公开(公告)号：US07953361B2

公开(公告)日：2011-05-31

申请号：US11857783

申请日：2007-09-19

申请人： Shigeru Obata ,  Yoshihiro Fukuhata ,  Masahiro Yagi ,  Toshio Ogiso

发明人： Shigeru Obata ,  Yoshihiro Fukuhata ,  Masahiro Yagi ,  Toshio Ogiso

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009

摘要： The fixing device includes a fixing unit, a pressure unit that comes into pressure-contact with the fixing unit to form a nip, and control guides. The fixing unit includes a heat roller. The pressure unit includes a pressure belt, and a pressure pad. The pressure pad is attached to a holder and pressed by a spring through a stay, thereby bringing the pressure belt into pressure-contact with the heat roller. The control guides on both sides of the pressure pad control deformation of the pressure pad in an axial direction of the heat roller to make a nip shape uniform.

摘要翻译： 定影装置包括固定单元，与定影单元压力接触以形成压区的压力单元和控制引导件。 定影单元包括加热辊。 压力单元包括压力带和压力垫。 压力垫连接到支架上并通过弹簧通过支撑件按压，从而使压力带与加热辊压力接触。 压力垫两侧的控制引导件控制加压辊沿加热辊的轴向的变形，使压区形状均匀。

公开(公告)号：US07885591B2

公开(公告)日：2011-02-08

申请号：US11685946

申请日：2007-03-14

申请人： Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shigeru Obata

发明人： Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shigeru Obata

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009

摘要： A low-heat loss, belt nip-type fixing device achieves good recording medium separation performance without increasing the size of the device, prevents image misalignment, and achieves a high-quality image without placing a major burden on the recording medium. This fixing device comprises a heat-fixing roller having an elastic layer and a heat source; and a pressurizing unit having an elastic member with a flat surface for pressing an endless member. The endless member conveys a recording medium, against the elastic layer. A pressurizing spring biases the elastic member toward the side of the recording medium. Biasing is carried out using the pressurizing spring such that the amount of deformation of the elastic member approaches the saturation region (maximum amount of deformation) inside a region of a nip portion, which is formed between the elastic layer of the heat-fixing roller and the endless member of pressurizing unit, and through which is passed a recording medium carrying an unfixed toner image.

摘要翻译： 低热损失的带夹式固定装置在不增加装置的尺寸，防止图像未对准的情况下实现良好的记录介质分离性能，并且在不对记录介质造成重大负担的情况下实现高质量的图像。 该固定装置包括具有弹性层和热源的热定影辊; 以及具有用于按压环形构件的具有平坦表面的弹性构件的加压单元。 环形构件将记录介质传送到弹性层。 加压弹簧将弹性构件朝向记录介质的侧面偏压。 使用加压弹簧进行偏压，使得弹性构件的变形量接近形成在热定影辊的弹性层和热定影辊的弹性层之间的夹持部的区域内的饱和区域（最大变形量） 加压单元的环形构件，并通过其承载未定影调色剂图像的记录介质。

公开(公告)号：US07664447B2

公开(公告)日：2010-02-16

申请号：US11832869

申请日：2007-08-02

申请人： Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shigeru Obata

发明人： Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shigeru Obata

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing device includes a fixing member of which surface is deformable, a heating unit that heats the fixing member, a pressurizing unit having an endless member and a pressurizing member. The pressurizing member includes an elastic layer and presses the endless member against the fixing member to bring the endless member into pressure contact with the fixing member. The elastic layer has an apparent hardness (ASKER-C) which is larger than that at a point where an apparent hardness starts to change rapidly with respect to a rubber thickness in a load application direction.

摘要翻译： 固定装置包括表面可变形的固定构件，加热固定构件的加热单元，具有环形构件和加压构件的加压单元。 加压构件包括弹性层并将环形构件压靠在固定构件上，以使环形构件与固定构件压力接触。 弹性层的表观硬度（ASKER-C）大于表观硬度相对于载荷施加方向上的橡胶厚度开始急剧变化的程度。

公开(公告)号：US20080013992A1

公开(公告)日：2008-01-17

申请号：US11770959

申请日：2007-06-29

申请人： Yoshihiro Fukuhata ,  Masahiro Yagi ,  Shigeru Obata

发明人： Yoshihiro Fukuhata ,  Masahiro Yagi ,  Shigeru Obata

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009 ,  G03G2215/2038

摘要： A pressurizing unit includes an elastic member that has an entering portion on a side from where a recording medium enters a nip portion, an exit portion on a side from where the recording medium exits the nip portion, and a center portion between the entering portion and the exit portion. The elastic modulus of the center portion is higher than elastic moduli of the entering portion and the exit portion.

摘要翻译： 加压单元包括弹性构件，该弹性构件在记录介质进入夹持部的一侧具有入口部分，在记录介质离开夹持部的一侧的出口部分，以及入口部分和 出口部分。 中心部分的弹性模量高于进入部分和出口部分的弹性模量。

公开(公告)号：US07831186B2

公开(公告)日：2010-11-09

申请号：US11776989

申请日：2007-07-12

申请人： Shigeru Obata ,  Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shin Yamamoto ,  Toshio Ogiso

发明人： Shigeru Obata ,  Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shin Yamamoto ,  Toshio Ogiso

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009 ,  G03G2215/2038

摘要： A pressurizing member includes an elastic member having a uniform elastic modulus of K=EA/t, where E is a Young's modulus, A is an area of the nip portion, and t is a thickness of the elastic member in the direction of application of load. A supporting member that supports the pressurizing member has an entering portion, an exit portion, and a center portion between the entering portion and the exit portion. The thickness of the center portion in a direction of application of load is larger than thicknesses of the entering portion and the exit portion in the direction of application of load so that the supporting unit has a convex portion.

摘要翻译： 加压构件包括具有均匀弹性模量K = EA / t的弹性构件，其中E是杨氏模量，A是夹持部分的面积，t是弹性构件在施加方向上的厚度 加载。 支撑加压构件的支撑构件在进入部分和出口部分之间具有进入部分，出口部分和中心部分。 中心部分在施加负载方向上的厚度大于进入部分和出口部分在施加负载方向上的厚度，使得支撑单元具有凸起部分。

公开(公告)号：US20080069611A1

公开(公告)日：2008-03-20

申请号：US11857783

申请日：2007-09-19

申请人： Shigeru OBATA ,  Yoshihiro Fukuhata ,  Masahiro Yagi ,  Toshio Ogiso

发明人： Shigeru OBATA ,  Yoshihiro Fukuhata ,  Masahiro Yagi ,  Toshio Ogiso

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009

摘要： The fixing device includes a fixing unit, a pressure unit that comes into pressure-contact with the fixing unit to form a nip, and control guides. The fixing unit includes a heat roller. The pressure unit includes a pressure belt, and a pressure pad. The pressure pad is attached to a holder and pressed by a spring through a stay, thereby bringing the pressure belt into pressure-contact with the heat roller. The control guides on both sides of the pressure pad control deformation of the pressure pad in an axial direction of the heat roller to make a nip shape uniform.

摘要翻译： 定影装置包括固定单元，与定影单元压力接触以形成压区的压力单元和控制引导件。 定影单元包括加热辊。 压力单元包括压力带和压力垫。 压力垫连接到支架上并通过弹簧通过支撑件按压，从而使压力带与加热辊压力接触。 压力垫两侧的控制引导件控制加压辊沿加热辊的轴向的变形，使压区形状均匀。

公开(公告)号：US20080013993A1

公开(公告)日：2008-01-17

申请号：US11776989

申请日：2007-07-12

申请人： Shigeru OBATA ,  Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shin Yamamoto ,  Toshio Ogiso

发明人： Shigeru OBATA ,  Masahiro Yagi ,  Yoshihiro Fukuhata ,  Shin Yamamoto ,  Toshio Ogiso

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009 ,  G03G2215/2038

摘要： A pressurizing member includes an elastic member having a uniform elastic modulus of K=EA/t, where E is a Young's modulus, A is an area of the nip portion, and t is a thickness of the elastic member in the direction of application of load. A supporting member that supports the pressurizing member has an entering portion, an exit portion, and a center portion between the entering portion and the exit portion. The thickness of the center portion in a direction of application of load is larger than thicknesses of the entering portion and the exit portion in the direction of application of load so that the supporting unit has a convex portion.

摘要翻译： 加压构件包括具有均匀弹性模量K = EA / t的弹性构件，其中E是杨氏模量，A是夹持部分的面积，t是弹性构件在施加方向上的厚度 加载。 支撑加压构件的支撑构件在进入部分和出口部分之间具有进入部分，出口部分和中心部分。 中心部分在施加负载方向上的厚度大于进入部分和出口部分在施加负载方向上的厚度，使得支撑单元具有凸起部分。

公开(公告)号：US07813686B2

公开(公告)日：2010-10-12

申请号：US11846917

申请日：2007-08-29

申请人： Masahiro Yagi ,  Yoshihiro Fukuhata

发明人： Masahiro Yagi ,  Yoshihiro Fukuhata

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A roller member includes a cylindrical core bar. The roller member is rotatably supported at both ends, and forms a nip, to which a recording medium is conveyed, by making a contact with another member. The core bar satisfies 1.0≦ΔD/D1×100≦3.0, where D1 is an outer diameter of the core bar in millimeters and ΔD is an outer diameter deformation value of a convey direction in millimeters.

摘要翻译： 辊构件包括圆柱形芯棒。 辊构件在两端被可旋转地支撑，并且通过与另一构件接触而形成传送记录介质的辊隙。 芯棒满足1.0＆nlE;＆Dgr; D / D1×100＆nlE; 3.0，其中D1是芯棒的外径，以毫米为单位，Dgr; D是输送方向的外径变形值，单位为毫米。

公开(公告)号：US20080063442A1

公开(公告)日：2008-03-13

申请号：US11846917

申请日：2007-08-29

申请人： Masahiro Yagi ,  Yoshihiro Fukuhata

发明人： Masahiro Yagi ,  Yoshihiro Fukuhata

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A roller member includes a cylindrical core bar. The roller member is rotatably supported at both ends, and forms a nip, to which a recording medium is conveyed, by making a contact with another member. The core bar satisfies 1.0≦ΔD/D1×100≦3.0, where D1 is an outer diameter of the core bar in millimeters and ΔD is an outer diameter deformation volume of a convey direction in millimeters.

摘要翻译： 辊构件包括圆柱形芯棒。 辊构件在两端被可旋转地支撑，并且通过与另一构件接触而形成传送记录介质的辊隙。 芯棒满足1.0 <= DeltaD / D1x100 <= 3.0，其中D1是芯棒的外径，单位为毫米，DeltaD为输送方向的外径变形体积（毫米）。

公开(公告)号：US07761044B2

公开(公告)日：2010-07-20

申请号：US11508273

申请日：2006-08-23

申请人： Masahiro Yagi ,  Toshio Ogiso ,  Shigeru Obata ,  Chikara Hiraoka ,  Toru Hanashima ,  Osamu Saito

发明人： Masahiro Yagi ,  Toshio Ogiso ,  Shigeru Obata ,  Chikara Hiraoka ,  Toru Hanashima ,  Osamu Saito

IPC分类号： G03G15/20

CPC分类号： G03G15/206 ,  G03G2215/2009 ,  G03G2215/2016 ,  G03G2215/2038

摘要： A ratio of a radius of curvature of a pressure applying member with an elastic layer, which pushes an endless belt wound around an endless heating member with pressure, in a transferring direction to a radius of curvature of an outer diameter of the heating roller is set to 1.1 or more.

摘要翻译： 将压力施加构件与弹性层的曲率半径的比率设定为沿着传送方向将缠绕在环形加热构件上的环形带材的环形带沿着加热辊的外径的曲率半径推压 至1.1以上。