Earthing nut
AssigneeIwata Bolt Kabushiki Kaisha
InventorsNobuhide SUZUKI, Kenta TASAKA
Life of this patent
Estimating the term…
Abstract
An earthing nut 11 according to the present invention, in which a fastening force is great and a conduction state can be reliably achieved with respect to a bolt 33, includes a screw hole 22 that is engaged with the bolt 33 in which screw threads 21 are formed at a pitch P. In all screw threads 21 provided in the screw hole 22, a pitch Pn of the screw thread 21 is greater than the pitch P of the screw thread 21 of the bolt 33, and an angle θ [degrees] of the screw thread 21 is formed to be greater than 60 degrees. In a portion of the screw hole 22 in an axial direction, a cut-out 25 is provided extending in the axial direction, and an end surface of the screw thread 21 facing the cut-out 25 forms a cutting edge 26.
Claims10
An earthing nut comprising:
- a screw hole that is engaged with a bolt in which screw threads are formed at a pitch P,
- wherein in all screw threads provided in the screw hole, a pitch Pn of the screw thread is greater than the pitch P of the screw thread of the bolt, and an angle θ of the screw thread is formed to be greater than 60 degrees, and
- wherein in a portion of the screw hole in an axial direction, a cut-out is provided extending in the axial direction, and an end surface of the screw thread facing the cut-out is formed as a cutting edge.
Dependencies are inferred from the claim text.