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US 8,464,622 B2Granted
Circular saw blade with changeable blade strips
AssigneeNewstar (Asia) Ltd
InventorJohn Chung-Kuang Chen
Life of this patent
Estimating the term…
Abstract
A circular saw blade has a frame, which includes a plurality of recesses and a groove. The circular saw blade also has at least two arc-shaped blade strips, each having a plurality of sawteeth formed on the outer rim and at least one bump and a protruding piece on the inner rim, such that each bump is configured for mating with its corresponding recess on the frame and the protruding piece is formed extending along the circumference of the inner rim for insetting into the groove of the frame.
Claims5
A circular saw blade with changeable blade strips, adapted for an electric saw device, comprising:
- a circular frame with a circumference edge, for mounting on the electric saw device to be driven to rotate, the frame, further comprising:
- a plurality of recesses, distributed along the circumference edge;
- a groove, formed on and extended along the circumferential edge;
- and
- a plurality of screw holes;
- at least two arc-shaped blade strips, each having an outer rim and an inner rim, wherein a plurality of sawteeth is formed on the outer rim of each of said at least two arc-shaped blade strips, at least one bump and a protruding piece with a plurality of holes are formed on the inner rim of each of said at least two arc-shaped blade strips, and each bump is mating to one of the said plurality of recesses on the frame, and the protruding piece is insetting into the groove of the frame, and
- a plurality of bolts;
- wherein the at least two arc-shape blade strips are fixed to the frame by screwing the plurality of bolts through the holes and then into the screw holes on the frame.
5 more elements
Dependencies are inferred from the claim text.