公开(公告)号：US20140153982A1

公开(公告)日：2014-06-05

申请号：US14084127

申请日：2013-11-19

Applicant: Tomoya ADACHI ,  Atsushi TAKEHARA ,  Tomohiko FUJII ,  Yutaka NAITOH ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Yasuharu KAWARASAKI ,  Naoki NAKATAKE ,  Keiji KUNIMI ,  Takahiro SANADA ,  Yasuhide MATSUNO ,  Rumi MIYAZAKI ,  Kyoko ABE ,  Takeshi YAMASHITA ,  Yasuhiro FUJIWARA

Inventor： Tomoya ADACHI ,  Atsushi TAKEHARA ,  Tomohiko FUJII ,  Yutaka NAITOH ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Yasuharu KAWARASAKI ,  Naoki NAKATAKE ,  Keiji KUNIMI ,  Takahiro SANADA ,  Yasuhide MATSUNO ,  Rumi MIYAZAKI ,  Kyoko ABE ,  Takeshi YAMASHITA ,  Yasuhiro FUJIWARA

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G15/2064 ,  G03G2215/2035 ,  G03G2215/2061

Abstract: A fixing device includes a nip formation pad disposed opposite an inner circumferential surface of an endless belt and a pressing rotary body pressed against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressing rotary body, through which a recording medium is conveyed. The pressing rotary body has a diameter increasing from a center to each lateral end in an axial direction thereof. The nip formation pad includes a projection disposed downstream from a rotation axis of the pressing rotary body in a recording medium conveyance direction. The projection projects toward the pressing rotary body in an amount increasing from each lateral end to a center in a longitudinal direction of the nip formation pad parallel to the axial direction of the pressing rotary body.

Abstract translation: 定影装置包括与环形带的内圆周表面相对设置的压区形成垫，以及通过环形带压靠压区形成垫的压制旋转体，以在环形带和压制旋转体之间形成定影辊隙， 传送记录介质。 按压旋转体的直径从轴心方向的中心向各侧端增大。 压区形成垫包括在记录介质传送方向上设置在按压旋转体的旋转轴线的下游的突起。 突起朝向按压旋转体突出地以与挤压旋转体的轴向方向平行的压区形成垫的纵向方向上的每个横向端部至中心的量增加。

公开(公告)号：US20140072354A1

公开(公告)日：2014-03-13

申请号：US14012340

申请日：2013-08-28

Applicant: Minoru TOYODA ,  Tomohiko FUJII ,  Tomoya ADACHI ,  Yutaka NAITOH ,  Yoshiharu TAKAHASHI ,  Hitoshi FUJIWARA ,  Yasuharu KAWARASAKI

Inventor： Minoru TOYODA ,  Tomohiko FUJII ,  Tomoya ADACHI ,  Yutaka NAITOH ,  Yoshiharu TAKAHASHI ,  Hitoshi FUJIWARA ,  Yasuharu KAWARASAKI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A fixing unit includes an endless belt unit accommodating a heat source, a pressure roller to rotate in contact with the fixing belt unit forming a pressure border therebetween, and a heat transfer member heated by the heat source to heat the fixing belt unit. The heat transfer member is secured inside an inner circumferential surface of the fixing belt unit and supports the fixing belt unit. A fixed member is secured inside the inner circumferential surface of the fixing belt unit and is pressed against the pressure roller via the fixing belt unit. The heat transfer member has at least one convex portion partially formed in an outer circumferential surface of the heat transfer member in a rotational direction of the fixing belt unit and a longitudinal direction of the heat transfer member to narrow a gap formed between the heat transfer member and the fixing belt unit.

Abstract translation: 固定单元包括容纳热源的环形带单元，与形成其间的压力边界的定影带单元接触地旋转的加压辊和由热源加热的传热构件以加热定影带单元。 传热构件固定在定影带单元的内圆周表面内并支撑定影带单元。 固定部件固定在定影带单元的内周面内，经由定影带单元被压靠压力辊。 传热构件具有至少一个凸部，该凸部部分地沿着定影带单元的旋转方向在传热构件的外周面中形成，并且传热构件的纵向方向使形成在传热构件之间的间隙变窄 和定影带单元。

公开(公告)号：US20140056625A1

公开(公告)日：2014-02-27

申请号：US13953966

申请日：2013-07-30

Applicant: Yutaka NAITOH ,  Tomohiko FUJII ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Tomoya ADACHI ,  Yasuharu KAWARASAKI ,  Tetsu MORINO ,  Isamu KUBO ,  Yoshiharu TAKAHASHI

Inventor： Yutaka NAITOH ,  Tomohiko FUJII ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Tomoya ADACHI ,  Yasuharu KAWARASAKI ,  Tetsu MORINO ,  Isamu KUBO ,  Yoshiharu TAKAHASHI

IPC: G03G15/20

CPC classification number: G03G21/1685 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing unit includes an endless belt accommodating a heat source inside a loop formed by the endless belt, a rotary pressing member rotating in contact with the endless belt in a pressure contact section, and a heat transfer member secured to a side plate within the loop of the endless belt to support and heat the endless belt with heat conducted from the heat source. The heat transfer member has an opening opposite the rotary pressing member. A securing member is disposed in the opening of the heat transfer member in pressure contact with the rotary pressing member via the endless belt. The heat transfer member and the securing member collectively include a pair of latching parts to firmly connect the heat transfer member and the securing member with each other when one of the latching parts is fitted to the other one of the latching parts.

Abstract translation: 定影单元包括：环形带，其在由环形带形成的环内容纳热源;旋转按压构件，其在压力接触部分中与环形带接触旋转;以及传热构件，固定到环内的侧板 的环形带，以便从热源传导的热量来支撑和加热环形带。 传热构件具有与旋转按压构件相对的开口。 固定构件设置在传热构件的开口中，经由环形带与旋转按压构件压力接触。 传热构件和固定构件共同包括一对闩锁部件，当一个闩锁部件嵌合到另一个闩锁部件中时，将传热构件和固定构件彼此牢固地连接。

公开(公告)号：US20250036048A1

公开(公告)日：2025-01-30

申请号：US18782036

申请日：2024-07-24

Applicant: Yuusuke FURUICHI ,  Hitoshi FUJIWARA

Inventor： Yuusuke FURUICHI ,  Hitoshi FUJIWARA

IPC: G03G15/20 ,  B32B38/00

Abstract: A heating device including a heater; a flange including a beam, wherein the flange rotatably supports an endless belt; a temperature detector to detect a temperature, the temperature detector disposed inside the endless belt; a lead wire connected to the temperature detector, the lead wire extending from an inside of the endless belt to an outside of the endless belt through an inside of the flange, wherein the inside of the flange is a side surrounded by the beam and the other surface of the flange; a heater holder to hold the heater; and a gap separates the flange from one of the heater, the heater holder, and a stay, when all of the heater, the heater holder, and the stay were pressed toward one side of the flange, and the gap is smaller than a diameter of the lead wire.

公开(公告)号：US20230297017A1

公开(公告)日：2023-09-21

申请号：US18183651

申请日：2023-03-14

Applicant: Natsuki WATANABE ,  Hitoshi FUJIWARA ,  Shigeo NANNO ,  Yuusuke FURUICHI

Inventor： Natsuki WATANABE ,  Hitoshi FUJIWARA ,  Shigeo NANNO ,  Yuusuke FURUICHI

IPC: G03G15/20

CPC classification number: G03G15/2064

Abstract: A pressure switching mechanism includes a rotatable support, a biasing member, and a switching rotation member. The rotatable support rotates around a first rotation shaft to support a contact member such that the contact member is movable in a direction toward or away from a contacted member. The biasing member has one end connected to a biased portion of the rotatable support, which is located on a side opposite the first rotation shaft with respect to a virtual line passing through a contact portion between the contact member and the contacted member, and applies a biasing force to the rotatable support. The switching rotation member is connected to another end of the biasing member opposite the one end of the biasing member, rotates around a second rotation shaft, and has a rotation operating end which is on a side opposite the second rotation shaft with respect to the virtual line.

公开(公告)号：US20210041814A1

公开(公告)日：2021-02-11

申请号：US16916390

申请日：2020-06-30

Applicant: Hitoshi FUJIWARA

Inventor： Hitoshi FUJIWARA

IPC: G03G15/20

Abstract: A fixing device includes a first rotator having an endless form, a second rotator, a heater arranged in at least one of the first rotator and the second rotator, a guide facing an end of the first rotator, and a nip formation pad that is in contact with the second rotator via the first rotator to form a nip between the second rotator and the nip formation pad. The second rotator is configured to move between a pressing position at which the second rotator presses the first rotator and a non-pressing position at which the second rotator does not press the first rotator. The nip formation pad is configured to separate from the guide when the second rotator is at the pressing position.

公开(公告)号：US20200341419A1

公开(公告)日：2020-10-29

申请号：US16845756

申请日：2020-04-10

Applicant: Hiroyuki SHIMADA ,  Hiroshi YOSHINAGA ,  Hitoshi FUJIWARA

Inventor： Hiroyuki SHIMADA ,  Hiroshi YOSHINAGA ,  Hitoshi FUJIWARA

IPC: G03G15/20 ,  G03G21/16

Abstract: A fixing device includes a rotator that rotates and a fixing device cover. The fixing device cover includes an interior face that is disposed opposite the rotator, a first aperture that is disposed opposite the rotator, and a recess that surrounds the first aperture and extends in a gravity direction. A frame is interposed between the interior face of the fixing device cover and the rotator. The frame includes a second aperture that is disposed opposite the rotator and the first aperture. A rib is mounted on the frame and extends from the second aperture toward the interior face of the fixing device cover.

公开(公告)号：US20150346662A1

公开(公告)日：2015-12-03

申请号：US14719506

申请日：2015-05-22

Applicant: Yasuharu KAWARASAKI ,  Tomoya ADACHI ,  Yutaka NAITOH ,  Hitoshi FUJIWARA ,  Masahiro SAMEI

Inventor： Yasuharu KAWARASAKI ,  Tomoya ADACHI ,  Yutaka NAITOH ,  Hitoshi FUJIWARA ,  Masahiro SAMEI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes an endless belt rotatable in a given direction of rotation and a thermal conductor to conduct heat from a heater to the endless belt. A pressure rotator is pressed against the endless belt to form a fixing nip therebetween. An abutment contacts the endless belt to restrict a trajectory of the endless belt to bring the endless belt into contact with the thermal conductor in a particular circumferential span spanning from a particular position upstream from the fixing nip to the fixing nip in the direction of rotation of the endless belt and to separate the endless belt from the thermal conductor in at least a part of an outboard circumferential span outboard from the particular circumferential span in the direction of rotation of the endless belt.

Abstract translation: 定影装置包括沿给定旋转方向旋转的环形带和用于将热量从加热器传导到环形带的热导体。 压力旋转器被压靠在环形带上，以在它们之间形成一个定影辊隙。 支座接触环形带以限制环形带的轨迹，以使环形带与特定圆周跨度的热导体接触，该特定圆周跨度从跨过定影辊隙上游的特定位置到定影辊隙的旋转方向 环形带并且在环形带的旋转方向上的特定圆周跨度的外侧圆周跨度的至少一部分中将环形带与热导体分离。

公开(公告)号：US20140153983A1

公开(公告)日：2014-06-05

申请号：US14084902

申请日：2013-11-20

Applicant: Tomohiko FUJII ,  Shigeo NANNO ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Tomoya ADACHI ,  Yasuharu KAWARASAKI

Inventor： Tomohiko FUJII ,  Shigeo NANNO ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Tomoya ADACHI ,  Yasuharu KAWARASAKI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a nip formation pad disposed opposite an inner circumferential surface of an endless belt and pressing the endless belt against a pressing rotary body to form a fixing nip between the endless belt and the pressing rotary body. A recording medium is conveyed through the fixing nip. The endless belt slides over a friction reducer sandwiched between the endless belt and the nip formation pad. The friction reducer includes a body and at least one tab projecting from the body in a direction opposite a recording medium conveyance direction. A friction reducer fastener is attached to the tab of the friction reducer and placed inside the nip formation pad to mount the friction reducer on the nip formation pad.

Abstract translation: 定影装置包括与环形带的内周面相对设置的压区形成垫，并将环形带压靠在压制旋转体上，以在环形带和压制旋转体之间形成定影辊隙。 记录介质通过定影辊隙传送。 环形带在夹在环形带和辊隙形成垫之间的摩擦减小器上滑动。 摩擦减速器包括主体和至少一个翼片，其沿着与记录介质输送方向相反的方向从主体突出。 摩擦减速器紧固件附接到摩擦减速器的突片上并且放置在辊隙形成垫内部以将摩擦减小器安装在辊隙形成垫上。

公开(公告)号：US20140112691A1

公开(公告)日：2014-04-24

申请号：US14040866

申请日：2013-09-30

Applicant: Shigeo NANNO ,  Yutaka NAITOH ,  Minoru TOYODA ,  Tomohiko FUJII ,  Hitoshi FUJIWARA

Inventor： Shigeo NANNO ,  Yutaka NAITOH ,  Minoru TOYODA ,  Tomohiko FUJII ,  Hitoshi FUJIWARA

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a heat conductor disposed opposite an inner circumferential surface of an endless belt to heat the endless belt. A nip formation pad is disposed opposite the inner circumferential surface of the endless belt and presses the endless belt against a pressing rotary body to form a fixing nip between the endless belt and the pressing rotary body through which a recording medium bearing a toner image is conveyed. A support is disposed opposite an inner circumferential surface of the heat conductor and contacts an abutment face of the nip formation pad to support the nip formation pad against pressure from the pressing rotary body. A heat insulator is interposed between the heater and the nip formation pad and the support to shield the nip formation pad and the support from the heater.

Abstract translation: 定影装置包括与环形带的内周面相对设置的加热导体的加热导体。 压区形成垫与环形带的内周表面相对地设置，并将环形带压靠在压制旋转体上，以在环形带和压制旋转体之间形成定影辊隙，通过该压紧旋转体，承载调色剂图像的记录介质 。 支撑件布置成与导热体的内圆周表面相对并且接触压区形成垫的邻接表面以支撑压区形成垫抵抗来自压制旋转体的压力。 加热器和辊隙形成垫和支撑件之间插入绝热体，以将压区形成垫和支撑件从加热器屏蔽。