JP6696849B2

JP6696849B2 - Double row seal chain fitting device, fitting method, and double row seal chain

Info

Publication number: JP6696849B2
Application number: JP2016129942A
Authority: JP
Inventors: 山田　誠; 誠山田; 純馬場
Original assignee: Daido Kogyo Co Ltd
Current assignee: Daido Kogyo Co Ltd
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2020-05-20
Anticipated expiration: 2036-06-30
Also published as: KR102328500B1; KR20180003433A; JP2018003933A

Description

本発明は、幅方向複列にチェーンを並べかつピンとブシュとの間に潤滑油（グリース）を封入した複列シールチェーンに係り、詳しくはチェーンを無端状に連結する継手装置及び継手方法並びに複列シールチェーンに関する。 The present invention relates to a double-row seal chain in which chains are arranged in double rows in the width direction and lubricating oil (grease) is sealed between a pin and a bush, and more specifically, a joint device and a joint method for endlessly connecting the chains, and For row seal chains.

一般に、ローラチェーンは、有端状のチェーンをスプロケットに巻掛け、その両端部を継手装置で連結して無端状として用いられる。継手装置は、１対のピンを植設したピンプレート（足立プレート）を有し、内リンクからなるローラチェーンの両端部のブシュに、シールリングを介在しながら上記ピンプレートのピンを挿入し、更に該ピンを外プレートからなる継手プレートに挿入した後、突出したピンの溝にクリップを係合することによりローラチェーンが無端状に連結される（例えば特許文献１参照）。 In general, a roller chain is used as an endless chain by winding an endless chain around a sprocket and connecting both ends thereof with a joint device. The joint device has a pin plate (adachi plate) in which a pair of pins are planted, and the pins of the pin plate are inserted into the bushes at both ends of the roller chain composed of inner links while interposing seal rings, Further, after inserting the pin into a joint plate composed of an outer plate, a roller chain is connected endlessly by engaging a clip with a groove of the protruding pin (for example, refer to Patent Document 1).

従来、複列チェーン、例えば２列チェーンにあっても足の長いピンプレートを用いて、該長いピンに、シールリングを介在しながら一方の内リンクのブシュ、中間プレート、他方の内リンクのブシュそして継手プレートを挿入して、突出したピンの溝にクリップを係合して連結される。 Conventionally, even in a double row chain, for example, a double row chain, a long-legged pin plate is used, and a bushing of one inner link, an intermediate plate, and a bushing of the other inner link are provided while interposing a seal ring on the long pin. Then, the joint plate is inserted, and the clip is engaged with the groove of the protruding pin to be connected.

特開２０１５−５２３４０号公報JP, 2005-52340, A

シールチェーンにあっても、単列ローラチェーンは、継手プレートを押圧してシールリングを圧縮した状態でクリップを突出ピンの溝に係合することにより比較的容易にチェーンを継ぐことができる。 Even in the case of the seal chain, the single-row roller chain can be relatively easily spliced by engaging the clip with the groove of the protruding pin in a state where the joint plate is pressed to compress the seal ring.

しかし、複列チェーン、例えば２列ローラチェーンは、一方のチェーンの両端内リンクを直列状に揃えてピンプレートのピンにシールリングを被嵌した状態でそのブシュに上記ピンを挿通し、更に該ピンの先端部にシールリングを介在した状態で中間プレートを置く。そして、該中間プレートの他側面にシールリングを介在して、起立状態にある他方のチェーンの両端内リンクを、一方のチェーンの両端内リンクに幅方向に整列するように倒すが、この際上記シールリングが干渉して困難な作業となり、薄板からなるガイド板を用いてシールリングの捩れを防止する等の面倒で時間のかかる作業を強いられる。更に該他方のチェーンの内リンクが一方のチェーンの内リンクと整列した状態で、上記ピンプレートのピンを他方のチェーンの内リンクのブシュに挿入して、シールリングを介在した状態で外プレートである継手プレートを上記ピンに差込み、突出したピンの溝にクリップを係合することにより、２列ローラチェーンの継ぎが完了する。 However, in a double-row chain, for example, a double-row roller chain, the links at both ends of one chain are aligned in series, and the pins are inserted into the bushes with the seal ring fitted on the pins of the pin plate. Place the intermediate plate with the seal ring interposed at the tip of the pin. Then, with the seal ring interposed on the other side surface of the intermediate plate, the both-end inner links of the other chain in the upright state are tilted so as to be aligned in the width direction with the both-end inner links of the one chain. The seal ring interferes with each other, which makes the work difficult, and a troublesome and time-consuming work such as preventing twist of the seal ring by using a thin guide plate is forced. Further, with the inner link of the other chain aligned with the inner link of the one chain, the pin of the pin plate is inserted into the bush of the inner link of the other chain, and the outer plate is inserted with the seal ring interposed. Inserting a joint plate into the pin and engaging a clip in the groove of the protruding pin completes the splice of the two-row roller chain.

本発明は、上述した困難で面倒な作業を不要とし、もって上述した課題を解決した複列シールチェーンの継手装置、継手方法並びにそれを用いられる又は用いた複列シールチェーンを提供することを目的とするものである。 An object of the present invention is to provide a joint device for a double-row seal chain, a joint method, and a double-row seal chain using or using the same, which eliminates the above-mentioned difficult and troublesome work and thus solves the above-mentioned problems. It is what

本発明は、例えば図１を参照して、複列の内リンク（６）及び外リンク（１０）が、前記外リンクのピン（９）を前記内リンク（６）のブシュ（３）に嵌挿して交互に連結され、かつ前記ブシュ（３）を前記内リンク（６）の内プレート（２）から所定量突出して、該突出部（３ａ）を囲むように配置したシールリング（１２）を、前記内リンク（６）の前記内プレート（２）と前記外リンク（１０）の外プレート（７）又は中間プレート（１７）との間に挟持した複列シールチェーン（１）の継手装置（２０）において、
前記複列シールチェーン（１）の長手方向両端は、幅方向に隣接して配置される前記内リンク（６_１）の間に前記中間プレート（１７_１）が両端部に抜止め係合溝（２９ａ）を有するチェーン側の継手ピン（２９）により連結されて配置され、
前記長手方向両端の中間プレート（１７ _１）の先端側のピン孔にそれぞれ嵌挿される、両端部に抜止め用の係合溝（２９ａ）を有する継手側の継手ピン（２９）と、
前記継手側の継手ピンに嵌挿される継手側の内リンク（６２）と、
前記チェーン側の継手ピンと前記継手側の継手用の継手ピンとの間を連結する継手プレート（２７）と、
前記チェーン側及び継手側の継手ピン（２９）の前記係合溝（２９ａ）に係合して前記継手プレート（２７）を係止する抜止め部材（３０）と、を備え、
前記複列シールチェーン（１）の複列の数をｎとし、ｎ個の前記継手用の内リンク（２７）と、２本の両端部に抜止め係合溝（２９ａ）を有する前記継手側の継手ピン（２９）と、４ｎ＋４個の前記シールリング（１２）と、４枚の前記継手プレート（２７）と、前記継手プレートを前記チェーン側及び継手側の継手ピンに係止する４枚の前記抜止め部材（３０）と、を１組として備えてなる、
ことを特徴とする複列シールチェーンの継手装置（２０）にある。 In the present invention, for example, referring to FIG. 1, a double row inner link (6) and an outer link (10) fit a pin (9) of the outer link into a bush (3) of the inner link (6). A seal ring (12) that is inserted and alternately connected and that protrudes the bush (3) from the inner plate (2) of the inner link (6) by a predetermined amount and surrounds the protruding portion (3a). , A coupling device for a double row seal chain (1) sandwiched between the inner plate (2) of the inner link (6) and the outer plate (7) or the intermediate plate (17) of the outer link (10) ( In 20) ,
Longitudinally opposite ends, retaining engagement groove in said intermediate plate (17 ₁₎ of both end portions between said links is positioned adjacent to the width direction ₍₆₁₎ of the double row sealing chain (1) ( 29a) is connected and arranged by a chain side joint pin (29),
Said longitudinal end intermediate plate (17 ₁₎ of the inserted respectively into the pin hole of the distal end side of the joint side of the joint pin (29) having a engagement groove for retaining (29a) at both ends,
An inner link (62) on the joint side fitted and inserted into the joint pin on the joint side,
A joint plate (27) connecting between the joint pin on the chain side and the joint pin for the joint on the joint side;
A retaining member (30) for engaging the engagement groove (29a) of the chain-side and joint-side joint pin (29) to lock the joint plate (27),
Wherein the number of double rows of double row sealing chain (1) is n, and n-number of the inner link for the joint (27), the joint side having a retaining engagement groove at both ends of the two (29a) a joint pin (29), and 4n + 4 pieces of the sealing ring (12), four of the four of the joint plate (27), to lock the front Symbol joint plate joint pins of the chain side and the joint side And the retaining member (30) of No. 1 as one set,
A joint device (20) for a double-row seal chain, which is characterized in that

好ましくは、前記複列シールチェーンは、２列シールチェーン（１）であり、前記ｎは、２であり、
前記抜止め部材は、隣接する２本の前記継手ピン（２９，２９）の前記係合溝（２９ａ，２９ａ）に亘って係合し、それぞれ１枚の前記継手プレート（２７）を係止するクリップ（３０）である。 Preferably, the double row seal chain is a double row seal chain (1), and n is 2,
It said retaining member, said engaging groove (29a, 29a) of the joint pin of two adjacent (29, 29) engages over it respectively engages the one of the joint plate (27) It is a clip (30) to stop.

複列の内リンク（６）及び外リンク（１０）が、前記外リンク（１０）のピン（９）を前記内リンク（６）のブシュ（３）に嵌挿して交互に連結され、かつ前記ブシュ（３）を前記内リンク（６）の内プレート（２）から所定量突出して、該突出部（３ａ）を囲むように配置したシールリング（１２）を、前記内リンク（６）の前記内プレート（２）と前記外リンク（１０）の外プレート（７）又は中間プレート（１７）との間に挟持した複列シールチェーン（１）の継手方法において、
前記複列シールチェーン（１）の長手方向両端は、幅方向に隣接して配置される前記内リンク（６_１，６_１）の間に前記中間プレート（１７_１）が両端部に抜止め係合部（２９ａ）を有するチェーン側の継手ピン（２９）により連結されて配置され（例えば図２参照）、
前記複列シールチェーン（１_１）の長手方向両端に位置する前記中間プレート（１７_１，１７_１）に、両端部に抜止め係合部（２９ａ，２９ａ）を有する継手側の継手ピン（２９）を挿入する工程と（例えば図３参照）、
該挿入された１対の継手側の継手ピン（２９，２９）にその両端側から前記シールリング（１２，１２）を挿入する工程（例えば図４参照）と、
前記１対の継手側の継手ピン（２９，２９）に、その両端側から継手用の内リンク（６_２，６_２）を挿入して、該継手用の内リンクの前記ブシュの突出部（３ａ）と前記中間プレート（１７_１）との間に前記シールリング（１２，１２）を挟む工程と（例えば図５参照）、
前記継手用の内リンクを挿入した前記１対の継手側の継手ピン（２９，２９）に、その両端側から前記シールリング（１２，１２）を挿入する工程と（例えば図６参照）、
前記１対の継手側の継手ピン（２９，２９）と該継手ピンに隣接する前記複列シールチェーン（１）の端に配置された前記チェーン側の継手ピン（２９，２９）とに亘って継手プレート（２７，２７）を嵌挿して、幅方向両端部の該継手プレート（２７）を幅方向内側に押圧した状態で、抜止め部材（３０）を前記チェーン側及び継手側の継手ピン（２９，２９）の抜止め係合部（２９ａ，２９ａ）に係合して前記継手プレート（２７）を係止する工程と（例えば図７参照）、
を備えてなる複列シールチェーンの継手方法にある。 The double row inner link (6) and outer link (10) are alternately connected by inserting the pin (9) of the outer link (10) into the bush (3) of the inner link (6), and The bush (3) is projected from the inner plate (2) of the inner link (6) by a predetermined amount, and a seal ring (12) arranged so as to surround the projecting portion (3a) is attached to the inner link (6). A joint method for a double row seal chain (1) sandwiched between an inner plate (2) and an outer plate (7) or an intermediate plate (17) of the outer link (10),
At both ends in the longitudinal direction of the double-row seal chain (1), the intermediate plates (17 ₁ ) are retained at both ends between the inner links (6 ₁ , 6 ₁ ) arranged adjacent to each other in the width direction. Arranged by being connected by a chain side joint pin (29) having a joint portion (29a) (see, for example, FIG. 2),
Joint pins on the joint side (29) having retaining engagement portions (29a, 29a) at both ends of the intermediate plate (17 ₁ , 17 ₁ ) located at both ends in the longitudinal direction of the double-row seal chain (1 ₁ ). ) Insertion step (see FIG. 3, for example),
A step of inserting the seal rings (12, 12) into the inserted pair of joint pins (29, 29) on the joint side from both ends thereof (see, for example, FIG. 4),
Wherein the pair of coupling-side joint pins (29, 29), by inserting the inner link (6 _{2, 6} ₂₎ for fitting the both ends thereof, the projecting portion of the bushing of the inner link for the joint ( 3a) and a step of sandwiching the sealing ring (12, 12) between said intermediate plate (17 ₁₎ (e.g., see FIG. 5),
A step of inserting the seal rings (12, 12) into the pair of joint pins (29, 29) on the joint side into which the inner links for joints are inserted (see, for example, FIG. 6),
Spanning the pair of joint-side joint pins (29, 29) and the chain-side joint pins (29, 29) arranged at the ends of the double-row seal chain (1) adjacent to the joint pins With the joint plates (27, 27) fitted and the joint plates (27) at both ends in the width direction being pressed inward in the width direction, the retaining member (30) is attached to the chain-side and joint-side joint pins (30). 29, 29) engaging the retaining engagement portions (29a, 29a) of the retaining plate to lock the joint plate (27) (see, for example, FIG. 7),
A method of coupling a double-row seal chain comprising:

例えば図１（ａ）を参照して、１対の内プレート（２，２）の両端部をブシュ（３，３）で結合した内リンク（６）を幅方向複数個配列した内リンク列（Ｒ１）と、幅方向外側の外プレート（７，７）の両端部をピン（９，９）で連結すると共に該ピンに遊合した中間プレート（１７）を有する外リンク列（Ｒ２）とを、隣接する前記内リンク（６，６）の間に前記中間プレート（１７）を挟んで前記ブシュ（３）に前記ピン（６）を嵌挿して交互に連結し、かつ前記ブシュ（３）を前記内プレート（２）から所定量突出し、該突出部（６ａ）を囲むようにして前記内プレート（２）と前記外プレート（７）又は中間プレート（１７）との間にシールリング（１２）を介在して、前記ブシュ（３）と前記ピン（９）との間の軸受部（１３）に潤滑油を保持した複列シールチェーン（１）において、
長手方向両端に、両端部に抜止め係合部（２９ａ）を有する継手ピン（２９）を介して前記内リンク列（６_１，６_１）に連結された中間プレート（１７_１，１７_１）が配置されてなる、前記継手装置又は前記継手方法で継ぐことが可能な複列シールチェーン（１）にある。 For example, referring to FIG. 1A, an inner link row (a plurality of inner links (6) in which both ends of a pair of inner plates (2, 2) are connected by bushes (3, 3) are arranged in the width direction ( R1) and an outer link row (R2) which has both ends of the outer plates (7, 7) on the outer side in the width direction connected with pins (9, 9) and which has an intermediate plate (17) loosely fitted to the pins. , The intermediate plate (17) is sandwiched between the adjacent inner links (6, 6), the pins (6) are fitted and inserted into the bushes (3), and the bushes (3) are alternately connected. A seal ring (12) is interposed between the inner plate (2) and the outer plate (7) or the intermediate plate (17) so as to surround the protruding portion (6a) by a predetermined amount protruding from the inner plate (2). Then, in the double row seal chain (1) in which the lubricating oil is held in the bearing portion (13) between the bush (3) and the pin (9),
Intermediate plates (17 ₁ , 17 ₁ ) connected to the inner link row (6 ₁ , 6 ₁ ) via joint pins (29) having retaining engagement portions (29 a) at both ends in the longitudinal direction. In a double-row seal chain (1) that can be spliced with the coupling device or the coupling method.

例えば図７を参照して、１対の内プレート（２，２）の両端部をブシュ（３，３）で結合した内リンク（６）を幅方向複数個配列した内リンク列（Ｒ１）と、幅方向外側の外プレート（７，７）の両端部をピン（９，９）で連結すると共に該ピンに遊合した中間プレート（１７）を有する外リンク列（Ｒ２）とを、隣接する前記内リンク（６，６）の間に前記中間プレート（１７）を挟んで前記ブシュ（３）に前記ピン（９）を嵌挿して交互に連結し、かつ前記ブシュ（３）を前記内プレート（２）から所定量突出し、該突出部（３ａ）を囲むようにして前記内プレート（２）と前記外プレート（７）又は中間プレート（１７）との間にシールリング（１２）を介在して、前記ブシュ（３）と前記ピン（９）との間の軸受部（１３）に潤滑油を保持した複列シールチェーン（１）において、
両端部に抜止め係合部（２９ａ，２９ａ）を有する継手ピン（２９）が、前記ピン（９）に代って４本連続して配置され、隣接する前記継手ピン（２９，２９）の両端部に前記外プレート（７）に代って継手プレート（２７）が連結され、かつ前記継手ピン（２９）の前記抜止め係合部（２９ａ）に抜止め部材（３０）が係合して前記継手プレート（２７）が前記継手ピン（２９）に係止されてなる、前記継手装置又は前記継手方法で継がれた無端状の複列シールチェーン（１_１）にある。 For example, referring to FIG. 7, an inner link row (R1) in which a plurality of inner links (6) in which both ends of a pair of inner plates (2, 2) are connected by bushes (3, 3) are arranged in the width direction is formed. , Both ends of the outer plate (7, 7) on the outer side in the width direction are connected to each other by a pin (9, 9) and an outer link row (R2) having an intermediate plate (17) loosely fitted to the pin is adjacent to The intermediate plate (17) is sandwiched between the inner links (6, 6), the pins (9) are fitted and inserted into the bushes (3) and alternately connected, and the bushes (3) are connected to the inner plates (6). A predetermined amount is projected from (2), and a seal ring (12) is interposed between the inner plate (2) and the outer plate (7) or the intermediate plate (17) so as to surround the protruding portion (3a), In a double row seal chain (1) in which a lubricating oil is retained in a bearing portion (13) between the bush (3) and the pin (9),
Four joint pins (29) having retaining engagement portions (29a, 29a) at both ends are arranged in succession in place of the pin (9), and the adjacent joint pins (29, 29) are A joint plate (27) is connected to both ends instead of the outer plate (7), and a retaining member (30) engages with the retaining engagement portion (29a) of the joint pin (29). The joint plate (27) is locked to the joint pin (29), and the endless double-row seal chain (1 ₁ ) is joined by the joint device or the joint method.

なお、前記カッコ内の符号は、図面と対照するためのものであるが、これにより特許請求の範囲の構成に何等影響を及ぼすものではない。 The reference numerals in the parentheses are for the purpose of contrasting with the drawings, but they do not have any influence on the structure of the claims.

本発明に係る継手装置は、継手リンク等の特別な部品を必要としない簡単な構成でもって、両端に中間プレートが継手ピンを介して内リンクに連結される複列シールチェーンを、内リンクの間にシールリングを介在して中間プレートを挿入する困難で面倒な作業を必要としないで、容易に無端状に継ぐことができる。 The joint device according to the present invention has a simple structure that does not require special parts such as a joint link, and has a double row seal chain in which an intermediate plate is connected to the inner link via joint pins at both ends of the inner link. It is possible to easily endlessly join the intermediate plate without a difficult and troublesome work of inserting the intermediate plate with the seal ring interposed therebetween.

本発明に係る継手方法は、継手ピンの両端からシールリング、内リンク、シールリング、継手プレートを順次挿入して、抜止め部材により抜止め・係止する簡単な作業により、有端複列シールチェーンを無端状に容易に継ぐことができる。 The joint method according to the present invention is a double-ended end seal with a simple operation in which the seal ring, the inner link, the seal ring, and the joint plate are sequentially inserted from both ends of the joint pin, and the retainer member retains and locks. The chain can be easily joined endlessly.

３列以上の複列シールチェーンでは、２個の中間プレートの間に、シールリングを介在して内リンクを挿入する面倒な作業を必要とするが、２列複列チェーンにあっては、継手ピンの両端が各部品を順次挿入するだけの簡単な作業で足りる。なお、３列以上の複列チェーンでも、中間プレートは、継手ピンに遊合関係にあり、かつ板厚（幅方向長さ）も内リンクに比較して薄いので、中間プレートの間隔を拡げて比較的容易に内リンク及びシールリングを挿入することができる。 In a double-row seal chain of three rows or more, a troublesome work of inserting an inner link with a seal ring interposed between two intermediate plates is required. Both ends of the pin need only be a simple operation of inserting each part in sequence. Even in a multi-row chain of three rows or more, the intermediate plate has a loose relationship with the joint pin and the plate thickness (length in the width direction) is smaller than that of the inner link. The inner link and the seal ring can be inserted relatively easily.

長手方向両端が、継手ピンを介して内リンクに連結されている中間プレートからなると、複列シールチェーンでありながら、容易に無端状に継ぐことができる。 If both ends in the longitudinal direction are formed of the intermediate plates connected to the inner links via the joint pins, the double-row seal chain can be easily endlessly spliced.

本継手装置又は本継手方法により継がれた無端状の複列シールチェーンは、一部に継手ピンが４本連続して配置され、かつ該４本の継手ピンは、その両外側が２枚の継手プレートにより継がれるが、複列チェーンに基づく大きな伝達能力及び引張り強さを有し、かつシールチェーンに基づく耐摩耗性能（チェーン寿命）を有する。 The endless double-row seal chain joined by the present joint device or the present joint method has four joint pins continuously arranged in a part, and the four joint pins have two outsides on both sides. Although connected by a joint plate, it has a large transmission capacity and tensile strength based on a double-row chain, and has wear resistance performance (chain life) based on a seal chain.

（ａ）は本発明に係る継手装置により継がれるシールチェーンを示す一部断面した平面図。（ｂ）は上記継手装置を構成する部品を示す図。FIG. 3A is a partially sectional plan view showing a seal chain joined by a joint device according to the present invention. (B) is a figure which shows the components which comprise the said joint apparatus. 継手装置により継がれる状態の複列シールチェーンを示す平面図。The top view which shows the double-row seal chain in the state connected by the coupling device. 継手装置により継がれる状態を示す平面図。The top view which shows the state which is spliced by a joint device. 継手装置により継がれる状態を示す平面図。The top view which shows the state which is spliced by a joint device. 継手装置により継がれる状態を示す平面図。The top view which shows the state which is spliced by a joint device. 継手装置により継がれる状態を示す平面図。The top view which shows the state which is spliced by a joint device. 継手装置により継がれた状態の複列シールチェーンを示す平面図。The top view which shows the double-row seal chain in the state connected by the coupling device.

以下、図面に沿って本発明の実施の形態について説明する。本実施の形態による２列（複列）シールチェーン１は、動力伝達用又は搬送用として用いられ、図１（ａ）に示すように、第１列のチェーン１ａ及び第２列のチェーン１ｂを共通するピンにより横方向に連結されて構成される。単列シールチェーンからなる各列のチェーン１ａ，１ｂは、それぞれ１対の内プレート２，２の両端をブシュ３，３で結合しかつ該ブシュ３にローラを回転自在に被嵌した内リンク６と、１対の外プレート７，７の両端部にピン９，９を連結した外リンク１０とを、ブシュ３にピン９を嵌挿して交互に連結して構成される。 Embodiments of the present invention will be described below with reference to the drawings. The two-row (double-row) seal chain 1 according to the present embodiment is used for power transmission or transportation. As shown in FIG. 1A, the first-row chain 1a and the second-row chain 1b are connected to each other. It is configured to be laterally connected by a common pin. Each chain 1a, 1b of a single-row seal chain has an inner link 6 in which both ends of a pair of inner plates 2, 2 are connected by bushes 3, 3 and a roller is rotatably fitted on the bush 3. And a pair of outer plates 7, 7 and an outer link 10 in which pins 9 are connected to both ends of the outer plate 7, and the pins 9 are inserted into the bush 3 and alternately connected.

前記ピン９は、第１及び第２列のチェーン１ａ，１ｂに共通に嵌挿する長いピンが用いられ、かつ両チェーンの間に位置する外プレートは、外側の１対の外プレート７により厚くかつその２枚の厚さより薄いか又は等しい板厚からなる中間プレート１７からなる。両チェーン１ａ，１ｂの外側の外プレート７，７は、そのピン孔にピン９が圧入又はカシメ、いわゆる締り嵌め（嵌合）により固定されており、中間プレート１７のピン孔１７ａは、ピン径より大きく設定され、ピン９に対して遊合関係にある。即ち、２列シールチェーン１は、内リンク６が幅方向に複列（２列）配置された内リンク（ローラリンク）列Ｒ１と、外プレート７，７に固定されたピン９に中間プレート１７が遊合する外リンク列Ｒ２とからなり、中間プレート１７が幅方向に隣接する内リンク６，６の間に挟まれて、ブシュ３にピン９を嵌挿して上記内リンク列Ｒ１と外リンク列Ｒ２とが交互に連結されて構成される。 The pins 9 are long pins that are commonly inserted into the first and second rows of chains 1a and 1b, and the outer plate located between the chains is thicker than the outer pair of outer plates 7. And an intermediate plate 17 having a plate thickness smaller than or equal to the two thicknesses. The outer plates 7, 7 of the outer chains 1a, 1b have pins 9 fixed to the pin holes by press fitting or crimping, so-called interference fitting (fitting), and the pin holes 17a of the intermediate plate 17 have a pin diameter of It is set larger and has a loose relationship with pin 9. That is, the two-row seal chain 1 includes an inner link (roller link) row R1 in which the inner links 6 are arranged in a plurality of rows (two rows) in the width direction, a pin 9 fixed to the outer plates 7, 7 and an intermediate plate 17. Of the inner link row R1 and the outer link R2. The columns R2 are alternately connected.

前記内リンク６は、ブシュ３が両内プレート２，２の外側面より所定量突出して結合されており、該ブシュ突出部３ａを囲むようにシールリング１２が配置される。該シールリング１２は、内プレート２と外プレート７又は中間プレート１７との間に所定圧縮状態で挟持され、ピン９とブシュ３との間の軸受部１３に塗布されたグリース（潤滑油）を保持する。 The inner link 6 is connected with the bush 3 protruding from the outer surfaces of the inner plates 2 and 2 by a predetermined amount, and the seal ring 12 is arranged so as to surround the bush protruding portion 3a. The seal ring 12 is sandwiched between the inner plate 2 and the outer plate 7 or the intermediate plate 17 in a predetermined compression state, and the grease (lubrication oil) applied to the bearing portion 13 between the pin 9 and the bush 3 is applied to the seal ring 12. Hold.

前記２列シールチェーン１は、図１（ａ）に示すように、１本の有端状からなり、該無端状に継がれていない状態では、両端部が内リンク６_１，６_１、そして中間プレート１７_１からなる。チェーン両端部の内リンク６_１，６_１は、一方側はピン９がカシメられることにより隣接する外リンク１０に連結しているが、他方（先端）側は後述する継手ピン２９が挿入されており、該継手ピン２９に中間プレート１７_１が連結されている。 As shown in FIG. 1 (a), the two-row seal chain 1 has one end shape, and in a state where the end seals are not joined, both ends are inner links 6 ₁ , 6 ₁ , and It consists of an intermediate plate 17 ₁ . Inner link 6 _1, 6 ₁ of the chain end portions, on the other hand although the side is connected to the outer link 10 adjacent by the pin 9 is caulked, and the other (distal) side is inserted joint pin 29 to be described later cage, the intermediate plate 17 ₁ is connected to該継hand pin 29.

これら両端の中間プレート１７_１，１７_１は、他の中間プレート１７と同様に、２列の単列チェーン１ａ，１ｂを組立てる際に同時に組付けられるので、シールリング１２が介在しても容易に組付けられる。なお、該内リンク６_１の先端側継手ピン２９は、非使用状態にあっては、軸受部１３に塗布されたグリース等により抜落ちることはないが、仮止め治具等により内リンク６_１に係止して仮止めしておいてもよい。 Since the intermediate plates 17 ₁ and 17 _{1 at} both ends are assembled at the same time when assembling the two single-row chains 1 a and 1 b like the other intermediate plates 17, even if the seal ring 12 is interposed, the intermediate plates 17 ₁ and 17 ₁ can be easily assembled. It is assembled. Incidentally, the distal end side joint pin 29 of the inner link ₆₁ is, in the unused state, but will not fall disconnect by the bearing portion 13 grease applied to the inner link ₆₁ by temporarily fixing jig It may be locked to and temporarily fixed.

継手装置２０は、図１（ｂ）に示すように、２個の内リンク６_２、２本の継手ピン２９、４枚の継手プレート２７、１２個のシールリング１２、４個のクリップ３０、その他グリースを詰めた袋からなり、これら部品が１組にまとめられて袋又は箱に収められている。 Coupling device 20, as shown in FIG. 1 (b), 2 pieces of inner links ₆ 2, two joint pins 29,4 single joint plates 27,12 or seal rings 12,4 amino clips 30, In addition, it consists of a bag filled with grease, and these parts are put together in a set and stored in a bag or box.

内リンク６_２は、前記シールチェーン１に用いられる内リンク６と同じものが用いられる。即ち、ローラ５を遊嵌状態で支持したブシュが１対の内リンク２，２に結合されて構成される。継手ピン２９は、前記シールチェーン１に用いられるピン９と同じ径からなるが、該ピン９より若干長く構成され、かつ両端部に係合溝（抜止め用係合部）２９ａ，２９ａ及びその先端側にテーパ部２９ｂ，２９ｂが形成されている。継手プレート２７は、前記シールチェーン１の外プレート７と同じ外郭形状からなり、かつピン孔２７ａ，２７ａが僅かに大きな径からなる。即ち、外プレート７は、そのピン孔がピン９に対して締り嵌め（嵌合）となるようにピン径より僅かに小さくなっているが、継手プレート２７のピン孔２７ａは、継手ピン２９に対して遊合関係となるようにピン径より僅かに大きい。なお、最大許容張力を確保するために、継手プレート２７を上記外プレート７と同じものを用いてもよい。この場合、継手プレート２７は、継手ピン２９に圧入して取付けられる。 Inner link 6 ₂ are the same ones used with the inner link 6 for use in the seal chain 1. That is, a bush that supports the roller 5 in a loosely fitted state is connected to the pair of inner links 2 and 2. The joint pin 29 has the same diameter as the pin 9 used in the seal chain 1, but is configured to be slightly longer than the pin 9, and has engagement grooves (retaining engagement portions) 29a, 29a at both ends thereof. Tapered portions 29b, 29b are formed on the tip side. The joint plate 27 has the same outer shape as the outer plate 7 of the seal chain 1, and the pin holes 27a, 27a have a slightly larger diameter. That is, the outer plate 7 is slightly smaller than the pin diameter so that the pin hole of the outer plate 7 becomes an interference fit (fitting) with the pin 9, but the pin hole 27a of the joint plate 27 is formed in the joint pin 29. It is slightly larger than the pin diameter so that it has a loose relationship. The joint plate 27 may be the same as the outer plate 7 in order to secure the maximum allowable tension. In this case, the joint plate 27 is press-fitted and attached to the joint pin 29.

シールリング１２は、前記シールチェーン１のシールと同じものが用いられ、断面形状が円形のもの、リップを有するもの等どのような形状でも適用可能であるが、特に、特許第４７５６５３７号公報、特許第５４１５３１６号公報に示されるものが好適である。 As the seal ring 12, the same seal as the seal of the seal chain 1 is used, and any shape such as one having a circular cross-sectional shape and one having a lip can be applied, but in particular, Japanese Patent No. 4756537, Patent The one disclosed in Japanese Patent No. 5415316 is suitable.

クリップ３０は、弾性する鋼板からなり、１対の係合部３１，３２を有し、一方の係合部３１は、先拡がりとなっている長孔３３の端に形成され、他方の係合部３２は、外郭に向って拡がっている導入部３５と繋がっている。上記長孔３３及び導入部３５は、表面に向ってテーパ３３ａ，３５ａが形成されている。該クリップ３０は、上記形状（Ｍクリップ）に限らず、どのようなクリップでも適用可能であり、更に割ピン、スプリングピン等のクリップ以外の抜止め部材でも適用可能である。 The clip 30 is made of an elastic steel plate and has a pair of engaging portions 31 and 32. One engaging portion 31 is formed at the end of the elongated hole 33 that is divergent and the other engaging portion is formed. The part 32 is connected to the introduction part 35 that extends toward the outer shell. The elongated hole 33 and the introduction portion 35 are formed with tapers 33a and 35a toward the surface. The clip 30 is not limited to the above-described shape (M clip), and any clip can be applied, and a retaining member other than the clip such as a split pin or a spring pin can also be applied.

ついで、図２〜図７に沿って、上記継手装置２０を用いた前記２列シールチェーン１の継手方法について説明する。２列シールチェーン１は、図２に示すように、その両端に位置する中間プレート１７_１，１７_１が対向するように置かれる。そして、図３に示すように、継手装置２０の継手ピン２９を、チェーン両端の各中間プレート１７_１，１７_１の先端側ピン孔に挿入する。なお、該中間プレート１７_１，１７_１の他方のピン孔には同じ抜止め係合部を有する継手ピン２９，２９により２列の内リンク６_１，６_１が連結されている。 Next, a joint method of the two-row seal chain 1 using the joint device 20 will be described with reference to FIGS. 2 to 7. As shown in FIG. 2, the two-row seal chain 1 is placed so that the intermediate plates 17 ₁ and 17 ₁ located at both ends thereof face each other. Then, as shown in FIG. 3, the joint pin 29 of the joint device 20 is inserted into the tip side pin holes of the intermediate plates 17 ₁ and 17 ₁ at both ends of the chain. Two rows of inner links 6 ₁ , 6 ₁ are connected to the other pin holes of the intermediate plates 17 ₁ , 17 ₁ by joint pins 29, 29 having the same retaining engagement portion.

ついで、図４に示すように、上記中間プレート１７_１，１７_１に挿入した継手ピン２９，２９のその両端側からそれぞれシールリング１２…（合計４個）を挿入して中間プレート１７_１の両面に密接する。そして、図５に示すように、各継手ピン２９，２９に満遍なくグリースを塗布した状態で、これら２本の継手ピン２９，２９にそれぞれ両端側から内リンク６_２，６_２が挿入され、これら内リンク６_２のブシュ突出部３ａ先端が上記シールリング１２，１２に当接して、これらシールリング１２は、内リンク６_２のブシュ突出部３ａ及び中間プレート１７_１の間に挟まれる。ついで、図６に示すように、継手部分に連なる４本の継手ピン２９…にそれぞれ端側からシールリング１２…（合計８個）を挿入して、各シールリング１２は、内リンク６_２のブシュ突出部３ａに当接する。 Then, as shown in FIG. 4, the intermediate plate ₁₇ 1, 17 inserted respectively seal ring from its both end sides of the joint pin 29, 29 12 ... (four in total) the inserted side of the intermediate plate 17 ₁ to ₁ Close to. Then, as shown in FIG. 5, in a state of uniformly grease was applied to the joint pin 29, these two inner link away from both side to the joint pin 29 6 _2, 6 ₂ are inserted, these bush protruding portions 3a distal end of the link _{6 2} is brought into contact with the seal ring 12 and 12, these seal rings 12 are sandwiched between the inner links _{6 2} bush protruding portion 3a and the intermediate plate 17 _1. Then, as shown in FIG. 6, from each end side four joint pins 29 ... in connecting to the joint portion by inserting the seal ring 12 ... (the total of eight), the seal ring 12, the inner link 6 ₂ It contacts the bush protrusion 3a.

図７に示すように、両外側の外プレートである４枚の継手プレート２７…を、連続する継手部分の４本の継手ピン２９…の１対にその両端から嵌挿する。そして、締め付け治具を用いて、両側から継手プレート２７，２７を押え付けた状態で、各継手プレート２７の外側で、各クリップ３０を隣接する２本の継手ピン２９の係合溝２９ａに係合する。この際、クリップ３０にテーパ３５ａ，３３ａがあると、該クリップ３０の係合部３２，３１を係合溝２９ａに係合する際、該クリップ３０にシールリング１２を押し付ける方向の力が作用してクリップの装着が容易となる。該クリップ３０の装着に際しての上記継手プレート２７のチェーン幅方向内側に向けての動きにより、各シールリング１２は、ブシュ３の突出部３ａの外周を囲むように捻転して、内プレート２と継手プレート２７又は中間プレート１７_１との間に圧縮されて、軸受部１３のグリース（潤滑油）をシールする。 As shown in FIG. 7, four joint plates 27, which are outer plates on both outer sides, are fitted into a pair of four joint pins 29, which are continuous joint portions, from both ends thereof. Then, while holding the joint plates 27, 27 from both sides using a tightening jig, engage each clip 30 with the engaging groove 29a of the two adjacent joint pins 29 outside each joint plate 27. To meet. At this time, if the clip 30 has the tapers 35a and 33a, when the engaging portions 32 and 31 of the clip 30 are engaged with the engaging groove 29a, a force in the direction of pressing the seal ring 12 against the clip 30 acts. The clip can be easily attached. By the movement of the joint plate 27 toward the inner side in the chain width direction when the clip 30 is mounted, each seal ring 12 is twisted so as to surround the outer periphery of the protruding portion 3a of the bush 3 and is jointed with the inner plate 2. plate 27 or is compressed between the intermediate plate 17 _1, to seal the grease of the bearing portion 13 (lubricating oil).

これにより、両端に中間プレート１７_１，１７_１が組付けられた有端２列シールチェーン１は、継手装置２０を用いてその両端部が継がれて、無端２列シールチェーン１_１となる。この際、上記有端の２列シールチェーン１_１には、その両端部が中間プレート１７_１，１７_１からなり、これら該中間プレートの先端側のピン孔に継手ピン２９を挿入し、これら継手ピン２９に、その両端からシールリング１２、内リンク６_２、シールリング１２、継手プレート２７を順次挿入してクリップ３０を長手方向に隣接する１対の継手ピン２９に係止することにより、容易に無端状に継ぐことができる。 Thereby, the intermediate plate 17 _1, 17 ₁ having ends two rows seal chain 1 assembled at both ends, and both ends are spliced by using the coupling device 20, the endless two rows seal chain 1 _1. At this time, the second column the seal chain 1 ₁ of the chromatic edge is made both ends thereof from the intermediate plate 17 _1, 17 _1, and inserting the joint pin 29 to the distal end side pin holes of these intermediate plates, these joints the pin 29, by engaging the both ends sealing rings 12, inner link 6 _2, seal ring 12, the joint pin 29 of a pair of sequentially inserting the fitting plate 27 adjacent the clip 30 in the longitudinal direction, easily It can be endlessly spliced.

なお、複列シールチェーンが３列以上の場合、２個の中間プレートの間に、シールリングを介在して内リンクを挿入する必要があるが、中間プレートは、継手ピンに遊合関係にあり、かつ幅方向間隔である板厚は、内リンクの幅方向間隔より大幅に薄く、従来のようにチェーン両端の内リンクを拡げることに比して、容易に幅方向に拡げることができ、その間に内リンクをシールリングを介在して挿入することができる。 If the double-row seal chain has three or more rows, it is necessary to insert an inner link between two intermediate plates with a seal ring interposed therebetween, but the intermediate plates are in loose relation with the joint pin. In addition, the plate thickness, which is the widthwise spacing, is significantly thinner than the widthwise spacing of the inner links, and it can be easily widened in the widthwise direction compared to the conventional method of widening the inner links at both ends of the chain. The inner link can be inserted through the seal ring.

上述した実施の形態は、２列シールチェーンで説明したが、これに限らず、３列、４列等の複列シールチェーンに同様に適用可能である。また、中間プレート１７は、２枚の外プレートを重ねたものでもよい。ローラチェーンで説明したが、ローラを省いたブシュチェーンにも同様に適用可能である。 The above-described embodiment has been described with respect to the two-row seal chain, but the present invention is not limited to this, and can be similarly applied to a three-row, four-row, etc. double-row seal chain. Further, the intermediate plate 17 may be a stack of two outer plates. Although the explanation has been made on the roller chain, the present invention is also applicable to a bush chain without the roller.

継手装置２０は、２列シールチェーン用であるため、内リンク６_２が２個、シールリング１２が１２個であるが、ｎ列シールチェーンであれば、内リンクｎ個、シールリングが（４ｎ＋４）個となり、継手ピン２本、継手プレート４枚は同じである。 Coupling device 20 are the for two rows seal chain, the inner links 6 ₂ 2, although the seal ring 12 is 12, if n rows seal chain, the inner links of n, the seal ring (4n + 4 ), Two joint pins and four joint plates are the same.

１複列（２列）シールチェーン（有端）
１_１複列（２列）シールチェーン（無端）
２内プレート
３ブシュ
３ａ突出部
６内リンク
６_１両端部の内リンク
６_２継手用内リンク
７外プレート
１２シールリング
１３軸受部
１７中間プレート
１７_１両端の中間プレート
２０継手装置
２７継手プレート
２９継手ピン
２９ａ抜止め用係合部（溝）
３０抜止め部材（クリップ）
Ｒ１内リンク列
Ｒ２外リンク列 1 Double-row (two-row) seal chain (end)
1 ₁ Double row (2 rows) seal chain (endless)
The second plate 3 bush 3a protruding portion 6 in the link 6 ₁ both end portions of the inner link 6 in a _second joint link 7 the outer plate 12 sealing ring 13 bearing portion 17 the intermediate plate 17 ₁ across the intermediate plate 20 coupling devices 27 coupling plate 29 coupling Pin 29a Locking engagement part (groove)
30 retaining member (clip)
R1 inner link row R2 outer link row

Claims

Double-row inner links and outer links are alternately connected by inserting the pins of the outer links into the bushes of the inner links, and projecting the bushes from the inner plate of the inner links by a predetermined amount to form the protruding portions. In a joint device of a double-row seal chain, wherein a seal ring arranged so as to surround is sandwiched between the inner plate of the inner link and the outer plate or the intermediate plate of the outer link,
Arrangement the longitudinal ends of the double row seal chain, linked by a chain side of the joint pin having a retainer engaging groove intermediate plate on both end portions between said links is positioned adjacent to the width direction Was
Joint pins on the joint side, which are respectively inserted into the pin holes on the tip side of the intermediate plate at both ends in the longitudinal direction, and which have engagement grooves for retaining at both ends,
An inner link on the joint side fitted and inserted into the joint pin on the joint side,
A joint plate connecting between the joint pin on the chain side and the joint pin for the joint on the joint side,
A retaining member that engages with the engagement groove of the joint pin on the chain side and the joint side to lock the joint plate,
Wherein the number of double rows of double row sealing chain is n, and the inner link for the n of the joint, and the joint side of the joint pin having a retainer engaging grooves at both end portions of the two, 4n + 4 pieces of the sealing and the ring, it includes a four of the joint plate, and four of said retaining member for locking the front Symbol joint plate joint pins of the chain side and the joint side, as one set,
A joint device for a double-row seal chain, which is characterized in that

The double-row seal chain is a double-row seal chain, and n is 2,
It said retaining member engages over the front Symbol engaging groove of two of said joint pins adjacent thereto respectively a clip for locking one said joint plate,
The joint device for a double-row seal chain according to claim 1.

Double-row inner links and outer links are alternately connected by inserting the pins of the outer links into the bushes of the inner links, and projecting the bushes from the inner plate of the inner links by a predetermined amount to form the protruding portions. In a joint method of a double row seal chain, wherein a seal ring arranged so as to surround is sandwiched between the inner plate of the inner link and the outer plate or the intermediate plate of the outer link,
Both ends in the longitudinal direction of the double-row seal chain are arranged such that the intermediate plate is connected between the inner links adjacent to each other in the width direction by chain-side joint pins having retaining engagement portions at both ends. Was
Inserting the joint pins on the joint side having the retaining engagement portions at both ends into the intermediate plates located at both longitudinal ends of the double-row seal chain,
Inserting the seal rings into the inserted pair of joint pins on the joint side from both ends thereof;
The joint pin of the joint side of the pair, by inserting the inner link for coupling the both ends thereof, sandwiching the sealing ring between the the protrusion of said bushing inner link for the joint intermediate plate Process,
A step of inserting the seal rings from both ends of the pair of joint pins on the joint side into which the inner links for the joint are inserted;
A joint plate is fitted and inserted across the pair of joint-side joint pins and the chain-side joint pins arranged at the ends of the double-row seal chain adjacent to the joint pins, and the joint plates at both widthwise end portions. In a state of being pressed inward in the width direction, the step of engaging the retaining member with the retaining engaging portions of the coupling pins on the chain side and the coupling side to lock the coupling plate,
A double-row seal chain coupling method comprising:

An inner link row in which a plurality of inner links in which both ends of a pair of inner plates are connected by a bush are arranged in the width direction, and an end plate of the outer plate on the outer side in the width direction are connected by pins and are loosely engaged with the intermediate plates And an outer link row having an inner link between adjacent inner links, the pins are fitted into the bushes and alternately connected, and the bushes are projected from the inner plate by a predetermined amount, and the projections are formed. In a double-row seal chain in which a seal ring is interposed between the inner plate and the outer plate or the intermediate plate so as to surround the portion, and a lubricating oil is held in a bearing portion between the bush and the pin,
Joint pin having a retainer engaging portion in both ends, the arranged four consecutive in place of the pin, the joint plate is connected in place of the prior Kigai plates at both ends of the joint pins adjacent A retaining member is engaged with the retaining engagement portion of the joint pin, and the joint plate is locked to the joint pin.
An endless double-row seal chain joined by the joint device according to claim 1 or 2 or the joint method according to claim 3.