| 摘要 |
<p>The invention concerns a display device comprising at least a roll (3) and means for coupling the first roll (3) to a first motor spindle (18); the coupling means consist of a shaft end (10) integral with the roll (3), comprising a flat surface (25), the corresponding motor spindle (18) end being provided with a similar flat surface (22) and a cylindrical sleeve (23) sliding on the spindle (18) end, between a first position wherein it uncovers the flat surface (22) and in a second position wherein it covers it at least partially, a return elastic member (24) connected between the spindle (18) and the sleeve (23) tending to place said sleeve (23) in its second position</p> |
