KR20020047654A - Refill type toothbrush - Google Patents

Abstract

PURPOSE: Provided is a tooth brush containing a handle portion and a replaceable head portion in which a hook is projected at the end of a neck portion of the replaceable head portion to couple with the handle portion of the replaceable head portion and a hook binding portion is formed at the inside of a groove to couple with the hook of the replaceable head portion. It permits easy assembling and disassembling of the head portion with the handle portion when refilling and reduction in insertion of foreign materials into the combing part. CONSTITUTION: The refill type tooth brush is capable of being assembled and disassembled by using a groove(11) of a handle part(11) and a projecting piece(31) of a neck portion(30), wherein a hook binding portion(12) is formed at the inside of the groove, and an elastic hook(33) is formed at the front end of the projecting piece to couple the groove to the projecting piece and to fasten the elastic hook to the inside of the hook binding portion. The projecting piece is a T-shaped cross section capable of going in a normal direction when the projecting piece is coupled.

Description

Refill type toothbrush {Refill type toothbrush}

The present invention relates to a refillable toothbrush, in particular a hook protruding from the refillable toothbrush consisting of a replacement head in which the neck portion including the toothbrush handle handle and the hair transplanter is replaced so as to be coupled with the toothbrush handle at the neck end of the replacement head. The coupling portion of the handle is coupled to the replacement head, and a coupling groove is formed to completely fix the hook of the replacement head after insertion, thereby easily disassembling and coupling with the handle portion of the replacement head. By providing a refillable toothbrush that can be used and maintain a perfect coupling state when using, it prevents the problem that foreign substances are inserted into the joining portion of the toothbrush due to consumer usability due to the swelling and disengagement of the coupling part of the existing refillable toothbrush. It relates to a refillable toothbrush that can be eliminated.

Conventional toothbrushes are integrated with a toothbrush rod and a toothbrush head, and the general bristles do not become effective brushing because the bristles will be opened after a certain period of time to replace the toothbrush.

In such a case, there was an unreasonable point in terms of economic feasibility because all of the toothbrush rods were discarded.

In addition, all the conventional toothbrushes are made of plastic, so there is a disadvantage in terms of environmentally friendly when discarded after use.

In order to solve such drawbacks, a replaceable toothbrush has been developed that can be used only by replacing the toothbrush head.

However, the existing replaceable toothbrushes have an advantage in economy or environmental friendliness because only the toothbrush heads are replaced and reused, but the inconvenience of detachable / attachment that may be inherent in the nature of the replaceable toothbrush products that replace only the existing head parts. When brushing teeth, there is a fatal problem that the replacement head may fall out, and toothpaste or foreign substances are caught around the head coupling part, so it is necessary to clean it frequently. do.

1 to 3 show several embodiments of conventional refillable toothbrushes.

As shown in Figure 1, in the toothbrush consisting of the handle portion 10 and the head portion 20 has a structure that is coupled in the slide state in the head portion 20, there is a disadvantage that the foreign matter is easily caught, the head in use Due to the easy removal of the part 20 has a disadvantage of hurting the gums.

As shown in FIG. 2, the groove 11 is formed inside the tip of the handle 10, and the protrusion 31 of the neck 30 is inserted therein. The bristle of the) has a problem that the user has to use while reassembling due to the advance, there is a problem that the foreign matter is caught in the gap of the toothbrush when used for a long time.

As shown in FIG. 3, the structure is coupled using the diamond-shaped hook 32 in the neck 30, foreign matters due to the opening of the diamond-shaped hook 32 is opened when brushing up and down If worn, there is a disadvantage in that the use of the retractable handle 10 is shortened.

Accordingly, the present invention has been made in view of the above, and it is possible to meet the desire for economical and environmental friendliness obtained by exchanging only the neck including the toothbrush bristles, and at the same time replacing only the reference head. Discomfort due to the nature of detachment and the deadly problem that the replacement head may fall out when brushing teeth and toothpaste or foreign substances around the head coupling portion should be frequently cleaned. It is an object of the present invention to provide a type of refillable toothbrush that can alleviate all the disadvantages of inability to remove it.

1 is a perspective view showing an embodiment of a conventional refillable toothbrush

Figure 2 is a perspective view showing another embodiment of the conventional refillable toothbrush

Figure 3 is a perspective view showing another embodiment of the conventional refillable toothbrush

4 is a perspective view of a refillable toothbrush according to the present invention;

5 is an enlarged cross-sectional perspective view of main parts of FIG. 4;

Figure 6a, 6b is a schematic cross-sectional view showing a mold structure for the hook-shaped ring coupling structure in the refillable toothbrush according to the present invention

Figure 7 is a completed perspective view of the refilled toothbrush according to the present invention

<Explanation of symbols for main parts of drawing>

10: handle portion 11: groove

12: hook binding portion 13: locking jaw

14: guide groove 20: head

30: neck 31: protrusion

32: diamond hook 33: elastic hook

34: engaging projection 35: guide projection

40: side slide pin 50: upper core pin

60: side slide core

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides a refillable toothbrush which can be engaged and disassembled by using the groove 11 of the handle part 10 and the protrusion 31 of the neck part 30, and the hook binding part 12 is formed inside the groove 11. And a resilient hook 33 is formed at the tip of the protrusion 31 so that the resilient hook 33 is fastened in the hook binding portion 12 simultaneously with the coupling of the groove 11 and the protrusion 31. It is characterized by that it was possible to.

In particular, the groove 11 and the hook binding portion 12 is formed by the cross-combination of the side slide pin and the upper core pin penetrating in the vertical direction through the body of the handle portion 10 in the horizontal direction. It is done.

In addition, the resilient hook 33 is characterized in that it is made of a pair of symmetrical opening at a predetermined angle at the same time to the incision to both sides while having each engaging projection 34.

In addition, the projection 31 of the neck 30 is characterized in that the "T" shaped cross section that can hold the positive direction when engaged.

In addition, the rear end of the protrusion 31 and the inner side of the front end of the groove 11 are each provided with a guide preventing 35 and the guide groove 14 for preventing flow, which are arranged at intervals of 90 ° along the periphery, respectively. It is characterized by.

In addition, the upper core pin through-hole formed on the body of the handle portion 10 for forming the hook binding portion 12 is characterized in that it can be closed with rubber.

This will be described in more detail as follows.

4 is a perspective view of a refillable toothbrush according to the present invention.

As shown in FIG. 4, a groove 11 having a constant depth is formed in the front end of the handle part 10 along the longitudinal direction, and occupies a predetermined area at an inner end of the groove 11. The hook engagement portion 12 is formed.

At this time, the hook binding portion 12 and the groove 11 may be divided by a wedge-shaped locking jaw 13 formed at both sides of the inlet of the hook binding portion 12.

As shown in Figure 6a, when the hook fastening portion 12 and the groove 11 is molded using a mold, the side slide pin 40 and the body that proceeds in the horizontal direction of the body of the handle portion 10 The upper core pin 50, which penetrates and runs in the vertical direction, is molded in a manner that crosses each other.

Here, as shown in FIG. 6B, a hole formed in the body of the handle portion 10 to penetrate the upper core pin may include a rubber mold, that is, a side slide core 60, inserted through the groove 11. By using the rubber finish, it is possible to maintain a clean appearance.

The neck portion 30 is provided with a protrusion 31 inserted into the groove 11, and the resilient hook 33 fastened in the hook binding groove 12 is integrally formed at the tip of the protrusion 31.

As shown in Figure 5, the resilient hook 33 at this time is in the form of a cut divided into two, each part is formed with a locking projection 34 and each cut portion at a predetermined angle When the resilient hook 33 is fastened in the hook binding groove 12 as it is opened, it is retracted by the latching jaw 13 at the inlet of the hook binding groove 12 and then reopened with a "click" sound. It can be tightened.

In addition, the projections 31 on the neck 30 and the grooves 11 on the handle portion 10 both take a "T" shaped cross section, so the user inadvertently causes the head 20 and the neck ( 30) and the handle portion 10 can be prevented from turning upside down.

In addition, four guide protrusions 35 and four guide grooves 14 are formed on the rear end circumference of the protrusion 31 and the front circumference of the groove 11 at intervals of 90 °. 30) and the fitting portion 10 is fitted to each other at the same time the completion of the coupling, it is possible to more firmly coupled state between the neck portion 30 and the handle portion 10 in use.

7 is a perspective view showing a completed coupling state of the refillable toothbrush according to the present invention, the upper core pin through hole formed on the body of the handle portion 10 for forming the hook binding portion 12. The rubber finish makes the hooks invisible so that the overall appearance of the toothbrush can be kept beautiful.

Particularly, in the present invention, the upper core pin on the mold and the slide pin on the side cross each other so that the hook-shaped ring coupling structure is provided inside the toothbrush bar, and the appearance problem is caused by using the side slide core in the rubber mold. It is characterized by the fact that the structural model of the coupling part is hidden so that it has both appearance and functional beauty and function at the same time. In addition, the toothbrush rod is hook-shaped to add a protrusion to overcome the tolerance for the injection molding. Overcoming, it will have a structure that prevents the adhesion of foreign matter on the bonding structure and the product in advance.

As described above, the present invention employs a refillable toothbrush composed of a replacement head in which a neck portion including a toothbrush handle handle and a hair transplanter is replaced, and a hook protrudes to be coupled to the toothbrush handle at the neck portion of the replacement head. The part that is coupled with the replacement head of the handle is provided with a refillable toothbrush having a coupling groove formed so that the hook of the replacement head can be completely fixed, thereby disassembling with the handle part when refilling the replacement head. And at the same time can be easily combined to maintain a perfect coupling state when using, eliminating the problem that the foreign matter due to the consumer usability and the gap caused by the gap of the coupling portion, the separation of the existing refill-type toothbrush has been inserted into the coupling portion of the toothbrush There is an advantage to it.

Claims (6)

In the refillable toothbrush which can be combined and disassembled by using the groove 11 of the handle portion 10 and the projection 31 of the neck portion 30, The hook engaging portion 12 is formed on the inner side of the groove 11, and the elastic hook 33 is formed on the tip of the protrusion 31 to be elastic at the same time as the groove 11 and the protrusion 31 are coupled to each other. Refill toothbrush, characterized in that the hook (33) can be fastened in the hook binding portion (12). The method of claim 1, wherein the groove 11 and the hook fastening portion 12 is a cross-combination of the side pin and the vertical core penetrating in the vertical direction through the body of the handle portion 10 in the horizontal direction cross-combined Refillable toothbrush, characterized in that the molded. 2. The refillable toothbrush of claim 1, wherein the resilient hook (33) has a pair of symmetrical openings at both ends while being cut at both ends with respective locking protrusions (34). 2. The toothbrush of claim 1, wherein the protrusions of the neck portion (30) have a cross section of the "T" shape that can hold it in the forward direction when engaged. The guide projections 35 and the guide grooves 14 for preventing flow, respectively, which are arranged at intervals of 90 ° along the circumference of the rear end outer side of the protrusion 31 and the inner side of the front end of the groove 11, respectively. The toothbrush for refill characterized in that it is prepared. 3. The refill of claim 1 or 2, wherein the upper core pin through hole formed on the body of the handle portion 10 for forming the hook engagement portion 12 can be finished with rubber. toothbrush.