JPS6217387Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a pallet for pallet shrink packaging.

[Prior art]

This type of pallet is usually used in a shape defined by ISO, JIS standards, etc., and a conventional example is, for example, Japanese Patent Application Laid-Open No. 50-66385 entitled "Shrink Packaging Method and Apparatus". In the method described in this publication, for example, a pallet 1 loaded with packaged products 7 covered with a synthetic resin film 6 is carried into a heating chamber, and heated gas is fed from the top and both sides of the heating chamber to remove the packaged products. In a shrink packaging method in which the synthetic resin film is heated and shrunk by blowing the gas onto each side of the loaded pallet and discharging the gas through an exhaust hole formed in the bottom wall of the heating chamber below the pallet, the packaged product loaded pallet is The plastic film is raised to a predetermined height above the bottom wall of the heating chamber and heated gas is blown to shrink the synthetic resin film for packaging. An exhaust hole is provided in the center of the bottom wall of the heating chamber between the two rails of the conveyor, and a pallet lifting platform is located within the exhaust hole.

In this conventional example, since the shrink film covers the bottom or lower surface of the pallet, the film is abraded and torn off during transportation and handling, weakening the fixing force between the pallet and the loaded items. Furthermore, there was a drawback that the load was likely to collapse.

In addition, in order to prevent such collapse of the cargo, it is conceivable to have a structure in which the film is bent toward the bottom of the pallet relative to the loading height of the items to be packaged.
In such a configuration, there is a considerable waste of film compared to the amount of film that is originally required. Adhesive tape 8 or a sealing needle 9 was used to fix the end of the film to the bottom of the pallet.

[Summary of the idea]

This invention aims to prevent the decrease in the fixing force to the packaged object due to the abrasion of the film in the conventional case, and also to eliminate wastage of the amount of film used.The structure and purpose are as follows. It is.

(Structure) A pallet is composed of upper and lower deck boards facing each other, and a girder plate that is inserted between these deck boards and forms a fixing part to which the shrink film is fixed, all around the side surface of the pallet. There is.

(Purpose) To maintain the fixing force with the packaged items over a long period of time,
Moreover, it is an object of the present invention to provide a shrink packaging pallet in which the amount of film used does not increase in maintaining fixing force.

[Explanation of Examples]

An embodiment of this invention will be described below with reference to FIGS. 2 and 3.

That is, in FIG. 2, 2a, 2b, 2c
The planar board 3 is an upper decking board having a rectangular planar shape, and 4 is a lower decking board facing the upper decking board 3 and having almost the same shape as the upper decking board 3. Reference numeral 5 denotes a wing section which is constructed between the upper decking board 3 and the lower decking board 4 and is formed over the entire circumference of the side surface of the pallet. 6 is a shrink film.

In this structure, a gusset seal is placed over the packaged items 7 loaded on the pallet 1 with a depth determined by considering the height of the packaged items, the height of the pallet, and the shrinkage rate of the film. The bag-shaped shrink film 6 is placed over the pallet, its hem is inserted into the wing portion 5, and then heated and shrunk to be fixed to the pallet wing portion 5.

In this embodiment, the wing portion 5 is formed by the shingle plate 2 and constitutes a fixing portion for fixing the hem of the shrink film 6.

Further, in FIG. 3, 2a', 2b', and 2c' are grooves provided in the shingle plate. In a device configured in this way, the shrink film 6
The hems of the grooves 2a', 2b', and 2c' are heated and contracted to be fixed.

In this embodiment, the grooves 2a', 2b', and 2c' are formed by the shingle plate 2 and constitute a fixing part for fixing the hem of the shrink film 6.

In each of these embodiments, as described above,
The hem of the gusset-sealed bag-shaped shrink film is attached to the pallet wings and the hem of the shrink film is sealed to a predetermined depth in consideration of the height of the packaged items loaded on the pallet, the height of the pallet, and the shrinkage rate of the film. It is configured to be fixed by heating and shrinking in a fixing part such as a girder plate groove, and therefore, it is possible to prevent a decrease in fixing force due to abrasion of the film, and to improve the possibility of the load collapsing. Furthermore, the work of attaching or fixing the hem of the shrink film to the bottom of the pallet can be omitted, and at the same time, the amount of film used can be reduced, and packaging can be streamlined to a large extent.

Note that the groove 2 provided in the pallet board 2a
As shown in FIG. 4, the cross-sectional shape of a' can be various shapes such as rectangular, triangular, semicircular, and hook-like.

[Effect of idea]

In this way, in this invention, a fixed part to which the hem of the shrink film is fixed is formed around the entire circumference of the side surface of the pallet by means of a girder plate inserted between the upper decking board and the lower decking board. Thus, a shrink packaging pallet can be obtained which can maintain fixing force to the packaged object over a long period of time, and does not require an increase in the amount of film used in maintaining the fixing force.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a perspective view showing an embodiment of this invention, Fig. 3 is a perspective view of another embodiment, and Fig. 4 is a perspective view of a plate groove in another embodiment. It is an enlarged sectional view showing some modification examples. In addition, in the figure, 1 is a pallet, 2a, 2b, 2c
The exposed boards, 2a', 2b', 2c' are the grooves of the exposed boards, 3 is the upper deck board, 4 is the lower deck board, 5 is the wing section, 6 is the shrink film, and 7 is the packaged items loaded on the pallet. , 8 is an adhesive tape, and 9 is a sealing needle.

Claims (1)

[Scope of utility model registration request] In the pallet 1 on which the shrink film covering the object to be packaged is heated and fixed, the above-mentioned pallet 1
An upper deck board 3 on which the object to be packaged is placed, a lower deck board 4 opposite to the upper deck board 3, and a hem portion of the shrink film that is inserted between these two deck boards and covers the object to be packaged is fixed. A pallet for shrink packaging, characterized in that the fixing part is constituted by a girder plate 2 formed over the entire circumference of the side surface of the pallet.