ABSTRACT
The operations of stapling covers on the foam present very significant working constraints assessed at the maximum level of hardness and risk, measured with the internal screening tool based on the RULA method. A physical and physiological measurement campaign was launched so as to define the level of hardness during concerned operations (stapling covers on foam during car-seat production). The measurements carried out in real field conditions concerned the forces applied on the stapler, the pressure exerted on the stapler by the operator’s hand, the bioelectric muscle activities (EMG) and the biomechanical parameters of joint angulation. Biometrics system was used for the measurements and data processing was carried out with CAPTIV software. The results allowed us to observe that the forces applied on the stapler are excessive. On the other hand, the repetitiveness and the postural constraints should be considered as moderate, according to European standards EN1005.
