Patents by Inventor Daiki KIYOHARA
Daiki KIYOHARA 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: 12186875Abstract: A nailer for suppressing misfire while keeping operability. In a first mode, a control circuit drives a drive source when a second ON determination is made and a first ON determination is made in a state where a second operation unit is maintained at a second ON position, and when the drive source is driven and then a second OFF determination is made in a state where a first operation unit is maintained at a first ON position, the control circuit does not drive the drive source again unless returning to the initial state. In a second mode, the control circuit drives the drive source when the first ON determination is made and the second ON determination is made in a state where the first operation unit is maintained at the first ON position. A second OFF determination time in the second mode is longer than in the first mode.Type: GrantFiled: March 31, 2021Date of Patent: January 7, 2025Assignee: KOKI HOLDINGS CO., LTD.Inventors: Tetsuhito Shige, Tatsuya Ito, Daiki Kiyohara, Hiroaki Irei
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Publication number: 20240217081Abstract: Workability and endurance of a working machine is improved with a simple configuration. A working machine includes: an ejecting portion 7; a striking portion 30 striking a fastener; and a magazine 20 feeding the fastener to the ejecting portion 7. The magazine 20 includes: a plate-shaped base member 20a extending in a front and back direction B1 and configured to catch the fastener to be movable in the front and back direction B1; a feeder 20b switchable between a contact state representing contact with the fastener caught with the base member 20a and a contactless state representing contactless with the fastener at time of movement in the front and back direction B1; and a guiding portion guiding movement of the feeder 20b in the front and back direction B1. The working machine includes a detector 21 detecting a position of the feeder 20b in the front and back direction B1.Type: ApplicationFiled: March 25, 2022Publication date: July 4, 2024Inventors: Daiki KIYOHARA, Tetsuhito SHIGE, Hiroaki IREI
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Patent number: 11858101Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.Type: GrantFiled: November 4, 2022Date of Patent: January 2, 2024Assignee: KOKI HOLDINGS CO., LTD.Inventors: Takeshi Saitou, Tetsuhito Shige, Daiki Kiyohara, Masashi Nishida
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Publication number: 20230166390Abstract: A nailer for suppressing misfire while keeping operability. In a first mode, a control circuit drives a drive source when a second ON determination is made and a first ON determination is made in a state where a second operation unit is maintained at a second ON position, and when the drive source is driven and then a second OFF determination is made in a state where a first operation unit is maintained at a first ON position, the control circuit does not drive the drive source again unless returning to the initial state. In a second mode, the control circuit drives the drive source when the first ON determination is made and the second ON determination is made in a state where the first operation unit is maintained at the first ON position. A second OFF determination time in the second mode is longer than in the first mode.Type: ApplicationFiled: March 31, 2021Publication date: June 1, 2023Inventors: Tetsuhito SHIGE, Tatsuya ITO, Daiki KIYOHARA, Hiroaki IREI
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Publication number: 20230050091Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.Type: ApplicationFiled: November 4, 2022Publication date: February 16, 2023Inventors: Takeshi SAITOU, Tetsuhito SHIGE, Daiki KIYOHARA, Masashi NISHIDA
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Publication number: 20220355452Abstract: A driving tool capable of suppressing the increase in the number of components is provided. The driving tool includes an ejection unit 23 to which a fastener is supplied and a striking unit capable of moving with respect to the ejection unit 23 so as to drive the fastener supplied to the ejection unit 23 into a workpiece, and the driving tool further includes a first push lever 74 capable of contacting with and separating from the workpiece and capable of moving with respect to the ejection unit 23, a second push lever 135 capable of moving in conjunction with the first push lever 74, and a blade guide 120 and a cover 30 having a function to guide a movement of the first push lever 74 and the second push lever 135 with respect to the ejection unit 23 in a predetermined direction.Type: ApplicationFiled: May 29, 2020Publication date: November 10, 2022Inventors: Tetsuhito SHIGE, Daiki KIYOHARA
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Patent number: 11491625Abstract: Provided is a driving machine capable of stabilizing a relationship between timing when a first movable member starts operating in a first directing and timing when a second movable member starts operating in a second direction. The driving machine including a first movable member 12 operable in a first direction D1 and a second direction D2, and a second movable member 18 operable in the first direction D1 and the second direction D2 has a first regulating mechanism, a second regulating mechanism, and a third regulating mechanism 71, and the third regulating mechanism is held in a first state when the first movable member 12 is prevented from operating in the first direction D1, and the third regulating mechanism 71 switches from the first state to the second state when the first movable member 12 is allowed to operate in the first direction D1 and operates.Type: GrantFiled: September 28, 2018Date of Patent: November 8, 2022Assignee: KOKI HOLDINGS CO., LTD.Inventors: Tetsuhito Shige, Daiki Kiyohara, Yoshiichi Komazaki, Masashi Nishida
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Patent number: 11491629Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.Type: GrantFiled: March 30, 2018Date of Patent: November 8, 2022Assignee: KOKI HOLDINGS CO., LTD.Inventors: Takeshi Saitou, Tetsuhito Shige, Daiki Kiyohara, Masashi Nishida
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Publication number: 20210101272Abstract: A driver capable of suppressing increase in a load torque of a motor when a striking mechanism is moved by the torque of the motor against a force of a first moving mechanism is provided. The driver includes a striking mechanism 12 movable in a first direction B1 and a second direction B2 opposite to the first direction B1 and a first moving mechanism configured to move the striking mechanism 12 in the first direction B1 to strike a fastener, and the driver further includes a motor, a second moving mechanism 45 rotated by the torque of the motor and configured to move the striking mechanism 12 in the second direction against a force of the first moving mechanism, and torque suppression mechanisms 45A to 45H configured to suppress increase in the torque of the motor when the striking mechanism 12 is moved in the second direction B2.Type: ApplicationFiled: March 30, 2018Publication date: April 8, 2021Inventors: Takeshi SAITOU, Tetsuhito SHIGE, Daiki KIYOHARA, Masashi NISHIDA
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Publication number: 20200282535Abstract: Provided is a driving machine capable of stabilizing a relationship between timing when a first movable member starts operating in a first directing and timing when a second movable member starts operating in a second direction. The driving machine including a first movable member 12 operable in a first direction D1 and a second direction D2, and a second movable member 18 operable in the first direction D1 and the second direction D2 has a first regulating mechanism, a second regulating mechanism, and a third regulating mechanism 71, and the third regulating mechanism is held in a first state when the first movable member 12 is prevented from operating in the first direction D1, and the third regulating mechanism 71 switches from the first state to the second state when the first movable member 12 is allowed to operate in the first direction D1 and operates.Type: ApplicationFiled: September 28, 2018Publication date: September 10, 2020Inventors: Tetsuhito SHIGE, Daiki KIYOHARA, Yoshiichi KOMAZAKI, Masashi NISHIDA