Screw

The invention relates to a screw (1), especially a wood screw, with a countersunk head (4) having the shape of two truncated cones. The invention proposes that edges (9) of milling pockets (7) that are at the front in a direction of rotation during screwing-in be formed with a curve in the direction...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KLAUSER, PHILIPP, KRUMBECK, MARKUS, SCHNEIDER, MATTIAS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a screw (1), especially a wood screw, with a countersunk head (4) having the shape of two truncated cones. The invention proposes that edges (9) of milling pockets (7) that are at the front in a direction of rotation during screwing-in be formed with a curve in the direction of rotation during screwing-in, so that the milling pockets (7) are lengthened in the circumferential direction, with the result that engagement of cutters (8) in, for example, wood is improved.