| 摘要 |
Invention relates to the hand tools. Installation spanner wrench contains handle, which one end is made in the form of semicircular fixed clamp, and hook, which contains working part and connecting piece. The latter is made as a fork; hook is hingedly attached on the handle with the help of connecting element with possibility of displacement along the handle. The working surfaces of hook are made as rectilinear faces located at obtuse angle to each other. Working surfaces of hook and fixed clamp contain teeth. In the handle, at equal distance from each other, are arranged the openings with possibility of positioning in them the connecting element of hook. The first opening is located near the fixed clamp. The distance between the openings is equal to the length of the face of hook. On the working part of the hook is arranged at least one slant. The minimum thickness of the working part of the hook is not smaller than the thickness of the working surface of clamp. The enhancement of functional possibilities at increase of the service life of the wrench is technical result. |
