JP5265227B2 - Exercise equipment - Google Patents

Exercise equipment Download PDF

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JP5265227B2
JP5265227B2 JP2008093177A JP2008093177A JP5265227B2 JP 5265227 B2 JP5265227 B2 JP 5265227B2 JP 2008093177 A JP2008093177 A JP 2008093177A JP 2008093177 A JP2008093177 A JP 2008093177A JP 5265227 B2 JP5265227 B2 JP 5265227B2
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rolling
rolling element
path
retainer
length
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JP2009243633A (en
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弘幸 岸
信也 森
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THK Co Ltd
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THK Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—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
    • 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

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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)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motion device capable of stably carrying out running of all retainers in a rolling element endless circulating path by setting a total quantity of the retainers in the rolling element endless circulating path at an optimum value. <P>SOLUTION: A total rolling direction length size M1 of the retainers existing in a load rolling element rolling path of a plurality of the retainers A1-An in regard to respective rolling direction length size m of the plurality of retainers A1-An is set longer than half of a rolling element track length of the rolling element endless circulating path. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

この発明は、例えば無限摺動用の直線案内装置や曲線案内装置、旋回ベアリング等の運動装置に係り、特に、転動体を回転可能に保持する複数の転動体整列具の総数を最適な数に定めることができる技術に関する。   The present invention relates to an infinite sliding linear guide device, a curved guide device, and a motion device such as a slewing bearing, and in particular, the total number of a plurality of rolling element alignment tools that rotatably hold the rolling elements is determined to be an optimal number. It can be related to technology.

従来、この種の運動装置として、特許文献１に示される摺動案内装置が知られている。
この摺動案内装置１は、図３及び図４に示されるように、転動体転走面２が形成される軌道体３と、前記転動体転走面２に対応する負荷転動体転走路４Ａ、前記負荷転動体転走路４Ａに対して略平行に形成される無負荷転動体転走路４Ｂ及び該負荷転動体転走路４Ａと前記無負荷転動体転走路４Ｂとを接続する一対の方向転換路４Ｃとで構成される転動体無限循環路４を有するとともに、前記軌道体３に対して相対的に移動可能に組み付けられる移動体５と、前記転動体無限循環路４に循環可能に配列されて前記移動体５と前記軌道体３との相対運動に伴って、前記負荷転動体転走路４Ａと前記無負荷転動体転走路４Ｂとの間を転動する複数の転動体６と、を具備するものである。 Conventionally, a sliding guide device disclosed in Patent Document 1 is known as this type of exercise device.
As shown in FIGS. 3 and 4, the sliding guide device 1 includes a track body 3 on which a rolling element rolling surface 2 is formed, and a loaded rolling element rolling path 4 </ b> A corresponding to the rolling element rolling surface 2. A no-load rolling element rolling path 4B formed substantially parallel to the loaded rolling element rolling path 4A, and a pair of direction changing paths connecting the loaded rolling element rolling path 4A and the unloaded rolling element rolling path 4B. A rolling element infinite circulation path 4 composed of 4C, a moving body 5 assembled so as to be movable relative to the track body 3, and a rolling element infinite circulation path 4 arranged in a circulating manner. A plurality of rolling elements 6 rolling between the loaded rolling element rolling path 4 </ b> A and the unloaded rolling element rolling path 4 </ b> B in association with the relative motion of the moving body 5 and the track body 3. Is.

また、前記複数の転動体６は、前記転動体無限循環路４に配設された転動体整列具７（以下、単にリテーナと表現する）により、所定の間隔をもって回転可能に保持されることで有端転動体チェーンを構成する。また、該有端転動体チェーンは、上述の転動体無限循環路４内に１本又は複数本が組み込まれている。
上記のような運動装置では、移動体５が軌道体３に対して移動すると、転動体無限循環路４の負荷転動体転走路４Ａにて、転動体６が荷重を支承しながら転動する。この負荷転動体転走路４Ａでの転動体６の移動によって、有端転動体チェーンのリテーナが転動体無限循環路４内を無限循環する。 The plurality of rolling elements 6 are rotatably held at a predetermined interval by a rolling element alignment tool 7 (hereinafter simply referred to as a retainer) disposed in the rolling element infinite circulation path 4. It constitutes an end rolling element chain. Further, one or a plurality of the endless rolling element chains are incorporated in the rolling element infinite circulation path 4 described above.
In the exercise device as described above, when the moving body 5 moves relative to the track body 3, the rolling element 6 rolls while supporting the load on the rolling element rolling path 4A of the rolling element infinite circulation path 4. Due to the movement of the rolling element 6 in the loaded rolling element rolling path 4A, the endless rolling element chain retainer circulates infinitely in the rolling element infinite circulation path 4.

その際、同じ転動体無限循環路４内の無負荷転動体転走路４Ｂ及び方向転換路４Ｃ内にあるリテーナは、負荷転動体転走路４Ａ内のリテーナによって後方から押されることで、該無負荷転動体転走路４Ｂ及び方向転換路４Ｃ内を従動走行して、再び負荷転動体転走路４Ａに到達することになる。
なお、以下の説明において、リテーナに走行力が付与される負荷転動体転走路４Ａを負荷が掛けられる負荷域、リテーナが従動走行される無負荷転動体転走路４Ｂ及び一対の方向転換路４Ｃを、負荷が掛からない無負荷域という。
特開平１０‐９２６４号公報 At that time, the retainer in the unloaded rolling element rolling path 4B and the direction changing path 4C in the same rolling element infinite circulation path 4 is pushed from behind by the retainer in the loaded rolling element rolling path 4A, thereby The driven body travels along the rolling element rolling path 4B and the direction changing path 4C, and reaches the load rolling element rolling path 4A again.
In the following description, the load rolling element rolling path 4A to which the running force is applied to the retainer is loaded, the no-load rolling element rolling path 4B and the pair of direction changing paths 4C in which the retainer is driven. It is called a no-load area where no load is applied.
Japanese Patent Laid-Open No. 10-9264

上記のような運動装置では、図５に示すように、転動体無限循環路４内にてリテーナを複数に分割した用いる場合がある。なお、図５は、転動体無限循環路４内でリテーナを２分割した例である。
図５の例では、一方のリテーナ（このリテーナを符号Ａ１で示す）が、負荷転動体転走路４Ａである負荷域Ｌ１に位置し、また、他方のリテーナ（このリテーナを符号Ａ２で示す）が、無負荷転動体転走路４Ｂ及び方向転換路４Ｃで示される無負荷域Ｌ２に位置する場合に、無負荷域Ｌ２に位置するリテーナＡ２が、負荷域Ｌ１に位置するリテーナＡ１に押されて従動走行することになる。
ところで、このように複数に分割したリテーナを用いる場合において、全リテーナの安定走行等の観点からその分割数をいくつとすれば良いかという提案はこれまでになされておらず、この点において新しい技術の提供が期待されていた。 In the exercise apparatus as described above, as shown in FIG. 5, the retainer may be divided into a plurality of parts in the rolling element infinite circulation path 4. FIG. 5 is an example in which the retainer is divided into two in the rolling element infinite circulation path 4.
In the example of FIG. 5, one retainer (this retainer is indicated by reference symbol A1) is located in the load region L1, which is the load rolling element rolling path 4A, and the other retainer (this retainer is indicated by reference symbol A2). The retainer A2 located in the no-load region L2 is pushed by the retainer A1 located in the load region L1 when it is located in the no-load region L2 indicated by the no-load rolling element rolling path 4B and the direction changing path 4C. I will run.
By the way, in the case of using a retainer divided into a plurality of parts in this way, no proposal has been made so far on the number of divisions from the viewpoint of stable running of all retainers, and a new technology in this respect Was expected to provide.

この発明は、上述した事情に鑑みてなされたものであって、一つの転動体無限循環路内でリテーナの分割数を最適な値に設定することで、該転動体無限循環路内にて全リテーナを安定走行させることが可能な運動装置の提供を目的とする。   The present invention has been made in view of the above-described circumstances, and by setting the number of retainer divisions to an optimum value in one rolling element infinite circuit, the entire number of the retaining elements in the rolling element infinite circuit is set. An object of the present invention is to provide an exercise device capable of stably running a retainer.

本発明に係る運動装置では、上記課題を解決するために以下の手段を採用した。
本発明は、転動体転走面が形成される軌道体と、前記転動体転走面に対応する負荷転動体転走路、前記負荷転動体転走路に対して略平行に形成される無負荷転動体転走路、及び前記負荷転動体転走路と前記無負荷転動体転走路する一対の方向転換路で構成される転動体無限循環路を有するとともに、前記軌道体に対して相対的に移動可能に組み付けられる移動体と、前記転動体無限循環路に循環可能に配列されて前記移動体と前記軌道体との相対運動に伴って、前記負荷転動体転走路と前記無負荷転動体転走路との間を転動する複数の転動体と、前記転動体無限循環路に配設されて前記複数の転動体を所定の間隔を置いて回転可能に保持する複数の転動体整列具と、を備える運動装置であって、前記複数の転動体整列具の各々の転動方向長さは、前記複数の転動体整列具の内、前記無負荷転動体転走路及び前記方向転換路のみに存在するものがあるとき、前記複数の転動体整列具の内の前記負荷転動体転走路に存在するものの合計転動方向長さが、前記転動体無限循環路の転動体軌道長の１／２よりも長くなるように形成されることを特徴とする。 The exercise device according to the present invention employs the following means in order to solve the above problems.
The present invention relates to a raceway on which rolling element rolling surfaces are formed, a loaded rolling element rolling path corresponding to the rolling element rolling surface, and an unloaded rolling formed substantially parallel to the loaded rolling element rolling path. It has a rolling element infinite circulation path composed of a moving body rolling path, and a pair of direction changing paths that make the loaded rolling body rolling path and the unloaded rolling body rolling path, and is relatively movable with respect to the track body. A moving body to be assembled, and the rolling body infinite circulation path are arranged so as to be able to circulate, and with the relative motion of the moving body and the track body, the loaded rolling body rolling path and the unloaded rolling body rolling path A plurality of rolling elements that roll between them, and a plurality of rolling element alignment tools that are disposed in the rolling element infinite circulation path and that rotatably hold the plurality of rolling elements at a predetermined interval. A rolling direction length of each of the plurality of rolling element alignment tools , Among the plurality of rolling elements aligner, when there is present only in the no-load rolling element rolling passage and the direction changing passage, present in the loaded rolling member rolling passage of the plurality of rolling elements aligner The total rolling direction length of the rolling elements is formed so as to be longer than ½ of the rolling element trajectory length of the rolling element infinite circulation path.

上記のように構成された運動装置によれば、複数の転動体整列具の各々の転動方向長さについて、これら複数の転動体整列具の内、前記無負荷転動体転走路及び前記方向転換路のみに存在するものがあるとき、負荷転動体転走路に存在するものの合計転動方向長さが、転動体無限循環路の転動体軌道長の１／２よりも長くなるように形成するような設定を行うことによって、負荷転動体転走路にて走行力が付与される転動体整列具の全長さ寸法を、無負荷転動体転走路及び方向転換路にて従動走行される転動体整列具の全長さ寸法よりも大きくすることができ、これによって該転動体無限循環路内にて全転動体整列具を安定走行させることができる。




According to the exercise device configured as described above, with respect to the length of each of the plurality of rolling element alignment tools, the unloaded rolling element rolling path and the direction change among the plurality of rolling element alignment tools. When there is something that exists only in the road, the total rolling direction length of what exists in the loaded rolling element rolling path is formed to be longer than ½ of the rolling element trajectory length of the rolling element infinite circulation path. The rolling element alignment tool that is driven by the no-load rolling element rolling path and the direction changing path is set to the total length of the rolling element alignment tool to which the running force is applied on the loaded rolling element rolling path. Thus, the entire rolling element alignment tool can be stably run in the rolling element infinite circulation path.




また、本発明の運動装置では、前記複数の転動体整列具の各々の転動方向長さを、前記負荷転動体転走路の軌道長以下になるよう形成する。   Moreover, in the exercise device of the present invention, the rolling direction length of each of the plurality of rolling element alignment tools is formed to be equal to or shorter than the track length of the loaded rolling element rolling path.

上記のように構成された運動装置によれば、複数の転動体整列具の各々の転動方向長さを、負荷転動体転走路の軌道長以下になるよう形成することで、各転動体整列具の長さが、転動体軌道長の１／２以上とならず、転動体無限循環路内において少なくとも転動体整列具を３分割以上とすることができる。そして、このような３分割以上の転動体整列具によって、負荷転動体転走路に位置する転動体整列具の全長さ寸法を、無負荷転動体転走路に位置する転動体整列具の全長さ寸法よりも大きくするような、転動体整列具の分割が可能となり、該転動体無限循環路内にて全転動体整列具を安定走行させることができる。   According to the exercise device configured as described above, each rolling element alignment is formed by forming the rolling direction length of each of the plurality of rolling element alignment tools to be equal to or less than the track length of the loaded rolling element rolling path. The length of the tool does not become 1/2 or more of the rolling element trajectory length, and at least the rolling element alignment tool can be divided into three or more in the rolling element infinite circulation path. And by such rolling element alignment tools of three or more divisions, the total length dimension of the rolling element alignment tool located in the loaded rolling element rolling path is changed to the total length dimension of the rolling element alignment tool positioned in the no-load rolling element rolling path. The rolling element alignment tool can be divided so as to be larger than that, and the entire rolling element alignment tool can be stably run in the rolling element infinite circulation path.

また、本発明の運動装置では、前記複数の転動体整列具の各々の転動方向長さを、前記方向転換路の軌道長以上になるよう形成することを特徴とする。   In the exercise device according to the present invention, the rolling direction length of each of the plurality of rolling element alignment tools is formed to be equal to or longer than the track length of the direction change path.

上記のように構成された運動装置によれば、複数の転動体整列具の各々の転動方向長さを、方向転換路の軌道長以上になるよう形成することで、各転動体整列具の最小分割数が規定される。これによって転動体無限循環路内にて転動体整列具の総数が必要以上に多くならず、各転動体整列具の最適な分割数の範囲を設定することができる。   According to the exercise device configured as described above, by forming the rolling direction length of each of the plurality of rolling element alignment tools to be equal to or longer than the track length of the direction change path, A minimum number of divisions is defined. Thereby, the total number of rolling element alignment tools does not increase more than necessary in the rolling element infinite circulation path, and the optimum range of the number of divisions of each rolling element alignment tool can be set.

また、本発明の運動装置では、前記複数の転動体整列具の総数が奇数であることを特徴とする。   In the exercise device of the present invention, the total number of the plurality of rolling element alignment tools is an odd number.

上記のように構成された運動装置によれば、複数の転動体整列具の総数である分割数を奇数とすることで、負荷転動体転走路にて走行力が付与される転動体整列具の全長さ寸法を、無負荷転動体転走路にて従動走行される転動体整列具の全長さ寸法と異ならせ、かつ該転動体整列具の全長さ寸法よりも長くするような設定が可能となり、この点においても、転動体無限循環路内にて全転動体整列具を安定走行させることができる。   According to the exercise device configured as described above, the number of divisions, which is the total number of the plurality of rolling element alignment tools, is set to an odd number, whereby the rolling element alignment tool to which traveling force is applied on the loaded rolling element rolling path is provided. It is possible to set the total length dimension to be different from the total length dimension of the rolling element alignment tool driven by the unloaded rolling element rolling path and to be longer than the total length dimension of the rolling element alignment tool. Also in this point, all the rolling element alignment tools can be stably run in the rolling element infinite circulation path.

また、本発明の運動装置では、前記複数の転動体整列具の総数を３つと規定することを特徴とする。   In the exercise device of the present invention, the total number of the plurality of rolling element alignment tools is defined as three.

上記のように構成された運動装置によれば、複数の転動体整列具の総数である分割数を３と規定することで、負荷転動体転走路にて走行力が付与される転動体整列具の全長さ寸法を、無負荷転動体転走路にて従動走行される転動体整列具の全長さ寸法に対して、最長とする設定が可能となり、転動体無限循環路内にて全転動体整列具を最高に安定した状態で走行させることが可能となる。   According to the exercise device configured as described above, by defining the number of divisions, which is the total number of the plurality of rolling element alignment tools, as 3, the rolling element alignment tools to which running force is applied on the loaded rolling element rolling path It is possible to set the total length dimension of the rolling element to be the longest of the total length dimension of the rolling element alignment tool driven by the unloaded rolling element rolling path. It is possible to run the tool in the most stable state.

本発明によれば以下の効果を得ることができる。
複数の転動体整列具の各々の転動方向長さについて、これら複数の転動体整列具の内の負荷転動体転走路に存在するものの合計転動方向長さが、転動体無限循環路の転動体軌道長の１／２よりも長くなるように形成するような設定を行うことによって、負荷転動体転走路にて走行力が付与される転動体整列具の全長さ寸法を、無負荷転動体転走路にて従動走行される転動体整列具の全長さ寸法よりも大きくすることができ、これによって該転動体無限循環路内にて全転動体整列具を安定走行させることができる効果が奏される。 According to the present invention, the following effects can be obtained.
Regarding the rolling direction length of each of the plurality of rolling element alignment tools, the total rolling direction length of those rolling element alignment tools that are present in the loaded rolling element rolling path of these multiple rolling element alignment tools is the rolling element infinite rolling circuit. By setting so as to be longer than 1/2 of the moving body track length, the total length dimension of the rolling element alignment tool to which the running force is applied in the loaded rolling element rolling path is set to be an unloaded rolling element. The length of the rolling element alignment tool driven by the rolling path can be made larger than that of the rolling element alignment tool, and thereby, the rolling element alignment tool can stably travel in the rolling element infinite circulation path. Is done.

以下、本発明に係る運動装置の実施形態について図面を参照して説明する。
なお、以下の説明では、用語を以下に示すように定める。
すなわち、図１中に記述したように、Ｌ１ａは負荷転動体転走路４Ａからなる負荷域Ｌ１の軌道長、Ｌ２ａは無負荷転動体転走路４Ｂ及び方向転換路４Ｃからなる無負荷域Ｌ２の軌道長であり、これら軌道長Ｌ１ａとＬ２ａの合計が、転動体無限循環路４の軌道長（Ｌ）となる。
また、Ｍ１は負荷域Ｌ１にあるリテーナＡ（図１ではＡ１，Ａ２（負荷域Ｌ１に一部でも掛かるリテーナＡ２も含む））の転動方向に沿う全長さ寸法、Ｍ２は無負荷域Ｌ２内にあるリテーナＡ（図１ではＡ３）の転動方向に沿う全長さ寸法であり、これら長さ寸法Ｍ１とＭ２の合計が、リテーナＡ（図１ではＡ１，Ａ２，Ａ３）の全長さ寸法となる。
また、符号ｍは等分割されたリテーナＡ（Ａ１〜Ａｎ）のそれぞれの長さ寸法を示し、符号ｎはリテーナＡ（Ａ１〜Ａｎ）の総数、つまり分割数を示している。なお、リテーナＡ１〜Ａｎの各々の長さは、同一（均一）である。 Embodiments of an exercise device according to the present invention will be described below with reference to the drawings.
In the following description, terms are defined as follows.
That is, as described in FIG. 1, L1a is the track length of the load region L1 including the loaded rolling element rolling path 4A, and L2a is the track of the no-load area L2 including the no-load rolling element rolling path 4B and the direction changing path 4C. The total of these track lengths L1a and L2a is the track length (L) of the rolling element infinite circulation path 4.
Further, M1 is a total length dimension along the rolling direction of the retainer A (A1 and A2 (including a retainer A2 that is partially applied to the load region L1) in FIG. 1) in the load region L1, and M2 is in the no-load region L2. Is the total length along the rolling direction of the retainer A (A3 in FIG. 1), and the total of these lengths M1 and M2 is the total length of the retainer A (A1, A2, A3 in FIG. 1). Become.
The symbol m indicates the length of each of the equally divided retainers A (A1 to An), and the symbol n indicates the total number of retainers A (A1 to An), that is, the number of divisions. The lengths of the retainers A1 to An are the same (uniform).

なお、リテーナ（転動体整列具）Ａ（Ａ１〜Ａｎ）は、転動体無限循環路４に配設された複数の転動体６を所定の間隔をもって回転可能に整列させ、また保持するものであって、有端転動体チェーンを構成する。そして、有端転動体チェーンであるリテーナＡ（Ａ１〜Ａｎ）が転動体無限循環路４内に複数本が組み込まれている。
これにより、移動体５が軌道体３に対して移動すると、転動体無限循環路４の負荷転動体転走路４Ａにて、転動体６が荷重を支承しながら転動する。この負荷転動体転走路４Ａでの転動体６の移動によって、有端転動体チェーンであるリテーナＡ（Ａ１〜Ａｎ）が転動体無限循環路４内を無限循環する。
その際、同じ転動体無限循環路４内の無負荷転動体転走路４Ｂ及び方向転換路４Ｃ内にあるリテーナＡは、負荷転動体転走路４Ａ内のリテーナＡによって後方から押されることで、該無負荷転動体転走路４Ｂ及び方向転換路４Ｃ内を従動走行して、再び負荷転動体転走路４Ａに到達することになる。 The retainer (rolling element aligning tool) A (A1 to An) aligns and holds a plurality of rolling elements 6 disposed in the rolling element infinite circulation path 4 so as to be rotatable at a predetermined interval. Thus, the end rolling element chain is configured. A plurality of retainers A (A1 to An) which are endless rolling element chains are incorporated in the rolling element infinite circulation path 4.
Thereby, when the moving body 5 moves with respect to the track body 3, the rolling element 6 rolls while supporting the load in the loaded rolling element rolling path 4 </ b> A of the rolling element infinite circulation path 4. Due to the movement of the rolling element 6 in the loaded rolling element rolling path 4A, the retainers A (A1 to An), which are end rolling element chains, circulate infinitely in the rolling element infinite circulation path 4.
At that time, the retainer A in the unloaded rolling element rolling path 4B and the direction changing path 4C in the same rolling element infinite circulation path 4 is pushed from behind by the retainer A in the loaded rolling element rolling path 4A. It follows the unloaded rolling element rolling path 4B and the direction changing path 4C to reach the loaded rolling element rolling path 4A again.

本実施形態に係る運動装置では、以下の関係（１）〜（３）に基づき、転動体無限循環路４内に配置されるリテーナＡ（Ａ１〜Ａｎ）の分割数（ｎ）が規定される。   In the exercise device according to the present embodiment, the division number (n) of the retainers A (A1 to An) disposed in the rolling element infinite circulation path 4 is defined based on the following relationships (1) to (3). .

（１）複数のリテーナＡ（Ａ１〜Ａｎ）の各々の転動方向長さ寸法（ｍ）について、該複数のリテーナＡ（Ａ１〜Ａｎ）の内の負荷転動体転走路４Ａに存在するリテーナＡの合計転動方向長さ寸法Ｍ１を、転動体無限循環路４の軌道長Ｌ（＝Ｌ１ａ＋Ｌ２ａ）の１／２よりも長くなるように設定する。
すなわち、
Ｍ１＞Ｌ／２
という関係に設定する。 (1) Retainer A present in the loaded rolling element rolling path 4A of the plurality of retainers A (A1 to An) with respect to each length (m) in the rolling direction of the plurality of retainers A (A1 to An) Is set to be longer than ½ of the track length L (= L1a + L2a) of the rolling element infinite circulation path 4.
That is,
M1> L / 2
Set the relationship.

これにより、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１を、無負荷域Ｌ２にて従動走行されるリテーナＡの全長さ寸法Ｍ２よりも大きくすることができ、該転動体無限循環路４内でのリテーナＡ（Ａ１〜Ａｎ）の安定走行を可能とする。   As a result, the total length M1 of the retainer A in the load region L1 to which the traveling force is applied can be made larger than the total length M2 of the retainer A driven in the no-load region L2. The stable running of the retainer A (A1 to An) in the moving body infinite circulation path 4 is enabled.

（２）複数のリテーナＡ（Ａ１〜Ａｎ）の各々の転動方向長さ寸法（ｍ）を、負荷域Ｌ１を構成する負荷転動体転走路４Ａの軌道長Ｌ１ａ以下になるように設定する。
すなわち、
ｍ≦Ｌ１ａ
とする。 (2) The rolling direction length dimension (m) of each of the plurality of retainers A (A1 to An) is set to be equal to or shorter than the track length L1a of the loaded rolling element rolling path 4A constituting the load region L1.
That is,
m ≦ L1a
And

これにより、各リテーナＡ（Ａ１〜Ａｎ）の長さ寸法（ｍ）が、転動体無限循環路４の軌道長Ｌの１／２以上とならず、転動体無限循環路４内においてリテーナＡ（Ａ１〜Ａｎ）を少なくとも３分割以上とすることができる。   Thereby, the length dimension (m) of each retainer A (A1 to An) does not become 1/2 or more of the track length L of the rolling element infinite circulation path 4, and the retainer A ( A1 to An) can be divided into at least three or more.

（３）複数のリテーナＡ（Ａ１〜Ａｎ）の各々の転動方向長さ寸法（ｍ）を、方向転換路４Ｃの軌道長（図１に符号Ｌ３ａで示す）以上になるよう設定する。
すなわち、
ｍ≧Ｌ３ａ
とする。 (3) The rolling direction length dimension (m) of each of the plurality of retainers A (A1 to An) is set to be equal to or longer than the track length of the direction change path 4C (indicated by reference numeral L3a in FIG. 1).
That is,
m ≧ L3a
And

これにより、転動体無限循環路４内におけるリテーナＡ（Ａ１〜Ａｎ）の最小分割数が規定され、これによって転動体無限循環路４にてリテーナＡ（Ａ１〜Ａｎ）が必要以上に多くならず、各リテーナＡ（Ａ１〜Ａｎ）の最適な分割数（ｎ）の範囲を設定することが可能となる。   Thereby, the minimum division | segmentation number of the retainer A (A1-An) in the rolling-element infinite circuit 4 is prescribed | regulated, and, thereby, the retainer A (A1-An) does not increase more than necessary in the rolling-element infinite circuit 4. Thus, it is possible to set the optimum range of the number of divisions (n) of the retainers A (A1 to An).

そして、以上のような設定に基づき、リテーナＡ（Ａ１〜Ａｎ）の最適な分割数（ｎ）について検証する。
まず、リテーナＡの分割数（ｎ）については、上記（１），（２）の条件に示されるように、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１を、無負荷域Ｌ２にて従動走行されるリテーナＡの全長さ寸法Ｍ２よりも大きくするという観点から、これら寸法Ｍ１と寸法Ｍ２の相違を大きく出せる奇数の分割数（ｎ）であることが好ましい。 And based on the above settings, it verifies about the optimal division | segmentation number (n) of the retainer A (A1-An).
First, regarding the number of divisions (n) of the retainer A, as shown in the conditions (1) and (2) above, the total length dimension M1 of the retainer A in the load region L1 to which the running force is applied is set to be the same. From the viewpoint of increasing the overall length M2 of the retainer A driven in the load region L2, it is preferable that the number of divisions (n) is an odd number that can greatly increase the difference between the dimensions M1 and M2.

すなわち、ｎ＝２、４、６・・といった偶数の分割数（ｎ）では、図２（ａ）及び図５に示したように、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１が、転動体無限循環路４の軌道長Ｌ（＝Ｌ１ａ＋Ｌ２ａ）の１／２とほぼ同じとなって、十分な走行力を確保できない。
このために、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１を、無負荷域Ｌ２にて従動走行されるリテーナＡの全長さ寸法Ｍ２よりも明確に大きくして、十分な走行力を確保できる奇数の分割数（ｎ）であることが好ましい（この点についても以下に再度説明する）。 That is, with an even number of divisions (n) such as n = 2, 4, 6,..., As shown in FIGS. 2 (a) and 5, the total length of the retainer A in the load region L1 to which the running force is applied. The length M1 is substantially the same as ½ of the track length L (= L1a + L2a) of the rolling element infinite circulation path 4, and sufficient traveling force cannot be secured.
For this purpose, the full length dimension M1 of the retainer A in the load region L1 to which the traveling force is applied is clearly larger than the full length dimension M2 of the retainer A driven in the no-load region L2, It is preferable that the number of divisions is an odd number (n) that can ensure a sufficient traveling force (this will be described again below).

図２（ａ）はリテーナＡの分割数（ｎ）がｎ＝２の場合、図２（ｂ）はリテーナＡの分割数（ｎ）がｎ＝３の場合、図２（ｃ）はリテーナＡの分割数（ｎ）がｎ＝５の場合、図２（ｄ）はリテーナＡの分割数（ｎ）がｎ＝７の場合の例（分割数に応じてリテーナ（Ａ１〜Ａ７とする）である。   2A shows a case where the number of divisions (n) of the retainer A is n = 2, FIG. 2B shows a case where the number of divisions (n) of the retainer A is n = 3, and FIG. FIG. 2D shows an example in which the number of divisions (n) of the retainer A is n = 7 (retainers (A1 to A7) depending on the number of divisions). is there.

これら図を参照して分かるように、リテーナＡの分割数（ｎ）がｎ＝２とした場合には、負荷転動体転走路４Ａにて走行力が付与される負荷域Ｌ１内のリテーナＡ１の全長さ寸法Ｍ１が、他の分割数（ｎ）と比較して最小となる。このｎ＝２をさらに分割したｎ＝４、ｎ＝６、ｎ＝８、…といった偶数の分割数（ｎ）についても、ｎ＝２と同様のリテーナＡ（Ａ１〜Ａｎ）の長さ寸法Ｍ１、Ｍ２の関係となる。
このために、リテーナＡ（Ａ１〜Ａｎ）の安定走行を図るという目的においては、分割数（ｎ）は、偶数よりも奇数の方が良いことが分る。 As can be seen with reference to these figures, when the division number (n) of the retainer A is set to n = 2, the retainer A1 in the load region L1 in which the traveling force is applied in the load rolling element rolling path 4A. The total length dimension M1 is minimum as compared with other division numbers (n). For an even number of divisions (n) such as n = 4, n = 6, n = 8,... Obtained by further dividing n = 2, the length dimension M1 of the retainer A (A1 to An) is the same as that of n = 2. , M2.
For this reason, it can be seen that the number of divisions (n) is better than the even number for the purpose of achieving stable running of the retainers A (A1 to An).

一方、奇数の分割数（ｎ）が、ｎ＝３、ｎ＝５、ｎ＝７と増加する場合、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１が、分割数ｎ＝３を最大値として、ｎ＝５、ｎ＝７、…と増加するに従って減少する。このために、リテーナＡ（Ａ１〜Ａｎ）の安定走行を図るためには、分割数ｎ＝３が最適な数値であることが分る。
また、リテーナＡ（Ａ１〜Ａｎ）をどこまで分割できるかという点については、上述した（３）の条件にて上限を定めており、方向転換路４Ｃの軌道長（符号Ｌ３ａで示す）が、リテーナＡ（Ａ１〜Ａｎ）の長さ寸法（ｍ）の最小値となる。 On the other hand, when the odd number of divisions (n) increases as n = 3, n = 5, and n = 7, the total length M1 of the retainer A in the load region L1 to which the traveling force is applied is equal to the division number n. = 3 is the maximum value, and decreases as n = 5, n = 7,. For this reason, it can be seen that the division number n = 3 is an optimal value in order to achieve stable running of the retainers A (A1 to An).
Further, as to how far the retainer A (A1 to An) can be divided, an upper limit is set under the condition (3) described above, and the track length of the direction change path 4C (indicated by the symbol L3a) is the retainer. This is the minimum value of the length dimension (m) of A (A1 to An).

そして、摺動案内装置１は、以上のような設定に基づいて分割数が規定されたリテーナＡ（Ａ１〜Ａｎ）を備えることで、当該摺動案内装置１によれば、複数のリテーナＡ（Ａ１〜Ａｎ）の各々の転動方向長さ寸法（ｍ）について、該複数のリテーナＡ（Ａ１〜Ａｎ）の内の負荷転動体転走路４Ａに存在するリテーナＡの合計転動方向長さ寸法Ｍ１を、転動体無限循環路４の軌道長Ｌの１／２よりも長くなるように設定することによって、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１を、無負荷域Ｌ２にて従動走行されるリテーナＡの全長さ寸法Ｍ２よりも大きくすることができ、これによって該転動体無限循環路４内にて全リテーナＡ（Ａ１〜Ａｎ）を安定走行させることができる。   And the sliding guide apparatus 1 is provided with the retainer A (A1-An) by which the division | segmentation number was prescribed | regulated based on the above settings, According to the said sliding guide apparatus 1, several retainer A ( The total rolling direction length dimension of the retainer A existing in the loaded rolling element rolling path 4A of the plurality of retainers A (A1 to An) with respect to each rolling direction length dimension (m) of A1 to An). By setting M1 to be longer than ½ of the track length L of the rolling element infinite circulation path 4, the full length dimension M1 of the retainer A in the load region L1 to which the traveling force is applied is set to no load. The overall length M2 of the retainer A driven in the region L2 can be made larger, whereby all the retainers A (A1 to An) can be stably traveled in the rolling element infinite circulation path 4. .

また、上記のように構成された摺動案内装置１によれば、複数のリテーナＡ（Ａ１〜Ａｎ）の各々の転動方向長さ寸法（ｍ）を、負荷転動体転走路４Ａの負荷転動体転走路４Ａの軌道長Ｌ１ａ以下になるよう形成することで、各リテーナＡ（Ａ１〜Ａｎ）の長さ寸法（ｍ）が、転動体軌道長の１／２以上とならず、転動体無限循環路４内において少なくともリテーナＡ（Ａ１〜Ａｎ）を３分割以上とすることができる。そして、このような３分割以上のリテーナＡ（Ａ１〜Ａｎ）によって、負荷転動体転走路４Ａに位置するリテーナＡの全長さ寸法Ｍ１を、無負荷転動体転走路４Ｂに位置するリテーナＡの全長さ寸法Ｍ２よりも大きくするような、リテーナＡ（Ａ１〜Ａｎ）の分割が可能となり、該転動体無限循環路４内にて全リテーナＡ（Ａ１〜Ａｎ）を安定走行させることができる。   Further, according to the sliding guide device 1 configured as described above, the length dimension (m) of each of the plurality of retainers A (A1 to An) in the rolling direction is set to the load rolling force of the load rolling element rolling path 4A. The length (m) of each retainer A (A1 to An) does not become 1/2 or more of the rolling element track length by forming the rolling element rolling path 4A to be equal to or less than the track length L1a. In the circulation path 4, at least the retainer A (A1 to An) can be divided into three or more. And by such retainer A (A1-An) of 3 or more divisions, the full length dimension M1 of the retainer A located in the load rolling-element rolling path 4A is made into the full length of the retainer A located in the no-load rolling-element rolling path 4B. The retainers A (A1 to An) can be divided so as to be larger than the dimension M2, and all the retainers A (A1 to An) can be stably run in the rolling element infinite circulation path 4.

また、上記のように構成された摺動案内装置１によれば、複数のリテーナＡ（Ａ１〜Ａｎ）の各々の転動方向長さ寸法（ｍ）を、方向転換路４Ｃの軌道長（符号Ｌ３ａで示す）以上になるよう形成することで、各リテーナＡ（Ａ１〜Ａｎ）の最小分割数が規定される。これによって転動体無限循環路４内にてリテーナＡ（Ａ１〜Ａｎ）が必要以上に多くならず、各リテーナＡ（Ａ１〜Ａｎ）の最適な分割数の範囲を設定することが可能となる。   Further, according to the sliding guide device 1 configured as described above, the length dimension (m) in the rolling direction of each of the plurality of retainers A (A1 to An) is set to the track length (reference numeral 4C). The minimum number of divisions of each retainer A (A1 to An) is defined by forming so as to be equal to or greater than (indicated by L3a). As a result, the number of retainers A (A1 to An) does not increase more than necessary in the rolling element infinite circulation path 4, and it is possible to set the optimum range of division numbers of the retainers A (A1 to An).

また、上記のように構成された摺動案内装置１によれば、複数のリテーナＡ（Ａ１〜Ａｎ）の総数である分割数（ｎ）を奇数とすることで、走行力が付与される負荷域Ｌ１内のリテーナＡの全長さ寸法Ｍ１を、無負荷域Ｌ２にて従動走行されるリテーナＡの全長さ寸法Ｍ２と異ならせ、かつ該リテーナＡ（Ａ１〜Ａｎ）の全長さ寸法Ｍ２より長くするような設定が可能となり、この点においても、転動体無限循環路４内にて全リテーナＡ（Ａ１〜Ａｎ）を安定走行させることが可能となる。   Moreover, according to the sliding guide apparatus 1 comprised as mentioned above, the load to which running force is provided by making the division | segmentation number (n) which is the total number of several retainer A (A1-An) into an odd number. The total length M1 of the retainer A in the region L1 is different from the total length M2 of the retainer A driven in the no-load region L2, and is longer than the total length M2 of the retainer A (A1 to An). In this respect, all the retainers A (A1 to An) can be made to travel stably in this point.

上記のように構成された摺動案内装置１によれば、複数のリテーナＡ（Ａ１〜Ａ３）の総数である分割数ｎ＝３と規定することで、走行力が付与される負荷域Ｌ１内のリテーナＡ（例えば、Ａ１，Ａ２）の全長さ寸法Ｍ１を、無負荷域Ｌ２にて従動走行されるリテーナＡ（例えば、Ａ３）の全長さ寸法Ｍ２に対して、最長とする設定が可能となり（図２（ｂ）参照）、転動体無限循環路４内にて全リテーナＡ（Ａ１〜Ａ３）を最高に安定した状態で走行させることが可能となる。   According to the sliding guide device 1 configured as described above, by defining the division number n = 3, which is the total number of the plurality of retainers A (A1 to A3), in the load region L1 to which traveling force is applied. The total length M1 of the retainer A (for example, A1, A2) can be set to be the longest with respect to the total length M2 of the retainer A (for example, A3) driven in the no-load region L2. (See FIG. 2 (b)), it becomes possible to run all the retainers A (A1 to A3) in the rolling element infinite circulation path 4 in the most stable state.

以上、本発明の実施形態について図面を参照して詳述したが、具体的な構成はこの実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。 As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

例えば、本発明に係る運動装置としては、摺動案内装置に限らず、例えばボールスプライン装置であってもよい。
また、転動体としては、ボール、ローラのいずれであってもよい。 For example, the exercise device according to the present invention is not limited to the sliding guide device, and may be, for example, a ball spline device.
Further, the rolling element may be either a ball or a roller.

本発明に係る運動装置のリテーナの長さ寸法を説明するための図The figure for demonstrating the length dimension of the retainer of the exercise device which concerns on this invention リテーナの分割数を説明するための図である。It is a figure for demonstrating the division | segmentation number of a retainer. 運動装置を示す図である。It is a figure which shows an exercise device. 従来のリテーナを示す図である。It is a figure which shows the conventional retainer. 従来のリテーナ（２分割形）を示す図である。It is a figure which shows the conventional retainer (2 division type).

符号の説明Explanation of symbols

１…摺動案内装置（運動装置）
２…転動体転走面
３…軌道台（軌道体）
４…転動体無限循環路
４Ａ…負荷転動体転走路
４Ｂ…無負荷転動体転走路
４Ｃ…方向転換路
５…移動体
６…転動体
Ａ，Ａ１〜Ａｎ…リテーナ（転動体整列具）
Ｍ１…負荷域にあるリテーナの長さ寸法
Ｍ２…無負荷域にあるリテーナの長さ寸法
Ｌ１…負荷域
Ｌ２…無負荷域
Ｌ１ａ…負荷域の軌道長
Ｌ２ａ…無負荷域の軌道長
Ｌ…転動体無限循環路の合計軌道長さ
ｍ…各リテーナの長さ寸法
ｎ…リテーナの分割数（総数） 1. Sliding guide device (exercise device)
2 ... rolling element rolling surface 3 ... rail way (track body)
DESCRIPTION OF SYMBOLS 4 ... Rolling body infinite circuit 4A ... Load rolling-element rolling path 4B ... Unloaded rolling-element rolling path 4C ... Direction changing path 5 ... Moving body 6 ... Rolling body A, A1-An ... Retainer (rolling-element alignment tool)
M1: Length dimension of the retainer in the load area M2: Length dimension of the retainer in the no load area L1: Load area L2: No load area L1a: Track length in the load area L2a: Track length in the no load area L: Rolling Total trajectory length of moving body infinite circulation path m ... Length dimension of each retainer n ... Number of retainer divisions (total)

Claims (4)

転動体転走面が形成される軌道体と、
前記転動体転走面に対応する負荷転動体転走路、前記負荷転動体転走路に対して略平行に形成される無負荷転動体転走路、及び前記負荷転動体転走路と前記無負荷転動体転走路とを接続する一対の方向転換路で構成される転動体無限循環路を有するとともに、前記軌道体に対して相対的に移動可能に組み付けられる移動体と、
前記転動体無限循環路に循環可能に配列されて前記移動体と前記軌道体との相対運動に伴って、前記負荷転動体転走路と前記無負荷転動体転走路との間を転動する複数の転動体と、
前記転動体無限循環路に配設されて前記複数の転動体を所定の間隔を置いて回転可能に保持する複数の転動体整列具と、
を備える運動装置において、
前記複数の転動体整列具の各々の転動方向長さは、前記複数の転動体整列具の内、前記無負荷転動体転走路及び前記方向転換路のみに存在するものがあるとき、前記負荷転動体転走路に存在するものの合計転動方向長さが、前記転動体無限循環路の転動体軌道長の１／２よりも長くなるように形成されることを特徴とする運動装置。 A track body on which a rolling element rolling surface is formed;
A loaded rolling element rolling path corresponding to the rolling element rolling surface, an unloaded rolling element rolling path formed substantially parallel to the loaded rolling element rolling path, and the loaded rolling element rolling path and the unloaded rolling element A moving body that has a rolling element infinite circulation path composed of a pair of direction change paths connecting the rolling path, and is assembled to be movable relative to the track body;
A plurality of rolling elements arranged in a circulating manner on the rolling element infinite circuit and rolling between the loaded rolling element rolling path and the unloaded rolling element rolling path in association with the relative movement of the movable body and the track body. Rolling elements of
A plurality of rolling element alignment tools disposed in the rolling element infinite circulation path and rotatably holding the plurality of rolling elements at a predetermined interval;
In an exercise device comprising:
When the rolling direction length of each of the plurality of rolling element alignment tools is present only in the unloaded rolling element rolling path and the direction changing path among the plurality of rolling element alignment tools, An exercise device characterized in that a total rolling direction length of a rolling element rolling path is longer than a half of a rolling element trajectory length of the rolling element infinite circulation path. 前記複数の転動体整列具の各々の転動方向長さは、前記負荷転動体転走路の軌道長以下になるよう形成されることを特徴とする請求項１に記載の運動装置。   The exercise device according to claim 1, wherein each of the plurality of rolling element alignment tools has a rolling direction length that is equal to or shorter than a track length of the loaded rolling element rolling path. 前記複数の転動体整列具の各々の転動方向長さは、前記方向転換路の軌道長以上になるよう形成されることを特徴とする請求項１又は請求項２のいずれか１項に記載の運動装置。   The rolling direction length of each of the plurality of rolling element alignment tools is formed so as to be equal to or longer than the track length of the direction changing path. Exercise equipment. 前記複数の転動体整列具の総数が奇数であることを特徴とする請求項１から請求項３のいずれか１項に記載の運動装置。   4. The exercise device according to claim 1, wherein a total number of the plurality of rolling element alignment tools is an odd number. 5.
JP2008093177A 2008-03-31 2008-03-31 Exercise equipment Active JP5265227B2 (en)

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JP3263005B2 (en) * 1997-06-13 2002-03-04 テイエチケー株式会社 Rolling guide device
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