JP2012034358A - Oscillating type movable member for speaker and speaker apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin speaker apparatus which can emit reproduction sound in large volume.SOLUTION: An oscillating type movable member for a speaker which is movable in accordance with oscillation of a voice coil includes a rigid link part, an angle of which is changed in accordance with oscillation of the voice coil; and a joint part provided at the end of the link part so as to make an angle change of the link part possible. The link part and the joint part is made of plural fibers and a resin to bind the fibers, and direction of the fibers are arranged along in a direction of inflection of the joint part or in a direction traversing a rotational axis.

Description

  The present invention relates to a speaker vibration system movable member and a speaker device.

A dynamic speaker device is known as a general speaker device (see, for example, Patent Document 1). As shown in FIG. 1, for example, the dynamic speaker device is joined to a frame 3J, a cone-shaped diaphragm 21J, an edge 4J that supports the diaphragm 21J on the frame 3J, and an inner peripheral portion of the diaphragm 21J. The voice coil bobbin 610J, the damper 7J that supports the voice coil bobbin 610J on the frame 3J, the voice coil 611J wound around the voice coil bobbin 610J, the yoke 51J, the magnet 52J, and the plate 53J, and the voice coil 611J are arranged. And a magnetic circuit in which a magnetic gap is formed. In this speaker device, when a voice signal is input to the voice coil 611J, the voice coil bobbin 610J vibrates by Lorentz force generated in the voice coil 611J in the magnetic gap, and the diaphragm 21J is driven by the vibration (Patent Document). 1).
Further, as an example of an edge for supporting a diaphragm on a frame and a damper for supporting a voice coil on a frame, a speaker damper is known in which cotton is impregnated with a molding resin such as phenol resin (see Patent Document 2).

JP-A-8-149596 (FIG. 1) Japanese Utility Model Publication No. 58-107692 (FIG. 1)

  In the dynamic speaker device described in Patent Document 1, for example, as shown in FIG. 1, a voice coil 611J is disposed on the opposite side to the acoustic radiation side of the diaphragm 21J, and the voice coil 611J and the voice coil bobbin 610J are arranged. The vibration direction is the same as the vibration direction of the diaphragm 21J. In such a speaker device, the region for vibrating the diaphragm 21J, the region for vibrating the voice coil bobbin 610J, the region where the magnetic circuit is disposed, and the like are in the vibration direction (acoustic radiation direction) of the diaphragm 21J. Therefore, the overall height of the speaker device must be relatively large.

  Specifically, as shown in FIG. 1, the size of the diaphragm 21J of the speaker device along the vibration direction is the same as the size of the cone-shaped diaphragm 21J along the vibration direction and the diaphragm 21J is supported by the frame 3J. The total height (a) of the edge 4J, the voice coil bobbin height (b) from the joint between the diaphragm 21J and the voice coil bobbin 610J to the upper end of the voice coil 611J, the total height (c) of the voice coil, and the lower end of the voice coil 611J The magnetic circuit mainly includes a magnet height (d) corresponding to a height from the upper surface of the yoke 51J to the yoke 51J, and the yoke 51J mainly includes a thickness (e) of the magnetic circuit. In such a speaker device, in order to ensure a sufficient vibration stroke of the diaphragm 21J, it is necessary to sufficiently secure the heights a, b, c, and d described above, and sufficient electromagnetic force is provided. In order to obtain it, it is necessary to sufficiently secure the heights of c, d, and e described above, and therefore, especially in a loudspeaker type speaker device, the overall height of the speaker device must be large.

  Thus, in the conventional speaker device, since the vibration direction of the voice coil bobbin 610J and the vibration direction of the diaphragm 21J are the same direction, if the amplitude of the diaphragm 21J is increased to obtain a large volume, In order to ensure the vibration stroke of the voice coil bobbin 610J, the overall height of the speaker device becomes large, and it is difficult to achieve thinning of the device. That is, there is a problem that it is difficult to achieve both a reduction in device thickness and an increase in volume.

  When the speaker damper shown in Patent Document 2 is used for a long period of time, the bending portion of the speaker damper is subjected to stress due to the bending motion to cause breakage, and the speaker damper supports the voice coil with respect to the frame. May not be possible. Similarly, the edge may be broken and the diaphragm may not be supported with respect to the frame.

  This invention makes it an example of a subject to cope with such a problem. That is, it is possible to provide a thin speaker device that can radiate a large volume of reproduced sound, to change the direction of vibration of the voice coil and efficiently transmit it to the diaphragm, and to attach the diaphragm or voice coil to the frame. It is an object of the present invention to support it well.

  In order to achieve such an object, a speaker vibration system movable member and a speaker device according to the present invention have at least the following configurations.

  A vibration system movable member for a speaker that is operable in accordance with vibration of a voice coil, the link portion having a rigidity that changes an angle in accordance with the vibration of the voice coil, and the link portion so that the angle of the link portion can be changed. A joint portion provided at an end of the joint portion, wherein the link portion and the joint portion are composed of a plurality of fibers and a resin that restrains the fibers, and the orientation of the fibers depends on the refraction or rotation axis of the joint portion. A vibration system movable member for a speaker, characterized by being along a transverse direction.

  A diaphragm, a voice coil, a stationary part that supports the diaphragm and the voice coil, a drive unit that drives the voice coil, and a vibration direction that changes the direction of vibration of the voice coil and vibrates the diaphragm. A conversion unit; and a holding unit that holds the voice coil in the stationary unit while restricting vibration of the voice coil in a uniaxial direction. The vibration direction conversion unit and the holding unit are accompanied by vibration of the voice coil. A rigid link part for changing the angle and a joint part provided at an end part of the link part so as to enable an angle change of the link part, wherein the link part and the joint part include a plurality of fibers and the joint part. A speaker device, wherein the speaker device is formed of a resin constraining fibers, and the orientation of the fibers is along a direction transverse to a refraction or rotation axis of the joint.

It is explanatory drawing which showed the conventional speaker apparatus. It is explanatory drawing which showed the vibration system movable member for speakers which concerns on embodiment of this invention (the figure (a) is a general view, the figure (b) is the A section enlarged view). It is explanatory drawing which showed the vibration system movable member for speakers which concerns on embodiment of this invention (the figure (a) is a general view, the figure (b) is the A section enlarged view). BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing (the figure (a) is a top view, the figure (b) is a side view) which planarly showed the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the other example of the vibration system movable member for speakers which concerns on embodiment of this invention. Explanatory drawing which showed the speaker apparatus using the vibration system movable member for speakers which concerns on embodiment of this invention (the figure (a) is sectional drawing along the X-axis direction, the figure (b) shows operation | movement of a drive part. It is explanatory drawing shown). It is explanatory drawing which shows a specific vibration direction conversion part. It is explanatory drawing which shows a specific vibration direction conversion part. It is explanatory drawing which shows the other example of a vibration direction conversion part. It is explanatory drawing explaining the formation method of a vibration direction conversion part. It is explanatory drawing which shows the other example of a vibration direction conversion part. It is explanatory drawing which showed the other form example of the vibration direction conversion part. 1 is an external perspective view of a speaker device according to an embodiment of the present invention. It is a perspective view which shows the internal structure (state except the 1st structural member) of the speaker apparatus. It is the perspective view which showed the internal structure (state which excluded the 2nd structural member) of the speaker apparatus. It is explanatory drawing which showed the structure of the cover part of the cabinet with which a speaker apparatus is provided. It is explanatory drawing (sectional drawing) which showed the other form of the speaker apparatus. It is explanatory drawing (sectional drawing) which showed the other form of the speaker apparatus. It is explanatory drawing which showed the speaker apparatus of other form of this invention. It is explanatory drawing which showed the passive type vibration body (passive radiator) used for a phase inversion type | mold speaker (the figure (a) is a top view, the figure (b) is AA sectional drawing in the figure (a), (C) is an explanatory diagram of the internal structure). It is explanatory drawing which showed the other form of the vibrating body for speakers. It is explanatory drawing which showed the speaker apparatus provided with the speaker unit and the passive-type diaphragm. It is explanatory drawing which showed the example of application of the speaker apparatus which concerns on embodiment of this invention. It is explanatory drawing which showed the example of application of the speaker apparatus which concerns on embodiment of this invention. It is explanatory drawing (sectional drawing) which showed an example of the speaker unit for middle-high range reproduction | regeneration used for the Example shown in FIG.23 and FIG.24. It is explanatory drawing which showed the other structural example of the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the other structural example of the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the other structural example of the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the other structural example of the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the other structural example of the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the other structural example of the vibration system movable member for speakers which concerns on embodiment of this invention. It is explanatory drawing which showed the electronic device provided with the speaker apparatus which concerns on embodiment of this invention. It is explanatory drawing which showed the motor vehicle provided with the speaker which concerns on embodiment of this invention.

  Hereinafter, a speaker vibration system movable member and a speaker device according to an embodiment of the present invention will be described with reference to the drawings. First, FIG.2 and FIG.3 is explanatory drawing which showed the vibration system movable member for speakers which concerns on embodiment of this invention.

  2 and 3, the speaker vibration system movable member A1 (A1a, A1b) is operable with the vibration of the voice coil A2, and has a rigid link portion that changes its angle with the vibration of the voice coil A2. A joint portion A4 provided at the end of the link portion A3 is provided so that the angle between the A3 and the link portion A3 can be changed. Link part A3 and joint part A4 are comprised by resin A6 which restrains the some fiber A5 and fiber A5. The orientation of the fiber A5 is along the direction of refraction of the joint part A4 or the rotation axis P. Hereinafter, the term “refraction” simply includes the concept of bending, and the term “refraction” simply includes the concept of refraction.

FIG. 2 (a) is an overall configuration diagram of the speaker vibration system movable member A1 (A1a), and FIG. 2 (b) is an enlarged view of portion A in FIG. 2 (a). A1 (A1a) includes a vibration direction converter A7 that converts the vibration of the voice coil A2 in different directions to vibrate the diaphragm. A voice coil A2 is connected to one end side of the speaker vibration system movable member A1 (A1a), and a diaphragm A8 is connected to the other end side of the speaker vibration system movable member A1 (A1a). When the voice coil A2 vibrates in the direction of arrow a, the angles θ ₁ and θ ₂ formed by the link part A3 and the connecting part A9 in the speaker vibration system movable member A1a forming the vibration direction conversion part A7 change. The angle of the link part A3 is changed in the direction of the arrow b, and the vibration plate A8 connected to the other end of the speaker vibration system movable member A1a vibrates in the direction of the arrow c along with the change in angle.

  By using the speaker vibration system movable member A1a provided with such a vibration direction converter A7, the vibration direction of the voice coil A2 and the vibration direction of the diaphragm A8 can be made different, and the vibration of the voice coil A2 is vibrated. It does not directly affect the thickness of the speaker device along the vibration direction of the plate A8. As a result, the speaker can be thinned even in a speaker device that obtains a large output by increasing the amplitude of the voice coil A2.

  In the example shown in FIG. 2, the speaker vibration system movable member A1a (vibration direction conversion portion A7) is connected to the vibration plate A8 directly or via another member (a vibration plate side connection portion A9a). A connection part A9 (voice coil side connection part A9b) connected to the voice coil A2 directly or via another member, one end connected to the diaphragm side connection part A9a via a joint part A4, and the other end Includes a link part A3 connected to the voice coil side connection part A9b via a joint part A4. And link part A3, joint part A4, and connection part A9 are formed with resin A6 which restrains some fiber A5 and fiber A5.

  The joint portion A4 is a thin portion having a predetermined width w formed between the inclined surface A3t at the end portion of the link portion A3 and the inclined surface A9t at the end portion of the connecting portion A9, and mainly the link portion A3. And a connection part A9. According to this, sufficient rigidity is given to link part A3 and connecting part A9 by resin A6 containing fiber A5, and joint part A4 can be smoothly refracted or bent by the flexibility of fiber A5. . Further, the joint A4 can obtain sufficient durability against repeated refraction or bending due to the flexibility of the fiber A5. Examples of the member (other member described above) that interposes the connecting portion A9 and the diaphragm A8 or the voice coil A2 include an adhesive resin and a double-sided tape.

  3 (a) is an overall configuration diagram of the speaker vibration system movable member A1 (A1b), and FIG. 3 (b) is an enlarged view of portion B in FIG. 3 (a). A1 (A1b) is a holding portion A10 that holds the voice coil A2 while restricting the vibration of the voice coil A2 in a uniaxial direction. The left and right side edges of the voice coil A2 are connected to the pair of speaker vibration system movable members A1 (A1b). The left and right edges are two side edges arranged on both sides with respect to the axis along the vibration direction of the voice coil A2. This side edge may be the side edge of the voice coil 2 itself, or may be the side edge of a member (voice coil support portion A2a) that supports the voice coil 2.

  When the voice coil A2 vibrates in the direction of arrow a, the angle of the link portion A3 (A3a, A3b) in the speaker vibration system movable member A1b that forms the holding portion A10 is changed, and the voice coil A2 moves while moving along with the vibration of the voice coil A2. A2 is held in the stationary part A11. The link portions (A3a, A3b) have a thickness (rigidity) in a direction crossing the vibration direction of the voice coil A2, in other words, a direction passing through the formation surface of the voice coil A2, and the thickness (rigidity) The vibration of the voice coil A2 is restricted in the uniaxial direction.

  By using the speaker vibration system movable member A1b including such a holding portion A10, it is possible to cause the voice coil to smoothly vibrate while accurately regulating the vibration direction of the voice coil A2.

  In the example shown in FIG. 3, the speaker vibration system movable member A1b (holding portion 10) includes a voice coil A2 side link portion A3a connected to the voice coil A2 directly or via another member, and the voice coil A2. A stationary portion side link portion A3b that is connected to the stationary portion A11 to be held directly or via another member. Further, a joint part A4 is arranged between the link part A3a on the voice coil side and the link part A3b on the stationary part A11 side.

  The pair of link portions A3 (A3a, A3b) and the joint portion A4 are formed of a plurality of fibers A5 and a resin A6 that restrains the fibers A5. The joint portion A4 is a thin portion having a predetermined width w formed between the inclined surfaces A3t and A3t at the ends of the pair of link portions A3, and is mainly between the pair of link portions A3 (A3a and A3b). Is formed by a fiber A5 crossing. According to this, sufficient rigidity is given to link part A3 (A3a, A3b) by resin A6 containing fiber A5, and joint part A4 can be smoothly refracted or bent by the flexibility of fiber A5. Become. Further, the joint A4 can obtain sufficient durability against repeated refraction or bending due to the flexibility of the fiber A5.

  As shown in FIG. 3B, an inclined surface A3t provided in the link portion A3 is formed in the vicinity of the joint portion A4. The angle A formed by the inclined surface A3t and the direction in which the link portion A3 extends is that the adjacent two link portions A3 and A3 are prevented from contacting when the joint portion A4 is bent or refracted. It is preferable to set to a predetermined angle. In particular, when the vibration plate A8 is vibrated with a relatively large amplitude, the joint portion A4 is bent or refracted relatively large. In this case, it is preferable to set the angle A to be relatively small. On the other hand, when vibrating the diaphragm A8 with a relatively small amplitude, the joint A4 is bent or refracted relatively small. In this case, the angle A may be a relatively large angle. The inclined surface A3t only needs to be inclined. Therefore, the present invention is not limited to the illustrated example, and an inclined surface A3t having a convex, concave, or stepped cross-sectional shape may be provided in order to increase the rigidity of a part of the link portion A3 in the vicinity of the joint portion A4. Absent.

  FIGS. 4A and 4B are explanatory views showing the vibration system movable member for a speaker in plan (FIG. 4A is a plan view and FIG. 4B is a side view). The speaker vibration system movable member A1 can be formed into a plate-like member having a predetermined width, length, and thickness, and is obtained by molding the resin A6 in which the fiber A5 is dispersed into the plate shape. be able to. The fiber A5 is preferably a fiber having high flexibility and high tensile strength. Examples of the fiber A5 include aramid fibers, wood pulp, non-wood pulp, synthetic fibers, meta-type wholly aromatic polyamide fibers, para-aramid fibers, etc. These various materials can be used. Further, in order to adjust physical properties such as bending stress and rigidity of the joint portion A4, a dumping agent (damping agent, braking material) may be applied (applied).

  By traversing the fiber A5 so as to straddle the joint A4, the strength of the joint A4 can be ensured. In terms of obtaining the strength of the joint portion A4, the length of the fiber A5 is preferably substantially the same or larger than the width W1 of the joint portion A4 in the direction of orientation. The joint portion A4 preferably has a relatively large durability associated with bending or refraction. Further, the joint part A4 has bending resistance and tensile strength (breaking strength), in particular, tensile strength in the refraction direction of the joint part or a direction crossing the rotation axis, elastic force, or deformation resistance (rigidity) against deformation of the joint part A4. ) In a well-balanced manner. In the illustrated example, the width W1 of the joint part A4 is smaller than the length in the longitudinal direction L of the link part A3, and the thickness T1 of the joint part A4 is smaller than the thickness T0 of the link part A3. Further, the width W1 of the joint part A4 is smaller than the thickness T0 of the link part A3.

  The joint part A4 is formed in a linear shape, and the link part A3 has rigidity with respect to a bend M around at least the direction along the joint part A4. It is preferable that the bending rigidity of the link portion A3 is substantially larger than the bending rigidity of the comparative link portion formed substantially only by the resin A6. That is, you may raise the bending rigidity of link part A3 by disperse | distributing fiber A5 in resin A6.

  The speaker vibration system movable member A1 may have a larger internal loss than the comparative speaker vibration system movable member formed only by the resin A5 by dispersing the fiber A5 in the resin A6. . In particular, the internal loss of the link portion A3 may be larger than the internal loss of the comparative link portion formed only with the resin A5. That is, by dispersing the fiber A5 in the resin A6, it is possible to increase the internal loss of the speaker vibration system movable member A1. By increasing the internal loss of the speaker vibration system movable member A1, for example, it is possible to prevent unnecessary vibration from propagating from the voice coil A2 to the diaphragm, or to generate unnecessary vibration in the speaker vibration system movable member A1. it can. Moreover, the resonance peak can be suppressed in terms of acoustic characteristics, and abnormal noise during operation can be suppressed.

  The speaker vibration system movable member A1 can increase the Young's modulus relative to the comparative speaker vibration system movable member formed of only the resin A5 by dispersing the fiber A5 in the resin A6. In particular, the Young's modulus of the link portion A3 may be larger than the Young's modulus of the comparative link portion formed only with the resin A5. That is, the Young's modulus of the speaker vibration system movable member A1 can be increased by dispersing the fiber A5 in the resin A6. By increasing the Young's modulus of the speaker vibration system movable member A1, the vibration of the voice coil A2 can be transmitted to the diaphragm with good responsiveness.

  As a form of joint part A4, it can comprise with the nonwoven fabric comprised with fiber A5. Further, the fiber A5 is shorter than the length L in the longitudinal direction of the link portion A3.

  Further, by making the thickness of the joint portion A4 substantially the same as the thickness of the fiber A5 or the nonwoven fabric, the joint portion A4 can be substantially composed of only the fiber A5 or the nonwoven fabric. By configuring the joint portion A4 substantially only with the fiber A5 or the nonwoven fabric, durability against bending or refraction motion can be improved, and the reliability of the speaker vibration system movable member A1 can be improved.

  FIG. 5 is an explanatory view showing another example of the speaker vibration system movable member according to the embodiment of the present invention. This speaker vibration system movable member A1c shows a more specific form example of the speaker vibration system movable member A1b provided with the holding portion A10 described above.

  The speaker vibration system movable member A1c includes a frame portion A12 that supports a plurality of holding portions A10. Since the frame part A12 is attached to a stationary part A11 such as a frame, the frame part A12 substantially functions as the stationary part A11.

  A plurality of holding portions A10 are arranged in the frame portion A12 along the vibration direction of the voice coil A2. Further, a voice coil support portion A2a that supports the voice coil A2 is disposed between the plurality of holding portions A10 that are arranged side by side, and the holding portion A10 and the voice coil support portion A2a are connected via a joint portion A4. . Then, the angle formed by the voice coil side link portion A3a and the stationary portion side link portion A3b changes due to the vibration of the voice coil A2, and the vibration system movable member A1c for the speaker regulates the vibration of the voice coil A2 in a uniaxial direction. Meanwhile, the voice coil A2 is supported so as to freely vibrate.

  The link part A3b on the stationary part side is connected to the stationary part A11 via the joint part A4. The frame part A12 includes a bridging part A13 that supports the holding part A10. The bridging part A13 extends along the direction passing through the formation surface of the joint part A4, and the bridging part A13, the stationary part A11, and the bridging part A13. The joint part A4 is arranged between the holding part A10. The frame part A12 and the bridging part A13 have rigidity. Moreover, frame part A12 and holding | maintenance part A10 can be comprised with the substantially same material. That is, integral molding with a resin material containing the fiber A5 is possible.

  6A and 6B are explanatory views showing a speaker device using the above-described speaker vibration system movable member (FIG. 6A is a cross-sectional view along the X-axis direction, and FIG. 6B shows the operation of the drive unit). Is an explanatory diagram). The speaker device 1U includes a vibration plate 10, a stationary portion 100 that supports the vibration plate 10 so as to freely vibrate along a vibration direction, and a driving portion 14 that is provided in the stationary portion 100 and that vibrates the vibration plate 10 with an audio signal. The drive unit 14 includes a magnetic circuit 20 that forms a magnetic gap 20G, a voice coil 30 that receives an audio signal and vibrates in a direction different from the vibration direction of the diaphragm 10, and the direction of vibration of the voice coil 30. A vibration direction conversion unit 50 that converts and transmits the vibration to the diaphragm 10 is provided. In the drawing, the voice coil 30 is supported by the voice coil support unit 40, but the voice coil 30 itself may be connected to the vibration direction conversion unit 50. Here, the vibration direction of the voice coil 30 is defined as the X-axis direction, and the two directions orthogonal thereto are defined as the Y-axis direction and the Z-axis direction, respectively.

  The diaphragm 10 may have a substantially rectangular shape in plan view, or may have a circular shape, an elliptical shape, or other shapes. Moreover, the cross-sectional shape of the diaphragm 10 can be formed in a predetermined shape such as a flat plate shape, a dome shape, or a cone shape, for example. In the illustrated example, the cross-sectional shape of the diaphragm 10 is a plane, but may be a curved shape. Moreover, if necessary, the overall height of the diaphragm 10 may be made relatively small, and the speaker device 1U may be thinned.

  The stationary part 100 is a general term for parts that support vibrations such as the diaphragm 10 and the driving part 14. Here, the frame 12 and the like correspond to the stationary part 100. The stationary part 100 is not intended to be completely stationary per se, but is entirely oscillated under the influence of the vibration of the driving part 14 or other force. Also good. The outer peripheral portion of the diaphragm 10 is supported by a frame 12 that is a stationary portion 100 via an edge 11.

  The drive unit 14 includes a magnetic circuit 20, a voice coil 30, and a vibration direction conversion unit 50. The voice coil 30 vibrates in a uniaxial direction along the magnetic gap 20G of the magnetic circuit 20, and the vibration is converted into a vibration direction conversion unit. 50 changes its direction and transmits it to the diaphragm 10. In the illustrated example, the voice coil 30 vibrates along the X-axis direction, and the diaphragm 10 is arranged so as to vibrate in the Z-axis direction perpendicular to the X-axis direction. The diaphragm 10 is vibrated in the Z-axis direction by converting the vibration in the direction into a changing oblique angle.

  The magnetic circuit 20 includes a magnet 21 (21A, 21B) and a magnetic pole member (yoke part) 22 (22A, 22B) so that a plurality of magnetic gaps 20G are arranged along the vibration direction (for example, the X-axis direction) of the voice coil 30. It has. Here, the magnetic pole directions of the magnets 21 (21A, 21B) are set so that the magnetic field directions of the pair of magnetic gaps 20G are opposite to each other (± Z-axis direction), and the magnetic gaps having magnetic fields in the opposite directions. By arranging the voice coil 30 around which the conductive member is wound so that currents in opposite directions (± Y-axis direction) flow with respect to 20G, a direction along the magnetic gap 20G (± X-axis) is arranged in the voice coil 30. Direction) driving force (Lorentz force, electromagnetic force). The arrangement relationship between the magnet 21 and the magnetic pole member (yoke part) 22 is not limited to the illustrated example. By forming the voice coil support portion 40 with, for example, a flat insulating member, rigidity (including bending rigidity and torsional rigidity) can be added to the entire voice coil 30.

  The voice coil 30 is formed by winding a conducting wire (conductive member) to which an audio signal is input, and is itself arranged so as to be able to vibrate on the stationary part 100 or the stationary part 100 via the voice coil support part 40. Is arranged so as to freely vibrate. The voice coil support portion 40 can be formed of, for example, a flat insulating member, and the voice coil 30 is supported on the surface or inside thereof. By forming the voice coil support portion 40 with, for example, a flat insulating member, rigidity (including bending rigidity and torsional rigidity) can be added to the entire voice coil 30.

  Although not shown, the voice coil 30 is held on the stationary part 100 by the holding part A10 described above. The holding unit A10 holds the voice coil 30 or the voice coil support unit 40 with respect to the stationary unit 100 so that the voice coil 30 or the voice coil support unit 40 can vibrate along the vibration direction (for example, the X-axis direction), and restricts the movement so It has a configuration. The voice coil 30 has a relatively large driving force when driving the speaker by relatively increasing the length of the voice coil in the direction orthogonal to the vibration direction of the voice coil 30 relative to the length of the voice coil 30 in the vibration direction. Can be obtained.

  The vibration direction conversion unit 50 shows a specific configuration of the vibration direction conversion unit A7 described above. The vibration direction conversion section 50 has one end connected directly to the voice coil 30 via an angle changeable direct or other member, and the other end connected directly to the diaphragm 10 or an angle changeable other member. And is arranged obliquely with respect to each of the vibration direction of the diaphragm 10 and the vibration direction of the voice coil 30. That is, the vibration direction conversion unit 50 includes rigid link portions 51A and 51B that are obliquely provided so that the angle can be changed between the voice coil 30 or the voice coil support unit 40 and the diaphragm 10, and both ends of the link portions 51A and 51B. And the joint portions 52A, 52B, 52C, and 52D that serve as fulcrums for the angle change of the vibration direction converting portion 50 are provided. The connecting portions 53A, 53B, and 53C of the vibration direction converting portion 50 are attached to the vibration member 10 or the voice coil 30, or the attached member 200 including other members than the vibration plate 10 and the voice coil 30, or the stationary portion 100. For example, it is connected by a connecting member such as an adhesive as a joining member, a double-sided tape, or a screw as a fastening member, and the joint portion 52B is disposed so as to be close to the attached member 200. In the illustrated example, the connecting portion 53A at one end of the vibration direction converting portion 50 is connected to the voice coil 30 or the voice coil support portion 40 via the connecting portion (connecting spacer) 60. However, the connecting portion (connecting spacer) 60 is used. You may connect directly, without going through. The connecting portion (connecting spacer) 60 is formed between the end on the voice coil side in the vibration direction converting portion 50 and the end on the vibration direction changing portion side of the voice coil 30 or the voice coil support portion 40, and both end portions. Are connected at intervals along the vibration direction. Further, the connecting portion (connecting spacer) 60 absorbs the thickness of the magnetic circuit 20 to reduce the thickness of the speaker device.

  Furthermore, a contact avoidance portion (concave portion 72) that avoids contact with the joint portion 52B is formed on the surface side of the attached member 200 close to the joint portion 52B of the vibration direction conversion portion 50. The contact avoiding portion (concave portion 72) also functions as a joining member accommodating portion (constraining portion) that accommodates and restrains the joining member that joins the vibration direction changing portion 50 and the attached member 200. The contact avoiding portion (concave portion 72) is formed in a concave shape along the joint portion 52B, for example, a concave portion, a notch portion, a groove portion, or the like, and the joint portion 52B and a member to be attached disposed in the vicinity of the joint portion 52B. A predetermined space is formed between the surface of 200 and the adhesive member interposed between the vibration direction changing portion 50 and the attached member 200 is prevented from being involved in the joint portion 52B. Further, in the illustrated example, a notch portion 71 is formed as a contact avoidance portion in the connection portion (connection spacer) 60 serving as a member to be attached so as to be close to the joint portion 52A. Accordingly, when the connecting portions 53A, 53B, 53C of the vibration direction changing portion 50 and the end portions of the connecting portion (connecting spacer) 60 or the diaphragm 10 are bonded together with a bonding member such as an adhesive or a double-sided tape, The ends of the adhesive and double-sided tape that protrude toward 52A and 52B enter the notch 71 or the recess 72, so that they do not contact and adhere to the joints 52A and 52B.

  As shown in FIG. 6A, such a speaker device 1U inputs a voice signal SS as an electrical signal to the voice coil 30 of the drive unit 14 as shown in FIG. The voice coil 30 or the voice coil support portion 40 vibrates in the X-axis direction shown in the figure along the magnetic gap 20G of the circuit 20, for example. As a result, the vibration is changed in direction by the vibration direction converter 50 and transmitted to the diaphragm 10, and the diaphragm 10 is vibrated in, for example, the Z-axis direction shown in FIG. A corresponding sound is emitted.

  According to such a speaker device 1U, since the vibration direction of the voice coil 30 is different from the vibration direction of the diaphragm 10 by the vibration direction converter 50, the voice coil 30 is moved along the vibration direction of the diaphragm 10. Compared to the case of vibrating, the back side of the diaphragm 10 can be made thinner. As a result, a thin speaker device capable of reproducing the low sound range with high sound pressure can be obtained.

  Further, since the vibration of the voice coil 30 is redirected by the vibration direction converter 50 and transmitted to the diaphragm 10, the speaker device 1U can be increased even if the amplitude of the diaphragm 10 is increased by increasing the amplitude of the voice coil 30. The thickness in the acoustic radiation direction (the overall height of the speaker device) does not increase. This makes it possible to obtain a thin speaker device that can emit a large volume of reproduced sound.

  Further, when connecting the connecting portions 53A and 53B of the vibration direction changing portion 50 and the attached member using an adhesive as a joining member, the adhesive diffuses and extends along with the joining, and the joint portions 52A and 52B are connected. If the adhesive protrudes and adheres to the joint parts 52A and 52B, the joint parts 52A and 52B may be hardened and cannot move. In addition, when a double-sided tape is used as a joining member, the end of the double-sided tape protrudes toward the joints 52A and 52B, and the joints 52A and 52B are cured when the double-sided tape adheres to the joints 52A and 52B. May become inoperable. Furthermore, the joint portions 52A and 52B to which the adhesive agent or the end portion of the double-sided tape adheres and harden may be broken due to repeated bending, refraction, or rotational movement. When the joint portions 52A and 52B are broken in this manner, the portion where the adhesive or the end of the double-sided tape is attached contacts or leaves the attached member 200 such as the diaphragm 10, the voice coil 30, or other members. Repeatedly, an unusual sound (sound hit) is generated each time.

  On the other hand, if the application amount of the adhesive or the bonding area by the double-sided tape is reduced so that the adhesive or the end of the double-sided tape does not stick out and adhere to the joints 52A and 52B, the vibration direction changing unit 50 and the attached member 200 are reduced. The connection force is reduced, and peeling occurs from the end face to cause an abnormal sound, or the sound is completely peeled off, resulting in the destruction of the speaker. Further, since the joint portions 52A and 52B are disposed in the vicinity of the attached member, the joint portions 52A and 52B come into contact with the attached member, and the joint portions 52A and 52B are damaged, or the vibration direction converting portion 50 May be unable to bend, refract, or rotate with respect to the mounted member.

  However, in this speaker device 1U, since the contact avoidance portion (recessed portion 72) is formed on the surface side of the mounted member close to the joint portions 52A and 52B, the contact with the joint members 52A and 52B is suppressed, Generation of abnormal noise due to contact can be suppressed. In addition, even if a bonding member such as an adhesive or a double-sided tape used to connect the connecting portions 53A and 53B of the vibration direction changing portion 50 and the attached member protrudes, the contact avoidance functioning as a bonding member restraining portion. It is possible to prevent the movement of the joint portions 52A and 52B from entering the portion (concave portion 72) and adhering to the joint portions 52A and 52B. Accordingly, the functions of the joint portions 52A and 52B can be maintained while maintaining a high coupling force between the vibration direction conversion portion 50 and the attached member. Since the vibration direction changing portion 50 reliably bends, refracts, or rotates with respect to the attached member, contact of the joint portions 52A and 52B with the attached member due to breakage, generation of abnormal noise, and the like can be suppressed.

  The vibration direction converter 50 is formed by a link mechanism 50L including a rigid first link 51A and a second link 51B. The first link portion 51A has a first connecting portion 53A formed on one end side via a joint portion 52A, and a second connecting portion 53B formed on the other end side via a joint portion 52B. The second link portion 51B is formed with an intermediate portion of the first link portion 51A via a joint portion 52C on one end side, and does not move against vibration of the voice coil support portion 40 via a joint portion 52D on the other end side. The connecting portion 53C is formed.

  In the illustrated example, the first connecting portion 53A is connected to the end of the voice coil support portion 40 via the connecting portion (connecting spacer) 60 or directly, and the second connecting portion 53B is directly connected to the diaphragm 10. The connected and non-moving connecting portion 53C is connected to the bottom portion 12A of the frame 12 serving as the stationary portion 100. By forming a recess or notch 73 as a contact avoiding part 70 in the bottom part 12A of the frame 12 of the attached member 200 arranged close to the joint part 52D, a notch part in the illustrated example, A space is formed between the frame 12 and the bottom 12A. The first link portion 51 </ b> A and the second link portion 51 </ b> B are disposed to be inclined in different directions with respect to the vibration direction (X-axis direction) of the voice coil support portion 40, and the stationary portion 100 is relative to the vibration direction conversion portion 50. It is provided on the side opposite to the diaphragm 10 side. In the illustrated example, the stationary portion 100 is formed by the bottom portion 12A of the frame 12, but instead, the yoke portion 22A of the magnetic circuit 20 extends below the vibration direction changing portion 50, and the yoke portion 22A is The stationary part 100 may be used.

  The drive unit 14 includes drive units 14 (R) and 14 (L) arranged symmetrically opposite to each other, and each of the drive units 14 (R) and 14 (L) includes a voice coil support unit 40 (R), 40 (L), magnetic circuits 20 (R) and 20 (L), and connecting portions (connecting spacers) 60 (R) and 60 (L) are provided.

  In the link mechanism 50L, a pair of first link portions 51A, a pair of second link portions 51B, a pair of first connection portions 53A, a second connection portion 53B, and a non-moving connection portion 53C that are arranged to be opposed to each other are integrated. Thus, the vibration direction changing part 50 is formed. The pair of first connection parts 53A are connected to the voice coil support part 40, the second connection part 53B is connected to the diaphragm 10, and the stationary connection part 53C is connected to the bottom part 12A of the frame 12.

  According to this, as shown in FIG. 5B, the two drive units 14 (R), 40 (R), 40 (L) are reversed by synchronizing the vibration directions of the voice coil support units 40 (R), 40 (L). The diaphragm 10 can be vibrated by combining the driving force of 14 (L). Further, since the joint portion 52B on the diaphragm 10 side can be provided at a plurality of locations, the support points of the diaphragm 10 are increased, and the vibration phase of the diaphragm 10 can be matched.

  When the angle θ1 formed by the drive unit 14 and the vibration direction conversion unit 50 is large and the angle θ2 formed by the diaphragm 10 and the vibration direction conversion unit is small, the amplitude of the voice coil 30 included in the drive unit 14 is relatively small. Even in this case, the diaphragm 10 can be vibrated with a relatively large amplitude. Therefore, when the driving force of the driving unit 14 is relatively large, when the amplitude of the driving unit 14 (a piezoelectric element or a magnetostrictive element other than the magnetic circuit 20) is relatively small, or the stress acting on the diaphragm 10 during vibration is compared. If it is small, it is preferable. When the angle θ1 formed by the drive unit 14 and the vibration direction conversion unit 50 is small and the angle θ2 formed by the diaphragm 10 and the vibration direction conversion unit is large, the amplitude of the voice coil 30 included in the drive unit 14 is compared. However, the amplitude of the diaphragm 10 is small, and the diaphragm 10 can be vibrated with a relatively large driving force. Therefore, it is suitable when a relatively large acoustic load (for example, a cabinet having a relatively small volume) is applied to the diaphragm 10.

  FIGS. 7 and 8 are explanatory views showing more specific vibration direction converting portions (FIG. 7A is a perspective view, FIG. 7B is an enlarged view of portion A in FIG. 7A, and FIG. FIG. 8A is a plan view of a state in which the joint portion is extended and the whole is flattened, and FIG. 8B is a side view of the state in which the joint portion is extended and the whole is flattened. In this example, the vibration direction changing part 50 is formed by one integrated part, and as described above, the pair of first link parts 51A and the joint parts 52A and 52B are formed at both ends thereof, respectively, Two link portions 51B and joint portions 52C and 52D are formed at both ends thereof. Further, a first connecting portion 53A is formed on one end side of the pair of first link portions 51A via the joint portion 52A, and the joint portions 52B formed on the other end side of the pair of first link portions 51A. A second connecting portion 53B is formed, and a stationary connecting portion 53C is formed between the joint portions 52D formed on the other end side of the second link portion 51B. The first link portions 51A and 51A and the second connection portion 53B are refracted in a convex shape, and the second link portions 51B and 51B and the stationary connection portion 53C are refracted in a concave shape.

  As shown in FIG. 7B, the joint portion 52A is formed to be refractable by the continuous member 50P formed of the resin A6 including the fiber A5 as described above, and the rigid member 50Q is provided to the first link portion 51A. Is attached, and the rigid member 50Q is also attached to the first connecting portion 53A. And all the joint parts mentioned above are formed in the same composition. In each joint portion, inclined surfaces 51t and 53t are formed to face each other.

  As shown in FIG. 8 (a), the vibration direction changing portion 50 including the link portions 51A and 51B, the joint portions, and the connecting portions 53A, 53B, and 53C is formed from an integral sheet-like component. The joint portion 52A is formed so as to linearly cross the integral sheet-like component, and the joint portions 52B, 52C, 52D are formed so as to partially traverse the integral sheet-like component. Further, the second link portions 51B and 51B and the non-moving connection portion 53C are cut out and formed by forming a pair of cutout portions 50S along the longitudinal direction of the integral sheet-like component.

  As shown in FIG. 8B, in order to form such a vibration direction changing portion 50, for example, a resin material for forming the rigid member 50Q is applied to the entire surface of the continuous member 50P that is a sheet-like member. In order to form each joint part and inclined surfaces 51t and 53t on both sides thereof, V-shaped die cutting is performed. Thereafter, the above-described notch 50S is formed, and the resin material is cured. As the resin material used here, a liquid uncured resin material or a resin film can be used.

  Moreover, when forming each joint part and the inclined surfaces 51t and 53t of the both sides, you may shape | mold simultaneously with forming the rigid member 50Q with a resin material. At this time, it is preferable that a groove or a recess having a V-shaped cross section is formed in advance in a mold for molding the rigid member 50Q.

  9 and 10 are explanatory views showing another example of the vibration direction converter 50 (FIG. 9A is a side view, FIG. 9B is a perspective view, and FIGS. 10A to 10C). Is an explanatory diagram of a formation example). This vibration direction conversion unit 50 (link mechanism 50L) is a case where a pair of drive units is provided and the vibration direction conversion units 50 are arranged opposite to each other substantially symmetrically, and a plurality of link parts form parallel links. Yes.

  The vibration direction conversion part 50 has one end as a joint part 52A (R), 52A (L) with the first connection part 53A (R), 53A (L) and the other end as a joint with the second connection part 53B. It has a pair of first link parts 51A (R) and 51A (L) as parts 52B (R) and 52B (L). Also, one end is a joint part 52C (R), 52C (L) with the middle part of the first link parts 51A (R), 51A (L), and the other end is a joint part 52D ( R) and 52D (L) have a pair of second link portions 51B (R) and 51B (L). As described above, the first connecting portion 53A is connected to the voice coil 30 or the voice coil support portion 40 directly or via the connecting portion 60 as another member, and the second connecting portion 53B is connected to the diaphragm 10. The stationary connection portion 53 </ b> C is connected to the bottom portion 12 </ b> A of the frame 12 that becomes the stationary portion 100, the yoke portion 22 that forms the magnetic circuit 20, and the like.

  Further, joint portions 52E (R) and 52E () with a pair of connection portions 53D (R) and 53D (L) whose one ends extend integrally from the first connection portions 53A (R) and 53A (L). L) and the other end of the third link portion 51C (R), (L) is the joint portion 52F (R), 52F (L) with the second connection portion 53B and the connection portion 53E integral with the second connection portion 53B. Have.

  The first link unit 51A (R), the third link unit 51C (R), the first link unit 51A (L), the third link unit 51C (L), and the second link unit 51B (R ) And the third link portion 51C (L), the second link portion 51B (L) and the third link portion 51C (R) form a parallel link.

  In the illustrated example, the second connecting portion 53B disposed in the vicinity of the joint portions 52F (R) and 52F (L) and the pair disposed in the vicinity of the joint portions 52A (R) and 52A (L). In the connecting portions 53D (R) and 53D (L), a recess 76 is formed as the contact avoiding portion 70 so that a space is formed between each joint portion and the connecting portion.

  As shown in FIG. 9B, the vibration direction converting unit 50 includes the connecting portions 53B, 53D (R), (L), and the third link portions 51C (R), (L) in parallel with each other in the width direction. The first link portions 51A (R), (L) are formed in a bifurcated manner, and the joint portions 52C (R) with the second link portions 51B (R), (L) are formed in the middle portion thereof. (L) is formed, and the second link portions 51B (R), (L) and the connecting portion 53C are connected in parallel in a pair in the width direction 53B, 53D (R), (L), third. Between the link portions 51C (R) and (L).

  By forming the link portion with a single sheet-like (plate-like) component in this way, the diaphragm 10 can be supported and vibrated by the surface, so that the entire diaphragm 10 can be vibrated substantially in phase. It is possible to suppress divided vibration.

  Further, as shown in FIG. 9B, the vibration direction conversion unit 50 of this embodiment refracts the entire plate-like member forming the link part into a convex trapezoidal shape, and thus the first link part 51A (R). , (L) and the second connecting portion 53B are formed, and the plate-like member is partially cut out and refracted into a concave shape so as to be fixed to the second link portions 51B (R), (L). 53C is formed.

  With reference to FIG. 10, a method of forming such a vibration direction converter 50 will be described. As one forming method, as shown in FIG. 10A, the vibration direction conversion unit 50 is formed by bonding a plurality of (two) sheet-like (plate-like) parts 501, 502, In the sheet-like component 501, the first connecting portions 53A (R), (L), the first link portions 51A (R), (L), the second link portions 51B (R), (L), second The connecting portion 53B and the stationary connecting portion 53C are formed, and the connecting portion 53D, the third link portions 51C (R) and (L), and the connecting portion 53E are formed on the other sheet-like component 502. Then, the connecting portions 53D (R), (L) and the third link portions 51C (R), (L) are connected along the first link portions 51A (R), (L) and the second connecting portion 53B. The sheet-like component 502 is formed with an opening 502A corresponding to the second link portions 51B (R) and (L) and the stationary connection portion 53C.

  In this example, the size of the opening 502A formed in the other sheet-like component 502 corresponding to the second link portions 51B (R), (L) and the stationary connecting portion 53C in one sheet-like component 501 is as follows. The other sheet-like component 502 is formed so as to expand from one end to the inside. By doing so, the second link portions 51B (R), (L) and the immovable connecting portion 53C are prevented from coming into contact with other sheet-like components 502, and the link mechanism moves smoothly. Can be made. The sheet-like components 501 and 502 are connected as shown in FIG. A recess or notch 76 is formed as a contact avoidance portion 70 at a location close to the joint portion 52.

  In addition, an inclined surface is formed at the end of each link portion in the vicinity of each joint portion. The inclined surfaces are formed so as not to interfere with each other when the link portion is refracted at the joint portion, so that the link portion can be efficiently refracted at the joint portion.

  As another example of formation, as shown in FIG. 10C, the above-described sheet-like component 502 is formed integrally with the end of the above-mentioned sheet-like component 501, and the folding line f is formed in the direction of the arrow. By folding, the vibration direction converter 50 shown in FIG. 9 can be obtained.

  Since the vibration direction conversion part 50 mentioned above can form the link mechanism of the vibration direction conversion part 50 by using one integral part with respect to the two opposing voice coil support parts 40, a pair of drive parts Even in the case of forming a speaker device having the above, assembly work can be easily performed. In addition, by providing the immovable connecting portion 53C, the joint portion 52D (particularly with respect to the opposing vibration of the voice coil support portion 40 (vibration so that the plurality of voice coil support portions 40 are in opposite directions to each other) is provided. Even if R) and (L) are not supported by the frame 12, the positions of the joint portions 52D (R) and (L) are held constant, and this also leads to the speaker device of the vibration direction conversion unit. Can be simplified.

  The vibration direction conversion unit 50 includes, as a link mechanism, a first link unit 51A (R) on the right side and a third link unit 51C (R), a first link unit 51A (L) on the left side, and a third link unit. Since the parallel link is formed by the link portion 51C (L), the second connecting portion 53B fixed to the diaphragm 10 with respect to the opposing vibration of the voice coil support portion 40 is stably parallel along the Z-axis direction. Can be moved. As a result, it is possible to apply stable vibration to the planar diaphragm 10.

  A vibration direction converter 50 shown in FIG. 11 is an improved example of the embodiment shown in FIG. In the example shown in FIG. 11A, the convex portion 510 is provided on the link portion that is likely to be bent due to the opposing vibration of the voice coil support portion 40 to increase the rigidity. In the illustrated example, the first link portions 51A (R), (L), the second link portions 51B (R), (L), the connecting portions 53D (R), (L), and the connecting portions 53C are convex. A portion 510 is provided. Further, in the example shown in FIG. 5B, an opening 520 is provided in a link portion that does not particularly require strength to reduce the weight of the vibration direction changing portion. In the illustrated example, an opening 520 is provided in the connecting portion 53B. The weight reduction of the vibration direction converter is particularly effective in widening the reproduction characteristics and increasing the amplitude and sound pressure level of the sound wave for a predetermined audio current.

  FIG. 12 illustrates another example of the vibration direction conversion unit. The figure (a) has shown the assembly state, and the figure (b) has shown the unfolded state. The vibration direction conversion unit 50-1 includes a first link unit 51A-1 and a second link unit 51B-1 that form parallel links, and a direction that intersects the second link unit 51B-1. Is provided with a third link portion 51C-1. One end of the first link portion 51A-1 is connected to the connecting portion 53A-1 via the joint portion 52A-1, and the other end of the first link portion 51A-1 is connected via the joint portion 52B-1. It is connected to the connecting portion 53B-1. One end of the second link portion 51B-1 is connected to the connecting portion 53D-1 via the joint portion 52C-1, and the other end of the second link portion 51B-1 is connected via the joint portion 52D-1. It is connected to the connecting portion 53B-1. One end of the third link portion 51C-1 is connected to the connecting portion 53C-1 via a joint portion 52F-1, and the other end of the third link portion 51C-1 is connected via a joint portion 52E-1. It is connected to the intermediate position of the second link portion 51B-1.

  And connection part 53A-1 is a connection part (voice coil side connection part) connected with the voice coil side, and connection part 53B-1 is a connection part (diaphragm side connection part) connected with the diaphragm side. is there. The connecting portion 53C-1 is a connecting portion (stationary portion side connecting portion) connected to the stationary portion. According to this, the angles of the link portions 51A-1, 51B-1, and 51C-1 are changed by vibration along the X axis of the voice coil, and the diaphragm connected to the connecting portion 53B-1 is changed by the angle change to the Z axis. Vibrate in the direction.

  This vibration direction conversion part 50-1 can be formed from the sheet-like member 500-1 as shown in FIG.12 (b). A hollow portion (opening) m is formed in the central portion of the rectangular sheet-like member 500-1 so as to form the third link portion 51C-1 and the connecting portion 53C-1. And joint part 52A-1, 52B-1, 52C-1, 52D-1 is formed along a substantially parallel broken line. The vibration direction converter 50-1 is formed by bending the sheet-like member 500-1 along the joints 52A-1, 52B-1, 52C-1, and 52D-1.

  FIG. 13 is an external perspective view of the speaker device according to the embodiment of the present invention. The stationary part 100 of the speaker device 1U is formed of a first component member 100A and a second component member 100B. The second component member 100 </ b> B is a frame disposed on the vibration direction conversion unit 50 side, and supports a part of the vibration direction conversion unit 50. The terminal portions 81 and 81 arranged in a pair on the left and right are arranged between the first component member 100A and the second component member 100B. The first component member 100 </ b> A is a frame disposed on the diaphragm 10 side, and supports the diaphragm 10 via the edge 11.

  The first component member 100A and the second component member 100B support the magnetic circuit 20, and the first component member 100A supports one magnetic pole member (yoke portion 22) of the magnetic circuit 20. The second component member 100B supports the other one-side magnetic pole member (yoke portion 22) of the magnetic circuit 20, so that the first component member 100A and the second component member 100B are coupled together. A magnetic gap having a predetermined interval is formed between them. The yoke portion 22 is partly fitted in a recess of the receiving portion 105 formed in the first component member 100A and the second component member 100B, and is fixedly positioned.

  The first component member 100A and the second component member 100B are formed with protruding portions 109 (109A, 109B) that support the terminal portions 81, 81, and the terminal portions 81, 81 protrude from the protruding portion 109A. It is sandwiched between the portion 109. As a result, the first component member 100A and the second component member 100B are coupled, and at the same time, the terminal portions 81 and 81 are stably fixed.

  The stationary portion 100 includes an outer peripheral frame portion 101 and a bottom surface portion 107 that surround the magnetic circuit 20, and the terminal portions 81 and 81 are formed in a shape along the outer peripheral frame portion 101 and attached to the outer peripheral frame portion 101. . Accordingly, the terminal portions 81 and 81 do not protrude outward from the outer peripheral frame portion 101 of the stationary portion 100, and the device can be made compact. Further, since the terminal portions 81 and 81 are attached to the outer peripheral frame portion 101, the terminal portions 81 and 81 are stably fixed, and poor connection with the voice coils 30 and 30 can be avoided.

  The terminal portions 81 and 81 are electrically connected to wirings 82 and 82 that are electrically connected to the outside. The outer peripheral frame portion 101 of the stationary portion 100 includes a side surface to which the wiring 82 is attached, and guide portions 106 and 106 that guide the wiring 82 and 82 are formed on the side surface of the stationary portion 100.

  14 is a perspective view showing the internal structure of the speaker device (a state in which the first component member 100A is removed), and FIG. 15 is a perspective view showing the internal structure of the speaker device (a state in which the second component member 100B is removed). It is.

  The yoke portion 22 of the magnetic circuit 20 is provided with a protruding portion 22P for supporting the yoke portion 22 on the first component member 100A and the second component member 100B. It is engaged with the receiving portion 105 provided on the constituent member 100A and the second constituent member 100B.

  One of the first component member 100A or the second component member 100B is formed with a positioning pin 100P for positioning the terminal portions 81, 81, and the positioning pin 100P is inserted into the hole portion 81h of the terminal portions 81, 81. As a result, the terminal portion 81 is disposed at a predetermined position with respect to the stationary portion 100. Further, in the illustrated example, the terminal portions 81 and 81 have a concave portion 81b formed on the side portion, and the concave portion 81b engages with the convex portion 100B1 formed on the second component member 100B, thereby the terminal portion 81. , 81 are positioned on the second component member 100B.

  The voice coil 30 is formed in a flat plate shape with an annular conductive member, and this conductive member is supported by a rigid base (voice coil support portion 40). The voice coil 30 or the voice coil support portion 40 is unitized by the mounting unit 16 and is mounted between the first component member 100A and the second component member 100B. Further, the voice coil 30 or the voice coil support portion 40 is attached to the attachment unit 16 via the holding portion 15, and the attachment unit 16 is attached between the first component member 100A and the second component member 100B. The voice coil 30 or the voice coil support part 40 is held by the stationary part 100 via the holding part 15. Further, a connecting portion (connecting spacer) 60 is integrated with the mounting unit 16, and the voice coil 30 or the voice coil support portion 40 and the vibration direction changing portion 50 are connected via the connecting portion (connecting spacer) 60. Has been.

  A voice coil lead wire 32 is formed on the surface of the voice coil support portion 40 (base body) that supports the voice coil 30. The voice coil lead line 32 is a conductive layer 43 that is patterned on the outside of the conductive member of the voice coil 30 so that the voice coil lead line 32 is voiced. The conductive member of the coil 30 and the holding portion 15 are electrically connected to function as a relay line for inputting an audio signal to the conductive member of the voice coil 30.

  The holding portion 15 is formed with wiring for electrically connecting the voice coil 30 and the terminal portion 81, and the end portions of the terminal portions 81 and 81 are electrically connected with the wiring of the holding portion 15. And the voice coil lead line 32 are connected, and the wiring 82 is connected to the terminal portions 81, 81, whereby a voice signal is input to the voice coil 30 from the outside. This wiring can be formed by using the holding portion 15 as a conductive member. Further, a separate wiring can be formed in the holding portion 15. The holding portion 15 itself can be a wiring board.

  As described above, the holding portion 15 includes a rigid link portion that changes an angle in accordance with the vibration of the voice coil 30 and a joint portion that is provided at an end portion of the link portion so that the angle of the link portion can be changed. . The link portion and the joint portion are formed of a plurality of fibers and a resin that binds the fibers, and the orientation of the fibers is along the direction of refraction or rotation of the joint portion. Accordingly, the holding unit 15 restricts the vibration of the voice coil 30 in one axial direction (X-axis direction), and the vibration in the other direction of the voice coil 30 is suppressed.

  FIG. 16 shows a structure of a lid portion of a cabinet in which the speaker device is provided. The lid portion 301 includes an opening 301A that opens the diaphragm 10 of the speaker device 1U, a cover portion 301B that covers a driving portion (a movable portion other than the diaphragm 10) of the speaker device, and an outer peripheral portion 301C. In the illustrated example, the cross-sectional shape is curved, and an opening 301A1 corresponding to a first speaker device (for example, a subwoofer) and an opening 301A2 corresponding to a second speaker device (for example, a tweeter) are formed. The openings 301A1 and 301A2 are formed with wall portions 301As inclined from the openings 301A1 and 301A2 toward the sound radiation direction on the outer periphery thereof. This wall portion 301As can be effectively utilized when improving the directivity of sound radiated from the diaphragm 10. In particular, the wall portion 301As corresponding to the second speaker device 1T is formed with a diffusion portion 308 that diffuses sound toward the outside. The diffusing unit 308 radiates sound radiated from the diaphragm 10 in different directions, and includes a top T formed by intersecting two curved portions W1 and W1 facing each other. It is formed from the inner periphery to the outer periphery of the wall 301As. As a result, it is possible to diffuse and radiate the sound radiated from the speaker device for high sound reproduction having a relatively high directivity to a predetermined range.

  FIG. 17 is an explanatory diagram (sectional view) showing another embodiment of the speaker device. In this embodiment, the speaker 1 includes a plurality of speaker devices 1U, and is attached to the outer peripheral surface of the cabinet 300 at a position where a plurality of speaker devices 1U facing in directions different from each other in the acoustic radiation surface face each other. In the illustrated example, two speaker devices 1U are arranged in opposite directions, and their acoustic radiation surfaces face in directions opposite to each other, and the stationary parts 100 are directly or via other members. Thus, a thin double-sided radiation type speaker 1 is formed. At this time, if the two speaker devices 1U are driven by one audio signal, vibrations propagating to both the speaker devices 1U and 1U at the time of driving cancel each other and stable driving can be realized. In the speaker 1 capable of realizing the above-described thinning, the thickness of the speaker device does not increase so much even if the two diaphragms are arranged in opposite directions and joined to each other, and the space S1, in the cabinet 300 is not increased. By forming S2 on the side of the speaker devices 1U and 1U, the speaker 1 in which the depth (thickness) of the cabinet 300 is reduced can be obtained. Even when the depth (thickness) of the cabinet 300 is reduced, the space of the spaces S1 and S2 can be sufficiently secured by using the space on the side of the speaker devices 1U and 1U. Therefore, when the sealed cabinet 300 is formed. However, the problem that the vibration of the diaphragm 10 is suppressed by the influence of the stiffness of the air in the gavinet 300 hardly occurs.

  And in such a form, the damping member 350 can be provided between the speaker apparatuses 1U and 1U. According to this, since the vibration damping member 350 absorbs vibrations affecting each other speaker device 1U, it is possible to realize more stable driving of the speaker device.

  Further, in this embodiment, as described above, the vibration direction conversion unit 50 serves as the link mechanism 50L between the first link unit 51A and the stationary unit 100, with the link unit 51 serving as the first link unit 51A. The damping member 350 described above is attached to a part of the stationary portion 100 that includes the second link portion 51B and supports the second link portion 51B.

  The speaker shown in FIG. 18 is a modification of the example shown in FIG. The same parts are denoted by the same reference numerals, and redundant description is omitted. In this example, the vibration direction converter 50 and the diaphragm 10 are integrally formed of the same material. Here, the outer periphery of the diaphragm 10 integrated with the vibration direction changing unit 50 is supported by the stationary part via the edge 11.

  FIG. 19 is an explanatory view showing a speaker device 1S according to another embodiment of the present invention. Portions that are the same as those described above are assigned the same reference numerals, and redundant descriptions are omitted. The speaker device 1 </ b> S is integrally formed so that a part of the vibration direction conversion unit 50 becomes the vibration plate 10 by supporting the outer periphery of the vibration plate 10 with the vibration direction conversion unit 50.

  The vibration direction conversion unit 50 is provided obliquely with respect to the vibration direction of the voice coil 30 and is connected to both ends of the voice coil 30 or the voice coil support unit 40 via joint portions 52A and 52G. A link portion 51A, 51G and a diaphragm 10 connected to the first link portions 51A, 51G via joint portions 52B, 52H are provided, and a pair of first link portions 51A, 51G form a parallel link. ing. Furthermore, the voice coil 30 or the voice coil support part 40, the vibration direction conversion part 50 including the pair of first link parts 51A, 51G and the joint parts 52A, 52G, 52B, 52H, and the diaphragm 10 are integrated. It is formed from a sheet-like part.

  In the illustrated example, the voice coil 30 or the voice coil support unit 40, the magnetic circuit 20 corresponding to the voice coil 30, and the vibration direction conversion unit 50 are arranged opposite to each other symmetrically. That is, a pair of voice coils 30 or a voice coil support unit 40 driven by a pair of magnetic circuits 20 (R) and 20 (L) is provided with vibration direction conversion units 50 at both ends along the vibration direction, respectively. A pair of inner first link portions 51A (R), 51A (L) and second link portions 51B (R), 51B (L), which are one of the first link portions, are provided in the center, respectively. A pair of outer first link portions 51G (R) and 51G (L), which is the other of the first link portions, is provided outside the voice coil 30 or the voice coil support portion 40. The inner first link portions 51A (R) and 51A (L) are joined to the central portion (center of gravity position) of the diaphragm 10 through the joint portions 52B (R) and 52B (L) so as to be refractable. Yes. On the other hand, the outer first link portions 51G (R) and 51G (L) are connected to the outer peripheral portion of the diaphragm 10 via the joint portions 52H (R) and 52H (L) so as to be refractable.

  As for the 2nd link part 51B, one edge part is connected via the joint part 52C (R) and 52C (L) to the intermediate part of 1st link part 51A (R) and 51A (L) inside, The other end portion is supported by the bottom portion 12A of the frame 12 which becomes the stationary portion 100 via the joint portions 52D (R) and 52D (L), and the reaction force from the stationary portion 100 is applied to the inner first link portion 51A ( R), 51A (L). The second link portion 51B is formed by cutting out a part of the inner first link portions 51A (R) and 51A (L), and includes the second link portion 51B. It is formed from parts. The outer first link portions 51G (R) and 51G (L) may not be provided as necessary. In the illustrated example, between the first link portion 51A (R) and the first link portion 51A (L), or between the second link portion 51B (R) and the second link portion 51B (L). Is not provided with a specified interval, but may be provided with a specified interval if necessary.

  Then, a concave portion or a notch portion 77 is formed as a contact avoidance portion 70 at a location facing the joint portions 52B (R) and 52B (L) in the diaphragm 10, thereby forming a space between each joint portion. To be. Further, in the first link portions 51A (R) and 51A (L), a concave portion or a notch portion 77 as the contact avoiding portion 70 is formed on the surface side where the joint portions 52B (L) and 52B (R) face each other. Yes. Further, a recess or notch 77 as a contact avoiding portion 70 is formed at a location where the joint portions 52D (R) and 52D (L) face each other on the bottom portion 12A of the frame 12.

  In the illustrated example, a baffle plate 10 </ b> F is disposed between the diaphragm 10 and the frame 12 that is the stationary portion 100. The outer peripheral portion of the diaphragm 10 may be supported by the baffle plate 10F via the edge 11 without being limited to the illustrated example, or the frame 12 which is the stationary portion 100 via the edge 11 without providing the baffle plate 10F. It may be supported. Further, the joint portions 52H (R) and 52H (L) disposed between the outer first link portions 51G (R) and 51G (L) and the outer peripheral portion of the diaphragm 10 are arranged on the outer periphery of the diaphragm 10. However, the present invention is not limited to this, and the first link on the outer side via the intermediate position in the width direction of the outer peripheral portion of the diaphragm 10 and the joint portions 52H (R) and 52H (L). The parts 51G (R) and 51G (L) may be coupled in a refractive manner. Further, the outer edge of the diaphragm 10 is supported by a baffle plate 10F which is a stationary part via an edge 11.

  20 (a) is a plan view, FIG. 20 (b) is a cross-sectional view taken along the line AA in FIG. 20 (a), and FIG. A passive vibrator (passive radiator) is shown. The speaker vibration body a100 that becomes the passive vibration body vibrates by an operation of a drive unit (not shown), and includes a plurality of vibration plates a10 and a vibration plate coupling portion a20. The diaphragm connecting part a20 can be formed in the same manner as the speaker vibration system movable member A1 described above. That is, a link part a21 and a joint part a22 to be described later can be made to correspond to the above-described link part A3 and joint part A4, respectively.

  The plurality of diaphragms a10 are supported to be able to vibrate by the stationary part that supports the drive part described above. The diaphragm connecting portion a20 is provided between the first diaphragm a11 and the second diaphragm a12 facing each other among the plurality of diaphragms a10, and the first diaphragm a11 and the second diaphragm a12. Are connected to each other so as to be close to or separated from each other. The outer peripheral part a10R of the first diaphragm a11 and the outer peripheral part a10R of the second diaphragm a12 are cylindrical diaphragm support parts that surround a space aS sandwiched between the first diaphragm a11 and the second diaphragm a12. A15 is supported so as to be able to vibrate. The outer peripheral part a10R of the diaphragm a10 is supported by the diaphragm support part a15 via the edge a14. The diaphragm support portion a15 is the stationary portion described above. Further, the space surrounded by the first diaphragm a11, the second diaphragm a12, the edge a14, and the diaphragm support portion a15 may be substantially sealed. As an example, the diaphragm a10 is formed in a flat plate shape and has rigidity in the vibration direction of the diaphragm a10.

  In the illustrated example, the diaphragm connecting portion a20 includes a link mechanism a20L formed by a rigid link portion a21. The link mechanism a20L includes a joint part a22 that is formed between the link part a21 and the diaphragm a10 and can be bent or bent. The link part a21 is connected to the diaphragm a10 or a link connecting part a24 described later directly or via another member. In the illustrated example, the link mechanism a20L is formed substantially symmetrically with respect to the central axis a20D between the first diaphragm a11 and the second diaphragm a12.

  The link part a21 includes a first link part a21A having a joint part a22 on one end and the other end on the first diaphragm a11 side, and a joint part a22 on one end and the other end on the second diaphragm a12 side. The link mechanism a20L includes two link parts a21B, and the link mechanism a20L is configured so that the first link part a21A and the second link part a21B change the angle by the vibration of the first diaphragm a11 or the second diaphragm a12. The link connection part a24 which connects the other end of 1 link part a21A and the other end of 2nd link part a21B is provided. As an example, one end of the link part a21 arranged on the diaphragm side has rigidity.

  Such a loudspeaker vibrating body a100 is mechanically coupled by a diaphragm coupling portion a20 so that the first diaphragm a11 and the second diaphragm a12 vibrate in opposite directions. As a result, when the speaker vibration body a100 is mounted as a passive vibration body in a cabinet equipped with a speaker unit, the pressure change inside the cabinet accompanying the operation of the speaker unit is mechanically reversed to generate sound waves outside the cabinet. As a result, the low frequency characteristics can be improved even with a smaller cabinet volume. Further, when the speaker vibrating body a100 is directly driven, the sound waves radiated from the first diaphragm a11 and the second diaphragm a12 can be radiated in substantially the same phase and in opposite directions.

  FIG. 21 is an explanatory diagram showing another form of the speaker vibrating body (the parts common to the above-mentioned form are given the same reference numerals and the duplicate description is partially omitted). Also here, the diaphragm connecting portion a20 can be formed in the same manner as the speaker vibration system movable member A1 described above. That is, a link part a21 and a joint part a22 to be described later can be made to correspond to the above-described link part A3 and joint part A4, respectively. Note that the space surrounded by the first diaphragm a11, the second diaphragm a12, the edge a14, and the diaphragm support portion a15 may be substantially sealed. The speaker vibrating body a100A shown in FIG. 5A includes a first link portion a21A and a second link portion a21B each having a pair of link portions a21 inclined in opposite directions. The pair of first link parts a21A, a21A and the pair of second link parts a21B, a21B form a pantograph-like link mechanism, and the ends of the first link part a21A and the second link part a21B The parts are connected by a link connecting part a24. The link connecting part a24 is supported by a suspension (holding part) a25 so as to be movable in the X-axis direction. Also in this manner, the first diaphragm a11 and the second diaphragm a12 are mechanically connected so as to be close to or away from each other as in the example shown in FIG.

  As in the example shown in FIG. 18, the speaker vibrating body a <b> 100 </ b> B shown in FIG. 18B includes a plurality of substantially parallel link parts, each of the first link part a <b> 21 </ b> A and the second link part a <b> 21 </ b> B. Although a21 is provided, the first link part a21A and the second link part a21B are connected to the link connection part a24 at different positions. The connecting portion between the link connecting portion a24 and the first link portion a21A or the second link portion a21B is a joint portion a22 in which both of them are bent or bent. Also in this manner, the first diaphragm a11 and the second diaphragm a12 are mechanically connected so as to be close to or away from each other as in the example shown in FIG.

  FIG. 22 shows a speaker device including a speaker unit and a passive diaphragm. The speaker unit a200A can be mounted in various cabinets to form the speaker device a1B. The speaker unit a200A includes the vibration direction conversion unit 50 described above. In the illustrated example, a speaker unit a200A is mounted on a cabinet a50 that supports at least a passive vibrator a101 having a diaphragm. In this example, the first diaphragm a11 includes an acoustic radiation surface that emits sound waves, and the second diaphragm a12 disposed inside the cabinet a50 has a driving force release surface that drives the passive vibrator a101. Prepare. Here, an example is shown in which the passive vibrator a101 is provided as a passive radiator, but a duct having a sound emitting hole for emitting sound waves toward the outside of the cabinet a50 may be provided instead of the passive vibrator a101. .

  Such a speaker device a1B is sealed when the first diaphragm a11 and the second diaphragm a12 are vibrated by the driving unit a30 and the first diaphragm a11 and the second diaphragm a12 are brought into a close state. The pressure inside the cabinet a50 tends to be negative, and when the first diaphragm a11 and the second diaphragm a12 are separated, the pressure inside the cabinet a50 tends to be positive. The passive vibrator a101 vibrates due to the pressure change inside the cabinet a50.

  23 and 24 are explanatory diagrams showing application examples of the speaker device according to the embodiment of the present invention. The example shown in FIG. 23 (FIG. 23 (a) is a front perspective view and FIG. 23 (b) is an XX cross-sectional view) is a speaker that is mounted on a wall surface to obtain an omnidirectional sound output. The speaker b1 includes a mounting portion b11 on the side of the cabinet b10. By mounting the mounting portion b11 on the wall surface W, the one surface b10a and the other surface b10b of the cabinet b10 are projected from the indoor space. The angle formed by the wall surface W and the speaker b1 may be about 90 degrees, for example, and can be changed as appropriate.

The cabinet b10 includes a first speaker device b100, a second speaker device b200, a third speaker device b300, and a fourth speaker device b400. Only one of the first speaker device b100 and the second speaker device b200 may be used. Each of the first and second speaker devices b100 and b200 includes a pair of diaphragms b12 and b12 arranged to face each other, and includes a pair of driving units that include the vibration direction conversion unit 50 and that are driven by an audio signal. The diaphragms b12 and b12 vibrate in substantially the same phase and substantially the same amplitude in opposite directions. For this reason, when the distance between the pair of diaphragms b12 and b12 is sufficiently small with respect to the wavelength of the sound wave radiated from the first and second speaker devices b100 and b200, the first and second speaker devices b100, b200 can be regarded as a point sound source. At this time, an omnidirectional speaker device can be realized by the first and second speaker devices b100 and b200 and the speaker b1. On the other hand, the vibration of the diaphragm b12 propagates to the frame as a stationary part, and unnecessary vibration may occur. At this time, since the first and second speaker devices b100 and b200 include the pair of diaphragms b12 and b12, unnecessary vibrations can be canceled in the frame.
In addition, the reaction force received by the vibration direction converter 50 from the diaphragm b12 may propagate to the stationary part including the frame, and unnecessary vibration may occur. The first and second speaker devices b100 and b200 include a pair of opposed diaphragms b12 and b12. The vibration direction converter 50 mechanically connected to the diaphragms b12 and b12 is opposite to each other. Reaction force acts to cancel out. For this reason, generation | occurrence | production of an unnecessary vibration is suppressed. Further, the first and second speaker devices b100 and b200 include a pair of voice coils arranged at positions facing the diaphragm b12. Even if unnecessary vibration propagates to the frame due to the vibration of the voice coil, the unnecessary vibration can be canceled in the frame. From the above, it is possible to suppress the occurrence of unnecessary vibrations in the first and second speaker devices b100 and b200.
Further, the third and fourth speaker devices b300 and b400 are arranged so that the acoustic radiation directions are opposite to each other, and the diaphragms b13 and b13 that are driven with substantially the same phase and substantially the same amplitude by one audio signal. I have. Both the first speaker device b100 and the second speaker device b200 may be the speaker device 1 shown in FIGS. 17 and 18, or the speaker device a200A shown in FIG. Further, a combination in which one of the first speaker device b100 and the second speaker device b200 is the speaker device 1 shown in FIGS. 17 and 18 and the other is the speaker device a200A shown in FIG. As a combination of the first speaker device b100 and the second speaker device b200, a combination of the speaker device 1 shown in FIGS. 17 and 18 and the passive vibrators a100, a100A or a100B, a101 is shown in FIG. The speaker device a200A and the passive vibrators a100, a100A or a100B, a101 may be combined with a passive vibrator. The present invention is not limited to the combinations exemplified above, and various combinations can be applied.

  The cabinet b10 includes recesses b14 and b15 that form acoustic radiation guide surfaces around the diaphragms b11 and b12. By using the first and second speaker devices b100, b200 for low-frequency reproduction and the third and fourth speaker devices b300, b400 for medium-high frequency reproduction, a full-range reproduction speaker can be obtained.

  In the example shown in FIG. 24 (FIG. 24 (a) is a cross-sectional view, FIG. 24 (b) is a plan view, and FIG. 24 (c) is a perspective view), an omnidirectional sound output is erected on the floor surface. It is a speaker for obtaining. The speaker device c1 includes a speaker unit 1U (1W) for low-frequency reproduction, a speaker unit 1T for medium-high frequency reproduction, and a cabinet 300 attached to the speaker units 1U and 1T. The details of the speaker unit 1U are, for example, the embodiment shown in FIG. 16, and a duplicate description is omitted here. The diaphragm 10 of the speaker unit 1U and the diaphragm 10T of the speaker unit 1T are exposed on the acoustic radiation side surface (front surface 300a) of the cabinet 300.

  This speaker device c1 includes a plurality of speaker units 1T for medium / high sound reproduction, in addition to the plurality of speaker units 1U (1W) for low sound reproduction. In the illustrated example, the plurality of low-frequency reproduction speaker units 1U (1W) and the plurality of medium-high frequency reproduction speaker units 1T are disposed at positions facing each other with their acoustic radiation surfaces directed in different directions. ing. More specifically, the low sound reproduction speaker unit 1U and the medium / high sound reproduction speaker unit 1T are arranged on one acoustic radiation surface, and the low sound reproduction speaker unit 1U and the middle sound reproduction speaker unit 1T are arranged at 180 ° different directions. A loudspeaker reproducing speaker unit 1T is disposed.

Further, the cabinet 300 of the speaker device c1 forms a prescribed space between the speaker units 1U and 1T, and the acoustic radiation side surface (front surface 300a) of the cabinet 300 has a long axis O ₁ and a short axis O. It has a planar shape specified in ₂ . More specifically, acoustic emission side surface (front surface 300a) of the cabinet 300 is forms a long rectangular shape in the direction of the major axis O _1, are formed in the shape of the depth is relatively small box-shaped.

In the speaker device c1, a low-frequency reproduction speaker unit 1U and a middle-high frequency reproduction speaker unit 1T arranged on the same sound radiation surface side are mounted side by side along the long axis O ₁ of the cabinet 300. The distance L ₁ between the outer peripheral portion of the cabinet 300 and the speaker unit 1U in the direction of the minor axis O ₂ of 300 (the Y direction shown in the figure) is smaller than the width L ₂ of the speaker unit 1U in the direction (Y direction). Or substantially equal. That is, the distance L ₁ from the speaker unit 1U to the outer periphery of the cabinet 300 is relatively small. When the distance L ₁ from the speaker unit 1U to the outer periphery of the cabinet 300 is sufficiently small, the width L ₀ of the cabinet 300 in the direction of the minor axis O ₂ (Y direction) is the speaker unit in the direction (Y direction). The structure is substantially equal to the width L _{2 of} 1U.

  FIG. 25 is an explanatory view (sectional view) showing an example of a speaker unit 1T for middle and high frequency reproduction used in the embodiment shown in FIG. 23 and FIG. Here, a speaker unit 1T for middle and high frequency reproduction using a dome-shaped diaphragm is shown.

  The speaker unit 1T includes a magnetic circuit 20T, a frame 40T (stationary part) to which the magnetic circuit 20T is attached at the rear, a diaphragm 10T, a cylindrical voice coil support part 31T, and a voice coil support part 31T. And a wound voice coil 30T.

  The magnetic circuit 20T includes a yoke 21T having a bottom surface portion 21Ta having a circular planar shape and a columnar center pole 21Tb provided on the bottom surface portion 21Ta, and an annular magnet 22T disposed outside the center pole 21Tb. And an annular plate 23T disposed on the annular magnet 22T. A magnetic gap Gt in which the voice coil 30T is disposed is provided between the inner peripheral side surface of the plate 23T and the outer peripheral side surface of the center pole 21Tb.

  The diaphragm 10T includes a dome-shaped vibrating portion 11T that is convex in the acoustic radiation direction, and an edge portion 12T that is formed continuously with the vibrating portion 11T and supports the vibrating portion 11T on a frame. A connecting portion 13T that supports the voice coil support portion 31T is provided between the vibrating portion 11T and the edge portion 12T, and is formed in a convex shape toward the magnetic circuit 20T. An end of the voice coil support portion 31T is joined to the connecting portion 13T by a joining member such as an adhesive. In addition, the vibration part 11T and the edge part 12T are not limited to being integrally formed, and the vibration part 11T and the edge part 12T may be formed as separate members and joined by a joining member or the like. I do not care. Moreover, although the voice coil support part 31T and the diaphragm 10T are formed as separate members, the present invention is not limited to this and may be formed integrally.

Although not shown, the vibration part 11T and the voice coil support part 31T are formed as separate members, and the outer peripheral part of the vibration part 11T is attached to the upper end part of the voice coil support part 31T with, for example, a joining member. The inner peripheral portion of the edge portion 12T may be attached to the outer peripheral side surface of the support portion 31T at a position away from the outer peripheral portion of the vibration portion 11T with, for example, a joining member. In addition, the vibration part 11T may be concave toward the acoustic radiation direction. The above-described technology relating to the mid-high range reproduction speaker unit is described in Japanese Patent No. 3989856 filed in Japan on February 27, 2003, and US Patent No. 7088842 filed in the US on February 25, 2004. . This application uses the content described in the said gazette.
Moreover, although the edge part 12T is formed in the convex shape toward the sound radiation | emission direction, it is not limited to this, You may make it into a concave shape.
Further, the effective vibration area may be expanded by making the edge portion 12T relatively large. In this case, the edge part 12T has the same function (function as a diaphragm) as the vibration part 11T.

  A flange portion 14T joined to the outer peripheral portion of the frame 40T is formed on the outer peripheral portion of the edge portion 12T. An outer edge protrusion formed on the outer peripheral portion of the frame 40T is extended from the outer peripheral edge of the flange portion 14T. An annular gasket 15T is provided on the flange portion 14T joined to the outer peripheral portion of the flange portion 40.

  The technology related to the above-described mid-high range playback speaker unit is described in Japanese Patent Application No. 2005-333276 filed in Japan on May 18, 2004, and US Patent No. 7577270 filed in the United States on May 17, 2005. Yes. This application uses the content described in the said gazette. Note that the mid-high range reproduction speaker unit 1T is not limited to a speaker unit including a dome-shaped diaphragm, and a known speaker unit such as a cone-shaped diaphragm, a speaker unit including a flat diaphragm, or the like is used. be able to.

  In addition, instead of the mid-high range reproduction speaker unit shown in FIG. 25, the speaker unit disclosed in PCT / JP2008 / 062513 (international publication number WO2010 / 004661) filed on July 10, 2008 was applied. It doesn't matter. All the contents described in the international application PCT / JP2008 / 062513 are incorporated in the present application. The speaker device disclosed in this international application is different from a vibrating body in which a voice coil is supported on a part of a diaphragm, a first magnetic pole part (plate) including a magnet, and the first magnetic pole part (plate). And a magnetic circuit in which a second magnetic pole part (yoke) having magnetic poles is arranged separately. The voice coil is disposed between the first magnetic pole part and the second magnetic pole part. In the vibrating body, a conductive part is formed in part or all of the diaphragm in the vicinity of the voice coil, and the conductive part is disposed between the first magnetic pole part and the second magnetic pole part.

  FIG. 26 is an explanatory view showing another configuration example of the vibration system movable member for a speaker according to the embodiment of the present invention. The speaker vibration system movable member A1d (A1) constitutes an edge d11 for supporting the outer peripheral portion of the diaphragm d10 of the speaker device on the frame d12 which is a stationary portion. One end of the edge d11 is joined to the outer periphery of the diaphragm d10, and the other end is joined to the frame d12 with the gasket d13 disposed on the upper surface side. The edge d11 is arranged such that a first edge d11a having a curved portion and a second edge d11b are opposed to each other. Further, in the example shown in FIG. 6A, the second edge d11b includes the pair of link portions A3 described above, and includes the joint portion A4 described above between the pair of link portions A3 and A3. And a plurality of fibers A5 and a resin A6 that restrains the fibers A5. Further, in the illustrated example, each link portion A3 includes a joint portion A4 between the link portion A3p serving as a joint portion with the diaphragm d10 or the frame d12. The speaker device including the speaker vibration system movable member A1d may be obtained by replacing the diaphragm 21J and the edge 4J shown in FIG. 1 with the diaphragm d10 and the edge d11 described above, and FIG. The diaphragm 10 and the edge 11 of the speaker device 1U shown may be replaced with the diaphragm d10 and the edge d11 described above.

  Further, as shown in FIG. 26 (b), the first edge d11a may be composed of a link part A3 and a joint part A4 as in the case of the second edge d11b, if necessary. In this case, the first edge d11a has a convex shape toward the acoustic radiation side. Moreover, you may employ | adopt what comprised the 1st edge d11a and the 2nd edge d11b by the link part A3 and joint part A4 which were mentioned above as a damper.

  The edge A1d having such a configuration can favorably support the diaphragm d10 with respect to the frame d12 as a stationary part. Further, since the edge A1d has the above-described configuration, the edge A1d also repeats the bending motion with the vibration of the voice coil, but the edge A1d is prevented from breaking and the edge A1d smoothly bends. The supporting force of the edge A1d with respect to the diaphragm d10 in the radial direction can be made relatively large, and the rigidity of a part of the edge A1d can be made relatively large. The indirect portion A4 is disposed close to the first edge d11a, but a predetermined gap is provided between the indirect portion A4 and the first edge d11a so that the indirect portion A4 can be bent. It may be provided.

  FIG. 27 is an explanatory view showing another configuration example of the speaker vibration system movable member according to the embodiment of the present invention and a speaker device including the speaker vibration system movable member (FIG. 27A is a speaker). It is a top view of an apparatus, and the figure (b) is Xe-Xe partial sectional view. This speaker vibration system movable member A1e (A1) constitutes an edge e11 for supporting the outer peripheral portion of the diaphragm e10 of the speaker device on a frame e12 which is a stationary portion, and this edge e11 is a so-called gathered edge. It has a form. In the illustrated speaker device, a magnetic circuit e13 is attached to a frame e12, and a voice coil e14 disposed in a magnetic gap e13g of the magnetic circuit e13 is joined to the diaphragm e10 directly or via a voice coil support part e15. . The voice coil e14 or the voice coil support part e15 is supported by the frame e12 via the damper e16.

  The edge e11 includes a plurality of the link portions A3 described above, and the joint portion A4 described above is provided between the plurality of link portions A3, and is composed of a plurality of fibers A5 and a resin A6 that restrains the fibers A5. . The edge e11 has a plurality of link portions A3 arranged along the radial direction and the circumferential direction, and a joint portion A4 is arranged between the link portions A3 to form a gathered edge.

  With the edge e11 having such a configuration, the diaphragm e10 can be favorably supported with respect to the frame e12 as a stationary part. In addition, since the edge e11 has the above-described configuration, the edge e11 also repeats the bending motion in accordance with the vibration of the voice coil e14. In addition, the supporting force of the edge e11 with respect to the diaphragm e10 in the radial direction can be made relatively large, and the rigidity of a part of the edge e11 can be made relatively large.

  FIG. 28 is an explanatory diagram (plan view) showing another configuration example of the speaker vibration system movable member according to the embodiment of the present invention. This speaker vibration system movable member A1f (A1) constitutes an edge f11 for supporting a diaphragm (not shown) to a stationary part (not shown), and this edge f11 has a so-called tangential edge form. ing. As shown in FIG. 2B, the edge f11 is composed of a plurality of fibers A5 and a resin A6 that restrains the fibers A5, and includes a plurality of the link portions A3 described above. Between the plurality of link portions A3, The joint portion A4 described above is provided. The edge f11 has a plurality of link portions A3 arranged along the radial direction and the circumferential direction, and a joint portion A4 is arranged between the link portions A3 to form a tangential edge.

  With the edge f11 having such a configuration, the diaphragm f10 can be favorably supported with respect to the frame as a stationary part. In addition, since the edge f11 has the above-described configuration, the edge f11 also repeats the bending motion along with the vibration of the voice coil, but the edge f11 is prevented from breaking, and the edge f11 performs the bending motion smoothly. The supporting force of the edge f11 with respect to the diaphragm f10 in the radial direction can be made relatively large, and the rigidity of a part of the edge f11 can be made relatively large.

  FIG. 29 is an explanatory diagram showing another configuration example of the speaker vibration system movable member according to the embodiment of the present invention. FIG. 4A is a cross-sectional view of a main part of a speaker device provided with a speaker vibration system movable member, FIG. 4B is a plan view of the speaker vibration system movable member, and FIG. Xg-Xg sectional drawing of a member is shown, respectively. The illustrated speaker device includes a diaphragm g10, an edge g11, a magnetic circuit g13, a voice coil g14, a voice coil support part g15, a damper g16, and the like.

  The diaphragm g10 has a dome shape, the outer periphery thereof is connected to the inner periphery of the edge g11, and the outer periphery of the edge g11 is joined to a stationary part such as a frame (not shown). The dome-shaped diaphragm g10 and the edge g11 having a substantially semicircular cross-sectional shape may be separate members or integral members. The magnetic circuit g13 includes an annular plate g13a having a hole in the center, an annular magnet g13b, and a yoke g13c having a concave cross section, and forms a magnetic gap between the plate g13a and the yoke g13c. A voice coil g14 is disposed in the magnetic gap, and the voice coil g14 is joined to the diaphragm g10 directly or via a voice coil support part g15. The voice coil g14 or the voice coil support part g15 is supported on the plate g13a of the magnetic circuit g13 which is a stationary part via a damper g16. A sound absorbing material (not shown) can be disposed on the damper g16, and this sound absorbing material can be formed of a material having air permeability.

  In this example, the speaker vibration system movable member A1g (A1) constitutes the damper g16. The lower end of the damper g16 is supported on the plate g13a, the outer periphery thereof is joined to the inner peripheral surface of the voice coil g14 or the voice coil support portion g15, and the vibrating body including the voice coil g14 is disposed in the direction of the central axis. Is elastically supported.

  A structural example of the damper g16 will be described with reference to FIGS. 29 (b) and 29 (c). FIG. 29B is a plan view seen from the acoustic radiation side, and FIG. 29C is an Xg-Xg sectional view thereof. The damper g16 is a thin plate-like member, and is provided so as to protrude from the annular plate-like plate portion g16A (a portion surrounded by a dashed line in FIG. 29C) and the plate portion g16A to one surface side. And a protruding portion g16B (a portion surrounded by a two-dot broken line in FIG. 29C).

  The plate portion g16A includes a movable portion g16A1 that elastically supports the voice coil support portion g15 or the voice coil g14, and a surface portion g16A2 provided inside the protruding portion g16B. The movable portion g16A1 has a flat plate shape and an annular shape, and an outer peripheral portion thereof has a folded portion g16A3 that is folded back to the upper surface side of the plate portion g16A (that is, the acoustic radiation side). The folded portion g16A3 may be folded back on the lower side in the drawing (opposite to the acoustic radiation side). The folded portion g16A3 is joined to the inside of the voice coil support portion g15 or the voice coil g14. The movable part g16A1 and the surface part g16A2 of the plate part g16A each have a surface extending in the radial direction, and openings g16A4 and g16A5 are provided on the surfaces, respectively. The openings g16A4 and g16A5 are covered with a sound absorbing material (not shown) having air permeability as necessary.

  The protruding portion g16B is provided between the movable portion g16A1 and the surface portion g16A2, and includes a side portion g16B1 and a bottom portion g16B2, and has a shape protruding toward the plate g13a of the magnetic circuit g13. The protrusion g16B has a bottom g16B2 in contact with the upper surface of the plate g13a. Further, the protruding portion g16B has a height h so as to form a predetermined gap between the plate portion g16A and the plate g13a.

The damper g16, which is the speaker vibration system movable member A1g, includes the movable part g16A1 and the surface part g16A2 of the plate part g16A, the side part g16B1 and the bottom part g16B2 of the protruding part g16B, respectively, and the link part A3 and the link part. The joint portion A4 described above is formed between A3. Thus, as shown in FIG. 2B, the damper g16 includes a link portion A3 and a joint portion A4, and is composed of a plurality of fibers A5 and a resin A6 that restrains the fibers A5. The height h described above is set to a height at which the movable portion g16A1 can move in the vibration direction of the voice coil g14 with the joint portion A4 as a base point by the vibration of the voice coil g14.
With the damper A1g having such a configuration, the voice coil g14 can be favorably supported with respect to the plate g13a as a stationary part. Further, by providing the damper A1g with the above-described configuration, the damper A1g also repeats the bending motion along with the vibration of the voice coil g14. However, the damper A1g can bend smoothly by suppressing the breakage of the damper A1g. In addition, the support force of the damper A1g with respect to the voice coil g14 in the radial direction can be made relatively large, and the rigidity of a part of the damper A1g can be made relatively large.

  30 and 31 are explanatory views showing other examples of the configuration of the speaker vibration system movable member according to the embodiment of the present invention. 30 (a) is a plan view of a vibration system movable member for a speaker, FIG. 30 (b) is a cross-sectional view taken along Xh-Xh, FIG. 31 (a) is an enlarged view of portion A in FIG. 30 (b), and FIG. It is a fragmentary perspective view of a vibration system movable member.

  In this example, the speaker vibration system movable member A1h (A1) constitutes the damper h16. The damper h <b> 16 is a member that supports a voice coil or a voice coil support portion (not shown) so as to vibrate freely on the stationary portion. The damper h16 includes an annular outer peripheral frame portion h16A, an annular inner peripheral frame portion h16B disposed inside the outer peripheral frame portion h16A, and an arm portion provided between the outer peripheral frame portion h16A and the inner peripheral frame portion h16B. h16C.

  The outer peripheral frame portion h16A includes a fitting portion h16A2 having a stepped portion that fits with a stationary portion such as a frame on the outer peripheral surface h16A1. Further, one end of the arm portion h16C is connected to the inner peripheral surface h16A3 of the outer peripheral frame portion h16A at a constant interval. It is not necessary to provide the fitting portion h16A2 as necessary.

  The arm part h16C extends in a substantially S shape between the outer peripheral frame part h16A and the inner peripheral frame part h16B. The arm part h16C includes an arm part body h16C1 and an end part h16C2 that elastically connect the outer peripheral frame part h16A and the inner peripheral frame part h16B. The arm part main body h16C1 extends along the outer peripheral frame part h16A and the inner peripheral frame part h16B. The end portion h16C2 of the arm portion h16C extends in a direction (eg, radial direction) intersecting with a direction (eg, circumferential direction) in which the outer peripheral frame portion h16A or the inner peripheral frame portion h16B extends.

  The joint portion A4 described above is provided between the end portion h16C2 of the arm portion h16C and the arm portion main body h16C1. The arm portion h16C is composed of the above-described resin A6 and fiber A5. The arm main body h16C1 has rigidity similar to the above-described link portion A3. The end h16C2 may be provided with a protrusion h16C3 for increasing the strength. One end h16C2a of the arm portion h16C is connected to the inner peripheral surface h16A3 of the outer peripheral frame portion h16A, and the other end h16C2b is connected to the outer peripheral surface h16B1 of the inner peripheral frame portion h16B. Moreover, the connection part in the edge part h16C2 of the arm part h16C connected to the inner peripheral frame part h16B or the outer peripheral frame part h16A is formed in a curved surface shape. Further, four arm portions h16C are provided at positions that are substantially rotationally symmetric with a constant interval between the inner peripheral frame portion h16B and the outer peripheral frame portion h16A.

The other end h16C2b of the arm portion h16C is connected to the outer peripheral surface h16B1 of the inner peripheral frame portion h16B at a constant interval. On the inner peripheral surface h16B2 of the inner peripheral frame portion h16B, a plurality of convex portions h16B3 are provided at regular intervals toward the inside. A voice coil or a voice coil support (not shown) (not shown) is inserted into an opening h16p formed in the inner frame h16B, and the arm h16C and the voice coil are connected to each other or the arm h16C. The voice coil is connected via the voice coil support part. The outer peripheral surface of the voice coil or the like is supported by the convex portion h16B3.
By providing the damper h16 with such a configuration, the voice coil can be favorably supported with respect to the frame as the stationary portion. In addition, since the damper h16 has the above-described configuration, the damper h16 also repeats the bending motion in accordance with the vibration of the voice coil. However, the damper h16 can be prevented from breaking and the damper h16 can bend smoothly. The support force of the damper h16 with respect to the voice coil in the radial direction can be made relatively large, and the rigidity of a part of the damper h16 can be made relatively large.

  The operation mode of the damper h16 will be described in detail. When the voice coil is driven, the voice coil vibrates in the driving direction (vertical direction in FIG. 30B), and the inner peripheral frame portion h16B also vibrates with the vibration of the voice coil. When the inner peripheral frame portion h16B vibrates, the arm portion h16C connected to the outer peripheral surface h16B1 of the inner peripheral frame portion h16B also vibrates. At this time, the joint A4 provided between the arm main body h16C1 and the end h16C2 is bent or refracted so that the arm main body h16C1 and the end h16C2 move following the vibration of the voice coil. To do. Since the damper h16 performs such an operation, the voice coil can be favorably supported with respect to the stationary portion.

  Such a speaker device can be effectively used for various electronic devices and in-vehicle use. FIG. 32 is an explanatory view showing an electronic apparatus including the speaker device according to the embodiment of the present invention. In the electronic device 2 such as the mobile phone or the portable information terminal shown in FIG. 5A, or the electronic device 3 such as the flat panel display shown in FIG. Even if the speaker device 1 is housed in the housing or the speaker device 1 is attached to the side surface of the housing as a member to be attached to the electronic device, the thickness space necessary for installing the speaker device 1 can be reduced. The overall thickness can be reduced. In addition, sufficient audio output can be obtained even in a thin electronic device.

  FIG. 33 is an explanatory view showing an automobile provided with a speaker according to an embodiment of the present invention. In the automobile 4 shown in the figure, the space in the vehicle can be expanded by making the speaker device 1 thinner. In particular, even if the speaker device 1 according to the embodiment of the present invention is attached to a door panel, a ceiling, a rear tray, or a dashboard as a mounted member, the protrusion to the interior space can be made relatively small, and the operation space of the driver can be expanded, The indoor space can be expanded. In addition, since sufficient sound output can be obtained, music and radio broadcasting can be enjoyed comfortably in the car even during high-speed driving with a lot of noise.

  In addition, as a building equipped with the speaker device 1, a hotel, inn or training that can accommodate a large number of people, such as a house (building) intended for the residence of people, a meeting, a lecture, a party, etc. In facilities, etc. (buildings), when the speaker device 1 is installed on a wall or ceiling as a member to be attached, the thickness space required for the installation of the speaker device 1 can be reduced, so unnecessary space in the room can be deleted, Space can be used effectively. In recent years, with the widespread use of projectors and large-screen televisions, there are examples of providing rooms with audio / video equipment, while living rooms without audio / video equipment are provided. In some cases, etc. are used as theater rooms. Even in such a case, by using the speaker device 1, it is possible to easily convert a living room or the like into a theater room and to effectively use the space in the living room. In addition, as for the arrangement | positioning location of the speaker apparatus 1, the ceiling, wall, etc. (attachment member) in a living room are mentioned, for example.

  In addition, application examples of the speaker device 1 are listed. Pachinko, as a sound reproduction means to inform the user of the operating state of household appliances such as refrigerators, washing machines, bathroom water heater control panels, microwave ovens, air conditioners, watches, rice cookers, oil fan heaters, etc. As sound generating means for enhancing the effect of a gaming machine such as a slot panel or entertainment equipment, headphones, earphones, hearing aids, musical speakers, loudspeakers, studio speakers, hall speakers, karaoke speakers, etc. The apparatus 1 can be applied effectively.

  Moreover, the speaker apparatus 1 can also be attached to a predetermined attached member such as a road wall as a blocking mechanism for blocking external sound used in a road noise reduction system. Furthermore, the speaker device 1 can be used as a vibration generating device, and the speaker device 1 can be effectively used as a body sensation actuator (body sonic etc.).

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. In addition, each of the above-described embodiments can divert each other's technology as long as there is no particular contradiction or problem in its purpose and configuration. This application includes PCT / JP2008 / 051197 filed internationally on January 28, 2008, PCT / JP2008 / 068580 filed internationally on October 14, 2008, PCT / JP2008 / 068580 filed internationally on October 27, 2008. JP2008 / 069480, PCT / JP2008 / 069269 filed internationally on October 23, 2008, PCT / JP2009 / 053752 filed internationally on February 27, 2009, PCT / JP2009 / filed internationally on February 26, 2009 053592, PCT / JP2009 / 050764 filed internationally on January 20, 2009, PCT / JP2009 / 055533 filed internationally on March 19, 2009, PCT / JP2009 / 055496 filed internationally on March 19, 2009, PCT / JP2009 / 055497 filed internationally on March 19, 2009, PCT / JP2009 / 055498 filed internationally on March 19, 2009, PCT / JP2009 / 055534 filed internationally on March 19, 2009, 2009 PCT / JP2009 / 055523 filed internationally on March 19, PCT / JP2009 / 055524 filed internationally on March 19, 2009, PCT / JP2009 / 055525 filed internationally on March 19, 2009, March 2009 PCT / JP2009 / 055526 filed internationally on 19th, PCT / JP2009 / 055527, 200 filed internationally on 19th March 2009 PCT / JP2009 / 055528 filed internationally on March 19, 2009, PCT / JP2009 / 62482 filed internationally on July 9, 2009, PCT / JP2009 / 62483 filed internationally on July 9, 2009, 2009 PCT / JP2009 / 62484 filed internationally on July 9, PCT / JP2009 / 62477 filed internationally on July 9, 2009, PCT / JP2009 / 62478 filed internationally on July 9, 2009, July 2009 PCT / JP2009 / 62479 filed internationally on 9th, PCT / JP2009 / 62480 filed internationally on 9th July 2009, PCT / JP2009 / 62481 filed internationally on 9th July 2009, 29th July 2009 PCT / JP2009 / 63525 filed internationally on PCT / JP2009 / 63526 filed internationally on July 29, 2009, PCT / JP2009 / 62527 filed internationally on July 29, 2009, Japan on October 15, 2009 All the contents described in Japanese Patent Application No. 2009/238688 and PCT / JP2009 / 071639 filed internationally on December 25, 2009 are incorporated in this application.

A1 (A1a, A1b, A1c): Vibration system movable member for speaker,
A2: Voice coil,
A2a: voice coil support,
A3 (A3a, A3b): Link part,
A4: Joint part,
A5: Fiber,
A6: Resin,
A7: Vibration direction conversion unit,
A8: Diaphragm,
A9 (A9a, A9b): connecting part,
A10: holding part,
A11: Stationary part,
A12: Frame part,
A13: Cross-linking part P: Refraction or rotation axis,

Claims (41)

A vibration system movable member for a speaker that can be operated in accordance with vibration of a voice coil,
A rigid link portion that changes an angle in accordance with vibration of the voice coil, and a joint portion provided at an end portion of the link portion so as to enable an angle change of the link portion;
The link part and the joint part are composed of a plurality of fibers and a resin that restrains the fibers,
The speaker vibration system movable member according to claim 1, wherein the fiber is oriented in a direction transverse to a refraction or rotation axis of the joint. A vibration direction conversion unit that converts the vibration of the voice coil into different directions to vibrate the diaphragm,
The said vibration direction conversion part is provided with the said link part and the said joint part, The vibration system movable member for speakers of Claim 1 characterized by the above-mentioned. A holding part that holds the voice coil while restricting the vibration of the voice coil in a uniaxial direction is provided.
The vibration system movable member for a speaker according to claim 1, wherein the holding portion includes the link portion and the joint portion.   The vibration system movable member for a speaker according to any one of claims 1 to 3, wherein a length of the fiber is substantially the same or larger than a width of the joint portion in the orientation direction. The width of the joint part in the direction of the orientation is smaller than the length of the link part in the longitudinal direction,
The vibration system movable member for a speaker according to claim 4, wherein a thickness of the joint portion is smaller than a thickness of the link portion.   The vibration system movable member for a speaker according to claim 5, wherein a width of the joint portion in the orientation direction is smaller than a thickness of the link portion. The joint is formed in a linear shape,
The vibration system movable member for a speaker according to claim 6, wherein the link portion has bending rigidity around a direction along the joint portion.   The vibration system movable member for a speaker according to claim 7, wherein the bending rigidity of the link portion is substantially larger than the bending rigidity of a comparative link portion formed of only the resin. The vibration direction converter is
A diaphragm side coupling portion coupled to the diaphragm directly or via another member;
A voice coil side coupling portion coupled to the voice coil directly or via another member;
The one end is connected to the diaphragm side connecting part via the joint part, and the other end is provided with the link part connected to the voice coil side connecting part via the joint part. The vibration system movable member for a speaker as described. The vibration direction converter is
The link portion is a first link portion, one end is connected to the intermediate position of the first link portion via the joint portion, and the other end supports the voice coil directly or via another member. The speaker vibration system movable member according to claim 9, further comprising: a second link portion connected to the portion via the joint portion. The holding part is
A link part on the voice coil side connected to the voice coil directly or via another member, and a link part on the stationary part side connected to the stationary part supporting the voice coil directly or via another member. ,
4. The vibration system movable member for a speaker according to claim 3, wherein the joint portion is disposed between the link portion on the voice coil side and the link portion on the stationary portion side.   9. The loudspeaker vibration system movable member according to claim 8, wherein internal loss is larger than that of the comparative loudspeaker vibration system movable member formed substantially only of the resin.   The vibration system movable member for a speaker according to claim 8, wherein the joint portion includes a nonwoven fabric composed of the fibers.   9. The speaker vibration system movable member according to claim 8, wherein Young's modulus is larger than that of a comparative speaker vibration system movable member substantially composed of only the resin.   The vibration system movable member for a speaker according to claim 8, wherein the fibers are dispersed in the resin.   The vibration system movable member for a speaker according to claim 8, wherein the fiber is made of an aramid resin.   The vibration system movable member for a speaker according to claim 8, wherein the fiber is shorter than a length of the link portion in a longitudinal direction.   The speaker unit according to claim 11, further comprising a frame unit that supports the plurality of holding units, wherein the plurality of holding units supported by the frame unit are arranged side by side along a vibration direction of a voice coil. Vibration system drive member.   A voice coil support part for supporting the voice coil is arranged between the plurality of holding parts arranged side by side, and the holding part and the voice coil support part are connected via the joint part. The speaker vibration system driving member according to claim 18, wherein:   20. The vibration system movable member for a speaker according to claim 19, wherein an angle formed by the link part on the voice coil side and the link part on the stationary part side is changed by vibration of the voice coil.   21. The vibration system movable member for a speaker according to claim 20, wherein the link part on the stationary part side is connected to the stationary part via the joint part. The frame portion includes a bridging portion that supports the holding portion,
The bridging portion extends along a direction passing through the formation surface of the joint portion,
The vibration system movable member for a speaker according to claim 21, wherein the joint portion is disposed between the bridging portion and the stationary portion, and between the bridging portion and the holding portion.   The vibration system movable member for a speaker according to claim 22, wherein the frame part and the bridging part have rigidity.   The vibration system movable member for a speaker according to claim 23, wherein the frame portion and the holding portion are made of substantially the same material. A diaphragm,
A stationary portion that supports the diaphragm in a freely vibrating manner;
A drive unit that applies vibration to the diaphragm,
The drive unit is
A voice coil that vibrates in a direction different from the vibration of the diaphragm by an audio signal;
A vibration direction converter for changing the direction of vibration of the voice coil to vibrate the diaphragm;
A holding part that holds the voice coil in the stationary part while restricting vibration of the voice coil in a uniaxial direction;
The vibration direction conversion part and the holding part are a rigid link part that changes an angle in accordance with the vibration of the voice coil, and a joint part that is provided at an end of the link part so as to enable an angle change of the link part. And
The link part and the joint part are formed of a plurality of fibers and a resin that restrains the fibers,
The speaker device according to claim 1, wherein the orientation of the fibers is along a direction crossing a refraction or rotation axis of the joint.   The speaker device according to claim 25, wherein the driving unit includes a magnetic circuit including a magnet and a yoke.   26. The speaker device according to claim 25, wherein the vibration direction conversion unit includes a link mechanism that converts the angle of a link unit formed between the voice coil and the diaphragm.   The positions of both ends of the voice coil side of the vibration direction conversion unit and the end of the voice coil on the side of the vibration direction conversion unit are differently connected along the vibration direction of the diaphragm. The speaker device according to claim 25, further comprising a connecting portion. The vibration direction conversion unit is connected to a mounted member including the diaphragm and the voice coil, and includes a joint portion close to the mounted member,
26. The speaker device according to claim 25, wherein a contact avoiding portion for avoiding contact with the joint portion is formed on a surface side of the attached member adjacent to the joint portion. The vibration direction conversion unit is connected to a mounted member including the diaphragm and the voice coil, and includes a joint portion close to the mounted member,
26. The housing part of the adhesive member which joins the said vibration direction conversion part and the said to-be-attached member is formed in the surface side of the to-be-attached member facing the said joint part, It is characterized by the above-mentioned. Speaker device. The vibration direction conversion portion includes a rigid link portion that is obliquely installed so as to be capable of changing an angle between the voice coil and the diaphragm, and joint portions formed at both ends of the link portion,
26. The speaker device according to claim 25, wherein the joint portion is formed of a continuously-refractive member that is continuous at both side portions straddling the joint portion. The voice coil includes a conductive member that is planar and annularly wound, and a rigid base that supports the conductive member,
26. The speaker device according to claim 25, wherein a conductive layer is patterned on an outer surface of the conductive member in the base.   26. The speaker device according to claim 25, wherein a pair of the conductive layers are provided so as to surround the conductive member, and function as a relay line for inputting an audio signal to the conductive member.   An electronic apparatus comprising the speaker device according to claim 25.   An automobile comprising the speaker device according to claim 25.   A building comprising the speaker device according to claim 25. A vibration system movable member for a speaker that can be operated in accordance with vibration of a voice coil,
A rigid link portion that changes an angle in accordance with vibration of the voice coil, and a joint portion provided at an end portion of the link portion so as to enable an angle change of the link portion;
The link part is composed of a plurality of fibers and a resin that binds the fibers,
The joint portion is substantially composed of only fibers,
The speaker vibration system movable member according to claim 1, wherein the fiber is oriented in a direction transverse to a refraction or rotation axis of the joint. A first edge having a curved portion;
A second edge comprising a pair of the link portions and the joint portion disposed between the pair of link portions;
The vibration system movable member for a speaker according to claim 1, wherein the first edge and the second edge are arranged to face each other. The speaker vibration system movable member is a damper,
An inner peripheral frame portion, an outer peripheral frame portion, and an arm portion connecting the inner peripheral frame portion and the outer peripheral frame portion;
The arm part includes an arm part body and an end part constituted by the link part, and the joint part provided between the arm part body and the end part,
The arm part body extends along the inner peripheral frame part or the outer peripheral frame part,
The end of the arm extends in a direction intersecting the arm main body,
The vibration system movable member for a speaker according to claim 1, wherein the joint portion extends along an end portion of the arm portion. The speaker vibration system movable member is a damper,
A plate portion having an outer peripheral portion and extending toward the inner side of the outer peripheral portion;
A projection portion that is provided inside the plate portion and protrudes in a direction intersecting the direction in which the plate portion extends;
The plate portion includes a movable portion constituting the outer peripheral portion, and the joint portion provided between the movable portion and the protruding portion, and the movable portion and the protruding portion are configured by the link portion. The vibration system movable member for a speaker according to claim 1, wherein: The speaker vibration system movable member is an edge,
The vibration system movable for a speaker according to claim 1, further comprising a plurality of the link portions and the joint portion disposed between a pair of the link portions disposed along a radial direction or a circumferential direction. Element.

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