JP3708184B2 - Packaging bag with latching part and latching structure thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a flexible packaging bag mainly made of a plastic material that is widely used for packaging liquids and powders containing viscous materials, and the user can subsequently dispense liquids and the like. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag with a latching part and a latching structure for easily and surely mounting the member and the like.
[0002]
[Prior art]
For example, when packaging a liquid with a flexible packaging bag having no fixed form, for example, when the entire amount of the liquid cannot be used up at once, it is necessary to store the remaining liquid as it is in the flexible packaging bag. Various container lids, stoppers, and the like have been proposed that allow liquid users to later adhere or adhere to the outer surface of the package after purchase (Japanese Patent Laid-Open No. 2-127254, Japanese Utility Model Laid-Open No. 2). -108872 publication, Japanese Utility Model Publication No. 6-76104 publication).
[0003]
[Problems to be solved by the invention]
By the way, in the state where the edge provided at the outer peripheral portion of the end of the neck portion is adhered to the outer surface of the bag with an adhesive, like a container lid disclosed in JP-A-2-127254, using a knife or the like, In the case of cutting the bag along the inside of the neck, in order to prevent unintentional outflow of the packaged item when cutting the bag, remove the bag with the hand opposite to the hand holding the knife etc. It is indispensable to perform the cutting while maintaining the standing posture.When the bag is placed in the standing posture by picking the neck with the opposite hand, particularly when the weight of the packaged item is large, It is difficult to support the weight of the bag until the cut is complete. On the other hand, there is a disadvantage that the neck part is likely to peel off from the surface of the bag. On the other hand, when the upper end portion of the bag is picked up to make it stand up, and in addition, the stability of the bag is improved. In order to raise it further, when attaching a finger to the back side of the bag opposite to the adhesive side surface of the neck and supporting it, the cutting edge of a knife or the like reaches the back side as well as the front side of the bag. There was a risk that unnecessary cuts or the like would occur there.
[0004]
The latter is almost the same in the devices relating to the stoppers disclosed in Japanese Utility Model Laid-Open Nos. 2-108872 and 6-76104, and these devices are applied to the outer surface of the bag. A bag member is opened by a stick attached to the lid member or an opening blade by screwing a lid member screwed into the outer peripheral surface of the mouth body or spout portion adhered or bonded. However, when screwing the lid member, it is impossible to hold the bag in a standing posture by grasping the mouth body or the spout part with the hand opposite to the hand holding the lid member. To maintain the standing posture, the upper end portion of the bag is picked, or in addition, the finger is also attached to the back side of the bag opposite to the adhesive side surface such as the mouth body. There has been a problem that there is a very high possibility that the thrust bar or the unsealing blade moved forward by the screwing of the lid member will reach not only the front surface side of the bag but also the back surface side located near or in contact with the bag.
[0005]
The present invention has been made as a result of studying to solve such problems of the prior art, and the object of the present invention is to provide a flexible packaging bag as described in the prior art. In the case of using a container lid or stopper, as well as in the case of mounting a simple stab-type dispensing member, an unexpected cut or the like may occur on the surface opposite to the surface of the dispensing member. In addition, regardless of the weight of the packaged item, it is possible to sufficiently prevent peeling from the outer surface of the packaging bag, such as a lid and a stopper, and at the same time, it is possible to support the weight very easily. It is in providing packaging bag and retaining structure of it.
[0006]
[Means for Solving the Problems]
Hooking portion packaging bag of the present invention, the upper end portion outer surface of the flexible packaging bag made of a plastic material as a main component, will be constituted by a substantially flat plastic film, hanging the planar shape a circular or rectangular shape The stop member is attached to the center portion thereof, and the ring-like stop member is attached to the inner peripheral side portion thereof without protruding from the packaging bag , for example, fused , and between the retaining member and the packaging bag. the by-inserting the rigid support member, on the basis of the contact between the support member and the fused part, which allowed the hanging support of the packaging bag by a rigid support member, the fused region or fusion It is possible to attach a pouring member such as a container lid or a stopper to a region surrounded by the section.
[0007]
Here, the latching member is substantially planar plastic film a circular or rectangular shape or circular, preferably, shall constitute a strong laminated plastic film having a relatively lower back, sometimes separate aluminum layers, glass layers and the like or These vapor-deposited layers or paper layers can also be included.
Moreover, this latching member can also be comprised with the cyclic | annular plastic bag body which enclosed gas.
[0008]
And the latching structure of this invention is provided in the rigid support member inserted between a packaging bag with a latching part as mentioned above, a packaging bag, and a latching member, and this rigid support member, and latches. The member is provided with a notch portion that circumscribes the attachment portion to the packaging bag. According to this, the packaging bag is always in a stable standing posture with the rigid support member due to the restriction of the attachment portion by the notch portion. Under such a support state, a tensile force based on the weight of the article to be packaged acts on the surface of the packaging bag, particularly on the hooking side, and the surface becomes a tension state. Therefore, when attaching the dispensing member to the region as described above, it is possible to adhere or adhere the container lid, stopper, etc. without having to directly hold and hold the packaging bag by hand. Even when the opening or opening of the packaging bag is perforated, the rigid support member is touched with sufficient tension on the surface of the packaging bag, but the packaging bag is not touched at all. be able to.
[0009]
In addition, the notch part of a rigid support member here shall include the concave part of various shapes formed in a frame-shaped rigid support member other than the hollow part of various shapes formed in a plate-shaped rigid support member.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1, one embodiment of a hook portion packaging bag, a longitudinal sectional view showing a filling state of the packaged articles, reference numeral 1 is a flexible packaging bag comprising mainly of plastic materials Indicates. Here, when this packaging bag is constituted by a laminated plastic film, the laminated structure can be, for example, a polyester layer, a stretched nylon film layer, and a polyethylene layer sequentially from the outer layer side.
[0011]
The outer surface of the upper end portion of the packaging bag has a sufficient area necessary for adhering or sticking a predetermined region, for example, a conventionally known lid, stopper, etc., to the retaining member 2 having a circular or square planar shape. Glue firmly over the area beyond. Such a latching member 2 can be made of a plastic molded body, a plastic film, or other appropriate material, but when the latching member 2 is made of a low-cost plastic film, of course. It is preferable to use a laminated plastic film to ensure its adhesion to the surface of the packaging bag, most of which are heat-fusible and its own waist strength. In order, a polyethylene layer, a stretched nylon film layer, and a polyester layer can be formed.
Further, when the latching member 2 is constituted by a relatively rigid plastic molded body, the latching member 2 is latched at the time of storage, transportation, etc. of the product after the packaging bag and the packaged item are packaged. in order makes it sufficiently small space occupied by the member 2, also, when configuring a plastic film, in order makes it unnecessary a special typed only process such as a dish-like shape as shown in FIG. 1 (b) It is preferable to have a substantially flat shape that also includes
[0012]
In addition, here, the laminated structure of the packaging bag 1 is, from the inner layer side, polyethylene layer + stretched nylon film layer + polyethylene layer, polyethylene layer + polyester layer + polyethylene layer, polyethylene layer + aluminum layer + polyester layer + polyethylene layer, and the like. The laminated structure of the hooking member 2 may be a polyethylene layer + a stretched nylon film layer, a polyethylene layer + a polyester layer, a polyethylene layer + aluminum layer + a polyester layer, or the like from the packaging bag side.
[0013]
FIG. 2 is a longitudinal sectional view of an essential part illustrating another form of the latching portion. In FIG. 2A, the latching member 2 has an annular shape, and the latching member 2 is The inner peripheral side portion is firmly bonded to the outer surface of the upper end portion of the packaging bag 1. The latching member 2 here can also be configured in exactly the same way as described for FIG.
Incidentally, the inner diameter D of the latch member 2 Contact only that here is a conventional known container lids, plugs and the like, it is preferable that the size sufficient to directly mounted to the outer surface of the packaging bag.
[0014]
Further, in the example shown in FIG. 2 (b), the latch member 2 is constituted by an annular plastic bag-like body that is filled and sealed with a gas that can be used as air, an inert gas, or the like, and is expanded in a donut shape. The plastic bag-like body is bonded to the packaging bag 1, preferably fused. Here, the plastic bag-like body can be constituted by, for example, a monolayer film such as polyester or nylon, a laminated film of polyester and polyethylene, a laminated film of nylon and polyethylene, or other laminated films. As shown in the figure, the bag can be formed by heat-sealing each of the inner and outer peripheral portions of the two films in a pressurized gas atmosphere. Further, the bag-like body can be joined to the packaging bag 1 by hot melt, heat-sealing fusion, fusion using a laser beam, or the like.
Also in this case, the inner diameter D of the latching member 2 is set to a dimension that can sufficiently permit the direct attachment of a known container lid , stopper, or the like to the outer surface of the packaging bag.
[0015]
In the packaging bag with the latching portion configured as described above, for example, the case shown in FIG. 2 (a) is shown in FIG. 3 prior to mounting the pouring member at the center position of the latching member 2. As shown, for example, a plate-like rigid support member 3 in an upright position is inserted into a gap between the packaging bag 1 and a hooking member 2 adhered to the outer surface of the upper end portion thereof. Then, provided at the rigid support member 3, the notches 4 are front shape forms a substantially U-shaped in the figure, the hooking member 2, to the packaging bag 1, adhesive portions 2b surrounded by a chain line in FIG. Preferably, the notch 4 is circumscribed on the periphery extending from the lower edge to both side edges of the adhesive portion 2b.
Here, the rigid support member 3 of this example has a base plate 5 that can support the packaging bag 1 sufficiently stably even if the total weight of the packaging bag 1 that packages the packaged material acts on the notch 4. Have
[0016]
FIG. 3 (b) is a longitudinal sectional view showing a state in which the packaging bag 1 is suspended and supported by the rigid support member 3 by completely accommodating the adhesive portion 2b in the notch 4 of the rigid support member 3. FIG. The suspending support of the packaging bag 1 shown here is mainly performed under the contact between the lower edge of the notch 4 and the lower edge of the adhesive part 2b, so that the adhesive strength of the adhesive part 2b is as described above. It is necessary to be able to withstand the shearing force at the time of suspension support. On the other hand, in the case of adopting a support configuration in which the lower end portion of the bag is placed on the base plate 5, a part of the weight in the bag can be supported by the base plate 5. It is possible to lower the minute.
[0017]
By the way, in any of these cases, when the adhesive portion 2b of the latch member 2 is engaged with the notch 4 of the rigid support member 3, the packaging bag 1, especially the latch member 2 is adhered. The surface side is greatly strained based on the weight of the article to be packaged, and the region surrounded by the adhesive portion 2b of the packaging bag 1 is remarkably made flexible by the rigid support member 3. You will be bound.
[0018]
Therefore, when attaching a known container lid, stopper, or the like to the outer surface of the packaging bag 1 at the center of the annular hooking member 2 as shown by the phantom line in FIG. It is absolutely unnecessary to hold or hold the packaging bag 1 to restrain the escape deformation of the packaging bag 1, and this can be done by using a blade such as a knife or by screwing the lid member after such mounting. The same applies when forming required openings, holes, and the like in the packaging bag 1. In addition, when the packaging bag 1 is in the suspended state as described above, the surface side where the retaining member 2 of the packaging bag 1 is adhered by the article 6 to be packed in a large amount in the packaging bag. And the back side opposite to that, it is located at a sufficient interval, so that when the packaging bag 1 is opened by a blade such as a knife or by a stick or an opening blade attached to the lid member, the blade or the like However, there is no fear of causing unexpected cuts or the like on the back side portion of the packaging bag 1, which means that a piercing-type pouring member 7 as shown in a sectional view in FIG. The same applies to the use.
[0019]
Thus, here, when forming an opening, a hole or the like in the packaging bag 1, it is possible to sufficiently prevent an unintended cut or the like from occurring on the back side portion of the packaging bag 1. Based on the strong adhesion to the packaging bag 1 and the action of the rigid support member 3, the possibility of peeling off the lid, plug, etc. attached to the packaging bag 1 is removed regardless of the weight of the package 6. Thus, the packaging bag 1 can be maintained very easily.
[0020]
The rigid support member 3 described above can be used only for mounting a container lid or the like and forming an opening or the like. However, the packaging bag at the time of pouring the article 6 to be packaged from the opening of the packaging bag. It can also be used as one shape maintaining means, and in addition to or instead of it, it can also be used as a stand for a packaging bag containing a remaining packaged item. Here, when the rigid support member 3 is tilted and used together with the packaging bag 1 for pouring the article 6 to be packaged, it is possible to effectively prevent the adhesive portion 2b from coming out of the notch 4 of the rigid support member 3. Therefore, as shown in FIG. 5, at least one of the U-shaped cutouts 4, preferably both side walls, are provided with protrusions 4 a protruding in the direction of constricting the cutouts, or the front of the cutouts 4. It is preferable that the shape is V -shaped, and the side wall of the notch is sufficiently friction-engaged with the bonding portion 2b.
[0021]
FIG. 6 is a diagram showing another example of the rigid support member, which is configured so that the entire rigid support member 3 has a box shape capable of accommodating the entire packaging bag 1 in which an article to be packaged is packaged. The notch 4 having any one of the above-described configurations is provided at the upper end portion of the front wall 8, and the lid member 10 that can be opened and closed with respect to the front wall 8 is hinged to the rear wall 9 of the rigid support member 3. Is. Here, as shown in the figure, it is preferable that the lid member 10 has a protrusion 10a that slightly enters the notch in the closed state and contacts the upper edge of the adhesive portion 2b.
[0022]
Such a rigid support member 3 can be used continuously from the time when a lid, a stopper, etc. are attached to the packaging bag 1 until the package contents 6 are completely consumed. When the packaged item 6 is poured out while the packaging bag 1 is accommodated in the container, by applying a finger to the lid member 10 to prevent the opening displacement, the adhesive part 2b is prevented from coming out from the notch part 4 sufficiently. can do.
[0023]
As shown in the figure, the lower end of the packaging bag 1 is brought into contact with the bottom wall of the rigid support member 3 as the base plate 5 in a considerably large area. It is possible to select appropriately within a range where the attachment of the stopper and the like and the formation of the opening or the like in the packaging bag 1 can be performed sufficiently easily.
[0024]
As mentioned above, although embodiment of this invention was described based on the place shown in drawing, the upright part inserted between a rigid support member, especially a packaging bag and a latching member does not necessarily need to be plate shape. Alternatively, the frame member may have a required inner / outer contour shape. In this case, the notch as described above is formed by the recess of the frame member.
[0025]
【The invention's effect】
Thus, according to the present invention, the pouring member such as a lid and a stopper is attached to the outer surface of the packaging bag, and the opening to the packaging bag and other spouts are formed. Since it can be performed without gripping or holding the dispensing member, it is always easy and simple to perform these operations, regardless of the weight of the packaged item, without the possibility of peeling the installed dispensing member. While being able to carry out, generation | occurrence | production of the cut etc. to the back surface side part of a packaging bag in the case of formation of a spout can be prevented effectively.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of a packaging bag with a hooking portion.
FIG. 2 is a longitudinal sectional view of an essential part showing another embodiment of a packaging bag with a latching part.
FIG. 3 is a view showing an embodiment of a packaging bag latching structure.
FIG. 4 is a cross-sectional view of an essential part showing an embodiment showing an application example of a stab-type dispensing member.
FIG. 5 is a front view showing another example of a notch.
FIG. 6 is a view showing another example of a rigid support member.
[Explanation of symbols]
1 Packaging bag 2 Hanging member
2a Ear
2b Adhesive part 3 Rigid support member 4 Notch
4a Projection 5 Base plate 6 Packaged object 7 Piercing type pouring member 8 Front wall 9 Rear wall
10 Lid member
10a protrusion

Claims (3)

The upper end portion outer surface of the packaging bag consisting mainly of plastic material, will constitute a substantially flat plastic film, a hooking member which plane shape a circular or rectangular shape in its central portion, also, to name a cyclic in the inner peripheral portion of the hooking member, by sticking without protruding from the packaging bag, by-inserting the rigid support member to between the locking member and the packaging bag, the rigid support member and bond portion A packaging bag with a latching portion that enables suspension of the packaging bag by a rigid support member based on the contact . A hooking member made of a plastic bag-like body in which a planar shape forms an annular shape on the outer surface of the upper end portion of a packaging bag mainly composed of a plastic material is formed on the inner peripheral side portion of the packaging bag. The packaging bag is hung by the rigid support member based on the contact between the rigid support member and the sticking portion by sticking without sticking out and inserting the rigid support member between the latching member and the packaging bag. A packaging bag with a hook that enables lowering support . And-out with the hook portion packaging bag according to claim 1 or 2, and the rigid support member which is inserted between the locking member and the packaging bag, provided in the rigid support member, the latch member, the packaging A latching structure for a packaging bag with a latching portion, comprising a notch portion circumscribing a sticking portion to the bag.

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