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公开(公告)号：US12092968B2
公开(公告)日：2024-09-17
申请号：US18108804
申请日：2023-02-13
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Takeshi Nishiyama
CPC classification number: G03G15/0216 , G03G21/1814 , G03G21/1821 , G03G2215/025 , G03G2221/1657
Abstract: A process unit includes a photoreceptor drum, a charging roller, and a cam member. The cam member includes a mounting portion that externally fits to a shaft portion of the charging roller and a contact portion that protrudes to an outside of the mounting portion. Then, the charging roller is maintained in a separate state by bringing the contact portion of the cam member into contact with an outer surface of the drum main body, and the charging roller is switched to a contact state by rotating the cam member dependently with rotation of the photoreceptor drum in a normal direction.
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公开(公告)号：US10036997B2
公开(公告)日：2018-07-31
申请号：US15856265
申请日：2017-12-28
Applicant: Sharp Kabushiki Kaisha
Inventor： Yoshihiro Yoshikawa , Yuhsuke Yoshimoto , Takeshi Nishiyama
IPC: G03G21/18
CPC classification number: G03G21/18 , G03G21/181 , G03G21/1814 , G03G2215/0132
Abstract: A process unit includes a photoreceptor drum, a frame and seal members. The photoreceptor drum has drum flanges protruded outwardly from both end surfaces of a substrate. The frame supports the photoreceptor drum rotatably. The seal members are provided between both end surfaces of the photoreceptor drum and the frame, and support the drum flanges. Each of the seal members includes an elastic member and a hard member. The elastic member and the hard member are adhered and laminated with each other in an axial direction of the photoreceptor drum. Furthermore, the hard member is arranged so as to be brought into contact with the photoreceptor drum.
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公开(公告)号：US09891582B2
公开(公告)日：2018-02-13
申请号：US15262659
申请日：2016-09-12
Applicant: Sharp Kabushiki Kaisha
Inventor： Yoshihiro Yoshikawa , Yuhsuke Yoshimoto , Takeshi Nishiyama
IPC: G03G21/18
CPC classification number: G03G21/18 , G03G21/181 , G03G21/1814 , G03G2215/0132
Abstract: A process unit includes a photoreceptor drum, a frame and seal members. The photoreceptor drum has drum flanges protruded outwardly from both end surfaces of a substrate. The frame supports the photoreceptor drum rotatably. The seal members are provided between both end surfaces of the photoreceptor drum and the frame, and support the drum flanges. Each of the seal members includes an elastic member and a hard member. The elastic member and the hard member are adhered and laminated with each other in an axial direction of the photoreceptor drum. Furthermore, the hard member is arranged so as to be brought into contact with the photoreceptor drum.
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公开(公告)号：US10444653B2
公开(公告)日：2019-10-15
申请号：US16112714
申请日：2018-08-26
Applicant: Sharp Kabushiki Kaisha
Inventor： Yoshihiro Yoshikawa , Yuhsuke Yoshimoto , Takeshi Nishiyama
IPC: G03G15/02
Abstract: A corona discharge device including a corona electrode provided with multiple sharpened tip portions in a row includes a cleaning member which cleans the tip portions of the corona electrode while reciprocating along a predetermined movement direction set in advance with the tip portions biting into the cleaning member. A cleaning position at a surface of the cleaning member is different in a direction intersecting a longitudinal direction of the corona electrode between when the cleaning member moves toward one side in the movement direction and when the cleaning member moves toward another side in the movement direction.
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Patent Agency Ranking
5.发明授权Electronic apparatus having pivotable support member for supporting electric circuit board 有权具有用于支撑电路板的可枢转支撑构件的电子设备公开(公告)号：US09170551B2
公开(公告)日：2015-10-27
申请号：US14614182
申请日：2015-02-04
Applicant: Sharp Kabushiki Kaisha
Inventor： Takeshi Nishiyama
CPC classification number: G03G15/80 , G03G21/16 , G03G21/1623 , G03G2215/0132
Abstract: An electronic apparatus includes a functional unit, an electric circuit board, a pivotable support member, an outer cover, and wiring. The functional unit is disposed inside the electronic apparatus. The electric circuit board is configured to control the functional unit. The pivotable support member is shaped rectangular having a vertical length that is shorter than a horizontal length thereof and is pivotally movable about a pivoting axis defined to extend along one horizontally extending side of the pivotable support member between a closed position in which the pivotable support member covers the functional unit and an open position in which the functional unit is exposed. The outer cover is disposed more outwardly than the pivotable support member. The wiring passes through a pivoting axis side of the pivotable support member to connect the functional unit to the electric circuit board.
Abstract translation: 电子设备包括功能单元，电路板，可枢转支撑构件，外盖和布线。 功能单元设置在电子设备内。 电路板被配置为控制功能单元。 可枢转支撑构件是矩形的，具有比其水平长度短的垂直长度，并且可围绕枢转轴线枢转运动，枢转轴线限定为在可枢转支撑构件的一个水平延伸侧延伸的关闭位置之间，其中可枢转支撑构件 覆盖功能单元和暴露功能单元的打开位置。 外盖比可枢转支撑构件更向外设置。 布线穿过可枢转支撑构件的枢转轴侧，以将功能单元连接到电路板。
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6.发明授权公开(公告)号：US08983331B2
公开(公告)日：2015-03-17
申请号：US14466568
申请日：2014-08-22
Applicant: Sharp Kabushiki Kaisha
Inventor： Takeshi Nishiyama
CPC classification number: G03G15/80 , G03G21/16 , G03G21/1623 , G03G2215/0132
Abstract: An electronic apparatus includes a functional unit, an electric circuit board, a pivotable support member, an outer cover, and wiring. The functional unit is disposed inside the electronic apparatus. The electric circuit board is configured to control the functional unit. The pivotable support member is shaped rectangular having a vertical length that is shorter than a horizontal length thereof and is pivotally movable about a pivoting axis defined to extend along one horizontally extending side of the pivotable support member between a closed position in which the pivotable support member covers the functional unit and an open position in which the functional unit is exposed. The outer cover is disposed more outwardly than the pivotable support member. The wiring passes through a pivoting axis side of the pivotable support member to connect the functional unit to the electric circuit board.
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公开(公告)号：US11079696B2
公开(公告)日：2021-08-03
申请号：US16700461
申请日：2019-12-02
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Takeshi Nishiyama
Abstract: A processing device includes: a frame that supports a photosensitive drum; a bearing member that biases a charge roller in the direction to be in contact with the photosensitive drum; and a holder that is switchable between a holding state where the charge roller is separated from the photosensitive drum and a canceled state where the holding state is canceled so that the roller is brought into contact with the photosensitive drum; wherein a canceling member is provided in at least one of inside the processing-device attachment and an attachment body attached to an image forming apparatus main body at a front side to cause the holder to shift from the holding state to the canceled state. The canceling member causes the holder to shift from the holding state to the canceled state when the attachment body is attached to the image forming apparatus main body at the front side.
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公开(公告)号：US10088769B2
公开(公告)日：2018-10-02
申请号：US15590226
申请日：2017-05-09
Applicant: Sharp Kabushiki Kaisha
Inventor： Yoshihiro Yoshikawa , Yuhsuke Yoshimoto , Takeshi Nishiyama
IPC: G03G15/02
Abstract: A corona discharge device including a corona electrode provided with multiple sharpened tip portions in a row includes a cleaning member which cleans the tip portions of the corona electrode while reciprocating along a predetermined movement direction set in advance with the tip portions biting into the cleaning member. A cleaning position at a surface of the cleaning member is different in a direction intersecting a longitudinal direction of the corona electrode between when the cleaning member moves toward one side in the movement direction and when the cleaning member moves toward another side in the movement direction.
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公开(公告)号：US10036994B2
公开(公告)日：2018-07-31
申请号：US15586834
申请日：2017-05-04
Applicant: Sharp Kabushiki Kaisha
Inventor： Takeshi Nishiyama , Yuhsuke Yoshimoto
CPC classification number: G03G21/0047 , G03G15/0225 , G03G15/0258 , G03G15/0291
Abstract: An electrifier cleaning mechanism includes a cleaning member which makes contact with part of a long discharge member, a ball screw arranged in parallel with a longitudinal direction of the discharge member and rotatably supported, a drive source which rotates the ball screw in both of forward and reverse directions, a holding member which holds the cleaning member and has a screw hole in which a screw part of the ball screw is screwed, and rotation of which in a circumferential direction of the ball screw is regulated, and a pressing member which presses the holding member from a first end side of the discharge member toward a second end side thereof in the longitudinal direction.
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