Drill press with switched reluctance motor
AssigneeBlack & Decker Inc.
InventorsLudwin Mora, Michael L. O'Banion, Richard K. Pallo, Robert P. Welsh
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a drill press including a vertical support post, a pivot assembly supported upon the support post, the pivot assembly being pivotable about a vertical axis defined by the post, a table supported on the pivot assembly, a head supported by the post at a location above the table, a rotatable chuck supported by the head, an induction motor driving the chuck; and a detent mechanism disposed between the pivot assembly and the post for identifying when the table is in a central location under the chuck.
Claims23
A drill press comprising:
- a vertical support post;
- a pivot assembly supported upon said support post;
- a table supported on said pivot assembly;
- a head supported by said post;
- a rotatable chuck supported by said head;
- and
- a switched reluctance motor driving the chuck;
- wherein the pivot assembly is pivotable about a substantially horizontal first axis, with the table pivoting about the first axis jointly with the pivot assembly, the table is pivotable relative to the pivot assembly about a substantially horizontal second axis, and the table is movable relative to the pivot assembly towards or away from the post,
- the pivot assembly comprising a table support having a center arm and side arms extending from the center arm, the center arm secured to the post so as to be pivotable about the first horizontal axis with the first horizontal axis intersecting the post, and a trunnion secured to each side arm, the trunnions being pivotable relative to the side arms about the second horizontal axis, and the trunnions being secured to the table.
A drill press comprising:
- a vertical support post;
- a pivot assembly supported upon said support post;
- a table supported on said pivot assembly;
- a head supported by said post;
- a rotatable chuck supported by said head;
- a switched reluctance motor driving the chuck;
- a clamp plate adjustably secured to said table, the table and the clamp plate joining defining a first channel;
- and
- a telescoping extension arm comprising an extension rail fixably securable at selected locations relative to said table by said clamp plate;
- said rail is slidably disposable within said first channel and may be clamped between said clamp plate and said table to fixably secure said arm.
A drill press comprising:
- a vertical support post;
- a pivot assembly supported upon said support post;
- a table supported on said pivot assembly;
- a head supported by said post;
- a rotatable chuck supported by said head;
- a switched reluctance motor driving the chuck;
- wherein said table has an upper surface and a slot extending along said upper surface, and the drill press further comprising a guide fence slidably disposable along said upper surface of said table and securable at selectable locations, wherein the guide fence comprises a guide rail, said guide rail slidably fitting within said slot,
- said guide rail including an opening, said guide fence including a bolt having a screw-threaded opening, said bolt disposed below said guide rail within said slot and with said bolt opening coincident with said rail opening, said guide fence further including a screw-threaded shaft extending through said rail opening and into said bolt opening, said slot having overhanging lips, wherein, when said shaft is rotated in a first direction, said bolt is raised towards said lips to secure said guide fence at a selected location and when said shaft is rotated in a second direction, said bolt is lowered away from said lips to allow said guide fence to be slided along said slot.
Dependencies are inferred from the claim text.