JP2007216725A - Vehicle body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body structure capable of allowing a door of a different opening/closing system to be fitted thereto while effectively preventing any careless opening of the door when any vibration or impact load generated when a vehicular slide door is moved is applied. <P>SOLUTION: The vehicle body structure comprises a slide door 4 for opening/closing a door opening part 3 formed in a vehicle B, and a plurality of locking units consisting of a latch and a striker for holding the slide door at the closing position of closing the door opening part. First and third locking units J1, J3 located on the closing direction side of the door opening part out of a plurality of locking units are arranged above and below a first pillar 7 for connecting upper and lower portions of the door opening part to each other; and a second locking unit J2 is arranged close to a second pillar 102 located on the opening direction side of the door opening part, respectively. A reinforcing member 160 having a first fitting unit 160b to fit a latch or a striker and a second fitting unit 160c forming a hinge mounting unit is provided between the latch or the striker and the first pillar 7, or on the inner side of the first pillar 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle body structure including a door that opens and closes a door opening formed in a vehicle.

  On the side surface of the vehicle, a door opening that forms an entrance is provided. A door that opens and closes the door opening is mounted in the vicinity of the door opening. These door opening / closing methods include a pivoting opening / closing type using a hinge and a sliding type using a support unit having a slide mechanism. In the structure of a vehicle equipped with a sliding door, to slide the sliding door in the longitudinal direction of the vehicle, it slides into the side roof rail that forms the upper part of the door opening, the side sill that forms the lower part of the door opening, and the center of the sliding door A mechanism is often provided. In particular, when the slide mechanism is provided in the side roof rail or the side sill, the side roof rail or the side sill has a large cross section, the height of the door opening is limited, or the bulge to the vehicle interior tends to increase.

Therefore, as shown in Patent Document 1, there has been proposed a vehicle body structure in which a slide door is slidably supported in the vehicle front-rear direction only at its central portion, and the slide mechanism is eliminated from the side roof rail or the side sill.
Some vehicles have a center pillar between the front door and the rear door, and some vehicles do not have a center pillar for the purpose of improving getting on and off. As an example in which the center pillar is not provided on the vehicle body side, for example, Patent Document 2 is cited. In a vehicle body structure having no center pillar, when the door is held in a closed state, the latch and the striker are fixed to the panel rear end portion of the front door and the panel front end portion of the rear door, respectively.

Patent No. 2049752 JP 2004-148024 A

When a sliding door is used in a certain vehicle, it is a body structure dedicated to the sliding door, so it is not possible to easily install a hinged opening / closing door in place of the sliding door, and it is necessary to develop the vehicle individually. There wasn't.
An object of this invention is to provide the vehicle body structure which can also mount | wear with the door of a different opening-and-closing system.

  In order to achieve the above object, according to the first aspect of the present invention, in a vehicle body structure having a holding mechanism for holding a door that opens and closes a door opening formed in a vehicle, the door opening is provided on one of the front side and the rear side of the vehicle. A first pillar provided; a reinforcing member having a first mounting portion that contacts a surface of the first pillar on the door opening side; and a second mounting portion that contacts a surface outside the vehicle; The mechanism is characterized in that it is mounted on either the first mounting portion or the second mounting portion of the reinforcing member.

  According to a second aspect of the present invention, in the vehicle body structure according to the first aspect, the holding mechanism includes a lock portion that locks the door and the first pillar, and the lock portion is attached to the first mounting portion. .

  According to a third aspect of the present invention, in the vehicle body structure according to the first aspect, the holding mechanism includes a hinge that allows the door to turn freely, one end of the hinge is attached to the door, and the other end is the second of the reinforcing member. It is characterized by being attached to the mounting part.

  According to a fourth aspect of the present invention, in the vehicle body structure of the second aspect, the door is a sliding door provided with a support unit that is movably supported in the longitudinal direction of the vehicle, and the holding mechanism is arranged in the vertical direction of the first pillar. The first and third lock portions are provided, and the second pillar provided on the other side of the vehicle front side or the rear side of the door opening, and the second pillar and the slide door are locked. And a second lock portion, and the support portion of the support unit is arranged in a triangular region formed by each lock portion.

  According to the present invention, the reinforcing member having the first mounting portion that contacts the surface of the first pillar on the door opening portion side and the second mounting portion that contacts the surface of the first pillar outside the vehicle is provided. Since the holding mechanism is attached to the reinforcing member, the door can be attached with different opening and closing methods, and the cost can be reduced.

  According to the present invention, the door can be firmly locked to the first pillar even when the holding mechanism is provided on the surface on the door opening side. It becomes a possible structure, and it can aim at cost reduction.

  According to the present invention, the door can be firmly locked to the first pillar even if the holding mechanism is provided on the outer surface of the vehicle. For example, even a hinge door can be mounted. Cost reduction can be achieved.

  According to the present invention, the sliding door includes a support unit that is movably supported in the vehicle front-rear direction, and when the door opening is closed by the sliding door, the door is a first to a third locking portion. Since it is held in a closed state and the sliding door is supported in a triangular region formed by each lock portion, while effectively suppressing the occurrence of rotational moment in the closed state and reducing the occurrence of vibrations, The locked state of the sliding door can be firmly held, and inadvertent opening of the door when an impact load is applied can be effectively prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a vehicle body structure of a vehicle B having a center pillar 7. On the left and right of the vehicle B, a front entrance / exit 1 and a rear entrance 3 are formed as spaces. The front entrance / exit 1 and the rear entrance 3 are opened and closed by a front door 2 and a rear door 4. FIG. 1 shows the left side surface of the vehicle B. The front doors 2 and the rear doors 4 are each formed with a weather strip (not shown) continuously attached to the outer peripheral edge so as to ensure a sealing property with the peripheral edge portions of the facing entrances 1 and 3.

  Each front door 2 is hinged to the vehicle body located at the front side of the front entrance / exit 1 at the upper and lower portions of the front end, and the lock portion i1 at the rear end serving as a rotation end is connected to the center pillar 7 using a latch and striker (not shown). It is locked in the middle so that it can be detached.

  The rear door 4 is a slide door, and is supported by a swing slide unit U as a support unit described later so as to be movable in the vehicle front-rear direction X. From the door closing position D1 that closes the rear entrance 3 and the door closing position D1 It is movably supported at a swing position D2 protruding out of the vehicle and an open position D3 moved rearward from the swing position D2.

  Around the rear entrance / exit 3, lock portions J <b> 1 and J <b> 3 as holding mechanisms for holding the front side of the rear door 4 and a lock portion J <b> 2 for holding the rear side are disposed at a door closing position D <b> 1 that closes the rear entrance / exit 3. ing. Each lock portion is constituted by a combination of a known latch and striker.

  In this embodiment, the lock portion J1 is located on the closing direction side of the rear entrance 3 and is a center pillar 7 serving as a first pillar that connects the roof side rail 10 and the side sill 101 that constitute the upper and lower portions of the door opening. The lock portion J2 is a first lock portion disposed closer to the rear pillar 102, which is a second pillar located on the opening direction side of the rear entrance 3 J3 is disposed near the center pillar 7 and constitutes a third lock portion disposed below the lock portion J1.

  The lock part J1 and the lock part J2 are disposed above a door support rail 22 (to be described later) constituting the swing slide unit U, and the lock part J3 is disposed below the door support rail 22. In this embodiment, the lock portions J1, J2, and J3 are arranged on the peripheral portion of the rear entrance 3 so that the lock portion J2 is formed in a triangular shape having a vertex.

  As shown in FIG. 5, the rear door 4 is removably locked to the center pillar 7 at the door closing position D1 using the latch 120 and the striker 121 constituting the lock portion J1, and as shown in FIG. 7 is releasably locked to the rear pillar 102 using the latch 122 and striker 123 constituting the portion J2, and is releasably locked to the side sill 101 using the latch 125 and striker 126 constituting the lock portion J3 as shown in FIG. Is done.

  In this embodiment, the striker 121 of the lock portion J1 is fastened and fixed to the outer panel 7a of the center pillar 7 with bolts 104, and the striker 123 of the lock portion J2 is fastened and fixed to the outer panel 102a of the rear pillar 102 with bolts 107. The striker 126 of the lock portion J3 is fastened and fixed to the outer panel 7a of the center pillar 7 with bolts 161 and nuts 162.

  The latch 120 of the lock part J1, the latch 122 of the lock part J2, and the latch 125 of the lock part J3 are respectively fixed to the inner panel 21 of the rear door 4 facing the striker 121 of each lock part. In this embodiment, as shown in FIG. 1, the lock portions J1, J2, and J3 are disposed on the peripheral portion of the rear entrance 3 so that the lock portion J2 is formed in a triangular shape having a vertex.

  In this embodiment, a reinforcing member 160 is mounted on the inner side of the center pillar 7 facing the strikers 121 and 126 as shown in FIGS. As shown in FIG. 10, the reinforcing member 160 is formed with a first mounting portion 160b for mounting the striker 121, and a second mounting portion 160c that is a hinge mounting portion and can also be mounted with the striker 126. The first mounting portion 163 has holes 160a and 161a through which a plurality of bolts 104 are inserted, and the second mounting portion 160c has a plurality of bolts 161 through which a hinge 126 and a base 126A of a striker 126 to be described later are inserted. Holes 160d and 160e are formed. Nuts 162... Are fixed to the reinforcing member 160 so that the positions of the holes 160 d and 160 e and the threaded portions and the holes are aligned. The striker 121 and the striker 126 are fixed to the outer panel 7 a of the center pillar 7 by inserting bolts 161 into the holes 160 a and 160 d of the reinforcing members 160 and fastening them to the nuts 162.

  The rear door 4 that opens and closes the rear entrance / exit 3 is supported by the swing slide unit U, and is detachably locked to the center pillar 7 and the rear pillar 102 at the front and rear locking portions J1 and J2 at the door closing position D1, and the lower locking portion. At J3, the side sill 101 is removably locked.

  As shown in FIGS. 2 and 4, the swing slide unit U as a support unit that supports the rear door 4 so as to be movable in the vehicle front-rear direction X includes a mounting base 141 in the vicinity of the rear entrance 3 of the body side surface 14 as a vehicle body. The base member 15 is provided with a parallel link 16, a door sliding mechanism 17, a door load support arm 18, and an opening / closing drive mechanism 19.

  As shown in FIG. 2, the base member 15 is a U-shaped cross-section material in which a housing space e is formed by upper and lower flanges 151 and 152 and a vertical plate portion 153 that connects them, and the lower flange 152 is attached to the mounting base 141. It is fixed.

  The parallel link 16 has a function of positioning each position of the rear door 4 that swings along the movement locus. The parallel link 16 is provided on a rail receiving bracket 24 slidably fitted to a door support rail 22 (described later) fixed to the center of the inner panel 21 of the rear door 4 via a plurality of rollers 23, and on a lower flange 152. A projecting mounting bracket 25, and a front arm 31 and a rear arm 32, one end of which is pivotally supported horizontally through two vertical pins 26 at the front and rear of the mounting bracket 25, are provided. The swinging ends of the front arm 31 and the rear arm 32 are pivotally supported at two positions on the front and rear of the rail receiving bracket 24 via vertical pins 28.

  The door sliding mechanism 17 integrally couples a door support rail 22 to the inner wall of the inner panel 21 of the rear door 4, and slides on a rail receiving bracket 24 via a plurality of rollers 23 in a pair of downward rail grooves 33 of the door support rail 22. Adopted a structure that can be moved freely. The door support rail 22 has a cross-sectional shape that forms a pair of downward rail grooves 33, and is provided long in the vehicle front-rear direction X of the rear door 4. One end of the door support rail 22 is integrally coupled to the inner panel 21 via a mounting bracket 35. The mounting bracket 35 is a bent plate material shaped so as to cover the central main portion of the inner wall of the inner panel 21, and forms a door side pivot portion 37 to which a door pivot pin 36 to be described later is attached in the vicinity of the center of gravity of the door. The rail receiving bracket 24 has a vertical roller pin 38 and a horizontal roller pin 39 projecting from the upper surface thereof. The vertical roller pin 38 has a roller 23 that can rotate in the horizontal direction, and the horizontal roller pin 39 has a roller 23 that can rotate in the vertical direction. Each is pivotally supported. Each roller 23 is fitted in a pair of downward rail grooves 33 of the door support rail 22 in a state where play is restricted so as to be rotatable.

  The swinging ends of the front arm 31 and the rear arm 32 are pivotally supported by vertical pins 28 at two locations on the front and rear sides of the downward wall of the rail receiving bracket 24.

  The door load support arm 18 has a pivot 42 that protrudes upward from the lower flange 152 of the base member 15, a vertical pin 43 that is supported between the center of the pivot 42 and the upper flange 151, and a vertical pin 43. A first support arm 44 whose proximal end is pivotally supported by the first support arm 44, a second support arm 46 pivotally supported by a pivot end of the first support arm 44 via a vertical pin 45, and the other end of the second support arm 46. The rear door 4 is provided with a door side pivot portion 37 that pivotally supports the position of the center of gravity of the rear door 4 via a vertically oriented door pivot pin 36.

  Here, the base member 15 pivotally supports the door load support arm 18 via the vertical pin 43, and the door side pivotal support portion 37 of the door load support arm 18 pivotally supports the rear door 4 via the vertical pin 36. Thus, the door load support arm 18 can swing with sufficient vertical rigidity, that is, the load at the center of gravity of the rear door 4 can always be transmitted to the pivot support 42 of the base member 15 and the rear door 4 moves. It functions to support the door load at any position and to regulate the tilt of the rear door 4.

  That is, as shown in FIG. 1, the rear door 4 is supported by the swing slide unit U in the vicinity of the central portion in the vertical direction of the rear door 4. And the door support rail 22 which comprises the support part is arrange | positioned in the triangular area | region 100 formed of lock part J1, J2, J3.

  The opening / closing drive mechanism 19 is fixed to the base member 15 and the base member 15, the motor 50 disposed on the back side of the accommodation space e between the upper and lower flanges 152 of the base member 15, the winding drum 52 driven by the motor 50. As a support member having strength, a fixed pulley p1 pivotally supported by a bracket (not shown), an arm side pulley p2 pivotally supported by the front arm 31, a door side pulley p3 pivotally supported by the door support rail 22, and the like. Front and rear cable stops 47 and 48 at the front and rear ends of the door support rail 22, an open operation cable 49 connected to the front cable stops and reaching the take-up drum 52, and a close connected to the rear cable stop 48 and reaching the take-up drum 52. And an operating cable 51.

  As shown by the thick solid lines in FIGS. 3A to 3C, the open operation cable 49 coupled to the front cable stopper 47 is attached to the outer surface portion of the door-side pulley p3, the inner surface portion of the arm-side pulley p2, and a bracket (not shown). After reaching the fixed pulley p1 and the fixed pulley that are pivotally supported, it reaches the open winding portion of the winding drum 52 (the left half portion of the portion indicated by the two-dot chain line in FIGS. 2 and 3).

  As shown by the thick two-dot chain line in FIGS. 3A to 3C, the closing operation cable 51 coupled to the rear cable stopper 48 is not shown in the drawing, the inner surface portion of the door-side pulley p3, the outer surface portion of the arm-side pulley p2, and the like. It reaches the closed winding portion of the winding drum 52 (the right half portion of the portion indicated by the two-dot chain line in FIGS. 2 and 3) through the fixed pulley p1 that is pivotally supported by the bracket.

  The take-up drum 52 driven by the motor 50 of the opening / closing drive mechanism 19 is connected to a controller 23 (not shown). When the controller 23 receives the door opening command, it outputs a lock release output to the front end upper lock portion J1, the front end lower lock portion J2 and the rear end lock portion J3 of the rear door 4, and unlocks the rear door 4 to the rear entrance 3 Let

  Further, when the controller 23 receives the door opening output based on the door opening command, the controller 23 drives the winding drum 52 to wind up the opening operation cable 49 shown by a thick solid line, and can release the closing operation cable 51 shown by a thick two-dot chain line. And At this time, the door support rail 22 (located at the rail front position P1) integrated with the rear door 4 at the door closing position D1 shown in FIGS. At this time, the front and rear arms 31 and 32 swing outwardly about the vehicle outer side rotation center points b1 and b2 around the pair of front and rear vehicle inner rotation center points a1 and a2, as shown in FIG. It is held at the door swing position D2 (the door support rail 22 is at the rail middle position P2). Further, the front cable stopper is pulled rearward by the opening operation cable 49, whereby the door support rail 22 and the rear door 4 slide rearward with respect to the rail receiving bracket 24, and the rear entrance / exit 3 is opened. ) Shown in FIG. 2) (the door support rail 22 is in the rail rear position P3). During this opening operation, the winding drum 52 winds the closed operation cable 51 indicated by a thick two-dot chain line. The rear door 4 is held at the door opening position D3 shown in FIG.

  On the other hand, when a door closing output based on a door closing command is received from a controller (not shown), the motor 50 is driven to rotate the winding drum 52 to wind up the closing operation cable 51 indicated by a thick two-dot chain line, with a thick solid line. Allows the opening actuating cable 49 shown to be released. At this time, in the door support rail 22 integrated with the rear door 4 at the door open position D3 shown in FIG. 3C, the rear cable stop 48 is drawn forward by the closing operation cable 51. Then, the door support rail 22 and the rear door 4 slide forward, and reach the door swing position D2 shown in FIG. Further, the front cable stopper 47 pulls the closing operation cable 51 forward, so that the front and rear arms 31 and 32 have the outer rotation center points b1 and b2 around the pair of front and rear rotation center points a1 and a2. It swings inward of the vehicle and reaches the door closing position D1 (the door support rail 22 is at the rail front position P1) shown in FIG.

  When the controller receives a door close signal from a position sensor (not shown), it outputs a lock output to the lock portions J1, J2 and J3 of the rear door 4 and locks the rear door 4 to the rear entrance 3.

  In this way, the lock portions J1 and J2 that hold the slide-type rear door 4 in the closed position D1 that closes the rear entrance 3 are located above the door support rail 22 of the swing slide unit U, and the lock portion J3 is the door support rail. Since the door is held in the closed state by the first to third lock portions J1, J2, J3 when the rear entrance / exit 3 is closed by the rear door 4, the door is closed. The generation of rotational moment is suppressed. For this reason, the locked state of the rear door 4 can be firmly held while reducing the occurrence of vibration at the closed position, and effectively preventing the door from being accidentally opened when an impact load is applied from the side of the vehicle. Can do. Moreover, since the lock portions J1, J2, and J3 are arranged on the peripheral portion of the rear entrance 3 so that the lock portion J2 is formed in a triangular shape, the closing position of the rear door 4 can be efficiently achieved with a small number of lock portions. Since it can hold | maintain to D1, cost reduction can be aimed at. Further, since the reinforcing member 160 is mounted on the inner side of the center pillar 7 facing the strikers 121 and 126, the strength of the mounting portions of the strikers 121 and 126 is increased without increasing the thickness of the center pillar 7 as a whole. It is done. For this reason, generation | occurrence | production of the rotational moment in the closed state of the rear door 4 is suppressed, aiming at cost reduction, and the locked state of the rear door 4 can be hold | maintained firmly, reducing generation | occurrence | production of a vibration.

  In this embodiment, when a controller (not shown) receives a door opening command, it outputs an unlocking output to each of the lock portions J1, J2, J3 of the rear door 4 to release the locking of the rear door 4, and further opens the door based on the door opening command. In response to the open output, the door take-up drum 52 of the swing slide unit U is driven to move the door at the door closing position D1 shown in FIG. 3A to the door swinging position D2 shown in FIG. Furthermore, it is moved to the door opening position D3 shown in FIG. On the other hand, when a door closing output based on a door closing command is received from a controller (not shown), the winding drum 52 is driven, and the rear door 4 at the door opening position D3 moves to the door closing position D1 via the door swing position D2. .

  The directions of the strikers 121, 123, and 126 constituting one of the lock portions may be the same, but the lock portion J3 disposed below the striker 121 of the lock portion J1 shown in FIG. As shown in FIG. 7, the striker 126 may be rotated by approximately 90 degrees to have different orientations and fixed to the center pillar 7. In this case, the latch 125 is also rotated 90 degrees with respect to the latch 120.

  That is, as shown in FIGS. 5 and 6, the strikers 121 and 123 are mounted on the center pillar 7 and the rear pillar 102 so as to be substantially horizontal and wide in the vehicle width direction Y, and the latches 120 and 122 are These are mounted on each door so as to mesh with the striker from above and below. On the other hand, as shown in FIG. 7, the striker 126 of the lock portion J3 is mounted so as to be substantially perpendicular to the center pillar 7 and wide in the vertical direction Z, and the latch 125 is engaged with the rear door so as to engage from the horizontal direction. 4 is attached.

  Therefore, in the locked state of the lock portion J1, the movement of the latch 121 is restricted with respect to the vertical direction of the vehicle indicated by the arrow Z in FIG. 1, but in the vehicle longitudinal direction X shown in FIGS. That movement becomes possible. Further, in the locked state of the lock portion J3, the latch 126 can move in the vertical direction of the vehicle indicated by the arrow Z, but the movement is restricted in the vehicle width direction Y as shown in FIG. Become.

  For this reason, even if the positional relationship between the latch and the striker of each lock portion is shifted due to the opening / closing operation of the rear door 4, the shift can be absorbed, so that the door can be easily adjusted and the doors can be adjusted. The locked state can be held stronger, and inadvertent opening of the door when an impact load is applied can be prevented more reliably. In particular, since the support structure of the rear door 4 of this embodiment is a structure in which the vicinity of the center portion in the vertical direction is supported by the swing slide unit U, a rotational moment in the vertical direction is easily generated with the opening and closing operation, and the installation system Although it is difficult to remove, the direction of restraint between the upper lock portions J1 and J2 and the lower lock portion J3 is different, so that installation adjustment can be easily performed.

Since the vehicle B of this embodiment includes the center pillar 7, as shown in FIGS. 8 and 9, it is assumed that a rotation opening / closing type door 200 that is rotatably supported by hinges 180 and 181 is mounted. The In this case, in this embodiment, holes for inserting a plurality of bolts 161 and 161 for attaching the hinge 180 to the reinforcing member 160 are formed in advance, and the reinforcing member 160 is hinged to the door 200 of the opening / closing system different from the rear door (sliding door) 4. By arranging it at the site of the center pillar 7 to which 180 is mounted, the reinforcing member 160 can also be used as a mounting member for the hinges 180 and 181, and the vehicle body used for the hinged door and the sliding door can be shared, Cost reduction can be achieved.
Although the slide door has been described as the rear door 4 in FIG. 1, the slide door may be applied as a front door. In this case, substantially the same effect as the rear door 4 can be obtained.

1 is a schematic side view of a vehicle having a center pillar according to an embodiment of the present invention. It is a schematic side view of the swing slide unit used for the rear door of FIG. It is a function explanatory view of the swing slide unit used for the rear door of Drawing 1, (a) is a door closed position, (b) is a swinging position, (c) is a top view showing an open position. It is a perspective view of the swing slide unit used for the rear door of FIG. It is an enlarged plan view showing the configuration of the first lock part. It is an enlarged plan view which shows the structure of a 2nd lock | rock part. It is an enlarged plan view which shows the structure of a 3rd locking part. It is an enlarged view which shows a state when the rotation opening / closing type door by a hinge is mounted | worn with the reinforcement member used in the 1st lock part. It is an enlarged view which shows a state when the rotation opening / closing type door by a hinge is mounted | worn with the reinforcement member used in the 3rd lock part. It is an expansion perspective view which shows one form of a reinforcement member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,3 Door opening part 4 Sliding door 7 1st pillar 102 2nd pillar 120,122,125 Latch 121,123,126 Striker 160 Reinforcement member 160b 1st mounting part 160c 2nd mounting part B Vehicle 1st Lock part J1
Second lock part J2
Third lock part J3
U Support unit X Vehicle longitudinal direction

Claims (4)

In a vehicle body structure including a holding mechanism that holds a door that opens and closes a door opening formed in a vehicle,
A first pillar provided on one of the vehicle front side and the rear side of the door opening,
A reinforcing member having a first mounting portion that contacts the surface of the first pillar on the door opening side and a second mounting portion that contacts the surface on the vehicle outer side;
The vehicle body structure characterized in that the holding mechanism is mounted on either the first mounting portion or the second mounting portion of the reinforcing member. The vehicle body structure according to claim 1,
The holding mechanism includes a lock portion that locks the door and the first pillar,
A vehicle body structure wherein the lock portion is attached to a first mounting portion. The vehicle body structure according to claim 1,
The holding mechanism includes a hinge that allows the door to rotate,
A vehicle body structure characterized in that one end of the hinge is attached to the door and the other end is attached to a second mounting portion of the reinforcing member. The vehicle body structure according to claim 2,
The door is a sliding door provided with a support unit that is movably supported in the vehicle longitudinal direction,
The holding mechanism has a first lock portion and a third lock portion provided in the vertical direction of the first pillar,
A second pillar provided on the other side of the vehicle front side or the rear side of the door opening,
A second lock portion for locking the second pillar and the sliding door;
A vehicle body structure characterized in that a support portion of the support unit is arranged in a triangular region formed by each lock portion.

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