| 摘要 |
FIELD: means of protection. ^ SUBSTANCE: mechanical self-rescuer by Bobrovskikh comprises trigger self-blocking mechanism, including the following components arranged with the possibility of rotation around their axis - guiding run-through-pressing stainless steel roller with radius of less than halliard diametre, bracket and coil, which are reliably fixed with safety hook. ^ EFFECT: reliability and convenience of use. ^ 6 cl, 18 dwg |
