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EP1024063A2
Expired / Lapsed
EP
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Vehicle bumper and hood airbag system
Assignee: Nissan Motor Co Ltd
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Filing: 2000-01-26
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Granted: —
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Expires: 2020-01-26
Abstract
Abstract A vehicle-mounted system has a bumper (2), an airbag (8), a pedestrian sensor (3), and an inflator (9). The bumper (2) is mounted to the front end of the vehicle front body (1a). A hood (10) is mounted to the front body (1a), to the rear of the bumper (2). The airbag (8) is disposed in a region between the front end of the bumper and the rear end of the hood. The sensor (3) detects or pre-detects a collision between a pedestrian (M) and the vehicle (1), and generates a collision signal. The inflator (9) receives the collision signal, in response to which it generates and supplies gas so as to expand the airbag (8). The airbag (8) expands forward, inclined upwardly, to cover an upper surface of the bumper (2) and a front end of the hood (10). The airbag (8) has a high-rigidity part (1) on at least a front side thereof for receiving the gas from the inflator (9). The high-rigidity part (11) receives an impact force from the pedestrian (M). The airbag expansion direction substantially opposes the direction of exertion of the impact force.
Inventors
- 👤 Asai Toshiyuki
- 👤 Maki Tetsuo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 15:32
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/34; B60R21/36
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
145 words
An airbag system mounted on a vehicle front body (1a),
comprising: a bumper (2) attached to a front end of the front body
(1a); a hood (10) mounted on the front body (1a), to the
rear of the bumper (2); an airbag (8) disposed in a region between a front end
of the bumper (2) and a rear end of the hood (10); a sensor (3) for detecting or pre-detecting a vehicle
front collision with a pedestrian and generating a
collision signal; and an inflator (9) which receives the collision signal
and generates and supplies gas for expanding the airbag
(8); wherein the airbag (8) has a high-rigidity part
(7;11;14;15;16;18;19) disposed on at least a front side
thereof for receiving the gas from the inflator (9), and
expands to cover an upper surface of the bumper (2) and a
front end of the hood (10).
Claim 2
Dependent Claim
182 words
An airbag system mounted on a vehicle front body (1a),
comprising: a bumper (2) attached to a front end of the front body
(1a); a hood (10) mounted on the front body (1a), to the rear
of the bumper (2); an airbag (8) disposed in a region between a front end
of the bumper (2) and a rear end of the hood (10); inflation means (9) for generating and supplying gas
for expanding the airbag (8); detecting means (3) for detecting a pedestrian and
generating a signal; and control means for controlling the inflation means (9)
according to the signal from the detecting means (3); wherein: the airbag (8) expands forward, inclined upwardly, to
cover an upper surface of the bumper (2) and a front end of
the hood (10); the airbag (8) has a high-rigidity part
(7;11;14;15;16;18;19) disposed on at least a front side
thereof for receiving the gas from the inflation means (9); the high-rigidity part receives an impact force from
the pedestrian; and an expansion direction of the airbag (8) substantially
opposes an exertion direction of the impact force.
Claim 3
Dependent Claim
26 words
An airbag system according to claim 1 or 2, including
a forward canted backup member (6) on the front body (1a)
opposed to the expanded airbag.
Claim 4
Dependent Claim
31 words
An airbag system according to any of claims 1 to 3,
including at least one operable lid (17) connected to the
front body, for controlling a direction of the airbag
expansion.
Claim 5
Dependent Claim
25 words
An airbag system according to any of claims 1 to 4,
including an outer-surface member (17;18;19;20), the airbag
(8) being disposed behind the outer-surface member.
Claim 6
Dependent Claim
16 words
An airbag system according to claim 5, wherein the
high-rigidity part comprises the outer-surface member
(7;18;19).
Claim 7
Dependent Claim
32 words
An airbag system according to claim 5 or 6, wherein
the outer-surface member comprises a front grille
(7;18;19;20), and the airbag (8) is disposed between the
front grille and a radiator (13).
Claim 8
Dependent Claim
37 words
An airbag system according to claim 6, wherein the
airbag (8) comprises an airbag body (8a) substantially
having a bag shape, and the outer-surface member (7) is
fixed to an outer surface of the airbag body (8a).
Claim 9
Dependent Claim
42 words
An airbag system according to claim 6, wherein the
airbag (8) comprises an airbag body (8a) substantially
having a bag shape with a notch (30), and the outer-surface
member (19) is fixed to the airbag body (8a) and closes the
notch (30).
Claim 10
Dependent Claim
24 words
An airbag system according to claim 5, wherein the
outer-surface member (20) is hinged to rotate toward an
upper surface of the hood (10).
Claim 11
Dependent Claim
77 words
An airbag system according to claim 1 or 2, wherein
the airbag (8) is disposed in the bumper (2), an opening is
formed in the upper surface of the bumper (2), the opening
is covered with a lid (22), and one end (23) of the lid
(22) is rotatably connected to the bumper (2), the
arrangement being such that the other end of the lid is
directed downward after the airbag (8) has expanded through
the opening.
Claim 12
Dependent Claim
95 words
An airbag system according to claim 1 or 2, wherein
the airbag (8) is disposed in the bumper (2), an opening is
formed in the upper surface of the bumper (2), the opening
is covered with a lid (22), one end (23) of the lid (22) is
rotatably connected to the bumper (2), and a stopper
(24;25;26) is provided between the lid (22) and the bumper
(2) to prevent the lid from rotating over a rearwardly
inclined standing position on the upper surface of the
bumper (2) when the airbag (8) expands through the opening.
References Cited (Backward Citations)
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