CLEANING DEVICE COUPLING INSTRUMENT AND CLEANING DEVICE

摘要

A coupling instrument is provided that can easily attach or detach a main body to or from a cleaning part in a cleaning device. The coupling instrument includes a first coupling member including a bulging part having a slant part. A side peripheral part of the slant part is tapered toward a tip thereof. A first protruding part is formed in a protruding manner around the bulging part. The coupling instrument further includes 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 is adjacent to the first protruding part; and the second coupling member has a plurality of engaging parts arranged around the fitted part.

主权项

1. A 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 the rotation axis of the second coupling member and having a peak part formed at an end on a rotation axis of the second coupling member and a face being slanted in a direction in which the second coupling member is rotated.