Patent Number: 6,253,468

Title: Spike structure for sporting shoes

Abstract: A spike structure consists of a spike body made of a plastic material, and a self-tapping screw 3 made of a metal. The spike body 2 is comprised of a flange-shaped portion 4 and a threaded stud which has a thread on the outer surface thereof and extends from one surface of said flange-shaped portion 4. An axial bore is formed through the flange-shaped portion 4 and the threaded stud 5, while slits are formed in said threaded stud 5, extending to the free end of said threaded stud. A self-tapping screw 3 is inserted with tapping into the axial bore to be fixed to said spike body. Said self-tapping screw 3 is configurated to stretch said threaded stud radially outwardly when inserted into the axial bore of spike body.

Inventors: Hirota; Kashichi (Hachioji, JP)

Assignee: Kyowa Electric and Chemical Co., Ltd.

International Classification: A43C 15/00 (20060101); A43C 15/16 (20060101); A43C 015/02 ()

Expiration Date: 07/03/2018