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1. 发明授权

US11256202B2 Snap ring, rotator device, fixing device, and image forming apparatus 有权
公开(公告)号：US11256202B2
公开(公告)日：2022-02-22
申请号：US17123780
申请日：2020-12-16
申请人： Yohhei Watanabe , Naoto Suzuki , Yuta Azeyanagi , Nobuo Kuwabara , Kenji Honjoh , Teppei Kawata , Haruki Nagata , Michiharu Suzuki
发明人： Yohhei Watanabe , Naoto Suzuki , Yuta Azeyanagi , Nobuo Kuwabara , Kenji Honjoh , Teppei Kawata , Haruki Nagata , Michiharu Suzuki
IPC分类号： G03G15/00 , F16B21/00 , F16C35/00 , G03G15/20 , G03G21/16 , F16B21/18 , F16C35/063
摘要： A snap ring is set to a set portion of a shaft of a rotator from a direction orthogonal to an axial direction of the shaft. The snap ring includes a first arcuate portion and a second arcuate portion facing each other, being elastically deformable in directions away from each other, holding the set portion by elastic deformation restoring force. One ends of the first and second arcuate portions are away from each other to form an insertion portion to insert the set portion. When the snap ring is not used, the first arcuate portion has a same radius of curvature as the second arcuate portion and the set portion, and a center of curvature closer to the second arcuate portion than the first arcuate portion, and the second arcuate portion has a center of curvature closer to the first arcuate portion than the second arcuate portion.

2. 发明授权

US10401764B2 Cam drive device and image forming apparatus incorporating same 有权
公开(公告)号：US10401764B2
公开(公告)日：2019-09-03
申请号：US15832900
申请日：2017-12-06
申请人： Haruki Nagata , Ryo Hasegawa , Atsushi Nagata , Kenji Honjoh
发明人： Haruki Nagata , Ryo Hasegawa , Atsushi Nagata , Kenji Honjoh
IPC分类号： F16H7/02 , F16H25/14 , G03G15/00 , G03G15/16
摘要： A cam drive device includes a cam to rotate; a displacement body to be displaced in response to a change in a rotation position of the cam in contact with the displacement body; a motor to rotate the cam; and a power source to output an electric current to be supplied to the motor. An electric current to cause a stall torque to the motor being a stop state is changed in response to a change in a rotation stop position of the cam.

3. 发明授权

US09519245B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09519245B2
公开(公告)日：2016-12-13
申请号：US14712307
申请日：2015-05-14
申请人： Haruki Nagata , Ryo Hasegawa , Naoto Kochi , Atsushi Nagata , Takahiro Konishi
发明人： Haruki Nagata , Ryo Hasegawa , Naoto Kochi , Atsushi Nagata , Takahiro Konishi
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G2215/00738 , G03G2215/0193
摘要： An image forming apparatus includes an image bearer, a nip forming device, a contact-and-separation device, a thickness information retrieving device, and a controller. The contact-and-separation device moves the image bearer and the nip forming device to contact and separate from each other. The controller controls the contact-and-separation device based on information on a thickness of a recording medium obtained by the thickness information retrieving device such that in a case in which a thickness of a preceding recording medium and a thickness of a successive recording medium are different in continuous printing in which a plurality of recording media is printed out continuously, the contact-and-separation device adjusts a space between the image bearer and the nip forming device when the preceding recording medium exits the transfer nip to a preset size corresponding to the thickness of the successive recording medium that enters the transfer nip.
摘要翻译：图像形成装置包括图像载体，压区形成装置，接触 - 分离装置，厚度信息检索装置和控制器。接触分离装置使图像载体和辊隙形成装置相互接触和分离。控制器基于由厚度信息检索装置获得的记录介质的厚度的信息来控制接触 - 分离装置，使得在先前记录介质的厚度和连续记录介质的厚度为在连续打印多个记录介质的连续打印不同的情况下，当前一记录介质离开传送辊隙时，接触 - 分离装置调整图像载体和辊隙形成装置之间的空间，使其对应于进入转印辊隙的连续记录介质的厚度。

4. 发明申请

US20150346651A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150346651A1
公开(公告)日：2015-12-03
申请号：US14712307
申请日：2015-05-14
申请人： Haruki NAGATA , Ryo HASEGAWA , Naoto KOCHI , Atsushi NAGATA , Takahiro KONISHI
发明人： Haruki NAGATA , Ryo HASEGAWA , Naoto KOCHI , Atsushi NAGATA , Takahiro KONISHI
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G2215/00738 , G03G2215/0193
摘要： An image forming apparatus includes an image bearer, a nip forming device, a contact-and-separation device, a thickness information retrieving device, and a controller. The contact-and-separation device moves the image bearer and the nip forming device to contact and separate from each other. The controller controls the contact-and-separation device based on information on a thickness of a recording medium obtained by the thickness information retrieving device such that in a case in which a thickness of a preceding recording medium and a thickness of a successive recording medium are different in continuous printing in which a plurality of recording media is printed out continuously, the contact-and-separation device adjusts a space between the image bearer and the nip forming device when the preceding recording medium exits the transfer nip to a preset size corresponding to the thickness of the successive recording medium that enters the transfer nip.
摘要翻译：图像形成装置包括图像载体，压区形成装置，接触 - 分离装置，厚度信息检索装置和控制器。接触分离装置使图像载体和辊隙形成装置相互接触和分离。控制器基于由厚度信息检索装置获得的记录介质的厚度的信息来控制接触 - 分离装置，使得在先前记录介质的厚度和连续记录介质的厚度为在连续打印多个记录介质的连续打印不同的情况下，当前一记录介质离开传送辊隙时，接触 - 分离装置调整图像载体和辊隙形成装置之间的空间，使其对应于进入转印辊隙的连续记录介质的厚度。

5. 发明申请

US20210200124A1 SNAP RING, ROTATOR DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20210200124A1
公开(公告)日：2021-07-01
申请号：US17123780
申请日：2020-12-16
申请人： Yohhei WATANABE , Naoto SUZUKI , Yuta AZEYANAGI , Nobuo KUWABARA , Kenji HONJOH , Teppei KAWATA , Haruki NAGATA , Michiharu SUZUKI
发明人： Yohhei WATANABE , Naoto SUZUKI , Yuta AZEYANAGI , Nobuo KUWABARA , Kenji HONJOH , Teppei KAWATA , Haruki NAGATA , Michiharu SUZUKI
IPC分类号： G03G15/20
摘要： A snap ring is set to a set portion of a shaft of a rotator from a direction orthogonal to an axial direction of the shaft. The snap ring includes a first arcuate portion and a second arcuate portion facing each other, being elastically deformable in directions away from each other, holding the set portion by elastic deformation restoring force. One ends of the first and second arcuate portions are away from each other to form an insertion portion to insert the set portion. When the snap ring is not used, the first arcuate portion has a same radius of curvature as the second arcuate portion and the set portion, and a center of curvature closer to the second arcuate portion than the first arcuate portion, and the second arcuate portion has a center of curvature closer to the first arcuate portion than the second arcuate portion.

6. 发明申请

US20180164720A1 CAM DRIVE DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20180164720A1
公开(公告)日：2018-06-14
申请号：US15832900
申请日：2017-12-06
申请人： Haruki Nagata , Ryo Hasegawa , Atsushi Nagata , Kenji Honjoh
发明人： Haruki Nagata , Ryo Hasegawa , Atsushi Nagata , Kenji Honjoh
IPC分类号： G03G15/16 , F16H25/14 , F16H7/02
CPC分类号： G03G15/1675 , F01L13/00 , F16H7/023 , F16H25/14 , G03G15/161 , G03G15/1615 , G03G15/167 , G03G15/5004 , G03G2221/1657
摘要： A cam drive device includes a cam to rotate; a displacement body to be displaced in response to a change in a rotation position of the cam in contact with the displacement body; a motor to rotate the cam; and a power source to output an electric current to be supplied to the motor. An electric current to cause a stall torque to the motor being a stop state is changed in response to a change in a rotation stop position of the cam.

7. 发明授权

US10261450B2 Image forming apparatus 有权
公开(公告)号：US10261450B2
公开(公告)日：2019-04-16
申请号：US16014085
申请日：2018-06-21
申请人： Ryo Hasegawa , Kenji Honjoh , Atsushi Nagata , Haruki Nagata
发明人： Ryo Hasegawa , Kenji Honjoh , Atsushi Nagata , Haruki Nagata
IPC分类号： G03G15/01 , G03G15/16 , G03G15/00
摘要： An image forming apparatus includes an apparatus body, a plurality of image bearers, an endless belt, a contact and separation mechanism to generate a first trajectory and a second trajectory of the endless belt, a sensor to detect an object on a surface of the endless belt, and a positioning mechanism to enable the sensor to detect the object in the first trajectory and the second trajectory of the endless belt. The positioning mechanism includes a stay to support the sensor, a first bracket, a second bracket, a first positioning portion attached to the apparatus body to position the sensor in a direction of rotation of the first bracket and the second bracket at a time of the first trajectory, and a second positioning portion attached to the second bracket to position the sensor in the direction of rotation of the first bracket at a time of the second trajectory.

8. 发明申请

US20190025735A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20190025735A1
公开(公告)日：2019-01-24
申请号：US16014085
申请日：2018-06-21
申请人： Ryo HASEGAWA , Kenji HONJOH , Atsushi NAGATA , Haruki NAGATA
发明人： Ryo HASEGAWA , Kenji HONJOH , Atsushi NAGATA , Haruki NAGATA
IPC分类号： G03G15/16 , G03G15/00
摘要： An image forming apparatus includes an apparatus body, a plurality of image bearers, an endless belt, a contact and separation mechanism to generate a first trajectory and a second trajectory of the endless belt, a sensor to detect an object on a surface of the endless belt, and a positioning mechanism to enable the sensor to detect the object in the first trajectory and the second trajectory of the endless belt. The positioning mechanism includes a stay to support the sensor, a first bracket, a second bracket, a first positioning portion attached to the apparatus body to position the sensor in a direction of rotation of the first bracket and the second bracket at a time of the first trajectory, and a second positioning portion attached to the second bracket to position the sensor in the direction of rotation of the first bracket at a time of the second trajectory.

9. 发明授权

US09395659B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09395659B2
公开(公告)日：2016-07-19
申请号：US14259337
申请日：2014-04-23
申请人： Shinya Tanaka , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
发明人： Shinya Tanaka , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605
摘要： An image forming apparatus includes an image carrier that carries a toner image; a transfer member that forms a transfer nip between the transfer member and the image carrier; and a power supply capable of outputting a superimposed transfer bias in which an alternating current component is superimposed onto a direct current component. The toner image on the image carrier is transferred onto a recording medium in the transfer nip by the superimposed transfer bias or a direct current bias consisting of the direct current component output by the power supply. The apparatus also includes a controller that controls the power supply so that an output target value of the direct current component when the direct current component rises up is larger than an output target value of the direct current component when the toner image is transferred onto the recording medium.
摘要翻译：图像形成装置包括承载调色剂图像的图像载体; 转印部件，其在转印部件和图像载体之间形成转印辊隙; 以及能够输出叠加在直流分量上的交流分量的叠加转印偏压的电源。图像载体上的调色剂图像通过叠加的转印偏压或由电源输出的直流分量组成的直流偏压转印到转印辊隙中的记录介质上。该装置还包括控制器，其控制电源，使得当直流分量上升时直流分量的输出目标值大于当调色剂图像被转印到记录上时的直流分量的输出目标值中。

10. 发明申请

US20150346643A1 TRANSFER ASSEMBLY AND IMAGE FORMING APPARATUS INCLUDING SAME 审中-公开
标题翻译：传输组装和图像形成装置，包括它们
公开(公告)号：US20150346643A1
公开(公告)日：2015-12-03
申请号：US14723767
申请日：2015-05-28
申请人： Takahiro KONISHI , Ryo Hasegawa , Kazuosa Kuma , Susumu Mikajiri , Marutomo Goto , Haruki Nagata
发明人： Takahiro KONISHI , Ryo Hasegawa , Kazuosa Kuma , Susumu Mikajiri , Marutomo Goto , Haruki Nagata
IPC分类号： G03G15/16
CPC分类号： G03G15/1685 , G03G15/1665
摘要： The transfer assembly includes a belt, a transfer device, a contact-and-separation device including a retainer, and a first vibration absorber. The transfer device contacts an image bearer via the belt to form a transfer nip portion between the image bearer and the belt and to transfer the toner image onto one of a surface of the belt and a recording medium carried on the surface of the belt. The contact-and-separation device moves the transfer device to contact and separate from the image bearer. The retainer is pivotally supported by a swingable shaft and movable in a first direction in which the transfer device approaches the image bearer and in a second direction opposite to the first direction in which the transfer device separates from the image bearer, to hold the transfer device. The first vibration absorber absorbs vibration transmitted from the swingable shaft to the transfer device via the retainer.
摘要翻译：转印组件包括带，转印装置，包括保持器的接触 - 分离装置和第一振动吸收器。转印装置经由带接触图像载体以在图像载体和带之间形成转印夹持部分，并将调色剂图像转印到带的表面之一和承载在带表面上的记录介质。接触分离装置移动传送装置与图像载体接触并分离。保持器由可摆动的轴可枢转地支撑，并且可沿传送装置接近图像承载的第一方向和与传送装置与图像载体分离的第一方向相反的第二方向移动，以保持传送装置。第一振动吸收器通过保持器吸收从摆动轴传递到传送装置的振动。

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