JP3735929B2 - Opening and closing mechanism with presser spring plate at container opening - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing mechanism with a presser spring plate of a container opening applied to various containers such as bottles, PET bottles, cans, and paper packs.
[0002]
[Prior art]
Conventionally, the openings of containers such as bottles, PET bottles, cans, paper packs, etc. are made from vapor deposition films etc. that have caps made of materials different from those of containers, that form pull-top type openings, or that can be inserted with straws. It is sealed by sticking a sealing seal.
[0003]
[Problems to be solved by the invention]
However, in the case where a cap made of a material different from that of a container such as a bottle or PET bottle is attached, it takes time to attach and remove the cap to the container opening, and it is easy to dissipate. There was a drawback that it was difficult to dispose of a cap made of a material different from that of the container.
[0004]
Also, in steel cans and aluminum cans that have a pull-top opening, they are easy to dissipate and cannot be closed once they are opened, so they are easy to spill out and are difficult to carry and store many times. However, it was difficult to eat and drink separately.
[0005]
Further, in the case where a straw is inserted into the opening seal of a container such as a paper pack so that a straw can be inserted into the seal, the contents will be removed by grabbing the paper pack. There is a drawback that it spills out from the inserted opening and spills outside, and it is difficult to dispose of a sealing seal made of a material different from that of the container in the disposal process after use.
[0006]
The opening and closing mechanism with a presser spring plate of the container opening of the present invention is intended to eliminate the above-mentioned drawbacks of the conventional example, and can be disposed of as incinerated as it is together with the container at the time of disposal after use, Since the opening automatically closes after use, there is no spillage even if the container is gripped or carried, so the holding spring for the container opening that can be stored and eaten and divided many times An open / close mechanism with a plate is to be provided.
[0007]
[Means for Solving the Problems]
That is, the opening / closing mechanism with a presser spring plate of the container opening according to the present invention sandwiches the protruding strips of a pair of presser spring plates that are bent in the direction in which both ends of the pathable body made of a soft sheet are bent back. By attaching, the passage body is normally closed, and when the rod-shaped body is inserted into the passage body between the presser spring plates, the presser spring plate is deformed to open the passage body, and when the rod-shaped body is pulled out, the presser spring plate is restored. Thus, the passage body is closed.
[0008]
In the opening / closing mechanism with a presser spring plate of the container opening, the protrusions of the pair of presser spring plates are also abutted along the same direction.
[0009]
In the opening / closing mechanism with a presser spring plate of the container opening, the protrusions of the pair of presser spring plates are also abutted in a direction crossing each other.
[0010]
In the opening / closing mechanism with the presser spring plate of the container opening, the presser spring plate is selected from a plastic thin plate, a metal plate, or a composite plate made of these.
[0011]
In the opening / closing mechanism with a presser spring plate of the container opening, the openable / closable passage body made of a soft sheet is formed by attaching two soft sheets at a boundary portion of the passage.
[0012]
In the opening / closing mechanism with the presser spring plate of the container opening, the soft sheet is selected from a rubber sheet, a plastic sheet, water resistant paper, a waterproof cloth, an aluminum foil, or a composite sheet thereof.
[0013]
According to the opening / closing mechanism with the retaining spring plate of the container opening according to the present invention, it is possible to perform disposal such as incineration together with the container at the time of disposal after use, and the opening automatically closes after use. Even if the container is gripped or carried, it will not spill, so it is possible to provide an opening / closing mechanism with a retainer spring plate for the container opening that can be stored and eaten and divided many times. It was.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an opening / closing mechanism with a presser spring plate of a container opening according to the present invention will be described based on the drawings.
[0015]
FIG. 1 is a schematic view showing an example in which an opening / closing mechanism with a pressing spring plate (hereinafter referred to as an opening / closing mechanism) for a container opening according to the present invention is applied to a container. In the figure, (A) shows an example of a plastic bag, (I-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a sheet-like plastic bag 101, and (I-2) shows a circular bottom 103. The case where the opening / closing mechanism 111 of the present invention is applied to the plastic bag 102 is shown.
[0016]
(B) shows an example of paper packs, (b-1) shows a case where the opening / closing mechanism 111 of the present invention is applied to a small paper pack 104 such as a fruit juice drink, and (b-2) shows a larger milk or the like. The case where the opening / closing mechanism 111 of the present invention is applied to the paper pack 105 is shown.
[0017]
(C) shows examples of bottles and PET bottles, (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., (C-2) shows a large size. The case where the opening and closing mechanism 111 of the present invention is applied to a PET bottle 107 is shown.
[0018]
(D) shows an example of paper cups, and shows a 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 the lid 109.
[0019]
Hereinafter, the details of the opening / closing mechanism 111 will be described.
[0020]
FIG. 2 shows an openable / closable path body made of a soft sheet, which constitutes the opening / closing mechanism 111. The passage body 1 can be formed by bonding 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 stoppers 3 for holding the passage body 1 by being sandwiched between the following presser spring plates. Reference numeral 4 denotes a guide portion of the passage body 1 protruding from the position of the stopper piece 3.
[0021]
As the passage body 1, it is desirable to select a soft sheet to be used from a rubber sheet, a plastic sheet, water-resistant paper, a waterproof cloth, an aluminum foil, or a composite sheet thereof.
[0022]
In FIG. 2, (A) shows the case where the passage portion 2 of the passage body 1 is closed, and (B) shows the state where the passage portion 2 of the passage body 1 is open and the contents of the container are passing therethrough. ing.
[0023]
FIG. 3 shows a case where the passage portion 2 of the passage body 1 is heat-welded by bonding two soft sheets. In the figure, (A) shows a tapered passage portion 2 that is squeezed toward the opposite side of the guide portion 4. (B) shows the passage portion 2 which is squeezed toward the opposite side of the guide portion 4 and further has a cylindrical shape. (C) shows a passage portion 2 which is squeezed after a portion having a predetermined width toward the opposite side of the guide portion 4 and further has a cylindrical shape. (D) shows the passage portion 2 formed in a cylindrical shape having the same diameter as the guide portion 4.
[0024]
The width of the passage portion 2 of the passage body 1 is desirably a size that can be inserted without difficulty according to the diameter of the rod-shaped body to be inserted and that has a margin for allowing ventilation around the inserted rod-shaped body. In this way, when the container is filled with the contents, the filling operation can be performed without difficulty by discharging the air in the container from the surroundings while filling the contents from the rod-like body portion.
[0025]
As a means for forming the passage portion 2 in the passage body 1, a means for bonding two soft sheets and heat-welding them at the portion of the stopper piece 3 is desirable, but it is needless to say that other forming means may be used. When welding the stopper piece 3, it is sufficient to weld only the boundary with the passage portion 2.
[0026]
FIG. 4 shows an example of a presser spring plate for sandwiching the passage body 1 and opening / closing, in particular, automatically sealing. As shown in (a), the pair of presser spring plates 5 and 6 are sandwiched from both sides of the passage body 1 by abutting along the same direction with protrusions formed by bending both ends in the direction of turning back. (A) shows the case where the overall shape is a rectangle, (B) shows the case where the overall shape is a trapezoid, and (C) shows the BB cross-sectional view.
[0027]
It should be noted that the pair of presser 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 presser spring plates 5 and 6 need to have a predetermined thickness in terms of their functions.
[0028]
The material of the pair of presser spring plates 5 and 6 can be selected from a plastic thin plate, a metal plate, or a composite plate using these as constituent materials. 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 be made of the same material.
[0029]
The thickness of the presser spring plates 5 and 6 is preferably about 0.1 to 0.5 mm when the plastic thin plate such as polyethylene is used. If the dimensions of the presser spring plates 5 and 6 are rectangular, for example, the horizontal axis: vertical axis ratio is preferably about 2 to 1.5: 1. For example, the horizontal axis: the actual size of the vertical axis may be 40 mm: 25 mm, 35 mm: 20 mm, 30 mm: 15 mm, or the like.
[0030]
In addition, as shown in (d), the pair of presser spring plates 5 and 6 are squeezed from both sides of the passage body 1 by abutting protrusions formed by bending both ends in a direction in which both ends are bent. You may do it. (D) shows a cross-sectional view taken along the line C-C when the overall shape is a rectangle, (e) shows a trapezoidal shape, and (f) shows the CC cross-sectional view.
[0031]
The radius of curvature when the presser spring plates 5 and 6 are bent in a direction in which both ends are bent in advance is desirably 15 mm to 30 mm. When the curvature is small, the force of sandwiching the passage body 1 of the presser spring plates 5 and 6 is strong, and the reaction to the insertion and removal of the rod-like body 7 is good. On the contrary, the radius of curvature can be increased to adjust the force for holding the passage body 1 of the presser spring plates 5 and 6 and the force adjustment when the rod-like body 7 is inserted and removed.
[0032]
That is, this opening / closing mechanism has a structure in which the passage body 1 is sandwiched between the presser spring plates 5 and 6 as shown in FIG. 4, and the passage portion 2 is normally closed by the presser spring plates 5 and 6. It has become. Of course, the presser spring plates 5 and 6 may sandwich the inserted passage body 1 in either the vertical direction or the horizontal direction shown in the figure.
[0033]
In terms of material, it is desirable to use a single material for both the passage body 1 and the presser spring plates 5 and 6. For example, a material similar to a polyethylene bag used at home or the like is very suitable for solving the above-mentioned problems of the present invention in terms of versatility, processability, processing property after being trashed, etc. I have confirmed that.
[0034]
FIG. 5 shows a state in which the opening / closing mechanism 111 of the present invention is configured by sandwiching the passage body 1 between the presser spring plates 5 and 6. That is, both sides of the passage body 1 are sandwiched between the presser 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. When a straw or other rod-like body 7 is inserted into the passage body 1 from the guide portion 4, the presser spring plates 5 and 6 are spread together with the passage body 1, and finally the passage body 1 is completely formed as shown in FIG. It becomes cylindrical and the inside of the container is opened.
[0035]
FIG. 6 shows means for overlapping the pair of presser spring plates 5 and 6. As the means, welding both end portions of the presser spring plates 5 and 6 sandwiching the passage body 1 as in (A) and (B) is mentioned. Alternatively, as shown in (c) and (d), both end portions of the outer presser spring plate 5 may be folded back and the inner presser spring plate 6 may be inserted into the insertion guide portion 8 formed by folding back. Further, as shown in (e) and (f), both end portions of the presser spring plates 5 and 6 may be sandwiched by the U-shaped crimping means 9.
[0036]
FIG. 7 shows a state in which a straw or other rod-like body 7 is inserted into the passage body 1. The opening / closing mechanism 111 is configured to secure the passage by releasing the sticking of the passage portion 2 which is in close contact with the presser spring plates 5 and 6 by inserting the rod-like body 7 into the passage portion 2 of the passage body 1. It is. In this embodiment, a straw is used as such a rod-like body 7 to secure a more reliable passage.
[0037]
In FIG. 8 for explaining the above operation in more detail, the tip of the rod-like body 7 made of a straw is inserted from the upper end of the guide portion 4 of the passage body 1. Actually, a cap or a mounting opening is attached to this portion to make the rod-like body 7 easy to insert. When the rod-like body 7 is gradually pushed down as shown in FIGS. 1A to 1C, the passage portion 2 of the passage body 1 is expanded together with the presser spring plates 5 and 6.
[0038]
When the rod-shaped body 7 is further pushed down, the presser spring plates 5 and 6 are spread over the entire length along the rod-shaped body 7 so that the contents of the container can freely circulate as shown in FIG. .
[0039]
On the contrary, when the container opening is to be closed, the rod-like body 7 is simply pulled out. That is, the presser spring plates 5 and 6 are gradually returned to their original positions and brought into close contact with each other, and the passage portion 2 of the passage body 1 is automatically brought into full contact again by following steps (d) to (b) in reverse. Will be. At this time, when pressure is applied to the opening / closing mechanism 111 provided in the container opening to push the contents out of the container, the pressure is transmitted to the passage body 1 via the presser spring plates 5 and 6, and the passage body 1. The passage portion 2 is further sealed.
[0040]
【The invention's effect】
According to the opening / closing mechanism with the presser spring plate of the container opening of the present invention, the disposal such as incineration can be performed as it is together with the container at the time of disposal after use.
[0041]
In addition, since the container opening automatically closes after use, there is no spillage even if the container is grasped or carried, so that it can be stored and eaten and divided in many times.
[0042]
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 the trash is simplified, so that a highly recyclable container can be provided. it can.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an example in which an opening / closing mechanism with a presser spring plate of a container opening according to the present invention is applied to a container; (A) shows an example of a plastic bag; (B) shows an example of a paper pack (C) shows examples of bottles and PET bottles, and (d) shows examples of paper cups.
FIG. 2 shows an openable / closable passage body made of a soft sheet, which constitutes an opening / closing mechanism for a container opening according to the present invention. FIG. 2A shows a case where the passage portion of the passage body is closed. It is a perspective view and AA sectional view showing the state where the passage portion of a passage body is open and the contents of a container are passing, respectively.
FIGS. 3A to 3D are schematic perspective views showing a case where two flexible sheets are bonded to a passage body and heat-welded.
FIGS. 4A and 4B are perspective views showing examples of a presser spring plate, and FIGS. 4C and 4F are cross-sectional views taken along BB and CC, respectively. FIGS. It is.
FIGS. 5A and 5B show the assembled state of the opening / closing mechanism of the present invention, where FIG. 5A is a perspective view before assembly, FIG. 5B is an assembled state, and FIG.
FIGS. 6A to 6F are a perspective view and a cross-sectional view taken along line E-E, respectively, showing means for bringing the presser spring plates 5 and 6 into close contact in the opening / closing mechanism of the present invention.
7 is a DD enlarged cross-sectional view of FIG. 5C showing a state where a rod-like body is inserted into a passage body.
FIGS. 8A to 8D are longitudinal sectional views showing in stages the state in which a rod-like body is inserted into a passage body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Passage body 2 Passage part 3 Shifting prevention piece 4 Guide part 5,6 Pressing spring board 7 Rod-shaped body 8 Insertion guide part 9 Crimping means 10 Pulling sheet 11 Folding part 12 Folding part 101 Poly bag 102 Poly bag 103 Bottom 104 Paper pack 105 Paper pack 111 Opening and closing mechanism 106 Bottle 107 PET bottle 108 Paper cup 109 Lid 111 Opening and closing mechanism

Claims (6)

The passage body is normally closed by sandwiching the protruding strips of a pair of presser spring plates that are bent in the direction that turns both ends of the openable and closable path body made of a soft sheet. When the rod-shaped body is inserted into the passage body, the presser spring plate is deformed to open the passage body, and when the rod-shaped body is pulled out, the presser spring plate is restored and the passage body is closed. Opening and closing mechanism with presser spring plate at container opening. The opening / closing mechanism with a presser spring plate for a container opening according to claim 1, wherein the protrusions of the pair of presser spring plates are abutted along the same direction. 2. The opening / closing mechanism with a presser spring plate for a container opening according to claim 1, wherein the ridges of the pair of presser spring plates are butted against each other in a direction crossing each other. The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 3, wherein the presser spring plate is selected from a plastic thin plate, a metal plate, or a composite plate made of these. The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 4, 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. The opening / closing mechanism with a presser spring plate for a container opening according to any one of claims 1 to 5, wherein the soft sheet is selected from a rubber sheet, a plastic sheet, waterproof paper, waterproof cloth, aluminum foil, or a composite sheet thereof.

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