JPH01182175A - Car body structure for automobile - Google Patents

Abstract

PURPOSE:To facilitate a car body assembling work, by a method wherein the main constituting part of a car body is formed with an upper and a lower car body part, the parts can be joined together by using a flange. CONSTITUTION:A car body 1 is formed such that an upper car body part 3 made of a steel plate is mounted to a lower car body part 2 being an integral molded prod made of synthetic resin. The lower car body part 2 comprises a floor panel part 21, a dash panel part 22, a wheel apron part 23, s side frame part 24, and a cross member 25. The upper car body part 3 is formed such that a plurality of parts made of a steel are joined together by spot welding, and comprises a roof panel 31, a front pillar 32, a center pillar 33, and a rear tender panel 34. A flange part is formed to each of the lower and upper car body parts, and the flange parts are joined together to assemble the car body.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle body structure in which the main part of the vehicle body is constructed by joining an upper part and a lower part.

(Conventional Technological Capabilities and Their Problems) A known car body structure is one in which the main part of the body is divided into an upper part and a lower part, and these parts are joined together. ing. For example, Japanese Patent Laid-Open No. 166776/1983 discloses this type of vehicle body structure. In the vehicle body structure disclosed in this publication, the upper portion and the lower portion of the vehicle body are each made of synthetic resin integrally molded parts, and these are joined together to form the main portion of the vehicle body.

In this type of vehicle body structure, it is desirable that the structure of the joint between the upper and lower vehicle body parts be appropriate so that the assembly work can be facilitated.

In view of this point, an object of the present invention is to provide a vehicle body in which the upper and lower parts of the vehicle body are constructed by joining together the upper and lower parts, and the work of assembling the upper and lower body parts together is facilitated. It lies in realizing the structure.

(Means for solving the problem) In order to achieve the above object, in the vehicle body structure of the present invention, the main constituent parts of the vehicle body are composed of an upper body part and a lower body part. At the same time, if the upper body part is lowered, the lower flange and the upper flange, which are formed respectively to connect the lower body part and the upper body part, will be connected to the lower flange. The structure is such that it can be brought into contact with the object.

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing the assembled state of the automobile body of this example. As shown in FIG. 2, this vehicle body 1 is constructed by assembling an upper vehicle body portion 3 made of a steel plate to a lower vehicle body portion 2 that is integrally molded and made of synthetic resin. The lower body part 2 made of synthetic resin includes a floor panel part 21, a dash panel part 22 attached to the front end of this part, a wheel apron part 23 extending toward the front of the vehicle from both sides of the front of this dash panel part, A front side frame portion 24 attached to the lower end, and a cross member 25 extending between the front ends of these front side frame portions are mounted at 6117. On the other hand, the upper body part 3 is constructed by joining a plurality of steel plate parts by spot welding or the like, and includes a roof panel part 31, a front pillar part 32, and a center pillar part 3.
3. It has parts such as a rear fender panel part 34. These upper and lower body parts are connected to each other at a side sill part 4 and a lower hinge pillar part 5 of the front pillar, which are formed by both of these parts.

The structure of these joint parts will be explained with reference also to FIGS. 4 and 6. First, as shown in FIGS. 3 and 4, in the lower vehicle body part, an inner panel of the side sill part 4 is installed at a position below the door opening 35 on both sides of the floor panel part and continuous with the dash panel part. 41
are integrally formed. This inch panel 41 has a groove-shaped cross section that is open outward in the vehicle width direction.
Vertical flanges 41c and 41d are formed at the edges of the upper wall portion 41a and the lower wall portion 41b, which are located above and below the cross section, by bending these portions vertically at approximately right angles. The side wall portion 41e of this inner panel portion 41 extends along the edge of the floor panel portion to the rear end of the vehicle body, and extends to the formation position of the stepped portion 211 of the floor panel portion.・A lower wall formed at the lower end side of this side wall portion. Portion 41b and vertical flange 4
1d is extended. On the other hand, the earth wall portion 41a extends upward in a curved manner in front of the stepped portion 211.

As shown in FIG. 6, the upper portion of the side wall portion 41e protrudes approximately at right angles to the outside of the vehicle body from the position of the stepped portion 211 of the floor panel portion to the rear of the vehicle body, forming a vertical flange 41f. ing.

On the other hand, the lower portion of the door opening 35 of the upper body portion 2 is connected to an outer panel 42 forming the width sill portion 4. This outer panel 42 has a groove-shaped cross section that is open inward, and the edges of the upper and lower walls 42a and 42b are provided with vertical flanges/1
2c and 42 (1) are formed, and these flanges can be joined to the flanges 41c and 41d of the inner panel 41, respectively.The upper part 142a forms the edge of the door opening, and the side wall 42e and the lower g421) extends along the floor panel 21 to the rear end of the vehicle body, and forms a lower side wall portion and a lower wall portion of the rear fender panel 34, as shown in FIG.

In addition, a vertical flange 4 formed at the edge of this lower wall 42b
2d can come into contact with the lower surface of the vertical flange 41'' of the lower vehicle body portion 2.Furthermore, a reinforcing member 43 is attached to the inside of this portion, and the upper wall portion of this 1jn strong member The inner edge of the upper wall is bent downward at a substantially right angle to form a vertical flange 43a located further inside the vehicle body than the lower vertical flange 42d.A sloped wall portion that slopes from the outer edge of this upper wall toward the inside of the vehicle body. 43b is joined at the top and bottom to the upper and lower vertical flanges 42d of sides 9 & 42e of the side sill, respectively.

Next, the structure of the hinge pillar portion 5 at the lower portion of the front frame of the door opening 35 will be described with reference to FIGS. 7, 8, and 9. On the outer surface of the cowl side portion 25 of the lower vehicle body portion 2 constituting this portion, two beads 25a125b extending in the vertical direction are formed to protrude outward.

On the other hand, the hinge pillar outer panel portion 36 in the side body portion 3 has a groove-shaped cross section that opens toward the inside of the vehicle body, as shown in FIG. In addition, the above two threads of bead 3 [ia
, 36b have dimensions that allow them to be inserted. Flanges 36c and 136d are formed on the inner edges of the front and rear walls, respectively, and are bent approximately at right angles in the front and back of the vehicle body, and these flanges can come into contact with the surface of the lower vehicle body portion. Here, a rectangular cylindrical reinforcing member 37 for reinforcing the door hinge mounting portion as shown in FIG. It is joined on the inside.

A nut for attaching a door hinge is joined to the vehicle body outer wall 37a of this reinforcing member, and a bolt hole is formed. Further, the surface of the opposite inner side wall 37b of the vehicle body can come into contact with the bead surface of the lower vehicle body portion.

In this example in which the upper and lower body parts are configured in this way, after the steel plate parts are welded, the upper body part is assembled and painted, the upper body part is attached to the lower body part 2 as follows. 3 can be assembled. That is, the upper body part 3 is lowered from its upper position relative to the lower body part 2. At this time, the two beads 25a and 25b formed on the cowl side of the lower body part are aligned so as to fit into the hinge pillar outer of the upper body part, and the upper body part 3 is lowered. These beads 25a, 25
After b is fitted into the outer 36, the lower body portion 3 is guided by these beads and lowered. As shown in FIGS. 4 and 6, the lowering of the upper body portion 3 is stopped with both flanges in contact with each other, and then the flanges in contact are joined together. As a joining method, an adhesive may be used, or a combination of this and riveting may be used.

Here, the structure of the connecting portion between the lower body part 2 and the upper body part 3 is such that the upper body part 3 can be lowered from above the lower body part 2 to connect them together, as described above. It is sufficient if it becomes . Therefore, in this example, the cross-sectional structure of the side sill in the lower part of the door opening 35 is as shown in FIG. 4, but instead of this, for example, as shown in FIG. may be attached, and its upper edge portion 61 may be engaged with the upper edge of the side sill inner of the lower vehicle body portion 2 by being lowered from above.

Next, with reference to FIG. 1O and FIG.
The structure of No. 1 will be explained. Step part 22 of this floor panel part
A tunnel portion 222 with a rectangular cross section is formed from the central portion of the vehicle body and protrudes upward toward the front of the vehicle body. On both sides of this tunnel portion 222, reinforcing members 223 and 224 made of steel plates with a grooved cross section are attached to the lower surface of the floor panel 22.
are attached, and the center portions of these reinforcing members in the longitudinal direction of the vehicle body are bent toward the tunnel portion 222 and are located directly below both sides of this tunnel portion. Portions 223a and 224a of the reinforcing member located directly below both sides of these tunnel portions are fixed to the lower surface of the tunnel portion by brackets 225 having a groove-shaped cross section as shown in FIG. On the other hand, the upper surface portion 222a of the tunnel portion 222 has a console box 226 'J''.
The installation is said to be on the surface.

The floor panel 22 constructed in this manner has a structure in which reinforcing members are arranged in an X-shape with respect to the tunnel portion formed in the center, so that its overall rigidity is high.

Next, on the lower surface of the floor panel 22 configured as described above,
An arrangement portion for arranging a brake pipe or the like is formed at a further outer position of one reinforcing member 223. To explain with reference to FIG. 12, two ribs 227 are provided on the outside of the reinforcing member 223 and extend in the longitudinal direction of the vehicle body.
228 is formed. Opposing sides 22 of these ribs
7 a.

A brake pipe 229 is arranged between 228a. Side surface 227b on the other side of each rib.

228b has a protrusion 227C extending in the longitudinal direction of the vehicle body along these side surfaces at its intermediate portion.

228C is formed. On the other hand, a protector 230 having a U-shape as a whole is attached from below these ribs. This protector is made of an elastic member, and both side walls 230a and 230b are formed with depressions 230c and 230d into which the projections 227c and 228c of the rib side walls can be fitted. Therefore, when the protector is pushed in from below, the protrusion fits into the recess and the protector is fixed to the rib. Moreover, the lower wall 230 of this protector 230
e has a cross-sectional shape in which the central portion protrudes upward relative to both side portions.

When the protector is attached to the ribs as described above, the protruding portion 230f presses the brake pipe 229 placed between the ribs against the lower surface of the floor panel, thereby fixing the brake pipe. ing.

In this way, in the floor panel of this example, a pair of ribs are formed by protruding the lower surface of the floor panel, and a pipe for a brake system or the like can be placed in the groove formed by these ribs. Therefore, there is no need to attach separate members for the arrangement of these pipes. Further, since these pipes are protected from flying stones etc. by the pair of ribs, there is no need to separately recite protection measures against such flying stones etc.

(Effects of the Invention) As explained above, in the car body structure of the present invention, the main part of the car body is constructed by joining the lower car body part and the upper car body part, and the lower car body part A flange is configured to connect these two parts so that they can be assembled by lowering the upper body part from above. Therefore, according to the present invention, the effect of assembling these two components can be simplified. In particular, when the upper body part is made up of steel plate panels, the assembly work can be simplified because the upper body part can be assembled and painted, and then the upper body part can be assembled to the lower body part. It becomes extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the main parts of a vehicle body according to an embodiment of the present invention;
Figure 2 is a perspective view showing the upper body part of the main part of the car body in Figure 1, Figure 3 is a perspective view showing the lower part of the main part of the car body in Figure 1, and Figure 4 is a perspective view showing the lower part of the main body part in Figure 1. FIG. 5 is a partial sectional view showing the cross section of the section taken along the line IV-IV of FIG.
6 is a partial sectional view showing another example of the section cut along the line -IV, FIG. 6 is a partial sectional view showing the section taken along the line ■-■ in FIG. 1, and FIG. Figure 8 is a partially enlarged perspective view showing the cowl side part of Figure 1, Figure 9 is a perspective view showing the reinforcing member for the door hinge installation part. , FIG. 10 is a plan view showing the floor panel part of the lower body part of FIG.
1 is a partial sectional view showing a portion taken along the line XI-XI in FIG. 10, and FIG. 12 is a partial sectional view showing a portion taken along the line X11-Xll in FIG. 10. 1. Vehicle body 2. Lower vehicle body portion 21 Floor, Avanel portion 22. Dashboard panel portion 25. Cowl side portion 3.. Upper vehicle body portion 34. Rear wing portion 35. Door opening 4. Side sill portion 41.. Side sill inner 41c, 41d. Flange 42.・Size sill outer 42c, 42d・Flange 5 Hinge pillar part Fig. 4 Fig. 6 Fig. 7 Full J-Ts, - Fig. 10

Claims (1)

[Claims] A main component of an automobile body is constructed by mutually coupling an upper body part and a lower body part, and the lower body part is formed with a lower flange for attaching the upper body part, An automobile body structure, wherein the upper body part is formed with an upper flange that can come into contact with the lower flange by lowering the upper body part from above to the lower body part.