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1.发明申请公开(公告)号：US20200094773A1
公开(公告)日：2020-03-26
申请号：US16577725
申请日：2019-09-20
Applicant: Benteler Steel/Tube GmbH
Inventor： Daniel Lücke , Michael Markert , Dirk Tegethoff , Marcel Wellpott
Abstract: This invention concerns a tubular element for a gas pressure vessel of an airbag module, in particular of a vehicle, wherein the tubular element (1) consists of high-strength steel, has a first and a second end (17, 18) and from the first end (17) to the second end (18) the tubular element (1) has an undeformed section (11), a transition section (12) and a tapering section (13) and on the tapering section (13) at least one radially outwardly extending collar (14) is formed, characterized in that the collar (14) is separated from the transition section (12) by a first length section (130) having an outer diameter (A1) smaller than the outer diameter (A2) of the collar (14) and the wall thickness of the collar (14) is greater than the wall thickness of the first length section (130). Furthermore, the invention concerns a gas pressure vessel and a process for manufacturing a tubular element according to the invention (1).
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公开(公告)号：US11873944B2
公开(公告)日：2024-01-16
申请号：US16577725
申请日：2019-09-20
Applicant: Benteler Steel/Tube GmbH
Inventor： Daniel Lücke , Michael Markert , Dirk Tegethoff , Marcel Wellpott
CPC classification number: F16L9/006 , B21C1/24 , B60R21/26 , B21C37/16 , B21D41/00 , B60R2021/26076 , B60R2021/26082
Abstract: This invention concerns a tubular element for a gas pressure vessel of an airbag module, in particular of a vehicle, wherein the tubular element (1) consists of high-strength steel, has a first and a second end (17, 18) and from the first end (17) to the second end (18) the tubular element (1) has an undeformed section (11), a transition section (12) and a tapering section (13) and on the tapering section (13) at least one radially outwardly extending collar (14) is formed, characterized in that the collar (14) is separated from the transition section (12) by a first length section (130) having an outer diameter (A1) smaller than the outer diameter (A2) of the collar (14) and the wall thickness of the collar (14) is greater than the wall thickness of the first length section (130). Furthermore, the invention concerns a gas pressure vessel and a process for manufacturing a tubular element according to the invention (1).
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公开(公告)号：US11446729B2
公开(公告)日：2022-09-20
申请号：US17545630
申请日：2021-12-08
Applicant: Benteler Steel/Tube GmbH
Inventor： Daniel Lücke , Michael Markert , Marcel Wellpott , Dirk Tegethoff
IPC: B21D39/04
Abstract: An inner diameter of a first end of a tubular component, positioned in relation to a first die, is reduced through relative movement between the tubular component and the first die such as to produce a first conical area between first and second ends of the tubular component. The first conical area is then formed through relative movement of a second die to create in a longitudinal section of the first conical area an outer circumferential embossment and an inner bead having an inner diameter smaller than the inner diameter of the first end. The first end is widened through insertion of an inner tool, while the tubular component is supported on an outside in a mold cavity of an outer tool. An inner contour with an internal stop is formed as an outer surface of the first end of the tubular component rests flatly in the mold cavity.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20180169732A1
公开(公告)日：2018-06-21
申请号：US15847446
申请日：2017-12-19
Applicant: Benteler Steel/Tube GmbH
Inventor： Daniel Lücke , Leonhard Rose , Dirk Tegethoff , Marcel Wellpott
Abstract: In a method of producing a tubular structure for a gas generator, a tubular body is positioned relative to a forming device having inner and outer tools, which are moved relative to an end portion of the tubular body until an inner circumferential surface of a neck of the end portion rests against a support surface of the inner tool to reduce a diameter of the end portion by a tool contour of the outer tool and thereby form a shoulder. The outer tool is held in position upon the end portion and the neck inner circumferential surface is calibrated by a calibrating surface on a calibrating member of the inner tool while an outer circumferential surface of the neck is supported by the outer tool, as the inner tool is removed from the end portion. The outer tool is then removed from the end portion of the tubular body.
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公开(公告)号：US20220176436A1
公开(公告)日：2022-06-09
申请号：US17545630
申请日：2021-12-08
Applicant: Benteler Steel/Tube GmbH
Inventor： Daniel Lücke , Michael Markert , Marcel Wellpott , Dirk Tegethoff
IPC: B21D39/04
Abstract: An inner diameter of a first end of a tubular component, positioned in relation to a first die, is reduced through relative movement between the tubular component and the first die such as to produce a first conical area between first and second ends of the tubular component. The first conical area is then formed through relative movement of a second die to create in a longitudinal section of the first conical area an outer circumferential embossment and an inner bead having an inner diameter smaller than the inner diameter of the first end. The first end is widened through insertion of an inner tool, while the tubular component is supported on an outside in a mold cavity of an outer tool. An inner contour with an internal stop is formed as an outer surface of the first end of the tubular component rests flatly in the mold cavity.
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公开(公告)号：US11235372B2
公开(公告)日：2022-02-01
申请号：US15847446
申请日：2017-12-19
Applicant: Benteler Steel/Tube GmbH
Inventor： Daniel Lücke , Leonhard Rose , Dirk Tegethoff , Marcel Wellpott
Abstract: In a method of producing a tubular structure for a gas generator, a tubular body is positioned relative to a forming device having inner and outer tools, which are moved relative to an end portion of the tubular body until an inner circumferential surface of a neck of the end portion rests against a support surface of the inner tool to reduce a diameter of the end portion by a tool contour of the outer tool and thereby form a shoulder. The outer tool is held in position upon the end portion and the neck inner circumferential surface is calibrated by a calibrating surface on a calibrating member of the inner tool while an outer circumferential surface of the neck is supported by the outer tool, as the inner tool is removed from the end portion. The outer tool is then removed from the end portion of the tubular body.
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公开(公告)号：US11097684B2
公开(公告)日：2021-08-24
申请号：US16294666
申请日：2019-03-06
Applicant: BENTELER STEEL/TUBE GMBH
Inventor： Marcel Wellpott , Daniel Luecke , Dirk Tegethoff
IPC: B60R21/26 , B60R21/217
Abstract: The invention relates to a housing of a gas generator module for an airbag system of a motor vehicle, wherein the housing is of substantially tubular design and has a tube portion in which a plurality of stamped formations pointing into the interior of the housing are introduced over an external circumference of the housing, wherein the stamped formations in the interior of the tube portion have a stop for an internal component.
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8.发明授权公开(公告)号：US10507786B2
公开(公告)日：2019-12-17
申请号：US15537402
申请日：2015-12-18
Applicant: Benteler Steel/Tube GmbH
Inventor： Dirk Tegethoff , Leonhard Rose , Darius Wrobel , Jozef Balun
IPC: B60R21/26 , B60R21/268 , B60R21/00 , C21D6/00 , C21D9/08 , F17C1/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
Abstract: A gas pressure container for an airbag system of a motor vehicle is disclosed having a tube element with a high bursting resistance when internal pressure is being applied. The tube element includes a steel alloy and a first longitudinal portion of the tube element has a tensile strength Rm,11 higher than (>) 800 MPa, a transition temperature Tu,11 of at least −40° C., and an outer circumference U1. The tube element also includes at least one second longitudinal portion and/or additional longitudinal portions, which extend axially from the first longitudinal portion. The second longitudinal portion or the additional longitudinal portions and the first longitudinal portion are formed from a seamless or welded single-piece tube made of a uniform material, and more specifically from a hot-rolled or cold-drawn tube.
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