JP2009006861A - Occupant crash protection device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an occupant crash protection device for a vehicle capable of certainly protecting an occupant by suppressing falling down of an airbag. <P>SOLUTION: The occupant crash protection device for the vehicle protects the occupant by inflating/deploying the airbag 40 between the occupant sitting on a first seat in a cabin and the occupant sitting on a second seat adjacent to a vehicle width direction of the first seat. The airbag 40 is inflated/deployed such that it abuts on an end surface of a front side of the vehicle on a central backrest part 32 provided along the backrest parts between the backrest part of the first seat and the backrest part of the second seat and it is abutted on respective end surfaces at a rear side of the vehicle of the backrest part 52 of a driver's seat 50 and a backrest part of a front passenger seat and end surface at a rear side of the vehicle of a center console 71. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  According to the present invention, a vehicle seated between a passenger seated on a first seat in a passenger compartment and a passenger seated on a second seat adjacent to the first seat in the vehicle width direction or the vehicle of the first seat at the time of a vehicle collision The present invention relates to an occupant protection device for a vehicle that protects an occupant by inflating and deploying an airbag between a space of a predetermined volume adjacent in the width direction.

  Conventionally, as an occupant protection device for this type of vehicle, for example, there is one described in Patent Document 1. FIG. 8 shows an outline of a device that has been generally employed as such a device, including the occupant protection device described in Patent Document 1.

  As shown in FIG. 8, the vehicle interior includes a first seat 10 having a seat 11 and a backrest 12, and a seat 21 and a backrest 22 adjacent to the first seat 10 in the vehicle width direction. A second sheet 20 is provided. A console portion 31 extending in the vehicle front-rear direction is disposed between the seat portions 11, 21 of the two seats 10, 20, and extends from the rear end portion of the console portion 31 in the vehicle front-rear direction toward the ceiling surface. Thus, the central backrest portion 32 is disposed. Further, inside the central backrest portion 32 are housed an airbag 4 and an inflator 9 that injects and supplies gas to the airbag 4.

In the event of a vehicle collision, gas is injected and supplied from the inflator 9 to the airbag 4 so that the airbag 4 is inflated and deployed between an occupant seated on the first seat 10 and an occupant seated on the second seat 20. Thus, the occupant who tries to fall down to the console unit 31 side is protected.
JP-A-6-211076

  By the way, in such a vehicle occupant protection device, since the airbag 4 is only fixed to the vehicle by the base end portion 4A, the force of the occupant to fall down, that is, the force in the vehicle width direction is generated. When acting on the airbag 4, the airbag 4 falls down together with the occupant, and the occupant may not be protected accurately.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a vehicle occupant protection device capable of accurately protecting an occupant by suppressing the collapse of an airbag.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
According to a first aspect of the present invention, an airbag is provided between an occupant seated on a first seat in a passenger compartment and a occupant seated on a second seat adjacent to the first seat in the vehicle width direction at the time of a vehicle collision. In an occupant protection device for a vehicle that protects an occupant by inflating and deploying the airbag, the airbag follows the backrest portion between the backrest portion of the first seat and the backrest portion of the second seat when inflated and deployed. And inflating and deploying so as to abut on the end surface of the central backrest portion provided on the front side of the vehicle and on the end surface of the structure in the vehicle compartment facing the end surface of the central backrest portion on the front side of the vehicle. The gist.

  According to this configuration, when the inflation is completed, the airbag is in contact with the end surface of the central backrest that is in front of the vehicle and is the end surface of the vehicle interior structure that faces the end surface of the central backrest in front of the vehicle. When the force that the occupant tries to incline, that is, the force in the width direction of the vehicle acts on the airbag, the airbag is brought into contact with the end surface of the front of the vehicle at the center back. The frictional force that resists the occupant's falling force is generated at the contact portion between the air bag and the facing surface, and the displacement of the air bag in the vehicle width direction is suppressed. For this reason, the occupant can be accurately protected by suppressing the falling of the airbag. The occupant seated on the seat is virtual, and the occupant does not necessarily have to be seated on both of the two seats. In addition, one of these two seats may not be seated, for example, it may be folded.

  Specifically, the invention according to claim 1 adopts a configuration in which the airbag is housed in a housing portion formed inside the central backrest portion, as in the invention according to claim 2. be able to.

  The gist of a third aspect of the invention is the vehicle occupant protection device according to the second aspect, wherein the airbag is inflated and deployed so as to abut against an inner wall of the storage portion below the vehicle.

  According to this configuration, since the airbag is inflated and deployed so as to come into contact with the inner wall of the storage portion below the vehicle, a force that causes the occupant to fall, that is, a force in the vehicle width direction acts on the airbag. In addition, a frictional force against the occupant's falling force is generated on the contact surface between the airbag and the inner wall, and the displacement of the airbag in the vehicle width direction is further suppressed. For this reason, it becomes possible to further suppress the falling of the airbag.

  According to a fourth aspect of the present invention, in the vehicle occupant protection device according to the second or third aspect, the storage portion is formed in a vehicle upper portion of the central backrest portion, and the airbag is located in the same center. The gist is to inflate and deploy the vehicle below the backrest.

  According to this configuration, since the airbag is inflated and deployed along the center back portion from the vehicle upper portion of the center back portion, that is, along the occupant's body, the airbag is seated on the first seat or the second seat. It is possible to quickly and accurately protect an occupant.

  Further, according to the first aspect of the present invention, specifically, according to the fifth aspect of the present invention, the airbag is provided between the seat portion of the first seat and the seat portion of the second seat. It is possible to adopt a configuration in which the storage unit is stored in a storage unit provided inside the console unit provided to extend in the direction.

  Further, according to the first aspect of the present invention, specifically, according to the sixth aspect of the present invention, the airbag is a portion of the vehicle interior structure that is opposed to the front surface of the vehicle at the center backrest portion. It is possible to adopt a configuration in which it is housed in a housing portion formed inside.

  Specifically, according to the sixth aspect of the present invention, as in the seventh aspect of the present invention, the first seat is located behind the driver seat and the second seat is the passenger seat vehicle. It is located behind, and the storage part is formed inside the vehicle rear portion of the center console formed to extend in the vehicle front-rear direction between the driver seat and the passenger seat. Can be adopted.

  Further, when the first seat and the second seat are a driver seat and a passenger seat, the storage portion is provided at the center portion in the vehicle width direction of the instrument panel as described in claim 8. A configuration in which the center cluster panel is provided can be employed.

  According to a ninth aspect of the present invention, in the vehicle occupant protection device according to any one of the second to eighth aspects, the airbag is inflated and deployed so as to abut against an inner wall of the storage portion in the vehicle width direction. The gist is to do.

  According to this configuration, since the airbag is inflated and deployed so as to abut against the inner wall of the storage portion in the vehicle width direction, a force that causes the occupant to fall, that is, a force in the vehicle width direction acts on the airbag. Then, the airbag receives a reaction force against the force of the occupant falling from the inner wall. For this reason, it becomes possible to further suppress the falling of the airbag.

  The invention according to claim 10 protects an occupant by inflating and deploying an air bag between a passenger sitting on a seat in the passenger compartment and a space of a predetermined volume adjacent to the seat in the vehicle width direction in the event of a vehicle collision. In the vehicle occupant protection device, the airbag has an end surface on the front side of the vehicle at the auxiliary backrest portion that is provided along the same backrest portion between the backrest portion of the first seat and the predetermined space when the airbag is inflated and deployed. And the expansion and deployment of the auxiliary backrest portion so as to abut against a facing surface of the auxiliary backrest portion facing the front surface of the vehicle.

  According to this configuration, when the inflation is completed, the airbag is in contact with the end surface of the auxiliary backrest in front of the vehicle, and is the end surface of the structure in the passenger compartment that faces the end surface of the auxiliary backrest in front of the vehicle. When the force that the occupant tries to incline, that is, the force in the width direction of the vehicle acts on the airbag, the airbag is brought into contact with the end surface of the auxiliary backrest in front of the vehicle. The frictional force that resists the occupant's falling force is generated at the contact portion between the air bag and the facing surface, and the displacement of the air bag in the vehicle width direction is suppressed. For this reason, the occupant can be accurately protected by suppressing the falling of the airbag. Here, the space of a predetermined volume includes, for example, a space for loading luggage.

  As described above, according to the vehicle occupant protection device according to the present invention, the airbag can be prevented from falling down and the vehicle occupant can be protected accurately.

<First Embodiment>
Hereinafter, a first embodiment in which a vehicle occupant protection device according to the present invention is applied to a side collision occupant protection device provided in a rear seat of a vehicle interior will be described with reference to FIGS.

  FIG. 1 is a plan view showing the structure of a passenger compartment centering on the rear seat of a vehicle on which the occupant protection device of this embodiment is mounted. In FIG. 1, the airbag 40 in an inflated state is virtually indicated by a two-dot chain line. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 and is a vertical cross-sectional view of the vehicle centered on the airbag 40 in a fully inflated state. FIG. 3 is a cross-sectional view showing the airbag 40 in a fully inflated state together with a storage portion 33 for storing the airbag 40. 2 and 3, the airbag 40 in a state where the inflation has been completed without being hindered by the structure inside the vehicle compartment is virtually indicated by a two-dot chain line.

  As shown in FIG. 1, the vehicle interior includes a first seat 10 (upper right seat in the figure) having a seat portion 11 and a backrest portion 12, and a seat adjacent to the first seat 10 in the vehicle width direction. A second seat 20 (a lower right seat in the figure) including a portion 21 and a backrest portion 22 is disposed. A driver seat 50 (seat on the upper left in the figure) having a seat 51 and a backrest 52 in front of the first seat 10 and a seat 61 and backrest 62 in front of the second seat 20 in the vehicle. A passenger seat 60 (lower left seat in the figure) is provided. A center console 71 extending in the vehicle front-rear direction is provided between both seat portions 51 and 61 of the driver seat 50 and the passenger seat 60. A console portion 31 extending in the vehicle front-rear direction is provided between both seat portions 11 and 21 of the first seat 10 and the second seat 20.

  As shown in FIGS. 1 and 2, a central backrest portion 32 is provided between the backrest portions 12 and 22 of the first sheet 10 and the second seat 20 so as to follow the backrest portions 12 and 22. ing. A storage portion 33 for storing the airbag 40 and the inflator 9 for injecting and supplying gas to the airbag 40 is provided in the vehicle upper portion of the central backrest portion 32. The airbag 40 is inflated and deployed from the storage portion 33 toward the upper side of the vehicle as shown by the two-dotted line in FIG. 1 and the solid line in FIG. As such, the shape and folding method are set.

  In the event of a side collision of the vehicle, gas is injected and supplied from the inflator 9 to the airbag 40, and the airbag 40 is inflated and deployed between the occupant seated on the first seat 10 and the occupant seated on the second seat 20. . In addition, the passenger | crew who seats on each sheet | seat 10 and 20 is virtual, and the passenger | crew does not necessarily have to seat on each seat | sheet 10,20. Further, one of the two seats 10 and 20 may not be seated, for example, it may be folded.

Next, the specific shape of the airbag 40 will be described in detail with reference to FIGS.
As shown in FIG. 2, the airbag 40 is connected to the inflator 9 at the base end portion 41. Also, as indicated by the two-dot chain line in FIG. 2, the length L1 from the rear end 40A, which is the rear end of the vehicle, to the front end 40B, which is the front of the vehicle, of the airbag 40 is 40 is formed to be larger than the length L2 from the vehicle front end surface of the central backrest portion 32 with which the vehicle 40 comes into contact to each of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 to the vehicle rear end surfaces. Has been. The airbag 40 is formed so as to expand to the vehicle lower side of the lower inner wall 34 located below the vehicle in the inner wall of the storage portion 33. For this reason, in the state actually mounted on the vehicle, as shown by the solid line in FIG. 2, the airbag 40 has a rear end portion 40 </ b> A that faces the end surface of the central backrest portion 32 in front of the vehicle when the inflation is completed. At the same time, the front end portion 40 </ b> B comes into surface contact with the respective rear end surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60. Further, the airbag 40 comes into surface contact with the end surface of the center console 71 on the rear side of the vehicle. Furthermore, the airbag 40 comes into surface contact with the lower inner wall 34 of the storage portion 33.

  Further, as indicated by a two-dot chain line in FIG. 3, the airbag 40 has a length L3 in the vehicle width direction of a portion of the airbag 40 located inside the storage portion 33 so that the airbag 40 abuts. The length between the inner walls of the storage portion 33, that is, the length L4 from the right inner wall 35 to the left inner wall 36 is formed slightly larger. For this reason, in the state actually mounted in the vehicle, as shown by the solid line in FIG. 3, the airbag 40 comes into surface contact with the right inner wall 35 and the left inner wall 36 of the storage portion 33.

  According to the occupant protection device of this embodiment, the inflated airbag 40 is fixed to the vehicle (inflator 9) by the base end portion 41, and the rear end portion 40A and the central backrest portion 32 are arranged in front of the vehicle. Surface contact with the end surface, surface contact between the front end portion 40B and the respective back surface portions of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60, and the airbag 40 and the center console 71 It will be supported by the vehicle through surface contact with the rear end surface of the vehicle. Furthermore, the airbag 40 is supported by the vehicle through surface contact with the lower inner wall 34, the right inner wall 35, and the left inner wall 36 of the storage portion 33.

According to the vehicle occupant protection device of this embodiment described above, the effects listed below can be obtained.
(1) When the airbag 40 is inflated and deployed, the airbag 40 abuts against an end surface of the central backrest portion 32 in front of the vehicle, and each end surface of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 on the rear side of the vehicle. In addition, the center console 71 is inflated and deployed so as to be in contact with the end face of the vehicle rear side. Thus, when a force that causes the occupant to fall down, that is, a force in the vehicle width direction, acts on the airbag 40, the contact portion between the airbag 40 and the end surface of the central backrest portion 32 in front of the vehicle, the airbag 40. And a contact portion between the backrest portions 52 and 62 and the rear end surface of the vehicle, and a contact portion between the airbag 40 and the end surface of the center console 71 on the rear side of the vehicle, a frictional force that resists the force of the occupant to fall down is generated. As a result, the displacement of the airbag in the vehicle width direction is suppressed. For this reason, the occupant can be protected accurately by suppressing the airbag 40 from falling down.

  (2) The airbag 40 is inflated and deployed so as to contact the right inner wall 35 and the left inner wall 36 of the storage portion 33. As a result, when a force that causes the occupant to fall, that is, a force in the vehicle width direction, acts on the airbag 40, the airbag 40 receives a reaction force that resists the occupant's falling force from the inner walls 35 and 36. It becomes like this. For this reason, falling of the airbag 40 can be further suppressed.

  (3) The airbag 40 is inflated and deployed so as to contact the lower inner wall 34 of the storage portion 33. As a result, when a force that causes the occupant to fall, that is, a force in the vehicle width direction acts on the airbag 40, the force against the occupant falls on the contact surface between the airbag 40 and the lower inner wall 34. A frictional force is generated, and the displacement of the airbag in the vehicle width direction is suppressed. For this reason, falling of the airbag 40 can be further suppressed.

(4) The storage part 33 is formed on the upper part of the central backrest part 32. The airbag 40 is inflated and deployed below the vehicle along the central backrest portion 32. Accordingly, the airbag 40 is inflated and deployed from the upper part of the central backrest part 32 along the central backrest part 32 to the vehicle lower side, that is, along the occupant's body, so that the first seat 10 or the second seat 20 is expanded. A seated passenger can be protected quickly and accurately.
<Second Embodiment>
In the following, a second embodiment in which the vehicle occupant protection device according to the present invention is applied to a side collision occupant protection device provided in a rear seat of a vehicle interior will be described with reference to FIGS. The description will focus on the differences from the form.

  FIG. 4 is a view corresponding to FIG. 1 described above, and is a plan view showing the structure of the passenger compartment centering on the rear seat of the vehicle on which the occupant protection device of this embodiment is mounted. In FIG. 4, the airbag 240 in an inflated state is virtually indicated by a two-dot chain line. FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 4, and is a vertical cross-sectional view of the vehicle centered on the airbag 240 in a completely inflated state. In FIG. 5, the airbag 240 in a state where the inflation is completed without being inflated by the structure inside the vehicle compartment is virtually indicated by a two-dot chain line.

  As shown in FIGS. 4 and 5, a central backrest portion 232 is provided between the backrest portions 12 and 22 of the first sheet 10 and the second seat 20 so as to follow the backrest portions 12 and 22. Yes. A console portion 231 extending in the vehicle front-rear direction is provided between the seat portions 11 and 21 of the first seat 10 and the second seat 20. Inside the console portion 231, there is provided a storage portion 233 for storing the airbag 240 and an inflator 209 that injects and supplies gas to the airbag 240. The airbag 240 is inflated and deployed from the storage portion 233 toward the upper side of the vehicle, as indicated by the two-dot chain line in FIG. 4 and the solid line in FIG. Specifically, the airbag 240 is first inflated and deployed above the vehicle, and the vehicle rear end surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 and the center console 71 at the rear of the vehicle. A shape, a folding method, and the like are set so that the vehicle is inflated and deployed along the end surface above the vehicle, and is inflated and deployed along the end surface of the central backrest 32 on the front side of the vehicle.

  In the event of a side collision of the vehicle, gas is injected and supplied from the inflator 209 to the airbag 240, and the airbag 240 is inflated and deployed between the passenger seated on the first seat 10 and the passenger seated on the second seat 20. .

Next, a specific shape of the airbag 240 will be described in detail with reference to FIGS. 4 and 5.
As shown in FIG. 4, the airbag 240 is connected to the inflator 209 at its base end 241. Further, as indicated by a two-dot chain line in FIG. 4, a length L5 from the rear end portion 240A, which is an end portion on the rear side of the vehicle, to the front end portion 240B, which is an end portion on the front side of the vehicle. 240 is formed to be longer than the length L2 from the vehicle front end surface of the central back portion 232 with which the vehicle 240 comes into contact to the respective back surface portions 52 and 62 of the driver seat 50 and the passenger seat 60 to the vehicle rear end surfaces. Has been. For this reason, in the state actually mounted on the vehicle, as shown by the solid line in FIG. 5, the airbag 240 has a rear end portion 240 </ b> A that faces the end surface of the central backrest portion 232 in front of the vehicle when the inflation is completed. At the same time, the front end portion 240B comes into surface contact with the respective rear end surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60, respectively.

  According to the occupant protection device of this embodiment, the inflated airbag 240 is fixed to the vehicle (inflator 209) by the base end portion 241 and the rear end portion 240A and the center backrest portion 32 are arranged in front of the vehicle. Through surface contact with the end surface, and through surface contact between the front end portion 240B of the driver seat 50 and the back seat portions 52 and 62 of the passenger seat 60 and the end surface of the center console 71 on the rear side of the vehicle. It will be supported by the vehicle.

According to the vehicle occupant protection device according to this embodiment described above, the following effects can be obtained.
(1) The airbag 240 abuts against an end surface of the central backrest portion 232 in front of the vehicle at the time of inflating and deploying, and rear end portions of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 on the rear side of the vehicle. The center console 71 is inflated and deployed so as to come into contact with the end surface of the vehicle rear side. Thus, when a force that causes the occupant to fall down, that is, a force in the vehicle width direction, acts on the airbag 240, the contact portion between the airbag 240 and the end surface of the central backrest 232 in front of the vehicle, the airbag 240. And a contact portion between the backrest portions 52 and 62 and the rear end surface of the vehicle, and a contact portion between the airbag 240 and the end surface of the center console 71 on the rear side of the vehicle, a frictional force that resists the force by which the occupant falls is generated. As a result, the displacement of the airbag 240 in the vehicle width direction is suppressed. For this reason, the occupant can be accurately protected by suppressing the falling of the airbag 240.
<Third Embodiment>
Hereinafter, a third embodiment in which a vehicle occupant protection device according to the present invention is applied to a side collision occupant protection device provided in a rear seat of a vehicle interior will be described with reference to FIGS. The difference will be mainly described.

  FIG. 6 is a view corresponding to FIGS. 1 and 4 described above, and is a plan view showing the structure of the passenger compartment centering on the rear seat of the vehicle on which the occupant protection device of this embodiment is mounted. In FIG. 6, the airbag 340 in the inflated state is virtually shown by a two-dot chain line. FIG. 7 is a cross-sectional view taken along the line C-C of FIG. 6, and is a vertical cross-sectional view of the vehicle centered on the airbag 340 in a fully inflated state. In FIG. 7, the airbag 340 in a state where the inflation has been completed without being hindered by the structure in the vehicle compartment is virtually indicated by a two-dot chain line.

  As shown in FIGS. 6 and 7, a central backrest portion 332 is provided between the backrest portion 12 of the first seat 10 and the backrest portion 22 of the second seat 20 so as to follow these backrest portions 12 and 22. Is provided. A console portion 331 extending in the vehicle front-rear direction is provided between the seat portion 11 of the first seat 10 and the seat portion 21 of the second seat 20. A center console 371 extending in the vehicle front-rear direction is provided between the seat portions 51 and 61 of the driver seat 50 and the passenger seat 60. A storage portion 333 for storing the airbag 340 and an inflator 309 for injecting and supplying gas to the airbag 340 is provided inside the vehicle rear portion of the center console 371. The airbag 340 is inflated and deployed from the storage portion 333 toward the upper side and the rear side of the vehicle, as indicated by the two-dot chain line in FIG. 6 and the solid line in FIG. Specifically, the airbag 340 is inflated and deployed upward along the vehicle rear end surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60, while on the upper surface of the console portion 331. A shape, a folding method, and the like are set so as to expand and deploy along the rear of the vehicle.

  In the event of a side collision of the vehicle, gas is injected and supplied from the inflator 309 to the airbag 340, and the airbag 340 is inflated and deployed between the passenger seated on the first seat 10 and the passenger seated on the second seat 20. .

Next, a specific shape of the airbag 340 will be described in detail with reference to FIGS.
As shown in FIG. 6, the airbag 340 is connected to the inflator 309 at its proximal end 341. Further, as indicated by a two-dot chain line in FIG. 6, a length L6 from the rear end portion 340A, which is an end portion on the rear side of the vehicle, to the front end portion 340B, which is an end portion on the front side of the vehicle, of the airbag 340 is 340 is formed to be longer than the length L2 from the vehicle front end face of the central backrest portion 332 to be in contact with the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 to the rear end faces of the vehicle. Has been. For this reason, when actually mounted on the vehicle, as shown by the solid line in FIG. 7, the airbag 340 has a rear end portion 340 </ b> A that faces the end surface of the central backrest portion 332 in front of the vehicle when the inflation is completed. At the same time, the front end portion 340 </ b> B comes into surface contact with the respective rear end surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60.

  According to the occupant protection device of this embodiment, the inflated airbag 340 is fixed to the vehicle (inflator 309) by the base end portion 341, and the rear end portion 340A and the central backrest portion 32 are arranged in front of the vehicle. The vehicle is supported by the vehicle through surface contact with the end surface and surface contact between the front end portion 340B and the respective back surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60.

According to the vehicle occupant protection device according to this embodiment described above, the following effects can be obtained.
(1) The airbag 340 is in contact with the end surface of the central backrest portion 332 at the front of the vehicle when inflated and deployed, and on the end surfaces of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 at the rear of the vehicle. It was assumed to expand and deploy so as to abut. Thus, when a force that causes the occupant to fall down, that is, a force in the vehicle width direction, acts on the airbag 340, the contact portion between the airbag 340 and the end surface of the central backrest 332 in front of the vehicle, the airbag 340 And a frictional force that resists the occupant's inclining force is generated at the contact portion between the backrest portions 52 and 62 and the rear end surface of the vehicle so that the displacement of the airbag 340 in the vehicle width direction is suppressed. Become. For this reason, it is possible to prevent the airbag 340 from falling down and protect the occupant accurately.

  The vehicle occupant protection device according to the present invention is not limited to the configuration exemplified in the above-described embodiment, and can be implemented as, for example, the following forms appropriately modified.

  In the third embodiment, the configuration in which the storage portion 333 for storing the airbag 340 is formed in the vehicle rear portion of the center console 371, but the vehicle front of the center back portion of the vehicle interior structure is described. In addition, the storage portion formed inside the portion facing the end face of the vehicle is formed inside the vehicle rear portion of the backrest portion 52 of the driver seat 50 and the backrest portion 62 of the passenger seat 60. There may be.

  In the first embodiment, the storage portion 33 for storing the airbag 40 is illustrated as being formed on the upper portion of the central backrest portion 32. However, the position of the storage portion in the central backrest portion is limited to this. Instead, it may be formed below the backrest. In this case, if the airbag is inflated and deployed upward along the backrest portion, the airbag will be inflated and deployed along the body of the occupant. Therefore, the occupant seated on the first seat or the second seat It can be protected quickly and accurately.

  As in the first embodiment, the airbag 40 is in contact with the lower inner wall 34 of the storage portion 33, and the airbag 40 is in contact with the right inner wall 35 and the left inner wall 36 of the storage portion 33. It is desirable to inflate and deploy the inner wall 34 to 36 and the airbag 40 in order to generate a frictional force against the occupant's falling force. However, the rear end portions 40A and the front end portions 40B of the airbag 40 and the abutting portions of the central backrest portion 32 with the front surface of the vehicle, the rear portions 52 and 62 of the backrest portions 52 and 62 of the driver seat 50 and the passenger seat 60 are provided. If the airbag 40 can be sufficiently prevented from falling by the frictional force at the contact portions with the respective end surfaces and the contact portion with the end surface of the center console 71 at the rear of the vehicle, the inner walls 34 to 36 and You may employ | adopt the structure which the airbag 40 does not contact | abut.

  In each of the above embodiments, the occupant protection device for the rear seat of the vehicle is illustrated, but the seat to which the occupant protection device of the present invention is applied is not limited to the rear seat, and this is applied to the front seat. It is also possible. That is, it is possible to protect the passenger by inflating and deploying an airbag between the passenger sitting on the driver seat and the passenger seat adjacent to the driver seat in the vehicle width direction. In this case, for example, the storage portion for storing the airbag may be formed inside the center cluster panel provided at the center portion in the vehicle width direction of the instrument panel. In short, the airbag is in contact with the vehicle front end surface at the center back portion provided along the backrest portion between the backrest portion of the first seat and the backrest portion of the second seat when inflated and deployed. What is necessary is just to expand | swell so that it may contact | abut to the opposing surface which is an end surface of an indoor structure, and opposes the end surface of the center back part ahead of the vehicle.

  In each of the above embodiments, the airbag is inflated and deployed between the occupant seated on the first seat and the occupant seated on the second seat adjacent to the first seat in the vehicle width direction. The present invention can also be applied to a layout in which a space of a predetermined volume such as a space for loading a load is formed instead of the second seat in the vehicle width direction of the first seat. That is, in a vehicle occupant protection device for protecting an occupant by inflating and deploying an airbag between a occupant seated on a seat in a vehicle interior and a space of a predetermined volume adjacent to the seat in the vehicle width direction in the event of a vehicle collision The present invention can also be applied to this. In this case, the airbag is in contact with the front end surface of the vehicle in the auxiliary backrest portion provided along the same backrest portion between the backrest portion of the seat and the predetermined space when inflated and deployed. What is necessary is just to inflate and expand so that it may contact | abut the end surface which is an end surface which opposes the end surface of the auxiliary | assistant backrest ahead of the vehicle.

The top view centering on the structure of the vehicle by which the passenger | crew protection device concerning 1st Embodiment of this invention is mounted. AA sectional drawing of FIG. The cross-sectional view which showed the airbag of the state completed the expansion concerning the embodiment with the accommodating part. The top view centering on the structure of the vehicle by which the passenger | crew protection apparatus concerning 2nd Embodiment of this invention is mounted. BB sectional drawing of FIG. The top view centering on the structure of the vehicle by which the passenger | crew protection device concerning 3rd Embodiment of this invention is mounted. CC sectional drawing of FIG. The perspective view which showed the conventional passenger protection device with the back seat of the vehicle.

Explanation of symbols

  4, 40, 240, 340 ... airbag, 4A, 41 ... base end, 9, 209, 309 ... inflator, 10 ... first seat, 11 ... seat, 12 ... backrest, 13 ... headrest, 20 ... first 2 seats, 21 ... seat, 22 ... backrest, 23 ... headrest, 31,231,331 ... console, 32,232,332 ... central backrest, 33 ... storage, 34 ... lower inner wall, 35 ... right Inner wall, 36 ... left inner wall, 40A ... lower end, 40B ... upper end, 41 ... base end, 60 ... seat, 61 ... backrest, 40A, 240A, 340A ... rear end, 40B, 240A, 340A ... front end , 50 ... Driver seat, 51 ... Seat, 52 ... Backrest, 53 ... Headrest, 60 ... Passenger seat, 61 ... Seat, 62 ... Backrest, 63 ... Headrest, 71, 3 1 ... center console.

Claims (10)

A vehicle that protects an occupant by inflating and deploying an airbag between an occupant seated on a first seat in a vehicle interior and an occupant seated on a second seat adjacent to the first seat in the vehicle width direction in the event of a vehicle collision In the occupant protection device of
When the airbag is inflated and deployed, the airbag abuts against an end surface of the front of the vehicle at a central backrest portion provided along the backrest portion between the backrest portion of the first seat and the backrest portion of the second seat. An occupant protection device for a vehicle, wherein the vehicle occupant protection device is inflated and deployed so as to abut on an end surface of the structure in the vehicle compartment, which is opposed to an end surface of the central backrest portion facing the front surface of the vehicle. The vehicle occupant protection device according to claim 1,
The vehicle occupant protection device, wherein the airbag is stored in a storage portion formed inside the central backrest portion. The vehicle occupant protection device according to claim 2,
The vehicle occupant protection device according to claim 1, wherein the airbag is inflated and deployed so as to contact an inner wall of the storage portion below the vehicle. In the vehicle occupant protection device according to claim 2 or 3,
The vehicle occupant protection device according to claim 1, wherein the storage portion is formed in an upper portion of the vehicle at the central back portion, and the airbag is inflated and deployed downward along the central back portion. The vehicle occupant protection device according to claim 1,
The airbag is housed in a housing portion provided inside a console portion provided to extend in the vehicle front-rear direction between the seat portion of the first seat and the seat portion of the second seat. A vehicle occupant protection device. The vehicle occupant protection device according to claim 1,
The vehicle occupant protection device according to claim 1, wherein the airbag is housed in a housing portion formed in a portion of the structure in the vehicle compartment that faces an end surface of the central backrest portion in front of the vehicle. The vehicle occupant protection device according to claim 6,
The first seat is located behind the driver seat and the second seat is located behind the passenger seat, and the storage portion includes the driver seat and the passenger seat. A vehicle occupant protection device, characterized in that it is formed inside a vehicle rear portion of a center console formed so as to extend in the vehicle front-rear direction between the vehicle and the seat. The vehicle occupant protection device according to claim 6,
The first seat and the second seat are a driver seat and a passenger seat, and the storage portion is formed inside a center cluster panel provided at a center portion in the vehicle width direction of the instrument panel. A vehicle occupant protection device. The vehicle occupant protection device according to any one of claims 2 to 8,
The vehicle occupant protection device according to claim 1, wherein the airbag is inflated and deployed so as to abut against an inner wall of the storage portion in the vehicle width direction. In a vehicle occupant protection device for protecting an occupant by inflating and deploying an air bag between a occupant seated on a seat in a passenger compartment and a space of a predetermined volume adjacent to the seat in the vehicle width direction at the time of a vehicle collision,
The airbag is in contact with a front end surface of a vehicle in an auxiliary backrest portion provided along the same backrest portion between the backrest portion of the seat and the predetermined space when inflated and deployed. The vehicle occupant protection device according to claim 1, wherein the occupant protection device is inflated and deployed so as to be in contact with an opposite surface of the auxiliary backrest that faces the end surface of the front of the vehicle.

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