JP2008006858A - Body side weather strip for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a body side weather strip with an excellent sealing property without forming a gap at a sponge sealing portion of a mounting base. <P>SOLUTION: This body side weather strip comprises an approximate U-sectioned mounting base 10 mounted to a flange part 4 formed on a body 2 of an automobile and fitted to the flange part 4, and a hollow sealing part 20. A resin core material 14 is embedded in the mounting base 10, and a sponge seal 11 elastically contacting the tip of the flange part 4 is provided at a corner between a bottom wall 10a and an outer wall 10c without forming a gap G between the bottom wall 10a and the outer wall 10c. The mounting base is extruded with a final cross section shape needing no bending. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a body side weather strip attached to a flange portion formed on a body of an automobile.

  This will be described with reference to FIGS. A body side weather strip 30 is attached to, for example, a door opening edge of the automobile body 2 in order to ensure a sealing property with the door 3. The body-side weather strip 30 has a substantially U-shaped cross section having a bottom wall 10a, an inner wall 10b, and an outer wall 10c. The body side weather strip 30 is attached to the flange 10 formed along the door opening edge and the door sash 3a. A hollow seal portion 20 that is elastically contacted is provided.

  In addition, a metal core 15 is embedded in the mounting base 10 to increase rigidity, and an inner lip 12 and an outer lip 13 that are engaged with the flange 4 are provided on the inner surfaces of the inner wall 10b and the outer wall 10c. Projected. Furthermore, a sponge seal 31 that is elastically contacted with the distal end portion of the flange portion 4 is integrally formed at a corner portion between the bottom wall 10a and the outer wall 10c of the mounting base portion 10.

  The conventional body side weather strip 30 having such a configuration is formed by extrusion, and in this case, in order to avoid the inner lip 12, the outer lip 13 and the sponge seal 31 from interfering with each other, as shown in FIG. Thus, after extruding in a state where the mounting base 10 is expanded, vent processing is performed in which pressure is applied in the direction indicated by the arrow in FIG.

  In the conventional body side weather strip 30, the sponge seal 31 is divided into a first sponge portion 31a projecting from the bottom wall 10a and a second sponge portion 31b projecting from the outer wall 10c for the reasons described above. Then, extrusion molding is performed, and the two are brought into contact with each other by subsequent vent processing.

  Therefore, as shown in FIG. 2, a gap G is inevitably formed between the first sponge portion 31a and the second sponge portion 31b, and water (rain water, car wash water, etc.) or There is a problem that noise enters the room and the sealing performance is lowered. In addition, indoor sound leaks out of the vehicle.

  The present invention was devised in view of these problems, and an object of the present invention is to provide a body-side weather strip that does not form a gap in the sponge seal portion of the mounting base and has excellent sealing properties.

  This will be described with reference to FIGS. 1, 4, and 5. The invention according to claim 1 includes a mounting base 10 having a substantially U-shaped cross section that is attached to the flange portion 4 formed on the body 2 of the automobile and is assembled to the flange portion 4, and a hollow seal portion 20. It is a body side weather strip, and the mounting base 10 has a resin core material 14 embedded therein, and a sponge seal 11 that elastically contacts the tip of the flange portion 4 at the corner between the bottom wall 10a and the outer wall 10c. Is formed without forming a gap G between the bottom wall 10a and the outer wall 10c, and is extruded with a final cross-sectional shape that does not require venting. .

  The invention according to claim 2 is attached to a flange portion 4 formed along the door opening edge of the automobile body 2, and has a substantially U-shaped mounting base portion 10 assembled to the flange portion 4 and a door sash 3a. A body-side weather strip having a hollow seal portion 20 that elastically contacts the inner surface of the flange portion 4 with an inner wall 10b embedded in a resin core member 14 embedded therein. A lip 12 is projected, an outer lip 13 is pressed from the outer wall 10c to press against the outer side surface of the flange portion 4, and a tip portion of the flange portion 4 is formed at a corner between the bottom wall 10a and the outer wall 10c. A sponge seal 11 that elastically contacts with the bottom wall 10a and the outer wall 10c is formed without forming a gap G, and is extruded with a final sectional shape that does not require venting. Is characterized in that the one that is.

  The automobile body-side weather strip 1 according to claim 1 includes a sponge seal 11 that elastically contacts the tip of the flange portion 4 at the corner between the bottom wall 10a and the outer wall 10c of the mounting base 10, and the bottom wall 10a and the outer wall 10c. Since the gap G is provided between the outer wall 10c and the outer wall 10c, the sealing performance between the mounting base 10 and the flange portion 4 can be improved. Thereby, rain water, car wash water, or noise outside the vehicle can be prevented from entering the room from the portion. In addition, it is possible to simultaneously prevent indoor sound from leaking out of the vehicle.

  The sponge seal 11 could be provided without forming a gap G between the bottom wall 10a and the outer wall 10c because the mounting base 10 was extruded with a final cross-sectional shape that does not require venting. Is due to. In order to perform the vent processing, as described in the prior art, it is necessary to perform extrusion molding in a state where the sponge seal 11 is divided. However, in the present invention, since the vent processing is unnecessary, the sponge seal 11 also has a final cross-sectional shape. Can be extruded.

  Further, since the resin core material 14 is embedded in the present invention, even if an unexpected external force is applied to the mounting base 10, the mounting base 10 has its final cross-sectional shape (original shape) due to the elasticity of the core material 14. Can be maintained.

  The vehicle body side weather strip 1 according to claim 2 is elastically formed at the corners of the bottom wall 10a and the outer wall 10c of the mounting base 10 and at the tip of the flange portion 4 in the same manner as the invention according to claim 1. Since the contacting sponge seal 11 is provided without forming the gap G between the bottom wall 10a and the outer wall 10c, the sealing performance between the mounting base 10 and the flange portion 4 can be improved. Thereby, the sealing performance in a door opening edge can be maintained more favorably.

  The body side weather strip 1 can be firmly attached to the flange portion 4 because the flange portion 4 is sandwiched from the inside and outside by the inner lip 12 and the outer lip 13 provided on the mounting base portion 10.

  Embodiments of an automobile body side weather strip 1 according to the present invention are shown in FIGS. 1, 4 and 5. This is attached to the flange portion 4 formed along the door opening edge of the automobile body 2. The mounting base portion 10 has a substantially U-shaped cross section assembled to the flange portion 4, and is integrally extruded to the mounting base portion 10. And a hollow seal portion 20 which is molded and elastically contacts the door sash 3a. An interior trim 16 that abuts the interior material 5 from the mounting base 10 is provided.

  The mounting base 10 has a hard resin core 14 embedded therein. Further, an inner lip 12 is pressed from the inner wall 10b to the inner side surface of the flange portion 4, and an outer lip 13 is pressed from the outer wall 10c to the outer surface of the flange portion 4. The flange portion 4 is formed by joining the inner panel 4a and the outer panel 4b. In addition, a sponge seal 11 that elastically contacts the tip of the flange portion 4 is formed at a corner between the bottom wall 10a and the outer wall 10c so that no gap G is formed between the sponge seal 11, the bottom wall 10a, and the outer wall 10c. Provided. The mounting base 10 (body side weather strip 1) is extruded with a final cross-sectional shape that does not require venting.

  The body side weather strip 1 for an automobile according to the present embodiment is provided with the sponge seal 11 at the corners of the bottom wall 10a and the outer wall 10c without forming a gap G between them. The sealing property between 10 and the flange part 4 can be improved. Accordingly, it is possible to prevent rainwater, car wash water, or noise outside the vehicle from entering the room from the portion. At the same time, the indoor sound can be prevented from leaking out of the vehicle. Thereby, the sealing performance between the door 3 and the body 2 at the door opening edge can be favorably maintained.

  The reason why the sponge seal 11 can be provided without forming the gap G between the bottom wall 10a and the outer wall 10c is that the mounting base 10 is extruded with a final cross-sectional shape that does not require venting. It is. Further, since the body side weather strip 1 has the resin core material 14 embedded therein, the core material 14 is elastic even if an external force is applied to the mounting base 10 so as to expand or narrow it. Since the external force is absorbed by the deformation, the mounting base 10 can maintain its final cross-sectional shape (original shape) as it is. Incidentally, when a metal core 15 is used, the core 15 is more likely to be plastically deformed by an external force than the resin core 14, so that the final cross-sectional shape of the mounting base 10 is easily deformed. Therefore, it is not preferable. Further, due to the recent increase in environmental problems, there is a demand for changing the core material from metal to resin material in order to reduce the weight and recycle the core material.

  The body side weather strip 1 can be firmly attached to the flange portion 4 because the flange portion 4 is sandwiched from the inside and outside by the inner lip 12 and the outer lip 13 provided on the mounting base portion 10.

  The body side weatherstrip 1 according to the present invention is not limited to being attached to the flange of the door opening edge as in the above embodiment, but can be attached to other parts (for example, the trunk room or the flange of the roof opening). .

It is a side view which shows the motor vehicle in which a body side weather strip is attached. It is sectional drawing which shows the body side weather strip which concerns on a prior art example. It is sectional drawing which shows the state after the extrusion molding of the body side weatherstrip shown in FIG. 2, but before vent processing. It is sectional drawing which shows embodiment of the body side weather strip which concerns on this invention. FIG. 5 shows a state where the body side weather strip shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body side weather strip 2 Body 3 Door 3a Door sash 4 Flange part 4a Inner panel 4b Outer panel 5 Interior material 10 Mounting base 10a Bottom wall 10b Inner wall 10c Outer wall 11 Sponge seal 12 Inner lip 13 Outer lip 14 Core material (made of resin)
15 Core material (metal)
16 Interior trim 20 Hollow seal part 30 Body side weather strip 31 Sponge seal 31a First sponge part 31b Second sponge part G Gap

Claims (2)

  Body side having a mounting base (10) having a substantially U-shaped cross section attached to a flange (4) formed on the body (2) of the automobile and assembled to the flange, and a hollow seal portion (20) In the weather strip, the mounting base is embedded with a resin core (14), and is a sponge that elastically contacts the tip of the flange at the corner between the bottom wall (10a) and the outer wall (10c). The seal (11) is provided without forming a gap (G) between the bottom wall and the outer wall, and is extruded with a final cross-sectional shape that does not require venting. Car body side weather strip.   It is attached to the flange (4) formed along the door opening edge of the automobile body (2), and is attached to the mounting base (10) having a substantially U-shaped cross section and assembled to the flange, and the door sash (3a) is elastic. A body-side weather strip having a hollow seal portion (20) in contact with the mounting base portion, in which a resin core material (14) is embedded and pressed from its inner wall (10b) to the indoor side surface of the flange portion An inner lip (12) that protrudes, an outer lip (13) that presses against the outer surface of the flange portion from the outer wall (10c), and an outer lip (13) that protrudes from the corner of the bottom wall and the outer wall. Sponge seal (11) elastically contacting the tip of the part is provided without forming a gap (G) between the bottom wall and the outer wall, and is extruded with a final cross-sectional shape that does not require venting. It is Automotive body side weather strip, characterized in that.

Images