| 摘要 |
The present invention provides a caster having a dustproof structure for moving an air conditioner such as a humidifier and a dehumidifier for controlling indoor humidity for health or movable home appliances with a built-in motor. The caster having a dustproof structure of the present invention comprises: a base element combined with the bottom surface of the device; a pair of shafting elements placed parallel on both sides of the base element; an operating hole allowing the shaft of a wheel to accommodated and freely rise in a vertical longitudinal direction on each of the shafting elements; a hanging hole placed near the operating hole; and an elastic element placed in between the shaft of the wheel and the hanging hole, whose one end is hung on the shaft and whose the other end is hung on the hanging hole. The present invention pushes down a caster wheel falling from the indoor floor which is not flat among the casters with restoring force of the elastic element to allow contact with the indoor floor or push the caster wheel toward the bottom of the operating hole and to suppress vibration and noise due to a permitted allowance or gap of the part assembly of the caster. |
