FIELD: mechanical engineering. SUBSTANCE: impact wrench is mounted on unscrewed nut 13. When button 11 is pulled back the undermining of powder charge 7 is exercised with the aid of block 9. Under the action of powder gases striker 5 delivers a blow on protrusion 4 of girdle 2 producing thus the stripping of the "sticked" nut. The limited turn of girdle 2 in casing 1 allows to unscrew nut 13 after the stripping in a usual way using the impact wrench as a usual key. EFFECT: facilitated manufacture. 1 cl, 1 dwg
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Authors
Dates
1995-02-20—Published
1992-05-07—Filed