Rotary bristle tool with preferentially oriented bristles

Details Rotary bristle tool with preferentially oriented bristles Rotary bristle tool with preferentially oriented bristles

B - Operations, Transporting

24

D

B24D 13/14 (2006.01) B24D 13/10 (2006.01)

Patent

CA 2295818

A rotary bristle tool having a backing with a plurality of bristles extending therefrom. The bristles have a cross section and preferential orientation to control deflection during rotation of the tool. One embodiment is well suited for refining the inside surface of two-way and three-way corners. The backing and bristles are preferably integrally molded. The rotary bristle tool is molded from a moldable polymer such as a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The rotary bristle tool can include an attachment member molded integrally with the backing. Also disclosed is a method of making a rotary bristle tool and a method of refining a workpiece surface with a rotary bristle tool.

Cet outil rotatif à crins de brosserie est pourvu d'un support d'où partent plusieurs crins. Ceux-ci, qui sont d'une section donnée, sont disposés selon une orientation préférentielle, ce qui permet de commander leur flexion durant la rotation de l'outil. L'une des réalisations de l'invention convient très bien au polissage de la face interne de coins à deux et trois faces. Le support et les crins sont, de préférence, moulés d'une seule pièce. Cet outil à crins rotatif est moulé au moyen d'un polymère moulable, par exemple d'un polymère thermodurcissable, d'un polymère ou d'un élastomère thermoplastiques. Il peut comporter un élément de connexion moulé d'une seule pièce avec le support. L'invention a également trait à un procédé de fabrication de cet outil et à une technique de polissage de la surface d'une pièce à usiner à l'aide d'un tel outil.

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