Firing subsystem for use in a fast-acting safety system
First Claim
Patent Images
1. A cutting machine comprising:
- a blade configured to cut a workpiece;
a detection system configured to detect a dangerous condition between a person and the blade;
a reaction system adapted to perform a specified action to mitigate possible injury from the dangerous condition; and
a fusible member adapted to fuse to trigger the reaction system to perform the specified action upon detection of the dangerous condition.
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Accused Products
Abstract
Cutting machines with high-speed safety systems, and firing subsystems used in high-speed safety systems, are disclosed. The cutting machines may include a detection system adapted to detect a dangerous condition between a cutting tool and a person. A reaction system performs a specified action, such as stopping the cutting tool, upon detection of the dangerous condition. A fusible member or explosive may be used to trigger the reaction system to perform the specified action. A firing subsystem may be used to fuse the fusible member or fire the explosive upon detection of the dangerous condition.
456 Citations
18 Claims
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1. A cutting machine comprising:
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a blade configured to cut a workpiece; a detection system configured to detect a dangerous condition between a person and the blade; a reaction system adapted to perform a specified action to mitigate possible injury from the dangerous condition; and a fusible member adapted to fuse to trigger the reaction system to perform the specified action upon detection of the dangerous condition.
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2. A cutting machine comprising:
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a support structure; a cutting tool adapted to cut a workpiece, where the cutting tool is supported by the support structure; a detection system adapted to detect a dangerous condition between the cutting tool and a person; a reaction system adapted to perform a specified action upon detection of the dangerous condition; a fusible member to trigger the reaction system to perform the specified action upon fusing of the fusible member; and a firing subsystem to fuse the fusible member upon detection of the dangerous condition. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A cutting machine comprising:
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a cutting tool; a detection system adapted to detect contact between a person and the cutting tool; and a brake system including a brake pawl adapted to engage and stop the cutting tool when the detection system detects contact between the person and the cutter; where the brake system includes a release mechanism adapted to selectively restrain the brake pawl from engaging the cutter until the detection system detects contact between the person and the cutter; and where the release mechanism includes a fuse wire that is melted upon detection of contact between the person and the cutter.
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17. A cutting machine comprising:
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a cutter; a brake adapted to stop the cutter, where the brake has an idle position and a breaking position; an actuation system adapted to selectively move the brake from the idle position to the braking position, where at least a portion of the actuation system must be replaced after moving the brake from the idle position to the braking position; and wherein the at least a portion of the actuation system is a fusible member that is melted to allow the brake to move from the idle position to the braking position.
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18. A cutting machine comprising:
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a support structure; cutting means for cutting a workpiece, where the cutting means is supported by the support structure; detection means for detecting a dangerous condition between the cutting means and a person; reaction means for performing a specified action upon detection of the dangerous condition; fusible means for triggering the reaction means to perform the specified action upon fusing of the fusible means; and firing means for fusing the fusible member upon detection of the dangerous condition.
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Specification