Speaker device and method for manufacturing a speaker device

Abstract

We aim to reduce the cost of speaker equipment. [Solution] The speaker device comprises a speaker unit having a diaphragm, a frame, and a fixing part; a mounting member that is attached to an object to be mounted on; and a plurality of strip-shaped or linear support members that support the speaker unit by connecting the fixing part and the mounting member, wherein the plurality of support members are integrally formed with one or both of the fixing part and the mounting member.

Description

Technical Field

[0001] The present disclosure relates to a speaker device and a method for manufacturing the speaker device.

Background Art

[0002] In a speaker device having a speaker unit, a configuration may be adopted to suppress the transmission of vibration from the speaker unit to the outside. For example, Patent Document 1 discloses a device in which a speaker unit is connected to an attachment member via a spring member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the device described in Patent Document 1, there is room for improvement from the viewpoint of cost reduction.

[0005] In consideration of the above circumstances, one aspect of the present disclosure aims to suppress the transmission of vibration from the speaker unit to the outside while reducing costs.

Means for Solving the Problems

[0006] In order to solve the above problems, a speaker device according to a preferred aspect of the present disclosure includes a speaker unit having a diaphragm, a frame, and a fixing portion, an attachment member attached to an attachment object, and a plurality of belt-like or linear support members that support the speaker unit by connecting the fixing portion and the attachment member, and the plurality of support members are integrally formed with one or both of the fixing portion and the attachment member.

[0007] A preferred embodiment of the present disclosure is a method for manufacturing a speaker device comprising a speaker unit having a diaphragm, a frame, and a fixing portion, and a mounting member to be attached to an object, the method for manufacturing a speaker device comprising a connection step of connecting a plurality of strip-shaped or linear support members to the fixing portion and the mounting member, the connection step of forming one or both of the fixing portion and the mounting member by insert molding in which the plurality of support members are insert products. [Brief explanation of the drawing]

[0008] [Figure 1] This is a cross-sectional view of the speaker device according to the first embodiment. [Figure 2] Figure 1 is a rear view of the speaker device shown. [Figure 3] This is an explanatory diagram of the function of a strip-shaped or linear support member. [Figure 4] This is an explanatory diagram of the support member in the first embodiment. [Figure 5] This is an explanatory diagram of the fixing part and mounting member in the first embodiment. [Figure 6] This is an explanatory diagram of a mold used in the connection step of the manufacturing method of a speaker device according to the first embodiment. [Figure 7] This is a plan view of the lower mold in the first embodiment. [Figure 8] This is an explanatory diagram of the insert process in the first embodiment. [Figure 9] This is an explanatory diagram of the mold clamping process in the first embodiment. [Figure 10] This is an explanatory diagram of the injection process in the first embodiment. [Figure 11] This is an explanatory diagram of the support member in the second embodiment. [Figure 12] This is an explanatory diagram of the fixing part and mounting member in the second embodiment. [Figure 13] This is an explanatory diagram of a mold used in the manufacturing method of a speaker device according to the second embodiment. [Figure 14] This is a plan view of the lower mold in the second embodiment. [Figure 15] It is an explanatory diagram of the insert process in the second embodiment. [Figure 16] It is an explanatory diagram of the mold clamping process in the second embodiment. [Figure 17] It is an explanatory diagram of the speaker device according to Modification 1. [Figure 18] It is an explanatory diagram of the speaker device according to Modification 2. [Figure 19] It is an explanatory diagram of the speaker device according to Modification 3.

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the drawings, the dimensions and scales of each part are appropriately different from the actual ones. Further, the embodiments described below are preferred specific examples of the present disclosure. For this reason, various technically preferable limitations are imposed on this embodiment. However, the scope of the present disclosure is not limited to these forms unless there is a description to specifically limit the present disclosure in the following description.

[0010] 1. First Embodiment 1-1. Outline of Speaker Device FIG. 1 is a cross-sectional view of a speaker device 1 according to the first embodiment. The speaker device 1 is attached to an attachment object 200 and is a device that emits sound based on an audio signal input from an external device such as an amplifier (not shown).

[0011] The attachment object 200 is, for example, an inner panel of a vehicle door. In the example shown in FIG. 1, the attachment object 200 has an opening 210, and the speaker device 1 is arranged so as to close the opening 210. The speaker device 1 is fixed to the attachment object 200 by screwing or the like. Note that the attachment object 200 is not limited to the inner panel of a vehicle door, and may be, for example, a panel other than the inner panel of a vehicle door, or a panel used other than a vehicle door.

[0012] As shown in Fig. 1, the speaker device 1 includes a speaker unit 10, a mounting member 20, a plurality of support members 30, and a sealing member 40.

[0013] Hereinafter, each part of the speaker device 1 will be described in order. In the following, the central axis of the speaker unit 10 is the axis AX. The axis AX is typically an axis along the horizontal direction. In the following, the direction from the back surface to the front surface of the speaker unit 10 along the axis AX is referred to as the X1 direction, and the direction from the front surface to the back surface of the speaker unit 10 opposite to the X1 direction is referred to as the X2 direction. Also, in the following, the X1 direction and the X2 direction may be collectively referred to as the axial direction without distinction. Further, a direction along a virtual circle centered on the axis AX or the opposite direction may be referred to as the circumferential direction. Furthermore, a direction perpendicular to the axis AX and away from the axis AX or the opposite direction may be referred to as the radial direction.

[0014] The speaker unit 10 is a dynamic type driver that converts an electrical audio signal from an external device such as an amplifier (not shown) into sound. The speaker unit 10 has a diaphragm 11, a voice coil 12, a magnetic circuit 13, a frame 14, a damper 15, an edge 16, and a fixing portion 17.

[0015] The diaphragm 11 is a vibrating body composed of a sheet material, and emits sound through vibration. The sheet material constituting the diaphragm 11 is obtained, for example, by impregnating a fibrous substrate with a resin material and then curing or solidifying it. Examples of the resin material include polyester resin, acrylic resin, polyurethane, melamine resin, modified rubber resin, and phenolic resin. Examples of the fibrous substrate include carbon fiber, aramid fiber, glass fiber, ceramic fiber, silica fiber, metal fiber, potassium titanate fiber, zirconia fiber, polyacrylate fiber, polyphenylene sulfide fiber, vinylon fiber, rayon fiber, nylon fiber, polyester fiber, acrylic fiber, polypropylene fiber, polyethylene fiber, cotton fiber, hemp fiber, and cellulose fiber. The surface of the sheet material may be provided with a coating film composed of, for example, a metal such as aluminum or an inorganic material such as DLC (Diamond-like Carbon).

[0016] The diaphragm 11 has a surface facing the X1 direction and a surface facing the X2 direction, and emits sound by vibrating in a direction along the axis AX. The surface of the diaphragm 11 facing the X1 direction is the sound-emitting surface. In the example shown in Figure 1, the diaphragm 11 is cone-shaped. However, the shape of the diaphragm 11 is not limited to the example shown in Figure 1, and may be dome-shaped, for example.

[0017] The voice coil 12 is fixed to the surface of the diaphragm 11 facing the X2 direction and generates a magnetic field in response to the input of an electrical audio signal. The voice coil 12 has a bobbin 12a and a coil 12b. The bobbin 12a is cylindrical with axis AX as its central axis. One end of the bobbin 12a in the X1 direction is joined to the surface of the diaphragm 11 facing the X2 direction by adhesive or the like. The coil 12b is made up of a wire wound circumferentially along the outer circumference of the bobbin 12a. The audio signal is input to the coil 12b. As a result, a magnetic field corresponding to the audio signal is generated from the voice coil 12.

[0018] The magnetic circuit 13 is a structure that generates a magnetic field that acts on the magnetic field from the voice coil 12. The magnetic circuit 13 has a permanent magnet 13a and a yoke 13b. The permanent magnet 13a is a ferrite magnet or neodymium magnet, etc., with axis AX as its central axis. The yoke 13b is made of a soft magnetic material and guides the magnetic flux from the permanent magnet 13a to the voice coil 12. As a result, the magnetic field from the voice coil 12 due to the audio signal acts on the magnetic field from the magnetic circuit 13, causing the diaphragm 11 to vibrate in response to the audio signal.

[0019] The frame 14 is a structure for supporting the diaphragm 11 and the magnetic circuit 13. The frame 14 is made of, for example, a resin composition. The magnetic circuit 13 is fixed to the frame 14. The voice coil 12 is connected to the frame 14 via a damper 15, and the diaphragm 11 is connected via an edge 16. If the frame 14 is separate from the fixing part 17, it may be made of metal.

[0020] In the example shown in Figure 1, the frame 14 generally has a shape that follows the side surface of a frustum of a cone that expands in the X1 direction with the axis AX as the center. A flange 14a is provided at the end of the frame 14 in the X1 direction, projecting radially outward. An edge 16 is joined to the X1-facing surface of the flange 14a with adhesive or the like. A back plate 14b is provided at the end of the frame 14 in the X2 direction, with the axis AX oriented in the thickness direction. A magnetic circuit 13 is joined to the X2-facing surface of the back plate 14b with adhesive or the like. Furthermore, a fixing part 17 is provided on the X2-facing surface of the frame 14.

[0021] Although not shown in the diagram, the frame 14 has multiple holes that penetrate axially and are spaced apart in the circumferential direction. Through these multiple holes, the space S1 between the diaphragm 11 and the frame 14 communicates with the space S2 in the X2 direction relative to the frame 14. This reduces the influence of the air spring in space S1 on the diaphragm 11.

[0022] The shape of the frame 14 is not limited to the example shown in Figure 1, but is arbitrary. Also, although the frame 14 is composed of a single component in the example shown in Figure 1, it is not limited to this, and the frame 14 may be composed of multiple components joined together by adhesive or other means.

[0023] The damper 15 is a flexible sheet material that supports the voice coil 12 relative to the frame 14 while allowing vibration of the diaphragm 11. This sheet material is, for example, shaped into a concentric wave and is made of the same material as the diaphragm 11. The damper 15 is annular when viewed in the direction along the axis AX. The inner edge of the damper 15 is joined to the voice coil 12 with an adhesive or the like. The outer edge of the damper 15 is joined to the frame 14 with an adhesive or the like. The damper 15 may be provided as needed or omitted.

[0024] The edge 16 is a flexible, membrane-like or sheet-like member that connects the outer edge of the diaphragm 11 to the frame 14, and is also called a surround. Here, the edge 16 seals the gap between the diaphragm 11 and the frame 14. The edge 16 is made of a rubber material such as elastomer, for example.

[0025] Although not shown in the diagram, the edge 16 has an annular shape when viewed in the direction along the axis AX. The edge 16 has an inner portion fixed to the diaphragm 11, an outer portion fixed to the frame 14, and a connecting portion that connects the inner portion and the outer portion to allow vibration of the diaphragm 11.

[0026] The fixing portion 17 is a structure that is fixed to the frame 14. The fixing portion 17 is made of a resin composition and is integrally formed with a plurality of support members 30 by insert molding. Details of the resin composition will be described later. In the example shown in Figures 1 and 2, the fixing portion 17 is provided on the surface of the frame 14 facing the X2 direction and is integrally formed with the frame 14. Also, as shown in Figure 2, the fixing portion 17 is divided into three parts spaced apart from each other in the circumferential direction of the frame 14.

[0027] The illustrated shape of the fixing part 17 is just one example. The shape of the fixing part 17 is not limited to the illustrated example and is arbitrary; for example, it may be an annular shape that extends around the entire circumference of the frame 14. Also, the fixing part 17 is not limited to being provided on the flange 14a, but may be provided on a part of the frame 14 other than the flange 14a. Furthermore, the fixing part 17 is not limited to being integrally composed with the frame 14, but may be composed of a separate member from the frame 14. In this case, the fixing part 17 is fixed to the frame 14 by adhesive or screwing. Also, the fixing part 17 is not limited to being directly fixed to the frame 14, but may be indirectly fixed to the frame 14 via another structure. For example, the fixing part 17 may be fixed to the magnetic circuit 13 by adhesive or screwing.

[0028] The speaker unit 10 described above is supported by the mounting member 20 via the support member 30. Note that the shape and other aspects of the speaker unit 10 shown in the illustration are merely examples. The shape and other aspects of the speaker unit 10 are not limited to the illustrated example and are arbitrary.

[0029] The mounting member 20 is a member that is attached to the object to be mounted 200. The mounting member 20 is made of a resin composition and is integrally formed with a plurality of support members 30 by insert molding. Details of the resin composition will be described later.

[0030] In the examples shown in Figures 1 and 2, the mounting member 20 has a base 21 and a flange 22. The base 21 is generally cylindrical with an axis AX at its center and is arranged to surround the outer circumference of the frame 14. The inner diameter of the base 21 is larger than the outer diameter of the frame 14. A flange 22 is provided on the outer surface of the base 21, projecting radially outward. In the example shown in Figure 1, the object to be mounted 200 is fixed to the surface of the flange facing the X2 direction by screws or the like.

[0031] In the example shown in Figure 2, both the outer circumference of the frame 14 and the inner circumference of the mounting member 20 are elliptical when viewed along the axis AX. Here, the flange 22 of the mounting member 20 has a plurality of portions that protrude radially outward, and each of these portions is provided with a screw hole 22a used for screw fastening to the object to be mounted 200.

[0032] Note that the illustrated shape of the mounting member 20 is just one example. The shape of the mounting member 20 is not limited to the illustrated example and can be arbitrary; for example, it may be circular or polygonal when viewed in the direction along the axis AX. Also, the position and number of screw holes 22a are not limited to the illustrated example and can be arbitrary. Furthermore, the mounting member 20 may be composed of two or more members.

[0033] Each of the multiple support members 30 is a strip-shaped or linear member that supports the speaker unit 10 by connecting the fixing part 17 and the mounting member 20. In this embodiment, the multiple support members 30 are integrally formed with both the fixing part 17 and the mounting member 20, thereby connecting the fixing part 17 and the mounting member 20. Note that "integrally formed" means that they are integrated by insert molding.

[0034] Each support member 30 is made of a material that is, for example, difficult to stretch in the longitudinal direction and flexible enough to deform against bending and twisting. The constituent materials of the support members 30 will be described in detail later.

[0035] Multiple support members 30 are arranged with spacing in the circumferential direction. In this embodiment, as shown in Figure 2, three support members 30 corresponding to the three fixing parts 17 are arranged with spacing in the circumferential direction. This allows for more stable support of the speaker unit 2 compared to configurations where the speaker unit 2 is supported by two or fewer support members 30. Each support member 30 has a shape that is folded multiple times in the radial direction, meandering radially while extending circumferentially. Here, one end of each support member 30 in the longitudinal direction is joined to the fixing part 17, while the other end of each support member 30 in the longitudinal direction is joined to the mounting member 20. In addition, each folded portion of each support member 30 is joined to the fixing part 17 or the mounting member 20. By having each support member 30 in this folded shape, the number of support members 30 supporting the speaker unit 2 can be substantially greater than the number of installation locations for the support members 30. As a result, the speaker unit 2 can be stably supported.

[0036] Furthermore, the arrangement of the support members 30 in the circumferential direction is not limited to the illustrated example and is arbitrary. The number of support members 30 is not limited to three, but may be four or more. Also, the number of folds of each support member 30 is not limited to the illustrated example and is arbitrary. Moreover, each support member 30 is not limited to connecting the fixing part 17 and the mounting member 20 in a folded state, but may, for example, connect the fixing part 17 and the mounting member 20 without being folded. Also, when each support member 30 has a folded shape, both ends of each support member 30 in the longitudinal direction may be joined to the fixing part 17, or both ends of each support member 30 in the longitudinal direction may be joined to the mounting member 20.

[0037] The multiple support members 30 described above reduce axial vibrations generated in the mounting member 20 by converting the motion caused by the axial vibration of the speaker unit 2 into the rotational motion of a pendulum. This suppresses the transmission of vibrations from the speaker unit 2 to the outside. In this way, by connecting the fixing part 17 and the mounting member 20 via the strip-shaped or linear support members 30, the transmission of vibrations from the speaker unit 10 to the external mounting object 200 can be suppressed.

[0038] Furthermore, since the support member 30 is a strip-shaped or linear member, the cost of the support member 30 can be reduced compared to a configuration in which the support member 30 is a dedicated spring member or the like. As a result, the cost of the speaker device 1 can be reduced. In addition, as mentioned above, since the multiple support members 30 are integrated with both the fixing part 17 and the mounting member 20, the number of man-hours and parts required to assemble the support members 30 can be reduced compared to a configuration in which the multiple support members 30 are fixed to the fixing part 17 and the mounting member 20 respectively by screws or the like, and in this respect as well, the cost of the speaker device 1 can be reduced.

[0039] In this embodiment, since multiple support members 30 are integrally configured with both the fixing portion 17 and the mounting member 20, the number of man-hours and parts required to assemble the support members 30 can be reduced compared to an embodiment in which multiple support members 30 are integrally configured with only one of the fixing portion 17 or the mounting member 20.

[0040] The sealing member 40 is a flexible, film-like or sheet-like member that seals the gap between the frame 14 and the mounting member 20. The sealing member 40 is made of, for example, a rubber material. However, the material constituting the sealing member 40 is not limited to rubber, and may be, for example, a resin material. Furthermore, the sealing member 40 may be formed integrally with the edge 16 described above.

[0041] Although not shown in the figures, the sealing member 40 has an annular shape when viewed in the direction along the axis AX. The sealing member 40 has an inner portion fixed to the frame 14, an outer portion fixed to the mounting member 20, and a connecting portion that connects the inner portion and the outer portion. The sealing member 40 may be provided as needed or omitted.

[0042] 1-2. Function of the support member Figure 3 is an explanatory diagram of the operation of a strip-shaped or linear support member 30. Figure 3 schematically shows a state in which the speaker unit 10 is suspended from the mounting member 20 via one support member 30. As shown in Figure 3, tension is applied to at least one of the aforementioned multiple support members 30 because the speaker unit 10 is suspended from it. On the other hand, although not shown, no such tension is applied to the other support members 30. As a result, the speaker unit 10 swings like a pendulum with the connection point between the at least one support member 30 and the mounting member 20 as the pivot point. In this embodiment, the support member 30 shown in Figure 3 corresponds to the two upper support members 30 in Figure 2 out of the three support members 30.

[0043] If we let θ be the inclination angle of the support member 30 with respect to the direction of gravity Yg, x be the axial distance traveled by the speaker unit 10 relative to the case where the angle θ is 0°, and l be the length of the support member 30 when the speaker unit 10 is suspended from the mounting member 20, then the relationship between the angle θ, distance x, and length l is expressed by equation (1). Furthermore, the angle θ can be expressed by equation (2) by rearranging equation (1).

[0044] x / l = sinθ ... (1) θ = arcsin(x / l) ... (2) From equation (2), if the length l of the support member 30 is sufficiently greater than the distance x (l >> x), the angle θ can be considered as 0. The length l is determined, for example, by the elongation rate of the support member 30 and the mass of the speaker unit 10.

[0045] Furthermore, if the mass of the speaker unit 10 is m and the acceleration of the speaker unit 10 in the axial direction is a, the force acting on the speaker unit 10 in the axial direction is expressed as the product of the mass m and the acceleration a (ma). Also, the force acting on the speaker unit 10 in the direction of gravity Yg is expressed as the product of the mass m and the acceleration due to gravity g (mg), where g is the acceleration due to gravity.

[0046] At the connection point between the support member 30 and the speaker unit 10, tension is generated such that a force opposite to the direction of gravity Yg balances "mg", and a force opposite to the direction of the force acting on the speaker unit 10 along the axial direction balances "ma". Therefore, the force F acting on the support member 30 at the connection point between the support member 30 and the mounting member 20 (the pivot point of the pendulum) is expressed by equation (3). Also, the axial force Fx acting at the connection point between the support member 30 and the mounting member 20 is expressed by equation (4). Note that in equations (3) and (4), the multiplication symbol (·) is written only after "ma" and "mg" to make the equations easier to read.

[0047] F=mg cosθ+ma sinθ (3) Fx=(mg·cosθ+ma·sinθ)sinθ ···(4) From equation (4), for example, when the angle θ is 0°, the force Fx is 0. Also, from equations (3) and (4), it can be seen that the force Fx decreases as the angle θ decreases. For example, when the length l of the support member 30 is 10 mm and the distance x is 1 mm, from equations (1) to (4), it can be seen that the force Fx is suppressed to 1 / 10 (-20 dB) of the force F.

[0048] In this way, by converting the axial motion acting on the speaker unit 10 into the rotational motion of a pendulum, the axial force Fx acting on the mounting member 20 can be reduced. As a result, the transmission of vibrations from the speaker unit 10 to the mounting member 20 can be suppressed.

[0049] Furthermore, the resonant frequency of the speaker unit 10 when it is suspended by the support member 30 is calculated as the resonant frequency of a pendulum with the speaker unit 10 as the weight, based on the length l of the support member 30 and the acceleration due to gravity g. For example, the angular frequency ω of the speaker unit 10 is expressed by equation (5). The resonant frequency f of the speaker unit 10 is expressed by equation (6) by rearranging equation (5) based on the relationship "ω = 2πf".

[0050] ω = √(g / l) ... (5) f = (1 / 2π)√(g / l) ... (6) The speaker unit 10 and the multiple support members 30 are configured such that the resonant frequency f of the speaker unit 10 is lower than the lowest resonant frequency of the speaker device 1.

[0051] For example, if the length l of the support member 30 is 10 mm (l = 0.01 m), the resonant frequency f of the speaker unit 10 is approximately 5 Hz, according to equation (6). Therefore, if the speaker device 1 is a woofer with a minimum resonant frequency of approximately 40 Hz to 60 Hz (for example, a car door speaker), and the length l of the support member 30 is 10 mm, the resonant frequency f of the speaker unit 10 is lower than the minimum resonant frequency of the speaker device 1.

[0052] Furthermore, the lowest resonant frequency of speaker device 1 corresponds to the lower limit of the frequency range of sound input to speaker unit 10 or the frequency range of sound output from speaker unit 10. Therefore, in the above assumption, the resonant frequency f of speaker unit 10 is lower than the frequency range of sound input to speaker unit 10 or the frequency range of sound output from speaker unit 10. This makes it possible to suppress a decrease in the sound quality of the sound emitted from speaker unit 10.

[0053] Here, another configuration to suppress the transmission of vibrations from the speaker unit 10 to the outside is to use a leaf spring instead of the support member 30. However, a configuration using a leaf spring would require expensive materials such as spring steel, leading to increased costs. Furthermore, a configuration using a leaf spring would require a stopper to limit the displacement of the leaf spring. This would not only increase costs due to the stopper, but the collision noise caused by the stopper would also be a source of unwanted noise.

[0054] In contrast, in the configuration using a strip-shaped or linear support member 30 as in this embodiment, the support member 30 is made of relatively inexpensive material, thus reducing costs. Furthermore, since it is possible to use commercially available chains or strings as the support member 30, costs can be reduced in this respect as well. Moreover, since the axial movement of the speaker unit 10 is restricted by the tension of the multiple support members 30, there is no need to provide a stopper, and as a result, the cost increase and noise problems associated with stoppers are also resolved.

[0055] 1-3. Details of the support members Figure 4 is an explanatory diagram of the support member 30 in the first embodiment. Figure 5 is an explanatory diagram of the fixing part 17 and the mounting member 20 in the first embodiment. In Figure 4, one support member 30 is shown in the axial direction. However, in Figure 4, for ease of drawing, the fixing part 17 and the mounting member 20 are simply shown by dashed lines. In Figure 5, cross-sections of the fixing part 17 and the mounting member 20 are shown cut along the radial direction.

[0056] As shown in Figures 4 and 5, the support member 30 has a string portion 31 and a plurality of installation members 32.

[0057] The string portion 31 is a part of the support member 30 and is a strip-shaped or linear portion. In the examples shown in Figures 4 and 5, the string portion 31 is composed of a strip-shaped or linear member that extends over the entire length of the support member 30. However, the string portion 31 does not need to extend over the entire length of the support member 30, and is not limited to extending between adjacent installation members 32. For example, it may be composed of multiple members divided within the installation member 32.

[0058] Each of the multiple mounting members 32 is a part of the support member 30, with a width W2 greater than the width W1 of the string portion 31, and is fixed to the string portion 31. In the examples shown in Figures 4 and 5, each mounting member 32 has an elongated shape in the longitudinal direction of the string portion 31. The shape of the mounting member 32 is not limited to the illustrated examples and can be arbitrary, for example, spherical or elliptical.

[0059] Multiple mounting members 32 are arranged at intervals from each other along the length of the string portion 31. This allows the support member 30 to be positioned relative to the mold using the mounting members 32 as a reference when insert molding the fixing portion 17 and the mounting member 20 with the support member 30 as an insert part, as will be described later. This simplifies the manufacturing process, and as a result, the cost of the speaker unit 10 can be reduced.

[0060] In this embodiment, the multiple mounting members 32 are arranged at equal intervals along the length of the string portion 31. Using these mounting members 32 as a reference, the lengths of the multiple support members 30 between the fixing portion 17 and the mounting member 20 can be made equal by the distance La between two adjacent mounting members 32 along the length of the string portion 31. This improves the quality of the speaker device 1. Furthermore, by using commercially available resin ball chains as support members 30, the cost of the support members 30 can be reduced.

[0061] Examples of constituent materials for the cord portion 31 and the mounting member 32 include resin compositions, metals, organic fibers, or inorganic fibers. The constituent materials for the cord portion 31 and the mounting member 32 may be the same or different. Furthermore, the cord portion 31 and the mounting member 32 may be formed by integral molding, or they may be formed separately and then fixed to each other by adhesive or crimping.

[0062] The cord portion 31 is preferably made of a material that is highly flexible and resistant to stretching, and is preferably made of organic fibers composed of crystalline polymers such as aramid fibers. This makes it possible to give the cord portion 31 excellent mechanical strength.

[0063] The strength of each of the cord portions 31 is preferably higher than the strength of the mounting member 20 and the fixing portion 17. This reduces wear on the support member 30. In this specification, "strength" refers to the resistance to deformation or fracture, and means one or more of the following indicators: yield strength, tensile strength, ductility, toughness, bending strength, Mohs hardness, Rockwell hardness, Vickers hardness, Shore hardness, Young's modulus, etc.

[0064] Here, the mounting member 20 and the fixing part 17 are made of a resin composition. The resin composition includes a thermoplastic resin or a thermosetting resin. Examples of thermoplastic resins include polyethylene, polypropylene, polyolefins such as ethylene-vinyl acetate copolymer, modified polyolefins, polyamides (e.g., nylon 6, nylon 46, nylon 66, nylon 610, nylon 612, nylon 11, nylon 12, nylon 6-12, nylon 6-66), thermoplastic polyimides, liquid crystal polymers such as aromatic polyesters, polyphenylene oxide, polyphenylene sulfide, polycarbonate, polymethyl methacrylate, polyether, polyetheretherketone, polyetherimide, polyacetal, ABS (acrylonitrile-butadiene-styrene copolymer), PBT (polybutylene terephthalate), etc., and one of these can be used alone or two or more can be used in combination by mixing, etc. Examples of thermosetting resins include epoxy resins, phenolic resins, urea resins, melamine resins, polyester resins, polyimide resins, silicone resins, and polyurethane resins. These can be used individually or in combination of two or more types by mixing or other means.

[0065] The resin composition constituting the mounting member 20 and the fixing part 17 may contain, in addition to the resin, an inorganic filler or an organic filler. Examples of inorganic fillers include oxides such as silica, alumina, diatomaceous earth, titanium oxide, iron oxide, zinc oxide, magnesium oxide, and metal ferrite; hydroxides such as aluminum hydroxide and magnesium hydroxide; carbonates such as calcium carbonate, magnesium carbonate, dolomite, and dawsonite; sulfates or sulfites such as calcium sulfate, barium sulfate, ammonium sulfate, and calcium sulfite; talc, mica, clay, glass fiber, silicates such as calcium silicate, montmorillonite, and bentonite; borates such as zinc borate, barium metaborate, aluminum borate, calcium borate, and sodium borate; carbon such as carbon black, graphite, and carbon fiber; and other materials such as iron powder, copper powder, aluminum powder, zinc oxide, molybdenum sulfide, boron fiber, potassium titanate, and lead zirconate titanate. Examples of organic fillers include powders of various thermosetting or thermoplastic resins such as alkyd resins, epoxy resins, silicone resins, phenolic resins, polyesters, acrylic resins, acetal resins, polyethylene, polyethers, polycarbonates, polyamides, polysulfones, polystyrene, polyvinyl chloride, fluororesins, polypropylene, and ethylene-vinyl acetate copolymers, or powders of copolymers of these resins. Other examples of organic fillers include aromatic or aliphatic polyamide fibers, polypropylene fibers, polyester fibers, and aramid fibers. By using the above fillers, the mechanical properties such as the hardness of the mounting member 20 and the fixing part 17 can be adjusted according to the amount of filler used. The resin composition members constituting the mounting member 20 and the resin composition constituting the fixing part 17 may be the same as or different from each other.

[0066] Preferably, the strength of each of the multiple mounting members 32 is lower than the strength of the string portion 31, and higher than the strength of the mounting member 20 and the fixing portion 17. This reduces damage to the mounting member 20 and the fixing portion 17 compared to a configuration in which the string portion 31 is directly attached to the mounting member 20 or the fixing portion 17. This relative strength relationship can be achieved, for example, by making the mounting members 32 from a resin such as polyacetal when the string portion 31 is made of aramid fiber, and making the fixing portion 17 and mounting member 20 from a resin such as polypropylene.

[0067] From the viewpoint of achieving the aforementioned relationship of relative strength, it is preferable that the installation member 32 be made of a resin composition, similar to the mounting member 20 and the fixing part 17. Here, the type of resin in the resin composition constituting the installation member 32 may be the same as or different from the type of resin in the resin composition constituting the mounting member 20 and the fixing part 17. When the type of resin in the resin composition constituting the installation member 32 is different from the type of resin in the resin composition constituting the mounting member 20 and the fixing part 17, the aforementioned relationship of relative strength can be easily achieved. Even when the type of resin in the resin composition constituting the installation member 32 is the same as the type of resin in the resin composition constituting the mounting member 20 and the fixing part 17, the aforementioned relationship of relative strength can also be achieved, for example, by making the type or amount of filler different from each other.

[0068] As shown in Figure 4, the support member 30 is integrated with the fixing part 17 and the mounting member 20 by insert molding. Here, the majority of each mounting member 32 is embedded in the fixing part 17 or the mounting member 20.

[0069] More specifically, the support member 30 has multiple mounting members 32, which are divided into multiple mounting members 32 embedded in the fixing portion 17 and multiple mounting members 32 embedded in the attachment member 20. In this embodiment, of two mounting members 32 adjacent to each other in the longitudinal direction of the string portion 31, one mounting member 32 is embedded in the fixing portion 17, and the other mounting member 32 is embedded in the attachment member 20. This allows the length l of the support member 30 shown in Figure 3 above to be distance La.

[0070] Furthermore, the fixing portion 17 is provided with a recess 17a formed by the protrusion 114 of the lower mold 110, which will be described later, during insert molding. In the example shown in Figure 5, the recess 17a is a recess facing the X2 direction and, when viewed in the axial direction, overlaps with the multiple installation members 32 embedded in the fixing portion 17. Note that the recess 17a may be divided for each installation member 32 embedded in the fixing portion 17.

[0071] Similarly, the mounting member 20 is provided with a recess 21a formed by the protrusion 115 of the lower mold 110, which will be described later, during insert molding. In the example shown in Figure 5, the recess 21a is a recess facing the X2 direction and, when viewed in the axial direction, overlaps with the multiple installation members 32 embedded in the mounting member 20. The recess 21a may be divided for each installation member 32 embedded in the mounting member 20.

[0072] 1-4. Method for manufacturing a speaker device The manufacturing method for the speaker device 1 includes a connection step in which a frame 14 and a mounting member 20 are formed by insert molding using a plurality of support members 30 as insert parts. If the fixing part 17 is constructed separately from the frame 14, the parts constituting the fixing part 17 are formed in the connection step. Also, if the mounting member 20 is composed of a plurality of members, the member that is connected to the support member 30 is formed in the connection step.

[0073] Furthermore, after the connection process, the speaker device 1 is obtained by assembling the parts other than the fixing part 17, mounting member 20, and multiple support members 30 of the speaker device 1 in an appropriate manner using a known method.

[0074] Figure 6 is an explanatory diagram of the mold 100 used in the connection step of the manufacturing method of the speaker device 1 according to the first embodiment. Figure 7 is a plan view of the lower mold 110 in the first embodiment. In the connection step, first, the mold 100 is prepared as shown in Figure 6.

[0075] The mold 100 has a lower mold 110 and an upper mold 120. The lower mold 110 and the upper mold 120, by clamping, form a cavity C1 for forming the frame 14 and a cavity C2 for forming the mounting member 20, as shown in Figure 6.

[0076] The lower mold 110 is a mold for forming the frame 14 and the back side of the mounting member 20. The lower mold 110 is provided with a groove 111 and recesses 112 and 113. The groove 111 and recesses 112 and 113 are located between the molding surface for the frame 14 and the molding surface for the mounting member 20. The groove 111 is a recess for positioning the string portion 31. The recess 112 is a recess for radial positioning the mounting member 32 in the cavity C1. The recess 113 is a recess for radial positioning the mounting member 32 in the cavity C2. In addition, a protrusion 114 is provided on the molding surface of the lower mold 110 for the frame 14. The protrusion 114 is a projection for axial positioning the mounting member 32 in the cavity C1. Furthermore, a protrusion 115 is provided on the molding surface of the lower mold 110 for the mounting member 20. The protrusion 115 is a projection for axial positioning of the installation member 32 within the cavity C2.

[0077] In the example shown in Figure 7, the protrusion 114 is provided across multiple mounting members 32 arranged in the cavity C1. The protrusion 115 is provided across multiple mounting members 32 arranged in the cavity C2. Note that the protrusion 114 may be divided for each mounting member 32 arranged in the cavity C1. The protrusion 115 may be divided for each mounting member 32 arranged in the cavity C2.

[0078] On the other hand, the upper mold 120 is a mold for forming the front sides of the frame 14 and the mounting member 20. The upper mold 120 is provided with a pressing surface 121 and recesses 122 and 123. The pressing surface 121 and recesses 122 and 123 are located between the molding surface for the frame 14 and the molding surface for the mounting member 20. The pressing surface 121 is a surface for pressing the string portion 31, which is placed in the groove 111, toward the groove 111. The recess 122 is a recess for radial positioning of the mounting member 32, which is embedded in the fixing portion 17. The recess 123 is a recess for radial positioning of the mounting member 32, which is embedded in the mounting member 20.

[0079] Here, the length of the groove 111, i.e., the length between recesses 112 and 113, is equal to or slightly greater than the length of the string portion 31 between two adjacent mounting members 32 in the longitudinal direction of the support member 30. Also, the width and depth of the groove 111 are equal to or slightly greater than the width W1 of the string portion 31. Furthermore, the width of the recess formed by recesses 112 and 122 in the clamped state is equal to or slightly greater than the width W2 of the mounting member 32. Similarly, the width of the recess formed by recesses 113 and 123 in the clamped state is equal to or slightly greater than the width W2 of the mounting member 32.

[0080] Figure 8 is an explanatory diagram of the insert process in the first embodiment. After the mold 100 is prepared as described above, the insert process is performed as shown in Figure 8. In the insert process, a plurality of support members 30 are placed in the lower mold 110.

[0081] Here, as shown in Figure 8, of the two mounting members 32 adjacent to each other in the longitudinal direction of the support member 30, one end of mounting member 32 is inserted into the recess 112, and the other end of mounting member 32 is inserted into the recess 113. At this time, the one mounting member 32 is positioned on the protrusion 114, and the other mounting member 32 is positioned on the protrusion 115. Furthermore, the string portion 31 between the two mounting members 32 is inserted into the groove 111.

[0082] As described above, the support member 30 is positioned relative to the lower mold 110.

[0083] Figure 9 is an explanatory diagram of the mold clamping process in the first embodiment. After the inserting process described above, the mold clamping process of the mold 100 is performed as shown in Figure 9.

[0084] Here, as shown in Figure 9, of the two mounting members 32 adjacent to each other in the longitudinal direction of the support member 30, one end of mounting member 32 is inserted into a recess formed by recesses 112 and 122, and the other end of mounting member 32 is inserted into a recess formed by recesses 113 and 123. At this time, the string portion 31 between the two mounting members 32 is pressed toward the groove 111 by the pressing surface 121 while inserted into the groove 111.

[0085] As described above, the support member 30 is positioned relative to the lower mold 110 and the upper mold 120.

[0086] Figure 10 is an explanatory diagram of the injection process in the first embodiment. After the mold clamping process described above, the injection process is performed in that state as shown in Figure 10. In the injection process, the resin composition is injected into the mold 100 in a state that has been softened by heating. As a result, the mold 100 is filled with the resin composition.

[0087] Then, the temperature of the resin composition inside the mold 100 is lowered to a temperature below its softening point, causing it to solidify or harden. This results in a frame 14 and mounting member 20 integrated with multiple support members 30. After the mold 100 is opened, the frame 14 and mounting member 20 integrated with the multiple support members 30 are removed from the mold 100.

[0088] As described above, the connection process involves connecting a plurality of strip-shaped or linear support members 30 to the fixing portion 17 and the mounting member 20 so as to extend along the radial direction of the speaker unit 10.

[0089] The connection process in this embodiment includes a step of forming both the fixing portion 17 and the mounting member 20 by insert molding, in which multiple support members 30 are used as insert parts. This makes it possible to reduce costs while suppressing the transmission of vibrations from the speaker unit 10 to the outside.

[0090] 2. Second Embodiment The following describes a second embodiment of this disclosure. For elements whose operation and function are the same as in the first embodiment in the embodiments described below, the reference numerals used in the description of the first embodiment will be reused, and detailed descriptions of each will be omitted as appropriate.

[0091] Figure 11 is an explanatory diagram of the support member 30A in the second embodiment. Figure 12 is an explanatory diagram of the fixing part 17A and the mounting member 20A in the second embodiment. As shown in Figures 11 and 12, the speaker device 1A of this embodiment comprises a speaker unit 10A, a mounting member 20A, and a plurality of support members 30A.

[0092] As shown in Figure 11, the support member 30A is configured in the same way as the support member 30 of the first embodiment, except that the installation member 32 of the first embodiment is omitted. That is, the support member 30A is composed of a string portion 31.

[0093] As shown in Figure 12, the support member 30A is integrated with the fixing part 17A and the mounting member 20A by insert molding. Here, the support member 30A has a shape that is folded multiple times in the radial direction so as to meander in the radial direction and extend in the circumferential direction. Here, both ends of the support member 30A in the longitudinal direction are joined to the fixing part 17A. In addition, each folded part of the support member 30A is joined to the fixing part 17A or the mounting member 20A. Note that both ends of the support member 30 in the longitudinal direction may be joined to the mounting member 20A. Alternatively, one end of the support member 30A in the longitudinal direction may be fixed to the fixing part 17A and the other end may be joined to the mounting member 20A.

[0094] The speaker unit 10A is configured in the same way as the speaker unit 10 of the first embodiment, except that it includes a fixing part 17A instead of the fixing part 17 of the first embodiment. The fixing part 17A is configured in the same way as the fixing part 17 of the first embodiment, except that it fixes a support member 30A instead of the support member 30.

[0095] The fixing portion 17A is provided with recesses 17b and 17c formed by the protrusions 116 and 117 of the lower mold 110A, described later, during insert molding. In the example shown in Figure 12, the recesses 17b are depressions facing the X2 direction and are provided for each portion of the support member 30A that is embedded in the fixing portion 17A. The recesses 17c are depressions provided on the bottom surface of the recesses 17b and are provided for each portion of the support member 30A that is embedded in the fixing portion 17A. The width of the recesses 17c is smaller than the width of the recesses 17b. Alternatively, instead of multiple recesses 17b, a single recess spanning multiple recesses 17c may be provided.

[0096] The mounting member 20A is configured in the same way as the mounting member 20 of the first embodiment, except that it replaces the support member 30 with a support member 30A that is fixed in place.

[0097] The mounting member 20A is provided with recesses 21b and 21c formed by the protrusions 118 and 119 of the lower mold 110A, described later, during insert molding. In the example shown in Figure 12, the recesses 21b are recesses facing the X2 direction and are provided for each portion of the support member 30A that is embedded in the mounting member 20A. The recesses 21c are recesses provided on the bottom surface of the recesses 21b and are provided for each portion of the support member 30A that is embedded in the mounting member 20A. The width of the recesses 21c is smaller than the width of the recesses 21b. Alternatively, instead of multiple recesses 21b, a single recess spanning multiple recesses 21c may be provided.

[0098] As described above, in the support member 30A integrated with the fixing part 17A and the mounting member 20A, the distance Lb between the fixing part 17A and the mounting member 20A corresponds to the length l shown in Figure 3 above.

[0099] Figure 13 is an explanatory diagram of mold 100A used in the manufacturing method of speaker device 1A according to the second embodiment. Figure 14 is a plan view of the lower mold 110A in the second embodiment. Mold 100A has a lower mold 110A and an upper mold 120A.

[0100] The lower mold 110A is configured similarly to the lower mold 110 of the first embodiment, except that the recesses 112 and 113 of the first embodiment are omitted, and the protrusions 116, 117, 118, and 119 are replaced with the protrusions 114 and 115 of the first embodiment.

[0101] The protrusions 116 are projections for axial positioning of the string portion 31 within the cavity C1, and are provided for each portion embedded in the fixing portion 17A of the support member 30A. The protrusions 117 are provided at the top of the protrusions 116, and are projections for radial positioning of the string portion 31 within the cavity C1, and are provided for each portion embedded in the fixing portion 17A of the support member 30A. The width of the protrusions 117 is smaller than the width of the protrusions 116. Alternatively, instead of multiple protrusions 116, a single protrusion spanning multiple protrusions 117 may be provided.

[0102] The protrusions 118 are projections for axial positioning of the string portion 31 within the cavity C2, and are provided for each portion of the support member 30A that is embedded in the mounting member 20A. The protrusions 119 are provided at the top of the protrusions 118, and are projections for radial positioning of the string portion 31 within the cavity C2, and are provided for each portion of the support member 30A that is embedded in the mounting member 20A. The width of the protrusions 119 is smaller than the width of the protrusions 118. Alternatively, instead of multiple protrusions 118, a single protrusion spanning multiple protrusions 119 may be provided.

[0103] Figure 15 is an explanatory diagram of the insert process in the second embodiment. After the mold 100A is prepared as described above, the insert process is performed as shown in Figure 15. In the insert process, a plurality of support members 30A are placed in the lower mold 110A.

[0104] Here, as shown in Figure 15, the support member 30A is arranged such that it is folded back in the cavity C1 by being hooked onto each protrusion 117 on each protrusion 116, and folded back in the cavity C2 by being hooked onto each protrusion 119 on each protrusion 118. Here, as in the first embodiment, the string portion 31 of the support member 30A located between the cavity C1 and the cavity C2 is inserted into the groove 111.

[0105] As described above, the support member 30A is positioned relative to the lower mold 110A.

[0106] Figure 16 is an explanatory diagram of the mold clamping process in the second embodiment. After the inserting process described above, the mold clamping process of mold 100A is performed as shown in Figure 16.

[0107] Here, as shown in Figure 16, each folded portion of the support member 30A is positioned in either cavity C1 or cavity C2. At this time, similar to the first embodiment, the string portion 31 located between cavity C1 and cavity C2 is inserted into groove 111 and pressed toward groove 111 by the pressing surface 121.

[0108] As described above, the support member 30A is positioned relative to the lower mold 110A and the upper mold 120A.

[0109] After the mold clamping process described above, although not shown in the figures, an injection molding process and the like are performed, similar to the first embodiment, to obtain a fixed part 17A and a mounting member 20A integrated with a plurality of support members 30A.

[0110] The second embodiment described above also makes it possible to reduce the cost of the speaker device 1A.

[0111] 3. Variant This disclosure is not limited to the embodiments described above, and various modifications are possible as described below. Furthermore, each embodiment and each modification may be combined as appropriate.

[0112] 3-1. Variation 1 Figure 17 is an explanatory diagram of speaker device 1B according to modification 1. Speaker device 1B is configured in the same way as speaker device 1A of the second embodiment, except that it is equipped with mounting member 20B instead of mounting member 20A of the second embodiment.

[0113] The mounting member 20B is configured in the same way as the mounting member 20A of the second embodiment, except that the support member 30A is joined to it by screw fastening using screws 23 and washers 24. The washers 24 may be used as needed or omitted. The mounting member 20B may also be joined to the support member 30A by a method other than screw fastening, such as adhesive.

[0114] The above modification 1 also helps to reduce the cost of the speaker device 1B. In modification 1, multiple support members 30A are integrally formed with either the fixing part 17A or the mounting member 20B. Here, the speaker unit 10A and the support member 30A are integrally formed, while the mounting member 20B and the support member 30A are detachably joined. Therefore, the mounting member 20B can be changed according to the shape of the object to be mounted 200.

[0115] In addition, similar to the joining of the mounting member 20B and the support member 30A in Modification 1, the mounting member 20 and the support member 30 may be joined by screws or the like in the first embodiment. In this case as well, the same effects as in Modification 1 can be obtained. 3-2. Variation 2 Figure 18 is an explanatory diagram of the speaker device 1C according to the second modification. The speaker device 1C is configured in the same way as the speaker device 1A of the second embodiment, except that it includes a speaker unit 10C instead of the speaker unit 10A of the second embodiment. The speaker unit 10C is configured in the same way as the speaker device 10A of the second embodiment, except that it includes a fixing part 17C instead of the fixing part 17A.

[0116] The fixing portion 17C is configured in the same way as the fixing portion 17A of the second embodiment, except that the support member 30A is joined by screw fastening using screws 18 and washers 19. The washers 19 may be used as needed or omitted. The fixing portion 17C may also be joined to the support member 30A by a method other than screw fastening, such as adhesive.

[0117] The above modification 2 also helps to reduce the cost of the speaker device 1C. In modification 2, multiple support members 30A are integrally formed with either the fixing part 17C or the mounting member 20A. Specifically, the mounting member 20A and the support member 30A are integrally formed, while the fixing part 17C and the support member 30A are detachably joined. Therefore, the speaker unit 10C can be changed by replacement or other means depending on the desired sound quality, etc.

[0118] In addition, similar to the joining of the fixing part 17C and the support member 30A in Modification 2, the fixing part 17 and the support member 30 may be joined by screws or the like in the first embodiment. In this case as well, the same effects as in Modification 2 can be obtained.

[0119] 3-3. Modified Example 3 Figure 19 is an explanatory diagram of speaker device 1D according to modification 3. Speaker device 1D is configured similarly to speaker device 1, except that its shape and the number and arrangement of support members 30 are different. Specifically, speaker device 1D is configured similarly to speaker device 1 of the first embodiment, except that it has four support members 30, and that it includes speaker unit 10D instead of speaker unit 10 of the first embodiment, and mounting member 20D instead of mounting member 20 of the first embodiment.

[0120] The speaker unit 10D is configured similarly to the speaker unit 10 of the first embodiment, except that it includes a diaphragm 11D instead of the diaphragm 11 of the first embodiment, and a frame 14D instead of the frame 14 of the first embodiment. The diaphragm 11D is configured similarly to the diaphragm 11 of the first embodiment, except that it is circular when viewed in the direction along the axis AX. The frame 14D is configured similarly to the frame 14 of the first embodiment, except that it is circular when viewed in the direction along the axis AX, and that it includes a fixing part 17D instead of the plurality of fixing parts 17 of the first embodiment. The fixing part 17D is configured similarly to the fixing part 17 of the first embodiment, except that it is annular when viewed in the direction along the axis AX.

[0121] The mounting member 20D is configured in the same way as the mounting member 20 of the first embodiment, except that it has an annular shape when viewed in the direction along the axis AX.

[0122] In the third modified example, the four support members 30 are integrally formed with both the fixing portion 17D and the mounting member 20D. This connects the four support members 30 to the fixing portion 17D and the mounting member 20D. Here, the four support members 30 are arranged at equal intervals in the circumferential direction. Furthermore, two of the four support members 30 are arranged vertically, while the other two are arranged horizontally.

[0123] The speaker device 1D can also be made less expensive by the above modification 3. In modification 3, the number of support members 30 is not limited to the illustrated example, and may be three or five or more. Also, the arrangement of the multiple support members 30 in the circumferential direction is not limited to the illustrated example, and does not have to be at equal intervals.

[0124] 3-4. Variation 4 In the embodiments described above, a configuration in which each of the speaker units 10 is of the dynamic type is exemplified, but the invention is not limited to this, and the speaker unit of this disclosure may also use a conversion method such as a capacitor type (electrostatic type), ribbon type, ion type (discharge type), magnetic type, piezoelectric type, etc.

[0125] 4. Addendum From the forms or modifications illustrated above, for example, the following embodiments can be understood.

[0126] (Note 1) A first embodiment of the speaker device of the present disclosure comprises a speaker unit having a diaphragm, a frame, and a fixing portion; a mounting member to be attached to an object to be mounted; and a plurality of strip-shaped or linear support members that support the speaker unit by connecting the fixing portion and the mounting member, wherein the plurality of support members are integrally formed with one or both of the fixing portion and the mounting member.

[0127] According to the above embodiment, since the fixed part and the mounting member are connected via a strip-shaped or linear support member, the transmission of vibrations from the speaker unit to the external mounting object can be suppressed. Moreover, since the support member is a strip-shaped or linear member, the cost of the support member can be reduced compared to embodiments where the support member is a dedicated spring member or the like. As a result, the cost of the speaker device can be reduced. Furthermore, since multiple support members are integrated with one or both of the fixed part and the mounting member, the number of man-hours and parts required to assemble the support members can be reduced compared to embodiments where multiple support members are fixed to the fixed part and the mounting member by screws or the like, and in this respect as well, the cost of the speaker device can be reduced. Note that "integrated configuration" means, for example, integration by insert molding.

[0128] (Note 2) In the second embodiment, which is a preferred example of the first embodiment, the plurality of support members are integrally configured with both the fixing portion and the mounting member. According to the above embodiment, the number of man-hours and parts required when assembling the support members can be reduced compared to the embodiment in which the plurality of support members integrally configure only one of the fixing portion and the mounting member.

[0129] (Note 3) In the second embodiment, which is a preferred example of the first embodiment, the plurality of support members are integrally configured with either the fixing part or the mounting member. According to the above embodiment, when the speaker unit and the support member are configured integrally, the mounting member can be changed according to the shape of the object to be mounted. Also, when the mounting member and the support member are configured integrally, the speaker unit can be changed by replacement or the like according to the desired sound quality.

[0130] (Note 4) In a fourth embodiment, which is a preferred example of any of the first to third embodiments, each of the plurality of support members has a string portion and a plurality of mounting members that are spaced apart from each other in the longitudinal direction of the string portion. In the above embodiments, when insert molding the fixing portion and mounting member with the support member as an insert part, the support member can be positioned relative to the mold with respect to the mounting member. This simplifies the manufacturing process, and as a result, the cost of the speaker unit can be preferably reduced.

[0131] (Note 5) In the fifth embodiment, which is a preferred example of the fourth embodiment, the plurality of mounting members are arranged at equal intervals in the longitudinal direction of the string portion. In the above embodiments, the lengths of the plurality of support members between the fixing portion and the mounting member can be made equal to each other with respect to the mounting member. This makes it possible to improve the quality of the speaker device.

[0132] (Note 6) In the sixth embodiment, which is a preferred example of the fourth or fifth embodiment, the strength of the string portion is higher than the strength of the mounting member and the fixing portion. In the above embodiments, wear of the support member can be reduced.

[0133] (Note 7) In the seventh embodiment, which is a preferred example of the sixth embodiment, the strength of each of the plurality of mounting members is lower than the strength of the string portion, and higher than the strength of the mounting member and the fixing portion. In the above embodiment, damage to the mounting member and the fixing portion can be reduced.

[0134] (Note 8) A preferred example of a method for manufacturing a speaker device of the present disclosure is an eighth aspect of a method for manufacturing a speaker device comprising a speaker unit having a diaphragm, a frame, and a fixing portion, and a mounting member to be attached to an object, the method of manufacturing a speaker device comprising a plurality of strip-shaped or linear support members connected to the fixing portion and the mounting member, the method of connection comprising a step of forming one or both of the fixing portion and the mounting member by insert molding in which the plurality of support members are insert products.

[0135] In the above embodiment, it is possible to reduce costs while suppressing the transmission of vibrations from the speaker unit to the outside. [Explanation of Symbols]

[0136] 1...Speaker device, 1A...Speaker device, 1B...Speaker device, 1C...Speaker device, 1D...Speaker device, 2...Speaker unit, 10...Speaker unit, 10A...Speaker unit, 10C...Speaker unit, 10D...Speaker unit, 11...Diaphragm, 11D...Diaphragm, 12...Voice coil, 12a...Bobbin, 12b...Coil, 13...Magnetic circuit, 13a...Permanent magnet, 13b...Yoke, 14...Frame, 14D...Frame, 14a...Flange, 14b...Back plate, 15...Damper, 16...Edge, 17...Fixing part, 17A...Fixing part, 17C...Fixing part, 17D...Fixing part, 17a...Recess, 17b...Recess, 17c...Recess, 18...Screw, 19...Washer, 20...Mounting member, 20A...Mounting member, 20B...Mounting member, 20D...Mounting member, 21...Base, 2 1a...recess, 21b...recess, 21c...recess, 22...flange, 22a...screw hole, 23...screw, 24...washer, 30...support member, 30A...support member, 31...string part, 32...installation member, 40...sealing member, 100...type, 100A...type, 110...lower type, 110A...lower type, 111...groove, 112...recess, 113...recess, 114...protrusion, 115...protrusion, 116...protrusion, 117...protrusion, 118...protrusion, 119...protrusion, 120...upper mold, 120A...upper mold, 121...pressing surface, 122...recess, 123...recess, 200...object to be mounted, 210...opening, AX...axis, C1...cavity, C2...cavity, F...force, Fx...force, La...distance, Lb...distance, S1...space, S2...space, W1...width, W2...width, Yg...direction of gravity, a...acceleration, f...resonance frequency, g...acceleration due to gravity, m...mass, x...distance, θ...angle.

Claims

1. A speaker unit having a diaphragm, a frame, and a fixing part, Mounting member to be attached to the object to be mounted, The speaker unit is supported by a plurality of strip-shaped or linear support members connected to the fixing portion and the mounting member, The plurality of support members are integrally formed with one or both of the fixing portion and the mounting member. Speaker device.

2. The plurality of support members are formed integrally with both the fixing portion and the mounting member. The speaker device according to claim 1.

3. The plurality of support members are formed integrally with either the fixing portion or the mounting member. The speaker device according to claim 1.

4. Each of the aforementioned plurality of support members is The string part, The string portion comprises a plurality of mounting members arranged at intervals from one another in the longitudinal direction, The speaker device according to claim 1.

5. The plurality of installation members are arranged at equal intervals in the longitudinal direction of the string portion. The speaker device according to claim 4.

6. The strength of the string portion is higher than the strength of the mounting member and the fixing portion. The speaker device according to claim 4.

7. The strength of each of the aforementioned plurality of mounting members is lower than the strength of the string portion, and higher than the strength of the mounting member and the fixing portion. The speaker device according to claim 6.

8. A method for manufacturing a speaker device comprising a speaker unit having a diaphragm, a frame, and a fixing part, and a mounting member that is attached to an object to be mounted, The process includes connecting a plurality of strip-shaped or linear support members to the fixing portion and the mounting member, The connection step includes a step of forming one or both of the fixing portion and the mounting member by insert molding, in which the plurality of support members are made into insert products. A method for manufacturing a speaker device.

Images