JP2000325879A - Multifunction type sound producing body and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the contact of parts, such as a yoke and a coil, and the generation of abnormal sounds by inclination of a vibration part at the time of vibration and to efficiently produce a multifunction type sound producing body as the multifunction type sound producing body which generates both of sound and vibration. SOLUTION: This sound producing body is constituted by cross-sectionally setting a second sound diaphragm 25 for supporting the vibration part, such as the yoke 27, at nearly same height as the height of the coil 24. The sound producing body is provided with a flexible and air permeable rocking preventive film 29 on the opposite side of the sound producing body 25 across the vibration part and the outer periphery is fixed to a cover A(21). The projecting part 30 in the central part of the vibration part is detained to the rocking preventive film 29. As a result, the rocking of the vibration part is regulated in this portion and does not incline any more. The cover 21 is provided with a connecting terminal 35 having a spring property to facilitate the assembly to an apparatus. The sound producing body 25 and the connecting terminal 35 are manufactured by progressive pressing of a belt material. A cover B(22) is insert-formed and blanked through in the state of the belt material. The parts obtained by integrating these parts are produced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional sounding body which is incorporated in a mobile communication device such as a mobile phone or a pager to notify a user of an incoming call by sound or vibration.

[0002]

2. Description of the Related Art In general, such portable devices are configured so that they can be switched between emitting a buzzer sound or a melody sound to notify a user of an incoming call and vibrating without generating a sound. Therefore, a sound-generating body for generating sound similar to a small speaker and a vibrating body that generates vibration by rotating an eccentric weight with a small motor have been adopted. Incorporating both a sounding body and a vibrating body in this way was disadvantageous in terms of miniaturization and cost reduction of equipment, but in recent years,
Some sounding bodies that generate both sound and vibration have appeared. Such a sounding body is a multifunctional one that can be used for voice output during conversation in a hands-free state.

FIG. 6 is a sounding body disclosed in Japanese Patent Application Laid-Open No. 10-229596, wherein FIG. 6A is a sectional view, FIG. 6B is a bottom view, and FIG. It is a cross section. The outer periphery of a circular first diaphragm 3 is adhered to the upper surface of a case constituted by the cover 1 and the bottom plate 2, and the coil 4 is fixed to the lower surface of the first diaphragm 3. In addition, a second
The outer periphery of the diaphragm 5 is fixed, and a magnet 6 having a top plate 8 and a yoke 7 are fixed at the center of the second diaphragm 5. The magnet 6, the yoke 7, and the top plate 8 form a magnetic circuit, and the coil 4 is located in a magnetic gap formed by the outer periphery of the top plate 8 and the inner periphery of the recess of the yoke 7. The terminal 9 of the coil winding is guided to the outside of the sounding body through a hole provided in the cover 1.

[0004] The second diaphragm 5, the magnet 6, the top plate 8 and the yoke 7 fixed thereto form a magnetic circuit and constitute a vibrating portion. As shown in FIG. 5 has several cuts 10 to adjust the characteristics of the vibration system. When an electric signal having a certain frequency is supplied to the coil 4, an electromagnetic force acts between the coil 4 and the magnetic circuit to start oscillating with each other. At this time, if the frequency of the electric signal is high to some extent and is in the audible frequency range,
The vibration of the first diaphragm 3 to which the coil 4 is fixed increases, and a buzzer sound, a melody sound or a voice is generated according to the type of the signal. On the other hand, the second diaphragm 5 has a lower natural frequency. Almost no vibration. When a signal having a relatively low frequency lower than the audible frequency band is applied, no sound is output from the first diaphragm 3, and instead the vibration of the second diaphragm 5 to which the magnet 6 and the yoke 7 are fixed increases, This vibration is transmitted via the cover 1 to the portable device incorporating the sounding body,
Notify the user of the incoming call. In this way, one sounding body performs two operations, sounding and vibration.

FIG. 7 is a sounding body disclosed in Japanese Patent Application Laid-Open No. 10-215499, and FIG.
(B) is a bottom view, and (A) is a VI-VI cross section of (B). The outer periphery of the first diaphragm 13 is fixed on the upper surface side of the cover 11, while the outer periphery of the second diaphragm 15 is fixed on the lower surface of the cover 11. A deep dish-shaped weight 18 is fixed to the second diaphragm 15, and a yoke 17 is attached to the inside of the weight 18. The coil 14 is mounted on the outer periphery of a flat cylindrical center pole at the center of the yoke 17. An annular magnet 16 is fixed to the outside thereof. Further, a third diaphragm 19 is fixed to the upper surface of the weight 18, and supports the weight 18 and components integrated therewith with respect to the cover 11. Therefore, while the coil 14, the magnet 16, and the yoke 17 form a magnetic circuit, the second diaphragm 15,
The vibration system is supported by the third diaphragm 19. Second
The diaphragm 15 and the third diaphragm 19 are suspensions having arms as shown by a solid line and a broken line in FIG.
The arms have substantially the same shape but are mounted in the opposite directions to balance the support of the vibrating part.

When a signal current having an audible frequency flows through the coil 14, the first diaphragm 13 vibrates due to the attraction of the magnetic circuit by the coil 14, the magnet 16, and the yoke 17, and generates a buzzer sound, a melody sound or a voice. appear. When the frequency of the signal is low and in the mechanical vibration region, no sound is produced from the first diaphragm 13, while the second diaphragm 15, the third diaphragm 19, the coil 14, the magnet 16, the yoke 17, and the weight 18 The vibrating system vibrates to notify the user of the incoming call. The weight 18 has nothing to do with the electromagnetic action, but is for increasing the vibration energy by increasing the mass of the vibrating part, so that the air inside the sounding body can enter and exit to prevent the sound pressure and vibration from lowering. Is provided with an air vent hole 20.

[0007]

The above-mentioned prior arts, though useful, have the following problems. In the conventional example shown in FIG. 6, a second magnet having a magnet 6 and a yoke 7 is mounted.
The diaphragm 5 is near the lower surface, while the coil 4 is above and the cross-sectional arrangement of the two is different. For this reason,
Vibration performed by the second diaphragm 5 and the vibrating part composed of the components on the second diaphragm 5 in response to the low-frequency electric signal is basically a simple up-and-down motion, but a slight unbalance in the shape and dimensions of the components. It tends to tilt due to factors such as: That is, as shown in FIG. 8, the yoke 7 at the position shown by the broken line at the time of rest moves while tilting as shown by the solid line at the time of vibration. Then, in FIG. 6A, the upper part of the yoke 7 and the top plate 8 swing right and left,
Abnormal sound is generated when the coil 4 is hit, or operation is disturbed. Further, in the configuration in which the coil terminal 9 is put out of the hole in the wall of the cover 1, the coil terminal must be soldered to the counterpart circuit board when the vibrating body is incorporated into the device, and it takes time to assemble. .

In the conventional example shown in FIG. 7, the vibrating portion is supported by the second diaphragm 15 and the third diaphragm 19 with the upper and lower surfaces of the weight 18 interposed therebetween. Unlike the one described above, the vibrating portion is prevented from tilting like the yoke 7 in FIG. While the sounding body in FIG. 6 is an electrodynamic type while the sounding body in FIG. 7 is an electromagnetic type, the structure in which the upper and lower portions of the vibrating portion are supported by two diaphragms as shown in FIG. It can also be applied to an electrodynamic sounding body such as. According to this configuration, the inclination of the vibrating portion is avoided, but the use of two diaphragms increases the manufacturing cost and management cost of parts and increases the cost of the product. Further, as in the case of FIG. 6, there is also a problem that the coil terminal must be soldered to a circuit into which the coil terminal is incorporated. The present invention solves these problems, and realizes a multifunctional sounding body with a simple structure and high reliability, and a method for efficiently manufacturing the same.

[0009]

In order to solve the above-mentioned problems, according to the present invention, first, a second diaphragm for supporting a vibrating portion for generating mechanical vibration is cross-sectionally mounted as shown in FIG. Move it to the same height as the coil, not the position shifted from
Thus, even if the vibrating portion tends to tilt during operation, the second
Lateral displacement of components such as magnets and yokes mounted on the diaphragm is small near the coil, so that the vibrating portion does not come into contact with the coil.

Next, at the place where the second diaphragm was conventionally,
A flexible anti-vibration film is provided to fix the outer periphery to the cover of the sounding body, and the central portion of the vibrating section including the yoke and the like is locked to the anti-vibration film. As a result, the vibration of the vibrating part is restricted by the lateral vibration prevention film, and the vibration part is almost completely prevented from tilting. The anti-vibration film is made of plastic or the like, and is a flexible film part made of mesh cloth or provided with many small holes to improve ventilation. Since it is low, the influence on the vibration characteristics is small.

Further, as another matter of the present invention, a connection terminal having a spring property is provided on a cover of the sounding body, and a terminal of a coil winding is soldered to the connection terminal. In this case, electrical connection can be obtained only by bringing the connection terminal into contact with the circuit pattern of the device at the time of assembling, and it becomes unnecessary to solder the coil terminal of the sounding body to the circuit of the device.

Further, as still another aspect of the present invention, the second diaphragm and the connection terminal are structured such that a part thereof is embedded in a cover. This eliminates the need to glue or heat stake to secure these components to the cover.

Still another aspect of the present invention is a method for manufacturing the sounding body, wherein the second diaphragm and the connection terminal are continuously manufactured by progressive press working using a strip. Since the plastic cover is molded as it is by inserting the second diaphragm and the connection terminal, the sounding body can be manufactured very efficiently. In the case of gold plating on the soldering part of the connection terminal that solders the end of the coil winding or the contact part that comes in contact with the mating pattern, form the connection terminal before plating, or apply at the band material stage Gold plated in place.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are drawings of a first embodiment of a sounding body according to the present invention. FIG. 1A is a top view in which some components are removed, and FIG. 1B is a cross-sectional view taken along line BB of FIG. is there. In FIG. 8B, a plastic cover A (21) and a cover B (22) are joined to form a case. On the upper surface side, the outer periphery of the disk-shaped first diaphragm 23 formed of polyimide, polyester or the like and having a curved cross section is adhered to the shoulder 33 on the inner periphery of the cover B (22). A coil 24 is fixed to the lower surface of the. At the same height as the coil 24, there is a second diaphragm 25 made of metal such as stainless steel, which is a suspension member having four arms as seen in plan view as shown in FIG. In FIG. 1A, the first diaphragm 23 in FIG. 1B is omitted for easy understanding.

The second diaphragm 25 is fixed with the outer ends of the four arms embedded in a cover B (22). Second diaphragm 25
A yoke 27 made of a magnetic material such as pure iron or permalloy is joined to the lower surface by spot welding or the like.
The magnet 26 is fixed in the recess, and a top plate 28 made of a magnetic material is provided on the upper surface of the magnet 26. Top plate 28
The coil 24 is located in a magnetic gap formed by the outer circumference of the yoke 27 and the inner circumference of the yoke 27. The reason why the thickness of the cylindrical portion on the outer periphery of the yoke 27 is increased is to obtain a sufficiently large vibration energy by increasing the mass of the vibrating portion. A flange 31 is formed on the outer periphery of the yoke, and the flange 31 is formed by shoulders 32 and 3 of the case.
3 between the recesses 34.

A circular anti-vibration film 2 is provided on the lower surface side of the sounding body.
9, which is made of a plastic material or the like and is made of a mesh cloth or a porous film having a number of small holes so as to have air permeability, and the outer periphery is covered with a shoulder 3 of the inner periphery of the cover A (21).
2, and the central convex portion 30 of the yoke 27 is adhered to the central portion with an adhesive or a double-sided tape.

In this sounding body, a connection terminal 35 having a spring property such as a stainless material is provided partially embedded in the cover B (22), and the terminal 37 of the coil winding is connected to the connection terminal 35.
Is soldered to the soldering portion 38 of FIG. At the end of the connection terminal 35, a contact portion 36 raised so as to make point contact with the circuit pattern is provided. In order to improve the wettability of the solder of the soldering portion 38 and reduce the contact resistance of the contact portion 36, the connection terminal 35 is plated with gold.

FIG. 2 is a bottom view of the sounding body of FIG. 1, showing the anti-lateral shake film 29 largely removed. The flange portions 31 of the yoke 27 are not formed in a continuous shape, but are provided at several locations on the outer periphery of the yoke (four locations in FIG. 2). Similarly, the shoulder 32 of the cover A (21) is not continuous, and the yoke 2
It is partially provided at a position overlapping the second flange 31.

The basic operation of the sounding body shown in FIGS. 1 and 2 is the same as that of the prior art. When a signal current of an audible frequency is supplied to the coil 24, the first diaphragm 23 vibrates to generate a buzzer sound, a melody, When an audible sound such as a voice is emitted and a signal having a lower frequency is used, the second yoke 27 and the magnet 26 are integrated.
The diaphragm 25 vibrates, and this vibration is transmitted to the portable device in which the sounding body is incorporated via the cover A (21) and the cover B (22). The vibrating portion tends to tilt as shown in FIG. 8 during vibration due to slight imbalance or the like, but as shown in the cross-sectional view of FIG. Since the plate 28 has almost the same height in the cross-sectional arrangement,
Even when the vibrating part is tilted, the planar positional relationship of these components changes only slightly, and the components are less likely to rub against each other and generate abnormal noise or disturb the operation.

Further, the inclination of the vibrating portion is further suppressed by locking the central portion of the lower surface of the vibrating portion to the lateral shake prevention film 29. Since the lower surface of the vibrating portion is at a height different from that of the second diaphragm 25, when the vibrating portion is tilted, the lateral vibration becomes larger than that of the upper top plate 28 and the like. 29, and the anti-lateral shake film 29 is flexible and does not hinder the vertical vibration of the vibrating part.
The lower surface of the vibrating part is regulated so that it hardly shakes in a plane. As a result, the inclination of the vibrating part is almost completely eliminated.

As shown in FIG. 1B, the flange 31 on the outer periphery of the yoke 21 is inserted into the recess 34 on the inner periphery of the case. Even if the user accidentally removes the sounding body or a device incorporating the sounding body, even if the vibrating portion is going to be greatly displaced by an impact, the flange portion 31 is not provided with the upper and lower shoulder portions 32, 3, 3.
3, the second diaphragm 25 is permanently deformed, or the yoke 27 and the top plate 28
It is possible to prevent the parts from being deformed or damaged by colliding with the diaphragm 23 and the coil 24 fixed thereto. The fact that the lateral shake prevention film 29 supports the lower surface of the yoke 27 also helps buffering.

The vibrating portion composed of the second diaphragm 25, the yoke 27 and other components includes a cover A (21) and a cover B (2).
2) It is contained in a space surrounded by the first diaphragm 23 and the anti-lateral shake film 29. If the degree of sealing of this space is high,
A large fluid resistance is generated with respect to the movement of the yoke 27 having the first diaphragm 23 and the flange 31, so that a desired sound pressure or vibration force cannot be obtained. Therefore, a mesh cloth or a porous film is used as the lateral shake prevention film 29 to improve the inside and outside ventilation. Further, as shown in FIG. 2, the reason why the flange portion 31 and the shoulder portion 32 are formed in a discontinuous and dispersed shape is to open the space therebetween to improve the flow of air.

FIG. 3 is a sectional view of a second embodiment of the present invention. 1B is different from FIG. 1B in the joint between the yoke 27 and the anti-vibration film 29. In FIG. 1B, the convex portion 30 is provided at the center of the lower surface of the yoke. Is flat, and the center of the anti-sway film 29 is
It is shaped like a dish like a dish, and the yoke 27
Are joined together. In order to cause the vibrating portion to freely vibrate, the joint between the yoke 27 and the anti-vibration film 29 is limited to the central portion, and in other portions, there is a gap between the two as shown in FIG. 1 (B) and FIG. It is important that if there is no gap, or if the yoke 27 and the anti-vibration film 29 are joined on the entire surface, the vibrating portion is strongly restrained and does not vibrate freely.

As described above, in FIG. 1, the sounding body is provided with the connection terminal 35 partially embedded in the cover B (22), and the terminal 37 of the coil winding is soldered to the connection terminal 35. 38 is soldered. At the end of the connection terminal 35, a raised contact portion 36 is provided. Since the connection terminal 35 has a spring property, if the contact portion 36 is configured to elastically contact with a predetermined pattern of the mating circuit when the sounding body is incorporated into the mating device, the necessary electric connection can be made by itself. Obtainable.

Next, a method of manufacturing the above-described multifunctional sounding body will be described with reference to FIG. A plan view is shown on the right side, and an AA cross section of the plan view is shown on the left side. In the present invention, the second diaphragm 25 and the connection terminals 35 are manufactured by progressive press working using a strip 41 such as stainless steel. Pilot holes 42 for feeding and positioning are provided at equal intervals in the strip 41. The band 41 has a lead frame shape with a window 43, and a second diaphragm 25 having four arms and two connection terminals 35 are formed in the window 43. The portions 36 are subjected to drawing processing, and these are connected to a surrounding frame portion by a connecting portion 44 and held. These are formed by repeatedly processing at several stages of a progressive type.

The band 41 thus formed is then transferred to the cover B (22) molding step shown in FIG. 1 and passed through a plastic mold as the band, and is shown by a two-dot chain line in FIG. As described above, the cover B (22) is continuously formed with the second diaphragm 25 and the connection terminal 35 inserted. Then, the connection terminal 35 is subjected to necessary gold plating, washing, and the like, and the connecting portion 44 is cut along the contour of the cover B (22) with a press to remove the portion inside the window 43, thereby obtaining the cover B (2).
In 2), a component in which the second diaphragm 25 and two connection terminals 35 are inserted is obtained. Although the ends of the four arms are embedded in the cover B (22) in the second diaphragm 25 in FIG. 4, depending on the design, an annular portion may be provided on the outermost periphery of the second diaphragm 25 to provide
A second diaphragm having the outer end of the arm connected thereto is used. In the press working, the annular portion is connected to the band material 4 by the connecting portion 44.
It may be connected to 1. In such a second
The entire outermost annular portion of the diaphragm is inserted into the cover B (22).

On the other hand, other components shown in the embodiment of FIG. 1 are prepared separately from the above progressive press working. Then, the magnet 26 and the top plate 28 are bonded to the yoke 27, and the second plate 25 is integrated with the cover B (22) obtained by the progressive press working and the insert molding.
To weld. The cover A (21) with the anti-vibration film 29 adhered to the shoulder 32 is attached to the cover B (22) by covering the yoke 27, and the central portion of the anti-vibration film 29 is connected to the convex portion of the yoke 27. Adhere to 30. Also, the lower surface of the first diaphragm 25 to which the coil 24 is adhered is
Adhere to the shoulder 33 of (22). Then, the terminal 37 of the coil winding is soldered to the soldering portion 38 of the connection terminal 35 to complete the multifunctional sounding body of the present invention.

The gold plating on the contact portion 36 and the soldering portion 38 of the connection terminal 35 shown in FIG.
Although it can be performed after the progressive press processing of No. 5 and the insert molding of the cover B (22), it is convenient to perform the processing on the strip prior to these processings. That is, as shown in FIG. 5, the gold plating 45 is applied to the entire length of the band material 41 with the width on both sides. FIG. 4 also shows the area of the gold plating 45, which is the area where the connection terminal 35 is formed. If the band material is gold-plated in advance in this way, the connection terminal 35 is completed when the progressive press working and the insert molding are completed.
Both sides are gold plated to increase productivity.

The plating of a part of the width of the strip is performed by covering the unnecessary portion of the strip with a masking tape and winding the strip while passing it through a hot-dip plating tank. It can be 2 mm or less. There is also a method of partially plating without a mask using a jig, but in this case, the accuracy is reduced to 1 to 2 mm. In FIG. 4, the range of the gold plating 45 is a straight line on the lower side, and the upper side is the connection terminal 35 and the second terminal.
Although the wavy shape is used to sew between the arms of the diaphragm 25, the upper side may be straight for simplicity. In that case, a part of the arm of the second diaphragm 25 is also plated with gold. This is unnecessary, but does not hinder.

In the above embodiment, the sounding body is provided with the connection terminal 35 having a spring property, and the connection is made electrically by the elastic contact between the connection terminal 35 and the circuit pattern. May be specified to be soldered to the circuit pattern, and the connection terminal 35 may not be necessary. In such a case, the progressive press working may be configured so as not to form the connection terminals 35 in FIG. 4, but in a production form in which many with connection terminals and a small number without connection terminals are formed. , Connection terminal 35
In some cases, it may be more convenient to cut the connection terminal 35 along the contour of the cover B (22).

[0031]

As is apparent from the above description, according to the present invention, the vibrating portion of the multifunctional sounding body is supported by the second vibrating plate so as to be able to vibrate at a location almost at the same height as the coil, and Since the opposite surface is locked to the anti-vibration film to restrict lateral vibration, the tilt of the vibrating part is reliably prevented, and the parts may come into contact with each other to generate abnormal noise or disturbance. Disappears.
As a result, stable vibration can be obtained without using a double spring component.

Further, the multifunctional sounding body of the present invention is provided with a connection terminal having a spring property. When the connection terminal is brought into contact with a circuit pattern of a partner device when the device is incorporated into a device, the circuit pattern can be reduced. No soldering is required.

Further, in the method of manufacturing the multifunctional sounding body of the present invention, the cover is connected to the second diaphragm by continuously performing press working and insert molding of resin using a band material such as stainless steel. Parts with embedded terminals can be produced very efficiently, which can easily accommodate components without connection terminals. As described above, according to the present invention, a multifunctional sounding body having two functions, sounding and vibration, having a simple structure, high performance and high reliability is provided at low cost.

[Brief description of the drawings]

FIG. 1A is a top view and FIG. 1B is a cross-sectional view taken along the line BB of FIG. 1A in the embodiment of the multifunctional sounding body of the present invention.

FIG. 2 is a bottom view of the multifunctional sounding body of FIG. 1;

FIG. 3 is a cross-sectional view of another embodiment of the multifunctional sounding body of the present invention.

FIG. 4 is a view illustrating a method of manufacturing a multifunctional sounding body according to the present invention.

FIG. 5 is a perspective view of a band used for manufacturing the multifunctional sounding body of the present invention.

6A is a cross-sectional view of a conventional multifunctional sounding body, FIG.
(B) is a bottom view.

7A is a sectional view of another conventional multifunctional sounding body, FIG.
(B) is a bottom view.

FIG. 8 is a diagram showing an operation state of a conventional multifunctional sounding body.

[Explanation of symbols]

 1, 11 Cover 3, 13, 23 First diaphragm 4, 14, 24 Coil 5, 15, 25 Second diaphragm 6, 16, 26 Magnet 7, 17, 27 Yoke 8, 28 Top plate 18 Weight 19 Third Diaphragm 21 Cover A 22 Cover B 29 Anti-sway film 31 Flange 32, 33 Shoulder 34 Depression 35 Connection terminal 41 Band 44 Connecting part 45 Gold plating

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[Procedure amendment]

[Submission date] June 9, 1999 (1999.6.9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 6

[Correction method] Change

[Correction contents]

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Mutsumi Kuwahara 1-23-1, Kagurechi, Fujiyoshida City, Yamanashi Prefecture Inside Citizen Electronics Co., Ltd. (72) Inventor Akira Yoneyama 1-23-1, Kagurechi, Fujiyoshida City, Yamanashi Prefecture Citizen Electronics Co., Ltd. (72) Inventor Tetsuya Akasaki 1-23-1 Kagurechi, Fujiyoshida-shi, Yamanashi F-term (reference) 5C017 FF21

Claims (10)

[Claims] In a multifunctional sounding body in which a first diaphragm to which a coil is fixed and a second diaphragm to which a vibrating portion including a yoke and a magnet is fixed are accommodated in a cover, the second diaphragm is cross-sectionally formed. It is arranged at substantially the same height as the coil, and a flexible and breathable anti-vibration film is provided on the side opposite to the second diaphragm with the vibrating part interposed therebetween, and the outer periphery is fixed to the cover. A multifunctional sounding body characterized in that a part is fixed to the lateral shake prevention film. 2. The multifunctional sounding body according to claim 1, wherein a slight gap is provided between the anti-lateral shake film and the vibrating portion except for a fixed portion of each other. body. 3. The multifunctional sounding body according to claim 1, wherein the anti-vibration film is a mesh cloth or a porous film part. 4. The multifunctional sounding body according to claim 1, wherein the flange on the outer periphery of the yoke and the shoulder on the inner periphery of the cover are provided discontinuously to improve air permeability. Pronunciation body. 5. The multifunctional sounding body according to claim 1, wherein a connection terminal having a spring property is provided on the cover, and a terminal of the coil winding is soldered to the cover. . 6. The multi-function sounding body according to claim 1, wherein the first diaphragm is partially embedded in a cover. 7. The multifunctional sounding body according to claim 5, wherein a part of the connection terminal is embedded in a cover. 8. A method for manufacturing a multifunctional sounding body in which a first diaphragm to which a coil is fixed and a second diaphragm to which a vibrating portion including a yoke and a magnet is fixed are accommodated in a cover. The second diaphragm is formed in the window of the band by holding it at the connecting portion by progressive press working, and a part or the entire periphery of the second diaphragm is plastic-molded as it is inserted into the cover. A method of manufacturing a multifunctional sounding body, characterized in that a connecting part is cut by a press and a molded product is pulled out to produce a part in which the second diaphragm and the cover are integrated. 9. The method for manufacturing a multi-function sounding body according to claim 8, further comprising forming a connection terminal in the window of the band by holding the connection terminal at a connecting portion, and forming a part of the connection terminal on the second diaphragm. A method of manufacturing a multifunctional sounding body, wherein a part in which the second diaphragm and the connection terminal are integrated with the cover is manufactured by insert-molding the cover into the cover and dropping it from the band. 10. The method for manufacturing a multifunctional sounding body according to claim 9, wherein a gold-plated band is used in a region where connection terminals are formed over the entire length of the band. How to make the body.