Bohrer

Details

Veröffentlichungs-Nr.

EP4741087

Anmeldetag

14. Juni 2024

Veröffentlichung

9. Januar 2025

Rechtsraum

EP

IPC

B23B51/00

Abstract

When viewed along a central axis, a start point phase of a first discharge flute falls within a range of not less than +10° and not more than +90° with respect to a central edge, an end point phase of the first discharge flute falls within a range of not less than -40° and not more than 0° with respect to the central edge, a start point phase of a second discharge flute falls within a range of not less than +10° and not more than +90° with respect to an outer peripheral edge, and an end point phase of the second discharge flute falls within a range of not less than -40° and not more than 0° with respect to the outer peripheral edge. The first discharge flute includes a first front flute portion, and a first rear flute portion contiguous to the first front flute portion. The second discharge flute includes a second front flute portion, and a second rear flute portion contiguous to the second front flute portion. A helix angle of the first front flute portion monotonously decreases toward the first rear flute portion. A helix angle of the second front flute portion monotonously decreases toward the second rear flute portion. A helix angle of each of the first rear flute portion and the second rear flute portion is 0°.

Anmelder

Firma

Sumitomo Electric Hardmetal Corp.

Land

🇯🇵 Japan

Fachgebiete