Toothbrush using up-and-down movement pattern

Abstract

Disclosed is a toothbrush using an up-and-down movement pattern, in which two brushes are attached in series to each of inner surfaces of parallel first and second heads having an obtusely bent shape to perform up-and-down brushing. The toothbrush enables simultaneous brushing of inner and outer portions and a cusp portion of a tooth and a cheek pouch and removal of a tongue coating. The toothbrush includes the first and second heads, brushes longitudinally attached to the first and second heads, holes perforated in opposite end positions of the first and second heads, a C-shaped loop pivotally rotatably fitted into the holes of the first and second heads, an elongated U-shaped guide fixed to both ends of the first head, a transfer member connected to the elongated U-shaped guide so as to reciprocate in a longitudinal direction of the first head, and a gripper extending downward from the transfer member.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a toothbrush using an up-and-down movement pattern, and particularly to a toothbrush whose two heads are each arranged in series on each facing inner side of the first and second heads which are formed side by side at obtuse angles so as to perform an up-and-down brushing operation, thereby enabling simultaneous brushing of inner and outer portions and a cusp portion of a tooth and a region inside the cheek (hereinafter, referred to as a “cheek pouch”) and also, enabling removal of a tongue coating and brushing of the roof of the mouth.[0003]2. Description of the Related Art[0004]As one example of technologies related to toothbrushes, Korean Utility Model Laid-Open Publication No. 20-1999-0020605 (published on Jun. 15, 1999, hereinafter, referred to as “prior art 1”) discloses an invention entitled “Toothbrush having improved tooth brushing functions”.[0005]In prior art 1, the toothbrush...

AI Technical Summary

Benefits of technology

[0027]Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a toothbrush using an up-and-down movement pattern, in which two brushes are attached in series to one of corresponding facing inner surfaces of parallel first and second heads each having an obtusely bent shape so as to perform an up-and-down brushing operation, thereby enabling simultaneous brushing of inner and outer portions and a cusp portion of a tooth and a cheek pouch and also, enabling removal of a tongue coating and brushing of the roof of the mouth.

Problems solved by technology

However, brushing right upper teeth is impossible in the state in which the gripper is located below the head, and therefore, the user must invert the toothbrush such that the head is located below the gripper.

In this case, even if the user grips the gripper to orient the head upward or downward, the head cannot reach inner portions of left upper teeth and inner portions of right lower teeth, making it impossible to brush the inner portions of the left upper teeth and the inner portions of the right lower teeth.

Also, even if the user attempts to perform brushing while maximally pushing the mouth corner toward molars using the gripper, the bristles have difficulty reaching the molar located at a distal end.

The above described various brushing operations, however, may cause serious fatigue in the user's arm in the same manner as a known toothbrush in which a head is formed in a longitudinal direction of a gripper and bristles are provided at a surface of the head.

In particular, children have difficulty performing the above described brushing operations which may lead to poor brushing habits.

Although the prior art 1 and 2 achieve somewhat high teeth cleaning performance, “L”-shaped and “T”-shaped toothbrushes have no ability to conform to a set of teeth when the bristles come into contact with the teeth.

Further, since contact portions of the bristles are not configured to completely cover the respective teeth, i.e. to come into close contact with the teeth, these toothbrushes may disadvantageously limit the removal performance of inter-dental food particles or plaque.

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