KR102491328B1 - Elastic member - Google Patents

Abstract

An elastic member is provided according to an embodiment of the present invention. In the elastic member, an outer bent portion bent outward and an inner bent portion bent inward are repeatedly formed in the longitudinal direction during elastic compression, and each of the outer bent portion and the inner bent portion has a thickness smaller than that of an adjacent region. can

Description

Elastic member {ELASTIC MEMBER}

The present invention relates to an elastic member.

In general, a pump container is configured to discharge contents to the outside through a pumping operation of a pump assembly coupled to an upper portion of the container body, and is coupled to a container body in which the contents are stored and an upper portion of the container body to vacuum the inside of the container body. It is composed of a pump assembly that lifts the contents by a pumping operation and a button unit that is located on top of the pump assembly and moves up and down according to user pressure and transmits pressure to the pump assembly.

Here, the pump assembly performs a pumping operation so that contents stored in the container body are discharged to the outside, and may include a spring providing elastic force therein. Since the spring is usually made of metal, the manufacturing cost is high, and since the pump assembly is made of different materials such as plastic and metal, it must be separated and discarded for recycling, so recycling is not easy. there was

In order to solve this problem, a bellows type elastic member made of a plastic material has been proposed. In the bellows type elastic member, peaks and valleys are repeatedly formed along the longitudinal direction, and elastic deformation occurs around the peaks and valleys. However, there is a problem that irregular deformation occurs when such an elastic member is pressed and elastically compressed. Specifically, the elastic member is not subjected to the same bending deformation, but a specific floor is first deformed and then another floor is deformed, causing a problem in that the elastic member is not naturally and continuously compressed. .

An object of the present invention is to provide an elastic member for solving the above problems.

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

An elastic member is provided according to an embodiment of the present invention. In the elastic member, an outer bent portion bent outward and an inner bent portion bent inward are repeatedly formed in the longitudinal direction during elastic compression, and each of the outer bent portion and the inner bent portion has a thickness smaller than that of an adjacent region. can

In addition, the thickness of the outer bent portion may be smaller than that of the adjacent area as the inner surface of the outer curved portion is depressed outward.

In addition, the inner curved portion may have a thickness smaller than that of the adjacent region while the outer surface is depressed inward.

In addition, the thickness may be reduced gradually from the adjacent region toward each of the outer curved portion and the inner curved portion.

In addition, as the inner surface of the outer bent portion is depressed outwardly at a first rate and the outer surface is depressed toward the inside at a second rate, the thickness is reduced than that of the adjacent area, and the first rate may be greater than the second rate. there is.

In addition, as the outer surface of the inner curved part is depressed inwardly at a third ratio and the inner surface is depressed toward the outside at a fourth ratio, the thickness is reduced than that of the adjacent area, and the third ratio is greater than the fourth ratio. can

In addition, by making the minimum thickness of the inner curved part smaller than the minimum thickness of the outer curved part, bending may occur earlier in the inner curved part than in the outer curved part.

In addition, the thickness may increase and then decrease from the inner curved portion to the outer curved portion.

In addition, the elastic member is a bellows type, and the outer curved part and the inner curved part are formed along the circumference so that side surfaces thereof may be sealed.

In addition, the upper support; And further comprising a lower support body, the outer bent portion and the inner bent portion may be repeatedly formed by connecting the upper support body and the lower support body.

According to the present invention, by using a soft plastic as the material of the elastic member, it is cost-effective and environmentally friendly.

In addition, according to the present invention, the outer and inner bends are repeatedly formed in the longitudinal direction, and the outer and inner bends are naturally and continuously elastically compressed through the thickness change, so that the feeling of use can be further improved.

In order to more fully understand the drawings cited in the detailed description of the present invention, a brief description of each drawing is provided.
1 is a perspective view of an elastic member according to an embodiment of the present invention.
2 is a front view of an elastic member according to an embodiment of the present invention.
3 is a cross-sectional view of an elastic member according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a compression process of an elastic member according to an embodiment of the present invention.
5 is a front view and cross-sectional view of an elastic member according to an embodiment of the present invention.

Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the contents described in the accompanying drawings. In addition, a method of configuring and using a device according to an embodiment of the present invention will be described in detail with reference to the contents described in the accompanying drawings. Like reference numerals or numerals in each drawing indicate parts or components that perform substantially the same function. For convenience described below, directions of up, down, left, and right are based on the drawings, and the scope of the present invention is not necessarily limited to the corresponding directions.

Terms including ordinal numbers, such as first and second, may be used to describe various elements, but elements are not limited by the terms. Terms are only used to distinguish one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include a combination of a plurality of related items or any one of a plurality of related items.

Terms used in this specification are used to describe embodiments, and are not intended to limit and/or limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms include or have are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features, numbers, or steps However, it should be understood that it does not preclude the possibility of existence or addition of operations, components, parts, or combinations thereof.

Throughout the specification, when a part is said to be connected to another part, this includes not only the case where it is directly connected but also the case where it is electrically connected with another element interposed therebetween. In addition, when a part includes a certain component, this means that it may further include other components without excluding other components unless otherwise stated.

1 is a perspective view of an elastic member according to an embodiment of the present invention, Figure 2 is a front view of an elastic member according to an embodiment of the present invention, Figure 3 is a cross-sectional view of an elastic member according to an embodiment of the present invention, Figure 4 is a cross-sectional view for explaining a compression process of an elastic member according to an embodiment of the present invention.

Referring to FIGS. 1 to 4 , the elastic member 100 may exhibit elastic force while being compressed and released in the longitudinal direction. Depending on the embodiment, the elastic member 100 may perform a pumping operation of the pump assembly within the pump assembly by using the elastic force. At this time, the pump assembly may suck and discharge contents through a pumping operation. However, this application is illustrative, and is not limited thereto.

Specifically, the elastic member 100 may have an outer curved portion 110 and an inner curved portion 120 formed repeatedly along the length direction from the outer curved portion 110 . When the elastic member 100 is pressed, the outer bent part 110 is bent and deformed outward, and the inner bent part 120 is elastically compressed while being bent and deformed inward, and when the pressure is released, the outer bent part 110 and the inner bent part 110 As the bent portion 120 recovers to its original state, it can transmit elastic force to the outside.

In an embodiment, each of the outer curved portion 110 and/or the inner curved portion 120 may have a thickness smaller than that of an adjacent region. Here, the thickness may mean a distance or interval between an inner surface and an outer surface of the outer curved part 110 and/or the inner curved part 120 . Since the thickness of the outer curved portion 110 and/or the inner curved portion 120 is reduced than the adjacent area, the outer curved portion 110 and/or the inner curved portion 120 form a weak region of pressure against the elastic member 100. ) or a weak point, allowing it to flex under pressure. This reduction in thickness may be made gradually from the adjacent region toward the outer bend 110 and/or the inner bend 120, respectively. However, it is not limited thereto.

In an embodiment, the outer bent portion 110 may have a thickness smaller than that of an adjacent area while the inner surface is depressed outward. Through this, the inner side of the outer bent portion 110 may be a weak area or weak point than the outer side, but the curve may be directed outward.

Additionally, the outer surface of the outer bent portion 110 may be depressed inward so that the thickness thereof is less than that of an adjacent area. At this time, the thickness reduction of the inner surface side is greater than the thickness reduction of the outer surface side, so that the inner surface side is a weaker area or weaker area than the outer surface side, so that the curve is directed outward. For example, the outer curved portion 110 may have an inner surface that is recessed toward the outside at a first ratio and an outer surface that is recessed toward the inside at a second ratio so that the thickness is reduced than that of the adjacent area, and the first ratio is greater than the second ratio. there is. At this time, the first ratio and the second ratio mean a rate at which the thickness per unit length of the elastic member 100 decreases, and here, various reference values may be applied to the unit length according to an embodiment to which the present invention is applied. .

In an embodiment, the inner curved portion 120 may have a thickness smaller than that of an adjacent area while the outer surface is depressed inward. Through this, the outer surface side of the inner bent portion 120 may be a vulnerable area or weak point rather than the inner surface side, but the curve may be directed inward.

Additionally, the inner surface of the inner curved portion 120 may be recessed outward so that the thickness thereof is smaller than that of an adjacent area. At this time, the thickness reduction of the outer surface side is greater than the thickness reduction of the inner surface side, so that the outer surface side is a weaker area or weaker area than the inner surface side, so that the curve is directed inward. For example, the inner curved portion 120 has an outer surface that is recessed inwardly at a third ratio and an inner surface that is recessed toward the outside at a fourth ratio, so that the thickness is smaller than that of the adjacent area, and the third ratio is greater than the fourth ratio. can In this case, the third ratio and the fourth ratio refer to a rate at which the thickness per unit length of the elastic member 100 decreases, and various reference values may be applied to the unit length according to an embodiment to which the present invention is applied.

In an embodiment, the thickness may increase and then decrease from an arbitrary inner curved portion 120 to an adjacent outer curved portion 110 . Similarly, the thickness may increase and then decrease from an arbitrary outer curved portion 110 to an adjacent inner curved portion 120 .

In an embodiment, at least one of the elastic force, compression distance, and bending order of the elastic member 100 may be adjusted by changing the thickness of each of the inner curved portion 120 and/or the outer curved portion 110 and a thickness from an adjacent region. . For example, the maximum thickness of the adjacent region is greater than the minimum thickness of the inner bent part 120 and/or the outer bent part 110, so that when the elastic member 100 is pressed, the inner bent part 120 and/or It may cause bending of the outer bent portion 110 . Additionally, for example, the minimum thickness of the inner bend 120 is smaller than the minimum thickness of the outer bend 110, so that when the elastic member 100 is pressed, the inner bend than the outer bend 110 ( In 120), the bending may be caused first. According to this, the stiffness of the outer bend 110 is greater than that of the inner bend 120, so that the outer bend 110 exhibits a relatively greater elastic restoring force, and the inner bend 120 has a relatively longer stroke (i.e., , compression distance). However, it is not limited thereto.

In an embodiment, the elastic member 100 may be implemented as a bellows type. That is, the outer curved portion 110 and the inner curved portion 120 are formed along the circumference so that the side surface may be sealed.

In an embodiment, at least one area of the side surface of the elastic member 100 may be formed open. To this end, the elastic member 100 may have a plurality of outer curved parts 110 spaced apart from each other in the horizontal direction and a plurality of inner curved parts 120 spaced apart from each other in the horizontal direction along the longitudinal direction. In this case, the inner curved portions 120 spaced apart from each other may be formed separately or connected to each other through a configuration such as a bridge. Also, the outer curved portions 110 and/or the inner curved portions 120 spaced apart from each other may face opposite directions. However, it is not limited thereto.

In the embodiment, at least a portion of the elastic member 100 may be made of a soft plastic material. For example, polyetheretherketone (PEEK), polycarbonate (PC), polyoxymethylene (POM), polyketone (POK), polybutyreneterephthalate (PBT), polypropylene (PP), polyethylene (PE) , polyoxypropylene (POP), elastomer, polyolefin elastomer (POE), and the like. However, it is not limited thereto.

In an embodiment, the elastic member 100 may be manufactured by injection molding. Therefore, it is possible to provide more stable performance compared to the case of blow molding or the like. For example, when the elastic member 100 is a bellows type, it is usually manufactured by blow molding, but at this time, there is a problem in that the thickness of the elastic member 100 is not formed uniformly. However, in the case of injection molding, such a non-uniformity problem does not occur, the defect rate is reduced, and the asymmetric elasticity problem can also be solved. However, this is exemplary and may be manufactured by other molding methods such as blow molding.

In the embodiment, the elastic member 100, the upper support body 130; And it may further include a lower support 140 provided on the lower side of the upper support 130. In this case, the upper support body 130 and the lower support body 140 may be connected while the outer bent part 110 and the inner bent part 120 are repeated in the longitudinal direction. At this time, hollows are formed inwardly in the upper support body 130 and the lower supporter 140, and the hollowness of the elastic member 100 may allow the stem of the pump assembly to be located inside. The upper support 130 and the lower support 140 may have, for example, a circular ring shape. However, it is not limited thereto.

The elastic member 100 shown in FIGS. 1 to 4 is exemplary, and various configurations may be applied according to an embodiment to which the present invention is applied.

5 is a front view and cross-sectional view of an elastic member according to an embodiment of the present invention.

The elastic member 100' shown in FIG. 5 is described similarly to the elastic member 100 shown in FIGS. 1 to 5 .

Referring to FIG. 5 , each of the outer curved portion 110' and the inner curved portion 120' may be formed with a thickness smaller than that of an adjacent region.

At this time, both the inner and outer surfaces of the outer curved portion 110 'can be reduced in thickness by sinking, and at this time, the degree of thickness reduction of the inner surface is greater than that of the outer surface, so that when pressing against the elastic member 100' can be bent outward. In particular, since the inner surface of the outer curved portion 110' is depressed, the outer curved portion 110' can be more flexible and naturally formed.

In addition, the inner curved portion 120' may have a reduced thickness due to a recessed outer surface, and may have a relatively flat inner surface. The outer surface becomes a weak area or weakness so that the inner curved portion 120' can be bent inward when the elastic member 100' is pressed, and the flat inner surface generates stiffness and restoring force against bending. can do.

The elastic member 100' shown in FIG. 5 is exemplary, and various configurations may be applied according to an embodiment to which the present invention is applied. For example, the outer surface of the outer curved part 110' may be formed relatively flat instead of the inner curved part 120', and both the inner surface of the inner curved part 120' and the outer surface of the outer curved part 110' are relatively flat. It can also be formed flat.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. In addition, each embodiment can be operated in combination with each other as needed. Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

100, 100': elastic member 110, 110': outer bend
120, 120': inner bend 130, 130': upper support
140, 140 ': lower support

Claims (10)

As an elastic member,
An outer bent portion that bends outward during elastic compression and an inner bend portion that bends inward are repeatedly formed in the longitudinal direction,
The elastic member of claim 1 , wherein each of the outer curved portion and the inner curved portion is formed to have a thickness smaller than that of an adjacent region, so that the elastic member is bent when pressed against the elastic member. According to claim 1,
The elastic member of claim 1 , wherein the thickness of the outer curved portion is reduced than that of the adjacent region while the inner surface is depressed outward. According to claim 1,
The elastic member of claim 1 , wherein the thickness of the inner curved portion is reduced from that of the adjacent region while the outer surface is depressed inward. According to claim 1,
wherein the reduction in thickness is made gradually from the adjacent region toward each of the outer bend and the inner bend. According to claim 1,
The outer curved part has an inner surface that is recessed toward the outside at a first rate and an outer surface that is recessed toward the inside at a second rate so that the thickness is smaller than that of the adjacent area,
The first ratio is greater than the second ratio, the elastic member. According to claim 1,
The inner curved portion has an outer surface that is depressed inwardly at a third rate and an inner surface that is depressed toward the outside at a fourth rate, so that the thickness is smaller than that of the adjacent area,
The third ratio is greater than the fourth ratio, the elastic member. According to claim 1,
The elastic member, wherein a minimum thickness of the inner bent portion is smaller than a minimum thickness of the outer bent portion, so that bending occurs earlier in the inner bent portion than in the outer bent portion. According to claim 1,
An elastic member whose thickness increases and then decreases as it goes from the inner curved portion to the outer curved portion. According to claim 1,
The elastic member is a bellows type, and the outer curved portion and the inner curved portion are formed along the circumference so that the side surfaces are sealed. According to claim 1,
upper support; And further comprising a lower support,
The outer bent portion and the inner bent portion are repeatedly formed by connecting the upper support body and the lower support body, the elastic member.

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