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    • 2. 发明授权
    • Fixing device and image forming apparatus
    • 固定装置和成像装置
    • US08543045B2
    • 2013-09-24
    • US12961247
    • 2010-12-06
    • Kiichirou ArikawaShigeru WatanabeYasutaka GotohHiroko Furukata
    • Kiichirou ArikawaShigeru WatanabeYasutaka GotohHiroko Furukata
    • G03G15/20
    • G03G15/2032G03G15/206
    • A fixing device includes a rotatable fixing roller, an endless fixing belt, a pressing unit having first and second pressing members that press a surface of the fixing belt against the fixing roller, a fixed support member that supports the fixing roller rotatably, a movable support member that supports the first pressing member in a fixed state and supports the second pressing member such as to be movable closer to and away from the fixing roller, a first pressure spring that presses the movable support member closer to the fixing roller, a second pressure spring that presses the second pressing member closer to the fixing roller, and a switch mechanism that switches between a first state in which the first and second pressing members are pressed against the fixing roller and a second state in which only the second pressing member is pressed against the fixing roller.
    • 定影装置包括可旋转定影辊,环形定影带,具有将定影带的表面压靠在定影辊上的第一和第二按压部件的按压单元,可旋转地支撑定影辊的固定支撑构件,可移动支撑件 构件,其以固定状态支撑所述第一按压构件,并且支撑所述第二按压构件,使得能够靠近所述定影辊移动;第一压力弹簧,其将所述可动支撑构件压靠在所述定影辊上;第二压力 将第二按压部件按压到定影辊的弹簧,以及在第一和第二按压部件被压靠在定影辊上的第一状态和仅第二按压部件被按压的第二状态之间切换的开关机构 抵靠定影辊。
    • 3. 发明授权
    • Fixing device and image forming device
    • 固定装置和成像装置
    • US08417167B2
    • 2013-04-09
    • US12882799
    • 2010-09-15
    • Kiichirou ArikawaShigeru WatanabeYasutaka GotohHiroko Furukata
    • Kiichirou ArikawaShigeru WatanabeYasutaka GotohHiroko Furukata
    • G03G15/20
    • G03G15/2028G03G2215/00734
    • A fixing device includes: a fixing rotating member; a pressing rotating member pressed to the fixing surface of the fixing rotating member; a displacing mechanism that can displace the pressing rotating member at least at a first setting position that the pressing rotating member pressed to the fixing surface is located in a first position relative to the fixing rotating member and at a second setting position the pressing rotating member pressed to the fixing surface is in a second position shifted from the first position in the downstream or upstream side of a passing direction of the recording medium at the fixing process part; a guide member having a guide part that guides the recording medium to an introducing portion of the fixing process part; an adjusting mechanism that can adjust the position of the guide member in accordance with the displacement of the pressing rotating member to the first setting position or the second setting position.
    • 固定装置包括:固定旋转构件; 按压到所述固定旋转构件的固定表面的按压旋转构件; 移动机构,其能够至少在按压所述固定面的按压旋转构件位于相对于所述固定旋转构件的第一位置的第一设定位置移动所述按压旋转构件,并且在第二设定位置,所述按压旋转构件被按压 固定表面处于在定影处理部分处从记录介质的通过方向的下游或上游侧的第一位置移位的第二位置; 引导构件,具有将记录介质引导到定影处理部的引导部的引导部; 调节机构,其可以根据按压旋转构件相对于第一设定位置或第二设定位置的位移来调整引导构件的位置。
    • 4. 发明申请
    • FIXING DEVICE AND IMAGE FORMING DEVICE
    • 固定装置和图像形成装置
    • US20090226227A1
    • 2009-09-10
    • US12400242
    • 2009-03-09
    • Hiroko FurukataShigeru WatanabeKiichirou ArikawaYasutaka Gotoh
    • Hiroko FurukataShigeru WatanabeKiichirou ArikawaYasutaka Gotoh
    • G03G15/20
    • G03G15/206
    • A fixing device includes a heating rotating body that is heated by a heater and rotates, a pressurizing rotating body that is in contact with a surface portion of the heating rotating body and rotates, and that forms a fixing portion, a pressing mechanism that presses the pressurizing rotating body against the heating rotating body and that uses a plurality of springs disposed on both end portions of the pressurizing rotating body in a direction of the second rotation shaft, and a switching mechanism that switches between a first pressing state in which first combination of springs selected from among the plurality of springs are maintained and a second pressing state in which second combination of springs selected from among the plurality of springs except the first combination of the springs are maintained.
    • 定影装置包括:被加热器加热旋转的加热旋转体,与加热旋转体的表面部分接触并旋转的加压旋转体,形成固定部;按压机构, 对所述加热旋转体加压旋转体,并且使所述多个弹簧设置在所述加压旋转体的所述第二旋转轴的方向的两端部;以及切换机构,其在第一加压状态之间切换, 保持从多个弹簧中选择的弹簧,并且保持从弹簧的第一组合之外的多个弹簧中选择的弹簧的第二组合的第二按压状态。
    • 5. 发明申请
    • FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
    • 固定装置和图像形成装置,包括它们
    • US20090226211A1
    • 2009-09-10
    • US12243282
    • 2008-10-01
    • Yasutaka GotohKiichirou ArikawaShigeru WatanabeHiroko Furukata
    • Yasutaka GotohKiichirou ArikawaShigeru WatanabeHiroko Furukata
    • G03G15/20
    • G03G15/2032G03G2215/20
    • A fixing device including a heating member, a pressing member that presses the heating member, a switching unit that switches a press contact force of the pressing member and a container body that accommodates the heating member, the pressing member, and the switching unit, wherein the switching unit, includes a drive member that moves the pressing member in a predetermined direction and an auxiliary drive member that is connected to the drive member and relatively moves with the drive member, and the auxiliary drive member, in a case where the container body is placed in an image forming apparatus including a lid, switches between a operative association state and a nonoperative association state, and the auxiliary drive member including a returning section that returns a tip of the auxiliary drive member to a position crossing a movement trajectory of the lid in the nonoperative association state.
    • 一种定影装置,包括加热构件,按压加热构件的按压构件,切换按压构件的按压接触力的切换单元和容纳加热构件的容器本体,按压构件和切换单元, 切换单元包括沿预定方向移动按压构件的驱动构件和连接到驱动构件并与驱动构件相互移动的辅助驱动构件和辅助驱动构件,在容器主体 放置在包括盖的图像形成装置中,在操作关联状态和非操作关联状态之间切换,并且辅助驱动构件包括返回部分,该返回部分将辅助驱动部件的尖端返回到与所述辅助驱动部件的移动轨迹相交的位置 盖在不合作关联状态。
    • 6. 发明授权
    • Fixing device and image forming device
    • 固定装置和成像装置
    • US08086119B2
    • 2011-12-27
    • US12400242
    • 2009-03-09
    • Hiroko FurukataShigeru WatanabeKiichirou ArikawaYasutaka Gotoh
    • Hiroko FurukataShigeru WatanabeKiichirou ArikawaYasutaka Gotoh
    • G03G15/20
    • G03G15/206
    • A fixing device includes a heating rotating body that is heated by a heater and rotates, a pressurizing rotating body that is in contact with a surface portion of the heating rotating body and rotates, and that forms a fixing portion, a pressing mechanism that presses the pressurizing rotating body against the heating rotating body and that uses a plurality of springs disposed on both end portions of the pressurizing rotating body in a direction of the second rotation shaft, and a switching mechanism that switches between a first pressing state in which first combination of springs selected from among the plurality of springs are maintained and a second pressing state in which second combination of springs selected from among the plurality of springs except the first combination of the springs are maintained.
    • 定影装置包括:被加热器加热旋转的加热旋转体,与加热旋转体的表面部分接触并旋转的加压旋转体,形成固定部;按压机构, 对所述加热旋转体加压旋转体,并且使所述多个弹簧设置在所述加压旋转体的所述第二旋转轴的方向的两端部;以及切换机构,其在第一加压状态之间切换, 保持从多个弹簧中选择的弹簧,并且保持从弹簧的第一组合之外的多个弹簧中选择的弹簧的第二组合的第二按压状态。
    • 7. 发明授权
    • Fixing device and image forming apparatus including the same
    • 固定装置及包括该固定装置的图像形成装置
    • US08107856B2
    • 2012-01-31
    • US12243282
    • 2008-10-01
    • Yasutaka GotohKiichirou ArikawaShigeru WatanabeHiroko Furukata
    • Yasutaka GotohKiichirou ArikawaShigeru WatanabeHiroko Furukata
    • G03G15/16G03G21/00
    • G03G15/2032G03G2215/20
    • A fixing device including a heating member, a pressing member that presses the heating member, a switching unit that switches a press contact force of the pressing member and a container body that accommodates the heating member, the pressing member, and the switching unit, wherein the switching unit, includes a drive member that moves the pressing member in a predetermined direction and an auxiliary drive member that is connected to the drive member and relatively moves with the drive member, and the auxiliary drive member, in a case where the container body is placed in an image forming apparatus including a lid, switches between a operative association state and a nonoperative association state, and the auxiliary drive member including a returning section that returns a tip of the auxiliary drive member to a position crossing a movement trajectory of the lid in the nonoperative association state.
    • 一种定影装置,包括加热构件,按压加热构件的按压构件,切换按压构件的按压接触力的切换单元和容纳加热构件的容器主体,按压构件和切换单元, 切换单元包括沿预定方向移动按压构件的驱动构件和连接到驱动构件并与驱动构件相互移动的辅助驱动构件和辅助驱动构件,在容器主体 放置在包括盖的图像形成装置中,在操作关联状态和非操作关联状态之间切换,并且辅助驱动构件包括返回部分,该返回部分将辅助驱动部件的尖端返回到与所述辅助驱动部件的移动轨迹相交的位置 盖在不合作关联状态。
    • 8. 发明授权
    • Pressure-applying member, fixing device, and image forming apparatus
    • 加压构件,定影装置和图像形成装置
    • US08712302B2
    • 2014-04-29
    • US13298074
    • 2011-11-16
    • Tahei NakamuraKoji OkabeYuki KubotaYasutaka GotohHiroko Furukata
    • Tahei NakamuraKoji OkabeYuki KubotaYasutaka GotohHiroko Furukata
    • G03G15/20
    • G03G15/206
    • A fixing device includes a rotatable heating member including a heat source and a pressure-applying member pressed against the heating member. The pressure-applying member includes a band-shaped member that extends in a width direction of a medium that passes through a fixing area, a support member opposed to the heating member with the band-shaped member disposed therebetween, and a pressing member including a base-end portion supported by the support member and a free-end portion that extends toward the fixing area. The pressing member has urging portions arranged with intervals therebetween in the width direction. The urging portions are elastically deformable in accordance with a thickness of the medium when the medium passes through the fixing area. The free-end portion urges the band-shaped member toward the heating member so that the band-shaped member is pressed against the heating member.
    • 定影装置包括可旋转加热构件,该加热构件包括热源和压靠加热构件的加压构件。 压力施加构件包括沿着通过固定区域的介质的宽度方向延伸的带状构件,与加热构件相对的支撑构件,带状构件设置在其间;以及按压构件, 由支撑构件支撑的基端部分和朝向固定区域延伸的自由端部分。 按压构件具有沿宽度方向间隔设置的推压部。 当介质通过固定区域时,推动部分可以根据介质的厚度而弹性变形。 自由端部将带状构件推向加热构件,使得带状构件被压靠在加热构件上。
    • 10. 发明授权
    • Fixing device and image forming apparatus
    • 固定装置和成像装置
    • US08862040B2
    • 2014-10-14
    • US13552942
    • 2012-07-19
    • Koji OkabeYasutaka GotohYuki KubotaTakayuki Ryu
    • Koji OkabeYasutaka GotohYuki KubotaTakayuki Ryu
    • G03G15/20
    • G03G15/2053G03G2215/2035G03G2215/2061G03G2215/2064
    • A fixing device includes a fixing member that is rotatable and heated by a heater; an endless belt member that is rotatable while being in contact with the fixing member; and a pressing member that is disposed inside of the belt member. The pressing member presses the fixing member with the belt member therebetween so as to form a fixing nip between the fixing member and the belt member, the fixing nip allowing a recording medium to pass therethrough to fix a toner image onto the recording medium. In an output region of the fixing nip from which the recording medium is output from the fixing nip, a curvature of a cross-sectional shape of an end portion of the belt member in a width direction is larger than a curvature of a cross-sectional shape of a middle portion of the belt member in the width direction.
    • 固定装置包括可由加热器旋转和加热的固定构件; 环状带构件,其能够在与所述固定构件接触的状态下旋转; 以及设置在所述带构件内部的按压构件。 按压构件将固定构件压在固定构件之间,以在固定构件和带构件之间形成定影夹持部,定影夹持部使记录介质通过以将调色剂图像定影到记录介质上。 在从定影辊隙输出记录介质的定影辊隙的输出区域中,带部件的宽度方向的端部的截面形状的曲率大于横截面的曲率 带状部件的宽度方向的中央部的形状。