JPH06144148A - Occupant protective device for vehicle - Google Patents

Abstract

PURPOSE:To provide an occupant protective device of a vehicle having a simple structure and a low production cost. CONSTITUTION:When an automobile has a side collision, an occupant hits a gas bag 22. The gas pressure in the gas bag 22 rises, a relief valve 24 is pressed by the gas pressure and opened, and the gas in the gas bag 22 flows to the outside of the gas bag 22. The shock generated when the occupant hits the gas bag 22 is damped. The gas bag 22 is filled with gas in advance, and the gas bag 22 is not required to be deployed at the time of a side collision. A large-capacity bag can be arranged in a wide area inside a door, and the occupant can be thoroughly protected regardless of the posture of the occupant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas bag device for protecting an occupant when a vehicle is subjected to a side collision.

[0002]

2. Description of the Related Art In order to prevent an occupant from colliding with a vehicle inner side member such as a door at the time of a side collision (hereinafter referred to as a side collision), an airbag device may be provided on the door. When the vehicle receives a side collision, the side collision airbag device is activated to deploy the airbag. In order to detect this side collision, the sensor detects the lateral acceleration of the vehicle, and when this acceleration exceeds a specified value, the diagnostic circuit determines that it is a side collision and activates the gas generator of the airbag system. Apply current.

[0003]

In such a conventional starting device for a side impact airbag device, an acceleration sensor and a diagnostic circuit are required, and the structure is complicated and the cost is high.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and provide a vehicle occupant protection device having a simple structure and a low manufacturing cost.

[0005]

A vehicle occupant protection system according to the present invention is provided along a vehicle side inner surface (for example, an inner surface of a door) of a vehicle, and has a gas bag filled with gas. And a relief valve which opens when the pressing force of a predetermined amount or more is applied to the gas bag and releases the gas to the outside of the gas bag.

[0006]

When a vehicle equipped with the vehicle occupant protection system of the present invention is side-impacted and an occupant hits the gas bag, the relief valve opens and the gas in the gas bag is released. As a result, the shock when the occupant bumps into the gas bag is buffered.

[0007]

EXAMPLES Examples will be described below with reference to the drawings. 1, 2, and 3 are a sectional view, a perspective view, and a front view of a vehicle door 12 equipped with a vehicle occupant protection device 10 according to an embodiment, and FIGS. 4 and 5 are structural views of a relief valve.

The door 12 includes a door outer plate 14, a door inner plate 16, a window glass 18, an interior trim 20, and the like. The vehicle occupant protection device 10 includes a gas bag 22 provided along a surface of the door inner plate 16 on the vehicle interior side, and a relief valve 2 for allowing gas in the gas bag 22 to escape.
4 and. The gas bag 22 is covered with the interior trim 20.

The relief valve 24 includes a valve box 28 having a valve seat 26, a valve body 30 which is seated on the valve seat 26 from the outside of the bag, and a spring 32 which biases the valve body 30 in the seating direction. Is equipped with.

When a vehicle having the vehicle occupant protection device 10 is subjected to a side collision, the occupant bumps into the gas bag 22. Then, the gas pressure in the gas bag 22 increases,
The relief valve 24 is opened by being pressed by the gas pressure as shown in FIG. 5, and the gas in the gas bag 22 flows out of the gas bag. As a result, the shock when the occupant bumps into the gas bag 22 is buffered.

In the above embodiment, the device of the present invention is provided on the door, but the device of the present invention may be installed on the side wall portion of the rear seat of the two-door vehicle.

[0012]

As is apparent from the above-described embodiments, the vehicle occupant protection system of the present invention is designed to protect the gas bag pre-filled with gas from inside the gas bag when the occupant collides with the gas bag during a side impact. The gas is made to flow out to buffer the shock to the occupant, and the structure is simple and the manufacturing cost is low.

Further, since the gas bag is preliminarily filled with gas, it is not necessary to deploy the gas bag at the time of a side collision. Since a large-capacity bag can be arranged in a wide area on the inner surface of the door, the occupant can be sufficiently protected regardless of the posture of the occupant.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a door having an embodiment apparatus, which is a cross-sectional view taken along line 1-1 of FIG.

2 is a perspective view of the door of FIG. 1. FIG.

FIG. 3 is a front view of the door of FIG.

FIG. 4 is a sectional view of a relief valve.

FIG. 5 is a cross-sectional view of the relief valve when the valve is open.

[Explanation of symbols]

 10 Gas Bag Device 12 Door 14 Door Outer Plate 16 Door Inner Plate 20 Interior Trim 22 Gas Bag 24 Relief Valve

Front page continuation (72) Inventor Junji Tsuji 420 Tsutsumi, Nakasu Town, Yasu-gun, Shiga Prefecture (72) Nobuya Nagata 4207-8 Ishibe, Ishibe-cho, Koga-gun, Shiga Prefecture

Claims (1)

[Claims] 1. A gas bag which is provided along an inner surface of a vehicle side portion and is filled with gas, and a valve which opens when a pressing force of a predetermined amount or more is applied to the gas bag. An occupant protection device for a vehicle, comprising: a relief valve for releasing the gas to the outside of a gas bag.