JPH05246644A - Elevator car load detection device - Google Patents
Elevator car load detection deviceInfo
- Publication number
- JPH05246644A JPH05246644A JP4050905A JP5090592A JPH05246644A JP H05246644 A JPH05246644 A JP H05246644A JP 4050905 A JP4050905 A JP 4050905A JP 5090592 A JP5090592 A JP 5090592A JP H05246644 A JPH05246644 A JP H05246644A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- detection
- car
- spring
- car 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は主索の長さ変化を利用
したエレベータのかご荷重検出装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car load detecting device for an elevator utilizing a change in length of a main rope.
【０００２】[0002]
【従来の技術】図５、図６を参照して従来のエレベータ
かご荷重検出装置を説明する。2. Description of the Related Art A conventional elevator car load detection device will be described with reference to FIGS.
【０００３】乗客や積載荷物を乗せたかご１はかごのた
て枠２、下梁３、上梁４等よりなるかご枠により支えら
れている。かご側の上梁４上面にはかごを吊下げる主索
６を引止めるための引止板５が固定している。A car 1 carrying passengers and loaded luggage is supported by a car frame composed of a car vertical frame 2, a lower beam 3 and an upper beam 4. A retaining plate 5 for retaining the main rope 6 for suspending the car is fixed to the upper surface of the upper beam 4 on the car side.
【０００４】複数本の主索６は、その端末に引止具７を
取付け、これを引止板５に連結してかごを吊り下げてい
る。なお、引止具７は主索６の端末にロープソケットを
介して固定し、引止具７は引止板５に設けた穴５ａにそ
の先端ロッドを非接触に貫通して、その先にばね受９で
受止めた圧縮ばね８を引止板５に突っ張ってかごを吊下
げている。A plurality of main ropes 6 are attached with detents 7 at their ends and are connected to the detent plate 5 to suspend the car. The detent 7 is fixed to the end of the main rope 6 via a rope socket, and the detent 7 penetrates the tip rod of the detent plate 5 in a hole 5a provided in the detent plate 5 in a non-contact manner, The compression spring 8 received by the spring receiver 9 is stretched on the retaining plate 5 to suspend the car.
【０００５】また複数本の引止具７のロッドの中間、引
止板５の上方に２組のナット１２、バネザ１３により、
検出板１４を固定し、この検出板１４のほぼ中央（複数
本の引止具７の図心）に設けた穴１４ａを貫通して、差
動変圧器１５の検出用ロッド１５ａを取付け、差動変圧
器１５は取付台１６、ボルト１７等により、かご側の引
止板５に固定している。Further, two sets of nuts 12 and springs 13 are provided in the middle of the rods of the plurality of detents 7 and above the detent plate 5.
The detection plate 14 is fixed, and the detection rod 15a of the differential transformer 15 is attached by penetrating through a hole 14a provided at the substantially center of the detection plate 14 (center of the detents 7). The dynamic transformer 15 is fixed to the car stop plate 5 by a mounting base 16, bolts 17 and the like.
【０００６】かご１の乗客や荷物等により、かごの積載
荷重が変化すると、たて枠２、下梁３、上梁４等のかご
枠及び引止板５を介して、圧縮ばね８に荷重がかかり、
これが撓む。これによりかご側の引止板５と主索側の検
出板７の間隔寸法Ａが変化する。この変化を差動変圧器
１５により検出し、この検出量よりかご１内の積載荷重
を検知する。この値を基にエレベータを駆動する巻上機
に与えるトルクの制御、或いは満員の警報等他の所要の
管制を行う。When the load of the car changes due to passengers or luggage of the car 1, the compression spring 8 is loaded through the car frame such as the vertical frame 2, the lower beam 3, the upper beam 4 and the stop plate 5. Takes a
This bends. As a result, the distance A between the car stop plate 5 and the main rope side detection plate 7 changes. This change is detected by the differential transformer 15, and the load in the car 1 is detected based on the detected amount. Based on this value, the torque applied to the hoisting machine that drives the elevator is controlled, or other required control such as a warning of fullness is performed.
【０００７】[0007]
【発明が解決しようとする課題】ところで、かごを吊り
下げている主索６は複数本（通常３本以上）が使用され
ている。この主索が受け持つ張力は通常均等になるよう
に調整されているが、かごの位置や経年変化等により若
干ではあるが次第に変化する。このため、各ばね８の長
手方向の寸法Ｂ1 、Ｂ2 が必ずしも同じ値にならなくな
り、検出板１４は上下に曲げられることになる。これに
より、検出板は、引止具により曲げを受け無理な荷重を
受けることになる。また、この検出板が変形することに
より複数本ある主索の張力の平均を差動変圧器により検
出出来なくなるために荷重検出の精度が低下する問題が
ある。By the way, a plurality of main ropes 6 (usually three or more) are used to suspend the car. The tension of the main ropes is usually adjusted to be equal, but changes slightly but gradually depending on the position of the car and changes over time. For this reason, the longitudinal dimensions B 1 and B 2 of the springs 8 do not necessarily become the same value, and the detection plate 14 is bent up and down. As a result, the detection plate is bent by the detent tool and receives an unreasonable load. Further, since the detection plate is deformed, the average of the tensions of a plurality of main ropes cannot be detected by the differential transformer, so that there is a problem that the load detection accuracy is reduced.
【０００８】本発明はこのような主索６に生じる張力の
不均衡によって生じる荷重検出の誤差を低減することを
目的とする。An object of the present invention is to reduce an error in load detection caused by such a tension imbalance in the main ropes 6.
【０００９】[0009]
【課題を解決するための手段】上記の目的達成のため、
引止具７と検出板１４の固定部分に連結用の圧縮ばねの
1/10〜1/100程度のばね定数を有するばねを介して、検
出板を浮動状に取付ける。[Means for Solving the Problems] To achieve the above object,
The fixed portion of the detent 7 and the detection plate 14 is provided with a compression spring for connection.
The detection plate is mounted in a floating manner via a spring having a spring constant of about 1/10 to 1/100.
【００１０】[0010]
【作用】検出板が引止具のロッドに浮動状に取付いてい
るので、複数本の主索からの不均衡な張力による無理な
力を平均かし、検出板の変形を防止して、主索の長さ変
化を正確に検知する。[Operation] Since the detection plate is attached to the rod of the detent in a floating manner, the excessive force due to the unbalanced tension from multiple main ropes is averaged to prevent the detection plate from deforming, Accurately detect changes in cable length.
【００１１】[0011]
【実施例】図１及び図２に示す実施例に基づき本発明を
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on the embodiments shown in FIGS.
【００１２】かご１をかご枠によって保持し、かご枠上
梁４の上面に引止板５を固定する。複数本の主索６によ
り引止板５を介してかご１を吊り下げる。The car 1 is held by a car frame, and the detent plate 5 is fixed to the upper surface of the car frame upper beam 4. The car 1 is suspended by the plurality of main ropes 6 via the retaining plate 5.
【００１３】即ち、主索の引止具７の先端のロッド部を
引止板５の穴５ａの中を非接触で貫通させ、引止板５よ
り先に圧縮ばね８を差し込み、ばね受け９、平座１０、
ダブルナット１１により引止板５に押付けて、主索を引
止板５に連結する。That is, the rod portion at the tip of the detent 7 of the main rope is passed through the hole 5a of the detent plate 5 in a non-contact manner, the compression spring 8 is inserted before the detent plate 5, and the spring receiver 9 is inserted. , Flat seat 10,
The main rope is connected to the stop plate 5 by pressing it against the stop plate 5 with the double nut 11.
【００１４】このようにした引止具７のロッド部に一端
を解放した開放穴２２ａを持つ、Ｊ字状に形成した板ば
ね２２を固定し、この板ばねに検出板１４を取付ける。
これにより、検出板１４をロッドに対して浮動状に取付
けることになる。検出板１４の大きさは複数本の引止具
７、７…の内側に配置し、引止具７が検出板１４を貫通
しないで済むようにする。A J-shaped leaf spring 22 having an open hole 22a whose one end is opened is fixed to the rod portion of the detent tool 7 thus constructed, and the detection plate 14 is attached to this leaf spring.
As a result, the detection plate 14 is attached to the rod in a floating manner. The size of the detection plate 14 is arranged inside the plurality of detents 7 so that the detent 7 does not penetrate the detection plate 14.
【００１５】この浮動状に取付けられた検出板１４に差
動変圧器１５の検出ロッドを取付ける。The detection rod of the differential transformer 15 is attached to the detection plate 14 mounted in a floating manner.
【００１６】前記の板ばね２２は連結用圧縮ばね８のば
ね定数に比し1/10〜1/100程度のばね定数のものとす
る。このようにしておくと主索６、６…に生じる張力の
不均衡によるＢ1 、Ｂ2 寸法の不同は、不均衡荷重より
も非常に小さくなる（1/10〜1/100くらい）。これによ
り検出板の変形、撓みを防止することができる。The leaf spring 22 has a spring constant of about 1/10 to 1/100 of the spring constant of the connecting compression spring 8. By doing so, the disparity in B 1 and B 2 dimensions due to the imbalance of tensions generated in the main ropes 6, 6 ... Is much smaller than the imbalance load (about 1/10 to 1/100). This can prevent the detection plate from being deformed or bent.
【００１７】また、主索６の張力の変化により検出板１
４には傾きが生じるが、これは各引止具の図心位置付近
に差動変圧器を設ける事により、張力の平均を検出でき
る。このように検出板１４を引止具７に対してばねを介
して取付ける事により主索６の張力の不均衡によって生
じる検出誤差を低減できる。Further, the change in the tension of the main rope 6 causes the detection plate 1 to change.
4 has a tilt, which can be detected by providing a differential transformer near the centroid position of each detent. By thus attaching the detection plate 14 to the detent 7 via the spring, it is possible to reduce the detection error caused by the imbalance of the tension of the main ropes 6.
【００１８】なお、板ばね２２を開放穴２２ａを利用し
て取付けるようにしているので、引止具７を引止板５に
取付後に取付けでき、これらの組立て作業が容易であ
る。Since the leaf spring 22 is attached using the open hole 22a, the detent 7 can be attached after attaching to the detent plate 5, and the assembling work thereof is easy.
【００１９】本発明の他の実施例を図３、４を参照して
説明する。Another embodiment of the present invention will be described with reference to FIGS.
【００２０】引止板５の上方に、平行して検出板を設け
る。検出板１４の取付方法は前記引止具７のロッド部に
２個の圧縮ばね１９及び２個の止め輪１８を差込み、前
記上下のばね１９、１９で検出板１４を浮動状に挟み、
前記ばねの両端末の止め輪１８により適当な予圧を加
え、止め輪１８のロックナット２１止めねじ２０で締付
け、引止具に固定する。A detection plate is provided in parallel above the retaining plate 5. The detection plate 14 is attached by inserting two compression springs 19 and two retaining rings 18 into the rod portion of the detent 7 and sandwiching the detection plate 14 between the upper and lower springs 19 and 19 in a floating manner.
Appropriate preload is applied by the retaining rings 18 at both ends of the spring, and a lock nut 21 of the retaining ring 18 is tightened with a set screw 20 to fix the retaining ring to the detent.
【００２１】検出板１４の略々中央に設けた穴を通して
検出用ロッド１５ａを取付け、差動変圧器１５を取付板
１６、ボルト１７により引止板５に固定する。A detection rod 15a is attached through a hole provided substantially in the center of the detection plate 14, and the differential transformer 15 is fixed to the detent plate 5 with a mounting plate 16 and bolts 17.
【００２２】本実施例は板ばねの代わりにコイルばねを
用いたものであるが、組立てに上記の場合より多少のや
り憎さがあるが、ばねの精度、信頼性の点での扱いやす
さがある。In this embodiment, a coil spring is used in place of the leaf spring, but the assembly is a little more difficult than the above case, but it is easy to handle in terms of accuracy and reliability of the spring. There is.
【００２３】[0023]
【発明の効果】本発明により測定器の検出板を引止具に
対してばねを介して浮動状に取付けることにより、主索
の張力の不均衡によって生じる検出誤差を低減すること
ができ、エレベータ制御の信頼性が向上する。According to the present invention, the detection plate of the measuring instrument is attached to the detent device in a floating manner via a spring, so that the detection error caused by the imbalance of the tension of the main rope can be reduced, and the elevator can be reduced. Control reliability is improved.
【図１】本発明によるエレベータかご荷重検出装置の正
面図、FIG. 1 is a front view of an elevator car load detection device according to the present invention,
【図２】図１の平面図、FIG. 2 is a plan view of FIG.
【図３】本発明の他の実施例の正面図、FIG. 3 is a front view of another embodiment of the present invention,
【図４】図３の平面図である。FIG. 4 is a plan view of FIG.
【図５】従来のかごの斜視図、FIG. 5 is a perspective view of a conventional car,
【図６】従来のかご荷重検出装置の正面図である。FIG. 6 is a front view of a conventional car load detection device.
１…かご ３…かご枠下梁 ４…かご枠上梁 ５…引止板 ６…主索 ７…引止具（シャックルロッド） ８…引止具連結用の圧縮ばね １４…検出板 １５…差動変圧器 １８…止め輪 １９、２２…検出板取付用のばね DESCRIPTION OF SYMBOLS 1 ... Car 3 ... Car frame lower beam 4 ... Car frame upper beam 5 ... Rest plate 6 ... Main rope 7 ... Rest stop (shackle rod) 8 ... Compression spring for connecting restraint 14 ... Detection plate 15 ... Difference Dynamic transformer 18 ... Retaining ring 19, 22 ... Spring for mounting detection plate
Claims (2)
用圧縮ばねを介してかご側の引止板に連結し、更に前記
引止板と間隔をおいて、前記検出板をロッドに固定し、
前記引止板と前記検出板との間隔寸法変化により、かご
荷重変化を検知するエレベータかご荷重検出装置におい
て、 取付用の開放穴を有する板ばねを前記ロッドに固定し、
この板ばねに前記検出板を取付けたことを特徴とするエ
レベータかご荷重検出装置。Claim: What is claimed is: 1. A front rod portion of a rope retaining device for a main rope is connected to a car-side retaining plate via a connecting compression spring, and the detecting plate is connected to the retaining plate at a distance. Fixed to
In an elevator car load detection device that detects a change in car load by a change in the distance between the detent plate and the detection plate, a leaf spring having an opening hole for mounting is fixed to the rod,
An elevator car load detection device in which the detection plate is attached to the plate spring.
ばねにより検出板を挟んで前記ロッドに取付けたことを
特徴とするエレベータかご荷重検出装置。2. The elevator car load detection device according to claim 1, wherein the detection plate is attached to the rod by sandwiching the detection plate by two compression springs instead of the plate spring.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4050905A JP3050988B2 (en) | 1992-03-09 | 1992-03-09 | Elevator car load detector |
| TW081106932A TW201292B (en) | 1992-03-09 | 1992-09-01 | Cage load weight detecting device for lift |
| KR1019920016009A KR930019539A (en) | 1992-03-09 | 1992-09-03 | Elevator cage load detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4050905A JP3050988B2 (en) | 1992-03-09 | 1992-03-09 | Elevator car load detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05246644A true JPH05246644A (en) | 1993-09-24 |
| JP3050988B2 JP3050988B2 (en) | 2000-06-12 |
Family
ID=12871780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4050905A Expired - Lifetime JP3050988B2 (en) | 1992-03-09 | 1992-03-09 | Elevator car load detector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3050988B2 (en) |
| KR (1) | KR930019539A (en) |
| TW (1) | TW201292B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100365315B1 (en) * | 2000-03-24 | 2002-12-18 | 호성엘리베이터(주) | Load measurement device of elevator |
| CN103072868A (en) * | 2011-10-25 | 2013-05-01 | 康力电梯股份有限公司 | Elevator overload detection method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5232390B2 (en) * | 2007-01-22 | 2013-07-10 | 東芝エレベータ株式会社 | Elevator load detection device |
| CN103072867A (en) * | 2011-10-25 | 2013-05-01 | 康力电梯股份有限公司 | Overload warning device |
-
1992
- 1992-03-09 JP JP4050905A patent/JP3050988B2/en not_active Expired - Lifetime
- 1992-09-01 TW TW081106932A patent/TW201292B/en not_active IP Right Cessation
- 1992-09-03 KR KR1019920016009A patent/KR930019539A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100365315B1 (en) * | 2000-03-24 | 2002-12-18 | 호성엘리베이터(주) | Load measurement device of elevator |
| CN103072868A (en) * | 2011-10-25 | 2013-05-01 | 康力电梯股份有限公司 | Elevator overload detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR930019539A (en) | 1993-10-18 |
| TW201292B (en) | 1993-03-01 |
| JP3050988B2 (en) | 2000-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2271327C2 (en) | Load lifting apparatus for cable lifts with built-in load measurement devices | |
| US5600104A (en) | Load cell having reduced sensitivity to non-symmetrical beam loading | |
| DE60122585T2 (en) | WEIGHT SENSOR FOR ELEVATOR | |
| JP5232390B2 (en) | Elevator load detection device | |
| DE10144913B4 (en) | Elevator brake load weighing system | |
| CN101666739A (en) | Test device and test method of bonding strength | |
| CN100366519C (en) | Elevator load weighing device | |
| RU2318718C2 (en) | Test lever | |
| JPH05246644A (en) | Elevator car load detection device | |
| US3176510A (en) | Wire line strain gauge | |
| WO2012069691A1 (en) | Arrangement and method for testing the load-supporting capability of a lifting fixture | |
| WO2003002445A1 (en) | Load detector of elevator | |
| JPWO2002038480A1 (en) | Elevator car side load detector | |
| EP1109734B1 (en) | Elevator arrangement for setting the starting torque of the motor of an elevator machinery | |
| EP1464607A1 (en) | LOAD DETECTION DEVICE AND CONTROL METHOD THEREFOR, AND ELEVATOR DEVICE | |
| JP4806138B2 (en) | Elevator main rope detent device | |
| JPS5917478A (en) | Method of inspecting balance device for elevator | |
| JPS63117886A (en) | Balance device for elevator | |
| JPH07323976A (en) | Adjusting device for length and tension of elevator main rope | |
| JP2000351538A (en) | Scale device for elevator | |
| US6916998B2 (en) | Weight measuring device and person weight measuring equipment including the weight measuring device | |
| JPS59116361U (en) | elevator weighing device | |
| JP4298537B2 (en) | Elevator scale equipment | |
| JPH0731142Y2 (en) | Load cell type suspension scale | |
| KR20230137997A (en) | pussy system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080331 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090331 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090331 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100331 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100331 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110331 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120331 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |