Abstract:
A vehicle body structure is provided that prevents a glass window in a fully closed state from moving toward inside a vehicle. The vehicle body structure for use with a door includes: a vehicle body; and a run channel that is interposed for sealing between the vehicle body and a glass window that is slidably arranged in the door, wherein the run channel includes a base portion that is mounted to the vehicle body, and a hollow frame portion that elastically contacts the glass window and defines a hollow portion with the base portion, and the hollow frame portion is deformed when the glass window is fully closed so that the hollow portion is shrunk by the glass window, to cause at least a part of the hollow frame portion to closely contact the base portion.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims the benefit of priority to Japanese Patent Application No. 2016-133906 filed on Jul. 6, 2016, the disclosures of all of which are hereby incorporated by reference in their entireties. 
       FIELD OF THE INVENTION 
       [0002]    The invention relates to a vehicle body structure such as an automobile. 
       DESCRIPTION OF THE RELATED ART 
       [0003]    An example of a glass window sealing structure in a sashless door is described in Japanese Utility Model Application Publication No. S60-160255 which discloses a technique such that the inner face of a glass window is sealed with an inner lip when the glass window is fully closed. 
       SUMMARY OF THE INVENTION 
       [0004]    However, according to the technique disclosed in Japanese Utility Model Publication No. S60-160255, there is a gap between the inner lip and a sealing main body when the glass window is fully closed. If an excessive external force or the like toward inside a vehicle is applied to the glass window, the inner lip is displaced toward the gap, so that the glass window is easily moved to inside the vehicle. In this case, a stepped portion is defined between an outer lip of the sealing member that exposes outside and an outer face of the glass window, which may impair appearance around the glass window. 
         [0005]    The invention intends to solve such a problem, and it is an object of the invention to provide a vehicle body structure that prevents a glass window from moving toward inside a vehicle when the glass window is fully closed. 
       SUMMARY OF THE INVENTION 
       [0006]    To solve the problem above, the invention provides a vehicle body structure for use with a door, comprising: a vehicle body; and a run channel that is interposed for sealing between the vehicle body and a glass window that is slidably arranged in the door, wherein the run channel includes a base portion that is mounted to the vehicle body, and a hollow frame portion that elastically contacts the glass window and defines a hollow portion with the base portion, and the hollow frame portion is deformed when the glass window is fully closed so that the hollow portion is shrunk by the glass window, to cause at least a part of the hollow frame portion to closely contact the base portion. 
         [0007]    According to the invention, with the hollow portion, the run channel is elastically deformed with ease to make resistance between the run channel and the glass window smaller, so that the glass window is opened and closed in the vertical direction smoothly. Further, when the glass window is fully closed, the hollow frame portion closely contacts the base portion to increase the support rigidity of the glass window as compared with a state before the hollow portion is shrunk, to prevent the glass window from moving toward inside the vehicle. Therefore, the exterior face of the glass window is stably positioned to maintain the appearance of the glass window favorably. 
         [0008]    Further, in the invention, the vehicle body structure further includes a movement restricting member that restricts the run channel from moving toward outside a vehicle, wherein the run channel elastically contacts the vehicle body only via the movement restricting member. 
         [0009]    If the run channel is disposed so as to elastically contact both the movement restricting member and the vehicle body, the mounting accuracy of the run channel is not increased due to variations in mounting position of the movement restricting member with respect to the vehicle body. On the contrary, the run channel elastically contacts the vehicle body via the movement restricting member only as in the invention, so that the variations in mounting position of the movement restricting member with respect to the vehicle body need not be taken into consideration. Therefore, the mounting accuracy of the run channel is improved. Further, since another member needs not be newly added and the movement restricting member is used, the structure is made simple with the reduced number of members. 
         [0010]    Further, in the invention, an exterior face of the movement restricting member is arranged to be flush with an exterior face of the run channel. 
         [0011]    According to the invention, a stepped portion is not defined between the movement restricting member and the run channel, and a stepped portion between the exterior face of the glass window and the movement restricting member is minimized, so that the appearance around the glass window is favorably maintained. 
         [0012]    Further, in the invention, the movement restricting member includes a first movement restricting portion that restricts the movement of the run channel toward outside the vehicle at an outer end of the movement restricting member, and a second movement restricting portion that restricts a movement of the run channel toward inside the vehicle at an inner end of the movement restricting member. 
         [0013]    According to the invention, the run channel is stably held in a right position by the first and second movement restricting portions without being misaligned, so that the appearance of the run channel is favorably maintained. 
         [0014]    Further, in the invention, the movement restricting member is in contact with the run channel between the first movement restricting portion and the second movement restricting portion. 
         [0015]    According to the invention, the run channel is prevented from being deformed and inclined as compared with a case where the run channel is supported only by the first and second movement restricting portions, so that the run channel is maintained in a more stable manner. 
         [0016]    Still further, in the invention, a space is defined between the vehicle body and the movement restricting member for separating in an inner-outer direction of the vehicle, and an elastic member that elastically contacts the vehicle body and the movement restricting member is disposed in the space. 
         [0017]    With the space, the run channel is positioned only by the movement restricting member regardless of variations in portions of the vehicle body. Accordingly, the variations in mounting positions of the movement restricting member with respect to the vehicle body need not be considered, to increase the mounting accuracy of the run channel. Further, the elastic member is disposed in the space to absorb the variations, and the movement restricting member is stably maintained to prevent a noise caused by the movement restricting member contacting the vehicle from being generated. 
         [0018]    According to the invention, the glass window in a fully closed state is prevented from moving toward inside the vehicle, to maintain the appearance around the glass window favorably. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]      FIG. 1  is a side view of a vehicle body structure according to an embodiment when a glass window is opened; and 
           [0020]      FIG. 2  is a side view of the vehicle body structure according to the embodiment when the glass window is fully closed. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0021]    An embodiment of a vehicle body structure according to the invention will be described which is applied to a vehicle body around a sashless side door. A vehicle body  1  includes: a roof end portion  1 A to face outward in the vehicle width direction; a stepped face portion  1 B that extends substantially orthogonally inward from the lower end of the roof end portion  1 A so as to be displaced downward as it approaches toward inside a vehicle; and a lower edge face portion  1 C that extends substantially orthogonally downward from the inner end of the stepped surface portion  1 B so as to be displaced toward outside the vehicle. The lower edge face portion  1 C is arranged as it extends downward substantially to be in parallel to a plate face of a glass window  2  that is arranged in a side door to slide in a vertical direction. A run channel  3  is arranged between the vehicle body  1  and the glass window  2 . In the embodiment, the run channel  3  is mounted to the vehicle body  1  via a movement restricting member (retainer)  4 . 
       &lt;Movement Restricting Member  4 &gt; 
       [0022]    The movement restricting member  4  includes: a mounted face portion  4 A that extends in parallel to the stepped face portion  1 B so as to be fixed thereto by a fixing pin  5 ; an exterior face portion  4 B that slightly extends substantially orthogonally upward from the outer end of the mounted face portion  4 A and then is folded downward to extend substantially in parallel to the glass window  2 ; a first restricting face portion (first movement restricting portion)  4 C that slightly extends substantially in parallel to the mounted face portion  4 A from the lower edge of the exterior face portion  4 B toward inside the vehicle; a first inner face portion  4 D that extends substantially orthogonally downward from the inner end of the mounted face portion  4 A; a second inner face portion  4 E that bends from the lower end of the first inner face portion  4 D toward inside the vehicle and then further extends downward; a bottom face portion  4 F that extends substantially orthogonally from the lower end of the second inner face portion  4 E toward outside the vehicle; and a second restricting face portion (second movement restricting portion)  4 G that slightly extends substantially orthogonally upward from the outer end of the bottom face portion  4 F and is then folded downward. The second inner face portion  4 E is arranged in parallel to, but on the outer side of, the lower edge face portion  1 C via a space therebetween so as to face each other. The movement restricting member  4  is made of, for example, a pressed metal plate, but may be a resin member. 
         [0023]    The first restricting face portion  4 C as the outer end portion of the movement restricting member  4  is locked in a first locking portion  6 C of the run channel  3  to restrict the movement of the run channel  3  outside the vehicle. The second restricting face portion  4 G as the inner end portion of the movement restricting member  4  is locked in a second locking portion  6 E of the run channel  3  to restrict the run channel  3  from moving toward inside the vehicle. 
         [0024]    As described above, the space is defined between the lower edge face portion  1 C and the second inner face portion  4 E for separating in the inner-outer direction of the vehicle, and an elastic member  13  that elastically contacts the lower edge face portion  1 C and the second inner face portion  4 E is arranged in the space. The elastic member  13  is made of, for example, a synthetic rubber material, a resin material such as urethane foam or the like. 
       &lt;Run Channel  3 &gt; 
       [0025]    The run channel  3  is an elastic member that seals the glass window  2  when the glass window  2  is fully closed, and is made of a synthetic rubber material or the like. The run channel  3  includes a base portion  6  that is mounted to the vehicle body  1  via the movement restricting member  4 , a first hollow frame portion  7  and a second hollow frame portion  8  that elastically contact the glass window  2 . 
       &lt;Base Portion  6 &gt; 
       [0026]    The base portion  6  includes: an upper face portion  6 A that extends in the vehicle width direction under the mounted face portion  4 A to form a gradual circular arc in a convex shape downward so as not to be interfered with a head of the fixing pin  5 ; and a side face portion  6 B that extends in approximately parallel to the glass window  2  downward from the inner end of the upper surface portion  6 A. The first locking portion  6 C that branches to two portions vertically is formed at the outer end of the upper face portion  6 A. Further, the second locking portion  6 E branched by a protruding portion  6 D that slightly protrudes inward and downward is formed at the middle of the side face portion  6 B in the height direction. As described above, the branched portion of the first locking portion  6 C is locked with the first restricting face portion  4 C and the branched portion of the second locking portion  6 E is locked with the second restricting face portion  4 G. 
         [0027]    The lower portion of the side face portion  6 B extends downward more than the first restricting face portion  4 G, and a bottom face portion  6 F that extends toward outside and inside the vehicle is formed at the lower end of the side face portion  6 B. The inner end of the bottom face portion  6 F is formed as a lip portion  6 G that is deformed, as shown by the imaginary line, to hide the edge of a decorative ceiling plate  9  when the decorative ceiling plate  9  is mounted inside the vehicle. Further, a bridge portion  6 H is formed to extend from the side face portion  6 B at approximately the same height as the second restricting face portion  4 G to the outer end of the bottom face portion  6 F. 
         [0028]    Here, as can be seen from the difference in hatching in  FIG. 1 , the run channel  3  includes a region of the upper face portion  6 A and the side face portion  6 B, and a region of the first hollow frame portion  7  and the second hollow frame portion  8 , and the two regions are formed with different materials from each other. Since the latter region has a sealing function, it is formed of a soft synthetic rubber material, and since the former region has a supporting function to the vehicle body  1 , it is formed of a material harder than that of the latter. Both of them are formed by, for example, two-color molding in one piece. In the embodiment, the bottom face portion  6 F and the bridge portion  6 H are also formed of the same material as the first hollow frame portion  7  and the second hollow frame portion  8 . However, the bottom face portion  6 F and the bridge portion  6 H are not deformed much and are highly rigid due to the presence of the bridge portion  6 H serving as a reinforcing rib. Therefore, in the embodiment, the “base portion  6 ” includes, the bottom face portion  6 F and the bridge portion  6 H, in addition to the upper face portion  6 A, the side face portion  6 B, the first locking portion  6 C, the protruding portion  6 D and the second locking portion  6 E. 
         [0029]    The movement restricting member  4  is in contact with the base portion  6  between the first restricting face portion  4 C and the second restricting face portion  4 G. Specifically, the base portion  6  is partially in contact with the mounted face portion  4 A, the first inner face portion  4 D and the second inner face portion  4 E of the movement restricting member  4  via contact portions  14 A,  14 B,  14 C, respectively. 
       &lt;First Hollow Frame Portion  7 &gt; 
       [0030]    A hollow frame base portion  10  is formed above a base portion of the bridge portion  6 H on the outer face of the side face portion  6 B. The first hollow frame portion  7  and the second hollow frame portion  8  are formed to branch upward and downward toward outside the vehicle from the hollow frame base portion  10 . The first hollow frame portion  7  serves to seal the upper edge of the glass window  2 . The first hollow frame portion  7  includes: a lower face portion  7 A that extends upward toward outside the vehicle in an arc shape from the hollow frame base portion  10  approximately along the upper face portion  6 A; an exterior face portion  7 B that extends upward approximately in parallel to the glass window  2  from the outer end of the lower face portion  7 A; and an upper face portion  7 C that slightly extends toward inside the vehicle from the upper end of the exterior face portion  7 B so as to continue to the first locking portion  6 C. 
         [0031]    A first hollow portion  11  having a closed cross section is defined by the first hollow frame portion  7  configured as described above, the upper face portion  6 A and the side face portion  6 B of the base portion  6 . As shown in  FIG. 2 , when the glass window  2  is fully closed, the lower face portion  7 A is elastically deformed toward the first hollow portion  11  to seal the upper edge of the glass window  2 . In addition, the exterior face portion  7 B slightly protrudes toward outside the vehicle, more than the exterior face portion of the glass window  2 , above the upper edge of the glass window  2  and below the exterior face portion  4 B of the movement restricting member  4 , so that the exterior face portion  7 B is arranged to be flush with the exterior surface portion  4 B. 
       &lt;Second Hollow Frame Portion  8 &gt; 
       [0032]    The second hollow frame portion  8  seals the inner face of the glass window  2  and serves to prevent the glass window  2  from being displaced toward inside the vehicle. As shown in  FIG. 1 , in the state where the second hollow frame portion  8  does not contact the glass window  2 , the second hollow frame portion  8  includes: an upper face portion  8 A that extends toward inside and outside the vehicle from a bent portion  8 C to respectively form a gradual circular arc in a convex shape upward and the inner end thereof continues to the hollow frame base portion  10 ; and a side face portion  8 B that extends downward from the outer end of the upper face portion  8 A toward inside the vehicle and continues to the bottom face portion  6 F and the outer end of the bridge portion  6 H. The upper face portion  8 A is approximately in a V-shape having the bent portion  8 C as the bottom. 
         [0033]    A second hollow portion  12  having a closed cross section is defined by the second hollow frame portion  8  configured as described above and the bridge portion  6 H of the base portion  6 . The second hollow portion  12  is defined as a substantially V-shaped space having the outer end of the bridge portion  6 H as the bottom, in the state where the second hollow portion  12  does not contact the glass window  2 . 
       &lt;Workings and Advantageous Effects&gt; 
       [0034]    Since the second hollow portion  12  is defined in the run channel  3  that slidably contacts with the inner face of the glass window  2 , the second hollow frame portion  8  pressed by the glass window  2  is elastically deformed with ease toward the second hollow portion  12 . Therefore, the glass window  2  vertically opens and closes smoothly without being imposed with excessive resistance. As shown in  FIG. 2 , when the glass window  2  is completely closed, the side face portion  8 B is pushed toward inside the vehicle, and accordingly, the second hollow portion  12  is shrunk and deformed to fold the upper face portion  8 A in a substantially V-shape at the bent portion  8 C. As a result, in the substantially orthogonal direction P with respect to the plate face of the glass window  2 , the side face portion  8 B is closely in contact with the upper face portion  8 A which is folded in two layers, with no intervening hollow between the glass window  2  and the bridge portion  6 H of the base portion  6 . Thus, the support rigidity for the glass window  2  is increased as compared with a case where there is an intervening hollow to prevent the glass window  2  from moving toward inside the vehicle. The exterior face of the glass window  2  is stably positioned, so that the appearance of the glass window  2  is favorably maintained. 
         [0035]    If the run channel  3  is disposed so as to elastically contact both the movement restricting member  4  and the vehicle body  1 , the mounting accuracy of the run channel  3  is not increased due to variations in the mounting position of the movement restricting member  4  with respect to the vehicle body  1 . On the contrary, if the run channel  3  elastically contacts the vehicle body  1  via the movement restricting member  4  only, the variations in the mounting position of the movement restricting member  4  with respect to the vehicle body  1  need not be taken into consideration. Therefore, the mounting accuracy of the run channel  3  is improved. Further, since another member needs not be newly added and the movement restricting member is used, the structure is made simple with the reduced number of members. 
         [0036]    The exterior face portion  4 B of the movement restricting member  4  is arranged to be flush with the exterior face portion  7 B of the run channel  3 , which does not define a stepped portion between the movement restricting member  4  and the run channel  3 . Therefore, a stepped portion between the exterior face of the glass window  2  and the movement restricting member  4  is minimized, so that the appearance around the glass window  2  is favorably maintained. 
         [0037]    The first restricting face portion  4 C that restricts the movement of the run channel  3  toward outside the vehicle is arranged at the outer end portion of the movement restricting member  4 , and the second restricting face portion  4 G that restricts the movement of the run channel  3  toward inside the vehicle is arranged at the inner end portion of the movement restricting member  4 . Therefore, the run channel  3  is stably held with the movement restricting member  4  and the appearance of the run channel  3  is favorably maintained. Even if the run channel  3  is mounted so as to be pushed into the movement restricting member  4  to have so-called spring back reaction by which the run channel  3  tries to return to the shape before being mounted, the run channel  3  is effectively prevented from being disengaged and misaligned from the movement restricting member  4 , and the appearance of the run channel  3  is favorably maintained. 
         [0038]    The run channel  3  is in contact with the contact portions  14 A to  14 C between the first restricting face portion  4 C and the second restricting face portion  4 G. Compared with a case where the run channel  3  is supported only by the first restricting face portion  4 C and the second restricting face portion  4 G, the run channel  3  is prevented from being deformed and inclined and is therefore maintained in a more stable manner. 
         [0039]    The space is defined between the vehicle body  1  and the movement restricting member  4  for separating in an inner-outer direction and the elastic member  13  that elastically contacts the vehicle body  1  and the movement restricting member  4  is disposed in the space, to have the following effects. With the space, the run channel  3  is positioned only by the movement restricting member  4  regardless of variations in positions of the vehicle body  1 . Accordingly, the variations in mounting position of the movement restricting member  4  with respect to the vehicle body  1  need not be considered, to increase the mounting accuracy of the run channel  3 . Further, the elastic member  13  is disposed in the space to absorb the variations, and the movement restricting member  4  is stably maintained to prevent a noise caused by the movement restricting member  4  contacting the vehicle body  1  from being generated. 
         [0040]    The preferred embodiment of the invention has been described above. The invention increases the support rigidity for the glass window  2  by closely contacting the hollow frame portion (second hollow frame portion  8 ) with the base portion  6 . Specifically, as in the embodiment described above, the continuous region is preferably formed only with the hollow frame portion with no intervening hollow therein in an arbitrary linear direction running through the glass window  2  and the base portion  6  (in the embodiment, the substantially orthogonal direction P with respect to the plate face of the glass window  2 ), so that the support rigidity is further increased. In this case, it is acceptable if some space is left in other regions.