JP3028178U - Bag zipper mounting structure - Google Patents

Abstract

(57) An object of the present invention is to sufficiently secure an engaging force between a convex member and a concave member constituting a fastener and prevent air from flowing into the inside of the bag. SOLUTION: An extension portion 35 extending from the opening 32 toward an end portion 34 is provided on the outside of the bag 30, and the extension member 35 and the recessed member 40 constituting the fastener are opposed to each other. It is attached to the back surface 36 a of 36. When the convex member 38 and the concave member 40 are engaged with each other, the bag 30 is sandwiched between them and engaged with each other.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which a bag having an opening at one end is provided with a fastener used for opening and closing the opening, and more specifically, for opening and closing the opening of a futon compression bag. The present invention relates to a structure for attaching a fastener to the futon compression bag.

[0002]

[Prior art]

 3 and 4 show a conventional futon compression bag. 3 is a perspective view, and FIG. 4 is a sectional view taken along the line AA of FIG. The futon compression bag is a flexible bag made of a thermoplastic resin such as vinyl and having an opening at one end. Put a futon in this futon compression bag, and use a vacuum cleaner or other device to suck out the air in the bag from the opening, and reduce the volume of the bag, and thus the futon, to store space such as a closet. It is intended to effectively utilize. Furthermore, by sucking out moisture from the air or with the air, it also has an antifungal effect and an insecticidal effect.

As shown in FIGS. 3 and 4, the conventional futon compression bag 10 is made of a vinyl rectangular bag and has an opening 12 at one end thereof. At the end 14 on the side opposite to the opening 12, the futon compression bag 10 has the upper surface 10a and the lower surface 10b constituting the futon compression bag 10 welded to each other, and further, at both ends 16 of the opening 12. The upper surface 10a and the lower surface 10b are partially welded to each other.

As shown in FIG. 4, a convex member 18 and a concave member 20 are attached to the inner surfaces of the upper surface 10 a and the lower surface 10 b of the futon compression bag 10 along the opening 12, respectively. The convex member 18 and the concave member 20 have a structure capable of being detachably engaged with each other, and the opening 12 can be opened and closed by attaching and detaching the convex member 18 and the concave member 20. Has become. That is, the convex member 18 and the concave member 20 cooperate with each other to form a fastener for opening and closing the opening 12.

[0005]

[Problems to be solved by the device]

 The futon compression bag 10 having the above-described structure is used because it has a relatively simple structure and is highly convenient. However, the attachment of the fastener used in the conventional Futon compression bag 10 as described above has the following problems.

First, since the convex member 18 and the concave member 20 that form the fastener are exposed to the outside, dust, dust, and other foreign matter are likely to accumulate particularly in the concave portion of the concave member 20. When such foreign matter accumulates in the concave portion of the concave member 20, the engaging force between the convex member 18 and the concave member 20 decreases at the location where the foreign matter accumulates, and as a result, the convex member 18 and the concave member 20 The engagement between the two is disengaged, and a slight gap is created. Air may flow into the futon compression bag 10 through this gap, and the degree of airtightness inside the bag 10 may decrease, so that the desired effect of volumetric compression may not always be achieved sufficiently.

The second problem is as follows. When the futon stored in the futon compression bag 10 is put into a pusher or the like, the futon may be bent. At this time, the fastener composed of the convex member 18 and the concave member 20 may also be bent at the same time, but in this case, the engagement between the convex member 18 and the concave member 20 is disengaged, and the space between both members is released. A slight gap was generated, and air sometimes flowed into the futon compression bag 10 through the gap. Also in this case, as in the case described above, the desired effect of volumetric compression of futon cannot be sufficiently achieved.

The third problem is as follows. As a measure against the above-mentioned problem of disengagement between the convex member 18 and the concave member 20, silicon is applied to the concave portion of the concave member 20 to increase the degree of adhesion with the convex member 18. Although a structure has been proposed, accurately applying silicon into a recess having a small size increases a working process and a working time, and since silicon itself is expensive, using silicon causes a cost increase. Contribute.

Fourth, the upper surface 10a and the lower surface of the futon compression bag 10 at both ends 16 are caused by variations in the degree of heat welding at both ends 16 of the opening 12 and deterioration of the welding due to changes over time. In some cases, air was flown into the Futon compression bag 10 from the air bag 10b. Also in this case, as in the case described above, the desired effect of volumetric compression of the hood cannot be sufficiently achieved.

The present invention has been made in view of the problems of the fastener in the conventional futon compression bag as described above, and sufficiently secures the engaging force between the convex member and the concave member forming the fastener. However, it is an object of the present invention to provide a fastener mounting structure that can prevent air from flowing into the bag.

[0011]

[Means for Solving the Problems]

 To achieve this object, a fastener mounting structure according to the present invention is a fastener that is attached to a bag having an opening at one end and opens and closes the opening, and has a convex shape that can be detachably engaged with each other. In a structure in which a fastener composed of a member and a concave member is attached to the bag, the bag is provided with an extension portion that extends from the opening to the other end of the bag. The convex member and the concave member are attached to the back surface of the extension portion so as to face each other with the bag interposed therebetween.

The extension portion can be formed by folding back an end portion of the bag provided with the opening portion. Alternatively, the extension may be provided separately from the bag, and the extension may be welded to the opening of the bag. Further, it is preferable that the extension portion is formed so as to have a portion extending outward from both end portions of the opening portion, and the extension portion is welded to each other at that portion.

[0013]

[Embodiment of device]

 1 and 2 show an embodiment of a fastener mounting structure according to the present invention. 1 is a perspective view of the present embodiment, and FIG. 2 is a sectional view taken along line BB of FIG. The Futon compression bag 30 which is the object of the fastener mounting structure according to the present embodiment is a rectangular bag made of vinyl and has an opening 32 at one end thereof. As will be described later, the opening 32 can be freely opened and closed by a fastener mechanism.

The futon compression bag 30 includes an upper surface 30a and a lower surface 30b, and the upper surface 30a and the lower surface 30b are welded to each other at an end portion 34 opposite to the opening portion 32, and only the opening portion 32 is opened. Is able to.

In the opening 32 of the futon compression bag 30, two strips 36 forming an extension are welded so as to face each other. The strip 36 is arranged so as to extend outside the upper surface 30a and the lower surface 30b of the futon compression bag 30 from the opening 32 toward the end 34 of the futon compression bag 30, and one end of the longitudinal end thereof is opened. The futon compression bag 30 is joined by being heat-welded along the portion 32.

The length L of the strip 36 can be set arbitrarily, but is preferably about 5 to 20% of the total length of the futon compression bag 30. The strip 36 has margin portions 37 formed on both sides of the futon compression bag 30 so as to be longer than the entire width W of the futon compression bag 30 by a length T. In the margin portion 37, the strips 36 are heat-welded to each other to prevent the strips 36 from peeling from the futon compression bag 30 or from breaking the futon compression bag 30 from both ends of the opening 32. The length T of the margin portion 37 can be set arbitrarily, but a range of several% to 20% of the total width W of the futon compression bag 30 is preferable.

The back surface 36 a of the strip 36 is provided with a convex member 38 and a concave member 40 which can be detachably engaged with each other and cooperate with each other to form a fastener. That is, on the back surface 36a of the strip 36, the convex member 38 faces the upper surface 30a of the futon compression bag 30, and the concave member 40 faces the lower surface 30b of the futon compression bag 30. It is fixed. That is, the convex member 38 and the concave member 40, which form the fastener, are arranged so that the futon compression bag 30 is sandwiched between them.

The fastener mounting structure according to the present embodiment having the above-described structure operates as follows. First, the engagement between the convex member 38 and the concave member 40 is released, the opening 32 is left open, and the futon is put into the futon compression bag 30 through the opening 32. At this time, the futon should be placed deeper than the convex member 38 and the concave member 40.

Next, the convex member 38 is engaged with the concave member 40 with the upper surface 30a and the lower surface 30b constituting the futon compression bag 30 sandwiched therebetween, and the opening 32 is closed. At this time, the convex member 38 and the concave member 40 are not engaged over the entire length, and one end of the opening 32 is slightly opened.

The suction port of the vacuum cleaner is inserted through the opened portion to suck out the air inside the futon compression bag 30. As the air is sucked, the volume of the futon compression bag 30 decreases, and the upper surface 30a and the lower surface 30b of the futon compression bag 30 come into close contact with the futon inside the futon compression bag 30.

When the air in the bag cannot be sucked out any more than this, the suction member of the cleaner is pulled out from the futon compression bag 30 and the convex member 38 and the concave member at the opening are opened. 40, and the futon compression bag 30 is completely sealed.

As described above, in the fastener mounting structure according to the present embodiment, since the convex member 38 is engaged with the concave member 40 with the futon compression bag 30 sandwiched between the concave member 40 and the concave member 40, It is possible to prevent foreign matter such as dust and dust from entering the inside, and to avoid a decrease in the engaging force between the convex member 38 and the concave member 40 due to the accumulation of foreign matter.

Further, by sandwiching the futon compression bag 30 between the convex member 38 and the concave member 40, the convex member 38 and the concave member 40 come into close contact with each other without a gap, so that the holding force between both members increases and the convex member 38 Even if the fastener composed of the concave member 40 and the concave member 40 is bent, the relationship between the two members is released, and the air flows into the inside of the futon compression bag 30 through the gap formed between the two members. It is possible to prevent.

Further, since the extension portions 36 are welded to each other on the outside of the futon compression bag 30, the welded portions are detached at both ends of the opening like the conventional futon compression bag shown in FIG. It is also possible to prevent air from flowing into the futon compression bag from there. In addition, it is not necessary to use expensive materials such as silicon to obtain the above effects.

In the above-described embodiment, the strip 36 is formed separately from the futon compression bag 30 and is heat-welded along the opening 32 of the futon compression bag 30. 36 can be formed by a method other than this method. For example, the strip 36 can be formed by forming the futon compression bag to have a slightly longer length and folding back the end of the futon compression bag where the opening is provided. In this case, the margin portion 37 may be attached separately.

[0026]

As described above, according to the fastener mounting structure of the present invention, the convex member is engaged with the concave member while the bag is sandwiched between them. Therefore, the foreign matter is stored in the concave portion of the concave member. Therefore, it is possible to prevent the accumulation of foreign matter and prevent the reduction of the engaging force between the convex member and the concave member due to the accumulation of foreign matter.

Further, by sandwiching the bag between them, the convex member and the concave member can be brought into close contact with each other without a gap, and by extension, the holding force between both members can be increased. Therefore, even if the fastener composed of the convex member and the concave member is bent, the engagement between both members is released, and air is prevented from flowing into the bag through the gap created between both members. You can also In addition, these effects can be obtained without using an expensive material such as silicon.

Furthermore, by welding the extension portions to each other on the outer side of the bag, the welded portions are separated at both ends of the opening portion like the conventional balloon compression bag, and air flows from there. The situation can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a futon compression bag to which a fastener mounting structure according to an embodiment of the present invention is applied.

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

FIG. 3 is a perspective view of a conventional futon compression bag.

4 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 10 futon compression bag 10a upper surface 10b lower surface 12 opening 14 end 16 both ends 18 convex member 20 concave member 30 futon compression bag 30a upper surface 30b lower surface 32 opening 34 end 36 strip 37 margin portion 38 convex member 40 concave member

Claims (4)

[Scope of utility model registration request] 1. A fastener which is attached to a bag having an opening at one end and opens and closes the opening, the fastener comprising a convex member and a concave member that can be detachably engaged with each other. In the mounting structure, the bag is provided with an extension portion extending from the opening to the other end of the bag on the outside of the bag, and the convex member and the concave member are opposed to each other. A fastener mounting structure, characterized in that the bag is mounted on the back surface of the extension so as to sandwich the bag therebetween. 2. The fastener mounting structure according to claim 1, wherein the extension portion is formed by folding back an end portion of the bag in which the opening is provided. 3. The fastener mounting structure according to claim 1, wherein the extension portion is welded to the opening portion of the bag. 4. The extension portion has a portion extending outward from both ends of the opening portion, and the extension portion is welded to each other at the portion. Or the fastener mounting structure according to item 3.