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 c
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.
대표청구항▼
The invention claimed is: 1. A saw comprising: a base assembly; a housing pivotally coupled to the base assembly; a substantially planar, circular blade supported at least partially within the housing, where the blade has a cutting edge around its periphery; a motor configured to rotate the blade;
The invention claimed is: 1. A saw comprising: a base assembly; a housing pivotally coupled to the base assembly; a substantially planar, circular blade supported at least partially within the housing, where the blade has a cutting edge around its periphery; a motor configured to rotate the blade; and a safety system including at least one brake member adapted to engage and stop the rotation of the blade; where the brake member is coupled to the housing by support structure that includes at least one pivot pin disposed at least partially within the housing and radially beyond the cutting edge of the blade, where the pivot pin extends substantially perpendicular to the plane of the blade, where the brake member includes an aperture, and where the pivot pin passes through the aperture to mount the brake member on the pivot pin. 2. The saw of claim 1, where the housing includes an outer wall, and where the at least one pivot pin extends at least partially through the outer wall of the housing. 3. The saw of claim 1, where the housing includes an outer wall, and where the outer wall supports the at least one pivot pin. 4. The saw of claim 1, where the pivot pin includes two ends and where the pivot pin is supported at each of its two ends. 5. The saw of claim 1, where the pivot pin is positioned in a slot in the housing. 6. The saw of claim 1, where the pivot pin is moveable relative to the housing. 7. The saw of claim 1, where the pivot pin is moveable relative to the blade. 8. A saw comprising: a base assembly; a housing pivotally coupled to the base assemby; a substantially planar, circular blade supported at least partially within the housing, where the blade has a cutting edge around its periphery; a motor configured to rotate the blade; and a safety system including at least one brake member adapted to engage and stop the rotation of the blade; where the brake member is coupled to the housing by support structure that includes at least one pivot pin disposed at least partially within the housing and radially beyond the cutting edge of the blade, where the pivot pin extends substantially perpendicular to the plane of the blade, where the brake member includes an aperture, and where the pivot pin passes through the aperture to mount the brake member on the pivot pin; and where the pivot pin is moveable around the perimeter of the blade. 9. A saw comprising: a base assembly; a housing pivotally coupled to the base assembly; a substantially planar, circular blade supported at least partially within the housing, where the blade has a cutting edge around its periphery; a motor configured to rotate the blade; a pivot pin supported by the housing radially beyond the cutting edge of the blade, where the pivot pin extends substantially perpendicular to the plane of the blade; and a safety system including at least one brake member adapted to engage and stop the rotation of the blade, where the brake member has an aperture, and where the pivot pin extends through the aperture to mount the brake member on the pivot pin. 10. The saw of claim 9, where the housing includes an outer wall, and where the pivot pin extends at least partially through the outer wall of the housing. 11. The saw of claim 9, where the housing includes an outer wall, and where the outer wall supports the pivot pin. 12. The saw of claim 9, where the pivot pin includes two ends and where the pivot pin is supported at each of its two ends. 13. The saw of claim 9, where the pivot pin is positioned in a slot in the housing. 14. The saw of claim 9, where the pivot pin is moveable relative to the housing. 15. The saw of claim 9, where the pivot pin is moveable relative to the blade. 16. A saw comprising: a base assembly; a housing pivotally coupled to the base assembly; a substantially planar, circular blade supported at least partially within the housing, where the blade has a cutting edge around its periphery; a motor configured to rotate the blade; a pivot pin supported by the housing radially beyond the cutting edge of the blade, where the pivot pin extends substantially perpendicular to the plane of the blade; and a safety system including at least one brake member adapted to engage and stop the rotation of the blade, where the brake member has an aperture, and where the pivot pin extends through the aperture to mount the brake member on the pivot pin; where the pivot pin is moveable around the perimeter of the blade.
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