JPS627853Y2 - - Google Patents

Info

Publication number
JPS627853Y2
JPS627853Y2 JP1981008507U JP850781U JPS627853Y2 JP S627853 Y2 JPS627853 Y2 JP S627853Y2 JP 1981008507 U JP1981008507 U JP 1981008507U JP 850781 U JP850781 U JP 850781U JP S627853 Y2 JPS627853 Y2 JP S627853Y2
Authority
JP
Japan
Prior art keywords
guide member
rolling
retainer
guide
shaped
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.)
Expired
Application number
JP1981008507U
Other languages
Japanese (ja)
Other versions
JPS57122825U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1981008507U priority Critical patent/JPS627853Y2/ja
Publication of JPS57122825U publication Critical patent/JPS57122825U/ja
Application granted granted Critical
Publication of JPS627853Y2 publication Critical patent/JPS627853Y2/ja
Expired legal-status Critical Current

Links

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
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/306—Means to synchronise movements
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles

Landscapes

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

Description

【考案の詳細な説明】 この考案は、Ｕ字形とした可撓部材を用いて保
持器の位置ずれを防止した直動案内装置に関す
る。[Detailed Description of the Invention] This invention relates to a linear motion guide device that uses a U-shaped flexible member to prevent displacement of a cage.

第１の案内部材および第２の案内部材に夫々形
成した互いに対向する転動面の間に板状の保持器
に保持された転動体を介在させ、第１の案内部材
と第２の案内部材に相対直線運動を可能とした直
動案内装置は、構造がコンパクトであり、また、
第１の案内部材に対する第２の案内部材の相対運
動が転動体のころがりにより行なわれるので案内
部材の相対運動に対する抵抗がきわめて少い等の
利点を有するので、パルスモータを用いて駆動す
るXY移動台等の案内要素として多く用いられて
いる。 A rolling element held by a plate-shaped retainer is interposed between mutually opposing rolling surfaces formed on the first guide member and the second guide member, and the first guide member and the second guide member The linear motion guide device that enables relative linear motion has a compact structure and
Since the relative movement of the second guide member with respect to the first guide member is performed by rolling of the rolling elements, there is an advantage that there is very little resistance to the relative movement of the guide member, so XY movement driven by a pulse motor is possible. It is often used as a guide element for tables, etc.

しかし、この直動案内装置は、第１の案内部材
と第２の案内部材の相対運動を多数回繰返すと第
１の案内部材および第２の案内部材に対する保持
器の相対的な位置が当初の組付位置から案内部材
のいずれか一方の端部に向つてずれ、転動体が案
内部材の片方の側にかたよるので荷重支持状態が
変化し、保持器の位置ずれが大きくなると転動体
が案内部材から外れてしまうという不具合があ
る。 However, in this linear motion guide device, when the relative motion between the first guide member and the second guide member is repeated many times, the relative position of the retainer with respect to the first guide member and the second guide member changes to the initial position. As the cage shifts toward either end of the guide member from the assembly position, the rolling elements shift to one side of the guide member, resulting in a change in the load support state. If the cage misalignment becomes large, the rolling elements shift toward one end of the guide member. There is a problem with it coming off.

この保持器の位置ずれは、案内部材の転動面、
転動体、保持器の単体精度および組立精度または
作用荷重、動作条件等の不均一が原因と考えられ
るが、これらの要因の影響は小さくすることはで
きても完全に取除くことは困難である。 This displacement of the retainer is caused by the rolling surface of the guide member,
The cause is thought to be the individual precision and assembly precision of the rolling elements and cage, or unevenness in applied loads, operating conditions, etc., but although the influence of these factors can be reduced, it is difficult to completely eliminate them. .

またXY移動台等は、使用にあたつて作業能率
を向上させるため非常に高速でかつ高頻度な作動
をさせるものが多いので、保持器の位置ずれによ
り移動台の機能を損うことが発生し易い。 In addition, many XY moving tables operate at very high speeds and frequently in order to improve work efficiency, so the function of the moving table may be impaired due to misalignment of the retainer. Easy to do.

保持器の位置ずれによる事故を防止した直動案
内装置としては、案内部材の端部にストツパー片
を固着し保持器がずれた場合保持器をストツパー
片に当接させて保持器の脱落を防止するものが知
られているが、このものは、保持器がストツパー
片に当接し拘束されると、案内部材の転動面の間
に介在する転動体は、転動面に対してすべりを生
ずることになり、転動体または案内部材の転動面
に摩耗等の損傷を生じさせるという欠点があり、
また、保持器とストツパー片の当接による振動、
抵抗により作動特性が悪くなるという欠点があ
る。 A linear motion guide device that prevents accidents caused by cage misalignment has a stopper piece fixed to the end of the guide member, and if the cage moves, the cage comes into contact with the stopper piece to prevent the cage from falling off. However, when the retainer comes into contact with the stopper piece and is restrained, the rolling elements interposed between the rolling surfaces of the guide member slip against the rolling surfaces. This has the disadvantage of causing damage such as wear to the rolling surfaces of the rolling elements or guide members.
In addition, vibration due to contact between the retainer and the stopper piece,
The disadvantage is that the resistance deteriorates the operating characteristics.

また、他の直動案内装置では、保持器と第１の
案内部材との間および保持器と第２の案内部材と
の間にばねを介在させ保持器の両端に等しい反対
方向の力を作用させ常に保持器を正常位置に保つ
ようにしたものも知られている例えば、特公昭54
−30464号が、このものは、第１の案内部材と第
２の案内部材の相対移動にともなつて案内部材を
移動させるに要する力が変化するため正確な作動
を得ることが困難であるという欠点がある。 In other linear motion guide devices, springs are interposed between the cage and the first guide member and between the cage and the second guide member to apply equal and opposite forces to both ends of the cage. It is also known that the retainer is always kept in the normal position.
No. 30464 states that it is difficult to obtain accurate operation because the force required to move the guide member changes as the first guide member and second guide member move relative to each other. There are drawbacks.

さらに、他の直動案内装置では、保持器の移動
量が案内部材の移動量の1/2となるように歯車、
レバーまたは滑車等の機構を用いて案内部材に対
する保持器の位置を規制するようにしたものも知
られているが、このものは、機構が複雑であり装
置が高価であるうえ案内部材を移動させる時の慣
性が大きいという欠点がある。 Furthermore, in other linear motion guide devices, gears are arranged so that the amount of movement of the retainer is 1/2 of the amount of movement of the guide member.
Some devices are known in which the position of the retainer relative to the guide member is controlled using a mechanism such as a lever or a pulley, but this mechanism is complicated, the device is expensive, and the guide member must be moved. The disadvantage is that the inertia of time is large.

この考案は、前記従来の直動案内装置の欠点に
注目してなされたもので、その目的とするところ
は、簡単な構造であつて保持器の位置ずれを起さ
ず高速動作が可能な直動案内装置を提供するにあ
る この目的を達成するため、この考案は、保持器
に保持された転動体の転動により軸方向に相対移
動可能とされている２つの案内部材に転動体の転
動移動方向と平行かつ互いに対向する軸方向の受
面を夫々設け、該受面に夫々一方の端部が固定さ
れ該受面に当接して軸方向に延びる２つの直線部
分と該直線部分の他方の端部に連続した半円弧状
の曲り部分とを有するＵ字形の可撓部材を配設
し、可撓部材の前記曲り部分の中央部に係合して
保持器の軸方向移動を拘束する係合部を前記保持
器に設けるようにしたのである。 This invention was devised by paying attention to the drawbacks of the conventional linear motion guide device, and its purpose is to provide a linear motion guide device with a simple structure that allows high-speed operation without causing any displacement of the cage. To provide a motion guide device. In order to achieve this object, this invention provides two guide members that are movable relative to each other in the axial direction by the rolling of the rolling elements held in a cage. axial bearing surfaces parallel to the movement direction and facing each other are provided, and two straight portions each having one end fixed to the bearing surfaces and extending in the axial direction in contact with the bearing surfaces; A U-shaped flexible member having a continuous semicircular curved portion at the other end is disposed, and engages with the center of the curved portion of the flexible member to restrain axial movement of the retainer. Accordingly, the retainer is provided with an engaging portion for engaging the retainer.

次に、この考案の第１の実施例を第１図乃至第
４図により説明する。 Next, a first embodiment of this invention will be explained with reference to FIGS. 1 to 4.

第１の案内部材１は、四角状横断面を有する縦
長のブロツクで、長手方向の一つの面にＶ形の転
動溝２が軸方向に形成され、転動溝２を形成した
面に対し直角な一方の側面端部には前記面に平行
な受面３を有する張出部４が形成されている。 The first guide member 1 is a vertically elongated block having a square cross section, and has a V-shaped rolling groove 2 formed in the axial direction on one surface in the longitudinal direction. A projecting portion 4 having a receiving surface 3 parallel to the surface is formed at one end of the right-angled side surface.

第２の案内部材５は、第１の案内部材１と対称
な形状を有する縦長のブロツクで、長手方向の一
つの面にＶ形の転動溝６が軸方向に形成され、転
動溝６を形成した面に対し直角な一方の側面端部
には前記面に平行な受面７を有する張出部８が形
成されている。 The second guide member 5 is a vertically elongated block having a shape symmetrical to the first guide member 1, and has a V-shaped rolling groove 6 formed in the axial direction on one surface in the longitudinal direction. A projecting portion 8 having a receiving surface 7 parallel to the surface is formed at one end of the side surface perpendicular to the surface.

第１の案内部材と第２の案内部材５は、夫々の
転動溝２，６および受面３，７が互いに対向する
配置とされている。 The first guide member and the second guide member 5 are arranged such that their respective rolling grooves 2 and 6 and receiving surfaces 3 and 7 face each other.

第１の案内部材の転動溝２と第２の案内部材の
転動溝６との間には、多数のボール９が転動自在
に配され、第１の案内部材１と第２の案内部材５
は、ボール９の転動によつて軸方向相対運動可能
とされている。 Between the rolling groove 2 of the first guide member and the rolling groove 6 of the second guide member, a large number of balls 9 are arranged so as to be able to freely roll. Part 5
are capable of relative axial movement by the rolling of the balls 9.

ボール９は、第１の案内部材１と第２の案内部
材５との間の空間に配された板状の保持器１０に
より互に離間され且つ回動自在に保持されてい
る。 The balls 9 are held apart from each other and rotatably held by a plate-shaped holder 10 arranged in a space between the first guide member 1 and the second guide member 5.

可撓部材１１は、薄い板材で作られた帯状の部
材で、第１の案内部材の受面３に当接し軸方向に
延びる直線部分１２と、第２の案内部材の受面７
に当接し軸方向に延びる直線部分１２と、第２の
案内部材の受面７にに当接し軸方向に延びる直線
部分１３およびこの直線部分１２，１３に連続す
る半円弧状の曲り部分１４を有するＵ字形とさ
れ、一方の端部がねじ１５により第１の案内部材
の受面３の端部に固着され、他の一方の端部がね
じ１６により第２の案内部材の受面７の端部に固
着されている。 The flexible member 11 is a band-shaped member made of a thin plate material, and includes a straight portion 12 that abuts the receiving surface 3 of the first guide member and extends in the axial direction, and a receiving surface 7 of the second guide member.
a straight line portion 12 that abuts on and extends in the axial direction, a straight line portion 13 that abuts on the receiving surface 7 of the second guide member and extends in the axial direction, and a semicircular arc-shaped curved portion 14 that is continuous with the straight line portions 12 and 13. One end is fixed to the end of the receiving surface 3 of the first guide member by a screw 15, and the other end is fixed to the end of the receiving surface 7 of the second guide member by a screw 16. fixed at the end.

保持器１０には、可撓部材の曲り部分１４の中
央部分に対応する位置に狭い縦溝を形成する突起
１７，１８を設け、この突起１７，１８により形
成された係合部である縦溝に可撓部材の曲り部分
１４の中央部分が滑動自在に係合し保持器１０は
軸方向の移動を拘束されている。 The retainer 10 is provided with protrusions 17 and 18 that form narrow longitudinal grooves at positions corresponding to the central portions of the bent portions 14 of the flexible member, and the longitudinal grooves that are the engagement portions formed by the protrusions 17 and 18 are provided. The central portion of the bending portion 14 of the flexible member is slidably engaged with the retainer 10, and the retainer 10 is restrained from moving in the axial direction.

可撓部材の曲り部分１４は、第１の案内部材１
に対し第２の案内部材５が第３図に示すように右
方に移動すると、第２の案内部材の受面７に接す
る直線部分１３は第２の案内部材５の移動量の1/
２だけ減じ、第１の案内部材の受面３に接する直
線部分１２は第２の案内部材５の移動量の1/2だ
け増えることになり、第１の案内部材１から見る
と可撓部材の曲り部分１４は、第２の案内部材５
の移動量の1/2だけ右方に移動することになる。 The bent portion 14 of the flexible member is connected to the first guide member 1
On the other hand, when the second guide member 5 moves to the right as shown in FIG.
2, and the linear portion 12 in contact with the receiving surface 3 of the first guide member increases by 1/2 of the amount of movement of the second guide member 5, and when viewed from the first guide member 1, the The bent portion 14 of the second guide member 5
It will move to the right by 1/2 of the amount of movement.

可撓部材の曲り部分１４の移動量は、常に第２
の案内部材５の移動量の1/2であるので、この可
撓部材の曲り部分１４と係合する保持器１０は、
転動体９がない状態でも第１の案内部材１に対し
第２の案内部材５の移動量の1/2となるように案
内される。 The amount of movement of the bending portion 14 of the flexible member is always the second
Since the amount of movement of the guide member 5 is 1/2, the retainer 10 that engages with the bent portion 14 of this flexible member is
Even when there is no rolling element 9, the second guide member 5 is guided relative to the first guide member 1 by half the amount of movement of the second guide member 5.

可撓部材の曲り部分１４は、保持器１０の位置
ずれに対しては弾性変形可能で、位置ずれした保
持器１０には可撓部材１４の変形に応じ保持器１
０を正しい位置に戻す方向の力が働くので、保持
器１０の位置ずれが累積することはない。 The bent portion 14 of the flexible member can be elastically deformed in response to the displacement of the retainer 10, and the retainer 1
Since a force acts in the direction of returning the 0 to the correct position, the positional deviation of the retainer 10 does not accumulate.

第１の案内部材１に設けてある孔１９および第
２の案内部材５に設けてある孔２０は、第１のお
よび第２の案内部材１，５を他の部材に取付けて
使用する場合のボルト孔である。 The hole 19 provided in the first guide member 1 and the hole 20 provided in the second guide member 5 are used when the first and second guide members 1 and 5 are attached to other members. It is a bolt hole.

次に、第５図および第６図により第２の実施例
を説明する。 Next, a second embodiment will be explained with reference to FIGS. 5 and 6.

この実施例は、Ｕ字形の可撓部材を案内部材に
設けたＶ形の転動面の底部に設けたにげに受面を
設け、この受面に可撓部材を取付けてコンパクト
な構成としたものである。 In this embodiment, a U-shaped flexible member is provided on the guide member, a receiving surface is provided on the bottom of the V-shaped rolling surface, and the flexible member is attached to this receiving surface, resulting in a compact structure. It is something.

第１の案内部材２１は、四角状断面を有する縦
長のブロツクで、長手方向の一つの面にＶ形の転
動溝２２が軸方向に形成され、Ｖ形の転動溝２２
の溝底には前記面と平行な受面を形成するにげ溝
２３が形成されている。 The first guide member 21 is a vertically elongated block having a square cross section, and has a V-shaped rolling groove 22 formed in the axial direction on one surface in the longitudinal direction.
A groove 23 is formed at the bottom of the groove to form a receiving surface parallel to the surface.

第２の案内部材２４は、第１の案内部材２１と
同じ形状のブロツクで、長手方向の一つの面にＶ
形の転動溝２５が軸方向に形成され、Ｖ形の転動
溝２５の溝底には前記面と平行な受面を形成する
にげ溝２６が形成されている。 The second guide member 24 is a block having the same shape as the first guide member 21, and has a V shape on one longitudinal surface.
A V-shaped rolling groove 25 is formed in the axial direction, and a groove 26 forming a receiving surface parallel to the surface is formed at the bottom of the V-shaped rolling groove 25.

第１の案内部材の転動溝２２と第２の案内部材
の転動溝２５との間には、軸線の向きを交互に直
角方向に変えた円筒ころ２７が多数配され、第１
の案内部材２１と第２の案内部材２４は円筒ころ
２７の転動によつて相対運動可能とされている。 Between the rolling grooves 22 of the first guide member and the rolling grooves 25 of the second guide member, a large number of cylindrical rollers 27 whose axis directions are alternately changed at right angles are arranged.
The guide member 21 and the second guide member 24 can be moved relative to each other by rolling of cylindrical rollers 27.

円筒ころ２７は、第１の案内部材２１と第２の
案内部材２４との間の空間に配された保持器２８
により夫々離間され且つ回転自在に保持されてい
る。 The cylindrical rollers 27 are arranged in a cage 28 arranged in a space between the first guide member 21 and the second guide member 24.
are spaced apart from each other and rotatably held.

第１の可撓部材２９は、薄い板材で作られた帯
状の部材で、一方の端部がねじ３０により第１の
案内部材のにげ溝２３の一方の端部に固着され、
他の一方の端部がねじ３１により第２の案内部材
のにげ溝２６の一方の端部に固着されており、第
１の案内部材のにげ溝２３に接する直線部分３２
と、第２の案内部材のにげ溝２６に接する直線部
分３３およびこの直線部分３２，３３に連続する
半円弧状の曲り部分３４とを有するＵ字形とされ
ている。 The first flexible member 29 is a band-shaped member made of a thin plate material, and one end is fixed to one end of the groove 23 of the first guide member with a screw 30.
The other end is fixed to one end of the groove 26 of the second guide member by a screw 31, and a straight portion 32 is in contact with the groove 23 of the first guide member.
The guide member has a U-shape having a straight portion 33 in contact with the groove 26 of the second guide member, and a semi-circular curved portion 34 continuous to the straight portions 32 and 33.

第１の可撓部材の曲り部分３４は、保持器２８
の端部に設けた係合部である第１の角孔３５に挿
通され中央部分が保持器２８と滑動自在に係合し
ている。 The bent portion 34 of the first flexible member is connected to the retainer 28
It is inserted into a first square hole 35, which is an engaging part provided at the end of the holder 28, and its central portion is slidably engaged with the retainer 28.

第２の可撓部材３６は、第１の案内部材２１と
第２の案内部材２４との間に配され第１の可撓部
材２９に対して対称位置に設けられている。 The second flexible member 36 is arranged between the first guide member 21 and the second guide member 24 and is provided at a symmetrical position with respect to the first flexible member 29 .

３７，３８、第２の可撓部材３６の端部を第１
の案内部材のにげ溝２３の端部または第２の案内
部材のにげ溝２６の端部に夫々固着するためのね
じである。このねじ３７，３８によつて第１の案
内部材のにげ溝２３または第２の案内部材のにげ
溝２６に固着された第２の可撓部材３６は、第１
の案内部材のにげ溝２３に接する直線部分３９と
第２の案内部材のにげ溝３６に接する直線部分４
０およびこの直線部分３９，４０をに連続する半
円弧状の曲り部分４１とを有するＵ字形とされて
いる。 37, 38, the end of the second flexible member 36 is connected to the first
The second flexible member 36 fixed to the recess 23 of the first guide member or the recess 26 of the second guide member by the screws 37, 38 is fixed to the recess 23 of the first guide member or the recess 26 of the second guide member by the screws 37, 38.
A straight portion 39 contacting the relief groove 23 of the first guide member and a straight portion 4 contacting the relief groove 36 of the second guide member
0 and a semicircular arc curved portion 41 continuing from the straight portions 39, 40, to form a U-shape.

第２の可撓部材の曲り部分４１は、保持器２８
の端部に設けた係合部である第２の角孔４２に挿
通され中央部分が保持器２８と滑動自在に係合し
ている。 The bent portion 41 of the second flexible member is connected to the retainer 28
It is inserted into a second square hole 42, which is an engaging portion provided at the end of the holder 28, and its central portion is slidably engaged with the retainer 28.

第１の角孔３５と第２の角孔４２の間隔は、第
１の可撓部材の曲り部分３４と第２の可撓部材の
曲り部分４１の自由状態における間隔と同じ間隔
とされており、組立状態においては互いに力を及
ぼさないようになつている。 The distance between the first square hole 35 and the second square hole 42 is the same as the distance between the bent portion 34 of the first flexible member and the bent portion 41 of the second flexible member in the free state. , so that they do not exert any force on each other in the assembled state.

第１の案内部材２１に設けた孔４３および第２
の案内部材２４に設けた孔４４は、第１のおよび
第２の案内部材２１，２４を他の部材に取付けて
使用する場合のボルト孔である。 The hole 43 provided in the first guide member 21 and the second
The hole 44 provided in the guide member 24 is a bolt hole used when the first and second guide members 21, 24 are attached to another member.

第１の案内部材２１に対し第２の案内部材２４
が相対移動すると、可撓部材２９，３６の曲り部
分３４，４１は、第１の案内部材２１に対し第２
の案内部材２４の移動量の常に1/2の移動量とな
ることは第１の実施例の場合と同様であり、保持
器に位置ずれが発生した場合は、第１の可撓部材
２９および／または第２の可撓部材３６により保
持器２８の位置ずれに応じ保持器２８を正しい位
置に戻す方向の力が保持器２８に働くので保持器
２８の位置ずれが累積することがない。 The second guide member 24 with respect to the first guide member 21
When the flexible members 29, 36 are moved relative to each other, the bent portions 34, 41 of the flexible members 29, 36 are moved relative to the first guide member 21.
As in the case of the first embodiment, the amount of movement of the guide member 24 is always 1/2, and if a positional shift occurs in the retainer, the amount of movement of the first flexible member 29 and Since the second flexible member 36 applies a force to the holder 28 in the direction of returning the holder 28 to the correct position in response to the positional deviation of the holder 28, the positional deviation of the holder 28 does not accumulate.

この第２の実施例は、可撓部材２９，３６の曲
り部分３４，４１を保持器２８に設けた角孔３
５，４２とを係合するようにしたが、保持器２８
の長さ寸法を小さくし第１の可撓部材の曲り部分
３４と第２の可撓部材の曲り部分４１の間に保持
器２８を配したものとすることもできる。 In this second embodiment, the bent portions 34, 41 of the flexible members 29, 36 are formed in a square hole 3 provided in the retainer 28.
5 and 42, but the retainer 28
It is also possible to reduce the length dimension and arrange the retainer 28 between the bent portion 34 of the first flexible member and the bent portion 41 of the second flexible member.

第７図および第８図に示す第３の実施例は、第
１の案内部材５１と第２の案内部材５２との間に
Ｖ平のころがり案内を設けたものである。 In the third embodiment shown in FIGS. 7 and 8, a V-shaped rolling guide is provided between a first guide member 51 and a second guide member 52.

この第３の実施例では、第１の案内部材５１を
基台、第２の案内部材５２を移動台と表現するこ
とにする。 In this third embodiment, the first guide member 51 will be referred to as a base, and the second guide member 52 will be referred to as a moving table.

基台５１は、移動台５２の移動方向と平行なＶ
形の転動溝５３および平らな転動面５４を有し、
このＶ形の転動溝５３と平らな転動面５４の両外
側に転動面５４と平行な受面５５，５６を有して
いる。 The base 51 has a V parallel to the moving direction of the moving table 52.
It has a shaped rolling groove 53 and a flat rolling surface 54,
The V-shaped rolling groove 53 and the flat rolling surface 54 have receiving surfaces 55 and 56 parallel to the rolling surface 54 on both outer sides thereof.

移動台５２は、基台のＶ形の転動溝５３、平ら
な転動面５４、受面５５および受面５６に夫々対
向し移動台５２の移動方向と夫々平行な山形の突
出部５７、平らな転動面５８、受面５９および受
面６０を有している。 The moving table 52 has chevron-shaped protrusions 57 that face the V-shaped rolling groove 53 of the base, a flat rolling surface 54, a receiving surface 55, and a receiving surface 56, respectively, and are parallel to the moving direction of the moving table 52, respectively. It has a flat rolling surface 58, a receiving surface 59, and a receiving surface 60.

基台のＶ形の転動溝５３と移動台の山形の突出
部５７との間には、Ｖ形状の保持器６１に回転自
在に保持された円筒ころ６２，６３が多数軸方向
に配され、基台の平らな転動面５４と移動台の平
らな転動面５８との間には、平形の保持器６４に
回転自在に保持された円筒ころ６５が多数配さ
れ、移動台５２は、円筒ころ６２，６３，６５に
より基台５１に支承されている。 A large number of cylindrical rollers 62 and 63 rotatably held in a V-shaped retainer 61 are arranged in the axial direction between the V-shaped rolling groove 53 of the base and the chevron-shaped protrusion 57 of the moving table. Between the flat rolling surface 54 of the base and the flat rolling surface 58 of the movable table, a large number of cylindrical rollers 65 rotatably held by a flat retainer 64 are disposed, and the movable table 52 , is supported on the base 51 by cylindrical rollers 62, 63, and 65.

移動台５２は、円筒ころ６２，６３，６５の転
動により基台５１に対して軸方向相対移動可能と
されている。 The movable table 52 can be moved relative to the base 51 in the axial direction by rolling of cylindrical rollers 62, 63, and 65.

可撓部材６６，６７は、基台５１と移動台５２
の対向する受面５５，５９または５６，６０に端
部がねじ６８もしくは６９またはねじ７０もしく
は７１により夫々固着され、基台５１と移動台５
２との間でＵ字形とされている薄い板状の部材で
ある。 The flexible members 66 and 67 are connected to the base 51 and the movable base 52.
The end portions are fixed to the opposing receiving surfaces 55, 59 or 56, 60 by screws 68 or 69 or screws 70 or 71, respectively, and the base 51 and the movable table 5
It is a thin plate-like member that is U-shaped between the two.

保持器６１，６７の側方には、可撓部材６６ま
たは６７と係合するローラ７２，７３が夫々回転
自在に軸支され、可撓部材６７または６７の半円
弧状の曲り部分７４または７５の中央部分を両側
より挟持している。 Rollers 72 and 73 that engage with the flexible members 66 and 67 are rotatably supported on the sides of the retainers 61 and 67, respectively, and semicircular arc-shaped bent portions 74 and 75 of the flexible members 67 and 67 are respectively rotatably supported. The central part of is held between both sides.

基台５１に対し移動台５２が相対移動すると、
可撓部材の曲り部分７４，７５は、夫々基台５１
に対する移動台５２の移動量の1/2移動し、転動
体である円筒ころ６２，６３，６５のすべり等に
より保持器６１，６４の移動量が移動台５２の移
動量1/2とならない場合は、可撓部材６６，６７
は弾性変形し可撓部材６６，６７は保持器６１，
６４の移動を正しい移動とさせる方向の力を保持
器６１，６４に与えることは第１の実施例の場合
と同じである。 When the moving table 52 moves relative to the base 51,
The bent portions 74 and 75 of the flexible member are connected to the base 51, respectively.
When the moving amount of the moving table 52 is moved by 1/2 of the amount of movement of the moving table 52, and the moving amount of the retainers 61, 64 is not equal to 1/2 of the moving amount of the moving table 52 due to slipping of the cylindrical rollers 62, 63, 65, which are rolling elements, etc. are flexible members 66, 67
are elastically deformed, and the flexible members 66, 67 are the retainer 61,
Applying a force to the retainers 61 and 64 in the direction to make the correct movement of the retainers 64 is the same as in the first embodiment.

以上のように構成したこの考案の直動案内装置
は、二つの案内部材の間に介在させた転動体を保
持する保持器と案内部材に端部を固着されＵ字形
とされた可撓部材の曲り部分を係合させ、保持器
の位置ずれに応じ保持器の位置ずれを修正する方
向の力を保持器に与えるようにし、保持器の運動
を過剰に強制することなく、各動作ごとの微小な
保持器の位置ずれが累積しないようにしたもので
あるので、小さな力で保持器にむりな力を加える
ことなく保持器の位置ずれを修正することがで
き、転動体および転動面を摩耗させることもほと
んどないため、保持器の位置ずれという不具合が
なく、作動特性のすぐれた耐久性のある直動案内
装置を得ることができる。 The linear motion guide device of this invention constructed as described above includes a retainer that holds a rolling element interposed between two guide members, and a U-shaped flexible member whose end is fixed to the guide member. By engaging the bent portions and applying force to the retainer in the direction to correct the retainer's misalignment in accordance with the retainer's misalignment, the motion of the retainer is not excessively forced, and the slight This prevents the accumulation of cage misalignment, so it is possible to correct cage misalignment with a small force without applying excessive force to the cage, reducing wear on the rolling elements and rolling surfaces. Therefore, there is no problem of displacement of the retainer, and a durable linear motion guide device with excellent operating characteristics can be obtained.

また、構造がシンプルで、移動する案内部材の
運動の慣性を大きくすることがないので、高速作
動が可能であつて保持器の位置ずれのない直動案
内装置を得ることができ、直動案内装置のコスト
も低廉であるという効果を有する。 In addition, the structure is simple and the inertia of the moving guide member does not increase, so it is possible to obtain a linear motion guide device that is capable of high-speed operation and does not shift the position of the cage. The cost of the device is also low.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この考案に係る直動案内装置の第１
の実施例の正面図、第２図は、第１図の右側面
図、第３図は、第１図の直動案内装置の作動の一
態様を示す正面図、第４図は、第１図の直動案内
装置の作動の一態様を示す斜視図、第５図は、こ
の考案に係る直動案内装置の第２の実施例の縦断
面図、第６図は、第５図の側面図、第７図は、こ
の考案に係る直動案内装置の第３の実施例を示す
正面図、第８図は、第７図の左側面図である。 １，２１，５１……第１の案内部材、５，２
４，５２……第２の案内部材、９……ボール、２
７，６２，６３，６５……円筒ころ、１０，２
８，６１，６４……保持器、１１，２９，３６，
６６，６７……可撓部材、１７，１８……突起、
３５，４２……角孔、７２，７３……ローラ。 Figure 1 shows the first linear motion guide device according to this invention.
2 is a right side view of FIG. 1, FIG. 3 is a front view showing one mode of operation of the linear motion guide device of FIG. 1, and FIG. 4 is a front view of the embodiment of FIG. FIG. 5 is a vertical sectional view of a second embodiment of the linear motion guide device according to the invention, and FIG. 6 is a side view of the linear motion guide device shown in FIG. FIG. 7 is a front view showing a third embodiment of the linear motion guide device according to the invention, and FIG. 8 is a left side view of FIG. 7. 1, 21, 51...first guide member, 5, 2
4, 52...Second guide member, 9...Ball, 2
7, 62, 63, 65... Cylindrical roller, 10, 2
8, 61, 64...retainer, 11, 29, 36,
66, 67...Flexible member, 17, 18...Protrusion,
35, 42...square hole, 72, 73...roller.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸方向に形成された転動面を有する第１の案内
部材と、該第１の案内部材の転動面に対向する転
動面を有する第２の案内部材と、該第２の案内部
材の転動面と前記第１の案内部材の転動面との間
に転動自在に配された多数の転動体と、前記第１
の案内部材と前記第２の案内部材との間の空間に
配され前記転動体を互いに離間させかつ回動自在
に保持する板状の保持器とを具えた直動案内装置
において、前記第１の案内部材及び前記第２の案
内部材は前記転動体の転動移動方向と平行かつ互
いに対向する軸方向の受面を夫々有し、該受面に
夫々一方の該部が固定され該受面に当接して軸方
向に延びる２つの直線部分と該直線部分の他方の
端部に連続する半円弧状の曲り部分とを有するＵ
字形の可撓部材が配設され、前記保持器は可撓部
材の前記曲り部分の中央部に係合し前記保持器の
軸方向移動を拘束する係合部を有してなる直動案
内装置。 a first guide member having a rolling surface formed in the axial direction; a second guide member having a rolling surface opposite to the rolling surface of the first guide member; a large number of rolling elements rotatably disposed between a rolling surface and a rolling surface of the first guide member;
and a plate-shaped retainer disposed in a space between the first guide member and the second guide member to keep the rolling elements apart from each other and rotatably hold the first guide member. The guide member and the second guide member each have bearing surfaces in the axial direction that are parallel to the rolling movement direction of the rolling element and opposite to each other, and one of the parts is fixed to the bearing surface. A U having two straight portions extending in the axial direction in contact with and a semicircular arc-shaped curved portion continuous to the other end of the straight portions.
A linear motion guide device, wherein a flexible member having a shape of a letter is disposed, and the retainer has an engaging portion that engages with a central portion of the bent portion of the flexible member and restrains axial movement of the retainer. .
JP1981008507U 1981-01-26 1981-01-26 Expired JPS627853Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981008507U JPS627853Y2 (en) 1981-01-26 1981-01-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981008507U JPS627853Y2 (en) 1981-01-26 1981-01-26

Publications (2)

Publication Number Publication Date
JPS57122825U JPS57122825U (en) 1982-07-30
JPS627853Y2 true JPS627853Y2 (en) 1987-02-24

Family

ID=29806657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981008507U Expired JPS627853Y2 (en) 1981-01-26 1981-01-26

Country Status (1)

Country Link
JP (1) JPS627853Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2397712A1 (en) * 2010-06-21 2011-12-21 Aktiebolaget SKF Linear guide with a retainer with forced guidance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110826A (en) * 1961-03-29 1963-11-12 Mytron Products Inc Device for translating reciprocating movement of a solenoid into oscillating motion
JPS53225U (en) * 1976-06-22 1978-01-05
JPS5560718A (en) * 1978-10-31 1980-05-08 Toshiba Corp Linear bearing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110826A (en) * 1961-03-29 1963-11-12 Mytron Products Inc Device for translating reciprocating movement of a solenoid into oscillating motion
JPS53225U (en) * 1976-06-22 1978-01-05
JPS5560718A (en) * 1978-10-31 1980-05-08 Toshiba Corp Linear bearing

Also Published As

Publication number Publication date
JPS57122825U (en) 1982-07-30

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