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OWAS analiza
Maribor, marec 2015
Ema Komar
Ergonomski testi in
ocenjevalni postopki
• vsaka drža človeka, ki traja dalj časa, je prisilna
drža
• človek se počuti prijetno, kadar ni telesno in
duševno utesnjen, se lahko sproščeno vede in
poljubno menja drže telesa
• prisilne drže se pojavljajo predvsem zaradi
konstruktivnih pomankljivosti strojev, naprav,
miz, stolov, slabih načinov dela ...
Posledice položajev
• enostransko krivljenje
hrbtenice – tvorba
izrastkov, ki pritiskajo na
hrbtenični živec
• predolga stoja – zvišanje
krvnega pritiska v nogah
in posledično nastanek
krčnih žil
• predolgo sedenje –
prebavne motnje in
oviranje pretoka krvi
delovno mesto je
potrebno oblikovati
tako, da se tudi ugodne
drže telesa menjavajo
Modificirana metoda OWAS
• OWAS (Ovako Working Analysing System)
• opazovalna metoda za analizo telesnih
položajev
• Razdelitev delovnih položajev in drž:
– 4 vzorci hrbtenice
– 4 vzorci drže zgornjih udov
– 3 vzorci drže rok
– 7 vzorcev drže spodnjih udov
– 5 vzorcev drže glave oz. vratu
Hrbtenica in zgornji udi
• pokončna drža hrbtenice,
pripogib manjši od 15°
• sklonjena drža, pripogib
večji od 15°
• drža s torzijo ali stranskim
upogibom, večjim od 30°
• sklonjena drža z upogibom
večjim od 15° in manjšim
od 30°, kombinirana s
torzijo/stranskih upogibom
• obe nadlahti ob trupu
• ena nadlahet ali obe aktivno
odročeni (pod nivojem
ramen)
• ena nadlahet nad nivojem
ramena
• obe nadlahti nad nivojem
ramen
Spodnji udi
• sedenje fiziološko in
nefiziološko
• stoja, oba uda sta
iztegnjena, oba uda sta
iztegnjena
• stoja na enem iztegnenem
spodnjem udu (npr.
aktiviranje pedala)
• stoja na enem ali obeh udih,
izrazito upognjena (npr. faza
dviganja)
• klečanje in čepenje
• hoja po ravnem in
vzpenjanje po strmini do
30°
• sedenje na tleh
• ležanje
• plazenje, plezanje (strmina
nad 30°, stopnice, lestev ...)
Glava in roki
• pokončni, nevtralni
položaj
• nad trebuh (vertikalno)
sklonjena nad 30°
• stransko nagnjena nad
30°
• dorzalno upognjena nad
30°
• rotirana nad 45°
• fini ali grobi prijem ene
roke ali obeh rok
• tipkanje z enim prstom
ali več prsti ene roke ali
obeh rok
• druge aktivnosti ene
roke ali obeh rok
(vlečenje)
Izdelava OWAS analize
• opazovanje posnetka in beleženje položajev
telesa v enakih časovnih intervalih (nekaj
sekund)
• izračun procentnih deležev in trajanje
posameznih gibov glede na celotni delovni čas
• vnos rezultatov v ocenjevalno lestvico, ki nam
za vsak gib pove:
– ukrepi niso potrebni 
– ukrepi potrebni v doglednem času 
– ukrepi so potrebni takoj 
– potrebno je natančnejše raziskovanje 
OWAS analiza izdelave
palete
• analiza gibov za proces nošenja desk za proces
žaganja
• analiza gibov za proces vrtanja letev (poz 3)
• analiza gibov za proces montaže letev (poz 3)
na podloge
• merjenje v časovnem intervalu 3 sekunde
• predpostavka, da vsak delovni proces v sklopu
delovnega časa traja 4 ure (240 min)
Analiza gibov za proces
nošenja desk za proces žaganja
Ukrepi
• namesto nošenja vsake deske uporaba
visokega vozička, na katerega se zložijo deske
in se odpeljejo na proces žaganja
• višje police na katerih so deske, da se delavcu
ni potrebno toliko pripogibati
Analiza gibov za proces
vrtanja letev (poz 3)
Ukrepi
• prilagoditev višine mize, na kateri delavka vrta
• uporaba namiznega vrtalnika ali uporaba
ročnega vrtalnika, pritrjenega na vzmet, ki visi
nad delovno mizo
Analiza gibov za proces
montaže letev (poz 3) na podloge
Ukrepi
• prilagoditev višine površine, na kateri poteka
montaža palete
• uporaba vozička za orodje
• koš za odlaganje odrezkov
Programsko orodje Jack
• izdelava OWAS analize s programskim orodjem
Jack
• najprej izdelava delovnega mesta, potem
vstavimo delavca in določimo njegove gibe
Hitra ERGO
analiza
Vir: projekt ZZZS,
ERGORISK

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OWAS Analysis (slovenian version)

  • 2. Ergonomski testi in ocenjevalni postopki • vsaka drža človeka, ki traja dalj časa, je prisilna drža • človek se počuti prijetno, kadar ni telesno in duševno utesnjen, se lahko sproščeno vede in poljubno menja drže telesa • prisilne drže se pojavljajo predvsem zaradi konstruktivnih pomankljivosti strojev, naprav, miz, stolov, slabih načinov dela ...
  • 3. Posledice položajev • enostransko krivljenje hrbtenice – tvorba izrastkov, ki pritiskajo na hrbtenični živec • predolga stoja – zvišanje krvnega pritiska v nogah in posledično nastanek krčnih žil • predolgo sedenje – prebavne motnje in oviranje pretoka krvi delovno mesto je potrebno oblikovati tako, da se tudi ugodne drže telesa menjavajo
  • 4. Modificirana metoda OWAS • OWAS (Ovako Working Analysing System) • opazovalna metoda za analizo telesnih položajev • Razdelitev delovnih položajev in drž: – 4 vzorci hrbtenice – 4 vzorci drže zgornjih udov – 3 vzorci drže rok – 7 vzorcev drže spodnjih udov – 5 vzorcev drže glave oz. vratu
  • 5. Hrbtenica in zgornji udi • pokončna drža hrbtenice, pripogib manjši od 15° • sklonjena drža, pripogib večji od 15° • drža s torzijo ali stranskim upogibom, večjim od 30° • sklonjena drža z upogibom večjim od 15° in manjšim od 30°, kombinirana s torzijo/stranskih upogibom • obe nadlahti ob trupu • ena nadlahet ali obe aktivno odročeni (pod nivojem ramen) • ena nadlahet nad nivojem ramena • obe nadlahti nad nivojem ramen
  • 6. Spodnji udi • sedenje fiziološko in nefiziološko • stoja, oba uda sta iztegnjena, oba uda sta iztegnjena • stoja na enem iztegnenem spodnjem udu (npr. aktiviranje pedala) • stoja na enem ali obeh udih, izrazito upognjena (npr. faza dviganja) • klečanje in čepenje • hoja po ravnem in vzpenjanje po strmini do 30° • sedenje na tleh • ležanje • plazenje, plezanje (strmina nad 30°, stopnice, lestev ...)
  • 7. Glava in roki • pokončni, nevtralni položaj • nad trebuh (vertikalno) sklonjena nad 30° • stransko nagnjena nad 30° • dorzalno upognjena nad 30° • rotirana nad 45° • fini ali grobi prijem ene roke ali obeh rok • tipkanje z enim prstom ali več prsti ene roke ali obeh rok • druge aktivnosti ene roke ali obeh rok (vlečenje)
  • 8.
  • 9. Izdelava OWAS analize • opazovanje posnetka in beleženje položajev telesa v enakih časovnih intervalih (nekaj sekund) • izračun procentnih deležev in trajanje posameznih gibov glede na celotni delovni čas • vnos rezultatov v ocenjevalno lestvico, ki nam za vsak gib pove: – ukrepi niso potrebni  – ukrepi potrebni v doglednem času  – ukrepi so potrebni takoj  – potrebno je natančnejše raziskovanje 
  • 10. OWAS analiza izdelave palete • analiza gibov za proces nošenja desk za proces žaganja • analiza gibov za proces vrtanja letev (poz 3) • analiza gibov za proces montaže letev (poz 3) na podloge • merjenje v časovnem intervalu 3 sekunde • predpostavka, da vsak delovni proces v sklopu delovnega časa traja 4 ure (240 min)
  • 11. Analiza gibov za proces nošenja desk za proces žaganja
  • 12.
  • 13. Ukrepi • namesto nošenja vsake deske uporaba visokega vozička, na katerega se zložijo deske in se odpeljejo na proces žaganja • višje police na katerih so deske, da se delavcu ni potrebno toliko pripogibati
  • 14. Analiza gibov za proces vrtanja letev (poz 3)
  • 15.
  • 16. Ukrepi • prilagoditev višine mize, na kateri delavka vrta • uporaba namiznega vrtalnika ali uporaba ročnega vrtalnika, pritrjenega na vzmet, ki visi nad delovno mizo
  • 17. Analiza gibov za proces montaže letev (poz 3) na podloge
  • 18.
  • 19. Ukrepi • prilagoditev višine površine, na kateri poteka montaža palete • uporaba vozička za orodje • koš za odlaganje odrezkov
  • 20. Programsko orodje Jack • izdelava OWAS analize s programskim orodjem Jack • najprej izdelava delovnega mesta, potem vstavimo delavca in določimo njegove gibe