Patents by Inventor Kazumasa Nakayasu
Kazumasa Nakayasu 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: 11045916Abstract: This machine tool comprises a machining chamber in which machining of a workpiece is performed, and a tool storage chamber in which a plurality of tools are stored. The machine tool is further provided with a partition which partitions the machining chamber and tool storage chamber from one another. The machine tool is positioned on the front side of the machining chamber, and is equipped with a first sliding door that moves in the width direction, and a second sliding door that is positioned on the front side of the tool storage chamber and that moves in the width direction. The first sliding door and second sliding door are positioned in such a manner that one of the sliding doors is positioned on the front side of the other sliding door, and when one of the sliding doors is opened, said door overlaps with the other sliding door.Type: GrantFiled: September 9, 2016Date of Patent: June 29, 2021Assignee: MAKINO MILLING MACHINE CO., LTD.Inventors: Daisuke Takada, Keisuke Tange, Kazumasa Nakayasu
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Patent number: 10960506Abstract: This machine tool is provided with: a partition that partitions a machining chamber and a tool storage chamber and that has an opening; a shutter; and a receiving member that is formed so as to receive cutting fluid. The partition includes a sidewall member that extends in the vertical direction and an inclined wall member inclined in such a manner so as to become lower from the sidewall member to the interior of the machining chamber. At least part of the opening is formed in the inclined wall member. The receiving member is positioned beneath the shutter, and in such a position so as to receive cutting fluid that drops down along the sidewall member when the shutter is opened.Type: GrantFiled: September 9, 2016Date of Patent: March 30, 2021Assignee: MAKINO MILLING MACHINE CO., LTD.Inventors: Daisuke Takada, Keisuke Tange, Kazumasa Nakayasu
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Publication number: 20200262015Abstract: This machine tool is provided with: a partition that partitions a machining chamber and a tool storage chamber and that has an opening; a shutter; and a receiving member that is formed so as to receive cutting fluid. The partition includes a sidewall member that extends in the vertical direction and an inclined wall member inclined in such a manner so as to become lower from the sidewall member to the interior of the machining chamber. At least part of the opening is formed in the inclined wall member. The receiving member is positioned beneath the shutter, and in such a position so as to receive cutting fluid that drops down along the sidewall member when the shutter is opened.Type: ApplicationFiled: September 9, 2016Publication date: August 20, 2020Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Daisuke TAKADA, Keisuke TANGE, Kazumasa NAKAYASU
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Patent number: 10730155Abstract: A machine tool, which has a tool magazine for storing multiple tools and is for machining a workpiece with a tool held on a main shaft by moving the main shaft relative to the workpiece, wherein the machine tool is provided with: multiple feed shafts for moving the tool relative to the workpiece; a tool magazine drive motor for driving the tool magazine; and a manual pulse generator, which is for sending a positive or negative command pulse to the multiple feed shafts or tool magazine drive motor, the manual pulse generator being provided with a selection switch for selecting one of the multiple feed shafts or the tool magazine drive motor as the destination to which the command pulse is to be sent.Type: GrantFiled: September 9, 2016Date of Patent: August 4, 2020Assignee: MAKINO MILLING MACHINE CO., LTD.Inventors: Keisuke Tange, Kazumasa Nakayasu
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Publication number: 20190358760Abstract: A machine tool includes a machine body; a control panel; a peripheral device; a peripheral device frame that is adjacent to one side surface of the machine body and for which the top view of the area for installing the peripheral device is roughly rectangular, wherein the two corners of one end of the rectangle are supported, and the corner of the other end of the rectangle that is closer to the machine body is supported from below but the corner of the other end of the rectangle that is farther from the machine body is not supported from below; and a coolant filtration and supply device with a coolant tank disposed below the peripheral device frame so as to accept coolant discharged from the machine body, the coolant filtration and supply device being installed so as to be able to move toward and away from the machine body.Type: ApplicationFiled: September 9, 2016Publication date: November 28, 2019Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Taku OBA, Keisuke TANGE, Kazumasa NAKAYASU
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Publication number: 20190232447Abstract: A machine tool, which has a tool magazine for storing multiple tools and is for machining a workpiece with a tool held on a main shaft by moving the main shaft relative to the workpiece, wherein the machine tool is provided with: multiple feed shafts for moving the tool relative to the workpiece; a tool magazine drive motor for driving the tool magazine; and a manual pulse generator, which is for sending a positive or negative command pulse to the multiple feed shafts or tool magazine drive motor, the manual pulse generator being provided with a selection switch for selecting one of the multiple feed shafts or the tool magazine drive motor as the destination to which the command pulse is to be sent.Type: ApplicationFiled: September 9, 2016Publication date: August 1, 2019Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Keisuke TANGE, Kazumasa NAKAYASU
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Publication number: 20190217436Abstract: This machine tool comprises a machining chamber in which machining of a workpiece is performed, and a tool storage chamber in which a plurality of tools are stored. The machine tool is further provided with a partition which partitions the machining chamber and tool storage chamber from one another. The machine tool is positioned on the front side of the machining chamber, and is equipped with a first sliding door that moves in the width direction, and a second sliding door that is positioned on the front side of the tool storage chamber and that moves in the width direction. The first sliding door and second sliding door are positioned in such a manner that one of the sliding doors is positioned on the front side of the other sliding door, and when one of the sliding doors is opened, said door overlaps with the other sliding door.Type: ApplicationFiled: September 9, 2016Publication date: July 18, 2019Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Daisuke TAKADA, Keisuke TANGE, Kazumasa NAKAYASU
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Patent number: 9149900Abstract: According to the machine tool according to the present invention, a top-bottom guide is attached to a back surface of a base frame. By being guided by this top-bottom guide, the lifter moves in the top-bottom direction with respect to the base frame. A drive source which drives rotation of a top-bottom feed screw which extends parallel to the top-bottom guide is attached to a back surface of the base frame. This drive source is coupled with a bottom end of the top-bottom feed screw. As a result, compared to when the drive source is coupled with a top end of the top-bottom feed screw, the center of gravity of the machine tool can be set to a lower position. In this way, a machine tool can be increased in stability.Type: GrantFiled: February 17, 2011Date of Patent: October 6, 2015Assignee: Makino Milling Machine Co., Ltd.Inventors: Shinji Koike, Kazumasa Nakayasu, Kazuya Mayumi
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Patent number: 9126298Abstract: A machining center includes a rotatable tool magazine (22) arranged above a work space (WS) facing a spindle (15) tilted so that the spindle side becomes lower and having a plurality of grippers (24) for holding tools (16) in a circumferential direction, and a shutter (26) arranged below the tool magazine (22) to be able to open and close facing the spindle side. The tool magazine (22) has a tool-free area (AR2) where there are no grippers (24) at a part of the circumferential direction and a tool-holding area (ARA) where there are grippers (24) at another part of the circumferential direction. The tool magazine (22) is controlled in rotation so that when the shutter (26) is closed, the tool-free area (AR2) moves to the spindle side while when the shutter (26) is open, the tool-holding area (AR1) moves to the spindle side.Type: GrantFiled: February 24, 2011Date of Patent: September 8, 2015Assignee: Markino Milling Machine Co., Ltd.Inventors: Shinji Koike, Kazumasa Nakayasu, Yoshitaka Yamaguchi
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Patent number: 8672593Abstract: A cooling method and cooling apparatus which can reduce thermal deformation of a mobile body of a machine tool is provided. On the front of a column (1), a pair of upper and lower guides (3) is formed, and saddle (7) is suspended on guides (3), saddle (7) being movable left and right. Guiding surface (5) of guide (3) and sliding surface (9) of saddle (7) are slip surface and are in contact with each other. Sliding surfaces (9a, 9b, 9d, 9e) which generate a large amount of heat and need to be cooled are identified in advance by simulation. Fluid pipelines (25) for cooling the identified portions generating higher heat are formed, and a coolant liquid is circulated by being passed from portion (9a) generating less heat toward portion (9e) generating higher heat.Type: GrantFiled: September 1, 2008Date of Patent: March 18, 2014Assignee: Makino Milling Machine Co., LtdInventors: Hideshi Sato, Kazumasa Nakayasu, Hidehiko Akasaka
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Publication number: 20130331245Abstract: A machining center includes a rotatable tool magazine (22) arranged above a work space (WS) facing a spindle (15) tilted so that the spindle side becomes lower and having a plurality of grippers (24) for holding tools (16) in a circumferential direction, and a shutter (26) arranged below the tool magazine (22) to be able to open and close facing the spindle side. The tool magazine (22) has a tool-free area (AR2) where there are no grippers (24) at a part of the circumferential direction and a tool-holding area (ARA) where there are grippers (24) at another part of the circumferential direction. The tool magazine (22) is controlled in rotation so that when the shutter (26) is closed, the tool-free area (AR2) moves to the spindle side while when the shutter (26) is open, the tool-holding area (AR1) moves to the spindle side.Type: ApplicationFiled: February 24, 2011Publication date: December 12, 2013Inventors: Shinji Koike, Kazumasa Nakayasu, Yoshitaka Yamaguchi
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Publication number: 20130322979Abstract: According to the machine tool according to the present invention, a top-bottom guide is attached to a back surface of a base frame. By being guided by this top-bottom guide, the lifter moves in the top-bottom direction with respect to the base frame. A drive source which drives rotation of a top-bottom feed screw which extends parallel to the top-bottom guide is attached to a back surface of the base frame. This drive source is coupled with a bottom end of the top-bottom feed screw. As a result, compared to when the drive source is coupled with a top end of the top-bottom feed screw, the center of gravity of the machine tool can be set to a lower position. In this way, a machine tool can be increased in stability.Type: ApplicationFiled: February 17, 2011Publication date: December 5, 2013Applicant: MAKINO MILLING MACHINE CO., LTD.Inventors: Shinji Koike, Kazumasa Nakayasu, Kazuya Mayumi
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Publication number: 20130277169Abstract: During operation of a machine tool (10), an operator can visually check a machining region (39) inside of a splash guard (11) from monitoring windows (22, 23). At this time, if it is found that the front end of a tool (20) is chipped etc., the operator can press the emergency stop switch (25) so as to make the operation of the machine tool (10) stop on an emergency basis. This emergency stop switch (25) is arranged on a chamfered surface (17) which is formed between the front panel (12) and the right side panel (13a). As a result, the operator can simply see the emergency stop button (25) from either the front side of the front panel (12) or the front side of the right side panel (13a). The visibility of the emergency stop switch (25) is improved. Further, it is sufficient to arrange a single emergency stop switch (25) at the chamfered surface (17), so the structure of the machine tool (10) is simplified.Type: ApplicationFiled: February 14, 2011Publication date: October 24, 2013Inventors: Kazumasa Nakayasu, Tomoaki Sugimura
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Publication number: 20100183393Abstract: A cooling method and cooling apparatus which can reduce thermal deformation of a mobile body of a machine tool is provided. On the front of a column (1), a pair of upper and lower guides (3) is formed, and saddle (7) is suspended on guides (3), saddle (7) being movable left and right. Guiding surface (5) of guide (3) and sliding surface (9) of saddle (7) are slip surface and are in contact with each other. Sliding surfaces (9a, 9b, 9d, 9e) which generate a large amount of heat and need to be cooled are identified in advance by simulation. Fluid pipelines (25) for cooling the identified portions generating higher heat are formed, and a coolant liquid is circulated by being passed from portion (9a) generating less heat toward portion (9e) generating higher heat.Type: ApplicationFiled: September 1, 2008Publication date: July 22, 2010Applicant: Makino Milling Mahine Co., Ltd.Inventors: Hideshi Sato, Kazumasa Nakayasu, Hidehiko Akasaka