STRUCTURE OF THE BODY OF A VEHICLE WITH A PROTECTIVE AIR BAG FOR THE HEAD
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the body structure of a vehicle with a protective air bag for the head where an air pocket is provided on one side of the rear surface of the skin of the vehicle. roof of a car, where the roof liner is adapted to be disassembled from an upright fixture by virtue of an expansion pressure resulting from the expansion of the airbag, and where the airbag may expand within the passenger compartment to through an opening that originates between the stud fixture and the roof lining. 2. Description of Related Art There are some automotive vehicles that have a vehicle body structure where an air bag is provided above the rear side window glass to protect the head of a passenger in the rear seat when it expands. An example of the structure of the body of the vehicle with the air bag (subsequently, referred to as a "protective air bag for the head") will be described based on the illustrations.
Figures 8A, 8B are side views of the body structure of a conventional vehicle with a protective air bag for the head. As shown in Figure 8A, in the body structure of a vehicle with a protective head air bag 100, a portion of the frame 102 of an accessory of the rear pillar 101 is provided in such a way that it extends to the While a top portion of a glass frame member of the rear side window is long, a rear projected portion 103 of the rear post attachment 101 projects upwardly from a rear end of the frame member 102 until the rear projected portion 103 reaches the rear window portion 103. rear window glass 104, a side portion 106 and a rear portion 107 of a roof covering 105 overlap a rear surface of the frame portion 102 and a rear surface of the rear projection portion 103 of the rear post attachment 101 , respectively, and a protective head air bag 110 is provided within a space between the roof liner 1 05 and the body panel of the vehicle. Note that the reference number 108 denotes a glass of the rear side window. An inflator 111 for the protective head air bag 110 is positioned on one side of the rear surface of the rear projected portion 103 of the accessory of the rear pillar 101 and is then attached to the body panel of a vehicle with metal screws 112 ... (... denotes a plural number), and an air bag 113 is provided such that it extends from a distal end of the inflator 111 to the front along a rear surface of the roof covering 105 and then attached to the vehicle body panel with metal screws 114 ... In Figure 8B, gas is supplied into the air bag 113 when the inflator 111 for the head air bag 110 is active for the purpose of expanding the air bag 113. A side portion 106 of the roof liner 105 is disassembled from the frame portion 102 of the upright accessory 101 by virtue of the expansion pressure of the air bag. air 113, and the air bag 113 is allowed to expand within the passenger compartment through a resulting opening between the frame portion 102 of the upright attachment 101 and the side portion 106 of the roof covering 105, thereby the head of a passenger in the rear seat is protected by the air bag 113 expanded in this manner. On the other hand, there are other vehicles that possess a technique where a hanger is provided such as the one presented in Japanese Patent Number JP-A-1-157033U entitled "Structure of the Hanger for Car Sacks", so that things like clothes can be hung on a hook provided on the hanger. A common example of this automobile bag hanger will be described with reference to the following illustration. Figure 9 is a sectional view showing part of a vehicle provided with a conventional common bag hanger of the automobile. A hanger 116 is constructed in such a way that a box 117 is fixed with a metal screw 118 to an upper portion 115a of a glass frame member of the rear side window 115, a hook 119 is attached to the box 117 by means of of a pin 119a in such a way as to rotate freely, and the portion of the frame 102 of the upright accessory 101 is engaged in the locking pawls 117a, 117a formed in the box 117, whereby the portion of the frame 102 of the upright accessory 101 is attached to the upper portion 115a of the glass frame member of the rear side window 115. According to the hanger 116, things such as clothing can be hung on the hook 119 by pulling the hook 119 toward the passenger compartment as shown. with the imaginary lines. It is contemplated that the head protective air bag 110 shown in Figures 8A, 8B is provided in a vehicle having the hanger 116. In this case, the head protective air bag 110 is considered to be positioned as shown in FIG. shows in the imaginary lines (see Figure 9) as an example. However, since the portion of the frame 102 of the upright attachment 101 is only engaged in the holding pawls 117a, 117a, it is considered difficult to guarantee the support of the upright accessory 101 with the holding pawls 117a, 117a of the box. 17 when the expansion pressure of the air bag 113 is applied to the accessory of the upright 101. Therefore, in order to provide both the hanger 116 and the protective air bag for the head 110 in the vehicle, it has been desired that the structure of the body of a vehicle has a practical use where the attachment of the upright 101 is supported in the upper portion 115a of the glass frame member of the rear side window 115 in a secured manner, such that the bag of air can expand stably. SUMMARY OF THE INVENTION Therefore, an object of the invention is to provide a body structure of a vehicle with a protective head air bag where an upright attachment can be maintained in a secured manner when the expansion pressure of the vehicle is applied. an air bag to the upright accessory. In order to achieve the objective, according to a first aspect of the invention, a structure of the body of a vehicle is provided with a protective air bag for the head, which has: an accessory of the upright placed in such a way that extends along an upper portion of a glass frame member of the rear window; a roof liner having a side portion positioned so as to be superimposed on a rear surface of the upright fixture, the protective head air bag positioned on one side of the rear surface of the roof lining; a sheath for a hanger integrally formed with the upright accessory and attached to said upper portion of the glass window member of the side window; and a hook for the hanger attached to the cover. The stud fixture can be rigidly attached to the upper portion of the glass frame member of the rear window integrally forming the hanger cover with the stud fixture and attaching the cover to the upper portion of the frame member of glass from the rear window. According to the construction, as the stud fixture can be safely held in the upper portion of the glass frame member of the rear window when the expansion pressure of the airbag is applied to the stud fixture, the airbag it can expand steadily. BRIEF DESCRIPTION OF THE ILLUSTRATIONS Figure 1 is a side view of a vehicle provided with a vehicle body structure with a protective head air bag according to the invention as viewed from the side of a passenger compartment vehicle; Figure 2 is an enlarged view of a portion denoted by the reference number 2 in Figure 1; Figure 3 is a sectional view taken along line 3-3 in Figure 2; Figure 4 is a sectional view taken along line 4-4 in Figure 1; Figure 5 is a view as seen in a direction indicated by an arrow 5 in Figure 4; Figure 6A is a first explanatory view explaining the function of the body structure of the vehicle with a protective air bag for the head according to the invention; Figure 6B is another first explanatory view explaining the function of the body structure of the vehicle with a protective air bag for the head according to the invention; Figure 7 is a second explanatory view explaining the function of the body structure of the vehicle with a protective air bag for the head according to the invention; Figure 8A is a side view of a body structure of a conventional vehicle with a protective air bag for the head; Figure T? is another side view of the body structure of a conventional vehicle with a protective air bag for the head; and Figure 9 is a side view showing a state in which a protective air bag for the head of the body structure of the conventional vehicle is expanded with a protective air bag for the head. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Now, an embodiment of the invention will be described based on the accompanying illustrations. Note that the illustrations should be displayed in the direction in which the reference numbers are oriented. Figure 1 is a side view of a vehicle provided with a vehicle body structure with a protective head air bag according to the invention, as viewed from the side of a passenger compartment of the vehicle. A vehicle 10 includes an attachment of the front pillar 11 attached to a passenger compartment side of a front pillar such as an interior member, an attachment of the central pillar 12 attached to the passenger compartment side of a central pillar as an interior member, and a body structure of the vehicle 20 with a protective air bag for the head on one side of the passenger compartment of a rear pillar. Note that the reference number 14 denotes a windshield; 15: the glass of a front side window; 16: the glass of a rear side window; 17: the glass of a rear window; 18: the front seat belt; and 19: the rear seat belt. In this structure of the vehicle body 20 with a protective head air bag, a portion of the frame 26 of an accessory of the rear pillar 25 is provided in such a way that it extends along an upper portion 23 of a frame member. glass of the rear side window 22 constituting a body panel of the vehicle 21 shown in Figure 3, and a rear projected portion 27 of the rear pillar attachment 25 projecting upwardly from a rear end of the frame portion 26 to that reaches the glass of the rear window 17.
Next, a side portion 31 and a rear portion 32 of a roof covering 30 overlap a back surface of the frame portion 26 and a rear surface of the rear projected portion 27, respectively, and a support bracket 35 is attached. to the rear surface of the roof liner 30. The lining of the roof 30 is subsequently attached to the vehicle body panel 21 through the support bracket 35, and a protective air bag for the head 40 is placed on the side of the rear surface of the roof covering 30. Further, a cover 51 for a hanger 50 is formed integrally with the portion of the frame 26 of the accessory of the rear post 25, and a hook 52 for the hanger 50 is provided in the cover 51. The protective air bag for the head 40 is constructed in the following manner. Primarily, an inflator 41 is placed on the rear surface side of the rear projected portion 27 of the rear dismountable attachment 25, and the inflator 41 is attached to the vehicle body panel 21 with metal screws 41a ... Subsequently, an air bag 42 is attached to a distal end of the inflator 41 and allowed to extend toward the front of the vehicle body panel 21 along the portion of the frame 26 of the accessory of the rear pillar 25. The bag of air 42 is then attached to a support bracket 43 (shown in Figure 4), and this support bracket 43 is attached to the vehicle body panel 21 with metal screws 44 ... Figure 2 is an enlarged view of a portion of the body structure of the vehicle 20 with a protective air bag for the head which is denoted by the reference number 2 in Figure 1. The proximity of the rear portion 32 of the roof covering 30 is joins the body panel of the vehicle by attaching the support bracket 35 to a rear surface of the edges of the rear portion 32 of the roof covering 30 with a molten metal adhesive 36 in a variety of positions and then attaching the bracket support 35 to the vehicle body panel 21 (see Figure 3) with a staple 37. The rear projected portion 27 of the rear post attachment 25 is attached to the vehicle body panel 21 providing a staple reinforcement 28 in the rear surface of the rear projected portion 27 and then joining the staple reinforcement 28 to the vehicle body panel 21. The side portion 31 of the roof covering 30 is superimposed on the rear surface side of the frame portion 26 of the attachment of the rear pillar 25 and the rear portion 32 of the roof covering 30 is also superimposed on the side of the rear surface of the projected portion after was 27 of the rear post attachment 25 since the edges of the rear portion 32 of the roof covering 30 and the rear projected portion 27 of the rear post attachment 25 are attached to the vehicle body panel 21, respectively, as shown in FIG. described above. Figure 3 is a sectional view taken along the line 3-3 shown in Figure 2. The support bracket 35 is attached to the rear surface 30a of the edge of the rear portion 32 of the roof covering 30 with the molten metal adhesive 36 in the variety of positions. A pedestal piece 35a is formed at the edge of a front end of the support bracket 35 and a fastening piece 35b is formed at an upper end of the pedestal part 35a. A base portion 37a of the staple 37 is f in a clamping slot 35c of the clamping piece 35b, and a diametrically elongated portion 37b at the distal end of the staple 37 projects from a joining hole 21a in the panel of the clamp 37a. vehicle body 21 to thereby secure the staple 37 in the vehicle body panel 21. The edge of the rear portion 32 of the roof liner 30 can be attached to the vehicle body panel 21 through the vehicle body bracket. support 35 securing the clip 37 to the vehicle body panel 21 such that the support bracket 35 is attached to the vehicle body panel 21 as described above. The support bracket 35 is constructed in the following manner. Mainly, an inclined portion 35d is formed in the center of the support bracket 35, and a extending portion 38 is provided in such a way that it extends from the inclined portion 35d towards the rear of the vehicle body along the length of the vehicle body. vehicle body panel 21. A support 38a extends from a front end of the extending portion 38 positioned to the rear of the vehicle body to the body panel of the vehicle 21 such that a distal end of the support 38a is connected to the vehicle body panel 21, and a positioning opening 38b is formed substantially in the center of the extending portion 38 such that the reinforcement of the clip 28 can be adapted thereto. The extending portion 38 can be supported by the support 38a allowing the distal end of the support 38a to be connected to the body panel of the vehicle 21. The staple reinforcement 28 is a hollow projected body that is formed integrally with the portion projected rear 27 of the rear post attachment 25 such that it projects from the rear projected portion 27 towards the body panel of the vehicle 21. In addition, the stepped portions 29, 29 are formed at the proximal end of the staple reinforcement 28 and the fastening holes 29a, 29a are formed in the stepped portions 29, 29, respectively. In addition, a projecting part 28b is formed in an internal circumference of a distal end 28a of the staple reinforcement 28 such that it extends radially inwardly. An opening 27a is formed in the rear projected portion 27 of the rear post attachment 25 by forming the staple reinforcement 28 integrally with the rear projected portion of the rear post attachment 25. A cape washer 61 is inserted into the distal end 28a of the reinforcement of staple 28 such that the projecting part 28b fits into an annular groove 61a of the cape washer 61, whereby a diametrically expanded portion 61b at the distal end of the cape washer 61 projects from the distal end 28a of the staple reinforcement 28. In this state, the staple reinforcement 28 is inserted into the opening 27a of the rear projected portion 27 and the diametrically expanded portion 61b at the distal end of the cape washer 61 projects from the aperture of the stapler. junction 21b in the body panel of the vehicle 21. In this state, when the opening 27a of the rear projected portion 27 is closed with a cover 62, an extr distal emo 63a of a staple 63 projecting from the center of the cover 62 projects from a through hole 61c in the cape washer 61. In this way, the cape washer 61 can be secured in the bodywork panel of the vehicle 21, whereby the staple reinforcement 28 can be attached to the vehicle body panel 21. Accordingly, the rear projected portion 27 of the rear post attachment 25 can be attached to the vehicle body panel 21 through the staple reinforcement 28. Further, when the opening 27a in the rear projected portion 27 is closed with the layer 62, the hooks 64, 64 project from both ends of the cover 62 and are allowed to project from the fixing holes 29a , 29a, formed in the stepped portions 29, 29 of the staple reinforcement 28. In this manner, the hooks 64, 64 are secured in the stepped portions 29, 29, respectively, whereby the cover 62 can be secured in the aber 27a of the rear projected portion 27, thus avoiding removal of the distal end 63a of the staple 63 from the through hole 61c in the cape washer 61. In this way, the roof liner 30 is attached to the body panel of the vehicle 21 through the support bracket 35, and when the rear projected portion 27 of the rear pillar attachment 25 is attached to the vehicle body panel 21 through the staple reinforcement 28, the rear portion 32 of the roof covering 30 is superimposed on the rear surface 27b of the rear projected portion 27. Next, a method for attaching the roof covering 30 and the accessory of the rear post 25 to the body panel will be described. of the vehicle 21. First, the support bracket 35 is attached to the rear surface 30a of the edge of the rear portion 32 of the roof covering 30 with the molten metal adhesive 36, and the base portion 37a of the staple 37. is attached to the holding part 35b of the support bracket 35, while the diametrically expanded portion 37b at the distal end of the clip 37 is inserted into the attachment hole 21a of the vehicle body panel 21 in such a way that the diametrically expanded portion 37b projects from the connecting hole 21a. In this manner, the edge of the rear portion 32 of the roof covering 30 is attached to the vehicle body panel 21 through the support bracket 35. Next, the lock washer 61 is inserted into the distal end 28a of the staple reinforcement 28 and the annular groove 61a of the cape washer 61 is accommodated in the projecting part 28b. In this state, the staple reinforcement 28 is inserted into the positioning aperture 38b in the support bracket 35 (the extended portion 38). In this manner, the staple reinforcement 28 can be positioned in the proper position using the positioning aperture 38b, and the diametrically expanded portion 61b at the distal end of the capping washer 61 can be simply inserted into the attachment hole 21b in the panel of the vehicle body 21. After the diametrically expanded portion
61b at the distal end of the cape washer 61 inserted into the connecting hole 21b in the body panel of the vehicle 21 projects from the connecting hole 21b, the opening 27a of the rear projected portion 27 is closed with the lid 62, whereby the distal end 63a of the staple 63 projects from the through hole 61c of the cape washer 61 and the hooks 64, 64 are secured in the fastening holes 29a, 29a in the stepped portions 29, 29. In this way, the rear projected portion 27 of the rear post attachment can be attached to the vehicle body panel 21 through the staple reinforcement 28.
As described above, the staple reinforcement 28 can be positioned in the proper position using the positioning aperture 38b by inserting the staple reinforcement 28 into the positioning aperture 38b of the support bracket 35. Consequently, as the Diametrically expanded portion 61b at the distal end of the cape washer 61 can be simply attached to the vehicle body panel 21, the rear post attachment 25 can simply be assembled to the vehicle body panel 21. Returning to Figure 1, the hanger 50 can be provided above the rear side window glass 16 by providing the hanger 50 in the frame portion 26 of the rear post attachment 26. With this hanger 50, some things such as passenger clothing can be hung on the hook 52 that is normally stored in box 51 of hanger 50 by pulling it out of box 51. Figure 4 is a sectional view taken at along the line 4-4 in Figure 1 and shows the relationship between the frame portion 26 of the rear post attachment 25 and the hanger 50. In the structure of the vehicle body 20 with a protective air bag for the head, the box 51 for the hanger 50 is formed integrally with the portion of the frame 26 of the accessory of the rear post 25 in a recessed shape in which the box 51 is hollowed up, and the box 51 is attached to the upper portion 23. of the glass frame member of the rear window 22 with a metal screw 56, the hook 52 for the hanger 50 ae provides in the box 51 through a pin 53 in such a way that it can rotate freely around the pin 53 in the directions denoted by an arrow ®. In this manner, the hook 52 is allowed to rotate about the pin 53 to move between a stored position (a position shown by the solid line) where the hook 52 is stored in the box 51 and a position in use (a position shown by an imaginary line) where the hook 52 is removed from the box 51. The accessory of the upright 25 can be rigidly attached to the upper portion 23 of the glass frame member of the side window 22 forming the box 51 for the hanger 50 integrally with the portion of the frame 26 of the accessory of the rear post 25 and joining the box 51 to the upper portion 23 of the glass frame member of the side window 22 with the metal screw 56. In addition, the number of components can be reduced by forming the box 51 for the hanger 50 integrally with the portion of the frame 26 of the accessory of the rear post 25. In addition, the number of man-hours required for the assembly can be attempted It can be carried out by simply elaborating the construction of the body structure of the vehicle 20 with a protective air bag for the head through the reduction in the number of components involved. Figure 5 is a view as seen in a direction indicated by the arrow 5 in Figure 4. The box 51 for the hanger 50 is formed integrally with the portion of the frame 26 of the accessory of the rear pillar 25 in the form recessed, the reinforcements 54, 54 are formed in the side walls 50a, 50a of the box 51 formed in the recessed manner, respectively, and both ends of the pin 53 are attached to the reinforcements 54, 54 formed in the side walls 50a, 50a, whereby, the pin 50 is attached to a portion of the base 52a of the hook 52. Returning to Figure 4, the construction of the hanger 50 will be described in detail. An open edge 51a of the box 51 is connected to the frame portion 26 of the rear post attachment 25 by forming the box 51 for the hanger 50 integrally with the portion of the frame 26 of the accessory of the rear post 25 in the hollowed out shape. where the box 51 is hollowed up. The box 51 is provided with a roof portion 55, and the metal screw 56 is inserted into a through hole 55a in the roof 55, such that the metal screw 56 is screwed into a washer 57 which it has been assembled to the box 51 above, whereby the end washer 57 can be rigidly attached to the box 51. The accessory of the rear post 25 can be attached to the upper portion 23 of the glass frame member of the rear side window 22 together with the box 51 by inserting the end washer 57 into a connecting hole in the upper portion 23 of the member of the rear window. glass frame and rear side window 22. When the roof portion 55 is covered with a protective plate 58, a portion of the head 56a of the metal screw 56 can also be covered with the protective plate 58. Mainly, in the case 51 , a left clamping hole 55b is formed at the left end of the roof portion 55 and a right clamping hole 55c is formed at the right end thereof, such that a clamping piece 58a of the protective plate 58 it is secured in the left clamping hole 55b and a clamping paw 58b of the protective plate 58 is secured in the right clamping hole 55c, whereby the protective plate 58p can be fixed to the portion of the roof 55. In this way, as described above, the portion of the roof 55 can be covered with the protective plate 58 and the head portion 56a of the metal screw 56 can be covered with the protective plate 58
The pin 53 is provided in the box 51 on the edge of a side of the open edge 51a that faces the outside of the vehicle body (see Figure 5), so that the portion of the base 52a of the hook 52 is supported by the pin 53, whereby the hook 52 is allowed to freely rotate about the pin 53 in the directions indicated by the arrows ®. In addition, a reinforcement 51c is provided in a stepped portion 51b provided in the box 51 on the edge of the open edge side 51a that faces the outside of the vehicle body, and an upper end of a spring in the plate 59 it is fixed to an upper surface of the reinforcement 51c with a metal screw 66, while a distal end 59a of the spring of the plate 59 is inserted inside the box 51 through a through hole 51d in the box 51, in such a way that the distal end 59a of the spring of the plate 59 inserted in this manner is connected to the base portion 52a (a first pressing surface 52b) of the hook 52, whereby the spring of the plate 59 is maintained in a state wherein the spring of the plate 59 is inclined substantially in a U-shape. In this way, the hook 52 can be held in the stored position (the position shown by the solid line) by virtue of the spring inclination force of the spring. plate 59.
A latching portion 52b formed on the distal end of the latch 52 by tilting a portion of the distal end of the hook 52 can be stored inside the housing 51 when the hook 52 is placed in a stored position. As this occurs, the hook 52 can be stably held in the position stored inside the case 51 allowing the engaging portion 52d to be connected to a retainer 67. Note that the retainer 67 is attached to the protective plate 58. By using the hook 52, the finger is engaged in a recess 52e in the engaging portion 52d to rotate the hook 52 to the position in use (the position shown by the imaginary line) against the outward inclination of the spring of the plate 59. In this state, the hook 52 can be held in the position in use by allowing the base portion 52a (a second pressing surface 52c) of the hook 52 to be pressed by the spring of the plate 59. In this state, Some items such as passenger clothing may be hung on the hook portion 52d of the hook 52. Incidentally, the side portion 31 of the roof liner 30 is superimposed on the rear surface 26a (the rear surface of the accessor). rear pillar 25) of the frame portion 26 of the rear post attachment 25, which is formed integrally with the box 51 at a location on the passenger compartment side thereof. The air bag 42 is placed on a rear surface 30a of the roof covering 30, and the air bag 42 is then attached to the support bracket 43, which in turn attaches to the upper portion 23 of the frame member of the frame. Side window glass 22 with metal screws 41 (shown in Figure 1). In addition, a cushion material 68 is provided in the frame portion 26 of the rear post attachment 25 that is integrally formed with the box 51 at a location that is located on one side of the portion of the frame 26 that faces the outside of the vehicle body, and a portion of the edge 23a of the glass frame member of the side window 22 is pressed against the cushion material 68. Note that an upper end of the glass of the rear side window 15 is connected to the cushioning material 68. Next, the function of the body structure of the vehicle with a protective air bag for the head will be described with reference to Figures 6 and 7. Figures 6a, 6b are the first explanatory views explaining the function of the structure of the vehicle body with a protective air bag for the head according to the invention. In Figure 6A, when the inflator 41 of the body structure of the vehicle 20 with a protective air bag for the head is activated, a gas is supplied to the air bag 42 from the inflator 41, by which the air bag 42 starts to expand, and the expansion pressure of the air bag 42 is applied to the rear surface 30a of the roof liner 30 (see Figure 4). When the expansion pressure of the air bag 42 is applied to the rear surface 30 a of the roof liner 30, the side portion 31 of the roof liner 30 is deformed and separated from the frame portion 26 of the rear pillar attachment. When the expansion pressure of the air bag 42 is further applied to the side of the rear surface 30a of the roof covering from this state, an opening is generated between the frame portion 26 of the rear pillar attachment 25 and the side portion. 31 of the roof liner 30. Next, a lower portion 42a of the air bag 42 begins to expand within the passenger compartment through the opening thus generated. In order to allow the air bag 42 to expand within the passenger compartment from the lower portion 42a thereof, the side portion 31 of the roof covering 30 needs to be pushed towards the side of the passenger compartment with the expansion pressure. of the air bag 42. As this occurs, the expansion pressure of the air bag 42 also applies to the frame portion 26 of the rear disengagement fitting 25 through the side portion 31 of the roof covering 30. Subsequently, the box 51 for the hanger 50 is formed integrally with the portion of the frame 26 of the accessory of the rear post 25 (see Figure 4), and the box 51 is attached to the upper portion 23 of the glass frame member of the side window 22, whereby the portion of the frame 26 of the accessory of the rear post 25 is rigidly joined to the upper portion 23 of the glass frame member of the side window 22 According to the construction, when the air bag 42 expands, the upright accessory 25 can be held firmly in the upper portion 23 of the glass frame member of the side window 22. On the other hand, in a that the side portion 31 of the roof covering 30 is pushed towards the side of the passenger compartment by virtue of the expansion pressure of the air bag 42 which results when the air bag 42 expands into the passenger compartment, the pressure of expansion of the air bag 42 also applies to the rear portion 32 of the roof covering 30. The edge of the rear portion 32 of the roof covering 30 is constructed in such a way that it joins the panel of the vehicle body 21 (shown in Figure 3) through the support bracket 35. According to the construction, when the air bag 42 expands, the rear portion 32 of the ceiling covering 30 can to be in a state where the rear portion 32 overlaps the rear surface 27b of the rear projected portion 27 of the rear post attachment 25. In Figure 6b, when the airbag 42 begins to expand, the portion of the frame 26 of the rear pillar attachment 25 can be held firmly in the upper portion 23 of the glass frame member of the side window 22, and further, the rear portion 32 of the roof covering 30 can be maintained on the side of the rear surface 27b of the rear projected portion 27 of the rear post attachment 25 (shown in Figure 6A). In this way, the air bag 42 can expand within the passenger compartment through the opening S generated between the frame portion 26 of the rear post attachment 25 and the side portion 31 of the roof covering 30.
Figure 7 is a second explanatory view explaining the function of the body structure of the vehicle with a protective air bag for the head according to the invention. Since the air bag 42 can expand within the passenger compartment through the opening S between the frame portion 26 of the rear post attachment 25 and the side portion 31 of the roof covering 30, the air bag 42 can expand from Stable way, and the performance of the airbag can be displayed efficiently. Note that although the embodiment has been described in such a way that the box 51 for the peg 50 is formed integrally with the portion of the frame 26 of the accessory of the rear pillar 25, the frame member 26 of the accessory of the rear post 25 is rigidly attached to the upper portion 23 of the glass frame member of the side window 22, and in addition, the edge of the rear portion 32 of the roof covering 30 is attached to the body panel of the vehicle 21 by means of the support bracket 35, even if only one of these two constructions is implemented, or even if only the box 51 for the hanger 50 is formed integrally with the portion of the frame 26 of the accessory of the rear post. in such a way that the frame member 26 of the rear post attachment 25 is rigidly attached to the upper portion 23 of the glass frame member of the side window 22 , an effectiveness similar to that achieved by the embodiment can also be achieved. Furthermore, although the embodiment has been described in such a way that the air bag 42 of the head protective air bag 40 is extended in the accessory of the central pillar 12, the invention is not limited to the construction , and the air bag 42 can extend to the attachment of the front pillar 11. In accordance with the aspect of the invention, the box for the hanger is integrally formed with the pillar attachment, and the box is attached to the portion The upper part of the glass frame member of the side window, whereby, the upright accessory can be rigidly attached to the upper portion of the glass frame member of the side window. According to the construction, in the event that the expansion pressure of the air bag is applied to the upright accessory, the upright accessory can be fixedly held in the upper portion of the glass window member of the side window. Consequently, since the air bag can expand stably, the performance of the air bag can be exhibited sufficiently.