Patent Publication Number: US-6334451-B1

Title: Toothbrush with filling of toothpaste

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a toothbrush with filling of toothpaste, and particularly to an improvement on a toothbrush with filling of toothpaste. 
     2. Description of Related Art 
     In this highly industrialized society, we often have chance to stay out for business or traveling and toilet set, which contains a least a toothbrush, a toothpaste, a towel, and a soap, usually is an essential part of personal belongings being carried with. However, sometimes, one or two items in the toilet set may be forgot to prepare and, for instance, the toothbrush has been prepared but the toothpaste has been carelessly forgotten. Hence, the teeth are brushed roughly or tumbled with water instead. As a result, the personal hygiene and the body health are affected unconsciously. Even more, the foul breath may result in rough manners to others unintentionally. The simply packed hygienic toothbrush in the hotel usually provides poor quality such that bristles on the toothbrush may sting the mouth or Fall off during brushing. Even if the toothbrush provided by the hotel is expensively made with better quality, it Is wasteful because usually the toothbrush in the hotel is discarded after using once. If the toothbrush is going to be used for second time or third time, the toothpaste offered by the hotel has been run out. Besides, our contemporaries pay more attention to the hygiene than before and a lot of people are used to brushing teeth more than once a day such that it is quite inconvenient to carry with the toothbrush and the toothpaste every morning while we are going out for work. Moreover, we also have had an experience with regard to the teeth being forgotten to brush or being unable to brush in time while we are going out in the morning. Therefore, an easily portable toothbrush containing the toothpaste being developed may solve the problem of the toothbrush and the toothpaste being carried separately and it is a great contribution for the daily life of everybody. 
     SUMMARY OF THE INVENTION 
     A toothbrush with filling of toothpaste according to the present invention basically comprises a cylindrical toothpaste receiver having toothpaste therein, a brush head with a guide hole therein, a turning end cap with a threaded rod and a squeezing block attached to the threaded rod. When the end cap is turned, the squeezing block may be actuated to move forward or backward such that the toothpaste may be squeezed toward the brush head to overflow over the brush bristles through the guide hole. 
     An object of the present invention is to provide a toothbrush with filling of toothpaste, which has a handle containing toothpaste to conform to the squeezing part therein. Therefore, the brush head is possible to obtain a proper amount of toothpaste while the toothpaste is pushed by the squeezing part to move spirally forward. 
     Another object of the present invention is to provide a toothbrush with filling of toothpaste, which offers an easily portable toothbrush without the need of carrying the toothpaste individually. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The major feature and the novelty of the present invention can be more fully understood by referring to the following description and accompanying drawings, in which: 
     FIG. 1 is a perspective view of a toothbrush with filling of toothpaste according to the present invention; 
     FIG. 2 is a sectional view of the toothbrush shown in FIG. 1; and 
     FIG. 3 is a cross section view of a toothpaste receiver used in the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIGS. 1,  2 , and  3 , the toothbrush with filling of toothpaste according the present invention mainly has a cylindrical toothpaste receiver  1  (i.e. the handle of toothbrush). The toothpaste receiver  1  at the front end thereof is provided with a fitting neck  12  for fitting with a toothbrush head  3 . An engaging outer ring  11  is provided on the fitting neck  12  to engage with an inner annular recession in a fitting end  31  of the toothbrush head  3  such that the toothpaste receiver  1  can fit with the toothbrush head  3 . It is noted that a plurality of projecting spots can be provided instead of the engaging ring  11 . A longitudinal guide passage  33  is provided in the toothbrush head  3  and extends from the fitting end  31  to a bristle part  32  such that the squeezed toothpaste may move to he bristle part  32  along the guide passage  33 . A protect lid  4  is used for covering the toothbrush head  3 . The rear end of the toothpaste receiver  1  is provided with an inverted hook ring  14  and a turning end cap  2  has an outer annular recession corresponding to the hook ring  14 . When the turning end cap  2  is inserted into the rear end of the toothpaste receiver, the inverted hook ring  14  engages with the outer annular recession to form a rotatably permanent engagement without being detached any more. Hence, a plurality of air apertures  13  are provided at the lower portion of the toothpaste receiver  1  right over the rearmost position of the squeezing block  5 . The air apertures  13  may discharge the air in the toothpaste receiver  1  for the toothpaste being filled into the receiver  1 , otherwise, it is hard to fill with the toothpaste completely. A threaded rod  21  is fixedly attached to the inner side of the cap  2  at the center thereof and a squeezing block  5  is movably attached to the threaded rod  21 . The squeezing block  5  has an annular groove  51  surrounding the periphery thereof to receive a resilient seal ring  6 . In order to allow the squeezing block  5  not being turned along wish the threaded rod  21 , a plurality of small longitudinal projecting ribs  15  are integrally attached to the inner wall of the toothpaste receiver  1  to increase the friction force generated. Accordingly, the turning end cap  2  is rotated lightly nay make the squeezing block  6  push the toothpaste therein toward the guide hole  33  in the toothbrush head  3 . Then, the toothpaste may move to the bristle part  32  via the guide passage  33  so as to be used while the teeth are brushed. Once the toothpaste is filled, detach the toothbrush head  3  and retreat the squeezing block  5  to the rear end of the toothpaste receiver  1  and a tube of toothpaste can be squeezed into the toothpaste receiver  1  from the front end thereof. Finally, the toothbrush head  3  is fitted to the toothpaste receiver  1  again as soon as a proper amount of toothpaste is filled and the squeezing block  5  is moved above the air apertures  13  to complete the refill job. 
     It can be understood that the present invention offers an effective combination of toothbrush and toothpaste to easily perform a function of portable self-supply. Furthermore, it is possible to obtain a proper amount of toothpaste for using and to be refilled the toothpaste. Accordingly, the present invention is durable for being conveniently used a long period of time regardless at home or out of home. 
     While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.