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81. 发明专利

JP2014059332A 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：JP2014059332A
公开(公告)日：2014-04-03
申请号：JP2012202620
申请日：2012-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI YOSHINORI , SEKI TAKAYUKI , ARAI YUJI , IKEFUCHI YUTAKA , TAMAKI SHUNTARO , SAITO KAZUYA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of reducing time required to return a shield member to an initial position.SOLUTION: A fixing device comprises: a rotatable fixing member; a heat source that heats the fixing member with radiation heat; an opposing member that comes into contact with the outer peripheral surface of the fixing member to form a nip part; and a shield member 27 that shields the heat from the heat source. The shield member 27 is configured to be movable between a preset initial position and a position different from the initial position according to a width size of a recording medium passing through the nip part, and includes initial position detection means 54 and 55 for detecting the initial position of the shield member 27.
摘要翻译：要解决的问题：提供一种能够减少将屏蔽构件返回到初始位置所需的时间的定影装置。解决方案：一种定影装置包括：可旋转的固定构件; 用辐射热加热固定部件的热源; 与所述固定构件的外周面接触以形成夹持部的相对构件; 以及屏蔽构件27，其遮蔽来自热源的热量。屏蔽构件27被构造成可以根据通过夹持部的记录介质的宽度尺寸在预设的初始位置和与初始位置不同的位置之间移动，并且包括用于检测初始位置的初始位置检测装置54和55 屏蔽部件27的位置。

82. 发明专利

JP2013011659A 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：JP2013011659A
公开(公告)日：2013-01-17
申请号：JP2011142857
申请日：2011-06-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To improve durability of a pressing member and rotary members, while preventing such a situation that a temporal sliding resistance increases between the inner peripheral surface of the rotary member and the outer peripheral surface of the pressing member that presses, from the inside of one of the two rotary members forming a fixing nip, the one rotary member towards the other rotary member.SOLUTION: The fixing device includes: two rotary members coming into contact with each other, a heating member being attached to at least one of the rotary members; a pressing member that is disposed on an inner peripheral area of one of the rotary members and presses the rotary member to the other rotary member; and a low-friction sliding friction member that is disposed on the outer peripheral surface of the pressing member. The sliding friction member is rotationally turned along with the pressing member, and a film strength of an innermost layer that is positioned in the inner peripheral surface of the rotary member in which the pressing member is disposed is set larger than the surface strength of the sliding friction member.
摘要翻译：要解决的问题：为了提高按压部件和旋转部件的耐久性，同时防止在旋转部件的内周面与按压部件的外周面之间的时间滑动阻力增加的情况，从形成定影夹持部的两个旋转部件中的一个的内侧向一个旋转部件转动。解决方案：定影装置包括：彼此接触的两个旋转构件，加热构件，附接到至少一个旋转构件; 压紧构件，其设置在所述旋转构件之一的内周区域上并将所述旋转构件按压到所述另一旋转构件; 以及设置在按压部件的外周面上的低摩擦滑动摩擦部件。滑动摩擦构件与按压构件一起旋转地旋转，并且位于设置有按压构件的旋转构件的内周面中的最内层的膜强度被设定为大于滑动面的表面强度摩擦件。版权所有（C）2013，JPO＆INPIT

83. 发明专利

JP2012155256A Sheet pressure device, fixing device, transfer device, and image forming apparatus 审中-公开
标题翻译：片材压力装置，固定装置，转印装置和图像形成装置
公开(公告)号：JP2012155256A
公开(公告)日：2012-08-16
申请号：JP2011016244
申请日：2011-01-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20 , G03G15/00 , G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To improve the degree of freedom in material selection of a friction-resistance reduction sheet 77, while improving the maintainability of the friction-resistance reduction sheet 77.SOLUTION: By taking up a friction-resistance reduction sheet 77 from a winding roller 75 on a taking-up roller 76, the collection of the sheet from between a fixing belt 71 and a pressing pad 73, and the supply of the sheet to therebetween are automatically executed. Besides, before the taking-up of the friction-resistance reduction sheet 77 is executed by driving the taking-up roller 76, nip pressure for fixing is made to be reduced in such a manner that the pressing force pad 73 is made to be moved in the direction of keeping away from a pressure roller 79. Thus, the reduction of a tensile force imparted to the friction-resistance reduction sheet 77 in taking-up enables improvement of the degree of freedom in the sheet material selection.
摘要翻译：要解决的问题：提高摩擦阻力降低片77的材料选择的自由度，同时提高耐摩擦阻力片77的可维护性。解决方案：通过卷取摩擦阻力降低片77，电阻降低片77从卷取辊76上的卷绕辊75，从定影带71和按压垫73之间收集片材，并且片材的供给自动地进行。此外，在通过驱动卷取辊76执行摩擦阻力降低片77的卷取之前，使得固定用的夹持压力减小，使得压力垫73被移动在远离加压辊79的方向上。因此，在卷取时赋予摩擦阻力降低片77的张力的降低能够提高片材选择的自由度。版权所有（C）2012，JPO＆INPIT

84. 发明专利

JP2011191535A 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：JP2011191535A
公开(公告)日：2011-09-29
申请号：JP2010057723
申请日：2010-03-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of reducing the generation of curling of a recording paper passing through a fixing nip portion, while maintaining the beginning performance of a pressure member and to provide an image forming apparatus provided with the fixing device. SOLUTION: The fixing device 30 provided with a fixing roller 1 and a pressure roller 2 includes an internal pressure heater 31 and an external pressure heater 32 and a pressure member temperature controller 420 performs control for switching the operation of the internal pressure heater 31 and the operation of the external pressure heater 32, according to the state of the fixing device 30. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少通过定影夹持部的记录纸的卷曲的产生的定影装置，同时保持压力构件的开始性能，并且提供一种图像形成装置，固定装置。解决方案：设有定影辊1和加压辊2的定影装置30包括内压加热器31和外压加热器32，压力构件温度控制器420执行用于切换内压加热器的操作的控制根据固定装置30的状态，外部压力加热器32的操作。（C）2011，JPO＆INPIT

85. 发明专利

JP2011175223A 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：JP2011175223A
公开(公告)日：2011-09-08
申请号：JP2010071687
申请日：2010-03-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20 , G03G21/00
CPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus, in which sliding resistance between a belt member, such as a fixing belt and a pressurizing belt, and a stationary member sliding on the belt member can be stably reduced even in the lapse of time. SOLUTION: The fixing device includes: the stationary member 22, which comes into press-contact with a pressing rotary body 31 via the fixing belt 21 to form a nip part; and a low friction member 25 interposed between the fixing belt 21 and the stationary member 22 to reduce the frictional resistance of both of the members 21 and 22. Then, the low friction member 25 is moved by a moving means 26 so that the portion nipped between the fixing belt 21 and the stationary member 22 are exchanged. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种定影装置和图像形成装置，其中诸如定影带和加压带之类的带构件和在带构件上滑动的静止构件之间的滑动阻力可以稳定地即使在时间的流逝也减少了。解决方案：固定装置包括：固定构件22，其经由定影带21与按压旋转体31压接，以形成压合部; 以及插入在定影带21和固定构件22之间的低摩擦构件25，以减小两个构件21和22的摩擦阻力。然后，低摩擦构件25由移动装置26移动，使得夹持的部分在定影带21和固定构件22之间进行交换。版权所有（C）2011，JPO＆INPIT

86. 发明专利

JP2009048075A 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：JP2009048075A
公开(公告)日：2009-03-05
申请号：JP2007215910
申请日：2007-08-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To efficiently correct temperature unevenness in the axial direction of a fixing roller forming a fixing nip by a simple structure in a fixing device, wherein paper carrying an unfixed toner image is pressed and heated in the fixing nip for fixing the toner image to the paper.
SOLUTION: A heat conduction member 4, wherein heat insulation parts 42 are arranged at both ends of a heat conduction part 41 formed to have a length substantially equal to that of the axial direction of the fixing roller 1 forming the fixing nip N, is arranged in parallel to the fixing roller 1 so that the fixing roller 1 and the heat conduction part 41 are aligned mutually. When heat transfer is carried out between the fixing roller 1 having a built-in heater 6 and the heat conduction part 41, the axial directional temperature unevenness of the fixing roller is corrected. The heat insulation parts 42 arranged at the both ends of the heat conduction part 41 prevent heat radiation from the both ends of the heat conduction member 4 to an atmosphere, and consequently. heat transfer between the fixing roller 1 and the heat conduction part 41 can be carried out effectively without loss.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过在定影装置中的简单结构有效地校正形成定影辊隙的定影辊的轴向温度不均匀性，其中承载未定影调色剂图像的纸在定影辊隙中被加压并加热将墨粉图像固定到纸张上。解决方案：导热构件4，其中绝热部件42布置在导热部分41的两端，导热部分41形成为具有与形成定影辊隙N的定影辊1的轴向方向的长度基本相等的长度与定影辊1平行设置，使得定影辊1和导热部分41相互对准。当在具有内置加热器6的定影辊1和导热部分41之间进行热传递时，校正定影辊的轴向温度不均匀性。布置在导热部41的两端的隔热部42防止从导热部件4的两端向大气的热辐射，因此。定影辊1和导热部41之间的热传递可以有效地进行而不会损失。版权所有（C）2009，JPO＆INPIT

87. 发明专利

JP2007127900A 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：JP2007127900A
公开(公告)日：2007-05-24
申请号：JP2005321576
申请日：2005-11-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI TAKAYUKI
IPC分类号： G03G15/20 , F16C13/00 , F28D15/02
摘要： PROBLEM TO BE SOLVED: To provide a fixing device capable of preventing the movement of heat to an atmosphere (vicinity of a fixing roller and a pressure roller) while assuming that a heat transfer member is arranged in contact with a part of the surface of the fixing roller.
SOLUTION: In the fixing device where the heat transfer member 11 of a long-shaft roller type is arranged to be brought into contact with the surface of the fixing roller 1 in parallel, the heat transfer member 11 is constituted by arranging a high heat conductivity material 13 and a low heat conductivity material 14 alternately in a periphery direction on the outer periphery of a heat insulating layer 12 made of resin.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够防止热量移动到大气（定影辊和加压辊附近）的定影装置，同时假设传热构件布置成与部分定影辊的表面。解决方案：在长轴辊型传热构件11被布置成与定影辊1的表面平行地接触的定影装置中，传热构件11通过布置高导热性材料13和低热传导性材料14在树脂制隔热层12的外周沿周向交替。版权所有（C）2007，JPO＆INPIT

88. 发明专利

JP2006227495A 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：JP2006227495A
公开(公告)日：2006-08-31
申请号：JP2005043963
申请日：2005-02-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI YOSHINORI , TAKAGI HIROTADA , NAGAFUJI HIDEO , KIKUCHI TOSHIYUKI , OKAMOTO JUN , OKAMOTO MASAMI , SEKI TAKAYUKI
IPC分类号： G03G15/20 , H05B3/00 , H05B3/20
摘要： PROBLEM TO BE SOLVED: To keep a gap between a fixing roller and a surface heater constant.
SOLUTION: In the fixing device where a heat source incorporated in a roller is the surface heater which is easily deformed and constituted by arranging a resistor in a resin sheet, an end cap (46) supporting the end area of the surface heater (30) formed to be cylindrical through a bearing (45) supports the end area of the roller (21) incorporating the surface heater coaxially with the surface heater.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：保持定影辊和表面加热器之间的间隙恒定。解决方案：在固定装置中，结合在辊中的热源是容易变形并通过在树脂片中布置电阻器而构成的表面加热器，端盖（46）支撑表面加热器的端部区域（30）通过轴承（45）形成为圆柱形，支撑包括与表面加热器同轴的表面加热器的辊（21）的端部区域。版权所有（C）2006，JPO＆NCIPI

89. 发明专利

JP2005165349A Heating rotor device and fixing device 有权
标题翻译：加热转子装置和固定装置
公开(公告)号：JP2005165349A
公开(公告)日：2005-06-23
申请号：JP2005004381
申请日：2005-01-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： EBARA MASANAO , HINOKIGAYA TOSHIAKI , YOKOYAMA HIROSHI , NAKAI JUNJI , SATO MASAHIKO , SEKI TAKAYUKI , KONO YUZO , YASUDA KEIZO
IPC分类号： G03G15/20 , F16C13/00 , H05B6/02 , H05B6/10 , H05B6/14
摘要： PROBLEM TO BE SOLVED: To prevent a waste of energy due to heat generation of a support part by making a heating part of a rotor having the heating part effectively generate heat and effectively preventing the support part of the rotor from heating up. SOLUTION: A heating rotor device, used for a fixing device which heats a recording material carrying an unfixed toner image to fix the toner image, has the rotor 11 having the heat generation part and an induction coil 14B provided in the rotor 11, and is configured to make the heat generation part generate heat with an induction current generated at the heat generation part of the rotor 11 by supplying a high-frequency current to the induction coil 14B; and the induction coil 14B is wound around a core 14A fixed to a support shaft 14D on which the rotor 11 is rotatably supported and a support part 12 making the support shaft 14D support the rotor 11 rotatably is made of a nonmagnetic material. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止由于具有加热部的转子的加热部分而导致的支撑部件的发热引起的能量的浪费，有效地发热，并且有效地防止转子的支撑部分被加热。解决方案：用于加热携带未定影调色剂图像的记录材料以固定调色剂图像的定影装置的加热转子装置具有设置在转子11中的具有发热部分的转子11和感应线圈14B 并且被配置为通过向感应线圈14B提供高频电流，使得发热部分在转子11的发热部分产生的感应电流产生热量; 并且感应线圈14B缠绕在固定到支撑轴14D上的芯体14A上，转子11可旋转地支撑在该支撑轴14D上，并且使得支撑轴14D可旋转地支撑转子11的支撑部分12由非磁性材料制成。版权所有（C）2005，JPO＆NCIPI

90. 发明专利

JP2019003036A 定着装置および画像形成装置审中-公开
公开(公告)号：JP2019003036A
公开(公告)日：2019-01-10
申请号：JP2017117647
申请日：2017-06-15
申请人： RICOH CO LTD
发明人： ISHII KENJI , FUJIMOTO IPPEI , YOSHINAGA HIROSHI , SEKI TAKAYUKI , SAWADA KAZUNARI , MATSUDA RYOHEI
IPC分类号： G03G15/20
摘要：【課題】発熱体からの輻射熱を反射する反射部材を配置した定着装置において、潤滑剤から揮発する揮発成分に起因する反射部材の反射率の低下を抑制すること。【解決手段】定着装置は、回転可能に設けられた無端状の回転体と、回転体の外周面と接触する接触部材と、回転体の内側に配置され、回転体を介して接触部材と当接しニップ部を形成するニップ形成部材と、回転体の内側に配置された少なくとも一つの発熱体(第二ハロゲンヒータ50b)と、回転体の内側に配置され、発熱体からニップ形成部材に向けて放射される輻射熱を反射する反射部材40と、を備える。反射部材40は、発熱体と上方で対向する反射面40Fに、切り欠き孔を形成した切り欠き部82を設けた。【選択図】図5

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