JPH0230936B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for molding a component board for a synthetic resin pallet, which is molded to include a board surface part and a girder part.

Generally, the above-mentioned construction panels are used to construct a synthetic resin pallet by joining two of them together at their beam parts. by the way,
When handling and storing various articles, a plurality of synthetic resin pallets are prepared that differ in size and shape, and these pallets are used appropriately depending on various conditions.

As mentioned above, in order to obtain multiple types of pallets that differ at least in size among the sizes and shape patterns, it is conventional If molds were prepared and manufactured individually, the investment cost for the entire pallet manufacturing equipment, including the investment cost for the molds, would be enormous, and this was the biggest factor in the increase in the unit price of pallets. In particular, when comparing the constituent plates of multiple types of pallets, even if the differences in size and shape are extremely small compared to the whole pallet, conventionally the above-mentioned individual and uneconomical manufacturing is required. This led to an increase in costs, and this was the root cause of preventing the spread of resin pallets.

In view of the above-mentioned circumstances, the present invention has an object to enable the construction of a plurality of types of pallets using manufacturing means as economical as possible, and this invention has been made to achieve this object. The feature of the molding method of the invention is that the position of the molding frame portion of the side portion of the composition plate constituting the synthetic resin pallet relative to the mold body is changed, or the mold body 8 of a plurality of types is placed in the mold body 8. This type of forming method involves finding the greatest common divisor of the dimensions and shape patterns of the constituent plates of multiple types of pallets.
The molds necessary for molding the parts corresponding to the greatest common divisor are made into common equipment, and the molds for the side parts, which require various changes as mentioned above, are used to form the constituent plates of different pallets. By combining the movable formwork parts necessary for molding, it is possible to obtain multiple pallet component plates that differ at least in shape and size as a whole, and the investment cost for manufacturing equipment including molds is reduced. The aim is to reduce the amount of water used, and the utmost effort has been made to achieve this goal.
This makes it possible to offer multiple types of pallets to the market at low cost, and is therefore extremely useful in increasing the popularity of resin pallets, which are superior in terms of durability and performance compared to wooden or metal pallets. We have achieved results.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.The resin pallet 1 shown in FIG. 1 and the resin pallet 2 shown in FIG. [Specifically, the holes 3 that are punched out at appropriate intervals along the length of the pallet are approximately square in plan view on one side of pallet 1, and rectangular on the other side of pallet 2] and the width dimension L. ₁ and L ₂ are different from each other, but
The shape pattern in most of the other parts 1B and 2B [specifically, the vertical and horizontal resin girder portions 5 filled with reinforcing material 4 such as carbon steel pipes, and the rectangular shape in plan view divided by the resin girder portions 5. Reinforcing rib portions 6 cross-linked in a substantially X-shape in plan view in each blank area, arrangement of anti-slip rubber 3' with respect to the placed article, and number, size, arrangement of anti-slip rubber 7 with respect to the insertion fork of the forklift]; The length x width dimensions (X and Y) are equal to each other, that is, they are constructed in a congruent shape. The above-mentioned pallets 1 and 2 are both of a two-way type that can be used on both sides, and as shown in Fig. 4, two identical constituent plates 1a or 2a are joined at the girders 10 and 10 in an inverted position. It is made up of.

Gold for molding the pallet component plates 1a and 2a that constitute the two types of pallets 1 and 2 (or three or more types may be used, but for ease of explanation and understanding, two types will be explained) as described above. Type K is conceptually shown in Figure 3. In this FIG. 3, 8 is a mold body, and its vertical dimension
The vertical width dimension X and the horizontal width dimension Y in the common parts 1B and 2B are equal to each other, and this mold body 8 is made so that the same shape and pattern can be formed in the common parts 1B and 2B of both the component boards 1a and 2a. It is designed and manufactured. Reference numeral 9 denotes a movable formwork, and by displacing it in the direction A←→B during overall molding or replacing it, the forming board 1a or 2a of the pallet 1 shown in FIG. 1 or the pallet 2 shown in FIG. 2 can be formed. It is shaped arbitrarily.

In addition, common parts 1B and 2 of both component boards 1a and 2a
Regarding B, only the vertical width dimension X and the horizontal width dimension Y may be the same and the deck surface pattern, color, number and arrangement of anti-slip rubber, etc. may be different, or all of them may be the same.

FIGS. 5 and 6 show two types of resin pallets 1 and 2 in another embodiment, both of which are pallets 1 and 2.
2 is a shape pattern in each side part 1A, 2A [specifically, holes 3 which are punched and formed at appropriate intervals along the longitudinal direction of one pallet 1
The width dimensions L ₁ and L ₂ are different from each other, and the shape pattern in most of the other parts 1B and 2B [specifically, The vertical and horizontal resin girders 5 filled with reinforcing material 4, the reinforcing rib portion 6 cross-linked in an They are constructed in the same congruent shape, and are almost the same as those of the above embodiment in these respects, but the difference from the above embodiment is that the side portions 1A,
Reinforcing members 4, 4 located at 2A and the common portion 1
B, reinforcing material 4 located at the outermost side in 2B,
4, the center-to-center dimensions l ₁ and l ₂ are different from each other.

[Brief explanation of drawings]

The drawings show an embodiment of the synthetic resin pallet according to the present invention, and FIG. 1 and FIG. 2 are plan views, FIG. 3 is a conceptual diagram of a molding die, FIG. 4 is a side view of the pallet, and FIG.
6 are plan views showing another embodiment. 1, 2...Pallet, 8...Mold body, 9...Formwork part, 1A, 2A...Side part, 1B, 2B...Part excluding side part.

Claims (1)

[Claims] 1 A method for molding a construction board for a synthetic resin pallet that is molded to include a board surface part and a girder part 10, in which the mold body 8 of the molding frame part 9 of the side parts 1A and 2A of the construction board is By changing the position or replacing the plural types of mold parts 9 with respect to the mold body 8, the side parts 1A, 2A
Among the shapes and widths in 1B and 2, at least the dimensions are different from each other, and most of the other
A method for molding a composition plate for a synthetic resin pallet, which involves molding a plurality of types of composition plates having the same shape pattern and dimensions as shown in B.