| 摘要 |
Disclosed is a caster for furniture. The caster for furniture according to the present invention includes a cylindrical housing having a plurality of stoppers coupled to the internal center by being separated as much as a predetermined distance along the circumference; a gravitational movement unit, coupled to the top of the housing, to conduct a relative linear movement about the housing by the self-weight until being fastened and stopped by the stoppers; and a ball caster assembly, having a ball caster on the bottom and coupled to the bottom of the housing, to conduct a relative rotational movement about the gravitational movement unit after conducting the linear movement about the housing so that the ball caster can be exposed from the housing. |
