Patent Application
20140359955
1. Field of the Invention
The present invention relates to a toothbrush, especially to a toothbrush capable of slight bending and wobbling for applying an enhanced hygiene effect on a tooth surface.
2. Description of the Prior Art
As an indispensible oral-hygiene task of everyday life, tooth brushing eliminates food residues and dental plaques and stimulates the gums so as to facilitate circulation and to strengthen the pathogen-resisting abilities of tissues. A toothbrush is an instrument for tooth brushing. The fact that using a well-designed toothbrush provides significant oral hygiene effects has indicated the importance of toothbrushes.
Teeth are solid objects whose surfaces are not flat, while the tufted bristles of a toothbrush head are also solid in terms of abutting against the teeth, even though individual filaments of the bristles are resilient. As a result, the bristle tufts, which are not able to perfectly match the surfaces of teeth, inevitably leave certain unreachable dead angle and fail to furbish all the surfaces of the teeth.
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However, the gap 34 defined between the actuating block 32 and the base 40 of the conventional toothbrush receives impurities or scraps which are not to be easily removed and tend to provide nourishment for bacterial growth. Thus the conventional toothbrush may instead jeopardize oral hygiene.
To overcome the shortcomings, the present invention provides a toothbrush to mitigate or obviate the aforementioned problems.
The main objective of the invention is to provide a toothbrush capable of furbishing enlarged accessible area of teeth-surfaces that is easily to clean so as to prevent bacterial nourishment.
The toothbrush in accordance with the present invention has a handle, a head assembly and a gel. The head assembly is formed at an end of the handle and has a head plate, a tuft plate and a linker member. The head plate and the tuft plate are correspondingly integrated. The tuft plate has an outer surface and multiple bristle tufts mounted on the outer surface. The linker member is formed between the tuft plate and the head plate. A gap is formed between the head plate, the tuft plate and the linker member.
The gel is mounted on the head assembly and has a cushion portion embedded in the gap of the head assembly.
On one aspect, when the toothbrush in accordance with the present invention is used to brush teeth, the combined and cooperating actuation of the tuft plate, bristle tufts and the linker member of the head assembly, as well as the cushion portion of the gel, decrease dead angles of teeth brushing and enhance teeth cleansing effect. On another aspect, the gel fills up the gap between the head plate and the tuft plate so that room that might receive impurities and scraps is eliminated, which leads to improved oral hygiene.
In addition, the tuft plate of the head assembly further has a through hole and the head plate further has a positioning tube. The through hole communicates with the gap and the positioning tube is positioned in the through hole. The cushion portion of the gel further extends between the positioning tube and the through hole and fills the positioning tube.
The gel further has a furbishing gel rod. The furbishing gel rod extends from the cushion portion and protrudes out of the outer surface of the tuft plate of the head assembly.
Furthermore, the tuft plate has multiple tuft holes formed on the outer surface for respectively receiving bristle tufts.
In addition, the head plate of the head assembly has a gel inlet. The gel inlet communicates with the gap. The gel inlet has a stepped inner surface, whereby the outer diameter of an outer end of the inlet is larger than the inner diameter of an inner end of the inlet. Furthermore, the gel forms a stepped portion within the inlet.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
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Due to the gel 20, there is no room between the head assembly 11 and the tuft plate 12, thus no scrap or food residue would be left between the head assembly 11 and the tuft plate 12, which allows the teeth cleansing task to be accomplished without nourishing bacteria and improves hygiene.
Furthermore, the ability of the tuft plate 12 to bend and drift owes to a tenacious nature of the tuft plate 12. In addition, the gel 20 between the tuft plate 12 and the head plate 11 is resilient and adapted to deform according to the motions of the tuft plate 12.
As described above, the present invention employs the tuft plate 12 of the head assembly 10, the bristle tufts 14, the linker member 13 and the cushion portion 21 of the gel 20 to cooperatively decrease dead angles and enlarge accessible area of teeth surfaces for cleansing. The gel 20 eliminates room between the head plate 11 and the tuft plate 12 that might receive scraps or food residues after tooth brushing for improved oral hygiene.
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Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
