JP2009262684A - Vehicle body strength member structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mainly improve the surface rigidity and weight reduction. <P>SOLUTION: A vehicle body strength member structure comprises a cylindrical vehicle body strength member body part 25 extending and having at least a rectangular internal space 29. A partition wall part 36 partitioning the rectangular internal space 29 into a plurality of small spaces 31-35 is provided at least at a part of the inside of the rectangular internal space 29 in the axial direction of the vehicle body strength member body part 25. The partition wall part 36 is made to be a dividing wall part 46 which divides at least one of wall parts 41-44 composing the rectangular internal space 29 into at least two or more parts. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle body strength member structure.

  A vehicle such as an automobile is provided with an instrument panel in the front part of the vehicle interior. A metal vehicle body strength member is provided inside the instrument panel.

  The vehicle body strength member includes a vehicle body strength member main body that extends substantially in the vehicle width direction to a length of approximately the entire width of the vehicle body, and sides that are provided at both ends of the vehicle body strength member main body and can be attached to the left and right vehicle body panels. Mainly equipped with brackets.

  A stay for supporting the vehicle body strength member main body on the floor of the vehicle compartment is attached to an intermediate portion of the vehicle body strength member main body in the vehicle width direction. Furthermore, various brackets for attaching various parts installed in the instrument panel are welded and fixed to each part of the body strength member main body. The vehicle body strength member main body is usually constituted by an iron round pipe (cylindrical member) or the like.

  As such a vehicle body strength member, there is one in which at least a part of a vehicle body strength member main body (hereinafter referred to as a vehicle body strength member main body portion) is formed by an extrusion method (for example, Patent Document 1). reference).

  For example, as shown in FIG. 12, in Patent Document 1, the vehicle body strength member main body portion 1 by the extrusion method has a rectangular inner space 2 and has a rectangular tube shape extending in the vehicle width direction. . The rectangular tubular body strength member main body 1 has a uniform cross section in the vehicle width direction.

  And inside this square cylindrical vehicle body strength member main body 1, one of the two diagonals in the rectangular internal space 2 is diagonally connected to form two rectangular internal spaces 2. A partition wall portion 5 is provided for partitioning into triangular small spaces 3 and 4.

  Various brackets for attaching various parts and the like are fixed to the vehicle body strength member main body 1 by this extrusion method by spot welding or caulking.

The vehicle body strength member main body 1 of Patent Document 1 is assumed to be as short as a half width of the vehicle body, and has a configuration different from that using an iron round pipe.
Patent No. 3853112

  However, the vehicle body strength member structure described in Patent Document 1 has the following problems.

  That is, the rectangular tubular body strength member main body 1 by the above-described extrusion method receives the input 6 from the outside with its cross-sectional rigidity, but the cross-section of the vehicle body strength member main body 1 in order to increase the cross-sectional rigidity. Is increased, the vehicle body strength member main body 1 has a problem that surface rigidity is weakened. That is, even if the cross section becomes large, the surface 7 is locally weakened, so that the surface 7 that has received the input 6 is easily deformed as indicated by the phantom line.

  Then, the rectangular inner space 2 is formed into two triangular shapes by diagonally connecting one diagonal of the rectangular inner space 2 to the rectangular tubular body strength member main body 1 by the above-described extrusion method. A partition wall portion 5 for partitioning into the small spaces 3 and 4 is provided in the interior, but this partition wall portion 5 was not very effective against the above-described reduction in surface rigidity.

  Therefore, in the case of the vehicle body strength member main body 1 having the above structure, there is no means to increase the surface rigidity only by increasing the thickness. Therefore, an increase in weight due to thickening could not be avoided.

  Moreover, the rectangular tubular body strength member main body portion 1 formed by the extrusion method has a uniform cross section in the vehicle width direction, so that the partition wall portion 5 described above also exists in a portion other than necessary. Thus, the partition wall 5 is a factor of weight increase different from the above.

  In addition, since various brackets for attaching various parts are fixed to the vehicle body strength member main body 1 by spot welding or caulking, the cross section of the vehicle body strength member main body 1 is deformed. Or there is a high possibility that accuracy will be reduced. Therefore, in order to prevent such deformation of the cross section and a decrease in accuracy, the partition wall portion 5 described above is necessary.

  Further, the body strength member main body 1 of Patent Document 1 has a configuration that is unique because it is configured to be as short as a half width of the vehicle body and is different from the configuration using an iron round pipe. There is also a problem that handling is different from usual and difficult to handle.

  In addition to the above, new problems and other problems may occur in the process leading to the present invention. Such problems will be described in the embodiments of the present invention. The description in this column can be substituted. However, this column can be used if necessary.

  In order to solve the above-mentioned problem, the invention described in claim 1 is a vehicle body strength member structure having a cylindrical vehicle body strength member main body extending at least with a rectangular inner space, and the vehicle body strength member main body. A partition wall portion that partitions the rectangular internal space into a plurality of small spaces is provided at least in a part of the rectangular internal space in the axial direction, and the partition wall portion constitutes a rectangular internal space It is characterized in that at least one of the parts is a divided wall part that divides into at least two parts.

  According to a second aspect of the present invention, in the above, the partition wall portion is an inclined wall portion extending obliquely in a direction other than vertical with respect to at least one of the wall portions constituting the rectangular internal space. It is characterized by that.

  According to a third aspect of the present invention, in the above, the partition wall portion has a rectangular shape connecting substantially the center portions of the wall portions constituting the rectangular internal space, whereby the rectangular internal space is reduced. The rectangular wall portion is divided into a rectangular central small space having different surface orientations and four triangular outer small spaces surrounding the central small space.

  The invention described in claim 4 is characterized in that, in the above, the partition wall portion is formed of a resin resin wall portion.

  According to a fifth aspect of the present invention, in the above, the partition wall portion is provided with a protruding portion that protrudes from an end surface of the vehicle body strength member main body portion, and the protrusion portion is provided as another vehicle strength member main body portion. Is a connectable connecting portion.

  Each of the above is the minimum configuration necessary for exhibiting the required operational effects. Of course, the details of the configuration described above and configurations not described above have a degree of freedom. is there. Of course, matters that can be read from the description of the above configuration are included in the scope even if they are not specifically described. In addition, when a configuration other than the above is added, it is needless to say that the operational effects of the added configuration are added.

  According to invention of Claim 1, the following effects can be acquired by the said structure. That is, by providing a partition wall part that divides at least one of the wall parts constituting the rectangular internal space into at least two parts as the partition wall part, the surface rigidity of the wall part is reliably increased. Can do. Thereby, even when it is going to enlarge cross-sectional rigidity by enlarging the cross section of the rectangular internal space of a vehicle body strength member main-body part, it can prevent effectively that surface rigidity falls. Therefore, it is possible to obtain a partition wall portion effective for improving the surface rigidity. Therefore, it is not necessary to increase the thickness of the vehicle body strength member main body, and an increase in weight can be prevented. Of course, such a partition wall part effectively functions to prevent deformation of the cross section of the vehicle body strength member main body part and deterioration of accuracy. Further, by providing the partition wall part at least in a part of the axial direction in the rectangular internal space, it is possible to reduce the weight by providing the partition wall part only in a necessary part.

  According to invention of Claim 2, the following effects can be acquired by the said structure. That is, by making the partition wall portion an inclined wall portion, it is possible to disperse the input to the wall portion in a direction other than the perpendicular direction. Therefore, the surface rigidity of the wall portion can be reliably increased, and the above-described operational effects can be further improved.

  According to invention of Claim 3, the following effects can be acquired by the said structure. That is, by providing a rectangular wall portion that partitions the rectangular internal space into a rectangular central small space with different surface orientations and four triangular outer peripheral small spaces as the partition wall portion, Since each portion has the structure of claim 1 and claim 2 on each surface, the surface rigidity of each wall portion can be maximized, and the input to each wall portion can be input to other walls. It is possible to effectively disperse the parts. Thereby, the above-described operational effects can be further improved. Further, each of the four triangular outer peripheral small spaces surrounding the central small space is a highly rigid section having two orthogonal sides of the wall portion and a corresponding portion (wall portion) of the rectangular wall portion. Become. Therefore, it is possible to ensure sufficient fastening surface rigidity by separately attaching various parts, various brackets, and the like for each of the four triangular small outer peripheral spaces.

  According to invention of Claim 4, the following effects can be acquired by the said structure. That is, it is possible to reduce the weight by using a resin wall portion as the partition wall portion. Further, by using the resin wall portion, it can be easily provided only in a necessary portion, and further weight reduction can be achieved. In addition, it is possible to ensure required rigidity also as a resin wall part. Such a resin wall can be easily created by insert molding, outsert molding, or the like. Further, by embedding a nut or the like in the resin wall portion, it is possible to easily attach a component or the like.

  According to invention of Claim 5, the following effects can be acquired with the said structure. In other words, by connecting another body strength member main body portion with the protruding portion provided on the partition wall as a connection portion, a vehicle body strength member having a shape close to that of a general configuration using an iron round pipe is obtained. Therefore, handling can be facilitated. By setting the partition wall portion to the rectangular wall portion of claim 3, the plane orientation can be changed between the vehicle body strength member main body portion and another vehicle body strength member main body portion. As a result, it is possible to individually provide the necessary rigidity and characteristics to each body strength member main body.

  The present invention mainly aims to improve surface rigidity and reduce weight.

  Hereinafter, embodiments embodying the present invention will be described together with illustrated examples.

  The following examples have a close relationship with the above-described background art and problems to be solved by the invention. Therefore, when necessary, the descriptions are diverted to each other or necessary corrections are made. And can be diverted.

  1 to 11 show an embodiment of the present invention.

  “Configuration” First, the configuration will be described.

  A vehicle such as an automobile is provided with an instrument panel in the front part of the vehicle interior. A metal vehicle body strength member is provided inside the instrument panel.

  As shown in FIG. 1, the vehicle body strength member 11 is provided at a vehicle body strength member main body 13 that extends in the vehicle width direction 12 to a length of approximately the entire width of the vehicle body, and at both ends of the vehicle body strength member main body 13. And side brackets 14 that can be attached to left and right vehicle body panels (not shown). A stay 17 for supporting the vehicle body strength member main body 13 on the floor of the passenger compartment is attached to an intermediate portion of the vehicle body strength member main body 13 in the vehicle width direction 12. Further, a post bracket 18 for connecting the vehicle body strength member main body 13 to the front wall of the passenger compartment is attached to a portion of the vehicle body strength member main body 13 on the driver seat side. In addition to the above, various parts and various brackets are attached to the vehicle body strength member main body 13. Such a vehicle body strength member 11 is called a cross car beam or a steering support member.

  The above is the basic configuration of the vehicle body strength member 11. The vehicle body strength member 11 may be other than the cross car beam or the steering support member described above (although it is optimal).

  Here, the above-described vehicle body strength member main body 13 is roughly divided into three parts, that is, a driver seat side portion 21, a passenger seat side portion 22, and a center portion in terms of its function. In this case, since the central portion belongs to the passenger seat side portion 22, it is divided into two parts, a relatively short driver seat side portion 21 and a relatively long passenger seat side portion 22. Yes.

  The driver seat side portion 21 is roughly divided into an inner portion 23 and an outer portion 24 in terms of its function.

  Therefore, the inner portion 23 (of the driver's seat side portion 21), the outer portion 24, and the passenger seat side portion 22 constitute parts constituting the vehicle body strength member main body 13, that is, the vehicle body strength member main body portions 25 to 27. Become. In this case, each vehicle body strength member main-body part 25-27 is comprised so that it may become another component, respectively. The vehicle body strength member main body portions 25 to 27 are both extended in the vehicle width direction 12.

  In the vehicle body strength member 11 of this embodiment, as shown in FIGS. 2 and 3, the vehicle body strength member main body 13 has a cylindrical vehicle body strength extending with at least a rectangular internal space 29 (closed space). The member main body 25 is provided. In this case, the inner side portion 23 of the driver seat side portion 21 corresponds to this.

  The above is the configuration of the vehicle body strength member 11 of this embodiment.

  In contrast to the above configuration, the present embodiment has the following configuration.

  (1) A partition that partitions the rectangular internal space 29 into a plurality of small spaces 31 to 35 in at least part of the axial direction (vehicle width direction 12) inside the rectangular internal space 29 of the vehicle body strength member main body 25. A wall 36 is provided. And the partition wall part 36 is made into the division | segmentation wall part 46 which divides | segments at least 1 of the wall parts 41-44 which comprise the rectangular internal space 29 into at least 2 or more parts (individually divide). To do.

  (2) In the above, the partition wall portion 36 is an inclined wall portion 47 that extends obliquely in a direction other than vertical with respect to at least one of the wall portions 41 to 44 constituting the rectangular internal space 29. So that

  (3) In the above, as shown in FIG. 4, the partition wall portion 36 connects (inscribes) the substantially central portions (between the centers of the sides) of the wall portions 41 to 44 constituting the rectangular internal space 29. ) By presenting a rectangular shape, the rectangular internal space 29 is changed into a rectangular central small space (small space 31) having different surface orientations (different from the wall portions 41 to 44). And a rectangular wall portion that divides into four triangular outer peripheral small spaces (small spaces 32 to 35; hereinafter referred to as outer peripheral small spaces 32 to 35 as necessary) surrounding the central small space 31. 48.

  Here, in the rectangular internal space 29, each surface (each wall portion 41 to 44) is directed vertically and horizontally with reference to the vehicle longitudinal direction. Moreover, the center small space 31 is installed so that each surface may not face up and down, right and left.

  (4) In the above, the partition wall portion 36 is configured by the resin wall portion 49 made of resin.

  Such a resin wall portion 49 can be easily formed by insert molding, outsert molding, or the like. In the case of insert molding, an injection molding apparatus 51 as shown in FIG. 5 is used, and a metal cylindrical shape is formed into a molding space formed between the fixed mold 52 and the movable mold 53 of the injection molding apparatus 51. The vehicle body strength member main body portion 25 is set, and molten resin is injected, so that a resin-made resin wall portion 49 is integrally formed in the rectangular internal space 29 of the vehicle body strength member main body portion 25. . At this time, by inserting a fastener 54 such as a nut into the resin wall portion 49 at the same time, various parts and brackets (in this case, the passenger seat side portion 22) can be bolted. Such a fastener 55 (see FIG. 8) can be easily attached. In addition, the resin wall portion 49 can be provided over the entire region in the axial direction (vehicle width direction 12) of the vehicle body strength member main body portion 25, or with respect to a part of the axial direction (vehicle width direction 12). It can also be provided. In this case, it is provided partially with respect to a part in the axial direction.

  Here, the vehicle body strength member main body 25 having a metal cylindrical shape can be formed by, for example, an extrusion method or a die-cast method. In this case, it is preferable to use a light metal such as aluminum, an aluminum alloy, or a magnesium alloy for the vehicle body strength member main body portion 25 in order to satisfy both contradictory functions of securing rigidity and reducing weight. .

  (5) In the above description, as shown in FIG. 2, the partition wall portion 36 is provided with a protruding portion 56 that protrudes from the end surface of the vehicle body strength member main body portion 25. And let the protrusion part 56 be the connection part 57 which can connect another vehicle body strength member main-body part 27. FIG.

  Here, the protruding portion 56 is formed by extending the partition wall portion 36 as it is to the outside of the vehicle body strength member main body portion 25.

  As other matters than the above, for example, as shown in FIG. 4, the vehicle body strength member main body 25 constituting the inner portion 23 has a plurality of uniform cross sections integrally having a plurality of closed spaces 61 and 62 on the rear side. A continuous tubular member 63 or the like may be used. Such a multi-tubular member 63 can be produced by, for example, the above-described extrusion method or die casting method. The portions of the plurality of closed spaces 61 and 62 can be used for securing further rigidity and attaching various parts and brackets.

  Further, the vehicle body strength member main body 25 has a wall portion 65 that constitutes an accommodation space 64 having an open cross section above the upper wall portion 44 that constitutes the rectangular internal space 29. The wall portion 65 has an upright portion that is substantially flush with the front wall portion 41 and a parallel portion that is parallel to the upper wall portion 44. The wall 65 opens the accommodation space 64 to the rear side and extends to the front side at a uniform height. In the housing space 64, for example, a harness module formed by modularizing a so-called wire harness routed in the vehicle width direction along the vehicle body strength member main body 13 (such as an upper portion thereof) or a wire harness formed as a substrate. A harness substrate or the like is suitably accommodated. In this case, the height of the accommodation space 64 is set to a low value according to the thickness of the harness module or the harness substrate.

  Further, as shown in FIG. 1, the outer portion 24 (vehicle body strength member main body portion 26) of the driver seat side portion 21 and the passenger seat side portion 22 (vehicle body strength member main body portion 27) are made of aluminum, aluminum alloy, A square pipe material made of light metal such as magnesium alloy or light alloy is used.

  Here, the outer portion 24 of the driver's seat side portion 21 has a relatively large outer diameter and / or outer shape that can be fitted and fixed in the rectangular inner space 29. On the other hand, as the passenger seat side portion 22, one having a relatively small inner diameter and / or inner shape that can be externally fitted and fixed to the protruding portion 56 (connecting portion 57) of the rectangular wall portion 48 is used.

  In response to the difference in the orientation and the size of the rectangular inner space 29 and the rectangular wall portion 48, the outer portion 24 of the driver seat side portion 21 and the passenger seat side portion 22 are: As described above, the thickness is different and the orientation of the surface is different. In addition, a wall portion 67 similar to the wall portion 65 may be provided on the outer portion 24 of the driver seat side portion 21 and at least one upper portion of the passenger seat side portion 22 so as to form a similar accommodation space. good.

  In FIG. 9, reference numerals 68 and 69 denote front and rear column mounting brackets for mounting a steering column (not shown).

  [Operation] Next, the operation of this embodiment will be described.

  In particular, although not shown, the outer portion 24 of the driver seat side portion 21 is connected to the inner portion 23 of the driver seat side portion 21, and the inner side of the driver seat side portion 21 as shown in FIGS. By connecting the passenger seat side portion 22 to the portion 23, the vehicle body strength member main body 13 (vehicle body strength member 11) as shown in FIG. 1 is assembled.

  At this time, the outer portion 24 of the driver seat side portion 21 is fitted into and fixed to the rectangular inner space 29 of the inner portion 23. Further, the passenger seat side portion 22 is externally fitted to the protruding portion 56 (connecting portion 57) of the rectangular wall portion 48 of the inner side portion 23, and is fastened and fixed by a fastener 55 such as a bolt.

  The vehicle body strength member 11 assembled in this way is installed at the front portion of the passenger compartment, and is attached to left and right vehicle body panels (not shown) using side brackets 14 provided in advance at both ends of the vehicle body strength member main body 13. Further, an intermediate portion of the vehicle body strength member main body 13 in the vehicle width direction 12 (the inner portion 23 of the driver seat side portion 21) is attached to the floor portion of the passenger compartment by the stay 17. Further, a portion on the driver's seat side of vehicle body strength member main body 13 (inner side portion 23 of driver's seat side portion 21) is connected to the front wall of the passenger compartment via post bracket 18.

  Further, as shown in FIG. 9, a steering wheel (not shown) is provided below the driver seat side portion of the vehicle body strength member main body 13 (the inner portion 23 of the driver seat side portion 21) via front and rear column mounting brackets 68 and 69. A column is installed.

  Further, a harness module, a harness substrate, and the like are accommodated in the accommodation space 64.

  Finally, the vehicle body strength member main body 13 is covered and hidden by the instrument panel so that it cannot be seen from the outside.

  According to this embodiment, the following operational effects can be obtained.

  (1) In a vehicle body strength member structure having a cylindrical vehicle body strength member main body 25 extending with at least a rectangular internal space 29, an axial direction inside the rectangular internal space 29 of the vehicle body strength member main body 25 is provided. At least a part is provided with a partition wall portion 36 that partitions the rectangular internal space 29 into a plurality of small spaces 31 to 35, and the partition wall portion 36 is at least one of the wall portions 41 to 44 constituting the rectangular internal space 29. Since one is divided into at least two portions, the divided wall portion 46 can provide the following operational effects.

  That is, as the partition wall portion 36, by providing the partition wall portion 46 that divides at least one of the wall portions 41 to 44 constituting the rectangular internal space 29 into at least two portions, the wall portions 41 to 41 are provided. The surface rigidity of 44 can be reliably increased. Thereby, even when the cross section of the rectangular internal space 29 of the vehicle body strength member main body 25 is enlarged to increase the cross section rigidity, it is possible to effectively prevent the surface rigidity from being lowered. Therefore, the partition wall part 36 effective for improving the surface rigidity can be obtained. Therefore, it is not necessary to increase the thickness of the vehicle body strength member main body 25, and an increase in weight can be prevented. Of course, such a partition wall portion 36 effectively functions to prevent deformation of the cross section of the vehicle body strength member main body portion 25 and deterioration of accuracy. Further, by providing the partition wall portion 36 in at least a part of the rectangular internal space 29 in the axial direction, it is possible to reduce the weight by providing the partition wall portion 36 only in a necessary portion. Become.

  (2) The partition wall 36 is formed as an inclined wall 47 that extends obliquely in a direction other than vertical with respect to at least one of the walls 41 to 44 constituting the rectangular internal space 29. The following effects can be obtained. That is, by making the partition wall portion 36 the inclined wall portion 47, the input to the wall portions 41 to 44 can be dispersed in a direction other than the perpendicular direction, as shown in FIG. Therefore, the surface rigidity of the walls 41 to 44 can be reliably increased, and the above-described operational effects can be further improved.

  (3) The partition wall 36 has a rectangular shape that connects substantially the central portions of the wall portions 41 to 44 constituting the rectangular internal space 29, so that the rectangular internal space 29 has a different surface orientation. By forming the rectangular wall portion 48 into the rectangular central small space 31 and the four triangular outer peripheral spaces 32 to 35 surrounding the central small space 31, the following operational effects can be obtained. it can.

  That is, as the partition wall portion 36, a rectangular wall portion 48 that partitions the rectangular internal space 29 into a rectangular central small space 31 and four triangular outer small spaces 32 to 35 having different surface orientations is provided. As a result, the vehicle body strength member main body 25 has the structures (1) and (2) on each surface, so that the surface rigidity of each of the wall portions 41 to 44 can be maximized, It becomes possible to effectively disperse the input to each of the wall portions 41 to 44 to the other wall portions 41 to 44. Thereby, the above-described operational effects can be further improved.

  Further, as shown in FIG. 11, the four triangular outer peripheral small spaces 32 to 35 surrounding the central small space 31 are respectively formed by two orthogonal sides of the wall portions 41 to 44 and the rectangular wall portion 48. It becomes a section with high rigidity having a corresponding portion (wall section) (high rigidity section). Therefore, as shown in FIG. 9, various parts, various brackets (post bracket 18 and front and rear column mounting brackets 68 and 69), etc. are provided for each of the four triangular small outer spaces 32 to 35. By separating and mounting (parts for mounting components), it is possible to ensure sufficient fastening surface rigidity.

  (4) Since the partition wall portion 36 includes the resin wall portion 49 made of resin, the following operational effects can be obtained. That is, it is possible to reduce the weight by using the resin wall 49 as the partition wall 36. Further, by using the resin wall portion 49, it can be easily provided only in a necessary portion, and further weight reduction can be achieved. Note that the resin wall portion 49 can also ensure necessary rigidity. Such a resin wall portion 49 can be easily formed by insert molding, outsert molding, or the like. In addition, by embedding a fastener 54 such as a nut in the resin wall portion 49, it is possible to easily attach components and the like.

  (5) The partition wall 36 is provided with a protrusion 56 that protrudes from the end face of the vehicle body strength member main body 25, and the protrusion 56 is connected to another connection body 57 that can connect another vehicle body strength member main body 27. As a result, the following effects can be obtained. That is, a vehicle body having a shape close to that of a general configuration using an iron round pipe by connecting another vehicle body strength member main body portion 27 with the protruding portion 56 provided on the partition wall portion 36 as a connecting portion 57. The strength member 11 can be used, and handling can be facilitated. In addition, by making the partition wall portion 36 the rectangular wall portion 48 of (3), the surface orientation can be changed between the vehicle body strength member main body portion 25 and another vehicle body strength member main body portion 27. . Thereby, it is possible to individually give each vehicle body strength member main body 25 the necessary rigidity, characteristics, and the like.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in a range and accuracy recognized by common sense.

1 is an overall perspective view of a vehicle body strength member structure according to an embodiment of the present invention. It is a perspective view of the vehicle body strength member main-body part used for FIG. FIG. 3 is a side view of FIG. 2. FIG. 4 is a partially enlarged view of FIG. 3. It is explanatory drawing which shows the manufacturing means of FIG. It is a perspective view which shows the assembly state of FIG. FIG. 7 is a side view of FIG. 6. It is sectional drawing along the AA line of FIG. It is a figure which illustrates the attachment state of the bracket with respect to a vehicle body strength member main-body part. It is a figure similar to FIG. 4 which shows the state by which an input is disperse | distributed. It is a figure substantially the same as FIG. 4 which shows the state of the highly rigid division formed by a rectangular wall part. It is sectional drawing of the vehicle body strength member structure concerning a prior art example.

Explanation of symbols

12 Vehicle width direction (axial direction)
25 Body strength member body 27 Another body strength member body 29 Internal space 31 Small space (central small space)
32 small space (periphery small space)
33 Small space (periphery small space)
34 Small space (peripheral small space)
35 small space (periphery small space)
36 partition wall part 41 wall part 42 wall part 43 wall part 44 wall part 46 division wall part 47 inclined wall part 48 rectangular wall part 49 resin wall part 56 protrusion part 57 connection part

Claims (5)

In the vehicle body strength member structure having a cylindrical vehicle body strength member main body extending with at least a rectangular internal space,
A partition wall that partitions the rectangular internal space into a plurality of small spaces is provided at least in the axial direction in the rectangular internal space of the vehicle body strength member main body,
A vehicle body strength member structure in which the partition wall portion is a divided wall portion that divides at least one of the wall portions constituting the rectangular internal space into at least two portions.   The said partition wall part was made into the inclined wall part extended diagonally toward directions other than perpendicular | vertical with respect to at least 1 of the wall part which comprises rectangular internal space. Body strength member structure. By exhibiting a rectangular shape connecting the substantially central portion of each wall portion constituting the rectangular internal space, the partition wall portion,
The rectangular internal space is a rectangular wall section that partitions a rectangular central small space with different surface orientations into four triangular outer peripheral small spaces surrounding the central small space. The vehicle body strength member structure according to claim 1 or 2.   The vehicle body strength member structure according to any one of claims 1 to 3, wherein the partition wall portion is formed of a resin resin wall portion.   The partition wall is provided with a protrusion that protrudes from an end surface of the vehicle body strength member main body, and the protrusion is a connecting portion that can connect another vehicle strength member main body. The vehicle body strength member structure according to any one of claims 1 to 4.

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