JPS63123783A - Elevator load detector - Google Patents
Elevator load detectorInfo
- Publication number
- JPS63123783A JPS63123783A JP26778786A JP26778786A JPS63123783A JP S63123783 A JPS63123783 A JP S63123783A JP 26778786 A JP26778786 A JP 26778786A JP 26778786 A JP26778786 A JP 26778786A JP S63123783 A JPS63123783 A JP S63123783A
- Authority
- JP
- Japan
- Prior art keywords
- operating
- car
- cylinder
- plunger
- load
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、エレベータ−の荷重検出装置に係り。[Detailed description of the invention] [Industrial application field] The present invention relates to an elevator load detection device.
特に検出精度が高く、調整作業を省力化するのに好適な
エレベータ−荷重検出装置に関する。In particular, the present invention relates to an elevator load detection device that has high detection accuracy and is suitable for saving labor in adjustment work.
エレベータ−かご枠とかご床との間に装着した防振用弾
性体の変位を利用して積載荷重を検出する方法は、従来
から多くの提案がなされている。BACKGROUND OF THE INVENTION Many proposals have been made in the past for methods of detecting a live load by utilizing the displacement of a vibration-isolating elastic body installed between an elevator car frame and a car floor.
例えば、その変位を機械的スイッチにより検出する方法
がある。（実公開昭５３−１２７４６７）この方法は、
スイッチを直接動作させる為、簡便ではあるが、かご内
荷重のアンバランス、かご枠とかご床とにある摩擦等の
為、必ずしもスイッチ設置部分が荷重に比例して変位す
るとは限らず、検出精度はあまり高いとはいえない。又
、検出個所を増やし、各弾性体の近傍にスイッチをｉ２
置する等して１弾性体の変位を極力正確にとらえ、各ス
イッチを動作させる工夫もされているが個々の弾性体の
変位量が、荷重の位置や、かご枠とかご床との摩擦の影
響で必ずしも一定とはならず、各スイッチの動作点、即
ち検出点にばらつきが出ていた。For example, there is a method of detecting the displacement using a mechanical switch. (Released Publication No. 53-127467) This method is
Since the switch is operated directly, it is simple, but due to unbalance of the load inside the car, friction between the car frame and the car floor, etc., the part where the switch is installed does not necessarily displace in proportion to the load, and the detection accuracy may be affected. cannot be said to be very high. In addition, the number of detection points is increased, and a switch is installed near each elastic body.
Efforts have been made to operate each switch by capturing the displacement of one elastic body as accurately as possible, but the amount of displacement of each elastic body depends on the position of the load and the friction between the car frame and the car floor. As a result, the operating points of each switch, that is, the detection points, were not always constant.
又、この種荷重検出装置の調整は乗かとにテストウエー
トを積込む人とかご床下でスイッチをセットする人と常
に２人作業となる上、必ず最下階で調整作業をしなけれ
ばならない等の制約があった。In addition, adjustment of this type of load detection device always requires two people: one to load the test weight into the car and one to set the switch under the car floor, and the adjustment must always be done on the lowest floor. There were restrictions.
本発明の目的は、これらの欠点を改善し、高精度で、か
つ１人作業で調整できるエレベータ−の荷重検出装置を
提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to improve these drawbacks and provide an elevator load detection device that is highly accurate and can be adjusted by one person.
かご床下に装着する複数個の弾性体は、その変位量がか
ご床に加わる荷重の積載位置や、かご枠とかご床との間
に発生する摩擦力の存在位置等の諸条件によって、各々
異なった値を示すが、各弾性体の変位量の総和は、常に
積載荷重に比例する。The amount of displacement of the multiple elastic bodies installed under the car floor varies depending on various conditions such as the loading position of the load applied to the car floor and the position of frictional force generated between the car frame and the car floor. However, the sum of the displacements of each elastic body is always proportional to the live load.
従って検出精度を上げるには、弾性体の変位量の総和を
検出することで達成できる。Therefore, detection accuracy can be improved by detecting the total amount of displacement of the elastic body.
又、従来、調整作業検出スイッチが床下にある為、テス
トウエートを積込む人と、スイッチを調整する人の２人
作業が必要であったが１本発明ではスイッチをかご内に
設置することにより、テストウエートを積込む人が規定
のウエートを積込んだ時点で、スイッチの動作点をかご
内から調整出来る為、１人作業が可能となる。In addition, in the past, the adjustment work detection switch was located under the floor, which required two people: one to load the test weights and one to adjust the switch, but in the present invention, the switch is installed inside the car. Once the person loading the test weights has loaded the specified weights, the operating point of the switch can be adjusted from inside the car, making it possible for one person to do the work.
本発明の概念図を第１図に示す。 A conceptual diagram of the present invention is shown in FIG.
かご床１の下にシリンダー３に装着したプランジャー４
を、弾性体２（本図では図示せず）の変位でかご床１が
下る時に抑圧ストロークする様に当接せしめ、各シリン
ダー３の出口は、パイプ５でお互いに接続し、シリンダ
ー３．パイプ５．及び中間ＢＯＸＳ内に油を充填した装
置とこの中間ＢＯＸ６から作動用パイプ７を引出し、こ
の先端に内部油圧でストロークする作動用シリンダー８
と作動用プランジャー９、及びこの動作用プランジャー
９に取付けた作動カム１０により動作するスイッチ１１
を設けることにより、変位の総和を検出することができ
る。Plunger 4 attached to cylinder 3 under car floor 1
are brought into contact so as to make a suppressing stroke when the car floor 1 is lowered by the displacement of an elastic body 2 (not shown in this figure), and the outlets of each cylinder 3 are connected to each other by a pipe 5, and the cylinders 3. Pipe 5. and a device in which the intermediate BOXS is filled with oil, and an operating pipe 7 pulled out from this intermediate BOX 6, and an operating cylinder 8 that is stroked by internal hydraulic pressure at the tip thereof.
and an operating plunger 9, and a switch 11 operated by an operating cam 10 attached to the operating plunger 9.
By providing this, the total sum of displacements can be detected.
又１作動カム１０とスイッチ１１を作動用パイプ７でか
ご内に案内しかご内から調整できる位置に取付けること
により調整作業が１人で可能となる。Further, by guiding the operating cam 10 and the switch 11 into the car using the operating pipe 7 and mounting them at positions where they can be adjusted from within the car, adjustment work can be performed by one person.
以下１本発明の一実施例を第２図〜第４図にて説明する
。An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.
第１図はかと床を正面図、第２図は、本発明の装置を取
付けたかご床の断面図、第３図は、検出スイッチ部の拡
大図を示す、各弾性体２の近くにかご床１と同じく変位
する作動用金具１２を設け、これにプランジャー４を当
接しておくことにより。Fig. 1 is a front view of the foot and floor, Fig. 2 is a sectional view of the car floor on which the device of the present invention is installed, and Fig. 3 is an enlarged view of the detection switch section. By providing an operating metal fitting 12 that is displaced in the same way as the floor 1, and by keeping the plunger 4 in contact with this metal fitting 12.
それぞれの弾性体２の変位、即ちかご床１の各部の変位
量をプランジャー４の押下げ量に変換する。The displacement of each elastic body 2, that is, the amount of displacement of each part of the car floor 1, is converted into the amount of depression of the plunger 4.
一方、シリンダー３は、お互いにパイプ５で接続し、こ
れらのパイプ５を中間ＢＯＸ６に集めると共に、そこか
ら、作動パイプ７を引出し、その先端は作動用シリンダ
ー８に接続しである。又、作動用シリンダー８の作動用
プランジャー９に取付けられた作動カム１０が所定の位
置にストロークした時動作するスイッチ１１を具備して
いる。On the other hand, the cylinders 3 are connected to each other by pipes 5, and these pipes 5 are collected in an intermediate box 6, from which an operating pipe 7 is drawn out, and its tip is connected to an operating cylinder 8. It is also provided with a switch 11 that is activated when the actuating cam 10 attached to the actuating plunger 9 of the actuating cylinder 8 is stroked to a predetermined position.
そして、シリンダー３．パイプ５．中間ＢＯＸ６、作動
用パイプ７及び作動用シリンダー８は総て油１３で満し
である。尚、バネ１４は１作動カム１０の復帰用の引張
りバネである。And cylinder 3. Pipe 5. The intermediate box 6, the operating pipe 7, and the operating cylinder 8 are all filled with oil 13. Note that the spring 14 is a tension spring for returning the one-operation cam 10.
今、かご床１に荷重が積載されると、荷重の積載位置や
、かご枠とかご床との間に発生する摩擦力の存在位置の
関係で、各弾性体２の変位量は一定とならず、Ｘｌ 、
！！・・・川ｘｆｉとばらつき、がご床１の変位を伝え
る作動金具１２を通してプランジャー４はそれぞれＸｌ
、Ｘ＠・・・・・・Ｘｎだけストロークする。この為、
各シリンダー３内の油１３が、その変位量に比例してパ
イプ５．中間ＢＯＸ６を通って、押出され、ここから引
出された作動パイプ７内の油を押出し、作動シリンダー
８にある作動プランジャー９及びこれに装着された作動
カム１０を動作せしめる。この作動カム１０のストロー
クＨは、シリンダー３１作動シリンダー８の内径をＤｓ
ｔ Ｄ２ ｇ積載荷重Ｗによる各プランジャー４のス
トロークをＸｉ ｌ Ｘ２・・・・・・ＸＮ とすると
、
で表わされる。又１弾性体２の設置個数をＮ、バネ常数
をＱｋｇ／ｎ＋ｍとすると
となり■と０式より
で表わされる。ここで、
Ｑ、Ｎ、Ｄｘ ｔ Ｄｚはあらかじめ決められた値。Now, when a load is loaded on the car floor 1, the amount of displacement of each elastic body 2 is constant depending on the load loading position and the position of the frictional force generated between the car frame and the car floor. Z,Xl,
! ! ...The plunger 4 is moved through the actuating metal fitting 12 which transmits the displacement of the floor 1, and the plunger 4 is
, X@... Stroke by Xn. For this reason,
The oil 13 in each cylinder 3 moves into the pipe 5 in proportion to its displacement. The oil in the operating pipe 7 that is pushed out through the intermediate box 6 and drawn out from there is pushed out to operate the operating plunger 9 in the operating cylinder 8 and the operating cam 10 attached thereto. The stroke H of this operating cam 10 is the inner diameter of the cylinder 31 operating cylinder 8 Ds
t D2 g If the stroke of each plunger 4 due to the live load W is defined as Xi l X2...XN, it is expressed as follows. Further, if the number of installed elastic bodies 2 is N, and the spring constant is Qkg/n+m, then it is expressed by the following equation. Here, Q, N, Dx t Dz are predetermined values.
即ち常数であり、作動カム１０のストロークＨは。That is, it is a constant, and the stroke H of the operating cam 10 is.
積載荷重Ｗに比例する。従って、無負荷時の作動カム１
０の位置からＨｍ＋ｍだけストロークした時、動作する
様にスイッチ１１をｍｆｉしておくことにより、かご床
１の積載荷重を検出することが出来る。It is proportional to the live load W. Therefore, operating cam 1 at no load
The live load on the car floor 1 can be detected by setting the switch 11 to mfi so that it operates when the car moves by Hm+m from the 0 position.
本実施例では、検出スイッチ１１を１個より示していな
いがスイッチを増し１作動カムを追加し、それぞれの動
作まで間隔をＨｚ 、Ｈｚ・・・・・・Ｈｌ、に調整セ
ットすることで積載荷重Ｗｌ 、Ｗｚ・・・・・・Ｗｎ
と何点もの値を検出することが出来る。In this embodiment, although one detection switch 11 is not shown, the number of switches is increased and one operating cam is added, and the intervals between each operation are adjusted and set to Hz, Hz...Hl, etc., to load the load. Load Wl, Wz...Wn
It is possible to detect many values.
又、ここではスイッチを調整する様に述べたが作動カム
を調整しても同じ効果を得ることが出来る。Also, although we have described adjusting the switch here, the same effect can be obtained by adjusting the operating cam.
又１本実施例では、検出スイッチ１１をエレベータ−乗
かどの側面下部に垂直に取付けた例で図示したが、作動
パイプ７の引廻し方法は自由であり取付位置や取付向き
は任意に選べ９例えばかご内運転盤内に水平方向に取付
は組込むことも出来る。In addition, in this embodiment, the detection switch 11 is installed vertically at the lower side of the elevator corner, but the operating pipe 7 can be routed freely, and the installation position and installation direction can be selected as desired. For example, it can be installed horizontally inside the car operation panel.
本発明の荷重検出装置によれば、荷重の積載位置や、か
ご枠とかご床との間に発生する摩擦力の存在位置等によ
り、ばらついている各弾性体の変位量を、総て積算した
総合変位量で検出している為、各弾性体、個々の変位で
検出していた従来の荷重検出装置より高精度に積載荷重
を検出することが出来る。又、シリンダー３と作動シリ
ンダー８との内径の比Ｄｚ／Ｄ２を適当に選定すること
により１弾性体の変位を作動カムの所で任意の倍率に拡
大することが出来（式■参照）調整が容易となる。According to the load detection device of the present invention, the amount of displacement of each elastic body, which varies depending on the loading position of the load, the position of the frictional force generated between the car frame and the car floor, etc., can be integrated. Since it detects the total amount of displacement, it can detect the live load with higher accuracy than conventional load detection devices that detect the displacement of each elastic body individually. In addition, by appropriately selecting the ratio Dz/D2 of the inner diameters of the cylinder 3 and the operating cylinder 8, the displacement of one elastic body can be magnified to an arbitrary magnification at the operating cam (see formula (■)). It becomes easier.
又、従来、検出スイッチ１１をかご床下に設けている為
、調整作業は最下階に限定される上、テストウエートを
積込む人と、かご床下の検出スイッチ調整者の２名の作
業者が必要であったが、検出スイッチ部をかご内から調
整可能な位置に設置したことにより、任意の階で、しか
もテストウエートを積込んだ後、同一人がスイッチ部の
調整をかご内から行えるので１人作業が可能となる。Furthermore, since the detection switch 11 was conventionally installed under the car floor, adjustment work was limited to the lowest floor, and required two workers: the person loading the test weights and the person adjusting the detection switch under the car floor. However, by installing the detection switch in a position where it can be adjusted from inside the car, the same person can adjust the switch from inside the car at any floor and after loading the test weights. Allows one person to work.
第１図は本発明の概念図、第２図は本発明の一実施例で
かご法平面図、第３図は第２図のかご床の断面図、第４
図は第３図の検出スイッチ部の拡大図である。
１・・・エレベータ−かご床、２・・・弾性体、３・・
・シリンダー、８・・・作動用シリンダー、１ｏ・・・
作動カム、１１・・・検出用スイッチ。Fig. 1 is a conceptual diagram of the present invention, Fig. 2 is a car plan view of an embodiment of the invention, Fig. 3 is a sectional view of the car floor shown in Fig. 2, and Fig. 4 is a sectional view of the car floor in Fig.
The figure is an enlarged view of the detection switch section of FIG. 3. 1...Elevator-car floor, 2...Elastic body, 3...
・Cylinder, 8... Operating cylinder, 1o...
Operating cam, 11...detection switch.
Claims (1)
、前記かご枠とかご床との間に弾性体を介在させ、かご
床に加わる荷重による弾性体の撓み量を利用して荷重を
検出するエレベーターの荷重検出装置において、１各弾
性体の変位によりシリンダーに装置したプランジャーが
ストロークできる様にかご床下面にプランジャー頭部を
当接配置し、各シリンダーの出口はシリンダー内も含め
て油を満たしたパイプにより中間の集合ＢＯＸでお互い
に接続され、この集合ＢＯＸから引出された作動パイプ
の先端に作動シリンダー、作動プランジャー及びこれに
取付けられた作動カムとを具備し、この作動カムで動作
する検出スイッチを設けたことを特徴とするエレベータ
ー荷重検出装置。 ２、特許請求の範囲第１項において、 作動シリンダー、作動プランジャー、作動カム及び検出
スイッチをエレベーターかご内から調整可能な位置に取
付けたことを特徴とするエレベーター荷重検出装置。[Claims] 1. A car floor is disposed within a car frame suspended by a hoisting rope, and an elastic body is interposed between the car frame and the car floor, so that the elastic body can be adjusted by the load applied to the car floor. In an elevator load detection device that detects the load using the amount of deflection of the elevator, 1. the plunger head is arranged in contact with the underside of the car floor so that the plunger installed in the cylinder can stroke due to the displacement of each elastic body; The outlets of each cylinder, including the inside of the cylinder, are connected to each other by an oil-filled pipe in an intermediate collecting box, and the operating cylinder, operating plunger, and an operating plunger are attached to the tip of the operating pipe pulled out from this collecting box. An elevator load detection device comprising: an operating cam; and a detection switch operated by the operating cam. 2. The elevator load detection device according to claim 1, characterized in that an actuation cylinder, an actuation plunger, an actuation cam, and a detection switch are mounted at adjustable positions from within the elevator car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26778786A JPS63123783A (en) | 1986-11-12 | 1986-11-12 | Elevator load detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26778786A JPS63123783A (en) | 1986-11-12 | 1986-11-12 | Elevator load detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63123783A true JPS63123783A (en) | 1988-05-27 |
Family
ID=17449582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26778786A Pending JPS63123783A (en) | 1986-11-12 | 1986-11-12 | Elevator load detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63123783A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020070135A (en) * | 2018-10-30 | 2020-05-07 | 株式会社日立製作所 | Elevator balance device structure |
-
1986
- 1986-11-12 JP JP26778786A patent/JPS63123783A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020070135A (en) * | 2018-10-30 | 2020-05-07 | 株式会社日立製作所 | Elevator balance device structure |
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