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：US12181821B2

公开(公告)日：2024-12-31

申请号：US18343451

申请日：2023-06-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuhiro Sakai ,  Masakazu Uehara ,  Hironori Takahashi ,  Tomohiro Watatani ,  Shota Onishi

IPC: G03G15/20

Abstract: A fixing device according to the present disclosure includes a rotatable endless belt and an end portion holder. The end portion holder supports each of end portions of the fixing belt rotatably, and has a cylindrical part along which an inner circumferential surface of the fixing belt slides and an end wall part which faces an end surface of the fixing belt. The end wall part has a restraint part which faces an outer circumferential surface of the fixing belt with a predetermined interval and restrains the fixing belt from turning up.

公开(公告)号：US11796945B2

公开(公告)日：2023-10-24

申请号：US18049950

申请日：2022-10-26

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomohiro Watatani ,  Yuhiro Sakai

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A fixing device includes a fixing belt, a pressing roller, a flat heater, a heater holder and a pair of mounting members. The flat heater has a first surface coming into contact with an inner circumferential surface of the fixing belt and a second surface opposite to the first surface. The heater holder comes into contact with the second surface of the flat heater. The mounting members comes into contact with both end portions of the first surface of the flat heater in the width direction, and are mounted to the heater holder such that the flat heater is held between the mounting members and the heater holder. The mounting member includes a downstream side end surface contact part which comes into contact with a downstream side end surface of the flat heater in the conveying direction.

公开(公告)号：US11137705B2

公开(公告)日：2021-10-05

申请号：US17145260

申请日：2021-01-08

Applicant: KYOCERA Document Solutions Inc.

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

IPC: G03G15/20 ,  G03G21/16

Abstract: The fixing device includes a cylindrical heated member and a heating part. The cylindrical heated member is long in a width direction of a sheet, and is supported in a rotatable manner with coming into contact with a fixing face of the sheet. The heating part is provided in an inner space of the heated member and heating an inner circumferential face of the heated member. The heating part includes a plurality of heaters disposed side by side in a longitudinal direction of the heated member; and a first temperature sensor measuring a first heater of the plurality of heaters or a heated area of the heated member heated by the first heater. The plurality of heaters and the first temperature sensor are connected in series by a first power supply line.

公开(公告)号：US10969718B2

公开(公告)日：2021-04-06

申请号：US16887275

申请日：2020-05-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomohiro Watatani ,  Masakazu Uehara ,  Hironori Takahashi ,  Yuhiro Sakai ,  Fumito Nakamoto

IPC: G03G15/20 ,  B65G39/14

Abstract: A fixing device includes a fixing belt and a heating section. The heating section faces an inner circumferential surface of the fixing belt. The heating section includes a heater, a heater holding member, a reinforcing member, and at least one rotor. The heater heats the fixing belt. The heater holding member holds the heater. The reinforcing member reinforces the heater holding member. The at least one rotor faces the inner circumferential surface of the fixing belt. The at least one rotor is attached to the reinforcing member.

公开(公告)号：US10747155B2

公开(公告)日：2020-08-18

申请号：US16712175

申请日：2019-12-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masakazu Uehara ,  Hironori Takahashi ,  Tomohiro Watatani ,  Yuhiro Sakai

IPC: G03G15/20

Abstract: In a fixing device, a heating section is disposed opposite to an inner circumferential surface of a fixing belt, and includes a heater, a heater holding member, a reinforcing member extending in a rotation axis of the pressure member, a heat sensitive body disposed on the heater holding member, and an urging member disposed between the reinforcing member and the heat sensitive body. The heater holding member includes an engaging portion engaging with a first end of the reinforcing member. In a state in which the reinforcing member is located opposite to the heater holding member through the reinforcing member turning about the engaging portion as a pivot, the urging member urges the heat sensitive body against the heater and a distance between the heat sensitive body and a second end of the reinforcing member is shorter than a distance between the heat sensitive body and the first end.

公开(公告)号：US10386762B2

公开(公告)日：2019-08-20

申请号：US16101395

申请日：2018-08-11

Applicant: KYOCERA Document Solutions Inc. ,  KYOCERA Corporation

Inventor： Takashi Eiki ,  Hiroki Kawasaki ,  Ryohei Tokunaga ,  Atsushi Kohama ,  Yuhiro Sakai ,  Kotatsu Kawaguchi ,  Hidenobu Nakagawa

IPC: G03G15/20 ,  G03G15/08 ,  G03G15/16

Abstract: A heating unit includes a circuit board, heating parts, and electrode parts. The heating parts are arranged in a first direction on a surface of the circuit board. The electrode parts are disposed on the surface of the circuit board, and electrically connected to both sides of the heating parts in a second direction that is orthogonal to the first direction. Each of the heating parts includes a plurality of heating resistors that is arranged in the first direction. Each of the heating resistors has a size ratio of a first length in the second direction to a second length in the first direction is 1 or more and 100 or less.

公开(公告)号：US09964906B2

公开(公告)日：2018-05-08

申请号：US15423933

申请日：2017-02-03

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuhiro Sakai

IPC: G03G15/20

CPC classification number: G03G15/206 ,  G03G15/2017 ,  G03G15/2032 ,  G03G15/2064

Abstract: A fixing device includes a pressuring member, a fixing frame, a pressuring frame, a pressure changing part, a rotation detecting part and a rotation transmitting part. The pressuring member forms a fixing nip with a fixing member. The fixing frame supports the fixing member. The pressuring frame supports the pressuring member. The pressure changing part changes fixing nip pressure. The rotation transmitting part transmits rotation of the pressuring member to the rotation detecting part. The fixing frame is turnably supported around a fulcrum part provided on the pressuring frame. The pressure changing part turns the fixing frame around the fulcrum part. The rotation transmitting part has a first rotating body and a second rotating body. The first rotating body is provided on a rotation shaft of the pressuring member. The second rotating body is engaged with the first rotating body and rotatably supported around the fulcrum part.