Safety device for use when driver leaves a seat of an industrial

Details Safety device for use when driver leaves a seat of an industrial Safety device for use when driver leaves a seat of an industrial

1991-02-04

1992-05-05

Dayoan, D. Glenn

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

Responsive to absence or inattention of operator, or...

180272, B60K 2804

Patent

active

051099454

ABSTRACT:
In an industrial vehicle, a driver must leave his seat and manipulate a hydraulic lever for loading, while keeping the vehicle at a stopped position without stopping the engine.
The safety device includes a seat switch which detects the seating or absence of the driver, a lever switch which detects the forward, neutral or reverse position of the shift lever, and a control which de-energizes the power source of the solenoid valve when the seat switch detects the absence of the diver and re-inputs the power source of the solenoid valve only when the lever switch detects the neutral position.

REFERENCES:
patent: 3500946 (1970-03-01), Boyajian
patent: 3838748 (1974-10-01), Gray et al.
patent: 4019602 (1977-04-01), Habiger
patent: 4294327 (1981-10-01), Howard
patent: 4317500 (1982-03-01), Bening
patent: 4381042 (1983-04-01), Perry
"Yale Industrial Trucks", Eaton Corporation, Industrial Truck Division, Aug., 1978, Electrical System, Std. Wiring Diagram.

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