Cutting accessory for a drill
Assignee9492-3521 Inc.
InventorMarco Carbone
Life of this patent
Estimating the term…
Abstract
A sawing accessory for a drill, which includes a cutting member that is connected to the drill for axial rotation about an axis of rotation. The cutting member has a plate and two or more blades connected to the plate. The blades depend from the plate. The blades are curved inwardly towards the axis of rotation. A spring arrangement interconnects the blades and is connected to the cutting member. The cutting member is configured such that a rotational cutting force which is applied to a workpiece sheet creates a curved cut in the sheet.
Claims20
A sawing accessory for a drill, comprising:
- a cutting member connected to the drill for axial rotation about an axis of rotation, the cutting member having a plate and at least two blades connected to the plate and depending away therefrom, the blades being inwardly curved towards the axis of rotation;
- and
- a resilient member interconnecting the blades, the resilient member being connected to the cutting member, the cutting member being configured such that a rotational cutting force being applied to a workpiece sheet creates a curved cut into the sheet.
The sawing accessory, according to claim 11, in which the workpiece sheet is a gyprock sheet or a plywood sheet.
A saw accessory for a drill for cutting a circular hole in a workpiece sheet, the accessory comprising:
- a cutting member connected to the drill for axial rotation about an axis of rotation, the cutting member having a plate and a plurality of blades connected to the plate and depending downwardly therefrom, the blades being inwardly curved towards the axis of rotation;
- a resilient member interconnecting the blades, the resilient member being connected to the cutting member;
- and
- a cup connected to the drill, the cup being disposed around the cutting member, the cup having a cup sidewall, the cup sidewall being curved inwardly towards the axis of rotation, the cutting member being configured such that a rotational cutting force being applied to the workpiece sheet creates a curved cut into the sheet.
A saw accessory for a drill for cutting a circular hole in a workpiece sheet, the accessory comprising:
- a cutting member connected to the drill for axial rotation about an axis of rotation, the cutting member having a plate and a plurality of blades connected to the plate and depending downwardly therefrom, the blades being inwardly curved towards the axis of rotation;
- and
- a cup connected to the drill, the cup being disposed around the cutting member, the cup having a cup sidewall, the cup sidewall being curved inwardly towards the axis of rotation, the cutting member being configured such that a rotational cutting force being applied to the workpiece sheet creates a curved cut into the sheet, the cup having a seal located around the cup end to sealingly contact the workpiece sheet to stop dust and particulate material.
Dependencies are inferred from the claim text.