JP2016203697A - Occupant protection device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a head of an occupant in a variety of collision conditions of a vehicle.SOLUTION: An occupant protection device 10 for a vehicle has a shield member 12 which is electrically driven at the prediction of a collision of the vehicle 14, and deployed to the inside of a cabin of at least one window 20A, 20B, 22A, 22B and 28 of a vehicle side part 16 and a vehicle rear part 18. The occupant protection device further has a curtain airbag and a side airbag in the cabin of the shield member 12 while receiving the supply of a gas at the collision, and the shield member 12 is deployed at timing earlier than that of the expansion deployment of the airbags.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle occupant protection device.

  By operating the gas generator when detecting a side collision of the vehicle, the curtain provided on the vehicle upper side of the side door window is deployed downward to shield at least a part of the window, A structure that absorbs an impact is disclosed (see Patent Document 1).

JP-A-9-183348

  However, since the curtain according to Patent Document 1 described above is deployed after the collision is detected, it is considered that the shielding of the window by the curtain may be delayed from the desired timing depending on the condition of the side collision.

  An object of the present invention is to provide a vehicle occupant protection device capable of protecting the head of an occupant under various collision conditions in a vehicle.

  A vehicle occupant protection device according to claim 1 is electrically driven at the time of vehicle collision prediction, and is a shielding member that is deployed on the vehicle interior side of at least one of a vehicle side portion and a vehicle rear portion to shield the window. Have

  In this vehicle occupant protection device, when a vehicle collision is predicted, the shielding member is electrically driven and deployed to the vehicle interior side of the window. Therefore, when the shielding member is deployed, the collision direction, the collision position, and the strength of the collision are increased. In addition, it is difficult to be restricted by the collision condition when the vehicle actually collides. Thereafter, when the vehicle actually collides, the shielding member is interposed between the window and the occupant's head, thereby protecting the head.

  According to a second aspect of the present invention, in the vehicle occupant protection device according to the first aspect of the present invention, the vehicle has an airbag that inflates and deploys in the vehicle interior side of the shielding member that receives the supply of gas when the vehicle collides. The shielding member is deployed at a timing earlier than the inflation and deployment of the airbag.

  In this vehicle occupant protection device, since the shielding member is deployed at a timing earlier than the inflation and deployment of the airbag, interference with the shielding member during deployment of the airbag is suppressed. Further, even when the window is damaged due to the collision, a reaction force at the time of restraining the passenger by the airbag can be generated in the shielding member. Therefore, the movement of the passenger to the outside of the passenger compartment can be suppressed.

  According to a third aspect of the present invention, in the vehicle occupant protection device according to the first or second aspect, the shielding member can be deployed and stored in a normal state, and the time required for the deployment of the shielding member is the vehicle. The collision prediction time is set shorter than the normal time.

  In this vehicle occupant protection device, the window in which the shielding member is disposed can be shielded by arbitrarily deploying the shielding member at a normal time when the collision is not predicted. On the other hand, when the vehicle is predicted to collide, the window is quickly shielded by deploying the shielding member at a higher speed than normal.

  According to a fourth aspect of the present invention, in the vehicle occupant protection device according to any one of the first to third aspects, when the shielding member is determined to be unable to avoid a collision at the time of the collision prediction of the vehicle. Expand to.

  In this vehicle occupant protection device, the shielding member does not expand only when a vehicle collision is predicted, and the shielding member expands when it is determined that the predicted vehicle collision cannot be avoided. Therefore, the deployment timing of the shielding member at the time of vehicle collision prediction is immediately before the actual collision.

  According to the vehicle occupant protection device of the first aspect, it is possible to obtain an excellent effect that the occupant's head can be protected under various collision conditions in the vehicle.

  According to the vehicle occupant protection device of the second aspect, an excellent effect that the airbag can be smoothly inflated and deployed and the occupant restraint performance by the airbag can be enhanced is obtained.

  According to the vehicle occupant protection device of the third aspect, an excellent effect is obtained that the occupant's head can be more reliably protected regardless of actual collision conditions.

  According to the vehicle occupant protection device of the fourth aspect, it is possible to obtain an excellent effect that a normal view of the occupant can be secured until immediately before the collision.

In the vehicle occupant protection device according to the present embodiment, it is a side view showing a state in which the shielding member expands toward the vehicle interior side of the vehicle side window. In the vehicle occupant protection device according to the present embodiment, it is a perspective view of the vehicle rear side in the vehicle interior, showing a state in which the shielding member is deployed on the vehicle interior side of the vehicle side and vehicle rear windows. . It is a front view which shows a shielding member and its drive device typically. It is a 4-4 arrow expanded sectional view in FIG. 3 which shows a shielding member and its drive device typically. It is a side view which shows the state which the curtain airbag expanded and expanded after the expansion | deployment of a shielding member. FIG. 6 is an enlarged cross-sectional view taken along arrow 6-6 in FIG. 5 showing a state in which the curtain airbag is inflated and deployed after the shielding member is deployed. It is a side view which shows the state which the side airbag expanded and expanded after the expansion | deployment of the shielding member. FIG. 8 is an enlarged cross-sectional view taken along arrow 8-8 in FIG. 7 showing a state in which the side airbag is inflated and deployed after the shielding member is deployed.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the drawing, the arrow FR means the front side of the vehicle, the arrow UP means the upper side of the vehicle, and the arrow IN means the inner side in the vehicle width direction (the vehicle interior side). 1 and 2, the vehicle occupant protection device 10 according to this embodiment includes a shielding member 12. The shielding member (sunshade) 12 is a member that is electrically driven at the time of a collision prediction of the vehicle 14 and expands to the vehicle interior side of at least one of the vehicle side portion 16 and the vehicle rear portion 18 to shield the window. .

  The windows of the vehicle side part 16 are, for example, the windows 20A and 20B of the front door 20 and the windows 22A and 22B of the rear door 22. The windows 20A and 22A are, for example, substantially rectangular opening / closing windows. The windows 20B and 22B are, for example, substantially triangular fixed windows. For example, a side glass 23 is attached to the window 22A (FIGS. 6 and 8). Side windows (not shown) are similarly attached to the windows 20A, 20B, and 22B. The front door 20 is provided corresponding to the front seat 24, and the rear door 22 is provided corresponding to the rear seat 26. On the other hand, the window 28 of the vehicle rear portion 18 is positioned behind the vehicle behind the rear seat 26, and a rear glass (not shown) is attached thereto.

[Shielding member]
In FIG. 3, the shielding member 12 is a cloth curtain having flexibility, for example, and can be unfolded and stored in a normal state. The degree of light shielding property of the shielding member 12 can be appropriately adjusted according to the installation position of the shielding member 12. The shielding member 12 shown in FIG. 3 corresponds to the window 22 </ b> A of the rear door 22.

  The shielding member 12 is wound around the winding shaft 30 when stored, and is drawn out from the winding shaft 30 when used. The winding shaft 30 is provided around the window 22A. In the example shown in FIG. 3, the winding shaft 30 is provided on the vehicle lower side of the window 20A and the like (FIG. 1). The winding shaft 30 is biased in the winding direction of the shielding member 12 by, for example, a spring (not shown), and the shielding member 12 can be wound by the biasing force of the spring.

  For example, a resin plate 32 is provided at the tip of the shielding member 12. The plate 32 is a member that constitutes a frame of the shielding member 12 and a lid that closes an entrance (not shown) of the shielding member 12 when the shielding member 12 is retracted. For example, a steel cord 34 as a reinforcing member is embedded in the plate 32. Both ends of the steel cord 34 extend to the outside of the plate 32. Sliding members 36 are attached to both ends, respectively. The sliding member 36 slides along a rail 42 (FIG. 4) provided on the pair of columns 38 and 40.

  In FIG. 4, the rail 42 in the pillar 38 will be described as an example. The rail 42 is configured by attaching a cover 44 having a substantially U-shaped cross section to the inner surface side of the side wall portion 38A. A space 46 through which 36 passes is formed. The side wall portion 38A is formed with a slit 38B that extends in the longitudinal direction of the rail 42 and through which the steel cord 34 is passed. Further, a reinforcing member 48 made of metal, for example, is provided on the inner surface of the side wall 38 </ b> A in the rail 42. For example, the reinforcing member 48 has a U-shaped cross section. The reinforcing member 48 is formed with a slit 48B through which the steel cord 34 is passed. The position of the slit 48B and the position of the slit 38B of the side wall 38A coincide with each other, and the steel cord 34 moves in the slits 38B and 48B when the shielding member 12 is expanded and stored. Yes. The lengths of the slits 38B and 48B are set according to the moving range of the steel cord 34.

  3 and 4, push-pull type cables 50 (both push and pull cables) are attached to the sliding members 36, respectively. The cable 50 is driven by, for example, an electric motor 52 that operates electrically, and is pushed out when the shielding member 12 is deployed, and pulled back when the shielding member 12 is stored.

  In FIG. 1, the main shielding member 12A in the shielding member 12 corresponds to the windows 20A and 22A, and expands upward from the storage state. On the other hand, the auxiliary shielding member 12B in the shielding member 12 corresponds to the windows 20B and 22B, and is developed from the retracted state in the vehicle front-rear direction. Specifically, the sub-shielding member 12B is formed in, for example, a substantially triangular shape corresponding to the windows 20B and 22B, and a drawer member 54 is attached to the tip (the front end in the case of the window 20B, the rear end in the case of the window 22B). . The drawer member 54 is electrically driven and moved in the vehicle front-rear direction, so that the auxiliary shielding member 12B can be deployed and stored.

[Airbag]
The vehicle occupant protection device 10 according to the present embodiment has an airbag that inflates and deploys in the vehicle interior side of the deployed shielding member 12 upon receipt of gas supply when the vehicle 14 collides. The airbag is, for example, a curtain airbag 56 (FIGS. 5 and 6) or side airbags 58 and 59 (FIGS. 7 and 8).

  5 and 6, a curtain airbag 56 is provided as an airbag. The curtain airbag 56 is provided along the roof side rail 60 and is normally stored in a roof trim 62 that is an interior material. The roof trim 62 is provided on the lower surface of the roof 64 of the vehicle 14, and a curtain airbag 56 is housed between the end of the roof trim 62 in the vehicle width direction and the roof side rail 60. The curtain airbag 56 is supplied with gas from the inflator 66 when the vehicle 14 collides and rolls over, and the vehicle interior side of the windows 20A and 20B of the front door 20 and the windows 22A and 22B of the rear door 22 is provided. Specifically, the deployed shielding member 12 is further inflated and deployed in a curtain shape on the vehicle interior side. The curtain airbag 56 corresponds to the head 74H of the occupant 74 in the front seat 24 and the head 76H of the occupant 76 in the rear seat 26, respectively.

  7 and 8, side airbags 58 and 59 are provided as airbags. The side airbag 58 of the front seat 24 is disposed in a folded state on the front door 20 or the front seat 24 and receives a gas supply from an inflator (not shown) when the vehicle 14 collides with the occupant 74 and the front seat 24. It is a bag body which expands and deploys between the partial doors 20. Further, the side airbag 59 of the rear seat 26 is disposed in a folded state on the rear door 22 or the rear seat 26, and receives a gas supply from an inflator (not shown) when the vehicle 14 collides with the occupant 76. It is a bag body that expands and deploys between the rear door 22. The side airbags 58 and 59 are inflated and deployed in correspondence with, for example, portions of the occupants 74 and 76 from the waist (not shown) to the heads 74H and 76H.

  A curtain airbag corresponding to the window 28 of the vehicle rear portion 18 may be further provided (not shown).

[Collision prediction]
The collision prediction of the vehicle 14 is to determine a state where the possibility of occurrence of a collision is increased by a pre-crash sensor or the like (not shown). The collision mode for deploying the shielding member 12 is, for example, a side collision or a rear collision. The timing at which the shielding member 12 is deployed may be not only when the vehicle 14 is predicted to collide, but also when it is determined that collision avoidance is impossible at the time of the collision prediction.

  The time required for deploying the shielding member 12 is set to be shorter when the vehicle 14 predicts the collision than when it is normal. As an example, if the time required to deploy the shielding member 12 is about 0.6 seconds in the normal state, it is about 0.3 seconds in the collision prediction time. If the time from the collision prediction to the actual collision is, for example, about 1.5 seconds, the deployment of the shielding member 12 can be completed before the actual collision.

  The shielding member 12 is deployed at a timing earlier than the inflation and deployment of the curtain airbag 56 and the side airbags 58 and 59. Specifically, before the vehicle 14 actually collides and an operation signal is issued to the inflator 66 and the like, the deployment of the shielding member 12 is started. The deployment of the shielding member 12 is preferably completed before the curtain airbag 56 and the side airbags 58 and 59 are inflated and deployed. The expansion and expansion may be started before the expansion of is completed.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. 1 and 2, in the vehicle occupant protection device 10 according to the present embodiment, the shielding member 12 is arranged by arbitrarily deploying each shielding member 12 in a normal time when the collision is not predicted. The windows 20A, 20B, 22A, 22B (FIG. 1) and the window 28 (FIG. 2) can be appropriately shielded.

  When the collision of the vehicle 14 is predicted, the shielding member 12 that has not been retracted or unfolded is electrically driven, and the windows 20A, 20B, 22A, 22B (FIG. 1) and the window 28 (FIG. 2) are on the vehicle interior side. Expand to. At this time, the shielding member 12 is deployed at a higher speed than normal, and the window 20A and the like are shielded quickly. Since the deployment of the shielding member 12 is completed before the vehicle 14 is deformed due to an actual collision, the vehicle 14 actually collides such as the collision direction, the collision position, and the strength of the collision when the shielding member 12 is deployed. It is difficult to be restricted by the collision conditions. When the curtain airbag 56 and the side airbags 58 and 59 are not provided, when the vehicle 14 actually collides thereafter, the shielding member 12 is, for example, the window 20A, 20B, 22A, 22B and the head of the occupants 74, 76. By interposing between the portions 74H and 76H, the head portions 74H and 76H are protected. Therefore, the heads 74H and 76H of the passengers 74 and 76 can be protected under various collision conditions in the vehicle 14.

  As shown in FIG. 4, the steel cord 34 is embedded in the plate 32 of the shielding member 12, and the rail 42 is reinforced by the reinforcing member 48. Therefore, even if the load of the heads 74H and 76H of the passengers 74 and 76, for example, acts on the outer side of the passenger compartment, the tension of the shielding member 12 is maintained. Thereby, the reaction force with respect to the heads 74H and 76H of the passengers 74 and 76 can be generated.

  Next, the operation when the curtain airbag 56 is provided as an airbag will be described. As shown in FIGS. 5 and 6, in this case, the shielding member 12 is deployed at a timing earlier than the inflation and deployment of the curtain airbag 56. Therefore, interference with the shielding member 12 when the curtain airbag 56 is deployed is suppressed. Further, even when the side glass 23 of the windows 20A, 20B, 22A, and 22B is broken due to the collision, a reaction force at the time of restraining the passenger by the curtain airbag 56 can be generated in the shielding member 12. Therefore, movement of passengers 74 and 76 to the outside of the passenger compartment, for example, release outside the vehicle, can be suppressed.

  The operation when side airbags 58 and 59 are provided as airbags will be described. As shown in FIGS. 7 and 8, in this case, the shielding member 12 is deployed at a timing earlier than the inflation and deployment of the side airbags 58 and 59. Therefore, interference with the shielding member 12 when the side airbags 58 and 59 are deployed is suppressed. Further, even when the side glass 23 of the windows 20A, 20B, 22A, and 22B is broken due to a collision, a reaction force at the time of restraining the passenger by the side airbags 58 and 59 can be generated in the shielding member 12. Therefore, movement of passengers 74 and 76 to the outside of the passenger compartment, for example, release outside the vehicle, can be suppressed.

  Thus, according to this embodiment, the curtain airbag 56 and the side airbags 58 and 59 can be smoothly inflated and deployed by deploying the shielding member 12 at the time of collision prediction. Moreover, the passenger | crew restraint performance by the curtain airbag 56 and the side airbags 58 and 59 can be improved. Further, the heads 74H and 76H of the occupants 74 and 76 can be more reliably protected regardless of actual collision conditions.

  Note that the shielding member 12 may be deployed when it is determined that the predicted collision of the vehicle 14 cannot be avoided. In this case, since the shielding member 12 is not deployed only by predicting the collision of the vehicle 14, the deployment timing of the shielding member 12 is immediately before the actual collision. Thereby, since the normal field of view of the occupants 74 and 76 can be ensured until just before the collision, it is easy to perform the collision avoidance operation when the occupant 74 is a driver.

  Further, at the time of collision prediction, all the shielding members 12 may be deployed simultaneously, or some shielding members 12 may be deployed according to the predicted collision mode. When the collision is predicted but the collision does not occur (the collision is avoided), the deployed shielding member 12 may be stored.

[Other Embodiments]
As mentioned above, although an example of embodiment of this invention was demonstrated, embodiment of this invention is not limited above, In addition to the above, in a range which does not deviate from the main point, it can implement variously. Of course there is.

  Although the curtain airbag 56 and the side airbags 58 and 59 are inflated and deployed after the shielding member 12 is deployed on the vehicle interior side of the windows 20A, 20B, 22A, and 22B of the vehicle side portion 16, It is good also as a structure which does not provide a side airbag.

  Moreover, it is good also as a structure which provides both the curtain airbag 56 and the side airbags 58 and 59. FIG.

  An air bag corresponding to the window 28 (not shown) may be provided in the case of a vehicle type in which the distance between the window 28 at the rear of the vehicle and the rear seat 26 is short.

  Although the electric motor 52 has been described as means for electrically driving the shielding member 12, various electric actuators such as an electric cylinder and a linear motor may be used.

  Although the shielding member 12 is used for both the normal time and the collision prediction time, a normal shielding member (not shown) may be provided separately. In this case, since the shielding member 12 used at the time of collision prediction is not used as a sunshade at a normal time, it does not have to have a light shielding property. In addition, although the main shielding member 12A and the sub shielding member 12B are provided as the shielding members 12 corresponding to the front door 20 and the rear door 22, respectively, the shielding member 12 may not be divided in this way. Further, as the shielding member 12 of the front seat 24, a member such as a mesh through which visible light easily passes may be used.

DESCRIPTION OF SYMBOLS 10 Vehicle occupant protection device 12 Shield member 14 Vehicle 16 Vehicle side portion 18 Vehicle rear portion 20A Front door window 20B Front door window 22A Rear door window 22B Rear door window 28 Rear vehicle window 56 Curtain airbag ( Airbag)
58 Front seat side airbag (airbag)
59 Side airbag for rear seat (airbag)
74 Front Seat Crew 74H Front Seat Crew Head 76 Rear Seat Crew 76H Rear Seat Crew Head

Claims (4)

  A vehicle occupant protection device having a shielding member that is electrically driven at the time of a vehicle collision prediction and expands to a vehicle interior side of at least one of a vehicle side portion and a vehicle rear portion to shield the window. Receiving an air supply at the time of a collision of the vehicle, and having an airbag that is inflated and deployed on a vehicle interior side of the deployed shielding member;
The vehicle occupant protection device according to claim 1, wherein the shielding member is deployed at a timing earlier than the inflation and deployment of the airbag. The shielding member can be deployed and stored in a normal state,
3. The vehicle occupant protection device according to claim 1, wherein a time required for deploying the shielding member is set to be shorter at the time of collision prediction of the vehicle than at a normal time.   The vehicle occupant protection device according to any one of claims 1 to 3, wherein the shielding member is deployed when it is determined that collision avoidance is impossible at the time of collision prediction of the vehicle.

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