Patent Publication Number: US-2023140939-A1

Title: Vehicle body lateral section structure

Description:
TECHNICAL FIELD 
     The present invention relates to a vehicle body lateral section structure. 
     BACKGROUND ART 
     As a vehicle body lateral section structure, for example, a configuration in which a center pillar is raised from a side sill as a closed cross section, a partitioning member is locked inside the closed cross section to form a filling space, and the filling space is filled with a foamable filling material to block a space of the center pillar is known. The center pillar is a vehicle body frame member. By blocking a space of a center pillar with a filling material, it is possible to improve the soundproofing performance of a vehicle body (see, for example, Patent literature 1 (Japanese Patent No. 6581623)). 
     Further, as a configuration for blocking a space of a center pillar, a configuration in which a sound insulation member having an unfoamed member (a sound insulation material) attached to a plate is locked inside a closed cross section of the center pillar, and the unfoamed member foams in a filling space to block a space of the center pillar is known. By blocking the inside of a closed cross section of a center pillar with a sound insulation material, it is possible to improve the soundproofing performance of a vehicle body (see, for example, Patent literature 2 (Japanese Patent No. 2893624)). 
     SUMMARY OF INVENTION 
     Technical Problem 
     Here, a center pillar is a member that forms a vehicle body frame material and has, for example, a high-strength first closed cross section formed by an inner panel and a stiffener (a reinforcing panel) and a second closed cross section formed by the stiffener and a side outer panel which is an external design member. 
     Therefore, in order to improve the soundproofing performance of the center pillar, it is necessary to block all the closed cross sections of the first closed cross section and the second closed cross section, and it is desired to put this configuration into practical use. 
     An aspect of the present invention provides a vehicle body lateral section structure capable of blocking all the closed cross sections of a first closed cross section and a second closed cross section provided in a vehicle body frame material. 
     Solution to Problem 
     In order to solve the above problems, the present invention proposes the following means. 
     (1) According to an aspect of the present invention, there is provided a vehicle body lateral section structure including: an inner panel that has a filling port and an opening; a stiffener that is attached along the inner panel and forms a first closed cross-sectional portion together with the inner panel; a partitioning member that is provided inside the first closed cross-sectional portion through the opening and partitions a filling space communicating with the filling port inside the first closed cross-sectional portion; a foamable filling material that fills the filling space through the filling port; a side outer panel that covers the stiffener and forms a second closed cross-sectional portion together with the stiffener; and a sound insulation member that is provided inside the second closed cross-sectional portion and foams when heated. 
     According to the aspect of (1), the first closed cross-sectional portion is formed by the inner panel and the stiffener, and the partitioning member is provided inside the first closed cross-sectional portion through the opening of the inner panel. The filling space is formed inside the first closed cross-sectional portion by providing the partitioning member. The second closed cross-sectional portion is formed by the stiffener and the side outer panel. That is, a vehicle body frame material is formed by the inner panel, the stiffener, and the side outer panel, and the first closed cross-sectional portion and the second closed cross-sectional portion are formed in the vehicle body frame material. 
     Here, by the filling space of the first closed cross-sectional portion being filled with the foamable filling material through the filling port, the first closed cross-sectional portion is blocked with the filling material. The sound insulation member is provided inside the second closed cross-sectional portion, and the sound insulation member foams when heated in a drying furnace, for example, and thus the second closed cross-sectional portion is blocked with the sound insulation member. 
     In this way, by blocking the first closed cross-sectional portion and the second closed cross-sectional portion of the vehicle body lateral section structure with the filling material and the sound insulation member, respectively, it is possible to block all the closed cross sections of the vehicle body lateral section structure. As a result, the soundproofing performance of the vehicle body lateral section structure can be sufficiently (dramatically) improved. 
     (2) In the aspect of (1), the partitioning member may have a door portion that opens and closes to allow a fixing clip of the sound insulation member to pass. 
     Here, in order to adjust a filling amount of the filling material to fill the filling space, it is conceivable to form a recess in the partitioning member. For example, the sound insulation member may be fixed to the inside of the second closed cross-sectional portion in advance with the fixing clip before the partitioning member is attached to the inside of the first closed cross-sectional portion. In this case, it is conceivable that when the partitioning member is attached, the partitioning member interferes with, for example, the fixing clip of the sound insulation member that is fixed in advance. 
     That is, the side outer panel is attached to the stiffener in a state where the fixing clip is fitted into a fixing hole of the stiffener to fix the sound insulation member, and thus the stiffener and the side outer panel form a second closed cross-sectional portion. Therefore, the sound insulation member is fixed to the inside of the second closed cross-sectional portion. In this state, the partitioning member is provided inside the first closed cross-sectional portion through the opening. At this time, it is conceivable that the partitioning member interferes with the fixing clip. 
     According to the aspect of (2), the door portion is formed in the partitioning member such that the door portion is opened and closed to allow the fixing clip of the sound insulation member to pass. Therefore, the door portion can be opened when the second fixing clip passes and can be closed after the second fixing clip passes. As a result, the partitioning member can be assembled at a normal position, and further, the sealing property of the partitioning member after assembly can be ensured. Therefore, by the filling space of the first closed cross-sectional portion being filled with the foamable filling material through the filling port, the first closed cross-sectional portion can be reliably blocked with the filling material. 
     (3) In the aspect of (2), the door portion may be supported to be openable and closable with a door hinge made of a resin. 
     According to the aspect of (3), by forming the door hinge of the door portion with a resin, it is possible to support the door portion to be openable and closable with the door hinge having a simple configuration. 
     (4) In the aspect of any one of (1) to (3), the partitioning member may have a fixing knob portion provided inside the first closed cross-sectional portion and facing the opening. 
     According to the aspect of (4), when the operator disposes the partitioning member inside the first closed cross-sectional portion through the opening, for example, in order to allow the partitioning member to pass through the opening, it is conceivable to elastically deform the partitioning member into substantially a V shape in a side view. In this case, in a state where the partitioning member is disposed inside the first closed cross-sectional portion, the partitioning member is restored to a shape before bending, and the clip portion is inserted into the fixing hole that opens in the filling space and locked thereto. 
     At this time, it is conceivable that it is difficult for the operator to visually check the clip portion and the fixing hole. Also in this case, by operating the fixing knob portion through the opening, it is possible to easily lock the clip portion to the fixing hole. As a result, the operator can easily fix the partitioning member at a normal position in the first closed cross-sectional portion. 
     (5) In the aspect of any one of (1) to (4), the first closed cross-sectional portion may have a pair of inclined portions facing each other, and in the pair of inclined portions, a stiffener rear inclined portion may have a smaller inclination angle than a stiffener front inclined portion, the partitioning member may be divided into at least two portions via a bending hinge made of a resin and may have a first partitioning portion and a second partitioning portion that come into contact with the pair of inclined portions, and in the first partitioning portion and the second partitioning portion, the partitioning portion that comes into contact with the stiffener rear inclined portion may have a clip portion that is locked to a fixing hole that opens in the filling space. 
     According to the aspect of (5), the partitioning member is divided into at least two of the first partitioning portions and a second partitioning portion. Then, in the first partitioning portion and the second partitioning portion, the partitioning portion that comes into contact with the stiffener rear inclined portion having a small inclined angle has the clip portion formed therein. As a result, in a state where the partitioning portion provided with the clip portion is pressed with the filling that has filled the filling space, the partitioning portion is held at a normal position by the clip portion such that the partitioning portion does not open, and the filling material can be prevented from leaking to the outside of the filling space. 
     (6) In the aspect of any one of (1) to (5), the first closed cross-sectional portion may have a larger cross section than the second closed cross-sectional portion, and the filling space partitioned inside may be filled with a filling material which is a foaming material. 
     According to the aspect of (6), the first closed cross-sectional portion has a cross section (a cross-sectional area) larger than that of the second closed cross-sectional portion, and the filling space partitioned inside the first closed cross-sectional portion is filled with the filling material for a foaming material. As a result, by the filling space having a large cross section being filled with the filling material for a foaming material, the first closed cross-sectional portion can be easily and reliably blocked with the filling material, and the production property and the sound insulation property can be improved. 
     (7) In the aspect of (6), the second closed cross-sectional portion may be formed on a side opposite to the inner panel with respect to the first closed cross-sectional portion and may be blocked with the sound insulation member that foams when heated. 
     According to the aspect of (7), the second closed cross-sectional portion is formed on a side opposite to the inner panel with respect to the first closed cross section, and the sound insulation member that foams when heated blocks the second closed cross-sectional portion. Therefore, it is not necessary to fill the second closed cross-sectional portion with the filling material. Further, it is not necessary to form a filling port for filling the second closed cross-sectional portion with the filling material. As a result, the second closed cross-sectional portion can be easily and reliably blocked with the sound insulation member, and the production property and the sound insulation property can be improved. 
     (8) In the aspect of (5), at least one of the first partitioning portion and the second partitioning portion may have a horizontal portion, an inclined portion, and a raised portion straddling the horizontal portion and the inclined portion. 
     According to the aspect of (8), at least one of the first partitioning portion and the second partitioning portion has the horizontal portion, the inclined portion, and the raised portion. Further, the raised portion is formed to straddle the horizontal portion and the inclined portion. Therefore, the horizontal portion and the inclined portion can be reinforced by the raised portion. Therefore, when the filling space is filled with the foamable filling material, a posture of the first partitioning portion or the second partitioning portion can be held by the raised portion, and the filling amount of the foamable filling material can be adjusted. 
     (9) In the aspect of (5), in the first partitioning portion and the second partitioning portion, the partitioning portion that comes into contact with the stiffener rear inclined portion may have a holding knob portion for holding a posture at a position near the filling port and facing the opening in a state where the partitioning member is provided inside the first closed cross-sectional portion. 
     According to the aspect of (9), in the first partitioning portion and the second partitioning portion, the partitioning portion that comes into contact with the stiffener rear inclined portion having a small inclined angle has the holding knob portion for holding a posture at a position near the filling port and facing the opening. As a result, the operator can hold the partitioning portion in a normal posture by operating the holding knob portion for holding a posture through the opening such that the partitioning portion does not move upward when pressed with the foamable filling material that has filled through the filling port, for example. 
     (10) In the aspect of any one of (5) to (9), at least one of the first partitioning portion and the second partitioning portion may have a bottom rib that comes into contact with a wall portion which partitions an end portion of the first closed cross-sectional portion. 
     According to the aspect of (10), the bottom rib is formed in at least one of the first partitioning portion and the second partitioning portion. Further, the bottom rib is brought into contact with the wall portion which partitions the end portion of the first closed cross-sectional portion. As a result, the first partitioning portion and the second partitioning portion can be held (fixed) at a normal position with the bottom rib. 
     Advantageous Effects of Invention 
     According to the present invention, a first closed cross-sectional portion and a second closed cross-sectional portion of a vehicle body lateral section structure are blocked with a filling material and a sound insulation member, respectively. As a result, it is possible to block all the closed cross sections of a first closed cross section and a second closed cross section provided in a vehicle body frame material. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is a side view of a vehicle body lateral section structure according to an embodiment of the present invention from the outside of a vehicle. 
         FIG.  2    is a cross-sectional view along line II-II of  FIG.  1   . 
         FIG.  3    is a side view of a vehicle body lateral section structure according to an embodiment of the present invention from the inside of a vehicle. 
         FIG.  4    is a cross-sectional view along line IV-IV of  FIG.  1   . 
         FIG.  5    is a perspective view with a side outer panel removed from the vehicle body lateral section structure of the embodiment. 
         FIG.  6    is a perspective view with a center pillar inner removed from the vehicle body lateral section structure of  FIG.  3   . 
         FIG.  7    is a perspective view showing a center pillar inner and a partitioning member according to the embodiment. 
         FIG.  8    is a perspective view showing the partitioning member of  FIG.  7   . 
         FIG.  9    is a perspective view showing a second partitioning portion of the partitioning member of the embodiment. 
         FIG.  10    is a perspective view showing a state in which the partitioning member of the embodiment is disposed inside a first closed cross-sectional portion. 
         FIG.  11    is a perspective view illustrating an example in which the partitioning member of the embodiment is disposed inside a first closed cross-sectional portion. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Hereinafter, a vehicle body lateral section structure according to an embodiment of the present invention will be described with reference to the drawings. In the drawings, an arrow FR indicates forward with respect to a vehicle, an arrow UP indicates upward with respect to the vehicle, and an arrow LH indicates leftward with respect to the vehicle. 
     &lt;Vehicle&gt; 
     As shown in  FIGS.  1  and  2   , the vehicle Ve includes, for example, a vehicle body lateral section structure  10 , and the type and shape of the vehicle are not particularly limited. The vehicle body lateral section structure  10  is provided with a side sill  11  and a center pillar  12  as frame members. Hereinafter, a passenger car provided with the vehicle body lateral section structure  10  will be described as an example of the vehicle. 
     &lt;Vehicle Body Lateral Section Structure&gt; 
     The vehicle body lateral section structure  10  is a structure that forms vehicle body lateral sections on left and right sides of a vehicle body. The vehicle body lateral sections on the left and right sides of the vehicle body are configured to be substantially symmetrical. Therefore, hereinafter, the vehicle body lateral section on the left side of the vehicle body will be described as the vehicle body lateral section structure  10 , and the description of the vehicle body lateral section on the right side of the vehicle body will be omitted. 
     The vehicle body lateral section structure  10  includes a side sill  11 , a center pillar  12 , a partitioning member  13 , a filling material (not shown), and a sound insulation member  14 . 
     &lt;Side Sill&gt; 
     The side sill  11  is a hollow frame member disposed on a left outer side in a vehicle width direction and extending in a front-rear direction of the vehicle body. The side sill  11  includes a side sill inner  21 , a side sill stiffener (a reinforcing panel)  22 , and a side sill outer  23 . 
     The side sill inner  21  is formed in a hat shape in a cross section to bulge inward in the vehicle width direction. The side sill inner  21  has an inner upper flange  21   a  and an inner lower flange  21   b . The side sill stiffener  22  is formed in a hat shape in a cross section to bulge outward in the vehicle width direction. The side sill stiffener  22  has a stiffener upper flange  22   a  and a stiffener lower flange  22   b.    
     The inner upper flange  21   a  and the stiffener upper flange  22   a  are joined to each other in a state in which a lower portion  41   a  of a center pillar inner  41  (which will be described later) is sandwiched therebetween. The inner lower flange  21   b  and the stiffener lower flange  22   b  are joined to each other in a state in which the lower portion  41   a  of the center pillar inner  41  is sandwiched therebetween. 
     As a result, in the side sill  11 , a closed cross-sectional portion (a closed cross section) having a rectangular frame shape is formed by the side sill inner  21  and the side sill stiffener  22 . A cross member  28 , a floor panel  29  (both are shown in  FIG.  3   ), and the like are connected to an inner side of the side sill  11  in the vehicle width direction. 
     The side sill stiffener  22  includes a stiffener outer side surface portion  24 , a stiffener upper surface portion  25  (a “wall portion partitioning an end portion of a first closed cross-sectional portion” in the claims)  25 , and a stiffener lower surface portion  26  in addition to the stiffener upper flange  22   a  and the stiffener lower flange  22   b.    
     The stiffener outer side surface portion  24  is vertically disposed on an outer side in the vehicle width direction and extends in the front-rear direction of the vehicle body. 
     The stiffener upper surface portion  25  extends in an upward inclined shape inward in the vehicle width direction from an upper side of the stiffener outer side surface portion  24  to a lower side of the stiffener upper flange  22   a . The stiffener upper surface portion  25  has a first fixing hole (a fixing hole in the claims)  32  for fixing the partitioning member  13 . The stiffener lower surface portion  26  extends in a downward inclined shape inward in the vehicle width direction from a lower side of the stiffener outer side surface portion  24  to an upper side of the stiffener lower flange  22   b.    
     A reinforcing member  34  is attached to the inside of the side sill stiffener  22  along the stiffener outer side surface portion  24 , the stiffener upper surface portion  25 , and the stiffener lower surface portion  26 . The reinforcing member  34  has a second fixing hole (a fixing hole in the claims)  36  formed in an upper surface portion  34   a . The second fixing hole  36  is formed below the first fixing hole  32  and on a line extending from the first fixing hole  32 . The first fixing hole  32  and the second fixing hole  36  open to a filling space  62  which will be described later. 
     A lower portion  51   a  of a stiffener external surface portion  51  (which will be described later) of the center pillar  12  is joined to the stiffener outer side surface portion  24 . Further, the side sill outer  23  is joined to the stiffener outer side surface portion  24  from the outside in the vehicle width direction to cover the stiffener outer side surface portion  24 . That is, the stiffener outer side surface portion  24 , the stiffener upper surface portion  25 , and the stiffener upper flange  22   a  are covered from the outside in the vehicle width direction with the side sill outer  23 . 
     The side sill outer  23  is formed in a portion of the side outer panel  20  corresponding to the side sill stiffener  22 . The side outer panel  20  is an external design member that forms an external surface of the vehicle body lateral section structure. 
     A lower end portion  12   a  of the center pillar  12  is joined to the center of the side sill  11  in the front-rear direction of the vehicle body. 
     &lt;Center Pillar&gt; 
     As shown in  FIGS.  3  to  5   , the center pillar  12  includes a center pillar inner (an inner panel in the claims)  41 , a center pillar stiffener (a stiffener or a reinforcing panel in the claims)  42 , and a center pillar outer (a side outer panel in the claims)  43 . 
     In the center pillar inner  41 , for example, a flat plate member made of a metal such as high-strength steel is formed by press working. The center pillar inner  41  is disposed in the front-rear direction of the vehicle body in a state where the lower portion  41   a  (see  FIG.  2   ) is sandwiched in the side sill  11  and is raised upward from the side sill  11 . The center pillar inner  41  has a first filling port (a filling port in the claims)  45 , a second filling port (a filling port in the claims)  46 , an opening  47 , an inner front flange  41   b , and an inner rear flange  41   c.    
     The inner front flange  41   b  forms a front side of the center pillar inner  41 . The inner front flange  41   b  has an inner front inclined portion  41   d . The inner front inclined portion  41   d  extends in an inclined shape upward from an upper portion  11   a  of the side sill  11  to a first position H 1  having a predetermined height. The inner rear flange  41   c  forms a rear side of the center pillar inner  41 . The inner rear flange  41   c  has an inner rear inclined portion  41   e . The inner rear inclined portion  41   e  extends in an inclined shape upward from the upper portion  11   a  of the side sill  11  to a second position H 2  having a predetermined height. 
     The first filling port  45  opens in the center pillar inner  41  between the inner front inclined portion  41   d  and the upper portion  11   a  of the side sill  11 . The second filling port  46  opens in the center pillar inner  41  between the inner rear inclined portion  41   e  and the upper portion  11   a  of the side sill  11 . The opening  47  opens in the center pillar inner  41  above the upper portion  11   a  of the side sill  11  between the inner front inclined portion  41   d  and the inner rear inclined portion  41   e  and between the first filling port  45  and the second filling port  46 . For example, a retractor (a seatbelt component) of a seatbelt device (not shown) is arranged in the opening  47  in a state of being inserted. The retractor is a device that winds up and rewinds a webbing of the seatbelt device. 
     The center pillar stiffener  42  has a stiffener external surface portion  51 , a stiffener front surface portion  52 , a stiffener rear surface portion  53 , a stiffener front flange  42   a , and a stiffener rear flange  42   b.    
     The stiffener external surface portion  51  has a lower portion  51   a  joined to the stiffener outer side surface portion  24  of the side sill  11  from the outside in the vehicle width direction and is raised upward from the stiffener outer side surface portion  24 . The stiffener external surface portion  51  has a stiffener front inclined side  51   b  formed on a front side and a stiffener rear inclined side  51   c  formed on a rear side. The stiffener front inclined side  51   b  extends in an inclined shape upward from an upper portion  11   a  of the side sill  11  to the first position H 1  having a predetermined height. The stiffener front inclined side  51   b  extends in an inclined shape upward from an upper portion  11   a  of the side sill  11  to the second position H 2  having a predetermined height. 
     The stiffener external surface portion  51  has a first attachment hole  55  formed in the vicinity of the stiffener front inclined side  51   b  and a second attachment hole  56  formed in the vicinity of the stiffener rear inclined side  51   c . The sound insulation member  14 , which will be described later, is attached to the first attachment hole  55  and the second attachment hole  56 . 
     The stiffener front surface portion  52  is bent inward in the vehicle width direction from the front side of the stiffener external surface portion  51 . The stiffener front surface portion  52  has a stiffener front inclined portion  52   a . The stiffener front inclined portion  52   a  is bent inward in the vehicle width direction from the stiffener front inclined side  51   b  and extends in an inclined shape upward from the upper portion  11   a  of the side sill  11  to the first position H 1  having a predetermined height. In the stiffener front inclined portion  52   a , a front inclined angle (an inclined angle) of a portion with which the partitioning member  13 , which will be described later, comes into contact is set to θ1 with respect to a vertical line. 
     The stiffener rear surface portion  53  is bent inward in the vehicle width direction from the rear side of the stiffener external surface portion  51 . The stiffener rear surface portion  53  has a stiffener rear inclined portion  53   a . The stiffener rear inclined portion  53   a  is bent inward in the vehicle width direction from the stiffener rear inclined side  51   c . The stiffener rear inclined portion  53   a  extends in an inclined shape upward from the upper portion  11   a  of the side sill  11  to the second position H 2  having a predetermined height. In the stiffener rear inclined portion  53   a , a rear inclined angle (an inclined angle) of a portion with which the partitioning member  13 , which will be described later, comes into contact is set to θ 2  with respect to a vertical line. 
     The stiffener front inclined portion  52   a  and the stiffener rear inclined portion  53   a  form a pair of inclined portions disposed to face each other in the front-rear direction of the vehicle body. That is, the stiffener rear inclined portion  53   a  forms one of the pair of inclined portions. The stiffener front inclined portion  52   a  forms the other of the pair of inclined portions. The rear inclined angle θ2 of the stiffener rear inclined portion  53   a  is set smaller than the front inclined angle θ1 of the stiffener front inclined portion  52   a.    
     The stiffener front flange  42   a  projects from an inner side of the stiffener front surface portion  52  toward the front of the vehicle body along the inner front flange  41   b . The stiffener rear flange  42   b  projects from an inner side of the stiffener rear surface portion  53  toward the rear of the vehicle body along the inner rear flange  41   c . The stiffener front flange  42   a  and the inner front flange  41   b  are joined to each other, and the stiffener rear flange  42   b  and the inner rear flange  41   c  are joined to each other. 
     Therefore, the center pillar stiffener  42  is attached along the center pillar inner  41 . As a result, in the center pillar  12 , a first closed cross-sectional portion (a first closed cross section)  50  having a rectangular frame shape is formed by the center pillar inner  41  and the center pillar stiffener  42 . In the first closed cross-sectional portion  50 , a lower end portion (an end portion)  50   a  is partitioned by the stiffener upper surface portion  25 . That is, the stiffener upper surface portion  25  forms a wall portion that partitions the lower end portion  50   a  of the first closed cross-sectional portion  50 . 
     As shown in  FIGS.  1  and  4   , the center pillar outer  43  has an outer external surface portion  57 , an outer front surface portion  58 , an outer rear surface portion  59 , an outer front flange  43   a , and an outer rear flange  43   b.    
     The outer external surface portion  57  is raised from an upper side of the side sill outer  23  along the stiffener external surface portion  51 . The outer external surface portion  57  is disposed with a gap outward in the vehicle width direction with respect to the stiffener external surface portion  51  (see also  FIG.  2   ). The outer front surface portion  58  is bent inward in the vehicle width direction from a front side of the outer external surface portion  57  along the stiffener front surface portion  52 . The outer front surface portion  58  is disposed with a gap on a side of the front of the vehicle body with respect to the stiffener front surface portion  52 . The outer rear surface portion  59  is bent inward in the vehicle width direction from a rear side of the outer external surface portion  57  along the stiffener rear surface portion  53 . The outer rear surface portion  59  is disposed with a gap on a side of the rear of the vehicle body with respect to the stiffener rear surface portion  53 . 
     The outer front flange  43   a  projects from an inner side of the outer front surface portion  58  toward the front of the vehicle body along the stiffener front flange  42   a . The outer rear flange  43   b  projects from an inner side of the outer rear surface portion  59  toward the rear of the vehicle body along the inner rear flange  41   c . The outer front flange  43   a  is joined to the stiffener front flange  42   a  and the inner front flange  41   b . The outer rear flange  43   b  is joined to the stiffener rear flange  42   b  and the inner rear flange  41   c.    
     Therefore, the center pillar outer  43  is attached along the center pillar stiffener  42 . That is, the center pillar stiffener  42  is covered from the outside in the vehicle width direction with the center pillar outer  43 . The center pillar outer  43  is formed at a portion of the side outer panel  20  (that is, an external design member) corresponding to the center pillar stiffener  42 . 
     As a result, in the center pillar  12 , a second closed cross-sectional portion (a second closed cross section)  60  having a rectangular frame shape is formed by the center pillar stiffener  42  and the center pillar outer  43 . The second closed cross-sectional portion  60  is formed on a side opposite to the center pillar inner  41  with respect to the first closed cross-sectional portion  50  in the vehicle width direction. The second closed cross-sectional portion  60  is formed in a cross section smaller than that of the first closed cross-sectional portion  50 . In other words, the first closed cross-sectional portion  50  is formed in a cross section larger than that of the second closed cross-sectional portion  60 . 
     &lt;Partitioning Member&gt; 
     As shown in  FIGS.  6  to  8   , the partitioning member  13  is a member provided inside the first closed cross-sectional portion  50  from the opening  47 . The partitioning member  13  is disposed below the lower end portion  47   a  of the opening  47  and above the stiffener upper surface portion  25  with a gap therebetween. Therefore, inside the first closed cross-sectional portion  50 , a filling space  62  (see also  FIG.  2   ) is partitioned by the stiffener upper surface portion  25  and the partitioning member  13  in a vertical direction. In the filling space  62 , a front end portion  62   a  communicates with the first filling port  45  (see  FIG.  3   ), and a rear end portion  62   b  communicates with the second filling port  46  (see  FIG.  3   ). Therefore, the front end portion  62   a  of the filling space  62  communicates with the inside of the center pillar inner  41  in the vehicle width direction via the first filling port  45 . The rear end portion  62   b  of the filling space  62  communicates with the inside of the center pillar inner  41  in the vehicle width direction via the second filling port  46 . That is, the partitioning member  13  is disposed to partition a filling space  62  communicating with the first filling port  45  and the second filling port  46  inside the first closed cross-sectional portion  50 . 
     The partitioning member  13  is a member formed of a resin and has a first partitioning portion  65  and a second partitioning portion  66  obtained by dividing the partitioning member  13  into two and a bending hinge  67  that connects the first partitioning portion  65  and the second partitioning portion  66  to each other. Further, the partitioning member  13  includes a first rib (a bottom rib in the claims)  71  in the first partitioning portion  65 . In addition, the partitioning member  13  includes a clip portion  72 , a fixing knob portion  73 , a door portion  74 , a holding knob portion  75 , and a second rib (a bottom rib in the claims)  76  (see  FIG.  2   ) in the second partitioning portion  66 . 
     The first partitioning portion  65  is disposed on a side of the front of the vehicle body of the filling space  62 . The second partitioning portion  66  is disposed on a side of the rear of the vehicle body of the filling space  62 . The first partitioning portion  65  and the second partitioning portion  66  are foldably connected to each other by the bending hinge  67  made of a resin. The bending hinge  67  is formed to be thinner than a plate thickness of each of the first partitioning portion  65  and the second partitioning portion  66 . Therefore, the bending hinge  67  is formed to be elastically deformable in a direction in which the first partitioning portion  65  and the second partitioning portion  66  are bent in the front-rear direction of the vehicle body. 
     The bending hinge  67  is formed close to a side of the front of the vehicle body with respect to the center of the partitioning member  13  in the front-rear direction of the vehicle body. By elastically deforming the bending hinge  67 , it is possible to bend the first partitioning portion  65  and the second partitioning portion  66  into a V shape. As a result, the operator can easily pass the partitioning member  13  through the opening  47  and can easily dispose the partitioning member  13  inside the first closed cross-sectional portion  50  through the opening  47 . In a state where the partitioning member  13  is disposed inside the first closed cross-sectional portion  50 , the disposed partitioning member  13  can be restored to a shape before bending. 
     The first partitioning portion  65  has a first horizontal portion (a horizontal portion in the claims)  81 , a first inclined portion (an inclined portion in the claims)  82 , and a first raised portion (a raised portion in the claims)  83 . The first horizontal portion  81  has a rear end portion connected to the bending hinge  67  and is disposed substantially horizontally with a gap upward with respect to the stiffener upper surface portion  25 . 
     The first inclined portion  82  extends from a front end portion of the first horizontal portion  81  toward the front of the vehicle body and upward. In the first inclined portion  82 , a front end portion (a tip end portion)  82   a  is bent substantially horizontally toward the front of the vehicle body. The front end portion  82   a  of the first inclined portion  82  is in contact with the stiffener front inclined portion  52   a . The stiffener front inclined portion  52   a  is set as the front inclined angle θ1 (see  FIG.  5   ) as described above. 
     The first raised portion  83  is formed on a front surface of the first horizontal portion  81  and a front surface of the first inclined portion  82  in the front-rear direction of the vehicle body to straddle the first horizontal portion  81  and the first inclined portion  82 . That is, the first raised portion  83  is provided to straddle a first connecting recess  65   a  between the first horizontal portion  81  and the first inclined portion  82 . Therefore, the first connecting recess  65   a  between the first horizontal portion  81  and the first inclined portion  82  is reinforced by the first raised portion  83 . 
     The first rib  71  is provided on a back surface of the first partitioning portion  65 . The first rib  71  protrudes downward. The first rib  71  is formed such that a lower end portion  71   a  is in contact with the stiffener upper surface portion  25  in a state where the partitioning member  13  is provided inside the first closed cross-sectional portion  50 . 
     As shown in  FIGS.  8  to  10   , the second partitioning portion  66  has a second horizontal portion  85  (a horizontal portion in the claims), a second inclined portion  86  (an inclined portion in the claims), and a second raised portion  87  (a raised portion in the claims). In the second horizontal portion  85 , a front end portion is connected to the bending hinge  67 . Similar to the first horizontal portion  81 , the second horizontal portion  85  is disposed substantially horizontally with a gap upward with respect to the stiffener upper surface portion  25 . A front surface of the second horizontal portion  85  is disposed substantially on the same surface as (to be flush with) the front surface of the first horizontal portion  81 . 
     The second inclined portion  86  extends from a rear end portion of the second horizontal portion  85  toward the rear of the vehicle body and upward. A rear end portion (a tip end portion)  86   a  of the second inclined portion  86  is bent substantially horizontally toward the rear of the vehicle body. The rear end portion  86   a  of the second inclined portion  86  is in contact with the stiffener rear inclined portion  53   a . The stiffener rear inclined portion  53   a  is set as the rear inclined angle θ2 (see  FIG.  5   ) as described above. The rear inclined angle θ2 of the stiffener rear inclined portion  53   a  is set smaller than the front inclined angle θ1 (see  FIG.  5   ) of the stiffener front inclined portion  52   a.    
     The second raised portion  87  is formed on a front surface of the second horizontal portion  85  and a front surface of the second inclined portion  86  in the front-rear direction of the vehicle body to straddle the second horizontal portion  85  and the second inclined portion  86 . That is, the second raised portion  87  is provided to straddle a second connecting recess  66   a  between the second horizontal portion  85  and the second inclined portion  86 . Therefore, the second connecting recess  66   a  between the second horizontal portion  85  and the second inclined portion  86  is reinforced by the second raised portion  87 . 
     In this way, the first connecting recess  65   a  between the first horizontal portion  81  and the first inclined portion  82  is reinforced by the first raised portion  83 . The second connecting recess  66   a  between the second horizontal portion  85  and the second inclined portion  86  is reinforced by the second raised portion  87 . Therefore, when the filling space  62  is filled with a filling material, a posture of the first partitioning portion  65  can be held by the first raised portion  83 , and a posture of the second partitioning portion  66  can be held by the second raised portion  87 . As a result, a filling amount of the filling material to fill the filling space  62  can be suitably adjusted using the posture of the partitioning member  13 . 
     As shown in  FIGS.  2 ,  8  and  10   , the clip portion  72  is provided in a portion of the second horizontal portion  85  close to the bending hinge  67  (that is, the center of the partitioning member  13  in the front-rear direction of the vehicle body). The clip portion  72  has a protruding portion  91  and a partitioning clip  92 . 
     The protruding portion  91  protrudes downward from the back surface of the second horizontal portion  85  to the stiffener upper surface portion  25  and in an inclined shape inward in the vehicle width direction. The partitioning clip  92  protrudes from a lower end portion of the protruding portion  91  to be insertable into the first fixing hole  32  of the stiffener upper surface portion  25  and the second fixing hole  36  of the reinforcing member  34 . Further, the partitioning clip  92  is formed to be able to be locked (fixed) to each of the fixing holes  32  and  36  in a state of being inserted into the first fixing hole  32  and the second fixing hole  36 . 
     Here, in the second partitioning portion  66 , the rear end portion  86   a  of the second inclined portion  86  is in contact with the stiffener rear inclined portion  53   a . The rear inclined angle θ2 (see  FIG.  5   ) of the stiffener rear inclined portion  53   a  is set smaller than the front inclined angle θ1 of the stiffener front inclined portion  52   a . Therefore, it is conceivable that the second partitioning portion  66  will open in a state where the second partitioning portion  66  is pressed with the filling material that has filled the filling space  62 . 
     Therefore, the clip portion  72  is provided on the second horizontal portion  85  of the second partitioning portion  66 . Therefore, the clip portion  72  (specifically, the partitioning clip  92 ) can hold the second partitioning portion  66  at a normal position such that the second partitioning portion  66  does not open upward. As a result, it is possible to prevent the filling material from leaking to the outside (above the outside) of the filling space  62 . 
     The fixing knob portion  73  is formed on the front surface of the second horizontal portion  85  and on a line extending from the clip portion  72  (above the clip portion  72 ). The fixing knob portion  73  protrudes upward from the front surface of the second horizontal portion  85 . The fixing knob portion  73  is disposed at a position facing the opening  47  (see  FIG.  3   ) in a state where the partitioning member  13  is provided inside the first closed cross-sectional portion  50 . 
     Here, it is considerable that when the partitioning clip  92  of the clip portion  72  is inserted into the first fixing hole  32  and the second fixing hole  36  and locked thereto, the operator is difficult to visually check the clip portion  72 , the first fixing hole  32 , and the second fixing hole  36 . Also in this case, by operating the fixing knob portion  73  through the opening  47 , it is possible to easily lock the partitioning clip  92  to the first fixing hole  32  and the second fixing hole  36 . 
     In this way, the operator can easily fix the partitioning member  13  at a normal position in the first closed cross-sectional portion  50  by operating the fixing knob portion  73  through the opening  47 . 
     As shown in  FIGS.  8  and  9   , a recess  94  is formed in a portion of the second horizontal portion  85  that is close to the second inclined portion  86  and close to the stiffener external surface portion  51  (see  FIG.  4   ). The recess  94  is formed such that the front surface of the second horizontal portion  85  is recessed, and thus the recess  94  protrudes convexly into the filling space  62 . As a result, a space of the filling space  62  can be adjusted with the recess  94 , and the filling amount of the filling material to fill the filling space  62  can be suitably adjusted. 
     The door portion  74  is formed in a bottom portion  94   a  of the recess  94 . The door portion  74  has a pair of flaps  96  and a pair of hinges (a door hinge in the claims)  97 . The pair of flaps  96  are disposed flat along the bottom portion  94   a  of the recess  94  in a state where tip ends  96   a  and  96   a  are abutted against each other. In the pair of flaps  96 , base ends  96   b  and  96   b  are supported by the bottom portion  94   a  of the recess  94  via the hinges  97  to be able to swing in the vertical direction. 
     The pair of hinges  97  are formed of a resin to be thin with respect to a plate thickness of the bottom portion  94   a  of the recess  94  or a plate thickness of each of the pair of flaps  96 . Therefore, the pair of hinges  97  are formed to be elastically deformable to open and close the pair of flaps  96  in the vertical direction. By forming the pair of hinges  97  with a resin in this way, it is possible to support the door portion  74  to be openable and closable with the hinges  97  having a simple configuration. 
     By supporting the pair of flaps  96  with the pair of hinges  97 , it is possible for the pair of hinges  97  to open and close the pair of flaps  96  such that a second fixing clip (a fixing clip in the claims)  116  of the sound insulation member  14 , which will be described later, passes through the pair of flaps  96  in a state where the pair of flaps  96  are in contact with the second fixing clip  116 . 
     As a result, the recess  94  can be formed in the second horizontal portion  85 , and the filling amount of the filling material to fill the filling space  62  can be suitably adjusted. 
     As shown in  FIGS.  6 ,  8  and  10   , the holding knob portion  75  is formed on the front surface of the second inclined portion  86 . The holding knob portion  75  protrudes from a portion of the front surface of the second inclined portion  86  on a side of the rear of the vehicle body from the second raised portion  87  and above the second raised portion  87  toward the front of the vehicle body and upward. The holding knob portion  75  is disposed at a position near the second filling port  46  and facing the opening  47  (both are shown in  FIG.  3   ) in a state where the partitioning member  13  is provided inside the first closed cross-sectional portion  50 . 
     Here, as described above, the second partitioning portion  66  is in contact with the stiffener rear inclined portion  53   a  having the small rear inclined angle θ2 (see  FIG.  5   ). Therefore, for example, it is conceivable that the second partitioning portion  66  is moved upward by being pressed with the filling material that has filled through the second filling port  46 . 
     Therefore, the holding knob portion  75  is disposed at a position near the second filling port  46  and facing the opening  47 . As a result, the operator can hold the second partitioning portion  66  in a normal posture by operating the holding knob portion  75  through the opening  47  such that the second partitioning portion  66  does not move upward when pressed with the filling material that has filled through the second filling port  46 , for example. 
     That is, the holding knob portion  75  is a posture holding knob used to hold the posture of the partitioning member  13  (specifically, the second partitioning portion  66 ). 
     The second rib  76  is provided on a back surface of the second partitioning portion  66 . The second rib  76  protrudes downward. The second rib  76  is formed such that a lower end portion  76   a  is in contact with the stiffener upper surface portion  25  in a state where the partitioning member  13  is provided inside the first closed cross-sectional portion  50 . 
     As described above, the first rib  71  is provided on the back surface of the first partitioning portion  65 , and the second rib  76  is provided on the back surface of the second partitioning portion  66 . Further, the first rib  71  and the second rib  76  are formed such that the lower end portions  71   a  and  76   a  are in contact with the stiffener upper surface portion  25 . Therefore, the first partitioning portion  65  can be held at the normal position with the first rib  71 , and the second partitioning portion  66  can be held at the normal position with the second rib  76 . As a result, the partitioning member  13  can be held (fixed) at the normal position with the first rib  71  and the second rib  76 . 
     &lt;Filling Material&gt; 
     The filling space  62  in which the inside of the first closed cross-sectional portion  50  is partitioned by the partitioning member  13  is filled with a foamable filling material through the first filling port  45  and the first filling port  45  (both, see  FIG.  3   ). 
     As the filling material, for example, a structural foaming material is used. That is, in the filling material, as the structural foaming material, for example, so-called spray foam (also referred to as “spray rubber,” “liquid rubber,” or “liquid rubber”) which becomes a rubber state when a liquid material at a room temperature dries is used. The filling material is, for example, fast-curing polyurethane foam that is contained in a spray can, is ejected in a foam state, and is cured in a sponge state. The solidified filling material has the functions of a soundproofing material, a vibration energy absorbing material, and an impact energy absorbing material. 
     When the filling material fills the filling space through the first filling port  45  and the first filling port  45 , the filling space  62  is kept in a state sealed with the filling material. 
     &lt;Sound Insulation Member&gt; 
     As shown in  FIGS.  3  to  5   , the sound insulation member  14  is provided inside the second closed cross-sectional portion  60 . The sound insulation member  14  includes a fixing member  112  and a sound insulation material  113 . The fixing member  112  is formed of, for example, a synthetic resin material such as a hard ABS, polypropylene, polyvinyl chloride, and nylon, an aluminum alloy, a steel material, or the like. The fixing member  112  is formed in substantially a U shape in a plan view along the stiffener external surface portion  51 , the stiffener front inclined portion  52   a , and the stiffener rear inclined portion  53   a  of the center pillar stiffener  42 . 
     The fixing member  112  includes a first fixing portion  112   a , a second fixing portion  112   b , and a third fixing portion  112   c . The first fixing portion  112   a  is disposed along the stiffener external surface portion  51 . The second fixing portion  112   b  is disposed along the stiffener front inclined portion  52   a . The third fixing portion  112   c  is disposed along the stiffener rear inclined portion  53   a . The first fixing portion  112   a  has a first fixing clip (a fixing clip in the claims)  115  and the second fixing clip (the fixing clip)  116 . 
     The first fixing clip  115  protrudes inward in the vehicle width direction from a front portion of the first fixing portion  112   a . The second fixing clip  116  protrudes inward in the vehicle width direction from a rear portion of the first fixing portion  112   a . The first fixing clip  115  and the second fixing clip  116  are locked to the first attachment hole  55  and the second attachment hole  56  of the stiffener external surface portion  51 , respectively, by being inserted into the attachment holes  55  and  56  from the outside in the vehicle width direction. Therefore, the first fixing portion  112   a  is attached (fixed) along the stiffener external surface portion  51  to be substantially horizontal in the front-rear direction of the vehicle body. 
     The second fixing portion  112   b  and the third fixing portion  112   c  are held along the stiffener front inclined portion  52   a  and the stiffener rear inclined portion  53   a  to be substantially horizontal in the vehicle width direction in a state of being placed on the stiffener front inclined portion  52   a  and the stiffener rear inclined portion  53   a , respectively. 
     As a result, the fixing member  112  is disposed on a side opposite to the partitioning member  13  with respect to the stiffener external surface portion  51 , the stiffener front inclined portion  52   a , and the stiffener rear inclined portion  53   a . Further, the fixing member  112  is disposed at substantially the same height as the first horizontal portion  81  and the second horizontal portion  85  of the partitioning member  13 . 
     The sound insulation material  113  is held in the fixing member  112 . The sound insulation material  113  is formed of, for example, a soft material such as polyurethane foam that foams when heated or polyethylene. The sound insulation material  113  is formed along an upper surface of the fixing member  112  and is formed in a substantially U shape in a plan view. The sound insulation material  113  is fixed to the fixing member  112  with a plurality of support pins  118  and a plurality of support hooks  119  in a state of being placed on the upper surface of the fixing member  112 . 
     Therefore, the sound insulation member  14  is disposed on a side opposite to the partitioning member  13  with respect to the stiffener external surface portion  51  at substantially the same height as the first horizontal portion  81  and the second horizontal portion  85  of the partitioning member  13 . In this state, the sound insulation member  14  is provided inside the second closed cross-sectional portion  60 . The sound insulation member  14  is disposed along the outer external surface portion  57 , the outer front surface portion  58 , and the outer rear surface portion  59  of the center pillar outer  43  in a state of being in contact therewith (or being adjacent in a non-contact manner). 
     As a result, the sound insulation member  14  can block the inside of the second closed cross-sectional portion  60  by foaming when heated inside a drying furnace, for example. 
     Here, it is conceivable that as shown in  FIGS.  6  and  11   , in the vehicle body lateral section structure  10 , for example, the sound insulation member  14  is fixed to the inside of the second closed cross-sectional portion  60  in advance with the first fixing clip  115  and the second fixing clip  116  before the partitioning member  13  is disposed inside the first closed cross-sectional portion  50 . The first fixing clip  115  and the second fixing clip  116  protrude to the inside of the first closed cross-sectional portion  50  through the first attachment hole  55  and the second attachment hole  56  of the stiffener external surface portion  51 . 
     On the other hand, the recess  94  is formed in the second partitioning portion  66  of the partitioning member  13  in order to adjust the filling amount of the filling material. The recess  94  protrudes downward. Therefore, it is conceivable that when the partitioning member  13  is attached to the inside of the first closed cross-sectional portion  50  as shown by an arrow A, the bottom portion  94   a  of the recess  94  interferes with, for example, the second fixing clip  116  of the sound insulation member  14  that is fixed in advance. 
     Therefore, the door portion  74  is formed in the recess  94  such that the door portion  74  is opened and closed to allow the second fixing clip  116  of the sound insulation member  14  to pass. Therefore, the door portion  74  can be opened when the second fixing clip  116  passes and can be closed after the second fixing clip  116  passes. As a result, the partitioning member  13  can be assembled at a normal position, and further, the sealing property of the partitioning member  13  after assembly can be ensured. Therefore, by the filling space  62  of the first closed cross-sectional portion  50  being filled with the foamable filling material through the first filling port  45  and the second filling port  46  (see  FIG.  3   ), the first closed cross-sectional portion  50  can be reliably blocked with the filling material. 
     As described above, according to the vehicle body lateral section structure  10  of the embodiment, the first closed cross-sectional portion  50  is formed by the center pillar inner  41  and the center pillar stiffener  42 , and the partitioning member  13  is provided inside the first closed cross-sectional portion  50  through the opening  47  of the center pillar inner  41 . The filling space  62  is formed inside the first closed cross-sectional portion  50  by providing the partitioning member  13 . The second closed cross-sectional portion  60  is formed by the center pillar stiffener  42  and the center pillar outer  43 . That is, the vehicle body frame material is formed by the center pillar inner  41 , the center pillar stiffener  42 , and the center pillar outer  43 , and the first closed cross-sectional portion  50  and the second closed cross-sectional portion  60  are formed in the vehicle body frame material. 
     Here, by the filling space  62  of the first closed cross-sectional portion  50  being filled with the foamable filling material through the first filling port  45  and the second filling port  46 , the first closed cross-sectional portion  50  is blocked with the filling material. The sound insulation member  14  is provided inside the second closed cross-sectional portion  60 , and the sound insulation material  113  of the sound insulation member  14  foams when heated in a drying furnace, for example, and thus the second closed cross-sectional portion  60  is blocked with the sound insulation member  14 . In this way, by blocking the first closed cross-sectional portion  50  of the vehicle body lateral section structure  10  with the filling material and blocking the second closed cross-sectional portion  60  with the sound insulation member  14 , it is possible to block all the closed cross sections of the vehicle body lateral section structure  10 . As a result, the soundproofing performance of the vehicle body lateral section structure  10  can be sufficiently (dramatically) improved. 
     The first closed cross-sectional portion  50  has a cross section (a cross-sectional area) larger than that of the second closed cross-sectional portion  60 , and the filling space  62  partitioned inside the first closed cross-sectional portion  50  is filled with, for example, spray foam as the filling material for a foaming material. 
     By the filling space  62  having a large cross section (a cross-sectional area) being filled with spray foam as the filling material for a foaming material in this way, the first closed cross-sectional portion  50  can be easily and reliably blocked with the filling material, and the production property and the sound insulation property can be improved. 
     Further, the second closed cross-sectional portion  60  is formed on a side opposite to the center pillar inner  41  with respect to the first closed cross-sectional portion  50 , and the sound insulation material  113  (that is, the sound insulation member  14 ) that foams when heated blocks the second closed cross-sectional portion  60 . 
     Therefore, it is not necessary to fill the second closed cross-sectional portion  60  with the filling material. Further, it is not necessary to form a filling port for filling the second closed cross-sectional portion  60  with the filling material. As a result, the second closed cross-sectional portion  60  can be easily and reliably blocked with the sound insulation member  14 , and the production property and the sound insulation property can be improved. 
     The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. 
     For example, in the embodiment, an example in which the partitioning member  13  is divided into two of the first partitioning portion  65  and the second partitioning portion  66  has been described, but the present invention is not limited to this. As another example, the partitioning member  13  may be divided into three or more partitioning portions. 
     In the embodiment, an example in which the first rib  71  is provided in the first partitioning portion  65  and the second rib  76  is provided in the second partitioning portion  66  has been described, but the present invention is not limited to this. As another example, a rib may be provided on one of the first partitioning portion  65  and the second partitioning portion  66 . 
     Further, in the embodiment, an example in which the door portion  74  is provided with the pair of flaps  96  has been described, but the present invention is not limited to this. As another example, for example, the door portion  74  may be provided with one flap. 
     In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modification examples may be combined as appropriate. 
     REFERENCE SIGNS LIST 
     
         
         
           
               10  vehicle body lateral section structure 
               13  Partitioning member 
               14  Sound insulation member 
               25  Stiffener upper surface portion (a wall portion that partitions an end portion of a first closed cross-sectional portion) 
               32 ,  36  First and second fixing holes (fixing holes) 
               41  Center pillar Inner (inner panel) 
               42  Center pillar stiffener (stiffener) 
               43  Center pillar outer (side outer panel) 
               45 ,  46  First and second filling ports (filling ports) 
               47  Opening 
               50 ,  60  First and second closed cross-sectional portions 
               50   a  Lower end portion (end portion) of first closed cross-sectional portion 
               52   a  Stiffener front inclined portion 
               53   a  Stiffener rear inclined portion 
               62  Filling space 
               65 ,  66  First and second partitioning portions 
               67  Bending hinge 
               71 ,  76  First and second ribs (bottom ribs) 
               72  Clip portion 
               73  Fixing knob portion 
               74  Door portion 
               75  Holding knob portion 
               81 ,  85  First and second horizontal portions (horizontal portions) 
               82 ,  86  First and second inclined portions (inclined portions) 
               83 ,  87  First and second raised portions (raised portions) 
               97  Hinge (door hinge) 
               115 ,  116  First and second fixing clips (fixing clips)