公开(公告)号：US08983348B2

公开(公告)日：2015-03-17

申请号：US14161337

申请日：2014-01-22

申请人： Shota Kobashigawa ,  Susumu Matsusaka ,  Miwa Shuto ,  Masanobu Yamagata ,  Motokazu Hasegawa ,  Yukari Isoe

发明人： Shota Kobashigawa ,  Susumu Matsusaka ,  Miwa Shuto ,  Masanobu Yamagata ,  Motokazu Hasegawa ,  Yukari Isoe

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2032

摘要： A fixing device that includes a rotary fixing member; a pressure roller configured to press against the fixing member to form a nip with the fixing member; and an induction heating unit as a heat source to heat the fixing member. The induction heating unit includes an excitation coil; a coil retainer to hold the excitation coil; and a cover member disposed opposite the coil retainer in an opposite side of the rotary fixing member, in which the cover member protrudes toward a central predetermined range of the excitation coil in an axial direction of the rotary fixing member to effectively cool the fixing device. The induction heating unit further includes a rectifying member to effectively cool the fixing device.

摘要翻译： 一种定影装置，包括旋转固定构件; 压力辊构造成压靠固定构件以与固定构件形成辊隙; 感应加热单元作为加热固定构件的热源。 感应加热单元包括励磁线圈; 用于保持励磁线圈的线圈保持器; 以及在所述旋转固定构件的相反侧与所述线圈保持器相对设置的盖构件，其中所述盖构件沿所述旋转固定构件的轴向朝向所述励磁线圈的中心预定范围突出，以有效地冷却所述定影装置。 感应加热单元还包括整流构件以有效地冷却定影装置。

公开(公告)号：US09519248B2

公开(公告)日：2016-12-13

申请号：US14148831

申请日：2014-01-07

申请人： Susumu Matsusaka ,  Shota Kobashigawa ,  Motokazu Hasegawa ,  Yukari Isoe

发明人： Susumu Matsusaka ,  Shota Kobashigawa ,  Motokazu Hasegawa ,  Yukari Isoe

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes a rotatable fixing member, a pressing member to contact the fixing member with pressure to form a nip between the pressing member and the fixing member, an induction heating unit serving as a heating source to heat the fixing member, and a conductive wire drawn out of the induction heating unit to be disposed outside the cover member through a hole provided substantially at a center of the cover member in a longitudinal direction of the induction heating unit. The induction heating unit includes an excitation coil, a coil holder to hold the excitation coil, and a cover member provided facing the coil holder with the coil holder interposed between the cover member and the fixing member.

摘要翻译： 定影装置包括可旋转的固定构件，用于在压紧构件和固定构件之间形成压合部的接触固定构件的按压构件，用作加热源的感应加热单元，以及导电 从感应加热单元拉出的导线，通过在感应加热单元的纵向方向上设置在盖构件的大致中心处的孔设置在盖构件的外侧。 感应加热单元包括励磁线圈，用于保持励磁线圈的线圈架和面向线圈架设置的盖构件，线圈架设置在盖构件和固定构件之间。

公开(公告)号：US09482998B2

公开(公告)日：2016-11-01

申请号：US14148831

申请日：2014-01-07

申请人： Susumu Matsusaka ,  Shota Kobashigawa ,  Motokazu Hasegawa ,  Yukari Isoe

发明人： Susumu Matsusaka ,  Shota Kobashigawa ,  Motokazu Hasegawa ,  Yukari Isoe

IPC分类号： G03G15/20

摘要： A fixing device includes a rotatable fixing member, a pressing member to contact the fixing member with pressure to form a nip between the pressing member and the fixing member, an induction heating unit serving as a heating source to heat the fixing member, and a conductive wire drawn out of the induction heating unit to be disposed outside the cover member through a hole provided substantially at a center of the cover member in a longitudinal direction of the induction heating unit. The induction heating unit includes an excitation coil, a coil holder to hold the excitation coil, and a cover member provided facing the coil holder with the coil holder interposed between the cover member and the fixing member.

公开(公告)号：US09164447B2

公开(公告)日：2015-10-20

申请号：US14533227

申请日：2014-11-05

申请人： Shota Kobashigawa ,  Susumu Matsusaka ,  Motokazu Hasegawa ,  Tsuyoshi Hashiyada

发明人： Shota Kobashigawa ,  Susumu Matsusaka ,  Motokazu Hasegawa ,  Tsuyoshi Hashiyada

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes a pressurization member pressed against a fixing rotator and a magnetic flux generator disposed opposite the fixing rotator. A heat generator is disposed opposite the magnetic flux generator to generate heat by a magnetic flux generated by the magnetic flux generator. A magnetic shield is movably disposed inside the heat generator to screen the magnetic flux penetrating through the heat generator. A pressure adjuster presses the pressurization member against the fixing rotator with variable pressure. An interlock interlocks the pressurization member with the magnetic shield. The pressure adjuster presses the pressurization member against the fixing rotator with increased pressure to move the magnetic shield via the interlock to a proximate position in proximity to the heat generator and with decreased pressure to move the magnetic shield via the interlock to a remote position being remote from the heat generator.

摘要翻译： 定影装置包括压靠固定旋转体的加压构件和与定影旋转体相对设置的磁通发生器。 热发生器与磁通发生器相对设置，以由由磁通发生器产生的磁通量产生热量。 磁屏蔽可移动地设置在热发生器内部以屏蔽穿过热发生器的磁通量。 压力调节器以可变的压力将加压构件压靠固定转子。 互锁将加压构件与磁屏蔽互锁。 压力调节器以增加的压力将加压构件压靠固定旋转器，以通过互锁将磁屏蔽件移动到靠近发热体的邻近位置，并且以较小的压力将磁屏蔽件通过互锁件移动到远程位置 来自发热体。

公开(公告)号：US09280107B2

公开(公告)日：2016-03-08

申请号：US14152057

申请日：2014-01-10

申请人： Motokazu Hasegawa ,  Yukari Isoe ,  Susumu Matsusaka

发明人： Motokazu Hasegawa ,  Yukari Isoe ,  Susumu Matsusaka

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2032

摘要： A fixing device includes a rotary fixing member; a pressure roller pressed against the fixing member to form a nip in association with the fixing member; and an induction heater, as a heat source, to heat the fixing member. The induction heater includes an excitation coil to induction-heat the fixing member; a side core disposed along an outer circumference in a longitudinal direction of the excitation coil; and a plurality of arch-shaped cores disposed to cover the excitation coil in the longitudinal direction thereof. The arch-shaped cores include center portions corresponding to an inner side of the excitation coil and bent to the fixing member; and outer end portions extending in the direction leading to the side core without interfering with the excitation coil.

摘要翻译： 固定装置包括旋转固定构件; 压力辊压靠在固定构件上，以与固定构件相关联地形成辊隙; 以及作为热源的感应加热器来加热固定构件。 感应加热器包括用于感应加热固定部件的激励线圈; 沿所述励磁线圈的长度方向的外周配置的侧芯; 以及设置成在其纵向方向上覆盖励磁线圈的多个拱形芯。 拱形芯包括对应于励磁线圈的内侧并弯曲到固定构件的中心部分; 以及外端部沿着导向侧芯的方向延伸而不与励磁线圈相干扰。

公开(公告)号：US08977177B2

公开(公告)日：2015-03-10

申请号：US13414164

申请日：2012-03-07

申请人： Susumu Matsusaka ,  Motokazu Hasegawa ,  Yukari Isoe ,  Tsuyoshi Hashiyada

发明人： Susumu Matsusaka ,  Motokazu Hasegawa ,  Yukari Isoe ,  Tsuyoshi Hashiyada

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device comprises a fixing member having a heat generation layer, an excitation coil disposed opposite an outer circumferential surface of the fixing member to cause the fixing member to induce electromagnetic heat, and a magnetic core to form a continuous magnetic path guiding a magnetic flux generated by the excitation coil to the fixing member. A holder is provided to accommodate and hold the excitation coil and the magnetic core. A first core included in the magnetic core and is arranged opposite the outer circumferential surface of the fixing member not via the excitation coil along a line extended from an axis of the fixing member in a radius direction. An end face of the first core arranged opposite the outer circumferential surface of the fixing member is substantially perpendicular to the line.

摘要翻译： 定影装置包括具有发热层的固定构件，与定影构件的外周面相对地设置以引起固定构件产生电磁热的励磁线圈，以及磁芯，以形成引导磁通量的连续磁路 由激励线圈产生到固定构件。 提供保持器以容纳和保持励磁线圈和磁芯。 包括在磁芯中的第一芯体，并且沿着半径方向从固定构件的轴线延伸的线不经由励磁线圈布置成与固定构件的外周面相对。 与固定构件的外周面相对布置的第一芯的端面基本上垂直于线。

公开(公告)号：US08849169B2

公开(公告)日：2014-09-30

申请号：US13339835

申请日：2011-12-29

申请人： Tsuyoshi Hashiyada ,  Motokazu Hasegawa ,  Susumu Matsusaka ,  Yukari Isoe

发明人： Tsuyoshi Hashiyada ,  Motokazu Hasegawa ,  Susumu Matsusaka ,  Yukari Isoe

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： An induction heating-type fixing device includes a fixing member, an excitation coil, a magnetic core, a holder, and a pressing member. The fixing member includes a heat generating layer to heat and fuse a toner image on a recording medium. The excitation coil wound a predetermined number of times is disposed facing an outer surface of the fixing member, to generate a magnetic flux relative to the fixing member. The magnetic core forms a continuous magnetic path to direct the magnetic flux generated by the excitation coil to the fixing member. The holder holds the excitation coil and the magnetic core. The pressing member is disposed opposite the fixing member to press against the fixing member and form a fixing nip between the fixing member and the pressing member through which the recording medium is conveyed. The magnetic core is exposed from the holder at the fixing member side.

摘要翻译： 感应加热型固定装置包括固定部件，励磁线圈，磁芯，保持器和按压部件。 固定构件包括用于加热和熔合记录介质上的调色剂图像的发热层。 卷绕预定次数的励磁线圈被布置成面向固定构件的外表面，以相对于固定构件产生磁通量。 磁芯形成连续的磁路，将由励磁线圈产生的磁通引导到固定部件。 保持器保持励磁线圈和磁芯。 按压构件与固定构件相对地设置以抵靠固定构件，并在固定构件和按压构件之间形成定影夹持物，通过该构件传送记录介质。 磁芯从固定部件侧的保持件露出。

公开(公告)号：US20140205333A1

公开(公告)日：2014-07-24

申请号：US14152057

申请日：2014-01-10

申请人： Motokazu Hasegawa ,  Yukari Isoe ,  Susumu Matsusaka

发明人： Motokazu Hasegawa ,  Yukari Isoe ,  Susumu Matsusaka

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2032

摘要： A fixing device includes a rotary fixing member; a pressure roller pressed against the fixing member to form a nip in association with the fixing member; and an induction heater, as a heat source, to heat the fixing member. The induction heater includes an excitation coil to induction-heat the fixing member; a side core disposed along an outer circumference in a longitudinal direction of the excitation coil; and a plurality of arch-shaped cores disposed to cover the excitation coil in the longitudinal direction thereof. The arch-shaped cores include center portions corresponding to an inner side of the excitation coil and bent to the fixing member; and outer end portions extending in the direction leading to the side core without interfering with the excitation coil.

摘要翻译： 固定装置包括旋转固定构件; 压力辊压靠在固定构件上，以与固定构件相关联地形成辊隙; 以及作为热源的感应加热器来加热固定构件。 感应加热器包括用于感应加热固定部件的激励线圈; 沿所述励磁线圈的长度方向的外周配置的侧芯; 以及设置成在其纵向方向上覆盖励磁线圈的多个拱形芯。 拱形芯包括对应于励磁线圈的内侧并弯曲到固定构件的中心部分; 以及外端部沿着导向侧芯的方向延伸而不与励磁线圈相干扰。

公开(公告)号：US09002251B2

公开(公告)日：2015-04-07

申请号：US14182878

申请日：2014-02-18

申请人： Motokazu Hasegawa ,  Susumu Matsusaka ,  Yukari Isoe

发明人： Motokazu Hasegawa ,  Susumu Matsusaka ,  Yukari Isoe

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2032

摘要： A fixing device includes a fixing member including a heat generator and an induction heater to heat the fixing member by electromagnetic induction. The induction heater includes an excitation coil, a ferromagnetic core to form a magnetic path to direct magnetic flux arising from the excitation coil to the fixing member, and a holder to hold the excitation coil and the ferromagnetic core. The holder has a surface facing the heat generator. The surface has a plurality of slits extending parallel to a direction of rotation of the fixing member. The ferromagnetic core is coupled to the holder and covers an open bottom portion of each slit of the plurality of slits to form a plurality of bottomed grooves.

摘要翻译： 定影装置包括：固定构件，其包括发热体和感应加热器，用于通过电磁感应加热固定构件。 感应加热器包括励磁线圈，铁磁芯，以形成将由励磁线圈产生的磁通量引导到固定部件的磁路，以及保持激励线圈和铁磁芯的保持器。 支架具有面向发热体的表面。 表面具有平行于固定构件的旋转方向延伸的多个狭缝。 铁磁芯被连接到保持器上并且覆盖多个狭缝的每个狭缝的开放底部以形成多个有底槽。

公开(公告)号：US09342002B2

公开(公告)日：2016-05-17

申请号：US14132259

申请日：2013-12-18

申请人： Naoko Morisawa ,  Susumu Matsusaka ,  Motokazu Hasegawa ,  Yukari Isoe

发明人： Naoko Morisawa ,  Susumu Matsusaka ,  Motokazu Hasegawa ,  Yukari Isoe

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G15/80 ,  G03G2215/0132

摘要： A fixing device includes a rotary member comprising a heat generation layer; an excitation coil generating magnetic flux, disposed along an axial direction of the rotary member and opposite the rotary member, to heat by induction the heat generation layer; a first demagnetizing coil layered on the excitation coil and generating magnetic flux in a direction reverse to and cancel the magnetic flux that the excitation coil generates; a sheet size detector to obtain a size of a recording sheet on which an image is to be formed by passing through the rotary member; and a drive controller to control driving of the first demagnetizing coil. The drive controller drives the first demagnetizing coil after information including the sheet size information has been obtained.

摘要翻译： 定影装置包括：旋转构件，包括发热层; 产生磁通量的励磁线圈，沿着旋转构件的轴向设置并与旋转构件相对，通过感应发热层进行加热; 层叠在励磁线圈上的第一去磁线圈，并且产生与励磁线圈产生的磁通相反并消除的磁通量的磁通量; 片材尺寸检测器，用于获得通过旋转构件在其上形成图像的记录片材的尺寸; 以及驱动控制器，用于控制第一消磁线圈的驱动。 驱动控制器在已经获得包括纸张尺寸信息的信息之后驱动第一去磁线圈。