KR101063092B1 - Electric toothbrush - Google Patents

Abstract

The present invention relates to an electric toothbrush, which utilizes the power applied to the electric toothbrush during brushing operation to allow each of the tufts to move independently in the oral cavity to double the exercise effect during brushing time.

To this end, the present invention has a toothbrush handle handle and the neck portion connected to the handle portion and the front toothbrush head portion of the neck portion, the filament bristles of the head is planted, and the power unit to enable the movement of the bristles In the powered toothbrush, the tufts are composed of two or more tufts, and each tuft is provided with an electric toothbrush having a drive unit which is driven independently by different mechanisms, so that the tufts of one tuft is not only an electric toothbrush. Compared to two additional powered toothbrushes, it is possible to exhibit superior plaque removal during the same brushing time, resulting in an effective cleaning power.

Electric Toothbrush, Independent Drive, Planter, Mechanism, Type, Size, Orientation

Description

Electric toothbrush

1 is a partially cutaway perspective view of an electric toothbrush in accordance with the present invention

Figure 2a is a detailed view showing each drive by cutting a portion of the head portion of the electric toothbrush according to the first embodiment of the present invention

Figure 2b is a detailed view showing the bottom of the toothbrush head of Figure 2a

Figure 3a is a detailed view of each drive unit of the electric toothbrush according to the second embodiment of the present invention

3B and 3C are reference diagrams for explaining operating states of the third and fourth hair controllers of FIG. 3A, respectively.

Figure 4a is a detailed view of each drive unit of the electric toothbrush according to the third embodiment of the present invention

Figure 4b is a detailed view of the guide plate fixed inside the toothbrush head of Figure 4a

<Explanation of symbols for the main parts of the drawings>

1 knob 2 neck portion

3: toothbrush head 3b: guide rail

3c: gear moving rail 4,9,10,15-18

6 power unit 7 power transmission shaft

7a-7d: eccentric shaft 8: operation switch

9a, 10a, 15a-18a: drive unit 10b: guide                 

10c: gear 17b, 18b: support shaft

17c, 18c: Stopper 19a, 19b: Direction change gear

20: direction guide plate 20a, 20b: guide groove

The present invention relates to an electric toothbrush having two or more independently driven bristles, and more particularly, to an electric toothbrush provided with two or more tufts moving differently so as to obtain an excellent cleaning effect when brushing teeth. will be.

Recently, many researches have been made for effective plaque removal of teeth, and as a result, various types of electric toothbrushes have been developed.

In general, the conventional electric toothbrush is used for cleaning the teeth and gums plaque and personal hygiene to remove food residues, toothbrush handle that the user grasps when brushing, the neck portion connected to the handle portion, and the toothbrush head connected to the neck end The head, the hair part to which bristles are planted among the head part, and the power unit which enable the rotational motion of a hair part are provided.

The advantages of using the conventional electric toothbrush of such a configuration are as well known, and the specific operation is to move the planting part using the power unit, the movement of the toothbrush itself by the user and the movement of the planting part by the power unit. It is designed to remove the plaque of the tooth more effectively than the general toothbrush.

In particular, the configuration and design of the head portion of the electric toothbrush has a direct relationship with the cleaning power has become a subject of technological innovation, the head portion of the electric toothbrush has been steadily developed in various forms for a long time.

In recent years, various types of bristles of the head portion is introduced, and some known public technologies include Korean Patent Registration No. 10-0127992, Patent Registration No. 10-0236404, and Patent Registration No. 10-0304175 , Patent Registration No. 10-0333137.

However, investigations of conventionally viable techniques including these techniques have shown that the toothbrush head portion which cleans the teeth more effectively is a very complicated structure and most of the techniques that are not commercially feasible.

Therefore, the present invention has been made in order to overcome the problems of the prior art, the present invention is provided with two or more planting portion in the hair transplantation portion of the electric toothbrush and to maximize the force applied to the electric toothbrush during brushing operation By allowing the hairs to be driven independently in the oral cavity, the effect of exercise during brushing time is doubled, resulting in superior plaque removal ability during the same brushing time as compared to the powered toothbrush with one hair and two hairbrushes. It is an object of the present invention to provide an electric toothbrush that can exert an effective cleaning power as a result.

In order to achieve the above object, the present invention provides a toothbrush head handle and the neck portion connected to the handle portion to be held by the user when brushing, and the toothbrush head portion having a bristles for the bristles are located in the tip of the neck portion to plant the bristles; In the electric toothbrush having a power device for enabling, the toothbrush head portion has two bristles for bristle are divided into each of the bristles, and each of the bristles to drive independently driven by different mechanisms Provide an electric toothbrush.

In the first embodiment of the electric toothbrush according to the present invention, the driving units are configured to have different kinds of mechanisms applied to each of the planting units, and preferably, the driving unit provided in the one planting unit is the power unit. It is configured to operate by the power transmitted from the device, and the driving unit provided on the other one of the planting portion to operate by the force caused by the user's brushing action.

 According to a second embodiment of the electric toothbrush according to the present invention, each driving unit is configured by different sizes of mechanisms applied to each of the planting units, and preferably, the driving unit provided in the one planting unit is the power unit. The driving part provided by the first driving force transmitted from the apparatus and provided to the other one hair transplanting part is configured to operate by the second power transmitted from the power unit to a size different from the first driving force.

In a third embodiment of the electric toothbrush according to the present invention, the driving units are configured such that the mechanisms acting on the respective planting units are different from each other. Preferably, the driving unit provided in the one planting unit is the power unit. A second unit which is operated by the power in the first direction transmitted from the apparatus, and the drive unit provided in the other one bristle part is transmitted from the power unit in a direction different from the first direction (more preferably in the vertical direction); It is configured to operate by the power of the direction.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

Hereinafter, the electric toothbrush described with reference to the accompanying drawings will be described as an example in which two planting portions are provided to help an understanding of the configuration and operation of the present invention. It is only used for the purpose of explaining the electric toothbrush by an example in detail, It does not limit the technical idea of this invention.

1 is a perspective view of a powered toothbrush according to the present invention, illustrating a powered toothbrush provided with two tufts.

As shown in FIG. 1, the electric toothbrush according to the present invention includes a toothbrush handle portion 1, which is held by a user when brushing teeth, a neck portion 2 connected to the handle portion, and a toothbrush head portion provided at the tip of the neck portion. (3) and two bristles 4 of which the bristles 5 of the toothbrush heads are divided into two regions, respectively, and a power unit for allowing movement of the tufts of rotation or up and down, right and left reciprocation, and the like. 6, a power transmission shaft 7, and an operation switch 8 for operating the power unit. Under the two tufts, a driving unit 9a, 10a, 15a-18a (see FIGS. 2A to 4B) moving independently by different mechanisms is provided, and each of the driving units is the toothbrush head unit 3. It is seated in the interior.                     

The electric toothbrush according to the present invention may have a number of embodiments, the first embodiment of which is different from each other by different types of mechanisms acting on each of the hair transplanting unit as shown in Figures 2a and 2b The driving unit is configured, and preferably, the driving unit provided in the one planting unit is operated by the power transmitted from the power unit, and the driving unit provided in the other planting unit is applied to the force caused by the brushing operation of the user. Is configured to work by

In the second embodiment of the electric toothbrush according to the present invention, as shown in Figures 3a to 3c, the size of the mechanism acting on each of the hair transplanting unit is different from each other is configured each drive unit, preferably The driving unit provided in one planting unit is operated by a first power transmitted from the power unit, and the driving unit provided in the other planting unit is a second unit transmitted from the power unit in a different size from the first power unit. It is configured to operate by power.

In the third embodiment of the electric toothbrush according to the present invention, as shown in FIGS. 4A and 4B, the driving mechanisms are configured to be different from each other in the direction of the mechanism applied to each of the hair transplanting units. The drive unit provided in the four planting portions is operated by the power in the first direction transmitted from the power unit, and the drive portion provided in the other planting portion is different from the first direction (more preferably in the vertical direction). And to operate by power in a second direction transmitted from the power unit.

Referring to Figures 2a and 2b will be described the configuration of the drive unit according to the first embodiment of the present invention and the resulting effects.

Figure 2a is a detailed view showing each of the driving portion by cutting a portion of the head of the electric toothbrush according to the first embodiment of the present invention, Figure 2b is a detailed view showing the bottom surface of the toothbrush head of Figure 2a.

As shown in FIG. 2A, the tuft part 4 of FIG. 1 is divided into a first tuft part 9 and a second tuft part 10, and below each tuft part 9 and 10. The driving units 9a and 10a which are driven independently by different kinds of mechanisms are provided. Here, the diameter of the second hair transplanter 10 is such that the diameter of the first hair transplanter 9 is not greater than that of the first hair transplanter 9 so that cleaning of the posterior part may occur smoothly.

The first driving part 9a provided in the first feeding part 9 has an eccentric shaft 7a extending from the power transmission shaft 7 and a body below the first feeding part directly connected to the eccentric shaft. It is configured to be able to move directly by the power transmitted through the power transmission shaft (7) from the power unit (6). As a result, the first driving unit 9a repeats the anti-rotational movement of moving the first hair control unit 9 clockwise and counterclockwise by the power transmitted from the power unit 6 as indicated by the arrow in FIG. 2A. You can do it.

The second driving unit 10a provided in the second hair transplanter 10 includes a gear 10c formed at a lower end of the lower body of the second hair transplanter 10 and an outer circumferential surface of the body of the second hair transplanter 10. A guide 10b formed along the second guide portion 10 and the second bristle part 10 at a guide corresponding position within the toothbrush head 3 so that the second hair part 10 can reciprocate linearly in the body of the toothbrush head 3. Guide moving rails (3b) formed in the space, and the second bristle portion (10) in the gear corresponding position in the toothbrush head portion 3 so as to rotate in the body of the toothbrush head (3) It is composed of a gear moving rail (3c) formed in a size corresponding to the gear. In this case, as shown in Figure 2b, the gear moving rail (3c), it is preferable to have a space of sufficient size so that the gear (10c) formed in the lower portion of the body of the second formula 10 (10) to rotate. . Thus, the second driving unit 10a is the guide 10b and the gear 10c of the second hair transplanter 10 by the force applied by the user to the toothbrush head 3 when brushing the toothbrush head 3. Along the guide movement rail 3b and the gear movement rail 3c, the linear reciprocating motion in the front / rear direction of the head as well as the rotational movement in the clockwise and counterclockwise directions as indicated by the arrows in FIG. Make it happen.

Therefore, according to the electric toothbrush according to the first embodiment of the present invention, the first hair transplanter 9 repeats the left and right half-rotation movements when the power is transmitted by the power unit, and the second hair transplanter 10 is the user. When the toothbrush is moved to the toothbrush head (3) in the movement of the tooth by repeating the rotational movement and linear reciprocating movement to the depths of the mouth can be easily cleaned, such as the electric toothbrush of the present invention left and right by the power transmission unit The first hair transplanter having a half-rotation motion can clean the anterior and side incisors, and at the same time, the second hair transplanter can smoothly clean the posterior teeth and improve cleaning power. For reference, in the conventional electric toothbrush, it consists of a hair part which performs one left and right rotational motion, and the size of the hair part is too large for a perfect cleaning to the inside of the posterior part. There was an irrationality that the cleaning time was not performed smoothly and the brushing time was long.

Referring to Figures 3a to 3c the configuration of the driving unit according to the second embodiment of the present invention and the resulting effects are as follows.

Figure 3a is a detailed view of each drive unit of the electric toothbrush according to the second embodiment of the present invention, Figures 3b and 3c are reference diagrams for explaining the operating state of the third and fourth hair portion of Figure 3a, respectively.

As shown in FIG. 3A, the tuft part 4 of FIG. 1 is divided into a third tuft part 15 and a fourth tuft part 16, and below each tuft part 15 and 16. The third driving part 15a and the fourth driving part 16a which are driven independently by mechanisms of different sizes are provided.

The third driving part 15a provided in the third hair-receiving part 15 has a first eccentric shaft 7b eccentrically extending from the power transmission shaft 7 by a predetermined length A and extending therefrom, and the first eccentricity. It is composed of a body below the third hair-type portion directly connected to the shaft, it is configured to be able to move directly by the first power transmitted through the power transmission shaft (7) and the first eccentric shaft (7b).

The fourth driving part 16a provided in the fourth feeding part 16 is eccentric from the power transmission shaft 7 by a length B different from the length of the first eccentric shaft 7b and formed therefrom. The second eccentric shaft (7c), and the body of the fourth lower portion of the lower body connected directly to the second eccentric shaft, and the second dong transmitted through the power transmission shaft (7) and the second eccentric shaft (7c) It is configured to move directly by force.

As a result, as shown in FIGS. 3B and 3C, the third driving unit 15a and the fourth driving unit 16a transmit power of a predetermined size through the power transmission shaft 7 from one power unit 6. In this case, each of the hair transplanting units (third and fourth parent units) can be rotated counterclockwise or counterclockwise by using different magnitudes of power (first and second powers), respectively. .

3A to 3C, the powered toothbrush according to the second embodiment of the present invention is driven by two tufts 15 and 16 receiving power from the same power unit 6 and power transmission shaft 7. However, by varying the length of the eccentric shaft (A, B) during power transmission, by generating a difference in the amount of power transmitted, the third driving portion and the fourth driving portion are applied with different sizes of power, respectively, It is possible to control the hair rotation speed differently. For this reason, it is possible to remove the plaque attached to the dentin teeth and the plaque attached to the skin tissue gingival at the same time by increasing the rotation speed of the two hair tips to improve the cleaning effect. I can give it.

Referring to Figures 4a and 4b it will be described the configuration of the drive unit according to the third embodiment of the present invention and the resulting effects.

Figure 4a is a detailed view of each drive unit of the electric toothbrush according to the third embodiment of the present invention, Figure 4b is a detailed view of the guide plate fixed to the interior of the toothbrush head.

As shown in FIG. 4A, the hair part 4 of FIG. 1 is divided into a fifth hair part 17 and a sixth hair part 18, and below each of the hair parts 17 and 18. The fifth driving unit 17a and the sixth driving unit 18a which are driven independently by mechanisms in different directions are provided. In addition, support shafts 17b and 18b are formed at the lower part of the body of each of the hair transplanters 17 and 18, and stoppers 17c and 18c are fastened to the lower ends of the support shafts. In addition, in the lower space of each of the driving units 17a and 18a, the moving direction of each tufting unit is set to a specific direction (in the present invention, the case in which the toothbrush is set in the longitudinal direction and the direction perpendicular thereto) will be described as an example, but is not limited thereto. Directional guide plates 20 are formed to form guide grooves 20a and 20b for designating the plurality of guide grooves, and the two guide grooves 20a and 20b respectively support the fifth driving part 17a and the sixth driving part 18a. After the shafts 17b and 18b are inserted, the end stoppers 17c and 18c are configured so as not to be separated from the guide grooves, and the direction guide plate is firmly fixed to the side of the body of the toothbrush head 3 (in the drawing). Description thereof may be omitted) or may be integrally formed.

The fifth driving unit 17a provided in the fifth feeding unit 17 is the first direction transmitted through the shaft 7a eccentric from the power transmission shaft 7 (direction perpendicular to the longitudinal direction of the toothbrush: The sixth driving part 18a, which is operated by the power of FIG. 4B and is provided on the sixth bristle part 18, is attached to two end gears 19a and 19b attached to the end of the power transmission shaft 7. And another eccentric shaft 7d is redirected in a direction different from the power in the first direction to the power in the second direction (the longitudinal direction of the toothbrush: see FIG. 4b) transmitted from the power unit 6. Configured to operate by

4A and 4B, in the electric toothbrush according to the third embodiment of the present invention, the two tufts 17 and 18 perform movement by receiving power from the same power transmission device, but the movement direction is fifth. The tuft part 17 reciprocates in the vertical direction with respect to the longitudinal direction of the toothbrush bar, and the sixth tuft part 18 is configured to reciprocate in the horizontal direction with respect to the longitudinal direction of the toothbrush bar. At the same time, interdental plaque removal is significantly improved.

The present invention has been described by way of example of selected powered toothbrushes and variations and modifications thereof may result from the understanding and reading of this specification, and all such modifications and variations so far are included within the scope of the appended claims.

Using the electric toothbrush made in accordance with the present invention and a conventional electric toothbrush, a comparative evaluation experiment on the plaque removal effect and a consumer evaluation on usability were performed.

&Lt; Examples and Comparative Examples &

An electric toothbrush according to the first embodiment of the present invention was manufactured as an experimental toothbrush, and an electric toothbrush composed of one conventional rotating part was used as Comparative Example 1, and a conventional general toothbrush other than the electric toothbrush was used as Comparative Example 2. As described below, a comparative evaluation experiment (Experimental Example 1) and a preference evaluation experiment (Experimental Example 2) on the usability of the plaques were performed.

Experimental Example 1 Comparative Evaluation Experiment for Plaque Removal Effect

When toothbrushing was performed using the toothbrushes prepared in Examples and Comparative Examples, the plaque reduction effect was compared and evaluated in the following manner.

Thirty clinical subjects were selected and 10 persons each were used in the Examples, Comparative Examples 1 and 2, for a period of time (30 days), and then after 14 days and 30 days after the 0th day. The Plaque Index was measured and the reduction rate (%) is shown in Table 1.

division % Decrease in plaque Example Comparative Example 1 Comparative Example 2 After 14 days of use 5.2 ± 0.3 3.9 ± 0.2 1.6 ± 0.3 After 30 days 9.8 ± 0.2 5.6 ± 0.3 3.4 ± 0.2

As shown in Table 1, in the toothbrushes of Comparative Examples 1 and 2, the reduction ratio of the plague index of the tooth surface after 30 days of use was 5.6% and 3.4%, compared with the conventional electric toothbrush compared to the conventional manual toothbrush, Comparative Example 2. Although Example 1 was found to be somewhat superior, it was found that the electric toothbrush prepared in the embodiment of the present invention has a better plaque removal effect at a value of 9.8%.

<Experimental Example 2: Experiment for Evaluating Preference of Usability>

The toothbrush prepared in Example and Comparative Example 1 was used to evaluate the usability of the toothbrush by the following evaluation method.

The results of measuring the average value using the five-point comparison method for the usability through the comparison panel test after using the above example and Comparative Example 1 electric toothbrush for a certain period (30 days) for a panel list of 30 people Is shown in Table 2 below.

division Example Comparative Example 1 Tooth plaque reduction effect 4.0 3.5 Molar plaque reduction 3.9 3.5 Cleaning feeling after brushing 4.1 3.3 Overall satisfaction 3.9 3.4

(5 points are very good, 4 points are good, 3 points are normal, 2 points are bad, and 1 point is very poor)

As shown in the results of Table 2, compared to Comparative Example 1 in the case of Example, it was found to be much superior in terms of plaque reduction effect, cleaning feeling after brushing, and overall satisfaction.

The electric toothbrush according to the present invention showed not only the reduction of the plaque removal rate was higher than that of the conventional electric toothbrush and the non-powered toothbrush, but also the toothbrush plaque reduction effect and the molar plaque reduction. It was also found that it was superior to the conventional electric toothbrush in surveying consumer preferences such as effect and overall satisfaction.

Therefore, the novel electric toothbrush described in the present invention has been developed to produce better results in terms of effects and commercial feasibility compared with existing designs.

Claims (8)

In the electric toothbrush having a toothbrush head (3) having a bristles in which the bristles are planted with a bristles located at the tip of the toothbrush stand and a power unit that enables movement of the bristles, The tuft part is provided with a plurality, each of the tuft part is an electric toothbrush, characterized in that to rotate independently from each other about an axis perpendicular to the longitudinal direction of the toothbrush. According to claim 1, wherein the planting portion A first type mother part 9 operated by the power unit, Electric toothbrush, characterized in that consisting of the second hair portion 10 that is operated by the force caused by the brushing motion of the user. 3. The method of claim 2, Gear 10c is formed at the lower end of the second hair transplanter 10, Electric toothbrush, characterized in that the gear moving rail (3c) is formed inside the toothbrush head portion (3) is engaged with the gear (10c) so that the second hair-forming part to rotate while rotating linearly. The method of claim 3, A guide 10b is formed on the outer circumference of the body of the second tuft portion 10, Electric toothbrush, characterized in that the guide movement rail (3b) for guiding and moving the guide (10b) is formed inside the toothbrush head (3). The method of claim 1, wherein the planting portion, A third type mother part 15 that is operated by the first power transmitted from the power unit, The electric toothbrush, which is transmitted from the power unit, and is made of a fourth type of mother part (16) that is operated by a second power of a different size from the first power. The method of claim 5, Further comprising a power transmission shaft (7) for transmitting power from the power unit to the tufts, The third bristle part 15 is rotationally driven by a first eccentric shaft 7b extending eccentrically from the power transmission shaft 7 by a predetermined length A, The fourth hair clip 16 is rotated by the second eccentric shaft (7c) extending eccentrically from the power transmission shaft (7) by a predetermined length (B), Power toothbrush, characterized in that the length (A) and the length (B) is different from each other in length. The method of claim 5, Further comprising a power transmission shaft (7) for transmitting power from the power unit to the tufts, Either of the hair transplanting portion is a powered toothbrush, characterized in that the rotation drive by the directional gears (19a, 19b) attached to the end of the power transmission shaft (7). delete

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