Patents by Inventor Hideo Meguri
Hideo Meguri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8429946Abstract: A press-working apparatus capable of forming a clear character line. The press-working apparatus forms a product having a character line. The press-working apparatus comprises an upper die and a lower die arranged across a steel sheet, an upper die mechanism for moving the upper die toward and away from the lower die, a first holder and a second holder for clamping the steel sheet and applying an unwrinkling force to the same, and a control unit for controlling the upper die mechanism and the first holder. The upper die is divided on the character line of the product into a first upper die and a second upper die. The control unit makes the unwrinkling force by the first holder stronger than that by the second holder, so that the steel sheet is press-worked by the second upper die and then by the first upper die.Type: GrantFiled: October 15, 2007Date of Patent: April 30, 2013Assignee: Honda Motor Co., Ltd.Inventors: Shingo Maeda, Hideo Meguri, Seiji Takahashi, Yuichi Nagai
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Patent number: 8296110Abstract: A forming speed determination method for determining a forming speed of a press-processing device with a plurality of measurement points on a sheet material to conduct press-forming of the sheet material with a press-processing device at a predetermined forming speed. Strain states at respective points on the press-formed sheet material are plotted on a forming limit diagram including the forming limit curve of a sheet material to produce a strain distribution chart. Subsequently, the closest point to the forming limit curve among the points is defined as a specific measurement point. When this specific measurement point is located in the bulge region, the forming speed of a press-processing device is decreased to be slower than the above-mentioned predetermined forming speed. Meanwhile, when this specific measurement point is located in the draw region, the forming speed of a press-processing device is increased to be faster than the above-mentioned predetermined forming speed.Type: GrantFiled: October 4, 2007Date of Patent: October 23, 2012Assignee: Honda Motor Co., Ltd.Inventors: Yuichi Nagai, Hideo Meguri
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Patent number: 7963141Abstract: In a press working apparatus, while a servo motor is acting, an upper die is made to come close to a lower die and press working of the first time is conducted on a steel plate. A slider is raised to a movable punch preparation position. A movable punch is protruded from a die face of the upper die by width and locked by a mechanical lock. The upper die is made to come close to the lower die again and the steel plate is pushed with the upper die and at the same time an additional worked portion is pushed and deformed with the movable punch so as to conduct press working of the second time. After the movable punch has been retracted, the slider is raised.Type: GrantFiled: July 9, 2010Date of Patent: June 21, 2011Assignee: Honda Motor Co., Ltd.Inventors: Yuichi Nagai, Hideo Meguri, Kenzo Takeda, Takayuki Egawa
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Publication number: 20100275670Abstract: In a press working apparatus, while a servo motor is acting, an upper die is made to come close to a lower die and press working of the first time is conducted on a steel plate. A slider is raised to a movable punch preparation position. A movable punch is protruded from a die face of the upper die by width and locked by a mechanical lock. The upper die is made to come close to the lower die again and the steel plate is pushed with the upper die and at the same time an additional worked portion is pushed and deformed with the movable punch so as to conduct press working of the second time. After the movable punch has been retracted, the slider is raised.Type: ApplicationFiled: July 9, 2010Publication date: November 4, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Yuichi Nagai, Hideo Meguri, Kenzo Takeda, Takayuki Egawa
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Patent number: 7765848Abstract: In a press working apparatus 10, while a servo motor 24 is acting, an upper die 38 is made to come close to a lower die 52 and press working of the first time is conducted on a steel plate 12. A slider 32 is raised to a movable punch preparation position. A movable punch 90 is protruded from a die face 38a of the upper die 38 by width H and locked by a mechanical lock 94. The upper die 38 is made to come close to the lower die 52 again and the steel plate 12 is pushed with the upper die 38 and at the same time an additional worked portion 12a is pushed and deformed with the movable punch 90 so as to conduct press working of the second time. After the movable punch 90 has been retracted, the slider 32 is raised.Type: GrantFiled: April 10, 2007Date of Patent: August 3, 2010Assignee: Honda Motor Co., Ltd.Inventors: Yuichi Nagai, Hideo Meguri, Kenzo Takeda, Takayuki Egawa
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Publication number: 20100089119Abstract: A forming speed determination method for determining a forming speed of a press-processing device with a plurality of measurement points on a sheet material to conduct press-forming of the sheet material with a press-processing device at a predetermined forming speed. Strain states at respective points on the press-formed sheet material are plotted on a forming limit diagram including the forming limit curve of a sheet material to produce a strain distribution chart. Subsequently, the closest point to the forming limit curve among the points is defined as a specific measurement point. When this specific measurement point is located in the bulge region, the forming speed of a press-processing device is decreased to be slower than the above-mentioned predetermined forming speed. Meanwhile, when this specific measurement point is located in the draw region, the forming speed of a press-processing device is increased to be faster than the above-mentioned predetermined forming speed.Type: ApplicationFiled: October 4, 2007Publication date: April 15, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Yuichi Nagai, Hideo Meguri
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Publication number: 20100018280Abstract: A press-working apparatus capable of forming a clear character line. The press-working apparatus forms a product having a character line. The press-working apparatus comprises an upper die and a lower die arranged across a steel sheet, an upper die mechanism for moving the upper die toward and away from the lower die, a first holder and a second holder for clamping the steel sheet and applying an unwrinkling force to the same, and a control unit for controlling the upper die mechanism and the first holder. The upper die is divided on the character line of the product into a first upper die and a second upper die. The control unit makes the unwrinkling force by the first holder stronger than that by the second holder, so that the steel sheet is press-worked by the second upper die and then by the first upper die.Type: ApplicationFiled: October 15, 2007Publication date: January 28, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Shingo Maeda, Hideo Meguri, Seiji Takahashi, Yuichi Nagai
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Publication number: 20070240479Abstract: In a press working apparatus 10, while a servo motor 24 is acting, an upper die 38 is made to come close to a lower die 52 and press working of the first time is conducted on a steel plate 12. A slider 32 is raised to a movable punch preparation position. A movable punch 90 is protruded from a die face 38a of the upper die 38 by width H and locked by a mechanical lock 94. The upper die 38 is made to come close to the lower die 52 again and the steel plate 12 is pushed with the upper die 38 and at the same time an additional worked portion 12a is pushed and deformed with the movable punch 90 so as to conduct press working of the second time. After the movable punch 90 has been retracted, the slider 32 is raised.Type: ApplicationFiled: April 10, 2007Publication date: October 18, 2007Applicant: HONDA MOTOR CO., LTD.Inventors: Yuichi Nagai, Hideo Meguri, Kenzo Takeda, Takayuki Egawa
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Patent number: 6954679Abstract: A shape data specifies the shape of an elongated product within an overall coordinate system. Local coordinate systems are defined on respective cross-sections of the elongated product in the overall coordinate system. The local coordinate system is designed to represent a stable die of a bending apparatus. The images of the elongated product protruding forward from the stable die within the respective local coordinate systems serve to specify the position of a movable die of the bending apparatus. The specified position reflects the deformation induced in the elongated product between the stable and movable dies. An ideal movement amount of the movable die can be determined based on the determined positions within the local coordinate systems. The determined movement amount can be utilized to prepare the control data for the bending apparatus.Type: GrantFiled: September 25, 2000Date of Patent: October 11, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kenzo Takeda, Manabu Maruyama, Hideo Meguri, Yoshihiro Kageyama