JPH0222989U - - Google Patents
Info
- Publication number
- JPH0222989U JPH0222989U JP5288089U JP5288089U JPH0222989U JP H0222989 U JPH0222989 U JP H0222989U JP 5288089 U JP5288089 U JP 5288089U JP 5288089 U JP5288089 U JP 5288089U JP H0222989 U JPH0222989 U JP H0222989U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- load
- sequence control
- crane
- rotating lever
- 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
- Control And Safety Of Cranes (AREA)
Description
第１図はこの考案の実施例のシーブの正面図、
第２図は同じくシーブの側面図、第３図は同じく
シーブの断面図、第４図は同じく実施例の回動レ
バーに取付ける突起の断面図、第５図はこの考案
の実施例のシーケンス制御回路の回路図、第６図
乃至第８図はシーケンス制御回路の動作を説明す
る図である。
１……ホイスト、２……ブラケツト、３……吊
下具、４……シーブ、５……回転輸、６……軸、
７……ベアリング、８，８ａ……偏心軸、９，９
ａ……ベアリング、１０……回動レバー、１１…
…シヨツクアブソーバー、１２……圧縮ばね、１
３……Ｌ形板、１４……突起、１５……取付板、
１６……作動杆、１７……凹入部、１８……ピン
、１９……スリーブ、２０……スプリング、２１
……ロツクナツト。
Figure 1 is a front view of the sheave of the embodiment of this invention.
Fig. 2 is a side view of the sheave, Fig. 3 is a sectional view of the sheave, Fig. 4 is a sectional view of the protrusion attached to the rotating lever of the embodiment, and Fig. 5 is a sequence control of the embodiment of this invention. The circuit diagrams of FIGS. 6 to 8 are diagrams for explaining the operation of the sequence control circuit. 1...Hoist, 2...Bracket, 3...Hanging tool, 4...Sheave, 5...Rotating transport, 6...Shaft,
7... Bearing, 8, 8a... Eccentric shaft, 9, 9
a... Bearing, 10... Rotating lever, 11...
...Shock absorber, 12...Compression spring, 1
3...L-shaped plate, 14...Protrusion, 15...Mounting plate,
16... Operating rod, 17... Recess, 18... Pin, 19... Sleeve, 20... Spring, 21
...Rotsuknut.
Claims (1)
に衝撃荷重および最大許容荷重を検出する為の複
数のリミツトスイツチが対向設置してあり、前記
回動レバーの他端と、吊下具を形成したプレート
とをシヨツクアブソーバーを介して連結し、前記
複数のリミツトスイツチを介装したシーケンス制
御回路の出力がクレーンを駆動する為の駆動モー
ター回路を断接制御指示するように構成し、前記
シーケンス制御回路には、衝撃荷重の検出時に動
作する回路を解除する為の回路が設けてあること
を特徴とするクレーンにおけるロードリミツター
。 A plurality of limit switches for detecting impact loads and maximum permissible loads are installed facing each other at one end of an eccentric rotating lever that moves in proportion to the load, and a hanging device is formed with the other end of the rotating lever. The plate is connected through a shock absorber, and the output of the sequence control circuit including the plurality of limit switches instructs the sequence control circuit to connect/disconnect a drive motor circuit for driving the crane. is a load limiter for a crane, characterized in that it is equipped with a circuit for canceling the circuit that operates when an impact load is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5288089U JPH0222989U (en) | 1989-05-08 | 1989-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5288089U JPH0222989U (en) | 1989-05-08 | 1989-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222989U true JPH0222989U (en) | 1990-02-15 |
Family
ID=31278875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5288089U Pending JPH0222989U (en) | 1989-05-08 | 1989-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222989U (en) |
-
1989
- 1989-05-08 JP JP5288089U patent/JPH0222989U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0630787Y2 (en) | Jack overload protector | |
| JPS6018296Y2 (en) | Natsutranna reaction force receiver | |
| JPH0711092Y2 (en) | Elevator governor rope holding device | |
| JPH0625485Y2 (en) | Fixed position stop device for crane traveling cart | |
| JPS5842395Y2 (en) | Electric chain block overload prevention device | |
| JPH0313515Y2 (en) | ||
| JPH0319937U (en) | ||
| JPS649971U (en) | ||
| JPH01121073U (en) | ||
| JPS5853464Y2 (en) | clutch detent device | |
| JPS5829118Y2 (en) | Overload prevention device | |
| JPS6394037U (en) | ||
| JPH0463831U (en) | ||
| JPS6234588U (en) | ||
| JPS6049434U (en) | brake dynamometer | |
| JPH0346491U (en) | ||
| JPH0359987U (en) | ||
| JPS6317190U (en) | ||
| JPS58173686U (en) | construction crane | |
| JPH0471321U (en) | ||
| JPH0312156U (en) | ||
| JPS59163719A (en) | Spring operating device | |
| JPS613430U (en) | Forklift load detection mechanism | |
| JPH04105656U (en) | cam mechanism | |
| JPS58134065U (en) | Electric motor |