Aperture Sizes and Depths of Reach for One- and Two-Handed Tasks.

摘要

The report presents data on (1) the optimal sizes and locations of maintenance apertures, and (2) man's working-reach distances through such apertures, for both the shirt-sleeved and the pressure-suited conditions. In all cases, the vertical dimension of the aperture permits the technician to maintain simultaneous visual and manual contact with the task area. Data include Depth of Reach, Breadth of Aperture, Vertical Dimension of Aperture, and distances to the floor from both the lower and the upper edges of these apertures. Different apertures provide for forward or lateral reaches, in the standing or seated position, with one or both arms. Data are reported in the 5th, 25th, 50th, 75th and 95th percentiles. Ranges, Means and Standard Deviations are given. Recommendations are made regarding the appropriate application of maintenance accesses. (Author)