JP2006096225A - Glass run for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run capable of preventing clearance between a molding lip and a door frame even when a tip of door glass intrudes at the time of rise of the door glass. <P>SOLUTION: A channel for holding the glass run 10 is not provided on the door frame 2, flanges 2f and 2g are arranged on an inner peripheral tip thereof, the glass run 10 is equipped with an outdoor side molding lip 24 and an indoor side molding lip 34 extending to a bottom wall 40 direction in almost parallel to the outside from tips of an outdoor side wall 20 and an indoor side wall 30, an outdoor side attachment groove 27 is provided between the outdoor side molding lip and the outdoor side wall, an indoor side attachment groove 37 is provided between the indoor side molding lip and the indoor side wall, the flange of the door frame is inserted into the outdoor side attachment groove and the indoor side attachment groove, the glass run is held, and a hard resin member 29 is provided on a bottom of the outdoor side attachment groove 27. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automotive glass run that is attached to the inner periphery of a door frame of an automobile door and guides the raising and lowering of the door glass, and in particular, without providing a channel for attaching the glass run to the inner periphery of the door frame, It relates to a glass run that is directly attached to the flange of the door frame.

  As shown in FIG. 3, a glass run 110 for guiding the raising and lowering of the door glass 5 is attached to the inner periphery of the door frame 2 of the door 1 of the automobile. The conventional mounting structure is shown in FIG. 4 is a cross-sectional view taken along line AA in FIG.

Conventionally, as shown in FIG. 3, the glass run 110 is attached in the channel 3 of the door frame 2 to guide the raising and lowering of the door glass 5 and to seal between the door glass 5 and the door frame 2. . Furthermore, the glass run 110 is formed by molding the upper side, the front side vertical side, and the rear side vertical side of the door 1 including the straight linear part 111 formed by extrusion molding in accordance with the shape of the door frame 2. Connected at the corner 112.
The seal between the door 1 and the vehicle body is made by a door weather strip 108 attached to the outer periphery of the door frame 2 and / or an opening trim weather strip 109 attached to the flange of the opening of the vehicle body. .

  As shown in FIG. 4, the glass run 110 has a substantially U-shaped cross section including an outer side wall 120, an inner side wall 130, and a bottom wall 140. A vehicle outer side seal lip 126 is provided so as to extend from the vicinity of the front end of the vehicle outer side wall 120 toward the inside of the substantially U-shaped cross section. In addition, a vehicle interior side seal lip 136 is also provided on the vehicle interior side wall 130 so as to extend from the vicinity of its front end toward the inside having a substantially U-shaped cross section. Further, an exterior molding lip 124 extends in the direction of the bottom wall 140 in parallel with the exterior side wall 120 from the vicinity of the front end of the exterior surface of the exterior side wall 120, and from the vicinity of the end of the exterior surface of the interior side wall 130 on the interior side. A car interior molding lip 134 extends in the direction of the bottom wall 140 in parallel with the car interior side wall 130.

  The vehicle outer side wall 120, the vehicle inner side wall 130 and the bottom wall 140 are inserted into the channel 3 provided in the door frame 2, and the outer surface of each wall is in contact with the inner surface of the channel 3. The side end of the channel 3 and the tip of the outer panel 2c of the door frame 2 are inserted between the vehicle outer side wall 120 and the vehicle outer side molding lip 124, and the channel 3 between the vehicle inner side wall 130 and the vehicle inner side molding lip 134 is inserted. The side end and the tip of the inner panel 2d are inserted to hold the glass run 110.

The door glass 5 slides on the inside of the glass run 110 having a substantially U-shaped cross section, and the both sides of the end of the glass run 110 are sealed and held by the vehicle exterior seal lip 126 and the vehicle interior seal lip 136. Has been.
When closing the door glass 5, the door glass 5 of the power window rises in the door frame 2, the upper end of the door glass 5 is inserted into the glass run 110 mounted on the upper side of the door frame 2, hits the bottom wall 140, The bottom wall 140 hits the channel 3 and is held by the channel 3.

  However, attempts have been made to eliminate the channel 3 of the door frame 2 in order to reduce the weight of the automobile. When the channel 3 is abolished, when the door glass 5 rises and comes into contact with the bottom wall 140 of the glass run 110, the bottom wall 140 is deformed upward so as to be pushed into the door frame 2, so that the entire glass run 110 is Will be pulled upward. Therefore, the vehicle exterior molding lip 124 and the vehicle interior molding lip 134 are pulled by the vehicle exterior side wall 120 and the vehicle interior side wall 130, and the leading ends of the vehicle exterior molding lip 124 and the vehicle interior molding lip 134 are connected to the inner periphery of the door frame 2. Deforms in a direction away from the flange at the tip of the. For this reason, a clearance gap arises between the front-end | tip of the vehicle outer side molding lip 124 and the vehicle inner side molding lip 134, and the door frame 2, and appearance deteriorates.

  For this reason, when the front end of the door glass 5 enters the glass run 110, in order to prevent the glass run 1 from being deformed, as shown in FIG. Some of them are provided with hard resin members 129 and 139 (see, for example, Patent Document 1). However, in this case, the door frame 2 also has the channel 3 and the bottom wall 140 is not deformed, and this hard resin member prevents the deformation of the vehicle outer side wall 120 and the vehicle inner side wall 130. , 134 is not sufficient to prevent deformation and lifting.

In addition, there is a case in which the vehicle outer side wall 120, the vehicle inner side wall 130, and the bottom wall 140 are formed of a hard resin and a part thereof is formed of a soft material (for example, see Patent Document 2). However, in this case, the entire glass run 110 is poor in flexibility, is not sufficiently mounted on the vehicle body, takes time to assemble, and sufficiently follows a curved portion such as a corner portion of the vehicle body. could not.
Japanese Patent No. 3132039 JP 58-50272 A

  For this reason, it is necessary to obtain a glass run that does not cause a gap between the molding lip and the door frame even if the front end of the door glass enters when the door glass is raised.

In order to solve the above-mentioned problem, the present invention of claim 1 is attached to the inner periphery of a door frame of an automobile door, and in an automotive glass run for guiding the raising and lowering of the door glass,
A flange that holds the glass run is provided at the inner periphery tip of the door frame,
The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the substantially U-shaped cross section. The vehicle outer side seal lip and the vehicle inner side seal lip are provided, and the vehicle outer side seal lip and the vehicle inner side seal lip are used to seal the vehicle outer side surface and the vehicle inner side surface at both ends of the door glass. A vehicle outer molding lip and a vehicle inner molding lip that extend in the direction of the bottom wall substantially parallel to the outer sides of the vehicle outer side wall and the vehicle inner side wall are provided, and a vehicle outer mounting groove is provided between the vehicle outer molding lip and the vehicle outer side wall. There is a vehicle inner mounting groove between the vehicle inner molding lip and the vehicle inner side wall, and a flange is inserted in the vehicle outer mounting groove and the vehicle inner mounting groove to hold the glass run. Of the outside mounting groove Is automotive glass run, characterized in that provided a hard resin member having a bent corner portion section.

  In the first aspect of the present invention, the door frame is not provided with a channel for holding the glass run, and the glass run is held only by the flange at the inner peripheral tip of the door frame. The door frame can be easily manufactured and the cost can be reduced.

  The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the substantially U-shaped cross section. The vehicle outer side seal lip and the vehicle inner side seal lip are provided, and the vehicle outer side surface and the vehicle inner side surface are sealed by the vehicle outer side seal lip and the vehicle inner side seal lip.

  Therefore, when the door glass is raised, the tip of the door glass can be stored inside the glass run having a substantially U-shaped cross section consisting of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall. Can be held. The vehicle outer side seal lip and the vehicle inner side seal lip seal the vehicle outer side surface and the vehicle inner side surface at both ends of the door glass, so that the seal lip contacts the door glass as the door glass moves up and down, A seal between the door frame and the door glass can be made by the vehicle inner seal lip.

Since the vehicle outer side lip and the vehicle inner side lip that extend from the front end of the vehicle outer side wall and the vehicle inner side wall substantially parallel to the outside of the vehicle outer side wall and the vehicle inner side wall toward the bottom wall are provided. The inside molding lip can cover the outside and inside flanges of the door frame, so that it looks good.
A vehicle outer mounting groove is provided between the vehicle outer molding lip and the vehicle outer side wall, and a vehicle inner mounting groove is provided between the vehicle inner molding lip and the vehicle inner side wall. Insert the flange and hold the glass run. For this reason, even if it does not have a channel, the vehicle outer side wall and the vehicle inner side wall of the glass run are securely held directly by the vehicle outer side mounting groove and the vehicle inner side mounting groove, and when the door glass is raised, The lip and the vehicle interior seal lip can be brought into contact with the door glass.

  A hard resin member having a bent corner is provided at the bottom of the vehicle outer mounting groove. For this reason, when the door glass rises and its upper end comes into contact with the bottom wall of the glass run, the bottom wall is deformed in the interior direction (upward direction) of the door frame, but no channel is provided in the door frame. The deformation of the bottom wall becomes large. However, a hard resin member having a bent corner provided at the bottom of the vehicle outer mounting groove abuts against the tip of the flange to prevent the bottom wall and the vehicle outer side wall from being displaced. Therefore, deformation of the vehicle exterior molding lip can be prevented, the front end of the vehicle exterior molding lip is not separated from the door frame, and no gap is formed, and the appearance from the vehicle exterior is good.

  The present invention of claim 2 is an automotive glass run in which a hard resin member having a bent corner portion is provided at the bottom of the vehicle interior mounting groove.

  In the present invention of claim 2, since the hard resin member provided with the bent corner portion is provided at the bottom of the vehicle inner side mounting groove, similarly to the vehicle outer side mounting groove, the displacement between the bottom wall and the vehicle inner side wall is prevented. It is possible to prevent deformation of the vehicle interior molding lip, and to prevent the front end of the vehicle interior molding lip from separating from the door frame and creating a gap.

  According to a third aspect of the present invention, the hard resin member provided with the bent corner portion is an automotive glass run having a U-shaped cross section.

  In the present invention of claim 3, since the hard resin member provided with the bent corner portion is U-shaped in cross section, even if the side wall and the molding lip are pulled by the bottom wall due to the rise of the door glass, the U The front end of the flange of the door frame enters the central recess of the letter shape, and the misalignment between the side wall and the molding lip can be reliably prevented. For this reason, it can prevent that the front-end | tip of a molding lip leaves | separates from a door frame, and a clearance gap arises.

  According to a fourth aspect of the present invention, the hard resin member having a bent corner portion is an automotive glass run having an L-shaped cross section.

  In the present invention of claim 4, since the hard resin member having the bent corner portion is L-shaped in cross section, the side wall and the molding lip may be pulled by the bottom wall to shift due to the door glass rising. The front end of the flange of the door frame is engaged with the L-shaped corner portion, so that the misalignment between the side wall and the molding lip can be reliably prevented. For this reason, it can prevent that the front-end | tip of a molding lip leaves | separates from a door frame, and a clearance gap arises.

  According to a fifth aspect of the present invention, the hard resin member having a bent corner is an automotive glass run that is integrally extruded when the glass run body is extruded.

  In the present invention of claim 5, since the hard resin member provided with the bent corner portion is integrally extruded when the glass run body is extruded, the hard resin member provided with the bent corner portion and It can be firmly fused with the glass run body, so that it does not take time and effort to manufacture, and the cost can be reduced.

  According to the sixth aspect of the present invention, the hard resin member having a bent corner is formed of an olefin resin such as polypropylene or polyethylene or a hard olefin elastomer, and the glass run body is an olefin softer than the hard resin member. It is a glass run for automobiles formed of a thermoplastic elastomer.

  In the present invention of claim 6, the hard resin member having the bent corner portion is formed of an olefin resin such as polypropylene or polyethylene or a hard olefin elastomer, and the glass run body is an olefin softer than the hard resin member. Since they are made of a thermoplastic elastomer, they are the same type of material, and they can be firmly adhered to each other and pulverized together for recycling.

  The present invention of claim 7 is the glass run for automobiles in which the length in the width direction of the outside molding lip is formed to cover the flange of the door frame.

  In the present invention of claim 7, since the length in the width direction of the outside molding lip is formed to cover the flange of the door frame, the flange of the door frame can be covered, the appearance is good, and the vehicle The flange can be firmly held by the outer molding lip and the vehicle outer side wall. Since it has the hard resin member provided with the bending corner part, even if it lengthens a vehicle outside molding lip, the front-end | tip does not leave | separate from a flange, and it looks good.

The present invention provides a vehicle outer side seal lip by directly holding the vehicle outer side wall and the vehicle inner side wall of the glass run by the flange of the door frame without providing a channel in the door frame by the vehicle outer side mounting groove and the vehicle inner side mounting groove. The vehicle interior seal lip can be brought into contact with the door glass for sealing.
Since a hard resin member having a bent corner is provided at the bottom of the vehicle outer mounting groove, when the door glass rises and its upper end contacts the bottom wall of the glass run, it is provided at the bottom of the vehicle outer mounting groove. A hard resin member having a bent corner abuts against the tip of the flange to prevent the bottom wall and the vehicle outer side wall from being displaced. Therefore, deformation of the vehicle exterior molding lip can be prevented, and the front end of the vehicle exterior molding lip is not separated from the door frame and a gap is not generated.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 3 is a side view of the door 1 of the automobile. FIG. 1 is a cross-sectional view of the door frame 2 in the first embodiment, and is a cross-sectional view of a portion along the line AA of FIG. FIG. 2 is a cross-sectional view of the door frame 2 according to the second embodiment.

  As shown in FIG. 3, a door frame 2 is provided above the belt line of the door 1 of the automobile, and a door glass 5 is attached to be movable up and down. That is, a glass run 10 is attached to the inner periphery of the door frame 2 to guide the raising and lowering of the door glass 5 and to seal between the door glass 5 and the door frame 2. At this time, the door frame 2 is not provided with a channel for holding the glass run 10, and the glass run 10 is directly attached to the door frame 2 as described later.

The glass run 10 includes a substantially straight line portion 11 formed by extrusion molding as a whole and a corner portion 12 attached to the corner portion of the door frame 2 and formed by molding by connecting the straight portion 11. .
The straight portion 11 includes a portion attached to the upper side of the door frame 2, a portion attached to the rear side vertical side of the door frame 2, and a portion attached to the front side vertical side of the door frame 2.

The door frame 2 to which the straight portion 11 is attached has an opening for accommodating the glass run 10 with the front ends of the outer panel 2c and the inner panel 2d of the door frame 2 facing each other. The front ends of the inner panel 2d form a vehicle outer flange 2f and a vehicle inner flange 2g, respectively.
The straight portion 11 of the glass run 10 basically has substantially the same U-shaped cross-section in both the portion attached to the upper side portion of the door frame 2 and the portion attached to the vertical side portion.

At the corner portion of the door frame 2, the corner portion 12 of the glass run 10 is formed by molding so as to have a shape corresponding to the door frame 2, and at the same time, the straight portion 11 is connected at the corner portion 12. It is a part to be attached to the corner part of the door frame 2 so as to have substantially the same cross-sectional shape as the straight part 11.
The cross-sectional shape of the straight portion 11 of the glass run 10 attached to the upper side of the door frame 2 is substantially U-shaped in cross section from the vehicle outer side wall 20, the vehicle inner side wall 30, and the bottom wall 40, as shown in FIG. Is formed.

  A vehicle outer seal lip 26 extends from the vicinity of the front end of the vehicle outer side wall 20 toward the inside of the glass run 10 having a substantially U-shaped cross section. Further, the vehicle outer side molding lip 24 extends from the front outer surface of the vehicle outer side wall 20 in the direction of the bottom wall 40 so as to cover the vehicle outer side flange 2 f that is the tip of the outer panel 2 c of the door frame 2. A vehicle outer mounting groove 27 is formed between the vehicle outer side wall 20 and the vehicle outer molding lip 24.

A vehicle inner seal lip 36 extends from the vicinity of the front end of the vehicle inner side wall 30 toward the inside of the glass run 10 having a substantially U-shaped cross section, and a vehicle inner molding lip 34 extends from the front outer surface of the vehicle inner side wall 30. The door frame 2 extends in the direction of the bottom wall 40 so as to cover the inner flange 2g which is the tip of the inner panel 2d of the door frame 2. A vehicle interior mounting groove 37 is formed between the vehicle interior side wall 30 and the vehicle interior molding lip 34.
The vehicle outer side flange 2f at the tip of the outer panel 2c is inserted into the vehicle outer side mounting groove 27, and the vehicle inner side flange 2g at the tip of the inner panel 2d is inserted into the vehicle inner side mounting groove 37. At this time, the bottom wall 40 does not contact the door frame 2, and the glass run 10 is held only by the vehicle outer flange 2f and the vehicle inner flange 2g.

A hard resin member 29 having a bent corner is provided at the bottom of the vehicle outer mounting groove 27. As shown in FIG. 1, in 1st Embodiment, it is preferable that the cross-sectional shape of the hard resin member 29 provided with the bending corner part is made into a U-shape. When the cross-sectional shape is U-shaped, when the door glass 5 is raised, when the bottom wall 40 is pushed by the tip of the door glass 5 and the vehicle outer side wall 20 is displaced, the hard resin provided with a bent corner portion. The front end of the outside flange 2f of the door frame 2 enters the U-shaped central recess of the member 29, and the displacement of the side wall 40 and the outside molding lip 24 can be reliably prevented.
A hard resin member 39 having a bent corner portion at the bottom of the vehicle interior mounting groove 37 can be provided in the same manner as the vehicle exterior. In this case, when the door glass 5 is raised, the vehicle interior molding lip 34 can be prevented from being displaced.

  In the second embodiment, similarly to the first embodiment, the hard resin member 29 having a bent corner portion is provided at the bottom of the vehicle exterior mounting groove 27. As shown in FIG. 2, the hard resin member 29 having the bent corner portion can have an L-shaped cross section. When the cross-sectional shape is L-shaped, when the door glass 5 rises, pushes the bottom wall 40, and pulls the vehicle outer side wall 20, the tip of the flange 2f of the door frame 2 is engaged with the L-shaped corner. In combination, it is possible to reliably prevent the side wall 40 and the vehicle exterior molding lip 24 from being displaced.

  In both the first and second embodiments, the vehicle outer side holding lip 22 is provided on the outer surface of the root portion near the connection portion between the vehicle outer side wall 20 and the bottom wall 40. The vehicle outer side holding lip 22 is locked to a bent portion of the vehicle outer flange 2f on which the glass run 10 provided on the door frame 2 is mounted, thereby preventing the glass run 10 from being detached from the vehicle outer flange 2f. In addition, the gap between the inner surface of the outer flange 2f of the door frame 2 and the glass run 10 is sealed.

When the door glass 5 rises and the front end of the door glass 5 is inserted into the glass run 10, the front end of the vehicle outer seal lip 26 and the front end seal lip 36 come into contact with the front end of the door glass 5, and the door The space between the glass 5 and the door frame 2 is sealed.
The vehicle outer side wall 20 and the vehicle outer side seal lip 26 are smaller than the vehicle inner side wall 30 and the vehicle inner side seal lip 36, respectively, and the vehicle outer side seal lip 50 is smaller and extends obliquely to form a thin wall. For this reason, the door glass 5 can be positioned outside the vehicle in the glass run 10, and the level difference between the door glass 5 and the door frame 2 can be reduced. Therefore, generation of air resistance and wind noise is reduced, which is preferable in terms of design.

On the surface of the vehicle exterior seal lip 26 and the vehicle interior seal lip 36 on which the door glass 5 abuts, a low-sliding member of olefin-based thermoplastic elastomer (TPO) is integrally formed by coextrusion molding. A low sliding member such as urethane resin or silicon resin may be applied and formed. For this reason, when the door glass 5 slides in the glass run 10, the sliding resistance can be reduced, and the shift of the glass run 10 can be prevented.
Further, the inner surface of the vehicle outer side wall 20 and the rear surface of the vehicle outer seal lip 26 may also form a low sliding member such as TPO. In this case, adhesion between the vehicle outer side seal lip 26 and the vehicle outer side wall 20 can be prevented.
A low sliding member such as TPO is formed on the bottom wall 40 of the inner surface having a substantially U-shaped cross section, like the seal lips 26 and 36. For this reason, sliding resistance with the door glass 5 can be reduced.

  Similar to the vehicle outer side wall 20, a vehicle inner side holding lip 32 extends from the outer surface of the vehicle inner side wall 30. When the vehicle inner side wall 30 of the glass run 10 is attached to the vehicle inner flange 2g of the door frame 2, the vehicle inner flange 2g has a stepped portion, so that the vehicle inner side holding lip 32 is locked to the stepped portion. Thus, it is possible to prevent the vehicle interior side wall 30 of the glass run 10 from being detached from the door frame 2. The vehicle interior holding lip 32 is in contact with the inner surface of the vehicle interior flange 2g to hold the glass run 10 and seal between the door frame 2 and the glass run 10.

  The bottom wall 40 of the glass run 10 includes a bottom wall central portion 41 at the center, and a vehicle outer side wall 20 and a vehicle inner side wall 30 that are continuously formed from both ends of the bottom wall central portion 41 in the width direction. A thin bottom wall groove 46, 46 is formed at a continuous portion between the vehicle interior side wall 30 and the vehicle interior side wall 30. For this reason, when the glass run 10 is extruded, the glass run 10 is molded with the substantially U-shaped cross section open, and when the glass run 10 is mounted, the thin bottom wall groove 46 can be easily bent into a substantially U-shaped cross section.

Next, the operation of the molding lips 24 and 34 of the glass run 10 when the door glass 5 is raised will be described.
In the present invention, since the channel for holding the glass run 10 is not attached to the door frame 2, when the glass run 10 is attached to the door frame, the bottom wall 40 does not contact the door frame as described above. The vehicle outer side wall 20 and the vehicle inner side wall 30 hold the vehicle.
The door glass 5 ascends, and the front end of the door glass 5 enters between the vehicle outer seal lip 26 and the vehicle inner seal lip 36 of the glass run 10 and comes into contact with the bottom wall central portion 41 of the bottom wall 40 to contact the bottom wall central portion. When 41 is pushed up, the bottom wall 40 is deformed toward the inside of the door frame 2, but since the door frame 2 has no channel, the deformation of the bottom wall 40 becomes large. Therefore, the bottom wall groove portions 42 and 42 raise the vehicle outer side wall 20 and the vehicle inner side wall 30 upward.

And the front-end | tip of the vehicle outer side flange 2f and the vehicle inner side flange 2g is contact | abutted to the vehicle outer side installation groove | channel 27 and the vehicle inner side installation groove | channel 37, respectively.
However, as described above, the hard resin member 29 having the bent corner provided at the bottom of the vehicle outer mounting groove 27 abuts against the tip of the vehicle outer flange 2f, and the bottom wall 40 and the vehicle outer side wall 20 are displaced. To prevent. Therefore, deformation of the vehicle exterior molding lip 24 can be prevented, and the tip of the vehicle exterior molding lip 24 is not separated from the door frame 2 and no gap is formed. Similarly, when the rigid resin member 39 having a bent corner portion is attached to the vehicle interior mounting groove 37, it is possible to prevent the front end of the vehicle interior molding lip 34 from being separated from the door frame 2 to generate a gap.

Next, the manufacturing method of the glass run 10 is demonstrated.
In the molding of the glass run 10, the solid material is used for the molding material of the straight portion 11 and the corner portion 12, and synthetic rubber, thermoplastic elastomer, and soft synthetic resin are used. For example, for synthetic rubber, EPDM rubber, For thermoplastic elastomers, olefin-based elastomers are used, and for soft synthetic resins, soft vinyl chloride is used.

The straight part 11 is formed into a linear shape by an extruder and then cut into a predetermined dimension. Simultaneously with the extrusion of the straight portion 11, the hard resin member 29 having the bent corner portion of the vehicle outer side mounting groove 27 can be simultaneously extruded. When attaching the hard resin member 39 provided with the bent corner portion to the vehicle inner side mounting groove 37, the hard resin member 39 provided with the bent corner portion is similarly extruded.
In the case of a thermoplastic elastomer or a soft synthetic resin, it is cooled and solidified without being vulcanized. 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.

  Next, the molding part for forming the corner part 12 is molded by sandwiching the end of the straight part 11 cut to a predetermined size as described above between molds for molding the molding part, A solid material that forms a molded part is injected into the tee. The cross-sectional shape of the molded part is substantially the same as the cross-sectional shape of the extruded part. It is preferable to use the same type of molding material as that used for the extruded part. In the case of a thermoplastic elastomer or a soft synthetic resin, since the injected material is melted when injected into the mold, the extruded part and the molded part are integrally fused by the heat and pressure.

  In the case of synthetic rubber, the mold is heated and vulcanized after being poured into the mold. At this time, since the extrusion molding part and the molding part can be vulcanized and bonded using the same material or the same kind of material, they are integrally fixed. When the extruded part is formed of synthetic rubber, the mold part can be formed of a thermoplastic elastomer.

It is sectional drawing of the glass run which is embodiment of this invention, and is sectional drawing of the part along the AA of FIG. It is sectional drawing of the glass run which is other embodiment of this invention, and is sectional drawing of the part along the AA of FIG. It is a side view of a motor vehicle door. It is sectional drawing of the glass run attached to the conventional door frame, and is sectional drawing of the part along the AA of FIG. It is sectional drawing of the other conventional glass run.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Door frame 5 Door glass 10 Glass run 20 Car outer side wall 27 Car outer side mounting groove 29 Hard resin member provided with bending corner part 30 Car inner side wall 37 Car inner side mounting groove 39 Hard resin member 40 provided with a bending corner part 40 Bottom wall 41 Bottom wall center

Claims (7)

In an automotive glass run that is attached to the inner periphery of the door frame of an automobile door and guides the raising and lowering of the door glass,
Provide a flange to hold the glass run at the inner peripheral tip of the door frame,
The glass run has a substantially U-shaped cross section composed of a vehicle outer side wall, a vehicle inner side wall, and a bottom wall, and extends from the front end of the vehicle outer side wall and the vehicle inner side wall to the inside of the substantially U-shaped cross section. A vehicle outer side seal lip and a vehicle inner side seal lip are provided, and the vehicle outer side surface and the vehicle inner side surface of both side ends of the door glass are sealed by the vehicle outer side seal lip and the vehicle inner side seal lip,
A vehicle outer molding lip and a vehicle inner molding lip extending from the front end of the vehicle outer side wall and the vehicle inner side wall in the direction of the bottom wall substantially parallel to the outer sides of the vehicle outer side wall and the vehicle inner side wall are provided. A vehicle outer mounting groove between the outer molding lip and the vehicle outer side wall, and a vehicle inner mounting groove between the vehicle inner molding lip and the vehicle inner side wall, and the vehicle outer mounting groove and the vehicle inner mounting groove, The flange is inserted to hold the glass run,
An automotive glass run comprising a hard resin member having a bent corner at the bottom of the vehicle outer mounting groove.   The glass run for automobiles according to claim 1, wherein a hard resin member having a bent corner portion is provided at a bottom portion of the vehicle interior mounting groove.   The glass run for automobiles according to claim 1 or 2, wherein the hard resin member provided with the bent corner portion has a substantially U-shaped cross section.   The glass run for automobiles according to claim 1 or 2, wherein the hard resin member provided with the bent corner portion has a substantially L-shaped cross section.   The glass run for automobiles according to any one of claims 1 to 4, wherein the hard resin member provided with the bent corner portion is integrally extruded when the glass run body is extruded.   The hard resin member having the bent corner is formed of an olefin resin such as polypropylene or polyethylene or a hard olefin elastomer, and the glass run body is formed of an olefin thermoplastic elastomer that is softer than the hard resin member. The glass run for automobiles according to any one of claims 1 to 5.   The glass run for an automobile according to any one of claims 1 to 6, wherein a length in a width direction of the outside molding lip is formed to a length that covers a flange of the door frame.

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