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    • 3. 发明申请
    • IMAGE HEATING APPARATUS AND PRESSURE ROLLER USED FOR IMAGE HEATING APPARATUS
    • 用于图像加热装置的图像加热装置和压力滚子
    • US20110237413A1
    • 2011-09-29
    • US13154600
    • 2011-06-07
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • F28F5/02
    • G03G15/206G03G2215/2035
    • A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol. % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
    • 形成用于与加热构件接触以夹持和传送和加热记录材料的压区的压辊包括:芯金属和含有填料的弹性层,所述弹性层包含长度不小于0.05的导热填料的填料 mm且不大于1mm,并且在λf≥500W/(m·k)的范围内的长度方向的热导率λf分散在5体积%以上。 %且不大于40体积%,并且包含在垂直于记录材料输送方向的纵向方向上提供热导率λy的填料的弹性层为λy≥2.5W/(m·k),填料的ASKER-C硬度为 不超过60度,其中包括厚度方向上的热导率λ的固体橡胶弹性层不小于0.16W /(m·k)且不大于0.40W /(m·k),并且固体橡胶 在芯金属的外周形成弹性层,在固体橡胶弹性层的外周形成含有填料的弹性层。 结果,可以抑制记录材料不通过的区域中的温度升高的压力辊稳定输送性,提供高耐久性,提供高导热性和低硬度。
    • 7. 发明申请
    • IMAGE HEATING APPARATUS AND PRESSURE ROLLER USED FOR IMAGE HEATING APPARATUS
    • 用于图像加热装置的图像加热装置和压力滚子
    • US20090003902A1
    • 2009-01-01
    • US12145104
    • 2008-06-24
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • G03G15/20
    • G03G15/206G03G2215/2035
    • A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
    • 形成用于与加热构件接触以夹持和传送和加热记录材料的压区的压辊包括:芯金属和含有填料的弹性层,所述弹性层包含长度不小于0.05的导热填料的填料 mm且不大于1mm,并且在长度方向上的热导率羔羊在范围≥500W/(mk)的范围内分散在不少于5vol%且不大于40vol%的范围内,并且含有 在与记录材料传送方向垂直的纵向方向上提供热导率的填料的填料的平均长度= 2.5W /(mk)和填料的ASKER-C硬度不超过60度,其中具有热的固体橡胶弹性层 厚度方向的导电率λ不小于0.16W /(mk)且不大于0.40W /(mk),并且固体橡胶弹性层形成在 在固体橡胶弹性层的外周形成有芯金属和含有填料的弹性层。 结果,可以抑制记录材料不通过的区域中的温度升高的压力辊稳定输送性,提供高耐久性,提供高导热性和低硬度。
    • 10. 发明申请
    • Image fixing apparatus
    • 图像定影装置
    • US20060045589A1
    • 2006-03-02
    • US11213991
    • 2005-08-30
    • Atsushi IwasakiHiroaki SakaiAkira KatoTomoyuki MakihiraMasafumi Maeda
    • Atsushi IwasakiHiroaki SakaiAkira KatoTomoyuki MakihiraMasafumi Maeda
    • G03G15/20
    • G03G15/2042
    • The image fixing apparatus includes a heater having a heat generating resistor on a substrate, a heater holder for holding said heater, and a backup roller for forming a nip portion in cooperation with said heater, wherein said heater holder has, in a direction along a short side of said heater, a contact area facing said resistor forming area and coming into contact with said heater, and non-contact areas provided on both sides of the contact area and not coming into contact with said heater, and the contact area has a width equal to or larger than the resistor forming area. With this configuration, it is possible to provide the image fixing apparatus capable of restraining a stress applied to the heater and an image heating apparatus capable of restraining a rise in temperature of a sheet non-feeding portion.
    • 图像定影装置包括在基板上具有发热电阻器的加热器,用于保持加热器的加热器保持器和与所述加热器协作形成夹持部分的支承辊,其中所述加热器保持器沿着沿着 所述加热器的短边,面对所述电阻器形成区域并与所述加热器接触的接触区域和设置在接触区域两侧并且不与所述加热器接触的非接触区域,并且接触区域具有 宽度等于或大于电阻器形成区域。 利用这种结构,可以提供能够抑制施加于加热器的应力的图像定影装置和能够抑制片材非进给部分的温度上升的图像加热装置。