JP6938896B2 - Crew restraint device - Google Patents

Description

The present invention relates to a occupant restraint device for restraining an occupant's head in an emergency such as a collision of a vehicle such as an automobile, and particularly has a occupant restraint device having a deployable body that expands from above the occupant to at least in front of the head. Regarding.

As a occupant restraint device that deploys from above the occupant to at least the front of the occupant to restrain the occupant's head in the event of a vehicle collision, Patent Document 1 states that the occupant's upper body is surrounded from the ceiling of the vehicle to the front and left and right sides. A tube-type cushion that expands and expands is described in. The plan view shape of this tube-shaped cushion is U-shaped.

Patent Documents 2 and 3 describe an airbag module having a U-shaped plan view that expands and expands downward from the ceiling of the vehicle.

Patent Document 4 describes an occupant restraint device having a frame attached to the upper part of the seat back and projecting upward of the occupant, and an inflatable body that expands and expands downward from the frame.

Korean Patent Publication KR20120019622 (A) International Publication WO2012 / 144748 A2 German Patent Publication No. 2628815 UK Patent Gazette 1460855

In the occupant restraint devices of Patent Documents 1 to 4, the occupant's field of vision is obstructed because the inflated tube-type cushion, the airbag module, or the inflatable body surrounds the front and the left and right of the occupant's head.

An object of the present invention is to provide an occupant restraint device having a deployable body that can be deployed from above the occupant to at least in front of the head, and the occupant can see the front in the unfolded state. do.

The occupant restraint device of the present invention is a occupant restraint device having a deployable body that can be deployed at least in front of the occupant's head. It is characterized by being.

In one aspect of the invention, the front visible portion comprises an opening, a transparent body or a mesh provided in the deployable body.

In one aspect of the present invention, the deployable body is connected to a first chamber that expands from above to downward in front of the center of the occupant's face, and a right panel that is connected to the first chamber and deploys to the right side of the occupant's head. And a left panel connected to the first chamber and deployed on the left side of the occupant's head, and the front visible portion is provided on the right panel and the left panel, respectively.

In one aspect of the invention, the lateral width of the first chamber is smaller than the width of the occupant's head.

In one aspect of the invention, the deployable body has a second chamber that communicates with the lower end of the first chamber and has the lower sides of the right and left panels connected.

In the occupant restraint device of the present invention, when the deployable body is deployed, the occupant can see the front through the front visible portion provided on the deployable body.

In one aspect of the invention, the deployable body comprises a first chamber that expands from above to downward in front of the center of the occupant's head, and right and left panels connected to the first chamber. This deployable body rapidly expands and deploys even if the output of the inflator is small.

By making the left-right width of the first chamber smaller than the width of the occupant's head, the front visible portion of the left panel and the right panel can be aligned with the position of the occupant's eyes.

In one aspect of the present invention, a second chamber connected to the first chamber is provided along the lower side of the deployable body. By providing this second chamber, the tension applied to the expanded and expanded left panel and right panel is increased.

By locating this second chamber above the occupant's shoulders and below the chin, the occupant's head is received by the first chamber and the left and right panels.

It is a side view of the automobile interior provided with the occupant restraint device which concerns on embodiment. It is a perspective view of the occupant restraint device which concerns on embodiment. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. It is a perspective view of the upper part of a seat bag which shows another embodiment.

Hereinafter, embodiments will be described with reference to the drawings. 1 to 3 show the first embodiment, and FIG. 4 shows the second embodiment.

In the following description, the left / right, front / rear, and top / bottom correspond to the left / right, front / rear, and top / bottom of the vehicle equipped with the occupant restraint device.

As shown in FIG. 1, the occupant restraint device 1 is installed on the ceiling portion 2 of the automobile. The occupant is seated in seat 3. The occupant restraint device 1 includes a deployable body 10 that deploys downward from the ceiling portion 2 and surrounds the front and left and right sides of the occupant's head H, and an inflator 4 for deploying the deployable body 10. ing.

As shown in FIGS. It has an extending second chambers 12 and 13, a left panel 14 and a right panel 15.

The inside of the first chamber 11 and the inside of the second chambers 12 and 13 communicate with each other. The upper part of the first chamber 11 extends rearwardly, and the inflator 4 is connected to the end thereof. The second chamber 12 extends from the lower end of the first chamber 11 to the left side, and the second chamber 13 extends from the lower end of the first chamber 11 to the right side.

The left panel 14 is connected to the first chamber 11 and the second chamber 12, and extends further rearward. The right panel 15 is connected to the first chamber 11 and the second chamber 13, and extends further rearward.

The front sides of the left panel 14 and the right panel 15 are connected to the first chamber 11 by suturing or the like. The front portion of the lower side of the left panel 14 and the right panel 15 is connected to the second chambers 12 and 13 by suturing or the like. The rear portion of the lower side of the left panel 14 and the right panel 15 is inclined so as to be upward toward the rear. The rear ends of the left panel 14 and the right panel 15 are aligned, but may be separated to the left and right.

The upper sides of the left panel 14 and the right panel 15 are connected to the ceiling portion 2 or the case (not shown) of the occupant restraint device provided on the ceiling portion 2. The inflator 4 is fixed to the case. The deployable body 10 is folded and housed in the case. The case opens downward and is covered by a roof garnish (not shown). The roof garnish has a tear line.

The front portion of the left panel 14 is provided with an opening 16 for the occupant to visually recognize the front, and the front portion of the right panel 15 is provided with an opening 17 for the occupant to visually recognize the front. The openings 16 and 17 are provided at two apart from each other at the top and bottom, but may be provided at one or three or more. When the deployable body 10 is fully deployed, the upper openings 16 and 17 are located at the same height as each other, and the lower openings 16 and 17 are also located at the same height as each other. The distance between the left and right openings 16 and 17 is preferably about the same as the distance between the left and right eyes of the occupant. Further, the left-right width of the first chamber 11 is preferably smaller than the width of the occupant's head, and particularly preferably smaller than the distance between the left and right openings 16 and 17.

When a vehicle equipped with the occupant restraint device 1 configured in this way collides, the inflator 4 operates, and the deployable body 10 breaks through the tear line of the roof garnish and deploys downward from the ceiling portion 2. The first chamber 11 expands and expands from above to below in the center front of the head H. The second chambers 12 and 13 expand and expand from the lower end of the first chamber 11 to the left side and the right side, respectively. In the deployed state, the second chambers 12 and 13 are preferably located lower than the occupant's jaw and higher than the shoulder.

As the first and second chambers 11 to 13 expand and expand, the left panel 14 expands from the left front to the left side of the head H, and the right panel 15 expands from the right front to the right side of the head H. The occupant head H is restrained by the deployable body 10 thus deployed. With the deployable body 10 deployed, the occupant can see ahead through at least some of the openings 16 and 17.

In the above embodiment, the deployable body 10 includes the second chambers 12 and 13, and tension is applied to the deployable panels 14 and 15. However, the second chambers 12 and 13 may be omitted. Further, the lengths of the second chambers 12 and 13 may be shorter or longer than shown in the drawing.

In the above embodiment, openings 16 and 17 are provided as front visible portions, but a transparent film or a mesh capable of seeing through the front may be provided in the openings 16 and 17. Further, at least the front portion of the panels 14 and 15 may be formed of a transparent sheet or mesh, and at least the entire front portion may be a front visible portion.

In the above embodiment, the deployable body 10 is deployed downward from the ceiling portion 2. As shown in FIG. 4, a bracket 20 is attached to the seat back 3b of the seat 3, and an occupant restraint device is attached to the bracket 20. It may be installed so that the deployable body deploys downward from the bracket 20. In this embodiment, the bracket 20 has a rising portion 21 that rises upward from the seat back 3b and a protruding portion 22 that projects forward from the upper end of the rising portion 21. The overhanging portion 22 is located above the occupant's head.

The occupant restraint device of the present invention can be applied to any of the driver's seat, the passenger seat, and the rear seat. It can also be applied to various passenger seats such as bus passenger seats.

The occupant restraint device of the present invention is preferably installed in an automobile together with a driver's seat, a passenger seat, or a rear seat airbag device that restrains the upper body of an occupant.

1 Crew restraint device 10 Deployment unit 11 1st chamber 12,13 2nd chamber 14 Left panel 15 Right panel 16,17 Opening 20 Bracket

Claims (4)

An occupant restraint system having a deployable deployable body from above the passenger to at least the front of the head,
The deployable body is
The first chamber, which expands from the top to the bottom in front of the center of the occupant's face,
The right panel, which is connected to the first chamber and expands to the right side of the occupant's head,
The left panel, which is connected to the first chamber and expands to the left side of the occupant's head,
Is equipped with
An occupant restraint device characterized in that front visible portions that allow the occupant to look forward in the deployed completed state are provided on the right panel and the left panel, respectively. The occupant restraint device according to claim 1 , wherein the left-right width of the first chamber is smaller than the width of the occupant's head. The occupant restraint device according to claim 1 or 2 , wherein the deployable body has a second chamber communicating with the lower end of the first chamber and connecting the lower sides of the right panel and the left panel. Crew restraint device. The occupant restraint device according to claim 3 , wherein the second chamber expands and deploys above the shoulders of the occupants and below the chin.

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