JP5387323B2 - Vehicle body structure - Google Patents

Description

  The present invention belongs to a technical field related to a vehicle body structure of a vehicle in which door openings are formed on both side surfaces in the vehicle width direction of the vehicle.

  In this type of vehicle structure, one using a resin material such as FRP (fiber reinforced resin) is known. For example, in the one shown in Patent Document 1, rear body members such as a rear header, an upper back, and a C pillar disposed around the back door opening are integrally formed with FRP and fixed to the underbody. Yes.

  Moreover, in what is shown in Patent Document 2, the upper cabin part assembled on the vehicle upper side of the underbody is formed of CFRP (carbon fiber reinforced resin), while the underbody is formed of a metal material (for example, aluminum). Yes.

  Moreover, in what is shown in patent document 3, a front side member is comprised with the 1st member which consists of a laminated material of CFRP, and the 2nd member made from aluminum connected to the vehicle front side edge part of the 1st member, Both members are fastened with bolts.

JP 2008-37122 A JP 2008-37123 A JP 2007-253733 A

  By the way, from the viewpoint of reducing the weight of the vehicle, as shown in Patent Documents 1 to 3, it is preferable to employ a resin material having a specific gravity lower than that of a metal material as a vehicle body member of the vehicle.

  However, as the proportion of the resin material used for the vehicle body member increases, the vehicle body rigidity decreases, so that there is a problem in that the vehicle body is easily deformed or vibrated while the vehicle is running and the ride comfort of the vehicle is deteriorated.

  Accordingly, the vehicle body of the vehicle is divided into a vehicle body lower body and a vehicle body upper body as shown in Patent Document 2, and the vehicle body lower body (platform portion) having a large external force input from the road surface during vehicle travel is rigid. On the other hand, it can be considered that the upper body of the vehicle body is made of a resin material excellent in weight reduction.

  However, in this case, the following problems occur with respect to the sealing performance of the door opening. That is, although the flange portion can be formed along the peripheral edge of the door opening portion using the joint portion of the metal plate in the lower body body, the flange portion is formed in the upper body body from the viewpoint of formability. Can not form. For this reason, the flange part for attaching a sealing member cannot be formed over the perimeter of a door opening part, and there exists a problem that the door seal structure using a flange part cannot be employ | adopted. Therefore, there is room for improvement in improving the sealing performance of the door opening.

  The present invention has been made in view of such a point, and an object of the present invention is to devise the vehicle body structure of the vehicle so as to achieve both of ensuring the rigidity of the vehicle body and reducing the weight of the vehicle body. The purpose is to improve the sealing performance of the opening.

  In order to achieve the above object, according to the present invention, the vehicle body member constituting the peripheral portion of the door opening is divided into two parts, and the upper half is integrally formed with a resin member, and the lower half is formed. The portion is formed by a joined body of at least two metal plates arranged in the vehicle width direction, and the lower flange portion is formed by the joined portion of both metal plates, and a separate upper flange portion is provided to form the lower flange. The flange portion extending along the entire periphery of the door opening is formed by the cooperation of the portion and the upper flange portion.

  Specifically, the invention of claim 1 is directed to a vehicle body structure in which door openings are formed on both side surfaces in the vehicle width direction of the vehicle.

  And the vehicle body structure of the vehicle in which door openings are respectively formed on both side surfaces in the vehicle width direction of the vehicle, wherein the door openings are a door opening front side and a door opening rear side facing the vehicle front-rear direction. The door opening upper side portion and the door opening lower side portion that are vertically opposed to each other, and the door opening front side portion and the door opening rear side portion are respectively separated from each other by an upper divided portion and a lower divided portion. The upper divided part of the door opening front side part, the upper divided part of the door opening rear side part, and the door opening upper side part are integrated and configured by a resin member. Each of the lower divided portion of the front opening side portion, the lower divided portion of the rear opening portion of the door, and the lower side portion of the door opening is composed of at least two metal plates arranged in the vehicle width direction. And an end extending along the edge of the door opening of each metal plate Of the two metal plates, the joint facing the door opening extends along the periphery of the door opening and has a diameter thereof. A lower flange portion projecting inward in the direction, and the door opening at each of the upper divided portion of the door opening front side portion, the upper divided portion of the door opening rear side portion, and the door opening upper side portion. A separate upper flange portion that is attached to a portion facing the portion and projects inwardly in the radial direction of the door opening and extends along the entire periphery thereof in cooperation with the lower flange portion. It shall be.

  According to this configuration, the vehicle body includes a vehicle body upper body (a vehicle body portion including an upper divided portion of the door opening front side portion, an upper divided portion of the door opening rear side portion, and a door opening upper side portion), and a vehicle body lower body. As a two-part structure (a vehicle body part including a lower part of the door opening front side, a lower part of the door opening rear side, and a door opening lower part), a large external force during a vehicle collision or during vehicle travel It is possible to configure the lower body of the vehicle body that acts on the metal member and the upper body of the vehicle body with a relatively small external force from the resin material. Thereby, weight reduction of a vehicle body can be achieved, ensuring sufficient vehicle body rigidity.

  By the way, when the vehicle body upper body is formed of a resin-integrated molded product, it is difficult to form a flange portion around the door opening due to its manufacturing method. In contrast, in the present invention, an upper flange portion is attached to a portion of the upper body of the vehicle body facing the door opening, and the flange is formed over the entire periphery of the door opening by the cooperation of the upper flange portion and the lower flange portion. Parts were formed. Thereby, even when the vehicle body upper body is formed of a resin material, the flange portion can be formed along the entire periphery of the door opening. Therefore, a door seal structure using the flange portion is possible, and the sealing performance of the door opening can be improved.

  According to a second aspect of the present invention, in the first aspect of the invention, there is provided a frame-like member that is superposed in the vehicle width direction and joined to the lower flange portion, and extends along the entire periphery of the door opening portion. The upper flange portion is formed as a part of the frame-shaped member.

  According to this configuration, since the flange portion is formed by the frame-shaped member, a step or a groove does not occur at the boundary portion between the upper flange portion and the lower flange portion. Therefore, the continuity of the flange part in the circumferential direction can be improved. Therefore, the door seal structure using the flange portion can be made more highly sealable, and the appearance around the door opening can be improved.

  In the invention of claim 3, in the invention of claim 2, it has a side door which opens and closes the door opening, and the side door is in a closed state at the periphery of the surface portion on the vehicle interior side of the side door. Sometimes, a sealing member for sealing between the side door and each of the side portions forming the door opening is attached, and the frame-like member has the above-mentioned when the side door is in a closed state. It is assumed that the seal contact surface portion that contacts the seal member is formed over the entire circumference of the frame-shaped member.

  According to this configuration, the seal contact surface portion can be separated from the vehicle body. Therefore, even when the vehicle body upper body and the vehicle body lower body are made of different materials as in the present invention, the seal contact surface portion can be formed of the same material over the entire periphery of the door opening. Therefore, the sealing characteristics of the seal contact surface portion can be made uniform. Therefore, the sealing performance of the door opening by the sealing member can be improved.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the upper end portion of the lower divided portion of the door opening front side portion and the upper end portion of the lower divided portion of the door opening rear side portion are respectively on the upper side. Forming an upper end opening that opens, and a lower end portion of the upper divided portion of the door opening front side portion is fitted and fixed to the upper end opening portion of the lower divided portion of the door opening front side portion, The lower end portion of the upper divided portion of the door opening rear side portion is fitted and fixed to the upper end opening portion of the lower divided portion of the door opening rear side portion. Suppose that it forms so that the level | step-difference part produced in the outer surface side in the connection part of an upper side division part and each lower side division part may be covered.

  According to this structure, the level | step-difference part produced in the outer surface side in the connection part of each said upper side division part and each lower side division part can be covered with a seal | sticker contact surface part. Therefore, it can prevent that the sealing performance of a sealing member is impaired in this level | step-difference part.

  As described above, according to the vehicle body structure of the vehicle of the present invention, the vehicle body member constituting the peripheral portion of the door opening is divided into two parts, and the upper half is integrally formed with a resin member, The lower half is formed by a joined body of at least two metal plates arranged in the vehicle width direction, the lower flange portion is formed by the joined portion of both metal plates, and a separate upper flange portion is provided. By cooperating with the lower flange portion and the upper flange portion, by forming a flange portion extending along the entire periphery of the door opening, while ensuring both vehicle body rigidity and weight reduction, The sealing performance of the vehicle door opening can be improved.

1 is a schematic perspective view showing a vehicle body structure of a vehicle according to an embodiment of the present invention, seen from an oblique left side in front of the vehicle. It is the side view seen from the vehicle left side which shows the vehicle body structure of the vehicle which concerns on embodiment of this invention. It is a schematic side view which shows the structure of the side door of a vehicle. It is the schematic perspective view seen from the diagonal upper side of the vehicle left side which shows the structure of the roof part of a vehicle body. It is the schematic seen from the compartment side which shows the structure of a vehicle body front part. It is explanatory drawing for demonstrating the connection structure of the front pillar upper with respect to a front pillar lower. It is the schematic seen from the compartment side which shows the structure of a vehicle body rear part. It is the perspective view seen from the diagonal left side ahead of the vehicle which shows the connection structure of the rear pillar upper with respect to a cab side panel. It is the IX-IX sectional view taken on the line of FIG. It is explanatory drawing for demonstrating the connection structure of the center pillar upper with respect to a center pillar lower. It is explanatory drawing for demonstrating the assembly method of a vehicle body. It is sectional drawing which shows the seal structure between a center pillar and a side door. It is sectional drawing which shows the seal structure between a roof side rail and a side door. It is the perspective view seen from the diagonal left side ahead of vehicles showing the state where the flange formation member provided in the front door opening was attached to the center pillar. It is the XV-XV sectional view taken on the line of FIG. It is a perspective view which shows the structure of a hinge metal fitting. FIG. 4 is a side view of the seat belt device provided in the driver's seat and the seat belt device provided in the seat portion adjacent to the vehicle right door opening in the rear seat, as viewed from the vehicle interior side. FIG. 15 is a diagram corresponding to FIG. FIG. 16 is a diagram corresponding to FIG. FIG. 12 is a diagram corresponding to FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
FIG. 1 shows a vehicle body structure of a vehicle (automobile) A according to an embodiment of the present invention. The vehicle A is a four-door sedan having a pair of front and rear side doors 1 and 2 (see FIG. 3) on both side surfaces in the vehicle width direction. In the passenger compartment of the vehicle A, there are provided two rows of seats 3 and 4 including a front seat 3 including a driver's seat (see FIG. 2) and a rear seat 4 on the rear side. Each seat 3, 4 is provided with a seat belt device 30 (see FIG. 17) that restrains and protects an occupant during a vehicle collision or the like. In the following description, “front side” and “rear side” mean the front side and rear side of the vehicle, respectively. Means.

  A front pillar 5, a center pillar 6, and a rear pillar 7 are provided in order from the front side on both sides in the vehicle width direction of the vehicle A, respectively. The inclination angle of the center pillar 6 substantially coincides with the seat back inclination angle α (see FIG. 2) at the normal use position of the front seat 3. In this embodiment, the inclination angle α is set to 4 °. In FIG. 2, the inclination angle α is drawn larger than 4 ° for easy understanding.

  A front door opening 8 is formed between the front pillar 5 and the center pillar 6, and a rear door opening 9 is formed between the center pillar 6 and the rear pillar 7. The upper ends of the pillars 5 to 7 are connected by a roof side rail 21, and the lower ends of the pillars 5 to 7 are connected by a side sill 42. The front pillar 5 constitutes the door opening front side of the front door opening 8, and the center pillar 6 is the door opening rear side of the front door opening 8 and the door opening front side of the rear door opening 9. The rear pillar 7 constitutes the door opening rear side portion of the rear door opening 9. The roof side rail 21 constitutes the upper side of the door opening of both door openings 8 and 9, and the side sill 42 constitutes the lower side of the door opening of both door openings 8 and 9.

  The front door opening 8 and the rear door opening 9 can be opened and closed by the front side door 1 and the rear side door 2, respectively. Each of the side doors 1 and 2 is a door with a sash in which sashes 1a and 2a are attached to the door body D, and is supported by the vehicle body 100 via a hinge fitting 10 (see FIG. 3).

  Each of the pillars 5 to 7 is divided into two parts in the vertical direction, and is constituted by pillar uppers 5a to 7a (corresponding to the upper pillar part) and pillar lowers 5b to 7b (corresponding to the lower pillar part). That is, the front pillar 5 includes a front pillar upper 5a and a front pillar lower 5b, the center pillar 6 includes a center pillar upper 6a and a center pillar lower 6b, and the rear pillar 7 includes a rear pillar upper 7a and a rear pillar lower 7b. Consists of.

  The connecting portions of the pillar uppers 5a to 7a and the pillar lowers 5b to 7b of the pillars 5 to 7 are positioned on the belt line 11 of the vehicle A in a side view of the vehicle (see FIG. 2). Although not shown, the pillar uppers 5a to 7a are inclined (tumbled) inward in the vehicle width direction toward the upper side.

  The vehicle body 100 includes a vehicle body upper body 101 including the pillar uppers 5a to 7a of the pillars 5 to 7, and a vehicle body lower body 102 including the pillar lowers 5b to 7b of the pillars 5 to 7. In the following description, it is assumed that the vehicle body upper body 101 is assembled to the vehicle body lower body 102 unless otherwise specified.

  The vehicle body lower body 102 is formed by welding press-formed steel plates, while the vehicle body upper body 101 is integrally formed of a carbon fiber reinforced resin material (CFRP).

  The upper body 101 is connected and supported so as to cover the upper side of the lower body 102. Specifically, as shown in FIG. 4, the vehicle body upper body 101 includes a vehicle roof portion 20, a pair of left and right front pillar uppers 5 a that support a front end portion of the vehicle roof portion 20, and a rear end of the vehicle roof portion 20. A pair of left and right rear pillar uppers 7a that support the part and a pair of left and right center pillar uppers 6a that support an intermediate part in the front-rear direction of the vehicle roof part 20 are included.

  The vehicle roof portion 20 includes a pair of left and right roof side rails 21 extending in the front-rear direction at both ends in the vehicle width direction of the roof portion 20, and a front header 22 extending in the vehicle width direction at the front end portion of the roof portion 20. 1), a rear header 23 extending in the vehicle width direction at the rear end portion of the roof portion 20, a roof cross member 24 extending in the vehicle width direction at an intermediate portion in the front-rear direction of the roof portion 20, And a roof panel 28 that covers the ceiling of the passenger compartment.

  The front header 22, the rear header 23, and the roof cross member 24 are formed in a closed cross section extending in the vehicle width direction, and the roof side rail 21 is formed in a closed cross section extending in the vehicle front-rear direction.

  The front pillar upper 5a extends from the front end portion of the roof side rail 21 toward the obliquely lower front side, and the rear pillar upper 7a extends from the rear end portion of the roof side rail toward the obliquely rearward lower side. The upper 6a extends so as to incline forward from the connecting portion of the roof side rail 21 with the roof cross member toward the lower side. Each of the pillar uppers 5a to 7a is formed so that each horizontal cross section forms a closed cross section.

  Insertion parts 25-27 (refer to Drawing 6, Drawing 8, and Drawing 10) are formed in the lower end part of each pillar upper 5a-7a. Each pillar upper 5a-7a is connected with each pillar lower 5b-7b by inserting the insertion part 25-27 in the upper end opening part 35-37 of each pillar lower 5b-7b.

  The vehicle body lower body 102 functions as a platform portion to which an engine and a suspension are attached, and forms a compartment floor surface portion of the vehicle A.

  Specifically, the vehicle body lower body 102 includes a floor panel 41 that forms a passenger compartment floor, a pair of left and right side sills 42 that extend in the front-rear direction along both side edges of the floor panel 41 in the vehicle width direction, and each side sill 42. A pair of left and right front side frames 43 that are respectively connected to the front end of each side and extend in the front-rear direction; a pair of left and right rear side frames (not shown) that are respectively connected to the rear end of each side sill 42 and extend in the front-rear direction; It includes four cross members 45 extending in the direction and arranged at a predetermined interval in the front-rear direction.

  As shown in FIG. 5, the side sill 42 is formed by joining a side sill outer 50 having a hat-shaped cross section and a side sill inner 51 so as to form a closed cross section therebetween. In the side sill 42, a side sill rain 52 having a hat-like cross section is provided that extends close to and parallel to the side sill outer 50. The upper and lower edge portions of the side sill outer 50 are welded and joined to the upper and lower edge portions of the side sill inner 51 with the side sill rain 52 interposed therebetween.

  Front hinge pillars extending in the up-down direction and the front-rear direction are erected as front pillar lowers 5b at the front end portions of the left and right side sills 42, respectively.

  As shown in FIG. 6, the front pillar lower 5b is formed by welding a hinge pillar outer 53 and a hinge pillar inner 54 arranged in the vehicle width direction. The front and rear edge portions of the hinge pillar outer 53 are welded to the front and rear edge portions of the hinge pillar inner 54, respectively, and a closed cross section extending in the vertical direction is formed between the two. The front pillar lower 5b formed in this way is composed of a vertical portion 48 extending in the vertical direction and a bulging portion 49 bulging to the rear side (door opening 8 side) with respect to the vertical portion 48.

  The upper end portion of the front pillar lower 5b forms a substantially L-shaped upper end opening 35 that opens upward. An insertion portion 25 provided at the lower end portion of the front pillar upper 5a is inserted into (inserted into) the upper end opening portion 35 and bonded thereto.

  In the front pillar lower 5b, there is provided a stopper member 55 that contacts the lower end portion of the front pillar upper 5a and positions it in the vertical direction.

  The stopper member 55 is formed by bending a metal (for example, iron) plate member. Specifically, the stopper member 55 includes a substantially rectangular horizontal support portion 55a and four vertical wall portions 55b extending downward from each side portion of the horizontal support portion 55a. The horizontal support portion 55a is fitted into the vertical portion 48 of the front pillar lower 5b and fixed through the vertical wall portions 55b. Each vertical wall portion 55b is welded to the inner wall surface of the vertical portion 48 of the front pillar lower 5b. An elliptical through hole 55f is formed in the approximate center of the horizontal support portion 55a. Thereby, welding of each vertical wall part 55b can be easily performed using the through-hole 55f.

  The insertion portion 25 of the front pillar upper 5 a is formed of a cylindrical body (or columnar body) having a substantially L-shaped cross section corresponding to the shape of the upper end opening 35. The insertion direction of the insertion portion 25 with respect to the upper end opening 35 coincides with the inclination direction of the center pillar 6.

  The peripheral wall surface of the insertion part 25 is formed in a taper shape (in which the taper is omitted in FIG. 6) that is reduced in diameter toward the lower side, and thus the insertion part 25. The insertability into the upper end opening 35 can be improved.

  In a state where the vehicle body upper body 101 is assembled to the vehicle body lower body 102, the lower end surface of the front pillar upper 5a (the lower end surface of the insertion portion 25) abuts on the horizontal support portion 55a, thereby causing the front pillar upper 5a to move in the vertical direction. Is positioned. The front pillar upper 5a is joined to the front pillar lower 5b via an adhesive in a state where the positioning has been performed.

  In the present embodiment, an adhesive application surface for applying an adhesive (surface portion indicated by diagonal lines in FIG. 6) is provided on the inner wall surface of the front pillar lower 5b except for the rear end surface 5g inclined obliquely upward to the rear. Is formed. And the surface except the rear end surface 5k among the outer wall surfaces of the insertion part 25 of the front pillar upper 5a is joined to the inner wall surface of the front pillar lower 5b through the adhesive applied to the adhesive application surface.

  An apron reinforcement 58 extending in the front-rear direction is connected to the front end portion of the front pillar lower 5b via an apron gusset 57 (see FIG. 5). The apron reinforcement 58 is connected to a wheel apron 61 constituting a suspension tower 59 and a wheel house 60, and a lower end portion of the wheel apron 61 is connected to the front side frame 43.

  The front side frame 43 is connected to the front ends of the left and right side sills 42 and is formed to extend in the front-rear direction. The front side frame 43 supports the engine of the vehicle A via an engine mount (not shown).

  A dash upper panel 62 that extends in the vehicle width direction and partitions the engine room and the vehicle compartment is also connected to the front end portion of the front pillar lower 5b. A lower end portion of the dash upper panel 62 is connected to a dash lower panel 63 that is inclined rearward and obliquely downward, and a rear end portion of the dash lower panel 63 is connected to the floor panel 41 via a kick-up panel 64.

  A cowl box 66 that extends in the vehicle width direction and supports the lower end of the windshield 65 is fixedly supported on the upper edge of the dash upper panel 62.

  A dash cross member 46 that extends in the vehicle width direction and connects the left and right front pillar lowers 5b and forms a closed cross section with the dash upper panel 62 is provided at the middle portion of the dash upper panel 62 in the vertical direction. It has been.

  Side sill extensions 70 (see FIG. 7) extending in the vehicle front-rear direction are connected to the rear end portions of the side sills 42, and the rear side frame is connected to the rear end portions of the side sills 42 via the side sill extensions 70. Has been.

  A wheel house 60 is provided behind the side sill extension 70 and outside the rear side frame in the vehicle width direction. The upper part of the wheel house 60 is formed so as to form an arch shape when viewed from the side of the vehicle, and on the upper side of the wheel house 60 is formed a cab side inner panel 71 that forms the left and right side wall surfaces of the rear luggage compartment. Yes.

  A cab side outer panel 72 constituting an outer plate of the vehicle body is provided on the outer side in the vehicle width direction of the wheel house 60. The front and rear edge portions of the cab side outer panel 72 are welded to the front and rear edge portions of the cab side inner panel 71, respectively, and a closed cross section extending in a substantially vertical direction is formed between the panels. The cab side outer panel 72 and the cab side inner panel 71 constitute the rear pillar lower 7b.

  A front joint portion between the cab side outer panel 72 and the cab side inner panel 71 extends along the rear edge of the front door opening 8.

  As shown in FIGS. 8 and 9, an upper end opening 37 that extends in the vehicle front-rear direction and opens upward is formed at the upper ends of the panels 71 and 72. In the upper end opening 37, the insertion portion 27 of the rear pillar upper 7a is fitted and bonded. The edge of the upper end opening 37 on the outer side in the vehicle width direction is constituted by a hemming portion 73 formed at the upper end of the outer panel 72. The hemming portion 73 is formed by bending the upper end portion of the outer panel 72 downward. The hemming portion 73 is coupled to the cab side inner panel 71 via three stopper members 74 (described later) arranged in the front-rear direction.

  Thereby, the upper end part of the cab side outer panel 72 can be firmly connected to the upper end part of the cab side inner panel 71 via the stopper member 74. Therefore, the opening of the upper end opening 37 in the vehicle width direction can be prevented, and as a result, the support rigidity of the rear pillar upper 7a in the opening 37 can be improved.

  The stopper member 74 prevents the opening of the upper end opening 37 as described above, and contacts the lower end of the rear pillar upper 7a for positioning. The stopper member 74 includes a horizontal support portion 74a that extends substantially horizontally in the front-rear direction, a lower vertical wall portion 74b that extends downward from an inner end in the vehicle width direction of the horizontal support portion 74a, and the horizontal support portion 74a. And an upper vertical wall 74c extending upward from the outer end in the vehicle width direction. The lower vertical wall portion 74 b is overlapped and welded to the cab side inner panel 71, and the upper vertical wall portion 74 c is overlapped and welded to the hemming portion 73 of the cab side outer panel 72.

  As described above, the insertion portion 27 to be inserted into the upper end opening 37 is formed at the lower end of the rear pillar upper 7a. The insertion direction of the insertion portion 27 with respect to the upper end opening 37 coincides with the inclination direction of the center pillar 6.

  Both side surfaces 27a, 27b in the thickness direction (vehicle width direction) of the insertion portion 27 are formed in a tapered shape that inclines inward toward the lower side. Thereby, the insertion property to the upper end opening part 37 of the insertion part 27 can be improved. In a state where the vehicle body upper body 101 is assembled to the vehicle body lower body 102, the lower end surface of the rear pillar upper 7a (the lower end surface of the insertion portion 27) abuts on the horizontal support portion 74a, thereby positioning the rear pillar upper 7a in the vertical direction. Is made. The rear pillar upper 7a is joined to the panels 71 and 72 via the adhesive 75 in the state where the rear pillar upper 7a is positioned. In the present embodiment, an adhesive application surface (surface portion indicated by hatching in FIG. 8) is formed on the opposing surfaces of both panels 71 and 72. Then, both side surfaces 27a and 27b in the thickness direction of the insertion portion 27 of the rear pillar upper 7a are joined to both panels 71 and 72 via an adhesive 75 applied to the adhesive application surface, respectively.

  As shown in FIG. 7, the wheel house 60 includes a wheel house outer 81 and a wheel house inner 82 that are disposed to face each other in the vehicle width direction. The peripheral part of the wheel house outer 81 and the peripheral part of the wheel house inner 82 are welded and joined to each other. The lower end portion of the cab side outer panel 72 is joined to the lower end portion of the wheel house outer 81. The lower end of the wheel house inner 82 is joined to the rear side frame. The rear ends of both side sills 42 are connected to each other by a NO3 cross member 45c extending in the vehicle width direction at the lower part of the rear seat 4 (see FIG. 2), and both rear side frames are also NO4 cross members extending in the vehicle width direction. They are connected to each other by 45d. A rear seat lower panel 83 is disposed between the NO3 and NO4 cross members 44c and 44d, and a rear floor pan 84 is disposed on the vehicle rear side of the NO4 cross member. The left and right cab side inner panels 71 are connected by a pair of front and rear rear deck cross members 47 extending in the vehicle width direction behind the rear seat 4. A rear parcel board 85 is provided between the rear deck cross members 47 and 47 to partition the vehicle compartment and the cargo compartment. The rear deck cross member 47 on the rear side supports the lower end portion of the rear window 86 (see FIG. 2).

  A center pillar lower 6b is formed at a substantially central portion in the front-rear direction of each of the side sills 42, and is inclined slightly rearward toward the upper side.

  As shown in FIG. 10, the center pillar lower 6b is formed by joining a center pillar outer 90 and a center pillar inner 91 having a hat-like cross section so as to form a closed cross section between them.

  In the center pillar lower 6b, there is provided a center pillar rain (not shown) having a hat-like cross section that extends close to the center pillar outer 90 and substantially parallel thereto. The front and rear edge portions of the center pillar outer 90 are respectively welded to the front and rear edge portions of the center pillar outer 90 with the center pillar rain interposed therebetween. The front joint of the center pillar lower 6b extends along the rear edge of the front door opening 8, and the rear joint of the center pillar lower 6b is the front edge of the rear door opening. It is extended along.

  The upper end portion of the center pillar lower 6b is opened upward to form a substantially hexagonal upper end opening portion 36, and the lower end portion of the center pillar upper 6a is fitted into the upper end opening portion 36 and bonded thereto. . In the center pillar lower 6b, there is provided a stopper member 93 which contacts the lower end portion of the center pillar upper 6a and performs positioning in the height direction.

  The stopper member 93 has a substantially hexagonal horizontal support portion 93a corresponding to the cross-sectional shape of the center pillar lower 6b, and six vertical wall portions 93b extending downward from each side portion of the horizontal support portion 93a. ing. Each vertical wall portion 93b is welded to the inner wall surface of the center pillar lower 6b. A circular through hole 93f is formed in the approximate center of the horizontal support portion 93a. Thereby, welding of each vertical wall part 93b can be easily performed using the through-hole 93f.

  As described above, the insertion portion 26 to be inserted into the upper end opening 36 is formed at the lower end of the center pillar upper 6a. The insertion direction of the insertion portion 26 with respect to the upper end opening 36 coincides with the inclination direction of the center pillar 6. The insertion portion 26 is formed by reducing the diameter of the lower end portion of the center pillar upper 6a toward the lower side. Thereby, the insertability with respect to the upper end opening part 36 of the insertion part 26 can be improved.

  In a state in which the vehicle body upper body 101 is assembled to the vehicle body lower body 102, the lower end surface of the center pillar upper 6a (the lower end surface of the insertion portion 26) abuts on the horizontal support portion 93a, thereby causing the center pillar upper 6a to move in the vertical direction. Is positioned. The center pillar upper 6a is joined to the center pillar lower 6b via the adhesive 94 (see FIG. 15) in a state where the center pillar upper 6a is positioned. On the inner wall surface of the center pillar lower 6b, an adhesive application surface (surface portion indicated by hatching in FIG. 10) is formed over the entire circumference. And the outer wall surface of the insertion part 26 of the center pillar upper 6a is joined to the center pillar lower 6b via the adhesive 94 applied to the adhesive application surface.

  A lower flange portion 111 is formed at a portion forming the outer peripheral edge of each of the door openings 8 and 9 in the lower body 102 of the vehicle body by using a joining portion generated when welding a steel plate (panel). Specifically, the lower flange portion 111 formed in the front door openings 8 and 9 includes a rear edge portion (joint portion) on the rear side of the front pillar lower 5b and an end edge portion (joint portion) on the upper side of the side sill 42. ) And the front edge portion (joint portion) of the center pillar lower 6b are connected substantially continuously.

  The lower flange portion 111 formed in the rear door opening 9 includes a rear edge portion (joint portion) on the rear side of the center pillar lower 6b, an end edge portion (joint portion) on the upper side of the side sill 42, and a rear pillar. The front edge portion (joint portion) of the lower 7b is continuously connected.

  The lower flange part 111 formed in each door opening part 8 and 9 is a door opening part by contact | abutting to the peripheral part via the welt seaming 113 (refer FIG. 12) in the state which the side doors 1 and 2 closed. 8 and 9 are sealed. Here, in the case where the vehicle body upper body 101 is integrally formed of a resin material as in this embodiment, the flange portion cannot be formed in the vehicle body upper body 101 from the viewpoint of moldability. For this reason, a flange part cannot be formed over the perimeter of the door opening parts 8 and 9, and there exists a problem that the door seal structure using a flange part cannot be employ | adopted. Therefore, in the present embodiment, a separate flange forming member 114 is joined to each portion along the door openings 8 and 9 in the vehicle body upper body 101, so that the entire circumference of the door openings 8 and 9 is obtained. A flange portion is formed to enable a door seal structure using the flange portion.

  As shown in FIGS. 12 to 14, the flange forming member 114 is formed by, for example, pressing a plate-like metal member. Specifically, the flange forming member 114 includes a main adhesive portion 114a that is bonded to a portion of the vehicle body upper body 101 that forms the inner peripheral surfaces of the door openings 8 and 9, and an inner side in the vehicle width direction of the main adhesive portion 114a. Connected to the edge portion, is connected to the projecting flange portion 114b projecting radially inward of the door openings 8 and 9, and to the edge portion on the outer side in the vehicle width direction of the main adhesive portion 114a. And a seal contact surface portion 114c protruding outward in the radial direction. A surface on the outer side in the vehicle width direction of the seal contact surface portion 114c forms a seal surface 114f that contacts the weather strip 123 when the side doors 1 and 2 are in the closed state. Further, the inner surface in the vehicle width direction of the seal contact surface portion 114 c forms an adhesive surface 114 g that is bonded to the outer surface in the vehicle width direction of the vehicle body 100.

  The flange forming member 114 attached to the front door opening 8 is formed to have a substantially V shape corresponding to the contour shape of the upper half of the door opening 8 (the portion above the belt line 11). (See FIGS. 2 and 11). The flange forming member 114 attached to the rear door opening 9 is formed to have a substantially U-shape corresponding to the contour shape of the upper half of the door opening 9.

  In a state in which the flange forming member 114 is attached to each door opening 8 and 9, the lower flange portion 111 formed on the vehicle body lower body 102 and the protruding flange portion 114 b formed on the flange forming member 114 include the door opening portion. A flange portion 120 is formed which is continuously connected in the circumferential direction of 8 and 9 and protrudes radially inward over the entire circumference of the door opening 8 and 9.

  Both side surfaces of the flange portion 120 in the thickness direction form smooth surfaces having no step. That is, the flange portion 120 is substantially continuously connected at the boundary portion between the lower flange portion 111 and the protruding flange portion 114b (see FIG. 14). And the said welt seaming 113 is arrange | positioned over the perimeter so that each flange part 120 may be clamped (refer FIG.12 and FIG.13). In FIG. 13, reference numeral 126 denotes a top ceiling that forms the ceiling surface of the passenger compartment.

  Here, in a state where the flange forming member 114 is mounted on the door openings 8 and 9, stepped portions are generated at the boundary portions (connecting portions) between the pillar uppers 5a to 7a and the pillar lowers 5b to 7b. In the embodiment, the seal tape 150 is attached to a portion of the step portion located on the seal line S (see FIG. 2). That is, as shown in FIGS. 14 and 15, the stepped portion formed by the seal surface 114 f of the flange forming member 114 and the outer surface in the vehicle width direction of the pillar lowers 5 b to 7 b (only the center pillar lower 6 b is shown in the figure). A seal tape 150 is attached to 122.

  Here, the seal line S is set along the peripheral edge of the door openings 8 and 9 in order to prevent water (raindrops, etc.) from entering the vehicle interior with the side doors 1 and 2 closed. It is a virtual line. A weather strip 123 that is in contact with the vehicle body 100 along the seal line S in the closed state is attached to the side doors 1 and 2 (see FIGS. 12, 13, and 15). The weather strip 123 is attached over the entire circumference of the side doors 1 and 2. In FIG. 12, reference numeral 124 denotes a window glass provided on each side door 1 and 2, and reference numeral 125 denotes a glass run channel that seals a gap between each window glass 124 and the sash 1a, 2a.

  The seal tape 150 is used to improve the sealing performance of the door openings 8 and 9 by filling the steps generated on the seal line S. As shown in FIG. 15, the sticking surface 150 a of the seal tape 150 is formed in a step shape corresponding to the shape of the step portion 122 so that no gap is generated between the seal tape 150 and the step portion 122. That is, the sticking surface 150 a is formed in a stepped shape that engages with the stepped portion 122.

  On the other hand, the surface 150b opposite to the sticking surface 150a of the seal tape 150 constitutes a seal surface 150b that comes into contact with the weather strip 123 when the side doors 1 and 2 are closed, and is formed into a smooth and smooth surface. ing. In the present embodiment, the seal surface 150b is composed of two inclined surfaces 150c and 150d that are smoothly connected via a circular arc surface at the center position in the vertical direction. The inclined surfaces 150c and 150d are gentle inclined surfaces having an inclination angle (an inclination angle with respect to the sticking surface 150a) of, for example, 10 ° or less.

  When assembling the vehicle body 100 (see FIG. 11) configured as described above, the lower body 102 is fixed with a jig, and an adhesive is applied to the adhesive application surfaces set on the pillar lowers 5b to 7b. Apply. And after apply | coating adhesive agent, the vehicle body upper body 101 is made to approach from the direction which inclines back 4 degrees toward the vehicle body lower body 102 at 4 degree | times upwards, and inserts 25-27 of each pillar upper 5a-7a. Are inserted into the upper end openings 35 to 37 of the pillar lowers 5b to 7b, respectively. And when the insertion parts 25-27 contact | abut to the stopper members 55, 74, and 93 provided in each pillar lower 5b-7b, this approach movement of the vehicle body upper body 101 is stopped.

  Then, after assembling the vehicle body upper body 101 to the vehicle body lower body 102, the flange forming member 114 is fitted and fixed to the door openings 8 and 9 of the vehicle body upper body 101, and then the flange forming member 114, A seal tape 150 is attached to the stepped portion 122 generated at the boundary with the pillar lowers 5b to 7b. Then, after sticking the seal tape 150, the side doors 1 and 2 are attached to the left and right side surfaces of the vehicle body 100.

  Each of the side doors 1 and 2 is attached to the vehicle body 100 via a pair of upper and lower hinge fittings 10 attached to the front end portion thereof. As shown in FIG. 16, each hinge fitting 10 includes a vehicle body side fitting 10 a attached to the vehicle body lower body 102, a door side fitting 10 b attached to each side door 1, 2, and a hinge shaft 14. .

  The vehicle body side metal fitting 10a includes a fixing plate 13 fixed to the upper and lower ends of the front pillar lower 5b by bolts 141, and a pair of support plates 15 projecting outward in the vehicle width direction from both upper and lower ends of the fixing plate 13. It consists of Both ends of the hinge shaft 14 are fixedly supported by the pair of support plates 15. In a state where the hinge shaft 14 is supported by the support plate 15, the axial center direction of the hinge shaft 14 coincides with the vertical direction.

  The door side metal fitting 10b is composed of a U-shaped portion 16 supported so as to be rotatable around the hinge shaft 14, and a fixing plate 17 connected to both ends of the U-shaped portion 16 on the U-shaped opening side. Yes. The fixing plate 17 is fixed to the front end portions of the side doors 1 and 2 with bolts 142. Each of the side doors 1 and 2 can be rotated in the horizontal direction around the hinge shaft 14 together with the U-shaped portion 16.

  A latch mechanism 95 (FIG. 3) fixes the side doors 1 and 2 in a closed state by engaging with a striker 18 (see FIG. 1) provided on the vehicle body side at the rear ends of the side doors 1 and 2. Reference) is provided.

  The striker 18 that engages with the latch mechanism 95 of the front side door 1 is fixed to a surface facing the front door opening 8 of the center pillar lower 6b. The striker 18 that engages with the latch mechanism 95 of the rear side door 2 is fixed to a surface facing the rear door opening 9 of the rear pillar lower 7b.

  As shown in FIG. 17, the seat belt device 30 is provided in a seat portion (a driver seat and a passenger seat in the case of the front seat 3) adjacent to the door openings 8 and 9 among the front seat 3 and the rear seat 4. It has been. The seat belt device 30 is a so-called three-point seat belt device and includes a belt-like shoulder belt 130 for restraining an occupant seated on the seats 3 and 4.

  The shoulder belt 130 is inserted into the shoulder anchor 131 and has one end wound around the belt retractor 132 and the other end fixed to the floor anchor 133. A tongue 134 is inserted into the shoulder belt 130, and the tongue 134 can be attached to and detached from a buckle (not shown) fixed to the seats 3 and 4.

  The shoulder belt 130 drawn upward from the belt retractor 132 is folded back in the vicinity of the shoulder of the occupant by the shoulder anchor 131 and is fixed to the buckle via the tongue 134 in a state of being hanged from the shoulder of the occupant to the waist. .

  The floor anchor 133 of the seat belt device 30 provided on the front seat 3 is fixed to the intermediate portion in the front-rear direction of the side sill 42 with bolts. The belt retractor 132 is fixed to the lower end portion of the center pillar inner 91 with a bolt. The shoulder anchor 131 is fixed to the upper end of the center pillar upper 6a with a bolt. Needless to say, the belt retractor 132 and the shoulder anchor 131 may be fixed by, for example, welding without being fixed by bolts.

  The belt retractor 132, the shoulder anchor 131, and the shoulder belt 130 positioned between them are covered from the passenger compartment side by the center pillar trim 19 (see FIG. 12) so that they cannot be seen from the passenger compartment. An opening 19a for pulling out the shoulder belt 130 into the vehicle interior is formed at the upper end of the center pillar trim 19, and a slide cover 19b configured to be slidable in the vertical direction is provided in the opening 19a. ing.

On the other hand, the floor anchor 133 of the seat belt device 30 provided on the rear seat 4 is fixed to the cab side inner panel 71 constituting the side wall surface of the luggage compartment by bolts. . The shoulder anchor 131 is fixed to the upper end portion of the rear pillar upper 7a with a bolt. The belt retractor 132, the shoulder anchor 131, and the shoulder belt 130 positioned therebetween are covered from the vehicle interior side by a rear pillar trim (not shown). Similarly to the center pillar trim 19, the rear pillar trim is provided with an opening for pulling out the shoulder belt 130 and a slide cover for closing the opening.

  As described above, in the first embodiment, the vehicle body 100 is divided into the upper and lower bodies by the upper body 101 and the lower body 102, and the external force input from the road surface while the vehicle is traveling is relatively large. The vehicle body lower body 102 (platform portion), which is sometimes subjected to a heavy load, is made of a highly rigid metal material, while the vehicle body upper body 101 is integrated with a resin material, which has a relatively small external force applied during vehicle running or vehicle collision. It was made to mold. As a result, the weight of the vehicle body 100 can be reduced without impairing the collision safety (vehicle body rigidity) of the vehicle.

  In the first embodiment, the flange forming member 114 is assembled to the door openings 8 and 9, so that the protruding flange portion 114 b of the flange forming member 114 and the lower flange portion 111 formed on the vehicle body lower body 102 are provided. Cooperated to form the flange portion 120 over the entire circumference of the door openings 8 and 9. Thereby, even when the vehicle body upper body 101 is formed of a resin integrated molded product in which it is difficult to mold the flange portion, the flange portion 120 can be formed over the entire circumference of the peripheral edge portion of the door openings 8 and 9. . Therefore, the welt seaming 113 can be attached over the entire circumference of the flange portion 120 to seal the door openings 8 and 9 together with the weather strip 123. Therefore, the sealing performance of the door openings 8 and 9 can be improved as much as possible.

(Embodiment 2)
18 to 20 show a second embodiment of the present invention in which the configuration of the flange forming member 114 is different from that of the first embodiment. In addition, about the component substantially the same as FIG.11, FIG14 and FIG.15, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted suitably.

  That is, in the second embodiment, the flange forming member 114 is formed in a frame shape corresponding to the contour shape of the door openings 8 and 9. Specifically, the flange forming member 114 includes a main adhesive portion 114a that is bonded to a portion of the vehicle body 100 that forms the inner peripheral surface of each door opening 8 and 9, and an end on the vehicle width direction inner side of the main adhesive portion 114a. A protruding flange portion 114b that protrudes from the edge to the inside in the radial direction of the door opening portions 8 and 9 over the entire circumference, and a radial direction of the door opening portions 8 and 9 from the end edge portion on the outer side in the vehicle width direction of the main adhesive portion 114a And a seal contact surface portion 114c protruding outward. In FIG. 20, the shape of the flange forming member 114 is simplified and only its entire shape is shown.

  In a state where the flange forming member 114 is assembled to the door openings 8 and 9, the protruding flange portion 114b is superposed and bonded to the lower flange portion 111 from the outside in the vehicle width direction (see FIG. 18).

  The seal contact surface portion 114c is formed to coincide with the seal line S (see FIG. 2) in a vehicle side view. The outer surface in the vehicle width direction of the seal contact surface portion 114c forms a seal surface 114f that contacts the weather strip 123 when the side doors 1 and 2 are in the closed state. Further, the inner surface in the vehicle width direction of the seal contact surface portion 114 c forms an adhesive surface 114 g that is bonded to the outer surface in the vehicle width direction of the vehicle body 100.

  The seal contact surface portion 114c is formed so as to cover the stepped portion 115 on the outer surface of the pillar generated at the connecting portion between each pillar upper 5a to 7a and each pillar lower 5b to 7b. An adhesive surface 114g (surface 114g opposite to the seal surface 114f) of the seal contact surface portion 114c is formed in a stepped shape that engages with the stepped portion 115.

  The method of assembling the vehicle body 100 is the same as that of the first embodiment as shown in FIG.

  In the second embodiment, similar to the first embodiment, the weight can be reduced while improving the rigidity of the vehicle body with a simple configuration.

  In the second embodiment, the door is formed by the cooperation of the lower flange portion 111 formed on the lower body 102 of the vehicle body and the projecting flange portion 114b that is overlapped and bonded to the lower flange portion 111 in the vehicle width direction. The flange portion 120 is formed over the entire circumference of the openings 8 and 9. Thereby, even when the vehicle body upper body 101 is formed of a resin integrated molded product, the flange portion 120 can be formed over the entire periphery of the peripheral edge portion of the door openings 8 and 9. Therefore, like the first embodiment, the welt seaming 113 can be attached over the entire circumference of the flange portion 120 to improve the sealing performance of the door openings 8 and 9.

  Moreover, in the said Embodiment 2, the continuity of the circumferential direction of the protrusion flange part 114b (flange part 120) can be improved by making the flange formation member 114 into the frame-shaped integrally molded product. Thereby, the sealing performance of the door openings 8 and 9 and the appearance around the door openings 8 and 9 can be improved.

  In the second embodiment, the seal contact surface portion 114 c is formed on the flange forming member 114, so that the seal contact surface portion 114 c can be separated from the vehicle body 100. Therefore, even when the upper body 101 and the lower body 102 are made of different materials as in the above embodiment, the seal contact surface portion 114c is made of the same material over the entire periphery of the door openings 8 and 9. Can be formed. Therefore, the sealing characteristics on the sealing surface 114f can be made uniform, and the sealing performance of the door openings 8 and 9 can be improved as much as possible.

  Further, in the second embodiment, the seal contact surface portion 114c covers the stepped portion 115 on the outer surface of the pillar generated at the connecting portion between the pillar uppers 5a to 7a and the pillar lowers 5b to 7b. It is possible to prevent the weather strip 123 from directly contacting the stepped portion 115 when 1 and 2 are closed. Therefore, the sealing performance by the weather strip 123 is not impaired at the step portion 115.

(Other embodiments)
The configuration of the present invention is not limited to the above embodiment, but includes various other configurations. In other words, in each of the above embodiments, the two door openings 8 and 9 are formed on both side surfaces in the vehicle width direction of the vehicle A, but the present invention is not limited to this, and three or more door openings are formed. You may make it form only one.

  In each of the above embodiments, the side sill rain 52 for reinforcement is provided in the side sill 42, but this may be eliminated. Similarly, the center pillar rain in the center pillar 6 may be abolished.

  In each of the above embodiments, the vehicle body upper body 101 is made of carbon fiber reinforced resin, but is not limited thereto, and may be made of, for example, glass fiber reinforced plastic (GFRP).

  Further, in each of the above embodiments, the vehicle body lower body 102 is made of a steel plate, but may be made of aluminum, for example.

  Moreover, in each said embodiment, although the said flange formation member 114 is comprised by the main adhesion part 114a, the protrusion flange part 114b, and the seal contact surface part 114c, it is not restricted to this, For example, embodiment In 1, the seal contact surface portion 114c can be eliminated, and in the second embodiment, the main adhesive portion 114a and the seal contact surface portion 114c can be eliminated. That is, the flange forming member 114 may have any configuration as long as the protruding flange portion 114b can be assembled to the door openings 8 and 9.

  INDUSTRIAL APPLICABILITY The present invention is useful for a vehicle body structure in which door openings are formed on both side surfaces in the vehicle width direction of the vehicle. It is useful for a vehicle body structure of a vehicle that is surrounded by a side portion and a door opening upper side portion and a door opening lower side portion arranged in the vertical direction.

1 Front side door
2 Rear side door 5 Front pillar (door opening front side)
5a Front pillar upper (upper part)
5b Front pillar lower (lower part)
6 Center pillar (door opening front side, door opening rear side)
6a Center pillar upper (upper part)
6b Center pillar lower (lower part)
7 Rear pillar (door opening rear side)
7a Rear pillar upper (upper part)
7b Rear pillar lower (lower part)
8 Door opening 9 Door opening 35 Upper end opening 36 of rear pillar lower Upper end opening 37 of center pillar lower Upper end opening 42 of rear pillar lower Side sill (lower side of door opening)
53 Hinge pillar outer (metal plate)
54 Hinge pillar inner (metal plate)
71 Cabside inner panel (metal plate)
72 Cabside outer panel (metal plate)
90 Center pillar outer (metal plate)
91 Center pillar inner (metal plate)
100 car body 101 car body upper body
102 Car body lower body 111 Lower flange part 114 Flange forming member (frame member)
114b Protruding flange (upper flange)
114c Seal contact surface part 115 Step part 120 Flange part

Claims (4)

A vehicle body structure in which door openings are formed on both sides in the vehicle width direction of the vehicle,
The door opening is surrounded by a door opening front side and a door opening rear side facing the vehicle longitudinal direction, and a door opening upper side and a door opening lower side facing the vertical direction,
The door opening front side and the door opening rear side are each formed by connecting an upper divided part and a lower divided part which are separate from each other,
The upper divided portion of the door opening front side portion, the upper divided portion of the door opening rear side portion, and the door opening upper side portion are integrally formed of a resin member,
The lower divided portion of the door opening front side portion, the lower divided portion of the door opening rear side portion, and the door opening lower side portion are each composed of at least two metal plates arranged in the vehicle width direction. Are formed in a closed cross-sectional shape by joining edge portions extending along the peripheral edge of the door opening of each metal plate,
Of the joint portions of the two metal plates, the joint portion facing the door opening portion constitutes a lower flange portion extending along the peripheral edge of the door opening portion and projecting radially inward thereof,
Attached to the part facing the door opening in each of the upper divided part of the door opening front side part, the upper divided part of the door opening rear side part, and the door opening upper side part, and the lower flange part, A vehicle body structure for a vehicle, comprising a separate upper flange portion that forms a flange portion that protrudes radially inward of the door opening portion and extends along the entire periphery thereof. The vehicle body structure according to claim 1,
A frame-shaped member that is overlapped and joined to the lower flange portion in the vehicle width direction and extends along the entire periphery of the door opening,
The vehicle body structure of the vehicle, wherein the upper flange portion is formed as a part of the frame-shaped member. In the vehicle body structure according to claim 2,
A side door that opens and closes the door opening;
A seal member that seals between the side door and each of the side portions forming the door opening when the side door is in a closed state is provided at a peripheral portion of the surface portion of the side door on the vehicle interior side. Installed,
The frame-shaped member has a seal contact surface portion that contacts the seal member when the side door is in a closed state, and is formed over the entire circumference of the frame-shaped member. Body structure. In the vehicle body structure according to claim 3,
The upper end portion of the lower divided portion of the door opening front side portion and the upper end portion of the lower divided portion of the door opening rear side portion each form an upper end opening portion that opens upward,
The lower end portion of the upper divided portion of the door opening front side portion is fitted and fixed to the upper end opening portion of the lower divided portion of the door opening front side portion,
The lower end part of the upper divided part of the door opening rear side part is fitted and fixed to the upper end opening part of the lower divided part of the door opening rear side part,
The vehicle body structure of a vehicle, wherein the seal contact surface portion is formed so as to cover a step portion generated on an outer surface side in a connecting portion between each of the upper divided portions and the lower divided portions.

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