| US 7,591,615 B2 | ||
| Sheet material cutting machine with vacuum cleaning system | ||
| Steven Li, Markham (Canada); and Yoshimasa Okada, Reynoldsburg, Ohio (US) | ||
| Assigned to Trimont Mfg. Inc, Ontario (Canada); and TS Tech Holding Company, Inc., Wilmington, Del. (US) | ||
| Filed on Mar. 09, 2007, as Appl. No. 11/684,213. | ||
| Prior Publication US 2008/0216625 A1, Sep. 11, 2008 | ||
| Int. Cl. B23B 47/34 (2006.01) | ||
| U.S. Cl. 408—67 [408/58; 408/95; 408/207; 83/100] | 17 Claims |
| 1. A sheet material cutting machine comprising, in combination:
a bristle bed with generally vertically extending bristles having free ends defining a support surface for supporting sheet
material to be cut;
a carriage movable over the bristle bed and carrying at least one cutting tool assembly to selectively cut the sheet material;
wherein said cutting tool assembly includes a rotating hollow drill having a first end forming a cutting edge, a second end
opposed to the first end and an internal passage axially extending from the first end to the second end;
wherein said cutting tool assembly includes a bracket receiving the second end of the rotating hollow drill and mounted stationary
relative to the rotating hollow drill;
a vacuum cleaning system providing vacuum at the carriage to remove cutting debris as the cutting tool assembly is cutting
the sheet material;
wherein said vacuum cleaning system includes a hose assembly connecting the bracket to a vacuum source to provide vacuum to
the internal passage at the second end of the rotating hollow drill to remove cutting debris through the internal passage
and the hose assembly as the hollow drill is cutting the sheet material; and
a controller in communication with the vacuum cleaning system so that the controller deactivates the vacuum within the internal
passage when the hollow drill is not cutting the sheet material.
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