Drill stand with an automatic advancement device for a drilling machine
OwnerArmand Langinventor
Life of this patent
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Abstract
A drill stand for a hand-held drilling machine (30) has a length-variable support (2, 4), on which a clamping chuck (20) for the drilling machine (30) is mounted in a displaceable manner. A spring (50) presses the drilling machine (30) in the advancement direction. The drilling machine (30) is raised, via the spring (50), by means of an adjustable adjustment unit (40) on the support (2, 4), and the spring (50) is compressed in order to produce the advancement force.
Claims12
Drill stand adapted to mount a drill, having a variable-length pillar-type support, comprising two telescopically adjustable rods adapted to engage two fixed surfaces of a drilling site, a drilling machine supporting device axially displaceably mounted on one of the two rods, an adjustment unit axially movable and lockable on said one rod, and a compression advancement spring arranged on said one rod between said supporting device and said adjustment unit whereby axial displacement of said adjustment unit on said one rod towards said drilling machine supporting device causes said compression advancement spring to be preloaded when said drill engages a surface to be drilled and thereby causes said supporting device and said drilling machine supported thereto to slide along said one rod in a drill advance direction during the drilling operation.
Dependencies are inferred from the claim text.