JP4458484B2 - Automotive glass run - Google Patents

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. In particular, the channel for attaching the glass run to the inner periphery of the door frame includes a glass run. It is related with the glass run from which the vehicle outer side wall of a glass run is directly exposed to the vehicle outer side, without providing the part which hold | maintains the vehicle outer side wall.

  As shown in FIG. 2, 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. 3 is a cross-sectional view taken along line AA in FIG.

Conventionally, as shown in FIG. 2, 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.
As shown in FIG. 3, the seal between the door 1 and the vehicle body is a door weather strip 108 attached to the outer periphery of the door frame 2 and / or an opening trim web attached to the flange of the opening of the vehicle body. The strip 109 is used.

  Further, the glass run 110 has a substantially U-shaped cross section including a vehicle outer side wall 120, a vehicle 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 the front end thereof 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. A side end portion of the channel 3 and a front end portion of the outer panel 2c of the door frame 2 are inserted between the outer side wall 120 and the outer side molding lip 124, and the channel 3 The side end and the tip of the inner panel 2d are inserted to hold the glass run 110.

The door glass 5 slides inside the substantially U-shaped main body portion of the glass run 110, and both side surfaces of the end portion of the door glass 5 are sealed by the vehicle exterior seal lip 126 and the vehicle interior seal lip 136. Being held.
When the door glass 5 is closed, the door glass 5 is raised along the vertical side of the door frame 2 by the power window regulator, and the upper edge of the glass run 110 is attached to the upper side of the door frame 2. The bottom wall 140 hits the bottom wall 140 of the channel 3 and is held in the channel 3 via the glass run 110.

However, as shown in FIG. 4, in order to improve the appearance of the automobile and to restrict the structure of the door frame 2, the vehicle outer side wall 120 of the glass run 110 may be shortened and the vehicle inner side wall 130 may be lengthened. (For example, refer to Patent Document 1).
Furthermore, in order to improve the appearance, attempts have been made to reduce the width of the door frame 2 on the outside of the vehicle and to eliminate the outside portion of the door frame 2. In this case, if the rigidity of the vehicle outer side wall 120 of the glass run 110 is low, the vehicle outer side wall 120 of the glass run 110 is deformed by the vibration of the door glass 5 due to the vibration of the automobile or the like, and the door glass 5 becomes the glass run 110. There was a risk of losing.

For this reason, in order to increase the rigidity of the glass run 110, inserts are also embedded as reinforcing materials inside the vehicle outer side wall 120, the vehicle inner side wall 130, and the bottom wall 140 (see, for example, Patent Document 2). .)
However, embedding the insert increases the weight of the glass run 110 and impairs the weight reduction of the vehicle, and simultaneously inserts the rubber with the insert, making the manufacturing complicated, increasing the cost, and reducing the production efficiency. did.

Further, although the glass run 110 and the vehicle outer side wall 120 are pressed by the molding 150 attached to the side surface on the vehicle outer side of the door frame 2, there are the same problems as described above.
JP 2000-280753 A No. 4-9204

  For this reason, when the tip of the door glass when the door glass is raised is inserted into the main body of the glass run, even if the door glass vibrates, a glass run that can reliably hold the tip of the door glass is obtained. Was necessary.

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,
The portion of the door frame to which the glass run is mounted is formed in a substantially L-shaped cross section, and the main body portion of the glass run has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a bottom wall. At least the continuous portion with the vehicle inner side wall is formed in a substantially L shape, the vehicle inner side wall is made of a material having a hardness of IRHD of 70 ° to 80 °, and the vehicle outer side wall and the bottom wall are made of the vehicle inner side wall. It is made of IRHD 85 ° -95 ° material, which has higher hardness than the material, and has a substantially channel shape and high rigidity .
The outer surface of the vehicle inner side wall is locked by a channel fixed to one side of a substantially L-shaped cross section of the door frame in the vicinity of the front end and the continuous portion of the bottom wall with the vehicle inner side wall. The door frame is held in contact with the other side of the substantially L-shaped cross section,
A vehicle outer glass seal lip and a vehicle inner glass seal lip extending from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the main body having a substantially U-shaped cross section, respectively, have a hardness of IRHD 70 ° to 80 °. An automotive glass run characterized in that the vehicle outer side surface and the vehicle inner side surface at the end of the door glass are sealed by the vehicle outer side glass seal lip and the vehicle inner side glass seal lip.

According to the first aspect of the present invention, since the portion of the door frame to which the glass run is mounted is formed in a substantially L-shaped cross section, the cross-sectional shape is simplified compared to the case where it is formed in a substantially U-shaped cross section. Is easy to mold.
Since the main body of the glass run has a substantially U-shaped cross section consisting of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall, when the door glass rises, the vehicle run side wall, the vehicle inner side wall, and the bottom wall The front end of the door glass can be stored inside the glass run having a substantially U-shaped cross section, and the door glass can be securely held.
Since the continuous portion of the bottom wall with at least the vehicle interior side wall is formed in an approximately L shape, it matches the shape of the portion of the door frame where the glass run is mounted and can be mounted securely.

The vehicle inner side wall is made of a material having an IRHD of 70 ° to 80 °, and the vehicle outer side wall and the bottom wall are substantially channel-shaped with a material having an IRHD of 85 ° to 95 °, which is harder than the material of the vehicle inner side wall. As a result, the vehicle outer side wall and the bottom wall have sufficient rigidity to hold the tip of the door glass. The vehicle inner side wall can have a strength for holding the glass run in the channel, and has sufficient flexibility even when it abuts against the door glass, and can be reliably sealed.
And, since the vehicle outer side wall and the bottom wall have a substantially channel shape and are formed of a hard material, the rigidity of the vehicle outer side wall and the bottom wall can be increased, and at least the vehicle outer side wall is hardly deformed, The force that holds the front end of the door glass is strong, and even if the insert is not embedded, it is possible to prevent the front end of the door glass from vibrating due to the vibration of the automobile and the like to be removed from the inside of the main body of the glass run.

In addition, the vehicle inner side wall is made of a material having an IRHD of 70 ° to 80 °, and the vehicle outer side wall and the bottom wall are made of a material having a hardness higher than that of the soft material of the vehicle inner side wall of an IRHD of 70 ° to 80 °. Therefore, the rigidity of the vehicle outer side wall can be increased, and the tip of the door glass can be prevented from coming off from the inside of the glass run due to vibration of the automobile or the like .

  A vehicle outer glass seal lip and a vehicle inner glass seal lip extending from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the main body having a substantially U-shaped cross section, respectively, have a hardness of IRHD 70 ° to 80 °. The vehicle outer side surface and the vehicle inner side surface at the end portion of the door glass were sealed by the vehicle outer side glass sealing lip and the vehicle inner side glass sealing lip. For this reason, when the door glass rises and enters the inside of the glass run, the vehicle outer side glass seal lip and the vehicle inner side glass seal lip can flexibly come into contact with the door glass, and the glass run can be smoothly raised. . Further, as the door glass moves up and down, the glass seal lip comes into contact with the door glass, and the seal between the door frame and the door glass can be ensured by the vehicle outer side glass seal lip and the vehicle inner side glass seal lip.

In the first aspect of the present invention, the glass run is fixed to one side of the door frame having a substantially L-shaped cross section on the outer surface of the vehicle inner side wall near the front end and the continuous portion of the bottom wall with the vehicle inner side wall. Locked by both ends of the channel. For this reason, the vehicle interior side wall and the bottom wall can be held together, and the glass run can be stably held.
Since the outer surface of the bottom wall is in contact with the other side of the door frame having a substantially L-shaped cross section, the bottom wall can be brought into close contact with the door frame to prevent displacement of the vehicle outer side wall.

According to a second aspect of the present invention, there is provided an automotive glass run in which the outer surface of the vehicle outer side wall is coated with a material having a hardness of IRHD of 70 ° to 80 °.

In the present invention of claim 2 , the vehicle outer side wall is formed of a hard material having a hardness of IRHD of 85 ° to 95 °, and the vehicle outer side glass seal lip is formed of a soft material of a material having a hardness of IRHD of 70 ° to 80 °. Since the outer surface of the vehicle outer side wall is coated with a material having a hardness of IRHD of 70 ° to 80 °, the connection portion between the vehicle outer side wall and the vehicle outer side glass seal lip can be covered, and the appearance is good.

According to the third aspect of the present invention, an outer panel seal lip formed of a material having a hardness of IRHD 70 ° to 80 ° extends in the door frame direction on the outer surface of the continuous portion of the outer side wall and the bottom wall. An automotive glass run in which a panel seal lip abuts against a door frame.

According to the third aspect of the present invention, a vehicle outer side panel seal lip formed of a material having a hardness of IRHD 70 ° to 80 ° extends in the door frame direction on the outer surface of the continuous portion of the vehicle outer side wall and the bottom wall. Because the panel seal lip comes into contact with the door frame, the exterior panel seal lip formed of a soft material closes the gap between the door frame and the glass run when the glass run is attached to the door frame. Can do.

According to a fourth aspect of the present invention, there is provided a glass run for an automobile in which a bottom wall lip formed of a material having a hardness of IRHD 70 ° to 80 ° is formed on the inner surface of the bottom wall on the inside of the main body having a substantially U-shaped cross section. It is.

In the present invention of claim 4 , since the bottom wall lip formed of a material having a hardness of IRHD 70 ° to 80 ° is formed on the inner surface of the bottom wall toward the inside having a substantially U-shaped cross section, the door glass rises. When the inside of the glass run attached to the upper side of the door frame enters, the tip of the door glass comes into contact with the bottom wall lip, and the impact of the bottom wall lip can absorb the impact. Will collide with the bottom wall and no abnormal noise will be generated.

In the present invention of claim 5 , the material having a hardness of IRHD 70 ° to 80 ° is an EPDM rubber or an olefinic thermoplastic elastomer, and the material having a hardness of IRHD 85 ° to 95 ° is an EPDM rubber, an olefinic thermoplastic elastomer or an olefinic material. This is a glass run for automobiles, which is a synthetic resin.

In the present invention of claim 5 , the material having a hardness of IRHD 70 ° to 80 ° is an EPDM rubber or an olefinic thermoplastic elastomer, and the material having a hardness of IRHD 85 ° to 95 ° is an EPDM rubber, an olefinic thermoplastic elastomer or a polypropylene resin. It is. For this reason, both the soft material and the hard material are the same type of material, and both can be firmly adhered to each other and can be pulverized together for recycling. Both the soft material and the hard material can be used. A glass run excellent in weather resistance can be obtained.

The present invention of claim 6 is a glass run for automobiles in which low sliding members are formed on the surfaces of the outside glass seal lip and the inside glass seal lip.

In the present invention of claim 6 , since the low sliding member is formed on the surface of the vehicle outer side glass seal lip and the vehicle inner side glass seal lip, when the door glass rises and enters the inside of the glass run, Sliding smoothly with the outer glass seal lip and the vehicle inner glass seal lip, no abnormal noise is generated.

The vehicle inner side wall is made of a material having a hardness of IRHD 70 ° to 80 °, and the vehicle outer side wall and the bottom wall are made of a material having a hardness of IRHD 85 ° to 95 ° with a bottom wall and a vehicle outer side wall in a substantially channel shape. The rigidity of the outer side wall can be increased, and the tip of the door glass can be prevented from being detached from the inside of the glass run due to vibration of the automobile or the like.
On the outer surface of the vehicle inner side wall, it is locked by both side ends of the channel fixed to one side of the substantially L-shaped cross section of the door frame in the vicinity of the front end and the continuous portion of the bottom wall of the vehicle inner side wall. The inner side wall and the bottom wall can be held together, and the glass run can be stably held. Since the outer surface of the bottom wall is in contact with the other side of the door frame having a substantially L-shaped cross section, the bottom wall can be brought into close contact with the door frame to prevent displacement of the vehicle outer side wall.
A vehicle outer glass seal lip and a vehicle inner glass seal lip extending from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the main body having a substantially U-shaped cross section, respectively, have a hardness of IRHD 70 ° to 80 °. Is made of a soft material, so that the vehicle exterior glass seal lip and vehicle interior glass seal lip can flexibly contact the door glass, and the vehicle exterior glass seal lip and vehicle interior glass seal lip provide a space between the door frame and the door glass. The seal can be ensured.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 2 is a side view of the door 1 of the automobile. FIG. 1 is a cross-sectional view of a glass run 10 attached to a door frame 2 in an embodiment of the present invention, and is a cross-sectional view of a portion along the line AA in FIG.

  As shown in FIG. 2, 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 provided with a channel 3 for holding the glass run 10 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. Now, a description will be given by taking as an example a part related to a portion attached to the upper side of the door frame 2.

As shown in FIG. 1, the glass run 10 is stored on the upper side of the door frame 2 to which the straight portion 11 is attached so that the tips of the outer panel 2 b and the inner panel 2 c of the door frame 2 are overlapped with each other. Form an opening.
On the upper side of the door frame 2, the outer panel 2b made of zinc, aluminum, or stainless steel has a substantially L-shaped cross section, and one side of the L-shape forms an upper flat surface with respect to the door frame 2, The other side forms a flat side surface that opens to the outside of the vehicle with respect to the door frame 2. As will be described later, the glass run 10 is disposed on the upper flat surface of the outer panel 2b so as to abut the bottom wall 40 thereof. In the upper side of the door frame 2, the outer panel 2b may be formed of a molding member.

The front end in the vehicle outer direction of the upper flat surface of the outer panel 2b is bent upward to form a panel molding portion 2d, which forms the outer surface of the door frame 2. A protective trim 2f is attached to the tip of the panel molding portion 2d.
A channel 3 having a substantially U-shaped cross section is fixed to the side flat surface of the outer panel 2b having a substantially L-shaped cross section by welding or screwing. The front ends of the channels 3 are bent in the inner direction with a substantially U-shaped cross section, and are fitted into recesses provided in the glass run 10 to hold the glass run 10. In other words, the channel holding lips 34, 36, 37 provided on the vehicle inner side wall 30 of the glass run 10 are fitted into the channel 3 having a substantially V-shaped cross section, and in particular, the channel holding lips 34, 37 are the tip of the channel 3. The glass run 10 is held in the channel 3 by engaging with the bent portion.

In order to increase the strength of the door frame 2, a sheet metal reinforcement 4 having a substantially U-shaped cross section is provided on the inner side of the outer panel 2 b.
An inner panel 2 c made of sheet metal is formed inside the reinforcement 4. Further, a resin garnish is provided inside the inner panel 2c. In FIG. 1, the tip part of the lower part of a garnish is described. A lip-shaped door weather strip (not shown) is attached to the upper end of the inner panel 2c between the protective trim 2f and seals between the opening of the vehicle body. The lower end of the garnish is bent to hold the vehicle interior side wall 30 of the glass run 10.

The glass run 10 has a main body portion having a substantially U-shaped cross section including an outer side wall 20, an inner side wall 30 and a bottom wall 40. The vehicle outer side wall 20 and the bottom wall 40 are formed of a material (hard material) having a hardness of IRHD 85 ° to 95 °, and the vehicle inner side wall 30 is formed of a material (soft material) having a hardness of IRHD 70 ° to 80 °. In addition, the continuous site | part with the vehicle interior side wall 30 of the bottom wall 40 is formed in cross-sectional substantially L shape, and this site | part is also formed with the said hard material. Inserts as a reinforcing material are not embedded in the inside of the vehicle outer side wall 20, the vehicle inner side wall 30, and the bottom wall 40. For this reason, the glass run 10 can be reduced in weight.
The vehicle outer side wall 20 is formed with a vehicle outer side glass seal lip 21 extending obliquely from the front end in an internal direction having a substantially U-shaped cross section. The vehicle exterior glass seal lip 21 is formed of the soft material described above. This soft material continues from the vehicle outer side glass seal lip 21 and covers the outer surface of the vehicle outer side wall 20, and the tip thereof forms the vehicle outer side panel seal lip 22.

  The vehicle outer panel seal lip 22 is formed of a soft material on the outer surface of the vehicle outer side wall at the continuous portion of the vehicle outer side wall 20 and the bottom wall 40, and when the glass run 10 is attached to the door frame 2, the vehicle outer panel. The seal lip 22 comes into contact with the end of the outer panel 2b of the door frame 2 on the vehicle outer side. For this reason, the vehicle exterior panel seal lip 22 closes the gap between the outer panel 2 b of the door frame 2 and the bottom wall 40 of the glass run 10, and can seal between the glass run 10 and the door frame 2.

  As described above, the bottom wall 40 is formed in a substantially L-shaped cross section at a continuous portion with the vehicle interior side wall 30 and is formed of a hard material integrally with the vehicle exterior side wall 20. Since the vehicle outer side wall 20 and the bottom wall 40 are formed in a substantially channel shape and are made of a hard material, the rigidity of the vehicle outer side wall 20 and the bottom wall 40 can be increased and is not easily deformed. The force to hold the front end of the door glass 5 is strong, and even if the insert is not embedded, the front end of the door glass 5 is also vibrated due to the vibration of the automobile or the like, thereby preventing the glass run 10 from being detached from the inside of the main body. it can.

  Further, a bottom wall lip 41 is formed on the bottom wall 40 from the portion having a substantially L-shaped cross section that is continuous with the vehicle interior side wall 30 toward the inside of the main body of the glass run 10. The bottom wall lip 41 is formed of a soft material continuously from the vehicle inner side wall 30. For this reason, when the door glass 5 rises and its front end is inserted into the main body of the glass run 10 mounted on the upper side of the door frame 2, the front end of the door glass 5 comes into contact with the bottom wall lip 41, The impact of the tip of the door glass 5 can be absorbed by the elasticity of the bottom wall lip 41, and the generation of abnormal noise due to the door glass 5 can be prevented.

A bottom wall channel recess 42 is formed on the outer surface of the continuous portion of the bottom wall 40 with the vehicle interior side wall 30. Around the bottom wall channel recess 42, a bottom wall reinforcing portion 43 having a substantially L-shaped cross section is formed. The bottom wall reinforcing portion 43 is formed of a hard material continuously from the bottom wall 40. For this reason, when the glass run 10 is mounted on the door frame 2, one end of the channel 3 is fitted into the bottom wall channel recess 42, but is firmly held by the bottom wall reinforcing portion 43. The door glass 5 is not removed from the channel 3 by raising and lowering the door glass 5.
In the present embodiment, the bottom wall channel recess 42 is formed in the bottom wall 40, but a recess into which one end of the channel 3 is fitted may be provided on the outer surface of the vehicle interior side wall 30.

The vehicle inner side wall 30 is formed of a soft material, and is formed continuously with the above-described bottom wall lip 41 on the inner surface of the continuous portion with the bottom wall 40 and extends to the vicinity of the bottom wall channel recess 42 on the outer surface. The vehicle interior channel holding lip 37 is formed.
A vehicle inner side glass seal lip 31 is formed at the front end of the vehicle inner side wall 30 toward the inside of the substantially U-shaped cross section. The vehicle inner side glass seal lip 31 is formed larger than the vehicle outer side glass seal lip 21 because the inner portion of the door frame 2 is larger due to the structure of the door frame 2.
As described above, the channel holding lips 34 and 36 are also integrally formed with the soft material on the vehicle interior side wall 30.

Further, low sliding members such as silicone paint, urethane paint, and polyethylene thin film are applied or adhered to the outer surfaces of the vehicle inner glass seal lip 31 and the vehicle outer glass seal lip 21 that are in contact with the door glass 5. For this reason, when the door glass 5 rises and is inserted into the glass run 10, the outside glass seal lip 21, the inside glass seal lip 31 and the door glass 5 slide smoothly, and noise is generated. It does not occur.
This low sliding member is preferably applied or adhered to the surface of the bottom wall lip 41 as well.

A vehicle interior cover lip 32 is formed on the tip of the vehicle interior side wall 30 on the side opposite to the vehicle interior glass seal lip 31. The vehicle interior cover lip 32 can cover the end of the garnish described above, and can improve the aesthetic appearance. Further, the vehicle interior glass seal lip 31 and the vehicle interior cover lip 32 can continuously guide the front end of the door glass 5, and even if the front end of the door glass 5 slightly deviates to the interior of the vehicle, the main body of the glass run 10 Can be introduced inside.
It is preferable to apply or bond a low sliding member to the surface of the vehicle interior cover lip 32 as well.
A vehicle interior panel recess 33 can be provided between the back surface of the vehicle interior cover lip 32 and the tip of the vehicle interior side wall 30. The glass run 10 can be held by fitting the front end of the garnish into the vehicle interior panel recess 33.

The vehicle interior side surface of the vehicle interior side wall 30 may be formed in a concave shape in order to improve flexibility and reduce weight. This makes it easier to attach the vehicle interior side wall 30 to the channel 3.
Further, as described above, the channel holding lip 36 that contacts the channel 3 may be provided on the vehicle interior side wall 30. The channel holding lip 36 can hold the glass run 10 and seal between the glass run 10 and the channel 3.

Next, the manufacturing method of the glass run 10 is demonstrated.
In the molding of the glass run 10, synthetic rubber, thermoplastic elastomer, and soft synthetic resin are used as the material having a hardness IRHD of 70 ° to 80 ° of the molding material of the linear portion 11, and the material hard material having a hardness of IRHD 85 ° to 95 ° is used. Synthetic rubber, thermoplastic elastomer, and synthetic resin are used. For example, EPDM rubber is used for synthetic rubber, olefinic elastomer, EVA is used for thermoplastic elastomer, and soft polyethylene is used for soft synthetic resin. EPDM rubber and olefinic thermoplastic elastomer are preferable, and recycling is easy.

The straight portion 11 is formed into a linear shape by an extruder and then cut into a predetermined dimension.
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.
In addition, a low sliding member such as silicone resin, urethane paint, olefinic thermoplastic elastomer (TPO) is applied to the surface of the vehicle exterior seal lip and the vehicle interior seal lip that are in contact with the door glass, or during extrusion molding. It is integrally formed by thin layer extrusion.
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. The molding material is preferably the same type as the material used for the extruded part, but only one of the materials having a hardness of IRHD 70 ° to 80 ° or a hardness of IRHD 85 ° to 95 ° is used. Mold. 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. Even when the extruded part is formed of synthetic rubber, the molded 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 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

2 Door frame 3 Channel 5 Door glass 10 Glass run 20 Car exterior side wall 21 Car exterior glass seal lip 22 Car exterior panel seal lip 30 Car interior side wall 31 Car interior glass seal lip 40 Bottom wall 41 Bottom wall lip

Claims (6)

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,
The portion for mounting the glass run of the door frame is formed in a substantially L-shaped cross section,
The main body portion of 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 a continuous portion of at least the vehicle inner side wall of the bottom wall is formed in a substantially L shape. The vehicle inner side wall is made of a material having an IRHD of 70 ° to 80 °, and the vehicle outer side wall and the bottom wall are made of a material having an IRHD of 85 ° to 95 ° having a hardness higher than that of the material of the vehicle inner side wall. Highly rigid in a channel shape ,
The outer surface of the vehicle inner side wall is locked by a channel fixed to one side of a substantially L-shaped cross section of the door frame in the vicinity of a continuous portion between the front end and the vehicle inner side wall of the bottom wall. The outer surface of the wall is held in contact with the other side of the door frame in a substantially L-shaped cross section,
The vehicle outer side glass seal lip and the vehicle inner side glass seal lip extending from the front end of the vehicle outer side wall and the vehicle inner side wall toward the inside of the main body portion having a substantially U-shaped cross section respectively have a hardness of IRHD 70 ° to 80 °. A glass run for automobiles, wherein the vehicle outer side surface and the vehicle inner side surface at the end of the door glass are sealed with the vehicle side glass seal lip and the vehicle side glass seal lip. The glass run for automobiles according to claim 1, wherein an outer surface of the vehicle outer side wall is coated with a material having a hardness of IRHD of 70 ° to 80 °. On the outer surface of the continuous portion of the vehicle outer side wall and the bottom wall, a vehicle outer side panel seal lip formed of a material having a hardness of IRHD 70 ° to 80 ° extends in the door frame direction, and the vehicle outer side panel seal lip is connected to the door frame. The glass run for motor vehicles of Claim 1 or Claim 2 which contact | abuts. Above the bottom wall of the inner surface, any one of claims 1 to 3 bottom lip which is formed of a material having a hardness IRHD70 ° ~80 ° is formed on the inside of the main body portion of the substantially U-shaped cross-section The glass run for automobiles according to 1 . The material having a hardness of IRHD of 70 ° to 80 ° is an EPDM rubber or an olefinic thermoplastic elastomer, and the material having a hardness of IRHD of 85 ° to 95 ° is an EPDM rubber, an olefinic thermoplastic elastomer or an olefinic synthetic resin. automotive glass run according to 1 or any one of claims 4. Automotive glass run according to any one of claims 1 to 5 have low sliding member is formed on the vehicle outer glass sealing lip and the interior side surface of the glass sealing lip.

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