Patent Application
20110226846
The present invention relates to a packing material of a product such as electric appliances and particularly to a packing box applied to an upper part or a lower part of the product.
A packing device composed of an upper corrugated fiberboard which covers the upper part of a product such as electric appliances, a lower corrugated fiberboard placed under the product, and columns brought into contact with sides of the product and arranged between the upper and lower corrugated fiberboards, and fastening those corrugated fiberboards with a band so as to fix them is known (Patent Document 1, for example).
Also, in a box body formed by punching a single corrugated fiberboard sheet, a corrugated fiberboard box for packing in which corner columns are disposed at four corners of the box by tucking in extension parts of both ends of a pair of side plates opposing each other with a bottom plate between them is also known (Patent Document 2, for example).
However, in the packing device in which the columns brought into contact with the sides of the product are inserted between the upper corrugated fiberboard and the lower corrugated fiberboard, the number of components is increased by the columns, assembling requires time, and there are problems in cost and workability.
Also, the corrugated fiberboard box with the corner columns being disposed at the four corners of the box is intended to contain a product within the box, and in addition that the shape becomes large, it requires more work to put/take the product in/out of the box, and there is also a problem in cost and workability.
The present invention was made in order to solve the above problems and has an object to provide a packing box that can prevent collapsing or damage on the product during storage in a warehouse or physical distribution and transportation and moreover, does not take labor when being mounted on the product and has good workability.
A packing box of the present invention has a rectangular bottom plate and a plurality of side plates erected from the periphery of the bottom plate and surrounding the bottom plate, in which at four corners in corner parts formed by the plurality of side plates, frame columns, each erected from the bottom plate side and extending to the midway to a distal end of the side plate, are formed and joined to the side plates, and the bottom plate, the side plates, and the frame columns are formed by one corrugated fiberboard sheet.
A manufacturing method of a packing box of the present invention is a method of punching one corrugated fiberboard sheet and forming a box board having a rectangular bottom plate, four side plates extending from individual sides of the bottom plate, and extended parts extending from both ends of each two-opposing side plate on the bottom plate side out of the four side plates and each having a width W2 smaller than a width W1 of the side plates, forming four frame columns by tucking each of the extended parts inward, forming a box body by folding each of the side plates, and arranging the four frame columns at four corners of the box body and joining them to the side plates.
In the packing box of the present invention, since the frame columns, each erected from the bottom plate side and extending to the midway of the distal end of the side plate, are formed at the four corners of the box and joined to the side plates, by arranging the frame columns in contact with an upper face or a lower face of the product, collapsing or damage of the product can be reduced. This is because the compression strength (or buckling strength) of the packing box is improved by the frame columns formed at the four corners of the box. Also, since the packing box has an open face opposing the bottom plate, it can be easily arranged over or below the product. Moreover, since the side plates are in a form protruding long from the frame columns, the protruding portions of the side plates cover the side end portions, and damages on the product can be reduced when the product is arranged side by side, and contribution is made to reduction of displacement of the packing box.
In the manufacturing method of the packing box of the present invention, only with a work of folding a punched corrugated fiberboard sheet, the box body having the frame columns with the height lower than the height of the side plates and excellent compression strength can be formed. Also, since the frame columns are joined to the side plates of the box body, the compression strength of the packing box is further improved.
Embodiments of the present invention will be described below while referring to the attached drawings.
The packing box of Embodiment 1 is formed by folding a single corrugated fiberboard sheet.
From the respective both ends of the pair of side plates 2, extended parts 4 to be frame columns 14 are extended, respectively. The extended parts 4 extend from the both ends of the side plates 2 on the bottom plate side, and a width W2 of the extended part 4 is smaller than the with W1 of the side plate 1. That is, an outer edge 9 of the side plate 2 is formed in a mode protruding from an outer edge 8 of the extended part 4. Also, in boundary parts between the side plate 2 and the extended part 4, folding lines 5 are formed, and in the extended parts 4, a plurality of folding lines 6 in parallel with the folding lines 5 are further formed.
Moreover, the board is configured that holes 10 are formed in the both end portions of the side plate 2, holes 11 in the both end portions of the extended parts 4, and holes 12 in the both end portions of the side plate 3. When the box board is assembled into a box body, these holes form through holes such that the holes 10 and the holes 11 as well as the holes 11 and holes 12 form through holes, respectively.
Subsequently, an example of a procedure to assemble the box board in
Subsequently, each time column 14 is arranged at the four corners of the box body such that the outer two faces of each frame column 14 formed from the extended part 4 are brought into contact with inner faces of the adjacent side plates 2 and 3 folded and constituting the corner parts of the box body.
Then, the holes 10 disposed in the side plates 2 and the holes 11 disposed in the extended parts 4 are overlapped so as to form through holes. Also, the holes 12 disposed in the side plates 3 and the holes 11 disposed in the extended parts 4 are overlapped so as to form through holes. Then, joining members 16 are inserted into the through holes, and the side plates 2 and the frame columns 14 as well as the side plates 3 and the frame columns 14 are joined together and fixed so that the side plates 2 and 3 are integrated with the frame columns 14. The joining member 16 may be a fastening tool formed from resin or metal such as a bolt and a nut or rivet. As a result, the packing box 20 according to Embodiment 1 is completed.
Subsequently, a use example of the packing box 20 will be described.
Also, as described above, the width W2 of the extended part 4 is formed smaller than the width W1 of the side plate 2. As a result, the frame column 14 formed by tucking the extended part 4 inward stands up from the bottom plate 1 side and extended to the middle from the bottom plate to the distal end portion of the side plate 2. That is, the distal end portion of the side plate 2 (hereinafter referred to as a side plate distal end portion 17) constitutes, as shown in
If displacement of the products 30 with the packing boxes 20 stacked in plural stages are to be corrected, a force by a human being or a forklift is applied in the lateral direction to the pallet 25 or the like arranged on the bottom part of the boxes stacked above. At this time, the side plate distal end portion 17 of the packing box 20 arranged on the top face 31 of the product 30 arranged in the lower stage is engaged with a side face 32 of the corresponding product 30. By means of this engagement, displacement of the packing box 20 located in the lower stage with respect to the corresponding product 30 is prevented. Also, since direct contact between the side faces of the products 30 and 35 arranged side by side can be avoided by this side plate distal end portion 17, the product side faces 32 and 37 can be protected.
The frame columns 14 and the side plates 2 and 3 can be joined together and integrated by hitting staples 18 made of metal or the like into the side plates 2 and 3 and the frame columns 14 as shown in
The effects of the packing box 20 described in each of Embodiments can be summarized as follows.
(1) Only with a work of folding a single punched corrugated fiberboard sheet, a box body for the packing box 20 having the frame columns 14 lower than the peripheral side plates 2 and 3 at the four corners can be formed.
(2) Since the frame columns 14 are joined to the side plates 2 and 3 of the box body, the compression strength of the packing box is increased, protection, safety and durability of the product are greatly improved, and more products can be stacked.
(3) Since one face of the packing box 20 is open, it can be easily arranged on the upper part or the lower part of the product.
(4) Since the side plate distal end portions 17 protruding from the frame columns 14 of the side plates 2 and 3 cover the side faces of the product, prevention of displacement of the packing box 20 or reduction of damage on the products placed side by side can be also realized.
(5) Since the packing box 20 is made from a corrugated fiberboard sheet, if the life as the packing box ends, it can be reused or recycled for other applications.
The peeking box according to the present invention can be used for packing of various products including electric products.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/JP2009/050333 | 1/14/2009 | WO | 00 | 5/19/2011 |
