JPH1134911A - Reinforcing structure for vehicular members - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcing structure for vehicular members, which enhances an efficiency for strengthening the stiffness of vehicular members by means of bulkheads by fixing the peripheral parts of the bulkheads to both the first and second members forming the vehicular members, and also making the vehicular members light in weight. SOLUTION: A second member 3 blocking an opening part 26 is mounted to a first member 2 having the opening part 26 at one side of its cross section so as to be formed into a vehicle member 1 which has a closed cross sectional structure to be extended to the specified direction of a car body so as to be provided. Reinforcing bulkheads 4 are disposed in the inside of the vehicular member 1, and the member 2 side of a peripheral part for each bulkhead is fixed to the inner wall surface 27 of the first member 2. Through-holes 34 are formed in the second member 3, and the flange part 41 at the second member 3 side of each bulkhead 4 is combined with the hole peripheral part 34a of each through-hole 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for reinforcing a vehicle member such as a suspension member or a cross member having a closed sectional structure.

[0002]

2. Description of the Related Art FIGS.
No. 2, pp. 147-64, and shows an example of a conventional product.
As shown in FIG. 7, the vehicle member A includes:
A suspension member, which is disposed so as to extend in the width direction of the vehicle body and is mounted on the vehicle body, and ends of suspension links B and C are swingably connected to both ends. In addition, in FIG. 7, the code | symbol D has shown the shock absorber, and the code | symbol E has shown the stabilizer.

FIG. 8 is a perspective view showing one end of a vehicle member A, and FIG. 9 is a sectional view taken along line VV of FIG.

As shown in FIGS. 8 and 9, the vehicle member A has a first member M having a closed cross-sectional structure, an inverted U-shaped cross section, and an opening M1 on one side of the cross section. , A second member N having a U-shaped cross section and having an opening N1 on one side of the cross section, and the first member M and the second member N
1 and are flanged together.

In the vehicle member A, a bulkhead P for reinforcing the vehicle member A is disposed so as to cover the cross section of the first member M. It is fixed to the inner wall surface M2 of one member M.

FIG. 10 shows another example of a conventional product described in Japanese Utility Model Laid-Open No. 53-136717.

The vehicle member a is a suspension member having a closed cross-sectional structure, and a plate-shaped second member n is formed on a first member m having an inverted U-shaped cross section and an opening on one side of the cross section. A reinforcing bulkhead p is disposed within the vehicle member a, and the first member m side of the peripheral portion of the bulkhead p is an inner wall surface m2 of the first member m.
It is fixed to.

[0008]

In order to assemble the vehicle members A, a described above, the first member M,
After fixing the bulkheads P and p at predetermined positions within m,
Since the second members N, n were attached to the first members M, m, the bulkheads P, p could not be fixed to the second members N, n.

Therefore, the reinforcing structure of the vehicle members A and a has a problem that the efficiency of reinforcing the second members N and n by the bulkheads P and p is low.

Therefore, in the present invention, the efficiency of reinforcing the rigidity of the vehicle member by the bulkhead is increased by increasing the efficiency of reinforcing the second member by the bulkhead as compared with the conventional product shown in FIGS. It is an object of the present invention to provide a vehicle member reinforcing structure capable of reducing the weight of a vehicle member.

[0011]

Means for Solving the Problems As means for solving the above problems, the invention of claim 1 has a closed cross-sectional structure formed by joining and joining a first member and a second member and extends in a predetermined direction of a vehicle body. In a vehicle member reinforcing structure in which a reinforcing bulkhead is provided in a vehicle member provided, one side of a peripheral portion of the bulkhead is fixed to an inner wall surface of the first member, and the second member And the other side of the peripheral portion of the bulkhead is coupled to the hole edge of the through hole.

According to the first aspect of the present invention, one side of the peripheral portion of the bulkhead is fixed to the inner wall surface of the first member, a through hole is formed in the second member, and the other side of the peripheral portion of the bulkhead is connected to the other side. The bulkhead is fixed to both the first and second members because it is coupled to the hole edge of the through hole, and the first member and the second member are
They are connected to each other in the vehicle member via the bulkhead.

According to a second aspect of the present invention, there is provided the reinforcing member for a vehicle member according to the first aspect, wherein the first member and the second member have an opening on one side of a cross section. The closed cross-sectional structure is formed by facing each other and fitting each other.

Therefore, according to the second aspect of the present invention, even if a manufacturing error occurs in the projecting length of the bulkhead projecting from the first member, the manufacturing error is reduced by the fitting of the second member to the first member. By absorbing by adjusting the depth, the peripheral edge of the bulkhead can be coupled to the hole edge of the through hole of the second member.

According to a third aspect of the present invention, there is provided a vehicle member reinforcing structure according to the first or second aspect, wherein the first member and the second member are connected to each other.
The members are characterized in that the first member is large and the second member is relatively small in the direction facing each other.

Therefore, according to the invention of claim 3, claim 1
Alternatively, the through hole of the second member can be formed smaller than in the invention described in (2).

According to a fourth aspect of the present invention, there is provided the reinforcing member for a vehicle member according to any one of the first to third aspects, wherein the other side of the peripheral portion of the bulkhead is provided on the inner wall surface of the second member. An opposed flange portion is formed, and the flange portion is coupled to a hole edge of the through hole.

Therefore, according to the invention of claim 4, claim 1
The contact area of the bulkhead that contacts the inner wall surface of the second member can be increased by the flange portion of the bulkhead, and the strength of fixing the bulkhead to the second member can be increased, as compared with the invention described in any one of (1) to (3). can do.

According to a fifth aspect of the present invention, there is provided the vehicle member reinforcing structure according to any one of the first to fourth aspects, wherein the through-hole is formed in a depth in a direction in which the second member faces the first member. A welding slot provided in a wall portion, wherein the other side of the peripheral portion of the bulkhead is welded to the slot.

Therefore, in the invention according to claim 5, the second
The bulkhead can be fixed to the second member by slot welding using a welding slot provided in the back wall portion of the member, and the bulkhead can be fixed as compared with the invention according to any one of claims 1 to 4. It can be firmly fixed by the second member.

According to a sixth aspect of the present invention, there is provided the reinforcing member for a vehicle member according to any one of the first to fifth aspects, wherein a passing portion is provided through the bulkhead.

Therefore, in the invention according to claim 6, when the inner and outer peripheral wall surfaces of the vehicle member are subjected to dove dip coating, a coating hole for allowing the coating liquid for dove dip coating to flow into the vehicle member is provided. , At least one anywhere on the vehicle member
If provided, the coating liquid flows into the vehicle member from the coating hole and spreads over the entire inner peripheral wall surface of the vehicle member through the passage portion of the bulkhead.

According to a seventh aspect of the present invention, there is provided the reinforcing member for a vehicle member according to the sixth aspect, wherein the passing portion is a passing hole formed through a central portion of the bulkhead, and the passing hole is When the bulkhead is fixed to the first member, it also functions as a positioning hole through which a positioning pin for positioning a fixing position of the bulkhead is inserted.

According to the present invention, when the bulkhead is fixed at a predetermined position of the first member, the first member is fixed to a jig, and the bulkhead is attached to a positioning pin attached to the jig. By inserting the bulkhead into the stepped portion of the positioning pin by passing through the through hole, the fixed position of the bulkhead to the first member can be positioned.

According to an eighth aspect of the present invention, there is provided the vehicle member reinforcing structure according to any one of the first to seventh aspects, wherein the bulkhead is formed with reinforcing irregularities. .

According to a ninth aspect of the present invention, there is provided the vehicle member reinforcing structure according to any one of the first to eighth aspects, wherein the vehicle member is a suspension member extending in a width direction of the vehicle body. The suspension member is provided with at least one bulk head.

[0027]

According to the first aspect of the present invention, the bulkhead is fixed to both the first and second members, and the first member and the second member are connected to each other in the vehicle member via the bulkhead. Therefore, the efficiency of reinforcement of the second member by the bulkhead can be increased as compared with the conventional product shown in FIGS. 9 and 10, and the efficiency of strengthening the rigidity of the vehicle member by the bulkhead can be increased. Can be reduced in weight.

According to the second aspect of the present invention, even if a manufacturing error occurs in the projecting length of the bulkhead projecting from the first member, the manufacturing error is reduced by the fitting depth of the second member to the first member. And the peripheral edge of the bulkhead can be joined to the hole edge of the through hole of the second member, so that the manufacturing cost of the bulkhead can be reduced, and the first member and the second member can be absorbed. The positions in the directions in which the two face each other can also be determined by a bulkhead.

According to the third aspect of the present invention, the first or second aspect is provided.
Since the through-hole of the second member can be formed smaller than in the described invention, it is possible to reduce the amount of work for joining the peripheral portion of the bulkhead to the edge of the through-hole.

According to the fourth aspect of the present invention, the contact area of the bulkhead contacting the inner wall surface of the second member is increased by the flange portion of the bulkhead, as compared with the first aspect of the present invention. Since the fixing strength of the bulkhead to the second member can be increased, the efficiency of reinforcing the second member by the bulkhead can be increased, and the weight of the bulkhead can be reduced. It is also possible to increase the efficiency of enhancing the rigidity of the vehicle member and reduce the weight of the vehicle member.

According to the fifth aspect of the present invention, the bulkhead can be more firmly fixed by the second member as compared with the invention according to any one of the first to fourth aspects. Reinforcement efficiency can be increased, and the efficiency of strengthening the rigidity of the vehicle member by the bulkhead can be increased, and the weight of the vehicle member can be reduced.

According to the sixth aspect of the present invention, when the inner and outer peripheral wall surfaces of the vehicle member are subjected to the dove dipping coating, the coating hole for allowing the coating liquid for the dob dipping coating to flow into the vehicle member is provided. If at least one coating liquid is provided at an arbitrary position of the vehicle member, the coating liquid flows into the vehicle member from the coating hole and spreads over the entire inner peripheral wall surface of the vehicle member through the passage of the bulkhead. Therefore, by providing the coating holes in the high-rigidity portion of the vehicle member, it is possible to minimize a decrease in the rigidity of the vehicle member due to the provision of the coating holes.

According to the seventh aspect of the present invention, when the bulkhead is fixed at a predetermined position of the first member, the first member is fixed to a jig, and the bulkhead passes through a positioning pin attached to the jig. By inserting the hole and bringing the bulkhead into contact with the stepped portion of the positioning pin, the position of fixing the bulkhead to the first member can be determined. Becomes easier.

According to the eighth aspect of the present invention, since the reinforcing irregularities are formed on the bulkhead, the rigidity of the bulkhead can be further increased and the weight of the bulkhead can be reduced.

According to the ninth aspect of the present invention, the vehicle member is a suspension member extending in the width direction of the vehicle body, and the suspension member is provided with at least one bulkhead. Reinforcement can increase the rigidity of the suspension member.

[0036]

FIG. 1 shows an example of an embodiment in which the inventions of claims 1 to 7 and 9 are combined. The vehicle member 1, which is a suspension member, extends in the width direction of the vehicle body and is disposed on the vehicle body.
The vehicle has a closed cross-sectional structure formed by joining the member 2 and the second member 3 together. Inside the central portion of the vehicle member 1, a pair of reinforcing bulkheads 4 are opposed to each other at a predetermined interval. It is arranged.

FIG. 2 shows only the central portion of the vehicle member 1, and FIG. 3 is a sectional view taken along line WW of FIG.

As shown in FIGS. 2 and 3, the first member 2
A back wall 21 in a direction facing the second member 3 and a first hanging wall 22 hanging from one end of the back wall 21 in the width direction R
A first inclined wall portion 23 descending from the other end of the back wall portion 21 in the width direction R so as to spread diagonally downward, and the inclined wall portion 2
3 includes a second inclined wall portion 24 descending obliquely downward from the lower end of the third member 3 and a second hanging wall portion 25 hanging from the lower end of the inclined wall portion 24.
Has an opening 26 that opens along.

The second member 3 includes a back wall portion 31 in a direction facing the first member 2 and side wall portions 32 erected at both ends in the width direction R of the back wall portion 31.
And the height of both side walls 32 is set shorter than the width of the back wall 31 so that the flat U
It has a U-shaped cross section, and both side walls 32 are fitted and welded to the two vertical walls 22 and 25 of the first member 2 and attached to the first member 2.

The height of the first member 2 from the opening 26 to the back wall 21 is set higher than the height from the opening of the second member 3 to the back wall 31, and the second member 2 3 is larger than the second member 3 in the direction facing 3 and the second member 3 is set relatively small.

Each of the pair of bulkheads 4 is a plate having substantially the same shape as the closed cross section of the vehicle member 1.
The closed cross section of the vehicle member 1 is entirely closed, and the inner wall surface 33 of the rear wall portion 31 of the second member 3 is opposed to the inner wall surface Is formed.

Each of the bulkheads 4 serves as a passage portion through which the coating liquid passes through the bulkhead 4 when the inner and outer peripheral wall surfaces 11 and 12 of the vehicle member 1 are subjected to the immersion coating. Notches 42 at both corners on the second member 3 side
However, a through hole 43 is formed in the center of the bulkhead 4, and the positioning hole for positioning the fixing position of the bulkhead 4 when the bulkhead 4 is fixed to the first member 2 is formed in the through hole 43. Also serves as a positioning hole to be inserted.

Each of the bulkheads 4 is welded and fixed to the inner wall surface 27 of the first member 2 at the periphery of the first member 2.
The flange 41 on the side of the second member 3 at the periphery is fixed to the back wall 31 of the second member 3 by welding in a manner described later, and the periphery is intermittently fixed to the vehicle member 1 over the entire circumference. Have been.

FIG. 4 is an exploded perspective view of what is shown in FIG. As shown in FIG. 4, the inner wall portion 31 of the second member 3 includes
At the portions where the flange portions 41 of both bulkheads 4 abut,
A through hole 34 is formed as a welding slot extending along the flange portion 41, and a coating hole for dipping and painting the inner peripheral wall surface 11 of the vehicle member 1 in a portion sandwiched between the two through holes 34. 35 are provided.

To assemble the vehicle member 1 described above, first, the first member 2 is placed in a jig (not shown),
With the inner wall surface 27 of the member 2 facing upward, the positioning pin provided at the tip of the arm extending from the jig is moved to the first position.
The first member 2 is disposed at a predetermined position in the member 2 in parallel with the first member 2, the passage pin 43 of the bulkhead 4 is inserted through the positioning pin, and the bulkhead 4 is brought into contact with the stepped portion of the positioning pin, whereby the first The bulkhead 4 is arranged at a predetermined position in the member 2, and the bulkhead 4 is fixed to the inner wall surface 27 of the first member 2 by welding.

Next, as shown in FIG. 4, both the vertical walls 22, 25 of the first member 2 are fitted to both side walls 32 of the second member 3, and the flange 41 of the bulkhead 4 is The first member 2 is brought into contact with a predetermined position on the inner wall surface 33 of the inner wall portion 31 of the member 3 to perform alignment of the first member 2 and the second member 3 in the alignment direction,
The flange portion 41 of the bulkhead 4 closes the through hole 34 of the back wall portion 31 of the second member 3, and the side wall portions 32 of the second member 3
Is fixed to the first member 2 by welding.

Finally, the bulkhead 4 is inserted through the opening in the through hole 34 of the second member 3 on the outer wall surface 36 side of the second member 3.
Slot welding of the flange portion 41 of the
The flange portion 41 of the bulkhead 4 is welded and fixed to the inner wall portion 31 of the second member 3 by connecting the first member 1 to the hole edge 34 a of the through hole 34.

In the vehicle member 1 described above, the first member 2 side of the periphery of the bulkhead 4 is welded and fixed to the inner wall surface 27 of the first member 2, and the second member 3 side of the periphery of the bulkhead 4 is fixed. Since the flange portion 41 is slot-welded to the second member 3 and joined to the hole edge 34a of the through hole 34 of the second member 3, the bulkhead 4 has a circumferential edge portion that extends over the entire circumference. The first member 2 and the second member 3 are intermittently fixed to the first and second members 2 and 3 by welding.
Are connected to each other in the vehicle member 1 through

Therefore, in the vehicle member 1, the second member 3 by the bulkhead 4 is different from the conventional member shown in FIGS.
, The efficiency of reinforcing the rigidity of the vehicle member 1 by the bulkhead 4 can be increased, and the weight of the vehicle member 1 can be reduced.

In the vehicle member 1, since the first member 2 and the second member 3 are fitted with the openings 21 facing each other, the protrusion of the bulkhead 4 protruding from the first member 2 is performed. Even if there is a manufacturing error in the length,
A double wall portion 22 of the first member 2 to both side wall portions 32 of the member 3,
25 by adjusting the fitting depth of the bulkhead 4
Of the through-hole 34 of the second member 3
4a.

Therefore, in the vehicle member 1, the manufacturing cost of the bulkhead 4 can be reduced, and the positioning in the direction in which the first member 2 and the second member 3 face each other can be performed by the bulkhead 4.

In the vehicle member 1, the first member 2
However, since it is set to be larger than the second member 3 in the direction facing the second member 3 and the second member 3 is relatively small,
Even if the through hole 34 is formed only in the inner wall portion 31 of the second member 3, that is, even if the through hole 34 is not formed in both side wall portions 32 of the second member 3, the peripheral edge of the bulkhead 4 And can be intermittently fixed to the first and second members 2 and 3 by welding.

Therefore, in the vehicle member 1, the second member 3
The manufacturing cost of the second member 3 can be reduced, and the work of fixing the bulkhead 4 to the side walls 32 of the second member 3 can be omitted, and the work efficiency of the work of fixing the bulkhead 4 to the second member 3 can be improved. You can also.

Further, in the vehicle member 1, the contact area of the bulkhead 4 that contacts the inner wall surface 33 of the back wall portion 31 of the second member 3 can be increased by the flange portion 41 of the bulkhead 4. Since the strength of fixing the bulkhead 4 to the second member 3 can be increased, the efficiency of reinforcing the second member 3 by the bulkhead 4 can be increased, and the weight of the bulkhead 4 and the weight of the vehicle member 1 can be reduced. be able to.

In the vehicle member 1, since the through hole 34 of the second member 3 is closed by the flange 41 of the bulkhead 4, the bulkhead 4 extends over the entire periphery of the hole edge of the through hole 34. Can be fixed to the second member 3, so that
The fixing strength of the bulkhead 4 to the second member 3 can be increased, and the reduction in the strength of the second member 3 due to the opening of the through hole 34 can be suppressed to a low level.

In the vehicle member 1, the through hole 34
Is a slot for welding extending along the flange portion 41 of the bulkhead 4, so that when the bulkhead 4 is welded and fixed to the second member 3 using the through hole 34, the through hole is a slot. Bulkhead 4 at a stretch along 34
Can be welded to the second member 3, and the work efficiency of fixing the bulkhead 4 to the second member 3 can be improved.

In the vehicle member 1, notches 42 are formed at both corners of the bulkhead 4 on the second member 3 side as passing portions of the bulkhead 4, and passing holes 4 are formed at the center of the bulkhead 4.
When the inner and outer peripheral wall surfaces 11 and 12 of the vehicle member 1 are subjected to dove dipping and coating, the coating liquid 35 for dove dipping coating liquid flows into the vehicular member 1. If the coating member is provided at any one place in the vehicle member 1, the coating liquid flows into the vehicle member 1 from the coating hole 35 and passes through the notch 42 and the passage hole 43 of the bulkhead 4. It spreads over the entire inner peripheral wall surface 11 of the vehicle member 1.

For this reason, in the vehicle member 1, the coating hole 35 for dove dipping and coating the inner peripheral wall surface 11 of the vehicle member 1 is provided with the height of the vehicle member 1 sandwiched between the two bulkheads 4. It can be provided at the central portion of the vehicle member 1 which is a rigid portion, and the reduction in the strength of the vehicle member 1 due to the provision of the coating holes 35 can be minimized.

Further, in the vehicle member 1, the passage hole 43 of the bulkhead 4 is provided with a positioning hole through which a positioning pin for positioning the bulkhead 4 when the bulkhead 4 is fixed to the first member 2 is inserted. Because it also serves as
When fixing the bulkhead 4 to a predetermined position of the first member 2, the fixing position of the bulkhead 4 to the first member 2 can be determined using the passage hole 43 of the bulkhead 4. The work of fixing the bulkhead 4 to the one member 2 becomes easy.

In the vehicle member 1, the bulkhead 4 is fixed only to the central portion and only the central portion is reinforced by the bulkhead 4. For example, the two ends of the vehicle member 1 are branched. It is needless to say that the bulkhead 4 can be fixed to a stress concentration portion such as a portion with a similar structure, and the stress concentration portion can be reinforced by the bulkhead 4.

FIG. 5 shows a bulkhead according to an embodiment of the invention described in claim 8, and FIG. 6 is a sectional view taken along the line ZZ of FIG.

As shown in FIGS. 5 and 6, the bulkhead 140 is formed with an emboss 141 having planar irregularities and a bead 142 having linear irregularities by press working. The bulkhead 140 is reinforced by 141 and beads 142.

For this reason, in the bulk head 140, FIG.
4 to 4, the weight can be reduced by reducing the thickness compared to the bulkhead 4 of the vehicle member 1.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment in which the inventions of claims 1 to 7 and 9 are implemented together.

FIG. 2 is a perspective view showing a main part of the one shown in FIG.

FIG. 3 is a sectional view taken along line WW of FIG.

FIG. 4 is an exploded perspective view of what is shown in FIG.

FIG. 5 is a perspective view showing a bulkhead according to an embodiment of the invention described in claim 8;

FIG. 6 is a sectional view taken along the line ZZ of FIG.

FIG. 7 is a perspective view showing a use state of an example of a conventional product.

FIG. 8 is a perspective view showing a main part of the vehicle member in FIG. 7;

9 is a sectional view taken along line VV of FIG.

FIG. 10 is a perspective view showing a main part of another example of a conventional product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle member 2 1st member 3 2nd member 4,140 Bulkhead 21 Opening of 1st member 27 Inner wall surface of 1st member 31 Back wall of 2nd member 34 Through hole 34a Hole edge of through hole 41 Flange portion 42 Notch portion (passing portion) 43 Passing hole (passing portion) 141 Emboss (reinforcement unevenness) 142 Bead (reinforcement unevenness)

Claims (9)

[Claims] 1. A vehicle member having a closed cross-sectional structure formed by joining and joining a first member and a second member and having a bulkhead for reinforcement provided in a vehicle member extending in a predetermined direction of a vehicle body. In the reinforcing structure, one side of a peripheral portion of the bulkhead is fixed to an inner wall surface of the first member, a through hole is formed in the second member, and another side of the peripheral portion of the bulkhead is A reinforcing structure for a vehicle member, wherein the reinforcing member is coupled to a hole edge. 2. The reinforcing structure for a vehicle member according to claim 1, wherein the first member and the second member have an opening on one side of a cross section, and the openings are opposed to each other. A reinforcing structure for a vehicle member, wherein the reinforcing member is fitted to form the closed cross-section structure. 3. The reinforcing structure for a vehicle member according to claim 1, wherein the first member and the second member have a larger first member and a smaller second member in directions facing each other. A reinforcement structure for a vehicle member, characterized in that: 4. The reinforcing structure for a vehicle member according to claim 1, wherein a flange portion facing the inner wall surface of the second member is provided on the other side of the peripheral portion of the bulkhead. A reinforcing member for a vehicle member, wherein the reinforcing member is formed and the flange portion is coupled to a hole edge of the through hole. 5. The reinforcing structure for a vehicle member according to claim 1, wherein the through hole is provided in a back wall portion in a direction in which the second member faces the first member. A reinforcing member for a vehicle member, which is a welding slot, wherein the other side of the peripheral portion of the bulkhead is welded to the slot. 6. The reinforcing structure for a vehicle member according to claim 1, wherein a passing portion is provided through the bulkhead. 7. The reinforcing member for a vehicle member according to claim 6, wherein the passage portion is a passage hole penetrating through a central portion of the bulkhead, and the passage hole is formed in the first member by a bulk. A reinforcing member for a vehicle member, characterized in that it also serves as a positioning hole through which a positioning pin for positioning a bulkhead when the head is fixed is inserted. 8. The reinforcing structure for a vehicle member according to claim 1, wherein the bulkhead is provided with unevenness for reinforcement. 9. The vehicle member reinforcing structure according to claim 1, wherein the vehicle member is a suspension member extending in a width direction of the vehicle body, and the suspension member has at least one member. A reinforcement structure for a vehicle member, comprising: a plurality of bulkheads.