JPH0724711U - Bag closure - Google Patents

Abstract

(57) [Summary] [Objective] To provide a closure made of synthetic resin, which can easily close the bag with the neck bent into a U shape and can be opened. [Structure] Locking parts 3, 4, 3 are provided above and below the plate-shaped main body 2.
a and 4a are formed and the accommodating portions 5 and 5a are formed above and below the central portion.
Is formed, and guide edges 6, 6, 6a, 6a whose intervals are gradually reduced are formed at the facing portions of the engaging portions 3, 4, 3a, 4a. The guide edges 6, 6, 6a, 6a are most Slits 7 and 7a whose front ends are opened are formed in the accommodating portions 5 and 5a at the approaching portions, and further, the locking portions 3, 4, 3a and 4a.
The thin-walled parts 8, 8, 8a, 8 facing the accommodating parts 5, 5a
A rocking piece f which forms a and has guide edges 6, 6, 6a, 6a
A closure for bags made of synthetic resin that is formed in four directions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a jig for closing the mouth of bags.

[0002]

[Prior art]

 Bags made of synthetic resin film are used in large quantities to package bread and snacks. The type of food is bread, snacks, fresh fish, paste, boiled boiled foods, etc., which are opened when the contents are taken out even after they are closed, and then used with the mouth open. There is also a type that, like a snack, is made into a small amount that can be used and then closed.

[0003]

[Problems to be solved by the device]

 For example, when the product is packed in a bag and sold, such as breads, the mouth of the bag is not completely sealed like heat sealing, but it is continuous with a C-shaped or U-shaped slit. It is closed by a closure made of a synthetic resin thin plate having a housing portion. This closure is cut out from a thin synthetic resin plate in a continuous state by a press, and is loaded into the packaging device and automatically fixed by being pushed into the neck of the bag. When removing the contents from the bag, it is necessary to twist a part of the closure to remove the closure from the neck of the bag mouth and open it.

However, during the operation of removing the closing tool, the protrusion at the tip of the sharp end of the portion where the slit of the closing tool is provided may be caught and broken. Moreover, since the closure of this structure is attached by using a device, it is difficult to return it to its original state even if the closure is attached to reclose the bag mouth. Therefore, after opening a synthetic resin bag that contains food such as bread and using the required amount, consumers close the bag mouth with rubber bands or pinch tools, and in some cases It is used by bending the part and fixing it with a clip. However, if the bag mouth is not fully closed, food such as bread may come into contact with the outside air and its quality may deteriorate, or it may be dried and cannot be eaten.

In addition, in the case of food sold in a grocery store, for example, food that needs to be sealed, such as fried food or food that can be drunk, the mouth of the bag is heat-sealed. In the case of this bag, the mouth must be torn when taking out the contents, but once the mouth of the bag is torn, it cannot be reused and the contents should be put in another container and stored in a refrigerator etc. It will have to be done.

A bag made of synthetic resin for containing food in a supermarket or the like is extremely thin, and even if an attempt is made to close the mouth of this bag with a rubber band, the bag is not stiff and the winding operation is complicated. The wrapped rubber band is bound so that it can bite into the bag. Therefore, it is extremely difficult to remove this, and the rubber band must be cut.

The present invention solves the drawbacks of the conventional bag mouth closure device, and its purpose is to easily operate the mouth of a bag made of a relatively flexible synthetic resin film. It provides a closure that can be closed securely and easily opened.

[0008]

[Means for Solving the Problems]

 The closure according to the present invention for achieving the above-mentioned object has the plate-like main body 2 having the upper and lower locking portions 3, 4, 3a, 4a and the central upper and lower holding portions 5, 5a. , The guide edges 6, 6, 6a, 6a having a gradually decreasing distance are formed at the facing portions of the engaging portions 3, 4, 3a, 4a, and the closest portions of the guide edges 6, 6, 6a, 6a. Slits 7 and 7a whose front end portions are open are formed in the accommodating portions 5 and 5a, and further, thin portions 8, 8 and 8a facing the accommodating portions 5 and 5a are formed in the locking portions 3, 4, 3a and 4a. , 8a to form a swinging piece f having guide edges 6, 6, 6a, 6a.

[0009]

[Operation] The swing piece f having the guide edges 6 and 6a is supported by the thin portions 8 and 8a in a hinge shape and swings with respect to the main body 2 in the plate thickness direction. Therefore, when the bag 10 is put into the accommodating portions 5 and 5a, it is pushed by the neck portion 10a of the bag 10 and the slits 7 and 7a are largely opened and guided into the accommodating portions 5 and 5a. When the neck portion 10a is accommodated therein, the swinging piece f returns to its original shape and the bag is enclosed in the accommodation portion 5 and closed.

[0010]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a front view of a closure 1 according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof. The closure 1 has a butterfly-shaped or ribbon-shaped body 2 made of a synthetic resin and has locking portions 3, 4, 3a, 4a formed on the upper and lower sides thereof. The accommodating portions 5 and 5a are opened in an oval shape.

A guide edge 6 is formed in a circular arc shape and a trumpet-like concave shape in a front view on the surfaces facing the engaging portions 3, 4, 3a and 4a, and a slit 7 formed at the end portion thereof. , 7a and are connected to the accommodating portions 5, 5a. Further, the locking portions 3, 4, 3a, 4a are formed with thin-walled portions 8 in a radial manner, and swinging pieces f are formed at the respective tip portions of the locking portions 3, 4, 3a, 4a.

In addition, a concave portion 9 is formed on both sides of the main body 2, and a ribbon-shaped thin portion 10 is further formed in the central portion to reduce the amount of resin material used for molding the closure 1 and to improve the appearance. The label can be affixed to this part, and it is easy to hold with your fingertips. The accommodating portions 5 and 5a are formed according to the size of the bag to be used. The reason for providing the upper and lower portions is to open the bag 10 by passing the necks of the bags into the U and U shapes of the accommodating portions 5 and 5a. This is because the mouth side is arranged along the side of the bag 10 as shown in FIG.

The accommodating portions 5 and 5a are generally oval, but other shapes such as a triangular shape, a gourd shape and the like can be adopted. However, the portion where the slits 7 and 7a are connected to the accommodating portions 5 and 5a is orthogonal to the ceiling surface of the slits 7 and 7a, or is formed into an acute angle (undercut shape) to keep the bag 10 in the normally closed state. It is good to consider so that the closing force is not released automatically even if a force is applied to.

The thin portion 8 formed at the root of the swing piece f is a kind of hinge portion, and the swing piece f can be swung in the front and back direction of the main body 2 as shown by the arrow in FIG. It is possible to insert the neck of the bag into the accommodating parts 5 and 5a, or to swing the rocking piece f to expand the gap of the slit 7 when the bag is to be withdrawn, and return to the state shown in FIG. 2 in the locked state. Thus, the neck portion 10a of the bag 10 accommodated in the accommodating portions 5 and 5a is securely held.

The material forming the closure 1 is manufactured by injection molding using a flexible material such as polyethylene, polypropylene or nylon. When the closure 1 is made of polypropylene, it is suitable that the plate has a thickness of 2 to 3 mm and the thin portion 8 has a plate thickness of about 0.3 to 0.5 mm. When the closure 1 according to the present invention is used, the swing piece f can swing back and forth with respect to the main body 2 as shown by an arrow in FIG.

When the bag 10 is closed by the closure 1 of the present invention, as shown in FIG. 4, the neck portion 10a of the bag 10 is held and squeezed, and the squeezed portion is, for example, the slit 7a on the accommodation portion 5a side. By pushing from the back side, the swinging pieces f provided on both sides of the slit 7a are pushed back to pass the inside of the accommodating portion 5a from the lower side to the upper side. Next, the rocking piece f is pushed away from the front side of the slit 7 on the housing portion 5 side, and the neck portion 10a of the bag 10 is guided from the upper side to the lower side to the lower side of the closing tool 1 to obtain the state of FIG. The neck 10a is held in a pressed state.

As a result, the bag 10 is pushed in a “U” shape into the other storage portion 5 via the storage portion 5a with the neck portion 10a squeezed, and the four rocks restored to the original state are shaken. The neck 10a is clamped by the moving piece f. The bag 10 presses the accommodation portions 5a, 5 and especially the inner edge of the accommodation portion 5a in an attempt to expand due to the internal pressure of the contents, gas, etc., but this force spreads the periphery of the inner edge of the accommodation portion 5a at a right angle. It is acting and is not a force that causes the swinging piece f to swing back and forth. On the other hand, the swinging piece f on the accommodation portion 5 side only has to clamp the neck portion 10a close to the mouth portion, and the bag 10 is clamped at two places with the neck portion 10a bent in a U shape.

FIG. 6 is a perspective view when the neck 10a of the bag 10 containing the bread B is closed by using the closure 1, and FIG. 5 is a side view of the closure 1 with the neck 10a closed. As shown in the drawing, the neck portion 10a passes through the closure 1 twice and is sandwiched between the accommodating portions 5a and 5, and the tip portion 10b is directed toward the bag 10 side, so that it has a good appearance. When opening the bag 10 closed by the closing tool 1 in this way, the bag 10 is easily opened by holding the tip portion 10b and pulling the swinging piece f as shown by the arrow in FIG. The bread B inside can be taken out and used.

When the closure 1 according to the present invention is used, the two accommodating portions 5 and 5a provided in the central portion, the slits 7 and 7a communicating with these, and the slits 7 and 7a arranged on both sides of the slits 7 and 7a. The neck 10a of the bag 10 can be clamped in a U shape in a side view by using the swinging piece f having the guide edges 6 and 6a. The swing piece f, which is arranged corresponding to each of the two accommodating portions 5 and 5a opened in the closure 1 according to the present invention, is connected to the main body 2 by the thin portion 8 and is formed in the plate thickness direction. Since it can move, the operation of holding the neck 10a of the bag 10 can be performed very easily.

When the closure 1 of the present invention is used, the locking operation can be easily performed by lightly twisting the neck portion 10a of the bag 10, and since the sealing action can be improved, it is possible to use fish or fish in the supermarket. It is possible to close the neck 10a of the thin bag 10 which is used for packaging wet products such as meat and products that produce juice, and vegetables as well as U-shaped bends.

Since the neck portion 10a of the bag 10 can be closed in a state of being bent in a U shape, when a large number of bags 10 are arranged, the mouth portion of the bag 10 does not project irregularly and is beautiful. In addition, it can be arranged compactly. In addition, since the neck portion 10a is formed into a U shape, it is easy to hold the displayed products such as bread.

[0022]

[Effect of device]

 The bag closure according to the present invention has locking portions 3, 4, 3a, 4a formed on the upper and lower sides of the plate-shaped main body 2 and the storage portions 5, 5a opened vertically on the central portion thereof. Guide edges 6, 6, 6a, 6a having a gradually decreasing distance are formed at the facing portions of the stoppers 3, 4, 3a, 4a, and the accommodating portion is provided at the closest portion of the guide edges 6, 6, 6a, 6a. Slits 7 and 7a are formed in the portions 5 and 5a, the distal ends of which are opened, and thin portions 8, 8, 8a and 8a facing the accommodating portions 5 and 5a are further formed in the locking portions 3, 4, 3a and 4a. The swing piece f having the inner edges 6, 6, 6a, 6a is formed.

Therefore, the closing portion of the bag 10, for example, the neck portion 10a is twisted or gathered, and the swinging pieces f formed on the upper and lower sides of the main body 2 are pressed by this portion to swing the same in the plate thickness direction. As a result, the neck portion 10a can be easily inserted into the accommodating portions 5 and 5a, and the swinging piece f is restored to the original plate shape by the action of the hinge composed of the thin portions 8 and 8a. Can be closed by bending it in a U shape in side view.

Since the swinging piece f is supported by the thin portions 8 and 8a so as to be swingable in the plate thickness direction with respect to the main body 2, almost no force is required to swing the swinging piece f in the plate thickness direction. Moreover, once the bag 10 is restored to its original shape, the force of the bag 10 to inflate against the edge surfaces of the accommodating portions 5 and 5a acts at a right angle, so that the slits 7 and 7a are expanded in the direction of expanding. Since the force for deflecting f is not generated, the mouth portion of the bag 10 can be reliably closed.

[Brief description of drawings]

FIG. 1 is a front view of a bag closure device according to an embodiment of the present invention.

2 is a plan view of the closure of FIG. 1. FIG.

3 is a side view of the closure of FIG.

FIG. 4 is a perspective view showing a state in which the mouth of the bag is closed.

FIG. 5 is a perspective view showing a state in which the mouth of the bag is closed.

FIG. 6 is a perspective view showing a state in which the mouth of the bag accommodating the bread is closed.

[Explanation of symbols]

1 Closing tool 2 Main body 2a Winding part 2b
Recessed portion 3,4 Shoulder portion 3a, 4a Guide edge 3b, 4b
Thin part 3b, 4b Swing piece 5 Storage part 6 Slit
7 Recessed portion 10 Bag 10a Neck portion 10b Twisted portion

Claims (1)

[Scope of utility model registration request] 1. Locking portions 3, 4, and 3 above and below a plate-shaped main body 2.
a and 4a are formed and the accommodating portions 5 and 5a are formed above and below the central portion.
Is formed, and guide edges 6, 6, 6a, 6a whose intervals are gradually reduced are formed at the facing portions of the engaging portions 3, 4, 3a, 4a. The guide edges 6, 6, 6a, 6a are most Slits 7 and 7a whose front ends are opened are formed in the accommodating portions 5 and 5a at the approaching portions, and further, the locking portions 3, 4, 3a and 4a.
The thin-walled parts 8, 8, 8a, 8 facing the accommodating parts 5, 5a
A rocking piece f which forms a and has guide edges 6, 6, 6a, 6a
A closure for bags made of synthetic resin that is formed in four directions.