多様な事務作業に適した連動ニ段机の開発

摘要

Writing by hand and reading papers are still popular tasks in computerized recent offices. Suitable computer equipment layout and desk condition for these work were proposed from experimental study. The condition to reduce physical burden during PC (Personal Computer) work is as follows : the armrest and keyboard declining angles are 3° and 10° respectively, and the height from seat surface to keyboard front edge is 180 — 260 mm. By adjusting the display distance, burden of the neck was reduced during typing and data analysis tasks. While writing, the desk height must be 60-80 mm higher than PC task condition, and inclining the desk angle 10 improves visibility and reduces arm burden. To achieve both PC and writing tasks in a single desk, the synchronized double-board desk was developed. This desk can reduce muscular burden of neck and shoulders, by avoiding forward lean of neck and rise of shoulders.