JPH0362637B2 - - Google Patents
Info
- Publication number
- JPH0362637B2 JPH0362637B2 JP22594887A JP22594887A JPH0362637B2 JP H0362637 B2 JPH0362637 B2 JP H0362637B2 JP 22594887 A JP22594887 A JP 22594887A JP 22594887 A JP22594887 A JP 22594887A JP H0362637 B2 JPH0362637 B2 JP H0362637B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- low speed
- low
- hoisting
- chain block
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Control Of Direct Current Motors (AREA)
- Mechanisms For Operating Contacts (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高速低速の切換えは段階的に行い高速
又は低速或いは両速度範囲内では無段階的に速度
調整できる電気チエーンブロツクの操作装置に関
するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an operating device for an electric chain block that can switch between high and low speeds in stages and can adjust the speed steplessly within high speed, low speed, or both speed ranges. It is.
従来、電気チエーンブロツクの巻上下速度を無
段階に変速できる技術としては、例えば本出願人
が先に出願した特願昭61−78725号がある。従来
の無段変速電気チエーンブロツクは、高速から低
速或いは低速から高速に急に変更したい場合で
も、無段階の速度制御となり低速或いは高速にな
る迄に時間がかかり応答性が悪いという問題点が
あつた。
Conventionally, as a technique for continuously changing the winding speed of an electric chain block, there is, for example, Japanese Patent Application No. 1987-78725 filed by the present applicant. Conventional continuously variable speed electric chain blocks have the problem that even if you want to suddenly change from high speed to low speed or from low speed to high speed, the speed is controlled continuously and it takes time to change to low or high speed, resulting in poor response. Ta.
そこで本出願人は、高速から低速或いは低速か
ら高速への切換えを切換スイツチ等で段階的に切
換えができ、高速範囲又は低速範囲或いは両速度
範囲では無段階に速度調整できる電気チエーンブ
ロツクを開発し出願している（実願昭61−132605
号）。 Therefore, the present applicant has developed an electric chain block that can stepwise change from high speed to low speed or from low speed to high speed using a changeover switch, etc., and can adjust the speed steplessly in the high speed range, low speed range, or both speed ranges. I have applied (Jet No. 61-132605)
issue).
〔発明が解決しようとする問題点〕
しかしながら、実願昭61−132605号に開示され
た電気チエーンブロツクはチエーンやフツクから
離れた位置に設けた操作装置で巻上げ巻下げの切
換え行なつているため、作業者は自分が重量物を
持ち上げる感覚とは程遠く、電気チエーンブロツ
ク操作簡便性にかけるという問題があつた。[Problems to be Solved by the Invention] However, the electric chain block disclosed in Utility Application No. 132,605/1980 switches between hoisting and hoisting using an operating device located away from the chain and hook. However, there was a problem in that the operator was far from feeling like he was lifting a heavy object, and the electric chain block was not easy to operate.
本発明は上述の点に鑑みてなされたもので、上
記従来の電気チエーンブロツクの欠点を除去し、
作業者自身が重量物を持ち上下げする感覚で電気
チエーンブロツクの巻上げ巻下げの切換えがで
き、且つ高低速の切換えが段階的で応答性が良
く、更に高速範囲又は低速範囲或いは両速度範囲
では無段階に速度調整できる操作簡便な電気チエ
ーンブロツクの操作装置を提供することにある。 The present invention has been made in view of the above-mentioned points, and eliminates the drawbacks of the above-mentioned conventional electric chain block.
The operator can switch between hoisting and lowering the electric chain block as if he or she were lifting and lowering a heavy object, and the high and low speeds can be switched in stages with good responsiveness. To provide an operating device for an electric chain block that is easy to operate and can steplessly adjust speed.
上記問題点を解決するため本発明は、電気チエ
ーンブロツクの操作装置を、巻上下げ用チエーン
の先端と荷重吊下用フツクとの間に係合された筒
体と、該筒体の外周に嵌合し、上下に所定量摺動
する筒状のグリツプと、前記筒体内に配置されグ
リツプの上下動を検知する上下動検出器と、筒体
上部に設けられたブラケツトに配置された高速低
速切換用スイツチと、該ブラケツトに配置された
少なくとも１個の速度調整用ツマミと、前記上下
動検出器からのグリツプの「上」又は「下」の検
出出力により巻上下電動機を正転又は逆転に切換
えると共に、高速低速切換用スイツチの「高速」
又は「低速」切換えにより巻上下電動機を高速又
は低速に切換え、更に速度調整用ツマミの回転に
より高速又は低速或いは高低速両範囲で巻上下電
動機の速度を調整する制御装置とで構成した。
In order to solve the above-mentioned problems, the present invention provides an electric chain block operating device that is connected to a cylindrical body engaged between the tip of a hoisting and lowering chain and a load suspension hook, and to an outer periphery of the cylindrical body. A cylindrical grip that fits together and slides up and down a predetermined amount, a vertical motion detector placed inside the cylinder to detect vertical movement of the grip, and a high-speed and low-speed sensor placed on a bracket provided at the top of the cylinder. The hoisting/vertical motor is rotated in the forward or reverse direction by a changeover switch, at least one speed adjustment knob disposed on the bracket, and a detection output from the vertical motion detector indicating whether the grip is "up" or "down". At the same time, the high-speed and low-speed selector switches
Alternatively, it is configured with a control device that switches the hoisting/lowering motor to high speed or low speed by switching to "low speed" and further adjusts the speed of the hoisting/lowering motor in high speed, low speed, or both high and low speed ranges by rotating a speed adjustment knob.
電気チエーンブロツクの操作装置を上記の如く
構成することにより、巻上下げの切換操作はグリ
ツプの上下操作で、高低速の切換えは筒体上部に
設けられたブラケツトに配置された高速低速切換
用スイツチの操作で、高速又は低速或いは高低速
両範囲での速度調整は同じくブラケツトに配置さ
れた速度調整用ツマミの操作でそれぞれ行い、作
業者が任意の速度でしかも重量物の直上で重量物
の動きと連動しながら操作できるので、自分が重
量物を持ち上げ下げする感覚で電気チエーンブロ
ツクの巻上げ下げの操作がきる。
By configuring the operating device of the electric chain block as described above, hoisting and lowering can be changed by moving the grip up and down, and high and low speed can be changed by using a high-speed and low-speed changeover switch located on a bracket provided at the top of the cylinder. The operator can adjust the speed at high speed, low speed, or both high and low speed ranges by operating the speed adjustment knobs also placed on the bracket. Since it can be operated in conjunction with the electric chain block, you can raise and lower the electric chain block as if you were lifting and lowering a heavy object.
〔実施例〕
以下、本発明の一実施例を図面に基づいて説明
する。[Example] Hereinafter, an example of the present invention will be described based on the drawings.
第１図は本発明に係る電気チエーンブロツクの
操作装置の主要構成を示す図で、第１図ａは縦断
面側面図、同図ｂは正面図、同図ｃは筒体１１の
底面図である。 FIG. 1 is a diagram showing the main structure of an operating device for an electric chain block according to the present invention, in which FIG. 1a is a vertical cross-sectional side view, FIG. 1b is a front view, and FIG. be.
図において、１１は円筒状の筒体であり、該筒
体１１の外周には上下に所定量摺動する筒状のグ
リツプ１２が設けられている。筒体１１の内部に
はリミツトスイツチ１９，２０が設けられ、該リ
ミツトスイツチ１９，２０はグリツプ１２の内部
にビス２４で固定されたスイツチ当接部材２２に
より操作されるようになつている。即ち、グリツ
プ１２を上に摺動させるとスイツチ当接部材２２
がリミツトスイツチ１９のレバー１９ａを押し
て、該リミツトスイツチ１９をONし、グリツプ
１２を下に摺動させるとスイツチ当接部材２２は
リミツトスイツチ２０のレバー２０ａを押して、
該リミツトスイツチ２０をONにするようになつ
ている。２１はねじりバネであり、該ねじりバネ
２１は軸部材２３により筒体１１に支持されてお
り、その先端はグリツプ１２の溝に係合してお
り、常時はリミツトスイツチ１９もリミツトスイ
ツチ２０もOFFの状態になるようにグリツプ１
２を中立位置に付勢している。また、２５，２６
はそれぞれ軸部材２３を筒体１１内に固定するた
めのビスである。 In the figure, reference numeral 11 denotes a cylindrical body, and a cylindrical grip 12 is provided on the outer periphery of the cylinder 11, which slides a predetermined amount up and down. Limit switches 19 and 20 are provided inside the cylindrical body 11, and these limit switches 19 and 20 are operated by a switch abutment member 22 fixed to the inside of the grip 12 with screws 24. That is, when the grip 12 is slid upward, the switch contact member 22
presses the lever 19a of the limit switch 19, turns on the limit switch 19, and slides the grip 12 downward, the switch contact member 22 pushes the lever 20a of the limit switch 20,
The limit switch 20 is turned on. Reference numeral 21 denotes a torsion spring. The torsion spring 21 is supported by the cylindrical body 11 by a shaft member 23, and its tip engages with a groove in the grip 12, and both the limit switch 19 and the limit switch 20 are normally in the OFF state. Grip 1 so that
2 to the neutral position. Also, 25, 26
are screws for fixing the shaft member 23 within the cylindrical body 11, respectively.
筒体１１の上部には正面に高速低速切換用スイ
ツチ１４と高速範囲で無段階に速度を調整する速
度調整用ツマミ１５と低速範囲で無段階に速度を
調整する速度調整用ツマミ１６が両側面にそれぞ
れ配置される箱状のブラケツト１３が固定さてい
る。該ブラケツト１３の上部にはフランジ２７が
固定されており、該フランジ２７の上部には所定
の間隔をおいて、一対の突起部２８，２８が設け
られており、該突起部２８と２８の間隙に後述す
る巻上下用チエーンの下端部を挿入し、ピン穴２
９からピンを挿入して上記操作装置の主要構成を
巻上下用チエーンの下端に固定する。 At the top of the cylindrical body 11, there is a high/low speed switching switch 14 on the front, a speed adjustment knob 15 that adjusts the speed steplessly in the high speed range, and a speed adjustment knob 16 that adjusts the speed steplessly in the low speed range on both sides. Box-shaped brackets 13 are fixedly arranged at the respective positions. A flange 27 is fixed to the upper part of the bracket 13, and a pair of protrusions 28, 28 are provided on the upper part of the flange 27 at a predetermined interval. Insert the lower end of the winding and up-down chain (described later) into the pin hole 2.
A pin is inserted from 9 to fix the main components of the operating device to the lower end of the hoisting and lifting chain.
前記高速低速切換用スイツチ１４は、高速側Ｈ
と低速側Ｌとを表面の左右半分にそれぞれ表示し
た一個の押ボタンからなる切換スイツチであり、
押ボタンの内部にはランプ又は発光ダイオード等
の光源が内臓されており、例えば前に押ボタンを
押すと該押ボタンの高速側Ｈが内部から照明さ
れ、再度押ボタンを押すと高速側Ｈが消え反対低
速側Ｌが内部から照明されるようになつている。
速度調整用ツマミ１５及び速度調整用ツマミ１６
にはそれぞれ可変抵抗器が連動しており、それぞ
れ高速範囲及び低速範囲で無段階に速度調整がで
きるようになつている。 The high speed/low speed changeover switch 14 is set to the high speed side H.
It is a changeover switch consisting of a single push button with "L" and "Low speed side L" respectively displayed on the left and right halves of the surface.
A light source such as a lamp or a light emitting diode is built into the inside of the pushbutton.For example, when the pushbutton is pressed before, the high speed side H of the pushbutton is illuminated from inside, and when the pushbutton is pressed again, the high speed side H is illuminated. The opposite low-speed side L is illuminated from inside.
Speed adjustment knob 15 and speed adjustment knob 16
Each of these is linked with a variable resistor, allowing stepless speed adjustment in the high-speed and low-speed ranges.
第２図は上記操作装置を具備する電気チエーン
ブロツクの全体構成を示す図であり、図示するよ
うに、筒体１１の下端には荷物吊下用フツク３２
が取り付けられ、フランジ２７の突起部２８，２
８に前述のように巻上下用チエーン３１の下端が
固定されている。なお、３３は直流電動機等を具
備する駆動部であり、３４は電気チエーンブロツ
クを吊り下げるブロツク吊下用フツクである。 FIG. 2 is a diagram showing the overall structure of an electric chain block equipped with the above-mentioned operating device.
is attached, and the projections 28, 2 of the flange 27
8, the lower end of the chain 31 for winding up and down is fixed as described above. Note that 33 is a drive unit equipped with a DC motor, etc., and 34 is a block hanging hook for suspending the electric chain block.
第３図は本発明に係る電気チエーンブロツクの
操作装置の回路図である。同図において、４１は
操作回路、４２は位相制御回路、４３は全波整流
回路、４４は正逆転回路、DBRはダイナミツク
ブレーキ抵抗器、４５は直流モータである。 FIG. 3 is a circuit diagram of an operating device for an electric chain block according to the present invention. In the figure, 41 is an operating circuit, 42 is a phase control circuit, 43 is a full-wave rectifier circuit, 44 is a forward/reverse circuit, DBR is a dynamic brake resistor, and 45 is a DC motor.
操作回路４１は、巻上用回路４１ａ、巻下用回
路４１ｂ、高速低速切換用スイツチ１４ａ，１４
ｂ、高速用ランプLH、低速用ランプLL、高速用
速度調整可変抵抗器VRH、低速用速度調整可変抵
抗器VRLとにより構成される。 The operation circuit 41 includes a hoisting circuit 41a, a hoisting circuit 41b, and high/low speed switching switches 14a, 14.
b, a high-speed lamp L H , a low-speed lamp L L , a high-speed speed adjustment variable resistor V RH , and a low-speed speed adjustment variable resistor V RL .
巻上用回路４１ａは巻上検出用のリミツトスイ
ツチ１９の接点１９ｂ、巻下用リレーの常閉接点
MD−１と巻上用リレーMUの直列回路であり、
巻下用回路４１ｂは巻下検出用のリミツトスイツ
チ２０の接点２０ｂ、巻上用リレーの常閉接点
MU−１と巻上用リレーMDの直列回路である。
高速用速度調整可変抵抗器VRHと低速用速度調整
可変抵抗器VRLとは並列に接続され、高速低速切
換用スイツチ１４の接点１４ｂにより切換えられ
るようになつている。また、高速用速度調整可変
抵抗器VRHは高速範囲の速度を無段階に制御する
ための可変抵抗器であり、速度調整用ツマミ１５
の回転により抵抗値が変わるようになつている。
また、低速用速度調整可変抵抗器VRLは低速範囲
の速度を無段階に制御するための可変抵抗器であ
り、速度調整用ツマミ１６の回転により抵抗値が
変わるようになつている。 The hoisting circuit 41a is a contact 19b of a limit switch 19 for hoisting detection, and a normally closed contact of a hoisting relay.
It is a series circuit of MD-1 and hoisting relay MU,
The hoisting circuit 41b includes a contact 20b of a limit switch 20 for detecting hoisting and a normally closed contact of a hoisting relay.
This is a series circuit of MU-1 and hoisting relay MD.
The high speed speed adjusting variable resistor V RH and the low speed speed adjusting variable resistor V RL are connected in parallel and can be switched by the contact 14b of the high speed/low speed changeover switch 14. In addition, the high-speed speed adjustment variable resistor V RH is a variable resistor for steplessly controlling the speed in the high-speed range, and the speed adjustment knob 15
The resistance value changes depending on the rotation of.
Further, the low speed speed adjustment variable resistor VRL is a variable resistor for steplessly controlling the speed in the low speed range, and its resistance value is changed by rotation of the speed adjustment knob 16.
高速用ランプLHと低速用ランプLLとは並列に
接続され、高速低速切換用スイツチ１４の接点１
４ａにより切換えられるようになつている。 The high speed lamp L H and the low speed lamp L L are connected in parallel, and contact 1 of the high speed/low speed changeover switch 14
4a.
位相制御回路４２は、コンデンサＣと、双方向
性トリガーダイオードSBC（シリコン バイラテ
ラル スイツチ）等のトリガー素子Ｄ及びトライ
アツクＴで構成される。 The phase control circuit 42 is composed of a capacitor C, a trigger element D such as a bidirectional trigger diode SBC (Silicon Bilateral Switch), and a triac T.
正逆転回路４４は巻上用リレーMUの常開接点
MU−２、MU−３及び巻下用リレーMDの常開
接点MD−２、MD−３で構成されている。ま
た、ダイナミツクブレーキ抵抗器DBRには巻上
用リレーMDの常閉接点MU−４及び巻下用リレ
ーMDの常閉接点MD−４が直列に接続されてい
る。 The forward/reverse circuit 44 is a normally open contact of the hoisting relay MU.
It consists of MU-2, MU-3 and the normally open contacts MD-2 and MD-3 of the lowering relay MD. Further, the normally closed contact MU-4 of the hoisting relay MD and the normally closed contact MD-4 of the lowering relay MD are connected in series to the dynamic brake resistor DBR.
上記構成の制御回路を具備する操作装置におい
て、高速低速切換用スイツチ１４の押ボタンを高
速側Ｈ又は低速側Ｌに押すと、その接点１４ａ，
１４ｂはそれぞれＨ側或いＬ側が閉じ、高速用ラ
ンプLH或いは低速用ランプLLが点灯すると共に、
高速用速度調整可変抵抗器VRH或いは低速用速度
調整可変抵抗器VRLが接続される。 In the operating device equipped with the control circuit configured as described above, when the push button of the high speed/low speed changeover switch 14 is pushed to the high speed side H or the low speed side L, the contact 14a,
14b is closed on the H side or L side, and the high speed lamp L H or low speed lamp L L lights up, and
A high speed speed adjustment variable resistor V RH or a low speed speed adjustment variable resistor V RL is connected.
この状態でグリツプ１２を上に移動するとリミ
ツトスイツチ１９の接点１９ｂが閉じ、該接点１
９ｂ及び常閉接点MD−１を通して交流電源AC
から巻上用リレーMUに作動電流が流れ、該巻上
用リレーMUが作動し、その常開接点MU−２、
MU−３を閉じると共に、常開接点MU−１、
MU−４を開放する。これにより交流電源ACか
らの交流は位相制御回路４２で位相制御され、全
波整流回路４３で全波整流され直流モータ４５に
供給され、これにより直流モータ４５は正回転す
る。この時高速低速切換用スイツチ１４が高速側
或いは低速側になつているかにより、高速用速度
調整可変抵抗器VRH或いは低速用速度調整可変抵
抗器VRLの抵抗値により、直流モータ４５に供給
される電力量は制御され、回転速度が調整され
る。 When the grip 12 is moved upward in this state, the contact 19b of the limit switch 19 closes, and the contact 19b of the limit switch 19 closes.
AC power supply through 9b and normally closed contact MD-1
Operating current flows through the hoisting relay MU, the hoisting relay MU is activated, and its normally open contacts MU-2,
While closing MU-3, normally open contact MU-1,
Release MU-4. As a result, the phase of the alternating current from the alternating current power source AC is controlled by the phase control circuit 42, full-wave rectified by the full-wave rectifying circuit 43, and supplied to the direct current motor 45, thereby causing the direct current motor 45 to rotate in the forward direction. At this time, depending on whether the high speed/low speed changeover switch 14 is set to the high speed side or the low speed side, the voltage is supplied to the DC motor 45 according to the resistance value of the high speed speed adjustment variable resistor V RH or the low speed speed adjustment variable resistor V RL . The amount of power generated is controlled and the rotational speed is adjusted.
なお、上記実施例では２個の速度調整用ツマミ
１５，１６を設け、これにより高速用速度調整可
変抵抗器VRH及び低速用速度調整可変抵抗器VRL
の抵抗値を調整し、高速及び低速の両速度範囲で
速度を無段階で調整ができるように構成したが、
高速或いは低速のいずれか一方を固定し、他方の
速度範囲でのみ速度を調整するようにしても良い
ことは当然である。また、上記実施例ではその速
度の調整を無段階で行なう場合を例にしめした
が、複数段の間で段階的に微調整しても良いこと
も当然である。 In the above embodiment, two speed adjustment knobs 15 and 16 are provided, thereby controlling the high speed speed adjustment variable resistor V RH and the low speed speed adjustment variable resistor V RL.
By adjusting the resistance value, the speed can be adjusted steplessly in both high and low speed ranges.
Of course, either high speed or low speed may be fixed and the speed may be adjusted only within the other speed range. Further, in the above embodiment, the case where the speed adjustment is performed steplessly has been exemplified, but it goes without saying that the speed may be finely adjusted step by step between a plurality of steps.
また、上記実施例においては、ブラケツト１３
を筒体１１の上部に設けたが、該ブラケツト１３
は筒体１１の下部でも良いことは当然であり、要
は筒体１１の端部に直接的又は間接的に取り付け
られる構造であれば良いことは当然である。 Further, in the above embodiment, the bracket 13
was provided on the upper part of the cylindrical body 11, but the bracket 13
It goes without saying that the structure may be attached to the lower part of the cylinder 11, and that the structure can be attached directly or indirectly to the end of the cylinder 11.
以上説明したように本発明によれば、電気チエ
ーンブロツクの操作装置を上記の如く構成するこ
とにより、巻上下げの切換操作はグリツプの上下
操作で、高速低速の切換えは筒体端部に設けられ
たブラケツトに配置された高速低速切換用スイツ
チの操作で、高速又は低速或いは高低速両範囲で
の速度調整は同じくブラケツトに配置された速度
調整用ツマミの操作でできると共に、作業者が任
意の速度でしかも重量物の直上で重量物の動きと
連動しながら操作できるので、自分が重量物を持
ち上げ下げする感覚で電気チエーンブロツクの巻
上下げの操作ができるという優れた効果が得られ
る。
As explained above, according to the present invention, by configuring the operating device of the electric chain block as described above, the switching operation for hoisting and lowering is performed by the up and down operation of the grip, and the switching between high and low speeds is provided at the end of the cylindrical body. The speed can be adjusted between high speed, low speed, or both high and low speed ranges by operating the high/low speed changeover switch located on the bracket, and the operator can also adjust the speed by operating the speed adjustment knob also located on the bracket. Since the electric chain block can be operated at high speed and directly above the heavy object in conjunction with the movement of the heavy object, an excellent effect can be obtained in that the electric chain block can be hoisted and lowered as if it were lifting and lowering the heavy object.
第１図は本発明に係る電気チエーンブロツクの
操作装置の主要構成を示す図で、第１図ａは縦断
面側面図、同図ｂは正面図、同図ｃは筒体１１の
底面図、第２図は上記操作装置を具備する電気チ
エーンブロツクの全体構成を示す図、第３図は本
発明に係る電気チエーンブロツクの操作装置の回
路図である。
図中、１１……筒体、１２……グリツプ、１３
……ブラケツト、１４……高速低速切換用スイツ
チ、１５，１６……速度調整用ツマミ、１８……
１９，２０……リミツトスイツチ、２１……コイ
ルバネ、２２……スイツチ当接部材、２３……軸
部材、４１……操作回路、４２……位相制御回
路、４３……全波整流回路、４４……正逆転回
路、４５……直流モータ。
FIG. 1 is a diagram showing the main structure of an operating device for an electric chain block according to the present invention, in which FIG. 1a is a vertical cross-sectional side view, FIG. 1b is a front view, and FIG. FIG. 2 is a diagram showing the overall structure of an electric chain block equipped with the above operating device, and FIG. 3 is a circuit diagram of the operating device for an electric chain block according to the present invention. In the figure, 11...Cylinder, 12...Grip, 13
...Bracket, 14...High/low speed changeover switch, 15, 16...Speed adjustment knob, 18...
19, 20...Limit switch, 21...Coil spring, 22...Switch contact member, 23...Shaft member, 41...Operation circuit, 42...Phase control circuit, 43...Full wave rectifier circuit, 44... Forward/reverse circuit, 45...DC motor.
Claims (1)
との間に係合された筒体と、該筒体の外周に嵌合
し、上下に所定量摺動する筒状のグリツプと、前
記筒体内に配置されグリツプの上下動を検知する
上下動検出器と、前記筒体端部に設けられたブラ
ケツトに配置された高速低速切換用スイツチと、
該ブラケツトに配置された少なくとも１個の速度
調整用ツマミと、前記上下動検出器からのグリツ
プの「上」又は「下」の検出出力により巻上下電
動機を正転又は逆転に切換えると共に、高低速切
換用スイツチの「高速」又は「低速」切換えによ
り前記巻上下電動機を高速又は低速に切換え、更
に前記速度調整用ツマミの回転により高速又は低
速或いは高低速両範囲で前記巻上下電動機の速度
を微調整する制御装置を具備することを特徴とす
る電気チエーンブロツクの操作装置。 ２ 高速低速切換用スイツチは高速と低速とを切
換える切換ボタンスイツチからなり、該切換ボタ
ンスイツチのボタン内部に高速、低速を切換表示
する光源が収容されていることを特徴とする特許
請求の範囲第１項記載の電気チエーンブロツクの
操作装置。 ３ 前記速度調整用ツマミが一個であり、前記巻
上下電動機を高速又は低速いずれか一方の範囲で
速度調整を可能とし他方範囲の速度を固定とした
ことを特徴とする特許請求の範囲第１項又は第２
項記載の電気チエーンブロツクの操作装置。 ４ 前記速度調整用ツマミの回転により抵抗値を
変化する可変抵抗器を設け、高速又は低速或いは
高低速両範囲で巻上下電動機の速度を無段階で調
整することができることを特徴とする特許請求の
範囲第１項又は第２項又は第３項記載の電気チエ
ーンブロツクの操作装置。[Claims] 1. A cylindrical body engaged between the tip of the winding and vertical chain and the load suspension book, and a cylindrical body that fits on the outer periphery of the cylindrical body and slides up and down a predetermined amount. a grip, a vertical motion detector disposed within the cylinder body to detect vertical movement of the grip, and a high-speed/low-speed changeover switch disposed on a bracket provided at the end of the cylinder body;
At least one speed adjustment knob disposed on the bracket and the detection output of the grip "up" or "down" from the vertical motion detector switch the hoisting/vertical motor to forward or reverse rotation, and also to high/low speed. By switching the selector switch between "high speed" and "low speed", the hoisting/lowering motor is switched to high speed or low speed, and further, by rotating the speed adjusting knob, the speed of the hoisting/lowering motor is finely adjusted between high speed, low speed, or both high and low speed ranges. An operating device for an electric chain block, characterized in that it is equipped with a control device for adjusting. 2. The high speed/low speed changeover switch is comprised of a changeover button switch for changing between high speed and low speed, and a light source for switching between high speed and low speed is housed within the button of the changeover button switch. An operating device for an electric chain block according to item 1. 3. Claim 1, characterized in that the speed adjustment knob is one, and the hoisting/lowering motor can be adjusted in speed in either a high speed or low speed range, and the speed in the other range is fixed. or second
An operating device for an electric chain block as described in Section 1. 4. A variable resistor whose resistance value is changed by rotation of the speed adjustment knob is provided, and the speed of the hoisting/lowering motor can be adjusted steplessly in high speed, low speed, or both high and low speed ranges. An operating device for an electric chain block according to item 1, item 2, or item 3.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62225948A JPS6469498A (en) | 1987-09-08 | 1987-09-08 | Operating device for electric chain block |
| US07/154,169 US4844421A (en) | 1987-02-18 | 1988-02-09 | Operating device for electric hoist |
| KR1019880001414A KR910000895B1 (en) | 1987-02-18 | 1988-02-13 | Operating device for electric hoist |
| DE8888102188T DE3873370T2 (en) | 1987-02-18 | 1988-02-15 | OPERATING DEVICE FOR ELECTRIC LIFTING DEVICE. |
| ES198888102188T ES2033953T3 (en) | 1987-02-18 | 1988-02-15 | DEVICE FOR DRIVING AN ELECTRIC HOIST. |
| EP88102188A EP0279395B1 (en) | 1987-02-18 | 1988-02-15 | Operating device for electric hoist |
| FI880697A FI88493C (en) | 1987-02-18 | 1988-02-15 | Manoeveranordning Foer elektriskt lyftblock |
| BG083031A BG48567A3 (en) | 1987-02-18 | 1988-02-17 | ELECTRIC HOIST CONTROL DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62225948A JPS6469498A (en) | 1987-09-08 | 1987-09-08 | Operating device for electric chain block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6469498A JPS6469498A (en) | 1989-03-15 |
| JPH0362637B2 true JPH0362637B2 (en) | 1991-09-26 |
Family
ID=16837401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62225948A Granted JPS6469498A (en) | 1987-02-18 | 1987-09-08 | Operating device for electric chain block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6469498A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0759472B2 (en) * | 1989-11-13 | 1995-06-28 | 象印チェンブロック株式会社 | Electric chain block |
| DE10204498A1 (en) * | 2002-02-04 | 2003-08-21 | Demag Mobile Cranes Gmbh & Co | Crane with manual input devices |
| JP6719417B2 (en) * | 2017-03-31 | 2020-07-08 | 株式会社キトー | Operating device and electric chain block |
-
1987
- 1987-09-08 JP JP62225948A patent/JPS6469498A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6469498A (en) | 1989-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |