Cleaning sponge roller
AssigneeAion Co., Ltd.
InventorsTadashi Kawaguchi, Hidehiko Tsukada, Takashi Yamanaka
Life of this patent
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Abstract
A cleaning sponge roller 1 is made of a polyvinyl acetal porous material having elasticity in a wet state, and includes a roller body 3 in an approximate cylinder form, and a plurality of protrusions 5 formed integrally on an outer peripheral surface 3a of the roller body 3, and rotates the multiple protrusions 5 to make contact with a surface to be cleaned so as to clean the surface. Outer surfaces of the protrusions 5 respectively have a top outer surface 5a (interior exposed surface) making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions 5 are exposed.
Claims11
A cleaning sponge roller, which is made of a polyvinyl acetal porous material having elasticity in a wet state and comprises a roller body in an approximate cylinder form and a plurality of protrusions formed integrally on an outer peripheral surface of the roller body and rotates the protrusions to make contact with a surface to be cleaned so as to clean the surface;
- and the outer peripheral surface of the roller body and outer peripheral surfaces of the protrusions are covered by an outer skin layer;
- and wherein
- outer surfaces of the protrusions respectively have an interior exposed surface making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions are exposed.
A cleaning sponge roller, which is made of polyvinyl acetal porous material having elasticity in a wet state and comprises a roller body in an approximate cylinder form and a plurality of protrusions formed integrally on an outer peripheral surface of the roller body and rotates the protrusions to make contact with a surface to be cleaned so as to clean the surface wherein
- outer surfaces of the protrusions respectively have an interior exposed surface making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions are exposed,
- an outer peripheral surface of the roller body is covered by an outer skin layer with a lower open area ratio than that of the interior exposed surface,
- outer peripheral surfaces of the protrusions are covered by an outer skin layer with a lower open area ratio than that of the interior exposed surface, and
- the outer skin layer of the protrusion continues from the outer skin layer of the roller body.
Dependencies are inferred from the claim text.