US 4,584,772 AGranted

Hand-held planing tool with a rotary cutter

AssigneeBlack & Decker Overseas AG

InventorOtto Bergler

Life of this patent

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Abstract

A hand-held planing tool has a housing with a chamber adapted to receive a rotary driven planer head. The chamber is sized to receive either a small planer head and blade which makes a shallow flat planar cut in a workpiece, or a larger planer head and blade which makes a profiling cut (e.g., an irregular cut) in a workpiece. The housing carries support members which extend downwardly to different depths to contact the portions of the profiling cut which are of corresponding depths, and thereby adapt the tool to travel along the profile.

Claims17

Dependent claims

A hand-held planing tool comprising:

a housing forming a generally cylindrical planer chamber therein;
a vertically adjustable feed plate mounted on said housing at a forward side of said chamber and including a rear edge;
vertical adjusting means for vertically adjusting said feed plate relative to said housing;
a support member including a discharge plate mounted on said housing at a rear side of said chamber and including a front edge,
said front and rear edges defining a downward opening of said chamber;
a planer head mounted on said housing for rotation within said chamber about an axis extending transversely of a fore-aft axis of said housing, said axis of rotation being fixed in location relative to a lower guide surface defined by said discharge plate;
an electric motor mounted on said housing and being operably connected to said planer head for rotating the latter;
said chamber being sized to selectively receive one of:
a planer head having first cutting edge means for cutting a workpiece along a transverse line which is substantially parallel to said guide surface, and
a planer head having second cutting edge means for cutting profiles along a transverse line which is non-parallel to said guide surface, said second cutting edge means having a maximum outer diameter which is greater than a diameter of said first cutting edge means;
said guide surface being disposed substantially tangentially relative to a diameter of said first cutting edge means;
means for adjusting said feed plate in said fore-aft direction relative to said housing independently of said vertical adjusting means to adjust said rear edge relative to the cutting edge means of the planer head, and
means for adjusting said discharge plate in said fore-aft direction relative to said housing to adjust said front edge relative to the cutting edge of the planer head,
said rear edge of said feed plate having a contour corresponding to the contour of the cutting edge means of the planer head, said feed plate including a main part securable to said housing and an exchangeable part carrying said rear end of said main part, said exchangeable part carrying said rear edge and being exchangeable so that said rear edge can be adapted to the contours of the first and second cutting edge means.

11 more elements

Dependencies are inferred from the claim text.

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Abstract

A hand-held planing tool comprising:

a housing forming a generally cylindrical planer chamber therein;
a vertically adjustable feed plate mounted on said housing at a forward side of said chamber and including a rear edge;
vertical adjusting means for vertically adjusting said feed plate relative to said housing;
a support member including a discharge plate mounted on said housing at a rear side of said chamber and including a front edge,
said front and rear edges defining a downward opening of said chamber;
a planer head mounted on said housing for rotation within said chamber about an axis extending transversely of a fore-aft axis of said housing, said axis of rotation being fixed in location relative to a lower guide surface defined by said discharge plate;
an electric motor mounted on said housing and being operably connected to said planer head for rotating the latter;
said chamber being sized to selectively receive one of:
a planer head having first cutting edge means for cutting a workpiece along a transverse line which is substantially parallel to said guide surface, and
a planer head having second cutting edge means for cutting profiles along a transverse line which is non-parallel to said guide surface, said second cutting edge means having a maximum outer diameter which is greater than a diameter of said first cutting edge means;
said guide surface being disposed substantially tangentially relative to a diameter of said first cutting edge means;
means for adjusting said feed plate in said fore-aft direction relative to said housing independently of said vertical adjusting means to adjust said rear edge relative to the cutting edge means of the planer head, and
means for adjusting said discharge plate in said fore-aft direction relative to said housing to adjust said front edge relative to the cutting edge of the planer head,
said rear edge of said feed plate having a contour corresponding to the contour of the cutting edge means of the planer head, said feed plate including a main part securable to said housing and an exchangeable part carrying said rear end of said main part, said exchangeable part carrying said rear edge and being exchangeable so that said rear edge can be adapted to the contours of the first and second cutting edge means.

11 more elements