JP5409509B2 - In-vehicle speaker device - Google Patents

Description

  The present invention relates to a vehicle-mounted speaker device, and more particularly to a vehicle-mounted speaker device that can improve the rigidity of an interior material and can efficiently transmit vibration of a composite speaker to the interior material.

  Conventionally, as an in-vehicle speaker device, a device in which a speaker is attached to a ceiling base material of a vehicle is generally known (see, for example, Patent Documents 1 and 2). Further, as another in-vehicle speaker device, a device is known in which a support member for improving the ceiling rigidity is attached to the surface of the ceiling base material outside the passenger compartment, and the speaker is supported by this support member. (For example, refer to Patent Documents 3 and 4).

JP 2005-22546 A JP 2009-173071 A JP-T-2001-513722 JP-T-2001-513723

  In recent years, a composite speaker having a speaker unit for outputting a sound in the middle and high range and an actuator unit for outputting a sound in the low range has been developed. When a vehicle-mounted speaker is configured using this composite speaker, it is conceivable to output a low-frequency sound using a vehicle interior material (for example, a ceiling base material, a door trim, etc.) as a diaphragm. At this time, it is necessary to appropriately increase the rigidity of the interior material and efficiently transmit the vibration of the actuator portion of the composite speaker to the interior material. Therefore, at present, the appearance of an in-vehicle speaker device that satisfies such a demand is desired. Note that Patent Documents 3 and 4 describe a support member for increasing the ceiling rigidity, but do not disclose any technique for efficiently transmitting the vibration of the speaker to the ceiling base material.

  The present invention has been made in view of the above situation, and provides an in-vehicle speaker device that can improve the rigidity of an interior material and can efficiently transmit vibration of a composite speaker to the interior material. Objective.

In order to solve the above-mentioned problem, the invention according to claim 1 is an in-vehicle speaker device attached to an interior material of a vehicle, wherein a speaker unit for outputting a mid-high range sound and a low-frequency range sound are provided. A composite speaker having an actuator unit for outputting; and a vibration member attached to the actuator unit to support the composite speaker and to be attached to the interior material, wherein the vibration member is attached to the interior material In the composite speaker, the speaker grill is attached to the interior material so that the speaker portion is disposed on the vehicle interior side and the actuator portion is disposed on the vehicle exterior side, and covers the vehicle interior side of the speaker portion. further comprising, said speaker grill, this having a pressing portion that presses the flange portion constituting the actuator unit to the vibration member The the gist.
In order to solve the above problem, an invention according to claim 2 is an in-vehicle speaker device attached to an interior material of a vehicle, wherein a speaker unit for outputting a mid-high range sound and a low-frequency range sound are provided. A composite speaker having an actuator unit for outputting; and a vibration member attached to the actuator unit to support the composite speaker and to be attached to the interior material, wherein the vibration member is attached to the interior material In the composite speaker, the speaker grill is attached to the interior material so that the speaker portion is disposed on the vehicle interior side and the actuator portion is disposed on the vehicle exterior side, and covers the vehicle interior side of the speaker portion. The speaker grill is further provided in a space that is not occupied by the composite speaker in an arrangement space of the composite speaker formed in the interior material. And summarized in that with a penetration portion for entering.
A third aspect of the present invention is characterized in that, in the first or second aspect, the composite speaker is arranged such that the actuator portion is separated from the interior material.
According to a fourth aspect of the present invention, in any one of the first to third aspects, the vibration member is attached to a front surface side of the interior material on the outside of the passenger compartment, and the speaker grill is composed of the interior material. The interior material is sandwiched between the vibrating member and the speaker grille, and is attached to the front side of the vehicle interior side.

According to the vehicle-mounted speaker device of the present invention, the composite speaker that is provided with the composite speaker and the vibration member and is supported by the vibration member in a state where the vibration member is attached to the interior material is disposed on the vehicle interior side. In addition, since the actuator unit is disposed outside the vehicle compartment, the mid-high range sound is output from the speaker unit of the composite speaker to the vehicle interior, and the vibration of the actuator unit of the composite speaker is amplified by the vibration member. Is transmitted to the interior material, and the sound of the low frequency range is output to the vehicle interior by the vibration of the interior material. Therefore, the vibration member can improve the rigidity of the interior material, and can efficiently transmit the vibration of the actuator portion of the composite speaker to the interior material. As a result, high-quality sound can be output using the composite speaker.
Further, when the speaker grill is further provided and the speaker grill has a pressing portion, the flange portion constituting the actuator portion is pressed toward the vibration member by the pressing portion of the speaker grill. Therefore, the vibration of the actuator part of the composite speaker can be more efficiently transmitted to the vibration member using the speaker grill.
Further, when the speaker grill is further provided and the speaker grill has an entry portion, the entry portion of the speaker grill enters a space that is not occupied by the composite speaker in the arrangement space of the composite speakers formed in the interior material. For this reason, it is possible to reduce the excess gap in the arrangement space of the composite speaker and prevent the sound from wrapping around. As a result, the vibration of the actuator portion of the composite speaker can be more efficiently transmitted to the vibration member using the speaker grill.
Further, the composite speaker can vibrate relatively freely when the actuator portion is arranged so as to be separated from the interior material. And most of the vibration of this actuator part is not transmitted directly to the interior material, but is transmitted to the vibration member and amplified before being transmitted to the interior material. Therefore, the vibration of the actuator portion of the composite speaker can be more efficiently transmitted to the interior material. Further, since the composite speaker can be easily detached from the interior material without removing the interior material from the vehicle, the maintainability of the composite speaker is excellent.
Further, the vibration member is attached to a surface side of the interior material on the outer side of the vehicle interior, and the speaker grille is attached to a surface side of the interior material on the interior side of the vehicle interior, and between the vibration member and the speaker grille. When the interior material is sandwiched between the two, the vibration of the actuator portion of the composite speaker can be more efficiently transmitted to the interior material.

The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
It is a longitudinal cross-sectional view of the vehicle-mounted speaker apparatus which concerns on a reference example . It is a perspective view of the compound speaker and speaker grill concerning a reference example . It is a schematic diagram of a vehicle provided with the said vehicle-mounted speaker. It is an end view of the composite speaker which concerns on a reference example . It is a disassembled perspective view of the said composite speaker. It is a longitudinal cross-sectional view of the said composite speaker. It is a VII arrow line view in the state where the diaphragm of Drawing 6 was removed. It is a longitudinal cross-sectional view of the vehicle-mounted speaker apparatus which concerns on a comparative example. It is a graph which shows the result of the sound test of the vehicle-mounted speaker apparatus which concerns on a reference example, an Example, and a comparative example. 1 is a longitudinal sectional view of a vehicle-mounted speaker device according to Embodiment 1. FIG. 1 is a perspective view of a composite speaker and a speaker grill according to Embodiment 1. FIG. It is a longitudinal cross-sectional view of the vehicle-mounted speaker apparatus which concerns on Example 2. FIG. 6 is a longitudinal sectional view of a vehicle-mounted speaker device according to Embodiment 3. FIG. 6 is a perspective view of a vibrating member according to Embodiment 3. FIG. It is a longitudinal cross-sectional view of the vehicle-mounted speaker apparatus of another form.

  The items shown here are exemplary and illustrative of the embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

1. In-vehicle speaker device Embodiment 1 The in-vehicle speaker device according to the present invention is an in-vehicle speaker device that is attached to an interior material of a vehicle, and is a composite having a speaker unit for outputting middle and high range sounds and an actuator unit for outputting low range sounds. A speaker and a vibration member attached to the interior material to support the composite speaker with the actuator unit attached, and the speaker unit is disposed on the vehicle interior side with the vibration member attached to the interior material The actuator unit is arranged outside the passenger compartment (see, for example, FIG. 1).

  Embodiment 1 As the in-vehicle speaker device, for example, the composite speaker may have a form (for example, see FIG. 1 and the like) in which the actuator unit is disposed so as to be separated from the interior material. As this composite speaker, for example, (1) a mode in which the actuator unit is disposed in a layout space of the composite speaker formed in the interior material and is separated from the interior material (for example, see FIG. 1 and the like), (2) A configuration (for example, see FIG. 12 and the like) in which the actuator unit is arranged in the arrangement space of the composite speaker formed on the vibration member so as to be separated from the interior material can be given.

  In the embodiments (1) and (2), for example, the composite speaker is arranged such that the end surface on the vehicle interior side of the speaker portion is positioned on the vehicle exterior side from the end surface (design surface) of the interior material on the vehicle interior side. (See, for example, FIG. 12). Thereby, a composite speaker can be arrange | positioned without projecting to the vehicle interior side from the end surface of the vehicle interior side of interior material, and the design property of the vehicle interior side (design surface side) of interior material can be improved.

  Embodiment 1 As an in-vehicle speaker device, for example, a form (for example, see FIG. 1 and the like) further including a speaker grill attached to an interior material so as to cover the interior side of the speaker unit can be exemplified. As this speaker grille, for example, (1) a form having a pressing portion that presses the flange portion constituting the actuator portion toward the vibration member, and (2) a composite in the arrangement space of the composite speaker formed in the interior material One type or a combination of two or more types of forms having an entry portion that enters a space not occupied by the speaker can be mentioned.

  The said press part and / or the said approach part can be comprised by the protrusion part which protrudes outward from the attachment surface side with respect to the interior material of a speaker grille, for example. In particular, it is preferable to use the pressing portion and the entry portion together by the protruding portion. Moreover, the said approach part can fill 70-100% (preferably 80-100%, especially 90-100%) of the space which the said composite speaker does not occupy, for example. Furthermore, in the above-described forms (1) and (2), for example, the vibration member may be attached to the surface side of the interior material on the vehicle exterior side, and the speaker grill may be attached to the surface side of the interior material on the vehicle interior side. it can.

  Embodiment 1 As an in-vehicle speaker device, for example, the above-mentioned composite speaker may be opposed to one group of magnets arranged in a row so that two adjacent magnetic poles are opposite to each other and one magnetic pole of the group of magnets. Magnetic flux generated between the adjacent magnets and between the magnet and the yoke on the surface of the flat diaphragm arranged along the arrangement direction of the magnets and on the surface of the diaphragm opposite to the magnetic poles A plurality of voice coils formed so as to be linked to each other and the other of the pair of magnetic poles of the magnet, and a pair of side edges along the arrangement direction of the magnet are bent in a direction toward the diaphragm The yoke, the diaphragm that supports the diaphragm at the periphery of the diaphragm, the frame that accommodates the magnet and the yoke, the actuator unit to which the frame is fixed, and the actuator unit and the yoke are provided. Comprising a sexual member, the speaker unit, the group of magnets include constructed form a diaphragm and a voice coil (e.g., see FIG. 4).

  According to the above composite speaker, since the magnet is attached to the actuator portion via the yoke and the elastic member, the diaphragm and the diaphragm are caused by the interaction between the magnetic field generated by the voice coil and the magnetic field generated by inputting an electric signal. The magnet vibrates, and this converts the electrical signal into sound. Here, among the vibrations generated by the magnet, high-frequency vibrations are absorbed by the elastic member, while low-frequency vibrations are transmitted to the actuator unit via the elastic member. In addition, vibrations generated in the diaphragm are transmitted at a low frequency to the actuator unit via the frame. As a result, the mid-high range sound is output forward from the diaphragm constituting the speaker unit, and the low-frequency range sound is output via the actuator unit.

  The elastic member is selected from, for example, an elastic material molded body obtained by molding an elastic material selected from thermoplastic elastomer, vulcanized rubber, and soft resin, an elastic material foam obtained by foaming an elastic material, and a leaf spring. be able to. As a result, among the vibrations generated in the magnet, those having a high frequency are particularly effectively absorbed by the elastic member, and those having a low frequency are efficiently transmitted to the actuator unit by the elastic member.

  Each of the diaphragm and the frame can be made of, for example, an aluminum alloy. As a result, heat generated by inputting a sound signal to the voice coil is transmitted from the voice coil to the diaphragm and from the diaphragm to the frame to be dissipated.

  Examples of the voice coil include (1) a form formed for each magnet, and (2) a form formed for every two magnets. According to the form (1), the sound quality in the high sound range is excellent. Moreover, according to the above (2), it can be made simple and inexpensive.

  Embodiment 1 As an in-vehicle speaker device, for example, the actuator unit has a flat plate portion arranged in parallel so as to face a flat plate-like vibration plate constituting the speaker portion, and one surface of the actuator portion vibrates. It can be attached to the diaphragm so as to contact the flat portion of the member. Thereby, the vibration of the actuator part of the composite speaker can be more efficiently transmitted to the vibration member.

Hereinafter, the present invention will be specifically described with reference to Examples and Examples 1 to 3 with reference to the drawings. In this reference example and Examples 1 to 3 , as the “vehicle speaker device” according to the present invention, as shown in FIG. 3, a ceiling base disposed facing the vehicle interior side of the roof panel 9 of the vehicle. An in-vehicle speaker device attached to the material 20 (illustrated as “interior material” according to the present invention) is illustrated.

< Reference example >
(1) Configuration of In-Vehicle Speaker Device As shown in FIG. 1 and FIG. 2, the in-vehicle speaker device 11 according to this reference example outputs a speaker unit 12 for outputting mid-high range sounds and low-frequency range sounds. A composite speaker 14 having an actuator unit 13 for outputting, and a plate-like resin vibration attached to the actuator unit 13 to support the composite speaker 14 and to be attached to the surface side of the vehicle interior outside R2 of the ceiling base material 20 The member 15 and the speaker grille 16 attached to the surface side of the vehicle interior side R1 of the ceiling base material 20 so as to cover the front side (vehicle interior side R1) of the speaker unit 12 are provided.

  The actuator part 13 is formed in a flat plate shape so as to be arranged opposite to the flat diaphragm 1 constituting the speaker unit 12. The actuator portion 13 is attached to the vibration member 15 so that one surface thereof contacts the flat portion of the vibration member 15. The speaker grill 16 has a plurality of through holes 17 for emitting sound.

  In the state where the vibration member 15 is attached to the ceiling base material 20, the composite speaker 14 is arranged such that the speaker unit 12 faces the vehicle interior side R 1 and the actuator unit 13 faces the vehicle interior outside R 2. The part 13 is disposed in a through hole 19 (illustrated as “an arrangement space for a composite speaker” according to the present invention) formed in the ceiling base material 20 so as to be separated from the ceiling base material 20.

In this reference example, the mounting form of the composite speaker 14 to the vibration member 15, the mounting form of the vibration member 15 to the ceiling base material 20, and the mounting form of the speaker grill 16 to the ceiling base material 29 are, for example, elastic hooks One type or a combination of two or more types of locking, screwing, screwing, adhesion, etc. can be mentioned. Moreover, in this reference example , a resin sheet, a resin foam, or a fiber material, and those composites are used as the said ceiling base material 20, and the skin material 18 is laminated | stacked on the surface side of the vehicle interior side. Shall be adopted.

As shown in FIGS. 4 to 7, the composite speaker 14 includes a sheet-like diaphragm 1 having a rectangular planar shape whose long side extends along the arrangement direction of magnets 2 described later, and magnetic poles 2 </ b> S and 2 </ b> N are diaphragms. A group of magnets 2 arranged in a row and arranged in the direction in which the magnets 2 are arranged so that the two adjacent magnetic poles 2S and 2N are opposite to each other and opposite to one surface of 1. At the same time, the magnetic pole 2S of the S pole is opposed to the magnetic pole 2S of the diaphragm 1 so as to face the magnet 2 facing the diaphragm 1 side, in other words, to face every other magnet 2. A voice coil 3 provided on the side surface, a yoke 4 disposed so as to contact the magnetic pole 2N (2S) on the side of the magnet 2 not facing the diaphragm 1, and a peripheral portion of the diaphragm 1 And supporting the diaphragm 1 with the magnet 2 and the yoke 4 Having a frame 5 which volumes of the plate-shaped actuator unit 13 that frame 5 is fixed. An elastic member 7 is interposed between the yoke 4 and the actuator portion 13. In the reference example , the speaker unit 12 includes the magnet 2, the diaphragm 1, the voice coil 3, and the like.

  Among the magnets 2, the magnetic pole 2 </ b> S facing the diaphragm 1, in other words, facing the voice coil 3, the iron plate 8 is inserted between the yoke 4 and raised. ing.

  The yoke 4 is made of a ferromagnetic material, and has both side edges 4 </ b> A bent toward the diaphragm 1 and has a bowl-like shape for accommodating the magnet 2. The yoke 4 and the magnet 2 and the voice coil 3 have a non-woven fabric 10 so that the magnetic pole 2S (2N) of the magnet 2 does not directly hit the voice coil 3 when the magnet 2 and the diaphragm 1 vibrate. Has been inserted.

(2) Operation of In-Vehicle Speaker Device Next, the operation of the in-vehicle speaker device 11 having the above configuration will be described. According to the above-described composite speaker 14, when an electric signal is input to the voice coil 3, a variable magnetic field is generated in the voice coil 3, and this variable magnetic field interacts with the magnetic field of the magnet 2 to vibrate the diaphragm 1. Here, since the magnet 2 is not directly fixed to the actuator unit 13 but is attached via the elastic member 7, the magnet 2 vibrates simultaneously with the vibration plate 1. As a result, the electric signal is converted into sound.

  Among the sounds generated by the diaphragm 1, the mid-high range sound is directly propagated forward, in other words, upward (inside the vehicle compartment R 1) in FIG. 4, as indicated by an arrow A in FIG. And the sound of middle and high range is output from the speaker unit 12 of the composite speaker 14 into the vehicle interior. On the other hand, among the sounds generated by the diaphragm 1, the low-frequency sound is propagated to the actuator unit 13 through the frame 5 as indicated by an arrow B in FIG. Further, among the vibrations of the magnet 2, high-frequency vibrations are absorbed by the elastic member 7 and are not transmitted to the actuator unit 13, but low-frequency vibrations are rearward, in other words, the same as shown by an arrow C in FIG. The actuator part 13 vibrates by being propagated to the actuator part 13 via the elastic member 7 toward the lower side in the figure (vehicle compartment outer side R2). The vibration of the actuator unit 13 is transmitted to the ceiling base material 20 while being amplified by the vibration member 15, and a low-frequency sound is output to the vehicle interior by the vibration of the ceiling base material 20.

(3) Effect of Reference Example As described above, according to the vehicle-mounted speaker device 11 of the present reference example , the composite speaker 14 and the vibration member 15 are provided, and the vibration member 15 is attached to the ceiling base material 20. Since the composite speaker 14 supported by the vibration member 15 is arranged so that the speaker unit 12 faces the vehicle interior side R1, and the actuator unit 13 faces the vehicle interior outside R2, the middle speaker is connected to the speaker unit 12 of the composite speaker 14. And the vibration of the actuator portion 13 of the composite speaker 14 are amplified by the vibration member 15 and then transmitted to the ceiling base material 20, and the sound of the low frequency range is generated by the vibration of the ceiling base material 20. Output to the passenger compartment. Therefore, the vibration member 15 can improve the rigidity of the ceiling base material 20 and can efficiently transmit the vibration of the actuator portion 13 of the composite speaker 14 to the ceiling base material 20. As a result, a high-quality sound can be output using the composite speaker 14. Further, since the single composite speaker 14 can faithfully reproduce both high and low sounds, it is not necessary to separately provide a low sound reproduction speaker such as a woofer. Further, since the diaphragm 1 is flat and not cone-shaped, it can be made much thinner than a cone-type speaker.

In the present reference example , since the composite speaker 14 is arranged so that the actuator unit 13 is separated from the ceiling base material 20, the actuator unit 13 can vibrate relatively freely. Then, most of the vibration of the actuator unit 13 is not transmitted directly to the ceiling base material 20 but is transmitted to the vibration member 15 and amplified before being transmitted to the ceiling base material 20. Therefore, the vibration of the actuator portion 13 of the composite speaker 14 can be more efficiently transmitted to the ceiling base material 20. Further, as indicated by phantom lines in FIG. 1, since the composite speaker 14 can be easily detached from the ceiling base material 20 without removing the ceiling base material 20 from the vehicle, the maintainability of the composite speaker 14 is excellent.

Further, in this reference example , the end of the vibration member 15 is attached to the surface side of the ceiling base material 20 outside the passenger compartment, and the end of the speaker grill 22 is attached to the surface side of the ceiling base material 20 inside the passenger compartment. Since the ceiling base material 20 is sandwiched between the vibration member 15 and the speaker grille 22, the vibration of the actuator unit 13 of the composite speaker 14 can be transmitted to the ceiling base material 20 more efficiently.

Furthermore, in this reference example , the actuator unit 13 is formed in a flat plate shape so as to be arranged in parallel with the flat plate-like diaphragm 1 constituting the speaker unit 12, and one surface of the actuator unit 13 is Since the vibration member 15 is attached to the vibration member 15 so as to be in contact with the planar portion of the vibration member 15, the vibration of the actuator portion 13 of the composite speaker 14 can be transmitted to the vibration member 15 more efficiently.

(4) where the sound test results of Reference Example, to compare the sound test results of the vehicle-mounted speaker apparatus 111 of the comparative example vehicle-mounted speaker apparatus 11 of the reference example. As the sound test, the speaker test method of JISC5532 was adopted. Further, as shown in FIG. 8, the in-vehicle speaker device 111 according to the comparative example directly connects the actuator unit 13 of the composite speaker 14 without using the vibration member 15 constituting the in-vehicle speaker device 11 of the reference example. The thing attached to the surface side of the vehicle interior outer side of the ceiling base material 20 was employ | adopted.

As shown in FIG. 9, the vehicle-mounted speaker device 11 of the reference example showed a higher sound pressure in a low-frequency sound (sound of frequency 25 to 150 Hz) than the vehicle-mounted speaker device 111 of the comparative example. Therefore, the vibration amplification effect by the vibration member 15 was confirmed.

<Example 1 >
Next, the configuration of the vehicle-mounted speaker apparatus according to the first embodiment. In the in-vehicle speaker device according to the first embodiment, the same reference numerals are given to substantially the same components as the in-vehicle speaker device 11 according to the reference example , and detailed description thereof will be omitted. To do.

(1) Configuration of In-Vehicle Speaker Device As shown in FIGS. 10 and 11, the in-vehicle speaker device 21 according to this embodiment includes a composite speaker 14, a vibration member 15, and a front side of the speaker unit 12 (vehicle compartment). And a speaker grille 22 attached to the surface side of the vehicle interior side R1 of the ceiling base material 20 so as to cover the inner side R1).

  The speaker grille 22 is exemplified as a plurality of (two in the drawing) protruding portions 23 (“pressing portion” and “entrance portion” according to the present invention) protruding outward from the mounting surface side with respect to the ceiling base material 20. ) Is provided. In a state where the speaker grill 22 and the vibration member 15 are attached to the ceiling base material 20, the projecting portion 23 of the speaker grill 22 presses the flange portion 13 a of the actuator portion 13 toward the vibration member 15, and Of the 20 through holes 19, the composite speaker 14 enters a space not occupied and fills most of the space. Further, the speaker grill 22 is formed with a plurality of through holes 24 for emitting sound.

(2) Action / Effect of In-Vehicle Speaker Device According to the in-vehicle speaker device 21 having the above-described configuration, in addition to exhibiting substantially the same operation / effect as the in-vehicle speaker device 11 according to the reference example , Since the projecting portion 23 exerts a pressing function of pressing the flange portion 13a constituting the actuator portion 13 toward the vibration member 15, the vibration of the actuator portion 13 of the composite speaker 14 is further efficiently applied to the vibration member 15. Can be communicated to. Further, since the projecting portion 23 of the speaker grille 22 exerts the space filling function of filling the space not occupied by the composite speaker 14 among the through holes 19 of the ceiling base material 20, an excess gap is formed in the through holes 19. It can reduce and prevent sound wraparound. As a result, the vibration of the actuator portion 13 of the composite speaker 14 can be more efficiently transmitted to the vibration member 15.

(3) Results of Sound Test of Example 1 Here, the results of sound tests of the in-vehicle speaker device 21 of Example 1 and the in-vehicle speaker device 111 of the comparative example are compared. As shown in FIG. 9, the in-vehicle speaker device 21 of Example 1 shows a high sound pressure with a low-frequency sound (frequency 25 to 150 Hz) and a high sound pressure compared to the in-vehicle speaker device 111 of the comparative example. High sound pressure was shown in the sound range (sound with a frequency of 3000 to 7000 Hz). Therefore, the vibration amplification effect by the vibration member 15 was confirmed, and the vibration amplification effect and the sound wraparound prevention effect by the protruding portion 23 of the speaker grill 22 were confirmed.

<Example 2 >
Next, the configuration of the in-vehicle speaker device according to the second embodiment will be described. In the in-vehicle speaker device according to the second embodiment, substantially the same components as in the in-vehicle speaker device 11 according to the above reference example are denoted by the same reference numerals, and detailed description thereof is omitted. The grill is explained in detail.

(1) Configuration of In-Vehicle Speaker Device As shown in FIG. 12, the in-vehicle speaker device 31 according to this embodiment supports the composite speaker 14 with the composite speaker 14 and the actuator unit 13 attached thereto, and a ceiling base material. The resin vibration member 32 attached to the front surface side of the vehicle interior outside R2 and the front surface side (vehicle interior side R1) of the speaker unit 12 are attached to the surface side of the vehicle interior side R1 of the ceiling base material 20 Speaker grille 33.

  On the attachment surface side of the vibration member 32 with respect to the ceiling base material 20, an accommodation recess 34 (composition space for the composite speaker) for housing the composite speaker 14 is formed. The actuator unit 13 is attached to the vibration member 32 so that one surface of the actuator unit 13 is in contact with the bottom surface of the storage recess 34. In a state where the vibration member 32 is attached to the ceiling base material 20, the composite speaker 14 is disposed such that the actuator unit 13 is disposed in the housing recess 34 of the vibration member 32 and is separated from the ceiling base material 20. In addition, the composite speaker 14 is disposed such that the end surface 12a on the vehicle interior side R1 of the speaker unit 12 is positioned on the vehicle interior outside R2 from the end surface 20a (design surface) on the vehicle interior side R1 of the ceiling base material 20.

  The speaker grille 33 is exemplified as a plurality of (two in the drawing) protruding portions 35 (“pressing portion” and “entrance portion” according to the present invention) protruding outward from the mounting surface side with respect to the ceiling base material 20. ) Is provided. In a state where the speaker grill 33 and the vibration member 32 are attached to the ceiling base material 20, the projecting portion 35 of the speaker grill 33 presses the flange portion 13 a of the actuator portion 13 toward the vibration member 32, and Of the through holes 19 of the 20 and the housing recesses 34 of the vibration member 32, they enter a space not occupied by the composite speaker 14 and fill most of the space. The speaker grill 33 is formed with a plurality of through holes 36 for emitting sound.

(2) Action / Effect of In-Vehicle Speaker Device According to the in-vehicle speaker device 31 having the above-described configuration, in addition to exhibiting substantially the same operation / effect as the in-vehicle speaker device 11 according to the reference example , Since the projecting portion 35 exerts the pressing function of pressing the flange portion 13a constituting the actuator portion 13 toward the vibration member 32, the vibration of the actuator portion 13 of the composite speaker 14 is further efficiently applied to the vibration member 32. Can be communicated to. In addition, the projecting portion 35 of the speaker grille 33 exerts a space filling function of filling the space not occupied by the composite speaker 14 in the through hole 19 of the ceiling base material 20 and the housing recess 34 of the vibration member 32. The excess clearance can be reduced by the through hole 19 and the storage recess 34 to prevent the sound from wrapping around. As a result, the vibration of the actuator portion 13 of the composite speaker 14 can be more efficiently transmitted to the vibration member 32.

In the second embodiment, the composite speaker 14 is disposed so as not to protrude from the end surface 20a on the vehicle interior side R1 of the ceiling base material 20 to the vehicle interior side R1. The thickness of the portion protruding to the inner side R1 can be made relatively small, and the design property on the vehicle interior side (design surface side) of the ceiling base material 20 can be improved.

<Example 3 >
Next, the configuration of the in-vehicle speaker device according to the third embodiment will be described. In the in-vehicle speaker device according to the third embodiment, substantially the same components as in the in-vehicle speaker device 11 according to the above reference example are denoted by the same reference numerals, and detailed description thereof is omitted. The grill is explained in detail.

(1) Configuration of In-Vehicle Speaker Device As shown in FIGS. 13 and 14, the in-vehicle speaker device 41 according to this embodiment supports the composite speaker 14 with the composite speaker 14 and the actuator unit 13 attached thereto. The surface of the vehicle interior side R1 of the ceiling base material 20 so as to cover the resin vibration member 42 attached to the surface side of the vehicle interior outside R2 of the ceiling base material 20 and the front surface side (vehicle interior side R1) of the speaker unit 12. And a speaker grille 43 attached to the side.

  The vibration member 42 includes a flat plate portion 42a to which the actuator portion 13 is attached so that one surface of the actuator portion 13 contacts, a rising portion 42b that rises from both side edges of the flat plate portion 42a, and a lateral side from each rising portion 42b. And a flange portion 42c extending in the direction. A storage space 44 (composite speaker placement space) for storing the composite speaker 14 is formed by the flat plate portion 42a and the rising portions 42b of the vibration member 42. In a state where the vibration member 42 is attached to the ceiling base material 20, the composite speaker 14 is disposed such that the actuator unit 13 is disposed in the storage space 44 of the vibration member 42 and is separated from the ceiling base material. In addition, the composite speaker 14 is disposed such that the end surface 12a on the vehicle interior side R1 of the speaker unit 12 is positioned on the vehicle interior outside R2 from the end surface 20a (design surface) on the vehicle interior side R1 of the ceiling base material 20.

  The speaker grille 43 is exemplified as a plurality (two in the figure) of protruding portions 45 (“pressing portion” and “entrance portion” according to the present invention) protruding outward from the mounting surface side with respect to the ceiling base material 20. ) Is provided. Then, in a state where the speaker grill 43 and the vibration member 42 are attached to the ceiling base material 20, the protruding portion 45 of the speaker grill 43 presses the flange portion 13 a of the actuator portion 13 toward the vibration member 42 and the ceiling base material. Of the storage holes 44 of the through-holes 19 and the vibration member 42, the space that is not occupied by the composite speaker 14 is entered to fill most of the space. The speaker grille 43 is formed with a plurality of through holes 46 for emitting sound.

(2) Action / Effect of In-Vehicle Speaker Device According to the in-vehicle speaker device 41 having the above-described configuration, in addition to exhibiting substantially the same operation / effect as the in-vehicle speaker device 11 according to the reference example , Since the projecting portion 45 exerts the pressing function of pressing the flange portion 13a constituting the actuator portion 13 toward the vibration member 42, the vibration of the actuator portion 13 of the composite speaker 14 is more efficiently applied to the vibration member 42. Can be communicated to. In addition, the projecting portion 45 of the speaker grille 43 exerts a space filling function of filling the space that the composite speaker 14 does not occupy in the through hole 19 of the ceiling base material 20 and the storage space 44 of the vibration member 42. An excess gap can be reduced in the through hole 19 and the storage space 44 to prevent the sound from wrapping around. As a result, the vibration of the actuator unit 13 of the composite speaker 14 can be more efficiently transmitted to the vibration member 42.

In the third embodiment, the composite speaker 14 is disposed so as not to protrude from the end surface 20a on the vehicle interior side R1 of the ceiling base material 20 to the vehicle interior side R1. The thickness of the portion protruding to the inner side R1 can be made relatively small, and the design property on the vehicle interior side (design surface side) of the ceiling base material 20 can be improved.

In addition, in this invention, it can be set as the Example variously changed within the range of this invention according to the objective and use, without being restricted to the said Examples 1-3 . That is, in the first to third embodiments, the on-vehicle speaker devices 11, 21, 31, and 41 including the composite speaker 14 that is arranged so that the actuator unit 13 is not in direct contact with the ceiling base member 20 are illustrated. However, the present invention is not limited to this. For example, as shown in FIG. 15, the actuator unit 13 is disposed between the ceiling base material 20 and the vibration member 15 so as to be in direct contact with the ceiling base material 20. It is good also as vehicle-mounted speaker apparatus 11 'provided with the composite speaker 14. FIG.

Furthermore, in the said Examples 1-3 , although the vehicle-mounted speaker apparatus 11,21,31,41 attached to the ceiling base material 20 was illustrated, it is not limited to this, For example, a door trim, a floor trim, an instrument panel, It is good also as a vehicle-mounted speaker apparatus attached to a console box, a pillar, a sun visor, etc.

Furthermore, in the said Examples 1-3 , although the resin-made vibration members 15 were illustrated, it is not limited to this, For example, a metal member and a nonmetallic member may be sufficient.

  The foregoing examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than limiting. As detailed herein, changes may be made in its form within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials and examples have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosure herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope.

  The present invention is not limited to the embodiments described in detail above, and various modifications or changes can be made within the scope of the claims of the present invention.

  In addition to passenger cars, buses, trucks, etc., it is widely used as a technology related to in-vehicle speaker devices that are attached to vehicle interior materials such as railway vehicles such as trains and trains, construction vehicles, agricultural vehicles, and industrial vehicles.

  11, 11 ′, 21, 31, 41; vehicle-mounted speaker device, 12; speaker unit, 13; actuator unit, 14; composite speaker, 15, 32, 42; vibration member, 16, 22, 33, 43; , 19; through-hole, 20; ceiling base material, 23, 35, 45;

Claims (4)

An in-vehicle speaker device attached to a vehicle interior material,
A composite speaker having a speaker unit for outputting mid-high range sounds and an actuator unit for outputting low range sounds;
A vibration member attached to the interior material to support the composite speaker with the actuator unit attached,
With the vibration member attached to the interior material, the composite speaker has the speaker portion disposed on the vehicle interior side, and the actuator portion disposed on the vehicle interior outside .
The speaker grille further includes a speaker grille attached to the interior material so as to cover the vehicle interior side of the speaker unit, and the speaker grille has a pressing part that presses the flange part constituting the actuator part toward the vibration member. A vehicle-mounted speaker device. An in-vehicle speaker device attached to a vehicle interior material,
A composite speaker having a speaker unit for outputting mid-high range sounds and an actuator unit for outputting low range sounds;
A vibration member attached to the interior material to support the composite speaker with the actuator unit attached,
With the vibration member attached to the interior material, the composite speaker has the speaker portion disposed on the vehicle interior side, and the actuator portion disposed on the vehicle interior outside.
The speaker grille further includes a speaker grille attached to the interior material so as to cover the interior side of the speaker unit, and the speaker grille is not occupied by the composite speaker in the arrangement space of the composite speaker formed in the interior material. An in- vehicle speaker device comprising an entry portion that enters a space . The in-vehicle speaker device according to claim 1 , wherein the composite speaker is disposed such that the actuator unit is separated from the interior material . The vibration member is attached to a surface side of the interior material on the vehicle exterior side, and the speaker grille is attached to a surface side of the interior material on the vehicle interior side, and the vibration member and the speaker grille are disposed between the vibration member and the speaker grille. The in-vehicle speaker device according to any one of claims 1 to 3, wherein an interior material is sandwiched .

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