Guide assembly for a core bit
OwnerWerner Britten, Hans-Werner Bongers-Ambrosius +1inventors
InventorsWerner Britten, Hans-Werner Bongers-Ambrosius, Sabine Doberenz
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Abstract
A guide assembly (1) for a core drill bit (2), which is at least partially guided at an inner wall (3) of the core drill bit (2) and projects radially with projections (10) between the plurality of cutting inserts (5) arranged on a frontal surface of the drill tube (4) of the core drill bit (2), wherein a centering means (6) projects at least axially, in part, beyond the cutting inserts (5), whereby the centering means (6) is shorter than the axial length (L) of the drill tube (4), and is axially spring-biased inside the guide assembly (1) and has limited axial displacement.
Claims12
A guide assembly (1) for a core drill bit (2) being at least partially axially guided on an inner wall (3) of the core drill bit (2) and projecting with projections (10) positioned radially between a plurality of cutting inserts (5) disposed at a frontal end of a drill tube (4) of the core drill bit (2), wherein a protruding coaxial centering means (6) at least partially projects beyond the cutting inserts (5), and wherein the centering means (6) is shorter than an axial length (L) of the drill tube (4) and is axially spring-biased inside the guide assembly (1) and has limited axial displacement.
Dependencies are inferred from the claim text.