Seat belt interlock for loaders

Details Seat belt interlock for loaders Seat belt interlock for loaders

B - Operations, Transporting

60

K

227/23

B60K 28/04 (2006.01) B60R 22/48 (2006.01) E02F 9/24 (2006.01)

Patent

CA 1309994

SEAT BELT INTERLOCK FOR LOADERS ABSTRACT OF THE DISCLOSURE A loader having hydraulically operated boom and bucket mechanisms controllable from the operator seat is disclosed wherein switches sense the presence of the operator in the seat and the buckling of the seat belt. An electronic controller is operably associated with the seat and belt switches and solenoid valves in the hydraulic system and the starter relay. The controller requires proper sequencing of the activation of the seat and belt switches before permitting the starter to be energized, thereby controlling the starting of the loader engine, or permitting the energizing of the hydraulic solenoid valves to control the flow of hydraulic fluid to the hydraulic cylinders for the boom and bucket. The controller also includes a delay associated with the seat switch so that a reactivation of the seat switch within the delayed period of time would allow the hydraulic system to operate without requiring a resequencing of the activation of the seat and belt switches.

584520

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