JP7204364B2 - package - Google Patents

Description

The present invention relates to a package for packing a sheet feeding device or the like mounted on an image forming apparatus.

2. Description of the Related Art A product such as a sheet feeding device mounted on an image forming apparatus is packed in a package before being shipped from a factory in order to prevent damage due to vibration or impact during transportation. A cushioning material is provided in the package.

FIG. 7 is an exploded perspective view of the package described in Patent Document 1. FIG. As shown in FIG. 7, the package 200 is composed of a cylindrical box-shaped packaging box 103 (cylindrical body) with an open bottom, a base member 102, and a cushioning material 105. to pack. These members are integrated by engaging the joint member 106 with the engaging hole 102 a of the base member 102 and the engaging hole 103 b of the packaging box 103 .

In addition, the side surface of the packaging box 103 is provided with an engaging piece 103a that can be bent inward. The engaging piece 103a is bent to catch and engage with a groove 105a formed in the cushioning material 105 . With such a configuration, the packaging box 103 holds the cushioning material 105 by the engaging pieces 103a, and the cushioning material 105 can be removed together with the packaging box 103 when unpacking.

JP 2010-89836 A

However, in the configuration described in Patent Document 1, it is necessary to repeatedly bend and stretch the engaging piece 103a of the packaging box 103 in order to reuse the packing material. In this case, the engagement piece 103a of the packaging box 103 may be fatigued and damaged.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of such circumstances, and it is an object of the present invention to provide a package that can be easily reused while simultaneously unpacking the cylindrical body and the cushioning material.

A representative configuration of the package according to the present invention for achieving the above object is a sheet feeding device that is mounted on an image forming device that forms an image on a sheet and feeds a sheet for image formation, comprising: A packaging body for packaging a sheet feeding device having a substantially square top surface and a bottom surface area larger than the top surface area, comprising: a polyethylene or polypropylene packaging bag for packaging the sheet feeding device; and the packaging bag. first cushioning materials respectively attached to two adjacent corners of the upper surface of the sheet feeding device in a state of being wrapped in the sheet feeding device, the first cushioning materials each having a first engaging portion; and the packaging bag Two adjacent corners of the upper surface of the sheet feeding device in a state of being wrapped in a sheet feeding device, and a second cushioning material attached to each corner different from the corner to which the first cushioning material is attached. a second cushioning material each having a second engaging portion; and a connecting member that connects the first cushioning material and the second cushioning material, the connecting member being bent to engage with the first engaging portion. and a second bent portion that is bent to engage with the second engaging portion and faces the first bent portion via the sheet feeding device in the bent state. a connecting member having a tubular body that accommodates the sheet feeding device in a mounted state, wherein the first cushioning material and the second cushioning material are composed of elastic force of the connecting member, the first cushioning material, and the second cushioning material. Due to the tension of the packaging bag generated by the mounting of the cushioning material and the third cushioning material, the first cushioning material is pressed against the inner surface of the tubular body, and the first cushioning material is in a state before being accommodated in the tubular body. The distance between the surface of the material in contact with the inner surface of the tubular body and the surface of the second cushioning material in contact with the inner surface of the tubular body is the distance between the contact surface of the tubular body with the first cushioning material. It is characterized by being wider than the interval between the surface and the contact surface of the second cushioning material .

ADVANTAGE OF THE INVENTION According to this invention, it is a package. WHEREIN: While unpacking a cylindrical body and a cushioning material at the same time, it can be made easy to reuse.

It is an exploded perspective view of a package. It is a perspective view of an upper cushioning material. It is a perspective view of the cushioning material of the upper cushioning material. 3 is a cross-sectional view of a package in which the sheet feeding device is packaged; FIG. It is a perspective view of an upper cushioning material. It is a perspective view of the cushioning material of the upper cushioning material. FIG. 10 is an exploded perspective view of a conventional package;

(First embodiment)
<Package>
Hereinafter, first, the overall configuration of the package according to the first embodiment of the present invention will be described with reference to the drawings. It should be noted that the dimensions, materials, shapes, relative positions, etc. of the described components are not intended to limit the scope of the present invention only to them, unless otherwise specified.

FIG. 1 is an exploded perspective view of the package 50. FIG. As shown in FIG. 1, the package 50 is composed of a packaging box 42, an upper cushioning material 30, a packaging bag 41, a lower cushioning material 20, and a base member 11. As shown in FIG. In addition, the package 50 is packed with a sheet feeding device 100 that is attached to the lower portion of an image forming apparatus (not shown) that forms an image on a sheet.

The sheet feeding device 100 is an optional product attached externally to an image forming apparatus (not shown), and is a device that feeds sheets toward an image forming section that forms images on sheets. The sheet feeding device 100 includes a sheet cassette (not shown), a paper feeding roller (not shown), and a conveying roller (not shown). send towards.

The sheet feeding device 100 has a substantially rectangular upper surface 100a, and the bottom surface 100b has a larger area than the upper surface 100a in order to prevent overturning. It should be noted that the term “substantially rectangular shape” as used herein includes a rectangular shape with curved corners and a shape with chamfered corners. Casters 100c for moving the sheet feeding device 100 are attached to the bottom surface 100b.

The packaging box 42 (cylindrical body) is a cylindrical, box-shaped member with an open bottom. The packaging box 42 is made of packaging material such as corrugated board including plastic cardboard. The packaging box 42 is composed of a top plate 42b covering the upper surface 100a of the sheet feeding device 100 and four side plates 42a covering the side surfaces.

The base member 11 is made of a wooden pallet or the like so as to withstand the weight of the sheet feeding device 100 . Four side surfaces of the base member 11 are formed with fork insertion portions 11a, which are openings for inserting forks of a forklift.

The packaging bag 41 is a so-called plastic bag made of polyethylene or polypropylene. The packaging bag 41 wraps the sheet feeding device 100 to prevent the sheet feeding device 100 from being soiled or damaged.

The upper cushioning material 30 includes four cushioning materials 34 (34a to 34d) attached to four corners of the upper surface 100a of the sheet feeding device 100 in a state of being packaged in the packaging bag 41, and the four cushioning materials 34 It is composed of a connecting member 35 that connects the The cushioning material 34 is made of expanded polystyrene. The connecting member 35 is formed of a packaging material such as a corrugated board including plastic corrugated board. The upper cushioning material 30 suppresses the application of external force to the sheet feeding device 100 and prevents the sheet feeding device 100 from being displaced inside the package 50 .

The lower cushioning material 20 (third cushioning material) consists of two cushioning materials 21 (21a, 21b) attached to the bottom surface 100b of the sheet feeding apparatus 100 in a state of being packaged in the packaging bag 41, and two cushioning materials It consists of an intermediate member 23 arranged between 21 . The two cushioning materials 21 are made of expanded polystyrene. The intermediate member 23 is formed of a packaging material such as a corrugated board including plastic corrugated board. The lower cushioning material 20 suppresses the application of external force to the sheet feeding device 100 and prevents the sheet feeding device 100 from being displaced inside the package 50 . By bending a part of the intermediate member 23, the interval between the cushioning members 21a and 21b can be defined.

<Upper cushioning material>
Next, the configuration of the upper cushioning material 30 will be described in detail.

FIG. 2 is a perspective view of the upper cushioning material 30. FIG. 3 is a perspective view of the cushioning material 34 of the upper cushioning material 30. FIG.

As shown in FIGS. 2 and 3, the cushioning materials 34a to 34d are formed with slits 34x and chamfered portions 34z. The connecting member 35 includes a first bent portion 35a (first bent portion) having one end bent downward, and a second bent portion 35b (second bent portion) having the other end bent downward. ) is formed. The first bent portion 35 a and the second bent portion 35 b face each other with the sheet feeding device 100 interposed therebetween.

The first bent portion 35a is a slit 34x (first engaging portion) formed in cushioning materials 34a and 34c (first cushioning material) attached to two adjacent corners of the upper surface 100a of the sheet feeding device 100. fit (engage). The second bent portion 35b is formed by a slit 34x (second engaging portion ). The four cushioning members 34 are thus connected. Further, by adjusting the bending portion of the connecting member 35, the spacing between the cushioning materials 34a, 34c and the cushioning materials 34b, 34d can be defined.

That is, the connecting member 35 has a first bent portion 35a bent to engage with the slits 34x formed in the cushioning materials 34a and 34c, and a first bent portion 35a bent to engage with the slits 34x formed in the cushioning materials 34b and 34d. It has a bent second bent portion 35b. The first bent portion 35a and the second bent portion 35b face each other with the sheet feeding device 100 interposed therebetween in a bent state. Also, the cushioning materials 34b and 34d are attached to corners different from the corners to which the cushioning materials 34a and 34c are attached.

<Packing method>
Next, a method for packing the package 50 will be described.

When packing with the package 50, first, the two cushioning materials 21 of the lower cushioning material 20 are placed on the base member 11 so as to face each other. Next, the intermediate member 23 is placed between the two cushioning materials 21 .

Next, the sheet feeding device 100 is packaged with the packaging bag 41 . After that, the cushioning materials 21 a and 21 b are attached to the bottom surface 100 b of the sheet feeding device 100 in the wrapped state, and the sheet feeding device 100 is placed on the lower cushioning member 20 .

Next, the four cushioning members 34 of the upper cushioning member 30 are mounted so as to cover the four corners of the upper surface 100a of the sheet feeding device 100, respectively. After that, the connecting member 35 is bent according to the intervals of the four cushioning materials 34 to form the first bent portion 35a and the second bent portion 35b. Then, the first bent portion 35 a and the second bent portion 35 b are fitted into the slits 34 x of the cushioning material 34 .

Next, the opened portion of the packaging box 42 is directed downward, and the packaging box 42 is covered from above. That is, the packaging box 42 accommodates the sheet feeding device 100 wrapped in the packaging bag 41 and having the lower cushioning material 20 and the upper cushioning material 30 mounted thereon. Here, since the cushioning material 34 has a chamfered portion 34z, the packaging box 42 can be easily put on the cushioning material 34 from above. Thus, the packing work is completed.

<Force acting on the package>
Next, forces acting on the package 50 in the packed state will be described.

FIG. 4 is a cross-sectional view of the package 50 in which the sheet feeding device 100 is packaged. As shown in FIG. 4, when the sheet feeding device 100 is packed, the four cushioning materials 34 attached to the sheet feeding device 100 are placed on the inner surface of the top plate 42b and the inner surface of the side plate 42a of the packaging box 42. The dimensions are set so that they are in contact with each other.

Here, in the connecting member 35, an elastic force acts on the first bent portion 35a and the second bent portion 35b to open the bent portions.

Also, as shown in FIG. 1, the distance between the contact surface of the cushioning members 34a and 34c with the side plate 42a and the contact surface of the cushioning members 34b and 34d with the side plate 42a is defined as D2. D1 is the interval between the inner surfaces of the opposing side plates 42a of the packaging box 42, and the interval between the contact surfaces of the packaging box 42 with the cushioning materials 34a and 34c and the contact surfaces with the cushioning materials 34b and 34d. At this time, in the case of D1<D2, when the packaging box 42 is put on, the portion between the first bent portion 35a and the second bent portion 35b of the connecting member 35 bends in the vertical direction, and the bent portion returns to its original state. An elastic force acts to try.

The elastic force of these connecting members 35 acts as a force that pushes the inner surface of the side plate 42a of the packaging box 42 outward through the cushioning material 34 . By setting D1<D2, it becomes difficult to cover the packaging box 42, but this problem can be solved by enlarging the chamfered portion 34z of the cushioning material 34. FIG.

As the upper cushioning material 30 and the lower cushioning material 20 are attached to the sheet feeding device 100, the portion 41a between the portion of the packaging bag 41 with which the lower cushioning material 20 contacts and the portion with which the upper cushioning material 30 contacts has a , tension is generated by being pulled by both. This tension acts as a force that presses the inner surface of the side plate 42a of the packaging box 42 through the cushioning material 34 to the outside.

That is, the elastic force of the connecting member 35 and the tension of the packaging bag 41 described above act as a force F1 (FIG. 4) that presses the cushioning material 34 against the packaging box 42 . That is, the cushioning material 34 is pressed against the inner surface of the side plate 42a of the packaging box 42 by this force F1. On the other hand, since the cushioning material 34 is attached to the sheet feeding apparatus 100, the force F2 (FIG. 4) that presses the cushioning material 34 against the sheet feeding apparatus 100 through the packaging bag 41 acts to some extent. However, the force F2 is smaller than the force F1.

Therefore, when comparing the maximum static frictional force between the cushioning material 34 and the packaging box 42: fmax1=μ1×F1 and the maximum static frictional force between the cushioning material 34 and the packaging bag 41: fmax2=μ2×F2, fmax1>fmax2. Here, μ1 is the coefficient of friction between the cushioning material 34 and the packaging box 42 . μ2 is the coefficient of friction between the cushioning material 34 and the packaging bag 41 .

By pressing the cushioning material 34 against the packaging box 42 in this manner, the frictional force between the cushioning material 34 and the packaging box 42 increases, and the upper cushioning material 30 is held by the packaging box 42 . Therefore, when the packaging box 42 is removed from the sheet feeding device 100 when the package 50 is unpacked, the upper cushioning material 30 can be removed together with the packaging box 42 .

Corrugated cardboard generally has a higher coefficient of friction than plastic bags. The measured value of the coefficient of friction between the cushioning material 34 and the packaging box 42 used in this embodiment is μ1=0.31, and the measured value of the coefficient of friction between the cushioning material 34 and the packaging bag 41 is μ2=0. .21. However, when using a packaging box 42 made of plastic cardboard, the coefficient of friction between the cushioning material 34 and the packaging box 42 is the same as that between the cushioning material 34 and the packaging bag 41 because the main material of the plastic cardboard is polypropylene can be equivalent to the coefficient of friction between Even in this case, fmax1, which is the maximum static frictional force between the cushioning material 34 and the packaging box 42, is the maximum static frictional force between the cushioning material 34 and the packaging bag 41 in order to satisfy the relationship of F1>F2 described above. fmax2 (fmax1>fmax2). Therefore, when the packaging box 42 is removed, the upper cushioning material 30 is also removed, leaving the packaging bag 41 as it is.

In addition, since the cushioning material 34 is held by the packaging box 42 by the above-described frictional force, when the upper cushioning material 30 is removed from the packaging box 42 or when the packaging box 42 is re-covered, the packaging box 42 and the upper part of the packaging box 42 do not move. These operations can be performed without bending the cushioning material 30 . Therefore, the packaging box 42 and the upper cushioning material 30 are less likely to be fatigued, and can be reused more easily than in the conventional configuration. Thus, according to the configuration of the present embodiment, the packaging box 42 and the upper cushioning material 30 can be unpacked at the same time, and the package 50 can be easily reused.

Regarding the direction in which the packaging box 42 is removed, the contact distance between the cushioning material 34 and the inner surface of the side plate 42a of the packaging box 42 is L1 (FIG. 4). Let the contact distance with be L2 (FIG. 4). At this time, it is preferable that L1>L2. In this embodiment, L1=110 mm and L2=60 mm. As a result, even when the force F1 and the force F2 described above are substantially the same and the relationship between the coefficients of friction is also substantially the same, the contact distances L1 and L2 decrease at the same pace when the packaging box 42 is removed, and eventually the shock absorber becomes damped. The material 34 is brought into contact with the packaging box 42 . Therefore, it becomes easier to hold the cushioning material 34 in the packaging box 42 .

After the packaging box 42 is removed during unpacking, the sheet feeding device 100 in the packaging bag 41 is lifted and removed from the lower cushioning material 20 . After that, the packaging bag 41 is removed from the sheet feeding device 100 . This completes the unpacking. When collecting the package 50, the packaging bag 41 is put on the lower cushioning material 20, and the packaging box 42 with the upper cushioning material 30 held thereon is covered to recover the package 50.例文帳に追加

(Second embodiment)
Next, a second embodiment of the package according to the present invention will be described with reference to the drawings. The same drawings and the same reference numerals are given to the portions whose description overlaps with that of the first embodiment, and the description thereof is omitted.

5 and 6 are a perspective view of the upper cushioning material 30 and a perspective view of the cushioning material 34 of the upper cushioning material 30 according to this embodiment. As shown in FIGS. 5 and 6, in addition to the structure of the first embodiment, each of the cushioning members 34a to 34d is provided with a slit 34y cut in a direction perpendicular to the slit 34x. That is, slits 34x and slits 34y are formed in the four cushioning materials 34, respectively.

Also, the upper cushioning material 30 has a second connecting member 36 in addition to the configuration of the first embodiment. The second connecting member 36 is made of packaging material such as corrugated board including plastic corrugated board. The package 50 according to the present embodiment differs from the first embodiment only in the configuration of the upper cushioning material 30. Specifically, the slit 34y is formed and the second connecting member 36 is The only difference is that they are provided.

The second connecting member 36 has a third bent portion 36a (third bent portion) with one end bent downward, and a fourth bent portion 36b (fourth bent portion) with the other end bent downward. part) is formed. The third bent portion 36a and the fourth bent portion 36b face each other with the sheet feeding device 100 interposed therebetween.

The third bent portion 36a is a slit 34y (third engaging portion) formed in cushioning materials 34a and 34b (fourth cushioning material) attached to two adjacent corners of the upper surface 100a of the sheet feeding device 100. fit (engage). The fourth bent portion 36b is a slit 34y (fourth engaging portion) formed in cushioning materials 34c and 34d (fifth cushioning material) attached to two adjacent corners of the upper surface 100a of the sheet feeding device 100, respectively. ). The four cushioning members 34 are thus connected. Further, by adjusting the bending portion of the second connecting member 36, the spacing between the cushioning materials 34a, 34b and the cushioning materials 34c, 34d can be defined. Note that the connecting member 35 and the second connecting member 36 are arranged so as to overlap each other.

That is, the second connecting member 36 engages with the third bent portion 36a bent to engage with the slits 34y formed in the cushioning materials 34a and 34b and the slits 34y formed in the cushioning materials 34c and 34d. It has a fourth bent portion 36b that is bent in the following manner. The third bent portion 36a and the fourth bent portion 36b face each other with the sheet feeding apparatus 100 interposed therebetween in a bent state. Also, the cushioning materials 34c and 34d are attached to corners different from the corners to which the cushioning materials 34a and 34b are attached.

Here, the same elastic force as that acting on the connecting member 35 described in the first embodiment is acting on the second connecting member 36 . That is, the elastic force of the second connecting member 36 acts as a force that presses the cushioning material 34 against the inner surface of the side plate 42a of the packaging box 42, and this force pushes the cushioning material 34 against the inner surface of the side plate 42a of the packaging box 42. Apply pressure with a stronger force.

By providing the second connecting member 36 in addition to the connecting member 35 in this manner, the frictional force between the cushioning material 34 and the packaging box 42 is further increased. Therefore, the force with which the packaging box 42 holds the cushioning material 34 is increased, and the upper cushioning material 30 can be easily removed together with the packaging box 42 when the package 50 is unpacked.

In addition, in the first embodiment and the second embodiment, the sheet feeding device 100 is exemplified as an object to be packed in the package 50, but the present invention is not limited to this. That is, if a member having a substantially square top surface and a bottom surface area larger than that of the top surface is packed, the same effect as described above can be obtained even if another article is used as the object to be packed.

20... Lower cushioning material (third cushioning material)
34... Cushioning material (first cushioning material, second cushioning material, fourth cushioning material, fifth cushioning material)
34x... Slit (first engaging portion, second engaging portion)
34y Slit (third engaging portion, fourth engaging portion)
35... Connecting member 35a... First bent portion (first bent portion)
35b... Second bending portion (second bending portion)
36... Second connecting member (another connecting member)
36a... Third bending portion (third bending portion)
36b... Fourth bending portion (fourth bending portion)
41 ... Packaging bag 42 ... Packaging box (cylindrical body)
50 Package 100 Sheet feeding device

Claims (5)

A sheet feeding device mounted in an image forming apparatus for forming an image on a sheet and feeding a sheet for image formation, the sheet feeding device having a substantially rectangular top surface and a bottom surface area larger than the top surface area. In the package for packing the transport device,
a polyethylene or polypropylene packaging bag for packaging the sheet feeding device;
first cushioning materials attached to two adjacent corners of the upper surface of the sheet feeding device in a state of being packaged in the packaging bag, the first cushioning materials each having a first engaging portion;
Second shock absorbers attached to two adjacent corners of the upper surface of the sheet feeding device in a state of being wrapped in the packaging bag, different from the corners to which the first shock absorbers are attached. A second cushioning material, which is a material, each having a second engaging portion;
A connection member for connecting the first cushioning material and the second cushioning material, the first bending portion bent to engage with the first engaging portion, and the second engaging portion engaging with each other. a connecting member that is bent to mate and has a second bent portion facing the first bent portion through the sheet feeding device in the bent state;
a third cushioning material attached to the bottom surface of the sheet feeding device in a state of being packaged in the packaging bag;
a cylindrical body that accommodates the sheet feeding device with the first cushioning material, the second cushioning material, and the third cushioning material attached;
with
The first cushioning material and the second cushioning material are composed of the elastic force of the connecting member and the strength of the packaging bag generated as the first cushioning material, the second cushioning material, and the third cushioning material are attached. pressure contact with the inner surface of the cylindrical body by tension,
Between the contact surface of the first cushioning material with the inner surface of the cylindrical body and the contact surface of the second cushioning material with the inner surface of the cylindrical body before being housed in the cylindrical body is wider than the distance between the contact surface of the cylindrical body with the first cushioning material and the contact surface with the second cushioning material,
A package characterized by: 2. The package according to claim 1, wherein said first engaging portion and said second engaging portion are slits into which said first bent portion and said second bent portion are fitted. With respect to the removing direction of the tubular body, the contact distance between the first cushioning material and the inner surface of the tubular body is longer than the contact distance between the first cushioning material and the sheet feeding device through the packaging bag. 2. A contact distance between said second cushioning material and the inner surface of said cylindrical body is longer than a contact distance between said second cushioning material and said sheet feeding device via said packaging bag. Or the package as described in 2. Two adjacent corners of the upper surface of the sheet feeding device in a state of being packaged in the packaging bag, the combination being different from the combination of the corners to which the first cushioning material and the second cushioning material are attached. a fourth cushioning material attached to each of the four corners, the fourth cushioning material having a third engaging portion;
Fifth shock absorbers attached to two adjacent corners of the upper surface of the sheet feeding device in a state of being wrapped in the packaging bag, the corners being different from the corners to which the fourth shock absorbers are attached. A fifth cushioning material, which is a material, each having a fourth engaging portion;
Another connecting member that connects the fourth cushioning material and the fifth cushioning material, the third bending part bent to engage with the third engaging part, and the fourth engaging part a connecting member having a fourth bend that is bent to engage the sheet feeder and that, in the bent state, faces the third bend through the sheet feeding device;
further comprising
4. The fourth cushioning material and the fifth cushioning material are pressed against the inner surface of the cylindrical body by the elastic force of the connecting member and the tension of the packaging bag. The package described in . 5. The package according to claim 4 , wherein the third engaging portion and the fourth engaging portion are slits into which the third bent portion and the fourth bent portion are fitted.

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