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US 2018/0003265 A1Published application
Rotary mop with durable gear drive unit
AssigneeHonors Co., Ltd.
InventorChul-Hwa JUNG
Life of this patent
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Abstract
Disclosed is a rotary mop with a gear drive unit according to the present invention. The gear drive unit includes: a lower bearing supporting a rotary shaft by being fitted over a lower end of the rotary shaft; and a first packing unit having a skirt-shaped wing coming into contact with at least an outer race of the lower bearing, and being seated on a lower surface of a worm wheel, in which the first packing unit prevents lubricant for a worm and a worm wheel, or a foreign substance from being introduced into the lower bearing.
Claims10
A rotary mop with a durable gear drive unit, the mop comprising:
- a gear drive unit transmitting a driving force of a drive motor to a rotary cloth, the gear drive unit including:
- a worm coupled to a drive shaft of the drive motor;
- a worm wheel meshing with the worm;
- a rotary shaft coupled to the worm wheel along an axis of the worm wheel in a state of being perpendicular to the drive shaft;
- a lower bearing supporting the rotary shaft by being fitted over a lower end of the rotary shaft;
- and
- a first packing unit having a skirt-shaped wing coming into contact with at least an outer race of the lower bearing, and being seated on a lower surface of the worm wheel,
- wherein the first packing unit prevents lubricant for the worm and the worm wheel, or a foreign substance from being introduced into the lower bearing.
5 more elements
Dependencies are inferred from the claim text.