| 摘要 |
<p>An electric hoist (1) with an electric motor, a gear reducer and a chain (6) with a hook (7), as well as a suspension hook (2) for hanging the said hoist. A completely safe unit is presented, with a device with movable guides (24) that stops the electric motor when any of the chain links (41) are incorrectly positioned, as well as another safety device against overloads arranged on the suspension hook shaft. The unit is completed by the hoist body provided with closing covers, as well as a special bag (3) for the chain, which adjusts to the normal working position of the appliance, and also to its inverted working position. <MATH></p> |
