A power miter saw having digital displays

B - Operations – Transporting – 23 – D

Patent

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Details

B23D 59/00 (2006.01) B23D 45/04 (2006.01)

Patent

CA 2604478

Embodiments of the present invention are directed to a power compound miter saw (10) having miter angle as well as bevel angle adjustment capabilities, with sensing units (42, 44) that can measure the angular position of the mite table (14) relative to the base (12) as well as the bevel angle of the blade (32) relative to the table (14). Such sensing units (42, 44) generate position signals that can be used to provide a digital display (68, 82) of the miter and bevel angles to a high degree of accuracy. Moreover, the embodiments utilize mechanisms (50, 76) which enable a user to tighten the pivot connections of the table (14) and the base (12) as well as the pivot connection between the table and the bevel pivot support housing (24) without damaging the sensing units (42, 44). The sensing units are configured and mounted in such a way as to not interfere with access to the nut (50, 76) which can be rotated to vary the amount of friction between the adjacent components.

Les modes de réalisation de la présente invention concernent une scie à onglet électrique (10) pourvue de fonctions de réglage de l'angle d'onglet et de l'angle de biseau, au moyen de capteurs (42, 44) pouvant mesurer la position angulaire de la table à onglet (14) par rapport à la base (12) et de l'angle de biseau de la lame (32) par rapport à la table (14). Lesdits capteurs (42, 44) génèrent des signaux de position pouvant être utilisés pour fournir un affichage numérique (68, 82) des angles d'onglet et de biseau à un haut niveau de précision. De plus, les modes de réalisation utilisent des mécanismes (50, 76) qui permettent à l'utilisateur de serrer les connexions pivotantes de la table (14) et de la base (12) et la connexion pivotante entre la table et le logement du support pivotant du biseau (24) sans endommager les capteurs (42, 44). Les capteurs sont montés de sorte à ne pas interférer avec l'accès à l'écrou (50, 76) qui peut pivoter pour modifier la quantité de friction entre les composants adjacents.

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