JPS58131287U - Crane safety device - Google Patents
Crane safety deviceInfo
- Publication number
- JPS58131287U JPS58131287U JP2600882U JP2600882U JPS58131287U JP S58131287 U JPS58131287 U JP S58131287U JP 2600882 U JP2600882 U JP 2600882U JP 2600882 U JP2600882 U JP 2600882U JP S58131287 U JPS58131287 U JP S58131287U
- Authority
- JP
- Japan
- Prior art keywords
- winch
- boom
- safety device
- inclinometer
- wire rope
- 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
- Jib Cranes (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
第１図は、従来のクレーンの安全装置に使用されるリミ
ットスイッチの配置態様を示す概念図、第２図は、本考
案に係るクレーンの安全装置におけるリミットスイッチ
および傾斜計の配置態様を示す概念図、第３図は、本考
案に保るクレーンの安全装置の一実施例を示すプロ７り
図、第４図は、停止制御回路の制御手順の一例を示すフ
ローチャートである。
１・・・・・・クレーン本体、２・・・・・・ブーム、
３・ｍａｍｍａ吊荷フック、４．６・１１１１１１１１
１１ワイヤロープ、５．７−・・・・・ウィンチ、８・
・・・・・傾斜計、１０・・・・・・角変位検出器、１
１・・・・・・停止制御回路、１４．１６・・・・・・
ウィンチ停止回路、１５・・・・・・警報装置、ＬＳ１
〜ＬＳ：１・・・・・・リミットスイッチ。FIG. 1 is a conceptual diagram showing the arrangement of limit switches used in a conventional crane safety device, and FIG. 2 is a conceptual diagram showing the arrangement of limit switches and inclinometers in the crane safety device according to the present invention. 3 is a schematic diagram showing an embodiment of the crane safety device according to the present invention, and FIG. 4 is a flowchart showing an example of the control procedure of the stop control circuit. 1... Crane body, 2... Boom,
3・mamma hanging load hook, 4.6・11111111
11 wire rope, 5.7-... winch, 8.
...Inclinometer, 10 ... Angular displacement detector, 1
1... Stop control circuit, 14.16...
Winch stop circuit, 15...Alarm device, LS1
~LS:1...Limit switch.
Claims (1)
作動する第１のリミットスイッチと、ブームの起伏角が
あらかじめ設定された上限値に達すると作動する第２の
リミットスイッチとを備え、前記第１および第２めリミ
ットスイッチの作動信号により、前記吊荷フック用ワイ
ヤロープを巻き上げる第１のウィンチおよび前記ブーム
を引き起こすワイヤロープを巻き上げる第２のウィンチ
をそれぞれ停止させるクレーンの安全装置において、前
記ブームの傾斜角を検出する傾斜計を該ブームに設ける
とともに、前記第２のウィンチの回転状態を検出する第
３のリミットスイッチを設け、さらに、前記第１および
第３のリミットスイッチから作動信号が出力されずかつ
前記傾斜計の検出出力が変化するとき前記第１のウィン
チに停止信号−を出力する停止制御回路を設けたことを
特徴とするクレーンの安全装置。A first limit switch that is activated when the hoisting amount of the wire rope for the hanging load hook exceeds a predetermined amount, and a second limit switch that is activated when the heave angle of the boom reaches a preset upper limit, In the crane safety device, a first winch that winds up the wire rope for lifting the load hook and a second winch that winds up the wire rope that causes the boom are respectively stopped by activation signals of the first and second limit switches, An inclinometer for detecting the inclination angle of the boom is provided on the boom, and a third limit switch is provided for detecting the rotational state of the second winch, and an actuation signal is sent from the first and third limit switches. A safety device for a crane, characterized in that a stop control circuit is provided for outputting a stop signal to the first winch when the detection output of the inclinometer is not output and the detection output of the inclinometer changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2600882U JPS58131287U (en) | 1982-02-25 | 1982-02-25 | Crane safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2600882U JPS58131287U (en) | 1982-02-25 | 1982-02-25 | Crane safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58131287U true JPS58131287U (en) | 1983-09-05 |
Family
ID=30037957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2600882U Pending JPS58131287U (en) | 1982-02-25 | 1982-02-25 | Crane safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58131287U (en) |
-
1982
- 1982-02-25 JP JP2600882U patent/JPS58131287U/en active Pending
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