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    • 8. 发明申请
    • Image heating apparatus and heater for use therein
    • US20050163523A1
    • 2005-07-28
    • US11038066
    • 2005-01-21
    • Masahito OmataHisashi NakaharaYusuke NakazonoSatoshi NishidaEiji UekawaIsamu TakedaNoriyuki Ito
    • Masahito OmataHisashi NakaharaYusuke NakazonoSatoshi NishidaEiji UekawaIsamu TakedaNoriyuki Ito
    • G03G15/20H05B3/00H05B3/03H05B3/12
    • G03G15/2042H05B3/0095
    • The invention is to provide an image heating apparatus capable of preventing an excessive temperature increase in a sheet non-passing area and a heater for use in such apparatus, and the heater for use in the image heating apparatus of the invention is constructed by including: a substrate; a heat generating resistor formed on the substrate; and first and second electrodes for supplying an electric power to the heat generating resistor; wherein each of the first and second electrodes has a first area to be contacted with a power supplying connector and a second area provided at an end portion electrically opposite to the first area, the second areas are provided along a longitudinal direction of the substrate, and the heat generating resistor is so provided as to electrically connect the second area of the first electrode and the second area of the second electrode; wherein, within the second area of the first electrode, a portion electrically closest to the first area of the first electrode is provided in the vicinity of an end portion of the substrate in the longitudinal direction thereof, and within the second area of the second electrode, a portion electrically closest to the first area of the second electrode is provided in the vicinity of the other end portion of the substrate in the longitudinal direction thereof; and wherein, when the heater is at a set temperature for an image heating operation in the image heating apparatus, a resistance value Rc of the second area of either of the first and second electrodes and a resistance value Rt between a portion within the second area of the first electrode electrically closest to the first area of the first electrode and a portion within the second area of the second electrode electrically closest to the first area of the second electrode satisfy a relation: Rc/Rt≦1/30.
    • 9. 发明授权
    • Image heating apparatus and heater for use therein
    • 用于其中的图像加热装置和加热器
    • US07203438B2
    • 2007-04-10
    • US11038066
    • 2005-01-21
    • Masahito OmataHisashi NakaharaYusuke NakazonoSatoshi NishidaEiji UekawaIsamu TakedaNoriyuki Ito
    • Masahito OmataHisashi NakaharaYusuke NakazonoSatoshi NishidaEiji UekawaIsamu TakedaNoriyuki Ito
    • G03G15/20
    • G03G15/2042H05B3/0095
    • Image heating apparatus capable of preventing an excessive temperature increase in a sheet non-passing area and heater for use in the image heating apparatus including: a substrate, a heat generating resistor formed on the substrate, and first and second electrodes for supplying an electric power to the heat generating resistor. Each of the first and second electrodes has a first area to contact a power supplying connector and a second area provided at an end portion electrically opposite to the first area along a longitudinal direction of the substrate, and the heat generating resistor is provided to electrically connect the second area of the first and second electrode so that when the heater is at a set temperature for an image heating operation a resistance value Rc of the second area, and a resistance value Rt between a portion within the second area of the first and second electrode and electrically closest to the first area satisfy a relation Rc/Rt
    • 一种图像加热装置,其能够防止图像加热装置中使用的片材不通过区域和加热器的温度升高,包括:基板,形成在基板上的发热电阻器,以及用于提供电力的第一和第二电极 到发热电阻器。 第一电极和第二电极中的每一个具有接触供电连接器的第一区域和沿着基板的纵向方向设置在与第一区域电相对的端部处的第二区域,并且发热电阻器被设置为电连接 第一和第二电极的第二区域,使得当加热器处于图像加热操作的设定温度时,第二区域的电阻值Rc和第一和第二电极的第二区域内的部分之间的电阻值Rt 电极和最靠近第一区域的电极满足关系Rc / Rt <= 1/30。
    • 10. 发明授权
    • Image heating apparatus having flexible rotatable member
    • 图像加热装置具有柔性可旋转构件
    • US07027763B2
    • 2006-04-11
    • US10724634
    • 2003-12-02
    • Akira KatoNoriaki TanakaYusuke NakazonoHiroyuki Sakakibara
    • Akira KatoNoriaki TanakaYusuke NakazonoHiroyuki Sakakibara
    • G03G15/20
    • G03G15/2025
    • The image heating apparatus for heating an image formed on a recording material includes a heater, a supporting member for supporting the heater, a flexible rotatable member rotated while contacting with the heater, and a backup member contacting with the rotatable member. The recording material passes between the rotatable member and the backup member, and upstream of the heater of the supporting member with respect to the direction of movement of the recording material, there are provided a protruding portion protruding more toward the backup member side than the surface of contact between the heater and the rotatable member, and a groove portion provided between the protruding portion and the heater and depressed more than the surface of contact of the heater with the rotatable member, and a lubricant is contained in the groove portion. Thereby, the driving torque of the rotatable member can be suppressed.
    • 用于加热形成在记录材料上的图像的图像加热装置包括加热器,用于支撑加热器的支撑构件,与加热器接触的同时旋转的柔性可旋转构件以及与可旋转构件接触的支撑构件。 记录材料相对于记录材料的移动方向通过可旋转构件和支撑构件之间以及支撑构件的加热器的上游侧,设置有突出部分比表面更靠近支撑构件侧突出 所述加热器和所述可旋转构件之间的接触,以及设置在所述突出部分和所述加热器之间并且比所述加热器与所述可旋转构件的接触表面更多地凹陷的凹槽部分,并且所述凹槽部分中包含润滑剂。 由此,能够抑制旋转部件的驱动扭矩。