| 摘要 |
PURPOSE: A caster capable of adjusting height and covering balls is provided which gives a pleasing appearance by covering balls or wheels, which is used to be adaptable to any type of furniture, and which easily fix the furniture without fluctuation to provide for convenience in use. CONSTITUTION: The caster(1) for furniture comprises: a caster housing(10) having a disk-shaped handle surface(12), a shaft bolt fastening hole(14) and a lower thread(16); a first cylindrical covering(20) having an upper thread(22) and a lower thread(24), the upper thread(22) fastened to the lower thread(16) of the caster housing(10); a second cylindrical covering(30) having an upper thread(32) and a handle surface(34), the upper thread(32) fastened to the lower thread(24) of the first covering(20); a ball cover(40) having a shaft bolt(42) fastened to the shaft bolt fastening hole(14) and coupled to an axially connected ball(46); and a plurality of shaft bolt fastening nuts fixed on a lower frame of the furniture.
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