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1. 发明授权

US10036987B2 Removable fixing device having a convex guide and image forming apparatus 有权
公开(公告)号：US10036987B2
公开(公告)日：2018-07-31
申请号：US15675827
申请日：2017-08-14
申请人： Shigeo Nanno , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
发明人： Shigeo Nanno , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2017 , G03G15/2032 , G03G15/2053 , G03G21/1685 , G03G2215/2035
摘要： A fixing device is removably installed inside an apparatus body including an apparatus guide. The fixing device includes a convex guide guided along the apparatus guide and a heater to heat a recording medium to fix a toner image on the recording medium. The heater includes a lateral end in a longitudinal direction of the heater. The lateral end is disposed inside the convex guide.

2. 发明申请

US20180107142A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180107142A1
公开(公告)日：2018-04-19
申请号：US15727792
申请日：2017-10-09
申请人： Masahiro SAMEI , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
发明人： Masahiro SAMEI , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2039 , G03G15/2053 , G03G15/206
摘要： A fixing device includes a fixing rotator including a primary portion and a secondary portion disposed outboard from the primary portion in an axial direction of the fixing rotator. A pressure rotator contacts the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A primary heater heats the primary portion of the fixing rotator. A secondary heater heats the secondary portion of the fixing rotator. A primary temperature detector is isolated from the fixing rotator and detects a temperature of the primary portion of the fixing rotator. A secondary temperature detector contacts the fixing rotator and detects a temperature of the secondary portion of the fixing rotator. The primary temperature detector has a thermal time constant that is smaller than a thermal time constant of the secondary temperature detector.

3. 发明授权

US10078300B2 Fixing device and image forming apparatus 有权
公开(公告)号：US10078300B2
公开(公告)日：2018-09-18
申请号：US15727792
申请日：2017-10-09
申请人： Masahiro Samei , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
发明人： Masahiro Samei , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2039 , G03G15/2053
摘要： A fixing device includes a fixing rotator including a primary portion and a secondary portion disposed outboard from the primary portion in an axial direction of the fixing rotator. A pressure rotator contacts the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A primary heater heats the primary portion of the fixing rotator. A secondary heater heats the secondary portion of the fixing rotator. A primary temperature detector is isolated from the fixing rotator and detects a temperature of the primary portion of the fixing rotator. A secondary temperature detector contacts the fixing rotator and detects a temperature of the secondary portion of the fixing rotator. The primary temperature detector has a thermal time constant that is smaller than a thermal time constant of the secondary temperature detector.

4. 发明申请

US20180067431A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180067431A1
公开(公告)日：2018-03-08
申请号：US15675827
申请日：2017-08-14
申请人： Shigeo NANNO , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
发明人： Shigeo NANNO , Toshio Ogiso , Masahiro Samei , Tamotsu Ikeda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2032 , G03G15/2053 , G03G2215/2035
摘要： A fixing device is removably installed inside an apparatus body including an apparatus guide. The fixing device includes a convex guide guided along the apparatus guide and a heater to heat a recording medium to fix a toner image on the recording medium. The heater includes a lateral end in a longitudinal direction of the heater. The lateral end is disposed inside the convex guide.

5. 发明授权

US08107864B2 Separating member, fixing device, and image forming apparatus 有权
标题翻译：分离构件，定影装置和成像装置
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。

6. 发明授权

US08498560B2 Fixing device and image forming apparatus using this fixing device 有权
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.

7. 发明申请

US20090129836A1 Fixing device and image forming apparatus using this fixing device 有权
标题翻译：使用该固定装置的固定装置和成像装置
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。

8. 发明申请

US20090110449A1 SEPARATING MEMBER, FIXING DEVICE, AND IMAGE FORMING APPARATUS 有权
标题翻译：分离会员，固定装置和图像形成装置
公开(公告)号：US20090110449A1
公开(公告)日：2009-04-30
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
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。

9. 发明授权

US09690242B2 Fixing device and image forming apparatus incorporating same 有权
公开(公告)号：US09690242B2
公开(公告)日：2017-06-27
申请号：US15192521
申请日：2016-06-24
申请人： Masahiro Samei , Tomohiko Fujii , Yoshihiro Fukuhata , Tamotsu Ikeda , Minoru Toyoda , Yoshiharu Takahashi , Daisuke Inoue
发明人： Masahiro Samei , Tomohiko Fujii , Yoshihiro Fukuhata , Tamotsu Ikeda , Minoru Toyoda , Yoshiharu Takahashi , Daisuke Inoue
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053 , G03G15/206 , G03G2215/2061 , G03G2215/2064
摘要： A fixing device includes a first rotary body, a second rotary body to contact the first rotary body, and a plain bearing that supports the first rotary body or the second rotary body. One rotary body of the first rotary body and the second rotary body has an outer diameter increasing, while the other rotary body has an outer diameter decreasing, in a curved line from an axial center portion to axial end portions of the first rotary body and the second rotary body at least between the first rotary body and the second rotary body. A recording medium passes between the first rotary body and the second rotary body with a circumferential component of a shear force generated between the first rotary body and the second rotary body by use of the plain bearing being in a range of from 15N to 25N.

10. 发明申请

US20170045850A1 FIXING DEVICE, FIXING METHOD, AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置，固定方法和图像形成装置
公开(公告)号：US20170045850A1
公开(公告)日：2017-02-16
申请号：US15223611
申请日：2016-07-29
申请人： Tomohiko FUJII , Masahiro Samei , Tamotsu Ikeda , Yoshihiro Fukuhata , Minoru Toyoda , Yoshiharu Takahashi , Daisuke Inoue
发明人： Tomohiko FUJII , Masahiro Samei , Tamotsu Ikeda , Yoshihiro Fukuhata , Minoru Toyoda , Yoshiharu Takahashi , Daisuke Inoue
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/206 , G03G2221/1657
摘要： A fixing device includes a drive roller, a driven roller driven to rotate by the drive roller, and a braking force applicator. The driven roller presses against the drive roller to form an area of contact between the drive roller and the driven roller, through which a recording medium bearing a toner image passes. The braking force applicator applies a braking force to the driven roller to generate a shear force between the drive roller and the driven roller. The shear force acting between the drive roller and the driven roller when the drive roller and the driven roller rotate is in a range of from 15N to 25N.
摘要翻译：定影装置包括驱动辊，被驱动辊驱动旋转的从动辊和制动力施加器。从动辊压靠驱动辊，以形成驱动辊和从动辊之间的接触区域，通过该区域承载调色剂图像的记录介质通过。制动力施加器对从动辊施加制动力，以在驱动辊和从动辊之间产生剪切力。当驱动辊和从动辊旋转时作用在驱动辊和从动辊之间的剪切力在15N至25N的范围内。

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