Core for washing sponge roller
AssigneeAion Co., Ltd.
InventorsNoriyoshi Okuzono, Hiroshi Miyaji, Yoichi Tanaka
Life of this patent
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Abstract
A core for a cleaning sponge roller and a cleaning sponge roller set include a core and a cleaning sponge roller mounted on the core. The core for the cleaning sponge roller is in a substantially cylindrical shape including a bore extending in an axial direction and a plurality of small holes communicating between the bore and a circumferential outer surface of the core. The diameter of the bore is 10 mm or more. The diameter of the small holes is 2.5 mm or more. A total of cross-sectional areas of openings of all the small holes is larger than a cross-sectional area of the bore.
Claims8
A core for a cleaning sponge roller, said core being in a substantially cylindrical shape comprising:
- a bore extending in an axial direction and a plurality of small holes communicating between said bore and a circumferential outer surface of the core, wherein
- a diameter of said bore is 10 mm or more,
- a diameter of said small holes is 2.5 mm or more, and
- a total of cross-sectional areas of the openings of the plurality of the small holes is larger than a cross-sectional area of the bore.
Dependencies are inferred from the claim text.