HOLDER FOR MANUAL DRILL AND SCREWDRIVER SHARPENING.
FIELD: mechanics; instrumentation.
SUBSTANCE: holder for manual drill andscrewdriver sharpening consists of a base
with aV-groove arranged along the whole of its length for accommodation and
fixation of the tools being sharpened, front guides and a tool holding and
clamping fixture. The flat polygon-shaped base is fabricated of a sheet material
and additionally equipped with rear guides. The front and the rear
guides are positioned so that to form the polygon angles lying on the polygon
longitudinal symmetry axis. The tool holding and clamping fixture may be
dismantled for mounting on the polygon top.
The angles formed by the polygon front guides and additional rear guides
correspond to the point angles of tools being sharpened (the drill and the
Phillips screwdriver accordingly).
EFFECT: refined precision of positioning of the tool being sharpened due to
reliable holding and fixation; extension of the holder functional capabilities
due to compatibility with a wider range of instrument design modifications. 4 cl,
Vladimir Aleksandrovich (RU)
Patent ¹ 2348499
Publishing date: April 22, 2009
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