US 5,961,266 A · Anti-vibration bolt and nut structure

Abstract

An anti-vibration bolt and nut structure with the shank of a bolt including a plurality of axial teeth. The shank is received in an external threaded sleeve comprising a helical spring. An external wall of the sleeve includes a plurality of engaging internal teeth that mesh with the axial teeth so that the rotational force created by turning the head of the bolt is transmitted to the threads. The shank of the bolt includes a screw hole that can be rotated to rotate the shank when the bolt is use in a closed screw connection threaded hole. The nut includes a hole having a plurality of axial internal engaging teeth that mesh with external engaging teeth of an internal threaded lining to engage the internal threads with the nut. A screw hole in the internal threaded lining to receive a screw so that the internal threaded lining is engaged in the nut. The bolt and the nut can be used with a conventional nut and a conventional bolt respectively.

Claims4

Dependent claims

An anti-vibration bolt structure comprising:

a bolt shank, an external threaded sleeve, a countersunk screw, and a collar;
wherein,
said bolt shank has a bolt head on one end,
said countersunk screw has a head on one end, said countersunk screw includes a shank with threads thereon, each end of said countersunk screw includes a depression to receive a wrench therein,
said bolt shank includes a plurality of exterior axial teeth and a central through screw hole,
said external threaded sleeve is formed as a helical spring, and an inner surface of said external threaded sleeve includes a plurality of axial engaging internal teeth;
such that when
said bolt shank is inserted into said external threaded sleeve, said axial teeth of said bolt shank engage said axial engaging internal teeth of said external threaded sleeve, and said collar contacts said head of said countersunk screw, a thread portion of said countersunk screw is screwed in said through screw hole to cause said collar on said head of said countersunk screw to abut an end of said external threaded sleeve.

5 more elements

Dependencies are inferred from the claim text.

Anti-vibration bolt and nut structure

Life of this patent

Anti-vibration bolt and nut structure

Life of this patent

Abstract

Claims4