JPH09240680A - Opening/closing mechanism with pressing spring plate for opening part of container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an opening/closing mechanism that automatically closes an opening of a container after the container is used, and allows a user to eat food in several times, by a method wherein an openable passage element made of flexible sheet is clamped by press spring plates form both sides and the spring plates are kept in curved state having a specified curvature by a holder. SOLUTION: An opening/closing mechanism to be applied to a polyethylene bag, etc., includes an openable path element 1 made of flexible sheet, slip stoppers 3 that are formed out both sides of a path part 2 to hold the path element 1 pinched between press spring plates 5 and 6 and guide parts 4 that are stretched from the positions of the slip stoppers 3. For example, the pair of the press spring plates 5 and 6 are arranged to clamp the path element 1. When a bar-like element is inserted into the path element 1 held between the spring plates 5 and 6, the inside spring plate is deformed, causing the path element 1 of the opening/closing mechanism to open. When the bar-like element is pulled out, the inside spring plate comes in contact with the outside spring plate due to restoring force of the inside spring plate, causing the path element 1 to be closed.

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 pressing spring plate for a container opening of the present invention, both sides of an openable / closable passage body made of a soft sheet are sandwiched between the pressing spring plates and the pressing spring plates are provided. Is held in close contact by holding it in a state of being bent with a predetermined curvature by the holding means, 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 is deformed. The passage body is opened, and when the rod-shaped body is pulled out, the inner holding spring plate is brought into close contact with the outer holding spring plate by the restoring force so that the passage body is closed.

The opening / closing mechanism with the pressing spring plate for the container opening is characterized in that the pressing spring plate is folded back to sandwich both sides of the passage body.

In the opening / closing mechanism with the pressing spring plate for the container opening, the pressing spring plate folded back into two pieces so that the holding means sandwiches both sides of the passage body is further folded back and connected to the opposing end portions. Another feature is that the holding spring plate is held in a state of being bent with a predetermined curvature.

In the opening / closing mechanism with the pressing spring plate for the container opening, the holding means pulls both ends of the pressing spring plate that sandwiches both sides of the passage body, and holds the pressing spring plate in a bent state with a predetermined curvature. It is also characterized by being a thing.

In the opening / closing mechanism with the pressing spring plate for the container opening, the pressing spring plate is a thin plastic plate, a metal plate,
Alternatively, it is also characterized in that it is selected from composite plates using these as constituent materials.

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

In the opening / closing mechanism with a pressing spring plate for the container opening, the soft sheet is characterized by being selected from a rubber sheet, a plastic sheet, a waterproof paper, a waterproof cloth, an aluminum foil, or a composite sheet of these.

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, and the opening is automatically opened after use. Since it does not spill even if you grab or carry the container to close it, it is possible to provide an opening / closing mechanism with a holding spring plate for the container opening that can be stored and eaten multiple times. It has become possible.

[0015]

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 the opening / closing mechanism with a pressing spring plate (hereinafter referred to as opening / closing mechanism) of the container opening of 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 an example 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 soft drinks, etc. )
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 the lid 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 / closable passage body made of a soft sheet, which constitutes the opening / closing mechanism 111.
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.

For the passage body 1, it is desirable to select the soft sheet to be used from a rubber sheet, a plastic sheet, a waterproof paper, a waterproof cloth, an aluminum foil, or a composite sheet of these.

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

FIG. 3 shows the case where the passage portion 2 of the passage body 1 is adhered by heating 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.

It is desirable that the width of the passage portion 2 of the passage body 1 be such that insertion can be reasonably performed according to the diameter of the rod-shaped body to be inserted and there is a margin to allow ventilation around the inserted rod-shaped body. 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, it is desirable that two soft sheets are bonded together and heat-welded at the shift-preventing piece 3 portion, but other forming means may of course be used. Is. When welding the slip stopper 3, it is sufficient to weld only the boundary with the passage portion 2.

FIG. 4 shows an example of a holding spring plate for sandwiching the passage body 1 for opening and closing, especially for automatically sealing. The pair of pressing spring plates 5 and 6 sandwich the passage body 1 in a sandwich shape as shown in (a). (A) if the overall shape is rectangular, (b) if the overall shape is trapezoidal,
(C) shows the BB sectional drawing, respectively.

The pair of pressing spring plates 5 and 6 may have the same thickness or different thicknesses. In terms of the relationship with the passage body 1, the passage body 1 needs to be thin because it requires flexibility, and the pressing spring plates 5 and 6 need to have a predetermined wall thickness in terms of their functions. Of course, the inner pressing spring plate 6 is preferably thicker than the passage body 1.

The material of the pair of pressing spring plates 5 and 6 can be selected from a plastic thin plate, a metal plate, or a composite plate composed of these. Examples of the plastic thin plate 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.

As the thickness of the pressing spring plates 5 and 6, when the plastic thin plate such as polyethylene is used,
It is desirable to use one having a thickness of about 0.1 to 0.5 mm. 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 is the actual size of the vertical axis 40 mm: 25 mm, 35
The dimensions may be mm: 20 mm, 30 mm: 15 mm and the like.

When the pressing spring plates 5 and 6 are curved, the radius of curvature is preferably 15 mm to 30 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 of inserting and removing the rod 7 is good. On the contrary, by increasing the radius of curvature, it is possible to adjust the force with which the pressing spring plates 5 and 6 sandwich the passage body 1 and the force applied when the rod-shaped body 7 is inserted and removed.

Further, as shown in FIG. 5 (a), the pair of pressing spring plates 5 and 6 may be formed by folding back a long one so as to sandwich both sides of the passage body 1. (A) if the overall shape is rectangular, (b) if the overall shape is trapezoidal,
(C) shows the open state when viewed from the top, and (D) shows the case when viewed from the side.

That is, this opening / closing mechanism is shown in FIGS.
As shown in FIG. 3, the passage body 1 is sandwiched between the pressing spring plates 5 and 6, and in the normal state, the pressing spring plates 5 and 6 are held.
The passage portion 2 is closed by the.

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 six. For example, a material similar to a polyethylene bag used in everyday households is extremely suitable for solving the above-mentioned problems of the present invention in terms of versatility as a material, processability, processability after being trashed, and the like. I have confirmed that.

FIG. 6 shows a state in which the opening / closing mechanism 111 of the present invention is constructed by sandwiching the passage body 1 between the pressing spring plates 5 and 6. That is, both sides of the passage body 1 are sandwiched between the pressing spring plates 5 and 6 as shown in (a) and assembled as shown in (b). In the assembled state, the passage body 1 is held flat as shown in FIG. FIG. 3C shows a case where a pair of pressing spring plates 5 and 6 is folded back to sandwich both sides of the passage body 1.

FIG. 7 shows a holding means for holding the pressing spring plate in a bent state with a predetermined curvature. As a means thereof, as shown in (a), the backing plate 7 is superposed along one side of the pressing spring plates 5 and 6 with the passage body 1 sandwiched therebetween, and bar-shaped arms 8 extending vertically are formed at both ends thereof. The pulling means 9 may be pulled by attaching both ends of the pulling means 9 to the rod-shaped arm 8 on the surface opposite to the pressing spring plates 5 and 6.

Further, as shown in (b), the pulling sheet 10 shorter than the holding spring plates 5 and 6 is arranged on the inner side of the holding spring plates 5 and 6 on the side of the holding spring plate 6, and both ends of the pulling sheet 10 are folded back. Hold the formed folded-back portion 11 and the spring plate 5,
It may be fitted into both ends of 6 and held.

Further, as shown in (c), the tubular traction belt 12 is fitted into the pressing spring plates 5 and 6 and the folded traction belt 12 is made shorter than the width of the pressing spring plates 5 and 6. The pressing spring plates 5 and 6 may be curved and held on one side when fitted.

FIG. 8 shows still another example of the holding means. (A) to (c) show the assembling process. As shown in (a), the outer holding spring plate 5 having the slightly short pulling seat portions 13 formed at one end on both sides of the passage body 1.
And the inner pressing spring plate 6 are arranged and overlapped, and the passage body 1 is sandwiched. Then, as shown in (c), the folded-back portions 14 of the pulling seat portion 13 are fitted and held at the opposing ends of the pressing spring plates 5 and 6. Further, as shown in (b), a pair of long pressing spring plates 5 and 6 are folded back to sandwich the passage body 1, and a slightly short pulling seat portion 13 is formed at the other end of the outer pressing spring plate 5. Alternatively, the folded-back portion 14 at the tip may be fitted and held on the side opposite to the pressing spring plates 5 and 6.

In the obtained opening / closing mechanism 111, the passage body 1 is held in an arc shape in a curved state as the pressing spring plates 5 and 6 are curved as shown in (d) and (e). Shows the state of being held in an arc shape at the position of the chord. By doing so, even if the force for holding the shape of the pressing spring plates 5 and 6 is weak, it is possible to surely keep the curve, and it is possible to firmly crimp the passage body 1.

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

9 and 10 show a state in which a straw or other rod-shaped body 15 is inserted into the passage body 1. The opening / closing mechanism 111 secures the passage by inserting the rod-shaped body 15 into the passage portion 2 of the passage body 1 to release the close contact of the passage portion 2 which is tightly attached by the pressing spring plates 5 and 6. Is. In this embodiment, a straw is used as the rod-shaped body 15 to secure a more reliable passage.

In FIG. 11 for explaining the above operation in more detail, the tip of the rod-shaped body 15 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 a mounting port to this portion, the rod-shaped body 15
Into a shape that allows easy insertion. Then, when the rod-shaped body 15 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 bar 15 is further pushed down,
The inner pressing spring plate 6 is spread over the entire length along the rod-shaped body 15, 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 15 may simply be 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.

[0046]

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.

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

Further, when the entire container including the 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.

[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.

4A and 4B are perspective views showing an example of a pressing spring plate, and FIG. 4C is a sectional view taken along line BB.

5A and 5B are perspective views showing another example of the presser spring plate, FIG. 5C is a top view in an open state, and FIG. 5D is a top view in a closed state.

FIG. 6 shows an assembled state of the opening / closing mechanism of the present invention, (a)
FIG. 3A is a perspective view showing an assembled state, FIG.

7A to 7C are a perspective view and a CC cross-sectional view showing a means for aligning an inner holding spring plate with an outer holding spring plate in the opening / closing mechanism of the present invention.

8A to 8E are a perspective view and a D-D cross-sectional view showing another means for aligning the inner holding spring plate with the outer holding spring plate in the opening / closing mechanism of the present invention. .

FIG. 9 is a perspective view showing a state in which a rod-shaped body is inserted into a passage body.

10 is an EE enlarged cross-sectional view of FIG. 9 showing a state where the rod-shaped body is inserted into the passage body.

FIGS. 11A to 11D are cross-sectional views showing a state in which a rod is inserted into a passage body in a stepwise manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Passage body 2 Passage part 3 Shift prevention piece 4 Guide part 5,6 Pressing spring plate 7 Backing plate 8 Bar-shaped arm 9 Traction means 10 Traction sheet 11 Folding portion 12 Traction belt 13 Traction sheet portion 14 Folding portion 15 Rod-shaped body 101 Poly Bag 102 Plastic bag 103 Bottom 104 Paper pack 105 Paper pack 111 Opening / closing mechanism 106 Bottle 107 PET bottle 108 Paper cup 109 Lid 111 Opening / closing mechanism

Claims (7)

[Claims] 1. A presser spring plate is sandwiched between both sides of an openable / closable passage body made of a soft sheet, and the presser spring plate is bent by a predetermined curvature and is held by a holding means so as to be closely attached, Normally, the passage body is closed.When 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. An opening / closing mechanism with a pressing spring plate for a container opening, characterized in that the passage body is closed by being brought into close contact with the pressing spring plate on the outside. 2. The opening / closing mechanism with a holding spring plate for a container opening according to claim 1, wherein a long pressing spring plate is folded back to sandwich both sides of the passage body. 3. A holding spring plate, which is folded back into two pieces so that the holding means holds both sides of the passage body, is folded back to be shorter and connected to the opposing end portions, and the holding spring plate is bent with a predetermined curvature. Claim 1 or 2 which hold | maintains in the state
An opening / closing mechanism with a pressing spring plate for the container opening described in. 4. The holding means pulls both ends of a holding spring plate for sandwiching both sides of the passage body, and holds the holding spring plate in a state of being bent with a predetermined curvature. An opening / closing mechanism with a pressing spring plate for the container opening described in. 5. The container spring opening / closing with a pressing spring plate according to claim 1, wherein the pressing spring plate is selected from a plastic thin plate, a metal plate, or a composite plate using these as constituent materials. mechanism. 6. The pressing spring plate for a container opening according to claim 1, wherein the openable / closable passage body made of a soft sheet is formed by attaching two soft sheets at a boundary portion of the passage. Opening and closing mechanism. 7. The pressing spring for a 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, or a composite sheet thereof. Opening and closing mechanism with a plate.