Locknut with segmental locking elements
AssigneeJos. Dyson & Sons, Inc.
InventorRobert N. Heighberger
Life of this patent
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Abstract
There is disclosed locknut construction comprising a nut of form and size similar to a usual nut which includes a nut body and locking section integral therewith, said section including segments extending angularly, radially, inwardly, which are of pre-determined length, whereby flattening of the segments when the nut is tightened on a mating threaded member and against a bearing surface from which such member extends, will cause said segments to enter between the crests of said threads, tending to deform the same, resulting in locking of the locknut body against undesirable reverse rotation and loosening thereby.
Claims7
In locknut construction of the class described, in combination, a mating member and a nut body, said nut body having a threaded section and a locking portion, said portion comprising a series of radial segments of substantially constant thickness extending angularly inwardly and upwardly out of the plane of the body and integrally connected thereto, wherein the free ends of the segments initially terminate in a cylindrical plane substantially coinciding with the theoretical root of threads in the threaded section of the body, the said segments having spaced upper and lower surfaces, the longest radial dimension of the segments being such that when the segments are flattened for locking engagement with the ends of the mating member by deforming such mating member threads and the ends of the nut body segments extend to the root diameter of the threads of such member, removal of said nut body thereafter requiring greatly increased effort resulting in further deforming of the threads of each part, said effort being substantially increased over that availed of to effect locking action.
Dependencies are inferred from the claim text.