JP2010162916A - Vehicle body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body structure which enable to appropriately installing side airbags for protecting occupants, and making it easy to address the glare or sunburn issue due to the sunlight intruding through side door glasses. <P>SOLUTION: The vehicle body structure is equipped with: s doors 3 and 4 for opening a door opening 1 disposed in the vehicle body; a roof side rail 9 forming an upper end peripheral edge of the door opening and being extended in the fore-and-aft direction of the vehicle body; and an airbag 26 supported by the upper edge forming member and deployed downward of the upper edge forming member when excessive load is exerted on the external side of the vehicle body. A glass window opening wg surrounded by a door panel body 16 and a frame-like sash 17 extended above is formed in the doors. Interior opposite walls d2 in an upper frame 21 of the frame-like sash 17 are formed of: a first wall d1 overlying a side edge inserting part 132; and a second wall d2 extended further downward than the first wall and opposed to the interior. A guide surface f1 for guiding the downward deployment of the airbag is formed in the second wall d2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle body structure in which a door opening for passenger entry / exit is formed, and in particular, a vehicle body structure including a door in which an upper portion of the door opening is formed by an upper edge forming member and a glass window opening surrounded by a sash is formed. About.

The side walls of the vehicle are formed with a predetermined rigidity to protect passengers in the vehicle interior. The side wall is provided with a side window that is used for getting on and off the occupant and is opened and closed by the door and a side window that guides the outside light to the inside of the vehicle by improving the view outside the vehicle.
The door that opens and closes the door opening on the side wall of the vehicle is usually formed with a lower portion as a door panel, a frame-shaped sash is formed at the upper portion of the door panel, and a glass window opening surrounded by the sash is opened and closed by the door glass. . In addition, the window frame provided on the side wall of the vehicle is equipped with a slide glass and a fixed glass.

These glass window openings can improve the outlook of the vehicle and guide the outside light into the vehicle, and an example of this type of door is disclosed in Patent Document 1 (Japanese Patent No. 3387793).
By the way, for example, as shown in FIG. 7, the upper peripheral edge portion of the vehicle door opening is formed by, for example, a roof side rail 120 and a side edge folding portion Q <b> 1 of the roof 130 that extend forward and backward. An upper frame portion 101 of the door sash 100 is overlapped with the side edge folding portion Q1 through a sealing material 150 so as to securely close the door opening.

Further, the upper frame portion 101 of the sash has a closed cross-sectional structure, and the sash cross-sectional area is formed to be relatively small while ensuring rigidity. Thereby, the facing position p0 between the upper frame portion 101 of the sash and the glass window opening wg directly below is moved upward to increase the glass window opening wg, thereby improving the visibility and feeling of opening of the occupant.
In addition, the vehicle is equipped with a side airbag for the purpose of protecting the passenger in the vehicle, considering that the side part is deformed to the inside of the vehicle due to an overload at the time of a side collision.

  This side airbag is usually mounted on the vehicle compartment facing wall 121 of the roof side rail 120, and when the side portion of the vehicle is overloaded, the side airbag is inflated and deployed below the roof side rail 120, so that the door glass window It covers the opening wg and functions to protect the passenger at the position facing the door. An example of this type of side airbag is disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2008-290471).

Japanese Patent No. 3387793 JP 2008-290471 A

By the way, the roof side rail 120 which forms the upper end of the door opening 110 tends to be pulled upward in order to give priority to passengers' getting on and off.
However, if the upper end of the door opening 110 is moved upward, the following problem occurs. That is, as the door opening 110 is expanded upward, the glass window opening wg of the door also tends to be lifted upward. This can improve the occupant's visibility and feeling of openness, but the necessity of taking measures against glare caused by sunlight (ultraviolet rays) inserted from the door glass G and sunburn is increasing.

  Further, as shown in FIG. 7, the sash upper frame portion 101 is formed so as to bulge the vehicle interior facing bulging wall a in the vehicle interior direction in order to ensure rigidity, and when the door is closed, the sash upper frame portion 101 is formed. Is positioned in a state where it closely overlaps the vehicle exterior facing surface of the side edge folding portion Q1. Here, the vehicle width on the roof 130 side is specified, the cross-sectional shape of the sash upper frame portion 101 is formed to be relatively large, and the roof side rail 120 forming the upper edge forming member positioned inside the vehicle is used for ensuring rigidity. If it is formed to be relatively large, there arises a problem that the width in the vehicle width direction Y in the vehicle interior is reduced, and in this respect as well, improvement of the side body structure is desired.

  The present invention has been made on the basis of the above-described problems. The object of the present invention is to be able to accurately equip a side airbag that protects an occupant in the event of a side collision of a vehicle and to be dazzled by sunlight (ultraviolet rays) inserted from the side door glass. It is another object of the present invention to provide a vehicle body structure that is easy to take measures against sunburn.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a door that opens and closes a door opening provided in a vehicle body, and an upper edge that forms an upper peripheral edge of the door opening and extends in the longitudinal direction of the vehicle body. A member, and an airbag that is supported by the upper edge forming member and that is deployed toward the lower side of the upper edge forming member when an overload is applied to the outer side of the vehicle body. And a glass window opening surrounded by a frame-like sash extending above the same, and the same as the first wall part where the vehicle compartment facing wall in the upper frame part of the sash overlaps the upper edge peripheral part of the door opening. A second wall portion extending further downward from the first wall portion and facing the vehicle compartment side, and a guide surface for guiding the downward deployment of the airbag is formed on the second wall portion; It is characterized by that.

  According to a second aspect of the present invention, there is provided the vehicle body structure according to the first aspect, further comprising a roof garnish mounted so as to cover an inner wall of a vehicle roof, and the airbag between the roof garnish and the upper edge forming member. A storage bulge portion is formed to store the container.

  According to a third aspect of the present invention, in the vehicle body structure according to the first or second aspect, the airbag is provided on a side of the vehicle body, and the curtain airbag continuously covers the window glass arranged side by side before and after the glass window opening. It is characterized by being.

  According to the first aspect of the present invention, the vehicle compartment facing wall in the upper frame portion of the frame-shaped sash extends further downward from the first wall portion and the first wall portion overlapping the upper peripheral edge of the door opening. Since the second wall portion is formed with a guide surface that guides the airbag to be deployed downward, the airbag can be smoothly deployed downward, and the airbag Delay in deployment operation can be prevented. Moreover, even if the window glass is in an open state, the airbag deployed by the guide surface can be prevented from moving to the outside of the vehicle, and the occupant protection performance can be improved more reliably.

  According to the second aspect of the present invention, the airbag supported by the upper edge forming member can be easily accommodated in the storage bulge portion of the roof garnish. In addition, it is possible to further suppress the airbag that has been deployed by being inflated from moving to the outside of the vehicle, and to further improve the occupant protection performance.

  Since the invention according to claim 3 is a curtain airbag, a gas is supplied from a single inflator to face the glass window opening and the window glass arranged side by side on at least one side of the glass window opening. The chamber can be continuously deployed to ensure the safety of the occupants in the front and rear seats, and can be easily mounted.

1 is a schematic perspective view of a vehicle provided with a vehicle body structure as one embodiment of the present invention. It is a schematic front view in the vehicle interior view of the airbag with which the vehicle provided with the vehicle body structure of FIG. 1 is equipped. FIG. 3 is an enlarged front view of the airbag of FIG. 2. It is an enlarged front view of the airbag which can be used instead of the airbag of FIG. It is the sectional view on the AA line of FIG. FIG. 2 is a schematic perspective view of the vehicle shown in FIG. It is sectional drawing of the roof side rail which is the principal part of the conventional side part vehicle body structure.

FIG. 1 shows a vehicle C that employs a vehicle body structure as one embodiment of the present invention, and FIG. 2 shows a schematic perspective view of the inside of the vehicle C.
In the vehicle C, front and rear door openings 1 and 2 are formed on left and right side walls, respectively, and front and rear doors 3 and 4 for opening and closing the front and rear door openings 1 and 2 are provided. The front and rear doors 3, 4 are hinged (not shown) at the top and bottom of their respective front ends, and the rotation end side is removably locked by a locking portion (not shown) at the middle of the center pillar 5 and the rear pillar 8. The handle 6 is opened and closed. Here, the rear door 4 is formed to have substantially the same configuration as the front door 3.

As shown in FIG. 2, a roof side rail 9 having a closed cross-sectional shape in the front-rear direction X is extended on the upper portion of the side wall of the vehicle C. As shown in FIG. 3, the vehicle exterior side of the roof side rail 9 is covered with a side end portion 131 of the roof 13 and a side edge folding portion 132 that is bent downward from the side end portion 131. Here, the roof side rail 9 has a closed cross-sectional structure, and the roof side outer rail 11 and the roof side inner rail 12 are welded to each other, thereby forming a long rail inner space B1 in the front and rear, thereby enhancing rigidity. . Further, as shown in FIG. 3, flanges 111 and 121 at the respective edges of the roof side outer rail 11 and the roof side inner rail 12, and a flange 133 at the edge of the side edge folding portion (upper peripheral edge) 132 are provided. By being overlapped and welded to each other, an upper edge forming member of the front door opening 1 can be formed, and this functions as a rigidity reinforcing member on the upper side portion of the side wall of the vehicle C.
A portion where the flanges 111, 121, and 133 (hereinafter simply referred to as t <b> 1) on the edge of the side edge folding portion 132 of the roof side rail 9 and the roof 13 are welded to each other is the opening of the front door opening 1. The upper edge position e1 is formed.

  As shown in FIG. 2, the roof side rail 9 extends rearward (rightward in FIG. 2) from the upper end of the front pillar 7, and is a side edge folding portion at the roof side end at a position facing the front door opening 1. 132 at the position facing the center pillar 5 at the upper end joint portion (not shown) of the center pillar 5, at the position facing the rear door opening 2, a side edge folding portion (not shown) at the roof side end, and the rear pillar. 8 is welded to an upper end joint portion (not shown) of the rear pillar 5. In this way, the roof side rail 9 is joined to the members facing each other along the front-rear direction X so that the upper edge forming member is extended in the front-rear direction X. The rigidity of the upper part is enhanced.

In particular, at the position facing the front door opening 1 (the position facing the rear door opening 2 adopts the same configuration), the roof side rail 9 and the side edge folding portion 132 at the side end of the roof 13 are welded to each other. As a result, an upper edge forming member is formed. A sash upper frame portion 21 which will be described later overlaps with the side edge folding portion 132 which forms a part of the upper edge forming member via draining channels (seal members) ch1 and ch2, thereby ensuring a sealing property at the upper part of the door opening. is doing.
The vehicle inner surfaces of the roof side rail 9 and the roof 13 are covered with a roof garnish 39. The roof garnish 39 is locked at a plurality of positions on the inner surfaces of the roof side rail 9 and the roof 13 so as not to be detached by locking means (not shown).
As shown in FIG. 3, the facing portion of the roof garnish 39 facing the roof side rail 9 is curved downward, and the lower end edge 391 is attached and supported by the decorative molding 27 on the flange t1 on the roof side rail 9 side.

Next, the front door 3 for opening and closing the front door opening 1 is formed by overlapping the outer peripheral edges of the door inner panel 14 (see FIG. 2) and the door outer panel 15 (see FIG. 1) over the entire circumference and performing hemming (not shown). It is formed as an integrated panel door.
The lower panel portion 16 (see FIG. 1) accommodates a lower sash (not shown), a door glass, a glass lifting mechanism, a door lock mechanism, and the like. The upper frame-shaped sash 17 includes front and rear vertical sashes 18 and 19 (see FIGS. 1 and 2) that connect upper ends of lower sashes (not shown) and upper and lower sash upper frames that connect the upper ends of the front and rear vertical sashes 18 and 19 to each other. It is formed with the part 21.

  As shown in FIG. 3, the sash upper frame portion 21 is formed by hemming the periphery of the upper frame portion of the sash upper frame inner 22 that forms part of the door inner panel 14 and the sash upper frame outer 23 that forms part of the door outer panel 15. Thus, an integrated upper sash flange t2 is formed. In addition, the lower end portions of the sash upper frame inner 22 and the sash upper frame outer 23 facing the respective glass window openings wg are fitted with a sash upper frame main body 24 having a U-shaped cross section therebetween, and are welded to each other. Yes.

  The sash upper frame inner 22 has a first vehicle compartment facing wall (first wall) in which a portion facing the side edge folding portion 132 (upper peripheral portion) of the door opening 1 is fitted via a plurality of draining channels ch1 and ch2. 1 wall portion) d1. Further, a portion extending stepwise downward from the first vehicle compartment facing wall d1 is formed as a second vehicle compartment facing wall (second wall portion) d2 that directly faces the vehicle compartment and bulges inside the vehicle. The Here, as shown in FIG. 3, the second vehicle compartment facing wall d2 is opposed to the upper opening portion by a predetermined amount L1 below the portion p1 facing the opening upper edge position e1 of the upper peripheral edge including the roof side rail 9. An extension is formed so as to bulge inward of the vehicle up to a position p2 facing the end b1.

The sash upper frame outer 23 extends downward from the upper sash flange t2 in a shape that bulges out to the vehicle exterior, is overlaid on the upper sash body 24, and is welded together.
The first casing facing wall d1 has a relatively small bulging amount m1 in the vehicle width direction Y, and the second casing facing wall d2 has a relatively large bulging amount m2 in the vehicle width direction Y. The first casing facing wall d1 having a relatively small bulging amount m1 is opposed to the opening upper edge position e1 of the roof side rail 9 via the draining channel ch2 of the side edge folding portion 132 (upper peripheral edge), The second vehicle compartment facing wall d2 having a large bulge amount m2 is offset so as to be located on the lower side thereof, that is, vertically.

  For this reason, the amount by which the opening upper edge position e1 of the roof side rail 9 protrudes toward the inside of the vehicle can be kept relatively small, and the lateral width in the vehicle width direction Y at this portion can be prevented from narrowing.

  By the way, the opening upper edge position e1 of the upper edge forming member of the door opening 1 of the vehicle C tends to be pulled upward and the roof side rail of the same part is also moved upward in order to give priority to passengers' getting on and off. is there. In response to this, the glass window opening of the front door tends to be widened upward, but such a configuration is not adopted here.

  That is, in the vehicle C of FIG. 1, the second vehicle compartment facing wall d2 of the sash upper frame inner 22 is lower than the portion p1 facing the opening upper edge position e1 of the roof side rail (upper edge forming member) 9 by a predetermined amount L1. It is formed to extend in a substantially vertical direction to a position p2 facing the side glass window opening wg. For this reason, the opening upper part opposing edge b1 (refer FIG. 3) of the sash upper frame inner 22 has reached the comparatively low position. For this reason, even if the opening upper edge position e1 of the roof side rail 9 is formed close to the relatively high position, the facing position p2 with the opening upper facing end b1 is held at a relatively low position. A passenger can be prevented from being dazzled by sunlight (ultraviolet rays) inserted from the glass window opening wg (side door glass) or sunburn (see FIG. 6).

Furthermore, the second vehicle compartment facing wall d2 of the sash upper frame inner 22 smoothly deploys the airbag 26 described later, that is, a guide surface f1 that guides the deployment of the airbag 26 below. Is formed. The guide surface f1 is formed at an inclination angle α1 that restricts a deviation in the deployment direction of the airbag 26 when deployed downward to prevent deployment delay.
On the other hand, the inner surfaces of the roof side rail 9 and the roof 13 are covered with a roof garnish 39. The roof garnish 39 is locked at a plurality of positions on the inner surfaces of the roof side rail 9 and the roof 13 so as not to be detached by locking means (not shown).

As shown in FIG. 5, the facing portion of the roof garnish 39 facing the roof side rail 9 is formed in a bulging shape toward the vehicle interior as a storage bulging portion 392, and the lower end edge 391 is a flange t <b> 1 on the roof side rail 9 side. It is attached and supported by a decorative molding 27.
A storage space 28 is formed between the roof side inner rail 12 and the storage bulging portion 392, and an obliquely vertical rail inner wall surface f2 faces here, and an airbag 26 is attached thereto. The storage bulge portion of the roof garnish 39 can easily store the airbag 26 supported by the upper edge forming member.

Here, as shown in FIG. 2, the airbag 26 is a curtain airbag that continuously covers the glass window openings wg of the two front and rear doors 3 and 4 that open and close the front and rear door openings 1 and 2 provided in the vehicle body. It is formed as. That is, the airbag 26 is continuously mounted along the rail inner wall surface f2 that is obliquely vertical from the front pillar 7 to the rear pillar 8 through the front door opening 1, the center pillar 5, and the rear door opening 2. .
The airbag 26 can supply gas from an inflator 29 supported by the rear pillar 8 to continuously deploy the chambers 31a to 31d at positions facing the front and rear glass window openings wg. It can function to ensure the safety of each passenger in multiple seats.

  The airbag 26 shown in FIG. 2 is formed so as to continuously cover the two glass window openings wg of the front and rear doors 3 and 4. On the other hand, when a sash window with a window glass is formed in the vicinity of the front and rear doors on the side wall of the vehicle (not shown), at least one of the front and rear of the two glass window openings of the front and rear doors. You may form a curtain airbag comparatively long back and forth so that the sash window provided with the window glass of the vehicle body side wall arranged side by side may be covered continuously. Even in such a case, the gas is supplied from a single inflator to face the glass window opening on the door side and the window glass of the sash window on the side wall of the vehicle body arranged side by side at least before and after the glass window opening. The chambers to be deployed can be continuously deployed to ensure the safety of the occupants in the front and rear seats, and the mounting can be facilitated.

Next, the configuration of the airbag 26 will be described with reference to FIG.
FIG. 3 is a schematic front perspective view of the airbag 26. The airbag main body 261 of the airbag 26 here includes a locking portion 36, a conduit 33, an inflow port 34, chambers 31 a, 31 b, 31 c, 31 d and a partition portion 35. The airbag main body 261 is a bag-like object in which sheet materials having a symmetrical shape are overlapped and integrated.

  A plurality of locking portions 36... Protrude from the upper end portion in the longitudinal direction X of the airbag body 261 having a rectangular shape at a predetermined distance. Each locking portion 36 has an opening hole n having an area smaller than the locking portion 36 at a substantially central portion, and the inner wall surface of the roof side inner rail 12 of the vehicle C which is inclined as shown in FIG. The air bag 26 can be attached to the roof side rail 9 by being fastened to the f2 by bolt fastening. Thus, the mounting of the airbag 26 (curtain airbag) on the vehicle C is facilitated.

As shown in FIG. 3, the airbag main body 261 is provided with an inflator 29 that is driven by receiving a deployment output from the airbag driving circuit 37. A plurality of chambers 31 a, 31 b, 31 c, 31 d (hereinafter referred to as reference numeral 31) that expand and expand when receiving gas supply from the inflator 29 are connected in the longitudinal direction (front-rear direction X). Yes.
On the upper side of the chamber 31, a conduit 33 extending in the connecting direction (longitudinal direction X) of the chambers 31 is provided. An inlet 34,... Is formed at a connection portion between each chamber 31 and the conduit 33, and gas supplied from the inflator 29 through the conduit 33 is supplied to each chamber 31 through each inlet 34. To send.

Portions other than the locking portion 36, the conduit 33, the inflow port 34, and the chamber 31 described above are covered with a partition portion 35 into which gas from the inflator 29 does not flow. The partition portion 35 is provided so as to cover the outer periphery of the airbag 26 and is also provided between the chambers 31. In addition to applying an adhesive so that gas does not flow in, the partition portion 35 is sewn or the like.
When the air bag body 261 is mounted on the vehicle, as shown in FIG. 5, the lower end of the air bag body 261 is attached by being rolled a plurality of times toward the upper end of the conduit 33, but instead, as shown in FIG. 4. The airbag main body 261a may be used. The airbag main body 261a is configured such that a folded portion at one end having substantially the same length is attached by being alternately stacked in a bellows shape a plurality of times. Such an airbag body 261a can exhibit substantially the same function as the airbag body 261 of FIG.

The case where the vehicle C equipped with such a side body structure normally travels will be described.
As shown in FIG. 5, the front door 3 (the rear door 4 has the same configuration) is a portion p1 where the second casing facing wall d2 of the inner upper sash, which is a part of the upper sash 21, faces the lower edge position e1. Further, it is formed to extend vertically by a predetermined amount L1 to a position p2 facing the lower glass window opening upper end b1. Since the upper sash 21 is formed so as to extend to a relatively low position in this way, as shown in FIG. 6, the occupant is not dazzled by sunlight (ultraviolet rays) SR inserted through the glass window opening wg (side door glass). Sunburn can be easily prevented (see).
Furthermore, it is assumed that an obstacle collides with the outer wall of the vehicle C to which such a side body structure is applied.

In this case, an overload is applied to the side portion of the vehicle C, an unillustrated acceleration sensor disposed at an appropriate position on the side wall of the vehicle body is turned on, the airbag drive circuit 37 is turned on, and the deployment drive output is sent to the inflator 29. Suppose that it is input.
Then, the inflator 29 is driven, the generated gas flows into the conduit 33, the inlet 34, and the chamber 31, and each chamber 31 expands. At this time, the airbag 26 starts inflating and deploying in the accommodating space 28, the accommodating bulging portion 392 of the roof garnish 39 and the edge portion in the vicinity thereof are separated from the upper edge forming member side and deformed downward, and the roof The lower end edge 391 of the garnish 39 is removed from the decorative molding 27 on the flange t1 on the roof side rail 9 side to open a gap, and further, the gap 38 (see FIG. 5) is enlarged so as to facilitate the expansion and displacement of the airbag 26. Let Thereby, the chamber 31 can be easily inflated and deployed downward from the enlarged gap 38.

At this time, if the downward deployment of the airbag 26 in the accommodation space 28 is not performed smoothly and the downward deployment is delayed, the body of the occupant moving toward the glass window opening wg due to inertia at the time of collision. May be delayed.
Therefore, here, the guide surface f1 (see FIG. 5) is formed on the second vehicle compartment facing wall d2 that forms the bulging wall of the inner upper sash 21 of the upper sash 21 that is located a predetermined amount below the lower edge position of the upper edge forming member. Reference) is formed.
A guide surface f1 for guiding the downward deployment of the airbag 26 is formed on the second vehicle compartment facing wall d2. The guide surface f1 is formed at an inclination angle α1 that restricts a deviation in the deployment direction of the airbag 26 when deployed downward to prevent deployment delay.

As a result, the guide surface f1 of the second vehicle compartment facing wall d2 regulates the displacement s1 that causes the airbag 26 that is inflated and deployed downward to shift the deployment direction, and the airbag 26 is smoothly deployed without delaying downward. That is, the development characteristics can be improved. For this reason, the airbag 26 guided by the guide surface f1 of the second vehicle compartment facing wall d2 reliably facilitates the rapid and reliable wrapping of the occupant's body that moves toward the glass window opening wg due to inertia at the time of collision. it can.
Moreover, since the airbag 26 here is the curtain airbag 26, a gas is supplied from a single inflator 29, and the chamber 31 facing the glass window openings wg arranged in a plurality of front and rear is continuously deployed. The safety of each occupant with multiple front and rear seats can be reliably maintained.

  In the above description, the airbag 26 is a curtain airbag. However, in response to the shape of the side wall portion of each vehicle, each seat seated in each seat receives gas from a single inflator and is inflated. A single chamber to be deployed may be arranged to face each other. In this case, it is possible to cope with a change in the shape of the side wall portion of the vehicle, and substantially the same function and effect as when the airbag 26 of FIG. 1 is used. can get.

1, 2 Door opening 3, 4 Door 9 Roof side rail (upper edge forming member)
13 Roof 131 Side end 132 Side edge fold-in part (upper peripheral edge) of door opening
17 Frame-shaped sash 21 Sash upper frame part 22 Sash upper frame inner 23 Sash upper frame outer 26 Air bag 31 Chamber 38 Crevice 39 Roof garnish 391 Lower end edge 392 Storage bulging part ch1, ch2 Draining channel d1 First vehicle compartment facing wall ( 1st wall)
d2 Second vehicle compartment facing wall (second wall)
e1 Lower edge position f1 Guide surface wg Glass window opening X Longitudinal direction Y Vehicle width direction

Claims (3)

A door that opens and closes a door opening provided in the vehicle body;
An upper edge forming member that forms an upper edge of the door opening and extends in the vehicle longitudinal direction;
An airbag that is supported by the upper edge forming member and that is deployed toward the lower side of the upper edge forming member when an overload is applied to the vehicle body outer side; and
Comprising
The door is formed with a glass window opening surrounded by a door panel body and a frame-like sash extending above the door panel body,
A first wall portion in which the vehicle compartment facing wall in the upper frame portion of the sash overlaps the upper peripheral edge of the door opening and a second wall portion that extends further downward than the first wall portion and faces the vehicle compartment side. Formed,
A vehicle body structure characterized in that a guide surface for guiding the downward deployment of the airbag is formed on the second wall portion. The vehicle body structure according to claim 1,
A roof garnish that is mounted so as to cover an inner wall of a vehicle roof is provided, and a storage bulge portion that accommodates the airbag is formed between the roof garnish and the upper edge forming member. Body structure. The vehicle body structure according to claim 1 or 2,
The vehicle body structure according to claim 1, wherein the airbag is a curtain airbag that is provided on a side portion of the vehicle body and continuously covers the window glass arranged side by side before and after the glass window opening.

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