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公开(公告)号：US20220339689A1
公开(公告)日：2022-10-27
申请号：US17762243
申请日：2020-09-14
Inventor： Yasuhiro MAEDA , Toru HASHIMURA , Taiki YAMAKAWA
IPC: B21D39/20
Abstract: 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：US20210356058A1
公开(公告)日：2021-11-18
申请号：US17286924
申请日：2019-12-04
Inventor： Yasuhiro MAEDA , Toru HASHIMURA , Taiki YAMAKAWA
IPC: F16L13/14 , F16L13/007
Abstract: 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：US20210009058A1
公开(公告)日：2021-01-14
申请号：US16495299
申请日：2018-03-13
Inventor： Toru HASHIMURA , Ryohei YUKISHIGE , Yasuhiro MAEDA
Abstract: A vehicular structure includes: a first member formed in a tubular shape and having protrusions on an outer periphery thereof; and a second member formed in a tubular shape and having a locking wall with a hole in which the first member is inserted. The first member is joined to the second member such that a portion of the first member that is inserted in the hole of the second member is expanded, and the protrusions are in contact with the locking wall of the second member.
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公开(公告)号：US20200377046A1
公开(公告)日：2020-12-03
申请号：US16954923
申请日：2018-12-14
Inventor： Toru HASHIMURA , Taiki YAMAKAWA , Yasuhiro MAEDA , Kenichi WATANABE , Junya NAITO , Akihiko TATSUMI
Abstract: 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：US20200246860A1
公开(公告)日：2020-08-06
申请号：US16488562
申请日：2018-03-14
Inventor： Yasuhiro MAEDA , Toru HASHIMURA , Kenichi WATANABE , Takayuki KIMURA
Abstract: A method for joining members according to the present invention includes: providing a first member, a second member, a guide shaft member, a rubber member, a first plunger, a second plunger, and a drive mechanism; inserting the second member into a hole portion of the first member; inserting the guide shaft member into a through-hole of the rubber member; inserting the rubber member, into which the guide shaft member is inserted, inside the second member; arranging an assembly in which the first member, the second member, the rubber member, and the guide shaft member so as to horizontally extend; arranging the assembly so as to be sandwiched by the first plunger and the second plunger; and moving the second plunger toward the first plunger; compressing the rubber member by the first plunger and the second plunger in a direction where the guide shaft member extends, and expanding the rubber member radially outside the guide shaft member; and thus expanding and deforming at least a portion of the second member that is inserted into the hole portion to join the portion to the first member by press-fitting.
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Patent Agency Ranking
公开(公告)号：US20190060975A1
公开(公告)日：2019-02-28
申请号：US16080515
申请日：2017-02-21
Inventor： Toru HASHIMURA , Kenichi WATANABE , Junya NAITOU , Yasuhiro MAEDA
CPC classification number: B21D39/206 , B21D39/06 , B21D41/028 , F16B4/004 , F16B17/006
Abstract: The joining method for members according to the present invention includes: providing an aluminum component including an insertion hole provided with a rib in at least part of an edge part, and a hollow steel pipe; inserting the steel pipe into the insertion hole of the aluminum component; and expanding and deforming the steel pipe to join the steel pipe to the aluminum component by press-fitting.
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公开(公告)号：US20180272478A1
公开(公告)日：2018-09-27
申请号：US15763418
申请日：2016-08-22
Inventor： Yasuhiro MAEDA , Jiro IWAYA , Toru HASHIMURA , Junya NAITOU , Hideto KATSUMA
CPC classification number: B23P11/005 , B21D37/08 , B21D39/04 , B21D39/06 , B21D39/206
Abstract: A method for joining members of the present invention is as follows: a second member is inserted through a hole part of a first member; a guide shaft is inserted through a through hole of rubber; the rubber with the guide shaft inserted is inserted into the second member; and a drive mechanism relatively moves pushers and toward each other to compress the rubber in the extending direction of the guide shaft so that the rubber is expanded outward from inside to expand and deform at least a portion of the second member inserted into the hole part, thereby joining the second member to the first member.
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公开(公告)号：US20180272414A1
公开(公告)日：2018-09-27
申请号：US15763403
申请日：2016-08-22
Inventor： Yasuhiro MAEDA , Toru HASHIMURA , Junya NAITOU , Hideto KATSUMA
Abstract: In a method for joining bumper members, a bumper reinforcement including a rear inclined wall provided with a hole, and a bumper stay in a hollow shape are prepared. The method for joining bumper members includes the steps of: inserting the bumper stay through the hole of the bumper reinforcement to pass through the rear inclined wall; inserting rubber into the bumper stay; and compressing the rubber in a direction of an axis L of the bumper stay to expand the rubber outward from inside to expand and deform at least a portion of the bumper stay inserted into the hole, thereby joining the bumper stay to the rear inclined wall by press-fitting.
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公开(公告)号：US20240269727A1
公开(公告)日：2024-08-15
申请号：US18568557
申请日：2022-04-20
Inventor： Koichiro SHINNO , Yasuhiro MAEDA
CPC classification number: B21D39/206 , B21D37/01 , B21D39/06
Abstract: A first member provided with a hole, a second member having a tubular shape, and a composite elastic body obtained by combining at least two types of elastic bodies having different hardness are prepared, the second member is inserted into the hole of the first member, the composite elastic body is inserted into the second member, and the composite elastic body is pressed to cause the second member to bulge out, thereby joining the first member and the second member by press-fitting.
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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
Inventor： Toru HASHIMURA , Artur REKETS , Yasuhiro MAEDA , Taiki YAMAKAWA
CPC classification number: B21D39/06 , B60R19/04 , B21D53/88 , B21D39/203
Abstract: 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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