Functional toothbrush stick and method for manufacturing same

Abstract

A functional toothbrush shaft and a method of manufacturing the same are proposed. The functional toothbrush shaft includes: a toothbrush body including a handle, a bristle head support neck, and a bristle head; and at least one finger support protrusion that forms a stable resultant force by forming at least three support points on the handle of the toothbrush body, prevents slipping of a user's fingers to increase friction, and allows free gripping throughout 360° at any point of a cylindrical surface of the toothbrush body.

1 . A functional toothbrush shaft, comprising:
 a toothbrush body including a handle, a bristle head support neck, and a bristle head; and   at least one finger support protrusion that forms a stable resultant force by forming at least three support points on the handle of the toothbrush body, prevents slipping of a user's fingers to increase friction, and allows free gripping throughout 360° at any point of a cylindrical surface of the toothbrush body.   
     
     
         2 . The functional toothbrush shaft of  claim 1 , wherein the finger support protrusion comprises:
 a first finger support protrusion protruding from an outer circumferential surface of the handle, and determining upper positions of a user's thumb and a user's index finger;   a second finger support protrusion protruding determining lower positions of the user's thumb and the user's index finger; and   a third finger support protrusion determining a position of a user's middle finger,   wherein first and second support grooves allowing the user's fingers to be seated therein are provided between the first, second, and third finger support protrusions.   
     
     
         3 . The functional toothbrush shaft of  claim 1 , further comprising:
 a rear round grip provided at a rear end of the handle, and allowing a user's ring finger, and a user's little finger, and a user's palm to be placed and supported thereon.   
     
     
         4 . The functional toothbrush shaft of  claim 2 , further comprising:
 a shoulder grip provided between a front end of the first finger support protrusion and the bristle head support neck, and allowing the user's thumb and the user's index finger to be placed thereon and prevented from slipping.   
     
     
         5 . The functional toothbrush shaft of  claim 1 , wherein a center of gravity of the toothbrush body is placed at a rear end of the handle so that even if a toothbrush is dropped on a floor, the handle is first brought into contact with the floor; and
 the finger support protrusions form a predetermined angle with respect to bristles and the bristle head support neck is formed inclinedly so that the bristles of the bristle head are prevented from contact with the floor and thus prevented from contamination due to a contact surface.   
     
     
         6 . The functional toothbrush shaft of  claim 1 , wherein the handle and the finger support protrusion protruding outward from the handle are formed in a circular shape to facilitate rotation. 
     
     
         7 . The functional toothbrush shaft of  claim 1 , wherein the toothbrush body further comprises a month indicator on which each month from January to December is marked as numbers or twelve colors are displayed, so that the toothbrush shaft is replaced every month and used in a state in which dental plaque removing efficiency of bristles is high, thereby providing a psychological and educational effect to increase oral hygiene awareness. 
     
     
         8 . The functional toothbrush shaft of  claim 1 , wherein the bristle head is one selected from a daily brush head, an advanced brush head, an interdental brush head, and an infant brush head. 
     
     
         9 . A method of manufacturing a functional toothbrush shaft of  claim 1 , the method being capable of maximizing personalized motion suitability in accordance with an anatomical structure of a hand of a user and further increasing personalized anatomical suitability by three-dimensional (3D) scanning and printing in manufacturing the functional toothbrush shaft, the method comprising:
 inputting anatomical structure data of the hand of the user including a person with disability, into a computer;   generating toothbrush shaft design data conforming to the anatomical structure of the hand of the user including the person with disability;   transmitting, by the computer, three-dimensional (3D) data to a three-dimensional (3D) printer; and   producing, by the 3D printer, a three-dimensional toothbrush shaft on the basis of on the 3D data, thereby manufacturing a personalized toothbrush shaft.   
     
     
         10 . The functional toothbrush shaft of  claim 2 , further comprising:
 a rear round grip provided at a rear end of the handle, and allowing a user's ring finger, and a user's little finger, and a user's palm to be placed and supported thereon.