JPH08216922A - Reinforcing structure of lower part of pillar for vehicle - Google Patents

Abstract

PURPOSE: To improve the body strength at the time of side crush by forming a belt anchor reinforcement part, fixed to an inner pillar and having a junction with a seat belt arranged, and a bulk head part, continuous between a pillar outer reinforcement and an inner pillar, integrally. CONSTITUTION: For a side bumper for a vehicle, an outer pillar 1 and an inner pillar extending longitudinally are counterposed at the side of a car body floor, and a pillar outer reinforcement 3 is arranged close to the outer pillar 1. In this case, this is provided with a reinforcing member 4 where a bulk head part 46 inserted fast between the inner pillar 2 and the pillar outer reinforcement 3 and a belt anchor reinforcement 47 are united. This reinforcing member 4 consists of a box-shaped member 40, and constitutes a bulk head part 46 together with its bottom 45, and the face 44 where a circular projection 441 is made is fixed to the inner pillar 2, and it is made a belt anchor reinforcement 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt anchoring hose portion fixed to an inner pillar and provided with a joint portion with a seat belt, and a bulkhead for connecting a pillar outerline hose and the inner pillar. The present invention relates to a reinforcing structure of a vehicle pillar lower part, which is integrally formed.

[0002]

2. Description of the Related Art A first conventional vehicle pillar reinforcement structure (actual flat 1-96380) is a belt anchory having a joint portion C with a seat belt as shown in FIGS. The hose B was fixed to the inner pillar I and the rocker inner K by spot welding to secure the belt anchor strength.

Further, in the conventional second reinforcing structure for the lower part of the pillar for a vehicle, as shown in FIG. 6, a belt anchorage hose B having a joint C with a seat belt is provided, an inner pillar I and a rocker inner K. The vehicle is provided with a bulkhead H which is fixed to the outer pillar O by being spot-welded to secure the belt anchor strength, and is interposed between the pillar outerline hose R disposed near the outer pillar O and the inner pillar I. It was to reinforce the body at the time of a side collision.

[0004]

In the above-described first conventional vehicle pillar lower reinforcing structure, the belt anchorage hose B is fixed to the inner pillar I by spot welding to secure the belt anchor strength. However, since the pillar outerline hose R and the inner pillar I are not connected to each other, there is a problem that they are not effective in reinforcing the body at the time of a collision with the side surface of the vehicle.

The above-mentioned conventional second reinforcing structure for the lower part of the vehicle pillar is different from the belt anchoring hose B as described above.
A bulkhead H is provided between the inner pillar I and a pillar outerline hose R arranged close to the outer pillar O to reinforce the body at the time of a collision with the side surface of the vehicle. As shown in FIG. 6, since the belt anchorage hose B is spot welded to the inner pillar I by a spot gun, the bulkhead H is spot welded to the pillar outerline hose R. , Inner pillar I
However, there is a problem in that the body is not necessarily reinforced at the time of a collision with the side surface of the vehicle because it is not fixed but only abutted.

Therefore, the inventor of the present invention has a belt anchoring hose portion fixed to the inner pillar and provided with a joint portion with the seat belt, and a bulk head portion connecting the pillar outerline hose and the inner pillar. , Is integrally formed, focusing on the technical idea of the present invention of effectively transmitting the collision input to the inner pillar of the thick plate, further research and development, while securing the belt anchor strength,
The present invention has been achieved which achieves the object of suppressing the cost and increasing the strength of the body at the time of collision on the side surface of the vehicle.

[0007]

In the reinforcing structure of the vehicle pillar lower portion of the present invention (the first invention according to claim 1), the outer pillar extending in the front-rear direction and the inner pillar are opposed to each other on the side portion of the vehicle body floor. In a reinforcing structure of a lower portion of a vehicle pillar in which a pillar outer-line hose is arranged in the vicinity of the outer pillar, a belt anchory fixed to the inner pillar and a joint portion with a seat belt is arranged. The hose portion and the bulkhead portion connecting the pillar outerline hose and the inner pillar are integrally formed.

In the reinforcing structure of the vehicle pillar lower portion of the present invention (the second invention according to claim 2), in the first invention, the belt anchorage hose portion and the bulkhead portion are formed as one member. There is something.

The reinforcing structure of the lower part of the vehicle pillar of the present invention (the third invention according to claim 3) is the second invention, wherein the one member is a box-shaped member, and three standing surfaces are provided. The bottom head that is fixed to the pillar outerline hose and connects the three surfaces forms the bulkhead portion, and one surface is fixed to the inner pillar to form the belt anchorage hose portion.

[0010]

In the reinforcing structure for the lower portion of the vehicle pillar of the first invention having the above structure, the belt anchor strength is secured by the belt anchoring hose portion fixed to the inner pillar and provided with the joint portion with the seat belt. The bulkhead portion that secures and connects between the pillar outerline hose and the inner pillar integrally formed with the belt anchorage hose portion provides a collision input to the vehicle side surface to the inner pillar. It is something to convey.

The reinforcing structure of the lower portion of the vehicle pillar according to the second aspect of the present invention having the above-mentioned structure is characterized by the belt anchorage hose portion of the one member fixed to the inner pillar and provided with the joint portion with the seat belt. While securing the belt anchor strength, the bulkhead portion of the one member that is integrally formed with the belt anchorage hose portion and connects the pillar outerline hose and the inner pillar to the vehicle side surface Is transmitted to the inner pillar.

In the reinforcing structure for the lower portion of the vehicle pillar of the third invention having the above structure, the belt constituted by the one surface of the box-shaped member fixed to the inner pillar and provided with the joint portion with the seat belt is provided. The anchor line hose ensures the belt anchor strength and
Collision input to the vehicle side surface is achieved by the bulkhead portion formed by the bottom surface connecting between the inner pillar and the three surfaces integrally formed with the one surface and fixed to the pillar outerline hose. It effectively transmits to the inner pillar.

[0013]

The reinforcing structure for the lower portion of the vehicle pillar of the first aspect of the present invention, which has the above-described operation, is constituted by the belt ancarine hose portion and the bulkhead portion formed integrally.
Since the collision input to the side surface of the vehicle is transmitted to the inner pillar, it is possible to secure the belt anchor strength while suppressing the cost and enhancing the strength of the body at the time of the collision to the side surface of the vehicle.

In the reinforcing structure of the vehicle pillar lower portion of the second invention having the above-mentioned action, the collision input to the side surface of the vehicle is performed by the one member integrally formed with the belt anchorage hose portion and the bulkhead portion. Is transmitted to the inner pillars, the belt anchor strength is secured, the cost is suppressed, and the strength of the body at the time of a collision with the side surface of the vehicle is effectively increased.

In the reinforcing structure of the lower portion of the vehicle pillar according to the third aspect of the present invention, the box-shaped member integrally formed with the belt anchorage hose portion and the bulkhead portion collides with the side surface of the vehicle. Since the input is transmitted to the inner pillar, there is an effect that the belt anchor strength is secured, the cost is suppressed, and the strength of the body at the time of a collision with the side surface of the vehicle is more effectively increased.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

In the vehicle bumper of the embodiment, as shown in FIGS. 1 to 3, an outer pillar 1 and an inner pillar 2 extending in the front-rear direction are arranged to face each other on a side portion of a vehicle body floor, and the outer pillar 1 is provided with the outer pillar 1. In the reinforcing structure of the vehicle pillar lower part in which the pillar outerline hose 3 is arranged in close proximity, the pillar outer structure hose is constituted by a box-shaped member 40, and is inserted and fixed between the inner pillar 2 and the pillar outerline hose. The bulkhead portion 46 and the inner pillar 2 are fixed to the belt anchorage hose portion 4
The reinforcing member 4 on which 7 and 7 are formed is integrally inserted and fixed.

The outer pillar 1 is disposed orthogonal to a front-rear direction member 10 extending in the front-rear direction of a quarter-circle vehicle having a stepped horizontal portion 101 as shown in FIGS. The vertical member 11 has a U-shaped cross section and extends in the vertical direction, and is formed integrally with the front-rear member 10.

The inner pillar 2 is composed of a thick plate member 20 extending in the front-rear direction of the vehicle, and a spot gun having a circular protrusion for fixing the belt anchorage hose portion formed on the lower portion thereof. A rectangular hole 21 for use is formed.

Inside the inner pillar 2, as shown in FIGS. 1 to 3, it is disposed orthogonally to a longitudinal member 50 having a U-shaped cross section and extending in the longitudinal direction of the vehicle. A rocker inner 5 that is formed of a vertically extending member 51 having a U-shaped cross section and that is integrally formed with the front-rear direction member 50 is provided.

As shown in FIGS. 1 to 3, the outer pillar 1, the inner pillar 2, and the rocker inner 5 are integrally welded by spot welding at upper and lower and front and rear belt-shaped flange portions.

A pillar outerline hose 3 constituted by a vertically extending member 30 having a U-shaped cross section as shown in FIGS. 1 to 3 is located inside the vertically extending member 11 of the outer pillar 1. Are arranged.

A reinforcing member 4 constituted by a box-shaped member 40 is integrally inserted between the pillar outer hose 3 and the inner pillar 2, as shown in FIGS.

In the box-shaped member 40 constituting the reinforcing member 4, the three standing surfaces 41, 42 and 43 are fixed to the inner surface of the pillar outerline hose 3 and the bottom surface 45 connecting the three surfaces. In addition to constituting the bulkhead portion 46, the one surface 44 having a circular protrusion 441 formed at the center thereof is fixed to the inner pillar 2 and constitutes the belt anchorage hose portion 47.

The three surfaces 41, 42 and 43 which are set upright are
As shown in FIG. 1 to FIG. 3, it is configured by a rectangular flat surface, and is fixed in advance to the inner surface of the pillar outerline hose 3 by spot welding, and is inserted and fixed in the outer pillar 1.

A bolt forming a joint with a seat belt (not shown) is arranged at the top of a circular protrusion 441 formed in the center of the one surface 44 of the belt anchorage hose 47. Set up.

The rocker inner 5 and the rocker inner 5 are spot-welded at two places at the center of the lower rectangular portion of the one surface 44 and at two places in the vertical direction between the joint and the lower rectangular portion. It is fixed to the outer surface of the inner pillar 2, and the pillar outerline hose 3 and the inner pillar 2 are integrally connected.

The reinforcing structure for the lower portion of the vehicle pillar of the present embodiment having the above structure is fixed to the inner pillar 2 by four-point spot welding, and spot-welded to the three inner surfaces of the pillar outer-line hose 3. By receiving a force acting on the seat belt by the belt anchorage hose portion 47 in which the joint portion with the seat belt formed by the one surface 44 of the reinforcing member 4 of the box-shaped member 40 is arranged. , It is to secure the belt anchor strength.

Further, the three surfaces 41, 4 of the reinforcing member 4 formed integrally with the one surface 44 and fixed to the pillar outer line hose 3 by spot welding, respectively.
The collision input to the vehicle side surface is transmitted to the inner pillar 2 and the rocker inner 5 by the bulkhead portion 46 configured by the bottom surface 45 that connects between the inner pillars 2 and 43 and the inner pillar 2. .

The reinforcing structure for the lower portion of the vehicle pillar of the present embodiment which achieves the above-mentioned operation is the pillar outerline hose 3 described above.
Reinforcing member 4 fixed to each by spot welding
With the bulkhead portion 46 configured by the bottom surface 45 that connects the three surfaces 41, 42, and 43 of the vehicle and the inner pillar 2, the collision input to the vehicle side surface is transmitted to the inner pillar 2 and the rocker inner 5. Since it is transmitted to the inner pillar 2 and the rocker inner 5, it is possible to effectively transmit the collision input at the time of the collision to the side surface of the vehicle.

Further, in the reinforcing structure of the lower part of the vehicle pillar of the present embodiment, the force acting on the seat belt is fixed to the inner pillar 2 by spot welding of four points from the belt anchorage hose portion 47 to the pillar. Since it is transmitted to the pillar outer-line hose 3 via the reinforcing member 4 of the box-shaped member 40 spot-welded to the three inner surfaces of the outer-line hose 3, sufficient belt anchor strength is ensured and reliability is improved. There is an effect of improving.

Further, the bulkhead portion 46 and the belt anchorage hose portion 47 are connected to the box-shaped member 4.
Since the reinforcing member 4 is formed of 0, the strength is increased by the so-called shell structure and the structure is formed by one member (part), so that the die cost and the assembly man-hour can be reduced. Play.

The embodiments described above are merely examples for the purpose of explanation, and the present invention is not limited to them. Those skilled in the art will recognize from the claims, the detailed description of the invention and the description of the drawings. Modifications and additions can be made without departing from the technical idea of the present invention.

In the above-mentioned embodiment, an example in which the reinforcing member is constituted by a box-shaped member as shown in FIGS. 1 to 3 has been described, but the present invention is not limited to this. Other box members with different length, width, and height as required, and a sufficient contact area 3
A three-dimensional member, a shell member having a three-dimensional curved surface, or the like can be used.

[Brief description of drawings]

FIG. 1 is a perspective view showing a reinforcing structure of a lower portion of a vehicle pillar according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG. 1 showing the structure of the present embodiment.

FIG. 3 is a perspective view showing a reinforcing member having a box-type structure according to this embodiment.

FIG. 4 is a perspective view showing a first conventional structure.

FIG. 5 is a sectional view taken along line BB of FIG. 4 showing a first conventional structure.

FIG. 6 is a cross-sectional view showing a second conventional structure.

[Explanation of symbols]

 1 Outer pillar 2 Inner pillar 3 Pillar Outer line hose 4 Reinforcing member 40 Box-shaped member 46 Bulkhead part 47 Belt Ankaline hose part

Claims (3)

[Claims] 1. A lower part of a vehicle pillar in which an outer pillar and an inner pillar extending in the front-rear direction are arranged to face each other on a side portion of a vehicle body floor, and a pillar outerline hose is arranged in the vicinity of the outer pillar. In the reinforcing structure, a belt anchoring hose portion fixed to the inner pillar and provided with a joint portion with a seat belt, and a bulkhead portion connecting the pillar outerline hose and the inner pillar are integrally formed. Reinforcement structure for the lower part of the vehicle pillar, which is characterized in that 2. The reinforcing structure for a vehicle pillar lower portion according to claim 1, wherein the belt anchorage hose portion and the bulkhead portion are formed as one member. 3. The pillar member according to claim 2, wherein the one member is composed of a box-shaped member, and the three erected surfaces are fixed to the pillar outer line hose.
A reinforcing structure for a lower portion of a vehicle pillar, wherein the bulkhead portion is constituted by a bottom surface connecting the surfaces, and one surface is fixed to an inner pillar to constitute the belt anchorage hose portion.