Clamping structure for a tool
AssigneeKabo Tool Company
InventorChih-Ching HSIEH
Life of this patent
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Abstract
A clamping structure for a tool is provided. The clamping structure includes a plurality of grooves and an inner surface. The inner surface includes two inclined planes. Two convex arcs are connected to the inclined planes. Two concave arcs are connected to the inclined planes, and a middle salient connects one of the concave arcs to the other of the concave arcs. Wherein, an angle between a hypothesized extension line of one of the inclined planes and a hypothesized central line of one of the grooves is 40 degrees-50 degrees. Whereby, the clamping structure is easy to grip a damaged bolt or a damaged nut.
Claims9
A clamping structure for a tool, wherein the clamping structure is located in an offset ring of the tool, and comprises:
- a plurality of grooves disposed equidistantly in the offset ring;
- and
- an inner surface located between two grooves, the inner surface comprising, in an order from the grooves to a center of the inner surface:
- two inclined planes, wherein an angle between a hypothesized extension line of one of the inclined planes and a hypothesized central line of one of the grooves is 40 degrees-50 degrees;
- two convex arcs connected to the two inclined planes respectively;
- two concave arcs connected to the two inclined planes respectively;
- and
- a middle salient connecting one of the concave arcs to the other of the concave arcs.
Dependencies are inferred from the claim text.