IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0036296
(2011-02-28)
|
등록번호 |
US-8459694
(2013-06-11)
|
우선권정보 |
JP-2010-45601 (2010-03-02); JP-2010-192680 (2010-08-30) |
발명자
/ 주소 |
- Chen, Jianlin
- Kashitani, Yoshitaka
- Uemura, Takashi
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
3 |
초록
▼
A gas generating device includes a housing and a squib. The housing includes a housing body which accommodates a gas generating agent, a holder which holds a squib, and a connector which connects the housing and the holder to each other. A housing body is connected to the holder so that an annular c
A gas generating device includes a housing and a squib. The housing includes a housing body which accommodates a gas generating agent, a holder which holds a squib, and a connector which connects the housing and the holder to each other. A housing body is connected to the holder so that an annular contact portion is pressed toward the holder. The holder includes a holder body and a resinous molding portion which is interposed between the holder body and the squib. The resinous molding portion includes a flange portion with which the annular contact portion comes into contact. The holder body includes a support portion capable of supporting the flange portion when the housing body and the holder are connected to each other by the connector.
대표청구항
▼
1. A gas generating device comprising: a housing which is filled with a gas generating agent generating a gas during combustion; anda squib which is accommodated in the housing to ignite the gas generating agent,wherein the housing includes a metallic housing body which forms an accommodation portio
1. A gas generating device comprising: a housing which is filled with a gas generating agent generating a gas during combustion; anda squib which is accommodated in the housing to ignite the gas generating agent,wherein the housing includes a metallic housing body which forms an accommodation portion accommodating the gas generating agent, a holder which includes a metallic holder body and a resinous molding portion, the resinous molding portion holds the squib and is formed of a synthetic resin and is interposed between the holder body and the squib, and the holder body has a caulking portion which connects the housing body and the holder to each other,wherein the housing body is formed in a substantially cylindrical shape and includes an annular contact portion coming into contact with an end surface of the holder that faces toward the gas generating agent, the housing body being connected to the holder by the caulking portion while the annular contact portion is pressed toward the holder in the axial direction of the housing body,wherein the squib is integrally molded with the holder to be supported by the holder when the resinous molding portion is molded,wherein the resinous molding portion includes a flange portion which comes into contact with the entire periphery of a surface of the annular contact portion on the side of the holder,wherein the holder body includes a support portion capable of supporting the flange portion pressed while coming into contact with the annular contact portion when the housing body and the holder are connected to each other by the caulking connector,wherein the annular contact portion, the flange portion, and the support portion are disposed in parallel so as to overlap with each other in the axial direction of the housing body; and while the flange of the resinous molding portion is arranged between the annular contact portion and support portion of the holder body, the caulking portion presses against the annular contact portion of the housing body and toward the support portion of the holder body in the axial direction of the housing body and creates air-tightness between the housing body and the holder;wherein the caulking portion extends from the support portion of the holder body, overlaps the annular contact portion in the axial direction of the housing body and substantially covers an entire periphery of an upper surface side of an outer peripheral edge of the annular contact portion, andwherein the support portion has a plate shape with thickness along the axial direction of the housing body, and the thickness of the support portion is larger than a thickness of the flange portion in the axial direction of the housing body. 2. The gas generating device according to claim 1, wherein the housing body is formed in a cup shape with a bottom, and the annular contact portion is disposed at the peripheral edge of an opening so as to protrude in a flange shape, andwherein the caulking portion is formed around the annular contact portion. 3. The gas generating device according to claim 2, wherein the gas generating device is used as an actuation device of an inflator. 4. A gas generating device, which comprises a housing filled with a gas generating agent and a squib arranged in the housing to ignite the gas generating agent; the housing including a housing body holding the gas generating agent, a holder integrally formed with and supporting the squib, and a pressing connector connecting the housing body and the holder while maintaining air-tightness therebetween;the housing body having a substantially cylindrical shape and an annular contact portion having a bottom surface extending radially from and perpendicularly to the cylindrical shape;the holder including a metallic holder body and a resinous molding portion, the resinous molding portion being interposed between the squib and the holder body and holding the squib, the holder body including a support portion extending radially into the resinous molding portion, the resinous molding portion including a flange portion interposed between the annular contact portion of the housing body and the support portion of the holder, the flange having parallel upper and bottom surfaces, the upper surface of the flange contacting the bottom surface of the annular contact portion;the support portion of the holder body having a supporting surface contacting a lower surface of the flange portion of the resinous molding portion, the supporting surface of the support portion supporting the flange when the flange portion is pressed toward the support portion; andthe upper and the bottom surfaces of the flange portion, the support surface of the support portion and the bottom surface of the annular contact portion being parallel to and overlapping each other in the axial direction of the housing body,wherein the pressing connector presses the annular contact portion against the flange portion and toward the supporting surface of the support portion in the axial direction of the housing body, elastically deforming the flange portion and creating air-tightness between the housing body and the holder. 5. The gas generating device according to claim 4, wherein the support portion has a plate shape with a thickness along the axial direction of the housing body, and the thickness of the support. portion is larger than a thickness of the flange portion in the axial direction of the housing body. 6. The gas generating device according to claim 5, wherein the annular contact portion has an outer peripheral surface, and the pressing connector comprises a caulking portion arranged within the holder body, the caulking portion extending from the support portion of the holder body, overlapping the outer peripheral surface of the annular contact portion and substantially covering the upper surface of the annular contact portion. 7. The gas generating device according to claim 5, wherein the housing body has a cup shape, the annular contact portion is disposed at an opening of the cup and protrudes in a flange shape, and wherein the pressing connector is formed around the annular contact portion. 8. The gas generating device according to claim 7, wherein the gas generating device is used as an actuation device of an inflator. 9. The gas generating device according to claim 7, wherein the pressing connector includes a male screw which is formed in the outer peripheral surface of the annular contact portion and a female screw which is formed in the housing body so as to be threaded into the male screw. 10. The gas generating device according to claim 4, wherein the housing body has a cup shape, the annular contact portion is disposed at an opening of the cup and protrudes in a flange shape, and wherein the pressing connector is formed around the annular contact portion. 11. The gas generating device according to claim 10, wherein the gas generating device is used as an actuation device of an inflator. 12. The gas generating device according to claim 4, wherein the gas generating device is used as an actuation device of an inflator,wherein the substantially cylindrical shape of the housing body extends from the outer peripheral wall of the inflator and covers the outer peripheral side of the holder, andwherein the housing body includes a caulking portion which serves as the pressing connector and is provided by pressing and caulking a leading end side of the housing body distant from the gas generating agent to the end surface of the holder body distant from the gas generating agent in the axial direction of the housing body.
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