Vertical band saw
AssigneeKEURO Besitz GmbH & Co. EDV-Dienstleistungs KG
InventorsDieter Spath, Armin Stolzer
Life of this patent
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Abstract
To permit miter cuts clear through a workpiece, or for selected depths, a saw band carrier (6) supports a pair of saw band wheels (7, 8) above and below a workpiece support (2), and the saw band wheel carrier (6) is pivotable about a substantially vertical axis of rotation (29). The axis of rotation (29) is preferably located at the initial cutting engagement point of an endless saw band (9) looped about the saw band wheels (7, 8), and the pivoting position can be arrested at any desired pivoted or angular position. In addition, the saw band carrier can be arranged to tilt about an essentially horizontal tilt axis.
Claims36
A vertical band saw having
- a frame (1);
- a workpiece support (2) defining a support plane for supporting a workpiece (3);
- an endless saw band (9), said saw band intersecting the support plane and defining a cutting plane (11);
- a pair of saw band wheels (7, 8) respectively located above and below said workpiece support plane (2) and operable about respective axes of rotation, which axes of rotation are located in a respective horizontal plane and intersect said cutting plane (11) at an angle of up to 90.degree.;
- a saw band wheel carrier (6) supporting said saw band wheels in position;
- guide means (12,13), coupled to said saw band wheel carrier (6), guiding the saw band (9) into a desired cutting plane, and
- feed means for advancing the wheel carrier (6) in a direction towards the workpiece (3), and thus in a cutting direction (24);
- whereby, when one of the saw band (9) and the workpiece (3) moves horizontally with respect to the other, the saw band engages the workpiece at an initial cutting position and then cuts into the workpiece,
- wherein,
- in order to permit miter cuts into the workpiece starting from said initial cutting position, said saw band carrier (6) is pivotable about a substantially vertical axis of rotation (29) which is fixed relative to the frame and which, at the instant cutting begins, coincides with said initial cutting position;
- and
- means (28) are provided to lock the saw band carrier (6) in selected pivoted positions.
A vertical band saw having
- a frame (1);
- a workpiece support (2) defining a support plane for supporting a workpiece (3);
- an endless saw band (9), said saw band intersecting the support plane and defining a cutting plane (11);
- a pair of saw band wheels (7, 8) respectively located above and below said workpiece support plane (2) and operable about respective axes of rotation, which axes of rotation are located in a respective horizontal plane and intersect said cutting plane (11) at an angle of up to 90.degree.;
- a saw band wheel carrier (6) supporting said saw band wheels in position;
- guide means (12, 13), coupled to said saw band wheel carrier (6), guiding the saw band (9) into a desired cutting plane, and
- feed means for advancing the wheel carrier (6) in a direction towards the workpiece (3), and thus in a cutting direction (24);
- whereby, when one of the saw band (9) and the workpiece (3) moves horizontally with respect to the other, the saw band engages the workpiece at an initial cutting position and then cuts through the workpiece to a predetermined exit cutting position,
- wherein,
- in order to permit miter cuts into the workpiece starting from said initial cutting position, said saw band carrier (6) is pivotable about a substantially vertical axis of rotation (29) which is fixed relative to the frame and which, at the instant cutting begins, coincides with said predetermined exit cutting position;
- and
- means (28) are provided to lock the saw band carrier (6) in selected pivoted positions.
Dependencies are inferred from the claim text.