公开(公告)号：US20140079455A1

公开(公告)日：2014-03-20

申请号：US14024931

申请日：2013-09-12

申请人： Takayuki SEKI ,  Yuji ARAI ,  Yoshiki YAMAGUCHI ,  Shuntaroh TAMAKI ,  Yutaka IKEBUCHI ,  Kazuya SAITO ,  Naoki IWAYA ,  Toshihiko SHIMOKAWA

发明人： Takayuki SEKI ,  Yuji ARAI ,  Yoshiki YAMAGUCHI ,  Shuntaroh TAMAKI ,  Yutaka IKEBUCHI ,  Kazuya SAITO ,  Naoki IWAYA ,  Toshihiko SHIMOKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G15/2053 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A fixing device included in an image forming apparatus includes a fixing rotary body, a heater disposed opposite the fixing rotary body, an opposed body contacting an outer circumferential surface of the fixing rotary body, a reflector disposed opposite the heater, and a heat shield disposed between the heater and the fixing rotary body and includes a shield portion to shield heat radiated from the heater to the fixing rotary body. Heat reflectance of at least a surface of the shield portion where the heat shield faces the heater is set to a value smaller than heat reflectance on a surface of the reflector opposite and facing the heater. Also, heat absorptance of at least a surface of the shield portion where the heat shield faces the heater is set to a value greater than heat absorptance on a surface of the reflector opposite and facing the heater.

摘要翻译： 包括在图像形成装置中的定影装置包括定影旋转体，与定影旋转体相对设置的加热器，与定影旋转体的外周面接触的相对体，与加热器相对设置的反射器， 在加热器和固定旋转体之间，包括屏蔽部分，用于屏蔽从加热器辐射到定影旋转体的热量。 防热面对加热器的屏蔽部分的至少一个表面的热反射率被设定为小于反射器表面上与面对加热器相反的热反射率的值。 而且，隔热板面对加热器的屏蔽部分的至少一个表面的热吸收率被设定为大于反射器表面上与面对加热器相反的热吸收率的值。

公开(公告)号：US20150261157A1

公开(公告)日：2015-09-17

申请号：US14657656

申请日：2015-03-13

申请人： Motoyoshi YAMANO ,  Kohichi UTSUNOMIYA ,  Hiromasa TAKAGI ,  Kenji ISHII ,  Takayuki SEKI ,  Keitaro SHOJI ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI

发明人： Motoyoshi YAMANO ,  Kohichi UTSUNOMIYA ,  Hiromasa TAKAGI ,  Kenji ISHII ,  Takayuki SEKI ,  Keitaro SHOJI ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2028 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes: a fixing member that is rotatable and in an endless shape; a heat source that heats the fixing member; a nip forming member that is arranged inside the fixing member; and a pressurizing member that is pressurized to be in contact with the nip forming member through the fixing member, to form a fixing nip. The fixing device fixes an unfixed image on a recording medium by passing the recording medium that carries the unfixed image through the fixing nip. The nip forming member includes a base layer, and a high thermal-conductive layer that is arranged on a surface layer of the base layer on a fixing nip side, and that has higher thermal conductivity than the base layer, and in the high thermal-conductive layer, a low thermal-conductive portion is arranged near an end portion in an axial direction of the fixing member.

摘要翻译： 定影装置包括：可旋转且呈环状的固定构件; 加热固定部件的热源; 布置在固定部件内的辊隙形成部件; 以及加压部件，其经由所述固定部件加压而与所述辊隙形成部件接触，形成定影辊隙。 定影装置通过使携带未定影图像的记录介质通过定影辊隙将未定影图像固定在记录介质上。 辊隙形成构件包括基底层和布置在定影辊隙侧的基底层的表面层上并且具有比基底层更高的热导率的高导热层， 导电层，低导热部分设置在固定构件的轴向方向上的端部附近。

公开(公告)号：US20140079424A1

公开(公告)日：2014-03-20

申请号：US14010823

申请日：2013-08-27

申请人： Yutaka IKEBUCHI ,  Takayuki SEKI ,  Yuji ARAI ,  Yoshiki YAMAGUCHI ,  Shuntaroh TAMAKI ,  Kazuya SAITO

发明人： Yutaka IKEBUCHI ,  Takayuki SEKI ,  Yuji ARAI ,  Yoshiki YAMAGUCHI ,  Shuntaroh TAMAKI ,  Kazuya SAITO

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body, a heat shield movably disposed opposite the fixing rotary body, an opposed body contacting the fixing rotary body to form a nip therebetween through which a recording medium is conveyed, and a temperature detector to detect a temperature of at least one of the fixing rotary body and the opposed body. A controller, operatively connected to the heat shield and the temperature detector, determines a rotation angled position to which the heat shield is moved based on a size of the recording medium and the temperature of the at least one of the fixing rotary body and the opposed body detected by the temperature detector.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体相对移动地设置的隔热罩，与定影旋转体相接触的相对体，以在其间传送记录介质的辊隙;以及温度检测器， 固定旋转体和相对体中的至少一个。 可操作地连接到隔热罩和温度检测器的控制器基于记录介质的尺寸和固定旋转体和相对的至少一个的温度确定热屏蔽件移动到的旋转成角度的位置 身体由温度检测器检测。

公开(公告)号：US20150261155A1

公开(公告)日：2015-09-17

申请号：US14644903

申请日：2015-03-11

申请人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Kohichi UTSUNOMIYA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO ,  Kenji ISHII ,  Hiromasa TAKAGI ,  Keitaro SHOJI

发明人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Kohichi UTSUNOMIYA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO ,  Kenji ISHII ,  Hiromasa TAKAGI ,  Keitaro SHOJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes: a rotatable fixing member formed as an endless belt; a heat source to heat the fixing member; a nip-forming member being not rotatable and arranged inside the fixing member; and a pressure member arranged outside the fixing member and forming a nip between the pressure member and the fixing member. The nip-forming member is formed of a first heat transmission unit and a sliding sheet. The first heat transmission unit includes an abutting part abutting the fixing member with the sliding sheet therebetween, and a bent part or bent parts extending inside the fixing member at upstream or upstream and downstream of the nip in a transport direction of a recording medium. A retaining part to catch and retain the sliding sheet is provided at a tip of at least the bent part at upstream of the nip in the transport direction.

摘要翻译： 定影装置包括：形成为环形带的可旋转固定构件; 用于加热固定构件的热源; 夹持部件不能旋转并且布置在固定部件的内部; 以及压力构件，其布置在所述固定构件的外部并且在所述压力构件和所述固定构件之间形成辊隙。 夹持部件由第一传热单元和滑动片形成。 所述第一传热单元包括邻接所述固定部件与所述滑动片之间的抵接部，以及在所述辊隙的上游或下游以及所述夹持部的沿所述记录介质的输送方向延伸的所述固定部件内的弯曲部或弯曲部。 在运送方向的夹持部的上游，至少设有弯曲部的前端，设置有夹持并保持滑动片的保持部。

公开(公告)号：US20170131665A1

公开(公告)日：2017-05-11

申请号：US15295439

申请日：2016-10-17

申请人： Yuji ARAI ,  Hajime GOTOH ,  Takuya SESHITA ,  Takahiro IMADA

发明人： Yuji ARAI ,  Hajime GOTOH ,  Takuya SESHITA ,  Takahiro IMADA

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator unit. The fixing rotator unit includes a fixing rotator formed into a loop; a holder to hold an end in a longitudinal direction of the fixing rotator; a pressure rotator disposed opposite the fixing rotator to press against the fixing rotator; a pressure pad disposed inside the loop to receive pressure from the pressure rotator via the fixing rotator to form an area of contact between the fixing rotator and the pressure rotator; a stay to support the pressure pad against the pressure from the pressure rotator; and a positioner to secure the holder and to position the stay with one end of the stay projecting outwards from the positioner. The positioner has a limited moving distance in a thrust direction. The limited moving distance is shorter than a length of a part of the holder entering the loop.

公开(公告)号：US20160011548A1

公开(公告)日：2016-01-14

申请号：US14790297

申请日：2015-07-02

申请人： Kohichi UTSUNOMIYA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Qifeng CUI ,  Shohei SAITO ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

发明人： Kohichi UTSUNOMIYA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Qifeng CUI ,  Shohei SAITO ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/2035

摘要： A device includes a fixing belt, a holder that holds the fixing belt, a pressing member that comes in contact with the fixing belt, a nip-forming-member arranged inside the fixing belt, that forms a nip by coming in contact with the pressing member, a supporting member that supports the nip-forming-member, a side plate to which the nip-forming-member and the supporting member are fixed, and a pressing mechanism that presses a pressing roller to the nip-forming-member via the fixing belt. The supporting member includes at least two plates. The two plates are separated from each other near a contact portion where the plates come in contact with the nip-forming-member. At least a part of each of the plates is a flat surface parallel to a direction of a load applied by the pressing mechanism. Portions of the two plates on a side distant from the contact portion are joined together.

摘要翻译： 一种装置包括定影带，固定定影带的保持器，与定影带接触的按压构件，布置在定影带内部的夹持形成构件，其与压制件接触形成辊隙 构件，支撑夹持形成构件的支撑构件，夹持形成构件和支撑构件被固定的侧板;以及按压机构，其通过该夹持构件与压区成形构件 定影带 支撑构件包括至少两个板。 两个板在接触部分附近彼此分开，其中板与辊隙形成部件接触。 每个板的至少一部分是平行于由按压机构施加的负载方向的平坦表面。 两个板的远离接触部分的一部分接合在一起。

公开(公告)号：US20150261147A1

公开(公告)日：2015-09-17

申请号：US14657406

申请日：2015-03-13

申请人： Yuji ARAI ,  Hideo NAGAFUJI ,  Kohichi UTSUNOMIYA ,  Arinobu YOSHIURA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

发明人： Yuji ARAI ,  Hideo NAGAFUJI ,  Kohichi UTSUNOMIYA ,  Arinobu YOSHIURA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a fixing member configured to be revolvable while being heated by a heat source; a counter rotator configured to form a nip between the fixing member and the counter rotator by applying a pressure to the fixing member in a contact state with the fixing member; a shield member disposed inside the fixing member to partially shield heat from the heat source; and a holding member attached to an end of the fixing member. The shield member includes a spacer configured to define a clearance to allow the holding member to be inserted into the fixing member from an end of the fixing member, the clearance being between the shield member and an inner surface of the end of the fixing member.

摘要翻译： 定影装置包括：固定构件，被构造成在被热源加热的同时可旋转; 配置为通过在与所述固定构件接触的状态下对所述固定构件施加压力而在所述固定构件和所述反转子之间形成辊隙的反转器; 屏蔽构件，其设置在所述固定构件的内部，以部分地屏蔽来自所述热源的热量; 以及附接到所述固定构件的端部的保持构件。 屏蔽构件包括间隔件，其构造成限定间隙，以允许保持构件从固定构件的端部插入到固定构件中，间隙在屏蔽构件和固定构件的端部的内表面之间。

公开(公告)号：US20160011549A1

公开(公告)日：2016-01-14

申请号：US14792870

申请日：2015-07-07

申请人： Kohichi UTSUNOMIYA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Kiho SAI ,  Shohei SAITO ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

发明人： Kohichi UTSUNOMIYA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Arinobu YOSHIURA ,  Kiho SAI ,  Shohei SAITO ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes an endless fixing belt: a fixing belt holding member; a pressure member that makes a contact with the circumference of the fixing belt; a nip forming member that is disposed inside the fixing belt and forms a nip between the nip forming member and the pressure member; a nip supporting member that is made of a sheet metal; a side plate that supports the fixing belt holding member and the nip supporting member; and a pressure mechanism that presses the pressure member against the nip forming member with the fixing belt between the pressure member and the nip forming member. Both end surfaces of the nip supporting member are shear surfaces and one of the shear surfaces makes a contact with the nip forming member and the other shear surface is supported by the side plate.

摘要翻译： 固定装置包括环形定影带：定影带保持构件; 与所述定影带的圆周接触的压力构件; 辊隙形成构件，其设置在所述定影带的内部并在所述辊隙形成构件和所述压力构件之间形成辊隙; 由金属板制成的辊隙支撑构件; 支撑定影带保持构件和夹持支撑构件的侧板; 以及压力机构，其通过所述压力构件和所述辊隙形成构件之间的所述定影带将所述压力构件压靠在所述辊隙形成构件上。 夹持支撑构件的两个端面是剪切面，其中一个剪切面与夹持形成构件接触，另一个剪切面由侧板支撑。

公开(公告)号：US20160221775A1

公开(公告)日：2016-08-04

申请号：US15013272

申请日：2016-02-02

申请人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Kohichi UTSUNOMIYA ,  Kiho SAI ,  Shohei SAITO ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

发明人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Kohichi UTSUNOMIYA ,  Kiho SAI ,  Shohei SAITO ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO

IPC分类号： B65H5/36 ,  B65H5/06

CPC分类号： B65H5/062 ,  B65H5/38 ,  B65H29/52 ,  B65H2402/31 ,  B65H2404/611 ,  B65H2404/693 ,  B65H2601/11 ,  G03G15/2028 ,  G03G15/6529 ,  G03G15/6573 ,  G03G2215/00675 ,  G03G2215/00679

摘要： A paper conveying device includes a conveying guide, a bearing, a conveying-guide facing surface, and a separation restrictor. The conveying guide includes a conveyance surface for conveying paper and a pivot shaft and is swingable about the pivot shaft. The bearing includes a support surface facing at least an upper semiperimeter of the pivot shaft. The conveying-guide facing surface is provided to face an end of the conveying guide when the conveying guide swings. The end is opposite to the conveyance surface. The separation restrictor is provided to the conveying guide to restrict separation of the pivot shaft from the bearing at least in a given swing range of the conveying guide by contacting the conveying-guide facing surface.

摘要翻译： 纸张输送装置包括输送引导件，轴承，输送引导件对向表面和分离限制器。 输送引导件包括用于输送纸张和枢轴的输送表面，并且可围绕枢轴摆动。 所述轴承包括面向所述枢转轴的至少上半部半计的支撑表面。 当输送引导件摆动时，输送导向器面向表面设置成面对输送引导件的端部。 该端部与输送表面相对。 分离限制器被提供到输送引导件，以通过接触传送导向器面向表面至少在输送引导件的给定摆动范围内限制枢转轴与轴承的分离。

公开(公告)号：US20160062286A1

公开(公告)日：2016-03-03

申请号：US14836129

申请日：2015-08-26

申请人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Yutaka IKEBUCHI ,  Kohichi UTSUNOMIYA ,  Motoyoshi YAMANO ,  Kiho SAI ,  Shohei SAITO

发明人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Yutaka IKEBUCHI ,  Kohichi UTSUNOMIYA ,  Motoyoshi YAMANO ,  Kiho SAI ,  Shohei SAITO

IPC分类号： G03G15/20

CPC分类号： G03G15/2057 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes: a rotatable endless belt type fixing member; a pressurizing member that is opposed to the fixing member and rotates; and a nip forming member that is arranged inside the fixing member, and forms a nip part by contact with the pressurizing member through the fixing member. The nip forming member includes: a heat-uniformizing member having bent portions opposed to each other; a heat-insulating member arranged inside the heat-uniformizing member; a heat-absorbing member arranged on an upper surface of the heat-insulating member; and a sliding sheet that covers a nip side of the heat-uniformizing member, and is held between the bent portions of the heat-uniformizing member and the heat-insulating member. The heat-uniformizing member and the heat-insulating member are fastened to each other by fitting a fitting part formed on the heat-uniformizing member to a fitted part formed on the heat-insulating member.

摘要翻译： 定影装置包括：可旋转环形带型固定构件; 加压构件，其与所述固定构件相对旋转; 以及辊隙形成构件，其设置在固定构件的内部，并且通过所述固定构件与所述加压构件接触形成咬合部。 辊隙形成构件包括：具有彼此相对的弯曲部分的热均匀化构件; 布置在所述热均匀构件内部的绝热构件; 布置在绝热构件的上表面上的吸热构件; 以及覆盖所述热均匀化构件的辊隙侧并且被保持在所述热均匀化构件的弯曲部分和所述绝热构件之间的滑动片材。 通过将形成在热均匀化构件上的配合部件配合到形成在绝热构件上的配合部件，将热均匀化构件和隔热构件相互紧固。