B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
340/133, 341/85
B66F 17/00 (2006.01)
Patent
CA 1065438
ABSTRACT OF THE DISCLOSURE An overload protective system continuously monitors the forward overturning moment on a counterbalanced lift truck and prevents further raising of the carriage or further forward tilting of the mast when the tilting moment is excessive. A strain gage sensor connected in an electrical bridge derives a strain signal proportional to the mechanical strain in a load carrying anchor pin for the tilt jack which resists the forward overturning moment acting on the truck; a differential amplifier raises the level of the strain signal; a comparator which receives the output of the differential amplifier derives a trip signal when the strain signal reaches a predetermined magnitude; a shift register receiving clock pulses from an oscillator as a time reference records the history of the comparator output and a decoder analyzes the shift register output and sets a latch when the trip signal comparator output has been present for a predetermined interval of time; and disabling means responsive to setting of the latch de-energize operating coils for blocking valves which inhibit further raising of the carriage or further forward tilting of the mast.
240969
LandOfFree
Truck overload protective system having trip signal sampling... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Truck overload protective system having trip signal sampling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Truck overload protective system having trip signal sampling... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-507822