The dimensional compatibility between the cashiers
structural anthropometry and the workspace dimensions
was evaluated using a scaled drawing of the
existing checkstand which was prepared from the actual
measurements taken at the site. In the original setting,
the conveyor belt height was fixed at 92.5 cm. Adding
an additional average product height of 15 cm, the
average working height was found to be quite high for
most of the cashiers. A 5th percentile female reach
envelope superimposed on the plan view of the existing
layout revealed that rather a small area over the
conveyor belt would be within the reach of the cashiers.
As a result, frequent extreme flexion of the cashier’s
torso was inevitable to pick the grocery items from the
conveyor. The cash box, keyboard, printer and code
catalogue were located on a cabinet which was placed
laterally to the normal working posture of the cashiers.
The keyboad and code catalogue were frequently used
by the cashier. The layout of these items involved an
awkward twisting posture for the cashiers. The weigh-scale
was placed on a platform located near the
shoulder height and to the right side of the cashier.
Consequently, the weighing operation involved lifting
of the products above the s$oulder level combined with
twisting of torso. The height of the price display unit
created a 25” upward gaze from the horizontal. During
the scanning of grocery products, the cashiers frequently
needed to glance at the display to verify the proper
entry of the items. As the display location was almost
behind the normal viewing direction, frequent turning
of head was involved.
The dimensional compatibility between the cashiersstructural anthropometry and the workspace dimensionswas evaluated using a scaled drawing of theexisting checkstand which was prepared from the actualmeasurements taken at the site. In the original setting,the conveyor belt height was fixed at 92.5 cm. Addingan additional average product height of 15 cm, theaverage working height was found to be quite high formost of the cashiers. A 5th percentile female reachenvelope superimposed on the plan view of the existinglayout revealed that rather a small area over theconveyor belt would be within the reach of the cashiers.As a result, frequent extreme flexion of the cashier’storso was inevitable to pick the grocery items from theconveyor. The cash box, keyboard, printer and codecatalogue were located on a cabinet which was placedlaterally to the normal working posture of the cashiers.The keyboad and code catalogue were frequently usedby the cashier. The layout of these items involved anawkward twisting posture for the cashiers. The weigh-scalewas placed on a platform located near theshoulder height and to the right side of the cashier.Consequently, the weighing operation involved liftingof the products above the s$oulder level combined withtwisting of torso. The height of the price display unitcreated a 25” upward gaze from the horizontal. Duringthe scanning of grocery products, the cashiers frequentlyneeded to glance at the display to verify the properentry of the items. As the display location was almostbehind the normal viewing direction, frequent turningof head was involved.
การแปล กรุณารอสักครู่..
