JP2007062599A - Occupant protection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an occupant protection device capable of improving occupant holding performance by precisely covering the indoor side of a window positioned on the outdoor side of a shoulder part of a seat belt. <P>SOLUTION: This occupant protection device S1 is furnished with a curtain bag 40 and a bag 70 for the shoulder part. The bag 40 deploys and inflates downward from a stored state where it is folded on the upper side of the window W1 by flowing gas for inflation into it so as to cover the indoor side of the window W1 on the front side adjacent to a pillar part CP including the pillar part CP arranging an anchor 35 to be engaged with the seat belt 29. The bag 70 deploys and inflates from a storage portion in the circumference of the window W1 by flowing the gas for inflation into it so as to cover the indoor side of the window W1 on the outdoor side of the shoulder part 31 in the neighborhood of the shoulder part 31 extending in the indoor side direction diagonally to the lower front toward a shoulder part MS of an occupant M from the anchor 35 on the seat belt 29. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an occupant protection device that is mounted on a vehicle and expands and inflates a bag by flowing an inflation gas so as to cover the inside of a vehicle window when an impact is applied to a side surface of the vehicle. In particular, the present invention relates to an occupant protection device that can protect an occupant even when the vehicle rolls over.

  Conventionally, as an occupant protection device that can protect an occupant's head or the like even when the vehicle rolls over, a curtain bag that pulls the seat belt of a seated occupant and stores it in the upper side of the window during operation In some cases, the curtain bag is expanded and inflated so that the inflation gas is allowed to flow in to cover the inside of the window (see, for example, Patent Document 1).

In this occupant protection device, even when the curtain bag interferes with the shoulder portion of the seat belt from the vicinity of the occupant's shoulder to the chest, the seat belt is pulled by the pretensioner and removed from the vicinity of the occupant's shoulder. Conversely, the lower edge of the curtain bag is guided by the interfering seat belt shoulder and approaches the head of the occupant seated on the seat. It was possible to protect the passenger's head by reducing the amount of movement.
Japanese Patent Laid-Open No. 2002-240666

  However, in the conventional occupant protection device, the shoulder portion of the seat belt extends obliquely forward and downward from the anchor disposed in the pillar portion toward the occupant's shoulder portion. It is inevitable that a gap is generated between the outside of the vehicle and the window. When the curtain bag is guided to the inner surface of the shoulder portion, the lower edge side is separated from the window toward the inner side of the vehicle and turned upward, and the curtain bag is appropriately opened in the vehicle interior / exterior direction. The area that covers the inside of the car will be reduced.

  In a vehicle having a large window and a lower edge (belt line) of the window positioned below, the gap generated between the vehicle outer side of the shoulder portion and the window on the front side of the pillar portion becomes large. Therefore, there is room for improvement in preventing the reduction of the area that substantially covers the inside of the window.

  The present invention solves the above-described problems, and provides an occupant protection device capable of accurately covering the vehicle interior side of a window located on the vehicle exterior side of a shoulder portion of a seat belt and improving occupant holding performance. For the purpose.

An occupant protection device according to the present invention allows an inflating gas to flow so as to cover the inside of a front window adjacent to a pillar portion, including a pillar portion provided with an anchor for locking a seat belt. A occupant protection device comprising a curtain bag that expands and expands downward from a storage state folded on the upper side of the window,
In the vicinity of the shoulder portion extending in the vehicle interior direction diagonally forward and lower so as to go from the anchor in the seat belt toward the shoulder portion of the occupant, the inflation gas is allowed to flow so as to cover the vehicle interior side of the window on the vehicle exterior side of the shoulder portion, A shoulder bag that expands and inflates from a storage part around the window is provided.

  In the occupant protection device according to the present invention, when the curtain bag is activated, the curtain bag is inflated downward from the storage state folded on the upper side of the window, and anchors the seat belt. The inside of the window on the front side of the pillar part is covered, including the pillar part in which is disposed. At the same time, the shoulder bag inflates, expands and inflates from the storage area around the window on the front side of the pillar portion, and diagonally forwards and downwards from the anchor in the seat belt toward the passenger's shoulder. The vehicle interior side of the window on the vehicle exterior side of the shoulder portion is covered in the vicinity of the shoulder portion extending in the vehicle interior direction.

  That is, in the occupant protection device according to the present invention, when the vehicle rolls over, the curtain bag and the shoulder bag close the vehicle interior of the window near the occupant, so the curtain bag and the shoulder bag. The occupant's head, arms, and the like can be prevented from jumping out of the vehicle from the window, and the occupant holding performance for restraining the occupant's head, arms, etc. on the vehicle interior can be improved.

  Therefore, in the occupant protection device according to the present invention, the shoulder portion bag used in combination with the curtain bag can accurately cover the vehicle interior side of the window located on the vehicle exterior side of the shoulder portion of the seat belt. Can be improved.

  The shoulder bag may be housed on the side of the pillar portion on the side of the window, but it may be housed on the lower side of the window so as to extend upward from the housing part when deployed. desirable.

  In such a configuration, the shoulder bag that has been deployed and inflated is arranged so as to extend upward from the lower side of the window in the vicinity, continuously over the lower edge of the window, The occupant holding performance near the lower edge of the window on the vehicle exterior side of the shoulder portion can be improved. Even when the curtain bag interferes with the shoulder portion of the seat belt and the lower edge of the curtain bag is greatly separated from the window to the inside of the vehicle, the occupant can be accurately restrained to the inside of the vehicle.

  In this case, the shoulder bag may be stored in the lower edge of the window on the front side of the pillar part, or may be stored in a seat installed on the vehicle interior near the window on the front side of the pillar part. You may let them.

  The curtain bag may be configured by disposing a storage recess that can store the shoulder bag so as to extend upward from the lower edge when the inflation is completed.

  If comprised in this way, interference with a curtain bag and a bag for shoulder parts will be suppressed, and it can prevent making a curtain bag and a part of bag for shoulder parts project on the inside of a car unnecessarily.

  In addition, the storage recess provided on the lower edge of the curtain bag is installed by the occupant with the curtain bag that has been deployed and inflated in consideration of the position adjustment in the longitudinal direction of the seat and the fluctuation range of the physique of the occupant seated on the seat You may set as a magnitude | size which does not have a possibility of interfering with the shoulder part of a seatbelt. In this case, in the curtain bag, the storage recess does not interfere with the shoulder portion of the seat belt, so that the lower edge side itself can be prevented from unnecessarily protruding to the inside of the vehicle. Furthermore, in this case, the shape of the shoulder bag may be set so that the vehicle interior of the window on the vehicle exterior side of the shoulder portion can be covered and stored in the storage recess of the curtain bag.

  When the shoulder bag is stored in the lower edge of the window on the front side of the pillar portion, the arrangement positional relationship with the curtain bag stored on the upper side of the window is constant, so that the curtain bag When the storage recess that can store the shoulder bag is provided with high dimensional accuracy, it is possible to store the shoulder bag in the storage recess of the curtain bag with minimal overlap and gaps when the occupant protection device operates. it can.

  On the other hand, when the shoulder bag is housed in a seat arranged inside the vehicle near the window on the front side of the pillar part, an occupant protection device is installed in a vehicle in which the position of the seat in the front-rear direction is greatly adjusted. In consideration of the case, a curtain bag in which the storage recess as described above is not provided may be used. That is, in a shoulder bag with a seat, even if the shoulder portion of the seat belt moves greatly back and forth with a large adjustment of the front and back position of the seat, the shoulder portion corresponds to the position of the shoulder portion. The shoulder bag that has been completely inflated can be disposed at a position outside the vehicle, and since there is no need to provide a storage recess in the curtain bag, the shoulder portion at the periphery of the storage recess This eliminates the need to consider interference and gaps with the bag.

  If the shoulder bag is attached with a seat, the shoulder bag is preferably provided with a side impact bag portion that expands and expands in a protective manner near the chest of the passenger seated on the seat. .

  With such a configuration, if the curtain bag and the shoulder bag are deployed and inflated at the time of the collision of the vehicle, the side collision does not occur even if the vehicle ends the collision only by the side collision without rolling over. Since the bag part for inflating is inflated, the vicinity of the chest of the occupant at the time of a side collision can be protected by the side collision bag part that has been inflated.

  In this case, the shoulder bag is provided with a shape holding part that extends the time for maintaining the internal pressure from the side collision bag part from at least the upper side to the rear side around the side collision bag part at the time of completion of the expansion, It is desirable to configure. That is, when the vehicle rolls over, it takes more time for the occupant to be restrained after the bag has been inflated than when the vehicle side impacts. Due to the shape holding portion that maintains the length of time, the shape of the shoulder bag is maintained along the substantially vertical direction, and the occupant at the time of rollover can be accurately restrained by being restrained inside the vehicle.

  At this time, since the shape holding portion is disposed from the upper side to the rear side around the side collision bag portion, the shape maintained along the substantially vertical direction of the shoulder portion bag is at least reversed. L-shaped, or as a state using a part of the side impact bag portion with reduced internal pressure, it becomes a triangular plate shape with the apex provided at the lower end, ensuring the length dimension in the front-rear direction on the upper end side, The shape covers the window.

  And since the side collision bag part of this structure can shorten the time which maintains an internal pressure conversely compared with a shape holding | maintenance part, you may reduce an internal pressure immediately after completion | finish of expansion | swelling. For this reason, if a side impact bag portion with a short time for maintaining the internal pressure is used, during a side collision of the vehicle that requires protection of the occupant's chest etc. during a short time after completion of inflation, immediately after completion of inflation Compared to the above, the side-impact bag portion that reduces the internal pressure can protect the occupant's chest and the like without pressing strongly, and can provide a soft cushioning protection.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, an occupant protection device S1 of the first embodiment includes a curtain bag 40, a shoulder bag 70, and bags 40, 70. Inflator 61, 83 for supplying inflation gas, bag covers 8, 13, mounting brackets 58, 62, 80, 84, side collision sensor 89, and control device 90 are configured and mounted on vehicle VC. Has been.

  Note that the front and rear, up and down, and left and right directions in this specification coincide with the front and rear, up and down, and left and right directions of the vehicle VC in a straight traveling state.

  In addition, a seat belt 29 is disposed in the vehicle VC on which the occupant protection device S1 is mounted. As shown in FIGS. 1 and 2, the seat belt 29 is of a three-point type, and includes a base portion 30 that extends upward along the center pillar portion CP from the lower portion of the vehicle interior I of the center pillar portion CP. A shoulder portion 31 that extends through the anchor 35 from the upper end of the vehicle 30 and extends diagonally forward and downward in the vehicle interior I, and restrains the torso MT from the vicinity of the shoulder portion MS of the occupant M seated on the seat 18 of the front seat; A lap portion 32 that extends from the lower end of 31 to the vehicle outer side O through the tongue 36 and restrains the vicinity of the waist portion MW of the occupant M is provided.

  The lower end of the base portion 30 is connected to the take-up device 34, and the take-up device 34 constantly urges the seat belt 29 to be pulled in, and if a predetermined output or more acts on the seat belt 29, The operation is performed to stop the feeding of the seat belt 29. Further, the end portion of the lap portion 32 on the vehicle outer side O is fixed to the vehicle outer side O of the seat portion 19 of the seat 18. The anchor 35 is attached to the inner panel 2 of the center pillar portion CP so as to be slidable in the vertical direction. The tongue 36 is attached to a buckle 37 fixed to the floor panel 3 of the vehicle VC in the vehicle interior I of the seat seat portion 19. The seat belt 29 is extended against the urging force of a spring means (not shown) disposed inside the winding device 34, and the tongue 36 is engaged with the buckle 37, whereby the shoulder portion 31 is provided. And the lap portion 32 restrain the seated occupant M.

  When the seated occupant M wears the seat belt 29, the upper portion 31a of the shoulder portion 31 is slanted in the vehicle interior I direction from approximately the center in the vertical direction on the rear side of the window W1 in the center pillar portion CP. It extends to the lower front side and is arranged to the vicinity of the upper end of the vehicle exterior O of the backrest 20 of the seat 18, and the lower portion 31b of the shoulder 31 wraps around the front side of the occupant M and sits on the shoulder of the seated occupant M exterior O The body part MT is restrained from the vicinity of the part MS. Since the upper portion 31a of the shoulder portion 31 of the seat belt 29 extends from the anchor 35 disposed in the center pillar portion CP to the vehicle inner side I and is disposed to the vicinity of the upper end of the seat back portion 20, the vehicle of the shoulder portion 31 is provided. A gap H (see FIG. 2) is formed between the window W1 located on the outer side O.

  The curtain bag 40 is folded over the lower edge side of the front pillar portion FP, the lower edge side of the roof side rail portion RR, and the upper side of the rear pillar portion RP at the upper edge side periphery of the windows W1 and W2 inside the vehicle VC. When being expanded and expanded, it expands and expands into a substantially rectangular plate shape, and the inside W of the rear pillar portion RP on the rear side of the window W2 and the center pillar portion CP between the windows W1 and W2, and the rear pillar portion RP on the rear side of the window W2, It is comprised so that it may cover.

  In the case of the first embodiment, the window W1 is disposed on the front door 10 of the vehicle VC, and is disposed between the pillar portions FP and CP so as to be adjacent to the front pillar portion FP and the center pillar portion CP. Yes. The window W2 is disposed on the rear door 16 and is disposed between the pillar portions CP and RP so as to be adjacent to the center pillar portion CP and the rear pillar portion RP.

  In addition, when the curtain bag 40 is inflated so as to cover the vehicle interior I of the windows W1 and W2 and the pillar portions CP and RP, the lower edge 42 is near the belt line BL that becomes the lower edge of the windows W1 and W2. Furthermore, if the occupant M seated on the seat 18 is wearing the seat belt 29, the lower edge 42 side of the bag 40 that has been inflated is connected to the upper portion 31 a of the shoulder portion 31. The interference part 57 is regulated by the vehicle inner side I of the upper part 31a of the shoulder part 31, and is separated from the window W1 by the gap H.

  As shown in FIGS. 1 to 3 and 6, the curtain bag 40 is formed by bag weaving from synthetic fibers such as polyamide and polyester, and is inflated between the vehicle inner wall portion 44a and the vehicle outer wall portion 44b. The gas inflow part 44 into which the working gas G flows in and the non-inflowing part 51 in which the wall parts 44a and 44b are connected to each other and into which the expansion gas G does not flow in are configured. The gas inflow part 44 includes a connection port part 45, a gas supply path part 46, and front and rear expansion parts 47 and 48.

  The connection port 45 is disposed to extend upward from the vicinity of the center in the front-rear direction of the upper edge 41 of the bag 40 and has a cylindrical shape connected to the inflator 61. The connection port 45 is externally attached to the inflator 61 and is connected to the inflator 61 using a clamp 64. The gas supply path 46 is arranged along the front-rear direction on the upper edge 41 side of the bag 40, and is configured to flow the inflation gas G flowing from the connection port 45 to the front and rear sides. The front inflating portion 47 is configured to cover a vehicle inner side I between the window W1 and the pillar portion CP by arranging a plurality (four in the embodiment) of cells 47a that swell in a bar shape in the up-down direction in the front-rear direction. ing. In addition, the rear inflating portion 48 has a plurality of (three in the embodiment) cells 48a that swell in a bar shape in the vertical direction, and is arranged in parallel in the front-back direction so as to cover the vehicle interior I of the window W2 and the rear pillar portion RP. It is configured. The front and rear inflating parts 47 and 48 communicate the upper ends of the cells 47a and 48a with the gas supply path 46, and also communicate the lower ends with each other adjacent to the front and rear. The adjacent cells 47a and 48a of the front and rear inflating parts 47 and 48 are communicated with each other by a communication part 49 at the lower end.

  The non-inflow part 51 includes a peripheral part 52 arranged around the gas inflow part 44, a plurality (five in the embodiment) of attachment parts 53, a plurality (five in the embodiment) of thickness regulating parts 54, and The plate-like portions 55 and 56 are provided. Each attachment portion 53 is disposed so as to extend upward on the upper edge 41 side of the bag 40, and includes an attachment hole 53a. A mounting bracket 58 made of sheet metal is fixed to these mounting portions 53, and bolts 59 are fixed to the inner panel 2 on the body 1 side of the vehicle VC. Each bolt 59 is fastened to a nut 2 b provided in the mounting hole 2 a of the inner panel 2.

  Each thickness restricting portion 54 has a vertical direction within the region of each inflating portion 47, 48 so that the front and rear inflating portions 47, 48 are not spherical but can be inflated in a plate shape by regulating the thickness. Are arranged in parallel in the front-rear direction. Each of the cells 47a and 48a is partitioned and disposed in the thickness regulating portion 54. The plate-like portions 55 and 56 are disposed in order to reduce the volume into which the inflation gas flows while securing the overall shape of the curtain bag 40.

  The curtain bag 40 is folded by bellows folding or the like so that the lower edge 42 side approaches the upper edge 41 side, is covered with the bag cover 8 above the windows W1 and W2, and is stored in the vehicle VC. The Rukoto. The bag cover 8 includes a lower edge 4a of a synthetic resin pillar garnish 4 disposed on the inner side I of the front pillar portion FP, and a synthetic resin roof head disposed on the inner side I of the roof side rail portion RR. The lining 5 is composed of a lower edge 5a. When the curtain bag 40 is deployed and inflated, the curtain bag 40 pushes and opens the lower edge 4a of the front pillar garnish 4 as the bag cover 8 and the lower edge 5a of the roof head lining 5 and protrudes toward the vehicle inner side I.

  As shown in FIGS. 1, 2, 4 and 6, the shoulder bag 70 is folded and stored in the vicinity of the center pillar CP on the lower edge of the window W1, and is formed into a substantially rectangular plate shape when expanded. The vehicle is configured to expand and expand so as to cover the vehicle inner side I of the window W1 on the vehicle outer side O of the shoulder portion 31 of the seat belt 29. In the case of the embodiment, when the occupant M seated on the seat 18 wears the seat belt 29, in the gap H area on the vehicle outer side O of the upper portion 31 a of the shoulder portion 31, The bag 70 is disposed so as to close the vehicle inner side I of the window W1 close to the window W1, including the front and rear. And the length dimension of the up-down direction and the front-back direction of the bag 70 covers the area where the interference part 57 with the shoulder part 31 on the lower edge 42 side of the curtain bag 40 is away from the window W1 with a margin. Is set. The margin of the length dimension is set in consideration of the fluctuation range of the front end position and rear end position when the seat 18 moves back and forth, or the physique of the seated occupant M.

  The shoulder bag 70 of the first embodiment is housed in the front door 10. And the lower edge BL side of the window W1 of the synthetic resin door trim 12 located on the vehicle interior side I of the front door 10 is configured as a bag cover 13, and the shoulder portion bag 70 is covered with the bag cover 13. It is stored. The bag cover 13 is formed with a thinly-scheduled portion 13a so as to be easily broken, and the shoulder bag 70 breaks the portion to be broken 13a when opened and expands (see FIG. 6). ), And through the opening 14, from the lower edge BL of the window W1 to the upper vehicle inner side I so as to cover the vehicle inner side I of the window W1 on the vehicle outer side O of the upper portion 31a of the shoulder portion 31 of the seat belt 29. Protruding.

  The shoulder bag 70 is also formed by bag weaving from a synthetic fiber such as polyamide or polyester, and a gas inflow portion for allowing the inflation gas G to flow between the vehicle inner wall portion 71a and the vehicle outer wall portion 71b. 71 and the non-inflow part 75 which is formed so that wall part 71a * 71b might couple | bond together, and does not flow in the gas G for expansion | swelling. The gas inflow portion 71 includes a connection port portion 72 and an expansion portion 73, and the non-inflow portion 75 includes a peripheral edge portion 76, two attachment portions 77, and one thickness regulating portion 78. Has been.

  The connection port portion 72 is disposed so as to protrude forward from the front lower edge of the bag 70 and has a cylindrical shape connected to the inflator 83. The connection port 72 is externally attached to the inflator 83 and is connected to the inflator 83 using a clamp 86. The inflating portion 73 includes a plurality (two in the embodiment) of cells 73a that swell in a vertical bar shape in the front-rear direction so as to cover the vehicle inner side I on the lower edge BL side of the window W1 in the vicinity of the pillar portion CP. It is configured.

  The peripheral portion 76 of the non-inflow portion 75 is disposed around the gas inflow portion 71, and the attachment portions 77 are disposed at two locations on the front and rear sides of the lower edge 70 b side of the bag 70. Each mounting portion 77 is configured to include a mounting hole 77 a, and a mounting bracket 80 made of sheet metal is fixed to the door frame 11 of the front door 10 with bolts 81. Each bolt 81 is fastened to a predetermined screw hole provided in the door frame 11.

  The thickness restricting portion 78 is disposed in a bar shape along the vertical direction in the region of the inflating portion 73 so that the inflating portion 73 is not spherical but can be inflated in a plate shape by regulating the thickness. The portion 73 is divided into two cells 73a.

  The shoulder portion bag 70 is folded by bellows folding or the like so that the upper edge 70a side approaches the lower edge 70b side, and is covered with the bag cover 13 on the lower edge BL side of the window W1. Will be stored.

  The inflator 61 for supplying the inflation gas G to the curtain bag 40 and the inflator 83 for supplying the inflation gas G to the shoulder bag 70 are both cylinder types as shown in FIGS. As described above, the clamps 64 and 86 are used to connect to the connection ports 45 and 72 of the bags 40 and 70. These inflators 61 and 83 are operated by inputting an operation signal from the control device 90. The inflator 61 is held by the mounting bracket 62, and the mounting bracket 62 is fastened to the inner panel 2 of the roof side rail portion RR by bolts 63 and 63, thereby being fixed near the upper portion of the center pillar portion CP. . Further, the inflator 83 is held by a mounting bracket 84, and the mounting bracket 84 is fixed to the vicinity of the lower edge BL of the window W1 by bolts 85 and 85 to the door frame 11 of the front door 10.

  The control device 90 outputs an operation signal to the inflators 61 and 83 when a side collision detection signal is input from the side collision sensor 89 when a predetermined impact or more is applied to the side surface of the vehicle VC. The side collision sensor 89 and the control device 90 are disposed at a predetermined position of the vehicle VC and are electrically connected to each other. The control device 90 is also electrically connected to the inflators 61 and 83.

  Then, to explain the work of mounting the occupant protection device S1 on the vehicle VC, the curtain bag 40 is folded by bellows folding or the like so that the lower edge 42 side approaches the upper edge 41 side, and can be broken for preventing collapse. A predetermined portion of the curtain bag 40 is wrapped with a wrapping material (not shown), and the inflator 61 and the mounting brackets 58 and 62 are attached to form a curtain bag assembly. In this curtain bag assembly, the mounting brackets 58 and 62 are arranged at predetermined positions on the inner panel 2, the mounting holes 53 a and the like are inserted and bolts 59 and 63 are fixed, and the mounting brackets 58 and 62 are fixed. Fix to the inner panel 2 and attach to the body 1.

  Similarly, the shoulder portion bag 70 is folded by accordion folding so that the upper edge 70a approaches the lower edge 70b, and a predetermined portion of the bag 70 is formed by a ruptureable wrapping material (not shown) for preventing collapse. And the inflator 83 and the mounting brackets 80 and 84 are attached to form a shoulder bag assembly. In this bag assembly, the mounting brackets 80 and 84 are arranged at predetermined positions of the door frame 11, the mounting holes 77 a and the like are inserted and bolts 81 and 85 are fixed, and the mounting brackets 80 and 84 are fixed to the door frame 11. And attached to the front door 10.

  Next, the door trim 12 and the like are assembled to the front door 10 and predetermined lead wires for inputting an operation signal from the control device 90 to each inflator 61 and 83 are connected, and the front door 10 and the rear door 16 are further connected to the pillars. If the garnishes 4, 6, 7 and the roof head lining 5 are attached to the vehicle VC, the occupant protection device S1 can be mounted on the vehicle VC.

  When the side collision sensor 89 detects a side collision of the vehicle VC while the vehicle VC in a state where the occupant M seated on the seat 18 is wearing the seat belt 29 is traveling, the collision from the side collision sensor 89 occurs. The control device 90 inputs the detection signal, and the control device 90 outputs an operation signal to the inflators 61 and 83. Then, since the inflators 61 and 83 discharge the inflation gas G, the curtain bag 40 causes the inflation gas G to flow from the connection port 45, and the inflation gas G flows into the gas supply path 46 of the gas inflow portion 44. After that, it flows into the front and rear inflating portions 47 and 48. Therefore, the curtain bag 40 is inflated while canceling the folding, and the wrapped wrapping material (not shown) is broken, and the bag cover 8 on the lower edges 4a and 5a side of the front pillar garnish 4 and the roof head lining 5 is further removed. As shown by the two-dot chain line in FIGS. 1 and 2 and the solid line in FIGS. 5 and 6, the windows W1, W2, the center pillar portion CP, and the rear pillar portion RP are protruded downward from above the windows W1 and W2. It will expand and expand greatly so as to cover the vehicle interior side I.

  At the same time, because of the inflation gas G from the inflator 83, the shoulder bag 70 causes the inflation gas G to flow from the connection port 72, and the inflation gas G flows into the inflation portion 73 of the gas inflow portion 71. The bag 70 expands while being unfolded, breaks the wrapped wrapping material (not shown), and further breaks the planned breakage portion 13a of the bag cover 13 of the door trim 12. As shown in FIGS. As shown by the dotted line and the solid line in FIGS. 5 and 6, while projecting upward from the lower side of the window W <b> 1 through the opening 14 formed by being broken, on the vehicle outer side O of the upper portion 31 a of the shoulder portion 31 of the seat belt 29. It expands and expands so as to cover the vehicle interior I of the window W1.

  That is, in the occupant protection device S1 of the first embodiment, the vehicle VC rolls over during operation, and in the vicinity of the shoulder portion 31, the vehicle in the window W1 so as to dive from the vicinity of the lower edge 42 of the interference portion 57 of the curtain bag 40. Even if the head MH, the arm MA, or the like moves in the outer O direction, the shoulder bag 70 that covers the vehicle inner side I of the window W1 on the vehicle outer side O of the shoulder portion 31 is the head MH of the occupant M. The arm MA or the like is prevented from jumping out from the window W1 to the vehicle outer side O, and the head MH or the arm MA of the occupant M is received and returned to the vehicle inner side I. Further, in a portion away from the vicinity of the shoulder portion 31, the curtain bag 40 covering the vehicle inner side I of the window W1 returns the head MH, the arm MA, and the like to the vehicle inner side I. Therefore, since the inflated curtain bag 40 and the shoulder bag 70 restrain the occupant M's head MH, arm MA, and the like on the vehicle interior I, the occupant holding performance can be improved. it can.

  Therefore, in the occupant protection device S1 of the first embodiment, the vehicle interior I of the window W1 positioned on the vehicle exterior O of the shoulder portion 31 of the seat belt 29 is accurately covered by the shoulder portion bag 70 used together with the curtain bag 40. Therefore, occupant holding performance can be improved.

  And in 1st Embodiment, the shoulder part bag 70 is accommodated in the downward side of the window W1, and is arrange | positioned so that it may extend upwards from the lower edge BL side of the window W1 which is an accommodating part at the time of expansion | deployment. ing.

  That is, since the shoulder bag 70 that has been expanded and inflated is continuously extended from the lower side of the window W1 in the vicinity thereof so as to extend over the lower edge BL of the window W1, The occupant holding performance near the lower edge BL of the window W1 on the vehicle outer side O near the upper portion 31a of the shoulder portion 31 can be improved. Therefore, even when the curtain bag 40 interferes with the shoulder portion 31 of the seat belt 29 and the lower edge 42 is greatly separated from the window W1 toward the vehicle interior I, the occupant M is accurately restrained by the vehicle interior I. be able to.

  In the occupant protection device S2 of the second embodiment, as shown in FIGS. 7 and 8, a curtain bag 40A, a shoulder bag 92, inflators 61A and 104 that supply inflation gas to the bags 40A and 92, and a bag cover 8 25, mounting brackets 23, 58, and 62, a side collision sensor 89, and a control device 90.

  In the curtain bag 40A of the second embodiment, as shown in FIGS. 7, 9, 12, and 13, the front inflatable portion 47 is recessed upward from the lower edge 42 side in a substantially rectangular shape, and the shoulder portion bag 92. The curtain recess according to the first embodiment is that the number of the thickness restricting portions 54 of the front inflating portion 47 is reduced along with the placement of the housing concave portion 43. The only difference is the bag 40, and the other parts of the curtain bag 40A are the same as the curtain bag 40. In addition, the accommodation recess 43 is mounted on the occupant M by the curtain bag 40A, which has been deployed and inflated, in consideration of the position adjustment in the front-rear direction of the seat 18A and the fluctuation range of the physique of the occupant M seated on the seat 18A. The seat belt 29 is set to a size that does not cause interference with the upper portion 31 a side of the shoulder portion 31 of the seat belt 29 and that can accommodate the shoulder portion bag 92.

  Further, the inflator 61A also has the same capacity as the inflator 61 of the first embodiment because the curtain bag 40A includes the storage recess 43 and has a smaller volume, and therefore has a smaller output than the inflator 61 of the first embodiment. Since it is handled in the same manner, the description is omitted.

  In the second embodiment, as shown in FIGS. 8 and 10, the shoulder bag 92 includes a side collision bag portion 93 and a shape holding portion 100, and is disposed on the vehicle inner side I of the window W1. The seat 18A is stored in the front seat.

  As shown in FIGS. 8 to 10, 12, and 13, the shoulder bag 92 is folded and stored in the side surface portion of the vehicle outer side O of the backrest portion 20 </ b> A of the seat 18 </ b> A and is discharged from the inflator 104. When the seat is inflated, the storage recess 43 of the curtain bag 40A that has been inflated is closed from the vicinity of the outer side O of the chest MB of the occupant M seated on the seat 19, and the shoulder of the seat belt 29 It is set to a substantially rectangular plate shape having a size until the vicinity of the vehicle inner side I of the window W1 on the vehicle outer side O of the upper portion 31a of the portion 31 is covered.

  The side collision bag portion 93 has a substantially rectangular plate shape in which the thickness direction is arranged in the in-outside direction (the left-right direction of the vehicle VC) in the in-vehicle direction, and the occupant seated on the seat portion 19 at the completion of inflating. It is comprised so that it may be arrange | positioned in the vehicle outer side O of M chest MB. The bag portion 93 is provided with a tether 95 that connects the wall portions 94a and 94b facing each other in the vehicle interior / exterior direction of the peripheral wall 94 to regulate the thickness of the bag portion 93 when the expansion is completed. On the rear edge 93b side of the bag portion 93 when the inflation is completed, an inflow port 96 for allowing the inflation gas G to flow in is formed.

  When the shoulder bag 92 is completely inflated, the shape holding part 100 swells in a laterally inverted L shape so as to cover the side collision bag part 93 from the upper edge 93a side to the rear edge 93b side. It is configured as such. That is, the shape holding part 100 extends downward from the rear end of the horizontal bar part 101 and is connected to the upper side which is the upper edge 93a side of the bag part 93, and the bag part 93b. And a vertical bar portion 102 that is connected to the rear side that is the rear edge 93b side. The vertical bar portion 102 is formed with an opening communicating with the inlet 96 (not shown), an opening for projecting a bolt 23b described later (not shown), and an opening for projecting a lead wire (not shown).

  The inflator 104 for inflating the shoulder portion bag 92 is a cylinder type and includes two gas discharge ports 104a and 104b for discharging the inflating gas G. In the vertical bar portion 102 of the shape holding portion 100, It is arranged. The gas discharge port 104 b has a tip inserted into the side collision bag portion 93 through the inflow port 96. In addition, a sealing material (not shown) is disposed on the periphery of the inflow port 96 so as to ensure mutual sealing performance between the bag portion 93 and the shape holding portion 100.

  Further, as shown in FIGS. 8 to 10, the inflator 104 is fastened with a nut 24 to the frame 21 of the seat 18 </ b> A using two mounting brackets 23. Each mounting bracket 23 is fixed to the holding ring portion 23a so as to extend from the holding ring portion 23a and a holding ring portion 23a made of a substantially annular sheet metal that holds and holds the inflator 104 by reducing the diameter. And a bolt 23 b for fastening 24. The operation of the inflator 104 is controlled by the control device 90 that receives the collision detection signal from the side collision sensor 89.

  The shape retaining portion 100 has a coating layer 100b such as silicon rubber for preventing gas leakage within the peripheral wall 100a so as to suppress gas leakage and maintain the internal pressure longer than the side collision bag portion 93. It is applied to at least one of the circumferential side or the outer circumferential side.

  By the way, the time for maintaining the internal pressure value that can protect the occupant by acting as a cushion is set to about several tens to several hundreds ms (about 100 ms in the embodiment) in the side collision bag portion 93 after completion of the inflation. The shape holding unit 100 is set to about 3 to 9 seconds (about 6 seconds in the embodiment) after completion of the expansion.

  The side collision bag portion 93 and the shape holding portion 100 are formed by stitching a woven fabric having a predetermined shape such as polyamide, respectively, and are connected to each other to form the shoulder portion bag 92. The coating layer 100b is provided in advance on the woven fabric that is manufactured and forms the shape holding portion 100 in a bag shape. In addition, when forming the shape holding part 100 into a bag shape, the inflator 104 to which the mounting brackets 23 and 23 are attached is arranged in the bag 100 and an operation signal for each bolt 23b and the inflator 104 is input. The lead wire that is not used is projected out of the bag 104 while ensuring sealing performance.

  When the inflator 104 to which the mounting bracket 23 is attached is built in to produce the shoulder portion bag 92, the bag is folded by bellows folding or the like so that the front edge 92a approaches the rear edge 92b, and further the upper edge 92c side. When the bag 92 is folded downward, the folding of the bag 92 is completed, and then a bag assembly for the shoulder portion can be formed by wrapping a predetermined portion of the bag 92 with a wrapping material (not shown) for preventing collapse. Thereafter, each bolt 23b is inserted into the frame 21 while being inserted into the substantially half-divided cylindrical back plate 22, and the nut 24 is fastened to each bolt 23b, whereby the shoulder bag assembly is attached to the seat 18A. Can be assembled.

  The seat 18A is preliminarily assembled with a cushion 26 and an outer skin 27. After the shoulder bag assembly is assembled to the backrest portion 20A of the seat 18A, the synthetic resin airbag cover 25 is attached. The seat 18A is mounted on the vehicle VC while a lead wire (not shown) attached to the side surface of the vehicle exterior O of the backrest portion 20A and extending from the inflator 104 is connected to the airbag operating circuit.

  The airbag cover 25 is attached to the backrest portion 20A so that the front cover 25a side and the upper end 25b side are moved to the vehicle outer side O and opened when pushed by the inflating shoulder bag 92.

  On the curtain bag 40A side, as in the first embodiment, the curtain bag 40A is folded by bellows folding or the like so that the lower edge 42 side approaches the upper edge 41 side, and can be broken to prevent collapse. A predetermined portion of the curtain bag 40A is wrapped with a wrapping material (not shown), and the inflator 61A and the mounting brackets 58 and 62 are attached to form a curtain bag assembly. In this curtain bag assembly, the mounting brackets 58 and 62 are arranged at predetermined positions on the inner panel 2, the mounting holes 53 a and the like are inserted and bolts 59 and 63 are fixed, and the mounting brackets 58 and 62 are fixed. If fixed to the inner panel 2 and attached to the body 1, the occupant protection device S2 can be mounted on the vehicle VC.

  In the occupant protection device S2 of the second embodiment as well, during operation, the curtain bag 40A causes the inflation gas G to flow in as shown by the two-dot chain line in FIGS. 7 to 9 and the solid line in FIGS. The bag cover 8 was pushed open while breaking the wrapping material, and expanded and expanded downward from the stowed state folded above the windows W1 and W2, and an anchor 35 for locking the seat belt 29 was disposed. The interior side I of the windows W1 and W2 before and after the pillar part CP is covered, including the pillar part CP. At the same time, the shoulder bag 92 allows the inflation gas G discharged from the gas discharge ports 104a and 104b of the inflator 104 to flow into the back portion of the seat 18A below the window W1 on the front side of the pillar portion CP. From 20A, the bag cover 25 is pushed open while breaking a wrapping material (not shown), and is expanded and expanded so as to extend forward and to extend upward beyond the lower edge BL of the window W1. The vehicle interior I of the window W1 on the vehicle exterior O of the upper portion 31a of the shoulder 31 is covered in the vicinity of the shoulder 31 extending in the direction of the vehicle interior I diagonally forward and downward so as to go from the passenger 35 to the shoulder MS of the passenger M.

  That is, even in the occupant protection device S2 of the second embodiment, when the vehicle VC rolls over, even if the head MH, the arm MA, or the like of the occupant M is about to jump out of the vehicle W from the window W1, the curtain bag 40A and the shoulder bag. It is possible to improve the occupant holding performance of returning to the vehicle inner side I by 92 and restraining the head MH, arm portion MA, etc. of the occupant M to the vehicle inner side I.

  Further, the shoulder bag 92 is housed in a portion of the back portion 20A of the seat 18A on the lower side of the window W1, and is continuously extended from the lower side of the window W1 in the vicinity of the upper portion 31a of the shoulder portion 31 when expansion and expansion are completed. In particular, since it is disposed so as to extend upward across the lower edge BL of the window W1, the occupant holding performance in the vicinity of the lower edge BL of the window W1 on the vehicle outer side O of the shoulder portion 31 can be improved. .

  In the second embodiment, the curtain bag 40A is configured by disposing a storage recess 43 that can store the shoulder bag 92 so as to extend upward from the lower edge 42 side when the inflation is completed. . Therefore, the interference between the curtain bag 40A and the shoulder portion bag 92 is suppressed, and it is possible to prevent the curtain bag 40A and the shoulder portion bag 92 from projecting to the vehicle interior I unnecessarily.

  Further, in the curtain bag 40A of the second embodiment, the storage recess 43 does not interfere with the shoulder portion 31 of the seat belt 29, and thus the lower edge 42 side itself is prevented from unnecessarily protruding into the vehicle interior I. be able to.

  In particular, in the occupant protection device S2 of the second embodiment, the curtain bag 40A does not interfere with the shoulder 31 of the seat belt 29 during operation, and the shoulder bag 92 is stored in the storage recess 43 of the curtain bag 40A. Therefore, the inflated curtain bag 40A and the shoulder bag 92 are combined into a single flat plate shape, and approach the window W1 and the pillar part CP so that the window W1 and the pillar are close to each other. Covering the vehicle interior I of the portion CP, it is possible to ensure good occupant holding performance without narrowing the space inside the vehicle interior I.

  Furthermore, in 2nd Embodiment, the bag 92 for shoulder parts is provided with the side collision bag part 93 which expands and expands so that the vicinity of the chest MB of the passenger | crew M seated on the seat 18A can be protected.

  Therefore, in the second embodiment, when the vehicle VC collides, even if the vehicle VC does not roll over and ends the collision only by the side collision, the side collision bag portion 93 completes the expansion. By the side collision bag portion 93 that has been completed, the vicinity of the chest MB of the occupant M at the time of a side collision can be protected.

  Further, in the shoulder portion bag 92 of the second embodiment, the time for maintaining the internal pressure is made longer than the side collision bag portion 93 from at least the upper side to the rear side around the side collision bag portion 93 when the inflation is completed. A shape holding unit 100 is provided. Therefore, even if the internal pressure of the side collision bag portion 93 decreases during the rollover of the vehicle, which takes a longer time than the time of the side collision of the vehicle VC until the occupant M is restrained after the bag 92 is completely inflated, the internal pressure The shape holding part 100 that maintains the time for maintaining the shoulder bag 92 is maintained in a shape substantially along the vertical direction, so that the head MH, the arm part MA, etc. It can be constrained inside and protected.

  At this time, since the shape holding part 100 is disposed from the upper side to the rear side around the side collision bag part 93, the shape maintained along the substantially vertical direction of the shoulder part bag 92 is Assuming that a part of the side impact bag 93 having a reduced internal pressure is used at least in the inverted L shape in which the horizontal bar 101 and the vertical bar 102 are connected, the apex is the lower end (the lower end of the vertical bar 102). 102a) is provided in a triangular plate shape whose bottom is disposed on the horizontal bar portion 101, and the length in the front-rear direction on the upper end side (horizontal bar portion 101 side) is ensured to cover the window W1. .

  And in the side collision bag part 93 of this structure, since the time which maintains an internal pressure can be shortened compared with the shape holding | maintenance part 100, you may reduce an internal pressure immediately after completion | finish of expansion | swelling. For this reason, if the side collision bag portion 93 in which the time for maintaining the internal pressure is set to be short is used, a side collision of the vehicle VC that needs to protect the chest MB of the occupant M during a short time after the completion of the inflation occurs. The side collision bag portion 93 whose internal pressure is reduced compared to immediately after the completion of the inflation can protect the occupant M's chest MB and the like with good cushioning properties and softly without pressing strongly.

  In addition, when the shape holding part 100 is configured to maintain the internal pressure longer than the side collision bag part 93, in addition to providing the coating layer 100b on the peripheral wall 100a of the bag 100, as a woven fabric to be used, A thread having a high weaving density may be used. Of course, the shape holding unit 100 may be manufactured using a woven fabric having a coating layer and a high weaving density.

  In consideration of measures against gas leakage from the periphery of the projecting portion of the bolt 23b or the lead wire, as shown in FIG. 14, the inflator 104 assembled with the mounting bracket 23 that can be attached to the seat 18A is connected to the side collision bag portion 93. The predetermined gas discharge port 104b is inserted into the shape holding unit 100 side with a sealing property so that the expansion gas G flows into the shape holding unit 100 from the inlet 96. Also good.

  Further, when a shoulder bag is provided with a seat, as shown in FIGS. 15 and 16, the backrest portion 20A of the seat 18A is not provided with a side collision bag portion for protecting the vicinity of the chest MB of the occupant M. Alternatively, the shoulder bag 92 </ b> A including only the shape holding unit 100 may be disposed.

  Furthermore, when mounted on the vehicle VC1 in which the arrangement positions P1 and P2 in the front-rear direction of the seat 18A are largely adjusted like the occupant protection device S3 of the third embodiment shown in FIG. 17, the front side of the pillar portion CP. The shoulder bag 92 stored in the seat 18A disposed in the vehicle interior I near the window W1 and the curtain bag 40 having no storage recess as in the first embodiment may be used. . That is, in the occupant protection device 3 according to the third embodiment, even when the shoulder portion 31 of the seat belt 29 largely moves back and forth due to the large adjustment of the front and rear position of the seat 18A, the shoulder portion 31 is activated during operation. Corresponding to the position of the shoulder portion 31, the shoulder portion bag 92 that has been completely inflated can be disposed at the position on the vehicle outer side O of the upper portion 31a of the shoulder portion 31. Since the curtain bag 40 does not need to be provided with the storage recess 43, it is not necessary to consider interference and a gap with the shoulder bag 92 at the periphery of the storage recess 43.

  On the other hand, when the shoulder bag is stored in the lower edge BL side of the window W1 on the front side of the pillar portion CP as in the occupant protection device S4 of the fourth embodiment shown in FIG. As an alternative, a curtain bag 40A provided with a storage recess 43A capable of storing the shoulder bag 70 may be used. In the fourth embodiment, the positional relationship between the shoulder bag 70 that is not attached to the seat and the curtain bag 40A that is stored on the upper side of the window W1 is constant. Therefore, when the occupant protection device S4 is operated, the shoulder portion bag 70 can be stored so as to be inserted into the storage recess 43A of the curtain bag 40A with high accuracy and with minimal overlap and gaps. The bag 40A and 70 combined so as to form a flat plate with a small gap can prevent the vehicle interior I from protruding and cover the vehicle interior I of the window W1. Of course, the storage recess 43A is mounted on the occupant M by the curtain bag 40A that has been deployed and inflated in consideration of the position adjustment in the longitudinal direction of the seat 18 and the fluctuation range of the physique of the occupant M seated on the seat 18. The size is set so as not to interfere with the upper portion 31a side of the shoulder portion 31 of the seat belt 29, and the size of the bag 70 for the shoulder portion, which has been expanded and inflated, can be stored with a small gap. Yes.

  In the first to fourth embodiments, the case where the shoulder bags 70 and 92 are disposed on the lower side of the window W1 on the side of the front seat of the vehicle VC / VC1 is shown. When the seat belt anchor is disposed in the intermediate pillar portion in the vicinity of the intermediate position in the front-rear direction of the vehicle, the shoulder portion of the present invention is provided below the rear seat window and the intermediate seat window. A bag may be provided. Furthermore, the shoulder portion bag may be accommodated so as to straddle the pillar portion side or from the pillar portion to the lower side of the window.

  However, as a curtain bag that interferes with the shoulder portion of the seat belt and moves the lower edge to the inside of the vehicle, a curtain that covers the inside of the vehicle at least two windows adjacent to the front and rear of the center pillar portion provided with the anchor of the seat belt When the bag interferes with the shoulder portion, the lower edge is greatly moved to the vehicle inner side. Therefore, on the front side of the pillar portion CP provided with the front and rear windows W1 and W2 as in the first and second embodiments. It is desirable to arrange a shoulder bag on the lower side of the window W1 adjacent to the pillar portion CP.

It is the schematic front view which looked at the vehicle mounting state of the passenger protection device of a 1st embodiment concerning the present invention from the car inside. It is a schematic longitudinal cross-sectional view in the state which looked at the vehicle mounting state of the passenger protection device of a 1st embodiment from the front side, and corresponds to the II-II part of Drawing 1. It is a front view which shows the state which expand | deployed the curtain bag used for 1st Embodiment flatly. It is a front view which shows the state which expand | deployed flat the bag for shoulder parts used for 1st Embodiment. It is a schematic front view which shows the state which the passenger | crew protection device of 1st Embodiment act | operated. It is the schematic longitudinal cross-sectional view which looked at the state which the passenger protection device of a 1st embodiment act | operated from the front side, and respond | corresponds to the VI-VI site | part of FIG. It is the schematic front view which looked at the vehicle mounting state of the passenger protection device of a 2nd embodiment from the vehicle inside. It is a figure which shows the accommodation state to the sheet | seat in the bag for shoulder parts of 2nd Embodiment, and is the figure seen from the vehicle outer side of the sheet | seat. It is a schematic cross-sectional view of the IX-IX part of FIG. It is the front view seen from the vehicle inside in the state where the inflator was built in the bag for shoulder parts used in a 2nd embodiment. It is a front view which shows the state which unfolded flat the curtain bag used in 2nd Embodiment. It is a schematic front view which shows the state which the passenger | crew protection device of 2nd Embodiment act | operated. It is the schematic longitudinal cross-sectional view which looked at the state which the passenger protection device of a 2nd embodiment act | operated from the front side, and respond | corresponds to the XIII-XIII site | part of FIG. It is the front view seen from the vehicle inside in the state where the inflator in the bag for shoulder parts of the modification of a 2nd embodiment was built. It is the front view seen from the vehicle inside in the state where the inflator in the bag for shoulder parts of the modification of a 2nd embodiment was built. It is a schematic front view which shows the state which the passenger | crew protection device using the bag for shoulder parts shown in FIG. 15 act | operated. It is a schematic front view which shows before and after the action | operation of the passenger | crew protection apparatus of 3rd Embodiment in order. It is a schematic front view which shows before and after the action | operation of the passenger | crew protection apparatus of 4th Embodiment in order.

Explanation of symbols

18.18A ... sheet,
29 ... Seat belt,
31 ... Shoulder,
35 ... Anchor,
40 · 40A ... curtain bag,
43.43A ... Storage recess,
70, 92, 92A ... shoulder bag,
93 ... Bag part for side collision,
M ... Crew,
MS ... (occupant's) shoulder,
MT ... (occupant's) trunk,
MH ... (occupant's) head,
W1 ... window,
VC / VC1 ... vehicle,
S1, S2, S3, S4 ... Occupant protection devices.

Claims (7)

An inflation gas is introduced into the upper side of the window so as to cover the inner side of the front window adjacent to the pillar part including the pillar part in which the anchor for locking the seat belt is disposed. An occupant protection device comprising a curtain bag that expands and inflates downward from a folded storage state,
Inflation gas flows in so as to cover the vehicle interior side of the window on the vehicle exterior side of the shoulder portion in the vicinity of the shoulder portion extending in the vehicle interior direction diagonally forward and downward so as to go from the anchor in the seat belt toward the shoulder portion of the occupant An occupant protection device comprising a shoulder bag that expands and inflates from the periphery of the window.   The occupant protection device according to claim 1, wherein the shoulder bag is housed on a lower side of the window and extends upward from a housing part when deployed and inflated.   The occupant protection device according to claim 2, wherein the shoulder bag is housed in a lower edge of the window.   The occupant protection device according to claim 1 or 2, wherein the shoulder bag is housed in a seat disposed inside the vehicle near the window.   2. The storage bag according to claim 1 or 2, wherein the curtain bag is configured to have a storage recess that can store the shoulder bag so as to extend upward from a lower edge when the inflation is completed. The occupant protection device according to 2.   5. The occupant protection device according to claim 4, wherein the shoulder bag includes a side collision bag portion that expands and expands in a protective manner in the vicinity of an occupant's chest seated on the seat. .   The shoulder holding bag is provided with a shape holding portion in which the time for maintaining the internal pressure is longer than at least the side collision bag portion around the side collision bag portion at the time of expansion and expansion completion. The occupant protection device according to claim 6, wherein the occupant protection device is configured.

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