Daicel Chemical Industries, Ltd.

Daicel Corporation

Kenji Numoto

Naoki Matsuda

Yasunori Iwai

Masoto Hirooka

Masayuki Yamazaki

Nobuyuki Katsuda

Tomoharu Kobayashi

Mikio Yabuta

Teppei Hanano

Masato Hirooka

Eiichi Ryobo

A gas generator for a restraining device includes:

Gas generator for restraining device

Gas generator

The present application provides a gas generator including: a cylindrical housing with a gas discharge port, one end of the tubular housing being closed by a closing member including a disk-shaped main body portion, an annular projection portion and the peripheral surface of the annular projection portion, a transfer charge chamber housing defining a transfer charge chamber charged with a transfer charge and being attached to the closing member, the transfer charge chamber housing having a cup-like shape including a flame-transferring hole at a bottom surface, a flange portion and a annular wall surface extending in the axial direction of the housing from the flange portion, being mounted such that the annular wall surface thereof is fitted into an annular groove, and being fixed by the flange portion pressed in the axial direction by a supporting member and a sealing member disposed in a remaining space of the annular groove and sealing between the tubular housing and the closing member.

Gas generator and method for assembling same

An actuator includes an ignition device having an igniter main body fixed to an igniter collar and a cylinder connected to the igniter collar. The cylinder has a first sliding chamber located in a position facing the ignition device and a second sliding chamber formed in a direction perpendicular to the first sliding chamber. A first piston is disposed inside the first sliding chamber, one end surface of the first piston having a first inclined surface inclined in one direction, and the other end surface opposing the ignition device, and a second piston is disposed inside the second sliding chamber. A circumferential surface of the second piston is provided with a recess formed with a second inclined surface inclining in the central axis direction, and the second piston is provided such that the first inclined surface abuts against the second inclined surface.

Actuator

A gas generator, relating to a gas generator for a side air bag or the like, is provided. The gas generator has an inner cylindrical member is stored in a housing, wherein the inner cylindrical member has a second outside diameter portion abutting against the inner peripheral surface of the housing, and a first outside diameter portion smaller in outside diameter than the second outside diameter portion, the tip end of the first outside diameter portion side abuts against the closed end portion (one end portion) of the housing, the filter is provided on the outside of the inner cylindrical member in the radial direction of the first outside diameter portion, and the ignition means is provided on the opposite end portion (the other end) from the closed end portion of the housing.

Gas generator for airbag

A gas generator that can prevent erroneous operation in which the combustion of a gas generating agent inside one combustion chamber is caused by the combustion of a gas generating agent in the other combustion chamber. Two combustion chambersare separated by a partition wall. The partition wallis fixed by discontinuous protrusionsformed in a housing. Air tightness between two combustion chambersis ensured by two retainers

A gas generator for an airbag allows maintaining combustibility as originally designed. An ignition energy generated by an activation of a first igniterflows via a first communication hole, a first intermediate chamberand second communication holes, into a second combustion chamber, to cause a gas generating agentto ignite and burn. The ignition energy flows into the second combustion chamberwith making a detour, and therefore, the gas generating agent prevents from broken by the impact and the combustibility thereof is never changed.

Gas generator for an air bag

A dual-type gas generator for inflating air bags is provided in which a first igniter structure having a first combustion chamber accommodating a first gas generating material and a second igniter structure having a second combustion chamber accommodating a second gas generating material both exhaust, when activated, to exhaust gas to a common filter chamber. When the igniter structures are intended to be activated separately and with a time lag, gas generated in the first chamber often flows into the second chamber and may ignite the second gas generating material. This malfunction can be prevented by various flame-transferring preventing structures that preclude direct flow of gas from the first chamber into the second chamber through the common filter chamber.

A gas generator, relating to a gas generator for a side air bag or the like, is provided. The gas generator has an inner cylindrical member stored in a housing, wherein the inner cylindrical member has a second outside diameter portion abutting against the inner peripheral surface of the housing, and a first outside diameter portion smaller in outside diameter than the second outside diameter portion, the tip end of the first outside diameter portion side abuts against the closed end portion (one end portion) of the housing, the filter is provided on the outside of the inner cylindrical member in the radial direction of the first outside diameter portion, and the ignition means is provided on the opposite end portion (the other end) from the closed end portion of the housing.

Growing community of inventors

Hyogo, Japan

Kenji Numoto