JP4232389B2 - Linear guide device - Google Patents

Linear guide device Download PDF

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Publication number
JP4232389B2
JP4232389B2 JP2002157489A JP2002157489A JP4232389B2 JP 4232389 B2 JP4232389 B2 JP 4232389B2 JP 2002157489 A JP2002157489 A JP 2002157489A JP 2002157489 A JP2002157489 A JP 2002157489A JP 4232389 B2 JP4232389 B2 JP 4232389B2
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Japan
Prior art keywords
side seal
rolling
slider
rolling element
guide rail
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JP2002157489A
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JP2003343558A (en
Inventor
健司 狩野
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NSK Ltd
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NSK Ltd
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    • 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
    • F16C29/08—Arrangements for covering or protecting the ways
    • F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
    • F16C29/086—Seals being essentially U-shaped, e.g. for a U-shaped carriage
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば一般産業機械分野に用いられるリニアガイド装置に関する。
【０００２】
【従来の技術】
従来のこの種のリニアガイド装置としては、例えば図８に示すように、軸方向に延びる案内レール１と、該案内レール１上に軸方向に相対移動可能に跨架されたスライダ２とを備えたものが知られている。
案内レール１の両側面にはそれぞれ軸方向に延びる転動体転動溝３が形成されており、スライダ２のスライダ本体２Ａには、その両袖部４の内側面にそれぞれ転動体転動溝３に対向する転動体転動溝３１が形成されている。
【０００３】
そして、これらの向き合った両転動体転動溝３，３１の間には転動体としての多数のボールＢが転動自在に装填され、このボールＢの転動を介してスライダ２が案内レール１上を軸方向に沿って相対移動できるようになっている。
この移動につれて、案内レール１とスライダ２との間に介在するボールＢは転動してスライダ２の端部に移動するが、スライダ２を軸方向に継続して移動させていくためには、これらのボールＢを無限に循環させる必要がある。
【０００４】
このため、スライダ本体２Ａの袖部４内に更に軸方向に貫通する直線状の転動体通路８を形成すると共に、スライダ本体２Ａの前後両端にそれぞれ転動体循環部品としてのコ字状のエンドキャップ５をサイドシール１１と共にねじ１２を介して固定し、このエンドキャップ５に上記両転動体転動溝３，３１間と上記転動体通路８とを連通する半円弧状に湾曲した転動体循環部６を形成することにより、転動体無限循環軌道を構成している。
【０００５】
サイドシール１１は芯金にゴムや樹脂等のシール材料が接着や溶着により取り付けられており、エンドキャップ５と同様にコ字状をなしてコ字状開口の内側面が案内レール１に沿った形状とされ、これにより、該案内レール１の上面および両側面に密着してスライダ２の端部がシールされるようになっている。なお、図において符号１０はスライダ本体２Ａの端面にエンドキャップ５およびサイドシール１１をねじ止め固定するためのタップ穴、１３は給脂用のグリースニップルである。
【０００６】
ところで、上記従来のリニアガイド装置においては、サイドシール１１をエンドキャップ５と共にスライダ本体２Ａの端面にねじ１２を介して固定する際に、ねじ１２の締め付け時の回転力によってサイドシール１１が位置ずれをおこし、案内レール１との適正な密着性が確保できない虞れがあった。
そこで、このような不具合を回避すべく、実用新案登録第２５２６０６１号公報では、エンドキャップのコ字状開口の内側面に沿って凹溝を形成して、該凹溝にサイドシールを嵌め込んで装着するようにした技術が開示されている。
【０００７】
【発明が解決しようとする課題】
しかしながら、実用新案登録第２５２６０６１号公報に開示された装着方法では、サイドシールをエンドキャップの凹溝に単に嵌め込んでいるだけであるため、スライダを案内レールに跨架する際に、サイドシールがエンドキャップの凹溝から不用意に脱落する虞れがあり、組付作業の作業性が低下する原因になる可能性がある。
【０００８】
本発明はこのような不都合を解消するためになされたものであり、スライダを案内レールに跨架する際に、サイドシールがエンドキャップの凹溝から脱落するのを防止して組立作業の作業性の向上を図ることができるリニアガイド装置を提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記目的を達成するために、請求項１に係る発明は、転動体転動溝を有して軸方向に延長された案内レールと、該案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの両転動体転動溝間に挿入された多数の転動体の転動を介して前記案内レールに案内されて相対移動するスライダとを備え、該スライダは、軸方向に貫通する転動体通路を有するスライダ本体と、前記両転動体転動溝間と前記転動体通路とを連通する転動体循環部を有して前記スライダ本体の両端面に固定されたコ字状のエンドキャップと、該エンドキャップのコ字状開口の内側面に沿って形成された凹溝に装着されたサイドシールとを具備するリニアガイド装置において、
前記サイドシールの外周の幅方向両側の少なくとも上下部分と、前記エンドキャップ内周の対向部分との間に隙間を有するように前記サイドシールの外周、又は前記エンドキャップの内周に設けられた曲面部、又は突起を前記凹溝に弾性的に密着させた状態で該サイドシールを前記凹溝に装着し、前記サイドシールの内周面と案内レールとが密着していることを特徴とする。
【００１０】
【発明の実施の形態】
以下、本発明の実施の形態を図を参照して説明する。図１は本発明の実施の形態の一例であるリニアガイド装置を説明するための説明図であり、（ａ）は軸方向の端部側から見た図、（ｂ）は（ａ）のＡ−Ａ線断面図、図２〜図７は本発明の他の実施の形態であるリニアガイド装置を説明するための説明図である。なお、各実施の形態共に、図８で説明した従来のリニアガイド装置に対してエンドキャプへのサイドシールの装着構造が相違するだけであるため、相違する部分についてのみ説明し、重複部分については同一符号を付して説明を省略する。また、図１（ａ）、図２（ａ）、図３（ａ）、図４（ａ）のサイドシール５０〜８０の輪郭線は実際には破線で表示されるが、ここでは分かりやすくするために実線で表示してある。
【００１１】
図１に示すように、エンドキャップ５のコ字状開口には、該開口の内側面に沿ってコ字状の凹溝４０が形成されており、該凹溝４０にはサイドシール５０が嵌め込まれて装着されている。
サイドシール５０は、例えば芯金にゴムや樹脂、或いはスポンジ、不織布、フェルト等に潤滑剤を含有させた潤滑剤含有部材等のシール材料を接着や溶着等により取り付けたものとされ、エンドキャップ５と同様にコ字状をなしてコ字状開口の内側面が案内レール１に沿った形状とされている。これにより、サイドシール５０のコ字状開口の内側面が案内レール１の上面および両側面に密着してスライダ２の端部がシールされるようになっている。
【００１２】
ここで、この実施の形態では、サイドシール５０の前記スライダ２の幅方向の両外側部を外方に膨らむように湾曲形成して、凹溝４０への装着前のスライダ２の幅方向の寸法を該凹溝４０の同寸法より大きくしており、これにより、サイドシール５０を凹溝４０に嵌め込んだ際に該サイドシール５０の両外側部の一部が該凹溝４０に弾性的に密着した状態で装着され、サイドシール５０の両外側部と凹溝４０との摩擦力によってサイドシール５０の凹溝４０からの脱落が防止される。
【００１３】
このようにこの実施の形態では、サイドシール５０を凹溝４０に嵌め込んだ際に該サイドシール５０の両外側部の一部が該凹溝４０に弾性的に密着した状態で装着されるため、スライダ２を案内レール１に跨架する際に、サイドシール５０がエンドキャップ５の凹溝４０から脱落するのを防止することができ、この結果、組立作業の作業性の向上を図ることができる。
【００１４】
また、サイドシール５０をエンドキャップ５の凹溝４０に嵌め込むだけで簡単に装着することができ、しかも、該サイドシール５０の位置決めも簡単に行うことができる。
なお、本発明のエンドキャップの凹溝やサイドシールの形状およびリニアガイド装置の構成等は上記実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で適宜変更可能である。
【００１５】
例えば、上記実施の形態では、サイドシール５０の前記スライダ２の幅方向の両外側部を外方に膨らむように湾曲形成しているが、これに代えて、図２に示すように、サイドシール６０の前記スライダ２の幅方向の両外側部にそれぞれ少なくとも一つの円弧状の突起６１を設けて凹溝４０への装着前のサイドシール６０のスライダ２の幅方向の寸法を該凹溝４０の同寸法より大きくし、これにより、サイドシール６０を凹溝４０に嵌め込んだ際に該サイドシール６０の両外側部の突起６１が凹溝４０に弾性的に密着した状態で装着されるようにしてもよく、或いは図３に示すように、サイドシール７０の前記スライダ２の幅方向の両外側部にそれぞれ少なくとも一つの多角状の突起７１を設けて凹溝４０への装着前のサイドシール７０のスライダ２の幅方向の寸法を該凹溝４０の同寸法より大きくし、これにより、サイドシール７０を凹溝４０に嵌め込んだ際に該サイドシール７０の両外側部の突起７１が凹溝４０に弾性的に密着した状態で装着されるようにしてもよい。
【００１６】
更に、図４に示すように、エンドキャップ５側の凹溝４０ａを内方に膨らむように湾曲形成して凹溝４０ａへの装着前のサイドシール８０のスライダ２の幅方向の寸法を該凹溝４０ａの同寸法より大きくし，これにより、サイドシール８０を凹溝４０ａに嵌め込んだ際に該サイドシール８０の両外側部の一部が該凹溝４０ａに弾性的に密着した状態で装着されるようにしてもよい。
【００１７】
更に、図５に示すように、エンドキャップ５に二つの凹溝４０（又は４０ａ），４１を形成して、一方の凹溝４０（又は４０ａ）にサイドシール５０等を弾性的に密着させた状態で嵌め込み、他方の凹溝４１に潤滑剤含有部材５１を嵌め込むようにしてもよく、或いは、図６に示すように、エンドキャップ５に大きめの凹溝４２を形成して、該凹溝４２にサイドシール５０等や潤滑剤含有部材５１を嵌め込むようにしてもよい。
【００１８】
更に、上記実施の形態では、サイドシールのスライダの幅方向の両側部の少なくとも一部を凹溝に弾性的に密着させた状態で装着した場合を例に採ったが、これに代えて、図７に示すように、サイドシール９０の厚さ方向の両面部の少なくとも一部に突起９１を形成して、該突起９１を凹溝４０に弾性的に密着させて装着するようにしてもよい。
【００１９】
【発明の効果】
上記の説明から明らかなように、本発明によれば、スライダを案内レールに跨架する際に、サイドシールがエンドキャップの凹溝から脱落するのを防止することができるので、組立作業の作業性の向上を図ることができるという効果が得られる。
【図面の簡単な説明】
【図１】本発明の実施の形態の一例であるリニアガイド装置を説明するための説明図であり、（ａ）は軸方向の端部側から見た図、（ｂ）は（ａ）のＡ−Ａ線断面図である。
【図２】本発明の他の実施の形態であるリニアガイド装置を説明するための説明図であり、（ａ）は軸方向の端部側から見た図、（ｂ）は（ａ）のＡ−Ａ線断面図である。
【図３】本発明の他の実施の形態であるリニアガイド装置を説明するための説明図であり、（ａ）は軸方向の端部側から見た図、（ｂ）は（ａ）のＡ−Ａ線断面図である。
【図４】本発明の他の実施の形態であるリニアガイド装置を説明するための説明図であり、（ａ）は軸方向の端部側から見た図、（ｂ）は（ａ）のＡ−Ａ線断面図である。
【図５】本発明の他の実施の形態であるリニアガイド装置を説明するための説明的断面図である。
【図６】本発明の他の実施の形態であるリニアガイド装置を説明するための説明的断面図である。
【図７】本発明の他の実施の形態であるリニアガイド装置を説明するための説明的断面図である。
【図８】本発明の他の実施の形態であるリニアガイド装置を説明するための説明的断面図である。
【符号の説明】
１…案内レール
２…スライダ
２Ａ…スライダ本体
３…転動体転動溝
４…袖部
５…エンドキャップ
６…転動体循環部
８…転動体通路
１０…タップ穴
１１…サイドシール
１２…ねじ
１３…グリースニップル
３１…転動体転動溝
４０，４０ａ…凹溝
５０，６０，７０，８０，９０…サイドシール
６１…円弧状の突起
７１…多角状の突起
Ｂ…ボール（転動体）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a linear guide device used, for example, in the field of general industrial machinery.
[0002]
[Prior art]
As a conventional linear guide device of this type, for example, as shown in FIG. 8, a guide rail 1 extending in the axial direction and a slider 2 straddling the guide rail 1 so as to be relatively movable in the axial direction are provided. Is known.
Roller element rolling grooves 3 extending in the axial direction are formed on both side surfaces of the guide rail 1. The slider body 2 A of the slider 2 has rolling element rolling grooves 3 on the inner side surfaces of both sleeve portions 4. The rolling-element rolling groove | channel 31 which opposes is formed.
[0003]
A large number of balls B as rolling elements are slidably loaded between the rolling grooves 3 and 31 facing each other, and the slider 2 is guided to the guide rail 1 through the rolling of the balls B. It can move relative to the top along the axial direction.
Along with this movement, the ball B interposed between the guide rail 1 and the slider 2 rolls and moves to the end of the slider 2, but in order to continuously move the slider 2 in the axial direction, It is necessary to circulate these balls B indefinitely.
[0004]
Therefore, a linear rolling element passage 8 penetrating in the axial direction is further formed in the sleeve portion 4 of the slider body 2A, and U-shaped end caps as rolling element circulation parts are provided at both front and rear ends of the slider body 2A. 5 is fixed together with the side seal 11 via a screw 12, and the rolling element circulation part curved in a semicircular arc shape that communicates between the rolling element rolling grooves 3 and 31 and the rolling element passage 8 with the end cap 5. By forming 6, the rolling element infinite circulation trajectory is configured.
[0005]
The side seal 11 is formed by attaching a seal material such as rubber or resin to the core metal by adhesion or welding. Like the end cap 5, the side seal 11 has a U-shape and the inner surface of the U-shape opening extends along the guide rail 1. Thus, the end of the slider 2 is sealed in close contact with the upper surface and both side surfaces of the guide rail 1. In the figure, reference numeral 10 denotes a tapped hole for screwing and fixing the end cap 5 and the side seal 11 to the end face of the slider body 2A, and 13 denotes a grease nipple for grease supply.
[0006]
By the way, in the conventional linear guide device, when the side seal 11 is fixed to the end surface of the slider body 2A together with the end cap 5 via the screw 12, the side seal 11 is displaced due to the rotational force when the screw 12 is tightened. There was a possibility that proper adhesion to the guide rail 1 could not be secured.
Therefore, in order to avoid such a problem, in Utility Model Registration No. 2526061, a concave groove is formed along the inner surface of the U-shaped opening of the end cap, and a side seal is fitted into the concave groove. A technique for mounting is disclosed.
[0007]
[Problems to be solved by the invention]
However, in the mounting method disclosed in Utility Model Registration No. 2526061, the side seal is simply fitted into the recessed groove of the end cap. Therefore, when the slider is straddled over the guide rail, the side seal is There is a possibility that the end cap may accidentally fall out of the recessed groove of the end cap, which may cause a decrease in workability of the assembly work.
[0008]
The present invention has been made to eliminate such inconvenience, and when the slider is straddled on the guide rail, the side seal is prevented from falling off from the concave groove of the end cap, and the workability of the assembly work is improved. An object of the present invention is to provide a linear guide device capable of improving the above.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is directed to a guide rail having a rolling element rolling groove and extending in the axial direction, and a rolling element facing the rolling element rolling groove of the guide rail. And a slider that moves relative to the guide rail through the rolling of a large number of rolling elements inserted between the rolling grooves of the rolling elements. A slider body having a rolling element passage penetrating in a direction, a rolling body circulation portion communicating between the rolling element rolling grooves and the rolling element passage, and fixed to both end faces of the slider body. A linear guide device comprising: a cylindrical end cap; and a side seal mounted in a concave groove formed along the inner surface of the U-shaped opening of the end cap.
Curved surface provided on the outer periphery of the side seal or the inner periphery of the end cap so as to have a gap between at least the upper and lower portions on both sides in the width direction of the outer periphery of the side seal and the opposing portion of the inner periphery of the end cap The side seal is attached to the concave groove in a state where the portion or the projection is elastically adhered to the concave groove, and the inner peripheral surface of the side seal and the guide rail are in close contact with each other .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A and 1B are explanatory views for explaining a linear guide device which is an example of an embodiment of the present invention. FIG. 1A is a view seen from an end portion in the axial direction, and FIG. -A sectional drawing, FIGS. 2-7 is explanatory drawing for demonstrating the linear guide apparatus which is other embodiment of this invention. In each of the embodiments, only the mounting structure of the side seal to the end cap is different from the conventional linear guide device described in FIG. 8, so only the different portions will be described and the overlapping portions will be described. The same reference numerals are given and the description is omitted. In addition, the outlines of the side seals 50 to 80 in FIGS. 1 (a), 2 (a), 3 (a), and 4 (a) are actually displayed as broken lines, but are easy to understand here. Therefore, it is displayed with a solid line.
[0011]
As shown in FIG. 1, the U-shaped opening of the end cap 5 is formed with a U-shaped groove 40 along the inner surface of the opening, and a side seal 50 is fitted into the groove 40. It is installed.
The side seal 50 is formed by attaching a seal material such as a lubricant containing member such as rubber or resin, or sponge, non-woven fabric, felt or the like to the metal core by bonding or welding. Similarly, the U-shape is formed, and the inner surface of the U-shaped opening is formed along the guide rail 1. Thus, the inner surface of the U-shaped opening of the side seal 50 is in close contact with the upper surface and both side surfaces of the guide rail 1 so that the end of the slider 2 is sealed.
[0012]
Here, in this embodiment, both side portions of the side seal 50 in the width direction of the slider 2 are curved so as to bulge outward, and the dimension in the width direction of the slider 2 before being mounted in the concave groove 40. Is larger than the same dimension of the concave groove 40, so that when the side seal 50 is fitted into the concave groove 40, a part of both outer side portions of the side seal 50 elastically move into the concave groove 40. The side seal 50 is mounted in close contact, and the side seal 50 is prevented from falling off the concave groove 40 by the frictional force between the outer portions of the side seal 50 and the concave groove 40.
[0013]
As described above, in this embodiment, when the side seal 50 is fitted into the concave groove 40, a part of both outer side portions of the side seal 50 is mounted in a state of being elastically in close contact with the concave groove 40. When the slider 2 is straddled over the guide rail 1, it is possible to prevent the side seal 50 from dropping from the concave groove 40 of the end cap 5, and as a result, it is possible to improve the workability of the assembly work. it can.
[0014]
Further, the side seal 50 can be easily mounted simply by fitting into the concave groove 40 of the end cap 5, and the side seal 50 can be easily positioned.
It should be noted that the shape of the concave groove and side seal of the end cap of the present invention, the configuration of the linear guide device, and the like are not limited to the above embodiment, and can be changed as appropriate without departing from the gist of the present invention.
[0015]
For example, in the above-described embodiment, both the outer side portions of the side seal 50 in the width direction of the slider 2 are curved so as to bulge outward. Instead, as shown in FIG. 60. At least one arc-shaped protrusion 61 is provided on each of both outer sides of the slider 2 in the width direction of the slider 60 so that the dimension in the width direction of the slider 2 of the side seal 60 before being attached to the groove 40 is determined. Therefore, when the side seal 60 is fitted into the concave groove 40, the projections 61 on both outer sides of the side seal 60 are mounted in a state of being elastically in close contact with the concave groove 40. Alternatively, as shown in FIG. 3, at least one polygonal protrusion 71 is provided on each outer side portion of the side seal 70 in the width direction of the slider 2, and the side seal 70 before being installed in the groove 40. Sura When the side seal 70 is fitted into the groove 40, the protrusions 71 on both outer sides of the side seal 70 are formed in the groove 40. You may make it mount | wear with the state contact | adhered elastically.
[0016]
Further, as shown in FIG. 4, the concave groove 40a on the end cap 5 side is curved so as to swell inwardly, and the dimension in the width direction of the slider 2 of the side seal 80 before being attached to the concave groove 40a is determined. The groove 40a is made larger than the same size, so that when the side seal 80 is fitted into the concave groove 40a, the outer seals are mounted in a state where a part of both outer side portions of the side seal 80 are elastically adhered to the concave groove 40a. You may be made to do.
[0017]
Further, as shown in FIG. 5, two concave grooves 40 (or 40a) and 41 are formed in the end cap 5, and the side seal 50 or the like is elastically adhered to one concave groove 40 (or 40a). The lubricant containing member 51 may be fitted into the other groove 41, or a large groove 42 may be formed in the end cap 5 as shown in FIG. The side seal 50 or the like or the lubricant-containing member 51 may be fitted.
[0018]
Furthermore, in the above-described embodiment, the case where the side seal is mounted in a state where at least a part of both sides in the width direction of the slider is in close contact with the concave groove is taken as an example. 7, protrusions 91 may be formed on at least a part of both side portions of the side seal 90 in the thickness direction, and the protrusions 91 may be attached in an elastic contact with the concave grooves 40.
[0019]
【The invention's effect】
As is clear from the above description, according to the present invention, when the slider is straddled on the guide rail, it is possible to prevent the side seal from dropping from the concave groove of the end cap. The effect that improvement of property can be aimed at is acquired.
[Brief description of the drawings]
FIG. 1 is an explanatory view for explaining a linear guide device as an example of an embodiment of the present invention, (a) is a view seen from an axial end portion, and (b) is a view of (a). It is AA sectional view.
FIGS. 2A and 2B are explanatory views for explaining a linear guide device according to another embodiment of the present invention, in which FIG. 2A is a view seen from an end in the axial direction, and FIG. It is AA sectional view.
FIGS. 3A and 3B are explanatory views for explaining a linear guide device according to another embodiment of the present invention, in which FIG. 3A is a view seen from an end in the axial direction, and FIG. It is AA sectional view.
4A and 4B are explanatory views for explaining a linear guide device according to another embodiment of the present invention, in which FIG. 4A is a diagram viewed from an end in the axial direction, and FIG. It is AA sectional view.
FIG. 5 is an explanatory cross-sectional view for explaining a linear guide device according to another embodiment of the present invention.
FIG. 6 is an explanatory sectional view for explaining a linear guide device according to another embodiment of the present invention.
FIG. 7 is an explanatory sectional view for explaining a linear guide device according to another embodiment of the present invention.
FIG. 8 is an explanatory cross-sectional view for explaining a linear guide device according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Guide rail 2 ... Slider 2A ... Slider main body 3 ... Rolling body rolling groove 4 ... Sleeve part 5 ... End cap 6 ... Rolling body circulation part 8 ... Rolling body channel | path 10 ... Tap hole 11 ... Side seal 12 ... Screw 13 ... Grease nipple 31 ... rolling element rolling groove 40, 40a ... concave groove 50, 60, 70, 80, 90 ... side seal 61 ... arc-shaped protrusion 71 ... polygonal protrusion B ... ball (rolling element)

Claims (1)

転動体転動溝を有して軸方向に延長された案内レールと、該案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの両転動体転動溝間に挿入された多数の転動体の転動を介して前記案内レールに案内されて相対移動するスライダとを備え、該スライダは、軸方向に貫通する転動体通路を有するスライダ本体と、前記両転動体転動溝間と前記転動体通路とを連通する転動体循環部を有して前記スライダ本体の両端面に固定されたコ字状のエンドキャップと、該エンドキャップのコ字状開口の内側面に沿って形成された凹溝に装着されたサイドシールとを具備するリニアガイド装置において、
前記サイドシールの外周の幅方向両側の少なくとも上下部分と、前記エンドキャップ内周の対向部分との間に隙間を有するように前記サイドシールの外周、又は前記エンドキャップの内周に設けられた曲面部、又は突起を前記凹溝に弾性的に密着させた状態で該サイドシールを前記凹溝に装着し、前記サイドシールの内周面と案内レールとが密着していることを特徴とするリニアガイド装置。A guide rail having a rolling element rolling groove and extending in the axial direction, a rolling element rolling groove facing the rolling element rolling groove of the guide rail, and between these rolling element rolling grooves A slider which is guided by the guide rail through the rolling of a large number of rolling elements inserted into the guide rail and moves relative to the slider. The slider includes a slider body having a rolling element passage penetrating in the axial direction; A U-shaped end cap fixed to both end faces of the slider body and having a rolling element circulation portion communicating between the rolling element rolling grooves and the rolling element passage, and an inner portion of the U-shaped opening of the end cap. In a linear guide device comprising a side seal mounted in a concave groove formed along a side surface,
Curved surface provided on the outer periphery of the side seal or the inner periphery of the end cap so as to have a gap between at least the upper and lower portions on both sides in the width direction of the outer periphery of the side seal and the opposing portion of the inner periphery of the end cap The side seal is mounted in the concave groove in a state where the portion or the protrusion is elastically adhered to the concave groove, and the inner peripheral surface of the side seal and the guide rail are in close contact with each other. Guide device.
JP2002157489A 2002-05-30 2002-05-30 Linear guide device Expired - Fee Related JP4232389B2 (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
KR20190008314A (en) 2016-05-16 2019-01-23 니타 가부시키가이샤 Installation structure of a sliding scraper and linear guide device

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DE102008056202A1 (en) * 2008-11-06 2010-05-12 Mahle International Gmbh bearings
JP2010216635A (en) * 2009-03-19 2010-09-30 Nok Corp Sealing device
CN102405355B (en) * 2010-03-26 2014-06-25 日本精工株式会社 Linear guide device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190008314A (en) 2016-05-16 2019-01-23 니타 가부시키가이샤 Installation structure of a sliding scraper and linear guide device
DE112017002495T5 (en) 2016-05-16 2019-02-28 Nitta Corporation FASTENING STRUCTURE FOR A SLIDER AND A LINEAR GUIDE
US10550883B2 (en) 2016-05-16 2020-02-04 Nitta Corporation Attachment structure for sliding scraper, and linear guide device

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