FIELD: transportation.
SUBSTANCE: device contains the base and the force pickup attached thereto, two support elements and the deformable element connecting free ends of the support elements and attached, by its central part, to force pickup. The device additionally contains the electronic device made to compare the force pickup output signal with that corresponding to the maximal lifting capacity of the mechanism, and to generate the signal to lock its operation, and/or a warning light and/or sound signal depending on results of this comparison. The device, a second version, contains the force pickup, two support elements and two deformable elements jointing the support elements. The force pickup is attached to the central parts of deformable elements. One deformable element is made either elastic or in the form of rigid parts with elastic hinges.
EFFECT: higher safety in operation of the load-lifting mechanism and accuracy of measurement of the cable tension.
12 cl, 3 dwg
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