JPH0642926Y2 - Attachment structure for passenger airbag device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mounting structure of a passenger seat airbag device applied to a passenger seat of a vehicle.

2. Description of the Related Art A passenger airbag device is a device that is installed inside an instrument panel of a passenger seat to complete inflation before a secondary collision of a passenger and protect it. The mounting structure of the bag device will be described with reference to FIGS. 3 and 4. An inflator 1 including an air bag, a gas generator, etc. is attached to a cross pipe 3 in an instrument panel 2 via a pair of brackets 4 '. Installed. And the bracket 4'is the inflator 1
Were welded to the cross pipe 3 so as to be located on both side surfaces of the inflator 1, and the inflator 1 was firmly attached to the bracket 4'using four bolts 5.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention According to the above-mentioned conventional mounting structure for the passenger seat airbag device, when the passenger seat airbag device is activated, the airbag built in the inflator 1 is directed toward the passenger compartment. In order to expand and deploy in the direction of arrow 8, the bracket 4 '
In addition to the reaction force in the horizontal direction at the time of operation, the force in the same direction acts from the passenger in the passenger seat, and a strong supporting force is required for the horizontal input. However, the instrument panel 2 has a legal regulation on the generation G at the time of impact, and a high G generation occurs in the conventional mounting structure of the passenger airbag device against the vertical cormorant shown by the arrow 9. As a result, it was inconvenient because it could not meet the legal requirements of the instrument panel.

Therefore, the object of the present invention is to provide sufficient supporting force for horizontal input when the passenger airbag device is operated, but it cannot support when the vertical input is larger than the specified value. (EN) It is intended to provide a mounting structure of an airbag device for a passenger seat, which can be dropped and absorbed to prevent generation of high G exceeding legal requirements.

Means for Solving the Problems The present invention is to solve the above-mentioned problems, and in a mounting structure of an airbag device for a passenger seat supported by a bracket on a cross pipe, a bracket provided with a vertical elongated hole. The inflator of the airbag device is bolted to, and sufficient supporting force is exerted for horizontal input when the airbag device is activated, but slides along the elongated hole when the vertical input exceeds a specified value. It is a structure for mounting an airbag device for a passenger seat, which is characterized by being mounted as described above.

Action According to the above-mentioned means, the fact that the input acting when the passenger airbag device is activated is different from the direction of the impact input that is legally stipulated in the instrument panel, the vertical direction is set on the bracket. Since the inflator is bolted by providing the long hole, the mounting structure can exhibit sufficient supporting force without sliding the bolt against horizontal input. On the other hand, when the vertical input exceeds the specified value, the bolt fixing the inflator slides down along the elongated hole, causing a vertical impact on the instrument panel.
Can be reduced to below the legally specified value.

Embodiment An embodiment of the mounting structure of the passenger airbag device according to the present invention will be described with reference to FIG. 1 and the die 2 of FIG. 1. The passenger airbag device is a device for protecting an occupant in the passenger seat. There is an inflator 1 with a built-in airbag and gas generator, and an instrument panel 2 on the passenger side.
Is mounted inside the vehicle and configured to inflate and deploy the airbag toward the passenger compartment before the secondary collision of the passenger in the passenger seat to reduce the impact. The inflator 1 is attached to a pair of opposing brackets 4 welded to the cross pipe 3 by fixing both side surfaces with two bolts 5, and the bracket 4 is provided with vertical elongated holes 6 as bolt holes. Two are provided. Further, the vehicle compartment side lower end of the inflator 1 and the cross pipe 3 are connected by two absorbers 7 which function as auxiliary weak brackets.

According to the mounting structure of the passenger airbag device having the above-described configuration, when the airbag device is activated and the airbag is inflated and deployed in the direction of the arrow 8 from the inflator 1 toward the passenger compartment, the airbag is horizontally expanded. The reaction force and the input from the passenger in the passenger seat act on the bracket 4 via the bolt 5. And
Since the bracket 4 is provided with a vertical elongated hole 6 which is orthogonal to the horizontal input, the bolt 5 does not slide and exerts a sufficient supporting force, and the airbag device receives the impact applied to the passenger in the passenger seat. Can be relaxed and protected. On the other hand, according to the legal provisions of the instrument panel 2, the upper limit G of occurrence when a vertical impact input is applied to the instrument panel 2 is set, and the inflator 1 located inside the instrument panel 2 is attached. Is strong, a high G will be generated upon receiving a shock input. However, since the inflator 1 is fixed to the vertical elongated hole 6 by the bolt 5, when a large input exceeding the specified value acts in the vertical direction indicated by the arrow 9, the bolt 5 moves along the elongated hole 6 along with the inflator 1. The impact force is absorbed by sliding. Therefore, the G generated by the impact input in the vertical direction is reduced, and a mounting structure of the passenger airbag device that can satisfy the legally specified value while sufficiently securing the supporting force when the airbag device is operated. Become. Needless to say, the specified value of the vertical input in which the inflator 1 slides along the elongated hole 6 and falls off can be adjusted by the tightening force of the bolt 5 and the setting of the absorber 7.

Effect of the Invention According to the above-described invention, a sufficient supporting force is secured for the horizontal input when the air bag device is activated, and the long length is maintained when the input more than the specified value is applied in the vertical direction. The airbag has a mounting structure for a passenger seat that slides along the hole to reduce the amount of generated G.

[Brief description of drawings]

FIG. 1 is a left side view showing an embodiment of a mounting structure for a passenger seat airbag device according to the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a left side view showing a conventional example. FIG. 4 is a front view of FIG. 1 ... Inflator, 2 ... Instrument panel, 3 ... Cross pipe, 4 ... Bracket, 5 ... Bolt, 6 ... Oblong hole, 7 ... Absorber.

Claims (1)

[Scope of utility model registration request] 1. A mounting structure for an airbag device for a passenger seat, which is supported by a cross pipe through a bracket, wherein an inflator of the airbag device is bolted to a bracket provided with a vertically elongated hole, and the airbag device is mounted. An airbag device for a passenger seat, which has a sufficient supporting force for horizontal input during operation, but is mounted so as to slide along the elongated hole when the vertical input exceeds a specified value. Mounting structure.