ORAL CARE IMPLEMENT

摘要

An oral care implement having an internal reservoir and improved leakage prevention. In one embodiment, the invention can be a toothbrush comprising: a handle (110) comprising an internal reservoir (140); a head coupled to the handle; an annular neck (180) extending from the handle, the annular neck having an inner surface (181) defining a passageway (182) into the internal reservoir; an end cap (150) comprising: a cap body (160) defining a cap socket (161) and comprising an annular wall (162) and an end portion (163); an annular plug wall (170) defining a central chamber (173), the annular plug wall protruding from the end portion into a cap socket to form an annular chamber (165) between an outer surface (172) of the annular plug wall and an inner surface (166) of the annular wall; and a first annular seal member (190) protruding from the outer surface of the annular plug wall; and the end cap coupled to the handle to seal the passageway in a fluid-tight manner.

主权项

1. A toothbrush comprising:
a handle extending along a handle axis from a proximal end to a distal end, the handle comprising an internal reservoir containing an oral care fluid; a head coupled to the distal end of the handle and having a plurality of tooth cleaning elements; an annular neck extending from the proximal end of the handle, the annular neck having an inner surface that defines a passageway into the internal reservoir of the handle; an end cap comprising:
a cap body defining a cap socket, the cap body comprising an annular wall and an end portion;an annular plug wall having an inner surface defining a central chamber, the annular plug wall protruding from the end portion into the cap socket to form an annular chamber between an outer surface of the annular plug wall and an inner surface of the annular wall of the cap body; anda first annular seal member protruding from the outer surface of the annular plug wall; and the end cap coupled to the handle to seal the passageway in a fluid-tight manner such that the annular neck extends into the annular chamber, the annular plug wall extends into the passageway, and the first annular seal member biased into contact with an annular portion of the inner surface of the annular neck.