• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    vehicle body structure. the present invention relates to a side stirrup (2) configured, in a closed section, from an outer side stirrup element (21) comprising an outer upper wall (21a), an outer lower wall (21b), an outer side wall (21c), an outer top flange (21d) and an outer bottom flange (21e) and from an inner side stirrup member (22) comprising an inner top wall (22a), an inner bottom wall (22b), an inner sidewall (22c), an inner top flange (22d) and an inner bottom flange (22e). at the lower end, a pillar (3) has a joint portion (31) which is retained between and joined to the outer top flange (21d) and the inner top flange (22d), and a first extension part (32) and a second extension part (33) extending from the joint portion (31) in the closed section of the side stirrup (2), and is provided with an extension (41,42) whose top end is joined to the first part of extension (32) and/or to the second extension portion (33) and whose bottom end is retained between and joined to the outer lower flange (21e) and the inner lower flange (22e). through this configuration, it is possible to ensure adequate rigidity through the minimally necessary weight increase, depending on vehicle specifications.
    公开号:BR112016004227B1
    申请号:R112016004227-1
    申请日:2014-08-01
    公开日:2021-08-03
    发明作者:Masahiko Emura
    申请人:Honda Motor Co., Ltd.；
    IPC主号:
    专利说明:

    FIELD OF TECHNIQUE
    [0001] The present invention relates to a vehicle body structure and particularly to a structure of the underbody of the vehicle that includes a joint of a side step and a pillar. TECHNICAL BACKGROUND
    [0002] In recent years, vehicle weight reduction as well as the rigidity of a vehicle body have been required for the general improvement of drivability, livability, fuel efficiency, and the like. Since the required vehicle body rigidity and the strength of the vehicle body structure differ according to vehicle specifications and destinations, numerous adapted variations to vehicle specifications and the like are required.
    [0003] Conventionally, a vehicle body structure in which an extension is arranged in the front-rear direction of the vehicle body to divide the interior of the side step (for example, as disclosed in Patent Literature 1) and a structure of vehicle body in which bulkheads are disposed in a side step cross section to block the closed cross sections (e.g. as disclosed in Patent Literature 2) are known as a means to increase the stiffness of the side step in the vehicle body.
    [0004] In the vehicle body structure disclosed in Patent Literature 1, a lower end portion of a center pillar inner panel 8 is arranged to pass through a side running board cross-section and to overlap a compartment of floor 7 and an interior of sideboard 9, and these three parts are joined together.
    [0005] In this way, the deformation by collapse and the deformation by compression of the lateral stirrup in the vertical direction are suppressed, so that the stiffness and strength of the lateral stirrup are increased.
    [0006] In the vehicle body structure disclosed in Patent Literature 2, a bulkhead 17 is disposed in the cross-section of the side step at the intersection of a side step 16, a center pillar 32 and a cross member 57.
    [0007] Thus, the bulkhead 17 can suppress the deformation and sectional distortion of the sidestep 16 to improve the stiffness and strength of the sidestep. In addition, the bulkhead 17 can efficiently transmit a side impact load from the center pillar 32 and the side stirrup 16 through the bulkhead 17 to the cross member 57 and can suppress the amount of interior space deformation should a side collision. LIST OF QUOTES PATENT LITERATURE
    [0008] Patent Literature 1: Japanese Patent Opened for Public Inspection No. H06-166384 (1994-166384) (See Figure 1.) Patent Literature 2: Japanese Patent Opened for Public Inspection No. 2011-240886 (See Figure two) SUMMARY OF THE INVENTION TECHNIQUE PROBLEM
    [0009] However, in the vehicle body structure disclosed in Patent Literature 1, in order to divide the cross-section of the side stirrup with the center pillar interior, the lower end portion of the integrally formed center pillar interior is joined directly to the side stirrup for reinforcement. Therefore, the vehicle body structure disclosed in Patent Literature 1 cannot be quickly and flexibly adapted to a vehicle specification change.
    [0010] Specifically, in the case where an additional improvement in stiffness is required, according to the specification or destination of the vehicle, or in the case where weight reduction or shedding is required to be given priority higher than the stiffness, it is necessary to change the shape of the center column interior by itself and the preparation of one of a new formation matrix corresponding to the specification and the like. Therefore, the need for a change affects development in a short period of time and causes problems in manufacturing including increased cost in the forming matrix and deterioration of flow.
    [0011] In the vehicle body structure disclosed in Patent Literature 2, the bulkhead 17 is arranged in the cross-section of the side stirrup. Therefore, the lower end of the center pillar interior cannot be arranged to pass through the side stirrup cross section and joined to the side stirrup cross section as disclosed in Patent Literature 1.
    [0012] Specifically, the vehicle body structure disclosed in Patent Literature 2 cannot be adequately adapted to the case where the vehicle body rigidity of the vehicle body structure without a bulkhead is not sufficient, although the specification or the vehicle target does not require vehicle body rigidity as high as the need to add a bulkhead (which can ensure high rigidity). In other words, it is difficult to achieve the necessary rigidity and strength with the minimum increase necessary.
    [0013] The present invention was created in view of the above, and the purpose of the present invention is to provide a vehicle body structure that can ensure, with the minimum necessary weight increase, the appropriate rigidity and strength for a requirement based on a vehicle specification, or a standard, at a destination. SOLUTION TO THE PROBLEM
    [0014] In order to solve the above-mentioned problem, the invention, in accordance with appended claim 1, provides a vehicle body structure that includes a side stirrup that extends on one side of a vehicle body in a front-rear direction and a pillar that has a lower end joined to the lateral stirrup and that extends upwards. The invention according to appended claim 1 is distinguished in that the side stirrup includes a side stirrup exterior and a side stirrup interior; wherein the outside of the side stirrup is formed, to have a hat-like cross-section, by a pair of an outer top wall and an outer bottom wall which face each other, an outer side wall which extends to the outer ends, in a vehicle width direction, of the outer top wall and the outer bottom wall, an outer top flange that extends upwards from an inner end, in the vehicle width direction, of the outer top wall and an outer bottom flange extending downwardly from an inner end, in the vehicle width direction, of the outer bottom wall; the interior of the sideboard is formed, to have a hat-like cross-section, by a pair of an interior top wall and an interior bottom wall that face each other, an interior side wall that extends to the inner ends, in the vehicle width direction, of the inner top wall and the inner bottom wall, an inner top flange extending upwards from an outer end, in the vehicle width direction, of the inner top wall and an inner bottom flange extending downwardly from an outer end, in the vehicle width direction, of the inner bottom wall, wherein the outer top flange and inner top flange are joined and the outer bottom flange and the flange inner bottom are joined to form a closed cross-section; and the pillar includes a joined portion located at a lower end portion of the column and sandwiched and joined between the upper outer flange and the upper inner flange, a first extended portion and a second extended portion which extends in a cross section. closed of the side stirrup from the joined portion and are arranged at a predetermined distance from each other in the front-rear direction, and an extension having an upper end joined to at least one of the first extended portion and the second extended portion, and a lower end sandwiched and joined between the lower outer flange and the lower inner flange.
    [0015] In the vehicle body structure according to the present invention, the joined portion, which is sandwiched and joined between the upper outer flange and the upper inner flange, is disposed at a lower end portion of the pillar. Therefore, the predetermined stiffness can be guaranteed by joining the pillar and the upper portion of the lateral stirrup.
    [0016] Furthermore, since the first extended portion and the second extended portion extending in the closed cross section of the side stirrup from the attached portion are arranged, the extension can be attached to at least one of the first extended portion and the second portion extended. Therefore, when the lower end of the extension is joined to the lower portion of the lateral stirrup, the collapsing deformation of the lateral stirrup cross-section in the vertical direction and the compression deformation of the lateral stirrup in the lateral direction can be suppressed, so that a stronger rigidity can be guaranteed.
    [0017] As explained above, in the vehicle body structure according to the present invention, the provision of at least two extended proportions enables various types of stiffness models that are flexibly adapted to requirements of vehicle specifications and standards in the destinations. For example, it is possible, when necessary, a stiffness model in which the extension is joined to one of the first and second extended portions and is not joined to the other of the first and second extended portions, or a stiffness model that realizes a greater strength in which one or more strains are joined to both the first extended portion and the second extended portion. When necessary, the increase in the number of extended portions allows for a more preferential stiffness with the minimum necessary weight increase.
    [0018] Thereby, the vehicle body structure according to the present invention can guarantee, with the minimum necessary weight increase, the vehicle body performance, such as appropriate rigidity and strength.
    [0019] Furthermore, in the vehicle body structure, the extension is formed separately from the pillar interior. Therefore, various types of stiffness models are possible by changing the number and shapes of joined extensions without changing the shape of the pillar interior. Additionally, in the case where the spans of the lower edges of the first extended portion and the second extended portion are equalized or normalized, the shape of the extension can be standardized. Therefore, equalizing or normalizing the extended portions can desirably contribute to development in a short period, can increase productivity and flow, and reduce the cost of labor hours.
    The invention according to appended claim 2 is the vehicle body structure described in appended claim 1 which is further distinguished by the upper end of the extension which is joined to the first extended portion and the second extended portion.
    [0021] In the vehicle body structure according to the present invention, the extension is joined to both the first extended portion and the second extended portion. Therefore, the rigidity and strength of the vehicle body can be improved compared to the case where the extension is joined to one of the first and second extended portions.
    [0022] Thus, the vehicle body structure according to the present invention enables rigidity models that are flexibly adapted to the requirements of vehicle specifications and destination standards and ensures proper rigidity and strength with minimum weight gain needed.
    [0023] The invention according to appended claim 3 is the vehicle body structure described in appended claim 1 which is further distinguished by the extension which is joined to one of the first extended portion and the second extended portion and is not joined to the other of the first extended portion and the second extended portion, and the shield is arranged below the pillar to block the closed cross-section; and the bulkhead is arranged to be joined to the outside of the side step and extends inwardly close to the inside of the side step in the width direction of the vehicle.
    [0024] In the vehicle body structure according to the present invention, the extension is joined to one of the extended portions and is not joined to the other of the extended portions, and the bulkhead is disposed below the pillar. Therefore, the rigidity and load transmission characteristic of the vehicle body in the vehicle's width direction can be improved compared to the case where the extension is joined to both the first extended portion and the second extended portion.
    [0025] Furthermore, since the outside of the bulkhead is joined to the outside of the sideboard, when a collision load is inserted, the load can be quickly transmitted from the bulkhead to the inside of the sideboard, and from the inside of the sideboard to a vehicle body floor or to a cross member. Therefore, collision performance can be improved.
    [0026] On the other hand, since the interior of the bulkhead is arranged to be close to the interior of the side step, the transmission of vehicle body vibrations from the interior of the side step to the vehicle body floor can be avoided during vehicle operation. Therefore, habitability and operating stability can be improved.
    [0027] As explained above, the vehicle body structure according to the present invention enables rigidity models that are flexibly adapted to the requirements of vehicle specifications and standards at destinations, ensures proper rigidity and strength with minimal increase of necessary weight and allows for an overall improvement in drivability, habitability, fuel efficiency and collision performance, as well as a load transmission performance.
    [0028] The invention according to appended claim 4 is the vehicle body structure described in appended claim 3 which is further distinguished by the bulkhead which is arranged in a position below the other between the first extended portion and the second extended portion , and which overlaps them, and is formed, to have a U-shaped cross-section, by a pair of a bulky front wall and a bulky rear wall facing each other and a bulky side wall that extends for the inner ends of the bulky front wall and the bulky rear wall; the bulky front wall includes a bulky front wall lower portion that extends to the bulky side wall, a forward flexed portion that extends upward from the bulky front wall lower portion and that is flexed forward, and a bulky front wall top portion that extends upwardly from the forwardly flexed portion; wherein the bulky rear wall includes a bulky rear wall lower portion which extends to the bulky side wall, a rearwardly flexed portion which extends upward from the bulky rear wall lower portion and which is flexed backwards , and a bulky rear wall top portion extending upwardly from the rearwardly flexed portion; and the distance between the upper extending bulky front wall portion and the upper bulky rear wall portion is greater than the distance between the lower bulky front wall portion and the lower bulky back wall portion.
    [0029] In the vehicle body structure according to the present invention, since the bulkhead includes the forward flexed portion and the backward flexed portion, protrusion lines are formed in convex shapes that extend in the width direction of the vehicle . Therefore, the creep resistance against load in the vehicle's wide direction is increased, and collision performance such as that of load transmission performance can be improved.
    [0030] In addition, the distance between the extending bulky front wall upper portion and the bulky rear wall lower portion may be arranged to be greater than the distance between the bulky front wall upper portion and the lower portion of bulky rear wall (ie, the expansion in the front-rear direction of the vehicle body). Therefore, the arrangement above the upper portion of the bulky front wall that extends and the upper portion of the bulky rear wall can contribute to the reduction in size of the bulkhead while avoiding interference with the second extended portion close to which the bulkhead is willing.
    The invention according to appended claim 5 is the vehicle body structure described in appended claim 3 which is further distinguished by the bulkhead which includes an upper joined portion which is joined to the outer top wall, a joined portion bottom that is joined to the outer bottom wall and a side joined portion that is joined to the outer side wall.
    [0032] In the vehicle body structure according to the present invention, the bulkhead is joined to the outside of the sideboard in the three positions of the upper joined portion, the lower joined portion and the lateral joined portion. Therefore, the cross-cut deformation of the side stirrup in the vertical and lateral directions and the torsional deformation of the cross cut can be suppressed, and the stiffness and cross-sectional strength of the side stirrup can be improved.
    [0033] The invention according to appended claim 6 is the vehicle body structure described in appended claim 4 which is further distinguished by the bulkhead which includes a bead extending into the bulky sidewall along the front-rear direction of the vehicle body.
    [0034] Due to the provision of the bead in the bulky sidewall, the flow resistance against deformation by compression or tension of the bulky sidewall in the front-rear direction and the bending strength of the bulky sidewall in the width direction of the vehicle increased. Therefore, it is possible to suppress the movement in the vehicle width direction of the inner ends, in the vehicle width direction, the bulky front wall and the bulky rear wall, where the bulky front wall and bulky rear wall continue to the wall bulky side, and prevent deformation by tilting the bulky front wall and bulky rear wall.
    [0035] In this way, a load inserted at the time of a side collision can be transmitted, with high reliability, through the bulky front wall and the bulky rear wall to the interior of the side stirrup and the floor of the vehicle body, so that collision performance such as load transmission performance can be improved.
    [0036] The invention according to appended claim 7 is the vehicle body structure described in appended claim 3 which is further distinguished by the bulkhead which is arranged to overlap a cross member in a wide steering position of the vehicle, wherein the cross member supports a vehicle body floor and extends in the width direction of the vehicle.
    [0037] In the vehicle body structure according to the present invention, due to the fact that the bulkhead is arranged to overlap the cross member in a vehicle width steering position, a load inserted into one face The side of the vehicle body can be transmitted, with high reliability, from the outside of the side step through the bulkhead and from the inside of the side step to the cross member, and can be additionally transmitted through the cross member to the other side face of the vehicle body in a dispersed manner. Therefore, collision performance such as load transmission performance and load dispersion performance can be further improved. ADVANTAGEOUS EFFECT OF THE INVENTION
    [0038] A vehicle body structure according to the present invention can ensure, with minimum necessary weight gain, appropriate rigidity and strength for a requirement based on a vehicle specification, or a standard, at a destination. BRIEF DESCRIPTION OF THE DRAWINGS
    [0039] Figure 1 is an exploded perspective view illustrating an appearance, around a side running board, of a vehicle body structure according to a first embodiment of the present invention.
    [0040] Figure 2 is a partially enlarged, partially cut-away perspective view illustrating an extension in the vehicle body structure according to the first embodiment of the present invention, in which the side stirrup is cut into a portion of edge of a central pillar illustrated in Figure 1 for illustration.
    [0041] Figures 3A and 3B illustrate the extension according to the first embodiment of the present invention, in which Figure 3A is a partially enlarged view, and Figure 3B is a cross-sectional view of the side stirrup.
    [0042] Figures 4A and 4B are front views presented to explain a situation of an extension joint according to the first embodiment of the present invention, in which Figure 4A illustrates extended portions of a pillar interior to which the extensions come be joined, and Figure 4B is a view, viewed from the outside, of a situation where the extensions are joined to the extended portions and an exterior of the side stirrup is removed for illustration.
    [0043] Figures 5A and 5B are front views presented to explain a situation of a joint of the extensions according to the first embodiment of the present invention, in which Figure 5A is an interior view, in which an interior of the side stirrup is removed for illustration, and Figure 5B illustrates a variation in which an extension is joined only to a first extended portion.
    [0044] Figure 6 is a perspective view illustrating a situation of attaching a bulkhead to a vehicle body structure according to a second embodiment of the present invention, specifically, a left rear view of a lower portion of the pillar interior in which the side stirrup exterior is removed for illustration.
    [0045] Figures 7A and 7B illustrate a situation of attachment of the bulkhead to the vehicle body structure according to the second embodiment of the present invention, in which Figure 7A is a perspective view of the interior front side in which an interior of Side stirrup is removed for illustration, and Figure 7B is a front view.
    [0046] Figures 8A and 8B illustrate the bulkhead in the vehicle body structure according to the second embodiment of the present invention, wherein Figure 8A is a cross-sectional view of a side stirrup, which is shown to explain a joint situation, and Figure 8B is a perspective view illustrating an external appearance of the bulkhead structure and a bead.
    [0047] Figures 9A and 9B explain a situation of an extension joint in variations according to the present invention, in which Figure 9A illustrates a variation in which two extended portions are arranged contiguously, and Figure 9B illustrates a variation in which an extension is joined to the two extended portions. DESCRIPTION OF MODALITIES
    [0048] In the following, a vehicle body structure 1 in a vehicle (not shown) according to the first embodiment of the present invention is explained in detail with reference to Figures 1 to 5, as required. Although the vehicle type is not specifically limited, for convenience of explanation, the front-rear steering, the up and down steering, and the vehicle width direction (lateral direction) are named based on the vehicle direction, the The inner side of the vehicle is called the inner side, and the outer side of the vehicle is called the outer side.
    [0049] Figure 1 is a perspective view, viewed from the outside front, on the left side of the vehicle, and illustrates the vehicle body structure extending from a front pillar 11 to a rear wheel box 12.
    [0050] As illustrated in Figure 1, the vehicle body structure 1 includes a side stirrup 2, an interior center pillar 3, one or more extensions 4 and a cross member 9. The side stirrup 2, which is disposed on each side of the vehicle, extends in the front-rear direction. The central pillar interior 3 is an upwardly extending pillar whose lower end portion is joined to the side stirrup 2. One or more extensions 4 (as shown in Figure 2) are joined to the lower end of the central pillar interior 3 The cross member 9 is joined to the side stirrup 2 and extends in the width direction of the vehicle.
    [0051] Although the following explanations are given for the left side of the vehicle, the vehicle body structure includes a pair of side stirrups on the right and left sides, and the right side of the vehicle may also have a similar structure. In addition, although the central pillar (the interior of central pillar 3) is taken as an example of the pillar, the front pillar 11 or a rear pillar (not shown) can also have a similar structure. Hereinafter, the interior of central pillar is abbreviated as the interior of pillar 3. In addition, a pillar stiffener 30 is joined to the interior of pillar 3 for reinforcement, and the outer panels (not shown) such as panels on the side of the body they are joined. However, since the present invention is not limited to pillar stiffener 30 and outer panels, pillar stiffener 30 and outer panels are not explained in detail.
    [0052] As illustrated in Figure 2, the side step 2 includes an exterior of the side step 21 and an interior of the side step 22. The outside of the side step 21 is arranged to protrude outward a large distance, and the inside of the side stirrup 22 is arranged so as to project inwardly in a small distance. The side stirrup exterior 21 and the side stirrup interior 22 are joined to form a closed cross-section by means for welding such as spot welding on the flange portions which are arranged in upper portions and lower portions of the outside of the side step 21 and of the inside of the side step 22.
    [0053] As shown in Figures 3A and 3B, the exterior of the side stirrup 21 includes a pair of an outer top wall 21a and an outer bottom wall 21b, an outer side wall 21c, an outer top flange 21d and an outer bottom flange 21e. The outer top wall 21a and the outer bottom wall 21b face each other. The outer side wall 21c extends to the outer end, in the vehicle width direction, of the outer top wall 21a, and also to the outer end, in the vehicle width direction, of the outer bottom wall 21b. The outer top flange 21d extends upwards from the inner end, in the vehicle width direction, of the outer top wall 21a. The outer lower flange 21e extends downwardly from the inner end, in the vehicle width direction, of the outer lower wall 21b.
    [0054] The outside of the side stirrup 21 is formed to have a cross-section with a shape similar to a hat and to be arranged in such an orientation that the upper outer flange 21d and the lower outer flange 21e are located on the inside and the outer side wall 21c projects outwards.
    [0055] The interior side stirrup 22 includes a pair of an interior top wall 22a and an interior bottom wall 22b, an interior side wall 22c, an interior top flange 22d and an interior bottom flange 22e. The inner top wall 22a and the inner bottom wall 22b face each other. The interior side wall 22c extends to the interior end, in the vehicle width direction, of the interior top wall 22a and also to the interior end, in the vehicle width direction, of the interior bottom walls 22b. The inner top flange 22d extends upward from the outer end, in the vehicle width direction, of the inner top wall 22a. The inner lower flange 22e extends downwardly from the outer end, in the vehicle width direction, of the inner lower walls 22b.
    [0056] The interior of the side stirrup 22 is formed to have a hat-like cross-section and to be arranged in such an orientation that the inner upper flange 22d and the inner lower flange 22e are located on the interior and the inner sidewall 22c projects inwardly.
    [0057] In the lower portion of the side stirrup 2, the interior of pillar 3 is inserted between the upper outer flange 21d of the exterior of the side stirrup 21 and the upper inner flange 22d of the interior of the side stirrup 22 and the exterior of the side stirrup 21 , the pillar interior 3 and the side stirrup interior 22 are integrally joined.
    [0058] In the lower portion of the side stirrup 2, the one or more extensions 4 are inserted between the lower outer flange 21e of the exterior of the side stirrup 21 and the lower inner flange 22e of the interior of the side stirrup 22 and the exterior of the side stirrup 21, the one or more extensions 4 and the interior of the side stirrup 22 are integrally joined.
    [0059] As shown in Figure 2, the interior of pillar 3 is formed to have such a shape that a lower end portion, which is to be joined to the side stirrup 2, is enlarged and the width of the interior of pillar 3 is tapered upward (as illustrated in Figures 4A and 4B). The skirt portion at the enlarged lower end portion is shaped to be more enlarged on the front side than on the rear side (as illustrated in Figure 4A).
    [0060] As shown in Figures 3 and 4, the interior of pillar 3 includes a joined portion 31 and first and second extended portions 32 and 33. The joined portion 31 is sandwiched between the upper outer flange 21d and the upper inner flange 22d , and joined (as illustrated in Figure 4B). The first and second extending portions 32 and 33 are arranged to extend within the closed cross-section of the side stirrup 2 from the joined portion 31.
    [0061] The first extended portion 32 is disposed on the front side of the lower end portion of the column interior 3. In order to increase rigidity, the boss portions 32a, which project outwardly and have convex shapes with lines of protrusions along the vertical direction are formed on the first extended portion 32. The boss portions 32a are formed so as to be ordered in parallel (e.g., in two lines) in the front-rear direction across the entire width. of the first extended portion 32.
    [0062] The second extended portion 33 is disposed at an approximately intermediate portion of the lower end portion of the column interior 3 at a predetermined distance from the first extended portion 32 in the front-rear direction. Since the second extended portion 33 has the same shape as the first extended portion 32, the second extended portion 33 is not explained in detail.
    [0063] Furthermore, although the first and second extended portions 32 and 33 are arranged in two positions, alternatively, it is possible to arrange three or more extended portions as needed in consideration of the width and the like of the column interior 3. In addition moreover, the first and second extended portions 32 and 33 can be disposed contiguously.
    [0064] One or more extensions 4 include first and second extensions 41 and 42. The first extension 41 is joined to a lower end portion of the first extended portion 32, and the second extension 42 is joined to a lower end portion of the second extended portion 33. The lengths and widths of the first and second extensions 41 and 2 are defined to have predetermined shapes and sizes that are identical to the shapes and sizes of the first and second extended portions 32 and 33.
    [0065] The consolidation of the shape and size of extensions 4 into a predetermined pattern can contribute, in a desired way, to short-term development, increase productivity and flow, and reduce cost.
    [0066] As illustrated in Figures 3A and 3B, the first extension 41 has the shape of a rectangular plate. The upper edge portion of the first span 41 is joined to the interior of the first extended portion 32 (as shown in Figure 5A), and the lower edge portion of the first span 41 is joined between the lower outer flange 21e and the lower flange interior 22e.
    [0067] The first extension 41 is arranged so as to divide the closed cross-section formed in the side stirrup 2, along the vertical direction, and performs the functions of suppressing the collapsing deformation of the side stirrup 2 in the vertical direction and the deformation by pressing the side step 2 in the vehicle width direction and increasing the section stiffness and strength of the side step 2.
    [0068] In order to further increase stiffness, the microspheres 41a, which protrude inward and have convex shapes with protrusion lines along the vertical direction, are formed in the first extension 41 (as illustrated in Figure 3B). The microspheres 41a are formed so as to be ordered in parallel (e.g., in three rows) in the front-rear direction along the entire width of the first extended portion 32.
    [0069] The upper edge portion of the second extension 42 is joined to the interior of the second extension portion 33, and the lower edge portion of the second extension 42 is joined between the lower outer flange 21e and the lower inner flange 22e. Since the second extension 42 has the same structure as the first extension 41, the second extension 42 is not explained in detail.
    [0070] In the vehicle body structure 1, according to the first embodiment, the first extension 41 and the second extension 42 are respectively joined to the first extension 32 and the second extension 33. Alternatively, as shown in Figure 5B, the first extension 41 and second extension 42 can be joined to only one of first extended portion 32 and second extended portion 33 according to the requirement of the vehicle specification or with the standard at destination.
    [0071] In the vehicle body structure 1 having the structure as mentioned above, the provision of the at least two extended portions 32 and 33 enables various types of stiffness models that can be flexibly adapted to the requirements of specifications and standards of vehicles at destinations. For example, when necessary, the vehicle body structure 1 allows for a rigidity model in which an extension 4 is joined to one of the first extended portion 32 and the second extended portion 33 and there is no extension disposed for another of the first extended portion 32 and second extended portion 33, or a stiffness pattern embodying increased strength wherein one or more extensions are joined to both the first extended portion 32 and the second extended portion 33. When necessary, additional stiffness patterns preferred, with the minimum necessary increase in weight, are possible by increasing the number of extended portions 32 and 33.
    [0072] Furthermore, in the vehicle body structure 1, the extensions 4 are formed separate from the interior of pillar 3. Therefore, various types of rigidity models are possible through the number and shapes of extensions 4 joined without changing the shape of the column interior 3. Additionally, in the case where the spans of the lower edges of the first extended portion 32 and the second extended portion 33 are equalized or normalized, the shapes of the extensions 4 can be standardized. Therefore, the vehicle body structure 1 can desirably contribute to short-term development, increase productivity and flow, and reduce the cost of labor hours.
    [0073] In the following, a vehicle body structure 10 according to the second embodiment of the present invention is explained with reference to Figures 6 to 8, Figure 6 is a left rear perspective view of a lower portion of a pillar interior, where a side stirrup exterior is removed for illustration. Figure 7A is a perspective view, from the inside front side, where a side stirrup interior is removed for illustration. Figure 7B is a front view.
    [0074] As illustrated in Figure 6, the vehicle body structure 10, according to the second embodiment includes, the extension 41 and a bulkhead 5. The extension 41 is joined to the first extended portion 32 as one of the first extended portion 32 and the second extended portion 33. The bulkhead 5 is disposed in a position below the second extended portion 33, and which overlaps the same, as the other of the first extended portion 32 and the second extended portion 33.
    [0075] The vehicle body structure 10 is different from the vehicle body structure 1, according to the first embodiment, mainly in that the bulkhead 5 is arranged. Since the vehicle body structure 10 is similar to the vehicle body structure 1, with the exception of the bulkhead 5 arrangement, the same structural elements as the first embodiment respectively bear the same reference numerals as the first modality, and explanations of the same reference numerals are not repeated.
    The bulkhead 5 comprises a bulky front wall 51, a bulky rear wall 52 and a bulky side wall 53 so as to have a U-shaped cross section and reduced weight. The bulky front wall 51 and bulky rear wall 52 form a pair, and face each other in the front-rear direction. The bulky sidewall 53 extends to the bulky front wall interior end portion 51 and to the bulky rear wall interior end portion 52.
    [0077] As shown in Figure 8A, the shield 5 is arranged to block the closed cross-section in the side stirrup 2 and retained by being joined to the exterior of the side stirrup 21. The shield 5 is arranged so that the wall The bulky sidewall 53 is close to the interior of the sidewall 22, and there is a gap between the interior of the sidewall 22 and the bulky sidewall 53.
    [0078] The bulkhead 5 is joined to the exterior of the side stirrup 21 by means of welding such as three-position spot welding of an upper joined portion 5A, a lower joined portion 5B and a lateral joined portion 5C. Specifically, the bulkhead 5 is joined to the outer top wall 21a at the upper joined portion 5A, the outer bottom wall 21b at the bottom joined portion 5B, and the outer side wall 21c at the lateral joined portion 5C.
    [0079] As illustrated in Figure 8B, the bulky front wall 51 includes a bulky front wall top portion 51a, a forward-bent portion 51b, and a bulky front wall top portion extending 51c. The bulky front wall top portion 51a extends to the bulky side wall 53. The forwardly flexed portion 51b extends upward from the bulky front wall top portion 51a and is flexed forwardly. The upper extending bulky front wall portion 51c extends upwardly from the forwardly flexed portion 51b.
    [0080] In the above structure, the bulky front wall 51 has protrusion lines, which extend in the width direction of the vehicle, of convex shapes due to the forward flexed portion 51b. Therefore, the resistance to flow against the load in the vehicle's width direction is increased, and the collision performance such as the collision load transmission performance can be improved.
    [0081] The bulky rear wall 52 includes a bulky rear wall lower portion 52a, a rearwardly flexed portion 52b and a bulky rear wall lower portion 52c. The bulky rear wall lower portion 52a extends to the bulky sidewall 53. The backward flexed portion 52b extends upward from the bulky rear wall lower portion 52a and is flexed backwards. The bulky rear wall lower portion 52c extends upward and from the rearwardly flexed portion 52b.
    The bulky back wall 52 is bilaterally symmetrical with the bulky front wall 51. However, since the bulky back wall 52 has a similar structure to the bulky front wall 51, the bulky back wall 52 structure is not explained in detail.
    [0083] Furthermore, due to the provision of the forward flexed portion 51b and the backward flexed portion 52b, the distance between the bulky front wall upper portion extending 51c and the bulky rear wall upper portion 52c is greater what distance between the bulky front wall lower portion 51a and the bulky rear wall lower portion 52a (i.e., the amplitude in the front-rear direction of the vehicle body).
    [0084] Therefore, the forward flexed portion 51b and the backward flexed portion 52b can contribute to the reduction in size of bulkhead 5 while avoiding interference of bulkhead 5 with the second extended portion 33, below which the bulkhead 5 is arranged.
    [0085] In order to further increase rigidity, the bulky sidewall 53 includes a bead 53a, which extends along the front-rear direction of the vehicle. Bead 53a protrudes outward and has a convex shape.
    [0086] Due to the provision of the bead 53a on the bulky sidewall 53, the stiffness of the bulky sidewall 53 therefore increases the slope-forming of the bulky front wall 51 and bulky rear wall 52 can be suppressed. Furthermore, since the bulky front wall 51 and bulky rear wall 52 are integrally connected through bulky side wall 53, the torsional stiffness of bulky front wall 51 and bulky rear wall 52 can be increased and deformation of the side stapes 2 can be suppressed.
    [0087] As illustrated in Figure 6 and Figure 8A, the bulkhead 5 is arranged in a vehicle width steering position that overlaps the vehicle width steering position of the cross member 9, wherein the cross member 9 supports vehicle body floor 13 and extends in vehicle width direction.
    [0088] In the above structure, a load inserted into a side face of the vehicle body can be transmitted, with high reliability, from the outside of the side step 21 through the bulkhead 5 and the inside of the side step 22 to the cross member 9, and can be additionally transmitted through the cross member to the other side face of the vehicle body in a dispersed manner. Therefore, collision performance such as load transmission performance and load dispersion performance can be further improved.
    [0089] In the following, the operations of the vehicle body structure 10, according to the second embodiment of the present invention having the above structure, are explained with reference mainly to Figures 8A and 8B.
    [0090] In the vehicle body structure 10, the first extension 41 is joined to the first extended portion 32, the bulkhead 5 is arranged in a position below the second extended portion 33, and which overlaps the same. Therefore, the rigidity and load transmission characteristic in the vehicle's width direction can be improved compared to the case where the extensions 4 are joined to both the first extended portion 32 and the second extended portion 33.
    [0091] Furthermore, due to the fact that the outer side of the bulkhead 5 is united to the outside of the side step 21, the load inserted into the vehicle body in the collision is quickly transmitted through the bulky front wall 51 and the bulky rear wall 52 to the interior of the side step 22, the interior of the side step 9 and the floor of the vehicle body 13 (shown in Figure 8A). Therefore, collision performance such as load transmission performance can be improved.
    [0092] On the other hand, due to the fact that the inner side of the bulkhead 5 is arranged close to the interior of the side stirrup 22 so that there is a gap between the interior of the side stirrup 22 and the bulkhead 5, the transmission of vibrations of the vehicle body from the interior of the sideboard 22 to the floor of the vehicle body 13 can be avoided during vehicle operation. Therefore, habitability and operating stability can be improved. Furthermore, due to the fact that the bulkhead 5 is joined to the outside of the side stirrup 21 and is not bonded to the interior of the side stirrup 22, the mountability of the side stirrup 2, which forms the closed cross-section, can be improved.
    [0093] As explained above, the vehicle body structure 10 according to the second modality of the present invention enables rigidity models that are flexibly adapted to the requirements of vehicle specifications and standards at destinations, ensuring proper rigidity and strength with minimal weight gain required and enables an overall improvement in driveability, livability, fuel efficiency and crash performance, as well as load transmission performance.
    [0094] Although the second embodiment of the present invention is explained as above, the present invention is not limited to the modalities explained, and variations may be incorporated as necessary. For example, although in the second embodiment the first extension 41 is joined to the first extended portion 32 and the shield 5 is disposed in the position below the second extended portion 33, and which overlaps the same, three or more extended portions and two or more bulkheads may be arranged.
    [0095] Furthermore, although in the second embodiment the first extended portion 32 and the second extended portion 33 are separately and distinctly disposed, the first extended portion 32 and the second extended portion 33 may be disposed contiguously and integrally (as illustrated in Figure 9A). Additionally, although in the second embodiment the first extension 41 is joined to the first extended portion 32 of the first extended portion 32 and the second extended portion 33, as illustrated in Figure 5A, it is possible to arrange a single extension 43 so as to be joined to both the first extended portion 32 as well as second extended portion 33.
    [0096] Although in the second mode the bulkhead 5, which has a U-shaped cross section, is arranged in the position below the second extended portion 33, and which overlaps the same, the arrangement of the bulkhead 5 is not limited to the manner of the second modality of. For example, the shape of bulkhead 5 is not limited to a U-shaped cross-section, and bulkhead 5 can be block-like in shape. Otherwise, bulkhead 5 may be arranged in a horizontal position that does not overlap the second extended portion 33. NUMERICAL REFERENCE LIST 1: 10: Vehicle Body Structure 2: Side Step 3: Abutment Interior (Abutment) 4 : Extension 5: Bulkhead 5A: Top Joined Portion 58: Bottom Joined Portion 5C: Side Joined Portion 9: Cross Limb 11: Front Pillar 12: Rear Wheel Box 13: Vehicle Body Floor 21: Side Stirrup Exterior 21a: Wall Exterior Upper Flange 21b: Exterior Lower Wall 21c: Exterior Exterior Wall 21d: Exterior Upper Flange 21e: Exterior Lower Flange 22: Interior Side Step 22a: Interior Upper Wall 22b: Interior Lower Wall 22c: Interior Sidewall 22d: Interior Upper Flange 22e: Inner Lower Flange 30: Abutment Reinforcer 31: Joined Portion 32: First Extended Portion 33: Extended Second Portion 41: Extension 41a: Bead 42: Extension 51: Bulky Front Wall 51a: Lower Front Wall Portion Bulky 51b: Front-Folded Portion 51c: Bulky Front Wall Upper Portion 52: Bulky Rear Wall 52a: Bulky Rear Wall Lower Portion 52b: Backward-Folded Portion 52c: Bulky Rear Wall Upper Portion 53: Bulky Sidewall 53a: Bead
    权利要求:
    Claims (7)
    [0001]
    1. Vehicle body structure includes a side step foot which extends on one side of a vehicle body in a front-rear direction, and a pillar which has a lower end joined to the side step and which extends upward; characterized in that the side stirrup comprises: a side stirrup exterior which is formed, so as to have a hat-like cross-section, by a pair of an outer top wall and an outer lower wall facing each other a side wall exterior that extends to the outer ends, in a width direction of the vehicle, of the outer top wall and the outer bottom wall, an outer top flange that extends upwards from an inner end, in the width direction of the vehicle, the outer top wall, and an outer lower flange extending downwardly from an inner end, in the vehicle width direction, of the outer bottom wall; and a side stirrup interior that is formed, to have a hat-like cross-section, by a pair of an interior top wall and an interior bottom wall that face each other, an interior side wall that extends. for the interior ends, in the vehicle width direction, of the interior top wall and the interior bottom wall, an interior top flange extending upwards from an exterior end, in the vehicle width direction, of the top wall interior, and an inner lower flange extending downwardly from an outer end, in the vehicle width direction, of the inner lower wall; wherein the upper outer flange and the upper inner flange are joined, and the lower outer flange and the lower inner flange are joined to form a closed cross section; the pillar comprises: a joined portion located at a lower end portion of the pillar and sandwiched and joined between the upper outer flange and the upper inner flange; a first extended portion and a second extended portion which extend in the closed cross section of the side stirrup from the joined portion and which are arranged at a predetermined distance from each other in a front-rear direction; and an extension having an upper end joined to at least one of the first extended portion and the second extended portion, and a lower end interposed and joined between the lower outer flange and the lower inner flange.
    [0002]
    Vehicle body structure according to claim 1, characterized in that the upper end of the extension is joined to the first extended portion and the second extended portion.
    [0003]
    A vehicle body structure according to claim 1, characterized in that the extension is joined to one of the first extended portion and the second extended portion and is not joined to another of the first extended portion and the second extended portion , and a shield is arranged below the pillar to block the closed cross section; and the bulkhead is arranged to be joined to the outside of the side step and extends inwardly close to the inside of the side step in the width direction of the vehicle.
    [0004]
    4. Vehicle body structure according to claim 3, characterized in that the bulkhead is arranged in a position below said one between the first extended portion and the second extended portion, and which overlaps the same, and is formed , so as to have a U-shaped cross-section, by a pair of a bulky front wall and a bulky rear wall that face each other and a bulky side wall that extends to the inner ends of the bulky front wall and the bulky back wall; the bulky front wall includes a bulky front wall upper portion that extends to the bulky side wall, a forward flexed portion that extends upward from the bulky front wall lower portion and that is flexed forward, and an upper portion of voluminous front wall that extends upwards from the flexed portion forward; the bulky rear wall includes a bulky rear wall lower portion that extends to the bulky side wall, a rearwardly flexed portion that extends upward from the bulky rear wall lower portion and that is flexed backwards, and a rearwardly flexed portion; bulky rear wall extending upward from the backward flexed portion; and a distance between the bulky front wall upper portion and the bulky rear wall upper portion is greater than a distance between the bulky front wall lower portion and the bulky rear wall lower portion.
    [0005]
    A vehicle body structure according to claim 3, characterized in that the bulkhead includes an upper joined portion that is joined to the outer top wall, a lower joined portion that is joined to the outer bottom wall, and a side joined portion. which is attached to the outer side wall.
    [0006]
    Vehicle body structure according to claim 4, characterized in that the bulkhead includes a bead which extends on the bulky side wall along the front-rear direction of the vehicle body.
    [0007]
    A vehicle body structure according to claim 3, characterized in that the bulkhead is arranged to be superimposed on a cross member in a vehicle-width steering position, wherein the cross member supports a body floor of vehicle and extends in the width direction of the vehicle.
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    同族专利:
    公开号 | 公开日
    CN105531180A|2016-04-27|
    JP6054536B2|2016-12-27|
    MX369637B|2019-11-13|
    EP3042832A4|2017-05-10|
    US20160194034A1|2016-07-07|
    CN105531180B|2017-10-13|
    EP3042832A1|2016-07-13|
    EP3042832B1|2019-07-03|
    WO2015033714A1|2015-03-12|
    US9809258B2|2017-11-07|
    JPWO2015033714A1|2017-03-02|
    BR112016004227A2|2017-08-01|
    MX2016002802A|2016-10-28|
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    法律状态:
    2020-05-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 01/08/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2013-182379|2013-09-03|
    JP2013182379|2013-09-03|
    PCT/JP2014/070360|WO2015033714A1|2013-09-03|2014-08-01|Vehicle body structure|
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