KR19980087585A - Toothbrush with fixed extrusion structure - Google Patents

Abstract

The present invention realizes the quantitative extrusion function of the toothpaste, the anti-rotation function of the turner, the automatic opening and closing function of the toothpaste extruder, the refilling function of the toothpaste and the toothbrush head as a whole, slim and compact, beautiful appearance design, built-in multiple toothpaste Toothpaste is easy to discharge a certain amount of toothpaste, and a toothbrush having a high-quantity extrusion structure of disassembly / assembly of refill toothpaste and refill toothbrush head and high productivity.

The present invention provides a refillable toothbrush head having an inner passage extending from the rear end to one side of the toothbrush head, and the front end of which is detachably coupled to the refillable toothbrush head, and the toothpaste embedded therein is quantitatively extruded into the refillable toothbrush head. Consists of a body, the body is a front end is coupled to the rear end of the refilling toothbrush head and the outer end having an annular plate at the rear end, it is built to prevent rotation in the inner cylinder, and the toothpaste embedded therein to the front end Refillable toothpaste container refillable with a toothpaste extruding means for; and a turner rotatably coupled to the rear end of the outer cylinder and driven to rotate according to the user's operation, by limiting the rotation of the turner by a certain rotation angle As a quantitative extrusion means for quantitatively controlling the extrusion amount of the toothpaste by driving the toothpaste extruding means according to one click rotation of the turner. It is characterized in that the configuration.

Description

Toothbrush with fixed extrusion structure

The present invention relates to a toothbrush having a quantitative extrusion structure, in particular, to realize the quantitative extrusion function of the toothpaste, the anti-rotation of the turner, the automatic opening and closing function of the toothpaste extruder, the refilling function of the toothpaste barrel and the toothbrush head, while compact in overall slim type The present invention relates to a toothbrush having a beautiful exterior design, easy to discharge a certain amount of toothpaste with a built-in toothpaste, disassembly / assembly of a refillable toothpaste and a refillable toothbrush head, and a highly productive quantitative extrusion structure.

In general, after ingestion, a portion of the food is sandwiched between the interdental and fine food residues remain in the tongue oral cavity in the oral cavity. Therefore, it is recommended to brush your teeth within 3 minutes if you consume food or drinks. The purpose of this brushing is to prevent food residues from remaining inside and outside the occlusal surface and, more precisely, to remove plaque, a colorless membrane that sticks between teeth and gums.

However, when looking at these brushing habits, most people brush their teeth with a lot of toothpaste on the surface of the toothbrush.In this case, the toothpaste on the surface of the toothbrush is mixed with saliva or water, and bubbles form at once. It is common for the foam to fill up and spit out before the brush is finished. In this case, children, especially children who don't like to brush their teeth, will spit out even a little foam in their mouths.

Therefore, in order to brush your teeth effectively, you have to spend about 3 minutes to brush your teeth every 3 minutes after eating, so deeply apply the toothpaste to your toothbrush, and while you brush your teeth, the toothpaste on your toothbrush will slowly melt from the top and be discharged to the end of your toothbrush. It is desirable to. Therefore, there is a need for a new method or device for automatically dissolving toothpaste slowly.

On the other hand, the proper amount of toothpaste is known to be about 0.4g at a time, but due to the influence of excessive toothpaste advertisement through the mass media of toothpaste companies, the amount of toothpaste is actually many times higher than this. This is wasted. Therefore, there is a need for a method or apparatus for inducing only an appropriate amount to be used at a time.

Moreover, when using the proper amount, it is necessary to use the toothpaste deeply buried in the toothbrush, but since it is not easy to keep it, it is necessary to use a new method to induce it to be automatically or compulsory.

In addition, in the past, a number of toothpaste-type toothbrushes that can be easily carried by incorporating toothpaste in the toothbrush as a portable toothbrush or a disposable toothbrush at the time of travel have been proposed.

First of all, the toothpaste-type toothbrush shown in Korean Patent Registration No. 78348 has a large bristle body and a large elasticity of the neck part due to securing a space for accommodating toothpaste and a linear sliding structure for toothpaste extrusion. It has a structure that is difficult to recharge. Moreover, the above-described structure has a problem in that the toothbrush is worn out for a certain period of time, so that replacement of the bristles is impossible and the life is short.

In addition, there are a number of conventional technologies in addition to the above-described prior art, but a structure that can simultaneously solve the above-described various problems has not been proposed.

For example, portable toothbrushes such as JP 96-26583 (portable toothbrushes with writing instruments and toothpaste) and JP 95-267 (portable toothbrushes with toothpaste compartments) are simply compacted with toothpaste in one case. To store or embed the toothpaste in the body, the toothbrush head can be removed and the toothpaste can be buried and reassembled.

In addition, the technology for extruding toothpaste by pressing the user's hand according to the driving source for extruding toothpaste is Utility Model Publication No. 94-6414, the technology using air tube and air tube pump is applied to Utility Model Publication No. 95-266, restoring force of compression spring. The technique used is disclosed in Utility Model Publication No. 95-265.

This prior art also has a structure that is difficult to use a proper amount of toothpaste and difficult to refill toothpaste or refill the brush head.

Utility Model Publication No. 94-14371 discloses a toothpaste extruder of a toothbrush. This technique is to guide the elliptical extrusion ring 5 in a straight line to the inner diameter of the housing 3 as shown in FIGS. 1A and 1B. The elliptical inner peripheral surface 7 is formed, and the extrusion ring 5 has the structure which moves back and forth in the cavity 13 through the shaft 11 according to the rotation of the turner 9.

However, this prior art does not have a refill structure for the toothpaste, and the refill toothbrush head 1 has a structure in which the toothbrush hair 15 is integrally formed, and thus the mass production is very low, and quantitative extrusion is not performed. .

Moreover, in the conventional toothpaste extrusion structure by turning the turner, there is no means to prevent the reverse rotation of the turner, so the repulsive force against the pressure of the toothpaste acts on the piston (or extrusion ring) to hold the turner. If you remove the turner to reverse the piston occurs a problem. That is, when the toothbrush is used again afterwards, it is difficult to extrude quantitatively in the operation of advancing the reversed piston again to extrude a certain amount of toothpaste.

In addition, it is required to brush teeth within 3 minutes after meals for effective dental health and bad breath removal, but the conventional toothpaste-type toothbrush with a portable port does not have a slim / compact shape as a whole and the amount of embedded toothpaste was small as 1-2 times. All. Therefore, sales workers or office workers who need to eat out frequently, especially women, want a product that is easy to use and can be carried with simple cosmetics such as a simple handbag or purse without feeling the economic burden. No satisfactory practical product has been proposed.

Accordingly, the present invention has been made in view of the problems of the prior art, and an object thereof is to provide a toothbrush having a quantitative extrusion structure capable of preventing the reverse rotation of the turner at the same time as quantitative extrusion of the toothpaste according to the turn of the turner creek. .

Another object of the present invention is to include a refill toothpaste with a toothpaste extrusion structure and a mass production refill toothbrush head with a built-in toothpaste extruded structure, the overall slim compact type, beautiful appearance design, very easy to disassemble / assemble It is to provide a toothbrush having a quantitative extrusion structure that can be made practical.

Still another object of the present invention is to provide a toothbrush with an automatic opening and closing device which can prevent contamination of toothpaste.

1A and 1B are cross-sectional views and A-A cross-sectional views showing a toothbrush containing a conventional toothpaste,

2 is a longitudinal cross-sectional view of a toothbrush having a long-term extrusion structure and a refill toothpaste and a refill toothbrush head according to a first embodiment of the present invention;

3a and 3b are side and enlarged front views of the turner,

4A-3C are cross-sectional views, side views, and a cross-sectional view taken along line A-A of FIG. 4A;

5 is a side view of the drive screw,

6A-6C are side, sectional and enlarged front views of the piston,

7a and 7b is a side cross-sectional view and an enlarged front view of the refill toothpaste,

8A and 8B are side cross-sectional and front views of the refill toothpaste cap,

9 is a cross-sectional view of the refill toothpaste container according to the present invention

10A and 10B are a plan view and a sectional view taken along line B-B showing a first example of the refilled toothbrush head with the brush head removed;

11A and 11B are exploded cross-sectional views and an assembled cross-sectional view showing a second example of the refill toothbrush head;

12 is a longitudinal cross-sectional view of a toothbrush having a fixed quantity extrusion structure and a refill toothpaste and a refill toothbrush head according to a second embodiment of the present invention;

13A to 13C are enlarged exploded cross-sectional views, an enlarged assembled cross-sectional view of a first example showing the quantitative extrusion structure of FIG. 12, and a rotation stopper plate in FIG. 13A;

14 is an enlarged cross-sectional view of a second example showing a quantitative extrusion structure of FIG.

(Code description for main part of drawing)

20; Refill toothbrush head 22; Extruder

22a; Tip 24; Brush head

26; Internal passage 28; Rear end

30; Body 32,132; External

32a-32c; Guide protrusion 34; Through hole

36a-36d; Mating grooves 38,138,238; Annular plate

50; Refill toothpaste 50a, 50b, 54a-54c; Guide groove

51a-51c; Guide protrusion 52; Drive screw

53; Coupler 53a; Combined groove

54,154; Piston 54d; Screw groove

55; Sealing caps 70,170,270; Turner

72,172; Axis of rotation 72a; Tip

72b; Rear end 74; spin

76; Uneven portion 78; Jam

80; Cap 100100a; Brush head

102; Coupling protrusion 104; Guide groove

120,120a; Toothbrush head body 122; Accommodation home

122a-122c; Guide groove 124; Combined groove

126; Return spring 128; switch

128a; Grooves 138a, 238a; Combined boss

156; Outer periphery 158; Annular groove

160; Anti-rotation plate 162; Quantitative setting projection

164; Engaging holes 174,274; Reverse rotation prevention protrusion

200; Elastic spring

In order to achieve the above object, the present invention is a refill toothbrush head with an inner passage extending from the rear end to one side of the toothbrush is formed, and the front end is detachably coupled to the refill toothbrush head and the toothpaste embedded therein It is composed of a body for quantitatively extruding with the refill toothbrush head, the body is coupled to the rear end of the refill toothbrush head and the outer cylinder having an annular plate at the rear end, and is built to prevent rotation inside the outer cylinder, A refillable toothpaste container refill containing a toothpaste extruding means for extruding the built-in toothpaste to the front end, a turner rotatably coupled to the rear end of the outer cylinder and driven to rotate according to the user's operation, and the rotation of the turner The amount of extrusion of the toothpaste is determined by driving the toothpaste extruding means according to the 1-click rotation of the turner by limiting by a predetermined rotation angle. It provides a toothbrush having a quantitative extrusion function, characterized in that consisting of a quantitative extrusion means for controlling.

Here, the toothpaste refill is provided with a fixed coupling means for preventing rotation by engaging with the inner cylinder to the outer peripheral portion and toothpaste is embedded therein, the rear end is connected to the turner in the correct position according to the rotation of the turner The rotating screw and the piston for advancing the toothpaste to the refill toothbrush head by advancing in accordance with the rotational drive of the drive screw.

The toothpaste extruding means is a piston removably embedded along a plurality of guide protrusions formed in the inner circumference of the refill, and the rear end is refilled from the rear end such that the rear end is rotatably snapped to the rear end of the refill and advances the piston back and forth. Characterized in that consisting of a drive screw extending to the front end of the.

The quantitative extrusion means has at least one coupling protrusion projecting in a radial direction on the front of the turner, a plurality of coupling grooves are formed radially on the rear surface of the annular plate and coupled to the coupling protrusion whenever the turner is rotated by a predetermined angle; And a rotating shaft extending from the turner and connected to the toothpaste extruding means and transmitting a rotational force of the turner, and a coupling means installed in the middle of the rotating shaft to close the turner to the annular plate. At the time of rotation, the turner is elastically deformed until the engagement protrusion engages with the next coupling recess to limit the rotation of the turner by 1 click to quantitatively control the extrusion amount of the toothpaste.

In addition, the quantitative extrusion means has a plurality of coupling protrusions protruding on the same circumference on the front of the turner, and a plurality of couplings are formed on the same circumference on the back of the annular plate and coupled to the coupling protrusion whenever the turner is rotated by a predetermined angle. Consists of a groove, extending from the turner is connected to the toothpaste extruding means and the rotating shaft for transmitting the rotational force of the turner, the coupling means is installed in the middle of the rotating shaft to close the turner to the annular plate, According to the rotation of the turner, the turner is elastically deformed until the engagement protrusion in the engaged state is coupled to the next coupling recess, thereby limiting the rotation of the turner by one click to quantitatively control the extrusion amount of the toothpaste.

Further, the fixed quantity extrusion means is projected at equal intervals on the same circumference on the front of the turner and at least one reverse rotation preventing projection inclined in the rotational direction, disposed on the front of the turner and opposite to the reverse rotation prevention projection on the back The anti-rotation plate is formed integrally at regular intervals at a predetermined interval on the same circumference as a shape of the anti-rotation plate, and protruded as a two-stage bending structure to maintain a predetermined interval with the annular plate to prevent rotation of the anti-rotation plate A coupling boss for extending, a rotary shaft extending from the turner to the toothpaste extruding means and transmitting a rotational force of the turner, and a coupling means installed in the middle of the rotary shaft to close the turner to the anti-rotation plate. When the turner is rotated, the reverse projection preventing projection is the next fixed amount set projection Until it is combined with the anti-rotation plate is elastically deformed to limit the rotation of the turner by 1 click to quantitatively control the extrusion amount of the toothpaste.

The reverse rotation preventing projection is made of a right triangle, and the fixed quantity setting projection is made of a right triangle having a vertical side opposite to the vertical side of the right triangle when the turner is rotated to prevent the reverse rotation of the turner.

In addition, the fixed quantity extrusion means protrude at equal intervals on the same circumference on the front of the turner and a plurality of anti-rotation preventing projections inclined in the rotational direction, and disposed on the front of the turner and opposite to the reverse rotation preventing projections on the rear surface. As a plurality of quantitatively set projections on the same circumference as a rotation prevention plate integrally formed at regular intervals, the engaging boss for protruding from the annular plate to prevent rotation of the rotation prevention plate, and the tip portion extending from the turner A rotation shaft connected to the toothpaste extruding means and configured to transmit a rotational force of the turner, a coupling means installed between the rotation shaft and the rear end of the outer cylinder, and disposed between the rotation preventing plate and the annular plate; It consists of an elastic spring to close the anti-rotation plate to the turner, in this case the turner At the time of rotation, the anti-rotation plate elastically displaces the anti-rotation plate until it engages with the next fixed quantity setting protrusion to limit the rotation of the turner by 1 click to quantitatively control the extrusion amount of the toothpaste and the turner Reverse rotation of can be prevented.

On the other hand, the refill toothbrush head has an inner passage extending from the rear end to the front end and the toothbrush head body formed with a receiving groove at the front end, and at least one extruded port that the outer periphery is press-bonded to the receiving groove and communicate with the inner passage. It may have a bristle head having a plurality of bristles on the outer surface.

In response to the pressure of the toothpaste extruded in accordance with the rotation of the turner, the inner passage and the extrusion port is connected in communication, and stops the rotation of the turner further includes an automatic opening and closing device for blocking the inner passage leakage of unnecessary toothpaste It can prevent the hardening and contamination of toothpaste.

The automatic opening and closing device is a cylindrical groove formed from the lower end of the extrusion port to the junction of the receiving groove and the brush head of the toothbrush head body, a return spring provided at the front end of the groove, and the extrusion when the normal state by the return spring Blocking the lower part of the sphere is composed of a switch that connects the inner passage and the extrusion port according to the pressure of the toothpaste.

In this case, the distal end of the extruder forms a structure narrowed according to the height of the protrusion, and when the extruded height of the extruder is set to about 1/3 of the height of the bristles, the toothpaste can be prevented from remaining in the toothbrush.

According to another feature of the present invention, a refill toothbrush head having an inner passage extending from the rear end to one side of the toothbrush formed with an outer passage, an outer cylinder having an annular plate coupled to the rear end of the refill toothbrush head, and having an annular plate at the rear end thereof; It is embedded to prevent rotation inside the outer cylinder, a toothpaste refill capable of refilling toothpaste extruding means for extruding the toothpaste embedded in the inner cylinder, and rotatably coupled to the rear end of the outer cylinder to the user's operation The rotary drive is driven accordingly, and the rotation of the turner is limited by a predetermined rotation angle to drive the toothpaste extruding means according to the one-click rotation of the turner to quantitatively control the extrusion amount of the toothpaste and to block the reverse rotation. To provide a toothbrush having a quantitative extrusion function, characterized in that consisting of a quantitative extrusion means for.

As described above, in the present invention, the refill toothpaste can be used and the head can be replaced and the body can be used semi-permanently, and the turner can be rotated by one creek so that the fine adjustment and the appropriate amount of quantitative toothpaste can be easily prevented and the reverse rotation is prevented. It can reduce unnecessary waste of toothpaste, and can prevent contamination of toothpaste by automatic switchgear.

In addition, it is excellent in portability because it can realize slim compact appearance while embedding toothpaste extrusion structure. Moreover, it is easy to disassemble / assemble the refill toothbrush head and body, so it is easy to replace toothpaste and high productivity.

(Example)

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

2 is a longitudinal cross-sectional view of a toothbrush having a refill toothpaste and a refill toothbrush head according to the first preferred embodiment of the present invention, FIGS. 3A and 3B are side and enlarged front views of the turner, and FIGS. 4A to 3C are Sectional view, side view, and AA line view of Fig. 4A, Fig. 5 is a side view of the drive screw, Figs. 6A-6C are side views, side cross-sectional and enlarged front views of the piston, and Figs. 7A and 7B are side cross-sectional views of the refill toothpaste. And an enlarged front view, FIGS. 8A and 8B are side cross-sectional and front views of the refill toothpaste cap, FIG. 9 is a cross-sectional view of the refill toothpaste according to the present invention, and FIGS. 10A and 10B are refilled toothbrush heads with a brushed hair removal state. 11A and 11B are exploded and assembled cross-sectional views showing a second embodiment of the refill toothbrush head.

First, referring to FIGS. 2 and 9, the toothpaste-type toothbrush having the toothpaste extrusion structure according to the first preferred embodiment of the present invention is largely divided, and the bristles 24 are formed on one side, and the bristles of the front end from the rear end ( 24 is a toothpaste extrusion structure for extruding the toothbrush embedded in the refill toothbrush head 20 is formed between the inner passageway 26 and the refill toothbrush head 20 to the extrusion port 22 of the toothbrush head 20. Consists of a built-in body (30).

In addition, the bristles 24 are arranged in the head 20 in combination of 2-4 of the bristles, and in order to facilitate the use as a portable to the head to prevent dust and the like to accumulate on the bristles 24 at the tip and At the same time, the cap 80, which can cover the refill toothbrush head 20, is sealed to prevent the toothpaste remaining in the inner passage 26 of the toothbrush head 20, which will be described later, from being hardened by external dissipation of water. Possibly combined.

The refill toothbrush head 20 may be coupled by any one of screwing, press-fitting, or snap coupling when its rear end 28 is coupled to the inner peripheral portion 32 of the front end side of the body 30.

In addition, the refill toothbrush head 20 is an internal passage for guiding toothpaste from at least one to three extruded holes 22 opened from the rear end 28 to the side of the toothbrush head 24 protruding from the toothbrush head 20 ( 26 is formed, thereby allowing the toothpaste to be extruded from under the bristles 24. The detailed internal structure of the refill toothbrush head 20 will be described later in detail.

On the other hand, the body 30 has an outer cylinder 32, the front end of which is coupled to the rear end 28 of the refill toothbrush head 20, and is inserted into the outer cylinder is mounted, the toothpaste is embedded therein and toothpaste extrusion piston Refillable toothpaste (50) with a built-in and long drive screw (52) for moving the piston and the rear end of the outer cylinder (32) is preferably rotatably coupled to the rear end of the outer cylinder (32). Rotating shaft 72 extending from is coupled to the rear end of the drive screw 52 is composed of a turner 70 for rotating the screw.

Hereinafter, each part will be described in detail with reference to the accompanying drawings.

First, the refill toothpaste 50 has a toothpaste embedded therein as shown in FIGS. 7A, 7B, and 9, and corresponds to the guide protrusions 32a and 32b of the inner circumferential surface of the outer cylinder 32 at the outer circumferential surface. For example, a pair of guide grooves 50a and 50b formed in the longitudinal direction are formed to have a predetermined length, and three rows of guide protrusions 51a to 51c are formed at equal intervals on the inner circumferential surface.

The front end of the refill toothpaste 50 has a kind of packing effect when it is coupled to the inner passage 26 of the refill toothbrush head 20 by rounding the outside to prevent backflow of the toothpaste. In addition, it is preferable that the boundary portion between the rear end portion of the refill toothpaste 50 and the inner circumferential surface is subjected to rounding so as to facilitate the engagement of the piston 54 described later.

The piston 54 coupled to the inside of the refill toothpaste 50 is preferably made of rubber, and three guide grooves 54a-54c corresponding to the three guide protrusions 51a-51c are provided on the outer circumferential surface thereof. A screw groove 54d is formed and screwed with the driving screw 52 on the inner circumferential surface thereof, and at the rear end thereof, the guide groove 51 is formed so as to be assembled with the guide protrusions 51a-51c of the toothpaste container 50 smoothly. The entrances of 54a-54c extend in a V shape.

In addition, the long drive screw 52 coupled to the screw groove 54d of the piston 54 has a coupling hole 53 formed at the rear end thereof, and a rotation shaft 72 of the turner 70 behind the coupling hole 53. Is coupled to the coupling groove (53a) is formed when the user rotates the turner 70 is advanced along the guide projections (51a-51c) of the refill toothpaste (50) to the toothpaste inside the toothpaste (50) Extrude into the refill toothbrush head (20).

In this case, the outer diameter of the coupler 53 is set to have the same diameter as the refill toothpaste 50, and an outer circumferential portion of the coupler 53 is formed with an annular engaging protrusion and corresponding to the inner end of the rear end of the refill toothpaste 50. Coupling grooves are snap-connected with the annular coupling protrusion at the position is formed once has a structure that maintains the coupling state until the coupling port 53 is removed by applying a physical force from the outside.

The piston 54 and the driving screw 52 is assembled to the refill toothpaste 50 and the sealing cap 55 shown in FIGS. 8A and 8B is covered with the toothpaste filled, as shown in FIG. 9. Sold separately as a refill.

In addition, the refill toothpaste 50 can be separated from the back of the piston 54 by using the drive screw 52 so that the toothpaste can be easily recharged and then recombined with the piston 54 and the drive screw 52. It is possible.

On the other hand, the outer cylinder 32 to accommodate the refill toothpaste 50, the front end is opened, as shown in Figure 4a and 4b, the rear end is a through hole 34 through which the rotating shaft 72 of the turner 70 passes in the center And an annular plate 38 formed with four sets of engaging grooves 36a-36d in the radial direction is formed. In addition, the guide protrusions 32a and 32b corresponding to the guide grooves 50a and 50b of the refill toothpaste 50 to prevent the refilling toothpaste 50 from being rotated in a state where the front end 32 of the outer cylinder 32 is coupled. Is formed.

In this case, preferably, at least two or more anti-rotation guide protrusions 32c and grooves may be formed at the rear ends of the outer cylinder and the refill toothpaste cylinder as shown in FIG. 4C. The outer cylinder 32 may have a difference in diameter between the front end portion and the rear end portion so as to form a slightly tapered structure as a whole so that the refill toothpaste barrel 50 may be easily assembled.

3A and 3B, the turner 70 preferably has a structure in which a plurality of uneven parts 76 are formed at the outer circumference thereof, and the protrusion 74 coupled to the coupling grooves 36a to 36d has an annular plate ( It protrudes on the side opposite to 38). In this case, preferably, the engaging grooves 36a-36d and the projections 74 are set eccentrically from the axial direction of the rotation shaft, respectively. In addition, the coupling groove and the projection may be configured as a hemispherical projection and hemispherical groove in addition to the shape arranged in the radial direction.

The rotating shaft 72 extending from the turner 70 forms a quadrangular shape where the front end portion 72a corresponds to the coupling groove 53a of the coupling hole 53, and the rear end portion 72b corresponds to the through hole 34. It forms a circle, and between the front end portion 72a and the rear end 72b is formed larger than the diameter of the through hole 34, but the locking step 78 is gradually reduced in diameter to form a snap coupling.

Therefore, once the turner 70 is coupled to the annular plate 38 of the outer cylinder 32, the separation is prevented by the locking jaw 78, and the protrusion 74 is formed by any one of the coupling recesses 36a-36d. The gap between the locking jaw 78 and the turner 70 is set to maintain the coupled state when coupled to the coupling groove.

However, when the user rotates the turner 70 by applying a little force, the coupling between the protrusion 74 and the coupling recess is released, and when the next coupling recess is reached, the user has a structure of forming the coupled state again.

Therefore, in the above structure, when the user rotates the turner 70, it is possible to rotate by 1 click, so that the amount of toothpaste extruded can be discharged, and the reverse rotation of the turner 70 is prevented. can do.

On the other hand, the refill toothbrush head 20 is composed of the toothbrush head body 120 and the toothbrush head 100 is snap-fitted to the body as shown in Figure 10a and 10b to take into account productivity and assemblability. When is preferable. That is, since the refill toothbrush head 20 should have an inner passage 26 of about 3.5 mm in which toothpaste is transferred therein, the toothbrush head 20 having the inner passage 26 together with the plurality of toothbrushes 24 is provided. Molding of the unitary body entails a very difficult manufacturing process. Therefore, as in the present invention, the toothbrush head 100 and the toothbrush head body 120 are separately produced, and then have a structure of assembling them is an essential requirement in the toothpaste-type toothbrush.

To this end, the bristles head 100 has a bristle 24 is formed in one side and the extrusion hole 22 is formed from the bottom to the bristle forming surface, the lower side of the receiving groove 122 of the toothbrush head body 120 ) And has a tapered shape or a structure having a snap coupling protrusion 102 shown in FIG. 11 to be described later.

In addition, similar to the above, the toothbrush head body 120 has a tapered shape in which the receiving groove 122 is wider inward or lower than the inlet, or the coupling groove 124 for accommodating it in response to the coupling protrusion 102 described above. ) Is formed on the side of the receiving groove (122).

Furthermore, the semi-cylindrical guide groove 122a is further formed at the rear end of the receiving groove 122 connected to the inner passage 26 to smoothly transfer the toothpaste to the lower portion of the extrusion hole 22. A guide groove 104 corresponding to the groove 122a may be formed on the lower surface of the bristle head 100.

Therefore, when the toothbrush head 100 and the toothbrush head body 120 are press-fitted in a snap manner, the toothpaste transferred along the inner passage 26 is discharged to the extrusion hole 22 through the guide recess 122a. The retention coupling between the toothbrush head 100 and the toothbrush head body 120 is prevented from being separated during use and at the same time the pressure of the toothpaste in the process of extruding the toothpaste on the lower surface of the toothbrush head 100. It acts to block the outflow through the side.

In this case, the distal end portion 22a of the extrusion port 22 may have a shape in which the periphery of the hole has a slope gradient and protrudes at a height corresponding to about one third of the length of the bristles 24, like a crater of volcano. .

This protrusion extruded structure is able to prevent the residual toothpaste remaining by the elasticity of the brush head 24. Therefore, the problem that may occur when having a flat extruded structure, that is, if the toothbrush is stopped for 3 minutes without stopping, the remaining residual toothpaste remains on the surface and hardens to prevent the toothpaste from being discharged smoothly at the next toothpaste extrusion. can do.

Another embodiment in which the refill toothbrush head 20 has an automatic opening and closing device for automatically opening and closing the extrusion port is illustrated in FIGS. 11A and 11B.

As shown, the refill toothbrush head 20 is composed of a toothbrush head body 120a and a bristle head 100a that is snap-fitted to the body in a snap manner. To this end, the toothbrush head 100a is a toothbrush. Hair 24 is formed in one side and the extrusion port 22 is formed from the bottom of the toothbrush hair forming surface, the side is provided with a snap engaging projection 102, the toothbrush head body 120a is a receiving groove 122 The coupling groove 124 for accommodating the corresponding coupling protrusion 102 is formed on the side of the receiving groove 122.

Receiving groove 122 is connected to the inner passage 26 for the transfer of toothpaste has a semi-cylindrical guide groove 122b is elongated and formed in the lower surface of the toothbrush head 100a, the extrusion hole 22 A semi-cylindrical groove 122c is formed to the front end by a predetermined length corresponding to the front end of the guide groove 122b from the position where the guide groove 122b is disposed.

When the toothbrush head 100a and the toothbrush head body 120a are press-fitted, the cylindrical groove formed by the guide groove 122b and the groove 122c has a return spring 126 and a cylindrical bar or rear end blocked from the front end. The cylindrical switch 128 is assembled in the inserted state. In this case, a recess 128a is formed at the rear end of the switch 128 to widen the contact area to receive a large force even with a small outflow pressure.

Therefore, when the toothbrush head 100a and the toothbrush head body 120a are press-fitted in a snap-fit manner, the turner 70 is rotated to transfer the toothpaste along the inner passage 26 of the refillable toothbrush head. As the return spring 126 is compressed as the pressure is transmitted to the switch 128 through the 122b, the switch 128 is moved to the front end along the circular groove, and the toothpaste is discharged to the extrusion hole 22 as a result.

When the user stops the rotation of the turner 70, when the toothpaste flows out through the extruder 22 by the pressure according to the rotation of the turner and no more pressure is transmitted to the toothpaste, that is, the restoring force of the return spring 126. When the toothpaste becomes larger than the pressure board, the switch 128 is blocked back by the outer circumferential surface of the extrusion port 22 while returning to the original position.

Therefore, the toothpaste may be prevented from being contaminated by various bacteria when the toothbrush is rinsed after the toothbrush is hardened through the extruder 22 or the toothbrush is immersed in the water or water cup remaining in the toothbrush 24. have.

Hereinafter, a toothbrush having a fixed quantity extrusion structure according to a second embodiment of the present invention will be described with reference to FIG. 12.

The second embodiment has a structure capable of finely controlling the quantitative extrusion of the toothpaste than the first embodiment, and also prevents reverse rotation. In the second embodiment, members having the same or similar functions as those in the first embodiment are denoted by the same member numbers.

First, in the second embodiment, the piston 154 has a tapered inner diameter as the refill toothpaste 50 goes to the distal end, so that the outer circumferential portion 156 can be retracted inward as the piston 154 moves to the distal end. It has a structure in which 158 is formed.

A first example of the quantitative extrusion structure of the second embodiment will be described with reference to FIGS. 13A to 13C.

In the first example of the quantitative extrusion structure, 1-3 reverse rotation preventing projections 174 are formed integrally on the same circumference and are integrally formed on the front surface of the turner 170, and the reverse rotation on the rear surface of the turner 170 is performed. The anti-rotation plate 160 is formed in a shape opposite to the anti-protrusion protrusion 174 is formed integrally at regular intervals in a plurality of fixed quantity setting protrusion 162 on the same circumference, the annular plate 138 of the outer cylinder 132 For example, a quadrangular boss boss 138a is coupled to the coupling hole 164 of the anti-rotation plate 160 to prevent rotation, thereby maintaining a predetermined distance from the annular plate 138. As it protrudes.

The reverse rotation preventing protrusion 174 has a shape of a right triangle having an inclined side in the rotational direction of the turner 170, and the plurality of fixed quantity setting protrusions 162 each have an inclined side in the opposite direction to the rotational direction. The rotating shaft 172 extending from the turner 170 has a quadrangular shape in which the tip portion 72a corresponds to the coupling groove 53a of the coupling hole 53, as in the first embodiment. The rear end portion 72b has a circular shape corresponding to the through hole 34 of the annular plate 138, and is somewhat larger than the diameter of the through hole 34 between the front end portion 72a and the rear end portion 72b. A locking step 78 is formed in which the diameter gradually decreases so that a snap coupling can be made.

Therefore, once the locking jaw 78 of the turner 70 is coupled to the annular plate 138 of the outer cylinder 132, separation is prevented by the locking jaw 78, and 1-3 reverse rotation preventing protrusions 174 are provided. Is coupled to the plurality of quantitative setting projections 162 to prevent reverse rotation.

However, in this case, when the turner 170 is rotated in the forward direction, the anti-rotation plate 160 made of a material having elastic force is deformed, and the reverse rotation preventing protrusion 174 rotates while pressing the fixed quantity setting protrusion 162. Then, once the reverse rotation preventing projection 174 is rotated by the set angle through the fixed amount setting projection 162, the turner 170 and the anti-rotation plate 160 is in parallel with each other, so the turner 170 is reverse rotational power. Even if the vertical rotation of the reverse rotation preventing projection 174 is caught on the vertical side of the fixed amount setting projection 162, the reverse rotation is prevented.

Therefore, in the case of using the quantitative extrusion structure according to the first example of the second embodiment, it is possible to quantitatively extinguish the toothpaste by the user's desire by rotating the turner 170 minutely by one click, and reverse rotation is also prevented. In this case, each time the turner 170 is rotated by one click, a sound is generated according to the elastic restoration of the anti-rotation plate 160 so that the user can accurately know the desired number of rotation clicks.

14A to 14C show a second example showing the quantitative extrusion structure of FIG. 12. In the second example, a plurality of anti-rotation protrusions 274 are formed on the front surface of the turner 270 in the same manner as the fixed quantity setting protrusion 162 of the anti-rotation plate 160, and the rotation of the anti-rotation plate 160 is prevented. The coupling boss 238a of the annular plate 238 for blocking has, for example, one-fold bending in a quadrangular shape and has an extended structure, and the rotation shaft 172 of the turner 270 is connected to the annular plate 238. The assembly is different from the first example in that the elastic spring 200 is disposed between the anti-rotation plate 160 and the annular plate 238 to closely adhere the anti-rotation plate 160 to the turner 270.

In the second example, since the elastic spring 200 is in close contact with the rotation preventing plate 160 to the turner 270, when the turner 270 rotates in the forward direction, the fixed amount setting projection 162 is performed by the reverse rotation preventing projection 274. The pressing force is applied to the rotation preventing plate 160 is lowered while pressing the elastic spring 200 so that the turner 270 can be easily rotated.

However, when the reverse rotational power is applied to the turner 270, since the pressing force on the rotation preventing plate 160 is not applied, the rotation preventing plate 160 does not fall, and thus, the reverse rotation prevention is performed on the fixed quantity setting protrusion 162. Projection 274 is caught and reverse rotation cannot be made.

Therefore, in the second example, as in the first example, the turner 270 is minutely rotated forward by one click to quantitatively extrude toothpaste as desired by the user, and reverse rotation is also prevented.

The fixed quantity extrusion apparatus can adjust the moving distance of the piston 54 by appropriately setting the setting intervals for the projections of the turner and the anti-rotation plate and the screw pitch of the screw 52 to rotate the turner by a set number of clicks. The toothpaste needed to brush your teeth can be adjusted. Therefore, anyone can easily quantitatively control the amount of toothpaste extrusion to prevent toothpaste waste.

The toothpaste extrusion structure according to the present invention can realize the extrusion of the toothpaste with a minimum moving distance of the piston, and as a result has a compact size as a whole.

In addition, the refilled toothbrush head can be replaced with a new refilled toothbrush head if the bristles are damaged after a period of use, thereby reducing the cost of purchasing the toothbrush.

On the other hand, the embodiment is shown in the structure having a screw coupling portion in the middle of the outer cylinder in consideration of the convenience of disassembly and assembly, it is also possible to manufacture a single cylinder.

As described above, the present invention can realize a slip-type compact appearance while embedding a toothpaste extruded structure, thereby providing excellent portability. In addition, it is easy to disassemble and assemble the refill toothbrush head and body parts, so it is easy to replace the refill and toothpaste, and the productivity is highly practical.

In addition, the refill toothpaste can be used and the head can be replaced semi-permanently, the body can be used semi-permanently, and the turner can be rotated forward by one creek. Unnecessary toothpaste can be prevented.

Furthermore, in the present invention, by presenting the structure of the toothbrush head with productivity at the time of actual mass production, the toothbrush embedded toothbrush can be made practical.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

Claims (17)

In toothpaste type toothbrush, A refillable toothbrush head having an inner passage extending from the rear end to the one end of which the brush head is formed; The tip portion is detachably coupled to the refill toothbrush head and consists of a body for quantitatively extruding toothpaste embedded therein into the refill toothbrush head. The body is An outer end of which the front end is engaged with the rear end of the refill toothbrush head and has an annular plate at the rear end, Toothpaste refills are embedded to prevent rotation in the outer cylinder, refillable toothpaste compression means for extruding the toothpaste embedded in the inner end portion; A turner rotatably coupled to the rear end of the outer cylinder and driven to rotate according to a user's operation; Quantitative extrusion function characterized in that it comprises a fixed-quantity extrusion means for controlling the extrusion amount of the toothpaste by driving the toothpaste extrusion means in accordance with the one-click rotation of the turner by limiting the rotation of the turner by a certain rotation angle Having a toothbrush. The method of claim 1, wherein the toothpaste refill Toothpaste barrel having a fixed coupling means for preventing rotation by combining with the inner cylinder to the outer peripheral portion, A driving screw connected to the turner at a rear end thereof to be rotated at a fixed position according to the rotation of the turner; Toothbrush having a quantitative extrusion function, characterized in that consisting of a piston for advancing in accordance with the rotational drive of the drive screw to extrude the toothpaste to the refill toothbrush head. According to claim 1, wherein the toothpaste extruding means A piston embedded movably along a plurality of guide protrusions formed in the inner circumference of the refill, A toothbrush having a quantitative extrusion function, characterized in that the rear end is rotatably snapped to the rear end of the refill and comprises a drive screw extending from the rear end to the front end of the refill so as to advance the piston forward and backward. The method of claim 1, wherein the quantitative extrusion means At least one engaging protrusion protruding in a radial direction to the front of the turner; A plurality of coupling recesses radially formed on the rear surface of the annular plate and coupled to the coupling protrusion whenever the turner is rotated by a predetermined angle; A rotating shaft extending from the turner and having a front end connected to the toothpaste extruding means and transmitting a rotational force of the turner; Is installed in the middle of the rotating shaft is composed of a coupling means for close to the turner to the annular plate, The turner is elastically deformed to limit the rotation of the turner by 1 click until the engaging projection is engaged with the next engaging recess when the turner is rotated, thereby quantitatively controlling the extrusion amount of the toothpaste. Toothbrush with extrusion function. The method of claim 1, wherein the quantitative extrusion means A plurality of engaging projections projecting on the same circumference in front of the turner A plurality of coupling recesses formed on the same circumference on the rear surface of the annular plate and coupled to the coupling protrusion whenever the turner is rotated by a predetermined angle; A rotating shaft extending from the turner and having a front end connected to the toothpaste extruding means and transmitting a rotational force of the turner; Is installed in the middle of the rotating shaft is composed of a coupling means for close to the turner to the annular plate, The turner is elastically deformed to restrict the rotation of the turner by 1 click until the engaging protrusion in the engaged state is coupled with the next coupling recess according to the rotation of the turner to quantitatively control the extrusion amount of the toothpaste. Toothbrush with quantitative extrusion function. The method of claim 1, wherein the quantitative extrusion means At least one anti-rotation coupling protrusion protruding at the same interval on the same circumference and inclined in the rotation direction on the front surface of the turner; An anti-rotation plate disposed on the front of the turner and having a plurality of quantitatively set protrusions integrally formed at regular intervals on the same circumference in a shape opposite to the reverse rotation preventing protrusion on the back; Combination boss to protrude as a two-stage bending structure to maintain a predetermined gap with the annular plate to prevent rotation of the anti-rotation plate, A rotating shaft extending from the turner and having a front end connected to the toothpaste extruding means and transmitting a rotational force of the turner; Is installed in the middle of the rotating shaft is composed of a coupling means for close to the turner to the anti-rotation plate, The anti-rotation plate is elastically deformed to limit the rotation of the turner by 1 click to quantitatively control the amount of extrusion of the toothpaste until the reverse rotation preventing engagement projection is engaged with the next fixed quantity setting projection during the rotation of the turner. Toothbrush having a quantitative extrusion function, characterized in that. According to claim 6, wherein the reverse rotation preventing projections are made of a right triangle, and the fixed amount set projection is made of a right triangle having a vertical side opposite to the vertical side of the right triangle when the turner is rotated inversely of the turner Toothbrush having a quantitative extrusion function, characterized in that to stop the rotation. The method of claim 1, wherein the quantitative extrusion means A plurality of anti-rotation coupling protrusions protruding at equal intervals on the same circumference and inclined in the rotation direction on the front of the turner; An anti-rotation plate disposed on the front of the turner and having a plurality of quantitatively set protrusions integrally formed at regular intervals on the same circumference in a shape opposite to the reverse rotation preventing protrusion on the back; Combination boss for protruding from the annular plate to prevent rotation of the anti-rotation plate, A rotating shaft extending from the turner and having a front end connected to the toothpaste extruding means and transmitting a rotational force of the turner; Coupling means is installed in the middle of the rotary shaft to close the turner to the rear end of the outer cylinder, Is disposed between the anti-rotation plate and the annular plate is composed of an elastic spring to close the anti-rotation plate to the turner, At the time of rotation of the turner, the anti-rotation preventing protrusion is elastically displaced until it is engaged with the next fixed quantity setting protrusion, thereby limiting the rotation of the turner by 1 click to quantitatively control the extrusion amount of the toothpaste. And a toothbrush having a quantitative extrusion function, characterized in that it prevents reverse rotation of the turner. The method of claim 1, wherein the refill toothbrush head is Toothbrush head body and the inner passage extending from the rear end to the front end and the receiving groove is formed in the front end, Toothbrush having a quantitative extrusion function, characterized in that the outer peripheral portion is pressure-bonded in the receiving groove and having at least one extrusion port in communication with the inner passage and composed of a toothbrush head with a plurality of bristles on the outer surface. The apparatus of claim 9, further comprising an automatic opening and closing device for connecting the inner passage and the extrusion hole in response to the pressure of the toothpaste extruded according to the rotation of the turner, and blocking the inner passage when the turning of the turner stops. Toothbrush having a quantitative extrusion function, characterized in that. The method of claim 10, wherein the automatic opening and closing device is Cylindrical groove formed at the end of the extrusion port from the lower end of the extrusion hole to the receiving groove of the toothbrush head body and the toothbrush head, A return spring provided at the front end of the groove, Toothbrush having a quantitative extrusion function, characterized in that consisting of a switch that connects the inner passage and the extruder in accordance with the pressure of the toothpaste when the lower part of the extrusion port when the normal state by the return spring. 10. The toothbrush of claim 9, wherein the distal end portion of the extruder forms a narrow structure in accordance with the protruding height, and the protruding height of the extruder is set to about one third the height of the bristles. The toothbrush according to any one of claims 10 to 12, wherein the receiving groove of the toothbrush head body is provided with a hemispherical groove connecting the inner passage and the extrusion port. A refillable toothbrush head having an inner passage extending from the rear end to the one end of which the brush head is formed; An outer end of which the front end is engaged with the rear end of the refill toothbrush head and has an annular plate at the rear end, Toothpaste refills are embedded to prevent rotation in the outer cylinder, refillable toothpaste compression means for extruding the toothpaste embedded in the inner end portion; A turner rotatably coupled to the rear end of the outer cylinder and driven to rotate according to a user's operation; Consists of a fixed-quantity extrusion means for limiting the rotation of the turner by a certain rotation angle to drive the toothpaste extruding means according to the one-click rotation of the turner to quantitatively control the extrusion amount of the toothpaste and to block reverse rotation. Toothbrush having a quantitative extrusion function, characterized in that. 15. The method according to claim 14, wherein the quantitative extrusion means A plurality of anti-rotation coupling protrusions protruding at equal intervals on the same circumference and inclined in the rotation direction on the front of the turner; Arranged on the front of the turner and the reverse rotation preventing projection on the back of the shape of the plurality of fixed set projections are formed integrally at regular intervals on the same circumference and the rotation prevention is elastically supported on the annular plate to be in close contact with the turner Plate, Combination boss for protruding from the annular plate to prevent rotation of the anti-rotation plate, A rotating shaft extending from the turner and having a front end connected to the toothpaste extruding means and transmitting a rotational force of the turner; Is installed in the middle of the rotating shaft is composed of a coupling means for rotatably positioning the turner to the rear end of the outer cylinder, At the time of rotation of the turner, the anti-rotation preventing protrusion is elastically displaced until it is engaged with the next fixed quantity setting protrusion, thereby limiting the rotation of the turner by 1 click to quantitatively control the extrusion amount of the toothpaste. And a toothbrush having a quantitative extrusion function, characterized in that it prevents reverse rotation of the turner. The method of claim 14, wherein the refill toothbrush head Toothbrush head body and the inner passage extending from the rear end to the front end and the receiving groove is formed in the front end, A bristle head having an outer circumferential portion press-bonded to the receiving groove and having at least one extrusion hole communicating with the inner passage and having a plurality of bristles on the outer surface; In response to the pressure of the toothpaste extruded in accordance with the rotation of the turner is connected to the inner passage and the extrusion port, and when the stop of the turner further comprises an automatic opening and closing device for blocking the inner passage Toothbrush with extrusion function. 15. The toothbrush of claim 14, wherein the inner circumferential portion of the outer cylinder and the outer circumferential portion of the toothpaste refill are tapered toward the distal end portion.