JP4134363B2 - Structure around the rocker tip of the vehicle body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle body, and more particularly to a structure around a rocker tip that can cope with an offset collision of a vehicle.
[0002]
[Prior art]
FIG. 11 is a side view around the tip of the rocker 1, and FIG. 12 is a cross-sectional view taken along the line AA in FIG. 11 (right side of the vehicle). In this rocker 1, as shown in FIG. 12, a rocker inner panel 2 and a rocker outer panel 3 are interposed, and a front pillar rear reinforcement 4 and a rocker reinforcement 5 are interposed therebetween. A rocker outer panel 2 is provided with a fender liner 6 made of, for example, a synthetic resin material that forms a tire house of the front tire Tr with a predetermined distance L from the tip 1a of the rocker 1 in a continuous manner. A dash panel 7 is disposed between the left and right rockers 1.
[0003]
[Problems to be solved by the invention]
However, in the vehicle Cr provided in this way, as shown in FIG. 15, when the opponent vehicle or the barrier W and the right front portion in the figure collide with each other (when the front tire Tr is not steered), the front right side As shown in FIG. 12, the tire Tr moves inward along the trajectory line T and breaks the fender liner 6 and collides with the dash panel 7 without interfering with the tip 1a of the rocker 1 to break or deform it. As a result, there is a problem that the interior space is reduced and the safety of the passenger cannot be ensured. It is an object of the present invention to provide a rocker tip structure of a vehicle body that can prevent deformation around the interior space portion on the front side due to the impact of tire movement due to the offset collision of the vehicle and can ensure the safety of the occupant. It is what.
[0004]
[Means for Solving the Problems]
The above-described problem is solved by the invention of claim 1.
According to the first aspect of the present invention, there is provided a front pillar portion including a front pillar outer panel portion and a front pillar reinforcement of a vehicle body, and a rocker portion including a rocker inner panel, a rocker outer panel, a rocker reinforcement and a pillar lower reinforcement. The rocker inner panel, the rocker outer panel, the rocker reinforcement and the pillar lower reinforcement extend in close proximity to the inside of the front tire fender liner, and each tip closes to a cross-section. The front end of the rocker that joins and regulates the movement of the front tire close to the inside of the fender liner, the front pillar outer panel portion and the front pillar reinforcement being formed in a divergent shape on the front side and joined to the rocker portion In addition to forming a lunge, the corners between the left and right rocker tip flanges and the floor first member have a substantially rectangular cross-section guard piece between the rocker inner panel and the floor first member. It is characterized by having a configuration in which a substantially convex reinforcement that is sealed with is attached.
[0005]
【The invention's effect】
If the vehicle does not collide with the barrier, etc., when the front tire is not steered, the front tire will move along the trajectory line, but the rocker tip flange will move on the front side of the dash panel. Since the tire is protruded in the line, the movement of the tire is prevented by the rocker tip flange portion, and it is prevented from colliding with the dash panel to reduce the interior space portion, thereby ensuring the safety of the occupant.
In particular, this rocker tip flange is a joint between the rocker outer panel and the wide front pillar outer panel that joins the front pillar reinforcement, the pillar lower reinforcement, the rocker reinforcement, and the rocker inner panel. Therefore, the rigidity of the rocker tip flange portion can be increased and the movement of the front tire can be reliably prevented.
In addition, when the vehicle has an offset collision with a barrier or the like with the front tire at the steering angle, the front tire moves with the rocker tip flange in a state of grazing and tries to collide with the dash panel. Since a convex reinforcement is attached to the corner formed by the first part and the floor first member, the front tire will collide with this reinforcement, and the impact force is the rocker tip flange part and the floor first member. The left and right guard pieces are reinforced by the sealing surface, the deformation is remarkably reduced, and the front tire is prevented from moving to the dash panel to reduce the interior space. The safety of passengers can be ensured.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
[ Reference Example 1 ]
Next, Reference Example 1 of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a front part of a vehicle, FIG. 2 is a perspective view of FIG. 1, and FIG. As shown, a rocker outer panel 22 and a front pillar outer panel 24 are joined to the front side of the left and right side outer panels 21 and the front end of the rocker outer panel 22 (the description of other parts is omitted). In addition, a front pillar reinforcement 26 is disposed inside the front pillar outer panel portion 24, and a pillar rod having a predetermined length along the rocker outer panel portion 22 is disposed on the lower side of the front pillar reinforcement 26. An allied reinforcement 28 is formed.
[0007]
Further, as shown in FIGS. 1 and 6, a rocker reinforcement 30 is disposed inside the pillar lower reinforcement 28, and a cowl side panel 31 is disposed inside the lower portion of the front pillar reinforcement 26. A dash panel 7 is attached between the left and right cowl side panels 31.
[0008]
As shown in FIG. 3, the tip end portion 34a of the rocker inner panel 34 is bent toward the inner end of the fender liner 6 as shown in FIG. It extends from the panel 2 by a predetermined length, that is, by an interval L from the tip 1a of the conventional rocker 1 to the fender liner 6. Further, the pillar rear reinforcement 28 of the front pillar reinforcement 26 located on the outer side in accordance with the rocker inner panel 34 is bent toward the front end portion 34a of the rocker inner panel 34 as shown in the figure. Thus, the leading end edge portions are joined to form a leading end flange portion 35. As shown in FIG. 4, the tip portions 28a and 34a are located at predetermined positions on the upper portions of the front pillar outer panel portion 24 and the front pillar reinforcement 26, that is, the hinge mounting portions 36 of the lower hinge member 41 of the front door 11 described later. It is formed so as to expand toward the lower front side from the upper position.
[0009]
Further, as shown in FIG. 6, a rocker reinforcement 30 having a predetermined length and a substantially U-shaped cross section is attached to the inner side of the pillar lower reinforcement 28 along the rocker inner panel 34, and an outer piece 30a thereof. Is adjacent to the pillar allied reinforcement 28, and its tip end portion 30b is overlapped with the inside of the tip end portion 28a of the pillar alley reinforcement 28 (see FIG. 3).
[0010]
Further, as shown in FIG. 3, the rocker outer panel portion 24 is provided with a slanted portion 24 a toward the pillar lower reinforcement 28, and a tip portion 24 b of the rocker outer panel portion 24 extends along the outer side of the tip portion 28 a of the pillar lower reinforcement 28. A portion 24b is formed. The tip portions 24b, 28a, 30b extended in this way are joined by spot welding or the like, and the tips of the rocker inner panel 34, the pillar lower reinforcement 28 and the rocker outer panel portion 24 are similarly spot welded. The rocker tip flange portion 35 having a closed cross-sectional shape is positioned at a position close to the inside of the fender liner 6 after being joined, and the rocker tip flange portion 35 is a dash of the trajectory line T of the tire Tr when the vehicle has an offset collision. It is located so as to protrude in the movement trajectory line T on the front side from the panel 7.
[0011]
As described above, the rocker front end portion 35, which is a joint portion between the rocker outer panel portion 22 and the front pillar outer panel portion 24, has a front pillar reinforcement 26, its pillar lower reinforcement 28, rocker reinforcement 30, and a rocker inner panel 34. And a rocker tip flange portion 35 having a closed cross-sectional shape extending close to the inside of the fender liner 6 so as to be positioned within the movement trajectory line T of the tire Tr. .
[0012]
Therefore, for example, when the vehicle Cr has an offset collision with the barrier W, the front tire Tr is moved along the movement trajectory line T as described above, but the rocker tip flange portion 35 is located on the front side of the dash panel 7. Since the tire Tr protrudes into the movement trajectory line T of the tire Tr, the movement of the tire Tr is blocked by the rocker tip flange portion 35, and it is prevented from colliding with the dash panel 7 to reduce the interior space portion. Safety can be secured.
In particular, the rocker tip flange portion 35 is a joint portion between the rocker outer panel portion 22 and the front pillar outer panel portion 24 that is widened toward the end, and the front pillar reinforcement 26, the pillar rear reinforcement 28, the rocker reinforcement 30 and the rocker inner panel. 34, the rigidity of the rocker tip flange portion 35 is enhanced, and the movement of the front tire Tr can be reliably prevented.
[0013]
[ Reference Example 2 ]
Next, when the vehicle collides with the barrier W by an offset, the tire Tr moves inward along the movement trajectory line T and is moved upward in the direction of the arrow as shown in FIG. When the impact force F collides, there is a problem that the cross section is broken near the lower hinge mounting portion 36 for attaching the front door 11 on the lower side of the front pillar portion.
[0014]
That is, conventionally, as shown in FIG. 13, a front pillar outer panel 8 and a front pillar reinforcement 9 having a substantially U-shaped cross section are provided on the lower side of the front pillar portion, and a cowl side panel 10 is provided on the inner side. Since the front door 11 is attached to the lower side of the front pillar portion via the lower hinge member 12, the front door 11 is placed at a predetermined position on the lower side as shown in the figure. A hinge retainer 13 having a substantially dish-shaped cross section shown in FIG. 14 is brought into contact with the back side of the pillar reinforcement 9 and is bolted at a predetermined pitch p1. However, the cross-sectional configuration of the front pillar portion in the length direction is a relatively simple closed cross section formed by superposition of the front pillar outer panel 8 and the front pillar reinforcement 9 having a substantially U-shaped cross section and the cowl side panel, and the hinge. Since the retainer 13 only secures the mounting support strength of the front door 11, the impact force F of the tire Tr is concentrated on the bolt hole of the hinge mounting portion, and the cross section is likely to be broken on the lower side of the front pillar portion. For this reason, there is a problem that the passenger compartment space is reduced and the safety of the passengers cannot be ensured.
[0015]
In view of this, the front pillar portion is configured as follows in order to prevent the cross section from being broken. 4 is an exploded perspective view of the side outer panel 21, the front pillar reinforcement 26, and the cowl side panel 31, FIG. 5 is a sectional view taken along line BB in FIG. 1, and FIG. 6 is a sectional view taken along line CC in FIG. is there.
In this reference example 2 , as shown in FIG. 4, a predetermined position above the front pillar outer panel portion 24 and the front pillar reinforcement 26, that is, below the upper position of the hinge mounting portion 36 of the lower hinge member 41 of the front door 11. Since it is formed in a divergent shape toward the front side, this hinge mounting portion 36 is formed wide in the front direction, and the hinge mounting portion 36 on the front pillar reinforcement 26 side is shown in FIGS. The hinge retainer 37 having the bulk surfaces 38 and 39 is attached and the lower hinge member 41 is attached as shown in FIG.
[0016]
The hinge retainer 37 having the bulk surfaces 38 and 39 is press-molded, and in a horizontal section thereof, a predetermined range on the outer vertical edge 26b is the same as the rear vertical piece 37a along the rear vertical edge 26a of the front pillar reinforcement 26. And an inclined piece 37c extending from the tip of the outer vertical piece 37b to the front vertical edge 26c of the front pillar reinforcement 26 at a predetermined angle, and an end of the inclined piece 37c. A front vertical piece 37d is formed along the front vertical edge 26c, and the horizontal cross section is formed in a substantially U shape. The front and rear vertical pieces 37d and 37a of the hinge retainer 37 are provided so as to expand downward along the vertical edges 26c and 26a of the front and rear portions of the front pillar reinforcement 26.
[0017]
In the longitudinal section, as shown in FIG. 6, the upper edge side of the front and rear vertical pieces 37d, 37a is inclined downward at a predetermined angle toward the outer vertical piece 37b, and the upper edge and the outer vertical piece 37b. An upper bulk surface 38 is integrally formed between them in a shielding manner. Further, a lower bulk surface 39 that is about ½ of the upper bulk surface 38 is formed between the lower edge of the front and rear vertical pieces 37d and 37a and the outer vertical piece 37b. Further, a mounting nut 40 is fixed by welding means at a predetermined pitch p (p2> p1) at a substantially central portion in the front-rear direction of the inner side surface of the outer vertical piece 37b.
[0018]
The hinge retainer 37 having the upper and lower bulk surfaces 38, 39 formed in this way is a rear vertical edge 26a, an outer vertical edge 26b, and a front vertical edge 26c on the inner side surface of the front pillar reinforcement 26 of the hinge mounting portion 36. The lower hinge member 41 is screwed to the mounting nut 40 by mounting bolts 40a.
[0019]
In this manner, the front pillar reinforcement 26 is disposed inside the front pillar outer panel portion 24, and the hinge retainer 37 having the bulk surfaces 38 and 39 is attached to the inside of the hinge mounting portion 36. Even if the impact force F of the tire Tr acts on the hinge mounting portion 36 when the vehicle Cr collides with the barrier W as described above, the front pillar reinforcement 26 on the inner side of the hinge mounting portion 36 is not affected. Rigidity is enhanced by the hinge retainer 37 having the bulk surfaces 38 and 39 at the upper and lower portions attached thereto, and the impact force F is received by the upper and lower bulk surfaces 38 and 39, so that the hinge mounting portion 36 is deformed. Therefore, the indoor space can be prevented from being reduced, and passenger safety can be ensured.
[0020]
In particular, since the impact force F is concentrated at the position where the bulk surfaces 38 and 39 are provided, the upper and lower sides thereof are weakened, but the lower side where the bulk surfaces 38 and 39 are disposed from the direction of action of the tire Tr. Then, since the front pillar outer panel portion 24 and the front pillar reinforcement 26 are formed in an expanded shape as described above, the front pillar outer panel portion 24 and the front pillar reinforcement 26 can sufficiently resist the impact force F, and are caused by the deformation of the indoor space portion around the front pillar. Reduction can be greatly reduced.
[0021]
Further, since the front pillar outer panel portion 24 and the front pillar reinforcement 26 are provided in an expanded shape on the lower side, the hinge mounting portion 36 is also provided longer in the front-rear direction than the conventional one, so that the lower hinge member 41 The mounting pitch p2 can be made larger than the conventional mounting pitch p1, and the door 11 can be prevented from being lowered. Further, since the hinge mounting portion 36 of the front door 11 is enhanced in rigidity by the hinge retainer 37 having the bulk surfaces 38 and 39, the feeling of weight when the front door 11 is opened and closed becomes good.
[0022]
The bulk surfaces 38 and 39 of the hinge retainer 37 are illustrated with the upper bulk surface 38 being larger and the lower bulk surface 39 being smaller. However, the present invention is not limited to this. For example, the hinge retainer 37 may be formed upside down. Moreover, the structure which forms a big bulk surface in any one of upper and lower sides may be sufficient.
[0023]
First Embodiment
Next, a first embodiment in accordance with FIGS. 8-10. In the first embodiment described above, the countermeasure configuration when the front tire Tr does not steer is offset when the offset collision occurs. However, in the first embodiment , the front tire Tr steers when the offset collision occurs. A coping configuration will be described.
Incidentally, the rocker tip around this first embodiment is omitted the description referred by the same reference numerals are configured similarly as in Reference Example 1.
[0024]
In the configuration around the rocker front end portion of the reference example 1 , for example, when the vehicle Cr has an offset collision with the barrier W while the front tire Tr is steered, the front tire Tr has a rocker front flange as shown in FIG. The dash panel 7 may move so as to graze the part 35 and be damaged or deformed, so that the interior space of the vehicle may be reduced and the safety of the occupant may not be ensured.
Therefore, the first embodiment is configured as follows in addition to the rocker tip configuration of the reference example 1 .
[0025]
Between the predetermined positions of the left and right rocker inner panels 34 around the rocker front end portion, a floor first member 46 having a substantially U-shaped cross section formed on the floor panel 45 is attached via attachment portions 46a formed at both ends thereof. Reinforcement 47 is fastened to the left and right corners between the floor first member 46 and the rocker tip flange portion side of the rocker inner panel 34 by the welding means.
[0026]
The reinforcement 47 is formed by press molding, and is formed symmetrically, and as shown in FIG. 10, the guard pieces 48a and 48b bent at a predetermined angle and the upper and lower portions between the guard pieces 48a and 48b. It is formed in a substantially triangular convex shape that opens inward by a sealing surface 49 formed in a shielding shape, and left and right mounting edges 50a and 50b and upper and lower mounting edges 50c and 50d are formed on the four circumferences of the opening. Yes.
[0027]
As shown in FIGS. 8 and 9, the reinforcement 47 formed in this way has the mounting edge 50 a at a predetermined position of the rocker tip flange portion 35, and the mounting edge 50 b at a predetermined position of the floor first member 46. The upper and lower mounting edges 50c and 50d are fixed to the rocker inner panel 34 by the welding means. In this attached state, the dash panel 7 is positioned at the upper part on the rear side of the reinforcement 47 as shown in FIG.
[0028]
Thus, in the state where the reinforcement 47 is attached to the corners of the left and right rocker tip flange portions 35 and the floor first member 46 of the floor panel 45, the vehicle Cr becomes a barrier W with the front tire Tr steered. When the front tire Tr is moved so as to squeeze the rocker tip flange portion 35, the front tire Tr collides with the reinforcement 47. The impact force F caused by the collision of the front tire Tr is distributed and buffered by the rocker front end flange portion 35 and the floor first member 46 mainly by the left and right guard pieces 48a and 48b, and the left and right guards. The pieces 48a and 48b are reinforced by the sealing surface 49, the deformation thereof is remarkably reduced, and the front tire Tr is prevented from moving to the dash panel 7 and the interior space is prevented from being reduced, so that the safety of the occupant Can be secured.
[Brief description of the drawings]
FIG. 1 is a side view of a front main part of a vehicle according to a reference example 1 ;
2 is a perspective view of the left part of FIG.
3 is a cross-sectional view taken along line AA in FIG. 1 (vehicle right side).
4 is an exploded perspective view of a side outer panel, a front pillar reinforcement, and a cowl side panel according to Reference Example 2. FIG.
5 is a cross-sectional view taken along line BB in FIG. 1 (right side of the vehicle).
6 is a cross-sectional view taken along the line CC of FIG. 1 (right side of the vehicle).
7 is an enlarged perspective view of a hinge retainer according to Reference Example 2. FIG.
FIG. 8 is a sectional view around the tip of the right rocker according to the first embodiment of the present invention.
FIG. 9 is a perspective view of the lower surface side around the tip of the right rocker.
FIG. 10 is a perspective view of a reinforcement.
FIG. 11 is a side view of the front side of a conventional vehicle.
12 is a cross-sectional view taken along line AA in FIG. 11 (right side of the vehicle).
13 is a sectional view taken along line BB in FIG. 11 (right side of the vehicle).
FIG. 14A is a cross-sectional view of a conventional hinge retainer.
(b) It is a perspective view of the conventional hinge retainer.
FIG. 15 is an explanatory diagram of an offset collision.

Claims (1)

A rocker tip that joins and forms a front pillar part consisting of a front pillar outer panel part and a front pillar reinforcement of a vehicle body, and a rocker part consisting of a rocker inner panel, a rocker outer panel, a rocker reinforcement and a pillar lower reinforcement. Around
The rocker inner panel, the rocker outer panel, the rocker reinforcement and the pillar lower reinforcement extend in close proximity to the inside of the fender liner of the front tire, each tip is closed and joined to the cross section, and the front pillar outer panel The front pillar reinforcement is formed in a divergent shape on the front side and joined to the rocker portion to form a rocker tip flange portion that regulates the movement of the front tire close to the inside of the fender liner. At the corner formed by the rocker tip flange and the floor first member, a substantially convex rein is formed by sealing the upper and lower sides of a guard piece having a substantially square cross section between the rocker inner panel and the floor first member. Rotating the rocker tip of the vehicle body, characterized in that the hosement is attached Structure.

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