JP4378554B2 - Disc - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a valve body attached to the mouth of a container, and more particularly to a valve body that can be attached to the mouth of a container made of a soft material having a weak elastic restoring force.
[0002]
[Prior art]
Conventionally, as a valve body attached to the mouth of a container such as a tube or a bottle for storing ketchup, mayonnaise or a high-viscosity source, there is a valve body as shown in FIGS. In FIG. 11, reference numeral 50 denotes a valve body. The valve body 50 opens when the slits 53 of the elastic valve portion 52 are lifted slightly upward by the contents 51 when the contents 51 are discharged. However, since the elastic valve portion 52 and the side wall portion 54 are fixed, the external shape of the valve body 50 hardly changes regardless of the discharge of the contents 51. Further, the thickness of the elastic valve portion 52 and the side wall portion 54 is substantially the same, and the annular flange portion 54 is slightly thick.
[0003]
However, in such a valve body 50, since the elastic valve portion 52 and the side wall portion 54 are fixed and the valve body 50 is not flexible, when the discharge of the contents 51 is repeated, the end of the slit 53 The tearing force acts on the portion, and the slit 53 is cut longer than the initially set length, and the discharge amount of the contents gradually increases. During discharge of the contents, the side wall portion 54 in conjunction with the opening and closing of the elastic valve portion 52, move up and down and in no way swung, no room for absorbing the pressing force, inadvertent to the container 56 There was a drawback that the contents were discharged immediately against the pressing.
[0004]
Therefore, the devised valve body is a valve body as shown in FIG. In FIG. 12, reference numeral 60 denotes a valve body. The valve body 60 has an elastic valve portion 63 below, and a slit 61 having a cross-shaped cut is formed at the center of the elastic valve portion 63. . A discharge port 62 is provided at the center of the slit 61. The elastic valve portion 63 bulges downward in a spherical shape, and a thin elastic peripheral wall 64 is continuously formed at the other end. The thin elastic peripheral wall 64 has a function of moving the elastic valve portion 63 outward from a position where the elastic valve portion 63 is retracted in the mouth portion of the container 66 in accordance with the pushing operation of the contents. Further, an annular base 65 for fixing the valve body 60 to the container 66 is continuously formed at the other end of the thin elastic peripheral wall 64.
[0005]
In the container 66 to which such a valve body 60 is attached, as shown in FIG. 12, the elastic valve portion 63 is in the retracted position in the mouth portion of the container 66, and the discharge port 62 is completely closed. Yes. When a pressing force is applied to the body portion of the container 66, the thin elastic peripheral wall 64 moves outward as if rolling, and in synchronization with this, the elastic valve portion 63 moves outward. And after the elastic valve part 63 transfers to the outermost side, it opens so that the center of the slit 61 formed in the center of the elastic valve part 63 may rise outside, and the discharge port 62 opens. After the contents are ejected from the discharge port 62, the valve body 60 is closed by the elastic restoring force of the container 66.
[0006]
However, such a valve body 60 shown in FIG. 12 has the following drawbacks.
(1) When discharging the contents or closing the discharge port 62, it is necessary to move the elastic valve portion 63 and the thin elastic peripheral wall 64 up and down in a rolling manner. That is, the material of the container 66 is made of a hard and strong material such as polyethylene terephthalate, and the elastic valve portion 63 and the thin elastic peripheral wall 64 are moved upward so as to roll with a strong pressing force to the container 66. Thus, the contents were discharged, and after the contents were discharged, the elastic valve portion 63 and the thin elastic peripheral wall 64 were quickly returned to their original positions by the elastic restoring force of the valve body 60. That is, since the elastic valve portion 63 and the thin elastic peripheral wall 64 have a large force to return to the original and are quick, the normal soft container 66 has no room for air back and continuous pressing operation is impossible. It was. Therefore, it has been necessary to forcibly air back after discharging the contents using the hard container 66 having elasticity. Therefore, when the valve body 60 is attached to a material container made of polyethylene, nylon, etc., which is soft and has a small elastic force, the valve body 60 quickly returns to its original position without air back after discharging the contents. It was impossible to return the container 66 to its original shape, and thus continuous use was impossible.
(2) In the case of the container 66 made of a hard material having a strong elastic restoring force as described above, a certain amount of pressing force is required when the contents are pushed out, and the pushing operation is difficult for women and children. There were drawbacks.
(3) When the remaining amount of the contents stored in the container 66 decreases, when the body of the container 66 made of a material having a strong elastic restoring force is strongly pressed, the air that has air-backed into the container 66 And the contents are mixed and discharged vigorously, and when the contents are pushed out from the valve body 60, the contents scatter and there is a drawback that the surroundings are soiled.
[0007]
The present invention has been made paying attention to such a conventional problem, and even if it is attached to the mouth of a container made of a soft material with a weak elastic force, the next pressing operation can be performed by a quick elastic restoring force. An object of the present invention is to provide a valve body that is easy and easy to use for women and children, and that the content is less scattered during extrusion, and that the content is easily cut.
[0008]
[Means for Solving the Problems]
To solve this problem, solutions corresponding to the invention of claim 1, wherein includes a cylindrical peripheral wall portion, and an elastic valve body which closes the upper end of the peripheral wall portion, the annular base that is continuous with the lower end of the peripheral wall portion made, the elastic valve body, a central thin valve portion, continuous with the outside of the thin valve portion, and formed gradually thicker toward the radially outer portion, the thick outer peripheral edge portion consists of a valve portion, said being formed openable slit from thin valve portion to the thick valve portion, the peripheral wall portion, the thin wall to swing towards upper radially inner and outer upon opening and closing of the slit and The annular base portion is continuously bent below the thin peripheral wall, supports the elastic valve body and the thin peripheral wall and does not swing, and the annular base portion is bent outward in the horizontal direction from the lower end of the rising thick peripheral wall. configured state, a shall be secured to the mouth of the container, prior to Near the center or the center of the slit of the elastic valve body, a valve body, characterized in that at least one through hole is bored.
[0009]
Moreover, solutions corresponding to the invention of claim 2, wherein, the elastic valve body is a valve body, wherein the benzalkonium curved portion with a constant radius in the upper surface forming.
[0010]
Furthermore, solutions corresponding to the invention of claim 3, wherein, in the valve body described above, consists of cuts of the cross-shaped slit of the elastic valve body intersect at the center, the through hole is bored in the center of the cut It is the valve body characterized by this. According to a fourth aspect of the present invention, there is provided a solution means corresponding to the above-mentioned valve body, wherein the slit of the elastic valve body includes a cross-shaped cut intersecting at the center, and the through hole is formed in the vicinity of the cut. This is a characteristic valve body.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. 1, 2, and 5 to 7 are drawings showing a first embodiment of the present invention. In these drawings, the through holes (see reference numeral 12 in FIG. 3 and reference numerals 13 and 14 in FIG. 4) are omitted. The valve body according to the present invention mainly has three configurations. That is, it consists of the elastic valve body 1, the peripheral wall portion 2 and the annular base portion 3. The elastic valve body 1 is formed with a slit 4 that can be opened and closed at the center. As shown in FIG. 2, the slit 4 is formed by making a cross-shaped cut in the central portion of the elastic valve body 1, and the central portion of the elastic valve body 1 is divided into four equal parts. Alternatively, it may be divided into three equal parts, or may be a single-character shaped slit 4 or the like. A thin valve portion 5 is formed at the center of the elastic valve body 1 where the slit 4 is formed. The elastic valve body 1 is gradually formed thicker from the thin valve portion 5 toward the outside in the radial direction, and a thick valve portion 6 is formed at the end. That is, as shown in FIG. 5, a curved portion 1a having a radius R is formed from the upper surface of the thin valve portion 5 to the upper surface of the thick valve portion 6, and gradually from the thin valve portion 5 along the curved portion 1a. to the thick valve unit 6 is migration.
[0012]
Next, the raised peripheral wall 2 is composed of an upper thin peripheral wall 9 and a lower thick peripheral wall 10. The thick peripheral wall 10 is formed with a thickness difference 1.2 to 3.0 times that of the thin peripheral wall 9. Then, the thin wall 9, in the process of migrating to the closed state from the state, the elastic valve body 1 closed state (the state shown in FIG. 7) opened from (the state shown in FIG. 5), or an open, As shown in FIG. 8, the upper end of the thin peripheral wall 9 swings inward or outward in the radial direction by a distance H. A thick-walled peripheral wall 10 is formed below the thin-walled peripheral wall 9, and the thick-walled peripheral wall 10 supports the thin-walled peripheral wall 9 and the elastic valve body 1 swinging upward. The thick peripheral wall 10 is target-fixed to the thin peripheral wall 9 regardless of whether the elastic valve body 1 is opened or closed. In the first embodiment, a step portion 11 is formed at the boundary between the thin peripheral wall 9 and the thick peripheral wall 10.
[0013]
Next, the annular base 3 continuing to the peripheral wall 2 is bent outward and formed in a horizontal flange shape. In the first embodiment, as shown in FIG. 6 , the annular base portion 3 is sandwiched between the upper end surface of the mouth portion of the container 8 and the pressing protrusion 14 a of the inner plug body 14, so that the valve The body is securely attached to the container 8. In addition, as shown in FIG. 1, the inner peripheral surface of the inner plug body 14 and the outer peripheral surface of the mouth portion of the container 8 are fitted with an undercut.
[0014]
Furthermore, FIG. 9 is a drawing showing a second embodiment of the present invention. In the second embodiment, a linear inclined portion 1 b is formed from the upper surface of the thin valve portion 5 formed at the center of the elastic valve body 1 to the upper surface of the thick valve portion 6. Further, in the second embodiment is not stepped portion formed at the boundary between the thin wall 9a and the thick wall 10a of the peripheral wall 2 and a wall thickness to migrate gradually naturally thick.
[0015]
3 and 4 is a plan view showing an embodiment of a through-hole according to the present invention, in the embodiment of these, the center (see FIG. 3) or near (Figure slit 4 of the elastic valve body 1 4) , at least one or more through holes 12, 13 are formed. About the number of this through-hole, it can determine arbitrarily according to the hardness of the raw material of the container which attaches the valve body which concerns on this invention, and the viscosity of the content. That is, the valve body according to the present invention is Ru can der attached to the mouth portion of the soft material of the container (typically a bottle container, etc.). If the soft material is slightly hard, it is outside the scope of the present invention, but the through holes 12 and 13 need not be drilled. However, if the material is extremely soft, it is necessary to increase the number of through holes 12 and 13 and force air back. In addition, the container which can attach the valve body which concerns on this invention is a bottle container, a tube container, etc.
[0016]
FIG. 10 is a drawing showing a fourth embodiment of the present invention. The configuration of the elastic valve body 1 is the same as that of the first embodiment. The feature of the fourth embodiment is in the fixing method of the elastic valve body 1. In this embodiment, the female screw portion of the inner plug body 21 is screwed into the male screw portion of the mouth portion of the container 20. The annular base 3 of the elastic valve body 1 is engaged with the lower end of the pressing projection 23 of the inner plug 21 and is provided on the upper end surface 20a of the mouth. Furthermore, the upper end surface 20a of the mouth of the container 20 and the reinforcing rib 22 of the inner plug 21 are in strong contact.
[0017]
Next, the operation of the present invention will be described. In the configuration of the present invention, as shown in the first embodiment, a curved portion 1a is formed with a radius R from the upper surface of the thin valve portion 5 to the upper surface of the thick valve portion 6, or the second portion of FIG. As shown in the embodiment, a large wall thickness difference is provided between the thin valve portion 5 and the thick valve portion 6 by forming the linear inclined portion 1b. Therefore, the elastic valve body 1 quickly returns to the original position while discharging air after the contents are discharged by the action of the center of gravity due to the thickness difference, and the contents are closed when the elastic valve body 1 is closed. The slice is good. Further, once the elastic valve element 1 is closed, the elastic valve element 1 is not easily opened even when a slight careless pressing force is applied to the container 8.
[0018]
Next, as shown in FIG. 8, in the process of opening and closing the elastic valve body 1, only the upper thin peripheral wall 9 in the radial direction is the distance H while the thick peripheral wall 10 of the peripheral wall portion 2 is fixed. Swing inward or outward. That is, after discharge of the contents, the thin peripheral wall 9 has an elastic restoring force to return to the inside in the radial direction, and acts to close the opening of the elastic body 1 and to quickly close the opening. Because it encourages, the content is good. Further, the thin peripheral wall 9 moves to the outside in the radial direction against the pressing force applied to the container 8 inadvertently, and the peripheral wall portion 2 spreads outside, so that the pressing force is absorbed. Therefore, the contents are not discharged immediately. As described above, the valve body according to the present invention can be quickly returned to the original while the air bag is appropriately air-backed by the action of each part of the valve body itself, and the contents can be cut off. Furthermore, unlike the conventional valve body, it is not necessary to move the elastic valve part and the thin elastic peripheral wall upward so as to roll, and it is not necessary to force air back, so that the container of a material having a hard elastic force There is no need to use. And since it is not necessary to depend on the kind of material of a container, it can attach to the container of a normal soft material. Further, when the valve body is opened, it is not necessary to strongly press the container, so that there is no possibility that the contents are scattered.
[0019]
【The invention's effect】
As described above, according to the present invention, even when attached to the mouth of a container made of a soft, weak elastic material, the next pressing operation is easy due to the quick air back action of the valve body itself. At the same time, it is easy to use for women and children who have no power, and also has the effect that the content is less scattered when extruded and the content is easily cut. In particular, since the through hole is formed at or near the center of the slit , it is possible to return the container to its original shape by forcibly air-backing and to enter the container quickly by the next pressing operation.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment according to the present invention with a through hole omitted .
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a plan sectional view showing an embodiment of a through hole according to the present invention.
FIG. 4 is a plan sectional view showing another embodiment of the through hole according to the present invention.
FIG. 5 is a longitudinal sectional view showing a state in which an elastic valve body is closed in the first embodiment according to the present invention.
FIG. 6 is a longitudinal sectional view showing a process of opening an elastic valve body in the first embodiment according to the present invention.
FIG. 7 is a longitudinal sectional view showing a state in which the elastic valve body is completely opened in the first embodiment according to the present invention.
FIG. 8 is a longitudinal sectional view showing a state in which the thin peripheral wall of the peripheral wall swings in the first embodiment according to the present invention.
FIG. 9 is a longitudinal sectional view showing a second embodiment according to the present invention.
FIG. 10 is a longitudinal sectional view showing a fourth embodiment according to the present invention.
FIG. 11 is a longitudinal sectional view showing a conventional valve body.
FIG. 12 is a longitudinal sectional view showing a conventional valve body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Elastic valve body 1a Bending part 2 Perimeter wall part 3 Annular base part 4 Slit 5 Thin valve part 6 Thick valve part 8 20 Container 9 9a Thin peripheral wall 10 10a Thick peripheral wall 12 Through-hole 13 Through-hole

Claims (4)

It consists of a cylindrical peripheral wall part, an elastic valve element that closes the upper end of the peripheral wall part , and an annular base part that continues to the lower end of the peripheral wall part,
(A) the elastic valve body, a central thin valve portion, continuous with the outside of the thin valve portion, and gradually formed the thick portion radially outwardly, thick outer peripheral edge portion A slit that can be opened and closed from the thin valve portion to the thick valve portion ,
(B) said peripheral wall includes a thin peripheral wall towards the top by breaking the slit is swung radially out, continuously under the said thin wall, supports the elastic valve body and the thin wall, and the rocking It consists of a thick wall that does not move,
(C) said annular base is configured in a state which is bent horizontally outward from the lower end of the upstanding thick wall, a shall be secured to the mouth of the container,
(D) A valve body characterized in that at least one through hole is formed in the center of the slit of the elastic valve body or in the vicinity of the center . The elastic valve body, the valve body according to claim 1, wherein the benzalkonium bend with a constant radius in the upper surface is formed. The valve body according to claim 1, wherein the slit of the elastic valve body is formed by a cross-shaped cut intersecting at the center, and the through hole is formed at the center of the cut . The valve body according to claim 1, wherein the slit of the elastic valve body includes a cross-shaped cut intersecting at the center, and the through hole is formed in the vicinity of the cut.

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