| 摘要 |
FIELD: tools.SUBSTANCE: invention relates to ice destruction hand-held percussion tools. Tool comprises guide rod, working member with sharpened part, impact element and thin-walled pipe, rigidly fixed on impact element, in cavity of which said guide rod is arranged. Impact element is made with possibility to fall along rod axis and impact action on working element. On thin-walled pipe surface brake is fixed. Along thin-walled pipe generatrix partial cutout is made accommodating spring-loaded brake lever. Braking device is made in form of two straight rods and two shells rigidly interconnected into frame, connected with said thin-walled pipe. Brake lever is made with friction coating on its inner surface and connected with brake device by means of resilient element.EFFECT: result is higher working efficiency.1 cl, 3 dwg |
