公开(公告)号：US09102303B2

公开(公告)日：2015-08-11

申请号：US14186096

申请日：2014-02-21

Applicant: Daicel Corporation

Inventor： Masakazu Tokuda ,  Tomoharu Kobayashi ,  Masayuki Yamazaki ,  Kenji Fukumoto ,  Katsuya Habu

IPC: B60R21/272 ,  B60R21/26

CPC classification number: B60R21/272 ,  B60R2021/26011

Abstract: A gas generator includes: a pressurized gas chamber formed by a cylindrical pressurized gas chamber housing filled with a pressurized gas; a combustion chamber connected to a first end portion of the pressurized gas chamber and including an ignition device and a gas generating agent therein, a diffuser portion connected to a second end portion of the pressurized gas chamber and provided with a gas discharge port; a first rupturable plate blocking a first communication passage between the pressurized gas chamber and the combustion chamber; a second rupturable plate blocking a second communication passage between the pressurized gas chamber and the diffuser portion; and a filter disposed and positioned in the pressurized gas chamber to cover the second rupturable plate, allowing, during actuation, the combustion gas from the combustion chamber and the pressurized gas to pass therethrough and be discharged therefrom in response to rupturing the second rupturable plate.

Abstract translation: 气体发生器包括：加压气室，其由填充有加压气体的圆柱形加压气体室构成; 连接到加压气体室的第一端部并且在其中包括点火装置和气体发生剂的燃烧室，连接到加压气体室的第二端部并具有气体排出口的扩散器部分; 第一可破裂板，其阻塞加压气体室和燃烧室之间的第一连通通道; 第二可破裂板，阻塞加压气体室和扩散器部分之间的第二连通通道; 以及设置并定位在加压气体室中以覆盖第二可破裂板的过滤器，其允许在致动期间来自燃烧室和加压气体的燃烧气体通过，并且响应于破裂第二可破裂板而从其中排出。

公开(公告)号：US11555613B2

公开(公告)日：2023-01-17

申请号：US16489233

申请日：2018-03-13

Applicant: DAICEL CORPORATION

Inventor： Kenji Fukumoto

IPC: B60R21/264 ,  F23R5/00 ,  C06D5/00

Abstract: A gas generator includes, a housing provided with a gas discharge port, an ignition chamber, accommodating an igniter and a transfer charge, provided on an end portion of the housing, a combustion chamber disposed within the housing and accommodating a gas generating agent, a rupturable closing member partitioning the combustion chamber from the ignition chamber and including a rupturable portion ruptured upon an actuation of the gas generator, and an inner tube extending from the closing member toward the gas discharge port inside the combustion chamber. The inner tube defines outside thereof a space containing the gas generating agent, and defines inside a hollow space. The inner tube is provided with a plurality of through holes. The inner tube includes one end communicating the hollow space with the ignition chamber to transfer the transfer charge in a burning state toward an opposite end when the rupturable portion is ruptured.

公开(公告)号：US10214176B2

公开(公告)日：2019-02-26

申请号：US15509604

申请日：2015-08-24

Applicant: DAICEL CORPORATION

Inventor： Kenji Fukumoto ,  Tomoharu Kobayashi

IPC: B60R21/272 ,  B60R21/274

Abstract: The present invention provides a gas generator, including in a cylindrical housing, an ignition device chamber provided with an ignition device, a gas inflow chamber having a gas discharge port and a pressurized gas chamber being arranged in the above order from the first end, a rupturable plate closing between the pressurized gas chamber and the gas inflow chamber and being fixed to an annular fixing portion, a breaking device for the rupturable plate being arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base, a rod main body which extends from the base towards the rupturable plate, and an enlarged-diameter portion at a distal end of the rod main body, and during actuation, the base moving in the axial direction, the enlarged-diameter portion being positioned inside the pressurized gas chamber after punching out the rupturable plate, and the rod main body portion being positioned so as to oppose the annular fixing portion in a radial direction, a pressurized gas passing through a gas passage and then is discharged from the gas discharge port, the gas passage including a first annular passage in which a width between the enlarged-diameter portion and the annular fixing portion varies and a second annular passage between the rod main body portion and the annular fixing portion, a cross-sectional area of the second annular passage being the smallest among the cross-sectional area of the second annular passage, an area of a minimum width portion of the first annular passage and a total opening area of the gas discharge port, and Q

公开(公告)号：US09751492B2

公开(公告)日：2017-09-05

申请号：US15030420

申请日：2014-10-24

Applicant: DAICEL CORPORATION

Inventor： Tomoharu Kobayashi ,  Masayuki Yamazaki ,  Kenji Fukumoto

IPC: B60R21/274 ,  B60R21/272 ,  F16K17/40 ,  B60R21/26

CPC classification number: B60R21/274 ,  B60R21/272 ,  B60R2021/26029 ,  F16K13/04

Abstract: The present invention provides a gas generator in which an outer container is formed by a pressurized gas bottle and a gas generation chamber housing, and a closing member closes therebetween, a gas inflow chamber formed with a gas discharge port is provided between a gas generation chamber and a pressurized gas chamber, a partition wall provided with a rupturing member separates the gas inflow chamber from the gas generation chamber.

公开(公告)号：US11685335B2

公开(公告)日：2023-06-27

申请号：US17435921

申请日：2019-09-26

Applicant: DAICEL CORPORATION

Inventor： Akifumi Noda ,  Kenji Fukumoto ,  Shinichiro Ukita

IPC: B60R21/264 ,  B60R21/26

CPC classification number: B60R21/2644 ,  B60R2021/26041 ,  B60R2021/2648

Abstract: An igniter assembly includes an igniter, a collar, and a holding part, a cup body having a cylindrical peripheral wall and a lid wall and a closing part defining an accommodating space with the cup body, the peripheral wall is sectioned, in an axial direction, into a contact region in contact with the closing part and a noncontact region not in contact with the closing part, the holding part includes a base part covering the contact region and a surrounding wall formed continuously to the base part and surrounding the noncontact region, and a fragile part is formed in the holding part between a first area including at least a part of the base part and a second area including a tip end of the surrounding wall, and thus the second area deforms radially outward preferentially when a load is applied to the surrounding wall by the igniter activated.

公开(公告)号：US10723308B2

公开(公告)日：2020-07-28

申请号：US16313295

申请日：2017-07-03

Applicant: DAICEL CORPORATION

Inventor： Kenji Fukumoto ,  Tomoharu Kobayashi

IPC: B60R21/264 ,  B60R21/262 ,  B60R21/261

Abstract: The present invention provides a gas generator, including: in a cylindrical housing, a cup-shaped member separating the combustion chamber in a cylindrical housing main body portion from the diffuser portion, the cup-shaped member being disposed such that a bottom surface thereof is positioned on the side of a first end of the cylindrical housing main body portion, an opening thereof is positioned on the side of a second end of the cylindrical housing main body portion, and a first gap which allows the combustion chamber to communicate with the diffuser portion, is formed between the the cup-shaped member and an inner wall surface of the cylindrical housing main body portion; and a filter disposed in a space surrounded by the cup-shaped member and the diffuser portion, the filter being a cup-shaped filter having a base, a circumferential wall and an opening, and the filter being provided such that, the base of the filter abuts on a closed end surface of the diffuser portion, an end surface of the opening of the filter faces the bottom surface of the cup-shaped member, and the circumferential wall of the filter abuts, from inside, on the circumferential wall of the cup-shaped member including a plurality of the communication holes, and being disposed with a second gap formed between the filter and the gas discharge ports.

公开(公告)号：US09944250B2

公开(公告)日：2018-04-17

申请号：US15126660

申请日：2015-04-06

Applicant: DAICEL CORPORATION

Inventor： Tomoharu Kobayashi ,  Masayuki Yamazaki ,  Kenji Fukumoto

IPC: B60R21/274 ,  B60R21/272 ,  B60R21/264 ,  B60R21/26

CPC classification number: B60R21/274 ,  B60R21/264 ,  B60R21/272 ,  B60R2021/26029

Abstract: The present invention provides a gas generator including an ignition device chamber provided with the ignition device, a gas inflow chamber provided with a gas discharge port, and a pressurized gas chamber being arranged in order from the first end; a closing member including a fixing portion and a rupturable plate fixed to the fixing portion and closing between the pressurized gas chamber and the gas inflow chamber; and a breaking device for the rupturable plate being arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base portion, which has an outer circumferential surface abutted against an inner circumferential wall surface of the cylindrical housing, and a rod extending from the base portion to the rupturable plate, the fixing portion of the closing member including an annular plate surface portion, extending radially inward from the inner circumferential wall surface of the cylindrical housing, and a cylindrical wall portion extending from an inner circumference of the annular plate surface portion towards the gas inflow chamber, the rupturable plate of the closing member being fixed by welding to the annular plate surface portion of the fixing portion from the pressurized gas chamber, the breaking device being disposed such that a tip end of the rod is enclosed by the cylindrical wall portion of the fixing portion of the closing member.

公开(公告)号：US20230391257A1

公开(公告)日：2023-12-07

申请号：US18237118

申请日：2023-08-23

Applicant: DAICEL CORPORATION

Inventor： Eric Aliwarga ,  Kenji Fukumoto ,  Masayuki Yamazaki

IPC: B60Q9/00 ,  G08B21/04

CPC classification number: B60Q9/008 ,  G08B21/0446

Abstract: An occupant protection device includes a first sensor configured to output vehicle information indicating a traveling state of a vehicle and a situation around the vehicle, a second sensor configured to output occupant information indicating a seating state of an occupant, a stimulus application unit that is to be worn by the occupant and is configured to apply a stimulus to the occupant, and a controller configured to control the stimulus application unit. The controller predicts an impact to be received by the vehicle, determines a stimulus application content by the stimulus application unit necessary for correcting a posture of the occupant to a posture prepared for the impact when the impact is predicted, and activates the stimulus application unit in accordance with the determined stimulus application content and thus corrects the posture of the occupant prior to a timing when the vehicle receives the impact.

公开(公告)号：US11780398B2

公开(公告)日：2023-10-10

申请号：US17801187

申请日：2021-01-26

Applicant: DAICEL CORPORATION

Inventor： Kenji Fukumoto ,  Tomoki Hashizume ,  Masayuki Yamazaki

IPC: B60R21/207 ,  B60N2/22 ,  B60N2/42

CPC classification number: B60R21/207 ,  B60N2/22 ,  B60N2/42

Abstract: A coupling structure includes a first coupling portion formed by one end portion of a first tube, and a second coupling portion formed by one end portion of a second tube, and is configured such that the first coupling portion is inserted in the second coupling portion, the first coupling portion and the second coupling portion are coupled, with the second tube being pivotable with respect to the first tube, and a gap is formed between an outer surface of the first coupling portion and an inner surface of the second coupling portion in a first state in which a fluid is not flowing through the flow path, and in a second state in which the fluid is flowing through the flow path, pressure of the fluid causes the first coupling portion to deform to expand toward an outer side of the flow path to reduce the gap.

公开(公告)号：US20220410833A1

公开(公告)日：2022-12-29

申请号：US17778117

申请日：2020-10-12

Applicant: DAICEL CORPORATION

Inventor： Shinichiro Ukita ,  Tomoki Hashizume ,  Kenji Fukumoto ,  Masayuki Yamazaki ,  Nobuyuki Katsuda

IPC: B60R21/207 ,  B60R21/261 ,  B60R21/233 ,  B60R21/231

Abstract: An airbag device includes a seat frame that forms a skeleton of a vehicle seat on which an occupant of a vehicle sits; an airbag that is disposed on a backrest portion that supports a back of the occupant in the vehicle seat and that is deployed by supply of gas; and a gas generator that is disposed at a seating surface portion that supports buttocks of the occupant in the vehicle seat and that generates gas to be supplied to the airbag; where a part that is a portion of the seat frame and includes at least a portion of a back frame forming a skeleton of the backrest portion, is formed as a flow tube that connects to the airbag to supply gas generated by the gas generator to the airbag.