Motion detecting system for use in a safety system for power equipment
First Claim
1. A woodworking machine comprising:
- a movable cutting tool configured to move to cut a workpiece;
a control system configured to detect a dangerous condition between a person and the cutting tool and at least one other condition; and
a reaction system triggerable by the control system to mitigate the dangerous condition;
where the control system is further configured not to trigger the reaction system when a dangerous condition is detected if the other condition is detected.
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Accused Products
Abstract
A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine is disclosed. The machine includes a reaction system associated with the detection system to cause a predetermined action to take place relative to the working portion upon detection of the dangerous condition. A motion detection system is adapted to detect motion of the working portion and to disable the reaction system when the working portion is not moving. The motion detection system may include a sensor, such as a Hall effect sensor, an electromagnetic field sensor, an optical sensor, or an electrical sensor. The woodworking machine may take the form of a saw, the working portion may be a blade adapted to cut when spinning, and the dangerous condition may be a person contacting the blade.
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Citations
20 Claims
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1. A woodworking machine comprising:
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a movable cutting tool configured to move to cut a workpiece; a control system configured to detect a dangerous condition between a person and the cutting tool and at least one other condition; and a reaction system triggerable by the control system to mitigate the dangerous condition; where the control system is further configured not to trigger the reaction system when a dangerous condition is detected if the other condition is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A woodworking machine comprising:
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a movable cutting tool configured to move to cut a workpiece; a control system configured to detect a dangerous condition between a person and the cutting tool; and a reaction system triggerable by the control system to mitigate the dangerous condition upon detection of the dangerous condition; where the control system is further configured to determine if the cutting tool is moving, and configured not to trigger the reaction system if the cutting tool is not moving.
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Specification