JPH0348951Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a side body of an automobile, and more particularly to a side body of an automobile including a side sill with a jack-up position and surrounding members thereof.

BACKGROUND TECHNOLOGY When jacking up an automobile, a jack mounted on the vehicle is brought into contact with a predetermined jack-up position at the lower side end of the vehicle body to push up the vehicle body. However, at this time, a concentrated load is applied to the jack up position, and in particular,
In vehicles such as vans that are loaded with loads such as luggage, this concentrated load increases further. For this reason, it is necessary to increase the rigidity sufficiently around the jack up position. For example, thick plates are often used for the side sills where the jack up position is set, or in addition to this, long plate-shaped side sill reinforcements are used in the front and rear of the vehicle using both the side sill inner and side sill outer flanges. This is often used to measure the rigidity of the side sill.

Problems that the invention aims to solve By the way, there are side sill reinforcements that are in the form of a long plate, or those that are made by uniformly polymerizing and welding plates of a predetermined width along the inner wall surface of the side sill, but these are relatively simple. There are disadvantages of increased weight and cost. An object of the present invention is to provide a side body of an automobile that can increase the rigidity around the jack up position and is advantageous in terms of weight and cost.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is welded to the side sill at the lower side end of the vehicle body and the vertical inner vertical wall of the side sill on the center side of the vehicle body, and and a reinforcement reinforcement welded to an inner wall surface of the side sill at a position opposite to a set jack up position, the reinforcement reinforcement being welded to a lower wall of the side sill. It is formed by a wall portion and a pair of vertical wall portions that extend upward from both ends of the low wall portion and long in the front-rear direction, and one of the pair of vertical wall portions is attached to the inner vertical wall. It is characterized by being welded.

Function: In the side body of such a vehicle, the upward pushing force applied to the jack-up position is received by the lower wall of the side sill and, via this, by the lower wall of the reinforcement. Then, the force is distributed from one vertical wall of the reinforcement to the inner vertical wall of the side sill and the side member welded thereto, and a portion of the uplift force is received by the other vertical wall, which is more rigid. do.

Embodiment FIG. 1 shows a side body of an automobile as an embodiment of the present invention. This side body is side sill 1
includes a connecting structure around the rear (indicated as a in FIG. 3), and is located at a jack up position P where the jack J shown in FIG.
is set.

The side sill 1 is long in the front-rear direction X, and forms a closed cross section b by joining the side sill inner 2 and the quarter outer panel 3 as the side sill outer (see FIG. 5). The side sill inner 2 has a substantially U-shaped cross section, and the flanges 203 and 204 at the ends of the upper and lower walls 201 and 202 are similarly welded to the flanges 301 and 302 of the quarter outer panel 3 (the fifth
(see figure). The side sill inner 2 has a vertically oriented inner wall 205 on the side facing the center of the vehicle body, and this is joined to the side member 4 which is also long in the longitudinal direction X of the vehicle body. This side member 4 forms a hat-shaped cross section by overlapping the side member reinforcement 5 and the side member front 6 with each other, and one vertical wall 501 of the side member reinforcement 5 is located inside the side sill inner side. It is welded to the vertical wall 205.

In the side sill inner 2, the vertical wall 701 portion of the trailing arm bracket side 7 having an L-shaped cross section is welded to the inner vertical wall 205 at the cross-sectional A-A position. Similarly, a trailing arm bracket 8 having a substantially L-shaped cross section is disposed below the side member 4 at the cross-sectional position AA. This trailing arm bracket 8 has its lower wall 802 connected to the lower wall 702 of the trailing arm bracket side 7.
The vertical wall 801 is stacked on the vertical wall 601 of the side member front 6, and they are welded to each other. Both trailing arm brackets 7 and 8 are
At the cross-section B-B position, which is the rear position on the right side in FIG. . The trailing arm reinforcement 9 is used to attach a pivot shaft of a trailing arm that supports a rear wheel (not shown), and has a downward hat-shaped cross section. A vertical wall 901 on the vehicle side end side (left side in FIG. 6) of the trailing arm reinforcement 9 connects to the inner vertical wall 2 of the side sill inner through the vertical wall 701 on the trailing arm bracket side.
05 and these are welded together. The other vertical wall 902 on the center side of the vehicle body is welded to the lower part of the vertical wall 801 of the trailing arm bracket. The lower end of one vertical wall 901 of the trailing arm reinforcement is bent and formed as a flange 903, which is connected to the lower wall 20 of the side sill inner.
2 and welded. Note that the center upper wall 904 of the trailing arm reinforcement 9
are superimposed on both lower walls 502, 602 of the side member reinforcement 5 and the side member front 6, and are welded to each other. Note that the reference numeral 11 in FIG. 5 indicates a floor material.

A reinforcement reinforcement 10 having a U-shaped cross section (see FIGS. 5 and 8) is welded to the inner wall surface of the side sill inner 2 having the circumferential members joined together in this way, which faces the jack up position P. As shown in FIGS. 1 and 7, the reinforcement reinforcement 10 has a low wall portion 10 that overlaps the lower wall 202 of the side sill inner.
1 and upward from both ends of this low wall portion 101,
and a pair of vertical wall portions 1 extending long in the front-rear direction
02, 103. This vertical wall portion 102 on the inner vehicle side end is connected to the lower flange 2 of the side sill inner.
04 and is formed long in the front-rear direction. The other vertical wall portion 103 on the center side of the vehicle body is formed to be long in the front-rear direction and overlap the lower side of the inner vertical wall 205 of the side sill inner. Note that the concave portion 104 of the vertical wall portion 103 shown in FIG. 8 is formed to strengthen the rigidity of the vertical wall portion against upward loads. Note that a bead C is formed on the low wall portion 101 at the center of the jack up position P and on the lower wall 202 of the side sill inner that overlaps this portion, thereby indicating the jack up position P and increasing the rigidity. I'm planning. Furthermore, the rear end of the low wall portion 101 is connected to the flange 903 of the trailing arm reinforcement via the lower wall 202.
Welded against.

Jack J to such a jack up position P
When the bolts are brought into contact with each other and jacked up, an upward pushing force as a reaction force of the vehicle body load is applied from the lower wall 202 to the lower wall portion 101 of the reinforcement. In this case, the upward pushing force is directly transmitted from the lower wall 202 to the inner vertical wall 205 and the quarter outer panel 3, and is also transmitted from the low wall part 101 of the reinforcement to the pair of vertical walls 102 and 103, and further to one side. The vertical wall 205 inside the vertical wall portion 103 of
is transmitted to the vertical wall 501 of the side member reinforcement, the vertical wall 701 of the trailing arm bracket side, and the lower flange 603 of the side member front 6. Furthermore, by welding the rear end of the low wall portion 101 of the reinforcement reinforcement to the flange 903 of the trailing arm reinforcement, which has a large plate thickness, through the lower wall 202, the uplift force is not transmitted to the trailer even through this path. It is transmitted to the ring arm reinforcement 9 side. Furthermore,
One vertical wall portion 102 of the reinforcement has a shape that is bent and extended from the lower wall portion 101, so it has rigidity against upward pushing force, and such upward pushing force is absorbed by the flange 204 and flange 302. Working together is helpful. In addition, ○† in the figure

Claims (1)

[Scope of utility model registration request] A side sill at the lower side end of the vehicle body, a side member welded to a vertical inner wall of the side sill on the center side of the vehicle body and extending in the longitudinal direction of the vehicle body, and a jack up position set on the inner wall surface of the side sill. a reinforcement reinforcement welded to opposing positions, the reinforcement reinforcement having a lower wall portion welded to the lower wall of the side sill;
A pair of vertical walls extend upward and longitudinally from both ends of the low wall, and one of the pair of vertical walls is welded to the inner vertical wall. Side body.