公开(公告)号：US20040232299A1

公开(公告)日：2004-11-25

申请号：US10317119

申请日：2002-12-12

Applicant: NSK LTD.

Inventor： Soichiro Kato ,  Takumi Nakagawa ,  Naoki Inokai ,  Kazuo Kanazawa

IPC: A47H001/10 ,  A47F005/00

CPC classification number: F16C29/0657 ,  F16C29/0664 ,  F16C33/3825 ,  F16C43/06 ,  Y10T29/49641

Abstract: A linear-motion device has: a slider provided onto a guide rail relatively movably; and a plurality of rolling elements for causing the slider to move relatively in a longitudinal direction of the guide rail; whereby the slider comprising a slider block having rolling-element rolling grooves that oppose to rolling- element rolling grooves formed on the guide rail, and end caps that close both-end openings of the rolling-element rolling paths formed between the rolling-element rolling grooves on the slider block and the rolling-element rolling grooves on the guide rail, and rolling-element return paths for returning the rolling elements, which have rolled in the rolling-element rolling paths, are formed on the slider block, wherein the rolling-element return paths comprises a groove portion formed on an outer surface of the slider block along the longitudinal direction of the guide rail, and a cover member for covering the groove portion.

Abstract translation: 线性运动装置具有：相对可移动地设置在导轨上的滑块; 以及多个滚动元件，用于使滑动件在导轨的纵向上相对移动; 由此，具有滑块的滑块具有与形成在导轨上的滚动元件滚动槽相对的滚动元件滚动槽，以及封闭滚动体滚动路径的两端开口的端盖， 在滑动块上形成滑动块上的槽和导轨上的滚动元件滚动槽以及滚动元件滚动路径中滚动的滚动元件返回滚动元件返回路径，其中滚动 - 元件返回路径包括沿着导轨的纵向方向形成在滑动块的外表面上的槽部分和用于覆盖槽部分的盖构件。

公开(公告)号：US20030198409A1

公开(公告)日：2003-10-23

申请号：US10455433

申请日：2003-06-06

Applicant: NSK LTD.

Inventor： Hiroki Yamaguchi ,  Ryoichi Sato ,  Shinichi Kasuga ,  Kenji Kano ,  Soichiro Kato ,  Nobuaki Fujimura

IPC: F16C029/06

CPC classification number: F16C29/0642 ,  F16C19/20 ,  F16C29/0609 ,  F16C33/3706

Abstract: Disclosed is a linear guide device in which a rate of change expressed as nullDmaxnullDminnull, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2nulldx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.

公开(公告)号：US20030128901A1

公开(公告)日：2003-07-10

申请号：US10290211

申请日：2002-11-08

Applicant: NSK LTD.

Inventor： Toshikazu Yabe ,  Soichiro Kato ,  Hiroki Yamaguchi ,  Tatsunobu Momono ,  Juntaro Sahara ,  Hirotoshi Aramaki

IPC: F16C029/06 ,  F16H055/02 ,  F16H001/24 ,  F16C019/00

CPC classification number: F16C33/3706 ,  F16C29/0638 ,  F16H25/2238 ,  F16H2025/2242 ,  Y10T74/19767 ,  Y10T74/19777

Abstract: A linear-motion device has: a linear-motion element fitted on a shaft which moves straight along the shaft; a plurality of balls which are retained in a ball groove formed on the inner side of the linear-motion element and roll over between the ball groove and the shaft; a separator interposed between the balls; and, a circulating path formed in the linear-motion element through which the balls are circulated from one end of the ball groove to the other, which is filled with a grease, wherein the separator is a formed product comprising as a resin component a polybutylene naphthalate-based elastomer formed by a hard segment made of a polybutylene naphthalate and a soft segment made of a polycondensate of 2,6-naphthalanedicarboxylic acid with a polytetramethylene ether glycol.

Abstract translation: 直线运动装置具有：安装在轴上的直线运动元件，该轴线沿轴线直线移动; 保持在形成在直线运动元件的内侧上的滚珠槽中并在滚珠槽和轴之间滚动的多个滚珠; 夹在球之间的分离器; 以及形成在所述直线运动元件中的循环路径，所述线性运动元件通过所述循环路径从所述球槽的一端循环到另一端，所述循环路径填充有润滑脂，其中所述隔板是成形产品，其包含作为树脂成分的聚丁烯 由萘二甲酸丁二醇酯制成的硬链段形成的萘二甲酸乙二醇酯类弹性体和由2,6-萘二羧酸的缩聚物与聚四亚甲基醚二醇构成的软链段。

公开(公告)号：US20030061893A1

公开(公告)日：2003-04-03

申请号：US10283307

申请日：2002-10-30

Applicant: NSK Ltd.

Inventor： Kazuo Miyaguchi ,  Tsutomu Ohkubo ,  Takeshi Nakazawa ,  Shirouji Yabe ,  Soichiro Kato ,  Nobumitsu Takahashi ,  Ryouichi Sato ,  Hiroki Yamaguchi ,  Yoshinori Mizumura

IPC: F16H001/14 ,  F16H001/20

CPC classification number: F16C33/3706 ,  F16C19/20 ,  F16C29/064 ,  F16C33/3713 ,  F16H25/2238 ,  F16H2025/2242 ,  Y10T74/18568 ,  Y10T74/18648 ,  Y10T74/18656 ,  Y10T74/19693 ,  Y10T74/19702 ,  Y10T74/19744 ,  Y10T74/19777 ,  Y10T74/19953

Abstract: In a ball screw device comprising a screw shaft and a nut which make relative movement to each other through a multiplicity of balls, as well as in a linear motion device comprising an outer member and an inner member which make the relative movements to each other through the multiplicity of balls, a spacer having two concave surfaces facing respectively to balls, is disposed between the balls adjacent to each other. A section of each of the concave surfaces of the spacer is formed of two circular arcs of which central positions deviate from each other to form a Gothic arch. The spacer has such a configuration that the balls adjacent to each other come into contact with outer edges thereof or portions vicinal to the outer edges. The spacer also has such a configuration that the balls adjacent to each other come into contact with at least three or more outer edge portions thereof or portions vicinal to the outer edges. The spacer may have a through-hole formed in a thinnest portion thereof.

公开(公告)号：US20040228551A1

公开(公告)日：2004-11-18

申请号：US10712306

申请日：2003-11-14

Applicant: NSK LTD.

Inventor： Toru Tsukada ,  Yutaka Igarashi ,  Soichiro Kato ,  Toshikazu Yabe ,  Fumio Ueki

IPC: F16C033/10 ,  F16C029/06 ,  F16C033/00

CPC classification number: F16C29/086 ,  F16C29/0642 ,  F16C33/6611 ,  F16C33/6622 ,  F16C33/6648

Abstract: In a linear guide apparatus including an axially extending guide rail, a slider engaged with the guide rail, and a plurality of rolling elements loaded into the slider, the linear guide apparatus further includes a sealing device fixed to the slider in slidable contact with the guide rail for sealing a clearance existing between the guide rail and the slider, in which the sealing device includes: a lubricant-containing polymer member formed of a synthetic resin containing a lubricant, and having a contact portion contacting with the guide rail to surround the guide rail, both wing portions, a connecting portion connecting the wing portions to be C-shaped substantially, and a pair of first recesses formed in the respective wing portions for fixing the lubricant-containing polymer member to the slider; a first plate member fitted to the lubricant-containing polymer member opposed to the slider; and a pair of first cylindrical members inserted to the respective first recesses.

Abstract translation: 在包括轴向延伸的导轨，与导轨接合的滑块以及装载到滑块中的多个滚动元件的线性引导装置中，线性引导装置还包括固定到滑块的与导向件滑动接触的密封装置 用于密封存在于导轨和滑块之间的间隙的导轨，其中密封装置包括：由含有润滑剂的合成树脂形成的含润滑剂的聚合物构件，并且具有与导轨接触以包围引导件的接触部分 轨道，两个翼部，将翼部基本上连接成C形的连接部以及形成在各翼部中的一对第一凹部，用于将含润滑剂的聚合物构件固定到滑块; 安装在与滑块相对的含润滑剂的聚合物构件上的第一板构件; 以及插入到各个第一凹部中的一对第一圆柱形构件。

公开(公告)号：US20040213485A1

公开(公告)日：2004-10-28

申请号：US10797109

申请日：2004-03-11

Applicant: NSK LTD.

Inventor： Soichiro Kato ,  Wei Xu

IPC: F16C029/06

CPC classification number: F16C29/065 ,  F16C29/0609 ,  F16C33/3706 ,  F16C33/50

Abstract: A linear guide apparatus has: a guide rail; a slider including a slider body; and a pair of end caps; a guide groove guiding the arm portions of the separators in a circulation direction of the cylindrical rollers when the cylindrical rollers circulate through the pair of the rolling element rolling grooves, the direction change paths, and the rolling element path; and separators each having: a separator body; and an arm portion integrally formed on the separator body, wherein a width of the guide groove is larger than that of the arm portions, the width of the guide groove in a region of each of the direction change paths is larger than that in a region where the cylindrical rollers linearly move, and end portions of each of the arm portions are Chamfered and directed in the circulation direction.

Abstract translation: 线性引导装置具有：导轨; 滑块，其包括滑块体; 和一对端盖; 当所述圆柱滚子通过所述一对滚动元件滚动槽，所述方向改变路径和所述滚动元件路径循环时，引导所述分隔件的臂部在所述圆柱滚子的循环方向上引导; 和分离器，每个分离器具有：分隔体; 以及一体地形成在所述分隔体上的臂部，其中，所述引导槽的宽度大于所述臂部的宽度，所述方向变换路径的区域中的所述引导槽的宽度大于所述方向变换路径的区域的宽度 其中圆柱滚子线性移动，并且每个臂部分的端部在循环方向上倾斜和定向。

公开(公告)号：US20030123762A1

公开(公告)日：2003-07-03

申请号：US10321809

申请日：2002-12-18

Applicant: NSK LTD.

Inventor： Soichiro Kato

IPC: F16C019/00 ,  F16C029/06 ,  F16C029/04

CPC classification number: F16C29/005 ,  F16C29/0633 ,  F16C33/64

Abstract: A linear guide rail has: a rail body, straight-line ball rolling grooves being formed in surfaces of the rail body by form rolling, wherein curved corners are formed at joint portions between the surfaces of the rail body and the ball rolling grooves, the curved corners connecting smoothly the surface of the rail body to that of the ball rolling grooves.

Abstract translation: 直线导轨具有：轨道体，通过成形轧制在轨道主体的表面上形成直线滚珠滚动槽，其中弯曲角形成在轨道体的表面与滚珠滚动槽之间的接合部分处， 弯曲的角部将轨道体的表面平滑地连接到滚珠槽的表面。

公开(公告)号：US20020197131A1

公开(公告)日：2002-12-26

申请号：US10231088

申请日：2002-08-30

Applicant: NSK Ltd.

Inventor： Soichiro Kato ,  Hideyuki Tajimi ,  Yoshinori Mizumura

IPC: F16B035/06 ,  F16B023/00

CPC classification number: F16C29/005 ,  B23Q1/0054 ,  B23Q1/26 ,  F16B5/025 ,  F16C29/004 ,  F16C29/06 ,  F16C29/0633

Abstract: A mounting structure is provided for mounting a member to be fixed, on a stationary member, while always accomplishing high position precision even in such cases of fastening of members that a tightening work of bolt is carried out several times, that the members are fixed after repetition of fine adjustment of the fixing position of the member to be fixed, and so on. A screw hole for fixing according to the present invention is shaped so that on a fixing surface of the stationary member provided with the screw hole a region of an annular recess is continuous from the screw hole and annular in the external edge part of the opening portion of the screw hole, and so that when an inside diameter of the through hole in the fastened member is nulla and a nominal diameter of the screw hole is b, a width c of the recess in the radial direction of the screw hole satisfies the relation of 0.5null(nullanullb)

Abstract translation: 即使在螺栓的紧固工作进行了几次的部件的紧固的情况下，即使在螺栓的紧固工作进行了几次之后，也可以将固定部件固定在固定部件上，同时始终实现高位置精度，安装结构， 重复要固定的构件的固定位置的微调，等等。 根据本发明的用于固定的螺纹孔被成形为使得在设置有螺纹孔的固定构件的固定表面上，环形凹部的区域从螺纹孔连续并且在开口部分的外缘部分中是环形的 并且当紧固构件中的通孔的内径为phia并且螺孔的公称直径为b时，螺纹孔径向的凹部的宽度c满足关系式 为0.5x（phia-b）

公开(公告)号：US20020025087A1

公开(公告)日：2002-02-28

申请号：US09898079

申请日：2001-07-05

Applicant: NSK LTD.

Inventor： Hiroki Yamaguchi ,  Ryoichi Sato ,  Shinichi Kasuga ,  Kenji Kano ,  Soichiro Kato ,  Nobuaki Fujimura

IPC: F16C029/06

CPC classification number: F16C29/0642 ,  F16C19/20 ,  F16C29/0609 ,  F16C33/3706

Abstract: Disclosed is a linear guide device in which a rate of change expressed as nullDmaxnullDminnull, becomes extremely small where Dmax and Dmin are respectively a local maximum and a local minimum of D, expressed as (dx2nulldx1)/dx, which is produced when a steel ball B moves a distance corresponding to a rolling element-to-rolling element span, dx1 is a minute movement quantity of a steel ball B when it moves from one space defined between rolling element rolling grooves 3 and 31 of an element endless circulating raceway 7, to one of curved element circulating R parts 6, and dx2 is a minute movement quantity of another steel ball B when it moves from the other curved element circulating R part 6 to the space while the former steel ball is moved by the minute movement quantity dx1.

Abstract translation: 公开了其中Dmax和Dmin分别表示为（dx2-dx1）/ dx的Dmax和Dmin分别为局部最大值和D的局部最小值的表示为“Dmax-Dmin”的变化率变得非常小的线性引导装置，其中 当钢球B移动对应于滚动元件到滚动元件跨度的距离时，dx1是钢球B在从滚珠元件滚动元件的滚动元件滚动槽3和31之间限定的一个空间移动时的微小移动量 元件环形循环轨道7，到弯曲元件循环R部分6中的一个，并且dx2是当另一个钢球B从另一个循环R部分6的弯曲元件移动到空间而当前钢球移动时的微小移动量 通过分钟移动量dx1。

公开(公告)号：US20040149059A1

公开(公告)日：2004-08-05

申请号：US10763186

申请日：2004-01-26

Applicant: NSK LTD.

Inventor： Toru Tsukada ,  Soichiro Kato

IPC: F16N001/00

CPC classification number: F16H25/2418 ,  F16H25/2204 ,  F16H57/0406 ,  F16H57/0497 ,  Y10T74/1527 ,  Y10T74/18712 ,  Y10T74/18744 ,  Y10T74/19702 ,  Y10T74/19744 ,  Y10T74/19991

Abstract: A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.