Bristle end shaping method for interdental twisted wire brush

• Main Authors: MAEKAWA KIYOSHI, KOEPSEL SCOTT, SQUILLACI DOMINIC, SHIMKUS JOHN
• Format: Patent
• Language: English; French
• Published: 09.10.1998
• Edition: 6
• Subjects: BRUSHES; BRUSHWARE; HUMAN NECESSITIES; MANUFACTURE OF BRUSHES

The method involves rotating the brush (26) transversely to its axis in the range of 50 to 400 rpm, rotating it along its axis and grinding and flexing the bristle ends (24,25) against a flat, moving abrasive belt (20). The ratio of longitudinal rotation to transverse rotation is about 6:1. The abrasive material on the belt is silicon carbide, sapphire or diamond. The belt operates at a speed in the range of about 70 to about 1300 ft/min and is rotated transversely to the axis of the brush along a line passing perpendicularly through the portion (39) of the belt which engages the brush. La méthode est destinée à produire un structure rugueuse, conique et arrondie des bouts de poils d'une brosse interstitielle à fil torsadé.On fait tourner simultanément transversalement et longitudinalement la brosse interstitielle (26) , tout en pressant les bouts de poils de la brosse interstitielle (26) contre une surface mobile abrasive. Les poils sont ployés par rapport à leur structure droite normale suivant un angle inférieur à environ 85degre, en pressant les bouts de poils contre la surface abrasive. La surface abrasive peut être une bande (20) ou un disque.