LATERALLY-INSTALLED WHEEL RIM STRUCTURE

PROBLEM TO BE SOLVED: To provide a laterally-installed wheel rim structure that prevents falling off and rotation of a side ring and that is easily assembled. SOLUTION: The rim structure includes a cylindrical rim body 10 having a first flange 11, and a side ring 20 including a second flange 21. The rim body 10 has, on a circumference of a side edge thereof, a plurality of first locking recesses 15 that are formed in a circumferential direction at certain intervals. The side ring 20 has second locking recesses 25 that are formed in the circumferential direction at certain intervals so as to correspond to the first locking recesses 15. A plurality of locking pieces 30 are placed outside the side ring 20 in a width direction of the rim body 10, and are fitted into the first locking recesses 15 so that each locking piece 30 cannot move either in the circumferential direction or the width direction and also fitted into the second locking recesses 25 so that each locking piece 30 cannot move in the circumferential direction. COPYRIGHT: (C)2010,JPO&INPIT