JP4370574B2 - 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.

As shown in FIG. 8, 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 FIGS.
FIG. 9 is a cross-sectional view taken along the line CC in FIG. FIG. 10 shows another conventional structure in which the trim 7 is attached to the door frame 2 and the glass run 110 is pressed by a part of the trim 7.

Conventionally, the glass run 110 is mounted in the channel 3 of the door frame 2 as shown in FIG. 9 and guides the raising and lowering of the door glass 5 in the door glass opening formed on the inner peripheral side of the door frame 2. In addition, the space between the door glass 5 and the door frame 2 is sealed. Further, the glass run 110 is molded by matching the shape of the door frame 2 with the upper side, the front side vertical side and the rear side vertical side of the door 1 composed of the straight linear part 111 formed by extrusion molding. 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 weather strip 109 attached to a flange at the periphery of the door opening of the vehicle body. Yes. When the door is closed, the opening weather strip 109 abuts against the vehicle inner side surface of the bulging portion 2g of the inner panel 2d of the door frame 2 to seal it.

  As shown in FIG. 9, 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 150 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 160 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, a vehicle outer side cover lip 124 extending from the front end of the vehicle outer side wall 120 toward the bottom wall 140 along the outer surface of the vehicle outer side is extended, and from the front end of the vehicle inner side wall 130 toward the bottom wall 140 along the outer surface of the vehicle inner side. The vehicle interior cover lip 134 is extended to the front (see, for example, Patent Documents 1 and 2).

  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. One end of the outer panel 2c of the door frame 2 and the channel 3 is inserted between the vehicle outer side wall 120 and the vehicle outer cover lip 124, and the inner panel 2d and the channel are inserted between the vehicle inner side wall 130 and the vehicle inner cover lip 134. The other tip of 3 is inserted to hold the glass run 110.

  At the door corner 2b, as shown in FIG. 7, the upper side 2e and the vertical side 2f of the door frame 2 are abutted and joined, and the upper side and the vertical side of the channel 3 are similarly joined. ing. For this reason, the corner portion of the door frame 2 is formed in an acute angle shape, and the glass run 110 is formed in the corner portion 112 by molding in an acute angle shape in accordance with the shape of the channel 3 of the door frame 2.

  On the other hand, since the vehicle body is formed by welding a plurality of panels forming the vehicle body, the corner portion has a radius of curvature at the corner of the door frame 2 at the vehicle body opening peripheral edge 6 of the vehicle body facing the door frame 2 when the door is closed. It becomes larger than the curvature radius of 2b. An opening weather strip 109 is attached to the vehicle body opening periphery 6 of the vehicle body to seal between the door 1 and the vehicle body opening periphery 6. However, as described above, since the radius of curvature is different between the corner portion of the vehicle body opening peripheral edge 6 and the corner portion 2b of the door frame 2, the hollow seal portion of the opening weather strip 109 and the expansion of the corner portion 2b of the door frame 2 are increased. The protruding part 2g could not come into contact with the corner part, and the sealing performance was lowered.

Therefore, as shown in FIG. 10, a glass run 110 is mounted on the channel 3 of the door frame 2, and a flange 2h is provided on the vehicle interior side of the door frame 2, and a trim 7 is attached to the flange 2h (for example, (See Patent Document 3). For this reason, the hollow seal portion of the opening weather strip 109 can be brought into contact with the inner side surface of the trim 7 at the corner portion.
However, in this case, since the trim 7 is also attached to the door frame 2, the trim 7 is attached with a radius of curvature smaller than the radius of curvature of the corner of the vehicle body opening peripheral edge 6, and the gap cannot be filled sufficiently. Further, it is necessary to manufacture the glass run 110 and the trim 7 and to attach the glass run 110 and the trim 7 to the door frame 2, respectively, which takes time and increases the cost and weight.

In addition, there is a type in which a block is provided on the central side surface of the door glass opening of the corner portion 2b of the door frame 2 so as to abut against the corner portion of the hollow seal portion of the opening weather strip (for example, Patent Document 4). reference.). However, in this case, it is necessary to manufacture the block separately, and it takes time and effort to attach the block to the door frame 2.
JP-A-4-260814 Japanese Patent No. 2607972 JP 2001-2333060 A JP-A-8-230465

  The present invention provides a glass that is easy to manufacture and easy to assemble while securely sealing between the opening weather strip and the hollow seal portion at the periphery of the vehicle body opening at the corner of the door frame of an automobile door. The challenge is to provide a run.

In order to solve the above-mentioned problems, the present invention of claim 1 is attached to the inner periphery of a door frame of a door of an automobile, guides the raising and lowering of the door glass, and includes a linear portion formed by extrusion molding, In a glass run for automobiles having a corner portion formed by molding attached to the corner portion,
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 exterior seal lip and the vehicle interior seal lip are provided, the vehicle exterior seal lip and the vehicle interior seal lip are used to seal the vehicle exterior and interior surfaces of both sides of the door glass, and the front end of the vehicle interior side wall is formed at the corner of the glass run. A corner bulge that extends inward from the vehicle is integrally formed,
The corner bulge portion has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a lower wall. The outer side wall extends from the tip of the vehicle inner side wall of the corner portion of the glass run, and the cross section of the corner bulge portion is substantially A plurality of ribs for connecting the outer side wall and the inner side wall are formed inside the U-shape, and a clip is attached to the rib formed on the side of the bulge portion of the door frame that is substantially U-shaped in the corner bulge portion, An automotive glass characterized in that a corner bulging portion is fixed to a door glass opening side surface of a bulging portion of a door frame with a clip, and an inner side wall abuts a corner portion of a vehicle body opening peripheral edge when the door is closed. It is a run.

  In the first aspect of the present invention, the glass run has a substantially U-shaped cross section composed of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall. A vehicle outer side seal lip and a vehicle inner side seal lip extending inwardly of the shape are provided, and the vehicle outer side surface and the vehicle inner side surface at both end portions of the door glass are sealed by the vehicle outer side seal lip and the vehicle inner side seal lip.

  Therefore, when the door is closed, the end portion of the door glass can be housed inside the substantially U-shaped cross section consisting of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall, and the door glass can be securely held. it can. 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 abuts on the door glass as the door glass moves up and down. And the seal between the door frame and the door glass can be performed by the vehicle interior seal lip.

  A corner bulging portion that extends inward from the front end of the vehicle inner side wall is formed integrally with the corner portion of the glass run. For this reason, when the corner part of a glass run is shape-molded, a corner bulge part can be simultaneously formed with the same metal mold | die, and manufacture is easy. Moreover, when attaching the corner part of a glass run to the door frame 2, a corner bulge part can be attached simultaneously and attachment is also easy.

The corner bulge portion was formed so as to contact the corner portion of the periphery of the vehicle body opening when the door was closed. For this reason, when the door is closed, the corner bulging portion abuts along the bend of the corner portion of the vehicle body opening portion of the vehicle body to seal the gap between the corner portion of the door frame and the corner portion of the vehicle body opening portion periphery. be able to.
Further, the corner bulging portion can be formed of an elastic material similar to the glass run, and the unevenness of the corner portion at the periphery of the vehicle body opening can be absorbed and sealed.

Further, in the present invention of claim 1 , since the corner bulging portion has a substantially U-shaped cross section composed of the outer side wall, the inner side wall and the lower wall, the corner bulging portion can be made hollow, In addition, the flexibility of the corner bulging portion can be improved, and even if the surface of the corner portion at the periphery of the vehicle body opening is uneven, it can be reliably sealed.
Since the outer side wall is extended from the front end of the vehicle inner side wall of the corner portion of the glass run, the corner portion and the corner bulge portion of the glass run can be continuously and integrally molded, and the glass run is a door. At the same time as attaching to the frame, it is easy to attach the corner bulge to the door frame.
Further, according to the present invention of claim 1, the corner bulging portion is formed with a plurality of ribs for connecting the outer side wall and the inner side wall inside the substantially U-shaped cross section. For this reason, an outer side wall and an inner side wall can be flexibly hold | maintained in cross-sectional substantially U shape, and the sealing performance between an opening weather strip and a corner bulge part can be improved.

Furthermore, in this invention of Claim 1, an inner side wall contact | abuts to the corner part of a vehicle body opening part periphery when a door closes . Therefore, when the door is closed, the corner portion at the periphery of the vehicle body opening can come into contact with the plane of the inner side wall . The surface has a large abutting area, and even if there is a variation in the assembly of the glass run, the corner of the periphery of the opening of the vehicle body can be reliably in contact with the plane of the inner side wall and sealed.
Further, according to the present invention of claim 1, a clip is attached to a rib formed on the side of the bulging portion of the door frame that has a substantially U-shaped cross section of the corner bulging portion, and the corner bulging portion is used as the bulging portion of the door frame. Therefore, when the glass run is attached to the door frame, it can be easily and surely fixed only by pressing the corner bulging portion against the door frame.

According to the second aspect of the present invention, the outer side wall and the inner side wall of the corner bulging portion have a substantially triangular planar shape, and the bottom of the substantially triangular shape is continuous with the lower wall, and the corner portion at the periphery of the vehicle body opening. The other two sides of the glass run are automotive glass runs having a shape that is integrally continuous with the tip of the inner side wall of the corner portion of the glass run.

In the present invention of claim 2 , since the planar shape of the outer side wall and the inner side wall of the corner bulging portion is substantially triangular, the shape of the corner portion of the glass run and the corner portion of the periphery of the opening of the vehicle body is approximately. It is the same shape, and the gap produced by the difference in the lower radius of curvature can be closed at the corner bulging portion.
The substantially triangular base is continuous with the lower wall of the corner bulge and has the same radius of curvature as that of the corner of the periphery of the vehicle body opening. The bottom of the corner bulge can be positioned.

  The other two sides have a shape that is continuous with the tip of the vehicle interior side wall of the corner portion of the glass run. For this reason, when the corner bulging portion is formed, the corner bulging portion at the tip of the inner side wall of the glass run can be firmly and integrally formed, and the glass run is attached to the corner portion of the door frame. Sometimes, the mounting operation of the glass run and the mounting operation of the corner bulging portion can be performed simultaneously, and the mounting operation is easy.

According to a third aspect of the present invention, the straight line portion of the glass run is formed of EPDM rubber or an olefinic thermoplastic elastomer, and the corner portion of the glass run is an automotive glass run formed of an olefinic thermoplastic elastomer.

In the present invention of claim 3 , the straight portion of the glass run is formed of EPDM rubber or an olefinic thermoplastic elastomer, and the corner portion of the glass run is formed of an olefinic thermoplastic elastomer. For this reason, the straight line portion of the glass run has good weather resistance, and the corner portion of the glass run does not require vulcanization, is easy to mold, and has flexibility. Furthermore, since the straight line portion and the corner portion of the glass run are formed of the same olefin-based material, it is possible to obtain an easily recyclable product having good adhesion and weather resistance.

The present invention of claim 4 is attached to the inner periphery of a door frame of a door of an automobile, guides the raising and lowering of the door glass, and is a mold attached to a corner portion of the door frame and a linear portion formed by extrusion molding. In a glass run for automobiles having a corner portion formed by molding, 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 the front end of the vehicle outer side wall and the vehicle inner side wall. The vehicle outside seal lip and the vehicle interior seal lip that extend toward the inside having a substantially U-shaped cross-section are provided, respectively, and the vehicle exterior surface and the vehicle interior at both end portions of the door glass are formed by the vehicle exterior seal lip and the vehicle interior seal lip. Seals the sides and integrally forms a corner bulge at the corner of the glass run that extends from the tip of the vehicle's inner side wall toward the interior of the vehicle and toward the center of the door glass opening. And,
The corner bulge portion has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a lower wall. The outer side wall extends from the tip of the vehicle inner side wall of the corner portion of the glass run, and the cross section of the corner bulge portion is substantially A plurality of ribs for connecting the outer side wall and the inner side wall are formed inside the U-shape, and a clip is attached to the rib formed on the side of the bulge portion of the door frame that is substantially U-shaped in the corner bulge portion, The corner bulging part is fixed to the door glass opening side surface of the bulging part of the door frame with a clip, and the inner side wall is a hollow seal of the opening weather strip attached to the corner part of the periphery of the car body opening part when the door is closed It is the glass run for motor vehicles characterized by contacting a part .

In the fourth aspect of the present invention, as in the first aspect of the present invention, the glass run has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a bottom wall. A vehicle outer side seal lip and a vehicle inner side seal lip, each extending from the front end of the vehicle to the inside having a substantially U-shaped cross section. The inside of the car is sealed.

  Therefore, when the door is closed, the end portion of the door glass can be housed inside the substantially U-shaped cross section consisting of the vehicle outer side wall, the vehicle inner side wall, and the bottom wall, and the door glass can be securely held. it can. 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 abuts on the door glass as the door glass moves up and down. And the seal between the door frame and the door glass can be performed by the vehicle interior seal lip.

A corner bulging portion that extends inward from the front end of the vehicle interior side wall and toward the center of the door glass opening is integrally formed at the corner portion of the glass run. For this reason, when the corner part of a glass run is shape-molded, a corner bulge part can be simultaneously formed with the same metal mold | die, and manufacture is easy. Moreover, when attaching the corner part of a glass run to the door frame 2, a corner bulge part can be attached simultaneously and attachment is also easy.
Furthermore, the corner bulging portion is formed with a plurality of ribs that connect the outer side wall and the inner side wall inside the substantially U-shaped cross section. For this reason, an outer side wall and an inner side wall can be flexibly hold | maintained in cross-sectional substantially U shape, and the sealing performance between an opening weather strip and a corner bulge part can be improved.

The corner bulging portion was formed so as to contact the hollow seal portion of the opening weather strip attached to the corner portion at the periphery of the vehicle body opening when the door was closed. For this reason, when the door is closed, the corner bulging portion abuts along the bend of the hollow seal portion of the opening weather strip to seal the gap between the corner portion of the door frame and the corner portion of the periphery of the vehicle body opening. Can do.
Further, the corner bulging portion can be formed of an elastic material similar to the glass run, and the unevenness of the corner portion at the periphery of the vehicle body opening can be absorbed and sealed.
Furthermore, a clip is attached to the rib formed on the side of the bulging portion of the door frame that has a substantially U-shaped cross section of the corner bulging portion, and the corner bulging portion is a surface on the door glass opening side of the bulging portion of the door frame. Therefore, when the glass run is attached to the door frame, it can be easily and surely fixed simply by pressing the corner bulging portion against the door frame.

According to the fifth aspect of the present invention, the corner bulging portion has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a lower wall, and the outer side wall opens the door glass from the front end of the inner side wall of the corner portion of the glass run. The inner side wall is a glass run for automobiles that is formed in substantially the same plane as the inner side surface of the bulged portion of the door frame.

According to the fifth aspect of the present invention, the corner bulging portion has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a lower wall, and the corner bulging portion has a substantially U cross section including an outer side wall, an inner side wall, and a lower wall. Since it has a letter shape, the corner bulge can be made hollow, the weight can be reduced, and the flexibility of the corner bulge can be improved. Even if the surface is uneven, it can be surely sealed.
Since the outer side wall extends from the tip of the inner side wall of the corner portion of the glass run toward the center of the door glass opening, the corner portion and the corner bulging portion of the glass run are continuously and integrally molded. At the same time that the glass run is attached to the door frame, it is easy to attach the corner bulge to the door frame.

  The inner side wall is formed in substantially the same plane as the vehicle inner side surface of the bulged portion of the door frame, and abuts against the hollow seal portion of the opening weather strip attached to the corner portion of the periphery of the vehicle body opening when the door is closed. Therefore, the hollow seal portion of the opening weather strip attached to the corner portion at the periphery of the vehicle body opening portion when the door is closed can come into contact with the vehicle inner side wall in a planar state. The surface has a large contact area, and even if there is a variation in the assembly of the glass run, the corner bulging part of the glass run and the inner side surface of the bulging part of the door frame are surely connected to the hollow seal part of the opening weather strip. Touch and seal.

In the present invention, a corner bulging portion is provided at the corner portion of the glass run, and is formed so as to come into contact with the corner portion of the periphery of the vehicle body opening when the door is closed. For this reason, when the door is closed, the corner bulging portion abuts along the bend of the corner portion of the vehicle body opening portion of the vehicle body to seal the gap between the corner portion of the door frame and the corner portion of the vehicle body opening portion periphery. be able to.
Moreover, since the corner bulging portion has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a lower wall, the corner bulging portion can be made hollow, and the surface of the corner portion at the periphery of the vehicle body opening portion Even if there is unevenness, it can be surely sealed.
Furthermore, since the corner bulging portion is formed with a plurality of ribs connecting the outer side wall, the inner side wall, and the lower wall inside the substantially U-shaped cross section, the outer side wall and the inner side wall are flexible in a substantially U-shaped cross section. Can be retained. Further, since the corner bulging portion is fixed by a clip, it can be easily and surely fixed only by pressing the corner bulging portion against the door frame.
Furthermore, since the inner side wall abuts on the corner portion of the vehicle body opening portion or the opening weather strip attached to the corner portion of the vehicle body opening portion when the door is closed, the abutting area is wide and there is a variation in assembly of the glass run. Even in this case, it is possible to seal by contacting the corner portion of the periphery of the vehicle body opening or the opening weather strip and the plane of the inner side wall.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 8 is a side view of the door 1 of the automobile. FIG. 1 is a cross-sectional view of the upper side of the corner portion of the glass run 10, and is a cross-sectional view taken along the line AA of FIG. 2 is a cross-sectional view of a straight portion of the glass run 10, FIG. 3 is a front view of a corner portion of the glass run 10, and FIG. 4 is a view from the corner bulging portion direction of the corner portion of the glass run 10. FIG. 5 is a perspective view of the corner portion of the glass run 10 as viewed from the direction of the glass run 10. FIG. 6 is a perspective view of the automobile, and FIG. 7 is a perspective view of a corner portion of the door frame 2.

  As shown in FIG. 8, the door frame 2 is provided in the upper part of the door 1 of a motor vehicle, and the door glass 5 is attached so that raising / lowering is possible. That is, the door glass 5 and the glass run 10 are provided in the door glass opening on the inner periphery of the door frame 2, and the glass run 10 guides the raising and lowering of the door glass 5, and the door glass 5 and the door frame 2 The gap is sealed.

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 an upper side portion attached to the upper side of the door frame 2, a vertical side portion attached to the rear side vertical side of the door frame 2, and a vertical side portion attached to the front side vertical side of the door frame 2. . On the front side of the door, the upper side portion of the door frame 2 is formed obliquely downward toward the front, and forms an obtuse angle with the front side vertical side portion. The door frame 2 is provided with a channel 3 having a substantially U-shaped cross section for mounting the glass run 10.

In the glass run 10, these straight portions 11 are molded and connected by molding at the corner portions so as to have a shape corresponding to the door frame 2, thereby forming the corner portions 12. The corner portion 12 is a portion to be attached to the corner portion 2 b of the door frame 2.
As shown in FIG. 7, a channel 3 is provided in the corner portion 2b of the door frame 2, and the corner portion of the glass run 10 is held by the channel 3 inside the outer panel 2c of the door frame 2 and the inner panel 2d. ing.

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. FIG. 2 is a cross-sectional view taken along the line BB in FIG.
The glass run 10 has basically the same substantially 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.
A vehicle outer side seal lip 50 extends from the front end of the vehicle outer side wall 20 toward the inside of the substantially U-shaped cross section. A vehicle outer cover lip 24 is provided at the tip of the vehicle outer side wall 20 so as to cover the vehicle outer side end of the channel 3 of the door frame 2. A vehicle interior seal lip 60 extends from the front end of the vehicle interior side wall 30 toward the inside of the substantially U-shaped cross section, and the vehicle interior cover lip 34 is located at the front end of the vehicle interior side wall 30 except for the corner portion. The door frame 2 is provided so as to cover the vehicle inner side end of the channel 3.

  A vehicle outer side holding lip 22 is provided in the vicinity of the base near the continuous portion with the bottom wall 40 of the vehicle outer side wall 20. The vehicle outer side holding lip 22 is in contact with the channel 3 and the folded step portion of the outer panel 2 c to seal between the inner surface of the channel 3. Further, the vehicle outer side holding lip 22 is engaged with the step portion of the outer panel 2c to prevent the glass run 10 from being detached from the channel 3.

The vehicle interior side wall 30 and the vehicle interior seal lip 60 are larger than the vehicle exterior side wall 20 and the vehicle exterior seal lip 50 and extend obliquely and are formed thick. For this reason, the door glass 5 can be positioned on the vehicle exterior side, and the level difference between the door glass 5 and the door frame 2 can be reduced. For this reason, generation | occurrence | production of air resistance and a wind noise reduces, and it is preferable also in design.
As described above, the vehicle inner side cover lip 34 is continuously formed at the tip of the vehicle inner side wall 30 except for the corner portion. The vehicle interior cover lip 34 covers the continuous portion of the channel 3 and the inner panel 2d on the upper and vertical sides of the door frame 2 to improve the appearance from the vehicle interior.

  A vehicle interior holding lip 32 extends from the vehicle interior side wall 30. When the glass run 10 is mounted, since the vehicle interior side wall of the channel 3 has a bent portion, the vehicle interior holding lip 32 is locked to the bent portion, and the vehicle interior side wall 30 of the glass run 10 is It is possible to prevent disconnection from the channel 3. The vehicle interior holding lip 32 is in contact with the bent portion of the channel 3 to hold the glass run 10 and seal between the channel 3 and the glass run 10.

Low sliding members such as polyethylene resin, urethane resin, silicone resin, and olefinic thermoplastic elastomer are formed on the surfaces of the vehicle exterior seal lip 50 and the vehicle interior seal lip 60 that contact the door glass 5. For this reason, when the door glass 5 slides in the glass run 10, the sliding resistance can be reduced. Further, since the sliding resistance with the door glass 5 is reduced, it is possible to prevent the deviation of the glass run from the channel 3 as a result.
Further, a low sliding member may be formed on the inner surface of the vehicle outer side wall 20 and the rear surface of the vehicle outer seal lip 50. In this case, adhesion between the vehicle outer side seal lip 50 and the vehicle outer side wall 20 can be prevented.
A low sliding member such as urethane resin is formed on the inner surface of the bottom wall 40 having a substantially U-shaped cross section, like the seal lips 50 and 60. For this reason, sliding resistance with the door glass 5 can be reduced.

Next, the corner portion 12 of the glass run 10 will be described.
As shown in FIG. 7, the door frame 2 is formed such that, in the corner portion 2 b on the rear side of the automobile door, the upper side portion is formed substantially horizontally and the vertical side portion is formed slightly inclined to the rear side. And the vertical side portion are joined so that the upper side portion and the vertical side portion form an acute angle. A channel 3 is provided in a corner 2 b on the rear side of the door frame 2, and the channel 3 is joined so that the vertical side and the upper side form an acute angle in the same manner as the door frame 2.

  As shown in FIGS. 1, 3, 4, and 5, the corner portion 12 of the glass run 10 connects the straight portion 11 attached to the upper side portion and the vertical side portion of the door frame 2, and the corner of the door frame 2. In order to form a shape along the portion 2b, it is formed by molding. The corner portion 12 is formed of a connecting portion 80 that connects the straight portion 11 attached to the upper side portion and the vertical side portion, and a corner bulging portion 70 that is integrally formed from the vehicle interior side wall 30 of the connecting portion 80. Yes.

The cross-sectional shape of the corner portion 12 of the glass run 10 is shown in FIG. FIG. 1 is a cross-sectional view of the upper side portion of the corner portion 12, and is a cross-sectional view along the line AA in FIG. The shape of the vertical side portion of the corner portion 12 is substantially the same. FIG. 2 is a cross-sectional view of the straight portion 11 (upper side portion) of the glass run 10.
FIG. 3 is a front view of the corner portion 12 of the glass run 10, and the upper side portion and the vertical side portion of the straight line portion 11 connected to the connection portion 80 of the corner portion 12 are indicated by dotted lines.

  The connecting portion 80 connected to the straight portion 11 of the glass run 10 of the corner portion 12 is formed at the corner portion of the corner, and as shown in FIG. 30 and the bottom wall 40 are formed in a substantially U-shaped cross section. Although the cross-sectional shapes of the upper side portion and the vertical side portion of the straight line portion 11 are slightly different, they are connected by continuously changing the difference at the connection portion 80 of the corner portion 12. Further, similarly to the straight portion, the vehicle interior seal lip 60 and the vehicle exterior seal lip 50 are provided.

  In the connecting portion 80, the front half of the vehicle interior side wall 30 and the portion of the vehicle interior seal lip 60 are extended from the corner of the corner in the direction of the upper side and the vertical side of the straight portion 11, respectively. A corner bulging portion 70 is formed from the front end of the side wall 30 toward the interior of the vehicle and toward the center of the door glass opening. The glass run 10 of the upper side portion and the vertical side portion of the straight portion 11 is sandwiched between molds that form the corner portion 12 by cutting out approximately half of the front end side of the vehicle inner side wall 30 and the portion of the vehicle inner seal lip 60, respectively. It is. Therefore, when the corner portion 12 is molded, the corner portion 12 and the upper side portion and the vertical side portion of the straight portion 11 are joined.

  As a result, when the door glass 5 rises and its front end enters the inside of the substantially U-shaped cross section of the glass run 10, the front end of the door glass 5 also enters the inside of the corner portion 12. Similarly, it can be sealed by the vehicle interior seal lip 60 and the vehicle exterior seal lip 50.

  In the corner portion 12 of the glass run 10, the corner bulging portion 70 is formed as described above. As shown in FIG. 1, the corner bulging portion 70 has a substantially U-shaped cross section including an outer side wall 71, an inner side wall 72, and a lower wall 73. The outer side wall 71 extends substantially in the same direction as the inner side wall 30 from the tip of the inner side wall 30 of the connecting portion 80 of the corner portion 12. A lower wall 73 is formed to be bent in a vehicle interior direction at a substantially right angle from the front end of the outer side wall 71, and an inner side wall 72 is formed substantially parallel to the outer side wall 71 from the front end of the lower wall 73. A plurality of ribs, for example, a first rib 74 and a second rib 75 are formed between the inner side wall 72 and the outer side wall 71. Some of the ribs are formed integrally with the lower wall 73 at the bottom. The inner side surface of the inner side wall 72 is formed substantially flush with the inner side surface of the bulging portion of the door frame 2.

In the planar shape of the corner bulging portion 70, the outer side wall 71 and the inner side wall 72 have a substantially triangular shape as shown in FIGS. 3 and 4. The substantially triangular bases of the outer side wall 71 and the inner side wall 72 are formed continuously with the lower wall 73, and the cross-sectional shape is substantially U-shaped as described above. The substantially triangular bases of the outer side wall 71 and the inner side wall 72 are curved as shown in FIGS. 3 and 5 and form a radius of curvature that is substantially the same as the radius of curvature of the corner of the vehicle body opening edge 6. To do.
The other two sides of the outer side wall 71 and the inner side wall 72 are formed integrally with the vehicle inner side wall 30 of the connecting portion 80 of the corner portion 12 of the glass run 10 and have a shape along the tip of the vehicle inner side wall 30.

When the glass run 10 is mounted on the door frame 2, it is mounted in the channel 3 of the door frame 2. At this time, the corner bulging portion 70 is mounted on the inner panel 2d of the door frame 2 at the corner portion. That is, the inner panel 2d of the door frame 2 is integrally extended from the channel 3 and forms a bulging portion 2g having a flat lower surface. The corner bulge is formed on the lower surface of the bulging portion 2g of the inner panel 2d. The second rib 75 of the portion 70 contacts. As shown in FIGS. 1 and 4, a clip 76 is attached to the second rib 75. The clip 76 is attached to a mounting hole provided on the lower surface of the bulging portion 2g of the inner panel 2d .

When the corner bulging portion 70 is attached to the bulging portion 2g of the inner panel 2d, a substantially the same surface as the side surface of the bulging portion 2g of the inner panel 2d and the inner side wall 72 of the corner bulging portion 70 is formed. To do. The corner portion of the hollow seal portion 9a of the opening weather strip 9 attached to the peripheral edge 6 of the vehicle body abuts on this surface.
Since the curvature radius of the bottom portion of the corner bulging portion 70 is substantially the same as the curvature radius of the corner portion of the vehicle body opening periphery 6 of the vehicle body, after the glass run 10 is mounted on the door 1, when the door is closed, The corner bulging portion 70 can be sealed by coming into contact with the corner portion of the hollow seal portion 9 a of the opening weather strip 9.

In addition, when the opening weather strip 9 is attached to the vehicle body opening periphery 6, the inner side wall 72 of the corner bulging portion 70 is connected to the corner of the vehicle body opening periphery 6 of the vehicle body or as shown in FIG. It abuts against the hollow seal portion 9a of the opening weather strip 9 attached to the corner portion of the periphery 6 of the vehicle body opening.
For this reason, even if the radius of curvature of the corner portion 2b of the door frame 2 is smaller than the radius of curvature of the corner portion of the vehicle body opening peripheral edge 6 of the vehicle body, the glass run 10 causes the door 1 and the vehicle body opening peripheral edge at the corner portion. Between 6 can be sealed.

In the molding of the glass run 10, a synthetic rubber, a thermoplastic elastomer, and a soft synthetic resin are used as the molding material for the straight portion 11 and the corner portion 12. For example, EPDM rubber is used for synthetic rubber, and olefin is used for thermoplastic elastomer. Soft vinyl chloride or the like is used for the base elastomer and soft synthetic resin. When EPDM rubber and olefin-based elastomer are used, recycling is easy because of the same material.
The straight portion 11 is formed in a straight line by an extrusion molding machine.
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 the case of a thermoplastic elastomer or a soft synthetic resin, it is cooled and solidified. Thereafter, it is cut to a predetermined length to produce an extruded part.

  Next, the molding part forming the corner part 12 is formed by cutting the extruded member forming the linear part 11 manufactured as described above into a predetermined dimension, and using the end part of the cut extrusion part as described above. As described above, the upper part of the vehicle interior side wall and the vehicle interior cover lip are cut out, the mold molded part is sandwiched between molds to be molded, and a material for forming the mold molded part is injected into the mold cavity. 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.

  In the above embodiment, the clip is integrally molded with the molding material. However, the clip may be made of a separate synthetic resin, and the resin plate including the clip portion is insert-molded. A corner bulging portion may be formed.

It is sectional drawing of the corner part in the connection part 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 front view in the corner part of the door frame of the glass run which is embodiment of this invention. It is sectional drawing in the linear part of the glass run which is embodiment of this invention, and is sectional drawing of the part along the BB line of FIG. It is a front view in the corner part of the door frame of the glass run which is embodiment of this invention. It is the perspective view which looked at the corner part of the glass run in embodiment of this invention from the corner bulge part direction. It is the perspective view which looked at the corner part of the glass run in embodiment of this invention from the glass run direction. It is a perspective view of a car. It is a perspective view of the corner part of the door frame 2 of a motor vehicle door. 1 is a side view of an automobile door. It is an attachment relation figure of the weather strip in the conventional door frame. It is a perspective view of the corner part of the other conventional glass run.

Explanation of symbols

2 door frame 2b corner portion 5 door glass 9 opening weather strip 10 glass run 11 straight portion 12 corner portion 20 vehicle outer side wall 30 vehicle inner side wall 40 bottom wall 70 corner bulging portion 71 outer side wall 72 inner side wall 73 lower wall 76 clip 80 connections

Claims (5)

It is attached to the inner periphery of the door frame of an automobile door, guides the raising and lowering of the door glass, and includes a straight part formed by extrusion molding and a corner part formed by molding attached to the corner part of the door frame. In the automotive glass run
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 extending, 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 of both side ends of the door glass ,
The corner portion of the glass run is integrally formed with a corner bulging portion extending in the vehicle interior direction from the front end of the vehicle inner side wall, and the corner bulging portion is substantially cross-sectionally composed of an outer side wall, an inner side wall, and a lower wall. It is U-shaped, and the outer side wall is extended from the tip of the vehicle inner side wall of the corner portion of the glass run, and the outer side wall and the inner side wall are connected to the inside of the substantially U-shaped cross section of the corner bulging portion. A plurality of ribs are formed, and a clip is attached to the rib formed on the side of the bulging portion of the door frame that is substantially U-shaped in cross section of the corner bulging portion, and the corner bulging portion is attached to the door frame. A glass run for an automobile , wherein the clip is fixed to a surface of the bulging portion on the door glass opening side with the clip, and the inner side wall abuts on a corner portion of the periphery of the vehicle body opening when the door is closed .   The outer side wall and the inner side wall of the corner bulging portion have a substantially triangular shape in plan view, and the bottom of the substantially triangular shape is continuous with the lower wall of the corner bulging portion, and the corner portion at the periphery of the vehicle body opening portion. 2. The glass run for automobiles according to claim 1, having a radius of curvature substantially the same as the radius of curvature of the glass run, and the other two sides having a shape that is integrally continuous with a tip of the inner side wall of the corner portion of the glass run. .   The glass for automobiles according to claim 1 or 2, wherein the straight part of the glass run is formed of EPDM rubber or an olefinic thermoplastic elastomer, and the corner part of the glass run is formed of an olefinic thermoplastic elastomer. run. It is attached to the inner periphery of the door frame of an automobile door, guides the raising and lowering of the door glass, and includes a straight part formed by extrusion molding and a corner part formed by molding attached to the corner part of the door frame. In the automotive glass run
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 extending, 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 of both side ends of the door glass,
The corner portion of the glass run is integrally formed with a corner bulging portion extending from the front end of the vehicle inner side wall toward the interior of the vehicle and in the center direction of the door glass opening. The side wall and the lower wall have a substantially U-shaped cross section, and the outer side wall extends from the front end of the vehicle inner side wall of the corner portion of the glass run, and the inside of the corner bulge portion has a substantially U-shaped cross section. A plurality of ribs for connecting the outer side wall and the inner side wall are formed, and a clip is attached to the rib formed on the side of the bulging portion of the door frame that has a substantially U-shaped cross section of the corner bulging portion, and the corner An opening weather in which the bulging portion is fixed to the door glass opening side surface of the bulging portion of the door frame with the clip, and the inner side wall is attached to a corner portion of the periphery of the vehicle body opening when the door is closed Automotive glass run, characterized in that abuts against the hollow seal portion of the trip.   The corner bulging portion has a substantially U-shaped cross section including an outer side wall, an inner side wall, and a lower wall, and the outer side wall extends from the front end of the vehicle inner side wall of the corner portion of the glass run toward the center of the door glass opening. The glass run for an automobile according to claim 1, wherein the inner side wall is formed on a substantially same plane as the inner side surface of the bulging portion of the door frame.

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