초록 ▼

A locking fastener assembly comprising a nut and a washer. The nut and washer each have opposed load bearing surfaces which include a series of annularly extending, slightly inclined faces forming shallow undulations around each surface. The load bearing surface on the nut is generally spherically c

A locking fastener assembly comprising a nut and a washer. The nut and washer each have opposed load bearing surfaces which include a series of annularly extending, slightly inclined faces forming shallow undulations around each surface. The load bearing surface on the nut is generally spherically convex and the load bearing surface on the washer is generally spherically concave. The nut rotates as it is installed while the washer is prevented from rotating so that the undulating bearing surface on the nut slides over the undulating bearing surface on the washer against ever increasing resistance until the assembly is properly seated and the nut is effectively prevented from counter-rotating by interference between opposed, inclined faces. A concave clamping surface is formed on the outer end of the washer on a radially extending flange. The flange flexes when the assembly is installed and resiliently urges the washer against the nut.

대표청구항 ▼

The invention claimed is: 1. A locking fastener assembly, comprising:a) a fastener nut and a fastener washer rotatable relative to each other about a common axis;b) a washer contacting surface on said fastener nut and a nut contacting surface on said fastener washer, both the washer contacting surfa

The invention claimed is: 1. A locking fastener assembly, comprising:a) a fastener nut and a fastener washer rotatable relative to each other about a common axis;b) a washer contacting surface on said fastener nut and a nut contacting surface on said fastener washer, both the washer contacting surface and the nut contacting surface being configured to resist rotating relative to each other;c) both the washer contacting surface and the nut contacting surface include a plurality of inclined faces oriented about the common axis;d) said fastener nut includes a nut body that is provided with a skirt extending from one end of said nut body;e) said fastener washer including a washer body with an aperture extending through the washer body;f) said skirt extending into said aperture when said fastener nut and fastener washer are assembled;g) at least some portion of said skirt being deformed outwardly after said fastener nut and fastener washer are assembled so as to loosely hold said fastener washer on said fastener nut;h) said nut body is internally threaded so that the nut body can be turned onto an externally threaded member; andi) said washer body including an element formed in said aperture for preventing said fastener washer from rotating when said fastener nut is turned onto said threaded member.