Naslov
Determining Reaction Abilities of Sewing Machine Operators in Joining Curved Seams

Autori
Firšt Rogale, Snježana ; Dragčević, Zvonko ; Rogale, Dubravko

Izvornik
International Journal of Clothing Science and Technology (0955-6222) 15 (2003), 3/4; 179-188

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
garment technology; necessary and maximal reaction abilities; curvature radius

Sažetak
In accordance with his/her psycho-physical abilities and degree of skill, regulating system in the operator&#8217 ; ; s brain will match the speed of sewing operations, e.g. actual machine stitching speed, using a simple movement of the foot, to adapt it to his/her sensory and motoric reaction abilities. Workpiece in sewing is fed employing three degrees of movement freedom, i.e. using three independent regulating circuits: position of the seam, edges and workpiece layer length. Cybernetic bases of the regulating system man-machine-workpiece are presented, as well as the development of the necessary and maximum possible sewing machine operator&#8217 ; ; s reactions in joining curved seams. The procedure is explained of constructing a mathematical model and obtaining the equations used in calculating necessary and maximum operator&#8217 ; ; s reaction abilities. Measurements necessary were performed in the Department of Clothing Technology, Faculty of Textile Technology, University of Zagreb, using modern measuring equipment while garment-sewing processes were recorded under actual in-plant conditions. The results obtained were computer-processed and a 3D graphic representation obtained, together with a mathematical model appropriate to calculate interdependence of the parameters mentioned. Appropriate software package was developed, allowing for a quick, accurate and continuous determination of normal machine-hand times, as dependent upon all the influential parameters.

Izvorni jezik
Engleski

Znanstvena područja
Tekstilna tehnologija

POVEZANOST RADA