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1. 发明申请

US20080078264A1 Ball Screw Mechanism 审中-公开
标题翻译：滚珠丝杠机构
公开(公告)号：US20080078264A1
公开(公告)日：2008-04-03
申请号：US11663720
申请日：2005-09-22
申请人： Tomofumi Yamashita , Yoshinori Jingu , Shingo Saitou
发明人： Tomofumi Yamashita , Yoshinori Jingu , Shingo Saitou
IPC分类号： F16H25/22 , F16H25/24
CPC分类号： F16H25/2228 , F16H25/24 , Y10T74/19767
摘要： The outside diameter φ of a land portion 1c is set to be larger than a BCD. Thus, when a ball 3 goes into a deep portion (a portion close to an axis line O of a screw shaft 1), the land portion 1c of the screw shaft 1 guides the ball. Consequently, the circulation of the ball 3 can smoothly be performed.
摘要翻译：陆地部分1c的外径φi被设定为大于BCD。因此，当球3进入深部（靠近螺杆1的轴线O的部分）时，螺杆轴1的陆部1c引导球。因此，可以顺利地进行球3的循环。

2. 发明授权

US08196486B2 Ball screw mechanism and assembling method of the same 有权
标题翻译：滚珠丝杠机构及组装方法相同
公开(公告)号：US08196486B2
公开(公告)日：2012-06-12
申请号：US11817631
申请日：2006-09-05
申请人： Toru Harada , Yoshinori Jingu , Tomofumi Yamashita , Shingo Saitou
发明人： Toru Harada , Yoshinori Jingu , Tomofumi Yamashita , Shingo Saitou
IPC分类号： F16H1/24
CPC分类号： F16H25/2223 , F16H2025/2481 , Y10T74/19744 , Y10T74/19749 , Y10T74/19758 , Y10T74/19767 , Y10T403/68
摘要： Since it is configured that an female screw groove 2a of a nut 2 extends round an axis of the nut 2 through 360 degrees or less and a sectional shape thereof taken at right angles to the groove contains a circular arc portion 2c of 90 degrees or less and a rectilinear portion 2d which connects to the circular arc portion at a bottom of the groove and extends in parallel with the axis, after molding, a lower mold LM and an upper mold UM can simply be removed from a barrel mold BM in the axial direction, and consequently, the necessity of provision of a parting plane which passes through the thread groove 2a can be obviated, thereby making it possible to easily form the thread groove 2a which is free from a difference in level or a stepped portion.
摘要翻译：由于螺母2的阴螺纹槽2a在螺母2的轴线上延伸360度以下，其与槽成直角的截面形状为90度以下的圆弧部2c 以及直线部分2d，其在凹槽的底部处连接到圆弧部分并且与轴线平行延伸，在模制之后，下模LM和上模具UM可以简单地从轴向的圆筒模具BM中移除因此，可以避免提供通过螺纹槽2a的分型面的必要性，从而可以容易地形成没有水平差或阶梯部的螺纹槽2a。

3. 发明申请

US20080250887A1 Ball Screw Mechanism and Assembling Method of the Same 有权
标题翻译：滚珠丝杠机构及其组装方法
公开(公告)号：US20080250887A1
公开(公告)日：2008-10-16
申请号：US11817631
申请日：2006-09-05
申请人： Tooru Harada , Yoshinori Jingu , Tomofumi Yamashita , Shingo Saitou
发明人： Tooru Harada , Yoshinori Jingu , Tomofumi Yamashita , Shingo Saitou
IPC分类号： F16H25/22 , F16B7/18
CPC分类号： F16H25/2223 , F16H2025/2481 , Y10T74/19744 , Y10T74/19749 , Y10T74/19758 , Y10T74/19767 , Y10T403/68
摘要： Since it is configured that an female screw groove 2a of a nut 2 extends round an axis of the nut 2 through 360 degrees or less and a sectional shape thereof taken at right angles to the groove contains a circular arc portion 2c of 90 degrees or less and a rectilinear portion 2d which connects to the circular arc portion at a bottom of the groove and extends in parallel with the axis, after molding, a lower mold LM and an upper mold UM can simply be removed from a barrel mold BM in the axial direction, and consequently, the necessity of provision of a parting plane which passes through the thread groove 2a can be obviated, thereby making it possible to easily form the thread groove 2a which is free from a difference in level or a stepped portion.
摘要翻译：由于螺母2的内螺纹槽2a在螺母2的轴线上延伸360度以下，与槽成直角的截面形状为90度的圆弧部2c 或更小的直线部分2d以及在凹槽的底部处连接到圆弧部分并且与轴线平行延伸的直线部分2d，在模制之后，下模LM和上模具UM可以简单地从筒模BM中移除因此能够避免设置通过螺纹槽2a的分型面的必要性，从而能够容易地形成没有水平差的螺纹槽2a，或阶梯部分。

4. 发明授权

US08950283B2 Method for manufacturing nut for ball screw and ball screw 有权
标题翻译：滚珠丝杠和滚珠丝杠螺母的制造方法
公开(公告)号：US08950283B2
公开(公告)日：2015-02-10
申请号：US13581258
申请日：2011-03-31
申请人： Atsushi Watanabe , Toru Harada , Shouji Yokoyama , Kiyoshi Ootsuka , Koji Hashimoto , Kazuto Kobayashi , Toshio Nakamura , Shinobu Mogi , Shingo Saitou , Tomofumi Yamashita
发明人： Atsushi Watanabe , Toru Harada , Shouji Yokoyama , Kiyoshi Ootsuka , Koji Hashimoto , Kazuto Kobayashi , Toshio Nakamura , Shinobu Mogi , Shingo Saitou , Tomofumi Yamashita
IPC分类号： F16H25/22 , B21K1/70 , B21J5/12 , B21K1/04 , B21K21/12 , B21K21/16 , B21K23/00 , B21J13/02
CPC分类号： B21K1/70 , B21J5/12 , B21J13/025 , B21K1/04 , B21K21/12 , B21K21/16 , B21K23/00 , F16H25/2223 , F16H2025/2481 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： A method forms a concave constituting a ball return passage directly on an inner circumferential surface of a nut blank by plastic working without damaging a die. Letter S shaped concaves are formed on an inner circumferential surface of a nut blank, by pressing by use of a die having a blank holder, a cam driver, cam sliders, and a cylindrical member. The cam driver has inclined surfaces having the same angle of inclination as the cam sliders. The cam sliders have letter S shaped convexes corresponding to the letter S shaped concaves, and are held by through holes, respectively. When the cam driver is pressed from the top thereof, the cam sliders move outwardly in the radial direction, respectively, and the letter S shaped convexes push the inner circumferential surface of the nut blank for plastic deformation.
摘要翻译：一种方法通过塑料加工在螺母坯件的内周面上直接形成一个构成球返回通道的凹槽，而不会损坏模具。通过使用具有坯料保持器，凸轮驱动器，凸轮滑块和圆柱形构件的模具进行压制，在螺母坯料的内周面上形成字母S形凹部。凸轮驱动器具有与凸轮滑块具有相同倾斜角度的倾斜表面。凸轮滑块具有对应于字母S形凹部的字母S形凸起，并且分别由通孔保持。当凸轮驱动器从其顶部按压时，凸轮滑块分别沿径向向外移动，字母S形凸起推动螺母坯件的内圆周表面以塑性变形。

5. 发明申请

US20130008275A1 Method for Manufacturing Nut for Ball Screw and Ball Screw 有权
标题翻译：滚珠丝杠和滚珠丝杠螺母的制造方法
公开(公告)号：US20130008275A1
公开(公告)日：2013-01-10
申请号：US13581258
申请日：2011-03-31
申请人： Atsushi Watanabe , Toru Harada , Shouji Yokoyama , Kiyoshi Ootsuka , Koji Hashimoto , Kazuto Kobayashi , Toshio Nakamura , Shinobu Mogi , Shingo Saitou , Tomofumi Yamashita
发明人： Atsushi Watanabe , Toru Harada , Shouji Yokoyama , Kiyoshi Ootsuka , Koji Hashimoto , Kazuto Kobayashi , Toshio Nakamura , Shinobu Mogi , Shingo Saitou , Tomofumi Yamashita
IPC分类号： B21K1/70 , F16H25/22
CPC分类号： B21K1/70 , B21J5/12 , B21J13/025 , B21K1/04 , B21K21/12 , B21K21/16 , B21K23/00 , F16H25/2223 , F16H2025/2481 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： A method forms a concave constituting a ball return passage directly on an inner circumferential surface of a nut blank by plastic working without damaging a die. Letter S shaped concaves are formed on an inner circumferential surface of a nut blank, by pressing by use of a die having a blank holder, a cam driver, cam sliders, and a cylindrical member. The cam driver has inclined surfaces having the same angle of inclination as the cam sliders. The cam sliders have letter S shaped convexes corresponding to the letter S shaped concaves, and are held by through holes, respectively. When the cam driver is pressed from the top thereof, the cam sliders move outwardly in the radial direction, respectively, and the letter S shaped convexes push the inner circumferential surface of the nut blank for plastic deformation.
摘要翻译：一种方法通过塑料加工在螺母坯件的内周面上直接形成一个构成球返回通道的凹槽，而不会损坏模具。通过使用具有坯料保持器，凸轮驱动器，凸轮滑块和圆柱形构件的模具进行压制，在螺母坯料的内周面上形成字母S形凹部。凸轮驱动器具有与凸轮滑块具有相同倾斜角度的倾斜表面。凸轮滑块具有对应于字母S形凹部的字母S形凸起，并且分别由通孔保持。当凸轮驱动器从其顶部按压时，凸轮滑块分别沿径向向外移动，字母S形凸起推动螺母坯件的内圆周表面以塑性变形。

6. 发明申请

US20060156844A1 Ball screw mechanism 审中-公开
标题翻译：滚珠丝杠机构
公开(公告)号：US20060156844A1
公开(公告)日：2006-07-20
申请号：US11302249
申请日：2005-12-14
申请人： Tomofumi Yamashita , Daisaku Kawada , Shingo Saitou , Taikou Nawamoto
发明人： Tomofumi Yamashita , Daisaku Kawada , Shingo Saitou , Taikou Nawamoto
IPC分类号： F16H25/22
CPC分类号： F16H25/2214 , Y10T74/19767
摘要： Since a mounting member 11 has a cylindrical surface 11h to be engaged with a cylindrical hole 4d, it is possible to position a mounting member 11 and a nut 4 by only engaging the cylindrical surface 11h with the cylindrical hole 4d. Accordingly, it is possible to easily perform an assembly. In addition, when a force is applied to the mounting member 11 from the guide groove 1e of the case 1 in the rotational direction of the nut 4, the force is partially applied to the cylindrical hole 4d. Therefore, it is possible to reduce a load applied to screws 12 that fix the mounting member 11, and to use thinner screws.
摘要翻译：由于安装构件11具有与圆筒孔4d接合的圆柱形表面11h，所以可以通过仅将圆柱形表面11h与圆柱形孔4d接合来定位安装构件11和螺母4。因此，可以容易地进行组装。此外，当从螺母4的旋转方向从壳体1的引导槽1 e向安装构件11施加力时，力部分地施加到圆筒孔4d。因此，可以减少施加在固定安装构件11的螺钉12上的负载，并且使用较薄的螺钉。

7. 发明申请

US20120325036A1 Ball Screw and Manufacturing Method of Nut for Ball Screw 审中-公开
标题翻译：滚珠丝杠螺母和螺母的制造方法
公开(公告)号：US20120325036A1
公开(公告)日：2012-12-27
申请号：US13581210
申请日：2011-03-16
申请人： Toru Harada , Koji Hashimoto , Tsuyoshi Ito , Tomofumi Yamashita , Naoya Aoki
发明人： Toru Harada , Koji Hashimoto , Tsuyoshi Ito , Tomofumi Yamashita , Naoya Aoki
IPC分类号： F16H25/22 , B21K1/70
CPC分类号： B21K1/70 , B21J5/025 , B21J5/12 , B21J13/025 , B21K1/04 , B21K21/12 , B21K21/16 , B21K23/00 , F16H25/2223 , Y10T74/19767
摘要： A ball screw is provided in which an outer circumferential formation is formed at a portion facing a ball circulating passage out of outer circumferential surface of a nut. The ball screw includes: a screw shaft having on its outer circumferential surface a screw groove; a nut having on its inner circumferential surface a screw groove facing the screw groove; a plurality of balls rollably loaded in a spiral ball rolling passage formed by both screw grooves; and a ball circulating passage to return the balls from a start point to an end point of the ball rolling passage for recirculation. The ball circulating passage is a concaved groove formed by concaving a groove on a part of the cylindrical inner circumferential surface of the nut by plastic working. Then, a flange is integrally provided at a portion facing the ball circulating passage and the screw groove.
摘要翻译：提供一种滚珠丝杠，其中在与螺母的外周面相对的面向球循环通道的部分处形成有外周部结构。滚珠丝杠包括：螺杆轴，其外周面上具有螺纹槽; 螺母在其内周面上具有面向螺纹槽的螺纹槽; 可滚动地装载在由两个螺纹槽形成的螺旋滚珠滚动通道中的多个滚珠; 以及球循环通道，用于将球从起始点返回到球滚动通道的终点以用于再循环。球循环通道是通过塑性加工在螺母的圆柱形内圆周表面的一部分上凹入凹槽而形成的凹槽。然后，在面对球循环通道和螺纹槽的部分上一体地设有凸缘。

8. 发明授权

US08297142B2 Actuator 有权
标题翻译：执行器
公开(公告)号：US08297142B2
公开(公告)日：2012-10-30
申请号：US12052073
申请日：2008-03-20
申请人： Daisaku Kawada , Koji Hashimoto , Shingo Saito , Shinobu Mogi , Toru Harada , Manabu Horikoshi , Tomofumi Yamashita , Naoya Aoki , Atsushi Hirabayashi
发明人： Daisaku Kawada , Koji Hashimoto , Shingo Saito , Shinobu Mogi , Toru Harada , Manabu Horikoshi , Tomofumi Yamashita , Naoya Aoki , Atsushi Hirabayashi
IPC分类号： B60K17/04
CPC分类号： F16H25/20 , F16H25/2015 , F16H25/2204 , F16H2025/2081 , Y10T74/2003
摘要： Since centers of a second gear, a fourth gear and a sixth gear coincide with each other and are disposed rotatably round a circumference of the same long shaft, a compact configuration can be realized while using a gear train of five gears to obtain a reduction gear ratio of a high gear ratio. The configuration in which the three gears have the same rotational center shaft in the way described above in an actuator which incorporates a plurality of gears is advantageous in that the number of center shafts is reduced and that the number of supporting holes in a housing which support center shafts is reduced.
摘要翻译：由于第二齿轮，第四齿轮和第六齿轮的中心彼此一致并且可旋转地设置在同一长轴的圆周上，所以可以在使用五档齿轮系的同时实现紧凑的结构，以获得减速齿轮高档比的比例。在包括多个齿轮的致动器中，三个齿轮具有与上述相同的旋转中心轴的构造的优点在于，中心轴的数量减少，并且壳体中的支撑孔的数量支撑中心轴减少。

9. 发明申请

US20120247240A1 Linear Actuator 有权
标题翻译：线性执行器
公开(公告)号：US20120247240A1
公开(公告)日：2012-10-04
申请号：US13516454
申请日：2011-04-26
申请人： Hiroshi Kawahara , Tooru Harada , Tomofumi Yamashita
发明人： Hiroshi Kawahara , Tooru Harada , Tomofumi Yamashita
IPC分类号： F16H25/20
CPC分类号： F16H25/20 , F16H25/2015 , F16H25/2214 , F16H2025/204 , F16H2025/2081
摘要： A linear actuator is provided which is able to simplify its structure by adding a stopper function, too, to a detent mechanism and to prevent generation of radial load. The linear actuator comprises a ball screw mechanism, to which a rotational driving force is transmitted, for converting a rotational motion into a linear motion. The ball screw mechanism comprises radially projecting guide projections provided in a linear motion component, and a guide groove arranged in a securing portion facing the linear motion component and is engaged with the guide projections to guide the guide projections in an axial direction. The guide projection has a projection projecting by the predetermined length, while engaging into the guide groove, at a stroke end of the linear motion component and a locking portion provided in a rotary motion component is locked to the projection of the guide projection.
摘要翻译：提供了一种线性致动器，其能够通过向制动机构添加止动器功能并且防止径向载荷的产生来简化其结构。线性致动器包括用于将旋转运动转换成直线运动的滚珠丝杠机构，旋转驱动力被传递到该滚珠丝杠机构。滚珠丝杠机构包括设置在直线运动部件中的径向突出的引导突起，以及布置在面向线性运动部件的固定部分中的引导槽，并且与引导突起接合以沿轴向引导引导突起。引导突起具有在线性运动部件的行程末端处突出预定长度的突起，同时在引导槽中接合，并且设置在旋转运动部件中的锁定部分锁定到引导突起的突出部。

10. 发明授权

US07986894B2 Power supply device, fixing device and image forming apparatus 失效
标题翻译：电源装置，定影装置和成像装置
公开(公告)号：US07986894B2
公开(公告)日：2011-07-26
申请号：US12230298
申请日：2008-08-27
申请人： Tomofumi Yamashita , Hiroyuki Shinohara , Shoji Totsuka , Nobuyuki Shigeyama , Katsuaki Murata
发明人： Tomofumi Yamashita , Hiroyuki Shinohara , Shoji Totsuka , Nobuyuki Shigeyama , Katsuaki Murata
IPC分类号： G03G15/20
CPC分类号： G03G15/2014 , H05B6/06 , H05B2213/07
摘要： A disclosed power supply device includes a voltage resonance circuit configured to include an output coil for boosting an input direct-current voltage to a predetermined voltage and outputting the boosted voltage to a load and also include a capacitor connected to the output coil; and a switching unit configured to be turned ON/OFF so as to control electric current supply to the output coil. An auxiliary resonance circuit is connected in parallel with the output coil so as to reduce switching losses without using a power control circuit for switching control.
摘要翻译：所公开的电源装置包括电压谐振电路，其被配置为包括用于将输入直流电压升压到预定电压并将升压电压输出到负载的输出线圈，并且还包括连接到输出线圈的电容器; 以及开关单元，被配置为接通/关断，以便控制对输出线圈的电流供应。辅助谐振电路与输出线圈并联连接，以便在不使用用于开关控制的功率控制电路的情况下降低开关损耗。

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