Device for locking a nut on a bolt
AssigneeDeutsche Aerospace Airbus GmbH
InventorsGuenter Behrens, Wilfried Ellmers
Life of this patent
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Abstract
A nut lock or locking cap secures a nut on a bolt so that the nut cannot loosen itself and so that the nut cannot fall off the bolt. For this purpose the nut lock has a first ring section that at least partially surrounds the bolt and a second ring section that at least partially surrounds the nut. The two ring sections are interconnected by a radially extending flange, whereby the first ring section has a smaller diameter than the diameter of the second ring section. The first ring section has at least one through-hole that can be aligned with a cross-bore in the bolt for the insertion of a locking pin. The second ring section has radially inwardly facing profiled surfaces that enter into a form-locking, force-transmitting connection with the outer profile of the nut.
Claims18
A device for locking a nut on a bolt, comprising a bolt having a threaded end, a threaded nut on said bolt, a safety cap on said nut and bolt for holding said nut in a fixed position on said threaded bolt end, said safety cap comprising a first ring section at least partly surrounding said threaded bolt end, a second ring section at least partly surrounding said threaded nut, and a flange section connecting said first ring section to said second ring section, said second ring section comprising a radially inwardly facing profiled surface engaging said nut in a form-fitting manner, said first ring section having at least one hole therein, said threaded end of said bolt having a cross-bore therein, said device further comprising a locking pin extending through said hole into said cross-bore of said bolt for securing said safety cap to said bolt against relative rotation between said bolt and said safety cap, and wherein said second ring section comprises a number of locking ring segments circumferentially spaced from each other around said nut, each of said locking ring segments having said radially inwardly facing profiled surface for engaging said nut in a force transmitting manner.
A nut lock, comprising a safety cap for engaging a bolt and a nut on said bolt for holding said nut in a fixed position, said safety cap comprising a first ring section for at least partly surrounding a bolt end, a second ring section for at least partly surrounding said nut, and a flange section connecting said first ring section to said second ring section, said second ring section comprising a radially inwardly facing profiled surface for engaging said nut in a form-fitting, force transmitting manner, said first ring section having at least one hole therein for a locking pin that is adapted to pass through said at least one hole and into a cross-bore in said bolt, and wherein said second ring section comprises a number of locking ring segments circumferentially spaced from each other around said nut, each of said locking ring segments having said radially inwardly facing profiled surface for engaging said nut in a force-transmitting manner.
Dependencies are inferred from the claim text.