公开(公告)号：US08364051B2

公开(公告)日：2013-01-29

申请号：US12659648

申请日：2010-03-16

申请人： Kohta Sakaya ,  Yoshihiro Fukuhta ,  Tamotsu Ikeda

发明人： Kohta Sakaya ,  Yoshihiro Fukuhta ,  Tamotsu Ikeda

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G2215/2058

摘要： A fixing device includes a cylindrical fixing member, having an external circumferential surface including a crown portion curved radially outward and a inverted-crown portion curved radially inward, a pressing unit including a convexity and a concavity formed on a facing surface facing the fixing member, a first heating member to heat the fixing member, corresponding to the crown portion of the fixing member, a second heating member to heat the fixing member, corresponding to the inverted-crown portion of the fixing member, a temperature detector to detect a surface temperature of the fixing member, and a controller to control the first heating member and the second heating member independently. The pressing unit presses against the fixing member while the crown portion and the inverted-crown portion of the fixing member match the concavity and the convexity of the pressing unit, respectively, forming a curved fixing nip therebetween.

摘要翻译： 定影装置包括圆柱形固定构件，其具有外周面，该外周面包括径向向外弯曲的冠部部分和径向向内弯曲的倒置冠状部分，包括形成在面向固定构件的面对面上的凸部和凹部的按压单元， 第一加热构件，其对应于固定构件的冠部加热固定构件;第二加热构件，用于加热与定影构件的倒置冠部相对应的固定构件;温度检测器，用于检测表面温度 和控制器，用于独立地控制第一加热件和第二加热件。 按压单元按压固定构件，同时固定构件的冠部和倒立冠部分别与按压单元的凹凸相匹配，从而在它们之间形成弯曲的定影辊隙。

公开(公告)号：US20100239297A1

公开(公告)日：2010-09-23

申请号：US12659648

申请日：2010-03-16

申请人： Kohta Sakaya ,  Yoshihiro Fukuhta ,  Tamotsu Ikeda

发明人： Kohta Sakaya ,  Yoshihiro Fukuhta ,  Tamotsu Ikeda

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G2215/2058

摘要： A fixing device includes a cylindrical fixing member, having an external circumferential surface including a crown portion curved radially outward and a inverted-crown portion curved radially inward, a pressing unit including a convexity and a concavity formed on a facing surface facing the fixing member, a first heating member to heat the fixing member, corresponding to the crown portion of the fixing member, a second heating member to heat the fixing member, corresponding to the inverted-crown portion of the fixing member, a temperature detector to detect a surface temperature of the fixing member, and a controller to control the first heating member and the second heating member independently. The pressing unit presses against the fixing member while the crown portion and the inverted-crown portion of the fixing member match the concavity and the convexity of the pressing unit, respectively, forming a curved fixing nip therebetween.

摘要翻译： 定影装置包括圆柱形固定构件，其具有外周面，该外周面包括径向向外弯曲的冠部部分和径向向内弯曲的倒置冠状部分，包括形成在面向固定构件的面对面上的凸部和凹部的按压单元， 第一加热构件，其对应于固定构件的冠部加热固定构件;第二加热构件，用于加热与定影构件的倒置冠部相对应的固定构件;温度检测器，用于检测表面温度 和控制器，用于独立地控制第一加热件和第二加热件。 按压单元按压固定构件，同时固定构件的冠部和倒立冠部分别与按压单元的凹凸相匹配，从而在它们之间形成弯曲的定影辊隙。

公开(公告)号：US08874021B2

公开(公告)日：2014-10-28

申请号：US13535931

申请日：2012-06-28

申请人： Kohta Sakaya ,  Yasuhide Ohkubo ,  Tamotsu Ikeda ,  Yoshiharu Takahashi ,  Chikara Hiraoka ,  Toshio Ogiso

发明人： Kohta Sakaya ,  Yasuhide Ohkubo ,  Tamotsu Ikeda ,  Yoshiharu Takahashi ,  Chikara Hiraoka ,  Toshio Ogiso

IPC分类号： G03G15/20 ,  B65H5/36 ,  B65H5/06

CPC分类号： G03G15/2028 ,  B65H5/062 ,  B65H5/36 ,  B65H2402/24 ,  B65H2511/212 ,  B65H2515/81 ,  B65H2220/01 ,  B65H2220/08 ,  B65H2220/11

摘要： A mechanism for guiding a recording medium into a nip formed between a first rotary member subjected to heating, and a second rotary member pressed against the first rotary member includes a guide member and a biasing member. The guide member is disposed upstream from the nip to guide the recording medium therealong. The biasing member is connected to the guide member to mechanically bias the guide member. The guide member is subjected to a constant biasing force from the biasing member and to a pressure force from the recording medium. The pressure force is opposite the biasing force and variable with a stiffness of the recording medium being guided. The guide member is movable to different operational positions depending on the biasing and pressure forces acting thereon.

摘要翻译： 用于将记录介质引导到形成在经受加热的第一旋转构件之间的辊隙中的机构和被压靠在第一旋转构件上的第二旋转构件包括引导构件和施力构件。 引导构件设置在辊隙的上游，以在其上引导记录介质。 偏置构件连接到引导构件以机械地偏置引导构件。 引导构件受到来自偏压构件的恒定的偏压力和来自记录介质的压力。 压力与偏压力相反，并且随着记录介质的刚度被引导而变化。 引导构件可以根据作用在其上的偏压和压力而移动到不同的操作位置。

公开(公告)号：US20130004214A1

公开(公告)日：2013-01-03

申请号：US13525971

申请日：2012-06-18

申请人： Kohta SAKAYA ,  Yoshiharu Takahashi ,  Tamotsu Ikeda ,  Chikara Hiraoka

发明人： Kohta SAKAYA ,  Yoshiharu Takahashi ,  Tamotsu Ikeda ,  Chikara Hiraoka

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G2215/0132

摘要： A guide device includes a fixing exit guide, a first rotary body, a second rotary body disposed downstream from the first rotary body in a recording medium conveyance direction and partially protruding from a guide face through a slot of the fixing exit guide to contact and support an image side of a recording medium conveyed over the second rotary body, and at least one guide rib mounted on the guide face of the fixing exit guide and extending substantially in the recording medium conveyance direction. The guide rib includes a contact face contacting the image side of the recording medium and a downstream end disposed downstream from the contact face in the recording medium conveyance direction to overlap the second rotary body in cross-section taken along a direction orthogonal to an axial direction of the second rotary body.

摘要翻译： 引导装置包括固定出口引导件，第一旋转体，第二旋转体，其在记录介质输送方向上设置在第一旋转体的下游，并且通过定影出口引导件的狭槽从引导面部分地突出以接触和支撑 在第二旋转体上传送的记录介质的图像侧，以及安装在固定出口引导件的引导面上且基本上沿着记录介质输送方向延伸的至少一个引导肋。 引导肋包括与记录介质的图像侧接触的接触面和设置在记录介质传送方向上的接触面的下游的下游端，以与第二旋转体沿与轴向正交的方向截取的横截面重叠 的第二旋转体。

公开(公告)号：US09116476B2

公开(公告)日：2015-08-25

申请号：US13338765

申请日：2011-12-28

申请人： Yoshiharu Takahashi ,  Chikara Hiraoka ,  Tamotsu Ikeda ,  Kohta Sakaya ,  Yoshihiro Kawakami

发明人： Yoshiharu Takahashi ,  Chikara Hiraoka ,  Tamotsu Ikeda ,  Kohta Sakaya ,  Yoshihiro Kawakami

IPC分类号： G03G15/20

CPC分类号： G03G15/2028

摘要： A fixing device, including a fixing member; an opposing member contacting the fixing member to form a fixing nip; plural separation assisting members; a contact direction biasing member contacting an end of the auxiliary separation members to the surface of the fixing member; a contact and release switching member switching contacting the end of the auxiliary separation members to the surface of the fixing member and releasing the end of the auxiliary separation members therefrom; a fixing exit guide member guiding a recording medium to a discharge direction and separated from the fixing member by the separation assisting member; a first rotating member near the auxiliary separation members downstream from an end thereof; and a second rotating member guiding a recording medium guided by the fixing exit guide member in the recording medium conveyance direction while rotating.

摘要翻译： 一种固定装置，包括固定构件; 与所述固定构件接触以形成定影辊隙的相对构件; 多个分离辅助构件; 接触方向偏压构件，其与所述辅助分离构件的端部接触所述固定构件的表面; 接触释放切换构件将辅助分离构件的端部接触到固定构件的表面并且从其中释放辅助分离构件的端部; 固定出口引导构件，其将记录介质引导到排出方向，并由所述分离辅助构件与所述固定构件分离; 在辅助分离构件的一端的下游附近的第一旋转构件; 以及第二旋转构件，其在旋转时引导由所述定影出口引导构件在所述记录介质输送方向上引导的记录介质。

公开(公告)号：US08699929B2

公开(公告)日：2014-04-15

申请号：US13525971

申请日：2012-06-18

申请人： Kohta Sakaya ,  Yoshiharu Takahashi ,  Tamotsu Ikeda ,  Chikara Hiraoka

发明人： Kohta Sakaya ,  Yoshiharu Takahashi ,  Tamotsu Ikeda ,  Chikara Hiraoka

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G2215/0132

摘要： A guide device includes a fixing exit guide, a first rotary body, a second rotary body disposed downstream from the first rotary body in a recording medium conveyance direction and partially protruding from a guide face through a slot of the fixing exit guide to contact and support an image side of a recording medium conveyed over the second rotary body, and at least one guide rib mounted on the guide face of the fixing exit guide and extending substantially in the recording medium conveyance direction. The guide rib includes a contact face contacting the image side of the recording medium and a downstream end disposed downstream from the contact face in the recording medium conveyance direction to overlap the second rotary body in cross-section taken along a direction orthogonal to an axial direction of the second rotary body.

摘要翻译： 引导装置包括固定出口引导件，第一旋转体，第二旋转体，其在记录介质输送方向上设置在第一旋转体的下游，并且通过定影出口引导件的狭槽从引导面部分地突出以接触和支撑 在第二旋转体上传送的记录介质的图像侧，以及安装在固定出口引导件的引导面上且基本上沿着记录介质输送方向延伸的至少一个引导肋。 引导肋包括与记录介质的图像侧接触的接触面和设置在记录介质输送方向上的接触面的下游侧的下游端，以与第二旋转体沿与轴向正交的方向截取的横截面重叠 的第二旋转体。

公开(公告)号：US08107864B2

公开(公告)日：2012-01-31

申请号：US12255763

申请日：2008-10-22

申请人： Osamu Saito ,  Shigeo Nanno ,  Tamotsu Ikeda ,  Kohta Sakaya

发明人： Osamu Saito ,  Shigeo Nanno ,  Tamotsu Ikeda ,  Kohta Sakaya

IPC分类号： G03G15/20 ,  G03G21/00

CPC分类号： G03G15/2028

摘要： A fixing device includes a fixing roller and a pressing roller that are in pressure contact with each other. A separating plate is placed opposite to the fixing roller with a certain gap in between them. Positioning portions are installed on the separating plate to be in contact with width-direction ends of the fixing roller for determining the gap. The positioning portions are arranged such that edges of contact portions of the positioning portions on the width-direction center side in contact with the fixing unit are positioned outside an image area and inside a paper-passing area for a recording medium of a maximum passing-capable size.

摘要翻译： 定影装置包括彼此压力接触的定影辊和加压辊。 分隔板与定影辊相对设置，在它们之间具有一定的间隙。 定位部分安装在分离板上以与定影辊的宽度方向端接触，用于确定间隙。 定位部分布置成使得与定影单元接触的宽度方向中心侧的定位部分的接触部分的边缘位于图像区域的外侧，并且位于最大通过的记录介质的纸张通过区域内部， 有能力的大小。

公开(公告)号：US08867942B2

公开(公告)日：2014-10-21

申请号：US13471935

申请日：2012-05-15

申请人： Tamotsu Ikeda ,  Kohta Sakaya ,  Yoshiharu Takahashi ,  Chikara Hiraoka

发明人： Tamotsu Ikeda ,  Kohta Sakaya ,  Yoshiharu Takahashi ,  Chikara Hiraoka

IPC分类号： G03G15/20

CPC分类号： G03G15/2089 ,  G03G15/2032 ,  G03G15/206

摘要： A fixing device includes a first opposed body and a second opposed body pressed against the first opposed body. A resilient member exerts a resilient bias to the second opposed body that presses the second opposed body against the first opposed body. A lever assembly is swingable to move the second opposed body against the resilient bias exerted by the resilient member between at least a reduced pressure position where the second opposed body presses against the first opposed body with reduced pressure therebetween and an enhanced pressure position where the second opposed body presses against the first opposed body with enhanced pressure therebetween. A resistance applier engages the lever assembly to exert drag on the lever assembly when the lever assembly moves the second opposed body from the reduced pressure position to the enhanced pressure position.

摘要翻译： 固定装置包括第一相对体和压靠第一相对体的第二相对体。 弹性构件向第二相对体施加弹性偏压，该第二相对体将第二相对体按压在第一相对体上。 杠杆组件可摆动以抵抗由弹性构件施加的弹性偏压，以在至少一个减压位置之间移动第二相对体，第二对置体在第二对置体之间以较小的压力压靠第一相对体，并且增强压力位置， 相对的身体在其间具有增强的压力抵靠第一相对体。 当杠杆组件将第二相对体从减压位置移动到增压压力位置时，阻力施加器接合杠杆组件以在杆组件上施加拖曳。

公开(公告)号：US08498560B2

公开(公告)日：2013-07-30

申请号：US12289831

申请日：2008-11-05

申请人： Kohta Sakaya ,  Shigeo Nanno ,  Tamotsu Ikeda

发明人： Kohta Sakaya ,  Shigeo Nanno ,  Tamotsu Ikeda

IPC分类号： G03G15/00 ,  B41J2/385 ,  H05B1/00 ,  F16H55/14

CPC分类号： G03G15/2053 ,  Y10T74/19907 ,  Y10T74/19944

摘要： A fixing device and an image forming apparatus using this, in which even if permanent warping is produced on a roller member that forms a fixing nip portion, no collision sound is produced due to the collision of gears, the fixing device including: two roller members that form a nip portion in which a recording medium is pressed by pressure means and transported; and a drive gear that engages with a shaft portion of one of the two roller members and transmits driving force to that roller member. A key is formed in the drive gear and a key groove having a gap opened therein is formed in the shaft portion, and when a rotation velocity of the roller member increases, transmission of driving force from the drive gear to the shaft portion is suspended and the drive gear slides on the shaft portion.

公开(公告)号：US20090129836A1

公开(公告)日：2009-05-21

申请号：US12289831

申请日：2008-11-05

申请人： Kohta Sakaya ,  Shigeo Nanno ,  Tamotsu Ikeda

发明人： Kohta Sakaya ,  Shigeo Nanno ,  Tamotsu Ikeda

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  Y10T74/19907 ,  Y10T74/19944

摘要： A fixing device and an image forming apparatus using this, in which even if permanent warping is produced on a roller member that forms a fixing nip portion, no collision sound is produced due to the collision of gears, the fixing device including: two roller members that form a nip portion in which a recording medium is pressed by pressure means and transported; and a drive gear that engages with a shaft portion of one of the two roller members and transmits driving force to that roller member. A key is formed in the drive gear and a key groove having a gap opened therein is formed in the shaft portion, and when a rotation velocity of the roller member increases, transmission of driving force from the drive gear to the shaft portion is suspended and the drive gear slides on the shaft portion.

摘要翻译： 使用这种固定装置和图像形成装置，即使在形成定影夹持部的辊构件上产生永久性翘曲，由于齿轮的碰撞也不会产生碰撞声，所以定影装置包括：两个辊构件 形成压辊部分，其中记录介质被压力装置按压并被运送; 以及驱动齿轮，其与两个辊构件中的一个的轴部接合并将驱动力传递到该辊构件。 在该驱动齿轮上形成有一个钥匙，并且在该轴部分上形成有一个带有间隙的钥匙槽，并且当滚子部件的旋转速度增加时，驱动齿轮向轴部的驱动力的传递被暂停， 驱动齿轮在轴部分上滑动。