JP2018069849A - Vehicular structural member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit or suppress expansional deformation of an outer member so as to inhibit or suppress a sectional collapse, and thus improve a collision load resistant property.SOLUTION: A center pillar member 18 includes an outer member 28 and inner member 30 which are opposed to each other. The sectional shape of the outer member 28 is mountainous. Both end regions 28CL and 28CR of the mountainous outer member 28 are inserted into concave regions 40L and 40R formed in the inner member 30, and joined Y1 to them through welding 36. Thus, expansional deformation of the mountainous outer member 28 due to a collision load F is inhibited or suppressed.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a vehicle structural member. In particular, the present invention relates to a pillar member including an outer member and an inner member as structural members of an automobile body.

  There is a center pillar member as a structural member of an automobile body. The center pillar member is a long-shaped structural member disposed as a vertical column at the center position on the side surface of the automobile. The center pillar member includes an outer member and an inner member, and both members are closed and joined to a cross-sectional shape by welding or the like, and the cross-sectional shape or the like functions as a strength member of the automobile in a side collision.

  8 and 9 show a cross-sectional configuration of a conventional center pillar member (see Patent Document 1 below). The center pillar member 118 shown in FIG. 8 includes an outer member 128 (referred to as a pillar outer) disposed at a vehicle outer side position and an inner member 130 (referred to as a pillar inner) disposed at a vehicle inner position. And). The outer member 128 has a hat-shaped cross-sectional shape that is deep outward (upward in FIG. 8), and the inner member 130 has a hat-shaped cross-sectional shape that is shallow inward, and is welded 138 at both flange portions 128D and 130D. Yes. As a result, a larger cross-sectional shape is ensured than in the case of the conventional general configuration, and the load characteristics are improved with respect to the collision (side collision) load F against the outer member 128.

  However, the welded joint 138 between the outer member 128 and the inner member 130 shown in FIG. 8 is performed by the flange portions 128D and 130D disposed in a direction orthogonal to the direction in which the collision load F acts. For this reason, due to the collision load F acting on the outer member 128, an acting force F that breaks the weld joint 138 in the peeling direction acts on the weld joint 138 locations of the flange portions 128D and 130D. Since the welded joint 138 is generally weak to the peeling action, even if it is not a large impact load F due to a slight collision, it may break. If it breaks, the above-mentioned large cross-sectional shape formed by the outer member 128 and the inner member 130 may collapse, thereby impairing the load resistance characteristics against a collision load.

  The center pillar member 218 shown in FIG. 9 has a hat-shaped cross-sectional shape in which both the outer member 228 and the inner member 230 face outward (upward in FIG. 9), and the vertical wall portions 218B and 230B of both are fitted. It is configured together. Then, the vertical wall portions 218B and 230B of both are welded and joined 238 so that the collision load F acting on the outer member 228 acts as an acting force in the shearing direction on the welded joint 238. Thereby, compared with the effect | action of the peeling direction in the case of the structure shown in FIG. 8, it becomes a structure advantageous with respect to the fracture | rupture of a welding joint.

Japanese Patent Laid-Open No. 2006-94063

  However, in any configuration of the center pillar members 118 and 218 shown in FIGS. 8 and 9 described above, the following phenomenon occurs when the weld joints 138 and 238 are broken. That is, the outer member 128, 228 is deformed in the expansion direction by the collision load F acting on the outer member 128, 228, and the cross-sectional shape formed by the outer member 128, 228 and the inner member 130, 230 is broken. As a result, sufficient impact resistance load performance may not be obtained.

  According to the configuration of the center pillar member 218 shown in FIG. 9, the inner member 230 is fitted into the opening of the outer member 228 to form a cross-sectional shape, and thus the cross-sectional area of the cross-sectional shape is narrow. Become. For this reason, sufficient load bearing characteristics may not be obtained.

  Thus, the present invention has been devised in view of the above-described points, and the problem to be solved by the present invention is to prevent cross-sectional collapse by preventing or suppressing expansion deformation of the outer member. It is to suppress and improve the impact resistance characteristics.

  In order to solve the above problems, the present invention takes the following means.

  According to a first aspect of the present invention, a vehicle structural member includes an outer member that is relatively disposed on the outer side of the vehicle, and an inner member that is relatively disposed on the inner side of the vehicle. And the inner member is a long member disposed facing each other, and the outer member has a mountain shape in a direction perpendicular to the long direction, and both end portions of the mountain shaped outer member Are joined to the inner member at a distance from each other to form a closed cross-sectional shape. And the joining structure of the both ends part of the said outer member and an inner member is the wall part which blocks or suppresses the effect | action of the expansion direction of the both ends part of the said mountain-shaped outer member facing the both ends part of the said outer member. A vehicle formed by joining an abutting surface that is formed on an inner member and prevents or suppresses the action in the expansion direction at a wall portion of the inner member and both end portion surface surfaces of the outer member facing the corresponding contacting surface Structural member.

  According to the first aspect of the present invention, even if an acting force in the expansion direction is generated at both ends of the outer member due to a collision load or the like, the expansion action of both ends of the outer member is caused by the wall portion set on the inner member. Blocked or suppressed. As a result, the collapse of the cross-sectional shape formed by the outer member and the inner member is prevented or suppressed, and the impact load resistance can be improved.

In particular, according to the first aspect of the present invention, even if the joint portion between the both end portions of the outer member and the inner member is broken, the expansion action is prevented or suppressed by the wall portions set on the inner member at both end portions of the outer member. The As a result, the cross-sectional deformation is prevented or suppressed even after the joint portion is broken.

  The structural member for a vehicle according to a second aspect of the present invention is the above-described first aspect, wherein the inner member has a concave width at a position where both end portions of the outer member are joined 1 This is a structural member for a vehicle in which a plurality of concave portions are formed, and both inner side surfaces of the single concave portion are the wall portions and are joined to both end portions of the outer member.

  According to the second aspect of the invention, the inner surfaces of one recess formed in the inner member serve as wall portions with respect to both end portions of the outer member. As a result, an acting force in the shearing direction acts on the wall portion where the inner member and the outer member are joined by the collision load. For this reason, compared with the case where the acting force in the peeling direction is applied, the fracture strength at the joint portion is strong, and it is possible to effectively prevent or suppress the cross-sectional deformation of the cross-sectional shape formed by the inner member and the outer member.

  According to the second aspect of the present invention, the single recess formed in the inner member can form a larger cross-sectional area of the closed cross-sectional shape formed by the inner member and the outer member than in the conventional structure. is there. The larger the cross-sectional area of the closed cross-sectional shape, the more the impact load performance can be improved.

  The structural member for a vehicle according to a third aspect of the present invention is the first aspect described above, wherein a joining configuration of the both end portions of the outer member and the inner member is inserted into one of the outer member and the inner member. A recessed portion where the insertion portion can be inserted is formed on the other side, and the portion that becomes the wall portion of the inner member and both end portions of the outer member are joined to each other It is a structural member for vehicles.

  According to the said 3rd invention, it joins for every both-ends part of an outer member by the combination of a recessed part position and an insertion part. For this reason, in the state where the insertion site is inserted into the recessed portion, the movement is restricted on the inner surfaces on both sides of the recessed portion. Thereby, the deformation of the outer member can be suppressed as much as possible, and the cross-section collapse can be prevented or suppressed.

  In the third invention as well, as in the case of the second invention, an acting force in the shearing direction acts on the joint portion serving as the wall portion due to the collision load. For this reason, compared with the case where the acting force in the peeling direction is applied, the fracture strength at the joint portion is strong, and it is possible to effectively prevent or suppress the cross-sectional deformation of the cross-sectional shape formed by the inner member and the outer member.

  The structural member for a vehicle according to a fourth aspect of the present invention is the third aspect described above, wherein the concave portion is formed at a position where both end portions of the outer member are joined to the inner member, and the outer member is formed. It is the structural member for vehicles which formed the both ends site | parts as said insertion site | part.

  According to the fourth aspect of the invention, it is a practical configuration and can be easily manufactured.

  The structural member for a vehicle according to a fifth aspect of the present invention is any one of the first to fourth aspects described above, wherein a joining configuration of the both end portions of the outer member and the inner member is as follows. It is a structural member for vehicles joined in the state where the part tip of the other member touches the bottom of the concave portion formed on one member side.

  According to the fifth aspect of the invention, the joining configuration between the both end portions of the outer member and the inner member is a so-called bottom contact. A collision load acting on the outer member can be received by this bottom contact, and a load of bonding strength in welding or the like can be reduced.

  The vehicle structural member according to a sixth aspect of the present invention is the above-described fourth aspect or fifth aspect, wherein the recessed portion formed in the inner member has a stepped shape in which the outside is higher than the inside. It is the structural member for vehicles currently welded and joined by the high location of the outer side.

  According to the sixth aspect of the invention, by making the inner side of the recess-like shape formed in the inner member lower than the outer side, the cross-sectional area of the closed cross-sectional shape formed by the inner member can be increased. As a result, the collision load can be increased.

  Moreover, according to the said 6th invention, welding joining is performed in the high location of the outer side of the said level | step difference by making a recessed part shape into the level | step difference shape which made the outside higher than the inner side. Since the welding joint location of the step is usually welding of two plate materials, welding can be easily performed.

  A structural member for a vehicle according to a seventh aspect of the present invention is the invention according to any one of the first to sixth aspects, wherein the outer member is a design outer plate that covers the outer member. The outer plate is joined to the inner member in a vehicle structural member that is located at a position different from the joining position of the outer member and the inner member.

  According to the seventh aspect, the joining position with the inner member in the case of disposing the design outer plate that covers the outer member is different from the joining position between the outer member and the inner member. Thereby, since joining usually joins two plate members, it can join easily.

  The vehicle structural member according to an eighth aspect of the present invention is the vehicle structural member according to any one of the first to sixth aspects of the present invention, wherein the vehicle structural member is a pillar reinforcement of an automobile. is there.

  According to the eighth aspect, by applying the above-described structural member for a vehicle to pillar reinforcement of an automobile, it is possible to exert an effect on a side collision against the automobile.

  According to the present invention of the above-described means, by preventing or suppressing the expansion deformation of the outer member, it is possible to prevent or suppress the collapse of the cross section and to improve the collision load resistance performance.

It is the schematic which shows the vehicle body structure of the pillar member of a motor vehicle as an example of the structural member for vehicles which concerns on this invention. It is the front view which looked at the center pillar member in FIG. 1 from the vehicle inner side. It is a perspective view which decomposes | disassembles and shows the outer member and inner member which comprise a center pillar member. It is a schematic diagram which shows 1st Embodiment of the IV-IV sectional view of FIG. FIG. 5 is a schematic diagram showing a second embodiment corresponding to FIG. 4. It is a schematic diagram which shows the cross-sectional collapse state at the time of the collision load in 2nd Embodiment acting. It is a schematic diagram which shows 3rd Embodiment corresponding to FIG.4 and FIG.5. It is a figure which shows the cross-sectional structure of one conventional center pillar member. It is a figure which shows the cross-sectional structure of the other conventional center pillar member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  This embodiment described below is a case where the vehicle structural member is a center pillar member of an automobile. In each figure showing this embodiment etc., the direction shown by the arrow is the direction seen from the compartment of the automobile.

FIG. 1 shows an arrangement position of each pillar member 12 arranged on the side surface of the automobile 10. A front pillar member (usually referred to as an A pillar) 14 is disposed at the vehicle front side position of the automobile. A rear pillar member (usually referred to as a C pillar) 16 is disposed at the vehicle rear side position of the automobile. A center pillar member (usually referred to as a B pillar) 18 is disposed between the front pillar member and the rear pillar member. Each pillar member 12 forms openings 20 and 22 of a front door and a rear door (not shown) of the automobile 10, and a front door 24 and a rear door 26 are disposed in the openings 20 and 22. Mounted on. Each pillar member 12 functions as a pillar reinforcement that supports a collision load received by each door 24 and 26 in a side collision (side collision) of the automobile. In addition, each pillar member 12 may receive a side collision load directly.

  2 and 3 show the configuration of the center pillar member 18. As shown in FIG. 3, the center pillar member 18 is disposed in an outer member (referred to as a pillar-outer) 28 disposed on the outer side of the vehicle and on the inner side of the vehicle as viewed in a relative positional relationship. And an inner member (referred to as a pillar inner) 30. The outer member 28 and the inner member 30 are disposed to face each other, and the outer member 28 is superimposed on the inner member 30 and integrally joined by welding or the like as will be described in detail later. Thereby, the reinforcement of closed cross-sectional shape is comprised. FIG. 2 shows a state in which the outer member 28 and the inner member 30 are overlapped. As shown in FIG. 2, the center pillar member 18 is formed as a long forming member.

  Each of FIGS. 4 to 7 schematically shows a cross-sectional configuration of each embodiment at the cross-sectional position along the line IV-IV in FIG. 2 with a skeleton diagram. 2 is a cross section orthogonal to the longitudinal direction of the center pillar member 18 formed as an elongated member.

  4 shows the first embodiment, FIG. 5 shows the second embodiment, and FIG. 7 shows the third embodiment. First, the first embodiment of FIG. 4 will be described. FIG. 4 shows a state before the collision load F is applied. The outer member 28 is formed as a protruding mountain shape on the outside of the vehicle. The mountain shape includes a peak side portion 28A of the mountain shape, and both side portions 28B extending downward from both ends of the peak side portion 28A as viewed in FIG. It consists of both end portions 28CL and 28CR integrally formed at the lower part of both side portions 28B.

  In FIG. 4, a member indicated by a broken line disposed outside so as to cover the top side portion 28 </ b> A and both side portions 28 </ b> B of the outer member 28 is a design outer plate 34 that covers the outer member 28. Is formed of a steel plate. The outer plate 34 is also formed as a mountain shape corresponding to the mountain shape of the outer member 28, and has an outer plate top side portion 34A and an outer plate both side portion 34B. And the outer-plate flange part 34C is arrange | positioned in the front-back both directions seeing in FIG. 4 from the lower end of the outer-plate both-sides part 34B.

  The inner member 30 of the first embodiment is formed as one concave shape 32 formed so as to wrap the both end portions 28CL and 28CR of the outer member 28. One concave portion 32 has one bottom portion 30A and two pieces of wall portions 30BL and 30BR standing from both ends of the bottom portion 30A as viewed in FIG. Further, the wall portions 30BL and 30BR are formed to have two pieces of flange portions 30C arranged in both the front and rear directions as viewed in FIG. 4 from the upper end.

  The both end portions 28CL and 28CR of the outer member 28 in the first embodiment are arranged so as to face the inner positions of the two pieces of wall portions 30BL and 30BR that form one recess shape 32 of the inner member 30. It has become. The wall portions 30BL and 30BR and the both end portions 28CL and 28CR are joined by welding 36, and the outer member 28 and the inner member 30 form a closed cross-sectional shape. Both the outer member 28 and the inner member 30 are made of a steel plate having a strength capable of functioning as reinforcement. In addition, let the joining location by the welding 36 of wall part 30BL, 30BR and both-ends part 28CL, 28CR be the 1st joining location Y1. The position of the first joining portion Y1 is a position at which the both end portions 28CL and 28CR of the outer member 28 are spaced. Further, it is also the position of both side portions inside the recess of the recess shape 32 formed in the inner member 30.

  It should be noted that the flange portion 30 </ b> C disposed in the left and right directions of the inner member 30 and the outer plate flange portion 34 </ b> C of the outer plate 34 are also superposed and joined by welding 38. This joining location is defined as a second joining location Y2. Said 1st junction location Y1 and 2nd junction location Y2 are another positions, and since both the plate members of a welding site | part are two sheets, welding can be performed easily. In addition, joining in this embodiment is performed by arc welding or laser welding. The proper use is appropriately selected in consideration of the approaching degree of the welding location, the welding speed, the cost, and the like. The same applies to the embodiments described later.

  Further, the tips of both end portions 28CL and 28CR of the outer member 28 at the first joint location Y1 are disposed in contact with the upper surface of the bottom portion 30A of the inner member 30, and are disposed as a so-called bottom contact state. Has been. As a result, when the collision load F applied to the outer member 28 is applied to the first joint location Y1, the impact load F is also received at the bottom contact portion, so the joint strength of the weld 36 at the first joint location Y1 is high. The load can be reduced.

  The operational effects of the first embodiment described above are as follows. In the first embodiment, the collision load F acting on the outer member 28 at the time of a vehicle collision (at the time of a side collision) is received at the first joint location Y1. Both end portions 28CL, 28CR of the outer member 28 and the wall portions 30BL, 30BR of the inner member 30 constituting the first joint location Y1 are arranged in the same direction as the direction of action of the collision load F. Therefore, a breaking force in the shearing direction acts on the first joint location Y1. For this reason, compared with the case where the acting force in the peeling direction is applied, the fracture strength at the joint is strong, and the cross-sectional shape formed by the inner member 30 and the outer member 28 can be maintained up to a certain level of collision load. .

  In addition, according to the first embodiment, an acting force that expands and deforms the outer member 28 due to the collision load F is generated. The acting force of the expansion deformation reaches both end portions 28CL and 28CR of the outer member 28. However, this acting force is received by the wall portions 30BL and 30BR of the inner member 30 disposed on the outside in the direction in which both end portions 28CL and 28CR are to expand. Referring to FIG. 4, the leftward expansion force of the left end portion 28 </ b> CL of the outer member 28 is received by the left wall portion 30 </ b> BL of the inner member 30. Further, the rightward expansion force of the right end portion 28CR of the outer member 28 is received by the right wall portion 30BR of the inner member 30. Thereby, even if the weld 36 of the first joint location Y1 is broken by a collision load, the expansion deformation of the both end portions 28CL and 28CR of the outer member 28 is prevented or suppressed by the wall portions 30BL and 30BR of the inner member 30. Is done. Therefore, even after the first joint location Y1 is broken, the cross-section of the cross-sectional shape can be prevented or suppressed as much as possible, and energy absorption at the time of collision can be effectively performed. Therefore, the wall portions 30BL and 30BR of the inner member 30 in the first embodiment are wall portions that prevent or suppress the action in the expansion direction of both end portions of the outer member as referred to in the present invention.

  Further, according to the first embodiment, the closed cross-sectional shape formed by the outer member 28 and the inner member 30 is such that the two end portions 28CL and 28CR of the outer member 28 are within one concave shape 32 of the inner member 30. It is formed by fitting. For this reason, the entire mountain-shaped area of the outer member 28 is closed. As a result, the cross-sectional area of the closed cross-sectional shape can be formed relatively wide, which is advantageous in terms of collision load resistance.

  Next, a second embodiment will be described. A second embodiment is shown in FIGS. FIG. 5 shows a state before deformation before the collision load is applied, and FIG. 6 shows a state after deformation after the collision load is applied. In the description of the second embodiment, the same components as those in the first embodiment may be denoted by the same reference numerals and the description thereof may be omitted.

  In the second embodiment, the configuration of the inner member 30 is different from that of the first embodiment described above, and the configurations of the outer member 28 and the outer plate 34 disposed outside the outer member 28 are substantially the same as those of the first embodiment. . In the second embodiment, two recessed portions 40 are formed at the positions of both end portions 28CL and 28CR of the outer member 28 in the bottom portion 30A of the inner member 30. As shown in FIG. 5, the two recessed positions 40 are composed of a left recessed position 40L at the left position and a right recessed position 40R at the right position.

  The shape of the concave portion 40 of the left concave portion 40L and the right concave portion 40R is formed as a step shape. In the case of the present embodiment, the heights of the outer wall portions 40LO and 40RO are formed higher than the inner wall portions 40LI and 40RI in the respective recessed positions 40L and 40R. Therefore, as seen in FIG. 5, the position of the bottom portion 30A of the inner member 30 is the position in the vehicle inner direction. As a result, also in the second embodiment, the cross-sectional area of the closed cross-sectional shape formed by the outer member 28 and the inner member 30 can be increased by the amount of the lower inner wall portions 40LI and 40RI. Thereby, it is possible to improve the anti-collision load characteristic due to the cross-sectional area effect.

  According to the second embodiment, the outer wall portions 40LO, 40RO of both concave positions 40L, 40R perform the same function as the wall portions 30BL, 30BR in the first embodiment. In other words, the expansion action that occurs at both end portions 28CL and 28CR of the outer member 28 when the collision load F acts is prevented or suppressed by the outer wall portions 40LO and 40RO. Therefore, both end portions 28CL and 28CR of the second embodiment correspond to the insertion portion of the present invention, and the outer wall portions 40LO and 40RO prevent the action of the both end portions of the outer member in the present invention in the extending direction. It corresponds to a wall part to be suppressed.

  FIG. 6 shows a cross-sectional collapse state of the closed cross-sectional shape formed by the outer member 28 and the inner member 30 when the collision load F acts. As can be seen from this figure, the outer member 28 is slightly pushed inward by the collision load F to be deformed, but the expansion deformation of both end portions 28CL and 28CR is effectively prevented or suppressed.

  In the second embodiment, the first joining portion Y1 by the welding 36 is performed at the step-shaped portions of the wall portions 40LO and 40RO outside the recess positions 40L and 40R. In other words, the outer wall portions 40LO, 40RO of the inner member 30 and the both end portions 28CL, 28CR of the outer member 28 are joined together by welding 36 at the joining position. Thereby, compared with three-piece welding, two-piece welding is easy to weld, and the number of choices of welding types increases. Accordingly, more appropriate welding can be selected.

  Moreover, in this 2nd Embodiment, even if the weld 36 of the 1st junction location Y1 fractures | ruptures, the deformation | transformation of the outer member 28 can be suppressed as much as possible, and suppression of a cross-sectional collapse can be aimed at. it can. That is, since both end portions 28CL and 28CR of the outer member 28 are still inserted into the recessed portions 40L and 40R even after breaking, the wall portions 40LO and 40LI, 40RO and 40RI on both sides of the recessed portions 40L and 40R move. Is restrained.

  Next, a third embodiment will be described. A third embodiment is shown in FIG. FIG. 7 shows the state before the action of the collision load. In the description of the third embodiment, the same components as those in the first embodiment and the second embodiment described above may be denoted by the same reference numerals and the description thereof may be omitted.

  In the third embodiment, recess positions 40L and 40R formed in the inner member 30 in the second embodiment described above are formed in the outer member 28. Therefore, the recessed positions 50L and 50R of the third embodiment are formed at the tips of both end portions 28CL and 28CR of the outer member 28. In the third embodiment, the insertion portions 60L and 60R to be inserted into the recessed portions 50L and 50R are formed so as to protrude from the bottom portion 30A of the inner member 30 toward the vehicle outer side.

  The recessed positions 50L, 50R of the third embodiment are arranged in such a manner as to open toward the vehicle inner side, and the recessed positions 50L, 50R are respectively provided with an inner contact part 50LI, 50RI and an outer contact part 50LO, It consists of 50RO. Then, the contact portions 50LI and 50RI inside the concave portions 50L and 50R and the insertion portions 60L and 60R are welded 36 to form the first joint portion Y1. In order to facilitate welding 36 (Y1) between the inner contact portions 50LI and 50RI and the insertion portions 60L and 60R of the recess positions 50L and 50R, the outer contact portions 50LO and 50RO are eliminated. Or it is good to form the length short.

  Also in the third embodiment, as in the case of the second embodiment, the expansion deformation action at the time of the action of the collision load F is prevented by fitting the recess positions 50L and 50R with the insertion portions 60L and 60R. Or can be suppressed. In this action, the insertion parts 60L and 60R of the third embodiment correspond to wall parts that prevent or suppress the action of the expansion action of the outer member in the present invention.

  The invention has been described with reference to specific embodiments. However, the present invention can be implemented in various other forms.

  For example, in each of the above embodiments, the case where the vehicle body structural member of the present invention is applied to the center pillar member 18 of an automobile has been described. In addition, the present invention can be applied to a front pillar member and a rear pillar member. Furthermore, the present invention can be applied to other structural members of automobiles, for example, bamber reinforcement.

Further, in each of the above-described embodiments, the first joint portion Y1 between the outer member 28 and the inner member 30 is disposed as a so-called bottom contact state, but it is not necessarily required to be disposed as a bottom contact state. . That is, a gap may be provided between the outer member 28 and the inner member 30 due to the necessity for manufacturing.

  In addition, the shape of the recessed portion 40 in the second embodiment described above does not necessarily have to be a stepped shape, and may be a recessed portion having the same height from the necessity of design.

  Moreover, in the above-mentioned embodiment, although joining is welding, mechanical joinings, such as a rivet joining, may be sufficient.

DESCRIPTION OF SYMBOLS 10 Automobile 12 Pillar member 14 Front pillar member 16 Rear pillar member 18 Center pillar member 20 Opening part 22 Opening part 24 Front door 26 Rear door 28 Outer member 28A Top side part 28B Both side part 28C Both end part 30 Inner member 30A Bottom part 30B Wall part 30C Flange part 32 One concave part shape 34 Outer plate 34A Outer plate top side part 34B Outer plate both sides part 34C Outer plate flange part 36 Welding 38 Welding 40 Recessed part 40L Left recessed part 40R Right recessed part 50L, 50R Recessed part 60L, 60R Insertion site Y1 1st joint location Y2 2nd joint location

Claims (8)

A long shape that includes an outer member that is relatively disposed outside the vehicle and an inner member that is relatively disposed inside the vehicle, wherein the outer member and the inner member are disposed facing each other. The outer member has a mountain-shaped cross section in a direction perpendicular to the longitudinal direction, and both end portions of the mountain-shaped outer member are joined and closed at positions spaced from the inner member. A vehicle structural member forming a cross-sectional shape,
In the joining configuration of the outer member and the inner member, the inner member is configured such that the wall portion prevents or suppresses the action of the both end portions of the mountain-shaped outer member in the expansion direction so as to face the both ends of the outer member. The vehicle structure is formed by joining a contact surface that prevents or suppresses the action in the expansion direction in the wall portion of the inner member and both end surface surfaces of the outer member facing the contact surface. Element. The vehicle structural member according to claim 1,
The inner member is formed with one concave portion in which an interval width at a position where both end portions of the outer member are joined is formed, and both inner surfaces of the one concave portion are the wall portions, A vehicle structural member joined to both end portions of the outer member. The vehicle structural member according to claim 1,
As for the joining configuration of the outer member and the inner member, the insertion portion is formed in one of the outer member and the inner member, and the concave portion where the insertion portion can be inserted is formed in the other. The structural member for vehicles formed by joining the site | part used as the said wall site | part in the said inner member, and the both ends site | part of the said outer member. The vehicle structural member according to claim 3,
The structural member for vehicles which formed the said recessed part position in the location which joins the both ends site | part of the said outer member in the said inner member, and formed the both end site | parts of the said outer member as the said insertion part. A vehicle structural member according to any one of claims 2 to 4, wherein
The joint structure of the both ends part of the said outer member and an inner member is the structural member for vehicles joined in the state which the site | part front-end | tip of the other member contacts the bottom part of the recessed part formed in the one member side. The vehicle structural member according to claim 4,
The concave part shape formed in the inner member is a stepped shape in which the outer side is higher than the inner side, and is a vehicle structural member that is welded and joined at a higher position on the outer side. The vehicle structural member according to any one of claims 1 to 6, wherein
The outer member is provided with a design outer plate that covers the outer member, and the outer plate is joined to the inner member at a position different from the joining position of the outer member and the inner member. A vehicle structural member. The vehicle structural member according to any one of claims 1 to 6 is a vehicle structural member that is a pillar reinforcement of an automobile.

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