JP2017009056A

JP2017009056A - Stopper slip-off prevention stopper

Info

Publication number: JP2017009056A
Application number: JP2015125867A
Authority: JP
Inventors: 真士小澤; Shinji Ozawa
Original assignee: NSK Ltd
Current assignee: NSK Ltd
Priority date: 2015-06-23
Filing date: 2015-06-23
Publication date: 2017-01-12
Anticipated expiration: 2035-06-23
Also published as: JP6645042B2

Abstract

PROBLEM TO BE SOLVED: To provide a slider slip-off prevention stopper easily attached/detached to/from a fitting hole of a temporary shaft, and improving work efficiency for preventing slid-off from the fitting hole in a fitting state.SOLUTION: A slider slip-off prevention stopper 1 includes: a cylindrical body part 10 is detachably provided at a plurality of fitting holes provided in a lengthwise direction of a temporary shaft, is fitted or loosely fitting into the counterbore parts of the fitting holes; a stationary plate 30 that is formed into a tabular shape, and is longer than the diameter of an opening part of a shaft storage part of the fitting hole; and an elastic body 20 that is inserted into the shaft storage parts of the fitting holes, and of which one end part 21a is connected to the body part 10, and the other end part 21b is connected to the stationary plate 30.SELECTED DRAWING: Figure 1

Description

本発明は、直動案内装置のスライダが仮軸から外れることを防止するスライダ抜け止めストッパに関する。 The present invention relates to a slider retaining stopper that prevents a slider of a linear motion guide device from being detached from a temporary shaft.

直動案内装置は、図６に示すように、案内レール２０１とスライダ（「ベアリング」とも称される）１０２と複数個のボール（転動体）１０３とを備えている。案内レール２０１及びスライダ１０２は、互いに対向配置されて転動体１０３の転動通路を形成する転動溝（転動面）１１１，１２１を有する。スライダ１０２は、案内レール２０１の上側に配置される胴部１０２Ａと、両側に配置される脚部１０２Ｂを有する。 As shown in FIG. 6, the linear motion guide device includes a guide rail 201, a slider (also referred to as “bearing”) 102, and a plurality of balls (rolling elements) 103. The guide rail 201 and the slider 102 have rolling grooves (rolling surfaces) 111 and 121 that face each other and form a rolling passage of the rolling element 103. The slider 102 has a trunk portion 102A disposed on the upper side of the guide rail 201 and leg portions 102B disposed on both sides.

スライダ１０２は、また、転動体１０３の戻し通路１２２と、この戻し通路１２２と上記転動通路とを連通させる方向転換路を有する。そして、上記転動通路、戻し通路、及び方向転換路で転動体の循環経路が構成され、この循環経路内をボール１０３が循環することにより、案内レール２０１及びスライダ１０２の一方が他方に対して相対的に直線運動する。
直動案内装置の案内レール２０１には、基台等の被取付部にボルトを用いて取り付けるための取り付け穴１０４が形成されている。この取り付け穴１０４は、図７に示すように、ボルトの頭部を収める座繰り部１４１と、ボルトの軸部を収める軸収納部１４２とからなり、開口端に面取り部１４３が形成されている。 The slider 102 also has a return path 122 of the rolling element 103 and a direction changing path that connects the return path 122 and the rolling path. The rolling path, the return path, and the direction changing path constitute a circulation path of the rolling elements, and the ball 103 circulates in the circulation path, so that one of the guide rail 201 and the slider 102 is in relation to the other. Move relatively linearly.
The guide rail 201 of the linear motion guide device is formed with a mounting hole 104 for mounting to a mounted portion such as a base using a bolt. As shown in FIG. 7, the mounting hole 104 includes a countersink portion 141 that stores the bolt head portion and a shaft storage portion 142 that stores the bolt shaft portion, and a chamfered portion 143 is formed at the opening end. .

このような直動案内装置では、搬送時や取り付け時に、スライダが案内レールから外れることを防止する必要がある。特許文献１には、そのために使用されるストッパが記載されている。
このストッパは、案内レールの上面を跨ぐように断面コ字状に形成され、コ字状の一方の端部が更に内側にほぼ直角に曲げてあり、この曲げた部分（引掛り部）の先端に弾性部材が固定されている。コ字状の他方の端部にネジ穴が形成され、このネジ穴に、先端に弾性部材を固定したボルトが螺合してある。このストッパを案内レールに取り付ける際には、引掛り部を案内レールの一方の側面の転動溝に係合させた後に、締めつけボルトを締めつけて、その先端を案内レールの他方の側面の転動溝に係合させる。 In such a linear guide device, it is necessary to prevent the slider from being detached from the guide rail at the time of conveyance or attachment. Patent Document 1 describes a stopper used for this purpose.
This stopper is formed in a U-shaped cross-section so as to straddle the upper surface of the guide rail, and one end of the U-shape is further bent inward at a substantially right angle, and the tip of this bent portion (hanging portion) An elastic member is fixed to the surface. A screw hole is formed at the other end of the U-shape, and a bolt having an elastic member fixed to the tip is screwed into the screw hole. When this stopper is attached to the guide rail, after engaging the hook with the rolling groove on one side of the guide rail, the tightening bolt is tightened and its tip is rolled on the other side of the guide rail. Engage with the groove.

また、特許文献２には、弾性材料（金属板、合成樹脂板など）からなる略Ｍ形のストッパであって、案内レール側面の転動溝に係合させる転動溝嵌合部を有し、案内レールの上面に弾接させるＶ字状凹陥部の底部の下方に、案内レールの取り付け穴の縁部に内接させる係止部を突出させたものが記載されている。
なお、スライダが案内レールから外れることを防止するために、案内レールの両端面に雌ねじを形成し、案内レールの上面より突出するように配置した板材をボルトで固定することや、案内レールの取り付け穴にゴム栓を弾性変形状態で挿入し、案内レールの上面より突出させることも行われている。 Patent Document 2 is a substantially M-shaped stopper made of an elastic material (metal plate, synthetic resin plate, etc.), and has a rolling groove fitting portion that engages with the rolling groove on the side surface of the guide rail. In addition, there is described a structure in which a locking portion that is inscribed in the edge portion of the mounting hole of the guide rail is protruded below the bottom portion of the V-shaped recessed portion that is elastically contacted with the upper surface of the guide rail.
In order to prevent the slider from coming off the guide rail, female screws are formed on both end faces of the guide rail, and the plate material arranged to protrude from the upper surface of the guide rail is fixed with bolts, or the guide rail is attached. A rubber plug is inserted into the hole in an elastically deformed state and protrudes from the upper surface of the guide rail.

実用新案登録第２５３５７０６号公報Utility Model Registration No. 2535706 特許第２８６５９０５号公報Japanese Patent No. 2865905

しかしながら、特許文献１に記載されているストッパは、金属部材のプレス成形等により製造するため製造コストが高く、取り付けの際にボルトを締め付け、取り外しの際にボルトの締め付けを解除する作業が必要であるため、着脱に手間がかかる。
また、特許文献２に記載されているストッパは、転動溝嵌合部が案内レールの軌道溝を損傷する恐れがある。
また、板材をボルトで固定する方法では、案内レールの両端面に雌ねじを形成するためコスト高となり、ボルトで固定するため着脱に手間がかかる。
すなわち、これらは、スライダを輸送するために、スライダを嵌合し、案内レールに接続可能な仮軸に設けられた取り付け穴についても同様であり、仮軸に嵌合させたスライダに、フレッチング等を発生させてしまう可能性があった。 However, since the stopper described in Patent Document 1 is manufactured by press molding of a metal member or the like, the manufacturing cost is high, and it is necessary to tighten the bolt when attaching and release the bolt when removing. Therefore, it takes time to attach and detach.
In the stopper described in Patent Document 2, the rolling groove fitting portion may damage the raceway groove of the guide rail.
Further, in the method of fixing the plate material with bolts, it is expensive to form female screws on both end faces of the guide rail, and it takes time to attach and detach because it is fixed with bolts.
That is, the same applies to the mounting holes provided in the temporary shaft that can be connected to the guide rail by fitting the slider in order to transport the slider. There was a possibility of generating.

さらに、ゴム栓を用いる方法では、搬送時の衝撃や振動でスライダが移動してゴム栓の突出部に当たると、ゴム栓が外れたり損傷したりする恐れがある。ゴム栓が外れることを避けるために取り付け穴に対する圧入代を大きくすると、ゴム栓が挿入しにくくなる。したがって、ストッパの着脱の作業効率向上についても改善の余地があった。 Furthermore, in the method using a rubber plug, if the slider moves due to impact or vibration during conveyance and hits the protruding portion of the rubber plug, the rubber plug may be detached or damaged. If the press-fitting allowance for the mounting hole is increased in order to prevent the rubber plug from coming off, it becomes difficult to insert the rubber plug. Therefore, there is room for improvement in improving the work efficiency of attaching and detaching the stopper.

そこで、本発明は上記の問題点に着目してなされたものであり、その目的は、輸送のために仮軸に嵌合させたスライダに、フレッチング等を発生させず、スライダを案内レールに取り付ける際に、仮軸の取り付け穴に対して着脱し易く、取り付け状態で取り付け穴から外れにくい作業効率を向上させたスライダ抜け止め用ストッパを提供することにある。 Therefore, the present invention has been made paying attention to the above-mentioned problems, and its purpose is to attach the slider to the guide rail without causing fretting or the like on the slider fitted to the temporary shaft for transportation. At this time, it is an object of the present invention to provide a slider retaining stopper that is easy to attach to and detach from the mounting hole of the temporary shaft and has improved working efficiency that is difficult to be detached from the mounting hole in the mounted state.

上記目的を達成するためのスライダ抜け止め用ストッパのある態様は、複数個の転動体を介して上側にスライダが輸送可能に設置された仮軸の長さ方向に案内レールと同じ規格で複数個設けられた取り付け穴に着脱可能に設置され、
上記取り付け穴は、上記仮軸の上面に開口する座繰り部と、上記座繰り部より小さい径をなして上記座繰り部に連通して上記取り付け穴の下面に開口する軸収納部とを有し、
上記座繰り部に嵌合又は遊嵌される筒状の本体部と、板状をなし、上記軸収納部の開口部の径よりも長い固定板と、上記軸収納部に挿入され、一方の端部が上記本体部に連結され、他方の端部が上記固定板に連結される弾性体とを有する。 A certain aspect of the slider retaining stopper for achieving the above object is that a plurality of sliders according to the same standard as the guide rail in the length direction of the temporary shaft in which the slider is transportably installed on the upper side via a plurality of rolling elements. It is installed detachably in the provided mounting hole,
The mounting hole has a countersink portion that opens to the upper surface of the temporary shaft and a shaft storage portion that has a smaller diameter than the countersink portion and communicates with the countersink portion and opens to the lower surface of the mounting hole. And
A cylindrical main body portion that is fitted or loosely fitted to the countersink portion, a plate shape, a fixed plate that is longer than the diameter of the opening portion of the shaft storage portion, and inserted into the shaft storage portion, An end portion is connected to the main body portion, and the other end portion has an elastic body connected to the fixing plate.

ここで、上記スライダ抜け止め用ストッパにおいては、上記本体部が、第１筒状体と、インロー構造をなして第１筒状体に着脱可能に嵌合する第２筒状体とを有してもよい。 Here, in the slider retaining stopper, the main body has a first tubular body and a second tubular body that has an inlay structure and is detachably fitted to the first tubular body. May be.

また、上記スライダ抜け止め用ストッパにおいては、第１筒状体が有蓋無底の形状をなして、開口部側の内周面に環状溝部が形成され、
第２筒状体が、第１筒状体の内径以下の寸法の外径の無蓋有底の形状をなして、底部の周面には上記環状溝部に嵌合するフランジ部が周方向に亘って形成され、上記フランジ部には、上記底面に向かって縮径された傾斜面が形成され、
第１筒状体の内周面と第２筒状体の外周面とを対向させると共に、上記環状溝部に上記フランジ部を嵌合させて、第１筒状体内に第２筒状体を収納させることによって上記本体部が構成されてもよい。 In the slider retaining stopper, the first cylindrical body has a closed and bottomless shape, and an annular groove is formed on the inner peripheral surface on the opening side.
The second cylindrical body has a non-bottomed bottomed shape with an outer diameter of a dimension equal to or smaller than the inner diameter of the first cylindrical body, and a flange portion fitted in the annular groove portion extends in the circumferential direction on the peripheral surface of the bottom portion. The flange portion is formed with an inclined surface having a diameter reduced toward the bottom surface,
The inner peripheral surface of the first cylindrical body and the outer peripheral surface of the second cylindrical body are made to face each other, and the flange portion is fitted into the annular groove portion, so that the second cylindrical body is stored in the first cylindrical body. By doing so, the main body may be configured.

また、上記スライダ抜け止め用ストッパにおいては、上記固定板の長手方向の寸法が、上記座繰り部の底面と上記座繰り部の開口部の周縁部とに上記固定板を懸架させたときに上記取り付け穴から上記固定板の端部が突出する長さとしてもよい。すなわち、上記固定板の長手方向の寸法は、上記軸収納部の開口部の径よりも長いだけでなく、さらに、固定板を上記座繰り部の底面と上記座繰り部の開口部の周縁部とに懸架させたときに上記取り付け穴から上記固定板の端部が突出するほどに長くてもよい。 Further, in the slider retaining stopper, the dimension of the fixing plate in the longitudinal direction is such that when the fixing plate is suspended between the bottom surface of the countersink portion and the peripheral edge portion of the opening portion of the countersink portion. The length of the end of the fixing plate may protrude from the mounting hole. That is, the dimension of the fixing plate in the longitudinal direction is not only longer than the diameter of the opening portion of the shaft housing portion, but also the fixing plate is connected to the bottom surface of the countersink portion and the peripheral portion of the opening portion of the countersink portion. It may be so long that the end of the fixing plate protrudes from the mounting hole when suspended.

本発明の一態様によれば、輸送のために仮軸に嵌合させたスライダに、フレッチング等を発生させず、スライダを案内レールに取り付ける際に、仮軸の取り付け穴に対して着脱し易く、取り付け状態で取り付け穴から外れにくい作業効率を向上させたスライダ抜け止め用ストッパを提供することができる。 According to one aspect of the present invention, the slider fitted to the temporary shaft for transportation does not generate fretting or the like, and can be easily attached to and detached from the mounting hole of the temporary shaft when the slider is attached to the guide rail. Thus, it is possible to provide a stopper for preventing the slider from coming off, which has improved working efficiency that is difficult to be removed from the mounting hole in the mounted state.

スライダ抜け止め用ストッパの第１実施形態の構成を示す図であり、（ａ）は斜視図、（ｂ）は断面図、（ｃ）は分解図である。It is a figure which shows the structure of 1st Embodiment of the stopper for slider removal prevention, (a) is a perspective view, (b) is sectional drawing, (c) is an exploded view. 本実施形態のスライダ抜け止めストッパの設置態様を示す図であり、（ａ）はスライダ抜け止めストッパを設置する仮軸の側面図、（ｂ）はスライダ抜け止めストッパを仮軸に設置したときの側面図、（ｃ）は、変形例として、スライダ抜け止めストッパを仮軸に設置したときの側面図である。It is a figure which shows the installation aspect of the slider retaining stopper of this embodiment, (a) is a side view of the temporary shaft which installs a slider retaining stopper, (b) is when a slider retaining stopper is installed in a temporary shaft. Side view (c) is a side view when a slider retaining stopper is installed on the temporary shaft as a modification. （ａ）〜（ｄ）は本実施形態のスライダ抜け止めストッパの取り付け過程を示す断面図であり、（ｅ）〜（ｈ）は本実施形態のスライダ抜け止めストッパを取り外す過程を示す断面図であり、（ｉ）は変形例のスライダ抜け止めストッパの取り付け過程を示す断面図である。(A)-(d) is sectional drawing which shows the attachment process of the slider retaining stopper of this embodiment, (e)-(h) is sectional drawing which shows the process of removing the slider retaining stopper of this embodiment. (I) is sectional drawing which shows the attachment process of the slider stopper stopper of a modification. スライダ抜け止めストッパの第２実施形態の設置態様を示す図であり、スライダ抜け止めストッパを仮軸に設置したときの側面図である。It is a figure which shows the installation aspect of 2nd Embodiment of a slider retaining stopper, and is a side view when installing a slider retaining stopper on a temporary shaft. （ａ）〜（ｃ）は本実施形態のスライダ抜け止めストッパの取り付け過程を示す断面図であり、（ｄ）は本実施形態のスライダ抜け止めストッパを取り外す過程を示す断面図であり、（ｅ）は変形例のスライダ抜け止めストッパの取り付け過程を示す断面図である。(A)-(c) is sectional drawing which shows the attachment process of the slider retaining stopper of this embodiment, (d) is sectional drawing which shows the process of removing the slider retaining stopper of this embodiment, (e ) Is a cross-sectional view showing a process of attaching a slider retaining stopper according to a modification. 直動案内装置の構造を説明する斜視図である。It is a perspective view explaining the structure of a linear motion guide apparatus. 案内レールの取り付け穴を示す断面図である。It is sectional drawing which shows the attachment hole of a guide rail.

以下、スライダ抜け止め用ストッパの実施形態について図面を参照して説明する。なお、以下の説明においては、スライダを輸送するための仮軸が延びる長手方向に沿ってスライダが移動可能とされ、仮軸を基準としてスライダが配置される向きを上側、その反対の向きを下側とする。よって、略Ｕ字形状の断面をなすスライダは、両脚部が仮軸の側面側に位置し、両脚部を連結する胴部が仮軸上側に位置する。 Hereinafter, an embodiment of a slider retaining stopper will be described with reference to the drawings. In the following description, the slider is movable along the longitudinal direction in which the temporary shaft for transporting the slider extends, and the direction in which the slider is arranged with respect to the temporary shaft is the upper side, and the opposite direction is the lower side. Let it be the side. Therefore, in the slider having a substantially U-shaped cross section, both leg portions are located on the side surface side of the temporary shaft, and the body portion that connects both leg portions is located on the upper side of the temporary shaft.

（第１実施形態）
図１は、スライダ抜け止め用ストッパの第１実施形態の構成を示す図であり、（ａ）は斜視図、（ｂ）は断面図、（ｃ）は分解図である。
図１（ａ）に示すように、スライダ抜け止め用ストッパ（以下、ストッパということがある）１は、筒状の本体部１０と、弾性体２０と、固定板３０とを有する。 (First embodiment)
1A and 1B are diagrams showing a configuration of a first embodiment of a slider retaining stopper, wherein FIG. 1A is a perspective view, FIG. 1B is a sectional view, and FIG. 1C is an exploded view.
As shown in FIG. 1A, a slider retaining stopper (hereinafter sometimes referred to as a stopper) 1 includes a cylindrical main body 10, an elastic body 20, and a fixing plate 30.

＜本体部＞
本体部１０は、図１（ｂ）に示すように、有蓋無底の形状をなす第１筒状体１１と、無蓋有底の形状をなし、第１筒状体１１とインロー構造を構成して第１筒状体１１に着脱可能に嵌合する第２筒状体１２とを有する。具体的に、第１筒状体１１は、円盤状の蓋部１１ａと、この蓋部１１ａの外縁に沿って立設した筒状の壁部１１ｂとを有し、壁部１１ｂの蓋部１１ａが設けられた端部と反対側の端部が開口部１１ｃを形成している。また、第２筒状体１２は、円盤状の底部１２ａと、この底部１２ａの外縁に沿って立設した筒状の壁部１２ｂとを有し、壁部１２ｂの底部１２ａが設けられた端部と反対側の端部が開口部１２ｃを形成している。
さらに、第１筒状体１１及び第２筒状体１２は、例えば、ニトリルゴム（ＮＢＲ）の加硫成形または射出成形か、熱可塑性エラストマーの射出成形で製造することが好ましい。 <Main body>
As shown in FIG. 1 (b), the main body portion 10 has a first cylindrical body 11 having a lidless bottom shape and a bottomless bottom shape, and constitutes an inlay structure with the first cylindrical body 11. And a second tubular body 12 detachably fitted to the first tubular body 11. Specifically, the first cylindrical body 11 has a disk-shaped lid portion 11a and a cylindrical wall portion 11b erected along the outer edge of the lid portion 11a, and the lid portion 11a of the wall portion 11b. The end opposite to the end provided with an opening 11c forms the opening 11c. The second cylindrical body 12 has a disc-shaped bottom portion 12a and a cylindrical wall portion 12b erected along the outer edge of the bottom portion 12a, and an end provided with the bottom portion 12a of the wall portion 12b. An end portion on the side opposite to the portion forms an opening 12c.
Furthermore, the first cylindrical body 11 and the second cylindrical body 12 are preferably manufactured by, for example, vulcanization molding or injection molding of nitrile rubber (NBR) or injection molding of a thermoplastic elastomer.

ここで、第１筒状体１１及び第２筒状体１２の形状は、インロー構造を構成して互いに着脱可能に嵌合する構造であれば、特に制限はない。本実施形態では、例えば、第２筒状体１２の壁部１２ｂの外径寸法が、第１筒状体１１の壁部１１ｂの内径寸法以下の寸法に設定された態様として説明する。このように構成された第１筒状体１１及び第２筒状体１２では、それぞれの開口部１１ｃ，１２ｃを対向させるようにして第１筒状体１１内に第２筒状体１２を収納させて本体部１０が構成される。なお、本体部１０の外径寸法（第１筒状体１１の壁部１１ｂの外径寸法）は、後述する座繰り部に嵌合又は遊嵌されるように、座繰り部の内径寸法以下とされる。 Here, the shape of the first cylindrical body 11 and the second cylindrical body 12 is not particularly limited as long as it forms a spigot structure and is detachably fitted to each other. In the present embodiment, for example, a description will be given as an aspect in which the outer diameter dimension of the wall portion 12b of the second cylindrical body 12 is set to a dimension equal to or smaller than the inner diameter dimension of the wall portion 11b of the first cylindrical body 11. In the first cylindrical body 11 and the second cylindrical body 12 configured as described above, the second cylindrical body 12 is accommodated in the first cylindrical body 11 so that the openings 11c and 12c face each other. Thus, the main body 10 is configured. The outer diameter of the main body 10 (the outer diameter of the wall 11b of the first tubular body 11) is equal to or smaller than the inner diameter of the countersink so as to be fitted or loosely fitted to a countersink described later. It is said.

図１（ｂ），（ｃ）に示すように、第１筒状体１１の壁部１１ｂの内周面の開口部１１ｃ側には環状溝部１１ｄが少なくとも１条（本実施形態では１条）形成される。そして、第２筒状体１２の底部１２ａの周縁には環状溝部１１ｄに嵌合するフランジ部１２ｄが周方向に亘って形成される。このフランジ部１２ｄには、底面１２ｅに向かって縮径された傾斜面１２ｆが形成されている。 As shown in FIGS. 1B and 1C, at least one annular groove portion 11d is provided on the opening 11c side of the inner peripheral surface of the wall portion 11b of the first cylindrical body 11 (one in the present embodiment). It is formed. And the flange part 12d fitted to the annular groove part 11d is formed in the periphery of the bottom part 12a of the 2nd cylindrical body 12 over the circumferential direction. The flange portion 12d is formed with an inclined surface 12f having a diameter reduced toward the bottom surface 12e.

また、図１（ｂ），（ｃ）に示すように、第２筒状体１２の底部１２ａには、開口部１２ｃと底面１２ｅとを連通する貫通孔１２ｇが形成されている。
貫通孔１２ｇには、棒状の弾性体２０の一方の端部が挿入され、この一方の端部に形成された（一方の）円環部２１ａに、板状をなす固定板２２が嵌められる。ここで、固定板２２の長手方向の中央部分には、上記長手方向と直交する幅方向に亘って溝部２２ａが形成されており、この溝部２２ａに円環部２１ａの内周面が接合する。 As shown in FIGS. 1B and 1C, a through hole 12g that connects the opening 12c and the bottom surface 12e is formed in the bottom 12a of the second cylindrical body 12.
One end of a rod-shaped elastic body 20 is inserted into the through-hole 12g, and a fixed plate 22 having a plate shape is fitted into the (one) annular portion 21a formed at the one end. Here, a groove portion 22a is formed in the central portion of the fixing plate 22 in the longitudinal direction over the width direction orthogonal to the longitudinal direction, and the inner peripheral surface of the annular portion 21a is joined to the groove portion 22a.

このように、一方の端部が第２筒状体１２の貫通孔１２ｇに挿入された弾性体２０の一方の円環部２１ａに固定板２２が嵌め込まれ、この固定板２２が第２筒状体１２の底部１２ａに係止していることにより、第２筒状体１２に弾性体２０が強固に接続されることとなる。 In this way, the fixing plate 22 is fitted into the one annular portion 21a of the elastic body 20 having one end inserted into the through hole 12g of the second cylindrical body 12, and the fixing plate 22 is the second cylindrical shape. By being locked to the bottom 12 a of the body 12, the elastic body 20 is firmly connected to the second cylindrical body 12.

一方、弾性体２０の他方の端部は、図１（ｂ），（ｃ）に示すように、その端部に形成された（他方の）円環部２１ｂに、板状をなす固定板３０が嵌められる。ここで、固定板３０の長手方向の中央部分には、上記長手方向と直交する幅方向に亘って溝部３０ａが形成されており、この溝部３０ａに円環部２１ｂの内周面が接合する。この固定板３０長手方向の寸法は、後述する軸収納部の開口部の径よりも長く設定される。
ここで、弾性体２０は、例えば、ゴム（耐油性に優れたニトリルゴム等）で製造することが好ましく、固定板３０は、例えば、合成樹脂（ＰＯＭ、ＴＰＯ（ポリオレフィン系）の熱可塑性エラストマー等）で製造することが好ましい。 On the other hand, as shown in FIGS. 1B and 1C, the other end of the elastic body 20 has a plate-like fixing plate 30 on the (other) annular portion 21b formed at the end. Is fitted. Here, a groove portion 30a is formed in the central portion of the fixing plate 30 in the longitudinal direction over the width direction orthogonal to the longitudinal direction, and the inner peripheral surface of the annular portion 21b is joined to the groove portion 30a. The dimension in the longitudinal direction of the fixed plate 30 is set to be longer than the diameter of the opening of the shaft storage portion described later.
Here, the elastic body 20 is preferably made of, for example, rubber (nitrile rubber having excellent oil resistance), and the fixing plate 30 is made of, for example, a synthetic resin (POM, TPO (polyolefin-based) thermoplastic elastomer, or the like. ) Is preferable.

次に、本実施形態のストッパの設置態様について説明する。図２は、本実施形態のストッパの設置態様を示す図であり、（ａ）はストッパを設置する仮軸の側面図、（ｂ）はストッパを仮軸に設置したときの側面図、（ｃ）は、変形例として、スライダ抜け止めストッパを仮軸に設置したときの側面図である。 Next, the installation aspect of the stopper of this embodiment is demonstrated. FIGS. 2A and 2B are views showing an installation mode of the stopper according to the present embodiment, wherein FIG. 2A is a side view of a temporary shaft on which the stopper is installed, FIG. 2B is a side view when the stopper is installed on the temporary shaft, and FIG. ) Is a side view when a slider retaining stopper is installed on the temporary shaft as a modified example.

図２（ａ）に示すように、本実施形態のストッパ１が設置されるのは、直動案内装置の案内レールに接続してスライダをその案内レールに移送する仮軸に設けられた取り付け穴である。
ここで、図２（ａ）に示すように、直動案内装置は、仮軸１０１と、仮軸１０１の上側に配置される胴部及び両側に配置される脚部を有するスライダ１０２と、複数個の転動体（図示せず）とを備えている。
仮軸１０１及びスライダは、互いに対向配置されて転動体の転動通路を形成する転動面を有する。そして、転動体の転動により仮軸１０１及びスライダ１０２の一方が他方に対して相対的に直線運動する。
また、仮軸１０１には、取り付け穴１０４が長さ方向に複数個設けられる。この取り付け穴１０４は、スライダ１０２の移送先である案内レールをボルトで被取付部に取り付けるための取り付け穴と同じ規格で設けられる。
本実施形態のストッパ１は、この取り付け穴１０４に設置されることによって、スライダ１０２が仮軸１０１から外れることを防止する部材である。 As shown in FIG. 2A, the stopper 1 of the present embodiment is installed in a mounting hole provided in a temporary shaft that is connected to the guide rail of the linear motion guide device and transfers the slider to the guide rail. It is.
Here, as shown in FIG. 2A, the linear motion guide device includes a temporary shaft 101, a slider 102 having a body portion disposed on the upper side of the temporary shaft 101, and leg portions disposed on both sides, and a plurality of sliders. And rolling elements (not shown).
The temporary shaft 101 and the slider have rolling surfaces that are arranged to face each other and form a rolling passage of the rolling element. Then, one of the temporary shaft 101 and the slider 102 linearly moves relative to the other by the rolling of the rolling element.
The temporary shaft 101 is provided with a plurality of attachment holes 104 in the length direction. The mounting hole 104 is provided according to the same standard as the mounting hole for mounting the guide rail, which is the transfer destination of the slider 102, to the mounted portion with a bolt.
The stopper 1 of the present embodiment is a member that prevents the slider 102 from being detached from the temporary shaft 101 by being installed in the mounting hole 104.

＜取り付け穴＞
図２（ａ）に示すように、仮軸１０１に設けられる取り付け穴１０４（１０４Ａ，１０４Ｂ）は、座繰り部１４１（１４１Ａ，１４１Ｂ）と、軸収納部１４２（１４２Ａ，１４２Ｂ）とを有する。座繰り部１４１（１４１Ａ，１４１Ｂ）は、仮軸１０１の上面１０１ａに開口し、軸収納部１４２（１４２Ａ，１４２Ｂ）は、仮軸１０１の下面１０１ｂに開口している。ここで、軸収納部１４２の内径寸法は、座繰り部１４１の内径寸法より小さくされ、座繰り部１４１と軸収納部１４２とは連通している。すなわち、軸収納部１４２Ａの内径寸法は、座繰り部１４１Ａの内径寸法より小さくされ、座繰り部１４１Ａと軸収納部１４２Ａとは連通している。また、軸収納部１４２Ｂの内径寸法は、座繰り部１４１Ｂの内径寸法より小さくされ、座繰り部１４１Ｂと軸収納部１４２Ｂとは連通している。
すなわち、図２（ａ）に示す構成は、座繰り部１４１Ａの内周面とスライダ１０２の両端面とがほぼ面一となるように、取り付け穴１０４の間隔とスライダの移動方向の長さとが規定されているケースである。 <Mounting hole>
As shown in FIG. 2A, the mounting hole 104 (104A, 104B) provided in the temporary shaft 101 has a countersink portion 141 (141A, 141B) and a shaft storage portion 142 (142A, 142B). The countersunk portion 141 (141A, 141B) opens on the upper surface 101a of the temporary shaft 101, and the shaft storage portion 142 (142A, 142B) opens on the lower surface 101b of the temporary shaft 101. Here, the inner diameter dimension of the shaft storage part 142 is made smaller than the inner diameter dimension of the countersink part 141, and the countersink part 141 and the shaft storage part 142 communicate with each other. That is, the inner diameter dimension of the shaft storage portion 142A is smaller than the inner diameter dimension of the countersink portion 141A, and the countersink portion 141A and the shaft storage portion 142A communicate with each other. Further, the inner diameter dimension of the shaft storage portion 142B is made smaller than the inner diameter dimension of the countersink portion 141B, and the countersink portion 141B and the shaft storage portion 142B communicate with each other.
That is, in the configuration shown in FIG. 2A, the distance between the mounting holes 104 and the length of the slider in the moving direction are such that the inner peripheral surface of the countersink portion 141A and both end surfaces of the slider 102 are substantially flush with each other. This is the case specified.

このように仮軸１０１に設けられた取り付け穴１０４（１０４Ａ，１０４Ｂ）に対して、本実施形態のストッパ１Ａ，１Ｂは、図２（ｂ）に示すように、各本体部１０Ａ，１０Ｂが座繰り部１４１Ａ，１４１Ｂにそれぞれ嵌合又は遊嵌されている。そして、弾性体２０Ａ，２０Ｂによってそれぞれ本体部１０Ａ，１０Ｂと連結された固定板３０Ａ，３０Ｂが軸収納部１４２Ａ，１４２Ｂのそれぞれの開口部を亘るように仮軸１０１の下面１０１ｂに係止されている。すなわち、座繰り部１４１Ａの底部及び仮軸１０１の下面１０１ｂは、弾性体２０Ａの弾性力によって本体部１０Ａ及び固定板３０Ａによって付勢されている。一方、座繰り部１４１Ｂの底部及び仮軸１０１の下面１０１ｂは、弾性体２０Ｂの弾性力によって本体部１０Ｂ及び固定板３０Ｂによって付勢されている。
さらに、図２（ｃ）に示すように、変形例として、各本体部１０Ａ，１０Ｂの一部（例えば上部）にスライダ２０の移動方向に延設された延長部が形成されてもよい。この構成は、スライダ１０２の移動方向の長さが図２（ａ），（ｂ）で示したように、両端面が座繰り部１４１Ａの内周面に面一となるスライダ１０２よりも移動方向に短いスライダ１０２‘を用いた場合に有用である。すなわち、スライダ１０２の両端面は、各本体部１０Ａ，１０Ｂに形成された延長部によって挟まれ、固定されているのである。このように本体部１０に延長部を形成することにより、様々な長さのスライダの固定に対応することができる。 As shown in FIG. 2B, the stoppers 1A and 1B of this embodiment are seated on the mounting holes 104 (104A and 104B) provided in the temporary shaft 101 as shown in FIG. The feeding portions 141A and 141B are fitted or loosely fitted, respectively. Then, the fixing plates 30A and 30B connected to the main body portions 10A and 10B by the elastic bodies 20A and 20B are engaged with the lower surface 101b of the temporary shaft 101 so as to extend over the respective openings of the shaft storage portions 142A and 142B. Yes. That is, the bottom of the counterbore 141A and the lower surface 101b of the temporary shaft 101 are urged by the main body 10A and the fixed plate 30A by the elastic force of the elastic body 20A. On the other hand, the bottom of the counterbore 141B and the lower surface 101b of the temporary shaft 101 are urged by the main body 10B and the fixed plate 30B by the elastic force of the elastic body 20B.
Further, as shown in FIG. 2C, as a modified example, an extension portion extending in the moving direction of the slider 20 may be formed on a part (for example, the upper portion) of each of the main body portions 10A and 10B. In this configuration, as shown in FIGS. 2A and 2B, the length of the slider 102 in the moving direction is longer than the slider 102 in which both end surfaces are flush with the inner peripheral surface of the countersink portion 141A. This is useful when a short slider 102 'is used. That is, both end surfaces of the slider 102 are sandwiched and fixed by the extension portions formed in the main body portions 10A and 10B. Thus, by forming an extension part in the main-body part 10, it can respond to fixation of the slider of various length.

次に、本実施形態のストッパの取り付け、及び取り外しについて説明する。図３（ａ）〜（ｄ）は本実施形態のストッパの取り付け過程を示す断面図であり、（ｅ）〜（ｈ）は本実施形態のストッパを取り外す過程を示す断面図であり、（ｉ）は変形例としてのストッパの取り付け過程を示す断面図である。 Next, attachment and removal of the stopper according to the present embodiment will be described. 3A to 3D are cross-sectional views showing a process of attaching the stopper of the present embodiment, and FIGS. 3E to H are cross-sectional views showing a process of removing the stopper of the present embodiment. ) Is a cross-sectional view showing a process of attaching a stopper as a modified example.

図３（ａ）に示すように、まず、ストッパ１の固定板３０を座繰り穴１４１の開口部に対向させて、固定板３０から取り付け穴１０４に挿入する。そしてストッパ１を取り付け穴１０４にさらに挿入すると、図３（ｂ）に示すように、固定板３０が座繰り部１４１に対して変形する。さらに、ストッパ１を取り付け穴１０４に挿入すると、図３（ｃ）に示すように、固定板３０が軸収納部１４２に対して変形する。その後、ストッパ１を取り付け穴１０４にさらに挿入すると、図３（ｄ）に示すように、本体部１０が座繰り穴１４１に遊嵌又は嵌合し、固定板３０が仮軸１０１の下面１０１ｂから出て、自然長に戻ると共に、軸収納部１４２の開口部を亘るように架かり、係止される。このようにしてストッパ１が取り付け穴１０４に固定される。 As shown in FIG. 3A, first, the fixing plate 30 of the stopper 1 is inserted into the mounting hole 104 from the fixing plate 30 so as to face the opening of the counterbore hole 141. When the stopper 1 is further inserted into the mounting hole 104, the fixing plate 30 is deformed with respect to the countersink portion 141 as shown in FIG. Further, when the stopper 1 is inserted into the mounting hole 104, the fixing plate 30 is deformed with respect to the shaft accommodating portion 142 as shown in FIG. Thereafter, when the stopper 1 is further inserted into the mounting hole 104, the main body 10 is loosely fitted or fitted into the counterbore hole 141 as shown in FIG. After exiting and returning to the natural length, it spans the opening of the shaft storage part 142 and is locked. In this way, the stopper 1 is fixed to the mounting hole 104.

次に、ストッパ１を仮軸１０１から取り外す過程は、図３（ｅ）に示すように、まず、作業者が本体部１０を把持するなどしてストッパ１を上方に引っ張る。そうすると、図３（ｆ）に示すように、固定板３０が、仮軸１０１の下面１０１ｂに引っかかる。そして、さらに作業者がストッパ１を上方に引っ張ると、図３（ｇ）に示すように、固定板３０が軸収納部１４２の内周面に引っかかり弾性体２０の円環部２１ｂから徐々に外れ、図３（ｈ）に示すように、固定板３０が弾性体２０から外れ、下方に落下し、ストッパ１を仮軸１０１から取り外すことができる。 Next, in the process of removing the stopper 1 from the temporary shaft 101, as shown in FIG. 3E, first, the operator pulls the stopper 1 upward, for example, by gripping the main body portion 10. Then, as shown in FIG. 3 (f), the fixing plate 30 is caught on the lower surface 101 b of the temporary shaft 101. When the operator further pulls the stopper 1 upward, as shown in FIG. 3G, the fixing plate 30 is caught on the inner peripheral surface of the shaft storage portion 142 and gradually comes off from the annular portion 21 b of the elastic body 20. As shown in FIG. 3 (h), the fixing plate 30 is detached from the elastic body 20, falls downward, and the stopper 1 can be detached from the temporary shaft 101.

なお、本実施形態のストッパ１の取り付け方法の変形例として、図３（ｉ）に示すように、固定板３０を予め外したストッパ１’を用いてもよい。具体的には、固定板３０を予め外したストッパ１’の本体部１０を座繰り穴１４１に遊嵌又は嵌合させる。そうすると、本体部１０に一方の端部が連結された弾性体２０は、軸収納部１４２に挿通し、仮軸１０１の下面１０１ｂから他方の端部（他方の円環部２１ｂ）が露出する。そこで、他方の端部（他方の円環部２１ｂ）に固定板３０を嵌めることで、ストッパ１が取り付け穴１０４に固定される。 As a modification of the method for attaching the stopper 1 of the present embodiment, as shown in FIG. 3 (i), a stopper 1 'from which the fixing plate 30 has been removed in advance may be used. Specifically, the main body portion 10 of the stopper 1 ′ with the fixing plate 30 removed in advance is loosely fitted or fitted into the counterbore hole 141. Then, the elastic body 20 having one end connected to the main body portion 10 is inserted into the shaft housing portion 142, and the other end portion (the other annular portion 21b) is exposed from the lower surface 101b of the temporary shaft 101. Therefore, the stopper 1 is fixed to the mounting hole 104 by fitting the fixing plate 30 to the other end (the other annular portion 21b).

このように、座繰り部１４１の底部及び仮軸１０１の下面１０１ｂは、弾性体２０の弾性力によって本体部１０及び固定板３０によって付勢されているので、ストッパ１は取り付け穴１０４に容易に着脱可能に設置される。そのため、２つのストッパ１Ａ，１Ｂで挟まれたスライダは確実に脱落が防止され、着脱が容易なストッパ１Ａ，１Ｂを用いているので、作業効率も向上する。 As described above, the bottom portion of the counterbore portion 141 and the lower surface 101b of the temporary shaft 101 are urged by the main body portion 10 and the fixing plate 30 by the elastic force of the elastic body 20, so that the stopper 1 can be easily placed in the mounting hole 104. It is installed detachably. Therefore, the slider sandwiched between the two stoppers 1A and 1B is reliably prevented from falling off, and the stoppers 1A and 1B that are easy to attach and detach are used, so that the working efficiency is improved.

このように、スライダをボール（転動体）と共に輸送するときに、スライダからボールが離脱しないように仮軸１０１及びストッパ１が用いられる。すなわち、仮軸１０１の取り付け穴１０４，１０４に、スライダ１０４を挟むようにストッパ１，１を設置し、仮軸１０１と案内レールとを連結し、連結した端部側のストッパ１を取り外すだけで、仮軸１０１のボール及びスライダを案内レールに移送することができる。
一方、仮軸１０１において、案内レールに連結した端部側と反対側のストッパ１はそのまま取り付け穴に設置しておくことで、仮軸１０１上のスライダを案内レール側と反対側に移動してしまうことを防止できる。 Thus, when the slider is transported together with the ball (rolling element), the temporary shaft 101 and the stopper 1 are used so that the ball is not detached from the slider. That is, the stoppers 1 and 1 are installed in the mounting holes 104 and 104 of the temporary shaft 101 so as to sandwich the slider 104, the temporary shaft 101 and the guide rail are connected, and the connected stopper 1 on the end side is removed. The ball and slider of the temporary shaft 101 can be transferred to the guide rail.
On the other hand, in the temporary shaft 101, the stopper 1 on the side opposite to the end connected to the guide rail is installed in the mounting hole as it is, so that the slider on the temporary shaft 101 is moved to the side opposite to the guide rail side. Can be prevented.

ここで、図１（ｃ）に示す第２筒状体１２に形成された傾斜面１２ｆは、第２筒状体１２から第１筒状体１１を取り外しやすいために設けられる。また、この傾斜面１２ｆが設けられる場合、第２筒状体１２の底部１２ａから立設される壁部１２ｂの高さ寸法ｈを、後述する座繰り部１４１の高さ（深さ）寸法Ｈ（図２（ａ）参照）より小さく設定することが好ましい。 Here, the inclined surface 12f formed in the second cylindrical body 12 shown in FIG. 1C is provided in order to easily remove the first cylindrical body 11 from the second cylindrical body 12. Further, when the inclined surface 12f is provided, the height dimension h of the wall portion 12b erected from the bottom portion 12a of the second cylindrical body 12 is set to the height (depth) dimension H of the counterbore portion 141 described later. It is preferable to set smaller than (refer FIG. 2 (a)).

このように、傾斜面１２ｆが形成され、第１筒状体１１と第２筒状体１２との接触面積が小さいことにより、第２筒状体１２から第１筒状体１１が取り外しやすくなる。そして、高さ寸法ｈ及び高さ（深さ）寸法Ｈを上述のように規定することで、第２筒状体１２から第１筒状体１１を取り外すだけで、取り付け穴１０４からストッパ１が突出しない状態にできる。すなわち、上述したように、弾性体２０や固定板３０と共にストッパ１を取り外さなくても、連結した端部側のストッパ１の第１筒状体１１を外すだけで、仮軸１０１のボール及びスライダを案内レールに移送することができる。 Thus, the inclined surface 12f is formed, and the first cylindrical body 11 can be easily detached from the second cylindrical body 12 because the contact area between the first cylindrical body 11 and the second cylindrical body 12 is small. . Then, by defining the height dimension h and the height (depth) dimension H as described above, the stopper 1 can be removed from the mounting hole 104 simply by removing the first cylindrical body 11 from the second cylindrical body 12. It can be in a state of not protruding. That is, as described above, without removing the stopper 1 together with the elastic body 20 and the fixed plate 30, the ball and the slider of the temporary shaft 101 can be removed simply by removing the first cylindrical body 11 of the stopper 1 on the connected end side. Can be transferred to the guide rail.

ここで、壁部１２ｂの高さ寸法ｈが座繰り部１４１の高さ（深さ）寸法Ｈよりも大きいと、図３（ｊ）に示すように、ストッパ１の外形寸法が予め決まっているため、第１筒状体１１の厚みが薄くなる。その結果、第１筒状体１１（ストッパ１）の剛性が低下し、輸送中にスライダが仮軸１０１上を移動又は振動してしまい、フレッチングが発生することがある。
このような問題に対しても、高さ寸法ｈ及び高さ（深さ）寸法Ｈを上述のように規定することで、ストッパ１の剛性を維持できるので、輸送のために仮軸に嵌合させたスライダに、フレッチング等の発生を低減させることができる。 Here, when the height dimension h of the wall portion 12b is larger than the height (depth) dimension H of the countersink portion 141, the outer dimension of the stopper 1 is predetermined as shown in FIG. Therefore, the thickness of the 1st cylindrical body 11 becomes thin. As a result, the rigidity of the first cylindrical body 11 (stopper 1) is lowered, and the slider may move or vibrate on the temporary shaft 101 during transportation, thereby causing fretting.
Against such problems, the rigidity of the stopper 1 can be maintained by defining the height dimension h and the height (depth) dimension H as described above, so it is fitted to a temporary shaft for transportation. It is possible to reduce the occurrence of fretting or the like on the slider.

（第２実施形態）
次に、ストッパの第２実施形態について図面を参照して説明する。なお、本実施形態は、仮軸に対するストッパの設置態様が前述の第１実施形態と異なるだけであるので、上述の第１実施形態と同じ符号を付した同様の構成については説明を省略する。図４は、本実施形態のストッパの設置態様を示す図であり、ストッパを仮軸に設置したときの側面図である。 (Second Embodiment)
Next, a second embodiment of the stopper will be described with reference to the drawings. In addition, since this embodiment differs only in the installation aspect of the stopper with respect to a temporary shaft from the above-mentioned 1st Embodiment, description is abbreviate | omitted about the same structure which attached | subjected the same code | symbol as the above-mentioned 1st Embodiment. FIG. 4 is a view showing an installation mode of the stopper of the present embodiment, and is a side view when the stopper is installed on the temporary shaft.

図４に示すように、本実施形態のストッパ１は、一方の座繰り部１４１Ｂに本体部１０が嵌合又は遊嵌され、他方の座繰り部１４１Ａに固定板３０が係止されている。そして、弾性体２０の一方は、一方の軸収納部１４２Ｂに挿通して本体部１０に連結され、弾性体２０の他方は、他方の軸収納部１４２Ａに挿通して固定板３０に連結されている。弾性体２０の中間部は仮軸１０１の下面１０１ｂに密着している。なお、本実施形態の弾性体２０は上述の第１実施形態における弾性体よりも長いものが採用されるか、より弾性力が大きい材料が採用される。 As shown in FIG. 4, in the stopper 1 of the present embodiment, the main body portion 10 is fitted or loosely fitted to one counterbore portion 141B, and the fixing plate 30 is locked to the other counterbore portion 141A. One of the elastic bodies 20 is inserted into one shaft storage portion 142B and connected to the main body portion 10, and the other elastic body 20 is inserted into the other shaft storage portion 142A and connected to the fixed plate 30. Yes. The middle part of the elastic body 20 is in close contact with the lower surface 101 b of the temporary shaft 101. In addition, the elastic body 20 of this embodiment employ | adopts a thing longer than the elastic body in the above-mentioned 1st Embodiment, or a material with larger elastic force is employ | adopted.

ここで、他方の座繰り部１４１Ａに係止されている固定板３０は、その一端が座繰り部１４１Ａの底面（及び側面）に係止され、他端側の下面が座繰り部１４１Ａの開口部の周縁部に架かって取り付け穴１０４Ａから固定板３０の他端部が突出している。すなわち、固定板３０の長手方向の寸法は、座繰り部１４１Ａの底面と座繰り部１４１Ａの開口部の周縁部とに固定板３０を懸架させたときに取り付け穴１０４Ａから固定板３０の端部が突出する長さとされる。 Here, one end of the fixing plate 30 locked to the other countersink portion 141A is locked to the bottom surface (and side surface) of the countersink portion 141A, and the lower surface on the other end side is an opening of the countersink portion 141A. The other end of the fixing plate 30 protrudes from the mounting hole 104A over the peripheral edge of the portion. That is, the dimension in the longitudinal direction of the fixed plate 30 is such that the end of the fixed plate 30 from the mounting hole 104A when the fixed plate 30 is suspended from the bottom surface of the counterbored portion 141A and the peripheral edge of the opening of the counterbored portion 141A. Is the length that protrudes.

次に、本実施形態のストッパの取り付け、及び取り外しについて説明する。図５（ａ）〜（ｃ）は本実施形態のストッパの取り付け過程を示す断面図であり、（ｄ）は本実施形態のストッパを取り外す過程を示す断面図であり、（ｅ）は変形例としてのストッパの取り付け過程を示す断面図である。 Next, attachment and removal of the stopper according to the present embodiment will be described. 5A to 5C are cross-sectional views showing a process of attaching the stopper of the present embodiment, FIG. 5D is a cross-sectional view showing a process of removing the stopper of the present embodiment, and FIG. It is sectional drawing which shows the attachment process of the stopper as.

図５（ａ）に示すように、まず、固定板３０を外したストッパ１’を、弾性体２０、及び本体部１０の順で一方の座繰り穴１４１Ｂの開口部から挿入し、弾性体２０の他方の端部は、仮軸１０１の下面１０１ｂを通って他方の座繰り穴１４１Ａの開口部から突出させる。 As shown in FIG. 5A, first, the stopper 1 ′ from which the fixing plate 30 has been removed is inserted from the opening of one counterbore hole 141B in the order of the elastic body 20 and the main body 10, and the elastic body 20 is then inserted. The other end portion of the temporary shaft 101 passes through the lower surface 101b of the temporary shaft 101 and protrudes from the opening portion of the other countersink hole 141A.

そして、図５（ｂ）に示すように、弾性体２０の他方の端部（他方の円環部２１ｂ）に固定板３０を嵌め込む。このとき、嵌め込まれた固定板３０は、その一端が座繰り部１４１Ａの底面（及び側面）に係止され、他端側の下面が座繰り部１４１Ａの開口部の周縁部に架かって取り付け穴１０４Ａから固定板３０の他端部が突出するように取り付け穴１０４Ａに設置される。このように固定板３０が設置されることにより、図５（ｃ）に示すように、固定板３０がスライダ１０２から力Ｆを受けて、抗力Ｎと摩擦力μＦとによってスライダ１０２は固定される。 Then, as shown in FIG. 5 (b), the fixing plate 30 is fitted into the other end portion (the other annular portion 21 b) of the elastic body 20. At this time, one end of the fitted fixing plate 30 is locked to the bottom surface (and side surface) of the countersink portion 141A, and the lower surface on the other end side spans the peripheral portion of the opening of the countersink portion 141A. The fixing plate 30 is installed in the mounting hole 104A so that the other end of the fixing plate 30 protrudes from 104A. By installing the fixing plate 30 as described above, as shown in FIG. 5C, the fixing plate 30 receives the force F from the slider 102, and the slider 102 is fixed by the drag N and the frictional force μF. .

次に、ストッパ１を仮軸１０１から取り外す過程は、まず、作業者が本体部１０を把持するなどしてストッパ１を上方に引っ張る。そうすると、固定板３０が、仮軸１０１の下面１０１ｂに引っかかる。そして、さらに作業者がストッパ１を上方に引っ張ると、図５（ｄ）に示すように、固定板３０が弾性体２０から外れ、下方に落下し、ストッパ１を仮軸１０１から取り外すことができる。 Next, in the process of removing the stopper 1 from the temporary shaft 101, first, the operator pulls the stopper 1 upward by gripping the main body 10 or the like. Then, the fixing plate 30 is caught on the lower surface 101b of the temporary shaft 101. When the operator further pulls the stopper 1 upward, as shown in FIG. 5 (d), the fixing plate 30 is detached from the elastic body 20, falls downward, and the stopper 1 can be detached from the temporary shaft 101. .

なお、本実施形態のストッパ１の取り付け方法の変形例として、図５（ｅ）に示すように、固定板３０を弾性体２０の他方の端部２１ｂに連結したまま、軸収納部１４２Ａの開口部から挿入してもよい。すなわち座繰り穴１４１Ｂに本体部を遊嵌又は嵌合させた状態で、軸収納部１４２Ａの開口部から固定板３０を弾性変形させながら軸収納部１４２Ａ内に挿通させる。そして、図５（ｆ）に示すように、固定板３０が座繰り部１４１Ａに達したときに、固定板３０を、座繰り部１４１Ａの底面と座繰り部１４１Ａの開口部の周縁部とに懸架させると共に取り付け穴１０４Ａから固定板の端部を突出させる。 As a modification of the method of attaching the stopper 1 of the present embodiment, as shown in FIG. 5E, the opening of the shaft housing portion 142A is maintained while the fixing plate 30 is connected to the other end portion 21b of the elastic body 20. You may insert from a part. That is, with the main body portion loosely fitted or fitted into the counterbore 141B, the fixing plate 30 is inserted into the shaft housing portion 142A while being elastically deformed from the opening of the shaft housing portion 142A. Then, as shown in FIG. 5 (f), when the fixed plate 30 reaches the countersink portion 141A, the fixed plate 30 is placed on the bottom surface of the countersink portion 141A and the peripheral portion of the opening of the countersink portion 141A. It is suspended and the end of the fixing plate is protruded from the mounting hole 104A.

このような固定板及び弾性体を用いることによって、１つのストッパでスライダを確実に、かつ効率よく固定することができる。 By using such a fixing plate and an elastic body, the slider can be reliably and efficiently fixed with one stopper.

以上、本発明に係る直動装置について説明したが、本発明に係る直動装置は、上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しなければ種々の変形が可能である。 Although the linear motion device according to the present invention has been described above, the linear motion device according to the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. .

１スライダ抜け止め用ストッパ（ストッパ）
１０本体部
１１第１枠体
１１ａ蓋部
１１ｂ壁部
１１ｃ開口部
１１ｄ円環溝部
１２第２枠体
１２ａ底部
１２ｂ壁部
１２ｃ開口部
１２ｄフランジ部
１２ｅ底面
１２ｆ傾斜部
１２ｇ貫通孔
２０弾性部材
２１本体
２１ａ（一方の）円環部
２１ｂ（他方の）円環部
２２固定板
２２ａ溝部
３０固定板
３０ａ溝部
１０１仮軸 1 Slider stopper (stopper)
DESCRIPTION OF SYMBOLS 10 Main-body part 11 1st frame 11a Cover part 11b Wall part 11c Opening part 11d Ring groove part 12 2nd frame 12a Bottom part 12b Wall part 12c Opening part 12d Flange part 12e Bottom surface 12f Inclination part 12g Through-hole 20 Elastic member 21 Main body 21a (One) annular part 21b (Other) annular part 22 Fixed plate 22a Groove part 30 Fixed plate 30a Groove part 101 Temporary shaft

Claims

The slider is installed on the upper side through a plurality of rolling elements so that it can be transported in the length direction of the temporary shaft.
The mounting hole has a countersink portion that opens to the upper surface of the temporary shaft and a shaft storage portion that has a smaller diameter than the countersink portion and communicates with the countersink portion and opens to the lower surface of the mounting hole. And
A cylindrical main body portion that is fitted or loosely fitted to the countersink portion, a plate shape, a fixed plate that is longer than the diameter of the opening of the shaft storage portion, and inserted into the shaft storage portion, A slider retaining stopper, comprising: an elastic body having an end connected to the main body and the other end connected to the fixing plate.

2. The slider retaining stopper according to claim 1, wherein the main body portion includes a first tubular body and a second tubular body having an inlay structure and detachably fitted to the first tubular body.

The first cylindrical body has a covered and bottomless shape, and an annular groove is formed on the inner peripheral surface on the opening side,
The second cylindrical body has a non-covered bottomed shape with an outer diameter of a size equal to or smaller than the inner diameter of the first cylindrical body, and a flange portion fitted in the annular groove portion extends in the circumferential direction on the peripheral surface of the bottom portion. The flange portion is formed with an inclined surface whose diameter is reduced toward the bottom surface,
The inner peripheral surface of the first cylindrical body and the outer peripheral surface of the second cylindrical body are made to face each other, and the flange portion is fitted into the annular groove portion, so that the second cylindrical body is stored in the first cylindrical body. The slider retaining stopper according to claim 1, wherein the main body is configured by causing the slider to come off.

The longitudinal dimension of the fixing plate is such that the end of the fixing plate protrudes from the mounting hole when the fixing plate is suspended from the bottom surface of the counterboring portion and the peripheral edge portion of the opening of the counterboring portion. The slider retaining stopper according to any one of claims 1 to 3, wherein the stopper is a length to be stopped.