JPH0687598A - Load elevating device - Google Patents
Load elevating deviceInfo
- Publication number
- JPH0687598A JPH0687598A JP24015792A JP24015792A JPH0687598A JP H0687598 A JPH0687598 A JP H0687598A JP 24015792 A JP24015792 A JP 24015792A JP 24015792 A JP24015792 A JP 24015792A JP H0687598 A JPH0687598 A JP H0687598A
- Authority
- JP
- Japan
- Prior art keywords
- lifting
- load
- lowering
- speed
- brake
- 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
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、平行四辺形リンク式の
リンク機構を用いた負荷昇降装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load lifting device using a parallelogram link type link mechanism.
【0002】[0002]
【従来の技術】従来の負荷昇降装置について、図5,図
6を用いて説明する。この種の負荷昇降装置の昇降機構
1は昇降駆動用のモータ4と歯車機構5により昇降駆動
され、昇降機構1は旋回機構2を介して天井或いは床面
に固定される。また、昇降機構1の先端には吊具7が設
けられ負荷6が吊られている。さらに作業者が昇降機構
1に対して昇降速度を指令するために速度指令器9の操
作レバー10が設けられており、速度指令器9からの速
度指令信号Sは演算部11のV/F変換部12でパルス
変換し目標カウンタ13に入力され、昇降機構1の目標
位置として位置演算部18に入力される。2. Description of the Related Art A conventional load lifting device will be described with reference to FIGS. The lifting mechanism 1 of this type of load lifting device is lifted and lowered by a lifting drive motor 4 and a gear mechanism 5, and the lifting mechanism 1 is fixed to a ceiling or floor through a turning mechanism 2. A lifting tool 7 is provided at the tip of the lifting mechanism 1 to hang the load 6. Further, an operating lever 10 of the speed command device 9 is provided in order for the operator to command the ascending / descending speed to the elevating mechanism 1, and the speed command signal S from the speed command device 9 is subjected to V / F conversion of the calculation unit 11. The pulse is converted by the unit 12 and input to the target counter 13, and is input to the position calculation unit 18 as the target position of the lifting mechanism 1.
【0003】また、昇降駆動用のモータ4には昇降機構
1の速度を検出する速度検出器14と位置を検出する位
置検出器16が設けられ、速度検出器14からの信号は
前記モータ4の駆動装置15に速度帰還信号SFとして
フィードバックされ昇降機構1の速度が制御される。さ
らに位置検出器16からの位置検出信号XFは演算部1
1の現在カウンタ17に入力し、昇降機構1の現在位置
として位置演算部18に入力され、位置演算部18では
前記目標カウンタ13からの目標位置と現在カウンタ1
7からの現在位置を比較演算し、演算結果は昇降機構1
を昇降駆動するためにD/A変換部19でアナログ変換
後、駆動装置15に昇降駆動信号Xとして入力される。
以上のように構成することで従来の負荷昇降装置は速度
指令器9の操作レバー10の操作に従って昇降動作を実
施する。Further, a motor 4 for raising and lowering a drive is provided with a speed detector 14 for detecting the speed of the raising and lowering mechanism 1 and a position detector 16 for detecting a position, and a signal from the speed detector 14 is a signal of the motor 4. The speed feedback signal SF is fed back to the driving device 15 to control the speed of the elevating mechanism 1. Further, the position detection signal XF from the position detector 16 is calculated by the calculation unit 1
1 is input to the current counter 17 and the current position of the lifting mechanism 1 is input to the position calculation unit 18. In the position calculation unit 18, the target position from the target counter 13 and the current counter 1 are input.
The current position from 7 is compared and calculated, and the calculation result is the lifting mechanism 1
In order to drive up and down, the D / A converter 19 performs analog conversion, and then is input to the drive device 15 as a vertical drive signal X.
With the above-described configuration, the conventional load elevating / lowering device performs the elevating / lowering operation according to the operation of the operation lever 10 of the speed commander 9.
【0004】[0004]
【発明が解決しようとする課題】従来の負荷昇降装置に
おいては、昇降機構の上昇,下降はモータにて駆動され
るため、作業者の操作により一定の昇降位置で停止させ
ることは可能であるが、その他の動作すなわち昇降機構
本体の旋回,前後,先端部の旋回については自由動作と
なっている。このため、吊荷状態で作業者が吊荷に対し
て作業する力を加えると、吊荷が作業位置から移動し非
常に作業がやり難くなる。In the conventional load lifting apparatus, since the lifting mechanism is driven up and down by the motor, it is possible to stop it at a certain lifting position by the operation of the operator. The other movements, that is, the rotation of the lifting mechanism body, the front-back movement, and the rotation of the tip end are free movements. For this reason, when a worker applies a force to work on the suspended load in the suspended state, the suspended load moves from the work position, which makes it extremely difficult to perform the work.
【0005】このような状態で作業しようとすると、一
旦荷を作業台の上に降ろしてから必要作業を行い次に荷
の姿勢を変更する場合には、昇降動作を行い再度作業台
に荷を下ろし作業を継続させることとなる。When attempting to work in such a state, when the load is once lowered onto the workbench, the necessary work is performed, and then the posture of the load is changed, an elevating operation is performed and the load is reloaded on the workbench. The lowering work will be continued.
【0006】この様に、従来の負荷昇降装置で吊荷のま
ま作業をすると、前記のように荷が移動し、作業のやり
難さと共に、荷の姿勢が勝手に変わることによる危険性
も伴うこととなる。As described above, when a load is lifted by the conventional load elevating device, the load moves as described above, which makes it difficult to carry out the work and involves a risk that the posture of the load is arbitrarily changed. It will be.
【0007】本発明はかかる問題点を解決する為になさ
れたもので、昇降機構の自由動作部分に停止機構を附加
することにより、任意の作業位置において昇降機構を停
止させることができ、非常に作業性のよい負荷昇降装置
を提供する。The present invention has been made in order to solve such a problem, and by adding a stop mechanism to a freely operating portion of the elevating mechanism, the elevating mechanism can be stopped at an arbitrary working position, which is extremely effective. To provide a load lifting device having good workability.
【0008】[0008]
【課題を解決するための手段】前記目的を達成するため
に本発明による負荷昇降装置は、負荷を昇降する負荷昇
降機構と、この昇降機構を駆動する駆動機構と、負荷昇
降機構の位置を検出する位置検出器と、負荷昇降機構の
現在位置をカウントする現在位置カウンタと、作業者が
昇降機構の位置または速度を指令する指令器と、これら
の各出力信号を演算する位置演算部で、負荷昇降機構の
位置と昇降速度を制御する。更に、昇降機構全体を旋回
機構上に搭載し旋回機構にブレーキ機構を設け、また同
様に前後機構及び昇降機構の先端部の旋回機構にもブレ
ーキ機構を設ける。In order to achieve the above object, a load lifting device according to the present invention detects a load lifting mechanism for lifting a load, a driving mechanism for driving the lifting mechanism, and a position of the load lifting mechanism. Position detector, the current position counter that counts the current position of the load lifting mechanism, the command device that the operator commands the position or speed of the lifting mechanism, and the position calculation unit that calculates each of these output signals. Controls the position and speed of the lifting mechanism. Further, the entire lifting mechanism is mounted on the turning mechanism, and the turning mechanism is provided with a brake mechanism. Similarly, the front and rear mechanisms and the turning mechanism at the tip of the raising and lowering mechanism are also provided with brake mechanisms.
【0009】[0009]
【作用】作業者の操作による指令器からの指令信号を目
標値として昇降機構を昇降駆動し、その位置を位置検出
器からの信号により現在カウンタでカウントし、指令器
からの目標値と常時比較制御することで昇降機構の位置
は制御され、作業者の指令に基づいて昇降機構を昇降制
御することができる。[Operation] The elevating mechanism is driven up and down with the command signal from the commander operated by the operator as the target value, and its position is counted by the current counter by the signal from the position detector and constantly compared with the target value from the commander. The position of the elevating mechanism is controlled by controlling, and the elevating mechanism can be controlled to elevate and lower based on a command from the operator.
【0010】さらに、旋回機構に設けたブレーキ機構及
び同様に前後機構及び昇降機構の先端部の旋回機構に設
けたブレーキ機構を動作させることで、昇降機構は任意
の位置で停止させることができる。この結果、昇降機構
は作業者がし易い位置で停止が可能となり、昇降機構に
吊荷状態での作業も非常に楽になり使い易い昇降機構と
することができる。Further, by operating the brake mechanism provided in the turning mechanism and similarly the brake mechanism provided in the front and rear mechanisms and the turning mechanism at the tip of the lifting mechanism, the lifting mechanism can be stopped at any position. As a result, the elevating mechanism can be stopped at a position that is easy for the operator, and work in a suspended state of the elevating mechanism is very easy, and the elevating mechanism can be made easy to use.
【0011】[0011]
【実施例】本発明を図1,図2に示す1実施例を用いて
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to one embodiment shown in FIGS.
【0012】平行リンク式の昇降機構1は旋回機構2を
介して固定ポール3に取付ける。前記昇降機構1は昇降
駆動用のモータ4と歯車機構5で昇降駆動され、先端に
は吊具7が操作箱8を介して設けられ負荷6が吊られ
る。操作箱8には昇降機構1の昇降速度を指令する速度
指令器9の操作レバー10が設けられ、速度指令器9か
らの速度指令信号Sは演算部11のV/F変換部12で
パルス変換され目標カウンタ13に入力される。A parallel link type lifting mechanism 1 is attached to a fixed pole 3 via a turning mechanism 2. The lifting mechanism 1 is driven up and down by a lifting driving motor 4 and a gear mechanism 5, and a lifting tool 7 is provided at the tip through an operation box 8 to hang a load 6. The operation box 8 is provided with an operation lever 10 of a speed command device 9 for instructing an ascending / descending speed of the elevating mechanism 1, and a speed command signal S from the speed command device 9 is pulse-converted by a V / F converter 12 of a calculator 11. And input to the target counter 13.
【0013】前記モータ4には昇降機構1の速度を検出
する速度検出器14が設けられ、速度検出信号SFはモ
ータ4の駆動装置15に入力され昇降機構1は速度制御
される。さらに、昇降機構1の位置を検出する為に位置
検出器16が設けられ、位置検出信号XFは演算部11
の現在カウンタ17に入力される。The motor 4 is provided with a speed detector 14 for detecting the speed of the elevating mechanism 1, and the speed detection signal SF is input to a driving device 15 of the motor 4 to control the speed of the elevating mechanism 1. Further, a position detector 16 is provided to detect the position of the elevating mechanism 1, and the position detection signal XF outputs the position detection signal XF.
Is currently input to the counter 17.
【0014】演算部11の目標カウンタ13からの目標
位置信号と現在カウンタ17からの現在位置信号は位置
演算部18に入力され、位置演算部18では昇降機構1
に対する昇降位置の演算を実施し、D/A変換部19で
アナログ変換された昇降指令Xは昇降機構1の駆動装置
14に入力され昇降機構1を昇降駆動する。The target position signal from the target counter 13 of the calculation unit 11 and the current position signal from the current counter 17 are input to the position calculation unit 18, and the position calculation unit 18 causes the lifting mechanism 1 to move.
The elevation command is calculated, and the elevation command X converted into an analog signal by the D / A converter 19 is input to the drive device 14 of the elevation mechanism 1 to drive the elevation mechanism 1 up and down.
【0015】また、昇降機構1は前後に自由に動作する
よう歯車機構5の可動側の取付部20にスライド機構2
1を持ち、操作箱8は昇降機構1に対して旋回可能なよ
うに旋回機構22を介して取付ける。Further, the slide mechanism 2 is attached to the mounting portion 20 on the movable side of the gear mechanism 5 so that the lift mechanism 1 can freely move back and forth.
1, and the operation box 8 is attached to the elevating mechanism 1 via a revolving mechanism 22 so as to be revolvable.
【0016】また、旋回機構2には昇降機構1の旋回動
作を停止させるようにシリンダー23動作によるブレー
キ機構24を設け、同様にスライド機構21及び操作箱
8の旋回機構22にもシリンダー25,26の動作によ
るブレーキ機構27,28を設ける。このブレーキ機構
24,27,28を操作する操作スイッチ29は操作箱
8に取付けられ、動作スイッチ29からの停止信号Tは
制御部30に入力され、エアーバルブ31,32,33
にバルブの動作信号を出力することでブレーキ機構2
4,27,28のシリンダーを動作させる。Further, the turning mechanism 2 is provided with a brake mechanism 24 by the operation of the cylinder 23 so as to stop the turning operation of the elevating mechanism 1, and similarly, the slide mechanism 21 and the turning mechanism 22 of the operation box 8 also have cylinders 25, 26. The brake mechanisms 27 and 28 for the operation of are provided. An operation switch 29 for operating the brake mechanisms 24, 27, 28 is attached to the operation box 8, a stop signal T from the operation switch 29 is input to the control unit 30, and the air valves 31, 32, 33.
Output the valve operation signal to the brake mechanism 2
Operate 4, 27, 28 cylinders.
【0017】次に、本発明による負荷昇降装置の動作に
ついて説明する。作業者が操作レバー10を操作すると
速度指令器9から速度指令信号Sが演算部11に入力さ
れ、演算部11では作業者による操作レバー10の操作
量の大きさにより駆動装置15に昇降指令信号Xを出力
し、昇降機構1は操作レバー10の操作に従って昇降動
作を行う。Next, the operation of the load lifting device according to the present invention will be described. When the operator operates the operation lever 10, the speed command signal S is input from the speed command device 9 to the calculation unit 11, and the calculation unit 11 sends a lift command signal to the drive device 15 depending on the amount of operation of the operation lever 10 by the worker. X is output, and the elevating mechanism 1 performs the elevating operation according to the operation of the operation lever 10.
【0018】この時、演算部11では速度指令器9から
速度指令信号SをV/F変換部12でパルス変換し、目
標カウンタ13値を連続的に変化させることで昇降機構
1の目標位置を連続的に変化させる。この目標カウンタ
13値と現在カウンタ17値を常時比較することで昇降
機構1の目標位置と現在位置の偏差が得られ、この偏差
を基準としてあるゲイン定数を掛けるような演算を行
う。その結果をD/A変換部19でアナログ変換し、モ
ータ4の駆動装置15に対して昇降指令信号Xとして出
力する。At this time, in the calculation unit 11, the speed command signal S from the speed command unit 9 is pulse-converted by the V / F conversion unit 12, and the value of the target counter 13 is continuously changed to change the target position of the lifting mechanism 1. Change continuously. By constantly comparing the target counter 13 value and the current counter 17 value, the deviation between the target position and the current position of the elevating mechanism 1 is obtained, and a calculation is performed such that a certain gain constant is multiplied based on this deviation. The result is converted into an analog signal by the D / A converter 19, and is output to the drive device 15 of the motor 4 as a lift command signal X.
【0019】演算部11の位置演算部18に入力される
現在カウンタ17値は昇降機構1の現在位置を位置検出
器16で検出し、その位置検出信号XFをカウントした
もので、常時位置演算部18に昇降機構1の現在位置を
与えている。The value of the current counter 17 input to the position calculation unit 18 of the calculation unit 11 is obtained by detecting the current position of the lifting mechanism 1 by the position detector 16 and counting the position detection signal XF. The current position of the lifting mechanism 1 is given to 18.
【0020】演算部11から駆動装置15に対して昇降
指令信号Xが出力されるとモータ4は動作を開始し、昇
降機構1は昇降動作を行う。この時、速度検出器14か
らの速度検出信号SFは駆動装置15にフィードバック
され、昇降機構1は昇降指令信号Xに基づいた速度で制
御される。また、位置検出器16からの位置検出信号X
Fは現在カウンタ17に入力され、位置演算部18に昇
降機構1の現在位置を与える。以上の結果、昇降機構1
に吊られた負荷6は作業者の操作レバー10操作に伴っ
て昇降動作を行い、負荷6を任意の昇降位置へ移動させ
ることがてきる。When the raising / lowering command signal X is output from the arithmetic unit 11 to the driving device 15, the motor 4 starts operating and the raising / lowering mechanism 1 performs the raising / lowering operation. At this time, the speed detection signal SF from the speed detector 14 is fed back to the driving device 15, and the lifting mechanism 1 is controlled at the speed based on the lifting command signal X. Further, the position detection signal X from the position detector 16
F is currently input to the counter 17 and provides the position calculation unit 18 with the current position of the lifting mechanism 1. As a result, the lifting mechanism 1
The load 6 hung up and down moves up and down in accordance with the operation of the operating lever 10 by the operator, and the load 6 can be moved to an arbitrary up and down position.
【0021】この時、作業者が昇降機構1で吊った負荷
6を任意位置に停止させ加工又は組立等の作業を行う場
合、操作箱8の操作スイッチ29を操作することで停止
信号Tが制御部30に入力され、制御部30からは昇降
機構1の自由に動作する部分の各部にブレーキをかける
ため、ブレーキ用バルブ31,32,33に動作信号を
出力することでシリンダー23,25,26が動作し、
ブレーキ機構24,27,28が働き昇降機構1は負荷
6を任意の位置に停止させることができる。At this time, when the operator stops the load 6 suspended by the elevating mechanism 1 at an arbitrary position to perform work such as machining or assembly, the stop signal T is controlled by operating the operation switch 29 of the operation box 8. In order to apply a brake to each part of the freely moving part of the elevating mechanism 1 that is input to the part 30, the control part 30 outputs an operation signal to the brake valves 31, 32, 33 to thereby cause the cylinders 23, 25, 26 to operate. Works,
The brake mechanisms 24, 27, 28 work and the lift mechanism 1 can stop the load 6 at an arbitrary position.
【0022】また、シリンダー23,25,26への加
圧力を下げブレーキ機構24,27,28に働く力を小
さくしたり、ブレーキ機構24,27,28に働く摩擦
力によるブレーキ力を下げることで、完全に停止させず
に自由動作する部分を重くすることもでき、適度力で動
作させたり作業の種類により動作の重さを変更すること
もできる。Further, by reducing the pressure applied to the cylinders 23, 25, 26 to reduce the force acting on the brake mechanisms 24, 27, 28, or by reducing the braking force due to the friction force acting on the brake mechanisms 24, 27, 28. It is also possible to make a freely moving part heavy without completely stopping it, to make it operate with moderate force, and to change the weight of the operation depending on the type of work.
【0023】以上のように、昇降機構1は任意位置でブ
レーキをかけて停止させることが可能となり、昇降機構
1に吊られた負荷6を作業のしやすい位置で停止させる
ことができる。As described above, the elevating mechanism 1 can be braked and stopped at an arbitrary position, and the load 6 suspended by the elevating mechanism 1 can be stopped at a position where it is easy to work.
【0024】以上説明したように、昇降機構は任意の位
置で停止させることができるので、作業者が作業しやす
い位置で負荷を停止させ、停止させると昇降機構はその
位置から動かないため非常に楽に作業ができ、また、吊
った負荷6が停止状態になっているので安全性も向上
し、非常に使いやすい負荷昇降装置が提供できる。 (他の実施例)As described above, since the elevating mechanism can be stopped at any position, the load is stopped at a position where the operator can easily work, and when the load is stopped, the elevating mechanism does not move from that position. Since the work can be done easily and the suspended load 6 is in a stopped state, the safety is improved and a very easy-to-use load lifting device can be provided. (Other embodiments)
【0025】本発明による他の実施例を図3,図4を用
いて説明する。昇降機構1の先端部に設けた操作箱8に
は昇降機構1の各部ブレーキ機構24,27,28に対
応したブレーキ用操作スイッチ29a,29b,29c
が設けられ、夫々の操作スイッチ29a,29b,29
cを操作することで各部ブレーキ機構24,27,28
を独立して制御することができる。また、操作スイッチ
29の他にセレクトスイッチ34を設けることで、各種
のパターンでブレーキ機構24,27,28の動作を制
御することも可能となりより使いやすくなる。Another embodiment according to the present invention will be described with reference to FIGS. The operation box 8 provided at the tip of the elevating mechanism 1 has brake operation switches 29a, 29b, 29c corresponding to the brake mechanisms 24, 27, 28 of the elevating mechanism 1.
Are provided for the respective operation switches 29a, 29b, 29
By operating c, each part of the brake mechanism 24, 27, 28
Can be controlled independently. Further, by providing the select switch 34 in addition to the operation switch 29, it is possible to control the operation of the brake mechanisms 24, 27, 28 in various patterns, and it becomes easier to use.
【0026】[0026]
【発明の効果】以上のように本発明によれば、昇降機構
は任意の位置で停止させることができるので、作業者が
作業しやすい位置で負荷を停止させ、停止させると昇降
機構はその位置から動かないため非常に楽に作業ができ
る。As described above, according to the present invention, since the lifting mechanism can be stopped at any position, the load is stopped at a position where the operator can easily work, and when the load is stopped, the lifting mechanism will move to that position. You can work very easily because it doesn't move.
【0027】さらに、任意の組合わせで昇降機構を停止
させることもでき、より作業者の使いやすい状態とな
る。また、吊った負荷6が停止状態になっているので安
全性も向上し、非常に使いやすい負荷昇降装置が提供で
きる。Furthermore, the raising and lowering mechanism can be stopped in any combination, which makes it easier for the operator to use. In addition, since the suspended load 6 is in a stopped state, safety is improved and a very easy-to-use load lifting device can be provided.
【図1】本発明の第1実施例を示す機構構成図,FIG. 1 is a structural diagram showing a first embodiment of the present invention,
【図2】その制御ブロック図,FIG. 2 is a control block diagram thereof,
【図3】他の実施例を示すブレーキ用操作スイッチの説
明図,FIG. 3 is an explanatory view of a brake operation switch showing another embodiment,
【図4】他の実施例を示すブレーキ用操作スイッチの説
明図,FIG. 4 is an explanatory view of a brake operation switch showing another embodiment,
【図5】従来の実施例の機構構成図,FIG. 5 is a mechanical configuration diagram of a conventional embodiment,
【図6】その制御ブロック図。FIG. 6 is a control block diagram thereof.
1…昇降機構 2,22…旋回機
構 4…モータ 6…負荷 7…吊り具 8…操作箱 9…速度指令器 14…速度検出器 15…駆動装置 16…位置検出器 18…位置演算部 24,27,28
…ブレーキ機構 29,29a,29b,29c…ブレーキ用操作スイッ
チ 30…制御部1 ... Lifting mechanism 2, 22 ... Rotating mechanism 4 ... Motor 6 ... Load 7 ... Lifting tool 8 ... Operation box 9 ... Speed command device 14 ... Speed detector 15 ... Drive device 16 ... Position detector 18 ... Position calculation unit 24, 27, 28
... Brake mechanism 29, 29a, 29b, 29c ... Brake operation switch 30 ... Control unit
Claims (5)
の荷の昇降機構を駆動する電動機による駆動源とその駆
動手段と、昇降機構の位置または速度を検出する検出手
段と、作業者が昇降機構の速度または位置を指令する手
段を持った負荷昇降装置において、昇降機構全体を旋回
可能なように旋回機構に取付け、この旋回機構にブレー
キ機構を設け、作業者が操作を行うことで前記ブレーキ
機構が働き旋回機構がその位置で停止するような停止機
構を有することを特徴とする負荷昇降装置。1. A parallel link type mechanism for lifting and lowering a load, a drive source by an electric motor for driving the lifting and lowering mechanism of the load and its driving means, a detecting means for detecting the position or speed of the lifting mechanism, and an operator. In a load lifting device having means for commanding the speed or position of the lifting mechanism, the lifting mechanism is attached to a turning mechanism so that the entire lifting mechanism can be turned, a brake mechanism is provided on the turning mechanism, and the operator operates the A load raising / lowering device comprising a stop mechanism that allows a brake mechanism to operate and a turning mechanism to stop at that position.
の荷の昇降機構を駆動する電動機による駆動源とその駆
動手段と、昇降機構の位置または速度を検出する検出手
段と、作業者が昇降機構の速度または位置を指令する手
段を持った負荷昇降装置において、昇降機構の吊り具が
前後に動作するように前後スライド機構を設け、この前
後スライド機構にブレーキ機構を設け、作業者が操作を
行うことで前記ブレーキ機構が働き前後スライド機構が
その位置で停止するような停止機構を有することを特徴
とする負荷昇降装置。2. A parallel link type mechanism for lifting and lowering a load, a drive source by an electric motor for driving the lifting and lowering mechanism of the load and its driving means, a detecting means for detecting the position or speed of the lifting mechanism, and an operator. In a load lifting device that has means for commanding the speed or position of the lifting mechanism, a front-rear slide mechanism is provided so that the lifting device of the lifting mechanism moves back and forth, and a brake mechanism is provided on this front-rear slide mechanism so that the operator can operate it. The load elevating / lowering device is characterized by having a stop mechanism in which the brake mechanism operates to stop the front and rear slide mechanism at that position.
の荷の昇降機構を駆動する電動機による駆動源とその駆
動手段と、昇降機構の位置または速度を検出する検出手
段と、作業者が昇降機構の速度または位置を指令する手
段を持った負荷昇降装置において、昇降機構の吊り具を
昇降機構に対して旋回可能なように旋回機構を介して取
付け、この吊り具の旋回機構にブレーキ機構を設け、作
業者が操作を行うことで前記ブレーキ機構が働き吊り具
の旋回機構がその位置で停止するような停止機構を有す
ることを特徴とする負荷昇降装置。3. A parallel link type mechanism for raising and lowering a load, a drive source by an electric motor for driving the load raising and lowering mechanism and its driving means, a detecting means for detecting the position or speed of the lifting mechanism, and an operator. In a load lifting device having means for instructing the speed or position of a lifting mechanism, a lifting device of the lifting mechanism is attached via a turning mechanism so as to be able to rotate with respect to the lifting mechanism, and a braking mechanism is attached to the lifting mechanism of the lifting device. The load elevating / lowering device is provided with a stop mechanism such that the brake mechanism is operated by an operator to operate and the turning mechanism of the suspender stops at that position.
の荷の昇降機構を駆動する電動機による駆動源とその駆
動手段と、昇降機構の位置または速度を検出する検出手
段と、作業者が昇降機構の速度または位置を指令する手
段を持った負荷昇降装置において、昇降機構全体を旋回
する旋回機構と前後スライド機構の夫々にブレーキ機構
を設ける、又は昇降機構全体を旋回する旋回機構と吊り
具と旋回機構の夫々にブレーキ機構を設ける、又は前後
にスライド機構と吊り具の旋回機構の夫々にブレーキ機
構を設け、前記各機構のブレーキ機構が夫々単独にある
いは複数のブレーキ機構が同時に動作することを特徴と
した負荷昇降装置。4. A parallel link type mechanism for raising and lowering a load, a drive source by an electric motor for driving the load raising and lowering mechanism and its driving means, a detecting means for detecting the position or speed of the raising and lowering mechanism, and an operator. In a load lifting device having means for instructing the speed or position of the lifting mechanism, a brake mechanism is provided for each of the swing mechanism that swings the entire lifting mechanism and the front-rear slide mechanism, or the swing mechanism and the hanging device that swings the entire lifting mechanism. A brake mechanism is provided for each of the rotating mechanism and the swing mechanism, or a brake mechanism is provided for each of the slide mechanism and the swing mechanism for the lifting device in the front and rear, and the brake mechanism of each mechanism operates independently or at the same time. Load lifting device.
に働くブレーキ力を下げ完全に停止させず、各機構の動
作を重くするように動作することを特徴とする負荷昇降
装置。5. The load elevating / lowering device according to any one of claims 1 to 4, wherein the braking force acting on each mechanism is reduced and the mechanism is operated so as to increase the operation of each mechanism without stopping it completely.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24015792A JPH0687598A (en) | 1992-09-09 | 1992-09-09 | Load elevating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24015792A JPH0687598A (en) | 1992-09-09 | 1992-09-09 | Load elevating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0687598A true JPH0687598A (en) | 1994-03-29 |
Family
ID=17055346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24015792A Pending JPH0687598A (en) | 1992-09-09 | 1992-09-09 | Load elevating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0687598A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002362900A (en) * | 2001-06-04 | 2002-12-18 | Aikoku Alpha Corp | Cargo carrier |
-
1992
- 1992-09-09 JP JP24015792A patent/JPH0687598A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002362900A (en) * | 2001-06-04 | 2002-12-18 | Aikoku Alpha Corp | Cargo carrier |
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