KR101891105B1

KR101891105B1 - Cosmetic vessels

Info

Publication number: KR101891105B1
Application number: KR1020160045438A
Authority: KR
Inventors: 변재삼
Original assignee: 주식회사 케이알
Priority date: 2016-04-14
Filing date: 2016-04-14
Publication date: 2018-08-23
Also published as: KR20170117699A; WO2017179762A1

Abstract

A cosmetic container according to an embodiment of the present invention includes a pump for discharging cosmetics, a top-cover which is disposed on the top of the pump and includes at least one discharging hole through which the cosmetics are discharged, And a diffusion space in which the cosmetics discharged from the pump move is formed between the top plate and the guide plate, wherein the diffusion plate is disposed between the top plate and the guide plate, When the cosmetics are accommodated in the diffusion space and the cosmetics are discharged by the operation of the pump, the cosmetics accommodated in the diffusion space are discharged to the discharge holes over the steps.

Description

{COSMETIC VESSELS}

The present invention relates to a cosmetic container, and more particularly, to a cosmetic container in which cosmetic products are uniformly discharged.

Cosmetics are divided into solid cosmetics, liquid cosmetics, and gel cosmetics depending on the form. Recently, more and more consumers have preferred gel cosmetics with long-lasting durability and good adhesion. Generally, the gel-like cosmetic product is filled in a glass container or a tube container, and is used in such a manner that a user squeezes or removes the gel-like cosmetic product in a hand or a puff and applies it to the skin. According to such a use method, there is a disadvantage that it is necessary to wash hands after use, and there is a problem that it is difficult to uniformly distribute the gel-like cosmetic product to the puff.

In order to solve such a problem, a compact container in which a pump is pressurized by a user's pressure and cosmetics filled in the container body are discharged has appeared. According to the prior art, the compact container includes a distribution member formed with a distribution path for uniformly discharging the cosmetic product.

However, in order to form a distribution path on the distribution member, the manufacturing process is complicated and the process unit cost increases. In addition, since the position of the dispenser to which the cosmetics are discharged must be aligned with the dispensing position, the probability of occurrence of errors increases and the probability of occurrence of defective products increases.

An object of the present invention is to provide a cosmetic container in which cosmetic products are uniformly discharged while having a simpler structure.

Preferably, the stepped portion may be formed such that at least a part of the upper surface of the stepped portion is located below the discharge hole.

Further, preferably, the induction plate further includes an upper surface extending to the outside of the step, and at least a part of the extended upper surface may be formed so as to be positioned below the discharge hole.

Preferably, the guide plate may include a tablet press contact portion which is in contact with the lower surface of the tablet press at the outer side of the step to guide the cosmetics to the discharge hole.

Further, preferably, the distance between the top surface of the step and the soil discharging plate may be shorter than the distance between the top surface of the guiding plate and the soil discharging plate.

Further, preferably, at least one protrusion may be formed on the upper surface of the guide plate or the lower surface of the overlay.

Preferably, the at least one protrusion may be formed at a lower height than the height of the step when the protrusion is formed on the upper surface of the guide plate.

Also, preferably, the at least one protrusion may be formed at regular intervals.

Further, preferably, the interval between the guide plate and the overlay is kept constant by the at least one protrusion.

Preferably, the cosmetics receiving portion may include a concave portion in which the upper surface is recessed.

Preferably, the restoration unit further includes a restoration unit for pushing up the lowered plasterboard to restore the plasterboard to its original position.

Preferably, the pump further includes a pump support portion having a groove formed in a central region thereof, wherein the pump includes a rod inserted into the groove portion and protruding to the upper portion of the groove portion, Thus, the pumping operation of the pump can be performed by pressing the rod downward on the lower surface of the overlay.

Preferably, at least one latching portion is formed on at least one region of the outside of the overlay, and at least one latching portion is formed on an inner circumferential surface of the rim of the pump supporting portion, One guide groove may be formed.

According to the present invention, a cosmetic container can be uniformly discharged while having a simple structure. In addition, since the structure is simple, the process cost can be lowered, and the probability of occurrence of defective products can be reduced because the probability of occurrence of errors is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited in the description of the invention.
1 shows a cosmetic container according to an embodiment of the present invention.
2 shows an exploded perspective view of a cosmetic container according to an embodiment of the present invention.
Figure 3 shows a cross-sectional view of a cosmetic container according to one embodiment of the invention.
4 is an enlarged view of a portion A in Fig.
5 is an enlarged view of a portion B in Fig.
Figure 6 illustrates a cross-sectional view of a pressurized cosmetic container in accordance with one embodiment of the present invention.
7 shows a rod shape of a pump according to an embodiment of the present invention.
8 shows a rod shape of a pump according to another embodiment of the present invention.
9 shows a pump of a cosmetic container according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive. In addition, embodiments of the present invention will be described below, but the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only a case of being "directly connected" but also a case of being "indirectly connected" . Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

1 shows a cosmetic container according to an embodiment of the present invention.

Referring to FIG. 1, the outer case of the cosmetic container 100 according to an embodiment of the present invention may include a lower case 110 and an upper case 160. The lower case 110 can house the storage container 120, the pump support 130, the pump 140, and the discharge unit 150 on the inner side. A hinge part (not shown) hinged to the upper case may be formed on the outer side of the lower case 110 in a region other than the button part 111 having a locking protrusion. In the button portion 111, the locking protrusion formed on the upper portion of the button portion is retreated by the pushing operation of the user, so that the upper case 160 can be removed from the locking protrusion.

The upper case 160 may be coupled to the lower case 110 through a hinge connection to open or close the lower case 110 to the outside. In addition, a mirror or the like is disposed on the inner circumferential surface of the upper case 161, so that the use of the cosmetic container 100 can be more conveniently assisted.

2 shows an exploded perspective view of a cosmetic container according to an embodiment of the present invention.

Referring to FIG. 2, the cosmetic container 100 may include a storage container 120, a pump support 130, a pump 140, and a discharge unit 150.

The storage container 120 is a container for receiving cosmetics, and a receiving groove 121 may be formed in the central area. A communication part communicating with the cosmetic storage space of the storage container 120 may be formed at the lower end of the receiving groove 121. The cosmetic may be discharged to the outside through the communication part. The cosmetics contained in the storage container 120 may be selected from liquid or gel-like sun creams, liquid powders, babe creams, lotions, and creams, but the present invention is not limited thereto. Gel-like cosmetics can be accommodated.

The pump support 130 supports the pump 140 and is capable of engaging with the storage container 120. For this purpose, the pump support part 130 may have a groove 131 having a predetermined depth in the center area, and the pump 140 may be disposed inside the groove 131. The groove 131 may be engaged with the receiving groove 121 of the storage container 120 and may be coupled to the receiving groove 121 by a screw thread formed in the groove 131 and / have. However, the present invention is not limited to such a coupling method.

At least one guide groove 132 may be formed on the inner circumferential surface of the rim of the pump support portion 130. Specifically, the guide groove 132 may include a recessed region 132_1 and a latching protrusion 132_2. The depression area 132_1 may be formed by recessing the inner peripheral surface of the rim of the pump support part 130 to accommodate the latching part 152_1 of the discharge part 150 and provide a downward movement space of the latching part 152_1 have. The engagement protrusion 132_2 is formed at the upper end of the recessed area 132_1 by recessing the inner peripheral surface of the rim 132. The engagement protrusion 132_2 prevents the upward movement of the engagement part 152_1 of the discharge part 150, Is supported by the latching jaw 132_2, a force may be generated to urge the rod 141 downward about the latching jaw 132_2.

According to an embodiment of the present invention, the number, position, size, and the like of the guide grooves 132 formed in the pump support part 130 may be variously configured. 2, when the recessed region 132_1 and / or the engagement protrusion 132_2 is limited to a predetermined width, movement of the engagement portion 152_1 in the lateral direction is limited, It is possible to prevent the loss of the pressing force due to the rotation of the rotor. Also, the recessed area 132_1 and / or the engagement protrusion 132_2 may be formed over the entire inner circumferential surface of the rim. In this case, the discharging part 150 can also form at least one latching part 152_1 at various positions.

The pump 140 is configured to discharge the cosmetics stored in the storage container 120 to the outside through the discharging unit 150. According to one embodiment of the present invention, the pump 140 may include, but is not limited to, a pump, particularly an airless pump, including any means capable of pumping the cosmetics contained in the storage container 120 can do.

The pump 140 according to an embodiment of the present invention may be inserted into the groove 131 of the pump support 130. The lower end of the top plate 152 is pressed against the rod 141 at the center area of the pump 140 by the rod 141 protruding above the groove 131, So that the pumping operation of the pump 140 can be performed.

A detailed description of each component of the pump according to an embodiment of the present invention will be described in detail with reference to FIG.

9 shows a pump of a cosmetic container according to an embodiment of the present invention.

9, the pump 140 includes a housing portion 142, a check valve portion 143, a piston rod 144, a guide piston 145, a first sealing portion 146, a spring portion 147, And may include a second sealing portion 148.

The housing part 142 includes a receiving space therein, and a through hole through which the cosmetic may flow may be formed on the lower surface. That is, the housing part 142 can allow the cosmetics discharged from the storage container 120 to flow into the pump 140 through the through hole, and the pump 140 can be operated while the piston rod 144 moves up and down Space can be provided.

The check valve portion 143 is located at the lower end of the housing space of the housing portion 142 and can open and close the through hole. That is, the check valve portion 143 may open or close the through hole according to the downward movement or the upward movement of the piston rod 144, thereby allowing the cosmetics to flow into the housing portion 142 or to block the inflow thereof.

The piston rod 144 may be disposed on the check valve portion 143 of the housing space of the housing portion 142 and may include a rod 141 formed in the cylinder and the cylinder formed on the outside. In this case, at least one inflow hole is formed on the surface of the cylinder so that the cosmetics can be transferred from the check valve part 143 to the inside of the cylinder. The rod 141 receives the pressure of the discharge part 150, Can be moved downward. The piston rod 144 moved downward can be restored upward by the elastic force of the spring portion 147. [ The upper end of the inner circumferential surface of the cylinder may be hermetically closed with at least one area of the lower surface of the discharge unit 150 so that the cosmetics may not flow out to the outer area other than the discharge unit 150 during the pumping operation of the pump 140 have.

The guide piston 145 is closely disposed between the inner surface of the housing portion 142 and the outer surface of the piston rod 144 to guide the upward and downward movement of the piston rod 144, The piston rod 144 is fixed and / or moved in association with the upward or downward movement of the piston rod 144 so as to engage with the piston rod or form a predetermined spacing space from the piston rod 144, The cosmetics can be discharged from the cosmetics container and moved into the piston rod 144. [

The first sealing portion 146 is fixedly coupled to the upper end portion of the housing portion 142 to seal the housing portion 142 together with the second sealing portion 148 so that the cosmetic does not pass through the piston rod 144 but into the housing portion 142).

The spring portion 147 is wound around the outer circumferential surface of the housing portion 142 and can restore the position of the downwardly moved piston rod 144 changed by the user's pressing operation. That is, when the pressing force is removed, the spring portion 147 can move the second sealing portion 148 coupled with the spring portion 147 upward. At this time, the piston rod, coupled with the second sealing portion 148, The position of the piston rod 144 changed by pressurization can also be restored by moving the piston rod 144 upward together.

The second seal portion 148 is located on the top of the first seal portion 146 so that at least one region is spaced apart from the outer surface of the cylinder rod of the piston rod 144 by the first seal portion 146, . The second sealing portion 148 is disposed at the upper end of the spring portion 147. When the piston rod 144 is moved downward by the user's pushing, the second sealing portion 148 moves downward together with the spring portion 147 to compress the spring portion 147, , And when the pressing force is removed, the position of the piston rod 144 can be restored while moving upward.

Referring back to FIG. 2, the discharging unit 150 is configured to deliver the force that the user presses to the pump 140 and the cosmetics discharged by the operation of the pump 140 to the outside, A plate 151 and a topping 152.

The guide plate 151 can be positioned between the overlay 152 and the pump 140, and a high step 151_1 is formed on the upper surface. The induction plate 151 is hermetically coupled to the upper end of the pump 140 to prevent the cosmetic discharged from the pump 140 to the induction plate 151 from leaking to the outside when the tablet press 152 is pressed . Generally, a distribution path is formed in the distribution plate, and the distribution path is required to be positioned on the discharge surface formed in the soil discharge, so that the manufacturing process is complicated and the operation efficiency is low. On the other hand, The step unit 151_1 having a simple structure can be formed without a separate distribution, so that the process cost can be reduced, and the probability of occurrence of an error can be reduced and the probability of occurrence of a defective product can be reduced.

The topsheet 152 is disposed on the top of the pump 140 and includes at least one outlet hole 152_2 through which the cosmetic is discharged. According to one embodiment of the present invention, the topsheet 152 may press down the rod 141 of the pump 140 while moving downward in response to the user's pressing. The top plate 152 may be spaced apart from the top surface of the pump support 130 by a predetermined distance and at least one area outside the top plate 152 may have guide grooves 132 At least one latching part 152_1, which can be inserted into the latching part 152, may protrude outwardly. In addition, the topsheet 152 may include at least one discharging hole 152_2 through which the top surface may be exposed to the outside and the user's puff may be contacted, and cosmetics may be discharged to one area of the top surface. In addition, the central region of the top surface of the overlay 152 may be embodied inwardly so as to stably accommodate user's puffs and the like. However, this is an exemplary form, and the topography 152 may be implemented in various forms according to an embodiment.

The configuration and operation will be described in more detail with reference to Figs. 3 to 8. Fig.

Figure 3 shows a cross-sectional view of a cosmetic container according to one embodiment of the invention. FIG. 4 is an enlarged view of part A of FIG. 3 according to an embodiment of the present invention, and FIG. 5 is an enlarged view of part B of FIG. 3 according to another embodiment of the present invention.

Referring to FIG. 3, one embodiment is shown on the left side 310 with respect to the centerline, and another embodiment is shown on the right side 320. In both embodiments, the basic structure is the same, but the position of the step 151_1 and the shape of the guide plate 151 are different. FIG. 4 is an enlarged view of a portion A shown by a dotted line in FIG. 3, and FIG. 5 is an enlarged view of a portion B of FIG.

3 to 5, a diffusion space 153 through which the cosmetics discharged from the pump 140 moves is formed between the induction plate 151 and the top plate 152, The cosmetics are accommodated in the diffusion space 153 by the step 151_1 formed on the cosmetics. When the cosmetic is discharged by the operation of the pump 140, the cosmetics stored in the diffusion space 153 are discharged to the discharge hole 152_2 over the step 151_1.

According to an embodiment of the present invention shown in FIG. 4, at least a part of the upper surface of the step 151_1 may be positioned below the discharge hole 152_2. 5, the guide plate 151 further includes an upper surface 151_4 extending outside the step 151_1, and at least one of the extended upper surfaces 151_4 And some of them may be formed to be positioned below the discharge holes 152_2. These embodiments are only a few of the various embodiments, and the induction plate 151 may be formed and arranged in various forms according to the embodiment.

According to an embodiment of the present invention, a tablet press contact portion 151_2 for guiding the cosmetics to the discharge hole 152_2 by being in contact with the lower surface of the tablet 152 to the outside of the step 151_1 of the guide plate 151, . &Lt; / RTI > The earth contacting unit 151_2 closely contacts with the lower surface of the earth cover 152 so as to prevent the cosmetics from moving in the horizontal direction any longer, thereby allowing the cosmetics to move in the vertical direction and be discharged to the discharge hole 152_2.

Furthermore, according to an embodiment of the present invention, the distance between the top surface of the step 151_1 and the top cover 152 may be shorter than the distance between the top surface of the guide plate 151 and the top cover 152. [ The distance between the top surface and the top plate 152 is made shorter than the distance between the top surface of the guide plate 151 and the top plate 152, ), The moving speed is fast. Therefore, cosmetics over the level difference 151_1 can be smoothly discharged to the discharge hole 152_2 at a high speed.

According to an embodiment of the present invention, at least one protrusion 151_3 may be formed on the upper surface of the induction plate 151 or the lower surface of the overlay 152. [ The protrusion 151_3 maintains a constant distance between the guide plate 151 and the topsheet 152 so that a constant amount of cosmetics is always received in the diffusion space 153 and can move along the diffusion space 153 . A certain amount of cosmetics is always contained in the diffusion space 153, and as the particles move along the diffusion space 153, a certain amount of cosmetics can always be discharged to the discharge hole 152_2. In addition, since the interval between the guide plate 151 and the topsheet 152 is kept constant, a certain amount of cosmetics are always discharged to the discharging holes 152_2 regardless of which portion the user applies pressure to the topsheet 152 . Further, when the topsheet 152 is repeatedly pressed to use cosmetics, deformation may occur depending on the material of the topsheet 152. The projection 151_3 prevents such deformation so that a certain amount of cosmetics can always be discharged to the discharge hole 152_2.

According to one embodiment of the present invention, when at least one protrusion 151_3 is formed on the upper surface of the induction plate 151, it may be formed to have a height lower than the height of the step 151_1. Also, at least one protrusion 151_3 may be formed at regular intervals. Further, the protrusion 151_3 may be formed in various shapes and numbers. For example, the protrusion 151_3 may be formed in various shapes such as a semicircle, a triangle, or a square, and may be formed in an appropriate number according to the surface area of the induction plate 151. [

According to one embodiment of the present invention, the induction plate 151 may include a concave portion 151_5 having a concave upper surface. A large amount of cosmetics can be accommodated in the concave portion 151_5, and a sufficient amount of cosmetics can be discharged to the discharge hole 152_2.

According to the embodiment of the present invention, the cosmetic can be uniformly discharged even with the simple structure forming the step 151_1. Particularly, the induction plate 151 according to an embodiment of the present invention does not require a separate distribution path, and it is not necessary to match the discharge hole and the distribution path. Therefore, the process unit price can be lowered, and the probability of occurrence of defective products can be lowered by reducing the probability of occurrence of errors.

3, the rod 141 is located in the central region of the discharge portion 150, so that, even if the user presses any region of the discharge portion 150, the deviation of the force transmitted to the rod 141 is minimized can do. When the central region of the discharging unit 150 is pressed, the discharging unit 150 can move downward without tilting to press the rod 141. However, when the pressing operation is generated in the peripheral region of the discharging unit 150 , And the rod 141 acts as the center axis of the lever, and the opposite region symmetrical to one region where the pressing action acts on the rod 141 can be turned in a direction opposite to the pressing force. If the rotational force is not removed, even if the discharging unit 150 is pressed, the discharging unit 150 merely tilts the rod 141 with respect to the axis, and the pressing force is not transmitted to the rod 141.

In order to solve such a problem, according to the present invention, the upward movement of the latching portion 152_1 inserted into the guide groove 132 of the pump support portion 130 is restricted by the latching jaw 132_2. That is, even if the rotation is performed in the opposite region, the upward movement of the engagement portion 152_1 located on the opposite side of the region is restricted by the engagement jaw 132_2, so that the engagement jaw 132_2 can cancel the rotation. According to this, the discharge unit 150 is inclined downward with the stopper 132_2 as a center axis, and the pressing force is transmitted to the rod 141, so that the pump 140 can be operated. The recessed region 132_1 of the guide groove 132 is formed to extend downward from the insertion position of the latching portion 152_1 so that the discharge portion 150 can be moved downward in the region where the pressing force acts have.

The tilting of the discharging portion 150 is minimized through the engaging portion 152_1 and the guide groove 132 so that the discharging portion 150 presses the rod 141 even if any region of the discharging portion 150 is pressed, The cosmetic can be easily discharged.

At least one restoring part 170 for restoring the position of the discharging part 150 may be disposed between the discharging part 150 and the pump supporting part 130. The restoring portion 170 restores the position and / or posture of the discharging portion 150 while the rod 141 moves upward in accordance with the state of the pump 140 after the pressing operation, It is possible to quickly assist the position and / or posture recovery of the discharging portion 150 by providing a restoring force upward when it is tilted or fails to rise sufficiently by the rod 141. [ According to an embodiment of the present invention, the restoration part 170 may include an elastic member.

Although FIG. 3 illustrates the case where the rod 141 acts as the center axis of the lever, this is exemplary and, depending on the embodiment, other configurations of the pump 140 may act as the center axis of the lever.

Figure 6 illustrates a cross-sectional view of a pressurized cosmetic container in accordance with one embodiment of the present invention. Figs. 7 and 8 are enlarged views of the dotted line portion of Fig. 6, each showing a rod shape of the pump according to an embodiment of the present invention. Figs. 7 and 8 (a) show the state before pressurization of the pressurization, and (b) pressurization of the pressurization of each pressurization.

6 to 8, the rods 141 and 141 'may include convex ends that contact the lower surface of the overlay 152 and 152', and the lower surfaces of the overlay 152 and 152 ' A concave region having a shape corresponding to the convex end portion may be formed in an area in contact with the rods 141 and 141 '. The convex end portion and the concave region may be formed in at least one area with a gentle curved surface. According to this, for example, when the overlay 152 or 152 'is inclined to press the rod 141 or 141' downward, By increasing the contact surfaces of the rods 141 and 141 'in contact with the plates 152 and 252, it is possible to stably transmit the pressing force to the lower rods 143 and 243 and at the same time to slow down the tilting of the satellites 152 and 152' You can make it smooth.

The shape of the convex end and the concave region is an example, and the shape of the convex end and the concave region, for example, the degree of curvature or cutting, as shown in Figs. 7 and 8, may vary according to the embodiment.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100 Cosmetic container 110 Lower case
111 Button part 120 Storage container
121 receiving groove 130 pump supporting portion
131 groove portion 132 guide groove
132_1 sinking region 132_2 sinking jaw
140 Pump 141 Load
142 housing part 143 check valve part
144 Piston rod 145 Guide piston
146 first seal part 147 spring part
148 Second sealing part 150 Discharging part
151 guide plate 151_1 step
152 earthworks 152_1 protrusion
152_2 Discharge Ball 153 Diffusion Space
160 upper case

Claims

A pump for discharging cosmetics;
A top plate disposed at an upper portion of the pump and including at least one discharge hole through which the cosmetic is discharged; And
And a guide plate provided between the top plate and the pump and having a step on an upper surface thereof,
Wherein the step is protruded upward from the upper surface of the guide plate and is formed continuously along the circumference of the guide plate,
A diffusion space in which the cosmetics discharged from the pump is accommodated is formed by the inner surface of the step, the lower surface of the topping and the upper surface of the guide plate,
Wherein when the cosmetics are further discharged into the diffusion space by the pump, an amount of cosmetics exceeding the capacity of the diffusion space is discharged to the discharge hole over the stepped portion.

The method according to claim 1,
The step difference,
And at least a part of the upper surface is formed so as to be located below the discharge hole.

The method according to claim 1,
The induction plate,
Further comprising an upper surface extending to the outside of the step, wherein at least a part of the extended upper surface is formed to be positioned below the discharge hole.

The method according to claim 1,
The induction plate,
And a tablet press contact portion which is in contact with the lower surface of the tablet press at the outer side of the step to guide the cosmetics to the discharge hole.

The method according to claim 1,
Wherein the distance between the top surface of the step and the topsheet is shorter than the distance between the top surface of the topsheet and the topsheet.

The method according to claim 1,
Wherein at least one protrusion is formed on the upper surface of the guide plate or on the lower surface of the overlay.

The method according to claim 6,
Wherein the at least one protrusion comprises:
And a height lower than a height of the stepped portion when formed on the upper surface of the guide plate.

The method according to claim 6,
Wherein the at least one protrusion comprises:
Wherein the cosmetic container is formed at regular intervals.

The method according to claim 6,
Wherein the distance between the guide plate and the topsheet is kept constant by the at least one protrusion.

The method according to claim 1,
The induction plate,
Characterized in that the upper surface comprises a concave recess

The method according to claim 1,
Further comprising a restoration portion for pushing up the lowered plaster so as to restore the plaster to its original position.

The method according to claim 1,
Further comprising a pump support portion in which a groove is formed in the central region,
The pump includes:
And a rod inserted into the groove portion and protruding above the groove portion,
Wherein the lower surface of the overlay presses the rod downward by the pressing action of the overlay, whereby the pumping action of the pump is achieved.

The method according to claim 1,
Further comprising a pump support portion in which a groove is formed in the central region,
At least one latching portion is formed on at least one outer side of the top plate and at least one guide groove into which the latching portion is inserted is formed on an inner circumferential surface of the rim of the pump supporting portion.