JP2017095015A - Support structure of steering support member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently assure rigidity of a steering support member while effectively utilizing a space in a front part of a passenger compartment.SOLUTION: A center stay 10 has left and right stay legs 11, 12, plural stay shelf parts 13a, 13b, and plural electronic components 14. The stay leg 11 is fixed to a bracket 21 and a floor panel 6, and extends in a vertical direction between a steering cross member 3 and the floor panel 6. Upper and lower stay shelf parts 13a, 13b extend in a vehicle width direction between the left and right stay legs 11, 12, and are fixed to a lower region 20 of the left and right stay legs 11, 12. A case 35 of the electronic component 14 partitions a storage space 32 which stores a component main body 36 in the interior thereof. A case lower plate part 35b is loaded on a top face of a right bead 6a of the floor panel 6 and is brought into surface contact with the top face. A case upper plate part 35a is fastened and fixed to a shelf body 34 in the state of being brought into surface contact with an underside of a lower stay shelf part 13b.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a support structure for a steering support member that extends in the vehicle width direction in front of a vehicle cabin and supports a steering.

  Patent Document 1 describes a pair of left and right steering support member stays that support a steering support member of a vehicle. A tunnel member for improving the floor rigidity is joined to a center portion in the vehicle width direction of the floor panel of the vehicle. The left and right steering support member stays are attached to the tunnel member via concave floor brackets. Steering support members are attached to upper portions of the left and right steering support member stays. A laterally hat-shaped rear interference bracket is provided between the left and right steering support member stays so as to extend in the vehicle width direction.

JP 2006-143031 A

  By the way, in order to suppress steering vibration during traveling of the vehicle, it is necessary to sufficiently ensure the rigidity of the steering support member. For this reason, in the case where the left and right steering support member stays and the laterally facing hat-shaped rear interference bracket described in Patent Document 1 cannot sufficiently secure the rigidity of the steering support member, the other is to improve the rigidity of the steering support member. It is conceivable to add a reinforcing member or the like. However, if a reinforcing member is added, the space in the front part of the passenger compartment becomes narrow by that amount, and it may be difficult to effectively use the space in the front part of the passenger compartment.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a support structure for a steering support member that can effectively use the space in the front portion of the passenger compartment and can sufficiently ensure the rigidity of the steering support member.

  In order to solve the above problems, the present invention provides a support structure for a steering support member that extends in the vehicle width direction at a front portion of a vehicle compartment to support a steering, and includes a pair of left and right vertical stays, a horizontal stay, and a case. With. The left and right vertical stays are located between the upper end of the stay fixed to the steering support member, the lower end of the stay fixed to the floor panel that defines the lower part of the passenger compartment, and the upper end of the stay and the lower end of the stay. And a stay intermediate portion extending in the up-down direction, and spaced apart from each other in the vehicle width direction central portion of the vehicle. Both ends of the horizontal stay are fixed to the middle part of the left and right vertical stays, extend in the vehicle width direction, and connect the left and right vertical stays. The case is integrally formed with a case upper end that contacts the lateral stay from below, a case lower end that contacts the floor panel from above, and a case intermediate portion that extends in the vertical direction and connects the case upper end and the case lower end. And is arranged between the left and right vertical stays and fixed to the horizontal stay and the floor panel, and a storage space for in-vehicle parts is defined between the case upper end and the case lower end.

  In the above configuration, the case has a case upper end contacting the lateral stay from below, a case lower end contacting the floor panel from above, and a case intermediate portion extending in the vertical direction to connect the case upper end and the case lower end. Therefore, the case can function as a reinforcing member for the lateral stay, and the rigidity of the lateral stay can be ensured by the case. For this reason, since the support rigidity of the horizontal stay that supports the left and right vertical stays is improved, the support rigidity of the left and right vertical stays that support the steering support member is also improved, and the rigidity of the steering support member can be sufficiently secured. .

  In addition, since a case (hereinafter simply referred to as an in-vehicle component case) that divides the storage space for in-vehicle components is disposed between the left and right vertical stays, the space between the left and right vertical stays is provided for in-vehicle components such as controllers and fuses It can be effectively used as an arrangement space.

  In addition, when the case of an existing in-vehicle component disposed between the left and right vertical stays is used as a reinforcing member for the horizontal stay, the rigidity of the steering support member can be secured while suppressing an increase in the number of components. The space in the front of the passenger compartment can be effectively used for other purposes as much as the increase in the number of parts is suppressed.

  The steering support member support structure may include a pair of left and right brackets. The left and right brackets are fixed to the steering support member and extend downward in the vehicle width direction. The left and right brackets are fixed to the steering support member and bent from the front edge of the bracket side surface to be one side in the vehicle width direction. And a bracket rear surface portion fixed to the steering support member and extending from the rear edge of the bracket side surface portion to the other side in the vehicle width direction. It arrange | positions in the position corresponding to an upper end part. The upper end portions of the left and right vertical stays include a stay side surface portion that intersects the vehicle width direction, a stay front surface portion that bends from the front end edge of the stay side surface portion and extends to one side in the vehicle width direction, and a stay side surface portion. A stay rear surface portion that bends from the rear edge and extends to the other side in the vehicle width direction, the stay front surface abuts on the bracket front surface from one side in the front-rear direction, and the stay rear surface portion front and rear on the bracket rear surface portion It is fixed to the left and right brackets while being in contact with one side of the direction.

  In the above configuration, the stay upper ends of the left and right vertical stays are such that the front surface of the stay is in contact with the front surface of the bracket from one side in the front-rear direction and the rear surface of the stay is in contact with the rear surface of the bracket from one side in the front-rear direction. Fixed to the left and right brackets. That is, since the upper end of the stay of the left and right vertical stays can be fixed to the left and right brackets from one side in the front-rear direction, for example, the left and right vertical stays and brackets have a U-shaped cross section. Unlike the left and right vertical stays, the horizontal stay and the case are fixed and unitized, and then the upper end portions of the left and right vertical stays can be fixed to the left and right brackets. In this way, the horizontal stay and case can be fixed to the left and right vertical stays to form a unit and then fixed to the left and right brackets, so that the left and right vertical stays (including the horizontal stay and case) can be attached. Workability is improved.

  According to the present invention, it is possible to effectively use the space in the front part of the vehicle compartment and sufficiently ensure the rigidity of the steering support member.

It is a schematic perspective view of the support structure of the steering support member which concerns on this invention. It is the rear view of the center stay which looked at FIG. 1 from the II direction. It is an exploded view of the principal part of a center stay. FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 1.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction. Moreover, in the following description, the left-right direction means the left-right direction with the vehicle facing forward.

  As shown in FIG. 1, the support structure according to the present embodiment is a support structure of a steering cross member (steering support member) 3 that extends in the vehicle width direction at the front portion of a cabin 2 of a cab 4 of a vehicle 1 such as a truck. A pair of left and right brackets 21 and 22 and a center stay 10 are provided.

  The cab 4 of the vehicle 1 includes a floor panel 6 that defines a lower part of the passenger compartment 2, a dash panel 9 that stands from the front edge of the floor panel 6 and defines the front of the passenger compartment 2, and the floor panel 6 and the dash panel 9. And a pair of left and right side panels 5 joined to both ends of the vehicle width direction. A pair of left and right beads 6 a extending in the front-rear direction are formed at the center in the vehicle width direction of the front portion of the floor panel 6. The left and right beads 6a are spaced apart from each other in the vehicle width direction, protrude upward, and extend in the front-rear direction.

  The steering cross member 3 is disposed behind the dash panel 9 of the cab 4 and ahead of the steering unit (steering) 7 standing from the floor panel 6, and is spaced upward from the floor panel 6 and extends in the vehicle width direction. It is a metal cylindrical rod-shaped member, and both ends thereof are fixed to the left and right side panels 5 of the cab 4. The steering unit 7 stands at the front of the passenger compartment 2 (right side in this embodiment) of the passenger compartment 2 and is fixed to the steering cross member 3 via the bracket 8. In addition to the steering unit 7, a plurality of in-vehicle devices (not shown) such as an air conditioning unit and an instrument panel are fixed to the steering cross member 3. The steering cross member 3 supports the steering unit 7, suppresses vibration of the steering unit 7, and supports the plurality of in-vehicle devices.

  As shown in FIGS. 1 and 4, the left and right brackets 21 and 22 are formed by bending a metal plate and are spaced apart from each other in the vehicle width direction at the center of the steering cross member 3 in the vehicle width direction. Is done. The left and right brackets 21 and 22 are fixed to the rear lower surface of the surface of the steering cross member 3 by welding, and extend rearward and downward from the steering cross member 3. Each of the left and right brackets 21 and 22 is bent from the front side edge of the bracket side plate portion (bracket side portion) 23 and the bracket side plate portion 23 that intersects the vehicle width direction, and is outside in the vehicle width direction (one side in the vehicle width direction). Bracket front plate portion (bracket front portion) 24 extending to the rear, and bracket rear plate portion (bracket rear surface portion) 25 bent from the rear end edge of the bracket side plate portion 23 and extending inward in the vehicle width direction (the other side in the vehicle width direction). Are formed in a cross-sectional crank shape. Bolt insertion holes (not shown) are formed in the bracket front plate portion 24 and the bracket rear plate portion 25, respectively.

  As shown in FIGS. 1 to 4, the center stay 10 is a support member for supporting the steering cross member 3 from below, and is disposed at the center in the vehicle width direction of the vehicle 1 so as to be separated from each other in the left-right direction. A pair of left and right stay legs (longitudinal stays) 11 and 12, and a plurality of (in this embodiment, two upper and lower) stay shelf parts (horizontal stays) 13a disposed between the left and right stay leg parts 11 and 12, 13b and a plurality (four in this embodiment) of electronic components 14 are formed in a ladder shape extending in the vertical direction between the steering cross member 3 and the floor panel 6. The left and right stay legs 11 and 12 are provided symmetrically on both sides of the center stay 10 in the vehicle width direction and have substantially the same configuration. Therefore, the left stay leg 11 will be described below, Description is omitted.

  The left stay leg portion 11 has a stay upper end portion 16, a stay intermediate portion 15, and a stay lower end portion 17 integrally formed by bending a plate body between the steering cross member 3 and the floor panel 6. Extends vertically. The stay upper end 16 is fixed to the left bracket 21. The stay intermediate portion 15 has an upper region 19 and a lower region 20, and extends in the vertical direction between the stay upper end portion 16 and the stay lower end portion 17 to connect the stay upper end portion 16 and the stay lower end portion 17. The upper region 19 of the stay intermediate portion 15 continues from the upper end portion 16 of the stay and extends linearly rearward and downward along the extending direction of the left bracket 21. The lower region 20 of the stay intermediate portion 15 is bent from the lower end of the upper region 19 and extends linearly to the vicinity of the floor panel 6 in the lower front direction. The stay lower end portion 17 is bent from the lower end of the lower region 20 and extends rearward along the floor panel 6, and the rear end portion thereof is fixed to the floor panel 6. The lower region 20 is formed longer than the upper region 19.

  The left stay leg 11 includes a stay side plate portion (stay side surface portion) 18, a stay front plate portion (stay front surface portion) 26, a stay rear plate portion (stay rear surface portion) 27, a stay lower plate portion 28, The stay upper plate portion 29 is integrally formed, and is formed in a cross-sectional crank shape from the upper end portion 16 of the stay to the lower end portion 17 of the stay. The stay side plate 18 is a plate that intersects the vehicle width direction, and extends continuously from the stay upper end 16 to the stay lower end 17 via the stay intermediate portion 15. The stay front plate portion 26 is a plate that intersects with the front-rear direction. The stay front plate portion 26 is bent from the front end edge of the stay side plate portion 18 of the stay upper end portion 16 and the stay intermediate portion 15 and is outside in the vehicle width direction. ). The post-stay plate 27 is a plate that intersects with the front-rear direction. The post-stay plate 27 is bent from the rear edge of the stay upper plate 16 and the stay-side plate 18 of the stay intermediate portion 15 to the inside in the vehicle width direction. Side). The stay lower plate portion 28 is a plate body that intersects the vertical direction, and continuously extends rearward from the lower end of the stay front plate portion 26 along the lower end edge of the stay side plate portion 18 of the stay lower end portion 17. The stay upper plate portion 29 is a plate body that intersects the vertical direction, and continuously extends rearward from the lower end of the stay rear plate portion 27 along the upper edge of the stay side plate portion 18 of the stay lower end portion 17. Bolt insertion holes (not shown) are respectively formed in the stay front plate portion 26 and the stay rear plate portion 27 of the stay upper end portion 16. In addition, bolt insertion holes (not shown) are formed in the rear end portions of the stay lower plate portion 28 and the stay upper plate portion 29, respectively. The distance between the stay side plate portions 18 of the left and right stay leg portions 11 and 12 is slightly larger than the distance between the bracket side plate portions 23 of the left and right brackets 21 and 22, and the stay of the left and right stay leg portions 11 and 12. The distance at which the side plate portion 18 contacts the bracket side plate portion 23 of the left and right brackets 21 and 22 from the outside in the vehicle width direction is set.

  As shown in FIG. 4, the stay front plate portion 26 of the stay upper end portion 16 of the left stay leg portion 11 overlaps the bracket front plate portion 24 of the left bracket 21 from the rear (one side in the front-rear direction) and comes into surface contact. In this state, the bolt 30 and the nut 31 are fastened and fixed. The stay rear plate portion 27 of the stay upper end portion 16 of the left stay leg portion 11 overlaps with the bracket rear plate portion 25 of the left bracket 21 from the rear (one side in the front-rear direction), and is in surface contact with the bolt 30 and The nut 31 is fastened and fixed. In the state where the stay upper end 16 of the left stay leg 11 is fastened and fixed to the left bracket 21, the stay side plate 18 of the stay upper end 16 of the left stay leg 11 is the bracket side plate of the left bracket 21. 23 is in surface contact with the outer side in the vehicle width direction.

  As shown in FIG. 2, the stay lower plate portion 28 of the stay lower end portion 17 of the left stay leg portion 11 is located on the floor panel 6 adjacent to the left bead 6 a on the outer side in the vehicle width direction of the left bead 6 a of the floor panel 6. The rear end portion of the stay lower plate portion 28 is fastened and fixed to the floor panel 6 by bolts and nuts (not shown) in a state where the upper surface of the stay overlaps from above and comes into surface contact. The upper stay plate 29 at the lower end 17 of the left stay leg 11 is in contact with the upper surface of the bead 6a on the left side of the floor panel 6 in a state of overlapping the surface from above and in surface contact. The rear end portion of the plate portion 29 is fastened and fixed to the floor panel 6 by bolts and nuts (not shown). In a state where the stay lower plate portion 28 and the stay upper plate portion 29 are fastened and fixed to the floor panel 6, the stay side plate portion 18 of the stay lower end portion 17 of the left stay leg portion 11 is outside the vehicle width direction of the left bead 6a. It is in surface contact with the side from the outside in the vehicle width direction.

  The upper and lower stay shelf portions 13a and 13b are respectively arranged with a shelf main body 34 that is spaced apart from each other between the lower regions 20 of the stay intermediate portions 15 of the left and right stay leg portions 11 and 12 and extends in the vehicle width direction. The rack body 34 is bent integrally from both ends in the vehicle width direction and extends upward, and integrally includes fixing portions 33 at both left and right end portions fixed to the lower regions 20 of the left and right stay leg portions 11 and 12. The shelf body 34 includes a lower plate portion 34a that intersects the vertical direction and extends in the vehicle width direction, a front plate portion 34b that rises from the front end edge of the lower plate portion 34a, and a rear plate that stands from the rear end edge of the lower plate portion 34a. It has the board part 34c integrally. The left and right fixing portions 33 are disposed along the inner side surface in the vehicle width direction of the stay side plate portion 18 in the lower region 20 of the left and right stay leg portions 11 and 12 and are fixed to the stay side plate portion 18. The lower stay shelf 13b is disposed at a position spaced upward from the upper surface of the floor panel 6, and the upper stay shelf 13a is disposed at a position spaced upward from the lower stay shelf 13b.

  As shown in FIGS. 2 and 3, the plurality (four in this embodiment) of electronic components 14 each have a component main body (on-vehicle component) 36 and a case 35 for housing the component main body 36. The component main body 36 is an existing in-vehicle component mounted on the vehicle 1 such as a controller for engine control and a fuse. The case 35 includes a case upper plate portion (case upper end portion) 35a, a case lower plate portion (case lower end portion) 35b, a case front plate portion (case intermediate portion) 35c, a case rear plate portion (case intermediate portion) 35d, The case side plate portions (case intermediate portions) 35e and 35f are integrally formed, are formed in a box shape, and define a storage space 32 in which the component main body 36 is stored. The storage space 32 has a case upper plate 35a on the upper side, a case lower plate 35b on the lower side, a case front plate 35c on the front, a case rear plate 35d on the rear, and a left case side plate on the inner side in the vehicle width direction. The outer side in the vehicle width direction is partitioned into a right side case side plate portion 35f by the portion 35e. The component body 36 is stored in the storage space 32. Two electronic components 14a and 14b among the four electronic components 14 are vehicle widths along the left and right stay legs 11 and 12 in the space 37 between the floor panel 6 and the lower stay shelf 13b. The remaining two electronic components 14c and 14d are arranged along the left and right stay legs 11 and 12 in the space 38 between the lower stay shelf 13b and the upper stay shelf 13a. Are arranged on both sides in the vehicle width direction. Since the four electronic components 14 are symmetrically provided on the left and right of the center stay 10 and have substantially the same configuration, the upper and lower electronic components 14d and 14b on the right side will be described below. The description of the electronic components 14c and 14a is omitted.

  The lower electronic component 14b is disposed between the upper surface of the right bead 6a of the floor panel 6 and the shelf body 34 of the lower stay shelf 13b. The case lower plate portion 35b of the case 35 (hereinafter referred to as case 35D) of the lower electronic component 14b is formed in a rectangular shape that is long in the front-rear direction and intersects with the vertical direction, and the right bead 6a of the floor panel 6 is Of the upper surface, the right stay leg portion 12 is placed in a region on the inner side in the vehicle width direction than the stay upper plate portion 29 and comes into surface contact with the upper surface of the right bead 6a. The outer edge in the vehicle width direction of the case lower plate portion 35b of the case 35D abuts on the inner edge 41 in the vehicle width direction of the upper stay plate portion 29, and the inner edge in the vehicle width direction of the case lower plate portion 35b is on the right side. The bead 6a is disposed at substantially the same position in the vehicle width direction as the inner surface in the vehicle width direction. The case upper plate portion 35a of the case 35D is formed in a rectangular shape that intersects with the vertical direction and is long in the front-rear direction and is substantially the same size as the case lower plate portion 35b. The lower stay shelf portion is in contact with the lower edge of the lower plate portion 34a of the shelf main body 34 of the lower stay shelf portion 13b by the bolt 39 in contact with the inner edge 42 of the plate portion 27 in the vehicle width direction. It is fastened and fixed to the shelf body 34 of 13b. The case front plate portion 35c of the case 35D is formed in a rectangular shape that intersects with the front-rear direction and is long in the vertical direction, and connects the front end edge of the case lower plate portion 35b and the front end edge of the case upper plate portion 35a. The case rear plate portion 35d of the case 35D is formed in a rectangular shape that intersects with the front-rear direction and is long in the vertical direction, and connects the rear end edge of the case lower plate portion 35b and the rear end edge of the case upper plate portion 35a. The case side plate portion 35f on the right side of the case 35D is formed in a rectangular shape that intersects with the vehicle width direction, and includes a vehicle width direction outer edge of the case lower plate portion 35b and a vehicle width direction outer edge of the case upper plate portion 35a. Connected and abuts the inner edge 42 in the vehicle width direction of the stay rear plate portion 27 in the lower region 20 of the right stay leg portion 12. The case side plate portion 35e on the left side of the case 35D is formed in a rectangular shape that intersects with the vehicle width direction, and includes a vehicle width direction inner end edge of the case lower plate portion 35b and a vehicle width direction inner end edge of the case upper plate portion 35a. They are connected and fixed to the floor panel 6 via the fixing member 40. The fixing member 40 integrally has a vertical plate portion 40a and a horizontal plate portion 40b that extends from the lower end of the vertical plate portion 40a so as to be bent inward in the vehicle width direction, and is formed in a substantially L shape. The vertical plate portion 40a of the fixing member 40 is disposed at the lower front end of the case side plate portion 35e on the left side of the case 35D (in front of the lower stay shelf portion 13b), and is fastened and fixed to the left case side plate portion 35e by bolts 43. Then, it extends downward to the floor panel 6 along the inner side surface in the vehicle width direction of the case side plate portion 35e and the inner side surface in the vehicle width direction of the right bead 6a. The horizontal plate portion 40b of the fixing member 40 is fastened and fixed to the floor panel 6 by bolts (not shown) while being in surface contact with the floor panel 6. The length in the vertical direction of the case front plate portion 35c, the case rear plate portion 35d, and the left and right case side plate portions 35e and 35f of the case 35D is the upper surface of the right bead 6a and the shelf main body 34 of the lower stay shelf portion 13b. Is set to a length substantially the same as the distance to the lower surface of

  The upper electronic component 14d is located between the shelf main body 34 of the lower stay shelf 13b and the shelf main body 34 of the upper stay shelf 13a, with the shelf main body 34 of the lower stay shelf 13b interposed therebetween. Is disposed above the electronic component 14b on the side. A case lower plate portion 35b of a case 35 (hereinafter referred to as case 35U) of the upper electronic component 14d is formed in a rectangular shape that is long in the front-rear direction and intersects with the vertical direction, and the shelf body of the lower stay shelf portion 13b. 34 is placed on the shelf body 34 of the lower stay shelf 13b in contact with the upper edge of the front plate 34b and the rear plate 34c. The outer edge in the vehicle width direction of the case lower plate portion 35b of the case 35U is in contact with the inner edge 42 in the vehicle width direction of the post-stay plate portion 27 in the lower region 20 of the right stay leg portion 12. The case upper plate portion 35a of the case 35U is formed in a rectangular shape that intersects with the vertical direction and is long in the front-rear direction and is substantially the same size as the case lower plate portion 35b. The upper stay shelf 13a is in contact with the lower edge 34a of the lower shelf 34a of the upper stay shelf 13a by the bolt 45 in contact with the inner edge 42 of the plate 27 in the vehicle width direction and in surface contact with the lower surface 34a of the lower shelf 34a. The shelf body 34 is fastened and fixed. The case front plate portion 35c of the case 35U is formed in a rectangular shape that intersects with the front-rear direction and is long in the vertical direction, and connects the front end edge of the case lower plate portion 35b and the front end edge of the case upper plate portion 35a. The case rear plate portion 35d of the case 35U is formed in a rectangular shape that intersects with the front-rear direction and is long in the vertical direction, and connects the rear end edge of the case lower plate portion 35b and the rear end edge of the case upper plate portion 35a. The case side plate portion 35f on the right side of the case 35U is formed in a rectangular shape that intersects with the vehicle width direction, and includes a vehicle width direction outer edge of the case lower plate portion 35b and a vehicle width direction outer edge of the case upper plate portion 35a. Connected and abuts the inner edge 42 in the vehicle width direction of the stay rear plate portion 27 in the lower region 20 of the right stay leg portion 12. The case side plate portion 35e on the left side of the case 35U is formed in a rectangular shape that intersects with the vehicle width direction, and includes a vehicle width direction inner end edge of the case lower plate portion 35b and a vehicle width direction inner end edge of the case upper plate portion 35a. They are connected and fastened and fixed to the lower plate portion 34 a of the shelf body 34 of the lower stay shelf portion 13 b via the fixing member 46. The fixing member 46 integrally has a vertical plate portion 46a and a horizontal plate portion 46b that is bent and extended inward in the vehicle width direction from the lower end of the vertical plate portion 46a, and is formed in a substantially L shape. The vertical plate portion 46a of the fixing member 46 is fastened and fixed to the case side plate portion 35e on the left side of the case 35U by a bolt 47, and is located below the case lower plate portion 35b along the inner side surface in the vehicle width direction of the case side plate portion 35e. The side stay shelf 13b extends to the lower plate portion 34a of the shelf body 34. The horizontal plate portion 46b of the fixing member 46 is in surface contact with the lower plate portion 34a of the shelf main body 34 of the lower stay shelf portion 13b by bolts 48 with respect to the shelf main body 34 of the lower stay shelf portion 13b. Fastened and fixed. The length in the vertical direction of the case front plate portion 35c, the case rear plate portion 35d, and the left and right case side plate portions 35e and 35f of the case 35U is the same as the front plate portion 34b and the rear of the shelf body 34 of the lower stay shelf portion 13b. The distance between the upper edge of the plate portion 34c and the lower surface of the lower plate portion 34a of the shelf body 34 of the upper stay shelf portion 13a is set to be approximately the same.

  When the center stay 10 is attached to the vehicle body, the left and right stay leg portions 11 and 12, the upper and lower stay shelf portions 13a and 13b, and the four electronic components 14 are unitized (integrated) and then unitized. The center stay 10 is fixed to the floor panel 6 and the steering cross member 3.

  When unitizing the center stay 10, first, the left and right fixing portions 33 of the lower stay shelf 13 b are fixed to the left and right stay legs 11 and 12. Next, the lower electronic components 14a and 14b are fixed from below to the shelf main body 34 of the lower stay shelf 13b, and the upper electronic components 14c and 14d are fixed from above. Finally, the left and right fixing portions 33 of the upper stay shelf 13a are fixed to the pair of left and right stay legs 11 and 12, and are fixed to the upper electronic components 14c and 14d, so that the center stay 10 is unitized. To do.

  When the unitized center stay 10 is fixed to the floor panel 6 and the steering cross member 3, the left and right brackets 21 and 22 fixed to the steering cross member 3 are rearward (one side in the front-rear direction). The stay upper ends 16 of the left and right stay legs 11 and 12 of the center stay 10 are brought close to each other. The stay side plate portions 18 of the left and right stay leg portions 11 and 12 are moved forward along the vehicle width direction outer side surface of the bracket side plate portion 23 of the left and right brackets 21 and 22, so that the stay of the left and right stay leg portions 11 and 12 is stayed. The front plate part 26 is brought into contact with the bracket front plate part 24 of the left and right brackets 21 and 22 from the rear, and the stay rear plate part 27 of the left and right stay legs 11 and 12 is connected to the bracket rear plate part of the left and right brackets 21 and 22. It is made to contact 25 from back. Then, the stay front plate portion 26 of the left and right stay leg portions 11 and 12 and the bracket front plate portion 24 of the left and right brackets 21 and 22 are fastened and fixed by bolts 30 and nuts 31. The stay rear plate portion 27 and the bracket rear plate portions 25 of the left and right brackets 21 and 22 are fastened and fixed by bolts 30 and nuts 31, and the stay lower plate portion 28 and the floor panel 6 of the left and right stay leg portions 11 and 12 are fixed. Are fastened and fixed by bolts and nuts (not shown), and the upper stay plate portions 29 of the left and right stay leg portions 11 and 12 and the beads 6a of the floor panel 6 are fastened and fixed by bolts and nuts (not shown).

  In the support structure of the steering cross member 3 configured as described above, the case upper plate portion 35a of the lower electronic components 14a and 14b is fixed to the lower stay shelf 13b, and the lower electronic components 14a and 14b. The case lower plate portion 35b is fixed to the floor panel 6, and the case front plate portion 35c, the case rear plate portion 35d, and the left and right case side plate portions 35e, 35f of the lower electronic components 14a, 14b are the case upper plate. The part 35a and the case lower plate part 35b are connected. Therefore, the lower stay shelf 13b can be supported and reinforced from below by the case 35 of the lower electronic components 14a and 14b, and the rigidity of the lower stay shelf 13b can be ensured.

  Further, the case upper plate portion 35a of the upper electronic components 14c and 14d is fixed to the upper stay shelf portion 13a, and the case lower plate portion 35b of the upper electronic components 14c and 14d is fixed to the lower stay shelf portion 13b. The case front plate portion 35c, the case rear plate portion 35d, and the left and right case side plate portions 35e and 35f of the upper electronic components 14c and 14d connect the case upper plate portion 35a and the case lower plate portion 35b. For this reason, the lower stay shelf 13b and the upper stay shelf 13a can be supported and reinforced by the case 35 of the upper electronic components 14c and 14d, and the lower stay shelf 13b and the upper stay shelf 13b can be reinforced. The rigidity of the shelf 13a can be ensured.

  Accordingly, since the support rigidity of the upper and lower stay shelf parts 13a and 13b that support the left and right stay leg parts 11 and 12 is improved, the support rigidity of the left and right stay leg parts 11 and 12 that support the steering cross member 3 is also improved. The rigidity of the steering cross member 3 can be sufficiently secured.

  One of the left and right case side plate portions 35e and 35f of each electronic component 14a to 14d is a post-stay plate portion 27 in the lower region 20 of the stay intermediate portion 15 of the left and right stay leg portions 11 and 12. Is in contact with the inner end edge 42 in the vehicle width direction. Therefore, the left and right stay leg portions 11 and 12 can be supported and reinforced by the case 35 of each electronic component 14a to 14d, and the rigidity of the left and right stay leg portions 11 and 12 can be ensured. Therefore, it is possible to improve the support rigidity of the left and right stay leg portions 11 and 12 that support the steering cross member 3 and sufficiently ensure the rigidity of the steering cross member 3.

  Further, the stay lower end portions 17 of the left and right stay leg portions 11 and 12 are bent from the lower end of the lower region 20 of the stay intermediate portion 15 and extend rearward along the floor panel 6, and the rear end portions thereof are bolts and nuts (not shown). Is omitted). The fixing member 40 for fixing the lower electronic components 14a and 14b to the floor panel 6 is a front lower portion of the case side plate portion 35e on the inner side in the vehicle width direction of the case 35D (front side of the lower stay shelf portion 13b). ) And fastened to the floor panel 6. Thus, the rear end portion of the stay lower end portion 17 that fixes the left and right stay leg portions 11 and 12 to the floor panel 6, and the fixing member that fixes the lower electronic components 14 a and 14 b to the floor panel 6. 40 is disposed at different positions in the front-rear direction, so that the support rigidity of the center stay 10 against the force in the front-rear direction can be ensured, and the rigidity of the steering cross member 3 can be sufficiently ensured.

  Also, a rear end portion of the stay lower end portion 17 that fixes the left and right stay leg portions 11 and 12 to the floor panel 6, and a fixing member 40 that fixes the lower electronic components 14 a and 14 b to the floor panel 6. However, since they are arranged at different positions in the vehicle width direction, the support rigidity of the center stay 10 against the force in the vehicle width direction can be ensured, and the rigidity of the steering cross member 3 can be sufficiently ensured.

  Also, since the left and right ends of the upper and lower stay shelf portions 13a and 13b are supported by the electronic components 14a to 14d, unlike the case where only the left and right of the upper and lower stay shelf portions 13a and 13b are supported, The upper and lower stay shelves 13a and 13b can be supported with a good left-right balance.

  In addition, each of the electronic components 14a to 14d is disposed between the left and right stay legs 11 and 12. Thus, the space between the left and right stay legs 11 and 12 can be used effectively as the arrangement space for the electronic components 14a to 14d having the component main bodies 36 such as controllers and fuses.

  In addition, since the case 35 of the component main body 36 such as a controller or fuse, which is an existing on-vehicle component, functions as a reinforcing member for the steering cross member 3, it is possible to secure the rigidity of the steering cross member 3 while suppressing an increase in the number of components. In addition, the space in the front part of the passenger compartment 2 can be effectively used for other purposes as much as the increase in the number of parts is suppressed.

  In addition, since the stay upper ends 16 and the left and right brackets 21 and 22 of the left and right stay legs 11 and 12 are formed in a cross-sectional crank shape, the center stay 10 is unitized as described above, and then the left and right stay legs The stay upper end portions 16 of 11 and 12 can be fixed to the left and right brackets 21 and 22 by approaching the left and right brackets 21 and 22 from the rear. For this reason, the workability of the attaching operation of the center stay 10 is improved.

  In the present embodiment, the left and right stay legs 11, 12 have a crank-shaped cross section having a stay front plate portion 26, a stay side plate portion 18, and a stay rear plate portion 27 from the stay upper end portion 16 to the stay lower end portion 17. However, at least the stay upper end portions 16 of the left and right stay leg portions 11 and 12 may be formed in a cross-sectional crank shape.

  In the present embodiment, the stay front plate portions 26 of the left and right stay leg portions 11 and 12 are bent from the front edge of the stay side plate portion 18 and extended outward in the vehicle width direction (one side in the vehicle width direction). The plate portion 27 is bent from the rear end edge of the stay side plate portion 18 and extends inward in the vehicle width direction (the other side in the vehicle width direction), but the stay front plate portion 26 is bent from the front end edge of the stay side plate portion 18. It extends to the vehicle width direction inner side (one side in the vehicle width direction), and the stay rear plate portion 27 may be bent from the rear edge of the stay side plate portion 18 and extend to the vehicle width direction outer side (the other side in the vehicle width direction). . In this case, the bracket front plate portion 24 of the left and right brackets 21 and 22 is bent from the front end edge of the bracket side plate portion 23 to extend inward in the vehicle width direction (one side in the vehicle width direction), and the bracket rear plate portion 25 is It bends from the rear end edge of the bracket side plate portion 23 and extends outward in the vehicle width direction (the other side in the vehicle width direction).

  In the present embodiment, the distance between the stay side plates 18 of the left and right stay legs 11 and 12 is set slightly larger than the distance between the bracket side plates 23 of the left and right brackets 21 and 22, The stay upper ends 16 of the legs 11 and 12 are fixed to the left and right brackets 21 and 22 from the rear (one side in the front-rear direction), but are not limited thereto. For example, the distance between the stay side plate portions 18 of the left and right stay leg portions 11 and 12 is set slightly smaller than the distance between the bracket side plate portions 23 of the left and right brackets 21 and 22, and the left and right stay leg portions 11 and 12 are set. The upper end 16 of the stay may be fixed to the left and right brackets 21 and 22 from the front (one side in the front-rear direction). Further, as described above, the stay front plate portion 26 is bent from the front end edge of the stay side plate portion 18 and extended inward in the vehicle width direction, and the stay rear plate portion 27 is bent from the rear end edge of the stay side plate portion 18 to When extending outward in the width direction, the distance between the stay side plate portions 18 of the left and right stay leg portions 11, 12 is set slightly wider than the distance between the bracket side plate portions 23 of the left and right brackets 21, 22; The stay upper ends 16 of the left and right stay legs 11 and 12 may be fixed to the left and right brackets 21 and 22 by approaching them from the front (one side in the front-rear direction). The distance between the 12 stay side plate portions 18 is set slightly smaller than the distance between the bracket side plate portions 23 of the left and right brackets 21 and 22, and the stay upper end portions 16 of the left and right stay leg portions 11 and 12 are set to the left and right brackets. 21, 2 It may be fixed close from the rear (one side in the longitudinal direction) with respect to.

  In this embodiment, the case 35 of the electronic component 14 is brought into contact with one stay leg of the left and right stay legs 11, 12, but the case 35 is brought into contact with both the left and right stay legs 11, 12. The electronic component 14 may be disposed between the left and right stay legs 11 and 12 without being in contact with each other. For example, the electronic component 14 may be disposed in the center in the vehicle width direction between the left and right stay legs 11 and 12 and separated from both the left and right stay legs 11 and 12.

  In the present embodiment, the center stay 10 is provided with a plurality of (in this embodiment, two upper and lower) stay shelf portions 13a and 13b. However, at least one stay shelf portion may be provided. For example, the center stay 10 may be provided with only one stay shelf or three or more stay shelves.

  In the present embodiment, a plurality of (four in the present embodiment) electronic components 14 are provided in the center stay 10. However, the electronic components 14 are arranged between the floor panel 6 and the stay shelves. It is only necessary to provide at least one electronic component 14 that is fixed to the shelf. For example, when two or more stay shelves are provided, at least one electronic component fixed to the floor panel 6 and the lowermost stay shelf between the floor panel 6 and the lowermost stay shelf. 14 may be provided.

  Moreover, the component main body 36 of the electronic component 14 is not limited to a controller or a fuse, and may be various on-vehicle components. For example, the component main body 36 of the electronic component 14 may be an audio device (on-vehicle component) or the like.

  Further, in the present embodiment, the upper region 19 and the lower region 20 having a different extension direction from the upper region 19 are provided in the stay intermediate portion 15 of the left and right stay legs 11 and 12, but the present invention is not limited to this. It is not something. For example, the stay intermediate portion 15 extending linearly may be used.

  In the present embodiment, the stay lower end portions 17 of the left and right stay leg portions 11 and 12 are bent from the lower end of the stay intermediate portion 15 and extended rearward. However, the present invention is not limited to this. 17 may be fixed to the floor panel 6.

  In addition, a fixing position (in this embodiment, the fixing member 40) for fixing the lower electronic components 14a, 14b to the floor panel 6 is fixed, and the left and right stay legs 11, 12 are fixed to the floor panel 6. Although it arrange | positions ahead rather than the fixed position (in this embodiment, the rear-end part of the stay lower end part 17), it is not limited to this. For example, the fixing position for fixing the lower electronic components 14 a and 14 b to the floor panel 6 may be arranged behind the fixing position for fixing the left and right stay legs 11 and 12 to the floor panel 6. Alternatively, the left and right stay legs 11 and 12 may be arranged at substantially the same position in the front-rear direction as the fixing position for fixing the left and right stay legs 11 and 12 to the floor panel 6.

  In the present embodiment, the left and right brackets 21 and 22 are fixed to the steering cross member 3, and the stay upper end 16 of the center stay 10 is fixed to the steering cross member 3 via the left and right brackets 21 and 22. However, the present invention is not limited to this. For example, the stay upper end 16 of the center stay 10 may be directly fixed to the steering cross member 3 without providing the left and right brackets 21, 22, or a shape different from the left and right brackets 21, 22. It may be indirectly fixed to the steering cross member 3 via the bracket.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this invention. That is, it is needless to say that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  For example, in the above embodiment, the support structure according to the present invention is applied to the support structure of the steering cross member 3 of the vehicle 1 such as a truck, but the steering cross member of various vehicles other than the truck (for example, passenger cars, buses, etc.). It can be applied to any support structure.

1: Vehicle 2: Vehicle compartment 3: Steering cross member (steering support member)
6: Floor panel 7: Steering unit (steering)
10: Center stay 11, 12: One pair of left and right stay legs (one pair of left and right vertical stays)
13a, 13b: Upper and lower stay shelves (horizontal stay)
14: Electronic component 15: Stay intermediate portion 16: Stay upper end portion 17: Stay lower end portion 18: Stay side plate portion (stay side portion)
21 and 22: a pair of left and right brackets 23: bracket side plate (bracket side surface)
24: Bracket front plate (bracket front)
25: Bracket rear plate (bracket rear surface)
26: Stay front plate (stay front)
27: Back plate part of stay (rear part of stay)
32: Storage space 35: Case 35a: Case upper plate portion (case upper end portion)
35b: Case lower plate (case lower end)
35c: Case front plate part (case middle part)
35d: rear plate part of case (intermediate case part)
35e, 35f: Left and right case side plate parts (case middle part)
36: Component body (in-vehicle component)

Claims (2)

A support structure of a steering support member that extends in the vehicle width direction at the front portion of the vehicle compartment and supports the steering,
A stay upper end fixed to the steering support member, a stay lower end fixed to a floor panel defining a lower part of the passenger compartment, and a stay upper end and a stay lower end vertically A pair of left and right vertical stays that are spaced apart from each other in the vehicle width direction at the center in the vehicle width direction of the vehicle.
A horizontal stay having both ends fixed to the stay intermediate part of the left and right vertical stays, extending in the vehicle width direction between the left and right vertical stays, and connecting the left and right vertical stays;
A case upper end that contacts the lateral stay from below, a case lower end that contacts the floor panel from above, and a case intermediate portion that extends in the vertical direction and connects the case upper end and the case lower end. And is disposed between the left and right vertical stays and fixed to the horizontal stay and the floor panel, and a storage space for in-vehicle components is defined between the case upper end and the case lower end. And a support structure for the steering support member. The support structure according to claim 1,
A bracket side surface fixed to the steering support member and extending downward in the vehicle width direction, and fixed to the steering support member and bent from a front end edge of the bracket side surface to extend to one side in the vehicle width direction. A bracket front surface portion and a bracket rear surface portion fixed to the steering support member and extending from the rear end edge of the bracket side surface portion to the other side in the vehicle width direction, and the left and right vertical stays of the steering support member. A pair of left and right brackets disposed at positions corresponding to the upper end of the stay,
The stay upper end portions of the left and right vertical stays are a stay side surface portion that intersects with the vehicle width direction, a stay front surface portion that bends from a front end edge of the stay side surface portion and extends to the one side in the vehicle width direction, A stay rear surface portion that bends from the rear end edge of the stay side surface portion and extends to the other side in the vehicle width direction, and the stay front portion abuts the bracket front portion from one side in the front-rear direction, A support structure for a steering support member, wherein a stay rear surface portion is fixed to the left and right brackets in a state where the stay rear surface portion is in contact with the bracket rear surface portion from the one side in the front-rear direction.

Images