JP2015131538A - Suspension tower plate and suspension tower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to improvement of rigidity with respect to input from a suspension.SOLUTION: In a suspension tower plate 10, a plurality of beads 52 extending to an outer peripheral side from a center side of a plate main body 39 made of sheet metal is provided on the plate main body 39. The plurality of beads 52 is individually provided in regions adjacent to a plurality of suspension fastening sections 50. Surface rigidity of the plate main body 39 can be improved by the plurality of beads 52. Accordingly, it is possible to contribute to improvement of rigidity with respect to input F1 from a front suspension to the plurality of suspension fastening sections 50 in a vehicle vertical direction. In addition to the above, the plurality of beads 52 is connected to annular projection portion 46 where an end portion of the center side of the plate main body 39 is provided at the center side of the plate main body 39. On this account, cross-sectional shapes of the plurality of beads 52 can be suppressed from being deformed by the input F1 in the vehicle vertical direction. Therefore, rigidity improvement effect can be excellently secured.

Description

  The present invention relates to a suspension tower of a vehicle and a suspension tower plate constituting an upper wall portion of the suspension tower.

  In the vehicle body front part structure described in Patent Document 1 below, a front spring support plate (hereinafter referred to as a suspension tower plate) is provided on a horizontal plane portion provided at an upper end portion of a front suspension tower. The suspension tower plate is configured such that the upper end portion of the front suspension is fastened and fixed.

Japanese Patent Laid-Open No. 10-316026

  In the vehicle body front structure as described above, a load from the front tire during vehicle travel is input to the suspension tower plate via the front suspension. Therefore, it is required to ensure the rigidity of the suspension tower plate from the viewpoint of improving the running stability of the vehicle.

  In view of the above facts, an object of the present invention is to obtain a suspension tower plate and a suspension tower that can contribute to improvement in rigidity with respect to input from the suspension.

  The suspension tower plate according to the first aspect of the present invention is provided with a plate body made of a sheet metal that constitutes an upper wall portion of the suspension tower of the vehicle, a center side of the plate body, and annularly formed toward the vehicle upper side. A projecting annular projecting portion, a plurality of suspension fastening portions provided on an outer peripheral side of the annular projecting portion of the plate body, arranged in a circumferential direction of the annular projecting portion, and to which a suspension is fastened and fixed; and the plate body And a plurality of beads provided at portions adjacent to the plurality of suspension fastening portions, extending from the center side of the plate main body to the outer peripheral side, and having an end on the center side of the plate main body connected to the annular projecting portion And.

  In the suspension tower plate according to the first aspect, the plate body made of sheet metal is provided with a plurality of beads extending from the center side to the outer peripheral side. The plurality of beads are respectively provided at portions adjacent to the plurality of suspension fastening portions. Since the surface rigidity of the plate body can be improved by the plurality of beads, it is possible to contribute to the improvement of the rigidity with respect to the vehicle vertical direction input from the suspension to the suspension fastening portion. In addition, the plurality of beads are connected to an annular projecting portion provided on the center side of the plate body at the end on the center side of the plate body. Thereby, since it can suppress that the cross-sectional shape of a some bead collapse | crumbles by the input of a vehicle up-down direction, said rigidity improvement effect can be ensured favorably.

  A suspension tower plate according to a second aspect of the present invention is the suspension tower plate according to the first aspect, wherein the bead is reduced in width at a portion adjacent to the suspension fastening portion.

  In the suspension tower plate according to the second aspect, the width dimension of the plurality of beads provided in the plate main body is reduced at a portion adjacent to the suspension fastening portion. As a result, it is possible to prevent the upper surface of the bead from being deformed out of plane due to the vehicle horizontal direction input from the suspension to the suspension fastening portion, and the cross-sectional shape of the bead can be prevented from collapsing. it can. In addition, about the rigidity improvement of a vehicle up-down direction and a vehicle horizontal direction can be confirmed by the analysis etc. which used the electronic computer.

  A suspension tower plate according to a third aspect of the present invention is the suspension tower plate according to the second aspect, wherein a ridge line extending along a height direction of the bead is formed on a side surface of the bead on the suspension fastening portion side.

  In the suspension tower plate according to the third aspect, when the vehicle horizontal direction input from the suspension is applied to the suspension fastening portion, the angle change of the cross section of the bead can be suppressed by the ridgeline. Thereby, it can contribute further to the rigidity improvement with respect to the input of the vehicle horizontal direction to a suspension fastening part.

  A suspension tower plate according to a fourth aspect of the present invention is the suspension tower plate according to the third aspect, wherein the ridgeline is formed in the adjacent portion.

  In the suspension tower plate according to the fourth aspect, a ridge line extending in the height direction of the bead is formed at a portion adjacent to the suspension fastening portion on the side surface of the bead on the suspension fastening portion side. As described above, since the ridge line is set in the vicinity of the suspension fastening portion where the strain energy increases in the bead, it is possible to effectively prevent the cross-section of the bead from changing its angle due to the vehicle horizontal input to the suspension fastening portion. it can.

  A suspension tower plate according to a fifth aspect of the present invention is the suspension tower plate according to the fourth aspect of the present invention, wherein the adjacent portion is formed with a recess having the suspension fastening portion side opened in a plan view.

  In the suspension tower plate according to the fifth aspect, the concave portion as described above is formed in a portion of the bead adjacent to the suspension fastening portion, thereby reducing the width of the bead in the adjacent portion. And by forming this recessed part, the several ridgeline extended along the height direction of a bead is formed in the said adjacent site | part. That is, since the concave portion has both a function of suppressing out-of-plane deformation of the upper surface of the bead and a function of suppressing a change in the angle of the cross section of the bead, the above-described effect can be obtained with a simple configuration.

  The suspension tower plate according to a sixth aspect of the present invention is the suspension tower plate according to the fifth aspect, wherein the depth of the concave portion decreases toward the vehicle upper side.

  In the suspension tower plate according to the sixth aspect, the concave portion formed on the side surface of the bead on the side of the suspension fastening portion is configured as described above. For this reason, the ridgeline formed between the side surface and the upper surface of the bead at the suspension fastening portion side can be prevented from being bent or curved at the concave portion, and the ridgeline can be formed linearly. As a result, it is possible to satisfactorily ensure the rigidity of the bead with respect to the vehicle vertical direction input.

  A suspension tower plate according to a seventh aspect of the present invention is the suspension tower plate according to any one of the first to sixth aspects, wherein the plurality of beads extend from the annular projecting portion to an outer peripheral portion of the plate body.

  Since the suspension tower plate according to the seventh aspect is configured as described above, the surface rigidity of the plate body can be effectively improved. As a result, it is possible to effectively contribute to improving the rigidity with respect to the input in the vehicle vertical direction.

  The suspension tower according to an eighth aspect of the present invention is the suspension main body according to any one of the first to seventh aspects, wherein the suspension main body is coupled to a skeleton member of a vehicle and is attached to an upper end portion of the tower main body. A suspension tower plate.

  Since the suspension tower according to the eighth aspect includes the suspension tower plate according to any one of the first to seventh aspects, the above-described effects can be obtained.

  As described above, the suspension tower plate and the suspension tower according to the present invention can contribute to the improvement of the rigidity with respect to the input from the suspension.

It is a perspective view showing the composition of the right half part in the front part of the body of an automobile constituted by applying the suspension tower plate according to the first embodiment of the present invention. It is a perspective view of the suspension tower plate. It is the expansion perspective view which expanded a part of FIG. It is sectional drawing which shows the cut surface along the F4-F4 line | wire of FIG. 3, (A) is a figure for demonstrating the state by which the out-of-plane deformation | transformation of the upper surface of a bead is suppressed, (B) is FIG. 5 is a diagram for explaining a state in which an angle change is suppressed from occurring in the cross section of the bead. It is a perspective view of the suspension tower plate which concerns on a comparative example. It is an expanded sectional view which expands and shows the cut surface which followed F6-F6 line of Drawing 5, (A) is a figure for explaining the state where the upper surface of a bead is carrying out out-of-plane deformation, (B (A) is a figure for demonstrating the state in which the angle change has arisen in the cross section of the bead. It is a perspective view which shows the partial structure of the suspension tower plate which concerns on 2nd Embodiment of this invention. It is an expanded sectional view which expands and shows the cut surface along the F8-F8 line | wire of FIG. (A)-(E) are schematic plan views which show the modification of the bead in each said embodiment.

<First Embodiment>
A suspension tower plate 10 and a suspension tower 12 according to a first embodiment of the present invention will be described with reference to FIGS. In addition, the arrow FR, arrow UP, and arrow OUT that are appropriately described in each figure respectively indicate the front direction (traveling direction), the upward direction, and the outside in the vehicle width direction of the vehicle.

(overall structure)
Before describing the suspension tower plate 10 (hereinafter referred to as the suspension tower plate 10) and the suspension tower 12 (hereinafter referred to as the suspension tower 12), which are the main parts of the present embodiment, first, the structure around the suspension tower 12 will be described.

  As shown in FIG. 1, an engine compartment 16 for accommodating a power unit (not shown) including an engine, a motor and the like is formed in a vehicle body front portion 14 of an automobile configured by applying a suspension tower 12. The engine compartment 16 is formed on the front side of the cabin 18 with respect to the vehicle. Suspension towers 12 are provided on the left and right sides of the engine compartment 16, respectively. Although the illustration of the left half of the vehicle body front portion 14 is omitted in FIG. 1, the vehicle body front portion 14 is basically configured symmetrically.

  The suspension tower 12 is coupled to the front side member 20 and / or the apron upper member 22. The front side member 20 is a skeleton member of a vehicle body having a longitudinal direction in the vehicle front-rear direction, and is provided on each of the left and right sides of the engine compartment 16. A suspension member 24 that supports a suspension arm of a front suspension (not shown) is disposed on the vehicle lower side of the left and right front side members 20. Further, bumper reinforcements 28 are attached to the front end portions of the left and right front side members 20 via crash boxes 26 as shock absorbing portions, respectively. The bumper reinforcement 28 is a skeleton member of a vehicle body having a longitudinal direction in the vehicle width direction, and is spanned between the front end portions of the left and right crash boxes 26.

  On the other hand, the above-described apron upper member 22 is a skeleton member of a vehicle body having a longitudinal direction in the vehicle front-rear direction, and is provided on the vehicle upper side and the vehicle width direction outer side of the left and right front side members 20, respectively. The rear end portions of the left and right apron upper members 22 are respectively coupled to the middle portion of the front pillar 30 in the vertical direction. A cowl 32 is stretched between the left and right front pillars 30, and a dash panel 34 is provided on the lower side of the cowl 32 with respect to the vehicle. The cabin 18 and the engine compartment 16 are partitioned by the cowl 32 and the dash panel 34.

  Further, a radiator support 36 extending in the vehicle width direction is provided on the front side of the left and right apron upper members 22 in the vehicle. The radiator support 36 is bridged between the front end portions of the left and right front side members 20, and the front end portions of the left and right apron upper members 22 are coupled to both ends in the vehicle width direction at the upper portion of the radiator support 36, respectively. Has been.

(Main part of this embodiment)
Next, the suspension tower plate 10 and the suspension tower 12, which are the main parts of the present embodiment, will be described. The suspension tower 12 includes a tower body 38 that forms a main body portion (side wall portion: peripheral wall portion), and a suspension tower plate 10 that is fixed to an upper end portion of the tower body 38. The tower main body 38 is formed, for example, by pressing a sheet metal material, and has a substantially hat-shaped cross section (substantially U-shaped cross section) in which the outer side in the vehicle width direction is opened in a plan view. Inside the tower main body 38, an upper portion of a front suspension (not shown) is accommodated.

  The suspension tower plate 10 is formed, for example, by pressing or forging a sheet metal material, and includes a plate body 39 that constitutes an upper wall portion (top plate portion) of the suspension tower 12. The plate body is formed in a substantially disk shape. A flange portion 40 extending downward is formed by forming a bent portion bent downward on the vehicle front side, the vehicle width direction inner side, and the vehicle rear side of the outer peripheral portion of the plate body 39. ing. The flange portion 40 is superposed on the outer peripheral surface of the upper end portion of the tower main body 38, and is joined to the upper end portion of the tower main body 38 by means such as welding.

  A circular or substantially circular opening 42 is formed in a central portion of the plate body 39 at a portion facing a shock absorber (not shown) provided in the front suspension. The opening 42 is formed concentrically with the shock absorber. A hole edge portion of the opening 42 is an annular projecting portion 46 projecting annularly toward the upper side. The annular protrusion 46 has a substantially inverted L-shaped cross section when viewed from the circumferential direction.

  A plurality (three in this case) of suspension fastening holes 48 for fastening and fixing the upper end portion of the front shock absorber to the plate body 39 are formed between the annular projecting portion 46 and the flange portion 40 in the plate body 39. Yes. These suspension fastening holes 48 are formed in a circular shape, and are provided in the circumferential direction of the annular projecting portion 46 so as to be arranged at equal intervals or substantially equal intervals. Bolts (not shown) inserted into the suspension fastening holes 48 pass through the upper ends of the shock absorbers and are screwed into nuts (not shown), whereby the upper ends of the shock absorbers are fastened and fixed to the suspension tower plate 10. That is, the hole edge portion of each suspension fastening hole 48 is a suspension fastening portion 50, and in this embodiment, three suspension fastening portions 50 are provided on the plate body 39.

  The plate main body 39 is formed with beads 52 at portions adjacent to the three suspension fastening portions 50. The plurality (six in this case) of beads 52 are formed by partially bulging the sheet metal material, which is the material of the suspension tower plate 10, upward and radially from the center side of the plate body 39 to the outer peripheral side. It extends to. In the plurality of beads 52, the end on the center side of the plate body 39 is integrally connected to the annular protrusion 46, and all of the plurality of beads 52 extend from the annular protrusion 46 to the outer periphery of the plate body 39. ing. In addition, the plurality of beads 52 include a bridge spanned between the annular projecting portion 46 and the flange portion 40. In the present embodiment, four beads 52 excluding the two beads 52 positioned on the outer side in the vehicle width direction from the annular protrusion 46 are bridged between the annular protrusion 46 and the flange portion 40.

  Each bead 52 includes a pair of side walls 52A and 52B facing each other, and an upper wall 52C that connects the upper end portions of the side walls 52A and 52B in the width direction of each bead 52. These beads 52 have a cross-sectional shape viewed from the extending direction (longitudinal direction) and a substantially inverted U-shaped cross-section that opens downward (a cross-sectional shape obtained by removing a flange-like portion from a hat-shaped cross-section). Yes.

  As shown in FIGS. 4A and 4B, four bent portions (bent portions) are formed in the plate body 39 where the beads 52 are formed. Four ridgelines L1 (bending lines) extending in the longitudinal direction of each bead 52 are formed at the corners of these bent portions. These beads 52 are a pair of adjacent pairs sandwiching each suspension fastening portion 50 (each suspension fastening hole 48), and the pair of beads 52 are fastened to each of the suspension fastening portions 50. They are formed close to each other so as to secure a minimum space necessary for fixing.

  Further, in this suspension tower plate 10, recesses 54 are respectively formed in portions of the beads 52 adjacent to the suspension fastening portion 50 (portions aligned in the circumferential direction of the suspension tower plate 10 with respect to the suspension fastening portion 50). . These concave portions 54 are formed in portions of the pair of beads 52 described above that face each other with the suspension fastening portion 50 interposed therebetween. These concave portions 54 are formed in a square shape (here, a cross-sectional trapezoidal shape) in which the suspension fastening portion 50 side is opened in a plan view, and the width of the adjacent portion is smaller than the other portions in the bead 52. The narrow portion 56 (the width dimension is set to be small).

  And by the suspension fastening part 50 side of each bead 52, the said recessed part 54 is formed, and the ridgeline L1 located in the upper end and lower end of 52 A of side walls is bent corresponding to the shape of the recessed part 54. FIG. On the other hand, since the concave portion 54 is not formed on the opposite side of each bead 52 from the suspension fastening portion 50, the ridge lines L1 positioned at the upper end and the lower end of the side wall 52B are formed linearly.

  In addition, a plurality of the concave portions 54 are formed in a portion adjacent to the suspension fastening portion 50 on the side surface (the surface of the side wall 52A on the suspension fastening portion 50 side) of each bead 52 on the suspension fastening portion 50 side. (Here, four) ridge lines L2 (bending lines) are formed. These four ridge lines L <b> 2 extend along the height direction of each bead 52.

(Function and effect)
Next, the operation and effect of the first embodiment will be described.

  In the suspension tower plate 10 of the suspension tower 12 having the above-described configuration, the plate body 39 made of sheet metal is provided with a plurality of beads 52 extending from the center side to the outer peripheral side. These beads 52 are respectively provided at portions adjacent to the plurality of suspension fastening portions 50. Since the surface rigidity of the plate body 39 can be improved by these beads 52, it is possible to contribute to improvement in rigidity with respect to an input F1 (see FIG. 2) in the vehicle vertical direction from the front suspension to the suspension fastening portion 50. In addition, the plurality of beads 52 are connected to an annular projecting portion 46 provided on the center side of the plate body 39 at the end on the center side of the plate body 39. Thereby, since it can suppress that the cross-sectional shape of the some bead 52 collapse | crumbles by the input F1 of a vehicle up-down direction, said rigidity improvement effect can be ensured favorably.

  Further, in the present embodiment, the plurality of beads 52 have a reduced width dimension at a portion adjacent to the suspension fastening portion 50 (the narrow portion 56), and the line length of the cross section of the upper wall 52 </ b> C is other than the bead 52. It is smaller than the part. Thereby, it is possible to suppress the upper surface of the bead 52, that is, the upper wall 52 </ b> C from being deformed out of plane due to the vehicle horizontal direction input F <b> 2 from the front suspension to the suspension fastening portion 50 (see FIG. 2), and the cross-sectional shape of the bead 52 can be prevented from collapsing. As a result, it is possible to contribute to improvement in rigidity with respect to the input in the vehicle horizontal direction.

  Furthermore, in the present embodiment, a ridge line L <b> 2 extending along the height direction of the bead 52 is formed on the side surface of the bead 52 on the suspension fastening portion 50 side. For this reason, when the vehicle horizontal direction input F2 from the front suspension is applied to the suspension fastening portion 50, the angle α and the angle β of the cross section of the bead 52 by the ridge line L2 (see FIG. 4B). Can be suppressed (the cross-sectional shape of the bead 52 is broken). Thereby, it can contribute further to the rigidity improvement with respect to the input F2 in the vehicle horizontal direction.

  The above effect will be described in detail using the suspension tower plate 100 (comparative example) shown in FIG. The suspension tower plate 100 has the same configuration as that of the suspension tower plate 10 according to the present embodiment, except that the narrow portion 56 (recessed portion 54) is not provided in the bead 52. Also in the suspension tower plate 100, the bead 52 is formed, so that the rigidity with respect to the input F1 in the vehicle vertical direction to the suspension fastening portion 50 can be improved. However, when the vehicle horizontal direction input F2 is applied to the suspension fastening portion 50, as shown in FIG. 6A, the upper surface of the bead 52 undergoes out-of-plane deformation and FIG. ), An angle change occurs in the cross section of the bead 52. As a result, it is conceivable that it is difficult to ensure rigidity for the input F2 in the vehicle horizontal direction.

  On the other hand, the suspension tower plate 10 according to the present embodiment can contribute to the improvement of the rigidity with respect to the inputs F1 and F2 in the vehicle vertical direction and the vehicle horizontal direction as described above. Can contribute.

  In addition, in the present embodiment, the ridge line L <b> 2 is formed in a portion adjacent to the suspension fastening portion 50 in the bead 52. Thus, in the bead 52, since the ridge line L2 is set in the vicinity of the suspension fastening portion 50 where the strain energy increases, the cross section of the bead 52 changes in angle due to the vehicle horizontal input F2 to the suspension fastening portion 50. This can be effectively suppressed.

  In the present embodiment, the narrow portion 56 that is adjacent to the suspension fastening portion 50 in the bead 52 is formed with the concave portion 54 that is open on the suspension fastening portion 50 side in a plan view. At 56, the width dimension of the bead 52 is reduced. And by this recessed part 54 being formed, the said some ridgeline L2 is formed in the said adjacent site | part. That is, the recess 54 has a function of suppressing out-of-plane deformation of the upper surface of the bead 52 and a function of suppressing a change in the angle of the cross section of the bead 52, and thus the above-described effect can be obtained with a simple configuration. it can.

  In addition, each bead 52 has a ridge line L1 on the side where the concave portion 54 is not formed (the side opposite to the suspension fastening portion 50) formed in a straight line, so that the effect of improving the rigidity with respect to input in the vehicle vertical direction is not insufficient. Can be.

  Further, in the present embodiment, the plurality of beads 52 extend from the annular projecting portion 46 provided on the center side of the plate main body 39 to the outer peripheral portion of the plate main body 39. Thereby, since the surface rigidity of the plate main body 39 can be improved effectively, it can contribute to the rigidity improvement with respect to the input of a vehicle up-down direction effectively.

  Next, another embodiment of the present invention will be described. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol as the said 1st Embodiment is provided, and the description is abbreviate | omitted.

<Second Embodiment>
FIG. 7 is a perspective view showing a partial configuration of a suspension tower plate 60 (hereinafter referred to as a suspension tower plate 60) according to the second embodiment of the present invention. In this suspension tower plate 60, a recess 62 is formed in a portion of each bead 52 adjacent to the suspension fastening portion 50. Similar to the concave portion 54 according to the first embodiment, the concave portion 62 is formed in a quadrangular cross section (here, a trapezoidal cross section) in which the suspension fastening portion 50 side is opened in a plan view. For this reason, the width dimension of each bead 52 is reduced at the portion where the recess 62 is formed. In addition, a plurality of (here, four) ridge lines L2 are formed by forming concave portions 62 on the side surface of each bead 52 on the side of the suspension fastening portion 50. These points are the same as those of the suspension tower plate 10 according to the first embodiment.

  However, in the suspension tower plate 60, the side wall 52A on the suspension fastening portion 50 side of the bead 52 is inclined to the other side wall 52B side than the first embodiment, and the depth dimension d of the recess 62 is the vehicle upper side. It decreases as it goes to. The recess 62 has a depth d of zero at the upper end of the side wall 52A. Therefore, the ridge line L1 located at the upper end of the side wall 52A is not bent at the portion of the recess 62, and is formed in a straight line. In this embodiment, the configuration other than the above is the same as that of the first embodiment.

  In this embodiment, a ridge line L <b> 2 extending along the height direction of the bead 52 is formed on the side surface of the bead 52 on the suspension fastening portion 50 side. Thereby, when the input F2 in the vehicle horizontal direction is applied to the suspension fastening portion 50, it is possible to suppress the change in the angle β of the cross section of the bead 52 by the ridgeline L2, and the suspension tower plate 60 with respect to the input F2 can be suppressed. It can contribute to the improvement of rigidity. In addition, since the ridge line L1 positioned at the upper end of the side wall 52A of the bead 52 is formed in a straight line, it is possible to satisfactorily ensure the rigidity of the bead 52 with respect to the input F1 in the vehicle vertical direction. As a result, it is possible to contribute to effectively improving the rigidity of the suspension tower plate 60 with respect to the input F1.

<Supplementary explanation of the embodiment>
In each of the above embodiments, the concave portions 54 and 62 having a trapezoidal cross section in plan view are formed in the bead 52, but the present invention is not limited to this. For example, as shown in FIG. 9A, an arc-shaped concave portion 70 may be formed in the bead 52 in a plan view, or a cross section in a plan view as shown in FIG. 9B. A triangular recess 72 may be formed in the bead 52.

  For example, as shown in FIG. 9C and FIG. 9D, the bead 52 becomes narrower (narrower) toward the narrower part 56 side that is the adjacent part to the suspension fastening part 50. Alternatively, the bead 52 may be formed. In these modified examples, the ridge line L <b> 2 is not formed on the bead 52.

  Further, for example, as shown in FIG. 9E, one end of the bead 52 in the longitudinal direction is formed to be narrower than the other end in the longitudinal direction of the bead 52, and a part of the one end in the narrow longitudinal direction is suspended. You may make it the structure adjacent to the fastening part 50. FIG. That is, the bead width dimension may be reduced in a part of the bead including a portion adjacent to the suspension fastening portion.

  Moreover, in each said embodiment, although the suspension tower plate 10 was set as the structure provided with the three suspension fastening parts 50 and the six beads 52, this invention is not limited to this, The number of suspension fastening parts and beads is changed suitably. be able to.

  Moreover, in each said embodiment, although it was set as the structure by which the narrow part 56 was provided in all the six beads 52, this invention is not limited to this, The narrow part was provided in some of some beads. It may be configured.

  Moreover, in each said embodiment, it was set as the structure where the ridgeline L2 extended along the height direction of the bead 52 was formed in the adjacent part (periphery of the suspension fastening part 50) with the suspension fastening part 50 in the bead 52, The present invention is not limited to this. That is, a ridge line extending along the height direction of the bead may be formed on a side surface of the bead on the side of the suspension fastening portion that is separated from the suspension fastening portion.

  Furthermore, in each said embodiment, although it was set as the structure by which the some bead 52 was arrange | positioned radially, this invention is not limited to this. For example, a configuration may be adopted in which a pair of beads adjacent to each other with the suspension fastening portion interposed therebetween are arranged in parallel to each other.

  Moreover, in each said embodiment, although the some bead 52 was set as the structure extended from the cyclic | annular protrusion part 46 to the outer peripheral part of the plate main body 39, this invention is not limited to this. That is, you may make it the structure by which the edge part of the outer peripheral side of the plate main body in a some bead is located in the inner peripheral side of a plate main body rather than the outer peripheral part of a plate main body.

  Moreover, in each said embodiment, although the edge part of the inner peripheral side of the plate main body 39 in the some bead 52 was connected to the cyclic | annular protrusion part 46, it is not restricted to this, Inside of the plate main body in a some bead You may make it the structure which the edge part of the circumferential side contact | abutted or adjoined to the cyclic | annular protrusion part, and was opposed. That is, when the plate body and the annular protrusion are formed separately and joined by welding or the like, the plurality of beads provided on the plate body and the annular protrusion are divided. Even in such a case, the surface rigidity of the plate body can be improved by the plurality of beads, which can contribute to the improvement of the rigidity of the suspension tower plate with respect to the input from the suspension. Alternatively, the annular protrusion may be integrally formed on the plate main body, and a bead formed separately may be joined to the plate main body by welding or the like. Both may be joined by welding or the like.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to the above embodiment.

DESCRIPTION OF SYMBOLS 10 Suspension tower plate 12 Suspension tower 38 Tower main body 39 Plate main body 46 Annular protrusion 50 Suspension fastening part 52 Bead 54 Recess 60 Suspension tower plate 62 Recess 70 Recess 72 Recess L2 A ridge line extending along the height direction of the bead

Claims (8)

A plate body made of sheet metal that constitutes the upper wall of the suspension tower of the vehicle;
An annular projecting portion provided on the center side of the plate body and projecting annularly toward the vehicle upper side;
A plurality of suspension fastening portions provided on the outer peripheral side of the annular projecting portion in the plate body, arranged in a circumferential direction of the annular projecting portion, and to which a suspension is fastened and fixed;
The plate main body is provided in a portion adjacent to the plurality of suspension fastening portions, extends from the center side of the plate main body to the outer peripheral side, and the end portion on the center side of the plate main body is connected to the annular projecting portion. With multiple beads,
Suspension tower plate with   The suspension tower plate according to claim 1, wherein a width dimension of the bead is reduced at a portion adjacent to the suspension fastening portion.   The suspension tower plate according to claim 2, wherein a ridge line extending along a height direction of the bead is formed on a side surface of the bead on the suspension fastening portion side.   The suspension tower plate according to claim 3, wherein the ridge line is formed in the adjacent portion.   The suspension tower plate according to claim 4, wherein the adjacent portion is formed with a recess in which the suspension fastening portion side is opened in a plan view.   The suspension tower plate according to claim 5, wherein the depth of the concave portion decreases toward the vehicle upper side.   The suspension tower plate according to any one of claims 1 to 6, wherein the plurality of beads extend from the annular projecting portion to an outer peripheral portion of the plate body. A tower body coupled to a vehicle skeleton member;
The suspension tower plate according to any one of claims 1 to 7, wherein the suspension tower plate is attached to an upper end portion of the tower body.
Suspension tower with