JP4556829B2 - Linear guide device - Google Patents

Linear guide device Download PDF

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Publication number
JP4556829B2
JP4556829B2 JP2005289226A JP2005289226A JP4556829B2 JP 4556829 B2 JP4556829 B2 JP 4556829B2 JP 2005289226 A JP2005289226 A JP 2005289226A JP 2005289226 A JP2005289226 A JP 2005289226A JP 4556829 B2 JP4556829 B2 JP 4556829B2
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rolling element
belt
rolling
separator
linear guide
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JP2007100756A (en
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淳 松本
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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
    • 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
    • F16C33/3825—Ball cages formed as a flexible belt, e.g. spacers connected by a thin film
    • 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
    • F16C29/0642—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 four rows of balls
    • F16C29/0647—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 four rows of balls with load directions in X-arrangement

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

Description

本発明は、直線運動する物体をその移動方向に案内するリニアガイド装置に関する。   The present invention relates to a linear guide device for guiding a linearly moving object in its moving direction.

直線運動する物体をその移動方向に案内するリニアガイド装置として、従来、図６に示されるものが知られている。同図において、符号１はリニアガイド装置を示し、このリニアガイド装置１は案内レール２、スライダ本体４及びエンドキャップ５Ａ，５Ｂを備えている。案内レール２はその長手方向と直交する断面が略矩形状に形成されており、その左右側面部には、それぞれ二条の転動体軌道溝６Ｒが案内レール２の長手方向に沿って設けられている。 As a linear guide device for guiding a linearly moving object in its moving direction, a device shown in FIG. 6 is conventionally known. In the figure, reference numeral 1 denotes a linear guide device, and the linear guide device 1 includes a guide rail 2, a slider body 4, and end caps 5A and 5B. The guide rail 2 is formed in a substantially rectangular cross section perpendicular to the longitudinal direction, and two rolling element raceway grooves 6R are provided along the longitudinal direction of the guide rail 2 on the left and right side surfaces thereof. .

スライダ本体４はエンドキャップ５Ａ，５Ｂと共にリニアガイド装置１のスライダ３を構成しており、スライダ本体４には四条の転動体軌道溝６Ｓが設けられている。これらの転動体軌道溝６Ｓは案内レール２の転動体軌道溝６Ｒと各々対向しており、転動体軌道溝６Ｒと転動体軌道溝６Ｓとの間には、球状に形成された多数の転動体７を案内レール２の長手方向に転動させるための転動体転動路８が形成されている。   The slider body 4 constitutes the slider 3 of the linear guide device 1 together with the end caps 5A and 5B. The slider body 4 is provided with four rolling element raceway grooves 6S. These rolling element raceway grooves 6S face the rolling element raceway grooves 6R of the guide rail 2, and a large number of rolling elements formed in a spherical shape are formed between the rolling element raceway grooves 6R and the rolling element raceway grooves 6S. A rolling element rolling path 8 for rolling 7 in the longitudinal direction of the guide rail 2 is formed.

エンドキャップ５Ａ，５Ｂはスライダ本体４の前後方向両端に設けられており、これらのエンドキャップ５Ａ，５Ｂ内に形成された方向転換路９は、前述した転動体転動路７に連通していると共にスライダ本体４内に形成された転動体戻し路１０に連通している。
転動体転動路８、方向転換路９及び転動体戻し路１０は転動体循環路を構成しており、転動体７はスライダ３が案内レール２の長手方向に相対移動すると上記転動体循環路を転動するようになっている。 The end caps 5A and 5B are provided at both ends of the slider body 4 in the front-rear direction, and the direction change paths 9 formed in the end caps 5A and 5B communicate with the rolling element rolling path 7 described above. At the same time, it communicates with a rolling element return path 10 formed in the slider body 4.
The rolling element rolling path 8, the direction changing path 9 and the rolling element return path 10 constitute a rolling element circulation path. When the slider 3 relatively moves in the longitudinal direction of the guide rail 2, the rolling element circulation path is formed. Is supposed to roll.

このようなリニアガイド装置では、隣り合う二つの転動体７が衝突することによって騒音や振動が発生したり、隣り合う二つの転動体７が競り合う（擦れ合う）ことによって転動体の早期摩耗などが発生したりすることがある。そこで、転動体同士の衝突や競り合い（擦れ合い）を防止するために、隣り合う二つの転動体の間に、図７あるいは図８に示すような樹脂製の間座（保持ピースとも称す）１１を配置したものが知られている（特許文献１及び２参照）。
特許第２６０７９９３号公報 特許第３２９９４５０号公報 In such a linear guide device, noise and vibration are generated when two adjacent rolling elements 7 collide with each other, and early wear of the rolling elements is generated when two adjacent rolling elements 7 compete (rub against each other). Sometimes. Therefore, in order to prevent the rolling elements from colliding with each other and competing (rubbing), a resin spacer (also referred to as a holding piece) 11 as shown in FIG. 7 or FIG. 8 is provided between two adjacent rolling elements. Is known (see Patent Documents 1 and 2).
Japanese Patent No. 2607993 Japanese Patent No. 3299450

しかしながら、特許文献１及び２に示されたリニアガイド装置では、間座１１の両側に樹脂からなるベルト状の連結部材１２を設け、これらの連結部材１２で間座同士を連結して間座１１の倒れを防止するようにしている。このため、このようなリニアガイド装置では、間座１１の倒れを防止することができるが、連結部材１２がエンドキャップの方向転換路内で円弧状に湾曲すると、隣り合う二つの間座間に引張力が発生するため、連結部材１２が間座間で破断し易いという問題がある。従って、間座同士を連結するベルト状連結部材１２の破断を防ぐために、連結部材の素材や寸法を選定する必要があり、連結部材の素材選定に多くの労力を要するという問題があった。   However, in the linear guide devices disclosed in Patent Documents 1 and 2, belt-shaped connecting members 12 made of resin are provided on both sides of the spacer 11, and the spacers 11 are connected by the connecting members 12. I try to prevent the fall. For this reason, in such a linear guide device, the spacer 11 can be prevented from falling, but if the connecting member 12 is curved in an arc shape in the direction change path of the end cap, the spacer is pulled between two adjacent spacers. Since the force is generated, there is a problem that the connecting member 12 is easily broken between the spacers. Therefore, in order to prevent breakage of the belt-like connecting member 12 that connects the spacers, it is necessary to select the material and dimensions of the connecting member, and there is a problem that much labor is required for selecting the material of the connecting member.

本発明は、このような問題点に着目してなされたもので、転動体同士の衝突に起因する騒音や転動体同士の競り合いに起因する転動体の早期摩耗等を抑制することができるとともに、転動体収容孔の形成された部分でベルト状セパレータが破断することを抑制することのできるリニアガイド装置を提供することを目的とするものである。   The present invention has been made by paying attention to such problems, and can suppress noise caused by collision between rolling elements and early wear of rolling elements caused by competition between rolling elements, etc. It is an object of the present invention to provide a linear guide device capable of suppressing the belt-shaped separator from being broken at the portion where the rolling element accommodation hole is formed.

上記の目的を達成するために、請求項１の発明は、案内レールとスライダとの間に配設された多数の球状転動体をセパレートする樹脂製のベルト状セパレータを備えたリニアガイド装置であって、前記ベルト状セパレータは前記転動体を各々収容する複数の円形の転動体収容孔と、前記ベルト状セパレータの表面又は裏面から突出して前記転動体収容孔に収容された前記転動体を抱える複数の転動体抱え部とを有し、前記転動体抱え部は前記ベルト状セパレータの両側部で前記転動体収容孔の中心を通り且つ前記ベルト状セパレータの長手方向中心線と直交する直線上に位置するように一定ピッチで設けられており、さらにこれら転動体抱え部は前記転動体収容孔を間に挟んで前記ベルト状セパレータの両側部に位置する二つの転動体抱え部のうち一方の転動体抱え部を前記ベルト状セパレータの表面部からのみ突出するように設けるとともに、他方の転動体抱え部を前記ベルト状セパレータの裏面部からのみ突出するように設けたことを特徴とする。 In order to achieve the above object, the invention of claim 1 is a linear guide device including a resin belt-like separator that separates a large number of spherical rolling elements disposed between a guide rail and a slider. The belt-like separator has a plurality of circular rolling-element accommodation holes that respectively accommodate the rolling elements, and a plurality of the rolling-elements that protrude from the front or back surface of the belt-like separator and are accommodated in the rolling-element accommodation holes. Rolling member holding portions, and the rolling member holding portions are located on a straight line that passes through the center of the rolling element housing hole at both sides of the belt-shaped separator and is orthogonal to the longitudinal center line of the belt-shaped separator. provided at a predetermined pitch so as to further two rolling element faced portions located on both sides of the belt-like separator these rolling elements suffer portion sandwiched between the rolling elements accommodation hole Among one of the rolling elements suffer portion provided with so as to protrude only from the surface portion of the belt-like separator, and characterized in that the other rolling element faced portion provided so as to protrude only from the back surface of the belt-like separator To do.

請求項１の発明によれば、転動体を各々収容する複数の転動体収容孔をベルト状セパレータに設けたことで、転動体循環路内に多数の転動体を一定間隔で配列することができるので、転動体循環路内で転動体同士が衝突したり、競り合ったりすることを防止でき、これにより、転動体同士の衝突に起因する騒音や転動体同士の競り合いに起因する転動体の早期摩耗等を抑制することができる。また、ベルト状セパレータの両側部に複数の転動体抱え部を転動体収容孔の中心を通り且つセパレータの長手方向中心線と直交する直線上に位置するように設けたことで、転動体収容孔が形成されてベルト断面積が最も小さくなる位置が転動体抱え部により補強され、転動体収容孔の形成された部分でベルト状セパレータが破断することを抑制できるので、リニアガイド装置の信頼性を高めることができる。 According to the present invention, a plurality of rolling elements accommodation hole for accommodating the respective rolling elements by providing a belt-shaped separators, it is arranged a number of rolling elements at regular intervals in the rolling element circulation path It is possible to prevent the rolling elements from colliding with each other in the rolling element circulation path or to compete with each other, and thereby, the noise caused by the collision between the rolling elements and the early rolling elements resulting from the competition between the rolling elements. Wear and the like can be suppressed. In addition, a plurality of rolling element holding portions are provided on both sides of the belt-like separator so as to be positioned on a straight line that passes through the center of the rolling element accommodation hole and is orthogonal to the longitudinal center line of the separator. The position where the belt cross-sectional area becomes the smallest is reinforced by the rolling element holding portion, and the belt-shaped separator can be prevented from breaking at the portion where the rolling element receiving hole is formed. Can be increased.

また、転動体抱え部をベルト状セパレータの表面部からのみ突出させたものと、同裏面部からのみ突出させたものとしたことで、転動体抱え部をベルト状セパレータの表面部と裏面部の両面から突出させたものと比較して、ベルト状セパレータの断面積が小さくて済むので、ベルト状セパレータをリニアガイド装置に組み込む際の必要なスペースを小さくすることができる。 In addition, the rolling element holding portion protrudes only from the front surface portion of the belt-shaped separator and the rolling member holding portion protrudes only from the back surface portion. Since the cross-sectional area of the belt-like separator can be small compared with the case where the belt-like separator is protruded from both sides, a necessary space for incorporating the belt-like separator into the linear guide device can be reduced.

さらに転動体抱え部を、転動体収容孔の中心を通り且つベルト状セパレータの長手方向中心線と直交する直線上に位置するように設けたことで、転動体収容孔が形成されることによって断面積が最も小さくなった部分が補強され、転動体収容孔の形成された部分でベルト状セパレータが破断することを抑制できるので、リニアガイド装置の信頼性を高めることができる。 Further rolling elements faced part, by providing so as to be positioned in the rolling element accommodating hole around the street and a belt-like separator in a longitudinal direction center line perpendicular to a straight line of the cross-sectional by rolling elements accommodation hole is formed Since the portion with the smallest area is reinforced and the belt-like separator can be prevented from breaking at the portion where the rolling element accommodation hole is formed, the reliability of the linear guide device can be improved.

以下、図１〜図５を参照して本発明の実施の形態を説明する。
図１は本発明の第１の実施形態に係るリニアガイド装置の幅方向に沿う断面図、図２は図１のII−II断面図であり、本発明の第１の実施形態に係るリニアガイド装置は、案内レール２、スライダ本体４及びエンドキャップ５Ａ，５Ｂを備えている。案内レール２はその長手方向と直交する断面が略矩形状に形成されており、その左右側面部には、それぞれ二条の転動体軌道溝６Ｒが案内レール２の長手方向に沿って設けられている。 Hereinafter, with reference to FIGS describing the embodiments of the present invention.
1 is a cross-sectional view taken along the width direction of a linear guide device according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, and the linear guide according to the first embodiment of the present invention. The apparatus includes a guide rail 2, a slider body 4, and end caps 5A and 5B. The guide rail 2 is formed in a substantially rectangular cross section perpendicular to the longitudinal direction, and two rolling element raceway grooves 6R are provided along the longitudinal direction of the guide rail 2 on the left and right side surfaces thereof. .

スライダ本体４はエンドキャップ５Ａ，５Ｂと共にリニアガイド装置のスライダ３を構成しており、スライダ本体４には四条の転動体軌道溝６Ｓが設けられている。これらの転動体軌道溝６Ｓは案内レール２の転動体軌道溝６Ｒと各々対向しており、転動体軌道溝６Ｒと転動体軌道溝６Ｓとの間には、球状に形成された多数の転動体７を案内レール２の長手方向に転動させるための転動体転動路８が形成されている。   The slider body 4 constitutes the slider 3 of the linear guide device together with the end caps 5A and 5B. The slider body 4 is provided with four rolling element raceway grooves 6S. These rolling element raceway grooves 6S face the rolling element raceway grooves 6R of the guide rail 2, and a large number of rolling elements formed in a spherical shape are formed between the rolling element raceway grooves 6R and the rolling element raceway grooves 6S. A rolling element rolling path 8 for rolling 7 in the longitudinal direction of the guide rail 2 is formed.

エンドキャップ５Ａ，５Ｂはスライダ本体４の前後方向両端に設けられており、これらのエンドキャップ５Ａ，５Ｂ内に形成された方向転換路９は、前述した転動体転動路７に連通していると共にスライダ本体４内に形成された転動体戻し路１０に連通している。
転動体転動路８、方向転換路９及び転動体戻し路１０は転動体循環路を構成しており、転動体７はスライダ３が案内レール２の長手方向に相対移動すると上記転動体循環路を転動するようになっている。 The end caps 5A and 5B are provided at both ends of the slider body 4 in the front-rear direction, and the direction change paths 9 formed in the end caps 5A and 5B communicate with the rolling element rolling path 7 described above. At the same time, it communicates with a rolling element return path 10 formed in the slider body 4.
The rolling element rolling path 8, the direction changing path 9 and the rolling element return path 10 constitute a rolling element circulation path. When the slider 3 relatively moves in the longitudinal direction of the guide rail 2, the rolling element circulation path is formed. Is supposed to roll.

転動体７は、樹脂からなるベルト状のセパレータ（以下「ベルト状セパレータ」と称す）１５により一定間隔でセパレートされている。このベルト状セパレータ１５は可撓性を有しており、その中央部には複数の転動体収容孔１６（図３参照）が一定ピッチで設けられている。これらの転動体収容孔１６は転動体７よりも僅かに大きい直径で円形に形成されており、各転動体７はベルト状セパレータ１５の転動体収容孔１６に収容されている。   The rolling elements 7 are separated at regular intervals by a belt-shaped separator (hereinafter referred to as “belt-shaped separator”) 15 made of resin. The belt-like separator 15 has flexibility, and a plurality of rolling element accommodation holes 16 (see FIG. 3) are provided at a constant pitch at the center. These rolling element accommodation holes 16 are formed in a circular shape with a slightly larger diameter than the rolling elements 7, and each rolling element 7 is accommodated in the rolling element accommodation holes 16 of the belt-like separator 15.

一方、ベルト状セパレータ１５の両側部には、複数の転動体抱え部１７が転動体収容孔１６の中心Ｏを通り且つベルト状セパレータ１５の長手方向中心線ＣＬと直交する直線Ｌ上に位置するように設けられている。これらの転動体抱え部１７は凹球状に形成された転動体接触面１７ａを夫々有しており、転動体収容孔１６に収容された転動体７は転動体抱え部１７の転動体接触面１７ａによってベルト状セパレータ１５に保持されている。   On the other hand, on both sides of the belt-like separator 15, a plurality of rolling element holding portions 17 are positioned on a straight line L that passes through the center O of the rolling element accommodation hole 16 and is orthogonal to the longitudinal center line CL of the belt-like separator 15. It is provided as follows. Each of the rolling element holding portions 17 has a rolling element contact surface 17 a formed in a concave spherical shape, and the rolling element 7 accommodated in the rolling element accommodating hole 16 is in contact with the rolling element contact surface 17 a of the rolling element holding portion 17. Is held by the belt-like separator 15.

また、図５に示すように、ベルト状セパレータ１５の長手方向中心線ＣＬと直交する直線Ｌ上に位置する二つの転動体抱え部１７，１７のうち一方の転動体抱え部１７はベルト状セパレータ１５の表面部１５ａから突出するように設けられ、他方の一方の転動体抱え部１７はベルト状セパレータ１５の裏面部１５ｂから突出するように設けられている。
上述のように、転動体７を収容する複数の転動体収容孔１６をベルト状セパレータ１５の中央部に設けたことにより、転動体循環路内に多数の転動体を一定間隔で配列することができるので、転動体循環路内で転動体同士が衝突したり、競り合ったりすることを防止でき、これにより、転動体同士の衝突に起因する騒音や転動体同士の競り合いに起因する転動体の早期摩耗等を抑制することができる。 Also, as shown in FIG. 5, one of the two rolling element holding portions 17, 17 located on a straight line L orthogonal to the longitudinal center line CL of the belt-like separator 15 is a belt-like separator. The other rolling element holding portion 17 is provided so as to protrude from the back surface portion 15 b of the belt-like separator 15.
As described above, by providing the plurality of rolling element accommodation holes 16 for accommodating the rolling elements 7 in the central portion of the belt-like separator 15, a large number of rolling elements can be arranged at regular intervals in the rolling element circulation path. It is possible to prevent the rolling elements from colliding with each other in the rolling element circulation path or to compete with each other, and thereby, the noise caused by the collision between the rolling elements and the early rolling elements resulting from the competition between the rolling elements. Wear and the like can be suppressed.

また、ベルト状セパレータ１５の両側部に複数の転動体抱え部１７を転動体収容孔１６の中心Ｏを通り且つベルト状セパレータ１５の長手方向中心線ＣＬと直交する直線Ｌ上に位置するように設けたことにより、転動体収容孔１６が形成されて断面積が小さくなった直線Ｌ上の部分が転動体抱え部１７によって補強され、転動体収容孔１６の形成された部分でベルト状セパレータ１５が破断することを抑制できるので、リニアガイド装置の信頼性を高めることができる。 Further, the plurality of rolling element holding portions 17 are positioned on both sides of the belt-like separator 15 on a straight line L that passes through the center O of the rolling-element accommodation hole 16 and is orthogonal to the longitudinal center line CL of the belt-like separator 15. By providing, the part on the straight line L in which the rolling element accommodation hole 16 is formed and the cross-sectional area is reduced is reinforced by the rolling element holding part 17, and the belt-like separator 15 is formed at the part where the rolling element accommodation hole 16 is formed. Therefore, the reliability of the linear guide device can be improved.

さらに、ベルト状セパレータ１５の長手方向中心線ＣＬと直交する直線Ｌ上に位置する二つの転動体抱え部１７，１７のうち一方の転動体抱え部１７をセパレータ１５の表面部１５ａから突出するように設けるとともに、他方の一方の転動体抱え部１７をベルト状セパレータ１５の裏面部１５ｂから突出するように設けたことにより、転動体抱え部をベルト状セパレータの両面から突出させたものと比較して、ベルト状セパレータ１５の断面積が小さくて済むので、ベルト状セパレータ１５をリニアガイド装置に組み込む際の必要なスペースを小さくすることができる。   Further, one of the two rolling element holding portions 17, 17 located on a straight line L orthogonal to the longitudinal center line CL of the belt-like separator 15 protrudes from the surface portion 15 a of the separator 15. And the other one rolling member holding portion 17 is provided so as to protrude from the back surface portion 15b of the belt-like separator 15, so that the rolling member holding portion protrudes from both sides of the belt-like separator. Thus, since the cross-sectional area of the belt-like separator 15 can be small, the necessary space for incorporating the belt-like separator 15 into the linear guide device can be reduced.

本発明の第１の実施形態に係るリニアガイド装置の幅方向断面図である。It is sectional drawing of the width direction of the linear guide apparatus which concerns on the 1st Embodiment of this invention. 図１のII−II断面図である。It is II-II sectional drawing of FIG. 図２に示すベルト状セパレータの平面図である。It is a top view of the belt-shaped separator shown in FIG. 図３に示すベルト状セパレータの側面図である。It is a side view of the belt-shaped separator shown in FIG. 図３のV −V 断面図である。FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 3. 従来のリニアガイド装置の概略構成を示す図である。It is a figure which shows schematic structure of the conventional linear guide apparatus. 転動体間に配置された間座を樹脂製のベルト状連結部材で連結した第１の従来例を示す図である。It is a figure which shows the 1st prior art example which connected the spacer arrange | positioned between rolling elements with the belt-shaped connection members made from resin. 転動体間に配置された間座を樹脂製のベルト状連結部材で連結した第２の従来例を示す図である。It is a figure which shows the 2nd prior art example which connected the spacer arrange | positioned between rolling elements with the belt-shaped connection members made from resin.

２案内レール
３スライダ
４スライダ本体
５Ａ，５Ｂエンドキャップ
６Ｒ，６Ｓエンドキャップ
７転動体
８転動体転動路
９方向転換路
１０転動体戻し路
１５ベルト状セパレータ
１６転動体収容孔
１７転動体抱え部 2 guide rail 3 slider 4 slider body 5A, 5B end cap 6R, 6S end cap 7 rolling element 8 rolling element rolling path 9 direction changing path 10 rolling element return path 15 belt-like separator 16 rolling element accommodation hole 17 rolling element holding part

Claims (1)

案内レールとスライダとの間に配設された多数の球状転動体をセパレートする樹脂製のベルト状セパレータを備えたリニアガイド装置であって、
前記ベルト状セパレータは前記転動体を各々収容する複数の円形の転動体収容孔と、前記ベルト状セパレータの表面又は裏面から突出して前記転動体収容孔に収容された前記転動体を抱える複数の転動体抱え部とを有し、前記転動体抱え部は前記ベルト状セパレータの両側部で前記転動体収容孔の中心を通り且つ前記ベルト状セパレータの長手方向中心線と直交する直線上に位置するように一定ピッチで設けられており、さらにこれら転動体抱え部は前記転動体収容孔を間に挟んで前記ベルト状セパレータの両側部に位置する二つの転動体抱え部のうち一方の転動体抱え部を前記ベルト状セパレータの表面部からのみ突出するように設けるとともに、他方の転動体抱え部を前記ベルト状セパレータの裏面部からのみ突出するように設けたことを特徴とするリニアガイド装置。 A linear guide device including a resinous belt-like separator that separates a large number of spherical rolling elements disposed between a guide rail and a slider,
The belt-shaped separator includes a plurality of circular rolling element receiving holes that respectively accommodate the rolling elements, and a plurality of rolling elements that hold the rolling elements that protrude from the front or back surface of the belt-shaped separator and are accommodated in the rolling element accommodating holes. A rolling element holding portion, and the rolling element holding portion is located on a straight line that passes through the center of the rolling element receiving hole on both sides of the belt-shaped separator and is orthogonal to the longitudinal center line of the belt-shaped separator. Further, these rolling element holding portions are provided on one of the two rolling element holding portions located on both sides of the belt-like separator with the rolling element holding hole interposed therebetween. the provided with so as to protrude only from the surface portion of the belt-like separator, that the other rolling element faced portion provided so as to protrude only from the back surface of the belt-like separator Linear guide device according to claim.
JP2005289226A 2005-09-30 2005-09-30 Linear guide device Expired - Fee Related JP4556829B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04248019A (en) * 1990-08-07 1992-09-03 Werner Jacob Ball guide
JP2607993B2 (en) * 1991-08-22 1997-05-07 テイエチケー 株式会社 Ball chain and linear motion guide device
JPH11351255A (en) * 1998-05-29 1999-12-24 Deutsche Star Gmbh Rolling body chaining device
JP2000065067A (en) * 1998-08-13 2000-03-03 Nippon Seiko Kk Split type cage of rolling bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04248019A (en) * 1990-08-07 1992-09-03 Werner Jacob Ball guide
JP2607993B2 (en) * 1991-08-22 1997-05-07 テイエチケー 株式会社 Ball chain and linear motion guide device
JPH11351255A (en) * 1998-05-29 1999-12-24 Deutsche Star Gmbh Rolling body chaining device
JP2000065067A (en) * 1998-08-13 2000-03-03 Nippon Seiko Kk Split type cage of rolling bearing

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