| 摘要 |
PROBLEM TO BE SOLVED: To prevent a problem that an endless belt of a caster with endless structure is formed of a comparatively flexible material such as rubber, and when hitting the gap, a part thereof is pushed inward to be flexed inward by a gap, and thus easily stack because big force is required to get over the gap. SOLUTION: This caster comprises a first wheel 3 supported by an attached leg 2, a second wheel 4 supported by an axle 8 on one end of a suspension arm 7 with another end of which supported by an axle 6 as a coaxis, and a winding member 5 wound around them. The winding member 5 is an endless belt formed by connecting independent pieces 25. The outer periphery of the piece 25 is a wide section. When the winding member 5 is flexed inward to be curved inversely, the adjacent pieces abut on each other to prevent the inward flex. COPYRIGHT: (C)2005,JPO&NCIPI
|
