SCREW SPIKE STRUCTURE FOR TIE CAPABLE OF REDUCING DAMAGE OF FIBERS OF TIE

摘要

To provide a screw spike structure for a tie capable of reducing damage of fibers of the tie when the screw spike for the tie is screwed in the tie by changing a screw thread geometry from a right triangle to a scalene triangle.SOLUTION: There is provided a screw spike structure for a tie configured to reduce damage of fibers of the tie when the screw spike for the tie is screwed in the tie by changing a screw thread geometry from a right triangle to a scalene triangle. There is also provided a screw spike structure for a tie capable of shortening work hours of fastening or loosening one screw spike for the tie to finish the work within scheduled work hours.SELECTED DRAWING: Figure 1