Vehicle body structure and manufacturing method of vehicle body

Abstract

To provide a vehicle body structure capable of suppressing complication of a manufacturing process of a vehicle body while securing connection strength between a cast vehicle body component and the other vehicle body component, and a manufacturing method of the vehicle body.SOLUTION: A front component 12 of a vehicle body 10 is provided with a projecting portion 16 projecting from a main body portion 14, and the projecting portion 16 and an inserted portion 22B can be connected by a bolt 30 and a bolt 34 in a state that the projecting portion 16 is inserted into the inserted portion 22B provided in a crash box 22.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vehicle body structure and a method for manufacturing a vehicle body.

Background Art

[0002] Patent Document 1 below discloses an invention related to an automobile body. In this automobile body, a front side member and a crash box, which also form part of the vehicle body, are connected to an aluminum die-cast gusset that forms part of the vehicle body.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above prior art, the connecting portions of the front side member and the crash box in the gusset are cylindrical, and the front side member and the crash box are also cylindrical. Therefore, when connecting the gusset and the front side member or the like, it is necessary to arrange a spacer or the like that receives the tension from the connecting member for connecting them, and it is conceivable that the manufacturing process of the vehicle body becomes complicated.

[0005] In view of the above facts, an object of the present invention is to obtain a vehicle body structure and a method for manufacturing a vehicle body that can suppress the manufacturing process of the vehicle body from becoming complicated while ensuring the connection strength between a cast vehicle body component and other vehicle body components.

Means for Solving the Problems

[0006] The vehicle body structure according to the first aspect is made of a metal casting, and includes a first vehicle body component part having a main body part and a protruding part protruding from the main body part, a second vehicle body component part having an insertion part into which the protruding part can be inserted, and a connecting member that connects the protruding part and the insertion part.

[0007] According to the vehicle body structure according to the first aspect, it includes a first vehicle body component part made of a metal casting, and this first vehicle body component part has a main body part. Therefore, in this aspect, for example, by configuring a part with a complex structure in the vehicle body with the main body part, the simplification of the vehicle body manufacturing process can be achieved.

[0008] Also, in this aspect, it includes a second vehicle body component part, and a part of the vehicle body is also configured by this second vehicle body component part.

[0009] By the way, when connecting the first vehicle body component part and the second vehicle body component part, a part that receives the tension from the connecting member for connecting them is required. However, if a spacer or the like that receives the tension from the connecting member is arranged separately from these parts, it is considered that the vehicle body manufacturing process will become complicated.

[0010] Here, in this aspect, the first vehicle body component part has a protruding part protruding from the main body part. In a state where this protruding part is inserted into the insertion part provided in the second vehicle body component part, the protruding part and the insertion part can be connected by a connecting member. Therefore, the tension generated when connecting the protruding part and the insertion part with the connecting member can be supported by the protruding part.

[0011] The vehicle body structure according to the second aspect is the vehicle body structure according to the first aspect, wherein the protruding part protrudes from the main body part in the vehicle longitudinal direction, is inserted into the insertion part in the vehicle longitudinal direction, and the protruding part and the insertion part are in surface contact with each other in at least one of the vehicle vertical direction and the vehicle width direction.

[0012] According to the vehicle body structure according to the second aspect, the protruding portion protrudes from the main body portion in the vehicle longitudinal direction, and is inserted into the inserted portion in the vehicle longitudinal direction. The protruding portion and the inserted portion are in surface contact with each other in at least one of the vehicle vertical direction and the vehicle width direction. Therefore, in this aspect, when a load around the vehicle longitudinal direction acts on the protruding portion and the inserted portion, it is possible to suppress the relative positional relationship between the protruding portion and the inserted portion from shifting.

[0013] The vehicle body structure according to the third aspect is the vehicle body structure according to the first aspect or the second aspect, wherein the connecting member connects the protruding portion and the inserted portion in a direction orthogonal to the vehicle longitudinal direction.

[0014] According to the vehicle body structure according to the third aspect, the connecting member connects the protruding portion and the inserted portion in a direction orthogonal to the vehicle longitudinal direction, and the load around the vehicle longitudinal direction acting on the protruding portion and the inserted portion can be supported by the connecting member.

[0015] The vehicle body structure according to the fourth aspect is the vehicle body structure according to the third aspect, wherein the connecting member includes a shaft portion inserted through the protruding portion and the inserted portion in a direction orthogonal to the vehicle longitudinal direction.

[0016] According to the vehicle body structure according to the fourth aspect, the connecting member includes a shaft portion, and this shaft portion is inserted through the protruding portion and the inserted portion in a direction orthogonal to the vehicle longitudinal direction. Therefore, it is possible to ensure the rigidity against the load around the vehicle longitudinal direction at the connecting portion between the protruding portion and the inserted portion.

[0017] The vehicle body structure according to the fifth aspect is the vehicle body structure according to any one of the first aspect to the fourth aspect, wherein the protruding portion includes a rib portion extending along the protruding direction of the protruding portion from the main body portion.

[0018] According to the vehicle body structure according to the fifth aspect, a rib portion is provided on the protruding portion, and this rib portion extends along the protruding direction of the protruding portion from the main body portion, and it is possible to ensure the rigidity of the protruding portion against the load in the direction orthogonal to the protruding direction.

[0019] The vehicle body structure according to the sixth aspect is the vehicle body structure according to any one of the second to fifth aspects, in which a curved surface portion that is convex upward in the vehicle width direction and curved is provided at a portion above the vehicle at the tip of the protruding portion.

[0020] According to the vehicle body structure according to the sixth aspect, a curved surface portion is provided at a portion above the vehicle at the tip of the protruding portion, and this curved surface portion is convex upward in the vehicle width direction and curved. Therefore, the resistance when inserting the protruding portion into the insertion portion can be reduced.

[0021] The vehicle body structure according to the seventh aspect is the vehicle body structure according to the sixth aspect, in which a lower edge portion of the front side of the vehicle of the protruding portion has a downward gradient from the front side to the rear side of the vehicle when viewed in the vehicle width direction.

[0022] According to the vehicle body structure according to the seventh aspect, the lower edge portion of the front side of the vehicle of the protruding portion has a downward gradient from the front side to the rear side of the vehicle when viewed in the vehicle width direction. Therefore, the length in the vehicle longitudinal direction of the front side of the vehicle of the protruding portion becomes shorter as it goes toward the front side of the vehicle, and it is possible to facilitate the insertion of the protruding portion into the insertion portion.

[0023] The vehicle body structure according to the eighth aspect is the vehicle body structure according to any one of the first to seventh aspects, in which the second vehicle body component is a crash box including the insertion portion and a shock absorption portion capable of absorbing a part of a collision load input in the vehicle longitudinal direction by being compressed and deformed in the vehicle longitudinal direction.

[0024] According to the vehicle body structure according to the eighth aspect, the second vehicle body component is a crash box, and by the shock absorption part of the crash box being compressed and deformed in the vehicle longitudinal direction, a part of the collision load input from the vehicle longitudinal direction can be absorbed. Further, by inserting the protruding part into the inserted part provided in the crash box, when attaching the crash box to the first vehicle body component, the protruding part can be used as a guide for guiding the crash box to the attachment position.

[0025] The vehicle body structure according to the ninth aspect is the vehicle body structure according to any one of the first aspect to the eighth aspect, wherein the main body part includes a wheel house part capable of accommodating a part of the tire.

[0026] According to the vehicle body structure according to the ninth aspect, the main body part of the first vehicle body component, which is a metal casting, includes a wheel house part capable of accommodating a part of the tire. Therefore, compared with a configuration in which the protruding part and the wheel house are configured as separate parts, the number of parts of the components constituting the vehicle body can be reduced.

[0027] The vehicle body structure according to the tenth aspect is the vehicle body structure according to the ninth aspect, wherein the main body part includes a pair of the wheel house parts arranged at intervals in the vehicle width direction and a connecting part connecting the wheel house parts in the vehicle width direction.

[0028] According to the vehicle body structure according to the tenth aspect, the main body part of the first vehicle body component, which is a metal casting, includes a pair of wheel house parts arranged at intervals in the vehicle width direction and a connecting part connecting these wheel house parts in the vehicle width direction. Therefore, in this aspect, during the manufacture of the vehicle body, the pair of wheel house parts can be assembled to the vehicle body as one part. As a result, while simplifying the manufacturing process of the vehicle body, the number of parts of the components constituting the vehicle body can be reduced.

[0029] The method for manufacturing a vehicle body according to the eleventh aspect involves casting a first vehicle body component including a main body portion and a protruding portion protruding from the main body portion, inserting the protruding portion into an insertion portion provided in a second vehicle body component, and connecting the protruding portion and the insertion portion with a connecting member.

[0030] According to the method for manufacturing a vehicle body according to the eleventh aspect, first, a first vehicle body component is cast. The cast first vehicle body component includes a main body portion and a protruding portion protruding from the main body portion. Next, the protruding portion is inserted into an insertion portion provided in a second vehicle body component, and the protruding portion and the insertion portion are connected with a connecting member. At this time, the tension generated when connecting the protruding portion and the insertion portion with the connecting member is supported by the protruding portion.

Advantages of the Invention

[0031] As described above, the vehicle body structure and the method for manufacturing a vehicle body according to the present invention have an excellent effect of being able to suppress the manufacturing process of the vehicle body from becoming complicated while ensuring the connection strength between the cast vehicle body component and other vehicle body components.

Brief Description of the Drawings

[0032]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0033] <First Embodiment> Hereinafter, a first embodiment of the vehicle body structure according to the present invention will be described with reference to FIGS. 1 to 3. Note that the arrow FR appropriately shown in each figure indicates the front side of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow RH indicates the right side in the vehicle width direction.

[0034] First, with reference to FIG. 3, a schematic configuration of the "vehicle body 10" to which the vehicle body structure according to the present embodiment is applied will be described. In the present embodiment, since the vehicle body 10 basically has a bilaterally symmetric configuration, hereinafter, the configuration of the right side portion of the vehicle body 10 in the vehicle width direction will be mainly described, and the description of the configuration of the left side portion in the vehicle width direction will be omitted as appropriate.

[0035] The vehicle body 10 includes a "front part 12" made of aluminum die-cast as a first vehicle body component that constitutes the front side portion of the vehicle body in the vehicle front-rear direction, a center part (not shown) that constitutes the central part in the vehicle front-rear direction and includes a battery and a battery frame for holding the battery, and a rear part (not shown) made of aluminum die-cast that constitutes the rear side portion of the vehicle body. Although not described in detail, the rear part basically has the same configuration as the front part 12, and in the present embodiment, the rear part functions as a first vehicle body component.

[0036] As shown in FIG. 1, the front part 12 includes a "main body part 14" that constitutes its main part and a pair of "protruding parts 16" provided integrally with the main body part 14. The main body part 14 includes a pair of side component parts 14A and a "connecting part 14B" that connects the side component parts 14A to each other.

[0037] The side component part 14A includes a suspension tower part 14A1, a "wheelhouse part 14A2", and a front pillar lower part 14A3. The suspension tower part 14A1 has a box shape with an open lower side and a circular through-hole formed on the upper surface, and supports a shock absorber (not shown).

[0038] The wheel house portion 14A2 is provided integrally with the suspension tower portion 14A1 and has a spherical shape capable of accommodating a part of a tire (not shown). A front pillar lower portion 14A3 is disposed on the vehicle rear side of the wheel house portion 14A2. The front pillar lower portion 14A3 extends in the vehicle up-and-down direction and constitutes the portion of the front pillar on the vehicle lower side.

[0039] On the other hand, the connecting portion 14B extends in the vehicle width direction and connects the portions on the vehicle rear side of the side constituting portions 14A in the vehicle width direction. Further, the connecting portion 14B is disposed along the front edge portion of the center part described above.

[0040] As shown in FIGS. 1 and 2, the protruding portion 16 protrudes forward of the vehicle from the portion on the vehicle front side in the wheel house portion 14A2 of the main body portion 14, and includes a pair of side wall portions 16A, a front wall portion 16B, an upper wall portion 16C, a front side reinforcing portion 16D, a rear side reinforcing portion 16E, and a "rib portion 16F".

[0041] The side wall portion 16A constitutes the portion on the outer side in the vehicle width direction of the protruding portion 16, and is in a plate shape extending in the vehicle front-rear direction with the plate thickness direction being the vehicle width direction. Further, the "lower edge portion 16A1" in the portion on the vehicle front side of the side wall portion 16A has a downward gradient from the vehicle front side toward the vehicle rear side when viewed in the vehicle width direction.

[0042] The front wall portion 16B constitutes the portion on the vehicle front side of the protruding portion 16, and is in a plate shape with the plate thickness direction being the vehicle front-rear direction. And a front side reinforcing portion 16D is disposed above the front wall portion 16B in the vehicle.

[0043] The upper wall portion 16C constitutes the portion on the vehicle upper side of the protruding portion 16, and is in a plate shape with the plate thickness direction being the vehicle up-and-down direction. And a front side reinforcing portion 16D is disposed on the vehicle front and vehicle upper side of the upper wall portion 16C.

[0044] The front reinforcing portion 16D constitutes the portion on the upper side of the vehicle at the tip of the protruding portion 16, and is formed in a substantially solid cylindrical shape extending in the vehicle width direction. Further, the front reinforcing portion 16D is provided with a "curved surface portion 16D1" that curves convex upward in the vehicle width direction when viewed from the vehicle width direction on the upper side portion of the vehicle, and a through portion 18 that penetrates in the vehicle width direction is formed at the center thereof when viewed from the vehicle width direction.

[0045] The rear reinforcing portion 16E is disposed on the lower side of the vehicle of the upper wall portion 16C on the lower side of the vehicle of the front reinforcing portion 16D, and is formed in a substantially rectangular parallelepiped shape extending in the vehicle width direction. Further, the rear reinforcing portion 16E is provided with a curved surface portion 16E1 that curves convex downward in the vehicle width direction when viewed from the vehicle width direction on the lower side portion of the vehicle, and a through portion 20 that penetrates in the vehicle width direction is formed at the lower side portion thereof when viewed from the vehicle width direction.

[0046] The rib portion 16F extends in the vehicle front-rear direction with the plate thickness direction being the vehicle width direction at the center in the vehicle width direction on the upper side of the vehicle of the upper wall portion 16C, and connects the front reinforcing portion 16D and the wheel house portion 14A2 in the vehicle front-rear direction. And the rib portion 16F reinforces the protruding portion 16 against loads in a direction orthogonal to the vehicle front-rear direction. Note that the portion on the upper side of the vehicle of the side wall portion 16A relative to the upper wall portion 16C can also be regarded as a reinforcing rib portion that reinforces the protruding portion 16 in the same manner as the rib portion 16F.

[0047] And a "crash box 22" as a second vehicle body component part constituting a part of the vehicle body 10 is attached to the protruding portion 16 configured as described above. The crash box 22 includes a "shock absorption portion 22A" that constitutes the portion on the front side of the vehicle and an "insertion portion 22B" that constitutes the portion on the rear side of the vehicle, and is integrally formed of an aluminum alloy extrusion material.

[0048] Specifically, the shock absorption part 22A includes a cylindrical part 22A1 with a rectangular cylindrical shape whose outer shape extends in the vehicle longitudinal direction, and a rib part 22A2 provided inside the cylindrical part 22A1. And the shock absorption part 22A can absorb part of the collision load input from the vehicle longitudinal direction by compressing and deforming it in the vehicle longitudinal direction. Note that a bumper reinforcement 24 extending in the vehicle width direction is attached to the tip of the shock absorption part 22A (see Fig. 3).

[0049] On the other hand, the inserted part 22B is configured in a rectangular cylindrical shape extending in the vehicle longitudinal direction by extending the cylindrical part 22A1 to the rear side of the vehicle, and the protruding part 16 can be inserted inside it. Further, a through-hole 26 corresponding to the through-hole 18 and a through-hole 28 corresponding to the through-hole 20 are provided in each of the outer part and the inner part in the vehicle width direction of the inserted part 22B, respectively.

[0050] And in the state where the protruding part 16 is inserted into the inserted part 22B, the through-hole 18 is aligned with the through-hole 26, and the through-hole 20 is aligned with the through-hole 28. In this state, the shaft part 30A of the "bolt 30" as a connecting member is inserted through the through-hole 18 and the through-hole 26, and a nut 32 is fastened to the shaft part 30A. The shaft part 34A of the "bolt 34" as a connecting member is inserted through the through-hole 20 and the through-hole 28, and a nut 36 is fastened to the shaft part 34A, whereby the crash box 22 is attached to the protruding part 16.

[0051] Note that in this embodiment, in the state where the protruding part 16 is inserted into the inserted part 22B, at least one side wall part 16A of the protruding part 16 is in surface contact with the inner surface of the inserted part 22B.

[0052] (Actions and effects of this embodiment) Next, the actions and effects of this embodiment will be described.

[0053] In the present embodiment, as shown in FIG. 3, a front part 12 made of a metal casting is provided, and this front part 12 includes a main body part 14. Therefore, in the present embodiment, for example, by configuring a portion with a complex structure in the vehicle body 10 with the main body part 14, the manufacturing process of the vehicle body 10 can be simplified.

[0054] Further, in the present embodiment, a crash box 22 is provided, and a part of the vehicle body 10 is also constituted by this crash box 22.

[0055] By the way, when connecting the front part 12 and the crash box 22, a portion that receives the tension by bolts 30 and 34 for connecting them is required. However, if spacers or the like that receive the tension by bolts 30 and 34 are arranged separately from these parts, it is conceivable that the manufacturing process of the vehicle body 10 will become complicated.

[0056] Here, in the present embodiment, as shown in FIG. 1, the front part 12 includes a protruding part 16 protruding from the main body part 14, and in a state where this protruding part 16 is inserted into an inserted part 22B provided in the crash box 22, the protruding part 16 and the inserted part 22B can be connected by bolts 30 and 34. Therefore, the tension generated when connecting the protruding part 16 and the inserted part 22B with bolts 30 and 34 can be supported by the protruding part 16.

[0057] Further, in the present embodiment, the protruding part 16 protrudes from the main body part 14 in the vehicle longitudinal direction, and is inserted into the inserted part 22B in the vehicle longitudinal direction. And the protruding part 16 and the inserted part 22B are in surface contact in the vehicle width direction. Therefore, in the present embodiment, when a load around the vehicle longitudinal direction acts on the protruding part 16 and the inserted part 22B, it is possible to suppress the relative positional relationship between the protruding part 16 and the inserted part 22B from shifting.

[0058] Further, in the present embodiment, bolts 30 and 34 connect the protruding portion 16 and the inserted portion 22B in a direction orthogonal to the vehicle front-rear direction, specifically in the vehicle width direction, and the bolts 30 and 34 can support the load around the vehicle front-rear direction acting on the protruding portion 16 and the inserted portion 22B.

[0059] Further, in the present embodiment, bolt 30 includes a shaft portion 30A, and bolt 34 includes a shaft portion 34A, and the shaft portion 30A and the shaft portion 34A are inserted into the protruding portion 16 and the inserted portion 22B in the vehicle width direction. Therefore, it is possible to ensure the rigidity with respect to the load around the vehicle front-rear direction at the connection portion between the protruding portion 16 and the inserted portion 22B.

[0060] Further, in the present embodiment, a rib portion 16F is provided on the protruding portion 16, and the rib portion 16F extends along the protruding direction from the main body portion 14 of the protruding portion 16, and it is possible to ensure the rigidity of the protruding portion 16 with respect to the load in the direction orthogonal to the protruding direction.

[0061] Further, in the present embodiment, a curved surface portion 16D1 is provided on the upper vehicle side portion at the tip of the protruding portion 16, and the curved surface portion 16D1 is curved convex upward on the vehicle side when viewed from the vehicle width direction. Therefore, the resistance when inserting the protruding portion 16 into the inserted portion 22B can be reduced.

[0062] Further, in the present embodiment, as also shown in FIG. 2, the lower edge portion 16A1 of the front vehicle side portion of the protruding portion 16 has a downward gradient from the front vehicle side toward the rear vehicle side when viewed from the vehicle width direction. Therefore, the length of the front vehicle side portion of the protruding portion 16 in the vehicle front-rear direction becomes shorter as it goes toward the front vehicle side, and it is possible to facilitate the insertion of the protruding portion 16 into the inserted portion 22B.

[0063] Further, in the present embodiment, the shock-absorbing portion 22A of the crash box 22 is compressed and deformed in the vehicle longitudinal direction, so that a part of the collision load input from the vehicle longitudinal direction can be absorbed. Further, by inserting the protruding portion 16 into the inserted portion 22B provided in the crash box 22, when the crash box 22 is attached to the front part 12, the protruding portion 16 can be used as a guide for guiding the protruding portion 16 to the attachment position of the crash box 22.

[0064] Further, in the present embodiment, the main body portion 14 of the front part 12, which is a metal casting, includes a wheel house portion 14A2 capable of accommodating a part of the tire. Therefore, the number of parts of the components constituting the vehicle body 10 can be reduced as compared with a configuration in which the protruding portion 16 and the wheel house are configured as separate parts.

[0065] In addition, in the present embodiment, the main body portion 14 of the front part 12, which is a metal casting, includes a pair of wheel house portions 14A2 arranged at intervals in the vehicle width direction, and a connecting portion 14B connecting these wheel house portions 14A2 in the vehicle width direction. Therefore, in the present embodiment, when manufacturing the vehicle body 10, the pair of wheel house portions 14A2 can be assembled to the vehicle body 10 as one part. As a result, while simplifying the manufacturing process of the vehicle body 10, the number of parts of the components constituting the vehicle body 10 can be reduced.

[0066] Next, with reference to FIG. 3, a method for manufacturing the vehicle body 10 according to the present embodiment will be described.

[0067] In the manufacturing process of the vehicle body 10 according to the present embodiment, the front part 12 including the main body portion 14 and the protruding portion 16 protruding from the main body portion 14 is cast. At this time, the mold opening direction of the casting mold for casting the front part 12 is the vehicle vertical direction at the time of completion of the vehicle body 10, in other words, the vehicle vertical direction.

[0068] Next, the protruding portion 16 is inserted into the inserted portion 22B provided in the crash box 22, and the protruding portion 16 and the inserted portion 22B are connected using bolts 30 and bolts 34.

[0069] In this way, the vehicle body structure of the vehicle body 10 and the manufacturing method of the vehicle body 10 according to the present embodiment can suppress the manufacturing process of the vehicle body 10 from becoming complicated while ensuring the connection strength between the cast vehicle body component parts and the other vehicle body component parts.

[0070] <Second Embodiment> Next, with reference to FIGS. 4 and 5, the vehicle body structure according to the second embodiment of the present invention will be described. Note that the same reference numerals are given to the constituent elements common to the first embodiment, and the description thereof will be omitted as appropriate.

[0071] In the present embodiment, the "protruding portion 60" is characterized in that it protrudes inward in the vehicle width direction from the wheel house portion 14A2 in the main body portion 14 of the front part 12.

[0072] Specifically, the protruding portion 60 includes a peripheral wall portion 60A that forms its outer periphery, a support column portion 60B, a support column portion 60C, and a reinforcing rib portion 60D.

[0073] Specifically, when viewed from the vehicle vertical direction, one end of the peripheral wall portion 60A extends from the wheel house portion 14A2 to the vehicle front side, is convex to the vehicle front side and curved in the portion on the vehicle front side, and is connected to the wheel house portion 14A2 at the other end on the vehicle rear side of one end.

[0074] The support column portion 60B is disposed on the inner peripheral side of the peripheral wall portion 60A on the vehicle front side and has a columnar shape extending in the vehicle vertical direction. When viewed from the vehicle vertical direction, a through portion 62 penetrating in the vehicle vertical direction is formed in the central portion thereof.

[0075] The support portion 60C is arranged on the vehicle rear side of the support portion 60B on the inner peripheral side of the peripheral wall portion 60A, and is formed in a columnar shape extending in the vehicle vertical direction. When viewed from the vehicle vertical direction, a through portion 64 penetrating in the vehicle vertical direction is formed in the central portion thereof.

[0076] The reinforcing rib portion 60D connects the support portion 60B and the support portion 60C and the periphery thereof on the inner peripheral side of the peripheral wall portion 60A. Specifically, the reinforcing rib portion 60D connects the support portion 60B and the support portion 60C, the peripheral wall portion 60A and the support portions 60B and 60C, and the support portion 60B and the wheel house portion 14A2.

[0077] On the other hand, although the "crash box 66" as the second vehicle body component has basically the same configuration as the crash box 22, as shown in FIG. 5, the inserted portion 66A is open to the outside in the vehicle width direction.

[0078] In addition, a through portion 68 corresponding to the through portion 62 and a through portion 70 corresponding to the through portion 64 are provided in each of the upper vehicle side portion and the lower vehicle side portion of the inserted portion 66A.

[0079] In a state where the protruding portion 60 is inserted into the inserted portion 66A, the through portion 62 is aligned with the through portion 68, and the through portion 64 is aligned with the through portion 70. In this state, the "shaft portion 72A" of the "bolt 72" as a connecting member is inserted into the through portion 62 and the through portion 68, a nut 74 is fastened to the shaft portion 72A, and the "shaft portion 76A" of the "bolt 76" as a connecting member is inserted into the through portion 64 and the through portion 70, and a nut 78 is fastened to the shaft portion 76A, whereby the crash box 66 is attached to the protruding portion 60.

[0080] In the present embodiment having the above configuration, the same operations and effects as those of the first embodiment described above are achieved, except for the operation and effect of inserting the protruding portion 16 into the inserted portion 22B of the crash box 22 in the vehicle longitudinal direction.

[0081] Further, in the present embodiment, by inserting the protruding portion 60 into the insertion portion 66A of the crash box 66 in the vehicle width direction, the crash box 66 can be arranged closer to the inner side in the vehicle width direction than in the first embodiment, and it is possible to cope with various vehicle specifications.

[0082] <Supplementary Explanation of the Above Embodiment> (1) In the above-described embodiment, a crash box is attached to the protruding portion of the front part 12. However, depending on vehicle specifications and the like, parts other than the crash box may be attached to the protruding portion. Also, for attaching parts to the protruding portion, fastening members such as rivets in addition to bolts can be employed.

[0083] (2) Further, the above-described embodiment can also be applied to an aluminum die-cast rear part that constitutes a part on the rear side of the vehicle, depending on vehicle specifications and the like.

Explanation of Reference Numerals

[0084] 10 Vehicle body 12 Front part (first vehicle body component) 14 Main body part 14A2 Wheelhouse part 14B Connecting part 16 Protruding portion 16A1 Lower edge part 16D1 Curved surface part 16F Rib part 22 Crash box (second vehicle body component) 22A Impact absorbing part 22B Insertion part 30 Bolt (connecting member) 30A Shaft part 34 Bolt (connecting member) 34A Shaft part 60 Protruding portion 66 Crash box (second vehicle body component) 72 Bolt (connecting member) 72A Shaft part 76 Bolt (connecting member) 76A Shaft part

Claims

1. A first vehicle body component made of a metal casting, comprising a main body portion and a protruding portion protruding from the main body portion, a second vehicle body component having an insertion portion into which the protruding portion can be inserted, and a connecting member that connects the protruding portion and the insertion portion. A vehicle body structure having the above.

2. The protruding portion protrudes from the main body portion in the longitudinal direction of the vehicle, is inserted into the insertion portion in the longitudinal direction of the vehicle, and the protruding portion and the insertion portion are in surface contact with each other in at least one of the vertical direction and the width direction of the vehicle. The vehicle body structure according to Claim 1.

3. The connecting member connects the protruding portion and the insertion portion in a direction orthogonal to the longitudinal direction of the vehicle. The vehicle body structure according to Claim 2.

4. The connecting member includes a shaft portion inserted through the protruding portion and the insertion portion in a direction orthogonal to the longitudinal direction of the vehicle. The vehicle body structure according to Claim 3.

5. The protruding portion includes a rib portion extending along the protruding direction of the protruding portion from the main body portion. The vehicle body structure according to Claim 1.

6. A curved surface portion that is convex upward in the vehicle width direction as viewed from the vehicle width direction is provided at a portion above the vehicle of the tip of the protruding portion. The vehicle body structure according to Claim 2.

7. The lower edge portion of the front portion of the protruding portion in the vehicle has a downward gradient from the front side to the rear side of the vehicle as viewed from the vehicle width direction. The vehicle body structure according to Claim 6.

8. The second vehicle body component is a crash box including the insertion portion and a shock absorbing portion that can absorb a part of a collision load input from the longitudinal direction of the vehicle by compressing and deforming in the longitudinal direction of the vehicle. The vehicle body structure according to Claim 1.

9. The main body portion is configured to include a wheel house portion that can accommodate a part of a tire. The vehicle body structure according to Claim 1.

10. The main body portion is configured to include a pair of the wheel house portions arranged at intervals in the vehicle width direction and a connecting portion that connects the wheel house portions in the vehicle width direction. The vehicle body structure according to Claim 9.

11. Casting a first vehicle body component including a main body portion and a protruding portion protruding from the main body portion, inserting the protruding portion into an insertion portion provided in a second vehicle body component, and connecting the protruding portion and the insertion portion with a connecting member. A method for manufacturing a vehicle body.

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