Vehicle rear floor pan structure

Abstract

This invention provides a rear floor pan structure for a vehicle that can suppress the reduction in luggage compartment size caused by the influence of the subwoofer. [Solution] The rear floor pan under 20 is a hollow resin body with an open top surface that forms part of the underside of the vehicle at the rear 14 of the vehicle 10 and also forms at least part of the outer shape component 56 of the woofer 40, and the rear floor pan upper 30 covers part of the rear floor pan under from the upper side of the vehicle, and the components provided inside the outer shape component of the woofer are housed in the internal space of the rear floor pan under.

Description

【Technical Field】 【0001】 The present invention relates to a rear floor pan structure of a vehicle. 【Background Art】 【0002】 The following Patent Document 1 discloses a rear structure of a vehicle. A trunk room provided at the rear of the vehicle is provided with a luggage room and a woofer (woofer speaker). 【Prior Art Document】 【Patent Document】 【0003】 【Patent Document 1】 Japanese Patent Laid-Open No. 6-107084 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 In the above Patent Document 1, the luggage room is likely to be downsized due to the influence of the woofer. The above Patent Document 1 has room for improvement in this regard. 【0005】 In consideration of the above facts, an object of the present invention is to obtain a rear floor pan structure of a vehicle capable of suppressing the downsizing of the luggage room due to the influence of the woofer. 【Means for Solving the Problems】 【0006】 The rear floor pan structure of a vehicle according to the first aspect is a resin-made rear floor pan under that forms a part of the lower side of the vehicle at the rear of the vehicle and also forms at least a part of the outer shape constituent member of the woofer, and is a hollow body with an open upper surface, and a rear floor pan upper that covers at least a part of the rear floor pan under from above the vehicle, and components provided inside the outer shape constituent member of the woofer are accommodated in the internal space of the rear floor pan under. 【0007】 The rear floor pan structure of the vehicle in the first embodiment includes a resin rear floor pan under, which is a hollow body with an open top. The rear floor pan under constitutes a part of the underside of the vehicle at the rear of the vehicle and also constitutes at least a part of the external components of the woofer. Furthermore, components provided inside the external components of the woofer are housed in the internal space of the rear floor pan under. Since the rear floor pan under constitutes at least a part of the external components of the woofer in this way, it is possible to suppress the reduction in the size of the luggage compartment due to the woofer's influence compared to the case where the woofer is a separate component from the entire external components of the woofer. 【0008】 In the second embodiment of the vehicle's rear floor pan structure, the rear floor pan upper partitions the internal space of the rear floor pan under in the vertical direction, and the components are housed in the internal space below the rear floor pan upper. 【0009】 In the rear floor pan structure of the vehicle according to the second embodiment, the rear floor pan upper partitions the internal space of the rear floor pan under in the vertical direction, and the components of the woofer are housed in the internal space below the rear floor pan upper. Therefore, the internal space above the rear floor pan upper can be used as storage space for items. 【0010】 In the third embodiment of the vehicle, the rear floor pan structure is such that the rear floor pan under and rear floor pan upper are made of fiber-reinforced resin, as in the first or second embodiment. 【0011】 In the rear floor pan structure of the third embodiment of the vehicle, the strength of the rear floor pan under and rear floor pan upper is increased, so the strength of the woofer is also improved. [Effects of the Invention] 【0012】 As described above, the rear floor pan structure of the vehicle according to the present invention has the excellent effect of being able to suppress the reduction in the size of the luggage compartment due to the influence of the woofer. [Brief explanation of the drawing] 【0013】 [Figure 1] This is a schematic perspective view of the rear floor pan structure of a vehicle according to this embodiment. [Figure 2] This is a schematic disassembled perspective view of the rear floor pan under, rear floor pan upper, toolbox, and woofer. [Figure 3] This is a schematic cross-sectional view along the line 3-3 in Figure 1. [Modes for carrying out the invention] 【0014】 The rear floor pan structure of the vehicle according to the embodiment will be described below with reference to the attached drawings. The arrows UP, FR, and LH in each drawing indicate the upper side in the vertical direction of the vehicle, the front side in the longitudinal direction of the vehicle, and the left side in the lateral direction of the vehicle, respectively. 【0015】 Figures 1 and 3 show the rear portion 14 of the vehicle body 12 of a vehicle 10 to which the rear floor pan structure of this embodiment is applied. The rear portion 14 of the vehicle body 12 is composed of vehicle frame members, including cross members and rear side members. At least a part of the rear portion 14 may also be composed of an integrally molded product made of die-cast aluminum. Reference numeral 16 in Figure 3 indicates the rear end surface of the rear portion 14 (vehicle 10). 【0016】 A recessed area 18 with an open top surface is formed in the rear portion 14. A rear floor pan under 20, which is an integrally molded product made of fiber-reinforced resin, is provided at least below the recessed area 18. The fiber-reinforced resin in this specification is, for example, a resin material such as epoxy resin or phenolic resin, to which glass fibers are compounded. 【0017】 As shown in Figures 1 and 2, the rear floor pan under 20 is a hollow body with an open top. The rear floor pan under 20 comprises a main body portion 22 whose entire upper end is open and whose bottom and sides (circumferential surfaces) are closed, and an annular flange portion 24 provided on the entire upper end of the main body portion 22. Furthermore, an annular stepped portion 23 is formed on the upper part of the inner circumferential surface of the main body portion 22. 【0018】 Inside the main body 22 is a rear floor pan upper 30, which is a single molded product made of fiber-reinforced resin. The planar shape of the rear floor pan upper 30 is substantially the same as the planar shape of the internal space of the main body 22. The rear floor pan upper 30 comprises a base plate portion 32 that forms its upper end and a hollow portion 34 that protrudes downward from the approximate center of the base plate portion 32. A circular through hole 33 is formed on the left side of the base plate portion 32. Furthermore, a diaphragm unit 42, which has a circular front shape and is part of the components of the woofer 40 described later, is provided in the through hole 33. The diaphragm unit 42 is the part that outputs sound. The outer periphery of the base plate portion 32 of the rear floor pan upper 30 is placed on the annular step portion 23 of the main body 22 of the rear floor pan under 20 in the manner shown in Figures 1 and 3. Furthermore, the base plate portion 32 is fixed to the annular step portion 23. As a result, the upper surface of the substrate portion 32 is located on approximately the same plane as the upper surface of the annular flange portion 24, and the lower end of the hollow portion 34 is located near the vertical center of the main body portion 22. That is, the internal space of the rear floor pan under 20 is covered from above by the rear floor pan upper 30. Therefore, as shown in Figure 3, the internal space of the main body portion 22 is divided into a lower space 26 and an upper space 28 by the rear floor pan upper 30. 【0019】 As shown in Figure 3, a component 44, which is part of the woofer 40 (an audio device / speaker), is provided in the lower space 26, which is part of the internal space of the main body 22. This component 44 includes multiple parts. These parts include, for example, 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 in conjunction with it, and the diaphragm unit 42 generates sound. The woofer 40 can be used, for example, as a subwoofer capable of generating deep bass. 【0020】 As shown in Figures 1 and 3, the rear floor pan upper 30 and the portion of the main body 22 located below the rear floor pan upper 30 constitute the case-shaped outer component 56 of the woofer 40. Components 44 are provided in the internal space of the outer component 56 of the woofer 40. 【0021】 In the hollow portion 34 of the rear floor pan upper 30, a tool box 50, which is an integrally molded product made of a fiber-reinforced resin, is detachably provided. The planar shape of the tool box 50 is substantially the same as the planar shape of the hollow portion 34. The tool box 50 includes a flat upper component portion 51 that constitutes the upper end portion thereof, and a storage portion 52 that is a hollow body protruding downward from the upper component portion 51. 【0022】 As shown in FIG. 3, a luggage room 54 with an open upper surface is formed by the upper space of the recess 18 in the rear portion 14 of the vehicle body 12, the substrate portion 32 of the rear floor pan upper 30, and the tool box 50. Note that the upper end opening of the luggage room 54 is opened and closed by a rotatable back door 11 (see FIG. 3) provided at the rear portion of the vehicle body 12. 【0023】 As shown in FIG. 3, when the tool box 50 is provided on the rear floor pan upper 30, the tool box 50 can store various articles. 【0024】 The rear floor pan under 20, the rear floor pan upper 30, and the wooher 40 described above are components of the rear floor pan structure of the vehicle. 【0025】 (Function and Effect) Next, the function and effect of the present embodiment will be described. 【0026】 The rear floor pan structure of the vehicle in this embodiment, as described above, includes a rear floor pan under 20, which is a hollow body with an open top surface, provided at the rear 14 of the vehicle body 12 of the vehicle 10. The rear floor pan under 20 constitutes a part of the underside of the vehicle at the rear 14 and also constitutes a part of the external components 56 of the woofer 40. Furthermore, the components 44 provided in the lower space 26, which is the internal space of the external components 56 of the woofer 40, are housed in the internal space of the rear floor pan under 20. Since the rear floor pan under 20 constitutes a part of the external components 56 of the woofer 40 in this way, it is possible to suppress the miniaturization of the luggage compartment 54 due to the influence of the woofer 40 compared to the case where the rear floor pan under 20 is a separate part from the entire external components 56 of the woofer 40. 【0027】 Furthermore, the rear floor pan structure of the vehicle in this embodiment includes a rear floor pan upper 30 that partitions the internal space of the rear floor pan under 20 in the vertical direction, and a toolbox 50 is detachably installed in the hollow section 34 of the rear floor pan upper 30. As a result, the storage section 52 of the toolbox 50 can store various tools. Moreover, by removing the toolbox 50 from the hollow section 34, it becomes possible to put various items into the hollow section 34. 【0028】 Furthermore, the rear floor pan under 20 and rear floor pan upper 30 are integrally molded parts made of fiber-reinforced resin. As a result, the mechanical strength of the rear floor pan under 20 and rear floor pan upper 30 is increased, which also improves the mechanical strength of the woofer 40. 【0029】 The rear floor pan structure of the vehicle according to the embodiment has been described above, but these can be modified as appropriate without departing from the spirit of the present invention. 【0030】 For example, at least one of the rear floor pan under 20, the rear floor pan upper 30, and the toolbox 50 may be made of a resin material other than fiber-reinforced resin. 【0031】 The toolbox 50 may be fixed to at least one of the rear floor pan under 20 and the rear floor pan upper 30 using fastening means (e.g., bolts and nuts). [Explanation of symbols] 【0032】 10 vehicles 14 Rear 20 Rear floor pan under 30 Rear floor pan upper 40 Woofer 44 Components 50 56 External components

Claims

[Claim 1] A resin rear floor pan underlay, which is a hollow body with an open top, forms part of the underside of the vehicle at the rear of the vehicle and also forms at least part of the external components of the woofer, A rear floor pan upper that covers at least a portion of the rear floor pan under from the upper side of the vehicle, Equipped with, A rear floor pan structure for a vehicle in which components provided inside the external components of the woofer are housed in the internal space of the rear floor pan under. [Claim 2] The rear floor pan upper partitions the internal space of the rear floor pan under in the vertical direction. The rear floor pan structure of a vehicle according to claim 1, wherein the components are housed in the internal space below the rear floor pan upper. [Claim 3] The rear floor pan structure for a vehicle according to claim 1 or claim 2, wherein the rear floor pan under and the rear floor pan upper are made of fiber-reinforced resin.

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