JP5829481B2 - Weather Strip - Google Patents

Description

  The present invention relates to a weather strip that is attached along a door opening of a body of an automobile and seals the inside and outside of the vehicle by elastically contacting the door when the door is closed.

As shown in FIG. 5, the weather strip 1 is attached to the body B side of the automobile along the door D opening, and when the door D is closed, the door D is elastically contacted to seal the inside and outside of the vehicle. Yes.
Such a weather strip 1 is often elastically contacted with the flat portion on the door D side, but from the relationship of vehicle design and installation accuracy, as shown in FIG. In this case, there is one that elastically contacts a protruding curved surface portion Da having a substantially U-shaped cross section that protrudes toward the vehicle interior side.

The weather strip 1 has a substantially U-shaped cross section including a vehicle outer side wall 11, a vehicle inner side wall 12 and a bottom wall 13 connecting both side walls 11, 12 inserted into a flange F provided along the opening of the door D. A mounting base 10 and a hollow seal portion 20 that is integrally formed on the vehicle outer side wall 11 of the mounting base 10 and elastically contacts the protruding curved surface portion Da of the door D when the door D is closed.
The hollow seal portion 20 includes a first hollow wall 21 bent in a substantially rectangular shape in cross section around the first bending point R1, and a second hollow wall bent in a substantially reverse character shape in cross section around the second bending point R2. 22 is connected to form a pantograph-like shape (see, for example, Patent Document 1 and Patent Document 2).
Further, on the inner side (vehicle inner side) of the vehicle outer side wall 11 of the mounting base 10, a protruding strip 15 that slides on the vehicle outer side surface of the flange F at the time of insertion is provided, and on the inner side (vehicle outer side) of the vehicle inner side wall 12, A lip portion 16 having a substantially tongue-shaped cross section that is in sliding contact with the inner surface of the flange F during insertion is provided. In addition, a decorative lip portion 17 having a substantially tongue-shaped cross section extending inward of the vehicle is provided at a connecting position between the vehicle inner side wall 12 and the bottom wall 13, and a core material 18 having a substantially U-shaped cross section is embedded in the mounting base 10. Has been.

JP 2008-174196 A JP 2010-030445 A

However, in the weather strip 1 shown in FIG. 6 and the weather strip described in Patent Document 1 and Patent Document 2, the second hollow wall 22 of the hollow seal portion 20 on the side of the seal wall that elastically contacts the door D is provided on the vehicle. Since it bulges and curves toward the outside, there is no particular problem when it comes into elastic contact with the flat portion on the door D side, but it is a protruding curved surface with a substantially U-shaped cross section that protrudes inward from the door D. In the case of elastic contact with the part Da, the tip 22a side of the second hollow wall 22 is curved so as to approach the vehicle inner side, and a triangular gap S is generated between the tip 22a of the second hollow wall 22 and the protruding curved surface part Da. When the door D is opened, there is a problem that water droplets accumulated in the triangular skies S drop indoors.
In addition, when the hollow seal portion 20 is brought into elastic contact with the protruding curved surface portion Da instead of the flat portion on the door D side, high accuracy is required for the elastic contact position. However, the surface pressure (reaction force) is abruptly reduced, resulting in poor sealing performance and water leakage, and the triangular gap S may be larger.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a weather strip that can obtain a sufficient sealing function when elastically contacting a protruding curved surface portion of a door.

In order to achieve the above object, the weather strip of the present invention is attached to the peripheral edge of the door (D) opening of the automobile body (B), and includes an outer side wall (31), an inner side wall (32), and both side walls. A mounting base (30) having a substantially U-shaped cross section composed of a bottom wall (33) connecting (31, 32) and the vehicle exterior side of the mounting base (30). A weather strip (100) comprising a hollow seal portion (40) elastically contacting a protruding curved surface portion (Da) having a substantially U-shaped cross section projecting toward
The hollow seal portion (40) has a first hollow wall (41) formed in a substantially U-shaped cross section via a first bending point (P1) and a cross section substantially reversed via a second bending point (P2). A second hollow wall (42) formed in a square shape is connected,
One end (41a) of the first hollow wall (41) is connected to a portion closer to the end of the vehicle outer side wall (31) of the mounting base (30), and one end of the second hollow wall (42) ( 42a) projects from the portion of the mounting base (30) closer to the bottom wall (33) of the vehicle outer side wall (31) toward the vehicle outer side, and is substantially parallel to the vehicle outer side wall (31) and the bottom wall (33). Connected to the projecting side,
A space between one end (42a) of the second hollow wall (42) and the second bending point (P2) is a standing wall (42X) standing toward the vehicle outer side, and the second bending point. (P2) and the other end (42b) of the second hollow wall (42) are bulged and curved inward of the hollow seal portion (40), and the protruding curved surface portion (Da) of the door (D). ) Is a sealing wall (42Y) that elastically contacts,
The other end (42b) of the second hollow wall (42) is continuous with the seal wall (42Y) and elastically contacts with the projecting curved surface portion (Da) of the door (D) together with the seal wall (42Y). Part (43) is formed,
The other end (41b) of the first hollow wall (41) is connected to the inside of the hollow seal portion (40) at the other end (42b) of the second hollow wall (42), and the protrusion (43 ) Protruding outward from the vehicle.

  In addition, the weather strip of the present invention has rigidity compared with the rest of the first hollow wall (41) from one end (41a) of the first hollow wall (41) to the first bending point (P1). It is characterized in that a part made of a material to be raised is provided or a part thickened so as to increase the rigidity as compared with other parts of the first hollow wall (41).

  In addition, the weather strip of the present invention has rigidity compared with the rest of the second hollow wall (42) from one end (42a) of the second hollow wall (42) to the second bending point (P2). It is characterized in that a part made of a material to be raised is provided, or a part thickened so as to increase the rigidity as compared with other parts of the second hollow wall (42).

In the weather strip of the present invention, the curvature radius (R) of the seal wall (42Y) of the second hollow wall (42) is set to the curvature radius of the protruding curved surface portion (Da) protruding from the door (D). It is characterized by being larger than (r).
Further, the weather strip of the present invention has the standing wall (42X) between the second bending point (P2) of the second hollow wall (42) and the other end (42b) of the second hollow wall (42). ) With an obtuse angle (θ).

  Note that symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and modes for carrying out the invention described later.

According to the weather strip of the present invention, the hollow seal portion that elastically contacts the protruding curved surface portion having a substantially U-shaped cross section projecting from the door toward the inside of the vehicle has a generally U-shaped cross section through the first bending point. A first hollow wall formed and a second hollow wall having a substantially inverted cross-sectional shape through a second bending point. The second hollow wall is inflated toward the inside of the hollow seal portion. A seal wall that is curved out and elastically contacts the protruding curved portion of the door is formed, and at the front end of the seal wall, a projection that continues from the seal wall and elastically contacts the protruding curved portion of the door together with the seal wall protrudes to the outside of the vehicle It is formed to do.
In other words, since the seal wall and the protrusion extending from it are warped toward the outside of the vehicle, when the seal wall is elastically contacted with the protruding curved surface portion of the door when the door is closed, the protruding portion is brought into contact with the protruding curved surface portion of the door. The close proximity and close contact is prevented, and the triangular gap as shown in the conventional example is prevented from occurring between the protruding portion and the protruding curved surface portion of the door.
Therefore, when the door is opened, water droplets are prevented from entering the indoor side from the outside of the protrusion.
In addition, since the seal wall bulges and curves toward the inside of the hollow seal portion, the seal wall can be made to follow the projected curved surface portion of the door without difficulty. If the radius of curvature is larger than the radius of curvature, a stable sealing function can be obtained, and it is possible to cope with some variations in installation. As a result, as shown in the conventional example, a situation in which the surface pressure (reaction force) rapidly decreases can be avoided.

Further, one end of the second hollow wall constituting the hollow seal portion is not directly connected to the bottom wall portion of the vehicle outer side wall of the mounting base portion, but from the portion of the mounting base portion near the bottom wall of the vehicle outer side wall, Projected toward the outside of the vehicle, connected to a portion that protruded toward the bottom wall and substantially parallel to the side wall of the vehicle, and the standing wall was erected from the outside toward the outside of the vehicle. Therefore, the second bending point is provided at a position close to the door side, and the first bending point of the first hollow wall is also a position close to the door side from the vehicle outer side wall of the mounting base. Is provided.
Thus, since the first and second bending points are provided at positions close to the door side even in the hollow seal portion, the first hollow wall side portion located on the vehicle outer side than the first bending point, The sealing wall and the projection, which are the part on the second hollow wall side located on the vehicle outer side from the second bending point, have a constant bending direction when elastically contacting the protruding curved surface portion of the door, and the sealing performance in a stable state Can be secured, and can cope with some variations in installation.

Further, according to the present invention, a portion made of a material having higher rigidity than that of the first hollow wall is provided from one end of the first hollow wall to the first bending point, or Since the thickened portion is provided so as to increase the rigidity as compared with the rest of the hollow wall, the rigidity on the base side of the hollow seal portion is ensured, and a more stable sealing function is obtained.
Further, according to the present invention, a portion made of a material having higher rigidity than that of the second hollow wall is provided from one end of the second hollow wall to the second bending point, or Since the thickened part is provided so as to increase the rigidity compared to other parts of the hollow wall, the rigidity on the base side of the hollow seal part is ensured and a more stable sealing function can be obtained as described above. It is done.
Further, according to the present invention, since the portion between the second bending point and the other end of the second hollow wall is formed at an obtuse angle with respect to the standing wall, the hollow portion is compared with the acute angle case. Can be increased, and the reaction force by ballistic contact can be increased.

  Although there are various shapes of the hollow seal portion, at least the hollow seal portion is in elastic contact with the protruding curved surface portion of the door and has a radius of curvature larger than the curvature radius of the protruding curved surface portion. A seal wall bulging and curved toward the side, and a projection that is provided so as to protrude outward from the vehicle continuously to the seal wall, and that is elastically contacted with the protruding curved surface portion of the door together with the seal wall. If it has a part, it can suppress that a triangular gap arises between a projection part and the protrusion curved surface part of a door, and can provide the weather strip which can respond also to some building variations.

The weather strip which concerns on embodiment of this invention is shown, and it is the AA line expanded sectional view of FIG. It is sectional drawing which shows the state which the weather strip shown in FIG. 1 contacted the door elastically. FIG. 6 shows another weather strip according to the embodiment of the present invention, and is an enlarged sectional view taken along line AA of FIG. 5. FIG. 6 is a sectional view taken along line AA in FIG. 5, showing still another weather strip according to the embodiment of the present invention. 1 is an external side view of an automobile. FIG. 9 is a sectional view taken along line AA in FIG. 5, showing a weather strip according to a conventional example. It is sectional drawing which shows the state which the weather strip shown in FIG. 6 contacted the door.

  With reference to FIG.1 and FIG.2, the weather strip 100 which concerns on embodiment of this invention is demonstrated. FIG. 1 is an enlarged cross-sectional view showing a weather strip 100 according to an embodiment of the present invention, and corresponds to a line AA in FIG. Moreover, FIG. 2 is sectional drawing which shows a mode that the weatherstrip 100 based on embodiment elastically contacted the door D and the hollow seal part 40 bent. In addition, the same code | symbol was attached | subjected to the same part as what was shown conventionally.

  The weather strip 100 according to the embodiment of the present invention is an attachment base 30 that is inserted and attached to a flange F that is provided along the peripheral edge of the door D opening of the body B of the automobile, and the exterior of the attachment base 30. A hollow seal that is provided on the vehicle outer side wall 31 and elastically contacts a protruding curved surface portion Da having a substantially U-shaped cross section that protrudes inwardly from the door D when the door D is closed (when the door D is closed). Part 40 is provided.

  The mounting base 30 has a substantially U-shaped cross section including a vehicle outer side wall 31, a vehicle inner side wall 32, and a bottom wall 33 connecting the both side walls 31, 32, and the material thereof is not particularly limited. For example, it is made of a solid material such as EPDM or a sponge material such as EPDM having a specific gravity greater than 0.4. A plurality (three in this case) of protruding strips 35 that are in sliding contact with the vehicle outer surface of the flange F when inserted are provided on the inner side (vehicle inner side) of the mounting base 30. On the inner side (outer side of the vehicle), there is provided a lip portion 36 having a substantially tongue-shaped cross section that comes into sliding contact with the inner side surface of the flange F when inserted. In addition, a decorative lip portion 37 having a substantially tongue-shaped cross section extending inward of the vehicle is provided at a connection position between the vehicle inner side wall 32 and the bottom wall 33, and a core member 38 (made of metal) having a substantially U-shaped cross section is provided on the mounting base 30. But may be made of resin).

  The hollow seal portion 40 includes a first hollow wall 41 formed in a substantially square shape in cross section via a first bending point P1, and a second shape formed in a substantially reverse letter shape in cross section via a second bending point P2. The hollow wall 42 is connected in the direction in which the bending points P1 and P2 are separated from each other, and has a shape like a pantograph.

The first hollow wall 41 will be described. One end 41a of the first hollow wall 41 is connected to a portion closer to the end of the vehicle outer side wall 31 of the mounting base 30 and obliquely outward (in FIG. The other end 41b of the first hollow wall 41 extends toward the outside of the vehicle and inward of the hollow seal portion 40, and is bent at the first bending point P1. It is connected to the inside of the hollow seal portion 40 at the end 42b.
Further, the first hollow wall 41 is thickened from one end 41 a to the first bending point P <b> 1 so as to have higher rigidity than other portions of the first hollow wall 41. It is also possible to provide a thick portion partly instead of the entire portion from the one end 41a of the first hollow wall 41 to the first bending point P1. Here, in the cross-sectional shape, the length from the first bending point P1 to the other end 41b of the first hollow wall 41 is slightly smaller than the length from the one end 41a of the first hollow wall 41 to the first bending point P1. Although it is long, the lengths are made substantially the same, or conversely, the length from the one end 41a of the first hollow wall 41 to the first bending point P1 is made slightly longer so that the first bending point P1 is set. You may make it approach closer to the door D side.

Next, the second hollow wall 42 will be described. One end 42 a of the second hollow wall 42 protrudes toward the vehicle outer side from a portion near the bottom wall 33 of the vehicle outer side wall 31 of the mounting base 30, and further to the vehicle outer side wall 31. It is connected to a portion that is parallel and protrudes toward the bottom wall 33 side, extends diagonally outward (in FIG. 1, diagonally upper left with respect to the line extending the flange F), and is bent at the second bending point P2 to be second. The other end 42b of the hollow wall 42 extends toward the inside of the hollow seal portion 40 on the vehicle outer side, and extends so as to cover the other end 41b of the first hollow wall 41 from the vehicle outer side.
And here, between the one end 42a of the second hollow wall 42 and the second bending point P2 is a standing wall 42X, the second bending point P2 of the second hollow wall 42 and the other end 42b of the second hollow wall 42 The space between them is a seal wall 42Y. In the cross-sectional shape, the extending direction of the seal wall 42Y is formed to be an obtuse angle θ with respect to the extending direction of the standing wall 42X, and the seal wall 42Y bulges toward the inside of the hollow seal portion 40. It is formed to be curved.

Further, a lip portion 43 having a substantially tongue-shaped cross section that is continuous from the seal wall 42Y is formed at the other end 42b of the second hollow wall 42, that is, at the tip of the seal wall 42Y. As described above, since the other end 41b of the first hollow wall 41 is connected to the inside of the hollow seal portion 40 at the other end 42b of the second hollow wall 42, the lip portion 43 is located on the vehicle outer side from the hollow portion. It is made to protrude.
Further, the curvature radius R of the seal wall 42Y is larger than the curvature radius r of the projecting curved surface portion Da projecting from the door D, and the lip portion 43 is on the locus of the same curvature radius as the seal wall 42Y. 42Y is provided continuously. That is, the seal wall 42Y and the lip 43 are elastically brought into contact with the protruding curved surface portion Da when the door D is closed in a state where the seal wall 42Y and the lip portion 43 warp in a concave shape on the vehicle exterior side, that is, the protruding curved surface portion Da side of the door D.

  Further, the portion from the one end 42 a of the second hollow wall 42 to the second bending point P <b> 2 is thickened so as to have higher rigidity than the other end of the second hollow wall 42. It is also possible to provide a thick portion partly instead of the whole from one end 42a of the second hollow wall 42 to the second bending point P2. Here, in the cross-sectional shape, the length from the second bending point P2 to the other end 42b of the second hollow wall 42 is slightly smaller than the length from the one end 42a of the second hollow wall 42 to the second bending point P2. Although it is long, the length is substantially the same, or conversely, the length from the one end 42a of the second hollow wall 42 to the second bending point P2 is made slightly longer so that the second bending point P2 is set. You may make it approach closer to the door D side.

  As described above, the hollow seal portion 42 includes the first hollow wall 41 having a substantially square cross section connected to the end of the mounting base 30 on the vehicle outer side wall 31, and the bottom wall 33 of the vehicle outer side wall 31 of the mounting base 30. Since the second hollow wall 42 having a substantially inverted cross section connected to a portion that protrudes toward the vehicle outer side from the side portion and further protrudes toward the bottom wall 33 and substantially parallel to the vehicle outer side wall 31 is connected. The hollow portion has a substantially heptagon shape. The material of the hollow seal portion 42 is not particularly limited. For example, the hollow seal portion 42 is formed of a sponge material or a solid material such as EPDM having a rigidity equal to or lower than that of the material constituting the mounting base 30. Yes.

In the weatherstrip 100 configured as described above, when the seal wall 42Y of the hollow seal portion 40 elastically contacts the protruding curved surface portion Da of the door D when the door D is closed, The second hollow wall 42 having a substantially inverted cross-sectional shape is bent such that the first bending point P1 and the second bending point P2 are spaced apart from each other and the character shape is crushed from the vehicle outer side toward the vehicle inner side. The other end 41 b side of the hollow wall 41 is curved so as to enter inward of the hollow seal portion 40. At this time, since the seal wall 42Y and the lip portion 43 extending therefrom are warped toward the vehicle exterior side, the lip portion 43 approaches the protruding curved surface portion Da of the door D as shown in FIG. The back side (vehicle outer side) of the portion 43 is in close contact with the protruding curved surface portion Da.
This prevents the triangular gap S as shown in the conventional example from occurring between the lip portion 43 and the projecting curved surface portion Da of the door D. Therefore, when the door D is opened, Water droplets are prevented from entering the room.
Further, since the seal wall 42Y bulges and curves toward the inside of the hollow seal portion 40, the seal wall 42Y can reasonably follow the protruding curved surface portion Da of the door D, and in particular, the curvature radius R of the seal wall 42Y can be set. Since the radius of curvature r of the projecting curved surface portion Da is larger, a stable sealing function can be obtained, and it is possible to cope with some building variations. As a result, as shown in the conventional example, a situation in which the surface pressure (reaction force) rapidly decreases can be avoided.

In addition, the first bending point P1 and the second bending point P2 provided on the first hollow wall 41 and the second hollow wall 42 constituting the hollow seal portion 40 are also inside the hollow seal portion 40 on the door D side (vehicle outer side). Since the first hollow wall 41 is located on the vehicle outer side than the first bending point P1, the second hollow wall 42 is located on the vehicle outer side than the second bending point P2. The sealing wall 42Y and the lip 43, which are the side portions, can be secured in a stable state with a constant deflection direction when elastically contacting the protruding curved surface portion Da of the door D. Can also handle variations.
Further, in the cross-sectional shape, the extending direction of the seal wall 42Y between the second bending point P2 of the second hollow wall 42 and the other end 42b of the second hollow wall 42 is an obtuse angle with respect to the extending direction of the standing wall 42X. Since it is formed so as to be θ, the hollow portion can be made larger than in the case of an acute angle, and the reaction force due to elastic contact can be increased.

  Moreover, while providing the part thickened so that rigidity may be high compared with the other than that of the 1st hollow wall 41 from the one end 41a of the 1st hollow wall 41 to the 1st bending point P1, the 2nd hollow wall Since the part thickened so as to increase the rigidity compared to the other end of the second hollow wall 42 is also provided from one end 42a of the 42 to the second bending point P2, the base side of the hollow seal portion 40 and The rigidity of the part to be secured is ensured, and a more stable sealing function can be obtained.

  In addition, a thickened portion is provided between one end 41a of the first hollow wall 41 and the first bending point P1 and between one end 42a of the second hollow wall 42 and the second bending point P2. As shown in FIG. 3, a material having higher rigidity than that of the first hollow wall 41 (here, sponge material) from one end 41 a of the first hollow wall 41 to the first bending point P <b> 1. (For example, while providing the site | part comprised with the same material as the attachment base 30 and a solid material here, from the one end 42a of the 2nd hollow wall 42 to the 2nd bending point P2, other than that of the 2nd hollow wall 42 ( Here, a portion made of a material having higher rigidity than the sponge material (for example, the same material as the attachment base 30, here, a solid material) may be provided.

Further, in the weather strip 100 according to the embodiment of the present invention, various shapes of the hollow seal portion 40 are conceivable, but at least the hollow seal portion 40 bulges toward the inside of the hollow seal portion 40. If it is provided with a curved sealing wall 42Y and a lip portion 43 that is provided so as to protrude outward from the vehicle continuously to the sealing wall 42Y and elastically contacts the protruding curved surface portion Da of the door D together with the sealing wall 42Y, It is possible to suppress the occurrence of triangular gap S between the lip portion 43 and the protruding curved surface portion Da of the door D, and it is possible to exhibit the effect of being able to cope with some building variations, in particular, the seal wall 42Y. It is effective to make the curvature radius R larger than the curvature radius r of the protruding curved surface portion Da.
Therefore, for example, as shown in FIG. 4, the second hollow wall having a substantially inverted cross-sectional shape that is connected to the first hollow wall 41 having a generally square cross-sectional shape and that forms the hollow seal portion 40 together with the first hollow wall 41. One end 52 a of 52 may be directly connected to the bottom wall 33 side of the vehicle outer side wall 31 of the mounting base 30. At this time, the hollow portion has a substantially pentagonal shape. In addition, the other end 52b side of the second hollow wall 52 from the second bending point P2 of the second hollow wall 52 is a seal wall 42Y, and the other end 52b of the seal wall 42Y protrudes outside the vehicle from the hollow seal portion 40. The lip portion 43 is provided so as to extend continuously.
In addition, the protrusion of the lip portion 43 in the above description may be a protrusion that protrudes less than the lip portion 43 and does not flex or bend itself.

DESCRIPTION OF SYMBOLS 1 Weather strip 10 Mounting base part 11 Car outer side wall 12 Car inner side wall 13 Bottom wall 15 Projection piece 16 Lip part 17 Decorative lip part 18 Core material 20 Hollow seal part 21 First hollow wall 22 Second hollow wall 22a Tip 30 Mounting base part 31 Car Outside Side Wall 32 Car Inside Side Wall 33 Bottom Wall 35 Projection Strip 36 Lip Part 37 Decoration Lip Part 38 Core Material 40 Hollow Seal Part 41 First Hollow Wall 41a One End of First Hollow Wall 41b Other End of First Hollow Wall 42 Second hollow wall 42a One end of the second hollow wall 42b The other end of the second hollow wall 42X Standing wall 42Y Seal wall 43 Lip portion 52 Second hollow wall 52a One end of the second hollow wall 52b The other end 100 of the second hollow wall Weather strip B Body D Door Da Projecting curved surface F Flange P1 First bending point P2 Second bending point R1 First bending point R2 Second bending point S Triangle

Claims (4)

It is attached to the door opening peripheral portion of the automobile body, and is provided on the vehicle outer side of the mounting base, the mounting base having a substantially U-shaped cross section composed of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall connecting the both side walls, A weather strip comprising a hollow seal portion that elastically contacts a protruding curved surface portion having a substantially U-shaped cross section that protrudes from the door toward the inside of the vehicle,
The hollow seal portion includes a first hollow wall formed in a substantially square shape in cross section via a first bending point, and a second hollow wall formed in a substantially reverse letter shape in cross section via a second bending point. Connected,
One end of the first hollow wall is connected to a portion near the end of the vehicle outer side wall of the mounting base, and one end of the second hollow wall is from a portion near the bottom wall of the vehicle outer side wall of the mounting base. Projecting toward the outside of the vehicle and further connected to a portion projecting toward the bottom wall side substantially parallel to the vehicle exterior side wall;
Between the one end of the second hollow wall and the second bending point is a standing wall erected toward the outside of the vehicle, and between the second bending point and the other end of the second hollow wall, A bulging curve toward the inside of the hollow seal portion, and a sealing wall elastically contacting the protruding curved portion of the door;
The other end of the second hollow wall is formed with a protrusion that is continuous from the seal wall and elastically contacts the protruding curved surface of the door together with the seal wall.
The other end of the first hollow wall, said second hollow wall is connected to the inside of the hollow seal portion at the other end of the, Ri Na to protrude the protrusion outside of the vehicle,
Moreover, a portion made of a material having higher rigidity than that of the first hollow wall is provided from one end of the first hollow wall to the first bending point, or other than that of the first hollow wall A weather strip characterized in that a thickened portion is provided so as to increase rigidity compared to the above . It is attached to the door opening peripheral portion of the automobile body, and is provided on the vehicle outer side of the mounting base, the mounting base having a substantially U-shaped cross section composed of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall connecting the both side walls, A weather strip comprising a hollow seal portion that elastically contacts a protruding curved surface portion having a substantially U-shaped cross section that protrudes from the door toward the inside of the vehicle,
The hollow seal portion includes a first hollow wall formed in a substantially square shape in cross section via a first bending point, and a second hollow wall formed in a substantially reverse letter shape in cross section via a second bending point. Connected,
One end of the first hollow wall is connected to a portion near the end of the vehicle outer side wall of the mounting base, and one end of the second hollow wall is from a portion near the bottom wall of the vehicle outer side wall of the mounting base. Projecting toward the outside of the vehicle and further connected to a portion projecting toward the bottom wall side substantially parallel to the vehicle exterior side wall;
Between the one end of the second hollow wall and the second bending point is a standing wall erected toward the outside of the vehicle, and between the second bending point and the other end of the second hollow wall, A bulging curve toward the inside of the hollow seal portion, and a sealing wall elastically contacting the protruding curved portion of the door;
The other end of the second hollow wall is formed with a protrusion that is continuous from the seal wall and elastically contacts the protruding curved surface of the door together with the seal wall.
The other end of the first hollow wall is connected to the inside of the hollow seal portion at the other end of the second hollow wall, and the protrusion protrudes outward from the vehicle.
In addition, a portion made of a material having higher rigidity than that of the second hollow wall is provided from one end of the second hollow wall to the second bending point, or other than that of the second hollow wall. A weather strip characterized in that a thickened portion is provided so as to increase rigidity compared to the above . 3. The weather strip according to claim 1 , wherein a radius of curvature of the sealing wall of the second hollow wall is larger than a radius of curvature of the protruding curved surface portion protruding from the door. One of said between the second from the second bending point in the hollow walls of the second hollow wall and the other end thereof according to claim 1, wherein comprising formed at an obtuse angle relative to the vertical wall Weather strip as described in.