JP5209450B2 - Packaging frame - Google Patents

Description

  The present invention relates to a packaging frame that cushions and fixes an article when packaging a fragile article.

  Conventionally, Patent Document 1 below describes a packaging frame as shown in FIG. This frame has a rectangular tube-shaped peripheral wall 51 slightly narrowed upward and a bottom wall 52 that closes the bottom of the frame, and has a bowl shape with the top surface opened.

  The peripheral wall 51 is formed by overlapping an inner plate 53 and an outer plate 54 sequentially provided on each side of the bottom wall 52 to form a double-structure side wall 55 and engaging adjacent side walls 55. The bottom wall 52 is held up.

  The folding piece 56 that connects the inner plates 53 of the adjacent side walls 55 is folded in two along a diagonal fold line 57 that bisects the corner on the bottom wall 52 side. The extended bent pieces 58 and 59 are sandwiched between the other side walls 55.

  In this assembled state, since the height of the outer plate 54 is larger than the height of the inner plate 53, the bottom wall 52 is held in a state of being lifted from the lower end of the peripheral wall 51, and has a shock-absorbing property against vibration and dropping. Improvement is achieved.

JP 2004-59146 A

  However, in the frame body as described above, for example, when packed tofu with a film stretched on the upper surface is stored and packed in an outer box, the flap of the outer box falls, the film is pressed, and the tofu There is a risk of collapse.

  Further, prior to shipping tofu, there is a problem in that it takes a lot of time to assemble the product at the time of shipment unless it is bent halfway and pasted with glue.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the protection of articles stored in a packaging frame and facilitate assembly.

  In order to solve the above problems, the present invention provides a rectangular frame-shaped peripheral wall and a bottom wall that closes the bottom of the packaging frame with the top surface open. A slant valley fold line that connects side plates that form each surface of the peripheral wall to the outer side of the corner beam piece, connects adjacent side plates through the folding piece, and bisects the corner on the top side to the folding piece The bottom wall is continuously connected to the opposite side plate via a bottom hanging piece formed by cutting between the square frame pieces, and the folded piece is folded in two along the oblique valley fold line. The side plate was bent downward, the bottom suspension piece was folded inward and downward, the boundary between the bottom suspension piece and the bottom wall was valley-folded, and the bottom wall was recessed from the peripheral wall.

  In order to improve buffering, the height from the lower end of the side plate to the portion where the bottom suspension piece is continuously provided is set to be higher than the height of the bottom suspension piece, and the bottom wall is lifted from the lower end of the peripheral wall; It was made to become.

  Further, in order to improve shape retention, a lock piece provided on the other side plate is pushed into a lock hole provided on one of the adjacent side plates, and these side plates are engaged with each other.

  Furthermore, in order to improve assemblability and secure an article storage space, the folding piece is provided with an extension portion connected to one side plate, and when the folding piece is folded, the folding piece is repelled by the extension portion with respect to one side plate. It was made to fold over the inner surface of the.

  In the packaging frame according to the present invention, since the corner bars are provided at the corners of the top surface, when packaging a fragile article such as tofu, the article is stored below the corner bars and the outer box is used. When packed, when a load is applied to the outer box from above, the flaps of the outer box are received by the square crosspieces, the flaps are prevented from falling, and the article is protected.

  Further, when the bottom wall is lifted, the article is supported in a suspended state, and the article is protected even if a large impact is applied due to dropping or the like.

  Furthermore, this frame can be easily assembled by simply bending the bottom wall so that the bottom wall is recessed, and the adjacent side plates are engaged by pushing the lock pieces into the lock holes. Can be shaped.

  In addition, when folding the folded piece, if the folded piece overlaps the inner surface of the other side plate due to the repulsion of the extension to one side plate, the folded piece will not protrude into the article storage space and must be folded manually. Since it is not necessary to fix the pieces, the assemblability is improved.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  The packaging frame according to the first embodiment is formed from a cardboard blank shown in FIG. In this blank, a corner beam piece 1 is provided at positions corresponding to the four corners of the top surface, and the corner beam piece 1 is a right-angled isosceles triangle having the same length of the two outer sides across the right angle. Side plates 2 forming each surface of the peripheral wall 11 are continuously provided in four directions on the outer side of the square frame piece 1, and a ruled line is provided at the boundary between the square frame piece 1 and the side plate 2 from the back side of the cardboard. It has been.

  Adjacent side plates 2 are connected to each other via a folding piece 3, and a ruled line is put on the boundary between the side plate 2 and the folding piece 3 from the back side of the cardboard, and a short cut is made to reduce bending resistance. Eyes are put.

  The folding piece 3 is provided with an oblique fold line 4 that bisects the corner on the top surface side, and an extension portion 5 is provided along one side plate 2. The oblique valley fold line 4 is a half cut line obtained by cutting the corrugated cardboard from the back side to the middle in the thickness direction in order to enable deep valley folds. The folded piece 3 is crushed in the thickness direction as a whole in order to suppress repulsion during assembly, as indicated by the hatched lines in the figure.

  A bottom wall 12 is connected to two sets of opposing side plates 2 via inverted trapezoidal bottom suspension pieces 6 formed by cutting between the corner beam pieces 1. A ruled line is inserted from the back side of the corrugated cardboard at the boundary between the side plate 2 and the bottom suspension piece 6, and the boundary between the bottom wall 12 and the bottom suspension piece 6 can be valley-folded. Long cut lines are made.

Here, as shown in the figure, the height h ₁ from the lower end of the side plate 2 during assembly of the frame to the portion where the bottom suspension piece 6 is connected is set to be larger than the height h ₂ of the bottom suspension piece 6. ing.

  Further, a rectangular lock hole 7 is provided from both end portions of one side plate 2 to the extension portion 5 of the folded piece 3, and the width of the base end is equal to the width of the lock hole 7 at both ends of the other side plate 2. A lock piece 8 having a wider width on the tip end side is provided. At the base end of the lock piece 8, a ruled line is formed from the back side of the cardboard.

  To assemble the blank as described above, as shown in FIG. 2, the folding piece 3 is folded while being folded along the oblique valley fold line 4, and the side plate 2 is folded downward from the corner beam piece 1, and the bottom suspension piece. 6 is bent inward and downward, the boundary between the bottom suspension piece 6 and the bottom wall 12 is valley-folded, and the bottom wall 12 is recessed from the peripheral wall 11 as the four side plates 2 stand up.

  At this time, the folding piece 3 overlaps with the inner surface of the other side plate 2 due to the repulsion of the extension 5 with respect to one side plate 2 of the adjacent side plates 2, so that the folding piece 3 protrudes into the article storage space. There is no need to fix the folding piece 3 manually.

  Thereafter, as shown in FIGS. 3 and 4, the lock piece 8 is pushed into the lock hole 7 in a state where the peripheral wall 11 is in the shape of a square cylinder. This pushing can be easily performed with one hand. As a result, the adjacent side plates 2 are engaged with each other, the assembled shape in a bowl shape is maintained, and the bottom wall 12 is lifted from the lower end of the peripheral wall 11.

  And when packaging the tofu enclosed in the pack P using the frame body assembled in this way, for example, as shown in FIG. 5, the pack P is stored below the square piece 1. Then, two frames are inserted side by side into the outer box 21 and the flap 22 of the outer box 21 is closed (the closed state of the flap is not shown).

  When packing is performed in this way, when a load is applied to the outer box 21 from above in the distribution process, the flap 22 of the outer box 21 is received by the square bar piece 1 and the flap 22 is prevented from falling. Tofu never breaks.

  Further, even if a large impact is applied due to a drop or the like, the pucking of the pack P is prevented by the square crosspiece 1, and the pack P is supported in a suspended state by the bottom wall 12 that is lifted from the lower end of the peripheral wall 11. The impact is alleviated and the tofu is protected.

  By the way, in this embodiment, although illustrated about the case where the rectangular parallelepiped pack P which enclosed the tofu was packaged, when storing an article whose plane shape is an octagon or a circle, when packing using this frame, The article can be protected from impact.

  In the first embodiment, two sets of opposing side plates 2 are cut to form the bottom suspension piece 6, and the bottom wall 12 is suspended from the four directions of the peripheral wall 11, but the first embodiment shown in FIG. As in the second embodiment, only the pair of opposing side plates 2 may be cut to form the bottom suspension piece 6 and the bottom wall 12 may be suspended from the two directions of the peripheral wall 11.

  In addition, among the two opposing side plates 2, lock holes 7 and extension portions 5 of the folding pieces 3 are provided on both sides of one set of side plates 2, and lock pieces 8 are provided on both sides of the other set of side plates 2. However, the lock hole 7 and the extension part 5 of the folding piece 3 may be provided on one side of each side plate 2 and the lock piece 8 may be provided on the other side so that the peripheral plates can be sequentially locked.

  Furthermore, although the surrounding wall 11 illustrated the thing of the square cylinder shape, also in what becomes a polygonal cylinder shape, such as a triangular cylinder shape and a hexagonal cylinder shape, the surrounding wall 11 becomes the protective property of articles | goods by setting it as the same structure. It can be excellent and easy to assemble.

The figure which shows the blank of the packaging frame which concerns on 1st Embodiment Perspective view showing the assembly process The perspective view which shows an assembly state same as the above. Longitudinal sectional view showing the assembly state The perspective view which shows the packing state by an outer box same as the above The perspective view which shows the assembly state of the packaging frame which concerns on 2nd Embodiment. The perspective view which shows the assembly state of the conventional packaging frame

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Square crosspiece 2 Side plate 3 Folding piece 4 Shaft fold line 5 Extension part 6 Bottom suspension piece 7 Lock hole 8 Lock piece 11 Perimeter wall 12 Bottom wall 21 Outer box 22 Flap

Claims (4)

  In a packaging frame having a rectangular tube-shaped peripheral wall (11) and a bottom wall (12) that closes the bottom thereof, the top surface is opened, and a square beam piece (1) is provided at the top surface corner, Side plates (2) that form each surface of the peripheral wall (11) are connected to the outer side of the square beam piece (1), and the adjacent side plates (2) are connected to each other via the folding pieces (3). Put the sloped valley fold line (4) that bisects the corner on the top side into 3), and the bottom hanging piece (6) formed by cutting between the corner beam pieces (1) in the opposite side plate (2) Through the bottom wall (12), folding the folding piece (3) while folding it in half along the oblique valley fold line (4), folding the side plate (2) downward from the corner beam piece (1), The bottom suspension piece (6) is bent inward and downward, the boundary between the bottom suspension piece (6) and the bottom wall (12) is valley-folded, and the bottom wall (12) is recessed from the peripheral wall (11) A packaging frame.   The packaging frame according to claim 1, wherein a height from a lower end of the side plate (2) to a portion where the bottom suspension piece (6) is connected is set to be larger than a height of the bottom suspension piece (6). A packaging frame, wherein the bottom wall (12) is lifted from the lower end of the peripheral wall (11).   The packaging frame according to claim 1 or 2, wherein, among the adjacent side plates (2), the lock holes (7) provided on one side plate and the lock pieces (8) provided on the other side plate (2). ), And the side plates (2) are engaged with each other.   In the packaging frame according to any one of claims 1 to 3, when the extension piece (5) connected to one side plate (2) is provided in the folding piece (3) and the folding piece (3) is folded, A packaging frame, wherein the folded piece (3) overlaps the inner surface of the other side plate (2) by repulsion of the extension (5) with respect to the one side plate (2).

Images