HEAT WIRE SWITCHING CIRCUIT FOR BATTERY FORKLIFT WITH CABIN

PURPOSE:To reduce power consumption, in a forklift having heat wires for removing frost from a window glass and used in a freezing warehouse, by enabling series connection of plural heat wires connected in parallel by means of changeover switches. CONSTITUTION:In a system where heat wires R1-R5 havi...

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Bibliographische Detailangaben
1. Verfasser:	UEMOTO SHOHEI
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HAULING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD LIFTING PERFORMING OPERATIONS SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce power consumption, in a forklift having heat wires for removing frost from a window glass and used in a freezing warehouse, by enabling series connection of plural heat wires connected in parallel by means of changeover switches. CONSTITUTION:In a system where heat wires R1-R5 having on/off switches W1-W5 are arranged on the front/rear, roof and right/left window glasses, a heat wire switching circuit 20 comprising parallel/series changeover switches S1-S4 having parallel contacts P1-P4 and series contacts E1-E4 is provided. Upon changeover of said switches S2-S4 while interlocking to the parallel contacts P1-P4 side, respective heat wires R1-R5 are connected in parallel with respect to a battery 5. Upon changeover of said switches S1-S4 while interlocking to the series contacts E1-E4 side, respective heat wires R1-R5 are connected in series including in parallel.