JP2010234998A - Mounting structure of door weatherstrip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a door weatherstrip for preventing water leakage to the cabin inside. <P>SOLUTION: This door weatherstrip includes a mounting base part 11 mounted along a peripheral edge part of a door 2, a hollow seal part 12 and a sub-seal part 13. The door 2 is formed by being welded by inserting an end of a door sash 55 inside a door panel 51, and the door weatherstrip has a die forming part 7 corresponding to such a welding part. In the hollow seal part 12 of the die forming part 7, a vehicle inside wall part 73 dislocated from the tip 71 in the projecting direction of the hollow seal part 12 is brought into pressure contact in a surface with a peripheral edge part of a door opening part 1a when closing the door 2. A thick part 74 larger in a thickness than the vehicle inside wall part 73 of the hollow seal part 12, is formed in a tip part 72 in the projecting direction of the hollow seal part 12, in a section between a sash corresponding part having the sub-seal part 13 above a belt line among the die forming part 7 and a panel corresponding part 42 nonexistent in a lower sub-seal part 13. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a door weather strip mounting structure that is mounted on a vehicle door.

  Generally, a door weather strip is attached to a peripheral portion of a door that opens and closes a door opening formed in a body of an automobile or the like. The door weather strip includes an attachment base portion that is attached to a retainer portion of a door sash provided along the peripheral edge portion of the door at an upper side portion of the door, and a hollow seal portion that is integrally formed with the attachment base portion and has a hollow portion. ing. In the lower side of the door, a plurality of clips are provided at a predetermined interval on the mounting base, and the mounting base is mounted on the peripheral edge of the door panel by these clips. In addition, the upper side portion of the door includes a sub-seal portion that extends from the upper portion of the mounting base toward the outer periphery of the door on the vehicle outer side than the hollow seal portion in order to improve sealing performance and suppress wind noise. Things are also known. When the door is closed, the hollow seal portion and the sub seal portion of the door weather strip are brought into pressure contact with the peripheral edge portion of the door opening of the automobile body, thereby sealing between the door and the automobile body.

  By the way, in general, with respect to the portion of the door weather strip that is attached to the door panel below the door belt line, the sub-seal portion is omitted in order to improve the design. That is, the door weather strip includes a molded part corresponding to the connection part between the door sash and the door panel that divides the window part of the door, and the sectional shape of the sub seal part is gradually changed in the molded part, The sub seal part is omitted from directly under the belt line.

  However, regarding the portion of the molded portion where the sub-seal portion is not provided, water may directly hit the hollow seal portion through the welded portion between the door sash and the door panel during high-pressure car washing or the like. In particular, with respect to the molded part, it is necessary to form a slit for extracting the core mold for molding the inner surface of the hollow seal part, etc., on the mounting base, and this causes the shape of the molded part. It becomes difficult to maintain. Therefore, when water hits the hollow seal portion directly, the hollow seal portion is deformed, and there is a risk that water may enter the vehicle interior side from between the hollow seal portion and the automobile body (periphery of the door opening). is there.

  Also, for example, when the door is closed, when the hollow seal portion and the peripheral edge of the door opening are pressed together, a substantially triangular gap is formed between the two, and when the gap is relatively large, There is a risk that water or the like may easily enter the vehicle interior via the gap.

  On the other hand, there is a technique in which a pad is inserted inside the hollow seal portion to increase the sealing force of the hollow seal portion (for example, see Patent Document 1).

Japanese Utility Model Publication No. 6-62314

  However, when the pad is inserted inside the hollow seal portion, there is a risk that the manufacturing workability may be reduced and the cost may be increased, and the repulsive force of the hollow seal portion becomes too large, and the door is relatively large when closing the door. There is a risk that it will require power. Moreover, even if a pad is inserted inside the hollow seal portion, the substantially triangular gap formed between the hollow seal portion and the peripheral edge of the door opening cannot be reduced when the door is closed. Still, there is a concern that water or the like may enter the vehicle interior via the gap in a portion where the sub seal portion is not provided.

  The present invention has been made to solve the above-mentioned problems, and its purpose is to improve the sealing performance at the welded portion between the door sash and the door panel and to prevent water leakage to the vehicle interior side. Another object of the present invention is to provide a door weather strip mounting structure.

  In the following, each means suitable for solving the above-described problems will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. An attachment base attached along the periphery of the vehicle door;
A hollow seal portion integrally formed with the mounting base and having a hollow portion;
A rear seal portion that extends from a portion of the mounting base portion on the outer peripheral side of the door to the outer side of the vehicle outside the hollow seal portion, contacts the inner surface of the door sash that defines the window portion, and the outer peripheral edge of the door panel;
A sub seal portion extending from the mounting base to the door outer peripheral side at the vehicle outer side than the hollow seal portion at the upper side portion of the door and at the vehicle inner side than the back seal portion;
When the door is closed, the hollow seal portion and the sub seal portion are in pressure contact with the peripheral edge portion of the door opening formed in the vehicle main body, and the door weather is sealed between the vehicle main body and the door. A strip mounting structure,
The door is formed by welding the terminal portion of the door sash to the inside of the door panel and being welded to the door panel.
The door weather strip includes a molded part at a corner part corresponding to a welded part between the door sash and the door panel,
When the door is closed, the hollow seal portion of the mold forming portion has a vehicle inner side wall portion that is a portion on the inner side of the vehicle that is off the top portion that is the front end in the protruding direction of the hollow seal portion, at the peripheral portion of the door opening portion. Pressure contact with the surface,
Of the mold forming portion, the sub seal portion is not present in the panel corresponding portion arranged below the belt line,
The hollow seal including the top portion in a section straddling the boundary portion between the panel corresponding portion and the sash corresponding portion which is disposed above the belt line and provided with the sub seal portion in at least the mold forming portion In the projecting direction tip part of the part, the tip part is bulged inside the hollow seal part, thereby forming a thick part that is thicker than the inner wall part of the hollow seal part. The door weather strip mounting structure.

  According to the means 1, the thick part is formed at the projecting direction tip part of the hollow seal part of the molded part. For this reason, the rigidity of the front-end | tip part of a hollow seal part is improved, and the vehicle interior side wall part of a hollow seal part can be more press-contacted to the peripheral part (vehicle main body) of a door opening part at the time of a door closing. Furthermore, since the thick portion is formed with respect to the tip portion of the hollow seal portion, it is possible to prevent the tip portion of the hollow seal portion from being deformed so as to swell outward. On the other hand, the inner wall portion of the vehicle can be deformed relatively smoothly and brought into contact with the surface when pressed against the peripheral edge of the door opening. Therefore, the substantially triangular gap formed between the hollow seal portion (boundary portion between the tip portion of the hollow seal portion and the vehicle interior side wall portion) and the peripheral edge portion of the door opening can be reduced as much as possible. It is possible to prevent a situation in which water or the like enters the vehicle interior side through the gap.

  Moreover, compared to the case where a pad or the like is inserted inside the hollow seal portion to increase the sealing force of the hollow seal portion, it is possible to suppress a decrease in manufacturing workability and an increase in cost, and the repulsive force of the hollow seal portion is large. It can be avoided that a relatively large force is required to close the door due to being too much.

  Furthermore, since the hollow seal portion is formed with a thick wall portion, it becomes difficult for the hollow seal portion to be deformed even when the hollow seal portion is subjected to water pressure, so that the back seal portion is tilted with the deformation of the hollow seal portion. In this way, it is possible to prevent a situation in which the sealing performance between the rear seal portion and the door sash is lowered due to deformation.

  In addition, since the thick wall portion is formed by causing the tip portion of the hollow seal portion to bulge inside the hollow seal portion, for example, the thick portion is formed by forming a protrusion on the outer surface of the hollow seal portion. As in the case of forming the meat part, it is possible to avoid the possibility of causing a decrease in designability.

  Of the molded part, the back seal part of the section in which the thick part is formed in the hollow seal part, the welded part, the door sash and the vehicle inner side surface of the outer peripheral edge of the door panel It is good also as being press-contacted in series. In this case, it is possible to suppress as much as possible a situation in which water enters the vehicle interior side through a gap formed between the back seal portion and the welded portion.

  Mean 2. 2. The door weather strip mounting structure according to claim 1, wherein a concave portion is formed in the thick portion.

  According to the means 2, by forming the concave portion in the thick portion, there is a risk that molding distortion or the like may occur as in the case where the entire distal end portion of the hollow seal portion is uniformly thick. While suppressing, the rigidity of the front-end | tip part of a hollow seal part can be improved.

  Note that a plurality of protrusions extending along the circumferential direction of the hollow seal portion or the longitudinal direction of the mold forming portion may be provided on the inner surface of the hollow seal portion with a predetermined interval therebetween. Moreover, it is good also as a substantially cylindrical convex part being provided in the inner surface of a hollow seal part for every predetermined interval along the longitudinal direction of a shaping | molding part. When the former configuration is employed, the portion provided with the protrusions corresponds to the thick portion, and when the latter configuration is employed, the portion provided with the convex portion corresponds to the thick portion. Moreover, the site | part between mutually adjacent protrusions (convex part) corresponds to a recessed part.

  Means 3. The door weather strip mounting structure according to claim 1 or 2, wherein the thick portion is formed up to an upper end portion of the mold forming portion or in the vicinity of the upper end portion.

  According to the means 3, it is easy to maintain the shape of the molded part in which the slit for extracting the core mold that forms the inner surface of the hollow seal part in the attachment base part is formed over the entire longitudinal direction. Therefore, it is possible to improve the sealing performance of the molded part.

It is a perspective view of a car with a rear door in an open state. It is a front view of a door weather strip. It is the JJ sectional view taken on the line of FIG. 2 which shows a door weather strip. It is a front view of a molding part. It is the KK sectional view taken on the line of FIG. 4 which shows a door weather strip. It is the LL sectional view taken on the line of FIG. 4 which shows a door weather strip. It is the MM sectional view taken on the line of FIG. 4 which shows a door weather strip. It is the NN sectional view taken on the line of FIG. 4 which shows a door weather strip. It is the OO sectional view taken on the line of FIG. 4 which shows a door weather strip. It is a model perspective view which shows the inner surface of a hollow seal part. It is a model perspective view which shows the inner surface of the hollow seal part in another embodiment.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, an automobile M as a vehicle has an automobile door that opens and closes a door opening 1a formed in an automobile body 1 (vehicle body) (rear door in the figure: hereinafter simply referred to as “door 2”). Is provided. A door weather strip 3 is attached to the outer peripheral edge of the door 2 to seal between the door 2 and the peripheral edge of the door opening 1a when the door 2 is closed. In addition, the door 2 is provided with a glass weather strip (belt line molding 9) along the belt line.

  As will be described in detail later, the door 2 includes an inner panel 52 and an outer panel 53 (see FIG. 8 and the like), and a door panel 51 provided with a door glass G or the like between the panels 52 and 53, and the door 2 Door sash 55 (see FIG. 3 and the like) for partitioning the window portion W of the door sash 55, a terminal on the rear side of the door sash 55 is inserted inside the door panel 51 (see FIG. 7), and the terminal of the door sash 55 and the door panel It is comprised by welding 51.

  As shown in FIG. 2, the door weather strip 3 is disposed along the extruded portion 4 disposed along the upper edge portion of the door 2, and the longitudinal edge portion and the lower edge portion before and after the door 2. Provided with an extrusion molding portion 5 and mold forming portions (portions provided with a dotted pattern) 6 and 7 for connecting the ends of the extrusion molding portions 4 and 5, and is configured in a substantially annular shape as a whole. Yes. The extrusion molding parts 4 and 5 are formed in a long shape by an extrusion molding machine (not shown). The mold forming parts 6 and 7 are disposed at the corners of the door 2 and are formed by a predetermined mold device so as to connect the end parts of the adjacent extruded parts 4 and 5 to each other. In this embodiment, the door weather strip 3 is made of sponge EPDM (ethylene-propylene-diene copolymer rubber). Moreover, the site | part of the upper edge part of the door 2 is a hypotenuse part which inclines downward toward back.

  As shown in FIG. 3, the extrusion molding portion 4 is attached to a door sash 55 (specifically, a retainer portion DR having a substantially C-shaped cross section described later) provided along the outer peripheral edge of the door 2. And a hollow seal portion 12 which is formed on the vehicle inner side of the mounting base 11 and on the outer peripheral side of the door 2 and has a hollow portion 12a inside, and the mounting base 11 on the vehicle outer side than the hollow seal portion 12. A sub seal portion 13 extending from the base 2 to the outer peripheral side of the door 2 and a back seal portion 14 extending outward from the mounting base 11 at the base portion of the sub seal portion 13 on the vehicle outer side than the sub seal portion 13. . In this embodiment, the attachment base 11, the hollow seal portion 12, the sub seal portion 13, and the back seal portion 14 are all simultaneously formed of the same material by extrusion molding. When the door 2 is closed, the hollow seal portion 12 and the sub seal portion 13 are in pressure contact with the peripheral edge portion of the door opening 1 a of the automobile body 1, thereby sealing between the automobile body 1 and the door 2.

  The mounting base portion 11 includes a substantially flat bottom plate portion 11a, a vehicle outer side wall portion 11b extending from the vehicle outer side portion of the upper surface of the bottom plate portion 11a toward the outer peripheral side of the door 2, and a vehicle outer side wall portion 11b. A bridge portion 11c is provided to connect the front end portion and a portion of the upper surface of the bottom plate portion 11a on the vehicle interior side. In addition, the connecting portions of the vehicle outer side wall portion 11b and the bottom plate portion 11a, and the bridge portion 11c and the bottom plate portion 11a are respectively inside the side portions of the bottom plate portion 11a (the center side of the bottom plate portion 11a in the vehicle outside direction). Accordingly, the bottom plate portion 11a includes an inner side piece portion 21 positioned on the inner side of the vehicle with respect to the bridge portion 11c, and an outer side piece portion 22 positioned on the outer side of the vehicle with respect to the outer side wall portion 11b. Is formed. In addition, in this embodiment, the hollow seal portion 12 extends from the connecting portion between the vehicle outer side wall portion 11b and the bridge portion 11c and the connecting portion between the bottom plate portion 11a and the bridge portion 11c to the inside of the vehicle and the door 2. Is curved so as to be convex toward the outer peripheral side.

  As shown in FIG. 3, the door sash 55 includes a retainer portion DR having a substantially C-shaped cross section. The retainer portion DR is the door 2 of the bottom plate portion 11 a of the mounting base portion 11 of the door weather strip 3. A bottom wall portion 32 facing the inner peripheral surface of the vehicle, a vehicle inner side locking portion 33 that extends upward from the vehicle inner side edge of the bottom wall portion 32 and has a distal end side bent toward the vehicle outer side, and a bottom wall portion 32. And a vehicle outer side engaging portion 34 that extends upward from the vehicle outer side end edge and is bent at the front end side toward the vehicle inner side. The door sash 55 is folded back from the leading edge of the vehicle outer side locking portion 34 to the outer peripheral side of the door 2 of the vehicle outer side locking portion 34 and extends toward the vehicle outer side, and the vehicle outer side end of the folding portion 35. And a vertical wall portion 36 extending from the edge toward the outer peripheral side of the door 2. Further, the front-side portions of the vehicle inner side latching portion 33 and the vehicle outer side latching portion 34, and the folded portion 35 extend in a direction substantially orthogonal to the mounting direction of the door weather strip 3. In addition, the folding | returning part 35 is located in the inner peripheral side of the door 2 rather than the back surface seal part 14 in the attachment state of the door weather strip 3. FIG.

  Then, the bottom plate portion 11 a of the mounting base portion 11 of the door weather strip 3 is fitted inside the bottom wall portion 32 of the retainer portion DR of the door sash 55, the vehicle inner side locking portion 33, and the vehicle outer side locking portion 34. Thus, the vehicle interior piece 21 of the attachment base 11 (bottom plate portion 11a) is engaged with the vehicle interior engagement portion 33, and the vehicle exterior piece 22 is engaged with the vehicle exterior engagement portion 34. Further, the tip portion of the back seal portion 14 abuts on the vertical wall portion 36.

  The extruded portion 5 basically has the same cross-sectional shape as the extruded portion 4, and includes an attachment base 11, a hollow seal portion 12, a back seal portion 14, and the like. However, the sub seal part 13 is omitted with respect to the extruded part 5.

  Moreover, as shown in FIG. 8 etc., in the door panel 51, the retainer part DR which was provided in the door sash 55 is abbreviate | omitted for reasons, such as weight reduction. For this reason, with respect to the portion of the door weather strip 3 that is attached to the door panel 51, clips provided at predetermined intervals along the longitudinal direction of the door weather strip 3 are folded back to the outside of the inner panel 52. It is attached to the door 2 by being fitted into an attachment hole formed in the part (not shown). Further, the portion of the door weather strip 3 that is attached to the door panel 51 is formed by folding the inner panel 52 to the outer peripheral side of the door 2 outside the door weather strip 3 attached to the door panel 51. The front end portion of the back seal portion 14 is pressed against the vertical wall portion 36 thus formed.

  Note that rainwater or the like flows almost directly below the door 2 so that there is little risk of entering the vehicle interior from between the mounting base 11 and the door sash 55 and door panel 51. Even with only clips that are opened intermittently, the sealing performance is sufficiently secured.

  On the other hand, for the upper edge portion (and the oblique side portion) of the door 2, it is possible to sufficiently secure the sealing property between the door weather strip 3 and the door sash 55 only by fixing with the clip. difficult. For this reason, the retainer part DR is basically provided as described above for the part.

  Now, in this embodiment, the belt line is set in the position of the XX line shown with the dashed-two dotted line of FIG. 4, and the terminal (on the side arrange | positioned in the oblique side part of the door 2 among the extrusion molding parts 4 ( The mold forming portion 7 that connects the rear end) and the extrusion forming portion 5 is disposed so as to straddle the belt line (the portion corresponding to the belt line molding 9) vertically. In particular, in the present embodiment, a portion corresponding to the oblique side portion of the door 2 in the mold forming portion 7 (a portion inclined downward toward the rear) intersects with the belt line.

  Further, in this embodiment, the hollow seal portion 12 of the mold forming portion 7 is a vehicle inner wall portion that is a portion on the vehicle inner side that is out of the top portion 71 that is the front end in the protruding direction of the hollow seal portion 12 when the door 2 is closed. 73 is configured to be in pressure contact with the peripheral edge of the door opening 1a. That is, the mold forming portion 7 is a bending type in which the hollow seal portion 12 is deformed so as to tilt when pressed against the automobile body 1.

  As shown in FIG. 5 and the like, regarding the portion provided below the belt line (hereinafter referred to as the sash-corresponding portion 41) in the mold forming portion 7, basically the same cross-sectional shape as that of the extrusion forming portion 4 is used. The sash-corresponding portion 41 is provided with a sub seal portion 13 that extends continuously from the sub seal portion 13 of the extrusion molding portion 4.

  As shown in FIG. 9 and the like, a portion (hereinafter referred to as a panel corresponding portion 42) provided below the belt line in the mold forming portion 7 basically has the same cross-sectional shape as that of the extrusion forming portion 5. There is no. That is, the sub-seal portion 13 is omitted from the panel corresponding portion 42 as in the case of the extrusion molding portion 5, thereby improving the design. Incidentally, the cross-sectional shape of the sub seal portion 13 gradually changes at the connecting portion between the sash corresponding portion 41 and the panel corresponding portion 42.

  Further, slits 43 for extracting a core mold that forms the inner surface of the hollow seal portion 12 and the like are formed in the attachment base portion 11 of the mold forming portion 7 in substantially the entire longitudinal direction of the mold forming portion 7. For the same reason, the bridge 11c is omitted with respect to the molded part 7.

  Further, as shown in FIG. 7, in this embodiment, the terminal on the rear side of the door sash 55 is inserted into the door panel 51 (between the inner panel 52 and the outer panel 53) from the belt line, and the door sash 55. The terminal and the door panel 51 are welded.

  Further, as shown in FIG. 6, in the vicinity of the welded portion of the door sash 55 with the door panel 51, the vehicle outer side locking portion 34 and the turn-back portion 35 protrude toward the terminal on the rear side of the door sash 55. The length is getting shorter. In addition, in the terminal on the rear side of the door sash 55, the interior locking portion 33 is also omitted. As a result, the terminal on the rear side of the door sash 55 can be inserted inside the door panel 51 as described above.

  Now, the hollow seal portion 12 of the mold forming portion 7 is thicker than the vehicle interior side wall portion 73 in pressure contact with the peripheral edge portion of the door opening 1a when the door 2 is closed at the projecting-direction tip portion 72 including the top portion 71. The large thick portion 74 is provided. More specifically, as shown in FIG. 10, in the present embodiment, the hollow seal portion 12 protrudes from the distal end portion 72 to the inside (hollow portion 12 a side) of the hollow seal portion 12, and extends along the circumferential direction of the hollow seal portion 12. An extending protrusion 75 is formed, and a portion where the protrusion 75 is formed is a thick portion 74. In addition, the thick portion 74 is formed at predetermined intervals in the longitudinal direction of the mold forming portion 7, thereby forming a recess 76 between the adjacent thick portions 74. Further, the thickness of the portion of the hollow seal portion 12 corresponding to the concave portion 76 is substantially the same as that of the vehicle interior side wall portion 73. In addition, the thickness of the outer wall 77 of the hollow seal portion 12 is substantially the same as that of the inner wall 73.

  In addition, the formation section of the thick portion 74 is set so as to straddle the sash corresponding portion 41 where the sub seal portion 13 is provided and the panel corresponding portion 42 where the sub seal portion 13 is not provided. In particular, in this embodiment, the formation section of the thick portion 74 is set up to a position near the upper end portion of the mold forming portion 7. When the door 2 is closed, the interior wall 73 of the hollow seal portion 12 that bulges further toward the vehicle interior than the distal end portion 72 abuts on the peripheral edge of the door opening 1a and deforms in a follow-up manner. Then, while being in pressure contact with the peripheral edge portion, the inner edge of the front end portion 72 where the thick portion 74 is formed comes into pressure contact with the peripheral edge portion of the door opening 1a. In addition, in the present embodiment, the back seal portion 14 in the section of the molded portion 7 where the thick portion 74 is formed in the hollow seal portion 12 is the welded portion between the door sash 55 and the door panel 51. The door sash 55 and the door panel 51 are pressed against each other in series.

  The panel corresponding portion 42 is arranged in the vicinity of the rear edge of the vehicle outer surface of the door 2 for the convenience of connection at the upper end portion. It is arranged on the circumferential side and inside the vehicle.

  Further, the mold forming part 6 different from the mold forming part 7 basically has the same cross-sectional shape as the extrusion molded part 4, and includes an attachment base 11, a hollow seal part 12, a back seal part 14, and the like. . However, the sub-seal portion 13 is omitted for the portion corresponding to the front vertical edge portion of the door 2 in the molded portion 6.

  As described above in detail, in the present embodiment, the thick portion 74 is formed at the distal end portion 72 in the protruding direction of the hollow seal portion 12 of the molded portion 7. For this reason, the rigidity of the front-end | tip part 72 of the hollow seal part 12 is improved, and the vehicle interior side wall part 73 of the hollow seal part 12 can be more firmly press-contacted to the peripheral part of the door opening 1a when the door 2 is closed. Furthermore, with respect to the distal end portion 72 of the hollow seal portion 12, since the thick portion 74 is formed, it is possible to prevent a situation in which the distal end portion 72 of the hollow seal portion 12 is deformed so as to expand outward. it can. On the other hand, the inner wall portion 73 can be deformed relatively smoothly and brought into contact with the surface when pressed against the peripheral edge of the door opening 1a. Therefore, the substantially triangular gap formed between the hollow seal portion 12 (the boundary portion between the distal end portion 72 of the hollow seal portion 12 and the vehicle interior side wall portion 73) and the peripheral portion of the door opening 1a is minimized. It is possible to prevent such a situation that water or the like enters the vehicle interior via the gap.

  Further, compared to the case where a pad or the like is inserted inside the hollow seal portion 12 to increase the sealing force of the hollow seal portion 12, it is possible to suppress a decrease in manufacturing workability and an increase in cost, and the repulsion of the hollow seal portion 12 can be suppressed. It is possible to avoid the possibility that a relatively large force is required when closing the door 2 due to the force becoming too large.

  Furthermore, since the thick seal portion 74 is formed in the hollow seal portion 12, the hollow seal portion 12 is hardly deformed even when the hollow seal portion 12 receives water pressure. It is possible to prevent a situation in which the seal portion 14 is deformed so as to be tilted and the sealing performance between the back seal portion 14 and the door sash 55 is lowered.

  Moreover, since the thick part 74 is comprised by forming the protrusion part 75 which protrudes inside the hollow part 12a from the front-end | tip part 72 of the hollow seal part 12, the molding part 7 and the extrusion molding part 4 are comprised. Therefore, it is possible to avoid a situation in which the outer surface shape of the hollow seal portion 12 greatly changes between Therefore, for example, it is possible to avoid a possibility that the design property is deteriorated as in the case where the thick portion 74 is formed by forming the protruding portion on the outer surface of the hollow seal portion 12.

  In addition, in the present embodiment, the back seal portion 14 in the section of the molded portion 7 where the thick portion 74 is formed in the hollow seal portion 12 is the welded portion between the door sash 55 and the door panel 51. The door sash 55 and the door panel 51 are pressed against each other in series. For this reason, the situation where water permeates into the vehicle interior from the gap formed between the back seal part 14 and the welded part can be suppressed as much as possible.

  Further, in the present embodiment, since the plurality of thick portions 74 are provided at a predetermined interval, for example, the entire distal end portion 72 of the hollow seal portion 12 is uniformly thickened. The rigidity of the distal end portion of the hollow seal portion 12 can be increased while suppressing the fear that molding distortion or the like will occur.

  In addition, in this embodiment, the thick portion 74 is formed up to the vicinity of the upper end portion of the mold forming portion 7. For this reason, it becomes easy to maintain the shape of the molding part 7 in which the slit 43 is formed in the attachment base 11 over the entire longitudinal direction. Therefore, it is possible to improve the sealing performance of the molded part 7. Incidentally, regarding the extrusion molding part 4, it is not necessary to form the slit 43 for extracting the core mold from the attachment base part 11, and the bridge part 11c can be provided. For this reason, the sealing force of the hollow seal portion 12 and the back seal portion 14 is higher than that of the mold forming portion 7. For this reason, there is little possibility that water will permeate the attachment base portion 11 side as compared with the mold forming portion 7, and a sufficient sealing performance is ensured without providing the thick portion 74 or the like.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the thick portion 74 is formed by forming the protrusion 75 extending along the circumferential direction of the hollow seal portion 12 with respect to the hollow seal portion 12. It is not limited to a simple configuration. However, if the entire distal end portion 72 is thick, there is a high possibility that molding distortion or the like will occur. Therefore, it is desirable to provide the thick portions 74 at predetermined intervals or to form the concave portions 76 at predetermined intervals. For example, as shown in FIG. 11, cylindrical convex portions 81 having concave portions 76 on the inside may be provided at predetermined intervals in the longitudinal direction of the mold forming portion 7. In this case, the formation site of the convex portion 81 in the hollow seal portion 12 corresponds to the thick portion 74. Further, for example, the protrusions 75 may be formed so as to extend along the longitudinal direction of the molded part 7, or the protrusions 75 may be formed in a lattice shape.

  Further, although not particularly mentioned in the above embodiment, “the boundary portion between the distal end portion 72 and the vehicle interior side wall portion 73 is angular in the outer peripheral surface of the hollow seal portion 12 in which the thick portion 74 is formed”. It is good. In this case, when the door 2 is closed, the peripheral portion of the hollow seal portion 12 and the door opening 1a is compared with the case where the boundary portion between the distal end portion 72 of the hollow seal portion 12 and the vehicle interior side wall portion 73 is rounded. It is possible to more reliably prevent a situation in which a substantially triangular gap is formed between the two. Further, “the inner part of the front end part 72 is a direction substantially perpendicular to the contact part of the peripheral edge of the door opening 1a when the door is closed, or the outer side of the door 2 toward the inner side. It may be inclined and extend.

  (B) In the said embodiment, although the one extrusion molding part 4 is provided corresponding to the upper side part containing the oblique edge part of the door 2, it respond | corresponds to the upper edge part extended in a substantially horizontal direction among the doors 2. It is good also as providing the extrusion molding part which respond | corresponds to the extrusion molding part to perform, the oblique edge part which inclines downward from the rear-end part of an upper edge part, and the molding part which connects both extrusion molding parts. The above configuration can also be applied to the door weather strip.

  Although not particularly mentioned in the above embodiment, the thick portion 74 of the hollow seal portion 12 of the molded portion 7 is provided up to a portion corresponding to the rear edge portion of the door 2 in the molded portion 7. It is good to be. In this case, in the part where the door weather strip 3 is disposed obliquely, water flows downward from above through the space between the door weather strip 3 and the door sash 55 and enters the vehicle interior side. Such a situation can be prevented more reliably.

  (C) In the above embodiment, the door weather strip 3 of the rear door is embodied, but the present invention can also be applied to a door weather strip attached to other doors such as a front door. In general, with respect to the front door, the front edge of the door sash 55 is inserted inside the door panel 51 and welded to the door panel 51, so that the welded portion between the front edge of the door sash 55 and the door panel 51 is welded. It is desirable to adopt the same configuration as that of the above-described embodiment with respect to the portion to be attached to.

  Moreover, in the said embodiment, although the door weather strip 3 is comprised by EPDM, you may comprise by other raw materials, such as an olefin type thermoplastic elastomer (TPO). Furthermore, in the said embodiment, although the attachment base 11, the hollow seal part 12, the sub seal part 13, and the back seal part 14 are all comprised with the same material, you may use a partially different material. For example, the hollow seal portion 12, the sub-seal portion 13, and the back seal portion 14 may be made of sponge EPDM, and the attachment base portion 11 may be made of solid EPDM or fine foamed sponge EPDM.

  DESCRIPTION OF SYMBOLS 1 ... Automobile body, 1a ... Door opening, 2 ... Door, 3 ... Door weather strip, 4, 5 ... Extrusion molding part, 6, 7 ... Molding part, 11 ... Mounting base part, 12 ... Hollow seal part, DESCRIPTION OF SYMBOLS 13 ... Sub seal part, 14 ... Back seal part, 22 ... Outer side locking piece, 41 ... Sash corresponding part, 42 ... Panel corresponding part, 51 ... Door panel, 55 ... Door sash, 71 ... Top part, 72 ... Tip part, 73 ... Car interior side wall part, 74 ... Thick part, 76 ... Recessed part, DR ... Retainer part, G ... Door glass, M ... Car, W ... Window part.

Claims (3)

An attachment base attached along the periphery of the vehicle door;
A hollow seal portion integrally formed with the mounting base and having a hollow portion;
A rear seal portion that extends from a portion of the mounting base portion on the outer peripheral side of the door to the outer side of the vehicle outside the hollow seal portion, contacts the inner surface of the door sash that defines the window portion, and the outer peripheral edge of the door panel;
A sub seal portion extending from the mounting base to the door outer peripheral side at the vehicle outer side than the hollow seal portion at the upper side portion of the door and at the vehicle inner side than the back seal portion;
When the door is closed, the hollow seal portion and the sub seal portion are in pressure contact with the peripheral edge portion of the door opening formed in the vehicle main body, and the door weather is sealed between the vehicle main body and the door. A strip mounting structure,
The door is formed by welding the terminal portion of the door sash to the inside of the door panel and being welded to the door panel.
The door weather strip includes a molded part at a corner part corresponding to a welded part between the door sash and the door panel,
When the door is closed, the hollow seal portion of the mold forming portion has a vehicle inner side wall portion that is a portion on the inner side of the vehicle that is off the top portion that is the front end in the protruding direction of the hollow seal portion, at the peripheral portion of the door opening portion. Pressure contact with the surface,
Of the mold forming portion, the sub seal portion is not present in the panel corresponding portion arranged below the belt line,
The hollow seal including the top portion in a section straddling the boundary portion between the panel corresponding portion and the sash corresponding portion which is disposed above the belt line and provided with the sub seal portion in at least the mold forming portion In the projecting direction tip part of the part, the tip part is bulged inside the hollow seal part, thereby forming a thick part that is thicker than the inner wall part of the hollow seal part. The door weather strip mounting structure.   2. The door weather strip mounting structure according to claim 1, wherein a concave portion is formed in the thick portion.   3. The door weather strip mounting structure according to claim 1, wherein the thick portion is formed up to an upper end portion or a vicinity of the upper end portion of the mold forming portion.

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