Patent ID: 9726559
Date: 2017-08-08
CPC Classifications: G01G,G01L

Claim:
1. Load cell for weight measurement comprising: a load beam which has a stationary ground side at one end thereof and a force application side that can be moved in a force application direction at an opposite end thereof, wherein the force application side is connected to the ground side via a deformation area which has two parallelogram links, running parallel to each other and spaced apart from each other in the force application direction, which are arranged parallel to a center plane of the load beam running transverse to the force application direction and wherein in the deformation area a material-free first recess and a material-free second recess are arranged lying one above the other in the force application direction and the first recess and the second recess are in each case designed directly adjoining a parallelogram link, wherein the load beam has an overload protection which comprises a bar, running parallel to the center plane, which separates the first recess from the second recess and the outer sides of which, running parallel to the center plane, are designed rectilinear, and the bar either and the upper air gap and the lower air gap open into a third recess, arranged in the area of the end-face end of the bar, wherein the third recess has a round contour and the end-face end of the bar forms a section of the round contour.