JP2009262703A - Vehicle body strength member part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mainly reduce rigidity and weight in a vehicle body strength member, and to enhance accuracy of components. <P>SOLUTION: A vehicle body strength member body 43 comprises a driver's seat side part 44 positioned on a driver's seat side and an occupant seat side part 45 positioned on an occupant seat side. The driver's seat side part 44 comprises a driver's seat inside part 46 and a driver's seat outside part 47. The driver's seat inside part 46 has a column front part mounting part 52 and a column rear part mounting part 53 allowing mounting of a steering column 16 at two front/rear positions. The driver's seat inside part 46 has a mounting part 62 for components allowing mounting of the components at a rear part of a strength member part 61. The strength member part 61 is integrally formed with the mounting part 62 for components. The mounting part 62 for components is integrally provided with the column rear part mounting part 53. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  Vehicles such as automobiles are provided with a passenger compartment for passengers to board. And the vehicle body strength member which is mentioned later is provided in the front part of this vehicle interior (for example, refer to patent documents 1).

  For example, as shown mainly in FIGS. 24 and 25, the passenger compartment 1 has a front wall 2, a left and right side wall 3, and a floor portion 4, which partition the engine compartment at the front thereof. Yes. An instrument panel 5 is attached to the front portion of the vehicle compartment 1. The above-described vehicle body strength member 6 is disposed inside the instrument panel 5. The vehicle body strength member 6 is called a cross car beam or a steering support member.

  The vehicle body strength member 6 has a vehicle body strength member main body 8 extending substantially in the vehicle width direction 7 and having a function as a transverse beam. The vehicle body strength member main body 8 is generally constituted by an iron round pipe.

  The vehicle body strength member main body 8 includes a driver seat side portion 11 located on the driver seat side and a passenger seat side portion 12 located on the passenger seat side. In this case, due to the difference in required rigidity, a round pipe having a relatively large diameter is used for the driver side portion 11 that requires high rigidity, and the passenger seat side that does not require as much rigidity as the driver seat side portion 11. A round pipe having a relatively small diameter is used for the portion 12. The passenger seat side portion 12 is formed to be the same as or longer than the driver seat side portion 11. In this case, since it is an example of a left-hand drive vehicle, the driver's seat side portion 11 is located on the left side in the figure, and the passenger seat side portion 12 is located on the right side in the figure. On the other hand, in the case of a right-hand drive vehicle, although not shown in particular, the driver's seat side portion 11 is located on the right side in the drawing, and the passenger seat side portion 12 is located on the left side in the drawing.

  The driver seat side portion 11 and the passenger seat side portion 12 are joined by welding. For example, in the case of the vehicle body strength member 6 shown in FIG. 26 and FIG. 27, the difference in diameter between the inner end portion of the driver seat side portion 11 and the inner end portion of the passenger seat side portion 12 is different. A tapered short cylindrical connecting member 13 for absorbing and joining without steps is interposed, and on both sides of the connecting member 13 are a driver seat side portion 11 and a passenger seat side portion 12, respectively. Joined (welded).

  Side brackets 14 for fastening and fixing to the left and right side walls 3 of the passenger compartment 1 are welded to both ends of the vehicle body strength member main body 8 in a substantially perpendicular state. The side bracket 14 is composed of a substantially flat iron plate member parallel to the left and right side walls 3.

  A steering column 16 (see FIG. 25) extending substantially in the vehicle front-rear direction 15 is disposed below (in the center of) the driver seat side portion 11 described above. The steering column 16 is inclined and arranged so as to rise rearward with respect to the horizontal direction. The front end portion of the steering column 16 extends through the front wall 2 of the passenger compartment 1 into the front engine room, although not particularly shown. A steering wheel 17 is attached to the rear end of the steering column 16 for operation by an occupant.

  The steering column 16 is fastened and fixed to the column attachment portion at two positions on the front and rear sides of the driver seat side portion 11.

  Therefore, a column front mounting portion such as a column front mounting bracket 21 and a column rear mounting portion such as a column rear mounting bracket 22 are fixed to the driver's seat side portion 11 as a column mounting portion by welding in the front-rear direction. ing. The column front mounting bracket 21 and the column rear mounting bracket 22 are provided in a pair of left and right states with respect to the positions on both sides of the steering column 16 (see FIG. 26).

  Of these, the column front mounting bracket 21 is an iron plate member that is bent so as to have a substantially hat-like (or U-shaped) cross-sectional shape that is open upward, although not shown in detail. It is configured. Further, as shown in FIG. 28, the rear portion of the column front mounting bracket 21 has an arcuate cutout portion 23 (abutting against the front side portion of the driver side portion 11 and capable of being welded and fixed in side view). A contact portion) is formed.

  Similarly, as shown in FIGS. 29 and 30, the column rear mounting bracket 22 is an iron plate that is bent so as to have a substantially U-shaped (or a hat-like) cross-sectional shape that is open upward. It is composed of members. As shown in FIG. 28, an arc-shaped notch 24 that abuts against the rear portion of the driver's seat side portion 11 and can be fixed by welding to the upper front portion of the column rear portion mounting bracket 22 in a side view. (Contact part) is formed.

  In the upper rear side portion of the column rear portion mounting bracket 22, a countersink portion 26 for preventing interference with the instrument device 25 disposed above is formed. If necessary, as shown in FIGS. 29 and 30, a cover member 27 is attached to the counterbore part 26 to close the upper open portion and bring the box structure closer to the rigidity. The lid member 27 may be provided separately on the left and right, but may be connected to the left and right by an integral connecting portion 28 as necessary.

  Further, as shown in FIG. 25, a post bracket capable of preventing a torsion 39 of the vehicle body strength member main body 8 between the front wall 2 of the passenger compartment 1 and the driver seat side portion 11 and the column front portion mounting bracket 21. 31 is interposed. The post bracket 31 has a substantially bifurcated shape branched toward the rear in a side view, or a substantially “<” shape in a side view bent at an intermediate portion. The post bracket 31 is fastened and fixed at its middle part to the front wall 2 of the passenger compartment 1 and both ends of the bifurcated shape are fixed to the driver seat side part 11 and the column front part mounting bracket 21 by welding or the like. Is done. The post bracket 31 is formed of an iron plate member that is bent so as to have an L-shaped or C-shaped cross-sectional shape.

  Further, as shown in FIG. 24, stays 33 and 34 that can support the vehicle body strength member main body 8 on the floor 4 of the passenger compartment 1 are provided around the boundary portion between the driver seat side portion 11 and the passenger seat side portion 12. Is arranged. The stays 33 and 34 extend substantially in the vertical direction, and a lower end portion thereof is directly or indirectly fastened and fixed to the floor portion 4 of the passenger compartment 1, and an upper end portion of the stay 33 and 34 is a vehicle body strength member main body. 8 is fixed by welding to the lower half. As shown in FIG. 27, the stays 33 and 34 are configured such that the lower end portion is positioned slightly rearward of the upper end portion by bending the upper end side slightly forward. The stays 33 and 34 are provided on at least one of the driver seat side portion 11 or the passenger seat side portion 12. In this case, a stay 33 is provided in the driver seat side portion 11, and a stay 34 is provided in the passenger seat side portion 12. The stays 33 and 34 are constituted by an iron plate member that is bent so as to have a substantially U-shaped cross-sectional shape that is open on one side of the vehicle width direction 7.

  According to such a configuration, the relatively large-diameter round pipe that forms the driver's seat side portion 11 and the relatively small-diameter round pipe that constitutes the passenger's seat side portion 12 (the connecting member 13 is connected). The body strength member main body 8 is formed by welding.

  The side bracket 14, the column front mounting bracket 21, the column rear mounting bracket 22, the post bracket 31, and the stays 33 and 34 are fixed to the vehicle body strength member main body 8 by welding. Further, a lid member 27 is attached to the column rear mounting bracket 22 as necessary. Further, by attaching the lid member 27 connected by the connecting portion 28, the left and right column rear portion mounting brackets 22 are connected.

  Thus, the vehicle body strength member 6 is configured in advance.

  Next, a pre-configured vehicle body strength member 6 is installed in the front portion of the passenger compartment 1.

  The vehicle body strength member 6 is first installed by placing the vehicle body strength member 6 between the left and right side walls 3 of the passenger compartment 1 and above the floor portion 4, and using the stays 33 and 34 to fix the intermediate portion of the vehicle body strength member main body 8. The floor 4 is temporarily supported.

  Then, both end portions of the vehicle body strength member main body 8 are fastened and fixed to the left and right side walls 3 using the side brackets 14. Further, the lower ends of the stays 33 and 34 are fastened and fixed to the floor 4. Further, the intermediate portion of the post bracket 31 is fastened and fixed to the front wall 2.

  Thus, when the vehicle body strength member 6 is installed, the steering column 16 disposed below the driver's seat side portion 11 of the vehicle body strength member main body 8 is used using the column front mounting bracket 21 and the column rear mounting bracket 22. Fastened and fixed to the driver's seat side portion 11 at two positions in the front and rear.

  Lastly, the instrument panel 5 is attached to the front portion of the passenger compartment 1, and the vehicle body strength member 6 is covered by the instrument panel 5 so as not to be seen from the outside.

  When an engine (not shown) is started, engine vibration is transmitted to the steering wheel 17 via the steering column 16.

The vibration of the steering column 16 and the steering wheel 17 is transmitted to the vehicle body strength member main body 8 through the column front mounting bracket 21 and the column rear mounting bracket 22. And the input such as vibration transmitted to the vehicle body strength member main body 8 is transmitted to the floor portion 4 via the stay 33, and the floor portion 4 receives this, as shown by a virtual line in FIG. The bending 38 (vertical bending) of the vehicle body strength member main body 8 is prevented. Further, the vibration and other input transmitted to the vehicle body strength member main body 8 is transmitted to the front wall 2 via the post bracket 31, and the front wall 2 receives the input, so that the arrow shown in FIG. The twist 39 of the vehicle body strength member main body 8 is prevented.
Japanese Patent No. 3734651

  However, the vehicle body strength member portion structure has the following problems.

  That is, an iron round pipe is used for the vehicle body strength member main body 8 in order to improve productivity and reduce costs, and the column front mounting bracket 21, column rear mounting bracket 22, stay, etc. An iron plate member is used for 33, 34, and the like.

  And in order to give required rigidity, the said iron plate member is bending-processed so that it may have cross-sectional shapes, such as U shape or a hat shape.

  However, when the rigidity of the iron plate member cannot be sufficiently ensured, the thickness of the iron plate member must be increased to cope with this, which causes a problem of increasing the weight of the vehicle body strength member 6. there were.

  In particular, in the case of the column rear mounting bracket 22, as shown in FIG. 28, the countersink part 26 is provided in order to prevent interference with the instrument device 25 disposed above. 29 and 30, a lid member 27 is attached to form a box structure so as to improve rigidity. In addition, by connecting the left and right lid members 27 with a connecting portion 28, the input can be dispersed. However, since it is difficult to desire a significant improvement in rigidity only by such a connection with the lid member 27 or the connecting portion 28, it is necessary to increase the plate thickness to cope with it, which contributes to an increase in weight. .

  Further, since each of the iron plate members described above is welded and fixed to the vehicle body strength member main body 8, it is necessary to obtain a required joint rigidity for the welded portion.

  However, the welded portion between the steel plate member and the vehicle body strength member main body 8 is notched as shown in FIG. 28, for example, in the case of the column rear mounting bracket 22 in order to avoid deterioration in dimensional accuracy due to welding distortion. Since the entire region of the portion 24 (contact portion) is not welded but spot welding or welding to a narrower range (partial welded portion 24a), it is not always necessary to ensure the rigidity of the welded portion. It was not enough.

  Further, the column rear mounting bracket 22 and the stay 33 are separately attached to the rear portion of the vehicle body strength member main body 8 at positions separated from each other in the vehicle width direction 7, so that they cooperate with each other. There was no such thing as a partnership. Therefore, an input such as vibration from the steering column 16 is once transmitted to the vehicle body strength member main body 8, and then transmitted to the stay 33, the post bracket 31, etc. via the vehicle body strength member main body 8. Since it is transmitted to the floor 4 and from the post bracket 31 to the front wall 2, the vehicle body strength member main body 8 needs to be enlarged in cross section or thickened in order to increase rigidity. Has occurred. Therefore, an increase in the weight of the vehicle body strength member 6 cannot be avoided.

  Furthermore, since the vehicle body strength member 6 is a (relatively large) welded structure as described above, it is difficult to handle and it is difficult to increase the accuracy of the parts due to the above-described welding distortion. It was.

  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 problems, the invention described in claim 1 is characterized in that a vehicle body strength member is disposed at a front portion of a passenger compartment, and the vehicle body strength member extends substantially in the vehicle width direction to function as a transverse beam. The vehicle body strength member main body has a driver seat side portion located on the driver seat side and a passenger seat side portion located on the passenger seat side, and the driver seat side portion A front part of the column having a seat inner part and a driver seat outer part, and a steering column extending substantially in the vehicle front-rear direction can be mounted at two positions in the front and rear directions on the inner part of the driver seat near the driver seat outer part. A vehicle body strength member portion in which a mounting portion and a column rear mounting portion are installed, and a stay capable of supporting the vehicle body strength member main body on the floor portion of the passenger compartment is disposed near the passenger seat side portion of the inner side of the driver seat In the structure, the inner side of the driver's seat is behind the strength member that can form part of the cross beam. In addition, there is a part mounting part that can be attached to the part, the part mounting part is integrally formed with the strength member part, and the column rear part mounting part is integrally provided with the part mounting part. It is a feature.

  The invention described in claim 2 is, in the above, a component common mounting portion, wherein the component mounting portion is integrally extended to the boundary portion with the passenger seat side portion along the strength member portion, It is characterized in that a stay mounting portion to which a stay can be mounted is provided integrally with the component common mounting portion.

  In the invention described in claim 3, in the above, the column front mounting portion is disposed on the front side of the strength member portion, and the column front mounting portion has two surfaces of the front surface and the lower surface of the strength member portion. It is characterized in that it can be mounted with a mounting surface portion corresponding to two surfaces.

  According to a fourth aspect of the present invention, in the above, the stay has a two-part simultaneous support portion that can be supported across the lower surfaces of the two portions of the stay attaching portion and the strength member portion at the upper end portion thereof. The two-part simultaneous supported part supported by the two-part simultaneous support part is formed on the lower surfaces of the stay attaching part and the strength member part.

  The invention described in claim 5 is characterized in that, in the above, the column front mounting portion is integrally formed on the front side of the strength member portion.

  In the invention described in claim 6, in the above, the column front mounting portion integrally formed on the front side of the strength member portion is integrally extended to the position of the stay mounting portion along the strength member portion. The upper end portion has a three-part simultaneous support portion that can be supported across the lower surface of the three portions of the stay attachment portion, the strength member portion, and the extension portion of the column front portion attachment portion, and the stay attachment portion, The three-part simultaneous supported part supported by the three-part simultaneous support part is formed on the lower surface of the strength member part and the extension part of the column front part attaching part.

  According to the seventh aspect of the present invention, in the above, the driver seat inner portion is configured as a separate connecting member from the driver seat outer portion and the passenger seat side portion, and the connecting member is the driver seat. It has the 1st connection part which can connect an outer side part, and the 2nd connection part which can connect a passenger seat side part.

  According to an eighth aspect of the present invention, in the above, the connecting member includes at least three blocks arranged in parallel in the vehicle longitudinal direction, and each block has a closed cross-sectional portion extending in the vehicle width direction. Thus, the connecting member has a continuous tube shape.

  The invention described in claim 9 is characterized in that, in the above, the closed cross-sectional portion of each block is configured to become larger toward the front side.

  In the invention described in claim 10, in the above, the upper surface portion of the intermediate block is an inclined surface inclined downward from the upper surface portion of the front block toward the upper surface portion of the rear block. It is characterized by that.

  According to the eleventh aspect of the present invention, in the above, the closed cross-section portion of the intermediate block is a vertical surface portion positioned at the boundary with the front block, an upper surface portion that is a downwardly inclined surface, It is characterized by being a triangular cross-sectional shape part composed of an upwardly inclined partition wall surface part provided so as to connect the lower side parts.

  According to a twelfth aspect of the present invention, in the above, the first connecting portion capable of connecting the driver seat outer side portion is provided in the closed cross section of the front block, and the second side seat portion can be connected. The connecting portion is provided in the closed cross-sectional portion of the intermediate block.

  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, since the column rear portion mounting portion is provided in the component mounting portion integrally formed with the strength member portion, the strength member portion and the column rear mounting portion are integrated, thereby reducing the number of components. In addition, the rigidity between the two can be increased. In addition, since the strength member portion and the column rear portion mounting portion are not welded, there is no welding distortion and the component accuracy can be extremely increased.

  According to invention of Claim 2, the following effects can be acquired by the said structure. That is, since the stay mounting portion is provided in the component common mounting portion that is integrally formed with the strength member portion, the strength member portion and the stay mounting portion are integrated, thereby reducing the number of components accordingly. In addition, the rigidity between the two can be increased. In addition, since the strength member portion and the stay mounting portion are not welded, there is no welding distortion and the component accuracy can be extremely increased. Since the steering column and the stay can be attached to the common component mounting part, the input from the steering column (vibration, etc.) hardly passes through the strength member part, and the common part mounting part and stay It is possible to transmit (escape) directly and efficiently to the floor portion of the passenger compartment via the, thereby reducing the transmission of the input to the strength member portion. As a result, it is possible to reduce the size and weight of the entire cross section of the strength member portion and the vehicle body strength member main body.

  According to invention of Claim 3, the following effects can be acquired by the said structure. That is, the mounting strength of the column front mounting portion with respect to the strength member portion can be improved by attaching the column front mounting portion to the strength member portion on two surfaces.

  According to invention of Claim 4, the following effects can be acquired by the said structure. That is, an input (such as vibration) from the steering column and an (external) input to the strength member portion are directly and efficiently applied to the floor portion of the passenger compartment by a stay having a two-part simultaneous support portion. Therefore, it is possible to obtain a support state that is more advantageous for force transmission and higher in strength. This makes it possible to further reduce the cross-section and weight of the entire strength member portion and the vehicle body strength member main body.

  According to invention of Claim 5, the following effects can be acquired with the said structure. That is, since the column front portion mounting portion is integrally formed with the strength member portion, the number of parts can be further reduced and the rigidity between them can be increased. Further, since the strength member portion and the column front mounting portion are not welded, there is no welding distortion, and the component accuracy can be extremely increased.

  According to invention of Claim 6, the following effects can be acquired by the said structure. That is, an input (such as vibration) from the steering column, an (external) input to the strength member portion, and an (external) input to the column front mounting portion are directly input to the floor portion of the passenger compartment. Therefore, it is possible to obtain a support state that is even more advantageous and strong in terms of force transmission. This makes it possible to further reduce the cross-section and weight of the strength member portion and the entire body strength member main body.

  According to invention of Claim 7, the following effects can be acquired by the said structure. That is, the vehicle body strength member is obtained by connecting the driver seat outer side portion and the passenger seat side portion to the driver seat inner side portion, which is a connecting member, via the first connecting portion and the second connecting portion. As an assembly structure that can be easily assembled, handling can be facilitated. In addition, it is possible to easily reduce the weight and cost of the vehicle body strength member. Further, since the welding of these components is not necessary, it is possible to provide a vehicle body strength member having no welding distortion and extremely high component accuracy.

  According to invention of Claim 8, the following effects can be acquired by the said structure. That is, by connecting the connecting member to a continuous tube shape having at least three blocks having a closed cross section, a connecting member that is small and has high rigidity (particularly high rigidity in the vehicle front-rear direction) can be obtained. . As a result, it is possible to reduce the weight of the connecting member and the entire vehicle body strength member. Moreover, since it is possible to give various functions and applications to at least three blocks, the connecting member can be configured with a high degree of freedom.

  According to the ninth aspect of the present invention, the following effects can be obtained by the above configuration. That is, it is possible to achieve a structure having the strongest rigidity with respect to the input from the front side while further reducing the size of the connecting member.

  According to the tenth aspect of the present invention, the following effects can be obtained with the above-described configuration. That is, stress concentration can be avoided by eliminating the step between the upper surface portions of the blocks. In addition, by making the upper surface portion lower from the intermediate block toward the rear block, it is possible to secure a space for installing an instrument device or the like above them.

  According to invention of Claim 11, the following effects can be acquired with the said structure. That is, even if an instrument device or the like is installed above the intermediate block, sufficient cross-sectional rigidity can be ensured.

  According to invention of Claim 12, the following effects can be acquired with the said structure. That is, by connecting the outer side of the driver seat and the passenger side portion to different blocks, the cross section of the outer side of the driver seat is relatively large and the cross section of the side portion of the passenger seat is increased according to the required rigidity. It can be made relatively small. Further, the passenger seat side portion can be offset from the driver seat outer side portion in the vehicle longitudinal direction rearward. Thereby, for example, when the air conditioning unit is detoured to the passenger seat side portion, the detouring portion can be made smaller so that the air conditioning unit can be detoured with a margin. Furthermore, by making the closed cross-section portion of the intermediate block a triangular cross-section shape portion, the passenger seat side portion can be a triangular cross-section portion, and weight reduction can be achieved while maintaining rigidity.

  An object of the present invention is to reduce the rigidity and weight of a vehicle body strength member and to increase the accuracy of parts.

  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.

  FIGS. 1-19 and FIGS. 20-23 show the Example of this invention, its modification, etc. FIG.

  The main configuration of the passenger compartment is basically the same as that described with reference to FIG. 24 and FIG. 25. Therefore, the drawings are referred to as necessary, and the present embodiment is described with reference to these drawings. It can be explained. At this time, the same or equivalent parts are denoted by the same reference numerals. However, the different parts are based on FIGS. 1 to 19 and FIGS. 20 to 23.

  “Configuration” First, the configuration will be described.

  Vehicles such as automobiles are provided with a passenger compartment for passengers to board. A vehicle body strength member as will be described later is provided at the front portion of the vehicle interior.

  For example, as shown in FIGS. 24 and 25, the passenger compartment 1 has a front wall 2, left and right side walls 3, and a floor portion 4 that partition the engine compartment from the engine room. An instrument panel 5 is attached to the front portion of the vehicle compartment 1. A vehicle body strength member 41 (see FIG. 1 (or FIG. 2), FIG. 17, or FIG. 20) according to the embodiment of the present invention is disposed inside the instrument panel 5. The vehicle body strength member 41 is called a cross car beam or a steering support member.

  A steering column 16 extending substantially in the vehicle front-rear direction 15 is disposed below the driver seat side portion of the vehicle body strength member 41 as shown in FIG. The steering column 16 is inclined and arranged so as to rise rearward with respect to the horizontal direction. The front end portion of the steering column 16 extends through the front wall 2 of the passenger compartment 1 into the front engine room, although not particularly shown. A steering wheel 17 is attached to the rear end of the steering column 16 for operation by an occupant (see FIG. 24).

  As shown mainly in FIG. 1, the vehicle body strength member 41 has a vehicle body strength member main body 43 that extends substantially in the vehicle width direction 7 and mainly functions as a cross beam (beam member). The vehicle body strength member main body 43 is roughly divided into three parts: a driver seat side portion 44 located on the driver seat side, a passenger seat side portion 45 located on the passenger seat side, and an intermediate portion located between the two. have. However, the intermediate portion is usually formed so as to belong to either the driver seat side portion 44 or the passenger seat side portion 45, so that the driver seat side portion 44 and the passenger seat side portion 45 have two parts. Often categorized broadly. Further, the driver's seat side portion 44 is roughly divided into two parts, that is, a driver's seat inner part 46 located inside and a driver's seat outer part 47 located outside. The boundary position between the driver seat inner portion 46 and the driver seat outer portion 47 is not necessarily clear, but here, the driver seat inner portion 46 extends to the center of the driver seat side portion 44 to which the steering column 16 is attached. To include.

  In this case, the driver seat side portion 44 is configured to have relatively high rigidity, and the passenger seat side portion 45 is configured to have relatively low rigidity. That is, by providing the driver seat side portion 44 and the passenger seat side portion 45 with a difference in rigidity, the overall weight can be reduced while having the necessary rigidity. In this case, since it is an example of a right-hand drive vehicle, the driver's seat side portion 44 is located on the right side in the figure, and the passenger seat side portion 45 is located on the left side in the figure. On the other hand, in the case of a left-hand drive vehicle, although not particularly shown, the driver's seat side portion 44 is located on the left side in the drawing, and the passenger seat side portion 45 is located on the right side in the drawing.

  Side brackets 51 for fastening and fixing to the left and right side walls 3 of the passenger compartment 1 are attached to both end portions of the vehicle body strength member main body 43 in a substantially perpendicular state. The side bracket 51 is composed of a substantially flat iron plate member parallel to the left and right side walls 3. In this case, the side brackets 51 are respectively attached to the outer end portion of the passenger seat side portion 45 and the outer end portion of the driver seat outer side portion 47.

  The above-described steering column 16 is fastened and fixed to the driver seat inner portion 46 of the driver seat side portion 44 at two column positions at the front and rear positions.

  Therefore, a portion of the driver seat inner portion 46 near the driver seat outer portion 47 (substantially the central portion of the entire driver seat side portion 44), as shown in FIG. A column front portion mounting portion 52 and a column rear portion mounting portion 53 capable of mounting the extending steering column 16 at two positions are provided. As described above, as the steering column 16 is inclined rearwardly, the column front mounting portion 52 is provided at a relatively low position, and the column rear mounting portion 53 is relatively high. It will be provided at the position. Therefore, the column front mounting portion 52 may be referred to as a column mounting lower member, and the column rear mounting portion 53 may be referred to as a column mounting upper member.

  As shown in FIG. 4, the column front mounting portion 52 and the column rear mounting portion 53 are provided in a pair on the left and right sides so that the steering column 16 can be sandwiched with respect to the positions on both sides of the steering column 16. (Only the position of the column rear mounting portion 53 is shown, but the same applies to the column front mounting portion 52).

  Further, as shown in FIG. 1 (or FIG. 6), the vehicle body strength member main body 43 is prevented from being twisted between the front wall 2 of the passenger compartment 1 and the driver seat side portion 44 and the column front portion mounting portion 52. Possible post brackets 55 are interposed. The post bracket 55 has a substantially bifurcated shape branching rearward in a side view, or a substantially “<” shape in a side view bent at an intermediate portion. In this case, the post bracket 55 has an intermediate portion (or front end portion) fastened and fixed to the front wall 2 of the passenger compartment 1 and bifurcated end portions (or two rear end portions) at the driver's seat. It is fixed to each of the side portion 44 and the column front mounting portion 52 by fastening or welding. The bifurcated post bracket 55 includes a horizontal arm portion extending substantially horizontally from the intermediate portion and connected to the driver's seat side portion 44, and a column front mounting portion extending substantially downward from the intermediate portion. And an inclined arm portion connected to 52. The post bracket 55 is formed of an iron plate member that is bent so as to have a cross-sectional shape such as a U shape or a hat shape. In this case, the post bracket 55 is formed by joining two iron plate members constituting the horizontal arm portion and the inclined arm portion by welding or the like. The configuration of the post bracket 55 is not limited to the above, although the above is optimal.

  Further, a stay 56 capable of supporting the vehicle body strength member main body 43 (around the center thereof) on the floor portion 4 of the passenger compartment 1 is disposed near the passenger seat side portion 45 of the driver seat inner portion 46. . The stay 56 extends substantially in the vertical direction, and the lower end portion thereof is fastened or fixed directly or indirectly to the floor portion 4 of the passenger compartment 1. In order for the stay 56 to receive an input from the front to the vehicle body strength member main body 43, the lower end portion thereof is slightly shifted rearward from a position directly below a strength member portion 61 described later of the vehicle body strength member main body 43. (See FIG. 6). There are cases where only one stay 56 is provided and two stays 56 are provided. When only one is provided, the stay 56 is mainly provided in the driver seat side portion 44. In the case of two, the stays 56 are mainly provided for both the driver seat side portion 44 and the passenger seat side portion 45, respectively. Further, in FIG. 4, the stay 56 has a lower end portion in the vehicle width direction 7 so as to be attached to a floor tunnel portion (not shown) provided in the center portion of the floor portion 4 of the passenger compartment 1 in the vehicle width direction 7. It is inclined to be inclined slightly toward the center.

  The basic configuration of the vehicle body strength member main body 43 has been described above.

  In addition to the basic configuration as described above, this embodiment has the following configuration. (Hereafter, mainly refer also to FIG. 1).

<Configuration 1>
(1) As shown in FIG. 5, the driver's seat inner side portion 46 has a strength member portion 61 that can mainly constitute a part of a cross beam, and a component mounting portion 62 that can mainly mount components and the like. It is said. In this case, the strength member portion 61 is positioned on the front side, and the component mounting portion 62 is positioned on the rear side. Then, a component mounting portion 62 is integrally formed with the strength member portion 61. Further, a column rear mounting portion 53 is provided integrally with the component mounting portion 62 (integrated with the strength member portion 61).

  (2) Then, as shown in FIG. 4, the component mounting portion 62 is integrally extended along the strength member portion 61 to the boundary portion with the passenger seat side portion 45, whereby the component common mounting portion 64. It is said. Furthermore, a stay attaching portion 63 to which the stay 56 can be attached is provided integrally with the component common attaching portion 64.

  (3) In the above, as shown in FIG. 3, the column front mounting portion 52 is disposed on the front side of the strength member portion 61. The column front mounting portion 52 may be mounted with a two-surface mounting surface portion 65 that can be mounted on the two surfaces of the front surface 61 a and the lower surface 61 b of the strength member portion 61.

  (4) In the case of (3) described above, as shown in FIGS. 6 to 8, the stay 56 is located at the upper end (in the component mounting portion 62 (or the component common mounting portion 64; the same applies hereinafter)). A two-part simultaneous support portion 66 that can be supported across the lower surfaces of two portions (in the vehicle longitudinal direction 15) of the stay attaching portion 63 and the strength member portion 61 is configured. On the other hand, a two-part simultaneous supported portion 67 that is supported by the two-part simultaneous support portion 66 is formed on the lower surfaces of the stay attaching portion 63 and the strength member portion 61.

  (5) Alternatively, as shown in FIG. 9, a column front mounting portion 52 may be integrally formed on the front side of the strength member portion 61 (integrated column front mounting portion and front and rear columns). Part mounting part integrated driver's seat inside).

  (6) In the case of (5) described above, as shown in FIG. 10, the column front mounting portion 52 (integrated column front mounting portion) integrally formed on the front side of the strength member portion 61 is the strength member portion. It is made to extend integrally to the position of the stay attaching part 63 along 61 (extension part 52a). The stay 56 spans between the lower surfaces of the three portions of the upper end portion of the stay mounting portion 63 (in the component mounting portion 62), the strength member portion 61, and the extended portion 52a of the column front mounting portion 52. And a three-part simultaneous support portion 68 that can be supported. On the other hand, a three-part simultaneous supported part 69 supported by a three-part simultaneous support part 68 is provided on the lower surfaces of the stay attaching part 63, the strength member part 61, and the extension part 52a of the column front part attaching part 52. To be formed.

  In addition, the above is a structure common to the case of FIGS. Further, the configuration is substantially applicable to the cases of FIGS.

  And as a supplementary explanation in the case of FIGS.

  In the case of (1) (see FIG. 5), the boundary in the vehicle front-rear direction 15 between the strength member portion 61 and the component attachment portion 62 varies depending on the mode, as will be described later. Further, the column rear mounting portion 53 is formed on the lower surface portion of the rear edge side of the component mounting portion 62. The column rear mounting portion 53 has a screw hole for fixing the steering column 16 with a fastening member such as a screw. In this case, the lower surface portion of the rear edge side of the component mounting portion 62 is a rear-upward inclined surface substantially corresponding to the inclination of the rear-up steering column 16, and the screw hole of the column rear portion mounting portion 53 is the inclined surface. It is provided almost straight.

  In the case of (2) (see FIGS. 4 and 6), the stay mounting portion 63 is formed on the lower surface portion of the rear edge side of the component mounting portion 62. The stay attaching portion 63 has a screw hole for fixing the stay 56 with a fastening member such as a screw. The screw holes of the stay mounting portion 63 are provided substantially in a plane with the inclined surface of the lower surface portion of the rear edge side of the component mounting portion 62 (component common mounting portion 64) described above. Further, as shown in FIG. 2, the stay 56 is constituted by an iron plate member that is bent so as to have a substantially U-shaped cross-sectional shape that is open on one side in the vehicle width direction 7. Alternatively, the stay 56 may be a light metal such as aluminum, an aluminum alloy, or a magnesium alloy, or a light alloy.

  In the case of (3), the column front mounting portion 52 has a shape as shown in FIG. 3 and is an inclined column front mounting bracket that extends substantially forward and downward. This column front mounting bracket is configured separately from an iron plate member or the like. The column front mounting portion 52 is formed with a screw hole 52b (in this case, a horizontal hole) for fastening and fixing the steering column 16. The two-surface corresponding mounting surface portion 65 of the column front mounting portion 52 has a front surface mounting portion 65a and a lower surface mounting portion 65b corresponding to the front surface 61a and the lower surface 61b of the strength member portion 61. The attachment of the front surface mounting portion 65a and the lower surface mounting portion 65b of the two-surface mounting surface portion 65 to the two surfaces of the front surface 61a and the lower surface 61b of the strength member portion 61 may be performed by bonding using an adhesive or the like. It is good also as what fixed these by fastening members, such as what combined these.

  In the case of (4), for example, as shown in FIGS. 6 and 7, the stay 56 has a gradually expanding shape at the upper end side so that the two-part simultaneous supported portion 67 of the driver seat inner side portion 46 is gradually extended by the stay 56. The two-part simultaneous support portion 66 having an enlarged shape may be supported in a substantially interview (line contact) direction from below. Alternatively, as shown in FIG. 8, the stay 56 is bifurcated at the upper end side so that the two-part simultaneous supported part 67 of the driver seat inner part 46 is replaced with the two-part two-part simultaneous support part 66 of the stay 56. Therefore, it is possible to support almost two points (two places) from below.

  In the case of (5), as shown in FIG. 9, the column front mounting portion 52 (integrated column front mounting portion) is integrally extended from at least the front surface 61 a of the strength member portion 61. In addition, you may comprise so that it may extend integrally from two surfaces, the front surface 61a and the lower surface 61b, of the strength member part 61. FIG. The column front mounting portion 52 (integrated column front mounting portion) has an inclined shape extending substantially forward and downward. The column front part mounting part 52 (integrated column front part mounting part) has a hollow structure or the like having a plurality of closed cross-sectional parts partitioned inside by a plurality of partition walls. The closed cross section extends in the vehicle width direction 7.

  In the case of (6), as shown in FIG. 10, the stay 56 has a gradually expanding shape on the upper end side, and the three-part simultaneous supported portion 69 of the driver seat inner side portion 46 is replaced with the three-part simultaneous supporting shape of the stay 56. The support portion 68 may support the surface (line contact) substantially from below. Further, the stay 56 branches the upper end side into a bifurcated shape or a trifurcated shape, and the three-part simultaneous supported portion 69 of the driver seat inner side portion 46 is replaced by the bifurcated or trifurcated three-part simultaneous supported portion 68 of the stay 56. Further, it is possible to support almost two points (two places) or three points (three places) from below. Such a stay 56 may be composed of one member or a plurality of members.

  In FIG. 10, a brake bracket 71 is attached to the front wall 2 of the passenger compartment 1 so as to be positioned on the front side of the column front portion attachment portion 52 or its extension portion 52a. In addition, when the brake bracket 71 interferes with the column front mounting part 52 or its extension part 52a in an emergency or the like by supporting the extension part 52a of the column front mounting part 52 with the stay 56, The input from the brake bracket 71 can be allowed to escape directly to the floor portion 4 via the stay 56 without passing through the strength member portion 61 of the driver seat inner side portion 46, or the column front portion mounting portion. 52 or its extended portion 52a and the floor portion 4 support the stay 56 so that the rigidity of the driver's seat inner portion 46 (strength member portion 61) is lowered accordingly, and the vehicle body strength is reduced. The member main body 43 can be reduced in cross section and reduced in weight.

<Configuration 2>
1 to 19 have the following configuration in addition to (Configuration 1) (hereinafter also refer to FIG. 1 mainly).

  (7) As shown in FIG. 1 (or FIG. 2) and FIG. 17, the driver seat inner side portion 46 constituting the vehicle body strength member 41 is separated from the driver seat outer side portion 47 and the passenger seat side portion 45. The connecting member 72 is a connecting core component. And the connection member 72 has the 1st connection part 73 which can connect the driver's seat outer side part 47, and the 2nd connection part 74 which can connect the passenger seat side part 45. As shown in FIG.

  In this case, with respect to the first connecting portion 73 and the second connecting portion 74, the driver seat outer side portion 47 and the passenger seat side portion 45 are partially inserted and fixed as shown in FIG. 11, for example. (Insertion fixing part). Although this partial insertion and fixing is by press-fitting, as shown in FIG. 12, it is not particularly shown that they may be bonded with an industrial adhesive or a resin bonding material 75 interposed between them. The bolts can be fixed to the part that is partially inserted and fixed, or these can be appropriately combined. The partially inserted and fixed portion may be a spigot joint or the like so as not to cause a step on the surface. This partial insertion and fixation is set to constitute the connecting portions 73 and 74 that are strong against input from the vehicle longitudinal direction 15 and the vertical direction. In addition, when interposing industrial adhesive, resin bonding material 75, etc., industrial adhesive, resin bonding material 75, etc. are arrange | positioned in the inner surface of the 1st connection part 73 and the 2nd connection part 74. A possible step-shaped installation portion or the like is appropriately provided.

  (8) Then, as shown in FIG. 5, the connecting member 72 is provided with at least three or more blocks 76 to 78 arranged substantially in parallel in the vehicle longitudinal direction 15. And each block 76-78 has the closed cross-section part 81-83 extended in the vehicle width direction 7, respectively, so that the connection member 72 becomes a continuous cylinder shape.

  In this case, the three blocks 76 to 78 are integrally formed. Moreover, each closed cross-section part 81-83 is adjacently formed with a common boundary.

  (9) In the case of (8) described above, as shown in FIG. 5, the closed cross-section portions 81 to 83 of the blocks 76 to 78 are configured to be larger toward the front side in the vehicle front-rear direction 15.

  That is, the closed cross-sectional portion 81 of the front block 76 is larger than the closed cross-sectional portion 82 of the intermediate block 77, and the closed cross-sectional portion 82 of the intermediate block 77 is larger than the closed cross-sectional portion 83 of the rear block 78. In order to increase, it is configured to decrease stepwise from the front side to the rear side.

  (10A) Then, the upper surface portion 86 of the intermediate block 77 is directed from the upper surface portion 85 (rear edge portion) of the front block 76 toward the upper surface portion 87 (front edge portion) of the rear block 78. The inclined surface is inclined downward.

  That is, for example, the upper surface portion 85 of the front block 76 becomes the highest substantially horizontal surface, and the upper surface portion 86 of the intermediate block 77 and the upper surface portion 87 of the rear block 78 are inclined downward. Make it a face. The upper surface portion 86 of the intermediate block 77 and the upper surface portion 87 of the rear block 78 may be continuous with the same gradient, but may have different gradients.

  Alternatively, as shown in FIG. 14, the upper surface portion 85 of the front block 76 is the highest substantially horizontal surface, and the upper surface portion 87 of the rear block 78 is the lowest substantially horizontal surface, and the intermediate block 77. The upper surface portion 86 of the slab is made to be an inclined surface that smoothly connects between them without any (large) step.

  In this case, the lower surface portion of the front block 76 and the lower surface portion of the intermediate block 77 are installed with the same height. Further, as described above, the lower surface portion of the rear block 78 is an inclined surface inclined upward from the lower surface portion (rear edge portion) of the intermediate block 77. These lower surface portions constitute the two-part simultaneous supported portion 67 and the three-part simultaneous supported portion 69 described above.

  (10B) Alternatively, as shown in FIG. 13, the upper surface portions 85 to 87 of the blocks 76 to 78 may have a stepped shape whose height decreases in order from the front side.

  That is, the upper surface portion 85 of the front block 76 is the highest horizontal surface, the upper surface portion 86 of the intermediate block 77 is a substantially horizontal surface of intermediate height, and the upper surface portion 87 of the rear block 78 is Step down to the lowest, almost horizontal surface.

  In this case, the lower surfaces of the blocks 76 to 78 have the same configuration as described above.

  (11) Further, the closed cross-section portions 81 to 83 of the respective blocks 76 to 78 can be subdivided within a range in which (9) is established. In particular, the closed cross section 82 of the intermediate block 77 is suitable for subdividing. In addition, when the closed cross-section portions 81 to 83 are subdivided, the size comparison of the closed cross-section portions 81 to 83 in (9) is performed with the largest size and not performed with other small sizes. And

  (11A) For example, as shown in FIG. 14, the closed cross-section portion 82 of the intermediate block 77 has a vertical surface portion 91 located at the boundary with the front block 76, and an upper surface portion 86 that is an inclined surface having a downward slope. Further, it may have (partition) a triangular cross-sectional shape portion 93 including an upwardly inclined partition wall surface portion 92 provided so as to connect the lower side portions of the both surface portions 82 and 86. Reference numeral 94 denotes another triangular cross-sectional shape portion 93 formed in the closed cross-sectional portion 82 by the partition wall surface portion 92. Reference numeral 95 denotes a countersink shape for installing the instrument device 25 on the upper side, which is constituted by the inclined upper surface portion 86 of the intermediate block 77 and the lower upper surface portion 87 of the rear block 78. Part.

  (11B) Alternatively, as shown in FIG. 15, the closed cross-sectional portion 82 of the intermediate block 77 is substantially horizontal at the height of the upper surface portion 87 of the block 78 on the rear side with respect to that of FIG. It is also possible to divide up and down by an extending partition wall portion 92 so as to divide into a substantially right-angled triangular portion 96 positioned on the upper side and a substantially rectangular-shaped rectangular portion 97 positioned on the lower side.

  (11C) or, further, as shown in FIG. 16, the rectangular portion 97 is divided into the rectangular portions 102 and 103 before and after the required size by the partition wall surface portion 101 extending in the vertical direction with respect to the one of FIG. It can also be made to partition.

  (12) The first connecting portion 73 capable of connecting the driver seat outer side portion 47 and the passenger seat side portion 45 can be connected to any of the closed cross-section portions 81 to 83 of the three blocks 76 to 78. A second connecting portion 74 is provided. The first connecting portion 73 and the second connecting portion 74 are provided for the side surface portions corresponding to the driver seat outer side portion 47 and the passenger seat side portion 45, respectively.

  (12A) For example, as shown in FIG. 1, the first connecting portion 73 and the second connecting portion 74 are both provided at the closed cross-section portion 81 (both ends) of the front block 76. Also good.

  In this case, if a special structure is not employed, the driver seat outer portion 47 and the passenger seat side portion 45 have the same shape and the same cross-sectional shape. Therefore, when making a difference in both rigidity, it can respond by changing a wall thickness, a material, etc.

  In this case, the front block 76 serves as the strength member portion 61, and the intermediate block 77 and the rear block 77 serve as the component mounting portion 62.

  (12B) Alternatively, as shown in FIGS. 17 to 19, the first connecting portion 73 capable of connecting the driver seat outer side portion 47 is provided in the closed cross-sectional portion 81 (the corresponding end portion) of the front block 76. In addition, a second connecting portion 74 capable of connecting the passenger seat side portion 45 is provided at the closed cross-sectional portion 82 (the corresponding end portion) of the intermediate block 77.

  In this case, due to the difference in size between the closed cross-section portion 81 and the closed cross-section portion 82, the driver seat outer side portion 47 and the passenger seat side portion 45 have cross-sectional shapes having at least different sizes. Further, as shown in FIGS. 14 to 16, by partitioning the closed cross-section portion 82 of the intermediate block 77, the size and cross-sectional shape of the passenger seat side portion 45 can be arbitrarily set to some extent. .

  Further, in this case, due to the difference in the position in the vehicle front-rear direction 15 between the closed cross-section portion 81 and the closed cross-section portion 82, as shown in FIG. The axes 105 and 106 are offset back and forth. In FIG. 19, reference numeral 107 denotes an air conditioning unit installed at the center in the vehicle width direction 7. And the passenger seat side part 45 is made into the detour shape which has the detour part 108 which avoids interference with this air-conditioning unit 107, and detours back.

  In this case, the front block 76 and the intermediate block 77 serve as the strength member portion 61, and the rear block 77 serves as the component mounting portion 62.

  Furthermore, the following matters can be given as supplementary explanations of (7) to (12) other than the above.

  First, the connecting member 72 is made of, for example, a light metal such as aluminum, an aluminum alloy, or a magnesium alloy, a light alloy, or a resin such as reinforced plastic. When a light metal or a light alloy is used, it can be produced by an extrusion method, a die casting method, or the like. When formed by an extrusion method, the cross-sectional shape becomes uniform in the longitudinal direction. When formed by die casting, the cross-sectional shape has a high degree of freedom. When the resin is used, it can be prepared by injection molding. When creating by injection molding, the cross-sectional shape has a high degree of freedom.

  For the driver seat outer portion 47 and the passenger seat side portion 45, a pipe material can be used as an advantageous member for reducing the weight and the price. For these pipe materials, the same material and molding method as those of the connecting member 72 can be used, and other pipe materials can also be used. In this case, the driver's seat outer side portion 47 and the passenger seat side portion 45 are formed as square pipes (square pipes, triangular pipes, etc.) having a cross section such as a rectangular cross section or a triangular cross section. In addition, the attachment of the side bracket 51 to the driver seat outer side portion 47 and the passenger seat side portion 45 made of pipe material is by screwing or partial insertion fixing similar to that described in (7). It can be. The side bracket 51 is attached in advance to the pipe material before assembling the vehicle body strength member 41 to constitute the driver seat outer side portion 47 and the passenger seat side portion 45.

  Further, as shown in FIG. 5 and the like, at least an upper portion of the upper surface portion 85 of the block 76 on the front side of the connecting member 72 has a narrow parallel U-shaped open cross-sectional portion 109 opened rearward in a side view. It is integrally formed in the width direction 7. The open section 109 is not particularly illustrated, but a housing module that can accommodate a harness module or the like formed by forming a wiring harness (not shown) that is routed along the vehicle body strength member 41 from behind, and accommodates it inside. Can be used as such. As shown in FIG. 1, the open cross-section portions 111 and 112 similar to the above-described open cross-section portion 109 are formed in the vehicle width direction 7 (integrally) with respect to the corresponding upper portions of the driver seat outer side portion 47 and the passenger seat side portion 45. In addition, it can be extended.

  Further, as shown in FIG. 1, the post bracket 55 passes through the horizontal arm portion above the U-shaped open cross section 109 and is connected to the upper surface portion of the component mounting portion 62 as shown in FIG. Also good. Alternatively, as shown in FIG. 17, the post bracket 55 may have its horizontal arm portion connected to the front surface 61 a of the strength member portion 61.

<Configuration 3>
20 to 23 have the following configuration in addition to the above (Configuration 1). However, this does not apply to (Configuration 2).

  In this case, the vehicle body strength member 41 is composed of two parts by separating the driver seat side portion 44 and the passenger seat side portion 45 from each other. The driver seat inner portion 46 and the driver seat outer portion 47 of the driver seat side portion 44 are integrally formed.

  One side bracket 51 is integrally formed with the outer end portion of the driver seat side portion 44. The other side bracket 51 is formed integrally with the outer end portion of the passenger seat side portion 45. The column front mounting portion 52 and the column rear mounting portion 53 are integrally formed with the driver seat side portion 44. Similarly, the stay 56 is integrally formed with the driver seat side portion 44.

  The driver seat side portion 44 and the passenger seat side portion 45 are connected through the connecting portion 121.

  In this case, the connecting portion 121 is an overlapping portion in which the driver seat side portion 44 and the passenger seat side portion 45 are partially overlapped, and the overlapping portion is fastened and fixed by a fastening member 122 such as a screw. Yes.

  Each of the driver seat side portion 44 and the passenger seat side portion 45 has substantially an open cross section.

  In this case, the driver's seat side portion 44 and the passenger seat side portion 45 have an open cross section having a substantially horizontal V-shaped vertical cross section opened forward in the vehicle front-rear direction 15.

  The stay 56 also has an open cross section having a substantially U-shaped horizontal cross section that is opened forward in the vehicle longitudinal direction 15.

  In addition, reinforcing ribs 125 are provided inside the open cross-section portions of the driver seat side portion 44, the passenger seat side portion 45, and the stay 56, as necessary.

  The vehicle body strength member 41 is made of a light metal such as aluminum, an aluminum alloy, or a magnesium alloy, or a light alloy.

  Such a vehicle body strength member 41 is created by a die-cast method or the like. At this time, as shown in FIG. 23, it is possible to perform casting by performing die cutting using a die 128.

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

  First, the vehicle body strength member 41 is assembled by connecting the components.

  In the case of FIGS. 1 and 17, the driver seat outer side portion 47 is connected to the first connecting portion 73 of the connecting member 72, and the passenger seat side portion 45 is connected to the second connecting portion 74. Thus, the vehicle body strength member 41 is assembled.

  At this time, the driver seat outer side portion 47 and the passenger seat side portion 45 are used as pipe members, and a part of the first connecting portion 73 and the second connecting portion 74 of the connecting member 72 is inserted and fixed or fitted and fixed. By doing so, it is possible to exhibit sufficient rigidity with respect to input from various directions. In addition, by using the driver seat outer side portion 47 and the passenger seat side portion 45 as the pipe material, a necessary reaction force can be generated by the section modulus of the pipe material.

  In the case of FIG. 20, the driver's seat side portion 44 and the passenger seat side portion 45 are partially overlapped at the connecting portion 121, and the overlapping portion is fastened and fixed using a fastening member 122 such as a screw. Thus, the vehicle body strength member 41 is assembled.

  Then, the column front mounting portion 52, the post bracket 55, and the stay 56 are attached to the vehicle body strength member main body 43 assembled in this way as necessary. The column rear mounting portion 53 and the side bracket 51 are incorporated in the vehicle body strength member 41 in advance. When the column front part mounting part 52 is formed integrally with the vehicle body strength member 41 (driver seat inner part 46), it is not particularly necessary to attach the column front part mounting part 52.

  The vehicle body strength member 41 configured as described above is installed in the front portion of the passenger compartment 1.

  The vehicle body strength member 41 is first installed by placing the vehicle body strength member 41 between the left and right side walls 3 of the passenger compartment 1 and above the floor portion 4, and using the stay 56, the intermediate portion of the vehicle body strength member main body 43 is placed on the floor portion. 4 is temporarily supported.

  Then, both end portions of the vehicle body strength member main body 43 are fastened and fixed to the left and right side walls 3 using the side brackets 51. Further, the lower end portion of the stay 56 is fastened and fixed to the floor portion 4. Further, the intermediate portion of the post bracket 55 is fastened and fixed to the front wall 2.

  When the vehicle body strength member 41 is thus installed, the steering column 16 disposed below the driver seat side portion 44 of the vehicle body strength member main body 43 is used by utilizing the column front mounting portion 52 and the column rear mounting portion 53. Fastened and fixed to the driver's seat side portion 44 at two front and rear positions.

  Finally, the instrument panel 5 is attached to the front portion of the passenger compartment 1, and the vehicle body strength member 41 is covered by the instrument panel 5 so that it cannot be seen from the outside.

  When an engine (not shown) is started, engine vibration is transmitted to the steering wheel 17 via the steering column 16.

  The vibrations of the steering column 16 and the steering wheel 17 are transmitted to the driver seat inner side portion 46 of the vehicle body strength member main body 43 through the column front portion mounting portion 52 and the column rear portion mounting portion 53. In the driver seat inner portion 46, the vibration and other input transmitted to the column rear mounting portion 53 is transmitted to the floor portion 4 via the component mounting portion 62 (component common mounting portion 64) and the stay 56. By receiving this, the floor 4 is prevented from bending (bending in the vertical direction) of the vehicle body strength member main body 43. Further, vibration and other inputs transmitted to the vehicle body strength member main body 43 are transmitted to the front wall 2 via the post bracket 55, and the front wall 2 receives this, thereby preventing the vehicle body strength member main body 43 from being twisted. Is done.

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

  (1) A vehicle body strength member 41 is disposed at the front portion of the vehicle compartment 1, and the vehicle body strength member 41 has a vehicle body strength member main body 43 extending in the vehicle width direction 7 and having a function as a transverse beam. The vehicle body strength member main body 43 has a driver seat side portion 44 located on the driver seat side and a passenger seat side portion 45 located on the passenger seat side. A front part of the column having a seat outer part 47 and a steering column 16 extending substantially in the vehicle longitudinal direction 15 can be attached to a part of the driver seat inner part 46 near the driver seat outer part 47 at two positions in the front and rear direction. A mounting portion 52 and a column rear mounting portion 53 are installed, and a stay 56 capable of supporting the vehicle body strength member main body 43 on the floor portion 4 of the passenger compartment 1 is provided near the passenger seat side portion 45 of the driver seat inner side portion 46. In the vehicle body strength member structure provided, the driver seat inner portion 46 is A rear part of the strength member 61 that can constitute a part of the cross beam has a part attachment part 62 that can attach a part etc., and the part attachment part 62 is integrally formed on the strength member part 61 so that the part etc. By providing the column rear mounting portion 53 integrally with the mounting portion 62, the following operational effects can be obtained.

  That is, since the column rear portion mounting portion 53 is provided in the component mounting portion 62 integrally formed with the strength member portion 61, the strength member portion 61 and the column rear mounting portion 53 are integrated. It is possible to reduce the number of parts and increase the rigidity between them. In addition, since the strength member portion 61 and the column rear portion attachment portion 53 are not welded, there is no welding distortion, and the component accuracy can be extremely increased.

  (2) The component mounting portion 62 is integrally extended to the boundary portion with the passenger seat side portion 45 along the strength member portion 61, thereby forming the component common mounting portion 64. On the other hand, since the stay attaching portion 63 to which the stay 56 can be attached is provided integrally, the following operational effects can be obtained.

  That is, since the stay mounting portion 63 is provided in the component common mounting portion 64 integrally formed with the strength member portion 61, the strength member portion 61 and the stay mounting portion 63 are integrated. In addition to reducing the number of parts, it is possible to increase the rigidity between them. In addition, since the strength member portion 61 and the stay attachment portion 63 are not welded, there is no welding distortion, and the component accuracy can be extremely increased.

  Since the steering column 16 and the stay 56 can be attached to the component common mounting portion 64, the input (such as vibration) from the steering column 16 is hardly passed to the strength member portion 61, and the component It becomes possible to transmit (escape) directly and efficiently to the floor portion 4 of the passenger compartment 1 via the common attachment portion 64 and the stay 56, and thus the transmission of the input to the strength member portion 61. Can be reduced. As a result, it is possible to reduce the cross-section and weight of the strength member portion 61 and the vehicle body strength member main body 43 as a whole. More specifically, the weight can be reduced by about 10% as a whole.

  (3) The column front portion mounting portion 52 is disposed on the front side of the strength member portion 61, and the column front portion mounting portion 52 is attached to the two surfaces of the front surface 61a and the lower surface 61b of the strength member portion 61. By mounting with the possible two-surface mounting surface portion 65, the following operational effects can be obtained.

  That is, by attaching the column front portion mounting portion 52 to the strength member portion 61 with two surfaces, the mounting strength of the column front portion mounting portion 52 with respect to the strength member portion 61 can be improved.

  (4) The stay 56 has a two-part simultaneous support part 66 that can be supported across the lower surfaces of the two parts of the stay attaching part 63 and the strength member part 61 at the upper end part, and the stay attaching part 63 By forming the two-part simultaneous supported part 67 supported by the two-part simultaneous support part 66 on the lower surface of the strength member part 61, the following operational effects can be obtained.

  That is, an input (such as vibration) from the steering column 16 and an (external) input to the strength member portion 61 are respectively provided by the stay 56 having the two-part simultaneous support portion 66 and the floor portion 4 of the passenger compartment 1. Therefore, it is possible to obtain a support state that is more advantageous for force transmission and has high strength. Accordingly, it is possible to further reduce the cross-section and the weight of the strength member portion 61 and the vehicle body strength member main body 43 as a whole.

  (5) Since the column front portion mounting portion 52 is integrally formed on the front side of the strength member portion 61, the following operational effects can be obtained.

  That is, since the column front portion mounting portion 52 is integrally formed with the strength member portion 61, the number of parts can be further reduced and the rigidity between them can be increased. Further, since the strength member portion 61 and the column front portion attachment portion 52 are not welded, there is no welding distortion, and the component accuracy can be extremely increased.

  (6) The column front mounting portion 52 integrally formed on the front side of the strength member portion 61 is integrally extended to the position of the stay mounting portion 63 along the strength member portion 61, and the stay 56 is formed at the upper end portion thereof. The stay mounting portion 63 has a three-part simultaneous support portion 68 that can be supported across the lower surfaces of the three portions of the strength member portion 61, the extension portion 52a of the column front portion mounting portion 52, and the stay mounting portion 63. The three-part simultaneous supported part 69 supported by the three-part simultaneous support part 68 is formed on the lower surface of the strength member part 61 and the extension part 52a of the column front part attachment part 52. Advantageous effects can be obtained.

  That is, an input (such as vibration) from the steering column 16, an (external) input to the strength member portion 61, and an (external) input to the column front mounting portion 52 are respectively provided on the floor of the vehicle compartment 1. Since it becomes possible to transmit directly and efficiently to the portion 4, it is possible to obtain a support state that is even more advantageous and strong in terms of force transmission. Accordingly, it is possible to further reduce the cross-section and weight of the strength member portion 61 and the vehicle body strength member main body 43 as a whole.

  (7) The driver seat inner portion 46 is configured as a separate connecting member 72 from the driver seat outer portion 47 and the passenger seat side portion 45, and the connecting member 72 connects the driver seat outer portion 47. By having the possible first connecting portion 73 and the second connecting portion 74 capable of connecting the passenger seat side portion 45, the following operational effects can be obtained.

  In other words, the driver seat outer side portion 47 and the passenger seat side portion 45 are connected to the driver seat inner side portion 46, which is the connecting member 72, via the first connecting portion 73 and the second connecting portion 74. Thus, the vehicle body strength member 41 can be easily handled as an assembly structure that can be easily assembled. Further, it is possible to easily reduce the weight and the price of the vehicle body strength member 41. Further, since welding is not required for assembling each of these components, the vehicle body strength member 41 having no welding distortion and extremely high component accuracy can be obtained.

  (8) The connecting member 72 includes at least three blocks 76 to 78 arranged substantially in parallel in the vehicle front-rear direction 15, and each of the blocks 76 to 78 has a closed cross-section portion 81 to 83 extending substantially in the vehicle width direction 7. By having the connecting member 72 in a continuous tube shape, the following operational effects can be obtained.

  That is, the connecting member 72 is formed in a continuous cylinder shape including at least three blocks 76 to 78 having closed cross-section portions 81 to 83, so that the connecting member 72 is small and highly rigid (particularly, the rigidity in the vehicle longitudinal direction 15 is high). ) The connecting member 72 can be obtained. Thereby, it is possible to reduce the weight of the connecting member 72 and the vehicle body strength member 41 as a whole. Moreover, since it is possible to give various functions and applications to the at least three blocks 76 to 78, the connecting member 72 can be configured with a high degree of freedom.

  (9) Since the closed cross-section portions 81 to 83 of the blocks 76 to 78 are configured to become larger toward the front side, the following operational effects can be obtained.

  That is, the closed cross-sectional portion 81 of the front block 76 is larger than the closed cross-sectional portion 82 of the intermediate block 77, and the closed cross-sectional portion 82 of the intermediate block 77 is larger than the closed cross-sectional portion 83 of the rear block 78. As described above, the structure is such that the connection member 72 is further reduced in size while being configured to gradually decrease from the front side toward the rear side, and the structure having the strongest rigidity with respect to the input from the front side is provided. Can do.

  (10) Since the upper surface portion 86 of the intermediate block 77 is inclined from the upper surface portion 85 of the front block 76 toward the upper surface portion 87 of the rear block 78, it is inclined as follows. The following effects can be obtained.

  That is, stress concentration can be avoided by eliminating the step between the upper surface portions of the blocks 76 to 78. In addition, by making the upper surface portion lower from the intermediate block 77 toward the rear block 78, a space for installing the instrument device 25 can be secured above them.

  (11) The closed cross-section portion 82 of the intermediate block 77 has a vertical surface portion 91 located at the boundary with the front block 76, an upper surface portion 86 that is an inclined surface having a downward slope, and lower side portions of the both surface portions 82 and 86. Due to the triangular cross-sectional shape portion 93 including the upwardly inclined partition wall surface portion 92 provided so as to connect the gaps, the following operational effects can be obtained.

  That is, even if the instrument device 25 is installed above the intermediate block 77, sufficient cross-sectional rigidity can be ensured.

  (12) A first connecting portion 73 capable of connecting the driver seat outer side portion 47 is provided in the closed cross-sectional portion 81 of the front block 76, and a second connecting portion 74 capable of connecting the passenger seat side portion 45 is provided. By providing the closed cross section 82 of the intermediate block 77, the following operational effects can be obtained.

  That is, by connecting the driver seat outer portion 47 and the passenger seat side portion 45 to different blocks 76 to 78, the cross section of the driver seat outer portion 47 is relatively large according to the required rigidity, and the assistant The cross section of the seat side portion 45 can be made relatively small.

  Further, the passenger seat side portion 45 can be offset from the driver seat outer side portion 47 to the rear of the vehicle front-rear direction 15. Thereby, for example, when the air-conditioning unit 107 is bypassed to the passenger seat side portion 45, the bypass unit 108 can be made smaller so that the air-conditioning unit 107 can be bypassed with a margin.

  Further, the closed cross-section portion 82 of the intermediate block 77 has a triangular cross-sectional shape portion 93, so that the passenger seat side portion 45 has a triangular cross-section, and the weight can be reduced while maintaining rigidity.

  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 according to an embodiment of the present invention. It is the perspective view which looked at FIG. 1 from the different direction. It is sectional drawing of the position of the column rear part attachment part of FIG. It is a rear view of the driver's seat side part of FIG. It is a partial expanded sectional view of FIG. It is sectional drawing of the position of the stay attaching part of FIG. FIG. 7 is a perspective view of FIG. 6. It is a schematic sectional drawing which shows the state which attached the other stay to FIG. It is sectional drawing similar to FIG. 3 which has the column rear part attachment part integrated. FIG. 10 is a cross-sectional view similar to FIG. 6 in the case of FIG. 9. It is sectional drawing of the connection part of FIG. It is a partial expanded sectional view of FIG. FIG. 6 is a partially enlarged cross-sectional view similar to FIG. 5 of a driver seat inner portion (connecting member) having a step upper surface. It is sectional drawing which shows the state which partitioned off the inside of the connection member. It is sectional drawing which shows the state which partitioned off the inside of the connection member differently from FIG. It is sectional drawing which shows the state which further divided FIG. It is a whole perspective view of the vehicle body strength member different from FIG. 1 concerning the Example of this invention. It is a perspective view of the vehicle body strength member main-body part of FIG. It is a top view of FIG. FIG. 18 is an overall perspective view of a vehicle body strength member different from FIGS. 1 and 17 according to an embodiment of the present invention. FIG. 21 is a partially enlarged rear view of FIG. 20. FIG. 23 is a side sectional view of FIG. 22. FIG. 21 is a side sectional view showing a manufacturing means for the vehicle body strength member of FIG. 20. It is a rear view which shows the attachment state of the vehicle body strength member used for description of a prior art example. It is a side view of FIG. It is a whole perspective view of the conventional vehicle body strength member. It is a side view of FIG. FIG. 3 is a partially enlarged view of FIG. 2. It is a disassembled perspective view which shows a column rear part mounting bracket and a cover member. It is the figure which looked at FIG. 29 from upper direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car compartment 4 Floor part 7 Vehicle width direction 15 Vehicle front-back direction 16 Steering column 41 Car body strength member 43 Car body strength member main body 44 Driver seat side part 45 Passenger seat side part 46 Driver seat inner side part 47 Driver seat outer side part 52 Column front part Attachment part 52a Extension part 53 Column rear part attachment part 56 Stay 61 Strength member part 61a Front face 61b Bottom face 62 Parts attachment part 63 Stay attachment part 64 Parts common attachment part 65 Two-surface corresponding attachment surface part 66 Two-part simultaneous support part 67 Two-part simultaneous support part Supported part 68 Three-part simultaneous support part 69 Three-part simultaneous supported part 72 Connecting member 73 First connecting part 74 Second connecting part 76 Block 77 Block 78 Block 81 Closed section 82 Closed section 83 Closed section 85 Upper surface portion 86 Upper surface portion 87 Upper surface portion 91 Vertical surface portion 92 Partition wall surface portion 93 Triangular cross-sectional shape portion

Claims (12)

A vehicle body strength member is disposed at the front of the passenger compartment,
The vehicle body strength member has a vehicle body strength member main body extending in the vehicle width direction and having a function as a cross beam,
The vehicle body strength member main body has a driver seat side portion located on the driver seat side and a passenger seat side portion located on the passenger seat side,
The driver's seat side portion has a driver's seat inner part and a driver's seat outer part,
A column front mounting portion and a column rear mounting portion that can attach a steering column extending substantially in the vehicle front-rear direction at two positions in the front-rear direction are installed on the inner portion of the driver seat near the outer side of the driver seat.
In the vehicle body strength member structure in which the stay that can support the vehicle body strength member main body on the floor portion of the passenger compartment is disposed on the passenger seat side portion near the passenger seat side portion,
The inner part of the driver's seat has a mounting part such as a part to which a part or the like can be attached at the rear part of the strength member part that can constitute a part of the transverse beam,
An attachment part such as a component is integrally formed on the strength member part,
A vehicle body strength member structure in which a column rear mounting portion is provided integrally with a component mounting portion. The component mounting portion is integrally extended to the boundary portion with the passenger seat side portion along the strength member portion, thereby being a component common mounting portion,
The vehicle body strength member part structure according to claim 1, wherein a stay attaching part capable of attaching a stay is integrally provided with respect to the common part attaching part. A column front mounting portion is disposed on the front side of the strength member portion, and
The vehicle body according to claim 1 or 2, wherein the column front mounting portion is mounted with a mounting surface portion corresponding to two surfaces that can be mounted on two surfaces of the front surface and the lower surface of the strength member portion. Strength member part structure. The stay has, at its upper end, a two-part simultaneous support portion that can be supported across the lower surfaces of the two portions of the stay attachment portion and the strength member portion,
4. The vehicle body strength member structure according to claim 3, wherein a two-part simultaneous supported portion supported by the two-part simultaneous support portion is formed on the lower surfaces of the stay attaching portion and the strength member portion.   3. The vehicle body strength member structure according to claim 1, wherein a column front mounting portion is integrally formed on the front side of the strength member portion. The column front mounting part integrally formed on the front side of the strength member part is integrally extended to the position of the stay mounting part along the strength member part,
The stay has, at its upper end, a three-part simultaneous support portion that can be supported across the lower surfaces of the three portions of the stay attachment portion, the strength member portion, and the extension portion of the column front attachment portion,
6. The three-part simultaneous supported part supported by the three-part simultaneous support part is formed on the lower surface of the stay attaching part, the strength member part, and the extended part of the column front part attaching part. The vehicle body strength member structure described. The driver seat inner portion is configured as a separate connecting member from the driver seat outer portion and the passenger seat side portion,
7. The connecting member according to claim 1, wherein the connecting member has a first connecting part capable of connecting the driver seat outer side part and a second connecting part capable of connecting the passenger seat side part. 2. The vehicle body strength member structure according to item 1. The connecting member comprises at least three blocks arranged in parallel in the vehicle longitudinal direction,
8. The vehicle body strength member structure according to claim 7, wherein each block has a closed cross section extending substantially in the vehicle width direction, whereby the connecting member has a continuous tube shape.   9. A vehicle body strength member structure according to claim 8, wherein the closed cross section of each block is configured to become larger toward the front side.   10. The upper surface portion of the intermediate block is an inclined surface inclined downward from the upper surface portion of the front block toward the upper surface portion of the rear block. Car body strength member structure.   The closed cross section of the intermediate block has a vertical surface located at the boundary with the front block, an upper surface formed as a downwardly inclined surface, and an upwardly inclined surface provided so as to connect the lower side of both surfaces. The vehicle body strength member portion structure according to claim 10, wherein the vehicle body strength member portion structure is a triangular cross-sectional shape portion including a partition wall surface portion. A first connecting portion capable of connecting the driver's seat outer side portion is provided in the closed cross section of the front block;
The vehicle body strength member portion according to any one of claims 7 to 11, wherein a second connecting portion capable of connecting the passenger seat side portion is provided in a closed cross-section portion of an intermediate block. Construction.

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