WO2023101050A1

WO2023101050A1 - Toothbrush

Info

Publication number: WO2023101050A1
Application number: PCT/KR2021/018049
Authority: WO
Inventors: 윤한철
Original assignee: 코리아삼바우메디컬 주식회사
Priority date: 2021-11-30
Filing date: 2021-12-01
Publication date: 2023-06-08
Also published as: KR20230081471A

Abstract

A toothbrush is provided. A toothbrush comprises a toothbrush head and a grip portion, wherein the toothbrush head comprises: a central brush rod; and a plurality of rotating brush rods which are rotated according to the operation of a toothbrush head adjustor provided on the grip portion to change intervals between toothbrush bristles. The toothbrush head adjustor comprises a brush rod fixing portion and a movable handle formed on the brush rod fixing portion, and the brush rod fixing portion comprises a plurality of brush rod through-holes which are formed so as to pass the central brush rod and the plurality of rotating brush rods therethrough. A plurality of grip contact portions formed to come into contact with the grip portion can be formed on both side surfaces of the brush rod fixing portion.

Description

toothbrush

The present invention relates to a toothbrush, specifically, a toothbrush that includes a plurality of brush heads, and can rotate at least a portion of the plurality of brush heads, so that the interval between bristles can be changed as desired during brushing.

Toothbrushes are used for oral hygiene and removal of bad breath, and tooth decay prevention effects can be expected by brushing teeth and gums using a toothbrush. In order to achieve such an effect, it is necessary to be able to sufficiently wash the bacterial film on the surface of teeth, including molars and wisdom teeth, as well as brushing to the interdental space corresponding to the teeth. In addition, the angle of the teeth formed as the teeth grow, the texture of the teeth, and the angle between the teeth are formed differently for each person.

In order to increase the effectiveness of brushing, various attempts have been made, such as changing the placement of the bristles or forming curves in the brushes that touch the teeth, but these attempts are not the same as brushing the wide surface of the teeth and narrow spaces such as the interdental spaces. There was a limit to providing the shape of the bristles optimized for various situations, such as when brushing between gaps or when brushing to clean the tongue. In addition, it was not possible to provide a personalized type of toothbrush structure for users having different oral structures.

The technical problem to be solved by the present invention is to provide a toothbrush capable of changing the spacing of the bristles as desired during brushing so that effective brushing is performed for various shapes in the oral cavity such as the tooth surface, interdental area, and tongue with only one toothbrush. is to do

In addition, the technical problem to be solved by the present invention is to provide a toothbrush that can be personalized and used for users having different oral structures while mass production is possible.

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A toothbrush according to an embodiment of the present invention is a toothbrush including a toothbrush head and a handle, wherein the toothbrush head rotates according to the operation of a central brush and a toothbrush head control unit provided on the handle to change the distance between bristles. Includes a rotating sole, wherein the toothbrush head control unit includes a sole fixing part and a moving handle formed on the sole fixing part, and the sole fixing part includes a plurality of the central sole and the plurality of rotating soles formed to pass through the sole. It includes a soldae through hole, and a plurality of handle contact portions formed to contact the handle portion may be formed on both side surfaces of the soldae fixing portion.

In one embodiment of the present invention, each of the plurality of handle contact portions includes a contact protrusion formed on an outer surface thereof, and the contact protrusion is accommodated on an inner surface of the handle portion so that the handle fixing portion is engaged and fixed to the handle portion. A contact protrusion accommodating portion may be formed.

In one embodiment of the present invention, the plurality of rotating soles each include a plurality of rotation guidance parts, and two immediately adjacent rotation guidance parts among the plurality of rotation guidance parts are formed in three-dimensional structures different from each other, and the plurality of soldae passage holes The inner surface may be formed in a three-dimensional structure that guides the rotating soldae to rotate in contact with the plurality of rotation guide units.

In one embodiment of the present invention, each of the plurality of rotating soles includes a plurality of handle engaging parts, respectively, and the handle part may include a plurality of sole pressing parts for pressing and fixing the plurality of handle engaging parts.

In one embodiment of the present invention, the handle portion is formed by a hook combination of an upper portion of the handle and a lower portion of the handle, and the toothbrush may further include a ring portion and a cap portion formed to be fitted to one end of the handle portion in the hooked state. there is.

In one embodiment of the present invention, the toothbrush may further include a plurality of drainage holes formed on the bottom and rear surfaces of the handle portion to discharge moisture inside the toothbrush to the outside.

In one embodiment of the present invention, the lower portion of the soldae fixing portion may be opened by the plurality of soldae through-holes.

In one embodiment of the present invention, a coupling ring may be formed between the moving handle and the sole fixing part.

In one embodiment of the present invention, the center sole and the plurality of rotating soles, and the center sole and the sole of the plurality of rotating soles may be integrally injection molded.

In one embodiment of the present invention, the plurality of rotating soles each have a plurality of sole fitting protrusions, the center sole has a plurality of sole fitting protrusions accommodating portions for accommodating the plurality of sole fitting protrusions, and the plurality of sole fitting protrusions. Cross-sections of the solder fitting protrusion accommodating portion, in which the solder fitting protrusions of two immediately adjacent rotating soles are accommodated, among the solder fitting protrusion accommodating portions may be formed in different shapes.

In one embodiment of the present invention, the cross section of the solder fitting protrusion accommodating part for receiving the sole fitting protrusion of the rotating sole immediately adjacent to the center sole of the two immediately adjacent rotating soles is formed in a circular shape, and the two immediately adjacent rotating soles A cross-section of the sole fitting protrusion accommodating portion for accommodating the sole fitting protrusion of the rotating sole that is not immediately adjacent to the central sole may be formed in an elliptical shape.

A toothbrush according to another embodiment of the present invention is a toothbrush including a toothbrush head and a handle, wherein the toothbrush head rotates according to the operation of a central brush and a toothbrush head control unit provided on the handle to change the distance between bristles. Includes a rotating sole, wherein the toothbrush head control unit includes a central pillar and a plurality of push buttons disposed at both ends of the central pillar, and the plurality of rotating soles can be rotated according to the movement of the central pillar. .

In one embodiment of the present invention, the central pillar portion may include a tooth formed on both sides of the gear formed on one of the plurality of rotating soles and teeth formed to rotate the gear formed on the other one of the plurality of rotating soles. .

In one embodiment of the present invention, the handle portion is formed by hook coupling of an upper portion of the handle and a lower portion of the handle, and the toothbrush may further include a ring portion and a cap portion formed to be fitted to one end of the handle portion in the hook-coupled state. there is.

A toothbrush according to another embodiment of the present invention is a toothbrush including a toothbrush head and a handle, wherein the toothbrush head rotates according to the operation of a central sole and a toothbrush head control unit provided on the handle to change the spacing between bristles. It includes a plurality of rotating soles, and the toothbrush head control unit may include a rotator that rotates and rotates the plurality of rotating soles.

In one embodiment of the present invention, the rotator may include a central gear formed to rotate a gear formed on one of the plurality of rotating soles.

In one embodiment of the present invention, the rotator may further include a central auxiliary gear formed to rotate a gear formed on another one of the plurality of rotating soles in cooperation with the central gear.

Details of other embodiments are included in the detailed description and drawings.

According to the embodiments of the present invention, the spacing of the bristles can be changed as desired during brushing so that effective brushing is performed on various shapes in the oral cavity, such as the tooth surface, interdental area, and tongue, with only one toothbrush, so that the wide surface of the teeth Oral hygiene and bad breath are achieved by optimizing brushing for various situations, such as when brushing for teeth, when brushing between narrow gaps such as between teeth, or when brushing to clean the tongue. Removal and tooth decay prevention effect can be maximized. In addition, according to the embodiments of the present invention, while providing a toothbrush structure of a personalized type for users having different oral structures with only one toothbrush, it is manufactured to enable mass production, and a user-customized toothbrush at a relatively low manufacturing cost effect can be obtained.

In particular, by improving the fact that general type toothbrushes could only brush the dentin exposed from the teeth or the center of the tooth surface, it is possible to brush to the depth of the germ bag or the back of the molar (End-Tuft), and even massage the gums. It also helps with blood circulation, so you can get excellent oral health care effects. Furthermore, it is possible to prevent periodontitis, cervical abrasion, and tooth decay that may occur due to brushing at the wrong angle, and it is also helpful for elderly patients or orthodontic patients with deformation of the oral structure as it is possible to adjust the angle precisely. there is.

1 to 3 are views for explaining a toothbrush according to an embodiment of the present invention.

4 to 7 are views for explaining a slide-type toothbrush according to an embodiment of the present invention.

8 and 9 are views for explaining a toothbrush according to an embodiment of the present invention.

10 and 11 are diagrams illustrating an operation of adjusting the spacing between bristles of a toothbrush according to an embodiment of the present invention.

12 is a view for explaining a toothbrush according to an embodiment of the present invention.

13 to 15 are views for explaining a toothbrush according to an embodiment of the present invention.

16 and 17 are views for explaining a push-type toothbrush according to an embodiment of the present invention.

18 and 19 are views for explaining a rotation type toothbrush according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification and claims, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

1 to 3, a toothbrush 1 according to an embodiment of the present invention may include a toothbrush head 10 and a handle portion 20.

The toothbrush head 10 is a part where brushing occurs in the user's oral cavity, and bristles (or brushes) are planted therein. As shown, the toothbrush head 10 includes a plurality of soles, and a brush is planted for each sole. On the other hand, the handle part 20 is a part that the user holds to hold the toothbrush 1, and the toothbrush head control part 30 is provided in the handle part 20. The user can change the spacing of the bristles as desired by manipulating the head control unit 30 during brushing.

Specifically, the toothbrush head 10 may include one center sole 105 and a plurality of

rotating soles

101 , 103 , 107 , and 109 . A plurality of rotating soldae (101, 103, 107, 109) may be arranged side by side with the central soldae (105) around the central soldae (105). In this embodiment, two rotating

soles

101 and 103 are disposed on one side of the center solde 105, and two other rotating

soldes

107 and 109 are disposed on the other side of the center solde 105. , The number of rotating soles may be set differently depending on the embodiment.

The plurality of

rotating soles

101 , 103 , 107 , and 109 may rotate according to the operation of the toothbrush head control unit 30 to change the spacing of the bristles. Specifically, the plurality of

rotating soles

101, 103, 107, and 109 are rotated so that the soles installed in each are directed toward the sole of the center sole 105, or, conversely, the soles installed in each are rotated away from the center sole 105. can be rotated In this way, by adopting a brush head 10 rotatable by an angle desired by the user, the function of adjusting the spacing of the bristles may be implemented. In this regard, details of the configuration and operation of the plurality of

rotating soles

101 , 103 , 107 , and 109 and the head control unit 30 will be described later with reference to FIGS. 4 to 7 .

In some embodiments of the present invention, the brush placed on the sole may be made of synthetic fiber material, polybutyl terephthalate (PBT) material, silicon material, etc., including nylon, and the thickness of the brush is suitable for specific purposes. can be formed In addition, the sole may be formed of hard hair or soft hair. Meanwhile, in some embodiments of the present invention, the brush may be charcoal nano-treated or silver nano-treated.

In some embodiments of the present invention, when the materials of the sole and the sole are different from each other, the sole and the sole may be individually formed and assembled. Alternatively, in some other embodiments of the present invention, when the sole and the sole are made of the same material, the sole and the sole may be integrally formed. For example, when using a silicone material, the sole and the sole may be integrally injection molded.

Meanwhile, in some embodiments of the present invention, brushes placed on at least some of the

soles

101, 103, 105, 107, and 109 and brushes placed on other parts of the soles may be formed of different materials. . For example, brushes placed on the

soles

101 and 109 disposed on the outside are formed of silicone brushes for removing tartar, and brushes placed on the

soles

103, 105, and 109 disposed on the inside are used for general purposes. It may be formed as a brush of nylon material.

Alternatively, in some embodiments of the present invention, brushes placed on at least some of the

soles

101, 103, 105, 107, and 109 and brushes placed on other parts of the

soles

101, 103, 105, 107, and 109 may have different stiffnesses. there is. For example, the brushes placed on the

soles

101 and 109 disposed on the outside are formed to be thicker than the brushes placed on the

soles

103, 105, and 109 disposed on the inside, or the soles disposed on the outside ( The

brushes

101 and 109 are formed of hard bristle brushes, and the brushes placed on the

soles

103 , 105 and 109 disposed inside may be formed of soft bristle brushes.

Meanwhile, referring to FIGS. 1 and 3 , a drainage hole 201 may be formed at the bottom of the handle part 20 and a drain hole 203 may be formed on the rear surface of the handle part 20 . That is, the toothbrush 1 according to the present embodiment may include a plurality of

drainage holes

201 and 203 formed on the lower and rear surfaces of the handle portion 20 to discharge moisture inside the toothbrush to the outside. As will be described in detail below, components for realizing the function of adjusting the spacing of the bristles are disposed inside the handle part 20 according to the embodiments of the present invention. Therefore, unlike a general toothbrush formed so that there is no space inside, an empty space is formed inside the handle portion 20.

However, if moisture enters this space, not only can the sanitary condition be deteriorated, such as bacteria propagating inside the handle part 20, but also the incoming moisture remains inside the handle part 20, so the feeling of using the toothbrush and the spacing of the bristles Accommodative function may also be adversely affected. In order to solve this problem, a plurality of

drainage holes

201 and 203 are formed on the lower and rear surfaces of the handle part 20, and the moisture introduced into the handle part 20 is directly discharged, so that the toothbrush ( 1) It is possible to keep the inside clean and not hinder the function of adjusting the spacing of the bristles. In particular, by analyzing the posture of the user holding the toothbrush 1 and brushing, when the positions of the plurality of

drainage holes

201 and 203 are located on the lower part and the rear surface of the handle part 20, the effect of discharging moisture is the most excellent confirmed.

Furthermore, in the case of the drain hole 203 formed on the rear surface of the handle part 20, it can be formed with the manufacturer's trademark, logo or desired design, so that the aesthetic function of the toothbrush 1 can be implemented at the same time as the water discharge function. effects can be expected.

Hereinafter, the spacing adjusting mechanism of the bristles will be described in detail in the order of a slide type, a push type, and a rotation type according to a method of implementing the spacing adjusting function of the bristles.

Referring to FIG. 4, the toothbrush head control unit 30 covers the center brush 105 and the plurality of

rotating brushes

101, 103, 107, 109 arranged side by side with each other, so that bristles are placed on the brush and inserted into the oral cavity. It may be formed on the opposite side of the part being, that is, the handle part 20. Accordingly, the user can change the spacing of the bristles as desired by manipulating the head control unit 30 during brushing.

Referring to FIG. 5 , the toothbrush head adjusting unit 30 may include a sole fixing unit 32 and a moving handle 34 formed on the sole fixing unit 32 . Here, the sole fixing part 32 basically has a function of fixing a plurality of

rotating soles

101, 103, 107, and 109, and the moving handle 34 moves the sole fixing part 32 in both directions according to the user's operation. It has a function of pushing so that it can be moved by sliding. Accordingly, the sole fixing part 32 slides while in contact with the plurality of

rotating soles

101, 103, 107, 109, and the plurality of

rotating soles

101, 103, 107 in contact with each other during sliding movement , 109) and the shape of the inside of the sole fixing part 32, rotation of the sole can be realized. For example, the plurality of

rotating soles

101, 103, 107, and 109 are manufactured to have a spiral or spiral-like three-dimensional structure, so that the sole rotates naturally when sliding while being fixed to the sole fixing part 32 can be implemented

Specifically, the sole fixing part 32 has a plurality of sole through

holes

321, 323, 325, 327, 329 formed to pass the center sole 105 and the plurality of

rotating soles

101, 103, 107, 109. ) may be included. That is, the center solde 105 is arranged to pass through the solde through hole 325 and fixed to the solde through hole 325, and the

rotating solde

101, 103, 107, 109 are disposed through the solde through

hole

321, 323, 327 , 329) may be arranged to pass through, respectively, and fixed to each of the sole pass-through

holes

321, 323, 327, and 329.

In this way, the sole fixing part 32 may have a lower portion opened by a plurality of soldae passage holes 321 , 323 , 325 , 327 , and 329 . As the solde fixing part 32 has such a shape, it is possible to easily manufacture a three-dimensional structure for rotating the solde in preparation for a structure in which both the bottom and the top are closed and there is a hole through which the solde passes through, Not only can the parts be easily manufactured, but also ease of assembly can be ensured since there is no need to insert the

soles

101, 103, 105, 107, and 109 into the sole fixing part 32 one by one.

Subsequently, referring to FIG. 7 together, the plurality of

rotating soles

101, 103, 107, and 109 each include a plurality of rotation guide

parts

111, 113, 117, and 119 to implement natural rotation of the sole in a slide manner. can do. As described above, the plurality of rotational

rotation guidance units

111, 113, 117, and 119 may be part of the plurality of

rotational belts

101, 103, 107, and 109 that come into contact with the sole fixing unit 30 during slide movement, as described above. there is. In this embodiment, a plurality of

rotation guidance units

111 , 113 , 117 , and 119 are formed into a three-dimensional structure having a pre-designed shape, so that the sole rotation function can be implemented. Here, the three-dimensional structure of the plurality of

rotation guidance units

111, 113, 117, and 119 may be a spiral or spiral-like three-dimensional structure as described above, but the scope of the present invention is not limited thereto, and the sole fixing unit 32 When sliding while being fixed to the solid structure of various shapes formed so that the sole can rotate naturally as much as a desired angle may be included in the scope of the present invention.

In particular, among the plurality of

rotation guidance units

111, 113, 117, and 119, immediately adjacent two

rotation guidance units

111, 113, 117, and 119 may have three-dimensional structures different from each other. That is, when the rotation guidance unit 111 of the sale unit 101 and the rotation guidance unit 113 of the sale unit 103 are formed in different three-dimensional structures and slide while being fixed to the sale unit fixing unit 32, the sale unit 101 ) and the rotation angle of the soldae 103 can be changed. For example, the rotation angle of the solde 101 located relatively far from the center solde 105 is greater than the rotational angle of the solde 103 located relatively close from the center solde 105, the rotation of the solde 101. The three-dimensional structures of the induction unit 111 and the rotation induction unit 113 of the sole 103 may be manufactured differently. The description can be equally applied to the rotation guide part 117 of the solde 107 and the rotation guide part 119 of the solde 109.

In addition, the inner surfaces of the plurality of

solde passing holes

321, 323, 325, 327, and 329 are in contact with the plurality of rotation guide

parts

111, 113, 117, and 119, and the

rotating soles

101, 103, 107, and 109 It may be formed in a three-dimensional structure that guides to rotate. For example, if the plurality of

rotation inducing parts

111, 113, 117, and 119 have a spiral three-dimensional structure, a plurality of soldae through

holes

321, 323, 325, The inner surfaces of 327 and 329) may be formed as a hexahedral three-dimensional structure including planes vertically connected to each other in a form including a virtual hexahedron. Accordingly, while the plurality of rotation guide

parts

111, 113, 117, and 119 slide in contact with the inner surfaces of the plurality of through

holes

321, 323, 325, 327, and 329 having a hexahedral three-dimensional structure, natural rotation can be made.

On the other hand, as shown in Figures 5 and 6, both sides of the handle fixing portion 32, a plurality of

handle contact portions

36 and 38 formed to contact the handle portion 20 may be formed. In addition, each of the plurality of

handle contact portions

36 and 38 includes

contact protrusions

361 and 381 formed on the outer surface thereof, and the

contact protrusions

361 and 381 are accommodated on the inner surface of the handle portion 20 to fix the handle. A plurality of contact protrusion accommodating portions 221 allowing the handle 32 to be hooked and fixed to the handle 20 may be formed at regular intervals, for example.

By this structure, when the sole fixing part 32 is moved by the user in a sliding manner, the sole fixing part 32 is placed on the inner surface of the handle part 20 at regular intervals (or non-constant but predetermined intervals). The contact protrusions 361 and 381 of the sole fixing part 32 are caught on the formed plurality of contact protrusion accommodating parts 221, so that the user can adjust the rotation angle of the sole in predetermined steps, and thus the bristles of the brush head. The interval change may be given in predetermined steps.

For example, the contact protrusion accommodating portion 221 may be formed at 5 positions capable of holding and fixing the sole fixing part 32 such that the rotation angle of the sole is 5. Accordingly, when the

contact protrusions

361 and 381 of the solder fixing part 32 are accommodated in the contact protrusion accommodating portion 221 formed at the first position among the five positions, the rotating

soles

101, 103, 107, and 109 are center sold. It can be opened at the maximum angle based on (105), and the bristles in the corresponding state may be in a state in which even the gums can be massaged. Alternatively, when the

contact protrusions

361 and 381 of the solder fixing part 32 are accommodated in the contact protrusion accommodating portion 221 formed at the second position, the rotating

soles

101, 103, 107, and 109 are centered on the sole 105 It may be opened at an intermediate angle based on , and the bristles in the corresponding state may be in an optimized state for cleaning bacterial cysts. Alternatively, when the

contact protrusions

361 and 381 of the solder fixing part 32 are accommodated in the contact protrusion accommodating portion 221 formed at the third position, the rotating

soles

101, 103, 107, and 109 do not rotate , the bristles in that state may be in a normal state or a storage state.

Alternatively, when the

contact protrusions

361 and 381 of the solder fixing part 32 are accommodated in the contact protrusion accommodating portion 221 formed at the fourth position, the rotating

soles

101, 103, 107, and 109 are centered on the sole 105 It can be gathered at an intermediate angle toward, and the bristles in that state can be in a state where brushing is possible by covering three sides of the teeth. Alternatively, when the

contact protrusions

361 and 381 of the solder fixing part 32 are accommodated in the contact protrusion accommodating portion 221 formed at the fifth position, the rotating

soles

101, 103, 107, and 109 are centered on the sole 105 ), and the bristles in that state may be in a state in which brushing is possible for narrow gaps in the interdental or oral cavity.

In this way, by adopting a method in which the sole fixing part 32 stops at a point determined as, for example, the first to fifth positions during sliding, the user can take several steps to adjust the brush head spacing suitable for himself or his personal situation. It is possible to recognize whether or not to slide the toothbrush, so that the user does not have to make extra efforts to find an appropriate interval each time he or she brushes the teeth, thereby increasing user convenience.

In particular, when the sole fixing part 32 repeats sliding, considering that the

handle contact parts

36 and 38 or the

contact protrusions

361 and 381 may be worn, a plurality of parts formed to contact the handle part 20. The

handle contact portions

36 and 38 are formed on both sides of the sole fixing portion 32. Accordingly, the

handle contact parts

36 and 38 or the contact area than the case where the area in contact with the handle part 20 is formed only on one side of the handle fixing part 32 (for example, the upper surface of the handle fixing part 32). Wear of the

protrusions

361 and 381 can be remarkably reduced. In addition, by manufacturing the handle fixing part 32 including the

handle contact parts

36 and 38 or the

contact protrusions

361 and 381 with POM (PolyOxyMethylene) material, it is possible to secure high rigidity, low frictional force and improved dimensional stability. can

In addition, in some embodiments of the present invention, a coupling ring may be formed between the moving handle 34 and the solde fixing part 32, and the coupling ring reduces the coupling force between the moving handle 34 and the solde fixing part 32. It can strengthen the function.

On the other hand, referring to FIGS. 6 and 7 , each of the plurality of

rotating soles

101 , 103 , 107 , and 109 may include a plurality of

handle engaging portions

131 and 133 . The

handle locking parts

131 and 133 may be formed in a shape in which a portion of the plurality of

rotating soles

101, 103, 107, and 109 is dug out, which is a plurality of sole

pressing parts

223 and 225 of the handle portion 20 It is to form a space for accommodating. That is, the handle part 20 includes a plurality of

handle pressing parts

223 and 225 for pressing and fixing the plurality of

handle holding parts

131 and 133, and the plurality of

handle pressing parts

223 and 225 include a handle part ( 20) has a shape protruding from the inner surface of the handle, so that the protruding sole pressing portion 223 presses and fixes all of the handle engaging portions 131 formed on each of the plurality of

rotating soles

101, 103, 107, and 109, and protrudes. The soldae pressing unit 225 presses and fixes all of the handle locking portions 133 formed on each of the plurality of rotating

soldae

101, 103, 107, and 109.

Here, the handle locking portion (131, 133) may be formed in a plurality of rotating Soldae (101, 103, 107, 109) at a plurality of rotation guide portion (111, 113, 117, 119) and spaced positions. In particular, the handle engaging portion 131 is formed on one side based on the plurality of

rotation guidance portions

111, 113, 117, and 119, and the handle engaging portion 133 is formed on a plurality of

rotation guidance portions

111, 113, 117, and 119. ) may be formed on one side based on. Due to this structure, the toothbrush head control unit 30 is disposed between the

handle locking parts

131 and 133 and the sole

pressing parts

223 and 225, so that the function of adjusting the distance between the bristles and the function of pressing and fixing the brush head do not interfere with each other. you can make it In particular, a plurality of

rotating brushes

101, 103, 107, and 109 are rotated to adjust the spacing of the bristles, and the

handle holding parts

131 and 133 disposed on both sides of the toothbrush head control unit 30 and the brush presser (223, 225) can prevent the risk of separation from the position of the sole during rotation and enable stable rotation.

Meanwhile, in some embodiments of the present invention, a protruding dome may be formed on the

soles

101, 103, 105, 107, and 109. For example, a protruding dome may be formed to surround the soldae 105, and a protruding dome may be formed to surround the soldae 105 and the adjacent soldae 103. Here, the protruding dome surrounds the sole and is formed thicker than the thickness of the sole, for example, it may be a cylinder shape, a cone shape, a dome shape, or various shapes that can be made by combining these shapes, and the sole is perpendicular to the It may be a structure having a circular cross section cut in the direction. Accordingly, the sold stage 103 may rotate while the surface of the protruding dome formed on the sold stage 105 and the surface of the protruding dome formed on the sold stage 103 are in contact with each other. Similarly, a protruding dome is formed on the sold stage 107, and the sold stage 103 can rotate while the surface of the protruding dome formed on the sold stage 105 and the surface of the protruding dome formed on the sold stage 107 are in contact with each other. That is, the protruding dome may be of various shapes possible within a range that does not interfere with the rotation of each soldae formed with the protruding dome.

Furthermore, protruding domes may be formed on the

soles

101 and 109 as well. Accordingly, the sold stage 103 and the sold stage 101 may rotate while the surface of the protruding dome formed on the sold stage 103 and the surface of the protruding dome formed on the sold stage 101 are in contact with each other. Similarly, the sold stage 107 and the sold stage 109 may rotate while the surface of the protruding dome formed on the sold stage 107 and the surface of the protruding dome formed on the sold stage 109 are in contact with each other.

In this way, as the protruding dome is formed on the

soles

101, 103, 105, 107, and 109, the toothbrush head 10 is prevented from shaking from side to side, so that the operation stability of the toothbrush can be further improved.

Referring to FIGS. 8 and 9 , the plurality of

rotating soles

101 , 103 , 107 , and 109 may include a plurality of sole

fitting protrusions

121 , 123 , 127 , and 129 , respectively. Meanwhile, the central sole 105 may include a plurality of sole

fitting protrusions

1051 , 1053 , 1057 , and 1059 for accommodating a plurality of sole

fitting protrusions

121 , 123 , 127 , and 129 . As shown, in order to form a plurality of solder fitting projection

accommodating portions

1051, 1053, 1057, 1059 side by side, the center sole 105 has its distal end toward the handle portion 20. It may have an extended shape in a direction perpendicular to the extending direction. A plurality of solder fitting projections (121, 123, 127, 129) of the plurality of rotating soles (101, 103, 107, 109) are respectively a plurality of solder fitting projections receiving portions (1051, 1053, 1057, 1059), the plurality of

rotating soles

101, 103, 107, 109 can be rotated according to the user's manipulation of the toothbrush head control unit 30 while being fixed to the central sole 105.

In some embodiments of the present invention, the sole

fitting protrusions

121 and 123 of the immediately adjacent two

rotating soles

101 and 103, or 107 and 109 among the plurality of sole fitting

protrusion receiving portions

1051, 1053, 1057, and 1059, Or 127 and 129) may be formed in different shapes from each other in cross sections of the fitting protrusion

accommodating portions

1051 and 1053, or 1057 and 1059. For example, the cross section of the sole fitting protrusion accommodating portion 1053 in which the sole fitting protrusion 123 of the rotating sole 103 immediately adjacent to the center sole 105 of the two immediately adjacent

rotating soles

101 and 103 is accommodated A sole fitting protrusion accommodating portion 1051 formed in a circular shape and accommodating the sole fitting protrusion 121 of the rotating sole 101 that is not immediately adjacent to the center sole 105 of the two immediately adjacent

rotating soles

101 and 103 The cross section of may be formed in an elliptical shape. Similarly, the cross section of the sole fitting protrusion accommodating part 1057 in which the sole fitting protrusion 127 of the rotating sole 107 immediately adjacent to the center sole 105 of the two immediately adjacent

rotating soles

107 and 109 is accommodated is circular. Formed, cross section of the sole fitting protrusion accommodating portion 1059 in which the sole fitting protrusion 129 of the rotating sole 109 that is not immediately adjacent to the center sole 105 of the two immediately adjacent

rotating soles

107 and 109 is accommodated may be formed in an oval shape.

According to this structure, the rotating sole (101, 109) that is not directly adjacent to the central sole (105) is to secure a free space to move in the vertical direction relative to FIG. 8 or 9 during rotation, so that the bristles of the brush head Interval adjustment can be made by synthesizing not only the rotation of the sole in the horizontal direction but also the vertical movement of some of the soles, so the effect of further improving the brushing effect by contacting the brush to the tooth surface in a more three-dimensional manner can be expected.

When the user adjusts the spacing of the bristles using the toothbrush structure described above, the shape of the bristles is such that the brushes of the

rotating soles

101, 103, 107, and 109 are collected toward the central sole 105 as shown in FIG. Or, as shown in FIG. 11, the sole of the rotating sole (101, 103, 107, 109) may be spread based on the central soldae (105).

Accordingly, the spacing of the bristles can be changed as desired during brushing so that effective brushing is performed on various shapes in the oral cavity, such as the tooth surface, interdental area, and tongue, with only one toothbrush, so that brushing the wide surface of the teeth 11 in the form of FIG. 11, in the form of FIG. 10 in the case of brushing between narrow gaps such as between teeth, or in the form of FIG. 11 in the case of brushing to clean the tongue, optimized for various situations. Since it is possible to brush the teeth, oral hygiene, bad breath removal and tooth decay prevention effects can be maximized.

In addition, while providing a personalized type of toothbrush structure for users with different oral structures with only one toothbrush, it is manufactured to enable mass production, providing an effect of providing a user-customized toothbrush at a relatively low manufacturing cost. .

Referring to FIG. 12 , the handle part 20 may be formed by combining an upper handle 22 and a lower handle 24 . In particular, a method in which the upper handle 22 and the lower handle 24 are coupled may be a hook coupling. In order to form a hook coupling, a plurality of hooks are formed at a plurality of points inside the upper handle 22, and at a point corresponding to the plurality of hooks formed on the upper handle 22, among the inside of the lower handle 24. A plurality of hook holding structures in which hooks can be caught may be formed. Alternatively, on the contrary, a plurality of hooks are formed at a plurality of points inside the lower handle 24, and a hook is formed at a point corresponding to the plurality of hooks formed on the lower handle 24, among the inside of the upper handle 22. A plurality of catchable hook structures may be formed.

In this way, when the upper handle 22 and the lower handle 24 are hook-coupled, there is an advantage that the user can disassemble the handle portion 20 as needed, in preparation for the method of fusing each other. For example, the user can disassemble the handle part 20 to replace the damaged or worn brush handle and then reassemble the handle part 20, so that when only the brush handle is damaged or worn, the entire toothbrush does not need to be replaced. Since Taiwan can be replaced, cost can be reduced from the user's point of view to provide economic feasibility, and environmental waste or pollution of resources can be reduced, thereby obtaining the advantage of being eco-friendly.

However, in the case of such a hook coupling, it may be necessary to reinforce the bonding force and fixing force between the upper handle 22 and the lower handle 24 compared to the fusion method. To this end, the toothbrush according to this embodiment may further include a ring part 40 and a cap part 42. As shown, the ring portion 40 and the cap portion 42 may be formed to be fitted to one end of the handle portion 20 in a hook-coupled state. Specifically, the ring part 40 is inserted into the handle part 20 in the hook-coupled state to provide coupling and fixing force between the upper part 22 and the lower part 24 of the handle first, and then insert the cap part 42. By inserting, the bonding force and fixing force can be further increased secondarily.

That is, due to the structure of the toothbrush according to the present embodiment, the user can replace only the brush head, while the handle portion 20 is firmly coupled and fixed, resulting in an advantageous effect of enabling stable brushing.

13 to 15, the difference from the toothbrush described in FIGS. 1 to 3 is that the toothbrush 1a has a toothbrush head 10a with one central sole 105a and two

rotating soles

103a and 107a that it includes only That is, the rotating soldae 103a may be disposed on one side of the central soldae 105a, and the rotating soldae 107a may be disposed on the other side.

The plurality of

rotating brushes

103a and 107a can be rotated according to the operation of the toothbrush head control unit 30a to change the spacing of the bristles. It may be rotated to face the sole of the sole 105a or, conversely, the soles installed in each may be rotated away from the central sole 105a. In this way, by adopting a brush head 10a that is rotatable by an angle desired by the user, a function of adjusting the spacing of the bristles may be implemented.

On the other hand, a drainage hole 203a is formed on the rear surface of the handle portion 20a, so that moisture inside the toothbrush can be discharged to the outside. Of course, in order to increase the water discharge effect, like the toothbrush of FIG. 1, a drainage hole 201a may be additionally formed in the lower part of the handle portion 20a. As described above, unlike a general toothbrush formed without a space inside, since an empty space is formed inside the handle portion 20a so that moisture can flow in, a drainage hole 203a is formed on the rear surface of the handle portion 20a. It is possible to form a handle portion 20a so that moisture introduced into the interior can be immediately discharged so as not to impede the bristle spacing control function while maintaining cleanliness inside the toothbrush 1a.

The toothbrush head control unit 30a includes a brush head fixing unit 32a and a moving handle 34a, and covers the center brush 105a and the plurality of

rotating brushes

103a and 107a disposed side by side with each other, so as to cover the bristles in the brush head. It may be placed and formed on the opposite side of the portion inserted into the oral cavity, that is, on the handle portion 20a. Accordingly, the user can change the spacing of the bristles as desired by manipulating the head control unit 30a during brushing. Here, those with ordinary knowledge in the field to which the present invention belongs will understand that the details of the toothbrush head control unit 30a can be applied to the contents of the toothbrush head control unit 30 above.

On the other hand, the plurality of

rotating soles

103a and 107a each have a plurality of sole fitting protrusions, and the center sole 105a has a plurality of sole fitting

protrusions receiving portions

1053a and 1057a for accommodating a plurality of sole fitting protrusions. Thus, as each of the plurality of sole fitting protrusions of the plurality of

rotating soles

103a and 107a is fitted and fixed to the plurality of sole fitting

protrusion receiving portions

1053a and 1057a of the central sole 105a, the plurality of

rotating soles

103a, 107a) is able to rotate according to the user's manipulation of the toothbrush head control unit 30a while being fixed to the center sole 105a.

In addition, it is clear to those skilled in the art that the above information with reference to FIGS. 1 to 12 can also be applied to the toothbrush 1a according to the present embodiment.

Of particular note, the outer appearances of elements such as the handle portion 20a, the toothbrush head control portion 30a, the drainage hole 203a, and the moving handle 34a shown in FIGS. 13 to 15 are shown in FIGS. 2 to 5 Although it is shown to be different from the outer shape of the handle part 20, the toothbrush head control part 30, the drainage hole 203, the moving handle 34, etc., the outer shape does not limit the scope of the present invention. . Therefore, even in the case of including only the three

soles

103a, 105a, and 107a in FIG. 13, the handle portion 20, the toothbrush head control portion 30, the drainage hole 203, and the moving handle ( 34) or the like, or even adopting the ring portion 40 and the cap portion 43 shown in FIG. 2 and not shown in FIG. 13 is obvious to those skilled in the art to which the present invention belongs. .

Hereinafter, a push type and a rotation type in which the toothbrush

head control units

30 and 30a are implemented in different ways will be described based on the above description. The push type and the rotation type have different mechanisms for rotating the soles to adjust the brush head spacing from the slide type described above, but other features other than the slide rotation mechanism described in relation to the slide type are not disposed in the push type and rotation type mechanisms. Unless otherwise specified, it is clear that it can still be applied to push and rotation types.

Referring to FIG. 16, a toothbrush according to an embodiment of the present invention includes a toothbrush head and a handle, and the toothbrush head rotates according to the operation of the central brush and the toothbrush head control unit 50 provided in the handle to adjust the bristles of the brush. It may include a plurality of rotating soles changing intervals.

Here, the toothbrush head control unit 50 includes a central pillar part 54 and a plurality of

push buttons

52 and 53 disposed at both ends of the central pillar part 54, and the movement of the central pillar part 54 A plurality of rotating soles can be rotated accordingly. Specifically, the central pillar portion 54 may include teeth formed on both sides of the gear 56 formed on one of the plurality of rotating soles and the gear 58 formed on the other of the plurality of rotating soles. can

17 is a view showing a cross section cut along line AA in FIG. 16, and as shown, the center sole 105 may be disposed in the center of the central pillar portion 54, and the gear 56 is a rotating sole ( 103), and the gear 58 may be formed to be coupled with the rotating soldae 107. In addition, the toothbrush head control unit 50 may be disposed inside the handle part 20 composed of the upper part 22 and the lower part 24 of the handle. Accordingly, when the user presses the push button 52, the central pillar part moves downward with reference to FIG. 17, and the teeth formed on both sides of the central pillar part 54 and the teeth formed on the

gears

56 and 58 are Engaged, the rotating

soles

103 and 107 rotate toward the central sole 105 so that the spacing between the bristles can be narrowed. Conversely, when the user presses the push button 54, the central pillar part moves upward with reference to FIG. 17, and the teeth formed on both sides of the central pillar part 54 and the teeth formed on the

gears

56 and 58 are engaged. , Rotation Soldae (103, 107) can be rotated toward the outside relative to the central Soldae 105 to widen the spacing of the bristles.

16 and 17, teeth are formed only on some (eg, semicircular) of the circular cross sections of the

gears

56 and 58, but the scope of the present invention is not limited thereto, and if necessary, the circumference of the circular cross section is formed. The sawtooth may be continuously formed along the way.

According to the present embodiment, the spacing of the bristles can be changed as desired during brushing so that effective brushing is performed on various shapes in the oral cavity, such as the tooth surface, interdental area, and tongue, with only one toothbrush, Widen the gap between the bristles when brushing, narrow the gap between the bristles when brushing between narrow gaps such as between teeth, or widen the gap between the bristles when brushing to clean the tongue. Since brushing optimized for the situation is possible, oral hygiene, bad breath removal, and tooth decay prevention effects can be maximized.

Referring to FIG. 18, a toothbrush according to an embodiment of the present invention includes a toothbrush head and a handle, and the toothbrush head rotates according to the operation of the central brush and the toothbrush head control unit 60 provided in the handle to adjust the bristles of the brush. It may include a plurality of rotating soles changing the spacing.

Here, the toothbrush head control unit 60 may include a rotator 62 that rotates and rotates a plurality of rotating soles. Specifically, the rotator 62 may include a central gear 64 formed to rotate a gear 66 formed on one of a plurality of rotating soles, and the rotator 62 cooperates with the central gear 64 Thus, a central auxiliary gear 65 formed to rotate the gear 68 formed on the other one of the plurality of rotating soles may be further included.

19 is a view showing a cross section taken along line BB in FIG. 18, and as shown, the central gear 64 is coupled to the shaft 67 connected to the rotator 62, and the central auxiliary gear 65 is the shaft (69), the gear 66 is coupled to the rotating soldae 103, and the gear 68 may be formed to be coupled with the rotating soldae 107. In addition, the toothbrush head control unit 60 may be disposed inside the handle part 20 composed of the upper part 22 and the lower part 24 of the handle. Accordingly, when the user rotates the rotator 62 in one direction, the central gear 64 rotates the gear 66 while rotating in the corresponding direction, and at the same time rotates the auxiliary central gear 65 and the gear 68 to , Rotating Soldae (103, 107) can be rotated toward the central Soldae 105 so that the spacing of the bristles is narrowed. Conversely, when the user rotates the rotator 62 in the opposite direction, the central gear 64 rotates the gear 66 while rotating in the corresponding direction, and at the same time rotates the auxiliary central gear 65 and the gear 68, The rotating

soles

103 and 107 rotate outward with respect to the central sole 105 to widen the spacing between the bristles.

In FIGS. 18 and 19, teeth are formed only on a portion (eg, a semicircle) of the circular cross sections of the

gears

66 and 68, but the scope of the present invention is not limited thereto, and if necessary, the circumference of the circular cross section is formed. The sawtooth may be continuously formed along the way.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments and can be manufactured in various different forms, and those skilled in the art A person will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

Claims

A toothbrush comprising a toothbrush head and a handle,

The toothbrush head includes a central sole and a plurality of rotating soles that rotate according to the operation of the toothbrush head control unit provided in the handle to change the spacing of the bristles,

The toothbrush head control unit includes a sole fixing part and a moving handle formed on the sole fixing part,

The sole fixing part includes a plurality of sole passing holes formed to pass the central sole and the plurality of rotating soles,

On both sides of the sole fixing part, a plurality of handle contact portions formed to contact the handle portion are formed, toothbrush.
According to claim 1,

Each of the plurality of handle contact portions includes a contact protrusion formed on an outer surface thereof,

A toothbrush having a plurality of contact protrusion receiving portions formed on an inner surface of the handle portion so that the contact protrusion is accommodated so that the handle fixing portion is engaged and fixed to the handle portion.
According to claim 1,

The plurality of rotating soles each include a plurality of rotation guidance units,

Among the plurality of rotation guidance units, two immediately adjacent rotation guidance units are formed in three-dimensional structures different from each other,

The inner surface of the plurality of soldae passing holes, in contact with the plurality of rotation guide portion, formed into a three-dimensional structure for guiding to rotate the rotational soldae, toothbrush.
According to claim 1,

Each of the plurality of rotating soles includes a plurality of handle holding portions, respectively,

The handle portion includes a plurality of sole presses for pressing and fixing the plurality of handle locking portions, toothbrush.
According to claim 1,

The handle portion is formed by hook coupling of the upper handle and the lower handle,

Toothbrush further comprising a ring portion and a cap portion formed to be fitted to one end of the handle portion in the hook-coupled state.
According to claim 1,

Toothbrush further comprising a plurality of drainage holes formed on the bottom and rear surface of the handle portion to discharge moisture inside the toothbrush to the outside.
According to claim 1,

The lower part of the sole fixing part is opened by the plurality of sole pass-through holes, toothbrush.
According to claim 1,

A toothbrush formed with a coupling ring between the moving handle and the fixing part of the sole.
According to claim 1,

The central sole and the plurality of rotating soles, and the central sole and the brushes of the plurality of rotating soles are integrally injection-molded, toothbrush.
According to claim 1,

The plurality of rotating soles are provided with a plurality of sole fitting protrusions, respectively,

The center sole has a plurality of sole fitting protrusions accommodating portions for accommodating the plurality of sole fitting protrusions,

Of the plurality of solder fitting protrusion accommodating portions, cross-sections of the sole fitting protrusion accommodating portion in which the sole fitting protrusions of two immediately adjacent rotational soles are accommodated are formed in different shapes from each other.
According to claim 10,

Of the two immediately adjacent rotating soles, the cross section of the sole fitting protrusion accommodating portion of the rotating sole immediately adjacent to the center sole is formed in a circular shape,

Of the two immediately adjacent rotating soles, the cross section of the sole fitting protrusion accommodating portion of the rotating sole that is not immediately adjacent to the center sole is formed in an elliptical shape.
A toothbrush comprising a toothbrush head and a handle,

The toothbrush head includes a central sole and a plurality of rotating soles that rotate according to the operation of the toothbrush head control unit provided in the handle to change the spacing of the bristles,

The toothbrush head control unit,

Including a central pillar portion and a plurality of push buttons disposed on both ends of the central pillar portion,

In accordance with the movement of the central pillar portion rotates the plurality of rotating sole,

toothbrush.
According to claim 12,

The central pillar portion, toothbrush formed on both sides of the teeth formed to rotate the gear formed on one of the plurality of rotating soles and the gear formed on the other one of the plurality of rotating soles.
According to claim 12,

The handle portion is formed by hook coupling of the upper handle and the lower handle,

Toothbrush further comprising a ring portion and a cap portion formed to be fitted to one end of the handle portion in the hook-coupled state.
According to claim 12,

Toothbrush further comprising a plurality of drainage holes formed on the bottom and rear surface of the handle portion to discharge moisture inside the toothbrush to the outside.
A toothbrush comprising a toothbrush head and a handle,

The toothbrush head includes a central sole and a plurality of rotating soles that rotate according to the operation of the toothbrush head control unit provided in the handle to change the spacing of the bristles,

The toothbrush head control unit includes a rotator that rotates and rotates the plurality of rotating soles.

toothbrush.
According to claim 16,

The rotator includes a central gear formed to rotate a gear formed on one of the plurality of rotating soles.
According to claim 17,

The rotator further comprises a central auxiliary gear 65 formed to rotate a gear formed on the other one of the plurality of rotating soles in cooperation with the central gear.
According to claim 16,

The handle portion is formed by hook coupling of the upper handle and the lower handle,

Toothbrush further comprising a ring portion and a cap portion formed to be fitted to one end of the handle portion in the hook-coupled state.
According to claim 16,

Toothbrush further comprising a plurality of drainage holes formed on the bottom and rear surface of the handle portion to discharge moisture inside the toothbrush to the outside.