Work environment of processor operators
- 35 Downloads
Seven processor operations were investigated to examine the work environment of the processor operator. The invisible objects in the visual field of four processors were the jib, head, instrument for measuring logs, wiper, and cabin. The operator looked mostly at “the head of the processor” during delimbing, bucking and arranging; “the delimbed tree-length log for bucking” during delimbing and bucking; “the bucked log” during bucking and arranging; and “the sides of the road” during moving and skidding. From the frequency of fixation for each fixated object, the instrument for measuring logs and the head was found to require the most attention. The height of three processors’ steps for “mounting and alighting” were higher than the optimum value (58 cm), obtained from an anthropometric investigation of forest machine operators. The levers and pedals of four processors were arranged at suitable positions, according to JIS guidelines.
Key wordseye fixation field of vision height of step layout of controls processor
Unable to display preview. Download preview PDF.
- Hansson, J.E. and Pettersson, B (1990) An ergonomic checklist for transport and materials—handling machinery. 43pp, The National Institute of Occupational Health. The Forest Operations Institute of Sweden, The College of Forestry and Swedish University of Agricultural Sciences.Google Scholar
- JIS (1990) Excavators-operator’s controls. Japanese Industrial Standards Committee, Tokyo, A 8405. (in Japanese)Google Scholar
- Morgan, C.T., Cook, J.S.III, Chapanis, A., and Lund, M.W. (1963) Human engineering guide to equipment design. 539pp, Corona, Tokyo, (in Japanese)Google Scholar
- Murata, T. (1973) Statistical aspect of driver’s eye-movement. Proc. 213rd Jpn. Soc. Civ. Eng.: 55–63. (in Japanese)Google Scholar
- Toyokawa, K. (1982) Survey of driver’s ergonomical concerns regarding forest machinery. Trans. 93rd Annu. Meet. Jpn. For. Soc.: 501–502. (in Japanese)Google Scholar
- Toyokawa, K. (1992) A fundamental study on the work environment of the yarder operator II—An evaluation of the yarding operation on human engineering. Bull. For. For. Pro. Res. Inst. 362: 70–78. (in Japanese with English summary)Google Scholar