Safety systems for band saws
First Claim
Patent Images
1. A band saw comprising:
- a frame;
at least two, spaced apart, rotatable wheels supported by the frame;
a blade looped around the wheels, where rotation of at least one wheel causes the blade to move around the wheels;
a detection system adapted to detect a dangerous condition between a person and the blade; and
a reaction system configured to sever the blade upon detection of the dangerous condition;
where the reaction system includes a first pawl adapted to pivot into contact with the blade, a cutting edge on the first pawl, and a second pawl against which the cutting edge presses to sever the blade.
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Accused Products
Abstract
Band saws with high-speed safety systems are disclosed. The band saws include a detection system adapted to detect a dangerous condition between a blade and a person. A reaction system performs a specified action such as stopping the blade upon detection of the dangerous condition.
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Citations
15 Claims
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1. A band saw comprising:
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a frame; at least two, spaced apart, rotatable wheels supported by the frame; a blade looped around the wheels, where rotation of at least one wheel causes the blade to move around the wheels; a detection system adapted to detect a dangerous condition between a person and the blade; and a reaction system configured to sever the blade upon detection of the dangerous condition;
where the reaction system includes a first pawl adapted to pivot into contact with the blade, a cutting edge on the first pawl, and a second pawl against which the cutting edge presses to sever the blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification