JP2007008311A - Weather strip for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather strip for an automobile which can be easily mounted in the predetermined position certainly, capable of precluding certainly noise emission from a flange. <P>SOLUTION: The weather strip 10 has a mounting base part 20 attached to the flange installed on either of a body opening opening/closing member and the periphery of a body opening and a seal part 30 installed rigidly on the mounting base part for sealing the gap between the body opening opening/closing member and the body opening periphery upon abutting to the other of the body opening opening/closing member and the body opening periphery. The mounting base part 20 has an approximately L-section formed at least from a bottom wall 23 and an extra-vehicle side wall 21 and is structured so that the intra-vehicle side face of the extra-vehicle side wall and the flange are adhered to each other by a double-side adhesive tape 25, and a sliding member 27 is installed over the area from the side end of the adhesive tape to the inner surface of the bottom wall so as to facilitate sliding of the flange forefront. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automotive weather strip that seals between a vehicle body opening / closing member that opens and closes a vehicle body opening, such as an automobile door, luggage, and sliding roof, and the periphery of the vehicle body opening.

Hereinafter, as shown in FIG. 6, the present invention will be described by taking as an example an opening trim weather strip 10 for sealing an automobile door 2 and a peripheral edge 6 of a vehicle body opening.
Conventionally, as shown in FIG. 8, the seal between the automobile door 2 and the vehicle body opening peripheral edge 6 includes a door weather strip 160 attached to an outer retainer 4 such as a door frame of the door 2, and a door frame. The glass run 150 is attached to the inner peripheral channel 3 and the opening trim weather strip 110 is attached to the flange 7 at the periphery 6 of the vehicle body opening.
The flange 7 is formed by an outer panel 6a that defines the periphery of the vehicle body opening, an inner panel 8 on the inner side of the vehicle, and the like.

  The glass run 150 accommodates the end portion of the door glass 5 in a substantially U-shaped cross section including the vehicle outer side wall 151, the bottom wall 152, and the vehicle outer side wall 153, and the end portions of the glass run 150 are the vehicle outer side wall 151 and the vehicle outer side wall 153. It is sealed by a vehicle outer side seal lip 154 and a vehicle inner side holding lip 155 extending from the front end of the vehicle.

  The door weather strip 160 attached to the outer periphery of the door 2 includes an attachment base portion 161 and a hollow seal portion 164 and a seal lip portion 166 integrally formed on the upper portion thereof. The mounting base 161 is fitted into a retainer 4 provided on the outer periphery of the door frame and fixed to the door frame. When the door 2 is closed, the seal lip 166 abuts on the outermost side edge of the vehicle body opening peripheral edge (outer panel 6a) 6, and between the front end of the door 2 and the vehicle outer opening peripheral edge 6 on the vehicle outer side end. Seal the gap. At that time, the hollow seal portion 164 contacts the bulging portion inside the vehicle rather than the portion where the seal lip portion 166 of the vehicle body opening periphery 6 contacts, and seals between the door 2 and the vehicle body opening periphery 6. ing.

  An opening trim weather strip 110 attached to the flange 7 is provided in the opening of the vehicle body, and the door 2 and the vehicle body opening are located further inside the vehicle than the portion where the door weather strip 160 seals the periphery 6 of the vehicle body opening. The space between the peripheral edges 6 is sealed. The opening trim weather strip 110 is attached to the flange 7 by an attachment base 120 having a substantially U-shaped cross section, and the hollow seal portion 130 contacts and swells the bulging portion 2a of the door frame. In order to grip the flange 7, the mounting base 120 is embedded with a core material 124 such as a metal insert, and has a flange holding lip therein.

  However, the opening trim weather strip 110 is often mounted on the entire periphery of the vehicle body opening periphery 6 that is the opening of the door of the vehicle body, and the flange 7 of the vehicle body opening periphery 6 has a thickness depending on the portion. Is different. That is, the flange 7 is formed by joining the front ends of the panels constituting the vehicle body, but the number of panels to be joined varies from about 2 to about 8 depending on the part, and the thickness is from 2 mm to 8 mm. Varies to the extent.

For this reason, when the mounting base 120 has a substantially U-shaped cross section in which a reinforcing metal insert for sandwiching the flange 7 is embedded as the core member 124, the insertion force increases depending on the part, or the gripping force of the flange 7. Sometimes became smaller.
In addition, the metal insert has increased the weight and has not been able to satisfy the demand for lighter vehicles.

Therefore, as shown in FIG. 9, the core material 124 such as a metal insert of the mounting base 120 is eliminated, the flexibility is increased, and the double-sided adhesive tape 125 is used to attach to the flange 7 (for example, , See Patent Document 1 and Patent Document 2.)
In this case, at the mounting base (trim portion) 120 of the opening trim weather strip 110, the double-sided adhesive tape 125 is attached to the inner surface of the vehicle outer side wall 122, and the flange 7 is inserted into the trim portion 120 and the vehicle of the flange 7 is mounted. A double-sided adhesive tape 125 is pressure-bonded to the outer side surface.

However, when the opening trim weather strip 110 is bonded to the flange 7 with the double-sided adhesive tape 125, the protective tape of the double-sided adhesive tape 125 is peeled off and the flange 7 is inserted into the trim portion 120, The double-sided adhesive tape 125 is crimped. At this time, the tip of the flange 7 comes into contact with the double-sided adhesive tape 125 and the double-sided adhesive tape 125 is peeled off, or the flange 7 is not inserted all the way into the trim portion 120 and adheres to the double-sided adhesive tape 125 in the middle There was a case.
In addition, the double-sided adhesive tape 125 adhered to the vehicle outer side wall 122 is pressed against the side surface of the flange 7 with the tip of the flange 7 placed in the back of the trim portion 120. The positioning of the flange 7 and the double-sided adhesive tape 125 is performed. Therefore, the work of bonding the opening trim weather strip 110 to a predetermined position of the flange 7 is not efficient.

Also, as shown in FIG. 10, one of the side walls of the trim part 120 is formed short, a double-sided adhesive tape 125 is attached to the long side wall, the tip of the flange 7 is inserted into the back of the trim part 120, and the trim part There is also a type in which the opening trim weather strip 110 is mounted by rotating the 120 in the direction of the arrow to attach the double-sided adhesive tape 125 to the side surface of the flange 7 (see, for example, Patent Document 3).
In this case, when the tip of the flange 7 is inserted into the trim portion 120, the insertion is easy if the thickness of the flange 7 is thin. However, if the thickness of the flange 7 is thick or the thickness changes. In such a case, it is difficult to insert the trim part 120 into the interior of the trim part 120, and the front end of the flange 7 is caught in the trim part 120, making it difficult to smoothly rotate the trim part 120.

  Further, the flange 7 is formed by joining the outer panel 6a defining the periphery of the vehicle body opening and the tip of the inner panel 8 inside the vehicle by welding or the like. The inner panel 8 forms a cavity near the flange 7. Through this cavity, noise such as wind noise, tire noise and road surface reflected sound is transmitted over the entire periphery of the opening of the vehicle body. The flange 7 has a gap due to unevenness caused by spot welding and unevenness of the sheet metal at the end of the flange 7. The above noise leaks from this gap and is transmitted into the vehicle.

For this reason, as shown in FIG. 11, in order to improve the sealing performance between the flange 7 inside the trim portion 120, there is a type in which a sponge rubber 126 with which the tip of the flange 7 abuts is attached (for example, Patent Documents). 4).
In this case, the flange 7 is held by the holding lip 124 formed in the trim portion 120, and the front end of the flange 7 is in contact with the side surface of the sponge rubber 126, and positioning of the front end of the flange 7 is not possible. It was sufficient, and it was not always possible to obtain sufficient sealing performance with the tip of the flange 7.

In order to prevent noise leaking from the flange 7 and rainwater, dust, and noise entering the vehicle from the outside of the vehicle via the interior of the trim portion 120 of the opening trim weather strip 110, the interior of the trim portion 120 is highly viscous. Some also enclose a non-drying sealer 170 (see, for example, Patent Document 5).
However, since this sealer 170 is a highly viscous liquid, it takes time to handle it, and after assembling one end, after removing the trim part 120 from the flange 7 and reassembling, the sealer 170 is attached to the outer surface of the flange 7 or the trim part 120. 170 adhered and it was difficult to reassemble.
JP 2001-151035 A JP 2002-137695 A Japanese Patent No. 3180493 Japanese Unexamined Patent Publication No. 2000-21903 Japanese Utility Model Publication No. 54-31622

  Therefore, an object of the present invention is to provide an automotive weather strip that is easy to mount and can be reliably mounted at a predetermined position and can reliably prevent noise from the flange.

In order to solve the above problems, the present invention of claim 1 is a weather strip for sealing between a vehicle body opening / closing member of an automobile and a periphery of the vehicle body opening of the automobile.
The weather strip includes a mounting base that is attached to a flange provided on either the vehicle body opening / closing member or the periphery of the vehicle opening, and a body opening that is provided integrally with the mounting base and that is the other member. A seal portion that abuts the peripheral edge of the vehicle body or the vehicle body opening / closing member and seals between the vehicle body opening / closing member and the vehicle body opening periphery;
The mounting base has a substantially L-shaped cross section formed from at least the bottom wall and the vehicle outer side wall, and a double-sided adhesive tape is attached to the vehicle inner side surface of the vehicle outer side wall, and slides from the side edge of the double-sided adhesive tape to the inner surface of the bottom wall. It is the weather strip for motor vehicles provided with the property member.

  In the first aspect of the present invention, the weather strip is integrally attached to the mounting base that is attached to the flange at the leading end of either the vehicle body opening / closing member of the automobile or the periphery of the vehicle opening. A seal portion is provided that contacts the periphery of the opening or the opening / closing member of the vehicle body and seals between the opening / closing member of the vehicle opening and the periphery of the opening of the vehicle. For this reason, when the attachment base is attached to the outer periphery of the door frame or the periphery of the vehicle body opening, the seal portion comes into contact with the periphery of the vehicle body opening or the vehicle body opening / closing member when the vehicle body opening / closing member is closed. And the periphery of the opening of the vehicle body can be sealed.

Since the mounting base portion has a substantially L shape formed from at least the bottom wall and the vehicle outer side wall, the side surface of the flange is brought into close contact with the vehicle outer side wall even if the thickness of the flange changes, and the flange is formed by the bottom wall. The tip can be securely held and sealed. By bringing the front end of the flange into contact with the bottom wall, the vehicle outer side wall can be attached at a predetermined position.
In addition, since the double-sided adhesive tape is attached to the inner side of the vehicle's outer side wall, the mounting base can be attached to the flange regardless of the thickness of the flange, and the area for attaching the double-sided adhesive tape is large and strong. The mounting base can be adhered to

  Since the slidable member is provided from the side of the double-sided adhesive tape attached to the outer side wall of the vehicle to the inner surface of the bottom wall, when the flange is attached to the mounting base, the end of the flange is brought into contact with the slidable member, and then Rotate the mounting base to bond the double-sided adhesive tape to the side of the flange. At that time, the flange tip can slide smoothly on the surface of the slidable member, so the flange tip is in place. The double-sided adhesive tape can be reliably pressed and bonded to the side surface of the flange.

The present invention of claim 2 is a weather strip for sealing between a vehicle body opening / closing member of an automobile and a periphery of the automobile body opening of the automobile,
The weather strip includes a mounting base that is attached to a flange provided on either the vehicle body opening / closing member or the periphery of the vehicle opening, and a body opening that is provided integrally with the mounting base and that is the other member. A seal portion that abuts the peripheral edge of the vehicle body or the vehicle body opening / closing member and seals between the vehicle body opening / closing member and the vehicle body opening periphery;
The mounting base has a substantially U-shaped cross section formed from the vehicle outer side wall, the vehicle inner side wall, and the bottom wall, forms a protrusion on the vehicle inner side surface of the vehicle outer side wall, and has both sides from the vicinity of the tip of the vehicle outer side wall to the vicinity of the protrusion. An automotive weather strip having an adhesive tape attached thereto and a slidable member provided from the vicinity of the protrusion to the inner surface of the bottom wall.

  According to the second aspect of the present invention, the weather strip is integrally attached to the mounting base that is attached to the flange at the front end of either the vehicle body opening / closing member of the automobile or the periphery of the vehicle opening. A seal portion is provided that contacts the periphery of the opening or the opening / closing member of the vehicle body and seals between the opening / closing member of the vehicle opening and the periphery of the opening of the vehicle. For this reason, when the attachment base is attached to the outer periphery of the door frame or the periphery of the vehicle body opening, the seal portion comes into contact with the periphery of the vehicle body opening or the vehicle body opening / closing member when the vehicle body opening / closing member is closed. And the periphery of the opening of the vehicle body can be sealed.

Since the mounting base has a substantially U-shaped cross section formed from the vehicle outer side wall, the vehicle inner side wall, and the bottom wall, the flange can be sandwiched between the vehicle outer side wall and the vehicle inner side wall, and the tip of the flange is the bottom wall. Can be held in. Further, by bringing the front end of the flange into contact with the bottom wall, the vehicle outer side wall can be attached at a predetermined position.
In addition, since the double-sided adhesive tape is attached to the vehicle inner side surface of the vehicle outer side wall, the vehicle outer side wall can be bonded to the flange regardless of the thickness of the flange, and the area for attaching the double-sided adhesive tape is large, The mounting base can be firmly bonded.

  A protrusion was formed on the vehicle inner side surface of the vehicle outer side wall, a double-sided adhesive tape was stuck from the vicinity of the tip of the vehicle outer side wall to the vicinity of the protrusion, and a slidable member was provided from the vicinity of the protrusion to the inner surface of the bottom wall. For this reason, positioning which sticks a double-sided adhesive tape by a protrusion can be performed, and a flange can be pasted up to a predetermined position. Also, when inserting the flange into the mounting base, the flange is inserted obliquely, and the tip of the flange is slid while contacting the slidable member provided from the vicinity of the protrusion to the inner surface of the bottom wall, Insert until it touches the bottom wall. Then, the mounting base is rotated, the side surface of the flange is brought into contact with the protrusion, the outer side wall is rotated about the protrusion as a fulcrum, and the double-sided adhesive tape is surely pressed and bonded to the side surface of the flange. Can do.

  According to the third aspect of the present invention, the protrusion is formed so as to protrude to the inside of the mounting base to the same height as the surface of the double-sided adhesive tape, and is brought into contact with the side surface of the flange, and the tip of the flange is brought into contact with the bottom wall A weather strip for automobiles.

  In the present invention of claim 3, since the protrusion is formed so as to protrude to the inside of the mounting base to the same height as the surface of the double-sided adhesive tape, the side edge is applied to the protrusion when the double-sided adhesive tape is stuck. In addition to positioning, the flange can be inserted obliquely without contacting the double-sided adhesive tape when the flange is inserted. Furthermore, when the mounting base is rotated with the protrusion as a fulcrum and the double-sided adhesive tape is brought into contact with the side surface of the flange and adhered to the side surface of the flange, the double-sided adhesive is used without causing the protrusion to get in the way. The tape can be pressed and bonded to the flange. Since the front end of the flange is brought into contact with the bottom wall, the double-sided adhesive tape can be bonded to a predetermined position on the side surface of the flange.

  The present invention of claim 4 is a weather strip for automobiles in which a vehicle inner side holding lip extends obliquely from the front end of the vehicle inner side wall toward the inside of the mounting base, and the vehicle inner side holding lip is brought into contact with the side surface of the flange. is there.

  In the present invention of claim 4, since the vehicle inner side holding lip extends obliquely from the front end of the vehicle inner side wall toward the inner side of the mounting base, and the vehicle inner side holding lip is brought into contact with the side surface of the flange, The side surface can be held and sealed, and the flange can be clamped together with the vehicle outer side wall. Furthermore, even if the thickness of the flange changes, the vehicle inner side holding lip can be bent in accordance with the change in the thickness, and the holding property and the sealing property can be ensured.

  The present invention of claim 5 is a weather strip for automobiles in which a caulking member is mounted on the inner surface of the bottom wall.

  In the present invention of claim 5, since the caulking member is mounted on the inner surface of the bottom wall, when the flange tip is embedded in the caulking member and the flange is made by spot welding or the like, the gap between the flange metal plates Noise and rainwater can be prevented from leaking. Further, dust and noise entering from the outside of the vehicle through the flange tip and the bottom wall can be sealed.

  According to a sixth aspect of the present invention, there is provided a weather strip for an automobile in which an inner surface of the bottom wall is formed with a stepped portion for locking the front end of the flange.

  In the present invention of claim 6, since the inner surface of the bottom wall is formed with a step portion for locking the tip of the flange, the tip of the flange is locked to the step portion, and the weather strip is attached to the flange. Can be determined reliably. In addition, since the position of the outer panel tip is determined by the stepped portion of the bottom wall, the mounting position of the weather strip mounting member on the flange is determined on the basis of the outer panel tip, so the mounting position does not vary. .

  According to a seventh aspect of the present invention, there is provided a weather strip for an automobile in which a continuous portion between the bottom wall and the bottom wall of the vehicle outer side wall is formed of a harder material than the vehicle outer side wall.

  In the present invention of claim 7, since the continuous part of the bottom wall and the bottom wall of the vehicle outer side wall is formed of a harder material than the other part of the vehicle outer side wall, it deforms even if the front end of the flange contacts. And the flange can be securely locked in place.

  According to the present invention of claim 8, the hard material of the bottom wall is formed of a hard rubber having a JIS hardness HA of 85 ° to 95 °, and the other part of the mounting base is formed of a soft rubber having a JIS hardness of HA of 60 ° to 80 °. Weather strip.

In the present invention of claim 8, since the hard material of the bottom wall is formed of a hard rubber having a JIS hardness HA of 85 ° to 95 °, the bottom wall has sufficient hardness with little deformation even when the end of the flange contacts the stepped portion. Yes.
The other part of the mounting base is made of soft rubber with a JIS hardness of 60 ° to 80 °, so it has both sufficient strength to hold the flange and sufficient flexibility to follow changes in the shape of the flange. Can do.

  According to the ninth aspect of the present invention, the vehicle body opening / closing member is a door, and the weather strip is an automotive weather strip which is an opening trim weather strip.

  In the present invention of claim 9, since the vehicle body opening / closing member is a door and the weatherstrip is an opening trim weatherstrip, it is possible to reliably seal between the periphery of the vehicle body opening and the door. The noise that enters the vehicle through the gap between the flanges can be wrapped by the mounting base and reliably prevented.

  According to a tenth aspect of the present invention, there is provided an automotive weather strip in which a portion other than the hard material of the mounting base is formed of a solid material or a fine foam material, and the seal portion is formed of a sponge material in a hollow shape.

In the present invention of claim 10, since the mounting base is formed of a solid material or a fine foam material having a JIS hardness HA of about 70 °, the shape is surely maintained when the mounting base is mounted on the flange at the periphery of the automobile door or the vehicle body opening. be able to.
Since the seal portion is formed of a hollow sponge material that abuts either the automobile door or the vehicle body opening peripheral edge, the seal portion can flexibly abut along the shape of the automobile door or the vehicle body opening peripheral edge, High nature.

  In the present invention of claim 11, the seal portion of the weather strip is formed of a sponge material of EPDM rubber or olefinic thermoplastic elastomer, and the portion other than the hard material of the mounting base is made of EPDM rubber or olefinic thermoplastic elastomer. It is formed of a solid material or a fine foam material, and the hard material portion of the bottom wall is an automotive weather strip formed of a solid material of EPDM rubber or olefin-based thermoplastic elastomer.

  In the present invention of claim 11, the seal portion of the weather strip is formed of a sponge material of EPDM rubber or olefinic thermoplastic elastomer, and the portion other than the hard material of the mounting base is made of EPDM rubber or olefinic thermoplastic elastomer. It is formed of a solid material or a fine foam material, and a hard material portion of the bottom wall is formed of a solid material of EPDM rubber or olefin-based thermoplastic elastomer. For this reason, simultaneous extrusion molding can be performed using the same type of material, and a product having good weather resistance can be obtained. Moreover, since it is the same olefin resin / rubber, it can be recycled without separation, and an easily recyclable product can be obtained.

In the present invention, since the double-sided adhesive tape is attached to the inside surface of the vehicle outer side wall, the mounting base can be attached to the flange regardless of the thickness of the flange, and the area for attaching the double-sided adhesive tape is large. The mounting base can be firmly adhered.
Since the slidable member is provided from the outer side wall of the vehicle to the inner surface of the bottom wall, the tip of the flange can slide on the surface of the slidable member when mounting the flange to the mounting base. A double-sided adhesive tape can be pressed and bonded to the side surface.
Moreover, when a protrusion is provided on the inner surface of the vehicle outer side wall, the double-sided adhesive tape can be positioned by the protrusion. In addition, when inserting the flange into the mounting base, the side surface of the flange is brought into contact with the projection, the outer side wall is rotated about the projection as a fulcrum, and the double-sided adhesive tape is securely pressed against the side surface of the flange. Can be glued.

  An embodiment of the present invention will be described by taking a door and an opening trim weather strip 10 as an example. In addition to the opening trim weather strip 10, the present invention provides a vehicle body opening for a vehicle such as a sliding roof weather strip, a luggage weather strip, and a back door weather strip, and a vehicle body opening for closing the opening. It can also be used for a weather strip having a seal portion and a mounting base portion used for an opening / closing member that seals between the peripheral edges.

The present invention will be described with reference to FIGS.
FIG. 1 is a cross-sectional view taken along line AA in FIG. 7 in a state in which an opening trim weather strip 10 according to a first embodiment of the present invention is mounted on the periphery 6 of the vehicle body opening in FIG. It is. FIG. 2 shows a portion taken along line AA in FIG. 7 in a state where the opening trim weather strip 10 according to the second embodiment of the present invention is similarly mounted on the peripheral edge 6 of the vehicle body opening in FIG. FIG.

FIG. 3 is a cross-sectional view showing a state where the opening trim weather strip 10 according to the first embodiment of the present invention is attached to the flange 7. 4 and 5 are cross-sectional views showing a state where the opening trim weather strip 10 according to the second embodiment of the present invention is mounted on the flange 7.
FIG. 6 is a perspective view showing a state in which the opening trim weather strip 10 is attached to the vehicle body opening peripheral edge 6 in a state where the door of the automobile is opened. FIG. 7 is a front view of the entire opening trim weather strip 10 attached to the periphery 6 of the vehicle body opening.

As shown in FIG. 6, 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 vehicle body opening peripheral edge 6, and the front end of the outer panel 6 a and the inner panel 8 constituting the vehicle body is welded to the vehicle body opening peripheral edge 6, and the flange 7 (see FIGS. 1 and 2). ). An opening trim weather strip 10 is attached to the flange 7 for sealing between the periphery 6 of the vehicle body opening and the door 2.
The thickness of the flange 7 varies depending on the part of the vehicle body because the number of panels to be welded changes from about 2 to about 5 by the part of the vehicle body opening peripheral edge 6 of the vehicle body 1.

The opening trim weather strip 10 is linearly formed by extrusion. As shown in FIG. 7, 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.
When it is formed in an annular shape, it is easy to mount.

Next, the sectional shape of the opening trim weather strip 10 according to the first embodiment will be described with reference to FIG.
The opening trim weather strip 10 is formed integrally with a trim portion (mounting base portion) 20 attached to the flange 7 and having a substantially L-shaped cross section, and the trim portion 20, and abuts against the door frame bulging portion 2 a of the door 2. Thus, a hollow seal portion (hollow seal portion) 30 for sealing between the door 2 and the vehicle body opening periphery 6 is provided.

  The trim portion 20 has a substantially L-shaped cross section including a vehicle outer side wall 21 and a bottom wall 23. Since the trim part 20 can respond flexibly to changes in the thickness of the flange 7, the bottom wall 23 has a predetermined width. The outer side wall 21 and the bottom wall 23 of the trim portion 20 are formed integrally and continuously, and an insert (core material) formed of a metal plate or a hard synthetic resin that reinforces the clamping force for clamping the flange 7 is embedded. It has not been. For this reason, the opening trim weather strip 10 can be reduced in weight.

The vehicle outer side wall 21 has a substantially flat cross section, and a double-sided adhesive tape 25 is attached to the vehicle inner side surface of the vehicle outer side wall 21. The opening trim weather strip 10 is bonded to the side surface of the flange 7 by a double-sided adhesive tape 25.
When the double-sided adhesive tape 25 is used, it only adheres to the outer surface of the flange 7, so the mounting method is the same even if the thickness of the flange 7 changes, and the adhesive force to the flange 7 is the same. Easy to install. Moreover, when the double-sided adhesive tape 25 is stuck to the vehicle outer side wall 21, the sticking area is large and the trim part 20 can be firmly adhered.
When the double-sided adhesive tape 25 is formed of a sponge material and is thickened, or the outer side wall 21 is formed of a sponge material, the adhesive tape is deformed and brought into close contact with irregularities such as spot marks formed on the side surfaces of the flange 7. be able to.

A protrusion 21 c may be provided at the lower part of the vehicle inner side surface of the vehicle outer side wall 21. By sticking the side edge of the double-sided adhesive tape 25 along the protrusion 21c, the double-sided adhesive tape 25 can be positioned. Thereby, the double-sided adhesive tape 25 can be adhered to a predetermined position of the flange 7.
A front end portion 21 b made of a sponge material is integrally formed at the front end of the vehicle outer side wall 21. When the vehicle outer side wall 21 is attached to the flange 7, the front end portion 21 b can contact the bent portion of the outer panel 6 a and seal between the outer panel 6 a and the opening trim weather strip 10.

The bottom wall 23 is formed in a substantially flat plate shape, and a step portion 23 b for locking the tip of the flange 7 is formed on the inner surface in the vicinity of the continuous portion with the vehicle outer side wall 21. The step portion 23b may be formed in a stepped shape having an L-shaped cross section on the bottom wall 23, or a step portion 23b may be formed by a side surface of a caulking sponge 26 described later and an inner surface of the bottom wall 23.
In the present embodiment, the tip of the flange 7 is in contact with the bottom portion of the step 23b, the side of the tip of the outer panel 6a is in contact with the side of the step 23b, and the tip of the outer panel 6a is Locked. As a result, the position where the opening trim weather strip 10 is attached to the flange 7 can be reliably determined.

  The bottom wall 23 and the lower portion of the vehicle outer side wall 21, particularly the stepped portion 23 b and the vicinity thereof, are formed of a material (hard material) having higher hardness and rigidity than other portions of the vehicle outer side wall 21. Since the vicinity of the step 23b of the bottom wall 23 and the vehicle outer side wall 21 is formed of a hard material, even if the front end of the flange 7 abuts and is pressed, the continuous portion of the bottom wall 23 and the vehicle outer side wall 21 is deformed. The position where the vehicle outer side wall 21 is bonded to the flange 7 can be determined, and the flange 7 can be reliably locked.

A caulking sponge 26, which is a caulking material, is attached to the inner surface of the bottom wall 23. Any material other than the sponge material may be used as long as it is flexible and can wrap and seal the tip of the flange 7. The caulking sponge 26 is adhered from the inner end of the bottom wall 23 to the vicinity of the step portion 23b so that the tip of the outer panel 6a, which is the longest tip of the flange 7, can abut on the step portion 23b. Is formed.
In the embodiment shown in FIG. 1, the bottom wall 23 formed of a hard material is the entire bottom wall 23 from the continuous portion with the vehicle outer side wall 21, but only the inner surface side of the bottom wall 23 is formed of a hard material. The outer surface side of the bottom wall 23 may be formed of the same material as the vehicle outer side wall 21.

The hard material of the bottom wall 23 can be formed from hard rubber having a JIS hardness HA of 85 ° to 95 °, for example. In the first embodiment, the hard material is a hard EPDM solid rubber having a JIS hardness HA of 90 °. For this reason, even if the front end of the flange 7 abuts on the step portion 23b, it has sufficient hardness and the step portion 23b is rarely deformed.
The other part of the vehicle outer side wall 21 can be formed of a soft rubber having a JIS hardness HA of 60 ° to 80 °. In the first embodiment, the other part is an EPDM solid rubber having a hard material JIS hardness HA of 70 °. For this reason, even if the strength sufficient to grip the flange 7 and the number of panels forming the flange 7 increase and the thickness of the flange 7 changes, the flange 7 has irregularities such as spot weld marks. Can also be flexible enough to follow.

A slidable member 27 was provided from the side end of the double-sided adhesive tape 25 attached to the vehicle outer side wall 21 to the inner surface of the bottom wall 23, that is, the inner surface portion from the protrusion 21 c to the side end of the caulking sponge 26. The slidable member 27 is made of a material having low frictional resistance. For example, it can be formed by adhesion of polyethylene tape or polypropylene tape, or application of urethane paint or silicone paint. With the slidable member 27, the tip of the flange 7 can be slid and positioned on the stepped portion 23b as described above.
In addition, the part from the side edge of the double-sided adhesive tape 25 attached to the vehicle outer side wall 21 to the inner surface of the bottom wall 23 is formed in a concave curved shape, and the above-mentioned slidable member 27 is provided on this concave curved surface. Therefore, the sliding of the front end of the flange 7 is further smoothed.

A hollow seal portion 30 is integrally provided on the outer surface of the vehicle outer side wall 21. The hollow seal portion 30 is formed on the outer surface of the vehicle outer side wall 21 with a hollow sponge material having a substantially elliptical cross-sectional shape. As the sponge material, sponge rubber, sponge thermoplastic elastomer or the like is used. For example, when the door is closed, the hollow seal portion 30 abuts against the bulging portion 2a of the door frame of the door 2 to seal between the door 2 and the peripheral edge 6 of the vehicle body opening. A garnish 40 may be attached to the bulging portion 2a of the door frame in order to improve the aesthetic appearance. In this case, the hollow seal portion 30 contacts the garnish 40. The hollow seal portion 30 can also be formed from the bottom wall 23 in accordance with the position of the mating member that abuts.
Instead of the hollow seal portion 30, a lip-shaped seal portion may be provided on the outer surface of the vehicle outer side wall 21 instead of the hollow shape.

When the opening trim weather strip 10 according to the first embodiment is mounted on the flange 7, first, as shown in FIG. 3, the trim portion 20 of the opening trim weather strip 10 is positioned obliquely with respect to the flange 7. Then, the tip of the flange 7 is brought into contact with the bottom wall 23. In this case, since the vehicle interior side wall 22 does not exist in the trim part 20, the flange 7 can be inserted obliquely with respect to the trim part 20.
At this time, the outermost outer panel 6a of the flange 7 is slightly longer than the other panels, so that its tip is brought into contact with the step 23b of the bottom wall 23. At that time, the side surface of the outer panel 6 a comes into contact with the protrusion 21 c of the vehicle outer side wall 21.

  Thereafter, when the hollow seal portion 40 is pressed by the roller 70, the trim portion 20 rotates in the direction of the arrow in FIG. 3, and the double-sided adhesive tape 25 is bonded to the flange 7. At the time of the above insertion, since the tip of the outer panel 6a of the flange 7 can slide on the surface of the slidable member 27, the tip of the outer panel 6a slides with insertion into the trim portion 20 and rotation of the trim portion 20. The surface of the movable member 27 is moved and stopped by coming into contact with the side surface of the caulking sponge 26 which is the stepped portion 23b. The double-sided adhesive tape 25 can face the side surface of the flange 7, and the double-sided adhesive tape 25 is pressed. Can be glued.

Next, the cross-sectional shape of the opening trim weather strip 10 will be described with reference to FIG. The second embodiment is different in that the shape of the trim portion 20 is substantially U-shaped in cross section, and will be described mainly with respect to different points. The description of the same parts as those of the first embodiment will be omitted.
The opening trim weather strip 10 is integrally formed from a trim portion (mounting base portion) 20 attached to the flange 7 and having a substantially U-shaped cross section, and the trim portion 20, and abuts against the door frame bulge portion 2 a of the door 2. Thus, a hollow seal portion (hollow seal portion) 30 for sealing between the door 2 and the vehicle body opening periphery 6 is provided.

  The trim portion 20 has a substantially U-shaped cross section including a vehicle outer side wall 21, a vehicle inner side wall 22, and a bottom wall 23. The vehicle outer side wall 21, the vehicle inner side wall 22 and the bottom wall 23 of the trim portion 20 are formed integrally and continuously, and an insert (core core) formed of a metal plate or a hard synthetic resin that reinforces the clamping force for clamping the flange. Material) is not buried. For this reason, the trim part 20 can be flexibly deformed according to the shape of the flange 7.

  A vehicle inner side holding lip 24 extends obliquely toward the inside of the trim portion 20 at the tip of the vehicle inner side wall 22, and the vehicle inner side holding lip 24 is brought into contact with the side surface of the flange 7. Therefore, the side surface on the vehicle inner side of the flange 7 can be held and sealed, and the flange 7 can be held together with the vehicle outer side wall 21. Furthermore, even if the thickness of the flange 7 changes, the vehicle inner side holding lip 24 can be bent in accordance with the change in the thickness, and the retaining property and the sealing property can be ensured.

As in the first embodiment, the vehicle outer side wall 21 has a substantially flat cross section, and a double-sided adhesive tape 25 is attached to the inner surface of the vehicle outer side wall 21. The opening trim weather strip 10 is bonded to the side surface of the flange 7 by a double-sided adhesive tape 25.
When the double-sided adhesive tape 25 is used, as in the first embodiment, it only adheres to the outer surface of the flange 7, so the mounting method is the same even if the thickness of the flange 7 changes. The adhesive force to the flange 7 is the same, and mounting is easy.

A front end portion 21 b made of a sponge material is integrally formed at the front end of the vehicle outer side wall 21. When the vehicle outer side wall 21 is attached to the flange 7, the front end portion 21 b can contact the bent portion of the outer panel 6 a and seal between the outer panel 6 a and the opening trim weather strip 10.
First, similarly to the embodiment, a hollow seal portion 30 is integrally provided on the outer surface of the vehicle outer side wall 21. Instead of the hollow seal portion 30, a lip-shaped seal portion may be provided on the outer surface of the vehicle outer side wall 21 instead of the hollow shape.

The bottom wall 23 is formed in a substantially flat plate shape, and similarly to the first embodiment, a step portion 23b for locking the tip of the flange 7 is formed on the inner surface in the vicinity of the continuous portion with the vehicle outer side wall 21 slightly. Has been.
As a result, the position where the opening trim weather strip 10 is attached to the flange 7 can be reliably determined. Note that the continuous portion is formed in a concave curved shape as in the first embodiment.
Further, as in the first embodiment, a caulking sponge 26, which is a caulking material, is adhered to the inner surface of the bottom wall 23.

The hard material of the bottom wall 23 can be formed from hard rubber having a JIS hardness HA of 85 ° to 95 °, for example. Similarly to the first embodiment, the hard material of the second embodiment is made of hard EPDM solid rubber having a JIS hardness of HA 90 °. For this reason, even if the front end of the flange 7 abuts on the step portion 23b, it has sufficient hardness and rigidity, and the step portion 23b is rarely deformed.
Other portions of the vehicle inner side wall 30 and the vehicle outer side wall 21 can be formed of a soft rubber having a JIS hardness HA of 60 ° to 80 °. In this part of the second embodiment, as in the first embodiment, EPDM solid rubber having a JIS hardness of HA 70 ° is used. For this reason, even if the strength sufficient to grip the flange 7 and the number of panels forming the flange 7 increase and the thickness of the flange 7 changes, the flange 7 has irregularities such as spot weld marks. Can also be flexible enough to follow.

When the opening trim weather strip 10 according to the second embodiment is mounted on the flange 7, first, as shown in FIGS. 4 and 5, the trim portion 20 of the opening trim weather strip 10 is attached to the flange 7. It is placed obliquely and the flange 7 is brought into contact with the vehicle interior holding lip 24.
At this time, the outer panel 6a on the outermost side of the flange 7 is slightly longer than the other panels, so that the tip is brought into contact with the inner surface of the slidable member 27. Then, the flange 7 is inserted into the trim portion 20 while sliding the surface of the vehicle interior holding lip 24. At this time, the tip of the outer panel 6 a moves toward the bottom wall 23 while sliding on the surface of the slidable member 27.

  After the front end of the outer panel 2d comes into contact with the bottom wall 23, the trim portion 20 is rotated in the direction of the arrow in FIG. Then, the side surface of the outer panel 2d comes into contact with the protrusion 21c of the vehicle outer side wall 21 and rotates with the protrusion 21c as a fulcrum. The double-sided adhesive tape 25 can move and abut against the side surface of the caulking sponge 26 and stop, the double-sided adhesive tape 25 can face the side surface of the flange 7, and the double-sided adhesive tape 25 can be pressed and bonded.

  In the opening trim weather strip 10, in both the first and second embodiments, the hollow seal portion 30 is formed of a sponge material of EPDM rubber or olefin-based thermoplastic elastomer, and the trim portion (mounting base portion) 20 is hard. The portion other than the material is formed of EPDM rubber or a solid material of olefinic thermoplastic elastomer or a fine foamed material, and the hard material portion of the trim portion 20 is formed of EPDM rubber or a solid material of olefinic thermoplastic elastomer. And a product with good weather resistance can be obtained. Further, in this case, the opening trim weather strip 10 is entirely olefin-based and can be used after being crushed together and recycled.

Next, a method for manufacturing the door opening trim weather strip 10 will be described.
The door opening trim weather strip 10 is formed by extrusion molding, and the solid rubber constituting the trim portion 20 and the sponge rubber constituting the hollow seal portion 30 can be integrally extruded by an extrusion molding machine.

In the molding of the opening trim weather strip 10, when the molding material is a solid material or a fine foaming agent, synthetic rubber or thermoplastic elastomer is used. For example, EPDM rubber is used for synthetic rubber, and polyolefin elastomer is used for thermoplastic elastomer. Is used. As the sponge material, the above EPDM rubber and thermoplastic elastomer are used by foaming.
In the case of a hard material, polyethylene resin, polypropylene resin, hard rubber, hard thermoplastic elastomer, etc. can be used.

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 thermoplastic elastomer or a soft synthetic resin, it is foamed simultaneously with extrusion, cooled and solidified. Thereafter, it is cut to a predetermined length to produce an extruded part.
The extruded opening trim weather strip 10 is cut to a predetermined size, connected in a ring shape, and attached to the flange 7 at the opening edge of the vehicle body of the automobile.

It is sectional drawing of the state with which the opening trim weather strip which is the 1st Embodiment of this invention was attached to the vehicle body opening part periphery of the part along the AA in FIG. It is sectional drawing of the state with which the opening trim weather strip which is the 2nd Embodiment of this invention was mounted | worn with the vehicle body opening part periphery of the part along the AA in FIG. It is sectional drawing of a state when attaching the opening trim weather strip of this invention which is the 1st Embodiment of this invention to a flange. It is sectional drawing of the state which inserts a flange in a trim part when attaching the opening trim weather strip of this invention which is the 2nd Embodiment of this invention to a flange. It is sectional drawing of the state which rotates a trim part with respect to a flange when attaching the opening trim weather strip of this invention which is the 2nd Embodiment of this invention to a flange. It is a perspective view of the side of a car. 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 edge of a motor vehicle. It is a partial cross section figure in the state where other conventional door opening trim weather strips were attached to the opening edge of a car. It is a partial cross section figure in the state where other conventional door opening trim weather strips were attached to the opening edge of a car. It is a partial cross section figure in the state where other conventional door opening trim weather strips were attached to the opening edge of a car.

Explanation of symbols

6 Car body opening periphery 6a Outer panel 7 Flange 10 Door opening trim weather strip 20 Trim (mounting base)
21 Car Outer Side Wall 21c Projection 22 Car Outer Side Wall 23 Bottom Wall 23b Step 24 Car Inside Retaining Lip 25 Double-sided Adhesive Tape 26 Caulking Sponge (Coking Member)
27 Sliding member 30 Hollow seal part

Claims (11)

In the weather strip for sealing between the vehicle body opening / closing member of the automobile and the periphery of the vehicle body opening of the automobile,
The weather strip includes a mounting base that is attached to a flange provided on either the vehicle body opening / closing member or the periphery of the vehicle opening, and is integrally provided on the mounting base. A seal portion that contacts a vehicle body opening periphery or a vehicle body opening / closing member and seals between the vehicle body opening / closing member and the vehicle body opening periphery;
The mounting base has a substantially L-shaped cross section formed from at least a bottom wall and a vehicle outer side wall,
A weather strip for automobiles, wherein a double-sided adhesive tape is affixed to an inner side surface of the vehicle outer side wall, and a slidable member is provided from a side end of the double-sided adhesive tape to an inner surface of the bottom wall. In the weather strip for sealing between the vehicle body opening / closing member of the automobile and the periphery of the vehicle body opening of the automobile,
The weather strip includes a mounting base that is attached to a flange provided on either the vehicle body opening / closing member or the periphery of the vehicle opening, and is integrally provided on the mounting base. A seal portion that contacts a vehicle body opening periphery or a vehicle body opening / closing member and seals between the vehicle body opening / closing member and the vehicle body opening periphery;
The mounting base has a substantially U-shaped cross section formed from a vehicle outer side wall, a vehicle inner side wall, and a bottom wall,
A protrusion is formed on the vehicle inner side surface of the vehicle outer side wall, and a double-sided adhesive tape is attached from the vicinity of the tip of the vehicle outer side wall to the vicinity of the protrusion, and a sliding member from the vicinity of the protrusion to the inner surface of the bottom wall. A weather strip for automobiles.   The protrusion is formed so as to protrude to the inside of the mounting base up to substantially the same height as the surface of the double-sided adhesive tape, is brought into contact with the side surface of the flange, and the tip of the flange is brought into contact with the bottom wall. Item 3. A weather strip for automobiles according to Item 2.   4. The vehicle interior holding lip extends obliquely from the front end of the vehicle interior side wall toward the interior of the mounting base, and the vehicle interior retaining lip is brought into contact with a side surface of the flange. Weather strip for automobiles.   The automobile weather strip according to any one of claims 1 to 4, wherein a caulking member is mounted on an inner surface of the bottom wall.   The automobile weather strip according to any one of claims 1 to 5, wherein an inner surface of the bottom wall is formed with a stepped portion that engages a tip of the flange.   The automobile weather strip according to any one of claims 1 to 6, wherein a continuous portion of the bottom wall and the bottom wall of the vehicle outer side wall is formed of a harder material than the vehicle outer side wall.   2. The hard material of the bottom wall and the outer side wall of the vehicle is made of hard rubber having a JIS hardness of 85 ° to 95 °, and the other part of the mounting base is made of soft rubber having a JIS hardness of HA of 60 ° to 80 °. The automobile weather strip according to claim 7.   The automobile weather strip according to any one of claims 1 to 8, wherein the vehicle body opening / closing member is a door, and the weather strip is an opening trim weather strip.   10. The automobile part according to claim 7, wherein a portion other than the hard material of the mounting base is formed of a solid material or a fine foam material, and the seal portion is formed of a sponge material in a hollow shape. Weather strip.   The seal portion of the weather strip is formed of a sponge material of EPDM rubber or olefinic thermoplastic elastomer, and the portion other than the hard material of the mounting base is a solid material or fine foamed material of EPDM rubber or olefinic thermoplastic elastomer. The automobile weather strip according to any one of claims 7 to 10, wherein the hard material portion of the bottom wall is formed of a solid material of EPDM rubber or olefin-based thermoplastic elastomer.

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