JP2009214802A - Rocker section structure and structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a rocker section structure and structure that prevents or inhibits deformation of cross section even if a load acts in a direction in which flexible angle is caused to become enlarged. <P>SOLUTION: A rocker inner panel 40 has an upper wall 42 and a sidewall 44 with plain holes 48, 50 being bored to be formed respectively therethrough, at the same time, a coupling rod 52 is allocated at a position wherein its middle part 52A links between the plain holes 48 and 50 in a linear state, while both the end parts 52B, 52C penetrate the plain holes 48, 50 so as to be bent in the direction of the surfaces of the periphery of the plain holes 48, 50, thereby being fixed to the rocker inner panel 40 side. Thus, even if a load acts in the direction of causing the flexible angle of the rocker inner panel 40 to be enlarged, the deformation of the cross section of the rocker inner panel 40 is prevented or suppressed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rocker part structure and a structure provided with a bent panel.

A side sill (rocker) is disposed at the lower end of the vehicle body side with the longitudinal direction of the vehicle. In such a side sill cross section, a bulkhead-like brace may be provided in order to suppress the cross-sectional deformation of the side sill at the time of a side collision (for example, refer to Patent Document 1).
JP-A-10-7021

  However, in such a structure, when a load acts in the direction of increasing the bending angle of the side sill at the time of a side collision (so-called direction of opening the cross section) and the upper end of the brace and the inner surface of the upper wall of the side sill are separated, In some cases, the cross-sectional deformation of the side sill cannot be effectively suppressed. Even if the top flange of the brace and the inner wall of the upper wall of the side sill are overlapped and welded in the vertical direction of the vehicle, the load acts in the direction in which they are peeled off in the event of a side collision, so the side sill deformation is not necessarily effectively suppressed It may not be.

  In view of the above facts, an object of the present invention is to obtain a rocker structure and a structure that can prevent or suppress cross-sectional deformation even when a load is applied in a direction in which a bending angle is increased.

  The rocker portion structure of the present invention described in claim 1 constitutes an inner portion in the vehicle width direction of the rocker body arranged at the lower end portion of the vehicle body side portion with the longitudinal direction of the vehicle as the longitudinal direction. A swelled portion that is formed in a cross-sectional hat shape that is open on the outside in the direction of the vehicle and that swells inward in the vehicle width direction. A rocker inner panel having a through hole formed therein and an intermediate portion disposed at a position connecting the through holes in a straight line, and both end portions pass through the through hole and extend along the surface direction around the through hole. And a connecting member fixed to the rocker inner panel side by being bent.

  According to the rocker portion structure of the present invention as set forth in claim 1, the rocker body is disposed at the lower end portion of the vehicle body side portion with the vehicle front-rear direction as the longitudinal direction, and the rocker inner panel is located on the inner side in the vehicle width direction of the rocker body. Since it is formed in a cross-sectional hat shape that configures the part and the vehicle width direction outer side is opened in front view of the vehicle, for example, in the case of a side collision, the rocker is caused by a collision load inward in the vehicle width direction on the vehicle upper side from the rocker body The main body receives a tensile force from the pillar side, and a load acts in a direction to increase the bending angle of the rocker inner panel.

  Here, the rocker inner panel has a through hole formed in any two of the three plate-like wall portions constituting the bulging portion bulging inward in the vehicle width direction, and the connecting member is The intermediate part is arranged at a position connecting the through holes in a straight line, and both end parts are fixed to the rocker inner panel side by being bent along the surface direction around the through hole through the through hole. Therefore, even if a load acts in the direction of increasing the bending angle of the rocker inner panel, the deformation of the cross section of the rocker inner panel is prevented or suppressed.

  In other words, when a load is applied in a direction that increases the bending angle of the rocker inner panel, the rocker inner panel tends to displace in a direction that causes both ends of the connecting member to pass through the through hole, but both ends of the connecting member penetrate. Since it is bent along the surface direction around the hole, it is possible to suppress slipping through the through holes on both ends of the connecting member. At this time, a load that is pulled to both ends of the connecting member by the rocker inner panel acts on the connecting member, but both ends of the connecting member are fixed to the rocker inner panel by the bending, so the rocker inner panel side It tries to maintain the wire length (hanging length) of the connecting member while resisting the tensile load from the connecting member. For this reason, cross-sectional deformation of the rocker inner panel is prevented or suppressed.

  According to a second aspect of the present invention, the rocker portion structure of the present invention is characterized in that, in the configuration of the first aspect, both end portions of the connecting member are bent in an acute angle direction.

  According to the rocker part structure of the present invention described in claim 2, since both ends of the connecting member are bent in an acute angle direction, a load acts in a direction to increase the bending angle of the rocker inner panel. Even when the panel tries to displace both ends of the connecting member in a direction to pass through the through-hole, both ends of the connecting member are not easily deformed (returned easily) to the extended position of the linear intermediate portion, and the through-hole It becomes difficult to slip through. As a result, the connecting member more effectively resists the tensile load from the rocker inner panel side.

  The structure of the present invention described in claim 3 is formed in a bent shape having a single or a plurality of polygonal lines, a plurality of flat plate portions are connected, and an imaginary straight line can be directly connected among the flat plate portions. A panel member in which a through hole is formed to penetrate any two surfaces, and an intermediate portion that is disposed at a position that linearly connects the through holes, and both end portions penetrate the through hole. And a connecting member fixed to the panel member side by being bent along the surface direction around the through hole.

  According to the structure of the present invention described in claim 3, the panel member is formed with through-holes penetrating each plate-like portion constituting any two surfaces capable of directly connecting virtual lines. The connecting member is disposed at a position where the intermediate portion linearly connects the through holes, and both end portions penetrate the through holes and are bent along the surface direction around the through holes, thereby the panel member side. Therefore, even if a load acts in the direction of increasing the bending angle of the panel member, the cross-sectional deformation of the panel member is prevented or suppressed.

  That is, when a load is applied in the direction in which the bending angle of the panel member is increased, the panel member attempts to displace the both end sides of the connecting member in a direction to pass through the through hole. Since it is bent along the peripheral surface direction, slipping from the through holes on both ends of the connecting member is suppressed. At this time, the panel member is subjected to a load that is pulled to both ends of the connecting member. However, since the both ends of the connecting member are fixed to the panel member by bending, the pulling from the panel member side is performed. While trying to withstand the load, it tries to maintain the length of the span of the connecting member (the span length). For this reason, the cross-sectional deformation of the panel member is prevented or suppressed.

  As described above, according to the rocker part structure according to claim 1 of the present invention, even if a load is applied in a direction in which the bending angle of the rocker inner panel is increased, cross-sectional deformation of the rocker inner panel is prevented or suppressed. It has an excellent effect of being able to.

  According to the rocker part structure according to claim 2, even if a load acts in a direction to increase the bending angle of the rocker inner panel, both ends of the connecting member are not easily slipped from the through hole of the rocker inner panel. The connecting member has an excellent effect that it can more effectively resist the tensile load from the rocker inner panel side.

  According to the structure of the third aspect, there is an excellent effect that the deformation of the cross section of the panel member can be prevented or suppressed even when a load acts in the direction of increasing the bending angle of the panel member.

[First Embodiment]
The rocker part structure 30 according to the first embodiment to which the rocker part structure and structure of the present invention are applied will be described with reference to FIGS. In these figures, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side.

  FIG. 1 is a perspective view of the rocker portion structure 30 and its peripheral portion according to the present embodiment as viewed from the inside in the vehicle width direction, and FIG. 3 is an enlarged longitudinal sectional view of the main part of the rocker portion structure 30 ( An enlarged longitudinal sectional view taken along line 3-3 in FIG. 1 is shown.

  As shown in FIG. 1, a center pillar (B-pillar) 16 is erected in the vehicle longitudinal direction intermediate portion in the vehicle body side portion 10. A front side door opening 12 is formed on the front side of the vehicle body side portion 10 by a front side door (not shown) and the center pillar 16 serves as a rear end edge. A rear side door opening 14 is formed, which is opened and closed by a rear side door (not shown) and the center pillar 16 serves as a front edge. The center pillar 16 is a vehicle body frame material having a closed cross-sectional structure that is arranged with the vehicle vertical direction as a longitudinal direction, and includes a center pillar inner panel 18 and a center pillar outer reinforcement 20.

  The center pillar inner panel 18 disposed on the inner side in the vehicle width direction in the center pillar 16 is disposed with the vehicle vertical direction as the longitudinal direction, and the horizontal cross-sectional shape is formed on the vehicle upper side of the rocker body 32, which will be described in detail later. The hat is open. A pair of front and rear flange portions 18 </ b> A and 18 </ b> B for bonding are formed at the front end portion and the rear end portion of the center pillar inner panel 18.

  A center pillar outer reinforcement 20 is disposed on the outer side in the vehicle width direction of the center pillar inner panel 18 with the vehicle vertical direction as a longitudinal direction. The horizontal cross-sectional shape of the center pillar outer reinforcement 20 is a hat shape in which the inner side in the vehicle width direction is opened, and a bulging portion 20C that bulges outward in the vehicle width direction is formed in the middle portion in the vehicle front-rear direction. A pair of front and rear flange portions 20 </ b> A and 20 </ b> B for bonding are formed at the front end portion and the rear end portion of the outer reinforcement 20.

  The front flange portion 20 </ b> A of the center pillar outer reinforcement 20 is spot welded in a state of being overlapped with the front flange portion 18 </ b> A of the center pillar inner panel 18. Further, the rear flange portion 20B of the center pillar outer reinforcement 20 is spot-welded in a state of being overlapped with the rear flange portion 18B of the center pillar inner panel 18. As a result, the center pillar outer reinforcement 20 and the center pillar inner panel 18 constitute a closed section 22.

  A rocker body 32 (also referred to as a side sill) is disposed at the lower end of the vehicle body side portion 10 with the longitudinal direction of the vehicle being the longitudinal direction. As shown in FIG. 3, the rocker body 32 is a vehicle body skeleton material having a closed cross-sectional structure, and includes a rocker outer reinforcement 34 disposed on the outer side in the vehicle width direction. The rocker outer reinforcement 34 is arranged with a longitudinal direction in the vehicle front-rear direction, and is formed in a cross-sectional hat shape in which the inner side in the vehicle width direction is opened when the vehicle is viewed from the front. Further, an upper flange portion 34 </ b> A is formed at the upper end portion of the rocker outer reinforcement 34, and a lower flange portion 34 </ b> B is formed at the lower end portion of the rocker outer reinforcement 34. The upper flange portion 34A and the lower flange portion 34B are arranged such that their general surfaces are plane directions including the vehicle vertical direction and the vehicle front-rear direction.

  The rocker body 32 includes a rocker inner panel 40 as a panel member disposed on the inner side in the vehicle width direction of the rocker outer reinforcement 34. As shown in FIG. 1, the rocker inner panel 40 constituting the vehicle width direction inner side portion of the rocker main body 32 is arranged with the vehicle front-rear direction as a longitudinal direction, and the cross section in which the vehicle width direction outer side is opened in a vehicle front view. It is formed in a hat shape. In other words, the rocker inner panel 40 is formed in a bent shape having a plurality of broken lines (an outer first ridge line 41A, an inner first ridge line 43, an inner second ridge line 45, and an outer second ridge line 41B, which will be described later). Plate portions (an upper flange portion 40A, an upper wall portion 42, a side wall portion 44, a lower wall portion 46, and a lower flange portion 40B, which will be described later) are arranged in a row.

  An upper flange portion 40A as a flat plate portion is formed at the upper end portion of the rocker inner panel 40, and the upper flange portion 40A constitutes the upper end side of the rocker inner panel 40 in a vehicle front view. Further, a lower flange portion 40B as a flat plate portion is formed at the lower end portion of the rocker inner panel 40, and the lower flange portion 40B constitutes the lower end side of the rocker inner panel 40 in a vehicle front view. 40 A of upper flange parts and the lower flange part 40B are arrange | positioned by making the surface into which a general surface includes a vehicle up-down direction and a vehicle front-back direction as a surface direction.

  The rocker body 32 basically includes an upper flange portion 40A of the rocker inner panel 40 and an upper flange portion 34A of the rocker outer reinforcement 34 shown in FIG. 3 (except for a portion corresponding to the lower portion of the center pillar 16). While being spot-welded, the lower flange portion 40B of the rocker inner panel 40 and the lower flange portion 34B of the rocker outer reinforcement 34 are spot-welded to form a closed cross-sectional structure. That is, the closed cross section 38 is formed by the rocker inner panel 40 and the rocker outer reinforcement 34.

  As shown in FIG. 3, in the portion corresponding to the lower portion of the center pillar 16, the center pillar inner panel 18 includes the upper flange portion 40 </ b> A of the rocker inner panel 40 and the upper flange portion of the rocker outer reinforcement 34 at the lower portion. In a state of being sandwiched between the lower flange portion 40B of the rocker inner panel 40 and the lower flange portion 34B of the rocker outer reinforcement 34 while being spot-welded in three layers while being sandwiched between Spot welded in three layers. Further, the lower end portion 20D of the center pillar outer reinforcement 20 is coupled to a bulging portion 34C outward in the vehicle width direction formed at an intermediate portion in the height direction of the rocker outer reinforcement 34 by spot welding.

  The rocker inner panel 40 formed in a cross-sectional hat shape whose outer side in the vehicle width direction is opened when viewed from the front of the vehicle is between the upper flange portion 40A and the lower flange portion 40B (that is, the intermediate portion in the height direction). It is set as the bulging part 40C which bulged to. The bulging portion 40C includes three flat wall portions, that is, an upper wall portion 42, a side wall portion 44, and a lower wall portion 46. In the bulging portion 40C, the upper wall portion 42 as a flat plate portion extending from the lower end of the upper flange portion 40A is slightly inclined toward the vehicle lower side toward the vehicle width direction inner side, and the upper end of the lower flange portion 40B. The lower wall portion 46 as a flat plate portion extended from the vehicle is slightly inclined toward the vehicle upper side toward the inner side in the vehicle width direction. Moreover, the side wall part 44 as a flat plate part which connects the upper wall part 42 and the lower wall part 46 is arrange | positioned by making the surface into which a general surface includes a vehicle up-down direction and a vehicle front-back direction as a surface direction. In the present embodiment, the side wall portion 44 is formed in a step shape in which the lower portion protrudes one step smaller inward in the vehicle width direction than the upper side, but may have a shape without such a step.

  As shown in FIGS. 1 and 3, the lower end of the upper flange portion 40A and the outer end portion in the vehicle width direction of the upper wall portion 42 form an outer first ridge line 41A as a fold line extending in the vehicle front-rear direction. The upper end of the lower flange portion 40B and the outer end portion in the vehicle width direction of the lower wall portion 46 form an outer second ridge line 41B as a broken line extending in the vehicle front-rear direction. Further, the vehicle width direction inner side end portion of the upper wall portion 42 and the upper end portion of the side wall portion 44 form an inner first ridge line 43 as a broken line extending in the vehicle front-rear direction, and the lower end portion of the side wall portion 44 and the lower end portion thereof The inner end of the wall 46 in the vehicle width direction forms an inner second ridgeline 45 as a broken line extending in the vehicle front-rear direction.

  A terminal portion 24A on the outer side in the vehicle width direction of the floor pan 24 is spot-welded to the side wall portion 44 (side surface) of the bulging portion 40C of the rocker inner panel 40 in a state where the terminal portion 24A is bent toward the vehicle upper side. The floor pan 24 is disposed on the inner side in the vehicle width direction of the rocker body 32 to constitute a vehicle body floor. A plurality of floor cross members 26 are arranged on the upper surface side of the floor pan 24 with the vehicle width direction as the longitudinal direction. As shown in FIG. 1, the floor cross member 26 includes an upper wall portion 42 (upper surface) of the bulging portion 40 </ b> C, a side wall portion 44 (side surface) of the bulging portion 40 </ b> C, and an upper surface of the floor pan 24. Each spot welded. Note that the floor cross member 26 shown in FIGS. 1 and 3 is disposed at both ends near the lower portion of the center pillar 16.

  As shown in FIG. 1, in the rocker inner panel 40, an upper wall that is two flat plate portions (two surfaces) that are desired to suppress deformation in a direction in which the bending angle increases in the present embodiment (so-called open deformation of a cross section). Round holes 48 and 50 as through holes are formed through the portion 42 and the side wall portion 44 (the round hole formed through the upper wall portion 42 is indicated by reference numeral 48 and is formed through the side wall portion 44. A round hole is shown by the code | symbol 50.). As shown in FIG. 3, the upper wall portion 42 and the side wall portion 44 are flat plate-like portions constituting two surfaces capable of directly connecting virtual lines, and the round holes 48 and 50 are formed on the same axis. And the penetration direction matches. Further, as shown in FIG. 1, the portions where the round holes 48 and 50 are formed in the present embodiment are located near the ends in the vehicle width direction of the floor cross member 26 (the round holes 48 and 50 shown in FIG. 1). 50 is formed in the vicinity of the end portion of the floor cross member 26 in the vehicle width direction and in the vicinity of the lower portion of the center pillar 16).

  A connecting rod 52 as a connecting member penetrating the round holes 48 and 50 is attached to the upper part of the rocker inner panel 40. The connecting rod 52 shown in FIG. 3 is made of a bar material made of a highly rigid metal material (for example, a steel material), and includes an intermediate portion 52A arranged at a position connecting the round holes 48 and 50 in a straight line. At the same time, both end portions 52B and 52C penetrate the round holes 48 and 50 and are bent along the surface direction around the round holes 48 and 50, thereby being fixed to the rocker inner panel 40 side. That is, the connecting rod 52 is fixed to the upper wall portion 42 and the side wall portion 44 with a structure that does not require welding, and forms a closed cross-sectional portion having a triangular shape when viewed from the front of the vehicle together with the upper wall portion 42 and the side wall portion 44. ing.

  FIG. 2 is a longitudinal sectional view showing a procedure for attaching the connecting rod 52. As shown in FIG. 2A, first, the connecting rod 52 is inserted into the round holes 48, 50, and the intermediate part 52A is arranged at a position connecting the round holes 48, 50 in a straight line, and both end parts 52B. , 52C side is disposed outside the hat-shaped cross section of the rocker inner panel 40. Next, as shown in FIG. 2B, both end portions 52 </ b> B and 52 </ b> C of the connecting rod 52 are bent along the surface direction around the round holes 48 and 58. In the present embodiment, both end portions 52B and 52C of the connecting rod 52 are bent in an acute angle direction so as to approach each other (so that the tip faces the inner first ridge line 43 side). Note that both end portions 52B and 52C indicated by a two-dot chain line in FIG. 2B are positions before bending.

  As described below, the rocker portion structure 30 in which both end portions 52B and 52C of the connecting rod 52 are fixed to the upper wall portion 42 and the side wall portion 44 of the rocker inner panel 40 shown in FIG. The rocker inner panel 40 has a structure that prevents or suppresses deformation in a direction in which the bending angle of the rocker inner panel 40 increases (so-called opening deformation of the cross section) during a collision.

(Action / Effect)
Next, the operation and effect of the above embodiment will be described.

  As shown in FIG. 4, for example, when the barrier 100 (the bumper part of the barrier) collides with the lower part of the vehicle body side part 10 (that is, side collision) and the collision load F is input to the lower part of the center pillar 16, The lower part of the pillar 16 tends to be deformed so as to fall inward in the vehicle width direction (inside the vehicle compartment, the direction of arrow A).

  In the rocker part structure 30 according to the present embodiment, the rocker body 32 is disposed at the lower end portion of the vehicle body side part 10 with the vehicle front-rear direction as the longitudinal direction, and the rocker inner panel 40 is a part of the rocker body 32 on the inner side in the vehicle width direction. And the upper wall 42 of the rocker inner panel 40 together with the rocker outer reinforcement 34 from the side of the center pillar 16 at the time of the side collision. A load acts in the direction (arrow C direction) which enlarges the bending angle of the rocker inner panel 40 in response to the tensile force (see arrow B direction).

  Here, the rocker inner panel 40 has round holes 48 and 50 formed through the upper wall portion 42 and the side wall portion 44, and the connecting rod 52 has an intermediate portion 52 </ b> A linearly between the round holes 48 and 50. The two ends 52B and 52C pass through the round holes 48 and 50 and are bent along the surface direction around the round holes 48 and 50 and fixed to the rocker inner panel 40 side. Therefore, even if a load acts in a direction in which the bending angle of the rocker inner panel 40 is increased (arrow C direction), deformation of the cross section of the rocker inner panel 40 is prevented or suppressed.

  That is, when a load is applied in a direction in which the bending angle of the rocker inner panel 40 is increased (arrow C direction), the rocker inner panel 40 is a direction in which both ends 52B and 52C of the connecting rod 52 are slipped from the round holes 48 and 50. However, since both end portions 52B and 52C of the connecting rod 52 are bent along the surface direction around the round holes 48 and 50, the round holes 48 on the both end portions 52B and 52C side of the connecting rod 52 are bent. , Slipping from 50 is suppressed. At this time, the load pulled by the rocker inner panel 40 toward the both end portions 52B and 52C acts on the connecting rod 52, but both ends 52B and 52C of the connecting rod 52 are bent toward the rocker inner panel 40 side by the bending. Since it is fixed, it tries to maintain the wire length L (hanging length, see FIG. 3) of the connecting rod 52 while resisting the tensile load from the rocker inner panel 40 side. For this reason, the cross-sectional deformation of the rocker inner panel 40 is prevented or suppressed.

  In addition, since both end portions 52B and 52C of the connecting rod 52 are bent in an acute angle direction, a load acts in a direction in which the bending angle of the rocker inner panel 40 is increased (arrow C direction), and the rocker inner panel 40 is connected. Even when attempting to displace both ends 52B and 52C of the rod 52 in a direction to pass through the round holes 48 and 50, the both ends 52B and 52C of the connecting rod 52 are deformed to the extended positions of the linear intermediate portion 52A. 2 (that is, it is difficult to return to the positions indicated by the two-dot chain lines 52B and 52C in FIG. 2B) and it is difficult to slip through the round holes 48 and 50. As a result, the connecting rod 52 shown in FIG. 4 more effectively resists the tensile load from the rocker inner panel 40 side.

  As described above, according to the rocker portion structure 30 according to the present embodiment, the rocker portion 30 has a simple configuration, and even when a load is applied in a direction in which the bending angle of the rocker inner panel 40 is increased (arrow C direction). Cross-sectional deformation of the inner panel 40 can be prevented or suppressed. As a result, the amount of collapse deformation of the center pillar 16 at the time of a side collision can be suppressed.

  Supplementing the above operation and effect, in order to prevent or suppress deformation in the direction in which the bending angle of the rocker inner panel (40) is increased (so-called opening deformation of the cross section), for example, the rocker body (32) has an inner side. In the contrast structure in which a reinforcing bead straddling the first ridge line (43) is formed, the rocker inner panel is applied when a load is applied in the direction in which the bending angle of the rocker inner panel (40) is increased (see the arrow C direction). Although the cross-sectional deformation of (40) can be prevented or suppressed, since the bead is configured to straddle the inner first ridge line (43), the bead becomes a starting point of deformation at the time of the front collision, and the front collision performance. Will be reduced. On the other hand, in the rocker part structure 30 according to the present embodiment, since the inner first ridge line 43 is maintained, there is an advantage that it is not necessary to deteriorate the front collision performance.

  Further, in order to prevent or suppress the deformation of the rocker inner panel (40) in the direction in which the bending angle increases, for example, another contrasting structure in which a bulkhead is disposed in the cross section of the rocker inner panel (40). In this case, the mold for forming the bulkhead and the welding work of the bulkhead are required, resulting in an increase in cost, and the load acts in the direction of increasing the bending angle of the rocker inner panel (40) at the time of a side collision. If the upper end of the head is separated from the inner surface of the upper wall portion (42) of the rocker inner panel (40), the cross-sectional deformation of the rocker inner panel (40) may not be effectively suppressed. On the other hand, in the rocker part structure 30 according to this embodiment, the mold for forming the bulkhead and the welding operation of the bulkhead are not required, and the cost can be reduced, and a small part called the connecting rod 52 is used. It can effectively suppress cross-sectional deformation and contribute to weight reduction.

[Second Embodiment]
Next, a rocker part structure 60 according to a second embodiment to which the rocker part structure and structure of the present invention are applied will be described with reference to FIG. FIG. 5 is a perspective view (a view corresponding to FIG. 1 in the first embodiment) of the rocker portion structure 60 and its peripheral portion according to the second embodiment of the present invention viewed from the inside in the vehicle width direction. ing. As shown in this figure, the rocker part structure 60 includes a connecting plate 62 as a connecting member instead of the connecting rod 52 (see FIG. 1), and the rocker part structure 30 according to the first embodiment. Is different. Other configurations are substantially the same as those of the first embodiment. Therefore, components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 5, in the rocker inner panel 40, an upper wall that is two flat plate portions (two surfaces) that are desired to suppress deformation in a direction in which the bending angle increases (so-called open deformation of a cross section) in the present embodiment. In the portion 42 and the side wall portion 44, long holes 64 and 66 as through holes extending in the vehicle front-rear direction are formed so as to penetrate (the long hole formed through the upper wall portion 42 is denoted by reference numeral 64, and the side wall portion The long hole formed through 44 is indicated by reference numeral 66). These long holes 64 and 66 are formed on the same axis and have the same penetration direction. Further, in the present embodiment, the long holes 64 and 66 are formed in the vicinity of the end of the floor cross member 26 in the vehicle width direction (the long holes 64 and 66 shown in FIG. The vicinity of the end of the member 26 in the vehicle width direction and the vicinity of the lower portion of the center pillar 16).

  A connection plate 62 that passes through the long holes 64 and 66 is attached to the upper portion of the rocker inner panel 40. The connecting plate 62 is made of a highly rigid metal plate material (for example, a steel plate or the like), and includes an intermediate portion 62A arranged at a position connecting the long holes 64 and 66 in a straight line, and both end portions 62B, 62C passes through the long holes 64 and 66 and is bent along the surface direction around the long holes 64 and 66, thereby being fixed to the rocker inner panel 40 side. Both end portions 62B and 62C of the connecting plate 62 are bent in an acute angle direction so as to approach each other (so that the tip faces the inner first ridge line 43 side). The connecting plate 62 forms a triangular closed cross section with the upper wall portion 42 and the side wall portion 44 when viewed from the front of the vehicle. Also with the above configuration, the same operations and effects as those of the first embodiment described above can be obtained.

[Third Embodiment]
Next, a rocker part structure 70 according to a third embodiment to which the rocker part structure and structure of the present invention are applied will be described with reference to FIG. FIG. 6 is a cross-sectional view (a view corresponding to FIG. 3 in the first embodiment) showing the main part of the rocker structure 70 according to the third embodiment of the present invention. As shown in this figure, in the rocker part structure 70, a round hole 72 as a through hole is formed in the lower wall part 46 in place of the side wall part 44, and a connecting rod 74 as a connecting member is provided in the upper wall part. It differs from the rocker part structure 30 (refer FIG. 3) which concerns on 1st Embodiment by the point which spans 42 and the lower wall part 46. FIG. Other configurations are substantially the same as those of the first embodiment. Therefore, components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6, a round hole 72 is formed through the lower wall portion 46. The upper wall portion 42 and the lower wall portion 46 are flat plate-like portions constituting two surfaces that can directly connect a virtual straight line. In the present embodiment, the round holes 48 and 72 are formed coaxially. The penetration direction is set to match. Further, the formation portion of the round hole 72 is in the vicinity of the end portion in the vehicle width direction of the floor cross member 26 (the formation portion of the round hole 72 shown in FIG. In the vicinity and near the lower portion of the center pillar 16).

  A connecting rod 74 penetrating the round holes 48 and 72 is attached to the rocker inner panel 40. The connecting rod 74 is made of a highly rigid metal material (for example, steel), and includes an intermediate portion 74A arranged at a position connecting the round holes 48 and 72 in a straight line, and both end portions 74B. 74C pass through the round holes 48, 72 and are bent along the surface direction around the round holes 48, 72, thereby being fixed to the rocker inner panel 40 side. Both end portions 74B and 74C of the connecting rod 74 are bent in an acute angle direction. Also with the above configuration, substantially the same operations and effects as the first embodiment described above can be obtained.

[Supplementary explanation of the embodiment]
In the first embodiment, as shown in FIG. 3 and the like, the connecting rod 52 passes through the round holes 48 and 50 and spans the upper wall portion 42 and the side wall portion 44. In the form, as shown in FIG. 6, the connecting rod 74 passes through the round holes 48, 72 and spans the upper wall portion 42 and the lower wall portion 46, but for example, the rocker inner panel (40) In order to prevent the cross-sectional deformation on the lower side, a connecting member that spans the side wall (44) and the lower wall (46) is provided, that is, a through hole (round hole 50) formed in the side wall (44) An intermediate portion is provided at a position that linearly connects the through hole (round hole 72) formed in the lower wall portion (46), and both end portions have the through hole (round holes 50, 72). Rocker inner by being bent along the surface direction around the through holes (round holes 50, 72). Panel (40) connecting member fixed to the side may be disposed.

  In the above embodiment, both end portions 52B, 52C, 74B, 74C of the connecting rods 52, 74 as connecting members and both end portions 62B, 62C of the connecting plate 62 are bent in an acute angle direction. Such a configuration is preferable, but both end portions of the connecting member may be bent in a perpendicular direction or an obtuse angle direction.

  Furthermore, although the case where the structure is applied to the rocker structure 30, 60, 70 has been described in the above embodiment, the structure may be applied to another vehicle structure such as a side member structure. Alternatively, other structures such as structures 80, 81, 82, 83, 84, 85, 86 shown in cross-sectional views in FIGS. 7A to 7G may be used. 7A to 7G, for convenience, the panel member is indicated by the same reference numeral 90, the broken line portion as a broken line is indicated by the same reference numeral 92, the flat plate portion is indicated by the same reference numeral 94, and the through hole Is indicated by the same reference numeral 96 and the connecting member is indicated by the same reference numeral 98. FIGS. 7A to 7C show an example in which the panel member 90 is formed in a bent shape having a single broken line portion 92, and two flat plate portions 94 are connected, FIG. 7D and FIG. 7 (E) shows an example in which the panel member 90 is formed in a bent shape having two broken line portions 92 and three flat plate portions 94 are connected. FIGS. 7 (F) and 7 (G) show that the panel member 90 has This is an example in which four flat plate portions 94 are formed in a bent shape having three broken line portions 92. Incidentally, in FIGS. 7A to 7G, both ends of the connecting member 98 are bent in an acute angle direction. However, even if the bending direction is changed in consideration of the direction in which the load acts, etc. Good.

  It should be noted that “possible to directly connect a virtual straight line” in claim 3 means that a virtual straight line can be directly connected without penetrating other parts as shown in the above-described embodiment and the like. ing.

It is a perspective view showing the rocker part structure concerning the 1st embodiment of the present invention, and its peripheral part in the state seen from the vehicle width direction inside. It is a longitudinal cross-sectional view which shows the procedure which attaches a connecting rod to the rocker inner panel of the rocker part structure which concerns on the 1st Embodiment of this invention. FIG. 2A shows a state where the connecting rod is inserted through the round hole. FIG. 2B shows a state where both ends of the connecting rod are bent. FIG. 3 is an enlarged vertical cross-sectional view showing a main part of the rocker part structure according to the first embodiment of the present invention (shown in a cross section along line 3-3 in FIG. 1). FIG. 3 is an enlarged longitudinal sectional view showing a state where a barrier collides with a lower part of a vehicle body side portion in the first embodiment of the present invention. It is a perspective view which shows the rocker part structure which concerns on the 2nd Embodiment of this invention, and its periphery part in the state seen from the vehicle width direction inner side. It is a longitudinal cross-sectional view which shows the principal part of the rocker part structure which concerns on the 3rd Embodiment of this invention. It is sectional drawing which shows the variation of the structure of this invention by the extension direction view of a broken line part.

Explanation of symbols

10 Car body side part 30 Rocker part structure (structure)
32 Rocker body 40 Rocker inner panel (panel member)
40A Upper flange (flat part)
40B Lower flange part (flat plate part)
40C bulging part 41A outer first ridgeline (polygonal line)
41B Outside second ridgeline (polyline)
42 Upper wall (wall, flat plate)
43 inner first ridgeline
44 Side wall (wall, flat plate)
45 Inner second ridgeline (polyline)
46 Lower wall (wall, flat plate)
48 round holes (through holes)
50 round holes (through holes)
52 Connecting rod (connecting member)
52A Intermediate part 52B, 52C Both end part 60 Rocker part structure (structure)
62 Connecting plate (connecting member)
62A Intermediate part 62B, 62C Both ends 64 Long hole (through hole)
66 Long hole (through hole)
70 Rocker structure (structure)
72 Round hole (through hole)
74 Connecting rod (connecting member)
74A Intermediate part 74B, 74C Both end parts 80, 81, 82, 83, 84, 85, 86 Structure 90 Panel member 92 Polyline part (polygonal line)
94 Flat part 96 Through hole 98 Connecting member

Claims (3)

A vehicle is formed in a cross-sectional hat shape that forms an inner portion in the vehicle width direction of the rocker body arranged at the lower end portion of the vehicle body side with the vehicle longitudinal direction as the longitudinal direction, and the vehicle width direction outer side is opened when the vehicle is viewed from the front A rocker inner panel comprising a bulging portion bulging inward in the width direction, and having a through-hole penetrating through any two of the three flat wall portions constituting the bulging portion;
The rocker inner panel side is provided with an intermediate portion disposed at a position connecting the through holes in a straight line and having both end portions penetrate the through holes and bend along the surface direction around the through holes. A connecting member fixed to
The rocker part structure characterized by having.   The rocker part structure according to claim 1, wherein both ends of the connecting member are bent in an acute angle direction. Formed into a bent shape with a single or multiple polygonal lines, a plurality of flat plate portions are connected, and a through hole penetrates a portion of either one of the flat plate portions that can directly connect a virtual straight line. A formed panel member;
An intermediate portion disposed at a position connecting the through holes in a straight line is provided, and both end portions pass through the through holes and are bent along the surface direction around the through holes to the panel member side. A connecting member to be fixed;
The structure characterized by having.

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