Patent ID: 9474426
Filing Date: 2016-10-25
CPC Classification: A46B,A47L,F16B,F16D

Claim Text:
1. A cleaning device coupling instrument that can couple a main body of a cleaning device to a cleaning part to be fixed to the main body, the cleaning device coupling instrument comprising: a first coupling member including a bulging part having a slant part, a side peripheral part of the slant part being tapered toward a tip thereof, and a first protruding part formed in a protruding manner around the bulging part; and a second coupling member including a fitted part in which the bulging part can be loosely fitted and a second protruding part formed in a protruding manner around the fitted part, the second protruding part being adjacent to the first protruding part; and the second coupling member having a plurality of engaging parts arranged around the fitted part; and the bulging part having a shape of a circular truncated cone and at least a single groove part, with which the engaging parts can engage, provided around itself; and the first protruding part having a tip part formed in a protruding manner in a direction in which the first protruding part protrudes, the tip part is inclined toward a radial direction with respect to a rotation axis of the first coupling member and having a peak part formed at an end on the rotation axis of the first coupling member and a face being slanted in a direction in which the first coupling member is rotated; and the second protruding part having a tip part formed in a protruding manner in a direction in which the second protruding part protrudes, the tip part is inclined toward a radial direction with respect to a rotation axis of the second coupling member and having a peak part formed at an end on the rotation axis of the second coupling member and a face being slanted in a direction in which the second coupling member is rotated.