| 摘要 |
FIELD: portable petrol power tools. SUBSTANCE: control handles of petrol power saw are made of elastic polymeric material, for instance, polyurethane, and have spherical-shaped gas cells unevenly distributed in handle thickness with decreasing density from the inner to outer surface, isolated from one another. The total volume of cells makes up 0.4 to 0.6 of the total volume of the handle. The inner surface of the handle is made with open gas cells, and the handle outside diameter makes up 1.4 to 1.6 of the diameter of the tube of the saw bed frame. EFFECT: enhanced convenience in use. 2 dwgn
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