HOLE SAW, IN PARTICULAR HOLE SAW FOR REINFORCED CONCRETE

The invention relates to a drill bit (1), in particular a ferroconcrete drill bit for rotary or rotary percussion drilling of ferroconcrete or other reinforced materials, wherein the drill bit (1) comprises a clamping shank (2), a drill sleeve (3) having a drill sleeve bottom (4) and a drill sleeve...

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Bibliographic Details
Main Authors FLUHR, HARRY, SCHLACHTER, ANDREAS, DUSCHA, HELMUT, WIDMANN, RAINER
Format Patent
LanguageEnglish
French
German
Published 02.07.2014
Subjects
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
WORKING CEMENT, CLAY, OR STONE
WORKING STONE OR STONE-LIKE MATERIALS
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Summary:The invention relates to a drill bit (1), in particular a ferroconcrete drill bit for rotary or rotary percussion drilling of ferroconcrete or other reinforced materials, wherein the drill bit (1) comprises a clamping shank (2), a drill sleeve (3) having a drill sleeve bottom (4) and a drill sleeve jacket (5) and at least two teeth (6; 6a, 6b), wherein the teeth (6; 6a, 6b) are arranged on a free, circular ring-shaped end face (11) of the drill sleeve jacket (5) and wherein each tooth (6; 6a, 6b) projects beyond the end face (11) of the drill sleeve jacket (5) in the advancing direction (x). A deflector (7; 7a, 7b) is mounted in front of each tooth (6; 6a, 6b) in the rotation direction (w) on the end face (11) of the drill sleeve jacket (5) in order to protect a front face of the following tooth (6; 6a, 6b), which faces in the opposite direction to the rotation direction (w), from a collision with a reinforcing strut of the ferroconcrete or of the other reinforced material.
Bibliography:Application Number: EP20120728581