JP5655665B2 - Automotive door weather strip - Google Patents

Description

  The present invention relates to an automobile door weather strip that seals between an automobile door and a periphery of a vehicle body opening.

  As shown in FIG. 6, the seal between the automobile door and the periphery of the vehicle body opening is formed by the door weather strip 110 attached to the outer periphery of the door frame 2 and / or the opening trim attached to the flange at the periphery of the vehicle body opening. It is made by a weather strip (not shown). The door glass 5 and the door are sealed by a glass run (not shown) attached to the inner peripheral channel 4 of the door frame 2.

As shown in FIG. 7, the door weather strip 110 attached to the outer periphery of the door frame 2 and door panel 1 of the door is composed of an attachment base 111 and a seal portion integrally formed on the upper portion thereof. It comprises a hollow seal part 114 and a seal lip part 116. The attachment base 111 is fixed to the door frame 2 by being fitted into a retainer 155 attached to the outer periphery of the door frame 2. At this time, the seal lip portion 116 abuts on the outermost end portion of the vehicle body opening edge to seal the space between the vehicle body opening edge and the door frame 2.
At that time, the hollow seal portion 114 is in contact with the bulging portion on the inner side of the vehicle rather than the portion where the seal lip portion 116 on the periphery of the vehicle body opening is in contact, and the space between the door frame 2 and the vehicle body opening periphery is doubled. It is sealed.

  Also, the door weather strip 110 may have a different cross-sectional shape between the portion attached to the door frame 2 and the portion attached to the door panel 1, and as shown in FIG. In the vicinity of the joint portion of the door panel 1, the door weather strip 110 may be joined by a connecting portion 115 formed by molding. Further, the corner portion of the door frame 2 is also connected by a corner portion 112 formed by molding to bend the corner portion.

  The extruded portion of the door weather strip 110 is provided with a mounting base hollow portion 122 formed in a hollow shape in order to increase the flexibility of the hollow seal portion 114 and the mounting base 111 and reduce the weight. A hollow seal bridge portion 133 is formed between the hollow seal portion 114 that contacts the periphery of the vehicle body opening and the mounting base hollow portion 122 so as to connect the outer wall of the hollow seal portion 114.

  However, in the mold forming part, in order to form the hollow part in the hollow seal part 230, a core is provided in the mold, and the core removal of the mounting base 220 of the mold forming part is performed after the molding as shown in FIG. The core needs to be extracted from the slit 224. For this reason, considering the direction in which the core is extracted, the hollow portion forms two cavities in the vertical direction of the hollow seal portion 230 and the mounting base hollow portion as shown in the cross-sectional shape extruded as shown in FIG. In order to pull out the core, only one hollow portion could be provided as shown in FIG. 8 (see, for example, Patent Document 1).

When the core removal slit 224 is formed in the mounting base 220, when the mounting base 220 is fitted into the retainer 155, the core removal slit 224 opens or closes so that the holding force is weak and the retainer 155 is easily detached. Yes.
In addition, in order to eliminate the water that has entered between the door frame 2 and the door weather strip 210, a caulking sponge is sometimes attached to the bottom surface of the door weather strip 210. There was a problem that increased.

  Therefore, as shown in FIG. 9, there is a door weather strip 310 that forms attachment base seal protrusions 327 along both side ends of the attachment base 320 where the core slits 324 are formed in the mold forming portion 312. (For example, refer to Patent Document 2). However, in this case, the water flowing from the back surface of the attachment base 320 of the extrusion molding unit 311 above the mold molding unit 312 to the core slit 324 of the mold molding unit 312 cannot be discharged.

  Therefore, as shown in FIG. 10, in the molded part 412, mounting base seal protrusions 427 and 427 are formed along both side ends of the mounting base 420 where the core slit 424 is formed. There is a door weather strip 410 that forms attachment base water stop ribs 425 so as to connect base seal protrusions 427 and 427 obliquely (see, for example, Patent Document 3). However, in this case, since the attachment base water stop rib 425 is formed in the middle of the core removal slit 424, rainwater or the like cannot be prevented from flowing from the core removal slit 424, and the attachment base water stop rib 425 is not provided. It was divided by the core removal slit 424, and shifted on both sides of the core removal slit 424, so that sufficient sealability could not be obtained.

  Further, as shown in FIG. 11, in the mold forming portion 512, attachment base seal protrusions 527 and 527 are formed along both side ends of the attachment base portion, and an extrusion molding portion 511 at the lower end of the mold formation portion 512 is formed. There is a door weather strip 510 in which drainage ribs 525 are formed so as to obliquely connect the mounting base seal protrusions 527 and 527 on both sides thereof (see, for example, Patent Document 4). However, in this case, the water is discharged after passing through the core-extracting slit and flowing through the outer surface of the mounting base portion of the molded part 512, and it is necessary to consider drainage at the core-extracting slit portion. There was no.

JP 2009-12490 A JP 2006-56301 A JP 2000-351326 A JP 2008-62888 A

  Therefore, an object of the present invention is to provide an automobile door weather strip that is not easily detached from a door frame and has excellent sealing properties.

In order to solve the above problems, the present invention of claim 1 is a door weather strip that is attached to the outer periphery of a door of an automobile and seals between a vehicle body opening of the automobile and the door.
The door weather strip is formed of an extrusion molding portion formed by extrusion molding and a mold molding portion formed by mold molding connecting end portions of the extrusion molding portion, and the extrusion molding portion and the mold molding portion are respectively doors. A mounting base that is attached to the outer periphery of the door, and a seal portion that is integrally formed with the mounting base and seals against the periphery of the vehicle body opening.The mounting base has a plate-like mounting base bottom that faces the outer periphery of the door. And
The extrusion molding part is composed of at least an upper side part attached to the upper side of the outer periphery of the door and a vertical side part attached to the vertical side of the outer periphery of the door. The vertical side part is attached to the upper part of the vertical side of the outer periphery of the door. The upper part of the vertical side and the lower part of the vertical side attached to the lower part of the outer peripheral side of the door are formed, and the mold forming part is arranged between the corner part attached to the outer peripheral corner of the door and the vertical side part. It consists of a vertical side connection part that connects the upper part and the lower part of the vertical side,
In the vertical side connection part, the connection part of the vertical side upper part and the vertical side connection part is formed as an upper connection line, the connection part of the vertical side lower part and the vertical side connection part is formed as a lower connection line, and is long on the mounting base. A mounting base upper bottom portion is formed between the top end of the core cutting slit and the upper connection line, and an outer surface of the upper base portion of the mounting base is formed. A mounting base water-stopping rib is formed obliquely over substantially the entire width of the mounting base upper base, and the mounting base seal protrusion formed on the outer side edge of the mounting base upper base is a portion of the mounting base water-stopping rib. The mounting base seal ridge formed on the vehicle inner side edge of the base of the upper part of the mounting base is formed in the upper connecting line direction from the tip of the mounting base waterstop rib on the inner side of the vehicle. Doaue automobile, characterized by being formed to extend It is a strip.

  In the first aspect of the present invention, the door weather strip is formed of an extrusion molded portion formed by extrusion molding and a mold molded portion formed by mold molding that connects the end portions of the extrusion molded portion. And the mold forming part each have a mounting base that is attached to the outer periphery of the door, and a seal part that is integrally formed with the mounting base and seals against the periphery of the vehicle body opening, and the mounting base is a plate that faces the outer periphery of the door The base of the mounting base has a shape.

  For this reason, an extrusion molding part can be rapidly shape | molded by extrusion molding, and can be shape | molded according to the shape of the corner of a door by mold shaping. Since it is held on the outer periphery of the door by the mounting base, the position of the seal portion is stable, the seal portion can be surely brought into contact with the periphery of the vehicle body opening, and sealing performance can be ensured. Since the mounting base has a flat mounting base bottom that faces the outer periphery of the door, the outer peripheral surface of the door and the mounting base bottom can be in close contact so that the mounting base can be mounted stably.

  The extrusion part is composed of at least the upper side part attached to the upper side of the outer periphery of the door and the vertical side part attached to the vertical side of the outer periphery of the door. It can seal with a part and can reduce cost. In addition, it is possible to prevent rainwater and noise from entering the vehicle over the entire outer periphery, upper side, and vertical side of the door.

  The vertical side portion is composed of an upper side of the vertical side that is attached to the upper part of the vertical side of the outer periphery of the door and a lower part of the vertical side that is attached to the lower side of the vertical side of the outer periphery of the door. The upper part of the vertical side and the lower part corresponding to the door panel can be sealed with the upper part of the vertical side and the lower part of the vertical side formed with different cross-sectional shapes.

  The mold forming part is configured by a corner part attached to a corner on the outer periphery of the door and a vertical side connection part that connects the upper part of the vertical side and the lower part of the vertical side in the middle of the vertical side part. For this reason, it is possible to attach a corner part that matches the shape of the corner such as a door frame at the corner part, and in the vertical side part, the upper part of the vertical side and the lower part of the vertical side that are separately formed are connected smoothly even if the cross-sectional shape is different. can do. Moreover, it can be continuously made into an integrated door weather strip at the molding part, is easy to attach to the door, and has excellent sealing properties.

  In the vertical side connection part, the connection part of the vertical side upper part and the vertical side connection part is formed as an upper connection line, the connection part of the vertical side lower part and the vertical side connection part is formed as a lower connection line, and is long on the mounting base. A cored slit extending in the direction was formed. For this reason, while connecting a vertical side upper part and a vertical side connection part and a vertical side lower part and a vertical side connection part can be ensured, the core for forming the hollow part in a shaping | molding part can be extracted easily.

An upper base of the mounting base where no hollow slit is formed is provided between the upper tip of the core slit and the upper connection line, and the outer surface of the upper base of the mounting base extends over the entire width of the upper base of the mounting base. A mounting base waterstop rib was formed obliquely. For this reason, the mounting base upper base has high rigidity at the mounting base upper base, and the mounting base upper bottom can be firmly mounted on the door frame, etc., and the mounting base waterstop ribs are not cut and maintain a stable shape. The attachment base water stop rib can be brought into contact with the periphery of the vehicle body opening, and rainwater can be discharged reliably.
In addition, the mounting base seal protrusion formed on the vehicle outer side end of the mounting base upper base is formed to be continuous with the vehicle outer side of the mounting base waterstop rib, and is provided on the vehicle inner side of the mounting base upper bottom. The attachment base seal protrusions formed on the side ends were formed so as to extend in the upper connecting line direction from the front end of the attachment base water stop rib on the vehicle inner side. For this reason, rainwater or the like that has entered from between the mounting base at the upper part of the vertical side and the outer periphery of the door frame is carved at a part continuous with the mounting base seal protrusion at the upper part of the vertical side that extends from the mounting base water stop rib. It can be received so as not to enter the inside, and can flow toward the outside of the vehicle along the inclination of the mounting base water stop rib, and can be discharged to the outside of the vehicle from the side formed to be continuous with the mounting base seal protrusion.

  According to a second aspect of the present invention, when the door weather strip is attached to the outer periphery of the door, the attachment base water stop rib is an automobile door weather strip that abuts on the outer peripheral surface of the door.

  In the second aspect of the present invention, when the door weather strip is attached to the outer periphery of the door, the attachment base water stop rib abuts on the outer peripheral surface of the door, and therefore, between the outer periphery of the door and the door weather strip. Rainwater and the like that has entered can be reliably discharged by the mounting base water stop ribs.

  According to a third aspect of the present invention, there is provided a door weather strip for an automobile in which the upper base portion of the mounting base portion is held by a retainer having both mounting base side ends formed on the outer periphery of the door.

  In the third aspect of the present invention, the mounting base upper base portion is held by the retainer formed on the outer periphery of the door at both mounting base side ends, so that a core removal slit is not formed on the mounting base upper base portion. In addition to the fact that the attachment base waterstop ribs are formed, the rigidity of the attachment base upper base is increased, and the attachment base upper bottom can be strongly held by the retainer.

  According to a fourth aspect of the present invention, there is provided an automotive door weather strip in which mounting base seal protrusions are formed on both side ends of the outer surface of the mounting base bottom portion.

  In the present invention of claim 4, since the mounting base seal protrusions are formed on both side ends of the outer surface of the base of the mounting base, the door weather strip has a wide space between the mounting base of the door weather strip and the outer periphery of the door. It is possible to prevent rainwater and the like from entering.

  In the fifth aspect of the present invention, the attachment base seal protrusion formed on one side end of the attachment base upper base is formed so as to be continuous with one tip of the attachment base waterstop rib, and the attachment base upper base The mounting base seal protrusion formed on the other side end of the part is an automobile door weather strip that extends in the upper connecting line direction from the other end of the mounting base water blocking rib.

  In this invention of Claim 5, the attachment base seal | sticker protrusion formed in one side edge of the attachment base upper part bottom part is formed so that it may continue with one front-end | tip of an attachment base water stop rib, and an attachment base upper part base The attachment base seal projecting ridge formed on the other side end of the part was extended in the upper connection line direction from the other tip of the attachment base water stop rib. For this reason, rainwater or the like that has entered from between the mounting base of the extrusion molding part and the outer periphery of the door enters the inside of the vehicle at a portion extending in the upper connection line direction from the other end of the mounting base water stop rib. Therefore, it can be discharged to the outside of the vehicle without a break from the side formed so as to be continuous with one end of the mounting base water stop rib.

  In the present invention of claim 6, the upper part of the vertical side and the lower part of the vertical side have different cross-sectional shapes, the upper part of the vertical side is held by a retainer formed on the outer periphery of the door, and the lower part of the vertical side is attached to the mounting base. An automotive door weatherstrip held with attached clips or double-sided adhesive tape.

  In the present invention of claim 6, the upper part of the vertical side and the lower part of the vertical side have different cross-sectional shapes, the upper part of the vertical side is held by a retainer formed on the outer periphery of the door, and the lower part of the vertical side is attached to the mounting base. Hold with attached clip or double-sided adhesive tape. For this reason, it is not necessary to form a retainer in the lower outer periphery of the door, and the structure of the outer peripheral portion of the door can be simplified.

  According to a seventh aspect of the present invention, the vertical side connecting portion is a door weather strip for automobiles formed in the vicinity of the connection between the door frame of the door and the door panel.

  In the present invention of claim 7, since the vertical side connecting portion is formed in the vicinity of the connection between the door frame of the door and the door panel, the door weather strip attached to the door frame and the door weather strip attached to the door panel have different cross-sectional shapes. Even if it can connect smoothly, the appearance of the vicinity of the connection between the door frame and the door panel can be improved, and the mounting base can be securely held.

  The present invention of claim 8 is the door weather strip for automobiles in which the seal portion is a hollow seal portion having a hollow shape.

  In the present invention of claim 8, since the seal portion is a hollow seal portion having a hollow shape, even if there is a variation in dimensions between the door and the periphery of the vehicle body opening, the seal portion is easily deformed and has a large area. It can contact | abut to an opening part periphery and can ensure sealing performance.

  According to a ninth aspect of the present invention, there is provided a door weather strip for automobiles in which the molding part and the extrusion molding part are formed of sponge rubber.

  In the present invention of claim 9, since the molding part and the extrusion molding part are formed of sponge rubber, they have flexibility and elasticity and are easily attached along the shape of the door or the periphery of the vehicle body opening of the automobile. In addition, it is possible to ensure contact and ensure sealing performance.

  An upper base of the mounting base where no hollow slit is formed is provided between the upper tip of the core slit and the upper connection line, and the outer surface of the upper base of the mounting base extends over the entire width of the upper base of the mounting base. Since the mounting base waterstop rib is formed at an angle, the rigidity of the upper base of the mounting base is large. At the upper base of the mounting base, the upper base of the mounting base can be firmly attached to the door frame, etc. In addition, a stable shape can be maintained without any breaks, and rainwater can be reliably discharged.

It is sectional drawing of the vertical side connection part of the door weather strip which is embodiment of this invention, and is sectional drawing along the AA in FIG. It is sectional drawing of the vertical side connection part of the door weather strip which is embodiment of this invention, and is sectional drawing along the BB line in FIG. It is sectional drawing of the vertical side connection part of the door weather strip which is embodiment of this invention, and is sectional drawing along CC line in FIG. It is a bottom view of the vertical side connection part of the door weather strip which is embodiment of this invention. It is a top view of the vertical side connection part of the door weather strip which is embodiment of this invention. It is a side view of a motor vehicle. It is sectional drawing in the state which attached the conventional door weather strip to the door frame upper side of a motor vehicle. It is sectional drawing of the connection part of the conventional opening weather strip. It is a back surface perspective view of the connection part of the corner part of the other conventional opening weather strip. It is a back surface perspective view of the connection part of the corner part of the other conventional opening weather strip. It is a back surface perspective view of the connection part of the corner part of the other conventional opening weather strip.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 6 is a side view of an automobile to which the door weather strip 10 of the present invention is attached. FIG. 5 is an overall front view of the door weather strip 10 attached to the door panel 1 and the door frame 2. 4 is a bottom view of the mounting base 20 of the vertical side connecting portion 15 to be described later, and FIGS. 1 to 3 are cross-sectional views taken along lines AA to CC in FIG. 4, respectively.

The door weather strip 10 is attached to the outer periphery of a door including a door panel 1 and a door frame 2 of an automobile. In the present embodiment, the door weather strip 10 attached to the rear door will be described, but the present invention can be similarly applied to the door weather strip 10 attached to the front door.
The door weather strip 10 is formed of an extrusion molding part formed by extrusion molding and a mold molding part formed by molding for connecting the ends of the extrusion molding part.

  As shown in FIG. 5, the extrusion molding section includes an upper side portion 13 attached to the upper side of the door frame 2, a vertical side upper portion 14 attached to the front side and rear side vertical sides of the door frame 2, and the outer periphery of the door panel 1. The vertical side lower portions 16 and 16 are attached to the front side and rear side vertical sides, and the lower side portion 17 is attached to the lower side of the door panel 1. The lower side portion 17 can also be integrally extruded continuously with the lower side lower portions 16 and 16. Further, the lower side portion 17 may be omitted and only the lower side portions 16 and 16 may be provided.

  The extruded portion that is integrally and integrally extruded with the lower side portion 17 and the lower side lower portions 16 and 16 is bent while being bent along the shape of the outer periphery of the door panel 1. The door panel 1 has a smaller curvature at the corner 12 than the door frame 2, and the cross-sectional shape of the lower side 17 is less complicated than the cross-sectional shape of the upper side 13, so that the door panel 1 can be bent or wrinkled more easily. In particular, there are many cases where there is no connection part that is formed by molding. However, when the curvature of the corner portion 12 is increased, a connection portion formed by mold forming can be used.

The molded part is attached to the corner and the joint of the door frame 2, the corners 12 and 12 connecting the upper side 13 and the upper part 14 of the vertical side, and the vertical side in the vicinity of the joint of the door frame 2 and the door panel 1 on the rear side. It consists of a vertical side connection part 15 that connects the upper part 14 and the vertical side lower part 16. In some cases, the vertical side connection portion 15 is provided in the vicinity of the joint between the door frame 2 on the front side and the door panel 1, but in the present embodiment, the vertical side connection portion 15 is not provided and the vertical side upper portion 14 and the vertical side connection portion 15 are provided. The side lower part 16 is continuously formed integrally.
As will be described later, the extruded part and the molded part each have a mounting base 20 and a hollow seal part 30, but the sectional shape of the molded part is to connect the extruded parts having different sectional shapes. , Gradually changing from one tip to the other tip.

  First, according to an embodiment of the present invention, a vertical side connecting portion 15 that connects a vertical side upper portion 14 and a vertical side lower portion 16 that are attached to the vicinity of a rear side joint of the door frame 2 of the door weather strip 10 of the rear door and the door panel 1 is provided. An example will be described. The same can be applied to the front-side connecting portion and the molded portion attached to the front door. As shown in FIG. 4, an upper connection line 18 is formed at a connection portion between the vertical side upper portion 14 and the vertical side connection portion 15, and a lower connection line 19 is formed at a connection portion between the vertical side lower portion 16 and the vertical side connection portion 15. It is formed.

First, the shape of the substantially central portion of the vertical side connecting portion 15, that is, the portion along the line AA in FIG. 4 will be described with reference to FIG.
As shown in FIG. 1, the vertical side connecting portion 15 of the door weather strip 10 is a hollow base that is integrally formed with the mounting base 20 attached to the door frame 2 and abuts against the vehicle body opening peripheral edge 6. The seal portion 30 is configured.

  The hollow seal portion 30 is formed with a hollow seal protrusion 31 that contacts the door panel 1. The hollow seal portion 30 can seal between the door panel 1 or door frame 2 and the vehicle body opening periphery 6, and the hollow seal protrusion 31 allows the door panel 1 or door frame 2 and the door weather strip 10 to be sealed. Can be sealed.

  The bottom of the mounting base 20 forms a plate-shaped mounting base bottom 21, and the side ends on both sides form mounting base side ends 23, 23. The attachment base side ends 23 and 23 are held by a portion formed by bending a sheet metal of the door panel 1 and having a substantially L-shaped cross section. Mounting base seal protrusions 27 and 27 are formed on both sides of the mounting base side ends 23 and 23 in contact with the door panel 1 so as to extend in the longitudinal direction. The mounting base seal protrusions 27 and 27 can seal between the door panel 1 and the mounting base 20.

  A mounting base hollow portion 22 is formed adjacent to the hollow seal portion 30 inside the mounting base portion 20 of the vertical side upper portion 14 and the vertical side lower portion 16. For this reason, the flexibility of the mounting base 20 is increased, the door weather strip 10 is easily bent along the door frame 2 and the door panel 1, and the weight is further reduced. A hollow seal bridge portion 33 is formed between the hollow seal portion 30 and the mounting base hollow portion 22 to increase the rigidity of the hollow seal portion 30 to prevent abnormal deformation of the hollow seal portion 30. The sealing performance is improved. However, the hollow seal bridge portion 33 is not formed on the attachment base portion 20 of the vertical side connection portion 15 in order to take out the core.

  A core-extracting slit 24 for taking out the core of the mold that forms the hollow seal portion 30 at the time of molding is formed in the attachment base bottom 21. The core removal slit 24 is continuous with the inside of the hollow seal portion 30. That is, since the hollow seal bridge portion 33 is not formed, the mounting base hollow portion 22 and the inside of the hollow seal portion 30 are integrated.

As shown in FIG. 4, the core slit 24 is formed on the side connected to the vertical side upper part 14 from a portion farther downward than the upper connection line 18 and on the side connected to the vertical side lower part 16. , And is formed up to the vicinity of the lower connection line 19. The attachment base bottom side 21 which is a portion where the core slit 24 is not formed from the upper connection line 18 forms a flat attachment base top bottom 26.
For this reason, while being able to provide the core which forms the hollow seal part 30 of the vertical side connection part 15 from the upper connection line 18 to the lower connection line 19, the core can be easily taken out from the core extraction slit 24. it can.

Next, the attachment base upper base portion 26 below the connection portion of the upper connection line 18 will be described with reference to FIG. The door weather strip 10 at the upper base portion 26 of the mounting base is hollow, which is integrally formed with the mounting base 20 and the mounting base 20, respectively, attached to the door frame 2 and in contact with the vehicle body opening peripheral edge 6, as in FIG. The seal portion 30 is configured.
In the connection portion of the upper connection line 18, the cross-sectional shape of the vertical side connection portion 15 is substantially the same as the cross-sectional shape of the vertical side upper portion 14, but the hollow seal bridge portion 33 is formed as in the case of FIG. There is no difference.

The hollow seal portion 30 is formed with a hollow seal protrusion 31 that contacts the door frame 2. The hollow seal portion 30 can seal between the door frame 2 and the vehicle body opening peripheral edge 6, and the hollow seal protrusion 31 can seal between the door frame 2 and the door weather strip 10.
A plurality of hollow seal internal ridges 34 are formed inside the hollow seal portion 30 in the vertical side upper portion 14 and the vertical side connection portion 15 on both sides of the upper connection line 18. The hollow seal inner ridge 34 is formed by molding and strengthens the connection strength of the upper connection line 18.

  A hollow seal lip portion 32 is formed on the distal end side of the hollow seal ridge 31 of the hollow seal portion 30. The hollow seal lip portion 32 is formed by bending in a cross-sectional shape and abuts against a garnish 8 attached to the vehicle body opening periphery 6 to seal between the vehicle body opening periphery 6 and the door frame 2. For this reason, double sealing can be performed by the hollow seal portion 30 and the hollow seal lip portion 32.

  The bottom of the attachment base 20 forms a plate-like attachment base bottom 21, and is a portion where the core removal slit 24 is not formed between the top end of the core removal slit 24 and the upper connection line 18. A mounting base upper base portion 26 is formed. The side ends on both sides form attachment base side ends 23, 23. The door frame 2 has a retainer 3 formed in a substantially U-shaped cross section by bending a sheet metal as shown in FIG. 2 from a portion where the upper side portion 13 is attached to a portion where the attachment base upper base portion 26 is continuously attached. The retainer 3 is fitted with attachment base side ends 23 and 23 of the attachment base bottom 21.

  As shown in FIG. 4, the mounting base upper base portion 26 has a mounting slit described later, without the core slit 24 when the mounting base side ends 23 and 23 are fitted and held on both sides of the retainer 3. Since the base water stop rib 25 is also provided, the two can be combined, have high rigidity and can be held firmly, and do not come off the retainer 3.

  As shown in FIG. 4, mounting base waterstop ribs 25 are formed obliquely on the outer surface of the mounting base upper base portion 26 so as to extend from one end of the mounting base upper base portion 26 to the other end. In the mounting base upper base portion 26, since there is no core removal slit 24, the rigidity of the mounting base 20 is high, and the mounting base waterstop rib 25 is not cut by the core removal slit 24 in the middle, and has a stable shape. Can be maintained, and rainwater can be reliably discharged without leaking from the core removal slit 24 and the attachment base water stop rib 25.

  When the door weather strip 10 is attached to the outer periphery of the door, the attachment base water blocking rib 25 contacts the outer peripheral surface of the door frame 2 or door panel 1 of the door. Rainwater or the like that has entered between the two can be reliably discharged by the mounting base water stop ribs 25.

  As shown in FIG. 4, the tip of the attachment base seal protrusion 27 formed at the vehicle outer side end of the attachment base upper base portion 26 is formed to be continuous with the vehicle outside tip of the attachment base water blocking rib 25. Is done. In the portion of the mounting base upper base portion 26, the mounting base seal protrusion 27 on the vehicle outer side is not formed, and the mounting base seal protrusion 27 formed on the side end of the mounting base upper base portion 26 on the vehicle inner side is attached. The base water stop rib 25 is connected to the front end of the vehicle inner side and extends in the direction of the upper connecting line 18 from the front end of the attachment base water stop rib 25, and is attached to the vehicle outer surface of the attachment base bottom side portion 21 of the vertical side upper part 14. It is continuous with the formed mounting base seal protrusion 27.

  For this reason, rainwater or the like that has entered between the mounting base 20 of the vertical side upper part 14 and the outer periphery of the door frame 2 is attached to the mounting base seal of the vertical side upper part 14 that extends from the tip of the mounting base water stop rib 25. It is formed so that it is received so that it does not enter the inside of the vehicle at a portion continuous with the protrusion 27, and flows to the outside of the vehicle along the inclination of the attachment base water stop rib 25, so as to be continuous with the tip of the attachment base seal protrusion 27. From the rear side, it can be discharged to the outside of the vehicle.

Next, the shape of the vertical side lower portion 16 in the connection portion of the lower connection line 19 will be described with reference to FIG. At the connection portion of the lower connection line 19, the cross-sectional shape of the vertical side connection portion 15 is substantially the same as the cross-sectional shape of the vertical side lower portion 16, but a hollow seal bridge portion 33 is provided as in the case of FIG. There is no difference.
As shown in FIG. 3, the lower part 16 of the vertical side of the door weather strip 10 is formed integrally with the mounting base 20 attached to the door outer panel 2 a of the door panel 1 and the mounting base 20, and is formed on the peripheral edge 6 of the vehicle body opening. It is comprised from the hollow seal part 30 which contact | abuts.

In the portion near the lower connection line 19 of the vertical side connection portion 15, the hollow seal portion 30 is formed with a hollow seal lip portion 32 that contacts the door outer panel 2 a of the door panel 1. The hollow seal portion 30 can seal between the door panel 1 and the vehicle body opening periphery 6, and the hollow seal protrusion 31 can seal between the door panel 1 and the door weather strip 10.
A plurality of hollow seal internal ridges 34 are formed in the hollow seal portion 30 in the vertical side lower portion 16 and the vertical side connection portion 15 on both sides of the lower connection line 19, similarly to the vertical side upper portion 14. The hollow seal inner ridge 34 is formed by molding, and strengthens the connection strength of the lower connection line 19.

  The bottom of the mounting base 20 forms a plate-shaped mounting base bottom 21, and the side ends on both sides form a mounting base side end 23. Mounting base seal protrusions 27 are formed on the lower surfaces of the mounting base side ends 23, 23 and are in contact with the door panel 1. The sealing performance between the door panel 1 and the mounting base 20 can be improved by the mounting base seal protrusions 27 of the mounting base side ends 23 and 23.

  In addition, a clip or a double-sided adhesive tape can be attached to part or all of the back surface of the attachment base 20 of the lower side 17 and the vertical side lower part 16 instead of the retainer 3. In this case, a clip is attached by being fitted into an attachment hole formed in the door panel 1, or a double-sided adhesive tape is attached to the door panel 1. If the double-sided adhesive tape is used, it can be directly adhered to the outer periphery of the door panel 1, and the weight of the vehicle and the efficiency of the mounting operation can be improved.

  Next, a method for manufacturing the door weather strip 10 will be described. In the door weather strip for automobiles such as the door weather strip 10 for the front door, the door weather strip for the rear door, and the back door weather strip, the manufacturing method is substantially the same, and the door weather strip 10 for the rear door. Will be described as an example.

  In the molding of the extrusion molding portion of the door weather strip 10 to be attached to the door frame 2 and the door panel 1, synthetic rubber or thermoplastic elastomer is used as a molding material. For example, EPDM rubber is used for synthetic rubber, and polyolefin is used for thermoplastic elastomer. A thermoplastic elastomer or the like is used. In order to improve flexibility, it is preferable to foam these materials and use them as sponge materials.

  In the case of synthetic rubber, it is conveyed to a vulcanizing tank after extrusion and heated by hot air or high frequency to vulcanize and foam. In the case of a thermoplastic elastomer or soft synthetic resin, it is heated and foamed simultaneously with or after extrusion, and then cooled and solidified. Thereafter, it is cut to a predetermined length to produce an extruded part.

  Next, the vertical side connection portion 15 is molded by molding by cutting the vertical side upper portion 14 and the vertical side lower portion 16 manufactured as described above into predetermined dimensions, and each of the cut ends is connected to the vertical side connection portion. 15 is sandwiched between molds to be molded by molding, and a sponge material or a solid material for forming the vertical side connection portion 15 is injected into the cavity of the mold. The cross-sectional shape of the vertical side connecting portion 15 is substantially the same as the cross-sectional shapes of the vertical side upper portion 14 and the vertical side lower portion 16 at the respective leading ends. It is preferable to use the same type of molding material as the material used for the vertical side upper part 14 and the vertical side lower part 16.

  In the case of synthetic rubber, the mold is poured into a mold, and then the mold is heated to vulcanize and foam. At this time, since the extrusion molding part and the molding part can be vulcanized and bonded using the same material or the same type of material, they are integrally fixed. In the case of a thermoplastic elastomer or a soft synthetic resin, since the injected material is melted when injected into the mold, the extruded part and the molded part are integrally fused by the heat and pressure.

DESCRIPTION OF SYMBOLS 10 Door weather strip 14 Vertical side upper part 15 Vertical side connection part 16 Vertical side lower part 20 Mounting base 21 Mounting base bottom part 23 Mounting base side edge 24 Core removal slit 25 Mounting base water stop rib 26 Mounting base upper bottom part 27 Installation Base seal protrusion 30 Hollow seal part

Claims (9)

A door weather strip that is attached to the outer periphery of a door of an automobile and seals between an opening of a vehicle body of the automobile and the door. The door weather strip includes an extrusion molding portion formed by extrusion molding, and the extrusion molding portion. Formed from a molding part formed by molding, and the extrusion molding part and the molding part are respectively attached to an outer periphery of the door and a mounting base part integrally formed on the mounting base part. A seal part that contacts and seals the periphery of the opening; the attachment base has a plate-like attachment base bottom that opposes the outer periphery of the door; and the extruded part is at least on the upper periphery of the door. An upper side portion to be attached and a vertical side portion to be attached to a vertical side of the outer periphery of the door, the vertical side portion being an upper portion of the vertical side to be attached to an upper portion of the vertical side of the outer periphery of the door and an outer periphery of the door Vertical side of The molding part is composed of a corner part attached to a corner on the outer periphery of the door, and a vertical part connecting the upper part of the vertical side and the lower part of the vertical side in the middle of the vertical part. The vertical side connection part is formed by connecting the upper part of the vertical side and the vertical side connection part as an upper connection line, and connecting the lower part of the vertical side and the vertical side connection part. Is formed as a lower connecting line, and a cored slit extending in the longitudinal direction is formed in the mounting base, and the hollowed slit is formed between the upper end of the cored slit and the upper connecting line. A mounting base top bottom portion is provided, and a mounting base waterstop rib is formed on the outer surface of the mounting base top bottom portion diagonally over substantially the entire width of the mounting base top bottom portion. Mounting base formed on the side edge of The mounting ridge is formed to be continuous with the vehicle outer side portion of the mounting base water stop rib, and the mounting base seal ridge formed on the vehicle inner side end of the mounting base upper base is the mounting base. A door weather strip for an automobile, characterized in that it is formed so as to extend in the direction of the upper connecting line from the front end of the base water stop rib .   2. The automotive door weather strip according to claim 1, wherein when the door weather strip is attached to the outer periphery of the door, the attachment base water blocking rib contacts the outer peripheral surface of the door.   3. The automotive door weather strip according to claim 1, wherein the mounting base upper bottom portion is held by a retainer having both mounting base side ends formed on the outer periphery of the door.   The automobile door weather strip according to any one of claims 1 to 3, wherein mounting base seal protrusions are formed on both side ends of the outer surface of the base of the mounting base.   The mounting base seal projecting ridge formed on one side end of the mounting base upper base is formed to be continuous with one tip of the mounting base waterstop rib, and the other of the mounting base upper base 5. The automotive door weather strip according to claim 4, wherein the attachment base seal projecting ridge formed at a side end extends in the upper connection line direction from the other end of the attachment base water stop rib.   The upper part of the vertical side and the lower part of the vertical side have different cross-sectional shapes, the upper part of the vertical side is held by a retainer formed on the outer periphery of the door, and the lower part of the vertical side is a clip attached to the mounting base or The automobile door weather strip according to any one of claims 1 to 5, which is held by a double-sided adhesive tape.   The automobile door weather strip according to any one of claims 1 to 6, wherein the vertical side connecting portion is formed in the vicinity of a connection between a door frame of the door and a door panel.   The automobile door weather strip according to any one of claims 1 to 7, wherein the seal portion is a hollow-shaped hollow seal portion.   The automobile door weather strip according to any one of claims 1 to 8, wherein the molding part and the extrusion part are formed of sponge rubber.

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