JPH09309552A - Opening/closing mechanism with tension plate for container opening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispose a tension plate together with a container and make it possible to drink the contents divided into a plurality of quantities, by sticking fixing belt-flaps along the longitudinal direction of a passage body at both sides of a part holding the passage body of the tension plate and fixing both ends of the tension plate. SOLUTION: Fixing belt-flaps 7 are formed by extending a tension plate 5 along the longitudinal direction of a passage body, at both sides of a part holding the passage body of the tension plate 5. The fixing belt-flaps 7 are folded along both sides of the passage body and the folded-back part of the front end is fitted to the opposite end. And the fixing belt-flaps 7 are fixed to the plate 5 together with a tension plate 6 and the passage body. In this way, by fixing the tension plates 5, 6 in a bent state with a specified curvature, a very durable opening/closing mechanism can be obtained. And the mechanism can be disposed in an incinerator or the like together with the container as it is, after use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for opening and closing a container opening which is applied to various containers such as bottles, PET bottles, cans, and paper packs.

[0002]

2. Description of the Related Art Conventionally, the opening of a container such as a bottle, a PET bottle, a can, and a paper pack can be provided with a cap made of a material different from that of the container, a pull-top type opening can be formed, or a straw can be inserted. It is sealed by attaching a sealing seal made of a deposited film or the like.

[0003]

However, bottles and P
When a cap made of a material different from that of the container is attached, such as an ET bottle, it takes time and effort to attach and remove the cap to the container opening, and it is easy to dissipate. Had the drawback of having to dispose of the cap.

[0004] In the case of a pull-top type opening, such as a steel can or an aluminum can, it is easy to dissipate and cannot be closed once opened.
There is a drawback that it is difficult to carry because it is easy to spill, and it is difficult to keep and store and eat it many times.

[0005] Furthermore, in a device in which a straw made of a vapor-deposited film or the like is attached to the opening of a container such as a paper pack so that a straw can be inserted into the seal, if the paper pack is grasped accidentally, the contents will be lost. However, there is a drawback in that it is blown out from the opening into which the straw is inserted and spills out, and it is difficult to dispose of a sealing seal made of a material different from that of the container during disposal after use.

The opening / closing mechanism with a presser spring plate for the container opening of the present invention is intended to solve the above-mentioned drawbacks of the prior art, and is to be disposed of by incineration or the like together with the container at the time of disposal after use. After use, the opening automatically closes, so there is no spillage even if you grab or carry the container, so the container opening that can be stored and eaten and eaten multiple times It is an object of the present invention to provide an opening and closing mechanism with a holding spring plate.

[0007]

That is, according to an opening / closing mechanism with a holding spring plate of a container opening of the present invention, both sides of an openable / closable passage body made of a soft sheet are sandwiched by a pair of holding spring plates and a holding spring plate is provided. Are held in a state of being bent with a predetermined curvature so that they are brought into close contact with each other, the passage body is closed in the normal state, and when the rod-shaped body is inserted into the passage body between the holding spring plates, the inner holding spring plate deforms and the passage When the body is opened and the rod-shaped body is pulled out, the inner holding spring plate comes into close contact with the outer holding spring plate by the restoring force, and the passage body is closed. By fixing the fixing strips along the length direction of the passage body on both sides of the portion of the spring plate that sandwiches the passage body,
It is characterized in that both ends of the pressing spring plate are fixed.

According to the opening / closing mechanism with the pressing spring plate of the container opening of the present invention, both sides of the openable / closable passage body made of the soft sheet are sandwiched by the pair of pressing spring plates, and the pressing spring plate is bent at a predetermined curvature. When the rod-shaped body is inserted into the passage body between the holding spring plates, the inner holding spring plate is deformed and the passage body opens to open the rod-shaped body. In the opening / closing mechanism with the holding spring plate at the container opening, the inner holding spring plate is brought into close contact with the outer holding spring plate by the restoring force when it is pulled out, and the passage body is closed along the length direction of the passage body. The presser spring plate to form a fixing strip, and the fixing strip is folded and fixed to both sides of the portion of the pressing spring plate where the passage body is clamped. Fix both ends of the plate It is intended to also characterized that there was Unishi.

In the opening / closing mechanism with a holding spring plate of the container opening according to the present invention, the holding spring plate is provided with a traction means in which one side end is extended to be slightly shorter than the holding spring plate. It is also characterized in that the engaging pieces are engaged with the opposite ends of the pressing spring plate so that the pressing spring plate is held in a bent state with a predetermined curvature.

The opening / closing mechanism with the holding spring plate of the container opening according to the present invention is also characterized in that the pair of holding spring plates are separately formed.

The opening / closing mechanism with the holding spring plate for the container opening according to the present invention is also characterized in that the one pressing spring plate is formed by folding a long sheet in the left-right direction.

The opening / closing mechanism with the holding spring plate of the container opening according to the present invention is also characterized in that the one pressing spring plate is formed by folding a long sheet in the vertical direction.

In the opening / closing mechanism with the pressing spring plate for the container opening, the pressing spring plate is characterized by being selected from a plastic sheet, a metal sheet, or a composite sheet using these as constituent materials.

In the opening / closing mechanism with a holding spring plate for the container opening, the openable / closable passage body made of a soft sheet is provided with two
It is also characterized in that it consists of a piece of soft sheet attached at the boundary of the passage.

[0015] In the opening / closing mechanism with a holding spring plate for the container opening, the soft sheet is characterized in that it is selected from a rubber sheet, a plastic sheet, water-resistant paper, a waterproof cloth, an aluminum foil or a composite sheet thereof.

According to the opening / closing mechanism with a presser spring plate for the container opening portion of the present invention, it is possible to directly dispose of the container by incineration or the like at the time of disposal after use. It is possible to provide an opening and closing mechanism with a holding spring plate for a container opening that can be stored and eaten in multiple times because the container does not spill even if the container is gripped or carried to close. It has become possible.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an opening / closing mechanism with a pressing spring plate for a container opening according to the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view showing an example in which an opening / closing mechanism (hereinafter referred to as an opening / closing mechanism) with a holding spring plate for a container opening according to the present invention is applied to a container. In the drawing, (A) shows an example of plastic bags, (A-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a sheet-like plastic bag 101, and (A-2) provides a circular bottom 103. This shows a case where the opening / closing mechanism 111 of the present invention is applied to a plastic bag 102 which has been used.

(B) shows an example of paper packs, and (B)
1) When the opening and closing mechanism 111 according to the present invention is applied to a small paper pack 104 such as a fruit juice beverage, (b-2) is when the opening and closing mechanism 111 according to the present invention is applied to a large paper pack 105 such as milk.
It shows the case where is applied.

(C) shows examples of bottles and PET bottles, and (C-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a small bottle 106 for a soft drink or the like. )
Is the opening and closing mechanism 11 of the present invention attached to the large PET bottle 107.
1 shows the case where 1 is applied.

(D) shows an example of paper cups and a cover 109.
The case where the opening / closing mechanism 111 of the present invention is applied to the portion of the lid 109 of the paper cup 108 provided with is shown.

The details of the opening / closing mechanism 111 will be described below.

FIG. 2 shows an openable and closable passage body constituting the opening and closing mechanism 111 made of a soft sheet.
The passage body 1 can be made by laminating two soft sheets, and the passage portion 2 can be opened in a cylindrical shape. Further, on both sides of the passage portion 2, there are formed shift stoppers 3 which hold the passage body 1 by being sandwiched between presser spring plates described below. Reference numeral 4 denotes a guide portion of the passage body 1 protruding from the position of the slip stopper 3.

As the passage body 1, the soft sheet to be used is desirably selected from a rubber sheet, a plastic sheet, a waterproof paper, a waterproof cloth, an aluminum foil or a composite sheet thereof.

In FIG. 2, (a) shows a case where the passage portion 2 of the passage body 1 is closed, and (b) shows a case where the passage portion 2 of the passage body 1 is open and the contents of the container are passing through. The state is shown.

FIG. 3 shows a case in which the passage portion 2 of the passage body 1 is heated and welded by bonding two soft sheets together. In the drawing, (a) shows the tapered passage portion 2 which is narrowed toward the opposite side of the guide portion 4. (B)
Indicates a passage portion 2 which is narrowed toward the opposite side of the guide portion 4 and further has a cylindrical shape. (C) shows the passage portion 2 which is narrowed after having a portion of a predetermined size toward the opposite side of the guide portion 4 and further has a cylindrical portion. (D) shows the passage portion 2 formed in a cylindrical shape having the same diameter as the guide portion 4.

The width of the passage portion 2 of the passage body 1 is desirably set to a size that allows easy insertion according to the diameter of the rod to be inserted and that has sufficient room for ventilation around the inserted rod. In this way, when filling the container with the contents, the contents can be filled from the rod-shaped portion, and the air in the container can be released from the surroundings so that the filling operation can be performed without difficulty.

As a means for forming the passage portion 2 in the passage body 1, a means for bonding two soft sheets and heat-welding at the portion of the slip stopper 3 is desirable, but other forming means may be used. It is. When welding the slip stopper 3, it is sufficient to weld only the boundary with the passage portion 2.

4 and 5 show an example of a holding spring plate for sandwiching the passage body 1 to open and close it, particularly to automatically seal the passage body 1. In the examples of FIGS. 4A and 5A, the holding spring plate 5 is formed separately from the holding spring plate 6 (not shown). In the example of FIGS. 4B and 5B, the pressing spring plates 5 and 6 are formed by folding a long sheet in the left and right directions. In the example of FIGS. 4C and 5C, the pressing spring plates 5 and 6 are formed by folding a long sheet in the vertical direction. A slit 8 for passing the first guide portion 4 is formed. The length and shape of the slit 8 can be appropriately determined according to the size of the guide portion 4 and the like.
However, in order to bend the pressing spring plates 5 and 6, it is desirable that the pressing spring plates 6 have a sufficient length so as not to impair the opening / closing reaction of the pressing spring plates 6.

Reference numeral 9 denotes a pulling means in which one side surface of the pressing spring plate 5 is formed to be slightly shorter, and an engaging piece 10 at the tip of the pulling means 9 is provided at the opposite end portions of the pressing spring plates 5 and 6. By engaging them, the pressing spring plates 5 and 6 can be held in close contact with each other while being bent with a predetermined curvature.

In the figure, 7 is a fixing strip. The fixing strips 7 are formed by extending the holding spring plate 5 along the length direction of the passage body 1 on both sides of the portion of the holding spring plate 5 where the passage body 1 is sandwiched. Then, the fixing strip 7 is folded along both sides of the passage body 1, and the folded-back portion 21 at the tip thereof is engaged with the opposite end portions, and the fixing strip 7 is pressed down and the spring plate 6 and the passage body 1 are provided. At the same time, it is fixed to the presser spring plate 5. In this way, by fixing the pressing spring plates 5 and 6 while bending them with a predetermined curvature, it is possible to obtain the opening / closing mechanism 111 having extremely excellent durability.

As means for fixing the fixing strips 7 to the pressing spring plates 5 and 6, not only means using an adhesive but also means such as heat welding can be preferably used. In particular, in the heat welding means, it suffices to perform spot heat welding with the shift preventing piece 3 of the passage body 1 interposed therebetween.

The pressing spring plates 5, 6 of the long sheet, the pulling means 9, and the fixing strip 7 may have the same wall thickness or different wall thicknesses. In terms of the relationship with the passage body 1, the passage body 1 is required to be flexible, so a thin one is used, and the pressing spring plates 5 and 6 are
It is necessary to have a predetermined wall thickness. Of course, the inner pressing spring plate 6 is preferably thicker than the passage body 1.

The material of the long sheet can be selected from a plastic plastic sheet, a metal sheet, or a composite sheet using these as a constituent material. Examples of the plastic sheet include polyethylene, polypropylene, polyester, polycarbonate and the like. In this case, it is desirable that the passage body 1 is made of the same material.

The thickness of the long sheet is preferably about 0.1 to 0.5 mm when the plastic sheet such as polyethylene is used.
In the case of a rectangular case, the dimensions of the pressing spring plates 5 and 6 are desirably about 2 to 1.5: 1 in a horizontal axis: vertical axis ratio. For example, the horizontal axis: the actual size of the vertical axis is 40 mm: 25 mm, 35 m
m: 20 mm, 30 mm: 11 mm, etc.

When the pressing spring plates 5 and 6 are curved, the radius of curvature is preferably 11 mm to 40 mm. At a small curvature, the holding force of the holding spring plates 5 and 6 sandwiching the passage body 1 is strong.
The reaction to the insertion and removal of the rod 11 is good. On the contrary, the radius of curvature can be increased to adjust the force with which the pressing spring plates 5 and 6 pinch the passage body 1 and the amount of force when inserting and removing the rod-shaped body.

In terms of material, the passage body 1 and the pressing spring plate 5,
It is desirable to use a single material for each of the long sheets that compose 6. For example, a material similar to a plastic-based bag or a bag made of a composite sheet of these and aluminum foil, etc., used in everyday homes, etc., is versatile as a material, workability, processability after garbage, etc. It has been confirmed that the present invention is extremely suitable for solving the above problems.

6 to 10 show a state in which the opening / closing mechanism 111 of the present invention is configured by sandwiching the passage body 1 between the pressing spring plates 5 and 6. That is, FIG. 6 shows a configuration in an example in which the pressing spring plates 5 and 6 are separately formed, and FIG. 7 shows a configuration in an example in which the pressing spring plates 5 and 6 are formed by folding a long sheet in the left and right directions. FIG. 8 shows a configuration of an example in which the pressing spring plates 5 and 6 are formed by folding a long sheet in the vertical direction.

In FIG. 9 (a), the pressing spring plates 5 and 6 separately formed in the example of FIG.
9B shows a state in which both sides of the passage body 1 are sandwiched by folding the long sheets forming the pressing spring plates 5 and 6 in the left and right direction in the example of FIG. FIG. 9C shows a state in which the long sheets forming the pressing spring plates 5 and 6 in the example of FIG. 8 are folded in the vertical direction and sandwiched on both sides of the passage body 1. This figure 9
In the example of (c), it is necessary to insert the lower end of the passage body 1 into the slit 8.

Next, as shown in FIG. 10 (a), the fixing strip 7 is folded over the pressing spring plate 6, and the folded portion 21 at the tip of the fixing strip 7 is pressed against the pressing spring plate 5 as shown in (b). Engaging piece 10 at the tip of pulling means 9 formed by extending the pressing spring plate 5 as shown in FIG.
Is engaged with the other end of the pressing spring plate 5 to be assembled.

In the obtained opening / closing mechanism 111, as shown in (c), the passage body 1 is held in an arcuate shape in a state of being curved along with the bending of the pressing spring plates 5 and 6, and the pulling means 9 is further positioned at the position of the chord. It is held in an arc shape. By doing so, the shape of the pressing spring plates 5 and 6 can be held by the fixing strips 7, and the bending can be surely maintained by the pulling means 9, so that the passage body 1 is firmly crimped. be able to.

The operation of the container opening / closing mechanism of the present invention constructed as described above will now be described.

11 and 12 show a state in which a straw or other rod-shaped body 11 is inserted into the passage body 1. The opening / closing mechanism 111 secures a passage by inserting the rod-shaped body 11 into the passage portion 2 of the passage body 1 to release the close contact of the passage portion 2 that is in close contact with the pressing spring plates 5 and 6. Is. In this embodiment, a straw is used as the rod-shaped member 11 to secure a more reliable passage.

In FIG. 13 for explaining the above operation in more detail, the tip of the rod-shaped body 11 made of a straw is inserted from the upper end of the guide portion 4 of the passage body 1. Actually, by attaching a cap or an attachment port to this portion, the rod-shaped
Into a shape that allows easy insertion. Then, when the rod-shaped body 11 is gradually pushed down as shown in FIGS.
The passage portion 2 of the passage body 1 is expanded together with the inner presser spring plate 6.

When the rod 11 is further pushed down,
The inner holding spring plate 6 is spread over the entire length along the rod-shaped body 11, and the contents of the container can freely flow as shown in FIG.

On the contrary, when the opening of the container is to be closed, the rod-shaped body 11 may be simply pulled out. That is, the presser spring plate 6 gradually returns to the original position and comes into close contact with the presser spring plate 5, so that the passage portion 2 of the passage body 1 reverses from FIG. Will come into close contact with each other. At this time, when pressure is applied to the opening / closing mechanism 111 provided at the container opening to push the contents out of the container, the pressure is transmitted to the passage body 1 via the holding spring plates 5 and 6, and the passage body 1 is pressed.
The passage portion 2 is further sealed.

[0047]

According to the opening / closing mechanism with the pressing spring plate of the container opening of the present invention, it is possible to dispose of the container such as incineration as it is with the container at the time of disposal after use.

Since the container opening is automatically closed after use, it does not spill even if the container is grabbed or carried, so that it is possible to store it and eat and drink in multiple times. .

Further, when the whole container including the above-mentioned opening / closing mechanism is made of a single material, the manufacturing process is simplified, and the processing after waste is simplified, so that the container is highly recyclable. can do.

In the present invention, the holding spring plate is fixed in a state of being bent with a predetermined curvature by the fixing strip, so that the opening / closing mechanism having extremely excellent durability can be obtained.

Further, since the pressing spring plate, the pulling means, and the fixing strip are formed by folding one long sheet,
The opening / closing mechanism can be easily created, and it is possible to provide an opening / closing mechanism with a pressing spring plate for a container opening, which is extremely excellent in mass productivity.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example in which an opening / closing mechanism with a holding spring plate for a container opening portion of the present invention is applied to a container, wherein (a) shows an example of a plastic bag, and (b) shows an example of a paper pack. And (c)
Shows examples of bottles and PET bottles, and (d) shows examples of paper cups.

FIG. 2 shows an openable and closable passage body made of a soft sheet, which constitutes a mechanism for opening and closing a container opening according to the present invention;
(A) is a perspective view and AA cross section showing a state where the passage portion of the passage body is closed, and (B) is a state where the passage portion of the passage body is open and the contents of the container are passing through. FIG.

FIGS. 3A to 3D are schematic perspective views showing a case in which a passage body is bonded by heating two soft sheets together.

FIG. 4A to FIG. 4C are perspective views showing examples of a pressing spring plate.

5A to 5C are perspective views showing how to fold the presser spring plate.

FIG. 6 is a perspective view showing a configuration in an example in which the pressing spring plates are separately formed when the passage body is assembled to the pressing spring plates.

FIG. 7 is a perspective view showing a configuration in an example in which a pressing spring plate is formed by folding a long sheet in the left and right directions.

FIG. 8 is a perspective view showing a configuration in an example in which a pressing spring plate is formed by folding a long sheet in an up and down direction.

9A to 9C are perspective views showing a state in which both sides of the passage body are sandwiched by pressing spring plates.

FIG. 10 (a) shows a state in which the fixing strip is folded over the pressing spring plate, and (b) shows the folded-back portion of the tip of the fixing strip folded into the lower end of the pressing spring plate to prevent heat welding or the like. Shows a state of being fixed by means of means, and (c) shows that the engaging piece at the tip of the pulling means formed by extending the holding spring plate is engaged with the other end of the holding spring plate and assembled, and the pulling means is attached to the holding spring plate. It is each a perspective view showing the state where it is being held in the shape of a circular arc at the position of the chord.

FIG. 11 is a perspective view showing a state where a rod-shaped body is inserted into the passage body.

FIG. 12 is a view showing a state where a rod-shaped body is inserted into the passage body.
It is a BB enlarged sectional view of No.

13 (a) to 13 (d) are cross-sectional views showing stepwise a state in which a rod-shaped body is inserted into the passage body.

[Explanation of Codes] 1 Passage 2 Passage 3 Shift stopper 4 Guide 5,6 Presser spring plate 7 Fixing strip 8 Slit 9 Pulling means 10 Engagement 11 Bar 21 Fold back 101 Poly bag 102 Poly bag 103 Bottom 104 Paper Pack 105 Paper Pack 106 Bottle 107 PET Bottle 108 Paper Cup 109 Lid 111 Opening / Closing Mechanism

Claims (9)

[Claims] 1. A pair of pressing spring plates are sandwiched between both sides of an openable / closable passage body made of a soft sheet, and the pressing spring plates are held in a bent state with a predetermined curvature so as to be in close contact with each other. When the body is closed and the rod-shaped body is inserted into the passage body between the holding spring plates, the inner holding spring plate is deformed to open the passage body, and when the rod-shaped body is pulled out, the inner holding spring plate is restored by the restoring force. In the opening / closing mechanism with the holding spring plate of the container opening, which closes the passage body so that the passage body can be closed, in the length direction of the passage body on both sides of the portion of the holding spring plate where the passage body is clamped. An opening / closing mechanism with a pressing spring plate for a container opening, characterized in that both ends of the pressing spring plate are fixed by fixing fixing strips along it. 2. The openable and closable passage body made of a soft sheet is sandwiched between a pair of pressing spring plates, and the pressing spring plates are held in a bent state with a predetermined curvature so as to be in close contact with each other. When the body is closed and the rod-shaped body is inserted into the passage body between the holding spring plates, the inner holding spring plate is deformed to open the passage body, and when the rod-shaped body is pulled out, the inner holding spring plate is restored by the restoring force. In the opening / closing mechanism with the holding spring plate of the container opening, which closes the passage body so that the passage body can be closed, the holding spring plate is extended along the length direction of the passage body and the fixing strip is attached. It is characterized in that the fixing strips are folded and fixed to both sides of the portion of the pressing spring plate where the passage body is clamped, so that both ends of the pressing spring plate are fixed by the fixing strips. Presser spring plate for container opening Opening and closing mechanism. 3. The holding spring plate is provided with a traction means formed by extending one side end portion to be slightly shorter than the holding spring plate, and an engaging piece at a tip of the traction means is provided at an opposing end portion of the holding spring plate. The opening / closing mechanism with a pressing spring plate for a container opening according to claim 1 or 2, wherein the pressing spring plate is held in a state of being bent with a predetermined curvature by being engaged with each other. 4. The opening / closing mechanism with a pressing spring plate for a container opening according to claim 1, wherein the pair of pressing spring plates are separately formed. 5. The opening / closing mechanism with a pressing spring plate for a container opening according to claim 1, wherein one pressing spring plate is formed by folding a long sheet in the left-right direction. 6. The opening / closing mechanism with a pressing spring plate for a container opening according to claim 1, wherein one pressing spring plate is formed by folding a long sheet in the vertical direction. 7. A container spring opening / closing with a pressing spring plate according to any one of claims 1 to 6, wherein the pressing spring plate is selected from a plastic sheet, a metal sheet, or a composite sheet using these as constituent materials. mechanism. 8. The holding spring plate for a container opening according to claim 1, wherein the openable and closable passage body made of a soft sheet is formed by sticking two soft sheets at a boundary portion of the passage. With opening and closing mechanism. 9. The pressing spring for the container opening according to claim 1, wherein the soft sheet is selected from a rubber sheet, a plastic sheet, a waterproof paper, a waterproof cloth, an aluminum foil, and a composite sheet thereof. Open / close mechanism with plate.