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US 6,439,094 B1Granted
Saw blade
AssigneeAmada Company, Limited
InventorsAkiyoshi Yoneda, Susumu Tsujimoto
Life of this patent
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Abstract
A saw blade is constituted with a unset tooth, a plurality of left-set teeth and a plurality of right-set teeth. In the construction, the saw blade has the unset tooth, a plurality of left-set teeth and a plurality of right-set teeth as one group. A plurality of set widths of the plurality of set teeth are formed in the saw blade. A relief angle of a tip of the unset tooth is equal to or greater than a relief angle of a tip of the set tooth having the smallest set width. Furthermore, the relief angle of a tip becomes small in accordance that the set width becomes greater.
Claims1
A band saw blade, comprising:
- at least one unset tooth;
- at least a first left set tooth which has a smallest set width;
- at least a second right set tooth which has a smallest set width;
- at least a third left set tooth which has a larger set width than the set width of the first left set tooth;
- and
- at least a fourth right set tooth which has a larger set width than the set width of the second right set tooth,
- wherein when a relief angle of a tip of the unset tooth is set to be αA, when a relief angle of a tip of each first left set tooth and second right set tooth is set to be αB, and when a relief angle of a tip of each third left set tooth and fourth right set tooth is set to be αC, a relation αA>αB>αC is achieved, and
- wherein αA is 33-37 degrees, αB is 30-35 degrees, and αC is 23-32 degrees.
5 more elements
Dependencies are inferred from the claim text.