JPH0740435Y2 - Vehicle airbag device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a vehicle airbag device designed to protect an occupant against an impact load input from the side due to a rear-end collision or the like. It is a thing.

(Prior Art) Conventionally, for example, an air bag device disclosed in Japanese Utility Model Laid-Open No. 61-204855 is known as a means for protecting an occupant against an impact load.

The outline of the airbag device includes an impact force detection sensor that detects an impact force and an airbag that swells in a moment by a detection signal from the detection sensor. The airbag is incorporated in a horn pad of a steering wheel.

As a result, the airbag is inflated with respect to the impact load input from the front-rear direction to prevent the airbag from jumping forward or colliding with the steering wheel.

(Problems to be Solved by the Invention) As described above, the airbag device is a system that functions with respect to the impact load input from the front-rear direction. On the other hand, there was no system to protect passengers.

Therefore, the present invention provides an airbag device for a vehicle that protects an occupant against an impact load input from the side and eliminates the need to newly set an airbag installation portion. The purpose is to do.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a detection sensor that is turned on by an impact force input from the side on the side surface of the vehicle body, An armrest in which a core material for supporting a load from above is provided on the inside of the side of the, and a folded airbag and a propulsion means for inflating the airbag by a detection signal from the detection sensor are provided in the armrest. The armrest is provided with a thin-walled part of which a portion is torn by the inflation load of the airbag.

(Operation) In such an airbag device, it can be used as a general armrest by placing an elbow or an arm during normal traveling. On the other hand, when an unexpected accident such as a side collision occurs and a large impact load is input to the side of the vehicle body, the detection sensor operates and the folded airbag is instantly inflated by the propulsion means. At this time, the inflation load of the airbag causes the thin portion to tear, so that the airbag pops out from the armrest, and the impact force that acts on the occupant due to the popped-out airbag is suppressed to a small extent, thereby protecting the occupant. Further, since the armrest is used, it is not necessary to set a new installation part.

(Embodiment) An embodiment of the present invention will be described below in detail with reference to the drawings of FIGS. 1 to 3.

Reference numeral 1 in the figure shows a door of an automobile 3, and a door body 5 is composed of an outer panel 7 and an inner panel 9, and can be opened and closed with a front hinge (not shown) as a fulcrum. An elevating device (not shown) such as a window regulator for moving the window panel 11 up and down is provided in the inner space of the door body 5 formed by the outer panel 7 and the inner panel 9. Inner panel 9 of the door body 5
An armrest (13) that projects to the inside is provided on the inside, and the inside is covered with a door rim (15).

The armrest 13 has a core material 17 that serves as a main frame, and a core material.
It consists of a pad 19 that surrounds 17 and a skin 21, and the armrest
The mounting portions 17a of the core 17 extending to both ends of 13 are fixed to the inner panel 9 with screws 23.

A weather strip 27 is provided over the upper area of the door sash 25 including the lower end area of the door body 5, and the weather strip 27 in the lower end area is in elastic contact with the side sill 29.

Side sill 29 is sill outer panel 31 and sill inner panel
33 and 33 are formed in a closed cross-sectional shape, and the terminal flange portion of the floor panel 35 is overlapped and coupled to the sill inner panel 33 side.

A detection sensor 37 is provided on the sill inner panel 33 in the internal space of the side sill 29. The detection sensor 37 is a shock detection sensor that is turned on by a large impact force applied to the side sill 29 due to a side collision or the like.

On the other hand, inside the armrest 13, an air bag 39 folded small and a propulsion means 41 for inflating the air bag 39 are provided.

The propulsion means 41 is an igniter that ignites in response to a detection signal from the detection sensor 37, and an inert gas generator that causes the igniter to generate an inert gas and instantly inflate the airbag 39 (neither is shown). ) Is used. The ignition device of the propulsion means 41 is connected to the detection sensor 37 via a signal cable 43 extending from the front side on the door hinge side to the side sill 29 side. Therefore,
The signal cable 43 does not cause any trouble when the door 1 is opened and closed.

The armrest 13 in the area where the airbag 39 is stored
The skin 21 is provided with thin-walled portions 21a and 21b so that the airbag 39 can be easily broken by the action when the airbag 39 is inflated. This thin part 21
Since a and 21b are provided in the lower region of the core material 17 and inside, the load from above is received by the core material 17, and the load and the appearance quality are improved. It has a shape that does not cause any problems.

In the air bag device configured as described above, it can be used as a general armrest by placing an elbow or an arm during normal traveling. On the other hand, when an unexpected accident such as a side collision occurs and a large impact load is input to the side of the vehicle body, the detection sensor 37 detects it. At the same time, the ignition device of the propulsion means 41 operates by the detection signal from the detection sensor 37 to ignite the inert gas generating agent. As a result, the airbag 39 instantly breaks the epidermis 21 and greatly expands outward. As a result, the impact force acting on the occupant is largely absorbed by the airbag 39, so that large damage and the like can be avoided.

The air bag 39 is used at the door 1 on the driver side.
It is not limited to. Although gas is used to inflate the air bag 39, means other than gas can be used. Further, the detection sensor 37 can be provided in the door body 5 as shown by the chain line in FIG. In the case of the embodiment in which the detection sensor 37 is provided in the door body 5, the connection wiring between the detection sensor 37 and the propulsion means 41 becomes easy, and moreover,
It will be shorter.

[Effects of the Invention] As described above, according to the airbag device for a vehicle of the present invention, since it is provided in the armrest, a normal armrest function for mounting an elbow or an arm can be obtained, and particularly, the side surface is provided. When a large impact load is input to the side of the vehicle body due to an unexpected accident such as a collision, the airbag provided in the armrest swells, so that the swelled airbag can avoid an accidental injury to an occupant. Further, since the armrest is used, the installation part for installing the airbag can be omitted.

[Brief description of drawings]

FIG. 1 is a side view of an automobile in which the present invention is applied to a door, FIG. 2 is a cutaway view in which an air bag is set in an armrest and a part of the door is omitted, and FIG. It is a sectional view showing a state. 13 …… Armrest 37 …… Detection sensor 39 …… Airbag 41 …… Propulsion means

Claims (1)

[Scope of utility model registration request] 1. A detection sensor that is turned on by an impact force input from the side is provided on a side surface of a vehicle body, and an armrest in which a core material for supporting a load from above is provided inside a lateral side of the vehicle body. An airbag folded in the armrest and a propulsion means for inflating the airbag in response to a detection signal from the detection sensor are provided, and the armrest is provided with a thin portion partially broken by the inflation load of the airbag. An air bag device for a vehicle characterized by: