Airbag device for a front passenger seat

Patent metadata

Field	Value
Publication number	US-2016280176-A1
Application number	US-201615071412-A
Country	US
Kind code	A1
Filing date	Mar 16, 2016
Priority date	Mar 26, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

An airbag of an airbag device for a front passenger seat includes a passenger-side wall, a circumferential wall, a gas inlet port disposed in a vicinity of the front end of the airbag as deployed, a bottom pocket that is recessed upward from a lower region of the circumferential wall in such a manner as to be continuous with the lower region, and a tether that is disposed generally along a front and rear direction inside the airbag and connects the passenger-side wall and a vicinity of the gas inlet port. The bottom pocket is formed into a pouch like contour by joining outer circumferential edges of left and right bottom pocket constituent regions that extend from the lower region of the circumferential wall. The upper end region of the bottom pocket is joined to the tether.

First claim

What is claimed is:

1 . An airbag device for a front passenger seat adapted to be mounted on an instrument panel disposed in front of the front passenger seat of a vehicle, the airbag device comprising a housing adapted to be disposed on a top plane of the instrument panel and an airbag which is housed in the housing in a folded-up configuration and inflatable with an inflation gas, the airbag comprising:
a passenger-side wall deployable generally vertically at a rear region of he airbag in such a manner as to face the front passenger seat; a circumferential wall configured to extend forward from a peripheral edge of the passenger-side wall in a tapering fashion, the circumferential wall including a lower wall that is deployable on a lower region of the circumferential wall; a gas inlet port disposed generally at a center in a left and right direction in a vicinity of a front end of the airbag as deployed for taking in the inflation gas; a bottom pocket that is recessed upward from the lower wall of the circumferential wall in a pouch-like fashion in such a manner as to be continuous with the lower wall and have an opening at a lower end of the bottom pocket on the lower wall, the bottom pocket being formed by joining outer circumferential edges of a pair of bottom pocket constituent regions that extend from the lower wall at left and right peripheries of the opening of the bottom pocket; and a tether that is disposed generally along a front and rear direction inside the airbag, the tether connecting the passenger-side wall and a vicinity of the gas inlet port for preventing the passenger-side wall from protruding rearward at airbag deployment, the tether being connected to an upper end region, i.e., a bottom region, of the bottom pocket.

2 . The airbag device for a front passenger seat of claim 1 , further comprising a rear pocket that is recessed forward from the passenger-side wall in a pouch-like fashion in such a manner as to be continuous with the passenger-side wall and have an opening at a rear end of the rear pocket on the passenger-side wall, the rear pocket being formed by joining outer circumferential edges of a pair of rear pocket constituent regions that extend from the passenger-side wall at left and right peripheries of the opening of the rear pocket, wherein a front end region, i.e., a bottom region, of the rear pocket being connected to the tether.

3 . The airbag device for a front passenger seat of claim 1 , further comprising an upper pocket that is disposed on an upper wall of the circumferential wall which is deployable on an upper side of the circumferential wall, the upper pocket being recessed downward from the upper wall in a pouch-like fashion in such a manner as to be continuous with the upper wall and have an opening at an upper end of the upper pocket on the upper wall, the upper pocket being formed by joining outer circumferential edges of a pair of upper pocket constituent regions that extend from the upper wall at left and right peripheries of the opening of the upper pocket, wherein a lower end region, i.e., a bottom region, of the upper pocket being connected to the tether.

4 . The airbag device for a front passenger seat of claim 1 , wherein:
the lower wall of the airbag is composed of a pair of lower panel sections each of which is configured to form a left or right half region of the lower wall; and each of the bottom pocket constituent regions extends from each of the lower panel sections.

5 . The airbag device for a front passenger seat of claim 2 , wherein:
the passenger-side wall of the airbag is composed of an inner left panel forming a left half region of the passenger-side wall and an inner right panel forming a right half region of the passenger-side wall; and each of the rear pocket constituent regions extends from each of the inner left panel and inner right panel.

6 . The airbag device for a front passenger seat of claim 2 , further comprising an upper pocket that is disposed on an upper wall of the circumferential wall which is deployable on an upper side of the circumferential wall, the upper pocket being recessed downward from the upper wall in a pouch-like fashion in such a manner as to be continuous with the upper wall and have an opening at an upper end of the upper pocket on the upper wall, the upper pocket being formed by joining outer circumferential edges of a pair of upper pocket constituent regions that each extend from the upper wall at left and right peripheries of the opening of the upper pocket, wherein a lower end region, i.e., a bottom region, of the upper pocket being connected to the tether.

7 . The airbag device for a front passenger seat of claim 6 , wherein:
a region of the airbag ranging from the upper wall to the passenger-side wall is composed of an inner left panel forming a left half region of said region and an inner right panel forming a right half region of said region; and each of the rear pocket constituent regions and each of the upper pocket constituent regions extends from the inner left panel or inner right panel.

8 . The airbag device for a front passenger seat of claim 1 , wherein the bottom pocket is formed into a generally trapezoid tapering upwardly.

9 . The airbag device for a front passenger seat of claim 2 , wherein the rear pocket is formed into a generally trapezoid tapering forward.

10 . The airbag device for a front passenger seat of claim 3 , wherein the upper pocket is formed into a generally trapezoid tapering downwardly.

11 . The airbag device for a front passenger seat of claim 8 , wherein, in a peripheral seam which joins the outer circumferential edges of the bottom pocket constituent regions together, an inclination angle of each of a front region and a rear region of the peripheral seam from an upper region of the peripheral seam is within a range of 90° to 110°.

12 . The airbag device for a front passenger seat of claim 9 , wherein, in a peripheral seam which joins the outer circumferential edges of the rear pocket constituent regions together, an inclination angle of each of an upper region and a lower region of the peripheral seam from a front region of the peripheral seam is within a range of 90° to 110°.

13 . The airbag device for a front passenger seat of claim 10 , wherein, in a peripheral seam which joins the outer circumferential edges of the upper pocket constituent regions together, an inclination angle of each of a front region and a rear region of the peripheral seam from a lower region of the peripheral seam is within a range of 90° to 110°.

Assignees

• Toyoda Gosei Kk

Inventors

• Yamada Ikuo

Classifications

• B60R2021/2395

  comprising means to control the venting · CPC title

• B60R2021/23324

  Inner walls crating separate compartments, e.g. communicating with vents · CPC title

• B60R2021/23316

  Inner seams, e.g. creating separate compartments or used as tethering means · CPC title

• B60R2021/23308

  the individual compartments defining the external shape of the bag · CPC title

• B60R21/239

  characterised by their venting means · CPC title