JP2016001770A - Cover fitting structure for in-vehicle speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve designability and suppress vibrations from transmitting to an instrument panel.SOLUTION: A cover fitting structure for an in-vehicle speaker includes: a speaker body 14a arranged in a center console of a vehicle and fitted to a floor panel; and a speaker grill 50 integrally fitted to an instrument panel. In the cover fitting structure, a first clearance 56 is formed between the speaker body 14a and the speaker grill 50, left/right side covers 52 enclosing both side lower portions of the speaker body 14a and upwardly rising from the floor panel are provided, and a second clearance 58 is formed between the speaker grill 50 and the side covers 52.

Description

  The present invention relates to a cover mounting structure for a vehicle speaker.

  For example, Patent Document 1 discloses disposing a speaker box including a speaker between an instrument panel of a vehicle and a console box. In patent document 1, it is supposed that the sound from a speaker can be satisfactorily heard by both a driver and a passenger by attaching a speaker box to an instrument panel component near the driver's seat.

  Patent Document 2 discloses that a speaker is disposed behind a rear seat of a vehicle. In Patent Document 2, it is possible to prevent the generation of abnormal noise such as rubbing and reverberation due to vibration of the speaker grill by sandwiching the sound absorbing sheet between the falling portion of the speaker grill and the interior trim. Yes.

Japanese Utility Model Publication No. 4-59553 JP 2009-46009 A

  By the way, when a speaker is arranged with respect to a center console configured to be integrated with an instrument panel, vibration generated by the speaker as a vibration source is transmitted to the instrument panel, and chatter noise (chatter noise) is generated. May occur. For example, when a heavy bass sound flows from a low-frequency speaker (woofer), the chatter sound caused by the vibration is further increased.

  In order to suppress this chatter noise, for example, it is conceivable that an instrument panel and a speaker are separated from each other and a gap is provided between the instrument panel and the speaker. However, since the gap formed between the instrument panel and the speaker is located on the upper side of the center console and becomes a large space portion, it can be easily visually recognized by the driver, and the design and commercial properties are deteriorated.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a cover structure for a vehicle speaker capable of improving design and suppressing transmission of vibration to an instrument panel. And

  In order to achieve the above object, the present invention provides a speaker disposed on a center console of a vehicle and attached to a floor panel, a speaker surrounding the speaker and integrally assembled to the instrument panel. And a cover, wherein a first clearance is provided between the speaker and the speaker cover.

  According to the present invention, even when a speaker as a vibration source is arranged on the center console, the speaker is attached to the floor panel and supported by the floor panel. In the present invention, since the first clearance is provided between the speaker and the speaker cover, the speaker and the speaker cover are held in a non-contact state, and vibration generated by the speaker is transmitted to the instrument panel. It is suppressed. As a result, in the present invention, for example, even when a heavy bass sound flows from a low-frequency speaker (woofer), it is possible to reduce the occurrence of chatter noise caused by the vibration of the woofer.

  Further, according to the present invention, the speaker cover is integrally assembled with the instrument panel. Thereby, a speaker cover and an instrument panel are continuously provided without a discontinuity, and the design property can be improved.

  Furthermore, according to the present invention, since the speaker cover is attached to the instrument panel, for example, compared with the case where the speaker cover is attached to the floor panel, the speaker cover can be easily attached and detached. Maintainability can be improved.

  Further, the present invention is characterized in that another speaker cover formed separately from the speaker cover is provided, and the other speaker cover is attached to the floor panel or the speaker.

  According to the present invention, the other speaker cover can be stably supported by being attached to the floor panel or the speaker.

  Further, in the present invention, the other speaker cover rises upward from the floor panel, and a second clearance is provided between the speaker cover and the other speaker cover, and the second clearance is The seal member is sealed.

  According to the present invention, for example, even if a manufacturing error or a mounting error occurs in a speaker cover or another speaker cover, an error that is within an allowable range is caused between the speaker cover and the other speaker cover. Can be absorbed by clearance. In addition, according to the present invention, by providing the seal member that seals the second clearance, it is possible to prevent the entry of dust and the like and protect the electrical components including the speaker. Furthermore, according to the present invention, the second clearance provided between the speaker cover and the other speaker cover is provided in a portion that is relatively difficult to visually recognize from the driver, thereby improving the design and the merchantability. Can do.

  According to the present invention, it is possible to obtain a cover structure for a vehicle speaker that can improve the design and suppress the transmission of vibration to the instrument panel.

1 is a schematic perspective view of a front portion of a vehicle compartment to which a vehicle speaker cover mounting structure according to an embodiment of the present invention is applied. It is an exploded perspective view of an instrument panel or a speaker connected to the lower center of the instrument panel. It is a top view of an instrument panel and a speaker mechanism. FIG. 4 is an arrow view seen from the direction of arrow X in FIG. 3. It is a schematic longitudinal cross-sectional view along the VV line of FIG. It is a longitudinal cross-sectional view along the VI-VI line of FIG. It is explanatory drawing of the bracket which attaches a speaker with respect to a floor panel. It is explanatory drawing of the nail | claw part which attaches a speaker grille with respect to an instrument panel lower. It is explanatory drawing of the nail | claw part which attaches a side cover with respect to a speaker main body.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a schematic perspective view of a front part of a vehicle compartment to which a vehicle speaker cover mounting structure according to an embodiment of the present invention is applied, and FIG. 2 is an instrument panel or speaker connected to a lower center of an instrument panel. FIG.

  FIG. 1 shows a state in which the floor pal is exposed without showing the left and right front doors and the left and right front seats mounted on the front part of the passenger compartment. In each figure, “front and rear” indicates the vehicle longitudinal direction, “left and right” indicates the vehicle width direction (left and right direction), and “up and down” indicates the vehicle vertical direction.

  As shown in FIGS. 1 and 2, the vehicle 10 includes an instrument panel mechanism 12 and a speaker mechanism 14 disposed on the front side of the center console 13 between left and right front seats (not shown).

  The instrument panel mechanism 12 extends along the vehicle width direction, and is made of a resin instrument panel 16 on which a steering handle, electrical parts, and the like are disposed, and a resin-made instrument panel 16 connected to a substantially central lower portion 18 of the instrument panel 16. An instrument panel 20 is provided. The instrument panel 16 and the instrument panel 20 function as an instrument panel as a whole.

  As shown in FIG. 2, the instrument panel 20 has an instrument panel main body 22, a pair of legs 26 that are installed on the upper surface of the floor panel 24 and support the instrument panel main body 22, and protrudes toward the instrument panel 16. A plurality of claw portions 28 are provided. The plurality of claw portions 28 are respectively attached to a plurality of engagement holes (not shown) provided in the lower part of the instrument panel 16. Thereby, the instrument panel 20 can be integrally connected to the substantially central lower portion 18 of the instrument panel 16.

  As shown in FIGS. 2 and 7, the speaker body 14 a constituting the speaker mechanism 14 is attached to the floor panel 24 via two brackets 36 a and 36 b that are separated by a predetermined distance along the front-rear direction. One bracket 36a located in the front of the vehicle projects from the substantially U-shaped fixing portion 38 fixed to the lower surface of the floor panel 24 and the opening 24a of the floor panel 24 to face the vehicle interior, and a speaker by a bolt (not shown). It has the fastening part 40 which fastens the main body 14a. The other bracket 36b located behind the one bracket 36a is fixed to the upper surface of the floor panel 24, and has a fastening portion 42 that fastens the speaker body 14a with a bolt (not shown).

  3 is a plan view of the instrument panel and the speaker mechanism, FIG. 4 is an arrow view seen from the direction of the arrow X in FIG. 3, FIG. 5 is a schematic longitudinal sectional view taken along the line VV in FIG. 4 is a longitudinal sectional view taken along line VI-VI in FIG. 4, FIG. 7 is an explanatory view of a bracket for attaching the speaker to the floor panel, and FIG. 8 is an explanatory view of a claw portion for attaching the speaker grill to the instrument panel. FIG. 9 is an explanatory diagram of a claw portion for attaching the side cover to the speaker body.

  The speaker mechanism 14 includes a speaker body (speaker) 14a and a plurality of resin covers (described later) surrounding the speaker body 14a. The speaker body 14 a includes a resin casing 30, a speaker 32 and a resonance unit 34 accommodated in the casing 30. The speaker body 14a is provided with a plurality of fixing portions 41 that are fastened to the fastening portions 40 and 42 of the pair of brackets 36a and 36b via bolts (not shown) (see FIG. 2). .

  As shown in FIG. 5, the speaker 32 includes a high sound range speaker 32 a disposed so as to face the rear of the vehicle and a low sound region speaker (woofer) 32 b disposed so as to face the front of the vehicle. The high-frequency range speaker 32a and the low-frequency range speaker 32b are configured to be integrally coupled on both the front and back surfaces. The resonance unit 34 has a resonance tube (resonance passage) (not shown) through which the sound flowing from the low-frequency speaker 32b propagates.

  The resonance tube (not shown) extends, for example, from the vehicle front side of the speaker main body 14a toward the vehicle rear side, and after making a U-turn on the vehicle rear side, further extends toward the vehicle front side. The left and right ports 44 formed on both sides of the casing 30 communicate with each other. As a result, the heavy bass sound propagated from the bass speaker 32b is configured to flow out from the left and right ports 44 of the speaker body 14a into the vehicle interior.

  As shown in FIG. 2, the plurality of covers are formed separately from the speaker grille (speaker cover) 50 surrounding the speaker 32 and the speaker grille 50 and on the left and right sides of the speaker main body 14a along the vehicle width direction. A pair of side covers (other speaker covers) 52 surrounding the lower portion and a rear cover 54 surrounding a lower portion of the speaker grill 50 and a part of the resonance portion 34 are configured.

  As shown in FIG. 8, the speaker grill 50 has a plurality of claw portions 50a. The speaker grille 50 is connected to the instrument panel lower 20 by attaching the claw portion 50 a to the engagement hole 20 a of the instrument panel lower 20. Further, as shown in FIG. 6, a first clearance 56 is provided between the speaker body 14 a and the speaker grill 50. The first clearance 56 holds the speaker main body 14 a and the speaker grille 50 in a non-contact state and prevents vibration from the speaker main body 14 a from being transmitted to the speaker grille 50.

  As shown in FIG. 2 and FIG. 8, the speaker grille 50 is opposed to the loudspeaker speaker 32a, and has a disc part 50b in which a plurality of small holes are arranged in a mesh shape, and a circle continuous to the disc part 50b. It is comprised from the ring part 50c and a pair of arm part 50d which branches into two forks from the ring part 50c, and protrudes toward the instrument panel lower 20 side. As shown in FIG. 8, the plurality of claw portions 50a are provided at the tip portions of the annular portion 50c and the arm portion 50d.

  As shown in FIG. 2, the left and right side covers 52 have a rectangular shape and are formed symmetrically with each other. As shown in FIG. 9, claw portions 52 a are provided at the four corners of each side cover 52. The pair of side covers 52 are connected to the speaker body 14a by attaching the claw portions 52a to the engagement holes 14b of the speaker body 14a.

  In the assembled state shown in FIG. 1, the pair of side covers 52 are provided so as to rise upward from the floor panel 24 and surround the lower portion of the speaker body 14a. A rectangular opening 52b is formed at a substantially central portion of each side cover 52. With this opening 52b, it is possible to distribute heavy bass sounds derived from the left and right ports 44 (see FIG. 2) of the speaker body 14a into the vehicle interior.

  The rear cover 54 is attached to the speaker body 14a by a claw portion (not shown). The rear cover 54 is positioned below the disc portion 50b of the speaker grill 50 and has an arc portion 54a having an arc-shaped recess, and extends from the arc portion 54a toward the rear of the vehicle and surrounds a part of the resonance portion 34. And a rear extension 54b.

  As shown in FIGS. 6 and 5, a second clearance 58 is formed between the speaker grill 50 and the pair of side covers 52 and between the speaker grill 50 and the rear cover 54. As shown in FIG. 5, a third clearance 60 is formed between the speaker body 14 a and the instrument panel 20.

  A second clearance 58 formed between the speaker grill 50 and the pair of side covers 52 is sealed by a seal member 62 (see the halftone dots in FIGS. 4 and 6). As shown in FIG. 4, the seal member 62 is provided not only in the region between the speaker grille 50 and the side cover 52 but also in the region between the instrument panel 20 and the side cover 52.

  The seal member 62 may be formed of a material such as a nonwoven fabric or felt, for example. Further, the second clearance 58 formed between the speaker grill 50 and the pair of side covers 52 is located on the lower side of the speaker grill 50 and is in a relatively inconspicuous portion that is difficult to be visually recognized by the driver. Is provided.

  In the present embodiment, the pair of side covers 52 are attached to the speaker body 14a. For example, the pair of side covers 52 are provided with fastening portions (not shown) that are fastened by bolts, and the fastening portions are interposed therebetween. The pair of side covers 52 may be fastened to the floor panel 24.

  The front portion of the vehicle 10 to which the vehicle speaker cover mounting structure according to the present embodiment is applied is basically configured as described above. Next, the function and effect will be described.

  In the present embodiment, when the speaker main body 14a that is a vibration source is disposed on the center console 13, the speaker main body 14a is attached to the floor panel 24 and supported by the floor panel 24 via the two brackets 36a and 36b. Yes. In the present embodiment, since the first clearance 56 (see FIG. 6) is provided between the speaker main body 14a and the speaker grille 50, the speaker main body 14a and the speaker grille 50 are held in a non-contact state, and the speaker 32 Is prevented from being transmitted to the instrument panel 16.

  As a result, in the present embodiment, even if the heavy bass sound generated by the low-frequency speaker (woofer) 32b flows from the left and right ports 44 into the vehicle interior, the low-frequency speaker (woofer) 32b vibrates. The occurrence of chattering noise can be reduced.

  Further, in the present embodiment, the speaker grill 20 is integrally assembled with the instrument panel 20. As a result, the speaker grill 20 and the instrument panel 20 are continuously provided without any discontinuity, and the design can be improved.

  Furthermore, in this embodiment, since the speaker grille 50 is attached to the instrument panel 20 via the claw portion 50a, for example, as compared with the case where the speaker grille 50 is directly attached to the floor panel 24. In addition, the attaching / detaching operation of the speaker grill 50 performed from the upper side to the lower side of the vehicle interior becomes easy, and the maintainability can be improved.

  Furthermore, in this embodiment, the left and right side covers 52 can be stably supported by attaching the left and right side covers 52 to the speaker body 14a via the claw portions 52a.

  Furthermore, in the present embodiment, for example, even when a manufacturing error or a mounting error occurs in the speaker grill 50 or the side cover 52, the error that is within an allowable range is detected between the speaker grill 50 and the side cover 52. Can be absorbed by the second clearance 58 (see FIGS. 4 and 6).

  Furthermore, in this embodiment, by providing the sealing member 62 that seals the second clearance 58, it is possible to prevent dust and the like from entering the speaker main body 14a and suitably protect the electrical components including the speaker 32. .

  Furthermore, in the present embodiment, the second clearance 58 provided between the speaker grill 50 and the side cover 52 is provided in a portion that is relatively difficult to visually recognize from the driver on the lower side of the speaker grill 50, thereby providing a design. And merchantability can be improved.

  Furthermore, in the present embodiment, by providing the third clearance 60 (see FIG. 5) between the speaker body 14a and the instrument panel 20, vibration generated in the speaker body 14a is transmitted to the instrument panel 16. This can be avoided even more preferably.

10 Vehicle 13 Center console 14a Speaker body (speaker)
16 Instrument panel 20 Instrument panel (instrument panel)
24 Floor panel 50 Speaker grill (speaker cover)
52 Side cover (other speaker cover)
56 First clearance 58 Second clearance 62 Seal member

Claims (3)

A speaker disposed on the center console of the vehicle and attached to the floor panel;
A speaker cover that surrounds the speaker and is integrally assembled with the instrument panel;
With
A vehicular speaker cover structure, wherein a first clearance is provided between the speaker and the speaker cover. The vehicle speaker cover structure according to claim 1,
Another speaker cover formed separately from the speaker cover is provided,
The other speaker cover is attached to the floor panel or the speaker. The vehicle speaker cover structure according to claim 2,
The other speaker cover rises upward from the floor panel,
A second clearance is provided between the speaker cover and the other speaker cover,
The cover structure for a vehicle cover, wherein the second clearance is sealed by a seal member.

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