JPH01197180A - Vehicle body structure - Google Patents

Abstract

PURPOSE:To prevent intrusion of water or dusts or the like into a sole bar by mounting a member for closing the end of sole bar at an end on the side of sole bar of mud guard covering the upper side of a tire, and enabling the closure of the end of sole bar at the time of mounting the mud guard. CONSTITUTION:In various frame members composing an automobile body 1 having rectangular cross section structure formed by extrusion with aluminum alloy and the like, a mud guard 15 covering the upper side of each wheel is fixed, at its side member 15b, on a front lower frame (not shown) by means of bolts. The upper face 15d is fixed at a low upper frame 4 by means of a bolt, and a cover 15a of a mud cover 15 is fixed to a front end 3a of a sole bar 3. In this case, a closing member 16 for closing the front end 3a at a rear end 15c of a mud cover 15, and at the time of mounting a mud cover 15, the closing member is adapted to be fitted in the front end 3a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a single-curved vehicle body structure in which various frame members constituting the basic framework of the vehicle body are made of light alloy.

[Conventional technology] In order to significantly reduce the weight of automobiles, various frame members and floor panels that make up the basic framework of the vehicle body have been replaced with conventional steel materials such as pressed steel plates. For example, it is being considered that it may be made of a light alloy such as an aluminum alloy.

In this case, in order to compensate for the decrease in the material strength of each member due to the use of lighter alloys and to ensure the necessary strength and rigidity, the frame member is generally formed into a hollow shape by extrusion molding, and its cross section is It has a closed cross-sectional structure.

However, when the frame member is hollow,
There is a problem in that while the vehicle is running, moisture such as raindrops, dust, etc. may enter this hollow portion and cause corrosion of the frame member.

For this reason, conventionally, a flat plate-shaped closing member made of a light alloy of the same material as the frame member is applied to the end of the frame member, and this closing member is welded to the end of the frame member all around. By doing so, the end portion is closed to prevent moisture, dust, etc. from entering the hollow portion of the frame member.

Furthermore, even in the case of a normal vehicle whose body is made of steel, the outer member and the inner member have a closed cross-sectional structure, as shown in Japanese Utility Model Application Publication No. 59-122973, for example. When the end of the frame member (sidesol) is open, the end is generally closed by welding a flat steel plate member.

[Problems to be Solved by the Invention] However, as described above, when the ends of the frame member are closed by welding the entire circumference of the closing member, this welding is time-consuming, and after welding,
In order to prevent interference with other members, it is necessary to remove the welded excess portion using a grinder or the like, which is a problem in that it takes a lot of man-hours.

By the way, a mat guard is usually attached to the part of the car body where tires are mounted to prevent mud from splashing while the car is running. In the case of automobiles whose frame parts, such as side soles, are made of light alloy for the purpose of weight reduction, the mat guard is made of synthetic resin, for example, and is integrally formed in a shape that covers the top of the tire, and is placed on the side of the floor panel. It is disposed at least one of the front and rear sides of the side sol located at the end, and is attached to the vehicle body by having its inner side portion and upper surface portion in the vehicle width direction fixed to a frame member.

However, if the above-mentioned mat guard is fixed in only two places, the inside part and the top part, as in the past, the lower part of the outside part of the mat guard is not fixed, which causes vibrations while the vehicle is running. There have been problems in that it is easy to scratch, is harsh on the ears, and has an adverse effect on the durability of the mat guard.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and is capable of closing the opening end of the side sol in an automobile whose frame member is made of a light alloy, and at the same time,
It is an object of the present invention to provide an automobile body structure that can prevent the generation of vibration of the mat guard.

[Means for Solving the Problems] Therefore, the present invention provides an automobile in which a frame member constituting the frame of the vehicle body is formed of a light alloy, and is arranged at a side end of a floor panel and has a hollow portion. A side sol extruded and a mat guard disposed at least one of the front and rear sides of the side sol to cover the top of the tire are provided, and the end of the mat guard on the side sol side includes: A closed part is formed to close the end of the side sol.

[Effects of the Invention] According to the present invention, since a closing portion that closes the end of the side sol is formed at the end of the mat guard on the side sol side,
By assembling the mat guard to the vehicle body, the ends of the side sol can be closed, and moisture, dust, etc. can be prevented from entering the hollow part of the side sol.

At the same time, the edge of the mat guard on the side sol side is fixed to the side sol, making it more secure than conventional mat guards that were fixed at only two locations: the inside part and the top surface in the vehicle width direction. The number of points can be increased, and vibration of the mat guard can be prevented from occurring while the vehicle is running.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

As shown in FIG. 4, in the vehicle body 1 according to the present embodiment, for the purpose of weight reduction, various frame members forming the basic framework, for example, at both ends in the vehicle width direction, the vehicle body l A front upper frame 4, a front lower frame 5, a rear belt line reinforcement mentro, left and right front pillars 7 extending upward in the front part of the vehicle, Front header 1, upper and lower cross members 9 and 10 extending in the width direction, respectively.
, extending upward in the nQ part of the side sol 3.3,
Said side sol 3.3 and said front upper frame 4.
The pair of left and right hinge pillars 11 connecting the vehicle 4 and the floor panel 2 forming the floor surface of the passenger compartment are made of a light alloy such as an aluminum alloy.

Each of the frame members 3 to 11 is formed into a hollow shape by extrusion molding, and has a closed cross-sectional structure.

Further, the floor panel 2 is formed of a so-called honeycomb core material in which a core material having a honeycomb structure is disposed between upper and lower flat plates.

Each of the frame members 3 to 11 and the floor panel 2 are
As described above, each member has a closed cross-section structure and an ink structure, and by appropriately setting the various dimensions and thicknesses, the strength and rigidity required for each member are ensured.

In addition, as shown by the two-dot chain line in FIG. 4, the vehicle body 1 is provided with a tire (not shown) above the tires (not shown) on the side surface of the front lower frame 5 to prevent mud from splashing while the vehicle is running. A covering mat guard 15 is attached. The mat guard 15 is located under the gravity of the side sol 3 arranged at the side end of the floor panel 2, and the hollow part of the side sol 3 is open to the outside at its front end 3a.

In addition, in FIG. 4 above, the mat guard 15 is shown only for the left front wheel portion of the vehicle body l (see the two-dot chain line in the same figure).
Although not specifically shown, similar mat guards are also attached to the right front wheel and left and right rear wheels.

These mat guards have the same configuration and function the same, just by being symmetrical from side to side or from front to back.
To avoid duplication, only the mat guard 15 on the left front wheel section 1 will be described below.

As shown in FIGS. 1 and 2, the mat guard 15 is formed into a substantially semicircular curve in the front-rear direction, and includes a cover portion 15a that covers the upper side of the tire (not shown), and a side surface portion. In this embodiment, the cover portion 15a and the flat side surface portion +5b located inside the cover portion 15a are integrally formed of, for example, synthetic resin.

As shown in FIG. 3, the mat guard 15 has a side surface +5b fixed to the front lower frame 5 by a bolt member I3, and an upper surface 15d.
However, using the bolt member 14, the front upper frame 4
The front fender panel 12 is fixed to the curved portion of the vehicle body l and is locked by the lower end portion 12a of the front fender panel 12 that covers the upper side surface portion of the curved portion of the vehicle body l. The attachment of the mat guard I5 to the lower end 12a of the front fender panel 12 is as follows:
Although not specifically shown, this is accomplished by, for example, a well-known clip-shaped connecting member. Furthermore, in this embodiment, as will be explained in detail later, the rear end 15c of the cover part 15a of the mat guard 15 is attached to the front end 3a of the side sol 3, and thereby the outer part in the vehicle width direction is It is also fixed at the bottom.

By the way, in this embodiment, a closing part I6 is provided at the rear end part 15c of the cover part 15a of the mat guard 15 to close the front end part 3a of the side sol 3 located at the rear of the mat guard 15.
is provided.

Hereinafter, the closure portion 16 will be explained.

As shown in FIGS. 1 and 2, the rear end of the cover portion 15a has a portion corresponding to the front end of the side sol 3 located behind the mat guard 15, which corresponds to the cross-sectional shape of the side sol 3. A closing portion I6 having a rectangular recess is provided integrally with the cover portion 15a. The closing portion 16 includes four side plates 16a, 16b, 1Gc, and 4 side plates 16a, 16b, 1Gc, and 16a, which project rearward from the rear end 15c of the cover portion 15a.
l 6d is formed in a concave shape with the rear end 15c as the bottom surface, and when the mat guard 15 is attached to the vehicle body 1, the inner peripheral part of the closing part 16 is the outer peripheral part of the front end 3a of the side sol 3. It is designed to fit into the section.

The closing portion 16 includes, for example, mounting holes in the outer side plate 16a and the lower side plate 16b. 7. ..., +7 is provided, and the above-mentioned mounting hole 1 of the front end portion 3a of the side sol 3 is provided.
7. . . , a bolt member 19. is attached to the part corresponding to +7.
..., threaded portion 18 for screwing 19, ...
+8 is provided, and the closing portion 16 is fitted into the front end portion 3a of the side sol 3, and the mounting hole +7. ...
, +7 and threaded part +8. ..., 18, and align the bolt members 19. ..., 19, the front end 3a of the side sol 3 is closed by the closing part 16, and the rear end 15c of the cover part 15a of the mat guard 15 is connected to the front end of the side sol 3 through the closing part 16. It can be fixed to the section 3a.

That is, as shown in Fig. 3, the above-mentioned mat guard! 5
The side part 15b is fixed to the front lower frame 5 at the inner part in the vehicle width direction, and the cover part 1 is fixed at the upper part.
The upper surface part 5a +5d is engaged with the front fender panel 12, and furthermore, the rear end part 15c of the cover part I5a is fixed to the side sole 3 at the lower part of the outer part in the vehicle width direction.

As described above, according to this embodiment, the rear end 15c (end on the side sol 3 side) of the mat guard 15 closes the front end 3a (end on the side of the mat guard 15) of the side sol 3. Since the closing part 16 is formed, by assembling the mat guard I5 to the vehicle body 1, the front end 3a of the side sol 3 can be closed, thereby preventing moisture, dust, etc. from entering the hollow part of the side sol 3. can be prevented. At the same time, the mat guard 15
, the rear end 15c of the cover part 15a is the side sol 3.
Since the mat guard 15 is fixed to the mat guard 15 while the vehicle is running, the number of fixing points can be increased compared to the conventional case where the mat guard 15 is fixed only to the inside part +5b and the upper surface part 15d in the vehicle width direction. This makes it possible to prevent the occurrence of vibrations.

[Brief explanation of the drawing]

All drawings are for detailed explanation of the present invention.
Figure 1 is a front view showing the side sol and mat guard assembled, Figure 2 is a perspective view showing the side sol and mat guard before they are assembled, and Figure 3 is the assembled side sol and mat guard. For this purpose, FIG. 4 is a cross-sectional view taken along the line X--X, and FIG. 4 is a perspective view of the entire vehicle body. ! ... Vehicle body, 2... Floor panel, 3... Side sol, 3a... Front end of side sol, 15... Mat guard, 15c... Rear end of mat guard, 16.
...Occluded area.

Claims (1)

[Claims] (1) An automobile body structure in which a frame member constituting the frame of the vehicle body is formed of a light alloy, and a side sol arranged at a side end of a floor panel and extruded with a hollow portion; A mat guard is provided on at least one of the front and rear sides of the side sol to cover the top of the tire, and the end of the mat guard on the side sol side is provided with a closing part that closes off the end of the side sol. An automobile body structure characterized in that: