is easy to make, and many of these modifications are within the scope of the present invention.

S Acoustic cushioning device C Chair Ca Backrest 1 Speaker unit 10 Cylindrical body 11 Opening 20 Holding body 20A One holding body 20B Other holding body 21 Main body 22 Cylindrical body holding part 23 Protrusion 24 Through hole 25 Ventilation hole 26 Speaker holding part 27 Case body 28 Cover 30 Cushion member 31 Sound absorbing member G1, G2, G3 Group body 40 Connecting tape (connecting means)
41 Cover

Claims (12)

In an acoustic cushion device that elastically supports all or part of the body by receiving its weight and is provided with a speaker unit to transmit the sound from the speaker unit and its vibration to the body.
A tubular body that supports all or part of the body and is formed of a flexible member and has openings at both ends is provided, and one end and the other end of the tubular body correspond to the tubular body, respectively. A pair of holding bodies provided with a tubular body holding portion for holding the end portion on the back side are provided, and a through hole communicating with the tubular body is formed in at least one of the pair of holding bodies, and a through hole communicating with the tubular body is formed on the front side thereof. A speaker holding portion for holding the speaker unit so that its front surface faces outward and its rear surface faces the through hole is provided, the speaker unit is held in the speaker holding portion, and a cushion member is housed in the tubular body. An acoustic cushioning device characterized by this. The acoustic cushion device according to claim 1, wherein when the tubular body is bent to have a circular cross section, its diameter D is set to 30 mm ≦ D ≦ 200 mm. A plurality of the tubular bodies are provided in a row, a plurality of tubular body holding portions are provided in a row corresponding to each tubular body on the back side of the holding body, and the speaker holding portions are provided of the pair of holding bodies. The acoustic cushioning device according to claim 2, wherein at least one of them is provided so as to correspond to each tubular body. The acoustic according to claim 2 or 3, wherein a group body including the tubular body, a pair of holding bodies for holding the tubular body, and a cushion member is provided, and a plurality of the group bodies are connected to each other. Cushion device. The acoustic cushion device according to any one of claims 1 to 4, wherein the tubular body is formed by forming a resin-made non-breathable sheet-like member into a tubular shape. The holding body is configured to include a plate-shaped main body, and the tubular body holding portion is formed by a ring-shaped ridge projecting from the back surface of the main body and fitting an opening of the tubular body. The acoustic cushioning device according to any one of claims 1 to 5. The acoustic cushioning device according to claim 6, wherein the ridge is formed into a flat ring shape. A case body having a space through which the speaker holding portion communicates with the through hole is provided, one end of the case body is attached to the surface of the main body, and one end of the case body is attached to the other end of the case body of the speaker unit. The acoustic cushioning device according to any one of claims 1 to 7, wherein the outer peripheral edge portion of the speaker unit is attached so that the back surface side faces the space. The acoustic cushioning device according to any one of claims 1 to 8, wherein a vent hole communicating with the tubular body is formed in at least one of the tubular body and the holding body. The acoustic cushion device according to any one of claims 1 to 9, wherein the cushion member is provided with a porous resin elastic member having sound absorbing property. The acoustic cushioning device according to any one of claims 1 to 10, wherein the cushion member includes a coil spring that can expand and contract in a direction orthogonal to the axial direction of the tubular body. The acoustic cushion device according to claim 10 or 11, wherein the sound absorbing member is housed in the tubular body.

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