Patent Publication Number: US-2013232881-A1

Title: Glass run

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is related to and claims priority from Japanese patent Application No. 2012-052685 incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a glass run adapted to be attached to a door frame of a motor vehicle for providing a seal between a door opening portion and a vehicle door. 
     2. Description of Related Art 
     In order to effect a seal between a door opening portion and a vehicle door having a door sash, in one example of conventional seal structures, an opening trim weather strip is attached to a flange provided in the door opening portion, and a door weather strip is attached to an outer periphery of the door sash. When the vehicle door is closed, a tubular seal portion of the opening trim weather strip contacts a protrusion of the door sash, and a tubular seal portion and a seal lip of the door weather strip contact an outer panel of the door opening portion to seal a gap between the door opening portion and the vehicle door. 
     And a door glass provided in an interior of the vehicle door is held with a glass run of which an outer periphery thereof is attached along an inner periphery of the door sash, and is raised and lowered in a groove of the glass run, which has a generally U-shaped cross-section. This glass run effects a seal between the door glass and the door sash. 
     In side surfaces of the motor vehicle, the glass run, the door sash, and a center pillar are exposed around the door glass so that it has been required to improve the design thereof. In addition, glass runs exist between the door sash and the door glass, and between the center pillar and the door glass so as to define a gap between the door sash and the door glass, which is less preferable in design. 
     In order to overcome the above-described problem, as shown in  FIG. 1 , in a sashless door-type vehicle body, an exterior part of a door sash is removed except for a flange so as to freely raise and lower a door glass  10  above the door belt line of a vehicle door  12 . With this arrangement, in the side surface of the motor vehicle, only the door glass  10  is visible above the door belt line of the vehicle door  12 . 
     In this case, as shown in  FIG. 2 , a glass run  14  includes a glass run section  16  adapted to effect a seal between the door glass  10  and a door frame  18 , and a trim section  20  adapted to attach the glass run  14  to a flange  22  extending along an end edge of the door frame  18  (see Japanese patent application laid-open No. 2002-46476, for example). The glass run section  16  has a main body with a generally U-shaped cross-section, which includes an outer side wall  24 , an inner side wall  26  and a bottom wall  28 . An outer seal lip  30  and an inner seal lip  32  respectively extend from ends of the outer side wall  24  and the inner side wall  26  obliquely in an interior space of the main body. The outer seal lip  30  and the inner seal lip  32  effect a seal against the door glass  10 . 
     The trim section  20  has a generally U-shaped cross-section, and includes a side wall  34  formed integrally with the bottom wall  28  of the glass run section  16 , a side wall  36  formed on the side of a vehicle body, and a bottom wall  38 . An outer seal lip  40  and an inner seal lip  42  are formed in an exterior surface of the side wall  36  for contacting and sealing a door opening portion  44  when the vehicle door  12  is closed. 
     And, as shown in  FIG. 3 , in order to improve the appearance of the door frame  18 , in a corner part  46  of a glass run  48 , an outer side wall  50  along with a bottom wall  52  of a trim section  54  are extended in an extension direction of an upper side portion  56  (see Japanese patent application laid-open No. 2010-18130, for example). 
     In this case, in order to join the upper side portion  56  to a rear vertical side portion  58 , it has been required to cut an end of a side wall  60  on the side of a vehicle body along with an inner seal lip  62  of the trim section  54  except for an outer seal lip  64  of the trim section  54 , and then form the inner seal lip  62  upon molding the corner part  46 . 
     However, when the corner part  46  thus molded is removed from the mold, there may occur the problem that the molded inner seal lip  62  of the trim section  54  is caught in the mold so that it becomes difficult to remove the corner part  46  from the mold. 
     In addition, since the corner part  46  is formed by molding, it is difficult to use a hard material for the corner part  46 , thereby degrading the rigidity thereof, and therefore, it has been required to prevent the glass run  48  from coming off the door frame  18  and a garnish secured thereto. 
     SUMMARY OF THE INVENTION 
     It is an object of the present invention to provide a glass run for use in a sashless door-type motor vehicle, which can be readily produced and securely attached without coming off a door frame, etc. 
     In order to achieve the above-described object, according to a first aspect of the present invention, in a glass run adapted to be attached to a door frame of a vehicle door for providing a seal between a door opening portion and the vehicle door, the glass run has an upper side portion formed by extrusion and adapted to be attached to an upper side of the door frame, a vertical side portion formed by extrusion and adapted to be attached to a vertical side of the door frame, and a corner portion formed by molding to join the upper side portion and the vertical side portion to each other, and adapted to be attached to a corner of the door frame. 
     The upper side portion includes a glass run section adapted to seal a door glass, and a trim section adapted to be attached to the door frame, which are integrally formed with each other. 
     The glass run section includes an outer side wall, an inner side wall and a bottom wall with a generally U-shaped cross-section, and an outer seal lip and an inner seal lip respectively extend from ends of the outer side wall and the inner side wall obliquely in an interior space of the glass run section with a generally U-shaped cross-section. 
     The trim section includes one side wall located on the side of the glass run section, the other side wall located on the side of a vehicle body, and a bottom wall with a generally U-shaped cross-section, and an outer seal lip and an inner seal lip are formed in the other side wall located on the side of the vehicle body for contacting a door opening portion. 
     The corner portion includes a corner joining section adapted to join the upper side portion to the vertical side portion, and a corner engaging section extending from the corner joining section for engagement with the door frame. The corner joining section extends from the upper side portion such that at least one part of the glass run section is cut off along with the inner seal lip of the trim section, an inner seal lip is formed in an area corresponding to the cut inner seal lip by molding so as to be gradually tapered towards an end thereof, and an engaging protrusion adapted to be engaged with an end of the door frame is provided near an end of the corner engaging section. 
     With the arrangement of the first aspect of the present invention, the upper side portion includes a glass run section adapted to seal a door glass, and a trim section adapted to be attached to the door frame, which are integrally formed with each other. Therefore, the glass run section and the trim section can be simultaneously obtained by extrusion, thereby facilitating the production thereof. In addition, the entire dimensions of the glass run section and the trim section can be decreased, thereby making the arrangement around the upper side of the vehicle door simple, whereby the external appearance can be improved. 
     The glass run section includes an outer side wall, an inner side wall and a bottom wall with a generally U-shaped cross-section, and an outer seal lip and an inner seal lip respectively extend from ends of the outer side wall and the inner side wall obliquely in an interior space of the glass run section with a generally U-shaped cross-section. As a result, the glass run section can guide the raising and the lowering of the door glass, and the outer seal lip and the inner seal lip can hold the door glass, and seal a periphery thereof. 
     The trim section includes a side wall located on the side of the glass run section, a side wall located on the side of a vehicle body, and a bottom wall with a generally U-shaped cross-section, and an outer seal lip and an inner seal lip are formed in the side wall located on the side of the vehicle body for contacting the door opening portion. As a result, the glass run can be attached while holding an end of the door frame with the side walls and the bottom wall of the trim section, whereby when the door glass is raised or lowered, the glass run section can securely seal the door glass. 
     When the vehicle door is closed, the outer seal lip and the inner seal lip of the trim section contact the door opening portion to effect a seal between the vehicle door and the door opening portion. 
     The corner portion includes a corner joining section adapted to join the upper side portion to the vertical side portion, and a corner engaging section extending from the corner joining section for engagement with the door frame. Therefore, upon molding the corner portion, the upper side portion and the vertical side portion can be bonded through vulcanization in the corner joining section. In addition, the corner engaging section can attach the corner portion to the door frame, thereby preventing the corner portion from coming off the door frame. 
     The corner joining section is extended from the upper side portion, and is formed such that at least one part of the glass run section and the inner seal lip of the trim section are cut off. Therefore, the bottom wall of the trim section and the outer side wall of the glass run section, which are extended from the upper side portion, can be integrally extended to an end of the upper side of the corner portion, whereby the appearance of the corner portion can be improved to its end, and the corner joining section can join the upper side portion and the vertical side portion, each having a different cross-sectional shape. 
     An inner seal lip is formed in an area corresponding to the cut inner seal lip of the trim section by molding so as to be gradually tapered towards an end thereof. Therefore, after molding the corner portion, the inner seal lip of the corner portion can be readily removed from the mold while maintaining sealing properties of the corner portion. 
     Since the engaging protrusion adapted to be engaged with an end of the door frame is provided near an end of the corner engaging section, an end of the door frame or a garnish attached to the door frame can be engaged with the engaging protrusion, thereby preventing the corner portion of the glass run from coming off the corner of the door frame, and ensuring sealing properties thereof. 
     According to a second aspect of the present invention, the engaging protrusion is engaged with an end of a garnish attached to the vertical side of the door frame. 
     Since the engaging protrusion is engaged with the end of the garnish attached to the vertical side of the door frame, the vertical side of the door frame can be covered with the garnish, and a gap between the garnish and the glass run can be decreased, whereby the corner portion of the glass run can be securely engaged with the corner of the door frame. 
     According to a third aspect of the present invention, the corner engaging section extends from the upper side portion such that the inner side wall, the bottom wall and the inner seal lip of the glass run section are cut off along with a half of the side wall of the trim section, which is located on the side of the vehicle body, and the inner seal lip of the trim section. 
     Since the corner engaging section extends from the upper side portion such that the inner side wall, the bottom wall and the inner seal lip of the glass run section are cut off, the dimensions of the corner engaging section can be decreased, thereby facilitating the attachment to the end of the door frame and enabling the formation of the engaging protrusion in the corner engaging section by molding, and since the glass run of the rear vertical side portion and the glass run section of the upper side portion are bonded to each other, the corner portion can be formed such that the configuration of the glass run is gradually changed therein. 
     Since the half of the side wall of the trim section, which is located on the side of the vehicle body, and the inner seal lip of the trim section are cut off, the dimensions of the trim section in the corner portion can be decreased to decrease the dimensions of the end of the door frame, thereby reducing a gap between the door opening portion and the vehicle door. 
     According to a fourth aspect of the present invention, the engaging protrusion extends from the upper side portion, is formed on a rear surface of the bottom wall of the trim section or the outer side wall of the glass run section so as to have a U-shaped cross-section, and includes a first projection that is joined to the bottom wall of the trim section to define one of walls of the engaging protrusion, a bottom part defining a bottom thereof, and a second projection defining the other wall of the engaging protrusion. An end of the door frame is engaged in the second projection. 
     With the arrangement of the fourth aspect of the present invention, the engaging protrusion extends from the upper side portion, is formed on a rear surface of the bottom wall of the trim section or the outer side wall of the glass run section so as to have a U-shaped cross-section, and includes a first projection that is joined to the bottom wall of the trim section to define one of walls of the engaging protrusion, a bottom part defining a bottom thereof, and a second projection defining the other wall of the engaging protrusion, and an end of the door frame is engaged in the second projection. Therefore, the end of the door frame or the garnish is securely engaged in the interior of the engaging protrusion, whereby a gap between the bottom wall of the trim section or the outer side wall of the glass run section, which extends from the upper side portion, can be decreased. 
     According to a fifth aspect of the present invention, an engaging lip adapted to be engaged with the door frame is provided along an end of the side wall of the trim section, which is located on the side of the vehicle body. 
     With the arrangement of the fifth aspect of the present invention, since an engaging lip adapted to be engaged with the door frame is provided along an end of the side wall of the trim section, which is located on the side of the vehicle body, the engaging lip is engaged with a root of a flange of the door frame when the glass run is attached to the door frame, whereby the trim section can be prevented from coming off the flange of the door frame. 
     According to a sixth aspect of the present invention, the corner portion of the glass run is a rear corner portion adapted to be attached to a rear corner of the door frame of a front door, and the vertical side portion of the glass run is a rear vertical side portion adapted to be attached to a rear vertical side of the door frame of the front door. 
     With the arrangement of the sixth aspect of the present invention, the corner portion of the glass run is a rear corner portion adapted to be attached to a rear corner of the door frame of a front door, and the vertical side portion of the glass run is a rear vertical side portion adapted to be attached to a rear vertical side of the door frame of the front door. Therefore, there can be obtained the glass run that is prevented from coming off the rear corner of the door frame of the front door. 
     According to a seventh aspect of the present invention, the side wall of the trim section, which is located on the side of the glass run section, and the bottom wall of the glass run section define an integral wall. 
     With the arrangement of the seventh aspect of the present invention, since the side wall of the trim section, which is located on the side of the glass run section, and the bottom wall of the glass run section define an integral wall, the entire thickness of two walls can be decreased, thereby reducing the weight of the glass run. In addition, the dimensions of the glass run can be decreased. 
     According to an eighth aspect of the present invention, a decoration member is provided on exterior surfaces of the bottom wall of the trim section and the outer side wall of the glass run section continuously with the upper side portion. 
     With the arrangement of the eighth aspect of the present invention, since a decoration member is provided on exterior surfaces of the bottom wall of the trim section and the outer side wall of the glass run section continuously with the upper side portion, the appearance around the upper side of the door frame can be improved. 
     The corner joining section is extended from the upper side portion such that at least one part of the glass run section is cut off along with the inner seal lip of the trim section. Therefore, the bottom wall of the trim section and the outer side wall of the glass run section, which are extended from the upper side portion, can be integrally extended to an end of the upper side of the corner portion, whereby the appearance of the corner portion can be improved to its end. 
     An inner seal lip is formed in an area of the corner joining section, which corresponds to the cut inner seal lip of the trim section, by molding so as to be gradually tapered towards an end thereof. Therefore, after the molding of the corner portion, the inner seal lip of the corner portion can be readily removed from the mold. 
     Since the engaging protrusion adapted to be engaged with an end of the door frame is provided near an end of the corner engaging section, an end of the door frame or a garnish attached to the door frame can be engaged with the engaging protrusion, thereby preventing the corner portion of the glass run from coming off the corner of the door frame. 
     Other objects, features, and characteristics of the present invention will become apparent upon the consideration of the following description and the appended claims with reference to the accompanying drawings, all of which form a part of this specification. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a side view of a motor vehicle; 
         FIG. 2  is a cross-sectional view of a conventional glass run; 
         FIG. 3  is a cross-sectional view of another conventional glass run; 
         FIG. 4  is a front view of a glass run in one embodiment of the present invention; 
         FIG. 5  is a cross-sectional view of an upper side portion in one embodiment of a glass run in accordance with the present invention, which is taken along line B-B of  FIG. 6 ; 
         FIG. 6  is a rear view of a corner portion in one embodiment of a glass run in accordance with the present invention; 
         FIG. 7  is a front view of a corner portion in one embodiment of a glass run in accordance with the present invention; 
         FIG. 8(   a ) is a plan view of an upper side portion of a glass run, of which one end defining the corner portion is cut off, in one embodiment of the present invention; 
         FIG. 8(   b ) is a rear view of an upper side portion of a glass run, of which one end defining the corner portion is cut off, in one embodiment of the present invention; 
         FIG. 9(   a ) is a cross-sectional view of an upper side portion of a glass run, of which one end defining the corner portion is cut off, in one embodiment of the present invention, which is taken along line C-C of  FIG. 8(   b ); 
         FIG. 9(   b ) is a cross-sectional view of an upper side portion of a glass run, of which one end defining the corner portion is cut off, in one embodiment of the present invention, which is taken along line D-D of  FIG. 8(   b ); and 
         FIG. 10  is a cross-sectional view of a corner engaging section in a corner portion in one embodiment of a glass run in accordance with the present invention, which is taken along line A-A of  FIG. 6 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     One embodiment of the present invention will be explained with reference to  FIG. 1 , and  FIG. 4  through  FIG. 10 . 
       FIG. 1  is a side view of a motor vehicle. As shown in  FIG. 1 , a glass run  66  in accordance with the present invention is used in a sashless door-type motor vehicle. An exterior part of the door sash is removed above the door belt line of a front door and a rear door of the motor vehicle, and only door glasses  10  are visible in an exterior side of the motor vehicle. The door glasses  10  slide inwardly and outwardly of the front door and the rear door of the motor vehicle. 
     As shown in  FIG. 4 , the glass run  66  includes an upper side portion  68  for attachment to an upper side of a door frame  18 , a front vertical side portion  70  for attachment to a front vertical side of the door frame  18 , a rear vertical side portion  72  for attachment to a rear vertical side of the door frame  18 , a front corner portion  74  adapted to join the upper side portion  68  to the front vertical side portion  70  for attachment to a front corner of the door fame  18 , and a rear corner portion  76  adapted to join the upper side portion  68  to the rear vertical side portion  72  for attachment to a rear corner of the door fame  18 . With this arrangement, not only the upper side of the door frame  18  but also vertical sides of the door frame  18 , which are along vertical edges of the door glass  10 , are held and sealed with the glass run  66 . In addition, the corners of the door frame  18  can be securely sealed with the front corner portion  74  and the rear corner portion  76 . 
     The upper side portion  68 , the front vertical side portion  70  and the rear vertical side portion  72  are respectively formed by extrusion, and are respectively cut to a predetermined length. The front corner portion  74  and the rear corner portion  76  are formed by molding. Upon molding, the front corner portion  74  joins the upper side portion  68  to the front vertical side portion  70 , whereas the rear corner portion  76  joins the upper side portion  68  to the rear vertical side portion  72 , by vulcanized adhesion. 
     The present invention relates to the glass run  66  adapted to be attached to the door frame  18 , and more particularly, to a part of the rear corner portion  76  on the side of the upper side portion  68 . The present invention will be explained with reference to the rear corner portion  76  of a front door, and particularly, to the part of the rear corner portion  76  on the side of the upper side portion  68 , but can be also used in a front corner of a rear door. 
     First, the configuration of the upper side portion  68  will be explained, and next, the configurations of the rear corner portion  76  along with a cut area of the upper side portion  68  will be explained. 
     As shown in  FIG. 5 , the upper side portion  68  of the glass run  66  includes a glass run section  78  adapted to be attached along an inner periphery of the door frame  18  and a trim section  80  adapted to be attached to the flange  22  that is provided along an end of the door frame  18 . First, configurations of the glass run section  78  and the trim section  80  will be respectively explained. 
     The glass run section  78  has a main body with a generally U-shaped cross-section, which includes an outer side wall  82 , an inner side wall  84  and a bottom wall  86 . An outer seal lip  88  and an inner seal lip  90  respectively extend from ends of the outer side wall  82  and the inner side wall  84  obliquely in an interior space of the main body. Therefore, an end edge of the door glass  10  slides in the interior space of the main body of the glass run section  78 , which includes the outer side wall  82 , the inner side wall  84  and the bottom wall  86 , thereby holding and sealing the door glass  10 . 
     The glass run section  78  is composed of a soft material. It is preferable to use a thermoplastic olefin elastomer as the soft material. Since the soft material is used, the outer seal lip  88  and the inner seal lip  90  can flexibly bend. When the door glass  10  is raised, they can securely contact the end edge of the door glass  10  to provide a seal between the door glass  10  and the door frame  18 . 
     In the case where the thermoplastic olefin elastomer is used as the glass run section  78 , and an olefin synthetic resin is used as the trim section  80 , they are readily formed integrally, and recycling of the glass run is facilitated. Alternatively, thermoplastic olefin elastomer foams can be used. 
     It is preferable to increase the width and the thickness of the inner side wall  84  and the inner seal lip  90 , as compared with those of the outer side wall  82  and the outer seal lip  88 . In this case, when the door glass  10  is raised and inserted in the interior space of the glass run  66 , the door glass  10  can be shifted outwardly to reduce level difference in the exterior surface of the door  12 , thereby improving the appearance therearound, and restraining the generation of wind noises. 
     It is preferable to apply a low sliding member to surfaces of the outer seal lip  88  and the inner seal lip  90 , which are adapted to contact the door glass  10 . Examples of the low sliding member include TPV (olefin thermoplastic vulcanized elastomer) exhibiting low sliding properties, which is formed into a thin film thereon, or silicon paints, urethane paints, etc. are painted thereon. With this arrangement, the door glass can be raised and lowered smoothly, and the generation of wind noises can be prevented. 
     A bottom lip  92  can be formed on an interior side of the bottom wall  86  so as to project from a joint between the inner side wall  84  and the bottom wall  86 . When the door glass  10  is raised, the bottom lip  92  contacts an upper end edge of the door glass  10  to absorb shocks against the bottom wall  86 . It is preferable to apply a low sliding member to surfaces of the bottom lip  92 , too. 
     An attaching recess  94  is provided in an exterior surface of the inner side wall  84 . When the glass run  66  is attached to the door frame  18 , a protrusion provided in the door frame  18  is engaged with the attaching recess  94  to hold the inner side wall  84  of the glass run section  78 . 
     An inner cover lip  96  is formed along the end of the inner side wall  84  so as to extend outwardly of the interior space of the main body of the glass run section  78  and contact the protrusion of the door frame  18 . 
     Next, the trim section  80  will be explained. As shown in  FIG. 5 , the trim section  80  has a generally U-shaped cross-section, and includes a side wall  98  adapted to be joined to the bottom wall  86 , a side wall  100  for facing the door opening portion  44 , and a bottom wall  102 . The flange  22  of the door frame  18  is inserted into an interior space of the trim section  80 , and held therein, whereby the glass run  66  is attached to the door frame  18 . 
     An outer seal lip  104  and an inner seal lip  106  project from an exterior surface of the side wall  100  of the trim section  80 , which faces the door opening portion  44 . When the door  12  is closed, the outer seal lip  104  and the inner seal lip  106  contact the door opening portion  44  to provide a double seal between the door opening portion  44  and the door frame  18 . 
     A first holding lip  108  and a second holding lip  110  are formed in an interior surface of the side wall  100  of the trim section  80 , whereas a first holding ridge  112  and a second holding ridge  114  are formed in an interior surface of the side wall  98  of the trim section  80 . As shown in  FIG. 5 , when the flange  22  of the door frame  18  is inserted into the interior space of the trim section  80 , one side surface of the flange  22  can be held with the first holding lip  108  and the second holding lip  110 , whereas the other side surface of the flange  22  can be held with the first holding ridge  112  and the second holding ridge  114 . 
     An engaging lip  116  projects from an end of the side wall  100  of the trim section  80  inwardly. As shown in  FIG. 5 , when the flange  22  of the door frame  18  is inserted into the interior space of the trim section  80 , the engaging lip  116  contacts a bending base of the flange  22  to prevent the trim section  80  from coming off the flange  22 . 
     The trim section  80  is arranged such that the side wall  98  on the side of the glass run section  78 , the side wall  100  for facing the door opening portion  44 , the bottom wall  102 , the first holding ridge  112  and the second holding ridge  114  are composed of a hard material, whereas the outer seal lip  104 , the inner seal lip  106 , the first holding lip  108  and the second holding lip  110  are composed of a soft material. The trim section  80  is formed simultaneously with the glass run section  78  by extruding the hard material and the soft material. 
     As a result, the main body of the trim section  80  exhibits high rigidity so as to hold the flange  22  securely. The outer seal lip  104  and the inner seal lip  106  flexibly bend to conform to the configuration of the door opening portion  44  and contact the same to provide a seal thereagainst. And the first holding lip  108  and the second holding lip  110  flexibly contact the flange  22  to provide a seal thereagainst. 
     Next, the rear corner portion  76  will be explained. 
     The rear corner portion  76  includes a corner joining section  120  adapted to join the upper side portion  68  to the rear vertical side portion  72 , and a corner engaging section  122  adapted to extend from the corner joining section  120  rearwardly for engagement with a rear end of the door frame  18 . Therefore, upon molding the rear corner portion  76 , the upper side portion  68  and the rear vertical side portion  72  are simultaneously joined to each other through vulcanization with the corner joining section  120 . In addition, the corner engaging section  122  can attach the rear corner portion  76  to the rear end of the door frame  18 , thereby preventing the rear corner portion  76  from coming off the door frame  18 . 
     As shown in  FIGS. 6 and 7 , the corner joining section  120  joins the upper side portion  68  with an upper joint  124 , and joins the rear vertical portion  72  with a vertical joint  126 . 
     As shown in  FIGS. 8(   a ),  8 ( b ),  9 ( a ) and  9 ( b ), the upper side portion  68  is partly cut off at the upper joint  124 , and is extended towards an end of the corner engaging section  122 , thereby partly defining the rear corner portion  76 . Areas designated with two-dot chain lines in  FIGS. 9(   a ) and  9 ( b ) are cut off. 
     As shown in  FIG. 9(   a ), in a first cut part  128  of the rear corner portion  76 , which is near the upper side portion  68 , the inner side wall  84 , the inner seal lip  90  and the bottom lip  92  of the glass run section  78  are cut off. 
     And, as shown in  FIG. 9(   b ), in a second cut part  130  of the rear corner portion  76 , which is on a rear side of the first cut part  128 , the bottom wall  86  and the inner seal lip  88  of the glass run section  78  along with a half of the side wall  100  and the inner seal lip  106  of the trim portion  80  are further cut off 
     Therefore, the bottom wall  102  of the trim section  80  and the outer side wall  82  of the glass run section  78 , which are integrally provided with each other, can be extended to a rear end of the upper side of the rear corner portion  76  via an upper side extending portion  132 . There is no boundary line between exterior surfaces of the bottom wall  102  of the trim section  80  and the outer side wall  82  of the glass run section  78 , thereby providing an integral design surface, and consequently, an external appearance of the rear corner portion  76  can be improved to its rear end. 
     Furthermore, where a decoration molding  134  as a decoration member is bonded to the exterior surfaces of the bottom wall  102  of the trim section  80  and the outer side wall  82  of the glass run section  78 , the appearance around the upper side of the door frame  18  can be improved. 
     In addition, since the glass run section  78  is cut off, the vertical joint  126  of the corner joining section  120  can define a glass run section conforming to the cross-section of the rear vertical portion  72 , so as to be joined thereto. 
     As shown in  FIG. 6 , in the second cut part  130  of the rear corner portion  76 , the inner seal lip  106  of the trim portion  80  is formed by molding in a cut area of the corner joining section  120  so as to be tapered toward an end thereof. As a result, when the rear corner portion  76  thus molded is removed from the mold, the inner seal lip  106  of the trim portion  80  is prevented from being caught in the mold even if the outer seal lip  104  exists, and consequently, the rear corner portion  76  can be readily removed from the mold. 
     And as shown in  FIG. 6  and  FIG. 7 , the corner engaging section  122  is provided in the rear corner portion  76  rearwardly of the corner joining section  120 . The corner engaging section  122  is provided in the second cut part  130  of the upper side extending portion  132  that extends from the upper side portion  68 . An engaging protrusion  136  and an engaging end  138  adapted to be engaged with an end of the door frame  18  are provided near the rear end of the corner engaging section  122 . The engaging end  138  contacts a rear side end of the door frame  18 . 
     As shown in  FIG. 10 , the engaging protrusion  136  is formed on a rear surface of the bottom wall  102  of the trim section  80  so as to extend from the upper side portion  68  with a U-shaped cross-section. The engaging protrusion  136  has a first projection  140  that is joined to the bottom wall  102 , thereby defining one of walls of the U-shaped cross-section, and a bottom part  142  as a bottom thereof, and a second projection  144  as the other wall thereof. An end  146  of a garnish  148  secured to the door frame  18  is engaged with the second projection  144 . With this arrangement, the end of the door frame  18  or the end of the garnish  148  can be securely engaged in the U-shaped interior space of the engaging protrusion  136 , thereby preventing the rear corner portion  76  of the glass run  66  from coming off the corner of the door frame  18 . As a result, the sealing properties can be achieved. In addition, gaps between the door frame  18  or the garnish  148 , and the end of the glass run  66  can be reduced. 
     On the other hand, in the front corner part  74 , an engaging lip is formed at an end of the side wall  100  of the trim section  80  by molding. The engaging lip can be engaged in an end of the flange  22 , thereby preventing the corner engaging section  122  of the glass run  66  from coming off the door frame  18 . 
     Upon producing the glass run  66 , a thermoplastic elastomer or a soft synthetic resin is used as the soft members, which are composed of a solid material or a sponge material. Examples of the thermoplastic elastomer include an olefin elastomer, and examples of the soft synthetic resin include a soft vinyl chloride. And an olefin synthetic resin such as polypropylene resin, polyethylene resin, etc. is used as the hard members of the glass run  66 . 
     While the invention has been described in connection with what are considered to be the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.