Interdental brush and production method thereof

Abstract

Relates to an interdental cleaning tool provided on the peripheral surface of a shaft member 1 with one or a plurality of projections 2, the projections being pinnulate elements or cirrate elements, and shaft member 1 and projections 2 being integrally molded from synthetic resin, whereby there may be afforded a soft touch against the tissues of the oral cavity during use, deviation in extraction force of the pinnulate members and cirrate members may be prevented, and production costs may be reduced.

Description

technical field [0001] The invention relates to a interdental cleaning tool which is inserted into the gap between adjacent teeth to clean the gap and its manufacturing method. Background technique [0002] Conventionally, interdental cleaners that are inserted into the gap between adjacent teeth to clean the gap are as follows. That is, a metal wire is bent into a U-shape at the center of its length direction, a number of hair-like bodies made of synthetic resin are arranged between the formed bent pieces, one end and the other end of the bent piece are pinched, and the bent piece is bent. After the flap is twisted to sandwich the hair-like body, the end of the hair-like body is cut off, the lengths of the hair-like body are aligned, and one end of the above-mentioned metal wire is attached to a handle of predetermined length made of synthetic resin. [0003] However, in this interdental cleaner, although the synthetic resin hair-like bodies are sandwiched between the meta...

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Problems solved by technology

[0003] However, in this interdental cleaner, although the synthetic resin hair-like bodies are sandwiched between the metal wires, the metal wires are sometimes bent during use. In addition, the hair-like bodies are sandwiched by twisting the metal wires, so , the fixing force of the trichomes on the metal wire, that is, the tensile strength of the trichomes is sometimes uneven

In addition, when using metal wires to make interdental cleaners, the metal wires must be bent into a U-shape, hair-like bodies are arranged between the bent pieces, and then the bent pieces are twisted to clamp the hairy bodies. In addition, the above-mentioned metal wires must be The wire is installed on the handle with a predetermined length, so the process is complicated and the cost is high

In addition, since the exposed metal wire is used, there is no soft feeling in contact with the tissues in the oral cavity

[0004] In addition, in the prior art, also propose not to adopt metal wire, and all interdental cleaners that form with synthetic resin, but, this is only a kind of assumption, does not disclose specific content, also does not adopt so far.

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