JP2023164262A - Weather strip of automobile door - Google Patents

Abstract

To provide a weather strip of an automobile door that can improve sound insulation and door closing performance and prevent a cutting residue from occurring.SOLUTION: A weather strip of an automobile door comprises a mounting base part 21 that is mounted on an automobile door 100, and a hollow seal part 22, formed integrally with the mounting base part 21, which elastically contacts a body 200 when the door is closed. The hollow seal part 22 is constituted of an outer hollow wall 22A swelling and curving toward outside of an automobile, an inner hollow wall 22B swelling and curving toward inside of the automobile, a top part hollow wall 22C and a connection hollow wall 22D. An air vent hole H for venting internal air to the outside is arranged in the hollow seal part 22. A sponge layer 30 which is lower in specific gravity than the outer hollow wall 22A, the inner hollow wall 22B, the top part hollow wall 22C and the connection hollow wall 22D is arranged at a site other than a site where the air vent hole H is formed, on an inner peripheral surface of the hollow seal part 22.SELECTED DRAWING: Figure 1

Description

The present invention relates to an automobile door weather strip that is attached to an automobile door and comes into elastic contact with the body when the door is closed to seal the interior and exterior of the automobile.

As shown in FIGS. 7 and 8, an automobile door weather strip 10 is attached to the peripheral edge of an automobile door 100. The automobile door weather strip 10 comes into elastic contact with a body 200 facing the door 100 when the door 100 is closed.

As shown in FIG. 9, the automobile door weather strip 10 includes a mounting base 11 that is attached to a door 100 and a hollow seal portion 12 that is integrally molded with the mounting base 11 and makes elastic contact with the body 200. A highly foamed (low specific gravity) sponge material 13 is provided on the inner circumferential surface of the portion 12 to improve sound insulation properties (for example, Patent Document 1).

On the other hand, air vent holes H are set in the hollow seal part 12 of the automobile door weather strip 10 at intervals so as not to increase the closing force of the door 100 to vent air from the inside of the hollow seal part 12 to the outside. (For example, Patent Document 2), and it is known to set a drain hole S for draining water accumulated inside the hollow seal portion 12 to the outside (For example, Patent Document 3).
The air vent hole H can be provided all around the annular automobile door weather strip 10, but here, as shown in FIG. An example is shown below. The drain hole S is provided on the lower side of the door 100.

Here, if a highly foamed (low specific gravity) sponge material 13 is provided on the inner peripheral surface of the hollow seal part 12 as in the automobile door weather strip 10 shown in FIG. 9, the compressive load of the hollow seal part 12 will increase. Therefore, it is desirable to set the air vent hole H in the hollow seal part 12, but if the hole is made with a drill (for example, Patent Document 2), there is a problem that chips remain in the hollow seal part 12. If cut debris remains, it will take a considerable amount of time to remove it, reducing work efficiency.
Furthermore, when a hole is drilled in the area where the highly foamed (low specific gravity) sponge material 13 is provided on the inner circumferential surface of the hollow seal portion 12, the portion of the highly foamed (low specific gravity) sponge material 13 has a normal specific gravity. Because it is softer than the sponge material 13 of A problem occurs in that it becomes difficult to open a perfectly circular hole.

Japanese Patent Application Publication No. 2004-58819 Special Publication No. 7-8637 JP 2021-46099 Publication

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a door weather strip for an automobile that can improve sound insulation and door closing performance, prevent the generation of cutting chips, and stabilize the hole shape into a perfect circle. .

In order to achieve the above object, the present invention includes a mounting base (21) that is attached to an automobile door (100), and a body (200) that is integrally molded with the mounting base (21) and that is attached to the body (200) when the door (100) is closed. The hollow seal part (22) has an outer hollow wall (22A) that bulges and curves toward the outside of the vehicle, and an inner hollow wall that bulges and curves toward the inside of the vehicle. a wall (22B), a top hollow wall (22C) connecting the distal ends of the outer hollow wall (22A) and the inner hollow wall (22B), and the outer hollow wall (22A) and the inner hollow wall (22B). An automobile door weather strip (20) consisting of a connecting hollow wall (22D) that connects the base side of the door, and having an air bleed hole (H) in the hollow seal part (22) for venting the air inside to the outside. And,
The inner circumferential surface of the hollow seal part (22) has a lower specific gravity than the outer hollow wall (22A), the inner hollow wall (22B), the top hollow wall (22C), and the connecting hollow wall (22D). It is characterized in that the sponge layer (30) is set apart from the part where the air vent hole (H) is set.

Further, the present invention provides that the air vent hole (H) is set in a portion of the inner hollow wall (22B) closer to the connecting hollow wall (22D),
The sponge layer (30) is provided in a portion of the outer hollow wall (22A), the top hollow wall (22C), and the inner hollow wall (22B) closer to the top hollow wall (22C). .

The present invention also provides a mounting base (21) that is attached to an automobile door (100), and a hollow seal part (22) that is integrally formed with the mounting base (21) and comes into elastic contact with the body (200) when the door (100) is closed. ), and the hollow seal part (22) has an outer hollow wall (22A) that is bulged and curved toward the outside of the vehicle, an inner hollow wall (22B) that is bulged and curved toward the inside of the vehicle, and A top hollow wall (22C) that connects the hollow wall (22A) and the tip side of the inner hollow wall (22B), and a connecting hollow that connects the base side of the outer hollow wall (22A) and the inner hollow wall (22B). Consisting of a wall (22D), the hollow seal portion (22) is provided with an air vent hole (H) for discharging the inner air to the outside and a water vent hole (S) for discharging the water accumulated inside to the outside. An automobile door weather strip made of
The inner circumferential surface of the hollow seal part (22) has a lower specific gravity than the outer hollow wall (22A), the inner hollow wall (22B), the top hollow wall (22C), and the connecting hollow wall (22D). It is characterized in that the sponge layer (30) is set apart from the portion where the air vent hole (H) and the water drain hole (S) are set.

Further, in the present invention, the air vent hole (H) is set in a portion of the inner hollow wall (22B) closer to the connecting hollow wall (22D), and the water vent hole (S) is set in a portion of the inner hollow wall (22B) that is closer to the connecting hollow wall (22D). (22A) near the top hollow wall (22C),
The sponge layer (30) is provided in a portion of the outer hollow wall (22A) closer to the connecting hollow wall (22D) and in a portion between the air vent hole (H) and the water drain hole (S). It is characterized by

Further, the present invention is characterized in that the thickness of the sponge layer (30) gradually changes and becomes thinner as it approaches the air vent hole (H) or the water drain hole (S).

Note that symbols in parentheses indicate corresponding elements or matters described in the drawings and the detailed description described below.

According to the automobile door weather strip of the present invention, a sponge having a specific gravity lower than that of the outer hollow wall, inner hollow wall, top hollow wall, and connecting hollow wall that constitute the hollow seal portion is provided on the inner circumferential surface of the hollow seal portion. The layer improves sound insulation performance.
Moreover, the sponge layer is not set all the way around the inner peripheral surface of the hollow seal part, but is set outside the area where the air vent hole is set, so the increase in compressive load is suppressed and the door closeability is deteriorated. is suppressed. In addition, even if the air bleed hole is drilled with a drill, there is no sponge layer on the inner periphery, so there will be no cutting chips, and we can provide products with good hole shapes (automobile door weather strips). can do. Further, there is no need to remove the cut chips remaining in the hollow seal portion.

Further, according to the present invention, the air vent hole is set in the part of the inner hollow wall closer to the connecting hollow wall, and the sponge layer is set in the outer hollow wall, the top hollow wall, and the part of the inner hollow wall closer to the top hollow wall. Since the sponge layer is not provided on the connecting hollow wall, an increase in compressive load is further suppressed and door closing performance is improved. In addition, if the sponge layer is set on the connecting hollow wall, the tip of the drill may hit the sponge on the inner circumferential side of the connecting hollow wall when drilling the air vent hole, and cut chips may be generated. This can be avoided by not setting it to .

Further, according to the present invention, in the hollow seal portion provided with the water drain hole in addition to the air vent hole, the inner peripheral surface of the hollow seal portion includes an outer hollow wall, an inner hollow wall, a top hollow wall, and a connecting hollow wall. Since the sponge layer with a specific gravity lower than that of the sponge layer is set apart from the portion where the air vent hole and the water drain hole are set, there will be no cutting chips when drilling the air vent hole and the water drain hole. Furthermore, both sound insulation and door closing performance can be improved.
The air vent hole is set in the part of the inner hollow wall closer to the connecting hollow wall, and the water vent hole is set in the part closer to the top hollow wall of the outer hollow wall, and the sponge layer is placed in the part of the outer hollow wall closer to the connecting hollow wall. It is more preferable to set it in the closer part and the part between the air vent hole and the water drain hole.

Further, according to the present invention, the thickness of the sponge layer is set so that it gradually changes and becomes thinner as it approaches the air vent hole or the water drain hole, compared to a case where the sponge layer suddenly disappears without changing gradually. Therefore, during extrusion molding of an automobile door weather strip, the occurrence of streaks, grooves, etc. on the outer surface of the hollow seal portion is suppressed, resulting in a good appearance. Further, since the compressive load of the hollow seal portion is prevented from changing suddenly, a good sealing function can be exhibited.

FIG. 9 is an enlarged sectional view taken along the line BB in FIG. 8, showing an automobile door weather strip according to an embodiment of the present invention. FIG. 9 is an enlarged cross-sectional view taken along the line CC in FIG. 8, showing an automobile door weather strip according to an embodiment of the present invention. FIG. 9 is an enlarged sectional view taken along the line BB in FIG. 8, showing a state in which the automobile door weather strip according to the embodiment of the present invention is in elastic contact with the door. 9 is an enlarged sectional view taken along the line BB in FIG. 8, showing another automobile door weather strip according to an embodiment of the present invention. FIG. 9 is an enlarged sectional view taken along the line BB in FIG. 8, showing another automobile door weather strip according to an embodiment of the present invention. FIG. 9 is an enlarged sectional view taken along the line BB in FIG. 8, showing another automobile door weather strip according to an embodiment of the present invention. FIG. FIG. 2 is an external side view of the automobile. 8 is an enlarged side view showing an automobile door weather strip attached to the automobile shown in FIG. 7. FIG. FIG. 9 is an enlarged sectional view taken along the line AA in FIG. 8 showing a conventional automobile door weather strip. 9 is an enlarged sectional view taken along the line BB in FIG. 8, showing another automobile door weather strip according to an embodiment of the present invention. FIG. FIG. 3 is an enlarged cross-sectional view showing another automobile door weather strip according to an embodiment of the present invention when the door is open. FIG. 12 is an enlarged sectional view showing the automobile door weather strip shown in FIG. 11 in a state when the door is closed.

An automobile door weather strip 20 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 and FIGS. 7 and 8. Note that the same parts as those shown in the prior art are given the same reference numerals.

This automobile door weather strip 20 includes a mounting base 21 that is attached along the circumference of an automobile door 100 (front door in this case), and is integrally molded on the inside of the vehicle of the mounting base 21, so that when the door 100 is closed, the It has a hollow seal portion 22 that comes into elastic contact with the body 200 of the automobile facing the vehicle 100 to seal the interior and exterior of the vehicle. Further, lip parts 23 and 24 are provided on the outside of the vehicle of the mounting base 21 and the hollow seal part 22 to make elastic contact with the door 100 side, and between the mounting base 21 and the hollow seal part 22, the automobile door weather strip 20 is attached to the door. A hollow portion 25 is formed for accommodating the head of a clip (not shown) for attachment to 100.
In this embodiment, the inside of the vehicle means the side of the body 200 that faces the door 100 when the door 100 is closed, and the outside of the vehicle means the opposite side.

As shown in FIG. 8, the automobile door weather strip 20 is formed by molding and connecting extrusion molded products at the corners to form an annular shape (not shown), and corresponds to the front side, rear side, and lower part of the door 100. Air vent holes H (indicated by black circles in FIG. 8) are set at predetermined intervals (here, intervals of about 100 mm) to vent air from the inside to the outside of the hollow seal portion 22. There is. Note that the air vent hole H may be set over the entire circumference of the automobile door weather strip 20.
Further, in a portion of the automobile door weather strip 20 corresponding to the lower part of the door 100, there is a drain hole S (indicated by a white circle in FIG. 8) for draining water accumulated inside the hollow seal portion 12 to the outside. A plurality of them are set at predetermined intervals (here, two at intervals of 300 mm).
The positions of the air vent hole H and the water vent hole S are shifted so that they do not overlap in the vertical direction. FIG. 1 shows a cross section of the automobile door weather strip 20 at the position of the air vent hole H, and FIG. 2 shows a cross section of the automobile door weather strip 20 at the position of the water vent hole S. Here, the diameter of the drain hole S is about 5 mm, and the diameter of the air vent hole H is smaller than the diameter of the drain hole S, which is about 3 mm.

As shown in FIG. 1, the hollow seal portion 22 includes an outer hollow wall 22A that is bulged and curved so as to protrude toward the outside of the vehicle, and an inner hollow wall 22B that is bulged and curved so as to protrude toward the inside of the vehicle. , consists of a top hollow wall 22C that connects the tip sides of the outer hollow wall 22A and the inner hollow wall 22B, and a connecting hollow wall 22D that connects the base sides of the outer hollow wall 22A and the inner hollow wall 22B, and as for the air vent hole H. , is set at a portion of the inner hollow wall 22B closer to the connecting hollow wall 22D (FIG. 1), and the drain hole S is set at a portion closer to the top hollow wall 22C of the outer hollow wall 22A (FIG. 2).

Then, a sponge layer 30 having a specific gravity lower than that of the outer hollow wall 22A, the inner hollow wall 22B, the top hollow wall 22C, and the connecting hollow wall 22D is placed on the inner circumferential surface of the hollow seal portion 22 through the air vent hole H and the water drain hole. It is set by excluding the part where S is set.
More specifically, the sponge layer 30 is composed of two parts, a first sponge layer 31 and a second sponge layer 32, and the first sponge layer 31 is formed in the outer hollow wall 22A in the cross-sectional shape of the hollow seal part 22. A portion closer to the connecting hollow wall 22D, that is, a position about half of the outer hollow wall 22A from the connecting portion between the outer hollow wall 22A and the connecting hollow wall 22D (from the connecting hollow wall 22D connected to the outer hollow wall 22A to the top hollow wall 22C) The second sponge layer 32 is set at a position approximately half the distance from The position is set from a position closer to the outer hollow wall 22A side to a position closer to the inner hollow wall 22B side. The first sponge layer 31 and the second sponge layer 32 are simultaneously extruded together with the automobile door weather strip 20.

As shown in FIG. 4, the first sponge layer 31 can be extended toward the inner hollow wall 22B so as to cover the inner peripheral surface of the connecting hollow wall 22D, but here (see FIG. 1) , no sponge layer 30 is provided from the air vent hole H to the connecting hollow wall 22D side up to the first sponge layer 31.
As shown in FIG. 4, if the first sponge layer 31 is provided so as to cover the entire inner peripheral surface of the connecting hollow wall 22D, the load on the hollow seal portion 22 will increase, and when drilling the air vent hole H, the drill There is a risk that the tip will hit the first sponge layer 31 on the inner peripheral side of the connecting hollow wall 22D and cut chips will be generated, but the first sponge layer 31 should not be set so as to cover the entire inner peripheral side of the connecting hollow wall 22D. This can be avoided with .

Further, as shown in FIG. 5, the end faces of the first sponge layer 31 and the second sponge layer 32 may be cut vertically to make the thickness of the first sponge layer 31 and the second sponge layer 32 uniform. However, here (FIG. 1), the first sponge layer 31 and the second sponge layer 32 are set so that the thickness gradually changes and becomes thinner as they approach the air vent hole H and water vent hole S. There is.
According to this, as shown in FIG. 5, compared to the case where the first sponge layer 31 and the second sponge layer 32 suddenly disappear, the outer surface of the hollow seal portion 22 is The appearance of lines and grooves on the sides is suppressed and the appearance is good. Further, since the compressive load of the hollow seal portion 22 is prevented from changing suddenly, a good sealing function can be exhibited.

In this embodiment, the hollow seal part 22, which is composed of an outer hollow wall 22A, an inner hollow wall 22B, a top hollow wall 22C, and a connecting hollow wall 22D, is made of a sponge material with a specific gravity of 0.45 to 0.6, The sponge layer 30 (the first sponge layer 31 and the second sponge layer 32) is made of a sponge material having a specific gravity of 0.1 to 0.3, which is lower than that, to suppress an increase in the door closing force. The outer hollow wall 22A, the inner hollow wall 22B, the top hollow wall 22C, and the connecting hollow wall 22D are made of a sponge material with a specific gravity of 0.3 to 0.45, which reduces the load and reduces the door closing force. may be further reduced.

According to the automobile door weather strip 20 configured in this manner, the inner peripheral surface of the hollow seal portion 22 includes the outer hollow wall 22A, the inner hollow wall 22B, the top hollow wall 22C, and Since the sponge layer 30 (first sponge layer 31 and second sponge layer 32) having a specific gravity lower than that of the connecting hollow wall 22D is provided, sound insulation performance is improved.
Moreover, the sponge layer 30 is not set all the way around the inner peripheral surface of the hollow seal part 22 as shown in FIG. Therefore, an increase in compressive load is suppressed and deterioration of door closing performance is suppressed. In addition, even if the air vent hole H and the water vent hole S are bored, the sponge layer 30 is not present on the inner circumferential side of the hollow seal portion 22 corresponding to that position, so cut chips are less likely to be generated, and the hole shape quality is high. It is possible to provide an automobile door weather strip 20 with good quality. Moreover, since the work to remove the cut chips remaining in the hollow seal portion 22 becomes unnecessary, deterioration of work efficiency can be prevented.

In this embodiment, the sponge layer 30 is composed of two parts, the first sponge layer 31 and the second sponge layer 32, but as shown in FIG. It is also possible to remove only the portion where the air bleed hole H is set and set only the vehicle exterior sponge layer 33 on the exterior of the vehicle.
Like the first sponge layer 31 and the second sponge layer 32, the car outer sponge layer 33 has a lower specific gravity than the outer hollow wall 22A, the inner hollow wall 22B, the top hollow wall 22C, and the connecting hollow wall 22D, and has a hollow seal. In the cross-sectional shape of the portion 22, it is set at a position where it crosses the outer hollow wall 22A and the top hollow wall 22C from the connecting portion of the outer hollow wall 22A and the connecting hollow wall 22D, and is closer to the inner hollow wall 22B side from the top hollow wall 22C. . The car exterior sponge layer 33 is also extruded at the same time as the car door weather strip 20, and is set so that its thickness gradually changes and becomes thinner as it approaches the air vent hole H.

According to this, since the vehicle exterior sponge layer 33 is set apart from the part where the air vent hole H is set on the inner peripheral surface of the hollow seal part 22, an increase in compressive load is suppressed and deterioration of door closing performance is prevented. In addition, even if the air vent hole H is made, no cut scum will be generated since the sponge layer 30 is not present on the inner peripheral side of the hollow seal portion 22 corresponding to that position.

According to this, a low specific gravity sponge layer is also set in the area where the drain hole S is set by the car exterior sponge layer 33, but the drain hole S is different from the air vent hole H and generally has a number of sponge layers. The air bleed holes H are made by rotating a specially shaped drill during the manufacture of the extruded cross section of the automobile door weather strip 20, while the drain holes S are formed using a punching blade after the extruded cross section is manufactured. It is also possible to form the hole by punching it out, so even in areas where there is a soft, low-density sponge layer, it is easy to punch out the hole shape accurately, so it is easy to drill the hole just enough to remove the punched part. This is not a big problem as cut scum is unlikely to occur.

Further, in the embodiment of the present invention, an extruded cross section of the automobile door weather strip 20 fixed to the door 100 with a clip has been described as an example, but the present invention can also be applied to an extruded cross section fixed to the door 100 with double-sided tape. is possible,
It can also be applied to an extruded section for a vehicle roof that is fixed to a door sash.
Although not shown, the car exterior sponge layer 33 shown in FIG. 6 is directed toward the inside hollow wall 22B so as to cover the inner peripheral surface side of the connecting hollow wall 22D, similar to the diagram shown in FIG. 4. It may be extended.

In addition, as shown in FIG. 10, in the cross-sectional shape of the hollow seal portion 22, the car outer sponge layer 33 is applied to the outer hollow wall 22A, from the outer hollow wall 22A to this side of the top hollow wall 22C, and the outer hollow wall 22A. It may be set from the wall 22A to the front side of the connecting hollow wall 22D.
According to this, while maintaining the sound insulation effect, the load increase effect is suppressed and the deterioration of door closing performance is suppressed.

In addition, in the embodiment of the present invention, as shown in FIGS. 1 to 10, an extruded cross section of an automobile door weather strip 20 fixed to a door 100 with a clip is illustrated and explained. As shown in 12, the present invention can also be applied to an extruded section of an automobile door weather strip 20 for a vehicle roof portion fixed to a door sash 110. 11 shows a state in which the hollow seal portion 22 is in elastic contact with the body 200 when the door 100 is opened, and FIG. 12 shows a state in which the hollow seal portion 22 is in elastic contact with the body 200 when the door 100 is closed.

The automobile door weather strip 20 includes a mounting base 21, a hollow seal portion 22, two lip portions 23 and 24, and a hollow portion 25.
As shown in FIG. 11, the hollow seal portion 22 includes an outer hollow wall 22A that is bulged and curved so as to protrude toward the outside of the vehicle, and an inner hollow wall 22B that is bulged and curved so as to protrude toward the inside of the vehicle. , a top hollow wall 22C that connects the tips of the outer hollow wall 22A and the inner hollow wall 22B, a connecting hollow wall 22D that connects to the root side of the outer hollow wall 22A, and a root of the connecting hollow wall 22D and the inner hollow wall 22B. It consists of a lower hollow wall 22E that connects the two sides, and the air vent hole H is set in the lower hollow wall 22E.

A sponge layer 34 is provided on the inner peripheral surface of the inner hollow wall 22B.
By doing so, as shown in FIG. 12, while maintaining the sound insulation effect, the load increase effect is suppressed and the deterioration of the door closing performance is suppressed.

10 Automotive door weather strip 11 Mounting base 12 Hollow seal part 13 Sponge material 20 Automotive door weather strip 21 Mounting base 22 Hollow seal part 22A Outer hollow wall 22B Inner hollow wall 22C Top hollow wall 22D Connecting hollow wall 22E Lower hollow wall 23 Lip portion 24 Lip portion 25 Hollow portion 30 Sponge layer 31 First sponge layer (sponge layer)
32 Second sponge layer (sponge layer)
33 Car exterior sponge layer (sponge layer)
34 Car interior sponge layer (sponge layer)
100 Door 110 Door sash 200 Body H Air vent hole S Water drain hole

Claims (5)

It has a mounting base that is attached to an automobile door, and a hollow seal part that is integrally formed on the mounting base and comes into elastic contact with the body when the door is closed, and the hollow seal part has an outer hollow wall that bulges out and curves toward the outside of the vehicle. an inner hollow wall that bulges out and curves toward the inside of the vehicle; a top hollow wall that connects the outer hollow wall and the tip side of the inner hollow wall; and a top hollow wall that connects the base side of the outer hollow wall and the inner hollow wall. An automobile door weather strip consisting of a connecting hollow wall, and having an air vent hole set in the hollow seal portion for venting the inner air to the outside,
A sponge layer having a specific gravity lower than that of the outer hollow wall, the inner hollow wall, the top hollow wall, and the connecting hollow wall is placed on the inner circumferential surface of the hollow seal portion, and the portion where the air vent hole is set is removed. A door weather strip for an automobile, characterized in that the weather strip is set as follows. The air vent hole is set in a portion of the inner hollow wall closer to the connecting hollow wall,
2. The door weather strip for an automobile according to claim 1, wherein the sponge layer is provided on a portion of the outer hollow wall, the top hollow wall, and the inner hollow wall near the top hollow wall. It has a mounting base that is attached to an automobile door, and a hollow seal part that is integrally formed on the mounting base and comes into elastic contact with the body when the door is closed, and the hollow seal part has an outer hollow wall that bulges out and curves toward the outside of the vehicle. an inner hollow wall that bulges out and curves toward the inside of the vehicle; a top hollow wall that connects the outer hollow wall and the tip side of the inner hollow wall; and a top hollow wall that connects the base side of the outer hollow wall and the inner hollow wall. The door weather strip for an automobile consists of a connected hollow wall, and the hollow seal part is provided with an air vent hole for discharging inner air to the outside and a water drain hole for discharging water accumulated inside to the outside. hand,
The air vent hole and the water drain hole are provided with a sponge layer having a specific gravity lower than that of the outer hollow wall, the inner hollow wall, the top hollow wall, and the connecting hollow wall on the inner peripheral surface of the hollow seal part. A door weather strip for an automobile, characterized in that it is set by removing the exposed part. The air vent hole is set in a part of the inner hollow wall closer to the connecting hollow wall, and the water vent hole is set in a part of the outer hollow wall closer to the top hollow wall,
4. The automobile door weather strip according to claim 3, wherein the sponge layer is provided in a portion of the outer hollow wall near the connecting hollow wall and a portion between the air vent hole and the water vent hole. . The automobile door weather strip according to any one of claims 1 to 4,
A door weather strip for an automobile, characterized in that the thickness of the sponge layer gradually changes and becomes thinner as it approaches the air vent hole or the water vent hole.

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