Scroll saw blade position adjustment and work table dampener
OwnerRichard B. Brundageinventor
Life of this patent
Estimating the term…
Abstract
A blade positioner for a scroll saw is disclosed which permits adjustment of the saw blade relative to the pivoting beams or arms of the scroll saw so that the plane movement of the blade is coincident with the blade direction, particularly in the event that the ends of the arms are somewhat misaligned with respect to the plane of travel of the arms due to inaccuracies of the arm pivot bearing locations. Also disclosed is an anti-rattle spring interposed between the work table and work table support so as to minimize rattle of the work table relative to the support in all directions.
Claims4
In a scroll saw comprising a frame, a pair of spaced generally parallel arms pivotally mounted on said frame, a blade interposed between said arms at one end thereof, means for tensioning said blade, means for pivotally driving said arms with respect to said frame thereby to reciprocably drive said blade, wherein said improvement comprises bIade holder means for adjusting the position of the blade relative to said arms in a direction generally transverse to the plane of movement of the ends of the arms so that the plane of the blade is substantially coincident with the plane of movement of the ends of the arms, said blade holder means including a one piece clip adapted to be adjustably secured to the end of at least one of said arms, said clip having means for mounting said blade thereon, said clip further having an elongated slot therein for receiving a fastener, said slot being larger than said fastener so as to permit adjustment of said clip on said arm with respect to said fastener thereby to permit a blade received in said blade mounting means of said clip to be positioned so as to be substantially coincident with the plane of movement of the ends of said arms.
In a scroll saw comprising a frame, a pair of spaced, generally parallel arms pivotally mounted on said frame, a blade interposed between said arms and at one end thereof, and a table adjacent said blade for holding a work piece to be cut, said table being pivotally mounted on said frame for pivotal movement about a generally horizontal, longitudinal axis such that the table is inclined with respect to the blade so as to permit beveled cuts to be made in the work piece relative to the blade, wherein the improvement comprises:
- means for substantially eliminating rattling of the table with respect to the frame during reciprocal operation of said saw, said anti-rattle means comprising a pivot pin for pivotally mounting said table with respect to said frame, a leaf spring positioned proximate said pivot pin and interposed between a portion of said frame and a portion of said table for resiliently biasing said table and frame portions away from one another along three axes of direction relative to said frame portion when the table is at any desired adjusted position, and said leaf spring having a central portion with an opening therein for receiving said pivot pin and opposed wing portions bowed outwardly from the central portion with the central portion being resiliently engageable with one surface of said frame and with said wing portions being resiliently engageable with a cooperating surface of said table, thereby to resiliently hold the table relative to the support regardless of the pivotal position of the table with regard to the frame.
Dependencies are inferred from the claim text.