JPH0572730U - Paper pallet - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a paper pallet that can be assembled with little or no adhesives or stitches and that has the structural strength required for a pallet. A reinforcing member is provided at a bottom portion of the main body portion, and the reinforcing member includes a first hollow quadrangular prism member opened in a longitudinal direction of the bottom portion of the main body portion and a first hollow square pillar member opened in a vertical direction. 2 hollow quadrangular prism members, the first and second hollow quadrangular prism members are placed such that the vertical dimension is substantially equal and are alternately arranged on the bottom of the main body. A locking protrusion is formed at a predetermined position on the peripheral portion, and at least a part of the protrusion is engaged with a protrusion locking opening in the main body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a pallet used for transporting luggage, etc., and particularly to a paper pallet such as cardboard paper.

[0002]

[Prior Art]

 Various paper pallets have been proposed in the past due to their strength, light weight, and low price. The applicant of the present invention has also proposed (cardboard) paper pallet in, for example, Japanese Utility Model Laid-Open No. 3-56529.

[0003]

[Problems to be solved by the device]

 In response to the increasing awareness of environmental issues in recent years, the demand for paper reuse has increased significantly. The same applies to corrugated paper.

Here, in the case of a paper pallet, in order to provide the pallet with the necessary strength, an adhesive agent, a stitch, and other joining members are required at the joining points.

However, in consideration of the reuse of corrugated paper, it is desired that the adhesives and stitches are not present as much as possible, and the paper pallets are developed and handled in a stacked state. .. And this made reuse of paper pallets difficult.

The present invention has been proposed in order to satisfy the above-mentioned conflicting requirements at the same time, and it can be assembled without the need for adhesives or stitches, and it may be necessary as a pallet. The purpose is to provide a paper pallet with structural strength.

[0007]

A paper pallet of the present invention includes a main body and a reinforcing member arranged at the bottom of the main body, and the reinforcing member is opened in the longitudinal direction of the bottom of the main body. A first hollow quadrangular prism member and a second hollow quadrangular prism member opened in the vertical direction, wherein the first and second hollow quadrangular prism members have substantially the same vertical dimension and are alternately arranged on the bottom of the main body. They are placed so that they are arranged, and a locking projection is formed at a predetermined position on the peripheral portion of the main body, and at least a part of the projection is engaged with the projection locking opening in the main body. And is engaged with the opening of the second quadrangular prism member.

Here, the opening and the hollow inside of the first hollow quadrangular prism member act as insertion holes (through holes) into which the forks of the forklift are inserted. This paper pallet can be applied as a so-called "flat pallet". In this case, it is preferable to dispose two first hollow quadrangular prism members and three second hollow quadrangular prism members on the bottom surface of the main body.

Further, the paper pallet of the present invention includes a main body and a reinforcing member arranged at the bottom of the main body, and the reinforcing member has a U-shaped cross section extending in the longitudinal direction of the bottom of the main body. Members and hollow quadrangular members that are open in the vertical direction, and the U-shaped cross-section members and hollow quadrangular members are placed so that their vertical dimensions are substantially equal and they are arranged alternately on the bottom of the main body. A protrusion for locking is formed at a predetermined position on the peripheral portion of the main body, and the protrusion is engaged with a protrusion locking opening in the main body. A reinforcing member is provided in parallel with the plate-shaped member, and a locking projection formed at a predetermined position on the peripheral portion of the reinforcing member is engaged with a projection locking opening in the main body.

This paper pallet is used as a so-called “box pallet”. Here, it is preferable to provide a joint portion (joint margin) on the main body portion and to use an adhesive or stitches only for the joint portion. Then, it is preferable to dispose two U-shaped members in cross section and three hollow square column members on the bottom surface of the main body.

In implementing the present invention, the main body of the flat pallet, the first hollow quadrangular prism member, the second hollow quadrangular prism member, or the main body of the box pallet, the U-shaped cross-section member, the hollow quadrangular prism member. Is preferably manufactured by bending separate developed patterns and locking the protrusions with the locking openings.

When the paper pallet of the present invention is applied as a box pallet to store contents having casters, the casters are stored in a hollow quadrangular prism member that is open in the vertical direction to store contents. It is preferable to prevent movement within the box pallet and protect casters.

[0013]

[Action]

 According to the paper pallet of the present invention configured as described above, the bending process or the protrusion is performed with little or no joining members (adhesives, stitches, etc.) made of materials other than paper (corrugated paper). The paper pallet can be assembled by locking at the locking opening. Here, at the bottom of the main body where external loads and / or loads due to the weight of the contents act, in the case of a flat pallet, there are the first and second hollow quadrangular prism members, and in the case of a box pallet, the cross section is The U-shaped member and the hollow square pole member are subjected to the above load. Therefore, the structural strength of the pallet is sufficiently guaranteed.

Since little (or no) adhesives, stitches, etc. are used, when the paper pallet of the present invention is unfolded and the piled up and reused, various handlings and chemicals are used. It does not adversely affect the processing and improves the efficiency of reusing paper such as corrugated cardboard.

[0015]

【Example】

 Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 to 10 show a first embodiment of the present invention and show a flat corrugated board pallet according to the present invention.

In FIG. 1, the first hollow quadrangular prismatic members 14, 14 are placed on the bottom portion (see reference numeral 12 in FIG. 2) of the main body 10 in the expanded state, and the first members 14 ... Three second hollow quadrangular prism members 16 ... Are placed alternately. Here, the main body 10 in the unfolded state is shown in FIG. Further, FIG. 3 shows a state where the first hollow quadrangular prism member 14 is expanded, and FIG. 4 shows an assembled state. The state in which the second hollow square column member 16 is expanded is shown in FIG. 5, and the assembled state is shown in FIG.

The main body portion 10 shown in FIG. 2 is made of, for example, one layer of K220A flute or two layers of AB flute cardboard paper. In the unfolded state, the openings 18 ... serve as holes for inserting forks such as forklifts, and the elongated openings 20 ... Are projection locking openings. Here, the projection locking openings 20 ... Are for inserting and locking the locking projections 22.

In addition to the reference numeral 22, protrusions 24 ... Are provided on the peripheral portion of the main body 10. The projections 24 are engaged with the openings 16-o of the second hollow quadrangular prismatic members 16 in the manner described later. The longitudinal direction of the bottom portion 12 of the main body portion 10 is indicated by an arrow L.

The first hollow quadrangular prismatic member 14 is made of, for example, one layer of K220A flute or two layers of AB flute corrugated paper. In the unfolded state shown in FIG. 3, the protrusions 26 ... Are formed on the edge 14-a thereof, while the elongated protrusion locking openings 28 ... Are provided in the vicinity of the opposite edge 14-b. ing. Here, the dotted line portion in FIG. 3 indicates a bending line. 3 is bent along the bending line, and the projections 26 ... Are inserted into the corresponding projection locking openings 28 ... And locked, whereby the assembly is performed as shown in FIG. .. Here, the opening portions 14-o in FIG. 4 are placed corresponding to the openings 18 in the main body portion 10 (see FIG. 1) and act as holes for inserting a fork such as a forklift. In other words, the opening 14-o of the first hollow quadrangular prism member 14 (including the internal space) constitutes a through hole penetrating in the longitudinal direction L (see FIG. 2).

The second hollow quadrangular prism 16 is composed of, for example, two layers of BW700 grade AA flute or three layers of TW1300 Great AAA flute. In the unfolded state shown in FIG. 5, notches 30-a and 30-b for assembly are formed near both ends. The second hollow quadrangular prism 16 in the expanded state is bent along the bending line indicated by the dotted line in FIG. 5, and the notches 30-a and 30-b are overlapped to assemble as shown in FIG. Here, in FIG. 6, reference numeral V indicates the vertical direction. In other words, the opening 16-a of the second hollow quadrangular prism 16 opens vertically. In addition, in the assembled second hollow quadrangular prism 16, a portion where the cutout portions 30-a and 30-b are overlapped is shown in an enlarged manner in FIG. 7.

After placing the first and second hollow quadrangular prisms 14 and 16 on the bottom portion 12 (see FIG. 2) of the main body portion 10 as shown in FIG. 1, as shown in FIG. Along the line 32 (see FIG. 2), the cover surface halves 34, 34 of the main body 10 are placed on the first and second hollow quadrangular prisms 14, 16. Here, the protrusion 24 on the peripheral edge of the lid half 34 is housed in the opening 16-a of the second hollow quadrangular prism 16.

Next, by bending along the bending lines 36, 38, 40 (see FIG. 8), the projection 22 is inserted into the projection locking opening 20 as shown in FIG. As a result, the assembly of the (finished product) flat pallet 50 shown in FIG. 10 is completed.

The flat pallet 50 has good structural strength in the longitudinal direction L and the vertical direction V because the first and second hollow quadrangular columns 14 and 16 housed therein act as reinforcing members. have. Moreover, since it is configured by stacking the cutouts or inserting the projections into the locking openings, it is not necessary to use adhesives or stitches (joining members) at all.

Next, a second embodiment of the present invention applied to a box pallet will be described with reference to FIGS.

In FIG. 11, a joint margin 62 is provided at one end edge of the main body 60 of the box pallet shown in the expanded state. The main body portion 60 is bent along the bending lines 64, 66, 68, 70 shown by dotted lines in the figure, and the joint portion 62 is joined to the corresponding edge 72 by means such as an adhesive or a stitch (reference numeral 74 in FIG. 12). ) To obtain the state shown in FIG. The main body 10 is composed of two or three layers of corrugated cardboard of K220AB flute.

From the state shown in FIG. 12, the bottom half portion 78 is bent along the bending line 76. Prior to this, the protrusion 80 is bent inward along the bending line 77 as shown by the arrow i. The protrusion 80 bent inward (arrow i) will be described later. A state in which the bottom half portion 78 is completely bent along the folding line 76 is shown in FIG.

In FIG. 13, while bending along the bending line 82, the projection 84 at the tip is bent along the bending line 83 and is inserted into the elongated projection locking opening 86. As a result, the state shown in FIG. 14 is obtained. The surface 88 shown at the top in FIG. 14 is the bottom surface of the box pallet of the second embodiment.

In FIG. 14, there is a gap of a predetermined width in the elongated protrusion locking opening 86 even after the protrusion 84 is inserted and engaged. The bottom surface 88 is provided with elongate projection locking openings 87-1 and 87-2, and the projections 91-1 of the reinforcing member 89-1 are inserted into the openings 86 and 87-1. Then, the protrusion 91-2 of the reinforcing member 89-2 is inserted into the openings 86 and 87-2. That is, the two reinforcing members 89-1 and 89-2 are attached to the bottom surface 88. The developed shapes of the reinforcing members 89-1 and 89-2 are shown in FIG. Here, the reinforcing member is indicated by reference numeral 89, and the protrusion is indicated by reference numeral 91.

The state shown in FIG. 18 is obtained by turning over from the state shown in FIG. 14 so that the bottom surface 88 faces downward. 18 and 20, in order to clearly show the positional relationship of the protrusions inserted through the bottom surface 88, the internal structure is shown by solid lines instead of dotted lines.

18, in addition to the protrusion 80 (see FIG. 12), the protrusion 84 (see FIG. 13) and the protrusion 91 (see FIG. 14 and FIG. 15) described above, a U-shaped cross-section member 114 and a hollow square pole member are provided. 116 is shown.

The hollow quadrangular prism member 116 has the same structure as the second hollow quadrangular prism 16 in the first embodiment. On the other hand, the U-shaped member 114 in cross section is shown in FIGS. 16 and 17, and by bending the developed figure along the bending line shown by the dotted line in FIG. A member having a U-shaped cross section 114 extending in the direction L (see FIG. 18) is formed.

The U-shaped member 114 in cross section is configured to be longer than the longitudinal dimension of the main body portion 60 by the amount of the edge portions 114e and 114e. Then, when the member 114 is arranged in the main body portion 60, the edges 114e, 114e come out of the main body portion 60 from the opening indicated by reference numeral 90 in FIG. 18, that is, the hole for inserting a fork such as a forklift. (See Fig. 21).

As will be described later with reference to FIG. 21, the two U-shaped members 114 in cross section and the three hollow quadrangular prism members 116 are alternately arranged at the bottom of the main body 60. When mounted on the bottom surface 88 of the main body 60, the projections 80, 84 and 91 act as a guide member for positioning. At the same time, as shown in FIG. 19, the protrusion 91 is bent along a bending line 93 (see FIG. 15), and the tip 91e of the protrusion 91 has an elongated opening 95 of the U-shaped member 114 in cross section (see FIGS. 16 and 17). It has the effect of being inserted into and engaged with, and attaching and supporting the U-shaped member 114 in cross section to the bottom portion of the main body portion 60. The positional relationship between the protrusion 84 and the protrusion 91 is shown in FIG.

In FIG. 21, two end portions of the U-shaped member 114 in cross section are arranged in such a manner that they are aligned with the opening 90 (FIG. 18). The openings 116-o (see FIG. 18) of the three hollow quadrangular prism members 116 are alternately arranged with the two U-shaped members 114, 114 in the vertical direction (see FIG. 18). (See 18). The protrusions 80 and 84 are located inside the opening 116-o of the hollow quadrangular prism member 116.

In other words, in the state shown in FIG. 21, the opening 116-o of the hollow quadrangular prism member 116 constitutes a groove, and the groove is used when the contents having casters are stored. To protect the casters by storing the contents and preventing the contents from moving inside the box pallet. However, when storing contents without casters, a corrugated cardboard plate-like body (not shown) that fits on the inner wall surface of the main body portion 60 is used as a member having a U-shaped cross section 114 and a hollow quadrangular prism. The member 116 may be covered.

Next, the lid surface half portion 94 is bent along the bending line 92 to bring it into a state as shown in FIG. Then, in the state shown in FIG. 22, the projection 98 is bent along the bending line 96, and the projection 98 is inserted into the elongated projection locking opening 99. As a result, the box pallet 100 as shown in FIG. 23 is completed.

In this box pallet 100, no joining means such as an adhesive or a stitch is used except for the joining portion 74 (FIG. 12) of the joint portion 62. However, in addition to the reinforcing members 89-1 and 89-2 (FIG. 14), the U-shaped cross-section member 114 and the hollow quadrangular prism member 116 placed on the inner side surface of the bottom surface 88 (FIGS. 14 and 18) are provided. Since it acts as a reinforcing member, the bottom part has sufficient structural strength as a pallet. Furthermore, when the contents having casters are stored, the casters can be stored, the contents can be prevented from moving in the box pallet, and the casters can be protected.

It should be noted that the illustrated embodiment is merely an example, and various modifications and changes can be made. For example, if the opening of the main body and the opening of the first hollow quadrangular prism are aligned, the number of the first and second hollow quadrangular prisms can be changed. Then, as described with reference to FIG. 21, a corrugated board-shaped member 114 and a hollow quadrangular prism member 116 may be covered with a corrugated paperboard-like member that fits into the inner wall surface of the main body.

[0040]

[Effect of the device]

 The effects of the present invention are listed below.

(1) There is no need to use bonding members (adhesives, stitches, etc.) made of materials other than paper, almost or not at all.

(2) A structural strength necessary and sufficient for the pallet is guaranteed.

(3) Since little or no adhesives or stitches are used, the efficiency of various handlings and chemical treatments is improved when the paper pallets are spread and reused. It improves the efficiency of the reuse of paper such as corrugated paper.

(4) As a result of improving the efficiency of paper recycling, the processing labor of industrial waste is reduced, and one of the causes of waste pollution is eliminated.

(5) Since the paper pallet can be assembled by bending or locking the protrusions at the locking openings, the labor required for assembly can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an initial state of assembling a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a main body unit used in the first embodiment is expanded.

FIG. 3 is a perspective view showing a developed state of a first hollow quadrangular prism used in the first embodiment.

FIG. 4 is a perspective view showing a state where the first hollow quadrangular prism shown in FIG. 3 is assembled.

FIG. 5 is a perspective view showing a developed state of a second hollow quadrangular prism used in the first embodiment.

FIG. 6 is a perspective view showing a state where the second hollow quadrangular prism shown in FIG. 5 is assembled.

7 is a partially enlarged perspective view of the second hollow quadrangular prism shown in FIG.

FIG. 8 is a perspective view showing an assembled state of the first embodiment of the present invention.

FIG. 9 is a perspective view showing a state in which the first embodiment of the present invention is assembled.

FIG. 10 is a perspective view showing the assembled state of the first embodiment of the present invention.

FIG. 11 is a perspective view showing a state in which a main body unit used in a second embodiment of the present invention is expanded.

FIG. 12 is a perspective view showing one stage or state in the assembly of the second embodiment.

FIG. 13 is a perspective view showing one stage or state in the assembly of the second embodiment.

FIG. 14 is a perspective view showing one stage or state in the assembly of the second embodiment.

FIG. 15 is a perspective view showing a developed state of a reinforcing member used in the second embodiment.

FIG. 16 is a perspective view showing a developed state of a U-shaped cross-section member used in the second embodiment.

FIG. 17 is a perspective view of a U-shaped member in cross section used in the second embodiment.

FIG. 18 is a perspective view showing one stage or state in the assembly of the second embodiment.

FIG. 19 is a perspective view illustrating a method of attaching a U-shaped member in cross section.

FIG. 20 is an enlarged perspective view showing the positional relationship of protrusions.

FIG. 21 is a perspective view showing one stage or state in the assembly of the second embodiment.

FIG. 22 is a perspective view showing one stage or state in the assembly of the second embodiment.

FIG. 23 is a perspective view showing a state where the assembly of the second embodiment is completed.

[Explanation of symbols]

10, 60 ... Main body part 12 ... Bottom part of main body part 14 ... First hollow quadrangular prism 14-o ... First hollow quadrangular prism opening 16 ... Second hollow quadrilateral Prism 16-o ... Opening of second hollow quadrangular prism 18, 90 ... Opening for inserting fork of forklift 20, 28, 86, 99 ... Elongated projection locking opening 22, 24, 26, 80, 84, 91, 91-1 and 91
-2, 98 ... Protrusion 30-a, 30-b ... Notch 31, 32, 36, 38, 40, 64, 66, 68, 7
0, 76, 77, 82, 83, 92, 93, 96 ...
Folding lines 34, 94 ... Half of lid surface 50 ... Flat pallet 62 ... Joint part 72 ... Edge 74 ... Joining part of joint part 78 ... Bottom half part 88 ... Bottom 100 ... Box pallet 114 ... Sectional U-shaped member 114e ... Edge of sectioned U-shaped member 116 ... Hollow square column member 116-o ... Opening portion of hollow square column member L・ ・ ・ Longitudinal direction V ・ ・ ・ Vertical direction

Claims (2)

[Scope of utility model registration request] 1. A first hollow quadrangular prism member having a main body and a reinforcing member arranged at the bottom of the main body, wherein the reinforcing member is opened in the longitudinal direction of the bottom of the main body, and is vertically opened. A second hollow quadrangular prism member, wherein the first and second hollow quadrangular prism members have substantially the same vertical dimension and are placed so as to be alternately arranged on the bottom of the main body. A protrusion for locking is formed at a predetermined position on the peripheral portion of the portion, and at least a part of the protrusion is engaged with the protrusion locking opening in the main body and at the opening of the second square pole member. A paper pallet characterized by being engaged. 2. A main body and a reinforcing member arranged at the bottom of the main body, the reinforcing member having a U-shaped cross-section extending in the longitudinal direction of the bottom of the main body and opening in the up-down direction. Including a hollow quadrangular prism member, the U-shaped cross-section member and the hollow quadrangular prism member are placed such that the vertical dimension is substantially equal and are alternately arranged on the bottom of the main body, and the peripheral portion of the main body is A protrusion for locking is formed at a predetermined position of the protrusion, the protrusion is engaged with a protrusion locking opening in the main body, and a reinforcing member is provided on the bottom surface in parallel with the U-shaped member in cross section. And a locking projection formed at a predetermined position on the peripheral portion of the reinforcing member is engaged with a projection locking opening in the main body.