JP5521787B2 - Rear structure of the vehicle - Google Patents

Description

  The present invention relates to a rear structure of a vehicle including a spare tire storage portion that stores a spare tire in a rear portion of the vehicle, and a spare tire fixing means that fixes the spare tire to the spare tire storage portion.

  2. Description of the Related Art Conventionally, there is known a rear structure of a vehicle including a recess that can store a spare tire formed in a spare tire pan at the rear of the vehicle, and a spare tire fixing means that fixes the spare tire in the recess (for example, Patent Document 1).

Japanese Patent No. 4239777

  However, in the conventional rear structure of the vehicle, when the spare tire is fixed, the spare tire is pressed against the bottom surface of the recess by the spare tire fixing means, and the rigidity of the spare tire pan is improved. On the other hand, when the spare tire is not fixed, the spare tire is not pressed against the bottom surface of the concave portion, so that the rigidity of the spare tire pan is lowered. For this reason, there is a concern that the sound vibration performance of the vehicle changes because the rigidity of the spare tire pan is different between a vehicle with a spare tire even in a common floor structure and a vehicle without a spare tire (non-wearing).

  The present invention has been made paying attention to the above problem, and an object of the present invention is to provide a rear structure of a vehicle that can suppress a change in the sound vibration performance of the vehicle.

  In order to achieve the above object, in the rear structure of the vehicle according to the present invention, a spare tire fixing unit that stores a spare tire formed in the rear part of the vehicle and stores the spare tire in place of the spare tire. It has a storage member fixed by means. And this storage member is provided with the fixed force transmission surface which transmits the fixing force by a spare tire fixing means to the spare tire contact part vicinity of a spare tire storage part.

  In the rear structure of the vehicle of the present invention, the storage member is stored in the spare tire storage section instead of the spare tire, and is fixed by the spare tire fixing means for fixing the spare tire. Thereby, the fixing force by the spare tire fixing means can be transmitted from the fixing force transmission surface of the storage member to the vicinity of the spare tire contact portion, and a change in the sound vibration performance of the vehicle can be suppressed.

1 is an overall perspective view illustrating a rear structure of a vehicle according to a first embodiment. It is AA sectional drawing in FIG. It is a figure which shows the storage member of the rear part structure of the vehicle of Example 1, Comprising: (a) is a perspective view, (b) is a top view, (c) is BB cross section in FIG.3 (b). It is a figure and (d) is CC sectional drawing in FIG.3 (b). It is explanatory drawing which shows the fixed force transmitted to a spare-tire pan, (a) shows the state with a spare tire in the rear part structure of the vehicle of a comparative example, (b) is the spare tire in the rear part structure of the vehicle of a comparative example (C) shows the rear structure of the vehicle according to the first embodiment. It is a graph which shows the correlation of a vibration frequency and an acceleration vibration level. FIG. 6 is a cross-sectional view illustrating a first modification of the rear structure of the vehicle according to the first embodiment. FIG. 6 is a cross-sectional view illustrating a second modification of the rear structure of the vehicle according to the first embodiment. FIG. 6 is a cross-sectional view illustrating a third modification of the rear structure of the vehicle according to the first embodiment. FIG. 6 is a cross-sectional view illustrating a fourth modification of the rear structure of the vehicle according to the first embodiment. FIG. 6 is a cross-sectional view illustrating a fifth modification of the rear structure of the vehicle according to the first embodiment. FIG. 10 is a cross-sectional view illustrating a sixth modification of the rear structure of the vehicle according to the first embodiment. It is a figure which shows the modification 7 of the rear part structure of the vehicle of Example 1, Comprising: (a) is a bottom view, (b) is sectional drawing which is DD sectional drawing in Fig.12 (a). FIG. 9 is a diagram illustrating a modification 8 of the rear structure of the vehicle according to the first embodiment, where (a) is a perspective view and (b) is a cross-sectional view. It is a figure which shows the modification 9 of the rear part structure of the vehicle of Example 1, Comprising: (a) is a bottom view, (b) is EE sectional drawing in Fig.14 (a), (c) is It is FF sectional drawing in FIG.14 (d). FIG. 6 is an exploded perspective view showing a rear structure of a vehicle according to a second embodiment. FIG. 6 is a cross-sectional view illustrating a rear structure of a vehicle according to a second embodiment. It is a figure explaining the use condition of the rear part structure of the vehicle of Example 2, (a) shows the case where a spare tire contact part is comparatively small, (b) shows the case where a spare tire contact part is comparatively large. It is a figure which shows the modification 1 of the rear part structure of the vehicle of Example 2, Comprising: (a) is a perspective view, (b) is GG sectional drawing in Fig.18 (a). FIG. 6 is a cross-sectional view illustrating a second modification of the rear structure of the vehicle according to the second embodiment. FIG. 10 is a cross-sectional view illustrating a third modification of the rear structure of the vehicle according to the second embodiment. It is a figure which shows the leg part applied to the modification 4 of the rear part structure of the vehicle of Example 2, Comprising: (a) is a top view, (b) is the side seen from the arrow H direction in Fig.21 (a). It is a figure and (c) is JJ sectional drawing in Fig.21 (a).

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the rear part structure of the vehicle of this invention is demonstrated based on Example 1 and Example 2 which are shown in drawing.

First, the configuration will be described.
FIG. 1 is an overall perspective view showing a rear structure of a vehicle according to a first embodiment. 2 is a cross-sectional view taken along line AA in FIG. 3A and 3B are diagrams illustrating a storage member of the rear structure of the vehicle according to the first embodiment, in which FIG. 3A is a perspective view, FIG. 3B is a plan view, and FIG. It is BB sectional drawing, (d) is CC sectional drawing in FIG.3 (b). In FIG. 1, the direction indicated by the arrow FR indicates the front of the vehicle, and the direction indicated by the arrow RE indicates the rear of the vehicle.

  At the rear of the vehicle, a floor panel 1 is disposed above a body frame (not shown). The floor panel 1 is provided with a spare tire storage portion 2 that can store a spare tire (not shown). Spare tire fixing means 3 is provided in the center of the spare tire storage portion 2. In the spare tire storage portion 2, a storage member 10 is fixed by a spare tire fixing means 3 in place of the spare tire. Normally, the spare tire storage unit 2 is covered with a trunk board 4 (see FIG. 2) so that the storage member 10 cannot be seen.

  The spare tire storage portion 2 is formed by denting the general surface of the floor panel 1, and the spare tire pan 2a as the bottom surface has a spare tire contact portion 2b with which the spare tire contacts. The spare tire contact portion 2 b has an annular shape surrounding the spare tire fixing means 3. Further, the height (depth) of the spare tire storage unit 2 is higher than the width (height) of the spare tire, so that the spare tire can be sufficiently stored.

  The spare tire fixing means 3 includes a bracket 3a, a bolt 3b, and a clamp 3c. The bracket 3a is a metal steel plate having a cross-sectional hat shape. A bolt through hole 3d is formed on the top surface, and a weld nut 3e is fixed to the inner side corresponding to the bolt through hole 3d. The bracket 3a is fixed to the spare tire pan 2a by spot welding. The bolt 3b passes through the bolt through hole 3d of the bracket 3a and is screwed into the weld nut 3e. The clamp 3c is integrally fixed to the head of the bolt 3b and has a pressing surface 3f that comes into contact with the disk wheel of the spare tire.

  The storage member 10 includes a storage member main body 11. Here, the storage member main body 11 is a hollow molded product formed by blow molding WPC (Wood Fiber-Polyomer Composites). The upper surface 11a of the storage member main body 11 is formed with a plurality of storage recesses 12 opened upward, and a clamp fixing space 13 opened upward, and a leg portion 14 protruding downward is formed on the lower surface 11b. Is formed. The height of the storage member 10 is set to be approximately the same as the height (depth) of the spare tire storage portion 2 and is flush with the floor panel 1.

  The storage recess 12 is a recess having a rectangular shape when viewed from above, and can store small items and the like. Each storage recess 12 has an inner diameter that gradually increases toward the opening end for convenience of die cutting. Here, each storage recess 12 is individually set to an arbitrary size.

  The clamp fixing space 13 is disposed at the center position of the storage member main body 11, and a bolt through hole 13 a that penetrates the storage member main body 11 is formed at the center. Around the bolt through hole 13a, a clamp contact surface 13b that contacts the pressing surface 3f of the clamp 3c is formed.

  The leg portion 14 is an annular protrusion continuous over the entire circumference of the storage member main body 11, and has a smooth fixing force transmission surface 14 a that contacts the spare tire contact portion 2 b at the tip portion.

Next, the operation will be described.
First, “the rear structure of the vehicle of the comparative example and its problems” will be described, and subsequently, “fixing force transmission action” in the rear structure of the vehicle of the first embodiment will be described.

[Compared vehicle rear structure and its problems]
FIG. 4 is an explanatory view showing the rear structure of the vehicle of the comparative example, where (a) shows a state with a spare tire and (b) shows a state without a spare tire. FIG. 5 is a graph showing the correlation between the vibration frequency and the acceleration vibration level.

  In the rear structure of the vehicle of the comparative example, the spare tire 100 is usually stored in the spare tire storage portion 101 formed at the rear portion of the vehicle (see FIG. 4A). At this time, the spare tire 100 is fixed by the spare tire fixing means 102 provided in the spare tire storage unit 101.

  The spare tire fixing means 102 includes a bracket 102a that is welded and fixed to a spare tire pan 101a that is the bottom surface of the spare tire storage unit 101, a bolt 102b that is screwed to the bracket 102a, and a clamp that is integrally fixed to the head of the bolt 102b. 102c.

  And in order to fix the spare tire 100, the spare tire 100 is first accommodated in the spare tire accommodating part 101 in the state which removed the volt | bolt 102b. At this time, a part of the tire portion 100a of the spare tire 100 comes into contact with the spare tire contact portion 101b of the spare tire pan 101a. Next, the bolt 102b is inserted into the disc wheel 100b of the spare tire 100 and screwed into the bracket 102a. As a result, the clamp 102c comes into contact with the disk wheel 100b of the spare tire 100 and presses the disk wheel 100b. Here, since a part of the tire part 100a is in contact with the spare tire contact part 101b, the fixing force (axial weight) of the clamp 102c generated by tightening the bolt 102b is transmitted from the disc wheel 100b to the tire part 100a. This is transmitted to the spare tire contact portion 101b through the tire portion 100a. In addition, the fixing force (axial weight) at this time is about 100 to 250 kgf.

  Thus, when the spare tire 100 is fixed, the fixing force at this time is transmitted to the spare tire contact portion 101b, and the spare tire 100 is pressed and fixed to the spare tire pan 101a. Thereby, in the state in which the spare tire 100 is stored, the rigidity of the spare tire pan 101a is high.

  On the other hand, when the spare tire 100 is removed by use or the like, there is nothing in the spare tire storage unit 101 (see FIG. 4B). For this reason, the fixing force (axial weight) from the clamp 102c cannot be transmitted to the spare tire pan 101a, and the rigidity of the spare tire pan 101a is reduced.

  As a result, the spare tire pan 101a is likely to vibrate due to vehicle vibration or the like. Therefore, as shown in FIG. 5, when there is a spare tire 100 (when there is a spare tire) and when there is no spare tire 100 (when there is no spare tire), the acceleration vibration level changes significantly, and the sound of the vehicle There was a problem that the vibration performance changed.

  In particular, when designing a vehicle, the spare tire 100 is fixed to the spare tire storage unit 101 by the spare tire fixing means 102, that is, the spare tire pan 101a is pressed with a predetermined load, and has a certain rigidity. It is assumed that Therefore, tuning of sound vibration performance is performed on the premise that the spare tire 100 is fixed. Therefore, if the spare tire 100 is eliminated, the premise for tuning of the sound vibration performance (the rigidity of the spare tire pan 101a) changes, so that the sound vibration performance may be reduced, and drumming, booming noise, road noise, and the like may increase. there were.

[Fixing force transmission action]
In the rear structure of the vehicle of the first embodiment, the storage member 10 is stored in the spare tire storage section 2 and fixed by the spare tire fixing means 3 instead of the spare tire 100 in the rear structure of the vehicle of the comparative example.

  In order to store and fix the storage member 10, first, the storage member 10 is placed on the spare tire pan 2 a and the storage member 10 is stored in the spare tire storage portion 2. At this time, the spare tire contact portion 2b of the spare tire pan 2a and the fixing force transmission surface 14a of the leg portion 14 of the storage member 10 are positioned so as to contact each other. In addition, the bolt 3b of the spare tire fixing means 3 is removed beforehand.

  Next, the bolt 3b is inserted into the bolt through hole 13a of the storage member 10 and screwed into the weld nut 3e of the bracket 3a. At this time, the bolt 3b is tightened until the pressing surface 3f of the clamp 3c contacts the clamp contact surface 13b.

  As a result, the storage member 10 is sandwiched between the spare tire pan 2 a and the clamp 3 c and is fixed in the spare tire storage portion 2 by the spare tire fixing means 3. At this time, the fixing force (axial weight) of the clamp 3c generated by tightening the bolt 3b of the spare tire fixing means 3 is transmitted from the clamp 3c to the clamp contact surface 13b of the storage member 10, and further the leg 14 It is transmitted from the fixing force transmission surface 14a to the spare tire contact portion 2b. In addition, the fixing force (axial weight) at this time is about 100 to 250 kgf.

  As described above, in the rear structure of the vehicle according to the first embodiment, the storage member 10 is fixed using the spare tire fixing means 3 instead of the spare tire, so that the spare tire is stored in the spare tire storage unit 2 in the same manner. In addition, the fixing force of the clamp 3c can be transmitted to the spare tire contact portion 2b. That is, when the storage member 10 is pressed against the spare tire contact portion 2b, the spare tire pan 2a has the same rigidity as when the spare tire is stored, and compared with the case where there is a spare tire (when there is a spare tire). No change occurs in the acceleration vibration level (see FIG. 5). As a result, changes in sound vibration phenomena such as drumming, road noise, and booming noise that are affected by the rigidity of the spare tire pan 2a can be suppressed, and changes in sound vibration performance can be suppressed.

  Further, the storage member 10 has a plurality of storage recesses 12... That can store small items, and is excellent in usability. The height of the storage member 10 is set to be approximately the same as the height (depth) of the spare tire storage portion 2 and is flush with the floor panel 1. For this reason, the storage member 10 fits under the trunk board 4 that covers the spare tire storage portion 2, and the appearance and the convenience of the trunk room are improved. Since the storage member 10 can be fixed by the spare tire fixing means 3 used for fixing the spare tire, it is not necessary to change the vehicle body structure, and the vent cost can be greatly reduced.

  In particular, in the rear structure of the vehicle of the first embodiment, the spare tire contact portion 2b has an annular shape surrounding the spare tire fixing means 3, and the fixing force transmission surface 14a is in an annular shape that contacts almost the entire surface of the spare tire contact portion 2b. It is a surface. For this reason, since the distribution of the load applied to the spare tire contact portion 2b is equivalent to that at the time of storing the spare tire, the rigidity of the spare tire pan 2a hardly changes, and the change in sound vibration performance can be further suppressed.

Next, the effect will be described.
In the rear structure of the vehicle according to the first embodiment, the following effects can be obtained.

(1) A rear portion of a vehicle provided with a spare tire storage portion 2 capable of storing a spare tire 100 formed at the rear of the vehicle, and a spare tire fixing means 3 for fixing the spare tire 100 to the spare tire storage portion 2 In the structure, the spare tire storage unit 2 includes a storage member 10 that is stored in place of the spare tire 100 and is fixed by the spare tire fixing means 3, and the storage member 10 is formed by the spare tire fixing means 3. A fixing force transmission surface 14a for transmitting the fixing force to the vicinity of the spare tire contact portion 2b of the spare tire storage portion 2 is provided.
For this reason, the change in the sound vibration performance of the vehicle can be suppressed.

(2) In addition to the effect of (1), the spare tire contact portion 2b has a ring shape surrounding the spare tire fixing means 3, and the fixing force transmission surface 14a is formed of the spare tire contact portion 2b. It was set as the structure made into the annular surface which contacts the substantially whole surface.
For this reason, the distribution of the load applied to the spare tire contact portion 2b can be made equal to that at the time of storing the spare tire, and a change in sound vibration performance can be further suppressed.

(Modification 1)
FIG. 6 is a cross-sectional view illustrating a first modification of the rear structure of the vehicle according to the first embodiment.

  In the rear structure of the vehicle of the first modification, the housing member body of the housing member 10A is made of an outer member 10Aa in which polypropylene (PP) is hollow molded by blow molding, and a foam filler 10Ab filled in the outer member 10Aa. And consisted of

  In this case, the rigidity of the storage member 10A can be made higher than that of the storage member 10 of the first embodiment, and the load resistance via the trunk board 4 can be increased. Moreover, the load load to the spare tire pan 2a of the spare tire storage part 2 can be raised.

(Modification 2)
FIG. 7 is a cross-sectional view illustrating a second modification of the rear structure of the vehicle according to the first embodiment.

  The storage member 10B in the rear structure of the vehicle according to the second modified example includes a storage member main body 10Ba made of polypropylene (PP) by blow molding and a reinforcing member 10Bb provided on the back side of the storage member main body 10Ba, have. The reinforcing member 10Bb is formed of a metal steel plate or a hard resin plate, and covers substantially the entire back surface of the storage member body 10Ba.

  In this case, the rigidity of the storage member 10B can be higher than that of the storage member 10 of the first embodiment, and the load resistance via the trunk board 4 can be increased. Moreover, the load load to the spare tire pan 2a of the spare tire storage part 2 can be raised.

(Modification 3)
FIG. 8 is a cross-sectional view illustrating a third modification of the rear structure of the vehicle according to the first embodiment.

  In the rear structure of the vehicle of the third modified example, a rubber seat 18 is sandwiched between the fixing force transmission surface 14Ca of the leg portion 14C of the storage member 10C and the spare tire pan 2a.

  In this case, even if a bead is formed on the fixing force transmission surface 14Ca and the spare tire pan 2a due to performance requirements, or the fixing force transmission surface 14Ca and the spare tire pan 2a cannot be smoothed for manufacturing reasons, The load can be transmitted from the fixing force transmitting surface 14Ca to the spare tire contact portion 2b via the pin 18. That is, the contact between the fixing force transmission surface 14Ca and the spare tire contact portion 2b can be ensured. Further, by adjusting the thickness of the sheet 18, the resonance frequency of the storage member 10C can be controlled, and the sound vibration performance can be further improved.

(Modification 4)
FIG. 9 is a cross-sectional view illustrating a fourth modification of the rear structure of the vehicle according to the first embodiment.

  In the rear structure of the vehicle of the fourth modification, the fixing force transmission surface 14Da of the leg portion 14D of the storage member 10D is in contact with a position closer to the spare tire fixing means 3 than the spare tire contact portion 2b. That is, the fixing force transmission surface 14Da is in contact with the spare tire contact portion 2b.

  In this case, the leg portion 14D of the storage member 10D comes into contact with a position close to the spare tire fixing means 3, so that the storage member 10D is sufficiently attached to the spare tire pan 2a even if the fixing force by the spare tire fixing means 3 is small. Can be pressed. Therefore, the rigidity of the spare tire pan 2a can be further improved and vibration can be suppressed.

  In the fourth modification, the fixing force transmission surface 14Da is in contact with the inside of the spare tire contact portion 2b, but may be in contact with the outside of the spare tire contact portion 2b, for example. Even in this case, the rigidity of the spare tire pan 2a can be further improved and the vibration can be suppressed by adjusting the fixing force of the spare tire fixing means 3.

(Modification 5)
FIG. 10 is a cross-sectional view illustrating a fifth modification of the rear structure of the vehicle according to the first embodiment.

  In the rear structure of the vehicle according to the fifth modification, the storage member 10E is formed of a press-formed metal steel plate and has an open cross section opened downward. A mass 15 is provided by welding or the like on the back side of the clamp fixing space 13E of the storage member 10E.

  In this case, by making the storage member 10E have an open cross-sectional shape, it is possible to adjust the rigidity in the vertical direction and the rigidity in the horizontal direction (side direction), respectively, and the degree of freedom in design is improved. That is, for example, the load applied to the storage member 10E in the vertical direction can be increased, and the load from the horizontal direction (side direction) can be decreased. Therefore, for example, it is possible to secure a crushing space necessary at the time of a collision from the vehicle direction, or to increase the reaction force at the time of deformation.

  Further, depending on the vehicle, the spare tire has an effect like a dynamic damper, and the vibration of the spare tire pan 2a may be suppressed at a specific frequency. On the other hand, by providing the mass 15 on the back side of the clamp fixing space 13E, the storage member 10E can have an effect like a dynamic damper. For this reason, the storage member 10E can be resonated in a frequency band equivalent to the resonance frequency of the spare tire, and deterioration of sound vibration performance can be suppressed.

(Modification 6)
FIG. 11 is a cross-sectional view illustrating a sixth modification of the rear structure of the vehicle according to the first embodiment.

  In the rear structure of the vehicle according to the sixth modified example, the cylindrical support portion 13Fc that contacts the top surface of the bracket 3a of the spare tire fixing means 3 is formed in the clamp fixing space 13F of the storage member 10F. The cylindrical support portion 13Fc is in contact with the bracket 3a at an inner position (position closer to the center) than the clamp contact surface 13Fb of the clamp fixing space 13F.

  In this case, the storage member 10F and the bracket 3a are in contact with each other, and when the bolt 3b is tightened, the load is stably transmitted from the fixing force transmission surface 14Fa of the leg portion 14F to the spare tire contact portion 2b. Can do.

(Modification 7)
12A and 12B are diagrams showing a modified example 7 of the rear structure of the vehicle according to the first embodiment, in which FIG. 12A is a bottom view and FIG. 12B is a cross-sectional view taken along the line DD in FIG. FIG.

  In the storage member 10G having the rear structure of the vehicle according to the modified example 7, an annular leg portion 14G having a fixing force transmission surface 14Ga that contacts the spare tire contact portion 2b is divided into a plurality of portions in the circumferential direction.

  In this case, since a gap S is generated between the plurality of divided leg portions 14G, for example, an in-vehicle jack or a tool J can be disposed in the gap, and the space between the storage member 10G and the spare tire pan 2a can be set. Can be used effectively.

(Modification 8)
FIG. 13 is a diagram illustrating a modification 8 of the rear structure of the vehicle according to the first embodiment, where (a) is a perspective view and (b) is a cross-sectional view.

  In the rear structure of the vehicle according to the modified example 8, the outer periphery of the upper surface 10Ha of the storage member 10H has the same shape as the opening 2c of the spare tire storage unit 2, and the storage member 10H is fitted into the opening 2c. It is like that. Further, the plurality of storage recesses 12H,... Formed in the storage member 10H and the clamp fixing space 13H are respectively closed by the lid members 16, and are flush with the floor panel 1.

  In this case, when a heavy object is placed above the spare tire storage part 2, the load of the heavy object can be supported flush with the floor panel 1 by the storage member 10H without setting a trunk board. In addition, the appearance member can be prevented from being deteriorated by covering the storage member 10H with a carpet or the like as necessary.

(Modification 9)
FIG. 14 is a diagram showing a modification 9 of the rear structure of the vehicle according to the first embodiment, where (a) is a bottom view, and (b) is an EE cross-sectional view in FIG. (c) is FF sectional drawing in Fig.14 (a).

  A storage member 10J having a rear structure of the vehicle according to the modified example 9 includes a pair of leg portions 14J and 14J disposed at positions facing each other across the center, and a center along a direction orthogonal to the pair of leg portions 14J and 14J. And a pair of masses 17, 17 arranged at positions facing each other. Here, the masses 17 and 17 are fixed to the bottom surface 10Jb of the storage member 10J.

  Depending on the vehicle, the spare tire has an effect like a dynamic damper and may suppress the vibration of the spare tire pan 2a at a specific frequency. On the other hand, in the case of this modification 9, by providing the mass 17 on the bottom surface 10Jb of the storage member 10J, the storage member 10J can have an effect like a dynamic damper. For this reason, the storage member 10J can be resonated in a frequency band equivalent to the resonance frequency of the spare tire, and deterioration of sound vibration performance can be suppressed.

The rear structure of the vehicle according to the second embodiment is an example in which the storage member is divided in the vertical direction.

First, the configuration will be described. In addition, about the structure equivalent to Example 1, the same code | symbol as Example 1 is attached | subjected and description is abbreviate | omitted.
FIG. 15 is an exploded perspective view illustrating the rear structure of the vehicle according to the second embodiment. FIG. 16 is a cross-sectional view illustrating the rear structure of the vehicle according to the second embodiment.

  The storage member 20 in the rear structure of the vehicle according to the second embodiment includes a storage member main body 21, a leg portion 24 that is separate from the storage member main body 21, and supports the storage member main body 21 on the spare tire pan 2a. An interposition member 25 that is separate from the storage member main body 21 and is placed on the storage member main body 21 is provided.

  Here, the storage member main body 21 is a molded product made of a foam material containing countless bubbles therein. On the upper surface 21a of the storage member main body 21, a plurality of storage recesses 22 open upward and a clamp fixing space 23 open upward are formed. Further, the lower surface 21 b of the storage member main body 21 has a shape along the leg portion 24.

  The leg portion 24 is a press-formed product obtained by pressing a metal steel plate into a conical shape. The leg portion 24 has a smooth fixing force transmission surface 24a that contacts the spare tire contact portion 2b of the spare tire pan 2a at the peripheral portion. Here, the fixing force transmission surface 24a is an annular surface that contacts almost the entire surface of the ring-shaped spare tire contact portion 2b. A flat fixing force receiving portion 24 b that receives the fixing force of the spare tire fixing means 3 is formed at the center of the leg portion 24. A bolt through hole 24c through which the bolt 3b passes is formed at the center of the fixing force receiving portion 24b.

  Further, a collar 26 is disposed inside the bolt through hole 23 a of the clamp fixing space 23 of the storage member main body 21. The collar 26 is a metal cylinder open at both ends, the upper end surface abuts against the pressing surface 3f of the clamp 3c of the spare tire fixing means 3, and the lower end surface abuts against the fixing force receiving portion 24b of the leg portion 24. .

  Here, the interposition member 25 is a molded product made of a foam material containing innumerable bubbles therein, and has a disk shape covering the upper surface 21 a of the storage member main body 21. The interposition member 25 is located on the storage member main body 21 and supports a load applied to the trunk board 4 that covers the spare tire storage portion 2. When the intervention member 25 is positioned on the storage member main body 21, the upper surface 25 a does not protrude from the spare tire storage portion 2 and is set to a thickness that is flush with the floor panel 1. Here, the interposition member 25 is fixed to the trunk board 4.

Next, the operation will be described.
FIGS. 17A and 17B are diagrams illustrating the usage state of the rear structure of the vehicle according to the second embodiment. FIG. 17A illustrates a case where the spare tire contact portion is relatively small, and FIG. 17B illustrates the spare tire contact portion being relatively large. Show the case.

  In the rear structure of the vehicle according to the second embodiment, the storage member 20 is divided into a storage member main body 21, a leg portion 24, and an interposition member 25. Therefore, as shown in FIGS. 17 (a) and 17 (b), if the size of the spare tire contact portion 2b is different, the size of the leg portion 24 can be changed according to the spare tire contact portion 2b. 21 can use a common thing.

  Similarly, by adjusting the thickness of the interposition member 25 according to the height (depth) of the spare tire storage portion 2, the upper surface position of the storage member 20 and the floor can be adjusted while the storage member main body 21 is shared. The panel 1 can be flush with the panel 1. For this reason, the load acting on the trunk board 4 can be supported by the storage member main body 21 via the interposed member 25.

  In this way, the storage member main body 21 that is expensive to manufacture can be shared by multiple vehicle types, and an increase in cost can be suppressed. Moreover, the cost increase as a whole of the storage member 20 can be suppressed by responding to the change suppression effect of the sound vibration performance by the design change of the leg portion 24.

  Furthermore, here, by forming the leg portion 24 of a metal steel plate, the thickness (height) can be suppressed as compared with the resin product, and the capacity of the storage recess 22 can be ensured to be large.

  In the rear structure of the vehicle according to the second embodiment, the housing member main body 21 is formed of a foamed member, whereby the appearance can be improved and the sound insulation can be improved.

Next, the effect will be described.
In the rear structure of the vehicle according to the second embodiment, the following effects can be obtained.

(3) In addition to the effect of the above (1), the storage member 20 includes a storage member main body 21 having a storage concave portion 22 and a separate member from the storage member main body 21, and the spare tire contact portion 2b. And a leg 24 having the fixing force transmission surface 24a disposed therebetween.
Accordingly, if the size of the leg portion 24 is changed in accordance with the spare tire contact portion 2b, the storage member main body 21 that is expensive to manufacture can be shared among multiple vehicle types, and the manufacturing cost can be suppressed. .

(Modification 1)
18A and 18B are diagrams illustrating a first modification of the rear structure of the vehicle according to the second embodiment, in which FIG. 18A is a perspective view, and FIG. 18B is a cross-sectional view taken along line GG in FIG.

  In the rear structure of the vehicle according to the first modification of the second embodiment, the storage member main body 21A of the storage member 20A is formed of a hollow molded product obtained by blow molding a resin. Further, the intervention member 25A is divided into a plurality of parts so as to be arranged at a position that does not interfere with the storage recess 22A and the clamp fixing space 23A on the upper surface 21Aa of the storage member main body 21A.

  In this case, as compared with the second embodiment, the storage member main body 21A can be formed at a low cost, and the interposed member 25A can be made small. For this reason, the manufacturing cost can be reduced.

(Modification 2)
FIG. 19 is a cross-sectional view illustrating a second modification of the rear structure of the vehicle according to the second embodiment.

  In the storage member 20B having the rear structure of the vehicle according to the second modification, the collar 26B inserted into the bolt through hole 23Ba of the clamp fixing space 23B of the storage member main body 21B and the leg portion 24B are press-formed of a metal steel plate. Is integrally molded.

  In this case, the number of parts can be reduced, the cost can be reduced, and the collar 26B and the leg portion 24B are not displaced, so load transmission can be performed uniformly.

(Modification 3)
FIG. 20 is a cross-sectional view illustrating a third modification of the rear structure of the vehicle according to the second embodiment.

  In the storage member 20C having the rear structure of the vehicle according to the third modification, the leg portion 24C is divided into a shared portion 27Ca having a fixing force receiving portion 24Cb and a vehicle type corresponding portion 27Cb having a fixing force transmitting surface 24Ca. Here, both the shared portion 27Ca and the vehicle type corresponding portion 27Cb are formed by pressing a metal steel plate.

  The shared portion 27Ca is integrated with the storage member main body 21C, and a common portion can be used regardless of the vehicle type. On the other hand, the vehicle type corresponding part 27Cb can be divided from the shared part 27Ca, and can be used as appropriate according to the size of the spare tire contact part 2b. For this reason, only the vehicle type corresponding portion 27Cb needs to be changed according to the vehicle type, and the manufacturing cost can be reduced, and the followability, simplification, and weight reduction of the vehicle type corresponding portion 27Cb can be achieved.

  In the third modification, the intervention member 25C is divided so as to be disposed at a position that does not interfere with the storage recess 22C in the upper surface 21Ca of the storage member main body 21C. For this reason, cost reduction can be further achieved.

(Modification 4)
FIGS. 21A and 21B are views showing a leg portion applied to a fourth modification of the rear structure of the vehicle according to the second embodiment, in which FIG. 21A is a plan view and FIG. 21B is a direction of arrow H in FIG. It is the side view seen from (c), and is JJ sectional drawing in Fig.21 (a).

  In the rear structure of the vehicle of the fourth modification, the leg portion 24D is formed by a combination of a metal steel plate and a metal bar. Here, a disk member 24Db ′ having a fixing force receiving portion 24Db located in the central portion and a ring member 24Da ′ having a fixing force transmitting surface 24Da located in the peripheral portion are formed by pressing a metal steel plate. Yes. The disk member 24Db ′ and the ring member 24Da ′ are connected by a plurality of metal bars 28,..., And the plurality of metal bars 28,. Thereby, weight reduction can be achieved.

  As described above, the rear structure of the vehicle according to the present invention has been described based on the first embodiment, the first to ninth modifications, the second embodiment, and the first to fourth modifications. The present invention is not limited to examples and modifications, and design changes and additions are permitted without departing from the spirit of the invention according to each claim of the claims.

  In the above-described embodiments and modifications, a plurality of storage recesses are formed, but one storage recess may be provided. Also, the shape and arrangement can be any shape.

  Further, the overall shape of the storage member is not limited to a disk shape, and any shape can be used as long as the fixing force can be transmitted to the spare tire contact portion 2b of the spare tire pan 2a.

DESCRIPTION OF SYMBOLS 1 Floor panel 2 Spare tire storage part 2a Spare tire pan 2b Spare tire contact part 3 Spare tire fixing means 3a Bracket 3b Bolt 3c Clamp 3f Holding surface 4 Trunk board 10 Storage member 11 Storage member main body 12 Storage recessed part 13 Clamp fixing space 13b Clamp Contact surface 14 Leg 14a Fixed force transmission surface

Claims (3)

In a rear structure of a vehicle, comprising: a spare tire storage portion capable of storing a spare tire formed at the rear of the vehicle; and a spare tire fixing means for fixing the spare tire to the spare tire storage portion.
The spare tire storage unit is stored in place of the spare tire, and has a storage member fixed by the spare tire fixing means,
The rear structure of the vehicle, wherein the storage member includes a fixing force transmission surface that transmits a fixing force by the spare tire fixing means to the vicinity of the spare tire contact portion of the spare tire storage portion. In the rear structure of the vehicle according to claim 1,
The storage member includes a storage member main body having a storage recess, and a leg portion that is separate from the storage member main body and is disposed between the spare tire contact portion and the fixing force transmission surface. A rear structure of a vehicle, comprising: In the rear structure of the vehicle according to claim 1 or 2,
The spare tire contact portion has an annular shape surrounding the spare tire fixing means,
The rear structure of the vehicle, wherein the fixing force transmission surface is an annular surface that contacts substantially the entire surface of the spare tire contact portion.