izpis_h1_title_alt

Izbira sekaške sekire glede na jakost tresenja in obremenitve ledvenega dela
Kocjančič, Luka (Author), Poje, Anton (Mentor) More about this mentor... This link opens in a new window

.pdfPDF - Presentation file, Download (1,70 MB)

Abstract
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.

Language:Slovenian
Keywords:predsečnja, sekira, naganjanje, obremenitev s tresenjem, obremenitve ledvenega dela
Work type:Bachelor thesis/paper (mb11)
Organization:BF - Biotechnical Faculty
Year:2018
COBISS.SI-ID:5181606 Link is opened in a new window
Views:846
Downloads:217
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Secondary language

Language:English
Title:Choosing a woodcutters axe according to the hand-arm vibrations and spinal loads
Abstract:
In the graduation thesis the influence of the type of the axe’s handle, its length and the weight of the head on exposure to hand-arm vibration (HAV) and the load of lower back were examined. The research was carried out in two parts, in the form of a controlled test and logging in the forest. Four axes, varying in length (70 and 90 cm), in type of handle (ash and beech) and in weight of the head (1.2 and 1.8 kg) were included in the study. In addition, we examined the influence of the wedge type (plastic, wooden and metal) on exposure to HAV. The results showed that exposure to HAV are influenced by all factors studied. The HAV values are greater when using the ash handle, shorter handle, heavier head and when using a metal wedge. The lumbar spine loads are oppositely smaller when axes with lower head weight and shorter length of the handle were used. As an optimum axe, we recommend a beech handle with a lightweight head, the length of the handle should be as long as possible, but consistent with the cutter's anthropometric measures.

Keywords:prefelling, axe, felling, vibration exposure, lower back strain

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back