JP2009166547A - Vehicle side structure - Google Patents

Abstract

An object of the present invention is to optimize the timing of restraining the head of an occupant by a head protection airbag bag.
When a head protection airbag bag body 16 in a head protection airbag device 10 is deployed, a projecting member 12 (area) that expands the deployable region of the head protection airbag bag body 16 to the outside of the vehicle. Enlarging means) is provided. When the side cover is deformed and the head protection airbag bag 16 is deployed in a curtain shape between the vehicle side portion and the occupant 24, the protruding member 12 (region expanding means) interferes with the door glass 22. As a result, the door glass 22 is crushed and removed with the interference point with the protruding member 12 as a starting point, so that the deployable region of the head protection airbag bag body is expanded outside the vehicle.
[Selection] Figure 4

Description

  The present invention relates to a vehicle side part structure.

A side airbag device that deploys a side airbag from a door toward a passenger, at least to a region where the occupant's waist is located, and pushes the passenger away in a direction away from the side wall of a vehicle body in a side collision of the vehicle. It is disclosed (see Patent Document 1).
JP 2003-220918 A JP 2005-96557 A JP 2001-163054 A

  By the way, as a means for protecting the occupant's head in a side collision or the like, a curtain shield airbag device that can deploy a head protection airbag bag body in a curtain shape between the vehicle side and the occupant's head is generally used. It is provided. It is desirable that the occupant's head is restrained by the head protection airbag bag body at an appropriate timing.

  However, in the conventional example described in Patent Document 1 described above, protection of the occupant's head at the time of a side collision or the like is not particularly considered, and no description is given of a curtain shield airbag device for protecting the head. It has not been.

  An object of the present invention is to optimize the restraint timing of the occupant's head by the head protection airbag bag in consideration of the above facts.

  According to the first aspect of the present invention, the head protection airbag bag body arranged in a folded state along the roof side rail receives a gas supply from the inflator and has a curtain shape between the vehicle side portion and the occupant. A head protecting airbag device configured to be deployable; and a region enlarging means for enlarging a deployable region of the head protecting airbag bag body to the outside of the vehicle when the head protecting airbag bag body is deployed. It is characterized by having.

  In the vehicle side part structure according to claim 1, the head protection airbag bag body in the head protection airbag device is supplied in a curtain shape between the vehicle side part and the occupant upon receipt of gas supplied from the inflator. To do. At this time, the region enlarging means expands the deployable region of the head protection airbag bag body to the outside of the vehicle. Thereby, the restraint timing of the passenger | crew's head by a head protection airbag bag body can be optimized.

  According to a second aspect of the present invention, in the vehicle side part structure according to the first aspect, as the area enlarging means, the side door overlaps with the door glass in the door thickness direction regardless of the opening degree of the door glass. The door glass is arranged from the vehicle inner side toward the door glass, and when the side door is deformed and the head protection airbag bag body is deployed, the door glass is interfered with the door glass. It has a projecting member that can be removed.

  In the vehicle side part structure according to claim 2, when the side door is deformed and the head protection airbag bag body is deployed, the projecting member as the area expanding means is the door glass regardless of the opening degree of the door glass. Interfere with. Thereby, the deployable region of the head protection airbag bag body is expanded to the outside of the vehicle by the door glass being crushed and removed starting from the interference point with the protruding member. Thus, in the vehicle side part structure according to the second aspect, the restraint timing of the head of the occupant by the head protection airbag bag body can be optimized by removing the door glass by the protruding member.

  According to a third aspect of the present invention, in the vehicle side part structure according to the second aspect, the protruding member is provided in a belt line portion of a door inner panel that is a vehicle inner member of the side door, and the protruding member A lever member having a through hole corresponding to the protruding member is provided at a position facing the protruding member and the door thickness direction. When the side door is deformed, the lever member is pushed to the inside of the vehicle, so that the protruding member protrudes outward from the through hole in the thickness direction of the door and interferes with the door glass.

  In the vehicle side part structure according to the third aspect, in a normal state, a lever member is interposed between the door glass and the protruding member, and interference between the door glass and the protruding member is suppressed. Further, when the lever member is pushed inward of the vehicle as the side door is deformed, the protruding member protrudes outward in the door thickness direction from the through hole provided in the lever member and interferes with the door glass. As a result, the door glass is crushed and removed, so that the deployable region of the head protection airbag bag body is expanded outside the vehicle. Thus, in the vehicle side part structure according to the third aspect, the door glass is removed by the projecting member when the head protection airbag bag body is deployed while suppressing the interference between the door glass and the projecting member in the normal state. be able to.

  According to a fourth aspect of the present invention, in the vehicle side part structure according to the first aspect, a frame-shaped door frame configured to form an upper portion of the side door and hold the door glass is provided outside the vehicle as the area expanding means. It is characterized by having an extrudable door frame extrusion mechanism.

  In the vehicle side part structure according to claim 4, when the head protection airbag bag body is deployed in a curtain shape between the vehicle side part and the occupant, the door frame is pushed out of the vehicle by the door frame pushing mechanism. . Thereby, the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle, and the restraint timing of the occupant's head by the head protection airbag bag body can be optimized.

  According to a fifth aspect of the present invention, in the vehicle side portion structure according to the fourth aspect, as the door frame push-out mechanism, an airbag bag is provided in a folded state at a door opening portion of the vehicle side portion corresponding to the side door. The airbag body is inflated and deployed between the door frame and the vehicle side by receiving gas supply from the inflator in conjunction with the head protection airbag device, It has an air bag device which can extrude the door frame to the outside of the vehicle.

  In the vehicle side part structure according to claim 5, the airbag bag body arranged in a folded state at the door opening of the vehicle side part corresponding to the side door is interlocked with the head protection airbag device, By receiving supply of gas from the inflator of the head protecting airbag device and inflating and deploying between the door frame and the vehicle side portion, the door frame is pushed out of the vehicle. As a result, the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle, and the restraint timing of the occupant's head by the head protection airbag bag body can be optimized.

  According to a sixth aspect of the present invention, in the vehicle side part structure according to the fifth aspect, the pushing direction holding means capable of holding the pushing direction so that the pushing direction of the door frame by the airbag bag body is the vehicle outer side. It is characterized by having.

  In the vehicle side part structure according to claim 6, when the airbag bag body disposed in a folded state is deployed at the door opening part of the vehicle side part corresponding to the side door, the push direction holding means causes the air bag body to expand. The door frame is held such that the door frame is pushed out of the vehicle. For this reason, the door frame can be stably pushed out of the vehicle, and the deployable region of the head protection airbag bag can be expanded outside the vehicle.

  According to a seventh aspect of the present invention, in the vehicle side part structure according to the sixth aspect, as the push-out direction holding means, a pin disposed on the airbag bag body side and disposed toward the door frame, and a pin Correspondingly, it is characterized by having an insertion portion provided on the door frame and into which the pin is inserted when the airbag bag body is deployed.

  In the vehicle side part structure of Claim 7, it has a pin and an insertion part as a pushing direction holding means, and the airbag arrange | positioned in the folding state by the door opening part of the vehicle side part corresponding to a side door When the bag body is deployed, the pin on the airbag bag body side is inserted into the insertion portion provided on the door frame. By engaging the pin and the insertion portion, the door frame is held so that the pushing direction of the door frame is on the vehicle outer side. For this reason, the door frame can be stably pushed out of the vehicle, and the deployable region of the head protection airbag bag can be expanded outside the vehicle.

  According to an eighth aspect of the present invention, in the vehicle side part structure according to the sixth aspect, the push-out direction holding means covers the airbag bag body and can extend to the outside of the vehicle when the airbag bag body is deployed. It is characterized by having.

  In the vehicle side part structure according to claim 8, the airbag bag body disposed in a folded state at the door opening part of the vehicle side part corresponding to the side door is covered with a case as a pushing direction holding means. Therefore, the appearance at the normal time is good. Further, this case extends to the outside of the vehicle when the airbag bag body is deployed. Thereby, it hold | maintains so that the extrusion direction of the door frame by expansion | deployment of an airbag bag body may turn into a vehicle outer side. For this reason, the door frame can be stably pushed out of the vehicle, and the deployable region of the head protection airbag bag can be expanded outside the vehicle.

  According to a ninth aspect of the present invention, in the vehicle side part structure according to the eighth aspect, the case is provided with guide means for guiding the case so as to extend to the outside of the vehicle when the airbag bag body is deployed. It is characterized by being.

  In the vehicle side structure according to the ninth aspect, the guide means is provided in the case covering the airbag bag body. When the airbag bag body is deployed, the case is guided by the guide means to the outside of the vehicle. Elongate. As a result, the door frame is pushed out by the airbag bag body being deployed so that the door frame is pushed outward. For this reason, the door frame can be pushed out more stably to the outside of the vehicle, and the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle.

  According to a tenth aspect of the present invention, in the vehicle side part structure according to the fourth aspect, as the door frame push-out mechanism, the inside of the side door extends downward from the lower end portion of the door frame, and the side door is deformed. It has a door frame extension member that can push the upper part of the door frame to the outside of the vehicle by rotationally displacing to the inside of the vehicle with the belt line portion of the side door as a fulcrum.

  In the vehicle side part structure according to the tenth aspect, when the side door is deformed, the door frame extension member as the door frame push-out mechanism is rotationally displaced inward of the vehicle with the belt line portion of the side door as a fulcrum. Since the door frame extending member is provided at the lower end portion of the door frame, when the door frame extending member is rotationally displaced to the inside of the vehicle, the upper portion of the door frame is conversely rotationally displaced to the outside of the vehicle. That is, the upper part of the door frame is pushed out of the vehicle. Thereby, the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle, and the restraint timing of the occupant's head by the head protection airbag bag body can be optimized.

  According to an eleventh aspect of the present invention, in the vehicle side part structure according to the tenth aspect, the door frame extension member is connected to an impact beam provided on the side door.

  In the vehicle side part structure according to claim 11, since the door frame extending member is connected to the impact beam provided on the side door, the load input to the impact beam can be efficiently received when the side door is deformed. It can be transmitted to the door frame extension member. For this reason, the upper part of the door frame can be pushed out to the outside of the vehicle more efficiently, and the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle.

  As described above, according to the vehicle side part structure according to claim 1 of the present invention, it is possible to optimize the restraint timing of the occupant's head by the head protection airbag bag body. An effect is obtained.

  According to the vehicle side part structure according to claim 2, it is excellent that the restraint timing of the head of the occupant by the head protection airbag bag body can be optimized by removing the door glass by the protruding member. Effect.

  According to the vehicle side part structure of the third aspect, the door glass can be removed by the projecting member when the head protection airbag bag body is deployed while suppressing interference between the door glass and the projecting member in a normal state. The excellent effect of being able to be obtained is obtained.

  According to the vehicle side part structure of the fourth aspect, the deployable region of the head protection airbag bag body is expanded to the outside of the vehicle, and the restraining timing of the occupant's head by the head protection airbag bag body is set. The excellent effect that it can be optimized is obtained.

  According to the vehicle side part structure of the fifth aspect, the deployable region of the head protection airbag bag body is placed outside the vehicle by the airbag device provided at the door opening of the vehicle side part corresponding to the side door. It is possible to obtain an excellent effect that the timing of restraining the head of the occupant by the head protection airbag bag can be optimized by enlarging.

  According to the vehicle side part structure of the sixth aspect, an excellent effect is obtained that the door frame can be stably pushed out and the deployable region of the head protection airbag bag body can be expanded outside the vehicle. It is done.

  According to the vehicle side part structure of claim 7, the door frame can be stably pushed out to the outside of the vehicle, and the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle. An effect is obtained.

  According to the vehicle side part structure of claim 8, the door frame can be stably pushed out to the outside of the vehicle, and the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle. An effect is obtained.

  According to the vehicle side part structure according to claim 9, the door frame can be more stably pushed out to the outside of the vehicle, and the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle. An effect is obtained.

  According to the vehicle side part structure of the tenth aspect, an excellent effect that it can be obtained is obtained.

  According to the vehicle side part structure of the eleventh aspect, the upper part of the door frame can be pushed out to the outside of the vehicle more efficiently, and the deployable region of the head protection airbag bag body can be expanded to the outside of the vehicle. An excellent effect is obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
In FIG. 1, the vehicle side part structure S1 according to the present embodiment includes a head protecting airbag device 10 and a protruding member 12 as an example of a region expanding means.

  In the head protection airbag device 10, the head protection airbag bag body 16 disposed in a folded state along the roof side rail 14 receives the supply of gas from the inflator 18 and is a side that is an example of a vehicle side portion. Between the door 20 and the passenger | crew 24 seated on the vehicle seat 23, it is comprised so that expansion | deployment in the shape of a curtain is possible.

  Here, the roof side rail 14 is a vehicle skeleton member that extends in the vehicle front-rear direction on both sides in the vehicle width direction of the upper part of the vehicle, and is configured by joining an inner panel 26 and an outer panel 28. Specifically, the roof side rail 14 is configured by joining the inner panel 26 and the outer panel 28 at, for example, a joint portion 30 on the inner side in the vehicle width direction and a joint portion 32 (see also FIG. 4) on the outer side in the vehicle width direction. ing. A reinforcement 34 is sandwiched between the inner panel 26 and the outer panel 28 and joined together at joints 30 and 32.

  Between the roof side rails 14 on both sides, a roof panel 36 as an exterior member is disposed. A roof reinforcement 38, which is a reinforcing member, is disposed below the vehicle on the roof panel 36. The end portions in the vehicle width direction of the roof panel 36 and the roof reinforcement 38 are joined together at a joint portion 30 on the inside of the roof side rail 14 in the vehicle width direction. The joint portion 30 is located in a so-called Mohawk groove portion. The roof reinforcement 38 and the roof side rail 14 are covered from the vehicle interior side by a roof head lining 40 that is an interior material.

  The joint 32 on the outer side in the vehicle width direction of the roof side rail 14 is located at the door opening 42 on the side of the vehicle, and is close to the door frame 44 of the side door 20 when the side door 20 is closed. For this reason, a weather strip 46 for ensuring watertightness with the door frame 44 is disposed at the joint portion 32. The weather strip 46 is normally engaged with a terminal portion of the roof head lining 40 on the outer side in the vehicle width direction. This locked state is released when the inflation pressure of the head protection airbag bag body 16 acts on the roof head lining 40. The head protection airbag bag body 16 is inflated to the lower side of the vehicle when the end portion of the roof head lining 40 is detached from the weather strip 46, and is curtained between the side door 20 as an example of the vehicle side portion and the occupant 24. It has come to expand to.

  The head protection airbag body 16 is arranged in a folded state along the roof side rail 14 from, for example, a pillar (not shown) closest to the vehicle front side to a pillar (not shown) closest to the vehicle rear side. It is installed. An inflator 18 that supplies inflation gas to the head protection airbag bag body 16 is fixed to, for example, an inner panel 26 of the roof side rail 14. The inflator 18 is configured to operate in response to an operating current from an airbag ECU (not shown). The airbag ECU is based on signals from, for example, a side collision sensor and a rollover sensor (both not shown). When a side collision or rollover is determined, an operating current is supplied to the inflator 18.

  As the inflator 18, a gas generating agent-encapsulated type or a high-pressure gas-encapsulated type may be used. A configuration example of the inflator 18 will be briefly described. In the case of the former type, a bottomed cylindrical housing in which a plurality of gas jets are formed on the peripheral surface, and by being disposed in the housing and burning. A gas generating agent that generates gas, a filter that removes debris after combustion of the gas generating agent, and an electric ignition ignition device that is attached to an end of the opening side of the housing and burns the gas generating agent. It is configured to include.

  On the other hand, in the case of the latter type, a bottomed cylindrical housing, a pressure partition disposed in the housing, and argon, helium, etc. sealed in a chamber defined by the pressure partition and the housing. A mixed gas, a moving member that is movably disposed in the vicinity of the pressure partition, and that breaks the pressure partition by moving; an electric ignition type ignition device that is attached to an end of the housing on the opening side and moves the moving member; , Including.

  Regardless of which type of inflator is used, the ignition device is operated based on a signal from a side collision sensor or a rollover sensor.

  Next, in FIG. 1 and FIG. 2, the projecting member 12 expands the region that expands the deployable region of the head protection airbag bag body 16 to the outside of the vehicle when the head protection airbag bag body 16 is deployed. It is an example of a means. The protruding member 12 is located on the side door 20 so as to overlap with the door glass 22 in the door thickness direction from the vehicle inner side of the door glass 22 toward the door glass 22 regardless of the opening degree of the door glass 22. When the side door 20 is deformed and the head protection airbag bag body 16 is deployed, the door glass 22 interferes with the door glass 22 and can be removed.

  Specifically, the projecting member 12 is, for example, a bolt, and is configured by processing the tip 12A into a tapered shape. The belt line portion of the door inner panel 48 that is a vehicle inner member of the side door 20 is used. 48A. As shown in FIG. 2, the belt line portion 48 </ b> A is formed, for example, in a trapezoidal cross section that protrudes toward the inside of the vehicle, and extends above the door inner panel 48 in the vehicle front-rear direction.

  The protruding member 12 is fixed to the beltline portion 48A by, for example, welding, but the fixing means is not limited to welding, for example, a nut (not shown) is welded to the outer surface of the beltline portion 48A. The protruding member 12 may be inserted from the inner surface side of the belt line portion 48A and fastened and fixed to the nut.

  Here, the configuration of the side door 20 will be briefly described. The side door 20 is configured by joining a door outer panel 50 positioned outside the vehicle and a door inner panel 48 positioned inside the vehicle. The inner surface of the door inner panel 48 in the vehicle width direction is covered with a door trim 54 having an armrest 52, for example.

  1 and 4, a frame-like door frame 44 configured to hold the door glass 22 is provided on the upper side of the side door 20. A weather strip 56 is provided on the upper edge of the door frame 44 to ensure water tightness between the door frame 44 and the vehicle side door opening 42 when the side door 20 is closed. The door glass 22 is guided by the door frame 44 and is configured to be able to enter and exit in the vehicle vertical direction between the door inner panel 48 and the door outer panel 50 in the side door 20. Note that tempered glass is used for the door glass 22.

  In FIG. 2, the side door 20 extends between the protruding member 12 and the door glass 22, extends downward in the side door 20, and is positioned at a position facing the protruding member 12 in the door thickness direction. A lever member 58 in which a through hole 58A corresponding to 12 is formed is provided. The upper end 58B of the lever member 58 is joined to the upper edge 48B of the door inner panel 48, for example. The through hole 58A is formed in a circular shape having a larger diameter than the outer diameter of the protruding member 12, for example.

  Of the projecting member 12, between the through hole 58A and the upper end 58B, there is provided, for example, a trapezoidal hinge portion 58C that is convex toward the inside of the vehicle. The lever member 58 is rotated about the hinge portion 58C by being pushed toward the inside of the vehicle as the side door 20 is deformed. As a result, the protruding member 12 extends from the through hole 58A in the door thickness direction. It protrudes outside and is configured to interfere with the door glass 22. The hinge portion 58C formed to be bent in a trapezoidal cross section is provided when the lever member 58 is pushed to the inside of the vehicle as compared to the case where the lever member 58 has a flat plate shape as a whole. This is to stably rotate around the upper side of 58A.

  The belt line portion 48 </ b> A to which the protruding member 12 is fixed is formed in a trapezoidal cross section that protrudes inward in the door thickness direction. The protruding member 12 is formed from the outer surface of the general portion 48 </ b> G of the door inner panel 48. Also, it extends beyond the thickness of the general portion 58G of the lever member 58 outward in the door thickness direction. As shown in FIG. 3, when the lever member 58 is pushed inside the vehicle and the general portion 58G of the lever member 58 comes into contact with the general portion 48G of the door inner panel 48, the projection member 12 This is because the front end 12A protrudes outward from the through hole 58A in the door thickness direction. In the normal state, the general portion 58G of the lever member 58 is in a state of being separated from the general portion 48G of the door inner panel 48, and the tip 12A of the protruding member 12 extends from the through hole 58A of the lever member 58 in the door thickness direction. It does not protrude outward.

  As shown in FIG. 1, a rocker 60 is disposed on the vehicle lower side of the side door 20 in the closed state. The rocker 60 is a skeleton member that extends in the vehicle front-rear direction at the lower part of the vehicle side portion. For example, the rocker outer panel 62 on the vehicle width direction outer side and the rocker inner panel 64 on the vehicle width direction inner side are joined to form a closed cross section. ing.

  The shape of the through hole 58A is not limited to a circle, and may be a polygon, for example. The diameter of the through hole 58A does not need to be larger than the outer diameter of the protruding member 12, and when the lever member 58 is pushed to the inside of the vehicle as the side door 20 is deformed, the protruding member 12 is inserted into the through hole. What is necessary is just to become the structure which can protrude from 58A to the door thickness direction outer side. Therefore, for example, the through hole 58A is made smaller in diameter than the outer diameter of the protruding member 12, and the edge of the through hole 58A is made weak so that the lever member 58 is pushed to the inside of the vehicle and the protruding member 12 penetrates. When inserted into the hole 58A, the protruding member 12 may be configured to push the edge of the through hole 58A.

  Further, in the illustrated example, the lower end 58D of the lever member 58 is positioned at a substantially central portion of the height of the side door 20 excluding the door frame 44. However, the present invention is not limited to this. May be located. From the viewpoint of efficiently transmitting the side impact load F (FIG. 3) to the lever member 58, the lower end 58 </ b> D of the lever member 58 is disposed inside the vehicle of an impact beam (not shown) provided on the side door 20. It is desirable.

  Further, the tip 12A of the protruding member 12 is desirably as sharp as possible so that the door glass 22 can be efficiently broken. The protruding member 12 is not limited to a bolt, and may be a pin, for example. The number of the protruding members 12 is not limited to one, and a plurality of protruding members 12 may be provided on one side door 20.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 3, in the vehicle side part structure S <b> 1 according to the present embodiment, for example, when a side collision load F is input to the side door 20 due to a side collision, and the side door 20 is deformed to the vehicle inner side by the side collision load F, 12, the door glass 22 is crushed and removed. Specifically, when the door outer panel 50 is deformed inside the vehicle by the side impact load F, the side impact load F is transmitted from the door outer panel 50 to the lever member 58. The lever member 58 rotates around the hinge portion 58C by the side impact load F and is pushed toward the inside of the vehicle. As a result, the protruding member 12 is relatively inserted into the through hole 58A of the lever member 58, and as a result, the protruding member 12 protrudes from the through hole 58A to the door thickness direction outer side (vehicle width direction outer side). It becomes.

  At this time, the door glass 22 is pushed into the inside of the vehicle along with the deformation of the door outer panel 50 and interferes with the protruding member 12. Since the tempered glass is used for the door glass 22, stress concentrates on the interference point with the protruding member 12, and if the interference point breaks, the breakage is instantaneously applied to the entire door glass 22. Propagate to. As a result, the door glass 22 is crushed starting from the point of interference with the protruding member 12, and is removed from the inside of the door frame 44 as shown in FIG.

  On the other hand, in FIG. 4, in the vehicle side part structure S1 according to the present embodiment, for example, when a side collision or rollover is detected by a side collision sensor or rollover sensor (not shown), an operating current is supplied from the airbag ECU to the inflator 18. Washed away. The inflator 18 operates in response to the operating current, and ejects a large amount of gas. When the gas ejected from the inflator 18 is supplied to the head protection airbag bag body 16, the head protection airbag bag body 16 starts to inflate and deploy.

  Then, the terminal portion of the roof head lining 40 is detached from the weather strip 46 by the inflation pressure of the head protection airbag bag body 16 and opens to the vehicle interior side. The head protection airbag bag body 16 is inflated downward from the gap between the roof head lining 40 and the weather strip 46, which is pushed and spread by the head protection airbag bag body 16, and the vehicle side portion and the occupant 24 are inflated. It expands in the form of a curtain.

  At this time, as described above, since the door glass 22 in the side door 20 is crushed by the protruding member 12 and removed from the frame of the door frame 44, the deployable region of the head protection airbag bag body 16 is The vehicle is expanding to the outside. Therefore, for example, when the head 24H of the occupant 24 comes into contact with the head protection airbag bag body 16, that is, in the initial stage of restraining the head 24H of the occupant 24 by the head protection airbag bag body 16, the head The protective airbag bag body 16 can be displaced to the outside of the vehicle. Thereby, the timing at which the load from the head protection airbag bag body 16 to the head 24H of the occupant 24 rises is delayed, and the restraint timing of the head 24H of the occupant 24 by the head protection airbag bag body 16 is optimized. be able to.

  The head protection airbag bag body 16 is connected to, for example, a pillar (not shown) on the most front side of the vehicle and a pillar on the most rear side of the vehicle, for example, by a non-extensible strap (not shown). When the head protection airbag bag body 16 is displaced to the outside of the vehicle to some extent, the tension of the strap increases, so that further displacement of the head protection airbag bag body 16 is suppressed. Thereby, the load from the head protection airbag bag body 16 to the head 24H of the occupant 24 rises.

[Second Embodiment]
5, the vehicle side part structure S2 according to the present embodiment expands the deployable region of the head protection airbag bag body 16 to the outside of the vehicle when the head protection airbag bag body 16 is deployed. A door frame pushing mechanism 70 is provided as an area expanding means. In FIG. 6, an airbag device 72 is provided as the door frame pushing mechanism 70.

  The airbag device 72 has an airbag bag body 74 disposed in a folded state at the door opening 42 on the side of the vehicle corresponding to the side door 20, and the airbag bag body 74 is a head protection airbag device. 10 is supplied with gas from the inflator 18 and is inflated and deployed between the door frame 44 and the outer panel 28 of the roof side rail 14 as an example of a side portion of the vehicle. It is configured to be extrudable.

  The airbag device 72 includes a pin 76, a plug-in portion 78, and a case 80 as extrusion direction holding means capable of holding the extrusion direction so that the extrusion direction of the door frame 44 by the airbag bag body 74 is on the vehicle outer side. And have.

  The pin 76 is disposed on the airbag bag body 74 side and is disposed toward the door frame 44. Specifically, as shown in FIG. 7, the pin 76 is connected in series in the vehicle longitudinal direction to the vehicle outer surface of a rectangular load receiving plate 82 that receives the inflation pressure when the airbag bag body 74 is inflated and deployed. For example, three are erected. The pin 76 and the load receiving plate 82 are configured as, for example, an integrally molded product of synthetic resin. As shown in FIG. 11A, the load receiving plate 82 is housed in, for example, a small case 84 described later in the case 80.

  In FIG. 6 and FIG. 11 (A), the insertion part 78 is a part provided in the door frame 44 corresponding to the pin 76, and the pin 76 is inserted when the airbag bag body 74 is deployed. Specifically, the insertion portion 78 is configured as a through-hole provided in the vertical wall portion 44 </ b> A on the inner side in the vehicle width direction of the door frame 44. As shown in FIG. 9, the insertion portion 78 is provided at three places corresponding to the number of the pins 76 on the axis of each pin 76, for example. Further, the diameter of the insertion portion 78 is set larger than the outer diameter of the pin 76 so that the pin 76 can be smoothly inserted into the insertion portion 78.

  6, FIG. 7, FIG. 11 (A), and FIG. 11 (B), the case 80 covers the airbag bag body 74, and is configured to be extended to the outside of the vehicle when the airbag bag body 74 is deployed. Yes. The case 80 has a nested structure including, for example, a small case 84, a middle case 86 that covers the door inner panel 48, and a large case 88 that covers the middle case 86. Each case is, for example, a synthetic resin molded product.

  The small case 84 is fixed to the outer panel 28 of the roof side rail 14 located at the door opening 42 so that the longitudinal direction of the vehicle is the longitudinal direction. Supplementally, the small case 84 is fixed to the outer panel 28 of the roof side rail 14 by providing a gap in consideration of the overstroke when the side door 20 is closed between the case 80 and the vertical wall portion 44A of the door frame 44. Has been. The small case 84 includes a lateral wall portion 84S fixed to the outer panel 28 of the roof side rail 14, and an upper wall portion 84U and a lower wall portion 84D (FIG. 11) extending outward from the upper and lower edges of the lateral wall portion 84S, respectively. (See (B)) and a front wall portion 84F and a rear wall portion 84R extending from the front edge and the rear edge of the lateral wall portion 84S to the vehicle outer side, respectively, and open to the vehicle outer side. About the small case 84, the vehicle front-back direction dimension is set larger than the vehicle up-down direction dimension. Thereby, the vehicle front-rear direction is the longitudinal direction of the small case 84.

  As shown in FIG. 11A, in a normal time, the airbag bag body 74 is folded and stored in the small case 84, and a load receiving plate 82 is disposed outside the airbag bag body 74 in the vehicle. ing. In FIG. 7, a chamfered portion 84 </ b> A for handling the gas supply pipe 92 connected to the airbag bag body 74 is formed in the lower corner portion inside the vehicle of the small case 84. The chamfered portion 84A is formed with a through hole 84B through which the gas supply pipe 92 is passed. Note that the lower corners on the vehicle inner side of the middle case 86 and the large case 88 are also chamfered corresponding to the chamfered portions 84A.

  The middle case 86 is configured so as to surround the small case 84 from the vehicle up-down direction and the vehicle front-rear direction, for example. Specifically, as shown in FIG. 7, the middle case 86 is configured to be slightly larger than the small case 84, and includes an upper wall portion 86U, a lower wall portion 86D, a front wall portion 86F, and a rear wall portion 86F. It is comprised in the cylinder shape which has wall part 86R, and is opened on the both sides of the vehicle width direction. As shown in FIG. 11A, the vehicle case direction dimension of the middle case 86 is equivalent to that of the small case 84.

  The large case 88 is configured so that, for example, the middle case 86 can be surrounded from the vehicle vertical direction, the vehicle longitudinal direction, and the vehicle width direction outside. Specifically, as shown in FIG. 7, the large case 88 is configured to be slightly larger than the middle case 86, and includes an upper wall portion 88U, a lower wall portion 88D, a front wall portion 88F, and a rear wall portion 88F. It is comprised in the box shape which has the wall part 88R and the horizontal wall part 88S which connects the vehicle outer side edge of each wall part, and is opened inside the vehicle. As shown in FIG. 11A, the vehicle width direction dimension of the large case 88 is set slightly larger than the middle case 86 in consideration of the thickness of the lateral wall portion 88S and the pin 76.

  As shown in FIG. 6, FIG. 7, and FIG. 11A, a thin wall portion 88 </ b> T is provided in a portion corresponding to each pin 76 in the lateral wall portion 88 </ b> S of the large case 88. As shown in FIG. 11B, the thin portion 88T is pierced by each pin 76 when the load receiving plate 82 is pressed to the outside of the vehicle by the inflation pressure of the airbag bag body 74. ing. Thereby, each pin 76 protrudes to the vehicle outer side of the horizontal wall portion 88 </ b> S and is inserted into the insertion portion 78 of the door frame 44.

  The case 80 can be extended by sliding the middle case 86 along the small case 84 and sliding the large case 88 along the middle case 86. The case 80 is provided with guide means for guiding the case 80 so as to extend to the outside of the vehicle. In FIG. 7, this guide means is, for example, a guide groove provided in the small case 84, the middle case 86, and the large case 88, or a guide protrusion guided by the guide groove.

  Here, these guide grooves and guide protrusions will be described in detail. In the small case 84, a guide groove 84C extending in the vehicle width direction, for example, is provided in the vehicle longitudinal direction central portion of the upper wall portion 84U. The guide groove 84C terminates immediately before reaching the vehicle outer end portion of the upper wall portion 84U, and the termination portion serves as a stopper portion 84E. In the upper wall portion 84U, guide grooves 84G that extend in the vehicle width direction and open at both ends in the vehicle width direction of the upper wall portion 84U are provided on both sides of the guide groove 84C in the vehicle front-rear direction.

  On the other hand, a guide groove 84H that extends in the vehicle width direction and opens at both ends in the vehicle width direction of the lower wall portion 84D is provided in the vehicle longitudinal direction central portion of the lower wall portion 84D. In the lower wall portion 84D, guide grooves 84J extending in the vehicle width direction are provided on both sides of the guide groove 84H in the vehicle front-rear direction. As shown in FIG. 12A, the guide groove 84J terminates immediately before reaching the vehicle outer end portion of the lower wall portion 84D, and the end portion is a stopper portion 84K.

  Next, in the middle case 86, a claw-like guide projection 86C that enters the guide groove 84C of the small case 84 and is guided by the guide groove 84C is provided at the center in the vehicle longitudinal direction on the lower surface of the upper wall portion 86U. ing. Further, on the both sides in the vehicle front-rear direction of the guide projection 86C on the lower surface of the upper wall portion 86U, guide projections 86G that enter the guide groove 84G of the small case 84 and are guided by the guide groove 84G are provided.

  On the other hand, a guide protrusion 86H that enters the guide groove 84H of the small case 84 and is guided by the guide groove 84H is provided at the center in the vehicle longitudinal direction on the upper surface of the lower wall portion 86D. Further, claw-like guide protrusions 86J that enter the guide grooves 84J of the small case 84 and are guided by the guide grooves 84J are respectively provided on both sides in the vehicle front-rear direction of the upper surface of the lower wall portion 86D. Yes.

  The guide projection 86G of the middle case 86 is formed in a U-shaped cross section, and the upper surface side is configured as a guide groove 86A. As shown in FIG. 12A, the guide groove 86A terminates immediately before reaching the vehicle outer end portion of the upper wall portion 86U, and the end portion is a stopper portion 86E. The guide protrusion 86H of the middle case 86 is also formed in a U-shaped cross section, and the lower surface side is configured as a guide groove 86B. As shown in FIG. 11 (A), the guide groove 86B terminates immediately before reaching the vehicle outer end portion of the lower wall portion 86D, and the end portion is a stopper portion 86K.

  Next, claw-like guide projections 88A are provided on the lower surface of the upper wall portion 88U of the large case 88 so as to enter the two guide grooves 86A of the middle case 86 and to be guided by the guide grooves 86A. A claw-like guide projection 88B that enters the guide groove 86B of the middle case 86 and is guided by the guide groove 86B is provided at the center of the upper surface of the lower wall portion 88D of the large case 88 in the vehicle longitudinal direction.

  As shown in FIG. 11B, when the case 80 expands due to the inflation pressure of the airbag bag body 74, the guide protrusion 86C of the middle case 86 contacts the stopper portion 84E of the small case 84, and the large case The 88 guide protrusions 88 </ b> B come into contact with the stopper portion 86 </ b> K of the middle case 86. Also, as shown in FIG. 12B, when the case 80 is extended due to the inflation pressure of the airbag bag body 74, the guide protrusion 86J of the middle case 86 abuts against the stopper portion 84K of the small case 84, The guide protrusion 88A of the large case 88 is in contact with the stopper portion 86E of the middle case 86. Thereby, when the airbag bag body 74 is inflated and deployed, the small case 84, the middle case 86, and the large case 88 are prevented from separating from each other.

  Next, the piping of the gas supply pipe 92 for supplying gas from the inflator 18 to the airbag bag body 74 will be described with reference to FIGS. 6 and 8 to 10. The gas supply pipe 92 is branched from a gas supply pipe 90 that connects the inflator 18 and the head protection airbag bag body 16. As shown in FIG. 6, the inflator 18 is disposed on the inside of the vehicle on the roof side rail 14, and the airbag bag body 74 is disposed on the outside of the vehicle on the roof side rail 14. Therefore, the gas supply pipe 92 is connected to the roof. It is necessary to guide the side rail 14 from the vehicle inner side to the vehicle outer side.

  As shown in FIGS. 8 and 10A, in the present embodiment, a notch 94 is provided in a part of the joint portion 32 on the outer side in the vehicle width direction of the roof side rail 14, and the notch 94 is waterproofed. Therefore, for example, a rubber grommet 96 is fitted. As shown in FIG. 10B, the grommet 96 is provided with a through hole 96 </ b> A, and the gas supply pipe 92 is passed through the through hole 96 </ b> A in the grommet 96. Thereby, the gas supply pipe 92 is led from the vehicle inner side of the roof side rail 14 to the vehicle outer side. As shown in FIG. 6, the weather strip 46 is attached to the joint portion 32 with the grommet 96 sandwiched therebetween. The shape of the grommet 96 is not limited to the illustrated example.

  As shown in FIG. 5, in the side door 20, the belt line portion 48 </ b> A of the door inner panel 48 is reinforced by a belt line reinforcement 98. Since other parts are the same as those in the first embodiment, the same parts are denoted by the same reference numerals in the drawings, and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 6, in the vehicle side part structure S <b> 2 according to the present embodiment, an airbag device 72 as a door frame push-out mechanism 70 is provided in the door opening 42 on the vehicle side part. In the airbag device 72, the large case 88 is located on the outermost side of the case 80 of the telescopic nested structure 80 in which the airbag bag body 74 is accommodated. The appearance is good without being exposed.

  Next, the operation when the head protection airbag device 10 is activated will be described. In FIG. 5, in the vehicle side part structure S2 according to the present embodiment, for example, a side collision load (not shown) is input to the side door 20 due to a side collision, and the side door 20 is deformed to the vehicle inner side due to the side collision load. The head protection airbag device 10 operates, and the airbag device 72 operates in conjunction with the operation of the head protection airbag device 10. About operation | movement of the head protection airbag apparatus 10, it is the same as that of 1st Embodiment.

  The gas ejected from the inflator 18 when the head protection airbag device 10 is operated is supplied to the head protection airbag bag body 16 through the gas supply pipe 90 and through the gas supply pipe 92 branched from the gas supply pipe 90. It is also supplied to the airbag bag body 74. As a result, the airbag bag body 74 is inflated and deployed between the door frame 44 and the door opening 42 on the side of the vehicle, so that the upper portion of the door frame 44 is pushed out of the vehicle. Specifically, the airbag bag body 74 is inflated and deployed in the case 80, and the case 80 extends to the outside of the vehicle, whereby the upper portion of the door frame 44 is pushed out to the outside of the vehicle.

  The extension of the case 80 will be described in more detail. The case 80 has a nested structure including a small case 84, a middle case 86, and a large case 88, and the small case 84 is located on the door opening 42. Since it is being fixed to the outer panel 28 of the side rail 14, the case 80 expand | extends because the middle case 86 and the large case 88 slide to the vehicle outer side with the expansion | deployment deployment of the airbag bag body 74. FIG. Since each part of the case 80 is provided with the guide groove and the guide projection as described above as guide means, the extending direction of the case 80 is guided by the guide groove and the guide protrusion so as to be outside the vehicle. The

  At this time, in the middle case 86, as shown in FIG. 11B, the guide protrusion 86C abuts against the stopper portion 84E of the small case 84, and as shown in FIG. The small case 84 can slide to the outside of the vehicle up to a position where it abuts against the stopper portion 84K of the small case 84. In the large case 88, as shown in FIG. 12B, the guide projection 88A abuts against the stopper portion 86E of the middle case 86, and the guide projection 88B is in the middle case 86 as shown in FIG. It can slide to the vehicle outer side with respect to the middle case 86 until it abuts against the stopper portion 86K.

  Even if the case 80 expands due to the inflation and deployment of the airbag bag body 74, the small case 84, the middle case 86, and the large case 88 do not separate from each other, and the deployment range of the airbag bag body 74 is within the case 80. Limited. For this reason, the pressing force against the door frame 44 does not escape in the vehicle up-down direction or the vehicle front-rear direction, and is held so that the pushing direction of the door frame 44 by the airbag bag body 74 is outside the vehicle. Thereby, the door frame 44 can be pressed efficiently.

  Further, at this time, as shown in FIGS. 11B and 12B, the load receiving plate 82 housed in the small case 84 is pressed to the outside of the vehicle by the inflation pressure of the airbag bag body 74. The three pins 76 (see also FIGS. 7 and 9) disposed on the vehicle outer surface of the load receiving plate 82 break through the thin portion 88T provided on the lateral wall portion 88S of the large case 88. Thereby, each pin 76 protrudes to the vehicle outer side of the horizontal wall portion 88 </ b> S and is inserted into the insertion portion 78 of the door frame 44. When the pin 76 is inserted into the insertion portion 78 and engaged with the insertion portion 78, relative movement in the vehicle vertical direction and the vehicle front-rear direction between the large case 88 and the door frame 44 is suppressed. Thereby, the door frame 44 is held by the airbag bag body 74 so that the pushing direction is the vehicle outer side.

  Thus, in FIG. 14, in the vehicle side part structure S <b> 2 according to the present embodiment, when the head protection airbag bag body 16 is deployed in a curtain shape between the vehicle side part and 24 </ b> H of the occupant 24, The head device airbag 16 can be deployed by stably pushing the door frame 44 and the door glass 22 held by the door frame 44 to the outside of the vehicle by the bag device 72 and various pushing direction holding means. The area can be expanded outside the vehicle.

  Thereby, for example, when the head 24H of the occupant 24 comes into contact with the head protection airbag bag body 16, that is, at the initial stage of restraining the head 24H of the occupant 24 by the head protection airbag bag body 16 The protective airbag bag body 16 can be displaced to the outside of the vehicle as much as the door frame 44 and the door glass 22 are pushed out. Thereby, the timing at which the load from the head protection airbag bag body 16 to the head 24H of the occupant 24 rises is delayed, and the restraint timing of the head 24H of the occupant 24 by the head protection airbag bag body 16 is optimized. be able to.

  Moreover, since the inflator 18 is shared by the head protection airbag bag body 16 and the airbag bag body 74, an increase in cost and mass of the inflator 18 can be suppressed.

(Modification of the second embodiment)
As shown in FIG. 11A, in the case 80 described above, the upper wall portion 84U and the lower wall portion 84D of the small case 84, the upper wall portion 86U and the lower wall portion 86D of the middle case 86, and the large case 88. In the upper wall portion 88U and the lower wall portion 88D, each general portion is formed in a flat shape, but the shape of the general portion is not limited to a flat surface. As shown in FIG. 15A, for example, each general portion may be curved so as to protrude upward in the vehicle width direction.

  When the door frame 44 is pressed to the outside of the vehicle by the airbag bag body 74, the door frame 44 is rotated around a coupling portion (not shown) with the door inner panel 48 or the door outer panel 50, The vertical wall portion 44A may be inclined. However, even in such a case, as shown in FIG. 15B, if each of the general portions of the upper wall portion and the lower wall portion is curved, the case 80 extends substantially on an arc, and the large case This is because the 88 horizontal wall portions 88S can follow the inclined vertical wall portion 44A. Thereby, the door frame 44 can be pushed out to the outside of the vehicle more efficiently.

  In the case 80 described above, the large case 88 is located on the outermost side of the vehicle. However, the present invention is not limited to this, and as shown in FIG. 16, the small case 84 is located on the outermost side of the vehicle. May be. In this case, the lateral wall portion 84S of the small case 84 is positioned outside the airbag bag body 74, the load receiving plate 82, and the pin 76, and a thin portion 84T is formed at a portion corresponding to the pin 76 in the lateral wall portion 84S. Is done. The large case 88 is fixed to the outer panel 28 of the roof side rail 14 located at the door opening 42. About a guide protrusion and a guide groove, it becomes the arrangement | positioning reverse in the structure shown by FIG. 12 (A) in a vehicle width direction.

  In this example, when the airbag bag body 74 is inflated and deployed, the middle case 86 slides to the outside of the vehicle with respect to the large case 88, and the small case 84 slides to the outside of the vehicle with respect to the middle case 86. Then, the lateral wall portion 84S of the small case 84 comes into contact with the vertical wall portion 44A of the door frame 44, whereby the door frame 44 can be pushed out of the vehicle.

  At this time, the pin 76 breaks through the thin wall portion 84T of the small case 84, protrudes to the vehicle outer side of the lateral wall portion 84S, and is inserted into the insertion portion 78 of the door frame 44. When the pin 76 is inserted into the insertion portion 78 and engaged with the insertion portion 78, relative movement in the vehicle vertical direction and the vehicle front-rear direction between the small case 84 and the door frame 44 is suppressed. Thereby, the door frame 44 can be stably pushed out of the vehicle.

  In the present embodiment, the case 80 has a nested structure including the small case 84, the middle case 86, and the large case 88, but the number of cases to be nested is not limited to three.

[Third Embodiment]
In FIG. 17, the vehicle side part structure S <b> 3 according to the present embodiment serves as a door frame push-out mechanism 70 that extends from the lower end of the door frame 44 to the lower side of the side door 20. A door frame extension member 100 that can push the upper portion of the door frame 44 to the outside of the vehicle by being rotationally displaced toward the inside of the vehicle with the belt line portion 102 of the door 20 as a fulcrum.

  Here, in FIG. 17, FIG. 18, the difference between the internal structure of the side door 20 and 1st Embodiment is demonstrated. FIG. 18 is a front view showing the internal structure of the side door 20 as viewed from the inside of the vehicle. A belt line reinforcement 104 that reinforces the door outer panel 50 extends in the vehicle front-rear direction on the belt line portion 102 of the side door 20. As shown in FIG. 18, a fulcrum member 110 having, for example, a hat shape in cross section is fixed to the belt line reinforcement 104. The door frame 44 is passed between the fulcrum member 110 and the belt line reinforcement 104.

  A door outer reinforcement 106 for reinforcing the door outer panel 50 extends in the vehicle front-rear direction, for example, at a substantially central portion of the side door 20 in the vehicle vertical direction. Further, an impact beam 108 extends in the vehicle front-rear direction below the door outer reinforcement 106 in the side door 20. The impact beam 108 is fixed to the door inner panel 48 so as to be close to the door outer panel 50.

  The door frame extension member 100 is connected to the door frame 44 at the upper end and is connected to the impact beam 108 at the lower end 100A. The door frame extension member 100 may be configured integrally with the door frame 44.

  Since other parts are the same as those in the first embodiment or the second embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. 19A and 19B, in the vehicle side part structure S3 according to the present embodiment, a side collision load F is input from the counterpart vehicle 112 to the side door 20 due to, for example, a side collision, and the side collision load F When the side door 20 is deformed to the inside of the vehicle, the impact beam 108 is pushed into the inside of the vehicle, whereby the side impact load F is transmitted to the lower end 100A of the door frame extension member 100.

  Then, the door frame extending member 100 as the door frame pushing mechanism is rotationally displaced inward of the vehicle with the fulcrum member 110 provided in the belt line portion 102 of the side door 20 as a fulcrum. Since the door frame extension member 100 is provided at the lower end of the door frame 44, when the door frame extension member 100 is rotated and displaced toward the inside of the vehicle, the upper portion of the door frame 44 is rotated in the direction of arrow A on the outside of the vehicle. Displace. That is, the upper part of the door frame 44 is pushed out of the vehicle.

  In this embodiment, since the door frame extension member 100 is connected to the impact beam 108 provided on the side door 20, the side impact load F input to the impact beam 108 when the side door 20 is deformed can be efficiently used. Can be transmitted to the door frame extension member 100. For this reason, the upper part of the door frame 44 can be pushed out to the vehicle outer side more efficiently. When the door frame 44 is pushed out of the vehicle, the door glass 22 held by the door frame 44 is also pushed out of the vehicle.

  On the other hand, as shown in FIG. 20, at the time of a side collision, the head protection airbag device 10 is also activated in the same manner as in the first embodiment, and the head protection airbag bag body 16 is connected to the vehicle side portion and the passenger 24. It expands in the form of a curtain. At this time, as described above, the upper portion of the door frame 44 and the door glass 22 are pushed out to the outside of the vehicle, and the deployable region of the head protection airbag bag body 16 is expanded to the outside of the vehicle.

  Thereby, for example, when the head 24H of the occupant 24 comes into contact with the head protection airbag bag body 16, that is, in the initial stage of restraining the head 24H of the occupant 24 by the head protection airbag bag body 16, The protective airbag bag body 16 can be displaced to the outside of the vehicle as much as the door frame 44 and the door glass 22 are pushed out. Thereby, the timing at which the load from the head protection airbag bag body 16 to the head 24H of the occupant 24 rises is delayed, and the restraint timing of the head 24H of the occupant 24 by the head protection airbag bag body 16 is optimized. be able to.

(Modification of the third embodiment)
The configuration of the belt line unit 102 can also be as follows. In the example shown in FIGS. 21, 22 </ b> A, and 22 </ b> B, for example, a round pipe-shaped support member 114 is disposed along the beltline reinforcement 104 in the side door 20. On the other hand, a bearing 116 is attached to the vehicle outer side at the upper end of the door frame extension member 100. The door frame extension member 100 is assembled to the support member 114 via the bearing 116, and is configured to be rotatable about the axial direction of the support member 114 as a rotation axis.

  As shown in FIGS. 22A and 22B, in this example, the side door 20 is deformed to the inside of the vehicle by a side impact load F from the opponent vehicle 112, for example, and the door frame extension member from the impact beam 108 is obtained. When the side impact load F is transmitted to the lower end 100A of 100, the door frame extension member 100 is rotationally displaced inward of the vehicle with the axial direction of the support member 114 as the rotation axis. Along with this, the upper portion of the door frame 44 is rotationally displaced in the direction of arrow A to the outside of the vehicle. That is, the upper part of the door frame 44 is pushed out of the vehicle. As in this example, by providing the belt line portion 102 with the rotation support portion including the support member 114 and the bearing 116, the door frame 44 can be pushed out to the outside of the vehicle more smoothly.

1 to 4 relate to a first embodiment, and FIG. 1 is a cross-sectional view showing a vehicle side part structure. It is an expanded sectional view showing the internal structure of a side door. It is an expanded sectional view showing the state where a projection member and door glass interfere at the time of a side collision, and the door glass is crushed. As the door glass is crushed and removed from within the frame of the door frame, the inflatable region of the head protection airbag bag body is expanded to the outside of the vehicle. It is sectional drawing which shows the state in which the part is restrained at an appropriate timing. 5 to 16 relate to the second embodiment, and FIG. 5 is a cross-sectional view showing the vehicle side part structure. It is an expanded sectional view showing a head protection airbag device and an airbag device as a door pushing mechanism. It is a disassembled perspective view of a case and an airbag bag body. It is a front view which shows the head protection airbag apparatus and the airbag apparatus as a door pushing-out mechanism seen from the vehicle inner side. It is a top view which shows the head protection airbag apparatus and the airbag apparatus as a door pushing mechanism seen from the vehicle upper side. (A) It is an enlarged front view which shows the grommet provided in the notch of the junction part of a vehicle outer side, and the gas supply pipe passed through this grommet. (B) It is 10B-10B arrow sectional drawing in FIG. 10 (A). (A) It is an expanded sectional view which shows the airbag apparatus in the normal time in the cross-sectional position equivalent to 11A-11A arrow in FIG. (B) It is an expanded sectional view which shows the state which the airbag body expand | deployed and the case expand | extends and the door frame is pushed out to the vehicle outer side. (A) It is an expanded sectional view which shows the airbag apparatus in normal time in the cross-sectional position equivalent to 12A-12A arrow in FIG. (B) It is an expanded sectional view which shows the state which the airbag body expand | deployed and the case expand | extends and the door frame is pushed out to the vehicle outer side. It is an expanded sectional view showing the state where the door frame is pushed outside the vehicle by the airbag device as the door push-out mechanism and the head protection airbag bag body is inflated and deployed. When the door frame is pushed out of the vehicle by the airbag device, the inflatable region of the head protection airbag bag body is expanded outside the vehicle. As a result, the head portion of the occupant is properly secured by the head protection airbag bag body. It is sectional drawing which shows the state restrained at various timings. (A) About the modification of a case, it is an expanded sectional view which shows the structure of the cross-sectional position corresponded to 11A-11A arrow in FIG. (B) It is an expanded sectional view which shows the state which the airbag bag body expand | deploys and the case expand | extends and the side wall part of a large case pushes out a door frame to the vehicle outer side, following the inclined vertical wall part. is there. It is an expanded sectional view which shows the modification by which the small case was arrange | positioned most outside the vehicle. FIGS. 17 to 22 relate to the third embodiment, and FIG. 17 is a cross-sectional view showing a vehicle side part structure. It is a front view which shows the internal structure of the side door seen from the vehicle inner side. (A) It is a 19A-19A arrow directional cross-sectional view in FIG. 18 which shows the state by which the door frame extension member is rotationally displaced inside a vehicle at the time of a side collision, and the upper part of the door frame is pushed out to the vehicle outer side. FIG. 19B is a cross-sectional view taken along the arrow 19B-19B in FIG. 18 showing a state where the door frame extension member is rotationally displaced toward the inside of the vehicle at the time of a side collision and the upper portion of the door frame is pushed out of the vehicle. As the door frame is pushed out of the vehicle, the inflatable region of the head protection airbag bag is expanded to the outside of the vehicle. As a result, the head of the occupant is restrained at an appropriate timing by the head protection airbag bag. It is sectional drawing which shows the state performed. In the modification of 3rd Embodiment, it is a front view which shows the internal structure of the side door seen from the vehicle inner side. (A) It is 22A-22A arrow sectional drawing in FIG. 21 which shows the state by which the door frame extension member is rotationally displaced inside a vehicle at the time of a side collision, and the upper part of the door frame is extruded to the vehicle outer side. (B) It is 22B-22B arrow sectional drawing in FIG. 21 which shows the state by which the door frame extension member is rotationally displaced inside a vehicle at the time of a side collision, and the upper part of the door frame is extruded to the vehicle outer side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Head protection airbag apparatus 12 Projection member (area expansion means)
DESCRIPTION OF SYMBOLS 14 Roof side rail 16 Head protection airbag bag 18 Inflator 20 Side door 22 Door glass 24 Crew 24H Head 42 Door opening 44 Door frame 48 Door inner panel 48A Belt line part 58 Lever member 58A Through-hole 70 Door frame extrusion Mechanism (area expansion means)
72 Airbag device (door frame extrusion mechanism)
76 pins (extrusion direction holding means)
78 Insertion part (extrusion direction holding means)
80 case (extrusion direction holding means)
84C Guide groove (guide means)
84G guide groove (guide means)
84H Guide groove (guide means)
84J Guide groove (guide means)
86A Guide groove (guide means)
86B Guide groove (guide means)
86C Guide protrusion (guide means)
86G guide protrusion (guide means)
86H Guide protrusion (guide means)
86J Guide protrusion (guide means)
88A Guide protrusion (guide means)
88B Guide protrusion (guide means)
100 Door frame extension member (door frame extrusion mechanism)
102 Beltline portion 108 Impact beam 110 Support point member S1 Vehicle side portion structure S2 Vehicle side portion structure S3 Vehicle side portion structure

Claims (11)

A head-protecting airbag bag body arranged in a folded state along the roof side rail is configured to receive a gas supply from an inflator so that it can be deployed in a curtain shape between a vehicle side and an occupant. A protective airbag device;
An area enlarging means for enlarging the deployable area of the head protection airbag bag body to the outside of the vehicle when the head protection airbag bag body is deployed;
The vehicle side part structure characterized by having. As the area expanding means,
Among the side doors, the door glass is disposed from the vehicle inner side toward the door glass at a position overlapping with the door glass in the door thickness direction regardless of the opening degree of the door glass, and the side door is deformed. 2. The vehicle side part structure according to claim 1, further comprising: a protruding member capable of interfering with the door glass and removing the door glass when the head protection airbag bag body is deployed. The protruding member is provided in a belt line portion of a door inner panel which is a vehicle inner member of the side door,
A lever member that extends between the protruding member and the door glass, extends downward in the side door, and has a through hole corresponding to the protruding member at a position facing the protruding member and the door thickness direction. Is provided,
The protrusion member protrudes outward in the door thickness direction from the through hole and interferes with the door glass when the lever member is pushed inward of the vehicle as the side door is deformed. Vehicle side part structure as described. As the area expanding means,
The vehicle side part structure according to claim 1, further comprising a door frame push-out mechanism configured to push a frame-like door frame configured to hold an upper portion of the side door and hold the door glass to the outside of the vehicle. As the door frame extrusion mechanism,
An airbag bag body disposed in a folded state at a door opening on a vehicle side corresponding to the side door, the airbag bag body being coupled with the head protection airbag device from the inflator; 5. The airbag device according to claim 4, further comprising an airbag device capable of extruding the door frame to the outside of the vehicle by inflating and deploying between the door frame and the vehicle side portion upon receiving a gas supply. Vehicle side structure.   6. The vehicle side part structure according to claim 5, further comprising push direction holding means capable of holding the push direction so that the push direction of the door frame by the airbag bag body is on the vehicle outer side. As the pushing direction holding means,
A pin disposed on the airbag bag side and facing the door frame, and an insertion portion provided on the door frame corresponding to the pin and into which the pin is inserted when the airbag bag body is deployed. The vehicle side part structure according to claim 6, wherein the vehicle side part structure is provided. As the pushing direction holding means,
The vehicle side part structure according to claim 6, wherein the vehicle side part structure has a case that covers the airbag bag body and that can extend to the outside of the vehicle when the airbag bag body is deployed.   9. The vehicle side part structure according to claim 8, wherein the case is provided with guide means for guiding the case so that the case extends to the outside of the vehicle when the airbag bag body is deployed. As the door frame extrusion mechanism,
From the lower end portion of the door frame, the inside of the side door extends downward in the vehicle, and when the side door is deformed, the upper side of the door frame is placed outside the vehicle by rotating and displacing to the vehicle inner side with the belt line portion of the side door as a fulcrum The vehicle side part structure according to claim 4, further comprising a door frame extending member that can be pushed out.   The vehicle side part structure according to claim 10, wherein the door frame extending member is connected to an impact beam provided on the side door.

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