SUSPENSION TYPE OVERHEAD TRAVELING CONVEYING CARRIAGE

PROBLEM TO BE SOLVED: To eliminate danger of falling-off of a conveyed load caused by malfunction of a holding mechanism. SOLUTION: A push buttom switch 3 for confirming the existence of a conveyed load is provided in a claw 2a of a gripping part 2 of a suspended type overhead traveling conveying ca...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GUNKE NOBUKIMI, TAKAOKA SHUNJI
Format:	Patent
Sprache:	eng
Schlagworte:	CHAMBERS PROVIDED WITH MANIPULATION DEVICES CONTROLLING CONVEYING CRANES EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR HAND TOOLS HANDLING THIN OR FILAMENTARY MATERIAL HAULING HOISTING LIFTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MANIPULATORS PACKING PERFORMING OPERATIONS PHYSICS PNEUMATIC TUBE CONVEYORS PORTABLE POWER-DRIVEN TOOLS RAILWAY SYSTEMS RAILWAYS REGULATING SHOP CONVEYOR SYSTEMS STORING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To eliminate danger of falling-off of a conveyed load caused by malfunction of a holding mechanism. SOLUTION: A push buttom switch 3 for confirming the existence of a conveyed load is provided in a claw 2a of a gripping part 2 of a suspended type overhead traveling conveying carriage for holding the conveyed load in the carriage. The switch 3 is arranged to be pushed down when the load is exists in the gripping part 2. The switch 3 is connected to an electric power surce circuit of an actuator for opening and closing the gripping part 2 of the carriage, and a supply of electric power to the actuator for opening and closing the gripping part 2 is blocked in a condition where the switch 3 is pushed down. The gripping part 2 is prevented thereby from being opened by malfunction in a condition where the gripping part 2 holds the conveyed load so as to prevent the load from falling off, even when abnormality is generated in a controller for controlling the opening and closing of the gripping part 2.