JP4523669B1 - Protective packaging - Google Patents

Abstract

It is possible to perform a fluoroscopic confirmation of a transported object even from the outside, and to prevent the transported object from being caught on a nearby obstacle or the like when transporting the packed transported object.
SOLUTION: A protective packaging device 1 that is wrapped around a transported material P and covered with a bubble cushioning material 2 made of a see-through material having air cushion properties and stretchable along the winding direction of the bubble cushioning material 2 The stretchable member 3 is configured. The bubble cushioning material 2 includes an intermediate sheet 2a and a bulging portion 2b formed by continuously forming the bulging portions 2b along the longitudinal and lateral directions so that the distance between the foam cushioning materials 2 corresponds to the expansion and contraction width. A bottom sheet 2c that covers the bottom opening side of the swelled part in an air-sealed state, and a head protection sheet 2d that covers the head side of the bulging part 2b. In addition, the elastic member 3 is formed by bending the flat surface portion around the bulging portion 2b and reducing or constricting the bubble cushioning material 2 in a bellows shape along the winding direction between the intermediate sheet 2a and the head protection sheet 2d. Place between.
[Selection] Figure 1

Description

  The present invention can easily pack various transport items such as furniture and electrical appliances, for example, when moving, moving, etc., and also the surface of the transport items, as well as surrounding and peripheral furniture when moving, construction members, The present invention relates to a protective packaging that can be transported without damaging obstacles.

  Conventionally, when transporting various moving items such as furniture and electrical appliances by moving, moving, etc., in order to protect them, for example, a blanket or the like is put on the conveyed item and then tied with a rope or a strap, As shown in Patent Document 1, a quilting material formed by stuffing polyester white cotton or the like between a front cloth and a back cloth is covered with a protective cover for carrying furniture in a cylindrical shape and transported. .

  The protective cover for transporting furniture shown in Patent Document 1 is formed by sewing a quilting material into a cylindrical shape, and sewing an elastic string that can be stretched around the barrel of the cylindrical body. Cover the entire transported object with the protective cover, and cover the upper and lower surfaces or left and right end surfaces of the transported object at both ends of the cylinder. For this reason, it is said that the rope for binding the opening portions at both ends is too strong to be used.

  Further, there is a packaging material having buffering properties as disclosed in Patent Document 2 and a method for producing the same. The structure is formed by pasting kraft paper or the like on an embossed cellular cushion sheet formed on a plastic film.

  Furthermore, there exists a buffer cloth body as disclosed in Patent Document 3 and a manufacturing method thereof. The structure is formed by sewing and fixing a flat belt-like rubber on at least the inner and outer surfaces of a cloth body integrated with a front cloth, a back cloth and a buffer body by quilting.

Japanese Patent Laid-Open No. 10-175668 JP-A-3-36027 Japanese Patent Laid-Open No. 7-112767

  However, in the case of carrying a blanket or the like and covering it with a rope or a strap or the like as in the prior art, the blanket itself has a certain degree of weight for packing and protection using the blanket. In addition, a certain thickness and surface area are required to ensure sufficient cushioning properties so that the transported material is not damaged by contact with surrounding obstacles during transport. It will be heavier. Moreover, since a rope for binding is used after covering the transported item with a blanket, the packing operation is very troublesome.

  In addition, since the protective cover made of quilting material in which polyester white cotton or the like is packed between the front cloth and the back cloth according to Patent Document 1 has a multi-layer structure, the work itself is bulky in terms of weight. It becomes difficult. Moreover, since white polyester cotton or the like is used as a cushioning material, the price of the protective cover itself is high.

  In Cited Document 2, kraft paper or the like is attached to a cellular cushion sheet formed with a number of embossments with a plastic film. After packaging, it is difficult to visually recognize the packaged furniture and the like from the outside. Become. Thus, if it is difficult to visually recognize from the outside, it is necessary to display the type / content of the packaged item, and the handling becomes troublesome.

  Further, in Patent Document 3, since a flat belt-like rubber is sewn and fixed on the surface of the cloth body, the rubber may be caught on the surrounding obstacles when carrying the transported goods after packing. There is a risk of falling over, damaging the rubber, or damaging surrounding obstacles along with the transported goods.

  Therefore, the present invention was created in view of the existing circumstances as described above, and it is possible to easily carry the packing work of the transported goods by making it lightweight, and it can be manufactured inexpensively and easily, and the packing state However, it is necessary to provide a protective packing tool that can see through the contents of the transported goods, and that can prevent the transported goods from falling over, for example, being caught by nearby obstacles when transporting the packed transported goods. With the goal.

In order to solve the above-described problem, in the present invention, the protective packaging tool 1 is wound around the outer periphery of the transported material P, and the protective packaging tool 1 has an air cushion property and can be seen through. It is provided with a bubble cushioning material 2 made of a material and a stretchable member 3 that is installed so as to be stretchable along the winding direction of the bubble cushioning material 2, and the bubble cushioning material 2 is expanded and contracted along the winding direction. An intermediate sheet 2a formed by continuously forming the bulging portion 2b along the vertical and horizontal directions so as to be spaced apart according to the width, a bottom sheet 2c for closing the bottom opening side of the bulging portion 2b in an air-sealed state, The head protection sheet 2d that covers the head side of the protruding portion 2b is provided, and the elastic member 3 reduces the bubble cushioning material 2 in a bellows shape along the winding direction by bending a flat surface portion around the protruding portion 2b. Arranged between the intermediate sheet 2a and the head protection sheet 2d so as to be narrowed Is shall.
The bulging part 2b has a width x of a flat surface portion between the bulging parts 2b along the winding direction wider than a width y between the bulging parts 2b along the direction orthogonal to the winding direction. Continuously formed along the direction
Can be configured.
The elastic members 3 are arranged between the bulging portions 2b adjacent to each other along the arrangement direction of the bulging portions 2b arranged along the winding direction of the bubble cushioning material 2 and perpendicular to the winding direction. Can be.
The bulging portion 2b may have a planar rectangular shape in which the width along the winding direction is smaller than the width along the direction orthogonal to the winding direction.
The wall thicknesses t1 and t2 of the intermediate sheet 2a and the bottom sheet 2c can be formed thicker than the wall thickness t3 of the head protection sheet 2d.
The bubble cushioning material 2 can be formed in a cylindrical shape with the head protection sheet 2d on the inside and the bottom sheet 2c on the outside.
The expansion / contraction member 3 is formed in a ring shape and can be built in the bubble cushioning material 2 formed in a cylindrical shape.

In the protective packaging device 1 according to the present invention configured as described above, the bubble cushioning material 2 makes the protective packaging device 1 itself light in weight, facilitates the packing work of the transported material P, and at the time of transportation. Provide cushioning for surrounding obstacles and other obstacles, and not only the transport object P itself when transporting the transport object P, but also the surrounding / peripheral furniture when moving, construction materials such as houses and buildings, etc. Do not damage them even if they hit.
The elastic member 3 is stretched when the protective packaging tool 1 is wound around the transported material P to extend and expand the wound inner diameter of the protective packaging device 1 itself, and the transporting material P is transported by the protective packaging device 1. Is packed, the elastic member 3 holds the bubble cushioning material 2 in pressure contact with the outer periphery of the transported material P.
Furthermore, the expansion / contraction member 3 is placed between the intermediate sheet 2a and the head protection sheet 2d so that it is protected without being exposed to the outside. For example, the transported object P is prevented from being overturned by hooking the elastic member 3 on an obstacle or the like. The bulging portion 2b having a rectangular shape in which the width along the winding direction is smaller than the width in the direction perpendicular to the winding direction easily expands and contracts the bubble cushioning material 2 itself along the winding direction. The protective packing tool 1 is easily handled when it is put on or removed from the transported item P.
The bubble cushioning material 2 that can be seen through allows the carrying object P itself, its contents, etc. to be easily confirmed by enabling the see-through from the outside even when the carrying object P is packed.
The expansion / contraction member 3 arranged between the bulging portions 2b adjacent to each other in the direction orthogonal to the winding direction of the bubble cushioning material 2 is held and positioned by the bulging portions 2b and formed into a cylindrical shape. 2, it is not necessary to specially fix the intermediate sheet 2a or the head protection sheet 2d.
The expansion / contraction member 3 which is built in the bubble cushioning material 2 formed in a cylindrical shape and has a ring shape makes the expansion / contraction action along the winding direction of the bubble cushioning material 2 easy, and covers the transported material P. When the protective packaging material 1 itself is stretched, the packaging is further facilitated, and the reduction when not in use is made smooth and compact.

  According to the present invention, it is possible to easily pack the transported object P by making it lightweight, and it can be manufactured at low cost and easily. In addition to the transported object P to be packed, various members around and around In addition to damaging the transported goods P, the transported goods P can be seen through from the outside, and when transporting the transported goods P after packing, they can be caught by nearby obstacles, for example, causing the transported goods P to fall over. It can be prevented in advance.

  That is, the present invention is that the protective packaging device 1 can be expanded and contracted along the winding direction of the bubble cushioning material 2 made of a see-through material having an air cushion property and the bubble cushioning material 2 covered on the transported material P. This is because it is provided with the elastic member 3 that is installed in the interior, and as a result, it is lighter in weight, less expensive than a conventional protective cover made of quilting material filled with white cotton made of polyester, etc. Simple configuration. In addition, the packing work can be easily performed without being bulky at the time of packing the transport object P, and the cushioning property against contact with various members and obstacles at the time of transport can be sufficiently functioned.

  Further, the bubble cushioning material 2 includes an intermediate sheet 2a formed by continuously forming the bulging portions 2b along the longitudinal and lateral directions so that the intervals between the foam cushioning materials 2 are spaced apart according to the expansion and contraction width. A bottom sheet 2c that covers the bottom opening side of the protruding portion 2b in an air-sealed state, and a head protection sheet 2d that covers the head side of the protruding portion 2b are provided. The elastic member 3 is a flat surface portion around the protruding portion 2b. Is placed between the intermediate sheet 2a and the head protection sheet 2d so that the bubble cushioning material 2 is contracted or constricted in a bellows shape along the winding direction, so that the intermediate sheet 2a and the head protection sheet By the self-contraction of the expansion / contraction member 3 arranged between 2d, the flat surface portion around the bulging portion 2b can be smoothly bent, and the protective packing device 1 can be easily reduced or constricted in a bellows shape. it can.

  As a result, when the protective packaging tool 1 is put on the transported article P, the protective packaging tool 1 on which the transported article P is wound can be easily extended or reduced along the winding direction. The packing work of the transported goods P can be performed smoothly. Moreover, in the state where the protective packaging 1 is placed on the transported article P, the thickness t1, t2 of each of the intermediate sheet 2a and the bottom sheet 2c is thicker than the thickness t3 of the head protecting sheet 2d. In combination with the fact that the bulging portion 2b does not collapse, the protective function of the protective packaging 1 against the transported item P is not lost. Moreover, since the expansion-contraction member 3 is a state protected without being exposed outside by being arrange | positioned between the intermediate sheet 2a and the head protection sheet 2d, when carrying the transported goods P after packing. The expansion / contraction member 3 is not caught by surrounding obstacles or the like, the expansion / contraction member 3 is not cut or damaged, and the fall of the transported object P or the like due to the catch can be prevented in advance.

  Further, since the bubble cushioning material 2 is formed of a transparent material, for example, a transparent synthetic resin film / sheet material, it covers the transported material P and can be seen through from the outside even in a packaged state. It is possible to easily confirm the content itself and its contents. Not only that, it is possible to confirm the perspective from the outside, so there is no need to add an identification label or tag to display the contents of the goods to be transported. is there.

  In addition, the expansion / contraction member 3 extends between the bulging portions 2b adjacent to each other in the direction perpendicular to the winding direction along the arrangement direction of the bulging portions 2b arranged along the winding direction of the bubble cushioning material 2. Since the elastic members 3 are arranged, the elastic members 3 are held by the bulging portions 2b arranged adjacent to each other in a direction orthogonal to the winding direction, thereby preventing displacement of the elastic members 3 in the bubble cushioning material 2. , And can be smoothly contracted along the winding direction. In addition, it is not necessary to fix the elastic member 3 in order to prevent positional displacement inside the bubble cushioning material 2, and the manufacturing is facilitated.

  The bubble cushioning material 2 has a flat rectangular shape in which the bulging portion 2b of the intermediate sheet 2a has a width along the winding direction that is smaller than a width in a direction perpendicular to the width, thereby along the winding direction. Combined with the fact that there is a flat surface portion that can be bent between the bulging portions 2b, it can be easily expanded and contracted along the winding direction, and it can be covered with or removed from the transported material P. 1 can be handled easily and can be collected in a compactly reduced state even when not in use.

  In addition, the bubble cushioning material 2 is formed in a cylindrical shape with the head protection sheet 2d on the inside and the bottom sheet 2c on the outside, so that the thickness t2, t1 of the bottom sheet 2c and further the intermediate sheet 2a can be reduced. Combined with the thickness t3 of the part protection sheet 2d, the winding operation and work of the bubble cushioning material 2 can be facilitated and formed on the intermediate sheet 2a. This helps to improve the protection of the bulging portion 2b against external impacts and the like.

  Since the expansion / contraction member 3 is housed in a bubble cushioning material 2 formed in a cylindrical shape and has a ring shape, the expansion / contraction along the winding direction of the bubble cushioning material 2, and thus the expansion / contraction action of the protective packaging device 1 itself. It is easy and smooth, can be smoothly stretched when it is put on the transported material P, and reduced when it is removed from the transported material P, and can be compacted when not in use. Moreover, it can be easily installed along the winding direction simply by connecting the ends of the expansion and contraction member 3 after being placed in the bubble cushioning material 2 and making it into a ring shape. It is also possible to fix and support the stretchable member 3 that is made to adhere to the intermediate sheet 2a and the head protection sheet 2d of the bubble cushioning material 2 at predetermined intervals.

  Moreover, the protective packing tool 1 is formed in a cylindrical shape so as to cover the transported object P from one end side, so that the transported object P can be covered from one end side, and packing work can be easily performed.

  Note that the reference numerals given in the means for solving the above-described problems and the effects of the invention are given for easy reference to the parts showing the constituent parts shown in the drawings. However, the present invention is not limited to the structure / shape indicated by the reference numeral.

It is a partially cutaway perspective view showing an embodiment for carrying out the present invention. (A) is a disassembled perspective view when arrange | positioning an expansion-contraction member in a bubble cushioning material, (b) is a perspective view of the state which has arrange | positioned the expansion-contraction member in a bubble cushioning material. It is a partially notched top view which shows the inside of the foam cushioning material of the state which has arrange | positioned the expansion-contraction member on the intermediate sheet upper surface between the bulging parts. (A) is XX principal part sectional drawing in FIG. 3 at the time of reduction, (b) is XX principal part sectional drawing similarly at the time of expansion | extension. FIG. 4 is a cross-sectional view of the main part YY in FIG. 3. It is a perspective view which shows an example which puts a protective packing tool on a conveyed product.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 shown in the figure denotes a protection formed in, for example, a cylindrical shape or a flat sheet shape so as to cover the conveyed product P from one end side. It is a packing tool. As shown in FIG. 1, the protective packaging device 1 is composed of a bubble cushioning material 2 having a large number of independent air chambers for buffering impacts and the like from the outside. As will be described later, the bubble cushioning material 2 includes an intermediate sheet 2a, a bottom sheet 2c, and a head protection sheet 2d. Each of the sheets 2a, 2c, and 2d is made of a flexible material such as polyethylene, soft polyvinyl chloride, or polyvinylidene chloride. Is manufactured from a sheet film having a predetermined thickness t1, t2, t3. Needless to say, the bubble cushioning material 2 itself is not limited to these materials as long as the cushioning property can be obtained by forming a bulging portion 2b described later that forms an air chamber. In addition, by forming the bubble cushioning material 2 itself from a flame-retardant material, it is effective in preventing damage, breakage, burnout, etc. due to fire or the like during transportation of the transported material P.

  As shown in FIG. 2, the bubble cushioning material 2 itself is formed by bulging and forming a plurality of independent air chambers in an intermediate sheet 2a cut into a belt having a predetermined width and a rectangular shape having a predetermined width and length. For example, a low prismatic bulging portion 2b is provided in series in the vertical and horizontal directions, and a flat bottom sheet 2c is thermally welded so as to seal the bottom opening side of each bulging portion 2b. A head protection sheet 2d is thermally welded or the like so as to cover the head of each bulging portion 2b on the bulging head side of the protruding portion 2b. Yes. In this way, air is confined in the bulging portion 2b and air is also confined halfway around the bulging portion 2b, and the function as a cushioning material is realized by the air pressure.

  Further, the shape of the bulging portion 2b of the bubble cushioning material 2 is not limited to a prismatic shape, and can be formed as a cylindrical shape, an elliptical prism shape, a semi-spherical shape, or a combination thereof. The width diameter, height, etc. are not particularly limited. As shown in the drawing, the bulging portion 2b has a planar rectangular shape in which the width along the winding direction is smaller than the width along the direction orthogonal to the winding direction, and is conveyed as described later. By making the bulging portions 2b between the bulging portions 2b in the winding direction when covered with the object P into flat surface portions with a predetermined interval x, the expansion and contraction action along the winding direction can be further smoothed, and handling properties are improved. This can be further improved.

  In the bubble cushioning material 2 including the intermediate sheet 2a, the bottom sheet 2c, and the head protection sheet 2d, the thicknesses t1 and t2 of the intermediate sheet 2a and the bottom sheet 2c are thicker than the thickness t3 of the head protection sheet 2d. It is formed in a meat shape, and when it is covered with the transported item P, the thick bottom sheet 2c is arranged on the outside, and the thin head protection sheet 2d is arranged on the inside.

  The bubble cushioning material 2 that is wound when covered with the transported material P is configured to be expanded and contracted along the winding direction. For this reason, the bulging portions 2b are mutually connected along the winding direction. The gap width (x in FIG. 3) is larger than the mutual gap width (y in FIG. 3) along the direction orthogonal to the winding direction, and the flat surface portion of the gap width x is contracted by bending. It is like that.

  The shrinkage of the bubble cushioning material 2 is due to the stretching action of the stretchable member 3 built in the bubble cushioning material 2 itself. That is, on the upper surface of the intermediate sheet 2a, a storage space wider than the space width y between the bulging portions 2b is provided along the winding direction, for example, every three rows of the bulging portions 2b. For example, the elastic member 3 such as a rubber cord, preferably a flat rubber cord material or a round rubber cord material, is fixed to the intermediate sheet 2a surface or the head protection sheet 2d surface at appropriate intervals along the winding direction. The flat surface portion of the space width x between the bulging portions 2b of the bubble cushioning material 2 is expanded and contracted by expansion and contraction of the expansion and contraction member 3. In this way, the bubble cushioning material 2 itself is contracted or constricted in a bellows shape by the self-contraction of the elastic member 3 and exhibits as much flexibility, impact resistance, and elasticity as possible. It is as a thing. Of course, the arrangement of the elastic members 3 is not limited to every three rows of the bulging portions 2b.

  Further, as shown in FIG. 3, the spacing width y between the two rows of the bulging portions 2 b adjacent in the direction orthogonal to the winding direction of the bubble cushioning material 2 is separated from the expansion member 3, for example. By doing so, the storage space is arranged and formed along the winding direction, and the elastic member 3 is stored in the storage space. Of course, if the expansion / contraction member 3 can be sufficiently stored in the space width y between the bulging portions 2, the storage space may not be formed and arranged specially.

  As shown in the figure, the bubble cushioning material 2 itself, that is, the protective packing tool 1 is scheduled to be formed in a cylindrical shape, but is not formed into a cylindrical shape in this way and wound around the transported material P. For example, the whole may be formed in a flat rectangular shape, a belt shape, or the like so that it can be covered by rotation, and after being covered, it may be fixed so that the ends can be fixed together. When configured in a cylindrical shape, the head protection sheet 2d is arranged on the inner side, the bottom sheet 2c is arranged on the outer side, and the bubble cushioning material 2 is rolled into a cylindrical shape, and the edge portions are fixed to each other by heat welding or hook-and-loop fasteners. By doing it, it is set as the protective packaging tool 1 which exhibits the cylindrical shape of a predetermined diameter.

  Further, the spacing width x between the bulging portions 2b along the winding direction is a flat surface portion that is separated corresponding to the expansion / contraction width, and when storing the expansion / contraction member 3 in the storage space, The flat surface portions of the intermediate sheet 2a, the bottom sheet 2c, and the head protection sheet 2d in which the bulging portion 2b is not formed are bent, and the whole is constricted in a bellows shape or reduced. By storing the expansion / contraction member 3 in the storage space and further adhering appropriately, the bubble cushioning material 2 is always in a contracted state (see FIG. 4A).

  It should be noted that the flat sheet portions of the intermediate sheet 2a, the bottom sheet 2c, and the head protection sheet 2d are not folded, and the expansion member 3 is expanded in advance while the flat surface portions are stretched. The flat surface portion is bent by self-contraction of the elastic member 3, and the whole is constricted in a bellows shape or reduced (see FIG. a)).

  On the other hand, as shown in FIG. 4 (b), in the state in which the elastic member 3 is extended, the bubble cushioning material 2 is pulled in the expansion / deployment direction, and the bulging portion 2b is not formed. The flat surface portions of the sheet 2c and the head protection sheet 2d are stretched along the elastic member 3. By doing so, when the protective packaging device 1 is put on the transported item P, the elastic member 3 is extended, and the flat surface portion where the bulging portion 2b is not formed is also extended, and the cylindrical bubble buffering is performed. The material 2 is in a state of being expanded or expanded depending on the size of the conveyed product P.

  The expansion / contraction member 3 itself only needs to reduce or reduce the diameter of the bubble cushioning material 2 itself. However, when the bubble cushioning material 2 is formed in a cylindrical shape, even if the expansion / contraction member 3 itself is in a ring shape (including one in which the ends of the linear expansion / contraction member 3 are joined together) The bubble cushion 2 may be reduced by being appropriately fixed to the surface of the sheet 2a or the head protection sheet 2d. Further, it is not necessary to be formed by a single piece that is continuous in the winding direction, and may be reduced in diameter by being fixed to the intermediate sheet 2a and the head protection sheet 2d at appropriate intervals in the stretched state. Can be divided and arranged in a plurality in the winding direction. However, the elastic member 3 is formed in a ring shape and accommodated between the bulging portions 2b along the interval width y direction so that the elastic member 3 does not need to be fixed to the intermediate sheet 2a and the head protection sheet 2d. can do.

  Note that, regardless of whether the bubble cushioning material 2 is cylindrical or flat, the elastic members 3 are arranged in a plurality of strips parallel to each other along the winding direction of the protective packaging tool 1 and at predetermined intervals. Further, for example, it may be fixed to the surface of the intermediate sheet 2a or the surface of the head protection sheet 2d by a support portion (not shown) by an adhesive or heat welding.

  In addition, the protective packaging 1 itself corresponds to each article of different sizes / sizes, such as small items, furniture, furniture, electrical products, etc. Different sizes, cylinder diameters, etc., with different widths / lengths, etc., are pre-configured and used in correspondence with the transported goods P on site such as moving / moving. It is good to be able to do it.

  In addition, when the protective packaging tool 1 is configured to be flat, for example, rectangular, belt-shaped, etc., the winding length is adjusted according to the size of the transported material P so that the ends are fixed to each other. It is good to leave. For example, at least a plurality of belt-shaped surface fasteners may be arranged on the contact surfaces of the overlapping portions of the end portions in a direction perpendicular to the winding direction at an appropriate interval, or wound. The hook-and-loop fasteners arranged in parallel with the appropriate length along the direction are arranged as fastening means by arranging or the like.

  Next, an example of use of the configuration configured as described above will be described. As shown in FIG. 6, when the protective packaging tool 1 formed in a cylindrical shape is put on the transported article P, it is in a reduced state. The opening of one end of a certain protective packaging tool 1 is spread in the diameter-expanding direction and then covered with the transported item P. In addition, the length of the cylinder of the cylindrically formed protective packaging tool 1 is sufficiently longer than the size of the transported material P.

  At this time, as shown in FIG. 4 (b), the expansion and contraction member 3 is extended so that the cylindrical bubble cushioning material 2 is expanded according to the size of the transported material P. The tool 1 is smoothly put on the conveyed product P.

  After the protective packing tool 1 covers and transports the object to be transported P, both the opening side and the middle part of the protective packing tool 1 are both constricted by the self-contraction of the elastic member 3, and the elastic member 3 is conveyed. The object P is wound, and the bubble cushioning material 2 is held in pressure contact with the outer periphery of the conveyed object P. In this way, the packing operation is performed without being bulky at the time of packing the transported material P, and the cushioning property against the contact with the surrounding and surrounding obstacles at the time of transporting is sufficiently functioned.

  In addition, although description by illustration was abbreviate | omitted, air cushion property is further improved by comprising so that the bubble cushioning material 2 may become double inside and outside as another example of the above-mentioned cylindrical or flat protective packing tool 1. It is also possible to make it. Alternatively, as still another example of the above-described cylindrical protective packaging device 1, the plurality of elastic members 3 described above are sandwiched between two bubble cushioning materials 2 that are arranged in pairs in and out. It may be fixed. Thus, the expansion / contraction member 3 is in a protected state by adopting an inner / outer multilayer structure with the expansion / contraction member 3 made of the double bubble cushioning material 2 interposed.

P ... Thickness t1 ... Thickness of intermediate sheet t2 ... Thickness of bottom sheet t3 ... Thickness of head protection sheet 1 ... Protective packing device 2 ... Bubble cushioning material 2a ... Intermediate sheet 2b ... Swelling part 2c ... Bottom sheet 2d ... head protection sheet 3 ... telescopic member
x: Spacing width between the bulging portions along the winding direction y: Spacing width between the bulging portions along the direction orthogonal to the winding direction

Claims (2)

A protective packing device that is wound around the outer periphery of the transported article, and the protective packing device is expanded and contracted along the winding direction of the bubble cushioning material made of a transparent material having air cushioning properties and the bubble cushioning material. A telescopic member that is capable of being installed,
The bubble cushioning material has a flat surface between the bulging portions along the winding direction along the vertical and horizontal directions so that the space between the bubble cushioning materials is spaced apart according to the expansion and contraction width along the winding direction. Intermediate sheet formed by continuously forming the width of the portion wider than the width between the bulging portions along the direction orthogonal to the winding direction, and the bottom sheet for closing the bottom opening side of the bulging portion in an air-sealed state A head protection sheet covering the head side of the bulging portion,
The expansion / contraction member bends the flat surface portion around the bulging portion and winds the bubble cushioning material between the intermediate sheet and the head protection sheet so as to reduce or narrow the bubble cushioning material in a bellows shape along the winding direction . Along the arrangement direction of the bulging parts arranged along the turning direction and arranged between the bulging parts adjacent in the direction orthogonal to the winding direction, the bubble cushioning material is embedded. Protective packing equipment. A protective packing device that is wound around an outer periphery of a conveyed product, the protective packing device including a bubble cushioning material formed in a cylindrical shape from a transparent material having air cushioning properties, and a winding of the bubble cushioning material An elastic member that is extendably stretchable along the direction,
The bubble cushioning material has a bulging portion that is spaced apart from each other along the winding direction according to the expansion and contraction width, and the width along the winding direction is changed to the width along the direction orthogonal to the winding direction. The width of the flat surface portion between the bulging portions along the winding direction is made wider than the width between the bulging portions along the direction orthogonal to the winding direction. An intermediate sheet formed continuously along the vertical and horizontal directions, a bottom sheet that closes the bottom opening side of the bulging part in an air-sealed state, and a head protection sheet that covers the head side of the bulging part,
The expansion and contraction member has a ring shape between the intermediate sheet and the head protection sheet so as to bend or flatten the bubble cushioning material in a bellows shape along the winding direction by bending the flat surface portion around the bulging portion , Arranged between the bulging parts adjacent to each other in the direction perpendicular to the winding direction along the arrangement direction of the bulging parts arranged along the winding direction of the bubble cushioning material, and is embedded in the bubble cushioning material And
The thickness of each of the intermediate sheet and the bottom sheet is formed to be thicker than the thickness of the head protection sheet, and the head protection sheet is arranged on the inner side and the bottom sheet is arranged on the outer side with respect to the conveyed item. A protective packaging device characterized by that.

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