JP2002179092A - Bag body with fastening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag body with a fastening device with which force for opening the device is concentrated on a specific position and is not transmitted to or does not work on a joined part on both ends of an opening. SOLUTION: The opening 12 of a bag body 10 is formed with a fastening device 14. On the outside of the device 14, tabs 16 are formed protruding at the center of the opening and an equal distance (a) away from both ends of the opening. By holding the tabs 16 by both hands and by pulling them in opposite directions, the device 14 can be opened. Practically no opening force is transmitted to both ends of the opening and the force is transmitted only to the center of the device. By cutting off the film material at both ends of the opening, a joined part at both ends of the opening can be protected from being torn in inserting a finger in the bag body 10 for taking out contents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag with a jaw having a male and female jaw on the inner surface of the opening, with the open edges of the front and back films joined together except for the opening. More specifically, the present invention relates to a bag with a jaw in which the opening force acting on the male and female jaws is concentrated on a specific portion and the configuration of the opening is improved so that the contents can be easily taken out.

[0002]

2. Description of the Related Art A bag with an articulation tool is widely used in various fields because its opening can be easily opened and closed and its contents can be easily protected and stored. This type of bag with a jaw tool has an open periphery of the film on the front and back sides joined together with an opening, and has a male / female jaw tool on the inner surface of this opening. When removing the contents, the user holds the outer opening piece from the jaw with both hands, and pulls the opening piece so that the films on the front and back are separated to open the jaw. Thereafter, the contents are taken out of the bag body, for example, by inserting a finger from the jig.

[0003]

However, the force for opening the jaw is transmitted to the joint at both ends of the opening through the opening piece. This force causes the joint to tear.
When the occlusal tool is repeatedly opened, the tearing of the joint progresses with each opening. In particular, when the width of the bag with an articulation tool is narrow, the opening force is easily transmitted to the joint, and when the anti-opening force of the articulation tool is strong, the opening force is transmitted as a sudden force to the joint. .

[0004] As described in Japanese Utility Model Publication No. Sho 56-45324, the applicant has proposed a bag with an occlusal tool in which the force for opening the occlusal tool is not transmitted to the joints at both ends of the opening. I have. This bag with a jaw has a cut portion near the joint of the opening pieces, so that the force for opening the jaw is cut off by the cut portion. As a result, tearing of the joints at both ends of the opening is prevented, so that bag breakage does not occur.

[0005] The present invention is intended to improve the bag with a jaw as described in the above-mentioned publication and has the following problems. (1) Even if a cut portion is provided in the vicinity of the joint of the opening pieces, if the width between the cut portions is large, the force for opening the jig increases according to the width, and the force for opening the jig is not Scatter across the width. Therefore, a large force must be applied to open the jaw, and even if there is a resection, the opening force propagates to the joint due to the rebound at the moment of opening the jaw, causing tearing of the joint That's not all. (2) Even if the cut portion is provided in the vicinity of the joint of the opening pieces, the user does not always have to have a gap between the cut portions, and it is also conceivable that the user may pinch an appropriate portion to open the occlusal tool. As the part held by hand approaches the joint, the force transmitted to one joint increases, and there is a risk that the joint may be torn. (3) Further, in the bag with the articulated tool described in the above publication, there is an opening piece and a joint on the outside of the resection part, and when the bag with the articulated tool is actually used, it is difficult to insert a finger. The outer opening piece becomes an obstacle. If a user puts his / her finger through the opening in such a state and tries to take out the contents, a tearing force acts on the joint at both ends of the opening, and the bag is torn from the joint.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bag with an articulation tool which can concentrate a force for releasing the articulation tool on a specific portion and in which the force for opening the joint at both ends of the opening is difficult to propagate. It is. Another object of the present invention is to provide a zipper-equipped bag body in which it is convenient to take out the contents and the force is hardly applied to both ends of the opening.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a bag with a jaw tool having open and closed edges of a film on both sides joined together and having male and female jaws on the inner surface of the opening. The above-mentioned problem is solved by a bag body with a jaw in which a pair of front and back tongue pieces project from the center of the opening.

When taking out the contents, the user holds the tongue with both hands and pulls the tongue in opposite directions so that the films on the front and back are separated from each other to open the jaw. The opening force acts from the tongue to the jig at the center of the opening, and acts on the jig over the width of the tongue. Since the opening force acts on the center of the opening at the width of the tongue, the initial opening of the jaw is performed with relatively light force. Once the jaws have been released at all, the jaws can be opened over their entire length with only a lighter force. By protruding the tongue piece in the center of the opening away from both ends of the opening, the force to open is a specific part,
That is, while being concentrated at the center of the occlusal tool, the opening force is less likely to propagate through the tongue to the joints at both ends of the opening. These two actions protect the joint at the ends of the opening from tearing.

Furthermore, by projecting the tongue pieces away from both ends of the opening, there is no portion corresponding to the conventional opening piece at both ends of the opening, and the opening piece is cut off.
When taking out the contents, since there is no portion corresponding to the conventional opening piece, it is easy to put a finger through the opening. In addition, the joint at both ends of the opening is protected from tearing, in combination with cutting away a portion where tearing is likely to occur.

In the present invention, since the purpose is to concentrate the force on the jig and avoid the propagation of the force to the joint, the film slightly remains on the outside of the jig on both sides of the tongue piece at the center of the opening. It may be. In addition, with such a configuration, in the excision step of forming the tongue piece, the jaw tool is also protected from an impact on the jaw tool.

In the present invention, it is preferable that the length of the pair of tongue pieces be different on the front and back. By providing the step on the tongue piece on the front and back, the user can pinch the tongue piece using the step. In particular, in the present invention, the purpose is to concentrate the opening force on the jig, and by providing a step on the tongue, the tongue on the front and back is inevitably pinched based on the shorter tongue. The user attempts to apply force to open the jaw closer to the jaw. This makes it easier to concentrate the force for releasing the jig at a specific portion at the center of the opening, and also to avoid the transmission of the force to the joints at both ends of the opening.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a bag with a jaw according to the present invention will be described with reference to the drawings. 1 to 3
1 shows a bag with a jaw of the first embodiment, FIG. 1 is a front view of the bag with a jaw, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and FIG. It is an enlarged front view shown. The bag 10 with the occlusal tool is formed of a single-layer synthetic resin film or various composite films regardless of transparency or opacity. Opening edges of the pair of front and back films are bonded by heat while leaving the opening 12, and the bag body 10 is cut at a bonding intermediate position which is a boundary between the adjacent bag bodies with the occlusal tool shown by a chain line in FIG. Alternatively, both sides of the peripheries of the folded front and back films may be adhered by heat and cut from the adjacent jaw-equipped bags. As shown in detail in FIG. 2, a band-shaped synthetic resin jaw 1 is provided on the inner surface of the opening 12.
4 are formed, and the bag body is opened and closed when the male and female jaws 14 are detached or engaged.

A pair of front and back tongue pieces 16 are provided outside the jaw 14.
Are formed. The tongue piece 16 may have different widths on the front and back. The tongues 16 are spaced at equal distances a from both ends of the opening, so that the tongues 16 having a width b are provided so as to protrude from the jaw 14 at the center of the opening. The width b of the tongue piece 16 is appropriately determined depending on the use of the bag 10 with a jaw tool, the strength of the film, and the like. The tongue pieces 16 are formed in one process per one bag 10 with a jaw by cutting with a punch having a width of 2a in a state where the adjacent bags 10 are not cut. The portion to be cut is rectangular, and the tongue piece 16 is also rectangular. The base end portion 16a of the tongue piece 16 is rounded to avoid concentration of stress on the base end portion 16a. Of course, the portion to be cut off and the tongue piece 16 may have other shapes, but it is important that the joints at both ends of the opening are removed. In addition, in order to protect the jaws 14 at the time of manufacture, a film material may slightly remain in portions other than the tongue pieces 16. In this embodiment, the height of the tongue piece 16 is T1, and the height of the remaining film material is T2, and it is important to provide a step of T1-T2.

The user using the bag 10 with the jaw tool releases the jaw tool 14 by picking the tongue piece 16 with both hands and pulling the tongue pieces 16 in opposite directions. This bag 10 with a jaw has no place to pick except for the tongue piece 16, and the user can use the bag 1 with the jaw.
It is necessary to pick the tongue piece 16 protruding from the center of the zero. FIG. 3 shows the propagation of the force for opening the jaw 14, and the force for opening is transmitted exclusively from the tongue piece 16 to the jaw 14. The force for opening toward both ends of the opening is blocked at the cut off portion. In this manner, the portion to be picked by hand is specified at the center of the bag 10 with the jaw, and most of the opening force is transmitted to the center of the jaw 14.

As the width b of the tongue piece 16 becomes smaller, the force for opening does not propagate to both ends of the opening, but concentrates on the center of the jaw 14. Further, as the height of the tongue piece 16 decreases and the difference T1-T2 between the height of the tongue piece 16 and the height of the remaining film material increases, the opening force does not propagate to both ends of the opening, and the jaw 1
Focus on the center of 4. In consideration of these behaviors, it is preferable that a narrow tongue piece 16 is formed at the center of the opening, and the remaining film material is cut off at both ends of the opening until it is adjacent to the jaw 14. By configuring the bag 10 with the jaw as described above, the force to be released hardly propagates to both ends of the opening, but intensively propagates to the center of the jaw 14. The concentration of the force causes the jaws 14 to open with a relatively light force, so that the force to open does not react to propagate to the joints at both ends of the opening. As a result, tearing of the joint at both ends of the opening is avoided, and the bag is less likely to break when the jaw is opened.

FIG. 4 shows the state after the jaw tool 14 is opened. The user puts a finger through the opening 12 to take out the contents. In the bag 10 with the jaw of the present embodiment, the portion indicated by the dashed line is cut off, so that the film material does not hinder when the finger is inserted into the bag 10 or when the contents are taken out. In the case of a bag body where the part shown by the dashed line is not cut off, when a finger is inserted into the bag body, a tearing force may be applied to the joints at both ends of the opening and tearing may progress from a slight cut. By cutting the film material at both ends of the opening as in the embodiment, a tearing force does not act even when the contents are taken out.

5 and 6 show a second embodiment of the bag with a jaw according to the present invention. FIG. 5 is a front view of the bag with a jaw, and FIG. 6 is a sectional view taken along line 6-6 of FIG. It is. As in the case of the bag with a jaw 10 of the first embodiment, the bag 20 with a jaw is joined with the peripheral edges of the front and back films except for the opening 22, and has a male and female jaw 24 on the inner surface of the opening 22.

The difference from the first embodiment is that the height T1 of one tongue 26 of the front and back films is different from the height T3 of the other tongue 27 of the front and back films. As described above, as the height of the tongue piece decreases and the difference between the height of the tongue piece and the height of the remaining film material increases, the opening force does not propagate to both ends of the opening, and the opening force does not correspond to the occlusal tool. Focus on the center of the However, if the length is extremely short, it becomes difficult to grip the tongue piece in a state in which the occlusal tool is closed. In the present embodiment, one tongue piece 26 is made as high as the first embodiment, while the other tongue piece 27 is shortened in response to the above two problems. The user has the short tongue 2
Since the pair of tongue pieces 26 and 27 will be pulled in the right and left opposite directions with reference to 7, the shortening of only one tongue piece 27 makes it easier to concentrate the opening force on a specific part of the jaw tool. The opening force is less likely to propagate to both ends of the opening.

[0019]

As described in detail above, the bag with a jaw of the present invention has a pair of front and back tongues projecting from the center of the opening apart from both ends of the opening. Is concentrated at the center of the jig and is less likely to propagate to the joints at both ends of the opening. This protects the joints at both ends of the opening from tearing. Further, since the tongue piece is separated from both ends of the opening, it is easy to put a finger through the opening when taking out the contents. If the film material remains on both sides of the tongue, the remaining film material falls down and falls inward, making it difficult to insert a finger, and when the finger is inserted, tearing occurs at the joints at both ends of the opening. Although it is easy to occur, cutting off the film material on both sides of the tongue piece can protect the joint at both ends of the opening from tearing. On the manufacturing side, the tongue piece is formed by a simple process of cutting off both ends of the opening. That is, by cutting off both ends of the opening in a state in which adjacent bags are continuous, a tongue piece is formed in one bag and one step, for example,
This is advantageous in terms of cost as compared with a conventional device having a pair of cutouts. Furthermore, depending on how far the tongue pieces are separated from both ends of the opening, there is an option that the width of the tongue pieces can be widened or narrowed according to the width of the bag body. The tongue can be formed with a width most suitable for avoiding the propagation of a tearing force to the tongue.

According to the second aspect of the present invention, since the length of the pair of tongues is different between the front and back sides, when the user picks the tongues in order to open the jaw, the user is inevitably based on the shorter tongue. As a result, the tongue pieces on the front and back sides are pinched, and an attempt is made to apply force to open the jaw closer to the jaw. As a result, the force for opening the jaw is concentrated at the center of the opening, and the propagation of the force to the joints at both ends of the opening can be easily avoided.

[Brief description of the drawings]

FIG. 1 is a front view of a bag with a jaw of a first embodiment of a bag with a jaw according to the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an enlarged front view showing a force for releasing the articulation tool.

FIG. 4 is a perspective view of a bag with a jaw when taking out the contents.

FIG. 5 is a front view of a bag with a jaw of a second embodiment of the bag with a jaw according to the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

[Explanation of symbols]

 10,20 Bag body with articulation tool 12,22 Opening 14,24 Articulation tool 16,26,27 Tongue piece

Claims (2)

[Claims] 1. A jaw-attached bag having open and closed sides of a film on both sides joined together with a male / female jaw on an inner surface of the opening, leaving an opening from the center of the opening. A bag body with an occlusal tool, wherein a pair of tongue pieces are protruded from front and back. 2. The bag with a jaw according to claim 1, wherein the length of the pair of tongue pieces is different between the front and back sides.