JP2006025370A - Speaker unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker unit which provides excellent bodily feelings in simple configuration. <P>SOLUTION: A frame 110 is configured by integrally providing an approximately tubular holding part 113 on a distal end of a bridge part 112 protruded from near four corners of a frame-like part 111 approximately in a shape of a rectangular tube toward an internal center. A magnetic substance 121 for forming a magnetic circuit is held in the holding part, the edge of a diaphragm 122 is mounted on the inner peripheral surface of the frame-like part 111 so as to position a voice coil 123 on the magnetic circuit, the diaphragm 122 is spread while closing the inner periphery of the frame-like part 111, and a speaker body 120 is disposed. A thin film-like cover 130 is mounted over the frame 110 so as to cover the diaphragm 122 while partitioning an air-tight chamber 132. Approximately all the surface of the cover 130 is vibrated with vibration of the diaphragm 122 and excellent bodily feelings can be provided in simple configuration regardless of a position in contact. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a speaker device including a cover that covers a diaphragm.

  Conventionally, a chair having a bodily sensation function that imparts vibration to a user is known. These conventional chairs having a bodily sensation function have a configuration in which vibration is applied by a converter or the like disposed in a seat portion of the chair (see, for example, Patent Document 1 to Patent Document 3).

  In the device described in Patent Document 1, a plurality of passive radiators each including only a diaphragm are attached to a seat surface of a chair body formed of a hollow plastic molded product having a hollow inside and a substantially sealed state. In addition, in the chair, a driver for driving and exciting the passive radiator is attached to the bottom portion of the chair body so as to face the lower portion of the passive radiator with a fixing box. The chair is in contact with the passive radiator by the vibration of the driver to which the vibration signal from the amplifier is applied vibrates the vibration plate of the passive radiator through the pressure change inside the chair body which is in a sealed state. The structure which can be felt as a bodily sensation is taken.

  Moreover, the thing of patent document 2 is provided with the chair-type body sensation support body. A plurality of converters that incorporate a speaker connected to the control means via an amplifier in the pillow part of the sensation supporter and convert the acoustic signals amplified by the amplifier into mechanical vibrations in the backrest part and the leg support part Is provided.

  Furthermore, the thing of patent document 3 has provided the speaker and the vibration unit in the backrest part. This music appreciation chair is configured so that a person who sits down can listen to music and experience vibrations synchronized with the tempo of the audio signal with the vibration unit.

JP-A-8-163675 (2nd page, right column-3rd page, left column, FIG. 1) JP 2001-86581 A (page 3 left column-page 4 right column, FIG. 1) JP 2002-291579 (3rd page left column-4th page left column, FIG. 1)

  However, in the chair having the conventional bodily sensation function as described in Patent Document 1 to Patent Document 3, the structure in which vibration is generated is provided at one place or a plurality of places, so that the user touches the position. If not, you can not feel enough vibration. For this reason, since the physique differs for every user, the problem from which the experience obtained is also mentioned as an example. In addition, in order to configure so as not to cause a difference in the sensation of each user regardless of the physique of the user, for example, it is necessary to arrange a large amount of components that generate vibrations, and there is an example of a problem that the device configuration becomes complicated As mentioned.

  In view of the above, an object of the present invention is to provide a speaker device that can provide a good experience with a simple configuration.

  The invention according to claim 1 is a thin film diaphragm, a magnetic body forming a magnetic circuit, a voice coil located on the magnetic circuit and provided integrally with the diaphragm, and the diaphragm A speaker device comprising: a thin film-like cover that covers at least one surface and can vibrate according to vibration of the diaphragm.

  According to a third aspect of the present invention, there is provided a thin film diaphragm, a magnetic body forming a magnetic circuit, a voice coil located on the magnetic circuit and provided integrally with the diaphragm, and at least the diaphragm And a thin film-like cover that covers at least one surface of the diaphragm by partitioning a substantially airtight inner space on one surface of the speaker device.

  According to a fifth aspect of the present invention, there is provided a cover body having a substantially airtight inner space therein and formed of a thin film member, and disposed in the inner space of the cover body. The diaphragm is integrated with the diaphragm. And a speaker main body provided with a voice coil and a magnetic body provided in the same manner.

[First Embodiment]
A first embodiment of the present invention will be described below with reference to the drawings. In this embodiment, a configuration in which the speaker device of the present invention is used as a mattress that is a bedding will be described as an example. However, the present invention is not limited to this, and can be used as, for example, a cushion or a chair. FIG. 1 is a cross-sectional view showing a schematic configuration of a mattress in the present embodiment. FIG. 2 is an exploded perspective view showing a schematic configuration of the mattress. FIG. 3 is a cross-sectional view in a pressurized state at the position of the valve body showing a schematic configuration of the mattress.

(Composition of mattress)
In FIG. 1, reference numeral 100 denotes a mattress as a speaker device. The mattress 100 is used as a bed bedding (not shown), and outputs a sound signal as a sound and provides vibration corresponding to the sound signal as a bodily sensation. It is taken. The mattress 100 includes a frame 110, a speaker body 120, and a cover 130.

  The frame 110 is formed of, for example, hard synthetic resin, lightweight metal, wood, or the like, and includes a frame-shaped portion 111, a bridge portion 112, and a holding portion 113. The frame-shaped part 111 is formed in a substantially rectangular quadrangular cylinder shape, and the four corners are formed in a substantially arc shape. The frame portion 111 is provided with a terminal 114 to which a sound signal is input. In addition, a plurality of bridge portions 112 that protrude toward the center from the vicinity of the four corners displaced toward the one end side from the center in the axial direction are integrally provided on the inner peripheral surface of the frame-shaped portion 111. Further, a substantially cylindrical holding portion 113 is integrally provided at the distal end portion of the bridge portion 112.

  The speaker main body 120 includes a magnetic body 121, a diaphragm 122, and a voice coil 123. Further, the magnetic body 121 includes, for example, an upper yoke and a lower yoke (not shown) made of a magnetic material, and a magnet (not shown) that is formed in a ring shape and is clamped and fixed to the upper yoke and the lower yoke. The magnetic body 121 forms a magnetic circuit with the magnet, the upper yoke, and the lower yoke, and is integrally attached and fixed to the holding portion of the frame 110 with, for example, an adhesive. The configuration of the magnetic body 121 can be any form such as an inner magnet type or an outer magnet type.

  The diaphragm 122 is formed into a rectangular thin film sheet having substantially the same shape as that of the frame-shaped portion 111 by, for example, a papermaking process that is a papermaking process using fiber as a main component, a plastic injection molding process, a metal thin plate pressing process, or the like. ing. In the vicinity of the periphery of the diaphragm 122, an edge portion 122A having a cross-sectionally bent shape is provided. Further, on the outer peripheral edge of the edge portion 122 </ b> A, an attachment flange (not shown) that is attached and fixed to the inner peripheral surface of the frame-like portion 111 of the frame 110 is provided. Further, a coil bobbin 122B is integrally provided on the diaphragm 122. The coil bobbin 122B is made of the same material as the diaphragm 122 and is formed in a cylindrical shape. The coil bobbin 122B is integrally attached at one end side in the axial direction to the approximate center of the diaphragm 122 with, for example, an adhesive. The diaphragm 122 is attached to the frame-shaped portion 111 at a substantially center in the axial direction of the frame-shaped portion 111, and the coil-shaped bobbin 122 B is positioned on the magnetic circuit of the magnetic body 121. It is stretched so as to close the inner periphery. Examples of the attachment of the diaphragm 122 to the frame 110 include bonding of the attachment flange, and a configuration in which the frame 110 is configured by two members and the attachment flange is clamped and fixed, but is not limited to these methods. It can arrange | position by any method.

  The voice coil 123 is wound around the outer peripheral surface of the coil bobbin 122B. The voice coil 123 is wound so as to be positioned on the magnetic circuit of the magnetic body 121. The lead wires 123A at both ends of the wire of the voice coil 123 are drawn out, and these lead wires 123A are connected to the terminals 114 of the frame 110 and serve as sound data input ends. Note that the lead-out line 123A is preferably wired to the terminal 114 provided on the frame-shaped portion 111 via the bridge portion 112 of the frame 110.

  The cover 130 is a thin film member such as synthetic resin or rubber, for example, and is a cover that is formed in a substantially rectangular dome shape that has the same shape as the frame-shaped portion 111 of the frame 110 and opens on one side. A pair of one-side cover bodies 131 are provided. That is, the one-surface covering body 131 is provided in a series of substantially rectangular sheet-shaped contact surface portions 131A corresponding to the outer peripheral surface of the frame-shaped portion 111 of the frame 110, and the outer peripheral surface of the frame-shaped portion 111 provided around the contact surface portion 131A. The mounting surface 131B has a corresponding substantially rectangular tube shape, and is formed in a substantially rectangular dome shape with one surface opened. The cover 130 is bonded in a substantially air-tight manner to the outer peripheral surface of the frame-shaped part 111 with the contact surface part 131A of the one-sided cover 131 blocking the axial end surface of the frame-shaped part 111. The cover 130 is configured to include the speaker main body 120 together with the frame 110 in a substantially airtight manner. In this attached state, an airtight chamber 132 serving as a substantially airtight internal space is defined between the diaphragm 122 and the contact surface portion 131A. In this hermetic chamber 132, for example, air is sealed substantially hermetically. As the gas, any gas such as air, nitrogen gas, carbon dioxide gas, and inert gas such as helium gas can be used. Further, a solid material that does not significantly affect the vibration of the diaphragm, such as a soft member such as feathers or a lightweight member, may be enclosed.

  For example, as shown in FIG. 3, the mattress 100 is provided with a valve body 140. The valve body 140 is provided, for example, in a state of penetrating the cover body 130 in the frame-shaped portion 111 of the frame 110, and can communicate with the outside of each hermetic chamber 132 defined between the cover body 130 and the diaphragm 122. The structure which obstruct | occludes is taken. That is, the valve body 140 is configured to be able to flow a gas such as air or an inert gas into the airtight chamber 132 or to flow the gas in the airtight chamber 132 to the outside. FIG. 3 illustrates a state in which the inside of the hermetic chamber 132 is higher than atmospheric pressure, and is a schematic diagram in which the frame 110, the magnetic body 121, the coil bobbin 122B, and the voice coil 123 are omitted. The valve body 140 allows gas to flow into a state where tension is further applied to the cover body 130 at a pressure higher than atmospheric pressure by a pump or the like, or gas flows out to the extent that the cover body 130 does not have much tension. However, the present invention is not limited to a configuration using a pump. For example, a user may directly flow in, like a balloon, or the mattress 100 may be squeezed out. Configuration can be applied.

(Mattress operation)
Next, the operation of the mattress 100 will be described with reference to the drawings. In addition, in this 1st Embodiment, although the form which mounts and uses on the floor surface 10 is illustrated, it uses in any form, such as installing in a bed and using on the water. Is possible. FIG. 4 is an explanatory diagram showing a use state of the mattress.

  First, the mattress 100 is placed on the floor surface 10. Then, an output terminal of an output device (not shown) that outputs sound data is connected to the terminal 114 of the mattress 100. Here, examples of the output device include a television, a radio, an audio device, a personal computer, and a player that reads and outputs sound data recorded on a recording medium. Examples of the recording medium include optical disks such as CD (Compact Disc) and DVD (Digital Versatile Disc) or magneto-optical disks, magnetic disks such as HD (Hard Disk) and FD (Flexible Disk), and memory cards. As the sound data, any signal (current) that can move the coil bobbin in the axial direction by the current flowing through the voice coil can be used, and any device that outputs such an electrical signal can be targeted. For example, the use of a clock with an alarm function can be exemplified.

  When the sound data from the output device is input to the terminal 114, the coil bobbin 122B moves in the axial direction corresponding to the magnitude of the output of the sound data, and the diaphragm 122 vibrates. Due to this vibration, the air in the hermetic chamber 132 partitioned on both surfaces of the diaphragm 122 is expanded and contracted, and the contact surface portion 131A of the cover 130 is vibrated corresponding to the expanded and contracted state. As shown in FIG. 3, when the user X lies on the mattress 100, the cover 130 is hollow with an airtight chamber 132 defined therein, so that the user X contacts with the physique of the user X. The surface portion 131A comes into close contact. As a result, vibration according to expansion / contraction in the hermetic chamber 132 is well transmitted to the user X, and a bodily sensation corresponding to sound data and listening to the reproduced sound can be obtained satisfactorily.

(Matte effect)
As described above, in the first embodiment, the diaphragm covers at least one surface side of the thin film diaphragm 122 integrally provided with the voice coil 123 positioned on the magnetic circuit formed by the magnetic body 121. A thin film-like cover 130 that can vibrate according to the vibration of 122 is provided. For this reason, the cover 130 covering the diaphragm 122 is contacted with the cover 130 of the mattress 100 by the expansion and contraction of the air in the hermetic chamber 132 that becomes a gap between the cover 122 and the diaphragm 122 due to vibration according to the sound data of the diaphragm 122. Almost the same vibration is obtained on the entire surface of the surface portion 131A, and the vibration of the diaphragm 122 can be directly obtained as a good bodily sensation regardless of the position of the mattress 100. In particular, by providing the cover body 130 in a state where the substantially airtight chamber 132 is partitioned and formed by the vibration plate 122, vibration corresponding to the vibration of the vibration plate 122 is generated even when the user X is in contact with the cover body 130. According to the physique of the user X, it can be transmitted well, and a good sensation can be provided regardless of the physique.

  Since the cover body 130 is provided in a state of partitioning the hermetic chamber 132, a configuration for directly transmitting the vibration of the diaphragm 122 to the cover body 130 can be easily obtained, productivity can be improved, and the cost can be reduced. Can be easily provided.

  In addition, a cover 130 is provided so as to cover the diaphragm 122 in a state in which the hermetic chamber 132 is partitioned on both sides of the diaphragm 122. Therefore, the mattress 100 can be used on any surface, and usability can be improved.

  Further, the cover 130 is formed so as to enclose the speaker main body 120. For this reason, the structure which transmits a vibration favorably to the user X is obtained easily, and the improvement of manufacturability is obtained easily. Furthermore, the speaker main body 120 is protected by the cover body 130, is not easily damaged, and the usability can be further improved. Furthermore, since it forms with a sheet-like member, even if a cover body tears, it can repair easily.

  In addition, a pair of one-side covers 131 are attached in a state of covering from both sides to form a cover 130 in a state of including the speaker main body 120. For this reason, productivity can be improved more.

  A frame 110 that holds the periphery of the diaphragm 122 and the magnetic body 121 is used, and a cover is attached to the frame 110. For this reason, the structure which the diaphragm 122 and the cover body 130 do not contact is obtained easily, while being able to obtain a favorable bodily sensation, the mattress 100 can be well retained in a substantially rectangular shape and the usability can be further improved.

  Furthermore, the diaphragm 122 covers and forms the inside of the body substantially at the center in the axial direction of the frame-shaped portion 111 of the frame 110. For this reason, the volume of the two airtight chambers 132 that are partitioned is substantially equal, and a good experience can be obtained without any difference between the two surfaces.

  Further, the frame 110 is configured such that the bridge portion 112 bridges between the holding portion 113 that holds the magnetic body 121 and the substantially cylindrical frame-like portion 111. For this reason, it is easy to configure one speaker device in the mattress 100 with a simple configuration.

  A terminal 114 is provided on the frame-shaped portion 111 of the frame 110. For this reason, the structure which supplies sound data to the speaker main body 120 in the state enclosed by the cover body 130 like the mattress 100 is easily obtained. In particular, the lead wire 123A can be easily manufactured by wiring on the inner surface of the bridge portion 112 and the frame portion 111 of the frame 110.

  Further, a valve body 140 that closes the hermetic chamber 132 defined between the cover body 130 and the diaphragm 122 so as to be able to communicate with the outside is provided in the frame-shaped portion 111 of the frame 110. For this reason, for example, even when the pressure in the hermetic chamber 132 is lowered, it can be adjusted so that a predetermined pressure can be obtained by introducing air from the outside, and usability can be improved. Further, since the valve body 140 is provided, the vibration state of the air in the hermetic chamber 132 or the cover 130 is appropriately operated to draw out or increase the air in the hermetic chamber 132 to a pressure higher than the atmospheric pressure. The vibration state of can be changed. For this reason, sound quality can be changed and usability can be further improved.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 5 is an explanatory diagram of a usage situation showing a schematic configuration of the chair in the second embodiment. FIG. 6 is a perspective view showing the frame. In addition, although the structure installed and utilized on a floor surface is illustrated, it is good also as a structure with a leg called not only this but what is called a chair. And about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted or simplified.

(Composition of chair)
The second embodiment shown in FIG. 5 exemplifies a configuration in which the speaker device of the present invention is used as a chair, and the frame-like portion in the first embodiment is divided into two in plan view. The speaker main body 120 is disposed in each partitioned area. That is, in FIG. 5, reference numeral 200 denotes a chair as a speaker device, and the chair 200 includes a frame 210, a speaker main body 120, and a cover 130.

  The frame 210 has a frame-like portion 211 shown in FIG. The frame-like portion 211 is formed by bending the frame-like portion 111 according to the first embodiment approximately in the middle in the longitudinal direction with a member that can be deformed by, for example, a synthetic resin having a shape retaining property or a cloth member. Is formed. In other words, the frame-like portion 211 is a plate-like end plate portion that connects a pair of longitudinal plate-like side plate portions 211A formed in a substantially square shape in plan view, and both longitudinal end portions of these side plate portions 211A. 211B and a plate-shaped partition wall 211C connected to each other at a position where the side plate portion 211A bends. In the frame-like portion 211, two speaker chambers 212 are defined by a partition wall 211C. Further, the frame 210 is provided with a bridge portion 112 similar to the frame-like portion 111 of the first embodiment in a state substantially positioned on the diagonal line of the speaker chamber 212, and at the distal end portion of these bridge portions 112 A holding unit 113 is provided for each speaker chamber 212.

  As in the first embodiment, the chair 200 is provided with a diaphragm 122 having a coil bobbin 122B around which the voice coil 123 is wound so as to close the speaker chamber 212. Further, similarly to the first embodiment, the magnetic body 121 is disposed in the holding portion 113 of the frame 210, and the speaker main body 120 is disposed in the speaker chamber 212. Further, as in the first embodiment, the chair 200 is provided with a cover 130 so as to cover the diaphragm, that is, so as to enclose each speaker main body 120 together with the frame 210, and the airtight chamber 132 is formed as a compartment. Has been. The partition wall of the frame 210 has side edges connected to the inner surface of the cover body 130, and partitions the speaker chambers 212 in a substantially airtight manner.

(Chair movement)
Next, the operation of the chair 200 will be described. In addition, in this 2nd Embodiment, although the usage pattern which lies on the wall surface 20 on the floor surface 10 is illustrated, it is not restricted to this.

  First, the chair 200 is placed on the floor surface 10 so as to lie on the wall surface 20. Then, an output terminal for outputting sound data of the output device is connected to the terminal 114 of the chair 200. When sound data is output from the output device, the coil bobbin 122B moves in the axial direction corresponding to the magnitude of the output of the sound data input to the terminal 114, and each diaphragm 122 in the speaker chamber 212 vibrates. To do. Due to this vibration, each airtight chamber 132 of each speaker chamber 212 expands and contracts similarly to the first embodiment, and the contact surface portion 131A of the cover 130 vibrates corresponding to this expansion and contraction. As a result, when the user X leans against the chair 200 as shown in FIG. 5, the contact surface portion 131 </ b> A comes into close contact with the physique of the user X, and accordingly, according to the vibration of each diaphragm 122. The vibration corresponding to the expansion and contraction of the air in the airtight chamber 132 is transmitted to the user X well, so that the sensation corresponding to the sound data and the reproduction of the reproduced sound can be obtained well.

(Effect of chair)
As described above, in the second embodiment, as in the first embodiment, a thin-film vibration integrally provided with the voice coil 123 located on the magnetic circuit formed of the magnetic body 121 is used. A thin film-like cover 130 that covers at least one surface side of the plate 122 and can vibrate according to the vibration of the vibration plate 122 is provided. Therefore, the speaker in the cover 130 of the chair 200 is formed by the expansion and contraction of the air in the hermetic chamber 132 that forms a gap between the cover 130 covering the vibration plate 122 and the vibration plate 122 due to vibration according to the sound data of the vibration plate 122. The same vibration is obtained in the region of the contact surface portion 131A corresponding to the chamber 212, and the vibration of each diaphragm 122 can be obtained directly as a bodily sensation regardless of the position of the chair 200, and the user X A good body sensation can be obtained regardless of the physique or the contact position.

  Further, in addition to the first embodiment, in the configuration covering the two surfaces of the backrest portion and the seat portion, the speaker chamber 212 for accommodating the speaker main body 120 for each surface is defined by the partition wall provided in the frame 210. Even if it can be formed and the shape extends over the other surface, such as the chair 200, a configuration in which a body sensation can be appropriately obtained at any position can be easily obtained.

[Modification of Embodiment]
In addition, this invention is not limited to each embodiment mentioned above, The deformation | transformation shown below is included in the range which can achieve the objective of this invention.

  In other words, the present invention is not limited to use as the mattress 100 or the chair 200, and may be used as, for example, a cushion 300 for sitting on the back as shown in FIG. Furthermore, as shown in FIG. 9, two cushions 300 are used like a chair 200, or two or more cushions 300 are connected to form a chair 200, You may comprise as follows.

  Further, as shown in FIG. 10, for example, as shown in FIG. 10, the frames 110 and 210 are not provided on the diagonal line, but provided with a bridge portion 112 on a substantially cross shape from the approximate center of each surface, provided radially, or provided with a bridge portion 112 in parallel. As a configuration for holding the magnetic body 121, such as holding the holding portion 113 with one bridge portion 112, any configuration can be used.

  Furthermore, although it has been configured such that the user X can feel it by directly contacting it, it may be configured such that the vibration of the cover 130 can be experienced via the vibration of the air by holding the hand over the contact surface portion 131A. In such a case, for example, like the speaker device 400 shown in FIG. 11, the frame 310 is formed by forming the frame 311 with a hard wooden board or the like, or only the portion to be vibrated, that is, the frame The cover body 130 may be provided only on the one surface side of the 311, and the back surface side may be closed with a lid member 312 constituting the frame 310. In FIG. 11, the same reference numerals are given to the same configurations as those in the above embodiments. As described above, since almost the entire surface of the cover 130 vibrates, vibration corresponding to the sound data can be obtained even if the hand is held without touching. For this reason, for example, it is possible to recognize the reproduction status of sound data for a user who is difficult to listen to by voice output, and it is necessary to move by groping by providing it in the dark or in an emergency route. Even in this case, a good guidance and guidance can be obtained with an appropriate experience. Further, in the embodiment shown in FIG. 11, a hole is provided in the lid member 312 so as to communicate with the outside, and the airtight chamber 132 is substantially hermetically partitioned only on one side, or the other side is opened without providing the lid member 312. It may be configured. As described above, in the configuration in which the airtight chamber 132 is not partitioned on the other surface side, the vibration state of the diaphragm 122 changes from the case where the airtight chamber 132 is partitioned, and the vibration state and the sound data to be reproduced change. What is necessary is just to design suitably corresponding to a form etc.

  Moreover, although the terminal 114 was provided in the frame-shaped parts 1111, 211, and 311 of the frames 110, 210, and 310, it may be provided in any position, for example, in the cover 130 itself. Further, a configuration may be adopted in which a terminal facing the outer surface is not provided, such as supplying sound data using a wireless medium in a state where a current corresponding to the sound data flows through the voice coil 123.

  Furthermore, although the valve body 140 is provided and described, the valve body 140 may not be provided and the pressure in the airtight chamber 132 may not be adjusted. Moreover, as the valve body 140, as described above, any configuration that can flow in and out the gas in the hermetic chamber 132 can be used.

  In the second embodiment, the configuration has been described in which it is placed on the floor surface 10 and laid on the wall surface 20, but for example, the frame 210 is formed of a hard member that cannot be deformed, so that it can be laid on the wall surface. The chair 200 can be used on a hard member with a substantially bent cross-sectional shape, or can be configured to have legs. . Further, a configuration in which the bending angle of the side plate portion can be changed, for example, a reclining mechanism may be provided so that the angle can be changed. Accordingly, the present invention can be applied to a usage pattern similar to that of the mattress 100, and versatility can be improved.

  In addition, the specific structure and procedure for carrying out the present invention can be changed as appropriate to other structures and the like within the scope of achieving the object of the present invention.

[Effect of the embodiment]
As described above, in the above-described embodiment, at least one surface side of the diaphragm integrally provided with the voice coil 123 positioned on the magnetic circuit formed by the magnetic body 121 is covered, and according to the vibration of the diaphragm 122. A thin film-like cover is provided so as to vibrate. For this reason, the cover body 130 covering the diaphragm 122 vibrates equally over almost the entire surface of the cover body 130 due to expansion / contraction of the gap between the cover body 130 and the diaphragm 122 due to vibration according to the sound data of the diaphragm 122. The vibration of the diaphragm 122 can be directly obtained as a good experience even if it touches any of the positions, and a good experience can be easily obtained with a simple configuration regardless of the physique of the user X or the contact position. .

  In the above embodiment, a thin film-like cover is provided in a substantially airtight chamber 132 on at least one surface of the diaphragm integrally provided with the voice coil 123 positioned on the magnetic circuit formed by the magnetic body 121. Is provided so as to cover at least one surface side of the diaphragm 122. For this reason, the cover body 130 covering the diaphragm 122 vibrates equally over almost the entire surface of the cover body 130 due to the expansion and contraction of the hermetic chamber 132 with the diaphragm 122 due to vibration according to the sound data of the diaphragm 122. The vibration of the diaphragm 122 can be directly obtained as a bodily sensation regardless of any position of 130, and a good bodily sensation can be easily obtained with a simple configuration regardless of the physique of the user X or the position of contact. It is done.

  Furthermore, in the above-described embodiment, a speaker including a diaphragm, a voice coil integrally provided on the diaphragm, and a magnetic body in a substantially airtight inner space in the cover 130 formed of a thin film member. A main body is disposed. For this reason, the diaphragm 130 is covered with the diaphragm 122 through the gap, and almost the entire surface of the cover 130 is made equal by expansion / contraction of the gap with the diaphragm 122 due to vibration according to the sound data of the diaphragm 122. Even if it vibrates and touches any position of the cover body 130, the vibration of the diaphragm 122 can be directly obtained as a sensation, and a good sensation can be easily obtained regardless of the physique of the user X or the contact position. It can be easily obtained with a simple configuration.

It is sectional drawing which shows schematic structure of the mattress which concerns on 1st Embodiment in the speaker apparatus of this invention. It is a disassembled perspective view which shows schematic structure of the mattress in the said 1st Embodiment. It is sectional drawing of the pressurization state in the position of the valve body which shows schematic structure of the mattress in the said 1st Embodiment. It is explanatory drawing which shows the use condition of the mattress in the said 1st Embodiment. It is explanatory drawing of the use condition which shows schematic structure of the chair which concerns on 2nd Embodiment in the speaker apparatus of this invention. It is a perspective view which shows the flame | frame in the said 2nd Embodiment. It is sectional drawing which shows schematic structure of the cushion which concerns on other embodiment in the speaker apparatus of this invention. It is explanatory drawing of the other use condition which shows schematic structure of the cushion which concerns on the said other embodiment. It is explanatory drawing of the further another use condition which shows schematic structure of the cushion which concerns on the said other embodiment. It is a top view which shows schematic structure of the flame | frame which concerns on other embodiment in the speaker apparatus of this invention. It is sectional drawing which shows schematic structure of further another embodiment in the speaker apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Mattress as speaker apparatus 110,210,310 Frame 111, 211,311 Frame-shaped part 112 Bridge part 113 Holding part 120 Speaker main body 121 Magnetic body 122 Diaphragm 123 Voice coil 130 Cover body 132 Airtight chamber 140 as internal space 140 Valve Body 200 Chair as speaker device 300 Cushion as speaker device 400 Speaker device

Claims (9)

A thin-film diaphragm,
A magnetic body forming a magnetic circuit;
A voice coil located on the magnetic circuit and provided integrally with the diaphragm;
A thin film-like cover that covers at least one surface of the diaphragm and can vibrate according to the vibration of the diaphragm;
A speaker device comprising: The speaker device according to claim 1,
The speaker device according to claim 1, wherein the cover is provided in a state of partitioning a substantially airtight chamber on at least one surface side of the diaphragm. A thin-film diaphragm,
A magnetic body forming a magnetic circuit;
A voice coil located on the magnetic circuit and provided integrally with the diaphragm;
A thin film-like cover body that partitions at least one surface side of the diaphragm by partitioning a substantially airtight inner space on at least one surface side of the diaphragm;
A speaker device comprising: The speaker device according to any one of claims 1 to 3,
The speaker device according to claim 1, wherein the covers are provided on both sides of the diaphragm. A cover body having a substantially airtight internal space and formed of a thin film member;
A speaker main body provided with a diaphragm, a voice coil and a magnetic body provided integrally with the diaphragm, disposed in the internal space of the cover;
A speaker device comprising: The speaker device according to claim 5,
The speaker device, wherein the diaphragm is provided in a state of partitioning an internal space of the cover. The speaker device according to any one of claims 1 to 6,
Comprising a frame for holding the periphery of the diaphragm and the magnetic body;
The speaker is characterized in that the cover is provided on the frame so as to cover the diaphragm. The speaker device according to claim 7,
The frame includes a holding part that holds a magnetic body, a frame-like part that holds the periphery of the diaphragm, and a bridge part that connects the holding part and the frame-like part. Speaker device. The speaker device according to any one of claims 1 to 8,
A speaker device comprising: a valve body that closes an internal space defined between the cover body and the diaphragm so as to communicate with the outside.

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