Patents Assigned to MEG Inc.
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Publication number: 20180172064Abstract: A method for manufacturing a crankshaft including a pin portion and a journal portion includes: a preparation process of preparing a die that is formed such that a parting plane of the pin portion and a parting plane of the journal portion are spaced apart from each other in a stamping direction; and a stamping process of forming a shaft portion including the pin portion and the journal portion by stamping a blank with the die.Type: ApplicationFiled: November 21, 2017Publication date: June 21, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEG Inc.Inventors: Koichi ONO, Yoshihiko UKAI, Keiichi MATSUNAGA
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Patent number: 8151431Abstract: Technology which enables a first member and a second member to be fastened together strongly is provided. A bar-shaped section is formed on the first member, a hole is formed in the second member, and the bar-shaped section of the first member is pressure fitted into the hole of the second member. Here, the diameter of the circumscribed circle which circumscribes the cross-section perpendicular to the axis of the bar-shaped section is made greater than the diameter of the inscribed circle which inscribes the cross-section perpendicular to the axle of the hole. The diameter of the inscribed circle which inscribes the cross-section perpendicular to the axis of the bar-shaped section is made smaller than the diameter of the circumscribed circle which circumscribes the cross-section perpendicular to the axle of the hole.Type: GrantFiled: July 31, 2006Date of Patent: April 10, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, MEG Inc.Inventors: Yu Hashimoto, Yoshihiko Ukai, Keiichi Matsunaga
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Patent number: 8142098Abstract: Technology which enables a first member and a second member to be firmly fastened together is provided. A bar-shaped section is formed on the first member, a hole is formed in the second member, and the bar-shaped section of the first member is pressure fitted into the hole of the second member. Here, peak sections which extend intermittently in the axial direction or peak sections which extend obliquely with respect to the axial direction are formed in a repeating fashion in the circumferential direction, on the side face of the harder of the bar-shaped member and the hole.Type: GrantFiled: July 31, 2006Date of Patent: March 27, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, MEG Inc.Inventors: Yu Hashimoto, Yoshihiko Ukai, Keiichi Matsunaga
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Publication number: 20090324324Abstract: Technology which enables a first member and a second member to be fastened together strongly is provided. A bar-shaped section is formed on the first member, a hole is formed in the second member, and the bar-shaped section of the first member is pressure fitted into the hole of the second member. Here, the diameter of the circumscribed circle which circumscribes the cross-section perpendicular to the axis of the bar-shaped section is made greater than the diameter of the inscribed circle which inscribes the cross-section perpendicular to the axle of the hole. The diameter of the inscribed circle which inscribes the cross-section perpendicular to the axis of the bar-shaped section is made smaller than the diameter of the circumscribed circle which circumscribes the cross-section perpendicular to the axle of the hole.Type: ApplicationFiled: July 31, 2006Publication date: December 31, 2009Applicants: Toyota Jidosha Kabushiki Kaisha, Meg Inc.Inventors: Yu Hashimoto, Yoshihiko Ukai, Keiichi Matsunaga
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Publication number: 20090317181Abstract: Technology which enables a first member and a second member to be firmly fastened together is provided. A bar-shaped section is formed on the first member, a hole is formed in the second member, and the bar-shaped section of the first member is pressure fitted into the hole of the second member. Here, peak sections which extend intermittently in the axial direction or peak sections which extend obliquely with respect to the axial direction are formed in a repeating fashion in the circumferential direction, on the side face of the harder of the bar-shaped member and the hole.Type: ApplicationFiled: July 31, 2006Publication date: December 24, 2009Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEG INC.Inventors: Yu Hashimoto, Yoshihiko Ukai, Keiichi Matsunaga
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Patent number: 7100416Abstract: A carrier C is integrally formed of a pair of flanges opposed to each other and designed to rotatably support rotating bodies therebetween and a plurality of joints for connecting the flanges. A groove is formed on the border between the flanges and the joints, and openings are made among the joints. Engagement holes for rotatably supporting rotational shafts of rotating bodies are made in the flanges.Type: GrantFiled: October 22, 2003Date of Patent: September 5, 2006Assignees: Toyota Jidosha Kabushiki Kaisha, MEG Inc.Inventors: Takashi Suzumura, Keiichi Matsunaga
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Publication number: 20040082432Abstract: A carrier C is integrally formed of a pair of flanges opposed to each other and designed to rotatably support rotating bodies therebetween and a plurality of joints for connecting the flanges. A groove is formed on the border between the flanges and the joints, and openings are made among the joints. Engagement holes for rotatably supporting rotational shafts of rotating bodies are made in the flanges.Type: ApplicationFiled: October 22, 2003Publication date: April 29, 2004Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MEG INC.Inventors: Takashi Suzumura, Keiichi Matsunaga