| 摘要 |
PURPOSE: A stud pin structure of a stud tire is provided to enable radial shape projections to be inserted into a radial groove with a lower disk of a cylindrical body which is inserted into an installation groove of a thread. CONSTITUTION: A stud pin structure of a stud tire comprises: a cylindrical body(3) with a lower opening(5) that has a plurality of guide grooves(6) with fixed angular intervals along the longitudinal direction of the cylindrical body; and a lower disk(8) which has a plurality of guides(7) that engage the guide grooves and move along the longitudinal direction of the cylindrical body. Radial protrusions(9) move in the radial direction of the cylindrical body and are installed between the lower disk and the guides.
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