JP2021142934A - Door weather strip - Google Patents

Abstract

To provide a door weather strip for efficiently draining water entering a space between a door and a fin part of the door weather strip in a corner part of the door of a motor vehicle.MEANS FOR SOLVING THE PROBLEM: A door weather strip 20 elastically contacts with a door frame 14 of a rear door 10 of a motor vehicle and is attached thereto and has a fin part 24 which covers a corner part 13 of the rear door 10. At the attachment surface 44 side of the fin part 24, a water guide part 32, which elastically contacts with the door frame 14 and guides water entered from a space between the rear door 10 and the fin part 24 of the door weather strip 20 to a drain port 19 formed above a connection part 14c of the door frame 14 having the connection part 14c at the corner part 13, is formed protruding to the vehicle outer side.SELECTED DRAWING: Figure 5

Description

The present invention relates to a door weather strip for efficiently draining water that has entered between a door and a fin portion of the door weather strip at a corner portion of an automobile door.

The seal between the car door and the car body opening edge is made by a door weather strip attached to the door frame provided on the outer periphery of the door and / or an opening weather strip attached to the flange of the car body opening edge. ..

Patent Document 1 discloses the following techniques regarding the drainage of water that enters between the door frame 110 and the door weather strip 200 of an automobile door. The door weather strip 200 shown in FIGS. 10 and 11 is attached to a corner portion of a door frame 110 of a left front door of an automobile, and includes a body portion 220, a hollow seal portion 230, a rear rib 240, and a water blocking bead 250. ..

The rear rib 240 is located on the outside of the vehicle body 220 and comes into contact with the door frame 110. The water stop bead 250 is continuously provided on the outer side surface of the body 220, is located between the bottom surface 210 for mounting and the rear rib 240, and is located on the inner peripheral side of the portion where the rear rib 240 of the door frame 110 comes into contact. Make a bullet contact. Further, the door weather strip 200 is provided with a seal lip 260 that comes into contact with the door opening edge of the vehicle body panel on the roof side.

Then, on the mounting surface (the surface facing the door frame 110) of the fin portion 300 of the door weather strip 200 attached to the corner portion on the rear side of the door frame 110, a wall is formed on the inner peripheral side (front side) of the corner portion 270. The portion 280 is provided by integral molding. The wall portion 280 has a protruding height in contact with the door frame 110, and the fin portion 300 continuously hangs down from the horizontal portion of the rear rib 240 having a substantially inverted L shape, and the lower end portion stops. It has a length that is close to the water bead 250 and forms a discharge recess 291 with the water stop bead 250.

As a result, most of the infiltrated water B that has entered from between the corner portion of the door frame 110 and the fin portion 300 of the door weather strip 200 is formed between the vertical portion of the rear rib 240 having a substantially inverted L shape and the wall portion 280. It is discharged from the discharge groove 290 to the outside of the vehicle by passing through the space. Further, a small amount of infiltrated water B that has passed over the wall portion 280 generated during high water pressure car washing is allowed to flow down along the waterproof bead 250, and a discharge recess formed between the waterproof bead 250 and the lower end portion of the wall portion 280. It is discharged from 291 to the outside of the vehicle.

JP-A-2009-220750

By the way, in recent years, reflecting the variety of designs, in the rear door of an automobile, the belt line has a shape that rises greatly upward behind the vehicle, or the belt line rises upward behind the vehicle and the upper side of the rear door is the vehicle. The number of vehicles descending in an arc is increasing in the rear.

In this type of vehicle, the members inside the vehicle behind the belt line of the rear door, such as panels, door frames and frame moldings, are divided into upper and lower parts with the belt line in between, and the connecting parts connected by welding or adhesion are formed. , It may be near the corner of the door formed near the belt line. Further, since the door weather strip attached to the rear door is greatly curved in the vicinity of the corner portion, the fin portion in the door weather strip is also formed in the vicinity of the corner portion. Therefore, the fin portion is formed by covering the connection portion so as to straddle the connection portion.

Since there is a step at the connection part due to welding or adhesion of the members inside the car above and below the belt line at the rear door, water will flow from between the corner part of the rear door and the fin part of the door weather strip due to high pressure car wash etc. When it invades, it is necessary to prevent water from entering the inside of the vehicle from between the step of the connection portion and the fin portion. However, in the technique of Patent Document 1 described above, there is no description or suggestion about this connection portion. Therefore, it is necessary to take new measures to prevent water that has entered from between the corner of the rear door and the fin of the door weather strip from entering the inside of the vehicle from between the step of this connection and the fin. be.

Here, it is conceivable to set a caulking sponge in the fin portion of the door weather strip to take measures against infiltrated water that has infiltrated between the corner portion and the fin portion, but this increases the cost.

In order to solve the above problems, the present invention of claim 1 is a door weather strip which is attached by elastic contact to a door frame of an automobile door and has a fin portion covering a corner portion of the door, and the fin portion is attached. On the surface side, water that has come into contact with the door frame and has entered from between the door and the fin portion of the door weather strip is introduced to the drain port formed above the connection portion of the door frame having the connection portion at the corner portion. It is a door weather strip characterized in that a water guiding portion for guiding is formed so as to project to the outside of the vehicle.

In the present invention of claim 1, the mounting surface side of the fin portion of the door weather strip is in contact with the door frame, and water that has entered from between the door and the fin portion of the door weather strip is connected to the corner portion. Since the water guiding portion for guiding to the drain port formed above the connecting portion of the door frame having the door is formed so as to project to the outside of the vehicle, the water that has entered from between the door and the fin portion of the door weather strip. Can be guided to the drain port formed on the door side by the water guiding portion and drained before reaching the connecting portion of the door frame having a step. As a result, it is possible to prevent the infiltrated water from entering the inside of the vehicle.

According to the second aspect of the present invention, the fin portion is brought into contact with the door frame by a lip formed below the fin portion, and the water guiding portion is formed by projecting the lip to the outside of the vehicle. Door weather strip.

In the present invention of claim 2, since the fin portion is brought into contact with the door frame by the lip formed below the fin portion, the bending property of the lip seals between the lip and the door frame. NS.

Further, since the water guiding portion is formed by projecting the lip to the outside of the vehicle, the lip can be continuously formed from the portion of the fin portion where the water guiding portion does not exist to the water guiding portion. As a result, it is possible to prevent water from entering the inside of the vehicle from between the fin portion and the door frame.

The third aspect of the present invention is a door weather strip having a water guiding portion having a protruding portion that gradually increases the degree of protrusion to the outside of the vehicle from the front of the vehicle to the rear of the vehicle.

In the present invention of claim 3, since the water guiding portion has a protruding portion increasing portion in which the degree of protrusion is gradually increased from the front to the rear of the vehicle from the front to the rear of the vehicle, the lip is smoothly projected to the outside of the vehicle. , The water guiding portion can be formed by projecting. Further, water can be guided to the drain port formed on the door side and drained along the shape of the protrusion increasing portion in which the degree of protrusion from the front of the vehicle to the rear of the vehicle is gradually increased. As a result, it is possible to prevent water from entering the inside of the vehicle from between the fin portion and the door frame.

In addition, the "gradual increase" in the above-mentioned protrusion includes linearly increasing, changing so as to increase the steepness to form an arc, and both.

According to the fourth aspect of the present invention, the protruding portion of the water guiding portion has a first protruding increasing portion and a second protruding increasing portion, and the lower tip portion of the second protruding increasing portion reaches the inside of the drainage port. Weather strip.

In the present invention of claim 4, the protrusion increase portion of the water guide portion has a first protrusion increase portion and a second protrusion increase portion, so that the size (length) of the drainage port is large. Depending on the width of the pod), the momentum of the water to be guided can be slowed down and guided reliably. Further, since the lower tip portion of the second protrusion increasing portion reaches the inside of the drainage port, the infiltrated water can be reliably guided into the drainage port.

According to the fifth aspect of the present invention, the protrusion steepness of the second protrusion increase portion of the water induction portion is equal to or greater than the protrusion steepness of the first protrusion increase portion, and is between the first protrusion increase portion and the second protrusion increase portion. Is formed with a protrusion relaxation portion whose protrusion steepness is smaller than that of the first protrusion increase portion, and the protrusion steepness of the protrusion relaxation portion is smaller than the protrusion steepness of the first protrusion increase portion, and is between the protrusion relaxation portion and the door frame. Is a door weather strip in which voids are formed.

In the present invention of claim 5, it has a first protrusion increase portion and a second protrusion increase portion, and the protrusion steepness of the second protrusion increase portion is equal to or higher than the protrusion steepness of the first protrusion increase portion, and the first protrusion A protrusion relaxation portion having a protrusion steepness smaller than that of the first protrusion increase portion is formed between the increase portion and the second protrusion increase portion, that is, the protrusion steepness is such that the protrusion relaxation portion <first protrusion increase portion. ≦ It is the second protrusion increase part.

Here, the steepness of the protrusion means the degree of inclination of the water guiding portion in the protrusion to the outside of the vehicle, and the large steepness means the degree of inclination, that is, the protrusion of the fin portion from the mounting surface to the outside of the vehicle. It means that the inclination angle is large.

Therefore, water can be reliably guided to the drainage port formed on the door side by the width of the protrusion mitigation portion in the longitudinal direction of the vehicle. That is, the water flowing along the first protrusion increase portion flows into the drainage port formed on the door side at the end point portion of the first protrusion increase portion, and the water flows through the end point portion of the first protrusion increase portion to relax the protrusion. It is divided into those that flow along the part. Then, the water flowing along the protrusion relaxation portion can be made to flow into the drain port at once by the second protrusion increase portion having a large protrusion steepness, so that the water can be reliably guided to the drain port. As a result, it is possible to prevent water from entering the inside of the vehicle from between the fin portion and the door frame.

The protrusion relaxation portion includes a case where the protrusion steepness is zero, that is, a case where the protrusion relaxation portion is formed while maintaining the end point portion of the first protrusion increase portion and is connected to the second protrusion increase portion. Further, the protrusion relaxation portion and the second protrusion increase portion may be continuously formed in an arc shape by changing so as to increase the steepness.

In addition, a gap is formed below the protrusion mitigation portion and between the door frame and the door frame. Since the first protrusion increase portion and the second protrusion increase portion drain water at different locations in the door frame, a protrusion relaxation portion is formed between the first protrusion increase portion and the second protrusion increase portion, and further protrusions are formed. By forming a gap between the relaxation portion and the door frame, for example, when the first protrusion increasing portion is deformed by receiving an external force, it becomes difficult for the deformation of the first protrusion increasing portion to be transmitted to the second protrusion increasing portion. , Water can be reliably guided to the drainage port without hindering the drainage at the second protrusion increasing portion. The reverse is also true.

In particular, the door frame is discontinuous, for example, the door frame has a step, and the portion of the door frame that is in contact with the first protrusion increase portion and the portion that is in contact with the second protrusion increase portion are formed separately. If there is a portion, it is preferable not to hit the door frame at the discontinuous portion. This is because when the protrusion increase portion comes into contact with the discontinuous portion of the door frame, an abnormal external force is transmitted to the first protrusion increase portion and the second protrusion increase portion via the protrusion relaxation portion, and the first protrusion increase portion and the first protrusion increase portion. This is because the second protrusion increasing portion is deformed in a direction different from the direction in which it should be in contact with the original, and the drainage property is deteriorated. Therefore, by forming the gap, it is possible to prevent the first protrusion increasing portion and the second protrusion increasing portion from being deformed in a direction different from the direction in which they should originally come into contact with each other.

The present invention of claim 6 is a door weather strip in which a plurality of lips are formed. In the present invention of claim 6, since a plurality of lips are formed, the fin portion can be firmly erected on the door frame by the plurality of lips.

The present invention of claim 7 extends above the water guiding portion of the fin portion from the front of the vehicle to the rear of the vehicle, and further downward in a linear or upwardly convex arc shape, and the rear end of the fin portion. A door weather strip in which a drainage lip having a gap is formed between the rib and a drainage gap is formed between the rear end rib and the door frame.

As described above, the water that has entered between the door and the fin portion of the door weather strip can be guided to the drain port formed on the door side by the water guiding portion and drained. However, depending on the arrangement of the drainage port formed on the door side, it may be necessary to deal with the water that has entered from between the door at the position behind the drainage port and the fin portion of the door weather strip. Is required to drain water efficiently.

In the present invention of claim 7, above the water guiding portion of the fin portion, a linear or upwardly convex arc shape extends from the front of the vehicle to the rear of the vehicle and further downward, and the rear end of the fin portion. Since a drainage lip having a gap between the rib and the drainage lip is formed and a drainage gap is formed between the rear end rib and the door frame, the door at the position behind the drainage port and the fin portion of the door weather strip are formed. The water that has entered from between can be guided by the drainage lip and drained from the drainage gap formed between the door frame and the rear end rib of the fin portion.

On the mounting surface side of the fin part of the door weather strip, it is formed so as to project to the outside of the vehicle, and it comes into contact with the door frame, and water that has entered from between the door and the fin part of the door weather strip is introduced from the connection part of the door frame. Since the water guide portion for guiding to the drain port formed above is formed so as to project to the outside of the vehicle, the water that has entered from between the door and the fin portion of the door weather strip is formed at the connection portion of the door frame, that is, Before reaching the step, it can be guided to the drain port formed on the door side by the water guiding portion to drain the water. As a result, it is possible to prevent the infiltrated water from entering the inside of the vehicle.

It is a front view which looked at the rear door on the right side of a car from the outside of the car. FIG. 1 is a front view of FIG. 1 as viewed from the inside of the vehicle, and is a diagram for explaining the positional relationship between the rear door and the door weather strip. It is a perspective view of the body side before mounting the door weather strip seen from the direction A of FIG. It is a perspective view when the door weather strip seen from the B direction of FIG. 2 is attached. It is an external view of the fin portion of the door weather strip in the 1st Embodiment of this invention as seen from the mounting surface side. FIG. 5 is a cross-sectional view taken along the line XX in FIG. FIG. 5 is a cross-sectional view taken along the line YY in FIG. It is an external view of the fin portion of the door weather strip in the second embodiment of the present invention as viewed from the mounting surface side. FIG. 8 is a cross-sectional view taken along the line XX in FIG. FIG. 5 is an external view of a fin portion of a conventional door weather strip as viewed from the mounting surface side (Patent Document 1). It is sectional drawing which shows the assembly of the conventional door weather strip and a door frame (Patent Document 1).

The first embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG. 1 is a front view of the rear door 10 on the right side of the automobile as viewed from the outside of the automobile. Further, FIG. 2 is a front view of FIG. 1 as viewed from the inside of the vehicle, and particularly explains the positional relationship with the door weather strip 20. The present invention can also be applied to the rear door on the left side.

The rear door 10 of FIG. 1 has a shape in which the belt line 11 rises upward at the rear of the vehicle, and in addition, the upper side portion 12 of the door has a shape in which the upper side portion 12 faces the rear of the vehicle and gently descends with a convex arc shape. have. As a result, the corner portion 13 of the rear door 10 is formed in the vicinity of the belt line 11. Then, as shown in FIG. 2, the fin portion 24 of the door weather strip 20 is formed at the rear corner portion 13 of the rear door 10.

In FIG. 2, the fin portion 24 formed on the door weather strip 20 is formed by molding, and the front and rear (upper and lower in FIG. 2) portions of the fin portion 24 are formed by extrusion molding. The triangular marks shown in FIG. 2 indicate the extrusion-molded portion on the white side and the mold-molded portion on the black-filled side.

As shown in FIG. 3, the door side to which the fin portion 24 of the door weather strip 20 is attached has a door frame 14, a retainer 15, a frame molding 16, and an assembly panel 17. The frame molding 16 and the assembly panel 17 may be integrally formed. The assembly panel 17 is formed with a hole 18 for fitting a clip 45 (FIG. 5) attached to the fin portion 24 of the door weather strip 20. Further, the door frame 14 is divided in the vicinity of the belt line 11, the upper part is 14a and the lower part is 14b, and the lower door frame 14b is connected so as to cover the upper door frame 14a to form a connecting portion 14c. ing. As a result, a step is generated in the connecting portion 14c of the door frames 14a and 14b. Regarding the following description, when it is necessary to explain the door frame separately, it is described as the door frame 14a and the door frame 14b, and when it is not necessary to explain separately such as being applied in common, the door is described. It is described as a frame 14.

A drain port 19 is formed above the connecting portion 14c of the door frames 14a and 14b with the assembly panel 17. The drainage port 19 utilizes the gap between the door frame 14 and the assembly panel 17 generated by the retainer 15 disappearing above the connecting portions 14c of the door frames 14a and 14b (on the front side of the vehicle). To form. In FIG. 3, the retainer 15 is notched diagonally and disappears, and the diagonal notch is formed in the fin portion 24 of the door weather strip 20, which will be described later, and the protrusion increasing portion 33 of the water guiding portion 32 ( It corresponds to the shape of the first protrusion increasing portion 34).

As shown in FIG. 4, the fin portion 24 of the door weather strip 20 is attached so as to straddle the connecting portion 14c of the door frames 14a and 14b, the assembly panel 17, and the frame molding 16.

As shown in FIGS. 5 to 7, the door weather strip 20 is a so-called hydride type, and in the portion where the fin portion 24 is formed, the mounting base portion 21, the hollow seal portion 22, the connecting portion 23, and the fin portion 24 are formed. The ribs 26 of the fin portion 24, which will be described later, are formed by using an EPDM sponge material except for the parts other than the EPDM solid material. A resin insert 25 is inserted into the fin portion 24 in order to improve shape retention. The insert may be made of metal, but resin is preferable from the viewpoint of weight reduction. Further, in FIG. 5, the door frame 14b shown in FIGS. 3 and 4 is omitted. FIG. 6 is a cross-sectional view of a fin portion 24 of a portion where the water guiding portion 32, which will be described later, is not formed, and FIG. 7 is a fin of a portion where the water guiding portion 32 (second protrusion increasing portion 35) is formed. It is sectional drawing of the part 24. Further, in FIG. 7, the clip 45 and the portion related thereto are omitted.

The upper tip of the fin portion 24 is bent to the outside of the vehicle, and a rib 26 having a shape in which the tip is split in two is formed. Further, a seal lip 27 is formed at the upper tip portion of the fin portion 24.

At the rear end of the fin portion 24, that is, at the C portion on the left side in FIG. 5, the rib 26 disappears above the fin portion 24 (at the same time, the frame molding 16 also disappears), and the fin portion 24 comes into contact with the rear door 10. Change to a seal configuration. Further, in the D portion, the rear end rib 42 formed in the fin portion 24 comes into contact with the door frame 14b.

As shown in FIG. 6, at the lower tip portion (retainer 15 side (also on the door frame 14a side)) of the fin portion 24, the resin insert 25 bends to the outside of the vehicle, thereby projecting to the outside of the vehicle 28. Is formed. Further, a double lip 29 (first lip 30 on the inside of the vehicle and second lip 31 on the outside of the vehicle) is formed below the protrusion 28. The reason why the lip 29 is doubled is that the bending property of the lip 29 is utilized to absorb the positional deviation caused by the dimensional error between the fin portion 24, the tip portion of the frame molding 16 and the door frame 14a. In order to secure a seal between the frame molding 16 and the door frame 14 for the fin portion 24, and to firmly stand the fin portion 24 on the retainer 15 and the door frame 14a by the first lip 30 and the second lip 31. be.

As shown in FIG. 5, a water guiding portion 32 is formed on the mounting surface 44 side of the fin portion 24 so as to project toward the mounting surface 44 and come into contact with the door frame 14 of the rear door 10. The water guiding portion 32 was formed by projecting the second lip 31 to the outside of the vehicle.

The water guiding portion 32 is connected to a first protruding increasing portion 34 that gradually projects outward from the front to the diagonally rearward, a protruding relaxing portion 38 that is connected to the first protruding increasing portion 34, and a protruding relaxing portion 38. It has a second protrusion increasing portion 35. Further, behind the water guiding portion 32, a protruding decreasing portion 36 connected to the second protruding increasing portion 35 is formed.

In FIG. 5, the width of the connecting portion between the first protruding increasing portion 34 and the protruding relaxing portion 38 and the connecting portion between the second protruding increasing portion 35 and the protruding decreasing portion 36 is on the outside of the vehicle and on the rear door 10 side. The formed drainage port 19 is located.

Here, the steepness of the protrusion is such that the protrusion relaxation portion 38 <the first protrusion increase portion 34 ≦ the second protrusion increase portion 35. Regarding the protrusion relaxation portion 38, the degree of protrusion may be increased toward the second protrusion increase portion 35, and the protrusion height of the connecting portion of the first protrusion increase portion 34 with the protrusion relaxation portion 38 is maintained. You may. In the present invention, the first protrusion increasing portion 34, the protrusion relaxing portion 38, and the second protrusion increasing portion 35 are referred to as a protrusion increasing portion 33. Further, the protrusion reducing portion 36 is formed so as to gradually return to the original position (the position when the water guiding portion 32 is not formed) rearward.

Gradually increasing or decreasing the above protrusion is to project the second lip 31 to the outside of the vehicle while ensuring the sealing property between the second lip 31 and the retainer 15, and the second lip 31 and the door frame 14a. This is to make it overhang. Further, regarding the steepness of the protrusion, the first protrusion increasing portion 34 ≦ the second protrusion increasing portion 35 uses the shape of the door frame 14 that descends in an arc shape to the rear to smoothly retain the infiltrated water. This is to ensure that the water is guided into the drain port 19 without any problem.

Further, since a gap 39 is formed between the protrusion relaxation portion 38 and the door frame 14, the gap 39 causes, for example, the second protrusion when the first protrusion increase portion 34 is deformed by receiving an external force. The deformation of the first protrusion increasing portion 34 is less likely to be transmitted to the increasing portion 35, and water can be reliably guided into the drain port 19 without hindering the drainage in the second protruding increasing portion 35. The same applies to the opposite case, that is, when the second protrusion increasing portion 35 is deformed by receiving an external force.

Further, the first protrusion increasing portion 34 is in contact with the retainer 15, and the second protrusion increasing portion 35 is in contact with the door frame 14a. Therefore, due to this gap 39, an abnormal external force is transmitted to the first protrusion increasing portion 34 and the second protrusion increasing portion 35 via the protrusion relaxing portion 38, and the first protrusion increasing portion 34 and the second protrusion increasing portion 35 are originally It is possible to prevent deformation in a direction different from the direction to be hit.

As shown in FIG. 7 (cross-sectional view of the fin portion 24 in which the water guiding portion 32 (second protrusion increasing portion 35) is formed), the resin insert is formed at the lower tip portion (door frame 14a side) of the fin portion 24. The amount of protrusion 25 to the outside of the vehicle is increased, and the second protrusion increase portion 35 is formed in which the protrusion 28 is enlarged. Also, the retainer 15 has disappeared. As a result, the space below between the water guiding portion 32 and the assembly panel 17 is opened, and drainage to the drain port 19 becomes possible.

Further, as shown in FIGS. 5 and 7, in the second protrusion increasing portion 35, the lower tip portion 37 of the second lip 31 reaches the inside of the door frame 14, so that the infiltrated water is surely discharged into the drain port 19. Can be guided to.

To attach the fin portion 24 of the door weather strip 20 to the rear door 10, the attachment base portion 21 is fitted into the attachment groove 50 of the door frame 14, and the first lip 30 and the second lip 31 are brought into contact with the door frame 14. Then, it is fitted into the assembly panel 17 by the clip 45, and the two-split portion of the rib 26 is inserted into the tip end portion of the frame molding 16, and at the same time, the lower side of the two-split rib 26 is above the assembly panel 17. It is attached to the corner portion 13 of the rear door 10 by abutting on the tip portion.

Then, when the rear door 10 is closed, the hollow seal portion 22 and the seal lip 27 are in bullet contact with the vehicle body opening edge portion (two-dot chain line in FIGS. 6 and 7), and the rear door 10 and the vehicle body opening edge portion are sealed. Will be done. Therefore, the seal between the rib 26 and the tip of the frame molding 16 and the rib 26 and the upper tip of the assembly panel 17 acts as a barrier against the ingress of water from the outside in the fin portion 24.

When water enters from between the rib 26 and the tip of the frame molding 16 and between the rib 26 and the upper tip of the assembly panel 17 due to high-pressure car washing or deterioration over time (upper arrow in FIG. 7). Water hangs down along the mounting surface 44 of the fin portion 24 or between the rib 26 and the upper tip of the assembly panel 17 toward the retainer 15 on the door frame 14a (upper in FIG. 7). Arrow).

At this time, since the retainer 15 on the door frame 14a is sealed between the retainers 15 by the impact of the second lip 31, water is blocked by the second lip 31. On the other hand, the water that reaches the water guiding portion 32 through the second lip 31 or the water that reaches the water guiding portion 32 from above flows to the drain port 19 that opens at the tip of the water guiding portion 32 (FIG. 7 downward arrow).

As a result, the connecting portion 14c between the door frame 14a and the door frame 14b, that is, the drainage port 19 formed on the rear door 10 side by the water guiding portion 32 can be guided to drain the water before reaching the step. , It is possible to prevent the infiltrated water from entering the inside of the vehicle.

The water flowing to the drain port 19 may be drained by forming a drainage channel below the rear door 10, or may be absorbed by arranging, for example, a sponge or the like below the drain port 19. ..

Next, a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. The difference between the second embodiment and the first embodiment is that, in the second embodiment, the fin portion 24 of the door weather strip 20 is above the water guiding portion 32, from the front to the rear. , Two drainage lips (first drainage lip 40, second drainage lip 41) which are extended downward in a convex arc shape and have a gap between the rear end rib 42 and the rear end rib 42 are further formed. A drainage gap 43 is formed between the fin portion 24 and the door frame 14b.

The protruding length of the second drainage lip 41 is formed longer than that of the first drainage lip 40. This is because the second drainage lip 41 takes into consideration that the water that exceeds the first drainage lip 40 hangs down.

Further, both the first drainage lip 40 and the second drainage lip 41 are angled so that the tip portion is above the root portion when the fin portion 24 is attached to the rear door 10. This is for the first drainage lip 40 and the second drainage lip 41 to allow water to flow smoothly and surely toward the rear rear end rib 42. Further, the resin insert 25 also has a shape that protrudes to the outside of the vehicle at the forming portions of the first drainage lip 40 and the second drainage lip 41.

Since the second drainage lip 41 is formed for backing up the first drainage lip 40, the drainage lip may be only the first drainage lip 40.

As described above, at the rear end of the fin portion 24, that is, at the C portion on the left side in FIG. 5, the rib 26 disappears above the fin portion 24, and the fin portion 24 changes to a seal that abuts on the rear door 10. Further, in the D portion, the rear end rib 42 formed in the fin portion 24 comes into contact with the door frame 14.

The water that has entered from the C portion and the D portion due to the high-pressure car wash or the like hangs down along the vehicle outer surface of the fin portion 24 or from the fin portion 24. At this time, two drainage lips (first drainage lip 40, which extend upward from the front of the vehicle to the rear and further downward and have a gap between the water guide portion 32 and the rear end rib 42. Since the second drainage lip 41) is formed and the drainage gap 43 is formed between the fin portion 24 and the door frame 14b, the water along the vehicle outer surface of the fin portion 24 is collected by the first drainage lip 40. It is guided and reaches the door frame 14b through the gap between the rear end rib 42, and is drained from the drainage gap 43 between the fin portion 24 and the door frame 14b. Then, the water is drained to the outside of the vehicle through the door frame 14b. This drainage is drainage to the outside of the vehicle, so it does not matter.

Further, the water that has passed over the first drainage lip 40 is guided to the second drainage lip 41 having a higher protrusion height than the first drainage lip 40, reaches the door frame 14b through a gap between the first drainage lip 40 and the rear end rib 42, and fins. Drainage is performed from the drainage gap 43 between the portion 24 and the door frame 14b. Then, the water is drained to the outside of the vehicle through the door frame 14b.

Further, the water dripping from the fin portion 24 reaches the door frame 14b and is drained from the drainage gap 43 between the fin portion 24 and the door frame 14. Then, the water is drained to the outside of the vehicle through the door frame 14b.

When the water that has entered from the C portion heads toward the front of the vehicle, it is drained to the outside of the vehicle through the water guiding portion 32 and the drain port 19 described in the first embodiment, so that there is no problem.

The practice of the present invention is not limited to the above-described embodiment, and various modifications can be made as long as the object of the present invention is not deviated.

In the first embodiment, the water infiltrated from the C and D portions in FIG. 5 was not mentioned, but the water infiltrated from the C and D portions has a door frame 14b located rearward from the protrusion reduction portion 36. Therefore, the water can be drained from the drainage gap 43 described in the second embodiment.

In the embodiment of the present invention, the door weather strip 20 is made of EPDM (ethylene propylene diene rubber) as a material, but may be made of, for example, a dynamically crosslinked thermoplastic elastomer (TPV).

10 Rear door 14 Door frame 14c Connection part 15 Retainer 16 Frame molding 17 Assembly panel 19 Drainage port 20 Door weather strip 24 Fin part 26 Rib 27 Seal lip 30 First lip 31 Second lip 32 Water guide part 34 First protrusion increase part 35 Second protrusion increasing portion 37 Lower tip portion 38 Projection relaxation portion 39 Void 40 First drainage rib 41 Second drainage rib 42 Rear end rib 43 Drainage gap 44 Mounting surface

Claims (7)

A door weather strip that is attached to the door frame of an automobile door by bullet contact and has a fin portion that covers a corner portion of the door.
On the mounting surface side of the fin portion, water that comes into contact with the door frame and has entered from between the door and the fin portion of the door weather strip is allowed to enter the door frame having a connecting portion at the corner portion. A door weather strip characterized in that a water guiding portion for guiding to a drain port formed above the connecting portion is formed so as to project to the outside of the vehicle. The fins are brought into contact with the door frame by a lip formed below the fins.
The door weather strip according to claim 1, wherein the water guiding portion is formed by projecting the lip to the outside of the vehicle. The door weather strip according to claim 1 or 2, wherein the water guiding portion has a protrusion increasing portion that gradually increases the degree of protrusion to the outside of the vehicle from the front of the vehicle to the rear of the vehicle. The protrusion increasing portion of the water guiding portion has a first protrusion increasing portion and a second protrusion increasing portion.
The door weather strip according to claim 3, wherein the lower tip portion of the second protrusion increasing portion reaches the inside of the drain port. The protrusion steepness of the second protrusion increase portion of the water induction portion is equal to or higher than the protrusion steepness of the first protrusion increase portion.
A protrusion relaxation portion having a protrusion steepness smaller than that of the first protrusion increase portion is formed between the first protrusion increase portion and the second protrusion increase portion.
The protrusion steepness of the protrusion relaxation portion is smaller than the protrusion steepness of the first protrusion increase portion.
The door weather strip according to claim 4, wherein a gap is formed between the protrusion relaxation portion and the door frame. The door weather strip according to any one of claims 2 to 5, wherein the lip is formed in a plurality of pieces. Above the water guiding portion of the fin portion, it extends from the front of the vehicle to the rear of the vehicle and further downward in a linear or upwardly convex arc shape, and is between the fin portion and the rear end rib of the fin portion. The door weather strip according to any one of claims 1 to 6, wherein a drainage lip having a gap is formed, and a drainage gap is formed between the rear end rib and the door frame.

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