EP0694444B1
Expired / Lapsed
EP
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Air bag device
Assignee: Breed Automotive Technology Inc
•
Filing: 1995-07-11
•
Granted: 1998-10-07
•
Expires: 2015-07-11
Abstract
Abstract The gas-fillable airbag (1) is held on the frame (2) in the passenger area of the vehicle by a clamping device which forms a structural unit with the airbag. The size of the preferably tubular airbag is measured so that all the frame parts dangerous in an accident are covered to prevent direct contact with the passenger in event of crash. The elongated airbag stretches along the upper door frame part (2) of the bodywork. To produce the filling pressure a tube matching the shape of the door frame part is mounted inside the airbag, whereby a filling gas with predetermined pressure can be produced in the tube. The tube has one or more ideal break points which open into the inside of the airbag when a certain pressure prevails in the inside of the tube. <IMAGE>
Inventors
- 👤 Martin Specht
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 14:47
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/213; B60R21/23; B60R21/231; B60R21/232
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
145 words
An airbag device for a motor vehicle comprising at least one gas generator (4) for producing a filling gas; and an airbag (1) which is inflatable with the filling gas and
which in the folded condition extends in elongated form along the upper
door frame portion (2) in the passenger compartment of the motor
vehicle and is held by means of a clamping device, characterised in that for distribution of the filling gas pressure a fixed tube (9,
10) which is adapted to the configuration of the upper door frame
portion (2) and which is connected to the at least one gas generator
(4) is arranged in the interior of the airbag and that the tube has
desired-rupture locations, for example notches (24), distributed
longitudinally in its wall, through which the filling gas flows into
the airbag (1) after the attainment of a given pressure.
Claim 2
Dependent Claim
31 words
An airbag device according to claim 1 characterised in that
the folded airbag (1) and the tube (9) form an airbag unit (22) which
is enclosed by an additional sheath (32).
Claim 3
Dependent Claim
27 words
An airbag device according to claim 1 or claim 2 characterised
in that the tube (1) is sewn fast to the casing fabric of the airbag
(1).
Claim 4
Dependent Claim
36 words
An airbag device according to claim 3 characterised in that
two longitudinal edges (11, 12) of the airbag (1) are sewn to the tube
(9) in seams extending in the longitudinal direction of the tube (9).
Claim 5
Dependent Claim
70 words
An airbag device according to one of claims 1 to 4
characterised in that the folding (14) of the airbag (11) extends
parallel to the tube (9; 10) and that an outer fold (15) of the airbag
casing fabric is laid around the pack of the folded airbag (11) and at
its longitudinal edge forms one of the two longitudinal edges (11, 12)
which are sewn to the tube (9).
Claim 6
Dependent Claim
39 words
An airbag device according to one of claims 1 to 5
characterised in that the two longitudinal edges (11, 12) of the airbag
casing fabric are sewn to a sewing lip (13) which is formed on the tube
(9).
Claim 7
Dependent Claim
45 words
An airbag device according to claim 6 characterised in that
the sewing lip (13) is folded over in its length and that one of the
two longitudinal edges (11, 12) of the airbag casing fabric is laid
between the two sewing lip portions (16, 17).
Claim 8
Dependent Claim
24 words
An airbag device according to claim 7 characterised in that
the outer folded-over sewing lip portion (16) is glued to the clamping
device (6).
Claim 9
Dependent Claim
72 words
An airbag device according to one of claims 1 to 8
characterised in that the airbag unit (22) comprising the tube (9) and
the folded airbag (1) is fixed by means of one or more holding portions
(18) which is or are inserted in positively locking relationship at a
strip fixing location (19) between a fixing portion (20) at the
clamping device (6) and a fixing portion (21) at the vehicle body.
Claim 10
Dependent Claim
34 words
An airbag device according to claim 19 characterised in that
the mechanical holding portion or portions (18) is or are fixed in the
region of the sewing lip (13) to the airbag unit (22).
Claim 11
Dependent Claim
45 words
An airbag device according to claim 9 or claim 10
characterised in that the mechanical holding portion or portions (18)
is or are pressed on to the sewing lip (13) and the longitudinal edges
(11, 12) of the airbag casing fabric, which are sewn thereto.
Claim 12
Dependent Claim
40 words
An airbag device according to one of claims 9 and 10
characterised in that the mechanical holding portion or portions (18)
are also sewn to the sewing lip (13) with the longitudinal edges (11,
12) of the airbag casing fabric.
Claim 13
Dependent Claim
28 words
An airbag device according to one of claims 9 to 12
characterised in that the holding portion (18) is in the form of a
holding plate or clip.
Claim 14
Dependent Claim
46 words
An airbag device according to one of claims 1 to 13
characterised in that provided in the region of the periphery of the
airbag casing fabric is a stabilisation cord (23) of high tensile
strength, which is anchored by its projecting ends to the vehicle body.
Claim 15
Dependent Claim
31 words
An airbag device according to one of claims 1 to 14
characterised in that a mechanical support (25; 26) is formed on the
clamping device (6) for the airbag unit (22).
Claim 16
Dependent Claim
38 words
An airbag device according to one of claims 1 to 15
characterised in that the support which is formed on the clamping
device is in the form of a sheath (25) which encloses the installed
airbag unit (22).
Claim 17
Dependent Claim
22 words
An airbag device according to claim 1 characterised in that
the firing means for the gas generator (4) are concealed firing cords.
References Cited (Backward Citations)
No citation records indexed.
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