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US 12,000,427 B2Granted
Fall prevention tool
AssigneeAdvanex Inc.
InventorSakae Okamura
Life of this patent
Estimating the term…
Abstract
Provided is a fall prevention tool (1) for a nut (N), which is installed in a bolt (B) to which the nut (N) is attached, the tool including a bolt holding part (2b) into which the bolt (B) is inserted, and a nut holding part (3) that is provided integrally with the bolt holding part (2b), is provided on an outer periphery of the nut (N), and is configured to prevent rotation of the nut (N) by restoring force.
Claims12
A fall prevention tool for a nut, which is installed in a bolt to which the nut is attached, the tool comprising:
- a bolt holding part into which the bolt is inserted;
- and
- a nut holding part that is provided integrally with the bolt holding part, is provided on an outer periphery of the nut, and is configured to prevent rotation of the nut by restoring force by a winding part,
- wherein the winding part is a coil spring shaped part, and
- wherein the winding part generates force in a direction in which the bolt is interposed by the bolt holding part, and also generates force urging the nut in a tightening direction in which the nut is tightened by the nut holding part.
2 more elements
Dependencies are inferred from the claim text.