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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
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.
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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.
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公开(公告)号：US20230244169A1
公开(公告)日：2023-08-03
申请号：US18162888
申请日：2023-02-01
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masakazu Uehara , Hironori Takahashi , Tomohiro Watatani , Shota Onishi , Yuhiro Sakai
CPC classification number: G03G15/2064 , G03G21/1647 , G03G21/1685
Abstract: Provided is a fixing device including: a fixing belt; a pressure roller which pressurizes toner on a sheet that passes through a pressure area; a pair of retention members each including a shaft-supporting portion which rotatably guides one of both end portions of the fixing belt in an axial direction, and a restriction surface which restricts a movement of the fixing belt in the axial direction; and a frame including a pair of side plates which rotatably support both end portions of the pressure roller in the axial direction as well as support the fixing belt via the pair of retention members, in which attachment positions of the pair of retention members in the pair of side plates are provided such that a gap becomes larger on a downstream side of a passing direction of the sheet with respect to the pressure area than on an upstream side.
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24.发明申请公开(公告)号：US20210382425A1
公开(公告)日：2021-12-09
申请号：US17342035
申请日：2021-06-08
Applicant: KYOCERA Document Solutions Inc.
Inventor： Fumito Nakamoto , Masakazu Uehara , Tomohiro Watatani , Yuhiro Sakai
IPC: G03G15/20
Abstract: A fixing device includes a fixing belt, a pressure applying member, and a heater holding member. The fixing belt fixes a toner image to a sheet. The pressure applying member forms a nip portion together with an outer peripheral surface of the fixing belt. The heater holding member holds a heater that applies heat to the fixing belt. The heater holding member includes a side portion and a rib. The side portion extends from the nip portion along an inner peripheral surface of the fixing belt and guides the fixing belt. The rib stands on the side portion and extends from a fixing belt conveyance direction downstream end of the nip portion where the fixing belt and the heater holding member are in contact with each other, toward a downstream in a peripheral rotation direction of the fixing belt, and guides the fixing belt to peripherally rotate.
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公开(公告)号：US20210382424A1
公开(公告)日：2021-12-09
申请号：US17341956
申请日：2021-06-08
Applicant: KYOCERA Document Solutions Inc.
Inventor： Fumito Nakamoto , Masakazu Uehara , Tomohiro Watatani , Yuhiro Sakai
IPC: G03G15/20
Abstract: A fixing device includes a fixing belt, a pressure applying member, and a heater holding member. The fixing belt fixes toner to a sheet. The pressure applying member forms a nip portion together with an outer peripheral surface of the fixing belt and causes the fixing belt to peripherally rotate while applying pressure to the fixing belt at the nip portion. The heater holding member holds a heater that applies heat to the fixing belt. The heater holding member includes: a side portion that extends from the nip portion along an inner peripheral surface of the fixing belt and guides the fixing belt; and a plurality of inclined ribs that are disposed on the side portion to face the inner peripheral surface and formed such that an interval between them is gradually narrowed as they proceed in a direction in which the fixing belt peripherally rotates.
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Patent Agency Ranking
公开(公告)号：US20210364960A1
公开(公告)日：2021-11-25
申请号：US17324886
申请日：2021-05-19
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masakazu Uehara , Tomohiro Watatani , Yuhiro Sakai , Fumito Nakamoto
IPC: G03G15/20
Abstract: A fixing device includes a heater, a heater holding member, a stay sheet-metal, and a belt holding member. The stay sheet-metal includes a top plate and side plates and is configured to control a load applied to the heater holding member, the side plates extending respectively from opposite sides of the top plate in a short-length direction of the top plate, toward the heater holding member. The belt holding member holds the fixing belt such that the fixing belt can peripherally rotate, the belt holding member holding at least one end of the heater holding member in a longitudinal direction thereof and at least one end of the stay sheet-metal in a longitudinal direction thereof. The top plate of the stay sheet-metal is formed to extend to at least one end of the stay sheet-metal in the longitudinal direction thereof.
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公开(公告)号：US11126120B2
公开(公告)日：2021-09-21
申请号：US17010286
申请日：2020-09-02
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hironori Takahashi , Masakazu Uehara , Tomohiro Watatani , Yuhiro Sakai , Fumito Nakamoto
IPC: G03G15/20
Abstract: A fixing device includes a heating section. The heating section includes a heater, a heater holding member, a heat-sensitive body, a cover member, and an urging member. The heater holding member holds the heater. The heat-sensitive body faces the heater. The cover member covers the heat-sensitive body. The urging member urges the cover member in a first direction which is toward the heater from the heat-sensitive body. The urging member extends in a second direction intersecting with the first direction and engages with the heater holding member and the cover member.
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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
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.
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29.发明申请公开(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
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.
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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
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.
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