JP3330349B2 - Paper pallets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat pallet made of paper, which is entirely or mostly made of cardboard or paper products.

[0002]

2. Description of the Related Art Conventionally, there are various types of paper pallets of this type, but in a single-sided pallet,
The upper deck board, the lower deck board, and the girder are all separately formed, and a typical structure is obtained by bonding these with an adhesive.

[0003] Therefore, the conventional paper pallets represented by the above-mentioned structure have a problem that the girder may come off due to a load operation by a forklift or the like, and there is a problem in strength. In addition, because it is a structure where only separate objects are stuck together, even in the event of a drop impact, the impact concentrates only on the impacted portion that hits the floor etc.
Breakage and the like are likely to occur. In addition, since the adhesive portions of the respective parts are exposed, they are vulnerable to water wetting, and an accident such as the bottom of the pallet coming off may occur.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and its purpose is to remove a girder in a load operation of a forklift or the like, or to break or break due to an impact. There is no danger of bottoming out due to wetness,
An object of the present invention is to provide a paper pallet excellent in strength, impact resistance and water resistance.

[0005]

In order to achieve the above object, a paper pallet according to the present invention has the following features.
Lower or lower deck board consisting of a single sheet, which is a paper pallet made entirely or mostly of cardboard or paper products
(1) and left and right sidewalls integrally bent from a pair of opposing edges of the lower deck board, respectively.
(2, 2) , extending to the tip of each sidewall respectively
Half-pieces (4a, 4b) on the lower deck board (1)
Protruding piece bent at the free end thereof inwardly in parallel with
(6) and notch (7) engage half-pieces
A sleeve-shaped main body (a) is formed with the upper surface side deck board (4) connected to the main body (a).
3 pieces located at both ends on the short side and the center between the both ends
(B) is the deck board (1, 4) on the lower side and the upper side.
And the body (a) wraps the girders (b).
The crowded seen both deck boards (1,4) is connected to and supported by, the
The main body (a) has a first fork receiving groove (9) and a second fork receiving groove (9).
The first fork receiving groove (10) is provided.
The groove (9) is provided with a gap (1) between the three girders (b).
Opening on sidewalls (2, 2) corresponding to 1)
(9 ') to form a second fork receiving groove.
(10) Coaxial holes (10 ') beside each girder (b)
Opened and formed, and each digit (b) is a single corrugated board
Girder formed by bending a blank (12 ') into a square tube
Sleeve (12) and block installed inside the girder sleeve
(13), and the hole (10 ') is a girder sleeve
Make a U-shape cut, leaving one side of the square on the side of (12)
Insert the part (16) surrounded by this notch into the hole (10 ')
It is characterized by being formed by being folded into. Also book
The present invention provides a load fixing member mounting plate according to claim 2.
(D) on the upper deck board (4) of the main body (a)
Surface, and the loading plate (c) is bonded and fixed on it.
It is characterized by having been done.

[0006]

According to the paper pallet of the present invention constructed as described above, the upper deck board and the lower deck board are integrally formed and enclose the girders, so that the girders are firmly and firmly attached to the main body. Will be retained. Therefore, there is no risk that the girder will come off when loading with a forklift or the like, and the strength can be greatly improved. In addition, since the girder is entirely wrapped in the main body, it does not receive drop impact directly by itself,
Shock can be absorbed by each part including the main body, and it is excellent in cushioning. Further, since the spar is wrapped in the main body and integrated as a whole, the spar is excellent in water resistance, and there is no danger that the bottom will come off with a little wetness. The girder sleeve
Make a U-shaped notch on the side and fold that part toward the hole
Can help the strength enhancement mentioned above.
You.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The figure shows, as an example of the embodiment of the present invention, a single-sided four-sided flat pallet, in which a is a main body and b is a girder. The main body a is constructed by bending and assembling one piece of corrugated cardboard blank.
As shown in FIG. 3B, in the unfolded state, left and right sidewalls 2 are respectively extended through ruled lines 3 on both longitudinal edges of the lower surface side deck board 1 formed in a rectangular shape. Half pieces 4a, 4b constituting the upper deck board 4 are respectively extended at the tips of the side walls 2, 2 via ruled lines 5. The half pieces 4a and 4b of the upper deck board 4 are formed to have a length corresponding to a half of the length of the lower deck board 1 in the transverse direction. A notch 7 having a dovetail section corresponding to the protruding piece 6 is provided at the free end of the other half piece 4b.

In the main body a, the side wall 2 is bent at right angles to the lower surface side deck board 1 toward the upper surface side, and the half pieces 4a and 4b of the upper surface side deck board 4 are further The upper end deck board 4 facing the lower deck board 1 is formed by being bent at right angles to each other and connecting their free ends to each other by the engagement of the projection 6 and the notch 7. Therefore, the main body a has a flat rectangular sleeve shape.

In the main body a, three girders b are disposed between the lower deck board 1 and the upper deck board 4 by being positioned at both short ends and in the center between the two ends. 3
The spar b is wrapped in the main body a from the longitudinal direction.
A lower opening 8 is opened in the main body a, and a first fork receiving groove 9 for receiving a fork of a forklift from a longitudinal side and a second fork receiving groove 10 for receiving a fork of a forklift from a short side are provided. The lower opening 8 is formed in the lower deck board 1 between the three girders b, and the first fork receiving groove 9 is formed in the side of the main body corresponding to the gap 11 between the three girders b. By providing an opening 9 ′ in the wall, the wall is formed in a tunnel shape penetrating the main body a in the lateral direction. Also, the second fork receiving groove 10 is provided with a hole which penetrates the three girders b from the side.
It is formed by opening 10 'coaxially.

On the other hand, the spar b is formed by bending and assembling a single corrugated cardboard blank 12 ′ and forming a spar sleeve 12 having a length corresponding to the length in the short direction of the main body a.
And a block 13 provided inside the girder sleeve 12,
The outer peripheral surface of the girder sleeve 12 is fixed to the inner surface of the main body a by a fixing means such as an adhesive.

The block 13 is disposed in the girder sleeve 12 at three axially opposite ends and at the center of the girder sleeve 12 and is adhered and fixed to the sleeve 12 to form the second fork receiving groove 10. A hole 10 ′ is formed in the side surface of the girder sleeve 12 corresponding to the gap 14 between the blocks 13. The above hole 10 'that opens into the girder sleeve 12 can also be formed by cutting out the side of the girder sleeve 12 into a square
In the case, an incision in a U-shape, leaving the vertical side of the rectangle as shown in FIG. 4 (a), by the so folded portions 16 surrounded by the cut into the hole 10 'side, the intensity It can help with enhancement.

The block 13 is formed by successively bending a strip formed by cutting a corrugated cardboard in accordance with a ruled line (not shown) provided at substantially equal intervals in the longitudinal direction, so that at least one surface has a double structure. It is formed in a square shape, is disposed in the girder sleeve 12 in an upright state with the axial direction facing up and down,
The girder sleeve 12 is adhesively fixed to the inner surface.

In the figure, c is a load carrying plate, d is a load fixing member mounting plate, and the load fixing member mounting plate d is adhered to the upper surface of the upper deck board 4 of the main body. The plate c is adhesively fixed. These loading plates c
Further, a fixing hole 15 for fitting and fixing a load fixing member formed of a molded block such as styrene foam and serving as a buffer and also for fixing the load is formed in the load fixing member mounting plate d.

[Brief description of the drawings]

FIG. 1 is a perspective view of a paper pallet showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line (2)-(2) of FIG.

FIG. 3 is an exploded perspective view.

4A and 4B are exploded perspective views illustrating an assembled state, in which FIG. 4A is an exploded perspective view illustrating an assembled state of a spar, and FIG. 4B is an exploded perspective view illustrating an assembled state of a main body.

[Explanation of symbols]

 a: Body b: Girder 1: Lower deck board 2: Side wall 4: Upper deck board 12: Girder sleeve 13: Block

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 19/34

Claims (2)

(57) [Claims] The present invention relates to a paper pallet made of cardboard or paper products in whole or in large part, comprising a lower deck board (1) made of a single plate and a pair of opposite edges of the lower deck board. The left and right sidewalls (2, 2) which are respectively turned upright, and the half pieces (4a,
4b) is bent inward in parallel with the lower deck board (1) and has a projection (6) and a notch (7) provided at its free end.
The upper side cutout which connects the half pieces by engagement
A sleeve-shaped main body (a) is formed with the keyboard (4), and a short-side end of the main body (a) is formed between the two ends.
Position the three girders (b) in the center and
Placed between deck boards (1, 4)
(A) Wrap those digits (b) and wrap both deck boards
(1, 4) are connected and supported, and the main body (a) has a first fork receiving groove (9).
A second fork receiving groove (10) is provided, and the first fork is formed.
The groove (9) is a gap between the three beams (b).
Opening in the sidewalls (2, 2) corresponding to (11)
(9 ') to form a second fork receiving groove.
(10) Coaxial holes (10 ') beside each girder (b)
Opened and formed, and each girder (b) is a single cardboard blank (1
2 ') is folded into a square tubular girder sleeve (1
2) and a block (13) provided inside the girder sleeve.
Ri, further said holes (10 ') is a four on the sides of the digits sleeve (12)
Make a U-shaped cut, leaving one side of the square,
Folds the part (16) surrounded by with the hole (10 ')
A paper pallet characterized by being made. 2. The cargo fixing member mounting plate (d) is mounted on the main body.
(A) is adhered to the upper surface of the deck board (4),
2. A loading plate (c) is fixedly adhered on the surface.
Paper pallet as described.