Safety systems for power equipment
First Claim
Patent Images
1. A saw comprising:
- a blade configured to move to cut a work piece, where the blade includes at least one cutting edge;
a motor adapted to move the blade;
a detection system adapted to detect contact between a person and the blade while the blade is moving; and
a brake system adapted to engage the cutting edge of the blade and to stop the blade when the detection system detects contact between the person and the blade.
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Accused Products
Abstract
A saw with a safety system is disclosed. The safety system includes a detection system adapted to detect contact between a person and a blade while the blade is moving. The safety system further includes a brake system adapted to engage the blade and to stop the blade when the detection system detects contact between the person and the blade.
157 Citations
20 Claims
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1. A saw comprising:
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a blade configured to move to cut a work piece, where the blade includes at least one cutting edge;
a motor adapted to move the blade;
a detection system adapted to detect contact between a person and the blade while the blade is moving; and
a brake system adapted to engage the cutting edge of the blade and to stop the blade when the detection system detects contact between the person and the blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A saw comprising:
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an electrically conductive cutter;
detection means for detecting contact between a person and the cutter, where the detection system is adapted to capacitively impart an electric signal on the cutter, and to detect the occurrence of a determined change in the electric signal on the cutter; and
a reaction system associated with the detection means and the cutter, where the reaction system is adapted to cause a predetermined action to take place relative to the cutter upon detection of contact between the person and the cutter by the detection means.
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20. A saw comprising:
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a blade configured to move to cut a work piece, where the blade includes at least one cutting edge;
a motor adapted to move the blade;
detection means for detecting contact between a person and the blade; and
brake means for stopping the blade when the detection means detects contact between the person and the blade.
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Specification