Protective equipment and objects to be protected

Abstract

The present invention provides a protective device made of cardboard that reduces the restoring force of the bent portion and reduces the area of ​​the exposed portion of the protected object, thereby suppressing damage to the protected object, and a protected object to which the protective device is attached. [Solution] A protective device that protects the body of an object to be protected by covering at least a part of the body of the object to be protected which has a ridge, wherein the first recess and the second protrusion are arranged to interlock with a gap that forms part of a hole, and the second recess and the first protrusion are arranged to interlock with a gap that forms part of a hole.

Description

Technical Field

[0001] The present disclosure relates to protective devices and objects to be protected.

Background Art

[0002] Regarding a protective sheet or the like with a refrigerator as the object to be packaged, there are the following known examples.

[0003] Patent Document 1 discloses a refrigerator in which a box body having a drawer-type door and a rotary-type door is packaged with a stretch film, and the pressing force of the stretch film pressing the drawer-type door is 99 N or less.

[0004] Patent Document 2 discloses a packaging device in which a bent portion of a protective sheet made of cardboard is formed by crushing the layers of the core paper of the cardboard or by making a plurality of cuts or perforations. Further, Patent Document 2 discloses a packaging device in which a notch or hole having a shape that gradually spreads from a portion corresponding to one surface of the object to be packaged to portions corresponding to both side surfaces is formed in the bent portion of the protective sheet.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] When protective equipment is made of cardboard to prevent damage to the object being protected from collisions with surrounding objects during its relocation, a restorative force similar to that of a leaf spring remains in the folded portion of the cardboard. Therefore, it is conceivable to reduce this restorative force by providing slit-shaped holes in the folded portion. However, if such holes are provided, a part of the object being protected, such as the refrigerator door, will be exposed, leaving that exposed portion unprotected.

[0007] The stretch film described in Patent Document 1 is intended to prevent the door from opening, but if the protected object collides with a hard object in the surrounding area, there is a risk that the protected object may be dented or otherwise damaged.

[0008] The protective sheet described in Patent Document 2 is made of corrugated cardboard and can reduce the resistance to bending when the bendable portion is folded. However, it is thought that some restorative force may remain in the bendable portion. Also, because the dimensions of the notches or holes are relatively large, it is thought that the protected object itself may be damaged if it collides with a hard object in that area.

[0009] The purpose of this disclosure is to provide a protective device made of corrugated cardboard that reduces the restoring force of the bent portion and reduces the area of ​​the exposed portion of the protected object, thereby suppressing damage to the protected object, and a protected object to which the protective device is attached. [Means for solving the problem]

[0010] The protective device of this disclosure protects the body of an object to be protected by covering at least a portion of the body of the object to be protected which has ridges, and includes a corrugated cardboard sheet having holes, the holes being arranged to overlap with the folded portion of the corrugated cardboard sheet, the folded portion being provided to overlap with the ridges of the body of the object to be protected, the holes having a shape in which, when the flat portion of the corrugated cardboard sheet is viewed in a direction perpendicular to the flat portion, a first recess and a first convex portion of the corrugated cardboard sheet forming the perimeter of the hole are connected adjacently, and a second convex portion and a second recess of the corrugated cardboard sheet forming the perimeter of the hole are connected adjacently, the first recess and the second convex portion are arranged to interlock with a gap that constitutes part of the hole, and the second recess and the first convex portion are arranged to interlock with a gap that constitutes part of the hole. [Effects of the Invention]

[0011] According to this disclosure, it is possible to provide a protective device made of corrugated cardboard that reduces the restoring force of the bent portion and reduces the area of ​​the exposed portion of the protected object body to suppress damage to the protected object body, and a protected object to which the protective device is attached. [Brief explanation of the drawing]

[0012] [Figure 1A] This is a plan view and a partially enlarged view thereof showing the protective device of Example 1. [Figure 1B] This is an exploded view showing the periphery of hole 20 in Figure 1A. [Figure 2] This is a front view showing the protective device 10 in a folded state. [Figure 3] This is a perspective view showing a partially enlarged view of the protective device 10 in Figure 1 in a folded state. [Figure 4] This is a perspective view showing the protective device of Example 1 attached to a refrigerator. [Figure 5] This is a perspective view showing the protective device of Example 1 attached to a refrigerator. [Figure 6] This is an exploded perspective view showing the refrigerator and outer packaging with the protective equipment of Example 1 attached. [Figure 7] It is an exploded perspective view showing a refrigerator with the protective device of Example 1 attached and an outer package. [Figure 8] It is a plan view showing the protective device of Example 2. [Figure 9] It is a plan view showing the protective device of Example 3. [Figure 10] It is a plan view showing the protective device of the comparative example. [Figure 11] It is a side view showing the protective device of Example 4. [Figure 12] It is a plan view showing the protective device of Example 5.

Modes for Carrying Out the Invention

[0013] The present disclosure relates to a protective device for suppressing damage to a household electrical appliance such as a refrigerator (the main body of the object to be protected) when carrying it into and installing it indoors or the like.

[0014] Hereinafter, examples will be described with reference to the drawings. The protective device shown in the following examples is used to protect the door of the refrigerator. Note that the protective device of the present disclosure is not limited to protecting the refrigerator, but can protect various main bodies of objects to be protected. The protective device of the present disclosure may, for example, protect the body of a washing and drying machine in the field of household electrical appliances.

[0015] In this specification, the object to be protected includes a main body of the object to be protected having a first surface and a second surface whose directions are different from each other and adjacent to each other, and a ridge portion between the first surface and the second surface, and a protective device having a first protective surface facing the first surface and a second protective surface facing the second surface. For example, when the object to be protected is a refrigerator, the front part of the refrigerator (including the front part of the door) is taken as the first surface, the side part of the refrigerator (including the side part of the door) is taken as the second surface, and the boundary part between the front part and the side part is taken as the ridge portion. In the protective device, the surface facing the first surface is taken as the first protective surface, and the surface facing the second surface is taken as the second protective surface. In the following description, the "main body of the object to be protected" will be simply referred to as the "object to be protected".

Examples

[0016] FIG. 1A is a plan view of the protective device of Example 1 and a partially enlarged view thereof.

[0017] In the plan view on the right side of this figure, the protective device 10 is formed by forming holes 20 and cutout portions 30 in a single piece of cardboard (cardboard plate material).

[0018] As shown in the partially enlarged view on the left side of this figure, when the flat portion of the cardboard is viewed in a direction perpendicular to the flat portion, the hole 20 has a shape in which rectangular recesses 20a and protrusions 20b on the cardboard forming the periphery of the hole 20 are connected adjacent to each other (in the figure, they are connected vertically on the left side of the hole 20), and a shape in which rectangular protrusions 20c and recesses 20d are connected adjacent to each other (in the figure, they are connected vertically on the right side of the hole 20).

[0019] Here, the rectangular recess 20a is formed by a broken line composed of a first side located at the uppermost part in the figure among the peripheries of the hole 20, a second side connected to the left end of the first side in the figure, and a third side connected to the lower end of the second side in the figure. The reason for calling it "rectangular" is that, assuming another side not shown in the figure in addition to the first side, the second side, and the third side, the closed figure formed by these four sides is approximately rectangular. The recess 20a is concave to the right in the figure (i.e., convex to the left), and since it is a recess as a partial shape of the cardboard, it is called so.

[0020] Similarly, the rectangular protrusion 20b is formed by a broken line composed of the above-mentioned third side, a fourth side connected to the right end of the third side in the figure, and a fifth side connected to the lower end of the fourth side in the figure. Since the protrusion 20b is convex to the right in the figure (i.e., concave to the left), it is called so.

[0021] The protrusions 20c and recesses 20d also define terms as partial shapes around the hole 20 in a similar way of viewing.

[0022] Figure 1B is an exploded view showing the periphery of hole 20 in Figure 1A.

[0023] In Figure 1B, the four parts that make up the circumference of the hole 20, namely the recess 20a, the protrusion 20b, the protrusion 20c, and the recess 20d, are separated and shown as broken lines. A gap 20e is formed between the recess 20a and the protrusion 20c, and a gap 20f is formed between the protrusion 20b and the recess 20d.

[0024] Thus, in the same hole 20, the recess 20a and the protrusion 20c are arranged to interlock with a gap 20e between them, and the protrusion 20b and the recess 20d are arranged to interlock with a gap 20f between them. The gaps 20e and 20f are included in the hole 20. This forms a continuous hole 20. In the same hole 20, the recess 20a and protrusion 20b provided on the left side in the figure are referred to as the "first recess" and the "first protrusion" from the top of the figure. The protrusion 20c and recess 20d provided on the right side in the figure are referred to as the "second protrusion" and the "second recess" from the top of the figure.

[0025] As shown in Figure 1A, the folded portion 10f of the corrugated cardboard is indicated by a dashed line. The folded portion 10f is provided so as to pass through all of the multiple holes 20 arranged in series. The multiple holes 20 arranged in series and the folded portion 10f are provided on the left and right sides of the protective device 10 in the figure.

[0026] Furthermore, the recesses 20a, protrusions 20b, protrusions 20c, and recesses 20d may be trapezoidal in shape instead of rectangular. In the case of a trapezoidal shape, the first and third sides are hypotenuses. Rectangular and trapezoidal shapes can be collectively referred to as "quadrilateral shapes." Also, the "rectangular recesses and protrusions of corrugated cardboard" can be rephrased as "rectangular recesses and protrusions of corrugated cardboard."

[0027] In summary, when the flat surface of the corrugated cardboard sheet is viewed in a direction perpendicular to the flat surface, the hole 20 has a shape in which the recess 20a (first recess) and the protrusion 20b (first protrusion) of the corrugated cardboard sheet forming the perimeter of the hole 20 are connected adjacent to each other, and the protrusion 20c (second protrusion) and the recess 20d (second recess) of the corrugated cardboard sheet forming the perimeter of the hole 20 are connected adjacent to each other. The first recess and the second protrusion are arranged to interlock with a gap that forms part of the hole 20, and the second recess and the first protrusion are arranged to interlock with a gap that forms part of the hole 20.

[0028] In this figure, a continuous hole 20 has a configuration in which one recess and one protrusion are connected, but the protective device according to this disclosure is not limited to this configuration and may have a configuration in which two or more recesses and protrusions are connected alternately.

[0029] As shown in this figure, the dimensions of the hole 20 are width W and length L. The distance between two adjacent holes 20 is D. The width W is preferably 20 to 50 mm, and more preferably 30 to 40 mm. If a continuous hole 20 has a configuration in which one recess and one protrusion are connected, the length L is preferably 70 to 150 mm, and more preferably 100 to 120 mm. The distance D is preferably 20 to 50 mm, and more preferably 30 to 40 mm.

[0030] Furthermore, it is desirable that the gap between the interlocking recesses and protrusions be as small as possible, because this reduces the exposed area of ​​the object being protected. Specifically, the gap should preferably be 10 mm or less, more preferably 5 mm or less, and particularly preferably 2 mm or less.

[0031] The notch 30 is provided to allow a protective member for other parts of the refrigerator (not shown) to be properly fitted into place.

[0032] According to this embodiment, the length L of the hole 20 can be made larger than the total length of the bent portion 10f, thereby reducing the restoring force of the bent portion 10f.

[0033] Figure 2 is a front view showing the protective device 10 from Figure 1 in a folded state.

[0034] As shown in Figure 2, the lower protrusion 20b in one of the holes 20 is bent at the folding portion 10f, causing it to rise in a direction perpendicular to the front of the corrugated cardboard. As a result, the gap 20f in the recess 20d corresponding to the protrusion 20b is enlarged. On the other hand, the upper protrusion 20c in the figure remains parallel to the front of the corrugated cardboard without being bent. As a result, half of the gaps in the corrugated cardboard created by the multiple holes 20 arranged parallel to the dashed line of the folding portion 10f are not visible from the front of the refrigerator due to the unbent upper protrusion 20c of the corrugated cardboard in the figure. Also, half of the gaps in the corrugated cardboard located on the side of the refrigerator door are not visible from the side of the refrigerator due to the lower protrusion 20b of the corrugated cardboard in the figure, which rises in a direction perpendicular to the front of the corrugated cardboard.

[0035] Figure 3 is a perspective view showing a partially enlarged view of the protective device 10 from Figure 1 in a folded state.

[0036] In Figure 3, both the front portion 10a and the side portion 10b of the protective device 10 are shown. Of the portions in which the holes 20 are provided, the protrusion 20c on the front portion 10a covers approximately half of the holes 20 located on the front of the refrigerator door, and the protrusion 20b on the side portion 10b covers approximately half of the holes 20 located on the side of the refrigerator door.

[0037] In summary, with the folded portion folded and the protective device 10 attached to the object to be protected, one of the first and second protrusions is parallel to the front surface of the corrugated cardboard sheet, and the other is parallel to the side surface of the corrugated cardboard sheet. Here, the term "parallel" includes not only mathematically perfect parallelism, but also a state in which the bending force has almost no effect and the protrusions are substantially parallel.

[0038] Therefore, according to this embodiment, approximately half of the left and right edges (ridges) of the refrigerator door corresponding to the hole 20 can be covered with cardboard, thereby avoiding direct contact with surrounding objects. This helps to suppress damage to the refrigerator door.

[0039] Figure 4 is a perspective view showing the protective device of this embodiment attached to a refrigerator.

[0040] In this figure, the refrigerator 50 has a drawer door 51 or the like on its front side. The protective device 10 is installed in a folded state so as to cover the rotating door (e.g., a French door) of the refrigerator compartment located at the top of the refrigerator 50. The front part 10a of the protective device 10 covers the front part of the French door of the refrigerator compartment, and the side part 10b of the protective device 10 covers the side part of the French door of the refrigerator compartment. The holes 20 are located on the left and right edges of the French door of the refrigerator compartment. Therefore, approximately half of the left and right edges of the French door of the refrigerator compartment are covered by the protrusions of the cardboard so as not to be visible from the front or side.

[0041] The side portion 10b of the protective device 10 is fixed to the side of the refrigerator 50 with adhesive tape or the like.

[0042] Figure 5 is a perspective view showing the protective device of this embodiment attached to a refrigerator.

[0043] In this figure, the entire refrigerator 50 is covered with stretch film 60, and then the protective device 10 is attached. Therefore, the side portion 10b of the protective device 10 is fixed to the stretch film 60 with adhesive tape or the like. The stretch film 60 is made of polyethylene resin (PE), polypropylene resin (PP), polyethylene terephthalate resin (PET), nylon resin, etc.

[0044] By covering the entire refrigerator 50 with stretch film 60 in this way, it is possible to prevent cardboard from directly contacting the French doors of the refrigerator compartment and causing scratches on the surface of the French doors due to friction, and also to prevent surrounding objects from directly contacting parts other than the French doors.

[0045] Figure 6 is an exploded perspective view showing the refrigerator and outer packaging with the protective equipment of this embodiment attached.

[0046] This figure shows the refrigerator 50 in the state shown in Figure 4, along with the outer packaging 70, lid 71, and protective member 72 covering it. The outer packaging 70 and lid 71 are made of corrugated cardboard. The protective member 72 is made of expanded polystyrene. The protective member 72 is installed to protect the left and right edges of the top surface of the refrigerator 50.

[0047] Figure 7 is an exploded perspective view showing the refrigerator and outer packaging with the protective equipment of this embodiment attached.

[0048] This figure shows the refrigerator 50 in the state shown in Figure 5, along with the outer packaging 70, lid 71, and protective member 72 that cover it. The outer packaging 70, lid 71, and protective member 72 are the same as those in Figure 6. [Examples]

[0049] In this embodiment, only the differences from Embodiment 1 will be described.

[0050] Figure 8 is a plan view showing the protective device of Example 2.

[0051] In this figure, hole 80 is provided instead of hole 20 in Figure 1.

[0052] The hole 80 has a shape in which, when the flat surface of the corrugated cardboard is viewed in a direction perpendicular to the flat surface, the elliptical arc-shaped recesses and protrusions of the corrugated cardboard forming the perimeter of the hole 80 are connected adjacent to each other. In the same hole 80, the recesses and protrusions provided on the left and right sides in the figure are arranged to interlock with a gap between them. This forms a continuous hole 80. Note that the above-mentioned elliptical arc shape includes circular arc shapes. Furthermore, the above-mentioned "elliptical arc-shaped recesses and protrusions of the corrugated cardboard" can be rephrased as "recesses and protrusions of corrugated cardboard that are elliptical arc-shaped."

[0053] In this embodiment as well, the same effects as in Example 1 can be obtained. [Examples]

[0054] In this embodiment, only the differences from Embodiment 1 will be described.

[0055] Figure 9 is a plan view showing the protective device of Example 3.

[0056] In this figure, hole 90 is provided instead of hole 20 in Figure 1.

[0057] The hole 90 has a shape in which triangular recesses and protrusions of the corrugated cardboard that form the perimeter of the hole 90 are connected adjacent to each other when the flat surface of the corrugated cardboard is viewed in a direction perpendicular to the flat surface.

[0058] Here, triangular recesses are formed around the perimeter of hole 90 in the upper left and lower right sections of the figure. The triangular recess in the upper left section of the figure is formed by a broken line consisting of a first side, which is a hypotenuse extending to the left from the top of the figure, and a second side connected to the left end of the first side. The term "triangular" is used because, assuming a third side not shown in the figure in addition to the first and second sides, the closed figure formed by these three sides is triangular.

[0059] Similarly, triangular protrusions are formed around the perimeter of the hole 90 in the lower left and upper right parts of the figure. The triangular protrusions are formed by a broken line composed of the second side and a third side connected to the right end of the second side in the figure.

[0060] In the same hole 90, the recesses and protrusions provided on the left and right sides in the figure are arranged to interlock with a gap between them. This forms a continuous hole 90. The above-mentioned "triangular recesses and protrusions in corrugated cardboard" can be rephrased as "recesses and protrusions of corrugated cardboard that are triangular in shape." The above-mentioned recesses and protrusions may also have a polygonal shape with five or more sides.

[0061] In this embodiment as well, the same effects as in Example 1 can be obtained.

[0062] As illustrated in Examples 1 to 3, by providing the protective device with holes having recesses and protrusions, the exposed portion of the refrigerator, which is the object to be protected, can be halved. In this case, the shapes of the recesses and protrusions are not limited to these examples, but can be any shape that provides a similar effect.

[0063] (Comparative example) Figure 10 is a plan view showing a comparative example of protective equipment.

[0064] Unlike Examples 1-3, this figure provides a rectangular hole 100 without recesses or protrusions. In this case, when the protective device 10 is folded, there are no protrusions in the cardboard covering the hole 100, so the parts of the left and right edges of the French door of the refrigerator compartment that correspond to the hole 100 are exposed and not covered by the cardboard. The exposed area is approximately twice that of Examples 1-3. Therefore, the probability of the French door of the refrigerator compartment coming into contact with surrounding objects is approximately twice that of Examples 1-3.

[0065] Therefore, in this comparative example, there is a higher possibility that the refrigerator door will be damaged by direct contact with surrounding objects compared to Examples 1-3. [Examples]

[0066] Figure 11 is a side view showing the protective device of Example 4.

[0067] The protective device 110 shown in this figure has a two-layer structure formed by laminating a corrugated cardboard sheet 111 and a resin film 112. In this case, the resin film 112 is in direct contact with the French door of the refrigerator compartment. The corrugated cardboard sheet 111 is exposed facing the front of the refrigerator. The resin film 112 is made of polyethylene resin (PE), polypropylene resin (PP), polyethylene terephthalate resin (PET), nylon resin, etc.

[0068] Furthermore, the resin film 112 may have holes in positions corresponding to the holes in the corrugated cardboard sheet 111, but it is preferable that it does not have holes. In other words, it is preferable that the holes in the corrugated cardboard sheet 111 are covered by the resin film 112.

[0069] This configuration prevents the cardboard from directly contacting the French doors of the refrigerator compartment and causing scratches on the surface of the French doors due to friction. [Examples]

[0070] Figure 12 is a plan view showing the protective device of Example 5.

[0071] As shown in this figure, it is desirable to provide a clear indication 120 on the front of the protective device 10 (cardboard sheet) that the protective device 10 is a necessary component during the delivery and installation of the refrigerator (until the installation is complete) and cannot be removed. The indication 120 is made by printing on the cardboard sheet. This prevents the protective device 10 from being removed before the delivery and installation of the refrigerator. [Explanation of Symbols]

[0072] 10, 110: Protective equipment, 10a: Front part, 10b: Side part, 10f: Folded part, 20, 80, 90, 100: Hole, 30: Notch, 50: Refrigerator, 51: Drawer door, 60: Stretch film, 70: Outer packaging, 71: Lid, 72: Protective material, 111: Cardboard sheet material, 112: Resin film, 120: Marking.

Claims

1. A protective device that protects the main body of an object to be protected by covering at least a part of the main body of the object to be protected which has a ridge, Includes corrugated cardboard sheet material having holes, The holes are positioned to overlap the folded portion of the corrugated cardboard sheet, The bent portion is provided so as to overlap the edge portion of the main body of the object to be protected. The hole has a shape such that, when the flat portion of the corrugated cardboard is viewed in a direction perpendicular to the flat portion, the first recess and the first protrusion of the corrugated cardboard forming the perimeter of the hole are connected adjacent to each other, and the second protrusion and the second recess of the corrugated cardboard forming the perimeter of the hole are connected adjacent to each other. The first recess and the second protrusion are arranged to interlock with a gap that forms part of the hole. A protective device in which the second recess and the first protrusion are arranged to interlock with a gap that forms part of the hole.

2. It further contains a resin film, The protective device according to claim 1, having a two-layer structure in which the corrugated cardboard material and the resin film are bonded together.

3. The protective device according to claim 2, wherein the resin film is disposed between the main body of the object to be protected and the corrugated cardboard material.

4. The protective device according to claim 1, wherein the front surface of the corrugated cardboard material is provided with a marking indicating that the protective device is a necessary component until the installation of the object to be protected is completed.

5. The protective device according to claim 1, wherein, when the bent portion is bent and the protective device is attached to the main body of the object to be protected, one of the first protrusion and the second protrusion is parallel to the front surface of the corrugated cardboard material, and the other is parallel to the side surface of the corrugated cardboard material.

6. The protective device according to claim 1, wherein the first recess, the first protrusion, the second protrusion, and the second recess have a triangular shape, a quadrilateral shape, a polygonal shape with pentagons or more, or an elliptical arc shape.

7. A body of an object to be protected having a first surface and a second surface that are oriented differently from each other and adjacent to each other, and a ridge between the first surface and the second surface, The protective device comprises a first protective surface facing the first surface and a second protective surface facing the second surface, The aforementioned protective equipment is The method protects the object to be protected by covering at least a part of the object itself. Includes corrugated cardboard sheet material having holes, The holes are positioned to overlap the folded portion of the corrugated cardboard sheet, The bent portion is provided so as to overlap the edge portion of the main body of the object to be protected. The hole has a shape such that, when the flat portion of the corrugated cardboard is viewed in a direction perpendicular to the flat portion, the first recess and the first protrusion of the corrugated cardboard forming the perimeter of the hole are connected adjacent to each other, and the second protrusion and the second recess of the corrugated cardboard forming the perimeter of the hole are connected adjacent to each other. The first recess and the second protrusion are arranged to interlock with a gap that forms part of the hole. The object to be protected is such that the second recess and the first protrusion are arranged to interlock with a gap that forms part of the hole.

Images