JPH0456654A - Passenger safety device for automobile - Google Patents

Abstract

PURPOSE:To reduce a knee injury value by rotating rearward an air bag device itself when the knees of a passenger 12 at an assistant seat are moved forward when a vehicle is collided to develop an air bag and an air bag device is thrust up from below to lift up the device. CONSTITUTION:A passenger safety device l is provided with an air bag device 3 which is arranged approximately at the front of an assistant seat 2 and a bracket 4 is protruded from two end parts 3a and 3b on both sides. By superposing a flat part 5 with each bracket 4 and joining a screw 6, inserted in through- holes 5a, with through-holes 4a and 5a in a screwed-in manner, mounting members 8 each having a hollow cylindrical columnar member 7 are secured to the two side parts of the flat part 5. The mounting members 8 are engaged with reinforcing members on both sides in a car room and columnar members 7 thereof and supported by weld at a plurality of spots, four example, four spots in this figure and secured to the reinforcing members on the both sides of the interior of the car room through respective cylindrical members 9.

Description

[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD The present invention relates to an occupant safety device for a motor vehicle.

[Prior art and problems to be solved by the invention] As a conventional automobile occupant safety device, for example, FIG.
(Refer to Japanese Patent Publication No. 198547).

That is, in the figure, reference numeral 50 is a member whose left and right ends are fixed to reinforcing members (not shown) on both the left and right sides of the vehicle interior 51, 52 is an instrument panel, and 53 is a passenger seat of the instrument panel 52 (not shown). ) is an airbag device located approximately in front of the vehicle.

The airbag device 53 consists of an inflator 54 secured to an instrument panel 52, and a cover unit 55 that encloses a bag (not shown) and is secured in front of the inflator 54.

However, since the airbag device 53 is arranged at the rear of the member 50, there is a space S1 in the front-rear direction.
Requires. Furthermore, in the event of sudden braking such as a car collision, there is a risk that the passenger's knees may interfere with the air bang device &53.
It is necessary to secure a sufficient clearance S2 between the two.

SUMMARY OF THE INVENTION In view of the problems of the prior art, it is an object of the present invention to provide an automobile occupant safety device that saves space and weight in the longitudinal direction of a vehicle and reduces injuries to the knees.

[Structure of the invention]

In order to achieve the above object, the present invention provides an occupant safety device for an automobile that includes an airbag device disposed substantially in front of a passenger seat, a bracket extending from both left and right ends of the airbag device, and a bracket extending from both left and right ends of the airbag device. a mounting member in which a hollow cylindrical column member is supported on both sides of the vehicle; both left and right ends are firmly supported by reinforcing members on both left and right sides of the vehicle interior, and the indoor end portion is fitted into the hollow cylindrical column member. It is characterized by comprising a cylindrical member which is supported by a plurality of spot welds. In addition, the airbag device is arranged approximately in front of the passenger seat, and the airbag device has at least three arcuate elongated holes formed on the left and right end surfaces of the airbag device, and attachment portions are provided on both the left and right sides of the vehicle interior. The present invention is characterized by comprising a cylindrical member whose left and right ends are firmly fixed to each of the reinforcing members, and whose indoor end is rotatably screwed to the attachment part.

〔Example〕

The structure of the first embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes an automobile occupant safety device according to the present invention, and the automobile occupant safety device f1 is disposed approximately in front of the passenger seat 2, and a bracket 4.4 is stretched from both left and right ends 3a and 3b. The released airbag device 3 and the airbag device W3
A flat plate part 5 is superimposed on the brackets 4, 4, and is screwed and fixed by screws 6 inserted into through holes 4a, 4a and 5a, 5a formed respectively, and both sides of the flat plate part 5 are A mounting member 8 on which a hollow cylindrical column member 7 is supported, and reinforcing members on both left and right sides of the vehicle interior (not shown)
The left and right ends (not shown) of each are firmly fixed, and the indoor end 9a is fitted into the hollow cylindrical column member 7,
For example, here, it is composed of a cylindrical member 9 supported by four point welding SWs.

Therefore, in such a structure, when the bung lO of the airbag device 3 is deployed, an evenly distributed load is applied to the base plate 11 of the airbag device 3 due to the increase in pressure inside the bag 10, but the member 9 is applied to the front and rear central portions of the airbag device 3. Because of this arrangement, the moment around the member 9 with the member 9 at the center can be made as small as possible. Therefore, when the bang 10 is deployed as shown by the chain line in FIG. 3, the airbag device 3 does not rotate.

Furthermore, when the bag 10 is deployed, the chest 12a of the occupant 12 is
is held, but the occupant 12 itself moves slightly forward as shown by the chain line in FIG. Accordingly, the knee 13 of the occupant 12 also moves forward and pushes up the airbag W3 from below as shown by arrow A. Then, a moment is generated around the member 9, and the airbag device 3 itself rotates backward as shown by the arrow B in FIG. 1, as shown by the chain line, so that the knee injury value can be reduced.

Next, the structure of the second embodiment of the present invention will be explained using FIGS. 5 and 6. The main difference from the first embodiment of the present invention is the connection between the member 9 and the airbag device 3. The structure is different. Hereinafter, only the differences from the first embodiment will be explained, and the first embodiment will apply mutatis mutandis to the rest.

In the figure, reference numeral 20 denotes the automobile occupant safety device of the present invention,
The automobile occupant safety device 2o is arranged approximately in front of the passenger seat 2, and has at least two holes 22a and wire holes 22a formed on the same arc, formed on surfaces 21a and 21b at both left and right ends. arc-shaped long hole 22b.

22c, a flange 23 is superimposed on the wire hole 22a and long holes 22b, 22c of the airbag device 21, and the through holes 23a, 23b, 23c formed in the flange 23, respectively, are the holes 22a. and a long hole 22b.

22c, and are screwed together by screws 6 inserted therein, so that both left and right ends (not shown) are firmly fixed to reinforcing members (not shown) on both left and right sides of the vehicle interior, and the interior side end 24a is It is composed of a cylindrical member 24 welded to the flange 23.

Therefore, in such a structure, when the bag 10 of the airbag device 21 is deployed, a uniformly distributed load is applied to the base plate 11 of the airbag device 21 due to the increase in pressure inside the bag 10, but the member 24 is applied to the front and rear center portions of the airbag device 21. Since the moment around the member 24 can be made as small as possible with the member 24 at the center, the airbag device 21 does not rotate when the bag 10 is deployed. However, when the knee 13 of the occupant 12 pushes up the airbag device 21 from below as shown by arrow A, a moment is generated around the member 24, and the airbag device 21 itself rotates in the direction of arrow B, causing the knee The injury value can be reduced.

〔Effect of the invention〕

As explained above, according to the present invention, the automobile occupant safety device includes an airbag device disposed on the road surface of the passenger seat of the automobile, and brackets extending from both left and right ends of the airbag device. and a mounting member in which a hollow cylindrical column member is supported on both sides of the bracket, and a hollow cylindrical column member whose left and right ends are fixed to reinforcing members on both left and right sides of the vehicle interior, and whose indoor end is supported by the hollow cylindrical column member. It is characterized by comprising a cylindrical member that is fitted into the cylindrical member and supported by a plurality of point welds, and
An airbag device disposed on the road surface of the passenger seat, mounting portions formed by at least three long arc-shaped holes formed on both left and right end surfaces of the airbag device, and reinforcing members on both left and right sides of the vehicle interior. This structure is characterized by a cylindrical member whose left and right ends are firmly fixed, and whose indoor end is rotatably screwed to the attachment part, thereby saving space in the longitudinal direction of the vehicle. This has the practical effect of saving space and weight and reducing injury to the knee.

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, FIG. 1 is a sectional view of the main part, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is an operation of the main part of FIG. 1. Explanatory diagram, Figure 4 is IV-IV of Figure 2
5 and 6 show a second embodiment of the present invention, FIG. 5 is a sectional view of a main part corresponding to FIG. 1, and FIG. 6 is an exploded perspective view of FIG. 5. , FIG. 7 is an explanatory cross-sectional view of a conventional automobile occupant safety device. 1.20...Automobile occupant safety device, 2...
...passenger seat, 3,21...airbag device,
4... Bracket, 7... Pillar member, 8
...Mounting material, 9,24...Member 8.9 area Ki 9th

Claims (2)

[Claims] (1) An airbag device located approximately in front of the passenger seat,
A mounting member in which a bracket is extended from both left and right ends of the airbag device and hollow cylindrical pillar members are supported on both sides of the bracket, and both left and right ends are fixed to reinforcing members on both left and right sides of the vehicle interior, respectively. 1. An occupant safety device for an automobile, comprising a cylindrical member whose indoor end is fitted into the hollow cylindrical column member and supported by a plurality of point welds. (2) An airbag device located approximately in front of the passenger seat;
The airbag device has a mounting portion formed by at least three long arc-shaped holes formed on the left and right end surfaces of the airbag device, and both left and right end portions are fixed to reinforcing members on both the left and right sides of the vehicle interior, and the indoor end portion is fixed to the left and right reinforcement members respectively. An occupant safety device for an automobile, comprising a cylindrical member rotatably screwed to the attachment portion.