公开(公告)号：US07194234B2

公开(公告)日：2007-03-20

申请号：US11040873

申请日：2005-01-21

申请人： Noboru Katakabe ,  Masaru Imai ,  Keisuke Fujimoto

发明人： Noboru Katakabe ,  Masaru Imai ,  Keisuke Fujimoto

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2057 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2032 ,  H05B6/145

摘要： An electromagnetic induced heating roller comprises a core member, an elastic layer, induction heating layer, and a mold release layer in this order from inside to outside. Further, a magnetic shield layer for preventing a magnetic flux from penetrating into the core member is interposed between the induction heating layer and the core member. The production of an alternating magnetic field from a magnetic field generating device, a leakage flux having penetrated through the induction heating layer is trapped by the magnetic shield layer. As a result, most of the impressed alternating magnetic flux is consumed for heating the heating layer, resulting in an improvement in the heating efficiency. A trouble is prevented which is generated by heating the bearing of the core member.

摘要翻译： 电磁感应加热辊从内到外依次包括芯部件，弹性层，感应加热层和脱模层。 此外，用于防止磁通量渗透到芯构件中的磁屏蔽层介于感应加热层和芯构件之间。 从磁场产生装置产生交变磁场，穿过感应加热层的漏磁通被磁屏蔽层捕获。 结果，为了加热加热层而消耗大量的外加交变磁通，导致加热效率的提高。 防止通过加热芯构件的轴承而产生的故障。

公开(公告)号：US07122768B2

公开(公告)日：2006-10-17

申请号：US10472410

申请日：2002-10-31

申请人： Masaru Imai ,  Masaaki Nakano ,  Syuuiti Watanabe ,  Keisuke Fujimoto ,  Masaomi Inoue ,  Noboru Katakabe

发明人： Masaru Imai ,  Masaaki Nakano ,  Syuuiti Watanabe ,  Keisuke Fujimoto ,  Masaomi Inoue ,  Noboru Katakabe

IPC分类号： H05B6/14 ,  G03G15/20

CPC分类号： G03G15/2057 ,  G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2025 ,  G03G2215/2029 ,  G03G2215/2032 ,  H05B6/145

摘要： A heating roller (21) includes a heat generating layer (22) that generates heat by electromagnetic induction, a heat insulating layer (23), and a supporting layer (24), which are provided inwardly in this order. The supporting layer (24) is formed of a material having a specific resistance of 1×10−5 Ωm or higher. Therefore, even when the heat generating layer (22) has a thickness smaller than a skin depth, i.e. a thickness defined by a flow of an induction current, so that magnetic flux penetrates the heat generating layer (22) and even reaches the supporting layer (24), heat generation of the supporting layer (24) under an eddy current can be suppressed. Thus, the heat generating layer (22) can be decreased in thermal capacity, and heat generation of the supporting layer (24) is suppressed, so that only the heat generating layer (22) can be heated efficiently. As a result, a warm-up time can be reduced. Further, breakage by heat of, for example, bearings supporting the heating roller (21) can be prevented.

摘要翻译： 加热辊（21）包括通过电磁感应产生热量的发热层（22），隔热层（23）和支撑层（24），这些按顺序向内设置。 支撑层（24）由比电阻为1×10 -5Ω以上的材料形成。 因此，即使当发热层（22）的厚度小于皮肤深度（即由感应电流的流动所限定的厚度）时，磁通量穿透发热层（22）甚至到达支撑层 （24），可以抑制涡流下的支撑层（24）的发热。 因此，发热层（22）的热容量可以降低，并且支撑层（24）的发热被抑制，使得仅能够有效地加热发热层（22）。 结果，可以减少预热时间。 此外，可以防止例如支撑加热辊（21）的轴承受热的破坏。

公开(公告)号：US20070014599A1

公开(公告)日：2007-01-18

申请号：US10575353

申请日：2004-10-06

申请人： Akihiro Yasuda ,  Masaru Imai ,  Noriyuki Tajima ,  Keisuke Fujimoto ,  Hideaki Yamada

发明人： Akihiro Yasuda ,  Masaru Imai ,  Noriyuki Tajima ,  Keisuke Fujimoto ,  Hideaki Yamada

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  H05B6/145

摘要： A fixing apparatus can prevent an excessive rise in temperature of a paper non-passage area due to diverted flow of magnetic flux from a paper passage area of a heat-producing element to a paper non-passage area thereof has a small configuration, A center core is rotated by a rotation section, bringing cutaway parts to a magnetic path masking position, and the degree of magnetic coupling between the center core and a heat-producing roller is weakened, suppressing an excessive rise in temperature of paper non-passage areas of the heat-producing roller. With this fixing apparatus, switching of the intensity of magnetic coupling between the center core and heat-producing roller can be performed simply by rotating the center core. Also, with this fixing apparatus, it is not necessary for magnetism suppressing elements to be provided as separate members, enabling the configuration to be made simpler and less expensive.

摘要翻译： 定影装置可以防止由于从发热元件的纸通道区域到其非通路区域的磁通量的转向流动而导致纸张非通过区域的温度过度上升，具有小的构造A中心 芯部通过旋转部旋转，将切割部分带到磁路遮蔽位置，并且中心芯和发热辊之间的磁耦合程度减弱，抑制纸张非通过区域的温度过度上升 发热辊。 利用这种定影装置，可以简单地通过旋转中心芯来执行中心芯和发热辊之间的磁耦合强度的切换。 此外，利用该定影装置，不需要将磁抑制元件设置为单独的构件，使得能够使构造更简单且更便宜。

公开(公告)号：US07369804B2

公开(公告)日：2008-05-06

申请号：US10575353

申请日：2004-10-06

申请人： Akihiro Yasuda ,  Masaru Imai ,  Noriyuki Tajima ,  Keisuke Fujimoto ,  Hideaki Yamada

发明人： Akihiro Yasuda ,  Masaru Imai ,  Noriyuki Tajima ,  Keisuke Fujimoto ,  Hideaki Yamada

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G15/2053 ,  H05B6/145

摘要： A fixing apparatus can prevent an excessive rise in temperature of a paper non-passage area due to diverted flow of magnetic flux from a paper passage area of a heat-producing element to a paper non-passage area thereof has a small configuration. A center core is rotated by a rotation section, bringing cutaway parts to a magnetic path masking position, and the degree of magnetic coupling between the center core and a heat-producing roller is weakened, suppressing an excessive rise in temperature of paper non-passage areas of the heat-producing roller. With this fixing apparatus, switching of the intensity of magnetic coupling between the center core and heat-producing roller can be performed simply by rotating the center core. Also, with this fixing apparatus, it is not necessary for magnetism suppressing elements to be provided as separate members, enabling the configuration to be made simpler and less expensive.

摘要翻译： 定影装置可以防止由于从发热元件的纸通道区域到纸张非通过区域的磁通量的转向流动而导致纸张非通过区域的温度过度上升，具有小的构造。 中心芯通过旋转部旋转，将切割部分带到磁路掩蔽位置，中心芯和发热辊之间的磁耦合程度减弱，抑制纸张不通过的温度过度上升 发热辊的区域。 利用这种定影装置，可以简单地通过旋转中心芯来执行中心芯和发热辊之间的磁耦合强度的切换。 此外，利用该定影装置，不需要将磁抑制元件设置为单独的构件，使得能够使构造更简单且更便宜。

公开(公告)号：US07424259B2

公开(公告)日：2008-09-09

申请号：US10576307

申请日：2004-10-05

申请人： Masahiro Samei ,  Noboru Katakabe ,  Masaru Imai ,  Hideaki Yamada

发明人： Masahiro Samei ,  Noboru Katakabe ,  Masaru Imai ,  Hideaki Yamada

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2035

摘要： A fixing apparatus that enables the calorific value of a heat-producing rotating element to be stabilized and the heat production efficiency of that heat-producing rotating element to be improved. A fixing apparatus (200) is equipped with a heat-producing sleeve (210), an induction heating apparatus (230), a magnetic field absorption member (233) that absorbs a magnetic field generated by the induction heating apparatus (230), and a fixing roller (240) and pressure roller (250) that grip and rotate the heat-producing sleeve (210). The magnetic field absorption member (233) is located in an area opposite an exciting coil (231) with the heat-producing sleeve (210) between, and absorbs a magnetic field generated by the induction heating apparatus (230). The heat-producing sleeve (210) is composed of a nonmagnetic metallic material of thickness in the range from 10 μm to 500 μm and specific resistance of 80×10−6 Ωcm or less.

摘要翻译： 使得能够使发热旋转元件的发热量稳定并且提高该发热旋转元件的发热效率的定影装置。 定影装置（200）配备有吸收感应加热装置（230）产生的磁场的发热套（210），感应加热装置（230），磁场吸收部件（233），以及 固定辊（240）和夹紧并旋转发热套筒（210）的加压辊（250）。 磁场吸收部件233位于与发热套筒210相对的激励线圈231的区域内，吸收由感应加热装置230产生的磁场。 发热套（210）由厚度在10〜500μm之间的非磁性金属材料构成，电阻率为80×10 -6Ω以下。

公开(公告)号：US20080063445A1

公开(公告)日：2008-03-13

申请号：US11572521

申请日：2005-07-25

申请人： Masaru Imai ,  Noboru Katakabe ,  Youichi Nakamura ,  Naoto Matsuo ,  Tomoyuki Noguchi

发明人： Masaru Imai ,  Noboru Katakabe ,  Youichi Nakamura ,  Naoto Matsuo ,  Tomoyuki Noguchi

IPC分类号： G03G15/20

CPC分类号： G03G15/205

摘要： A heat generating roller, fixing equipment and an image forming apparatus in which warm-up time is shortened while preventing excessive temperature rise and good fixing performance is realized by preventing occurrence of offset. In the heat generating roller, fixing equipment and image forming apparatus, the heat generating roller is formed principally by laying a high permeability conductive layer and a nonmagnetic conductive layer in layer. When a voltage is applied from a power supply (not shown) to an exciting coil and an AC current flow through it, magnetic flux is generated around the exciting coil and a magnetic field is formed. Since the heat generating roller has the high permeability conductive layer and the nonmagnetic conductive layer laid in layer, magnetic coupling of a system consisting of the heat generating roller and the exciting coil is good at the time of low temperature and heat generation of the heat generating roller is accelerated. When the Curie point is exceeded, skin depth becomes deep and skin resistance decreases, which suppresses generation of Joule's heat and reduces heat generation of the heat generating roller.

摘要翻译： 通过防止发生偏移来实现热发生辊，定影装置和图像形成装置，其中预热时间缩短，同时防止过高的温度升高和良好的定影性能。 在发热辊，定影设备和图像形成装置中，主要通过在层中铺设高导磁性导电层和非磁性导电层来形成发热辊。 当从电源（未示出）施加电压到励磁线圈并且AC电流流过其中时，在励磁线圈周围产生磁通并形成磁场。 由于发热辊具有高磁导率导电层和非磁性导电层，所以由发热辊和励磁线圈构成的系统的磁耦合在低温时发热良好，发热量高 滚筒加速。 当超过居里点时，皮肤深度变深并且皮肤电阻降低，这抑制了焦耳热的产生并且减少了发热辊的发热。

公开(公告)号：US07486923B2

公开(公告)日：2009-02-03

申请号：US11572521

申请日：2005-07-26

申请人： Masaru Imai ,  Noboru Katakabe ,  Youichi Nakamura ,  Naoto Matsuo ,  Tomoyuki Noguchi

发明人： Masaru Imai ,  Noboru Katakabe ,  Youichi Nakamura ,  Naoto Matsuo ,  Tomoyuki Noguchi

IPC分类号： G03G15/20

CPC分类号： G03G15/205

摘要： A heat generating roller, fixing equipment and an image forming apparatus in which warm-up time is shortened while preventing excessive temperature rise and good fixing performance is realized by preventing offset. The heat generating roller is formed principally by laying a high permeability conductive layer and a nonmagnetic conductive layer in layer. When a voltage is applied from a power supply to an exciting coil and an alternating current flow, magnetic flux is generated around the exciting coil and a magnetic field is formed. Magnetic coupling of a system including the heat generating roller and the exciting coil is advantageous at a low temperature and heat generation of the heat generating roller is accelerated. When the Curie point is exceeded, skin depth increases and skin resistance decreases, which suppresses generation of Joules heat and reduces heat generation of the heat generating roller.

摘要翻译： 通过防止偏移来实现热发生辊，定影设备和图像形成装置，其中预热时间缩短，同时防止过高的温度升高和良好的定影性能。 发热辊主要通过在层中铺设高导磁性导电层和非磁性导电层而形成。 当从电源向励磁线圈施加电压和交流电流时，在励磁线圈周围产生磁通并形成磁场。 包括发热辊和励磁线圈的系统的磁耦合在低温下是有利的，并且加热发热辊的发热。 当超过居里点时，皮肤深度增加并且皮肤阻力降低，这抑制焦耳发热并减少发热辊的发热。

公开(公告)号：US20090028617A1

公开(公告)日：2009-01-29

申请号：US11908535

申请日：2006-03-13

申请人： Noboru Katakabe ,  Naoto Matsuo ,  Satoru Miyanishi ,  Yasuyuki Hanada ,  Masaru Imai ,  Hideki Tatematsu ,  Shigemitsu Tani

发明人： Noboru Katakabe ,  Naoto Matsuo ,  Satoru Miyanishi ,  Yasuyuki Hanada ,  Masaru Imai ,  Hideki Tatematsu ,  Shigemitsu Tani

IPC分类号： G03G15/20 ,  G03G15/14

CPC分类号： G03G15/205 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2038

摘要： There is provided a fixing apparatus capable of reducing the warm-up time, improving the heating efficiency, and suppressing the temperature increase out of the sheet width by using a magnetic adjuster. In this apparatus, the Currie temperature Tc of the magnetic adjuster material heated by electromagnetic induction is set to 220 degrees C. or below and the fixation setting temperature of a heating member corresponding to the portion where a recording material passes during continuous sheet feed is set lower than a value than the temperature at which the relative magnetic permeability of the magnetic adjuster material begins to decrease. Thus, it is possible to obtain a large difference between the heating portion and the non-heating portion, to surely prevent excessive temperature increase of the portion out of the recording material width, to reduce the warm-up time, and improve the heating efficiency.

摘要翻译： 提供了一种定影装置，其能够通过使用磁调节器来减少预热时间，提高加热效率，并且抑制片材宽度的温度升高。 在该装置中，将通过电磁感应加热的磁调节材料的Currie温度Tc设定为220℃以下，并且设定与连续供纸期间记录材料通过的部分对应的加热部件的固定设定温度 低于磁调节材料的相对磁导率开始下降的温度的值。 因此，可以在加热部和非加热部之间获得较大的差异，可靠地防止部分超出记录材料宽度的温度升高，减少预热时间，提高加热效率 。

公开(公告)号：US20070122214A1

公开(公告)日：2007-05-31

申请号：US10576307

申请日：2004-10-05

申请人： Masahiro Samei ,  Noboru Katakabe ,  Masaru Imai ,  Hideaki Yamada

发明人： Masahiro Samei ,  Noboru Katakabe ,  Masaru Imai ,  Hideaki Yamada

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2035

摘要： A fixing apparatus that enables the calorific value of a heat-producing rotating element to be stabilized and the heat production efficiency of that heat-producing rotating element to be improved. A fixing apparatus (200) is equipped with a heat-producing sleeve (210), an induction heating apparatus (230), a magnetic field absorption member (233) that absorbs a magnetic field generated by the induction heating apparatus (230), and a fixing roller (240) and pressure roller (250) that grip and rotate the heat-producing sleeve (210). The magnetic field absorption member (233) is located in an area opposite an exciting coil (231) with the heat-producing sleeve (210) between, and absorbs a magnetic field generated by the induction heating apparatus (230). The heat-producing sleeve (210) is composed of a nonmagnetic metallic material of thickness in the range from 10 μm to 500 μm and specific resistance of 80×10−6 Ωcm or less.

摘要翻译： 使得能够使发热旋转元件的发热量稳定并且提高该发热旋转元件的发热效率的定影装置。 定影装置（200）配备有吸收感应加热装置（230）产生的磁场的发热套（210），感应加热装置（230），磁场吸收部件（233），以及 固定辊（240）和夹紧并旋转发热套筒（210）的加压辊（250）。 磁场吸收部件233位于与发热套筒210相对的激励线圈231的区域内，吸收由感应加热装置230产生的磁场。 发热套（210）由厚度在10〜500μm之间的非磁性金属材料构成，电阻率为80×10 -6Ω以下。

公开(公告)号：US07006781B2

公开(公告)日：2006-02-28

申请号：US10469267

申请日：2002-11-08

申请人： Masaru Imai ,  Masakazu Mizusaki ,  Masaaki Nakano ,  Syuuiti Watanabe ,  Keisuke Fujimoto ,  Masaomi Inoue

发明人： Masaru Imai ,  Masakazu Mizusaki ,  Masaaki Nakano ,  Syuuiti Watanabe ,  Keisuke Fujimoto ,  Masaomi Inoue

IPC分类号： G03G15/20

CPC分类号： H05B6/145 ,  G03G15/2053 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2032

摘要： A heating roller (21) includes a heat generating layer (22) that generates heat by electromagnetic induction, a heat insulating layer (23), and a supporting layer (24), which are provided inwardly in this order. The heat generating layer (22) is composed of at least two layers that are a first heat generating layer of a magnetic material and a second heat generating layer of a non-magnetic material. The first heat generating layer has a specific resistance higher than a specific resistance of the second heat generating layer and a thickness larger than a thickness of the second heat generating layer. This allows the second heat generating layer to function effectively as a heat generating part that generates heat by electromagnetic induction. Thus, compared with the case where the heat generating layer (22) is formed only of a single layer of a magnetic material, heat generation efficiency is increased, thereby allowing warm-up time to be reduced. Further, the heat generating layer (22) is heated intensively, so that heat generation of the supporting layer (24) is reduced, thereby allowing the prevention of breakage of, for example, bearings supporting the heating roller (21).

摘要翻译： 加热辊（21）包括通过电磁感应产生热量的发热层（22），隔热层（23）和支撑层（24），这些按顺序向内设置。 发热层（22）由作为磁性材料的第一发热层和非磁性材料的第二发热层的至少两层构成。 第一发热层的电阻率高于第二发热层的比电阻，其厚度大于第二发热层的厚度。 这允许第二发热层作为通过电磁感应产生热量的发热部件而有效地起作用。 因此，与仅由单层磁性材料形成发热层（22）的情况相比，发热效率提高，从而能够减少预热时间。 此外，发热层（22）被强烈地加热，使得支撑层（24）的发热减少，从而防止例如支撑加热辊（21）的轴承断裂。