JPH0796743A - Vehicle lateral structure - Google Patents

Abstract

PURPOSE:To achieve the absorption of an impact early in transmitting the load of a vehicle collision early as well by installing a load transmitting member in a range from the end of a reinforcing member installed in the longitudinal direction in the inner part of a door to a part to be opposed to the edge of a door opening part in a door inner panel. CONSTITUTION:At the time of a vehicle lateral collision, collisional load acts on an impact beam 28 via a door panel 33 of a rear side door 20. In this case, this load is transmitted to the vicinity of a side end of a base 30A in a rear wall part 30B of a door inner panel 30 via a reinforcement 34 from a rear end 28A of the impact beam 28. In succession, the base 30A of the door inner panel 30 is made contact with an edge part 36A of a quarter panel 36, thereby transmitting the load to the edge part 36A. Therefore any impact absorbable at the early stage of the impact. On the other hand, a closed section part 35 formed with the reinforcement 34, a bracket 32 and the door inner panel 30 is made contact with another closed section part 42 of a body, whereby rigidity is improved and thus the impact load is surely transmitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle side structure having a reinforcing member inside a door for protecting a passenger by preventing the door from moving toward the inside of the vehicle.

[0002]

2. Description of the Related Art Conventionally, when a load is applied to the side surface of a vehicle from the outside in the vehicle width direction, the outer panel of the door may be deformed inward in the vehicle width direction. A vehicle side part structure is known in which a reinforcing member capable of withstanding a lateral load is provided along the longitudinal direction of the vehicle body,
An example thereof is shown in Japanese Utility Model Laid-Open No. 2-48418.

As shown in FIG. 11, in this vehicle side structure, an impact beam 74 is arranged inside the door constituted by a door outer panel 70 and a door inner panel 72 along the longitudinal direction of the vehicle body. When a load acts on the door outer panel 70 from the outside in the vehicle width direction by the impact beam 74, the door outer panel 7
0 is prevented from being deformed inward in the vehicle width direction.

[0004]

However, in this vehicle side structure, the vehicle body front-rear direction rear end portion 74A of the impact beam 74 is joined to the step portion 72A formed on the door inner panel 72. The overlap amount L between the impact beam 74 and the edge portion 76 of the door opening of the body 75 that overlaps the portion 72A is small. In addition, structurally, the strength of the edge portion 76 is low. Therefore, the rear end portion 74A of the impact beam 74 may move away from the edge portion 76 along with the step portion 72A and move inward in the vehicle width direction at an early stage of collision,
It is difficult to start shock absorption early in a collision. On the other hand, a stay member 80 is provided at a portion of the impact beam 74 facing the door lock device 78, and the stay member 80 is brought into contact with the door lock device 78 at the time of a collision so that the door lock device 78 has a relatively high strength. Although it may be considered to contact the opening edge portion 82, in this case, the impact absorption is started at an early stage of the collision due to the gap H between the stay member 80 and the door lock device 78, the backlash of the door lock device 78, and the like. Is difficult.

In view of the above facts, it is an object of the present invention to obtain a vehicle side structure capable of starting shock absorption at an early stage of a collision.

[0006]

According to the vehicle side structure of the present invention as set forth in claim 1, the end of the reinforcing member disposed in the door in the vehicle longitudinal direction overlaps the edge of the door opening of the body. In the vehicle side part structure, a door inner panel that constitutes an inner part of the door, and a load transmission member that is installed from the end of the reinforcing member to a portion facing the edge of the door opening of the door inner panel. It is characterized by having.

The vehicle side structure of the present invention according to claim 2 is
A door inner panel that constitutes an inner side of a door in a vehicle side structure in which an end portion of a reinforcing member arranged in the vehicle front-rear direction overlaps an edge portion of a door opening portion of a body, and the door inner panel. And a reinforcing member fixing portion that bulges outward in the vehicle width direction to fix the end portion of the reinforcing member, and an edge portion of the door opening facing the reinforcing member fixing portion is formed outward in the vehicle width direction. And a bulging portion.

According to a third aspect of the present invention, there is provided a vehicle side portion structure,
In the vehicle side structure in which the end of the reinforcing member arranged in the vehicle front-rear direction overlaps the edge of the door opening of the body, at least the end of the reinforcing member is provided with a shock absorbing portion. It has a feature.

According to a fourth aspect of the present invention, there is provided a vehicle side structure including:
In a vehicle side part structure in which an end portion of a reinforcing member disposed inside the door in a vehicle front-rear direction overlaps an edge portion of a door opening portion of a body, the reinforcement member facing a front wall portion of the edge portion of the door opening portion. It is characterized in that an engaging portion capable of engaging with a front wall portion of an edge portion of the door opening portion is provided at a member portion.

[0010]

According to the vehicle side structure of the present invention as set forth in claim 1, the load input to the reinforcing member faces the edge of the door opening of the door inner panel through the load transmitting member from the end of the reinforcing member. The door inner panel contacts the edge of the door opening, and the load is transmitted to the edge of the door opening. Therefore, since the end portion of the reinforcing member comes into contact with the edge portion of the door opening via the load transmission member early in the collision, the shock absorption can be started early in the collision.

Further, in the vehicle side portion structure of the present invention as set forth in claim 2, the load inputted to the reinforcing member is applied to the reinforcing member fixing portion which bulges outward from the end of the reinforcing member from the door inner panel toward the vehicle width direction outside. The reinforcing member fixing portion is transmitted, abuts on the bulging portion formed toward the vehicle width direction outer side at the edge portion of the door opening portion, and transmits the load to the edge portion of the door opening portion. Therefore, since the end portion of the reinforcing member comes into contact with the bulging portion formed toward the outer side in the vehicle width direction at the door opening edge portion through the reinforcing member fixing portion at the early stage of the collision, shock absorption can be started at the early stage of the collision.

Further, in the vehicle side portion structure of the present invention as defined in claim 3, the load inputted to the reinforcing member is transmitted to the impact absorbing portion provided at least at the end portion of the reinforcing member at the initial stage of the collision, and the impact absorbing portion is provided. Since the load is absorbed by the deformation of
Shock absorption can be started early in a collision.

Further, in the vehicle side portion structure of the present invention as set forth in claim 4, even when a load acts on the reinforcing member obliquely with respect to the vehicle width direction, the edge portion of the door opening portion is formed at the initial stage of the collision. The engaging portion provided at the portion of the reinforcing member facing the front wall portion engages with the front wall portion of the edge portion of the door opening portion to reliably transfer the load to the edge portion of the door opening portion. Even when acting diagonally with respect to the vehicle width direction, shock absorption can be started early in a collision.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a vehicle side structure according to the present invention will be described with reference to FIGS.

In the figure, the arrow FR indicates the front direction of the vehicle body, the arrow IN indicates the inner direction of the vehicle body, and the arrow UP indicates the upper direction of the vehicle body.

As shown in FIG. 3, an automobile body 10
A front door opening 12 and a rear door opening 14 are formed at the side portions of the front side door 16, and a front side door 16 is attached to the front door opening 12 by a hinge 18 so as to be openable and closable. A rear side door 20 is attached to the rear door opening 14 by a hinge 22 so as to be openable and closable.

Bumper 2 inside front side door 16
An impact beam 26 as a reinforcing member is arranged at a height substantially the same as that of the vehicle 4 in the longitudinal direction of the vehicle body, and at a height substantially the same as that of the bumper 24 inside the rear side door 20 in the longitudinal direction of the vehicle body. And an impact beam 28 as a reinforcing member is provided.

A corner of the rear lower portion of the rear door opening 14 of the body 10 is formed as a projecting portion 14A which projects toward the inner peripheral side of the opening, and the rear end portion of the impact beam 28 is located outside the projecting portion 14A in the vehicle width direction. 28A is located.

As shown in FIG. 2, the rear side door 20
A bracket 32 is attached to the rear end portion 28A of the impact beam 28 on the door inner panel 30 side.
The base 32A of the bracket 32 is plate-shaped,
A concave portion 32B having a semicircular cross section is formed in the center portion thereof, the concave portion 32B extending toward the front of the vehicle body and recessed inward in the vehicle width direction.
The rear end 28 of the impact beam 28 is placed in the recess 32B.
A is welded.

As shown in FIG. 1, the impact beam 2
8 is adjacent to the door outer panel 33. A rear end portion of the base portion 30A of the door inner panel 30 is bent outward in the vehicle width direction to form a rear wall portion 30B.
A stepped portion 30C and a stepped portion 30D are formed stepwise on the vehicle width direction outer side portion. The rear end edge portion 32C of the bracket 32 is welded to the step portion 30D on the outer side in the vehicle width direction.

As shown in FIG. 2, in the vicinity of the front portion of the base portion 32A of the bracket 32 and the door inner panel 30,
A reinforcement 34 as a load transmission member is installed.

As shown in FIG. 1, the base portion 34A of the reinforcement 34 has a plate shape.
A flange 34B formed toward the front of the vehicle body at an outer edge portion of A in the vehicle width direction is provided with a base portion 32A of the bracket 32 and a concave portion 3A.
It is welded to 2B. In addition, a flange 34 formed inward in the vehicle width direction at an inner edge in the vehicle width direction of the base portion 34A.
C is welded to the rear wall portion 30B of the door inner panel 30 near the vehicle width direction inner end portion.

Therefore, the reinforcement 34 includes the bracket 32 and the door inner panel 30, and the closed cross-section portion 3
5 is formed.

On the inner side in the vehicle width direction of the rear portion of the door inner panel 30, a quarter panel 36 forming the edge of the rear door opening 14 is arranged. The quarter panel 36 includes an edge portion 36A facing the base portion 30A of the door inner panel 30, a rear wall portion 36C facing the rear wall portion 30B of the door inner panel 30, and a step portion 30 of the door inner panel 30.
A step portion 36D that faces D is formed. The wheel house outer 38 is provided on the inner side in the vehicle width direction of the quarter panel 36.
The front end edge portion 38A of the wheel house outer 38 is welded to the tip flange portion 36E of the edge portion 36A of the quarter panel 36. Further, the vehicle width direction outer end of the vertical wall portion 38B of the wheel house outer 38 is bent rearward to form a flange 38C.
C is welded to the back surface of the design surface 36F of the quarter panel 36.

A reinforcement 40 is arranged between the quarter panel 36 and the wheel house outer 38. The opening edge 40 of this reinforcement 40
The tip of A is the flange 38A of the wheel house outer 38.
Front edge portion and the front flange portion 36 of the quarter panel 36
It is welded to E. Reinforcement 40
The outer end portion of the vertical wall portion 40B in the vehicle width direction is bent rearward to form a flange portion 40C.
0C is welded to the flange 38C of the wheel house outer 38. Therefore, the quarter panel 36, the wheel house outer 38, and the reinforcement 40 form a closed cross section 42, and the wheel house outer 38 and the reinforcement 40 form a closed cross section 44. A wheelhouse inner 46 is provided inside the wheelhouse outer 38 in the vehicle width direction, and a flange 46A of the wheelhouse inner 46 is welded to the flange 38A.

Next, the operation of this embodiment will be described.
In the vehicle side structure of the present embodiment, when a bumper of another vehicle comes into contact with the door outer panel 33 of the rear side door 20 and a load acts on the impact beam 28, the load is reinforced from the rear end portion 28A of the impact beam 28. Rear wall portion 30 of the door inner panel 30
B is transmitted to the vicinity of the end portion on the base portion 30A side, and the base portion 30A of the door inner panel 30 is transferred to the edge portion 36 of the quarter panel 36.
A load is applied to the edge portion 36A of the quarter panel 36 by abutting with A.
Communicate to.

Therefore, the impact beam 28 is generated early in the collision.
Since the rear end portion 28A abuts on the edge portion 36A of the quarter panel 36 through the reinforcement 34,
Shock absorption can be started early in a collision.

Further, in this embodiment, the reinforcement 34 forms the closed cross section 35 by the bracket 32 and the door inner panel 30, and the closed cross section 35 abuts the closed cross section 42 of the body. Therefore, the contact portions have high rigidity, and the load can be reliably transmitted to the body.

In this embodiment, the flange 34C of the reinforcement 34 is welded to the rear wall portion 30B of the door inner panel 30 in the vicinity of the end portion on the base portion 30A side, but instead of this, as shown by the imaginary line in FIG. The flange 34C of the reinforcement 34 may be welded to the base portion 30A of the door inner panel 30. Further, instead of the reinforcement 34, as shown in FIG. 4, the rear end portion 28A of the impact beam 28 is connected to the base portion 3 of the door inner panel 30.
It may be extended toward 0A, and this extended portion 28B may be used as a load transmission member.

Further, although the present embodiment has been described with respect to the rear door opening 14 and the rear side door 20, the front door opening 12 and the front side door 16 may have the same structure.

Next, a second embodiment of the vehicle side structure according to the present invention will be described with reference to FIGS.

Regarding the same members as in the first embodiment,
The same reference numerals are given and the description thereof is omitted.

As shown in FIG. 5, the portion 30E of the step portion 30C of the door inner panel 30, which faces the rear end portion 26A of the impact beam 26 of the front side door 16, has a width in the vehicle front-rear direction that gradually decreases downward. The reinforcing member fixing portion 5 that extends in the vehicle width direction and bulges inward in the vehicle width direction is provided at a substantially central portion in the vertical direction of the portion 30E.
0 is formed. The reinforcing member fixing portion 50 is recessed in a semicircular cross section on the outer side in the vehicle width direction, and the rear end portion 26A of the impact beam 26 is welded to this recess via a reinforcing plate 52.

As shown in FIG. 6, the reinforcing plate 52 is
The door inner panel 30 extends from the portion 30E to the rear wall portion 30B of the door inner panel 30, and has an L-shaped cross section. A bulging portion 56 is formed outward in the vehicle width direction at a portion of the center pillar 54 that constitutes a rear edge portion of the front door opening 12 facing the reinforcing member fixing portion 50.

As shown in FIG. 5, the bulging portion 56 is
Along the center pillar 54, it extends from a position facing an upper portion of the reinforcing member fixing portion 50 to a position facing a lower portion of the reinforcing member fixing portion 50.

Next, the operation of this embodiment will be described.
In the vehicle side portion structure of the present embodiment, when the bumper of another vehicle abuts the door outer panel 33 of the front side door 16 and a load acts on the impact beam 26, this load is applied from the rear end portion 26A of the impact beam 26. It is transmitted to the reinforcing plate 52 and the reinforcing member fixing portion 50 of the door inner panel 30, and the reinforcing member fixing portion 50 contacts the bulging portion 56 formed on the center pillar 54 to transmit the load to the center pillar 54.

Therefore, the impact beam 26
Since the rear end portion 26A contacts the bulging portion 56 formed on the center pillar 54 via the reinforcing member fixing portion 50, the shock absorption can be started early in the collision.

In this embodiment, the front door opening 1
2 and the front side door 16 have been described, the rear door opening 14 and the rear side door 20 may have the same configuration.

Next, a third embodiment of the vehicle side structure according to the present invention will be described with reference to FIGS.

Regarding the same members as in the second embodiment,
The same reference numerals are given and the description thereof is omitted.

As shown in FIG. 7, the impact beam 58 of this embodiment is made of a plate material having a wavy shape as viewed in the longitudinal direction. Also, this impact beam 58
Has a wavy end in the longitudinal direction, and the end in the longitudinal direction is
It is a shock absorbing portion 58A. Impact beam 58
On the convex portions 60 that bulge inward in the vehicle width direction, engaging portions 62 project inward in the vehicle width direction at portions that are a predetermined distance from the longitudinal ends of the impact beams 58.

As shown in FIG. 8, the impact beam 5
The shock absorbing portion 58A of No. 8 is welded to the step portion 30C of the door inner panel 30. Further, the cross-sectional shape of the engaging portion 62 viewed from the vehicle body vertical direction is triangular, and the engaging surface 62A of the engaging portion 62 has a rear wall portion 3 of the door inner panel 30.
It faces 0B. Further, a bulging portion 56 is formed outward in the vehicle width direction at a portion of the center pillar 54 facing the impact absorbing portion 58A of the impact beam 58, and a front wall portion 56A of the bulging portion 56 is engaged. It faces the engagement surface 62A of the mating portion 62.

Next, the operation of this embodiment will be described.
In the vehicle side structure of the present embodiment, when the bumper of another vehicle abuts the door outer panel 33 of the front side door 16 and a load acts on the impact beam 58, this load is transferred from the impact absorbing portion 58A of the impact beam 58 to the impact absorbing portion 58A. The load is transmitted to the door inner panel 30, the door inner panel 30 contacts the bulging portion 56 formed on the center pillar 54, and the load is transmitted to the center pillar 54.

Therefore, the impact beam 58 is generated at the early stage of the collision.
The impact absorbing portion 58A is crushed and the load is absorbed thereby, so that the impact absorption can be started early in the collision.

Further, in this embodiment, the impact beam 5
8, the load is diagonally forward with respect to the vehicle width direction (arrow A in FIG. 8).
Direction), the engagement surface 62A of the engagement portion 62 of the impact beam 58 is connected to the front wall portion 56A of the bulging portion 56 of the center pillar 54 via the rear wall portion 30B of the door inner panel 30. The contact is made and the load is surely transmitted to the center pillar 54. Therefore, even if the load acts diagonally with respect to the vehicle width direction, shock absorption can be started early in the collision.

As shown in FIG. 9, the engaging portion 62 may be a member separate from the impact beam 58. Further, in the present embodiment, the impact beam 58 is made of a corrugated plate material, but instead of this, as shown in FIG. 10, a plate-shaped fixed bracket 66 is provided at the end of the pipe-shaped impact beam 64. The fixed bracket 66 may be provided with the wavy shock absorbing portion 66A and the engaging portion 68.

[0047]

According to the vehicle side structure of the first aspect of the present invention, there is provided a vehicle side structure in which an end of a reinforcing member disposed in the door in the vehicle front-rear direction overlaps an edge of a door opening of a body.
Since the structure includes a door inner panel that forms the inner portion of the door and a load transmission member that is installed from the end of the reinforcing member to the portion facing the edge of the door opening of the door inner panel, a collision occurs. It has an excellent effect that shock absorption can be started at an early stage.

According to a second aspect of the present invention, there is provided a vehicle side portion structure in which an end portion of a reinforcing member disposed in the vehicle front-rear direction inside the door overlaps an edge portion of a door opening portion of the body. A door inner panel that forms an inner portion, a reinforcing member fixing portion that bulges outward from the door inner panel in the vehicle width direction and fixes the end portion of the reinforcing member, and an edge of the door opening that faces the reinforcing member fixing portion. Since the portion is provided with the bulging portion formed toward the outer side in the vehicle width direction, there is an excellent effect that shock absorption can be started at an early stage of a collision.

According to a third aspect of the present invention, there is provided a vehicle side portion structure in which an end portion of a reinforcing member disposed in a door front-rear direction overlaps an edge portion of a door opening portion of a body. Since the shock absorbing portion is provided at the end portion of the member, there is an excellent effect that the shock absorbing can be started in the early stage of the collision.

According to a fourth aspect of the present invention, there is provided a vehicle side portion structure in which an end portion of a reinforcing member arranged in the vehicle front-rear direction inside the door overlaps an edge portion of a door opening portion of the body. Since the engaging portion capable of engaging with the front wall portion of the edge portion of the door opening is provided at the portion of the reinforcing member facing the front wall portion of the edge portion of the opening portion, the load is equal to the vehicle width. Even when it acts obliquely with respect to the direction, it has an excellent effect that shock absorption can be started early in a collision.

[Brief description of drawings]

1 is a sectional view taken along line 1-1 of FIG.

FIG. 2 is a perspective view of the vehicle side portion structure of the first embodiment according to the present invention, as seen from the vehicle body obliquely front side.

FIG. 3 is a schematic side view showing a vehicle body to which the vehicle side portion structure of the first embodiment according to the present invention is applied.

FIG. 4 is a sectional view corresponding to FIG. 1, showing a modified example of the vehicle side portion structure of the first embodiment according to the present invention.

FIG. 5 is a perspective view of a vehicle side portion structure of a second embodiment according to the present invention as seen from the vehicle body diagonally front side.

6 is a sectional view taken along line 6-6 of FIG.

FIG. 7 is a perspective view of an impact beam of a vehicle side portion structure according to a third exemplary embodiment of the present invention, as seen obliquely from the inside rear of the vehicle body.

FIG. 8 is a plan sectional view showing a vehicle side portion structure of a third embodiment according to the present invention.

FIG. 9 is a perspective view of a modified example of the impact beam of the vehicle side portion structure according to the third exemplary embodiment of the present invention, which is seen from diagonally behind the inside of the vehicle body.

FIG. 10 is a perspective view of a modified example of the impact beam of the vehicle side portion structure according to the third exemplary embodiment of the present invention, which is seen from diagonally behind the inside of the vehicle body.

FIG. 11 is a plan sectional view showing a vehicle side portion structure of a conventional example.

[Explanation of symbols]

 10 Body 12 Front Door Opening 14 Rear Door Opening 16 Front Side Door 20 Rear Side Door 26 Impact Beam (Reinforcing Member) 26A Rear End 26B Extension (Load Transfer Member) 28 Impact Beam (Reinforcing Member) 28A Rear End 30 Door inner panel 34 Reinforcement (load transmission member) 36 Quarter panel 50 Reinforcement member fixing part 54 Center pillar 56 Swelling part 56A Front wall part 58 Impact beam 58A Impact absorbing part 62 Engaging part 64 Impact beam 66 Fixed blacke 66A Impact absorbing Part 68 Engaging part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Chiaki Kataoka 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor Noriyuki Horigo, 1 Toyota Town, Aichi Prefecture, Toyota Motor Co., Ltd. ( 72) Inventor Yoshihiko Kanamori 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd.

Claims (4)

[Claims] 1. A door inner panel constituting an inner portion of a door in a vehicle side structure in which an end portion of a reinforcing member disposed inside the door in a vehicle front-rear direction overlaps an edge portion of a door opening portion of a body. A vehicle side portion structure, the load transmitting member being provided on a portion of the door inner panel facing an edge portion of the door opening from an end portion of the reinforcing member. 2. A door inner panel that constitutes an inner portion of a door in a vehicle side structure in which an end portion of a reinforcing member disposed inside the door in a vehicle front-rear direction overlaps an edge portion of a door opening portion of a body. , A reinforcing member fixing portion that bulges outward from the door inner panel in the vehicle width direction and fixes the end portion of the reinforcing member, and a vehicle width direction outward at the edge portion of the door opening facing the reinforcing member fixing portion. A vehicle side portion structure, comprising: a bulge portion formed toward the bulge portion. 3. A vehicle side structure in which an end portion of a reinforcing member disposed in a vehicle front-rear direction overlaps an edge portion of a door opening of a body, and a shock absorbing portion is provided at least at the end portion of the reinforcing member. A vehicle side structure comprising: 4. In a vehicle side structure in which an end of a reinforcing member disposed in the vehicle front-rear direction overlaps an edge of a door opening of a body, a front wall portion of the edge of the door opening is provided. The vehicle side portion structure, wherein an engaging portion that is engageable with a front wall portion of an edge portion of the door opening portion is provided at a portion of the reinforcing member facing to.