JP2017065376A - Attachment structure of on-vehicle speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment structure of an on-vehicle speaker which secures rigidity of a periphery of an attachment portion of the speaker to improve the sound quality of the speaker with a simple structure.SOLUTION: An attachment structure of an on-vehicle speaker includes: an inner panel 12 having a mounting hole 12h of a speaker 90; an outer panel 14 disposed at a vehicle outer side of the inner panel 12 and forming a space with the inner panel 12; a mounting surface 12m of the speaker 90 which is provided at a periphery of the mounting hole 12h; a connection part 20 which is provided so as to be spanned between the mounting surface 12m and the outer panel 14; and a joint part 30 which joins an end part of the connection part 20 to the outer panel 14.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a mounting structure for an in-vehicle speaker installed in a vehicle.

  Speakers equipped in vehicles are often attached to an inner panel constituting a quarter panel or a door. For example, in Patent Document 1, in a quarter inner panel, an opening is formed between the center pillar and the rear wheel house, and the quarter pillar is attached across the center pillar and the rear wheel house so as to cross the opening. A structure in which a speaker is attached via a mounting bracket is disclosed.

  The sound quality of the speaker is improved as the rigidity around the speaker mounting portion is higher. In Patent Document 1, the sound quality of a speaker is improved by attaching a mounting bracket to a center pillar having relatively high rigidity to increase the mounting rigidity of the speaker.

JP 2009-190548 A

  Although the technique of Patent Document 1 can improve the sound quality of the speaker by increasing the mounting rigidity of the speaker, it is necessary to attach the mounting bracket to the center pillar, and the mounting position of the speaker is limited.

  The present invention has been made in view of the above circumstances, and one of its purposes is to provide an in-vehicle speaker mounting structure that can secure the rigidity around the speaker mounting location with a simple configuration and improve the sound quality of the speaker. There is to do.

  An in-vehicle speaker mounting structure according to an aspect of the present invention includes an inner panel having a speaker mounting hole, an outer panel disposed outside the inner panel and forming a space between the inner panel and the inner panel; A speaker mounting surface provided at a peripheral edge of the mounting hole; a connecting portion provided so as to bridge between the mounting surface and the outer panel; and a joint portion that joins an end portion of the connecting portion and the outer panel; .

  The mounting structure of the above-described in-vehicle speaker can improve the surface rigidity of the outer panel by connecting the outer panel to the inner panel (speaker mounting surface) via the connecting portion. The rigidity of the speaker mounting surface can be relatively improved by connecting the speaker mounting surface via the connecting portion to the outer panel having improved surface rigidity. Therefore, the sound quality of the speaker attached to the attachment surface of the speaker can be improved. In addition, by improving the surface rigidity of the outer panel, it is possible to suppress the resonance (vibration) of the outer panel due to the vibration of the speaker, and to suppress the influence of the vibration of the outer panel on the original sound of the speaker. It can be improved.

  The mounting structure of the above-mentioned in-vehicle speaker is such that a speaker mounting hole is formed in the inner panel, and the speaker mounting surface and the outer panel provided at the periphery of the mounting hole are simply connected by a connecting portion. The rigidity of can be improved. Therefore, a speaker mounting hole can be formed at a desired location on the inner panel, and the degree of freedom of the speaker mounting position with respect to the inner panel is high.

It is the schematic side view which looked at the side panel of the vehicle rear part from the vehicle interior side about the mounting structure of the vehicle-mounted speaker which concerns on Embodiment 1. FIG. It is arrow (II)-(II) schematic sectional drawing of FIG. It is a schematic explanatory drawing explaining the formation method of a connection part about the mounting structure of the vehicle-mounted speaker which concerns on Embodiment 1. FIG.

  Embodiments of an on-vehicle speaker mounting structure according to the present invention will be described below with reference to the drawings. In the figure, the same reference numerals indicate the same names.

Embodiment 1
In the first embodiment, an in-vehicle speaker mounting structure 1 disposed at the rear of the vehicle will be described with reference to FIGS. The rear portion of the vehicle includes left and right side panels 100, a roof panel (not shown) disposed between the upper ends of the left and right side panels 100, and a floor panel (shown between the lower ends of the left and right side panels 100). (Not shown) and the passenger compartment is formed. FIG. 1 illustrates the right rear side of the vehicle. The side panel 100 is formed with a rear door opening 100a and a quarter window opening 100b at the rear upper part of the rear door opening 100a. Is provided. The speaker 90 is attached to the quarter panel 10.

  As shown in FIG. 2, the quarter panel 10 includes a quarter inner panel 12 (hereinafter referred to as “inner panel”) and a quarter outer panel 14 (hereinafter referred to as “outer panel”) disposed outside the inner panel 12. Composed. The inner panel 12 and the outer panel 14 are joined to the upper end portion of the quarter panel 10 along the lower flange 100bf (FIG. 1) of the quarter window opening 100b. The lower end portion of the quarter panel 10 forms a rear wheel house 200 as shown in FIG.

[In-vehicle speaker mounting structure]
As shown in FIG. 2, the in-vehicle speaker mounting structure 1 of Embodiment 1 includes an inner panel 12 having a mounting hole 12h for the speaker 90, an outer panel 14 that forms a space between the inner panel 12, and a mounting hole 12h. And a mounting surface 12m of the speaker 90 provided on the periphery. The main features of the in-vehicle speaker mounting structure 1 according to the first embodiment are a connecting portion 20 provided to bridge between the mounting surface 12m of the speaker 90 and the outer panel 14, and an end portion of the connecting portion 20. And a joining portion 30 that joins the outer panel 14. Details will be described below.

Inner panel The inner panel 12 is made of, for example, a sheet metal member such as a steel plate, and has a mounting hole 12 h for the speaker 90. The attachment hole 12h can be provided corresponding to the size and shape of the speaker 90 to be attached. Further, the mounting holes 12h can be provided corresponding to the number of speakers 90 and a desired location. In this example, one circular mounting hole 12h is provided.

  The inner panel 12 has a mounting surface 12m of the speaker 90 on the periphery of the mounting hole 12h. In this example, a pedestal is formed along the periphery of the mounting hole 12h, and the mounting surface 12m is formed by the surface of this pedestal. An insertion hole (not shown) through which a fixing portion 96 (FIG. 1) such as a bolt for fixing the speaker 90 to the inner panel 12 is inserted is formed in the mounting surface 12m.

  Here, the speaker 90 attached to the inner panel 12 includes a speaker main body 92 and an attachment flange 94 protruding outward from the outer edge of the speaker main body 92 as shown in FIGS. The mounting flange 94 is formed with an insertion hole (not shown) through which a fixing portion 96 such as a bolt for fixing the speaker 90 to the inner panel 12 is inserted. The insertion hole of the attachment flange 94 is provided corresponding to the insertion hole of the attachment surface 12m of the inner panel 12. In this example, three insertion holes are provided so as to be substantially equally spaced in the circumferential direction of the speaker 90. As described in Patent Document 1, the speaker 90 can have a speaker body and a mounting flange as separate members.

  The insertion hole of the mounting surface 12m (inner panel 12) and the insertion hole of the mounting flange 94 (speaker 90) are aligned, and a fixing portion 96 (FIG. 1) such as a bolt is inserted and fixed into both insertion holes. Thus, the speaker 90 is fixed to the inner panel 12.

-Outer panel The outer panel 14 is comprised, for example with sheet metal members, such as a steel plate, and is arrange | positioned rather than the inner panel 12 at the vehicle outer side. A space for storing the speaker 90 and the like is formed between the inner panel 12 and the outer panel 14 (see FIG. 2).

-Connection part The connection part 20 is comprised, for example with sheet metal members, such as a steel plate, and is provided so that the attachment surface 12m of the inner panel 12 and the outer panel 14 may be bridged. In this example, the connecting portion 20 is configured by a part of the inner panel 12. That is, the connecting portion 20 is a portion where the inner panel 12 extends toward the outer panel 14 from a part of the periphery of the mounting hole 12 h of the inner panel 12.

  The connecting portion 20 includes a linear portion 22 that extends from the inner panel 12 toward the outer panel 14, and a bent portion 24 that is bent with respect to the linear portion 22 and is disposed along the inner surface of the outer panel 14. The connecting portion 20 has an L-shaped cross section with a linear portion 22 and a bent portion 24.

  The linear portion 22 is preferably substantially perpendicular to the outer panel 14. If it does so, the force which acts on the outer panel 14 can be disperse | distributed to the inner panel 12 effectively, and it is easy to improve the surface rigidity of the outer panel 14. FIG. For example, when the outer panel 14 is disposed at an angle with respect to the inner panel 12 (the outer panel 14 is inclined), the linear portion 22 is substantially perpendicular to the outer panel 14 and is opposed to the inner panel 12. Will be arranged with a non-right angle.

  The bent portion 24 has a joint surface 24m that joins the inner surface of the outer panel 14 on the outer panel 14 side. The joint surface 24m of the bent portion 24 and the inner surface of the outer panel 14 are joined by a joint portion 30 described later. Since the connecting portion 20 includes the bent portion 24, a relatively wide joining surface 24m can be secured, and thus the connecting portion 20 and the outer panel 14 can be easily joined and more firmly joined. 2 and 3, for convenience of explanation, a gap is provided between the joint surface 24m of the bent portion 24 and the inner surface of the outer panel 14. However, in reality, the gap does not substantially exist because both surfaces are joined.

  A reinforcing bead portion 20 b is formed in the connecting portion 20 so as to extend in a direction from the inner panel 12 toward the outer panel 14. By forming the reinforcing bead portion 20b, the connecting portion 20 can be reinforced, and bending due to the force from the inner panel 12 and the outer panel 14 can be suppressed. Examples of the reinforcing bead portion 20b include a concave portion having a V-shaped cross section partially having a mountain fold portion or a valley fold portion, a concave portion having a curved cross section, and the like. In this example, one reinforcing bead 20 b is formed continuously from the linear portion 22 to the bent portion 24. Two or more reinforcing beads 20b can be formed. For example, a plurality may be formed in parallel from the linear portion 22 to the bent portion 24, or a plurality may be intermittently formed from the linear portion 22 to the bent portion 24. Moreover, you may form only in the linear part 22. FIG.

  In addition to the reinforcing bead portion 20b, the connecting portion 20 can also be formed with an insertion hole through which the wiring of the speaker 90 is inserted, for example.

  In this example, one connecting portion 20 is provided on the lower side of the speaker 90, but may be provided at any position in the circumferential direction of the speaker 90 as long as it is continuous with the mounting surface 12m of the speaker 90. Two or more can be provided.

  Moreover, in this example, although the connection part 20 was made into the cross-sectional L-shape provided with the linear part 22 and the bending part 24, it can also be made into the cross-section I character provided with only a linear part. In this case, the front end surface of the linear portion serves as a joint surface that joins the inner surface of the outer panel 14.

-Joining part The joining part 30 joins the joining surface 24m of the connecting part 20 and the inner surface of the outer panel 14. Examples of the bonding part 30 include an elastic adhesive such as a mastic sealer. By using an elastic adhesive, vibration of the speaker 90 is absorbed, and sound leakage of the speaker 90 to the outside of the vehicle can be easily suppressed.

(Formation method)
A construction method of the above-described in-vehicle speaker mounting structure 1 will be described with reference to FIG. First, the inner panel 12 is punched into a predetermined shape by punching (FIG. 3A). At that time, the attachment hole 12h of the speaker 90 is formed, and the long piece 220 to be the connecting portion 20 is left. Specifically, the long piece 220 is left inside the attachment hole 12h in a state where a part of the periphery of the attachment hole 12h and one end of the long piece 220 are continuous. When the long piece 220 is bent to the outer panel 14 side (bending will be described later), the long piece 220 can bridge between the inner panel 12 and the outer panel 14, and has a length at which the end can be joined to the outer panel 14. To remain. In this example, it is a substantially strip-shaped long piece. Next, the inner panel 12 in which the mounting holes 12h and the long pieces 220 are formed is plastically deformed into a predetermined shape by press working (FIG. 3A). Specifically, the mounting surface 12m of the speaker 90 is formed on the periphery of the mounting hole 12h, the reinforcing bead 20b is formed on the long piece 220, or the distal end of the long piece 220 is bent into an L shape. The linear portion 22 and the bent portion 24 (FIG. 3B) are formed. Next, the long piece 220 is bent toward the outer panel 14 (FIG. 3B). Finally, the joining surface 24m of the long piece 220 (bending portion 24) and the inner surface of the outer panel 14 are joined by the joining portion 30 (FIG. 2).

  When the mounting structure 1 for the in-vehicle speaker is constructed, the speaker main body 92 is accommodated in the mounting hole 12h of the inner panel 12, and fixed to the insertion hole of the mounting surface 12m (inner panel 12) and the insertion hole of the mounting flange 94 96 is inserted and fixed. Since the inner panel 12 is provided with attachment holes and work holes (not shown) for other components in addition to the insertion holes 12h of the speaker 90, wiring of the speaker 90 is performed using these work holes and the like. It can be carried out. Each hole formed in the inner panel 12 is covered from the vehicle interior side by a trim material (not shown) after the work is completed.

〔effect〕
The in-vehicle speaker mounting structure 1 according to the first embodiment is configured such that the connecting portion 20 is configured by the inner panel 12, specifically, from the periphery of the mounting hole 12 h (the mounting surface 12 m) of the inner panel 12 toward the outer panel 14. Since it is extended and provided (FIG. 2), the inner panel 12 and the outer panel 14 can be joined only through the joining part 30, and the surface rigidity of the outer panel 14 is easily improved.

  The in-vehicle speaker mounting structure 1 of Embodiment 1 uses a portion that is originally discarded when the mounting hole 12h of the speaker 90 is formed in the inner panel 12 as the connecting portion 20 (FIG. 3A). ), Excellent in productivity. Further, when forming the mounting hole 12h of the speaker 90 in the inner panel 12, the connecting portion 20 leaves the long piece 220 to be the connecting portion 20 to have a desired shape, and the long piece 220 is placed in the outer panel 14. The inner panel 12 and the outer panel 14 can be easily joined by simply bending to the side (FIG. 3B), and the productivity is excellent.

<< Embodiment 2 >>
In Embodiment 1, although the connection part 20 demonstrated the form comprised by a part of inner panel 12, the separate part independent of the inner panel 12 may be sufficient as a connection part. The connecting portion is, for example, a linear portion that bridges between the inner panel 12 and the outer panel 14, and is bent with respect to the linear portion on the outer panel 14 side of the linear portion, and is disposed along the inner surface of the outer panel 14. A form including a first bent portion and a second bent portion that is bent with respect to the linear portion on the inner panel 12 side of the linear portion and is disposed along the mounting surface 12m of the inner panel 12 is given. It is done. The first bent portion has a joint surface joined to the inner surface of the outer panel 14 and is joined to the outer panel 14 by a joint portion 30 such as an elastic adhesive. The second bent portion has a joint surface to be joined to the mounting surface 12m of the inner panel 12, and is joined to the inner panel 12 by a joint portion such as an elastic adhesive.

  The mounting structure of the in-vehicle speaker according to the second embodiment does not require a long piece to remain when the mounting hole 12h of the speaker 90 is formed in the inner panel 12. For example, a plurality of connecting portions are provided in the circumferential direction of the speaker 90. Cheap.

  The mounting structure for a vehicle-mounted speaker according to the present invention can be suitably used when a speaker is mounted on an inner panel such as a quarter panel.

1 In-vehicle speaker mounting structure 10 Quarter panel 12 Inner panel (quarter inner panel) 12h Mounting hole 12m Mounting surface 14 Outer panel (quarter outer panel)
DESCRIPTION OF SYMBOLS 20 Connection part 220 Long piece 20b Reinforcement bead part 22 Linear part 24 Bending part 24m Joining surface 30 Joining part 90 Speaker 92 Speaker main body 94 Mounting flange 96 Fixing part 100 Side panel 100a Rear door opening part 100b Quarter window opening part 100bf Lower side Flange 200 Rear wheel house

Claims (1)

An inner panel having speaker mounting holes;
An outer panel disposed outside the inner panel and forming a space with the inner panel;
A mounting surface of a speaker provided at the periphery of the mounting hole;
A connecting portion provided to bridge between the mounting surface and the outer panel;
An in-vehicle speaker mounting structure comprising: a joining portion that joins an end portion of the connecting portion and the outer panel.

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