JP2000238586A - Weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weather strip having excellent noise insulation property. SOLUTION: A weather strip 52 comprises a hollow seal part 54 for sealing between the peripheral rim of an opening/closing member provided on a car body opening part and an opening rim of the car body opening part, and a main body part 8 formed with the hollow seal part 54 attached. A degassing hole 62 is formed in the hollow seal part 54 and a projection part 64 is provided on the outer wall surface of the hollow seal part 54 for gradually approaching the main body part 8 in response to elastic deformation of the hollow seal part 54 generated by the contact of the opening/closing member 4 so as to cover the degassing hole 62 opening. Accordingly, since the degassing hole 62 opening is covered by the projection part 64 when the opening/closing member 4 is contacted with the hollow seal part 54, the sound insulation property of the weather strip 52 is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weatherstrip excellent in sound insulation.

[0002]

2. Description of the Related Art A weather strip is attached to a periphery of an opening of a vehicle body on which an opening / closing member such as a door panel or a trunk lid is provided. It has been widely known that the weather strip has a main body attached to the periphery of the opening of the vehicle body and a hollow seal portion in which a hollow portion is defined by a wall.
In such a weatherstrip, when the opening / closing member closes the vehicle body opening, the hollow seal portion elastically contacts the periphery of the opening / closing member, thereby sealing between the opening / closing member and the vehicle body opening. Have been.

On the wall surface of the hollow seal portion, when the hollow seal portion elastically contacts the peripheral edge of the opening / closing member and is crushed, the closing operation of the door is deteriorated due to an increase in the air pressure in the hollow seal portion. In order to prevent this, an air vent hole for discharging the air in the hollow seal portion to the outside is provided.

[0004]

The sound passing through the hollow seal is attenuated by propagating through the wall of the hollow seal. However, since the sound passing through the air vent hole propagates in the air, the sound does not attenuate, which causes the sound insulation to deteriorate.

[0005]

According to a first aspect of the present invention, there is provided a hollow seal portion for sealing between a peripheral edge of an opening / closing member provided at a vehicle body opening and an opening edge of the vehicle body opening. In the weather strip having, the concave groove whose opening area gradually decreases along with the elastic deformation of the hollow seal portion caused by the contact of the opening / closing member is formed on the inner wall surface of the hollow seal portion along the longitudinal direction of the weather strip. The air vent hole is formed so as to penetrate the wall surface of the concave groove. Thereby, the input area of the sound passing through the air vent hole decreases with the elastic deformation of the hollow seal portion.

According to a second aspect of the present invention, in the first aspect of the present invention, when the opening / closing member is closed with respect to the vehicle body opening, the groove opening is closed. I have. Thereby, when the opening / closing member is closed,
The air vent hole is closed.

According to a third aspect of the present invention, a hollow seal portion for sealing between a peripheral edge of an opening / closing member provided at an opening of a vehicle body and an opening edge of the opening portion of the vehicle body; An air vent hole is formed in the hollow seal portion, and the main body portion is gradually formed with elastic deformation of the hollow seal portion caused by contact of the opening / closing member. And a projection that covers the opening of the air vent hole is provided on the outer wall surface of the hollow seal portion. Thereby, the input area of the sound passing through the air vent hole decreases with the elastic deformation of the hollow seal portion.

According to a fourth aspect of the present invention, in the third aspect of the present invention, when the opening / closing member is closed with respect to the vehicle body opening, the tip of the projection comes into contact with the main body. It is characterized by: Thereby, the air vent hole is shielded when the opening / closing member is closed.

According to a fifth aspect of the present invention, there is provided a weather strip having a hollow seal portion for sealing between a peripheral edge of an opening / closing member provided at a vehicle body opening and an opening edge of the vehicle body opening. The hollow seal portion has a plurality of hollow portions defined in series in the opening / closing direction of the opening / closing member, and a substantially V-shaped valley portion is formed on the outer wall surface of the hollow seal portion located between adjacent hollow portions. The air strip is formed along the longitudinal direction of the weather strip, an air vent hole communicating with the outside is connected to each of the hollow portions, and an opening of the air vent hole is formed in the valley portion. It is characterized by. Thereby, the air vent hole is shielded when the opening / closing member is closed.

According to a sixth aspect of the present invention, there is provided a hollow seal having a hollow portion defined therein for sealing between a peripheral edge of an opening / closing member provided at an opening of a vehicle body and a peripheral edge of the opening portion of the vehicle body. In the weather strip having a portion, the tongue piece pushed out of the hollow seal portion due to the elastic deformation of the hollow seal portion caused by the contact of the opening / closing member is formed by a cut through the wall surface of the hollow seal portion. It is characterized by being formed. Thus, a gap communicating with the outside is generated between the tongue piece and the hollow seal part due to the elastic deformation of the hollow seal part.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings. 1 and 2 are sectional views of a weather strip 2 according to the present invention.

The weather strip 2 is mounted on the periphery of a vehicle body opening (not shown) to which an opening / closing member 4 such as a door panel or a trunk lid is attached.

The weather strip 2 has a substantially U-shaped cross section made of solid rubber having a reinforcing core 6 embedded therein.
It has a main body portion 8 having a V-shape, and a hollow seal portion 10 having a substantially circular cross section made of sponge rubber attached to a vehicle outer leg portion 12a described later.

The main body 8 has a pair of legs 12a and 12b facing each other and a top 14 connecting the pair of legs 12a and 12b.
A plurality of flange holding lips 16 are provided on the inner surface of 12b so as to sandwich a flange formed in a vehicle body opening (not shown). A tongue-shaped external lip 18 extends from the inner edge of the top portion 14 toward the outer periphery of the vehicle body opening, that is, to the left in FIG.

The hollow seal portion 10 has a hollow portion 22 defined therein by a wall portion 20.

The hollow seal portion 10 has a substantially U-shaped concave groove 24 which is continuous in the longitudinal direction of the weather strip 2, that is, in the direction perpendicular to the plane of FIG.

The concave groove 24 has an opening width and an opening depth set to predetermined lengths, and the wall portion 20 which is bent by the elastic deformation of the hollow seal portion 10 caused by the contact of the opening / closing member 4. Is formed on the inner wall surface of the bent portion 26a on the outer peripheral side of the vehicle body opening.

Air vent holes 30 are formed in the bottom wall 28 of the concave groove 24 at predetermined intervals along the longitudinal direction of the weather strip 2.

The sound entering the hollow seal 10 is attenuated by propagating through the wall 20 of the hollow seal 10. That is, the sound passing through the air vent hole 30 of the hollow seal portion 10 propagates in the air and is not attenuated, which causes the sound insulation of the weather strip 2 to be reduced.

In the weather strip 2 configured as described above, when the opening / closing member 4 abuts on the hollow seal portion 10, the elastic seal of the hollow seal portion 10 causes the recess 24 to form the weather strip 2. The opening edge portions 32 facing each other along the longitudinal direction approach each other, and the opening area of the concave groove 24 gradually decreases. Then, when the opening / closing member 4 is in the closed state, as shown in FIG. 2, the opening peripheral portions 32 come into contact with each other, and the opening of the concave groove 24 is closed.

That is, when the opening / closing member 4 is closed, the air vent hole 30 is closed, so that the inside of the air vent hole 30 propagates from the outside to the hollow portion 22 or from the hollow portion 22 to the outside. No sound is generated, and the sound insulation of the weather strip 2 can be improved.

Since the air vent hole 30 communicates with the outside until the opening / closing member 4 is closed, the hollow seal portion 10 is crushed by the contact of the opening / closing member 4. Even if the volume of the hollow portion 22 decreases, the air in the hollow portion 22 is discharged to the outside,
It is possible to prevent the operability of closing the opening / closing member 4 from being deteriorated due to an increase in the air pressure in the hollow portion 22.

Further, even if the concave groove 24 is formed in the bent portion 26b on the inner peripheral side of the vehicle body opening, the opening of the concave groove 24 can be closed when the opening / closing member 4 is closed. In this case, the appearance of the external appearance is improved because the air vent hole 30 provided in the concave groove 24 is located in a place where it is difficult to see from the outside.

The opening of the groove 24 does not necessarily have to be closed when the opening / closing member 4 is closed, and the opening of the groove 24 gradually increases with the elastic deformation of the hollow seal portion 10 caused by the contact of the opening / closing member 4. Even if the opening area of the opening decreases, the sound input area can be reduced,
The sound insulation of the weather strip 2 can be improved. That is, the concave groove 24 may be formed in the inner wall surface near the bent portion 26 of the wall portion 20, and the air vent hole 30 may be formed in the bottom wall 28 of the concave groove 24.

By appropriately setting the opening width and depth of the groove 24, even if the groove 24 is formed at a position other than the inner wall surface of the bent portion 26, the groove is not closed when the opening / closing member 4 is closed. 24
The opening can be closed.

Hereinafter, other embodiments will be sequentially described with reference to the drawings. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

FIGS. 3 and 4 show a second embodiment of the present invention.

The weather strip 34 of the second embodiment
5, the hollow seal portion 36 made of sponge rubber has a substantially rhombic cross section. The hollow seal portion 36 has bent portions 38a and 38b, and the base ends 40 and 40 are connected to the main body portion 8.
A pair of walls 42a and 42b having a substantially rectangular cross section connected to the vehicle outer leg portion 12a, and a hollow portion 44 is defined inside. The leading end of the vehicle body opening outer peripheral side wall portion 42a located on the left side in FIG. 3 is connected to a wall surface near the leading end of the vehicle body opening inner peripheral side wall portion 42b located on the right side in FIG. The tip of 42b protrudes toward the outside of the vehicle.

A concave groove 46 having a substantially circular cross section is formed in the inner wall surface of the bent portion 38b of the inner peripheral side wall portion 42b of the vehicle body opening along the longitudinal direction of the weather strip 34. Air vent holes 48 are formed at predetermined intervals along the longitudinal direction of the weather strip 34 on the inner wall surface of the concave groove 46 on the inner peripheral side of the vehicle body opening, that is, the right wall surface in FIG.

In the configuration of the second embodiment,
When the opening / closing member 4 comes into contact with the tip of the inner peripheral side wall portion 42b of the body opening of the hollow seal portion 36, the hollow seal portion 36
As shown in FIG. 4, the bent portions 38 b of the inner peripheral side wall portion 42 b of the vehicle body opening and the bent portions 38 a of the outer peripheral side wall portion 42 a of the vehicle body opening are crushed so as to have smaller internal angles.

Then, with the elastic deformation, the concave groove 4
When the opening peripheral portions 50 of the opening 6 are close to each other and the opening / closing member 4 is in the closed state, the opening peripheral edges 50 are in contact with each other, and the opening of the concave groove 46 is closed.

Therefore, the air vent hole 48 is closed, and the sound insulation of the weather strip 34 can be improved.

Since the concave groove 46 is formed in the bent portion 38b, the rigidity of the bent portion 38b is reduced, and the hollow seal portion 36 is elastically deformed when the opening / closing member 4 abuts. This bent part 3
8b, the opening of the groove 46 can be reliably closed.

The concave groove 46 and the air vent hole 48 are formed as shown in FIG.
Also, it may be formed on the left bent portion 38a in FIG.

FIGS. 5 and 6 show a third embodiment of the present invention.

The weather strip 52 of the third embodiment
In the figure, a hollow seal portion 54 made of sponge rubber is formed on the vehicle outer leg portion 12a of the body portion 8. The hollow seal portion 54 has an upright wall 56 whose base end is connected so as to be substantially perpendicular to the vehicle outer leg portion 12a, one end connected to the upright wall 56 tip, and the other end connected to the upright wall 56. The outer side leg portion 12a on the outer side of the vehicle body opening portion from the connection portion with the outer side leg portion 12a, ie, the right side in FIG.
, And a curved wall 58 having a substantially arc-shaped cross section. The curved wall 58 once protrudes from the connection portion with the upright wall 56 toward the inner peripheral side of the vehicle body opening. The curved wall 58, the upright wall 56, and the vehicle outer leg 12 a form a hollow portion 60. Is defined.

Air vent holes 62 are formed through the upright wall 56 at predetermined intervals in the longitudinal direction of the weather strip 52, that is, in the direction perpendicular to the plane of FIG.

The outer peripheral surface of the hollow seal portion 54 which projects from the connection portion with the upright wall 56 toward the inner peripheral side of the vehicle body opening portion and faces the outer leg portion 12a,
A projection 64 extending toward the vehicle outer leg portion 12a is formed continuously in the longitudinal direction of the weather strip 52.

A notch 66 along the longitudinal direction of the weather strip 52 is provided on the inner wall surface of the hollow seal portion 54 located between the protrusion 64 and the air vent hole 62.
Are formed.

Nylon fibers 68 having a fine diameter are planted on the outer surface of the main body 8 from the connection with the upright wall 56 to the outer lip 18 via the top 14.

In the third embodiment constructed as described above, the opening / closing member 4 abuts against the hollow seal portion 54, and when the hollow seal portion 54 is crushed, the protrusion 64
Is gradually approached to the vehicle outer leg portion 12a of the main body portion 8 so that the tip of the main body portion 8 covers the opening of the air vent hole 62. When the opening / closing member 4 is in the closed state, as shown in FIG. 6, the tip of the projection 64 abuts on the outer leg 12a, so that the opening of the air vent hole 62 is shielded from the outside. .

Therefore, the sound propagating from the outside to the hollow portion 60 or from the hollow portion 60 to the outside in the air vent hole 62 always propagates through the projecting portion 64. Can be improved in sound insulation.

The protrusion 64 and the air vent hole 6
By providing the notch 66 on the inner wall surface of the hollow seal portion 54 between the opening and the second seal member 2, the rigidity of this portion is reduced. The curved wall 58 located on the circumferential side is easily elastically deformed so as to gradually approach the vehicle outer leg portion 12a of the main body portion 8. Therefore, when the opening / closing member 4 is in the closed state, the protrusion 64 is securely connected to the outer leg 1.
2a, so that the sound insulation of the weather strip 52 can be reliably exhibited.

Until the opening / closing member 4 is closed, the tip of the projection 64 does not abut the outer leg 12a, so that the opening / closing member 4 crushes the hollow seal portion 54. Thus, even if the volume in the hollow portion 60 decreases, air can be discharged to the outside via the air vent hole 62. Therefore, the hollow seal portion 54
Can be prevented from becoming high and the operability of closing the opening / closing member 4 is deteriorated.

The projection 64 does not necessarily have to contact the outer leg 12a when the opening / closing member 4 is closed, but it does not necessarily accompany the elastic deformation of the hollow seal portion 54 caused by the contact of the opening / closing member 4. Even if the gap between the protrusion 64 and the outer leg 12a is gradually reduced, the sound input area can be reduced, and the sound insulation of the weatherstrip 52 can be improved.

In the third embodiment, the air vent holes 6
The upright wall 56 on which the second wall 2 is formed is located on the inner peripheral side of the curved wall 58 at the vehicle body opening, but the positional relationship between the upright wall 56 and the curved wall 58 is reversed, and the upright wall 56 is The hollow seal portion 54 can be formed so as to be located on the outer peripheral side of the opening. In this case, the appearance of the external appearance is improved because the air vent hole 62 is located in a place where it is difficult to see from the outside.

FIGS. 7 and 8 show a fourth embodiment of the present invention.

The weatherstrip 70 of the fourth embodiment
, The hollow seal portion 72 has a substantially circular cross section and a wall portion 76 made of sponge rubber having a hollow portion 74 defined therein.
And a support wall 78 made of solid rubber protruding substantially perpendicularly from the wall portion 76. The support wall 78 is connected to the outer surface of the outer leg portion 12a of the main body portion 8 so as to be substantially orthogonal to the outer surface. . The support wall 78 supports the weatherstrip 70.
Are continuous in the longitudinal direction.

The weather strip 7 is provided on the inner wall surface of the hollow seal portion 72 where the support wall 78 protrudes.
A notch 80 having a substantially U-shaped cross section is formed along the longitudinal direction of the zero.

The outer peripheral surface of the hollow seal portion 72 facing the outer leg portion 12a on the inner peripheral side of the vehicle body opening with respect to the support wall 78, that is, on the left side in FIG.
An air vent hole 82 is formed therethrough.

The outer side of the opening of the vehicle body of the air vent hole 82,
That is, on the left side in FIG. 7, a projection 84 protruding toward the outer leg 12a is provided on the outer peripheral surface of the hollow seal portion 72 facing the outer leg 12a. A fine diameter nylon fiber 68 is implanted on the outer surface of the portion 8 from the connection portion with the support wall 78 to the outer lip 18 via the top portion 14.

In the fourth embodiment constructed as described above, when the opening / closing member 4 comes into contact with the hollow seal portion 72 and the hollow seal portion 72 is crushed, the protrusion 84
Of the main body 8 gradually approaches the vehicle outer leg 12a. Then, when the opening / closing member 4 is in the closed state, as shown in FIG.
By abutting on 2a, the opening of the air vent hole 82 is shielded from the outside.

Therefore, the sound propagating from the outside to the hollow portion 74 or from the hollow portion 74 to the outside in the air vent hole 82 always propagates through the protrusion 84, so that the weather strip 70 Can be improved in sound insulation.

Further, the provision of the notch 80 allows the outer leg portion 12
Since the wall portion 76 of the hollow seal portion 72 opposing the a is elastically deformed so as to be close to the vehicle outer leg portion 12a, the protrusion portion 84 can be reliably brought into contact with the main body portion 8, The sound insulation of the weather strip 70 can be reliably exhibited.

FIGS. 9 and 10 show a fifth embodiment of the present invention.

The weather strip 86 of the fifth embodiment
The hollow seal portion 87 made of sponge rubber is formed on the vehicle outer leg portion 12a of the main body portion 8. The hollow seal portion 87 has an internal wall 88 inside which is substantially parallel to the vehicle outer leg portion 12a. The inner wall 88 defines a first hollow portion 90 and a second hollow portion 92 that are arranged in series in the opening and closing direction of the opening and closing member 4 inside the hollow seal portion 87.

At the portion where the inner wall 88 is connected, the outer wall surface of the hollow seal portion 87 has valley portions 94a, 94b having a substantially V-shaped cross-section that is convex toward the inside of the hollow seal portion 87. Are formed. This valley 94
The a and 94b are formed continuously in the longitudinal direction of the weather strip 86.

A notch 96 is formed on the outer wall surface of the hollow seal portion 87, which is the bottom of the valley portion 94a on the outer peripheral side of the vehicle body opening, in the longitudinal direction of the weather strip 86.

Further, the inner side of the valley portion 94a, that is, the outer wall surface 98a on the lower side in FIG. 9, communicates with the first hollow portion 90 at predetermined intervals along the longitudinal direction of the weather strip 86. One air vent hole 100 is formed. The weather strip 86 is provided on the outside of the valley portion 94a, that is, on the outer wall surface 98b on the upper side in FIG.
A second air vent hole 102 communicating with the second hollow portion 92 is formed along the longitudinal direction of the first air vent hole so as to face the first air vent hole 100.

In the fifth embodiment thus constructed, when the opening / closing member 4 comes into contact with the hollow seal portion 87,
With the elastic deformation of the hollow seal portion 87, the outer wall surfaces 98a, 98 of the hollow seal portion 87 facing each other at the valley portion 94a.
b gradually approaches.

When the opening / closing member 4 is in the closed state, as shown in FIG. 10, the outer wall surfaces 98a and 98b of the hollow seal portion 87 facing each other at the valley portion 94a abut each other, and the first air vent hole is formed. The opening 100 and the opening of the second air vent hole 102 overlap.

That is, when the opening / closing member 4 is closed, the first air vent hole 100 and the second air vent hole 102
Since it does not have an opening that is open to the outside and is substantially closed to the outside, the sound insulation of the weather strip 86 can be improved.

The opening of the first air vent hole 100 and the opening of the second air vent hole 102 can be formed so as not to overlap each other when the opening / closing member 4 is in the closed state. In this case, since the opening of the first air vent hole 100 abuts on the outer wall surface 98b and is closed, and the opening of the second air vent hole 102 abuts on the outer wall surface 98a and is closed, the sound insulation of the weather strip 86 can be improved.

FIGS. 11 to 14 show a sixth embodiment of the present invention.

The weather strip 10 of the sixth embodiment
In 4, a hollow seal portion 106 made of sponge rubber is formed on the vehicle outer leg portion 12 a of the main body 8. As shown in FIG. 11, a substantially C-shaped cut 108 penetrating through the hollow seal portion 106 is formed on the outer wall surface of the hollow seal portion 106 near the vehicle outer leg portion 12a on the inner peripheral side of the vehicle body opening. The notch 108 forms the tongue piece 110. Notch 108
, The base end 111 of the tongue piece 110 continuous with the hollow seal portion 106 faces the opening direction side of the opening / closing member 4, that is, the upper side in FIG.

The cut 108 is formed by the tongue piece 110
The outer surface area is tapered so as to be larger than the inner surface area of the tongue piece 110, and the outer peripheral surface 112 of the tongue piece 110 is obliquely inclined.

The tongue pieces 110 are provided at predetermined intervals along the longitudinal direction of the weather strip 104.

In the sixth embodiment constructed as described above, as shown in FIGS. 13 and 14, when the hollow seal portion 106 is crushed by the contact of the opening / closing member 4, the elastic deformation causes The tongue piece 110 is pushed outward, and a gap 114 is formed between the periphery of the tongue piece 110 and the hollow seal part 106.

The air in the hollow seal portion 106 is discharged to the outside by the gap 114. That is, by discharging air using the gap 114,
The sound input area can be made extremely small, and the sound insulation of the weatherstrip 104 can be improved.

The surface area outside the tongue piece 110 is:
Since the side surface of the tongue piece 110 is tapered so as to be larger than the surface area inside the tongue piece 110, the opening / closing member 4 separates in the opening direction from the state in contact with the hollow seal portion 106, and When the tongue piece 110 pushed out of the seal portion 106 returns to the original state, it can be reliably prevented from being pushed inward.

The cut 108 can be made perpendicular to the outer wall surface of the hollow seal portion 106.

The cut 108 is not limited to a substantially C-shape. For example, as shown in FIG.
It may be formed in a substantially U shape, and may be formed in a V shape or the like.

The tongue piece portion 110 may be formed on the wall surface of the hollow seal portion 106 on the vehicle outer leg portion 12a side of the main body portion 8 from the wall surface which becomes a bent portion due to elastic deformation caused by the contact of the opening / closing member 4. Even if the base end 111 is formed so as to face a place other than the opening direction side of the opening / closing member 4, when the opening / closing member 4 is closed, the tongue piece 110 is pushed outward and the periphery of the tongue piece 110 is hollow. Although a gap 114 can be formed between the base member 111 and the seal portion 106, the base end 111 is preferably formed to face the opening / closing direction of the opening / closing member 4.

The weather strip according to the present invention has the following features.
It is not limited to the one attached to the opening of the vehicle body, but may be attached to the opening / closing member 4 side by appropriately setting the shape of the main body 8.

[0075]

According to the first aspect of the present invention, since the input area of the sound passing through the air vent hole decreases with the elastic deformation of the hollow seal portion, the sound insulation of the weather strip can be improved. .

According to the second aspect of the invention, when the opening / closing member is closed, the air vent hole is substantially closed, so that the sound insulation of the weather strip can be further improved.

According to the third aspect of the present invention, the elastic deformation of the hollow seal reduces the gap between the projection and the main body, so that the input area of sound passing through the air vent hole decreases. The sound insulation of the weather strip can be improved.

According to the fourth aspect of the invention, when the opening / closing member is closed, the tip of the projection comes into contact with the main body, and the air vent hole is shielded, so that the sound insulation of the weather strip can be improved.

According to the fifth aspect of the present invention, when the opening / closing member is closed, the wall surfaces of the valleys are in contact with each other and the air vent hole is shielded, so that the sound insulation of the weather strip can be improved.

According to the sixth aspect of the present invention, the air in the hollow seal portion is externally discharged from the minute gap communicating with the outside between the tongue piece and the hollow seal portion along with the elastic deformation of the hollow seal portion. Since it can be discharged, the sound insulation of the weather strip can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a weather strip according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the weather strip according to the first embodiment of the present invention when the opening / closing member is closed.

FIG. 3 is a cross-sectional view of a weather strip according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a weather strip according to a second embodiment of the present invention when the opening / closing member is closed.

FIG. 5 is a sectional view of a weather strip according to a third embodiment of the present invention.

FIG. 6 is a cross-sectional view of a weather strip according to a third embodiment of the present invention when the opening / closing member is closed.

FIG. 7 is a cross-sectional view of a weather strip according to a fourth embodiment of the present invention.

FIG. 8 is a sectional view of a weather strip according to a fourth embodiment of the present invention when the opening / closing member is closed.

FIG. 9 is a sectional view of a weather strip according to a fifth embodiment of the present invention.

FIG. 10 is a sectional view of a weather strip according to a fifth embodiment of the present invention when the opening / closing member is closed.

FIG. 11 is a perspective view of a weather strip according to a sixth embodiment of the present invention.

FIG. 12 is a sectional view of a weather strip according to a sixth embodiment of the present invention.

FIG. 13 is a cross-sectional view of a weather strip according to a sixth embodiment of the present invention when the opening / closing member is closed.

FIG. 14 is an enlarged view of a portion surrounded by a broken line A in FIG.

FIG. 15 is a front view showing a modified example of the cut in the sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 ... Opening / closing member 8 ... Main body part 52 ... Weather strip 54 ... Hollow seal part 62 ... Air vent hole 64 ... Projection part

Claims (6)

[Claims] 1. A weather strip having a hollow seal portion for sealing between a peripheral edge of an opening / closing member provided in a vehicle body opening and an opening edge of the vehicle body opening, wherein the hollow formed by the contact of the opening / closing member. A concave groove whose opening area gradually decreases with elastic deformation of the seal portion is formed on the inner wall surface of the hollow seal portion along the longitudinal direction of the weather strip, and an air vent hole is formed through the wall surface of the concave groove. A weatherstrip characterized by being made. 2. The weather strip according to claim 1, wherein when the opening / closing member is closed with respect to the vehicle body opening, the groove opening is closed. 3. A hollow seal portion for sealing between a peripheral edge of an opening / closing member provided at the vehicle body opening and an opening edge of the vehicle body opening portion, and a main body portion having the hollow seal portion attached thereto. In the weather strip, an air vent hole is formed in the hollow seal portion, and the air vent hole is gradually approached to the main body portion along with elastic deformation of the hollow seal portion caused by contact of the opening / closing member, and covers the air vent hole opening. A weather strip, wherein a projection is provided on an outer wall surface of the hollow seal portion. 4. The weatherstrip according to claim 3, wherein when the opening / closing member is closed with respect to the vehicle body opening, the tip of the projection contacts the main body. 5. A weather strip having a hollow seal portion for sealing between a peripheral edge of an opening / closing member provided in a vehicle body opening and an opening edge of the vehicle body opening, wherein the hollow seal portion opens and closes the opening / closing member. A plurality of hollow portions defined in series in the direction, a substantially V-shaped valley is formed on the outer wall surface of the hollow seal portion located between the hollow portions adjacent to each other along the longitudinal direction of the weather strip. A weather strip, wherein each of the hollow portions is formed with an air vent hole communicating with the outside, and an opening of the air vent hole is formed in the valley portion. 6. A weatherstrip having a hollow seal portion in which a hollow portion is defined inside for sealing between a peripheral edge of an opening / closing member provided in a vehicle body opening and a peripheral edge of the vehicle body opening. A tongue piece pushed out of the hollow seal part due to elastic deformation of the hollow seal part caused by contact of the hollow seal part is formed by a cut through a wall surface of the hollow seal part. strip.