KR20140132636A - Vibrating toothbrush having a coupling member Manufactured by double injection molding type - Google Patents

Vibrating toothbrush having a coupling member Manufactured by double injection molding type Download PDF

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Publication number
KR20140132636A
KR20140132636A KR1020130052142A KR20130052142A KR20140132636A KR 20140132636 A KR20140132636 A KR 20140132636A KR 1020130052142 A KR1020130052142 A KR 1020130052142A KR 20130052142 A KR20130052142 A KR 20130052142A KR 20140132636 A KR20140132636 A KR 20140132636A
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KR
South Korea
Prior art keywords
connecting member
insertion portion
toothbrush
coupling member
groove
Prior art date
Application number
KR1020130052142A
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Korean (ko)
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KR102037887B1 (en
Inventor
김성진
박미정
하원호
이인호
이상민
Original Assignee
주식회사 엘지생활건강
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Priority to KR1020130052142A priority Critical patent/KR102037887B1/en
Publication of KR20140132636A publication Critical patent/KR20140132636A/en
Application granted granted Critical
Publication of KR102037887B1 publication Critical patent/KR102037887B1/en

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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/005—Preparing, i.e. Manufacturing brush bodies by moulding or casting a body around bristles or tufts of bristles
    • 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)

Abstract

A vibrating toothbrush of the present invention includes a coupling member of which one side is coupled with a lower cap having a first hollow groove to form an accommodation space and the other side is coupled with a toothbrush head having an insertion groove. The coupling member includes a coupling member body; a first insertion part protruding from one side of the coupling member body and coupled to the first hollow groove in a fitting manner; and a second insertion part protruding from the other side of the coupling member body and coupled to the insertion groove in a fitting manner. An elastic member for preventing the inflow of foreign materials is formed on an outer circumferential surface of at least one of the first insertion part and the second insertion part. The elastic member is formed integrally with the outer circumferential surface of the first insertion part or the second insertion part by a double injection molding method. Since the coupling member is manufactured by a double injection molding method in which two kinds of materials are sequentially injection-molded in a mold, the manufacturing process can be simplified and thus the production cost can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vibrating toothbrush having a coupling member manufactured by a double injection method,

The present invention relates to a vibrating toothbrush. And more particularly, to a vibrating toothbrush having a connecting member made by a dual injection method, which connects a toothbrush head to a vibrating toothbrush body and transmits vibrations formed in 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.

Disclosure of the Invention The present invention has been made to solve the above-described problems of the prior art and to provide a double injection system in which the possibility of fatigue fracture is minimized by minimizing fatigue accumulation due to radial impact while maintaining the connection between the toothbrush head and the toothbrush body And an object of the present invention is to provide a vibrating toothbrush provided with a connecting member.

It is another object of the present invention to provide a vibrating toothbrush having a connecting member made by a double injection method which enables a cost reduction through a simple manufacturing process by a dual injection molding method.

According to the present invention, there is provided a vibrating toothbrush comprising: a vibrating toothbrush having one side coupled to a lower cap having a first hollow groove therein and a coupling member coupled to a toothbrush head having an insertion groove on the other side; Wherein the connecting member comprises: a connecting member main body; A first insertion portion protruding from one side of the connecting member main body and fittingly engaged with the first hollow groove; And a second inserting portion protruding from the other side of the connecting member main body and engagingly engaging with the inserting groove, wherein foreign matter is introduced into the outer circumferential face of at least one of the first inserting portion and the second inserting portion Wherein the elastic member is integrally formed on the outer circumferential surface of the first insertion portion or the second insertion portion by a double injection molding method, Is accomplished by a vibrating toothbrush.

Here, the elastic member may be formed at both ends of the first insertion portion or the second insertion portion.

The vibrating toothbrush includes a connecting member which is coupled to a lower cap having a first hollow groove so as to have a receiving space therein and a toothbrush head portion having an insertion groove on the other side, A connecting member body; A first insertion portion protruding from one side of the connecting member main body and fittingly engaged with the first hollow groove; A second inserting part protruding from the other side of the connecting member main body and fittingly engaged with the inserting groove; A bent surface formed by a difference in diameter between each of the first insertion portion and the second insertion portion and the main body of the connecting member; Wherein the elastic member is formed integrally with the bent surface by a double injection molding method, and the elastic member is formed on the bent surface to prevent foreign matter from entering the elastic member. The present invention can be achieved by a vibrating toothbrush.

The elastic member may be formed of a material having a coefficient of friction different from that of each of the lower cap or the toothbrush head.

Further, the elastic member is formed of a material having an elastic restoring force.

In addition, when the lower cap or the toothbrush head part and the connection member are coupled, a vertical drag force of the frictional force is generated by the resilient restoring force of the pressed elastic member.

Since the vibrating toothbrush having the connecting member manufactured by the double injection method according to the present invention having the above-described structure is manufactured by the double injection molding method in which the two kinds of materials are sequentially injection-molded in the mold, The process can be simplified and cost reduction is possible.

In addition, if the mold is formed by the dual injection molding method, there is no gap, thereby preventing the introduction of external foreign substances and reducing the number of surface parts.

1 is a cross-sectional view of a conventional vibrating toothbrush,
FIG. 2 is a perspective view of a vibrating toothbrush having a connecting member made by a double injection method according to the present invention,
3 is an exploded perspective view showing a vibrating toothbrush having a connecting member made by a double injection method according to the present invention,
Figure 4 is a cross-sectional view of a vibrating toothbrush with a connecting member made in a dual injection system in accordance with the present invention,
5 is a view showing an embodiment of a connecting member according to the present invention,
6 is a view showing another embodiment of the connecting member according to the present invention.

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 connecting member manufactured by a double injection method according to the present invention will be described.

2 to 6, the vibrating toothbrush 1 having the connection member manufactured by the dual injection method according to the present invention includes a lower cap 100, a connection member 300 coupled to the lower cap 100, A carrier 500 inserted into the lower cap 100 and the connecting member 300 and a toothbrush head unit 700 having an insertion groove 710 coupled to the connecting member 300 and a toothbrush head unit 700, And an upper cap 800 covering the upper cap 800.

The lower cap 100 includes a first hollow groove 110 and an engaging portion 120 having an opening formed at one side thereof, that is, an inlet is opened to be coupled with the connecting member 300, .

As shown in FIGS. 3 to 4, the coupling part 120 is formed to match the shape of the coupling member 300 and is fastened to one end of the coupling member 300 in a fitting manner.

2 to 6, the connecting members 300a, 300b, and 300c may include a second hollow groove 310, a connecting member body 320, a first insertion portion 330, a second insertion portion 340, an elastic member 350, a through hole 360, a projection line 370, and a protruding lid 380.

Hereinafter, the main components of the connecting members 300a, 300b and 300c are denoted by the same reference numerals, and the connecting member 300a, which is an embodiment of the present invention, will be described with reference to FIG. 3 to FIG. In the following description of the connecting members 300a, 300b and 300c, the same reference numerals are used to designate the same or similar parts in different parts (for example, the connecting member 300b and the connecting member 300c) Of course.

The connecting member 300a includes a second hollow groove 310 formed at one side thereof with a receiving space formed therein and the second hollow groove 310 communicating with the first hollow groove 110 Space.

4, when the lower cap 100 and the connecting member 300a 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 insertion portion 330 and the second insertion portion 340 are formed to protrude from both ends of the connecting member body 320 in the axial direction and the first insertion portion 330 is engaged with the coupling portion 120, . The second insertion portion 340 is fastened to the insertion groove 710 of the toothbrush head portion 700.

4, the elastic member 350 may be formed to protrude in the radial direction on the outer surfaces of the first insertion portion 330 and the second insertion portion 340, respectively. Here, the elastic member 350 may be formed of a soft material having elastic restoring force such as a silicon material or a synthetic rubber. Accordingly, the elastic member 350 can have an elastic restoring force.

Therefore, when the lower cap 100 or the toothbrush head unit 700 and the connecting member 300 are coupled, a vertical reaction force due to an elastic restoring force is formed on the elastic member 350 pressed by the engagement by the fitting method .

A vertical drag due to the elastic restoring force is generated between the inner circumferential surface of the engaging portion 110 of the elastic member 350 and the lower cap 100 or the inner circumferential surface of the insertion groove 710 of the toothbrush head portion 700, Drag is the main force of frictional force.

Therefore, the engagement of the lower cap 100 or the toothbrush head portion 700 with the connecting member 300 prevents the rotation or the disengagement of the engagement in an arbitrary direction by the frictional force.

That is, since the elastic member 350 is formed of the soft material as described above, it is possible to prevent the flow between the lower cap 100 and the toothbrush head unit 700 and the connecting member 300a.

Since the elastic member 350 may be formed of a material having a friction coefficient different from that of the lower cap 100, the toothbrush head unit 700 and the connecting member 300a, the lower cap 100 and the toothbrush head unit 700 And the coupling member 300 are not only firmly coupled but also can be prevented from rotating arbitrarily.

The connecting member 300a and the elastic member 350 may be formed by a double injection molding method in which two kinds of materials are sequentially injection-molded in a mold.

Accordingly, in the case of manufacturing by the dual injection molding method, since the combination of the materials is performed in the mold, the manufacturing process of manufacturing the connecting member 300 can be simplified, and cost reduction is possible. Since the elastic member 350 is formed integrally with the connection member 300a by the double injection molding method, there is no gap and the efficiency of preventing foreign foreign matter from entering is high.

That is, since the elastic member 350 of the connection member 300a is formed by the double injection molding method, the gap between the first insertion portion 330 and the second insertion portion 340 and the elastic member 350 is removed Thereby preventing external foreign matter from entering and further reducing the number of surface parts.

The elastic member 350 is formed at the end of the insertion direction of the first insertion part 330 and the second insertion part 340 in order to increase the efficiency for preventing liquids such as water from penetrating into the gap .

5, the connecting member 300b is provided with double elastic members (not shown) at both ends of the first insertion portion 330 and the second insertion portion 340 for preventing the inflow of perfect foreign substances and for firm connection. 350 may be formed.

The connecting member 300 may include a bent surface 321 formed by a difference in diameter between the first insertion portion 330 and the second insertion portion 340 and the connecting member main body 320.

6, the elastic member 350 is formed on the curved surface 321 so that a gap is formed between each of the lower cap 100 and the toothbrush head portion 700 and the connecting member 300 It is possible to secure the coupling.

However, since the elastic member 350 formed on the folded surface 321 has an advantage of preventing foreign matter from entering into the gap at an early stage, there is no advantage to apply frictional force in the insertion direction, And the elastic member formed on the outer circumferential surface of each of the first insertion portion 330 and the second insertion portion 340.

4, the through hole 360 is formed at one side of the outer circumferential surface of the connecting member body 320 so as to communicate with the outside in order 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 connecting member manufactured by the double injection method 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 320. As shown in FIG. 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, and a vibration motor fixing portion 530.

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. [ As shown in FIG. 3, the battery mounting groove 511 is formed long along the longitudinal direction of the carrier 500.

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. The toothbrush head unit 700 includes 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, the second insertion portion 340 of the connection member 300 is inserted into the insertion groove 710 And is fastened in a fitting 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 connection member made in accordance with the present invention in a double injection system
2: Battery 3: Vibration motor
100: Lower cap 110: First hollow groove
300a, 300b, 300c: connecting member 400: switch
500: Carrier 600: PCB
700: toothbrush head part 800: upper cap

Claims (4)

A vibrating toothbrush comprising: a coupling member coupled to a lower cap having a first hollow groove to define a receiving space therein; and a coupling member coupled to a toothbrush head having an insertion groove on the other side,
The connecting member
A connecting member body;
A first insertion portion protruding from one side of the connecting member main body and fittingly engaged with the first hollow groove;
And a second insertion portion formed to protrude from the other side of the connecting member body and to be fitted to the insertion groove in a fitting manner,
An elastic member for preventing foreign matter from entering the outer peripheral surface of at least one of the first insertion portion and the second insertion portion is formed,
Wherein the elastic member is integrally formed on an outer peripheral surface of the first insertion portion or the second insertion portion by a double injection molding method. The method according to claim 1,
Wherein the elastic member is formed at both ends of the first insertion portion or the second insertion portion, and the connection member is made by a double injection method. A vibrating toothbrush comprising: a coupling member coupled to a lower cap having a first hollow groove to define a receiving space therein; and a coupling member coupled to a toothbrush head having an insertion groove on the other side,
The connecting member
A connecting member body;
A first insertion portion protruding from one side of the connecting member main body and fittingly engaged with the first hollow groove;
A second inserting part protruding from the other side of the connecting member main body and fittingly engaged with the inserting groove;
A bent surface formed by a difference in diameter between each of the first insertion portion and the second insertion portion and the main body of the connecting member;
And an elastic member formed on the bent surface to prevent foreign matter from entering,
Wherein the elastic member is integrally formed with the bent surface by a double injection molding method. 4. The method according to any one of claims 1 to 3,
Wherein the elastic member is formed of a material having a friction coefficient different from that of each of the lower cap or the toothbrush head portion.
KR1020130052142A 2013-05-08 2013-05-08 Vibrating toothbrush having a coupling member Manufactured by double injection molding type KR102037887B1 (en)

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KR1020130052142A KR102037887B1 (en) 2013-05-08 2013-05-08 Vibrating toothbrush having a coupling member Manufactured by double injection molding type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130052142A KR102037887B1 (en) 2013-05-08 2013-05-08 Vibrating toothbrush having a coupling member Manufactured by double injection molding type

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KR20140132636A true KR20140132636A (en) 2014-11-18
KR102037887B1 KR102037887B1 (en) 2019-10-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023068831A1 (en) * 2021-10-20 2023-04-27 주식회사 아이투씨브릿지 Brushing guide elastic toothbrush and elastic restoration mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413199A (en) * 1979-02-05 1983-11-01 Trisa Burstenfabrik Ag Electrical tooth cleaner apparatus
JP2008080099A (en) * 2006-08-29 2008-04-10 Omron Healthcare Co Ltd Electric toothbrush
US20100199445A1 (en) * 2007-04-23 2010-08-12 Ole Barman Electric toothbrush

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413199A (en) * 1979-02-05 1983-11-01 Trisa Burstenfabrik Ag Electrical tooth cleaner apparatus
JP2008080099A (en) * 2006-08-29 2008-04-10 Omron Healthcare Co Ltd Electric toothbrush
US20100199445A1 (en) * 2007-04-23 2010-08-12 Ole Barman Electric toothbrush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023068831A1 (en) * 2021-10-20 2023-04-27 주식회사 아이투씨브릿지 Brushing guide elastic toothbrush and elastic restoration mechanism

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