公开(公告)号：US06282971B1

公开(公告)日：2001-09-04

申请号：US09332110

申请日：1999-06-14

申请人： Takeki Shirai ,  Shigeru Ebina ,  Ryuji Takeda

发明人： Takeki Shirai ,  Shigeru Ebina ,  Ryuji Takeda

IPC分类号： F16H2522

CPC分类号： F16H25/2214 ,  Y10T74/19772

摘要： A ball screw comprises a screw shaft formed on an outer peripheral surface thereof with a spiral ball rolling groove, a nut member having an inner peripheral surface on which a spiral loaded ball rolling groove corresponding to the spiral ball rolling groove of the screw shaft is formed, both the spiral grooves constituting a loaded ball rolling passage in combination thereof when the screw shaft is fitted to the nut member, a number of balls rolling in the loaded ball rolling passage, and a return pipe having one end connected to one end of the loaded ball rolling passage and another end connected to another end of the loaded ball rolling passage so as to scoop the balls rolling in the loaded ball rolling passage at the one end of the return pipe and return the balls to the loaded ball rolling passage at the other one end of the return pipe. Cutouts, each having a width gradually reduced, are formed to both end portions of the return pipe so that the width of the cutout is gradually reduced towards the inside of the return pipe.

摘要翻译： 滚珠丝杠包括在其外周面上形成有螺旋滚珠滚动槽的螺杆轴，具有内周面的螺母部件，螺旋滚珠滚珠槽与丝杠轴的螺旋滚珠滚动槽对应， 当将螺杆轴装配到螺母构件上时，构成负载球滚动通道的螺旋槽两者，在负载球滚动通道中滚动的多个滚珠，以及一端连接到所述螺母槽的一端的回流管 另一端连接到负载球滚动通道的另一端，以便在回流管的一端舀取在负载滚珠滚动通道中滚动的滚珠，并将滚珠返回到负载球滚动通道 回流管的另一端。 在返回管的两端部形成有宽度逐渐减小的切口，使得切口的宽度朝向返回管的内侧逐渐减小。

公开(公告)号：US06286383B1

公开(公告)日：2001-09-11

申请号：US09423609

申请日：1999-11-15

申请人： Takeki Shirai ,  Hidekazu Michioka ,  Shigeru Ebina ,  Ryuji Takeda

发明人： Takeki Shirai ,  Hidekazu Michioka ,  Shigeru Ebina ,  Ryuji Takeda

IPC分类号： F16H114

CPC分类号： F16C33/3825 ,  F16C33/3706 ,  F16H25/2238 ,  Y10T74/19767 ,  Y10T74/19772 ,  Y10T74/19777

摘要： This invention relates to improvement of a ball screw unit in which a nut member meshes with a screw shaft via a plurality of balls circulating endlessly. The balls are disposed freely rotatably in line at a predetermined interval in a ball arranging member formed in a belt-like shape. If a relative rotation occurs between the nut member and screw shaft, the balls circulate in the infinite circulation path with the ball arranging member. Guide pieces are projected to both sides of the ball arranging member and guide grooves for accommodating each of the guide pieces are formed along the entire circumference of the infinite circulation path. Therefore, the ball arranging member is introduced by the guide grooves and circulates in the infinite circulation path without being fluttered.

摘要翻译： 本发明涉及一种滚珠丝杠单元的改进，其中螺母构件通过多个循环的滚珠与丝杠轴啮合。 在以带状形状形成的滚珠排列构件中，滚珠以预定的间隔可自由转动地设置。 如果在螺母构件和螺杆轴之间发生相对旋转，则球在与球排列构件无限循环路径中循环。 引导件投射到球排列构件的两侧，并且沿着无限循环路径的整个圆周形成用于容纳每个引导件的引导槽。 因此，球排列构件被引导槽引入，并且在无限循环路径中循环而不被扑灭。

公开(公告)号：US20090185765A1

公开(公告)日：2009-07-23

申请号：US12306456

申请日：2007-09-26

申请人： Takeki Shirai ,  Shigeru Ebina ,  Shinji Izumi ,  Yuki Hayashi

发明人： Takeki Shirai ,  Shigeru Ebina ,  Shinji Izumi ,  Yuki Hayashi

IPC分类号： F16C29/06

CPC分类号： F16C29/0633 ,  F16C29/0602

摘要： Provided is a linear guidance device in which a track groove (30, 70) serving as an endless circulation path for balls (3) can be formed through cutting or grinding with high precision and with ease at low cost. The linear guidance device includes: a raceway rail (1, 5) provided with a ball rolling groove (10, 50) which is formed on each side surface thereof; and a movement block (2, 6) formed in a channel configuration in which a base portion (20, 60) and a pair of flange portions (21, 61) are provided so that a guide groove (22, 62) is formed, and including the track groove which are provided with the guide groove faced with the raceway rail (1, 5), in which the track groove includes: a load straight-line groove (31, 71) formed in an inner surface of the flange portions; anon-load straight-line groove (32, 72) formed in a concave corner portion of the guide groove which is bordered with the flange portions and the base portion or formed in the base portion so as to be faced with the raceway rail; a ball deflection groove (33, 73) which communicatively couples the load straight-line groove and the non-load straight-line groove to each other so as to allow the balls to move therebetween.

摘要翻译： 提供一种线性引导装置，其中可以通过切削或磨削以高精度和容易地以低成本形成用作滚珠（3）的循环循环路径的轨道槽（30,70）。 线性引导装置包括：轨道轨道（1,5），其设置有形成在其每个侧表面上的滚珠滚动槽（10,50）; 以及形成为沟槽结构的移动块（2,6），其中设置有基部（20,60）和一对凸缘部（21,61），以形成引导槽（22,62） 并且包括设置有面向轨道轨道（1,5）的引导槽的轨道槽，其中轨道槽包括：形成在凸缘部分的内表面中的负载直线槽（31,71） ; 形成在与所述凸缘部和所述基部接合的所述引导槽的凹入角部，或者形成在所述基部中以面向所述轨道轨道的负载直线槽（32,72） 将负载直线槽和非负载直线槽相互连通地连接的球偏转槽（33,73），以使球在其间移动。

公开(公告)号：US6116783A

公开(公告)日：2000-09-12

申请号：US142139

申请日：1998-09-02

申请人： Takeki Shirai ,  Shigeru Ebina ,  Mitsuaki Honma ,  Tomozumi Murata

发明人： Takeki Shirai ,  Shigeru Ebina ,  Mitsuaki Honma ,  Tomozumi Murata

IPC分类号： F16C29/06 ,  F16C33/38 ,  F16C33/41

CPC分类号： F16C29/0657 ,  F16C33/3825 ,  F16C33/416 ,  F16C2220/04

摘要： The present invention relates to a ball chain used by being integrated to, for example, a ball endless track of a linear guide device for endless sliding in which a number of balls are arranged in one row and rollably held, particularly to a ball chain which is most pertinent to a linear guide device having a ball rolling groove in a shape of a Gothic arch. According to the ball chain, the number of balls are arranged in one row and the balls are held rollably, each of the balls is pinched by a pair of spherical seats and the spherical seats are connected to each other by flange portions to thereby constitute a ball holding unit and a plurality of the ball holding units are connected in a shape of a rosary by a flexible connecting portion. Further, the spherical seats and the flange portions are molded by a resin material whereas the connecting portion is formed by a material having a tensile strength larger than that of the resin material.

摘要翻译： PCT No.PCT / JP98 / 00120 Sec。 371日期：1998年9月2日 102（e）1998年9月2日PCT 1998年1月14日PCT PCT。 第WO98 / 31945号公报 日期：1998年7月23日本发明涉及一种球链，其通过集成到例如用于环形滑动的直线导引装置的球环形轨道中，其中多个球排列成一排并且可滚动地保持，特别是 涉及一种与具有哥特式拱形的滚珠滚动槽的直线导向装置最相关的球链。 根据球链，球的数量排成一列，滚珠保持滚动，每个球被一对球形座夹住，球形座通过凸缘部彼此连接从而构成 球保持单元和多个球保持单元通过柔性连接部分连接为念珠的形状。 此外，球形座和凸缘部分由树脂材料模制，而连接部分由具有大于树脂材料的抗拉强度的材料形成。

公开(公告)号：US07600918B2

公开(公告)日：2009-10-13

申请号：US12306456

申请日：2007-09-26

申请人： Takeki Shirai ,  Shigeru Ebina ,  Shinji Izumi ,  Yuki Hayashi

发明人： Takeki Shirai ,  Shigeru Ebina ,  Shinji Izumi ,  Yuki Hayashi

IPC分类号： F16C29/06

CPC分类号： F16C29/0633 ,  F16C29/0602

摘要： Provided is a linear guidance device in which a track groove (30, 70) serving as an endless circulation path for balls (3) can be formed through cutting or grinding with high precision and with ease at low cost. The linear guidance device includes: a raceway rail (1, 5) provided with a ball rolling groove (10, 50) which is formed on each side surface thereof; and a movement block (2, 6) formed in a channel configuration in which a base portion (20, 60) and a pair of flange portions (21, 61) are provided so that a guide groove (22, 62) is formed, and including the track groove which are provided with the guide groove faced with the raceway rail (1, 5), in which the track groove includes: a load straight-line groove (31, 71) formed in an inner surface of the flange portions; a non-load straight-line groove (32, 72) formed in a concave corner portion of the guide groove which is bordered with the flange portions and the base portion or formed in the base portion so as to be faced with the raceway rail; a ball deflection groove (33, 73) which communicatively couples the load straight-line groove and the non-load straight-line groove to each other so as to allow the balls to move therebetween.

摘要翻译： 提供一种线性引导装置，其中可以通过切削或磨削以高精度和容易地以低成本形成用作滚珠（3）的循环循环路径的轨道槽（30,70）。 线性引导装置包括：轨道轨道（1,5），其设置有形成在其每个侧表面上的滚珠滚动槽（10,50）; 以及形成为沟槽结构的移动块（2,6），其中设置有基部（20,60）和一对凸缘部（21,61），以形成引导槽（22,62） 并且包括设置有面向轨道轨道（1,5）的引导槽的轨道槽，其中轨道槽包括：形成在凸缘部分的内表面中的负载直线槽（31,71） ; 形成在与所述凸缘部和所述基部邻接的所述引导槽的凹入角部，或者形成在所述基部中以面对所述轨道轨道的无负载直线槽（32,72） 将负载直线槽和非负载直线槽相互连通地连接的球偏转槽（33,73），以使球在其间移动。

公开(公告)号：US08132477B2

公开(公告)日：2012-03-13

申请号：US12294810

申请日：2007-03-19

申请人： Takeki Shirai ,  Yuji Tachikake ,  Soshi Miyahara ,  Masahiko Yoshino ,  Takashi Sakuyama ,  Lina Teng ,  Tsutomu Togashi

发明人： Takeki Shirai ,  Yuji Tachikake ,  Soshi Miyahara ,  Masahiko Yoshino ,  Takashi Sakuyama ,  Lina Teng ,  Tsutomu Togashi

IPC分类号： F16H1/24 ,  F16H55/02

CPC分类号： F16H25/2214 ,  Y10T74/19749 ,  Y10T74/19767 ,  Y10T74/19772

摘要： A ball screw device having a novel ball circulation structure suitable for a screw shaft with a large lead, optimum for downsizing and weight saving of a nut member, capable of being manufactured at low cost, and capable of exhibiting high reliability even under severe use conditions. In a ball screw device where a screw shaft and a nut member are screwed to each other through an intermediation of a large number of balls, a no-load ball path which forms an infinite circulation path for the balls is constituted by a no-load ball groove spirally formed in an inner peripheral surface of a through-hole of the nut member and by a pair of direction change grooves which communicatively couple a load rolling groove and the no-load ball groove to each other so as to complete the infinite circulation path as a closed loop.

摘要翻译： 一种具有新颖的球形循环结构的滚珠丝杠装置，其适用于具有大引线的螺杆轴，最适于螺母部件的小型化和重量减轻，能够以低成本制造，并且即使在严苛的使用条件下也能够表现出高的可靠性 。 在螺杆轴和螺母构件通过大量球相互联接的滚珠丝杠装置中，形成用于滚珠的无限循环路径的空载滚珠路径由空载构成 在螺母构件的通孔的内周面中螺旋地形成的滚珠槽和通过将负载滚动槽和空载滚珠沟槽彼此连通地连接的一对方向变换槽，以完成无限循环 路径作为闭环。

公开(公告)号：US07296930B2

公开(公告)日：2007-11-20

申请号：US09952030

申请日：2001-09-14

申请人： Akihiro Teramachi ,  Masakazu Uesugi ,  Takeki Shirai

发明人： Akihiro Teramachi ,  Masakazu Uesugi ,  Takeki Shirai

IPC分类号： F16C29/06 ,  F16C29/04

CPC分类号： F16C29/0697

摘要： There are provided a rail (10) in which a rolling member rolling surface (11) is formed along the longitudinal direction, a block (20) in which a loaded rolling member rolling surface (27) is formed in an opening (25) comprising a through hole, a plurality of balls (70) disposed and housed between the rolling member rolling surface (11) and the loaded rolling member rolling surface (27) which circulate according to the relative motion of the rail (10) and the block (20). A sectional shape at right angles to the longitudinal direction of the rail (10) and a sectional shape of the opening (25) are formed into a mutually geometrically similar longitudinal shape. The block (20) is a box type with high rigidity. A contact angle of the ball (70) can be optionally changed by changing the positions alone of the rolling member rolling surface 11 and the loaded rolling member rolling surface (27) to be machined on one type of the block (20) and the rail (10).

摘要翻译： 设置有沿着长度方向形成有滚动体滚动面（11）的轨道（10），在开口（25）中形成有负载滚动体滚动面（27）的块体（20），其包括 通孔，多个滚珠（70），其设置并容纳在所述滚动部件滚动面（11）和所述滚动部件滚动面（27）之间，所述滚动部件滚动面（27）根据所述轨道（10）和所述块体 20）。 与轨道（10）的纵向方向成直角的截面形状和开口（25）的截面形状形成为相互几何相似的纵向形状。 块（20）是具有高刚性的箱型。 可以通过改变滚动件滚动表面11和被加工的加载的滚动件滚动表面（27）在一种类型的块（20）和轨道（20）上的位置来任意地改变球（70）的接触角 （10）。

公开(公告)号：US06700228B2

公开(公告)日：2004-03-02

申请号：US10022265

申请日：2001-12-20

申请人： Akihiro Teramachi ,  Takeki Shirai ,  Kaoru Hoshide

发明人： Akihiro Teramachi ,  Takeki Shirai ,  Kaoru Hoshide

IPC分类号： H02K4500

CPC分类号： F16C29/06 ,  H02K41/02 ,  H02K2201/18

摘要： A linear motor system for a driving apparatus comprises a first linear motor having a primary side to which either one of first and second movable elements which are relatively movable with respect to each other, and a secondary linear motor having a secondary side mounted to this one of first and second movable elements so as to extend in the relatively movable direction to be continuous to the primary side of the first linear motor. The second linear motor has a primary side mounted to another one of the first and second movable elements, and the first linear motor also has a secondary side mounted to the another one of the first and second movable elements so as to extend in the relatively movable direction to be continuous to the primary side of the second linear motor.

摘要翻译： 一种用于驱动装置的线性电动机系统包括：第一线性电动机，其具有初级侧，第一和第二可移动元件中的任一个可相对于彼此相对移动;以及次级侧电动机，其具有安装到该一侧的次级侧 的第一和第二可移动元件，以便在相对移动的方向上延伸以与第一线性电动机的初级侧连续。 第二线性电动机具有安装到第一和第二可移动元件中的另一个的初级侧，并且第一线性电动机还具有安装到第一和第二可移动元件中的另一个的次级侧，以便能够相对移动 方向与第二线性电动机的初级侧连续。

公开(公告)号：US06402381B1

公开(公告)日：2002-06-11

申请号：US09625966

申请日：2000-07-26

申请人： Takeki Shirai ,  Tadashi Hirokawa ,  Akihiro Teramachi

发明人： Takeki Shirai ,  Tadashi Hirokawa ,  Akihiro Teramachi

IPC分类号： F16C2906

CPC分类号： F16C29/0647 ,  B23Q1/015 ,  B23Q1/017 ,  B23Q1/58 ,  B23Q11/0003 ,  F16C29/004 ,  F16C29/005 ,  F16C29/008 ,  F16C2322/39

摘要： A relative linear motion apparatus comprising: a first structure having at least a pair of inner wall surfaces opposing to each other; a second structure arranged between the pair of inner wall surfaces, the second structure being movable in linear motion relative to the first structure; at least two rectilinear guides arranged between the first structure and the second structure; and a displacement absorbing device arranged on at least one of the first structure and the second structure so as to allow at least one of the two rectilinear guides to move in a intersecting direction against the wall surfaces.

摘要翻译： 一种相对直线运动装置，包括：具有至少一对彼此相对的内壁表面的第一结构; 布置在所述一对内壁表面之间的第二结构，所述第二结构可相对于所述第一结构线性运动; 布置在第一结构和第二结构之间的至少两个直线引导件; 以及设置在所述第一结构和所述第二结构中的至少一个上的位移吸收装置，以允许所述两个直线引导件中的至少一个沿着与所述壁表面相交的方向移动。

公开(公告)号：US06390678B1

公开(公告)日：2002-05-21

申请号：US09424831

申请日：1999-12-01

申请人： Takeki Shirai

发明人： Takeki Shirai

IPC分类号： F16C2906

CPC分类号： F16C29/065 ,  F16C33/49 ,  F16C33/506

摘要： The present invention provides a roller connector rotatably retaining a plurality of rollers arranged in a line and capable of being incorporated into an endless roller-circulation path of an endless sliding type linear guide unit and it also provides an improved linear guide unit using such roller connector. The roller connector comprises a plurality of rollers arranged in a row with the axes of rotation of the rollers being held parallel with one another, a plurality of spacers interposed between a plurality of rollers and each provided with a pair of concave seats with which each of the rollers comes into sliding contact and an elongate flexible connecting portion adapted to connect the spacers together and characterized in that the connecting portion is connected to the spacers at a position at which the outer peripheral surface of each of the rollers is divided into two substantially equal parts in the axial direction and that the connecting portion is provided only one side of the line of rollers.

摘要翻译： 本发明提供了一种滚子连接器，其可旋转地保持布置成一行的多个辊，并且能够结合到环形滑动型线性引导单元的环形滚筒循环路径中，并且还提供了一种使用这种滚子连接器的改进的线性引导单元 。 辊连接器包括多个辊，其排列成一列，辊的旋转轴线保持彼此平行，多个间隔件插入在多个辊之间，每个设置有一对凹座， 辊子滑动接触，并且细长的柔性连接部分适于将间隔件连接在一起，其特征在于，连接部分在每个辊的外周表面被分成两个基本相等的位置处连接到间隔件 并且连接部仅设置在辊的一侧。