14-03-2019 дата публикации
Номер: US20190075920A1
Принадлежит:
A manual toothbrush, comprising: a toothbrush main body, the casing of the top portion of the toothbrush main body is configured with one or more first connecting holes; one or more bristle tuft assemblies, every bristle tuft assembly comprises a bristle tuft and a base, bristle tufts of one or more bristle tuft assemblies go through one or more first connecting holes respectively; a spring assembly, the spring assembly comprises one or more springs, every spring comprises a coil and a coil fastening plate connecting with the coil, coils of one or more springs contact with bases of one or more bristle tuft assemblies respectively; the spring assembly also comprises an assembly base plate and an assembly surface plate, the coil fastening plate of every spring is clamped and fixed between the assembly base plate and the assembly surface plate. This manual toothbrush skillfully is configured with springs, based upon the contact between the spring and the bristle tuft assembly, to realize the flexible movement and spring force driving of the bristle tuft, making every bristle tuft independently move upward and downward according to the surface and structure of teeth, achieving the benefit of effective cleaning and durable usage. 1. A manual toothbrush , comprising:{'b': 1', '1', '11, 'a toothbrush main body (), the casing of the top portion of said toothbrush main body () is configured with one or more first connecting holes ();'}{'b': 2', '2', '21', '22', '21', '2', '11, 'one or more bristle tuft assemblies (), every said bristle tuft assembly () comprises a bristle tuft () and a base (), bristle tufts () of one or more said bristle tuft assemblies () go through one or more said first connecting holes () respectively;'}{'b': 3', '3', '31', '31', '312', '311', '312', '312', '31', '22', '2, 'a spring assembly (), said spring assembly () comprises one or more springs (), every said spring () comprises a coil () and a coil fastening plate () connecting with said coil (), ...
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