Patent Publication Number: US-2012023831-A1

Title: Weather strip and assembly structure thereof

Description:
This application claims the benefit under 35 USC 119 of JP Patent Application JP2010-168272 filed Jul. 27, 2010, the entire disclosure of which is incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     The present invention relates to: weather strips installed on a door sash of an automobile, which make elastic contact with a door opening edge of a body panel to seal a space between the body panel and the door sash; and assembly structure of the weather strips. 
     As shown in  FIG. 6  and  FIG. 7 , a weather strip  10  is assembled on a door sash  2  of an automobile door I, which makes elastic contact with a door opening edge of a body panel  3  to seal a space between the door sash  2  and the body panel  3 . 
     As shown in  FIG. 7 , the weather strip  10  comprises: an assembly part  11  assembled on an outer peripheral side of an outer peripheral part  2 A of the door sash  2  of an automobile; and a hollow seal member  12  and a tongue-shaped outer lip  13  integrally molded with an inner-cabin side and an outer-cabin side of the assembly part  11  respectively, which make elastic contact with an inner-cabin side and an outer-cabin side of a door opening edge of a body panel  3  respectively when the door  1  is closed. 
     An inner peripheral part  2 B of the door sash  2  also has a glass nm  20  installed thereon, comprising: a cross-section roughly U-shaped installation base member  21 ; and an outer-cabin side lip  22  and an inner-cabin side lip  23  integrally molded with both ends of the installation base member  21 , which are slidably brought into contact with an outer-cabin side and an inner-cabin side of a door glass  4  that lifts and lowers. 
     The assembly part  11  of the weather strip  10  is assembled between an anchoring part  5 X on an outer-cabin side and an anchoring part  5 Y on an inner-cabin side, which are provided on the outer peripheral side of the outer peripheral part  2 A of the door sash  2 . The anchoring part  5 X on the outer-cabin side and the anchoring part  5 Y on the inner-cabin side can be formed by bending the door sash  2  but are formed on an outer-cabin side and an inner-cabin side of a retainer part  5   b  of a roughly T-shaped molding member  5  comprising a molding part  5   a  and a retainer part  5   b . The molding member  5  is installed on the door sash  2  by a rivet  6 . 
     The hollow seal member  12  is subjected to lap setting shown in  FIG. 7(   b ) after assembly of the weather strip  10 , in which the hollow seal member  12  is pressed against an outer surface of a garnish  7  provided on an inner-cabin side of the door sash  2  to prevent occurrence of an aperture therebetween. In another word, in  FIG. 7(   a ) without the garnish  7  ( FIG. 7(   a ) shows the garnish  7  in an imaginary line (two-dot chain lines)), the hollow seal member  12  is arranged on the door sash  2  side compared with a position on which surface of the garnish  7  is going to be provided and overlaps with the garnish  7 . 
     In addition, the Japanese unexamined Patent Publication No. 2007-223484 discloses a weather strip  30  shown in  FIG. 8 , of which the hollow seal member  32  is directly subjected to the lap setting relative to the door sash  2  if the garnish  7  is not installed on the inner-cabin side of the door sash  2 . In another word, in  FIG. 8  without the door sash  2  ( FIG. 8  shows the door sash  2  in an imaginary line (two-dot chain lines)), the hollow seal member  32  is arranged on an inner position on an inner-peripheral side compared with a position on which the door sash  2  is going to be provided. 
     However, the weather strip  10  according to the prior art shown in  FIG. 7  has the structure that the hollow seal member  12  is subjected to the lap setting ( FIG. 7(   a )) and has one base root  12   a  and the other base root  12   b  integrally molded with an inner-cabin side surface and an outer surface on the inner-cabin side of the assembly part  11  respectively while both of the base roots  12   a ,  12   b  are spaced out from each other. Accordingly, when the weather strip  10  is assembled on the door sash  2  ( FIG. 7(   b )), an outer-cabin side wall part (part  130 ) of the hollow seal member  12  which rises from the assembly part  11  toward the body panel  3  side that is the outer peripheral side of the door sash  2  shrinks and generates wrinkles while the inner-peripheral side wall part (part  140 ) of the hollow seal member  12  which is from the assembly part  11  toward the garnish  7  side is extended. As a result, there has remained a problem that the resultant hollow seal member  12  is deformed compared with a prescribed shape. 
     Deformation of the hollow seal member  12  may result in decrease in sealing property. 
     The weather strip  30  according to the prior art shown in  FIG. 8  has the structure that the hollow seal member  32  is connected to the assembly part  31  by a singular pillar part  34 . The hollow seal member  32  is seamless and annular in cross section. Accordingly, even in case the hollow seal member  32  is subjected to the lap setting on the door sash  2 , the hollow seal member  32  as a whole rotates toward the outer-cabin side (clockwise direction in  FIG. 8 ) around a connecting position between the pillar part  34  and the assembly part  31  when the weather strip  30  is assembled on the door sash  2 . The resultant rotation of the hollow seal member  32  as a whole does not cause partial deformation of the hollow seal member  32  shown in  FIG. 7  including partial shrinkage and extension. 
     However, the singular pillar part  34  that connects the hollow seal member  32  to the assembly part  31  linearly extends from the outer-cabin side to the inner-cabin side, which is a vertical direction relative to the surface of the door  1 . Accordingly, it is difficult to sufficiently swell the hollow seal member  32  in the direction in which the hollow seal member  32  rises from the pillar part  34  toward the body panel  3  side that is the outer peripheral side of the door sash  2 . 
     In addition, the weather strip  10  and  30  shown in  FIGS. 7 and 8  has the outer lip  13 ,  33  which rises from the assembly part  11 ,  31  fit between the anchoring part  5 X on the outer-cabin side and the anchoring part  5 Y on the inner-cabin side toward the body panel  3  side that is the outer peripheral side of the door sash  2 . When the outer lip  13 ,  33  is subjected to external pressure  70  from the outer-cabin side toward the inner-cabin side while the automobile is moving, the assembly part  11 ,  31  rotates around a top end  80  of the anchoring part  5 Y on the inner-cabin side which abuts the assembly part  11 ,  31  toward the inner-cabin side. There has also remained a problem that a protruding end  11   a ,  31   a  on the outer-cabin side of the assembly part  11 ,  31  floats toward the body panel  3  side for the effect of the rotation and easily comes off from the anchoring part  5 X on the outer-cabin side. 
     As shown in  FIG. 9 , countermeasures to the problems include: swelling the assembly part  11  and forming a hollow part  15 ; and raising anchoring degree of the anchoring part  5 X on the outer-cabin side relative to the assembly part  11 . But forming the hollow part  15  decreases rigidity whereas raising the anchoring degree deteriorates operability because fitting the assembly part  11  requires force to some extent. Also, manufacturing such a weather strip  10  is difficult. 
     Therefore, an object of the present invention is to provide weather strips and assembly structure thereof, capable of maintaining shape of the hollow seal member after the assembly. 
     Another object of the present invention is to provide weather strips and assembly structure thereof, prevented from coming off after the assembly. 
     SUMMARY OF THE INVENTION 
     In order to achieve the above-mentioned object, according to one aspect of the invention a weather strip is provided, comprising: an assembly part ( 51 ) assembled between an anchoring part ( 5 X) on an outer-cabin side and an anchoring part ( 5 Y) on an inner-cabin side which are provided on an outer peripheral side of an outer peripheral part ( 2 A) of a door sash ( 2 ) of an automobile; and a hollow seal member ( 52 ) and an outer lip ( 53 ) integrally molded with an inner-cabin side and an outer-cabin side of said assembly part ( 51 ) respectively, which make elastic contact with an inner-cabin side and an outer-cabin side of a door ( 1 ) opening edge of a body panel ( 3 ) respectively, wherein: a singular pillar part ( 54 ) connects said assembly part ( 51 ) with said hollow seal member ( 52 ); and said pillar part ( 54 ) comprises curved parts ( 54   a ,  54   b ). 
     In addition, according to an aspect of the present invention, the curved part of said pillar part ( 54 ) comprises an outer peripheral surface ( 54 AM) of an arc which faces said door sash ( 2 ) side. In addition, according to an aspect of the present invention, said singular pillar part ( 54 ) is cross-section roughly S-shaped that connects the curved part ( 54   b ) with the assembly part ( 51 ) side of the curved part ( 54   a ); an outer peripheral surface ( 54 BM) of an arc of the curved part ( 54   b ) faces an opposite side from said door sash ( 2 ) side while an outer peripheral surface ( 54 AM) of an arc of the curved part ( 54   a ) faces said door sash ( 2 ) side. 
     In addition, according to an aspect of the present invention, an anchoring part ( 5 Y) on the inner-cabin side, provided on said door sash ( 2 ), has a top end thereof extended in such a manner as to touch a connecting position between said singular pillar part ( 54 ) and said assembly part ( 51 ). 
     In addition, according to an aspect of the present invention, the connecting position between said singular pillar part ( 54 ) and said hollow seal member ( 52 ) is on said door sash ( 2 ) side compared with the top end of the anchoring part ( 5 Y) on the inner-cabin side provided on said door sash ( 2 ). 
     In addition, according to an aspect of the present invention, said anchoring part ( 5 Y) on the inner-cabin side comprises: a cross-section concave receiving part ( 5 Ya) which opens toward an outer-cabin side and in which a protruding end ( 51   b ) on an inner-cabin side formed on the assembly part ( 51 ) of said weather strip ( 50 ) is fit; and a rising part ( 5 Yb) bent from an outer peripheral side end of said receiving part ( 5 Ya) toward an inner-cabin side. 
     Symbols in parentheses show constituents or items corresponding to Figures and DESCRIPTION OF PREFERRED EMBODIMENT. 
     With the structure of the present invention, since the singular pillar part connects the assembly part with the hollow seal member, even in case the hollow seal member is subjected to the lap setting on the door sash, the garnish or the like, the hollow seal member as a whole rotates toward the outer-cabin side around the connecting position between the pillar part and the assembly part when the weather strip is assembled on the door sash. As a result, shape of the hollow seal member is maintained and does not deform. 
     Accordingly, the hollow seal member of the weather strip according to the structure of the present invention does not partially deform including a shrunk part and an extended part as the weather strip according to the prior art ( FIG. 7 ). Therefore, the weather strip according to the structure of the present invention is not degraded in the sealing function of filling up a space by elastic contact between the hollow seal member and the body panel when the door is closed. 
     In addition, the pillar part which connects the assembly part with the hollow seal member comprises the curved parts. Accordingly, in case the outer peripheral surface of the arc faces the door sash side as a structure of the invention, the connecting position between the pillar part and the hollow seal member is brought close to the door sash side compared with the pillar part according to the weather strip of the prior art ( FIG. 8 ) which linearly extends. As a result, it becomes possible to swell the hollow seal member sufficiently in the direction in which the hollow seal member rises from the pillar part toward the body panel side, thereby improving sealing property. In addition, in case the hollow seal member laps on the door sash or the garnish provided on the door sash on the position on the inner peripheral side compared with a linear line extending from the door sash having the assembly part assembled thereon toward the inner-cabin side, a linear pillar part widely separates the lap position from the assembly part toward the inner-cabin side whereas a pillar part swelled and curved toward the door sash side brings the lap position close to the assembly part. 
     The pillar part supports the hollow seal member as a whole when rotating the hollow seal member in the direction receding from the door sash side toward the outer-cabin side. Accordingly, in order to prevent deformation of the hollow seal member after assembly, the connecting position between the pillar part and the hollow seal member is preferably on a position on the hollow seal member that is close to the door sash side. 
     In addition, providing a protrusion for sealing (which may be made of the same or different material from that of the hollow seal member, of which an example is sponge material made of rubber having specific gravity of 0.1 to 0.4) between the hollow seal member and the door sash in a manner shown in  FIG. 1(   b ) prevents separation of the protrusion for sealing from the door sash. 
     In addition, the singular pillar part is cross-section roughly S-shaped that connects one curved part with the assembly part side of the other curved part; the outer peripheral surface of the arc of the one curved part faces the opposite side from the door sash side while the outer peripheral surface of the arc of the other curved part faces the door sash side. Such a structure shortens a distance between the hollow seal member and the assembly part in addition to the effect of the structure of the invention. 
     In addition, an anchoring part on the inner-cabin side, provided on the door sash which has an assembly part assembled thereon has a top end thereof extended in such a manner as to touch a connecting position between the singular pillar part and the assembly part. According to the structure, when the outer lip integrally molded with the assembly part is subjected to external pressure from the outer-cabin side toward the inner-cabin side, the assembly part rotates relative to the door sash around the top end of the extended anchoring part on the inner-cabin side. In another word, a central position of the rotation of the assembly part is a position on the outer peripheral side at a distance from the door sash so that a protruding end on the outer-cabin side of the assembly part is prevented from floating toward the body panel side and coming off from the anchoring part on the outer-cabin side. 
     Therefore, countermeasures such as swelling the assembly part and forming the hollow part or raising anchoring degree of the anchoring part on the outer-cabin side relative to the assembly part, disclosed in the prior art become unnecessary. 
     In addition, the connecting position between the singular pillar part and the hollow seal member is on the door sash side compared with the top end of the anchoring part on the inner-cabin side provided on the door sash. According to the structure, the connecting position between the pillar part and the hollow seal member is brought closer to the door sash side. As a result, it is possible to sufficiently swell the hollow seal member in the direction in which the hollow seal member rises from the pillar part toward the body panel side to improve the sealing property. 
     In addition, the anchoring part on the inner-cabin side comprises: a cross-section concave receiving pail which opens toward an outer-cabin side and in which a protruding end on all inner-cabin side formed on the assembly part of the weather strip is fit; and a rising part bent from an outer peripheral side end of the receiving part toward an inner-cabin side. Accordingly, the resultant assembly structure of the weather strip is simple in structure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS. 1(   a ) and  1 ( b ) are I-I line enlarged cross sections of  FIG. 6  showing assembly structure of a weather strip according to first embodiment of the present invention, of which  FIG. 1(   b ) has a protrusion for sealing additionally provided on  FIG. 1(   a ); 
         FIG. 2  is a cross section of  FIG. 1(   a ) of which the weather strip is deflected; 
         FIG. 3  is a I-I line enlarged cross section of  FIG. 6  showing assembly structure of a weather strip according to second embodiment of the present invention; 
         FIG. 4  is a I-I line enlarged cross section of  FIG. 6  showing assembly structure of a weather strip according to another embodiment of the present invention; 
         FIGS. 5(   a ) and  5 ( b ) are I-I line enlarged cross section of  FIG. 6  showing assembly structure of a weather strip according to still another embodiment of the present invention; 
         FIG. 6  is a lateral view of an automobile; 
         FIGS. 7(   a ) and  7 ( b ) are I-I line enlarged cross sections of  FIG. 6  showing assembly structure of a weather strip according to a prior art, of which  FIG. 7(   a ) shows a case without a garnish and  FIG. 7(   b ) shows a case with the garnish; 
         FIG. 8  is a I-I line enlarged cross section of  FIG. 6  showing assembly structure of a weather strip according to another prior art; and 
         FIG. 9  is a I-I line enlarged cross section of  FIG. 6  showing assembly structure of a weather strip according to still another prior art. 
     
    
    
     DESCRIPTION OF PREFERRED EMBODIMENT 
     First Embodiment 
     Referring to  FIG. 1  and  FIG. 2 , a weather strip  50  and assembly structure of the weather strip  50  according to the first embodiment of the present invention will be described.  FIG. 1  are I-I line enlarged cross sections of  FIG. 6  showing assembly structure of the weather strip  50  according to first embodiment of the present invention before making elastic contact with the body panel  3 .  FIG. 1(   b ) has a protrusion for sealing additionally provided on  1 ( a ).  FIG. 2  is a cross section of  FIG. 1(   a ) of which weather strip  50  shown in  FIG. 1(   a ) makes elastic contact with the body panel  3  and is deflected. When constituents or items correspond to those in prior arts, the same symbols are used. 
     As shown in  FIG. 1(   a ), a weather strip  50  according to the first embodiment of the present invention comprises: an assembly part  51  assembled on an outer peripheral side of an outer peripheral part  2 A of a door sash  2  of an automobile; and a hollow seal member  52  and an outer lip  53  integrally molded with an inner-cabin side and outer-cabin side of the assembly part  51  respectively, which make elastic contact with an inner-cabin side and an outer-cabin side of a door opening edge of a body panel  3  respectively when a door  1  is closed to seal a space between the body panel  3  and the door sash  2 . 
     An inner peripheral part  2 B of the door sash  2  also has a glass run  20  installed thereon, comprising: a cross-section roughly U-shaped installation base member  21 ; and an outer-cabin side lip  22  and an inner-cabin side lip  23  integrally molded with both ends of the installation base member  21 , which are slidably brought into contact with an outer-cabin side and an inner-cabin side of a door glass  4  that lifts and lowers. 
     The assembly part  51  of the weather strip  50  is assembled between the anchoring pail  5 X on the outer-cabin side and the anchoring part  5 Y on the inner-cabin side. Specifically, the assembly part  51  has a protruding edge  51   a  on an outer-cabin side formed on an outer-cabin side of a bottom side (door sash  2  side) thereof and a protruding edge  51   b  on an inner-cabin side formed on an inner-cabin side of the bottom side (door sash  2  side) thereof. The protruding edge  51   a  on the outer-cabin side is fit into the anchoring part  5 X on the outer-cabin side which is provided on an outer-peripheral side of an outer peripheral part  2 A of the door sash  2 , open toward an inner-cabin side and formed by curving a cross-section concave receiving part whereas the protruding edge  51   b  on the inner-cabin side is fit into the anchoring part  5 Y on the inner-cabin side which is provided on the outer-peripheral side of the outer peripheral part  2 A of the door sash  2 , open toward an outer-cabin side and formed by curving a cross-section concave receiving part. 
     The anchoring part  5 X on the outer-cabin side and the anchoring part  5 Y on the inner-cabin side may be formed by bending the door sash  2 . In the present embodiment, the anchoring part  5 X on the outer-cabin side and the anchoring part  5 Y on the inner-cabin side are respectively formed on the outer-cabin side and the inner-cabin side of the a retainer  5   b  of a cross section roughly T-shaped molding material  5  comprising a molding part  5   a  which is exposed to the outer-cabin side to decorate the door sash  2  and the retainer  5   b  which extends toward the inner-cabin side. The molding material  5  is installed on the door sash  2  by a rivet  6 . The molding member  5  is so called “luminous molding” of which molding part  5   a  is colored silver and mirro-surface finished, which gives sense of luxuriousness to the automobile by shining the automobile in silver color. 
     The hollow seal member  52  of the weather strip  50  is seamless and annular in cross section. The hollow seal member  52  is subjected to lap setting in which the hollow seal member  52  is pressed against an outer surface of a garnish  7  provided on an inner-cabin side of the door sash  2  to prevent occurrence of an aperture therebetween after assembly of the weather strip  50 . In another word, according to  FIG. 1  without the garnish  7 , which is shown by an imaginary line (two-dot chain lines), the hollow seal member  52  is arranged on the door sash  2  side compared with a position on which surface of the garnish  7  is going to be provided and overlaps with the garnish  7 . 
     An outer lip  53  of the weather strip  50  is tongue-shaped in cross section and is integrally molded with an outer-peripheral side of the assembly part  51  between the anchoring part  5 X on the outer-cabin side and the anchoring part  5 Y on the inner-cabin side. The outer lip  53  extends in such a manner as to rise from the assembly part  51  toward the body panel  3  side which faces the assembly part  51 . 
     A singular pillar part  54  connects the assembly part  51  with the hollow seal member  52 . The pillar part  54  comprises a curved part  54   a  which curves toward the door sash  2  side. The pillar part  54  has one end connected to a corner on an outer peripheral side spaced out from the door sash  2  which is on an inner-cabin side of the assembly part  51  and the other end connected to an inner peripheral side close to the door sash  2  which is on the outer-cabin side of the hollow seal member  52 . Specifically, the outer peripheral surface  54 AM of an arc between one end of the pillar part  54  which is connected to the assembly part  51  along the other end of the pillar part  54  on the hollow seal member  52  side faces (fronts) the door sash  2  side. 
     Formation of curved part  54   a  which curves toward the door sash  2  side generates a concave part between the hollow seal member  52  and the curved part  54   a . Width and depth in outer and inner cabin directions of the concave part is set to prevent the hollow seal member  52  from abutting the pillar part  54  side while the door  1  is closed and the hollow seal member  52  makes elastic contact with the body panel  3  as shown in  FIG. 2 . The curved part  54   a  may be swelled and curved toward the door sash  2  side. 
     The assembly part  51  of the weather strip  50  has a protruding end  51   b  formed on an inner-cabin side thereof. The protruding end  51   b  is fit in an anchoring part  5 Y on the inner-cabin side. A top end of the anchoring part  5 Y on the inner-cabin side which is an outer peripheral side end of the cross-section concave receiving part  5 Ya on the anchoring part  5 Y on the inner-cabin side has a rising part  5 Yb bent toward the inner-cabin side. The rising part  5 Yb is bent toward the inner-cabin side into a cross-section L-shape relative to the direction in which the anchoring part  5 Y on the inner-cabin side extends. The top end of the rising part  5 Yb touches a connecting position between the assembly part  51  and the pillar part  54  from an inner peripheral side. 
     The connecting part between the pillar part  54  and the hollow seal member  52  is positioned on the door sash  2  side compared with the top end of the rising part  5 Yb on the top end of the anchoring part  5 Y on the inner-cabin side. 
     According to the above-structured weather strip  50  of the present embodiment, since the singular pillar part  54  connects the assembly part  51  with the hollow seal member  52 , the pillar part  54  supports the hollow seal member  52  as a whole. 
     Accordingly, even in case the hollow seal member  52  is subjected to the lap setting on a garnish  7  provided on the door sash  2 , the hollow seal member  52  as a whole rotates toward the outer-cabin side (clockwise direction in  FIG. 1 ) around a connecting position  90  between the pillar part  54  and the assembly part  51  when the weather strip  50  is assembled on the door sash  2 . Therefore, shape of the hollow seal member  52  is maintained. 
     Such a structure prevents partial deformation of the hollow seal member  52  including partial shrinkage and extension, thereby preventing degradation in sealing function of filling up a space by elastic contact between the hollow seal member  52  and the body panel  3  when the door  1  is closed. 
     In addition, the singular pillar part  54  which connects the assembly part  51  with the hollow seal member  52  comprises the part  54   a  swelled and curved toward the door sash  2  side. Accordingly, the connecting position between the pillar part  54  and the hollow seal member  52  is brought close to the door sash  2  side. As a result, it becomes possible to swell the hollow seal member  52  sufficiently in the direction in which the hollow seal member  52  rises from the pillar part  54  toward the body panel  3  side, thereby improving sealing property. In addition, when the connecting position between the pillar part  54  and the hollow seal member  52  is brought close to the door sash  2  side, the lap position of the hollow seal member  52  on the garnish  7  on the door sash  2  is brought close to the assembly part  51 . 
     Further, since the connecting position between the pillar part  54  and the hollow seal member  52  is positioned on the hollow seal member  52  that is close to the door sash  2  side, the pillar part  54  supports the hollow seal member  52  as a whole from a lower side (door sash  2  side). Such a structure simplifies the rotation of the hollow seal member  52  toward the outer cabin side (clockwise direction in  FIG. 1 ). 
     According to the weather strip  50  of the present embodiment, the anchoring part  5 Y on the inner-cabin side, which is provided on the door sash  2  having the assembly part  51  assembled thereon, comprises a receiving part  5 Ya and a rising part  5 Yb while the top end  100  of the rising part  5 Yb extends in such a manner as to touch the connecting position between the singular pillar part  54  and the assembly part  51  from the inner peripheral side. According to the structure, when the outer lip  53  integrally molded with the assembly part  51  is subjected to external pressure  70  from the outer-cabin side toward the inner-cabin side as shown in  FIG. 1 , central position of the rotation of the assembly part  51  relative to the door sash  2 , that is the top end  100  of the rising part  5 Yb in the present embodiment, is on a higher position farther from the door sash  2  compared with a fitting position line  110  connecting an end on the receiving part of the anchoring part  5 Y on the inner-cabin side at a distance from the door sash  2  and an end on the anchoring part  5 X on the outer-cabin side at a distance from the door sash  2 . Such a structure improves fitting and holding force of the assembly part  51  at the time of assembly and prevents rotation of the assembly part  51  by external pressure  70 , which causes the protruding end  51   a  on the outer-cabin side to float up and come off from the anchoring part  5 X on the outer-cabin side. 
     In addition, a protrusion for sealing  60  (which may be made of the same or different material from that of the hollow seal member  52 , of which an example is sponge material made of rubber having specific gravity of 0.1 to 0.4) may be provided between the hollow seal member  52  and the door sash 2  in a manner shown in  FIG. 1(   b ). The protrusion for sealing  60  is integrally molded with the hollow seal member  52  or adhered on the hollow seal member  52 . 
     Second Embodiment 
     Referring to  FIG. 3 , a weather strip  50  and assembly structure of the weather strip  50  according to the second embodiment of the present invention will be described.  FIG. 3  is a I-I line enlarged cross section of  FIG. 6  showing assembly structure of a weather strip according to second embodiment of the present invention. When constituents or items correspond to those in the first embodiment, the same symbols are used. 
     Second embodiment differs from the first embodiment in the shape of the singular pillar part  54  which connects the assembly part  51  and the hollow seal member  52  of the weather strip  50 . The pillar part  54  according to the first embodiment comprises a curved part  54   a  curved toward the door sash  2  side. The pillar part  54  according to the second embodiment is cross-section roughly S-shaped which comprises a curved part  54   b  which is curved toward an opposite side from the door sash  2  side and formed on an assembly part  51  side of the curved part  54   a  curved toward the door sash  2  side. More specifically, the singular pillar part  54  is cross-section roughly S-shaped that connects the curved part  54   b  with the assembly part  51  side of the curved part  54   a ; an outer peripheral surface  54 BM of an arc of the curved part  54   b  faces an opposite side from the door sash  2  side (body panel  3  side when the door  1  is closed) while an outer peripheral surface  54 AM of an arc of the curved part  54   a  faces the door sash  2  side. The curved part  54   a  may also be swelled and curved toward the door sash  2  side and the curved part  54   b  may be swelled and curved toward an opposite side from the door sash  2  side. 
     Other constituents are the same as those in the first embodiment of the present invention. 
     The cross-section roughly S-shaped pillar part  54  shortens the distance between the hollow seal member  52  and the assembly part  51  compared with the pillar part  54  of the first embodiment of the present invention. Such a structure simplifies the countermeasures to deal with unevenness in assembly state that generates at the time assembly. 
     In the first and the second embodiments of the present invention, the rising part  5 Yb on the receiving part  5 Ya of the anchoring part  5 Y on the inner-cabin side improves holding force of the assembly part  51  as assembled. Such a structure prevents the protruding edge  51   a  on the outer-cabin side from easily floating up and coming off from the anchoring part  5 X on the outer-cabin side even in case the assembly part  51  is solid. A hollow part  55  may be formed in the assembly part  51  as shown in  FIG. 4  in order to further improve the holding force. 
     In case the rising part  5 Yb is not provided on the receiving pall  5 Ya of the anchoring part  5 Y on the inner-cabin side as shown in  FIG. 5(   a ), the holding force of the assembly part  51  as assembled is not especially improved. But the singular pillar part  54  which connects the assembly part  51  with the hollow seal member  52  enables to assemble the hollow seal member  52  subjected to the lap setting on a garnish  7  while a hollow shape thereof is maintained. 
     In addition, as shown in  FIG. 5(   b ), in case a top end  120  is on a higher position farther from the door sash  2  compared with the fitting position line  110  (line connecting the end on the receiving part of the anchoring part  5 Y on the inner-cabin side at a distance from the door sash  2  and the end on the anchoring part  5 X on the outer-cabin side at a distance from the door sash  2 ) where the top end  120  is formed by linearly extending the receiving part  5 Ya of the anchoring part  5 Y on the inner-cabin side toward the outer-cabin side in such a manner as to touch the assembly part  51  and is inserted into the assembly part  51 , fitting and holding force of the assembly part  51  at the time of assembly is improved. 
     While the present embodiment specifies an example where the hollow seal member  52  of the weather strip  50  is subjected to the lap setting relative to the garnish  7  provided on the door sash  2 , the present invention is also applicable on structures that: the hollow seal member  52  is subjected to the lap setting on any substitute laying member other than the garnish  7 ; or the hollow seal member  52  is subjected to the lap setting relative to the door sash  2  without the garnish  7 .