Toyoda Gosei Co., Ltd.

Akira Yasuda

Yuji Matsuzaki

Yuto Noda

Makoto Ozeki

Taizo Suemitsu

Motoyuki Tanaka

Takuya Kusumura

Yuji Sato

Hajime Kitte

Yuya Suzuki

Kenji Kakimoto

Takatoshi Yajima

Kimihiko Hyodo

An occupant protection device includes an airbag mounted on a seat of a vehicle and attached to a belt body of a seat belt in a folded state. The airbag is inflated so as to allow an inflation gas discharged from an inflator to flow into the airbag and protect an occupant seated on the seat while protruding forward. An airbag cover is formed in an elongated shape that can cover an outer periphery of part of the belt body and a folding completion body corresponding to a state where the airbag is folded, and is closed such that at least the belt body is allowed to be inserted therethrough at both ends in the longitudinal direction.

Occupant protection device and airbag cover

An occupant protection device includes a seatbelt having a lap belt portion; a pretensioner mechanism that takes up the seatbelt; an inflator that discharges an inflating gas; and an airbag that is joined to the lap belt portion. The airbag including a bag main body portion, which is housed folded, inflates owing to the inflating gas being supplied, and receives an occupant, and a conduit portion, which guides the inflating gas discharged from the inflator to the bag main body portion, and causes the inflating gas to flow into the bag main body portion. A length dimension along the lap belt portion of a joining region in which the airbag and the lap belt portion are joined is shorter than a length dimension along the lap belt portion of the bag main body portion in a folded state.

Occupant protection device

An occupant protection device protects an occupant seated on a seat, in which an airbag is held in a holding body disposed in a periphery of a hip portion of the occupant. The airbag has a bag main body, and a conduit portion that causes an inflating gas discharged from an inflator to flow into the bag main body. The bag main body is held in the holding body as a completely folded body, folded using a front-rear reduction folding such that a width dimension in a front-rear direction is reduced from a preliminary folded bag. The completely folded body is formed by a lower side rolled region, formed by a lower side region of the preliminary folded bag being wound from a lower edge side, being stacked on an upper side rolled region, formed by an upper side region of the preliminary folded bag.

A pedestrian airbag device includes an airbag and an inflator that supplies an inflating gas to the airbag. The airbag includes a cowl cover portion and two pillar cover portions. The inflator includes a main body portion having a substantially columnar outer shape, and a mounting bolt disposed to protrude from an outer peripheral surface of the main body portion in an axis orthogonal direction of the main body portion. The main body portion is mounted on an accommodation site side by using the mounting bolt in a state where the main body portion is inserted into the cowl cover portion while an axial direction is disposed to substantially extend along a left-right direction. A gas flow regulating member suppressing a rearward outflow of an inflating gas discharged from the main body portion is disposed at a position on a rear side of the main body portion inside the cowl cover portion.

Pedestrian airbag device

An occupant protection device includes a seatbelt, an inflator, an airbag and a tether. The seatbelt has a lap belt portion that restrains a waist portion of an occupant. The inflator discharges an inflating gas. The airbag is provided in the lap belt portion, and includes a bag main body portion, which receives the occupant by inflating owing to the inflating gas being supplied, and a conduit portion, which is connected to the inflator, guides the inflating gas discharged from the inflator to the bag main body portion, and causes the inflating gas to flow into the bag main body The tether links the conduit portion and a side wall portion, of a left side wall portion and a right side wall portion of the bag main body portion when inflation is completed, on a side separated from the inflator in a left-right direction.

An occupant protection device for protecting an occupant seated in a seat includes a seatbelt having at least a tongue, a buckle, and a lap belt portion, an inflator, and an airbag provided in the lap belt portion. In a state where a main body portion of the airbag is inflated, an end portion on a tongue side of a conduit portion of the airbag in a left-right direction of the seat extends as far as a position equivalent to that of an end portion on the tongue side of the main body portion, or nearer than the end portion on the tongue side of the main body portion to the tongue.

An occupant protection device has a folded airbag in a holding body in front of a hip portion of an occupant. The airbag protrudes from the holding body when an inflating gas flows, inflates to cover a region in front of the occupant, and includes an occupant side wall portion on the occupant side when inflation completes, and restrains an upper body of the occupant. The occupant side wall portion has a lower side restraining face, which restrains a range from an abdominal portion to a chest portion of the occupant, and an upper side restraining face, which restrains a head portion or a shoulder portion of the occupant, on a rear face side when inflation completes, and a bended portion is in a boundary region between the upper side restraining face and the lower side restraining face, and the upper side restraining face protrudes to the occupant side.

An occupant protection device is such that an airbag is housed in a housing region of a lap belt portion that can be disposed on a front side of a waist portion of an occupant seated in a seat. The airbag can receive and protect an upper body of the occupant using a rear face side occupant restraining face when inflation is completed. The airbag includes an exhaust port that can discharge an inflating gas and a regulating valve mechanism that restricts a discharge of the inflating gas from the exhaust port. The regulating valve mechanism permits a discharge of the inflating gas from the exhaust port when a protrusion upward of the airbag from the housing portion is restricted, and restricts a discharge of the inflating gas from the exhaust port when a protrusion upward of the airbag from the housing portion is not restricted.

A pedestrian airbag device includes an airbag, which is housed folded in a vicinity of a rear end of a hood panel, and an inflator that supplies an inflating gas to the airbag. The airbag includes a vehicle body side wall portion disposed on a body side when inflation is completed, and a pedestrian side wall portion disposed opposing the vehicle body side wall portion. An internal pressure maintenance chamber is enclosed by a peripheral wall coupled to the vehicle body side wall portion and the pedestrian side wall portion, and is configured such that an inflating gas discharged from the inflator can flow into an interior via a general inflating portion in the airbag. A check valve mechanism that prevents a backflow to the general inflating portion side of the inflating gas that has flowed into the interior is disposed in the internal pressure maintenance chamber.

A pedestrian airbag device includes an airbag and an inflator that supplies an inflating gas to the airbag. In the airbag, an insertion opening portion for inserting the inflator into the airbag is disposed on the vehicle body side wall portion side. The insertion opening portion includes an insertion slit for inserting the main body portion of the inflator, and an insertion hole for causing the mounting bolt of the inflator to protrude. A guide tether for guiding when the inflator is inserted is disposed inside the airbag so that one end side is joined to the pedestrian side wall portion side, and the other end side is joined to a region on a side from the insertion hole in a peripheral edge of the insertion slit on the vehicle body side wall portion side.

An airbag device includes an airbag, a case in which the folded airbag is housed, and an airbag cover that covers the folded airbag. An attachment portion of the airbag cover is attached to a peripheral wall portion of the case by a rivet being caused to pass through. The case is such that a vicinity of a boundary region between the peripheral wall portion and a bottom wall portion is curved in an approximate arc in cross-section. The attachment portion includes a protruding portion that protrudes toward the peripheral wall portion side in an end edge farther to a leading end side than a region of penetration of the rivet. The protruding portion is disposed in a position opposing a curved region configuring a boundary region between the peripheral wall portion and the bottom wall portion, and is protruded in such a way as to be oriented farther to a central side of the bottom wall portion than an outer side face of the peripheral wall portion, and an edge on the peripheral wall portion side of a protruding end face is disposed in a state of non-contact with the curved region.

Airbag device

An airbag device for pedestrian protection includes means for shrinking and tying an airbag after deployment toward the storage. The airbag device includes a protecting sheet that is folded together with the airbag and stored in the storage, and a wrapping sheet that wraps the airbag as folded. The protecting sheet includes a main body and a plurality of straps disposed in a periphery of the main body. The wrapping sheet includes a rupturable portion that is configured to rupture and split the wrapping sheet into a front portion and a rear portion at airbag deployment, and a plurality of through holes each for receiving the straps in a vicinity of the rupturable portion in the front portion. The deployed airbag is shrank and tied toward the storage by passing the straps through the through holes and tying them so the straps do not come off of the through holes.

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Kiyosu, Japan

Akira Yasuda