Work environment of processor operators |
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| Authors: | Toyokawa Katsumi |
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| Institution: | (1) Forestry and Forest Products Research Institute, 305-8687 Ibaraki, Japan |
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| Abstract: | 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. |
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| Keywords: | eye fixation field of vision height of step layout of controls processor |
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