Miter saw with improved safety system
First Claim
Patent Images
1. A miter saw comprising:
- a base assembly defining a cutting zone;
a rotatable blade configured to cut workpieces within the cutting zone;
a pivot arm assembly pivotally coupled to the base assembly and configured to support the blade above the base assembly, where the pivot arm assembly is adapted to pivot down toward the base assembly to move the blade toward the base assembly to cut a workpiece;
means for stopping the rotation of the blade;
where the blade has angular momentum when rotating, and where the means for stopping the rotation of the blade includes means for transferring at least a portion of the angular momentum of the blade to the base assembly; and
means for urging the pivot arm assembly in a direction away from the cutting zone.
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Accused Products
Abstract
Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating, to create an impulse against movement of the blade into the cutting zone, or to cause the blade to move away from the cutting zone.
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Citations
5 Claims
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1. A miter saw comprising:
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a base assembly defining a cutting zone; a rotatable blade configured to cut workpieces within the cutting zone; a pivot arm assembly pivotally coupled to the base assembly and configured to support the blade above the base assembly, where the pivot arm assembly is adapted to pivot down toward the base assembly to move the blade toward the base assembly to cut a workpiece; means for stopping the rotation of the blade; where the blade has angular momentum when rotating, and where the means for stopping the rotation of the blade includes means for transferring at least a portion of the angular momentum of the blade to the base assembly; and
means for urging the pivot arm assembly in a direction away from the cutting zone. - View Dependent Claims (2, 3, 4, 5)
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Specification