Blade guard with dust collection
AssigneeSd3, LLC
InventorsHollan A. Tsuda, John P. Nenadic, Paul H. Stasiewicz
Life of this patent
Estimating the term…
Abstract
Blade guards for power tools such as table saws are disclosed. The blade guard may include a shroud that pivots up and down to allow a workpiece to move past the guard, a dust collection channel, and a pivot joint which maintains the dust collection channel in an operable condition as the shroud pivots up or down. The guard may also include a wood stop and anti-kickback pawls. The blade guard may be part of a dust collection system and may be connected to a vacuum system by a conduit such as a flexible hose.
Claims19
A blade guard for use on a table saw, where the table saw includes a table with a work surface, a circular blade having an adjustable elevation relative to the table and an adjustable angle relative to the table, an elevation carriage supporting the blade and configured to move up and down to change the elevation of the blade relative to the table and to tilt to change the angle of the blade relative to the table, and a mount on the elevation carriage, where the mount is below the work surface, the blade guard comprising:
- a shroud configured to at least partially shield the blade, where the shroud has a first channel through which dust may travel and where the first channel includes a rear region;
- a splitter having a forward-most tip, a top region and a bottom region, where the bottom region is configured to be held by the mount below the work surface so that the splitter moves up and down and tilts with the elevation carriage when the splitter is installed in the table saw;
- and
- a dust port directly mounted to and supported by the splitter along the top region of the splitter at a first mounting location so that the dust port does not move relative to the splitter but moves up and down and tilts with the splitter when the splitter moves up and down and tilts with the elevation carriage, where the dust port includes an inlet, an outlet, and a second channel extending from the inlet to the outlet through which dust may travel;
- and
- where the rear region of the shroud connects with the inlet on the dust port to form a joint connecting the shroud to the dust port, where the joint is configured so that the shroud can move relative to the dust port and splitter around an axis, where the joint is further configured so that the first channel in the shroud operably connects with the second channel in the dust port, where the joint is adjacent the top region of the splitter, and where the joint is positioned so that the axis is above the first mounting location and rearward of the forward-most tip of the splitter.
Dependencies are inferred from the claim text.