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US 2003/0222784 A1Published application
Detecting damage to a structural member
AssigneeJ. C. Bamford Excavators Limited
InventorsAndrew David Nurse, Lee Edward Jan Styger
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AssigneeJ. C. Bamford Excavators Limited
InventorsAndrew David Nurse, Lee Edward Jan Styger
Estimating the term…
A method of detecting damage to a structural member which is part of a working arm of a working apparatus, which arm is moveable relative to a body of the apparatus by an actuator. In use, the arm carries a load at another end thereof. The method including the steps of locating in or on the structural member in a position which is liable to damage, at least one filament. So long as the filament remains undamaged, a signal is transmitted along the length of the filament. In the event of an interruption of the transmitted signal, a fault signal is generated. The fault signal is used to disable operation of the actuator. The method is particularly useful for working arms made from light weight composite materials in the form of a matrix of fibers in a resin material which is susceptible to impact damage which may not be visible.
A method of detecting damage to a structural member which is part of a working arm of a working apparatus, which arm is moveable relative to a body of the apparatus by an actuator, the arm in use, carrying at an outer end thereof, a load, the method including the steps of:
A method of detecting damage to a boom section of a telescopic boom on a load handling machine of the kind which carries a load at an outer end of said boom, which boom section is moveable by an actuator relative to the load handling machine, said load handling machine being movable over the ground on a ground engaging structure, the method including the steps of:
Dependencies are inferred from the claim text.