Rocker structure

Abstract

To provide a rocker structure whose length in the longitudinal direction of a vehicle can be adjusted.SOLUTION: The rocker structure has: front members 42 that are provided at both sides in a vehicle width direction of a vehicle lower part and a vehicle front side, each extending in a vehicle longitudinal direction and having a closed cross-sectional structure; a rear member 44 that has a front end part inserted into an inner side of the front member 42, extends in the vehicle longitudinal direction, and has a closed cross-sectional structure; and fasteners 50, 52 that mechanically fasten the front member 42 and the rear member 44 in at least two states of a first state in which the amount of insertion of the rear member 44 into the front member 42 is large and a second state in which the amount of insertion is small.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a rocker structure.

Background Art

[0002] Patent Document 1 discloses a rocker composed of welding together flanges of a rocker inner having a hat-shaped cross section and a rocker outer having a hat-shaped cross section.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in order to accommodate shell bodies of different sizes, a structure capable of adjusting the length of the rocker in the vehicle front-rear direction is required.

[0005] An object of the present invention is to obtain a rocker structure capable of adjusting the length in the vehicle front-rear direction.

Means for Solving the Problems

[0006] The rocker structure according to claim 1 includes a front member provided on both sides in the vehicle width direction at the lower part of the vehicle and on the front side of the vehicle, extending in the vehicle front-rear direction and having a closed cross-section structure; a rear member having a front end portion inserted inside the front member, extending in the vehicle front-rear direction and having a closed cross-section structure; and a fastener for mechanically fastening the front member and the rear member in at least two states: a first state in which the insertion amount of the rear member with respect to the front member is large and a second state in which the insertion amount is small. The front member has a plurality of first insertion holes formed at intervals in the vehicle's longitudinal direction, the rear member has a plurality of second insertion holes formed at positions corresponding to the plurality of first insertion holes in at least the first and second states, a patch member is provided in front of the rear member in the second state, the front member and the rear member are mechanically fastened together in the second state by inserting the fastener through the first and second insertion holes, and the front member and the patch member are mechanically fastened together in the second state by inserting the fastener through the insertion holes formed in the patch member and the first insertion holes. .

[0007] In the rocker structure according to claim 1, front members are provided on both sides in the vehicle width direction at the lower and front side of the vehicle, and the front members extend in the longitudinal direction of the vehicle and are configured as closed sections. The front end of the rear member is inserted into the inside of the front member. The rear member extends in the longitudinal direction of the vehicle and is configured as closed sections. Furthermore, the front member and the rear member are mechanically fastened together by fasteners in at least two states: a first state in which the amount of insertion of the rear member into the front member is large, and a second state in which the amount of insertion is small. As a result, if the front member and the rear member are mechanically fastened together by fasteners in the first state, it is possible to accommodate vehicles with a relatively short wheelbase length of the shell body. If the front member and the rear member are mechanically fastened together by fasteners in the second state, it is possible to accommodate vehicles with a relatively long wheelbase length of the shell body.

[0009] Also In the first and second states, the first and second insertion holes are formed at corresponding positions. As a result, in either the first or second state, the first insertion hole of the front member and the second insertion hole of the rear member are in communication, so the front member and the rear member can be easily fastened together by inserting the fastener through the first and second insertion holes.

[0013] moreover In the second state, the patch member and the front member are mechanically fastened together with a fastener, thereby sealing the through-hole through which the fastener is inserted, and preventing water from entering the vehicle interior through the through-hole.

[0014] Claim 2 The rocker structure relating to claim 1 is such that the fastener is on the inner surface of the rear member and the inner surface of the patch member It comprises a weld nut fixed to the front member and a bolt screwed into the weld nut from the outside of the front member.

[0015] In the rocker structure according to claim 5, the front member and the rear member can be easily mechanically fastened together simply by screwing the bolts into the weld nuts. [Effects of the Invention]

[0016] As described above, the rocker structure according to the present invention makes it possible to adjust the length in the longitudinal direction of the vehicle. [Brief explanation of the drawing]

[0017] [Figure 1] This is an exploded perspective view showing the main parts of a vehicle to which the rocker structure described in the reference example is applied. [Figure 2] This is an enlarged cross-sectional view of the main part, showing the state after cutting along line 2-2 in Figure 1. [Figure 3] This is an enlarged cross-sectional view of the main part, showing the state when cut along line 3-3 in Figure 2, and represents the first state. [Figure 4] This is an enlarged cross-sectional view of the main part, showing the state when cut along line 3-3 in Figure 2, and represents the second state. [Figure 5] This figure, corresponding to Figure 4, shows the main parts of the rocker structure according to the embodiment. [Figure 6] This is an enlarged cross-sectional view of the main part of the rocker structure corresponding to the example shown in Figure 2. [Figure 7] This is an enlarged cross-sectional view of the main part, showing the state after cutting along line 7-7 in Figure 6. [Modes for carrying out the invention]

[0018] < Reference example > Reference example The rocker structure will be explained with reference to the drawings. The arrows UP, FR, and RH indicated in each drawing represent the upper side in the vertical direction of the vehicle, the front side in the longitudinal direction of the vehicle, and the right side of the vehicle when facing the direction of travel, respectively, in the vehicle 10 to which the rocker structure is applied. Hereafter, when simply referring to the longitudinal, vertical, and left-right directions, unless otherwise specified, these refer to the longitudinal direction of the vehicle, the vertical direction of the vehicle, and the left-right direction in the vehicle width direction.

[0019] Figure 1 shows Reference exampleIt is an exploded perspective view showing the main part of a vehicle 10 to which a rocker structure according to is applied. As shown in FIG. 1, the vehicle 10 to which the rocker structure is applied mainly includes a lower frame 12 and a shell body 14. The lower frame 12 constitutes the lower skeleton of the vehicle 10 and includes rockers 16 extending in the longitudinal direction of the vehicle.

[0020] The rockers 16 are provided on the outer side in the vehicle width direction at the lower part of the vehicle and extend in the longitudinal direction of the vehicle, and a pair of rockers 16 are provided on both sides in the vehicle width direction. Each of the rockers 16 is formed in a closed cross-sectional shape by extrusion molding or the like. Details of the rocker 16 will be described later.

[0021] The front ends of the pair of rockers 16 are connected in the vehicle width direction by a cross member 18. The cross member 18 extends in the vehicle width direction, and the rear end portions of the front side members 20 are connected to positions offset inward in the vehicle width direction from both ends in the vehicle width direction of the cross member 18. Therefore, the cross member 18 connects the front ends of the left and right pair of rockers 16 and the rear end portions of the left and right pair of front side members 20, respectively.

[0022] A pair of front side members 20 are provided on both sides in the vehicle width direction and extend in the longitudinal direction of the vehicle, respectively. The front side members 20 are formed in a closed cross-sectional shape by extrusion molding or the like, but may also have a closed cross-sectional structure by laminating steel plates. The front ends of the pair of front side members 20 are connected in the vehicle width direction by a front cross member 22. In addition, suspension towers 21 are provided on the pair of front side members 20, respectively.

[0023] The rear ends of a pair of rockers 16 are connected in the vehicle width direction by a cross member 19, to which the front ends of rear side members 24 are connected. A pair of rear side members 24 are provided in the vehicle width direction, and each extends in the vehicle longitudinal direction. The rear side members 24 are formed in a closed cross section by extrusion molding or the like, but a closed cross section structure may also be formed by overlapping steel plates. The rear ends of the pair of rear side members 24 are connected in the vehicle width direction by a rear cross member 26.

[0024] The shell body 14 constitutes the passenger compartment (cabin) of the vehicle 10 and mainly includes the front pillar section 30, the center pillar section 32, the rear pillar section 34, the roof side rail 35, the roof panel 36, the floor panel 38, and the side member outer panel 40.

[0025] The front pillar section 30 extends from the front end of the shell body 14 in the vertical direction of the vehicle. The center pillar section 32 extends further to the rear of the vehicle than the front pillar section 30 in the vertical direction of the vehicle. The rear pillar section 34 extends further to the rear of the vehicle than the center pillar section 32 in the vertical direction of the vehicle. Furthermore, the front pillar section 30, the center pillar section 32, and the rear pillar section 34 are provided on both sides in the vehicle width direction and have a closed cross-sectional structure so as to function as the skeleton of the shell body 14.

[0026] The roof side rails 35 connect the upper ends of the front pillar section 30, the center pillar section 32, and the rear pillar section 34 in the longitudinal direction of the vehicle, and are provided on both sides in the vehicle width direction. The roof panel 36 is installed between the left and right roof side rails 35, extends in the vehicle width direction and the vehicle longitudinal direction, and constitutes the ceiling of the passenger compartment.

[0027] The floor panel 38 is located at the bottom of the shell body 14 and extends in the vehicle width direction and the vehicle longitudinal direction, forming the floor surface of the passenger compartment. The floor panel 38 includes a center floor panel connected to the rocker 16 and a rear floor panel connected to the rear side member 24.

[0028] The side member outer panel 40 constitutes the outer panel of the shell body 14. Specifically, the side member outer panel 40 is provided on the outer surface of the frame of the front pillar section 30, the outer surface of the frame of the center pillar section 32, and the outer surface of the frame of the rear pillar section 34. The lower part of the side member outer panel 40 connects the lower ends of the front pillar section 30, the center pillar section 32, and the rear pillar section 34 in the longitudinal direction of the vehicle, and is the part that is fastened to the rocker 16.

[0029] A front opening is formed by the front pillar section 30, the center pillar section 32, the roof side rail 35, and the side member outer panel 40, and this front opening is closed by a front side door (not shown). Similarly, a rear opening is formed by the center pillar section 32, the rear pillar section 34, the roof side rail 35, and the side member outer panel 40, and this rear opening is closed by a rear side door (not shown).

[0030] (Rocca 16) Figure 2 is an enlarged cross-sectional view of the main part, showing the state when cut along line 2-2 in Figure 1. As shown in Figure 2, the rocker 16 is mainly composed of a front member 42 and a rear member 44.

[0031] The front members 42 are provided on both sides in the vehicle width direction at the lower and front of the vehicle, extending in the longitudinal direction of the vehicle and having a closed cross-sectional structure. Specifically, the front members 42 consist of a front upper wall 42U located at the top when viewed from the longitudinal direction of the vehicle, a front lower wall 42B located at the bottom, a front right wall 42R connecting the right ends of the front upper wall 42U and the front lower wall 42B, and a front left wall 42L connecting the left ends of the front upper wall 42U and the front lower wall 42B.

[0032] The front upper wall 42U has two first through holes 42H formed on the left and right sides when viewed from the front-rear direction of the vehicle. The front lower wall 42B has a first through hole 42H formed in the center of the vehicle width direction when viewed from the front-rear direction of the vehicle.

[0033] A first through-hole 42H is formed in the lower part of the front right wall 42R when viewed from the front-rear direction of the vehicle. A first through-hole 42H is formed in the center of the vertical direction when viewed from the front-rear direction of the vehicle. Therefore, the first through-holes 42H formed in the front member 42 are all formed so as to be offset in the axial direction. In addition, multiple first through-holes 42H are formed at intervals in the front-rear direction of the vehicle.

[0034] The rear member 44 extends in the longitudinal direction of the vehicle with its front end inserted inside the front member 42 and has a closed cross-sectional structure. Specifically, the rear member 44 is composed of a rear upper wall 44U located at the top when viewed from the longitudinal direction of the vehicle, a rear lower wall 44B located at the bottom, a rear right wall 44R connecting the right ends of the rear upper wall 44U and the rear lower wall 44B, and a rear left wall 44L connecting the left ends of the rear upper wall 44U and the rear lower wall 44B.

[0035] The rear upper wall 44U has two second through holes 44H formed on the left and right sides when viewed from the front-rear direction of the vehicle, and each of the second through holes 44H communicates with the first through hole 42H of the front upper wall 42U. The rear lower wall 44B has a second through hole 44H formed in the center of the vehicle width direction when viewed from the front-rear direction of the vehicle, and the second through hole 44H communicates with the first through hole 42H of the front lower wall 42B.

[0036] The rear right wall 44R has a second insertion hole 44H formed at the bottom when viewed from the front-rear direction of the vehicle, and the second insertion hole 44H is in communication with the first insertion hole 42H of the front right wall 42R. The rear left wall 44L has a second insertion hole 44H formed in the center in the vertical direction when viewed from the front-rear direction of the vehicle, and the second insertion hole 44H is in communication with the first insertion hole 42H of the front left wall 42L.

[0037] Here, the rear upper wall 44U, rear lower wall 44B, rear right wall 44R, and rear left wall 44L of the rear member 44 are each provided with weld nuts 50 that constitute fasteners. The weld nuts 50 are provided in positions corresponding to the second insertion hole 44H, and the front member 42 and the rear member 44 are fastened together by screwing a bolt 52 into the front member 42 (rocker 16) from the outside.

[0038] Here, book Reference example The rocker 16 is configured to transition between two states: a first state in which the rear member 44 is inserted a larger amount relative to the front member 42, and a second state in which the rear member 44 is inserted a smaller amount than in the first state. Figure 3 is an enlarged cross-sectional view of the main part showing the state cut along line 3-3 in Figure 2, and shows the first state. Figure 4 is also an enlarged cross-sectional view of the main part showing the state cut along line 3-3, and shows the second state.

[0039] As shown in Figure 3, in the first state where the rear member 44 is inserted into the front member 42 by a large amount, the front upper wall 42U and the rear upper wall 44U are fastened together at four points in the front-to-rear direction when viewed from the vehicle width direction. Also, the front lower wall 42B and the rear lower wall 44B are fastened together at four points in the front-to-rear direction when viewed from the vehicle width direction. Similar to the upper and lower walls, the front right wall 42R and the rear right wall 44R are fastened together at four points in the front-to-rear direction. In addition, although not shown in the figure, the front left wall 42L and the rear left wall 44L are fastened together at four points in the front-to-rear direction, similar to the right walls.

[0040] As shown in Figure 4, in the second state where the insertion amount of the rear member 44 into the front member 42 is small, the front upper wall 42U and the rear upper wall 44U are fastened at two points in the front-to-rear direction when viewed from the vehicle width direction. Also, the front lower wall 42B and the rear lower wall 44B are fastened at two points in the front-to-rear direction when viewed from the vehicle width direction. Similar to the upper and lower walls, the front right wall 42R and the rear right wall 44R are fastened at two points in the front-to-rear direction. Although not shown in the figure, similar to the right walls, the front left wall 42L and the rear left wall 44L are fastened at two points in the front-to-rear direction.

[0041] Thus, in both the first and second states, the front member 42 and the rear member 44 are mechanically fastened together by a bolt 52 and a weld nut 50, which are fasteners. Furthermore, in both the first and second states, the first through hole 42H and the second through hole 44H are configured to communicate with each other.

[0042] (action) Next, the intestines Reference example This explains the effect of [the function].

[0043] Book Reference example In the rocker structure described herein, as shown in Figure 3, the front member 42 extends in the longitudinal direction of the vehicle and is configured as a closed cross-section. The front end of the rear member 44 is inserted inside the front member 42, and the rear member 44 extends in the longitudinal direction of the vehicle and is configured as a closed cross-section. Furthermore, the front member 42 and the rear member 44 are mechanically fastened together by fasteners, a weld nut 50 and a bolt 52, in at least two states: a first state in which the rear member 44 is inserted into the front member 42 to a large extent, and a second state in which the insertion amount is small.

[0044] As a result, in the first state, if the front member 42 and the rear member 44 are mechanically fastened together with fasteners, the shell body 14 can accommodate vehicles with a relatively short wheelbase. In the second state, if the front member 42 and the rear member 44 are mechanically fastened together with fasteners, the shell body 14 can accommodate vehicles with a relatively long wheelbase. In this way, by making the length of the rocker 16 in the vehicle's longitudinal direction adjustable, it is possible to accommodate different shell bodies 14.

[0045] Also, book Reference example In the first and second states, the first insertion hole 42H and the second insertion hole 44H are formed in corresponding positions. As a result, in either the first or second state, the first insertion hole 42H of the front member 42 and the second insertion hole 44H of the rear member 44 are in communication, so the front member 42 and the rear member 44 can be easily fastened together by inserting the bolt 52 through the first insertion hole 42H and the second insertion hole 44H.

[0046] Furthermore, book Reference example In the front member 42, first through holes 42H are formed in at least two of the wall surfaces of the front upper wall 42U, front lower wall 42B, front right wall 42R, and front left wall 42L. In the rear member 44, second through holes 44H are formed in at least two of the wall surfaces of the rear upper wall 44U, rear lower wall 44B, rear right wall 44R, and rear left wall 44L. As a result, the front member 42 and the rear member 44 can be fastened together on two or more of the four wall surfaces, thus maintaining a good fastening state.

[0047] Furthermore, the above Reference example As shown in Figure 4, in the second state, the bolt 52 is not inserted through the first insertion hole 42H on the front side of the front member 42 and the second insertion hole 44H on the rear side of the rear member 44. Therefore, the insertion holes 42H and 44H may be sealed with a sealant or the like to prevent water from entering the vehicle interior. Also, as shown in Figure 5 Embodiment A patch member 60 may also be used as shown.

[0048] ( Embodiment ) Figure 5 shows Embodiment This is a diagram corresponding to Figure 4, showing the main parts of the rocker structure related to this. Embodiment In the second state, the patch member 60 is arranged inside the front member 42.

[0049] The patch member 60 is formed in a closed cross-section, similar to the front member 42 and the rear member 44, and consists of an upper wall 60U, a lower wall 60B, a right wall 60R, and a left wall (not shown). The length of the patch member 60 in the vehicle's longitudinal direction includes the length of the two fastening points, and its height in the vehicle's vertical direction is approximately the same as that of the rear member 44.

[0050] Here, the upper wall 60U of the patch member 60 has multiple through holes 60H formed at intervals in the vehicle's longitudinal direction. Similarly, the lower wall 60B of the patch member 60 also has multiple through holes 60H formed at intervals in the vehicle's longitudinal direction. Furthermore, weld nuts 50 are fixed to the inner wall of the patch member 60 at positions corresponding to the through holes 60H.

[0051] The through-holes 60H formed in the patch member 60 correspond to a plurality of first through-holes 42H formed in the front member 42, and the through-holes 60H of the patch member 60 and the first through-holes 42H of the front member 42 are in communication with each other. The front member 42 and the patch member 60 are then mechanically fastened together by fasteners, namely weld nuts 50 and bolts 52.

[0052] In this way, Embodiment By mechanically fastening the patch member 60 and the front member 42 with a fastener, the first through-hole 42H through which the fastener is inserted can be sealed, thereby preventing water from entering the vehicle interior. Alternatively, a bolt 52 may also be inserted through the second through-hole 44H.

[0053] < Reference example > Next, refer to Figures 6 and 7. Reference example The rocker structure related to this will be explained. Reference example Similar configurations are denoted by the same symbols, and explanations are omitted as appropriate.

[0054] Figure 6 shows Reference example An enlarged cross-sectional view of the main part of the rocker structure, corresponding to Figure 2, showing the main part of the rocker structure. Furthermore, Figure 7 is an enlarged cross-sectional view of the main part, showing the state when cut along line 7-7 in Figure 6.

[0055] As shown in Figure 6, Reference exampleThe rocker 72 that constitutes the vehicle 70 includes a front member 42 and a rear member 44. A floor panel 38 is also joined to the rocker 72. The floor panel 38 includes a general part 38A and an inner upper wall covering part 38B. The general part 38A extends in the vehicle width direction and the vehicle longitudinal direction, with the plate thickness direction being in the vehicle vertical direction, and constitutes the floor surface of the passenger compartment. The general part 38A is located below the upper end of the rocker 72.

[0056] The outer end of the general section 38A in the vehicle width direction extends upward along the front left wall 42L of the rocker 72 and is connected to the inner upper wall covering section 38B. The inner upper wall covering section 38B extends outward from the general section 38A in the vehicle width direction and is fastened to the rocker 72 in a state where it overlaps with the upper walls of the rocker 72 (front upper wall 42U and rear upper wall 44U).

[0057] Specifically, the inner upper wall covering portion 38B extends to the central part of the front upper wall 42U in the vehicle width direction, and an insertion hole is formed at a position corresponding to the weld nut 50. Then, the inner upper wall covering portion 38B is mechanically fastened together with the front member 42 and the rear member 44 by inserting a bolt 52 from above the inner upper wall covering portion 38B and screwing it into the weld nut 50.

[0058] A flange portion 38C extends upward from the outer end of the inner upper wall covering portion 38B in the vehicle width direction, and the flange portion 38C overlaps with the flange portion 40C of the side member outer panel 40.

[0059] The side member outer panel 40 includes an outer upper wall covering portion 40A that is fastened to the rocker 72 while overlapping the upper walls of the rocker 72 (front upper wall 42U and rear upper wall 44U). The inner end of the outer upper wall covering portion 40A in the vehicle width direction abuts against the inner upper wall covering portion 38B of the floor panel 38, and the outer end of the outer upper wall covering portion 40A in the vehicle width direction extends beyond the rocker 72 in the vehicle width direction.

[0060] An insertion hole is formed in the outer upper wall covering portion 40A, and this insertion hole communicates with the first insertion hole 42H of the front member 42 and the second insertion hole 44H of the rear member 44. Then, a bolt 52 is inserted from above the outer upper wall covering portion 40A and screwed into the weld nut 50, thereby mechanically fastening the outer upper wall covering portion 40A together with the front member 42 and the rear member 44.

[0061] A flange portion 40C extends upward from the inner end of the outer upper wall covering portion 40A in the vehicle width direction, and the flange portion 38C of the floor panel 38 and the flange portion 40C of the side member outer panel 40 are joined together by spot welding or the like in an overlapping state.

[0062] Furthermore, the side member outer panel 40 includes an outer wall covering portion 40B that extends downward from the outer upper wall covering portion 40A along the front right wall 42R and the rear right wall 44R. Through holes are formed in the outer wall covering portion 40B, and these through holes communicate with the first through hole 42H of the front member 42 and the second through hole 44H of the rear member 44. The outer wall covering portion 40B is then mechanically fastened together with the front member 42 and the rear member 44 by inserting bolts 52 from the outside of the outer wall covering portion 40B and screwing them into weld nuts 50.

[0063] As shown in Figure 7, the side member outer panel 40 extends along the rocker 72 in the longitudinal direction of the vehicle and is mechanically fastened by bolts 52 and weld nuts 50 while overlapping the front upper wall 42U of the front member 42 and the rear upper wall 44U of the rear member 44. In addition, a stepped portion is formed in the outer upper wall covering portion 40A of the side member outer panel 40, corresponding to the step difference between the front member 42 and the rear member 44.

[0064] (action) Next, the intestines Reference example This explains the effect of [the function].

[0065] Book Reference exampleIn the rocker structure described herein, the front member 42 and the rear member 44 are mechanically fastened together using bolts 52 and weld nuts 50 for fastening the floor panel 38 and the side member outer panel 40 to the rocker 72. This eliminates the need for a special fastener to connect the front member 42 and the rear member 44.

[0066] Furthermore, by removing the bolt 52 when replacing the shell body 14, the fastening between the front member 42 and the rear member 44 is released, making it easy to change the insertion depth of the rear member 44. In other words, the man-hours required when assembling shell bodies 14 of different sizes can be reduced. For other functions, see below. Reference example It is similar to that.

[0067] That's all. Reference example The rocker structure related to the present invention has been described, but it goes without saying that it can be implemented in various forms without departing from the spirit of the present invention. Reference example We have described two states: a first state in which the rear member 44 is inserted into the front member 42 by a large amount, and a second state in which the insertion amount is small. However, the invention is not limited to these states. That is, since the first insertion hole 42H of the front member 42 and the second insertion hole 44H of the rear member 44 are formed at approximately the same pitch in the longitudinal direction of the vehicle, the insertion amount of the rear member 44 can be freely adjusted using the length of adjacent insertion holes as the minimum unit.

[0068] Also, the above Reference example In this example, the same rear member 44 was used in both the first and second states, but this is not the only option. For example, in the second state, a member longer in the vehicle's longitudinal direction than the rear member 44 used in the first state may be used. This allows all first insertion holes 42H and second insertion holes 44H to be in communication even in the second state, thereby preventing water from entering the vehicle interior through the insertion holes.

[0069] Furthermore, although bolts 52 and weld nuts 50 were used as fasteners in the above embodiment, the invention is not limited to these, and other fasteners may be used. For example, rivets and clips may be used as fasteners for at least some of the fastening parts. [Explanation of symbols]

[0070] 42 Front member 42U Front top wall 42B Front lower wall 42R Front right wall (side wall) 42L Front left wall (side wall) 42H First insertion hole 44 Rear member 44U rear upper wall 44B Back lower wall 44R Rear right wall (side wall) 44L Rear left wall (side wall) 44H First insertion hole 50 Weld nuts (fasteners) 52 Bolts (fasteners) 60 Patch material

Claims

1. Front members are provided on both sides in the vehicle width direction at the lower part and front of the vehicle, each extending in the vehicle longitudinal direction and having a closed cross-sectional structure, The rear member has its front end inserted into the inside of the aforementioned front member and extends in the longitudinal direction of the vehicle, and has a closed cross-sectional structure. A fastener for mechanically fastening the front member and the rear member in at least two states: a first state in which the rear member is inserted a large amount into the front member, and a second state in which the insertion amount is small. It has, The aforementioned front member has a plurality of first insertion holes formed at intervals in the vehicle's longitudinal direction. The rear member has second insertion holes formed at positions corresponding to the plurality of first insertion holes in at least the first and second states, In the second state, a patch member is provided in front of the rear member. In the second state, the front member and the rear member are mechanically fastened together by inserting the fastener through the first insertion hole and the second insertion hole. In the second state, the front member and the patch member are mechanically fastened together by inserting the fastener through the insertion hole formed in the patch member and the first insertion hole.

2. The rocker structure according to claim 1, wherein the fastener comprises a weld nut fixed to the inner surface of the rear member and the inner surface of the patch member, and a bolt screwed into the weld nut from the outside of the front member.

Images