Irregular-shank tools and drivers therefor

B - Operations – Transporting – 23 – B

Patent

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Details

B23B 31/00 (2006.01) B23B 31/107 (2006.01)

Patent

CA 2437568

A tool (1) has a distal operative portion and a proximal shank (2) with a mounting portion (3), for mounting the tool in a holder (10). A substancial portion of the mounting portion has a cross-sectional shape with at least one and fewer than six 60-degree segments thereof having segment ends joined by a flat surface (5). The holder has a distal axial aperture or mounting hole (12) for receiving the tool (1), the aperture having a cross-sectional shape which has 60-degree segments thereof having segment ends joined by a flat surface (13), but no more such flat surface segments than those corresponding to flat surface segments of the tool. The holder further has a ball-detent (21) mechanism or other locking mechanism for engaging the mounting portion (3) of the tool (1).

L'invention concerne un outil (1) comprenant une partie fonctionnelle distale et une partie tige (2) proximale dotée d'une partie de montage (3) destinée à monter ledit outil dans un porte-outil (10). Une partie substantielle de la partie de montage présente une coupe transversale dotée de un à cinq pan(s) coupé(s) à 60 degrés dont les extrémités sont reliées au moyen d'une surface plane (5). Le porte-outil comprend une ouverture axiale distale et un alésage de montage (12) destiné à recevoir ledit outil (1), ladite ouverture montage présentant une coupe transversale dotée de pan(s) coupé(s) à 60 degrés dont les extrémités sont reliées au moyen d'une surface plane (13), le nombre de ces pans coupés étant égal au nombre de pans coupés correspondants de la surface plane. Le porte-outil comprend également un mécanisme de détente à billes (21) ou un autre mécanisme de verrouillage coopérant avec la partie de montage (3) de l'outil (1).

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