JP2014159187A - Reinforcement device of pillar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a common component in a reinforcement device which reinforces a pillar of a vehicle.SOLUTION: A pillar reinforcement device 300 comprises: a frame 310 disposed in an internal space of a pillar of a vehicle; and first foam bodies 320 and second foam bodies 330 which are attached to the frame 310, have the same shape, and serve as common components. The frame 310 comprises: multiple transverse members 312 which are arranged parallel to each other at a predetermined interval in a longitudinal direction of the internal space of the pillar; and a longitudinal member 314 which extends in the longitudinal direction of the internal space of the pillar and connects the multiple transverse members with each other. The first foam body 320 and the second foam body 330 are disposed between the two adjacent transverse members 312. Clips 340, each of which fits in a fixing hole opened at the pillar, are integrally attached to both ends of the longitudinal member 314.

Description

  The present invention relates to a pillar reinforcing device.

  In automobiles, the front pillar, which is a part of the white body, is an important structural member that ensures the strength of the vehicle body. However, if the cross-section of the front pillar is increased in order to ensure the strength of the front pillar, the driver's blind spot is widened. For this reason, as described in Japanese Patent Application Publication No. 2003-522075 (Patent Document 1), there has been proposed a reinforcing device that improves the strength of the front pillar by filling the internal space of the front pillar with a foaming agent.

Japanese translation of PCT publication No. 2003-522075

  However, since the reinforcing device proposed in Patent Document 1 is obtained by attaching a foam to a frame (framework) adapted to the cross-sectional shape of the reinforcing portion, if the cross-sectional shape of the front pillar is slightly different, common reinforcement The device cannot be used. For this reason, it is necessary to prepare various reinforcing devices suitable for the cross-sectional shape of the reinforcing portion. For example, the management of the reinforcing device may be complicated. Note that the same problem occurs not only in the front pillar but also in other pillars such as a center pillar and a rear pillar as a reinforcing part of the automobile.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pillar reinforcing device in which components are shared as much as possible.

  A pillar reinforcing device according to the present invention includes a frame disposed in an interior space of a pillar of an automobile, and a plurality of foams attached to the frame and having the same shape.

  According to the present invention, a reinforcing device is formed by attaching a plurality of foams having the same shape, which is a common part, to a frame adapted to the cross-sectional shape of the reinforcing portion of the pillar. Can be prevented from becoming complicated.

It is a side view which shows an example of the white body of a motor vehicle. It is explanatory drawing of the reinforcement which reinforces the junction part of a front fender and a front pillar. It is AA sectional drawing in FIG. It is explanatory drawing of the attachment position of a pillar reinforcement apparatus. It is a perspective view which shows the detail of a pillar reinforcement apparatus. The detail of a flame | frame is shown, (A) is a top view, (B) is a front view. It is a perspective view of the 1st foam. It is a perspective view of the 2nd foam. It is explanatory drawing of the clip which fixes a 2nd foam. It is explanatory drawing of the state which attached the pillar reinforcement apparatus to the front pillar. It is explanatory drawing of the state which the foam of the pillar reinforcement apparatus foamed.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows an example of a white body of an automobile.
The side surface of the white body 100 includes a front fender 110, a roof rail 120, a side sill 130, a front pillar (A pillar) 140, a center pillar (B pillar) 150, a rear pillar (C pillar) 160, and a rear fender 170. Are integrally formed by welding assembly.

  The front fender 110 is a structural member that covers the periphery of a front wheel (not shown), and includes an inner panel located inside the vehicle width and an outer panel located outside the vehicle width. The roof rail 120 is a structural member that supports the left and right ends of the roof panel 180 and extends in the front-rear direction of the vehicle body, and includes an inner panel positioned inside the vehicle width, an outer panel positioned outside the vehicle width, including. The side sill 130 is a structural member that forms a sill on the side of the vehicle body and extends from the lower rear end of the front fender 110 toward the rear of the vehicle body. A positioned outer panel. The front pillar 140 is a structural member that connects the upper rear end of the front fender 110 and the front end of the roof rail 120 and extends obliquely rearward of the vehicle body. The front pillar 140 includes an inner panel positioned inward of the vehicle width, And an outer panel located on the side. The center pillar 150 is a structural member extending in the vertical direction of the vehicle body that connects the middle of the roof rail 120 and the middle of the side sill 130, and includes an inner panel positioned inside the vehicle width and an outer panel positioned outside the vehicle width. And including. The rear pillar 160 is a structural member extending in the vertical direction of the vehicle body that connects the rear end of the roof rail 120 and the rear end of the side sill 130, and includes an inner panel positioned inside the vehicle width and an outer panel positioned outside the vehicle width. A panel. The rear fender 170 is a structural member that covers the periphery of a rear wheel (not shown) and extends from the rear end of the rear pillar 160 toward the rear of the vehicle body, and is positioned on the inner side of the vehicle width and on the outer side of the vehicle width. An outer panel.

  A joint portion 200 between the front fender 110 and the front pillar 140 is, for example, a reinforcement that is an example of a reinforcing member, as shown in FIG. It is reinforced by the ment 210. Specifically, an inner reinforcement 212 having a surface following the inner surface shape is integrated by welding or the like from the inner panel of the front fender 110 to the inner panel of the front pillar 140. Further, as shown in FIG. 3, the front pillar 140 has a surface between the inner panel 142 and the outer panel 144 spaced apart from the inner surface of the outer panel 144 via flanges 142A and 144A located at both ends thereof. An outer reinforcement 214 is sandwiched.

  Further, as shown in FIG. 4, the interior of the front pillar 140 is reinforced by filling a foaming agent into an internal space (hereinafter abbreviated as “pillar space”) defined by the front fender 110 and the front pillar 140. The pillar reinforcing device 300 is attached. Therefore, as shown in FIG. 2, fixing holes 220 for fixing the pillar reinforcing device 300 are formed in the inner reinforcement 212 of the reinforcement 210 and the inner panel 142 of the front pillar 140, respectively.

  As shown in FIG. 5, the pillar reinforcing device 300 has the same shape that is attached to the frame 310 and the frame 310 made of elastic nylon or the like disposed in the inner space of the front pillar 140 of the automobile. It includes a first foam 320 and a second foam 330 having the same shape. Here, the first foam 320 and the second foam 330 include a foaming agent that foams when heated to a predetermined temperature or higher. Moreover, the 1st foam 320 and the 2nd foam 330 are mentioned as an example of the several foam which has the same shape.

Frame 310, as shown in FIG. 6, a plurality of transverse members 312 arranged parallel at predetermined intervals L ₁ in the longitudinal direction of the pillar space, extending in the longitudinal direction of the pillar space, connecting a plurality of transverse members 312 A vertical member 314. The transverse member 312 has a similar shape following the cross section of the pillar space at the arrangement position, and is arranged perpendicular to the longitudinal direction of the pillar space. The vertical member 314 includes a first member 314A that serves as a mounting surface for the front pillar 140, a second member 314B that rises vertically from the first member 314A while connecting the two adjacent horizontal members 312; And a third member 314C extending in parallel with the first member 314A from one surface of the member 314B. The first member 314A, the second member 314B, and the third member 314C are made of a plate material having a flat surface. The first member 314 </ b> A has a shape in which a plate material is located at the approximate center in the cross section of the pillar space.

  Here, since the 2nd member 314B is arrange | positioned so that the 1st foam 320 and the 2nd foam 330 may be located in the approximate center in the cross section of pillar space, it is not necessarily arrange | positioned on the same line There is also a possibility.

As shown in FIG. 7, the cross section of the first foam 320 includes an upper surface of the third member 314 </ b> C, one side surface of the second member 314 </ b> B positioned above the third member 314 </ b> C, and the second member 314 </ b> B. It has a shape that follows the other side surface, the top surface of the first member 314A that is continuous with the other side surface of the second member 314B, and a similar shape that follows the cross section of the pillar space. Further, the axial length of the first foam 320 has substantially the same size as the arrangement interval L ₁ of the horizontal members 312 so that the first foam 320 can be arranged between the two adjacent horizontal members 312.

As shown in FIG. 8, the second foam 330 has a rectangular shape that is partitioned by the first member 314 </ b> A, the second member 314 </ b> B, the third member 314 </ b> C, and two adjacent horizontal members 312. It has a rectangular parallelepiped shape that follows the recess. Here, the “cuboid” may be a rectangular parallelepiped in appearance. Further, the length of the second foam 330 has substantially the same size as the arrangement interval L ₁ of the horizontal members 312 so that the second foam 330 can be arranged between the two adjacent horizontal members 312.

  A pair of projections 314D for fixing the first foam 320 are provided at the tip of the second member 314B. On the tip of the pair of protrusions 314D, a slope that extends from the tip to the base end on surfaces that are separated from each other, and a parallel face that extends in parallel with the third member 314C from this slope are formed. For this reason, the pair of protrusions 314 </ b> D has a shape that elastically deforms in a direction away from each other when the first foam 320 is pressed against the tip thereof. Accordingly, after the first foam 320 is attached to the frame 310, the pair of protrusions 314D return to their original shapes, so that the first foam 320 can be reliably fixed to the frame 310. In order to facilitate the attachment of the first foam 320 to the frame 310, a slit or the like that penetrates the protrusion 314D may be formed at a predetermined position of the first foam 320.

  Further, in order to fix the second foam 330 to the second member 314B facing the second foam 330, for example, as shown in FIG. 9, a claw portion extending from the distal end toward the proximal end A clip 314E having a protrusion is provided. For this reason, after the second foam 330 is attached to the frame 310, the second foam 330 is difficult to be removed by the claw portion of the clip 314E, so the second foam 330 is fixed to the frame 310. Can be sure. In this case, a slit or the like for fitting the clip 314E may be formed at a predetermined position of the second foam 330.

  Note that the fixing of the first foam 320 and the second foam 330 to the frame 310 is not limited to the protrusion 314D and the clip 314E, and may be performed by, for example, an adhesive.

  Further, clips 340 that fit into the fixing holes 220 formed in the inner panel 142 of the front pillar 140 and the inner reinforcement 212 of the reinforcement 210 are integrally formed at both ends of the first member 314A of the vertical member 314. Is attached. The clip 340 has a claw portion 342 that spreads from the distal end toward the proximal end. For this reason, when the pillar reinforcing device 300 is attached to the front pillar 140, the claw portion 342 of the clip 340 is elastically deformed and narrowed, so that the clip 340 can be fitted into the fixing hole 220. Then, after the clip 340 is fitted into the fixing hole 220, the claw portion 342 returns to its original shape, so that the pillar reinforcing device 300 can be reliably fixed to the front pillar 140. The pillar reinforcing device 300 is fixed to the front pillar 140 not only by the clip 340 but, for example, by using a bolt as an example of a fastening member using insertion holes provided at both ends of the first member 314A. It may be.

Next, a method for reinforcing the front pillar 140 will be described.
In the welding process of the white body 100, before forming the pillar space of the front pillar 140, the operator enters the fixing hole 220 opened in the inner panel 142 of the front pillar 140 and the inner reinforcement 212 of the reinforcement 210. The pillar reinforcing device 300 is attached. In the state in which the pillar space of the front pillar 140 is formed, the first foam 320 and the second foam 330 of the pillar reinforcing device 300 are positioned at the approximate center of the pillar space as shown in FIG. .

  Then, in the painting process of the white body 100, for example, when the heat of the paint baking operation is received, the first foam 320 and the second foam 330 are foamed, and as shown in FIG. The pillar space in which is disposed is filled with a foaming agent. At this time, the first foam 320 and the second foam 330 are integrated by foaming. For this reason, the predetermined location of the front pillar 140 can be reinforced.

  At this time, for example, even if the pillar space has a slightly different cross-sectional shape due to a difference in the form of the same vehicle type, the first foam 320 and the second foam, which are common parts, are used for the frame 310 adapted to the form. This can be dealt with by assembling the body 330. For this reason, the number of parts is reduced, and the management thereof is not complicated. In addition, what is necessary is just to make it assemble | attach the pillar reinforcement apparatus 300 according to a vehicle model etc. in the sub process of the process of attaching the pillar reinforcement apparatus 300 with respect to the white body 100, for example.

  The location of reinforcement by the pillar reinforcing device 300 is not limited to the front pillar 140 but may be various pillars such as the center pillar 150 and the rear pillar 160.

140 Front pillar 150 Center pillar 160 Rear pillar 220 Fixing hole 300 Pillar reinforcing device 310 Frame 312 Horizontal member 314 Vertical member 314A First member 314B Second member 314C Third member 314D Projection 314E Clip 320 First foam 330 First 2 foam 340 clips

Claims (10)

A frame disposed in the interior space of the automobile pillar;
A plurality of foams having the same shape attached to the frame;
A pillar reinforcing device comprising: The frame is
A plurality of transverse members arranged in parallel at predetermined intervals in the longitudinal direction of the internal space of the pillar;
A longitudinal member extending in the longitudinal direction of the internal space of the pillar and connecting the plurality of transverse members;
Including
The foam is disposed between two adjacent transverse members;
The pillar reinforcing device according to claim 1. The vertical member is
A first member serving as a mounting surface to the pillar;
A second member that rises vertically from the first member while connecting two adjacent lateral members;
A third member extending in parallel with the first member from one surface of the second member;
Including
The foam is
The upper surface of the third member, one side surface of the second member located above the third member, the other side surface of the second member, and the other side surface of the second member A first foam having a shape following the top surface of the first member;
A second foam having a rectangular parallelepiped shape following a rectangular recess defined by the first member, the second member, the third member, and the two adjacent lateral members;
including,
The pillar reinforcing apparatus according to claim 2, wherein: A pair of protrusions for fixing the first foam project from the tip of the second member,
The pillar reinforcing device according to claim 3. The tip of the protrusion is formed with an inclined surface that extends from the tip to the base on the surfaces that are spaced apart from each other.
The pillar reinforcing device according to claim 4. A clip for fixing the second foam is protruded from the second member facing the second foam.
The pillar reinforcing device according to any one of claims 3 to 5, wherein At both ends of the first member, clips that fit into the fixing holes provided in the pillar are integrally attached.
The pillar reinforcing device according to any one of claims 3 to 6, wherein the pillar reinforcing device is any one of the above. An insertion hole through which the fastening member is inserted is opened at both ends of the first member.
The pillar reinforcing device according to any one of claims 3 to 6, wherein the pillar reinforcing device is any one of the above. The transverse member has a similar shape following the cross section of the internal space of the pillar.
The pillar reinforcing device according to any one of claims 2 to 8, wherein the reinforcing device is a pillar. The frame is attached to a front pillar;
The pillar reinforcing device according to any one of claims 1 to 9, wherein the pillar reinforcing device is any one of the above.