JPS5973320A - Drain construction of weather strip - Google Patents

Abstract

PURPOSE:To easily form a drain passage in the case of a drain in a weather strip fitted to the mounting flange in the opening edge of a car body, by forming the weather strip in such a manner that rib or recessed parts are provided in a seal lip corner part so as to form the passage between the weather strip and an outer panel of the car body. CONSTITUTION:Two stripes of parallel ribs 12a, 12b of inwardly protruding shape are integrally formed in the inside face 11 of a seal lip 7. Increasing a slope of the inside being a drain passage 13 while decreasing a slope of the reverse side, a set of these ribs 12a, 12b are laterally provided in the bottom side corner part of a weather strip W. By such constitution, when the weather strip W is fitted to a flange in the opening edge of a car body, the ribs 12a, 12b are adapted to an outer panel 4 of the car body, and the drain passage 13 is formed between the ribs 12a, 12b and the outer panel 4. In this way, the drain passage can be easily formed.

Description

[Detailed Description of the Invention] The present invention relates to a water drainage structure for an IJ tube (weathers),
In particular, the present invention relates to a type of water draining structure in which a weather strip is fitted into a mounting 7 flange of an opening edge of a vehicle body.

The conventional water drainage structure of this type of weather strip is attached to the side so that it can be opened and closed via a hinge 1 provided on one side edge of the window opening and a lock handle 2 provided on the other side edge, as shown in Fig. 1. Taking the window S as an example, in this type, a weather strip W is attached to the edge of the window opening in order to maintain moisture around the side window S when the glass of the side window S is closed. At the same time, a drain bead 3 is provided at the lower corner of the window opening edge. As shown in FIG. 2, the mounting structure of the weather strip W is as shown in FIG. A mounting 7 lanlay 6 is formed, and a drainage bead 3 is recessed in the base of the mounting flange 6, while a weather strip W for sealing is attached to the mounting base T having a substantially U-shaped cross section. It consists of a seal lip 8 which extends outward from one end of the mounting base T to the body weight and comes into elastic contact with the vehicle body outer panel 4 to maintain watertightness between the weather strip W and the vehicle body outer panel 4; A plurality of holding lips 9 extending inward are formed on the inner surface of the above-mentioned base 7, and the above-mentioned mounting base I is fitted to the above-mentioned mounting flange 6, and the holding lips 9 are elastically attached to the surface of the mounting flange 6. In Fig. 2, reference numeral 10 denotes an auxiliary seal lip that comes into elastic contact with the inner circumferential surface of the glass when the side window S is closed and keeps the space between the weather strip W and the side window S watertight. It is.

In such a weather strip and knob mounting structure,
Due to mounting errors in the weather strip W and molding errors in the vehicle body outer panel 4, the seal lip 8 may not be in complete contact with the vehicle body outer panel 4. In such a case, there is a risk that rainwater, water from car washing, etc. may enter the vehicle interior through the incomplete seal between the seal lip 8 and the vehicle body outer panel 4.
Since the retaining lip 9 is in elastic contact with the mounting flange 6 surface of the weather strip W, this retaining lip 9 prevents rainwater from entering the vehicle interior, and this rainwater is directed inside the weather strip W. The water flows along the bottom side of the water, and is discharged from the drain bead 3 to the outside of the vehicle.

However, when a drain bead is recessed in a vehicle body panel, there is a problem in that there is a limit to the molding process and the drain passage cannot be enlarged.

Incidentally, such a problem is not limited to the above-mentioned opening/closing type side window.As shown in FIG. The same applies to a weather strip mounting structure for a fixed type side window in which a seal lip 8 provided in one body is brought into elastic contact with the outer panel 4 of the vehicle body.

The present invention has been made in view of these conventional problems, and its object is to enable the formation of water drain passages in weather strips using simple molding means.

Further, the present invention forms a water drainage passageway that passes through the inside of the IJ knob and the outside of the vehicle on the inner surface of the seal lip at a part of the corner of the weather strip where the mounting base is fitted to the mounting 7 flange of the window opening edge. This is a summary of what was done.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

In the first embodiment shown in FIGS. 4 to 6, a water-draining structure of a weather strip around an openable side window is shown. a base 7, a seal lip 8 that extends integrally from the mounting base I and comes into elastic contact with the vehicle body outer panel 4, and an auxiliary seal lip 10 that extends outside the mounting base T and comes into elastic contact with the inner peripheral surface of the glass when the side window S is closed. The inner surface 11 of the seal lip γ has two ribs 12a and 12b that protrude inward and extend in parallel from the proximal end to the distal end of the seal lip 8. It is integrated. Further, as shown in FIG. 6A, the ribs i 2a, 12b have a large inclination on the drain passage 13 side, and a small inclination on the opposite side. A pair of ribs 12 are provided at lower corner portions 31 and 32 of the weather strip W, as shown in FIG. ,
It should be noted that forming a part of the corner of the weather strip W is performed by molding, whereas the straight part is formed by extrusion molding. Therefore, since the ribs i2a and 12b can be molded together when forming the lower corner portions 31 and 32, the ribs 12a and 12b can be easily provided in a desired shape.

Therefore, as shown in FIG. 5, the weather strip wt according to this embodiment is a mounting flange 6 of the weather strip W formed by spot welding flanges 6a and 6b of the vehicle body outer plate 4 and the vehicle body plate t. The station building is fitted and attached to the
Two retaining lips 9 extending inward and formed on the inner surface of the mounting flange 6 of the weather strip W come into elastic contact with the outer and inner surfaces of the mounting flange 6, and the sealing lip 8 is attached to the vehicle body outer panel 4. Ballistic contact and weather stripping W
Watertightness is maintained between the weather strip W and the mounting flange 6 and between the weather strip W and the vehicle body outer panel 4. Note that watertightness is maintained between the side window S and the side window S by the elastic contact of the auxiliary seal lip 10. At the corner portions 31 and 32 of the trench weather strip W, as shown in FIGS. 5 and 6B, two lips 12a and 12b projecting inward contact the vehicle body outer plate 4, and A water drain passage 13 is formed between the inner surface 11 of the seal lip 8 surrounded by the lips 12a and 12b and the outer panel 4 of the vehicle body, which communicates the inside of the weather strip W with the outside of the vehicle. Because of the shape of the ribs 12a and 12b as shown in FIG. 6A, the seal lip 11 between the ribs 12a and 12b is pulled in the longitudinal direction, so the seal lip 8 does not block the drain passage 13.

To prevent the rib 12 from being crushed and the water drain passage 13 being blocked, remove the weather strip W.
Even if rainwater or the like infiltrates into the vehicle interior through a defective seal between the seal lip 8 and the vehicle outer plate, the rainwater will be collected by the retaining lip 9 and will not enter the vehicle interior. - It flows inside the strip W toward the water drain passage 13 and is discharged from the water drain passage 13 to the outside of the vehicle along the vehicle body outer panel 4, so that rainwater, etc. can overcome the sealing surface of the retaining lip 9 and enter the vehicle interior. There is no concern at all.

7 to 9 show a second embodiment of the present invention, in which a corner portion 41 of the lower side of the weather strip W is shown.
42, four parts 14 are notched on the inner surface 11 of the seal lip 8 from the base end to the distal end of the seal lip 80.
A pair of .

Therefore, as shown in FIG.
When the seal lip 8 comes into elastic contact with the car body outer plate 4 and the watertightness between the weatherstrip W and the car body outer plate 4 is maintained, the seal lip 8 comes into contact with the car body outer plate 4 and maintains watertightness between the weatherstrip W and the car body outer plate 4. In part 41.42, Figures 8 and 9
As shown in the figure, a water drain passage 15 is formed between the inner surface of the seal lip 8, which is abutted by the four parts 14, and the outer panel 4 of the vehicle body, which communicates the inside of the weather strip W with the outside of the vehicle. Since this drainage passage 15 is formed by the recess 14, it will not be blocked, and it will not be blocked if rainwater or the like enters from the sealing defect between the seal lip 8 of the weather strip W and the vehicle body outer panel 4. However, this infiltrated rainwater is discharged from the vehicle through the water drain passage 15 and does not enter the vehicle interior, and the seal lip 8 does not protrude outward, so there is no risk of spoiling the appearance. There is no such thing.

Incidentally, in each of the above embodiments, the water drainage structure of the weather strip around the openable side window has been described, but the present invention is not limited to this.
It goes without saying that the present invention can be applied to the weather strip drainage structure of a fixed type side window jl in which a side window S is fitted and fixed into a weather strip W as shown in the figure, and the seal lip as shown in FIG. A water drainage passage may be formed between the seal lip and the outer panel of the vehicle body by providing a lip 12 projecting inward on the inner surface 11 of the seal lip 8, or by providing a recess on the inner surface of the seal lip (not shown in the drawings). I can do it. It's not limited to side windows,
It goes without saying that the present invention can be applied to a weather strip mounting structure in which the weather strip is fitted into a mounting 7 flange formed at the edge of a window opening, such as a front window or a rear window.

As explained above, according to the water stripping structure of the weather strip according to the present invention, rainwater, etc. that have entered the weather strip from the sealing defect between the seal lip and the outer panel of the vehicle body are reliably drained from the water drain passage to the outside of the vehicle. Because it is discharged, it does not accumulate in the weatherstrip at any time, and its infiltration into the vehicle interior is completely blocked, improving the sealing performance at the mounting portion of the weatherstrip. Furthermore, since the ribs and recesses are not visible from the outside, there is no risk of deteriorating the appearance quality. Furthermore, since the drainage passage of the present invention is provided in a part of the corner of the weather strip, the drainage passage can also be molded into a JR shape when molding a part of the corner, and the drainage passage of the desired shape can be formed. can be easily provided.

[Brief explanation of drawings]

Fig. 1 is a side view of a vehicle equipped with a side window that can be opened and closed, and Fig. 2 shows an example of a conventional weather strip drainage structure. -II line sectional view,
3 is a sectional view similar to FIG. 2 showing another example of the conventional weather strip, FIG. 4 is a perspective view showing an embodiment of the weather strip according to the present invention, and FIG. 5 is a sectional view of the weather strip shown in FIG. 4. - Sectional view taken along the line V-v in Figure 4, showing the drainage structure using strips, and Figure 6
Figure A is a sectional view taken along the line Vl-VI in Figure 4 showing a similar drainage structure, Figure 6B is a sectional view showing the relationship between the weather strip and the panel, and Figure 7 is a weather strip according to the present invention. Fig. 8 is a cross-sectional view of ■ and -■ 11 in Fig. 7 showing a water drainage structure to which the weather strip shown in Fig. 7 is applied, and Fig. 9 is a perspective view showing a similar water drainage structure. 7 is a sectional view taken along the line IX-JX in FIG. 7, and FIG. 10 is a sectional view similar to FIG. 8 showing another embodiment of the present invention. 4... Vehicle body outer plate 5... Vehicle body panel 6... Mounting 7 Lunge T... Mounting base 8... Seal lip 11... Inner surface of seal lip ° 12... Lip 14.・Concavity 13.15
...Water drain passage W...Weather strip 31.32, 41.42...Corner part patent applicant
Nissan Motor Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A mounting flange for the weather strip is formed on the edge of the vehicle body opening, and a mounting base having a substantially U-shaped cross section and a seal lip facing outward are formed on the weather strip, and the mounting base is fitted into the mounting flange. In the weather strip mounting structure in which the seal lip is brought into elastic contact with the outer panel of the vehicle body, ribs or four parts projecting inward are provided on the inner surface of a part of the corner of the seal lip,
A water drain structure for a weather strip, characterized in that a water drain passage communicating between the inside of the weather strip and the outside of the vehicle is formed between the inner surface of the seal lip and the outer panel of the vehicle body by the lip or recess.