Operating means for a chuck
First Claim
1. In a hand tool having a chuck with tool gripping elements, a collar in which said elements are movably supported, and a ring gear rotatable on the collar, said ring gear having bevel teeth engageable by a toothed chuck operator to rotate said ring selectively in a forward or reverse direction to tighten or loosen the tool gripping elements on a tool spindle, an improved chuck operator comprising, in combination:
- ring gear engaging means permanently supported on the chuck collar and movable on the collar to rotate the ring gear selectively in a forward or reverse direction;
and means permitting manual movement of the engaging means into and out of engagement with the ring gear teeth.
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Accused Products
Abstract
An operator for a Jacobs chuck has an annular support pivoted on the chuck collar for rocking movement about an axis perpendicular to the chuck axis, a gear tooth on the support between the pivot axis and the chuck ring gear which is selectively engageable with the ring gear teeth so that rocking the support causes the gear tooth to rotate the ring gear, and means permitting manual movement of the gear tooth into and out of engagement with the ring gear teeth. The annular support is counterbalanced so its center of mass is on the chuck axis, and a stabilizer normally maintains the support in a plane perpendicular to said axis.
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Citations
17 Claims
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1. In a hand tool having a chuck with tool gripping elements, a collar in which said elements are movably supported, and a ring gear rotatable on the collar, said ring gear having bevel teeth engageable by a toothed chuck operator to rotate said ring selectively in a forward or reverse direction to tighten or loosen the tool gripping elements on a tool spindle, an improved chuck operator comprising, in combination:
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ring gear engaging means permanently supported on the chuck collar and movable on the collar to rotate the ring gear selectively in a forward or reverse direction; and means permitting manual movement of the engaging means into and out of engagement with the ring gear teeth. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In a hand tool having a chuck with tool gripping elements, a collar in which said elements are movably supported, and a ring gear rotatable on the collar, said ring gear having bevel teeth engageable by a toothed chuck operator to rotate said ring selectively in a forward or reverse direction to tighten or loosen the tool gripping elements on a tool spindle, an improved chuck operator comprising, in combination:
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a support including pivot means by which said support is mounted on the chuck collar for rocking movement about a pivot axis perpendicular to the chuck axis; ring gear engaging means carried on the support between said pivot axis and the ring gear teeth, said engaging means being selectively engageable with the ring gear teeth so that rocking the support causes the engaging means to rotate the ring gear; and means permitting manual movement of the engaging means into and out of engagement with the ring gear teeth. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification