| 摘要 |
PROBLEM TO BE SOLVED: To rest a side plate, independently of rotation of a wheel.SOLUTION: A double-wheel caster 2 includes wheels 5A and 5B supported freely rotatably on both sides 3A and 3B of a caster body 3. In both side surfaces 3A and 3B of the caster body 3, a fixation shaft 4 is provided protrusively. The fixation shaft 4 is provided with a shaft attachment member 11 which is formed so as to match a through hole 10 formed in the caster body 3 in the form of a non-circular cross section and inserted into the through hole 10 and whose both ends protrudes from both ends 3A and 3B of the caster body and shaft members 12 and 12 engaged each in the protrusions 11A and 11B. The shaft members 12 have a cylindrical part 12A to be engaged in the protrusions 11A and 11B, and a flange part 12B is formed at the outer end of the cylindrical part 12A. The wheels 5A and 5B are engaged freely rotatably in the cylindrical parts 12A of the shaft members 12 through shaft holes 7, and a side plate 15 is fitted freely removably to the flange part 12B. |
