TABLE SAW WITH MECHANICAL FUSE
First Claim
1. A table saw comprising:
- a work-piece support surface;
a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above the work-piece support surface and a second swing arm position whereat the portion of the shaping device does not extend above the work-piece support surface;
a mechanical fuse positioned to maintain the swing arm assembly in the first swing arm position;
an actuator configured to generate a force sufficient to break the mechanical fuse and to force the swing arm assembly away from the first swing arm position and toward the second swing arm position; and
a control system configured to actuate the actuator in response to a sensed condition.
1 Assignment
0 Petitions
Accused Products
Abstract
A power tool in one embodiment includes a work-piece support surface, a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above the work-piece support surface and a second swing arm position whereat the portion of the shaping device does not extend above the work-piece support surface, a mechanical fuse positioned to maintain the swing arm assembly in the first swing arm position, an actuator configured to apply a force to the mechanical fuse sufficient to break the mechanical fuse and to force the swing arm assembly away from the first swing arm position and toward the second swing arm position, and a control system configured to actuate the actuator in response to a sensed condition.
59 Citations
19 Claims
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1. A table saw comprising:
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a work-piece support surface; a swing arm assembly movable along a swing path between a first swing arm position whereat a portion of a shaping device supported by the swing arm assembly extends above the work-piece support surface and a second swing arm position whereat the portion of the shaping device does not extend above the work-piece support surface; a mechanical fuse positioned to maintain the swing arm assembly in the first swing arm position; an actuator configured to generate a force sufficient to break the mechanical fuse and to force the swing arm assembly away from the first swing arm position and toward the second swing arm position; and a control system configured to actuate the actuator in response to a sensed condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A table saw comprising:
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a work piece support surface; a shaping device support shaft automatically retractable along a retraction path from a first position to a second position in response to a sensed condition, wherein the second position is more distal to the work piece support surface than the first position; a mechanical fuse positioned to maintain the shaping device support shaft in the first position; and a control system configured to cause the shaping device support shaft to retract along the retraction path in response to a sensed condition by breaking the mechanical fuse. - View Dependent Claims (10, 11)
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12. A power tool, comprising:
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a latch hold mechanism; a swing arm movable along a swing arm path between an upper first swing arm position and a lower second swing arm position; a mechanical fuse supporting the swing arm in the first swing arm position; an actuating device configured to transfer a first force to the swing arm sufficient to break the mechanical fuse; and a control system configured to control the actuating device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification