JP3822473B2 - Air filled cushioning material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air-filled cushioning material.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a method of packing an object to be protected such as an electric product in a box made of cardboard after protecting corners and side surfaces with a cushioning material made of polystyrene foam or the like has been widely performed. According to this method, even if an impact is applied from the outside of the box, it is absorbed by the cushioning material, so that the object to be protected is protected.
However, this cushioning material has been problematic in that it is bulky when discarded or stored after use.
[0003]
[Problems to be solved by the invention]
In view of these problems, it is an object of the present invention to provide a cushioning material that is not bulky.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the first invention of the present application, in the cushioning material 2 in which the air-sealed portion 1 is formed by superimposing sheets made of a soft resin having no air permeability, the air-sealed portion 1 is formed in the vertical direction. A plurality of strip-shaped vesicles 11 formed in series are formed so as to be continuous in the left-right direction, and the vesicles 11 are formed on a part of the sheets by means such as thermocompression bonding. Since the plurality of seals 13 are formed, the air enclosure portion 1 is partitioned, and the middle portion 11a in the vertical direction of the vesicles 11 protrudes from the seal 13 in the left-right direction. Thus, when the inside of the vesicle 11 is filled with air, the intermediate portion 11a is thin and the both end portions 11b are swelled thickly . Up and down Dimensions, and are assumed to be equal even in the vertical direction of any size vesicles 11 of end portions 11b, the difference in the thickness of the intermediate portion 11a and end portions 11b in the buffer material 2 At the boundary, a step 12 protruding in the thickness direction is formed so as to be linearly arranged in the left-right direction . When air is enclosed in the vesicle 11, the intermediate portion 11a is protected from the object 3 The above-mentioned contact is made at the top in the thickness direction of the intermediate portion 11a, and the step 12 is protected by the object to be protected 3 being caught at the top in the thickness direction. a portion held against vertical object 3 is made, that both end portions 11b adjacent the above, is to contact when the air is filled in the vesicles 11 To provide an air-filling cushioning material to symptoms.
The expression “up / down / left / right” in the present invention indicates a relative positional relationship, and does not limit the state of use or the like. The expression “thickness” is in the front and back direction of the cushioning material. The same applies to the following description.
[0005]
The second invention of the present application is characterized in that, in the first invention, the joining means 23 is formed on at least one of the left and right end portions 21 of the cushioning material 2 or at least a part of the side surface 22 on either the front or back side. An air-filled cushioning material according to claim 1 is provided.
[0006]
In the third invention of the present application, in the cushioning material 2 in which the air-sealed portion 1 is formed by superimposing sheets of soft resin having no air permeability, the air-sealed portion 1 is a strip shape formed in a series in the vertical direction. The vesicles 11 are formed so as to be continuous in the left-right direction, and the vesicles 11 have a plurality of seals 13 formed on a part of the sheets by means such as thermocompression bonding . Thus, the air enclosure portion 1 is partitioned, and the vesicle 11 at the central portion in the left-right direction of the cushioning material 2 protrudes from the seal 13 in the left-right direction to the intermediate portion 11a in the up-down direction. and Te is the diaphragm seal 13a is formed, thereby, when it is inside filled with air vesicles 11, thin intermediate portion 11a, bulge thicker end portions 11b, upper and lower intermediate section 11a at the time the Direction Dimensions, and, the vertical dimension of the end portions 11b are assumed to be equal even in follicles 11 either, due to the difference of the thickness in the central portion in the lateral direction of the cushioning material 2, an intermediate portion A step 12 projecting in the thickness direction is formed so as to be linearly arranged in the left-right direction at the boundary between 11a and both end portions 11b, and the step 12 is an object to be protected at the top in the thickness direction. 3 is a portion where the protection target 3 is held in the vertical direction, and the vesicles 11 in the vicinity of both ends in the left-right direction of the cushioning material 2 are in a state where the intermediate portion 11a ′ is not squeezed. cage, both end portions 11b adjacent each vesicle 11, there is air in the interior of the vesicles 11 contacts when filled, by the internal air charge and each vesicle 11 When it is, in the central portion in the vertical and horizontal directions of the cushioning material 2, it inflated thin recess 1a is, the peripheral portion, which bulges thicker projection 1b is formed respectively, intermediate in the recess 1a Provided is an air-filled cushioning material characterized in that the object to be protected 3 can be brought into contact with the top of the portion 11a in the thickness direction .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, an example of an embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a cushioning material showing an example of the embodiment, and FIG. 4 is a perspective view showing a usage state of the cushioning material.
[0008]
As the sheet of the material constituting the cushioning material of the present invention, a soft resin sheet made of polyethylene or the like having no air permeability is used. In this example, two rectangular sheets are used. A seal 13 is formed on a part of the sheets by means such as thermocompression bonding, whereby vesicles 11 as shown in FIG. 1A are formed in this example. In this example, two sheets are used, but one sheet may be folded, and the cushioning material can be formed by various means.
In this example, the vesicle 11 is a strip-like long and narrow space formed in the vertical direction, and a plurality of the vesicles are continuously formed in the left-right direction to form the air enclosure 1. Yes.
[0009]
As shown in FIG. 2 (A), a squeezing seal 13a is formed on the intermediate portion 11a in the vertical direction of the vesicle 11 so as to protrude from the seal 13 separating the vesicles in the left-right direction. Thereby, when air is enclosed in the vesicle 11, as shown in FIG. 3, the intermediate part 11a is thin, and the both end parts 11b swell thickly. As shown in FIG. 2 (A), the shape of the restricting seal 13a may be such that the entire portion necessary for restricting the intermediate portion 11a may be sealed, or intermittent as shown in FIG. 2 (B). A straight line shape or a dot shape as shown in FIG. Moreover, you may form with another figure and pattern, and it can implement with a various form.
As described above, a difference in the thickness of the vesicle 11 when the air is sealed can form a step 12 at the boundary between the intermediate portion 11a and the end portions 11b. When the cushioning material 2 is wound around the protection object 3 as shown in FIG. 4, the protection object 3 comes into contact with the intermediate portion 11 a and the protection object 3 is caught on the step 12 as shown in FIG. 3. The protected object 3 is held in the vertical direction.
From the above state, it may be stored in the cardboard box 4 as in the conventional case, or the cushioning material 2 may be used as a packaging material, that is, may be left exposed as it is. In this case, the surface of the cushioning material 2 may be decorated with a pattern or the like, and the visual effect may be aimed at.
[0010]
By using it as described above, it is possible to perform the same function as a conventional foamed cushioning material. In addition, by removing the air filled in the vesicles 11, the volume can be easily reduced, and the volume can be reduced even when discarded.
[0011]
The buffer material 2 may be provided with notches for facilitating the tearing of the vesicles 11 in order to remove air from the vesicles 11 at the time of disposal.
Further, each vesicle 11 may be provided with a closing means such as a chuck or a check valve so that air in the vesicle 11 can be taken in and out as appropriate. Thereby, this buffer material 2 can also be reused.
[0012]
Further, in this example, as shown in FIG. 1B, the positional relationship of the step 12 between the parallel vesicles 11 is linearly arranged in the left-right direction, but the present invention is not limited to this. The step 12 is formed so as to take various forms such as a curved shape or a linear shape in an oblique direction according to the shape of the protection object 3, and an optimal contact state with the protection object 3 You may form so that it may become.
[0013]
As already described above, the cushioning material 2 is used by being wound around the object 3 to be protected as shown in FIG. Although it is different depending on the structure of 11, the air may be sealed in advance, or the cushioning material 2 before sealing the air may be wrapped around the protection object 3, and then the air may be sealed. good.
[0014]
Further, the cushioning material 2 may have joining means 23 such as a chuck 23a shown in FIG. 5A and a hook-and-loop fastener 23b shown in FIG. good. Thereby, in the state which wound the buffer material 2 around the protection target object 3, buffer material 2 can be fixed by said joining means. For this reason, the protection target object 3 can be wound easily.
The both end portions 21 and the front and back side surfaces 22 may be formed with the joining means 23 on both, or may be formed on either one of them. Therefore, various modifications can be made.
Further, although not shown in the figure, the both end portions 21 may be bonded in advance to form a cylindrical appearance.
[0015]
Next, another embodiment of the present invention will be described. Note that elements having the same function are denoted by the same reference symbols and description thereof is omitted.
6 shows a state in which the intermediate portion 11a ′ is not squeezed in the portion of the vesicle 11 near both ends in the left-right direction of the buffer material 2. Thereby, the recessed part 1a is formed in the center part, and the convex part 1b is formed in the surrounding part, respectively. A step 12 is formed between the concave portion 1 a and the convex portion 1 b of the cushioning material 2.
When this cushioning material 2 is used with respect to the protection object 3, as shown in FIG. 7, the protection object 3 is coordinated so as to abut against the recess 1a. FIG. 7A shows a case where the cushioning material 2 is arranged in the vertical direction of the protection target object 3, and FIG. 7B shows a case where the cushioning material 2 is coordinated in the left-right direction of the protection target object 3.
In addition, when the comparatively small protrusion part 31, such as a switch, a terminal, a dial, etc. exists in the surface of the protection target object 3, as shown to FIG. 7 (A) (B), as shown in FIG. By further forming the concave portion 1c in the portion corresponding to the protruding portion 31 of the sheet, interference between the protruding portion 31 and the cushioning material 2 can be avoided, and the protection target 3 can be held more reliably. On the contrary, when a depressed portion such as a hole exists on the surface of the protection object 3, it is possible to further form a corresponding convex portion in the concave portion 1a of the cushioning material 2 (not shown).
By making the cushioning material 2 into the shape as described above, it is possible to deal with various shapes of the protection object 3, and it is possible to have the same usability as a conventional foamed polystyrene.
Moreover, it is good also as what provides this recessed part 1a and the convex part 1b in multiple places in the cushioning material 2 of 1 sheet. Further, in accordance with the shape of the protection object 3, the recess 1 a and the protrusion 1 b (step 12) are formed to take various forms such as a curved shape and a linear shape in an oblique direction. Therefore, it may have a shape that is in an optimal contact state, and can be implemented with various changes.
In this example, the cushioning material 2 is used in a flat state. However, the cushioning material 2 may be used by being wrapped around the protection object 3 as described above.
[0016]
【The invention's effect】
In the first invention of the present application, the object to be protected can be securely held by forming a step in the vesicle, and the volume can be easily reduced by removing the air filled in the vesicle. Therefore, it is possible to provide a cushioning material that is not bulky at the time of disposal.
[0017]
In the second invention of the present application, in addition to the effect of the first invention of the present application, the position of the cushioning material can be fixed by the joining means, so that the object to be protected can be easily wrapped.
[0018]
In the third invention of the present application, the object to be protected can be reliably held by forming the convex portion and the concave portion in the air sealing portion. And by extracting the air with which the air enclosure part was extracted, volume can be reduced easily and the buffer material which is not bulky also at the time of disposal can be provided.
[Brief description of the drawings]
FIGS. 1A and 1B are perspective views showing a cushioning material according to an embodiment of the present invention, in which FIG. 1A shows a state before air sealing, and FIG. 1B shows a state in which air is sealed.
FIGS. 2A, 2B, and 2C are enlarged views of main parts showing various forms of seals.
FIG. 3 is an enlarged cross-sectional view of a main part showing a state in which an object to be protected is wrapped with a cushioning material according to an example of the present invention.
FIG. 4 is a perspective view showing a usage state of the cushioning material according to an example of the embodiment of the present invention.
5A and 5B are perspective views showing a use state of a cushioning material according to another embodiment of the present invention, in which FIG. 5A shows a case using a chuck, and FIG. 5B shows a case using a hook-and-loop fastener.
FIG. 6 is a perspective view showing a cushioning material according to still another embodiment of the present invention.
7A and 7B are cross-sectional views showing a use state of a cushioning material according to still another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air enclosure part 1a Concave part 1b Convex part 11 Vesicle 11a Middle part of vesicle, Concave part 11b Both end part of vesicle, Convex part 11a 'Middle part of vesicle in the part near both ends in the left-right direction 12 Step 13 Seal 13a Restriction Seal 2 Buffer material 21 End of buffer material 22 Side surface of buffer material 23 Joining means

Claims (3)

In the cushioning material (2) in which the air-sealed portion (1) is formed by superimposing sheets made of a soft resin having no air permeability,
The air enclosing part (1) is formed such that a plurality of strip-shaped vesicles (11) formed in series in the vertical direction are continuous in the horizontal direction,
The vesicle (11) is a part of the sheets, and a plurality of seals (13) are formed by means such as thermocompression bonding , so that the air enclosure (1) is partitioned,
Among the vesicles (11), the middle part (11a) in the vertical direction is formed with a squeezing seal (13a) so as to protrude from the seal (13) in the left-right direction,
Thereby, when the inside of the vesicle (11) is filled with air, the middle part (11a) is thin and both end parts (11b) are swelled thickly.
In this case, the vertical dimension of the intermediate part (11a) and the vertical dimension of both end parts (11b) are the same in any vesicle (11),
Due to the difference in thickness, the cushioning material (2) has a step (12) protruding in the thickness direction so as to be linearly aligned in the left-right direction at the boundary between the intermediate portion (11a) and both end portions (11b). Is formed ,
When air is enclosed in the vesicle (11), the intermediate part (11a) is a part where the protection object (3) abuts,
The contact is made at the top in the thickness direction of the intermediate portion (11a),
Said level | step difference (12) is a part by which the protection object (3) is hold | maintained with respect to the up-down direction by the protection object (3) being caught in the top part in the thickness direction,
The air-filled cushioning material, wherein the two adjacent end portions (11b) are in contact with each other when the vesicle (11) is filled with air.   The joining means (23) is formed on at least one of the left and right end portions (21) of the cushioning material (2) or at least a part of the front and back side surfaces (22). The air-filled cushioning material described. In the cushioning material (2) in which the air-sealed portion (1) is formed by superimposing sheets made of a soft resin having no air permeability,
The air enclosing part (1) is formed such that a plurality of strip-shaped vesicles (11) formed in series in the vertical direction are continuous in the horizontal direction,
The vesicle (11) is a part of the sheets, and a plurality of seals (13) are formed by means such as thermocompression bonding , so that the air enclosure (1) is partitioned,
The squeezing seal (13a) is formed such that the vesicle (11) at the central portion in the left-right direction of the cushioning material (2) protrudes from the seal (13) in the left-right direction to the intermediate portion (11a) in the vertical direction. Is formed,
Thereby, when the inside of the vesicle (11) is filled with air, the middle part (11a) is thin and both end parts (11b) are swelled thickly.
In this case, the vertical dimension of the intermediate part (11a) and the vertical dimension of both end parts (11b) are the same in any vesicle (11),
Due to the difference in thickness, the central direction of the cushioning material (2) in the left- right direction is arranged in a straight line in the left-right direction at the boundary between the intermediate part (11a) and both end parts (11b). A step (12) projecting toward is formed,
Said level | step difference (12) is a part by which the protection object (3) is hold | maintained with respect to the up-down direction by the protection object (3) being caught in the top part in the thickness direction,
The vesicles (11) in the vicinity of both ends in the left-right direction of the cushioning material (2) are in a state where the intermediate portion (11a ′) is not squeezed,
The adjacent end portions (11b) of each vesicle (11) are in contact with each other when the inside of the vesicle (11) is filled with air ,
As described above, when each vesicle (11) is filled with air, the buffer material (2) has a thinly inflated recess (1a) at the center in the vertical and horizontal directions, and the peripheral portion is thick. Inflated convex portions (1b) are respectively formed,
An air-filled cushioning material, characterized in that the object to be protected (3) can be brought into contact with the top in the thickness direction of the intermediate portion (11a ) in the recess (1a).

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