Drilling device for producing drilled holes with an undercut

Details Drilling device for producing drilled holes with an undercut Drilling device for producing drilled holes with an undercut

1996-04-16

1997-12-30

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool-support with means to move tool relative to tool-support

To move radially

468159, 468180, 468236, 82 15, B23B 4100

Patent

active

057022127

ABSTRACT:
In a drilling device for producing drilled holes with an undercut, in particular in facing panels of stone, ceramics, concrete or similar materials a drive motor of a drilling shaft is mounted so as to swivel, is displaced outward by a sloping surface, and is driven by a lead screw gear unit to perform a precession movement.

REFERENCES:
patent: 4195957 (1980-04-01), Wittkopp et al.
patent: 4487275 (1984-12-01), Froehlich
patent: 4613262 (1986-09-01), Woods
patent: 5226763 (1993-07-01), Lind
patent: 5462393 (1995-10-01), Eischeid
patent: 5544989 (1996-08-01), Erath

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