Table saw guard system
AssigneeRobert Bosch GmbH
InventorRonald Arvey
Life of this patent
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Abstract
A power table saw having a table top surface with an opening through which a blade can extend, the blade being mounted on an arbor and being at least vertically adjustable relative to the top surface, the table saw comprising a blade assembly having a first pivot connection and being pivotally mounted to the table saw enabling the blade to be vertically adjusted through a predetermined arc relative to the table top and a riving knife mounted on the blade assembly and being vertically moveable in a substantially straight direction as the blade is vertically adjusted through the predetermined arc.
Claims14
A power table saw having a table top surface with an opening through which a blade can extend, the blade being mounted on an arbor and being at least vertically adjustable relative to the top surface, the table saw comprising:
- a blade assembly including;
- a first pivot connection enabling the blade assembly to be pivotally mounted to the table saw and the blade to be vertically adjusted through a predetermined arc relative to the table top,
- a guard mounting bracket attached to said table saw and having a curved slot with a curvature corresponding to said predetermined arc,
- a sliding pivot bracket mounted on said guard mounting bracket and having a straight slot extending generally parallel to the table top surface,
- a second pivot connection configured to slide in said curved slot and said straight slot, simultaneously, to move said sliding pivot bracket in a straight perpendicular direction relative to the table top surface;
- and
- a riving knife mounted on said sliding pivot bracket and being vertically moveable in a substantially straight direction as the blade is vertically adjusted through said predetermined arc.
A power table saw having a table top surface with an opening through which a blade can extend, the blade being mounted on an arbor and being at least vertically adjustable relative to the top surface, the table saw comprising:
- a blade assembly enabling the blade arbor to be vertically adjusted through a predetermined arc relative to the table top, a guard mounting bracket attached to said table saw and providing a support for a sliding pivot bracket;
- a sliding pivot bracket mounted on said guard mounting bracket and being movable in a straight vertical direction;
- and
- a riving knife mounted on said sliding pivot bracket;
- wherein said blade assembly comprises a parallelogram linkage for moving said sliding pivot bracket in a straight line vertical direction responsive to movement of said blade arbor through said predetermined arc.
Dependencies are inferred from the claim text.