Izbira sekaške sekire glede na jakost tresenja in obremenitve ledvenega dela : diplomsko delo - univerzitetni študij - 1. stopnja = Choosing a woodcutters axe according to the hand-arm vibrations and spinal loads : B. Sc. Thesis - Academic Study Programmes
Kocjančič, Luka
V diplomski nalogi ugotavljamo vpliv vrste lesa ročaja sekire, njegove dolžine in mase glave na obremenitve sekača s tresenjem in obremenitve ledvenega dela hrbta. Raziskava je potekala v dveh delih, ...in sicer v obliki kontroliranega testa in sečnje v gozdu. V raziskavo smo vključili štiri sekire, ki so se razlikovale po dolžini (70 in 90 cm) in vrsti ročaja (jesen in bukev) ter masi glave (1,2 in 1,8 kg). Pri testu smo dodatno preverili vpliv vrste klina (plastičen, lesen in kovinski) na jakost tresenja sekire. Rezultati so pokazali, da na jakost tresenja vplivajo vsi preučevani dejavniki, in sicer so jakosti večje pri uporabi jesenovega ročaja, krajšega ročaja, težje glave sekire in pri uporabi kovinskega klina. Obremenitve ledvenega dela hrbta so nasprotno manjše pri sekirah z manjšo maso glave in krajšo dolžino ročaja. Kot optimalno sekiro za naganjanje predlagamo sekiro z bukovim ročajem ter lahko glavo, dolžina ročaja pa naj bo čim daljša, vendar skladna s sekačevimi antropometričnimi lastnostmi.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [L. Kocjančič], 2018
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