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1. 发明授权

US06439072B1 Ball screw 有权
标题翻译：滚珠丝杠
公开(公告)号：US06439072B1
公开(公告)日：2002-08-27
申请号：US09313999
申请日：1999-05-19
申请人： Toshiharu Kajita , Takayuki Yabe , Hideyuki Sato
发明人： Toshiharu Kajita , Takayuki Yabe , Hideyuki Sato
IPC分类号： F16H2702
CPC分类号： F16H25/2223 , F16H25/2233 , Y10T74/18576 , Y10T74/18648
摘要： A ball nut 30 has a dowel 60 for circulating balls 50. A cage type retainer 40 is disposed between a screw shaft 20 and the ball nut 30 which engages with the screw shaft 20 through the ball 50. The retainer 40 is provided with a plurality of elongated holes 42 at a peripheral surface thereof to extend to an axial direction thereof so as to separate the balls 50 from one another in a peripheral direction thereof and to hold the balls therein to be free to roll. The distance of a space between the screw shaft 20 and the cage type retainer 40 is set to be smaller than that of a space between the dowel 60 and the cage type retainer 40 n the radial direction of the screw shaft.
摘要翻译：滚珠螺母30具有用于循环滚珠50的定位销60.笼式保持器40设置在螺杆轴20和滚珠螺母30之间，滚珠螺母30通过滚珠50与螺杆轴20接合。保持架40设有多个在其周向表面上延伸有细长孔42，以沿其轴向方向延伸，以便使球50在其圆周方向上彼此分离，并将球保持在其中以自由滚动。螺杆轴20与保持架型保持架40之间的距离设定为小于螺钉轴的径向方向上的定位销60与保持架型保持架40之间的间隔。

2. 发明授权

US5613400A Ball screw device with resonance preventing means for a screw shaft and table drive device including the same 失效
标题翻译：具有螺旋轴共振防止装置的滚珠丝杠装置和包括该螺旋轴的工作台驱动装置
公开(公告)号：US5613400A
公开(公告)日：1997-03-25
申请号：US373379
申请日：1995-01-17
申请人： Hideyuki Sato , Toshiharu Kajita
发明人： Hideyuki Sato , Toshiharu Kajita
IPC分类号： F16H25/22 , F16H57/00 , F16H25/24
CPC分类号： F16H25/2204 , F16H57/0006 , Y10T74/1868
摘要： A ball screw device includes a screw shaft including a hollow hole, a vibration controlling mass member inserted into the hollow hole, a rubber member or a synthetic resin member which is interposed between the outer surface of the vibration controlling mass member and the inner surface of the hollow hole of the screw shaft to prevent contact between the vibration controlling mass member and hollow hole. Further, the ball screw device includes vibration controlling mass member hold rings respectively interposed between the outer surface of the vibration controlling mass member and the inner surface of the hollow hole of the screw shaft and providing two or more support points spaced from each other in the axial direction of the mass member, with slight clearances being provided at least between the outside diameter surfaces of the hold rings and the inside diameter surface of the hollow hole. A table drive device, which includes the ball screw device, is supported on a base member in parallel to the screw shaft and can be moved when a ball nut is rotationally driven by a drive motor disposed on the table.
摘要翻译：滚珠丝杠装置包括：螺杆轴，包括中空孔，插入中空孔中的振动控制质量部件，橡胶部件或合成树脂部件，该橡胶部件或合成树脂部件设置在振动控制质量部件的外表面和螺杆轴的中空孔，以防止振动控制质量构件和中空孔之间的接触。此外，滚珠丝杠装置包括振动控制质量部件保持环，其分别插入在振动控制质量部件的外表面和螺杆轴的中空孔的内表面之间，并且在该位置上提供彼此间隔开的两个或更多个支撑点至少在保持环的外径表面和中空孔的内径表面之间提供微小的间隙。包括滚珠丝杠装置的台面驱动装置与螺纹轴平行地支撑在基部构件上，并且当通过设置在工作台上的驱动电动机旋转地驱动滚珠螺母时可以移动。

3. 发明申请

US20060121833A1 Linear motion apparatus and method for manufacturing thereof 失效
公开(公告)号：US20060121833A1
公开(公告)日：2006-06-08
申请号：US11341436
申请日：2006-01-30
申请人： Toshiharu Kajita
发明人： Toshiharu Kajita
IPC分类号： B24B1/00
CPC分类号： F16H25/2214 , B23Q5/406 , B24B15/00 , B24B31/116 , Y10T74/19749 , Y10T74/19767
摘要： A linear motion apparatus has a guide shaft including a spiral-shaped or linear-shaped rolling element rolling groove, a movable body including a spiral-shaped or linear-shaped rolling element rolling groove opposed to the rolling element rolling groove of the guide shaft, a large number of rolling elements rollably moving along a rolling element rolling passage formed between the rolling element rolling grooves of the guide shaft and movable body and, a rolling element return passage communicating with the rolling element rolling passage, wherein, in the portion of the rolling element rolling groove of the movable body that is adjacent to an open end of a rolling element return passage, an escape portion is formed by abrasive flow machining in such a manner that the grinding depth thereof increases gradually toward the open end of the rolling element return passage.

4. 发明授权

US07024958B2 Linear motion apparatus and method for manufacturing thereof 失效
标题翻译：直线运动装置及其制造方法
公开(公告)号：US07024958B2
公开(公告)日：2006-04-11
申请号：US10465661
申请日：2003-06-20
申请人： Toshiharu Kajita
发明人： Toshiharu Kajita
IPC分类号： F16H25/22
CPC分类号： F16H25/2214 , B23Q5/406 , B24B15/00 , B24B31/116 , Y10T74/19749 , Y10T74/19767
摘要： A linear motion apparatus has a guide shaft including a spiral-shaped or linear-shaped rolling element rolling groove, a movable body including a spiral-shaped or linear-shaped rolling element rolling groove opposed to the rolling element rolling groove of the guide shaft, a large number of rolling elements rollably moving along a rolling element rolling passage formed between the rolling element rolling grooves of the guide shaft and movable body and, a rolling element return passage communicating with the rolling element rolling passage, wherein, in the portion of the rolling element rolling groove of the movable body that is adjacent to an open end of a rolling element return passage, an escape portion is formed by abrasive flow machining in such a manner that the grinding depth thereof increases gradually toward the open end of the rolling element return passage.
摘要翻译：直线运动装置具有包括螺旋状或直线状的滚动体滚动槽的导向轴，包括与导向轴的滚动体滚动槽对置的螺旋状或直线状的滚动体滚动槽的可动体，大量滚动元件可滚动地沿着滚动元件滚动通道移动，该滚动元件滚动通道形成在导向轴和可移动体的滚动元件滚动槽之间，滚动元件返回通道与滚动元件滚动通道连通，其中，在与滚动元件返回通道的开口端相邻的可动体的滚动元件滚动槽，通过磨料流动加工形成排出部，使其研磨深度朝向滚动体的开口端逐渐增大返回通道

5. 发明申请

US20060032323A1 Ball circulating member and ball screw 审中-公开
标题翻译：滚珠循环构件和滚珠丝杠
公开(公告)号：US20060032323A1
公开(公告)日：2006-02-16
申请号：US11198231
申请日：2005-08-08
申请人： Tsutomu Ohkubo , Eiji Hayashi , Toshiharu Kajita
发明人： Tsutomu Ohkubo , Eiji Hayashi , Toshiharu Kajita
IPC分类号： F16H1/24
CPC分类号： F16H25/2214 , Y10T74/19777
摘要： A side cap 17 is formed by two ball circulating member-forming members 23 and 23 divided from each other along a division line PL extending in a direction of advancing of balls 15 passing through the interior of the side cap. The side cap 17 includes ball scoop-up portions 24 each for scooping-up the balls 15 from a ball track passageway 8 at one side thereof, and a ball circulating passageway 27 (formed integrally with the ball scoop-up portions) for returning the balls 15, scooped-up at the ball scoop-up portion 24, to the ball track passageway 8 at the other side thereof. The side cap has notch portions 25 formed respectively at scoop-up proximal end portions 24a thereof integrally connecting the ball scoop-up portions 24 respectively to the ball circulating passageway 27. The division line PL is formed in such a position that it beforehand cuts the notch portion 25 at the one side and the notch portion 25 at the other side.
摘要翻译：侧盖17由沿着通过侧盖内部的球15的前进方向延伸的分割线PL彼此分开的两个球循环构件形成构件23和23形成。侧盖17包括球勺部分24，每个舀取部分24用于从其一侧的球道通道8舀取球15，以及球循环通道27（与球勺部分一体形成），用于使球在球舀取部分24上舀起的球15在另一侧到球道通道8。侧盖具有分别形成有将球勺部分24分别连接到球循环通道27的舀起的近端部分24a处形成的切口部分25。分割线PL形成在预先切割一侧的切口部25和另一侧切口部25的位置。

6. 发明申请

US20050281496A1 Linear motion device 审中-公开
标题翻译：直线运动装置
公开(公告)号：US20050281496A1
公开(公告)日：2005-12-22
申请号：US11089015
申请日：2005-03-25
申请人： Daiju Takahashi , Toshiharu Kajita
发明人： Daiju Takahashi , Toshiharu Kajita
IPC分类号： B24C1/10 , F16C29/06 , F16C33/10 , F16C33/34 , F16C33/64 , F16C33/66 , F16H25/22
CPC分类号： F16C29/065 , F16C29/005 , F16C33/34 , F16C33/585 , F16C33/64 , F16C33/6651 , F16C33/6696 , F16C2240/54 , F16H25/22 , F16H2025/249
摘要： A linear motion device for receiving a load through a plurality of rolling elements sandwiched between a first and a second rolling-element rolling groove, wherein oil reservoirs constituted by numerous infinitesimal recesses each having a substantially circular arc-shaped section and having a surface roughness of 0.02 to 0.2 μm Ra are formed in the surface of at least one of each of the rolling elements, the first rolling-element rolling groove, and the second rolling-element rolling groove.
摘要翻译：一种线性运动装置，用于通过夹在第一和第二滚动体滚动槽之间的多个滚动元件接收载荷，其中由多个无穷小的凹部构成的储油器，每个凹槽各自具有大致圆弧形部分，并且具有表面粗糙度每个滚动元件，第一滚动元件滚动槽和第二滚动元件滚动槽中的至少一个的表面中形成有0.02至0.2μm的Ra。

7. 发明授权

US06769324B2 Ball screw 有权
标题翻译：滚珠丝杠
公开(公告)号：US06769324B2
公开(公告)日：2004-08-03
申请号：US09985847
申请日：2001-11-06
申请人： Toshiharu Kajita
发明人： Toshiharu Kajita
IPC分类号： F16C2906
CPC分类号： F16C33/3706 , F16H25/2238 , F16H2025/2242 , Y10T74/19749 , Y10T74/19777
摘要： A super finishing is carried out after grinding, so that surface roughness of a ball rolling groove of a screw shaft is made 0.12 &mgr;m or less in an average roughness (Ra). Separators 7 having ball holding surfaces shaped in concave surface are disposed between balls respectively.
摘要翻译：在研磨后进行超精加工，使得螺杆轴的滚珠滚动槽的表面粗糙度在平均粗糙度（Ra）为0.12μm以下。具有凹形表面成形的球保持表面的分离器7分别设置在球之间。

8. 发明授权

US07390241B2 Linear motion apparatus and method for manufacturing thereof 失效
标题翻译：直线运动装置及其制造方法
公开(公告)号：US07390241B2
公开(公告)日：2008-06-24
申请号：US11341436
申请日：2006-01-30
申请人： Toshiharu Kajita
发明人： Toshiharu Kajita
IPC分类号： B24B1/00
CPC分类号： F16H25/2214 , B23Q5/406 , B24B15/00 , B24B31/116 , Y10T74/19749 , Y10T74/19767
摘要： A linear motion apparatus has a guide shaft including a spiral-shaped or linear-shaped rolling element rolling groove, a movable body including a spiral-shaped or linear-shaped rolling element rolling groove opposed to the rolling element rolling groove of the guide shaft, a large number of rolling elements rollably moving along a rolling element rolling passage formed between the rolling element rolling grooves of the guide shaft and movable body and, a rolling element return passage communicating with the rolling element rolling passage, wherein, in the portion of the rolling element rolling groove of the movable body that is adjacent to an open end of a rolling element return passage, an escape portion is formed by abrasive flow machining in such a manner that the grinding depth thereof increases gradually toward the open end of the rolling element return passage.
摘要翻译：直线运动装置具有包括螺旋状或直线状的滚动体滚动槽的导向轴，包括与导向轴的滚动体滚动槽对置的螺旋状或直线状的滚动体滚动槽的可动体，大量滚动元件可滚动地沿着滚动元件滚动通道移动，该滚动元件滚动通道形成在导向轴和可移动体的滚动元件滚动槽之间，滚动元件返回通道与滚动元件滚动通道连通，其中，在与滚动元件返回通道的开口端相邻的可动体的滚动元件滚动槽，通过磨料流动加工形成排出部，使其研磨深度朝向滚动体的开口端逐渐增大返回通道

9. 发明授权

US07044016B2 Ball screw 有权
标题翻译：滚珠丝杠
公开(公告)号：US07044016B2
公开(公告)日：2006-05-16
申请号：US10331654
申请日：2002-12-31
申请人： Toshiharu Kajita
发明人： Toshiharu Kajita
IPC分类号： F16H1/24 , F16H55/02 , F16H27/02 , F16H19/00
CPC分类号： F16C33/3706 , F16C33/3713 , F16H25/2233 , F16H25/24 , F16H2025/2481 , Y10T74/18576 , Y10T74/19702 , Y10T74/19721 , Y10T74/19744
摘要： A ball screw having: a screw shaft having a spiral ball rolling groove; a ball nut having a ball rolling groove corresponding to the ball rolling groove; and a large number of balls interposed between the ball rolling grooves so as to roll freely; wherein the ball rolling groove of at least one of the screw shaft and the ball nut is ground so that a maximum value component of a number of undulation peaks per lead in the ball rolling groove is not in a range of from 0.95 nm to 1.05 nm centered on an integral multiple nm of a number m of load balls per lead calculated by an expression: ( π ⁢ ⁢ d m ) 2 + L 2 P in which P is a distance between centers of the adjacent load balls disposed at substantially equal intervals in the ball rolling groove, dm is a ball pitch circle diameter, and L is a lead.
摘要翻译：一种滚珠丝杠，具有：具有螺旋滚珠滚动槽的螺杆轴; 具有与滚珠槽相对应的滚珠滚道的滚珠螺母; 和多个滚珠插入在滚珠滚动槽之间以便自由滚动; 其特征在于，所述螺杆轴和所述滚珠螺母中的至少一个的滚珠滚动槽被研磨，使得所述滚珠滚动槽中的每个引线的波峰数的最大值分量不在0.95nm至1.05nm的范围内以一个表达式计算的每个导数的m个负载球的整数倍的nm为中心： $\sqrt{（pi}$

10. 发明授权

US06316900B2 Single shaft type table feed device 有权
标题翻译：单轴式台式进给装置
公开(公告)号：US06316900B2
公开(公告)日：2001-11-13
申请号：US09741491
申请日：2000-12-19
申请人： Toshiharu Kajita , Hiroshi Fujita
发明人： Toshiharu Kajita , Hiroshi Fujita
IPC分类号： G05B106
CPC分类号： F16H25/24 , B23Q1/58 , F16H2025/2436 , Y10T74/18656
摘要： A single shaft type table feed device comprises a movable body and an auxiliary movable body 34. The movable body is supported by a guide rail 31 and can be freely moved by a feed screw shaft 35 in the axial direction thereof. The auxiliary movable body 34 includes an inside diameter portion through which the feed screw shaft 35 can be inserted. The auxiliary movable body 34 is supported by the guide rail 31 and freely movable in the axial direction thereof. The inside diameter portion 38a of the auxiliary movable body 34 is slidingly contacted with the feed screw shaft 35.
摘要翻译：单轴式台式进给装置包括可移动体和辅助可移动体34.可移动体由导轨31支撑并且可以通过进给丝杠轴35在其轴向方向上自由移动。辅助移动体34包括可以插入进给丝杠轴35的内径部分。辅助移动体34由导轨31支撑，并可沿其轴向自由移动。辅助可移动体34的内径部分38a与进给丝杠轴35滑动接触。

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