Patents Assigned to Nissei Co., Ltd.
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Patent number: 9610629Abstract: Provided is a rolling machine including a plurality of cylindrical round dies disposed centering on a cylindrical raw material to roll the raw material from the outer circumference of the raw material. In order to adjust the turning angle in the inclined shaft (the A shaft) turned around the push-in direction (the X axis) of the round die (3), an inclined-shaft control motor is started to turn a round die table (21) on the A shaft. A B-shaft control motor (71) is driven in order to adjust the turning angle on the taper shaft (the B shaft) turned around the Y axis orthogonal to the push-in direction and orthogonal to the axis of the raw material. According to the adjustment of the A shaft and the B shaft, it is possible to correct a tooth trace and a tooth shape of a gear.Type: GrantFiled: July 23, 2014Date of Patent: April 4, 2017Assignee: NISSEI CO., LTD.Inventors: Toshinaka Shinbutsu, Shuichi Amano, Shinya Hasegawa, Hiroshi Sasaki, Shoichi Usunami
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Publication number: 20160175916Abstract: Provided is a rolling machine including a plurality of cylindrical round dies disposed centering on a cylindrical raw material to roll the raw material from the outer circumference of the raw material. In order to adjust the turning angle in the inclined shaft (the A shaft) turned around the push-in direction (the X axis) of the round die (3), an inclined-shaft control motor is started to turn a round die table (21) on the A shaft. A B-shaft control motor (71) is driven in order to adjust the turning angle on the taper shaft (the B shaft) turned around the Y axis orthogonal to the push-in direction and orthogonal to the axis of the raw material. According to the adjustment of the A shaft and the B shaft, it is possible to correct a tooth trace and a tooth shape of a gear.Type: ApplicationFiled: July 23, 2014Publication date: June 23, 2016Applicant: NISSEI CO., LTD.Inventors: Toshinaka SHINBUTSU, Shuichi AMANO, Shinya HASEGAWA, Hiroshi SASAKI, Shoichi USUNAMI
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Patent number: 9200231Abstract: Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2); (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.Type: GrantFiled: June 12, 2014Date of Patent: December 1, 2015Assignees: IDEMITSU KOSAN CO., LTD., Nissei Co., Ltd.Inventors: Akihiro Shishikura, Toshinaka Shinbutsu, Shuichi Amano
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Patent number: 9022137Abstract: A fastening tool is provided that incorporates, in an outer annular body into which a first nut is inserted to be driven to rotate, an inner annular body into which a first nut and a second nut having a pitch different from the pitch of the first nut are inserted to be driven to rotate, and that simultaneously rotates the two nuts and fastens the nuts to a bolt. A flange shaft body is driven to rotate relatively to the outer annular body and the inner annular body via a plurality of balls. The balls are held by the flange shaft body and pressed towards notches of the outer annular body and the inner annular body with urging forces of first and second urging members via holding members respectively.Type: GrantFiled: April 6, 2011Date of Patent: May 5, 2015Assignee: Nissei Co., Ltd.Inventors: Yasuyuki Suzuki, Toshinaka Shinbutsu, Shuichi Amano
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Publication number: 20140296116Abstract: Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2) ; (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.Type: ApplicationFiled: June 12, 2014Publication date: October 2, 2014Applicants: IDEMITSU KOSAN CO., LTD., NISSEI CO., LTD.Inventors: Akihiro SHISHIKURA, Toshinaka SHINBUTSU, Shuichi AMANO
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Patent number: 8835365Abstract: Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2); (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.Type: GrantFiled: March 25, 2009Date of Patent: September 16, 2014Assignees: Idemitsu Kosan Co., Ltd., Nissei Co., Ltd.Inventors: Akihiro Shishikura, Toshinaka Shinbutsu, Shuichi Amano
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Publication number: 20140144197Abstract: The present invention provides a lubricating oil for rolling, which contains a mineral oil and/or a synthetic oil as the main component and has a friction coefficient of 0.2 or more, and a rolling method using the lubricating oil for rolling.Type: ApplicationFiled: July 25, 2012Publication date: May 29, 2014Applicants: Nissei Co., Ltd., IDEMITSU KOSAN CO., LTD.Inventors: Nobuhide Tanino, Akihiro Shishikura, Toshinaka Shinbutsu, Shuichi Amano, Shoichi Usunami, Shigeru Nagaki, Ryuichi Goto
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Publication number: 20130025898Abstract: A fastening tool is provided that incorporates, in an outer annular body into which a first nut is inserted to03 be driven to rotate, an inner annular body into which a first nut and a second nut having a pitch different from the pitch of the first nut are inserted to be driven to rotate, and that simultaneously rotates the two nuts and fastens the nuts to a bolt. A flange shaft body is driven to rotate relatively to the outer annular body and the inner annular body via a plurality of balls. The balls are held by the flange shaft body and pressed towards notches of the outer annular body and the inner annular body with urging forces of first and second urging members via holding members respectively.Type: ApplicationFiled: April 6, 2011Publication date: January 31, 2013Applicant: NISSEI CO., LTD.Inventors: Yasuyuki Suzuki, Toshinaka Shinbutsu, Shuichi Amano
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Publication number: 20110118158Abstract: Provided is a lubricating oil composition for round die rolling, which is obtained by blending a base oil with: (A) 0.5 to 40 mass % of a monoester having 13 to 48 carbon atoms (a-1) and/or 0.5 to 30 mass % of a fatty dicarboxylate having 13 to 34 carbon atoms (a-2); (B) 0.01 to 10 mass % of a thiadiazole compound; (C) 0.01 to 15 mass % of a thiophosphite; and (D) 0.01 to 5 mass % of a triazole compound. The lubricating oil composition for round die rolling shows excellent processing performance without using any chlorine-based compound, and is able to improve lubricity in a bearing to lengthen the life of the bearing.Type: ApplicationFiled: March 25, 2009Publication date: May 19, 2011Applicants: IDEMITSU KOSAN CO., LTD., Nissei Co., Ltd.Inventors: Akihiro Shishikura, Toshinaka Shinbutsu, Shuichi Amano
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Patent number: 6915673Abstract: A worm is formed by rolling to reduce the number of processing steps while ensuring the worm accuracy satisfactorily. A work material is positioned between a first rolling die (100) and a second rolling die (101) by rotation of the rolling dies and a servomotor (76) for feeding the work material. When the lead angle of a worm is large and there is a large difference between the finished diameter and the blank diameter, the lead angle changes during the progress of rolling process, resulting in occurrence of through-feed. A slide plate (55) is freely slidable on a slide (53). Therefore, when through-feed occurs owing to the lead angles of the first and second rolling dies (100) and (101) and the workpiece, the slide plate (55) slides freely, and this is detected with a detecting sensor. The rotation of the first and second rolling dies (100) and (101) is stopped.Type: GrantFiled: June 20, 2002Date of Patent: July 12, 2005Assignee: Nissei Co., Ltd.Inventors: Toshinaka Shinbutsu, Minoru Yoshizawa, Shuichi Amano, Kenji Ito
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Patent number: 6418767Abstract: A round die type form rolling apparatus comprises: a pair of die moving blocks 15a, 15b rotatably supporting a pair of round dies 12a, 12b; four beam shafts 19 disposed around the rolling position of a work 33 being rolled by the round dies 12a, 12b and extending between the pair of die moving blocks 15a, 15b; and a push mechanism 20 for moving the pair of die moving blocks 15a, 15b toward each other. The die moving blocks 15a, 15b are moved, guided by the beam shafts 19, toward each other and the reaction forces generated between a pair of the round dies 12a, 12b by the rolling pressure are shared by the beam shafts 19 to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work.Type: GrantFiled: July 2, 2001Date of Patent: July 16, 2002Assignee: Nissei Co., Ltd.Inventors: Toshinaka Shinbutsu, Minoru Yoshizawa, Shuichi Amano, Katsuyuki Nakata, Hiroshi Yoshikawa, Hiroshi Okino
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Publication number: 20010039820Abstract: A round die type form rolling apparatus comprises: a pair of die moving blocks 15a, 15b rotatably supporting a pair of round dies 12a, 12b; four beam shafts 19 disposed around the rolling position of a work 33 being rolled by the round dies 12a, 12b and extending between the pair of die moving blocks 15a, 15b; and a push mechanism 20 for moving the pair of die moving blocks 15a, 15b toward each other. The die moving blocks 15a, 15b are moved, guided by the beam shafts 19, toward each other and the reaction forces generated between a pair of the round dies 12a, 12b by the rolling pressure are shared by the beam shafts 19 to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work.Type: ApplicationFiled: July 2, 2001Publication date: November 15, 2001Applicant: NISSEI CO., LTD.Inventors: Toshinaka Shinbutsu, Minoru Yoshizawa, Shuichi Amano, Katsuyuki Nakata, Hiroshi Yoshikawa, Hiroshi Okino
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Patent number: 5232027Abstract: An apparatus for dispensing a chilled confection food or the like from a small extrudable package into a food serving container. The apparatus includes a horizontal table for supporting the extrudable package, a pusher, and a food container support table. The horizontal table and the pusher are so constructed that they press the extrudable package with their relative approaching movements along a vertical direction and extrude the chilled confection food from the extrudable package into the food container which is set on the food serving container support table.Type: GrantFiled: October 3, 1991Date of Patent: August 3, 1993Assignees: Nissei Co., Ltd., Nissei Maryland Cup Co., Ltd.Inventors: Toshinori Tanaka, Osamu Arai, Taizo Karasawa