JPH0256276B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a roof side rail of a vehicle.

(Prior art) Conventional vehicle roof side rail structures include, for example, Japanese Utility Model Application Publication No. 128180/1983 and Japanese Utility Model Application No. 128180/1983.
- The one described in Publication No. 114771 is known.

As shown in FIG. 5, in these structures, a roof side rail 04, which is formed by joining and fixing an outer roof side rail 02 and an inner roof side rail 03, is attached to the lower left and right sides of the roof panel 01 in the front-rear direction. The roof drips 05 were extended and were partially fixed and joined to the roof side rail outer 02 by spot welding performed at intervals in the longitudinal direction.
Note that a in the figure indicates a partially fixed portion.

(Problems to be Solved by the Invention) However, in such a conventional roof side rail structure, the roof side rail outer and the roof drip are joined by partial fixation, and the parts other than the partially fixed part are Since a small gap remained at the bonded portion of the non-adhesive portion, the following problem occurred when electrodeposition coating was performed.

During electrocoating, the vehicle is immersed in a paint bath. At this time, paint also enters between the roof panel and the roof side rail outer, and furthermore, the paint enters between the roof side rail outer and the roof drip.

After that, when the vehicle is pulled up from the paint tank, the paint between the roof side rail outer and the roof panel is discharged from a discharge hole (not shown), but the paint in the gap with the roof drip remains due to capillary action. .

This residual paint was not sufficiently removed by subsequent washing with water, but instead gradually dripped onto the outer surface of the roof side rail outer over a long period of time.

As a result, excess paint, such as streaks, adheres to the outer surface of the vehicle body, and the work to remove this paint is performed as a pre-processing step for final painting, which poses a problem in that it requires more effort and time. In addition, if the paint removal work is insufficient, convex portions are formed on the finished painted surface, which deteriorates the quality of the paint.

In addition, if you wait until the paint that has gotten into the non-adhesive area drips off naturally before washing, or if you wash the paint to the crevices of the non-adhesive area,
This requires a great deal of time and effort.

(Means for Solving the Problems) Therefore, in the present invention, in order to solve the above-mentioned problems, roof drips arranged in the front and back direction are fixed to the lower portions of the left and right sides of the roof panel, and the roof drips are fixed to the lower portions of the roof panel on both the left and right sides. A roof side rail formed by joining and fixing the inner roof side rail is disposed in the front-rear direction along the inside of the lower left and right sides of the roof panel with a gap between it and the roof panel, and The roof side rail outer and the roof drip are joined, and a plurality of partially fixed parts are provided at equal intervals in the front-rear direction to partially fix the two, and the roof side rail outer located below the joined part of the roof drip is attached to the outside of the vehicle. In the roof side rail structure of a vehicle, the roof side rail outer and the roof drip are joined to each other in a non-fixed part between the plurality of partially fixed parts, and a roof panel and The means is such that a drain passage is formed that vertically communicates the gap between the roof side rail and the outside.

(Function) Therefore, in the vehicle roof side rail structure of the present invention, when fixing the roof side rail outer and the roof drip, the drain passages are partially fixed by means such as welding. do.

Therefore, the fixing location (forming a partially fixed portion) can be easily identified by the drain passage, and the fixing work is facilitated.

In addition, during electrodeposition painting, when the vehicle is lifted from the paint tank, paint that has entered between the roof panel and the roof side rails is drained outside through multiple drain passages, and the roof side rail outer Any paint that has entered the non-fixed portion between the partially fixed portion of the roof drip and the roof drip can also be actively drained outside in a short period of time through this drain passage, and will not remain in this portion due to capillary action.

Therefore, in the post-electrodeposition coating process, the paint will not flow out onto the outer surface of the roof side rail from the non-adhered portion between the roof side rail outer and the roof drip.

(Example) Hereinafter, an example of the present invention will be described in detail as shown in FIGS. 1 to 4.

First, the configuration of the embodiment will be explained.

A vehicle roof side rail structure A according to an embodiment of the present invention is provided on a vehicle B, and has a roof side rail 10, a roof drip 20, and a drain passage 30 as main components.

The roof side rail structure A is provided at the lower portions of both the left and right sides of the roof panel 100, but since the structure is the same on both sides, only one will be described.

The roof side rail 10 is a roof panel 10
This roof side rail 10 extends in the front and back direction at the lower left and right sides of the roof side rail 10, and the roof side rail 10 has a roof side rail outer 11 and a roof side rail inner 12 forming a hollow part 13 and joining and fixing the upper and lower ends. has been done.

Further, a stepped portion 14 recessed toward the hollow portion 13 is formed on the roof side rail outer 11, and a surface above the stepped portion 14 is a joint surface 15 with the roof drip 20.

The roof drip 20 is connected to the roof panel 10.
The roof drip 20 is a member having a substantially U-shaped cross section that guides and drains water dripping from the vehicle body in the longitudinal direction of the vehicle body. It is joined to the joint surface 15 of the outer 11 by spot welding. The portion where the roof drip 20 and the roof side rail outer 11 are partially fixed by performing this spot welding is a partially fixed portion 21, and the partially fixed portion 21 is provided at a plurality of locations at equal intervals in the front-rear direction.

Note that this roof drip 20 is attached with a slight gap between it and the stepped portion 14 of the roof side rail outer 11. As shown in FIG. 4, this gap is closed with a sealant 22 after the coating is completely completed.

The drain passage 30 prevents paint from entering the space (gap) 50 between the roof panel 100 and the roof side rail 10 during electrodeposition coating and the roof side rail outer 1 between the partially fixed portions 21.
This drain passage 30 is designed to actively draw out paint that has entered the gap between the roof side rail outer 11 and the roof drip 20 to the outer surface of the vehicle body. It is formed by recessing the non-fixed part in the vertical direction on the hollow part 13 side.

Therefore, in this drain passage 30, the roof side rail outer 11 and the roof drip 2
The distance from 0 is getting wider.

Note that at the joint portion between the roof side rail outer 11 and the roof drip 20, the roof side rail 1 on the inside side of the vehicle is located at the rear of the vehicle body (not shown).
0 and the roof panel 100;
A paint removal hole (not shown) communicating with the hollow portion 13 of the roof side rail 10 is formed. Therefore, the paint that accumulates in the space 50 by lifting the vehicle from the electrocoating paint tank while tilting backward flows from the paint extraction hole to the hollow part 13, and from the hollow part 13 to the hollow part of the rear pillar 101. (not shown).

Next, the operation of the embodiment will be explained.

Electrodeposition painting is performed as an undercoating process for vehicle B. At that time, vehicle B is immersed in the paint tank. At this time, the roof side rail 10 and the roof panel 10
The paint also flows into the space 50 between the roof side rail outer 11 and the roof drip 20, which is the joint part between the roof side rail outer 11 and the roof drip 20, and the partially fixed part 21.
It also penetrates into the non-adherent parts in between.

Thereafter, the vehicle B is pulled up from the paint tank, and at that time, the paint that has accumulated in the space 50 mainly flows rearward through the hollow part 13 from a paint extraction hole (not shown) and is discharged from the hollow part of the rear pillar 101. ,
It is discharged from the drain passage 30.

Further, conventionally, paint infiltrates and remains in the non-adhered portion between the roof side rail outer 11 and the roof drip 20 due to capillary action, but in this embodiment, the paint d is applied to the plurality of drain passages 30. Accordingly, the roof drip 20 and the stepped portion 14
It is actively discharged to the outer surface of the vehicle body of the roof side rail outer 11 through the gap between the two, and does not remain in this area. Therefore, by washing with water afterwards, excess paint is washed away, and there is no possibility that residual paint will flow out from the non-adhesive portions after washing with water.

Thereafter, the vehicle B is placed in an oven (not shown) to be baked and painted, and then a finishing coat is applied to finish the painting.

As described above, in the structure A of the embodiment, the paint d that has entered the non-adhered portion of the roof side rail outer 11 and the roof drip 20 is removed from the drain passage 30.
Because it is actively discharged outside the car in a short time and does not remain in this area, there is no need to remove excess paint from the car body after washing with water. This saves time and effort.

Furthermore, when performing the work of fixing the partially fixed portion 21, the drain passage 30 serves as a guide for the fixed location, improving work efficiency.

After painting, a sealing material 22 is provided in the gap between the roof drip 20 and the stepped portion 14 to maintain the airtightness of the vehicle interior.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, in the embodiment, the roof side rail outer and the roof drip were partially fixed by spot welding, but other means such as using an adhesive may also be used.

Further, in the embodiment, the drain passage is formed by recessing the outer side of the roof side rail, but it may also be formed by recessing the roof drip side, recessing both sides, or by providing a groove. good.

Further, although the embodiment shows an example in which the present invention is applied to a one-box type automobile, the type of vehicle is not limited to the embodiment.

(Effects of the Invention) As explained above, in the vehicle roof side rail structure of the present invention, since the drain passage is provided, paint flows out and adheres to the outer surface of the roof side rail outer in the post-electrodeposition coating process. Therefore, there is no need to remove the excess paint, which reduces the number of painting steps and time, and improves the quality of the painting. .

Furthermore, the above-mentioned drain passage serves as a guide for the fixing location when partially fixing the roof side rail outer and the roof drip, and improves the workability during this fixing.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a roof side rail structure of a vehicle according to an embodiment of the present invention, Fig. 2 is a side view showing a vehicle equipped with the embodiment structure, and Fig. 3 is a cross-sectional view showing main parts of the embodiment structure. FIG. 4 is a longitudinal sectional view showing the structure of the embodiment, and FIG. 5 is a perspective view showing the conventional example. 10... Roof side rail, 11... Roof side rail outer, 12... Roof side rail inner, 20... Roof drip, 21... Partially fixed part,
30...Drain passage, 100...Roof panel.

Claims (1)

[Claims] 1. Roof drips arranged in the front and back direction are fixed to the lower left and right sides of the roof panel, and the roof side rail is formed by joining and fixing an outer roof side rail and an inner roof side rail, The roof side rail outer is disposed in the front-rear direction along the inner side of the lower left and right sides of the roof panel with a gap between the roof panel and the roof drip, and the roof side rail outer and the roof drip are joined and partially fixed together. A plurality of partial fixation parts are provided at equal intervals in the front-rear direction, and
In a roof side rail structure for a vehicle in which a roof side rail outer located below the joint portion of the roof drip is joined so as to face outside of the vehicle, the joint portion of the roof side rail outer and the roof drip is A roof side of a vehicle, characterized in that a drain passage is formed in a non-fixed part between a plurality of partially fixed parts, vertically communicating the gap between the roof panel and the roof side rail with the outside. rail structure.