JPH0664558U - Cushion bag with reinforcing plate - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a cushion bag that is not bulky when not in use, has a sufficient cushioning effect and a protective power for stored items when in use, and is easy to handle. [Structure] The cushion bag according to the present invention includes a bag body 1 having a double-wall structure and an inside of the double wall.
An expander 31 obtained by compressing and exhausting an open-cell material and then hermetically sealing it, and a reinforcing plate 33 arranged outside thereof.
It is equipped with. When the airtight sealing of the expander 31 is broken and the open-cell material is exposed to the atmosphere, the expander 31 expands and functions as a cushion. An object can be put inside the bag body 1, and this object is protected by a cushion.
Since the reinforcing plate 33 is provided, the bag is strong against bending and twisting of the entire bag.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bag having a cushion, that is, a cushion bag. In particular, the inflatable material that serves as a cushion is in a compressed and compact state before use, and can be inflated by a simple operation during use, and a reinforcing plate that counters external forces such as twisting force applied to the entire bag can be used. The present invention relates to a cushion bag.

[0002]

[Prior art]

 In the conventional cushion bag, as the cushion, a bubble sheet (having two air bubbles in two plastic films), a sponge or the like is used as it is. Therefore, it is bulky and difficult to store and carry even when it is not in use (before use). Also, in some cases, it took time and effort to put a cushion material such as an air mat or Styrofoam into the bag.

The expandable body obtained by compressing and exhausting the open-cell material and then hermetically sealing is placed in a bag, and the airtight sealing of the expander is broken to expose the open-cell material to the atmosphere to Regarding the cushion bag which has the characteristic of expanding and playing the role of cushion, the applicant of the present application filed a utility model registration application on January 7, 1993 under the name "Cushion Bag" of the device. However, if a flat plate-shaped precision product (compact disc, optical disc, etc.) or precision parts such as computer boards and elements are put in this cushion bag and the entire cushion bag is twisted, the stored items will be protected. May not be perfect.

[0004]

[Problems to be solved by the device]

 It is an object of the present invention to provide a cushion bag which is not bulky when not in use, has a sufficient cushioning effect when in use, and is easy to handle and has improved protection of stored items against external force (torsional force, etc.).

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the cushion bag of the present invention includes a bag body having a flexible double-wall structure and the inside of the double wall, and is hermetically sealed after the open-cell material is compressed and exhausted. The expander thus obtained and a reinforcing plate, which is outside the expander and is also disposed in the two kinds of walls, are provided, and the airtight sealing of the expander is broken to break the open-cell material into the atmosphere. The feature is that the inflatable body expands by hitting it and plays a role of a cushion.

[0006]

[Action]

 When the airtight seal (for example, a film sheet) of the expander is punctured to break it, the open-cell material of the expander is exposed to the atmosphere. Then, the open-cell material, which had been compressed by atmospheric pressure until then, introduces the atmosphere into the open-cells and returns to its original state by its elasticity, that is, the state where the open-cells are filled with air and inflated as a whole. I try to get back. In this way the inflatable body acts as a cushion. Items can be placed inside the bag, and the items are protected by cushions. The reinforcing plate placed on the outside of the inflatable body is put inside due to the combined action of the bending / torsional rigidity of itself and the elastic supporting force from the inflatable body. Protect the goods that have been removed.

[0007]

【Example】

 Hereinafter, description will be given with reference to the drawings. FIG. 1 is a view showing a cushion bag according to an embodiment of the present invention. (A) is a side sectional view and (B) is a partially cutaway front view. The bag body 1 has a double structure of an outer wall 3 and an inner wall 5 inside thereof. Both walls are made of a material with a certain degree of flexibility and toughness, such as a polyethylene base film or an ester base film. The double structure is heat-sealed in each part. A mouth portion 6 is provided on the upper part of the bag body 1 so that an object can be put into the bag body from here.

The upper heat seal portion 7 is provided immediately below the mouth portion 6. The purpose of this heat-sealing is to partition the expander housing portion 17. The lower heat-sealing portion 9 is sealed on the lower side of the bag body 1 by combining two outer walls and two inner walls, a total of four. The lower heat seal portion 9 defines the inner cavity 2 of the bag body and the lower end of the inflatable body storage portion 17. Side heat seal portion 11 seals the side of the bag. Besides the illustrated type, only the inner wall 5 may be heat-sealed at the upper portion of the lower heat seal portion 9 (further above the underline of the expander 31) to form the inner wall 5 in a pouch shape. In this way, the expander 31 also expands to the bottom of the pouch after expansion, and the bottom of the article contained in the pouch can be protected.

A closed expander housing 17 is formed between the outer wall 3 and the inner wall 5. A plate-shaped expander 31 and a reinforcing plate 33 are housed in this portion. The inflatable body 31 is an elastic open-cell material such as foamed polyurethane surrounded by a vinyl bag or the like. However, the air inside the plastic bag is exhausted with the open-cell material compressed. In this state, the expander 31 is hermetically sealed by means such as heat sealing. Since the outer surface of the expander 31 is under atmospheric pressure, but the inside is depressurized, the open-cell material in the expander 31 is kept compressed.

The reinforcing plate 33 is arranged so as to be sandwiched between the expander 31 and the outer wall 3 in the expander housing 17. The vertical and horizontal dimensions of the reinforcing plate 33 are slightly smaller than those of the inflatable body 31. After the inflatable body 31 is inflated, the peripheral edge of the inflatable body is rounded, but the end of the reinforcing plate 33 is only about the rounded inflatable body peripheral portion.

The reinforcing plate 33 may be a cut cardboard, a plastic plate, or the like. Corrugated paper is preferable in terms of price and weight. The thickness and paper quality of the corrugated cardboard can be selected according to the size of the cushion bag and the type of stored items. For example, double-sided corrugated board (S-1 to 4), double-sided corrugated board (D-1 to 4), corrugated type (A-tier, B-tier, C-tier, E-tier), liner type K (craft), C ( Jute) etc. can be freely selected.

A method of using the cushion bag of the present invention will be described. After putting an object in the inner cavity 2 of the bag body 1, the folded piece 21 to which the adhesive is applied is folded back on the upper edge 23 of the bag body to cover the bag. Then, a hole such as a pencil or a ball-point pen is used to hermetically seal the expandable body 31 from above the outer wall 3 where the reinforcing plate 33 is not arranged. Then, as described in the section of the above-mentioned action, the inflatable body 31 inflates and functions as a cushion. The time required for expansion is about 1 minute, and the expansion rate can be 3 to 10 times (an example). After the inflation of the inflatable body 31, the inner wall 5 is pushed by the inflatable body and surrounds the circumference of the article in the lumen 2. In this way, the article is protected from impact. The reinforcing plate 31 is also pushed by the expansion body and closely adheres to the outer wall 3. In addition, after inflating the inflatable body, an object may be put in the bag.

Examples of the material of the open-cell material include natural sponge, sponge rubber, expanded polyurethane, polyester, polyethylene, and cellulose foam.

[0014]

[Effect of device]

 As is clear from the above description, the cushion bag of the present invention exhibits the following effects. Since the inflatable body, which is a cushion member, is compressed before use, it is not bulky and is easy to store and carry. It is easy to use because the inflatable body can be inflated with a very simple operation. It is also possible to prevent the cushion padding from being scattered around when taking out the item from the bag. Since it has a reinforcing plate, the protection of stored items against external forces such as twisting and bending increases.

[Brief description of drawings]

FIG. 1 is a view showing a cushion bag according to an embodiment of the present invention. (A) is a sectional view and (B) is a partially cutaway front view.

[Explanation of symbols]

1 Bag 11 Side heat-seal part 2 Inner cavity 17 Expander storage part 3 Outer wall 21 Folding piece 5 Inner wall 23 Bag upper edge 6 Mouth part 31 Expander 7 Upper heat seal part 33 Reinforcing plate 9 Lower heat seal part

Claims (2)

[Scope of utility model registration request] 1. A bag body having a flexible double-wall structure, an expander housed inside the double wall, obtained by compressing and exhausting an open-cell material and then hermetically sealing it. A reinforcing plate, also outside the expander, which is also located in the second wall; the expander expands by breaking the hermetic seal of the expander and exposing the open-cell material to the atmosphere. A cushion bag with a reinforcing plate, which plays the role of a cushion. 2. The cushion bag with a reinforcing plate according to claim 1, wherein the reinforcing plate is made of corrugated paper.