JP2010234996A - Mounting structure of door weatherstrip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a door weatherstrip capable of 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 extending from the mounting base part 11, a sub-seal part 13 and a back face seal part 14. The door 2 is formed by being welded by inserting an end part of a door sash 55 inside a door panel 51, and the door weatherstrip has a die forming part 7 in response to such a welding part. An insert member 45 having a body part 46 embedded in the mounting base part 11 and a holding wall part 47 embedded in the back face seal part 14, is arranged above a belt line in the die forming part 7, and is arranged by straddling a boundary part between a sash corresponding part having the sub-seal part 13 and a panel corresponding part 42 arranged under the belt line and nonexistent in the sub-seal part 13, so that a tip part of the back face seal part 14 embedded with the holding wall part 47, is brought into pressure contact with the welding part. <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.

  The door weather strip includes a back seal portion that extends from the upper portion of the attachment base portion toward the vehicle exterior. Then, by attaching the door weather strip to the peripheral edge of the door, the tip portion of the rear seal portion is in pressure contact with the inner surface of the door sash and the door panel so that the space between the door and the door weather strip is sealed. It has become.

  By the way, the door includes an inner panel and an outer panel, and includes a door panel provided with door glass or the like between both panels, and a door sash that divides the window portion of the door, and the terminal of the door sash is placed inside the door panel. It is configured by inserting and welding the terminal of the door sash and the door panel. For this reason, a level | step difference will be formed in the welding part of a door sash and a door panel, and there exists a possibility that a clearance gap may be formed between a back surface seal part, a door sash, and a door panel. Due to this, there is a concern that water may enter the vehicle interior side from the gap between the back seal part, the door sash, and the door panel when the automobile is subjected to high-pressure washing.

  On the other hand, there exists a technique of providing the protrusion extended so that the said level | step difference may be straddled with respect to the bottom face of an attachment base, for example (for example, refer patent document 1).

JP 2004-58738 A

  When the technique of the above-mentioned Patent Document 1 is adopted, the protrusions provided on the bottom surface of the mounting base portion prevent water that has entered the mounting base side from entering the vehicle interior side through the back seal portion. Can do. However, when a large amount of water enters the mounting base side through the back seal portion, there is a concern that the water cannot be processed well, and there is still a concern about water leakage to the vehicle interior side. .

  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,
Of the mold forming portion, the sub seal portion is not present in the panel corresponding portion arranged below the belt line,
The mold molding part is made of a material harder than the material constituting the mold molding part, and is provided with an insert member that is insert-molded at the time of mold molding.
The insert member includes a main body portion embedded in the mounting base, and a holding wall portion extending in a direction substantially orthogonal to the main body portion and embedded in the back seal portion,
The insert member is disposed so as to straddle the boundary portion between the panel-corresponding portion and the sash-corresponding portion that is disposed above the belt line in the mold forming portion and provided with the sub-seal portion,
A tip portion of a portion of the back seal portion where the holding wall portion is embedded is press-contacted in series with the door sash and an inner side surface of the outer peripheral edge of the door panel in the welded portion. The door weather strip mounting structure.

  According to the means 1, the holding wall portion made of a material harder than the material constituting the mold forming portion is embedded in the welded portion between the door sash and the door panel and the portion pressed in the vicinity of the back seal portion. ing. By burying the holding wall in this manner, the tip portion of the back seal portion can be more strongly pressed against the welded portion and the vicinity thereof. Therefore, even if a step is formed in the welded portion, the tip portion of the back seal portion can be deformed so as to follow the surface shape of the welded portion and the vicinity thereof. For this reason, the clearance gap formed between a welding part and a back surface seal part can be eliminated as much as possible, and the improvement of a sealing performance etc. can be aimed at as a result.

  In particular, since the holding wall portion extends in a direction substantially perpendicular to the main body portion, the holding wall portion is displaced when the front end portion of the back seal portion and the welded portion (door sash, etc.) are brought into contact with each other. (For example, the holding wall portion is displaced to the inside of the vehicle and separated from the welded portion) can be suppressed. Therefore, by embedding the holding wall portion, the effect of pressing the front end portion of the back seal portion in which the holding wall portion is embedded more strongly against the welded portion is more reliably achieved.

  Further, according to the present means 1, the insert member is provided so as to straddle the boundary between the sash-corresponding part provided with the sub-seal part and the panel-corresponding part not provided with the sub-seal part. For this reason, for example, during high-pressure car washing, the back seal part of the sash-corresponding part is deformed by the pressure of water that has entered the back side of the sub-seal part of the sash-corresponding part from the boundary between the sash-corresponding part and the panel-corresponding part. Therefore, it is possible to prevent a situation in which water enters the vehicle interior side from there.

Mean 2. The door sash is provided with a retainer portion having a substantially C-shaped cross section,
The retainer portion includes a locking portion that protrudes in a direction intersecting the inner peripheral direction of the door and that locks both side portions of the mounting base.
In the vicinity of the terminal welded to the door panel in the door sash, the locking portion is configured such that its protruding length is gradually shortened toward the terminal side of the door sash,
The front end portion of the back seal portion where the holding wall portion is embedded is in contact with the inner side surface of the door sash even in the portion where the protruding length of the locking portion is configured to be short. The door weather strip mounting structure according to the means 1 characterized by the above.

  According to the means 2, the terminal of the door sash can be inserted and welded to the inside of the door panel as described above by eliminating the protruding portion such as the locking portion at the terminal of the door sash. On the other hand, since the attachment base portion cannot be fitted into the retainer portion with respect to the portion where the protruding length of the locking portion is configured to be short and the portion where the locking portion does not exist, there is a concern that the sealing performance is deteriorated. . On the other hand, the back seal portion in which the holding wall portion is embedded is extended even in a portion where the protruding length of the locking portion is configured to be short like the present means 2, and the back seal portion and the door sash are extended. By increasing the sealing force between them, it is possible to suppress a decrease in the sealing performance at a portion where the retainer portion is not provided (the retainer portion is not in a suitable shape).

  Means 3. The door weather strip mounting structure according to claim 1 or 2, wherein the insert member extends to the vicinity of the upper end portion of the mold forming portion.

  With respect to the molded part, since it is necessary to extract the core mold that forms the inner surface of the hollow seal part, a slit that communicates with the hollow part of the hollow seal part is formed with respect to the mounting base part. Due to this, it becomes difficult to maintain the shape of the molded part. For example, when the hollow seal part is crushed and deformed by being pressed against the periphery of the door opening, the back seal part is brought into contact with the door due to the stress based on the deformation. There is concern that it may be tilted and deformed away from the sash.

  On the other hand, as described in the means 3, by extending the insert member to the vicinity of the upper end portion of the molded part, the shape of the molded part is easily maintained. In particular, it is possible to prevent the rear seal portion from being deformed so as to be separated from the door sash by embedding the holding wall portion extending from the main body portion with respect to the rear seal portion. Therefore, the above-mentioned effect of improving the sealing performance can be achieved more reliably.

Means 4. The mounting base includes a vehicle outer side locking piece that protrudes to the vehicle outer side from a portion on the inner side of the door with respect to the back seal portion, and a portion having a retainer portion having a substantially C-shaped cross section in the door sash. , The vehicle outer side locking piece is locked to the retainer portion,
The insert member includes a locking piece holding portion extending from the main body portion to the vehicle outer side and embedded in the vehicle outer locking piece,
Means characterized in that at least a front end portion of the outer side locking piece where the locking piece holding portion is embedded is pressed against the welded portion, the door sash and the door panel in the vicinity thereof. The door weather strip mounting structure according to any one of claims 1 to 3.

  According to the means 4, since the locking piece holding portion is embedded in the vehicle outer side locking piece, the vehicle outer side locking piece can be strongly pressed by the door sash and the door panel including the welded portion. For this reason, not only the sealing performance between the door sash and the door panel including the back seal portion and the welded portion described above can be enhanced, but also the sealing performance between the vehicle outer side locking piece and the retainer portion can be enhanced. As a result, it is possible to more reliably prevent water from entering the vehicle compartment from between the door weather strip and the door sash.

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 schematic cross section which shows a welding part and a back surface seal lip.

  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.

  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. Hereinafter, a portion where the door sash 55 and the door panel 51 are welded is referred to as a “welded portion 57” (see FIG. 10).

  Furthermore, as shown in FIG. 6, in the vicinity of the welded portion 57 in the door sash 55, the protruding lengths of the vehicle outer side locking portion 34 and the folded portion 35 gradually increase toward the terminal on the rear side of the door sash 55. It 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.

  As described above, in the present embodiment, the portion corresponding to the oblique side portion of the door 2 in the molded portion 7 is configured to intersect with the rear end of the belt line. The door weather strip 3 is formed at a portion where the door weather strip 3 is disposed obliquely.

  As shown in FIGS. 5 to 8, an insert member 45 made of polyamide resin is embedded (insert molding) in the mold forming portion 7. The insert member 45 has a substantially flat main body 46 embedded in the mounting base 11 (the vehicle outer side wall 11b), and the main body 46 from the door 2 outer peripheral side edge of the main body 46 toward the vehicle outer side. Extending in a substantially orthogonal direction, extending from the holding wall portion 47 embedded in the back seal portion 14 and the door 2 inner peripheral side edge of the main body portion 46 toward the vehicle outer side in a direction substantially orthogonal to the main body portion 46. And an engagement piece holding portion 48 embedded in the vehicle exterior engagement piece 22 and has a substantially U-shaped cross section. The insert member 45 is embedded so as to straddle the sash corresponding part 41 provided with the sub seal part 13 and the panel corresponding part 42 provided with no sub seal part 13. In particular, in the present embodiment, the insert member 45 is continuously extended to a position near the upper end of the molded part 7. And in the attachment state to the door sash 55 (door panel 51) of the door weather strip 3, as shown in FIG. 10, the front-end | tip part of the site | part by which the holding wall part 47 was embed | buried out among the back surface seal parts 14 is welded. The portion 57 is in pressure contact with the door sash 55 and the door panel 51 (vertical wall portion 36) in series. Further, the outer side locking piece 22 in which the locking piece holding portion 48 is embedded also has a tip portion located on the door sash 55 and the door panel 51 in the same range as the back seal portion 14 in which the holding wall portion 47 is embedded. It is in pressure contact.

  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 portion of the back seal portion 14 that is in pressure contact with the welded portion 57 between the door sash 55 and the door panel 51 is more than the material (EPDM) constituting the mold forming portion 7. A holding wall portion 47 made of a hard material (polyamide resin) is embedded. By embedding the holding wall portion 47 in this manner, the distal end portion of the back seal portion 14 can be more strongly pressed against the door sash 55 and the door panel 51 (vertical wall portion 36) including the welded portion 57. Therefore, even if a step is formed in the welded portion 57, the tip portion of the back seal portion 14 can be deformed so as to follow the surface shape of the welded portion 57 and the vicinity thereof. For this reason, the clearance gap formed between the welding part 57 and the back surface seal part 14 can be eliminated as much as possible, and as a result, improvement of a sealing performance etc. can be aimed at.

  In particular, since the holding wall portion 47 extends in a direction substantially orthogonal to the main body portion 46, the holding wall portion is brought into contact with the welded portion 57 (door sash 55 or the like) with the tip portion of the back seal portion 14. It is possible to suppress a situation in which the portion 47 is displaced (for example, the holding wall portion 47 is displaced to the inside of the vehicle and is separated from the door sash 55). Therefore, by embedding the holding wall portion 47, the effect of pressing the front end portion of the back surface seal portion 14 in which the holding wall portion 47 is embedded more strongly against the welded portion 57 is more reliably achieved.

  Furthermore, according to the present embodiment, the insert member 45 is provided so as to straddle the boundary between the sash corresponding portion 41 provided with the sub seal portion 13 and the panel corresponding portion 42 provided with no sub seal portion 13. ing. For this reason, for example, in the case of high-pressure car washing or the like, the back surface of the sash-corresponding portion 41 is caused by the pressure of water that has entered the back side of the sub seal portion 13 of the sash-corresponding portion 41 from the boundary portion between the sash-corresponding portion 41 and the panel-corresponding portion 42. It is possible to prevent a situation in which the seal portion 14 is deformed and water enters the vehicle compartment from there.

  Further, in the present embodiment, for the convenience of inserting and welding the rear end of the door sash 55 inside the door panel 51, the vehicle outer side locking portion 34 and the turn-back portion 35 are provided in the vicinity of the rear end of the door sash 55. The projecting length is gradually shortened toward the terminal side of the door sash 55. However, in this case, a portion where the protruding lengths of the vehicle outer side locking portion 34 and the folded portion 35 (and the vehicle inner side locking portion 33) are configured to be short, and a portion where the vehicle outer side locking portion 34 and the folded portion 35 do not exist. With respect to the above, since the mounting base 11 cannot be fitted into the retainer DR, there is a concern that the sealing performance is deteriorated. In particular, since the rear side of the door sash 55 is a hypotenuse, water may enter the interior of the passenger compartment when the sealing performance is reduced.

  On the other hand, in this embodiment, the insert member 45 extends to the vicinity of the upper end portion of the mold forming portion 7. As a result, the back seal portion 14 in which the holding wall portion 47 is embedded is extended so that the rear seal portion 14 and the door sash are extended even in a portion where the protruding lengths of the vehicle outer side locking portion 34 and the turn-back portion 35 are short. The sealing force between 55 and the like can be increased. Accordingly, it is possible to suppress a decrease in sealing performance at a portion where the retainer portion DR is not provided (the retainer portion DR is not in a suitable shape).

  Furthermore, since it is necessary to remove the core mold that forms the inner surface of the hollow seal portion 12 with respect to the mold forming portion 7, a slit 43 that communicates with the hollow portion 12 a of the hollow seal portion 12 is formed in the mounting base portion 11. The Due to this, it becomes difficult to maintain the shape of the molded part 7. For example, when the hollow seal part 12 is pressed against the periphery of the door opening 4 and deformed by being crushed and deformed, the back seal is caused by the stress based on the deformation. There is a concern that the portion 14 may be tilted and deformed away from the door sash 55 or the like.

  On the other hand, in this embodiment, the shape of the molding part 7 is easily maintained by extending the insert member 45 to the vicinity of the upper end part of the molding part 7. In particular, it is possible to suppress a situation in which the rear seal portion 14 is deformed so as to be separated from the door sash 55 or the like by embedding the holding wall portion 47 extending from the main body portion 46 with respect to the rear seal portion 14. it can. Therefore, the above-mentioned effect of improving the sealing performance can be achieved more reliably.

  Further, the insert member 45 includes a locking piece holding portion 48 extending from the main body portion 46 to the outside of the vehicle and embedded in the outside locking piece 22. The locking piece holding portion 48 is embedded. The front end portion of the outer side locking piece 22 is pressed against the door sash 55 or the like (the vertical wall portion 36). In this way, the locking piece holding portion 48 is embedded in the vehicle outer side locking piece 22 and the vehicle outer side locking piece 22 is pressed against the door sash 55 or the like, so that the vehicle outer side locking piece 22 is stronger than the door sash 55 or the like. Can be pressed. For this reason, not only the sealing performance between the back surface sealing part 14 and the door sash 55 etc. can be improved, but the sealing performance between the vehicle outer side locking piece 22 and the door sash 55 etc. can be improved. As a result, it is possible to more reliably prevent water from entering the vehicle interior from between the door weather strip 3 and the door sash 55 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 insert member 45 has a substantially U-shaped cross section, but at least the main body 46 and the holding wall that extends substantially orthogonally from the main body 46 and is embedded in the back seal 14. For example, it may be configured to have a substantially U-shaped cross section and a substantially T-shaped cross section. In addition, for example, a portion extending so as to straddle the boundary between the sash-corresponding portion 41 and the panel-corresponding portion 42 is configured to have a substantially U-shaped cross section, and the protrusion length of the vehicle outer side locking portion 34 and the folded portion 35 thereon The portion where the vehicle becomes smaller (including the portion where the vehicle outer side locking portion 34 and the turn-back portion 35 are not formed) is formed in a substantially L-shaped cross section, and the upper side is formed in a substantially plate shape including only the main body portion 46. It is good as well. In the case of adopting this configuration, it is possible to improve workability when the door weather strip 3 is attached to the door sash 55 in a substantially L-shaped section and a plate-like portion.

  (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 specifically mentioned in the above embodiment, the insert member 45 embedded in the molded part 7 extends to a part corresponding to the rear edge of the door 2 in the molded part 7. It is good. 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.

  Moreover, although the insert member 45 of the said embodiment is comprised with the polyamide resin, as long as it is a material higher in rigidity or harder than the elastic material (rubber material) of the door weather strip 3, it will be specifically limited to a polyamide resin. For example, you may comprise by thermoplastic resin materials, such as a polyester resin. However, it is desirable that the material does not cause melting or the like during vulcanization of the molded part.

  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 ... Car outer side locking piece, 32 ... Bottom wall part, 33 ... Car inner side locking part, 34 ... Car outer side locking part, 35 ... Support part, 36 ... Vertical wall 41: Sash-corresponding part, 42 ... Panel-corresponding part, 45 ... Insert member, 46 ... Main body part, 47 ... Holding wall part, 48 ... Locking piece holding part, 51 ... Door panel, 55 ... Door sash, 57 ... Welding Part, DR ... retainer part, G ... door glass, M ... automobile, W ... window part.

Claims (4)

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,
Of the mold forming portion, the sub seal portion is not present in the panel corresponding portion arranged below the belt line,
The mold molding part is made of a material harder than the material constituting the mold molding part, and is provided with an insert member that is insert-molded at the time of mold molding.
The insert member includes a main body portion embedded in the mounting base, and a holding wall portion extending in a direction substantially orthogonal to the main body portion and embedded in the back seal portion,
The insert member is disposed so as to straddle the boundary portion between the panel-corresponding portion and the sash-corresponding portion that is disposed above the belt line in the mold forming portion and provided with the sub-seal portion,
A tip portion of a portion of the back seal portion where the holding wall portion is embedded is press-contacted in series with the door sash and an inner side surface of the outer peripheral edge of the door panel in the welded portion. The door weather strip mounting structure. The door sash is provided with a retainer portion having a substantially C-shaped cross section,
The retainer portion includes a locking portion that protrudes in a direction intersecting the inner peripheral direction of the door and that locks both side portions of the mounting base.
In the vicinity of the terminal welded to the door panel in the door sash, the locking portion is configured such that its protruding length is gradually shortened toward the terminal side of the door sash,
The front end portion of the back seal portion where the holding wall portion is embedded is in contact with the inner side surface of the door sash even in the portion where the protruding length of the locking portion is configured to be short. The door weather strip mounting structure according to claim 1.   3. The door weather strip mounting structure according to claim 1, wherein the insert member is extended to the vicinity of an upper end portion of the mold forming portion. The mounting base includes a vehicle outer side locking piece that protrudes to the vehicle outer side from a portion on the inner side of the door with respect to the back seal portion, and a portion having a retainer portion having a substantially C-shaped cross section in the door sash. , The vehicle outer side locking piece is locked to the retainer portion,
The insert member includes a locking piece holding portion extending from the main body portion to the vehicle outer side and embedded in the vehicle outer locking piece,
The front end portion of at least the portion where the locking piece holding portion is embedded in the outer side locking piece is in pressure contact with the welded portion, the door sash and the door panel in the vicinity thereof. Item 4. The door weather strip mounting structure according to any one of Items 1 to 3.

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