VIBRATION DAMPING STRUCTURE

Abstract

Vibration damping structure in which a partition (2) configured to separate an engine compartment (E) and an interior (R) and an upper trim panel (3) arranged continuously above the partition (2) are provided, wherein a plurality of pedal supports (6, 7) configured to hold pedals (4, 5) rotatable for vehicle operation, attached to the partition (2) and the upper trim panel (3), Reinforcement components (8) are provided in fastening sections (6a, 7a) of the pedal carriers (6, 7), a steering support component (9) located in a rear direction of the vehicle between the partition (2) and the upper trim panel (3), suspended along a vehicle width direction on the interior side, a steering support bracket (10) is installed between the steering support component (9) and the reinforcement components (8), the mounting sections (6a, 7a) of the pedal carriers (6, 7), which are provided side by side in the vehicle width direction in the upper trim panel (3), are coupled by the reinforcement components (8), and the steering support bracket (10) is attached to an intermediate section (81c) of the reinforcement components (8) which are located between the mounting sections (6a, 7a) of the pedal carriers (6, 7), and the upper trim panel (3) and the steering support component (9) are coupled to each other via the reinforcement components (8) and the steering support bracket (10); characterized in that the reinforcement component (8) provided in the mounting section (6a, 7a) of the pedal carrier (6, 7) of the upper trim panel (3), and the reinforcement component (8) provided in the mounting section (6a, 7a) of the pedal carrier (6, 7) of the partition (2) are integrally formed from a panel component and are provided continuously over a boundary (B) between the partition (2) and the upper trim panel (3); and on an upper surface of the integrally formed reinforcement components (8) ribs (83, 84) are formed across the boundary (B) between the partition (2) and the upper trim panel (3), each starting from the fastening section (7a) of the pedal carrier (7) of the upper trim panel (3) and a fastening section (10a) of the steering support carrier (10).

Description

[Technical field]

[0001] The present invention relates to a vibration damping structure for damping vibrations generated in a steering device, pedal brackets, a vehicle body and the like. [State of the art]

[0002] Conventionally, in a vehicle body front of a vehicle, as in Fig. 6, a partition wall 51 configured to partition an engine compartment E and an interior space R is provided, and an upper trim panel 52 is provided continuously arranged above the partition wall 51. A pair of pedal brackets (not shown in the figure) configured to rotatably support a brake pedal and a clutch pedal for vehicle operation are fixed to the partition wall 51 and the upper trim panel 52. Pedal bracket reinforcements 53a and 53b are provided in upper and lower mounting portions of the pedal brackets.

[0003] On the interior R side, located in the vehicle rear direction of the partition wall 51 and the upper trim panel 52, a steering support member 54 configured to support a steering axle and the like is suspended along the vehicle width direction. Both left and right ends in the vehicle width direction of the steering support member 54 are fixed to the vehicle body side portions. A steering support bracket 55 is interposed between the steering support member 54 and the pedal support reinforcement 53b of the upper trim panel 52.

[0004] Incidentally, the pedal bracket reinforcements 53a and 53b are reinforcement members provided to dampen vibrations generated in a steering device, pedal brackets, a vehicle body, and the like. Among such reinforcement members, there is a reinforcement member configured as a reinforcement support for the steering support bracket 55, which couples the partition wall 51 and the steering support member 54. There is a vibration damping structure that, with the reinforcement support, has a structure for damping vibration generated in the steering support member 54 (see, for example, JP 2013 014 161 A).

[0005] Document DE 602 05 857 T2 relates to an arrangement for fastening a first sound-damping element to the front bulkhead of a motor vehicle.

[0006] Document DE 603 ​​07 188 T2 relates to a pedal suspension for vehicles in which a tread of a pedal is displaced substantially forwards with respect to the vehicle when a pedal support is displaced rearwards with respect to the vehicle together with a vehicle component due to the application of an external force to the front of the vehicle.

[0007] Document JP 2002 274 431 A concerns a supporting structure for a steering column. [Summary of the invention][Problem to be solved by the invention]

[0008] However, in the conventional vibration damping structures, the pedal bracket reinforcements 53a and 53b are provided only around the pedal bracket mounting portions on the partition wall 51, and the pair of pedal brackets are separately fixed to the upper trim panel 52, respectively. The pedal bracket reinforcements 53a and 53b and the steering support bracket 55 are arranged to be attached to the pedal brackets and separately at a position of a boundary between the partition wall 51 and the upper trim panel 52. When the upper trim panel 52 receives a vibration in the vehicle front-rear direction generated in the steering support member 54 or the like, as indicated by a chain line in Fig. Therefore, as indicated in Figure 6, the upper trim panel 52 vibrates in the vehicle front-rear direction. This causes a deterioration in the support rigidity of the steering device and the mounting rigidity of the pedal brackets, and a damping function for vibrations generated in the steering device, the pedal brackets, the vehicle body, and the like cannot be sufficiently provided.

[0009] The present invention has been designed in view of such a current situation, and it is an object of the present invention to provide a vibration damping structure that efficiently damps vibrations generated in a steering support member, pedal brackets, a vehicle body, and the like, improves support rigidity of a steering device and fixing rigidity of the pedal brackets, and realizes a simple and lightweight structure. [Means of solving the problem]

[0010] The present invention is defined in independent claim 1. The dependent claims define embodiments of the invention. Disclosed is a vibration damping structure in which a partition wall configured to partition an engine compartment and a passenger compartment and an upper trim panel continuously disposed above the partition wall are provided, a plurality of pedal brackets configured to rotatably support pedals for vehicle operation are fixed to the partition wall and the upper trim panel, reinforcement members are provided in fixing portions of the pedal brackets, and a steering support member located in a vehicle rear direction of the partition wall and the upper trim panel is suspended along a vehicle width direction on the passenger compartment side, and a steering support bracket is interposed between the steering support member and the reinforcement members.The mounting portions of the pedal brackets, which are provided side by side in the vehicle width direction in the upper trim panel, are coupled by the reinforcement members. The steering support bracket is attached to an intermediate portion of the reinforcement members located between the mounting portions of the pedal brackets. The upper trim panel and the steering support member are coupled to each other via the reinforcement members and the steering support bracket.

[0011] The reinforcement member provided in the attachment portion of the pedal bracket of the upper trim panel and the reinforcement member provided in the attachment portion of the pedal bracket of the partition wall are integrally formed from a panel member and continuously provided across a boundary between the partition wall and the upper trim panel.

[0012] Further, on the upper surface of the integrally formed reinforcing members, beads are formed across the boundary between the partition wall and the upper trim panel, each starting from the attachment portion of the pedal bracket of the upper trim panel and a attachment portion of the steering support bracket.

[0013] In the vehicle's side view, annular structural sections are formed by the pedal support and the reinforcement members, respectively. The annular structural sections and the reinforcement members of the upper trim panel are combined to form a U-shaped structural section with an opening portion directed downwards in the vehicle.

[0014] A plurality of mass structure portions formed by compartment walls are provided in a location in the upper trim panel where the connecting portions and the reinforcing members of the pedal brackets are provided. [Advantageous effects of the invention]

[0015] As explained above, in the vibration damping structure, a partition wall configured to partition an engine compartment and an interior space and an upper trim panel continuously arranged above the partition wall are provided, a plurality of pedal brackets configured to rotatably support pedals for vehicle operation are fixed to the partition wall and the upper trim panel, reinforcement members are provided in fixing portions of the pedal brackets, and a steering support member located in a vehicle rear direction of the partition wall and the upper trim panel is suspended along a vehicle width direction on the interior space side, and a steering support bracket is interposed between the steering support member and the reinforcement members.The mounting portions of the pedal brackets, which are provided side by side in the vehicle width direction in the upper trim panel, are coupled by the reinforcement members. Therefore, it is possible to improve the rigidity of the upper trim panel, which is a mounting portion of the pedal bracket, and the mounting rigidity of the pedal brackets, and to dampen vibrations from a brake pedal, a clutch pedal, and the like.

[0016] In the vibration damping structure, the steering support bracket is fixed to an intermediate portion of the reinforcement members located between the mounting portions of the pedal brackets. The upper trim panel and the steering support member are coupled to each other via the reinforcement members and the steering support bracket. Therefore, both ends of the steering support bracket are supported by the upper trim panel, the rigidity of which is enhanced by the reinforcement members, and the steering support member has high rigidity. It is possible to improve the rigidity of the steering support bracket and dampen vibrations generated in the steering device and the like. Furthermore, the reinforcement members on a vehicle body side can receive the generated vibrations in a balanced state. Therefore, it is possible to dampen the vibrations more effectively.

[0017] The reinforcement member provided in the attachment portion of the pedal bracket of the upper trim panel and the reinforcement member provided in the attachment portion of the pedal bracket of the partition are integrally formed from a panel member and continuously provided across a boundary between the partition and the upper trim panel. Therefore, it is possible to reinforce the boundary between the partition and the upper trim panel with the reinforcement members, achieve an improvement in the rigidity of the vehicle body, and suppress vibration generated in the vehicle body. Consequently, it is possible to reduce vibration generated in the steering support bracket and, specifically, to dampen vibrations of the steering device and the pedals for vehicle operation.

[0018] Furthermore, in the upper surface of the integrally formed reinforcement members, beads are formed across the boundary between the partition wall and the upper trim panel, each starting from the attachment portion of the pedal bracket of the upper trim panel and a attachment portion of the steering support bracket. Therefore, it is possible to reinforce a fold of the reinforcement members provided across the boundary between the partition wall and the upper trim panel and suppress deformation of the reinforcement members. In addition, the rigidity of the reinforcement members and the vehicle body in which the reinforcement members are provided is improved. It is therefore possible to further dampen vibrations of the vehicle body and reduce vibrations of the steering device and the pedals for vehicle operation.

[0019] In the vehicle side view, annular structural portions are respectively formed by the pedal bracket and the reinforcement members. Therefore, the vehicle body is reinforced by the presence of the annular structural portions, and the rigidity of the vehicle body is improved. Therefore, since the support rigidity of the pedal brackets is improved, it is possible to dampen vibrations generated in the pedal brackets and the like and improve the rigidity of the pedal brackets when pedaling. Furthermore, the annular structural portions and the reinforcement members of the upper trim panel are combined, forming a U-shaped structural portion having an opening portion directed downward in the vehicle. Therefore, it is possible to effectively support the steering support bracket, improve the rigidity of the steering support bracket, and dampen vibration of the steering support member.Furthermore, it is possible to absorb vibration generated in the steering device not only with the vehicle body but also with the plurality of pedal supports, and easily dampen the generated vibration. In addition, it is possible to reduce the number of mass dampers used to control vibrations. Therefore, it is possible to achieve weight reduction and cost reduction.

[0020] A plurality of mass structure sections formed by partition walls are provided in the upper trim panel at a location where the fixing portions and reinforcing members of the pedal brackets are provided. Therefore, it is possible to improve the rigidity of the upper trim panel and the vehicle body, improve the rigidity of the pedal brackets and the steering support member, and more effectively dampen generated vibration. [Brief description of the characters] [ Fig. 1] Fig. 1 is a perspective view in which the periphery of attachment portions of the pedal brackets provided with a vibration damping structure according to an embodiment of the present invention is viewed obliquely from an interior side. [ Fig. 2] Fig. 2 is a plan view showing an arrangement relationship among the pedal brackets, a pedal bracket reinforcement, a steering support bracket, and a steering support member that configure the vibration damping structure according to an embodiment of the present invention. [ Fig. 3] Fig. 3 is a perspective view in which the pedal beam reinforcement of the vibration damping structure according to an embodiment of the present invention is seen from the interior side. [ Fig. 4] Fig. 4 is a schematic sectional view showing the periphery of the fixing portions of the pedal supports shown in Fig. 1, taken along a center line of the steering support bracket. [ Fig. 5] Fig. 5 is a side view showing the periphery of the holding portions of the pedal supports shown in Fig. 1, viewed from a vehicle side direction. [ Fig. 6] Fig. 6 is a schematic sectional view of the periphery of the support portions of the pedal brackets provided with a conventional vibration damping structure, taken along a center line of a steering support bracket. [Mode for carrying out the invention]

[0021] The present invention will be explained in detail below based on an embodiment shown in the figures.

[0022] Fig. 1 to 5 show a vibration damping structure according to the embodiment of the present invention. In Fig. 1 to 5 an arrow F direction indicates the vehicle front direction.

[0023] In a vehicle body front 1 of a vehicle, as in Fig. As shown in Figures 1 to 5, a partition wall 2 configured to partition an engine compartment E and an interior space R, and an upper trim panel 3 continuously arranged above the partition wall 2 are provided. A pair of left and right pedal brackets 6 and 7 configured to rotatably support a clutch pedal 4 and a brake pedal 5 for vehicle operation are fixed to the partition wall 2 and the upper trim panel 3 side by side, although spaced apart from each other in the vehicle width direction. A pedal bracket reinforcement 8 of reinforcement members is provided in fixing portions 6a and 7a of the pedal brackets 6 and 7.

[0024] On the other hand, a tubular steering support member 9, located above the interior R side in the vehicle rear direction of the partition wall 2 and the upper trim panel 3, which is configured to support a steering axle and the like, is suspended along the vehicle width direction. Both left and right ends in the vehicle width direction of the steering support member 9 are fixed to vehicle body side portions. A steering support bracket 10, which extends in the vehicle front-rear direction, is interposed between the steering support member 9 and the pedal bracket reinforcement 8 of the upper trim panel 3.

[0025] Note that the steering support member 9 is arranged on the inside of an instrument panel (not shown in the figures) of a large resin-modeled component in which various connecting parts are set. The steering support member 9 supports the instrument panel and the like. Fig. 1 and Fig. 2 only the steering support component 9 is shown on one driver's seat side.

[0026] In the area of ​​the upper trim panel 3 in this embodiment, as in Fig. 1 and Fig. 2, the upper attachment portions 6a and 7a of the pedal supports 6 and 7 are coupled by the pedal support reinforcement 8. Therefore, as shown in Fig. 3, an upper portion 81 of the pedal bracket reinforcement 8 in this embodiment has a continuous shape extending along the vehicle width direction. A left-side reinforcement portion 81a is provided to fix the upper-side fixing portion 6a of the pedal bracket 6 for the clutch pedal 4, a right-side reinforcement portion 81b is provided to fix the upper-side fixing portion 7a of the pedal bracket 7 for the brake pedal 5, and an upper-side intermediate portion 81c is configured to couple the reinforcement portions 81a and 81b, which are integrally formed from a panel member, on both left and right sides. In the area of ​​the partition wall 2 in this embodiment, the lower-side fixing portions 6b and 7b of the pedal brackets 6 and 7 are coupled by the pedal bracket reinforcement 8.Therefore, in this embodiment, a lower portion 82 of the pedal bracket reinforcement 8 has a continuous shape extending along the vehicle up-down direction and the vehicle width direction and on an area larger than the upper portion 81. A left-side reinforcement portion 82a provided for fixing a lower fixing portion 6b of the pedal bracket 6 for the clutch pedal 4, a right-side reinforcement portion 82b provided for fixing the lower fixing portion 7b of the pedal bracket 7 for the brake pedal 5, and a lower-side intermediate portion 82c configured to couple the reinforcement portions 82a and 82b on both left and right sides and arranged around the reinforcement portions 82a and 82b are integrally formed from a panel member.Furthermore, in the pedal beam reinforcement 8, the upper portion 81 and the lower portion 82 are continuously formed in the vehicle up-down direction, provided across a boundary B between the bulkhead 2 and the upper trim panel 3, and configured such that the boundary B is reinforced by the pedal beam reinforcement 8. Consequently, an improvement in the rigidity of the vehicle body front 1 is achieved, and vibration generation in the vehicle body front 1 is suppressed.

[0027] Therefore, the vibration damping structure of the vehicle body front 1 in this embodiment is configured by the pedal support reinforcement 8, the entirety of which is formed by a panel member and the intermediate portions 81c and 82c of the upper and lower portions 81 and 82, and which are immovably fixed to the partition wall 2 and the upper trim panel 3.

[0028] In the upper intermediate section 81c of the pedal support reinforcement 8, which is located between the upper fastening sections 6a and 7a of the pedal supports 6 and 7, as shown in Fig. 1 and Fig. 2, a center reinforcement portion 81d is provided. A front end attachment portion 10a of the steering support bracket 10 is attached to the center reinforcement portion 81d. Therefore, the upper portion 81 of the pedal support reinforcement 8 and the steering support bracket 10 are arranged in a T-shape in plan view in an assembled state. A rear end attachment portion 10b of the steering support bracket 10 is attached to the steering support member 9. That is, the upper cowl panel 3 and the steering support member 9 are coupled to each other via the pedal support reinforcement 8 and the steering support bracket 10.

[0029] Consequently, both the front and rear end mounting portions 10a and 10b of the steering support bracket 10 are supported by the upper cowl cover 3, whose rigidity is enhanced by the pedal bracket reinforcement 8, and the steering support member 9 has high rigidity. The rigidity of the steering support bracket 10 is enhanced, and vibrations generated in the steering device and the like are damped.

[0030] Furthermore, on the upper surface of the integrally formed pedal support reinforcement 8, as shown in Fig. 3, convex beads 83 and 84, each starting from the right side of the reinforcement portions 81b provided for fixing the upper-side fixing portion 7a of the pedal bracket 7 for the brake pedal 5 of the upper trim panel 3, and the center reinforcement portion 81d provided for fixing the front-end fixing portion 10a of the steering support bracket 10, are formed in the vehicle up-down direction across the boundary B between the bulkhead 2 and the upper trim panel 3. Folding of the pedal bracket reinforcement 8, provided across the boundary B between the bulkhead 2 and the upper trim panel 3, is suppressed by the presence of the beads 83 and 84. Deformation of the pedal bracket reinforcement 8 is suppressed when external load or the like is applied thereto.Furthermore, the rigidity of the pedal support reinforcement 8 itself is improved, and the rigidity of the partition wall 2 and the upper trim panel 3 of the vehicle body front 1 in which the pedal support reinforcement 8 is provided is improved.

[0031] In the vehicle body front 1, in this form, as in Fig. 1 and Fig. 5, annular structural portions 11 and 12 are provided, respectively, in the vehicle side view. The annular structural portions 11 and 12 are respectively constituted by the pair of pedal brackets 6 and 7 and the pedal bracket reinforcement 8. The rigidity of the vehicle body front 1 and the mounting rigidity of the pedal brackets 6 and 7 are improved by providing such annular structural portions 11 and 12, vibrations generated in the pedal brackets 6 and 7 are dampened, and the rigidity of the pedal brackets 6 and 7 is improved when the clutch pedal 4 and the brake pedal 5 are stepped on. A stable pedal operation feel is obtained.

[0032] Furthermore, in the vehicle body front 1, the annular structural portions 11 and 12 and the upper portion 81 of the pedal bracket reinforcement 8 are combined in the upper trim panel 3, forming a U-shaped (or C-shaped) structural portion 13 having an opening portion directed downward in the vehicle as viewed from the vehicle rear direction. The steering support bracket 10 is effectively supported by such a U-shaped structural portion 13, the rigidity of the steering support bracket 10 is improved, and the vibration of the steering support member 9 is damped. Vibration generated in the steering device can be received not only by the vehicle body front 1 but also by the pedal brackets 6 and 7. It is easy to dampen the generated vibration. Furthermore, the number of mass dampers installed to control vibrations can be small. Therefore, it is possible to realize weight reduction and cost reduction.

[0033] On the other hand, in the upper trim panel 3 in this embodiment, as shown in Fig. 2, a plurality of (in this embodiment: two) mass structure portions 14 and 15 formed by partition walls are provided spaced apart from each other in the vehicle width direction at a location where the upper-side attachment portions 6a and 7a of the pedal brackets 6 and 7 and the pedal bracket reinforcement 8 are provided. The rigidity of the upper trim panel 3 and the vehicle body front 1, and the rigidity of the pedal brackets 6 and 7 and the steering support member 9 are enhanced by the mass structure portions 14 and 15, and vibration generated in the vehicle body front 1 is effectively damped.

[0034] As explained above, in the vibration damping structure according to the embodiment of the present invention, the integrally formed pedal bracket reinforcement 8 is provided in the bulkhead 2 and the upper trim panel 3. The upper attachment portions 6a and 7a of the pedal brackets 6 and 7, which are provided side by side in the vehicle width direction, are coupled by the pedal bracket reinforcement 8. Therefore, it is possible to improve the rigidity of the upper trim panel 3, which is the upper-side attachment portions 6a and 7a of the pedal brackets 6 and 7, and the attachment rigidity of the pedal brackets 6 and 7, and effectively damp vibrations from the clutch pedal 4, the brake pedal 5, and the like.

[0035] In the vibration damping structure according to the embodiment of the present invention, the front-end fixing portion 10a of the steering support bracket 10 is fixed to the upper-side intermediate portion 81c of the pedal bracket reinforcement 8, which is located between the upper-side fixing portions 6a and 7a of the pedal brackets 6 and 7. The upper cowl panel 3 and the steering support member 9 are connected to each other via the pedal bracket reinforcement 8 and the steering support bracket 10. Therefore, it is possible to fix the front and rear fixing portions 10a and 10b of the steering support bracket 10 to the upper cowl panel 3, whose rigidity is improved by the pedal bracket reinforcement 8, and the steering support member 9 has high rigidity. With the improvement in the rigidity of the steering support bracket 10, it is possible to damp vibrations generated in the steering device and the like.Furthermore, since the pedal support reinforcement 8 receives the generated vibrations in a balanced state, it is possible to improve a damping effect of the vibrations.

[0036] The embodiment of the present invention is explained above. However, the present invention is not limited to the explained embodiment. Various modifications and variations are possible based on the technical idea of ​​the present invention.

[0037] The shape of the pedal support reinforcement 8, for example, is not limited to the shape explained in the embodiment and may be changed to another shape suitable according to an applied car model or the like.

[0038] In summary, an embodiment can be described as follows: [Solution]

[0039] In an upper trim panel 3 continuously arranged above a partition wall 2, attachment portions 6a and 7a of pedal brackets 6 and 7 provided side by side in the vehicle width direction are coupled by a pedal bracket reinforcement 8. A steering support bracket 10 is attached to an intermediate portion 81c of the pedal bracket reinforcement 8, which is located between the attachment portions 6a and 7a of the pedal brackets 6 and 7. The upper trim panel 3 and a steering support member 9 are coupled to each other via the pedal bracket reinforcement 8 and the steering support bracket 10. [List of reference symbols] 1 vehicle body front 2 partition wall 3 upper cladding panel 4 Clutch pedal 5 Brake pedal 6.7, pedal carrier 6a, 7a top fastening sections 6b, 7b underside fastening sections 8 Pedal support reinforcement (reinforcement component) 9 Steering support component 10 steering support brackets 10a Front end mounting section 11, 12 ring-shaped structural sections 13 U-shaped structural section 14, 15 Mass structure section 81 upper section of the pedal support reinforcement 81c upper intermediate section 82 lower section of the pedal support reinforcement 83, 84 beads B border E Engine compartment R interior

Claims

[1] A vibration damping structure in which a partition wall (2) configured to partition an engine compartment (E) and an interior space (R) and an upper trim panel (3) continuously arranged above the partition wall (2) are provided, wherein a plurality of pedal supports (6, 7) configured to rotatably support pedals (4, 5) for vehicle operation are attached to the partition wall (2) and the upper trim panel (3), Reinforcing components (8) are provided in fastening sections (6a, 7a) of the pedal supports (6, 7), a steering support member (9) located in a vehicle rear direction of the partition wall (2) and the upper trim panel (3) is suspended along a vehicle width direction on the interior side, a steering support bracket (10) is arranged between the steering support component (9) and the reinforcing components (8), the fastening portions (6a, 7a) of the pedal supports (6, 7) provided side by side in the vehicle width direction in the upper trim panel (3) are coupled by the reinforcing members (8), and the steering support bracket (10) is fixed to an intermediate portion (81c) of the reinforcing members (8) located between the fastening portions (6a, 7a) of the pedal supports (6, 7), and the upper trim panel (3) and the steering support member (9) are coupled to each other via the reinforcing members (8) and the steering support bracket (10); characterized by , that the reinforcing member (8) provided in the attachment portion (6a, 7a) of the pedal bracket (6, 7) of the upper trim panel (3) and the reinforcing member (8) provided in the attachment portion (6a, 7a) of the pedal bracket (6, 7) of the partition wall (2) are integrally formed from a panel member and are provided continuously across a boundary (B) between the partition wall (2) and the upper trim panel (3); and on an upper surface of the integrally formed reinforcing members (8), beads (83, 84) are formed across the boundary (B) between the partition wall (2) and the upper trim panel (3), each beginning from the attachment portion (7a) of the pedal bracket (7) of the upper trim panel (3) and a attachment portion (10a) of the steering support bracket (10). [2] A vibration damping structure according to claim 1, wherein, in a vehicle side view, annular structural portions (11, 12) are respectively formed by the pedal bracket (6, 7) and the reinforcing members (8), and the annular structural portions (11, 12) and the reinforcing members (8) of the upper trim panel (3) are combined to form a U-shaped structural portion (13) having an opening portion directed downward in the vehicle. [3] A vibration damping structure according to claim 1, wherein a plurality of solid structure portions (14, 15) formed by partition walls are provided in a location in the upper trim panel (3) where the fixing portions (6a, 7a) of the pedal brackets (6, 7) and the reinforcing members (8) are provided.

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