Speaker fitting structure for vehicle

Abstract

To provide a speaker fitting structure for a vehicle which can suppress deterioration of sound quality and sound crack of speaker sound without a reinforcement member to support weight of the speaker.SOLUTION: A speaker fitting structure for a vehicle includes a speaker 50 mounted on a top surface 11 at one end part of an upper panel 4 in a vehicle width direction. The upper panel 4 includes at one end part of the upper panel 4 in the vehicle width direction: a first fixing part 25 which is fixed to a dash side panel 6; second fixing parts 30, 31 which are fixed to a cowl upper panel 7 at a front side relative to the first fixing part 25 and at the other end side in the vehicle width direction; and a third fixing part 22 which is fixed to a lower panel 5 at the other end side in the vehicle width direction relative to the second fixing parts 30, 31 and at the rear side relative to the first fixing part 25. The speaker 50 is arranged between the first fixing part 25 and the third fixing part 22 in the vehicle width direction and arranged between the second fixing parts 30, 31 and the third fixing part 22 in the vehicle longitudinal direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a speaker mounting structure for a vehicle. [Background technology]

[0002] 2. Description of the Related Art There is known an instrument panel structure in which a head-up display device, which is one type of electronic device, is attached to a top surface of an instrument panel extending in the vehicle width direction.

[0003] For example, in Patent Document 1, an opening for attaching and detaching a head-up display device is provided on the top surface of an instrument panel extending in the vehicle width direction, and the head-up display device is attached to the inside of the instrument panel through this opening. This head-up display device is fastened and fixed to an instrument panel member (steering support member), which is a vehicle body member located at a distance, using an instrument panel core, which is a metal plate member with a curved cross section that functions as a reinforcing member, thereby increasing the mounting rigidity.

[0004] In this way, the head-up display device is fastened to the instrument panel member located at a distance via the instrument panel core, which is a reinforcing member, thereby increasing the mounting rigidity of the head-up display device when it is installed. The same applies when a speaker, which is one of the electronic devices, is mounted on the top surface of the instrument panel, and the speaker is also fixed to the steering support member, which is a vehicle body member, via a metal stay. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2018-52291 Summary of the Invention [Problem to be solved by the invention]

[0006] Typically, heavy electronic devices need to be placed as close as possible to a steering support member, which is a vehicle body component, and secured to the steering support member. However, when the electronic device is secured to a steering support member located at a distance via an instrument panel core or stay, as in the instrument panel structure disclosed in Patent Document 1, the instrument panel core or stay may undesirably restrict the placement of air ducts and other components located inside the instrument panel. On the other hand, when a speaker is attached to the instrument panel without using an instrument panel core or stay, if the attachment point of the speaker on the instrument panel is not strong enough, the entire speaker may vibrate as the speaker generates sound, potentially resulting in distortion and a deterioration in sound quality.

[0007] Therefore, an object of the present invention is to provide a speaker mounting structure for a vehicle that does not require a dedicated reinforcing member to support the load of the speaker and can suppress deterioration in the quality of the speaker sound and distortion. [Means for solving the problem]

[0008] One aspect of the present invention is an instrument panel having an upper panel extending in the vehicle width direction and a lower panel disposed below the upper panel, a dash side panel disposed at one end of the instrument panel in the vehicle width direction and fixed to the vehicle body, a cowl upper panel disposed at the front side of the instrument panel and fixed to the vehicle body, and a speaker attached to the one end of the top surface of the upper panel in the vehicle width direction, wherein the lower panel is a vehicle speaker fixed to a steering support member fixed to the vehicle body. The cowl mounting structure has, at one end of the upper panel in the vehicle width direction, a first fixing portion fixed to the dash side panel, a second fixing portion fixed to the cowl upper panel further forward of the first fixing portion and at the other end of the vehicle width direction than the first fixing portion, and a third fixing portion fixed to the lower panel further forward of the second fixing portion and at the other end of the vehicle width direction than the first fixing portion, and the speaker is arranged between the first fixing portion and the third fixing portion in the vehicle width direction, and between the second fixing portion and the third fixing portion in the vehicle fore-and-aft direction. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a speaker mounting structure for a vehicle that does not require a dedicated reinforcing member to support the load of the speaker and can suppress deterioration in the quality of the speaker sound and distortion. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view showing the arrangement of components at one end of an instrument panel in a vehicle width direction in a speaker mounting structure for a vehicle according to an embodiment of the present invention; [Figure 2] 1 is a perspective view showing one end side in the vehicle width direction of an instrument panel in a speaker mounting structure for a vehicle according to an embodiment of the present invention; [Figure 3] 1 is a plan view showing one end side in a vehicle width direction of an instrument panel in a speaker mounting structure for a vehicle according to an embodiment of the present invention. [Figure 4A]2 is an enlarged perspective view of one end side in the vehicle width direction of the instrument panel in the speaker mounting structure for a vehicle according to the present embodiment, viewed from the other end side. FIG. [Figure 4B] 1 is an enlarged perspective view of one end side in the vehicle width direction of an instrument panel in a speaker mounting structure for a vehicle according to an embodiment of the present invention, as viewed from the one end side. [Figure 4C] 2 is a perspective view of a fixed base portion in the speaker mounting structure for a vehicle according to the embodiment; FIG. [Figure 5A] 1 is an enlarged perspective view of one end side of an instrument panel in a vehicle width direction in a speaker mounting structure for a vehicle according to an embodiment of the present invention, viewed from below. [Figure 5B] 2 is an enlarged perspective view of one end side in the vehicle width direction of the cowl upper panel in the speaker mounting structure for a vehicle according to the present embodiment, as viewed from the front. FIG. [Figure 6] 1 is a perspective view showing a state in which an upper panel is removed in a speaker mounting structure for a vehicle according to an embodiment of the present invention; [Figure 7] 1 is a front view of an instrument panel with a cowl upper panel removed in a speaker mounting structure for a vehicle according to an embodiment of the present invention; [Figure 8] 1 is a side view of a speaker mounting structure for a vehicle according to an embodiment of the present invention, with a dash side panel removed; [Figure 9] 1 is a plan view showing one end side in the vehicle width direction of a speaker mounting structure for a vehicle according to an embodiment of the present invention with an instrument panel removed. DETAILED DESCRIPTION OF THE INVENTION

[0011] A speaker mounting structure 2 for a vehicle according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the engine compartment side of an instrument panel 3 of the speaker mounting structure is referred to as the front side, the interior side of the vehicle compartment of the instrument panel 3 as the rear side, and the left side, which is one end of the vehicle width direction when the instrument panel 3 is viewed from the interior of the vehicle compartment, will be referred to as the one end side or left side, and the right side, which is the other end of the vehicle width direction, will be referred to as the other end side or right side. In the drawings, arrow Fr indicates the front in the vehicle longitudinal direction, arrow L indicates the left side when an occupant looks forward, and arrow U indicates the upper side of the vehicle. One end of the vehicle width direction will sometimes be simply referred to as the "one end," and the other end of the vehicle width direction will sometimes be simply referred to as the "other end." The surface of the instrument panel 3 facing the interior of the vehicle compartment will sometimes be referred to as the interior side, and the surface of the instrument panel 3 facing the engine compartment will sometimes be referred to as the rear side.

[0012] First, a vehicle speaker mounting structure 2 according to this embodiment will be described with reference to Figures 1 to 3. Figure 1 is a perspective view showing the arrangement of components at one end of a vehicle width direction of an instrument panel in the vehicle speaker mounting structure according to this embodiment, showing a state before the components are assembled together. Figure 2 is a perspective view showing the left side, which is one end of the vehicle width direction, of the instrument panel 3 in the vehicle speaker mounting structure 2 according to this embodiment, and Figure 3 is a plan view of the left side, which is one end of the vehicle width direction, of the instrument panel 3 in the vehicle speaker mounting structure 2 according to this embodiment, viewed from above. Note that Figures 1 to 3 show a state in which a cover member 45, which will be described later and which covers the top of a speaker 50 mounted on the instrument panel 3, has been removed.

[0013] As shown in FIG. 1, a vehicle speaker mounting structure 2 includes an instrument panel 3 extending in the vehicle width direction, a dash side panel 6 disposed at one end of the instrument panel 3 in the vehicle width direction, and a cowl upper panel 7 (not shown in FIG. 2) disposed on the vehicle front side of the instrument panel 3. The instrument panel 3 includes an upper panel 4 disposed at the front side and a lower panel 5 disposed below the upper panel 4. The dash side panel 6 and the cowl upper panel 7 are fixed to the vehicle body. The upper panel 4 and the lower panel 5 are made of resin, while the dash side panel 6 and the cowl upper panel 7 are made of metal. Therefore, the metallic dash side panel 6 and the cowl upper panel 7 fixed to the vehicle body form a vehicle body structure and are more rigid than the resin upper panel 4 and lower panel 5. One end of the upper panel 4 in the vehicle width direction is fixed to the dash side panel 6 by a fixing bracket 25 provided at one end of the upper panel 4. The front portion of the upper panel 4 is fixed to the cowl upper panel 7 via two upper ribs 30 and two lower ribs 31, which will be described later. The lower panel 5 is fixed to a steering support member 8, which is fixed to the vehicle body, and the steering support member 8 forms the vehicle body structure. In the drawings, the upper panel 4, lower panel 5, dash side panel 6, cowl upper panel 7, and steering support member 8 are shown with thicker lines than the other parts to make their outlines clearer.

[0014] A storage section 12 for storing a speaker 50 is provided at one end of the top surface 10 of the upper panel 4. The storage section 12 is formed in a concave shape on the top surface 11, which is the interior side of the top surface 10. The storage section 12 is substantially rectangular in plan view, and has a side wall 13 and a bottom wall 14. One end of the side wall 13 is open and formed in a C-shape in plan view, and the bottom wall 14 is formed in a substantially rectangular shape in plan view.

[0015] A generally rectangular top opening 16 is formed on the upper side of the storage section 12, and a concave recess 15 (see FIG. 5A) is provided in the bottom wall 14. The recess 15 has an annular recess side wall 15a (see FIG. 5A) and a recess bottom wall 15b (see FIG. 5A). A generally circular bottom opening 17 (see FIG. 5A) is formed in the recess bottom wall 15b and penetrates the recess bottom wall 15b. A cover member 45 (see FIG. 4B) that covers the top opening 16 is provided on the top opening 16.

[0016] Two fixed seating surfaces 21 for fixing the speaker 50 are provided on the interior side of the bottom wall 14. The two fixed seating surfaces 21 are arranged so as to be positioned in opposite directions from each other across the bottom opening 17. Each of the two fixed seating surfaces 21 is provided with a screw hole into which a bolt used to fix the speaker 50 is screwed.

[0017] The speaker 50 has a circular speaker body 51 and a generally diamond-shaped speaker bracket 52. The speaker body 51 is disposed in the center of the speaker bracket 52. Two bolt holes 53 are provided in the speaker bracket 52, and the two bolt holes 53 are disposed in opposite directions relative to each other across the speaker body 51. The speaker 50 is fixed to the bottom wall 14 by threading bolts passed through the two bolt holes 53 into the threaded portions of two fixing bearing surface portions 21 provided on the bottom wall 14. The bolt holes 53 are bolt fixing portions of the present invention.

[0018] Next, with reference to FIGS. 4A to 4C, a fixing structure between one end of the instrument panel 3 and the dash side panel 6 will be described. FIG. 4A is an enlarged perspective view of one end of the instrument panel 3 in the vehicle speaker mounting structure according to this embodiment, viewed from above the other end. FIG. 4B is an enlarged perspective view of one end of the instrument panel 3 in the vehicle speaker mounting structure according to this embodiment, viewed from above the one end. FIG. 4C is a perspective view of the vehicle body-side base portion 26 in the vehicle speaker mounting structure according to this embodiment. As described above, the dash side panel 6 is fixed to the vehicle body, forming a vehicle body structure. An L-shaped fixing bracket 25 is provided at one end of the upper panel 4, which constitutes a part of the instrument panel 3. Specifically, the fixing bracket 25 is provided on one end wall formed at one end of the upper panel 4. The fixing bracket 25 has a plate-like inclined surface 25a that faces rearward in the vehicle longitudinal direction and slopes downward toward the rear of the vehicle, and a plate-like lower surface 25b that extends rearward from the lower end of the inclined surface 25a. A bolt hole is formed in the inclined surface 25a.

[0019] A vehicle body-side base portion 26 is provided on the other end surface of the dash side panel 6, which is the other end in the vehicle width direction. As shown in FIG. 4B , the vehicle body-side base portion 26 has an upper surface portion 26a that faces upward and is disposed on the upper side, a rear surface portion 26b that faces rearward in the vehicle front-rear direction and is disposed on the vehicle rear side, and a side surface portion 26c that faces one end in the vehicle width direction and is disposed on one end in the vehicle width direction. The upper edge of the rear surface portion 26b is connected to the rear edge of the upper surface portion 26a, the upper edge of the side surface portion 26c is connected to one end edge in the vehicle width direction of the upper surface portion 26a, and the rear edge of the side surface portion 26c is connected to one end edge in the vehicle width direction of the rear surface portion 26b. The rear surface portion 26b slopes toward the rear of the vehicle as it extends from top to bottom, and a screw hole is provided in the center of the rear surface portion 26b. Note that instead of the screw hole, a nut may be fixed to the front surface of the rear surface portion 26b by welding. The vehicle body side base portion 26 is made of metal, and a side surface portion 26c is fixed by spot welding to the other end surface of the dash side panel 6. The vehicle body side base portion 26 has three sides and a three-dimensional shape, which improves rigidity.

[0020] One end of the upper panel 4 is fixed to the dash side panel 6 by threading a bolt, which is a fastening member, through a bolt hole provided in the fixing bracket 25 into a screw hole provided in the vehicle body-side base portion 26. By fixing one end of the upper panel 4 to the dash side panel 6, which is a vehicle body structure, the mounting rigidity of one end of the upper panel 4 is increased. In addition, the sloped portion 25a of the fixing bracket 25 faces rearward in the vehicle longitudinal direction and slopes toward the rear of the vehicle as it extends from top to bottom, thereby improving the ease of assembly when assembling the upper panel 4 to the dash side panel 6. The fixing bracket 25 is the first fixing portion of the present invention. The center of the bolt hole provided in the sloped portion 25a of the fixing bracket 25 is referred to as the location of the first fixing portion.

[0021] Next, the fixing structure between the front portion of the upper panel 4 and the cowl upper panel 7 will be described with reference to Figures 5A, 5B, and 6. Figure 5A is an enlarged perspective view of the front portion of one end in the vehicle width direction of the instrument panel 3 in the vehicle speaker mounting structure according to this embodiment, as viewed from below. Figure 5B is an enlarged perspective view of the rear portion of one end in the vehicle width direction of the cowl upper panel 7 in the vehicle speaker mounting structure according to this embodiment, as viewed from the front. Figure 6 is a perspective view showing the vehicle speaker mounting structure 2 with the upper panel 4 removed. As described above, the cowl upper panel 7 is fixed to the vehicle body, forming a vehicle body structural body.

[0022] Two upper ribs 30 and two lower ribs 31 for fixing the upper panel 4 to the cowl upper panel 7 are provided adjacent to the storage section 12 on the lower surface (rear side surface) of the front part of one end portion in the vehicle width direction of the upper panel 4. Specifically, the two upper ribs 30 extending in the front-rear direction are arranged at a predetermined interval in the vehicle width direction. The two upper ribs 30 are connected to the lower surface (rear side surface) 10a of the top surface 10 of the upper panel 4 and the outer peripheral surface (rear side surface) 13a of the side wall portion 13 of the storage section 12. The lower rib 31 is arch-shaped in the vehicle width direction and connects to the lower surface (rear side surface) 14a of the bottom wall portion 14 and the outer peripheral surface (rear side surface) 15c of the annular recess side wall portion 15a of the recess 15 so that its convex side faces upward. A slight clearance is provided between the two upper ribs 30 and the lower rib 31 in the vertical direction, and the two upper ribs 30 and the lower ribs 31 are arranged so as to overlap in the vehicle width direction. A protruding piece 32 (see FIG. 6) protruding toward the rear of the vehicle is provided with a predetermined width in the vehicle width direction on a rear edge 7a (see FIG. 6) of one end in the vehicle width direction of the cowl upper panel 7. The protruding piece 32 provided on the rear edge 7a of one end in the vehicle width direction of the cowl upper panel 7 is sandwiched in the clearance between the two upper ribs 30 and the lower rib 31 via a buffer member 23 (see FIG. 5B), whereby the front part of one end in the vehicle width direction of the upper panel 4 is fixed to the cowl upper panel 7.

[0023] Two upper ribs 30 and two lower ribs 31 for fixing the upper panel 4 to the cowl upper panel 7 are provided adjacent to the storage portion 12, and a protruding piece 32 of the cowl upper panel 7 is sandwiched in the clearance between the two upper ribs 30 and the lower rib 31 via the buffer member 23, thereby fixing the front portion of one end of the upper panel 4 in the vehicle width direction to the cowl upper panel 7. Therefore, the mounting rigidity of the front portion of one end of the upper panel 4 in the vehicle width direction is increased. In addition, the two upper ribs 30 provided adjacent to the storage portion 12 connect the lower surface 10a of the top surface 10 of the upper panel 4 to the outer peripheral surface 13a of the side wall portion 13 of the storage portion 12, and the lower rib 31 connects the lower surface 14a of the bottom wall portion 14 to the outer peripheral surface 15c of the annular recess side wall portion 15a of the recess 15, thereby also increasing the rigidity of the storage portion 12. In addition, since the protruding piece 32 of the cowl upper panel 7 is clamped in the clearance between the two upper ribs 30 and the lower rib 31 via the buffer member 23, the transmission of vibrations in the medium to high frequency range from the vehicle body while in motion can be suppressed.

[0024] The two upper ribs 30 and the two lower ribs 31 are the engaging portion of the present invention and also the second fixing portion. The protruding piece 32 is the engaged portion of the present invention. In the clearance between the two upper ribs 30 and the lower rib 31, the middle of the two upper ribs 30 in the vehicle width direction and the middle of the two upper ribs 30 in the front-to-rear direction is represented as the location of the second fixing portion.

[0025] Next, a fixing structure between the rear portion of the upper panel 4 and the lower panel 5 will be described with reference to FIGS. 6 and 7. FIG. 6 is a perspective view showing one end of the lower panel 5 in a state in which the upper panel 4 has been removed from the instrument panel 3 in the vehicle speaker mounting structure according to this embodiment. FIG. 7 is a front view of the instrument panel 3 in a state in which the cowl upper panel 7 has been removed, as viewed from the front, in the vehicle speaker mounting structure according to this embodiment. The upper portion of one end of the lower panel 5 is fixed to a steering support member 8 that is disposed forward of the lower panel 5, fixed to the vehicle body, and extends in the vehicle width direction. The steering support member 8 constitutes a vehicle body structure. When the instrument panel 3 including the lower panel 5 is viewed from inside the vehicle cabin, the steering support member 8 is hidden in front of the lower panel 5 and is positioned in an invisibly visible position. The steering support member 8 is made of metal and has high rigidity. 7, the steering support member 8 has a first metal stay portion 8a provided at one end of the steering support member 8, and a second metal stay portion 8b provided closer to the other end in the vehicle width direction than the first stay portion 8a. The first stay portion 8a and the second stay portion 8b are formed to extend in the vertical direction.

[0026] As shown in FIGS. 6 and 7 , two connection portions 33 are provided at an upper portion of one end of the lower panel 5, and are aligned vertically and spaced a predetermined distance apart in the vehicle width direction. The two connection portions 33 are located rearward of the position of the fixing bracket 25, which is a first fixing portion. Of the two connection portions 33, the connection portion 33 located at the other end in the vehicle width direction is located closer to the other end in the vehicle width direction than the positions of the two upper ribs 30 and lower ribs 31, which are second fixing portions. In FIG. 6 , the fixing bracket 25 and the two upper ribs 30 and lower ribs 31 are not shown, but the vehicle body-side base portion 26 is located at approximately the same position as the fixing bracket 25, and the protruding piece 32 is located at approximately the same position as the two upper ribs 30 and lower ribs 31. Of the two connection portions 33, the connection portion 33 located at one end in the vehicle width direction is fixed to the first stay portion 8a via a bolt, and the connection portion 33 located at the other end in the vehicle width direction is fixed to the second stay portion 8b via a bolt. The upper part of one end of the lower panel 5 is fixed to the first stay portion 8a and the second stay portion 8b of the steering support member 8, which is a vehicle body structure, thereby increasing the mounting rigidity of the upper part of one end of the lower panel 5.

[0027] A panel bearing surface portion 22 (see FIG. 2) for fixing the upper panel 4 to the lower panel 5 is provided at one end of the upper panel 4 in the vehicle width direction. A screw hole is provided in the panel bearing surface portion 22. A panel side base portion 34 for fixing the upper panel 4 to the lower panel 5 is provided at one end of the lower panel 5 in the vehicle width direction. A screw hole is provided in the panel side base portion 34 for fixing the upper panel 4 to the lower panel 5. One end of the upper panel 4 is fixed to the lower panel 5 by threading a screw through the screw hole provided in the panel bearing surface portion 22 of the upper panel 4 into the screw hole provided in the panel side base portion 34. The panel bearing surface portion 22 is a third fixing portion of the present invention. The center of the screw hole provided in the panel bearing surface portion 22 is represented as the location of the third fixing portion.

[0028] The panel seating surface portion 22 is disposed closer to the other end in the vehicle width direction than the positions of the two upper ribs 30 and the lower rib 31, which are the second fixing portions, and is disposed closer to the rear of the position of the fixing bracket 25, which is the first fixing portion. Specifically, the center of the screw hole provided in the panel seating surface portion 22 is disposed closer to the other end in the vehicle width direction than the position that is the middle in the vehicle width direction and the middle in the front-to-rear direction between the two upper ribs 30 and the lower rib 31 in the clearance between them. Furthermore, the center of the screw hole provided in the panel seating surface portion 22 is disposed closer to the rear of the vehicle than the center of the bolt hole provided in the inclined surface portion 25a of the fixing bracket 25. Furthermore, the screw hole provided in the panel-side base portion 34, which is disposed at a position overlapping with the screw hole provided in the panel seating surface portion 22, is disposed near the connecting portion 33 that is disposed at the other end in the vehicle width direction out of the two connecting portions 33, and is disposed closer to the front of the two connecting portions 33. Therefore, the two connection portions 33 are positioned rearward of the vehicle from the center of the bolt hole provided in the fixing bracket 25, which is the first fixing portion, and the center of the screw hole provided in the panel seat portion 22, which is the third fixing portion.

[0029] The two connection portions 33 of the lower panel 5 are fixed to the first stay portion 8a and the second stay portion 8b of the steering support member 8, which is a vehicle body structure. Therefore, the panel seat portion 22 is fixed to the panel side base portion 34 located near the connection portions 33 located on the other end side, thereby increasing the mounting rigidity of the panel seat portion 22 of the lower panel 5.

[0030] 3, in a plan view of the upper panel 4 viewed from above, the speaker 50 is disposed inside a triangle formed by three imaginary lines connecting the fixing bracket 25 (first fixing portion), the two upper ribs 30 and the lower rib 31 (second fixing portion), and the panel seating surface 22 (third fixing portion). Furthermore, when the speaker 50 is fixed to the bottom wall 14, each of the two bolt holes 53 provided in the speaker bracket 52 of the speaker 50 is disposed inside the triangle formed by the three imaginary lines connecting the fixing bracket 25 (first fixing portion), the two upper ribs 30 and the lower rib 31 (second fixing portion), and the panel seating surface 22 (third fixing portion).

[0031] The mounting rigidity of each of fixing bracket 25, which is the first fixing portion, two upper ribs 30 and lower rib 31, which are the second fixing portion, and panel seating surface 22, which is the third fixing portion, is higher than the rigidity of other portions of upper panel 4, which is made of resin. Therefore, speaker 50, which is placed inside the triangle formed by three imaginary lines connecting fixing bracket 25, which is the first fixing portion, two upper ribs 30 and lower rib 31, which are the second fixing portion, and panel seating surface 22, which is the third fixing portion, can suppress deterioration in the quality of the speaker sound and distortion without the need for a special reinforcing member dedicated to supporting the load of speaker 50.

[0032] Furthermore, when the speaker 50 is fixed to the bottom wall portion 14, each of the two bolt holes 53 provided in the speaker bracket 52 of the speaker 50 is positioned inside a triangle formed by three imaginary lines connecting the fixing bracket 25 as the first fixing portion, the two upper ribs 30 and the lower rib 31 as the second fixing portion, and the panel seat portion 22 as the third fixing portion. Therefore, deterioration in the quality of the speaker sound and distortion can be suppressed without the need to provide a special reinforcing member dedicated to supporting the load of the speaker 50.

[0033] Next, referring to FIGS. 2, 6, 8, and 9, an air conditioning duct disposed below the instrument panel 3 will be described. FIG. 8 is a side view of the vehicle speaker mounting structure according to this embodiment with the dash side panel 6 removed. FIG. 9 is a plan view of the vehicle speaker mounting structure according to this embodiment with the instrument panel 3 removed. As shown in FIGS. 6, 8, and 9, a first air conditioning duct 36 and a second air conditioning duct 37, which are air conditioning ducts, are disposed below the upper panel 4 and in front of the lower panel 5. As shown in FIG. 2, a first air outlet 38 connected to the first air conditioning duct 36 is provided rearward of the speaker 50 at one end of the upper panel 4 in the vehicle width direction. Furthermore, a second air outlet 39 connected to the second air conditioning duct 37 is provided rearward of the speaker 50 and below the first air outlet 38 at one end of the lower panel 5 in the vehicle width direction. The width of the first air outlet 38 in the vehicle width direction and the width of the second air outlet 39 in the vehicle width direction are approximately the same, and the first air outlet 38 and the second air outlet 39 are arranged to overlap in the vehicle width direction. The first air outlet 38 is arranged so that airflow is blown toward the vicinity of the face of an occupant seated in a seat (not shown) located at the front of the vehicle interior. The second air outlet 39 is arranged so that airflow is blown toward the vicinity of the waist of an occupant seated in a seat (not shown) located at the front of the vehicle interior.

[0034] The first air outlet 38 and the second air outlet 39 are arranged so as to at least partially overlap the speaker 50 in the vehicle width direction. Furthermore, the first air outlet 38 and the second air outlet 39 are arranged between at least two connection portions 33 in the vehicle width direction. As shown in FIGS. 8 and 9, the first air conditioning duct 36 and the second air conditioning duct 37 are arranged below the speaker 50 and so as to at least partially overlap the speaker 50 in the vehicle width direction and the vehicle front-rear direction. The first air conditioning duct 36 and the second air conditioning duct 37 are air conditioning ducts of the present invention, and the first air outlet 38 and the second air outlet 39 are air outlets of the present invention.

[0035] In the vehicle speaker mounting structure 2 according to this embodiment, the first air conditioning duct 36 and the second air conditioning duct 37 are disposed below the speaker 50 and so as to overlap at least a portion of the speaker 50 in the vehicle width direction and the vehicle front-to-rear direction, but the speaker 50 can be highly supported without needing to extend a stay from the steering support member 8 to the speaker 50 as in the prior art. This allows for flexible layout of both the speaker 50 and the air conditioning ducts.

[0036] The speaker mounting structure 2 for a vehicle according to this embodiment includes an instrument panel 3 extending in the vehicle width direction, the instrument panel 3 including an upper panel 4 and a lower panel 5 disposed below the upper panel 4, a dash side panel 6 disposed at one end of the instrument panel 3 in the vehicle width direction and fixed to the vehicle body, a cowl upper panel 7 disposed at the front side of the instrument panel 3 and fixed to the vehicle body, and a speaker 50 attached to a top surface 11 that is a side surface inside the vehicle cabin at one end of the upper panel 4 in the vehicle width direction. The lower panel 5 is attached to a steering support member fixed to the vehicle body. The speaker mounting structure for a vehicle is fixed to a lower panel 8, and the upper panel 4 has, at one end in the vehicle width direction of the upper panel 4, a first fixing portion 25 fixed to a dash side panel 6, second fixing portions 30, 31 fixed to the cowl upper panel 7 on the vehicle front side and the other end side in the vehicle width direction of the first fixing portion 25, and a third fixing portion 22 fixed to the lower panel 5 on the other end side in the vehicle width direction of the second fixing portions 30, 31 and the other end side in the vehicle width direction of the first fixing portion 25, and the speaker 50 is arranged between the first fixing portion and the third fixing portion in the vehicle width direction, and is arranged between the second fixing portion and the third fixing portion in the vehicle fore-and-aft direction.

[0037] With this configuration, the speaker 50 can suppress deterioration in the quality of the speaker sound and distortion without the need for a special reinforcing member dedicated to supporting the load of the speaker 50.

[0038] Although the embodiments and modifications of the present invention have been described above, the present invention is not limited to the above-described embodiments and modifications, and further modifications and changes are possible based on the technical concept of the present invention.

[0039] In the vehicle speaker mounting structure according to the present embodiment, the two upper ribs 30 and the two lower ribs 31 provided at the front of one end of the upper panel 4 in the vehicle width direction are the engaging portion of the present invention, and the protruding piece 32 provided at the rear edge of one end of the cowl upper panel 7 in the vehicle width direction is the engaged portion of the present invention. However, this is not necessarily limited to this. For example, a tapered pin may be provided as the engaging portion at the front of one end of the upper panel 4 in the vehicle width direction, and a member having an engaging hole formed therein may be provided at the rear of one end of the cowl upper panel 7 in the vehicle width direction as the engaged portion, and the tapered pin may engage with the engaging hole to fix the front of one end of the upper panel 4 to the rear of the cowl upper panel 7, which is a vehicle body structure. Alternatively, a tapered pin may be provided at the rear of one end of the cowl upper panel 7 in the vehicle width direction, and a member having an engaging hole formed therein may be provided at the front of one end of the upper panel 4. [Explanation of symbols]

[0040] 2...speaker mounting structure for vehicle, 3...instrument panel, 4...upper panel, 5...lower panel, 6...dash side panel, 7...cowl upper panel, 7a...rear edge, 8...steering support member, 8a...first stay portion, 8b...second stay portion, 10...top surface portion, 10a...lower surface (rear side), 11...top surface, 12...storage portion, 13...side wall portion, 13a...outer peripheral surface (rear side), 14...bottom wall portion, 14a...lower surface (rear side), 15...recess, 15a...recess side wall portion, 15b...recess bottom wall portion, 15c...outer peripheral surface (rear side), 16...top surface opening, 17...bottom surface opening, 21 ...Fixed seat portion, 22...Panel seat portion (third fixed portion), 23...Buffer member, 25...Fixed bracket (first fixed portion), 25a...Sloped portion, 25b...Lower surface portion, 26...Vehicle body side base portion, 26a...Upper surface portion, 26b...Rear surface portion, 26c...Side portion, 30...Upper rib (second fixed portion), 31...Lower rib (second fixed portion), 32...Protruding piece, 33...Connection portion, 34...Panel side base portion, 36...First air conditioning duct, 37...Second air conditioning duct, 38...First air outlet, 39...Second air outlet, 45...Cover member, 50...Speaker, 51...Speaker main body, 52...Speaker bracket, 53...Bolt fixing portion

Claims

1. an instrument panel having an upper panel extending in a vehicle width direction and a lower panel disposed below the upper panel; a dash side panel disposed on one end side of the instrument panel in the vehicle width direction and fixed to the vehicle body; a cowl upper panel disposed on the vehicle front side of the instrument panel and fixed to the vehicle body; a speaker attached to one end side of the top surface of the upper panel in the vehicle width direction, The lower panel is a speaker mounting structure for a vehicle that is fixed to a steering support member that is fixed to a vehicle body side, The upper panel is a first fixing portion fixed to the dash side panel; a second fixing portion fixed to the cowl upper panel at a position further forward than the first fixing portion and at the other end in the vehicle width direction; a third fixing portion fixed to the lower panel at a position closer to the other end in the vehicle width direction than the second fixing portion and closer to the rear of the vehicle than the first fixing portion; at one end of the upper panel in the vehicle width direction, A speaker mounting structure for a vehicle, characterized in that the speaker is arranged between the first fixed portion and the third fixed portion in the vehicle width direction, and between the second fixed portion and the third fixed portion in the vehicle fore-and-aft direction.

2. 2. The speaker mounting structure for a vehicle according to claim 1, characterized in that, in a plan view of the upper panel from above, the speaker is positioned inside a triangle formed by three imaginary lines connecting the first fixing portion, the second fixing portion, and the third fixing portion.

3. the speaker is fixed to the upper panel via a plurality of bolt fixing portions provided on a speaker bracket of the speaker, 3. The vehicle speaker mounting structure according to claim 2, wherein the plurality of bolt fixing portions are arranged inside a triangle formed by the three imaginary lines in the plan view.

4. the first fixing portion is a fixing bracket provided at one end of the upper panel in the vehicle width direction, facing rearward in the vehicle front-rear direction, and having an inclined portion that slopes downward toward the rear of the vehicle, a vehicle body-side base portion to which the fixing bracket is attached is provided on a surface of the dash side panel on the upper panel side; the vehicle body-side base portion has an upper surface portion disposed on an upper side, a rear surface portion connected to a rear edge of the upper surface portion, and a side surface portion connected to one end edge of each of the upper surface portion and the rear surface portion in the vehicle width direction, 2. The speaker mounting structure for a vehicle according to claim 1, wherein the inclined surface portion is fixed to the rear surface portion via a fastening member.

5. a storage portion formed in a recessed shape for storing the speaker is provided on one end side of the top surface of the upper panel in the vehicle width direction, the second fixing portion is an engagement portion provided on a rear surface of the storage portion, a rear portion of the cowl upper panel provided with an engaged portion that engages with the engaging portion via a buffer member; 2. The speaker mounting structure for a vehicle according to claim 1, wherein the upper panel is fixed to the cowl upper panel by the engagement between the engaging portion and the engaged portion.

6. The storage section includes a side wall and a bottom wall, and the bottom wall is provided with a recess formed in a concave shape. the recess includes a recess side wall and a recess bottom wall; the engaging portion comprises an upper rib connected to the rear surface of the upper panel and the rear surface of the side wall portion, and a lower rib connected to the rear surface of the bottom wall portion and the rear surface of the recess side wall portion, the engaged portion is a protruding piece provided at a rear edge of one end of the cowl upper panel in the vehicle width direction and protruding toward the rear of the vehicle, 6. The speaker mounting structure for a vehicle according to claim 5, wherein the protruding piece is engaged so as to be sandwiched between the upper rib and the lower rib via a buffer member.

7. An air outlet to which an air conditioning duct is connected is provided at one end of the upper panel in the vehicle width direction, The air outlet is disposed rearward of the speaker and at least partially overlaps with the speaker in the vehicle width direction, the air conditioning duct is disposed below the speaker and at least partially overlaps with the speaker in the vehicle width direction and the vehicle front-rear direction; the lower panel is provided with at least two connection portions spaced a predetermined distance apart in a vehicle width direction, the connection portions being for fixing the lower panel to the steering support member on a vehicle rear side of the first fixing portion and the third fixing portion, the third fixing portion is disposed near one of the at least two connecting portions that is disposed on the other end side in the vehicle width direction, 2. The speaker mounting structure for a vehicle according to claim 1, wherein the air outlet is disposed between the at least two connecting portions in the vehicle width direction.

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