Vehicle body structure and method for manufacturing vehicle body

Abstract

The invention provides a vehicle body structure and a method of manufacturing a vehicle body. A vehicle body structure is provided with: a first vehicle body structure member which is a metal cast product and which is provided with a main body section and a protruding section protruding from the main body section; a second vehicle body structural member provided with an inserted part into which the protruding part can be inserted; and a connecting member that connects the protruding portion and the portion to be inserted.

Description

Technical Field

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

[0002] A technique related to an automobile body is disclosed in Japanese Unexamined Patent Application Publication No. 2020-152188. In this automobile body, a front side member, a crash energy absorber, etc., which also form part of the vehicle body, are connected to a reinforcing plate made of die-cast aluminum that forms part of the vehicle body.

[0003] However, in the above-mentioned prior art, the connecting portions of the front side member and the crash energy absorber on the reinforcing plate are formed in a cylindrical shape, and the front side member and the crash energy absorber are also formed in a cylindrical shape.

[0004] Therefore, when connecting the reinforcing plate and the front side member, etc., it is necessary to arrange a gasket or the like for bearing the tension generated by the connecting member for connecting them, and thus it is considered that this will complicate the manufacturing process of the vehicle body.

[0005] In view of the above facts, an object of the present disclosure is to obtain a vehicle body structure and a method for manufacturing a vehicle body that can ensure the connection strength between a cast vehicle body structure member and other vehicle body structure members while suppressing the complication of the manufacturing process of the vehicle body. Summary of the Invention

[0006] The vehicle body structure according to the first aspect includes: a first vehicle body structure member, which is a metal casting and has a main body portion and a protruding portion protruding from the main body portion; a second vehicle body structure member, which has an insertion portion into which the protruding portion can be inserted; and a connecting member, which connects the protruding portion and the insertion portion.

[0007] According to the vehicle body structure according to the first aspect, a first vehicle body structure member made of a metal casting is provided, and the first vehicle body structure member has a main body portion. Therefore, in this aspect, for example, a structurally complex portion of the vehicle body is formed by the main body portion, thereby enabling the simplification of the manufacturing process of the vehicle body.

[0008] In addition, in this aspect, a second vehicle body structure member is provided, and a part of the vehicle body is also formed by the second vehicle body structure member.

[0009] When connecting the first vehicle body structure member and the second vehicle body structure member, a portion for bearing the tension generated by the connecting member for connecting them is required. However, if a gasket or the like for bearing the tension generated by the connecting member is arranged independently of these members, it is considered that the manufacturing process of the vehicle body will become complicated.

[0010] Here, in this embodiment, the first body structure member includes a protruding portion that protrudes from the main body portion. In a state where the protruding portion is inserted into the insertion portion provided in the second body structure member, the protruding portion and the insertion portion can be connected by a connecting member. Therefore, the protruding portion can support the tension generated when the protruding portion and the insertion portion are connected by the connecting member.

[0011] In the body structure according to the second embodiment, in the body structure according to the first embodiment, the protruding portion protrudes from the main body portion in the vehicle front-rear direction and is inserted into the insertion portion in the vehicle front-rear direction, and the protruding portion and the insertion portion are in surface contact in at least one of the vehicle vertical direction and the vehicle width direction.

[0012] According to the body structure according to the second embodiment, the protruding portion protrudes from the main body portion in the vehicle front-rear direction and is inserted into the insertion portion in the vehicle front-rear direction. Also, the protruding portion and the insertion portion are in surface contact in at least one of the vehicle vertical direction and the vehicle width direction. Therefore, in this embodiment, when loads around the vehicle front-rear direction act on the protruding portion and the insertion portion, it is possible to suppress a deviation in the relative positional relationship between the protruding portion and the insertion portion.

[0013] In the body structure according to the third embodiment, in the body structure according to the first or second embodiment, the connecting member connects the protruding portion and the insertion portion in a direction orthogonal to the vehicle front-rear direction.

[0014] According to the body structure according to the third embodiment, the connecting member connects the protruding portion and the insertion portion in a direction orthogonal to the vehicle front-rear direction, and the connecting member can support the loads around the vehicle front-rear direction acting on the protruding portion and the insertion portion.

[0015] In the body structure according to the fourth embodiment, in the body structure according to the third embodiment, the connecting member includes a shaft portion, and the shaft portion is inserted through the protruding portion and the insertion portion in a direction orthogonal to the vehicle front-rear direction.

[0016] According to the body structure according to the fourth embodiment, the connecting member includes a shaft portion, and the shaft portion is inserted through the protruding portion and the insertion portion in a direction orthogonal to the vehicle front-rear direction. Therefore, it is possible to ensure the rigidity against the loads around the vehicle front-rear direction at the connecting portion between the protruding portion and the insertion portion.

[0017] In the body structure according to the fifth embodiment, in the body structure according to any one of the first to fourth embodiments, the protruding portion includes a rib portion, and the rib portion extends along the protruding direction of the protruding portion from the main body portion.

[0018] According to the vehicle body structure according to the fifth mode, a rib portion is provided on the protruding portion, and the rib portion extends along the protruding direction of the protruding portion from the main body portion, so that the rigidity of the protruding portion against the load in the direction orthogonal to the protruding direction can be ensured.

[0019] In the vehicle body structure according to the sixth mode, in the vehicle body structure according to any one of the second mode to the fifth mode, a curved surface portion is provided at a portion on the upper vehicle side at the top end portion of the protruding portion, and the curved surface portion is curved in a convex manner toward the upper vehicle side when viewed from the vehicle width direction.

[0020] According to the vehicle body structure according to the sixth mode, a curved surface portion is provided at a portion on the upper vehicle side at the top end portion of the protruding portion, and the curved surface portion is curved in a convex manner toward the upper vehicle side when viewed from the vehicle width direction. Therefore, the resistance when inserting the protruding portion into the inserted portion can be reduced.

[0021] In the vehicle body structure according to the seventh mode, in the vehicle body structure according to the sixth mode, a lower edge portion at a portion on the front vehicle side of the protruding portion is inclined downward from the front vehicle side toward the rear vehicle side when viewed from the vehicle width direction.

[0022] According to the vehicle body structure according to the seventh mode, a lower edge portion at a portion on the front vehicle side of the protruding portion is inclined downward from the front vehicle side toward the rear vehicle side when viewed from the vehicle width direction. Therefore, the vertical length at the portion on the front vehicle side of the protruding portion becomes shorter as it approaches the front vehicle side, so that the protruding portion can be easily inserted into the inserted portion.

[0023] In the vehicle body structure according to the eighth mode, in the vehicle body structure according to any one of the first mode to the seventh mode, the second vehicle body structure member is a crash energy absorbing box, and the crash energy absorbing box includes the inserted portion and a shock absorbing portion that can absorb a part of the collision load input from the vehicle front-rear direction by being compressed and deformed in the vehicle front-rear direction.

[0024] According to the vehicle body structure according to the eighth mode, the second vehicle body structure member is a crash energy absorbing box, and a part of the collision load input from the vehicle front-rear direction can be absorbed by the shock absorbing portion of the crash energy absorbing box being compressed and deformed in the vehicle front-rear direction. In addition, by inserting the protruding portion into the inserted portion provided in the crash energy absorbing box, when the crash energy absorbing box is mounted on the first vehicle body structure member, the protruding portion can be used as a guide member for guiding the crash energy absorbing box to the mounting position.

[0025] In the vehicle body structure according to the ninth mode, in the vehicle body structure according to any one of the first mode to the eighth mode, the main body portion is configured to include a wheel housing portion that can accommodate a part of the tire.

[0026] According to the vehicle body structure according to the ninth aspect, the main body portion of the first vehicle body structure member as a metal casting is configured to include a wheel housing portion capable of accommodating a part of a tire. Therefore, compared with a structure in which the protruding portion and the wheel housing are formed of different members, the number of members constituting the vehicle body can be reduced.

[0027] In the vehicle body structure according to the tenth aspect, in the vehicle body structure according to the ninth aspect, the main body portion is configured to include a pair of the wheel housing portions arranged at intervals in the vehicle width direction and a connecting portion that connects the wheel housing portions in the vehicle width direction.

[0028] According to the vehicle body structure according to the tenth aspect, the main body portion of the first vehicle body structure member as a metal casting is configured to include a pair of wheel housing portions arranged at intervals in the vehicle width direction and a connecting portion that connects these wheel housing portions in the vehicle width direction. Therefore, in this aspect, when manufacturing the vehicle body, the pair of wheel housing portions can be assembled on the vehicle body as one member. As a result, the manufacturing process of the vehicle body can be simplified and the number of members constituting the vehicle body can be reduced.

[0029] A method of manufacturing a vehicle body according to the eleventh aspect casts a first vehicle body structure member having a main body portion and a protruding portion protruding from the main body portion, inserts the protruding portion into an insertion portion provided in a second vehicle body structure member, and connects the protruding portion and the insertion portion using a connecting member.

[0030] According to the method of manufacturing a vehicle body according to the eleventh aspect, first, the first vehicle body structure member is cast. And, the cast first vehicle body structure member has a main body portion and a protruding portion protruding from the main body portion. Next, the protruding portion is inserted into the insertion portion provided in the second vehicle body structure member, and the protruding portion and the insertion portion are connected using a connecting member. At this time, the tension generated when connecting the protruding portion and the insertion portion using the connecting member can be supported by the protruding portion.

[0031] Disclosed effects

[0032] As described above, the vehicle body structure and the method of manufacturing a vehicle body according to the present disclosure 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 structure member and other vehicle body structure members. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Exemplary embodiments of the present disclosure will be described below with reference to the drawings, wherein:

[0034] Figure 1Exploded perspective view showing the structure of a vehicle body to which the vehicle body structure according to the first embodiment is applied.

[0035] Figure 2 Cross-sectional view taken from the vehicle width direction showing the structure of the main part in the vehicle body to which the vehicle body structure according to the first embodiment is applied (a cross-sectional view showing the state cut along the Figure 1 section line 2-2).

[0036] Figure 3 Perspective view showing the structure of a vehicle body to which the vehicle body structure according to the first embodiment is applied.

[0037] Figure 4 Exploded perspective view showing the structure of a vehicle body to which the vehicle body structure according to the second embodiment is applied.

[0038] Figure 5 Side view showing the structure of the crash energy absorber of the vehicle body to which the vehicle body structure according to the second embodiment is applied ( Figure 4 view from the 5 direction). Detailed implementation mode

[0039] <First embodiment>

[0040] Hereinafter, Figures 1 to 3 will be used to describe the first embodiment of the vehicle body structure according to the present disclosure. In addition, the arrow mark FR appropriately shown in each drawing indicates the front side of the vehicle, the arrow mark UP indicates the upper side of the vehicle, and the arrow mark RH indicates the right side in the vehicle width direction.

[0041] First, Figure 3 will be used to describe the schematic structure of the "vehicle body 10" to which the vehicle body structure according to the present embodiment is applied. In addition, in the present embodiment, since the vehicle body 10 is basically configured to be bilaterally symmetric, hereinafter, mainly the structure of the part on the right side in the vehicle width direction of the vehicle body 10 will be described, and the description of the structure of the part on the left side in the vehicle width direction will be appropriately omitted.

[0042] The vehicle body 10 includes an aluminum die-cast "front part 12" as a first vehicle body structure member that constitutes the front part on the vehicle front side thereof, a middle part (not shown) that constitutes the central part in the vehicle front-rear direction and includes a storage battery and a battery holder for holding the storage battery, and an aluminum die-cast rear part (not shown) that constitutes the rear part on the vehicle rear side thereof. Although not described in detail, the rear part is basically the same structure as the front part 12, and in the present embodiment, the rear part functions as a first vehicle body structure member.

[0043] As Figure 1As shown, the front part 12 is configured to include a "main body part 14" that constitutes its main portion and a pair of "protruding parts 16" that are integrally provided with the main body part 14. Moreover, the main body part 14 is configured to include a pair of side structure parts 14A and a "connecting part 14B" that connects the pair of side structure parts 14A to each other.

[0044] The side structure part 14A is configured to include a suspension tower part 14A1, a "wheel housing part 14A2", and a lower front pillar part 14A3. Moreover, the suspension tower part 14A1 is box-shaped with an opening on the vehicle lower side and a circular through-hole formed on its upper surface, and supports a shock absorber (not shown).

[0045] The wheel housing part 14A2 is integrally provided with the suspension tower part 14A1 and is spherical so as to be able to accommodate a part of a tire (not shown). The lower front pillar part 14A3 is arranged on the vehicle rear side of the wheel housing part 14A2. The lower front pillar part 14A3 extends along the vehicle up-and-down direction and constitutes the vehicle lower side part of the front pillar.

[0046] On the other hand, the connecting part 14B extends in the vehicle width direction and connects the vehicle rear side parts of the side structure parts 14A to each other in the vehicle width direction. In addition, the connecting part 14B is arranged so as to follow the leading edge part of the above-mentioned middle part.

[0047] As Figure 1 and Figure 2 shown, the protruding part 16 is configured to protrude forward from the vehicle front side part of the wheel housing part 14A2 of the main body part 14, and includes a pair of side wall parts 16A, a front wall part 16B, an upper wall part 16C, a front side reinforcing part 16D, a rear side reinforcing part 16E, and a "rib part 16F".

[0048] The side wall part 16A constitutes the vehicle width direction outer part of the protruding part 16 and is plate-shaped with the plate thickness direction being the vehicle width direction and extending along the vehicle front-rear direction. Moreover, a "lower edge part 16A1" at the vehicle front side part of the side wall part 16A slopes downward from the vehicle front side toward the vehicle rear side when viewed from the vehicle width direction.

[0049] The front wall part 16B constitutes the vehicle front side part of the protruding part 16 and is plate-shaped with the plate thickness direction being the vehicle front-rear direction. Moreover, the front side reinforcing part 16D is arranged above the vehicle upper side of the front wall part 16B.

[0050] The upper wall part 16C constitutes the vehicle upper side part of the protruding part 16 and is plate-shaped with the plate thickness direction being the vehicle up-and-down direction. Moreover, the front side reinforcing part 16D is arranged in front of and above the vehicle upper side of the upper wall part 16C.

[0051] The front side reinforcement portion 16D constitutes the portion on the vehicle upper side in the top end portion of the protruding portion 16, and is formed as a substantially solid cylindrical shape extending along the vehicle width direction. Further, the front side reinforcement portion 16D is provided with a "curved surface portion 16D1" that is curved so as to bulge upward on the vehicle side when viewed from the vehicle width direction, and a through portion 18 that penetrates in the vehicle width direction is formed at the central portion thereof when viewed from the vehicle width direction.

[0052] The rear side reinforcement portion 16E is disposed on the vehicle lower side of the upper wall portion 16C on the vehicle lower side of the front side reinforcement portion 16D, and is formed as a substantially rectangular parallelepiped shape extending along the vehicle width direction. Further, the rear side reinforcement portion 16E is provided with a curved surface portion 16E1 that is curved so as to bulge downward on the vehicle side when viewed from the vehicle width direction, and a through portion 20 that penetrates in the vehicle width direction is formed at the portion on the vehicle lower side thereof when viewed from the vehicle width direction.

[0053] The rib portion 16F extends in the vehicle longitudinal direction with the vehicle width direction as the plate thickness direction at the center portion in the vehicle width direction on the vehicle upper side of the upper wall portion 16C, and connects the front side reinforcement portion 16D and the wheel housing portion 14A2 in the vehicle longitudinal direction. Moreover, the rib portion 16F strengthens the protruding portion 16 against loads in a direction orthogonal to the vehicle longitudinal direction. In addition, the portion of the side wall portion 16A on the vehicle upper side of the upper wall portion 16C can also be regarded as a reinforcing rib portion that strengthens the protruding portion 16 in the same manner as the rib portion 16F.

[0054] Moreover, a "crash box 22" that is a second vehicle body structure member constituting a part of the vehicle body 10 is mounted on the protruding portion 16 configured as described above. The crash box 22 includes an "impact absorbing portion 22A" that constitutes the portion on the vehicle front side thereof and an "inserted portion 22B" that constitutes the portion on the vehicle rear side thereof, and is integrally formed from an aluminum alloy extrusion profile.

[0055] Specifically, the impact absorbing portion 22A is configured to include a cylindrical portion 22A1 having an outer shape that is a square cylinder shape extending in the vehicle longitudinal direction and a rib portion 22A2 provided inside the cylindrical portion 22A1. Moreover, the impact absorbing portion 22A can absorb a part of the collision load input from the vehicle longitudinal direction by being compressed and deformed in the vehicle longitudinal direction. In addition, a bumper reinforcement 24 extending in the vehicle width direction is mounted at the top end portion of the impact absorbing portion 22A (refer to Figure 3 ).

[0056] On the other hand, the inserted portion 22B is formed in a rectangular tube shape extending in the vehicle front-rear direction by extending the cylindrical portion 22A1 toward the rear side of the vehicle, and the protruding portion 16 can be inserted into the inside thereof. Further, through portions 26 corresponding to the through portion 18 and through portions 28 corresponding to the through portion 20 are provided at a portion on the outer side in the vehicle width direction and a portion on the inner side in the vehicle width direction of the inserted portion 22B, respectively.

[0057] Moreover, in a state where the protruding portion 16 is inserted into the inserted portion 22B, the through portion 18 and the through portion 26, and the through portion 20 and the through portion 28 are respectively aligned. In this state, the shaft portion 30A of the "bolt 30" serving as a connecting member is inserted through the through portion 18 and the through portion 26, and the nut 32 is fastened to the shaft portion 30A. Further, the shaft portion 34A of the "bolt 34" serving as a connecting member is inserted through the through portion 20 and the through portion 28, and the nut 36 is fastened to the shaft portion 34A, whereby the crash energy absorbing box 22 can be mounted on the protruding portion 16.

[0058] In addition, in the present embodiment, in a state where the protruding portion 16 is inserted into the inserted portion 22B, at least one side wall portion 16A of the protruding portion 16 is in surface contact with the inner surface of the inserted portion 22B.

[0059] (Function and effect of the present embodiment)

[0060] Next, the function and effect of the present embodiment will be described.

[0061] In the present embodiment, as Figure 3 shown, the front part 12 is a casting made of metal, and the front part 12 includes a main body portion 14. Therefore, in the present embodiment, for example, by forming a portion of the vehicle body 10 having a complicated structure with the main body portion 14, the manufacturing process of the vehicle body 10 can be simplified.

[0062] Further, in the present embodiment, the crash energy absorbing box 22 is provided, and a part of the vehicle body 10 is also constituted by the crash energy absorbing box 22.

[0063] When connecting the front part 12 and the crash energy absorbing box 22, there is a portion that needs to withstand the tension generated by the bolts 30 and the bolts 34 connecting them. However, if gaskets or the like for withstanding the tension generated by the bolts 30 and the bolts 34 are arranged in addition to these components, it is considered that the manufacturing process of the vehicle body 10 becomes complicated.

[0064] Here, in the present embodiment, as Figure 1As shown, the front part 12 has a protruding part 16 that protrudes from the main body part 14. In a state where the protruding part 16 is inserted into the inserted part 22B provided in the crash energy absorber 22, the protruding part 16 and the inserted part 22B can be connected by bolts 30 and bolts 34. Therefore, the protruding part 16 can support the tension generated when the protruding part 16 and the inserted part 22B are connected by bolts 30 and bolts 34.

[0065] In addition, 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. Moreover, the protruding part 16 and the inserted part 22B are in surface contact in the vehicle width direction. Therefore, in the present embodiment, when loads around the vehicle longitudinal direction act on the protruding part 16 and the inserted part 22B, it is possible to suppress a deviation in the relative positional relationship between the protruding part 16 and the inserted part 22B.

[0066] In addition, in the present embodiment, the bolts 30 and bolts 34 connect the protruding part 16 and the inserted part 22B in a direction orthogonal to the vehicle longitudinal direction, specifically in the vehicle width direction, and can support the loads around the vehicle longitudinal direction acting on the protruding part 16 and the inserted part 22B by the bolts 30 and bolts 34.

[0067] In addition, in the present embodiment, the bolt 30 has a shaft part 30A, the bolt 34 has a shaft part 34A, and the shaft part 30A and the shaft part 34A are inserted through the protruding part 16 and the inserted part 22B along the vehicle width direction. Therefore, the rigidity against loads around the vehicle longitudinal direction at the connecting part between the protruding part 16 and the inserted part 22B can be ensured.

[0068] In addition, in the present embodiment, a rib part 16F is provided on the protruding part 16, and the rib part 16F extends along the protruding direction of the protruding part 16 from the main body part 14, so that the rigidity of the protruding part 16 against loads in a direction orthogonal to the protruding direction can be ensured.

[0069] In addition, in the present embodiment, a curved surface part 16D1 is provided at a part on the upper side of the vehicle of the tip part of the protruding part 16, and the curved surface part 16D1 is curved so as to bulge upward when viewed from the vehicle width direction. Therefore, the resistance when inserting the protruding part 16 into the inserted part 22B can be reduced.

[0070] In addition, in the present embodiment, as also Figure 2As shown, the lower edge portion 16A1 at the vehicle front side portion of the protruding portion 16 slopes downward from the vehicle front side toward the vehicle rear side when viewed in the vehicle width direction. Therefore, the length of the vehicle front side portion of the protruding portion 16 in the vertical direction becomes shorter as it approaches the vehicle front side, and the protruding portion 16 can be easily inserted into the inserted portion 22B.

[0071] In addition, in the present embodiment, by the shock absorption portion 22A of the crash energy absorber 22 being compressed and deformed in the vehicle front-rear direction, a part of the collision load input from the vehicle front-rear direction can be absorbed. Further, by inserting the protruding portion 16 into the inserted portion 22B provided in the crash energy absorber 22, when the crash energy absorber 22 is mounted to the front part 12, the protruding portion 16 can be used as a guide for guiding the crash energy absorber 22 to the mounting position.

[0072] In addition, in the present embodiment, the main body portion 14 of the front part 12, which is a metal casting, is configured to include a wheel housing portion 14A2 that can accommodate a part of the tire. Therefore, compared with a structure in which the protruding portion 16 and the wheel housing are formed of different components, the number of components constituting the vehicle body 10 can be reduced.

[0073] In addition, in the present embodiment, the main body portion 14 of the front part 12, which is a metal casting, is configured to include a pair of wheel housing portions 14A2 arranged at intervals in the vehicle width direction and a connecting portion 14B that connects these wheel housing portions 14A2 in the vehicle width direction. Therefore, in the present embodiment, when manufacturing the vehicle body 10, the pair of wheel housing portions 14A2 can be assembled to the vehicle body 10 as one component. As a result, the manufacturing process of the vehicle body 10 can be simplified and the number of components constituting the vehicle body 10 can be reduced.

[0074] Next, with reference to Figure 3 , a method for manufacturing the vehicle body 10 according to the present embodiment will be described.

[0075] In the manufacturing process of the vehicle body 10 according to the present embodiment, the front part 12 having 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 becomes the vehicle up-down direction when the vehicle body 10 is completed, in other words, the vehicle vertical direction.

[0076] Next, the protruding portion 16 is inserted into the inserted portion 22B provided in the crash energy absorber 22, and the protruding portion 16 and the inserted portion 22B are connected using the bolts 30 and the bolts 34.

[0077] Thus, 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 complication of the manufacturing process of the vehicle body 10 while ensuring the connection strength between the cast vehicle body structure member and other vehicle body structure members.

[0078] <Second Embodiment>

[0079] Next, use Figure 4 and Figure 5 to describe the vehicle body structure according to the second embodiment of the present disclosure. In addition, the same reference numerals are assigned to the structural elements common to the above first embodiment, and the description is appropriately omitted.

[0080] In the present embodiment, the feature is that the "protrusion 60" protrudes inward in the vehicle width direction from the wheel housing portion 14A2 in the main body portion 14 of the front part 12.

[0081] Specifically, the protrusion 60 is configured to include a peripheral wall portion 60A, a support portion 60B, a support portion 60C, and a reinforcing rib portion 60D that form its outer periphery.

[0082] Specifically, when viewed from the vehicle vertical direction, the peripheral wall portion 60A extends from the wheel housing portion 14A2 toward the vehicle front side at one end portion, bends in a convex manner toward the vehicle front side at a portion on the vehicle front side, and is connected to the wheel housing portion 14A2 at the other end portion on the vehicle rear side of the one end portion.

[0083] The support portion 60B is disposed on the inner peripheral side of the peripheral wall portion 60A on the vehicle front side, is formed in a cylindrical shape extending along the vehicle vertical direction, and has a through portion 62 penetrating along the vehicle vertical direction formed at its central portion when viewed from the vehicle vertical direction.

[0084] The support portion 60C is disposed on the inner peripheral side of the peripheral wall portion 60A on the vehicle rear side of the support portion 60B, is formed in a cylindrical shape extending along the vehicle vertical direction, and has a through portion 64 penetrating along the vehicle vertical direction formed at its central portion when viewed from the vehicle vertical direction.

[0085] The reinforcing rib portion 60D connects the support portion 60B, the support portion 60C, and its periphery 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 60C and the wheel housing portion 14A2.

[0086] On the other hand, the "crash box 66" as the second vehicle body structure member has substantially the same structure as the crash box 22, but as Figure 5As shown, the inserted portion 66A is open to the outside in the vehicle width direction.

[0087] 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 at the upper side portion and the lower side portion of the vehicle of the inserted portion 66A, respectively.

[0088] Moreover, in a state where the protruding portion 60 is inserted into the inserted portion 66A, the through portion 62 and the through portion 68, and the through portion 64 and the through portion 70 are respectively aligned. In this state, by inserting the "shaft portion 72A" of the "bolt 72" as a connecting member through the through portion 62 and the through portion 68 and fastening the nut 74 to the shaft portion 72A, and inserting the "shaft portion 76A" of the "bolt 76" as a connecting member through the through portion 64 and the through portion 70 and fastening the nut 78 to the shaft portion 76A, the crash energy absorbing box 66 can be mounted on the protruding portion 60.

[0089] In the present embodiment having the above structure, in addition to the functions and effects of inserting the protruding portion 16 in the vehicle front-rear direction into the inserted portion 22B of the crash energy absorbing box 22, it has the same functions and effects as the above-described first embodiment.

[0090] In addition, in the present embodiment, by inserting the protruding portion 60 in the vehicle width direction into the inserted portion 66A of the crash energy absorbing box 66, the crash energy absorbing box 66 can be arranged more inward in the vehicle width direction compared to the first embodiment, so that it can correspond to various vehicle specifications.

[0091] <Supplementary Explanation of the Above Embodiment>

[0092] (1) Although in the above embodiment, the crash energy absorbing box is mounted on the protruding portion of the front part 12, other components than the crash energy absorbing box can also be mounted on the protruding portion according to vehicle specifications and the like. In addition, when mounting a component on the protruding portion, fastening components such as rivets can be used in addition to bolts.

[0093] (2) In addition, the above embodiment can also be applied to an aluminum die-cast rear part constituting a part on the rear side of the vehicle according to vehicle specifications and the like.

Claims

1. A vehicle body structure, comprising: a first vehicle body structural member which is a metal casting and includes a main body and a protruding portion protruding from the main body; a second vehicle body structural member having an inserted portion into which the protruding portion can be inserted; A connecting member connects the protruding portion and the inserted portion.

2. The vehicle body structure according to claim 1, wherein: The protruding portion protrudes from the main body portion in the vehicle front-rear direction and is inserted into the inserted portion in the vehicle front-rear direction, and The protruding portion and the inserted portion are in contact with each other in at least one of a vehicle up-down direction and a vehicle width direction.

3. The vehicle body structure according to claim 2, wherein: The connecting member connects the protruding portion and the inserted portion in a direction perpendicular to the front-rear direction of the vehicle.

4. The vehicle body structure according to claim 3, wherein: The connecting member includes a shaft portion that is inserted through the protruding portion and the inserted portion in a direction orthogonal to a vehicle front-rear direction.

5. The vehicle body structure according to claim 1, wherein: The protrusion includes a rib extending along a protruding direction of the protrusion from the main body.

6. The vehicle body structure according to claim 2, wherein: A curved surface portion is provided at a portion on the vehicle upper side at a tip end portion of the protruding portion. The curved surface portion is curved so as to be convex toward the vehicle upper side when viewed from the vehicle width direction.

7. The vehicle body structure according to claim 6, wherein: A lower edge portion of the protruding portion at a portion on the vehicle front side is inclined downward from the vehicle front side toward the vehicle rear side when viewed from the vehicle width direction.

8. The vehicle body structure according to claim 1, wherein: The second vehicle body structural member is a crash box including the inserted portion and an impact absorbing portion capable of absorbing a portion of a collision load input from the vehicle front-rear direction by compressively deforming in the vehicle front-rear direction.

9. The vehicle body structure according to claim 1, wherein: The main body portion is configured to include a wheel house portion capable of housing a portion of a tire.

10. The vehicle body structure according to claim 9, wherein: The main body portion is configured to include a pair of the wheel house portions that are arranged at a distance in the vehicle width direction and a connecting portion that connects the wheel house portions in the vehicle width direction.

11. A method for manufacturing a vehicle body, wherein: Casting a first vehicle body structural member including a main body portion and a protruding portion protruding from the main body portion, inserting the protruding portion into an inserted portion provided on the second vehicle body structural member, The protruding portion and the inserted portion are connected by a connecting member.

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