Abstract: The gas generator includes an igniter, a container including a container body and a lid formed relative to the container body and configured to contain a transfer charge and a housing configured to contain the igniter and the container, a predetermined region in the housing adjacent to the lid of the container being filled with a gas generating agent to be burned by a combustion product of the transfer charge burned by actuation of the igniter. The lid includes a frangible section configured to be capable of being ruptured by pressure applied by a combustion product generated by combustion of the transfer charge and a strong connection section configured to be capable of maintaining a connected state with the container body even in a case that pressure is applied by the combustion product.

Abstract: An ejector for ejecting a combustion product including, an igniter including an ignition charge and an ignition portion, a pyrotechnic agent, and a cup made of metal, the cup including a bottom surface and a peripheral wall, the peripheral wall being contiguous with a peripheral edge of the bottom surface and disposed to surround the ignition portion, the cup further including an accommodating space accommodating therein the pyrotechnic agent, the bottom surface of the cup including a through hole being defined by a plurality of through-hole peripheral edges, and the adjacent through-hole peripheral edges being connected together at a predetermined connection point, and the through hole including a narrow part, in which a width of the through hole defined by each of parts of the two through-hole peripheral edges of the plurality of through-hole peripheral edges decreases gradually with an increasing distance from a center of the bottom surface toward the peripheral edge of the bottom surface, and the narrow p

Abstract: A gas generator including an igniter, a combustion chamber, and a restriction part, the igniter including an accommodating chamber accommodating an explosive therein, an ignition portion provided in the accommodating chamber, and a separating part including a pressure receiving surface, the separating part being configured to be separable from the igniter and movable in a predetermined direction, the combustion chamber being configured to burn a gas generating agent filled outside the accommodating chamber, by the combustion of the explosive, the restriction part provided in a predetermined position in the predetermined direction from the igniter and restricting a movement of the separating part, and the separating part including a guide that directs the combustion product of the explosive by the pressure receiving surface toward the igniter, in a state where the movement of the separating part in the predetermined direction is restricted by the restriction part.

Abstract: A gas generator including, an igniter, a housing made of metal and including a gas discharge port and a combustion chamber for burning a solid gas generating agent, the solid gas generating agent being filled at a position where the solid gas generating agent can be burned by actuation of the igniter, and the housing being configured to accommodate the igniter and an isolating member including an isolating wall interposed, inside the housing, between the gas generating agent disposed in the combustion chamber and a bottom surface and a side surface of the combustion chamber, the isolating wall being made from a predetermined resin material and being in contact with the gas generating agent to apply a predetermined holding force to the gas generating agent.

Abstract: Provided is a gas generator including a housing including a top plate, a bottom plate, and a peripheral wall, the bottom plate being axially opposite the top plate, and the peripheral wall including a gas discharge port and being located between the top plate and the bottom plate. In the gas generator, an internal space of the housing is separated into a first combustion chamber and a second combustion chamber by a partition wall axially and radially partitioning the internal space of the housing, the first combustion chamber being formed to accommodate a first gas generating agent and being on the top plate side, and the second combustion chamber being formed to accommodate a second gas generating agent and being on the bottom plate side. A first igniter and a second igniter are disposed at the bottom plate, the first igniter being configured to burn the first gas generating agent, and the second igniter being configured to burn the second gas generating agent.

Abstract: The present invention provides a gas generator including: a housing having a top plate, a bottom plate located axially opposite to the top plate, and a circumferential wall located between the top plate and the bottom plate and provided with a gas discharge port; a partition wall provided with a single first communication hole, the partition wall being radially disposed in the housing to partition an interior of the housing into a first combustion chamber on the side of the top plate, which accommodates a first gas generating agent, and a second combustion chamber on the side of the bottom plate, which accommodates a second gas generating agent; a cylindrical guide member disposed between the first igniter attached to the bottom surface and the first communication hole, and provided with a second communication hole in a cylindrical wall thereof, the cylindrical guide member being disposed so as to enclose the first igniter, such that a second end opening thereof is connected to the first communication hole

Abstract: Provided is a cylindrical filter for a gas generator including a metal wire in a wound state, the metal wire including a plurality of recess portions provided on a first surface side and formed at intervals in a length direction thereof, the metal wire being wound with a surface including the recess portions facing an inner circumferential surface side of the cylindrical filter for a gas generator, and the recess portions of the metal wire being present on an inner side of the metal wire which extends from an inner circumferential surface toward an outer circumferential surface of the cylindrical filter.

Abstract: Provided is a gas generator including a housing including a top plate, a bottom plate, and a peripheral wall, the bottom plate being axially opposite the top plate, and the peripheral wall including a gas discharge port and being located between the top plate and the bottom plate. In the gas generator, an internal space of the housing is separated into a first combustion chamber and a second combustion chamber by a partition wall axially and radially partitioning the internal space of the housing, the first combustion chamber being formed to accommodate a first gas generating agent and being on the top plate side, and the second combustion chamber being formed to accommodate a second gas generating agent and being on the bottom plate side. A first igniter and a second igniter are disposed at the bottom plate, the first igniter being configured to burn the first gas generating agent, and the second igniter being configured to burn the second gas generating agent.

Abstract: An ejector for ejecting a combustion product including, an igniter including an ignition charge and an ignition portion, a pyrotechnic agent, and a cup made of metal, the cup including a bottom surface and a peripheral wall, the peripheral wall being contiguous with a peripheral edge of the bottom surface and disposed to surround the ignition portion, the cup further including an accommodating space accommodating therein the pyrotechnic agent, the bottom surface of the cup including a through hole being defined by a plurality of through-hole peripheral edges, and the adjacent through-hole peripheral edges being connected together at a predetermined connection point, and the through hole including a narrow part, in which a width of the through hole defined by each of parts of the two through-hole peripheral edges of the plurality of through-hole peripheral edges decreases gradually with an increasing distance from a center of the bottom surface toward the peripheral edge of the bottom surface, and the narrow p

Abstract: A gas generator including an igniter, a combustion chamber, and a restriction part, the igniter including an accommodating chamber accommodating an explosive therein, an ignition portion provided in the accommodating chamber, and a separating part including a pressure receiving surface, the separating part being configured to be separable from the igniter and movable in a predetermined direction, the combustion chamber being configured to burn a gas generating agent filled outside the accommodating chamber, by the combustion of the explosive, the restriction part provided in a predetermined position in the predetermined direction from the igniter and restricting a movement of the separating part, and the separating part including a guide that directs the combustion product of the explosive by the pressure receiving surface toward the igniter, in a state where the movement of the separating part in the predetermined direction is restricted by the restriction part.

Abstract: A gas generator including, an igniter, a housing made of metal and including a gas discharge port and a combustion chamber for burning a solid gas generating agent, the solid gas generating agent being filled at a position where the solid gas generating agent can be burned by actuation of the igniter, and the housing being configured to accommodate the igniter and an isolating member including an isolating wall interposed, inside the housing, between the gas generating agent disposed in the combustion chamber and a bottom surface and a side surface of the combustion chamber, the isolating wall being made from a predetermined resin material and being in contact with the gas generating agent to apply a predetermined holding force to the gas generating agent.

Abstract: The gas generator includes an igniter, a container including a container body and a lid formed relative to the container body and configured to contain a transfer charge and a housing configured to contain the igniter and the container, a predetermined region in the housing adjacent to the lid of the container being filled with a gas generating agent to be burned by a combustion product of the transfer charge burned by actuation of the igniter. The lid includes a frangible section configured to be capable of being ruptured by pressure applied by a combustion product generated by combustion of the transfer charge and a strong connection section configured to be capable of maintaining a connected state with the container body even in a case that pressure is applied by the combustion product.

Abstract: The present invention provides a gas generator including: a housing having a top plate, a bottom plate located axially opposite to the top plate, and a circumferential wall located between the top plate and the bottom plate and provided with a gas discharge port; a partition wall provided with a single first communication hole, the partition wall being radially disposed in the housing to partition an interior of the housing into a first combustion chamber on the side of the top plate, which accommodates a first gas generating agent, and a second combustion chamber on the side of the bottom plate, which accommodates a second gas generating agent; a cylindrical guide member disposed between the first igniter attached to the bottom surface and the first communication hole, and provided with a second communication hole in a cylindrical wall thereof, the cylindrical guide member being disposed so as to enclose the first igniter, such that a second end opening thereof is connected to the first communication hole

Abstract: The present invention provides a gas generator, including a cylindrical housing having therein an ignition device chamber and a pressurized gas chamber, a closing member in a circular shape having a fragile portion provided on one surface and closing between the chambers, a piston being disposed inside the ignition device chamber and having a base plate and a rod that extends in the axial direction from one surface of the base plate to abut against or face the closing member, the fragile portion being a groove formed with a curve extending from a start point A on Y1 to an end point E through a first intermediate point B on Y2, a second intermediate point C on Y1, and a third intermediate point D on Y2, where Y1 and Y2 are two straight lines drawn to be orthogonal to each other and to pass through a crossing point X2 on one surface of the closing member, the groove formed so that distances from the crossing point X2 to the respective points satisfy the following relationship: the distance to the start point

Abstract: The present invention provides a gas generator, including a cylindrical housing having therein an ignition device chamber and a pressurized gas chamber, a closing member in a circular shape having a fragile portion provided on one surface and closing between the chambers, a piston being disposed inside the ignition device chamber and having a base plate and a rod that extends in the axial direction from one surface of the base plate to abut against or face the closing member, the fragile portion being a groove formed with a curve extending from a start point A on Y1 to an end point E through a first intermediate point B on Y2, a second intermediate point C on Y1, and a third intermediate point D on Y2, where Y1 and Y2 are two straight lines drawn to be orthogonal to each other and to pass through a crossing point X2 on one surface of the closing member, the groove formed so that distances from the crossing point X2 to the respective points satisfy the following relationship: the distance to the start point A&

Abstract: A gas generator includes a metallic housing, an ignition device including an igniter assembly, and gas generating agent, the igniter assembly including an igniter main body fixed to a metallic cylindrical fixing member with a resin and a connector-connecting portion for fitting a connector, at least part of the metallic cylindrical fixing member being electro-conductive to the housing, and including an exposed portion exposed to an inner surface of the connector-connecting portion, the exposed portion of the metallic cylindrical fixing member serving as a ground terminal, when the connector is connected to the connector-connecting portion, the ground terminal being in contact with an earth terminal of the connector, a grounding lead wire of the connector being grounded to a ground circuit located outside the gas generator.

Abstract: The present invention provides a gas generator including a metallic housing, an ignition device including an igniter assembly, and gas generating agent, the igniter assembly including an igniter main body fixed to a metallic cylindrical fixing member with a resin and a connector-connecting portion for fitting a connector, at least part of the metallic cylindrical fixing member being electro-conductive to the housing, and including an exposed portion exposed to an inner surface of the connector-connecting portion, the exposed portion of the metallic cylindrical fixing member serving as a ground terminal, when the connector is connected to the connector-connecting portion, the ground terminal being in contact with an earth terminal of the connector, a grounding lead wire of the connector being grounded to a ground circuit located outside the gas generator.

Abstract: An igniter fixing structure includes a plurality of igniter bodies having an ignition portion and an electroconductive pin, each of the igniter bodies being fixed, by a resin, to a peripheral edge of a port formed in a plate-like portion serving as a fixing object, the number of the port being the same as that of the plurality of the igniter bodies, and a single retainer as a support member for the plurality of igniter bodies. The retainer has a plurality of support portions each having a hole for passing the electroconductive pin therethrough and a connection plate portion that connects the plurality of support portions, at least the support portions are embedded in the resin in a state in which the electroconductive pin passes through the hole, and at least the connection plate portion is disposed to abut against the plate-like portion.

Abstract: The present invention provides a gas generator for a restraining device of a vehicle, including: a housing being made of a resin, forming an outer shell container, having a plurality of gas discharge ports, an ignition device disposed inside the housing, a gas generating agent that is ignited and burned by activation of the ignition device, each of the gas discharge ports being formed in combination with each of a plurality of through holes of an annular plate member that is embedded in a circumferential wall surface of the housing and formed of a material selected from the group consisting of metals, ceramics, and carbon fiber, and the annular plate member being formed of an annular base plate including the plurality of through holes formed therein.

Abstract: An apparatus including and igniter comprises: an igniter, an igniter collar for fixing the igniter, a cylindrical housing forming an outer shell, the igniter collar and the cylindrical housing being assembled by laminating a wall surface at one end of the igniter collar to a wall surface at one end of the cylindrical housing in the thickness direction, and being fixed to each other by crimping from the outside the laminated part thereof, wherein igniter collar and the cylindrical housing are laminated, an outer diameter of the laminated part being within ±10% of a reference outer diameter when an outer diameter of at least one of the igniter collar and cylindrical housing is the reference outer diameter, a thickness (h2) of an inner layer in the crimped laminated part being 1.5 times or more than a crimping depth (h1).