| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hoisting machine of cranes, which is capable of uncovering a brake cover without scattering powder dust in a clean room and performing a maintenance work of a brake section. <P>SOLUTION: The hoisting machine 3 has a composition where the brake cover 31 covers the brake section 12 including a rotor 21 fixed to a motor shaft 11a of a motor section 11 to be rotated integrally and a brake lining pressed against the rotor 21. Furthermore, the brake cover 31 includes a storing section 32 prepared at a site facing outside of a radial direction of the rotor 21 so as to dent to a disengaging direction toward outside of the radial direction from the rotor 21 and a sucking section 41 openable through communicating between the storing section 32 and a cover external. Thereby, the powder dust produced from abrasion of the brake lining can be accumulated in the storing section 32 to be sucked out from the sucking section 41. <P>COPYRIGHT: (C)2012,JPO&INPIT |
