Patent ID: 11958432
Assignee: DAICEL CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 15:
16. An igniter holding structure, comprising:
an igniter including an ignition portion provided with an ignition agent and a conductive pin extending from the ignition portion;
an attachment portion made of a metal and including,
a through hole through which the igniter penetrates, and
a circumferential wall portion defining in an inner side thereof a connector insertion portion for allowing a connector to be connected, the circumferential wall portion including a deep-side circumferential wall portion including an exposed surface that is exposed to the connector insertion portion at a side of the ignition portion, a front-side circumferential wall portion at a side of the conductive pin and having an inner diameter larger than an inner diameter of the deep-side circumferential wall portion, and formed on a more front side than the deep-side circumferential wall portion in an insertion direction of the connector with respect to the connector insertion portion, and a connecting portion forming an annular step between the deep-side circumferential wall portion and the front-side circumferential wall portion by connecting the deep-side circumferential wall portion to the front-side circumferential wall portion;
a first resin portion made of a resin, provided between the igniter and the attachment portion, and holding the igniter in a manner that the ignition portion and a distal end of the conductive pin are located opposite each other across the through hole and the conductive pin is surrounded by the circumferential wall portion; and
a second resin portion made of a resin and provided in the front-side circumferential wall portion, the second resin portion foil ling the connector insertion portion together with the exposed surface, the second resin portion is provided separated from the first resin portion on the inner side of the circumferential wall portion in a manner that the exposed surface is formed in the circumferential wall portion,
wherein the exposed surface is formed continuously around an entire circumference in an inner circumferential direction of the circumferential wall portion, and
the deep-side circumferential wall portion extends from the connecting portion in the insertion direction and the front-side circumferential wall portion extends from the connecting portion in a direction opposite to the insertion direction.