CARRETTO A MANO, PARTICOLARMENTE ADATTO PER SALIRE E SCENDERE SCALE.

摘要

For negotiating stairs a trolley 10 is provided with three overlapping pairs of wheels 11, 18, 19 the tangential plane 20 to which is at an acute angle of about 30 DEG to the back part 13 of the frame 12. In normal use the wheels 18, 19 are off the ground so that trolley 10 can be easily manoeuvred on front wheels 11.