| 摘要 |
The invention concerns a hydraulic system for moving automatic closing apparatuses, comprising hydraulic actuating means (4, 5, 9) capable to move at least one movable member (6, 19) coupled to at least one closing apparatus, characterised in that said hydraulic actuating means (4, 5, 9) is operated by at least one low voltage dc motor (3). Preferably, the electronic unit (16) controls, through an encoder (13, 14) and microswitches (10, 11), the position of a piston (6) or a rotating shaft (19) that operates the automatic closing apparatus during closing and opening phase, favouring an automatic learning of operation times. |
