KR20140132637A - Vibrating toothbrush having a screw-combined structure - Google Patents

Vibrating toothbrush having a screw-combined structure Download PDF

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Publication number
KR20140132637A
KR20140132637A KR20130052145A KR20130052145A KR20140132637A KR 20140132637 A KR20140132637 A KR 20140132637A KR 20130052145 A KR20130052145 A KR 20130052145A KR 20130052145 A KR20130052145 A KR 20130052145A KR 20140132637 A KR20140132637 A KR 20140132637A
Authority
KR
South Korea
Prior art keywords
connecting member
toothbrush
lower cap
toothbrush head
male
Prior art date
Application number
KR20130052145A
Other languages
Korean (ko)
Other versions
KR102037888B1 (en
Inventor
김성진
박미정
하원호
이인호
이상민
Original Assignee
주식회사 엘지생활건강
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Application filed by 주식회사 엘지생활건강 filed Critical 주식회사 엘지생활건강
Priority to KR1020130052145A priority Critical patent/KR102037888B1/en
Publication of KR20140132637A publication Critical patent/KR20140132637A/en
Application granted granted Critical
Publication of KR102037888B1 publication Critical patent/KR102037888B1/en

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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B17/00—Accessories for brushes
    • A46B17/04—Protective covers for the bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/0095—Removable or interchangeable brush heads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

A toothbrush in the present invention is characterized by comprising a lower cap including a storage space inside, and including a first female screw part including a screw thread on the internal diameter; a toothbrush head part including an insertion groove and a second female screw part including a screw thread on the internal diameter of the insertion groove; and a connection member including a connection member body, and a first male screw part and a second male screw part protruded from both ends of the connection member body of the longitudinal direction and having screw thread formed on the outer circumferential surface respectively, wherein each of the first female screw part and the first male screw, and the second female screw part and the second male screw part is combined by screw-combination method. Therefore, the screw threads can support the first female screw part and the second female screw part not to be separated in case of a force being applied in the direction of separating the lower cap or the toothbrush head part and the connection member.

Description

[0001] The present invention relates to a vibrating toothbrush having a screw-

The present invention relates to a vibrating toothbrush. And more particularly to a vibrating toothbrush having a threaded coupling structure that connects a toothbrush head to a vibrating toothbrush body and transmits vibrations from the vibrating toothbrush body to a toothbrush head.

2. Description of the Related Art Generally, a vibrating toothbrush is a mechanism that cleans teeth by vibrating bristles that receive vibration power as the vibration motor provided therein oscillates. Such a vibrating toothbrush includes a toothbrush head portion in which bristles are planted and a toothbrush body that can be held by a user, and a vibration motor and a battery are mounted on the toothbrush body. That is, in the case of a vibrating toothbrush having the above-described structure, a storage portion is provided in the toothbrush body for easy storage of the vibration motor and the battery.

On the other hand, since the battery is typically circular or cylinder-shaped, the toothbrush body has an internal structure of a shape corresponding to the battery for accommodating the battery therein. At this time, the toothbrush body is provided with a switch which is operated to selectively supply power to the vibration motor.

In order to reduce the cost of the user, the vibration toothbrush has been developed in order to facilitate the replacement of the toothbrush head and the battery as described above.

The conventional technique as described above includes the 'Vibration toothbrush' of Korean Utility Model No. 20-0418868.

1, the vibration toothbrush is capable of preventing the case 10 and the toothbrush 20 from being separated from each other. In the case of coupling between the case 10 and the toothbrush 20, 11 and the engaging jaw 21, as shown in Fig. The case 10 and the plug 30 also have a structure using the coupling jaws 31. FIG.

The above-described coupling structure requires a plurality of manufacturing steps due to the complexity of the coupling structure when manufacturing the case 10, the toothbrush 20 and the plug 30, thereby increasing the manufacturing time and complicating the structure Therefore, there is a problem that the manufacturing unit cost rises.

In addition, the joining structure using the engagement jaws 21 and the engagement jaws 31 in accordance with the use time may cause fatigue rupture, that is, cracks in the material grow little by little, and if the number of repetitions exceeds a certain limit, Durability problems are also always present in the vibrating toothbrushes because they are easily exposed to the conditions.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and it is an object of the present invention to provide a toothbrush body having a screw connection structure that minimizes the possibility of fatigue fracture by minimizing fatigue accumulation due to a radial impact while maintaining the connection between the toothbrush head portion and the toothbrush body And to provide a vibrating toothbrush.

It is another object of the present invention to provide a vibrating toothbrush having a screw-coupling structure that enables cost reduction through a simple manufacturing process.

According to an aspect of the present invention, there is provided a portable terminal comprising: a lower cap having a receiving space formed therein, a receiving space formed in the receiving space, and a first female threaded portion having an inner diameter formed therein; And a second female screw portion having an insertion groove and a thread formed on an inner diameter of the insertion groove; And a connecting member having a connecting member body and a connecting member having a first male thread portion and a second male thread portion protruding from both side ends in the longitudinal direction of the connecting member body and formed with threads on the outer circumferential surface, Wherein the first threaded portion and the second threaded portion are fastened together in a threaded manner.

Here, the axial cross section of the thread is a right-angled triangle in which an oblique surface is formed in a direction opposite to the insertion direction of the first male thread portion or the second female thread portion.

The tooth surface may include a vertical surface formed vertically from the oblique surface and the vertical surface when the lower cap or the toothbrush head portion and the connecting member are separated from each other. And the second female screw portion is supported so as to be prevented from being detached.

And an engaging groove formed at a side edge of the lower cap and the toothbrush head in a coupling direction, respectively; And a latching protrusion formed on both side edges of the connecting member so as to be engaged with the latching groove when the lower cap and the toothbrush head unit are coupled with the connecting member.

And a tooth protrusion formed to protrude from a side end of the threaded tooth formed on an inner circumferential surface of each of the lower cap and the toothbrush head, And a fitting groove formed on an outer circumferential surface of the connecting member so as to cooperate with the fitting protrusion.

In the vibrating toothbrush having the above-described structure according to the present invention, when a force is applied in a direction in which the lower cap or the toothbrush head part and the connecting member are separated from each other, Or the second female screw portion can be prevented from being detached.

In addition, since it is fastened in a threaded manner, durability against fatigue fracture due to radial force externally applied can be improved.

1 is a cross-sectional view of a conventional vibrating toothbrush,
FIG. 2 is an assembled perspective view illustrating a vibrating toothbrush having a threaded coupling structure according to the present invention,
3 is an exploded perspective view of a vibrating toothbrush having a threaded engagement structure according to the present invention,
4 is a cross-sectional view of a vibrating toothbrush having a threaded engagement structure according to the present invention,
FIG. 5 is a view showing the fixed relationship between each of the lower cap and the toothbrush head part and the connecting member in the vibrating toothbrush having the screw coupling structure according to the present invention,
FIG. 6 is a view showing a fixed relationship between a toothbrush head and a connecting member in a vibrating toothbrush having a threaded coupling structure according to the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to clarify the solution to the technical problem of the present invention. In the following description of the present invention, however, the description of related arts will be omitted if the gist of the present invention becomes obscure. In addition, the terms described below are defined in consideration of the functions of the present invention, and may be changed depending on the intention or custom of the designer, the manufacturer, and the like. Therefore, the definition should be based on the contents throughout this specification. In addition, parts denoted by the same reference numerals throughout the specification represent the same elements.

Hereinafter, a vibrating toothbrush 1 having a screw coupling structure according to the present invention will be described.

2 to 5, a vibrating toothbrush 1 having a screw coupling structure according to the present invention includes a lower cap 100, a connecting member 300 coupled to the lower cap 100, a lower cap 100 A toothbrush head 700 having an insertion groove 710 coupled to the connecting member 300 and a top cap 700 covering the toothbrush head unit 700 800).

The connecting member 300 includes a second hollow groove 310, a connecting member body 320, a first male threaded portion 330, a second male threaded portion 340, a latching protrusion 350, a through hole 360, A projection line 370, and a protruding lid 380.

The lower cap 100 has a first hollow portion 300 having an opening at one side thereof and an opening at one side thereof to be coupled to a connecting member 300 having a first male threaded portion 330 formed thereon, A groove 110 and a first internal thread 120 having an internal diameter threaded.

3 to 5, the first female screw portion 120 is screwed into the first male screw portion 330 in a threaded manner so as to be screwed to the first male screw portion 330, (Not shown).

The second hollow groove 310 of the connecting member 300 has an opening formed at one side thereof and a space formed therein for communicating with the first hollow groove 110.

4, when the lower cap 100 and the connecting member 300 are coupled, a part of the carrier 500 is inserted into the first hollow groove 110 and the second hollow groove 310 is inserted into the first hollow groove 110, The remaining part of the carrier 500 is inserted.

The first male threaded portion 330 and the second male threaded portion 340 are formed to protrude from both ends of the connecting member body 320 in the axial direction and the first male threaded portion 330, 1 female screw portion 120 in a threaded manner. The second male threaded portion 340 having a thread on the outer circumferential surface is fastened to the second female threaded portion 720 having a thread on the side surface of the insertion slot 710 in a threaded manner.

That is, the first male threaded portion 330, the first female threaded portion 120, the second male threaded portion 340, and the second female threaded portion 720 are formed into a threadably engageable structure So that it can be quickly fastened only by a minimum rotational action.

The threads formed in the first male threaded portion 330 and the second male threaded portion 340 are inserted into the insertion portions 331 and 341 and the vertical faces 332 and 342 and the oblique faces 333 and 343, 343).

Here, the thread is formed to protrude from the insertion portions 331 and 341 along the circumferential direction of the insertion portions 331 and 341. The axial cross section of the thread may be a right triangle shape in which oblique faces 333 and 343 are formed in the insertion direction of the first and second male threaded portions 330 and 340, respectively.

5, the axial cross section of the thread is formed by vertical surfaces 332 and 342 and oblique surfaces 333 and 343 formed to protrude vertically from the inserting portions 331 and 341. The vertical surfaces 332 and 342 and the oblique surfaces 333 and 343 are brought into contact with each other to form the edges 334 and 344 and the inclination angle?. Here, the inclination angle? Can be determined within a range of 20 ° to 85 ° for screw engagement using the principle of the oblique surface, as shown in FIG. 5, Deg.] To 60 [deg.].

In addition, the vibrating toothbrush 1 having the screw coupling structure according to the present invention has a structure in which the lower cap 100 or the toothbrush head part 700 and the connecting member 300 are fastened through a screw connection, The possibility of fatigue rupture is significantly lower than that of the coupling method using the engagement jaw 21 and the coupling jaw 31 of the vibration toothbrush mentioned in the related art.

5, the vertical surfaces 332 and 342 may be vertically protruded from the inserting portions 331 and 341. The vertical surfaces 332 and 342 may protrude vertically from the inserting portions 331 and 341, The threaded portion formed on the first female threaded portion 120 or the second female threaded portion 720 is supported and not released when a force is applied in a direction in which the first female threaded portion 300 is separated.

The connecting member 300 may include a bent surface 311 formed by a difference in diameter between the first screw portion 330 and the second screw portion 340 and the connecting member body 310.

As shown in Fig. 5, the latching protrusion 350 is formed so as to protrude perpendicularly to the bent surface 311. [ Each of the lower cap 100 and the toothbrush head portion 700 is provided with detaching grooves 130 and 730 which are formed to be engaged with the locking protrusions 350. When the lower cap 100 and the toothbrush head unit 700 are coupled to each other by the coupling member 300, the locking protrusion 350 is engaged with the locking recesses 130 and 730, Thereby preventing the portion 700 from being arbitrarily rotated.

The electric toothbrush 1 having the screw coupling structure according to the present invention includes the lower cap 100 and the toothbrush head portion 700 and the coupling protrusion 350 and the coupling groove 300 730 may be used to prevent the lower cap 100a and the toothbrush head portion 700a from being arbitrarily rotated with respect to the connecting member 300a by using the fitting projections and the fitting grooves provided separately or separately.

Referring to FIG. 6, the coupling protrusion 740 protrudes from the side of the threaded tooth insertion side formed on the inner peripheral surface of the toothbrush head 700a, . 6, the fitting groove 390 is formed on the outer peripheral surface of one side of the second male threaded portion 340 of the connecting member 300a so as to cooperate with the fitting projection 740. [

When the toothbrush head portion 700a and the connecting member 300a are screwed together, the fitting protrusion 740 is engaged with the fitting groove 390 so that the toothbrush head portion 700a is rotated arbitrarily with respect to the connecting member 300a .

The coupling between the fitting groove 390 of the connecting member 300a and the fitting protrusion (not shown) of the lower cap 100a is the same as the fitting groove 390 of the connecting member 300a described above, (740), and a description thereof will be omitted.

2 to 4, the through-hole 360 is formed to communicate with the outside at one side of the outer circumferential surface of the connecting member body 310 to press the switch 400. As shown in FIG. The soft protruding lid 380 is installed to cover the through hole 360, while the lower surface of the protruding lid 380 is in contact with the switch 400. Accordingly, when the protrusion lid 380 is pressed, the switch 400 is pressed to turn on / off the vibrating toothbrush 1 having the screwing structure according to the present invention.

4, the protrusion line 370 may be formed to protrude along the outer circumferential surface of the connecting member body 310. The protrusion line 370 is engaged with an annular groove formed along the inner circumferential surface of the upper cap 800 to engage the upper cap 800 with the connection member 300.

Referring to FIGS. 3 and 4, the carrier 500 is inserted into the first and second hollow grooves 110 and 310. The carrier 500 may include a battery fixing portion 510, a PCB mounting portion 520, a vibration motor fixing portion 530, and a battery supporting portion 540.

The battery fixing part 510 includes a battery mounting groove 511 which is formed to match the external shape of the battery 2 to fix the battery 2. [ The battery mounting groove 511 is elongated along the longitudinal direction of the carrier 500, as shown in FIG. A battery supporting part 540 is installed at the lower end of the battery 2 so that electricity can be supplied.

The power supplied from the battery 2 is supplied to the vibration motor 3 through the PCB 600 mounted on the PCB mounting part 520 and the supplied power is turned on / off by the switch 400 do.

Here, the wiring for supplying power of the battery 2 to the vibration motor 3 will be apparent to those skilled in the art with reference to the present specification, so that the description of the wiring will be omitted.

The PCB 600 is mounted on the PCB mounting portion 520 and the PCB 600 converts the power of the battery 2 to be suitable for driving the vibration motor 3 and is electrically connected to the switch 400 . Therefore, the switch 400 is turned on / off by the upper end of the switch 400 being pressed by the protruding lid 380, whereby the power of the battery 2 is supplied or cut off.

The vibration motor fixing part 530 fixes the vibration motor 3. In the vibration motor fixing portion 530, a vibration motor mounting groove 531 is formed which cooperates with the external shape of the vibration motor 3 to fix the vibration motor 3. [ Therefore, since the vibration motor mounting groove 531 is formed to coincide with the external shape of the vibration motor 3, vibration of the vibration motor 3 is transmitted to the toothbrush head unit 700 without loss.

 It is preferable that the vibration motor fixing portion 530 is disposed adjacent to the toothbrush head portion 700 so that the vibration of the vibration motor 3 is efficiently transmitted to the toothbrush head portion 700.

The toothbrush head portion 700 is coupled to the connecting member 300. And, as shown in Fig. 3, the toothbrush head portion 700 has bristles for cleaning the teeth.

4, the toothbrush head unit 700 includes an insertion groove 710 formed at the rear end thereof. In the insertion groove 710, a second female screw portion 340 of the connection member 300 And is fastened to the second male screw portion 340 in a threaded manner.

The top cap 800 covers the toothbrush head portion 700. An annular groove is formed in the inner peripheral surface of the upper cap 800 along the inner circumferential surface of the upper cap 800. The groove is engaged with the projection line 370 of the connecting member body 310 in a fitting manner. Here, the upper cap 800 may be made of a transparent material.

It should be understood that the various embodiments according to the present invention can solve various technical problems other than those mentioned in the specification in the related technical field as well as the related art.

The present invention has been described with reference to the embodiments. It will be apparent, however, to one skilled in the art that the present invention may be embodied in various other forms without departing from the spirit or essential characteristics thereof. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. That is, the true technical scope of the present invention is indicated in the appended claims, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

1: A vibrating toothbrush having a threaded engagement structure according to the present invention
2: Battery 3: Vibration motor
100, 100a: Lower cap 110: First hollow groove
300, 300a: connecting member 400: switch
500: Carrier 600: PCB
700, 700a: toothbrush head part 800: upper cap

Claims (5)

A lower cap having a receiving space formed therein and having a first female thread portion having an inner diameter threaded;
And a second female screw portion having an insertion groove and a thread formed on an inner diameter of the insertion groove;
And a connecting member having a connecting member body and a connecting member having a first male thread portion and a second male thread portion protruding from both longitudinal ends of the connecting member body and having threads formed on an outer circumferential surface thereof,
Wherein the first female threaded portion and the first male threaded portion, and the second female threaded portion and the second male threaded portion are fastened in a threaded manner. The method according to claim 1,
The axial cross-
Wherein the second threaded portion is a right triangle in which an oblique surface is formed in a direction opposite to the insertion direction of the first threaded portion or the second threaded portion. 3. The method of claim 2,
Wherein when the force is applied in a direction in which the lower cap or the toothbrush head portion and the connecting member are spaced apart from each other, the vertical surface includes the first female screw portion or the second male screw portion 2. The vibrating toothbrush of claim 1, wherein the female screw portion is supported to be detached. 4. The method according to any one of claims 1 to 3,
An engaging groove formed at a side edge of the lower cap and the toothbrush head in the engaging direction;
Further comprising latching protrusions formed at both side edges of the connecting member so as to be engaged with the latching grooves when the lower cap and the toothbrush head unit are coupled with the connecting member. 4. The method according to any one of claims 1 to 3,
A fitting projection formed to protrude from a side end of the lower cap and the toothbrush head in a direction of insertion of the thread formed on the inner circumferential surface of the head;
Further comprising a fitting groove formed in an outer circumferential surface of the connecting member so as to be engaged with the fitting protrusion.
KR1020130052145A 2013-05-08 2013-05-08 Vibrating toothbrush having a screw-combined structure KR102037888B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130052145A KR102037888B1 (en) 2013-05-08 2013-05-08 Vibrating toothbrush having a screw-combined structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130052145A KR102037888B1 (en) 2013-05-08 2013-05-08 Vibrating toothbrush having a screw-combined structure

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KR20140132637A true KR20140132637A (en) 2014-11-18
KR102037888B1 KR102037888B1 (en) 2019-10-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200482663Y1 (en) * 2015-09-03 2017-02-17 박성수 Toothbrush with LED
WO2022255857A1 (en) * 2021-05-31 2022-12-08 Joo Koi Lai A vibrational oral care apparatus with improved safety feature

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200300272Y1 (en) * 2002-09-09 2003-01-14 용 배 최 Tube-receptacle stupid the setting front position
JP2003072797A (en) * 2001-08-29 2003-03-12 Shirouma Science Co Ltd Inside plug removing cap device with tamper evident ring
US20050273953A1 (en) * 2002-09-13 2005-12-15 Chan John G Toothbrushes with a replaceable head having a threaded connection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003072797A (en) * 2001-08-29 2003-03-12 Shirouma Science Co Ltd Inside plug removing cap device with tamper evident ring
KR200300272Y1 (en) * 2002-09-09 2003-01-14 용 배 최 Tube-receptacle stupid the setting front position
US20050273953A1 (en) * 2002-09-13 2005-12-15 Chan John G Toothbrushes with a replaceable head having a threaded connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200482663Y1 (en) * 2015-09-03 2017-02-17 박성수 Toothbrush with LED
WO2022255857A1 (en) * 2021-05-31 2022-12-08 Joo Koi Lai A vibrational oral care apparatus with improved safety feature

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