Logic control with test mode for fast-acting safety system
First Claim
1. A machine having an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and where the machine comprises:
- a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool;
a reaction system adapted to mitigate the unsafe condition; and
a control system adapted to monitor the detection system and control actuation of the reaction system, where the control system includes a test mode feature configured to allow a user to test whether a particular material would be perceved by the detection system as a person in an unsafe condition, and where the test mode feature indicates whether the particular material would be perceived by the detection system as a person in an unsafe condition by triggering some action other than actuation of the reaction system.
2 Assignments
0 Petitions
Accused Products
Abstract
Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable. The control system also includes a test mode to test whether the detection system is working, to test whether various materials would be detected by the detection system, and/or to test whether various materials would trigger the reaction system.
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Citations
17 Claims
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1. A machine having an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and where the machine comprises:
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a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool; a reaction system adapted to mitigate the unsafe condition; and a control system adapted to monitor the detection system and control actuation of the reaction system, where the control system includes a test mode feature configured to allow a user to test whether a particular material would be perceved by the detection system as a person in an unsafe condition, and where the test mode feature indicates whether the particular material would be perceived by the detection system as a person in an unsafe condition by triggering some action other than actuation of the reaction system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A machine having an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and where the machine comprises:
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a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool; a reaction system adapted to mitigate the unsafe condition; and a control system adapted to monitor the detection system and control actuation of the reaction system, where the control system includes a test mode feature configured to allow a user to test whether the detection system is operating, where the test mode feature indicates whether the detection system is operating by triggering some action other than actuation of the reaction system, and where the test mode feature is further configured to allow a user to test whether a particular material would be precieved by the detection system as a person in an unsafe condition. - View Dependent Claims (12, 13)
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14. A machine having an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and where the machine comprises:
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a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool; a reaction system adapted to mitigate the unsafe condition; and a control system adapted to monitor the detection system and control actuation of the reaction system, where the control system includes a test mode feature configured to allow a user to test whether the detection system is operating, where the test mode feature indicates whether the detection system is operating by triggering some action other than actuation of the reaction system, and where the test mode feature is configured to allow a user to test whether the detection system is operating by the user touching the cutting tool when the cutting tool is not moving. - View Dependent Claims (15)
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16. A machine having an operative structure configured to perform a task, where the operative structure includes a cutting tool adapted to move in at least one motion, and where the machine comprises:
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a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool; a reaction system adapted to mitigate the unsafe condition; and a control system adapted to monitor the detection system and control actuation of the reaction system, where the control system includes a test mode feature configured to allow a user to test whether the detection system is operating, where the test mode feature indicates whether the detection system is operating by triggering some action other than actuation of the reaction system, and where the reaction system is disengaged while the test mode feature is enabled. - View Dependent Claims (17)
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Specification