JP5316861B2 - Vehicle speaker device - Google Patents

Description

  The present invention relates to a vehicle speaker device attached to a vehicle.

  2. Description of the Related Art Conventionally, a speaker device having a configuration in which a speaker portion of a speaker unit is attached to a front-side opening that opens to the front side of a speaker box is generally known. An electric wire for transmitting and receiving audio signals and the like is extended on the back side of the speaker. On the back side of the speaker box, a back side opening through which the electric wire is inserted is opened. Depending on the type of the speaker, it may be necessary to use the speaker box with a sealed space.

  For example, in the one described in Patent Document 1 below, the speaker portion of the speaker unit is attached to the front side opening, the front side opening is closed, and then the rear side opening is closed in a state where the electric wire is pulled out from the inside of the speaker box. The member to be provided is provided separately from the speaker box. Thus, a sealed space is formed inside the speaker box by the two members including the speaker unit and the member. This is the same as that described in Patent Document 2 below, and the back side opening is closed with the electric wire inserted by a stopper provided separately from the speaker box, so that the inside of the speaker box is sealed. A space is formed.

JP 2007-306082 A JP-A-6-284487

  However, any of the above-described configurations requires a work for closing the rear side opening separately from the work for mounting the speaker unit. In addition to the speaker unit, it is also necessary to prepare a member for closing the rear side opening. Therefore, the mounting operation of the speaker unit becomes complicated and the number of parts increases.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to facilitate a mounting operation of a speaker unit that requires a sealed space inside a speaker box.

  The present invention relates to a speaker device for a vehicle that is attached to a vehicle, and includes a speaker unit having a speaker in which an electric wire extends to the back side, a front side opening to which a speaker portion of the speaker unit is attached, and a rear side opening through which the electric wire is inserted. And having a speaker box in which a front side opening and a rear side opening are both closed by a speaker unit as a speaker part is attached, thereby forming a sealed space inside.

  According to such a configuration, since the front opening and the rear opening are both closed by the speaker unit by attaching the speaker portion of the speaker unit to the front opening, a sealed space is formed inside the speaker box. As described above, since the rear side opening can be closed simultaneously with the mounting operation of the speaker unit, the mounting operation of the speaker unit requiring a sealed space inside the speaker box can be facilitated. Further, since it is not necessary to prepare a member for closing the rear side opening separately from the speaker unit, the number of parts can be reduced.

The following configuration is preferable as an embodiment of the present invention.
The speaker unit is arranged around the speaker, and a speaker mounting part that closes the front side opening together with the speaker, and a wire insertion part that is arranged on the back side of the speaker mounting part and closes the rear side opening with the electric wire inserted. It is good also as a structure which has the bracket which provided the part integrally.

  According to such a configuration, by attaching the speaker mounting portion to the front opening, the front opening is closed by the speaker and the speaker mounting portion, and the rear opening is closed by the wire insertion portion. Moreover, since the speaker mounting portion and the wire insertion portion are integrally configured as a bracket, the speaker unit can be easily handled and the speaker can be protected.

The front side opening and the back side opening may be arranged coaxially, and the wire insertion part may be fitted to the back side opening by fitting the speaker mounting part to the front side opening.
According to such a configuration, the wire insertion portion can be fitted to the back side opening by fitting the speaker mounting portion to the front side opening.

A male screw that can be screwed into a female screw formed on the inner periphery of the front opening may be formed on the outer periphery of the speaker mounting portion.
According to such a configuration, the speaker unit can be firmly attached to the speaker box by screwing the speaker attachment portion to the front side opening.

It is good also as a structure by which the external thread which can be screwed together with the internal thread formed in the inner periphery of the back side opening is formed in the outer periphery of the electric wire insertion part.
According to such a configuration, the speaker unit can be firmly attached to the speaker box by screwing the electric wire insertion portion to the back side opening.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment operation | work of the speaker unit which needs sealed space inside a speaker box can be made easy.

The figure which looked at the instrument panel periphery in Embodiment 1 from back The figure which looked at the front pillar garnish lower periphery from Embodiment 1 diagonally back. AA line sectional view in FIG. Exploded sectional view of FIG. 1 is an exploded perspective view of a speaker box of Embodiment 1. FIG. Sectional drawing (upper figure) of the bracket and rubber stopper of Embodiment 1, and its perspective view (lower figure) Sectional drawing which showed the state in which the speaker unit in Embodiment 2 was attached to the speaker box. Sectional drawing of the speaker box in Embodiment 2 Sectional drawing which showed the state in which the speaker unit in Embodiment 3 was attached to the speaker box. Sectional drawing of the speaker box single-piece | unit in Embodiment 3. The disassembled perspective view which showed the attachment structure of the speaker grille in Embodiment 4. FIG. Exploded sectional view showing the mounting structure of the speaker grill in Embodiment 4 The disassembled perspective view which showed the attachment structure of the speaker grille in Embodiment 5. FIG.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to the drawings of FIGS. FIG. 1 is a view of an instrument panel 10 of a vehicle as viewed from the rear. A pair of front pillar garnishes 11 are arranged on both sides of the instrument panel 10 in the vehicle width direction. The front pillar garnish 11 constitutes a window frame of the front window and is connected to a ceiling (not shown).

  As shown in FIG. 2, the lower end side of the front pillar garnish 11 is bifurcated, and a triangular window 12 that cannot be opened and closed is fitted into the branched portion. A front pillar garnish lower 13 is disposed below the branch portion. A speaker grill 40 is disposed at a position adjacent to the front pillar garnish lower 13. The vehicle speaker device according to the first embodiment is attached to a front pillar garnish lower 13 as shown in FIG.

  The vehicle speaker device includes a pair of speaker units 20 arranged side by side in the vehicle front-rear direction and a speaker box 30 to which these speaker units 20 are attached. As shown in FIG. 5, the speaker box 30 is formed integrally with the front pillar garnish lower 13. As shown in FIG. 5, the speaker box 30 has a hollow interior, and a sealed space S is formed in the interior by attaching the speaker unit 20. This will be described in detail later. Both side walls 31, 31 constituting both sides of the speaker box 30 in the vehicle front-rear direction are integrally attached to the box body 32 in a state where a gap is closed with resin or the like.

  The speaker unit 20 includes a speaker 21, a bracket 22 that supports the speaker 21 and is attached to the speaker box 30. A speaker cable (an example of the “electric wire” in the present invention) 23 that transmits and receives electrical signals such as audio signals is integrally connected behind the speaker 21. When using the speaker 21 of this embodiment, it is necessary to form the sealed space S inside the speaker box 30.

  As shown in FIG. 6, the bracket 22 includes a speaker attachment portion 24 to which the speaker 21 is attached, an electric wire insertion portion 25 disposed on the back side of the speaker attachment portion 24, and the speaker attachment portion 24 and the electric wire insertion portion 25. It is the structure which provided integrally the connection part 26 arrange | positioned between. The electric wire insertion portion 25 has a cylindrical shape, and a mounting hole 25A through which the rubber plug 27 can be mounted is formed at a position along the central axis. The rubber plug 27 has a cylindrical shape, and the speaker cable 23 can be inserted through an insertion hole formed along the central axis. Note that a rib for retaining is provided around the outer peripheral surface of the rubber plug 27. By fitting this rib into a circumferential groove provided on the inner peripheral surface of the insertion hole of the rubber plug 27, the rubber plug 27 is fitted. 27 is secured. Thereby, the rubber plug 27 closes the space between the outer peripheral surface of the speaker cable 23 and the inner peripheral surface of the mounting hole 25A.

  The speaker mounting portion 24 has a cylindrical shape and is arranged coaxially with the wire insertion portion 25. The speaker mounting portion 24 is disposed on the outer periphery of the speaker 21 and supports the speaker 21. A male screw 24 </ b> A is formed on the outer periphery of the speaker mounting portion 24. Further, a flange portion 24 </ b> B projecting outward in the radial direction is provided around the end portion of the speaker mounting portion 24. The flange portion 24B is formed with a plurality of boss portions 24C protruding to the opposite side of the electric wire insertion portion 25 along the axial direction.

  A male screw 25 </ b> B is formed on the outer periphery of the wire insertion portion 25. A step portion 25 </ b> C connected to the connecting portion 26 after projecting radially outward is formed at the end of the wire insertion portion 25 on the speaker mounting portion 24 side. The connecting portion 26 is constituted by a plurality of connecting arms that connect the stepped portion 25C and the speaker mounting portion 24, and these connecting arms are intermittently arranged around the axis.

  As shown in FIG. 4, a front-side opening 33 into which the speaker mounting portion 24 can be fitted is formed on the front side of the box body 32. An internal thread 33A is formed on the inner periphery of the front side opening 33 on the back side. For this reason, the speaker mounting portion 24 is fitted into the front opening 33 by screwing the male screw 24A and the female screw 33A. Thereby, the front side opening 33 is closed by the speaker 21 and the speaker mounting portion 24, and the speaker unit 20 is firmly attached to the box body 32.

  A mounting recess 35 is provided around the inner periphery of the front side opening 33 on the front side so as to expand radially outward. An end of a pipe 41 provided on the speaker grill 40 is attached to the mounting recess 35. Specifically, a plurality of locking claws 42 that are intermittently disposed along the circumferential direction are formed at the end of the pipe 41, and the locking claws 42 are locked to the mounting recess 35. Thus, the end of the pipe 41 is fixed to the mounting recess 35. This pipe 41 can enhance the directivity of sound from the speaker 21.

  The end of the pipe 41 opposite to the locking claw 42 is covered with a mesh-shaped cover member 43. The cover member 43 has a plurality of small holes so that foreign matters such as dust do not enter the inside of the pipe 41, but can pass sound toward the outside of the pipe 41 without stagnation. As shown in FIG. 3, the design surface of the cover member 43 is formed flush with the design surface of the speaker grill 40 and the design surface of the instrument panel 10, and is devised to improve the appearance appearance.

  On the other hand, on the back side of the box body 32, a back side opening 34 into which the wire insertion part 25 can be fitted is formed. The back side opening 34 is arranged coaxially with the front side opening 33. A female screw 34 </ b> A is formed on the inner periphery of the rear side opening 34. For this reason, the electric wire insertion part 25 fits in the inside of the back side opening 34 by screwing the external thread 25B and the internal thread 34A. As a result, the rear side opening 34 is closed by the electric wire insertion portion 25 and the rubber plug 27, and the speaker unit 20 is firmly attached to the box body 32 at two locations, the front side opening 33 and the rear side opening 34.

  Furthermore, at the same time when the speaker mounting portion 24 is fitted into the front side opening 33, the wire insertion portion 25 is fitted into the back side opening 34. That is, when the speaker mounting portion 24 is screwed into the front opening 33, the wire insertion portion 25 is simultaneously screwed into the rear opening 34. Therefore, when the speaker unit 20 is attached to the speaker box 30, it is only necessary to attach the speaker attachment portion 24 to the front opening 33, and there is no need to attach the wire insertion portion 25 to the back opening 34. As a result of the speaker unit 20 being attached to the speaker box 30 in this way, a sealed space S is formed inside the speaker box 30.

The first embodiment has the above-described configuration, and subsequently, the speaker device mounting operation will be described.
First, an operation for attaching the speaker unit 20 to the speaker box 30 will be described. The speaker cable 23 of the speaker unit 20 is pulled out from the front side opening 33 to the back side of the speaker box 30 through the back side opening 34. Thereafter, the speaker mounting portion 24 is shallowly fitted into the front opening 33, and the speaker unit 20 is screwed to fit the speaker mounting portion 24 deeply into the front opening 33. The opening 34 is deeply fitted. Then, as shown in FIG. 3, the flange portion 24 </ b> B of the speaker mounting portion 24 is in close contact with the opening edge portion of the front side opening 33, and the step portion 25 </ b> C of the electric wire insertion portion 25 is in close contact with the opening edge portion of the back side opening 34. To do. Further, the front side opening 33 is closed by the speaker 21 and the speaker mounting portion 24, and the back side opening 34 is closed in a state where the speaker cable 23 is inserted by the electric wire insertion portion 25 and the rubber plug 27. As a result, a sealed space S is formed inside the speaker box 30.

  Next, an operation for attaching the speaker grill 40 to the speaker box 30 will be described. The end of the pipe 41 is fixed to the front side opening 33 by hooking the locking claw 42 of the pipe 41 on the mounting recess 35 of the front side opening 33. Thereafter, the front pillar garnish lower 13 to which the speaker unit 20 and the speaker grill 40 are attached is attached to the vehicle body side. As a result, as shown in FIG. 2, a design surface is formed in which the surface of the instrument panel 10, the surface of the speaker grill 40, and the surface of the front pillar garnish lower 13 are flush with each other, and is hidden behind the design surface. In this state, the speaker unit 20 is installed.

  As described above, in the first embodiment, both the front-side opening 33 and the rear-side opening 34 are closed only by the normal operation of attaching the speaker unit 20 to the front-side opening 33 of the speaker box 30, and the inside of the speaker box 30. A sealed space S can be formed. That is, it is not necessary to separately prepare a member for closing the back side opening 34, and the work for closing the back side opening 34 is not necessary, so that the speaker unit 20 can be easily attached.

  Further, the front opening 33 can be closed by the speaker 21 and the speaker mounting portion 24, and the rear opening 34 can be closed by the electric wire insertion portion 25 and the rubber plug 27. Further, since the speaker mounting portion 24 and the wire insertion portion 25 are integrally configured as the bracket 22, the speaker unit 20 can be easily handled and the speaker 21 can be protected.

  Further, by screwing the speaker unit 20 in a state where the speaker mounting portion 24 is shallowly fitted to the front opening 33, the speaker mounting portion 24 and the wire insertion portion 25 are simultaneously inserted into the front opening 33 and the rear opening 34. Can be fitted. Further, since the speaker mounting portion 24 and the electric wire insertion portion 25 can be screwed, the speaker unit 20 can be firmly attached to the speaker box 30.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to the drawings of FIGS. The vehicle speaker device according to the second embodiment is obtained by partially changing the configuration of the electric wire insertion portion 25 according to the first embodiment, and the same reference numerals are given to configurations common to the first embodiment. The description of the same configuration, operation, and effect as those in FIG.

  As shown in FIG. 7, the electric wire insertion part 51 of Embodiment 2 has a truncated cone shape, and an insertion hole 52 through which the speaker cable 23 can be inserted is formed at a position along the central axis. Further, unlike the first embodiment, no male screw is formed on the outer periphery of the wire insertion portion 51. For this reason, the speaker unit 50 of Embodiment 2 is attached to the speaker box 30 by screwing at only one place of the speaker attachment portion 24.

  The step portion 53 of the wire insertion portion 51 is brought into close contact with the opening edge portion of the back side opening 54 as the speaker mounting portion 24 is tightened. Therefore, the back side opening 54 is closed by the step portion 53, and the sealed space S can be formed inside the speaker box 30. Since the hole diameter of the insertion hole 52 is set to be approximately the same as or slightly larger than the outer diameter of the speaker cable 23, the insertion hole 52 is closed by the speaker cable 23.

  In this way, when the speaker unit 20 is attached, the frictional resistance generated when the speaker attachment portion 24 is screwed is less than that in the first embodiment, and the attachment operation of the speaker unit 20 is facilitated. Even if the back side opening 54 is formed to be larger than the normal hole diameter, the stepped portion 53 is in close contact with the opening edge of the back side opening 54, so that the back side opening 54 can be closed. On the contrary, even if the back side opening 54 is formed to be smaller than the regular hole diameter, the outer peripheral surface of the wire insertion portion 51 closely contacts the opening edge of the back side opening 54, so the back side opening 54 is closed. can do.

<Embodiment 3>
Next, a third embodiment of the present invention will be described with reference to FIGS. 9 and 10. The vehicle speaker device according to the third embodiment is obtained by partially changing the configuration of the back side opening 54 of the second embodiment. The components common to the second embodiment are denoted by the same reference numerals as those of the second embodiment. The description of the same configuration, operation, and effect as those in FIG.

  That is, the back surface side opening 54 of the second embodiment has a shape in which the inner peripheral surface of the back side opening 54 is vertically cut along the axial direction, whereas the back surface side opening 55 of the third embodiment has an inner peripheral surface thereof. It forms in the shape of a mortar which goes to radial direction inner side, so that it goes to the back side along an axial direction. Moreover, since the inner peripheral surface on the front side of the back surface opening 55 is wider than the proximal end side of the wire insertion portion 51, the outer peripheral surface on the distal end side of the wire insertion portion 51 is on the back side of the back surface opening 55. Close contact with the inner peripheral surface. Therefore, the back side opening 55 is closed by the wire insertion part 51, and the sealed space S can be formed inside the speaker box 30. Even if the back surface side opening 55 is formed larger than the regular hole diameter and the outer peripheral surface of the wire insertion portion 51 is not in close contact with the inner peripheral surface of the back surface side opening 55, at least the step portion of the wire insertion portion 51. 53 closely contacts the opening edge on the front side of the back side opening 55, so that the back side opening 55 can be closed.

<Embodiment 4>
Next, a fourth embodiment of the present invention will be described with reference to FIGS. 11 and 12. The vehicle speaker device according to the fourth embodiment is obtained by partially changing the configuration of the speaker grill 40 according to the first embodiment. Components that are the same as those in the first embodiment are denoted by the same reference numerals. The description of overlapping configurations, operations, and effects will be omitted. In other words, the speaker grill 60 of the fourth embodiment is a modification of the speaker grill 40 of the first embodiment, and needless to say, can be applied to the configurations of the second and third embodiments.

  Since the speaker grill 40 of the first embodiment is attached to the speaker box 30 by fixing the end of the pipe 41 to the front opening 33, the speaker grill 40 and the instrument grill 10, There is a possibility that a level difference occurs on the design surface between the front pillar garnish lowers 13 or abnormal noise is generated due to vibration or the like. In view of this, the speaker grill 60 can be directly fixed to the instrument panel 10 and the front pillar garnish lower 13 in order to prevent steps and abnormal noise. When the speaker grill 60 is fixed to the instrument panel 10 and the front pillar garnish lower 13, the end portion of the pipe 62 described below is in close contact with the opening edge of the front side opening 33. Sound does not leak out of the pipe 62.

  As shown in FIG. 11 or 12, the speaker grill 60 includes a grill main body 61 that constitutes a design surface, and a pipe 62 that extends obliquely downward from the back surface (the surface opposite to the design surface) of the grill main body 61. It is configured. In the first embodiment, the end of the pipe 41 is fixed to the speaker box 30, whereas in the fourth embodiment, the both ends of the grill body 61 in the vehicle width direction are connected to the instrument panel 10 and the front pillar garnish lower 13. On the other hand, it is directly fixed using a fixing screw 63. Further, prior to the main fixing with the fixing screw 63, the grill main body 61 can be temporarily fixed to the instrument panel 10 and the front pillar garnish lower 13.

  In FIG. 12, a locking portion 64 that protrudes downward is provided on the lower left surface of the grill body 61, and a flange portion 65 that protrudes rightward is provided on the right side surface of the grill body 61. On the other hand, on the mating surface 66 of the instrument panel 10 with the grill main body 61, there are a locking portion 64, a locked portion 67 that can be locked in the vertical direction, and a fixing hole 68 into which the fixing screw 63 can be screwed. Is provided. Further, the mating surface 69 of the front pillar garnish lower 13 with the grill main body 61 is provided with a recess 70 capable of receiving the flange portion 65 and a through hole 71 into which the fixing screw 63 can be screwed.

Next, the mounting operation of the speaker grill 60 will be briefly described.
First, the grill body 61 is brought into contact with the mating surfaces 66 and 69 by engaging the locking portion 64 with the locked portion 67 while inserting the flange portion 65 of the grill body 61 into the recess 70. As a result, the speaker grill 60 is temporarily fixed to the instrument panel 10 and the front pillar garnish lower 13.

  Next, one fixing screw 63 is inserted into the fixing hole 68 and screwed together, and the other fixing screw 63 is inserted into the through hole 71 and screwed together, so that both ends of the grill body 61 in the vehicle width direction are both connected. Adhere to the mating surfaces 66 and 69. Thereby, the speaker grill 60 is permanently fixed to the instrument panel 10 and the front pillar garnish lower 13.

  If it does in this way, between the speaker grill 60 and the instrument panel 10 or between the speaker grill 60 and the front pillar garnish lower 13 will not produce a level | step difference in a design surface, but noise will generate | occur | produce by vibration etc. Nor. Further, since the instrument panel 10 and the front pillar garnish lower 13 are firmly connected by the speaker grill 60, rattling between them is not caused.

<Embodiment 5>
Next, Embodiment 5 of the present invention will be described with reference to the drawing of FIG. The vehicular speaker device according to the fifth embodiment is obtained by partially changing the configuration of the speaker grill 40 according to the first embodiment. Components that are the same as those in the first embodiment are denoted by the same reference numerals. The description of overlapping configurations, functions, and effects is omitted.

  As shown in FIG. 13, the speaker grill 80 according to the fifth embodiment has a configuration in which a flange portion 82 that projects outward in the radial direction is provided at the end portion of the pipe 81. A boss receiving portion 83 having a long hole shape in the circumferential direction is formed through the flange portion 82. When the speaker grille 80 is attached to the speaker box 30, the boss portion 24 </ b> C of the speaker attachment portion 24 is fitted into the boss receiving portion 83, and the flange portion 24 </ b> B of the speaker attachment portion 24 comes into surface contact with the flange portion 82 of the pipe 81. For this reason, the sound emitted from the speaker 21 is directly sent to the outside through the inside of the pipe 81. That is, in the fifth embodiment, the sound from the speaker 21 does not enter the mounting recess 35 of the first embodiment and the sound is not muffled, and a clearer sound can be produced.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Although the speaker mounting portion 24 can be fitted into the front opening 33 in the above embodiment, according to the present invention, the flange portion that allows the speaker mounting portion 24 to be in close contact with the opening edge of the front opening 33. It is good also as a structure provided with.

  (2) Although the speaker 21 is indirectly attached to the speaker box 30 by using the bracket 22 in the above embodiment, the speaker 21 may be directly attached to the speaker box 30 according to the present invention.

  (3) Although the front side opening 33 and the back side opening 34 (54, 55) are arranged coaxially in the above embodiment, according to the present invention, the front side opening 33 and the back side opening 34 (54, 55). May not be arranged on the same axis.

  (4) Although the speaker mounting part 24 is screwed into the front side opening 33 in the above embodiment, according to the present invention, the speaker mounting part 24 is not screwed into the front side opening 33 in the axial direction. You may make it fit.

  (5) Although the speaker mounting portion 24 is screwed into the front side opening 33 in the above embodiment, according to the present invention, only the wire insertion portion 25 (51) is formed in the rear side opening 34 (54, 55). It is good also as a structure screwed in.

20, 50 ... Speaker unit 21 ... Speaker 22 ... Bracket 23 ... Speaker cable (electric wire)
24 ... Speaker mounting portion 24A ... Male screw 25, 51 ... Electric wire insertion portion 25B ... Male screw 30 ... Speaker box 33 ... Front side opening 33A ... Female screw 34, 54, 55 ... Rear side opening 34A ... Female screw 35 ... Mounting recess 40, 60, 80 ... Speaker grille S ... Enclosed space

Claims (4)

A vehicle speaker device attached to a vehicle,
A speaker unit having a speaker in which an electric wire extends to the back side;
The speaker unit has a front side opening for attaching the speaker part and a rear side opening for inserting the electric wire, and the front side opening and the rear side opening are both closed by the speaker unit when the speaker part is attached. And a speaker box in which a sealed space is formed inside ,
The speaker unit is disposed around the speaker, and is disposed on the rear side of the speaker mounting portion with a speaker mounting portion that closes the front side opening together with the speaker, and the back surface in a state where the electric wire is inserted. A vehicle speaker device having a bracket integrally provided with an electric wire insertion portion for closing a side opening .   The said front side opening and the said back side opening are arrange | positioned coaxially, The said wire insertion part is fitted by the said back side opening by fitting the said speaker attachment part to the said front side opening. The vehicle speaker device.   The vehicular speaker device according to claim 2, wherein a male screw that can be screwed into a female screw formed on an inner periphery of the front side opening is formed on an outer periphery of the speaker mounting portion.   4. The vehicle speaker device according to claim 2, wherein a male screw capable of being screwed into a female screw formed on an inner periphery of the rear side opening is formed on an outer periphery of the electric wire insertion portion.

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