CN210591350U - Vehicle door sealing strip - Google Patents

Abstract

A door weather strip is provided to effectively prevent water from entering from a joint step difference portion between a roll-in type window frame and a press-out type window frame. A die molding part connecting an end of an upper extrusion molding part extending along a top side and an end of a lower extrusion molding part descending is mounted at a joint step difference part generated by joining a roll sash and a press sash, and the door weather strip includes: a back lip portion extending from the mounting base portion of the upper extrusion molding portion toward the die molding portion side and continuously provided so as to straddle the joining step portion while elastically contacting the upper end edge portion of the roll-pressed sash; and a first rib portion provided continuously to the mounting base portion of the upper extrusion molded portion, extending from the vehicle exterior side surface of the vehicle exterior side protrusion of the mounting base portion of the die molded portion toward the joining step difference portion side, and elastically contacting the vehicle interior side surface of the rising surface of the press-formed sash across the joining step difference portion while elastically contacting the vehicle exterior side concave portion rising surface of the guide rail portion.

Description

Vehicle door sealing strip

Technical Field

The utility model relates to a door sealing strip that car was used. More particularly, the present invention relates to a Door weather strip for preventing water from entering from a joint step portion generated by joining a Door top frame (Door Roof Sash) provided on a Roof side of an automobile to a press Sash (Pressssash) via a Roll Sash (Roll Sash).

Background

As shown in fig. 8 and 9, the following types of structures are known: a door top frame 10 provided on the top side of the vehicle rear door 2, and a press-formed window frame 12 joined to a roll-pressed window frame 11 at a corner X of the rear upper edge by welding. The door top frame 10 is covered with a trim (decotive Molding)20 from the vehicle exterior side, and an end cap 25 is fitted to a rear end portion of the trim 20.

A door weather strip 30 that elastically contacts a door opening edge of the vehicle body 3 when the door 2 is closed is attached to the top-side outer peripheral edge of the door 2.

As shown in fig. 11, the door weather strip 30 is connected by die molding to an upper extruded portion 31 extending linearly along the top side and a lower extruded portion 32 descending along the pillar side on the rear door 2 side, and a die molded portion 33 is attached to the inside of the corner portion X of the rear door 2.

The sectional shape of the door weather strip 30 is as shown in fig. 12 at the upper extrusion molding section 31, and as shown in fig. 13 at the die molding section 33, the door weather strip 30 has: mounting bases 31A, 33A mounted on the door top frame 10; hollow seal portions 31B, 33B and seal lips 31C, 33C integrally formed with the mounting base portions 31A, 33A and respectively in elastic contact with the vehicle interior side and the vehicle exterior side of the door opening edge of the vehicle body 3; further, rear lips 31D and 33D are provided so as to protrude outward from between the mounting bases 31A and 33A and the seal lips 31C and 33C. In the lower extrusion molded part 32, the door weather strip 30 has an attachment base portion, a hollow seal portion, and a back face lip portion, as in the upper extrusion molded part 31, but does not have a seal lip portion.

Here, as shown in fig. 10, a joining step Z is generated in the vehicle interior-exterior direction at the joining portion of the roll sash 11 and the press sash 12. That is, since the width of the rising surface 12a of the press-formed sash 12 shown in fig. 13 in the vehicle interior-exterior direction is smaller than the width of the upper end edge 11a of the roll-pressed sash 11 shown in fig. 12 in the vehicle interior-exterior direction, a step difference is generated between the both, and there is a problem that the water W enters from the joining step difference portion Z toward the vehicle interior side.

To solve such a problem, conventionally, as shown in fig. 12 and 13, the back lip 33D of the die molding portion 33 provided continuously to the back lip 31D of the door weather strip 30 extending from the upper extrusion molding portion 31 is brought into elastic contact with the joining step difference portion Z. The sealing line at this time by the elastic contact of the back lips 31D, 33D is shown by a broken line L1 in fig. 9.

However, when the amount of water W is large, as shown in fig. 13, there are cases where: the water W enters the mounting base portion 33A side from between the rear face lip portion 33D and the rising face 12a of the press sash 12, and further enters the vehicle interior side from between the mounting base portion 33A and the mounting face 12b of the press sash 12.

In contrast, the following structure is disclosed: in the belt line, a cover portion is provided to absorb a step difference generated between the door frame and the door panel by the connecting portion, and a drain groove is provided (see, for example, patent document 1).

However, the invention described in patent document 1 relates only to the step difference of the belt line, and does not prevent water W from entering from the joining step difference portion Z generated at the joining portion of the roll sash 11 and the press sash 12 on the upper side of the vehicle door as shown in fig. 8 and 10.

Documents of the prior art

Patent document

Patent document 1: JP patent No. 5057237.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door sealing strip can effectively prevent that water from the poor part of joint step of roll-in formula window frame and punching press formula window frame from getting into.

In order to achieve the above object, the door weather strip of the present invention is configured such that a door top frame (10) provided on the top side of an automobile door (2) is formed by joining a roll-pressed sash (11) to a press-formed sash (12) having a rising face (12a),

the roll-press type window frame (11) is formed by roll forming, and is provided with a guide rail part (11b) and an upper end edge part (11a), the guide rail part (11b) comprises a bottom surface part (11b3), a vehicle outer side protruding part (11b1) which is formed at two ends of the bottom surface part and protrudes towards the vehicle inner side, and a vehicle inner side protruding part (11b2) which protrudes towards the vehicle outer side, the cross section of the guide rail part (11b) is approximately C-shaped and is opened towards the upper side, the upper end edge part (11a) is formed by the end part of the vehicle outer side protruding part (11b1) being folded towards the vehicle outer side and extending upwards, and further being folded towards the vehicle outer side and extending downwards,

a die molding part (53) is mounted on a joint step difference part (Z) generated by the joint of the rising surface (12a) and the upper end edge part (11a), the die molding part (53) connects the end part of the upper extrusion molding part (51) linearly extending along the top side and the end part of the lower extrusion molding part (52) descending, and,

the upper extrusion molding part (51) and a part of the die molding part (53) of the door weather strip each have: mounting bases (51A, 53A) fitted to the roll-in sash (11) and having vehicle-exterior and vehicle-interior protrusions (51A1, 53A1, 51A2, 53A2) formed at the vehicle-exterior and vehicle-interior ends; hollow seal portions (51B, 52B, 53B) that elastically contact the door opening edge of the vehicle body (3) when the door (2) is closed;

it is characterized by comprising:

back lip portions (51D, 53D) extending from a position spaced upward from a vehicle exterior side protruding portion (51A1) formed on an attachment base portion (51A) of the upper extrusion molding portion (51) toward the mold molding portion (53), and continuously provided so as to straddle the joining step difference portion while elastically contacting a vehicle interior side surface of an upper end edge portion (11A) located above a vehicle exterior side protruding portion (11b1) of a rail portion (11b) of the roll sash (11);

and a first Bead portion (Bead Part) provided continuously to a vehicle exterior protrusion (51A1) formed on the mounting base (51A) of the upper extrusion molded Part (51), extending from the vehicle exterior side surface of the vehicle exterior protrusion (53A1) of the mounting base (53A) of the die molded Part (53) toward the joining step difference portion (Z), and provided continuously so as to elastically contact the vehicle exterior side concave portion rising surface (11b4) of the rail portion (11b) of the roll sash (11) and to elastically contact the vehicle interior side surface of the rising surface (12a) of the press sash (12) across the joining step difference portion (Z).

The present invention is characterized by comprising a second Bead (Bead Part) (80), the second Bead (80) being provided continuously to a vehicle exterior protrusion (51A1) formed on the mounting base (51A) of the upper extrusion-molded Part (51), extending from the lower surface of the vehicle exterior protrusion (53A1) of the mounting base (53A) of the die-molded Part (53) toward the joining step (Z), continuously provided so as to elastically contact the upper surface of the mounting surface (12b) of the press type sash (12) across the joint step difference portion (Z) while elastically contacting the bottom surface portion (11b3) of the guide rail portion (11b) of the roll type sash (11), the mounting surface (12b) is provided toward the vehicle interior side from below the rising surface (12a) of the press-formed sash (12), an attachment base (53A) of the mold molding section (53) is attached to the attachment surface (12 b).

In addition, the back lip (53D) is branched into a back horizontal extension portion (53D1) and a back descending extension portion (53D2) at the upper portion of the die forming portion (53), the back horizontal extension portion (53D1) linearly extends from the upper extrusion forming portion (51) while remaining unchanged, and the back descending extension portion (53D2) descends and extends above the first bead portion (70).

In addition, the present invention is characterized in that the first bead part (70) is provided so as to gradually deviate to the outside of the vehicle as it descends in the mold forming part (53).

In addition, the utility model is characterized in that the vehicle inner side of the continuous arrangement position of the second rib part (80) is provided with a high foaming sponge material (90).

In addition, the present invention is characterized in that the high foaming sponge material (90) is provided so as to gradually deviate to the outside of the vehicle as descending from the die molding part (53) toward the lower extrusion molding part (52).

In addition, the reference numerals in parentheses denote corresponding elements or corresponding matters described in the drawings and the detailed description to be described later.

According to the door weather strip of the present invention, since the back lip portion is brought into elastic contact with the inside surface of the upper edge portion located above the outside protrusion of the guide rail portion of the roll sash so as to straddle the step difference portion between the roll sash and the press sash, and the first rib portion is brought into elastic contact with the outside recess of the guide rail portion in a standing manner, water can be inhibited from entering from the outside to the inside through the step difference portion by the double seal portion. In this case, the water from the joining step portion is caused to fall down in a rush manner along the rear lip portion and the vehicle outer side of the first bead portion, whereby the water can be suppressed from entering the vehicle inner side.

In this way, by providing the back lip portion and the first bead portion, the water stopping performance and the water draining performance are excellent, and the door weather strip capable of effectively suppressing the entry of water is obtained.

Further, since the back lip portion extends continuously without a gap from a predetermined position, which is a position spaced upward from the vehicle exterior protrusion formed at the attachment base portion of the upper extrusion molded portion, toward the die molding portion side, and the first bead portion also extends continuously without a gap from the vehicle exterior surface of the vehicle exterior protrusion of the attachment base portion of the die molding portion provided continuously with the attachment base portion of the upper extrusion molded portion so as to straddle the joining step difference portion, there is no case where water enters the vehicle interior side from the gap.

Further, according to the present invention, since the second rib portion is provided continuously to the vehicle exterior protrusion formed at the mounting base portion of the upper extrusion molded portion, extends from the lower surface of the vehicle exterior protrusion of the mounting base portion of the die molded portion toward the joining step difference portion side, and elastically contacts the bottom surface portion of the guide rail portion of the roll press type sash while crossing the joining step difference portion, and elastically contacts the upper surface of the mounting surface of the press type sash provided toward the vehicle interior side from below the rising surface of the press type sash, even if water is about to enter toward the vehicle interior side beyond the first rib portion, the water is blocked by the second rib portion, and therefore, the water stopping performance and the water drainage performance are more excellent.

Further, according to the present invention, the back lip portion is branched into the back horizontal extension portion extending linearly from the upper extrusion molded portion and the back descending extension portion descending and extending above the first rib portion at the upper portion of the die molded portion, so that the amount of water in the back lip portion can be dispersed into two paths.

Further, according to the present invention, since the first bead portion is provided so as to be gradually deviated to the vehicle outer side along with the descent in the mold molding portion, the water entering the first bead portion can be guided to be further deviated to the vehicle outer side.

In addition, according to the present invention, since the highly foamed sponge material is provided on the vehicle interior side of the continuous position of the second rib portion, even if water enters the vehicle interior side beyond the second rib portion, the water can be blocked by the highly foamed sponge material, and therefore, the water stopping performance and the water discharging performance are more excellent.

In addition, according to the utility model discloses, owing to set up high foaming sponge material to descend to the lower extrusion moulding portion side along with from the mould shaping portion and incline to the car outside gradually, consequently can guide the water that gets into high foaming sponge material to being inclined to the car outside more.

Drawings

Fig. 1 is an enlarged perspective view showing a state in which a door weather strip according to an embodiment of the present invention is attached to an X portion of a door shown in fig. 8.

Fig. 2 is an enlarged perspective view showing a main part of a door weather strip according to an embodiment of the present invention.

Fig. 3 is an enlarged sectional view a-a of fig. 2 showing a state in which the door weather strip according to the embodiment of the present invention is mounted on the roll sash.

Fig. 4 is an enlarged sectional view B-B of fig. 2 showing a state in which the door weather strip according to the embodiment of the present invention is attached to the roll sash.

Fig. 5 is an enlarged cross-sectional view of C-C of fig. 2 showing a state in which the door weather strip of the embodiment of the present invention is mounted on the stamped-out window frame.

Fig. 6 is an enlarged cross-sectional view of D-D of fig. 2 showing a state in which the door weather strip of the embodiment of the present invention is mounted on the stamped-out window frame.

Fig. 7 is an enlarged sectional view H-H of fig. 1 showing a state where the first bead portion of the door weather strip according to the embodiment of the present invention is elastically in contact with the joining step difference portion between the roll sash and the press sash.

Fig. 8 is an external side view of the automobile.

Fig. 9 is an enlarged perspective view (corresponding to fig. 1) showing a state in which a door weather strip of a conventional example is attached to an X portion of the door shown in fig. 8.

Fig. 10 is an enlarged sectional view G-G of fig. 9 showing a coupling step difference portion of the roll type sash and the press type sash.

Fig. 11 is an enlarged side view showing the door weather strip illustrated in fig. 8.

Fig. 12 is an enlarged cross-sectional view (corresponding to fig. 3) showing a state in which the upper extrusion-molded portion of the door weather strip shown in fig. 11 is attached to the roll sash.

Fig. 13 is an enlarged cross-sectional view (corresponding to fig. 5) showing a state in which the die-formed portion of the conventional example of the door weather strip shown in fig. 11 is attached to the press sash at the joining step portion.

Fig. 14 is a K-K enlarged cross-sectional view of fig. 2 showing a state in which the door weather strip according to the embodiment of the present invention is attached to the stamped-out window frame.

Description of reference numerals

1 front door

2 rear door

3 vehicle body

10 door top frame

11 roll-in type window frame

11a upper end edge part

11b guide rail part

11b1 vehicle exterior side projection

11b2 vehicle interior side projection

11b3 bottom surface

11b4 vehicle outer side concave part standing surface

12 punching press formula window frame

12a rising surface

12b mounting surface

20 decorative strip

25 end cap

30 vehicle door sealing strip

31 upper extrusion molding part

31A mounting base

31B hollow seal part

31C sealing lip

31D Back lip

32 lower extrusion molding part

33 die forming part

33A mounting base

33B hollow seal part

33C sealing lip

33D Back lip

40 snap-in hole

50 vehicle door sealing strip

51 upper extrusion molding part

51A mounting base

51A1 outboard side projection

51A2 protrusion on vehicle inner side

51B hollow seal part

51C sealing lip

51D Back lip

52 lower extrusion molding part

52A mounting base

52A1 outboard protrusion

52A2 protrusion on vehicle inner side

52B hollow seal part

52D Back lip

53 mould forming part

53A mounting base

53A1 outboard protrusion

53A2 protrusion on vehicle inner side

53B hollow seal part

53C sealing lip

53D Back lip

53D1 Back horizontal extension

53D2 Back face Down extension

53E die formed lower lip

70 first rib part

80 second rib part

90 high foaming sponge material

W water

X corner

Z joint step difference portion

Detailed Description

A door weather strip 50 according to an embodiment of the present invention will be described with reference to the drawings. The same reference numerals are given to the same portions as those shown in the conventional example.

The door weather strip 50 according to the embodiment of the present invention is, as shown in fig. 1 and 8, installed on the door top frame 10, the door top frame 10 is installed on the top side of the rear door 2 located on the left side with respect to the front of the automobile, and the door weather strip 50 is particularly suitable for a structure in which the door top frame 10 is of a type in which the roll-pressed window frame 11 and the pressed window frame 12 are joined by welding. The door top frame 10 is covered with a trim 20 for the exterior of the vehicle, and an end cap 25 is fitted to a rear end portion of the trim 20.

As shown in fig. 11, the door weather strip 50 is formed by connecting an end of an upper extrusion molded part 51 and an end of a lower extrusion molded part 52 at a corner portion by die molding, wherein the upper extrusion molded part 51 is attached along a door top frame 10 facing a roof of an automobile and linearly extends, the lower extrusion molded part 52 is attached along a door sash facing a rear pillar and descends, and the die molded part 53 is attached to a corner portion X of a rear upper edge of the door top frame 10 of the vehicle rear door 2.

The main part of the door weather strip 50 is shown in fig. 2, and each section of the door weather strip 50 mounted on the door top frame 10 is shown in fig. 3 to 6. Fig. 2 mainly shows the vehicle exterior side surface of the door weather strip 50 which is attached to one side of the door top frame 10. In fig. 2, the black sides of the two black and white triangular marks are the die molding portion 53, and the white sides are the extrusion molding portions (the upper extrusion molding portion 51 and the lower extrusion molding portion 52).

The material applicable to the door weather strip 50 is not particularly limited as long as it is a rubber-like elastomer, but EPDM sponge rubber is preferable in the case of rubber, and foamed or soft TPO is preferable in the case of thermoplastic resin.

As shown in fig. 3, the roll sash 11 is formed by roll forming with an upper end edge portion 11a and a rail portion 11 b. The rail portion 11b is C-shaped in cross section and is open upward, and includes a bottom surface portion 11b3, a vehicle exterior side protruding portion 11b1 formed at both ends of the bottom surface portion 11b3 and protruding toward the vehicle exterior side, and a vehicle interior side protruding portion 11b 2. The upper edge portion 11a is an end portion of the vehicle exterior side protruding portion 11b1 that is folded back toward the vehicle exterior side and extends upward, and further folded back toward the vehicle exterior side and extends downward.

As shown in fig. 5, the press-formed window frame 12 is formed by press-forming a rising surface 12a, and the rising surface 12a extends upward from the vehicle exterior side end of a mounting surface 12b extending in the vehicle interior-exterior direction. The rising surface 12a is flat and does not have a projecting portion such as the vehicle exterior projecting portion 11b1 of the roll sash 11.

A joining step portion Z as shown in fig. 7 is formed at the joining portion between the roll sash 11 and the press sash 12 (the same structure as that of the conventional example and that shown in fig. 10).

When the door weather strip 50 is attached to the door top frame 10, fig. 4 shows a cross section of the joining step portion Z on the roll sash 11 side, and fig. 5 shows a cross section of the same joining step portion Z on the press sash 12 side.

The upper extrusion molded part 51, the lower extrusion molded part 52, and the die molded part 53 of the door weather strip 50 have mounting base parts 51A, 52A, and 53A, respectively, and hollow seal parts 51B, 52B, and 53B integrally molded with the mounting base parts. The mounting bases 51A, 52A, 53A have a plate-like cross section, and the vehicle exterior side end and the vehicle interior side end are formed with vehicle exterior side projections 51A1, 52A1, 53A1 and vehicle interior side projections 51A2, 52A2, 53A 2. As shown in fig. 4 to 6, the mounting base portion 53A of the mold forming portion 53 is provided with a hole for extracting a core used in mold forming. The hollow seal portions 51B, 52B, 53B are elastically in contact with the door opening edge of the vehicle body 3 when the rear door 2 is closed, and are integrally molded with the mounting base portions 51A, 52A, 53A.

In the upper extrusion molded part 51, as shown in fig. 2 and 3, a seal lip 51C is integrally formed on the mounting base part 51A, the seal lip 51C being located on the vehicle exterior side of the hollow seal part 51B and being in elastic contact with the door opening edge of the vehicle body 3 together with the hollow seal part 51B, and in the die molded part 53, similarly, as shown in fig. 4 to 6, a seal lip 53C is integrally formed on the mounting base part 53A, the seal lip 53C being located on the vehicle exterior side of the hollow seal part 53B and being in elastic contact with the door opening edge of the vehicle body 3 together with the hollow seal part 53B, but as shown in fig. 2, no seal lip is provided in the lower extrusion molded part 52.

In the upper extrusion molded part 51 and the die molded part 53, the vehicle exterior side projections 51A1 and 53A1 and the vehicle interior side projections 51A2 and 53A2 of the attachment bases 51A and 53A are fitted into the rail part 11b at the positions where the roll type sash 11 is present (fig. 3 and 4).

A back lip 51D is provided at a position spaced upward from the vehicle exterior protrusion 51A1 formed on the attachment base 51A of the upper extrusion molded part 51, that is, between the attachment base 51A and the root of the seal lip 51C, and the back lip 51D extends toward the vehicle exterior side and elastically contacts the vehicle interior side surface of the upper end edge 11A of the roll sash 11 located above the vehicle exterior protrusion 11b1 of the rail 11 b.

The back lip 51D provided in the upper extrusion molded part 51 is provided continuously and extends toward the die molded part 53 as shown in fig. 4, and here, similarly, the back lip 53D elastically contacts the vehicle inside surface of the upper end edge part 11a of the roll sash 11 located above the vehicle outside protrusion part 11b1 of the rail part 11b, and further elastically contacts the vehicle inside surface of the rising surface 12a of the press sash 12 across the joining step difference part Z as shown in fig. 5.

In addition, the first bead 70 is continuously provided, and the first bead 70 is provided continuously to the vehicle exterior protrusion 51A1 formed on the attachment base 51A of the upper extrusion molded part 51, extends from the vehicle exterior surface of the vehicle exterior protrusion 53A1 of the attachment base 53A of the die molded part 53 toward the joining step difference portion Z side, and elastically contacts the vehicle exterior concave portion rising surface 11b4 of the rail portion 11b of the roll pressed sash 11 while crossing the joining step difference portion Z as shown in fig. 4, and elastically contacts the lower side of the vehicle interior surface of the rising surface 12a of the pressed sash 12 as shown in fig. 5.

The first bead 70 is formed in the die-molded portion 53 so that the projecting amount of the vehicle exterior side surface of the vehicle exterior side projection 53A1 of the attachment base portion 53A gradually increases from the upper extrusion-molded portion 51 side to the lower extrusion-molded portion 53 side via the joining step portion Z, and elastically contacts the vehicle interior side surface of the upper end edge portion 11a of the roll sash 11 and the vehicle interior side surface of the rising surface 12a of the press sash 12 at the joining step portion Z as shown in fig. 7. That is, the protruding amount of the first bead 70 toward the vehicle exterior side is larger on the pressed sash 12 side than on the rolled sash 11 side at the joining step Z.

Further, the second bead 80 is continuously provided to the vehicle exterior side protrusion 51A1 formed on the mounting base 51A of the upper extrusion molded part 51, extends from the lower surface of the vehicle exterior side protrusion 53A1 of the mounting base 53A of the die molded part 53 toward the joining step difference portion Z side, and is elastically contacted with the bottom surface portion 11b3 of the rail portion 11b of the roll sash 11 as shown in fig. 4, and straddles over the joining step difference portion Z, and is elastically contacted with the upper surface of the mounting surface 12b of the press sash 12 as shown in fig. 5, the mounting surface 12b of the press sash 12 is provided toward the vehicle interior side from below the rising surface 12a of the press sash 12, and the mounting base 53A of the die molded part 53 is mounted on the mounting surface 12 b.

The second bead 80 is also formed in the die molded part 53 in such a manner that the projecting amount of a part of the lower surface of the vehicle exterior side projecting portion 53A1 of the attachment base portion 53A gradually increases from the upper extrusion molded part 51 side to the lower extrusion molded part 53 side through the joining step difference portion Z, and the shape thereof is changed.

As shown in fig. 2, the rear lip 53D is branched into a rear horizontal extension portion 53D1 and a rear descending extension portion 53D2 above the die molding portion 53, the rear horizontal extension portion 53D1 linearly extends from the upper extrusion molding portion 51 while remaining unchanged, and the rear descending extension portion 53D2 descends and extends above the first bead portion 70.

As shown in fig. 2, the first bead 70 is provided so as to gradually move toward the vehicle exterior side as it descends in the mold molding portion 53, and disappears at a further lowered position after passing through the vehicle exterior side of the catch hole 40 provided in the mold molding portion 53. Further, a die-molded lower lip portion 53E is formed, the die-molded lower lip portion 53E is extended so as to be straight downward from a position P before being deviated to the vehicle exterior side, and a lower portion of the die-molded lower lip portion 53E is gradually deviated to the vehicle exterior side and is provided continuously with a rear surface lip portion 52D formed in the lower extrusion portion 52. Although not shown, the die-formed lower lip portion 53E is elastically brought into contact with the vehicle-interior side surface of the rising surface 12a of the press-formed window frame 12 when the door weather strip 50 is attached.

Further, as shown in fig. 3 to 6, a highly foamed sponge material 90 having a specific gravity of 0.05 to 0.4 is provided on the vehicle interior side of the position where the second bead portion 80 is continuously provided.

As shown in fig. 2 to 5, the high foaming sponge material 90 is provided to extend from the lower portion of the mounting base portion 51A of the upper extrusion molded portion 51 to the lower portion of the mounting base portion 53A of the die molded portion 53, and is in elastic contact with the upper surface of the bottom surface portion 11b3 of the guide rail portion 11b of the roll sash 11 and the upper surface of the mounting surface 12b of the press sash 12.

As shown in fig. 2, the high-foaming sponge member 90 is provided so as to gradually move toward the vehicle outer side as it goes down from the die molding portion 53 toward the lower extrusion molding portion 52.

According to the door weather strip 50 configured as described above, since the rear face lip portion 53D is brought into elastic contact with the vehicle interior side face of the upper end edge portion 11a of the roll sash 11 located above the vehicle exterior side protruding portion 11b1 of the rail portion 11b so as to straddle the joining step difference portion Z between the roll sash 11 and the press sash 12, and the first bead portion 70 is brought into elastic contact with the vehicle exterior side recessed portion rising face 11b4 of the rail portion 11b, entry of water W from the vehicle exterior side to the vehicle interior side through the joining step difference portion Z can be prevented by the double seal portions (the rear face lip portion 53D, the first bead portion 70).

At this time, a sealing line by elastic contact of the back lip 53D is shown by a broken line L2 in fig. 1, and a sealing line by the first bead 70 is shown by a broken line L3 in fig. 1.

At this time, the water W from the joining step Z is caused to fall along the rear lip 53D and the vehicle exterior side of the first bead 70, whereby the water W can be prevented from entering the vehicle interior side.

Further, since the rear lips 51D and 53D extend continuously without a gap from predetermined positions toward the die molded part 53 side, the predetermined positions being positions spaced upward from the vehicle exterior protrusion 51A1 formed on the attachment base 51A of the upper extrusion molded part 51, and the first bead 70 also extends continuously without a gap from the vehicle exterior surface of the vehicle exterior protrusion 53A1 of the attachment base 53A of the die molded part 53 provided continuously with the attachment base 51A of the upper extrusion molded part 51 so as to straddle the joining step difference portion Z, the water W does not enter the vehicle interior side from the gap.

Further, since the second bead 80 is provided continuously to the vehicle exterior side protrusion 51A1 formed on the attachment base 51A of the upper extrusion molded part 51, and extends from the lower surface of the vehicle exterior side protrusion 53A1 of the attachment base 53A of the die molded part 53 toward the joining step portion Z, while elastically contacting the bottom surface portion 11b3 of the guide rail portion 11b of the roll sash 11, and while spanning the joining step portion Z, elastically contacting the upper surface of the attachment surface 12b of the press sash 12, even if water enters the vehicle interior side beyond the first bead 70, the water W is blocked by the second bead 80, and therefore, the water stopping performance and the water drainage performance are further excellent.

The sealing line sealed by the second bead 80 at this time is shown by a broken line L4 in fig. 1.

Further, as shown in fig. 2, the rear lip 53D is branched into a rear horizontal extension portion 53D1 and a rear descending extension portion 53D2 at the upper portion of the die molded portion 53, wherein the rear horizontal extension portion 53D1 linearly extends from the upper extrusion molded portion 51 while being maintained, and the rear descending extension portion 53D2 descends and extends above the first bead portion 70, so that the amount of water applied to the rear lip 53D can be dispersed in two ways. The rear face lip portion 53D may be provided not particularly branched but continuously to the rear face lip portion 52D formed in the lower extrusion portion 52 in contact with the mold-molding lower lip portion 53E.

Further, since the first bead 70 is provided so as to be gradually biased toward the vehicle exterior side as it descends in the mold molding portion 53, the water entering the first bead 70 can be guided to be more biased toward the vehicle exterior side. In particular, the water W can be effectively prevented from entering the vehicle interior side from the locking hole 40 by being biased toward the vehicle exterior side of the locking hole 40.

At this time, as shown in fig. 2, the first rib 70 is close to the rear surface downward extending portion 53D2, but if the two portions are connected while maintaining their heights, the water W guided by the first rib 70 cannot be discharged. Therefore, the descending portion Q of the rear surface descending extension portion 53D2 preferably disappears in front of the first bead portion 70 so as not to excessively approach. However, as shown in fig. 14, which is an enlarged section K-K of fig. 2, when the two are close to each other, it is preferable to set the connecting portion S of the two to a height at which the connecting portion S does not elastically contact the rising surface 12a of the press-formed window frame 12, from the viewpoint of facilitating die separation at the time of die forming, so that the drainage performance can be maintained.

Further, since the highly foamed sponge 90 is provided on the vehicle interior side of the position where the second bead 80 is continuously provided, even if water enters the vehicle interior side beyond the second bead 80, the water W can be blocked by the highly foamed sponge 90, and therefore, the water stopping performance and the water discharging performance are further excellent.

Further, since the high foaming sponge 90 is provided so as to be gradually shifted toward the vehicle outer side as it goes down from the die molding portion 53 toward the lower extrusion molding portion 52 side, the water W entering the high foaming sponge 90 can be guided further toward the vehicle outer side.

In the present embodiment, the first rib 70, the second rib 80, and the high foaming sponge 90 are provided, whereby the effect of preventing the water W from entering from the joining step Z is great, but even if the second rib 80 is omitted or the high foaming sponge 90 is omitted, high water-stopping and water-discharging performance can be obtained.

In the present embodiment, the rear door 2 is described as an example, but the door top frame provided on the top side of the front door 1 is of a type in which a press sash is joined to a roll sash by welding at a corner portion of the front upper edge, and is applicable to a configuration of a die-formed portion for attaching a door weather strip to this type of door top frame.

Claims (10)

1. A door weather strip is provided in which a door top frame provided on the top side of an automobile door is formed by joining a roll-pressed sash to a press-formed sash having a rising face,

the roll-press type window frame is formed by roll-forming and has a rail part and an upper end edge part, the rail part comprises a bottom surface part, a vehicle outer side protruding part formed at two ends of the bottom surface part and protruding towards the vehicle inner side, and a vehicle inner side protruding part protruding towards the vehicle outer side, the cross section of the rail part is approximately C-shaped and is opened towards the upper part, the upper end edge part is formed by folding the end part of the vehicle outer side protruding part towards the vehicle outer side and extending upwards, and further folding towards the vehicle outer side and extending downwards,

a die molding portion that connects an end portion of an upper extrusion molding portion linearly extending along the top side and an end portion of a lower extrusion molding portion descending is attached to a joining step portion generated by joining the rising surface and the upper end edge portion,

the upper extrusion molding portion and a part of the die molding portion of the door weather strip each have: an installation base portion which is embedded in the roll sash and has an outboard protrusion and an inboard protrusion formed at an outboard end and an inboard end; a hollow seal portion elastically contacting a door opening edge of the vehicle body when the door is closed;

it is characterized by comprising:

a back lip portion extending toward the die forming portion side from a predetermined position spaced upward from a vehicle exterior protrusion formed at a mounting base portion of the upper extrusion molding portion, the back lip portion being continuously provided so as to straddle the joining step portion while being in elastic contact with a vehicle interior surface of an upper end edge portion located above a vehicle exterior protrusion of the rail portion of the roll sash;

and a first bead portion provided continuously with the vehicle exterior protrusion formed at the mounting base portion of the upper extrusion molded portion, extending from the vehicle exterior surface of the vehicle exterior protrusion of the mounting base portion of the die molded portion toward the joining step difference portion side, and provided continuously so as to elastically contact the vehicle interior surface of the rising surface of the press sash across the joining step difference portion while elastically contacting the vehicle exterior concave portion rising surface of the rail portion of the roll sash.

2. The door weather strip according to claim 1, wherein a second bead portion is provided which is provided continuously to the vehicle exterior protrusion formed at the attachment base portion of the upper extrusion molded portion, extends from a lower surface of the vehicle exterior protrusion of the attachment base portion of the die molded portion toward the engagement step difference portion side, and is provided continuously so as to elastically contact an upper surface of the attachment surface of the press sash across the engagement step difference portion while elastically contacting a bottom surface portion of the rail portion of the roll sash, the attachment surface being provided toward the vehicle interior side from below a rising surface of the press sash, and the attachment base portion of the die molded portion being attached to the attachment surface.

3. The door weather strip according to claim 1, wherein the back lip portion branches into a back surface horizontal extension portion that linearly extends from the upper extrusion molded portion while remaining unchanged, and a back surface descending extension portion that descends and extends above the first bead portion, at an upper portion of the die molded portion.

4. The door weather strip according to claim 2, wherein the back lip portion branches into a back surface horizontal extension portion that linearly extends from the upper extrusion molded portion while remaining unchanged, and a back surface descending extension portion that descends and extends above the first bead portion, at an upper portion of the die molded portion.

5. The door weather strip of claim 1, wherein the first bead portion is arranged to be gradually biased toward the vehicle exterior side as it descends within the mold molding portion.

6. The door weather strip of claim 2, wherein the first bead portion is arranged to be gradually biased toward the vehicle exterior side as it descends within the mold molding portion.

7. The door weather strip of claim 3, wherein the first bead portion is arranged to be gradually biased toward the vehicle exterior side as it descends within the mold molding portion.

8. The door weather strip of claim 4, wherein the first bead portion is arranged to be gradually biased toward the vehicle exterior side as it descends within the mold molding portion.

9. The door weather strip according to any one of claims 2, 4, 6 and 8, wherein a highly foamed sponge material is provided on the vehicle interior side of the position where the second bead portion is provided continuously.

10. The door weather strip according to claim 9, wherein the high foaming sponge material is provided so as to be gradually biased toward the vehicle outer side as it goes down from the die molding portion toward the lower extrusion molding portion side.

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