| 摘要 |
<p>A foldable maize picking head, in which, to actuate the mobile parts (5) of the head (1), an oleodynamic cylinder (11) with a piston (13) is provided, one on each side, having integral, next to its free end (15), a rack (17) engaged to a gear wheel (19) integral with the mobile part (5): the axial movement of said rod (13) integral with said rack (17) engaged to said gear wheel (19) generating this latter one's rotation and consequently the actuation of the mobile part (5). To operate the locking device for mobile parts (5) of the head (1) in their open position, another oleodynamic cylinder (25) with piston (27) is provided, one on each side, also placed next to the mobile part (5) to be locked, the free end (29) of the rod (27) composing the male element to be inserted into the slot (31) of said mobile part (5). <IMAGE></p> |
