Patents by Inventor Tomoaki Tsuyoshi
Tomoaki Tsuyoshi 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: 7654174Abstract: An adjustment unit has a driver for turning an adjustment screw, a sleeve having a hexagonal hole connected to a rotating shaft, an insertion member connected to the upper end of the driver and of which a part is inserted in the sleeve, a pipe concentrically provided around the driver and having at its forward end a socket for rotating an adjustment nut, and a gear body provided concentric with the pipe and rotating the pipe. The sleeve has a short tiltable support section in contact with the hexagonal hole. A gap is provided between the hexagonal hole of the gear body and a hexagonal column section of the pipe. The driver and the pipe tilt about the tilting support section as the fulcrum.Type: GrantFiled: May 18, 2006Date of Patent: February 2, 2010Assignee: Honda Motor Co., Ltd.Inventors: Yasuyuki Tachino, Toshiyuki Miyajima, Tomoaki Tsuyoshi
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Patent number: 7628097Abstract: A bolt-tightening tool for tightening two bolts at the same time. The bolt-tightening tool includes a first rotating shaft coupled with a motor shaft and a second rotating shaft coupled with a motor case. A first bolt is tightened with the first rotating shaft, while a second bolt is tightened with the second rotating shaft, whereby the first and the second bolts are tightened with a same amount of torque.Type: GrantFiled: January 25, 2007Date of Patent: December 8, 2009Assignee: Honda Motor Co., Ltd.Inventors: Tomoaki Tsuyoshi, Yasuyuki Tachino, Chihiro Morimoto
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Patent number: 7578276Abstract: An automatic tappet clearance adjusting device, comprising an adjusting unit adjusting the projected amount of a rocker arm by advancing and retreating an adjust screw to and from the tip of the rocker arm, a pressure setting part electrically controlling the pressure of an air supply source part based on the measurement signals of a primary side pressure sensor measuring the pressure of the air supply source part so that the pressure becomes a specified one, a supply pipeline allowing the air supply source part to communicate with a combustion chamber through a variable orifice, and a control mechanism part controlling the adjusting unit based on measurement signals of a secondary side pressure sensor measuring the pressure of the supply pipeline. The pressure is set to 1.5 kPa by the pressure setting part and the variable orifice.Type: GrantFiled: September 28, 2005Date of Patent: August 25, 2009Assignee: Honda Motor Co., Ltd.Inventors: Junichi Matsuura, Takehisa Handa, Tomoaki Tsuyoshi
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Patent number: 7556005Abstract: An automatic tappet clearance adjuster comprising a unit for adjusting the projection by advancing/retracting an adjust screw from the forward end of a rocker arm, a section for detecting the torque by rotating the adjust screw, and a control mechanism section for controlling the adjusting unit according to the torque value measured by the torque detecting section. The control mechanism section measures the torque value continuously when a valve is closed by retracting the adjust screw from the open state of the valve. A rotation reference position corresponding to the intersection of a first approximation line and a second approximation line approximating the sections immediately before and after the inflection point of differential value of the torque value is detected as a reference point, and the adjust screw is retracted by a set amount from the reference point.Type: GrantFiled: September 28, 2005Date of Patent: July 7, 2009Assignee: Honda Motor Co., Ltd.Inventors: Yasuyuki Tachino, Toshiyuki Miyajima, Tomoaki Tsuyoshi
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Publication number: 20090107296Abstract: An adjustment unit has a driver for turning an adjustment screw, a sleeve having a hexagonal hole connected to a rotating shaft, an insertion member connected to the upper end of the driver and of which a part is inserted in the sleeve, a pipe concentrically provided around the driver and having at its forward end a socket for rotating an adjustment nut, and a gear body provided concentric with the pipe and rotating the pipe. The sleeve has a short tiltable support section in contact with the hexagonal hole. A gap is provided between the hexagonal hole of the gear body and a hexagonal column section of the pipe. The driver and the pipe tilt about the tilting support section as the fulcrum.Type: ApplicationFiled: May 18, 2006Publication date: April 30, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Yasuyuki Tachino, Toshiyuki Miyajima, Tomoaki Tsuyoshi
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Publication number: 20090064824Abstract: A bolt-tightening tool for tightening two bolts at the same time. The bolt-tightening tool includes a first rotating shaft coupled with a motor shaft and a second rotating shaft coupled with a motor case. A first bolt is tightened with the first rotating shaft, while a second bolt is tightened with the second rotating shaft, whereby the first and the second bolts are tightened with a same amount of torque.Type: ApplicationFiled: January 25, 2007Publication date: March 12, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Tomoaki Tsuyoshi, Yasuyuki Tachino, Chihiro Morimoto
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Patent number: 7497194Abstract: A tappet clearance automatic adjusting device comprising an adjusting unit for advancing/retracting an adjust screw from the forward end of a rocker arm and adjusting the projection amount, a torque detecting section for detecting the torque by rotating the adjust screw, and a control mechanism section for controlling the adjusting unit based on a torque value measured at the torque detecting section. The control mechanism section starts retracting the adjust screw when a valve is opened and continuously measures the torque value obtained when the valve is closed. A position, corresponding to time when variation in the filtering value obtained by smoothing the torque value through moving average is a threshold value or smaller, is detected as a reference point and the adjust screw is retracted from the reference point by a set amount.Type: GrantFiled: September 30, 2005Date of Patent: March 3, 2009Assignee: Honda Motor Co., Ltd.Inventors: Yasuyuki Tachino, Toshiyuki Miyajima, Tomoaki Tsuyoshi
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Publication number: 20080127924Abstract: A tappet clearance automatic adjusting device comprising an adjusting unit for advancing/retracting an adjust screw from the forward end of a rocker arm and adjusting the projection amount, a torque detecting section for detecting the torque by rotating the adjust screw, and a control mechanism section for controlling the adjusting unit based on a torque value measured at the torque detecting section. The control mechanism section starts retracting the adjust screw when a valve is opened and continuously measures the torque value obtained when the valve is closed. A position, corresponding to time when variation in the filtering value obtained by smoothing the torque value through moving average is a threshold value or smaller, is detected as a reference point and the adjust screw is retracted from the reference point by a set amount.Type: ApplicationFiled: September 30, 2005Publication date: June 5, 2008Inventors: Yasuyuki Tachino, Toshiyuki Miyajima, Tomoaki Tsuyoshi
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Publication number: 20080022956Abstract: An automatic tappet clearance adjusting device, comprising an adjusting unit adjusting the projected amount of a rocker arm by advancing and retreating an adjust screw to and from the tip of the rocker arm, a pressure setting part electrically controlling the pressure of an air supply source part based on the measurement signals of a primary side pressure sensor measuring the pressure of the air supply source part so that the pressure becomes a specified one, a supply pipeline allowing the air supply source part to communicate with a combustion chamber through a variable orifice, and a control mechanism part controlling the adjusting unit based on measurement signals of a secondary side pressure sensor measuring the pressure of the supply pipeline. The pressure is set to 1.5 kPa by the pressure setting part and the variable orifice.Type: ApplicationFiled: September 28, 2005Publication date: January 31, 2008Applicant: Honda Motor Co,. Ltd.Inventors: Junichi Matsuura, Takehisa Handa, Tomoaki Tsuyoshi
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Publication number: 20070266972Abstract: An automatic tappet clearance adjuster comprising a unit for adjusting the projection by advancing/retracting an adjust screw from the forward end of a rocker arm, a section for detecting the torque by rotating the adjust screw, and a control mechanism section for controlling the adjusting unit according to the torque value measured by the torque detecting section. The control mechanism section measures the torque value continuously when a valve is closed by retracting the adjust screw from the open state of the valve. A rotation reference position corresponding to the intersection of a first approximation line and a second approximation line approximating the sections immediately before and after the inflection point of differential value of the torque value is detected as a reference point, and the adjust screw is retracted by a set amount from the reference point.Type: ApplicationFiled: September 28, 2005Publication date: November 22, 2007Applicant: HONDA MOTOR CO.,. LTDInventors: Yasuyuki Tachino, Toshiyuki Miyajima, Tomoaki Tsuyoshi