JP2005231507A - Strength member structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strength member structure for a vehicle ensuring required strength and allowing high freedom of layout of other on-vehicle instruments. <P>SOLUTION: A cross car beam 1 connecting left and right A pillar parts 70a, 70b is constituted by bonding first to third strength members 10, 20, 40 by welding or bolt-fastening respectively. In the second strength member 20 positioned at a central part of the vehicle, a beam cross section shape is made to a closed cross section and an audio instrument and an air conditioning duct can be arranged on an opening and a wall surface forming the cross section adjacent thereto. Accordingly, the closed cross section shape can be changed in response to layout of these other parts and the instrument and freedom of the layout can be enhanced. Further, left and right first and third strength members 10, 40 are designed at the optimum in response to required strength respectively to realize miniaturization and light weight. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle strength member structure.

Conventionally, an air-conditioning duct is inserted into an open section space of a structural member having an open section as a cross car beam (hereinafter referred to as CCB) which is a strength member in a vehicle instrument panel (hereinafter referred to as an instrument panel), and then a steering support member. By closing the open cross section with other parts such as the above, there is a structure that finally secures strength as a closed cross section structure (for example, see Patent Document 1).
JP 2002-87047 A

  However, in the above prior art, the structural member having an open cross section is integrally formed and has a shape extending linearly across the left and right sides of the vehicle, so that the audio device is concentrated on the central portion of the vehicle. Further, there is a problem that the degree of freedom in layout of the display device, the air conditioning duct, and the like is hindered.

  In view of the above points, an object of the present invention is to provide a strength member structure for a vehicle that secures necessary strength and has a high degree of freedom in layout of other in-vehicle devices.

  In order to achieve the above object, the invention described in claim 1 is a vehicle strength member structure (1) that connects two structural members (70a, 70b) of a vehicle body in a longitudinal direction, and includes a first strength member ( 10, 11, 12, 13), a second strength member (20, 21, 22) and a third strength member (40, 41, 42, 43), and a first strength member, a second strength member and The third strength members are combined in this order.

  According to the present invention, as the strength member structure for connecting the two structural members of the vehicle body, the structure in which the three strength members are sequentially coupled in the longitudinal direction is provided, so that another part is to be arranged between the two structural members. Sometimes, among the first to third strength members, the shape of a predetermined strength member can be changed to a desired shape different from other strength members, thereby preventing interference between the strength member structure and other parts. Can do. Therefore, it is possible to increase the degree of freedom in arranging other components while securing the necessary strength by combining the first to third strength members.

  Thereby, it is possible to design a shape that satisfies the strength requirements of each part, and it is possible to achieve miniaturization and weight reduction by miniaturization.

  Moreover, since another material suitable for the required strength can be selected as the material of the three strength members, it is possible to reduce the weight according to each part.

  The invention described in claim 2 is characterized in that the second strength member disposed in the central portion in the longitudinal direction has an open cross-sectional shape perpendicular to the longitudinal direction.

  According to this invention, since the cross-sectional shape of the second strength member at the center in the longitudinal direction is an open cross-sectional shape, that is, a shell shape with respect to the longitudinal direction, other parts are arranged at the position of the second strength member. When trying to do so, it becomes possible to store other parts in the opening having an open cross-sectional shape, and space can be saved.

  In addition, as described in claim 3, at least one of the first strength member and the third strength member arranged on the left and right in the longitudinal direction of the second strength member has a cross-sectional shape orthogonal to the longitudinal direction as an open section. can do. This open cross-sectional structure can be employed when the required strength is relatively low. Further, the strength member having the open cross section can realize space saving by accommodating other components in the opening.

  According to a fourth aspect of the present invention, at least one of the first strength member and the third strength member arranged on the left and right in the longitudinal direction of the second strength member has a closed cross section as a cross-sectional shape orthogonal to the longitudinal direction. can do. This closed cross-sectional structure can be employed when the required strength is relatively high, and the strength can be improved as the strength member structure.

  According to a fifth aspect of the present invention, the two structural members are the two left and right pillars of the front portion of the vehicle body, and the first strength member has a steering mounting surface (11c, 120a) in the longitudinal direction, and has a first strength. When the member is disposed on the driver's seat side, the surface direction of the steering mounting surface and the axial direction of the vehicle steering shaft (60) are in a parallel relationship.

  According to the present invention, since the steering mounting surface provided in the longitudinal direction of the first strength member disposed on the driver's seat side is parallel to the axial direction of the steering shaft, the steering shaft is directly attached to the steering mounting surface. can do. Therefore, it is not necessary to use a steering support member having a complicated shape, and the steering shaft can be easily attached to the steering attachment surface.

  According to a sixth aspect of the present invention, the two structural members are the two left and right pillars of the front portion of the vehicle body, and the first and third strength members have the flanges (126, 127, 424, 425), respectively. And when the first strength member is disposed on the driver's seat side, the first and third strength members are coupled to the pillar via the flange.

  According to the present invention, the first and third strength members are attached to the pillars of the vehicle body via the flanges provided on the first and third strength members without using separate parts such as separate brackets. Can be combined.

  The invention described in claim 7 is characterized in that the second strength member includes at least one brace portion (30, 31). Thereby, a brace part can be fixed to a vehicle body and the strength as a strength member structure can be improved.

  According to the eighth aspect of the present invention, the second strength member has a contact surface (parallel to the surface of the casing of the in-vehicle component (101, 102, 102b, 102d, 200) mounted on the vehicle in the longitudinal direction ( 20a, 20b, 21a, 21b, 22a) are formed. Thereby, the housing | casing of vehicle-mounted components can be arrange | positioned so that it may contact or adjoin to the contact surface of a 2nd strength member, and it becomes possible to save space, without providing a useless space.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing an outline of a center shell CCB1 as a vehicle strength member structure according to the first embodiment. In FIG. 1, the horizontal direction in the drawing is shown as the longitudinal direction. 2A is a cross-sectional view taken along line AA in FIG. 1, FIG. 2B is a cross-sectional view taken along line BB in FIG. 1, and FIG. 2C is a cross-sectional view taken along line CC in FIG. In FIG. 2, the same direction in each cross section is indicated by an alternate long and short dash line.

  The center shell CCB1 of the first embodiment includes a first strength member 10, a second strength member 20, and a third strength member 40. The first strength member 10 has a closed cross-sectional shape with a hexagonal cross section, and a side bracket 50a is coupled to the right side by welding, bolts, or rivet fastening. A second strength member 20 is coupled to the left side of the first strength member 10. The right side bracket 50a is coupled to the right pillar (right A pillar) 70a at the front of the vehicle by a bolt or the like. In addition, although the 1st strength member 10 can use what was processed by extruding Al alloy, the material may be Fe or Mg alloy.

  Further, a steering support member 63 is coupled to an appropriate portion of the first strength member 10 by welding or the like. When the first strength member 10 is arranged on the driver's seat side (the right side in the drawing in the example of FIG. 1), the steering shaft 60 of the vehicle is positioned in the vicinity of the first strength member 10. Therefore, the steering shaft 60 is supported by the first strength member 10 by coupling the steering side bracket 61 provided on the steering shaft 60 and the steering support member 63 provided on the first strength member 10 with a bolt 62a or the like. . The steering support member 63 is processed by press molding.

  The second strength member 20 is coupled to the first strength member 10 on the left side of the first strength member 10 by welding, bolts, or rivet fastening. Braces 30 and 31 are formed on both sides of the second strength member 20 so as to extend downward. These brace parts 30 and 31 can fix center shell CCB1 itself to a vehicle body by fixing a lower tip to a vehicle body (not shown).

  The shape of the second strength member 20 in the width direction (longitudinal direction) is an open cross section (shell shape) as the beam cross section. In the first embodiment, as shown in FIG. 2B, the air-conditioning duct 101, which is a resin-shaped product, is placed on the upper surface 20b of the second strength member 20, and a shell-shaped opening is provided. The housing of the audio device 200 is inserted and arranged. At this time, the outer wall of the housing of the audio device 200 is in a state of being substantially parallel to the shell-shaped surface 20a and is disposed in close proximity. That is, the shell shape of the second strength member 20 can be designed in a desired shape according to the arrangement form of the air conditioning duct 101 and the audio device 200. That is, the air conditioning duct 101 and the audio device 200 correspond to in-vehicle parts.

  In FIG. 2B, a circle 500 indicated by a broken line of the shell-shaped portion indicates a case where the second strength member 20 is formed by a round pipe (closed section) instead of an open section shape as a comparative example. As described above, in the round pipe shape, the audio device 200 and the air conditioning duct 101 cannot be disposed so as to approach each other due to interference with the round pipe, and space saving cannot be realized.

  As described above, in the second strength member 20 of the first embodiment, it is possible to ensure the degree of freedom of arrangement of other components and in-vehicle devices arranged at the center in the width direction of the vehicle and realize space saving. it can.

  On the left side in the width direction of the second strength member 20, the third strength member 40 is coupled to the second strength member 20 by welding, bolts, or rivet fastening. The third strength member 40 has a closed cross-sectional shape with a hexagonal cross section, and a side bracket 50b is joined to the left side by welding or bolt fastening. In addition, the 3rd strength member 40 can use the thing processed by extrusion-molding Al alloy similarly to the 1st strength member 10. FIG.

  The left side bracket 50b is coupled to the left pillar (left A pillar) 70b at the front of the vehicle. By coupling the left and right A pillars 70a and 70b with the left and right side brackets 50a and 50b of the center shell CCB, the space between the A pillars 70a and 70b, which are structural members of the vehicle, is reinforced by the center shell CCB.

  As described above, since the first strength member 10 disposed on the driver's seat side holds the steering that is a heavy object, the required strength is relatively high. Therefore, it is necessary to ensure the strength by increasing the outer dimension of the first strength member 10 in the beam cross section or increasing the thickness. On the other hand, the third strength member 40 disposed on the passenger seat side is required to have strength to withstand the explosion reaction force of the passenger seat airbag, but not as strong as the first strength member 10 on the driver seat side. . As described above, the strength requirements of the respective portions are different in each of the first to third strength members 10, 20, and 40, which are components of the center shell CCB1. Therefore, it is desirable to select the shape, size, and material of each part so as to satisfy the strength requirements according to each part and further according to the type of vehicle to be mounted.

  In the first embodiment, as shown in FIGS. 2A and 2C, the dimension of the hexagonal cross section of the first strength member 10 is made relatively large to satisfy the high required strength, while the required strength is obtained. The third strength member 40 having a low height has a relatively small hexagonal cross-sectional dimension. This ensures the required strength and saves space by downsizing, weight reduction, and downsizing compared to the case of forming the vehicle with the same cross-sectional dimension across the width direction of the vehicle. Can be realized.

  The beam cross-sectional shapes of the first strength member 10 and the third strength member 40 can be changed to a shape other than the hexagon as in the first embodiment, and a shape capable of obtaining appropriate strength, for example, a round shape, an eight shape, and the like. A square etc. can be selected. Moreover, it is good also as an open cross-sectional shape according to intensity | strength requirements besides a closed cross-sectional shape.

(Second Embodiment)
Next, the center shell CCB of the second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a front view showing an outline of the center shell CCB as the vehicle strength member structure of the second embodiment, and similarly to FIG. 4A is a cross-sectional view taken along line AA in FIG. 3, FIG. 4B is a cross-sectional view taken along line BB in FIG. 3, and FIG. 4C is a cross-sectional view taken along line CC in FIG. In addition, about the component similar to the said 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The center shell CCB of the second embodiment includes a first strength member 11, a second reinforcing member 21, and a third reinforcing member 41 that are coupled in order from the driver seat side to the passenger seat side.

  The first strength member 11 has a polygonal shape having two hexagons in which the beam cross section is coupled on one side, and a surface corresponding to the coupled side has a closed cross-sectional shape having a function of a reinforcing bridge. Yes. The first strength member 11 can be made by extrusion molding of an Al alloy as in the first embodiment, but the material may be Fe or Mg alloy.

  Further, the first strength member 11 of the second embodiment is arranged such that a surface 11c corresponding to one side of the polygonal cross section is a steering mounting surface, and the steering mounting surface and the axial direction of the steering shaft 60 are parallel to each other. Then, the steering mounting surface and the steering shaft 60 are directly attached via the steering side bracket 61, thereby reducing the number of parts without providing a separate steering support member and directly using the first strength member 11. The steering shaft 60 can be supported.

  In the second strength member 21 of the second embodiment, the beam cross-sectional shape formed by casting or die casting has an open cross-sectional shape as in the first embodiment, and the second strength member 21 is formed on the left side of the first strength member 11 on the left side. The first strength member 11 is coupled with welding, bolts, or rivet fastening. However, they differ in the following points. The shell shape which is an open cross section of the second strength member 21 has a U-shape, and the audio device 200 including a casing parallel to the inner surface of the U-shape portion is disposed so as to fit into the U-shape portion. . The casing of the air conditioning duct 101 is disposed in parallel with and close to one surface 21 b of the second reinforcing member 21.

  In this way, the shell shape of the second strength member 21 can be made into various shapes in consideration of the arrangement relationship of other in-vehicle devices or components.

  The second strength member 21 includes a brace portion 30 on the right side end (first strength member 11 side) on the driver's seat side, and a brace portion on the left end portion (third strength member 41 side) on the passenger seat side. Not provided. That is, it is possible to have one brace part according to the strength requirements on the vehicle side. Furthermore, it is possible to eliminate the brace part.

  The third strength member 41 coupled to the left side (passenger seat side) of the second strength member 21 has an open cross-sectional shape in which a press-formed beam cross-sectional shape is a U-shape. The air conditioning duct 101 and the wire harness can be easily routed on the inner side of the open section, and space saving can be realized. In addition, by setting the U-shaped opening direction of the third strength member 41 to be different from the U-shaped opening direction of the second strength member 21, it is possible to save space when installing other in-vehicle devices. I have to.

(Third embodiment)
Next, a center shell CCB according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a front view showing an outline of a center shell CCB as the vehicle strength member structure of the third embodiment. FIG. 6 is a top view schematically showing the center shell CCB as viewed from above the vehicle. As in FIGS. 1 and 3, these show the left-right direction of the paper as the longitudinal direction. 7A is a cross-sectional view taken along the line AA in FIG. 5, FIG. 7B is a cross-sectional view taken along the line BB in FIG. 5, and FIG. 7C is a cross-sectional view taken along the line CC in FIG. In addition, about the component similar to the said 1st and 2nd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The center shell CCB of the third embodiment includes a first strength member 12, a second reinforcing member 22, and a third reinforcing member 42, which are coupled in order from the driver seat side to the passenger seat side.

  The first strength member 12 has a shape in which a U-shaped cross-section 121 having a beam cross-sectional shape that is an open cross-section and a closed cross-section 125 are joined so as to share the bottom 120 as a steering mounting surface. The U-shaped cross-sectional portion 121 is formed by a wall portion 122 erected in the vertical direction from the bottom portion 120 and a wall portion 123 erected in parallel to the wall portion 122. The U-shaped cross section 121 can easily accommodate the air-conditioning duct 102 as a vehicle-mounted part, and space saving can be realized. If the storage space for the air conditioning duct 102 can be secured, the cross-sectional shape of the opening may be other shapes such as an L shape or a U shape in addition to the U shape.

  The closed cross section 125 forms a closed cross section 125 by connecting a wall 123 shared with the U-shaped cross section 121 and the other wall 124. The surface 120a of the bottom 120 of the closed cross section 125 and the axial direction of the steering shaft 60 are arranged in parallel. The bottom portion 120 is coupled to the steering side bracket 61 fixed to the steering shaft 60 by a bolt 62a and the like. The cross-sectional shape of the closed cross-section portion 125 may be a round pipe shape or an irregular polygon shape as long as it satisfies the strength requirements required for the first strength member 12, and is not necessarily a closed cross-sectional shape. May be.

  Further, a flange 126 is integrally formed at the tip of the shared wall 123. As shown in FIG. 6, the body side provided on the flange 126 and the driver side A-pillar 70a. The side bracket 51a is coupled with a bolt 128 or the like. A flange 127 is integrally formed at one end of the bottom 120, and the flange 127 and the body side side bracket 51a are coupled by a bolt 129 or the like.

  As described above, the storage space for the air-conditioning duct 102 can be secured by the U-shaped cross section 121 and the strength of the center shell CCB can be secured by the closed cross section 125.

  In the second strength member 22 of the third embodiment, the beam cross-sectional shape formed by casting or die casting is an open cross-sectional shape as in the first and second embodiments, and on the left side of the first strength member 12. The first strength member 12 is coupled by welding, bolts, or rivet fastening.

  The air conditioning duct 102 in which the blowout duct 110 to the vehicle interior is formed can be arranged on one of the wall surfaces 22a constituting the open section of the second strength member 22. In addition, it can be set as arbitrary shapes so that interference with the air-conditioning duct 102 etc. may be avoided.

  In addition, the 2nd strength member 22 is provided with the brace part 30 in the right end part (1st strength member 12 side) by the side of a driver's seat similarly to the said 2nd Embodiment. Moreover, it is also possible to eliminate a brace part according to the strength requirements on the vehicle side.

  The third strength member 42 coupled to the left side (passenger seat side) of the second strength member 22 has an open cross-section 421 whose beam cross-section is U-shaped by the parallel wall portions 422 and 423 erected from the bottom 420. Is formed. The air conditioning duct 102 and the wire harness can be easily arranged inside the open section 421, and space saving can be realized.

  Further, the third strength member 42 is integrally formed with flanges 424 and 425 at the bottom 420 and the tip of the wall 423, respectively. The flange portions 424 and 425 are coupled to a body side side bracket 51b provided in the pillar portion 70b on the passenger seat side by bolts 426 and 427, for example.

  The combination of the body side side bracket 51a provided on the driver side pillar portion 70a and the flanges 126 and 127 of the first strength member 12, and the body side provided on the A pillar portion 70b on the passenger seat side. The center shell CCB is fixed to the left and right A-pillar portions 70a and 70b, which are structural members of the vehicle, by the coupling of the side bracket 51b and the flange portions 424 and 425 of the third strength member 42. Accordingly, in the third embodiment, the center shell CCB can be fixed to the vehicle body without providing the side bracket as in the first and second embodiments.

  As a method of fixing the center shell CCB to the vehicle body, brackets having the same shape as the body side brackets 51a and 51b are respectively fixed to the first and third strength members 12 and 42 by welding or the like. You may couple | bond with the A pillar part 70a, 70b with a volt | bolt etc.

  In the third embodiment, the air conditioning duct 102 has the following features that are different from the air conditioning duct 101 of the first and second embodiments. That is, at the left and right side portions of the air conditioning duct 102, the side blowing portions are bent toward the rear of the vehicle. In order to make this bending structurally possible, the center shell CCB itself does not have a length up to the vicinity of the A pillar portions 70a and 70b, but as shown in FIG. With a short length. And as above-mentioned, fixation to the A pillar part 70a, 70b is enabled by lengthening the body side side brackets 51a, 51b fixed to the A pillar part 70a, 70b side. Accordingly, it is possible to form a smooth bent shape of the air conditioning duct 102, and the air conditioning duct 102 can be accommodated in the center shell CCB without impairing the duct performance.

As described above, also in the third embodiment, the center shell CCB as the vehicle strength member structure is constituted by the three parts of the first, second and third strength members 12, 22, and 42, and the first In addition, the third strength members 12, 22, and 42 are all formed in an open cross-sectional shape, and the air-conditioning duct 102 having both sides bent can be accommodated in the third strength members 12, 22, and 42, so that space can be saved easily.
(Fourth embodiment)
Next, a center shell CCB according to a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a front view showing an outline of the center shell CCB as the vehicle strength member structure of the fourth embodiment. FIG. 9 is a top view schematically showing the center shell CCB as viewed from above the vehicle. Similar to FIGS. 1, 3, 5, and 6, these are shown with the left-right direction on the paper as the longitudinal direction. FIG. 10A is a cross-sectional view taken along the line AA in FIG. FIG. 10B is a cross-sectional view taken along the line BB in FIG. 8 and is the same as FIG. 7B. FIG. 10C is a cross-sectional view taken along the line CC of FIG. In addition, about the component similar to the said 1st thru | or 3rd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The center shell CCB of the fourth embodiment includes a first strength member 13, a second reinforcement member 22, and a third reinforcement member 43 that are coupled in order from the driver seat side to the passenger seat side. In addition, since the 2nd strength member 22 of the 4th embodiment is the same structure as the 2nd strength member 22 in 3rd Embodiment, description is abbreviate | omitted.

  The center shell CCB of the fourth embodiment includes an air conditioning duct in which three component air conditioning ducts 102a, 102b, and 102c are assembled together. The shape of the assembled air conditioning duct is the same as that of the air conditioning duct 102 in the third embodiment.

  The first strength member 13 includes a closed cross section 121a having a rectangular beam cross section. The closed cross-section portion 121 a is configured by being surrounded by a bottom portion 120, two parallel wall portions 122 and 123 erected from the bottom portion 120, and an upper surface portion 128 that connects the wall portions 122 and 123.

  The closed section 121a accommodates a divided component air conditioning duct 102a. That is, the component air-conditioning duct 102a is inserted into the closed cross-sectional portion 121a of the first strength member 13 from the A pillar 70a side, and can be assembled to the first strength member 13.

  As long as the storage space for the component air conditioning duct 102a can be secured, the closed cross-sectional shape may be a round pipe shape or an irregular polygonal shape in addition to the rectangular shape.

  Further, the first strength member 13 includes flange portions 126 and 127. The collar portion 126 is provided at a tip portion formed by extending one wall portion 123 forming the closed section 121a from the closed section 121a. As shown in FIG. The body side side bracket 51a provided in the pillar portion 70a is coupled by bolts 127, 128 and the like.

  Further, the flange 127 is formed integrally with the tip of the bottom 120 of the first strength member 13. The surface 120a formed by the bottom portion 120 and the flange portion 127 and the axial direction of the steering shaft 60 are arranged in parallel. The flange 127 is coupled to the steering side bracket 61 fixed to the steering shaft 60 by a bolt 62a and the like.

  The third strength member 43 coupled to the left side (passenger seat side) of the second strength member 22 includes a closed section 421a having a rectangular beam cross-sectional shape. The closed cross-sectional portion 421a is configured to be surrounded by a bottom portion 420, two parallel wall portions 422 and 423 that stand from the bottom portion 420, and an upper surface portion 428 that connects the wall portions 422 and 423. The closed section 421a accommodates a divided component air conditioning duct 102c. That is, the component air-conditioning duct 102c is inserted into the closed cross-sectional portion 421a of the third strength member 43 from the A pillar 70b side, and can be assembled to the third strength member 43.

  The component air conditioning duct 102b is arranged on one of the wall surfaces constituting the open cross section of the second strength member 22 as in the second embodiment. When the first to third strength members 13, 22, 43 are assembled, the component air conditioning ducts 102 a, 102 b, 102 c accommodated in the respective strength members are also assembled and integrated as an air conditioning duct, so that the center shell is integrated. CCB assembly is completed.

  Coupling with the left and right A pillars 70a, 70b of the center shell CCB. Since it is the same as that of the said 3rd Embodiment, description is abbreviate | omitted.

(Fifth embodiment)
Next, a center shell CCB according to a fifth embodiment of the present invention will be described with reference to FIGS. FIG. 11 is a front view showing an outline of a center shell CCB as the vehicle strength member structure of the fourth embodiment. FIG. 12 is a top view schematically showing the center shell CCB as viewed from above the vehicle. As in FIGS. 1, 3, 5, 6, 8, and 9, these are shown with the horizontal direction of the paper as the longitudinal direction. 13A is a cross-sectional view taken along the line AA in FIG. 11, and is the same as FIG. FIG. 13B is a BB cross-sectional view of FIG. 11 and is the same as FIG. 7B. FIG. 13C is a cross-sectional view taken along the line CC of FIG. 11 and is the same as FIG. In addition, about the component similar to the said 1st thru | or 3rd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The center shell CCB of the fifth embodiment uses the same first strength member 13 as the first strength member 13 of the fourth embodiment. The second strength member 22 is the same as the second strength member of the third and fourth embodiments. The third strength member 42 is the same as the third strength member 42 of the third embodiment.

  The center shell CCB of the fifth embodiment includes an air conditioning duct in which two component air conditioning ducts 102a and 102d are assembled together. The shape of the assembled air conditioning duct is the same as that of the air conditioning duct 102 in the third and fourth embodiments.

  That is, the closed section 121a is formed in the first strength member 13, and the component air conditioning duct 102a is inserted into the closed section 121a from the A-pillar portion 70a side on the driver's seat side and assembled. The other component air conditioning duct 102d is housed in the open section 421 of the third strength member 32.

It is a front view which shows the outline of the center shell CCB of 1st Embodiment. (A) is AA sectional drawing of FIG. 1, (B) is BB sectional drawing of FIG. 1, (C) is CC sectional drawing of FIG. It is a front view which shows the outline of the center shell CCB of 2nd Embodiment. (A) is AA sectional drawing of FIG. 3, (B) is BB sectional drawing of FIG. 3, (C) is CC sectional drawing of FIG. It is a front view which shows the outline of the center shell CCB of 3rd Embodiment. It is a top view which shows the outline of the center shell CCB of 3rd Embodiment. (A) is AA sectional drawing of FIG. 5, (B) is BB sectional drawing of FIG. 5, (C) is CC sectional drawing of FIG. It is a front view which shows the outline of the center shell CCB of 4th Embodiment. It is a top view which shows the outline of the center shell CCB of 4th Embodiment. (A) is AA sectional drawing of FIG. 8, (B) is BB sectional drawing of FIG. 8, (C) is CC sectional drawing of FIG. It is a front view which shows the outline of the center shell CCB of 5th Embodiment. It is a top view which shows the outline of the center shell CCB of 5th Embodiment. (A) is AA sectional drawing of FIG. 11, (B) is BB sectional drawing of FIG. 11, (C) is CC sectional drawing of FIG.

Explanation of symbols

10, 11, 12, 13 ... first strength member, 20, 21, 22 ... second strength member,
30, 31 ... brace part, 40, 41, 42, 43 ... third strength member,
50a, 50b ... side brackets, 51a, 51b ... body side side brackets,
60 ... steering shaft, 61 ... steering side bracket,
70a, 70b ... A pillar part.

Claims (8)

A vehicle strength member structure (1) for connecting two structural members (70a, 70b) of a vehicle body in a longitudinal direction,
A first strength member (10, 11, 12, 13), a second strength member (20, 21, 22) and a third strength member (40, 41, 42, 43) are provided, and the first strength member is provided in the longitudinal direction. A vehicle strength member structure in which a member, a second strength member, and a third strength member are joined in this order. 2. The vehicle strength member structure according to claim 1, wherein the second strength member disposed in the central portion in the longitudinal direction has an open cross-sectional shape perpendicular to the longitudinal direction. At least one of the first strength member and the third strength member disposed on the left and right in the longitudinal direction of the second strength member has an open cross section perpendicular to the longitudinal direction. Item 3. The vehicle strength member structure according to Item 1 or 2. At least one of the first strength member and the third strength member arranged on the left and right in the longitudinal direction of the second strength member has a closed cross section perpendicular to the longitudinal direction. Item 3. The vehicle strength member structure according to Item 1 or 2. The two structural members are two left and right pillars in the front part of the vehicle body, and the first strength member includes a steering mounting surface (11c, 120a) in the longitudinal direction, and the first strength member is a driver's seat. The surface direction of the steering mounting surface and the axial direction of the steering shaft (60) of the vehicle are parallel to each other when arranged on the side. Strength member structure for vehicles. The two structural members are two pillars on the left and right of the front portion of the vehicle body, and the first and third strength members include flanges (126, 127, 424, 425), respectively, and the first strength The said 1st and 3rd intensity | strength member is couple | bonded with the said pillar through the said collar part, when a member is arrange | positioned at the driver's seat side, The Claim 1 characterized by the above-mentioned. Strength member structure for vehicles. The vehicular strength member structure according to any one of claims 1 to 6, wherein the second strength member includes at least one brace portion (30, 31). The second strength member includes a contact surface (20a, 20b, 21a, parallel to the surface of the housing of the in-vehicle component (101, 102, 102b, 102d, 200) mounted on the vehicle in the longitudinal direction. The vehicle strength member structure according to any one of claims 1 to 7, wherein 21b and 22a) are formed.

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