JP2003002549A - Load detector for elevator - Google Patents
Load detector for elevatorInfo
- Publication number
- JP2003002549A JP2003002549A JP2001192923A JP2001192923A JP2003002549A JP 2003002549 A JP2003002549 A JP 2003002549A JP 2001192923 A JP2001192923 A JP 2001192923A JP 2001192923 A JP2001192923 A JP 2001192923A JP 2003002549 A JP2003002549 A JP 2003002549A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- spring
- load
- fixed
- elevator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、エレベータのかご
の荷重を検出する装置の改良に関するものである。
【０００２】
【従来の技術】エレベータかごの荷重検出装置として、
かごを構成するかご室の床と、かご枠との間に設けた防
振ゴムのたわみ量を測定する装置がある。この装置は、
乗客がかご内で偏った乗り方をすると、各防振ゴムのた
わみ量が異なって正確な荷重の測定が困難になり、また
防振ゴムのヒステリシス及びその応答の遅さにより、荷
重が変化した場合に正確なたわみ量の変化を示さない、
という問題がある。
【０００３】また、前記装置の他に２：１ローピングの
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ばねのたわみ量を測定
する装置がある。この装置を図３により説明する。
【０００４】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、３は昇降路壁に固定さ
れたブラケット、４は各ロッド２が貫通するとともに、
ナット５により各ロッド２と連結されたプレート、６は
ブラケット3とプレート４との間に設けたばね、７はブ
ラケット３に固定されプレート４の変位を測定する変位
測定器である。かごの荷重の変化によってばね６の圧縮
量が変わるとプレート４の位置が変り、これを変位測定
器７で測定してかごの荷重を検出する。
【０００５】
【発明が解決しようとする課題】前記構成の荷重検出装
置においては、変位測定器７は全てのばね６のたわみ量
の平均値を測定しなければならないが、各主ロープ１の
長短などによるばね６のたわみ量のばらつきによってプ
レート４が傾斜するため、平均値の測定が難しいという
問題がある。更に主ロープ１の本数が増加すると主ロー
プ１の配置や平均値の取り方が一層困難になってくる。
【０００６】
【課題を解決するための手段】本発明は、荷重検出用の
プレートを支持する第２のばねを各ロープ毎に設けると
ともに、前記プレートを挟んで第２のばねの反対側と固
定側との間に第３のばねを設け、更に前記プレートの移
動方向を一つの往復方向に制限する直動ガイドを設けた
ことを特徴とするものである。
【０００７】
【発明の実施の形態】本発明の実施の形態を図１及び図
1のＡ−Ａ断面図である図２により説明する。図におい
て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。
【０００８】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。
【０００９】本実施形態によれば、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。
【００１０】前記実施形態では主ロープ１の端部が昇降
路固定側に固定されている場合について説明したが、機
械室に設置してある場合でもよく、また上下逆にすれば
かごやカウンターウエイトに使用することも可能であ
る。
【００１１】
【発明の効果】以上説明したように、本発明によれば、
主ロープ端部のロープヒッチ部に設置する荷重検出器に
おいて、より正確な荷重検出を行える装置を実現するこ
とができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an apparatus for detecting a load on an elevator car. 2. Description of the Related Art As a load detecting device for an elevator car,
There is a device for measuring the amount of deflection of a vibration-proof rubber provided between a floor of a cab constituting a car and a car frame. This device is
If the passenger rides unevenly in the car, the amount of deflection of each anti-vibration rubber is different, making it difficult to accurately measure the load. Does not show the exact change in the amount of deflection,
There is a problem. In addition, in the case of 2: 1 roping, in addition to the above-mentioned apparatus, in a rope hitch portion where one end of a main rope is connected to a fixed side of a hoistway, a rod to which a main rope is fixed and a fixed side are connected. There is a device for measuring the amount of deflection of a spring provided therebetween. This device will be described with reference to FIG. In the drawing, 1 is a main rope, 2 is a rod fixed to the end of each main rope 1, 3 is a bracket fixed to a hoistway wall, 4 is each rod 2 penetrating,
A plate connected to each rod 2 by a nut 5, a spring 6 provided between the bracket 3 and the plate 4, and a displacement measuring device 7 fixed to the bracket 3 and measuring the displacement of the plate 4. When the amount of compression of the spring 6 changes due to a change in the load on the car, the position of the plate 4 changes, and this is measured by the displacement measuring device 7 to detect the load on the car. In the load detecting device having the above-described structure, the displacement measuring device 7 must measure the average value of the deflection amounts of all the springs 6. For example, the plate 4 is inclined due to the variation in the amount of deflection of the spring 6 due to the above-mentioned factors, so that it is difficult to measure the average value. Further, as the number of the main ropes 1 increases, it becomes more difficult to arrange the main ropes 1 and obtain an average value. According to the present invention, a second spring for supporting a load detecting plate is provided for each rope, and the second spring is fixed to the opposite side of the second spring across the plate. A third spring is provided between the first and second sides, and a linear motion guide for restricting the moving direction of the plate to one reciprocating direction is provided. FIG. 1 is a diagram showing an embodiment of the present invention.
1 will be described with reference to FIG. In the figure, reference numeral 10 denotes a bracket fixed to a hoistway fixing side such as a hoistway wall or a guide rail, and 11 denotes a support frame extending downward from the bracket 10, and a nut 12 through which the rod 2 penetrates and is screwed to the rod 2. The first spring 13 is disposed between the first spring 13 and the first spring 13. Reference numeral 14 denotes a plate through which each rod 2 penetrates, and a second spring having a smaller spring constant than the first spring 13 between the plate and the nut 12.
Are disposed. Reference numeral 16 denotes a rod fixed to the plate 14 so as to stand upright. Reference numeral 20 denotes a bracket fixed to a hoistway fixed side such as a hoistway wall or a guide rail. Reference numeral 21 denotes a linear motion system that linearly guides the rod 16 only in the vertical direction by a linear motion system such as a linear bearing or a linear bush. It is fixed to the bracket 20 by a guide. 22 is a third spring provided between the linear motion guide 21 and the plate 14,
Reference numeral 23 denotes a displacement measuring device fixed to the bracket 20 to measure the displacement of the plate 14. According to the present embodiment, the plate 14 is sandwiched between the springs 15 and 22 from above and below, and the linear motion guide 21 is used. The average value of the amount of deflection of each spring 13 can be accurately measured without tilting. Further, even if the number of the main ropes 1 increases or decreases, it can be easily dealt with only by changing the plate 14 or the like. In the above-described embodiment, the case where the end of the main rope 1 is fixed to the hoistway fixed side has been described. However, the main rope 1 may be installed in the machine room. It is also possible to use. As described above, according to the present invention,
In the load detector installed on the rope hitch at the end of the main rope, it is possible to realize a device capable of more accurate load detection.
【図面の簡単な説明】 【図１】本発明の実施の形態を示す図である。 【図２】図1のＡ−Ａ断面図である。 【図３】従来の荷重検出装置を示す図である。 【符号の説明】 １ 主ロープ ２ ロッド ３，１０，２０ ブラケット ４，１４ プレート ７，２３ 変位測定器 １３ 第１のばね １５ 第２のばね ２１ 直動ガイド ２２ 第３のばね[Brief description of the drawings] FIG. 1 is a diagram showing an embodiment of the present invention. FIG. 2 is a sectional view taken along line AA of FIG. FIG. 3 is a diagram showing a conventional load detecting device. [Explanation of symbols] 1 main rope 2 rod 3,10,20 Bracket 4,14 plates 7,23 Displacement measuring device 13 First spring 15 Second spring 21 Linear guide 22 Third spring
Claims (1)
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検出するこ
とによってエレベータかごの荷重を検出するエレベータ
の荷重検出装置において、 前記各ロッドに共通のプレートと前記ロッドとの間に配
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
る直動ガイドとを備え、前記プレートの変位量を検出す
ることによりかごの荷重を検出することを特徴とするエ
レベータの荷重検出装置。Claims: 1. A system comprising: a plurality of main ropes; rods fixed to ends of the main ropes; and a spring provided between the rods and a fixed side. In an elevator load detecting device for detecting a load of an elevator car by detecting, a second spring disposed between a plate common to the rods and the rod, and a second spring interposed between the plates.
A third spring provided between the opposite side of the spring and the fixed side, and a linear motion guide for restricting a moving direction of the plate to one reciprocating direction, and detecting a displacement amount of the plate. A load detecting device for an elevator, wherein the load of the car is detected by the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001192923A JP4135338B2 (en) | 2001-06-26 | 2001-06-26 | Elevator load detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001192923A JP4135338B2 (en) | 2001-06-26 | 2001-06-26 | Elevator load detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003002549A true JP2003002549A (en) | 2003-01-08 |
| JP4135338B2 JP4135338B2 (en) | 2008-08-20 |
Family
ID=19031303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001192923A Expired - Lifetime JP4135338B2 (en) | 2001-06-26 | 2001-06-26 | Elevator load detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4135338B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007308261A (en) * | 2006-05-18 | 2007-11-29 | Mitsubishi Electric Corp | Load detector for elevator |
| JP2008189462A (en) * | 2007-02-08 | 2008-08-21 | Fujitec Co Ltd | Elevator device |
| CN111483897A (en) * | 2019-01-29 | 2020-08-04 | 奥的斯电梯公司 | Lifting rope monitoring device |
-
2001
- 2001-06-26 JP JP2001192923A patent/JP4135338B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007308261A (en) * | 2006-05-18 | 2007-11-29 | Mitsubishi Electric Corp | Load detector for elevator |
| JP2008189462A (en) * | 2007-02-08 | 2008-08-21 | Fujitec Co Ltd | Elevator device |
| CN111483897A (en) * | 2019-01-29 | 2020-08-04 | 奥的斯电梯公司 | Lifting rope monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4135338B2 (en) | 2008-08-20 |
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