JP2008189462A - Elevator device - Google Patents

Elevator device Download PDF

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JP2008189462A
JP2008189462A JP2007028901A JP2007028901A JP2008189462A JP 2008189462 A JP2008189462 A JP 2008189462A JP 2007028901 A JP2007028901 A JP 2007028901A JP 2007028901 A JP2007028901 A JP 2007028901A JP 2008189462 A JP2008189462 A JP 2008189462A
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plate
displacement
spring
springs
detecting
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JP5228330B2 (en
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Minoru Hirose
稔 廣瀬
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Fujitec Co Ltd
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Fujitec Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To detect load of a car and slack of main ropes of an elevator in a compact space at an inexpensive cost. <P>SOLUTION: The elevator device is provided with first springs 13 provided between rods 2 fixed at end parts of the main ropes 1 and a supporting frame 11, a plate 14 common for the respective rods 2, second springs 15 provided between the rods 2 and the plate 14, a third spring 22 provided between the plate 14 and a bracket 20 and a plurality of linear drive guides 4 for limiting moving direction of the plate 14 to one reciprocating direction, a displacement measuring device 23 for detecting the load of the car by measuring displacement of the plate 14 and a main rope slack detection device, provided between the plate 14 and the bracket 20, for detecting the slack of the main ropes 1 by detecting the displacement of the plate 14 larger than a predetermined value with a switch 32. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、エレベータのかごの荷重及びかごを吊持する主ロープの緩みを検出する装置を備えたエレベータ装置に関するものである。   The present invention relates to an elevator apparatus equipped with an apparatus for detecting the load of an elevator car and the looseness of a main rope that holds the car.

エレベータかごの荷重検出装置には種種のものがあるが、２：１ローピングのエレベータの場合においては、主ロープの一端が昇降路の固定側に連結されるロープヒッチ部において、主ロープが固定されたロッドと固定側との間に設けた２種類のばねにプレートを挟み、このプレートの変位を測定する装置がある。この装置を図２及び図２のＡ−Ａ断面図である図３により説明する。   There are various types of elevator car load detection devices, but in the case of a 2: 1 roping elevator, the main rope is fixed at the rope hitch part where one end of the main rope is connected to the fixed side of the hoistway. There is a device for measuring the displacement of a plate by sandwiching the plate between two kinds of springs provided between the rod and the fixed side. This apparatus will be described with reference to FIG. 2 which is a cross-sectional view taken along the line AA of FIG. 2 and FIG.

図において，１は主ロープ、２は各主ロープ１の端部に固定されたロッド、１０は昇降路壁やガイドレールなどの昇降路固定側に固定されたブラケット、１１はブラケット１０から下方に伸びた支持枠であり、ロッド２が貫通し、ロッド２に螺合したナット１２との間に第１のばね１３が配置されている。１４は各ロッド２が貫通したプレートでナット１２との間に第１のばね１３よりばね定数の小さい第２のばね１５が配置されている。１６はプレート１４に直立するように固定されたロッドである。   In the figure, 1 is a main rope, 2 is a rod fixed to the end of each main rope 1, 10 is a bracket fixed to a hoistway fixed side such as a hoistway wall or a guide rail, and 11 is downward from the bracket 10. A first spring 13 is disposed between the extended support frame, the rod 2 passing through, and the nut 12 screwed into the rod 2. Reference numeral 14 denotes a plate through which each rod 2 penetrates, and a second spring 15 having a smaller spring constant than the first spring 13 is arranged between the nut 12 and the nut 12. Reference numeral 16 denotes a rod fixed so as to stand upright on the plate 14.

２０は昇降路壁やガイドレールなどの昇降路固定側に固定されたブラケット、２１はリニアベアリングやリニアブッシュなどの直動システムによりロッド１６を鉛直方向にのみ可動にガイドする直動ガイドで、ブラケット２０に固定されている。２２は直動ガイド２１とプレート１４との間に設けられた第３のばね、２３はブラケット２０に固定されてプレート１４の変位を測定する変位測定器である。   20 is a bracket fixed to a hoistway fixed side such as a hoistway wall or a guide rail, and 21 is a linear motion guide that guides the rod 16 movably only in the vertical direction by a linear motion system such as a linear bearing or a linear bush. 20 is fixed. Reference numeral 22 denotes a third spring provided between the linear motion guide 21 and the plate 14, and 23 denotes a displacement measuring instrument which is fixed to the bracket 20 and measures the displacement of the plate 14.

この構成によれば、ばね１５，２２でプレート１４を上下から挟み、更に直動ガイド２１を使用しているため、各ばね１３のたわみ量にばらつきがあっても、プレート１４が傾くことはなく、各ばね１３のたわみ量の平均値を正確に測定することができる。また主ロープ１の本数に増減があってもプレート１４等を変更するのみで容易に対応できる。   According to this configuration, since the plate 14 is sandwiched from above and below by the springs 15 and 22 and the linear motion guide 21 is used, the plate 14 does not tilt even if the deflection amount of each spring 13 varies. The average value of the deflection amount of each spring 13 can be accurately measured. Further, even if the number of main ropes 1 is increased or decreased, it can be easily handled only by changing the plate 14 or the like.

特開２００３−２５４９号公報JP 2003-2549 A

この従来例のような２：１ローピングのエレベータでは、荷重検出装置の外に主ロープの緩みを検出する装置が設けられるため、そのスペースが別途必要になる。また前記従来例では、回転成分を抑制してロッド１６を鉛直方向にのみ可動にガイドする直動ガイド２１を１個使用しているが、この直動ガイドは高価であるという問題がある。更に第２のばねのばね力の重心と第３のばねのばね力の重心を一致させることが困難なため、信頼性の向上が難しいという問題もあった。   In the elevator of 2: 1 roping as in this conventional example, a device for detecting the looseness of the main rope is provided outside the load detection device, so that space is required separately. In the conventional example, one linear motion guide 21 that suppresses the rotational component and guides the rod 16 so as to be movable only in the vertical direction is used. However, this linear motion guide is expensive. Furthermore, since it is difficult to make the center of gravity of the spring force of the second spring coincide with the center of gravity of the spring force of the third spring, there is a problem that it is difficult to improve the reliability.

本発明は、複数の主ロープと、各主ロープの端部にそれぞれ固定されたロッドと、このロッドと固定側との間に設けたばねを備え、前記ロッドの変位を測定することによってエレベータかごの荷重を検出する荷重検出装置と、前記主ロープの緩みを検出する装置とを備えたエレベータ装置において、前記各ロッドに共通のプレートと前記各ロッドとの間にそれぞれ配置された第２のばねと、前記プレートを挟んで前記第２のばねの反対側と前記固定側との間に設けた複数の第３のばねと、前記プレートの移動方向を一つの往復方向に制限する複数の直動ガイドとを備え、前記プレートの変位を測定することにより前記かごの荷重を検出する荷重検出装置と、前記プレートと前記固定側との間に設けられ、前記プレートの所定以上の変位を検出することによって前記主ロープの緩みを検出する主ロープの緩み検出装置とを備えたものである。
また、前記主ロープの緩み検出装置は、前記プレートの変位量を拡大するレバー機構を備えたものであり、更に、前記複数の第２のばねによるばね力の重心と、前記複数の第３のばねによるばね力の重心を一致させたものである。 The present invention comprises a plurality of main ropes, rods fixed to the ends of the main ropes, and springs provided between the rods and the fixed side, and measuring the displacement of the rods, thereby measuring the elevator car. In an elevator apparatus comprising a load detection device for detecting a load and a device for detecting looseness of the main rope, a second spring disposed between each rod and the common plate for each rod; A plurality of third springs provided between the opposite side of the second spring and the fixed side across the plate, and a plurality of linear guides that restrict the moving direction of the plate to one reciprocating direction. And a load detection device that detects the load of the car by measuring the displacement of the plate, and is provided between the plate and the fixed side, and detects a displacement of the plate more than a predetermined amount. It is obtained by a slack detector of the main ropes for detecting the loosening of the main rope by Rukoto.
In addition, the main rope looseness detection device includes a lever mechanism that enlarges the displacement amount of the plate, and further includes a center of gravity of a spring force by the plurality of second springs, and the plurality of third thirds. The center of gravity of the spring force by the spring is made to coincide.

本発明によれば、荷重検出装置と主ロープの緩み検出装置とを一体化しているため、省スペースを実現できる。   According to the present invention, since the load detection device and the main rope slack detection device are integrated, space saving can be realized.

本発明の実施の形態を図１により説明する。図１は図２に相当する図であり、図２と同一符号は同一のもの示しており、支持枠１１とブラケット２０はガイドレール３に固定されている。この実施形態では従来のような回転成分を抑制してロッド１６を鉛直方向にのみ可動にガイドする高価な直動ガイドではなく、ロッド１６の直動のみをガイドする安価な直動ガイド４を２個設けることによって、コストダウンを実現している。５は支持枠１１とブラケット２０に固定されたブラケットであり、プレート１４の変位を測定する変位測定器２３が設けられている。
３０はプレート１４に位置調整自在に取り付けられたピン、３１はブラケット２０に枢着されたレバーであり、ピン３０との間に所定の隙間を設けてある。３２はブラケット２０に固定されたスイッチである。 An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a view corresponding to FIG. 2, the same reference numerals as those in FIG. 2 denote the same parts, and the support frame 11 and the bracket 20 are fixed to the guide rail 3. In this embodiment, an inexpensive linear motion guide 4 for guiding only the linear motion of the rod 16 is used instead of an expensive linear motion guide that guides the rod 16 so as to be movable only in the vertical direction while suppressing the rotational component as in the prior art. The cost reduction is realized by providing the unit. Reference numeral 5 denotes a bracket fixed to the support frame 11 and the bracket 20, and a displacement measuring device 23 for measuring the displacement of the plate 14 is provided.
Reference numeral 30 denotes a pin attached to the plate 14 so that the position thereof can be adjusted. Reference numeral 31 denotes a lever pivotally attached to the bracket 20, and a predetermined gap is provided between the pin 30 and the lever 30. Reference numeral 32 denotes a switch fixed to the bracket 20.

本実施形態における荷重検出は、図２の場合と同様に、プレート１４の変位を変位測定器２３で測定することにより行う。
主ロープの１切断などで、主ロープ１の張力が緩んだ場合には、第１のばね１３が伸びてプレート１４に取り付けられたピン３０が上昇してレバー３１を時計方向に回転させ、スイッチ３２を動作させるものである。 The load detection in the present embodiment is performed by measuring the displacement of the plate 14 with the displacement measuring device 23 as in the case of FIG.
When the tension of the main rope 1 is loosened by cutting the main rope 1 or the like, the first spring 13 extends and the pin 30 attached to the plate 14 rises to rotate the lever 31 clockwise, 32 is operated.

この実施形態によれば、荷重検出装置と主ロープの緩み検出装置とが一体になっているので、両者を別々に設置する場合に比べて省スペースになる。また、直動ガイドにはロッド１６の直動のみをガイドする安価な直動ガイド４を２個使用しているため、回転成分を抑制する高価な直動ガイド２１を使用しなくても済むので、従来に比べてコストダウンを図ることができる。更に、直動ガイド４及び第３のばね２２を２個配置しているため、第２のばね１５のばね力の重心と、第３のばね２２のばね力の重心を一致させることが容易になり、動作の安定性を向上させることができる。
更にピン３０はプレート１４に位置調整自在に取り付けられているため、ピン３０とレバー３１との間に適当な隙間を設けておくことにより、通常の荷重検出動作に支障を来たすことがないように設定できる。また、ピン３０の上下動をレバー３１で増幅するのでスイッチ３２の動作をより確実にできる。 According to this embodiment, since the load detection device and the main rope slack detection device are integrated, the space is saved as compared with the case where they are installed separately. In addition, since two inexpensive linear motion guides 4 that guide only the linear motion of the rod 16 are used as the linear motion guides, it is not necessary to use an expensive linear motion guide 21 that suppresses rotational components. The cost can be reduced as compared with the conventional case. Further, since the linear guide 4 and the third spring 22 are arranged, it is easy to make the center of gravity of the spring force of the second spring 15 coincide with the center of gravity of the spring force of the third spring 22. Thus, the stability of the operation can be improved.
Further, since the pin 30 is attached to the plate 14 so that the position thereof can be freely adjusted, an appropriate gap is provided between the pin 30 and the lever 31 so that the normal load detection operation is not hindered. Can be set. Further, since the vertical movement of the pin 30 is amplified by the lever 31, the operation of the switch 32 can be made more reliable.

前記実施形態において、直動ガイド４及び第３のばね２２をそれぞれ２個使用しているが３個以上でもよい。また主ロープ１の数も制限されることはない。更に本装置はエレベータの種類に応じて，上下逆又は横方向に使用することも可能である。   In the embodiment, two linear motion guides 4 and three third springs 22 are used, but three or more may be used. Further, the number of main ropes 1 is not limited. Furthermore, the apparatus can be used upside down or in the horizontal direction, depending on the type of elevator.

本発明の実施の形態を示す図である。It is a figure which shows embodiment of this invention. 従来の荷重検出装置を示す図である。It is a figure which shows the conventional load detection apparatus. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG.

符号の説明Explanation of symbols

１ 主ロープ
２ ロッド
３ ガイドレール
４ 直動ガイド
５，１０，２０ ブラケット
１１ 支持枠
１３ 第１のばね
１４ プレート
１５ 第２のばね
１６ ロッド
２２ 第３のばね
２３ 変位測定器
３０ ピン
３１ レバー
３２ スイッチ DESCRIPTION OF SYMBOLS 1 Main rope 2 Rod 3 Guide rail 4 Linear motion guide 5, 10, 20 Bracket 11 Support frame 13 1st spring 14 Plate 15 2nd spring 16 Rod 22 3rd spring 23 Displacement measuring device 30 Pin 31 Lever 32 Switch

Claims (3)

複数の主ロープと、各主ロープの端部にそれぞれ固定されたロッドと、このロッドと固定側との間に設けたばねを備え、前記ロッドの変位を測定することによってエレベータかごの荷重を検出する荷重検出装置と、前記主ロープの緩みを検出する装置とを備えたエレベータ装置において、
前記各ロッドに共通のプレートと前記各ロッドとの間にそれぞれ配置された第２のばねと、前記プレートを挟んで前記第２のばねの反対側と前記固定側との間に設けた複数の第３のばねと、前記プレートの移動方向を一つの往復方向に制限する複数の直動ガイドとを備え、前記プレートの変位を測定することにより前記かごの荷重を検出する荷重検出装置と、前記プレートと前記固定側との間に設けられ、前記プレートの所定以上の変位を検出することによって前記主ロープの緩みを検出する主ロープの緩み検出装置とを備えたことを特徴とするエレベータ装置。 A plurality of main ropes, rods fixed to the ends of the main ropes, and springs provided between the rods and the fixed side are provided, and the load of the elevator car is detected by measuring the displacement of the rods. In an elevator apparatus comprising a load detection device and a device for detecting looseness of the main rope,
A second spring disposed between each rod and a common plate for each rod; and a plurality of springs provided between the opposite side of the second spring and the fixed side across the plate. A load detecting device that includes a third spring and a plurality of linear motion guides that limit a moving direction of the plate to one reciprocating direction, and detects a load of the car by measuring a displacement of the plate; An elevator apparatus comprising: a main rope slack detection device that is provided between a plate and the fixed side and detects a slack of the main rope by detecting a displacement of a predetermined amount or more of the plate. 前記主ロープの緩み検出装置は、前記プレートの変位量を拡大するレバー機構を備えていることを特徴とする請求項１に記載のエレベータ装置。   The elevator apparatus according to claim 1, wherein the main rope looseness detection device includes a lever mechanism that increases a displacement amount of the plate. 前記複数の第２のばねによるばね力の重心と、前記複数の第３のばねによるばね力の重心は一致していることを特徴とする請求項１又は２に記載のエレベータ装置。   3. The elevator apparatus according to claim 1, wherein a center of gravity of a spring force by the plurality of second springs is coincident with a center of gravity of a spring force by the plurality of third springs.
JP2007028901A 2007-02-08 2007-02-08 Elevator equipment Expired - Fee Related JP5228330B2 (en)

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CN102874668A (en) * 2012-10-31 2013-01-16 蒂森克虏伯家用电梯(上海)有限公司 Device for detecting breaking or loosing of steel wire rope of household elevator
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CN112875462A (en) * 2021-03-26 2021-06-01 湖北江汉建筑工程机械有限公司 Cable protection device
CN113860118A (en) * 2021-10-21 2021-12-31 安徽大学 Elevator with rope breakage alarm function

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Publication number Priority date Publication date Assignee Title
WO2012024927A1 (en) * 2010-08-27 2012-03-01 康力电梯股份有限公司 Rope slack-preventing device of lift
CN102874668A (en) * 2012-10-31 2013-01-16 蒂森克虏伯家用电梯(上海)有限公司 Device for detecting breaking or loosing of steel wire rope of household elevator
CN102874668B (en) * 2012-10-31 2014-12-10 蒂森克虏伯家用电梯(上海)有限公司 Device for detecting breaking or loosing of steel wire rope of household elevator
CN103482509A (en) * 2013-08-13 2014-01-01 河南卫华重型机械股份有限公司 Steel-wire-rope fixing device
CN103588061A (en) * 2013-11-29 2014-02-19 日立电梯（中国）有限公司 Elevator weighing device
EP3456674A1 (en) * 2017-09-15 2019-03-20 Otis Elevator Company Elevator tension member slack detection system and method of performing an emergency stop operation of an elevator system
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CN112875462A (en) * 2021-03-26 2021-06-01 湖北江汉建筑工程机械有限公司 Cable protection device
CN113860118A (en) * 2021-10-21 2021-12-31 安徽大学 Elevator with rope breakage alarm function
CN113860118B (en) * 2021-10-21 2023-02-14 安徽大学 Elevator with rope breakage alarm function

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