Device for a circular saw
AssigneeElectrolux Motor Aktiebolag
InventorsHakan Larsson, Ove Donnerdal
Life of this patent
Estimating the term…
Abstract
A fluid cooling device for a circular saw of centerless type having a ring-shaped saw blade, designed to be rotated about a fictitious center of the saw blade and with at least one disc (8, 108), mounted on the radially inner side of the ring-shaped saw blade. Mounting elements (9, 17) are provided at a rear part of the disc. At least one conduit (20) for a cooling or rinsing agent is provided with an inlet (22) for the conduit in the rear part of the disc and at least one outlet opening (25, 125) in the foremost part of the disc. The outlet opening (25, 125) is located adjacent the periphery of the disc and directed essentially parallel with or with an acute angle relative to a tangent at the interior edge (6) of the blade adjacent the outlet opening.
Claims19
A fluid cooling device having an outer peripheral edge for rotatably supporting a radially inner edge of a ring-shaped saw blade comprising:
- a disc having a circular outer peripheral edge and fluid conduit,
- means at a rear part of said disc for mounting said disc to a support, and
- a fluid inlet and at least one fluid outlet opening for said fluid conduit, said fluid inlet being located at said rear part of said disc and said fluid outlet opening being adjacent said outer peripheral edge at a foremost part of said disc and directed substantially tangentially in a direction of rotation of a ring-shaped saw blade to be mounted to said outer peripheral edge of said disc.
A fluid cooling device according to claim, 5 wherein said second line (26) is a straight line and said carrying plane is substantially in the form of a triangle.
A power saw of the type including a annular saw blade having a radially inner edge rotatably supported by an outer peripheral edge of a disc and providing a sawing depth greater than a radius of the saw blade, wherein the improvement comprises:
- a disc having a fluid conduit,
- means at a rear part of said disc for mounting said disc to a support providing means for rotating said blade,
- a fluid inlet for said fluid conduit, said fluid inlet being located at said rear part of said disc, and
- at least one fluid outlet for said fluid conduit, said fluid outlet being located adjacent said outer peripheral edge of said disc at a foremost part of said disc and directed substantially tengentially relative to said radially inner edge of said saw blade to direct a flow of fluid substantially tangentially toward said radially inner edge of said saw blade.
Dependencies are inferred from the claim text.