JP2002019637A - Pillar reinforcing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a cost, enhance workability in fastening of a component fixing bolt, and enhance a reinforcing function by adopting a reinforcing member comprising one component in reinforcement of a passing through part of the component fixing bolt in a pillar. SOLUTION: This pillar reinforcing structure is constituted so that the reinforcing member 28 is arranged between a pillar inner part 2 and a pillar outer part 4 both constituting a side member 1 of closed cross section structure and the passing through part of the bolt 24 for fixing an inner panel reinforcement 3 is reinforced with the reinforcing member 28, and the reinforcing member 28 has a bonding part 28a bonded to a pillar reinforcement 5 arranged between the pillar inner part 2 and the pillar outer part 4; a connecting part 28b integratedly installed in the lower end part of the bonding part 28a; and a cylindrical curl part 28c integratedly installed on the tip side of the connecting part 28b and for inserting the bolt 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar reinforcement structure.

[0002]

2. Description of the Related Art As shown in FIGS. 4 and 5, pillar inners 2 of side members 1 provided on both sides in the width direction of a vehicle include:
An inner panel reinforcement 3 is connected for reinforcement. The details of the connection of the inner panel reinforce 3 to the pillar inner 2 are shown in FIG.

That is, the side member 1 is formed so as to have a pillar inner 2 disposed inside the vehicle and a horizontal sectional shape protruding outward in the vehicle width direction W, and is disposed outside the pillar inner 2 in the vehicle width direction W. Pillar outer 4,
A pillar reinforcement 5 is provided in a space surrounded by the pillar inner 2 and the pillar outer 4 and has a horizontal sectional shape protruding outward in the vehicle width direction W.

The surfaces of the pillar outer 4 and the pillar reinforce 5 parallel to the vehicle longitudinal direction D are in contact with each other over a predetermined range, and the pillar outer 4, the pillar reinforce 5 and the pillar inner 2 are in the vehicle longitudinal direction D.
On the front side, they are bent inward in the vehicle width direction W and then overlapped and fixed by spot welding 6. On the rear side of the vehicle, they are overlapped on a plane parallel to the vehicle longitudinal direction D and fixed by spot welding 7. Thus, the horizontal cross-sectional shape of the side member 1 is formed in a box shape with a closed cross section as a whole.

[0005] Pillar inner 2 and pillar reinforce 5
In order to increase the rigidity of the side member 1, a reinforcing bracket 8 is provided in the space defined by (see FIGS. 6 and 9). The reinforcing brackets 8 are provided with flange portions 8a, 8 that are arranged in the vehicle width direction W so as to face each other.
b and a web portion 8c arranged to connect the flange portions 8a and 8b, and has a horizontal U-shaped cross section opened on the front side in the vehicle longitudinal direction D.

[0006] The flange portion 8a of the reinforcing bracket 8 can come into contact with the pillar reinforcement 5;
The flange portion 8b can come into contact with the pillar inner 2. The web portion 8c of the reinforcing bracket 8 is
Pillar reinforcement 5 on the rear side in the vehicle longitudinal direction D
And is fixed to the pillar reinforcement 5 by spot welding 9.

[0007] The flange portion 8a of the reinforcing bracket 8 includes:
As shown in an enlarged manner in FIG. 7, a bolt insertion hole 12 whose axis extends in the vehicle width direction W is formed so as to communicate with a bolt hole 10 drilled in the pillar outer 4 and a bolt hole 11 drilled in the pillar reinforce 5. At the same time, a flange 8a is formed at the edge of the bolt insertion hole 12 by the flange 8b.
An annular caulked portion 13 caulked toward the side is formed.

[0008] In the flange portion 8b of the reinforcing bracket 8,
As shown in an enlarged manner in FIG. 8, a bolt hole 14 formed in the pillar inner 2 and the inner panel reinforce 3 (FIG. 6)
A bolt insertion hole 16 whose axis extends in the vehicle width direction W is formed so as to communicate with a bolt hole 15 formed in the end bracket 3a of the end bracket 3a, and a flange portion is formed at an edge of the bolt insertion hole 16. An annular caulking portion 17 is formed by caulking 8b toward the flange portion 8a.

The reinforcing bracket 8 has flange portions 8a,
8b, a hollow cylindrical collar 18 is disposed, and the flange 18a-side end of the collar 18 is a caulked portion 13
The flange 18 b side end of the collar 18 is externally fitted and fixed to the caulking portion 17.

[0010] Bolt holes 19 and 20 are formed in the overlapped portion of the pillar outer 4, pillar reinforce 5 and pillar inner 2 on the rear side in the vehicle longitudinal direction D with respect to the reinforcing bracket 8, and the pillar inner 2 and the end bracket are provided. 3a, the overlapping portion on the rear side in the vehicle longitudinal direction D with respect to the inner panel reinforcement 3 is:
Bolt holes 21 and 22 are formed. A cylindrical collar 23 is arranged in the space defined by the pillar reinforce 5 and the pillar inner 2 so as to communicate the bolt holes 19, 20, 21, 22.

The hollow portion of the collar 18 has a side member 1
Hole 10 of pillar outer 4 from outside of vehicle width direction W
Bolt hole 11 of pillar reinforcement 5 and bolt insertion hole 1 of flange portion 8a of reinforcing bracket 8
A bolt 24 is inserted through the bolt 2, and the tip of the bolt 24 is inserted into the bolt insertion hole 16 of the flange portion 8 b of the reinforcing bracket 8, the bolt hole 14 of the pillar inner 2, and the bolt hole 15 of the end bracket 3 a of the inner panel reinforcement 3. And protrudes inward in the vehicle width direction W.
Thus, the inner panel reinforce 3 is fixed to the pillar inner 2 by screwing the nut 25 to the tip of the bolt 24.

In the hollow portion of the collar 23, a side member 1 is provided.
Bolt hole 19 of pillar outer 4 from outside of vehicle width direction W
The bolt 26 is inserted through the bolt hole 20 of the pillar reinforce 5, and the tip of the bolt 26 is connected to the bolt hole 21 of the pillar inner 2, the inner panel reinforce 3
And projecting inward in the vehicle width direction W through the bolt hole 22 of the end bracket 3a. Thus, the inner panel reinforce 3 is fixed to the pillar inner 2 by screwing the nut 27 to the tip of the bolt 26.

[0013]

However, in the above-mentioned conventional pillar reinforcing structure, when reinforcing the penetrating portion of the bolt 24 for attaching the inner panel reinforce 3 of the side member 1, the reinforcing bracket 8 and the collar 1 are used.
In addition, there are problems that two parts, ie, eight parts, are required and the number of parts is increased, and that the collar 18 is required to be caulked for attachment to the reinforcing bracket 8, resulting in a significant increase in cost.

When the bolt 24 is passed through the collar 18,
There is a problem that the bolt 24 is difficult to pass through due to the tip of the bolt 24 hitting the caulking portion 17 inside the collar 18, and the plate thickness of the reinforcing bracket 8 is made as thin as possible to avoid this problem. There is also a problem that the rigidity of the bracket 8 itself cannot be increased so much, and the reinforcing bracket 8 does not sufficiently contribute to reinforcement.

The present invention has been made in view of the above-mentioned circumstances, and when reinforcing a penetration portion of a bolt for mounting a component on a pillar, a reinforcing member composed of one component is employed.
It is an object of the present invention to reduce costs, improve workability regarding fastening bolts for mounting components, and improve a reinforcing function.

[0016]

According to the pillar reinforcing structure of the present invention, a reinforcing member is disposed between a pillar inner side and a pillar outer side which form a pillar having a closed sectional structure, and the reinforcing member penetrates a bolt for mounting a part. A pillar reinforcing structure that reinforces a portion, wherein the reinforcing member includes a fixed portion fixed to a pillar side and a connecting portion integrally provided at one of upper and lower ends of the fixed portion, A cylindrical curl portion integrally provided on the distal end side of the connecting portion and through which the bolt is inserted.

Therefore, according to the present invention, since the cylindrical curl portion which functions as a conventional collar is integrally provided at the distal end side of the connecting portion of the reinforcing member, the component of the pillar is formed by the one-piece reinforcing member. It becomes possible to reinforce the penetration part of the mounting bolt, thereby reducing the number of components and eliminating the need for caulking.

Further, since no interference portion such as the conventional caulking portion is formed inside the curl portion, the bolt can easily pass through the curl portion, and the restriction on the plate thickness of the reinforcing member is eliminated, thereby reducing the strength of the reinforcing member. Can be made thicker than before.

Further, the precision of the component is greatly improved as compared with the case where a reinforcing member is manufactured by caulking a collar of another component as in the prior art, and furthermore, the connecting portion of the reinforcing member is connected to the connecting portion. The curl portion is firmly supported, so that the curl portion is prevented from being bent and deformed.

Conventionally, in order to attach both ends of the collar to the left and right side surfaces of the reinforcing member by caulking, the collar can be held from both ends in the longitudinal direction by the reinforcing member. However, since the distal end side of the connecting portion of the reinforcing member is formed in a tubular shape and the curl portion serving as a collar is integrally provided, the reinforcing member can be made compact.

Further, since the curl portion is formed on the distal end side of the connecting portion of the reinforcing member, there is a problem that the harness inserted into the pillar is in contact with the plate end of the connecting portion of the reinforcing member and is damaged. Avoided beforehand.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an example of an embodiment of the present invention, in which the same components as those shown in FIG. 6 are denoted by the same reference numerals. The basic configuration of the illustrated example is the same as that of the conventional example shown in FIG. 6, but the feature of the illustrated example is that as shown in FIGS. 28 is adopted.

That is, the reinforcing member 28 has a substantially L-shaped cross section when viewed from the vehicle width direction W, and the fixing portion 28a is fixed to the pillar reinforce 5 by spot welding 9, and has a lower end. A curl portion 28c, which is bent inward to form a cylindrical shape and through which the bolt 24 is inserted, is integrally formed at the distal end side of the connecting portion 28b provided integrally with the portion.

According to the pillar reinforcing structure as described above, the curl portion 28c that performs the function of the conventional collar is integrally formed at the distal end side of the connecting portion 28b of the reinforcing member 28. It is possible to reinforce the penetrating portion of the bolt 24 for attaching the inner panel reinforce 3 of the side member 1 by the reinforcing member 28 made of parts, thereby reducing the number of parts and eliminating the need for caulking, thereby achieving a significant cost reduction. be able to.

Further, since an interference portion such as a conventional caulking portion does not occur inside the curl portion 28c, the curl portion 28c
Therefore, the workability of fastening the inner panel reinforce 3 with the bolts 24 can be greatly improved.

Moreover, this eliminates the restriction on the plate thickness of the reinforcing member 28 and makes it possible to increase the plate thickness of the reinforcing member 28 compared to the conventional one. 1, and the side member 1 can be reliably reinforced by the entire structure including the curled portion 28c.

Further, the precision of the component can be greatly improved as compared with the case where a reinforcing bracket is manufactured by caulking a collar of another component as in the prior art, and the connecting portion 28b of the reinforcing member 28 can be used. Since the curl portion 28c continuing to the connecting portion 28b can be strongly supported,
The bending deformation of the curled portion 28c can be reliably prevented.

Further, in order to attach the both ends of the conventional collar to the left and right side surfaces of the reinforcing bracket by caulking, the collar is held at both ends in the longitudinal direction by the reinforcing bracket. Had been invited. However, as shown in the present example, if the curl portion 28c that functions as a collar is formed integrally by bending the distal end side of the connecting portion 28b of the reinforcing member 28 into a cylindrical shape, the reinforcing member 28 can be made compact. It is possible to configure, and the installation space of the reinforcing member 28 can be significantly reduced as compared with the related art.

Further, since the curl portion 28c is formed at the distal end of the connecting portion 28b of the reinforcing member 28, the harness inserted into the side member 1 comes into contact with the distal end of the connecting portion 28b of the reinforcing member 28. It is also possible to avoid a problem that the device is damaged.

FIG. 3 shows another example of the reinforcing member of the present invention. The example shown here is the tip of the connecting portion 28b of the reinforcing member 28 having a substantially L-shaped cross section when viewed from the vehicle width direction W. The curl portion 28c is integrally formed by bending the side outward so as to form a cylindrical shape. Thus, even with the reinforcing member 28 having such a shape, the same operation and effect as those in the illustrated example can be obtained.

It should be noted that the pillar reinforcement structure of the present invention is not limited to the above-described embodiment, but may be applied to pillars other than the side members, and may be used for fixing the inner panel reinforcement. It can be applied to a reinforcing member other than the reinforcing member, the connecting portion of the reinforcing member may be provided integrally with the upper end portion of the fixing portion,
Further, it is needless to say that the parts attached to the inner panel are not necessarily the inner panel reinforce, and that various changes can be made without departing from the scope of the present invention.

[0032]

As described above, according to the pillar reinforcing structure of the present invention, various excellent effects as described below can be obtained.

(I) Since the cylindrical curl portion which functions as a collar is integrally provided at the distal end side of the connecting portion of the reinforcing member, the bolt for mounting parts on the pillar is penetrated by the reinforcing member consisting of one part. The portions can be reinforced, thereby reducing the number of components and eliminating the need for caulking, thereby achieving a significant cost reduction.

(II) Since no interference portion such as a conventional caulking portion is generated inside the curl portion, the bolt can be easily passed through the curl portion, and workability for fastening bolts for mounting components is greatly improved. Can be improved.

(III) Since the restriction on the plate thickness of the reinforcing member is eliminated and the plate thickness of the reinforcing member can be made larger than before, the rigidity of the reinforcing member itself is greatly increased and the reinforcing member is firmly fixed to the pillar side. The pillars can be reliably reinforced by the entire structure including the curl portion.

(IV) Since the restriction on the plate thickness of the reinforcing member is eliminated and the plate thickness of the reinforcing member can be made larger than before, the rigidity of the reinforcing member itself is greatly increased and it is firmly fixed to the pillar side. The pillars can be reliably reinforced by the entire structure including the curl portion.

(V) The precision of the component can be greatly improved as compared with the case where the reinforcing member is manufactured by caulking a collar of another component as in the prior art, and the connecting portion of the reinforcing member allows the connecting portion to be connected. Can be firmly supported, and the curl can be reliably prevented from bending.

(VI) Since the cylindrical curl portion serving as a collar is integrally formed at the distal end side of the connecting portion of the reinforcing member, the reinforcing member can be made compact and the installation space for the reinforcing member can be reduced. Can be greatly reduced as compared with the related art.

(VII) Since the curl portion is formed at the distal end of the connecting portion of the reinforcing member, the harness inserted into the pillar may be damaged by contact with the distal end of the connecting portion of the reinforcing member. Failures can be avoided before they occur.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view showing an example of an embodiment of a pillar reinforcement structure of the present invention.

FIG. 2 is a perspective view of a reinforcing member shown in FIG.

FIG. 3 is a perspective view showing another example of a reinforcing member applied to the pillar reinforcing structure of the present invention.

FIG. 4 is a side view showing a part of a side member of the vehicle.

FIG. 5 is a perspective view of an inner panel reinforcement attached to a pillar inner in the side member of FIG. 4;

6 is a horizontal sectional view showing an example of a conventional pillar reinforcement structure, as viewed in the direction of arrows VI-VI in FIG.

FIG. 7 is an enlarged view showing a portion VII of FIG. 6 excluding bolts.

FIG. 8 is an enlarged view showing a portion VIII of FIG. 6 excluding bolts.

9 is a perspective view showing an assembled state of a reinforcing bracket and a collar of the pillar reinforcing structure shown in FIG.

[Description of Signs] 1 Side member (pillar) 2 Pillar inner 3 Inner panel reinforce (parts) 4 Pillar outer 28 Reinforcement member 28a Fixing portion 28b Connecting portion 28c Curling portion

Claims (1)

[Claims] 1. A pillar reinforcing structure in which a reinforcing member is arranged between a pillar inner side and a pillar outer side forming a pillar having a closed cross-sectional structure, and the reinforcing member reinforces a penetrating portion of a bolt for mounting a component. The reinforcing member includes a fixing portion fixed to the pillar side, a connecting portion integrally provided at one of upper and lower ends of the fixing portion, and a connecting portion integrally provided at a tip end side of the connecting portion. And a cylindrical curl portion through which the bolt is inserted.