| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steel strut which is screwed to a sleeper without rotation, capable of reducing the volume of metallic sound and adding a function for temporary fixing. <P>SOLUTION: A steel strut 1 comprises a foundation part at a lower end, a sleeper support part 10 at an upper end, and a bundle support part therebetween with a turnbuckle pipe for height adjustment. The sleeper support part 10 is formed of one sheet of steel plate, the top face of which is provided with at least two projections 12 lined in two rows. The two rows of the projections 12 fit in two opposing side surface parts of a sleeper 21 to be supported. The external surface of each of the projections 12 has a spherical curvature. At least the part of the sleeper support part 10, where the projections 12 are lined up, and the inner portion thereof are entirely or partly provided with an adhesion layer having a weak adhesive force allowing for attachment and detachment, so that a function for temporary fixing is added. Instead of the adhesion layer, a sliding layer may be provided for use. <P>COPYRIGHT: (C)2012,JPO&INPIT |
