FIELD: machine engineering, possibly mounting-dismounting operations in restricted space.
SUBSTANCE: wrench includes handle with head in its end. On inner surface of head ratchet is placed; said ratchet has internal gear teeth with large pitch. There are two discs with pawls in annular cavity of head; number of pawls of each disc is different. Said discs are rigidly joined one with other in such a way only two pawls of disc have the same rotation axis; remaining rotation axes of disc pawls are shifted relative to rotation axes of adjacent pawls of disc by value of minimum pitch of mounting wrench. All pawls are forced to teeth of ratchet by means of elastic members.
EFFECT: improved design providing minimum pitch of wrench with possibility of changing it.
2 dwg
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