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公开(公告)号：US10668641B2
公开(公告)日：2020-06-02
申请号：US14896979
申请日：2014-04-25
发明人： Takumi Ohshima , Kiyoshi Hasegawa , Kimio Nishimura , Takashi Sekikawa , Yasushi Matsushita , Akihisa Hori , Michito Kishi
摘要： The magnet cutting device includes a pair of supporting portions spaced apart by a predetermined distance and configured to support the magnet from a bottom side, a blade configured to press the magnet supported by the pair of supporting portions from an upper side of the magnet, and a magnet supporting tool arranged between the pair of supporting portions to support the magnet from the bottom side of the magnet. A surface of the magnet supporting tool to be held in contact with the magnet is shaped such that a central part of an upper end is higher than the upper ends of the pair of supporting portions and an end part of the upper end is lower than the upper ends of the pair of supporting portions when the magnet is placed on the surface, the upper end having a slope connecting the central part and the end part.
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公开(公告)号：US10279504B2
公开(公告)日：2019-05-07
申请号：US15027470
申请日：2014-07-29
发明人： Takumi Ohshima , Kiyoshi Hasegawa , Kimio Nishimura , Takashi Sekikawa , Yasushi Matsushita , Akihisa Hori , Michito Kishi
摘要： A manufacture method that includes positioning the permanent magnet body of which a surface is coated with a coating film for deterioration prevention, a scheduled cleavage portion of the permanent magnet body being located between two fulcrums, which are edge portions of a die, supporting the permanent magnet body, and cleaving the permanent magnet body into a cleaved magnet body and the magnet piece by pressing the scheduled cleavage portion of the permanent magnet body is provided. The manufacture method also includes cutting the coating-film between the cleaved magnet body and the magnet piece by pressing an end portion of the cleaved magnet piece from a pressing side of the scheduled cleavage portion, the end portion being on a side opposite to a cleavage surface side.
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3.发明授权公开(公告)号：US09819250B2
公开(公告)日：2017-11-14
申请号：US14783257
申请日：2014-03-18
发明人： Kiyoshi Hasegawa , Takumi Ohshima , Yasushi Matsushita , Akihisa Hori , Michito Kishi , Takashi Sekikawa
摘要： A magnet inserting apparatus into magnet insertion slots of a rotor core is configured to arrange a guide tape (a belt-shaped member) along an inner wall surface of the magnet insertion slot, and the guide tape having a coefficient of friction smaller than that of the inner wall surface of the magnet insertion slot. The magnet inserting apparatus is configured to insert the magnet parts into the magnet insertion slot, the guide tape (the belt-shaped member) being arranged on the inner wall surface of the magnet insertion slot.
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公开(公告)号：US09712025B2
公开(公告)日：2017-07-18
申请号：US14783877
申请日：2014-03-18
发明人： Kiyoshi Hasegawa , Takumi Ohshima , Yasushi Matsushita , Akihisa Hori , Michito Kishi , Takashi Sekikawa
摘要： A magnet inserting apparatus inserts a plurality of magnet parts into each of the magnet insertion slots provided in the rotor core of a motor. The magnet inserting apparatus comprises a guiding unit equipped with a magnet inlet and a magnet outlet and is configured to align the plurality of magnet parts inserted through the magnet inlet until the inserted magnet parts are ejected from the magnet outlet, and to guide the aligned magnet parts so as to be inserted from the magnet outlet to the magnet insertion slot. A size of the magnet inlet of the guiding unit is larger than a size of the magnet insertion slot, a size of the magnet outlet is the same as or smaller than the size of the magnet insertion slot, and the guiding unit is formed so that a shape from the magnet inlet to the outlet becomes a taper shape.
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公开(公告)号：US09625539B2
公开(公告)日：2017-04-18
申请号：US14764085
申请日：2014-02-10
发明人： Koji Higaki , Kimio Nishimura , Masahiro Omata , Hideki Watanabe , Yasuhisa Koike , Takashi Sekikawa , Yasushi Matsushita , Akihisa Hori , Takumi Ohshima , Michito Kishi , Kiyoshi Hasegawa , Hiroaki Shibukawa , Kazuhiro Takaichi , Hideo Sakuyama , Yuhei Yamane , Yoshito Ozawa
CPC分类号： G01R33/12 , G01N27/9026 , G01R33/10 , H01F41/0253
摘要： A magnet evaluating device evaluates an evaluation magnet by passing the evaluation magnet, which is formed by connecting a plurality of magnetic sections with insulating material in between, and a master magnet of the same form through an alternating magnetic field generated by an excitation coil, measuring the eddy current occurring in the magnetic section as voltage or current occurring in a detection coil and comparing the measured value for the evaluation magnet and the measured value for the master magnet.
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公开(公告)号：US09754719B2
公开(公告)日：2017-09-05
申请号：US14911682
申请日：2014-08-21
发明人： Takumi Ohshima , Kiyoshi Hasegawa , Kimio Nishimura , Takashi Sekikawa , Yasushi Matsushita , Akihisa Hori , Michito Kishi
IPC分类号： B26F3/00 , H02K15/03 , H01F41/02 , H02K1/27 , B23K26/359 , B23K26/00 , B23K103/00
CPC分类号： H01F41/0253 , B23K26/0006 , B23K26/359 , B23K2103/50 , B26F3/002 , H02K1/276 , H02K15/03
摘要： A cutting method and a cutting device of cutting a magnet body including a coating film feed, in a state where the magnet body in which cutout grooves serving as brittle sections are provided on a lower surface along cutting planned positions is supported by dies serving as two support points from the lower side, the magnet body to a position where the brittle section is arranged between both the support points, and press the magnet body from the upper side of a position offset rearward in the feeding direction from the brittle section between both the support points, so as to cut the magnet body into a cut magnet body and a magnet piece smaller than the cut magnet body while cutting the coating film.
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公开(公告)号：US10583579B2
公开(公告)日：2020-03-10
申请号：US14347040
申请日：2012-09-20
发明人： Kazuhiro Takaichi , Kimio Nishimura , Hiroharu Takeuchi , Kunitomo Ishiguro , Kiyoshi Hasegawa , Yasuhisa Koike
摘要： A field-pole magnet manufacturing apparatus fractures a magnet fixed on a die serving as a lower tool by causing a punch of an upper tool to press the magnet while in contact with the magnet. At least one projection is formed in the punch of the upper tool symmetrically with respect to the central position of the magnet in the width direction of the magnet.
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公开(公告)号：US20150270060A1
公开(公告)日：2015-09-24
申请号：US14429918
申请日：2013-09-19
发明人： Hiroaki Shibukawa , Kimio Nishimura , Masahiro Omata , Takashi Sekikawa , Yasushi Matsushita , Kiyoshi Hasegawa , Akihisa Hori , Takumi Ohshima , Michito Kishi , Hideki Watanabe
CPC分类号： H01F41/0253 , B26F3/00 , H02K15/03 , Y10T225/22
摘要： A manufacturing device for cleft magnets comprises a cleaving mechanism for cleaving a magnet plate by applying a pressing force to the magnet plate corresponding to a back of a groove formed on one surface of the magnet plate and a carry-in mechanism for carrying the magnet plate to a cleaving position by the cleaving mechanism. By comprising a foreign matter removal mechanism for removing a foreign matter adhering to the magnet plate before the magnet plate is carried to the cleaving position by the carry-in mechanism, the foreign matter adhering to the magnet plate is removed before cleaving.
摘要翻译： 用于裂缝磁体的制造装置包括：用于通过向对应于形成在磁体板的一个表面上的凹槽的背面的磁体板施加按压力来将磁板切割的分离机构，以及用于承载磁体板的携带机构 通过切割机构到达分离位置。 通过在通过搬入机构将磁板搬运到分离位置之前，通过包括除去附着在磁板上的异物的异物除去机构，在切断前去除附着在磁板上的异物。
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公开(公告)号：US09929628B2
公开(公告)日：2018-03-27
申请号：US14787985
申请日：2014-03-27
发明人： Takumi Ohshima , Kiyoshi Hasegawa , Takashi Sekikawa , Yasushi Matsushita , Akihisa Hori , Michito Kishi , Hiroaki Shibukawa
IPC分类号： H02K15/03
CPC分类号： H02K15/03
摘要： A magnet insertion method into a rotor core is to insert an assembly into a magnet insertion hole provided in the rotor core of an electric motor, the assembly being formed by laminating a plurality of members, including at least a plurality of magnet pieces, in a line. According to this magnet insertion method, the assembly is formed by arranging a front member, having a surface surrounded by a chamfered ridge line, to cause the surface to be a front side end surface upon insertion, by laminating, on its rear side in an insertion direction, other members, without having the chamfered ridge line, in a line along the insertion direction to cause the other members to be hidden inside a projection of the front member when being projected from an insertion hole side, and by temporarily holding the front member and the other members.
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公开(公告)号：US09779871B2
公开(公告)日：2017-10-03
申请号：US14429918
申请日：2013-09-19
发明人： Hiroaki Shibukawa , Kimio Nishimura , Masahiro Omata , Takashi Sekikawa , Yasushi Matsushita , Kiyoshi Hasegawa , Akihisa Hori , Takumi Ohshima , Michito Kishi , Hideki Watanabe
CPC分类号： H01F41/0253 , B26F3/00 , H02K15/03 , Y10T225/22
摘要： A manufacturing device for cleft magnets comprises a cleaving mechanism for cleaving a magnet plate by applying a pressing force to the magnet plate corresponding to a back of a groove formed on one surface of the magnet plate and a carry-in mechanism for carrying the magnet plate to a cleaving position by the cleaving mechanism. By comprising a foreign matter removal mechanism for removing a foreign matter adhering to the magnet plate before the magnet plate is carried to the cleaving position by the carry-in mechanism, the foreign matter adhering to the magnet plate is removed before cleaving.
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