JPH0417426Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a roof bow mounting structure for an automobile.

[Conventional technology]

Conventionally, in automobiles of the type in which the roof is connected to the side roof rails at the top surface of the roof, a roof bow, which is equipped to support the roof panel and prevent it from denting, is attached as shown in Fig. 4. There is.

That is, one or more roof bows 2 are spanned between a pair of left and right side roof rails 3 extending in the vehicle length direction, and the roof panel 1 is stretched and supported on the roof bows 2.

The roof bow 2 is formed by repeatedly bending a single plate member up and down in the vehicle length direction (a wavy cross-sectional shape in which the vertical cross-section forms a rectangular wave shape), and both ends of the roof bow are crushed into a single plate shape. It is fixed to the side roof rail inner 3b of the side roof rail 3 with bolts or the like.

[Problem that the invention attempts to solve]

However, in the case of such a conventional structure, there is a problem that the workability is poor because bolts are tightened to the side roof rail inner 3b.

In addition, the part to be bolted has to be formed into a single plate, which causes stress concentration in the area from the thick, corrugated cross-section to the single plate, which is undesirable in terms of strength. .

In order to eliminate such problems, it is conceivable to spot-weld the roof bow 2 to the roof panel 1 in advance and assemble it as a subassembly, and then attach this assembled part to the side roof rail 3. When spot welding the roof bow 2 to the downward bent part 1b of the roof panel 1, the standing wall part 3c of the side roof rail outer 3a becomes an obstacle, and welding to the downward bent part 1b is difficult. There is a problem in that it is difficult to hit the stick vertically.

The present invention attempts to solve these problems by providing a roof bow mounting structure for automobiles that enables spot welding of the roof bow and roof panel to improve assembly workability and strength. The purpose is to provide.

[Means for solving problems]

Therefore, the automotive roof bow mounting structure of the present invention forms part of a drip channel by a flange surface that extends almost horizontally on the inside of the vehicle and a vertical wall that extends upward from the end of the flange surface on the outside of the vehicle. a side roof rail having a downwardly bent portion bent downward from the end of the ceiling portion thereof to form the drip channel together with the flange surface and the vertical wall portion; a roof panel having a groove bottom that is bent horizontally toward the flange surface and can be joined to the upper surface of the flange surface; and a roof bow that is arranged on the lower surface of the roof panel and whose end edge is joined to the side roof rail. between the downward bent portion of the roof panel and the groove bottom,
A first inclined surface is formed that slopes downward toward the outside of the vehicle, while the first inclined surface is formed at an edge of the roof bow.
forming a second inclined surface that can be joined to the inner surface of the inclined surface;
The roof bow is characterized in that the end edge portion of the roof bow is sandwiched between the groove bottom portion and the flange surface.

[Effect]

In the above-mentioned roof bow mounting structure for an automobile according to the present invention, both ends of the roof bow are spot welded to the inclined surfaces of the bent side edges of the roof panel that constitute the inner wall of the drip channel.

〔Example〕

Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. Figures 1 to 3 show an automobile roof bow mounting structure as an embodiment of the present invention.
FIG. 1 is a perspective view schematically showing the main parts thereof, FIG. 2 is a sectional view taken along the - arrow in FIG. 1, and FIG. 3 is a sectional view taken along the - arrow in FIG. 1.

As shown in FIGS. 1 to 3, a plurality of roof bows 2 are spanned over a pair of left and right side roof rails 3 extending in the vehicle length direction.

The roof bow 2 is formed into a shape that is repeatedly bent up and down in the vehicle length direction (a shape having a rectangular wavy cross section).

The roof panel 1 has a downward bent portion 1b, a groove bottom portion 1d outside the lower bent portion 1b, and an upper bent portion 1c on each of both side edges of the ceiling portion 1'. It comes into contact with a flange surface 3a' of the side roof rail outer 3a of the roof rail 3, which is formed to extend substantially horizontally toward the inside of the vehicle.

An upright wall portion 3c is formed in a portion extending upward from the outer end of the flange surface 3a', and together with the flange surface 3a' constitutes a part of the drip channel. In this way, a drip channel 4 is formed by the vertical wall portion 3c, the downwardly bent portion 1b, the groove bottom portion 1d, and the upwardly bent portion 1c.

A plurality of first inclined surfaces (hereinafter referred to as "slanted surfaces") 1a are locally formed on the downwardly bent portion 1b of the roof panel 1. This slope 1
A is formed on the roof panel 1 spanning the downward bent portion 1b and the groove bottom portion 1d so as to be inclined downward toward the outside.

Further, second inclined surfaces (hereinafter referred to as "slanted surfaces") 2a are formed on both side edge portions of the roof bow 2 and come into contact with the inclined surface 1a of the roof panel 1.

Since the automobile roof bow attachment structure as an embodiment of the present invention is constructed as described above, the attachment of the roof panel 1 and the roof bow 2 to the side roof rail 3 is performed as follows.

That is, the welding rod 5 is brought into contact with the sloped surface 1a of the roof panel 1 and the sloped surface 2a of the roof bow 2 as shown in FIG. The roof bow 2 is fixed to form a subassembly. In this way, the subassembly is attached to the side roof rail 3, but at the edge of the roof bow where the slopes 1a and 2a do not exist, as shown in FIG.
The edge of the roof bow is sandwiched between the flange surface of the side roof rail 3 and the flange surface of the side roof rail 3, and spot welded.

Further, as shown in FIG. 3, in the general portion '1e where the sloped surface 1a is not formed in the groove bottom 1d,
The general portion 1e of the roof panel 1 and the flange surface 3a' of the side roof rail 3 are spot welded.

This completes the installation work, but there is no need to tighten bolts, reducing the number of man-hours.

[Effect of idea]

As described in detail above, according to the automobile roof bow mounting structure of the present invention, the flange surface extending substantially horizontally toward the inside of the vehicle and the vertical wall portion extending upward from the end of the flange surface outside the vehicle allow dripping to occur. a side roof rail having a portion forming part of a channel; a downwardly bent portion bent downward from an end of the ceiling portion of the side roof rail to form the drip channel together with the flange surface and the standing wall portion; and the downwardly bent portion; a roof panel having a groove bottom that is bent horizontally from a lower part of the roof panel toward the outside of the vehicle and that can be joined to the upper surface of the flange surface; In the roof bow, a first inclined surface is formed between the downwardly bent portion of the roof panel and the groove bottom, and the first inclined surface is inclined downwardly toward the outside of the vehicle; a second slope bondable to the inner surface of the first inclined surface;
With a simple configuration in which an inclined surface is formed and the end edge of the roof bow is sandwiched between the groove bottom and the flange surface, the roof bow and roof panel can be easily attached to the side roof rail by spot welding. This has the advantage of significantly reducing man-hours.

Additionally, it is no longer necessary to attach the edge of the roof bow as a single plate, and the bottom of the groove, the edge of the roof bow, and the flange of the side roof rail can be overlapped, increasing the rigidity of the roof structure near the drip channel. becomes possible.

Furthermore, in order to form an inclined surface for spot welding on the side edge of the roof panel that constitutes the drip channel, while forming the drip channel with the roof panel, the welding rod can be attached using the drip channel. It also has the advantage of allowing spot welding to be performed.

[Brief explanation of the drawing]

1 to 3 show a roof bow mounting structure for an automobile as an embodiment of the present invention. FIG. 1 is a perspective view schematically showing the main parts, and FIG.
Figure 3 is a sectional view taken from the - arrow in the figure, and Figure 3 is -
FIG. 4 is a schematic cross-sectional view showing a conventional roof bow attachment structure. 1... Roof panel, 1a... Inclined surface, 1b...
...Downward bending part, 1c...Upward bending part, 1d...Groove bottom, 1e...General part, 2...Roof bow, 2a
...Slope surface, 3...Side roof rail, 3a...
...Side roof rail outer, 3a'...Flange surface, 3b...Side roof rail inner, 4...
Drip channel, 5...Welding rod.

Claims (1)

[Scope of utility model registration request] A side roof rail having a portion forming a part of a drip channel by a flange surface extending substantially horizontally on the inside of the vehicle and a standing wall portion extending upward from an end portion of the flange surface on the outside of the vehicle, the flange surface and the standing wall. A downwardly bent part bent downward from the end of the ceiling part to form the drip channel with the part, and a downwardly bent part bent horizontally from the lower part of the downwardly bent part toward the outside of the vehicle to form the upper surface of the flange surface. a roof panel having a groove bottom that can be joined; and a roof bow disposed on the lower surface of the roof panel and having an end edge connected to the side roof rail, wherein A first sloped surface that slopes downwardly toward the vehicle exterior is formed between the groove bottom and the roof bow, and a second sloped surface that can be joined to the inner surface of the first sloped surface is formed at the end edge of the roof bow. A roof bow mounting structure for an automobile, characterized in that an end edge of the roof bow is sandwiched between the groove bottom and the flange surface.