Scroll saw with movable arm
OwnerRonald Dennis Autreyinventor
Life of this patent
Estimating the term…
Abstract
Method and apparatus for a scroll saw having a base along with an upright hollow frame with a work table attached to the lower frame used to support a workpiece to be cut. The scroll saw includes upper and lower pivotable arms driven by a motor with a saw blade between the pivotable arms. A rotatable member is included in the upright frame member for rotating an upper frame assembly in a horizontal plane. The front portion of the work table can be removed from the scroll saw to access the saw blade and the work table can be automatically leveled. Also the saw blade travels in a true vertical motion and it remains centered during operation to prevent it from creeping forward during operation.
Claims18
A scroll saw, comprising:
- a) a base having an upright frame mounted on said base and extending upwardly for supporting a work table, upper and lower pivotable arms mounted on said upright frame, and a motor for driving said upper and lower pivotable arms;
- b) a saw blade having upper and lower ends being reciprocatedly attached to said upper and lower pivotable arms, wherein said saw blade reciprocates vertically in response to up and down movement of said upper and lower pivotable arms;
- said saw having upper and lower linear extending bearings surrounding said upper and lower blade carriers to insure said saw blade travels in a vertical motion to reduce workpiece chatter;
- c) a horizontal work table mounted on said upright frame and supported by said base upon which a workpiece can be placed;
- d) an upper frame arm having said upper pivotable arm extending therefrom across said work table;
- e) an upper blade carrier mounted on a free end of said upper frame arm for supporting an upper end of said saw blade, and a lower blade clamp attached to a free end of said lower pivotable arm for clamping a lower end of said saw blade;
- f) an adjustable work hold-down device mounted on said upper frame arm adjacent said upper blade carrier;
- and
- g) a rotatable member disposed in said upright frame to permit said upper frame assembly and said upper pivotable arm to rotate in a horizontal plane to allow the upper pivotable arm and said upper frame assembly to rotate to a side and clear said work table to allow a user to lace a workpiece onto said saw blade.
A method for assembling and operating a scroll saw, comprising the steps of:
- a) providing a base having an upright frame mounted on the base and extending upwardly for supporting a work table, mounting upper and lower pivotable arms on the upright frame, and a motor for driving both said upper and lower pivotable arms;
- b) attaching a saw blade having upper and lower ends to the upper and lower pivotable arms, wherein the saw blade reciprocates vertically in response to up and down movement of the upper and lower pivotable arms;
- said saw having upper and lower linear extending bearings surrounding said upper and lower blade carriers to insure said saw blade travels in a vertical motion to reduce workpiece chatter;
- c) mounting the work table horizontally on the upright frame and supporting it on the base upon which a workpiece can be placed;
- d) providing an upper frame arm with the upper pivotable arm extending from the upright frame arm across the work table;
- e) mounting an upper blade carrier on a free end of said upper frame arm for supporting an upper end of said saw blade, and attaching a lower blade clamp to a free end of said lower pivotable arm for clamping a lower end of said saw blade;
- f) mounting an adjustable work hold-down device on said upper frame arm adjacent said upper blade carrier;
- and
- g) using a rotatable member in the upright frame to rotate the upper frame assembly and said upper pivotable arm in a horizontal plane to allow the upper pivotable arm to rotate to a side and clear said work table to allow a user to place a workpiece onto said saw blade.
Dependencies are inferred from the claim text.