JP2012030656A - Opening trim weather strip for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening trim weather strip for an automobile, reduced in weight, easily installed on a corner part, and easily manufactured.SOLUTION: The opening trim weather strip 10 includes: a mounting base 20 mounted on a flange 7 provided at a vehicle body opening part peripheral edge 6; and a seal part which is integrally provided with the mounting base 20, and seals between a vehicle body opening part opening/closing member 2, and the vehicle body opening part peripheral edge 6 by abutting with the vehicle body opening part opening/closing member 2. The mounting base 20 is formed to have an approximately U shape in cross section, having a vehicle outside side wall 21, a bottom wall 23, and a vehicle inside side wall 22 without embedding a metallic insert. The bottom wall 23 is formed of a hard resin plate 26 continuing in a longitudinal direction, or the hard resin plate 26 continuing in the longitudinal direction is embedded in the bottom wall 23. The hard resin plate 26 has a higher rigidity than that of the vehicle outside side wall 21 or the vehicle inside side wall 22.

Description

  The present invention relates to an automotive opening trim weather strip for sealing between a vehicle body opening / closing member for opening / closing a vehicle body opening such as an automobile door and a periphery of the vehicle body opening.

In the following, the present invention will be described with reference to an opening trim weather strip (hereinafter referred to as OTWS) 10 that seals between the door 2 of the automobile and the peripheral edge 6 of the vehicle body opening as shown in FIG.
Conventionally, as shown in FIGS. 6 and 7, a seal between the door 2 of the automobile and the peripheral edge 6 of the vehicle body is a door weather strip 170 attached to the outer periphery of the door frame 2a and the door panel 2b in the door 2, The glass run 160 is attached to the inner periphery of the door frame 2a and the like and seals between the door glass 5 and the OTWS 110 attached to the flange 7 on the periphery 6 of the vehicle body opening. The flange 7 is formed by an outer panel 9 that defines the vehicle body opening peripheral edge 6, an inner panel 8 on the inside of the vehicle, and the like.

  An OTWS 110 is attached to the flange 7 at the opening of the vehicle body, and the door 2 and the vehicle body opening periphery 6 are located further inside the vehicle than the portion where the door weather strip 170 seals the vehicle body opening periphery 6. The gap is sealed. The OTWS 110 is attached to the flange 7 by an attachment base portion 120 having a substantially U-shaped cross section, and the hollow seal portion 130 is in contact with the door frame bulge portion 2c for sealing. A metal insert is not embedded in the mounting base 120 shown in FIG. 6, but a metal insert or the like is provided inside the conventional mounting base 120 in order to grip the flange 7 along the inside of the substantially U-shaped cross section. The core material is embedded, and a flange holding lip is provided on the inner surface.

  However, since this conventional OTWS 110 has a metal insert, the weight increases. Therefore, in order to meet the demand for weight reduction of automobiles, it has been considered to abolish metal inserts.

  For this reason, as shown in FIG. 9, in the OTWS 210 to be attached to the opening of the vehicle body, a trim portion 220 to be attached to the flange 7 and a hollow seal portion 230 are integrally provided from the trim portion 220. A double-sided adhesive tape 222 is attached to the surface of the flange 221 facing the flange 7 and bonded to the side surface of the flange 7 (see, for example, Patent Documents 1 and 2). However, in this case, it is necessary to attach the double-sided adhesive tape 222 over the entire surface of the vehicle outer side wall 221, but the double-sided adhesive tape 222 is expensive and causes an increase in cost.

  It is also possible to use a clip instead of the double-sided adhesive tape 222 to attach the vehicle outer side wall 221 to the flange 7. However, when using a clip, the clip and clip are attached to the upper side of the opening of the vehicle body. The vehicle outer side wall 221 hangs down during this period, and a problem that the sealing performance deteriorates can be considered. For this reason, the clip could not be used.

  Further, as shown in FIG. 10, in an OTWS 310 having a trim portion 320 using solid rubber without using a metal insert and a hollow seal portion 330 using sponge rubber, both ends of the bottom wall 323 of the trim portion 320 and the vehicle Some shoulder portions 324 and 325, which are continuous portions of the outer side wall 321 and the vehicle inner side wall 322, are formed in a sharp corner so that the tips of the vehicle outer side wall 321 and the vehicle inner side wall 322 are difficult to open (for example, patents). See references 3 and 4.) However, in this case, even if the bottom wall 323, the vehicle outer side wall 321 and the vehicle inner side wall 322 are formed of the same rigid large solid rubber, the front end of the vehicle outer side wall 321 and the vehicle inner side wall 322 are sufficiently opened. Could not be prevented.

  Further, as shown in FIG. 11, in the OTWS 410 having a trim portion 420 that does not use a metal insert and a hollow seal portion 430 that uses sponge rubber, the bottom wall 423 of the trim portion 420 and the inner surface of the vehicle interior side wall 422 are continuous. Some use a member 425 made of a high-hardness rubber material or a high-hardness resin material having an L-shaped cross section (see, for example, Patent Document 5). However, in this case, when the OTWS 410 is attached to the corner portion of the vehicle body opening peripheral edge 6, the rigidity of the member 425 is large, it is difficult to bend along the corner portion, and it is difficult to attach the OTWS 410 to the vehicle body opening peripheral edge 6. .

JP 2001-274285 A JP 2007-152978 A JP 2009-280193 A JP 2010-006200 A Japanese Patent No. 3756627

  Therefore, an object of the present invention is to provide an automobile OTWS that is reduced in weight, easy to be mounted on a corner portion, and easy to manufacture.

In order to solve the above-mentioned problem, the present invention of claim 1 is an OTWS that seals between a vehicle body opening / closing member of an automobile and a periphery of the vehicle body opening of the automobile.
The OTWS is attached to a flange provided at the periphery of the vehicle body opening, and is provided integrally with the attachment base, and is in contact with the vehicle body opening / closing member so as to contact the vehicle body opening / closing member and the vehicle body opening periphery. Having a seal part to seal between,
The mounting base does not embed a metal insert and is formed in a substantially U-shaped cross section having a vehicle outer side wall, a bottom wall, and a vehicle inner side wall, and the bottom wall is formed of a hard resin plate that is continuous in the longitudinal direction or a bottom. The hard resin plate is an OTWS for automobiles characterized by having a hard resin plate continuous in the longitudinal direction on the wall, and the hard resin plate has higher rigidity than the vehicle outer side wall and the vehicle inner side wall.

  In the first aspect of the present invention, the OTWS is provided integrally with the mounting base attached to the flange provided on the periphery of the vehicle body opening, and is provided integrally with the mounting base, and contacts the vehicle body opening / closing member to open / close the vehicle body opening. A seal portion for sealing between the member and the periphery of the opening of the vehicle body is provided. For this reason, when the attachment base is attached to the periphery of the vehicle body opening, the seal portion comes into contact with the vehicle body opening / closing member when the vehicle body opening / closing member is closed, and seals between the vehicle body opening / closing member and the vehicle body opening periphery. can do.

Since the mounting base does not embed a metal insert, it is possible to reduce the weight of the mounting base and contribute to the weight reduction of the automobile.
The mounting base is formed in a substantially U-shaped cross section having a vehicle outer side wall, a bottom wall, and a vehicle inner side wall, and the bottom wall is formed of a hard resin plate that is continuous in the longitudinal direction, or is rigid that is continuous with the bottom wall in the longitudinal direction. It has a resin plate, and the rigid resin plate is formed to have higher rigidity than the vehicle outer side wall and the vehicle inner side wall. For this reason, it is attached to a hard resin plate having a rigidity higher than that of the vehicle outer side wall and the vehicle inner side wall, or prevents the opening of the front end portion of the vehicle outer side wall and the vehicle inner side wall attached to the bottom wall having the hard resin plate. Can do.

  Further, since the cross-sectional shape of the hard resin plate is flat, when the OTWS is attached to the corner of the periphery of the vehicle body opening, it is easy to bend along the corner and it is easy to attach the OTWS to the periphery of the vehicle body opening. . Furthermore, the rigid resin plate has high rigidity, and even if the other part of the attachment base is formed of rubber, thermoplastic elastomer, or the like, it is possible to suppress the elongation in the longitudinal direction of the OTWS.

  According to the present invention of claim 2, the hard resin plate is made of an olefinic thermoplastic resin, and the other part of the OTWS is an OTWS for automobiles made of EPDM rubber or an olefinic thermoplastic elastomer.

In the second aspect of the present invention, since the hard resin plate is formed of an olefin-based thermoplastic resin, it has sufficient rigidity and excellent weather resistance.
The other part of OTWS is made of EPDM rubber or olefinic thermoplastic elastomer, so it can be firmly welded and bonded to the hard resin plate at the time of extrusion molding. Can be recycled.

  The present invention of claim 3 is an automotive OTWS in which the base side portion and the vehicle inner side wall of the vehicle outer side wall are formed of a harder rubber or thermoplastic elastomer than the tip side portion of the vehicle outer side wall.

  According to the third aspect of the present invention, the base side portion and the vehicle inner side wall of the vehicle outer side wall are formed of a harder rubber or thermoplastic elastomer than the tip side portion of the vehicle outer side wall. The bending of the side wall can be suppressed and the force with which the mounting base holds the flange can be improved.

  According to a fourth aspect of the present invention, an outer side holding lip and an inner side holding lip for holding a flange are respectively formed on opposite inner surfaces of the outer side wall and the inner side wall. The inner holding lip is an OTWS for automobiles formed of rubber or thermoplastic elastomer that is softer than a portion on the base side of the outer side wall of the vehicle and the inner side wall of the vehicle.

According to the fourth aspect of the present invention, the vehicle outer side holding lip and the vehicle inner side holding lip are formed on the opposite inner surfaces of the vehicle outer side wall and the vehicle inner side wall, respectively. Can firmly hold the side surface of the flange, and the mounting base is unlikely to come off the flange.
Since at least a part of the vehicle outer side holding lip and the vehicle inner side holding lip are formed of a rubber or thermoplastic elastomer softer than the base side portion of the vehicle outer side wall and the vehicle inner side wall, a flange is inserted into the mounting base. The flange can be flexibly bent to hold the flange, and even if the thickness of the flange changes, the holding lip can be bent to maintain the insertion workability.

  The present invention of claim 5 is an automotive OTWS in which the seal portion is a hollow seal portion having a hollow portion.

  According to the fifth aspect of the present invention, since the seal portion is a hollow seal portion having a hollow portion, when it comes into contact with the vehicle body opening / closing member, it bends flexibly along the shape of the vehicle body opening / closing member, and has a sealing property. Can be ensured, the contact area is large, and the sealing performance can be maintained even when the vehicle body opening / closing member is assembled unevenly.

  The present invention of claim 6 is an automotive OTWS in which the hollow seal portion is extended from the vehicle outer side wall and has a bridge portion that bisects the hollow portion.

  According to the present invention of claim 6, since the hollow seal portion is formed with a bridge portion that extends from the vehicle outer side wall and bisects the hollow portion, when the hollow seal portion comes into contact with the vehicle body opening / closing member, the hollow seal portion The portion can be reliably sealed without being deformed abnormally, and when attached to the corner portion, the hollow seal portion is unlikely to buckle.

In the present invention, the bottom wall is formed of a hard resin plate that is continuous in the longitudinal direction, or the hard resin plate that is continuous in the longitudinal direction is embedded in the bottom wall. Opening can be prevented.
Further, since the cross-sectional shape of the hard resin plate is flat, when the OTWS is attached to the corner of the periphery of the vehicle body opening, it is easy to bend along the corner and it is easy to attach the OTWS to the periphery of the vehicle body opening. . Furthermore, the rigid resin plate has high rigidity and can suppress the elongation of the OTWS in the longitudinal direction.

FIG. 9 is a cross-sectional view showing a state in which the OTWS according to the first embodiment of the present invention is attached to the periphery of the vehicle body opening at a portion along the line AA in FIG. OTWS which is the 2nd Embodiment of this invention is sectional drawing of the part along the AA in FIG. OTWS which is the 3rd embodiment of the present invention is a sectional view of a portion which met an AA line in FIG. OTWS which is the 4th Embodiment of this invention is sectional drawing of the part along the AA in FIG. FIG. 9 is a cross-sectional view of a state in which an OTWS according to a fifth embodiment of the present invention is attached to the periphery of a vehicle body opening at a portion along line AA in FIG. FIG. 4 is a cross-sectional view of the periphery of the vehicle body opening and the upper side of the door frame in a state where the OTWS according to the embodiment of the present invention is attached to the upper side of the periphery of the vehicle body opening and the door is closed. It is the perspective view seen from the back of a car in the state where the door of a car was opened, showing the attachment state to the body opening part edge of OTWS. It is a front view of OTWS which is an embodiment of the invention. It is sectional drawing in the state which attached conventional OTWS to the opening edge of a motor vehicle. It is sectional drawing in the state which attached other conventional OTWS to the opening edge of the motor vehicle. It is sectional drawing of other conventional OTWS.

An embodiment of the present invention will be described by taking an example of an OTWS 10 that closes a door 2 that is a vehicle body opening / closing member and a vehicle body opening peripheral edge 6 of a vehicle body opening to which the door 2 is attached.
First to fifth embodiments of the present invention will be described with reference to FIGS.
FIGS. 1 to 5 are sectional views of a portion along the line AA in FIG. 8 in a state where the OTWS 10 according to the first to fifth embodiments of the present invention is mounted on the peripheral edge 6 of the vehicle body opening in FIG. is there.

As shown in FIG. 7, a vehicle body 1 of an automobile has a vehicle body opening, and the vehicle body opening is opened and closed by a door 2 that is a vehicle body opening opening / closing member. The periphery of the vehicle body opening forms a periphery 6 of the vehicle body opening, and the periphery of the vehicle body opening 6 is welded to the front end of the outer panel 9 and the inner panel 8 constituting the vehicle body 1 to form the flange 7 (FIGS. 1 and 5). See). An OTWS 10 that seals between the periphery 6 of the vehicle body opening and the door 2 is attached to the flange 7.
The thickness of the flange 7 varies depending on the region of the vehicle body opening periphery 6 because the number of panels to be welded varies from about 2 to about 5 depending on the region of the vehicle body opening periphery 6 of the vehicle body 1.

  As shown in FIG. 6, the seal between the door 2 of the automobile and the peripheral edge 6 of the vehicle body includes a door weather strip 70 attached to the outer periphery of the door frame 2a and the door panel 2b in the door 2, and the door. The glass run 60 is attached to the inner periphery of the frame 2a and the like and seals between the door glass 5 and the OTWS 10 attached to the flange 7 on the periphery 6 of the vehicle body opening.

  The OTWS 10 is formed linearly by extrusion. One OTWS 10 formed in a straight line is formed in an annular shape by a connecting portion 11 as shown in FIG. 8, and along the shape of the periphery 6 of the vehicle body opening as shown in FIG. Attached to the flange 7 of the peripheral edge 6. If it is formed in an annular shape, it can be easily mounted without any gap on the periphery 6 of the vehicle body opening.

  The connection part 11 that connects both ends of the OTWS 10 can be formed of a softer material than the other parts formed by extrusion. In this case, since the connecting portion 11 that is formed in an annular shape and connects both ends when formed on the flange 7 is formed of a soft material, the soft material can be easily expanded and contracted, and the expansion and contraction when the OTWS 10 is mounted can be reduced. Can be absorbed.

Moreover, you may adhere | attach the terminal of OTWS10 with an adhesive agent before mounting | wearing, and you may make it cyclic | annular.
Further, before the mounting, it is possible to sequentially connect one end of the linear OTWS 10 to the flange 7 without connecting to the ring, and when the mounting is completed, the other terminal is joined to the one terminal. Good.

Next, a cross-sectional shape of the OTWS 10 according to the first embodiment will be described with reference to FIG.
The OTWS 10 is attached to a flange 7 formed on the peripheral edge 6 of the vehicle body opening, and is formed integrally with the trim portion 20 which is a mounting base portion having a substantially U-shaped cross section, and the trim portion 20. 2c, and a seal portion that seals between the door 2 and the periphery 6 of the vehicle body opening. Although the seal part of 1st Embodiment was formed as the hollow hollow seal part 30, a seal part can also be formed in a lip shape.

  The trim portion 20 has a substantially U-shaped cross section having a vehicle outer side wall 21, a vehicle inner side wall 22 and a bottom wall 23. Since the trim portion 20 can cope with the change in the thickness of the flange 7, the bottom wall 23 has a predetermined width dimension. The vehicle outer side wall 21, the vehicle inner side wall 22 and the bottom wall 23 of the trim part 20 are integrally formed continuously, and an insert (core material) formed of a metal plate that reinforces the clamping force for clamping the flange 7 is embedded. It has not been. For this reason, the OTWS 10 can be reduced in weight.

In the first embodiment, as shown in FIG. 1, the bottom wall 23 is formed only from a hard resin plate 26 formed in a flat plate shape of hard synthetic resin. The hard resin plate 26 which is the bottom wall 23 is an OTWS which will be described later.
It can be extruded simultaneously with the other 10 parts. Alternatively, the long hard resin plate 26 may be formed in advance, the long hard resin plate 26 may be supplied to an extrusion molding machine, and the other part of the OTWS 10 may be formed. In the first embodiment, the bottom wall 23 is made of polypropylene resin. The hard resin plate 26 can also be formed of other hard olefinic synthetic resins such as polyethylene resin.

  In the first embodiment, the hard resin plate 26 having a thickness of about 1.2 mm is used, but it is preferably used in the range of 1.0 to 1.5 mm. Since the hard resin plate 26 has this thickness, the trim portion 20 can be bent and deformed in the thickness direction of the hard resin plate 26 when the trim portion 20 is attached to the corner portion of the peripheral edge 6 of the vehicle body opening. Easy.

  In the first embodiment, the hardness of the hard resin plate 26 is 95 degrees in terms of Rockwell hardness in the case of polypropylene resin. In addition, it is preferable to use in the range of 85-110 degree | times by Rockwell hardness. In the case of a polyethylene resin, a resin having a Shore D hardness of 65 degrees is used. In addition, it is preferable to use in the range of 60-70 degree | times by Shore D hardness.

In the first embodiment, the vehicle interior side wall 22 is directly welded to the surface of the hard resin plate 26 and has a flat cross-sectional shape. The inner side wall 22 of the vehicle uses an IRDM 90 degree EPDM solid rubber. This hardness is preferably used in the range of IRHD 85 to 95 degrees. In addition to the EPDM solid rubber, an olefin-based thermoplastic elastomer having the same degree of hardness can be used. Since high-hardness EPDM solid rubber or olefin-based thermoplastic elastomer is used, when the flange 7 is inserted into the trim portion 20, there is little bending, and the flange 7 can be firmly tightened even if a metal insert is not embedded. Can be held.
The vehicle inner side wall 22 is formed with a thickness of about 3 mm, and the holding force of the flange 7 can be secured.

  Since EPDM solid rubber or olefinic thermoplastic elastomer has good compatibility with olefinic synthetic resins such as polypropylene resin, when the vehicle interior side wall 22 is extrusion molded, it is firmly bottomed by the heat in the molten state at the time of extrusion molding. It can be welded to the polypropylene resin which is the hard resin plate 26 of the wall 23.

  A vehicle inner side holding lip 25 extends obliquely from the inner surface of the vehicle inner side wall 22 toward the vehicle outer side wall 21. The interior holding lip 25 uses EPDM solid rubber with IRHD of 70 degrees. This hardness is preferably used in the range of IRHD 65 to 80 degrees. In addition to the EPDM solid rubber, an olefin-based thermoplastic elastomer having the same degree of hardness can be used.

  The vehicle inner side holding lip 25 is extended long by one, and is formed of a softer material than the vehicle inner side wall 22. For this reason, even if the thickness of the flange 7 is different depending on each part of the periphery 6 of the vehicle body opening, the vehicle inner side holding lip 25 can bend in response to the change in the thickness, and the trim portion 20 is attached to the flange 7. It is easy to install and can maintain its holding power.

  The vehicle outer side wall 21 is formed of a vehicle outer side wall root portion 21a that is welded to the bottom wall 23 that is the hard resin plate 26, and a vehicle outer side wall tip portion 21b that extends from the tip of the vehicle outer side wall root portion 21a. The As with the vehicle inner side wall 22, the vehicle outer side wall root portion 21a uses an IRDM 90 degree EPDM solid rubber. This hardness is preferably used in the range of IRHD 85 to 95 degrees.

  In addition to the EPDM solid rubber, an olefin-based thermoplastic elastomer having the same degree of hardness can be used. Since high-hardness EPDM solid rubber or olefin-based thermoplastic elastomer is used, when the flange 7 is inserted into the trim portion 20, there is little bending and the flange 7 can be held firmly. The wall thickness of the vehicle outer side wall root portion 21a is approximately the same as the wall thickness of the vehicle inner side wall 22, and the flange 7 can be firmly held.

  A vehicle outer side holding lip 24 is obliquely extended from the inner surface of the vehicle outer side wall root portion 21 a toward the vehicle inner side wall 22. What extends from the vehicle outer side wall root portion 21a of the vehicle outer side holding lip 24 is formed of the same material as the vehicle outer side wall root portion 21a, and uses EPDM solid rubber of IRHD 90 degrees.

  Sealers 27 are filled in corners formed by the inner surface of the vehicle outer side wall root portion 21 a and the inner surface of the bottom wall 23. The sealer 27 is made of adhesive rubber or resin material. When the flange 7 is attached to the trim portion 20, the end of the flange 7 is embedded in the sealer 27. For this reason, rain water and noise can be prevented from entering from the tip of the flange 7 and the sealing performance of the trim portion 20 can be improved.

  The vehicle outer side wall front end portion 21b extends in the extending direction from the front end of the vehicle outer side wall root portion 21a. The vehicle outer side wall front end portion 21 b uses the same IRDM 70 degree EPDM solid rubber as the vehicle inner side holding lip 25. This hardness is preferably used in the range of IRHD 65 to 80 degrees. In addition to the EPDM solid rubber, an olefin-based thermoplastic elastomer having the same degree of hardness can be used. For this reason, it can bend according to the shape of the flange 7 of the vehicle body opening periphery 6.

  Two vehicle outer side holding lips 24 are obliquely extended from the inner surface of the vehicle outer side wall front end portion 21 b toward the vehicle inner side wall 22. The vehicle outer side holding lip 24 extended from the vehicle outer side wall front end portion 21b is formed of the same material as that of the vehicle outer side wall front end portion 21b, and uses an EPDM solid rubber of IRHD 70 degrees. The two vehicle outer side holding lips 24 and one vehicle outer side holding lip 24 extending from the vehicle outer side wall root portion 21 a abut against the vehicle outer side surface of the flange 7. Hold.

  Next, the hollow seal portion 30 according to the first embodiment of the present invention will be described. A hollow seal portion 30 is integrally provided on the outer surface of the vehicle outer side wall 21. When the door is closed, the hollow seal portion 30 contacts the door frame bulging portion 2c of the door 2 to seal between the door 2 and the vehicle body opening peripheral edge 6.

  The hollow seal portion 30 includes a hollow seal first holding wall 31 extending from the outer surface portion of the vehicle outer side wall 21, a hollow seal second holding wall 32 extending upward from the front end side of the vehicle outer side wall 21, and An arc-shaped hollow seal abutting wall 33 that is connected to the respective ends of the hollow seal first holding wall 31 and the hollow seal second holding wall 32 and seals against the door 2 that is a vehicle body opening / closing member is provided. Yes. For this reason, the hollow seal part 30 maintains the hollow shape by the hollow seal first holding wall 31 and the hollow seal second holding wall 32 supporting the hollow seal abutting wall 33, and has a sealing property with the door 2. It can be secured.

  The hollow seal first holding wall 31 extends obliquely outward from the side surface of the vehicle outer side wall 21 (in the diagonally lower right direction in FIG. 1), and is parallel to the extension direction of the vehicle outer side wall 21 in the vicinity of the center. 1 in the lateral direction). The hollow seal contact wall 33 is connected to the bent tip as described above. The hollow seal first holding wall 31 is formed of EPDM solid rubber having an IRHD of 70 degrees in the same manner as the vehicle outer side wall front end portion 21b.

  The hollow seal first holding wall 31 is formed of a solid material, and the hollow seal second holding wall 32, the hollow seal abutting wall 33, and a bridge portion 34 described later are formed of a sponge material. For this reason, when it is bent along the corner portion of the flange 7 and attached, the hollow seal first holding wall 31 is not easily deformed and maintains a hollow shape, and the OTWS 10 is a portion formed of a sponge material. The weight of the OTWS 10 can be reduced.

  A hollow seal extending portion 37 is formed in the extending direction of the hollow seal abutting wall 33 from the connecting portion of the hollow seal first holding wall 31 and the hollow seal abutting wall 33. The distal end of the hollow seal extension 37 covers the side end of the garnish 50 that is an interior member attached to the interior of the vehicle. For this reason, the aesthetics of the attachment part of OTWS10 can be improved.

  The hollow seal portion 30 is formed with a bridge portion 34 that connects the vehicle outer side wall 21 and the hollow seal contact wall 33. The bridge portion 34 supports the hollow seal abutting wall 33 when the hollow seal abutting wall 33 abuts on the door frame bulging portion 2c, and prevents the hollow seal abutting wall 33 from being greatly recessed. The contact pressure at which the hollow seal contact wall 33 comes into contact with the door frame bulging portion 2c can be increased. For this reason, the space | interval between the door frame bulging part 2c and the hollow seal part 30 can be reliably sealed. Further, even when the OTWS 10 is attached to bend along the corner portion of the vehicle body opening peripheral edge 6, the hollow seal portion 30 can be prevented from buckling.

  A plurality of circular air holes 35 and 36 communicating with the hollow seal abutting wall 33 and the bridge portion 34 are formed at predetermined intervals in the longitudinal direction. When the door frame bulging portion 2c presses the hollow seal portion 30 when the door is closed, the air in the hollow seal portion 30 is discharged from the air holes 35 and 36, and the door closing force can be reduced.

  As shown in FIG. 1, the hollow seal abutting wall 33 is formed with a thick wall in the vicinity of the center where the inside is swollen with respect to the other portions. For this reason, when the hollow seal contact wall 33 of the hollow seal portion 30 contacts the door frame bulging portion 2c, the thick portion near the center of the hollow seal contact wall 33 has increased rigidity and is It is difficult to dent and sealability can be secured.

  On the surfaces of the hollow seal second holding wall 32, the hollow seal abutting wall 33 and the hollow seal extension portion 37, a hollow seal portion skin layer 38 made of the same solid material as the hollow seal first holding wall 31 is formed. For this reason, the surface of the hollow seal part 30 is smooth and can improve appearance. Moreover, the rigidity of the hollow seal extension part 37 can be improved, and the tip of the hollow seal extension part 37 can be prevented from rising.

  Next, a second embodiment of the present invention will be described with reference to FIG. The second embodiment is different from the first embodiment in the configuration of the bottom wall 23 and the other parts are the same, so the differences will be mainly described and the same as in the first embodiment. Descriptions of these parts are omitted.

  The bottom wall 23 in the second embodiment includes a hard resin plate 26 and a bottom wall inner layer 23a formed on the inner surface thereof. The bottom wall inner layer 23 a is formed continuously with the lower end of the vehicle inner side wall 22 and the lower end of the vehicle outer side wall root portion 21 a and covers the inner surface side of the trim portion 20 of the hard resin plate 26. The bottom wall inner layer 23a is formed of EPDM solid rubber having an IRHD of 90 degrees, which is the same material as the vehicle inner side wall 22 and the vehicle outer side wall root portion 21a.

  For this reason, the welding area of the hard resin board 26 and the bottom wall inner layer 23a is large, and the vehicle inner side wall 22 and the vehicle outer side wall root portion 21a can be firmly attached to the bottom wall 23. Further, when the trim portion 20 is attached to the flange 7, even if the front end of the flange 7 abuts against the bottom wall 23, the front end of the flange 7 abuts against the bottom wall inner layer 23a formed of solid rubber or the like. Without contacting the hard resin plate 26, it is possible to absorb the impact and prevent the generation of abnormal noise.

  In addition, the protrusion which continues in a longitudinal direction can be formed in the surface which contact | connects the vehicle interior side wall 22 of the hard resin board 26. FIG. In this case, since the protrusion enters the bottom surface of the vehicle interior side wall 22 to form the trim portion 20, the contact area between the vehicle interior side wall 22 and the hard resin plate 26 is increased, and the adhesive force is improved. The vehicle interior side wall 22 is less likely to collapse.

  Next, a third embodiment of the present invention will be described with reference to FIG. Compared with the first embodiment, the third embodiment is different from the first embodiment in the configuration of the vehicle outer side wall 21 and the other parts are the same. Description of similar parts is omitted.

  The vehicle outer side wall 21 in the third embodiment is formed to be slightly inclined with respect to the bottom wall 23 in the vehicle inner side wall 22 direction as compared with the first embodiment. For this reason, even if the OTWS 10 is attached to the curved portion of the vehicle body opening peripheral edge 6, it is possible to prevent the opening of the trim portion 20 from being opened, improve the sealing performance, and ensure the holding force of the flange 7. it can.

  The vehicle outer side wall root portion 21a is formed integrally with the vehicle outer end of the hard resin plate 26, which is the bottom wall 23, and slightly protrudes outward from the vehicle. For this reason, even if the vehicle outer side wall 21 is formed to be inclined, the dimension of the opening of the trim portion 20 can be ensured in the same manner as in the first embodiment. The vehicle outer side holding lip 24 formed on the inner surface of the vehicle outer side wall root portion 21 a is formed so as to protrude slightly longer in the inner direction of the trim portion 20. A sealer 27 is filled from the surface on the bottom wall 23 side of the vehicle outer side holding lip 24 to the inner surface of the bottom wall 23.

  A vehicle outer side wall front end portion 21b is formed in the extending direction of the vehicle outer side wall root portion 21a, and two vehicle outer side holding lips 24 are formed on the inner surface of the vehicle outer side wall front end portion 21b. The outside holding lip 24 is formed shorter. When the flange 7 is inserted into the trim portion 20, the vehicle outer side holding lip 24 is formed longer in order from the opening side to the bottom wall 23 side. In addition, the three vehicle exterior holding lips 24 can similarly abut against the side surface of the flange 7. For this reason, the force which the trim part 20 hold | maintains a flange is securable.

  Next, a fourth embodiment of the present invention will be described with reference to FIG. The fourth embodiment is different from the first embodiment in the configuration of the bottom wall 23 and the other parts are the same, so the differences will be mainly described and the same as in the first embodiment. The description of these parts is omitted.

  The bottom wall 23 in the fourth embodiment is formed by embedding a hard resin plate 26 inside the bottom wall 23, and includes a bottom wall inner layer 23 a formed on the inner surface side of the trim portion 20, and an outer surface of the trim portion 20. It has a bottom wall outer layer 23b formed on the side. The bottom wall inner layer 23a and the bottom wall outer layer 23b are formed continuously at the end so as to wrap the hard resin plate 26, and the bottom wall inner layer 23a is formed with a lower end of the vehicle inner side wall 22 and a lower end of the vehicle outer side wall root portion 21a. It is formed continuously. The bottom wall inner layer 23a and the bottom wall outer layer 23b are made of EPDM solid rubber having an IRHD of 90 degrees, which is the same material as the vehicle inner side wall 22 and the vehicle outer side wall root portion 21a.

  Therefore, the hard resin plate 26 can be completely fixed, and the vehicle interior side wall 22 and the vehicle exterior side wall root portion 21a can be firmly attached to the bottom wall 23 as in the second embodiment. Further, when the trim portion 20 is attached to the flange 7, even if the front end of the flange 7 abuts against the bottom wall 23, the front end of the flange 7 abuts against the bottom wall inner layer 23a formed of solid rubber or the like. Without contacting the hard resin plate 26, it is possible to absorb the impact and prevent the generation of abnormal noise.

  Next, a fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, compared to the first embodiment, the cover lip 40 is formed from the bottom wall 23, the hollow shape of the hollow seal portion 30 and the hollow seal extension portion 37 are formed. Since the other parts are the same, the differences will be mainly described, and the description of the same parts as those in the first embodiment will be omitted.

  A cover lip 40 is formed so as to cover the outer surface of the bottom wall 23 in a circular arc shape from the outer surface of the bottom wall 23 in the fifth embodiment. The tip of the cover lip 40 is attached so as to cover the tip of the garnish 50. For this reason, even if the tip of the garnish 50 is not formed long so as to cover the entire bottom wall 23 as in the first embodiment, the gap between the garnish 50 and the OTWS 10 can be covered, The appearance is improved.

For the cover lip 40, sponge EPDM rubber or solid EPDM rubber can be used. In this case, the weight of the OTWS 10 can be reduced.
Further, the cover lip 40 can be formed of a soft material. For example, a soft olefinic thermoplastic elastomer can be used. In this case, the cover lip 40 can be colored according to the color of the garnish 50 or other interior material.

  In the hollow seal portion 30 in the fifth embodiment, a hollow seal first holding wall 31, a hollow seal second holding wall 32, and a hollow seal abutting wall 33 are integrally formed in a substantially arc shape, and the hollow seal extends. The part 37 is not formed. Moreover, since the hollow seal part 30 is formed in a substantially arc shape as a whole, the strength is high and the bridge part 34 is not formed.

Next, a method for manufacturing the OTWS 10 will be described.
The OTWS 10 is formed by extrusion molding, and two types of solid rubber having different hardness constituting the mounting base portion 20 and sponge rubber constituting the hollow seal portion 30 can be integrally extruded by an extruder. When the hard resin plate 26 is used as the bottom wall 23, the hard resin plate 26 is extruded simultaneously with the trim portion 20 and the hollow seal portion 30, or the hard resin plate 26 is formed in advance to form the trim portion 20 and the hollow portion. It is possible to perform extrusion molding simultaneously with the seal portion 30. Similarly, when the hard resin plate 26 is embedded in the bottom wall 23, it is extruded simultaneously with the trim portion 20 and the hollow seal portion 30.

  In the molding of OTWS 10, synthetic rubber and synthetic resin (thermoplastic elastomer) are used when the molding material is a solid material. For example, EPDM rubber is used for synthetic rubber, and polyolefin elastomer is used for thermoplastic elastomer. As the sponge material, the above EPDM rubber and thermoplastic elastomer are used by foaming.

In the case of synthetic rubber, it is conveyed to a vulcanizing tank after extrusion and heated by hot air or high frequency to vulcanize and foam. In the case of a hard synthetic resin (thermoplastic elastomer), it is heated and foamed simultaneously with or after extrusion, and then cooled and solidified. Thereafter, it is cut to a predetermined length to produce an extruded part.
The extruded OTWS 10 may be cut into a predetermined size and connected in a ring shape by molding or the like at the connection portion 11 and attached to the flange 7 at the opening edge of the vehicle body of the automobile.

2 Door 6 Car body opening periphery 7 Flange 10 OTWS
20 Trim (mounting base)
21 Car Outer Side Wall 21a Car Outer Side Wall Root 21b Car Outer Side Wall Tip 22 Car Inner Side Wall 23 Bottom Wall 26 Hard Resin Plate 30 Hollow Seal Part

Claims (6)

In the opening trim weather strip that seals between the vehicle body opening / closing member of the vehicle and the periphery of the vehicle body opening of the vehicle
The opening trim weather strip is attached to a flange provided at the periphery of the vehicle body opening, and is provided integrally with the mounting base, and contacts the vehicle body opening / closing member to open / close the vehicle body opening / closing member. A seal portion for sealing between the member and the periphery of the vehicle body opening,
The mounting base is formed with a substantially U-shaped cross section having a vehicle outer side wall, a bottom wall, and a vehicle inner side wall without embedding a metal insert, and is the bottom wall formed of a hard resin plate continuous in the longitudinal direction? Alternatively, the opening trim weather strip for automobiles has a hard resin plate continuous in the longitudinal direction on the bottom wall, and the hard resin plate has higher rigidity than the vehicle outer side wall and the vehicle inner side wall.   2. The automobile opening trim web according to claim 1, wherein the hard resin plate is formed of an olefinic thermoplastic resin, and the other part of the opening trim weather strip is formed of an EPDM rubber or an olefinic thermoplastic elastomer. The strip.   3. The automobile-use vehicle according to claim 1, wherein the base side portion and the vehicle inner side wall of the vehicle outer side wall are formed of rubber or thermoplastic elastomer that is harder than a tip side portion of the vehicle outer side wall. Opening trim weather strip.   A vehicle outer side holding lip and a vehicle inner side holding lip for holding the flange are respectively formed on opposite inner surfaces of the vehicle outer side wall and the vehicle inner side wall, and at least a part of the vehicle outer side holding lip and the vehicle inner side holding lip are The opening trim weather strip for automobiles according to any one of claims 1 to 3, which is formed of a softer rubber or a thermoplastic elastomer than a portion on the base side of the vehicle outer side wall and the vehicle inner side wall.   The automotive opening trim weather strip according to any one of claims 1 to 4, wherein the seal portion is a hollow seal portion having a hollow portion.   The automobile opening trim weather strip according to claim 5, wherein the hollow seal portion is formed with a bridge portion extending from the vehicle outer side wall and dividing the hollow portion into two.

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