JP4662858B2 - Advance and retreat drive chain - Google Patents

Advance and retreat drive chain Download PDF

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JP4662858B2
JP4662858B2 JP2006025947A JP2006025947A JP4662858B2 JP 4662858 B2 JP4662858 B2 JP 4662858B2 JP 2006025947 A JP2006025947 A JP 2006025947A JP 2006025947 A JP2006025947 A JP 2006025947A JP 4662858 B2 JP4662858 B2 JP 4662858B2
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chain
advancing
retreating
block
guide shaft
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JP2007205487A (en
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裕樹 石田
俊児 佐倉
亨 和田
俊光 酒井
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Tsubakimoto Chain Co
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Tsubakimoto Chain Co
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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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/18—Chains having special overall characteristics
    • F16G13/20—Chains having special overall characteristics stiff; Push-pull chains

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Description

本発明は、正逆回転可能な駆動手段との協動により進退可能に順次連続して繰り出される進退駆動用チェーンに関する。   The present invention relates to an advancing / retreating drive chain that is successively and continuously extended so as to be capable of advancing and retreating in cooperation with a drive means that can rotate forward and backward.

従来、正逆回転可能な駆動手段により進退可能に繰り出される進退駆動用チェーンとして、ここでは図示しないが、噛合部を有するリンクプレートをチェーン長手方向に多数連結するとともに一対のスプロケットの下方両外側からそれぞれのスプロケットのスプロケット歯が向かい合う間隙を介して垂直上方に屈曲させた自立状態で昇降台を昇降させるように構成された噛合いチェーンがある（特許文献１参照）。
また、屈曲防止用の規制部材を備えて正逆回転可能な駆動スプロケットにより進退可能に安定よく繰り出した伸長状態で自立させて昇降台を昇降させるように構成されたチェーンがある（特許文献２参照）。
特開平１１−２７８７９７号公報 特開平９−２４９３９４号公報 Conventionally, as an advancing / retracting drive chain that is extended and retracted by a drive means capable of rotating in the forward and reverse directions, although not shown here, a large number of link plates having meshing portions are connected in the longitudinal direction of the chain and from the lower outer sides of a pair of sprockets There is a meshing chain configured to raise and lower a lifting platform in a self-supporting state in which the sprocket teeth of each sprocket are bent vertically upward through a gap facing each other (see Patent Document 1).
In addition, there is a chain that includes a regulating member for preventing bending and is configured to be lifted up and down by self-supporting in an extended state that is stably extended so as to be able to advance and retreat by a drive sprocket that can rotate forward and backward (see Patent Document 2). ).
JP 11-278797 A Japanese Patent Laid-Open No. 9-249394

しかしながら、前者の噛合いチェーンでは、噛合部を有するリンクプレートが偏平体であるため、金属製であってもチェーン剛性が不足して不安定なチェーン伸長姿勢となり、このような噛合いチェーンを組み込んだ進退駆動機構における進退動作の高精度化が期待できないという問題があり、また、これを解消するためにリンクプレートを厚くするか、あるいは、チェーンを多列に配置すると、チェーン重量が増大して、このような噛合いチェーンを組み込んだ進退駆動機構の重量化が回避できないという問題があった。   However, in the former meshing chain, the link plate having the meshing part is a flat body, so even if it is made of metal, the chain rigidity is insufficient and the chain is in an unstable posture, and such a meshing chain is incorporated. There is a problem that high accuracy of the forward / backward movement in the forward / backward drive mechanism cannot be expected, and to solve this problem, if the link plate is made thicker or the chains are arranged in multiple rows, the chain weight increases. However, there is a problem that the weight of the advance / retreat drive mechanism incorporating such a meshing chain cannot be avoided.

また、後者のチェーンでは、相互に背中合わせに対向配置して進退駆動させた場合、チェーン伸長姿勢の不用意な屈曲を阻止することができるものの、チェーン長手方向の相対的な動きとチェーン長手方向と直角方向の動きが発生してチェーン剛性を十分に発揮できず、チェーン伸長形態とチェーン伸長方向が不安定であり、伸長姿勢のチェーン先端位置を精度良く安定して位置付けできず、結局、進退動作の高精度化を依然として達成できないという問題があった。   Further, in the latter chain, when the two chains are opposed to each other and are driven to advance and retreat, it is possible to prevent inadvertent bending of the chain extension posture, but the relative movement in the chain longitudinal direction and the chain longitudinal direction The chain does not exhibit sufficient rigidity due to the movement in the right-angle direction, the chain extension form and the chain extension direction are unstable, and the chain tip position in the extended posture cannot be positioned accurately and stably. There was a problem that the high accuracy of the system could not be achieved.

そこで、本発明は、前述したような従来の問題を解決するものであって、すなわち、本発明の目的は、強固なチェーン剛性と優れた耐久性を発揮するとともに捩れることなく真っすぐに繰り出して高精度で安定した進退動作を達成し、しかもチェーン部品の成形と組み立てが簡便で軽量化を達成する進退駆動用チェーンを提供することにある。   Therefore, the present invention solves the conventional problems as described above, that is, the object of the present invention is to provide a strong chain rigidity and excellent durability, and to extend straight without twisting. An object of the present invention is to provide an advancing / retracting drive chain that achieves a highly accurate and stable advancing / retreating operation and that is easy to form and assemble chain components and achieves a light weight.

まず、本請求項１に係る発明は、チェーンブロックを連結ピンで相互に屈曲自在に多数連結して正逆回転可能な駆動手段との協動により進退可能に順次連続して繰り出される進退駆動用チェーンにおいて、前記チェーンブロックが、相互に背中合わせに対向配置して係合する段差状係合部と該段差状係合部をチェーン長手方向に貫通して延びる溝状ガイドシャフト当接部とを備えているとともに合成樹脂で一体成形され、前記チェーンブロックの溝状ガイドシャフト当接部が、ガイドシャフトの多角形外周面に対応して相互に回り止めする多角形内周面を備えていることによって、前記課題を解決するものである。   First, the invention according to claim 1 is for advancing / retracting drive in which a number of chain blocks are connected to each other by connecting pins so that they can be bent to each other, and are sequentially and continuously extended in cooperation with drive means capable of rotating forward and reverse. In the chain, the chain block includes a stepped engagement portion that is disposed opposite to each other and engaged with each other, and a groove-shaped guide shaft contact portion that extends through the stepped engagement portion in the chain longitudinal direction. And the groove-shaped guide shaft abutting portion of the chain block is provided with a polygonal inner peripheral surface that prevents mutual rotation corresponding to the polygonal outer peripheral surface of the guide shaft. The above-mentioned problem is solved.

そして、本請求項２に係る進退駆動用チェーンは、本請求項１に記載された発明の構成に加えて、前記チェーンブロックが、チェーン長手方向に相互隣接して縦横寸法の近似するブロック横断面を備えていることによって、前記課題を解決するものである。   The chain for advancing / retreating driving according to claim 2 has, in addition to the configuration of the invention described in claim 1, block cross-sections in which the chain blocks are adjacent to each other in the longitudinal direction of the chain and have approximate vertical and horizontal dimensions. By providing the above, the above-mentioned problem is solved.

また、本請求項３に係る進退駆動用チェーンは、本請求項１または本請求項２に記載された発明の構成に加えて、前記チェーンブロックが、ブロック側面にチェーン長手方向に貫通して延びる溝状アタッチメント取付部を備えていることによって、前記課題を解決するものである。   In addition to the configuration of the invention described in claim 1 or claim 2, the chain for advancing and retracting drive according to claim 3 extends in the chain longitudinal direction on the side surface of the block. The said subject is solved by providing the groove-shaped attachment attaching part.

また、本請求項４に係る進退駆動用チェーンは、請求項１乃至請求項３のいずれかに記載された発明の構成に加えて、前記駆動手段が、前記連結ピンを挿通する連結ボス部に噛み合うスプロケットであることによって、前記課題を解決するものである。   In addition to the configuration of the invention described in any one of claims 1 to 3, the advancing / retreating drive chain according to a fourth aspect of the present invention has a connecting boss portion through which the connecting pin is inserted. The above-described problems are solved by the meshing sprocket.

本発明は、チェーンブロックを連結ピンで相互に屈曲自在に多数連結して正逆回転可能な駆動手段との協動により進退可能に順次連続して繰り出される進退駆動用チェーンにおいて、上述したような構成を備えていることによって、以下のような特有の効果を奏するものである。
すなわち、本請求項１に係る進退駆動用チェーンは、チェーンブロックが相互に背中合わせに対向配置して係合する段差状係合部と該段差状係合部をチェーン長手方向に貫通して延びる溝状ガイドシャフト当接部とを備えていることによって、一対の進退駆動用チェーンを相互に背中合わせに対向配置させた場合、進退駆動用チェーンの段差状係合部が相互に噛み合ってチェーン長手方向の相対的な動きとチェーン長手方向と直角方向の動きを相互に抑制し合い、直線状態に伸長された進退駆動用チェーンの強固な噛み合いを達成するため、伸長されたアーム、ロッド、支柱などの長尺体としてのチェーン剛性と優れた耐久性を発揮することができ、また、直線状態に伸長する進退駆動用チェーンの溝状ガイドシャフト当接部内にガイドシャフトを挿通するように配置した場合、伸長された進退駆動用チェーンに対してガイドシャフト自体の伸長形態安定性と剛性を付加することができる。 そして、段差状係合部と溝状ガイドシャフト当接部を含めたチェーンブロックが合成樹脂で一体成形されていることにより、段差状係合部と溝状ガイドシャフト当接部とを含むチェーンブロック自体の造形とチェーンブロックの組み立てが簡便となり、進退駆動用チェーンの全体的な軽量化を達成することができる。
さらに、チェーンブロックの溝状ガイドシャフト当接部がガイドシャフトの多角形外周面に対応して相互に回り止めする多角形内周面を備えていることにより、伸長された進退駆動用チェーンが捩れることなく真っすぐに繰り出されるため、伸長した進退駆動用チェーンの先端位置を精度良く位置付けることができる。 The present invention relates to an advancing / retreating drive chain which is continuously and continuously retracted so as to be able to advance / retreat in cooperation with a drive means capable of forward / reverse rotation by connecting a plurality of chain blocks with connecting pins so that they can be bent with respect to each other. By having the configuration, the following specific effects are achieved.
That is, the advancing / retreating drive chain according to the first aspect includes a stepped engagement portion in which the chain blocks are opposed to each other so as to face each other and a groove extending through the stepped engagement portion in the chain longitudinal direction. When the pair of advancing / retreating drive chains are arranged opposite each other back to back, the stepped engagement portions of the advancing / retreating drive chains mesh with each other in the longitudinal direction of the chain. The length of the extended arms, rods, struts, etc., to restrain the relative movement and the movement in the direction perpendicular to the longitudinal direction of the chain and to achieve a strong engagement of the linear chain The chain rigidity and excellent durability as a scale can be demonstrated, and the guide shaft is in the grooved guide shaft abutting part of the chain for advancing and retreating that extends in a straight line. When placed so as to pass through the door, it can be added extending shape stability and rigidity of the guide shaft itself against extended forward and backward driving chain. The chain block including the stepped engagement portion and the grooved guide shaft contact portion is integrally formed of a synthetic resin so that the chain block includes the stepped engagement portion and the grooved guide shaft contact portion. As a result, the modeling and the assembly of the chain block can be simplified, and the overall weight reduction of the advancing / retreating drive chain can be achieved.
Furthermore, the grooved guide shaft abutting portion of the chain block has a polygonal inner peripheral surface that prevents the guide shaft from rotating against the polygonal outer peripheral surface of the guide shaft. Therefore, the extended position of the forward / backward drive chain can be accurately positioned.

そして、本請求項２に係る進退駆動用チェーンは、本請求項１に記載された発明が奏する効果に加えて、チェーンブロックがチェーン長手方向に相互隣接して縦横寸法の近似するブロック横断面を備えていることにより、伸長された進退駆動用チェーンのブロック側面方向における曲げ剛性を向上させるため、ブロック側面方向の耐座屈特性を発揮して安定したチェーン伸長姿勢を確保することができる。   The chain for advancing / retreating driving according to claim 2 has a block cross section in which the chain blocks are adjacent to each other in the longitudinal direction of the chain and have approximate vertical and horizontal dimensions, in addition to the effect of the invention described in claim 1. By providing, since the bending rigidity in the block side surface direction of the extended advance / retreat driving chain is improved, it is possible to exhibit a buckling resistance property in the block side surface direction and to ensure a stable chain extending posture.

また、本請求項３に係る進退駆動用チェーンは、本請求項１または本請求項２に記載された発明が奏する効果に加えて、チェーンブロックがブロック側面にチェーン長手方向に貫通して延びる溝状アタッチメント取付部を備えていることにより、ワーク支持部材、各種センサー支持部材などのアタッチメントが簡便に取り付け可能になるため、進退駆動用チェーンとしての汎用性を著しく拡大することができる。   Further, in the advance / retreat drive chain according to claim 3, in addition to the effect produced by the invention according to claim 1 or claim 2, the chain block has a groove extending through the side surface of the block in the longitudinal direction of the chain. Since the attachment such as the workpiece support member and various sensor support members can be easily attached by providing the shape attachment attachment portion, the versatility as the advancing / retreating drive chain can be remarkably increased.

また、本請求項４に係る進退駆動用チェーンは、請求項１乃至請求項３のいずれかに記載された発明が奏する効果に加えて、駆動手段が連結ピンを挿通する連結ボス部に噛み合うスプロケットであることにより、進退駆動用チェーンと正逆回転可能なスプロケットからなる駆動手段とが、所謂、チェーンとスプロケットによるピンギヤドライブ機構を構成してスプロケットとの協動により進退可能に順次連続して繰り出されるため、噛み外れ、歯飛びなどがなく円滑で安定した伸長動作と動力伝達動作を行うことができる。   Further, the advance / retreat drive chain according to claim 4 is a sprocket in which the drive means meshes with the connecting boss portion through which the connecting pin is inserted, in addition to the effect of the invention according to any one of claims 1 to 3. Therefore, the forward / backward drive chain and the drive means consisting of a sprocket capable of rotating in the forward and reverse directions constitute a so-called pin gear drive mechanism composed of a chain and a sprocket so that they can be moved forward and backward in cooperation with the sprocket. Since it is fed out, it is possible to perform a smooth and stable extension operation and power transmission operation without being disengaged and skipping teeth.

本発明の一実施例である進退駆動用チェーンを、図１乃至図７に基づいて説明する。
ここで、図１は、本発明の一実施例である進退駆動用チェーンの使用態様図であり、図２は、本発明で用いたチェーンブロックの拡大斜視図であり、図３は、図２のＡ方向からみたチェーンブロックの拡大斜視図であり、図４は、図２のＢ方向からみたチェーンブロックの拡大斜視図であり、図５は、本発明で用いた連結ピンの拡大斜視図であり、図６は、本発明の一実施例である進退駆動用チェーンの駆動態様図であり、図７は、本発明の一実施例である進退駆動用チェーンの他の駆動態様図である。 An advancing / retracting drive chain according to an embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a view showing how the chain for advancing / retreating driving is an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the chain block used in the present invention, and FIG. 4 is an enlarged perspective view of the chain block as viewed from the direction A, FIG. 4 is an enlarged perspective view of the chain block as viewed from the direction B of FIG. 2, and FIG. 5 is an enlarged perspective view of the connecting pin used in the present invention. FIG. 6 is a drive mode diagram of the advancing / retreating drive chain that is an embodiment of the present invention, and FIG. 7 is another driving mode diagram of the advancing / retreating drive chain that is an embodiment of the present invention.

まず、本発明の一実施例である進退駆動用チェーン１００を、図１に示す相互に背中合わせに左右一対で対向配置して上下方向に進退させるような使用態様に基づいて、以下に説明する。
本実施例の進退駆動用チェーン１００は、図２乃至図４に示すような合成樹脂製のチェーンブロック１１０を、図５に示すようなＤピンと称する抜け止め突起部１２１を備えた合成樹脂製の連結ピン１２０で相互に屈曲自在に多数連結して、図６に示すような正逆回転可能な一対のスプロケットＳＰ、ＳＰからなる駆動手段との協動により進退可能に順次連続して繰り出されるように構成されている。
すなわち、スプロケットＳＰからなる駆動手段が連結ピン１２０を挿通する連結ボス部１１１に噛み合うため、所謂、チェーンとスプロケットによるピンギヤドライブ機構を構成して噛み外れ、歯飛びなどがなく円滑で安定した伸長動作と動力伝達動作を行うように構成されている。 First, the advance / retreat driving chain 100 according to an embodiment of the present invention will be described below based on a usage mode shown in FIG.
The advancing / retracting drive chain 100 of this embodiment is made of a synthetic resin provided with a retaining protrusion 121 called a D pin as shown in FIG. 5, in which a synthetic resin chain block 110 as shown in FIGS. A plurality of connecting pins 120 are connected to each other so as to be freely bent, and are sequentially and continuously extended so as to be able to advance and retreat in cooperation with a driving means comprising a pair of sprockets SP and SP that can rotate forward and backward as shown in FIG. It is configured.
That is, since the driving means comprising the sprocket SP meshes with the connecting boss 111 through which the connecting pin 120 is inserted, a so-called pin gear drive mechanism composed of a chain and a sprocket is configured to disengage, and there is no skipping and smooth and stable extension. It is comprised so that operation and power transmission operation may be performed.

そして、図２乃至図４に示すようなチェーンブロック１１０は、図１に示すように一対の進退駆動用チェーン１００、１００を相互に背中合わせに対向配置させた場合、チェーン長手方向Ｚの相対的な動きとチェーン長手方向Ｚと直角方向Ｙの動きを相互に抑制し合い、直線状態に伸長された進退駆動用チェーン１００の強固な噛み合いを達成するための、相互に係合する段差状係合部１１２をブロック側面の両方にそれぞれ備えている。   The chain block 110 as shown in FIGS. 2 to 4 has a relative relationship in the longitudinal direction Z of the chain when the pair of advancing / retreating driving chains 100, 100 are arranged facing each other back to back as shown in FIG. Step engaging portions that engage with each other to achieve a firm engagement of the chain 100 for advancing and retreating that is extended in a straight line by mutually restraining movement and movement in the longitudinal direction Z of the chain and in the direction Y perpendicular to the chain 112 are provided on both sides of the block.

また、チェーンブロック１１０は、進退駆動用チェーン１００に対して伸長形態安定性と剛性を付加して誘導補助する六角柱状のガイドシャフトＧＳを挿通するための、チェーン長手方向Ｚに貫通して延びる溝状ガイドシャフト当接部１１３を備え、さらに、この溝状ガイドシャフト当接部１１３には、伸長された進退駆動用チェーン１００が捩れることなく真っすぐに繰り出されて、伸長した進退駆動用チェーン１００の先端位置を精度良く位置付けるための、ガイドシャフトＧＳの多角形外周面Ｇ１となる六角外周面に対応して相互に回り止めする多角形内周面が形成されている。
なお、本実施例では、六角柱状のガイドシャフトＧＳを挿通したが、伸長された進退駆動用チェーン１００が捩れる恐れがなく真っすぐに繰り出されるものであれば、如何なる多角形外周面を備えた多角柱状のガイドシャフトＧＳを挿通しても何ら差し支えない。 Further, the chain block 110 is a groove extending through the chain longitudinal direction Z for inserting a hexagonal columnar guide shaft GS for guiding and assisting by adding extension form stability and rigidity to the chain 100 for advancing and retracting. The guide shaft abutting portion 113 is further provided. Further, the grooved guide shaft abutting portion 113 is extended straightly without being twisted, and the stretched advance / retreat driving chain 100 is extended. In order to accurately position the tip end position of the guide shaft GS, a polygonal inner peripheral surface is formed to prevent rotation with respect to the hexagonal outer peripheral surface which is the polygonal outer peripheral surface G1 of the guide shaft GS.
In this embodiment, the hexagonal columnar guide shaft GS is inserted. However, any polygonal outer peripheral surface can be used as long as the extended advance / retreat drive chain 100 can be fed straight without fear of twisting. There is no problem even if the columnar guide shaft GS is inserted.

加えて、チェーンブロック１１０には、ワーク支持部材、各種センサー支持部材などのアタッチメントを取り付けるＴナット（図示しない）を簡便に挿入して進退駆動用チェーン１００の汎用性を拡大させるための、ブロック側面の両方にチェーン長手方向Ｚに貫通して延びる逆Ｔ字型溝、アリ溝などの溝断面形状を有する溝状アタッチメント取付部１１４が形成されている。   In addition, a side surface of the block for expanding versatility of the chain 100 for advancing / retreating by simply inserting a T-nut (not shown) to which attachments such as workpiece support members and various sensor support members are attached to the chain block 110. A groove-shaped attachment mounting portion 114 having a groove cross-sectional shape such as an inverted T-shaped groove and an ant groove extending in the chain longitudinal direction Z is formed on both of them.

さらに、チェーンブロック１１０は、前述したような連結ボス部１１１と段差状係合部１１２と溝状ガイドシャフト当接部１１３と溝状アタッチメント取付部１１４を含めたブロック全体がエンプラ樹脂と称する合成樹脂で一体成形され、連結ボス部１１１と段差状係合部１１２と溝状ガイドシャフト当接部１１３と溝状アタッチメント取付部１１４とを含むチェーンブロック自体の造形とチェーンブロック１１０の組み立てを簡便に達成するとともに、進退駆動用チェーン１００の全体的な軽量化を達成している。   Further, the chain block 110 is a synthetic resin in which the entire block including the connecting boss portion 111, the stepped engagement portion 112, the groove-shaped guide shaft contact portion 113, and the groove-shaped attachment mounting portion 114 is referred to as engineering plastic resin. The chain block itself including the connecting boss portion 111, the stepped engagement portion 112, the groove-shaped guide shaft contact portion 113, and the groove-shaped attachment mounting portion 114 can be easily formed and the chain block 110 can be assembled. In addition, the overall weight reduction of the advancing / retreating drive chain 100 is achieved.

そして、チェーンブロック１１０は、伸長された進退駆動用チェーン１００のブロック側面方向Ｘにおける曲げ剛性を向上させてブロック側面方向Ｘの耐座屈特性と安定したチェーン伸長姿勢を確保するための、チェーン長手方向Ｚに相互隣接して縦横寸法の近似するブロック横断面１１５を備えている。
すなわち、本実施例の場合には、前述した縦横寸法の寸法比を約１：１としている。 Then, the chain block 110 improves the bending rigidity in the block side surface direction X of the extended advancing / retracting drive chain 100 to ensure the buckling resistance in the block side surface direction X and a stable chain extension posture. Block cross sections 115 that are adjacent to each other in the direction Z and approximate vertical and horizontal dimensions are provided.
That is, in the case of the present embodiment, the dimensional ratio of the vertical and horizontal dimensions described above is about 1: 1.

なお、本実施例の進退駆動用チェーン１００は、図６に示すように正逆回転可能な一対のスプロケットＳＰ、ＳＰからなる駆動手段との協動により進退可能に順次連続して繰り出されるように構成したが、図７に示すように正逆回転可能なスプロケットＳＰからなる駆動手段とガイドローラＧＲからなる遊動手段との協動により進退可能に順次連続して繰り出されるように構成しても良い。   As shown in FIG. 6, the advancing / retreating drive chain 100 of this embodiment is successively and continuously extended so as to be able to advance and retreat in cooperation with a driving means comprising a pair of sprockets SP and SP that can rotate forward and backward. However, as shown in FIG. 7, it may be configured so that it can be successively and continuously extended so as to be able to advance and retreat by the cooperation of the driving means composed of a sprocket SP that can rotate forward and backward and the idle means composed of a guide roller GR. .

また、本実施例の進退駆動用チェーン１００は、図１に示す相互に背中合わせに左右一対で対向配置して上下方向に進退させるような使用態様のほかに、図示しないが、相互に背中合わせに左右一対で対向配置して水平方向などに進退させるような使用態様であっても十分に対応できることは言うまでもない。   Further, the advancing / retracting drive chain 100 according to the present embodiment is not shown in the drawing except for a usage mode in which a pair of left and right facing each other is opposed to each other and is moved up and down as shown in FIG. Needless to say, even a usage mode in which a pair is opposed to each other and advanced or retracted in a horizontal direction or the like can be sufficiently handled.

以上のように、本実施例の進退駆動用チェーン１００は、相互に背中合わせに対向配置して上下方向に進退動作させた場合、進退駆動用チェーン１００の段差状係合部１１２が相互に噛み合ってチェーン長手方向Ｚの相対的な動きとチェーン長手方向Ｚと直角方向Ｙの動きを相互に抑制し合い、直線状態に伸長された進退駆動用チェーン１００の強固な噛み合いを達成して伸長された長尺体としてのチェーン剛性と優れた耐久性を発揮でき、また、溝状ガイドシャフト当接部１１３内に六角柱状のガイドシャフトＧＳを挿通配置して伸長する進退駆動用チェーン１００に対してガイドシャフトＧＳ自体の伸長形態安定性と剛性を付加できるとともに捩れることなく真っすぐに繰り出した進退駆動用チェーン１００の先端位置が精度良く位置決めでき、さらに、チェーン長手方向Ｚに相互隣接して縦横寸法の近似するブロック横断面１１５がブロック側面方向Ｘにおける曲げ剛性を向上させて耐座屈特性を発揮して安定したチェーン伸長姿勢を確保できるなど、その効果は甚大である。   As described above, when the advancing / retreating drive chain 100 according to the present embodiment is arranged so as to face each other back to back and move up and down, the stepped engagement portions 112 of the advancing / retreating drive chain 100 mesh with each other. The relative movement in the longitudinal direction Z of the chain and the movement in the longitudinal direction Z and the perpendicular direction Y of the chain are mutually suppressed, and the extended length is achieved by achieving a strong engagement of the chain 100 for advancing and retreating extended in a linear state. The guide shaft can be used with respect to the chain 100 for advancing / retreating driving, which can exhibit chain rigidity and excellent durability as a scale, and is extended by inserting and arranging a hexagonal columnar guide shaft GS in the grooved guide shaft abutting portion 113. The stability and rigidity of the extended form of the GS itself can be added, and the position of the tip of the advance / retreat drive chain 100 that has been fed straight without twisting is accurately determined. In addition, the block cross-sections 115 that are adjacent to each other in the longitudinal direction Z of the chain and whose vertical and horizontal dimensions approximate to each other can improve the bending rigidity in the block side surface direction X, exhibit buckling resistance, and ensure a stable chain extending posture. The effect is enormous.

本発明の一実施例である進退駆動用チェーンの使用態様図。The use aspect figure of the chain for advancing / retreating which is one Example of this invention. 本発明で用いたチェーンブロックの拡大斜視図。The expansion perspective view of the chain block used by the present invention. 図２のＡ方向からみたチェーンブロックの拡大斜視図。The expansion perspective view of the chain block seen from the A direction of FIG. 図２のＢ方向からみたチェーンブロックの拡大斜視図。The expansion perspective view of the chain block seen from the B direction of FIG. 本発明で用いた連結ピンの拡大斜視図。The expansion perspective view of the connecting pin used by this invention. 本発明の一実施例である進退駆動用チェーンの駆動態様図。The drive aspect figure of the chain for advancing / retreating which is one Example of this invention. 本発明の一実施例である進退駆動用チェーンの他の駆動態様図。The other drive aspect figure of the chain for advancing / retreating which is one Example of this invention.

１００ ・・・進退駆動用チェーン
１１０ ・・・チェーンブロック
１１１ ・・・連結ボス部
１１２ ・・・段差状係合部
１１３ ・・・溝状ガイドシャフト当接部
１１４ ・・・溝状アタッチメント取付部
１１５ ・・・ブロック横断面
１２０ ・・・連結ピン
１２１ ・・・抜け止め突起部
ＧＳ ・・・ガイドシャフト
Ｇ１ ・・・多角形外周面
ＳＰ ・・・駆動スプロケット（駆動手段）
ＧＲ ・・・ガイドローラ（遊動手段）
Ｚ ・・・チェーン長手方向
Ｙ ・・・チェーン長手方向Ｚと直角方向
Ｘ ・・・ブロック側面方向
DESCRIPTION OF SYMBOLS 100 ... Chain for advancing / retreating 110 ... Chain block 111 ... Connection boss part 112 ... Step-like engagement part 113 ... Groove-shaped guide shaft contact part 114 ... Groove-shaped attachment attaching part 115: Block cross section 120: Connection pin 121: Retaining protrusion GS: Guide shaft G1: Polygonal outer peripheral surface SP: Drive sprocket (drive means)
GR: guide roller (moving means)
Z: Chain longitudinal direction Y: Chain perpendicular direction Z: X: Block side surface direction

Claims (4)

チェーンブロックを連結ピンで相互に屈曲自在に多数連結して正逆回転可能な駆動手段との協動により進退可能に順次連続して繰り出される進退駆動用チェーンにおいて、
前記チェーンブロックが、相互に背中合わせに対向配置して係合する段差状係合部と該段差状係合部をチェーン長手方向に貫通して延びる溝状ガイドシャフト当接部とを備えているとともに合成樹脂で一体成形され、
前記チェーンブロックの溝状ガイドシャフト当接部が、ガイドシャフトの多角形外周面に対応して相互に回り止めする多角形内周面を備えていることを特徴とする進退駆動用チェーン。 In the chain for advancing / retreating driving, the chain block is connected to a plurality of connecting pins so as to be able to bend with each other, and is driven forward and backward sequentially in cooperation with drive means capable of rotating forward and backward.
The chain block includes a stepped engagement portion that is disposed opposite to each other and engaged with each other and a grooved guide shaft contact portion that extends through the stepped engagement portion in the chain longitudinal direction. Molded integrally with synthetic resin,
An advancing / retreating drive chain characterized in that the groove-shaped guide shaft abutting portion of the chain block includes a polygonal inner peripheral surface that prevents rotation against each other in correspondence with the polygonal outer peripheral surface of the guide shaft. 前記チェーンブロックが、チェーン長手方向に相互隣接して縦横寸法の近似するブロック横断面を備えていることを特徴とする請求項１記載の進退駆動用チェーン。   2. The advancing / retreating drive chain according to claim 1, wherein the chain blocks have block cross sections that are adjacent to each other in the longitudinal direction of the chain and have approximate vertical and horizontal dimensions. 前記チェーンブロックが、ブロック側面にチェーン長手方向に貫通して延びる溝状アタッチメント取付部を備えていることを特徴とする請求項１または請求項２記載の進退駆動用チェーン。   3. The advancing / retreating drive chain according to claim 1 or 2, wherein the chain block includes a groove-shaped attachment mounting portion extending through the side surface of the block in the longitudinal direction of the chain. 前記駆動手段が、前記連結ピンを挿通する連結ボス部に噛み合うスプロケットであることを特徴とする請求項１乃至請求項３のいずれかに記載の進退駆動用チェーン。   The advancing / retreating drive chain according to any one of claims 1 to 3, wherein the driving means is a sprocket that meshes with a connecting boss portion through which the connecting pin is inserted.
JP2006025947A 2006-02-02 2006-02-02 Advance and retreat drive chain Expired - Fee Related JP4662858B2 (en)

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JP2012197128A (en) * 2011-03-18 2012-10-18 Tsubakimoto Chain Co Meshing chain type advance/retreat operating device
KR101597490B1 (en) * 2015-06-10 2016-02-24 이상용 Zipper-type chain units having a truss structure
JP7207494B2 (en) * 2020-11-30 2023-01-18 株式会社椿本チエイン Retractable drive chain and chain element
WO2022114015A1 (en) * 2020-11-30 2022-06-02 株式会社椿本チエイン Chain for advance/retreat drive and chain element
CN113682814B (en) * 2021-09-07 2024-07-19 上海原能细胞生物低温设备有限公司 Transmission chain
JP7506440B1 (en) 2023-06-02 2024-06-26 株式会社RoboSapiens Protruding Linear Actuator

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JP2005517880A (en) * 2002-02-21 2005-06-16 ベトソン サイモン Actuator

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JPS5851880B2 (en) * 1979-12-27 1983-11-18 和光精機株式会社 Jyatsuki
JP2005517880A (en) * 2002-02-21 2005-06-16 ベトソン サイモン Actuator

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