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公开(公告)号：US11345294B2
公开(公告)日：2022-05-31
申请号：US16954923
申请日：2018-12-14
申请人： KOBE STEEL, LTD.
发明人： Toru Hashimura , Taiki Yamakawa , Yasuhiro Maeda , Kenichi Watanabe , Junya Naito , Akihiko Tatsumi
摘要： A vehicle structure includes a first member that extends in a vehicle width direction, second members that extend in a front-back direction that are inserted in the front-back direction with respect to the first member, and third members that are arranged at end portions of the first member in the vehicle width direction and joined to the end portions.
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公开(公告)号：US11072373B2
公开(公告)日：2021-07-27
申请号：US16491894
申请日：2018-03-15
发明人： Toru Hashimura , Taiki Yamakawa , Yasuhiro Maeda
摘要： A vehicle structural member includes an elongate hollow member having an integrated structure, and supporting members joined to the elongate hollow member. The elongate hollow member includes: a first portion that includes a first pipe, a second pipe disposed outside the first pipe and extending along the first pipe, and a connection portion extending along the first pipe and the second pipe, formed integrally with the first pipe and the second pipe, and connecting the first pipe and the second pipe; and a second portion that includes the first pipe continuing from the first portion, and does not include the second pipe.
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公开(公告)号：US12104719B2
公开(公告)日：2024-10-01
申请号：US17286924
申请日：2019-12-04
申请人： KOBE STEEL, LTD.
发明人： Yasuhiro Maeda , Toru Hashimura , Taiki Yamakawa
IPC分类号： F16L13/02 , F16L13/007 , F16L13/14
CPC分类号： F16L13/147 , F16L13/007 , F16L13/02
摘要： The element joint is obtained by joining: a long pipe; a short pipe made of a quality of material having a strength equal to or higher than a strength of the long pipe; and a plate material made of a quality of material having a strength equal to or higher than a strength of the short pipe. In the element joint, at least one member of the long pipe and the short pipe includes a pipe-shaped portion, and the pipe-shaped portion of the one member is pipe-expanded and joined to the other member by press-fitting. The short pipe and the plate material are welded to each other.
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公开(公告)号：US12083570B2
公开(公告)日：2024-09-10
申请号：US18189093
申请日：2023-03-23
申请人： KOBE STEEL, LTD.
发明人： Yasuhiro Maeda , Toru Hashimura , Taiki Yamakawa
CPC分类号： B21C23/085 , B21C26/00
摘要： An extruded material includes a peripheral wall having a closed loop-shaped cross-section and defining a hollow, and a middle rib connected to an inner peripheral surface of the peripheral wall and dividing the hollow. The extruded material is provided with a corrected portion set at a predetermined portion in a longitudinal direction and subjected to correction processing, and an uncorrected portion not subjected to the correction processing. The peripheral wall is expanded outward with respect to an original shape of the uncorrected portion in the corrected portion. While the middle rib is curved with respect to an imaginary straight line connecting connecting portions connected with the peripheral wall at both end portions of the middle rib in the uncorrected portion, the middle rib has a smaller degree of curvature than the original shape of the uncorrected portion in the corrected portion.
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公开(公告)号：US11946580B2
公开(公告)日：2024-04-02
申请号：US17597696
申请日：2020-07-16
申请人： KOBE STEEL, LTD.
发明人： Yasuhiro Maeda , Toru Hashimura , Taiki Yamakawa
CPC分类号： F16L41/08 , B21D39/06 , B21D39/206 , B21D53/88 , F16B17/006
摘要： A joined body includes a tubular first member, and a second member including a plate-shaped wall portion in which a through-hole is formed, the first member being inserted into the through-hole. The collar member is interposed between the first member and the second member in at least a part of the hole peripheral wall of the through-hole. The first member and the second member are joined by expanding the first member at a portion corresponding to the through-hole.
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公开(公告)号：US11701701B2
公开(公告)日：2023-07-18
申请号：US17762243
申请日：2020-09-14
申请人： Kobe Steel, Ltd.
发明人： Yasuhiro Maeda , Toru Hashimura , Taiki Yamakawa
IPC分类号： B21D39/20
CPC分类号： B21D39/206
摘要： A method joins members for joining a first member being cylindrical and a second member being plate-shaped and having an opening. This method includes: inserting a first member into an opening of the second member; inserting an elastic body into the first member; guiding an outer diameter side of the first member with a pair of outer dies on both sides of the second member; and compressing an elastic body in the first member with a pair of inner dies. The inner dies compress the elastic body within a range in which the outer dies are positioned.
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公开(公告)号：US11110874B2
公开(公告)日：2021-09-07
申请号：US16488555
申请日：2018-03-13
申请人： KOBE STEEL, LTD.
IPC分类号： B60R19/03 , B21D53/88 , B21D39/20 , B21D39/06 , B21D39/04 , B60R19/18 , B21D39/03 , B60R19/24 , B60R19/04 , B60R19/30
摘要： A method for joining members according to an embodiment of the present invention includes: providing a bumper stay including two integrated pipe portions extending in an identical direction, the bumper stay including a recess provided between the pipe portions being adjacent to each other, the recess extending in a longitudinal direction of the pipe portions from end surfaces of the pipe portions, a part of the recess serving as a locking portion, and a bumper beam including a rear inclined wall formed with two hole portions into which the pipe portions of the bumper stay are insertable respectively; inserting the bumper stay into the hole portions of the bumper beam until the locking portion abuts on the rear inclined wall; and pipe-expanding an insertion portion of the bumper stay into the bumper beam to join the insertion portion to the bumper beam by press-fitting.
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公开(公告)号：US12109605B2
公开(公告)日：2024-10-08
申请号：US17289149
申请日：2019-10-10
申请人： Kobe Steel, Ltd.
发明人： Taiki Yamakawa , Toru Hashimura , Yasuhiro Maeda
CPC分类号： B21D39/044 , B21D39/20 , B21D41/02 , B21D53/88 , B60R19/24
摘要： A bead forming method includes the steps of preparing a bumper stay having a partition wall that partitions an internal space and extends in a longitudinal direction, an elastic body that can be inserted into the bumper stay, and a pusher that presses the elastic body; inserting the elastic body into the bumper stay and arranging the elastic body in the bumper stay so as not to come into contact with the partition wall; and forming a buckling bead by compressing the elastic body in the longitudinal direction of the bumper stay by the pusher to expand the elastic body outward in a radial direction without coming into contact with the partition wall, thereby bulging a part of an outer wall of the bumper stay outward in the radial direction without deforming the partition wall.
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公开(公告)号：US11969777B2
公开(公告)日：2024-04-30
申请号：US17754004
申请日：2020-10-14
申请人： KOBE STEEL, LTD.
发明人： Taiki Yamakawa , Toru Hashimura , Yasuhiro Maeda
CPC分类号： B21D39/04 , B21D39/206 , B21D53/88 , B29C65/70
摘要： A structure includes: a first member made of metal having a tubular shape, and having a through-insertion hole; a second member made of resin and joined to the first member; and a third member made of metal having a tubular shape, and inserted through inside the first member. The third member is tube-expanded toward the first member and joined to the first member by press-fitting.
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公开(公告)号：US11472359B2
公开(公告)日：2022-10-18
申请号：US16977456
申请日：2019-02-04
申请人： KOBE STEEL, LTD.
发明人： Taiki Yamakawa , Toru Hashimura , Yasuhiro Maeda
摘要： A structural member for a vehicle includes bumper stays having a tubular configuration and fixed to each of front ends of a pair of front side members included in a vehicle, and a tubular bumper beam provided with holes and into which the bumper stay is inserted. Each of the bumper stays includes a first shock absorbing portion and a second shock absorbing portion provided adjacent to the first shock absorbing portion on an outer side.
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