JP2005184781A - Speaker device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speaker device in which a cushioning material can be surely mounted in a proper state at a gap with a position to mount the speaker device. <P>SOLUTION: A speaker device is mounted at a mounting position on a grill of a vehicle, for example, through a packing and a cushioning material. The speaker device includes a frame, an annular packing which is fixed on the frame, and a cushioning part which is mounted on the packing. The packing is formed by linking an inner peripheral wall and an outer peripheral wall through linking parts such as a plurality of ribs. On the other hand, the cushioning part is formed by deforming a rod-like cushioning member and mounting it on the packing. In such a case, both ends of the cushioning member are mounted on wide linking parts among the plurality of linking parts. Therefore, both the ends of the cushioning member are supported over an area wider than ordinary ribs on the wide linking parts and the end porions of the cushioning member can be prevented from falling into the space between the linking parts. Thus, the cushioning member can be rightly interposed at a gap with a mounting position at a vehicle side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a speaker device, and more particularly to a mounting method of a cushioning material when the speaker device is mounted at a mounting location.

  Generally, in a vehicle speaker device or the like, a grill frame or the like is provided at an attachment location on the vehicle side, and the frame of the speaker device is fixed to the grill frame (see, for example, Patent Document 1). In that case, a cushion material may be provided between a vehicle-side mounting location such as a grill frame and a frame of the speaker device.

  Such a cushioning material absorbs the vibration generated on the vehicle side and serves as a vibration absorbing material that prevents the vibration from being transmitted to the speaker device, or the sound emission side of the speaker device is sealed to deteriorate the sound quality. It has a role as a sealing material to prevent the above. Therefore, if the mounting state of the cushion material is partially inappropriate, the sealing effect at that portion cannot be obtained, and problems such as deterioration in sound quality may occur.

JP-A-9-99784

  Examples of problems to be solved by the present invention include the above. This invention makes it a subject to provide the speaker apparatus which can attach a shock absorbing material reliably in an appropriate state between the attachment locations of a speaker apparatus.

  The invention according to claim 1 is a speaker device, wherein a frame, an annular packing made of an insulator fixed on the outer periphery of the frame, and a deformable rod-like cushioning member are mounted on the mounting surface of the packing. And the packing has an inner peripheral wall, an outer peripheral wall, and a plurality of connecting portions that connect the inner peripheral wall and the outer peripheral wall, and the plurality of connecting portions are The packing includes a wide connecting portion having a larger width in the circumferential direction than the other connecting portions, and both ends of the bar-shaped cushioning member are mounted on the wide connecting portion.

  In a preferred embodiment of the present invention, the speaker device has a frame, an annular packing made of an insulator fixed on the outer periphery of the frame, and a deformable rod-shaped cushioning member mounted on the mounting surface of the packing. The packing includes an inner peripheral wall, an outer peripheral wall, and a plurality of connecting portions that connect the inner peripheral wall and the outer peripheral wall, and the plurality of connecting portions are The width of the packing in the circumferential direction includes a wide connecting portion that is larger than the other connecting portions, and both ends of the bar-shaped cushioning member are mounted on the wide connecting portion.

  Said speaker apparatus is attached to attachment locations, such as a grill of a vehicle, for example via a packing and a buffer member. The speaker device includes a frame, an annular packing fixed on the frame, and a buffer portion attached on the packing. The packing is formed by connecting the inner peripheral wall and the outer peripheral wall with connecting portions such as a plurality of ribs. On the other hand, the buffer portion is formed by deforming a rod-shaped buffer member and mounting it on the packing. Here, both ends of the rod-shaped buffer member are attached on a wide connecting portion among the plurality of connecting portions in a state where the buffer member is deformed into a picture ring shape or the like. Therefore, both ends of the buffer member are supported on an area wider than a normal rib on the wide connecting portion, and the end portion of the buffer member can be prevented from falling into the space between the connecting portions. Thereby, a buffer member can be correctly interposed between attachment locations, such as a vehicle.

  In one aspect of the speaker device, the wide connecting portion has a width at a connection portion between the inner peripheral wall and the outer peripheral wall larger than a width at a substantially center between the inner peripheral wall and the outer peripheral wall. Moreover, in another one aspect | mode, the said wide connection part has the expansion support part projected over the space between the said inner peripheral wall and the said outer peripheral wall in the connection part with the said inner peripheral wall and the said outer peripheral wall. Thereby, the corner | angular part of the edge part of a buffer member is prevented more reliably that it falls in the space between connection parts.

  In a preferred example, the plurality of connecting portions extend in the radial direction of the packing and connect the inner peripheral wall and the outer peripheral wall. Moreover, the both end surfaces of the said rod-shaped buffer member are mutually contacting on the said wide connection part. Thereby, there is no gap in the buffer member, and the sealing effect by the buffer member is ensured.

  In a preferred example, the packing is made of a resin material, and the inner peripheral wall, the outer peripheral wall, and the plurality of connecting portions are integrally formed of the resin material. Thereby, a some connection part can be formed easily.

  In the other one aspect | mode of said speaker apparatus, the said packing has a convex part in the said outer peripheral wall. In a preferred example, the convex portion is provided on the outer peripheral wall at the position of the wide coupling portion. Further, in another preferred example, the convex portion is provided on the outer peripheral wall at the position of the wide connecting portion and at other positions, and the convex portion provided at the position of the wide connecting portion and the other The shape is different from the convex portion provided at the position. Thereby, the convex part provided in the position of the wide connection part functions as a mark when the worker who creates the speaker device searches for the wide connection part.

  In still another preferred example, the frame has an upright wall standing outside an outer peripheral wall of the packing, and the convex portion is in contact with an inner wall surface of the upright wall. As a result, the convex portion is sandwiched between the standing wall of the frame and the outer peripheral wall of the packing to fix the packing in the frame, thereby preventing the packing from rattling.

  In still another preferred example, the bottom surface of the convex portion is flush with the bottom surface of the packing. Thereby, the convex bottom surface also functions as an adhesive surface for the frame, like the bottom surface of the packing. Therefore, the adhesion area increases by the amount corresponding to the convex portion, and the adhesion strength of the packing to the frame can be improved.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[Configuration of speaker device]
1 and 2 schematically show a schematic configuration of a speaker device 100 according to an embodiment of the present invention. In addition, the speaker apparatus 100 of a present Example can be used suitably as a vehicle-mounted speaker. FIG. 1A shows a plan view of the speaker device 100. FIG.1 (b) has shown sectional drawing along the cutting line AA 'of the speaker apparatus 1 in Fig.1 (a). FIG. 2A shows a rear view of the speaker device 100. FIG. 2B shows a side view of the speaker device 100 in FIG. Hereinafter, the configuration and the like of the speaker device 100 according to the present embodiment will be described with reference to FIGS.

  As shown in FIG. 1B, the speaker device 100 mainly includes a frame 8, a diaphragm 1, a damper 2, a voice coil bobbin 3 and a voice coil 4, a pot type yoke 5, a magnet 6 and A magnetic circuit system 11 having a plate 7 and other various members are provided. The speaker device 100 is a speaker device of a type generally called double voice or dual voice, and can emit sound with a high volume output.

  First, each component of the vibration system 10 will be described.

  The diaphragm 1 is a so-called cone-shaped diaphragm, and is bonded to and joined to a separate edge portion 1a or integrally formed with the edge portion 1a. Various materials such as paper, polymer, and metal can be applied to the diaphragm 1 according to various applications. The outer peripheral edge portion of the diaphragm 1, that is, the lower end portion of the edge portion 1 a is fixed to the upper surface of the outer peripheral edge portion of the frame 8. Since various components of the speaker device 100 are fixed to the frame 8 and also serve to support the speaker device 100, it is preferable to use a strong metal material. On the other hand, the inner peripheral edge of the diaphragm 1 is fixed in the vicinity of the upper end of the outer peripheral wall of the voice coil bobbin 3.

  The damper 2 is made of, for example, a cloth material in which a plurality of corrugations are formed. In the speaker device 100 of this example, a plurality of dampers 2 are provided. As a result, the voice coil bobbin 3 having a large driving force can be movably supported. The inner peripheral edge of each damper 2 is fixed to the outer peripheral wall of the voice coil bobbin 3. On the other hand, the outer peripheral edge of each damper 2 is fixed to the inner surface of the frame 8.

  The voice coil bobbin 3 has an opening on the lower surface and has a substantially cylindrical shape. A voice coil 4 is wound around the outer wall of the lower end portion of the voice coil bobbin 3. The outer peripheral wall of the lower end portion of the voice coil bobbin 3 is opposed to the inner peripheral wall of the pot type yoke 5 having an opening on the upper surface with a certain distance. On the other hand, the inner peripheral wall of the voice coil bobbin 3 is opposed to the outer peripheral wall of the annular plate 7 and the outer peripheral wall of the annular magnet 6 having a size slightly smaller than the annular plate 7 with a certain distance therebetween. . As a result, a gap (magnetic gap 20) is formed between the outer peripheral wall of the plate 7 and the inner peripheral wall of the pot type yoke 5.

  The voice coil 4 is composed of two independent voice coils 4a and 4b (see FIG. 3). Two sets of electrical signals for one channel are input to the two voice coils from the amplifier side. For example, when the speaker device 100 is used for the L channel, the same L channel audio signal is input to the two voice coils 4a and 4b, respectively. The voice coil 4 has two sets of plus / minus lead terminals, and each lead terminal is electrically connected to the two sets of tinsel wires 9 at predetermined positions of the diaphragm 1. The positive lead terminal is an input terminal for an L channel signal, and the negative lead terminal is an input terminal for a ground (GND) signal.

  Next, each component of the magnetic circuit system 11 will be described.

  The magnetic circuit system 11 is configured as an internal magnet type magnetic circuit system. This magnetic circuit includes an annular magnet 6, an annular plate 7 disposed so as to overlap the upper portion of the magnet 6, and a pot type yoke 5 that accommodates them. In the magnetic circuit system 11, the magnet 6 and the plate 7 constitute a magnetic circuit, and the magnetic flux of the magnet 6 is concentrated in the magnetic gap 20 formed between the outer peripheral surface of the plate 7 and the inner peripheral surface of the pot type yoke 5. ing.

  Next, various components will be described.

  Various components include members such as a dust cap 12, a packing 13, a buffer member 14, and a wire harness 15.

  The dust cap 12 has a dome shape. The outer peripheral edge of the dust cap 12 is fixed in the vicinity of the inner peripheral edge of the diaphragm 1. For this reason, the dust-proof cap 12 functions to prevent foreign matters such as dust from entering the magnetic circuit system 11 and the like.

  The packing 13 has a ring shape and is an insulating member. As a material of the packing 13, for example, a material such as a resin is suitable. The lower surface of the packing 13 is fixed to the upper surface of the outer peripheral edge of the frame 8. The frame 8 has a standing wall 8a on the outer peripheral edge (see FIG. 1B), and the packing 13 is attached to the inside of the standing wall 8a.

  The shock-absorbing member 14 has a function as a shock-absorbing material when the speaker device 100 is attached to a predetermined position of the vehicle, and also functions to prevent external vibration from being transmitted to the main body of the speaker device 100. It is a member. For this reason, as a material of the buffer member 14, for example, a member such as a sponge having cushioning properties is suitable. Further, the buffer member 14 has a rod shape, and an adhesive is applied to one side or a double-sided tape is attached. The buffer member 14 is attached to the upper surface of the packing 13 via its adhesive or double-sided tape in a state of being deformed in an annular shape.

  The wire harness 15 is a four-wire wiring, and outputs an electrical signal for one channel output from the amplifier to the voice coil 4 via each tinsel wire 9. One end of the wire harness 15 is connected to the connection terminal 16 by the solder 17, and the other end of the wire harness 15 is connected to the connector terminal 18. Thereby, the wire harness 15, the tinsel wire 9, and the voice coil 4 are electrically connected.

  Next, a method for supplying an electric signal to the speaker device 100 will be briefly described with reference to FIG. The electric signal is supplied to the speaker device 100 through the acoustic source 30, the amplifier 31, the amplifier 32, and the like. The sound source 30 corresponds to a CD (Compact Disc) player, an MD (Mini Disc) player, or the like. The acoustic source 30 outputs audio signals for one channel of the L channel (or R channel) to the amplifiers 31 and 32, respectively (signal S1). For example, when the speaker device 100 is used for the L channel, the amplifier 31 and the amplifier 32 amplify the output L channel audio signal with a predetermined amplification factor, and pass through each of the tinsel wires 9 and the like. , Output to each of the voice coils 4a and 4b. For this reason, the speaker device 100 can emit a high-volume output.

  In the speaker device 100 described above, when an electric signal is input from the amplifier side to the wire harness 15, the electric signal is transmitted to the voice coil 4 via the connection terminal 16, the tinsel wire 9, and the lead terminal of the voice coil 4. Supplied. As a result, a driving force is generated in the voice coil 4 in the magnetic gap 20, and the diaphragm 1 is vibrated in the axial direction of the speaker device 100. Thus, the speaker device 100 generates sound in the direction of the arrow 50 shown in FIGS. 1 (b) and 2 (b).

[Mounting structure of cushioning member]
Next, the attachment structure of the buffer member 14 to the packing 13 will be described. FIG. 4A shows the planar shape of the packing 13. As shown in FIG. 1B, a buffer member 14 is attached above the packing 13, but for convenience of explanation, the buffer member 14 is not shown in FIG. 4A. 4B is a cross-sectional view taken along a cutting line XX ′ in FIG. 4A, and FIG. 4C is a cross-sectional view taken along a cutting line YY ′ in FIG. FIG.

  As shown in the figure, the packing 13 is an annular member made of a resin material or the like, and an inner peripheral wall 13e and an outer peripheral wall 13d are connected by an annular bottom portion 13f. That is, the lower bottom surface of the packing 13 is covered with a ring-shaped bottom portion 13f. 4A and 4B, a plurality of ribs 13a and 13b extending in the radial direction of the packing 13 are provided between the outer peripheral wall 13d and the inner peripheral wall 13e. Yes. 4B, the ribs 13a and 13b extend from the upper end surface to the lower end surface of the packing 13, and connect the outer peripheral wall 13d and the inner peripheral wall 13e over the entire thickness of the packing 13. As shown in FIG. The ribs 13 a and 13 b are provided at a predetermined interval in the circumferential direction of the packing 13.

  As well shown in FIG. 4C, a space 13c is formed between the adjacent ribs 13a and 13b. The reason why the outer peripheral wall 13d and the inner peripheral wall 13e are connected by the plurality of ribs 13a and 13b in this way is to reduce the weight of the packing 13 and to escape from meat during meat molding (meat stealing). The packing 13 is made of an insulating material such as a resin material, and is manufactured by integrally molding an outer peripheral wall 13d, an inner peripheral wall 13e, a bottom portion 13f, and a plurality of ribs 13a and 13b.

  Of the plurality of ribs 13a and 13b, the rib 13a shown in the broken line region D in FIG. 4A has a larger width in the circumferential direction of the packing than the other plurality of ribs 13b. That is, as shown in FIG. 4A, the rib 13a as the wide connecting portion has a width L1 larger than the width L2 with respect to the width L2 of the rib 13b. This is to stably support the joints (joints) at both ends of the rod-shaped buffer member 14 as will be described later.

  Next, the buffer member 14 will be described. FIG. 5A is a perspective view showing a shape before the buffer member 14 is attached, and FIG. 5B is a plan view schematically showing how the buffer member 14 is deformed for attachment to the upper surface of the packing 13. is there.

  As shown in FIG. 5A, the buffer member 14 is a deformable rod-like member having flexibility, such as sponge or rubber. As shown in FIG. 5B, when attaching the buffer member 14 to the upper surface of the packing 13, first, both ends 14a and 14b of the buffer member 14 are bent in the directions of the arrows in the figure, and both end surfaces 14c and 14d are formed. Are deformed into a substantially ring shape so as to be close to each other. Then, as shown in FIG. 4B, the buffer member 14 deformed into a ring shape is attached to the upper surface of the packing 13. At this time, the buffer member 14 deformed in a ring shape is attached to the upper surface of the packing 13 so that both end surfaces 14c and 14d of the buffer member 14 are positioned on the rib 13a functioning as the wide connecting portion. Specifically, as shown in FIG. 6, the buffer member 14 is affixed to the packing 13 so that the end faces 14 c and 14 d of the buffer member 14 indicated by the broken line abut on the wide rib 13 a of the packing 13.

  The buffer member 14 can be attached by, for example, attaching a double-sided tape or the like to the bonding surface of the buffer member 14 with the packing. Alternatively, the buffer member 14 may be bonded by applying an adhesive or the like to the bonding surface of the buffer member 14 or the upper end surface of the packing 13.

  As described above, the joint portions of the both end faces 14c and 14d of the buffer member 14 are arranged on the rib 13a which is the wide connecting portion, because the end portion 14a or 14b of the buffer member 14 is mainly between the ribs 13a and 13b. This is to prevent falling into the space 13c. Since the buffer member 14 is continuous except at the joint portion of the end portions 14a and 14b, it is unlikely that the buffer member 14 partially falls into the space 13c between the ribs 13b. On the other hand, unless the end surfaces 14c and 14 are bonded to form a complete ring shape, the end portions 14a and 14b (particularly the corner portions) of the end portions 14a and 14b fall into the space 14c. The positions of the end faces 14c and 14d are likely to be displaced in the radial direction of the packing 13. Therefore, the buffer member 14 is affixed on the packing 13 so that the joint between the both end portions 14a and 14b of the buffer member 14 is located on the rib 13a that is the wide connecting portion. In other words, the joint of the end portions 14a and 14b of the buffer member 14 is reliably supported by the rib 13a which is a wide connecting portion.

  By doing so, when the speaker device 100 is attached to an attachment location such as a grille on the vehicle side, for example, the end portion 14a or 14b of the buffer member 14 falls into the space 13c between the ribs, or the respective positions are shifted. As a result, a defective portion in which the buffer member 14 is stuck can be formed, and problems such as a deterioration in sound quality due to a decrease in the sealing effect can be prevented. Further, since the joint of the end portions 14a and 14b of the buffer member 14 is disposed on the wide rib 13a, the work of attaching the buffer member to the packing 13 is facilitated, and the workability is improved.

  In the above example, one rod-like buffer member 14 is deformed into a ring shape and is attached to the packing 13. However, a plurality of rod-like buffer members 14 may form a ring shape. Good. For example, a semicircular arc may be formed by each of the two bar-shaped buffer members, and the ring-shaped buffer members may be formed by connecting them at two locations. In that case, the ribs 14 a as the wide connecting portions may be provided at two corresponding locations on the packing 13. That is, when a plurality of rod-shaped buffer members are used, at least the number of wide ribs 13 a corresponding to the number of joints may be provided at the corresponding position of the packing 13. In addition, you may form the wide rib 13a periodically also in the location which does not correspond to the joint of a rod-shaped buffer member. This is because the bonding area between the mounting surface of the buffer member 14 and the upper end surface of the packing 13 is increased in the wide rib portion 13a, so that the buffer member can be fixed more reliably.

  Next, another example of the shape of the rib 13a will be described. FIG. 7 shows another example of the rib 13a. In the example of FIG. 7, the area of the wide rib 13a is enlarged in the vicinity of the inner peripheral wall 13e and the outer peripheral wall 13d of the packing 13 to form an enlarged support portion 40 (shown by a broken line). In this example, the enlarged support portion 40 has an arcuate cross-sectional shape (that is, has a round (R)). The enlarged support portion 40 enlarges the area of the rib 13a at a position corresponding to the corner of the inner peripheral wall 13e and the outer peripheral wall 13d, particularly the space 13c, and supports the end portions 14a and 14b of the buffer member 14 with a wider area. Specifically, as shown in FIG. 7, the rib 13a has a width d2 in the vicinity of the inner peripheral wall 13e and the outer peripheral wall 13d rather than a width d1 in the vicinity of the approximate center between the inner peripheral wall 13e and the outer peripheral wall 13d of the packing 13. Is getting bigger. In other words, the end portions 14a and 14b of the buffer member 14, particularly corner portions, are supported in a wider area. Thereby, the fall and position shift in the joint part of the edge parts 14a and 14b of the buffer member 14 can be prevented more reliably.

  FIG. 8 shows still another example of the rib 13a. In the example of FIG. 8, a rectangular enlarged support portion 42 is formed in the vicinity of the inner peripheral wall 13e and the outer peripheral wall 13d. This also more reliably prevents the end portions 14a and 14b of the buffer member 14 from falling into the space 13c.

[Modification of packing]
Next, a modified example of the packing will be described.

(First modification)
FIG. 9 is a plan view of a first modification of the packing, and FIG. 10A is a cross-sectional view taken along the line XX ′ of FIG. FIG. 11A is a perspective view of a portion indicated by a broken line D in FIG. As shown in the figure, the first modification of the packing 13 is provided with a convex portion (convex rib) 13x outside the outer peripheral wall 13d at the position of the rib 13a as the wide connecting portion. As shown in FIGS. 10A and 11A, the convex portion 13 x is partially formed on the upper side of the outer peripheral wall 13 d of the packing 13, that is, on the side where the buffer member 14 is disposed.

  The convex portion 13x has a function as a mark indicating the position of the rib 13a as the wide connecting portion. As described above, the buffer member 14 is affixed to the upper surface of the packing 13 such that the joint between the end faces 14c and 14d is disposed on the rib 13b that is the wide connecting portion. Therefore, an operator who manufactures the speaker device needs to find the position of the rib 13 b of the packing 13 when the buffer member 14 is attached to the packing 13. However, if there is no mark on the packing 13, the operator needs to find out the rib 13 a as the wide connecting portion from the ribs 13 a and 13 b formed on the packing 13, and the cushioning member 14 is attached to the packing 13. Time is required for the process of attaching to the substrate. Therefore, in the first modification, the convex portion 13x is provided on the outer peripheral wall 14d of the packing 13 at a position corresponding to the rib 13a as the wide connecting portion. Thereby, the operator can easily find the rib 13a which is the wide connecting portion visually or by touching the outer peripheral wall 14d of the packing 13 with a finger, and the work of attaching the buffer member 14 to the packing 13 Can be performed quickly.

(Second modification)
The planar shape of the second modification of the packing is the same as the planar shape of the first modification shown in FIG. FIG. 10B is a sectional view of a second modification of the packing according to the section XX ′ in FIG. FIG. 11B is a perspective view of a portion indicated by a broken line D in FIG. As shown in the drawing, in the second modification, a convex portion (convex rib) 13y is provided at the position of the rib 13a which is a wide connecting portion. As shown in FIG. 11B, the convex portion 13y is partially formed on the lower side of the outer peripheral wall 13d of the packing 13, that is, on the frame 8 side.

  The convex portion 13y according to the second modification has three functions. The first function is a function as a mark of the rib 13a that is the wide connecting portion, as in the first modification. That is, the operator can find the rib 13a easily and quickly by finding the convex portion 13y.

  The second function is a function that prevents rattling between the packing 13 and the frame 8. When the packing 13 is affixed on the frame 8, the upright wall 8 a on the outer peripheral edge of the frame 8 is positioned outside the packing 13. Here, the convex portion 13 y abuts against the inner wall surface of the standing wall 8 a of the frame 8 and has a function of fixing the packing 13 in the frame 8. As shown in the lowermost convex portion 13 y of FIG. 9, the upright wall 8 a of the frame 8 is positioned outside the packing 13 in a state of being stuck on the frame 8. Therefore, the convex portion 13 y is sandwiched between the outer peripheral wall 13 d of the packing 13 and the upright wall 8 a of the frame 8 to prevent the packing 13 from rattling.

  The third function is a function for increasing the bonding area between the packing 13 and the frame 8. As can be seen from FIG. 10B, the bottom surface of the convex portion 13y and the bottom surface of the packing 13 are flush with each other (same plane). That is, since the bonding area between the packing 13 and the frame 8 is increased by the amount corresponding to the bottom surface of the convex portion 13y, the bonding strength between the two can be increased accordingly. In particular, when the frame 8 is made of iron or aluminum, the heat shrinkage and expansion of the resin is larger than that of the metal, and the packing may be peeled off from the frame due to secular change. In this respect, since the bonding area is increased by the convex portion 13y, the bonding strength can be improved.

(Third Modification)
The planar shape of the third modification of the packing is the same as the planar shape of the first modification shown in FIG. FIG. 10C is a cross-sectional view of a third modification of the packing according to the XX ′ cross section of FIG. FIG. 11C is a perspective view of a portion indicated by a broken line D in FIG. As shown in the drawing, in the third modification, a convex portion (convex rib) 13z is provided at the position of the rib 13a which is a wide connecting portion. As shown in FIG. 11 (c), the convex portion 13 z is continuously formed from the upper end to the lower end of the outer peripheral wall 13 d of the packing 13.

  The convex portion 13z according to the third modified example has the same three functions as the second modified example. That is, a function as a mark of the wide connecting portion 13a, a function of preventing rattling between the packing 13 and the frame 8, and a function of increasing the bonding area between the packing 13 and the frame 8.

(Fourth modification)
FIG. 12 shows a planar shape of the fourth modification of the packing. As in the third modification example, the fourth modification example first has a convex portion 13z formed continuously from the upper end to the lower end of the packing 13 at the position of the rib 13a which is a wide connecting portion. In addition to this, at the positions of the other ribs 13b of the packing 13, a convex portion 13y similar to the second modification is provided.

  Therefore, the fourth modified example also has the same three functions as the second and third modified examples. First, the convex part 13z provided in the position of the rib 13a performs a 1st function as a mark of the rib 13a which is a wide connection part. In the fourth modified example, the convex portion 13y is provided not only at the rib 13a which is the wide connecting portion but also at the position of the rib 13b. However, the convex portion 13z provided at the position of the rib 13a is formed of the packing. It is formed continuously from the upper end surface to the lower end surface, and is different in shape from the convex portion 13y provided at the position of the rib 13b. Specifically, the convex portion 13 z is longer than the convex portion 13. Therefore, the operator can find the rib 13a which is a wide connection part easily and quickly by finding the convex part 13z.

  Further, the plurality of convex portions 13z and the convex portions 13y have a second function for preventing rattling between the packing 13 and the frame 8, and a third function for increasing the adhesion area between the packing 13 and the frame 8. Have In particular, in the fourth modified example, since a large number of convex portions 13y are provided in the packing 13, the second and third functions are more effectively exhibited.

It is a figure which shows the structure of the speaker apparatus based on the Example of this invention, Fig.1 (a) is a top view seen from right above, FIG.1 (b) is the cutting line A- of the speaker apparatus in Fig.1 (a). A cross-sectional view along A ′ is shown. It is a figure which shows the structure of the speaker apparatus based on the Example of this invention, Fig.2 (a) is a rear view, FIG.2 (b) is a side view from the arrow B direction of the speaker apparatus in Fig.1 (a). Indicates. It is a figure which shows the supply method of the electrical signal to a speaker apparatus. It is the top view and sectional drawing which show the shape of packing. The perspective view which shows the shape of a buffer member, and the deformation | transformation method at the time of attachment are shown. It is a figure which shows the positional relationship of the joint of a wide rib and a buffer member. It is a figure which shows the other example of a wide rib. It is a figure which shows the further another example of a wide rib. It is a top view which shows the shape of the packing which concerns on the 1st thru | or 3rd modification. It is sectional drawing of the packing which concerns on the 1st thru | or 3rd modification. It is a perspective view of the convex part provided in the packing based on the 1st thru | or 3rd modification. It is a top view of packing concerning the 4th modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Diaphragm 4 Voice coil 5 Yoke 8 Frame 13 Packing 14 Buffer member 15 Wire harness 100 Speaker apparatus

Claims (11)

Frame,
An annular packing made of an insulator fixed on the outer periphery of the frame;
A buffer part formed by attaching a deformable rod-like buffer member on the mounting surface of the packing, and
The packing includes an inner peripheral wall, an outer peripheral wall, and a plurality of connecting portions that connect the inner peripheral wall and the outer peripheral wall;
The plurality of connecting portions include a wide connecting portion whose width in the circumferential direction of the packing is larger than the other connecting portions, and both ends of the bar-shaped cushioning member are mounted on the wide connecting portion. apparatus. 2. The width of the wide connecting portion is greater than a width at a substantially center between the inner peripheral wall and the outer peripheral wall at a connecting portion between the inner peripheral wall and the outer peripheral wall. Speaker device. The said wide connection part has an expansion support part projected in the space between the said inner peripheral wall and the said outer peripheral wall in the connection part with the said inner peripheral wall and the said outer peripheral wall. Speaker device. The speaker device according to any one of claims 1 to 3, wherein the plurality of connecting portions extend in a radial direction of the packing and connect the inner peripheral wall and the outer peripheral wall. 5. The speaker device according to claim 1, wherein both end surfaces of the bar-shaped buffer member are in contact with each other on the wide connecting portion. 6. 6. The speaker according to claim 1, wherein the packing is made of a resin material, and the inner peripheral wall, the outer peripheral wall, and the plurality of connecting portions are integrally formed of the resin material. apparatus. The speaker device according to claim 1, wherein the packing has a convex portion on the outer peripheral wall. The speaker device according to claim 7, wherein the convex portion is provided on the outer peripheral wall at the position of the wide coupling portion. The convex portion is provided on the outer peripheral wall at the position of the wide connecting portion and at other positions, and the convex portion provided at the position of the wide connecting portion, and the convex portion provided at the other position, The speaker device according to claim 7, wherein the shapes are different. 10. The speaker device according to claim 8, wherein the frame has a standing wall that stands up outside an outer peripheral wall of the packing, and the convex portion is in contact with an inner wall surface of the standing wall. The speaker device according to claim 7, wherein a bottom surface of the convex portion is flush with a bottom surface of the packing.

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