Takata Corporation

Ryosuke Nakanishi

Yasushi Masuda

Atsuyuki Uchiyama

Akira Kokeguchi

Joji Mishina

Wataru Nakazawa

Jyoji Mishina

A curtain airbag device is provided that allows for smooth downward deployment of a curtain airbag. In one form, a C-pillar has a guide rod attached thereto for guiding a rear portion of a curtain airbag when the curtain airbag is being inflated downward. The rear portion of the curtain airbag has a link strap attached thereto. A front end of the link strap is provided with a loop which is loosely wound around the guide rod. For guiding downward movement of the link strap, a linear member extends between a lower portion of the curtain airbag and the link strap. The linear member extends through guide components. During a downward deployment process of the curtain airbag, the linear member pulls the loop of the link strap downward. Thus, the link strap moves downward smoothly along the guide rod for smooth deployment of the curtain airbag.

Curtain airbag device

An airbag is provided which securely prevents gas leakage through seams between panels and has excellent productivity. The airbaghas panels. Peripheral portions of the panelsare bonded with silicone adhesiveand also sewn together by sewing yarnsA,B. Seams of the sewing yarnsA,B may be coated by silicone sealant. The sewing yarnA composing an inner seam is thinner than the sewing yarnB composing an outer seam so that the sewing yarnA is broken during the inflation of the airbag, thereby absorbing energy.

Airbag

To provide a protective cushion for a vehicle occupant's head which can introduce gas into chambers simultaneously or with desired time lags among the chambers. A cushioncomprises an occupant-side sheetand a body-side sheetwhich are superposed on each other and sewn together so as to form vacant chambersthroughbetween the sheetsand. A cylindrical memberis disposed between upper portions of the sheets. Gas supplied through a rear endof the cylindrical memberis introduced into the chambersthroughthrough openingsand a front endof the cylindrical member

Protective cushion for vehicle occupant's head

To provide a protective cushion for a vehicle occupant's head which can introduce gas into chambers simultaneously or with desired time lags among the chambers. A cushion comprises an occupant-side sheet and a body-side sheet which are superposed on each other and sewn together so as to form vacant chambers through between the sheets and . A cylindrical member is disposed between upper portions of the sheets . Gas supplied through a rear end of the cylindrical member is introduced into the chambers through through openings and a front end of the cylindrical member

A head-protecting bag for an occupant in an automobile is provided. The bag is not likely to be caught at an inner surface of a compartment as it inflates downward along a lateral side of the compartment. The bag includes an intermediate folded-body which is formed by folding a plurality of times along folding lines extending in a longitudinal direction of the automobile. The intermediate folded-body is bellows-folded from its lower end to its upper end. As a result, the lower edge of its head-protecting bag is positioned toward the lower end side of the folded body. Since the lower edge of the bag is positioned toward the lower end side of the folded body, the folded body inflates always downward along the lateral side of the compartment.

Head-protecting bag device

Hangers of the curtain airbag are used to hang a bag body from a structural member of a vehicle. The hangers restrict the deployment direction of the bag body, and receive reaction force produced when the bag body is deployed downwards. The hanger is mounted to an ear of the bag body, and includes a strip-shaped flat plate portion and a sandwiching plate portion formed integrally with the corresponding flat plate portion. The ears of the bag body are sandwiched between inner plates and outer plates of the corresponding sandwiching plate portions. By the flat plate portion of each hanger, the bag body deploys smoothly along an inner surface of the window glass.

Curtain airbag

To provide a protective cushion for a vehicle occupant's head which can introduce gas into chambers simultaneously or with desired time lags among the chambers. A cushion comprises an occupant-side sheet and a body-side sheet which are superposed on each other and sewn together so as to form vacant chambers through between the sheets and A cylindrical member is disposed between upper portions of the sheets Gas supplied through a rear end of the cylindrical member is introduced into the chambers through through openings and a front end of the cylindrical member

In case of emergency such as a side crash of the vehicle, when gas from the inflator flows quickly forward through the gas inlet passage and reaches the closed end at the front end of the gas inlet passage, the internal pressure in the gas inlet passage increases. Then, gas is blown from the gas exhaust ports into the airbag and the airbag is inflated and deployed. At this moment, the gas exhaust ports open in the direction along the inner surface of the side portion the vehicle body, so that gas is blown from the gas exhaust ports in the same direction and the airbag is inflated and deployed downwardly like a curtain along the inner surface of the side portion of the vehicle body. In this inflation and deployment of the airbag, the airbag is inflated and deployed quickly, smoothly and reliably in a relatively narrow space between the inner surface of the side portion of the vehicle body and the passenger.

Airbag apparatus

An airbag base fabric is formed of thermoplastic synthetic filament yarns, wherein the yarn strength of the filament yarn is 7.0 g/denier or more and the fineness of the filament yarn is 200-250 denier. The fabric is thin and lightweight, which is thus excellent in accommodation, and is effective in reducing the size and weight of an airbag module.

Airbag base fabric

A bag,is formed of an occupant-side sheet,and a vehicle body-side sheet,. These sheets,are superposed on each other and joined together along their peripheries so as to form an introduction chamber,and a main chamber,between the sheets,and,. A lateral connecting line,is connected to the front side of the main chamber,and extends rearwardly from the end of the aforementioned edge in the substantially horizontal direction. The rear end of the connecting line,is spaced apart from the rear edge of the main chamber,. A vertical connecting line,extends downwardly from the rear end of the lateral connecting line,and the vertical connecting line,extend downwardly from a portion of the lateral connecting line,. The lower ends of the vertical connecting lines,are spaced apart from the lower edge of the main chamber,. Cells,communicate with each other through portions beneath the vertical connecting lines

Protective bag for vehicle occupant's head

To improve the strength in the connection between an inflator and an airbag, an area around a gas inlet,of an airbag,is fitted onto an inflator,and is bound tightly by two bands,The areas of the airbag,near the bands,are provided with stitches,extending in the circumferential direction of the inflator,The stitches,rise from the outer surface of the airbag,The areas around the gas inlet of the airbag,and the inflator,are held by saddle bands,of a holder,The stitches,are caught by the bands,when the airbag,is inflated and the airbag,is about to be slipped off, thereby securely preventing the detachment of the airbag

Connecting structure between an airbag and an inflator

A protective cushion or airbag for a vehicle occupant's head which can introduce gas into chambers simultaneously or with desired time lags among the chambers. A cushion comprises an occupant-side sheet and an body-side sheet which are superposed on each other and sewn together so as to form vacant chambers between the sheets. A cylindrical member is disposed between upper portions of the sheets. Gas supplied through a rear end of the cylindrical member is introduced into the chambers openings and a front end of the cylindrical member.

Growing community of inventors

Shiga, Japan

Ryosuke Nakanishi