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1. 发明授权

US09627943B2 Motor cooling structure and motor 有权
公开(公告)号：US09627943B2
公开(公告)日：2017-04-18
申请号：US13818122
申请日：2012-03-01
申请人： Hiroyuki Tokunaga , Akira Okabe , Kazuhiro Okamoto , Teiichirou Chiba , Natsuki Watanabe
发明人： Hiroyuki Tokunaga , Akira Okabe , Kazuhiro Okamoto , Teiichirou Chiba , Natsuki Watanabe
IPC分类号： H02K9/19 , H02K1/32
CPC分类号： H02K9/19 , H02K1/32
摘要： A motor cooling structure for cooling a motor, which includes a shaft transmitting power and a rotor core attached to an outside of the shaft, by a cooling medium, includes: a cooling medium supply passage that extends to an inside of the shaft in an axial direction of the shaft and passes the cooling medium through the cooling medium supply passage; and a plurality of cooling medium passages that are branched from the cooling medium supply passage to cool the rotor core while flowing the cooling medium without branching the cooling medium in the axial direction and then eject the cooling medium from a plurality of ejection holes opened to a surface of the rotor core, wherein distances from a cooling medium inlet, through which the cooling medium flows into the cooling medium supply passage, to the respective ejection holes are equal between the plurality of cooling medium passages.

2. 发明申请

US20130334912A1 MOTOR COOLING STRUCTURE AND MOTOR 有权
标题翻译：电机冷却结构与电机
公开(公告)号：US20130334912A1
公开(公告)日：2013-12-19
申请号：US13818122
申请日：2012-03-01
申请人： Hiroyuki Tokunaga , Akira Okabe , Kazuhiro Okamoto , Teiichirou Chiba , Natsuki Watanabe
发明人： Hiroyuki Tokunaga , Akira Okabe , Kazuhiro Okamoto , Teiichirou Chiba , Natsuki Watanabe
IPC分类号： H02K9/19
CPC分类号： H02K9/19 , H02K1/32
摘要： A motor cooling structure for cooling a motor, which includes a shaft transmitting power and a rotor core attached to an outside of the shaft, by a cooling medium, includes: a cooling medium supply passage that extends to an inside of the shaft in an axial direction of the shaft and passes the cooling medium through the cooling medium supply passage; and a plurality of cooling medium passages that are branched from the cooling medium supply passage to cool the rotor core while flowing the cooling medium without branching the cooling medium in the axial direction and then eject the cooling medium from a plurality of ejection holes opened to a surface of the rotor core, wherein distances from a cooling medium inlet, through which the cooling medium flows into the cooling medium supply passage, to the respective ejection holes are equal between the plurality of cooling medium passages.
摘要翻译：一种用于冷却电动机的电动机冷却结构，其包括通过冷却介质连接到轴的外部的轴传动力和转子芯，包括：冷却介质供应通道，其沿轴向延伸到轴的内部轴的方向，并使冷却介质通过冷却介质供给通道; 以及多个冷却介质通道，其从所述冷却介质供给通道分支，以在使所述冷却介质流动的同时冷却所述转子芯，而不在所述轴向方向上分支所述冷却介质，然后将所述冷却介质从多个喷射孔喷射到转子芯的表面，其中冷却介质入口到冷却介质供给通道的冷却介质入口到各喷射孔的距离在多个冷却介质通道之间相等。

3. 发明授权

US11372355B2 Fixing device having thermal equalizer and image forming apparatus incorporating same 有权
公开(公告)号：US11372355B2
公开(公告)日：2022-06-28
申请号：US17392277
申请日：2021-08-03
申请人： Natsuki Watanabe
发明人： Natsuki Watanabe
IPC分类号： G03G15/20
摘要： A fixing device includes a fixing rotator, a pressure rotator, a belt holder, a pressure gear, a thermal equalizer, a nip formation pad, and a support. The thermal equalizer includes a first face facing a fixing nip between the fixing rotator and the pressure rotator, and second and third faces bending and extending from upstream end and downstream end, respectively, of the first face in a direction of rotation of the fixing rotator. An upstream boundary portion between the first face and the second face and a downstream boundary portion between the first face and the third face each include, at least in a longitudinal end portion of the thermal equalizer proximate to the pressure gear, an inclined portion inclined to narrow the first face toward a longitudinal end of the thermal equalizer and having an angle of inclination not greater than 3°.

4. 发明授权

US10527981B2 Fixing device and image forming apparatus incorporating same 有权
公开(公告)号：US10527981B2
公开(公告)日：2020-01-07
申请号：US16398896
申请日：2019-04-30
申请人： Yutaka Naitoh , Hiroshi Yoshinaga , Daisuke Inoue , Natsuki Watanabe , Takahiro Imada
发明人： Yutaka Naitoh , Hiroshi Yoshinaga , Daisuke Inoue , Natsuki Watanabe , Takahiro Imada
IPC分类号： G03G15/20 , G03G21/16
摘要： A fixing device includes a rotatable pressing roller, a fixing rotator to rotate in contact with the pressing roller, a nip formation pad, and a slide sheet disposed between the nip formation pad and the fixing rotator. The slide sheet includes a base material layer made of a woven fabric of spun yarn. In the base material layer, a distance between adjacent spun yarns is equal to or less than 0.4 times a width of the spun yarn in a cross-section of the slide sheet in a direction of slide movement of the fixing rotator, and, in a cross-section of the slide sheet in a longitudinal direction of the slide sheet and a direction perpendicular to the slide movement of the fixing rotator, a thickness of the spun yarn is equal to or greater than 0.2 times a width of the spun yarn.

5. 发明授权

US11237507B2 Fixing device and image forming apparatus 有权
公开(公告)号：US11237507B2
公开(公告)日：2022-02-01
申请号：US17073554
申请日：2020-10-19
申请人： Natsuki Watanabe
发明人： Natsuki Watanabe
IPC分类号： G03G15/20
摘要： A fixing device includes a heater including a first sealing portion and a second sealing portion disposed at a first lateral end and a second lateral end of a tube in a longitudinal direction of a fixing rotator, respectively. The first sealing portion includes a first inboard end distanced from a first lateral end of a heat generating portion with a first distance in the longitudinal direction of the fixing rotator. The second sealing portion includes a second inboard end distanced from a second lateral end of the heat generating portion with a second distance in the longitudinal direction of the fixing rotator. The second distance is smaller than the first distance. A driving force transmitter transmits a driving force to the fixing rotator or an opposed rotator and is disposed in a first lateral end side of the fixing device where the first sealing portion is disposed.

6. 发明授权

US10558154B1 Image forming apparatus incorporating pressing device 有权
公开(公告)号：US10558154B1
公开(公告)日：2020-02-11
申请号：US16521914
申请日：2019-07-25
申请人： Hiroshi Kajiyama , Naoki Iwaya , Hitoshi Fujiwara , Takuya Seshita , Takahiro Imada , Yoshiharu Takahashi , Natsuki Watanabe
发明人： Hiroshi Kajiyama , Naoki Iwaya , Hitoshi Fujiwara , Takuya Seshita , Takahiro Imada , Yoshiharu Takahashi , Natsuki Watanabe
IPC分类号： G03G15/20
摘要： An image forming apparatus includes a pressing device, an apparatus body, an opening body, and a vibration insulator. The pressing device housed in the apparatus body is configured to press a pressing body to a pressing target body. The opening body is configured to open and close to the apparatus body. The opening body presses a pressing target portion of the apparatus body, at a first pressing portion to cancel a pressing state of the pressing device by opening of the opening body and at a second pressing portion to enter the pressing state of the pressing device by closing of the opening body. The vibration insulator is provided on at least one of the pressing target portion and the second pressing portion, at a contact portion at which the pressing target portion contacts the second pressing portion when the first pressing portion cancels the pressing state.

7. 发明申请

US20190377286A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20190377286A1
公开(公告)日：2019-12-12
申请号：US16398896
申请日：2019-04-30
申请人： Yutaka Naitoh , Hiroshi Yoshinaga , Daisuke Inoue , Natsuki Watanabe , Takahiro Imada
发明人： Yutaka Naitoh , Hiroshi Yoshinaga , Daisuke Inoue , Natsuki Watanabe , Takahiro Imada
IPC分类号： G03G15/20
摘要： A fixing device includes a rotatable pressing roller, a fixing rotator to rotate in contact with the pressing roller, a nip formation pad, and a slide sheet disposed between the nip formation pad and the fixing rotator. The slide sheet includes a base material layer made of a woven fabric of spun yarn. In the base material layer, a distance between adjacent spun yarns is equal to or less than 0.4 times a width of the spun yarn in a cross-section of the slide sheet in a direction of slide movement of the fixing rotator, and, in a cross-section of the slide sheet in a longitudinal direction of the slide sheet and a direction perpendicular to the slide movement of the fixing rotator, a thickness of the spun yarn is equal to or greater than 0.2 times a width of the spun yarn.

8. 发明申请

US20200033764A1 IMAGE FORMING APPARATUS INCORPORATING PRESSING DEVICE 审中-公开
公开(公告)号：US20200033764A1
公开(公告)日：2020-01-30
申请号：US16521914
申请日：2019-07-25
申请人： Hiroshi Kajiyama , Naoki Iwaya , Hitoshi Fujiwara , Takuya Seshita , Takahiro Imada , Yoshiharu Takahashi , Natsuki Watanabe
发明人： Hiroshi Kajiyama , Naoki Iwaya , Hitoshi Fujiwara , Takuya Seshita , Takahiro Imada , Yoshiharu Takahashi , Natsuki Watanabe
IPC分类号： G03G15/20
摘要： An image forming apparatus includes a pressing device, an apparatus body, an opening body, and a vibration insulator. The pressing device housed in the apparatus body is configured to press a pressing body to a pressing target body. The opening body is configured to open and close to the apparatus body. The opening body presses a pressing target portion of the apparatus body, at a first pressing portion to cancel a pressing state of the pressing device by opening of the opening body and at a second pressing portion to enter the pressing state of the pressing device by closing of the opening body. The vibration insulator is provided on at least one of the pressing target portion and the second pressing portion, at a contact portion at which the pressing target portion contacts the second pressing portion when the first pressing portion cancels the pressing state.

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