Patent ID: 7493834

Claim:
Load cell for elevators which suspends elements of the load, to transform the variations of the deformation experienced as a consequence of the variations of the applied load into electrical signals of an appropriate size for its furnishing to an external means of measurement and control, a load measuring cell including a solid elastic metallic body, and a space for the incorporation of a strain gage, and wherein said body contains three elements in the form of pivots or stubs solidly attached to the body, perpendicular projecting at the body and disposed in non-aligned longitudinal positions, wherein a suspending belt, to which the cell couples, passes across the said pivots or stubs, passing in a form successively alternating with regard to the mentioned pivots or stubs, being the load cell conceived for its utilization with devices of suspended loads by planar elements, characterized in that: additionally to the mentioned cell body ( 1 ), the load cell comprises a second element consisting of an enclosure casing ( 2 ) and constructed for its coupling with the said body; the pivots or stubs of adaptation to the suspending belt consist of pivot rods ( 5 ) with a smooth surface, free of recesses or any other groove, and being dimensioned so that they extend to the total width of the belt ( 9 ) to which they adapt themselves; the casing ( 2 ) is of a general prismatic form, furnished with openings ( 6 a, 6 b ) in both a top base and a bottom base, dimensioned for admitting the path of the suspending belt ( 9 ), and being the mentioned casing furnished in the internal faces of two larger side walls, in the neighboring zones to the open bases for access, with a zone ( 8 ) recessed at each side of said openings, dimensioned to couple with the body ( 1 ) of the cell, wherein said casing receives, lodges, and retains the body ( 1 ) during the condition of operative mounting of the cell.