JPH04238758A - Weather strip for automobile - Google Patents

Abstract

PURPOSE:To prevent a door glass from being sucked out to the outside of a room at the time of high speed running. CONSTITUTION:A weather strip 1 comprises a sash part 2 and a seal part 3 fixed to this sash part 2. The sash part 2 has a design part 21 and a mounting part 22 of shape along a body panel 810. In the design part 21, a stopper piece 211, formed along an external side upper end part of a door glass 821, is provided. In the seal part 3, a hollow seal part 313, brought into contact with an upper end part of the door glass 821, is provided. In the door glass when it is closed, an upper end part total unit is held by the stopper piece 211 and the hollow seal part 313. Even in the case that force of intending the door glass 821 sucked out to the outside of a room is applied by a coarse/dense wind pressure at the time of high speed running, sucking out of the door glass can be surely prevented.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for automobiles, and more specifically to a structure for holding a door glass by a weather strip.

0002

2. Description of the Related Art Generally, in automobiles, weather strips are attached to the periphery of doors and the like to block out water, dust, and sound. Furthermore, in recent years, automobiles often travel long distances at high speeds, and when driving at high speeds, wind pressure is unevenly distributed along the body. Therefore, external force acts on the body in areas where wind pressure is high and low. Particularly in sashless vehicles such as so-called hard-top vehicles, an external force acts to suck out the door glass toward the outside. Therefore, sashless vehicles are generally provided with a stopper to prevent the door glass from being sucked out. The weather strip in a conventional sashless vehicle includes a weather strip 91 attached to the body 81 side (see FIGS. 5 and 9),
It consists of a weather strip 92 (see FIGS. 6 and 10) attached to the door 82 side. Both weather strips 91
, 92 have connecting portions 919, 929 at their ends, respectively, as shown in FIGS. I have to. As shown in FIG. 5, the weather strip 91 is formed in a substantially U-shape and is attached to the door opening portion of the body panel 810 at a position above the belt portion. Specifically, the weather strip 91 is fixed to a body panel 810 via a retainer 94, as shown in FIG. In addition, the weather strip 91 and the retainer 94
A stopper 93 is sandwiched between the two. A resin portion 930 is formed at the tip of the stopper 93, and the door glass 821 is held between the resin portion 930 of the stopper 93 and the hollow seal portion 910 of the weather strip 91 when the door glass is closed. There is. In FIGS. 7, 8, and 10, reference numeral 99 indicates a clip for attaching the weather strip, and reference numeral 990 indicates a metal plate for supporting the clip 99. In addition, in FIGS. 9 and 10, 811 is a flange formed on the body panel 810;
Reference numeral 7 indicates a trim fitted to the flange 811, and reference numeral 96 indicates a fixing screw.

0003

[Problem to be Solved] However, in conventional automotive weather strips, as shown in FIGS. 5 and 9, only a part of the upper end of the door glass 821 is held by a stopper 93 for preventing suction. do not have. Therefore, it is not possible to reliably prevent the door glass 821 from being sucked out during high-speed driving. As a result, water leakage, wind leakage, and noise intrusion occur. In view of these conventional problems, the present invention aims to provide a weather strip for automobiles that can reliably prevent the door glass from being sucked out to the outside during high-speed driving.

0004

[Means for solving the problems] The present invention includes a molding part having a design part and a mounting part shaped along the body panel, and a seal part fixed to the molding part, and the design part is attached to the outside of the door glass. The seal part has a hollow seal part that comes into contact with the top edge of the door glass, so that when the door glass is closed, the entire top edge of the door glass is closed. A weather strip for an automobile is characterized in that it is held by the stopper piece and the hollow seal part. The most noteworthy feature of the present invention is that the stopper piece provided in the design part of the molding part,
The hollow seal part provided in the seal part holds the entire upper end of the door glass. In the present invention, it is preferable that the seal portion is formed by an upper seal portion and a lower seal portion that are integrally joined (Fig. 3
(See FIG. 4) This eliminates the need for metal plates for connection as in the past, and facilitates molding. The seal portion is shaped to follow the door opening of the body by joining the upper and lower seal portions, and is attached to the body side. It is preferable that the molding part is formed along the upper end of the door glass, and the stopper piece is formed in the design part of the molding part. Further, it is desirable to embed a core bar in the design part to firmly support the stopper piece (see FIGS. 1 and 4). The molding part is fixed to the body panel, and the seal part is fixed to the molding part. Methods for fixing the molding part to the body panel include fixing with screws and fixing with adhesive. In addition, as means for fixing the seal part to the molding part, there are two methods: providing a fitting part in the seal part and using the fitting part to fit and fix the molding part and the seal part (see Figure 1); There is a method of adhering the parts using double-sided tape. Furthermore, the seal part is also fixed by the body panel (see Figure 2).
. It is desirable to use a so-called flat core metal for the molding part. As a result, the undulating keel pattern does not appear on the surface of the designed portion, making it possible to improve the appearance of the weatherstrip. Further, it is desirable to use a so-called break core metal for the seal portion. This improves the moldability of the seal portion. In addition,
The present invention is not limited to vehicles without sashes, but can also be applied to vehicles with sashes, such as so-called sedan vehicles. For vehicles with sashes, the weather strip is fixed to the door sash.

[0005]

[Operations and Effects] In the present invention, when the door glass is raised, the upper end of the door glass comes into contact with the hollow seal portion of the seal portion, and the door glass is closed. At this time, the upper end of the door glass is held by the stopper piece provided in the design part of the molding part and the hollow seal part. When a car is driven at high speed, negative pressure is generated on the outside of the door glass, creating a force that tends to suck the door glass out to the outside. At this time, the stopper piece firmly holds the entire upper end of the door glass. Therefore, according to the present invention, it is possible to provide a weather strip for an automobile that can reliably prevent the door glass from being sucked out to the outside during high-speed driving.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An automobile weather strip according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. The weather strip 1 of this example has a design part 2 as shown in FIG.
1 and a mounting portion 22 shaped along the body panel 810, and a seal portion 3 fixed to the molding portion 2. The design portion 21 has a stopper piece 211 located outside the door glass 821 and formed along the upper end of the door glass 821. Further, the seal part 3 has a hollow seal part 313 that comes into contact with the upper end of the door glass 821, and when the door glass 821 is closed, the entire upper end of the door glass 821 is held by the stopper piece 211 and the hollow seal part 313. be done. Attachment part 2 of the molding part 2 above
As shown in the figure, 2 has a substantially L-shaped cross section along the cross section of the body panel 810. The design portion 21 is formed at the upper end of the mounting portion 22. Further, the molding part 2 includes a so-called flat core bar 29 provided extending from the design part 21 to the mounting part 22, and a covering member 28 made of rubber, synthetic resin, etc. extruded onto the surface of the flat core bar 29. The covering member 28 includes a body panel 8.
10, a plurality of lips 221 are integrally extruded to prevent water from entering. Further, the molding portion 2 is fixed to the body panel 810 with screws 96. Above stopper piece 2
11 is formed along the lower end of the design portion 21. An engagement recess 212 for fixing the seal portion 3 is formed above the stopper piece 211. As shown in FIGS. 3 and 4, the seal portion 3 consists of an upper seal portion 31 and a lower seal portion 32, each formed in a U-shape. They are integrally joined. Upper seal part 3
1 is fixed to the molding part 2 as shown in FIGS. 1, 3 and 4. The upper seal portion 31 includes an interior piece 3 having a substantially L-shaped cross section along the inner surface of the molding portion 2.
11 and a U-shaped fitting part 312 provided at the lower end of the interior piece 311, which are integrally extruded from rubber or synthetic resin. A so-called break core metal 319 is embedded in the fitting portion 312 . Furthermore, fitting feet 3120 are provided protruding from the inside of the fitting portion 312. A locking portion 315 that can be engaged with the engaging recess 212 is provided at the upper end of the interior piece 311. Further, the upper seal portion 31 is integrally formed with a hollow seal portion 313 and a seal lip 314 made of sponge material. A urethane coating containing a lubricant is applied to the outer surfaces of the hollow seal portion 313 and the seal lip 314 to reduce wear resistance and improve wear durability. Note that flocking may be applied instead of urethane coating. On the other hand, as shown in FIGS. 2 to 4, the lower seal part 32 has a hollow seal part 325 made of sponge material and a U-shaped fitting part 322.
A break core metal 329 is embedded in 2. Other than that,
This is the same as the conventional example. Since the weather strip of this example is configured as described above, it exhibits the following effects. That is, in manufacturing the weather strip 1, after embedding the flat core bar 29 and extruding the molding part 2, the molding part 2 is formed by stretch bender processing.
is molded three-dimensionally. Further, the seal portion 3 is formed by separately extruding an upper seal portion 31 and a lower seal portion 32. At this time, break core metals 319 and 329 are embedded in both seal portions 31 and 32, respectively. Further, the hollow seal portion 313 and the seal lip 314 are coated with urethane. In this way, the weather strip 1 of this example consists of the molding part 2 and the sealing part 3, so it is possible to use different materials for the molding part 2 and the sealing part 3, and to perform different surface treatments, etc. . For example, the molding part 2 can be made of a material that is easy to decorate, such as vinyl chloride, and the seal part 3 can be made of a material with good durable sealing properties, such as EPDM rubber. In this way, the weatherstrip 1 can be made to have contradictory performances if made of the same material. After extrusion molding, both seal parts 31,
The ends of 32 are joined in a mold (not shown). As a result, both the seal parts 31 and 32 are integrally joined via the joint part 33, as shown in FIGS. 3 and 4. In this way, the mold used for end treatment has a simpler structure than conventional molds. This is similar to the conventional metal plate (Fig. 7,
This is because there is no need to bury the (see FIG. 8). When assembling the weather strip 1, the molding portion 2 is first fixed to the body panel 810 with screws 96, as shown in FIGS. 1 and 4. Next, the upper seal part 31 is fixed along the molding part 2. At this time, the fitting part 312 of the upper seal part 31 is fitted to the molding part 2 and the flange 811. As a result, the lower part of the upper seal part 31, the lower part of the molding part 2, and the flange 811 are integrally fixed. Furthermore, the locking portion 315 of the upper seal portion 31 is engaged with the fitting recess 212 of the molding portion 2 . Thereby, the upper part of the upper seal part 31 can be fixed. On the other hand, when assembling the lower seal part 32, the fitting part 329 is fitted into the flange 811, as shown in FIGS. 2 and 4. As a result, the lower seal portion 32 is attached to the body panel 81.
Fixed to 0. When using the door glass 8
21, the door glass 821 tends to bend and deform the hollow seal portion 313 and seal lip 314 of the upper seal portion 31, as shown by the dashed line in FIG. However, the hollow seal portion 313
Due to the reaction force of the seal lip 314, the door glass 82
1 is extended, and the upper end of the door glass 821 moves to the position shown by the solid line. Then, the upper end of the door glass 821 comes into contact with the stopper piece 211 of the molding part 2. This contact ends the movement of the door glass 821. When the automobile is driven at high speed, negative pressure is generated on the outdoor side of the door glass 821, and an external force acts to suck the door glass 821 toward the outdoor side. However, the stopper piece 211 and the hollow seal portion 3
Since the entire upper end of the door glass 821 is firmly held between the door glass 821 and the door glass 13, the door glass 821 does not move toward the outside. In this way, according to this example, it is possible to reliably prevent the door glass 821 from being sucked out to the outside during high-speed driving. In addition, even during high-speed car washing, the design part 21 of the molding part 2 receives water pressure, so the door glass 82
Water pressure does not directly hit the upper end portion of 1 or the hollow seal portion 313 of the upper seal portion 31. Therefore, no water leaks occur.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing a state in which a weather strip for an automobile according to an embodiment is installed, and is a longitudinal sectional view taken along line A-A in FIG.
Cross-sectional view taken along the line.

FIG. 2 is a cross-sectional view showing a state in which the weather strip of the embodiment is attached, and is a cross-sectional view taken along the line BB in FIG. 4;

FIG. 3 is an enlarged perspective view of the seal portion of the embodiment.

FIG. 4 is a perspective view of an automobile body showing a mounting portion of a weather strip according to an embodiment.

FIG. 5 is a perspective view of an automobile body showing a conventional weather strip attachment site.

FIG. 6 is a perspective view of a door showing a conventional weather strip attachment location.

FIG. 7 is an enlarged perspective view of a main part of a conventional body-side weather strip.

FIG. 8 is an enlarged perspective view of essential parts of a conventional door-side weather strip.

9 is a vertical cross-sectional view showing a state in which a conventional weather strip is mounted on the body side, and is a cross-sectional view taken along the line CC in FIG. 5. FIG.

10 is a vertical cross-sectional view showing a state in which a conventional weather strip is installed on the door side, and is a cross-sectional view taken along the line DD in FIG. 5. FIG.

[Explanation of symbols]

1. ．． ．． Weather strip, 2. ．． ．． Mall part, 21
．． ．． ．． Design Department, 211. ．． ．． Stopper piece, 22. ．． ．． Mounting part, 3. ．． ．． Seal portion, 31. ．． ．． Upper seal part, 31
3. ．． ．． Hollow seal portion, 32. ．． ．． Lower seal part, 810
．． ．． ．． Body panel, 820. ．． ．． door panel, 821
．． ．． ．． door glass,

Claims (1)

[Claims] Claim 1: Consisting of a molding part having a design part and a mounting part shaped along the body panel, and a seal part fixed to the molding part, the design part is located on the outside of the door glass and attached to the door glass. It has a stopper piece formed along the top edge, and the seal part has a hollow seal part that comes into contact with the top edge of the door glass, and when the door glass is closed, the entire top edge of the door glass is connected to the stopper piece and the hollow seal part. A weather strip for an automobile, characterized in that the weather strip is held by a seal portion.