JP2011189880A - Opening trim weather strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening trim weather strip for an automobile, requiring little force to close a door and ensuring seal performance. <P>SOLUTION: The opening trim weather strip 10 includes an attachment proximal portion 20 and a hollow seal portion 30. The hollow seal portion 30 includes a first side-portion seal wall 31 and a second side-portion seal wall 32. The second side-portion seal wall 32 is formed of: a second side-portion seal wall base portion 37 extended from an outer-cabin side sidewall 21 and formed of a solid material or a slightly foamed material; a second side-portion seal wall bent portion 38 integrally extended from the second side-portion seal wall base portion 37; and a second side-portion seal wall arcuate portion 39 arcuately extended from the second side-portion seal wall bent portion 38. The first side-portion seal wall 31 is formed projected toward the inside of the hollow seal portion 30. The second side-portion seal wall bent portion 38, the second side-portion seal wall arcuate portion 39, and the first side-portion seal wall 31 are formed of a sponge material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

  Conventionally, as shown in FIG. 3, the seal between the door of the automobile and the periphery of the vehicle body opening is formed by a glass run 40 attached to the inner channel 3 of the door frame 2 of the door, and the opening of the vehicle body opening periphery 6. An opening weather strip 50 attached in the vicinity and an opening trim weather strip 110 attached to the flange 7 at the periphery 6 of the vehicle body opening are formed.

  As shown in FIGS. 3 and 4, the opening trim weather strip 110 is formed by one extrusion molding and is attached to substantially the entire periphery of the vehicle body opening periphery 6 of the vehicle body. 2 or contact the outer periphery of the door panel and seal. As shown in FIG. 5, a flange 7 is provided at the periphery 6 of the opening of the vehicle body, and an opening trim weather strip 110 is attached to the flange 7. The flange 7 is fixed to the front end of the inner panel 8 and the outer panel 9 by welding. Has been formed.

  As shown in FIG. 5, the opening trim weather strip 110 has a hollow seal portion 130 and a mounting base portion (trim portion) 120 having a substantially U-shaped cross section, and is attached to the flange 7 by the mounting base portion (trim portion) 120. It is done. The trim portion 120 is formed in a substantially U-shaped cross section formed from the vehicle outer side wall 121, the vehicle inner side wall 122, and the bottom wall 123 (see, for example, Patent Document 1).

  As shown in FIG. 5, an outer side holding lip 124 and an inner side holding lip 125 are formed on the inner surfaces of the vehicle outer side wall 121 and the vehicle inner side wall 122 so as to grip the flange 7. ing. When the flange 7 is inserted into the trim portion 120, the leading ends of the vehicle outer side holding lip 124 and the vehicle inner side holding lip 125 are bent and pressed against the respective side surfaces of the flange 7 to hold the flange 7. 110 can be installed.

  The hollow seal portion 130 includes a first side seal wall 131 that constitutes a side wall on the base side of the flange 7 and a second side seal wall 132 that constitutes a side wall on the distal end side of the flange 7. The hollow seal portion 130 abuts on the door frame 2 when the door is closed, and seals between the door and the vehicle body opening peripheral edge 6, but is bent to the second side seal wall 132 in order to reduce the door closing force. A portion 133 is formed.

For this reason, as shown in FIG. 5, when the door frame 2 abuts against the hollow seal portion 130, the bent portion 133 can be bent so that the hollow seal portion 130 can be bent.
However, although the opening trim weather strip 110 is attached over the entire periphery of the vehicle body opening periphery 6, the direction in which the door abuts when the door is closed differs depending on the attachment position.

Since the hollow seal portion 130 is formed of sponge rubber, when the door closing direction is obliquely abutted from the first side seal wall 131 direction, the hollow seal portion 130 is pulled by the door frame 2 and the outer panel 9 It will fall in the direction. When the hollow seal portion 130 comes into contact with the outer panel 9, the door closing force increases and the sealing performance between the hollow seal portion 130 and the door frame 2 decreases.
For this reason, it is required to provide a large gap between the outer panel 9 and the hollow seal portion 130, but it may be difficult to provide a sufficient structural space for the vehicle body 1.

  Therefore, as shown in FIG. 6, in the opening trim weather strip 210 having the trim part 220 and the hollow seal part 230, the first side seal wall 231 and the second side seal wall 232 of the hollow seal part 230 are connected. The first side seal wall 231 is provided with a first bending point 234, and the second side seal wall 232 is provided. Some have a second bending point 235 and a third bending point 236 (see, for example, Patent Document 2).

  However, in this case, the shape becomes complicated, and it takes time and effort to manufacture, and since the second side seal wall 232 is folded and overlapped, the second side portion is caused by the variation in the gap between the door frame 2 and the vehicle body 1. The door closing force may increase due to the overlap of the seal walls 232.

  Further, as shown in FIG. 7, in the opening trim weather strip 310 having the trim portion 320 and the hollow seal portion 330, the first side seal wall 331 of the hollow seal portion 330 is provided and the first side seal wall 331 is provided. A first bending point 334 is provided on the second side seal wall 232. Some have a second bending point 335 (see, for example, Patent Document 3).

  In this case, when the door frame 2 comes into contact with the hollow seal portion 330, the first bending point 334 is bent in the direction of the outer panel 9, so that the outer panel 9 and the hollow seal portion are as described above. A space is required between 330. When the space is small, the first bending point 334 comes into contact with the outer panel 9 and the door closing force increases.

JP 59-70224 A JP 2005-119350 A JP 2010-30445 A

  Therefore, an object of the present invention is to provide an automobile opening trim weather strip that has a small door closing force and can secure a sealing property.

In order to solve the above-mentioned problem, the present invention of claim 1 is an opening trim weather strip that is attached to a flange formed at the periphery of a vehicle body opening of a vehicle and seals between the vehicle door and the periphery of the vehicle body opening.
The opening trim weather strip is provided integrally with the mounting base attached to the flange and the mounting base, and abuts on the outer periphery of the door frame or door panel of the automobile door to seal between the automobile door and the periphery of the vehicle body opening. Having a hollow seal,
The mounting base is formed of a solid material or a fine foam material, and is formed in a substantially U-shaped cross section including a vehicle outer side wall, a vehicle inner side wall, and a bottom wall,
The hollow seal portion includes a first side seal wall that extends from the vehicle outer side wall and forms a side wall on the root side of the flange, a side wall that extends from the vehicle outer side wall and that extends from the vehicle outer side wall, and the door frame. And a second side seal wall having a tip connected to the tip of the first side seal wall and forming a hollow portion.
The second side seal wall extends integrally from the second side seal wall root and the second side seal wall root extending from the vehicle outer side wall and formed of a solid material or a fine foam material. A second side seal wall bent portion and a second side seal wall arc portion extending in an arc shape from the second side seal wall bent portion,
The first side seal wall is formed to protrude in the inner direction of the hollow seal portion,
The opening trim trim strip is characterized in that the second side seal wall bent portion, the second side seal wall arc portion, and the first side seal wall are formed of a sponge material.

According to the first aspect of the present invention, a mounting base portion that is attached to the flange and a mounting base portion that are integrally provided, abuts against the outer periphery of the door frame or door panel of the automobile door, and seals between the automobile door and the periphery of the vehicle body opening. A hollow seal portion. For this reason, when the attachment base portion is attached to the flange, the seal portion can be brought into contact with the outer periphery of the door frame or the door panel to seal between the outer periphery of the door frame or the door panel and the periphery of the vehicle body opening.
The attachment base portion is formed of a solid material or a fine foam material, and has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a bottom wall. For this reason, the flange can be firmly held between the vehicle outer side wall and the vehicle inner side wall.

  The hollow seal portion includes a first side seal wall that extends from the vehicle outer side wall and constitutes the side wall on the root side of the flange, and a side wall that extends from the vehicle outer side wall and extends to the front end side of the flange. And a second side seal wall having a tip connected to the tip of the first side seal wall to form a hollow portion. For this reason, when the door is closed, the hollow seal portion is bent, and the portion of the second side seal wall can contact the outer periphery of the door frame or the door panel from the connecting portion at the tip of the second side seal wall to seal the door frame. .

  The second side seal wall extends integrally from the second side seal wall root and the second side seal wall root extending from the vehicle outer side wall and formed of a solid material or a fine foam material. A second side seal wall bent portion and a second side seal wall arc portion extending in an arc shape from the second side seal wall bent portion. For this reason, when the outer periphery of the door frame or the door panel comes into contact with the hollow seal portion, the rigidity of the second side seal wall base portion formed of the solid material or the fine foam material is large, and the second side seal wall collapses. It is difficult to secure a space inside the hollow seal portion, the hollow seal portion is not greatly collapsed to the outer panel side, and a first side seal wall to be described later is bent to secure a space to enter the hollow interior. Can do.

Furthermore, when the outer periphery of the door frame or the door panel comes into contact with the hollow seal portion, the second side seal wall bent portion is bent, so that the bending load of the hollow seal portion can be reduced and the door closing force is reduced. be able to.
Further, the bulged portion of the door frame or the outer periphery of the door panel abuts on the arc portion of the second side seal wall extending in an arc shape, and the hollow seal portion can be smoothly bent while maintaining the abutment. In addition to being able to seal reliably.

  Since the first side seal wall is formed so as to protrude in the interior direction of the hollow seal portion, when the outer periphery of the door frame or the door panel comes into contact with the hollow seal portion, the first side seal wall is the interior of the hollow seal portion. Can bend to project in the direction. Therefore, even if the hollow seal portion is attached close to the outer panel, it does not come into contact with the outer panel and the door closing force is not increased.

  The second side seal wall bent portion, the second side seal wall arc portion, and the first side seal wall are formed of sponge material, so that the outer periphery of the door frame or door panel is flexibly contacted with the hollow seal portion. While being able to bend, the weight of an opening trim weatherstrip can be reduced and it can contribute to weight reduction of a vehicle.

  The present invention of claim 2 is the opening trim weather strip in which the second side seal wall arc portion is formed to increase in thickness as the distance from the second side seal wall bent portion increases.

  In the second aspect of the present invention, since the second side seal wall arc portion is formed thicker as the distance from the second side seal wall bent portion increases, the second side seal wall is formed when the door frame abuts. The bent part can bend reliably and bend or abnormally deform when the second side seal wall arc part comes into contact with the outer periphery of the door frame or door panel or is attached to the corner part of the vehicle body. The second side seal wall arc portion can be sealed with a large area, and the sealing performance is excellent.

  The present invention of claim 3 is the opening trim weather strip in which the second side seal wall bent portion is formed to be the thinnest in the second side seal wall or bent into a substantially square shape. It is.

  According to the third aspect of the present invention, the second side seal wall bent portion is formed to be the thinnest in the second side seal wall or to be bent in a substantially square shape, so that the door frame or the door panel is formed. The second side seal wall bent portion can be reliably bent when the outer periphery of the door contacts, and the second side seal wall arc portion reliably contacts the outer periphery of the door frame or door panel for sealing. Can do.

  According to a fourth aspect of the present invention, the second side seal wall base is slightly extended in the vertical direction from the vehicle outer side wall, and is further bent and formed into a step shape in the extending direction of the vehicle outer side wall. The strip.

In the present invention of claim 4, since the second side seal wall base portion is slightly extended in the vertical direction from the vehicle outer side wall, and further bent and formed in a step shape in the extending direction of the vehicle outer side wall, the hollow seal The space inside the portion can be increased, and even if the first side seal wall is bent, the door closing force can be reduced without coming into contact with the inner surface of the second side seal wall.
Even when attached to the corner part, even when the door is closed, there is little deformation of the base part of the second side seal wall, and abnormal deformation of the hollow seal part is prevented, and the second side seal wall is securely attached to the door frame. It can be brought into contact with the outer periphery of the bulging portion or door panel.

  According to the present invention of claim 5, the first side seal wall is formed to be curved in an arc shape in the inner direction of the hollow seal portion, or is formed to be bent in a substantially square shape. It is a strip.

  In the present invention of claim 5, since the first side seal wall is formed to be curved in an arc shape in the inner direction of the hollow seal portion, or formed to be bent in a substantially square shape, the door frame or When the outer periphery of the door panel comes into contact with the hollow seal portion, the first side seal wall can be reliably bent near the center that is curved in an arc or bent into a substantially square shape, reducing the door closing force. can do.

  According to the sixth aspect of the present invention, the first side seal wall and the second side seal wall are extended in the extending direction of the second side seal wall arc portion from the front end of the hollow seal portion that is continuous with the respective front ends of the first side seal wall and the second side seal wall. An opening trim weatherstrip formed with a contact lip.

  In this invention of Claim 6, it is extended from the front-end | tip of the hollow seal part which follows each front-end | tip of a 1st side part seal wall and a 2nd side part seal wall in the extension direction of a 2nd side part seal wall circular arc part. An abutting lip was formed. For this reason, when the door is closed, the first side seal wall and the second side seal wall are bent, and the second side seal wall and the contact lip are surely brought into contact with the outer periphery of the door frame or the door panel. It is possible to seal in a wide area of the part seal wall and the contact lip, and the sealing performance is excellent.

  The present invention of claim 7 is the opening trim weather strip in which the first side seal wall is formed thinner than the arc portion of the second side seal wall.

  In the present invention of claim 7, since the first side seal wall is formed thinner than the arc portion of the second side seal wall, the first side seal wall is reliably bent when the door is closed, A space in which the first side seal wall bends can be secured by the seal wall root and the second side seal wall arcuate portion, and the door closing force can be reduced.

  According to the eighth aspect of the present invention, the portion of the first side seal wall that is curved in the inner direction of the hollow seal portion and located in the innermost portion is substantially the second side seal wall bent portion and the vehicle outer side wall. It is the opening trim weather strip provided in the parallel position.

  According to the present invention of claim 8, the portion of the first side seal wall that is curved in the inner direction of the hollow seal portion and is located at the innermost portion is substantially the second side seal wall bent portion and the vehicle outer side wall. It was provided in a parallel position. For this reason, when the first side seal wall is bent, the bent tip of the first side seal wall can enter the deepest part of the hollow seal portion, thereby reducing the door closing force. it can.

  Since the first side seal wall is curved in the inner direction of the hollow seal portion, the first side seal wall protrudes in the inner direction of the hollow seal portion when the door frame abuts the hollow seal portion. Can be bent. Therefore, even if the hollow seal portion is attached close to the outer panel, it does not come into contact with the outer panel and the door closing force is not increased.

Since the second side seal wall has a second side seal wall base portion formed of a solid material or a fine foam material, its rigidity is large, ensuring a space inside the hollow seal portion, and the first side portion It is possible to secure a space where the seal wall bends and enters the hollow interior.
Furthermore, since the second side seal wall bent portion is bent when the door frame comes into contact with the hollow seal portion, the bending load of the hollow seal portion can be reduced, and the door closing force can be reduced.

It is sectional drawing of the state which attached the opening trim weather strip which is embodiment of this invention to the flange. It is sectional drawing which attaches the opening trim weather strip which is embodiment of this invention to a flange, and shows the relationship between the door frame at the time of a door closing, and an opening trim weather strip. It is the perspective view seen from back in the state where the door of the car was opened. It is a front view of the door opening trim weather strip which is an embodiment of the invention. It is sectional drawing in the state which attached the conventional door opening trim weather strip to the opening part periphery of a motor vehicle. It is sectional drawing in the state which attached the other conventional door opening trim weather strip to the opening part periphery of a motor vehicle. It is sectional drawing in the state which attached the other conventional door opening trim weather strip to the opening part periphery of a motor vehicle.

An embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 3, the vehicle body 1 of the automobile has a door opening, and the door opening is opened and closed by a door that is an opening / closing member. The periphery of the door opening forms a vehicle body opening periphery 6, and a flange 7 (FIG. 1, FIG. 2) with the outer panel 9 and the inner panel 8 constituting the vehicle body 1 welded to the vehicle body opening periphery 6. See). In the flange 7, the number of panels to be welded changes from about 2 to about 8 depending on the position of the vehicle body opening peripheral edge 6 of the vehicle body 1.

  As shown in FIG. 2, the seal between the door and the vehicle body opening peripheral edge 6 is attached to the door channel 3 and includes a glass run 40 that seals between the door glass 5 and the inner periphery of the door frame 2. The opening weather strip 50 that seals the opening side of the vehicle body opening peripheral edge 6 and the opening trim weather strip 10 that is attached to the flange 7 and seals the vehicle interior side from the opening weather strip 50 are performed.

The present invention relates to the opening trim weather strip 10. The opening trim weather strip 10 is linearly formed by extrusion. As shown in FIG. 4, the straight opening trim weather strip 10 is attached to the flange 7 so as to form an annular shape along the shape of the periphery 6 of the vehicle body opening. The mounting is performed sequentially from one end of the opening trim weather strip 10 to the flange 7, and when the mounting is completed, the other end is joined to the one end. This terminal may be formed into an annular shape by being joined by the connecting portion 11.
Alternatively, the ends of the opening trim weather strip 10 may be bonded to each other with an adhesive before being attached to form an annular shape.

As shown in FIGS. 1 and 2, the opening trim weather strip 10 is integrally formed from a trim portion (mounting base portion) 20 having a substantially U-shaped cross section, which is attached to the flange 7, and the trim portion 20. 2 has a hollow hollow seal portion 30 that is in contact with the two bulging portions 2a and seals between the door and the periphery 6 of the vehicle body opening. An embodiment of the present invention will be described by taking an opening trim weather strip 10 abutting against the door frame 2 as an example.
In the present invention, the hollow seal portion 30 is integrally provided on the outer surface of the outer side wall 21 of the trim portion 20. The trim part 20 will be described later.

  A hollow seal portion 30 is integrally formed on the outer surface of the vehicle outer side wall 21 of the trim portion 20. The hollow seal portion 30 includes a first side seal wall 31, a second side seal wall 32, and a contact lip 35. The contact lip 35 can be omitted. The first side seal wall 31 is formed such that one end extends from the base side outer surface of the flange 7 of the outer side wall 21 of the trim part 20 and the other end is connected to one end of the second side seal wall 32. A side wall of the hollow seal portion 30 is formed.

  The first side seal wall 31 is formed of a sponge material and is formed so as to protrude in the inner direction of the hollow seal portion 30. In the present embodiment, the first side seal wall central portion 36 is bent in an arc shape so that the first side seal wall central portion 36 is located at the innermost position. May be formed. Since the projection is formed in the inner direction, when the door frame 2 abuts against the hollow seal portion 30, the first side seal wall 31 is inside the hollow seal portion 30 in the opposite direction to the outer panel 9. Can bend to project in the direction. Therefore, even if the hollow seal 30 part is attached close to the outer panel 9, the first side seal wall 31 does not contact the outer panel 9 and the door closing force is not increased.

  In the present embodiment, the first side seal wall 31 is formed with the same thickness over substantially the entire length, and is thinner than the second side seal wall arc portion 39. For this reason, when the door is closed, the first side seal wall central portion 36 is reliably bent, and the first side seal wall 31 can be bent in the space secured by the second side seal wall 32. Since the side seal wall central portion 36 does not contact the second side seal wall 32, the door closing force can be reduced.

Next, the second side seal wall 32 will be described.
The second side seal wall 32 includes a second side seal wall root portion 37 extending from the vehicle outer side wall 21 of the trim portion 20 and formed of a solid material or a fine foam material, and a second side seal wall root thereof. A second side seal wall bent portion 38 integrally formed from the portion 37 and formed of a sponge material; and a second side seal wall bent portion 38 extending in an arc shape from the second side seal wall bent portion 38 and formed of a sponge material. A side seal wall arc 39 is formed. The tip of the second side seal wall arc portion 39 is connected to the tip of the first side seal wall 31 to form a hollow portion of the hollow seal portion 30.

  When the door frame 2 comes into contact with the hollow seal portion 30, the second side seal wall root portion 37 formed of a solid material or a fine foam material has a high rigidity and is difficult to be deformed. Therefore, even if the door frame 2 abuts in an oblique direction and pulls the hollow seal portion 30 depending on the attachment position to the vehicle body opening peripheral edge 6, the second side seal wall 32 is unlikely to fall down.

  Thereby, the hollow seal part 30 is largely collapsed to the outer panel 9 side, and the hollow seal part 30 is not deformed abnormally, and the internal space can be secured. Therefore, even if the first side seal wall 31 is bent due to the contact of the door frame 2, a space for the first side seal wall 31 to bend and enter the hollow seal portion 30 can be secured.

  In the present embodiment, the second side seal wall base portion 37 extends slightly from the vehicle outer side wall 21 in the vertical direction, and further bends in a stepped manner in the extending direction (parallel direction) of the vehicle outer side wall 21. Is formed. Therefore, the second side seal wall bent part 38 and the second side seal wall arc part 39 can be extended from the vicinity of the bottom wall 23 of the trim part 20 described later, and the space inside the hollow seal part 30 Can be increased.

For this reason, even if the first side seal wall 31 is bent, it does not contact the inner surface of the second side seal wall 32 and prevents an increase in door closing force due to the contact of the first side seal wall 31. The door closing force can be lowered.
Further, when the opening trim weather strip 10 is attached to the corner portion of the vehicle body opening peripheral edge 6, even when the door is closed, the base portion of the second side seal wall 32 is hardly deformed, and the hollow seal portion 30 is abnormally deformed. Thus, the second side seal wall 32 can be reliably brought into contact with the bulging portion 2a of the door frame 2.

  A second side seal wall bent portion 38 is formed of a sponge material integrally and continuously with the second side seal wall root portion 37. The second side seal wall bent portion 38 is formed to be the thinnest in the second side seal wall 32 or bent into a substantially square shape, and the door frame 2 contacts the hollow seal portion 30. It is formed so that it can be bent easily. In this embodiment, it is formed thin.

  Since the second side seal wall bent portion 38 bends when the door frame 2 abuts against the hollow seal portion 30, the bending load of the hollow seal portion 30 can be reduced, and the door closing force can be reduced. In addition, the second side seal wall arc portion 39 remains in an arc shape and can be reliably brought into contact with the door frame 2 without being deformed abnormally. Further, the second side seal wall bent portion 38 corresponds to the deepest position of the hollow seal portion 30 with respect to the first side seal wall 31.

  In the present embodiment, the first side seal wall central portion 36, which is the most convexly located portion inside the hollow seal portion of the second side seal wall bent portion 38 and the first side seal wall 31. Are provided at the same height position substantially parallel to the vehicle outer side wall 21. For this reason, when the 1st side part seal wall 31 bends, the bent tip of the 1st side part seal wall 31 can approach to the deepest part of the hollow seal part 30, and reduces a door closing force. can do.

  A second side seal wall arcuate portion 39 is integrally formed continuously with the second side seal wall bent portion 38. The second side seal wall arcuate portion 39 is formed such that its thickness gradually increases as the distance from the second side seal wall bent portion 38 increases. Therefore, when the door frame 2 comes into contact with the hollow seal portion 30, the second side seal wall bent portion 38 is reliably bent and the second side seal wall arc portion 39 comes into contact with the door frame 2. In addition, it does not buckle or deform abnormally when attached to the corner of the vehicle body. In addition, the second side seal wall arc portion 39 can be sealed by coming into contact with the door frame 2 with a wide area of a gentle arc shape, and is excellent in sealing performance.

  The thickness of the portion of the second side seal wall arc 39 that contacts the door frame 2 is thicker than the other portions of the first side seal wall 31 and the second side seal wall 32. For this reason, when the door is closed, the second side seal wall arcuate portion 39 can be brought into contact with the bulging portion 2a of the door frame 2 without being deformed when it comes into contact with the bulging portion 2a of the door frame 2. Sealability can be improved.

  The first side seal wall 31 and the second side seal wall 32 are in contact with the respective ends of the hollow seal portion 30 that is continuous with the tips of the second side seal wall arc 32 and the extending direction of the second side seal wall arc portion 39 (the direction of the outer panel 9). A contact lip 35 can be formed. In this case, when the door is closed, the hollow seal portion 30 comes into contact with the door frame 2 and the first side seal wall 31 and the second side seal wall 32 are bent to contact the second side seal wall arc portion 39. The contact lip 35 reliably contacts the bulging portion 2a of the door frame 2. Therefore, it can seal in the wide area of the 2nd side part seal wall 32 and the contact lip 35, and is excellent in sealing performance.

  Since the first side seal wall 31, the second side seal wall bent portion 38, the second side seal wall arc portion 39, and the contact lip 35 are formed of sponge material, the hollow seal portion 30 is the door frame. When it abuts 2, it can flexibly abut against the bulging portion 2 a of the door frame 2 to ensure sealing performance. Since the second side seal wall base portion 37 is formed of a solid material or a fine foam material, even when the door frame 2 abuts and the hollow seal portion 30 is bent when the door is closed, the hollow seal portion 30 is It is also possible to prevent crushing deformation.

Next, the configuration of the trim part 20 will be described.
The trim portion 20 includes a vehicle outer side wall 21, a vehicle inner side wall 22, and a bottom wall 23, and is formed in a substantially U-shaped cross section. An insert member 27 is embedded in the trim portion 20 in order to increase the strength for gripping the flange 7. The insert member 27 is formed of a sheet metal or a hard resin, and is formed in a ladder shape, a fish bone shape, a zigzag shape, or the like in order to ensure flexibility when attached to a corner portion. The trim portion 20 is formed of a solid material or a fine foam material.

  A vehicle outer side holding lip 24 and a vehicle inner side holding lip 25 that extend in the longitudinal direction and sandwich the flange 7 are formed on the inner surfaces of the vehicle outer side wall 21 and the vehicle inner side wall 22. For this reason, each front-end | tip of the vehicle outer side holding lip 24 and the vehicle inner side holding lip 25 is contact | abutted to the side surface of the both sides of the flange 7, respectively, and the flange 7 is hold | maintained firmly. For this reason, the trim part 20 does not fall down, and the hollow seal part 30 can contact | abut to the door frame 2 reliably, and can ensure sealing performance.

In the present embodiment, the vehicle outer side holding lip 24 is formed to be three shorter after extrusion molding, and the vehicle inner side holding lip 25 is formed to be one long and projecting in an oblique direction inside a substantially U-shaped cross section. For this reason, the flange 7 is positioned on the inner surface side of the vehicle outer side wall 21 and is stably held by the three vehicle outer side holding lips 24. Furthermore, the flange 7 can be stably held by pressing the flange 7 toward the vehicle outer side wall 21 by the vehicle inner side holding lip 25. In addition, it can reliably follow the unevenness and bending of the flange 7 and abut against the flange 7 to ensure sealing performance.
A cover lip 28 extends from the continuous portion of the vehicle interior side wall 22 and the bottom wall 23 in the vehicle interior direction and covers the tip of the garnish 60.

Next, a method for manufacturing the opening trim weather strip 10 will be described.
The opening trim weather strip 10 is formed by extrusion molding, and solid rubber or fine foam material constituting the trim portion 20 and sponge rubber constituting the insert member 27 and the hollow seal portion 30 are integrally extruded by an extruder. be able to.
Thereafter, vulcanization is carried out by a normal method, and then cut into a predetermined length for one piece.

2 Door frame 6 Door opening periphery 7 Flange 10 Door opening trim weather strip 20 Trim (mounting base)
30 hollow seal portion 31 first side seal wall 32 second side seal wall 35 abutting lip 37 second side seal wall root portion 38 second side seal wall bent portion 39 second side seal wall arc portion

Claims (8)

In the opening trim weather strip that is attached to the flange formed at the periphery of the vehicle body opening of the automobile and seals between the automobile door and the periphery of the vehicle body opening,
The opening trim weatherstrip is attached to the flange, and is provided integrally with the mounting base. The opening trim weatherstrip is in contact with the outer periphery of the door frame or door panel of the automobile door, and the automobile door and the vehicle body opening periphery. Having a hollow seal portion for sealing between
The mounting base is formed of a solid material or a fine foam material, and is formed in a substantially U-shaped cross section including a vehicle outer side wall, a vehicle inner side wall, and a bottom wall,
The hollow seal portion has one end extending from the vehicle outer side wall and constituting the side wall on the root side of the flange, and one end extending from the vehicle outer side wall and extending from the front end side of the flange. A second side seal wall having a side wall and a tip connected to the tip of the first side seal wall to form a hollow portion;
The second side seal wall extends integrally from the second side seal wall root and extends from the vehicle outer side wall and is formed of a solid material. Formed from a second side seal wall bend and a second side seal wall arc extending from the second side seal wall bend in an arc shape;
The first side seal wall is formed to protrude in the inner direction of the hollow seal portion,
An opening trim weather strip, wherein the second side seal wall bent portion, the second side seal wall arc portion, and the first side seal wall are formed of a sponge material.   2. The opening trim weather strip according to claim 1, wherein the second side seal wall arc portion is formed to increase in thickness as the second side seal wall arc portion moves away from the second side seal wall bent portion.   3. The opening according to claim 1, wherein the second side seal wall bent portion is formed to be thinnest in the second side seal wall, or formed to be bent in a substantially square shape. Trim weather strip.   4. The method according to claim 1, wherein the second side seal wall root portion is slightly extended in a vertical direction from the vehicle outer side wall, and further bent and formed in a stepped shape in the extending direction of the vehicle outer side wall. An opening trim weather strip according to claim 1.   5. The first side seal wall according to claim 1, wherein the first side seal wall is formed to be curved in an arc shape in the inner direction of the hollow seal portion, or formed to be bent in a substantially square shape. The opening trim weather strip according to claim 1.   A contact lip extending in the extending direction of the arc portion of the second side seal wall is formed from the tip of the hollow seal portion continuous with the tips of the first side seal wall and the second side seal wall. The opening trim weather strip according to any one of claims 1 to 5.   The opening trim weather strip according to any one of claims 1 to 6, wherein the first side seal wall is formed thinner than the second side seal wall arc portion. The innermost portion of the first side seal wall that is curved in the inner direction of the hollow seal portion is provided at a position substantially parallel to the second side seal wall bent portion and the vehicle outer side wall. The opening trim weather strip according to any one of claims 1 to 7.

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