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公开(公告)号：US12109608B2
公开(公告)日：2024-10-08
申请号：US17637759
申请日：2020-06-05
申请人： HITACHI ASTEMO, LTD.
发明人： Takateru Seki , Norihiro Kimura , Takeo Okabe
CPC分类号： B21H3/04 , B23K20/12 , B62D3/12 , B62D5/0448
摘要： A method of manufacturing a rack bar includes: a rolling die abutment step of bringing a pair of rolling dies into abutment against an intermediate portion of a workpiece; and a ball screw groove forming step of forming a ball screw groove in the workpiece by moving the workpiece relative to the pair of rolling dies so that a region of the workpiece against which the pair of rolling dies is brought into abutment is moved from the intermediate portion toward a first end portion of the workpiece.
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2.发明授权公开(公告)号：US11975755B2
公开(公告)日：2024-05-07
申请号：US18031559
申请日：2021-10-11
申请人： NSK LTD.
发明人： Takeshi Saito
摘要： Provided is a screw shaft in which shape accuracy of a male threaded portion is sufficiently secured. A screw shaft includes a large-diameter shaft portion, medium-diameter shaft portions and small-diameter shaft portions. The large-diameter shaft portion has a male threaded portion along its entire axial length on its outer peripheral surface. The medium-diameter shaft portions are arranged axially adjacent to the large-diameter shaft portion and have an outer diameter smaller than an outer diameter of the large-diameter shaft portion. The small-diameter shaft portions are axially arranged adjacent to the medium-diameter shaft portions on sides opposite to the large-diameter shaft portion, have an outer diameter smaller than the outer diameter of each of the medium-diameter shaft portions, and do not have rolling traces having a helical shape on their outer peripheral surfaces.
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公开(公告)号：US11897021B2
公开(公告)日：2024-02-13
申请号：US16674986
申请日：2019-11-05
申请人： BALL CORPORATION
CPC分类号： B21D51/2661 , B21D51/263 , B21D51/38 , B21H3/02 , B21H3/046 , B65D1/0246 , B65D41/349 , B65D41/405 , B21D51/50 , B65D2251/20 , B65D2401/05
摘要： The present invention relates generally to a container that may be sealed and reclosed with a threaded closure. More specifically, the present invention relates to methods of manufacturing a metallic container having an opening with inwardly facing threads. The threads are formed on the metallic container by pressing a neck portion of the metallic container against closure threads of a threaded closure which is inserted at least partially into the opening. The container threads may optionally be formed while the threaded closure is in tension. In this manner, after the container threads are formed, the closure threads can apply a force to the container threads such that the threaded closure is in tension. The container opening may be selectively sealed and reclosed with the threaded closure which releasably engages the container threads. Novel apparatus and methods of sealing metallic containers and forming threads on the metallic containers are also disclosed.
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4.发明公开公开(公告)号：US20230406394A1
公开(公告)日：2023-12-21
申请号：US18031559
申请日：2021-10-11
申请人： NSK Ltd.
发明人： Takeshi SAITO
摘要： Provided is a screw shaft in which shape accuracy of a male threaded portion is sufficiently secured. A screw shaft includes a large-diameter shaft portion, medium-diameter shaft portions and small-diameter shaft portions. The large-diameter shaft portion has a male threaded portion along its entire axial length on its outer peripheral surface. The medium-diameter shaft portions are arranged axially adjacent to the large-diameter shaft portion and have an outer diameter smaller than an outer diameter of the large-diameter shaft portion. The small-diameter shaft portions are axially arranged adjacent to the medium-diameter shaft portions on sides opposite to the large-diameter shaft portion, have an outer diameter smaller than the outer diameter of each of the medium-diameter shaft portions, and do not have rolling traces having a helical shape on their outer peripheral surfaces.
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公开(公告)号：US11365099B2
公开(公告)日：2022-06-21
申请号：US16886296
申请日：2020-05-28
发明人： Norbert Hausladen , Hubertus Rütten
摘要： The present invention relates to rope drums for winding and unwinding ropes, having a drum shell, to which end disks are fastened at the end faces, and to rope winches having such rope drums. The invention also relates to a method for producing such a rope drum. According to the invention, the drum shell is seamlessly rolled from an annular workpiece blank by means of a rope groove profile embossed in a non-cutting manner.
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公开(公告)号：US20210220901A1
公开(公告)日：2021-07-22
申请号：US16967208
申请日：2019-01-28
IPC分类号： B21H3/04
摘要： A method for manufacturing a steering shaft of a steering device includes: a reduced-diameter section forming process in which a second-phase member is formed from a first-phase member by forming a reduced-diameter section in the first-phase member; and a ball screw groove forming process in which a third-phase member is formed from the second-phase member by forming a ball screw groove in the second-phase member by rolling.
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公开(公告)号：US10828691B2
公开(公告)日：2020-11-10
申请号：US15882506
申请日：2018-01-29
摘要： A reciprocating die roll forming machine for forming a pattern such as a thread form on the outer surface of a cylindrical blank includes at least one set of reciprocating dies operating upon the blank which rotates in place. The machine includes a slide and bearing combination to support the dies belt driven by a servo-motor controlled by a central processing unit. Mechanism is provided to deliver and position a blank for engagement by the dies. In one form, the machine includes multiple die sets to produce multiple parts during one die reciprocation cycle. In another form, the machine employs separate drive mechanisms to independently drive each die of a set.
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公开(公告)号：US20200156139A1
公开(公告)日：2020-05-21
申请号：US16674986
申请日：2019-11-05
申请人： BALL CORPORATION
摘要： The present invention relates generally to a container that may be sealed and reclosed with a threaded closure. More specifically, the present invention relates to methods of manufacturing a metallic container having an opening with inwardly facing threads. The threads are formed on the metallic container by pressing a neck portion of the metallic container against closure threads of a threaded closure which is inserted at least partially into the opening. The container threads may optionally be formed while the threaded closure is in tension. In this manner, after the container threads are formed, the closure threads can apply a force to the container threads such that the threaded closure is in tension. The container opening may be selectively sealed and reclosed with the threaded closure which releasably engages the container threads. Novel apparatus and methods of sealing metallic containers and forming threads on the metallic containers are also disclosed.
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公开(公告)号：US20190060979A1
公开(公告)日：2019-02-28
申请号：US16173923
申请日：2018-10-29
发明人： Rakesh Singh , Ke Ken Li , Michael Hui Du , Fei Song , Stephen Ray Stafford , Anthony Louis Williams Collins , Keith Moriarty , Doyle Brinegar
摘要： A device for cold rolling a thread on a tubular support member of a rotary shouldered thread connection includes obtaining an original root depth of a thread root, cold rolling the thread until a minimum increased root depth tolerance is achieved.
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10.发明授权公开(公告)号：US09844805B2
公开(公告)日：2017-12-19
申请号：US15279127
申请日：2016-09-28
申请人： Ball Corporation
IPC分类号： B21C23/00 , B23P15/00 , B21C23/18 , B65D1/02 , B65D41/04 , C22C1/00 , B21D51/26 , C22C21/00 , B21H3/04
CPC分类号： B21C23/002 , B21C23/186 , B21D51/2615 , B21H3/04 , B23P15/00 , B65D1/0207 , B65D1/0246 , B65D41/045 , B65D41/0464 , C22C1/00 , C22C21/00 , Y10T29/49988 , Y10T29/49989
摘要： The present invention relates generally to forming a threaded neck in a metal bottle manufactured by a process known as impact extrusion. More specifically, the present invention relates to methods, apparatus and alloy compositions used in the impact extrusion manufacturing of containers and other articles with sufficient strength characteristics to allow threading the container necks to receive a threaded closure on the threaded neck.
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