JPH10281254A - Sealing type seal for ball screw - Google Patents
Sealing type seal for ball screwInfo
- Publication number
- JPH10281254A JPH10281254A JP3149697A JP3149697A JPH10281254A JP H10281254 A JPH10281254 A JP H10281254A JP 3149697 A JP3149697 A JP 3149697A JP 3149697 A JP3149697 A JP 3149697A JP H10281254 A JPH10281254 A JP H10281254A
- Authority
- JP
- Japan
- Prior art keywords
- seal
- screw shaft
- peripheral surface
- screw
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ボールねじの外周
面を密封するボールねじ用密封形シールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic seal for a ball screw for sealing the outer peripheral surface of a ball screw.
【０００２】[0002]
【従来の技術】回転運動を直線運動に変換する機構とし
て、ボールねじ機構が知られている。ボールねじ機構
は、雄ねじを備えたねじ軸の外周に、雌ねじを備えたナ
ット（雌ねじ部材）を螺合させ、ねじ軸を回転させるこ
とにより、ナットを軸線方向へと移動させるものであ
る。2. Description of the Related Art A ball screw mechanism is known as a mechanism for converting a rotary motion into a linear motion. In the ball screw mechanism, a nut (female screw member) having a female screw is screwed onto the outer periphery of a screw shaft having a male screw, and the nut is moved in the axial direction by rotating the screw shaft.
【０００３】かかるボールねじ機構の一例として、図５
により循環チューブ方式のボールねじ機構の全体構成を
説明する。図において、一部のみ示すねじ軸１は、溝断
面が円弧状である螺旋溝１ａを外周に有する軸部材であ
る。ナット２は、ねじ軸１の螺旋溝１ａに対応する螺旋
溝２ａを内周に有する円筒状の部材である。図示されて
いないが、ナット２の上面から螺旋溝２ａまで延在する
２つの貫通孔が形成され、かかる貫通孔に、仮想線で示
すようにＵ字形のボール循環チューブ４の両端部がそれ
ぞれ嵌挿されている。FIG. 5 shows an example of such a ball screw mechanism.
The overall configuration of the circulation tube type ball screw mechanism will be described with reference to FIG. In the figure, a screw shaft 1 only partially shown is a shaft member having a spiral groove 1a having a circular arc cross section on the outer periphery. The nut 2 is a cylindrical member having a spiral groove 2a on the inner periphery corresponding to the spiral groove 1a of the screw shaft 1. Although not shown, two through-holes extending from the upper surface of the nut 2 to the spiral groove 2a are formed, and both ends of the U-shaped ball circulation tube 4 are fitted into these through-holes as indicated by phantom lines. Has been inserted.
【０００４】ナット２の内部に挿通されたねじ軸１は、
その螺旋溝１ａがナットの螺旋溝２ａと対向するように
され、かかる溝内には多数のボール３が転動自在に収納
されている。[0004] The screw shaft 1 inserted into the nut 2
The spiral groove 1a is opposed to the spiral groove 2a of the nut, and a number of balls 3 are rollably accommodated in the groove.
【０００５】ナット２とねじ軸１とが相対螺旋運動を行
うと、ボール３は螺旋溝１ａ、２ａ間の転走路に沿って
転動し、ボール循環チューブ４の端部に形成されたタン
グ部（不図示）に案内されて転走路からすくい上げら
れ、ボール循環チューブ４内に導かれ、そのチューブ内
を通って反対端より転走路に戻るという循環を繰り返
す。When the nut 2 and the screw shaft 1 make a relative spiral movement, the ball 3 rolls along the rolling path between the spiral grooves 1a, 2a, and a tongue formed at the end of the ball circulation tube 4. (Not shown), it is scooped up from the rolling path, guided into the ball circulation tube 4, and repeats a cycle of returning to the rolling path from the opposite end through the tube.
【０００６】ナット２における内孔において、その軸線
方向のねじ軸挿入口には、密封形シール５が配置され、
外部からナット２内への塵芥等の異物の侵入を防止して
いる。シール５は、リテーナ６によりナット２に取り付
けられている。In the inner hole of the nut 2, a hermetic seal 5 is disposed at a screw shaft insertion port in the axial direction thereof,
Foreign matter such as dust is prevented from entering the nut 2 from outside. The seal 5 is attached to the nut 2 by a retainer 6.
【０００７】[0007]
【解決しようとする課題】しかしながら、かかるボール
ねじ機構においてはねじ軸１の外周に螺旋溝１ａが形成
されているので、ナット２とねじ軸１との間を密封する
ことには、以下に述べるような問題がある。However, in such a ball screw mechanism, since the spiral groove 1a is formed on the outer periphery of the screw shaft 1, sealing between the nut 2 and the screw shaft 1 will be described below. There is such a problem.
【０００８】例えば、完全な円筒軸をシールにより密封
する場合には、円筒軸に当接する薄板状のシール片の開
口形状を円形とすることにより、円筒軸とシール片との
当接状態は全周において一様となり、密封は比較的容易
に達成される。しかしながら、ねじ軸には外周に螺旋溝
が形成されているために、軸線に直角な面でねじ軸を切
断すると、その切断面は円形とならない。従って、単純
な円形開口を有するシール片でかかるねじ軸を密封する
ことは一般的には困難といえる。For example, when a complete cylindrical shaft is sealed by a seal, the contact between the cylindrical shaft and the seal piece is completely reduced by making the opening shape of the thin plate-shaped seal piece in contact with the cylindrical shaft into a circular shape. The circumference is uniform and sealing is relatively easily achieved. However, since a spiral groove is formed on the outer periphery of the screw shaft, when the screw shaft is cut at a plane perpendicular to the axis, the cut surface does not become circular. Therefore, it is generally difficult to seal such a screw shaft with a seal piece having a simple circular opening.
【０００９】そこで通常、例えば実開平３−１１７１４
７号公報に示すように、シール片の開口形状をねじ軸の
断面形状に対応した非円形としたシールを用いて、ねじ
軸を密封するようにしている。このような従来技術によ
るシールの一例を図６、７に示す。図６は、従来技術に
よるシールの正面図であり、図７は図６のシールをＶＩ
Ｉ−ＶＩＩ線で切断して矢印方向に見た図である。なお
理解を容易とすべく、シールは樹脂の平板からなってい
るものとする。Therefore, for example, Japanese Utility Model Laid-Open Publication No.
As disclosed in Japanese Patent Application Laid-open No. 7, the screw shaft is hermetically sealed using a non-circular seal having an opening shape of the seal piece corresponding to the cross-sectional shape of the screw shaft. An example of such a prior art seal is shown in FIGS. FIG. 6 is a front view of a seal according to the prior art, and FIG.
It is the figure cut | disconnected by the I-VII line and seen in the arrow direction. It is assumed that the seal is made of a resin flat plate for easy understanding.
【００１０】図６において、シール５は開口５ａを有
し、かかる開口５ａをねじ軸１の外周に当接させるよう
にして不図示のナットに取り付けられている。なお、図
６の波線１ｂはねじ軸１の外周形状を示し、波線１ｃは
ねじ軸１のねじ溝底形状を示している。In FIG. 6, the seal 5 has an opening 5a, and is attached to a nut (not shown) such that the opening 5a contacts the outer periphery of the screw shaft 1. In addition, the wavy line 1b of FIG. 6 shows the outer peripheral shape of the screw shaft 1, and the wavy line 1c shows the screw groove bottom shape of the screw shaft 1.
【００１１】図６，７から明らかなように、シール５の
開口５ａは、図に示す最上部でねじ溝の溝底１ｃに当接
し最も内方に突出しており、一方図に示す最下部でねじ
軸の円筒部（最大外径部）１ｂに当接し最も外方に退避
した形状となっている。従って、開口５ａのそれ以外の
部分は、相対角度に応じねじ軸１の円筒部若しくはねじ
溝のいずれかの部位に当接する寸法を有する。As is apparent from FIGS. 6 and 7, the opening 5a of the seal 5 abuts against the groove bottom 1c of the thread groove at the uppermost part shown in the figure and projects most inward, while the lowermost part shown in the figures. It has a shape in which it comes into contact with the cylindrical portion (maximum outer diameter portion) 1b of the screw shaft and retracts most outward. Therefore, the other portion of the opening 5a has a dimension that abuts on either the cylindrical portion of the screw shaft 1 or the screw groove according to the relative angle.
【００１２】ここで、密封性を高めるためシール５から
ねじ軸１に所定の弾性力を印加すべく、シール５は可撓
性の材質からなり、かつその開口５ａはねじ軸１の断面
形状よりわずかに小さな寸法を有している。従って開口
５ａの内周には、ねじ軸１との当接時に弾性変形が生じ
る。しかしながら、従来技術によるシール５は、平板若
しくは積層平板からなっているので、ねじ軸の外形状に
適合するように撓みにくいと言う問題がある。より具体
的には、図６，７に示すように、シール５は、最上部で
はねじ溝の溝底１Ｃに当接し、最下部ではねじ軸の最大
外径部に当接するようになっており、当接する部位によ
ってはシールの撓みの方向が反転することがあるが、そ
の場合、平板又は積層平板からなるシールでは撓みの方
向を管理しにくいため、シールの密封機能を十分確保で
きない恐れがある。Here, in order to apply a predetermined elastic force from the seal 5 to the screw shaft 1 in order to enhance the sealing performance, the seal 5 is made of a flexible material. Has slightly smaller dimensions. Therefore, the inner periphery of the opening 5a undergoes elastic deformation when it comes into contact with the screw shaft 1. However, since the seal 5 according to the prior art is made of a flat plate or a laminated flat plate, there is a problem that it is difficult to bend to conform to the outer shape of the screw shaft. More specifically, as shown in FIGS. 6 and 7, the seal 5 comes into contact with the groove bottom 1 </ b> C of the screw groove at the uppermost part and with the maximum outer diameter part of the screw shaft at the lowermost part. In some cases, the direction of bending of the seal may be reversed depending on the contacting part, but in this case, it is difficult to control the direction of bending with a seal made of a flat plate or a laminated flat plate, so that the sealing function of the seal may not be sufficiently secured. .
【００１３】これに対し、シール片をねじ軸の軸線方向
に傾けてねじ軸に当接させるようになっているシールが
提案されている。図８は、かかるシールの一部拡大軸線
方向断面図であり、図９は、図８のシール５のシール片
５ｄのみを更に拡大した図である。なお、シール片５ｄ
は、水平線に対して稜線５ｅを境として左側面が角度α
だけ傾斜し、右側面が角度βだけ傾斜しているものとす
る。On the other hand, there has been proposed a seal in which the seal piece is inclined in the axial direction of the screw shaft so as to abut on the screw shaft. FIG. 8 is a partially enlarged axial sectional view of the seal, and FIG. 9 is an enlarged view of only the seal piece 5d of the seal 5 in FIG. In addition, the seal piece 5d
Is the angle of the left side of the ridge line 5e with respect to the horizontal line.
And the right side surface is inclined by the angle β.
【００１４】図８において点線は、シール５とねじ軸１
との相対角度に応じて変位する、ねじ軸１に当接するシ
ール５のシール片５ｄの位置（５Ａないし５Ｇ）を示し
ている。ここで、密封機能を確保するためには、ねじ軸
１の全周にシール片５ｄの稜線５ｅを線接触（図８，９
に示すごとき二次元的には点接触）させる必要がある。In FIG. 8, a dotted line indicates the seal 5 and the screw shaft 1.
The position (5A to 5G) of the seal piece 5d of the seal 5 that comes into contact with the screw shaft 1 and that is displaced in accordance with the relative angle with the screw shaft 1 is shown. Here, in order to secure the sealing function, the ridge line 5e of the sealing piece 5d is line-contacted with the entire circumference of the screw shaft 1 (FIGS. 8 and 9).
It is necessary to make two-dimensional point contact as shown in (2).
【００１５】しかるに、シール片５ｄが位置５Ａ、５
Ｃ、５Ｄ、５Ｆにあるときには、稜線５ｅはねじ軸１に
線（点）接触するものの、位置５Ｂ、５Ｆにあるときに
は、稜線５ｅが当接する前に、左側面５ｆ又は右側面５
ｇがねじ軸１に当接してしまう。このような不安定な状
態での当接は、シール５の密封機能を低下させるおそれ
がある。However, when the sealing piece 5d is at the position 5A, 5
C, 5D, and 5F, the ridge line 5e makes a line (point) contact with the screw shaft 1. However, when the ridge line 5e is at the position 5B, 5F, the left side surface 5f or the right side surface 5
g comes into contact with the screw shaft 1. The contact in such an unstable state may reduce the sealing function of the seal 5.
【００１６】このような問題点に鑑み、本願発明は、安
価でありながら十分なる密封機能を発揮できるボールね
じ用密封形シールを提供することを目的とする。In view of these problems, an object of the present invention is to provide a hermetically sealed seal for a ball screw which is inexpensive and can exhibit a sufficient sealing function.
【００１７】[0017]
【課題を解決するための手段】上述の目的を達成すべ
く、本願発明のボールねじ用密封形シールは、雌ねじ部
材に螺合するボールねじのねじ軸の周面を密封するシー
ルにおいて、前記雌ねじ部材に取り付けられる取付部
と、前記取付部から延在し、前記ボールねじのねじ軸の
周面に当接することにより所定の弾性力を前記周面に付
与するシール片とからなり、前記シール片は、前記ボー
ルねじのねじ軸の周面に当接する当接領域を有し、前記
当接領域は、前記ボールねじのねじ軸の周面との当接位
置に応じて、前記シール片上を変移するようになってお
り、それにより前記当接位置に関わらず、前記周面と前
記シール片との当接関係は一定に維持されるようになっ
ている。In order to achieve the above object, a sealed seal for a ball screw according to the present invention is a seal for sealing a peripheral surface of a screw shaft of a ball screw screwed into a female screw member. A seal portion that is attached to the member, and a seal piece that extends from the mount portion and applies a predetermined elastic force to the peripheral surface by contacting the peripheral surface of the screw shaft of the ball screw; Has a contact area in contact with the peripheral surface of the screw shaft of the ball screw, and the contact area shifts on the seal piece according to a contact position with the peripheral surface of the screw shaft of the ball screw. Therefore, regardless of the contact position, the contact relationship between the peripheral surface and the seal piece is kept constant.
【００１８】[0018]
【作用】本願発明によれば、前記シール片が、前記ボー
ルねじのねじ軸の周面に当接する当接領域を有し、前記
当接領域は、前記ボールねじのねじ軸の周面との当接位
置に応じて、前記シール片上を変移するようになってお
り、それにより前記当接位置に関わらず、前記周面と前
記シール片との当接関係は一定に維持されるようになっ
ているので、かかるシールの十分な密封機能が確保され
るのである。According to the present invention, the seal piece has a contact area in contact with the peripheral surface of the screw shaft of the ball screw, and the contact area is in contact with the peripheral surface of the screw shaft of the ball screw. The seal piece is shifted on the seal piece in accordance with the contact position, so that the contact relationship between the peripheral surface and the seal piece is kept constant regardless of the contact position. Therefore, a sufficient sealing function of such a seal is ensured.
【００１９】[0019]
【発明の実施の形態】図１は、本発明の実施の形態であ
るシール１５の正面図である。図２は、図１のシール１
５をＩＩ−ＩＩ線で切断して矢印方向に見た図である。
シール１５は、円板状のシール本体１５ｃと、シール本
体１５ｃから内方に延在する類似円錐形状（左方に傾斜
した形状）のシール片１５ｄとからなる。シール片１５
ｄは、その内方縁に環状円筒部１５ｂを形成している。FIG. 1 is a front view of a seal 15 according to an embodiment of the present invention. FIG. 2 shows the seal 1 of FIG.
FIG. 5 is a diagram cut along line II-II and viewed in the direction of the arrow.
The seal 15 includes a disc-shaped seal body 15c and a similar conical (leftwardly inclined) seal piece 15d extending inward from the seal body 15c. Seal piece 15
"d" forms an annular cylindrical portion 15b on the inner edge thereof.
【００２０】環状円筒部１５ｂの内側は、ねじ軸１の断
面形状に対応した開口１５ａとなっている。外周を不図
示のナットに取り付ける取付け部であるシール本体１５
ｃと、シール片１５ｄと、環状円筒部１５ｂは、耐摩耗
性及び可撓性を有する樹脂又はゴムから一体形成されて
いる。The inside of the annular cylindrical portion 15b is an opening 15a corresponding to the cross-sectional shape of the screw shaft 1. Seal body 15 which is an attachment portion for attaching an outer periphery to a nut (not shown)
c, the sealing piece 15d, and the annular cylindrical portion 15b are integrally formed from a resin or rubber having wear resistance and flexibility.
【００２１】図３は、本実施の形態にかかるシール１５
の一部拡大軸線方向断面図であり、図４は、図３のシー
ル１５の環状円筒部１５ｂを更に拡大し、ねじ溝（点
線）との当接状態を示し図である。なお、環状円筒部１
５ｂは、図に示すように断面が円形であるＯ−リングの
ような形状を有する。FIG. 3 shows a seal 15 according to the present embodiment.
FIG. 4 is a partially enlarged sectional view in the axial direction, and FIG. 4 is a view further illustrating the annular cylindrical portion 15b of the seal 15 in FIG. In addition, the annular cylindrical portion 1
5b has a shape like an O-ring having a circular cross section as shown in the figure.
【００２２】図３において点線は、シール１５とねじ軸
１との相対角度に応じて変位する、ねじ軸１に当接する
シール１５の環状円筒部１５ｂの位置（１５Ａないし１
５Ｇ）を示している。図４から明らかなように、環状円
筒部１５ｂの当接点１５ｅ（当接領域）は、ねじ軸１の
周面に当接する位置に応じて、環状円筒部１５ｂ上を変
移する。In FIG. 3, the dotted line indicates the position (15A to 1A) of the annular cylindrical portion 15b of the seal 15 abutting on the screw shaft 1, which is displaced in accordance with the relative angle between the seal 15 and the screw shaft 1.
5G). As is clear from FIG. 4, the contact point 15 e (contact area) of the annular cylindrical portion 15 b shifts on the annular cylindrical portion 15 b according to the position where it contacts the peripheral surface of the screw shaft 1.
【００２３】即ち、ねじ軸１の何れの周面に環状円筒部
１５ｂが当接しても、図４に示すように当接面の法線は
必ず環状円筒部１５ｂの断面中心を通過する。従って、
当接位置に関わらず、シール１５とねじ軸１との当接関
係は一定に維持されることになり、もって密封機能を確
保できることとなる。また、例えば図８に示す従来技術
のシール５であれば、稜線５ｅが当接する前に、左側面
５ｆ又は右側面５ｇがねじ軸１に当接してしまうような
不安定な当接を招来する恐れがあるが、本実施の形態に
よれば、何れの位置にあっても、常に環状円筒部１５ｂ
がねじ軸周面に当接するので、それにより安定したシー
ルの密封機能を確保できる。That is, no matter which peripheral surface of the screw shaft 1 is in contact with the annular cylindrical portion 15b, the normal of the contact surface always passes through the center of the cross section of the annular cylindrical portion 15b as shown in FIG. Therefore,
Regardless of the abutting position, the abutting relationship between the seal 15 and the screw shaft 1 is kept constant, so that the sealing function can be ensured. In addition, for example, in the case of the seal 5 of the related art illustrated in FIG. 8, an unstable contact is caused such that the left side surface 5 f or the right side surface 5 g abuts on the screw shaft 1 before the ridge line 5 e abuts. Although there is a danger, according to this embodiment, the annular cylindrical portion 15b is always located in any position.
Abuts against the peripheral surface of the screw shaft, thereby ensuring a stable sealing function of the seal.
【００２４】以上、本発明を実施の形態を参照して説明
してきたが、本発明は上記実施の形態に限定して解釈さ
れるべきではなく、適宜変更・改良が可能であることは
もちろんである。例えば、環状円筒部の断面を円形とし
たが、半円としても良い。As described above, the present invention has been described with reference to the embodiments. However, the present invention should not be construed as being limited to the above embodiments, and it is needless to say that modifications and improvements can be made as appropriate. is there. For example, the cross section of the annular cylindrical portion is circular, but may be a semicircle.
【００２５】[0025]
【発明の効果】本願発明によれば、シールのシール片
が、ボールねじのねじ軸の周面に当接する当接領域を有
し、前記当接領域は、前記ボールねじのねじ軸の周面と
の当接位置に応じて、前記シール片上を変移するように
なっており、それにより前記当接位置に関わらず、前記
周面と前記シール片との当接関係は一定に維持されるよ
うになっているので、かかるシールの十分な密封機能が
確保されるのである。According to the present invention, the seal piece of the seal has a contact area in contact with the peripheral surface of the screw shaft of the ball screw, and the contact area is formed on the peripheral surface of the screw shaft of the ball screw. The seal piece is adapted to move on the seal piece in accordance with the contact position, so that the contact relationship between the peripheral surface and the seal piece is maintained constant regardless of the contact position. Therefore, a sufficient sealing function of such a seal is ensured.
【図１】本発明の実施の形態であるシール１５の正面図
である。FIG. 1 is a front view of a seal 15 according to an embodiment of the present invention.
【図２】図１のシール１５をＩＩ−ＩＩ線で切断して矢
印方向に見た図である。FIG. 2 is a view of the seal 15 of FIG. 1 cut along a line II-II and viewed in a direction of an arrow.
【図３】本実施の形態にかかるシール１５の一部拡大軸
線方向断面図である。FIG. 3 is a partially enlarged axial sectional view of the seal 15 according to the embodiment.
【図４】図３のシール１５の環状円筒部１５ｂを更に拡
大した図である。4 is an enlarged view of an annular cylindrical portion 15b of the seal 15 of FIG.
【図５】循環チューブ方式のボールねじ機構の全体構成
の軸線方向断面図である。FIG. 5 is an axial sectional view of the entire configuration of the circulation tube type ball screw mechanism.
【図６】従来技術によるシールの正面図である。FIG. 6 is a front view of a seal according to the prior art.
【図７】図６のシールをＶＩＩ−ＶＩ線で切断して矢印
方向に見た図である。FIG. 7 is a view of the seal of FIG. 6 cut along a line VII-VI and viewed in a direction of an arrow.
【図８】他の従来技術によるシールの一部拡大軸線方向
断面図である。FIG. 8 is a partially enlarged axial sectional view of another conventional seal.
【図９】図８のシール５のシール片５ｄのみを更に拡大
した図である。9 is a diagram further enlarging only the seal piece 5d of the seal 5 of FIG.
１ ねじ軸 １５ シール １５ｂ 環状円筒部 1 Screw shaft 15 Seal 15b Annular cylindrical part
Claims (1)
軸の周面を密封するシールにおいて、 前記雌ねじ部材に取り付けられる取付部と、 前記取付部から延在し、前記ボールねじのねじ軸の周面
に当接することにより所定の弾性力を前記周面に付与す
るシール片とからなり、 前記シール片は、前記ボールねじのねじ軸の周面に当接
する当接領域を有し、 前記当接領域は、前記ボールねじのねじ軸の周面との当
接位置に応じて、前記シール片上を変移するようになっ
ており、それにより前記当接位置に関わらず、前記周面
と前記シール片との当接関係は一定に維持されるように
なっているボールねじ用密封形シール。1. A seal for sealing a peripheral surface of a screw shaft of a ball screw screwed into a female screw member, comprising: a mounting portion mounted to the female screw member; A seal piece that applies a predetermined elastic force to the peripheral surface by contacting the peripheral surface, wherein the seal piece has a contact area that contacts a peripheral surface of a screw shaft of the ball screw; The contact area shifts on the seal piece according to the contact position of the ball screw with the peripheral surface of the screw shaft, so that the peripheral surface and the seal are irrespective of the contact position. Sealed seal for ball screws that keeps the contact with the piece constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03149697A JP3646452B2 (en) | 1997-01-31 | 1997-01-31 | Seal for ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03149697A JP3646452B2 (en) | 1997-01-31 | 1997-01-31 | Seal for ball screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10281254A true JPH10281254A (en) | 1998-10-23 |
| JP3646452B2 JP3646452B2 (en) | 2005-05-11 |
Family
ID=12332863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03149697A Expired - Lifetime JP3646452B2 (en) | 1997-01-31 | 1997-01-31 | Seal for ball screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3646452B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230619A (en) * | 1999-02-12 | 2000-08-22 | Sakagami Seisakusho Ltd | Seal member for ball screw device |
| JP2002070979A (en) * | 2000-08-25 | 2002-03-08 | Nsk Ltd | Seal for ball screw |
| JP2002188704A (en) * | 2000-12-22 | 2002-07-05 | Thk Co Ltd | Finite stroke ball screw device |
| JP2007211858A (en) * | 2006-02-08 | 2007-08-23 | Nsk Ltd | Ball screw device |
| JP2010007851A (en) * | 2008-05-29 | 2010-01-14 | Nsk Ltd | Ball screw |
| JP2011169378A (en) * | 2010-02-17 | 2011-09-01 | Nsk Ltd | Method for manufacturing seal member |
| JP2011169377A (en) * | 2010-02-17 | 2011-09-01 | Nsk Ltd | Seal member, ball screw having seal member, and method for manufacturing seal member |
| JP2012037063A (en) * | 2011-11-25 | 2012-02-23 | Nsk Ltd | Linear screw device |
| JP2012159121A (en) * | 2011-01-31 | 2012-08-23 | Nsk Ltd | Contact seal for ball screw and ball screw |
| JP2012241750A (en) * | 2011-05-17 | 2012-12-10 | Nsk Ltd | Ball screw |
-
1997
- 1997-01-31 JP JP03149697A patent/JP3646452B2/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000230619A (en) * | 1999-02-12 | 2000-08-22 | Sakagami Seisakusho Ltd | Seal member for ball screw device |
| JP4507368B2 (en) * | 2000-08-25 | 2010-07-21 | 日本精工株式会社 | Ball screw seal, ball screw |
| JP2002070979A (en) * | 2000-08-25 | 2002-03-08 | Nsk Ltd | Seal for ball screw |
| JP2002188704A (en) * | 2000-12-22 | 2002-07-05 | Thk Co Ltd | Finite stroke ball screw device |
| JP4662396B2 (en) * | 2000-12-22 | 2011-03-30 | Ｔｈｋ株式会社 | Finite stroke ball screw device |
| JP2007211858A (en) * | 2006-02-08 | 2007-08-23 | Nsk Ltd | Ball screw device |
| JP2010007851A (en) * | 2008-05-29 | 2010-01-14 | Nsk Ltd | Ball screw |
| JP2012149777A (en) * | 2008-05-29 | 2012-08-09 | Nsk Ltd | Ball screw |
| JP2011169378A (en) * | 2010-02-17 | 2011-09-01 | Nsk Ltd | Method for manufacturing seal member |
| JP2011169377A (en) * | 2010-02-17 | 2011-09-01 | Nsk Ltd | Seal member, ball screw having seal member, and method for manufacturing seal member |
| JP2012159121A (en) * | 2011-01-31 | 2012-08-23 | Nsk Ltd | Contact seal for ball screw and ball screw |
| JP2012241750A (en) * | 2011-05-17 | 2012-12-10 | Nsk Ltd | Ball screw |
| JP2012037063A (en) * | 2011-11-25 | 2012-02-23 | Nsk Ltd | Linear screw device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3646452B2 (en) | 2005-05-11 |
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