Dust-free hole cutting method and apparatus

B - Operations – Transporting – 26 – D

Patent

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Details

B26D 7/18 (2006.01) B23Q 11/00 (2006.01) B23Q 35/10 (2006.01) B25F 5/00 (2006.01) B25H 7/00 (2006.01) B26B 29/00 (2006.01)

Patent

CA 2217607

A vacuum template (10) has a suction chamber (22) on its back surface that adheres the template (10) to the wall (88) or other flat surface when a source of vacuum pressure (12) attached to the template (10) is turned on and the template (10) has been placed by the worker in its desired position. Dust inlets (62) adjacent a guidance hole (50) in the template (10) immediately suction away dust particles as the hole is being cut by a power tool (14) or hand saw manipulated by the user. Interchangeable modules (152) on the template (10) provide for variations in hole size and shape.

Cette invention concerne un gabarit à vide (10) qui possède une chambre d'aspiration (22) sur sa face arrière, ladite chambre servant à plaquer le gabarit (10) à la paroi (88) ou à toute autre surface plate lorsqu'on met en marche une source, fixée au gabarit (10), qui permet de créer une dépression (12), et après que le gabarit (10) ait été placé par l'ouvrier dans la position souhaitée. Des orifices d'entrée de poussière (62) adjacents à un alésage-guide (50) situé à l'intérieur du calibre (10) provoquent l'élimination immédiate par aspiration des particules de poussière pendant que le trou est percé par un outil électrique (14) ou par une égoïne manipulé(e) par l'utilisateur. Des modules interchangeables (152) se montant sur le gabarit (10) permettent de percer des trous de tailles et de formes variées.

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