JP2019196157A - Rear seat passenger protector - Google Patents

Abstract

To appropriately protect a passenger seated on a center part in a rear seat from a center air bag which expands from a roof.SOLUTION: The rear seat passenger protector comprises a center air bag 13 that expands toward a front side of a passenger on a center part of a rear seat and a front passenger seat air bag 15 that expands toward a front side of a front passenger seat 3. In the front passenger seat air bag 15 is consecutively formed a rearward reaction force bag part 16 that expands toward a rearward side between a driver seat 2 and the front passenger seat 3 from a center part of a vehicle. The rearward reaction force bag part 16 bears support force of the center air bag 13 to receive reaction force of the center air bag 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a rear seat occupant protection device that deploys an airbag to protect a rear seat occupant.

  In order to protect the passengers in the rear seat, the rear seat is equipped with an airbag device on the back side of the seat back of the driver's seat and passenger seat, and the airbag is deployed on the rear side to protect the passenger in the rear seat An occupant protection device is conventionally known (for example, Patent Document 1). Further, a rear-seat occupant protection device has been conventionally known in which an airbag device is mounted on the roof portion in front of the rear seat and the airbag is deployed rearward and lower to protect the rear-seat occupant (for example, patents). Reference 2).

  By applying the techniques of Patent Document 1 and Patent Document 2, the airbag is deployed at the time of a frontal collision, and the impact on the passenger in the rear seat is reduced, so that the passenger in the rear seat can be protected. The force received by the airbag when the passenger in the rear seat moves to the front side, that is, the reaction force when the passenger in the rear seat enters the airbag, is received by the seat back of the driver seat and the passenger seat. Can protect the passengers in the rear seats appropriately.

  However, the vehicle has a three-seat seat (three or more seats) as the rear seat, and the occupant (center occupant) is located between the driver seat and the occupant (outside occupant) behind the passenger seat. May be seated. However, since there are vehicles that do not have a driver's seat and a passenger seat in front of the central occupant, an airbag device is not provided for the central occupant in the rear seat.

  It is also conceivable that an airbag device is mounted on the central roof portion. However, since there is no member that receives the reaction force when the passenger in the rear seat enters the airbag, the rear seat cannot receive the reaction force when the passenger in the rear seat enters the airbag. There is a possibility that the passengers cannot be sufficiently protected.

JP-A-4-166455 JP-A-10-264761

  The present invention has been made in view of the above situation, and reliably receives the reaction force when entering the airbag with respect to the passenger in the center of the rear seat of a plurality of persons, and appropriately protects the passenger in the rear seat An object of the present invention is to provide a rear seat occupant protection device.

  In order to achieve the above object, a rear seat occupant protection device according to claim 1 of the present invention is mounted on a roof portion and is deployed toward the front side of the occupant in the center of the rear seat, a driver seat, and And a reaction force airbag that is deployed between the passenger seats and restricts the movement of the central airbag toward the front side of the vehicle.

  In the present invention according to claim 1, for example, the central airbag is deployed toward the front side of the occupant in the center of the rear seat at the time of a front collision, and the movement of the central occupant to the front side is received by the central airbag. At the same time, the reaction force airbag is deployed between the driver seat and the passenger seat, and the support force of the central airbag is borne by the reaction force airbag so that the reaction force of the central airbag is received. For this reason, even if it is a center airbag developed from a roof, the movement to the front side of the passenger | crew of a center part can be received.

  Therefore, it is possible to reliably receive the reaction force when the passenger enters the airbag in the center of the rear seat of a plurality of passengers and appropriately protect the passenger in the rear seat.

  According to a second aspect of the present invention, the rear seat occupant protection device of the present invention is the rear seat occupant protection device according to the first aspect, wherein the reaction force airbag is a front passenger seat airbag that is deployed on the front side of the front passenger seat. It is a rear reaction force bag portion that is formed continuously and extends from the center of the passenger seat airbag to the rear side between the driver seat and the passenger seat.

  In the present invention according to claim 2, the supporting force of the central airbag is borne by the rear reaction force bag portion formed continuously with the passenger seat airbag, and the reaction force of the central airbag is received.

  According to a third aspect of the present invention, the rear seat occupant protection device according to the present invention is the rear seat occupant protection device according to the second aspect, wherein the rear reaction force bag portion is configured such that the passenger in the front passenger seat is on the driver's seat side when deployed. It is arranged at a position for receiving the diagonally forward movement, and is provided with a reaction force means for supplementing the reaction force against the central airbag.

  In the present invention according to claim 3, the rear reaction force bag portion is arranged at a position where the passenger in the front passenger seat moves obliquely forward on the driver's seat side when deployed, so as to supplement the reaction force against the central airbag. Therefore, at the time of an offset frontal collision where the front of the driver's side vehicle collides, both the function of catching the passenger in the front passenger's seat moving diagonally forward on the driver's side and the reaction force against the central airbag are compatible. Can do.

  According to a fourth aspect of the present invention, there is provided a rear seat occupant protection device according to the first aspect of the present invention, wherein the reaction force airbag is a seat back of the driver seat or a passenger seat. It is a seat reaction force bag portion that is deployed from the inner side of at least one of the seat backs in the vehicle width direction, and the seat reaction force bag portion is provided with reaction force means that supplements the reaction force against the central airbag. Features.

  In the present invention according to claim 4, reaction force means for compensating the reaction force is provided, and a seat reaction force bag portion deployed from at least one of a driver's seat back or a passenger seat seat back has a central airbag. The supporting force is borne and the reaction force of the central airbag is received.

  Since the seat reaction force bag portion is deployed between the driver seat and the passenger seat, it is possible to obtain a required function of the front center airbag that suppresses the interference of the front seat occupant during a side collision. It is preferable that the seat reaction force bag portion is disposed at a position that covers the head of the occupant in the vehicle width direction when deployed.

  According to a fifth aspect of the present invention, the rear seat occupant protection device according to the present invention is the rear seat occupant protection device according to the fourth aspect, wherein the reaction force means is provided on a surface with respect to the central airbag to increase surface rigidity. Therefore, it is characterized by being a chamber in which gas is enclosed.

  In the present invention according to claim 5, the surface rigidity is increased by the chamber filled with gas, and the reaction force of the central airbag can be appropriately received. As the reaction force means, means for controlling the gas pressure, for example, a plurality of inflators can be used. By controlling the gas pressure at the time of side impact and front impact, for example, at the time of side impact, the reaction force airbag is actuated with a single inflator (the seat reaction force bag portion is deployed) to reduce the rigidity in the vehicle width direction. In the case of a front impact, the reaction force airbag can be operated by a plurality of inflators to increase the pressure in the bag, thereby satisfying both the required function of the front center airbag and the function request for compensating the reaction force against the central airbag. .

  A rear seat occupant protection device according to a sixth aspect of the present invention is the rear seat occupant protection device according to the fourth aspect, wherein the reaction force means is formed continuously from the seat reaction force bag portion and deployed. It is a pressing part which is pressed and restrained by the seat back of the said driver's seat which opposes sometimes, or the seat back of the said passenger seat.

  In the present invention according to claim 6, when the seat reaction force bag portion is deployed, the pressing portion is pressed against the seat back of the driver seat or the seat back of the passenger seat, and the seat reaction force bag portion is the driver seat and the passenger seat. The reaction force of the central airbag is received by being strongly sandwiched between the seats (between the seat backs). The pressing part may be provided integrally with the seat reaction force bag part or may be provided separately.

  According to a seventh aspect of the present invention, the rear seat occupant protection device according to the present invention is the rear seat occupant protection device according to the fourth aspect, wherein the reaction force means is provided on a surface with respect to the central airbag to increase surface rigidity. For this reason, a pressure chamber is formed continuously with the gas reaction chamber and the seat reaction force bag portion, and is pressed and restrained by the seat back of the driver's seat or the seat back of the passenger seat facing each other during deployment. Part.

  In the present invention according to claim 7, the surface rigidity is increased by the chamber filled with the gas, the reaction force of the central airbag can be appropriately received, and when the seat reaction force bag portion is deployed, the pressing portion is Pressed against the driver's seat back or the passenger seat back, the seat reaction force bag is strongly sandwiched between the driver seat and the passenger seat (between the seat back), and the reaction force of the central airbag is received. .

  According to an eighth aspect of the present invention, the rear seat occupant protection device according to the present invention is the rear seat occupant protection device according to the first aspect, wherein the reaction force airbag is a front passenger seat airbag deployed on the front side of the front passenger seat. A rear reaction force bag portion that is continuously formed and extends from a center portion of the vehicle of the passenger seat airbag to the driver seat, and a rear side between the passenger seats, and a seat back of the driver seat, or A reaction force bag portion deployed from at least one inner side of the seat back of the passenger seat, and a seat reaction force bag portion deployed from at least one inner side of the seat back of the driver seat or the passenger seat. It is characterized by comprising.

  In the present invention according to claim 8, the seat reaction force developed from at least one of the rear reaction bag portion formed continuously with the passenger seat airbag and the seat back of the driver seat or the seat back of the passenger seat. The bag portion bears the support force of the central airbag and receives the reaction force of the central airbag.

  The rear-seat occupant protection device of the present invention can reliably protect the occupant in the center of the rear seat for multiple passengers and reliably protect the rear-seat occupant when it enters the airbag. become.

It is an external view explaining the backseat occupant protection device concerning the 1st example of the present invention. It is a top view explaining the backseat occupant protection device concerning the 1st example of the present invention. It is a figure of the condition of the III-III line arrow in FIG. It is a top view explaining the backseat occupant protection device concerning the 2nd example of the present invention. It is a figure of the condition of the VV line arrow in FIG. It is the external view which looked at the driver's seat and the passenger seat from back. It is a top view explaining the backseat occupant protection device concerning the 3rd example of the present invention. It is a figure of the condition of the VIII-VIII line arrow in FIG. It is the external view which looked at the driver's seat and the passenger seat from back.

A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows the appearance of the front seat viewed from the rear seat side for explaining the rear seat occupant protection device according to the first embodiment of the present invention, and FIG. 2 shows the rear according to one embodiment of the present invention. FIG. 3 shows the situation of the seat occupant protection device in a plan view, and FIG. 3 shows the situation of arrow III-III in FIG. 2 (the situation in the side view of the rear occupant protection device according to the first embodiment of the present invention). is there.

  As shown in the drawing, as the rear seat occupant protection device 1, an outer airbag unit 5 is mounted on each of the seat back 2 a of the driver seat 2 and the seat back 3 a of the passenger seat 3. The outer airbag unit 5 is configured so that the outer airbag 6 is placed on the front side of the occupant outside the rear seat (the occupant behind the driver's seat 2 and the occupant behind the passenger seat 3). Configured to deploy).

  Further, as the rear seat occupant protection device 1, a central airbag unit 12 is mounted on a roof portion 11 that covers the upper part of the passenger compartment. The central airbag unit 12 is configured such that the central airbag 13 is disposed in front of the center passenger in the rear seat (rear seat central portion: for example, the center passenger in the three-seat seat) by ejecting gas. It is configured to deploy (towards the center).

  Further, the rear passenger occupant protection device 1 is deployed between the driver's seat 2 and the passenger seat 3 and is used as a reaction force airbag for restricting the movement of the central airbag 13 toward the front side of the vehicle. The rear reaction force bag portion 16 is arranged.

  That is, the front panel portion 17 of the front passenger seat 3 is provided with a front passenger seat airbag unit, and faces the front side of the front passenger seat 3 (to the front side of the passenger in the front passenger seat 3) at the time of a front collision. Has come to expand. The passenger seat airbag 15 is continuously formed with a rear reaction force bag portion 16 that extends from the center of the vehicle to the rear side between the driver seat 2 and the passenger seat 3.

  For example, at the time of a frontal collision, the outer airbag 6 is deployed on the front side (toward the rear seat side) of the occupant outside the rear seat (the occupant behind the driver seat 2 and the occupant behind the passenger seat 3) The airbag 13 is deployed toward the center of the rear seat, and the outer airbag 6 receives the movement of the outer occupant to the front side, and the central airbag 13 receives the movement of the center occupant to the front side. At the same time, the passenger seat airbag 15 is deployed and the rear reaction force bag portion 16 is deployed between the driver seat 2 and the passenger seat 3, and the support force of the central airbag 13 is borne by the rear reaction force bag portion 16. Thus, the reaction force of the central airbag 13 is received.

  For this reason, even if it is the central airbag 13 expand | deployed from the roof part 11, the movement to the front side of the passenger | crew of a center part can be received appropriately. Accordingly, it is possible to reliably receive the reaction force when the passenger in the center of the rear seat of the plurality of persons enters the central airbag 13 and appropriately protect the passenger in the rear seat.

  Further, the rear reaction force bag portion 16 is disposed at a position where the passenger of the passenger seat 3 receives the diagonally forward movement on the driver seat 2 side when deployed. And although illustration was abbreviate | omitted, the back reaction force bag part 16 is equipped with the reaction force means which supplements the reaction force with respect to the center airbag 13. As shown in FIG.

  The rear reaction bag portion 16 is arranged at a position where the passenger of the passenger seat 3 receives the diagonally forward movement on the driver's seat 2 side when deployed, and supplements the reaction force against the central airbag 13 by the reaction force means. Therefore, at the time of an offset frontal collision where the front side of the vehicle on the driver's seat 2 collides, a function of catching the passenger in the passenger's seat 3 moving diagonally forward on the side of the driver's seat 2 and the reaction against the central airbag 13 You can balance power. As a reaction force means, it can be set as the structure provided with the chamber part filled with gas separately, for example.

  By providing the reaction force means, the rigidity in the vehicle width direction of the rear reaction force bag portion 16 is lowered (softened) to ensure the required function at the time of the front collision of the offset, and the front and rear direction of the rear reaction force bag portion 16 It is possible to secure a functional requirement that compensates for the reaction force against the central airbag 13 by increasing (stiffening) the rigidity.

  As a means for reducing the rigidity of the rear reaction force bag portion 16 in the vehicle width direction, it is also possible to provide a vent hole to control gas discharge. Further, as the reaction force means, means (a plurality of inflators) for controlling the gas pressure can be used.

A second embodiment of the present invention will be described with reference to FIGS.
FIG. 4 is a plan view illustrating a rear seat occupant protection device according to the second embodiment of the present invention, and FIG. 5 is a view taken along the line VV in FIG. 4 (second embodiment of the present invention). FIG. 6 shows the appearance of the driver's seat and the passenger's seat as viewed from the rear. In addition, the same code | symbol is attached | subjected to the same member as 1st Example shown in FIGS. 1-3, and the overlapping description is abbreviate | omitted.

  The rear seat occupant protection device 1 is provided with a reaction force airbag that is deployed between the driver seat 2 and the passenger seat 3 and restricts the movement of the central airbag 13 toward the front side of the vehicle. The reaction force airbag is a seat reaction force that is deployed from the inside in the vehicle width direction of at least one of the seat back 2a of the driver seat 2 or the seat back 3a of the passenger seat 3 (in the embodiment, the seat back 2a of the driver seat 2). The bag portion 21 is configured.

  Note that the reaction force airbag may be configured by the seat reaction force bag portion 21 that is deployed from the inside in the vehicle width direction of the seat back 3a of the passenger seat 3.

  The seat reaction force bag portion 21 is provided with a chamber 22 as reaction force means for supplementing the reaction force against the central airbag 13. The chamber 22 includes three chambers 22 that extend in the vertical direction, is provided on a surface facing the central airbag 13, and is configured to enclose gas in order to increase surface rigidity.

  For example, at the time of a frontal collision, the outer airbag 6 is deployed on the front side (toward the rear seat side) of the occupant outside the rear seat (the occupant behind the driver seat 2 and the occupant behind the passenger seat 3) The airbag 13 is deployed toward the center of the rear seat, and the outer airbag 6 receives the movement of the outer occupant to the front side, and the central airbag 13 receives the movement of the center occupant to the front side. At the same time, the seat reaction force bag portion 21 is deployed, and the support force of the central airbag is borne by the surface of the chamber 22 whose surface rigidity is increased, and the reaction force of the central airbag is received.

  For this reason, even if it is the central airbag 13 expand | deployed from the roof part 11, the movement to the front side of the passenger | crew of a center part can be received appropriately. Accordingly, it is possible to reliably receive the reaction force when the passenger in the center of the rear seat of the plurality of persons enters the central airbag 13 and appropriately protect the passenger in the rear seat.

  Since the seat reaction force bag portion 21 is deployed between the driver's seat 2 and the passenger seat 3, it is possible to obtain the required function of the front center airbag that suppresses the interference of the front seat occupant during a side collision. The seat reaction force bag portion 21 is preferably arranged at a position that covers the head of the occupant in the vehicle width direction when deployed.

  As the reaction force means, means for controlling the gas pressure, for example, a plurality of inflators can be used. By controlling the gas pressure at the time of a side collision and at the time of a front collision, for example, at the time of a side collision, the seat reaction force bag portion 21 is deployed with a single inflator to reduce the rigidity in the vehicle width direction, and at the time of a front collision, a plurality of By expanding the seat reaction force bag portion 21 with the inflator to increase the pressure in the bag, the required function of the front center airbag and the function request for compensating the reaction force against the central airbag can be made compatible.

  In the above embodiment, the three chambers 22 extending in the vertical direction have been described as examples of the chamber 22 as the reaction force means. However, the number of the chambers 22 is not limited to three, but one or two. One or four or more can be provided. Further, for example, in addition to the vertical direction (instead of the vertical direction), it is possible to provide a chamber that extends in the horizontal direction, the diagonal direction, or the like. it can.

A third embodiment of the present invention will be described with reference to FIGS.
FIG. 7 is a plan view illustrating a rear seat occupant protection device according to the third embodiment of the present invention, and FIG. 8 is a view taken along the line VIII-VIII in FIG. 7 (third embodiment of the present invention). FIG. 9 shows the appearance of the driver's seat and passenger's seat as viewed from the rear. In addition, the same code | symbol is attached | subjected to the same member as 1st Example shown in FIGS. 1-3, and the overlapping description is abbreviate | omitted.

  The rear seat occupant protection device 1 is provided with a reaction force airbag that is deployed between the driver seat 2 and the passenger seat 3 and restricts the movement of the central airbag 13 toward the front side of the vehicle. The reaction force airbag is a seat reaction force that is deployed from the inside in the vehicle width direction of at least one of the seat back 2a of the driver seat 2 or the seat back 3a of the passenger seat 3 (in the embodiment, the seat back 2a of the driver seat 2). The bag portion 25 is configured.

  In addition, as a reaction force airbag, it is also possible to comprise by the seat reaction force bag part 25 expand | deployed from the inner side of the seat back 3a of the passenger seat 3 in the vehicle width direction.

  The seat reaction force bag portion 25 is integrally formed with a pressing portion 26 as a reaction force means that supplements the reaction force against the central airbag 13. That is, the pressing portion 26 is configured to be pressed and restrained by the seat back 3a of the front passenger seat 3 that is opposed to the pressing portion 26 when deployed.

  When the seat reaction force bag portion 25 is deployed, the pressing portion 26 is pressed against the seat back 3a of the passenger seat 3, and the seat reaction force bag portion 25 is between the driver seat 2 and the passenger seat 3 (between the seat backs 2a and 3a). ), And the reaction force of the central airbag is received. It is also possible to provide the pressing part 26 and the seat reaction force bag part 25 separately.

  For this reason, even if it is the central airbag 13 expand | deployed from the roof part 11, the movement to the front side of the passenger | crew of a center part can be received appropriately. Accordingly, it is possible to reliably receive the reaction force when the passenger in the center of the rear seat of the plurality of persons enters the central airbag 13 and appropriately protect the passenger in the rear seat.

  In addition, it is also possible to use together the sheet | seat reaction force bag part 21 which has the chamber 22 shown in 2nd Example, and the press part 26 of 3rd Example as a reaction force airbag.

  Further, as the reaction force airbag, the passenger seat airbag 15 (rear reaction force bag portion 16) and the seat reaction force bag portion 21 having the chamber 22 can be used in combination. Further, as the reaction force airbag, the passenger seat airbag 15 (rear reaction force bag portion 16) and the seat reaction force bag portion 25 having the pressing portion 26 can be used in combination.

  Thereby, the seat reaction force developed from at least one of the rear reaction force bag portion 16 continuously formed in the passenger seat airbag 15 and the seat back 2a of the driver seat 2 or the seat back 3a of the passenger seat 3. The bag portion 21 (25) bears the supporting force of the central airbag 13 and receives the reaction force of the central airbag 13.

  The above-described rear-seat occupant protection device 1 can appropriately protect the occupant in the center even if the central airbag 13 is deployed from the roof portion 11, It is possible to reliably receive the reaction force when all the occupants in the rear seat, including the central occupant, enter the airbag, and to appropriately protect (restrain) the occupants in the rear seat.

  INDUSTRIAL APPLICABILITY The present invention can be used in the industrial field of a rear seat occupant protection device that deploys an airbag to protect a rear seat occupant.

DESCRIPTION OF SYMBOLS 1 Rear-seat occupant protection device 2 Driver's seat 3 Passenger seat 5 Outer airbag unit 6 Outer airbag 11 Roof portion 12 Central airbag unit 13 Central airbag 15 Passenger seat airbag 16 Rear reaction bag portion 17 Panel portions 21 and 25 Seat reaction force bag part 22 Chamber 26 Press part

Claims (8)

A central airbag mounted on the roof and deployed toward the front of the passenger in the center of the rear seat;
A rear-seat occupant protection device comprising a reaction force airbag that is deployed between a driver seat and a passenger seat and restricts the movement of the central airbag toward the front side of the vehicle. The rear-seat occupant protection device according to claim 1,
The reaction force airbag is
A rear reaction force that is formed continuously from a passenger seat airbag that is deployed on the front side of the passenger seat and that is deployed from the center of the vehicle of the passenger seat airbag to the rear side between the driver seat and the passenger seat. A rear-seat occupant protection device characterized by being a bag portion. The rear-seat occupant protection device according to claim 2,
The rear reaction force bag portion is
The rear seat is provided with a reaction force means that is disposed at a position where the passenger in the passenger seat moves obliquely forward on the driver's seat side when deployed, and supplements the reaction force against the central airbag. Crew protection device. The rear-seat occupant protection device according to claim 1,
The reaction force airbag is
A seat reaction force bag portion that unfolds from the inside in the vehicle width direction of at least one of the seat back of the driver seat or the seat back of the passenger seat;
In the seat reaction force bag portion,
A rear-seat occupant protection device, comprising a reaction force means for compensating a reaction force against the central airbag. The rear-seat occupant protection device according to claim 4,
The reaction force means is
A rear-seat occupant protection device, characterized in that the rear-seat occupant protection device is a chamber that is provided on a surface with respect to the central airbag and in which gas is enclosed to increase surface rigidity. The rear-seat occupant protection device according to claim 4,
The reaction force means is
The rear seat, wherein the rear seat is a pressing portion that is continuously formed in the seat reaction force bag portion and that is pressed against and restrained by the seat back of the driver's seat that is opposed to the seat at the time of deployment. Crew protection device. The rear-seat occupant protection device according to claim 4,
The reaction force means is
A chamber that is provided on a surface with respect to the central airbag and in which gas is enclosed to increase surface rigidity;
A rear portion, which is formed continuously with the seat reaction force bag portion and has a pressing portion restrained by being pressed against the seat back of the driver's seat or the seat back of the passenger seat facing each other when deployed. Seat occupant protection device. The rear-seat occupant protection device according to claim 1,
The reaction force airbag is
A rear reaction force that is formed continuously from a passenger seat airbag that is deployed on the front side of the passenger seat and that is deployed from the center of the vehicle of the passenger seat airbag to the rear side between the driver seat and the passenger seat. A bag part;
A reaction force bag portion that develops from the inside of at least one of the driver seat back or the passenger seat back, and the inside of at least one of the driver seat back or the passenger seat back. A rear seat occupant protection device, comprising:

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