JP5771411B2 - Crew protection device - Google Patents

Description

  The present invention relates to an occupant protection device for protecting an occupant from an impact force at the time of a vehicle collision, and more particularly to an occupant protection device in which an airbag is provided in a seat.

  Conventionally, this type of occupant protection device includes an airbag provided on the vehicle side wall side of a seat, and when an impact force acts on the side of the vehicle such as a vehicle collision, the airbag is deployed to There has been known a technique in which a passenger seated on a seat is moved toward the center in the vehicle width direction by pushing up a seat cushion on the side wall (see, for example, Patent Document 1).

JP 2003-237522 A

  In the occupant protection device, the airbag is deployed to lift the seat cushion. Since the seat cushion is made of a soft material such as urethane foam, even if the airbag is deployed, the airbag deployment force does not act on only part of the surface of the seat cushion, and the passenger sits on the seat. May not be reliably moved toward the center in the vehicle width direction.

  An object of the present invention is to provide an occupant protection device that can reliably move an occupant toward the center in the vehicle width direction by a force developed by an airbag.

In order to achieve the above object, the present invention includes an airbag provided on the outside in the vehicle width direction inside the seat, and when the impact force acts on the vehicle, the seat occupant is developed by deploying the airbag. An occupant protection device in which a side surface is deformed and an occupant seated on the seat is moved toward the center in the vehicle width direction. A vehicle width direction outer side moves toward the vehicle occupant side direction with respect to the vehicle width direction central portion side by deploying the airbag, and the passenger seated on the seat is moved toward the vehicle width direction central portion side. An occupant moving plate that moves to the vehicle width direction, and the occupant moving plate is a bent portion that can be bent in the vehicle width direction outer side with respect to the vehicle width direction center side, or the vehicle width direction outer side centering on the vehicle width direction center side. Is supported rotatably The has a support shaft.

  Thereby, when the front-end | tip of the airbag which expand | deploys contacts the receiving part of a passenger | crew moving board, a passenger | crew moving board will move a vehicle width direction outer side to the passenger | crew side direction with respect to the vehicle width direction center part side of a passenger | crew moving board. For this reason, the force that the airbag deploys is converted into a force that moves the occupant seated on the seat via the occupant moving plate toward the center in the vehicle width direction.

The invention according to claim 2 is characterized in that the receiving portion is formed in a concave shape capable of receiving a tip of the airbag to be deployed.
Further, in the invention according to claim 3, the occupant moving plate is configured such that when the force developed by the airbag is transmitted to the receiving portion, the receiving portion moves in the occupant side direction of the seat, The occupant seated on the seat is moved toward the center in the vehicle width direction.
Further, the invention described in claim 4 is characterized in that the occupant moving plate is provided inside a side support disposed on a side portion of the seat.
In the invention according to claim 5 , the occupant moving plate is characterized in that the end portion on the vehicle width direction center portion side is located at the end portion of the side support on the vehicle width direction center portion side.
Further, the invention described in claim 6 is characterized in that the occupant moving plate is positioned below the occupant on which the end of the vehicle width direction central portion is seated.

  According to the present invention, the force that the airbag deploys can be converted into the force that moves the occupant seated on the seat via the occupant movement plate to the center in the vehicle width direction. This makes it possible to reliably move the occupant seated on the seat to the center in the vehicle width direction.

1 is a schematic view of an occupant protection device showing a first embodiment of the present invention. It is the schematic of the passenger | crew protection apparatus which shows the state which the airbag expand | deployed. It is the schematic of the passenger | crew protection apparatus which shows 2nd Embodiment of this invention. It is the schematic of the passenger | crew protection apparatus which shows 3rd Embodiment of this invention. It is the schematic of the passenger | crew protection apparatus which shows the state which the airbag expand | deployed. It is the schematic of the passenger | crew protection apparatus which shows another example. It is the schematic of the passenger | crew protection apparatus which shows the state which the airbag expanded in the other example.

  1 and 2 show a first embodiment of the present invention.

  The occupant protection device of the present invention is applied to the seat 10 of the vehicle 1 shown in FIG.

  The seat 10 is provided so that the occupant M is seated thereon, the seat cushion 12 is provided so as to extend upward from the rear end side of the seat cushion 11, and the seat back 12 for receiving the back portion of the occupant M; And a headrest 13 provided at the upper end for receiving the head of the occupant M. On both sides of the seat cushion 11 and the seat back 12 in the vehicle width direction, side supports 11a and 12a for restricting movement of the occupant M seated on the seat 10 in the vehicle width direction are provided.

  The occupant protection device 20 is embedded in a cushion material 11b in the side support 11a on the side wall 1a side of the vehicle 1 of the seat cushion 11. The occupant protection device 20 includes an airbag 21, an inflator 22 for deploying the airbag 21, and an end portion on the side wall 1 a side in the vehicle width direction centering on an end portion on the vehicle width direction center portion side. And an occupant moving plate 23 for moving the occupant M seated on the seat to the center in the vehicle width direction.

  The airbag 21 is made of a bag-like member made of high-strength and high-heat-resistant fibers, and is configured to expand toward the surface (upward) of the occupant M of the seat cushion 11.

  The inflator 22 ignites gunpowder to generate gas or releases high-pressure gas in the pressure vessel when an impact force greater than a predetermined level is detected by an impact detection sensor (not shown) provided on the side of the vehicle 1. It is something to let you. The gas released from the inflator 22 is configured to be supplied to the airbag 21.

  The occupant moving plate 23 is a plate-like member made of metal or hard resin, and is formed so as to extend at least the rear side of the side support 11a in the front-rear direction. The passenger movement plate 23 is provided above the airbag 21 and the inflator 22. On the lower surface of the occupant movement plate 23 on the side wall 1a side in the vehicle width direction, a receiving portion 23a capable of receiving the distal end portion of the airbag 21 to be deployed is provided. The receiving portion 23a is formed in a concave shape that is gently recessed so that the tip of the airbag 21 to be deployed is guided. The occupant movement plate 23 has an end portion on the vehicle width direction center portion side located at an end portion on the vehicle width direction center portion side of the side support 11a.

  In the occupant protection device configured as described above, when a predetermined or higher impact force acts on the side surface of the vehicle 1 from the side, high-pressure gas is supplied from the inflator 22 toward the airbag 21, and the airbag 21 is Be expanded.

  At this time, as shown in FIG. 2, the airbag 21 comes into contact with the receiving portion 23 a of the occupant moving plate 23 and pushes the vehicle width direction side wall 1 a side of the occupant moving plate 23 upward. The occupant moving plate 23 rotates so that the end on the side in the vehicle width direction side 1a moves upward about the end on the side in the center in the vehicle width direction. The rotating occupant moving plate 23 is disposed laterally on the waist of the occupant M seated on the seat 10 at the end on the side in the vehicle width direction side wall 1a via a cushion member 11b in the side support 11a and a seat cover (not shown) covering the cushion member. Contact from. As a result, the occupant M seated on the seat 10 is moved toward the center in the vehicle width direction by the occupant moving plate 23.

  As described above, according to the occupant protection device of the present embodiment, the receiving portion 23a that receives the force that the airbag 21 deploys is provided on the end portion side on the outer side in the vehicle width direction, and the airbag 21 is deployed to expand the vehicle width. An occupant moving plate 23 is provided that moves the occupant M seated on the seat 10 toward the vehicle width direction center portion side by moving the vehicle width direction outer side toward the occupant M side direction of the seat 10 with respect to the direction center portion side. As a result, the force that the airbag 21 deploys can be converted into a force that moves the occupant M seated on the seat 10 via the occupant moving plate 23 toward the center in the vehicle width direction. The occupant M seated on the seat 10 can be reliably moved toward the center in the vehicle width direction by the force to be applied.

  Moreover, the receiving part 23a is formed in the concave shape which can receive the front-end | tip of the airbag 21 to expand | deploy. As a result, the leading end of the airbag 21 to be deployed can be reliably brought into contact with the receiving portion 23a, so that the occupant M seated on the seat 10 can be moved more reliably toward the center in the vehicle width direction.

  The occupant moving plate 23 is provided inside the side support 11a. Thereby, since the passenger | crew M can be moved to the vehicle width direction center part side by making the passenger | crew movement board 23 contact the side part of the passenger | crew M seated on the seat 10 from the side, the attitude | position of the passenger | crew M is changed. The occupant M can be pushed out toward the center in the vehicle width direction without any problems.

  Moreover, the passenger | crew movement board 23 is located in the edge part by the side of the vehicle width direction center part side of the side support 11a. Thereby, for example, it becomes possible to support the vehicle width direction center part end side of the occupant movement plate 23 between the central part of the seat cushion 11 and the side support 11a, and the occupant movement is ensured by the deploying airbag 21. By rotating the plate 23, the occupant M seated on the seat 10 can be more reliably moved to the center in the vehicle width direction.

  FIG. 3 shows a second embodiment of the present invention. In addition, the same code | symbol is attached | subjected and shown to the component similar to the said embodiment.

  In this occupant protection device 20, a receiving portion 24a similar to that in the first embodiment is provided on the side wall 1a side in the vehicle width direction, and an end portion in the vehicle width direction center portion side is provided on the frame 11c of the seat cushion 11 via a support shaft 24b. And an occupant moving plate 24 supported rotatably.

  In the occupant protection device configured as described above, when the airbag 21 is deployed, the occupant movement plate 24 is moved so that the end portion on the side wall 1a side in the vehicle width direction moves upward about the support shaft 24b. Rotate. As in the first embodiment, the rotating occupant movement plate 24 comes into contact with the waist of the occupant M seated on the seat 10 from the side at the end on the side wall 1a side in the vehicle width direction. As a result, the occupant M seated on the seat 10 is moved toward the center in the vehicle width direction by the occupant moving plate 24.

  Thus, according to the occupant protection device of the present embodiment, as in the first embodiment, the force developed by the airbag 21 is applied to the occupant M seated on the seat 10 via the occupant moving plate 24 in the vehicle width direction. Since it can convert into the force moved to the center part side, it becomes possible to move the passenger | crew M seated on the seat | sheet 10 to the vehicle width direction center part side reliably with the force which the airbag 21 expand | deploys.

  The occupant moving plate 24 has a support shaft 24b that is rotatable in the vehicle width direction outer side with respect to the vehicle width direction center portion side. As a result, the occupant movement plate 24 can be reliably rotated by the airbag 21 that is deployed, so that the occupant M seated on the seat 10 can be more reliably moved toward the center in the vehicle width direction.

  4 and 5 show a third embodiment of the present invention. In addition, the same code | symbol is attached | subjected and shown to the component similar to the said embodiment.

  This occupant protection device 20 has a receiving portion 25a similar to that of the first embodiment provided on the side wall 1a side in the vehicle width direction, and an occupant located below the seated occupant M whose end on the center side in the vehicle width direction is seated. A moving plate 25 is provided.

  In the occupant protection device configured as described above, when the airbag 21 is deployed, the occupant moving plate 25 has an end on the side wall 1a side in the vehicle width direction centering on an end on the center side in the vehicle width direction. Rotate to move upward. The rotating occupant moving plate 25 lifts the vehicle width direction side wall 1a side of the occupant M seated on the seat 10 via the cushion material 11b and a seat cover (not shown) covering the cushion material 11b. As a result, the occupant M seated on the seat 10 is moved to the vehicle width direction central portion side so as to be tilted by the occupant moving plate 25 to the vehicle width direction central portion side.

  Thus, according to the occupant protection device of the present embodiment, as in the above-described embodiment, the force that the airbag 21 deploys is applied to the occupant M seated on the seat 10 via the occupant moving plate 23 in the center in the vehicle width direction. Since the force can be converted to the force to be moved to the portion side, the occupant M seated on the seat 10 can be reliably moved to the vehicle width direction center portion side by the force that the airbag 21 deploys.

  Moreover, the passenger | crew moving board 25 located in the downward direction of the passenger | crew M who seated the edge part of the vehicle width direction center part side is provided. As a result, when the airbag 21 is deployed, the occupant M seated on the seat 10 can be moved to the vehicle width direction center portion side so as to be tilted to the vehicle width direction center portion side by the occupant moving plate 25. It is possible to move the occupant M toward the center in the vehicle width direction.

  In the above embodiment, the occupant protection device is provided in the seat cushion 11. However, as shown in FIGS. 6 and 7, for example, the first to the first occupant protection devices may be provided in the seat back 12. As in the third embodiment, the occupant M seated on the seat 10 can be moved toward the center in the vehicle width direction by the force developed by the airbag 21.

  Moreover, in the said 2nd Embodiment, although the passenger | crew movement board 24 supported by the flame | frame 11c of the seat cushion 11 via the support shaft 24b was shown, for example, instead of the support shaft 24b, by the force which the airbag 21 expand | deploys The occupant moving plate 24 provided with a bendable bending portion may be fixed to the frame 11c, and the occupant moving plate 24 may be rotated around the bent portion when the airbag 21 is deployed.

  DESCRIPTION OF SYMBOLS 10 ... Seat, 11 ... Seat cushion, 11a ... Side support, 11c ... Frame, 12 ... Seat back, 12a ... Side support, 20 ... Passenger protection device, 21 ... Air bag, 23 ... Passenger movement board, 23a ... Receiving part, 24 ... Passenger moving plate, 24a ... receiving portion, 24b ... spindle, 25 ... occupant moving plate.

Claims (6)

An airbag provided inside the seat in the vehicle width direction is provided, and when an impact force acts on the vehicle, the seat is deformed on the passenger side of the seat by deploying the airbag and seated on the seat In the occupant protection device that moves the occupant toward the center in the vehicle width direction,
A receiving portion for receiving a force for deploying the airbag is provided on an end portion on the outer side in the vehicle width direction, and when the airbag is deployed, an outer side in the vehicle width direction with respect to a center portion in the vehicle width direction is An occupant moving plate for moving the occupant seated on the seat by moving in the lateral direction toward the center in the vehicle width direction ;
The occupant moving plate is a bent portion that can be bent in the vehicle width direction outer side with respect to the vehicle width direction central portion side, or a support shaft that is rotatably supported on the vehicle width direction outer side around the vehicle width direction central portion side. An occupant protection device characterized by comprising: The occupant protection device according to claim 1, wherein the receiving portion is formed in a concave shape capable of receiving a front end of the airbag to be deployed. When the force developed by the airbag is transmitted to the receiving portion, the occupant moving plate moves the occupant seated on the seat in the center in the vehicle width direction by moving the receiving portion toward the occupant side of the seat. The occupant protection device according to claim 2, wherein the occupant protection device is moved to the section side. The occupant protection device according to any one of claims 1 to 3 , wherein the occupant moving plate is provided inside a side support disposed on a side portion of the seat. 5. The occupant protection device according to claim 4, wherein an end of the occupant moving plate at a vehicle width direction center portion side is positioned at an end of the side support in the vehicle width direction center portion side. The occupant protection device according to any one of claims 1 to 3 , wherein the occupant moving plate is positioned below an occupant seated at an end on a vehicle width direction center portion side.

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