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公开(公告)号：US10788814B2
公开(公告)日：2020-09-29
申请号：US16167946
申请日：2018-10-23
发明人： Daiki Tokushima , Takayuki Kondo
摘要： An encoder includes a base portion, a scale portion that is provided to be relatively rotatable with respect to the base portion, and has a plurality of marks, an imaging element that is disposed in the base portion, and images the marks, and an estimation portion that performs template matching on a captured image in the imaging element by using a reference image, in which the plurality of marks include a first mark and a second mark, and the estimation portion counts the number of pixels of the imaging element corresponding to a rotation angle of the scale portion with respect to the base portion until a position of the second mark is detected from detection of a position of the first mark, and performs calibration on the basis of the counted number of pixels and the rotation angle.
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公开(公告)号：US10139251B2
公开(公告)日：2018-11-27
申请号：US15655107
申请日：2017-07-20
发明人： Daiki Tokushima
IPC分类号： G01D5/34 , G01D5/347 , G05B19/414 , H02P5/46
摘要： A power transmitting apparatus includes a power transmitting section that includes an input shaft section and an output shaft section and transmits drive force from the input shaft section to the output shaft section, a first detection section including a polarizing section that rotates when one of the input shaft section and the output shaft section rotates and has a polarization characteristic, a light source section that irradiates the polarizing section with light, and a light detection section that outputs a signal according to the intensity of the light from the polarizing section, a second detection section that outputs a signal according to the rotational state of the other one of the input shaft section and the output shaft section, and a determination section that determines the rotational state of the polarizing section based on the signal from the light detection section and the signal from the second detection section.
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公开(公告)号：US09725271B2
公开(公告)日：2017-08-08
申请号：US14536044
申请日：2014-11-07
发明人： Masashi Oba , Daiki Tokushima
IPC分类号： B65H23/185 , B65H23/182 , B65H23/188 , B65H23/192 , B65H23/195 , B65H23/198
CPC分类号： B65H23/1825 , B65H23/185 , B65H23/1888 , B65H23/192 , B65H23/1955 , B65H23/198 , B65H2404/14 , B65H2511/142 , B65H2513/108 , B65H2513/11 , B65H2515/31 , B65H2553/212 , B65H2801/15 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A method includes, a first step of starting rotation of a rotating axle, which is configured to detachably support a web, in a direction in which the web is wounded onto the rotating axle, a second step of detecting a tension applied to the web after the first step, a third step of performing open loop control on torque applied to the rotating axle until the tension greater than a designated value is detected with the second step, and a fourth step of performing feedback control on the torque applied to the rotating axle based on the detection value of the tension applied to the web after the tension greater than the designated value is detected with the second step.
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公开(公告)号：US08991967B2
公开(公告)日：2015-03-31
申请号：US14211154
申请日：2014-03-14
发明人： Daiki Tokushima
IPC分类号： B41J29/393 , B41J15/16 , B41J11/00 , B41J15/04
CPC分类号： B41J13/0009 , B41J11/00 , B41J15/042 , B41J15/16
摘要： An image forming apparatus includes a first roller and a second roller on which a recording medium is stretched; a head which performs image forming on the recording medium in an image forming region between the first roller and the second roller; an opening-shutting door which is provided in an external member; an opening-shutting regulation unit which regulates an opening operation of the opening-shutting door; and a control unit which transports the recording medium while applying a tension to the recording medium in the image forming region by controlling rotations of the first and second rollers, and regulates the opening operation of the opening-shutting door by the opening-shutting regulation unit while the head is performing the image forming, in which the control unit releases a regulation of the opening operation of the opening-shutting door by the opening-shutting regulation unit after performing a preparation operation for releasing the regulation which stops the recording medium in a state in which the tension is applied to the recording medium in the image forming region by controlling the rotations of the first and second rollers.
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公开(公告)号：US10759055B2
公开(公告)日：2020-09-01
申请号：US16143822
申请日：2018-09-27
发明人： Takayuki Kondo , Daiki Tokushima
摘要： An encoder includes a base portion, a scale portion that is provided to be relatively movable or rotatable with respect to the base portion, and has three or more marks which are different from each other, an imaging element that is disposed in the base portion, and images the marks, and an estimation portion that selects at least one reference image from among three or more reference images, performs template matching on a captured image in the imaging element by using the reference image, so as to detect positions of the marks, and estimates a movement state or a rotation state of the scale portion with respect to the base portion, in which the estimation portion predicts a reference image to be used for post-template matching on the basis of a result of pre-template matching, and performs the post-template matching by using the predicted reference image.
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公开(公告)号：US09056500B2
公开(公告)日：2015-06-16
申请号：US14481786
申请日：2014-09-09
发明人： Takahito Sanekata , Daiki Tokushima
CPC分类号： B41J11/0085 , B41J11/002 , B41J11/42 , B65H20/10
摘要： An image recording apparatus includes: a heating section which is located further on the downstream side of a transport pathway than an image recording area, but further on the upstream side of the transport pathway than a transport roller which is rotated by a motor; and a control section which lowers the suction power of a suction section to a medium from a first suction power to a second suction power lower than the first suction power during a recording operation and makes a first torque which is generated at the motor in a period which is during the recording operation and in which the suction power of the suction section is a suction power lower than the first suction power, be lower than a second torque which is generated at the motor during a transport operation.
摘要翻译： 图像记录装置包括：加热部，其位于比图像记录区域更远的输送路径的下游侧，但是比传送辊更靠电动机旋转的输送路径的上游侧; 以及控制部，其在记录操作期间将吸入部到介质的吸入功率从第一吸入功率降低到低于第一吸入功率的第二吸入功率，并且使得在电动机中产生的第一转矩在周期 在记录操作期间，吸入部分的吸入功率低于第一吸入功率的吸入功率，其低于在运输操作期间在电动机处产生的第二转矩。
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公开(公告)号：US20140375719A1
公开(公告)日：2014-12-25
申请号：US14481786
申请日：2014-09-09
发明人： Takahito Sanekata , Daiki Tokushima
IPC分类号： B41J11/00
CPC分类号： B41J11/0085 , B41J11/002 , B41J11/42 , B65H20/10
摘要： An image recording apparatus includes: a heating section which is located further on the downstream side of a transport pathway than an image recording area, but further on the upstream side of the transport pathway than a transport roller which is rotated by a motor; and a control section which lowers the suction power of a suction section to a medium from a first suction power to a second suction power lower than the first suction power during a recording operation and makes a first torque which is generated at the motor in a period which is during the recording operation and in which the suction power of the suction section is a suction power lower than the first suction power, be lower than a second torque which is generated at the motor during a transport operation.
摘要翻译： 图像记录装置包括：加热部，其位于比图像记录区域更远的输送路径的下游侧，但是比传送辊更靠电动机旋转的输送路径的上游侧; 以及控制部，其在记录操作期间将吸入部到介质的吸入功率从第一吸入功率降低到低于第一吸入功率的第二吸入功率，并且使得在电动机中产生的第一转矩在周期 在记录操作期间，吸入部分的吸入功率低于第一吸入功率的吸入功率，其低于在运输操作期间在电动机处产生的第二转矩。
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8.发明授权公开(公告)号：US08851620B1
公开(公告)日：2014-10-07
申请号：US14203176
申请日：2014-03-10
发明人： Masashi Oba , Daiki Tokushima
IPC分类号： B41J29/393 , B65H43/00 , B41J15/16
CPC分类号： B41J15/165 , B65H23/0326 , B65H23/038 , B65H2515/842 , B65H2553/41
摘要： An image formation device includes a transport section that transports a recording medium in a transport direction, a width-direction positional change section that changes a position of the recording medium in a width direction, a detector that detects a position of an edge of the recording medium in the width direction within a detection area, a control section that performs width-direction positional control by operating the width-direction positional change section in accordance with a detection result of the detector and by performing feedback control on the position of the recording medium in the width direction, and an image formation section that is located so as to face the recording medium and performs image formation on the recording medium. The control section performs control, during the image formation, in a first control mode where the width-direction positional control is performed with a first frequency response characteristic corresponding to a frequency band including a high frequency band or in a second control mode where the width-direction positional control is performed with a second frequency response characteristic corresponding to a frequency band lower than the high frequency band.
摘要翻译： 图像形成装置包括：输送方向的记录介质的传送部，宽度方向的记录介质的位置的宽度方向的位置变更部;检测记录部的边缘位置的检测部; 在检测区域内沿宽度方向介质的控制部分，通过根据检测器的检测结果操作宽度方向位置变化部分并且通过对记录介质的位置执行反馈控制来执行宽度方向位置控制的控制部分 以及图像形成部，其被定位成面对记录介质并在记录介质上进行图像形成。 控制部在图像形成期间，以对应于包括高频带的频带的第一频率响应特性或第二控制模式进行宽度方向位置控制的第一控制模式进行控制，其中宽度 以与低于高频带的频带对应的第二频率响应特性来执行方向位置控制。
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公开(公告)号：US11628579B2
公开(公告)日：2023-04-18
申请号：US16827811
申请日：2020-03-24
发明人： Akitoshi Maeda , Daiki Tokushima , Takeru Saeki
摘要： A robot system includes a robot, a controller that controls actuation of the robot, and a first external device, wherein the robot has a first member, a second member that pivots relative to the first member, a motor that generates drive power for pivoting the second member relative to the first member, an encoder including a detection unit that detects an amount of rotation of the motor, a control unit that controls actuation of the detection unit, a communication unit that communicates with the controller, and a first device connecting part connected to the first external device, the control unit connected to the detection unit, the communication unit, and the first device connecting part, and a first communication line connecting the communication unit and the controller, and data of the first external device is transmitted to the controller via the first device connecting part and the first communication line.
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公开(公告)号：US11383389B2
公开(公告)日：2022-07-12
申请号：US16775494
申请日：2020-01-29
发明人： Daiki Tokushima , Akitoshi Maeda
摘要： A robot includes a robot control apparatus that communicates with a device, wherein a transmission terminal of a clock synchronization serial communication system of the device and a reception terminal of the robot control apparatus are connected by a signal line, and the robot control apparatus receives an asynchronous signal from the device.
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