Rear floor structure of vehicle

Abstract

The objective of this invention is to provide a rear floor structure for a vehicle capable of suppressing the miniaturization of the trunk due to the influence of a subwoofer. A rear floor structure for a vehicle comprises: a lower rear floor portion made of resin, which forms part of the lower side of the rear of the vehicle and constitutes at least a portion of the outer structural component of a subwoofer, and is a hollow body with an open upper surface; and an upper rear floor portion, which covers part of the lower rear floor portion from the upper side of the vehicle, wherein constituent parts disposed inside the outer structural component of the subwoofer are accommodated in the interior space of the lower rear floor portion.

Description

Technical Field

[0001] This invention relates to a rear floor structure for a vehicle. Background Technology

[0002] Patent Document 1 disclosed below describes a rear structure for a vehicle. A luggage compartment and a subwoofer (bass speaker) are provided in the luggage compartment located at the rear of the vehicle.

[0003] Patent Document 1: Japanese Patent Application Publication No. 6-107084 Summary of the Invention In the aforementioned Patent Document 1, the luggage compartment is easily miniaturized due to the influence of the subwoofer. There is room for improvement in this respect in Patent Document 1.

[0004] In view of the above facts, the present invention aims to provide a rear floor structure for a vehicle that can suppress the miniaturization of the trunk caused by the subwoofer.

[0005] The rear floor structure of the vehicle according to the first embodiment includes: a resin-made rear floor panunder that forms part of the lower side of the vehicle at the rear and constitutes at least part of the outer shape structure component of the subwoofer, and is a hollow body with an open upper surface; and a rear floor pan upper that covers at least part of the rear floor panunder from the upper side of the vehicle, wherein the constituent parts disposed inside the outer shape structure component of the subwoofer are accommodated in the interior space of the rear floor panunder.

[0006] The rear floor structure of the vehicle according to the first embodiment includes: a lower rear floor made of resin, which is a hollow body with an opening on its upper surface. The lower rear floor forms part of the lower side of the vehicle's rear section and constitutes at least a portion of the subwoofer's external structural component. Furthermore, constituent parts disposed inside the subwoofer's external structural component are accommodated in the internal space of the lower rear floor. Thus, since the lower rear floor forms at least a portion of the subwoofer's external structural component, compared to a case where the subwoofer's external structural component is entirely separate, it is possible to suppress the miniaturization of the trunk due to the subwoofer's influence.

[0007] Regarding the rear floor structure of the vehicle in the second embodiment, in the first embodiment, the upper part of the rear floor divides the interior space of the lower part of the rear floor in a vertical direction, and the constituent parts are accommodated in the interior space that is lower than the upper part of the rear floor.

[0008] In the rear floor structure of the vehicle of the second type, the upper part of the rear floor divides the interior space of the lower part of the rear floor vertically, and the components of the subwoofer are housed in an interior space that is lower than the upper part of the rear floor. Therefore, the interior space that is higher than the upper part of the rear floor can be used as storage space for items.

[0009] Regarding the rear floor structure of the vehicle in the third embodiment, in the first or second embodiment, the lower and upper portions of the rear floor are made of fiber-reinforced resin.

[0010] In the rear floor structure of the vehicle of the third type, the strength of the lower and upper parts of the rear floor is enhanced, thus improving the strength of the subwoofer.

[0011] Invention Effects As explained above, the rear floor structure of the vehicle involved in this invention has the excellent effect of suppressing the miniaturization of the luggage compartment caused by the subwoofer. Attached Figure Description

[0012] Figure 1 This is a schematic perspective view of the rear floor structure of the vehicle involved in the implementation method.

[0013] Figure 2 This is a schematic exploded perspective view of the lower part of the rear floor, the upper part of the rear floor, the toolbox, and the subwoofer.

[0014] Figure 3 It is along Figure 1 A schematic cross-sectional view with arrows 3-3. Detailed Implementation

[0015] The rear floor structure of the vehicle according to the embodiment will be described below with reference to the accompanying drawings. Furthermore, the arrows UP, FR, and LH shown in the drawings represent the upper side in the vertical direction, the front side in the longitudinal direction, and the left side in the horizontal direction, respectively.

[0016] Figure 1 and Figure 3 This refers to the rear portion 14 of the vehicle body 12 of the vehicle 10, which utilizes the rear floor structure of the vehicle according to this embodiment. The rear portion 14 of the vehicle body 12 is constructed from vehicle frame components, including crossbeams and rear side beams. Furthermore, at least a portion of the rear portion 14 may be constructed from a single piece of die-cast aluminum. Figure 3 The symbol 16 represents the rear end face of the rear part 14 (vehicle 10).

[0017] A recess 18 with an open upper surface is formed in the rear portion 14. At least the lower part of the recess 18 is provided with a one-piece molded part made of fiber-reinforced resin, namely the lower rear floor portion 20. The fiber-reinforced resin used in this specification is, for example, a material in which glass fibers are composited with resin materials such as epoxy resin or phenolic resin.

[0018] like Figure 1 and Figure 2 As shown, the lower part 20 of the rear floor is a hollow body with an open upper surface. The lower part 20 of the rear floor includes: a main body 22, which is entirely open at the upper end and blocked at the bottom and sides (circumferential surface); and an annular flange 24, which is entirely disposed at the upper end of the main body 22. In addition, an annular step 23 is formed on the upper part of the inner peripheral surface of the main body 22.

[0019] Inside the main body 22 is a one-piece molded rear floor upper part 30 made of fiber-reinforced resin. The planar shape of the rear floor upper part 30 is approximately the same as the planar shape of the interior space of the main body 22. The rear floor upper part 30 includes: a base plate part 32, which constitutes its upper part; and a hollow part 34, which protrudes downward from approximately the center of the base plate part 32. A circular through hole 33 is formed on the left side of the base plate part 32. Furthermore, a diaphragm unit 42, which has a circular front shape and is part of the subwoofer 40 described later, is disposed in the through hole 33. The diaphragm unit 42 is the part that outputs sound. The outer periphery of the base plate part 32 of the rear floor upper part 30 is... Figure 1 and Figure 3 The annular step portion 23 is mounted on the main body portion 22 of the lower rear floor 20 as shown. Furthermore, the base plate portion 32 is fixed to the annular step portion 23. Thus, the upper surface of the base plate portion 32 lies on a plane substantially the same as the upper surface of the annular flange portion 24, and the lower end of the hollow portion 34 is located near the center of the main body portion 22 in the vertical direction. That is, the internal space of the lower rear floor 20 is covered from above by the upper rear floor 30. Therefore, as shown... Figure 3 As shown, the internal space of the main body 22 is divided into a lower space 26 and an upper space 28 by the upper part 30 of the rear floor.

[0020] like Figure 3 As shown, a component 44, which is part of a subwoofer 40 and serves as a speaker, is disposed in a portion of the interior space of the main body 22, namely the lower space 26. This component 44 includes multiple parts, such as a voice coil actuator and a power supply cable connected to the coil of the voice coil actuator. When the voice coil actuator vibrates, the diaphragm 43 of the diaphragm unit 42 vibrates vertically, and the diaphragm unit 42 generates sound. The subwoofer 40 can be used, for example, as a subwoofer capable of producing deep bass.

[0021] like Figure 1 and Figure 3 As shown, the upper part of the rear floor 30 and the part of the main body 22 located below the upper part of the rear floor 30 constitute the shell-shaped outer structure component 56 of the subwoofer 40. A component 44 is provided inside the outer structure component 56 of the subwoofer 40.

[0022] The toolbox 50 is detachably disposed in the hollow portion 34 of the upper part 30 of the rear floor. The toolbox 50 is a one-piece molded article made of fiber-reinforced resin. The planar shape of the toolbox 50 is substantially the same as the planar shape of the hollow portion 34. The toolbox 50 includes: a flat upper component 51 that constitutes the upper part; and a storage portion 52, which is a hollow body protruding downward from the upper component 51.

[0023] like Figure 3 As shown, the upper space of the recess 18 in the rear part 14 of the vehicle body 12, the base plate part 32 in the upper part of the rear floor 30, and the toolbox 50 form a luggage compartment 54 with an open upper surface. Additionally, a rotatable tailgate 11 (see reference) is provided at the rear of the vehicle body 12. Figure 3 Open and close the upper opening of the luggage compartment 54.

[0024] like Figure 3 As shown, when a toolbox 50 is provided on the upper part 30 of the rear floor, the toolbox 50 can store various items.

[0025] The lower rear floor 20, upper rear floor 30, and subwoofer 40 described above are the constituent components of the vehicle's rear floor structure.

[0026] (Function and effect) Next, the function and effects of this embodiment will be explained.

[0027] The rear floor structure of the vehicle described above in this embodiment includes a hollow rear floor lower portion 20 that is provided at the rear portion 14 of the vehicle body 12 of the vehicle 10 and has an open upper surface. The rear floor lower portion 20 forms part of the lower side of the vehicle in the rear portion 14 and forms part of the outer shape structure component 56 of the subwoofer 40. Furthermore, the constituent part 44 of the lower space 26, which is the internal space of the outer shape structure component 56 of the subwoofer 40, is accommodated in the internal space of the rear floor lower portion 20. Thus, since the rear floor lower portion 20 forms part of the outer shape structure component 56 of the subwoofer 40, compared to the case where the rear floor lower portion 20 and the outer shape structure component 56 of the subwoofer 40 are entirely separate, the miniaturization of the trunk 54 due to the influence of the subwoofer 40 can be suppressed.

[0028] Furthermore, the rear floor structure of the vehicle in this embodiment includes a rear floor upper portion 30 that divides the interior space of the lower rear floor portion 20 vertically, and a toolbox 50 is detachably disposed in the hollow portion 34 of the rear floor upper portion 30. Therefore, the storage portion 52 of the toolbox 50 can store various tools. In addition, by removing the toolbox 50 from the hollow portion 34, various items can be placed into the hollow portion 34.

[0029] Furthermore, the lower rear floor section 20 and the upper rear floor section 30 are integrally molded parts made of fiber-reinforced resin. Therefore, the mechanical strength of the lower rear floor section 20 and the upper rear floor section 30 is enhanced, thereby improving the mechanical strength of the subwoofer 40.

[0030] The rear floor structure of the vehicle according to the embodiments described above has been explained, but these can be appropriately modified without departing from the spirit of the invention.

[0031] For example, at least one of the lower rear floor 20, the upper rear floor 30, and the toolbox 50 may be made of a resin material different from fiber-reinforced resin.

[0032] The toolbox 50 can be secured to at least one of the lower rear floor 20 and the upper rear floor 30 using a fixing mechanism (e.g., bolts and nuts).

[0033] Symbol Explanation 10-Vehicle, 14-Rear section, 20-Lower rear floor, 30-Upper rear floor, 40-Subwoofer, 44-Component parts, 50-Toolbox, 56-Exterior structural parts.

Claims

1. A rear floor structure for a vehicle, characterized in that, have: The lower part of the resin-made rear floor, which forms part of the lower side of the vehicle's rear section and constitutes at least part of the subwoofer's external structural components, is a hollow body with an open upper surface; and The upper part of the rear floor covers at least a portion of the lower part of the rear floor from the upper side of the vehicle. The constituent parts of the subwoofer's external structural components are housed within the internal space beneath the rear floor.

2. The rear floor structure of the vehicle according to claim 1, characterized in that, The upper part of the rear floor divides the internal space of the lower part of the rear floor in a vertical direction. The constituent parts are housed in the internal space located below the upper part of the rear floor.

3. The rear floor structure of the vehicle according to claim 1 or 2, characterized in that, The lower part and the upper part of the rear floor are made of fiber-reinforced resin.

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