公开(公告)号：US10768561B2

公开(公告)日：2020-09-08

申请号：US16509737

申请日：2019-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi Eiki ,  Hiroki Kawasaki ,  Atsushi Kohama ,  Yuhiro Sakai

IPC: G03G15/20 ,  G03G15/00

Abstract: A fixing device includes a cylindrical rotatable fixing belt, a flat heater, a safety device, a heater holding part and a pressuring member. The flat heater has a plurality of heat generating parts. The safety device is arranged across two adjacent heat generating parts to interrupt power supply to the heat generating parts in a case where temperature reaches a threshold value. The heater holding part holds the flat heater so that the flat heater comes into contact with an inner circumference face of the fixing belt. The pressuring member sandwiches the fixing belt with the flat heater to form a pressuring area for sandwiching and conveying a sheet between the fixing belt and the pressuring roller.

公开(公告)号：US20200241456A1

公开(公告)日：2020-07-30

申请号：US16774944

申请日：2020-01-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Atsushi Kohama ,  Takashi Eiki ,  Yuhiro Sakai ,  Hiroki Kawasaki

IPC: G03G15/20 ,  G03G15/00

Abstract: A fixing device includes a fixing belt, a heating portion, and a belt guide member. The heating portion heats the fixing belt. The belt guide member includes a guide portion and an engaging portion. The guide portion guides the fixing belt to move along a moving path. The engaging portion is provided to project from the guide portion outward in a width direction of the fixing belt, wherein the engaging portion is engaged with a connector at an engagement position that intersects with a plane that includes a center, in the width direction, of the connector attached to the heating portion in an attachment direction perpendicular to the width direction.

公开(公告)号：US10514639B2

公开(公告)日：2019-12-24

申请号：US16183915

申请日：2018-11-08

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroki Kawasaki ,  Takashi Eiki ,  Kotatsu Kawaguchi ,  Ryohei Tokunaga ,  Atsushi Kohama ,  Yuhiro Sakai ,  Sadanori Nakae ,  Yuta Kitabayashi ,  Shunsaku Fujii

IPC: G03G15/20 ,  H05B3/26

Abstract: A heating unit includes a circuit board, a plurality of heating parts, and a plurality of wiring parts. The heating parts are arranged in a first direction on a surface of the circuit board. The wiring parts are provided on the surface of the circuit board and electrically connect the heating parts and a power source to feed the heating parts. The wiring parts respectively include electrode terminal parts electrically connected to the power source outside the heating parts in the first direction. Sizes in a second direction orthogonal to the first direction of the heating parts are set to decrease gradually or stepwisely with separating in the first direction from the electrode terminal parts.

公开(公告)号：US09804547B2

公开(公告)日：2017-10-31

申请号：US15265525

申请日：2016-09-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Kotatsu Kawaguchi ,  Takashi Eiki ,  Takefumi Yotsutsuji

IPC: G03G15/20

CPC classification number: G03G15/206 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt rotatably located around a rotation axis, a pressure member rotatably located, and a pressing member. The pressure member is brought into pressure contact with the fixing belt to form a fixing nip. The pressing member includes a pressing surface that presses the fixing belt toward a side of the pressure member. The pressing surface includes a plane surface portion extending along a conveyance direction of a recording medium, and a curved surface portion located at a downstream side of the plane surface portion in the conveyance direction of the recording medium. The curved surface portion is curved along an outer peripheral surface of the pressure member. The curved surface portion has a curvature radius larger than a curvature radius of the outer peripheral surface of the pressure member before a deformation in association with a formation of the fixing nip.

公开(公告)号：US09405245B2

公开(公告)日：2016-08-02

申请号：US14925396

申请日：2015-10-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Satoshi Ishii ,  Takashi Eiki ,  Takefumi Yotsutsuji

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

Abstract: A fixing device includes a fixing belt, a pressuring member, a heat source, a pressing member, a heating stop device and a deformation preventing member. The deformation preventing member is configured to face an inner circumferential face of the fixing belt. In a state where the fixing belt is not broken in a circumferential direction, the fixing belt and the deformation preventing member are arranged at an interval, and when the fixing belt is broken in the circumferential direction, the fixing belt is deformed and comes into contact with the deformation preventing member so that the fixing belt is prevented from being deformed to a side far from the heating stop device.

Abstract translation: 固定装置包括定影带，加压构件，热源，按压构件，加热停止装置和变形防止构件。 防变形构件构成为面对定影带的内周面。 在定影带在圆周方向上不断裂的状态下，定影带和变形防止部件间隔设置，当定影带在圆周方向上断裂时，定影带变形并接触 与变形防止构件一起防止定影带变形到远离加热停止装置的一侧。

公开(公告)号：US09400465B2

公开(公告)日：2016-07-26

申请号：US14933246

申请日：2015-11-05

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi Eiki ,  Yoshihiro Yamagishi ,  Takefumi Yotsutsuji

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2017

Abstract: A fixing device fixing an image on a recording medium includes a fixing belt rotatable around a first rotation axis, a pressuring member, a heat source body and a cover member. The pressuring member forms a nip part pressuring and making the recording medium pass through with the fixing belt. The heat source body is arranged inside the fixing belt and heats the fixing belt by emitting radiant heat. The cover member is arranged between the fixing belt and the heat source body and covers the heat source body. The nip part has a passing area where the recording medium passes through and a non-passing area outside the passing area in an axial direction. The cover member covers a part of the heat source body corresponding to the non-passing area and includes through holes formed so as to adjust surface temperature of the heat source body.

Abstract translation: 将图像固定在记录介质上的定影装置包括可围绕第一旋转轴线旋转的定影带，加压构件，热源主体和盖构件。 加压构件形成压合部，并使记录介质通过定影带。 热源体设置在定影带内部，并通过发射辐射热来加热定影带。 盖构件设置在定影带和热源体之间并覆盖热源体。 夹持部具有记录介质通过的通过区域和通过区域的轴向不通过区域。 盖构件覆盖与不通过区域对应的热源体的一部分，并且包括形成为调节热源体的表面温度的通孔。

公开(公告)号：US09372457B2

公开(公告)日：2016-06-21

申请号：US14925474

申请日：2015-10-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yoshihiro Yamagishi ,  Satoshi Ishii ,  Takashi Eiki ,  Takefumi Yotsutsuji

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2039 ,  G03G15/2064

Abstract: A fixing device includes a fixing belt, a pressuring member, a heat source, a pressing member, a heating stop device, shape restricting members and biasing members. The fixing belt is provided to be rotatable around a rotation axis. The pressing member is provided to be rotatable and to come into pressure contact with the fixing belt so as to form a fixing nip. The heat source heats the fixing belt. The pressing member presses the fixing belt to a side of the pressuring member. The heating stop device faces an outer circumferential face of the fixing belt and to operate at an operating temperature so as to stop the heat source from heating the fixing belt. The shape restricting members are attached to both end parts of the fixing belt and restricts a shape of the fixing belt.

Abstract translation: 定影装置包括定影带，加压构件，热源，按压构件，加热停止装置，形状限制构件和偏置构件。 定影带设置成能够围绕旋转轴线旋转。 按压构件设置成可旋转并与定影带压力接触以形成定影夹持部。 热源加热定影带。 按压构件将定影带按压到加压构件的一侧。 加热停止装置面向定影带的外周面并在操作温度下操作，以便使热源停止加热定影带。 形状限制构件附接到定影带的两个端部，并限制定影带的形状。