JP4679846B2 - Man conveyor moving handrail drive device - Google Patents

Man conveyor moving handrail drive device Download PDF

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JP4679846B2
JP4679846B2 JP2004200520A JP2004200520A JP4679846B2 JP 4679846 B2 JP4679846 B2 JP 4679846B2 JP 2004200520 A JP2004200520 A JP 2004200520A JP 2004200520 A JP2004200520 A JP 2004200520A JP 4679846 B2 JP4679846 B2 JP 4679846B2
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pair
handrail
moving handrail
rollers
man conveyor
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JP2006021871A (en
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二郎 松山
敦司 川崎
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Mitsubishi Electric Corp
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Description

この発明は、エスカレータ等のマンコンベアの移動手摺駆動装置に関するものである。   The present invention relates to a moving handrail drive device for a man conveyor such as an escalator.

従来のマンコンベアの移動手摺駆動装置においては、移動手摺の表裏両面を駆動ベルトと反作用ベルトとで挟み込み、各ベルトの手摺側内側面に当接するローラを設け、反作用ベルト側ローラを駆動ベルト側ローラに押し付けた状態で駆動ベルトにより移動手摺を駆動している（例えば、特許文献１参照）。   In the conventional handrail driving device for a man conveyor, both the front and back surfaces of the moving handrail are sandwiched between a driving belt and a reaction belt, and a roller that contacts the inner surface of the handrail side of each belt is provided. The moving handrail is driven by the drive belt in a state of being pressed against (see, for example, Patent Document 1).

特許第３４２３３３３号公報Japanese Patent No. 3423333

従来のマンコンベアの移動手摺駆動装置では、駆動ベルトと反作用ベルトが必要となり、構造が複雑化する。また、手摺駆動力が移動手摺の片面のみに付加されるため、加圧力を上げずに所定の駆動力を得るためにはローラが多数必要となり、構造が大型化するという問題があった。   In the conventional handrail drive device for a man conveyor, a drive belt and a reaction belt are required, and the structure is complicated. Further, since the handrail driving force is applied only to one side of the moving handrail, a large number of rollers are required to obtain a predetermined driving force without increasing the pressing force, and the structure is increased in size.

この発明は、上述のような課題を解決するためになされたもので、その目的は、移動手摺の両面に駆動力を与えることにより、小型かつ単純な構造で実現可能なマンコンベアの移動手摺駆動装置を提供するものである。また、過大な加圧力を与えることなく有効な手摺駆動力を付加できることにより、移動手摺の長寿命化が可能なマンコンベアの移動手摺駆動装置を提供することを目的とするものである。   The present invention has been made to solve the above-described problems, and its object is to drive a moving handrail of a man conveyor that can be realized with a small and simple structure by applying a driving force to both sides of the moving handrail. A device is provided. It is another object of the present invention to provide a moving handrail driving device for a man conveyor that can extend the life of a moving handrail by applying an effective handrail driving force without applying excessive pressure.

この発明に係るマンコンベアの移動手摺駆動装置は、移動手摺の帰路側を両面より挟み込む左右一対の上部固定ローラ及び左右一対の下部加圧ローラと、一対の下部加圧ローラを一端部に設けられたピボットを支点として回転自在に支持する揺動自在なレバーと、レバーのピボットと反対側の他端部に可動ブラケットを介して設けられ、一対の加圧ローラを対向する一対の固定ローラ方向に押し付ける加圧ばねと、一対の固定ローラ及び一対の加圧ローラを互いに逆方向に同期して回転させ、移動手摺の両面に対して駆動力を付加する手摺駆動手段とを備え、手摺駆動手段を、一対の固定ローラ及び一対の加圧ローラの回転軸にそれぞれ取り付けられた４個の従動スプロケットと、これら従動スプロケットと噛み合う１本の駆動チェーンと、従動スプロケットの下部に設けられ、駆動チェーンに動力を伝達させる駆動スプロケットと、従動スプロケットの下部に設けられた１個の可動スプロケットと、可動スプロケットを駆動チェーン側に押し付けて駆動チェーンに一定の張力を付加するばねとから構成したものである。 The moving handrail drive device for a man conveyor according to the present invention includes a pair of left and right upper fixed rollers and a pair of left and right lower pressure rollers that sandwich the return path side of the moving handrail from both sides, and a pair of lower pressure rollers at one end. A pivotable lever that supports the pivot pivotally as a fulcrum, and a movable bracket on the other end opposite to the pivot of the lever in the direction of the pair of fixed rollers facing the pair of pressure rollers A pressure spring for pressing, and a handrail driving means for rotating the pair of fixed rollers and the pair of pressure rollers in opposite directions to apply driving force to both surfaces of the moving handrail, Four driven sprockets respectively attached to the rotation shafts of the pair of fixed rollers and the pair of pressure rollers, and one drive chain meshing with the driven sprockets; Provided under the dynamic sprockets, constant drive and dynamic sprocket that is transmitting power to the drive chain, and one movable sprockets provided at the lower portion of the driven sprocket, the drive chain is pressed against a movable sprocket bets on the drive side of the chain And a spring for applying a tension of.

この発明によれば、移動手摺の帰路側を両面より挟み込む上部固定ローラ及び加圧ローラが手摺駆動手段により駆動されるため、全てのローラと移動手摺との接触面を介して手摺駆動力が付加されるので、移動手摺の片面だけに接触するローラやベルトにより駆動する場合に比べて、移動手摺に駆動力を伝達する箇所が２倍に増加するため、挟み込むローラ数が同一であれば加圧力を半分にしても、移動手摺に対して同じ駆動力を付加することができ、移動手摺を過大な圧力で押し付ける必要がなくなり、移動手摺の長寿命化が可能となる。   According to this invention, since the upper fixed roller and the pressure roller that sandwich the return path side of the moving handrail from both sides are driven by the handrail driving means, the handrail driving force is applied via the contact surfaces of all the rollers and the moving handrail. Therefore, compared with driving with a roller or belt that contacts only one side of the moving handrail, the number of locations where the driving force is transmitted to the moving handrail is doubled. Even if halved, the same driving force can be applied to the moving handrail, and it is not necessary to press the moving handrail with excessive pressure, and the life of the moving handrail can be extended.

実施の形態１．
図１はこの発明の実施の形態１におけるマンコンベアの移動手摺駆動装置をエスカレータに組み込んだ状態を示す側面図、図２はこの発明の実施の形態１におけるマンコンベアの移動手摺駆動装置を拡大して示す斜視図、図３はこの発明の実施の形態１におけるマンコンベアの移動手摺駆動装置を示す背面図である。
図において、１は上下階の梁間に跨設されて傾斜部を形成するマンコンベアのトラスで、その両側には、無端状の移動手摺２を案内する欄干３が立設されている。また、トラス１の内部長手方向には、無端状の踏段（図示せず）が複数配置されている。マンコンベアの無端状の踏段（図示せず）は、例えば、トラス１の上部機械室内に収納された駆動電動機（図示せず）によって駆動される踏段スプロケット（図示せず）に巻き掛けられた無端状の踏段チェーン（図示せず）に縦列に係止されて移動する。
この発明の手摺駆動装置４は、取り付けフレーム５を介してトラス１に固定され、移動手摺２の表裏両面に対して駆動力を付加する構造である。すなわち、手摺駆動装置４は、帰路側の移動手摺２を上下両面より挟み込む左右一対の上部固定ローラ６及び左右一対の下部加圧ローラ７を備えている。一対の下部加圧ローラ７は、外側寄り端部に設けられたピボット８を支点として揺動自在なレバー９上に回転自在に支持されており、レバー９のピボット８と反対側の内側寄り端部は可動ブラケット１０を介して加圧手段である加圧ばね１１により上方に押し付けられている。この加圧ばね１１の押付け力により一対の下部加圧ローラ７は、移動手摺２を挟んで一対の上部固定ローラ６方向に押し付けられている。レバー９の可動ブラケット１０側は長穴構造となっており、レバー９はピボット８を支点として加圧ばね１１により上向き方向に回転可能となっている。一対の固定ローラ６及び一対の加圧ローラ７は、各々の回転軸端に従動スプロケット１２が取り付けられており、これらの従動スプロケット１２と噛み合う１本の駆動チェーン１３により同時に駆動される。この駆動チェーン１３は、下部に設けられた駆動スプロケット１４に伝達される動力により駆動される。この駆動スプロケット１４の動力は、駆動電動機、手摺駆動スプロケット及び手摺駆動チェーン（いずれも図示せず）等を介して伝達される。また、駆動チェーン１３は、可動ブラケット１５上に回転自在に支持された可動スプロケット１６が、ばね１７により押し付けられることにより、駆動チェーン１３に一定の張力が付加される構成となっている。上記従動スプロケット１２、駆動チェーン１３、駆動スプロケット１４、可動スプロケット１６等からなるチェーン伝達機構による手摺駆動手段が構成されているが、ベルト伝達機構による手摺駆動手段であっても構わない。また、加圧ばね１１及びばね１７は、取り付けフレーム５に固定された固定ブラケット１８により一端が固定支持されている。なお、図中の矢印３０は移動手摺２の移動方向、矢印３１はローラの回転方向を示す。 Embodiment 1 FIG.
FIG. 1 is a side view showing a state in which the moving handrail driving device for a man conveyor according to Embodiment 1 of the present invention is incorporated in an escalator, and FIG. 2 is an enlarged view of the moving handrail driving device for a man conveyor according to Embodiment 1 of the present invention. FIG. 3 is a rear view showing the moving handrail driving device for the man conveyor in the first embodiment of the present invention.
In the figure, reference numeral 1 denotes a truss of a man conveyor that is straddled between beams on the upper and lower floors, and has a balustrade 3 for guiding an endless moving handrail 2 on both sides thereof. A plurality of endless steps (not shown) are arranged in the internal longitudinal direction of the truss 1. An endless step (not shown) of the man conveyor is, for example, an endless wound around a step sprocket (not shown) driven by a drive motor (not shown) housed in the upper machine room of the truss 1. It moves while being locked in a column by a stepped chain (not shown).
The handrail drive device 4 of the present invention is fixed to the truss 1 via an attachment frame 5 and has a structure for applying a driving force to both the front and back surfaces of the moving handrail 2. That is, the handrail driving device 4 includes a pair of left and right upper fixed rollers 6 and a pair of left and right lower pressure rollers 7 that sandwich the return-side moving handrail 2 from both upper and lower surfaces. The pair of lower pressure rollers 7 are rotatably supported on a swingable lever 9 with a pivot 8 provided at an outer end portion as a fulcrum, and an inner side end opposite to the pivot 8 of the lever 9. The part is pressed upward by a pressurizing spring 11 which is a pressurizing means via a movable bracket 10. The pair of lower pressure rollers 7 is pressed in the direction of the pair of upper fixed rollers 6 with the moving handrail 2 sandwiched between them by the pressing force of the pressure spring 11. The lever 9 has a long hole structure on the movable bracket 10 side, and the lever 9 can be rotated upward by a pressure spring 11 with the pivot 8 as a fulcrum. The pair of fixed rollers 6 and the pair of pressure rollers 7 have driven sprockets 12 attached to the respective rotary shaft ends, and are driven simultaneously by a single drive chain 13 that meshes with these driven sprockets 12. This drive chain 13 is driven by the power transmitted to the drive sprocket 14 provided in the lower part. The power of the drive sprocket 14 is transmitted via a drive motor, a handrail drive sprocket, a handrail drive chain (all not shown), and the like. The drive chain 13 is configured such that a constant tension is applied to the drive chain 13 by pressing a movable sprocket 16 rotatably supported on the movable bracket 15 by a spring 17. Although the handrail drive means by the chain transmission mechanism comprising the driven sprocket 12, the drive chain 13, the drive sprocket 14, the movable sprocket 16 and the like is configured, the handrail drive means by the belt transmission mechanism may be used. One end of each of the pressure spring 11 and the spring 17 is fixedly supported by a fixing bracket 18 fixed to the mounting frame 5. In addition, the arrow 30 in a figure shows the moving direction of the moving handrail 2, and the arrow 31 shows the rotation direction of a roller.

上記のような構成によれば、移動手摺２を上下から挟み込んでいる左右一対の上部固定ローラ６及び左右一対の下部加圧ローラ７が１本の駆動チェーン１３により駆動されるため、全てのローラと移動手摺２との接触面を介して手摺駆動力が付加される。その結果、移動手摺２の片面だけに接触するローラやベルトにより駆動する場合に比べて、移動手摺２に駆動力を伝達する箇所が２倍に増加するため、挟み込むローラ数が同一であれば加圧力を半分にしても、移動手摺２に対して同じ駆動力を付加することができ、移動手摺２を過大な圧力で押し付ける必要がなくなり、移動手摺の長寿命化が可能となる。   According to the above configuration, since the pair of left and right upper fixed rollers 6 and the pair of left and right lower pressure rollers 7 sandwiching the movable handrail 2 from above and below are driven by the single drive chain 13, all the rollers are driven. And a handrail driving force is applied via a contact surface between the handrail 2 and the movable handrail 2. As a result, the number of locations where the driving force is transmitted to the moving handrail 2 is doubled compared to the case of driving with a roller or belt that contacts only one side of the moving handrail 2, so if the number of rollers to be sandwiched is the same Even if the pressure is halved, the same driving force can be applied to the moving handrail 2, and it is not necessary to press the moving handrail 2 with an excessive pressure, and the life of the moving handrail can be extended.

実施の形態２．
図４はこの発明の実施の形態２におけるマンコンベアの移動手摺駆動装置を拡大して示す斜視図である。
実施の形態１における移動手摺駆動装置４では、一対の上部固定ローラ６及び一対の下部加圧ローラ７の回転軸端に従動スプロケット１２をそれぞれ取り付け、これらの従動スプロケット１２と噛み合う１本の駆動チェーン１３及びこの駆動チェーンを駆動する駆動スプロケット１４等を備えることにより、手摺駆動力が得られる構成としたが、この実施の形態２では、左右一対の上部固定ローラ６は、固定フレーム１９上に回転自在に支持されており、左右一対の下部加圧ローラ７は、可動フレーム２０上に回転自在に支持されている。そして、可動フレーム２０は取り付けフレーム５に固定された固定ブラケット１８に一端を固定された加圧ばね１１により上部固定ローラ６側に押し付けられている。上部固定ローラ６は、モータ２１により駆動される減速機２２の出力軸から歯車機構２３により、矢印３１の方向に回転駆動される。一方、下部加圧ローラ７は、同様に構成された別個の駆動力伝達機構により、上部固定ローラ６とは逆方向に同期して回転駆動される。その結果、移動手摺２は、矢印３０の方向に駆動される。図中の矢印３２は別個のモータ２１の回転方向を示し、互いに逆方向となる。 Embodiment 2. FIG.
FIG. 4 is an enlarged perspective view showing a moving handrail drive device for a man conveyor according to Embodiment 2 of the present invention.
In the moving handrail drive device 4 according to the first embodiment, the driven sprockets 12 are respectively attached to the rotation shaft ends of the pair of upper fixed rollers 6 and the pair of lower pressure rollers 7, and one drive chain is engaged with these driven sprockets 12. 13 and the drive sprocket 14 for driving the drive chain, etc., a handrail driving force is obtained. In the second embodiment, the pair of left and right upper fixed rollers 6 rotate on the fixed frame 19. The pair of left and right lower pressure rollers 7 are supported on the movable frame 20 so as to be freely rotatable. The movable frame 20 is pressed against the upper fixed roller 6 by a pressure spring 11 having one end fixed to a fixed bracket 18 fixed to the mounting frame 5. The upper fixed roller 6 is rotationally driven in the direction of the arrow 31 by the gear mechanism 23 from the output shaft of the speed reducer 22 driven by the motor 21. On the other hand, the lower pressure roller 7 is rotationally driven in synchronization with the upper fixed roller 6 in a reverse direction by a separate driving force transmission mechanism similarly configured. As a result, the moving handrail 2 is driven in the direction of the arrow 30. Arrows 32 in the figure indicate the directions of rotation of the separate motors 21 and are opposite to each other.

上記のような構成においても、実施の形態１と同様に、上部固定ローラ６及び下部加圧ローラ７が、手摺と接触する全ての接触箇所において手摺駆動力が付加されるため、移動手摺２の片面だけに接触するローラやベルトにより駆動する場合に比べて、移動手摺２に駆動力を伝達する箇所が２倍に増加するため、挟み込むローラ数が同一であれば加圧力を半分にしても、移動手摺２に対して同じ駆動力を付加することができ、移動手摺２を過大な圧力で押し付ける必要がなくなり、移動手摺の長寿命化が可能となる。   Even in the configuration as described above, as in the first embodiment, the upper fixed roller 6 and the lower pressure roller 7 are applied with handrail driving force at all contact points where they contact the handrail. Compared to driving with a roller or belt that contacts only one side, the number of places where the driving force is transmitted to the moving handrail 2 is doubled. The same driving force can be applied to the moving handrail 2, and it is not necessary to press the moving handrail 2 with an excessive pressure, and the life of the moving handrail can be extended.

この発明の実施の形態１におけるマンコンベアの移動手摺駆動装置をエスカレータに組み込んだ状態を示す側面図である。It is a side view which shows the state which built the moving handrail drive device of the man conveyor in Embodiment 1 of this invention in the escalator. この発明の実施の形態１におけるマンコンベアの移動手摺駆動装置を拡大して示す斜視図である。It is a perspective view which expands and shows the moving handrail drive device of the man conveyor in Embodiment 1 of this invention. この発明の実施の形態１におけるマンコンベアの移動手摺駆動装置を示す背面図である。It is a rear view which shows the moving handrail drive device of the man conveyor in Embodiment 1 of this invention. この発明の実施の形態２におけるマンコンベアの移動手摺駆動装置を拡大して示す斜視図である。It is a perspective view which expands and shows the moving handrail drive device of the man conveyor in Embodiment 2 of this invention.

符号の説明Explanation of symbols

１ トラス、
２ 移動手摺
３ 欄干
４ 手摺駆動装置
５ 取り付けフレーム
６ 上部固定ローラ
７ 下部加圧ローラ
８ ピボット
９ レバー
１０ 可動ブラケット
１１ 加圧ばね
１２ 従動スプロケット
１３ 駆動チェーン
１４ 駆動スプロケット
１５ 可動ブラケット
１６ 可動スプロケット
１７ ばね
１８ 固定ブラケット
１９ 固定フレーム
２０ 可動フレーム
２１ モータ
２２ 減速機
２３ 歯車機構
３０ 移動手摺の移動方向
３１ ローラの回転方向
３２ モータの回転方向 1 truss,
2 Moving handrail 3 Railing 4 Handrail drive device 5 Mounting frame 6 Upper fixed roller 7 Lower pressure roller 8 Pivot 9 Lever
10 Movable bracket 11 Pressure spring
12 driven sprocket 13 drive chain 14 drive sprocket 15 movable bracket 16 movable sprocket 17 spring 18 fixed bracket 19 fixed frame 20 movable frame 21 motor 22 speed reducer 23 gear mechanism 30 moving direction of moving handrail 31 rotating direction of roller 32 rotating direction of motor

Claims (3)

移動手摺を有するマンコンベアにおいて、
前記移動手摺の帰路側を両面より挟み込む左右一対の上部固定ローラ及び左右一対の下部加圧ローラと、
前記一対の下部加圧ローラを一端部に設けられたピボットを支点として回転自在に支持する揺動自在なレバーと、
前記レバーのピボットと反対側の他端部に可動ブラケットを介して設けられ、前記一対の加圧ローラを対向する前記一対の固定ローラ方向に押し付ける加圧ばねと、
前記一対の固定ローラ及び一対の加圧ローラを互いに逆方向に同期して回転させ、前記移動手摺の両面に対して駆動力を付加する手摺駆動手段とを備え、
前記手摺駆動手段を、前記一対の固定ローラ及び一対の加圧ローラの回転軸にそれぞれ取り付けられた４個の従動スプロケットと、これら従動スプロケットと噛み合う１本の駆動チェーンと、前記従動スプロケットの下部に設けられ、前記駆動チェーンに動力を伝達させる駆動スプロケットと、前記従動スプロケットの下部に設けられた１個の可動スプロケットと、前記可動スプロケットを前記駆動チェーン側に押し付けて駆動チェーンに一定の張力を付加するばねとから構成したことを特徴とするマンコンベアの移動手摺駆動装置。 In a man conveyor with a moving handrail,
A pair of left and right upper fixed rollers and a pair of left and right lower pressure rollers that sandwich the return side of the moving handrail from both sides;
A swingable lever that rotatably supports the pair of lower pressure rollers with a pivot provided at one end as a fulcrum;
A pressure spring provided on the other end opposite to the pivot of the lever via a movable bracket and pressing the pair of pressure rollers toward the pair of fixed rollers facing each other;
Handrail driving means for rotating the pair of fixed rollers and the pair of pressure rollers in synchronization with each other in opposite directions, and applying a driving force to both surfaces of the moving handrail,
The handrail driving means is provided with four driven sprockets respectively attached to the rotation shafts of the pair of fixed rollers and the pair of pressure rollers, one drive chain meshing with the driven sprockets, and a lower portion of the driven sprocket. provided, the drive moving the sprocket that is transmitting power to the drive chain, one and a movable sprocket provided in a lower portion of the driven sprocket, fixed the movable sprocket preparative the pressed drive chain to the drive chain side A moving handrail drive device for a man conveyor characterized by comprising a spring for applying tension. 手摺駆動手段は、チェーン伝達機構に代えてベルト伝達機構により一対の固定ローラ及び一対の加圧ローラを逆方向に同期して回転させる構成であることを特徴とする請求項１記載のマンコンベアの移動手摺駆動装置。   2. The man conveyor according to claim 1, wherein the handrail driving means is configured to rotate the pair of fixed rollers and the pair of pressure rollers in the reverse direction by a belt transmission mechanism instead of the chain transmission mechanism. Mobile handrail drive device. 手摺駆動手段の駆動力は、マンコンベアの駆動電動機から伝達されることを特徴とする請求項１又は請求項２記載のマンコンベアの移動手摺駆動装置。   3. The moving handrail driving device for a man conveyor according to claim 1, wherein the driving force of the handrail driving means is transmitted from a driving motor for the man conveyor.
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