JPH0289810A - Small direct-acting guide unit - Google Patents
Small direct-acting guide unitInfo
- Publication number
- JPH0289810A JPH0289810A JP23893488A JP23893488A JPH0289810A JP H0289810 A JPH0289810 A JP H0289810A JP 23893488 A JP23893488 A JP 23893488A JP 23893488 A JP23893488 A JP 23893488A JP H0289810 A JPH0289810 A JP H0289810A
- Authority
- JP
- Japan
- Prior art keywords
- ball
- track
- casing
- raceway groove
- center
- 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
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/064—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with two rows of balls, one on each side of the rail
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
- F16C29/0607—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section of parts or members for retaining the rolling elements, i.e. members to prevent the rolling elements from falling out of the bearing body or carriage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、直動案内ユニットに関するもので、長尺状の
トラックレールに転動体としてのボールを介して跨架し
たスライドユニット（ケーシング・側板など）を該トラ
ックレールに沿って転がり運動によって摺動させる構成
のもので、その大きさは手の平に乗るような小形のもの
である。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a linear motion guide unit, in which a slide unit (casing/side plate) is mounted on a long track rail via balls as rolling elements. etc.) is configured to slide along the track rail by rolling motion, and its size is small enough to fit in the palm of your hand.
〔従来の技術１
従来の小形の直動案内ユニットは、断面積が小さいため
ボールの条列は２条列が採用されており、ボールと接触
する軌道溝の形状はゴシックアーチ溝である。この形式
の案内ユニットは、４条列の場合に比べれば、はるかに
空間的ゆとりの有る構成となっているが、それでもボー
ルを保持する空間が少ないため、負荷域でのボールは脱
落方式となっていた。[Prior Art 1] A conventional small linear motion guide unit has a small cross-sectional area, so two rows of balls are used, and the shape of the raceway groove in contact with the balls is a Gothic arch groove. This type of guide unit has a configuration with much more space than a four-row guide unit, but there is still less space to hold the balls, so the balls fall off in the load range. was.
そのため、スライドユニットをトラックレールから取外
すと、ボールはスライドユニットから落ちてしまうとい
う欠点がある。この欠点を補うためにスライドユニット
もトラックレールに組付は後、トラックレールの両端付
近にビン等で突出部（ストッパー）を形成していた。Therefore, there is a drawback that when the slide unit is removed from the track rail, the balls fall off the slide unit. To compensate for this drawback, after the slide unit was assembled to the track rail, protrusions (stoppers) were formed using bottles or the like near both ends of the track rail.
更にボールが脱落するため、ボールの組込み作業がやっ
かいであり、組立作業工数のかかるものとなっていた。Furthermore, since the balls fall off, the work of assembling the balls is troublesome, and the assembly work requires many man-hours.
この対策の一つとして、板状の部材にスリットを形成し
て窓とする保持器を使用するものもあったが、小形で薄
肉のため変形しやすく、摺動時にボールと接触して摺動
抵抗を増大させる問題が生じ、精度的に満足できないも
のであった。One solution to this problem was to use a retainer that uses a plate-like member with slits formed as windows, but because it is small and thin, it easily deforms, and when sliding, it comes into contact with the balls and slides. This resulted in a problem of increased resistance, and the accuracy was unsatisfactory.
〔発明が解決しようとする課題］
本発明はこれらの問題を解決し、ボールを確実に保持す
るとともに、合理的な軌道溝各部の形状によって軌道溝
の高い精度が得られ、ユニットの強度は逆に向上するこ
とができ、断面高さも従来と変化することのないボール
保持方式の小形直動案内ユニットを提供することを課題
としている。[Problems to be Solved by the Invention] The present invention solves these problems, securely holds the ball, and achieves high accuracy of the raceway groove through the rational shape of each part of the raceway groove, and the strength of the unit is reversed. The object of the present invention is to provide a ball-retaining compact linear motion guide unit that can improve the performance of the vehicle and has a cross-sectional height that does not change from the conventional one.
本発明の小形直動案内ユニットは、上記課題を解決する
ための手段として下記の構成を具えている。The small linear motion guide unit of the present invention has the following configuration as a means for solving the above problems.
（１）長尺状のトラックレールの左右側面に各１条の軌
道溝を形成するとともに、これと対向する軌道溝を内側
に有するケーシングが構成するスライドユニットを両軌
道溝間に介在するボールを介して跨架してなるものにお
いて、該両軌道溝とボールとの接触角ａ（ボール中心を
通る垂線に対し軌道溝とボールとの接触点とボール中心
を結ぶ線のなす角）を４５°より大きくしたこと。(1) One raceway groove is formed on each of the left and right side surfaces of a long track rail, and a slide unit constituted by a casing that has opposing raceway grooves on the inside has a ball interposed between both raceway grooves. The contact angle a between both raceway grooves and the ball (the angle formed by the line connecting the contact point between the raceway groove and the ball and the ball center with respect to the perpendicular line passing through the center of the ball) is 45°. Made it bigger.
（２）前記接触角αを約５０°としたこと。(2) The contact angle α was approximately 50°.
（３）前記両軌道溝とボールとの接触角ａが４５°より
大きく形成されたものにおいて、前記ケーシングにおけ
る軌道溝の先端をボール中心を越えてトラックレール側
に形成し、かつ該先端の上端および下端の間隔をボール
径よりわずかに小さく形成したこと。(3) In a device in which the contact angle a between both raceway grooves and the ball is formed to be larger than 45°, the tip of the raceway groove in the casing is formed on the track rail side beyond the center of the ball, and the upper end of the tip and that the interval between the lower ends is made slightly smaller than the ball diameter.
〔作 用Ｊ
本発明においては１両軌道溝とボールとの接触角αを通
常の４５゛を越えて大きく５０゛程度とすることにより
左右方向の負荷容量が大きくなってユニットの強度が増
大するとともに、加工が容易となって軌道溝の精度が向
上する。[Function J] In the present invention, by increasing the contact angle α between both raceway grooves and the ball to about 50°, which exceeds the normal 45°, the load capacity in the lateral direction increases and the strength of the unit increases. At the same time, machining becomes easier and the accuracy of the raceway groove is improved.
また本発明においては、ケーシングにおける軌道溝の先
端をボール中心を越えてトラックレール側に形成し、か
つ該先端の上端および下端の間隔をボール径よりわずか
に小さく形成することによりケーシング軌道内のボール
保持を確実に行わせるとともに、浅くなったトラックレ
ール側の接触面が軌道溝の先端を越えて増加するという
不都合を、接触角αを５０°に近くすることによって、
防止できる。In addition, in the present invention, the tip of the raceway groove in the casing is formed on the track rail side beyond the center of the ball, and the interval between the upper and lower ends of the tip is formed to be slightly smaller than the ball diameter, so that the ball in the casing raceway is In addition to ensuring reliable retention, the inconvenience of the contact surface on the shallower track rail side increasing beyond the tip of the raceway groove can be avoided by making the contact angle α close to 50°.
It can be prevented.
「実 施 例］
第１図は本発明実施の第１例を示す一部切断斜視図であ
る。角柱状のトラックレール３の側面１の一部には、長
平方向に左右各１条列のレール軌道溝２が穿設せされ、
また該トラックレール３に跨架するスライドユニットを
構成するケーシング７があって、軌道溝間に多数挿入さ
れたボール１２を介在している。該ケーシング７には内
周面にボール用のゴシックアーチ状の内側軌道溝５が穿
設されている。Embodiment FIG. 1 is a partially cutaway perspective view showing a first example of implementing the present invention.A part of the side surface 1 of the prismatic track rail 3 has one row each on the left and right in the elongated direction. A rail track groove 2 is bored,
There is also a casing 7 constituting a slide unit that spans the track rail 3, and has a large number of balls 12 inserted between the raceway grooves. The casing 7 has a Gothic arch-shaped inner raceway groove 5 for a ball bored in its inner peripheral surface.
前記スライドユニットには、内側軌道溝５とボール１２
を反転させるリターン路６とが形成されたケーシング７
と、ボール１２を内側軌道溝５がらりターン路６へ導く
方向転換路が形成された側板１１と、スペーサ１６およ
びシール装置などから構成されている。The slide unit has an inner raceway groove 5 and a ball 12.
A casing 7 formed with a return path 6 for reversing the
, a side plate 11 in which a direction change path is formed for guiding the ball 12 from the inner raceway groove 5 to the turn path 6, a spacer 16, a sealing device, and the like.
第２図は第１図の一部切断正面図である。FIG. 2 is a partially cutaway front view of FIG. 1.
ボール１２は軌道溝２，５間で荷重を負荷し、軌道溝か
ら外れたものは側板１１に形成された方向転換路】Ｏに
よってリターン路６へと導がれていく、方向転換路ｌＯ
は側板１１に形成された外周壁面と、スペーサ１６に形
成された方向転換路突出部の内周壁面によって形成され
ている。The balls 12 are loaded between the raceway grooves 2 and 5, and those that come off the raceway are guided to the return path 6 by the direction change path 1O formed on the side plate 11.
is formed by an outer circumferential wall surface formed on the side plate 11 and an inner circumferential wall surface of a turning path protrusion formed on the spacer 16.
軌道溝２．５とリターン路６との関係は、第２図の状態
でリターン路６の方が低い位置に形成されており、ケー
シング７の取付は穴２９（第１図参照）より深く形成で
きるようになっている。また、方向転換路１０は摺動方
向の垂直断面上においても緩やかな円弧で形成されてい
る。The relationship between the raceway groove 2.5 and the return path 6 is such that the return path 6 is formed at a lower position in the state shown in Figure 2, and the casing 7 is installed deeper than the hole 29 (see Figure 1). It is now possible to do so. Further, the direction change path 10 is formed in a gentle arc even on a vertical section in the sliding direction.
第３図は本発明の詳細を示す部分拡大図である。FIG. 3 is a partially enlarged view showing details of the invention.
一般的な軌道溝の加工方法としては、引抜きや鍛造加工
によって、ケーシング７を仕上げ寸法近くまで形成し１
次に該当する内周壁面にブローチ加工によって、ボール
保持部のついた軌道溝５を形成し、さらに該軌道溝５を
研削加工によって仕上げ形成する。A general method for processing raceway grooves is to form the casing 7 to near the finished dimensions by drawing or forging.
Next, a raceway groove 5 with a ball holding portion is formed on the corresponding inner peripheral wall surface by broaching, and the raceway groove 5 is further finished by grinding.
ボール１２と軌道溝２．５との接触点は、ボール中心を
通る垂線に対して、左右２箇所（計４箇所）となってお
り、トラックレール３及びケーシング７に形成された軌
道溝２．５はいわゆるゴシックアーチ満に形成されてい
る。The contact points between the ball 12 and the raceway groove 2.5 are two on the left and right sides (total of four locations) with respect to a perpendicular line passing through the center of the ball, and the contact points between the raceway groove 2. 5 is a so-called Gothic arch.
該垂線からのボール中心を通る接触点までの角度をαで
表わし、これを接触角という、この接触角αは通常４５
°であるが、本発明ではこれを４５°を越＾た値で形成
するものである。αを大ぎくすれば、上下方向の負荷容
量は減少し、逆に左右方向の負荷容量は増加するが、こ
の割合を実際の多くの使用実績から検討した結果、最適
値として５０°付近を採用すべきことが明らかとなった
。The angle from the perpendicular line to the contact point passing through the center of the ball is expressed as α, and this is called the contact angle. This contact angle α is usually 45
However, in the present invention, this is formed at a value exceeding 45°. If α is made too large, the load capacity in the vertical direction will decrease and the load capacity in the horizontal direction will increase, but after examining this ratio based on many actual usage records, we adopted a value around 50° as the optimal value. It became clear what needed to be done.
ケーシング７の軌道溝５の先端部Ａは、ボール中心を越
えてトラックレール３側に突出し、更に軌道溝をせばめ
る方向に突出させたボール保持部を両端に形成する。ボ
ール保持部間の寸法Ａ−Ａをボール径Ｄａよりわずかに
小さく形成して、ケーシング軌道溝内のボール１２の脱
落防止を行なっている。The tip A of the raceway groove 5 of the casing 7 projects beyond the center of the ball toward the track rail 3, and further forms ball holding parts at both ends that protrude in a direction that narrows the raceway groove. The dimension A-A between the ball holding parts is formed to be slightly smaller than the ball diameter Da to prevent the balls 12 from falling off in the casing raceway groove.
ケーシング７例の軌道溝５がボール中心を越えてトラッ
クレール３側に形成されるため、当然トラックレール３
側の軌道溝２の深さは、ケーシング側の軌道溝５よりも
浅くなる。そのため、接触角４５°の場合では大きな外
部荷重が負荷すると、ボール１２との接触面がトラック
レール３側の軌道面２の先端を越えて増加するという問
題が発生したが、本発明では接触面が軌道溝２の底部側
に移動しているため、そのような異常な現象は生じない
。Since the raceway groove 5 of the seven casings is formed on the track rail 3 side beyond the center of the ball, it is natural that the track rail 3
The depth of the raceway groove 2 on the side is shallower than the raceway groove 5 on the casing side. Therefore, in the case of a contact angle of 45°, when a large external load is applied, the contact surface with the ball 12 increases beyond the tip of the track surface 2 on the track rail 3 side, but in the present invention, the contact surface has moved to the bottom side of the raceway groove 2, so such an abnormal phenomenon does not occur.
更に本発明の接触角の変更は、接触点をボール中心を通
る水平線に近づけることになり、軌道溝の研削加工仕上
げを容易に行なうことができ、軌道面を高精度に仕上げ
ることができるという効果もある。Furthermore, the change in the contact angle of the present invention brings the contact point closer to the horizontal line passing through the center of the ball, making it easier to finish the raceway groove by grinding and finishing the raceway surface with high precision. There is also.
第４図は本発明のスペーサ全体を示す斜視図である。FIG. 4 is a perspective view showing the entire spacer of the present invention.
このユニットは小形であるため、方向転換路の内周面が
形成されている部分（方向転換路突出部１８）を単独で
形成した場合、組み立て時の作業性が悪いため、図示の
ように薄肉で方向転換路突出部１８を連結して解決して
いる。（昭和６２年２月実用新案登録出願済）
〔発明の効果］
（１）ケーシング軌道内でのボール保持を確実に行なわ
せることができる。Since this unit is small, if the part where the inner circumferential surface of the direction change path is formed (direction change path protrusion 18) is formed alone, workability during assembly will be poor, so it is thin-walled as shown in the figure. This problem is solved by connecting the turning path protrusions 18. (Application for utility model registration filed in February 1988) [Effects of the invention] (1) Balls can be reliably held within the casing track.
（保持器などの他部材を使う場合よりも保持部の精度が
良い、）
（２）軌道溝とボールとの接触角を４５°よりも大きく
設定することにより、軌道溝の仕上げ加工が容易にでき
る。(The precision of the holding part is better than when using other parts such as a cage.) (2) By setting the contact angle between the raceway groove and the ball larger than 45°, finishing of the raceway groove is easy. can.
（３）さらにユニットとしての負荷特性が、実情に即し
たものとなる。(3) Furthermore, the load characteristics of the unit become more in line with the actual situation.
（第２図の状態で、左右方向の負荷容量が太き（なる、
）
（４）小形直動案内ユニットとして最適な形状となる。(In the state shown in Figure 2, the load capacity in the left and right direction is large (
) (4) It has an optimal shape as a small linear motion guide unit.
４、発明の詳細な説明
図面は本発明実施の１例を示すもので、第１図は一部切
断斜視図、第２図は一部切断正面図、第３図は要部の部
分拡大図、第４図はスペーサの斜視図である。4. Detailed Description of the Invention The drawings show one example of carrying out the invention, and FIG. 1 is a partially cutaway perspective view, FIG. 2 is a partially cutaway front view, and FIG. 3 is a partially enlarged view of the main parts. , FIG. 4 is a perspective view of the spacer.
図中の符号はそれぞれ下記部材を示す。The symbols in the drawings indicate the following members, respectively.
ｌ：側面 ２：レール軌道溝３＝トラツク
レール ４：内側面
５：内側軌道溝 ６：リターン路７：ケーシング
８：端面
：負荷路
：方向転換路
：側板
：ボール
１６：スペーサ
１８＋方向転換路突出部l: Side surface 2: Rail raceway groove 3 = Track rail 4: Inner surface 5: Inner raceway groove 6: Return path 7: Casing 8: End surface: Load path: Direction change path: Side plate: Ball 16: Spacer 18 + direction change path protrusion Department
Claims (1)
溝を形成するとともに、これと対向する軌道溝を内側に
有するケーシングが構成するスライドユニットを両軌道
溝間に介在するボールを介して跨架してなるものにおい
て、該両軌道溝とボールとの接触角α（ボール中心を通
る垂線に対し軌道溝とボールとの接触点とボール中心を
結ぶ線のなす角）を４５°より大きくしたことを特徴と
する小形直動案内ユニット。 ２、前記接触角αを約５０°としたことを特徴とする特
許請求の範囲第１項に記載の小形直動案内ユニット。 ３、前記両軌道溝とボールとの接触角αが４５°より大
きく形成されたものにおいて、前記ケーシングにおける
軌道溝の先端をボール中心を越えてトラックレール側に
形成し、かつ該先端の上端および下端の間隔をボール径
よりわずかに小さく形成したことを特徴とする特許請求
の範囲第１項に記載の小形直動案内ユニット。[Scope of Claims] 1. One raceway groove is formed on each side of the left and right sides of a long track rail, and a slide unit constituted by a casing that has opposing raceway grooves on the inside is arranged between the two raceway grooves. The contact angle α between both raceway grooves and the ball (the contact angle α between the contact point of the raceway groove and the ball and the center of the ball with respect to the perpendicular line passing through the center of the ball) A small linear motion guide unit characterized by a corner) larger than 45°. 2. The small linear motion guide unit according to claim 1, wherein the contact angle α is approximately 50°. 3. In the case where the contact angle α between both raceway grooves and the ball is larger than 45°, the tip of the raceway groove in the casing is formed on the track rail side beyond the center of the ball, and the upper end of the tip and The small linear motion guide unit according to claim 1, wherein the interval between the lower ends is formed to be slightly smaller than the ball diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63238934A JP2697795B2 (en) | 1988-09-26 | 1988-09-26 | Small linear motion guide unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63238934A JP2697795B2 (en) | 1988-09-26 | 1988-09-26 | Small linear motion guide unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0289810A true JPH0289810A (en) | 1990-03-29 |
| JP2697795B2 JP2697795B2 (en) | 1998-01-14 |
Family
ID=17037450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63238934A Expired - Lifetime JP2697795B2 (en) | 1988-09-26 | 1988-09-26 | Small linear motion guide unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2697795B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006022321A1 (en) * | 2004-08-26 | 2006-03-02 | Thk Co., Ltd. | Motion guide device |
| WO2007052678A1 (en) * | 2005-11-01 | 2007-05-10 | Thk Co., Ltd. | Movement guiding device |
| JP2009068650A (en) * | 2007-09-14 | 2009-04-02 | Nsk Ltd | Linear motion actuator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149620A (en) * | 1981-03-12 | 1982-09-16 | Nippon Thompson Co Ltd | Rectilinear motion ball bearing |
| JPS59212518A (en) * | 1983-05-16 | 1984-12-01 | Hiroshi Teramachi | Bearing and table for linear sliding motion |
| JPS63140113A (en) * | 1986-12-03 | 1988-06-11 | Hiroshi Teramachi | Ball bearing for linear sliding |
| JPS63133636U (en) * | 1987-02-23 | 1988-09-01 |
-
1988
- 1988-09-26 JP JP63238934A patent/JP2697795B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149620A (en) * | 1981-03-12 | 1982-09-16 | Nippon Thompson Co Ltd | Rectilinear motion ball bearing |
| JPS59212518A (en) * | 1983-05-16 | 1984-12-01 | Hiroshi Teramachi | Bearing and table for linear sliding motion |
| JPS63140113A (en) * | 1986-12-03 | 1988-06-11 | Hiroshi Teramachi | Ball bearing for linear sliding |
| JPS63133636U (en) * | 1987-02-23 | 1988-09-01 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006022321A1 (en) * | 2004-08-26 | 2006-03-02 | Thk Co., Ltd. | Motion guide device |
| JPWO2006022321A1 (en) * | 2004-08-26 | 2008-05-08 | Thk株式会社 | Exercise guidance device |
| JP4606416B2 (en) * | 2004-08-26 | 2011-01-05 | Ｔｈｋ株式会社 | Exercise guidance device |
| US7980763B2 (en) | 2004-08-26 | 2011-07-19 | Thk Co., Ltd. | Motion guide device |
| WO2007052678A1 (en) * | 2005-11-01 | 2007-05-10 | Thk Co., Ltd. | Movement guiding device |
| US7988360B2 (en) | 2005-11-01 | 2011-08-02 | Thk Co., Ltd. | Motion guide device |
| JP4995729B2 (en) * | 2005-11-01 | 2012-08-08 | Ｔｈｋ株式会社 | Exercise guidance device |
| JP2009068650A (en) * | 2007-09-14 | 2009-04-02 | Nsk Ltd | Linear motion actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2697795B2 (en) | 1998-01-14 |
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