Personal Equipment for Low Seam Coal Miners. 8. Improved Traction Rubber Boot Soles

摘要

Based on laboratory and preliminary field tests of off-the-shelf stel-toed rubber boots, a molded sole design was developed to provide increased traction over conventional calendared sole miners boots. The pattern provided sharp edges perpendicular to both lateral and fore-aft slip vectors. The sole was designed to reduce mud caking. An instep lace-up capability was added to better secure the foot inside the boot. A 5-month field evaluation compared the prototype boots to the boots the participants usually wear.