JPH038539Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a roof reinforcement mounting structure for an automobile, and in particular, a reinforcing groove formed in both ends in the longitudinal direction and a reinforcing groove formed in the end in the width direction. roof reinforcement with a flange,
The present invention relates to an improvement in a roof reinforcement mounting structure for an automobile, in which an end of the roof reinforcement is fixed to a roof side rail of a body and is mounted inside a roof panel of a body in the vehicle width direction.

[Conventional technology]

Conventionally, reinforcements have been used on automobile roofs to increase the rigidity of the roof.

Such a roof reinforcement mounting structure is disclosed in, for example, Japanese Utility Model Application No. 55-46097 and Japanese Utility Model Application No. 55-160976, as shown in FIGS. 4 to 6.
As disclosed in the above publication, a main body part 2 includes a reinforcing groove 1 formed in the longitudinal direction, and both end parts are plate-shaped by gradually decreasing the depth of the reinforcing groove 1 toward the edges in the longitudinal direction. 3, by attaching both ends 3 to the roof side rail 5 of the body with tapping screws 6 or spot welds 7, etc.,
The rigidity of the roof panel 8 is improved.

[Problem that the invention attempts to solve]

However, such a conventional roof reinforcement mounting structure is fixed to the roof side rail 5 of the body through both ends 3, which have a single plate shape and have low rigidity in cross section. There is a problem in that the mounting rigidity is lower than that of the main body part 2 whose cross-sectional rigidity is improved by the reinforcing grooves 1 and the like.

That is, the conventional roof reinforcement 4 is
Since the reinforcement is welded to the roof side rail 5 of the body only by both ends 3, which are made into a single plate, the cross-sectional rigidity is improved by reinforcing grooves 1, etc. in areas other than both ends 3. 4 cannot be used effectively, and therefore the reinforcement effect of the roof panel 8 cannot be sufficiently obtained.

On the other hand, as disclosed in Japanese Utility Model Application Publication No. 57-109073, from the viewpoint of forming roof panel reinforcement quickly and easily, a flange that protrudes toward the indoor side is installed at the top of the roof side rail. A roof reinforcement mounting structure has been proposed in which an end portion of a roof reinforcement formed into a hat-shaped cross section is fitted into a recess formed in the flange and fixed thereto.

However, even with the above proposal, there is a problem that sufficient joint rigidity cannot be obtained because the reinforcing grooves at the ends of the roof reinforcement remain open. In particular, when the depth of the reinforcing groove at the end of the roof reinforcement is gradually increased toward the longitudinal edge, the opening cross-sectional area becomes large and there is a problem that sufficient bonding rigidity cannot be obtained. has.

[Purpose of invention]

This invention has been made in view of the above-mentioned conventional problems, and is an automobile roof reinforcement that can improve the rigidity of the roof by improving the coupling rigidity of the roof reinforcement to the roof side rail. The purpose is to provide a mounting structure for

[Means for solving problems]

This invention includes a roof reinforcement that includes reinforcing grooves extending to both ends in the longitudinal direction and flanges formed at the ends in the width direction, and attaches the ends of the roof reinforcement to the roof side rails of the body. In the automobile roof reinforcement mounting structure in which the roof reinforcement is mounted on the inside of the roof panel of the body in the vehicle width direction, a mounting opening into which an end of the roof reinforcement is fitted is formed in the roof side rail; Fit the end of the roof reinforcement into the opening and secure it.
The connecting portion to which the end portion is fixed includes an opening closing plate that covers the reinforcing groove opening at the end of the roof reinforcement and connects the flange and the upper panel of the roof side rail; The above object is achieved by fixing a joint reinforcement provided with a reinforcing groove closing plate disposed in the reinforcing groove so as to be continuous with the inner panel of the side rail.

[Effect]

In this invention, a connection is provided in the reinforcing grooves at both ends of the roof reinforcement that is fixed in the mounting opening of the roof side rail, so that the reinforcing groove opening is closed so as to have substantially the same cross-sectional shape as the closed cross-sectional shape of the roof side rail. By fixing the partial reinforcement, the cross-sectional shape of the roof side rail portion to which the roof reinforcement is attached and the other roof side rail portions can be made almost the same, and the rigidity of the roof side rail can be improved. I can do it. Further, by fixing the ends of the reinforcement, in which the reinforcing grooves are formed up to both ends, to the attachment openings of the roof side rails, the rigidity of the connection between the roof reinforcements and the roof side rails can be improved. As a result, the torsional rigidity of the vehicle body can be improved, and the steering stability and vibration and noise performance of the vehicle can be improved.

〔Example〕

Hereinafter, embodiments of this invention will be described with reference to the drawings.

In this embodiment, as shown in FIGS. 1 to 3, a reinforcing groove 10 is formed in the longitudinal direction up to both ends 12A, and a flange 1 is formed in the widthwise end.
1 is attached to the inside of the roof panel 16 of the body in the vehicle width direction, with the end 12A of the roof reinforcement 12 fixed to the roof side rail 14 of the body. In the roof reinforcement mounting structure, a mounting opening 18 into which the end portion 12A of the roof reinforcement 12 is fitted is formed in the roof side rail 14;
The end 12A of the roof reinforcement 12 inside
The connecting portion 20, to which the end portion 12A is fixed, covers the reinforcing groove opening 10A of the end portion 12A of the roof reinforcement 12, and also covers the upper panel 14A of the flange 11 and the roof side rail 14. an opening closing plate 24 that connects the
and the inner panel 14 of the roof side rail 14
A connecting portion reinforcement 28 is fixed to the connecting portion reinforcement 28, which is provided with a reinforcing groove closing plate 26 disposed in the reinforcing groove 10 so as to be continuous with the reinforcing groove 10.

As shown in FIG. 1, the roof side rail 14 has a closed cross-sectional structure including an upper panel 14A, an inner panel 14B, and an outer panel 14C.

The roof reinforcement 12 is formed to have a hat-shaped cross section, and a thermosetting adhesive is provided on the upper surface of the flange 11 of the roof reinforcement 12 so that the roof reinforcement 12 is bonded to the roof reinforcement 12 through the adhesive. is fixed to the roof panel 16. Further, the reinforcing groove 10 at the end portion 12A of the roof reinforcement 12 is formed so that its depth gradually increases toward the longitudinal edge.
A contact plate 1 that contacts the outer panel 14C of the roof side rail 14 is provided at the end of the end portion 12A.
2B and an edge flange 12E.

A flange 26A extends along the periphery of the reinforcing groove closing plate 26 of the connecting portion reinforcement 28 so as to extend along the side plate 12C and the bottom plate 12D that constitute the reinforcing groove 10 of the roof reinforcement 12.

Further, the opening closing plate 24 of the joint reinforcement 28 has a working hole 24 for pot-welding the bottom plate 12D of the roof reinforcement 12 and the inner panel 14B of the roof side rail 14.
A is formed.

Next, the mounting opening 1 of the roof side rail 14 is
End 12 of roof reinforcement 12 to 8
The installation of A will be explained. First, the connecting portion reinforcement 28 is attached to the end portion 12A of the roof reinforcement 12. This attachment is carried out by spot welding the flange 26A of the reinforcing groove closing plate 26, the side plate 12C of the end 12A, and the bottom plate 12D, and by spot welding the opening closing plate 24 and the flange 11 of the end 12A. Next, the end portion 12A of the roof reinforcement 12 to which the connecting portion reinforcement 28 is fixed is fitted into the attachment opening 18 of the roof side rail 14. Next, the tip of a welding machine is inserted through the working hole 24A of the opening closing plate 24 to spot weld the bottom plate 12D of the end portion 12A and the inner panel 14B of the roof side rail 14. In addition, the opening closing plate 24 and the edge of the upper panel 14A of the mounting opening 18 of the roof side rail 14, and the roof side rail 1
The drip channel portion of the outer panel 14C of No. 4, the edge flange 12E of the roof reinforcement 12, and the opening closing plate 24 are spot welded, respectively.

Note that the cross mark 30 in the figure indicates a spot weld.

According to this embodiment, the connecting portion reinforcement 28 is disposed within the reinforcing groove 10 of the end portion 12A of the roof reinforcement 12 attached to the roof side rail 14, and the roof side rail 14 has a closed cross-sectional structure. By configuring substantially the same closed cross section, the rigidity of the roof side rail 14 to which the roof reinforcement 12 is attached can be improved. Moreover, the joint reinforcement 28 can improve the joint rigidity between the roof side rail 14 and the roof reinforcement 12. Thereby, the torsional rigidity of the vehicle body can be improved.

In particular, in this embodiment, the depth of the reinforcing grooves 10 at both ends 12A of the reinforcement 12 is gradually increased toward the edges, so that the cross-sectional shape of the bottom plate 12D matches the cross-sectional shape of the roof side rail 14. By forming this, the joint rigidity between the roof side rail 14 and the roof reinforcement 12 can be further improved.

In the above embodiment, the connecting portion reinforcement 28 is connected to the roof reinforcement 1 in advance.
However, this invention is not limited to this, and after the roof reinforcement 12 is fixed to the roof side rail 14, the end portion 12A of the roof reinforcement 12 is fixed to the roof side rail 14. The connecting portion reinforcement 28 may be fixed to.

Further, in the above embodiment, the roof side rail 14 includes the upper panel 14A and the inner panel 1.
4B and an outer panel 14C, the invention is not limited thereto, and the roof side rail 14 may be composed of an inner panel and an outer panel.

Further, in the above embodiment, the roof reinforcement 12 is integrally formed;
This invention is not limited to this, for example,
In FIGS. 1 and 3, a dividing line 40 indicated by a two-dot chain line divides the roof reinforcement into a main portion whose cross-sectional shape is constant in the longitudinal direction and an end portion whose cross-sectional shape gradually changes. Then, this may be joined at the time of assembling the roof side rail. With such a configuration, the main portion of the roof reinforcement can be manufactured by roll forming.

[Effect of idea]

This invention, configured as described above, has the advantage of improving the mounting rigidity of the roof reinforcement and improving the torsional rigidity of the vehicle body, thereby improving the handling stability performance and vibration and noise performance of the vehicle. It has a good effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the automobile roof reinforcement mounting structure according to this invention;
Fig. 2 is an enlarged sectional view taken along the - line in Fig. 1, Fig. 3 is an exploded perspective view showing the roof reinforcement mounting structure in the same embodiment, and Fig. 4 shows the conventional roof reinforcement mounting structure. FIG. 5 is a sectional view taken along the line - in FIG. 4, and FIG. 6 is a perspective view showing another conventional roof reinforcement mounting structure.
FIG. 3 is a cross-sectional view corresponding to a cross section taken along a line. DESCRIPTION OF SYMBOLS 10... Reinforcement groove, 12... Roof reinforcement, 14... Roof side rail, 16... Roof panel, 24... Opening closing plate, 26... Reinforcement groove closing plate, 28... Connecting portion reinforcement.

Claims (1)

[Claims for Utility Model Registration] A roof reinforcement comprising reinforcing grooves formed to both ends in the longitudinal direction and a flange formed at the ends in the width direction, the ends of the roof reinforcement being connected to the roof side of the body. In an automobile roof reinforcement installation structure in which the roof reinforcement is fixed to a rail and installed inside a roof panel of a body in the vehicle width direction, the roof side rail forms an installation opening into which an end of the roof reinforcement is fitted. death,
The end of the roof reinforcement is fitted and fixed into the mounting opening, and the connecting part to which the end is fixed covers the reinforcing groove opening at the end of the roof reinforcement, and the flange and the roof are connected to each other. A connecting portion reinforcement is fixed, which includes an opening closing plate connecting the upper panel of the side rail and a reinforcing groove closing plate disposed in the reinforcing groove so as to be continuous with the inner panel of the roof side rail. An automobile roof reinforcement mounting structure characterized by: