JP4329033B2 - 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. 5, 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.
6 is a cross-sectional view taken along line AA in FIG. FIG. 7 is a perspective view of a corner portion of the door frame 2. FIG. 8 is a perspective view of a corner portion of the glass run 110 at a portion corresponding to the corner portion of the door frame 2.

Conventionally, the glass run 110 is attached in the channel 3 of the door frame 2 as shown in FIG. 6, and guides the raising and lowering of the door glass 5 and seals 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. 6, 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 in the direction of the bottom wall 140 along the outer surface of the vehicle outer side wall 120 extends from the vehicle outer side wall 120 along the outer surface of the vehicle outer side wall 120, and extends from the vehicle inner side wall 130 along the vehicle outer side surface. A vehicle interior cover lip 134 extending in the direction of the bottom wall 140 is extended.

  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 front end of the outer panel 2c of the door frame 2 is inserted between the vehicle outer side wall 120 and the vehicle outer cover lip 124, and the front end of the inner panel 2d is inserted between the vehicle inner side wall 130 and the vehicle inner cover lip 134. A glass run 110 is held.

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 outside seal lip 150 and the inside seal lip 160. (For example, refer to Patent Document 1).
When the glass run 110 is attached to the door frame 2, the corner portion 112 of the glass run 110 is first attached to the corner portion 2b of the door frame 2, positioned, and then the straight portion 111 of the glass run 110 is attached to the door frame. 2 is installed. When the glass run 110 is mounted at the corner portion, as shown in FIG. 8, the bottom wall 140 of the glass run 110 is guided to the opening portion of the door frame 2 and the glass corresponding to the bending of the owner portion of the door frame 2 is made. The run 110 is fitted into the corner portion from the bottom wall 140 while rotating. As shown in FIG. 7, when the recess 2g is provided in the corner 2b of the inner panel 2d of the door frame 2, and the inner panel 2d is inserted between the vehicle interior side wall 113 and the vehicle interior cover lip 134, the recess 2g As shown in FIG. 8, there is a case in which a protrusion 112b provided between the vehicle inner side wall 113 and the vehicle inner cover lip 134 in the corner portion 112 is fitted (see, for example, Patent Document 2). Note that reference numeral 141 in FIG. 8 denotes a protrusion for preventing a shift of the glass run 110 provided on the bottom wall 140.

  By the way, in the corner part, the length of the flange part of each panel may need to be shorter than a general part from the design surface and the moldability of the inner panel 2d of the door frame 2, and the outer panel 2c. In this case, since the portion that holds the glass run 110 is reduced, the outside cover lip 124 or the inside cover lip 134 is deformed when the glass run 110 is mounted, and so on. There was a risk of opening.

If the cover lips 124 and 134 are formed by securing the holding portion of the glass run 110 in accordance with the shape of each panel, continuity with the cover lip of the extrusion molding portion may not be obtained, If the cover lips 124, 134 are made thick in order to increase the rigidity of the cover lips 124, 134, it is not realistic because a new problem of “sinking” on the surface occurs due to shrinkage of the material.
JP 2000-25462 (page 2-3, FIG. 2) JP 59-89249 (Figs. 4 and 5)

  For this reason, the present invention needs to improve the sealing property and the aesthetics by preventing the cover lip from floating and deforming at the corner portion of the glass run for automobiles at the corner portion of the door frame.

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 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, respectively. Extend the vehicle outer cover lip and the vehicle inner cover lip along the outer surface of the vehicle toward the connection direction with the bottom wall,
At the corner part of the door frame, insert the tip of the outer panel and inner panel of the door frame between the vehicle outer side wall and the vehicle outer cover lip and between the vehicle inner side wall and the vehicle inner cover lip, respectively. It holds, a notch is provided in a portion of the distal end portion of the outer panel of the corner portion of the door frame,
In the corner portion of the glass run, a side wall lower portion is provided in which the height from the bottom wall of the vehicle outer side wall of the portion corresponding to the cutout portion of the vehicle outer side wall is lowered to correspond to the cutout portion,
A vehicle outer side cover lip having an L-shaped cross section is provided from the front end of the lower side wall of the side wall to the outside. The cover lip extends and curves in a direction opposite to the front end of the cover lip from the bent portion of the L-shaped cross section. An automotive glass run that forms a U-shaped interior seal lip and has a height from the bottom wall of the curved seal lip that is at the same height as the vehicle outer side wall except for the lower side wall .

  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 were provided, and the vehicle outer side surface and the vehicle inner side surface of both side ends of the door glass were 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.

  The vehicle outer side cover lip and the vehicle inner side cover lip are extended from the front end of the vehicle outer side wall and the vehicle inner side wall along the respective outer surfaces in the connecting direction with the bottom wall. Therefore, the outer cover lip and the inner cover lip cover the front edge of the outer frame of the door frame and the flange of the inner panel to protect the front edge and improve the appearance of the panel from the outside and inside the vehicle. Can do.

  At the corner portion of the door frame, the end portions of the outer panel and the inner panel are inserted between the vehicle outer side wall and the vehicle outer side cover lip and between the vehicle inner side wall and the vehicle inner side cover lip, respectively, to hold the corner portion of the glass run. . Therefore, the vehicle outer cover lip and the vehicle outer side wall, and the vehicle inner cover lip and the vehicle inner side wall can be attached along the corner portion of the door frame, and the tip portion of the outer panel of the door frame and the inner panel is sandwiched. Thus, the glass run can be securely attached along the corner portion of the door frame.

  Since a notch is provided in a part of the front end of the vehicle frame inside or inside the door frame at the corner of the door frame, when forming the corner of the door frame, a flat plate material is formed by narrowing along the corner shape. However, the generation of wrinkles and the like due to the bending can be prevented by this notch portion, the surface of the door frame becomes smooth, and it corresponds to the notch portion provided at the corner portion of the glass run as will be described later. The glass run can be positioned by fitting with the convex portion.

In the corner portion of the glass run, provided with a side wall lower portion which is lowered so as to correspond to the notch height from the bottom wall of the exterior side wall of the portion corresponding to the notch of the door frame of the exterior side wall, the side walls A cover lip is extended from the lower part. For this reason, the side wall low part and the cover lip provided in that part form a convex shape corresponding to the notch, and can be fitted into the notch, and the position for attaching the glass run can be determined. In addition, since the cover lip is extended from the tip of the lower side wall portion , the width of the cover lip at the corresponding portion in the corner portion can be substantially narrowed, and even when the glass run is bent when attached to the corner portion The cover lip will not lift or deform.

In the first aspect of the present invention, since the vehicle outer side cover lip is provided in an L-shaped section from the front end of the lower side wall portion to the outside, one side portion of the L-shaped cross section extending from the lower side wall portion is notched on the panel. It can be inserted into the part, can be positioned for mounting the corner part of the glass run, and the side wall low part can be sandwiched by the other one side part of the L-shaped cross section.
From the bent part of the L-shaped section of the cover lip, it extends and curves in the direction opposite to the tip of the cover lip, and forms a seal lip with the tip facing the inside of the substantially U-shaped section, and from the bottom wall of the curved seal lip Since the height of the height of the seal lip is the same as that of the side wall outside the vehicle except for the lower side wall, the position of the seal lip can be the same as the seal lip provided on the side wall other than the lower side wall. The position where the tip comes into contact with the door glass can be made the same position as the seal lip of the other part, and the sealing performance between the door glass can be ensured.

According to a second aspect of the present invention, there is provided a glass run for an automobile in which a part of the notch at the front end of the panel is provided on the outer panel on the vehicle outer side and the lower side wall is provided on the vehicle outer side wall.

In the present invention of claim 2 , a part of the notch at the front end of the panel is provided on the outer panel on the vehicle outer side, and the lower side wall is provided on the vehicle outer side wall. For this reason, the car outer cover lip at the corner is provided at a position closer to the bottom wall than the car inner cover lip, and even when the corner is bent at the same angle when attached to the corner, the bending radius The bend of the corner part that is bent by the amount of increase is larger than that of the car inner cover lip, and the width of the car outer cover lip with the large bend can be narrowed, and the distortion at the corner part is also reduced. Lip lifting can be prevented.

The present invention of claim 3 is an automotive glass run in which a holding rib is provided on the inner surface of a cover lip extending from the lower side wall portion.

According to the third aspect of the present invention, since the holding rib is provided on the inner surface of the cover lip extending from the lower portion of the side wall, the contact area with the outer panel is reduced by the holding rib to reduce the contact resistance, and the outer panel can be smoothly formed. Can be inserted, and the tip of the outer panel can be securely held. Further, since the rigidity of the cover lip is increased by the holding rib, the thickness of the cover lip can be reduced correspondingly, and the occurrence of “sink” or the like can be further prevented.

According to a fourth aspect of the present invention, there is provided an automotive glass run in which the corner portion of the glass run is formed of an olefinic thermoplastic elastomer.

In the present invention of claim 4 , the corner portion of the glass run is formed of an olefinic thermoplastic elastomer, does not require vulcanization, is easy to mold, has flexibility, and the straight portion of the glass run is EPDM or When formed of an olefinic thermoplastic elastomer, a product that has good adhesion to the straight portion, good weather resistance, and easy recycling can be obtained.

In the present invention, a low side wall is provided on the side of the vehicle outer side wall or the vehicle inner side wall of the corner portion of the glass run corresponding to the notch portion of the door frame, and a cover lip is extended from the side wall lower portion. For this reason, the side wall low part and the cover lip provided in that part can be inserted into the notch part, the position for attaching the glass run can be determined, and the side of the side wall low part is directed outward. Since the cover lip is extended to have an L-shaped cross section, the cover lip is not lifted or deformed at the corner even when the glass run is bent.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 5 is a side view of the door 1 of the automobile. FIG. 1 is a cross-sectional view of the corner portion 2b of the door frame 2, and is a cross-sectional view of a portion along the line BB in FIG. FIG. 2 is a partial plan view of the corner portion 12 of the glass run 10. 3 is a cross-sectional view of the upper side portion of the door frame 2, and is a cross-sectional view of a portion along the line AA in FIG. FIG. 4 is a perspective view of the corner portion 2 b of the door frame 2.

  As shown in FIG. 5, 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, 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.

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. As shown in FIG. 4, the door frame 2 to which the straight portion 11 is mounted is provided with a channel 3 having a substantially U-shaped cross section for mounting 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 to form a corner portion 12, which is attached to the corner portion 2 b of the door frame 2. It becomes a part.
As shown in FIG. 4, the channel 3 is not provided at the corner portion 2 b of the door frame 2, and the glass run 10 is held only by the outer panel 2 c and the inner panel 2 d of the door frame 2.

As shown in FIG. 3, 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. Is formed.
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. Further, the vehicle outer side cover lip 24 extends from the front end of the vehicle outer side wall 20 along the outer surface of the vehicle outer side wall 20 in the connecting direction with the bottom wall 40. 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 a vehicle interior cover lip 34 extends from the vehicle interior side wall 30 to the vehicle interior side wall 30. It extends in the direction of connection with the bottom wall 40 along the outer surface.

The vehicle outer side wall 20 and the vehicle outer cover lip 24 are substantially U-shaped, and the outer panel 2c of the door frame 2 and the tip of the channel 3 are inserted between the vehicle outer side wall 20 and the vehicle outer side wall 20 and the vehicle outer side. The outside portion of the glass run 10 is held so as to be sandwiched by the cover lip 24.
The vehicle outer side cover lip 24 covers the outer surface of the outer panel 2c, and its tip abuts against a stepped portion of the outer panel 2c to seal between the glass run 10 and the outer panel 2c, and at the tip of the tip portion. Protect.

  A vehicle outer side holding lip 22 is provided in the vicinity of the base near the connection portion between the vehicle outer side wall 20 and the bottom wall 40. The vehicle outer side holding lip 22 is in contact with the folded portion of the channel 3 and the outer panel 2 c to seal between the inner surface of the channel 3. Further, the vehicle outer side holding lip 22 can be locked to the tip of the folded portion at the tip of the outer panel 2 c of the door frame 2 to prevent the glass run 10 from coming off 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.
The vehicle interior side wall 30 and the vehicle interior cover lip 34 are continuously formed in a substantially U shape. The tip of the inner panel 2d of the door frame 2 is inserted between the vehicle inner side wall 30 and the vehicle inner cover lip 34, and the channel 3 and the tip of the inner panel 2d are sandwiched between the vehicle inner side wall 30 and the vehicle inner cover lip 34. Thus, the inside of the glass run 10 is held.

A vehicle interior holding lip 32 extends from the vehicle interior side wall 30. When the front end portion of the inner panel 2d is inserted, the vehicle interior side wall of the channel 3 has a bent portion. Therefore, the vehicle interior holding lip 32 is locked to the bent portion, so that the vehicle interior side of the glass run 10 is The side wall 30 can be prevented from coming off the channel 3. The vehicle interior holding lip 32 is in contact with the channel 3 to hold the glass run 10 and seal between the channel 3 and the glass run 10.
Furthermore, the front end of the vehicle interior cover lip 34 abuts on the stepped portion of the inner panel 2 d to improve the sealing performance between the inner panel 2 d and the glass run 10.

Low sliding members such as urethane resin and silicone resin are applied to the surfaces of the vehicle exterior seal lip 50 and the vehicle interior seal lip 60 where the door glass 5 abuts. For this reason, when the door glass 5 slides in the glass run 10, the sliding resistance can be reduced, and the glass run can be prevented from shifting.
Further, a low sliding member may be attached to 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.
The bottom wall 40 is coated with a low-sliding member such as urethane resin on the inner surface 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. 4, the door frame 2 is provided with a channel 3 for mounting the glass run 10 between the door frames 2 in the straight portion, but the channel 3 does not exist in the corner portion 2b, and the outer frame Only the panel 2c and the inner panel 2d are present. The glass run 10 is directly assembled to the outer panel 2c and the inner panel 2d. The corner portion of the outer panel 2c is provided with a notch 2f at a part of the tip portion.

As shown in FIG. 2, the corner 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 is formed in a shape along the corner portion 2 b of the door frame 2. Therefore, it is formed by molding. The cross-sectional shape of the corner portion 12 of the glass run 10 is substantially the same as the cross-sectional shape of the straight portion 11, but the portion corresponding to the notch 2f is different from the other portions as shown in FIG.
Further, in the cross section at the corner portion 12 of the glass run 10, as shown in FIG. 2, the cross section is formed in a substantially U-shaped cross section from the vehicle outer side wall 20, the vehicle inner side wall 30, and the bottom wall 40. The connection is made by continuously changing the difference in cross-sectional shape between the upper side and the vertical side at the corner.

  Further, in accordance with the cross-sectional shapes of the upper side portion and the vertical side portion, the vehicle outer side seal lip 50 is extended from the vicinity of the tip of the vehicle outer side wall 20 toward the inside of the substantially U-shaped cross section. Further, the vehicle outer side cover lip 24 extends from the front end of the vehicle outer side wall 20 along the vehicle outer surface toward the bottom wall 40. 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 a vehicle interior cover lip 34 extends from the front end of the vehicle interior side wall 30 along the outer surface thereof. It extends in the direction of the bottom wall 40. Similarly to the above, the seal lip and the cover lip are connected by continuously changing the shape difference between the upper side portion and the vertical side portion at the corner portion. Note that reference numeral 41 in FIG. 2 denotes a protrusion for preventing a shift of the glass run 10 provided on the bottom wall 40.

  In the corner portion 12 of the glass run 10, a portion corresponding to the notch portion 2 f of the door frame 2 is provided with a side wall lower portion 20 b of the vehicle outer side wall 20 as shown in FIG. 1. The side wall low portion 20b has a low height and is substantially the same height as the flange portion of the cutout portion 2f of the outer panel 2c. A vehicle outer side cover lip 24 having a substantially L-shaped cross section extends from the front end of the side wall low portion 20b. A groove portion is formed by the vehicle outer side cover lip 24 extending from the front end of the side wall low portion 20b and the side wall low portion 20b, and the notch portion 2f of the outer panel 2c is inserted into the groove portion. For this reason, the front-end | tip of the notch part 2f can enter to the back of a groove part. Thereby, the mounting of the corner portion 12 of the glass run 10 can be positioned, and the side wall low portion 20b can be sandwiched by one side portion of the tip having an L-shaped cross section.

  Since the side wall low portion 20b is low in height, the width of the vehicle outer cover lip 24 can be substantially reduced. When the vehicle outer cover lip 24 is attached to the corner portion 2b, the tip of the vehicle outer cover lip 24 is formed. Is not pulled, and the vehicle outer side cover lip 24 is not lifted from the outer panel 2c or abnormally deformed.

A vehicle outer side seal lip 50 extends in the direction opposite to the tip of the vehicle outer side cover lip 24 from the vehicle outer side end of the bent portion of the vehicle outer side cover lip 24 bent in a substantially L-shaped cross section. The vehicle exterior seal lip 50 is formed with a curved cross section, and its tip is formed toward the inside of the glass run 10 having a substantially U-shaped cross section. The apex of the height of the curved outer seal lip 50 from the bottom wall 40 is the same height as the vehicle outer side wall 20 other than the side wall low portion 20b. For this reason, the position of the vehicle outer side seal lip 50 can be made to be the same height as the seal lip provided on the vehicle outer side wall 20 other than the side wall low portion 20b. The position which contacts the outer side surface can be made the same, and the sealing property between the door glass 5 can be ensured.
Further, even in a side view, the portion from the top of the vehicle outer side cover lip 50 to the tip of the vehicle outer side cover lip 24 is the same as the width of the vehicle outer side cover lip 24 in other portions, so that a continuous design surface can be obtained. Can do.

When attaching the glass run 10 to the door frame 2, first, the corner portion 12 of the glass run 10 is attached to the corner portion 2 b of the door frame 2. At that time, the glass run 10 can be positioned by fitting the side wall low portion 20b of the glass run 10 into the notch 2f of the door frame 2 and the vehicle outer side cover lip 24. Thereafter, the glass run 10 can be mounted by inserting the straight portion 11 of the glass run 10 into the channel 3.
Since the holding rib 24b is provided on the inner surface of the outside cover lip 24 extending from the low side wall portion 20b, the contact area with the outer panel 2c can be reduced by the holding rib 24b and the outer panel 2c can be smoothly inserted. The tip of the outer panel 2c can be reliably held.
Further, by providing the holding lip 24b, the rigidity of the vehicle outer side cover lip 24 can be increased, so that the thickness thereof can be reduced. As a result, the occurrence of sink marks can be suppressed.

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.
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 straight part 11 manufactured as described above into a predetermined dimension, and molding the end part of the cut extrusion part. The part is sandwiched between molds to be molded, and a solid material for forming the molded part is injected into the cavity of the mold. 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. 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 in the corner part of the door frame 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 fragmentary top view of the corner part of the glass run which is embodiment of this invention. It is sectional drawing in the upper side part of the door frame 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 perspective view of the corner part of the door frame in embodiment of this invention. It is a side view of a motor vehicle 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 conventional door frame. It is a perspective view of the corner part of the conventional glass run.

Explanation of symbols

2 Door frame 2b Corner part 2f Notch part 5 Door glass 10 Glass run 11 Straight part 12 Corner part 20 Car side wall 20b Side wall lower part 24 Car outer side cover lip 30 Car inner side wall 40 Bottom wall 50 Car outer side seal lip 60 Car inner side seal lip

Claims (4)

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. The vehicle outer side seal lip and the vehicle inner side seal lip are provided, 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, and Extending the vehicle outer cover lip and the vehicle inner cover lip along the respective outer surfaces from the tip of the inner side wall toward the connecting direction with the bottom wall,
In the corner portion of the door frame, the end portions of the outer panel and the inner panel of the door frame are inserted between the vehicle outer side wall and the vehicle outer cover lip and between the vehicle inner side wall and the vehicle inner cover lip, respectively. holds the corner portion of the run, a notch is provided in a portion of the distal end portion of the outer panel of the corner portion of the door frame,
In the corner portion of the glass run, provided with a side wall lower portion which is lowered as the height from the bottom wall of the exterior side wall portion corresponding to said notch of said wheel outer sidewall corresponds to the notch,
A vehicle outer side cover lip having an L-shaped cross section is provided from the front end of the lower side wall portion to the outside, and the front end of the cover lip extends and curves in a direction opposite to the front end of the cover lip from the bent portion of the L-shaped cross section. The automotive lip is formed with a seal lip facing the inside of the substantially U-shaped cross section, and the apex of the height of the curved seal lip from the bottom wall is the same height as the vehicle outer side wall other than the lower side wall portion Glass run. 2. The automotive glass run according to claim 1, wherein a part of the notch at the front end of the panel is provided in the outer panel on the outer side of the vehicle, and the lower side wall is provided on the outer side wall of the vehicle. The glass run for automobiles according to claim 1 or 2 , wherein a holding rib is provided on an inner surface of a cover lip extending from the lower side wall portion. The corner portion of the glass run, automotive glass run according to any one of the olefinic thermoplastic claim formed of an elastomer 1 to claim 3.

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