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公开(公告)号：US20230405661A1
公开(公告)日：2023-12-21
申请号：US18246904
申请日：2021-09-29
发明人： Toru HASHIMURA , Artur REKETS , Yasuhiro MAEDA , Taiki YAMAKAWA
CPC分类号： B21D39/06 , B60R19/04 , B21D53/88 , B21D39/203
摘要： A bumper system includes a rear wall of a bumper beam provided with hole portions, and a bumper stay including tubular portions extending in the longitudinal direction, the tubular portions being inserted into the hole portions and joined to the hole portions by pipe expansion joining. The bumper stay includes a pulling-out obstructing portion protruding from the outer surfaces of the tubular portions in a cross section perpendicular to the longitudinal direction. The pulling-out obstructing portion abuts on the rear wall of the bumper beam in the direction in which the bumper stay is pulled out from the hole portions.
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公开(公告)号：US20190193135A1
公开(公告)日：2019-06-27
申请号：US16327888
申请日：2017-09-06
发明人： Yasuhiro MAEDA , Toru HASHIMURA , Kenichi WATANABE
摘要： In a method for joining members of the present invention, a B-pillar, a rocker, a side panel served as frame members of a vehicle body, and an elastic body are provided. The B-pillar includes a tubular portion and an extension portion extended from the tubular portion. The rocker includes a first hole portion. The side panel includes a support portion. Next, the tubular portion of the B-pillar is inserted into the first hole portion of the rocker. The elastic body is inserted into the tubular portion of the rocker. The elastic body is pressurized in an axial line L1 direction of the tubular portion of the B-pillar to be expanded outward in a radial direction of the axial line L1, so that the tubular portion of the B-pillar is expanded and deformed to be joined to the first hole portion of the rocker by press-fitting. Further, the extension portion of the B-pillar and the support portion of the side panel are joined by a method different from joining by press-fitting.
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公开(公告)号：US20190091747A1
公开(公告)日：2019-03-28
申请号：US16090822
申请日：2017-04-05
发明人： Yasuhiro MAEDA , Toru HASHIMURA , Ryohei YUKISHIGE
摘要： In a method for manufacturing a composite cross-section member, a continuous steel sheet is fed to a manufacturing device and bent and roll-formed into a predetermined cross-sectional shape, a discontinuous aluminum core is locally inserted at an arbitrary stage of the roll forming, and the steel sheet is bent such that the core and the steel sheet are integrated, to obtain a composite cross-section member.
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公开(公告)号：US20210379643A1
公开(公告)日：2021-12-09
申请号：US17289149
申请日：2019-10-10
发明人： Taiki YAMAKAWA , Toru HASHIMURA , Yasuhiro MAEDA
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：US20210016832A1
公开(公告)日：2021-01-21
申请号：US16642062
申请日：2018-07-24
发明人： Toru HASHIMURA , Taiki YAMAKAWA
摘要： In a bumper system, one end portion of a first tube is inserted into first beam holes, and the other end portion of the first tube is inserted into a first plate hole, one end portion of a second tube is inserted into second beam holes, and the other end portion of the second tube is inserted into a second plate hole. The bumper stay is joined to a bumper beam and a vehicle body plate by press-fitting in a state in which the first tube is expanded at the holes and the second tube is expanded at the holes. A first connection rib is in contact with the bumper beam, and a second connection rib is in contact with the vehicle body plate in the same direction as a direction in which the first connection rib is in contact with the bumper beam.
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公开(公告)号：US20200238365A1
公开(公告)日：2020-07-30
申请号：US16488560
申请日：2018-03-14
IPC分类号： B21D39/06
摘要： The member joining device includes: a tubular unit including a tubular assembly that is fixed, a flange portion whose position in a first central axis direction is fixed with respect to the tubular assembly; a shaft unit that includes a shaft assembly inserted into the tubular assembly in a linearly movable manner, and a protrusion portion whose position in a second central axis direction is fixed with respect to the shaft assembly, wherein the protrusion portion is positioned radially outside the first central axis of the tubular assembly, the protrusion portion faces the flange portion in the central axis direction; a rubber member arranged radially outside the tubular assembly, between the protrusion portion and the flange portion in the central axis direction; and a motion mechanism that moves the shaft unit in the central axis direction with respect to the tubular unit.
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公开(公告)号：US20200139910A1
公开(公告)日：2020-05-07
申请号：US16097741
申请日：2017-04-20
摘要： A structural member includes an inner member and an outer member formed of a material different from that of the inner member, the outer member being positioned outside the inner member so as to surround the inner member and including a first adjacent surface adjacent to an outer surface of the inner member, wherein an insulator is disposed between the first adjacent surface and a second adjacent surface of the inner member, the second adjacent surface being adjacent to the first adjacent surface.
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公开(公告)号：US20230126951A1
公开(公告)日：2023-04-27
申请号：US17906253
申请日：2021-03-05
发明人： Yasuhiro MAEDA , Toru HASHIMURA , Taiki YAMAKAWA
摘要： A joining method of a structure includes preparing a first member including a first portion provided with a first hole and a second portion provided with a second hole, a second member, a die, and an elastic member, inserting the second member into the first hole, inserting the elastic member into the second member, in a state where one end of the second member in an axial direction is located between the first portion and the second portion, compressing and expanding the elastic member in the axial direction, thereby expanding and deforming the second member at a portion passing through the first hole to be swaged and joined to the first portion. The die includes a support surface for applying a compressive force from the die to the elastic member through the second hole. The support surface is perpendicular to an axial direction of the elastic member.
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公开(公告)号：US20220347734A1
公开(公告)日：2022-11-03
申请号：US17754004
申请日：2020-10-14
发明人： Taiki YAMAKAWA , Toru HASHIMURA , Yasuhiro MAEDA
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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10.发明申请公开(公告)号：US20180306221A1
公开(公告)日：2018-10-25
申请号：US15766276
申请日：2016-10-13
CPC分类号： F16B5/0096 , B21D39/03 , B21D39/06 , B21D39/20 , B21D47/02 , B21D53/88 , B62D21/02 , B62D27/023
摘要： A side member (example of second member) having a hollow shape is inserted into holes formed in a cross member (example of first member) (member insertion step). The cross member and the side member are joined by caulking by expanding an insertion portion of the side member from the inside of the insertion portion (caulked junction step). The insertion portion of the side member is a portion inserted into the cross member.
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