Power saw with improved safety system
First Claim
Patent Images
1. A miter saw comprising:
- a base assembly defining a cutting zone and configured to support workpieces in the cutting zone;
a pivot arm coupled to the base assembly and selectively moveable toward and away from the cutting zone;
a motor assembly;
a rotatable arbor supported by the pivot arm and driven by the motor assembly;
a rotatable blade mounted on the arbor and configured to cut workpieces supported within the cutting zone;
a detection system configured to detect one or more dangerous conditions between a person and the blade; and
a reaction system configured to urge the pivot arm away from the base assembly upon detection by the detection system of the one or more dangerous conditions.
2 Assignments
0 Petitions
Accused Products
Abstract
A miter saw having a base and an arm that pivots toward the base is disclosed. A blade is supported by the arm, and is designed to cut workpieces resting on the base when the arm and blade pivot downward. The saw includes a detection system configured to detect one or more dangerous conditions between a person and the blade, such as when a person accidentally touches the spinning blade, and the saw includes a reaction system to urge the arm and blade away from the base when the dangerous condition is detected.
-
Citations
15 Claims
-
1. A miter saw comprising:
-
a base assembly defining a cutting zone and configured to support workpieces in the cutting zone;
a pivot arm coupled to the base assembly and selectively moveable toward and away from the cutting zone;
a motor assembly;
a rotatable arbor supported by the pivot arm and driven by the motor assembly;
a rotatable blade mounted on the arbor and configured to cut workpieces supported within the cutting zone;
a detection system configured to detect one or more dangerous conditions between a person and the blade; and
a reaction system configured to urge the pivot arm away from the base assembly upon detection by the detection system of the one or more dangerous conditions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A miter saw comprising:
-
a base assembly defining a cutting zone and configured to support workpieces in the cutting zone;
a pivot arm coupled to the base assembly and selectively moveable toward and away from the cutting zone;
a motor assembly;
a rotatable arbor supported by the pivot arm and driven by the motor assembly;
a rotatable blade mounted on the arbor and configured to cut workpieces supported within the cutting zone;
a detection system configured to detect one or more dangerous conditions between a person and the blade; and
reaction means for urging the pivot arm away from the base assembly upon detection by the detection system of the one or more dangerous conditions.
-
Specification