JPS601787U - Overcurrent prevention device for lifting electromagnets - Google Patents
Overcurrent prevention device for lifting electromagnetsInfo
- Publication number
- JPS601787U JPS601787U JP7163384U JP7163384U JPS601787U JP S601787 U JPS601787 U JP S601787U JP 7163384 U JP7163384 U JP 7163384U JP 7163384 U JP7163384 U JP 7163384U JP S601787 U JPS601787 U JP S601787U
- Authority
- JP
- Japan
- Prior art keywords
- lifting electromagnet
- prevention device
- passing
- excitation
- timer
- 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
Landscapes
- Load-Engaging Elements For 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図は従来方式の動作を表わす展開接続図、第２図は
操作スイッチの動作展開図、第３図は本発明になる動作
を表わす展開接続図。
１．２・・・直流電源、３・・・操作スイッチ、４・・
・正励磁用接触器、５・・・逆励磁用接触器。FIG. 1 is an expanded connection diagram showing the operation of the conventional method, FIG. 2 is an expanded connection diagram showing the operation of the operation switch, and FIG. 3 is an expanded connection diagram showing the operation of the present invention. 1.2...DC power supply, 3...operation switch, 4...
・Contactor for forward excitation, 5...contactor for reverse excitation.
Claims (1)
操作をする操作スイッチと、該正逆に対応する電磁石接
触器コイルに付加したタイマーとを有する吊上電磁石の
過通型防止装置において、 前記励磁装置は正励磁用電磁接触器主接点を介して電源
に直接接続される前記吊上電磁石を有し、 前記タイマーは、前記励磁装置よりの吊上励磁信号によ
りカウントを開始し、予めセットされた所定時限経過後
に、前記タイマーからの信号により警告を発するか、又
は、前記励磁を解除することを特徴とする吊上電磁石の
過通型防止装置。 ２ 実用新案登録請求の範囲第１項記載の吊上電磁石の
過通型防止装置において、 、゛前記吊上電磁石の
熱容量及び使用現場のサイクルタイムの状況に応じて前
記タイマーの時限設定を調整可能にしたことを特徴と子
る吊上電磁石の過通型防止装置。 ３ 実用新案登録請求の範囲第１項記載の吊上電磁石の
過通型防止装置において、 前記警告を発してから一定時間経過した後前記吊上電磁
石の励磁を解除することを特徴とする吊上電磁石め過通
型防止装置。[Claims for Utility Model Registration] 1. Includes an excitation device that excites a lifting electromagnet in forward and reverse directions, an operation switch that operates the forward and reverse directions, and a timer attached to an electromagnetic contactor coil corresponding to the forward and reverse directions. In the passing type prevention device for a lifting electromagnet, the excitation device has the lifting electromagnet directly connected to a power source via a main contact of a positive excitation electromagnetic contactor, and the timer is configured to prevent the lifting electromagnet from passing through the excitation device. A passing prevention device for a lifting electromagnet, characterized in that a count is started by an upper excitation signal, and after a preset predetermined time period has elapsed, a warning is issued by a signal from the timer or the excitation is canceled. . 2 Utility Model Registration Scope of Claims In the passing prevention device for a lifting electromagnet as set forth in claim 1, the time limit setting of the timer can be adjusted according to the heat capacity of the lifting electromagnet and the cycle time situation at the site of use. This is a passing type prevention device for a suspended electromagnet. 3 Utility Model Registration Scope of Claim 1 In the lifting electromagnet passing prevention device as set forth in claim 1, the lifting electromagnet is de-energized after a certain period of time has elapsed after issuing the warning. Electromagnetic pass-through prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163384U JPS6022043Y2 (en) | 1984-05-16 | 1984-05-16 | Overcurrent prevention device for lifting electromagnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7163384U JPS6022043Y2 (en) | 1984-05-16 | 1984-05-16 | Overcurrent prevention device for lifting electromagnets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS601787U true JPS601787U (en) | 1985-01-08 |
| JPS6022043Y2 JPS6022043Y2 (en) | 1985-07-01 |
Family
ID=30201782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7163384U Expired JPS6022043Y2 (en) | 1984-05-16 | 1984-05-16 | Overcurrent prevention device for lifting electromagnets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022043Y2 (en) |
-
1984
- 1984-05-16 JP JP7163384U patent/JPS6022043Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6022043Y2 (en) | 1985-07-01 |
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