JPS6119447B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rear window weather strip for motor vehicles, particularly of the hatchback door type.

Fig. 1 shows a rear perspective view of a hatchback door type automobile. It consists of a fixed glass and a rear window glass (back door glass) 4.

The rear window weather strip 3 has a flange fitting groove 5 and a glass fitting groove 6 as shown in FIG.
Then, the glass fitting groove 6 is filled with a sealant 7, and the peripheral edge of the rear window glass 4 is fitted, and the rear window glass 4 is clamped and fixed to the interior of the vehicle. It seals the outside. Further, the rear window weather strip 3 has an inner seal lip 8 and an outer seal lip 9 in a portion that is in close contact with the door frame outer 2a, and the close portion is sealed in multiple stages. . (Refer to Volume 13 of Automotive Engineering Complete Book, Passenger Car Body Co., Ltd., pp. 160-162) By the way, in recent years, such hatchback door type vehicles have been equipped with rear window weather shields as shown in the second figure. A spoiler protrusion 10 is provided on the outside of the lower side of the lip 3 and extends relatively largely from the outside general surface 3a of the weather strip. Efforts are being made to reduce air resistance by rectifying air flow.

However, if the spoiler protrusion 10 is integrally extended to the outside of the lower side of the rear window weather strip 3 in this way, the spoiler protrusion 10 will be pressed from above as shown by arrow F when the door is closed. In this case, spoiler protrusion 1
Along with 0, the outside of the lower side of the weather strip 3 is pulled and deformed as a whole as shown by the chain line,
The outer edge of the glass fitting groove 6 rises, creating a gap, and the sealer 7 filled in the fitting groove 6 protrudes outside, resulting in a problem of poor sealing performance and appearance.

In view of the above-mentioned conventional situation, the present invention provides a rear window weather system in which even when the spoiler projection is pressed from above, only the spoiler projection is deformed and the entire outside of the lower side of the weather strip is not deformed. The purpose is to provide strips.

In order to achieve the above object, in the present invention, a spoiler protrusion extends outside the lower side of the rear window weather strip without contacting the door frame, and the spoiler protrusion is constructed with a bendable flexible structure. By doing so, when an external force is applied to the spoiler projection from above, only the spoiler projection is flexibly deformed, and the flexural deformation due to tension does not spread to the outside of the lower side of the weather strip. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

That is, in the present invention, as shown in FIG.
The door frame 2 is installed in a cantilevered manner on the outside of the lower side of the rear window weather strip 3, which has the rear window glass 4 clamped and fixed to the opening periphery of the door frame 2.
The spoiler projection 10A, which extends without contacting the door frame outer 2a, is hollow-molded to have a flexible structure that can be bent.

According to this embodiment structure, the spoiler protrusion 10
When an external force F acts from above A, this external force F
As shown by the chain line, the hollow part 11 is crushed and the spoiler protrusion 10A is only bent and deformed, and no large tensile force is applied to the outside of the lower side of the weather strip 3. This can prevent the outer edge of the glass fitting groove 6 from opening due to the spread of the overall bending deformation.

In the embodiment shown in FIG. 4, the spoiler protrusion 10B is integrally molded with the outside of the lower side of the weather strip 3 using sponge rubber 12, so that the spoiler protrusion 10B has a bendable and flexible structure. Since the rear window weather strip 3 is integrally press molded using solid rubber 13 as is well known, even if the spoiler protrusion 10B is made of sponge rubber 12, the spoiler protrusion 10B can be easily integrally extruded at the same time.

In the case of this embodiment as well, when the external force F acts on the spoiler protrusion 10B from above, the spoiler protrusion 10B is flexibly bent and deformed.
This prevents a large tensile force from acting on the outside of the lower side of the weather strip 3, and prevents the outer edge of the glass fitting groove 6 from opening.

The embodiment shown in FIG. 5 has a spoiler projection 10C.
A part of the molded base is molded with sponge rubber 12 to form a flexible structure. In this embodiment, the sponge rubber 12 is integrally molded to have a triangular cross section from the lower side of the spoiler projection 10C, thereby reducing the thickness of the solid rubber 13 at the molded base of the spoiler projection 10C.

Therefore, when an external force F is applied from above the spoiler protrusion 10C, the lower side of the molded base is molded with the sponge rubber 12, and the sponge rubber 12 has a triangular cross section, so that the compression deformation amount becomes large. Therefore, the spoiler protrusion 1
0C is flexibly deformed from the molded base due to compressive deformation of the sponge rubber 12, and at this time, since the thickness of the solid rubber 13 above the molded base is small, a large tensile force is applied to the outside of the lower side of the weather strip 3 in this case as well. This prevents the opening of the outer edge of the glass fitting groove 6 from opening.

Furthermore, in this embodiment, the sponge rubber 12 is present below the molded base of the spoiler protrusion 10C, making it difficult to see, and the solid rubber 13 is integrated with the outside of the lower side of the weather strip 3 in appearance.
It has the advantage that it does not spoil the appearance because it is molded.

Although the present invention is applied to a hatchback door type vehicle, it is also possible to apply the present invention to a hard top type vehicle with a gentle slope of the rear window glass.

As described above, according to the present invention, the spoiler protrusion extends outside the lower side of the rear window weather strip in a cantilever shape without contacting the door frame, and has a bendable flexible structure.
Even when an external force is applied to the spoiler projection from above, the spoiler projection flexibly deforms and prevents a large tensile force from acting on the outside of the lower side and the flexural deformation spreads, thereby preventing the glass fitting. This has a great practical effect in that it can prevent a decrease in sealing performance due to the opening of the outer edge of the groove.

[Brief explanation of the drawing]

Fig. 1 is a rear perspective view of an automobile, Fig. 2 is a sectional view taken along the line A-A in Fig. 1 showing the installation state of a conventional rear window weather strip, and Fig. 3 is an illustration of an embodiment of the present invention. A sectional view similar to FIG. 2 showing an attached state, and FIGS. 4 and 5 are sectional views showing different embodiments of the present invention in an attached state. 2c... Opening rim, 3... Rear window weather strip, 4... Rear window glass, 10
A, 10B, 10C... spoiler projection, 12...
...Sponge rubber.

Claims (1)

[Scope of Claims] 1. A spoiler protrusion is provided on the outer side of the lower side of a rear window weather strip that fits around the periphery of the opening where the rear window glass is attached, clamps and fixes the rear window glass, and seals the inside and outside of the vehicle interior. A rear window weather strip for an automobile, characterized in that it extends in a cantilevered manner without contacting a door frame, and has a flexible structure in which the spoiler protrusion can be bent. 2. The rear window weather strip for an automobile according to claim 1, which has a flexible structure by hollow molding a spoiler protrusion. 3. The rear window weather strip for an automobile according to claim 1, which has a flexible structure by molding the spoiler protrusion from sponge rubber. 4. The rear window weather strip for an automobile according to claim 1, wherein the spoiler projection has a flexible structure by molding a part of its molded base with sponge rubber.