US 10,479,311 B2Granted

Airbag cover

AssigneesToyoda Gosei Co., Ltd., Honda Motor Co., Ltd.

InventorsKeiichiro Takebayashi, Kento Maeda, Shinsuke Odai

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Abstract

An airbag cover adapted to be jointed with an airbag housing for covering an airbag housed in the housing. The airbag cover includes a door. In a circumference of the door, there are a hinge region which holds the door as opened, and a tearable region configured to break when pushed by the airbag. The tearable region includes a bridged tear region which includes perforations formed through the airbag cover and bridging regions disposed between the perforations, and is configured to break when the bridging regions break, and a thinned tear region which includes a continuous thinned region and is configured to break when the thinned region breaks. The bridged tear region is disposed at a leading end of the door as opened, distant from the hinge. The thinned tear region is disposed between both ends of the hinge region and both ends of the bridged tear region.

Claims8

Dependent claims

An airbag cover adapted to be jointed with an airbag housing for covering an airbag which is housed in the airbag housing in a folded-up configuration, the airbag cover comprising:

a door that is openable when pushed by the airbag as inflated for allowing airbag emergence;
a hinge region of the door that holds the door as opened;
and
a tearable region that is disposed in a circumference of the door and configured to break when pushed by the airbag for allowing the door to open, the tearable region comprises:
a bridged tear region that includes a plurality of perforations formed through the airbag cover and a plurality of bridging regions disposed between the perforations, and is configured to break when the bridging regions break, the bridged tear region being disposed at a leading end portion of the door as opened, distant from the hinge region;
and
a plurality of thinned tear regions, each thinned tear region of the plurality of thinned tear regions includes a continuous thinned region and is configured to break when the thinned region breaks, one of the thinned tear regions being disposed in an area ranging from a first end of the hinge region to a first end of the bridged tear region and another one of the thinned tear regions being disposed in an area ranging from a second end of the hinge region to a second end of the bridged tear region,
wherein the bridged tear region is arranged in a U shape and includes a leading end region which is disposed distant from the hinge region, corners which bend from both ends of the leading end region, and two regions which extend from the corners and continued to the thinned tear regions.

5 more elements

An airbag cover adapted to be jointed with an airbag housing for covering an airbag which is housed in the airbag housing in a folded-up configuration and deployable for protecting an object of protection, the airbag cover comprising:

a ceiling wall that covers the airbag and has a first surface forming a decorative surface and a second surface;
a side wall that extends from an outer circumferential edge of the ceiling wall generally perpendicularly to the ceiling wall and towards a direction facing away from the decorative surface, the side wall including a first portion and a second portion that are opposed to each other and each include a joint region for joint with the airbag housing;
a door that is disposed on the ceiling wall and is configured to open when pushed by the airbag as inflated for allowing airbag emergence;
a hinge region of the door that holds the door as opened, the hinge region being disposed in a vicinity of the ceiling wall on the first portion of the side wall;
a bridged tear region that is breakable for allowing the door to open, the bridged tear region being disposed on the second portion of the side wall between the joint region and the ceiling wall in a vicinity of a leading end of the door as opened, wherein the bridged tear region includes a plurality of perforations formed through the second portion of the side wall and a plurality of bridging regions disposed between the perforations, and is configured to break when the bridging regions break;
wherein a groove denting from an outer surface of the side wall extends over a location of the bridged tear region;
and wherein the perforations of the bridged tear region are formed intermittently at a bottom of the groove.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/690,726Filed 30 Aug 2017
Priority: JP 2016-1729895 Sep 2016
Published: US 2018/0065586 A18 Mar 2018
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

B60R 21/2165
Characterised by the covers for the inflatable member: characterised by a tear line for defining a deployment opening
B60R 21/206
In dashboards: in the lower part of dashboards, e.g. for protecting the knees
B60R 21/215
Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components:…
B60R 2021/21537
Characterised by the covers for the inflatable member: characterised by hinges

Family

US 2018/0065586 A1Pre-grant publication · published 8 Mar 2018
US 10,479,311 B2This patent

From the US filing history. Foreign family members aren’t listed.

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