专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JP2014240945A 定着装置及び画像形成装置有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014240945A
公开(公告)日：2014-12-25
申请号：JP2013192955
申请日：2013-09-18
申请人：株式会社リコー , Ricoh Co Ltd
发明人： ARAI YUJI , YOSHIKAWA MASAAKI , SEKI TAKAYUKI , YAMAMOTO TAKESHI , MINBU RYUICHI , IKEFUCHI YUTAKA , SESHIMO TAKUYA , TAMAKI SHUNTARO , GOTO SO , IMADA TAKAHIRO , SAITO KAZUYA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , YAMAJI KENSUKE , SUZUKI AKIRA , YOSHINAGA HIROSHI , HATTORI YOSHIO
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要：【課題】定着ベルトの非通紙領域に対する加熱源の輻射熱を遮蔽する遮蔽部材の支持部側の温度上昇を抑制する。【解決手段】回転可能な定着ベルト21と、ハロゲンヒータ23(加熱源)と、加圧ローラ22(対向部材)と、ニップ形成部材24と、ハロゲンヒータ23から定着ベルト21への輻射熱を遮蔽する遮蔽部材27とを備えた定着装置である。遮蔽部材27をハロゲンヒータ23の周りで回転可能に支持する。遮蔽部材27の支持部側となる両端部27dを低熱伝導率とし、当該支持部側よりも内側部分(遮蔽部27aの両端部27dを除く残りの部分と連結部27c)は高熱伝導率とする。必要に応じ連結部27cなどを高放射率にする。【選択図】図7A
摘要翻译：要解决的问题：为了抑制屏蔽部件的支撑部分侧的温度上升，将热源的辐射热屏蔽到定影带的非进纸区域。解决方案：定影装置包括可旋转定影带21，卤素加热器 23（热源），加压辊22（相对构件），夹持形成构件24和屏蔽构件27，其将辐射热从卤素加热器23屏蔽到定影带21.屏蔽构件27可旋转地支撑在卤素加热器23周围屏蔽部件27包括两个端部部分27d，它们是具有低导热性的支撑部分侧，并且支撑部分侧面内的部分（除了两个端部部分27d和连接部分27c之外的屏蔽部分27a的部分）具有高导热性。连接部27c在需要时具有高的辐射比。

52. 发明专利

JP2014222316A 定着装置及び画像形成装置有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014222316A
公开(公告)日：2014-11-27
申请号：JP2013102184
申请日：2013-05-14
申请人：株式会社リコー , Ricoh Co Ltd
发明人： ARAI YUJI , YOSHIKAWA MASAAKI , SEKI TAKAYUKI , YAMAMOTO TAKESHI , MINBU RYUICHI , IKEFUCHI YUTAKA , SESHIMO TAKUYA , TAMAKI SHUNTARO , GOTO SO , IMADA TAKAHIRO , SAITO KAZUYA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO , YAMAJI KENSUKE , SUZUKI AKIRA , YOSHINAGA HIROSHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要：【課題】定着ベルトの端部温度上昇だけでなく固定遮蔽部材の温度上昇も抑制することが可能な定着装置、及び当該定着装置を備えた画像形成装置を提供する。【解決手段】回転可能な定着ベルト21と、ハロゲンヒータ23(加熱源)と、加圧ローラ(対向部材)と、ニップ形成部材24と、ハロゲンヒータ23から定着ベルト21への輻射熱を遮蔽する可動遮蔽部材27とを備えた定着装置である。定着ベルト21の端部温度上昇を防止するため、第1遮蔽部27aと第2遮蔽部材27bを有する可動遮蔽部材27をハロゲンヒータ23の周りに回転可能に配設する。ハロゲンヒータ23の端部ヒータ23bの発熱部H2外端よりも幅方向外側に、固定遮蔽部材37を配設する。【選択図】図1A
摘要翻译：要解决的问题：提供一种除了定影带的端部的温度升高之外还可以抑制固定屏蔽构件的温度升高的定影装置以及包括定影装置的图像形成装置。解决方案：一种定影装置，包括可旋转的定影带21，卤素加热器23（加热源），加压辊（相对构件），辊隙形成构件24和将卤素加热器23的辐射热屏蔽到定影带21的可动遮挡构件27。第一屏蔽部分27a和第二屏蔽部分27b设置在卤素加热器23周围，以防止定影带21的端部温度升高。固定屏蔽部件37分别设置在外部边缘的宽度方向的外侧卤素加热器23的两端加热器23b的加热部分H2。

53. 发明专利

JP2014178607A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014178607A
公开(公告)日：2014-09-25
申请号：JP2013053777
申请日：2013-03-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , SEKI TAKAYUKI , ARAI YUJI , MINBU RYUICHI , YAMAGUCHI YOSHINORI , TAMAKI SHUNTARO , SHIMOKAWA TOSHIHIKO , YOSHINAGA HIROSHI , IKEFUCHI YUTAKA , YUASA SHUTARO
IPC分类号： G03G15/20 , G03G21/14
CPC分类号： G03G15/2017 , G03G15/2039 , G03G15/2042 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of suppressing unevenness in temperature of a fixing member at the start of heating by a heating source, even when the fixing device includes a shield member.SOLUTION: A fixing device 20 comprises: a rotatable fixing belt 21; a halogen heater 23 that heats the fixing belt with radiation heat; a pressure roller 22 that is brought into contact with an outer peripheral surface of the fixing belt to form a nip part N; and a shield member 27 that shield heat from the halogen heater. The fixing device moves the shield member 27 from an initial position in association with the start of image formation, and moves the shield member to the initial position in association with the completion of the image formation.
摘要翻译：要解决的问题：提供一种能够在加热开始时抑制定影部件的温度不均匀的固定装置，即使在定影装置包括屏蔽部件的情况下也是如此。解决方案：定影装置20包括：可旋转的定影带21; 用辐射热加热定影带的卤素加热器23; 压力辊22，其与定影带的外周面接触，形成压合部N; 以及屏蔽构件27，其屏蔽来自卤素加热器的热量。定影装置与图像形成开始相关联地将屏蔽构件27从初始位置移动，并且与图像形成完成相关联地将屏蔽构件移动到初始位置。

54. 发明专利

JP2014178596A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014178596A
公开(公告)日：2014-09-25
申请号：JP2013053686
申请日：2013-03-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHINAGA HIROSHI , SEKI TAKAYUKI , ARAI YUJI , IKEFUCHI YUTAKA , MINBU RYUICHI , YAMAGUCHI YOSHINORI , TAMAKI SHUNTARO , SAITO KAZUYA , YUASA SHUTARO , SHIMOKAWA TOSHIHIKO
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2042 , G03G15/2053 , G03G15/55 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of reducing damage received by a fixing member at the time of emergency stop of an image forming apparatus upon the occurrence of abnormality.SOLUTION: A fixing device 20 comprises: a rotatable fixing belt 21; a halogen heater 23 that heats the fixing belt with radiation heat; a pressure roller 22 that is brought into contact with an outer peripheral surface of the fixing belt to form a nip part N; and a shield member 27 that is made movable between the fixing member and the heat source to change the area of a heating target area α of the fixing belt 21 that is heated by the halogen heater 23. When an image forming apparatus stops in emergency upon the occurrence of abnormality such as paper jam, the fixing device controls the shield member 27 to stop at a position at the time of the occurrence of abnormality, and not to move to other places.
摘要翻译：要解决的问题：提供一种定影装置，其能够在发生异常时减少图像形成装置的紧急停止时减少由固定构件接收的损伤。解决方案：定影装置20包括：可旋转定影带21; 用辐射热加热定影带的卤素加热器23; 压力辊22，其与定影带的外周面接触，形成压合部N; 以及屏蔽部件27，其能够在固定部件和热源之间移动，以改变由卤素加热器23加热的定影带21的加热对象区域α的面积。当图像形成装置紧急停止时发生诸如卡纸的异常，定影装置控制屏蔽构件27停止在异常发生时的位置，并且不移动到其他位置。

55. 发明专利

JP2014178487A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014178487A
公开(公告)日：2014-09-25
申请号：JP2013052395
申请日：2013-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI YOSHINORI , SEKI TAKAYUKI , YOSHINAGA HIROSHI , ARAI YUJI , IWATANI NAOKI , IKEFUCHI YUTAKA , TAMAKI SHUNTARO , SAITO KAZUYA , SHIMOKAWA TOSHIHIKO , YUASA SHUTARO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device in which the top end of a separation conveyance guide can be positioned to a pressure roller with high accuracy, while holding the separation conveyance guide in a rotatable manner, with a simple configuration.SOLUTION: The fixing device includes an endless belt having flexibility and a pressure roller 21 facing and pressing the fixing belt, to form a nip. The fixing device includes a separation conveyance guide 41 comprising a plurality of components. The separation conveyance guide 41 includes a separation conveyance guide body 42 held by the pin 43 of the fixing device and a separation conveyance guide top end 44 which is held by the separation conveyance guide body 42 and movable with respect to the separation conveyance guide body 42 and whose position is determined by contact with the pressure roller 21, and which can be opened and closed around the pin 43 together with the separation conveyance guide body 42.
摘要翻译：要解决的问题：为了提供一种固定装置，其中分离输送引导件的顶端可以以可以以可旋转的方式保持分离输送引导件以高精度定位在压力辊上。结构简单：定影装置包括具有柔性的环形带和面向并按压定影带的加压辊21，以形成辊隙。定影装置包括包括多个部件的分离输送引导件41。分离输送引导件41包括由定影装置的销43保持的分离输送引导体42和由分离输送引导体42保持并相对于分离输送引导体42移动的分离输送引导件顶端44 并且其位置通过与加压辊21接触而确定，并且可以与分离输送引导体42一起围绕销43打开和关闭。

56. 发明专利

JP2014170137A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014170137A
公开(公告)日：2014-09-18
申请号：JP2013042393
申请日：2013-03-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHINAGA HIROSHI , SEKI TAKAYUKI , ARAI YUJI , MINBU RYUICHI , IKEFUCHI YUTAKA , YAMAGUCHI YOSHINORI , TAMAKI SHUNTARO , SAITO KAZUYA , YUASA SHUTARO , SHIMOKAWA TOSHIHIKO
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and a fixing device capable of suppressing deflection and twist of a nip forming member that can occur at the start of rotation of a fixing belt.SOLUTION: A fixing device includes a fixing belt, a pressure roller that rotationally drives while pressing an outer peripheral surface of the fixing belt to cause the fixing belt to be driven to rotate, a nip forming member that is arranged on an inner peripheral side of the fixing belt and is brought into contact with the pressure roller with the fixing belt therebetween to form a nip part, a support member that is arranged on the inner peripheral side of the fixing belt to support the nip forming member, and heating means for heating the fixing belt. The support member includes at least a parallel part that supports the nip forming member and is parallel to a paper conveyance direction at a nip part, and a rising part that rises from the parallel part in a direction separated from the nip part; and the rising part is parallel to a virtual straight line connecting a rotation center of the fixing belt and an entrance of the nip part, or is inclined with respect to the parallel part within a rotation angle range in which the virtual straight line is rotated ±15° with the rotation center as a fulcrum.
摘要翻译：要解决的问题：提供一种能够抑制在定影带的旋转开始时可能发生的夹持形成构件的偏转和扭曲的图像形成装置和定影装置。解决方案：定影装置包括定影带，压力辊，其在按压定影带的外周面的同时旋转驱动以使定影带被驱动旋转;辊隙形成构件，其布置在定影带的内周侧并与压力接触辊之间具有定影带以形成咬合部，布置在定影带的内周侧以支撑辊隙形成部件的支撑部件，以及用于加热定影带的加热装置。所述支撑构件至少包括支撑所述辊隙形成构件的平行部分，并且在夹持部分处平行于纸张输送方向，并且在与所述夹持部分分离的方向上从所述平行部分上升的上升部分; 并且上升部分平行于连接定影带的旋转中心和夹持部的入口的虚拟直线，或者在虚拟直线旋转±的旋转角度范围内相对于平行部倾斜 15°以旋转中心为支点。

57. 发明专利

JP2014074884A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014074884A
公开(公告)日：2014-04-24
申请号：JP2013092560
申请日：2013-04-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKEFUCHI YUTAKA , SEKI TAKAYUKI , ARAI YUJI , YAMAGUCHI YOSHINORI , TAMAKI SHUNTARO , SAITO KAZUYA
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2042 , G03G15/2053 , G03G2215/2035
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of surely preventing an excessive temperature rise in an area where no paper sheet passes of a fixing belt.SOLUTION: The fixing device comprises: a shielding member 27 which is provided rotatably around a halogen heater 23 (a heat source) and shields heat from the halogen heater 23 to a fixing belt 21 (a fixing member); and a controller to control a rotation angle of the shielding member 27. The shielding member 27 comprises: a shielding part 48 provided in an area covering a part of the halogen heater 23 in the axial direction; and an opening part 50 provided adjacently to one side of the shielding part 48 in the axial direction. The shielding part 48 extends along the inner peripheral surface of the fixing belt 21 and is formed to have ends in the circumferential direction. The controller determines the rotation angle of the shielding member 27 on the basis of paper sheet size and temperature of the fixing belt 21 or a pressure roller 22.
摘要翻译：要解决的问题：提供一种固定装置，其能够可靠地防止在没有纸张通过定影带的区域中的过度的温度升高。解决方案：固定装置包括：屏蔽构件27，其围绕卤素加热器可旋转地设置 23（热源）并且将来自卤素加热器23的热屏蔽到定影带21（固定构件）; 以及控制器，用于控制屏蔽构件27的旋转角度。屏蔽构件27包括：屏蔽部分48，设置在覆盖卤素加热器23的一部分的轴向方向上的区域; 以及开口部50，其相对于屏蔽部48的轴向的一侧设置。遮蔽部48沿着定影带21的内周面延伸，并且形成为具有圆周方向的端部。控制器基于定影带21或压力辊22的纸张尺寸和温度来确定屏蔽构件27的旋转角度。

58. 发明专利

JP2014059358A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014059358A
公开(公告)日：2014-04-03
申请号：JP2012202965
申请日：2012-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IKEBUCHI YUTAKA , SEKI TAKAYUKI , ARAI YUJI , YAMAGUCHI YOSHINORI , TAMAKI TOSHITARO , SAITO KAZUYA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus having good productivity and durability, and manufactured at a low cost.SOLUTION: A fixing device includes a fixing member 111, a heat source 112 that is provided inside the fixing member to heat the fixing member from the inside, and a pressure member 110 that presses the fixing member to form a nip part. The fixing device further includes a shield member 120 that extends in a main scanning direction between the heat source and the fixing member; the shield member includes at least one opening; an opening width of the opening corresponds to a sheet width of a recording medium; and the edge of the shield member forming the opening width is formed in a shape to prevent diffraction of light.
摘要翻译：要解决的问题：提供一种具有良好的生产率和耐久性的定影装置和图像形成装置，并且以低成本制造。解决方案：固定装置包括固定构件111，设置在固定构件内部的热源112 从内部加热固定构件，以及压紧构件110，其按压固定构件以形成咬合部。定影装置还包括屏蔽构件120，其在主扫描方向上在热源和固定构件之间延伸; 所述屏蔽构件包括至少一个开口; 开口的开口宽度对应于记录介质的纸张宽度; 并且形成开口宽度的屏蔽构件的边缘形成为防止光的衍射的形状。

59. 发明专利

JP2014056204A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014056204A
公开(公告)日：2014-03-27
申请号：JP2012202303
申请日：2012-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO KAZUYA , SEKI TAKAYUKI , ARAI YUJI , YAMAGUCHI YOSHINORI , IKEFUCHI YUTAKA , TAMAKI SHUNTARO
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To prevent excessive temperature rise in a non-paper feed area of a fixing belt.SOLUTION: A fixing device comprises: a shield member 27 that is provided rotatably around a halogen heater 23 (heat source) to shield heat from the halogen heater 23 to a fixing belt 21 (fixing member); temperature sensors 28a and 28b (temperature measuring means) for measuring a temperature of the fixing belt 21 or a pressure roller 22 (opposite member); and a control unit that controls the rotation angle of the shield member 27. The control unit controls the rotation angle of the shield member 27 on the basis of the temperature measured by the temperature sensors 28a and 28b.
摘要翻译：要解决的问题：防止定影带的非进纸区域中过度的温度上升。解决方案：一种定影装置包括：屏蔽件27，其围绕卤素加热器23（热源）可旋转地设置，以将热量从卤素加热器23到定影带21（固定部件）; 用于测量定影带21或加压辊22（相对构件）的温度的温度传感器28a和28b（温度测量装置）; 以及控制单元，其控制屏蔽构件27的旋转角度。控制单元基于由温度传感器28a和28b测量的温度来控制屏蔽构件27的旋转角度。

60. 发明专利

JP2014056203A Fixing device and image forming apparatus 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2014056203A
公开(公告)日：2014-03-27
申请号：JP2012202302
申请日：2012-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ARAI YUJI , SEKI TAKAYUKI , YAMAGUCHI YOSHINORI , TAMAKI SHUNTARO , IKEFUCHI YUTAKA , SAITO KAZUYA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To prevent excessive temperature rise in a non-paper feed area of a fixing belt without providing a large number of heat sources.SOLUTION: A fixing device comprises: a rotatable fixing belt 21; a halogen heater 23 (heat source); a pressure roller 22 (opposite member); a nip forming member 24; and a shield member 27 that shields radiation heat from the halogen heater 23 to the fixing belt 21. The shield member 27 can be rotated around the halogen heater 23, and includes a shield part 48 provided in an area covering a part in an axial direction of the halogen heater 23, and an opening 50 provided adjacent in an axial direction to the shield part 48.
摘要翻译：要解决的问题：为了防止在不提供大量热源的情况下定影带的非进纸区域中过度的温度升高。解决方案：一种定影装置包括：可旋转定影带21; 卤素加热器23（热源）; 压力辊22（相对构件）; 辊隙形成构件24; 以及将卤素加热器23的辐射热屏蔽到定影带21的屏蔽部件27.遮光部件27可以围绕卤素加热器23旋转，并且包括设置在覆盖轴向部分的区域的屏蔽部48 的卤素加热器23，以及沿着轴向相对于屏蔽部48设置的开口50。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式