| 摘要 |
<p>An automatic device (10) which can be used for sheet (20) covering/uncovering of industrial vehicles such as trucks, lorries, trailer-trucks, tractor semitrailers and alikes, said covering sheets (20) having the function of protecting goods during hauling and having to be removed during the loading and unloading phases. Said automatic device (10) comprises at least a pair of oscillating arms (11) capable of supporting a roll (19) for wrapping/unwrapping said sheet (20) placed along the length of the body of a given vehicle; the lower end (12) of said oscillating arms (11) is engaged in a middle area of the front and back (13) sides of the body of said vehicle. Said automatic device comprises first motor means (14) capable of inducing said at least one pair of oscillating arms (11) to rotate, and second motor means (26) capable of inducing said roll (19) to rotate. Said automatic device (10) is also provided with a feeding (21) which is common to said first (14) and second (26) motor means, so that said first motor means (14) are constantly in operation throughout the whole duration of the wrapping and unwrapping of said sheet (20), and said second motor means (26) are in operation during the sheet (20) wrapping phase. <IMAGE></p> |
